Coaxial bolt and nut adjusting mechanism

Abstract

The utility model discloses a coaxial bolt and nut adjusting mechanism which comprises a bolt head, a bolt rod is connected to the lower portion of the bolt head, a nut body is arranged on the outer side of the bolt rod in a sleeved mode, a clamping groove is formed in the upper portion of the interior of the bolt head, a clamping plate is installed on the nut body, a positioning plate is arranged on the outer side of the nut body, and the positioning plate is connected with the clamping groove. A reserved hole is formed in the positioning plate, and positioning holes are formed in the two sides of the reserved hole. Limiting blocks are arranged on the two sides of the lower portion of the positioning screw, elastic blocks are connected to the inner sides of the limiting blocks, and telescopic springs are connected to the inner sides of the elastic blocks. Compared with an existing device, the coaxial bolt and nut adjusting mechanism has the advantages that a positioning screw can penetrate through a positioning hole to be fixedly connected with a fixed object, so that the position of a nut body can be fixed, a bolt head is subsequently screwed through a screwdriver, and the relative position of a bolt and the nut can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of adjusting mechanisms, in particular to a coaxial bolt and nut adjusting mechanism. Background Technique

[0002] Bolts and nuts are parts used for fastening, and are essential components in all manufacturing machinery. A nut is a fastener with internal threads that is used in conjunction with a bolt, and is a mechanical part with internal threads that is used in conjunction with a screw rod to transmit motion or power. A coaxial bolt and nut adjusting mechanism is required during the installation of coaxial bolts and nuts.

[0003] Chinese Patent with the authorization publication number CN207139225U discloses a coaxial nut and bolt adjusting mechanism. A plurality of gears are arranged on a mounting plate. These gears include a large gear and a small gear. The small gear realizes the meshing transmission of torque with the large gear through several meshing gears. The head of the first tightening gun is sleeved on a transmission column, the transmission column is sleeved with the small gear, the first tightening gun drives the transmission column to rotate, and then transmits the torque through the small gear. There is a hexagonal hole in the middle of the large gear for placing the nut. The torque of the first tightening gun is transmitted to the nut, the bolt is sleeved into the nut, and the second tightening gun is sleeved on the bolt for tightening the bolt.

[0004] Although the above-mentioned coaxial nut and bolt adjusting mechanism controls the tightening of the bolt and nut respectively through a mechanical structure, and controls the locking force by the torque detection function of the tightening gun, and uses a PLC for precise control. After the bolt is locked to the specified position, the nut is locked, shortening the beat. However, the above device requires multiple tools during the fixing process of the nut, and the instruments required during the adjustment process are too complex, resulting in high usage costs. Therefore, we propose a coaxial bolt and nut adjusting mechanism. Summary of the Invention

[0005] The purpose of the utility model is to provide a coaxial bolt and nut adjusting mechanism to solve the problem that the above background technique proposes that due to the need to use multiple tools during the fixing process of the nut by the device, and the instruments required during the adjustment process are too complex, resulting in high usage costs.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A coaxial bolt and nut adjusting mechanism, including:

[0007] A bolt head, a bolt rod is connected below the bolt head, and a nut body is sleeved outside the bolt rod. A card slot is arranged above the inside of the bolt head. A card plate is installed on the nut body. A positioning plate is arranged outside the nut body, and a reserved hole is opened inside the positioning plate. Positioning holes are arranged on both sides of the reserved hole;

[0008] A positioning screw is installed inside the positioning hole. On both sides below the positioning screw, there are limit blocks, and elastic blocks are connected to the inner sides of the limit blocks, and telescopic springs are connected to the inner sides of the elastic blocks.

[0009] Preferably, the bolt rod is fixedly connected to the bolt head, and the card slot coincides with the vertical center line of the bolt head.

[0010] Preferably, the nut body passes through the inside of the positioning plate through a reserved hole, and the positioning plate is mutually engaged with the nut body through a clamping plate.

[0011] Preferably, the positioning screw passes through the inside of the positioning plate through the positioning hole, and the positioning screws are symmetrically distributed about the vertical center line of the positioning plate.

[0012] Preferably, the limit block is perpendicular to the positioning screw, and the limit block forms a telescopic structure between the elastic block and the telescopic spring.

[0013] Preferably, the limit block is further provided with:

[0014] A fixing block is arranged below the limit block, and a limit rotating plate is installed on the outer side of the fixing block.

[0015] Preferably, the limit rotating plate forms a rotating structure with the fixing block through a rotating shaft, and the limit rotating plate is perpendicular to the limit block.

[0016] Compared with the prior art, the present utility model provides a coaxial bolt and nut adjusting mechanism, which has the following beneficial effects:

[0017] The present utility model can pass the positioning screw through the positioning hole to connect and fix with the fixed item, so as to fix the position of the nut body. Subsequently, by turning the bolt head with a screwdriver, the relative position of the bolt and the nut can be adjusted, avoiding the problems that multiple tools are required in the process of fixing the nut by the device, and the instruments required in the adjustment process are too complex, resulting in high use costs. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 is a schematic diagram of the structure of the nut body and the positioning plate of the present utility model;

[0020] Figure 3 is a schematic top view structure diagram of the bolt head of the present utility model;

[0021] Figure 4 is a schematic diagram of the internal structure of the nut body of the present utility model.

[0022] In the figure: 1. Bolt head; 2. Bolt rod; 3. Nut body; 4. Positioning plate; 5. Reserved hole; 6. Positioning hole; 7. Clamping plate; 8. Positioning screw; 9. Limiting block; 10. Elastic block; 11. Telescopic spring; 12. Fixed block; 13. Limiting rotating plate; 14. Card slot. Detailed implementation manner

[0023] 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.

[0024] Please refer to Figures 1-3 , a coaxial bolt and nut adjustment mechanism, comprising: a bolt head 1, a bolt rod 2 is connected below the bolt head 1, and a nut body 3 is sleeved outside the bolt rod 2. A card slot 14 is arranged above the inside of the bolt head 1. The bolt rod 2 is fixedly connected to the bolt head 1, and the card slot 14 coincides with the vertical center line of the bolt head 1; the cooperation of the bolt rod 2 with the bolt head 1 and the card slot 14 facilitates the installation of the bolt; a clamping plate 7 is installed on the nut body 3, a positioning plate 4 is arranged outside the nut body 3, and a reserved hole 5 is opened inside the positioning plate 4. Positioning holes 6 are arranged on both sides of the reserved hole 5; the nut body 3 passes through the inside of the positioning plate 4 through the reserved hole 5, and the positioning plate 4 is mutually clamped with the nut body 3 through the clamping plate 7; the positioning plate 4 can be installed outside the nut body 3 through the reserved hole 5.

[0025] Please refer to Figure 1 , 2And 4, a coaxial bolt and nut adjusting mechanism, comprising: a positioning screw 8, which is installed inside the positioning hole 6, the positioning screw 8 passes through the inside of the positioning plate 4 through the positioning hole 6, and the positioning screws 8 are symmetrically distributed about the vertical center line of the positioning plate 4; the positioning screw 8 can pass through the positioning hole 6 to be connected and fixed to a fixed object, so as to fix the position of the nut body 3, and then by turning the bolt head 1 with a screwdriver, the relative position of the bolt and the nut can be adjusted; on both sides below the positioning screw 8, there are provided limit blocks 9, and an elastic block 10 is connected to the inner side of the limit block 9, and a telescopic spring 11 is connected to the inner side of the elastic block 10; the limit block 9 is perpendicular to the positioning screw 8, and the limit block 9 forms a telescopic structure with the elastic block 10 and the telescopic spring 11; the telescopic spring 11 can drive the limit block 9 and the elastic block 10 to perform horizontal transmission, so as to limit the positioning screw 8 through the limit block 9 to prevent it from loosening; a fixed block 12, which is arranged below the limit block 9, and a limit rotating plate 13 is installed on the outer side of the fixed block 12; the limit rotating plate 13 forms a rotating structure with the fixed block 12 through a rotating shaft, and the limit rotating plate 13 is perpendicular to the limit block 9; the limit rotating plate 13 can rotate relative to the fixed block 12, and the rotated limit rotating plate 13 can limit the limit block 9, so as to facilitate the installation of the positioning screw 8.

[0026] Working principle: When using this coaxial bolt and nut adjusting mechanism, first install the nut body 3. The cooperation of the bolt rod 2, the bolt head 1 and the card slot 14 facilitates the installation of the bolt. The positioning plate 4 can be installed outside the nut body 3 through the reserved hole 5, and then the positioning screw 8 is passed through the positioning hole 6 to be connected and fixed to a fixed object, so as to fix the position of the nut body 3; then rotate the limit rotating plate 13, turn the limit rotating plate 13 under the fixed block 12, and the telescopic spring 11 can drive the limit block 9 and the elastic block 10 to perform horizontal transmission, so as to limit the positioning screw 8 through the limit block 9 to prevent it from loosening; finally, pass the bolt rod 2 through the screw hole and the nut body 3, and then the relative adjustment and installation between the bolt and the nut can be carried out through the cooperation of the screwdriver and the card slot 14. This is the working principle of this coaxial bolt and nut adjusting mechanism.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coaxial bolt and nut adjustment mechanism, characterized in that Including: A bolt head (1), a bolt rod (2) is connected below the bolt head (1), and a nut body (3) is sleeved outside the bolt rod (2). Above the bolt head (1), a clamping groove (14) is provided. A clamping plate (7) is installed on the nut body (3). A positioning plate (4) is arranged outside the nut body (3), and a reserved hole (5) is opened inside the positioning plate (4). On both sides of the reserved hole (5), positioning holes (6) are provided; A positioning screw (8) is installed inside the positioning hole (6). On both sides below the positioning screw (8), limiting blocks (9) are provided, and elastic blocks (10) are connected to the inner sides of the limiting blocks (9). A telescopic spring (11) is connected to the inner side of the elastic block (10).

2. The coaxial bolt and nut adjusting mechanism according to claim 1, characterized in that, The bolt rod (2) is fixedly connected to the bolt head (1), and the clamping groove (14) coincides with the vertical center line of the bolt head (1).

3. The coaxial bolt and nut adjusting mechanism according to claim 1, characterized in that, The nut body (3) passes through the inside of the positioning plate (4) through the reserved hole (5), and the positioning plate (4) is mutually clamped with the nut body (3) through the clamping plate (7).

4. A coaxial bolt and nut adjusting mechanism according to claim 1, characterized in that, The positioning screw (8) passes through the inside of the positioning plate (4) through the positioning hole (6), and the positioning screws (8) are symmetrically distributed about the vertical center line of the positioning plate (4).

5. The coaxial bolt and nut adjusting mechanism according to claim 4, characterized in that, The limiting block (9) is perpendicular to the positioning screw (8), and the limiting block (9) and the telescopic spring (11) form a telescopic structure through the elastic block (10).

6. The coaxial bolt and nut adjusting mechanism according to claim 1, characterized in that, The limiting block (9) further includes: A fixing block (12) is provided below the limiting block (9), and a limiting rotating plate (13) is installed outside the fixing block (12).

7. A coaxial bolt and nut adjusting mechanism according to claim 6, characterized in that, The limiting rotating plate (13) forms a rotating structure with the fixing block (12) through a rotating shaft, and the limiting rotating plate (13) is perpendicular to the limiting block (9).

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