Anti-seismic and anti-deformation valve casting

Abstract

The utility model discloses an anti-seismic anti-deformation valve casting, which relates to the field of valve castings and comprises a valve pipe, an inner pipe is arranged at the end of the valve pipe, a connecting flange is fixedly mounted at the end of the inner pipe, a sealing gasket is arranged on the outer wall of the connecting flange, and an anti-deformation structure for preventing the inner pipe from deforming is arranged in the inner pipe. The anti-deformation structure comprises an outer pipe arranged outside the inner pipe, reinforcing ribs are arranged in the inner pipe, reinforcing nets are arranged on the outer walls of the reinforcing ribs, a composite coating is arranged on the inner wall of the inner pipe, and an anti-seismic structure used for protecting the inner pipe is arranged on the outer wall of the inner pipe. According to the anti-seismic and anti-deformation valve casting, the overall rigidity of a valve is greatly improved, so that when the valve is vibrated, the structural integrity can be better kept, local deformation of an inner pipe caused by vibration impact force concentration is prevented, and the problems of unstable flow, untight valve closing and the like caused by deformation of the inner pipe are effectively solved; and the possibility of valve damage and pipeline leakage caused by vibration is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of valve casting technology, specifically to a shock-resistant and deformation-resistant valve casting. Background Technology

[0002] Valve castings typically refer to cast parts used to manufacture valves, such as valve bodies, valve covers, and valve cores. These parts are usually made of materials such as cast iron, cast steel, and stainless steel, and are used to control the flow of fluids in pipeline systems.

[0003] In the prior art, Chinese Patent Publication No. CN222596951U discloses a valve casting. Two positioning frames are symmetrically arranged at the upper end of the valve, and a moving block is slidably arranged between the two positioning frames. A limiting rod with a through hole is provided at the upper end of the moving block. A drive shaft is rotatably arranged between the two positioning frames, and the drive shaft meshes with the moving block. When the handwheel is adjusted, rotating the drive wheel causes the drive shaft to rotate. Through the meshing action, the moving block can rise and fall between the two positioning frames, allowing the limiting rod to pass through the through hole. The number of through holes is not strictly defined. After the limiting rod passes through the through hole, the spring is in its normal state, making the position of the moving block more stable between the two positioning frames, thereby improving the stability of the valve during use.

[0004] Based on the above information, it can be seen that valve castings are usually in an overheated or overcooled working environment during use, and the water flow will also come into contact with and collide with the inner wall of the valve casting, causing the valve casting to vibrate. This can easily lead to deformation of the valve casting, resulting in leakage of the pipeline system, and in turn, safety accidents and economic losses. Therefore, we propose a shock-resistant and deformation-resistant valve casting. Utility Model Content

[0005] The purpose of this utility model is to provide a shock-resistant and deformation-resistant valve casting to solve the problem mentioned in the background art that valve castings are usually in an overheated or overcooled working environment during use, and the water flow will also come into contact with and collide with the inner wall of the valve casting, causing the valve casting to vibrate, which can easily lead to deformation of the valve casting, resulting in leakage of the pipeline system, and thus causing safety accidents and economic losses.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shock-resistant and deformation-resistant valve casting, comprising a valve pipe, an inner pipe at one end of the valve pipe, a connecting flange fixedly installed at the end of the inner pipe, and a sealing gasket on the outer wall of the connecting flange; an anti-deformation structure inside the inner pipe for preventing deformation of the inner pipe, the anti-deformation structure comprising an outer pipe disposed outside the inner pipe; reinforcing ribs inside the inner pipe, and reinforcing mesh on the outer wall of the reinforcing ribs; a composite coating on the inner wall of the inner pipe; and a shock-resistant structure on the outer wall of the inner pipe for protecting the inner pipe.

[0007] Furthermore, the sealing gasket is provided corresponding to the outer wall of the connecting flange, and the outer wall of the sealing gasket is provided with a raised ring, and the cross section of the raised ring is trapezoidal. The outer wall of the connecting flange is provided with a sealing groove corresponding to the raised ring to enhance the sealing performance.

[0008] Furthermore, the outer tube is correspondingly arranged with the inner tube, and the inner diameter of the outer tube is larger than the outer diameter of the inner tube. The reinforcing ribs are designed in a grid pattern inside the inner tube, and the reinforcing mesh is correspondingly arranged with the reinforcing ribs. The reinforcing mesh is made of fiber mesh material.

[0009] Furthermore, the composite coating consists of an anti-corrosion layer and a cold-resistant layer, used to prevent cracking and corrosion of the inner wall of the inner tube.

[0010] Furthermore, the seismic-resistant structure includes a reinforcing block fixedly installed on the outer wall of the outer tube, an elastic sheet is provided on the inner wall of the outer tube, and a buffer block is provided on the outer wall of the elastic sheet.

[0011] Furthermore, the reinforcing block is designed in a ring shape, and the cross-section of the reinforcing block is designed in a trapezoidal shape. The reinforcing blocks are arranged at equal intervals between the inner tube and the outer tube.

[0012] Furthermore, the elastic sheet has an arc-shaped cross-section and is located between the two sets of reinforcing blocks, and the elastic sheet is set at equal angles on the inner wall of the outer tube.

[0013] Furthermore, the buffer block is made of fiber cotton and is located between the outer tube and the inner tube, and the buffer block is correspondingly set with the elastic sheet.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This anti-seismic and anti-deformation valve casting constructs a robust internal support system by setting a grid-like reinforcing rib and a fiber mesh reinforcing mesh inside the inner tube. When water flows at high speed and impacts the inner wall of the inner tube, or when the inner tube expands and contracts due to drastic changes in ambient temperature, the reinforcing rib can provide stable support for the inner tube with its rigid structure, while the reinforcing mesh can further disperse stress and prevent stress concentration from causing local deformation of the inner tube. This effectively avoids problems such as unstable flow and valve not closing tightly caused by deformation of the inner tube.

[0016] 2. In terms of seismic performance, the reinforcing block significantly improves the overall rigidity of the valve, enabling it to better maintain structural integrity when encountering vibration. The arc-shaped elastic plates set at the same angle on the inner wall of the outer pipe can quickly undergo elastic deformation at the moment of vibration, converting some of the vibration energy into its own elastic potential energy, playing an initial buffering role. Combined with the buffer block made of fiber cotton, it can further absorb and weaken the remaining vibration impact force, greatly reducing the possibility of valve damage and pipeline leakage caused by vibration.

[0017] 3. The composite coating on the inner wall of the inner tube can effectively resist various corrosive fluids. In cold regions or low-temperature conditions, it reduces the risk of cracking of the inner tube due to sudden temperature drops, and extends the service life of the valve. In addition, the precise fit between the trapezoidal convex ring on the outer wall of the sealing gasket and the sealing groove on the outer wall of the connecting flange significantly enhances the sealing performance of the connection, effectively prevents fluid leakage, and reduces safety hazards and economic losses. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the outer tube of this utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the inner tube of this utility model;

[0021] Figure 4 This is a schematic diagram of the earthquake-resistant mechanism structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the reinforcing block structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the outer tube and inner tube of this utility model.

[0024] In the diagram: 1. Valve pipe; 2. Inner pipe; 201. Sealing groove; 202. Composite coating; 3. Outer pipe; 4. Connecting flange; 5. Sealing gasket; 501. Raised ring; 6. Reinforcing rib; 601. Reinforcing mesh; 7. Reinforcing block; 8. Buffer block; 9. Elastic sheet. Detailed Implementation

[0025] 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.

[0026] Example 1: Please refer to Figures 1-6 This utility model provides the following technical solution: a shock-resistant and deformation-resistant valve casting, including a valve pipe 1, an inner pipe 2 at one end of the valve pipe 1, and a connecting flange 4 fixedly installed at the end of the inner pipe 2, with a sealing gasket 5 on the outer wall of the connecting flange 4. The inner pipe 2 has an anti-deformation structure inside to prevent deformation, including an outer pipe 3 outside the inner pipe 2. The inner pipe 2 has reinforcing ribs 6 inside, with a reinforcing mesh 601 on the outer wall of the reinforcing ribs 6. The inner wall of the inner pipe 2 has a composite coating 202. The sealing gasket 5 is flush with the outer wall of the connecting flange 4. Correspondingly, the outer wall of the sealing gasket 5 is provided with a raised ring 501, and the cross section of the raised ring 501 is trapezoidal. The outer wall of the connecting flange 4 is provided with a sealing groove 201 corresponding to the raised ring 501 to enhance the sealing performance. The outer tube 3 is provided correspondingly to the inner tube 2, and the inner diameter of the outer tube 3 is larger than the outer diameter of the inner tube 2. The reinforcing rib 6 is designed in a grid pattern inside the inner tube 2, and the reinforcing mesh 601 is provided correspondingly to the reinforcing rib 6. The reinforcing mesh 601 is made of fiber mesh material. The composite coating 202 is composed of an anti-corrosion layer and a cold-resistant layer to prevent cracking and corrosion of the inner wall of the inner tube 2.

[0027] As a key channel for fluid flow, the inner tube 2 is highly susceptible to deformation under complex operating conditions. The mesh-like reinforcing ribs 6 are evenly distributed inside the inner tube 2, providing comprehensive support from within the inner tube 2 due to their high strength and rigidity. When the water flow impacts the inner wall of the inner tube 2 at high speed, generating a large impact force, the reinforcing ribs 6 can directly withstand this impact force, preventing the inner tube 2 from denting and deforming due to excessive local stress. At the same time, drastic changes in ambient temperature will cause the inner tube 2 to expand and contract due to heat. The reinforcing ribs 6 can limit the excessive expansion or contraction of the inner tube 2 through their own structure, maintaining the shape stability of the inner tube 2. The reinforcing mesh 601 is tightly attached to the outer wall of the reinforcing ribs 6. Due to the good flexibility and stress dispersion characteristics of its fiber mesh material, it can evenly distribute the stress generated by water flow impact, temperature changes, etc., to the entire structure of the inner tube 2, preventing stress concentration in a certain part of the inner tube 2 and avoiding problems such as unstable flow and valve incomplete closure caused by deformation of the inner tube 2.

[0028] Example 2: Based on Example 1, an anti-seismic mechanism is also disclosed, the specific structure of which is as follows: The outer wall of the inner tube 2 is provided with an anti-seismic structure for protecting the inner tube 2. The anti-seismic structure includes a reinforcing block 7 fixedly installed on the outer wall of the outer tube 3. The inner wall of the outer tube 3 is provided with an elastic sheet 9, and the outer wall of the elastic sheet 9 is provided with a buffer block 8. The reinforcing block 7 is annularly designed, and the cross-section of the reinforcing block 7 is trapezoidal. The reinforcing blocks 7 are evenly spaced between the inner tube 2 and the outer tube 3. The cross-section of the elastic sheet 9 is arc-shaped, and the elastic sheet 9 is located between the two sets of reinforcing blocks 7. The elastic sheet 9 is set at equal angles on the inner wall of the outer tube 3. The buffer block 8 is made of fiber cotton, and the buffer block 8 is located between the outer tube 3 and the inner tube 2. The buffer block 8 is correspondingly set with the elastic sheet 9.

[0029] The annular reinforcing block 7 on the outer wall of the outer pipe 3 has a trapezoidal cross-section design, which greatly improves the overall rigidity of the valve. When encountering vibration, the reinforcing block 7 can effectively block the direct impact of vibration on the outer pipe 3 and the inner pipe 2. With its rigid structure, it maintains the overall structural integrity of the valve. The arc-shaped elastic sheet 9 set at equal angles on the inner wall of the outer pipe 3 is located between the two sets of reinforcing blocks 7. When the vibration is transmitted to the outer pipe 3 instantly, the elastic sheet 9 will respond quickly. Utilizing its own arc structure and elastic characteristics, it will undergo elastic deformation, converting part of the vibration energy into its own elastic potential energy, playing the role of initial vibration buffering and weakening the impact of vibration on the outer pipe 3 and the inner pipe 2. The fiber cotton buffer block 8 is set correspondingly to the elastic sheet 9. The remaining vibration impact force after the initial buffering by the elastic sheet 9 will be further absorbed and weakened by the buffer block 8. The fiber cotton material has good energy absorption characteristics and can convert vibration energy into other forms of energy such as frictional heat energy between fibers. Thus, the multiple protective effects work together to make the valve operate stably and greatly reduce the possibility of valve damage and pipeline leakage caused by vibration.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A shock-resistant and deformation-resistant valve casting, comprising a valve pipe (1), wherein the valve pipe (1) has an inner pipe (2) at one end, and a connecting flange (4) is fixedly installed at the end of the inner pipe (2), and a sealing gasket (5) is provided on the outer wall of the connecting flange (4), characterized in that: The inner tube (2) is internally provided with an anti-deformation structure for preventing deformation of the inner tube (2), the anti-deformation structure comprises an outer tube (3) arranged outside the inner tube (2), the inner tube (2) is internally provided with a reinforcing rib (6), and the outer wall of the reinforcing rib (6) is provided with a reinforcing mesh (601), the inner wall of the inner tube (2) is provided with a composite coating (202), and the outer wall of the inner tube (2) is provided with a shock-resistant structure for protecting the inner tube (2).

2. The shock resistant, deformation resistant valve casting of claim 1, wherein: The sealing gasket (5) is arranged corresponding to the outer wall of the connecting flange (4), the outer wall of the sealing gasket (5) is provided with a convex ring (501), the cross section of the convex ring (501) is designed in a trapezoidal shape, the outer wall of the connecting flange (4) is provided with a sealing groove (201) corresponding to the convex ring (501), and the sealing groove (201) is used for enhancing the sealing property.

3. The shock resistant, deformation resistant valve casting of claim 1, wherein: The outer tube (3) is arranged corresponding to the inner tube (2), and the inner diameter of the outer tube (3) is greater than the outer diameter of the inner tube (2), the reinforcing rib (6) is designed in a grid shape inside the inner tube (2), the reinforcing mesh (601) is arranged corresponding to the reinforcing rib (6), and the reinforcing mesh (601) is made of fiber mesh material.

4. The shock resistant, deformation resistant valve casting of claim 1, wherein: The composite coating (202) is composed of a corrosion-resistant layer and a cold-resistant layer, and is used for preventing cracking and corrosion of the inner wall of the inner tube (2).

5. The shock resistant, deformation resistant valve casting of claim 1, wherein: The shock-resistant structure comprises a reinforcing block (7) fixedly installed on the outer wall of the outer tube (3), the inner wall of the outer tube (3) is provided with an elastic sheet (9), and the outer wall of the elastic sheet (9) is provided with a buffer block (8).

6. An anti-vibration, anti-deformation valve casting according to claim 5, characterized in that: The reinforcing block (7) is designed in a ring shape, the cross section of the reinforcing block (7) is designed in a trapezoidal shape, and the reinforcing block (7) is arranged at equal intervals between the inner tube (2) and the outer tube (3).

7. The shock resistant, deformation resistant valve casting of claim 5, wherein: The cross section of the elastic sheet (9) is designed in an arc shape, the elastic sheet (9) is located between the two groups of reinforcing blocks (7), and the elastic sheet (9) is arranged at equal angles on the inner wall of the outer tube (3).

8. The shock resistant, deformation resistant valve casting of claim 5, wherein: The buffer block (8) is made of fiber cotton material, the buffer block (8) is located between the outer tube (3) and the inner tube (2), and the buffer block (8) is arranged corresponding to the elastic sheet (9).

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