Precise screw with anti-resonance function

Abstract

The utility model discloses a precision screw with an anti-resonance function, which belongs to the technical field of precision screws and comprises a screw body, the screw body comprises a head and a stud, the head is rotatably mounted inside a fixing sleeve, and two groups of fixing rods are fixedly mounted at the bottom of the fixing sleeve. The limiting assembly comprises a plurality of groups of limiting blocks and locking blocks; by arranging the connecting rod and the spring, the screw is simple in structure, convenient to use and practical, the locking block can be pushed to abut against the position between the two sets of limiting blocks, the screw body is prevented from accidentally rotating, and therefore looseness of the screw body caused by resonance is prevented; and through the unlocking assembly, the locking block can be pulled to fall off from the position between the limiting blocks, so that limitation of the screw body is relieved, and an operator can conveniently disassemble the screw body.

Description

Technical Field

[0001] This utility model relates to the field of precision screw technology, specifically a precision screw with anti-resonance function. Background Technology

[0002] The automotive transmission is a key component of the vehicle's drivetrain. It primarily changes the engine's output speed and torque to adapt to different driving conditions. The transmission's complex and precise structure requires extremely high precision in the dimensions of its screws, typically with tolerances controlled within a very small range. This ensures the screws are accurately installed in their designated positions and fit tightly with other components, preventing assembly problems caused by screw dimensional deviations that could affect the transmission's performance and stability. During operation, the transmission withstands significant torque and impact forces, requiring screws with sufficient strength and toughness to withstand complex mechanical forces without deformation or breakage. They are generally made of high-strength alloy steel or stainless steel and undergo special heat treatment processes to improve their mechanical properties.

[0003] A search revealed that Chinese Patent Publication No. CN217539275U discloses a high-strength precision screw, comprising a fixing screw, a nut, a stabilizing component, and a fastening component. The nut is located on the side of the fixing screw, the stabilizing component is located on the side of the fixing screw, and the fastening component is located on the side of the stabilizing component. The signboard to be installed is placed between the stabilizing component and the fastening component. Then, the stabilizing component is fitted over the fixing screw, and multiple adhesive blocks on the side of the annular bonding plate are used to adhere and fix the back of the signboard. The annular plate of the fastening component is then fitted over the screw. By rotating the wing cap, the annular plate is fixed along with the fastening screw, thus holding the installed signboard against it for stable installation, improving practicality and extending service life.

[0004] However, this device also has the following drawbacks:

[0005] When a car's transmission is working, it will vibrate. Vibrations from the engine and other components will also be transmitted to the transmission. Under the long-term effect of vibration, the screws may gradually loosen, resulting in a decrease in the fastening force of the connection parts. This device does not solve this problem. Utility Model Content

[0006] The purpose of this invention is to provide a precision screw with anti-resonance function. By setting a connecting rod and a spring, the locking block can be pushed to abut against the two sets of limiting blocks to prevent the screw body from rotating accidentally, thereby preventing resonance from causing the screw body to loosen, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A precision screw with anti-resonance function includes a screw body, the screw body including a head and a stud, the head being rotatably mounted inside a fixing sleeve, and two sets of fixing rods being fixedly mounted on the bottom of the fixing sleeve;

[0009] It also includes a limiting component, which includes multiple sets of limiting blocks and locking blocks. One side of the limiting block is set as an inclined surface. The limiting blocks are symmetrically arranged around the head. The limiting blocks are fixedly connected to the head. One side of the locking block abuts between two sets of limiting blocks. The other side of the locking block is fixedly connected to one end of two sets of connecting rods. A spring is slidably sleeved on the surface of the connecting rod.

[0010] It also includes an unlocking component, which includes an unlocking plate. One side of the unlocking plate is rotatably connected to a fixed plate via a pivot, and the fixed plate is fixedly connected to the other end of a connecting rod.

[0011] Preferably, the fixing sleeve has an internal mounting cavity, the limiting block slides with the mounting cavity, and the locking block is disposed inside the mounting cavity.

[0012] Preferably, the connecting rod slides into the fixed sleeve, one end of the spring abuts against the locking block, and the other end of the spring abuts against the inner wall of the mounting cavity.

[0013] Preferably, the unlocking plate and the fixing plate are slidably installed inside the mounting base, and the mounting base is fixedly connected to the outer wall of the fixing sleeve.

[0014] Preferably, a limiting ring is fixedly installed around the top of the head, and a limiting groove is formed inside the upper part of the fixing sleeve, with the limiting ring and the limiting groove slidingly engaged.

[0015] Preferably, the head is fixedly connected to the top of the stud, and a damping washer is provided on the surface of the stud, with the damping washer slidingly engaging with the surface of the stud.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model features a simple and convenient structure with a connecting rod and spring. It allows the locking block to be pushed against the two sets of limiting blocks to prevent accidental rotation of the screw body, thus preventing resonance that could cause the screw body to loosen. By setting one side of the limiting block as an inclined plane, the screw body can be allowed to rotate in one direction, thereby avoiding interference with the rotation and fixation of the screw body. Through the unlocking component, the locking block can be pulled out from between the limiting blocks, thereby releasing the constraint on the screw body and facilitating the operator to disassemble the screw body. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the fixed sleeve;

[0020] Figure 3 A schematic diagram of the component structure for unlocking;

[0021] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Head; 2. Stud; 3. Fixing sleeve; 4. Fixing rod; 5. Limiting block; 6. Locking block; 7. Connecting rod; 8. Spring; 9. Unlocking plate; 10. Rotating shaft; 11. Fixing plate; 12. Mounting cavity; 13. Mounting seat; 14. Limiting ring; 15. Limiting groove; 16. Damping pad. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 This utility model provides a technical solution:

[0025] A precision screw with anti-resonance function includes a screw body, which includes a head 1 and a stud 2. The head 1 is rotatably mounted inside a fixing sleeve 3. Two sets of fixing rods 4 are fixedly mounted on the bottom of the fixing sleeve 3. Limiting rings 14 are fixedly mounted around the top of the head 1. A limiting groove 15 is opened on the upper part of the inside of the fixing sleeve 3. The limiting rings 14 and the limiting groove 15 are slidably engaged. The head 1 is fixedly connected to the top of the stud 2. A damping washer 16 is provided on the surface of the stud 2. The damping washer 16 is slidably engaged with the surface of the stud 2.

[0026] By using the fixing sleeve 3 and fixing rod 4 together, the fixing sleeve 3 can be fixed in position by inserting the fixing rod 4 into the external positioning hole, preventing the fixing sleeve 3 from rotating accidentally. The limiting component can be used to prevent the screw body from rotating. By using the limiting groove 15 and limiting ring 14 together, the fixing sleeve 3 can be prevented from falling off the head 1. By setting the damping pad 16, when the screw body is vibrated, the damping pad 16 can consume the vibration energy, thereby reducing the vibration amplitude and reducing the impact of resonance.

[0027] It also includes a limiting component, which includes multiple sets of limiting blocks 5 and locking blocks 6. One side of the limiting block 5 is set as an inclined surface. The limiting blocks 5 are symmetrically arranged around the head 1. The limiting blocks 5 are fixedly connected to the head 1. One side of the locking block 6 abuts between two sets of limiting blocks 5. The other side of the locking block 6 is fixedly connected to one end of two sets of connecting rods 7. A spring 8 is slidably sleeved on the surface of the connecting rod 7. An installation cavity 12 is opened inside the fixing sleeve 3. The limiting blocks 5 slide with the installation cavity 12. The locking blocks 6 are set inside the installation cavity 12. The connecting rods 7 slide with the fixing sleeve 3. One end of the spring 8 abuts against the locking block 6. The other end of the spring 8 abuts against the inner wall of the installation cavity 12.

[0028] By setting the connecting rod 7 and the spring 8, the locking block 6 can be pushed to abut between the two sets of limit blocks 5 to prevent the screw body from rotating accidentally, thereby preventing resonance from causing the screw body to loosen. By setting one side of the limit block 5 as an inclined surface, the screw body can be allowed to rotate in one direction, thereby avoiding affecting the tightening of the screw body.

[0029] It also includes an unlocking component, which includes an unlocking plate 9. One side of the unlocking plate 9 is rotatably connected to the fixing plate 11 via a pivot 10. The fixing plate 11 is fixedly connected to the other end of the connecting rod 7. The unlocking plate 9 and the fixing plate 11 are slidably installed inside the mounting base 13. The mounting base 13 is fixedly connected to the outer wall of the fixing sleeve 3.

[0030] Furthermore, by using the unlocking component, the connecting rod 7 can be moved by pulling the unlocking plate 9, thereby pulling the locking block 6 away from the limiting block 5, releasing the screw body from its constraint, making it easier for the operator to disassemble the screw body. By setting the rotating shaft 10, after the unlocking plate 9 is pulled to the unlocking position, it can be rotated 90°, so that one side of the unlocking plate 9 abuts against one side of the mounting base 13, keeping the locking block 6 in the unlocking position, making it easier for the operator to free up both hands to disassemble the screw body.

[0031] In practical use, move the device to the designated position, align the bottom of the stud 2 with the external screw hole, and use an external tool to turn the head 1 forward so that the screw body is screwed into the external screw hole. When the bottom of the fixing rod 4 approaches the fixing surface where the external screw hole is located, rotate the fixing sleeve 3 to align the bottom of the fixing rod 4 with the pre-opened positioning hole. Then continue to rotate the screw body. As the screw body enters the screw hole, the fixing rod 4 is also inserted into the positioning hole to prevent the screw body from rotating in the opposite direction. When it is necessary to disassemble the screw body, pull the unlocking plate 9 to pull the locking block 6 out from between the limit blocks 5, and rotate the unlocking plate 9 90°. Then, use an external tool to turn the head 1 in the opposite direction to unscrew the screw body.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision screw having an anti-resonance function, characterized by: Including screw body, the screw body includes head (1) and stud (2), the head (1) is rotatably installed in the inside of fixed sleeve (3), the bottom of fixed sleeve (3) is fixedly installed with two groups of fixed rod (4); It also includes a limiting assembly, the limiting assembly includes a plurality of limiting blocks (5) and locking blocks (6), one side of the limiting block (5) is provided as an inclined surface, the limiting block (5) is symmetrically arranged around the head (1), the limiting block (5) is fixedly connected with the head (1), one side of the locking block (6) abuts between the two limiting blocks (5), the other side of the locking block (6) is fixedly connected with one end of the two connecting rods (7), the connecting rod (7) surface is slidably sleeved with spring (8); It also includes an unlocking assembly, the unlocking assembly includes an unlocking plate (9), one side of the unlocking plate (9) is rotatably connected with a fixed plate (11) through a rotating shaft (10), the fixed plate (11) is fixedly connected with the other end of the connecting rod (7).

2. The precision screw with anti-resonance function according to claim 1, characterized in that: The inside of the fixed sleeve (3) is provided with an installation inner cavity (12), the limiting block (5) is slidably connected with the installation inner cavity (12), and the locking block (6) is arranged in the installation inner cavity (12).

3. The precision screw with anti-resonance function according to claim 1, characterized in that: The connecting rod (7) is slidably connected with the fixed sleeve (3), one end of the spring (8) abuts against the locking block (6), and the other end of the spring (8) abuts against the inner wall of the installation inner cavity (12).

4. The precision screw with anti-resonance function according to claim 1, characterized in that: The unlocking plate (9) and the fixed plate (11) are slidably installed in the inside of the mounting seat (13), and the mounting seat (13) is fixedly connected with the outer side wall of the fixed sleeve (3).

5. The precision screw with anti-resonance function according to claim 1, characterized in that: The top of the head (1) is fixedly provided with a limiting ring (14), the inside of the fixed sleeve (3) is provided with a limiting groove (15) above, and the limiting ring (14) is slidably connected with the limiting groove (15).

6. The precision screw with anti-resonance function according to claim 1, characterized in that: The head (1) is fixedly connected with the top of the stud (2), the surface of the stud (2) is provided with a damping gasket (16), and the damping gasket (16) is slidably connected with the surface of the stud (2).

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