Valve

Abstract

The utility model discloses a valve which comprises a valve body and a valve core, the valve core comprises a valve plate, the valve plate is rotatably connected in the valve body, the outer wall of the valve plate is fixedly connected with a wear-resistant structure matched with the inner wall of the valve body, the wear-resistant structure comprises a wear-resistant convex edge, and the wear-resistant convex edge is integrally formed on the outer edge of the valve plate. An elastic part matched with the inner wall of the valve body is fixedly connected to the anti-abrasion protruding edge, a limiting clamping groove matched with the clamping block is formed in the anti-abrasion protruding edge, the clamping block is clamped in the limiting clamping groove, an air bag is integrally formed on the side wall, away from the anti-abrasion protruding edge, of the clamping block, and an arc-shaped groove matched with the air bag is formed in the inner wall of the valve body. And a plurality of uniformly distributed reinforcing ribs are fixedly connected to the valve plate. Compared with the prior art, the valve has the advantages that friction between the valve plate and the valve body can be reduced, the situation that the valve plate deforms due to friction between the valve plate and the valve body can be reduced, and the service life of the valve plate and the service life of the valve body can be prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, specifically relating to a valve. Background Technology

[0002] Butterfly valves are widely used devices in fluid control, mainly composed of core components such as the valve body, valve disc, and sealing ring. However, traditional butterfly valves suffer from significant sealing and wear problems in design and application, limiting their performance and service life.

[0003] In terms of sealing, the main problem with traditional butterfly valves is that the sealing performance between the valve disc and the inner wall of the valve body is insufficient, which easily forms gaps and leads to media leakage, especially under high pressure or high flow rate conditions.

[0004] Regarding wear, the valve disc and the inner wall of the valve body are prone to frictional wear during frequent operation. Insufficient sealing performance and the presence of gaps accelerate wear, increasing friction between the valve disc and the inner wall of the valve body, thus affecting the smooth rotation of the valve disc and the normal operation of the butterfly valve. Long-term wear also reduces the fitting precision between the valve disc and the inner wall of the valve body, further weakening the sealing performance and creating a vicious cycle. Furthermore, if the medium contains hard particles or impurities, these particles may become stuck between the valve disc and the inner wall of the valve body, causing scratches or even deformation on the valve disc surface, further exacerbating sealing problems and increasing wear.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide a valve that can solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0008] A valve includes a valve body and a valve core, the valve core including a valve disc rotatably connected to the valve body, and a wear-resistant structure matching the inner wall of the valve body fixedly connected to the outer wall of the valve disc.

[0009] In one or more embodiments of the present invention, the wear-resistant structure includes an anti-wear protrusion, which is integrally formed on the outer edge of the valve plate.

[0010] In one or more embodiments of this utility model, an elastic part that matches the inner wall of the valve body is fixedly connected to the anti-wear protrusion.

[0011] In one or more embodiments of this utility model, the elastic part includes an airbag, and the anti-wear protrusion is provided with a limiting groove that matches the locking block, and the locking block is engaged in the limiting groove.

[0012] In one or more embodiments of this utility model, an airbag is integrally formed on the side wall of the card block away from the anti-wear protrusion.

[0013] In one or more embodiments of this utility model, an elastic part that matches the inner wall of the valve body is fixedly connected to the anti-wear protrusion.

[0014] In one or more embodiments of this utility model, the elastic part includes an airbag, and the anti-wear protrusion is provided with a limiting groove that matches the locking block, and the locking block is engaged in the limiting groove.

[0015] In one or more embodiments of this utility model, an airbag is integrally formed on the side wall of the card block away from the anti-wear protrusion.

[0016] In one or more embodiments of this utility model, the inner wall of the valve body is provided with an arc-shaped groove that matches the air bladder.

[0017] In one or more embodiments of this utility model, a plurality of uniformly distributed reinforcing ribs are fixedly connected to the valve plate.

[0018] Compared with the prior art, the valve of this utility model can reduce the friction between the valve plate and the valve body, and also reduce the deformation of the valve plate caused by the friction between the valve plate and the valve body, which helps to extend the service life of the valve plate and the valve body. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a valve in one embodiment of the present invention;

[0021] Figure 2 This is an exploded view of the valve core in one embodiment of the present invention;

[0022] Figure 3 This is a partial cross-sectional view of the valve core in one embodiment of the present invention;

[0023] Figure 4 for Figure 3 Schematic diagram of the structure at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the valve body in one embodiment of the present invention.

[0025] Explanation of key figure labels:

[0026] 1. Valve body; 101. Arc groove; 2. Valve core; 3. Valve stem; 4. Valve plate; 5. Anti-wear protrusion; 501. Limiting groove; 6. Elastic part; 601. Air bladder; 602. Locking block; 7. Reinforcing rib; 8. Mounting platform; 801. Waist hole. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0028] like Figure 1 As shown, a valve in one embodiment of the present invention includes a valve body 1, and a valve core 2 is installed inside the valve body 1. The valve body 1 and the valve core 2 cooperate to open or close the valve.

[0029] Among them, such as Figures 2-4 As shown, the valve core 2 includes a valve stem 3 and a valve plate 4. The valve stem 3 passes through the valve plate 4, and both ends of the valve stem 3 are rotatably connected to the valve body 1. During the rotation, the valve stem 3 can carry the valve plate 4 to rotate inside the valve core 2.

[0030] like Figures 2-4 As shown, a wear-resistant mechanism matching the inner wall of the valve body 1 is fixedly connected to the outer wall of the valve plate 4. This wear-resistant mechanism reduces the wear caused by particles getting stuck between the valve plate 4 and the inner wall of the valve body 1, largely preventing the valve from being affected by wear. Furthermore, the outer diameter of the wear-resistant mechanism is larger than the outer diameter of the outer edge of the valve plate 4, providing reinforcement to the outer edge of the valve plate 4 and minimizing the possibility of deformation of the valve plate 4 due to particles being located between it and the valve body 1 during the valve plate 4 closing process.

[0031] Specifically, such as Figures 2-4As shown, the wear-resistant mechanism includes an anti-wear protrusion 5, which can be made of materials with excellent wear resistance, such as ultra-high molecular weight polyethylene, PEEK, or special alloy materials. Alternatively, the anti-wear protrusion 5 can be made of the same material as the valve plate 4. During production, the valve plate 4 and the anti-wear protrusion 5 are integrally formed, and a larger anti-wear protrusion 5 increases the strength of the valve plate 4.

[0032] like Figures 2-4 As shown, in order to further improve the service life of the valve plate 4 and the sealing performance of the valve core 2 and the valve body 1, an elastic part 6 is also fixedly connected to the outside of the anti-wear protrusion 5.

[0033] like Figures 2-4 As shown, the elastic part 6 includes a locking block 602. A limiting groove 501 matching the locking block 602 is provided on the anti-wear protrusion 5. The locking block 602 is I-shaped, and the limiting groove 501 is T-shaped. The locking block 602 can be engaged in the limiting groove 501. When the valve plate 4 is in the closed state, the locking block 602 is located between the anti-wear protrusion 5 and the inner wall of the valve body 1, making the fit between the anti-wear protrusion 5 and the inner wall of the valve body 1 an interference fit, which to a certain extent improves the sealing performance of the valve body 1 and the valve core 2 when used together.

[0034] like Figures 2-4 As shown, an airbag 601 is fixedly connected to the end of the locking block 602 away from the anti-wear protrusion 5. If the locking block 602 is equipped with an airbag 601, when the valve core 2 is in the closed state, there is a certain gap between the locking block 602 and the inner wall of the valve body 1, and this gap is sealed by the locking block 602. The locking block 602 has high elasticity and good explosion-proof performance, and its material is generally rubber. When the valve core 2 is in the closed state, if there are particles between the locking block 602 and the valve body 1, the locking block 602 will deform according to the shape of the particles, and the locking block 602 can still maintain good sealing performance. If the particles are located on the side of the locking block 602, the elastic locking block 602 can bounce the particles away, reducing friction between the particles and the valve body 1, and to a certain extent improving the service life of the valve body 1.

[0035] like Figure 5 As shown, the valve body 1 has an arc-shaped groove 101 that matches the locking block 602. When the valve core 2 is in the closed state, the locking block 602 is located in the arc-shaped groove 101. The moment the locking block 602 enters the arc-shaped groove 101, it can be felt by the valve stem 3, and the operator can also judge whether the valve core 2 is completely closed. In addition, the cooperation between the locking block 602 and the arc-shaped groove 101 ensures the sealing performance of the valve core 2 and the valve body 1. If particles are located in the arc-shaped groove 101, the locking block 602 deforms, and the outer wall of the locking block 602 contacts the inner wall of the arc-shaped groove 101.

[0036] like Figure 1As shown, a mounting platform 8 matching the valve stem 3 is fixedly connected to the valve body 1. The mounting platform 8 has multiple slots 801, allowing the motor driving the valve stem 3 to be mounted on the mounting platform 8. The slots 801 enable the mounting platform 8 to accommodate motors of different specifications.

[0037] As shown in the figure, multiple reinforcing ribs 7 are fixedly connected to the valve plate 4. The multiple reinforcing ribs 7 can further improve the strength of the valve plate 4 and reduce the possibility of deformation of the valve plate 4.

[0038] During installation, the valve plate 4 is disassembled, and then the airbag 601 is installed in the limit slot 501 via the locking block 602. The valve plate 4 is then reassembled. The cooperation between the limit slot 501 and the locking block 602 also facilitates replacement and reduces replacement costs.

[0039] In use, first assemble the valve body 1 and valve core 2. After assembly, rotate the valve stem 3. The valve stem 3, carrying the valve disc 4, rotates inside the valve core 2. When the outer wall of the valve disc 4 contacts the inner wall of the valve body 1, the elastic part 6 is located between the valve disc 4 and the valve body 1, filling the gap between them and ensuring an interference fit between the outer wall of the valve disc 4 and the inner wall of the valve body 1. During the closing process of the valve core 2, the elastic part 6 will first contact the inner wall of the valve body 1, which also helps to clean the inner wall of the valve body 1, reducing the amount of particles stuck between the valve body 1 and the valve core 2. This helps to extend the service life of the valve.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A valve, comprising a valve body and a valve core, characterized in that, The valve core includes a valve plate, which is rotatably connected to the valve body. A wear-resistant structure matching the inner wall of the valve body is fixedly connected to the outer wall of the valve plate. The wear-resistant structure includes an anti-wear protrusion, which is integrally formed on the outer edge of the valve plate; An elastic part that matches the inner wall of the valve body is fixedly connected to the anti-wear protrusion. The elastic part includes an airbag, and the anti-wear protrusion has a limiting groove that matches the locking block, and the locking block is engaged in the limiting groove.

2. The valve according to claim 1, characterized in that, The airbag is integrally molded on the side wall of the block away from the anti-wear protrusion.

3. The valve according to claim 1, characterized in that, The inner wall of the valve body is provided with an arc-shaped groove that matches the airbag.

4. A valve according to claim 1 or 3, characterized in that, The valve plate is fixedly connected with several evenly distributed reinforcing ribs.

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