Jackhammer sleeve convenient to attach

Abstract

The utility model relates to the technical field of pneumatic hammer sleeves, and discloses a pneumatic hammer sleeve convenient to attach. The pneumatic hammer sleeve convenient to attach comprises a sleeve body, a limiting ring is fixedly installed at the top end of the sleeve body, a rubber pad is fixedly installed in the sleeve body, a reset spring is fixedly installed at the lower end of the sleeve body, a limiting plate is fixedly installed at the lower end of the reset spring, and a sleeve pipe is fixedly installed above the limiting plate. When the sleeve needs to be taken down from the quick connection base, outward force is applied to the sleeve through a sleeve, a limiting plate extrudes a reset spring and drives a sliding block to move upwards, so that the sliding block moves out of the position between balls, and a limiting spring drives a positioning pin to retract into the limiting block through a transmission block; when the sleeve rotates, the position of the positioning pin can be limited by the limiting spring, and the situation that the sleeve cannot be rapidly taken down due to the fact that the stop bead of the quick release structure is clamped under the action of centrifugal force when the sleeve rotates can be avoided in this way.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic wrench sockets, in particular to a pneumatic wrench socket that is convenient to be closely attached. Background Technique

[0002] A pneumatic wrench is a pneumatic tool. Because it makes a relatively loud noise like the sound of a cannon when working, it gets its name and is also called a pneumatic wrench. Its power source is the compressed air output by an air compressor. When the compressed air enters the cylinder of the pneumatic wrench, it drives the impeller inside to rotate and generate rotational power. The impeller then drives the connected socket to tighten or remove bolts or nuts. It is a tool for disassembling and assembling bolts and nuts that is both efficient and safe.

[0003] For the existing Chinese utility model patent with the reference publication number: CN211220473U, it discloses a pneumatic wrench socket that is convenient to be closely attached. Its structure includes: a connecting short tube, a connecting ring, and a socket body. One side of the connecting short tube is connected to the socket body, and the connecting ring is arranged on the socket body. The socket body also includes a clamping opening, a moving sliding pad, a connecting rod, an inner wall of the tube, a protective shell, and a spring. By making the inner wall of the tube in the clamping opening stick to the outer wall of the nut, the outer wall of the nut is located below the moving sliding pad. Then, the connecting ring is slid downwards. Under the action of the chute, the connecting rod drives the moving sliding pad to move downwards, and the spring deforms, causing the lower end of the moving sliding pad to gradually be stuck between the inner wall of the tube and the outer wall of the nut. After the pneumatic wrench socket is sleeved on the nut or bolt, it can increase its tightness by sliding the connecting ring downwards, so that the connecting rod drives the moving sliding pad to be stuck between the inner wall of the tube and the outer wall of the nut, and the caliber is changed. Thus, it not only realizes that the clamping opening is suitable for various nuts, but also realizes that the inner wall of the tube can still rotate the nut or bolt after multiple grindings.

[0004] The existing pneumatic wrench sockets generally achieve the purpose of quick disassembly through a ball structure. When the socket rotates, the ball may be stuck with the socket under the action of centrifugal force, resulting in the socket being unable to be quickly removed. At the same time, the existing pneumatic wrench sockets have a large instantaneous stress between the socket and the bolt when the pneumatic wrench starts, which may cause the bolt to be stuck inside the socket. Therefore, the size of the connection between the socket and the bolt should be slightly larger than the bolt. However, this method will cause friction between the inner wall of the socket and the outer wall of the bolt when the socket rotates, affecting the service life of the socket. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a pneumatic wrench socket that is convenient to be closely attached, which has the advantages of avoiding the jamming of the quick-disassembly structure and making the socket closely attached to the bolt while avoiding the jamming of the bolt, and solves the above technical problems.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solutions: A pneumatic wrench socket that is convenient to fit tightly, comprising: a socket, a limiting ring is fixedly installed at the top end of the socket, a rubber pad is fixedly installed inside the socket, a return spring is fixedly installed at the lower end of the socket, a limiting plate is fixedly installed at the lower end of the return spring, a sleeve is fixedly installed above the limiting plate, a limiting block is fixedly installed at the bottom of the socket, a slider is movably installed inside the limiting block, a connecting block is fixedly installed on the left side of the slider, a positioning pin is movably installed inside the limiting block, a limiting spring is inserted outside the positioning pin, a transmission block is fixedly installed at the end of the limiting spring, and a ball is fitted inside the transmission block; the socket can limit the position of the bolt.

[0009] As a preferred technical solution of the present utility model, the inner wall of the top end of the limiting ring is provided with a slope structure, the top end of the rubber pad extends into the inside of the limiting ring, the thickness of the rubber pad is 1 mm, and the rubber pad completely covers the tooth-shaped structure on the inner wall of the socket; the limiting ring can facilitate the bolt to enter the inside of the socket.

[0010] As a preferred technical solution of the present utility model, a rectangular opening structure that fits with the limiting block is provided at the center of gravity of the limiting plate, and the limiting plate is movably connected to the socket through the return spring; the return spring can facilitate the reset of the limiting plate.

[0011] As a preferred technical solution of the present utility model, the inner diameter of the sleeve is larger than the outer diameter of the socket, the sleeve is slidably connected to the socket, the outer diameter of the sleeve is equal to the outer diameter of the limiting plate, and the bottom end of the sleeve is fixedly connected to the top surface of the limiting plate; the sleeve can facilitate driving the limiting plate to move.

[0012] As a preferred technical solution of the present utility model, a chute structure that fits with the connecting block is provided at the center of gravity of the limiting block, the slider is located at the center of the limiting block, and the slider is slidably connected to the limiting block, and slope structures are provided on the front and rear side surfaces at the bottom end of the slider; the slider can limit the position of the ball.

[0013] As a preferred technical solution of the present utility model, the connecting blocks are symmetrically installed on the top ends of the left and right side surfaces of the slider, the slider is fixedly connected to the limiting plate through the connecting block, and the connecting block is slidably connected to the limiting block; the connecting block can facilitate the connection between the slider and the limiting plate and limit the position of the slider.

[0014] As a preferred technical solution of the present utility model, the end of the positioning pin is fixedly connected to the transmission block, the front end of the limiting spring is fixedly connected to the limiting block, the transmission block is slidably connected to the limiting block, the ball is rotatably connected to the transmission block, and the ball contacts the slider; the ball can facilitate the slider to drive the transmission block to move.

[0015] Compared with the prior art, the utility model provides an air impact wrench socket that is convenient to be closely attached, having the following beneficial effects:

[0016] 1. Through the setting of the slider in the utility model, the slider is fixedly connected with the limiting plate through the connecting block. Since the top end of the return spring is fixedly connected with the bottom end of the socket, and the bottom end of the return spring is fixedly connected with the limiting plate, the return spring can limit the position of the slider when there is no external force, so that the bottom end of the slider contacts the bottom end of the limiting block chute structure. At this time, the transmission block and the ball are located on the front and back sides of the slider. The transmission block will squeeze the limiting spring and make the positioning pin extend out from the inside of the limiting block to achieve the self-locking effect. When it is necessary to remove the socket from the quick-connect base, an outward force is applied to the socket through the sleeve, so that the limiting plate squeezes the return spring and drives the slider to move upward, making the slider move out between the balls. The limiting spring will drive the positioning pin to retract into the inside of the limiting block through the transmission block. Through the setting of the limiting spring, the position of the positioning pin will be restricted by the limiting spring when the socket rotates. This way can avoid the situation that the quick-release structure ball of the socket is stuck under the action of centrifugal force during rotation, resulting in the socket being unable to be quickly removed.

[0017] 2. Through the setting of the rubber pad in the utility model, the thickness of the rubber pad is 1 mm. The top end of the rubber pad extends into the inside of the limiting ring, and the rubber pad completely covers the tooth-shaped structure on the inner wall of the socket. Since the inner wall of the top end of the limiting ring is provided with a slope structure, when the socket is inserted on the outside of the bolt, the bolt will slide into the space between the rubber pads under the guidance of the limiting ring, so that the rubber pads are closely attached to the bolt. Since the rubber pad has a certain deformation ability, when the socket rotates, the rubber pad is driven to rotate, and the bolt will cause a certain deformation of the rubber pad. Finally, the bolt will be driven to rotate by the socket. This way can avoid the tooth-shaped structure on the inner wall of the socket being stuck with the bolt due to excessive instantaneous stress while making the bolt closely attached to the inner wall of the socket, and the rubber pad can play a role in protecting the inner wall of the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is a schematic diagram of the installation structure of the limiting ring and the rubber pad of the utility model;

[0020] Figure 3 is a schematic diagram of the connection structure between the sleeve and the socket of the utility model;

[0021] Figure 4 is a schematic diagram of the cross-sectional structure of the limiting block of the utility model;

[0022] Wherein: 1. Sleeve; 11. Limiting ring; 12. Rubber pad; 13. Return spring; 14. Limiting plate; 15. Sleeve tube; 2. Limiting block; 21. Slide block; 22. Connecting block; 23. Positioning pin; 24. Limiting spring; 25. Driving block; 26. Ball. Detailed implementation mode

[0023] The following further describes in detail the implementation mode of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0024] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Please refer to Figure 1 - Figure 4 , in this implementation mode, a pneumatic wrench sleeve that is convenient to be closely attached includes: a sleeve 1, a limiting ring 11 is fixedly installed at the top end of the sleeve 1, a rubber pad 12 is fixedly installed inside the sleeve 1, a return spring 13 is fixedly installed at the lower end of the sleeve 1, a limiting plate 14 is fixedly installed at the lower end of the return spring 13, and a sleeve tube 15 is fixedly installed above the limiting plate 14.

[0027] The inner wall of the top end of the limit ring 11 is provided with a slope structure. The top end of the rubber pad 12 extends into the limit ring 11. The thickness of the rubber pad 12 is 1 millimeter, and the rubber pad 12 completely covers the tooth-shaped structure on the inner wall of the sleeve 1. A rectangular opening structure for fitting with the limit block 2 is provided at the center of the limit plate 14. The limit plate 14 is movably connected to the sleeve 1 through a return spring 13. The inner diameter of the sleeve 15 is larger than the outer diameter of the sleeve 1. The sleeve 15 is slidably connected to the sleeve 1. The outer diameter of the sleeve 15 is equal to the outer diameter of the limit plate 14, and the bottom end of the sleeve 15 is fixedly connected to the top surface of the limit plate 14.

[0028] Specifically, the sleeve 1 can limit the position of the bolt. The limit ring 11 can facilitate the entry of the bolt into the sleeve 1. The rubber pad 12 can protect while preventing the bolt from jamming with the sleeve 1. The return spring 13 can facilitate the reset of the limit plate 14. The limit plate 14 can drive the connecting block 22 to move. The sleeve 15 can facilitate the movement of the limit plate 14.

[0029] A limit block 2 is fixedly installed at the bottom of the sleeve 1. A slider 21 is movably installed inside the limit block 2. A connecting block 22 is fixedly installed on the left side of the slider 21. A positioning pin 23 is movably installed inside the limit block 2. A limit spring 24 is inserted outside the positioning pin 23. The end of the limit spring 24 is fixedly installed with a transmission block 25. A ball 26 is fitted inside the transmission block 25.

[0030] A chute structure for fitting with the connecting block 22 is provided at the center of the limit block 2. The slider 21 is located at the center of the limit block 2, and the slider 21 is slidably connected to the limit block 2. Slope structures are provided on the front and rear side faces at the bottom end of the slider 21. The connecting blocks 22 are symmetrically installed on the top ends of the left and right side faces of the slider 21. The slider 21 is fixedly connected to the limit plate 14 through the connecting block 22. The connecting block 22 is slidably connected to the limit block 2. The end of the positioning pin 23 is fixedly connected to the transmission block 25. The front end of the limit spring 24 is fixedly connected to the limit block 2. The transmission block 25 is slidably connected to the limit block 2. The ball 26 is rotatably connected to the transmission block 25. The ball 26 contacts the slider 21.

[0031] Specifically, the limit block 2 can facilitate the connection between the sleeve 1 and the quick-connect base. The slider 21 can limit the position of the ball 26. The connecting block 22 can facilitate the connection between the slider 21 and the limit plate 14 and limit the position of the slider 21. The positioning pin 23 can limit the relative position between the limit block 2 and the quick-connect base. The limit spring 24 can facilitate the retraction of the positioning pin 23 into the limit block 2. The transmission block 25 can facilitate the adjustment of the contraction degree of the limit spring 24. The ball 26 can facilitate the movement of the slider 21 to drive the transmission block 25.

[0032] In use, the slider 21 is fixedly connected to the limit plate 14 through the connecting block 22. Since the top end of the return spring 13 is fixedly connected to the bottom end of the sleeve 1 and the bottom end of the return spring 13 is fixedly connected to the limit plate 14, the return spring 13 can limit the position of the limit plate 14 to make the bottom end of the slider 21 contact with the bottom end of the chute structure of the limit block 2 when there is no external force. At this time, the transmission block 25 and the ball 26 are located on the front and back sides of the slider 21. The transmission block 25 will squeeze the limit spring 24 and make the positioning pin 23 extend out of the inside of the limit block 2 to achieve a self-locking effect. When it is necessary to remove the sleeve 1 from the quick-connect base, an outward force is applied to the sleeve 1 through the sleeve 15, so that the limit plate 14 squeezes the return spring 13 and drives the slider 21 to move upward, so that the slider 21 moves out between the balls 26. The limit spring 24 will drive the positioning pin 23 to retract into the inside of the limit block 2 through the transmission block 25. Through the setting of the limit spring 24, the position of the positioning pin 23 will be limited by the limit spring 24 when the sleeve 1 rotates. This method can avoid the situation that the quick-release structure beads of the sleeve 1 are stuck under the action of centrifugal force during rotation, resulting in the sleeve 1 being unable to be quickly removed. The thickness of the rubber pad 12 is 1 mm. The top end of the rubber pad 12 extends into the inside of the limit ring 11, and the rubber pad 12 completely covers the tooth-shaped structure on the inner wall of the sleeve 1. Since the inner wall of the top end of the limit ring 11 is provided with a slope structure, when the sleeve 1 is inserted on the outside of the bolt, the bolt will slide into the rubber pads 12 under the guidance of the limit ring 11, so that the rubber pads 12 are closely attached to the bolt. Since the rubber pad 12 has a certain deformation ability, when the sleeve 1 rotates, the rubber pad 12 is driven to rotate, and the bolt will cause a certain deformation of the rubber pad 12. Finally, the bolt will be driven to rotate by the sleeve 1. This method can avoid the tooth-shaped structure on the inner wall of the sleeve 1 being stuck with the bolt due to excessive instantaneous stress while making the bolt closely attached to the inner wall of the sleeve 1, and the rubber pad 12 can protect the inner wall of the sleeve 1.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A jackhammer sleeve that is easy to stick to, characterized in that: include: A sleeve (1), a limit ring (11) is fixedly installed on the top of the sleeve (1), a rubber pad (12) is fixedly installed inside the sleeve (1), a return spring (13) is fixedly installed on the lower end of the sleeve (1), a limit plate (14) is fixedly installed on the lower end of the return spring (13), a sleeve (15) is fixedly installed above the limit plate (14), a limit block (2) is fixedly installed on the bottom of the sleeve (1), a slider (21) is movably installed inside the limit block (2), a connecting block (22) is fixedly installed on the left side of the slider (21), a positioning pin (23) is movably installed inside the limit block (2), a limit spring (24) is inserted and installed on the outer side of the positioning pin (23), a transmission block (25) is fixedly installed on the end of the limit spring (24), and a ball (26) is embedded and installed inside the transmission block (25).

2. The air gun sleeve that is easy to stick to according to claim 1 is characterized in that: The inner wall at the top end of the limiting ring (11) is provided with a slope structure, the top end of the rubber pad (12) extends to the inside of the limiting ring (11), the thickness of the rubber pad (12) is one millimeter, and the rubber pad (12) completely covers the toothed structure on the inner wall of the sleeve (1).

3. The air gun sleeve that is easy to stick to according to claim 1 is characterized in that: The center of gravity of the limit plate (14) is provided with a rectangular opening structure which engages with the limit block (2), and the limit plate (14) is movably connected to the sleeve (1) via a return spring (13).

4. The air gun sleeve that is easy to stick to according to claim 1 is characterized in that: The inner diameter of the sleeve (15) is greater than the outer diameter of the sleeve (1); a sliding connection is formed between the sleeve (15) and the sleeve (1); the outer diameter of the sleeve (15) is equal to the outer diameter of the limit plate (14); and the bottom end of the sleeve (15) is fixedly connected to the top surface of the limit plate (14).

5. The air gun sleeve that is easy to stick tightly according to claim 1 is characterized in that: The center of the limit block (2) is provided with a sliding groove structure engaged with the connecting block (22); the sliding block (21) is located at the center of the limit block (2); a sliding connection is formed between the sliding block (21) and the limit block (2); and the front and rear side elevations of the bottom end of the sliding block (21) are provided with a slope structure.

6. The air gun sleeve that is easy to stick to according to claim 1 is characterized in that: The connecting blocks (22) are symmetrically mounted on the top ends of the left and right vertical surfaces of the slider (21); the slider (21) is fixedly connected to the limit plate (14) via the connecting blocks (22); and a sliding connection is formed between the connecting blocks (22) and the limit blocks (2).

7. The air gun sleeve that is easy to stick to according to claim 1 is characterized in that: The end of the positioning pin (23) is fixedly connected to the transmission block (25), the front end of the limit spring (24) is fixedly connected to the limit block (2), the transmission block (25) and the limit block (2) are in sliding connection, the ball (26) and the transmission block (25) are in rolling connection, and the ball (26) is in contact with the slider (21).

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