Driving device of caulking gun

• US 10,654,067 B2
• Filed: 03/12/2019
• Issued: 05/19/2020
• Est. Priority Date: 04/11/2018
• Status: Active Grant

• Current Assignee: Ping-Tzu Ho
• Original Assignee: Ping-Tzu Ho
• Inventors: Ho, Ping-Tzu, Ho, I-Pei
• Primary Examiner(s): Buechner, Patrick M.
• Assistant Examiner(s): Melaragno, Michael J.
• Application Number:
  US16/299,720
• Publication Number:
  US 20190314856A1
• Time in Patent Office: 434 Days
• Field of Search: 222390
• CPC Class Codes: B05C 17/0103 with electrically actuated piston or the like
• CPC Class Codes: B05C 17/012 Stepwise advancing mechanism, e.g. pawl and ratchets
• CPC Class Codes: B05C 17/0133 Nut and bolt advancing mechanism, e.g. threaded piston rods

Abstract

A driving device of caulking gun includes a housing, a driving assembly, a threaded rod, and a transmission assembly. The housing defines an axial direction. The driving assembly is disposed on the housing and includes a motor assembly and a driving gear. The motor assembly and the driving gear are linked-up to rotate simultaneously. The threaded rod is slidably disposed on the housing and is nonrotatable with respect to the housing. The threaded rod is formed with a spiral groove. The transmission assembly is arranged in the housing and includes a transmission sleeve and a plurality of abutting members. The transmission sleeve is sleeved onto the threaded rod and is radially formed with a plurality of through holes. The abutting members are received in the through holes respectively. The transmission sleeve and the driving gear are linked-up.

Claims

1. A driving device of caulking gun including:

a housing, defining an axial direction;

a driving assembly, disposed on the housing, including a motor assembly and a driving gear, the motor assembly and the driving gear being linked-up to rotate simultaneously;

a threaded rod, slidably disposed on the housing and being nonrotatable with respect to the housing, the threaded rod being formed with a spiral groove;

a transmission assembly, arranged in the housing, including a transmission sleeve and a plurality of abutting members, the transmission sleeve being sleeved onto the threaded rod and being radially formed with a plurality of through holes, the abutting members being received in the through holes respectively, the transmission sleeve and the driving gear being linked-up;

a clutch device, including a restriction assembly and a braking member, the restriction assembly being sleeved onto the transmission sleeve, the braking member being movable with respect to the housing between a first position and a second position;

wherein when the braking member is located at the first position, the braking member radially abuts against the restriction assembly, the restriction assembly pushes the abutting members to make the abutting members abut against the spiral groove so that the threaded rod is irremovable with respect to the transmission sleeve along the axial direction;

when the braking member is located at the second position, the restriction assembly is not abutted against by the braking member, the abutting members are free from restriction by the restriction assembly so that the abutting members are able to leave the spiral groove and that the threaded rod is slidable with respect to the transmission sleeve along the axial direction;

wherein the braking member is sleeved onto the transmission sleeve and is slidable with respect to the transmission sleeve along the axial direction, the braking member includes a circumferential wall;

when the braking member is located at the first position, the circumferential wall is sleeved onto the restriction assembly;

when the braking member moves toward the second position, the braking member moves away from the restriction assembly, the circumferential wall leaves the restriction assembly;

wherein the restriction assembly includes at least two clamping plates and an elastic buckle member, the at least two clamping plates enclose a column-shape space therebetween, the elastic buckle member is sleeved onto the at least two clamping plates to make the at least two clamping plates tend to abut toward the transmission sleeve radially;

when the braking member is located at the first position, the circumferential wall is sleeved onto the at least two clamping plates;

when the braking member is located the second position, the at least two clamping plates are released from the circumferential wall.

2. The driving device of caulking gun of claim 1, wherein transmission sleeve is formed with at least flange along a circumferential direction thereof, each of the clamping plates is formed with a notch, the flanges are embedded in the notches respectively so that the each of the clamping plates is irremovable with respect to the transmission sleeve along the axial direction.

5. The driving device of caulking gun of claim 1, wherein each of the abutting members is a rolling ball, each of the abutting members is slidably arranged in the through hole.

6. The driving device of caulking gun of claim 1, wherein the transmission sleeve has an outer thread section at an end thereof remote from the braking member, the driving gear has an inner thread section, the driving gear is sleeved onto the transmission sleeve, the inner thread section is screwed with the outer thread section.

7. The driving device of caulking gun of claim 1, wherein the housing has a rotation-preventing member, the rotation-preventing member has an insertion hole, the insertion hole has a flat section, the threaded rod is inserted through the insertion hole and has a recess section corresponding to the flat section.

3. A driving device of caulking gun including:

a housing, defining an axial direction;

a driving assembly, disposed on the housing, including a motor assembly and a driving gear, the motor assembly and the driving gear being linked-up to rotate simultaneously;

a threaded rod, slidably disposed on the housing and being nonrotatable with respect to the housing, the threaded rod being formed with a spiral groove;

a transmission assembly, arranged in the housing, including a transmission sleeve and a plurality of abutting members, the transmission sleeve being sleeved onto the threaded rod and being radially formed with a plurality of through holes, the abutting members being received in the through holes respectively, the transmission sleeve and the driving gear being linked-up;

a clutch device, including a restriction assembly and a braking member, the restriction assembly being sleeved onto the transmission sleeve, the braking member being movable with respect to the housing between a first position and a second position;

wherein when the braking member is located at the first position, the braking member radially abuts against the restriction assembly, the restriction assembly pushes the abutting members to make the abutting members abut against the spiral groove so that the threaded rod is irremovable with respect to the transmission sleeve along the axial direction;

when the braking member is located at the second position, the restriction assembly is not abutted against by the braking member, the abutting members are free from restriction by the restriction assembly so that the abutting members are able to leave the spiral groove and that the threaded rod is slidable with respect to the transmission sleeve along the axial direction;

wherein the braking member is sleeved onto the transmission sleeve and is slidable with respect to the transmission sleeve along the axial direction, the braking member includes a circumferential wall;

when the braking member is located at the first position, the circumferential wall is sleeved onto the restriction assembly;

when the braking member moves toward the second position, the braking member moves away from the restriction assembly, the circumferential wall leaves the restriction assembly;

wherein the circumferential wall expands toward the restriction assembly, the restriction assembly has a tapering section at an end thereof facing the circumferential wall, when the braking member is located at the first position, the circumferential wall is sleeved onto the tapering section.

8. The driving device of caulking gun of claim 3, wherein each of the abutting members is a rolling ball, each of the abutting members is slidably arranged in the through hole.

9. The driving device of caulking gun of claim 3, wherein the transmission sleeve has an outer thread section at an end thereof remote from the braking member, the driving gear has an inner thread section, the driving gear is sleeved onto the transmission sleeve, the inner thread section is screwed with the outer thread section.

10. The driving device of caulking gun of claim 3, wherein the housing has a rotation-preventing member, the rotation-preventing member has an insertion hole, the insertion hole has a flat section, the threaded rod is inserted through the insertion hole and has a recess section corresponding to the flat section.

4. A driving device of caulking gun including:

a housing, defining an axial direction;

a driving assembly, disposed on the housing, including a motor assembly and a driving gear, the motor assembly and the driving gear being linked-up to rotate simultaneously;

a threaded rod, slidably disposed on the housing and being nonrotatable with respect to the housing, the threaded rod being formed with a spiral groove;

a transmission assembly, arranged in the housing, including a transmission sleeve and a plurality of abutting members, the transmission sleeve being sleeved onto the threaded rod and being radially formed with a plurality of through holes, the abutting members being received in the through holes respectively, the transmission sleeve and the driving gear being linked-up;

a clutch device, including a restriction assembly and a braking member, the restriction assembly being sleeved onto the transmission sleeve, the braking member being movable with respect to the housing between a first position and a second position;

wherein when the braking member is located at the first position, the braking member radially abuts against the restriction assembly, the restriction assembly pushes the abutting members to make the abutting members abut against the spiral groove so that the threaded rod is irremovable with respect to the transmission sleeve along the axial direction;

when the braking member is located at the second position, the restriction assembly is not abutted against by the braking member, the abutting members are free from restriction by the restriction assembly so that the abutting members are able to leave the spiral groove and that the threaded rod is slidable with respect to the transmission sleeve along the axial direction;

wherein the braking member is sleeved onto the transmission sleeve and is slidable with respect to the transmission sleeve along the axial direction, the braking member includes a circumferential wall;

when the braking member is located at the first position, the circumferential wall is sleeved onto the restriction assembly;

when the braking member moves toward the second position, the braking member moves away from the restriction assembly, the circumferential wall leaves the restriction assembly;

wherein the clutch device further includes an elastic member and a toggle bar, the elastic member is biased between the housing and the braking member so that the braking member tends to move toward the first position, the toggle bar is pivotally disposed on the housing, an end of the toggle bar abuts against the braking member, the braking member is moved toward the second position when an end of the toggle bar remote from the braking member is pressed.

11. The driving device of caulking gun of claim 4, wherein each of the abutting members is a rolling ball, each of the abutting members is slidably arranged in the through hole.

12. The driving device of caulking gun of claim 4, wherein the transmission sleeve has an outer thread section at an end thereof remote from the braking member, the driving gear has an inner thread section, the driving gear is sleeved onto the transmission sleeve, the inner thread section is screwed with the outer thread section.

13. The driving device of caulking gun of claim 4, wherein the housing has a rotation-preventing member, the rotation-preventing member has an insertion hole, the insertion hole has a flat section, the threaded rod is inserted through the insertion hole and has a recess section corresponding to the flat section.