A handheld clamping device

Abstract

The application relates to the technical field of clamping devices, in particular to a handheld clamping device which comprises a handle base, a mounting seat is installed on the handle base, a clamping assembly is connected to the mounting seat, the clamping assembly comprises a second guide rail installed on the mounting seat, a movable block is slidingly installed on the second guide rail, a control button is slidingly installed on the handle base, the control button is connected to the movable block, a first connecting frame is hinged to the movable block, a second connecting frame is rotatably installed on the mounting seat, the first connecting frame is hinged to the second connecting frame, a movable head for clamping an article is hinged to the second connecting frame, and a third connecting frame for controlling the movement direction of the movable head is installed on the mounting seat. The application has the effect of improving the convenience of the handheld clamping device during operation.

Description

Technical Field

[0001] This application relates to the field of clamping equipment technology, and in particular to a handheld clamping device. Background Technology

[0002] Handheld grippers are commonly used tools in various scenarios such as industrial production, scientific research experiments, and medical procedures. They are mainly used to grasp, hold, or move various items. Common handheld gripping mechanisms generally adopt a scissor-type structure, which typically uses the opening and closing of fingers to drive two gripping arms to clamp items.

[0003] However, the scissor-type structure has obvious limitations in operation: on the one hand, its clamping action relies on the large opening and closing of the fingers, resulting in poor operational flexibility, especially when fine adjustments are needed for the object or when working in a confined space, it is difficult to accurately control the clamping position and force; on the other hand, when used for a long time, the fingers need to maintain a continuous opening and closing force state, which can easily lead to hand muscle fatigue, put a great burden on the operator's hands, especially the fingers, and may even cause finger joint damage, making it unable to meet the needs of long-term, high-frequency clamping operations.

[0004] In summary, existing clamping mechanisms suffer from inconvenient operation, heavy hand burden, and easy finger injury. There is an urgent need for a handheld clamping device that can improve ease of operation and reduce hand burden. Utility Model Content

[0005] To improve the convenience of handheld clamping devices during operation, this application provides a handheld clamping device.

[0006] This application provides a handheld clamping device, which adopts the following technical solution: A handheld clamping device includes a handle base, a mounting seat mounted on the handle base, a clamping assembly connected to the mounting seat, the clamping assembly including a second guide rail mounted on the mounting seat, a movable block slidably mounted on the second guide rail, a control button slidably mounted on the handle base, the control button being connected to the movable block, a first connecting frame hinged to the movable block, a second connecting frame rotatably mounted on the mounting seat, the first connecting frame being hinged to the second connecting frame, a movable head for clamping an object hinged to the second connecting frame, and a third connecting frame for controlling the movement direction of the movable head mounted on the mounting seat.

[0007] By adopting the above technical solution, the operator can drive the movable block to slide along the second guide rail by pressing the control button. The movable block drives the first connecting frame to move, which in turn pushes the second connecting frame to rotate on the mounting base, ultimately achieving the clamping action of the movable head. At the same time, the third connecting frame can constrain the movement direction of the movable head, ensuring stable and precise clamping. The entire operation only requires pressing the control button with a finger, without the need for large opening and closing movements, significantly improving the convenience of operation, while reducing the force burden on hand muscles and avoiding hand fatigue and injury caused by prolonged operation.

[0008] In one specific implementation, a first fixed rod is mounted on the mounting base, and the second connecting frame is composed of a short boom and a long boom connected together. The intersection of the short boom and the long boom is rotatably connected to the first fixed rod. The short boom is hinged to the first connecting frame, and the long boom is hinged to the movable head. A second fixed rod is mounted on the mounting base, and a third connecting frame is rotatably mounted on the second fixed rod. The end of the third connecting frame away from the second fixed rod is hinged to the movable head, and the third connecting frame is arranged parallel to the long boom.

[0009] By adopting the above technical solution, the second connecting frame uses a combination structure of a short arm and a long arm, and achieves rotational support through the first fixed rod, forming a lever structure. This allows the small-amplitude movement of the first connecting frame to be transmitted to the long arm through the short arm, driving the movable head to achieve a larger clamping opening and closing range, improving the clamping range and efficiency. At the same time, the third connecting frame is set parallel to the long arm, and the two, together with the movable head and the mounting base, form a parallelogram structure, ensuring that the movable head maintains a stable posture during movement, such as keeping the clamping plates parallel, avoiding the item from shifting or falling off during clamping, and further improving clamping stability and accuracy.

[0010] In one specific implementation, a first guide rail is mounted on the handle base, and the control button is slidably mounted on the first guide rail, the control button having an arc-shaped surface.

[0011] By adopting the above technical solution, the first guide rail provides a sliding guide for the control button, ensuring that the control button moves only in a fixed direction, avoiding deviation or jamming during pressing, and improving the smoothness of operation; the arc surface of the control button can fit the arc contour of the operator's finger, increasing the contact area between the finger and the control button, dispersing the pressing pressure, reducing the local force concentration on the finger, further reducing the burden on the hand and improving the grip comfort.

[0012] In one specific implementation, the arc-shaped surface of the control button is provided with anti-slip texture.

[0013] By adopting the above technical solution, the anti-slip texture can increase the friction between the finger and the curved surface of the control button. Especially when the hands are sweaty or the operating environment is humid, it can effectively prevent the finger from sliding relative to the control button, ensure that the operator can apply force stably, improve the reliability of operation, and prevent the clamping action from being delayed or out of control due to slippage.

[0014] In one specific implementation, the end of the handle base away from the mounting base is the head, the portion between the head and the mounting base is the grip portion of the handle base, and the handle base between the head and the mounting base is inclined.

[0015] By adopting the above technical solution, the tilted handle base gripping part allows the operator's hand to bend naturally, which conforms to ergonomic design and avoids muscle tension caused by keeping the hand in a straight or overly bent posture for a long time. At the same time, the tilt angle makes the clamping direction of the movable head closer to the operator's line of sight, making it easier for the operator to observe the clamping part and improve the accuracy of operation, especially suitable for fine clamping operation scenarios.

[0016] In one specific implementation, a mounting slot is provided on the handle base, and a protective sleeve is installed at the mounting slot position on the handle base.

[0017] By adopting the above technical solution, the mounting slot provides installation space for the protective sleeve, which can directly contact the operator's palm. Its material, such as rubber, has good elasticity and softness, which can buffer the hard contact between the hand and the handle base and improve the grip comfort. At the same time, the protective sleeve can also increase the friction between the palm and the handle base, preventing the device from slipping from the hand during operation and further improving the safety of use.

[0018] In one specific implementation, a mounting plate is mounted on the mounting base, the mounting plate has mounting holes, and a camera is mounted on the mounting plate.

[0019] By adopting the above technical solution, the camera moves synchronously with the clamping component. When the movable head clamps the object and moves, the camera can adjust its position synchronously with the object's perspective. It can capture the clamping state of the object in real time and also observe the surface features of the object and the surrounding environment. It is suitable for scenarios that require synchronous monitoring of the clamping process, such as precision parts assembly and the transfer of small objects.

[0020] In one specific implementation, a baffle is mounted on the mounting base, a pressure head is mounted on the movable block, and a first spring is mounted on the pressure head, with the end of the first spring away from the pressure head connected to the baffle.

[0021] By adopting the above technical solution, the first spring provides elastic support to the pressure head in its natural state, keeping the movable block and control button in their initial positions, i.e., the movable head is in the open state. When the control button is pressed, the movable block drives the pressure head to compress the first spring, and the first spring generates a reverse elastic force. After the control button is released, the elastic force of the first spring can push the pressure head and movable block to automatically reset, thereby driving the movable head to open, realizing the automatic operation of pressing, clamping, releasing, and resetting without the need for manual adjustment of the movable head reset, significantly improving the convenience of operation. At the same time, the first spring can also buffer the sliding impact force of the movable block, reduce rigid collisions between components, and extend the service life of the device.

[0022] In one specific implementation, a limiting component for restricting the displacement distance of the movable block is connected to the baffle. The limiting component includes a fixed plate mounted on the baffle, a slider slidably mounted on the fixed plate, and a second spring mounted on the fixed plate. One end of the second spring is connected to the fixed plate, and the other end is connected to the slider. A limiting plate is hinged to the fixed plate, the limiting plate is inclined, and a pressure strip is mounted on the limiting plate. A limiting groove for accommodating the pressure strip is formed on the pressure head, and a pull plate for controlling the rotation of the limiting plate is connected to the slider.

[0023] By adopting the above technical solution, when the movable block drives the pressure head to move towards the baffle during the clamping action, if the displacement of the movable block is too large, the pressure head will first contact the slider and push the slider to compress the second spring. During the movement of the slider, the pull plate drives the limiting plate to rotate around the hinge point of the fixed plate, so that the pressure strip on the limiting plate is engaged in the limiting groove of the pressure head. The cooperation between the pressure strip and the limiting groove restricts the pressure head from continuing to move, thereby controlling the maximum displacement of the movable block. This structure can effectively avoid the first spring from being compressed to its limit and damaged due to excessive pressing, and at the same time prevent the clamping plate of the movable head from being deformed or damaged due to excessive squeezing, thus extending the service life of the core components of the device. In addition, the pressure strip is made of rubber, which can buffer the collision between the pressure head and the limiting plate during the limiting process and reduce wear.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. Improved ease of operation: Through the cooperation of control buttons and linkage structure, clamping action can be achieved simply by pressing with a finger, without the need for large finger opening and closing, making operation flexible; and the first spring achieves automatic reset, eliminating the need for manual adjustment, further improving operating efficiency.

[0025] 2. Reduced hand strain: The combination of curved control buttons, anti-slip texture, tilted handle base and rubber sleeve is ergonomic, distributes hand pressure, reduces muscle fatigue and avoids finger injuries caused by prolonged operation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the clamping device according to an embodiment of this application.

[0027] Figure 2 This is a schematic diagram of the handle base according to an embodiment of this application.

[0028] Figure 3 This is a schematic diagram of the control buttons in an embodiment of this application.

[0029] Figure 4 This is a schematic diagram of the clamping component according to an embodiment of this application.

[0030] Figure 5 This is a schematic diagram of an active block in an embodiment of this application.

[0031] Figure 6 This is a schematic diagram of the limiting component according to an embodiment of this application.

[0032] Figure 7 This is a schematic diagram of the limiting plate according to an embodiment of this application.

[0033] Reference numerals: 1. Handle base; 11. Seat head; 12. Mounting slot; 13. Protective sleeve; 14. First guide rail; 15. Control button; 151. Arc-shaped surface; 152. Anti-slip texture; 2. Mounting seat; 3. Clamping assembly; 31. Second guide rail; 32. Movable block; 33. First connecting frame; 341. First fixing rod; 342. Short arm frame; 343. Long arm frame; 35. Movable head; 351. Clamping plate 361. Second fixing rod; 362. Third connecting frame; 371. Baffle; 372. Pressure head; 3721. Limiting groove; 373. First spring; 4. Mounting plate; 41. Mounting hole; 5. Limiting assembly; 51. Fixing plate; 521. Guide rod; 522. Slider; 523. Second spring; 53. Limiting plate; 531. Slide groove; 532. Pressure strip; 54. Pull plate; 541. Connecting rod. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0035] This application discloses a handheld clamping device, referring to... Figure 1 It includes a handle base 1, a mounting base 2 fixedly connected to the handle base 1, a clamping component 3 installed on the mounting base 2, and a mounting plate 4 fixedly connected to the end of the mounting base 2 away from the handle base 1. The mounting plate 4 has a mounting hole 41, and a camera is installed on the mounting plate 4 at the position of the mounting hole 41.

[0036] By holding the handle base 1, the clamping component 3 is operated to clamp the item. During the movement of the clamped item, the camera on the mounting plate 4 can follow the viewpoint of the item, thus facilitating stable multi-mimicry data collection of the item.

[0037] Reference Figure 1 and Figure 2 The end of the handle base 1 away from the mounting base 2 is the head 11. The part between the head 11 and the mounting base 2 is the grip part of the handle base 1. The handle base 1 between the head 11 and the mounting base 2 is inclined. The handle base 1 has a mounting groove 12. A protective sleeve 13 is fixedly installed on the handle base 1 at the mounting groove 12. The protective sleeve 13 is made of rubber.

[0038] Reference Figure 2 and Figure 3 A first guide rail 14 is fixedly installed on the inner bottom wall of the handle base 1. A control button 15 is slidably installed on the first guide rail 14. The control button 15 has an arc-shaped surface 151, which is the grip surface for the user's fingers. The arc-shaped surface 151 of the control button 15 has anti-slip texture 152.

[0039] Reference Figure 3 , Figure 5 and Figure 6 The clamping assembly 3 includes a second guide rail 31, which is fixedly mounted on the mounting base 2. A movable block 32 is slidably mounted on the second guide rail 31, and the bottom surface of the movable block 32 is fixedly connected to the control button 15.

[0040] Reference Figure 4 and Figure 5 Two first connecting frames 33 are hinged to the movable block 32, and the first connecting frames 33 are arranged opposite each other on both sides of the movable block 32. A first fixing rod 341 is fixedly installed on the mounting base 2, and a second connecting frame is rotatably installed on the first fixing rod 341. The second connecting frame is divided into a short boom 342 and a long boom 343. The intersection of the short boom 342 and the long boom 343 is connected to the first fixing rod 341, and an obtuse angle is formed between the short boom 342 and the long boom 343. The end of the first connecting frame 33 away from the movable block 32 is hinged to the short boom 342. A movable head 35 is hinged to the end of the long boom 343 away from the first fixing rod 341, and a clamping piece 351 is fixedly installed on the movable head 35. A second fixing rod 361 is fixedly installed on the mounting base 2. A third connecting frame 362 is rotatably installed on the second fixing rod 361. The third connecting frame 362 is arranged parallel to the long arm frame 343. The end of the third connecting frame 362 away from the second fixing rod 361 is also hinged to the movable head 35.

[0041] A baffle 371 is fixedly installed on the mounting base 2, a pressure head 372 is fixedly installed on the movable block 32, a first spring 373 is fixedly installed on the pressure head 372, and the end of the first spring 373 away from the pressure head 372 is fixedly connected to the baffle 371.

[0042] When it is necessary to clamp an item, press the control button 15 inside the handle base 1. The control button 15 will drive the movable block 32 to slide on the second guide rail 31. The movable block 32 will pull the first connecting frame 33 to move. The first connecting frame 33 will pull the short arm frame 342 and the long arm frame 343 to rotate on the first fixed rod 341. When the long arm frame 343 rotates, it will push the movable head 35 to move. The movement direction of the movable head 35 will be controlled by the swing of the third connecting frame 362, so that the movable head 35 can drive the clamping plate 351 to quickly clamp the item.

[0043] Reference Figure 6 and Figure 7 A limiting component 5, which restricts the displacement distance of the movable block 32, is connected to the baffle 371. The limiting component 5 includes a fixed plate 51, which is fixedly installed on the baffle 371. A guide rod 521 is fixedly installed on the fixed plate 51, and a slider 522 is slidably installed on the guide rod 521. A second spring 523 is sleeved on the guide rod 521. One end of the second spring 523 is fixedly connected to the slider 522, and the other end is fixedly connected to the fixed plate 51. A limiting plate 53 is hinged to the fixed plate 51. A sliding groove 531 is provided on the limiting plate 53. The sliding groove 531 is a T-shaped groove. A pull plate 54 is fixedly connected to the slider 522. A connecting rod 541 is fixedly installed on the pull plate 54. The connecting rod 541 extends into the sliding groove 531 on the limiting plate 53 and is slidably connected to the limiting plate 53. The limiting plate 53 is inclined, and the end of the limiting plate 53 away from the fixed plate 51 is biased towards the pressure head 372. A pressure strip 532 is fixedly installed on the limiting plate 53, and a limiting groove 3721 for accommodating the pressure strip 532 is provided on the side wall of the pressure head 372. The pressure strip 532 is made of rubber.

[0044] When the movable block 32 moves the pressure head 372 closer to the baffle 371, the pressure head 372 presses the first spring 373. When there is no object to be clamped between the two clamping plates 351, the two clamping plates 351 will contact each other. Just before the two clamping plates 351 are about to contact, the pressure head 372 will first contact the slider 522, and the pressure head 372 will push the slider 522 to slide on the guide rod 521. The slider 522 will drive the pull plate 54 to move, and the pull plate 54 will drive the connecting rod 541 to slide on the limiting plate 53 and push the limiting plate 53 to rotate. The end of the mounting strip 532 of the limiting plate 53 extends into the limiting groove 3721. When the clamping pieces 351 abut against each other, the strip 532 also clamps the pressure head 372 and, together with the limiting plate 53, abuts against the vertical side wall of the limiting groove 3721. This limits the displacement of the movable block 32, preventing the movable block 32 from displacing excessively and pressing the first spring 373 under strong pressure. This enhances the service life of the first spring 373 and also prevents excessive squeezing between the clamping pieces 351, which could cause deformation of the clamping pieces 351 and each connecting frame.

[0045] The implementation principle of this application embodiment is as follows: The operator holds the handle base 1 and presses the control button 15 with his finger. The control button 15 slides along the first guide rail 14 toward the baffle 371, simultaneously driving the movable block 32 to slide along the second guide rail 31. The movable block 32 pulls the first connecting frame 33 to move, and the first connecting frame 33 pushes the short arm frame 342 to rotate around the first fixed rod 341, thereby driving the long arm frame 343 to rotate. The long arm frame 343 pushes the movable head 35 to move toward the object, while the third connecting frame 362 rotates around the second fixed rod 361 to ensure that the movable head 35 maintains a horizontal posture, and finally the clamping plate 351 clamps the object. During this process, the movable block 32 drives the pressure head 372 to compress the first spring 373 and store the reset elastic force.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A handheld clamping device, characterized in that: The device includes a handle base (1), on which a mounting base (2) is installed. A clamping assembly (3) is connected to the mounting base (2). The clamping assembly (3) includes a second guide rail (31) mounted on the mounting base (2). A movable block (32) is slidably mounted on the second guide rail (31). A control button (15) is slidably mounted on the handle base (1). The control button (15) is connected to the movable block (32). A first connecting frame (33) is hinged on the movable block (32). A second connecting frame is rotatably mounted on the mounting base (2). The first connecting frame (33) is hinged to the second connecting frame. A movable head (35) for clamping an item is hinged on the second connecting frame. A third connecting frame (362) for controlling the movement direction of the movable head (35) is mounted on the mounting base (2).

2. The handheld clamping device according to claim 1, characterized in that: The mounting base (2) is equipped with a first fixed rod (341). The second connecting frame is composed of a short boom (342) and a long boom (343). The intersection of the short boom (342) and the long boom (343) is rotatably connected to the first fixed rod (341). The short boom (342) is hinged to the first connecting frame (33), and the long boom (343) is hinged to the movable head (35). The mounting base (2) is equipped with a second fixed rod (361). The third connecting frame (362) is rotatably mounted on the second fixed rod (361). The end of the third connecting frame (362) away from the second fixed rod (361) is hinged to the movable head (35). The third connecting frame (362) is arranged parallel to the long boom (343).

3. The handheld clamping device according to claim 1, characterized in that: The handle base (1) is equipped with a first guide rail (14), and the control button (15) is slidably mounted on the first guide rail (14). The control button (15) has an arc-shaped surface (151).

4. A handheld clamping device according to claim 3, characterized in that: The control button (15) has anti-slip texture (152) on its arc-shaped surface (151).

5. A handheld clamping device according to claim 1, characterized in that: The end of the handle base (1) away from the mounting base (2) is the head (11), and the part between the head (11) and the mounting base (2) is the gripping part of the handle base (1). The handle base (1) between the head (11) and the mounting base (2) is inclined.

6. A handheld clamping device according to claim 1, characterized in that: The handle base (1) has an installation groove (12), and a protective sleeve (13) is installed at the installation groove (12) position on the handle base (1).

7. A handheld clamping device according to claim 1, characterized in that: The mounting base (2) is equipped with a mounting plate (4), the mounting plate (4) has a mounting hole (41), and a camera is mounted on the mounting plate (4).

8. A handheld clamping device according to claim 1, characterized in that: A baffle (371) is installed on the mounting base (2), a pressure head (372) is installed on the movable block (32), a first spring (373) is installed on the pressure head (372), and the end of the first spring (373) away from the pressure head (372) is connected to the baffle (371).

9. A handheld clamping device according to claim 8, characterized in that: The baffle (371) is connected to a limiting component (5) that limits the displacement distance of the movable block (32). The limiting component (5) includes a fixed plate (51), which is mounted on the baffle (371). A slider (522) is slidably mounted on the fixed plate (51). A second spring (523) is mounted on the fixed plate (51). One end of the second spring (523) is connected to the fixed plate (51), and the other end is connected to the slider (522). A limiting plate (53) is hinged on the fixed plate (51). The limiting plate (53) is inclined. A pressure strip (532) is mounted on the limiting plate (53). A limiting groove (3721) for accommodating the pressure strip (532) is opened on the pressure head (372). A pull plate (54) for controlling the rotation of the limiting plate (53) is connected to the slider (522).

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