Chain type bolt dismantling equipment

Abstract

The utility model discloses chain type bolt dismantling equipment, and particularly relates to the technical field of bolt dismantling, the chain type bolt dismantling equipment comprises an extrusion mechanism, the front part of the right side of the outer surface of the extrusion mechanism is fixedly connected with a fixing block, the front part of the left side of the outer surface of the extrusion mechanism is fixedly connected with a limiting mechanism, and the front end of the outer surface of the fixing block is fixedly connected with a chain; the end, away from the fixing block, of the chain penetrates through the front portion of the outer surface of the limiting mechanism and extends to the outside, and the rear portion of an inner cavity of the extrusion mechanism is slidably connected with a telescopic mechanism. According to the chain type bolt dismantling equipment, the length of the chain can be adjusted and fixed through the arranged limiting mechanism, so that the chain can flexibly adapt to various fasteners with different diameters, tools do not need to be frequently replaced when the chain type bolt dismantling equipment is used for different work tasks, and the work efficiency is improved; and the length of the device can be adjusted through the arranged telescopic mechanism, the device can be prolonged to increase the torque, the strength of operators can be better exerted, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt removal, in particular to a chain-type bolt removal device. Background Art

[0002] In many industrial and mechanical fields, there are some large bolts and nuts that are difficult to operate with ordinary wrenches. These fasteners are often large in size and require high tightening force. Ordinary wrenches may not be able to provide sufficient torque and are difficult to operate in limited spaces. Therefore, a chain-type bolt removal device is needed to use the flexibility of the chain by wrapping around the bolt or nut to adapt to fasteners of different sizes and work in narrow spaces.

[0003] Chinese Patent Publication No. CN217648292U discloses a chain wrench, comprising a composite handle, one end of which is movably mounted with a chain via a pin, and one end of which is movably connected to a clamping head via a pin, a recessed groove set being provided on the inner wall of one end of the composite handle, and a through-hole being provided on the other end of the composite handle. The composite handle, chain, and clamping head provided in the above patent document cooperate with each other to form a chain wrench. Compared with traditional hook wrenches, the chain wrench can be adapted to round nuts or flat nuts of different specifications when used, thus having a wide range of uses and greater practicality. In addition, the composite handle, chain, and clamping head are simple and easy to obtain, with low processing cost. The recessed groove set, when used together with the above chain wrench, can increase the friction between the chain wrench's twisting port and the round nut or flat nut, making it easier for the user to twist the wrench.

[0004] However, the above patent documents still have the following defects in the implementation process:

[0005] Although the above-mentioned patented device can tighten bolts, the length of the chain cannot be adjusted during use, and the chain wrench cannot be flexibly adapted to fasteners of various diameters, which reduces the scope of use of the chain wrench and requires frequent tool replacement when facing different work tasks, reducing work efficiency. In addition, the length of the handle cannot be adjusted. In a relatively open work area, for some large fasteners or operations requiring greater torque, the handle cannot be extended to increase the torque, which cannot make the operation easier and more labor-saving, and cannot better exert the operator's strength, which may reduce work efficiency. Utility Model Content

[0006] The main purpose of the utility model is to provide a chain-type bolt removal device, which can effectively solve the problem of adjusting the chain length.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A chain-type bolt removal device includes an extrusion mechanism, a fixed block is fixedly connected to the front right side of the outer surface of the extrusion mechanism, a limiting mechanism is fixedly connected to the front left side of the outer surface of the extrusion mechanism, a chain is fixedly connected to the front end of the outer surface of the fixed block, the end of the chain away from the fixed block passes through the front end of the outer surface of the limiting mechanism and extends to the outside, and a telescopic mechanism is slidably connected to the rear part of the inner cavity of the extrusion mechanism.

[0009] Preferably, the limiting mechanism includes a fixing box, which is fixedly connected to the front left side of the outer surface of the extrusion mechanism, and cylindrical grooves are provided on the front and rear sides of the middle left end of the outer surface of the fixing box. The right walls of the inner cavities of the two cylindrical grooves are fixedly connected with springs, and the inner cavities of the two cylindrical grooves are slidably connected with support columns. The right ends of the two support columns pass through the middle right wall of the inner cavity of the cylindrical groove on the same side and extend to the outside. The right ends of the two support columns are jointly fixedly connected to a fixing plate, and the front and rear sides of the middle right end of the outer surface of the fixing plate are fixedly connected with pins, and hole grooves are provided on the front and rear sides of the middle right wall of the inner surface of the fixing box.

[0010] Preferably, a screw 1 is threadedly connected to the middle of the left end of the outer surface of the fixing box, and the right end of the screw 1 passes through the middle of the left end of the outer surface of the fixing box and extends to the outside. The shapes of the two hole grooves correspond to the shapes of the right ends of the two pins on the same side.

[0011] Preferably, the extrusion mechanism includes a circular tube and a support ring, the front part of the inner surface of the circular tube is slidably connected to a sliding column, the left and right sides of the front part of the inner surface of the circular tube are provided with a limiting groove, the left and right sides of the outer surface of the sliding column are fixedly connected to a limiting strip, the two limiting strips are respectively slidably connected to the inner cavity of the limiting groove on the same side, the rear end of the sliding column is threadedly connected to a threaded rod, the support ring is fixedly connected to the rear side of the inner surface of the circular tube, the support ring is internally rotatably connected to a rotating mechanism, the front end of the rotating mechanism is fixedly connected to the rear end of the threaded rod, and the front end of the sliding column is fixedly connected to a clamping block.

[0012] Preferably, the rotating mechanism includes a rotating tube, the front side of the outer surface of the rotating tube is rotatably connected to the inside of the support ring, the rear end of the rotating tube passes through the rear wall of the inner cavity of the circular tube and extends to the outside, two limiting grooves are provided on the left and right sides of the middle part of the inner surface of the rotating tube, and a threaded hole is provided on the upper rear part of the outer surface of the rotating tube.

[0013] Preferably, the telescopic mechanism includes a second sliding column, which is slidably connected to the inner cavity of the rotating tube, and the rear end of the second sliding column passes through the rear wall of the inner cavity of the rotating tube and extends to the outside. A second threaded hole is provided on the upper rear part of the outer surface of the second sliding column, and the rear end of the second sliding column is fixedly connected to a knob, and the rear end of the second sliding column passes through the middle of the front end of the knob and is fixedly connected to the rear wall of the inner cavity of the knob. A second screw is threadedly connected to the middle of the upper end of the outer surface of the knob, and the second screw passes through the upper end of the outer surface of the knob and extends to the outside. The left and right sides of the middle of the outer surface of the second sliding column are fixedly connected to two limit strips.

[0014] Preferably, the two second limiting strips are both slidably connected to the inner cavity of the second limiting groove on the same side, and the front portion of the knob is slidably connected to the rear portion of the outer surface of the rotating tube.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. During use, the utility model can adjust and fix the length of the chain through the provided limiting mechanism, so that the chain wrench can flexibly adapt to fasteners of various diameters, thereby increasing the scope of use of the chain wrench and eliminating the need for frequent tool changes when facing different work tasks, thereby effectively improving work efficiency.

[0017] 2. During use, the utility model can adjust the length of its handle through the telescopic mechanism, so that when operating some large fasteners or operations requiring large torque, the handle can be extended to increase the torque, making the operation easier and more labor-saving, and can better exert the strength of the operator, effectively improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 For the utility model Figure 1 Schematic diagram of the enlarged view at point A in the middle;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the extrusion mechanism of the present utility model;

[0021] Figure 4 This is a schematic cross-sectional structure diagram of the telescopic mechanism of the present utility model;

[0022] Figure 5 This is a schematic diagram of the overall structure of the utility model from another perspective.

[0023] In the figure: 1. Chain; 2. Fixed block; 3. Limiting mechanism; 31. Fixed box; 32. Screw 1; 33. Cylindrical groove; 34. Spring; 35. Support column; 36. Fixed plate; 37. Pin; 38. Hole groove; 4. Extrusion mechanism; 41. Round tube 1; 42. Sliding column 1; 43. Limiting groove 1; 44. Limiting strip 1; 45. Threaded rod; 46. Rotating mechanism; 461. Rotating tube; 462. Threaded hole 1; 463. Limiting groove 2; 47. Support ring; 48. Clamp; 5. Telescopic mechanism; 51. Sliding column 2; 52. Knob; 53. Limiting strip 2; 54. Threaded hole 2; 55. Screw 2. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1 As shown, a chain-type bolt removal device includes an extrusion mechanism 4, a fixed block 2 is fixedly connected to the front right side of the outer surface of the extrusion mechanism 4, a limiting mechanism 3 is fixedly connected to the front left side of the outer surface of the extrusion mechanism 4, a chain 1 is fixedly connected to the front end of the outer surface of the fixed block 2, and the end of the chain 1 away from the fixed block 2 passes through the front surface of the limiting mechanism 3 and extends to the outside, and a telescopic mechanism 5 is slidably connected to the rear part of the inner cavity of the extrusion mechanism 4.

[0026] During the specific implementation of the present invention, the operator first adjusts the length of the chain 1 by operating the internal structure of the limiting mechanism 3 according to the size of the bolt, so that the chain 1 can move inside the limiting mechanism 3, and then puts the chain 1 on the bolt, and then pulls one end of the chain 1 to adapt to the shape of the bolt, and then fixes the chain 1 through the limiting mechanism 3, and then under the action of the internal structure of the squeezing mechanism 4, the front end of the squeezing mechanism 4 is pressed against the bolt, and then the operator pushes the squeezing mechanism 4 to remove the bolt. When it is necessary to operate some large fasteners or require a large torque, the telescopic mechanism 5 can be used to extend the device to increase the torque, making its operation easier and more labor-saving, and effectively improving work efficiency.

[0027] Specifically, in order to adjust the length of the chain 1 and fix it, refer to Figure 2In this solution, the limiting mechanism 3 includes a fixing box 31, which is fixedly connected to the front left side of the outer surface of the extrusion mechanism 4. A cylindrical groove 33 is provided on the front and rear sides of the middle left end of the outer surface of the fixing box 31. A spring 34 is fixedly connected to the right wall of the inner cavity of the two cylindrical grooves 33. A support column 35 is slidably connected to the inner cavity of the two cylindrical grooves 33. The right ends of the two support columns 35 pass through the middle right wall of the inner cavity of the cylindrical groove 33 on the same side and extend to the outside. The right ends of the two support columns 35 are jointly fixedly connected to a fixing plate 36. Pins 37 are fixedly connected to the front and rear sides of the middle right end of the outer surface of the fixing plate 36. A hole groove 38 is provided on the front and rear sides of the middle right wall of the inner surface of the fixing box 31.

[0028] Furthermore, a screw 32 is threadedly connected to the middle of the left end of the outer surface of the fixing box 31, and the right end of the screw 32 passes through the middle of the left end of the outer surface of the fixing box 31 and extends to the outside. The shapes of the two holes 38 correspond to the shapes of the right ends of the two pins 37 on the same side.

[0029] In the above description, when the chain 1 is adjusted to a suitable length in the inner cavity of the fixing box 31, the turntable at the left end of the screw 1 32 is rotated to move the screw 1 32 to the right to squeeze the fixing plate 36, and the fixing plate 36 is moved parallel to the right through the provided support column 35, and then the right end of the provided pin 37 can pass through the gap inside the chain 1 and then slide and connect to the inner cavity of the hole groove 38, thereby achieving the purpose of fixing the chain 1.

[0030] Specifically, in order to achieve the purpose of tightening the bolts on the chain 1 so that they will not slip when twisting, refer to Figure 3 and Figure 4 In this solution, the extrusion mechanism 4 includes a circular tube 41 and a support ring 47. The front part of the inner surface of the circular tube 41 is slidably connected to a sliding column 42. The left and right sides of the front part of the inner surface of the circular tube 41 are provided with a limiting groove 43. The left and right sides of the outer surface of the sliding column 42 are fixedly connected to a limiting strip 44. The two limiting strips 44 are respectively slidably connected to the inner cavity of the limiting groove 43 on the same side. The rear end of the sliding column 42 is threadedly connected to a threaded rod 45. The support ring 47 is fixedly connected to the rear side of the inner surface of the circular tube 41. The support ring 47 is rotatably connected to a rotating mechanism 46 inside the support ring 47. The front end of the rotating mechanism 46 is fixedly connected to the rear end of the threaded rod 45. The front end of the sliding column 42 is fixedly connected to a clamping block 48.

[0031] Furthermore, the rotating mechanism 46 includes a rotating tube 461. The front side of the outer surface of the rotating tube 461 is rotatably connected to the inside of the support ring 47. The rear end of the rotating tube 461 passes through the rear wall of the inner cavity of the circular tube 41 and extends to the outside. A limiting groove 463 is provided on the left and right sides of the middle of the inner surface of the rotating tube 461, and a threaded hole 462 is provided on the upper rear part of the outer surface of the rotating tube 461.

[0032] In the above description, the operator rotates the internal structure of the telescopic mechanism 5, driving the rotating mechanism 46 to rotate in the inner cavity of the circular tube 41, and the rotation of the rotating mechanism 46 drives the threaded rod 45 to rotate. Then, through the action of the limiting strip 44 and the limiting groove 43 provided on the outer surface of the sliding column 42, the threaded rod 45 rotates and drives the sliding column 42 threadedly connected on the surface to slide forward, so that the clamping block 48 presses against the bolt to achieve the purpose of fixation.

[0033] Specifically, in order to achieve the purpose of expanding and contracting the device, refer to Figure 4 In this solution, the telescopic mechanism 5 includes a second sliding column 51, which is slidably connected to the inner cavity of the rotating tube 461. The rear end of the second sliding column 51 passes through the rear wall of the inner cavity of the rotating tube 461 and extends to the outside. A second threaded hole 54 is provided on the rear upper portion of the outer surface of the second sliding column 51. The rear end of the second sliding column 51 is fixedly connected to a knob 52. The rear end of the second sliding column 51 passes through the middle of the front end of the knob 52 and is fixedly connected to the rear wall of the inner cavity of the knob 52. A second screw 55 is threadedly connected to the middle of the upper end of the outer surface of the knob 52. The second screw 55 passes through the upper end of the outer surface of the knob 52 and extends to the outside. The left and right sides of the middle of the outer surface of the second sliding column 51 are fixedly connected to a limit strip 53.

[0034] Furthermore, the two second limiting strips 53 are both slidably connected to the inner cavity of the second limiting groove 463 on the same side, and the front portion of the knob 52 is slidably connected to the rear portion of the outer surface of the rotating tube 461.

[0035] In the above, when the front end of the knob 52 is in close contact with the rear end of the round tube 41, the threaded hole 462 and the threaded hole 2 54 are in an overlapping state, and then the screw 2 55 is tightened downward through the threaded hole 462 to enter the inner cavity of the threaded hole 2 54, so that it will not slip when it is not needed to be lengthened. Then, by rotating the knob 52, the rotating tube 461 is rotated under the action of the set limit groove 2 463 and the limit bar 2 53, and then the threaded rod 45 is driven to rotate to achieve the purpose of tightening the bolt. When it is necessary to lengthen to increase the torque, the screw 2 55 is rotated to move the screw 2 55 upward from the inner cavity of the threaded hole 2 54 and the threaded hole 1 462, and then the knob 52 is pulled to make the sliding column 2 51 slide backward from the inner cavity of the rotating tube 461 to achieve the length of the adjustment device, so that the torque is increased.

[0036] It should be noted that the specific installation method of the chain 1 used in the present invention is a conventional design and will not be elaborated in detail in the present invention.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A chain-type bolt removal device, comprising a squeezing mechanism (4), characterized in that: The front right portion of the outer surface of the extrusion mechanism (4) is fixedly connected to a fixed block (2), the front left portion of the outer surface of the extrusion mechanism (4) is fixedly connected to a limiting mechanism (3), the front end of the outer surface of the fixing block (2) is fixedly connected to a chain (1), the end of the chain (1) away from the fixing block (2) passes through the front end of the outer surface of the limiting mechanism (3) and extends to the outside, and the rear portion of the inner cavity of the extrusion mechanism (4) is slidably connected to a telescopic mechanism (5).

2. The chain-type bolt removal device according to claim 1, characterized in that: The limiting mechanism (3) comprises a fixing box (31), the fixing box (31) is fixedly connected to the front left side of the outer surface of the extrusion mechanism (4), a cylindrical groove (33) is provided on the front and rear sides of the middle left end of the outer surface of the fixing box (31), a spring (34) is fixedly connected to the right wall of the inner cavity of the two cylindrical grooves (33), a support column (35) is slidably connected to the inner cavity of the two cylindrical grooves (33), the right ends of the two support columns (35) pass through the middle right wall of the inner cavity of the cylindrical groove (33) on the same side and extend to the outside, the right ends of the two support columns (35) are commonly fixedly connected to a fixing plate (36), the front and rear sides of the middle right end of the outer surface of the fixing plate (36) are fixedly connected to a pin (37), and a hole groove (38) is provided on the front and rear sides of the middle right wall of the inner surface of the fixing box (31).

3. The chain-type bolt removal device according to claim 2, characterized in that: A screw (32) is threadedly connected to the middle of the left end of the outer surface of the fixing box (31), and the right end of the screw (32) passes through the middle of the left end of the outer surface of the fixing box (31) and extends to the outside. The shapes of the two hole grooves (38) correspond to the shapes of the right ends of the two pins (37) on the same side.

4. The chain-type bolt removal device according to claim 1, characterized in that: The extrusion mechanism (4) comprises a circular tube (41) and a support ring (47), wherein the front portion of the inner surface of the circular tube (41) is slidably connected to a sliding column (42), the left and right sides of the front portion of the inner surface of the circular tube (41) are provided with a limiting groove (43), the left and right sides of the outer surface of the sliding column (42) are fixedly connected to a limiting strip (44), the two limiting strips (44) are respectively slidably connected to the inner cavity of the limiting groove (43) on the same side, the rear end of the sliding column (42) is threadedly connected to a threaded rod (45), the support ring (47) is fixedly connected to the rear side of the inner surface of the circular tube (41), the interior of the support ring (47) is rotatably connected to a rotating mechanism (46), the front end of the rotating mechanism (46) is fixedly connected to the rear end of the threaded rod (45), and the front end of the sliding column (42) is fixedly connected to a clamping block (48).

5. The chain-type bolt removal device according to claim 4, characterized in that: The rotating mechanism (46) includes a rotating tube (461), the front side of the outer surface of the rotating tube (461) is rotatably connected to the inside of the support ring (47), the rear end of the rotating tube (461) passes through the rear wall of the inner cavity of the circular tube (41) and extends to the outside, the left and right sides of the middle part of the inner surface of the rotating tube (461) are provided with a limiting groove (463), and the upper rear part of the outer surface of the rotating tube (461) is provided with a threaded hole (462).

6. The chain-type bolt removal device according to claim 5, characterized in that: The telescopic mechanism (5) includes a second sliding column (51), the second sliding column (51) is slidably connected to the inner cavity of the rotating tube (461), the rear end of the second sliding column (51) passes through the rear wall of the inner cavity of the rotating tube (461) and extends to the outside, a second threaded hole (54) is provided on the upper rear part of the outer surface of the second sliding column (51), the rear end of the second sliding column (51) is fixedly connected to the knob (52), the rear end of the second sliding column (51) passes through the middle of the front end of the knob (52) and is fixedly connected to the rear wall of the inner cavity of the knob (52), the middle part of the upper end of the outer surface of the knob (52) is threadedly connected to the second screw (55), the second screw (55) passes through the upper end of the outer surface of the knob (52) and extends to the outside, and the left and right sides of the middle of the outer surface of the second sliding column (51) are fixedly connected to the second limit bar (53).

7. The chain-type bolt removal device according to claim 6, characterized in that: The two second limiting strips (53) are both slidably connected to the inner cavity of the second limiting groove (463) on the same side, and the front part of the knob (52) is slidably connected to the rear part of the outer surface of the rotating tube (461).

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