Valve with friction piece easy to replace

Abstract

The utility model provides a friction piece easy-to-replace type valve, which comprises a valve body, a valve seat, a valve ball, a valve rod, a sealing piece and a pressing block, the valve seat is fixedly arranged at the bottom of the valve body, the valve ball is rotatably arranged in the valve body, and the valve rod is fixedly arranged at the top of the valve ball; the sealing pieces are clamped and installed in the two ends of the valve body, and the pressing blocks are fixedly installed at the two ends of the valve body. The bottom of the valve seat is fixedly mounted on the mounting bottom plate; the top end of the valve rod is fixedly mounted on the driving handle; due to the arrangement of the valve body and the pressing block, the sealing piece is easy to replace after being rubbed for a long time, and the sealing performance cannot be reduced after replacement.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve with easily replaceable friction parts. Background Art

[0002] Valves, as key components in piping systems, are widely used in numerous industries, including petroleum, chemical engineering, metallurgy, and water treatment. Their primary function is to open, close, or regulate the flow of fluids, ensuring safe and efficient fluid transportation. With the development of modern industry, valve reliability, sealing, and ease of maintenance have become key concerns.

[0003] Traditional valve designs are often complex, especially for valves used for extended periods. Internal components such as seals, stems, and balls are susceptible to erosion and wear from fluids, as well as temperature and pressure fluctuations, leading to seal failure, leakage, and even valve malfunction. Once a valve problem occurs, particularly seal damage, the entire valve must be disassembled for complex repair or replacement, increasing not only equipment downtime but also maintenance costs.

[0004] Seals are key components in valve construction, directly impacting valve sealing performance. However, because seals come into contact with components like the valve ball and seat, they are subject to fluid pressure, temperature, friction, and corrosion. Over time, these seals can easily wear, age, or fail. Prompt replacement of seals is crucial; otherwise, fluid leakage can occur, potentially leading to safety incidents.

[0005] Replacing seals in traditional valves is a complex process, often requiring complete valve disassembly and tedious maintenance. This is particularly problematic in pipeline systems, where valves are often installed in cramped locations. Furthermore, valves used in high-temperature, high-pressure, or corrosive environments have shorter seal lifespans, further increasing the need for frequent maintenance and increasing industrial operating costs.

[0006] Therefore, it is very necessary to invent a kind of friction piece easy-change valve. Utility Model Content

[0007] In order to solve the above technical problems, the utility model provides a friction-replaceable valve to address the problem in existing valves that the seals are difficult to replace after being subjected to friction for a long time, and the sealing performance is easily reduced after replacement. The friction-replaceable valve includes a valve body, a valve seat, a valve ball, a valve stem, a seal, and a pressure block, wherein: the valve seat is fixedly mounted on the bottom of the valve body, the valve ball is rotatably mounted inside the valve body, and the valve stem is fixedly mounted on the top of the valve ball; the seals are clamped and mounted inside the two ends of the valve body, and the pressure blocks are fixedly mounted on both ends of the valve body.

[0008] The bottom of the valve seat is fixedly mounted on the mounting base plate.

[0009] The top end of the valve stem is fixedly mounted on the driving handle.

[0010] The valve body includes a valve body base, a valve stem rotation groove, a seal installation groove and a connecting bolt hole, and the valve stem rotation groove is fixedly installed in the middle of the top of the valve body base, and the seal installation groove is opened inside the two ends of the valve body base; the connecting bolt hole is arranged at the top and bottom of the valve body base.

[0011] The pressure block includes a support body, a connecting plate, a sealing pressure ring and a guide slope, and the connecting plate is fixedly installed at one end of the support body, and the connecting plate is fixedly installed at the outer end of the valve body; the sealing pressure ring is fixedly installed on the outer wall of the connecting plate, and the guide slope is arranged on the inner wall of the support body.

[0012] The valve bodies are in a pair and are mirror images of each other, and the two groups of valve bodies can be connected together by bolts through their internal connecting bolt holes. The seal mounting grooves inside the two ends of the valve body base adopt semicircular grooves; the seal mounting grooves inside the valve body base of the two groups are spliced to form an annular groove, and the internal engagement fixes the seal, which has the following functions: ① Seal mounting groove design: The seal mounting grooves at both ends of the valve body adopt a semicircular structure, which is designed to facilitate the quick installation and removal of seals. After the two groups of valve bodies are spliced, the seal mounting groove forms an annular groove to firmly fix the seal. This design can not only ensure the sealing effect, but also quickly remove the seal for replacement when needed, reducing maintenance time; ② Modular structure for easy disassembly: The valve body is bolted to other components through connecting bolt holes. This modular design makes it easy to remove the old seal and replace it with a new seal by simply removing the bolts and separating the two parts of the valve body when the seal needs to be replaced.

[0013] Two groups of pressure blocks are used and are installed at both ends of the valve body in a mirror-image manner; the sealing pressure ring is an annular stainless steel metal block, and the sealing pressure ring contacts the seal after the pressure block is installed at both ends of the valve body; the guide slope is an annular slope, and the size of the small diameter end of the guide slope is consistent with the size of the guide hole inside the seal, and has the following functions: ① Fix the seal: the pressure block presses and fixes the seal through the sealing pressure ring to ensure that it is firmly installed in the seal installation groove of the valve body, so that when the valve is closed, the seal can effectively prevent fluid leakage; ② Easy to disassemble and replace the seal: the pressure block adopts a mirror-symmetrical design and is installed at both ends of the valve body. Its modular structure makes it possible to easily remove and replace the seal by simply disassembling the pressure block when the seal needs to be replaced. This design improves the maintenance efficiency of the valve and reduces the complexity of replacing the seal.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The setting of the valve body of the utility model has the following functions: ① Seal installation groove design: the seal installation grooves at both ends of the valve body adopt a semicircular structure, which is designed to facilitate the quick installation and removal of seals. After the two sets of valve bodies are spliced, the seal installation grooves form an annular groove to firmly fix the seals. This design can not only ensure the sealing effect, but also quickly remove the seals for replacement when needed, reducing maintenance time; ② Modular structure for easy disassembly: the valve body is connected to other components by bolts through connecting bolt holes. This modular design makes it easy to remove the old seals and replace them with new ones by simply removing the bolts and separating the two parts of the valve body when the seals need to be replaced.

[0016] The setting of the pressure block of the utility model has the following functions: 1) fixing the seal: the pressure block presses and fixes the seal through the seal pressure ring to ensure that it is firmly installed in the seal installation groove of the valve body, so as to ensure that the seal can effectively prevent fluid leakage when the valve is closed; 2) easy disassembly and replacement of the seal: the pressure block adopts a mirror-symmetrical design and is installed at both ends of the valve body. Its modular structure makes it possible to easily remove and replace the seal by simply disassembling the pressure block when the seal needs to be replaced. This design improves the maintenance efficiency of the valve and reduces the complexity of replacing the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 It is a structural schematic diagram of the valve body of the utility model.

[0019] Figure 3 It is a structural diagram of the pressing block of the utility model.

[0020] In the picture:

[0021] Valve body 1, valve body base 11, valve stem rotation groove 12, seal installation groove 13, connecting bolt hole 14, valve seat 2, mounting base plate 3, valve ball 4, valve stem 5, drive handle 6, seal 7, pressure block 8, support body 81, connecting plate 82, seal pressure ring 83, guide slope 84. DETAILED DESCRIPTION

[0022] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0023] As attached Figure 1 To the attached Figure 3 shown.

[0024] The utility model provides a friction part easy-replacement valve, comprising a valve body 1, a valve seat 2, a valve ball 4, a valve stem 5, a sealing member 7 and a pressure block 8, wherein: the valve seat 2 is fixedly mounted on the bottom of the valve body 1, and the valve ball 4 is rotatably mounted inside the valve body 1, and the valve stem 5 is fixedly mounted on the top of the valve ball 4; the sealing member 7 is clamped and mounted inside the two ends of the valve body 1, and the pressure block 8 is fixedly mounted on both ends of the valve body 1.

[0025] The bottom of the valve seat 2 is fixedly mounted on the mounting base plate 3 .

[0026] The top end of the valve stem 5 is fixedly mounted on the driving handle 6 .

[0027] The valve body 1 includes a valve body base 11, a valve stem rotation groove 12, a seal installation groove 13 and a connecting bolt hole 14, and the valve stem rotation groove 12 is fixedly installed in the middle of the top of the valve body base 11, and the seal installation groove 13 is opened inside the two ends of the valve body base 11; the connecting bolt hole 14 is arranged at the top and bottom of the valve body base 11.

[0028] The pressure block 8 includes a support body 81, a connecting plate 82, a sealing pressure ring 83 and a guide slope 84, and the connecting plate 82 is fixedly mounted on one end of the support body 81, and the connecting plate 82 is fixedly mounted on the outer end of the valve body 1; the sealing pressure ring 83 is fixedly mounted on the outer wall of the connecting plate 82, and the guide slope 84 is arranged on the inner wall of the support body 81.

[0029] The valve bodies 1 are in pairs and mirror images of each other, and the two groups of valve bodies 1 can be connected together by bolts through their internal connecting bolt holes 14. The seal mounting grooves 13 inside the two ends of the valve body base 11 are semicircular grooves; the seal mounting grooves 13 inside the two groups of valve body bases 11 can be spliced to form an annular groove, in which the seal 7 is fixed.

[0030] Two groups of pressure blocks 8 are used and are installed at both ends of the valve body 1 in a mirror-image manner; the sealing pressure ring 83 is an annular stainless steel metal block, and the sealing pressure ring 83 contacts the seal 7 after the pressure blocks 8 are installed at both ends of the valve body 1; the guide slope 84 is an annular slope, and the size of the small diameter end of the guide slope 84 is consistent with the size of the guide hole inside the seal 7.

[0031] The working principle of the friction-replaceable valve is based on the coordinated operation of key components such as the valve body, valve ball, valve stem, seals, and pressure blocks to achieve fluid control, sealing, and rapid maintenance. The following is a description of the working principle of the valve:

[0032] 1. Basic principles of valve opening and closing

[0033] The friction-part replaceable valve controls the flow of fluid by rotating the valve ball 4. When the drive handle 6 is rotated, the valve stem 5 drives the valve ball 4 to rotate around the axis. There is a through hole inside the valve ball that is connected to the pipeline. As the valve ball rotates 90 degrees, the through hole aligns with the pipeline, allowing fluid to pass through. At this time, the valve is in the open state; on the contrary, when the valve ball rotates 90 degrees, the through hole is perpendicular to the pipeline, the fluid is blocked, and the valve is in the closed state.

[0034] 2. Sealing principle

[0035] The sealing performance of the valve depends on the cooperation between the sealing member 7 and the pressure block 8. When the valve ball 4 is in the closed state, the sealing member 7 inside the valve body 1 is in close contact with the valve ball and the inner wall of the valve body under the pressure of the pressure block 8, forming an effective sealing structure. The sealing member pressure ring 83 in the pressure block presses the sealing member to ensure that no matter how the pressure of the fluid changes, the sealing at both ends of the valve can be maintained stably and reliably to prevent fluid leakage.

[0036] 3. Diversion function

[0037] When the fluid passes through the valve, the guide slope 84 inside the pressure block 8 guides the fluid to pass smoothly through the valve body 1 and the valve ball 4, reducing flow resistance and avoiding wear caused by the fluid impacting the seal 7. The design of the guide slope helps to evenly distribute the fluid pressure and extend the service life of the seal.

[0038] 4. The principle of easy replacement of seals

[0039] The focus of the friction-replaceable valve design is the convenience of replacing the seal 7. Seal mounting grooves 13 are provided at both ends of the valve body 1. The seal is fixed in the mounting groove by a pressure block 8. When the seal needs to be replaced, just loosen the bolts on the pressure block and remove the pressure block 8 to easily remove the seal 7 without disassembling the entire valve. This modular design greatly simplifies the maintenance process, reduces downtime and operational difficulty.

[0040] 5. Structural stability and easy maintenance

[0041] The symmetrical mirror design of the valve body 1 and the pressure block 8, as well as the fixation through the connecting bolts 14, make the entire valve structure stable and reliable. The valve stem rotation groove 12 provides space for the valve stem to rotate, ensuring smooth operation of the valve ball when opening and closing. At the same time, the bolt connection method makes the disassembly and maintenance of the valve very convenient, especially when the seal needs to be replaced, the replacement operation can be completed quickly to ensure the long-term normal operation of the valve.

[0042] 6. Summary

[0043] The working principle of the friction-replaceable valve is mainly reflected in the control, sealing and rapid maintenance of the fluid. The opening and closing of the fluid are controlled by the rotation of the valve ball. The close fit between the seal and the pressure block ensures efficient sealing performance. The guide slope optimizes the flow of the fluid. The modular design simplifies the replacement process of the seal. This design not only improves the service life of the valve, but also greatly reduces the difficulty and cost of maintenance.

[0044] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the scope of protection of the utility model.

Claims

1. A friction part easily replaceable valve, characterized by: The valve body (1) comprises a valve seat (2), a valve ball (4), a valve stem (5), a sealing member (7) and a pressure block (8), wherein: the valve seat (2) is fixedly mounted on the bottom of the valve body (1), and the valve ball (4) is rotatably mounted inside the valve body (1), and the valve stem (5) is fixedly mounted on the top of the valve ball (4); the sealing member (7) is snap-fitted and mounted inside both ends of the valve body (1), and the pressure block (8) is fixedly mounted on both ends of the valve body (1).

2. The friction member easily replaceable valve according to claim 1, characterized in that: The bottom of the valve seat (2) is fixedly mounted on the mounting base plate (3).

3. The friction member easily replaceable valve according to claim 1, characterized in that: The top end of the valve stem (5) is fixedly mounted on the driving handle (6).

4. The friction member easily replaceable valve according to claim 1, characterized in that: The valve body (1) includes a valve body base (11), a valve stem rotation groove (12), a seal installation groove (13) and a connecting bolt hole (14), and the valve stem rotation groove (12) is fixedly installed in the middle of the top of the valve body base (11), and the seal installation groove (13) is opened inside the two ends of the valve body base (11); the connecting bolt hole (14) is set at the top and bottom of the valve body base (11).

5. The friction member easily replaceable valve according to claim 3, characterized in that: The pressure block (8) comprises a support body (81), a connecting plate (82), a sealing member pressure ring (83) and a flow guide slope (84), wherein the connecting plate (82) is fixedly mounted on one end of the support body (81), and the connecting plate (82) is fixedly mounted on the outer end of the valve body (1); the sealing member pressure ring (83) is fixedly mounted on the outer wall of the connecting plate (82), and the flow guide slope (84) is arranged on the inner wall of the support body (81).

6. The friction member easily replaceable valve according to claim 4, characterized in that: The valve bodies (1) are in a pair and are mirror images of each other, and the two groups of valve bodies (1) can be connected together by bolts through their internal connecting bolt holes (14). The sealing member installation grooves (13) inside the two ends of the valve body base (11) are semicircular grooves; the sealing member installation grooves (13) inside the two groups of valve body bases (11) can be spliced to form an annular groove, and the sealing member (7) is fixed inside the annular groove.

7. The friction member easily replaceable valve according to claim 5, characterized in that: The pressure blocks (8) are provided in two groups and are mounted at both ends of the valve body (1) in a mirror-image manner. The sealing member pressure ring (83) is provided in an annular stainless steel metal block, and the sealing member pressure ring (83) contacts the sealing member (7) after the pressure blocks (8) are mounted at both ends of the valve body (1). The flow guide bevel (84) is provided in an annular bevel, and the size of the small diameter end of the flow guide bevel (84) is consistent with the size of the guide hole inside the sealing member (7).

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