Shockproof and anti-loose stop valve

Abstract

The utility model discloses an anti -looseness's stop valve of shockproof, including lower valve body, the top of lower valve body is connected with upper valve body through bolt fixedly, the inner wall of lower valve body is tightly connected with sealing bottom ring, the top fixedly connected with valve plate of sealing bottom ring, the top fixedly connected with valve stem of valve plate, the outer wall upper portion of valve stem is linked with the inner wall screw thread of upper valve body, the inner wall of both sides of upper valve body is all connected with the connecting block of fixedly connecting, and the inner wall of two connecting blocks all is connected with screw rod thread, the utility model relates to stop valve technical field, and this anti -looseness's stop valve of shockproof can increase the rotation difficulty of valve stem through the cooperation of upper valve body, valve stem, clamping block, screw rod, connecting block, plug rod and sleeve, and still possess self -locking function, to improve the use stability, can avoid the loosening phenomenon of valve stem due to vibration through this design, thereby can improve the overall use safety and use quality of valve.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, specifically a gate valve that is shockproof and prevents loosening. Background Technology

[0002] Gate valves, also known as stop valves, are the most widely used type of valve. They are popular because of the low friction between the sealing surfaces during opening and closing, making them durable. They also have a small opening height, are easy to manufacture, and are easy to maintain. They are suitable for both medium and low pressure as well as high pressure. The closing principle of a gate valve is to rely on the pressure of the valve stem to make the valve disc sealing surface and the valve seat sealing surface fit tightly together, thus preventing the flow of the medium.

[0003] Existing gate valves lack adequate shock and loosening prevention structures, making them susceptible to vibration and loosening during use. This can affect the overall valve's performance and safety, causing inconvenience to users. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a shockproof and anti-loosening gate valve. This solves the problem that existing gate valves lack a good shockproof and anti-loosening structure, making them susceptible to vibration and loosening during use. This loosening can affect the overall valve performance and safety, causing inconvenience to users.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shockproof and anti-loosening shut-off valve, comprising a lower valve body, an upper valve body fixedly connected to the top of the lower valve body by bolts, a sealing bottom ring abutting against the inner wall of the lower valve body, a valve plate fixedly connected to the top of the sealing bottom ring, a valve stem fixedly connected to the top of the valve plate, a threaded connection between the upper outer wall of the valve stem and the inner wall of the upper valve body, connecting blocks fixedly connected to the inner walls of both sides of the upper valve body, and threaded screws connected to the inner walls of both connecting blocks, with clamping blocks rotatably connected to the ends of both screws via sealed bearings, and the inner walls of both clamping blocks abutting against the outer wall of the valve stem.

[0006] Preferably, each of the two screws has an insert rod inserted into its inner wall, and each of the two insert rods has a sleeve fitted onto its lower outer wall, with the bottom of each sleeve fixedly connected to the outer wall of the upper valve body.

[0007] Preferably, friction pads are fixedly connected to the connection points of the two clamping blocks and the valve stem, and rubber pads are fixedly connected to the inner walls of the two sleeves, with the inner walls of the two rubber pads respectively abutting the lower outer walls of the two inserts.

[0008] Preferably, a sealing ring is fixedly connected at the connection between the lower valve body and the upper valve body, a packing is fixedly connected to the inner wall of the upper valve body, and the inner wall of the packing fits against the outer wall of the valve stem. A packing pressure plate is fixedly connected above the inner wall of the upper valve body, and the bottom of the packing pressure plate abuts against the top of the packing. The inner wall of the packing pressure plate is threadedly connected to the outer wall of the valve stem.

[0009] Preferably, both sides of the lower valve body are machined with connection holes, and both sides of the lower valve body are machined with placement grooves. Beneficial effects

[0010] This utility model provides a shockproof and anti-loosening gate valve. It has the following advantages: Through the cooperation of the upper valve body, valve stem, clamping block, screw, connecting block, insert rod, and sleeve, this shockproof and anti-loosening gate valve increases the difficulty of rotating the valve stem and also has a self-locking function to improve operational stability. This design prevents the valve stem from loosening due to vibration, thus improving the overall safety and quality of valve operation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 for Figure 1 A sectional view;

[0013] Figure 3 for Figure 2 Schematic diagram of the lower valve body, upper valve body, and sleeve;

[0014] Figure 4 for Figure 2 A schematic diagram of the structure of the middle connecting block, the upper valve body, and the screw.

[0015] In the diagram: 1. Lower valve body; 2. Upper valve body; 3. Packing; 4. Packing pressure plate; 5. Valve stem; 6. Valve plate; 7. Sealing bottom ring; 8. Sealing ring; 9. Sleeve; 10. Rubber gasket; 11. Insert rod; 12. Screw; 13. Connecting block; 14. Clamping block. Detailed Implementation

[0016] 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.

[0017] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0018] Existing gate valves do not have a good anti-vibration and anti-loosening structure. They are easily affected by vibration during use, which can cause them to loosen. This can affect the overall performance of the valve and its safety, thus causing inconvenience to users.

[0019] In view of this, the present invention provides a shockproof and anti-loosening gate valve. Through the cooperation of the upper valve body, valve stem, clamping block, screw, connecting block, insert rod and sleeve, the difficulty of rotating the valve stem can be increased, and it also has a self-locking function to improve the stability of use. This design can prevent the valve stem from loosening due to vibration, thus improving the overall safety and quality of use of the valve.

[0020] Example 1: By Figure 1 , 2 As can be seen from points 3 and 4, a shockproof and anti-loosening shut-off valve includes a lower valve body 1. The top of the lower valve body 1 is fixedly connected to an upper valve body 2 by bolts. A sealing bottom ring 7 is pressed against the inner wall of the lower valve body 1. A valve plate 6 is fixedly connected to the top of the sealing bottom ring 7. A valve stem 5 is fixedly connected to the top of the valve plate 6. The upper part of the outer wall of the valve stem 5 is threadedly connected to the inner wall of the upper valve body 2. Connecting blocks 13 are fixedly connected to the inner walls on both sides of the upper valve body 2. A screw 12 is threadedly connected to the inner wall of both connecting blocks 13. The ends of both screws 12 are rotatably connected to clamping blocks 14 through sealing bearings. The inner walls of both clamping blocks 14 are pressed against the outer wall of the valve stem 5.

[0021] In the specific implementation process, it is worth noting that twisting the valve stem 5 can change the position and height of the valve plate 6 and the sealing bottom ring 7, thereby controlling the valve's operating state. Twisting the screw 12 can change the position of the clamping block 14, thereby pressing the valve stem 5 against the clamping block 14, thus increasing the difficulty of rotating the valve stem 5, so as to limit the valve stem 5. When using it, the operator needs to manually control the angle of the clamping block 14, so as to ensure that the clamping block 14 can be accurately fitted onto the outer surface of the valve stem 5.

[0022] Furthermore, insert rods 11 are inserted into the inner walls of both screws 12, and sleeves 9 are sleeved on the lower outer walls of both insert rods 11, with the bottom of both sleeves 9 being fixedly connected to the outer wall of the upper valve body 2.

[0023] In the specific implementation process, it is worth noting that the cooperation between the insertion rod 11 and the sleeve 9 can limit the screw 12, preventing the screw 12 from rotating on its own without human intervention. Since the valve rod 5 can only move vertically up and down, the lateral position of the valve rod 5 is fixed, that is, the range of use of the clamping block 14 is fixed. Therefore, when in use, the limit torsional angle of the screw 12 is also fixed, so that the insertion rod 11 can be smoothly inserted into the inside of the sleeve 9 through the screw 12.

[0024] Furthermore, friction pads are fixedly connected to the connection points of the two clamping blocks 14 and the valve stem 5, and rubber pads 10 are fixedly connected to the inner walls of the two sleeves 9, with the inner walls of the two rubber pads 10 respectively fitting against the lower outer walls of the two insert rods 11.

[0025] In the specific implementation process, it is worth noting that the friction pad can increase the friction between the clamping block 14 and the valve stem 5. The specific material is not limited and can be selected according to the actual use.

[0026] Furthermore, sealing rings 8 are fixedly connected at the connection between the lower valve body 1 and the upper valve body 2. Packing 3 is fixedly connected to the inner wall of the upper valve body 2, and the inner wall of the packing 3 is in contact with the outer wall of the valve stem 5. Packing pressure plate 4 is fixedly connected to the upper part of the inner wall of the upper valve body 2, and the bottom of the packing pressure plate 4 is in contact with the top of the packing 3. The inner wall of the packing pressure plate 4 is threadedly connected to the outer wall of the valve stem 5.

[0027] In the specific implementation process, it is worth noting that the packing 3 can improve the dynamic sealing between the valve stem 5 and the upper valve body 2, the packing pressure plate 4 can limit the packing 3, and the sealing ring 8 can improve the sealing performance between the upper valve body 2 and the lower valve body 1. The specific materials are not limited, as long as they meet the usage requirements.

[0028] Furthermore, connection holes are machined on both sides of the lower valve body 1, and placement grooves are machined on both sides of the lower valve body 1.

[0029] In the specific implementation process, it is worth noting that the design of the connection hole makes it easier for staff to connect the anti-vibration and anti-loosening shut-off valve to the external pipeline, while the design of the groove makes it easier for staff to install the sealing ring.

[0030] Specifically, when using this anti-vibration and anti-loosening shut-off valve, when locking, the operator twists the screw 12 while controlling the angle of the clamp 14 with the other hand. As the screw 12 rotates, the position of the clamp 14 can be adjusted, thereby pressing the valve stem 5 against the clamp 14, increasing the difficulty of rotating the valve stem 5, thus achieving the locking effect. Subsequently, the operator inserts the insertion rod 11 into the screw 12 and the sleeve 9 in sequence, thereby limiting the screw 12 and preventing the screw 12 from loosening unexpectedly. By controlling the position of the clamp 14, the stability of the valve stem 5 is ensured.

[0031] 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 shockproof and anti-loosening shut-off valve, comprising a lower valve body (1), characterized in that: The upper valve body (2) is fixedly connected to the top of the lower valve body (1) by bolts. A sealing bottom ring (7) is pressed against the inner wall of the lower valve body (1). A valve plate (6) is fixedly connected to the top of the sealing bottom ring (7). A valve stem (5) is fixedly connected to the top of the valve plate (6). The upper part of the outer wall of the valve stem (5) is threadedly connected to the inner wall of the upper valve body (2). Connecting blocks (13) are fixedly connected to the inner walls on both sides of the upper valve body (2). A screw (12) is threadedly connected to the inner wall of both connecting blocks (13). The ends of the two screws (12) are rotatably connected to clamps (14) through sealed bearings. The inner walls of the two clamps (14) are pressed against the outer wall of the valve stem (5).

2. The shockproof and anti-loosening shut-off valve according to claim 1, characterized in that: Both screws (12) have insert rods (11) inserted into their inner walls, and both insert rods (11) have sleeves (9) fitted onto their outer walls. The bottoms of both sleeves (9) are fixedly connected to the outer wall of the upper valve body (2).

3. The anti-vibration and anti-loosening shut-off valve according to claim 2, characterized in that: Friction pads are fixedly connected to the connection points of the two clamping blocks (14) and the valve stem (5), and rubber pads (10) are fixedly connected to the inner walls of the two sleeves (9), and the inner walls of the two rubber pads (10) are respectively attached to the lower outer walls of the two insert rods (11).

4. The anti-vibration and anti-loosening shut-off valve according to claim 1, characterized in that: A sealing ring (8) is fixedly connected at the connection between the lower valve body (1) and the upper valve body (2). A packing (3) is fixedly connected to the inner wall of the upper valve body (2), and the inner wall of the packing (3) is in contact with the outer wall of the valve stem (5). A packing pressure plate (4) is fixedly connected above the inner wall of the upper valve body (2), and the bottom of the packing pressure plate (4) is in contact with the top of the packing (3). The inner wall of the packing pressure plate (4) is threadedly connected to the outer wall of the valve stem (5).

5. The anti-vibration and anti-loosening shut-off valve according to claim 1, characterized in that: Both sides of the lower valve body (1) are machined with connection holes, and both sides of the lower valve body (1) are machined with placement grooves.

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