Multifunctional rapid bolt fastening device

Abstract

The utility model relates to the technical field of mechanical tools, in particular to a multifunctional rapid bolt fastening device which comprises a ratchet chain, an adjusting assembly used for adjusting the exposed length of the ratchet chain is arranged outside the ratchet chain, and a transmission assembly used for driving the ratchet chain to rotate is arranged at one end of the adjusting assembly. The adjusting assembly comprises a threaded cylinder, the inner wall of one end of the threaded cylinder is in threaded connection with the exterior of the first threaded column, and the inner wall of the other end of the threaded cylinder is in threaded connection with the exterior of the second threaded column. The length of the exposed part of the ratchet chain is changed through the adjusting assembly, so that the exposed part of the ratchet chain can be tightly wrapped outside a workpiece so as to be suitable for workpieces of different sizes, and the applicability of the device is enhanced; and then the ratchet chain is driven to rotate through the transmission assembly, the ratchet chain drives the workpiece to rotate, and therefore the working efficiency is greatly improved, and operation on the long-stroke screw and bolt is more efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical tools, in particular to a multifunctional quick bolt fastening device. Background Art

[0002] A fastener is a commonly used installation and disassembly tool. It is a hand tool that uses the principle of leverage to turn bolts, screws, nuts and other threaded fasteners with openings or holes. A fastener usually has an opening or hole for clamping a bolt or nut at one or both ends of the handle to turn a nut or bolt of a certain size. The opening size of an open fastener is fixed, so it can only be used for nuts or bolts of one size. A ratchet fastener is a fastener used to rotate a bolt or nut placed in a narrow or difficult-to-access position. It is rotatably connected to the end of an operating rod, is easy to use, and has high work efficiency.

[0003] However, the above two types of fastening devices can only tighten bolts or nuts of a certain fixed size; and the above two types of fastening devices require a long working time for long-process screw bolts (such as wind turbine tower bolts, etc.), the use of repetitive actions, and low work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a multifunctional quick bolt fastening device to improve the applicability and working efficiency of the device, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a multifunctional quick bolt fastening device, comprising a ratchet chain, an adjusting assembly for adjusting the exposed length of the ratchet chain is provided on the outside of the ratchet chain, and a transmission assembly for driving the ratchet chain to rotate is provided at one end of the adjusting assembly;

[0006] Wherein, the adjustment component includes: a threaded barrel, the inner wall of one end of the threaded barrel is threadedly connected to the outside of threaded column one, the inner wall of the other end of the threaded barrel is threadedly connected to the outside of threaded column two, the end of threaded column one close to threaded column two is fixedly connected to one end of a plurality of groups of guide rods, the outside of the guide rods is slidably inserted into the inside of a circular cavity, and the circular cavity is opened inside the threaded barrel.

[0007] Preferably, the thread direction of the outside of the threaded column one is opposite to the thread direction of the outside of the threaded column two, and square cavities are provided inside the threaded column one and the threaded column two, and the inner wall of the square cavity is fixedly connected to the outside of the partition plate.

[0008] Preferably, one end of the threaded column one away from the threaded column two is fixedly connected to one end of the support plate, and the other end of the support plate is rotatably connected to both ends of the limiting roller. A limiting groove is provided on the side of the limiting roller, and the groove wall of the limiting groove is rollingly connected to the outside of the ratchet chain.

[0009] Preferably, a guide roller is installed at one end of the threaded column 2 away from the threaded column 1, and the side of the guide roller is rollingly connected to the outside of the ratchet chain.

[0010] Preferably, the transmission assembly includes: a gear, the outside of the gear meshes with the outside of the ratchet chain, the inner ring of the gear is fixedly sleeved on the side of the rotating shaft, the top of the rotating shaft is provided with a square groove, the side of the top end of the rotating shaft is rotatably inserted into the hole wall of the through hole, and the through hole is provided with a top of a top cover.

[0011] Preferably, the side portion of the bottom end of the rotating shaft is rotatably inserted into the hole wall, the hole is opened on the bottom surface inside the installation box, and the top of the installation box is fixedly connected to the bottom of the top cover.

[0012] Preferably, a mounting hole is opened on the side of the mounting box, and the hole wall of the mounting hole is fixedly sleeved on one end of the second threaded column close to the guide roller.

[0013] Preferably, the interior of the installation box is fixedly connected to the exterior of the limiting ring, and the gear is located on the inner ring of the limiting ring.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model changes the length of the exposed part of the ratchet chain by adjusting the component, so that the exposed part of the ratchet chain can be tightly wrapped around the outside of the workpiece, so as to be suitable for workpieces of different sizes, thereby enhancing the applicability of the device; then the ratchet chain is driven to rotate by the transmission component, and the ratchet chain drives the workpiece to rotate, thereby greatly improving the work efficiency and making it more efficient when operating on long process screw bolts.

[0016] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0019] Figure 3This is a schematic diagram of the transmission assembly structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0021] Figure 5 It is an enlarged schematic diagram of point A of the present utility model.

[0022] In the figure: 1. transmission assembly; 11. top cover; 12. through hole; 13. square groove; 14. rotating shaft; 15. gear; 16. limit ring; 17. hole; 18. mounting hole; 19. mounting box; 2. adjustment assembly; 21. threaded column one; 22. threaded cylinder; 23. threaded column two; 24. guide roller; 25. partition plate; 26. circular cavity; 27. guide rod; 28. limit roller; 29. ​​limit groove; 210. support plate; 3. ratchet chain; 31. bump. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a multifunctional quick bolt fastening device, comprising: a ratchet chain 3, an adjusting component 2 for adjusting the exposed length of the ratchet chain 3 is provided on the outside of the ratchet chain 3, and a transmission component 1 for driving the ratchet chain 3 to rotate is provided at one end of the adjusting component 2.

[0025] Furthermore, the adjustment component 2 is used to change the length of the exposed portion of the ratchet chain 3, so that the exposed portion of the ratchet chain 3 can be tightly wrapped around the outside of the workpiece, so as to be suitable for workpieces of different sizes, thereby enhancing the applicability of the device; then the ratchet chain 3 is driven to rotate through the transmission component 1, and the ratchet chain 3 drives the workpiece to rotate, thereby greatly improving the rotation efficiency. The inner ring of the ratchet chain 3 is provided with a protrusion 31, which is used to increase the friction between the ratchet chain 3 and the bolt, so that the ratchet chain 3 drives the bolt to rotate.

[0026] The adjusting assembly 2 includes: a threaded barrel 22, the inner wall of one end of the threaded barrel 22 is threadedly connected to the outside of the threaded column 1 21, the inner wall of the other end of the threaded barrel 22 is threadedly connected to the outside of the threaded column 23, one end of the threaded column 1 21 close to the threaded column 23 is fixedly connected to one end of a plurality of groups of guide rods 27, the outside of the guide rods 27 is slidably inserted into the inside of the circular cavity 26, and the circular cavity 26 is opened inside the threaded barrel 22.

[0027] Furthermore, the exposed part of the ratchet chain 3 is sleeved on the outside of the nut or bolt, and then the threaded barrel 22 is rotated, and the threaded barrel 22 drives the threaded column 1 21 and the threaded column 23 to move away from each other or move closer to each other, and the guide rod 27 and the circular cavity 26 are used in coordination to prevent the threaded column 1 21 and the threaded column 23 from rotating relative to each other. When the threaded column 1 21 and the threaded column 23 move away from each other, the exposed part of the ratchet chain 3 becomes less, that is, the exposed length of the ratchet chain 3 becomes shorter, and then the ratchet chain 3 tightly wraps the outside of the nut or bolt, so that the ratchet chain 3 can wrap nuts or bolts of different sizes, and has the advantages of an open-ended adjustable wrench, strong applicability, and more convenient to use.

[0028] The thread direction of the outside of the threaded column 1 21 is opposite to the thread direction of the outside of the threaded column 23 . The threaded column 1 21 and the threaded column 23 are both provided with a square cavity, and the inner wall of the square cavity is fixedly connected to the outside of the partition plate 25 .

[0029] Furthermore, both sides of the ratchet chain 3 pass through the square cavity, and the partition plate 25 separates the two sides of the ratchet chain 3 to prevent the two sides from rubbing against each other when the ratchet chain 3 rotates.

[0030] One end of the threaded column 1 21 away from the threaded column 23 is fixedly connected to one end of the support plate 210, and the other end of the support plate 210 is rotatably connected to both ends of the limiting roller 28. The side of the limiting roller 28 is provided with a limiting groove 29, and the groove wall of the limiting groove 29 is rollingly connected to the outside of the ratchet chain 3.

[0031] Furthermore, when the ratchet chain 3 is sleeved on the outside of the bolt, the side of the side wall of the limiting groove 29 is tightly attached to the outside of the ratchet chain 3. The limiting groove 29 prevents the ratchet chain 3 from sliding up and down when rotating, plays a certain guiding role for the ratchet chain 3, and prevents the ratchet chain 3 from rubbing against the end of the threaded column 21.

[0032] A guide roller 24 is installed at one end of the threaded column 23 away from the threaded column 1 21 , and the side of the guide roller 24 is rollingly connected to the outside of the ratchet chain 3 .

[0033] Furthermore, the guide roller 24 is used to prevent the ratchet chain 3 from rubbing against the end of the threaded column 23 .

[0034] The transmission assembly 1 includes: a gear 15, the outer portion of the gear 15 is meshed with the outer portion of the ratchet chain 3, the inner ring of the gear 15 is fixedly sleeved on the side of the rotating shaft 14, the top of the rotating shaft 14 is provided with a square groove 13, the side portion of the top end of the rotating shaft 14 is rotatably inserted into the hole wall of the through hole 12, and the through hole 12 is provided with the top of the top cover 11. The side portion of the bottom end of the rotating shaft 14 is rotatably inserted into the hole wall of the hole 17, the hole 17 is provided on the bottom surface of the inside of the installation box 19, and the top of the installation box 19 is fixedly connected to the bottom of the top cover 11.

[0035] Furthermore, after the ratchet chain 3 tightly wraps the outside of the nut or bolt, the output shaft of the handheld electric drill or other output device is inserted into the square groove 13 of the rotating shaft 14 to drive the rotating shaft 14 to rotate, and the rotating shaft 14 drives the gear 15 to rotate, the gear 15 drives the ratchet chain 3 to rotate, and the ratchet chain 3 drives the nut or bolt to rotate, thereby greatly improving the rotation efficiency.

[0036] Furthermore, a square groove 13 is formed on the top of the rotating shaft 14 because the output part of most electric wrenches is square, so as to facilitate connection with the output shaft of a socket or other power unit.

[0037] The side of the mounting box 19 is provided with a mounting hole 18, and the hole wall of the mounting hole 18 is fixedly sleeved on one end of the threaded column 23 near the guide roller 24. The inside of the mounting box 19 is fixedly connected to the outside of the limiting ring 16, and the gear 15 is located on the inner ring of the limiting ring 16.

[0038] Furthermore, the limiting ring 16 is used to fill the gap between the gear 15 and the inner wall of the installation box 19 to prevent the ratchet chain 3 from being separated from the gear 15 due to the gap being too large.

[0039] Working principle: When in use, the exposed part of the ratchet chain 3 is put on the outside of the nut or bolt, and then the threaded cylinder 22 is rotated. The threaded cylinder 22 drives the threaded column 1 21 and the threaded column 23 to move away from each other or move towards each other. When the threaded column 1 21 and the threaded column 23 move away from each other, the exposed part of the ratchet chain 3 becomes smaller, that is, the exposed length of the ratchet chain 3 becomes shorter, and the ratchet chain 3 tightly wraps the outside of the nut or bolt, which makes the ratchet chain 3 able to wrap nuts or bolts of different sizes, thereby improving the applicability of the device.

[0040] After the ratchet chain 3 tightly wraps the outside of the nut or bolt, the output shaft of the handheld electric drill or other output device is inserted into the square groove 13 of the rotating shaft 14 to drive the rotating shaft 14 to rotate, and the rotating shaft 14 drives the gear 15 to rotate, the gear 15 drives the ratchet chain 3 to rotate, and the ratchet chain 3 drives the nut or bolt to rotate, thereby greatly improving the rotation efficiency.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional quick bolt fastening device, characterized in that: Comprising a ratchet chain (3), an adjusting component (2) for adjusting the exposed length of the ratchet chain (3) is provided on the outside of the ratchet chain (3), and a transmission component (1) for driving the ratchet chain (3) to rotate is provided on one end of the adjusting component (2); The adjusting assembly (2) comprises: a threaded barrel (22), the inner wall of one end of the threaded barrel (22) being threadedly connected to the outside of the first threaded column (21), the inner wall of the other end of the threaded barrel (22) being threadedly connected to the outside of the second threaded column (23), one end of the first threaded column (21) close to the second threaded column (23) being fixedly connected to one end of a plurality of groups of guide rods (27), the outside of the guide rods (27) being slidably inserted into the inside of a circular cavity (26), and the circular cavity (26) being opened inside the threaded barrel (22).

2. A multifunctional quick bolt fastening device according to claim 1, characterized in that: The direction of the threads on the outside of the first threaded column (21) is opposite to the direction of the threads on the outside of the second threaded column (23); the first threaded column (21) and the second threaded column (23) are both provided with square cavities, and the inner walls of the square cavities are fixedly connected to the outside of the partition plate (25).

3. A multifunctional quick bolt fastening device according to claim 1, characterized in that: One end of the threaded column 1 (21) away from the threaded column 2 (23) is fixedly connected to one end of the support plate (210), and the other end of the support plate (210) is rotatably connected to both ends of a limiting roller (28). A limiting groove (29) is provided on the side of the limiting roller (28), and the groove wall of the limiting groove (29) is rollingly connected to the outside of the ratchet chain (3).

4. A multifunctional quick bolt fastening device according to claim 1, characterized in that: A guide roller (24) is installed at one end of the second threaded column (23) away from the first threaded column (21), and the side of the guide roller (24) is rollingly connected to the outside of the ratchet chain (3).

5. The multifunctional quick bolt fastening device according to claim 1, characterized in that: The transmission assembly (1) comprises: a gear (15), the outer portion of the gear (15) meshing with the outer portion of the ratchet chain (3), the inner ring of the gear (15) fixedly sleeved on the side of a rotating shaft (14), the top of the rotating shaft (14) being provided with a square groove (13), the side portion of the top end of the rotating shaft (14) being rotatably inserted into the hole wall of a through hole (12), and the top of the through hole (12) being provided with a top cover (11).

6. A multifunctional quick bolt fastening device according to claim 5, characterized in that: The side portion of the bottom end of the rotating shaft (14) is rotatably inserted into the wall of the hole (17); the hole (17) is formed on the bottom surface of the inside of the installation box (19); and the top of the installation box (19) is fixedly connected to the bottom of the top cover (11).

7. A multifunctional quick bolt fastening device according to claim 6, characterized in that: A mounting hole (18) is provided on the side of the mounting box (19), and the hole wall of the mounting hole (18) is fixedly sleeved on one end of the second threaded column (23) close to the guide roller (24).

8. A multifunctional quick bolt fastening device according to claim 7, characterized in that: The interior of the installation box (19) is fixedly connected to the exterior of the limiting ring (16), and the gear (15) is located on the inner ring of the limiting ring (16).

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