Bolt dismounting device

Abstract

The utility model provides a bolt dismounting device which comprises an occlusion ring, one or more sets of occlusion supporting assemblies are arranged on the occlusion ring in a penetrating mode in the radial direction, each occlusion supporting assembly comprises two occlusion arms, and the two occlusion arms are symmetrically arranged on the occlusion ring in a penetrating mode in the radial direction. The bolt dismounting device further comprises a rotary pull rod piece, the first end of the rotary pull rod piece is fixedly connected with one or more sets of meshing supporting assemblies, a rotary tail rest is arranged at the second end of the rotary pull rod piece, and a force application sliding block is arranged on a rod body of the rotary pull rod piece in a sliding mode. The device is simple in structure and low in cost, can be widely applied to various scenes where large bolts cannot be taken out, and has good economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of construction engineering technology, specifically to a bolt removal device. Background Technology

[0002] Bolts, as a general-purpose fastener, are widely used in many fields such as machinery manufacturing, construction engineering, and equipment maintenance. When it is necessary to remove bolts, people generally use wrenches. However, due to various reasons, many bolts will deform and get stuck, and wrenches often cannot effectively remove them. Especially for large bolts used in construction projects, ordinary wrenches are completely useless. Workers often have to choose hydraulic pumps to remove bolts, but this tool is relatively heavy, laborious to use, and inefficient. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a bolt removal device. This invention has a simple structure and low cost, and can be widely used in various scenarios where large bolts cannot be removed, offering significant economic benefits.

[0004] This utility model provides a bolt removal device, including a biting ring, on which one or more biting support assemblies are radially disposed. Each biting support assembly includes two biting arms, which are symmetrically and radially disposed on the biting ring. The bolt removal device also includes a pull rod, the first end of which is fixedly connected to one or more biting support assemblies, and the second end is provided with a rotating tail. A force-applying slider is slidably disposed on the rod body of the pull rod.

[0005] In one embodiment, the first end of the pull rod is provided with a transition plate, and the end of the biting arm of the biting support assembly away from the biting ring is connected to the transition plate.

[0006] In one embodiment, the transition plate has a plurality of mounting slots evenly distributed circumferentially, and the end of the biting arm of the biting support assembly away from the biting ring passes through the corresponding mounting slot and is fixed by a locking mechanism.

[0007] In one embodiment, the biting arm includes a biting post and a connecting rod, one end of the biting post being connected to the biting ring and the other end being connected to the connecting rod; the end of the connecting rod away from the biting post is adjustablely connected to a rotary lever.

[0008] In one embodiment, the engagement ring has a plurality of radial holes in the circumferential direction, and the engagement arm passes through the radial holes and connects to the engagement ring.

[0009] In one embodiment, a sliding handle is provided on the side of the force-applying slider.

[0010] In one embodiment, a rotating handle is provided on the side of the rotating tail rest.

[0011] In one embodiment, the inner diameter of the force-applying slider is smaller than the outer diameter of the rotating tail.

[0012] In one embodiment, the bite post is provided with a snap-fit ​​section that passes through the bite ring and is placed inside the bite ring.

[0013] The beneficial effects of the bolt removal device provided in this embodiment of the utility model are as follows:

[0014] This invention features a simple structure and low cost, making it widely applicable in various scenarios where large bolts cannot be removed, thus offering significant economic benefits. The device is compact, lightweight, and easy to carry to various work sites. Furthermore, it is simple to operate, requiring no specialized training for quick mastery.

[0015] The overall size of this utility model should be determined according to the actual size of the large bolt. Different sizes of tools can be made by combining different types of large bolts available on the market.

[0016] The bolt removal device provided by this utility model can also quickly and effectively remove deformed or jammed bolts, significantly improving the efficiency of dismantling operations. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural diagram (first perspective) of the bolt removal device provided in the embodiment of this utility model;

[0019] Figure 2 A three-dimensional structural schematic diagram (second perspective) of the bolt removal device provided in the embodiment of this utility model;

[0020] Figure 3 A three-dimensional structural diagram of the transition disk provided in an embodiment of this utility model.

[0021] Reference numerals: 1- Engaging ring; 2- Transition disc; 3- Rotary pull rod; 4- Engaging post; 5- Fixing bolt; 6- Connecting rod; 7- Engaging arm; 8- Rotating tail rest; 9- Force-applying slider; 10- Mounting groove; 11- Radial hole; 12- Sliding handle; 13- Rotating handle; 14- Snap-fit ​​section. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting the present utility model. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting the present utility model.

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0024] like Figure 1 and Figure 2 As shown, a bolt removal device includes a snap ring 1, on which one or more snap support assemblies are radially arranged. Each snap support assembly includes two snap arms 7, which are symmetrically and radially arranged on the snap ring 1. The bolt removal device also includes a pull rod 3, the first end of which is fixedly connected to one or more snap support assemblies, and the second end is provided with a rotating tail 8. A force-applying slider 9 is slidably arranged on the rod body of the pull rod 3.

[0025] The first end of the rotating rod 3 is provided with a transition plate 2, and the end of the biting arm 7 of the biting support assembly away from the biting ring 1 is connected to the transition plate 2.

[0026] The biting arm 7 includes a biting post 4 and a connecting rod 6. One end of the biting post 4 is connected to the biting ring 1, and the other end is connected to the connecting rod 6. Specifically, a small hole is opened on the connecting rod 6 for the biting post 4 to pass through. After the biting post 4 passes through the small hole, connecting bolts are set on both sides of the connecting rod 6 on the biting post 4. The connecting bolts position the connection between the biting post 4 and the connecting rod 6. The end of the connecting rod 6 away from the biting post 4 is adjustablely connected to the pull rod 3.

[0027] like Figure 3 As shown, the transition plate 2 has multiple mounting slots 10 evenly distributed circumferentially. The end of the biting arm 7 of the biting support assembly away from the biting ring 1 passes through the corresponding mounting slot 10 and is fixed by a locking mechanism. Specifically, the connecting rod 6 passes through the mounting slot 10 on the transition plate 2, and two fixing bolts 5 are provided on the connecting rod 6 before and after the mounting slot 10, and it is fixed by these two fixing bolts 5. If necessary, mounting slots 10 can be opened on the transition plate 2 for installing connecting rods 6 of other biting support assemblies.

[0028] The bite ring 1 has multiple radial holes 11 in the circumferential direction, and the bite arm 7 passes through the radial holes 11 and connects to the bite ring 1. The bite ring 1 has multiple radial holes 11, the number of which can be 4-16. The bite posts 4 are inserted according to the actual situation. The more they are inserted, the stronger the bite force.

[0029] The bite post 4 is provided with a locking section 14, which passes through the bite ring 1 and is placed inside the bite ring 1. Specifically, the locking section 14 should be as rough as possible.

[0030] Specifically, the function of the engagement ring 1 is to "lock" the large bolt. Therefore, it is fitted around the outside of the large bolt during use. The engagement post 4 passes through the radial hole 11, and the locking section 14 abuts against the inner surface of the large bolt. The inner diameter of the engagement ring 1 should be determined according to the actual size of the large bolt nut, and should not exceed 3% of the actual size of the large bolt nut.

[0031] The outer end of the bite post 4 should be relatively smooth to prevent scratches; if necessary, it can be hammered with a small hammer to ensure that the bite post and the inner side of the large bolt are in close contact.

[0032] The force-applying slider 9 is provided with a sliding handle 12 on its side.

[0033] A rotating handle 13 is provided on the side of the rotating tail rest 8.

[0034] The inner diameter of the force-applying slider 9 is smaller than the outer diameter of the rotating tail rest 8.

[0035] The surfaces where the pull rod 3 and the force-applying slider 9 meet should be as smooth as possible. When it is necessary to rotate the large bolt, the locking section 14 should be pressed against the inner side of the large bolt, and then the rotating handles 13 at both ends of the rotating tail rest 8 should be held by hand to rotate it. When it is necessary to pull the large bolt outward, since the force-applying slider 9 is slidably set on the pull rod 3, the sliding handles 12 at both ends of the force-applying slider 9 can be held and moved back and forth repeatedly. The force-applying slider 9 collides with the rotating tail rest 8 to generate an impact force, thereby pulling out the large bolt.

[0036] When in use, when the large bolt is separated from the original bolt hole by a certain gap, the biting post 4 can be moved in the direction of the gap to adjust the depth of the biting post 4 into the engagement ring 1, so that the locking section 14 abuts against the inner side of the large bolt, and then the large bolt can be pulled out by the pulling force.

[0037] The overall size of this tool should be determined based on the actual size of the large bolt. Different sizes of tools can be made by combining different types of large bolts available on the market.

[0038] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use the bolt removal device of this utility model and achieve the positive effects described herein.

[0039] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0040] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A bolt removal device, characterized in that: The device includes a bite ring, on which one or more bite support assemblies are radially arranged. Each bite support assembly includes two bite arms, which are symmetrically arranged radially through the bite ring. The bolt removal device also includes a pull rod, the first end of which is fixedly connected to one or more bite support assemblies, and the second end is provided with a rotating tail. A force-applying slider is slidably arranged on the rod of the pull rod.

2. The bolt removal device according to claim 1, characterized in that: The first end of the swivel rod is provided with a transition plate, and the end of the biting arm of the biting support assembly away from the biting ring is connected to the transition plate.

3. The bolt removal device according to claim 2, characterized in that: The transition plate has multiple mounting slots evenly distributed along its circumference. The end of the biting arm of the biting support assembly that is away from the biting ring passes through the corresponding mounting slot and is fixed by a locking mechanism.

4. The bolt removal device according to claim 1, characterized in that: The biting arm includes a biting post and a connecting rod. One end of the biting post is connected to the biting ring, and the other end is connected to the connecting rod. The end of the connecting rod away from the biting post is adjustablely connected to a rotary lever.

5. The bolt removal device according to claim 1, characterized in that: The engagement ring has multiple radial holes in the circumferential direction, and the engagement arm passes through the radial holes and connects to the engagement ring.

6. The bolt removal device according to claim 1, characterized in that: The force-applying slider is provided with a sliding handle on its side.

7. The bolt removal device according to claim 1, characterized in that: A rotating handle is provided on the side of the rotating tail.

8. The bolt removal device according to claim 1, characterized in that: The inner diameter of the force-applying slider is smaller than the outer diameter of the rotating tail.

9. The bolt removal device according to claim 4, characterized in that: The bite post is provided with a snap-fit ​​section, which passes through the bite ring and is placed inside the bite ring.

Images