Bolt dismounting device

Abstract

The utility model discloses a bolt dismounting device, which belongs to the technical field of bolt dismounting, and comprises a wrench, a dismounting main body, a clamping component and a transmission stop dog, the wrench is provided with a bayonet, and the bayonet can clamp a bolt; the dismounting main body comprises a sliding rod and a force application block, the force application block is arranged on the sliding rod in a sleeving mode and is in sliding connection with the sliding rod, and the force application block can move in the axial direction of the sliding rod; the clamping assembly comprises a connecting plate, a guide plate and two clamping arms, one side of the connecting plate is connected with the end of the sliding rod, the other side of the connecting plate is connected with the guide plate, the clamping arms are slidably connected with the guide plate, and the two clamping arms are arranged at intervals in the extending direction of the guide plate; the two clamping arms can get close to each other or get away from each other so as to clamp or loosen the wrench; the transmission check block is fixedly connected to the sliding rod and located on the side close to the clamping assembly, the force application block can move along the sliding rod and apply impact force to the transmission check block, the bolt dismounting process is effectively achieved, the accidental injury risk caused by manual participation is reduced, and higher safety is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt disassembly and assembly, in particular to a bolt disassembly device. Background Art

[0002] Bolt connection is a common and critical fixing method during the installation and maintenance of mechanical equipment. Bolt connection is not only widely used in mechanical equipment, such as industrial machinery, vehicles, building structures and piping systems, but also indispensable in the assembly and maintenance of furniture, household appliances and other items in daily life. Bolt connection has the advantages of easy installation, simple disassembly and firm connection, so it occupies an important position in various engineering and manufacturing fields. However, bolts will be affected by environmental factors and working conditions during use, such as humidity, temperature changes, chemical corrosion and mechanical stress, which will cause the bolts to rust, deform or get stuck, bringing great difficulties to the subsequent disassembly work.

[0003] Especially in industrial production and equipment maintenance, bolts that have been used for a long time are often difficult to remove due to corrosion and wear. Traditional removal tools such as wrenches, box spanners and socket spanners cannot effectively remove bolts that are severely corroded or have excessive tightening force. In this case, operators usually need to use additional force, such as using an extension rod or a hammer wrench to increase the torque to loosen the bolt.

[0004] However, the hammer wrench has significant defects in actual operation. It requires two people to operate it, one person holding the wrench and the other person using a sledgehammer to hit the wrench. Since the movement trajectory of the sledgehammer is completely dependent on human control, the hammerer is likely to accidentally injure the person holding the wrench. This method is not only inefficient, but also has high safety risks. Utility Model Content

[0005] The utility model aims to provide a bolt disassembling device to solve the technical problems in the prior art that the hammering process of a wrench is inefficient and has potential safety hazards.

[0006] As conceived above, the technical solution adopted by the utility model is:

[0007] A bolt removal device, comprising:

[0008] A wrench, wherein the wrench is provided with a bayonet, and the bayonet can clamp the bolt;

[0009] A disassembly body, the disassembly body comprising a slide bar and a force block, the force block is sleeved on the slide bar and slidably connected with the slide bar, and the force block can move along the axial direction of the slide bar;

[0010] A clamping assembly, the clamping assembly comprising a connecting plate, a guide plate and two clamping arms, one side of the connecting plate is connected to the end of the sliding rod, the other side of the connecting plate is connected to the guide plate, the clamping arm is slidably connected to the guide plate, the two clamping arms are arranged at intervals along the extension direction of the guide plate, and the two clamping arms can approach or move away from each other to clamp or loosen the wrench;

[0011] A transmission block is fixedly connected to the slide bar and is located on a side close to the clamping assembly, and the force applying block can move along the slide bar and apply impact force to the transmission block.

[0012] Preferably, the clamping arm includes a connecting rod and a clamping portion, the clamping portion is sleeved on the connecting rod and located on a side away from the sliding rod, the clamping portion is used to clamp the wrench, a guide groove is provided on the guide plate, the guide groove extends in a direction parallel to the sliding rod, the connecting rod is passed through the guide groove and is slidably connected to the guide groove.

[0013] Preferably, a return spring is provided in the guide groove corresponding to each of the connecting rods, one end of the return spring is connected to the end of the guide groove, and the other end of the return spring is connected to the connecting rod.

[0014] Preferably, a locking nut is provided on the connecting rod, the locking nut is sleeved on the connecting rod and threadedly connected to the connecting rod, and the locking nut can abut against the guide plate.

[0015] Preferably, a positioning groove is provided on the clamping portion, and the wrench can be clamped in the positioning groove.

[0016] Preferably, an anti-slip layer is provided on the outer surface of the clamping portion.

[0017] Preferably, a limit block is provided at one end of the slide rod away from the clamping assembly, and the limit block is threadedly connected to the slide rod.

[0018] Preferably, a shock absorbing spring is arranged on the limit block, one end of the shock absorbing spring is connected to the limit block, and the other end of the shock absorbing spring can abut against the force applying block.

[0019] Preferably, the distance between the transmission block and the clamping assembly is a first distance value, and the first distance value is greater than or equal to 10 cm and less than or equal to 20 cm.

[0020] Preferably, a gripping handle is provided on the force applying block, and the gripping handle extends in a direction perpendicular to the sliding rod.

[0021] Beneficial effects of the utility model:

[0022] The bolt disassembly device proposed in the utility model, when in use, the operator first clamps the bolt to be disassembled with the bayonet of the wrench, after the bolt is clamped, the two clamping arms are moved away from each other and are in a relaxed state, so that the wrench can be placed between the two clamping arms, after the wrench is placed in a suitable position, the two clamping arms are moved close to each other, and the wrench is clamped. At this time, the wrench is not completely clamped, and the position of the wrench or the sliding rod can be fine-tuned to achieve the best operating position, and then the wrench is completely clamped. After the wrench is fixed, the operator moves the force block along the sliding rod and hits the transmission block, thereby applying an impact force to the transmission block, and the transmission block transmits the impact force received to the wrench through the sliding rod and the clamping arm in sequence, so that the wrench obtains a large kinetic energy to twist the bolt to realize the bolt disassembly process. The sliding connection design of the sliding rod and the force block enables the force block to move smoothly along the axial direction of the sliding rod, and the sliding rod guides the force block, ensuring that the moving path of the force block is single and stable, reducing the safety hazards caused by unstable manual operation. The clamping arm can adjust its position smoothly and accurately to achieve reliable clamping and loosening of the wrench, avoiding errors and mistakes in traditional manual operation; the design of the transmission block provides a focus point for the force block to effectively transfer the kinetic energy generated by the force block to the wrench, while also protecting the equipment. Through the coordinated cooperation between the wrench, the disassembly body, the clamping assembly and the transmission block, the disassembly process of bolts with strong tightening force can be effectively realized, while reducing the risk of accidental injury caused by manual participation, and the operation process has higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a bolt removal device provided in an embodiment of the utility model.

[0024] In the figure:

[0025] 10. Disassembly of the main body; 11. Slide bar; 12. Force block; 121. Holding handle; 13. Limit block; 14. Shock-absorbing spring;

[0026] 20. Clamping assembly; 21. Connecting plate; 22. Guide plate; 23. Clamping arm; 231. Connecting rod; 232. Clamping part;

[0027] 30. Transmission block. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0032] The embodiment of the utility model provides a bolt disassembly device, which can realize the disassembly process of bolts that are severely corroded or have excessive tightening force.

[0033] See also Figure 1 The bolt removal device provided in the embodiment of the utility model includes a wrench, a removal body 10, a clamping assembly 20 and a transmission block 30. Among them, a bayonet is provided on the wrench (not shown in the figure), which can clamp the bolt; the disassembly body 10 includes a slide bar 11 and a force block 12, the force block 12 is sleeved on the slide bar 11 and is slidably connected to the slide bar 11, and the force block 12 can move along the axial direction of the slide bar 11; the clamping assembly 20 includes a connecting plate 21, a guide plate 22 and two clamping arms 23, one side of the connecting plate 21 is connected to the end of the slide bar 11, and the other side of the connecting plate 21 is connected to the guide plate 22, the clamping arm 23 is slidably connected to the guide plate 22, the two clamping arms 23 are arranged at intervals along the extension direction of the guide plate 22, and the two clamping arms 23 can approach or move away from each other to clamp or release the wrench; the transmission stopper 30 is fixedly connected to the slide bar 11 and is located on a side close to the clamping assembly 20, and the force block 12 can move along the slide bar 11 and apply impact force to the transmission stopper 30.

[0034] It is understandable that the wrench is a conventional mechanical device in the art, commonly used to tighten bolts, nuts and other parts, and its specific structure and working principle are not described in detail here.

[0035] When in use, the operator first clamps the bolt to be removed with the bayonet of the wrench. After the bolt is clamped, the two clamping arms 23 are moved away from each other and are in a relaxed state, so that the wrench can be placed between the two clamping arms 23. After the wrench is placed in a suitable position, the two clamping arms 23 are moved close to each other to clamp the wrench. At this time, the wrench is not completely clamped. The position of the wrench or the slide bar 11 can be fine-tuned to achieve the optimal operating position. After that, the wrench is completely clamped. After the wrench is fixed, the operator moves the force block 12 along the slide bar 11 and hits the transmission block 30, thereby applying an impact force to the transmission block 30. The transmission block 30 transmits the impact force it receives to the wrench through the slide bar 11 and the clamping arms 23 in sequence, so that the wrench obtains greater kinetic energy to twist the bolt to realize the bolt removal process. The sliding connection design between the slide bar 11 and the force block 12 enables the force block 12 to move smoothly along the axis of the slide bar 11. The slide bar 11 guides the force block 12, ensuring that the moving path of the force block 12 is single and stable, reducing the safety hazards caused by unstable manual operation. The clamping arm 23 can adjust the position smoothly and accurately to achieve reliable clamping and loosening of the wrench, avoiding errors and mistakes in traditional manual operation; the design of the transmission block 30 provides a fulcrum for the force block 12, so as to effectively transfer the kinetic energy generated by the force block 12 to the wrench, and at the same time protect the equipment. Through the coordinated cooperation between the wrench, the disassembly body 10, the clamping assembly 20 and the transmission block 30, the disassembly process of bolts with strong tightening force can be effectively realized, while reducing the risk of accidental injury caused by human participation, and the operation process has higher safety.

[0036] Regarding the clamping assembly 20, the clamping arm 23 includes a connecting rod 231 and a clamping portion 232, the clamping portion 232 is sleeved on the connecting rod 231 and is located on a side away from the slide bar 11, the clamping portion 232 is used to clamp the wrench, the guide plate 22 is provided with a guide groove, the guide groove extends in a direction parallel to the slide bar 11, the connecting rod 231 is penetrated through the guide groove and is slidably connected with the guide groove, thereby ensuring the stability and accuracy of the movement of the clamping arm 23 on the guide plate 22. The sliding connection between the guide groove and the connecting rod 231 facilitates the operator to adjust the position of the clamping arm 23, and then fine-tune the clamping state of the wrench to achieve the best clamping effect, thereby improving the movement accuracy of the clamping arm 23. Through the above design, the clamping arm 23 can not only firmly clamp the wrench to prevent it from sliding or loosening during use, but also flexibly adapt to wrenches of various sizes and shapes in different environments, thereby improving the scope of application and practicality of the clamping arm 23.

[0037] Specifically, a return spring is provided in the guide groove corresponding to each connecting rod 231, one end of the return spring is connected to the end of the guide groove, and the other end of the return spring is connected to the connecting rod 231. Due to the presence of the return spring, when no external force is applied to the connecting rod 231, the return spring stretches under the action of elastic potential energy, driving the two clamping arms 23 to approach each other and abut against each other. When the wrench needs to be clamped, the operator pushes the two connecting rods 231 away from each other, compresses the return spring, and places the wrench between the two clamping parts 232. After that, the connecting rod 231 is relaxed, and the return spring loses pressure and stretches, pushing the two connecting rods 231 to approach each other, so that the two clamping parts 232 are close to each other to clamp the wrench. The return spring can provide a stable and continuous clamping force through elastic potential energy to ensure that the clamping part 232 can clamp the wrench. In addition, the operation process can be simplified, and only one operator is required to complete the operation, which simplifies the operation process and improves the operation efficiency.

[0038] Furthermore, during the disassembly process of the bolt, the force block 12 needs to transmit the impact force to the wrench through the clamping assembly 20 to realize the torsion process of the bolt. When the impact force is too large, in addition to most of the impact force acting on the wrench, a small part of the impact force may act on the connecting rod 231, thereby pushing the connecting rod 231 to deviate, causing the two clamping parts 232 to move away from each other, which may cause the wrench to loosen or even disengage, causing a safety hazard. Therefore, a locking nut is provided on the connecting rod 231, the locking nut is sleeved on the connecting rod 231 and is threadedly connected to the connecting rod 231, and the locking nut can abut against the guide plate 22. When the locking nut is rotated to contact the guide plate 22, a solid abutment point can be formed on the surface of the guide plate 22, which effectively plays a limiting effect on the connecting rod 231. Even in the case of a large impact force, the connecting rod 231 will not deviate, ensuring that the clamping part 232 can firmly clamp the wrench, avoiding the wrench from loosening or disengaging. The fixing of the locking nut ensures that the clamping assembly 20 remains stable during the entire operation process, avoiding changes in the clamping force caused by the deviation of the connecting rod 231, not only ensuring that the wrench can stably transmit the impact force and effectively realize the removal of the bolt, but also protecting the safety of the operator and preventing accidental injuries caused by the loosening of the wrench. In addition, the use of the locking nut simplifies the operation process. The operator only needs to rotate the locking nut to complete the fixing of the connecting rod 231, which is simple and efficient.

[0039] In order to further improve the clamping effect of the clamping arm 23 on the wrench, a positioning groove is provided on the clamping portion 232, and the wrench can be clamped in the positioning groove. The positioning groove can limit the wrench, and the operator does not need to worry about the wrench causing a safety accident due to uneven force or sudden loosening when using the device, which has high safety. In addition, due to the presence of the positioning groove, when the wrench is subjected to the impact force of the force block 12, the force can be evenly distributed on the clamping portion 232, thereby reducing the displacement of the wrench that may be caused by uneven force distribution, improving the efficiency of force transmission, and allowing the impact force applied by the force block 12 to be more directly and effectively transmitted to the bolt, thereby improving the efficiency of bolt removal.

[0040] In addition, the outer surface of the clamping portion 232 is provided with an anti-skid layer, thereby increasing the friction force on the surface of the clamping portion 232, preventing the wrench from slipping, and improving the clamping effect. In this embodiment, the anti-skid layer uses a rubber pad, which has a large friction force and can play an anti-skid effect; it also has a high elasticity and can play a shock-absorbing effect, thereby protecting the clamping portion 232 and increasing its service life.

[0041] Regarding the force block 12, in order to facilitate the operator to hold it, a gripping handle 121 is provided on the force block 12, and the gripping handle 121 extends in a direction perpendicular to the slide bar 11 to conform to ergonomics, so that the operator can hold the gripping handle 121 to apply force to the force block 12 to hit the transmission block 30. It can be understood that in order to facilitate the material acquisition and save costs, in this embodiment, the force block 12 uses an existing hammer, and an installation channel is opened along the axis of the hammer to sleeve it on the slide bar 11. In other embodiments, the force block 12 can also be applied by a mechanical arm or a cylinder, which will not be described in detail here.

[0042] During operation, since the force block 12 has a high impact force, in order to prevent the force block 12 from rebounding and sliding out of the slide rod 11 to cause a safety hazard, a limit block 13 is set at the end of the slide rod 11 away from the clamping assembly 20. The limit block 13 is threadedly connected to the slide rod 11. The limit block 13 can limit the force block 12 to prevent the force block 12 from sliding out. The limit block 13 is threadedly connected to the slide rod 11 to facilitate the disassembly and installation of the force block 12. When the force block 12 needs to be disassembled and assembled, only the limit block 13 needs to be screwed to disassemble it, thereby preventing the limit block 13 from interfering with the disassembly and assembly process of the force block 12.

[0043] Furthermore, a shock absorbing spring 14 is provided on the limit block 13, one end of the shock absorbing spring 14 is connected to the limit block 13, and the other end of the shock absorbing spring 14 can abut against the force block 12. When the force block 12 rebounds due to the impact force, the shock absorbing spring 14 can absorb part of the impact energy to protect the force block 12 and the limit block 13, thereby extending the service life of the device and improving the safety and stability during operation. In addition, the shock absorbing spring 14 reduces the vibration and noise caused by the rebound of the force block 12, thereby improving the operating comfort and the quietness of the working environment.

[0044] The design of the transmission block 30 is to provide a fulcrum for the force block 12, so as to effectively transfer the kinetic energy generated by the force block 12 to the wrench. In order to ensure that the transmission block 30 has a better transmission effect, the distance between the transmission block 30 and the clamping assembly 20 is a first distance value, and the first distance value is greater than or equal to 10 cm and less than or equal to 20 cm. The first distance value between the transmission block 30 and the clamping assembly 20 is set between 10 cm and 20 cm, which can ensure that the stroke of the force block 12 moving on the slide bar 11 is sufficient, so that the force block 12 can generate enough kinetic energy to impact the transmission block 30, which can effectively balance the impact force and safety of the force block 12, and ensure that the bolt removal process is both efficient and safe. Setting a distance range of 10 cm to 20 cm can provide an appropriate buffer zone to prevent the force block 12 from having insufficient impact force due to too short a distance during the process of applying the impact force, or increasing the difficulty of controlling the force block 12 due to too long a distance, which not only ensures the reliability of the operation, but also improves the stability of the device.

[0045] When the bolt removal device provided in this embodiment is used, the operator first clamps the bolt to be removed with the bayonet of the wrench. After the bolt is clamped, the operator pushes the two connecting rods 231 away from each other, compresses the reset spring, and places the wrench between the two clamping parts 232. After that, the connecting rod 231 is loosened, and the reset spring loses pressure and stretches, pushing the two connecting rods 231 closer to each other, and the two clamping parts 232 closer to each other to clamp the wrench. At this time, the wrench is not completely clamped, and the position of the wrench or the sliding rod 11 can be fine-tuned to achieve the best operating position , then, screw the locking nut until the locking nut abuts against the guide plate 22, thereby completing the fixing process of the wrench. After the wrench is fixed, the operator holds the gripping handle 121 and swings the force block 12 in the direction close to the clamping assembly 20, so that the force block 12 moves along the slide bar 11 and hits the transmission block 30, thereby applying an impact force to the transmission block 30. The transmission block 30 transmits the impact force received to the wrench through the slide bar 11 and the clamping arm 23 in sequence, so that the wrench obtains greater kinetic energy to twist the bolt to realize the bolt removal process.

[0046] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A bolt removal device, characterized in that: include: A wrench, wherein the wrench is provided with a bayonet, and the bayonet can clamp the bolt; A disassembly body (10), the disassembly body (10) comprising a slide bar (11) and a force block (12), the force block (12) being sleeved on the slide bar (11) and slidably connected to the slide bar (11), and the force block (12) being able to move along the axial direction of the slide bar (11); A clamping assembly (20), the clamping assembly (20) comprising a connecting plate (21), a guide plate (22) and two clamping arms (23), one side of the connecting plate (21) is connected to the end of the sliding rod (11), the other side of the connecting plate (21) is connected to the guide plate (22), the clamping arm (23) is slidably connected to the guide plate (22), the two clamping arms (23) are arranged at intervals along the extension direction of the guide plate (22), and the two clamping arms (23) can move closer to or farther away from each other to clamp or loosen the wrench; A transmission block (30) is fixedly connected to the slide bar (11) and is located on a side close to the clamping assembly (20); the force applying block (12) is capable of moving along the slide bar (11) and applying an impact force to the transmission block (30).

2. The bolt removal device according to claim 1, characterized in that: The clamping arm (23) comprises a connecting rod (231) and a clamping portion (232), wherein the clamping portion (232) is sleeved on the connecting rod (231) and is located on a side away from the sliding rod (11), and the clamping portion (232) is used to clamp the wrench. A guide groove is provided on the guide plate (22), and the guide groove extends in a direction parallel to the sliding rod (11). The connecting rod (231) is inserted into the guide groove and is slidably connected to the guide groove.

3. The bolt removal device according to claim 2, characterized in that: A return spring is provided in the guide groove corresponding to each connecting rod (231), one end of the return spring is connected to the end of the guide groove, and the other end of the return spring is connected to the connecting rod (231).

4. The bolt removal device according to claim 3, characterized in that: The connecting rod (231) is provided with a locking nut, the locking nut is sleeved on the connecting rod (231) and is threadedly connected to the connecting rod (231), and the locking nut can abut against the guide plate (22).

5. The bolt removal device according to claim 2, characterized in that: The clamping portion (232) is provided with a positioning groove, and the wrench can be clamped in the positioning groove.

6. The bolt removal device according to claim 2, characterized in that: The outer surface of the clamping portion (232) is provided with an anti-slip layer.

7. The bolt removal device according to claim 1, characterized in that: A limit block (13) is provided at one end of the slide rod (11) away from the clamping assembly (20), and the limit block (13) is threadedly connected to the slide rod (11).

8. The bolt removal device according to claim 7, characterized in that: The limit block (13) is provided with a shock absorbing spring (14), one end of the shock absorbing spring (14) is connected to the limit block (13), and the other end of the shock absorbing spring (14) can abut against the force applying block (12).

9. The bolt removal device according to any one of claims 1 to 8, characterized in that: The distance between the transmission block (30) and the clamping assembly (20) is a first distance value, and the first distance value is greater than or equal to 10 cm and less than or equal to 20 cm.

10. The bolt removal device according to any one of claims 1 to 8, characterized in that: The force applying block (12) is provided with a gripping handle (121), and the gripping handle (121) extends in a direction perpendicular to the sliding rod (11).

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