Manual clamp

Patent metadata

Field	Value
Publication number	US-11969866-B2
Application number	US-202017427356-A
Country	US
Kind code	B2
Filing date	Jan 22, 2020
Priority date	Feb 1, 2019
Publication date	Apr 30, 2024
Grant date	Apr 30, 2024

Abstract

A manual clamp, comprising: a sliding rod; a fixed clamp body fixed at one end of the sliding rod; a movable clamp body sliding on the sliding rod; a movable clamp head sliding on the movable clamp body; a handle rotationally connected to the movable clamp body; a cam portion provided at one end, close to the movable clamp head, of the handle, wherein when the handle is operated, the cam portion comes into contact with the movable clamp head and drives the movable clamp head to move toward the fixed clamp body to realize clamping, or the cam portion disengages from the movable clamp head to realize loosening; and a locking device configured to lock a position of the handle or unlock the handle by releasing the locking device. The manual clamp may realize clamping by pulling the handle once when clamping an object, thereby improving the efficiency.

First claim

The invention claimed is:

1. A manual clamp, comprising:
a sliding rod;
a fixed clamp body which is fixedly connected to one end of the sliding rod;
a movable clamp body which is removably connected to the sliding rod;
a movable clamp head which is removably connected to the movable clamp body;
a handle which is rotationally connected to the movable clamp body, wherein the handle comprises a first side plate and a second side plate which are oppositely provided, and one end of the first side plate that is close to the movable clamp body and one end of the second side plate that is close to the movable clamp body are both processed into shapes of cams to form a cam portion which is configured to come into contact with or disengage from the movable clamp head by operating the handle, and the cam portion being further configured to exert a driving force to the movable clamp head through the contact with the movable clamp head, thus being able to drive the movable clamp head to move toward the fixed clamp body to realize clamping; and
a locking device which is configured to fix a position of the handle when clamping.

2. The manual clamp of claim 1 , wherein the locking device comprises:
a ratchet which is provided on the movable clamp body;
a pawl which is matched with the ratchet and is provided on the handle;
an elastic element which is configured to exert an elastic force to the pawl, such that the pawl meshes with the ratchet; and
an unlocking component which is configured to be operated to overcome the elastic force of the elastic element, such that the pawl is out of mesh with the ratchet.

3. The manual clamp of claim 2 , wherein the handle comprises a first side plate and a second side plate which are oppositely provided, and a reinforcing member fixed between the first side plate and the second side plate, wherein the reinforcing member is arranged on one end of the handle away from the movable clamp head; and the first side plate and the second side plate are respectively located on both sides of the movable clamp body and are connected to the movable clamp body through a first pin shaft.

4. The manual clamp of claim 3 , wherein the pawl is provided within a space enclosed by the first side plate, the second side plate and the reinforcing member, and the pawl is connected to the first side plate and the second side plate through a second pin shaft.

5. The manual clamp of claim 4 , wherein the unlocking component comprises a pawl sheath fixedly connected to the pawl, and the elastic element is configured to exert an elastic force to the pawl sheath.

6. The manual clamp of claim 5 , wherein at least a part of the pawl sheath is located outside the handle.

7. The manual clamp of claim 5 , wherein the elastic element comprises a spring.

8. The manual clamp of claim 7 , wherein the pawl sheath is provided with a recessed hole, the spring is located in the recessed hole, one end of the spring is connected to the pawl sheath, and the other end of the spring is connected to the reinforcing member.

9. The manual clamp of claim 2 , wherein the ratchet and the movable clamp body are formed integrally.

10. The manual clamp of claim 2 , wherein the ratchet is independent of the movable clamp body, and the ratchet is fixedly mounted on the movable clamp body.

11. The manual clamp of claim 1 , wherein the movable clamp head comprises a first part and a second part which are symmetrically provided and at least one pair of sliding slots, wherein the at least one pair of sliding slots are respectively provided on the first part and the second part, and a guide pin on the movable clamp body is sheathed in the at least one pair of sliding slots respectively.

12. The manual clamp of claim 11 , wherein the movable clamp head is provided with two pairs of the sliding slots, and at least two of the guide pins on the movable clamp body are sheathed in the two pairs of sliding slots respectively, wherein a length direction of each slot of the two pairs of sliding slots is substantially parallel to a moving direction of the movable clamp head.

13. The manual clamp of claim 1 , wherein the movable clamp body is provided with two positioning pins, and the two positioning pins are configured to come into contact with the sliding rod when clamping.

14. The manual clamp of claim 1 , wherein the fixed clamp body is fixed on the sliding rod through a first pin.

15. The manual clamp of claim 14 , wherein the fixed clamp body is also provided with a second pin, and the second pin comes into contact with the sliding rod when clamping.

16. The manual clamp of claim 1 , wherein the fixed clamp body and the sliding rod are formed integrally.

17. The manual clamp of claim 1 , wherein a limit pin is provided at the other end, away from the fixed clamp body, of the sliding rod.

18. The manual clamp of claim 1 , wherein the fixed clamp body is provided with a first sheath, and/or the movable clamp head is provided with a second sheath.

19. A manual clamp, comprising:
a sliding rod;
a fixed clamp body which is fixedly connected to one end of the sliding rod;
a movable clamp body which is removably connected to the sliding rod;
a movable clamp head which is removably connected to the movable clamp body;
a handle which is rotationally connected to the movable clamp body, wherein the handle comprises a first side plate and a second side plate which are oppositely provided, and a reinforcing member fixed between the first side plate and the second side plate, wherein the reinforcing member is arranged on one end of the handle away from the movable clamp head, and the first side plate and the second side plate are respectively located on both sides of the movable clamp body and are connected to the movable clamp body through a first pin shaft, one end of the first side plate that is close to the movable clamp body and one end of the second side plate that is close to the movable clamp body are both processed into shapes of cams to form a cam portion which is configured to come into contact with or disengage from the movable clamp head by operating the handle, and the cam portion being further configured to exert a driving force to the movable clamp head through the contact with the movable clamp head, thus being able to drive the movable clamp head to move toward the fixed clamp body to realize clamping;
a ratchet which is provided on the movable clamp body;
a pawl which is matched with the ratchet and is rotationally provided between the first side plate and the second side plate;
an elastic element which is configured to exert an elastic force to the pawl, such that the pawl meshes with the ratchet; and
a pawl sheath which is connected to the pawl and is configured to be operated to overcome the elastic force of the elastic element, such that the pawl is out of mesh with the ratchet.

20. The manual clamp of claim 19 , wherein the movable clamp head comprises a first part and a second part which are oppositely provided and at least two pairs of sliding slots, wherein the at least two pairs of sliding slots are respectively provided on the first part and the second part, and at least two guide pins on the movable clamp body are sheathed in the at least two pairs of sliding slots respectively.

Assignees

• Hangzhou United Tools Co Ltd
• Hangzhou Great Star Ind Co Ltd

Inventors

• Li Yueming

Classifications

• B25B5/02 Primary

  with sliding jaws · CPC title

• B25B5/082

  C-clamps · CPC title

• B25B5/068 Primary

  with at least one jaw sliding along a bar (B25B5/061, B25B5/085, B25B5/102, B25B5/127 take precedence) · CPC title

• B25B5/08

  using cams · CPC title