A handheld automatic bolt tightening device

Abstract

This utility model discloses a handheld automatic bolt tightening device, including a first support plate and a handle. A storage cylinder is provided on the side of the first support plate, and a first motor is installed inside the storage cylinder. A transmission column is provided at the output end of the first motor. A positioning groove and a first annular groove are formed on the end of the transmission column away from the first motor. The positioning groove is a regular hexagon, and six limiting holes are evenly formed on the inner wall of the positioning groove. A positioning plate is slidably connected within the limiting holes. A transmission part is provided within the first annular groove. Compared with existing bolt tightening devices, this application can tighten bolts of different sizes by changing the position of the positioning plate. The distance between the first support plate and the handle can be adjusted, meaning the length of the tightening device is adjustable. This improves the applicability of the tightening device and increases work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bolt fastening device technology, and in particular to a handheld automatic bolt fastening device for power distribution. Background Technology

[0002] Bolt tightening is a crucial part of the maintenance and installation of traditional mechanical equipment. Its accuracy and reliability directly affect the safety performance and operating efficiency of the equipment. Electric wrenches are a commonly used installation and disassembly tool. Although existing electric wrenches can be used normally, they also have some shortcomings. Electric wrenches can generally only tighten bolts of one size. If the bolt size is different, a different model of electric wrench needs to be replaced. Thus, the applicability of electric wrenches is low, which affects the tightening efficiency of bolts. Summary of the Invention

[0003] The purpose of this utility model is to provide a handheld automatic bolt tightening device for power distribution in order to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A handheld automatic bolt tightening device includes a first support plate and a handle. A storage cylinder is provided on the side of the first support plate, and a first motor is installed inside the storage cylinder. A transmission column is provided at the output end of the first motor. A positioning groove and a first annular groove are formed on the end of the transmission column away from the first motor. The positioning groove is a regular hexagon, and six limiting holes are evenly formed on the inner wall of the positioning groove. A positioning plate is slidably connected within the limiting holes. A transmission part is provided in the first annular groove for controlling the sliding of the positioning plate within the limiting holes. A first limiting rod is provided at one end of the first support plate, and a first sliding groove is provided at one end of the handle. Multiple second sliding grooves are evenly formed on the inner wall of the storage cylinder, and rollers are rotatably connected within the second sliding grooves. The transmission column and the rollers abut against each other. The first limiting rod and the first sliding groove are slidably connected. A length adjustment mechanism is provided between the first support plate and the handle for adjusting the distance between them.

[0006] Preferably, the transmission part includes a second support plate disposed in the first annular groove, a first transmission rod rotatably connected to the second support plate, the outer side of the first transmission rod being threaded, a transmission cylinder disposed on one side of the positioning plate, the transmission cylinder being threaded groove disposed inside, the first transmission rod and the threaded groove being threadedly connected, and a transmission mechanism disposed in the first annular groove for driving the rotation of the first transmission rod.

[0007] Preferably, the transmission mechanism includes an annular bevel gear, an annular protrusion is provided on the outer side of the annular bevel gear, a second annular groove is provided on the inner wall of the first annular groove, the annular protrusion and the second annular groove are rotatably connected, and a driven bevel gear is provided at one end of the first transmission rod, the annular bevel gear and the driven bevel gear are meshed together.

[0008] Preferably, a worm gear is provided on one of the first transmission rods, a storage groove is provided on the inner wall of the first annular groove, a second motor is provided in the storage groove, a second transmission rod is provided at the output end of the second motor, a worm is provided on the second transmission rod, and the worm and the worm gear are meshed and connected.

[0009] Preferably, the inner wall of the limiting hole is provided with a second limiting plate, and the side of the positioning plate is provided with a second limiting rod, the second limiting rod passing through the second limiting plate, and the second limiting rod and the second limiting plate being slidably connected.

[0010] Preferably, the length adjustment mechanism includes a second limiting seat disposed on the side of the first support plate, a third limiting seat disposed on the side of the handle, a first sliding rod disposed on the second limiting seat, the first sliding rod and the third limiting seat being slidably connected, a transmission gear plate disposed on one side of the first sliding rod, the first limiting seat disposed on the side of the third limiting seat, a first rotating shaft rotatably connected to the first limiting seat, a transmission gear disposed at one end of the first rotating shaft, and the transmission gear and the transmission gear plate being meshed.

[0011] Preferably, a knob is provided at one end of the first rotating shaft, and a plurality of slots are evenly distributed on the side of the knob. A fourth limiting seat is provided on the side of the first limiting seat, and a spring is provided on the side of the fourth limiting seat. A first limiting plate is provided at one end of the spring, and a locking block adapted to the slot is provided on the side of the first limiting plate.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] Compared with existing bolt fastening devices, this application can achieve the fastening of bolts of different sizes by changing the position of the positioning plate. The distance between the first support plate and the handle can be adjusted, that is, the length of the fastening device can be adjusted, thus improving the applicability of the fastening device and improving work efficiency. Attached Figure Description

[0014] Figure 1 A schematic diagram of the fastening device structure provided according to an embodiment of the present invention is shown;

[0015] Figure 2 An exploded structural diagram of the fastening device provided according to an embodiment of the present invention is shown;

[0016] Figure 3 A schematic diagram of a knob structure according to an embodiment of the present invention is shown;

[0017] Figure 4 A schematic diagram of the exploded structure of the storage tube according to an embodiment of the present invention is shown;

[0018] Figure 5 A cross-sectional view of the storage tube provided according to an embodiment of the present invention is shown.

[0019] Figure 6 A schematic diagram of a first motor structure according to an embodiment of the present invention is shown.

[0020] Figure 7 A schematic diagram of the positioning plate structure provided according to an embodiment of the present invention is shown.

[0021] Figure 8 A schematic diagram of an annular bevel gear structure provided according to an embodiment of the present invention is shown.

[0022] Legend: 1. First support plate; 2. Handle; 3. First slide groove; 4. First limiting rod; 5. First slide bar; 6. First limiting seat; 7. Transmission gear plate; 8. Second limiting seat; 9. Third limiting seat; 10. First rotating shaft; 11. Transmission gear; 12. Knob; 13. Fourth limiting seat; 14. Spring; 15. First limiting plate; 16. Locking block; 17. Locking groove; 18. Storage cylinder; 19. Second slide groove; 20. Roller; 21. First motor; 22. Transmission column; 23. First annular groove; 24. Second annular groove; 25. Annular bevel gear; 26. Annular protrusion; 27. Limiting hole; 28. Second limiting plate; 29. ​​Positioning plate; 30. Second limiting rod; 31. Transmission cylinder; 32. Threaded groove; 33. Second support plate; 34. First transmission rod; 35. Driven bevel gear; 36. Worm gear; 37. Worm; 38. Second transmission rod; 39. Second motor; 40. Storage slot; 41. Positioning groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-8 This utility model provides a technical solution:

[0025] A handheld automatic bolt tightening device includes a first support plate 1 and a handle 2. A storage tube 18 is provided on the side of the first support plate 1. A first motor 21 is installed inside the storage tube 18. A transmission column 22 is provided at the output end of the first motor 21. A positioning groove 41 and a first annular groove 23 are formed on the end of the transmission column 22 away from the first motor 21. The positioning groove 41 is a regular hexagon. Six limiting holes 27 are evenly formed on the inner wall of the positioning groove 41. A positioning plate 29 is slidably connected within the limiting holes 27. The first annular groove 23... A transmission part is provided in the groove 23 to control the sliding of the positioning plate 29 in the limiting hole 27. A first limiting rod 4 is provided at one end of the first support plate 1, and a first sliding groove 3 is provided at one end of the handle 2. A plurality of second sliding grooves 19 are evenly provided on the inner wall of the storage cylinder 18. A roller 20 is rotatably connected in the second sliding groove 19. The transmission column 22 and the roller 20 abut against each other. The first limiting rod 4 and the first sliding groove 3 are slidably connected. A length adjustment mechanism is provided between the first support plate 1 and the handle 2 to adjust the distance between the first support plate 1 and the handle 2.

[0026] Specifically, such as Figure 4 , Figure 5 and Figure 6 As shown, the transmission unit includes a second support plate 33 disposed within the first annular groove 23. A first transmission rod 34 is rotatably connected to the second support plate 33. The outer side of the first transmission rod 34 is threaded. A transmission cylinder 31 is disposed on one side of the positioning plate 29. A threaded groove 32 is disposed within the transmission cylinder 31. The first transmission rod 34 and the threaded groove 32 are threadedly connected. A transmission mechanism is disposed within the first annular groove 23 to drive the rotation of the first transmission rod 34. The transmission mechanism includes an annular bevel gear 25. An annular protrusion 26 is disposed on the outer side of the annular bevel gear 25. A second annular groove 24 is disposed on the inner wall of the first annular groove 23. The annular protrusion 26 and the second annular groove 24 are rotatably connected. A driven bevel gear 35 is disposed at one end of the first transmission rod 34. The annular bevel gear 25 and the driven bevel gear 35 are meshed together.

[0027] Specifically, such as Figure 7 and Figure 8 As shown, a worm gear 36 is provided on a first transmission rod 34, and a storage groove 40 is provided on the inner wall of the first annular groove 23. A second motor 39 is provided in the storage groove 40. A second transmission rod 38 is provided at the output end of the second motor 39. A worm 37 is provided on the second transmission rod 38. The worm 37 and the worm gear 36 are meshed and connected. A second limiting plate 28 is provided on the inner wall of the limiting hole 27. A second limiting rod 30 is provided on the side of the positioning plate 29. The second limiting rod 30 passes through the second limiting plate 28 and is slidably connected to the second limiting plate 28.

[0028] Specifically, such as Figure 2 and Figure 3As shown, the length adjustment mechanism includes a second limiting seat 8 on the side of the first support plate 1, a third limiting seat 9 on the side of the handle 2, a first sliding rod 5 on the second limiting seat 8, the first sliding rod 5 and the third limiting seat 9 being slidably connected, a transmission gear plate 7 on one side of the first sliding rod 5, a first limiting seat 6 on the side of the third limiting seat 9, a first rotating shaft 10 rotatably connected to the first limiting seat 6, a transmission gear 11 on one end of the first rotating shaft 10, the transmission gear 11 and the transmission gear plate 7 being meshed, a knob 12 on one end of the first rotating shaft 10, a plurality of slots 17 evenly distributed on the side of the knob 12, a fourth limiting seat 13 on the side of the first limiting seat 6, a spring 14 on the side of the fourth limiting seat 13, a first limiting plate 15 on one end of the spring 14, and a locking block 16 adapted to the slots 17 on the side of the first limiting plate 15.

[0029] In summary, the handheld automatic bolt tightening device provided in this embodiment can start the second motor 39 when it is necessary to tighten nuts of different sizes. The second motor 39 drives the worm gear 37 to rotate, the worm gear 37 drives the worm wheel 36 to rotate, and the worm wheel 36 drives the driven bevel gear 35 to rotate through the first transmission rod 34. The driven bevel gear 35 drives the ring bevel gear 25 to rotate, and then the ring bevel gear 25 drives multiple first transmission rods 34 to rotate through the driven bevel gear 35. Under the action of the transmission cylinder 31, the positioning plate 29 slides out of the limiting hole 27, and then multiple positioning plates 29 form bolt clamps of different sizes, realizing the tightening of bolts of different sizes.

[0030] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A handheld automatic bolt tightening device, comprising a first support plate (1) and a handle (2), characterized in that, A storage tube (18) is provided on the side of the first support plate (1). A first motor (21) is provided inside the storage tube (18). A transmission column (22) is provided at the output end of the first motor (21). A positioning groove (41) and a first annular groove (23) are provided on the end of the transmission column (22) away from the first motor (21). The positioning groove (41) is a regular hexagon. Six limiting holes (27) are evenly provided on the inner wall of the positioning groove (41). A positioning plate (29) is slidably connected in the limiting holes (27). A transmission part is provided in the first annular groove (23) for controlling the positioning. The plate (29) slides in the limiting hole (27). One end of the first support plate (1) is provided with a first limiting rod (4). One end of the handle (2) is provided with a first sliding groove (3). The inner wall of the storage tube (18) is evenly provided with a plurality of second sliding grooves (19). A roller (20) is rotatably connected in the second sliding groove (19). The transmission column (22) and the roller (20) abut against each other. The first limiting rod (4) and the first sliding groove (3) are slidably connected. A length adjustment mechanism is provided between the first support plate (1) and the handle (2) to adjust the distance between the first support plate (1) and the handle (2).

2. The handheld automatic bolt tightening device according to claim 1, characterized in that, The transmission unit includes a second support plate (33) disposed in the first annular groove (23), a first transmission rod (34) rotatably connected to the second support plate (33), the outer side of the first transmission rod (34) is threaded, a transmission cylinder (31) is disposed on one side of the positioning plate (29), a threaded groove (32) is disposed in the transmission cylinder (31), the first transmission rod (34) and the threaded groove (32) are threadedly connected, and a transmission mechanism is disposed in the first annular groove (23) for driving the rotation of the first transmission rod (34).

3. The handheld automatic bolt tightening device according to claim 2, characterized in that, The transmission mechanism includes an annular bevel gear (25), an annular protrusion (26) is provided on the outer side of the annular bevel gear (25), a second annular groove (24) is provided on the inner wall of the first annular groove (23), the annular protrusion (26) and the second annular groove (24) are rotatably connected, and a driven bevel gear (35) is provided at one end of the first transmission rod (34), the annular bevel gear (25) and the driven bevel gear (35) are meshed together.

4. The handheld automatic bolt tightening device according to claim 3, characterized in that, A worm gear (36) is provided on the first transmission rod (34), and a storage groove (40) is provided on the inner wall of the first annular groove (23). A second motor (39) is provided in the storage groove (40), and a second transmission rod (38) is provided at the output end of the second motor (39). A worm (37) is provided on the second transmission rod (38), and the worm (37) and the worm gear (36) are meshed and connected.

5. The handheld automatic bolt tightening device according to claim 4, characterized in that, The inner wall of the limiting hole (27) is provided with a second limiting plate (28), and the side of the positioning plate (29) is provided with a second limiting rod (30). The second limiting rod (30) passes through the second limiting plate (28), and the second limiting rod (30) and the second limiting plate (28) are slidably connected.

6. The handheld automatic bolt tightening device according to claim 5, characterized in that, The length adjustment mechanism includes a second limiting seat (8) on the side of the first support plate (1), a third limiting seat (9) on the side of the handle (2), a first sliding rod (5) on the second limiting seat (8), the first sliding rod (5) and the third limiting seat (9) being slidably connected, a transmission gear plate (7) on one side of the first sliding rod (5), a first limiting seat (6) on the side of the third limiting seat (9), a first rotating shaft (10) rotatably connected to the first limiting seat (6), a transmission gear (11) on one end of the first rotating shaft (10), and the transmission gear (11) and the transmission gear plate (7) being meshed.

7. A handheld automatic bolt tightening device according to claim 6, characterized in that, A knob (12) is provided at one end of the first rotating shaft (10). Multiple slots (17) are evenly distributed on the side of the knob (12). A fourth limiting seat (13) is provided on the side of the first limiting seat (6). A spring (14) is provided on the side of the fourth limiting seat (13). A first limiting plate (15) is provided at one end of the spring (14). A locking block (16) adapted to the slot (17) is provided on the side of the first limiting plate (15).

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