Labor-saving clamp holder

Abstract

The labor-saving clamping device comprises a gun shell, an extension pipe is arranged on the gun shell in an extending mode, the outer end of the extension pipe is connected with a clamping head assembly capable of being opened and closed, and a driving assembly used for driving the clamping head assembly to be opened and closed is arranged in the gun shell. The driving assembly comprises a sliding block connected in the gun shell in a sliding mode and a pulley block connected with the sliding block, a traction rope is connected between the pulley block and the chuck assembly, the gun shell is movably connected with a trigger, and the trigger is connected with the sliding block through a transmission structure and used for driving the sliding block to slide and finally driving the traction rope. The utility model has the advantages that the labor is saved, and the operation is more comfortable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamping device, especially to a labor-saving clamping device. BACKGROUND

[0002] The garbage clamp and other similar clamping devices of prior art usually adopt a simple lever mechanism, which mainly includes a gun-shaped handle and a pair of clamps. The handle is internally provided with a trigger and is directly connected to the clamps through a steel wire. When the user squeezes the trigger, the steel wire is pulled, thereby driving the clamps to close to clamp the target object. After releasing the trigger, the clamps are opened by the elasticity of the clamps themselves or other reset mechanisms.

[0003] However, this traditional clamping device design has a significant defect: since the clamping force is directly transmitted from the user's fingers to the clamps through the trigger and the steel wire, when clamping heavy or hard objects, the user needs to exert a large gripping force, which can easily cause the user's fingers to fatigue, especially in the case of long-term or frequent use, this fatigue will be more obvious. In addition, for some users with weak hand strength, such as the elderly or disabled people, it may be very difficult or even impossible to operate this traditional clamping device. This direct driving method also limits the size of the clamping force, making it difficult to effectively clamp objects of different sizes and hardness.

[0004] Therefore, it is necessary to further improve and perfect the prior art to overcome these shortcomings, and the utility model is made based on this situation. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at overcoming the shortcomings of the prior art and providing a more labor-saving and comfortable clamping device.

[0006] The utility model is implemented by the following technical solutions:

[0007] To solve the above technical problems, the utility model provides a labor-saving clamping device, which comprises a gun shell body, an extension pipe is arranged on the gun shell body, an openable and closable clamp head assembly is connected to the outer end of the extension pipe, a driving assembly for driving the clamp head assembly to open and close is arranged in the gun shell body, the driving assembly comprises a sliding block slidingly connected in the gun shell body and a pulley set connected with the sliding block, a pulling rope is connected between the pulley set and the clamp head assembly, a trigger is movably connected to the gun shell body, the trigger is connected with the sliding block through a transmission structure, and is used for driving the sliding block to slide and finally drive the pulling rope.

[0008] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of labour-saving holder, pulley block includes fixedly connected on the fixed shaft of gun shell body, and movably connected in the movable shaft of gun shell body, at least one fixed pulley is rotatably connected on the fixed shaft, at least one movable pulley is rotatably connected on the movable shaft, sliding block, fixed pulley and movable pulley are equipped with rope between, one end of the rope is connected on sliding block, the other end of the rope is sequentially passed fixed pulley and movable pulley and is connected with fixed shaft, the inner end of the pull rope is connected with movable shaft.

[0009] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of labour-saving holder, first swing frame is rotatably connected on the fixed shaft, and the end of the rope is connected on first swing frame.

[0010] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of labour-saving holder, second swing frame is rotatably connected on the movable shaft, and the inner end of the pull rope is connected with second swing frame.

[0011] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of labour-saving holder, first sliding groove is arranged along the length direction of extension pipe in the gun shell body, and the movable shaft is slidably connected in first sliding groove.

[0012] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of labour-saving holder, second sliding groove is arranged towards fixed pulley in the gun shell body, and the sliding block is slidably connected in second sliding groove.

[0013] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of labour-saving holder, and the transmission structure adopts inclined plane type transmission structure.

[0014] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of labour-saving holder, trigger is slidably connected in gun shell body and projects from gun shell body, and the inclined plane type transmission structure includes drive bevel arranged on trigger, and top pressure head arranged on sliding block and extending to drive bevel;When user presses trigger, drive bevel is pressed inwards top pressure head with the sliding of trigger, to drive sliding block to move in the direction away from pulley assembly, finally drives the action of chuck assembly.

[0015] In order to further solve the technical problems to be solved by the utility model, the utility model provides a kind of labour-saving holder, and the end of top pressure head is equipped with chamfer that can be mutually matched with drive bevel.

[0016] In order to further solve the technical problems to be solved by the utility model, the utility model provides a labor-saving clamp in which the clamp head assembly comprises two clamping jaws rotatably connected to the end of the extension pipe, the inner ends of the two clamping jaws are rotatably connected to the same connecting rod, the connecting rod is connected to the outer end of the pulling rope, and the elastic reset member is arranged between the connecting rod and the extension pipe and presses the connecting rod in the direction of opening of the clamping jaws.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] The labor-saving clamp realizes force amplification through the pulley block, so that the user only needs to exert a small force to clamp the target object. The fixed pulley changes the direction of the force, and the movable pulley decomposes the force, so that the labor-saving effect is achieved. This design makes the clamping force larger under the same force, and the structure is compact, and the arrangement of various components is more reasonable. BRIEF DESCRIPTION OF DRAWINGS

[0019] The specific embodiments of the utility model will be further described in detail below in combination with the drawings, in which:

[0020] Figure 1 is the three-dimensional structure schematic view of the utility model;

[0021] Figure 2 is the sectional view of the clamp head assembly;

[0022] Figure 3 is the exploded schematic view of the driving assembly;

[0023] Figure 4 is the sectional schematic view of the utility model;

[0024] Figure 5 is the exploded schematic view of the pulley block;

[0025] Figure 6 is the use state schematic view of the utility model. DETAILED DESCRIPTION

[0026] In order to make the person skilled in the art better understand the technical scheme of the utility model, the utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0027] As Figures 1 to 6 shown, the labor-saving clamp of the utility model is gun-shaped as a whole and mainly comprises a gun shell body 1, an extension pipe 2, a clamp head assembly 3 and a driving assembly 4.

[0028] The gun shell 1 constitutes the main body frame of the holder, which is similar to a pistol in shape and has a holding part and a gun body part. The holding part is designed ergonomically to facilitate comfortable holding by the user. The gun body part is connected with the extension tube 2. The extension tube 2 extends from the front end of the gun shell 1, and the length of the extension tube 2 can be adjusted according to actual needs. The chuck assembly 3 is located at the end of the extension tube 2 and is used to hold the target object. In this embodiment, the chuck assembly 3 includes two clamping jaws 31, which are respectively fixed to the end of the extension tube 2 by means of rotary connection. The inner ends of the two clamping jaws 31 are rotatably connected to the same connecting rod 32. The connecting rod 32 is connected with the outer end of the pulling rope 43. The elastic reset member 33 (for example, a spring) is arranged between the connecting rod 32 and the extension tube 2, and functions to keep the clamping jaws 31 in an open state in the absence of external force, so as to facilitate the clamping of the target object.

[0029] The core of the utility model lies in the design of the driving assembly 4, which ingeniously integrates the sliding block 41, the pulley set 42 and the trigger 44, and realizes the function of labor-saving clamping. The driving assembly 4 mainly includes the sliding block 41 slidingly connected inside the gun shell 1 and the pulley set 42 connected with the sliding block 41. The pulley set 42 is connected with the chuck assembly 3 through the pulling rope 43, so as to transmit the driving force to the clamping jaw. The trigger 44 movably connected on the gun shell 1 is connected with the sliding block 41 through a transmission structure, and is used to drive the sliding of the sliding block 41, thereby driving the pulling rope 43, and finally realizing the clamping action.

[0030] More specifically, the pulley set 42 includes the fixed shaft 421 fixedly connected on the gun shell 1 and the movable shaft 422 movably connected on the gun shell 1. At least one fixed pulley 423 is rotatably connected on the fixed shaft 421, and at least one movable pulley 424 is rotatably connected on the movable shaft 422. The sliding block 41, the fixed pulley 423 and the movable pulley 424 are connected with each other through the rope 425. One end of the rope 425 is connected on the sliding block 41, and the other end is connected to the first swing bracket 426 on the fixed shaft 421 after being wound around the fixed pulley 423 and the movable pulley 424 in sequence. The inner end of the pulling rope 43 is connected to the second swing bracket 427 on the movable shaft 422, thereby constituting a complete pulley system.

[0031] Among them, the first swing bracket 426 is rotatably connected on the fixed shaft 421, and the second swing bracket 427 is rotatably connected on the movable shaft 422. The first swing bracket 426 and the second swing bracket 427 are both provided with buckles capable of quickly clamping the rope, and the length and tension of the rope can be adjusted according to needs. By adjusting the fixed position of the rope 425 on the first swing bracket 426, the mechanical properties of the pulley set can be fine-tuned. Similarly, by adjusting the fixed position of the pulling rope 43 on the second swing bracket 427, the response speed and sensitivity of the holder can be fine-tuned.

[0032] The utility model discloses a pulley block 42's design, its purpose is to reduce the force required for user to press trigger 44.Definite pulley 423 is mainly used for changing the direction of force, and movable pulley 424 is used for decomposing the force, thereby reach the effect of saving the force.The combination of definite pulley 423 and movable pulley 424 not only realizes the saving of the force, but also makes under the same force can produce greater clamping force.In addition, this design is also favorable to optimizing the layout of parts, make the whole structure more compact (pulley block is located the holding portion of gun shell body 1, with the gun body portion).

[0033] In order to guide the movement of movable shaft 422 and ensure that it moves along the predetermined track, the first sliding groove 11 is arranged in the length direction of the extension pipe 2 in the interior of the gun shell body 1, and the movable shaft 422 is slidably connected in the first sliding groove 11.Similarly, in order to guide the movement of the sliding block 41, the second sliding groove 12 is also arranged in the interior of the gun shell body 1 towards the definite pulley 423, and the sliding block 41 is slidably connected in the second sliding groove 12.

[0034] The transmission structure of the utility model adopts the inclined plane type transmission structure.The trigger 44 is slidably connected in the gun shell body 1, and protrudes out of the gun shell body 1, so as to facilitate the user to operate.The inclined plane type transmission structure specifically includes the driving inclined plane 441 arranged on the trigger 44, and the top pressing head 411 arranged on the sliding block 41 and extending to the driving inclined plane 441.When the user presses the trigger 44, the driving inclined plane 441 is pressed to the top pressing head 411 inwards along with the sliding of the trigger 44, thereby driving the sliding block 41 to move along the second sliding groove 12 in the direction away from the pulley block 42.The movement of the sliding block 41 finally drives the pulling rope 43 and the chuck assembly 3 through the pulley block, and realizes the clamping action.In order to improve the transmission efficiency and smoothness, the end of the top pressing head 411 is provided with the chamfer 412 matched with the driving inclined plane 441.

[0035] In addition, in the embodiment, the trigger 44 is designed into a block shape, the volume is relatively large, the height is about ninetenths of the height of the holding portion, and protrudes from the front side of the holding portion of the gun shell body 1.This design conforms to the ergonomic principle, so that the user is more comfortable when pressing the trigger, and reduces finger fatigue.

Claims

1. An easy effort gripper characterized by: The application relates to a gun shell (1) which is provided with an extension tube (2) extending on the gun shell (1), the outer end of the extension tube (2) is connected with an openable and closable chuck assembly (3), the gun shell (1) is provided with a driving assembly (4) for driving the chuck assembly (3) to open and close, the driving assembly (4) comprises a sliding block (41) slidingly connected in the gun shell (1) and a pulley set (42) connected with the sliding block (41), a pulling rope (43) is connected between the pulley set (42) and the chuck assembly (3), a trigger (44) is movably connected on the gun shell (1), the trigger (44) is connected with the sliding block (41) through a transmission structure, and is used for driving the sliding block (41) to slide and finally drive the pulling rope (43).

2. A labor saving holder according to claim 1, wherein: The pulley set (42) comprises a fixed shaft (421) fixedly connected on the gun shell (1) and a movable shaft (422) movably connected on the gun shell (1), at least one fixed pulley (423) is rotatably connected on the fixed shaft (421), at least one movable pulley (424) is rotatably connected on the movable shaft (422), a rope (425) is arranged between the sliding block (41), the fixed pulley (423) and the movable pulley (424), one end of the rope (425) is connected on the sliding block (41), the other end of the rope (425) is sequentially wound around the fixed pulley (423) and the movable pulley (424) and then connected with the fixed shaft (421), and the inner end of the pulling rope (43) is connected with the movable shaft (422).

3. A labor saving holder according to claim 2, wherein: The fixed shaft (421) is rotatably connected with a first swing frame (426), and the end of the rope (425) is connected on the first swing frame (426).

4. The labor saving holder according to claim 2, wherein: The movable shaft (422) is rotatably connected with a second swing frame (427), and the inner end of the pulling rope (43) is connected with the second swing frame (427).

5. The labor saving holder according to claim 2, wherein: The gun shell (1) is provided with a first sliding groove (11) arranged along the length direction of the extension tube (2), and the movable shaft (422) is slidingly connected in the first sliding groove (11).

6. The labor saving gripper of claim 1, wherein: The gun shell (1) is provided with a second sliding groove (12) facing the fixed pulley (423), and the sliding block (41) is slidingly connected in the second sliding groove (12).

7. The labor saving gripper of claim 1, wherein: The transmission structure adopts an inclined surface type transmission structure.

8. A labor saving holder according to claim 7, wherein: The trigger (44) is slidingly connected in the gun shell (1) and protrudes out of the gun shell (1), the inclined surface type transmission structure comprises a driving inclined surface (441) arranged on the trigger (44) and a pressing head (411) arranged on the sliding block (41) and extending to the driving inclined surface (441); when a user presses the trigger (44), the driving inclined surface (441) presses the pressing head (411) inward along with the sliding of the trigger (44), so as to drive the sliding block (41) to move in the direction away from the pulley set (42) and finally drive the action of the chuck assembly (3).

9. A labor saving holder according to claim 8, wherein: The end of the pressing head (411) is provided with a chamfer (412) capable of cooperating with the driving inclined surface (441).

10. The labor saving gripper of claim 1, wherein: The chuck assembly (3) comprises two clamping jaws (31) rotatably connected to the ends of the extension tube (2), the inner ends of the two clamping jaws (31) are rotatably connected to the same connecting rod (32), the connecting rod (32) is connected to the outer end of the pulling rope (43), and the elastic reset member (33) is arranged between the connecting rod (32) and the extension tube (2) to press the connecting rod (32) in the direction of opening of the clamping jaws (31).

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