Tube withdrawal forceps

Abstract

The utility model discloses a kind of tube pulling forceps, including forceps body, the one side of forceps body is equipped with tube pulling assembly;The tube pulling assembly includes fixed base, fixed base is rotatably installed with pressing plate, the one end of pressing plate facing trachea is rotatably installed with carousel, and it is equipped with the avoidance groove for avoiding trachea on the carousel;The number of avoidance groove is multiple, by the rotation of carousel, to select the avoidance groove needed, to make the tube pulling forceps can pull down different diameter trachea from quick connector. As described above, when the jaw is stuck on trachea, press the one end of pressing plate with hand, trachea can be pulled out from quick connector, so that the device can realize single-handed tube pulling to improve tube pulling efficiency, while rotating carousel, selecting suitable avoidance groove to be sleeved on trachea outside makes the device can pull out different diameter trachea. To improve the application ability of the device.

Description

Technical Field

[0001] This utility model relates to the field of pipe dismantling equipment technology, specifically a pipe pulling pliers. Background Technology

[0002] Pneumatic hose connectors are key components in pneumatic systems for connecting pipes. They feature quick connection and disconnection and are suitable for transmitting compressed air or water. Therefore, quick-connect hoses are commonly used in automated equipment. While the hose can be pulled out by pressing the release mechanism, pulling it out with one hand requires nibbling, which can be dangerous and inefficient, especially given the large number of quick-connects in automated equipment, thus impacting maintenance efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a pipe puller to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tube-pulling pliers, comprising a pliers body, one side of which is provided with a tube-pulling assembly; the tube-pulling assembly includes a fixed base, a pressure plate rotatably mounted on the fixed base, and a turntable rotatably mounted on the end of the pressure plate facing the trachea, and the turntable is provided with a clearance groove for avoiding the trachea; the number of clearance grooves is multiple, and by rotating the turntable, the required clearance groove can be selected, so that the tube-pulling pliers can pull out tracheas of different diameters from the quick connector.

[0005] As a preferred technical solution of this utility model: the fixed seat is connected to the second shaft pin seat provided on the pressure plate by a first shaft pin seat, so as to realize the rotation of the pressure plate on the fixed seat.

[0006] As a preferred technical solution of this utility model: the tube pulling assembly further includes an extension rod, one end of which is connected to the pressure plate.

[0007] As a preferred technical solution of this utility model: the extension rod is connected to the sixth shaft pin seat provided on the fixed seat through the provided third shaft pin seat; the extension rod is also provided with a fourth shaft pin seat; wherein, the fourth shaft pin seat is sleeved outside the fifth shaft pin seat provided on the pressure plate, and the fourth shaft pin seat is connected to the fifth shaft pin seat.

[0008] As a preferred embodiment of this utility model, a first spring is further provided between the facing surfaces of the fixed base and the pressure plate.

[0009] As a preferred technical solution of this utility model: the pressure plate is further provided with a connecting member, and the turntable rotates along the connecting member, and the turntable is pressed against the pressure plate by a second spring.

[0010] As a preferred technical solution of this utility model: the side of the turntable facing the pressure plate is also provided with a limiting protrusion, and the pressure plate is also provided with a limiting groove that matches the limiting protrusion.

[0011] As a preferred technical solution of this utility model: the clamp body includes a first clamp arm and a second clamp arm, and the opening angle of the clamp jaws is adjusted by an adjustment assembly.

[0012] As a preferred technical solution of this utility model: the adjustment assembly includes a fixing plate, the fixing plate is provided with a pin, and the pin is slid along a groove provided on the fixing plate by a knob, and one end of the pin after passing through the groove is located between the first clamp arm and the second clamp arm.

[0013] As a preferred technical solution of this utility model: a first slot, a second slot and a third slot are provided between the facing surfaces of the first clamp arm and the second clamp arm, and the gap between the first slot, the second slot and the third slot gradually decreases, and the opening angle of the jaws is adjusted by sliding the pin between the first slot, the second slot and the third slot.

[0014] The beneficial effects of this utility model by adopting the above technical solution are as follows: when the jaws are clamped on the trachea, the trachea can be pulled out from the quick connector by pressing one end of the pressure plate with your hand. Therefore, the device can achieve single-handed tube pulling to improve tube pulling efficiency. At the same time, rotating the turntable and selecting a suitable clearance groove outside the trachea allows the device to pull out tracheas of different diameters. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is an exploded view of the main structure of this utility model; Figure 3 This is a schematic diagram of the main structure of the tube-pulling assembly of this utility model; Figure 4 This is a schematic diagram of one side of the structure after the tube is removed from the assembly of this utility model; Figure 5 This is a schematic diagram of the other side of the structure after the tube is disassembled in this utility model; Figure 6 This is a schematic diagram of one side of the structure after the total component of this utility model has been adjusted and decomposed; Figure 7 This is a schematic diagram of the other side of the structure after the total component of this utility model has been adjusted and decomposed; Figure 8 This is a partially enlarged schematic diagram of the adjustment assembly of this utility model after it has been cut open on the clamp body; Figure 9 This is a partially enlarged schematic diagram of the clamp body of this utility model.

[0016] In the diagram: 1. Clamp body; 10. First clamp arm; 11. Second clamp arm; 12. First slot; 13. Second slot; 14. Third slot; 2. Tube pulling assembly; 20. Fixing base; 21. Pressure plate; 22. Extension rod; 23. Turntable; 24. First shaft pin seat; 25. Second shaft pin seat; 26. Third shaft pin seat; 27. Fourth shaft pin seat; 28. Fifth shaft pin seat; 29. ​​Sixth shaft pin seat; 210. 211. Clearance groove; 212. First spring; 213. Connector; 214. Second spring; 215. Pin; 216. Limiting protrusion; 217. Limiting groove; 3. Adjustment assembly; 30. Fixing plate; 31. Locking pin; 32. Third spring; 33. Steel ball; 34. Connecting pipe; 35. Knob; 36. Slide groove; 37. Pin; 38. Ball groove; 39. Mounting hole; 310. Drive groove; 4. Spindle. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model.

[0018] Please see Figure 1-9This utility model provides an embodiment of a tube-pulling pliers, comprising a pliers body 1, with a tube-pulling assembly 2 on one side of the pliers body 1. The tube-pulling assembly 2 includes a fixed base 20, on which a pressure plate 21 is rotatably mounted. A turntable 23 is rotatably mounted on the end of the pressure plate 21 facing the trachea, and the turntable 23 has a clearance groove 210 for avoiding the trachea. There are multiple clearance grooves 210. By rotating the turntable 23, the desired clearance groove 210 can be selected, allowing the tube-pulling pliers to pull out tracheas of different diameters from the quick connector. In summary, when the jaws are engaged with the trachea, pressing one end of the pressure plate 21 by hand allows the trachea to be pulled out of the quick connector, thus enabling single-handed tube pulling to improve efficiency. Simultaneously, rotating the turntable 23 to select a suitable clearance groove 210 to fit over the trachea allows the device to pull out tracheas of different diameters. Preferably, there are three clearance slots 210, and each clearance slot 210 gradually increases in size.

[0019] Furthermore, since the fixed seat 20 is connected to the second shaft pin seat 25 provided on the pressure plate 21 by the first shaft pin seat 24, so that the pressure plate 21 can rotate on the fixed seat 20, the lever principle can be used to make the pressure plate 21 rotate, so that the user can pull out the air tube with less force.

[0020] Furthermore, since the tube removal assembly 3 also includes an extension rod 22, one end of which is connected to the pressure plate 21, the addition of the extension rod 22 makes it easier for the pressure plate 21 to rotate on the fixed base 20, thus making it easier for the device to remove the air tube.

[0021] Specifically, the extension rod 22 is pinned to the sixth pin seat 29 on the fixed base 20 via a third pin seat 26. This allows the extension rod 22 to be stably and reliably positioned on the pressure plate 21 under the action of the fourth pin seat 27 and the third pin seat 26. The extension rod 22 also has a fourth pin seat 27, which is fitted over the fifth pin seat 28 on the pressure plate 21 and is pinned to the fifth pin seat 28. Pulling the pin rod out of the fourth pin seat 27 and the third pin seat 26 facilitates the disassembly of the extension rod 22. Therefore, the extension rod 22 can be installed as needed; for example, it can be added when a large-diameter air tube needs to be pulled out, and not needed when a small-diameter air tube needs to be pulled out. To facilitate the resetting of the pressure plate 21, a first spring 211 is also provided between the opposing surfaces of the fixed base 20 and the pressure plate 21.

[0022] In addition, in order to ensure that the turntable 23 can reliably adhere to the pressure plate 21, the pressure plate 21 is also provided with a connector 212, and the turntable 23 rotates along the connector 212, and the second spring 213 is provided to make the turntable 23 adhere to the pressure plate 21.

[0023] Furthermore, the turntable 23 is provided with a limiting protrusion 215 on the side facing the pressure plate 21, and the pressure plate 21 is also provided with a limiting groove 216 that matches the limiting protrusion 215.

[0024] In summary, when the limiting protrusion 215 is connected to the limiting groove 216, and under the combined action of the second spring 213, the automatic rotation of the turntable 23 can be effectively prevented, thereby ensuring that the clearance groove 210 will not be displaced after adjustment.

[0025] Based on the above scheme, the clamp body 1 includes a first clamp arm 10 and a second clamp arm 11, and the opening angle of the clamp jaws is adjusted by the provided adjustment assembly 3. When the trachea enters the clamp jaws, the user applies force to make the two clamp arms move towards each other. At this time, the intervention of the adjustment assembly 3 is used to avoid the problem of the trachea being pinched or cut due to the complete closure of the clamp jaws.

[0026] Furthermore, since the adjustment assembly 3 includes a fixing plate 30, on which a pin 37 is provided, and a knob 35 is provided to cause the pin 37 to slide along a groove 36 provided on the fixing plate 30, with one end of the pin 37 passing through the groove 36 located between the first clamp arm 10 and the second clamp arm 11. Therefore, the pin 37 can be slid between the two clamp arms by rotating the knob 35, for example, as... Figure 8 As shown, rotating the knob 35 counterclockwise causes the pin 37 to move to the left, minimizing the opening angle of the jaws when the two jaws are closed. Conversely, rotating the knob 35 clockwise moves the pin 37 to the right, gradually increasing the opening angle of the jaws when the two jaws are closed. The upper end of the pin 37 contacts the drive groove 310 on the knob 35 via a frustum; the outer diameter of the frustum contacting the drive groove 310 is larger than the outer diameter of the pin 37, and the frustum is preferably a ball bearing.

[0027] Meanwhile, a first slot 12, a second slot 13, and a third slot 14 are provided between the facing surfaces of the first clamp arm 10 and the second clamp arm 11, and the gap between the first slot 12, the second slot 13, and the third slot 14 gradually decreases. The opening angle of the jaws is adjusted by sliding the pin 37 between the first slot 12, the second slot 13, and the third slot 14. Based on this, rotating the knob 35 causes the pin 37 to enter the corresponding slot, thus facilitating continuous operation on multiple air pipes of the same diameter.

[0028] To ensure that the pin 37 does not move freely in the various slots during continuous operation, a mounting hole 39 is provided on the knob 35, and a locking pin 31 is installed in the mounting hole 39. The locking pin 31 abuts against the ball groove 38 to lock the knob 35. The locking pin 31 includes a connecting tube 34 that is threaded into the mounting hole 39, and a steel ball 33 is installed in the connecting tube 34. When the connecting tube 34 is connected to the mounting hole 39, the third spring 32 in the connecting tube 34 causes the steel ball 33 to abut against the ball groove 38, thus locking the position of the pin 37.

[0029] In addition, the fixing seat 20 is connected to the fixing plate 30 after passing through two oblong holes on the clamp body 1 with pins 214. For example, one end of the pin 214 is fixed to the fixing seat 20 and the other end is riveted to the fixing plate 30. Alternatively, nuts can be used to connect the two ends of the pin 214 to achieve relative fixation between the fixing plate 30 and the fixing seat 20. The main shaft 4 passes through the adjusting assembly 3 and the clamp body 1 and is connected to the fixing seat 20 so that the two clamp arms can rotate along the main shaft 4. At the same time, the adjusting assembly 3 and the tube pulling assembly 2 can be relatively fixed on both sides of the clamp body 1.

[0030] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A pipe puller, characterized in that: Includes clamp body (1), one side of which is provided with tube pulling assembly (2); The tube removal assembly (2) includes a fixed base (20), a pressure plate (21) is rotatably mounted on the fixed base (20), a turntable (23) is rotatably mounted on the end of the pressure plate (21) facing the air tube, and a clearance groove (210) for avoiding the air tube is provided on the turntable (23). The number of clearance slots (210) is multiple. By rotating the turntable (23), the required clearance slot (210) can be selected so that the tube puller can pull out air tubes of different diameters from the quick connector.

2. The tube-pulling wrench according to claim 1, characterized in that: The fixed seat (20) is connected to the second shaft pin seat (25) provided on the pressure plate (21) by a first shaft pin seat (24) so ​​that the pressure plate (21) can rotate on the fixed seat (20).

3. A pipe puller according to claim 2, characterized in that: The tube pulling assembly (2) also includes an extension rod (22), one end of which is connected to the pressure plate (21).

4. A pipe puller according to claim 3, characterized in that: The extension rod (22) is connected to the sixth shaft pin (29) on the fixed seat (20) by a third shaft pin (26); the extension rod (22) is also provided with a fourth shaft pin (27); wherein the fourth shaft pin (27) is sleeved on the fifth shaft pin (28) on the pressure plate (21), and the fourth shaft pin (27) is connected to the fifth shaft pin (28) by a shaft pin.

5. A pipe puller according to claim 1, characterized in that: A first spring (211) is also provided between the facing surfaces of the fixed base (20) and the pressure plate (21).

6. A pipe puller according to claim 5, characterized in that: The pressure plate (21) is also provided with a connector (212), and the turntable (23) rotates along the connector (212) and is caused to adhere to the pressure plate (21) by a second spring (213).

7. A pipe puller according to claim 6, characterized in that: The turntable (23) facing the pressure plate (21) is also provided with a limiting protrusion (215), and the pressure plate (21) is also provided with a limiting groove (216) that matches the limiting protrusion (215).

8. A tube-pulling wrench according to any one of claims 1-7, characterized in that: The clamp body (1) includes a first clamp arm (10) and a second clamp arm (11), and the opening angle of the jaws is adjusted by an adjustment assembly (3).

9. A pipe puller according to claim 8, characterized in that: The adjustment assembly (3) includes a fixing plate (30) on which a pin (37) is provided. A knob (35) is provided to cause the pin (37) to slide along a groove (36) provided on the fixing plate (30). One end of the pin (37) after passing through the groove (36) is located between the first clamp arm (10) and the second clamp arm (11).

10. A pipe puller according to claim 9, characterized in that: A first slot (12), a second slot (13), and a third slot (14) are provided between the facing surfaces of the first clamp arm (10) and the second clamp arm (11), and the gap between the first slot (12), the second slot (13), and the third slot (14) gradually decreases, and the opening angle of the jaws is adjusted by sliding the pin (37) between the first slot (12), the second slot (13), and the third slot (14).

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