Bolt locking device

Abstract

The utility model discloses a bolt locking device which comprises a U-shaped frame, supporting blocks are installed on the two sides of the bottom end of the U-shaped frame respectively, bases are installed on the supporting blocks respectively, a transmission structure is installed on the U-shaped frame, and the transmission structure comprises a transmission belt and a locking structure. The transmission belt is arranged on the outer side of the U-shaped frame, the number of the locking structures is two, and the locking structures are distributed on the two sides with the center line of the transmission belt as the center. In the production process of an external hydraulic cylinder, a hydraulic cylinder outer barrel is placed in a U-shaped frame, at the moment, a transmission belt is manually driven to rotate in the forward direction, and through the meshing force between the transmission belt and gears, the gears on the two sides drive corresponding bolts to rotate inwards along corresponding threaded holes at the same time and drive corresponding circular plates to move inwards; and the bolts abut against the outer cylinder of the hydraulic cylinder, so that the outer cylinder of the hydraulic cylinder is locked and fixed in the U-shaped frame, and the locking efficiency of the bolts is high.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a bolt locking device. Background Technique

[0002] Bolt: a mechanical part, a cylindrical threaded fastener used with a nut, and the bolt can also be used for locking. A threaded hole matching the bolt is opened on the workbench, so that the bolt presses the workpiece against the workbench for locking and fixing. For example, in the production process of a hydraulic cylinder, the production parts of the hydraulic cylinder need to be locked and fixed by bolts and the assembly of the hydraulic cylinder is carried out. However, in the process of using the current bolt locking device, if it is a bolt locking structure on both sides, it is necessary to screw the bolts on both sides successively for locking, resulting in low efficiency. Content of the Utility Model

[0003] The purpose of the utility model is to provide a bolt locking device, which solves the problem that in the process of using the current bolt locking device, if it is a bolt locking structure on both sides, it is necessary to screw the bolts on both sides successively for locking, resulting in low efficiency.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: a bolt locking device, including a U-shaped frame, support blocks are respectively installed on both sides of the bottom end of the U-shaped frame, bases are respectively installed on the support blocks, a transmission structure is installed on the U-shaped frame, and the transmission structure includes a transmission belt and a locking structure;

[0005] The transmission belt is arranged outside the U-shaped frame, the number of the locking structures is two, the locking structures are distributed on both sides with the midline of the transmission belt as the center, and the locking structure includes a threaded hole, a bolt, a gear and a circular plate;

[0006] The threaded hole is opened on the U-shaped frame, the bolt is sleeved in the threaded hole, the gear is installed at one end of the bolt, the gear is meshed and connected in the transmission belt, and the circular plate is installed at the other end of the bolt.

[0007] Preferably, a rotating structure is installed on the circular plate, the rotating structure is arranged corresponding to the circular plate, and the rotating structure includes a rubber pad, a circular groove and a bearing;

[0008] The rubber pad is installed on the circular plate, the circular groove is opened on the circular plate, the bearing is installed in the circular groove, and the bolt is installed in the bearing.

[0009] Preferably, a groove is opened in the U-shaped frame, and a rubber plate is installed in the groove.

[0010] Preferably, a sliding structure is installed on the circular plate. The sliding structure is correspondingly arranged with the circular plate. The sliding structure includes a slider and a chute. The slider is installed on the circular plate, the chute is opened on the U-shaped frame, and the slider is slidably connected in the chute.

[0011] Preferably, the rubber plate is installed in the groove through a clamping structure. The number of the clamping structures is not less than three. The clamping structures are equidistantly distributed between the rubber plate and the groove. The clamping structure includes a clamping block, an elastic member and a clamping groove;

[0012] The clamping block is installed on the rubber plate, the elastic member is installed in the clamping block, the clamping groove is opened in the groove, the rubber plate is placed in the groove, and the clamping block is clamped in the clamping groove.

[0013] Preferably, the gear is installed on the bolt through a connecting structure. The connecting structure is correspondingly arranged with the gear. The connecting structure includes a mounting hole, a screw and a nut;

[0014] The mounting hole is opened on the gear, the screw is installed on the bolt, the mounting hole is sleeved on the screw, and the nut is sleeved on the screw.

[0015] Compared with the prior art, the beneficial effect of the present utility model is that: this bolt locking device has the following advantages compared with the traditional technology:

[0016] During the production of an external hydraulic cylinder, the outer cylinder of the hydraulic cylinder is placed in the U-shaped frame. At this time, manually drive the transmission belt to rotate forward, then through the meshing force between the transmission belt and the gear, the two gears on both sides drive the corresponding bolts to rotate inward along the corresponding threaded holes at the same time, and drive the corresponding circular plates to move inward, and press against the outer cylinder of the hydraulic cylinder, so that the outer cylinder of the hydraulic cylinder is locked and fixed in the U-shaped frame, and the bolt locking efficiency is fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is Figure 1 a schematic structural diagram of the circular plate, circular groove and bearing in

[0019] Figure 3 is Figure 1 a schematic structural diagram of the gear and mounting hole in

[0020] Figure 4 is Figure 1 a schematic structural diagram of A in

[0021] In the figure: 1. U-shaped frame, 2. Support block, 3. Base, 4. Transmission structure, 401. Transmission belt, 402. Locking structure, 403. Threaded hole, 404. Bolt, 405. Gear, 406. Round plate, 5. Groove, 6. Rubber plate, 7. Rotating structure, 8. Rubber pad, 9. Round groove, 10. Bearing, 11. Sliding structure, 12. Slide block, 13. Slide groove, 14. Connection structure, 15. Mounting hole, 16. Screw, 17. Nut, 18. Clamping structure, 19. Clamping block, 20. Elastic member, 21. Card slot. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Through the personnel in the art, the components in this case are connected in sequence. For the specific connection and operation sequence, reference should be made to the following working principle. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process.

[0024] During the use of the current bolt locking device, if it is a bolt locking structure on both sides, it is necessary to screw the bolts on both sides successively for locking, resulting in low efficiency.

[0025] In view of this, the present invention provides a bolt locking device. During the production of an external hydraulic cylinder, the outer cylinder of the hydraulic cylinder is placed in the U-shaped frame. At this time, manually drive the transmission belt to rotate forward, then through the meshing force between the transmission belt and the gear, the two gears drive the corresponding bolts to rotate inward along the corresponding threaded holes at the same time, and drive the corresponding round plates to move inward and press against the outer cylinder of the hydraulic cylinder, so that the outer cylinder of the hydraulic cylinder is locked and fixed in the U-shaped frame, making the bolt locking efficient.

[0026] Please refer to Figures 1-4 , the present invention provides a technical solution: a bolt locking device, including a U-shaped frame 1. Support blocks 2 are respectively installed on both sides of the bottom end of the U-shaped frame 1. Bases 3 are respectively installed on the support blocks 2. The base 3 supports the U-shaped frame 1 through the support block 2. A transmission structure 4 is installed on the U-shaped frame 1. The transmission structure 4 includes a transmission belt 401 and a locking structure 402;

[0027] The transmission belt 401 is arranged on the outer side of the U-shaped frame 1. The transmission belt 401 is a gear belt. The inner ring is made of a metal material, and the outer ring is made of a rubber material. The number of locking structures 402 is two. The locking structures 402 are distributed on both sides with the center line of the transmission belt 401 as the center. The locking structure 402 includes a threaded hole 403, a bolt 404, a gear 405 and a round plate 406;

[0028] The threaded hole 403 is opened on the U-shaped frame 1. The spiral directions of the threaded holes 403 on both sides are the same. The bolt 404 is sleeved in the threaded hole 403. The gear 405 is installed at one end of the bolt 404. The gear 405 is meshed and connected inside the transmission belt 401. The teeth on the gear 405 are meshed and connected with the teeth inside the transmission belt 401. The round plate 406 is installed at the other end of the bolt 404. During the production of the external hydraulic cylinder, the outer cylinder of the hydraulic cylinder is placed inside the U-shaped frame 1. At this time, manually drive the transmission belt 401 to rotate forward. Then, through the meshing force between the transmission belt 401 and the gear 405, the two side gears 405 drive the corresponding bolts 404 to rotate inward along the corresponding threaded holes 403 at the same time, and drive the corresponding round plates 406 to move inward and press tightly against the outer cylinder of the hydraulic cylinder, so that the outer cylinder of the hydraulic cylinder is locked and fixed inside the U-shaped frame 1.

[0029] A rotating structure 7 is installed on the round plate 406. The rotating structure 7 is correspondingly arranged with the round plate 406. The rotating structure 7 includes a rubber pad 8, a round groove 9 and a bearing 10;

[0030] The rubber pad 8 is installed on the round plate 406. The round groove 9 is opened on the round plate 406. The bearing 10 is installed in the round groove 9. The bolt 404 is installed in the bearing 10;

[0031] A sliding structure 11 is installed on the round plate 406. The sliding structure 11 is correspondingly arranged with the round plate 406. The sliding structure 11 includes a slider 12 and a chute 13. The slider 12 is installed on the round plate 406. The chute 13 is opened on the U-shaped frame 1. The slider 12 is slidably connected in the chute 13. While the bolt 404 moves into the U-shaped frame 1, it rotates on the round plate 406 through the bearing 10, so that the round plate 406 drives the slider 12 to slide inward along the chute 13, and the round plate 406 drives the rubber pad 8 to press tightly against the outer cylinder of the hydraulic cylinder for locking and fixing.

[0032] A groove 5 is opened inside the U-shaped frame 1. A rubber plate 6 is installed inside the groove 5;

[0033] The rubber plate 6 is installed inside the groove 5 through a clamping structure 18. The number of clamping structures 18 is not less than three. The clamping structures 18 are equidistantly distributed between the rubber plate 6 and the groove 5. The clamping structure 18 includes a clamping block 19, an elastic member 20 and a clamping groove 21;

[0034] The clamping block 19 is installed on the rubber plate 6, and the elastic member 20 is installed inside the clamping block 19. Both the elastic member 20 and the clamping block 19 are made of steel sheets. The elastic member 20 increases the elasticity of the clamping block 19. The card slot 21 is opened in the groove 5, the rubber plate 6 is placed in the groove 5, and the clamping block 19 is clamped in the card slot 21. The rubber plate 6 is stuffed into the groove 5, and the clamping block 19 is snapped into the card slot 21, so that the rubber plate 6 is installed in the groove 5. When locking the outer cylinder of the hydraulic cylinder, the outer cylinder of the hydraulic cylinder presses against the rubber plate 6, and due to the softness of the rubber plate 6 and the rubber pad 8, it is prevented from leaving lock marks on the surface when locking the outer cylinder of the hydraulic cylinder.

[0035] The gear 405 is installed on the bolt 404 through the connecting structure 14. The connecting structure 14 is correspondingly arranged with the gear 405. The connecting structure 14 includes a mounting hole 15, a screw 16 and a nut 17.

[0036] The mounting hole 15 is opened on the gear 405. The aperture of the mounting hole 15 is smaller than the outer diameter of the bolt 404. The screw 16 is installed on the bolt 404. The mounting hole 15 is sleeved on the screw 16, and the nut 17 is sleeved on the screw 16. During installation, the mounting hole on the gear 405 is sleeved on the screw 16, and then the nut 17 is screwed onto the screw 16 to fix the gear 405 against the bolt 404, and then the transmission belt 401 is meshed and connected to the gear 405.

[0037] When using this bolt locking device, during installation, first, the mounting hole on the gear 405 is sleeved on the screw 16, then the nut 17 is screwed onto the screw 16 to fix the gear 405 against the bolt 404, and then the transmission belt 401 is meshed and connected to the gear 405. The rubber plate 6 is stuffed into the groove 5, and the clamping block 19 is snapped into the card slot 21, so that the rubber plate 6 is installed in the groove 5. During the production of the external hydraulic cylinder, the outer cylinder of the hydraulic cylinder is placed in the U-shaped frame 1. At this time, manually drive the transmission belt 401 to rotate forward, then through the meshing force between the transmission belt 401 and the gear 405, the two side gears 405 drive the corresponding bolts 404 to rotate inward along the corresponding threaded holes 403 at the same time, and drive the corresponding round plates 406 to move inward and press against the outer cylinder of the hydraulic cylinder, so that the outer cylinder of the hydraulic cylinder is locked and fixed in the U-shaped frame 1. When the bolt 404 moves into the U-shaped frame 1, it rotates on the round plate 406 through the bearing 10, and the round plate 406 drives the slider 12 to slide inward along the chute 13, and the round plate 406 drives the rubber pad 8 to press against the outer cylinder of the hydraulic cylinder for locking and fixing. And when locking the outer cylinder of the hydraulic cylinder, the outer cylinder of the hydraulic cylinder presses against the rubber plate 6, and due to the softness of the rubber plate 6 and the rubber pad 8, it is prevented from leaving lock marks on the surface when locking the outer cylinder of the hydraulic cylinder.

[0038] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A bolt locking device, comprising a U-shaped frame (1), characterized in that: On both sides of the bottom end of the U-shaped frame (1), support blocks (2) are respectively installed. On the support blocks (2), bases (3) are respectively installed. A transmission structure (4) is installed on the U-shaped frame (1). The transmission structure (4) includes a transmission belt (401) and a locking structure (402). The transmission belt (401) is arranged outside the U-shaped frame (1). The number of the locking structures (402) is two. The locking structures (402) are distributed on both sides with the midline of the transmission belt (401) as the center. The locking structure (402) includes a threaded hole (403), a bolt (404), a gear (405) and a round plate (406). The threaded hole (403) is opened on the U-shaped frame (1). The bolt (404) is sleeved in the threaded hole (403). The gear (405) is installed at one end of the bolt (404). The gear (405) is meshed and connected inside the transmission belt (401). The round plate (406) is installed at the other end of the bolt (404).

2. The bolt locking device according to claim 1, characterized in that: A rotating structure (7) is installed on the round plate (406). The rotating structure (7) is arranged corresponding to the round plate (406). The rotating structure (7) includes a rubber pad (8), a round groove (9) and a bearing (10). The rubber pad (8) is installed on the round plate (406). The round groove (9) is opened on the round plate (406). The bearing (10) is installed in the round groove (9). The bolt (404) is installed in the bearing (10).

3. A bolt locking device according to claim 1, characterized in that: A groove (5) is opened inside the U-shaped frame (1). A rubber plate (6) is installed in the groove (5).

4. A bolt locking device according to claim 1, characterized in that: A sliding structure (11) is installed on the round plate (406). The sliding structure (11) is arranged corresponding to the round plate (406). The sliding structure (11) includes a slider (12) and a sliding groove (13). The slider (12) is installed on the round plate (406). The sliding groove (13) is opened on the U-shaped frame (1). The slider (12) is slidably connected in the sliding groove (13).

5. The bolt locking device according to claim 3, characterized in that: The rubber plate (6) is installed in the groove (5) through a clamping structure (18). The number of the clamping structures (18) is not less than three. The clamping structures (18) are equidistantly distributed between the rubber plate (6) and the groove (5). The clamping structure (18) includes a clamping block (19), an elastic member (20) and a clamping groove (21). The clamping block (19) is installed on the rubber plate (6). The elastic member (20) is installed inside the clamping block (19). The clamping groove (21) is opened in the groove (5). The rubber plate (6) is placed in the groove (5). The clamping block (19) is clamped in the clamping groove (21).

6. A bolt locking device according to claim 1, characterized in that: The gear (405) is installed on the bolt (404) through a connecting structure (14). The connecting structure (14) is arranged corresponding to the gear (405). The connecting structure (14) includes a mounting hole (15), a screw (16) and a nut (17). The mounting hole (15) is formed in the gear (405), the screw (16) is mounted on the bolt (404), the mounting hole (15) is sleeved on the screw (16), and the nut (17) is sleeved on the screw (16).

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