Bolt and nut limiting mechanism

Abstract

The utility model belongs to the technical field of assembly, and particularly relates to a bolt and nut limiting mechanism which comprises a fixing frame, a nut and a bolt, the nut is arranged in the fixing frame, the bolt is arranged in the nut in a penetrating mode, pressing plates are arranged on the two sides of the top of the nut, and adjusting gears are arranged on the sides, away from the nut, of the pressing plates. According to the bolt and nut limiting mechanism, a movable rack moves downwards along a supporting sliding rod under the action of a sliding sleeve block by arranging a pushing movable lantern ring, a pressing plate rotates and moves upwards under the meshing action of an adjusting gear and the movable rack, and a nut rotates under the action of threads and moves downwards along a bolt; after the bolt and the nut are assembled, the movable lantern ring is loosened, the sliding sleeve block is elastically connected with the fixed frame through the supporting spring, and under the action of elasticity, the sliding sleeve block drives the movable rack to move upwards, so that the pressing plate rotates and presses downwards, and the nut is limited and fixed.

Description

Technical Field

[0001] The utility model belongs to the technical field of assembly, and specifically relates to a bolt and nut limiting mechanism. Background Art

[0002] A nut is a screw cap, a fastener with internal threads that is used in conjunction with a bolt, and a mechanical part with internal threads that is used in conjunction with a screw rod to transmit motion or power.

[0003] Currently, in the prior art:

[0004] Currently, both nuts and bolts are rotated and fixed using a wrench. However, during the fixing process, due to the lack of a limiting mechanism for the bolt, the nut will drive the bolt to rotate synchronously, making it impossible to achieve the fixing purpose. Moreover, after assembly, the nut will become loose due to vibration, thus affecting the assembly quality.

[0005] Therefore, a bolt and nut limiting mechanism is proposed to solve the above problems. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve the above problems, a bolt and nut limiting mechanism is proposed.

[0007] The technical solution adopted by the utility model to solve its technical problems is as follows: A bolt and nut limiting mechanism of the utility model includes a fixed frame, a nut, and a bolt. A nut is arranged inside the fixed frame, and a bolt passes through the nut. Pressure plates are arranged on both sides of the top of the nut. An adjusting gear is arranged on the side of the pressure plate away from the nut. A movable rack is arranged on the side of the adjusting gear away from the nut. A sliding sleeve block is arranged on the side of the movable rack away from the nut. A supporting slide bar passes through the sliding sleeve block. A supporting spring is sleeved on the lower part of the outer side of the supporting slide bar. A movable collar is sleeved on the outside of the sliding sleeve block.

[0008] Preferably, the nut is in threaded fit with the bolt. The nut contacts the pressure plate. The pressure plate is fixedly connected to the adjusting gear. The adjusting gear meshes with the movable rack. The movable rack is fixedly connected to the sliding sleeve block. The supporting slide bar passes through the sliding sleeve block. The sliding sleeve block is elastically connected to the fixed frame through the supporting spring. The sliding sleeve block is fixedly connected to the movable collar.

[0009] Preferably, limiting columns are arranged on both sides below the bolt. Guide sliders are arranged on both the upper and lower sides of the limiting columns. Guide chutes are opened on both the upper and lower sides of the bottom inside the fixed frame. A locking screw is arranged on the side of the limiting column away from the bolt.

[0010] Preferably, the bolt is fastened to the limit post, the limit post is fixedly connected to the guide slider, the guide slider is adapted to the guide chute, and the limit post is movably connected to the locking screw.

[0011] Advantages of the present utility model:

[0012] The present utility model provides a bolt and nut limiting mechanism. By arranging the bolt to pass through the fixed frame and rotating the locking screws on both sides, under the action of the thread and the guide slider, they move towards each other along the guide chute, and the limit post is used to fasten to the bolt to fix the bolt, so as to facilitate the assembly of the bolt and the nut;

[0013] The present utility model provides a bolt and nut limiting mechanism. By arranging to push the movable collar, under the action of the sliding sleeve block, the movable rack moves downward along the support slide rod. Since the adjusting gear meshes with the movable rack, under the meshing action of the gears, the pressing plate rotates upward, and the nut rotates under the action of the thread and moves downward along the bolt. After the assembly of the bolt and the nut is completed, the movable collar is released. Since the sliding sleeve block is elastically connected to the fixed frame through the support spring, under the action of the elastic force, the sliding sleeve block drives the movable rack to move upward, so that the pressing plate rotates downward to limit and fix the nut. Description of the Drawings

[0014] The drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0015] Figure 1 is a three-dimensional view inside the present utility model;

[0016] Figure 2 is the present utility model Figure 1 partial enlarged view at A in

[0017] Figure 3 is the front view of the present utility model;

[0018] Legend Explanation:

[0019] 1. Fixed frame; 2. Nut; 3. Bolt; 4. Pressing plate; 5. Adjusting gear; 6. Movable rack; 7. Sliding sleeve block; 8. Support slide rod; 9. Support spring; 10. Movable collar; 11. Limit post; 12. Guide slider; 13. Guide chute; 14. Locking screw. Detailed Embodiments

[0020] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present utility model.

[0021] The following gives specific embodiments.

[0022] Please refer to Figures 1-3 , the present utility model provides a bolt and nut limiting mechanism, including a fixed frame 1, a nut 2 and a bolt 3. The nut 2 is arranged inside the fixed frame 1, and the bolt 3 passes through the nut 2. On both sides of the top of the nut 2, there are pressure plates 4. On the side of the pressure plate 4 away from the nut 2, there is an adjusting gear 5. On the side of the adjusting gear 5 away from the nut 2, there is a movable rack 6. On the side of the movable rack 6 away from the nut 2, there is a sliding sleeve block 7. A support sliding rod 8 passes through the sliding sleeve block 7. A support spring 9 is sleeved on the lower part of the outside of the support sliding rod 8. An activity collar 10 is sleeved on the outside of the sliding sleeve block 7. The nut 2 is in threaded fit with the bolt 3. The nut 2 contacts the pressure plate 4. The pressure plate 4 is fixedly connected to the adjusting gear 5. The adjusting gear 5 meshes with the movable rack 6. The movable rack 6 is fixedly connected to the sliding sleeve block 7. The support sliding rod 8 passes through the sliding sleeve block 7. The sliding sleeve block 7 is elastically connected to the fixed frame 1 through the support spring 9. The sliding sleeve block 7 is fixedly connected to the activity collar 10.

[0023] During operation, when the activity collar 10 is pushed, under the action of the sliding sleeve block 7, the movable rack 6 moves downward along the support sliding rod 8. Since the adjusting gear 5 meshes with the movable rack 6, under the meshing action of the gears, the pressure plate 4 rotates upward, and the nut 2 rotates under the action of the thread and moves downward along the bolt 3. After the bolt 3 and the nut 2 are assembled, the activity collar 10 is released. Since the sliding sleeve block 7 is elastically connected to the fixed frame 1 through the support spring 9, under the action of the elastic force, the sliding sleeve block 7 drives the movable rack 6 to move upward, so that the pressure plate 4 rotates downward to limit and fix the nut 2.

[0024] Furthermore, as shown in Figure 1 and Figure 3 , on both sides below the bolt 3, there are limit posts 11. On the upper and lower sides of the limit posts 11, there are guide sliders 12. On the upper and lower sides of the inner bottom of the fixed frame 1, there are guide chutes 13. On the side of the limit post 11 away from the bolt 3, there is a locking screw 14. The bolt 3 is buckled with the limit post 11. The limit post 11 is fixedly connected to the guide slider 12. The guide slider 12 is adapted to the guide chute 13. The limit post 11 is movably connected to the locking screw 14.

[0025] During operation, the bolt 3 passes through the fixed frame 1. The locking screws 14 on both sides are rotated, and under the action of the threads and the guiding sliders 12, they move towards each other along the guiding chutes 13. The limiting posts 11 are used to engage with the bolt 3 to fix the bolt 3, facilitating the assembly of the bolt 3 and the nut 2.

[0026] Working principle:

[0027] First, the bolt 3 passes through the fixed frame 1. The locking screws 14 on both sides are rotated, and under the action of the threads and the guiding sliders 12, they move towards each other along the guiding chutes 13. The limiting posts 11 are used to engage with the bolt 3 to fix the bolt 3, facilitating the assembly of the bolt 3 and the nut 2.

[0028] Secondly, the movable collar 10 is pushed. Under the action of the sliding sleeve block 7, the movable rack 6 moves downward along the support slide rod 8. Since the adjusting gear 5 meshes with the movable rack 6, under the meshing action of the gears, the pressing plate 4 rotates upward, causing the nut 2 to rotate under the action of the threads and move downward along the bolt 3. After the assembly of the bolt 3 and the nut 2 is completed, the movable collar 10 is released. Since the sliding sleeve block 7 is elastically connected to the fixed frame 1 through the support spring 9, under the action of the elastic force, the sliding sleeve block 7 drives the movable rack 6 to move upward, so that the pressing plate 4 rotates downward to limit and fix the nut 2.

[0029] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A bolt and nut limiting mechanism, comprising a fixing frame (1), a nut (2) and a bolt (3), characterized in that: A nut (2) is arranged inside the fixed frame (1), a bolt (3) is passed through the inside of the nut (2), pressure plates (4) are arranged on both sides of the top of the nut (2), an adjusting gear (5) is arranged on the side of the pressure plate (4) away from the nut (2), a movable rack (6) is arranged on the side of the adjusting gear (5) away from the nut (2), a sliding block (7) is arranged on the side of the movable rack (6) away from the nut (2), a supporting slide rod (8) is passed through the inside of the sliding block (7), a supporting spring (9) is sleeved below the outside of the supporting slide rod (8), and a movable collar (10) is sleeved on the outside of the sliding block (7).

2. A bolt and nut limiting mechanism according to claim 1, characterized in that: The nut (2) and the bolt (3) are threadedly matched, the nut (2) is in contact with the pressure plate (4), the pressure plate (4) is fixedly connected to the adjusting gear (5), the adjusting gear (5) is meshed with the movable rack (6), the movable rack (6) is fixedly connected to the sliding block (7), the supporting sliding rod (8) passes through the sliding block (7), the sliding block (7) is elastically connected to the fixed frame (1) via a supporting spring (9), and the sliding block (7) is fixedly connected to the movable collar (10).

3. A bolt and nut limiting mechanism according to claim 1, characterized in that: Limiting columns (11) are provided on both sides below the bolt (3), and guiding slide blocks (12) are provided on both upper and lower sides of the limiting columns (11). Guide sliding grooves (13) are provided on both upper and lower sides of the bottom of the fixed frame (1), and a locking screw (14) is provided on the side of the limiting column (11) away from the bolt (3).

4. A bolt and nut limiting mechanism according to claim 3, characterized in that: The bolt (3) is buckled with the limit column (11), the limit column (11) is fixedly connected to the guide slider (12), the guide slider (12) is matched with the guide slide groove (13), and the limit column (11) is movably connected to the locking screw (14).

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