One-way valve with good corrosion-resistant effect

Abstract

The utility model discloses a one-way valve with good corrosion-resistant effect, which comprises a valve body, a first limit plate is integrally formed in an inner cavity at one end of the valve body, a first sealing ring is detachably connected to one side, facing the inner cavity of the valve body, of the first limit plate, and the valve body, the first limit plate and the first sealing ring are communicated with one another. Compared with the prior art that the adjusting part is in threaded connection with the valve body, the position of the adjusting part in the inner cavity of the valve body can be adjusted by rotating the adjusting part, when the elastic force of the elastic part is weakened, the adjusting part is in threaded connection with the valve body, and the adjusting part is connected with a ball body through an elastic part, and the ball body can seal the through hole of the first sealing ring. The position of the one-way valve body can be adjusted, the one-way valve body can still have good elasticity, the good sealing effect is achieved, the first limiting plate and the first sealing ring are detachably connected and can be replaced, and the good sealing performance of the one-way valve body is guaranteed in cooperation with the ball.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way valves, in particular to a one-way valve with good corrosion resistance. Background Art

[0002] A one-way valve is a valve that allows the fluid to only flow along the water inlet, but the medium at the water outlet cannot flow back. A one-way valve with good corrosion resistance is usually made of materials with excellent corrosion resistance, such as stainless steel, plastic (such as PVC), etc. Stainless steel has strong corrosion resistance and high temperature resistance. The ball may also be made of stainless steel or other corrosion-resistant materials to adapt to various corrosive media.

[0003] However, the existing one-way valve generally supports the ball by installing a spring inside so that the ball can close one end of the valve body. However, with long-term use, the spring is easily fatigued due to long-term impact, which causes its elastic force to weaken, resulting in a loose seal on one end of the valve body, thereby affecting the use effect of the one-way valve. The valve body is generally an integrated structure, which is not convenient for disassembly and is not conducive to the replacement of components such as the spring and the sealing ring. For this reason, we propose a one-way valve with good corrosion resistance. Utility Model Content

[0004] The utility model aims to provide a one-way valve with good corrosion resistance to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a one-way valve with good corrosion resistance, comprising a valve body, an inner cavity at one end of the valve body is integrally formed with a first limit plate, the first limit plate is detachably connected to a first sealing ring on the side facing the inner cavity of the valve body, the valve body, the first limit plate and the first sealing ring are interconnected, the inner cavity at the other end of the valve body is threadedly connected with an adjusting member, the adjusting member is connected to a ball via an elastic member, and the ball can achieve the closure of the through hole of the first sealing ring.

[0006] Preferably, the adjusting member includes a first connecting member, a second connecting member and a third connecting member, one end of the first connecting member is connected to the second connecting member, the second connecting member is threadedly connected to an end of the valve body away from the first limit plate, a third connecting member is installed on the side of the second connecting member away from the first connecting member, the first connecting member, the second connecting member and the third connecting member are interconnected, and the third connecting member is provided with three groups of through grooves equidistantly spaced around the circumference.

[0007] Preferably, a second limiting plate is integrally formed in the inner cavity of the valve body on the side of the second connecting member facing the third connecting member, so as to limit the position of the second connecting member.

[0008] Preferably, the elastic member is connected to a side of the third connecting member away from the second connecting member, the elastic member includes a telescopic rod and a spring, the side of the third connecting member away from the second connecting member is connected to one end of the telescopic rod, the other end of the telescopic rod is connected to the sphere, and the spring is sleeved on the outside of the telescopic rod.

[0009] Preferably, the first limiting plate is detachably connected to the first sealing ring via screws, and the screws penetrate the first sealing ring and are threadedly connected to the first limiting plate.

[0010] Preferably, a first thread groove is integrally formed at one end of the valve body facing the first limit plate, the inner diameter of the first thread groove is the same as the inner diameter of the valve body, and a second sealing ring is arranged in the inner cavity of the first thread groove, and a second thread groove is integrally formed at the other end of the valve body, the inner diameter of the second thread groove is larger than the inner diameter of the valve body, and a third sealing ring is arranged inside the second thread groove, and the inner diameter of the third sealing ring is smaller than the inner diameter of the valve body.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, since the adjusting member is threadedly connected to the valve body, compared with the prior art, the position of the adjusting member in the inner cavity of the valve body can be adjusted by rotating the adjusting member. When the elastic force of the elastic member is weakened, its position can be adjusted so that it can still have good elasticity and achieve a good sealing effect. The first limit plate and the first sealing ring are detachably connected and can be replaced, and cooperate with the ball to ensure good sealing of the one-way valve body.

[0013] 2. In the utility model, when the fluid enters along one end of the valve body close to the first limit plate, it will impact the ball, drive the elastic member to compress, and release the ball from sealing the through hole of the first sealing ring, so that the fluid can flow out from the other end of the valve body. On the contrary, the ball that is not impacted is pushed by the elastic member to close the through hole of the first sealing ring, so that the fluid cannot flow out, thus achieving one-way flow.

[0014] 3. The first connecting piece of the utility model is a hexagonal structure. By rotating the first connecting piece, the second connecting piece can be driven to rotate. Since it is threadedly connected to the valve body, its position can be adjusted to push the third connecting piece, driving the telescopic rod and the ball to move in the direction of the first sealing ring. The elastic force of the spring pushes the ball to seal the first sealing ring. When the elastic force of the spring weakens, it can still have a good sealing effect. When the seal on the first sealing ring is released, the fluid can flow out from the through groove, that is, flow out from the other end of the valve body. After removing the adjusting piece, the screw can be turned with a screwdriver to complete the replacement of the aged first sealing ring to ensure good sealing of the valve body.

[0015] 4. In the utility model, since the inner diameter of the first thread groove is the same as the inner diameter of the valve body, and a second sealing ring is arranged in the inner cavity of the first thread groove, it can play a sealing role when connecting the pipeline and is not prone to leakage. The inner diameter of the second thread groove is larger than the inner diameter of the valve body, and a third sealing ring is arranged inside the second thread groove. The inner diameter of the third sealing ring is smaller than the inner diameter of the valve body, which can avoid leakage at the connection with the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a sectional exploded view of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the overall structure of the utility model.

[0019] In the figure: 1, valve body, 2, first limit plate, 3, first sealing ring, 4, ball, 5, first connecting piece, 6, second connecting piece, 7, third connecting piece, 8, through groove, 9, telescopic rod, 10, spring, 11, second limit plate, 12, screw, 13, first thread groove, 14, second sealing ring, 15, second thread groove, 16, third sealing ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] Please refer to Figure 1-3 As shown, the utility model provides a one-way valve with good corrosion resistance, including a valve body 1, an inner cavity at one end of the valve body 1 is integrally formed with a first limit plate 2, the first limit plate 2 is detachably connected to a first sealing ring 3 on the side facing the inner cavity of the valve body 1, the valve body 1, the first limit plate 2 and the first sealing ring 3 are interconnected, the inner cavity at the other end of the valve body 1 is threadedly connected with an adjusting member, the adjusting member is connected to a ball 4 through an elastic member, and the ball 4 can achieve the closure of the through hole of the first sealing ring 3.

[0023] In this embodiment, the valve body 1 and other components are made of corrosion-resistant materials to enhance their corrosion resistance. When the fluid enters along one end of the valve body 1 close to the first limit plate 2, it will impact the ball 4, drive the elastic member to compress, and release the seal of the ball 4 on the through hole of the first sealing ring 3, so that the fluid can flow out from the other end of the valve body 1. On the contrary, the ball 4 that is not impacted is pushed by the elastic member to close the through hole of the first sealing ring 3, so that the fluid cannot flow out, thereby achieving one-way circulation. Since the adjusting member is threadedly connected to the valve body 1, compared with the prior art, its position in the inner cavity of the valve body 1 can be adjusted by rotating the adjusting member. When the elastic force of the elastic member is weakened, its position can be adjusted so that it still has good elasticity and achieves a good sealing effect. The first limit plate 2 is detachably connected to the first sealing ring 3 and can be replaced. In cooperation with the ball 4, the good sealing of the one-way valve body 1 is ensured.

[0024] Please refer to Figure 1-3 As shown, the regulating member includes a first connecting member 5, a second connecting member 6 and a third connecting member 7. One end of the first connecting member 5 is connected to the second connecting member 6. The second connecting member 6 is threadedly connected to one end of the valve body 1 away from the first limit plate 2. The third connecting member 7 is installed on the side of the second connecting member 6 away from the first connecting member 5. The first connecting member 5, the second connecting member 6 and the third connecting member 7 are interconnected. The third connecting member 7 is circumferentially equidistantly penetrated and has three groups of through grooves 8. The inner cavity of the valve body 1 is located on the side of the second connecting member 6 facing the third connecting member 7. A second limiting plate 11 is formed in the body, which can limit the second connecting member 6. The side of the third connecting member 7 away from the second connecting member 6 is connected to an elastic member, and the elastic member includes a telescopic rod 9 and a spring 10. The side of the third connecting member 7 away from the second connecting member 6 is connected to one end of the telescopic rod 9, and the other end of the telescopic rod 9 is connected to the sphere 4. The spring 10 is sleeved on the outside of the telescopic rod 9. The first limiting plate 2 and the first sealing ring 3 are detachably connected by screws 12, and the screws 12 penetrate the first sealing ring 3 and are threadedly connected to the first limiting plate 2.

[0025] In this embodiment, the first connecting member 5 is a hexagonal structure. By rotating the first connecting member 5, the second connecting member 6 can be driven to rotate. Since it is threadedly connected to the valve body 1, its position can be adjusted to push the third connecting member 7, driving the telescopic rod 9 and the ball 4 to move in the direction of the first sealing ring 3. The elastic force of the spring 10 pushes the ball 4 to seal the first sealing ring 3. When the elastic force of the spring 10 weakens, it can still have a good sealing effect. When the seal on the first sealing ring 3 is released, the fluid can flow out from the through groove 8, that is, it can flow out from the other end of the valve body 1. After removing the adjusting member, the screw 12 can be turned with a screwdriver to complete the replacement of the aged first sealing ring 3 to ensure the good sealing of the valve body 1.

[0026] Please refer to Figure 1-3As shown, a first thread groove 13 is integrally formed at one end of the valve body 1 facing the first limit plate 2, the inner diameter of the first thread groove 13 is the same as the inner diameter of the valve body 1, and a second sealing ring 14 is arranged in the inner cavity of the first thread groove 13, and a second thread groove 15 is integrally formed at the other end of the valve body 1, the inner diameter of the second thread groove 15 is larger than the inner diameter of the valve body 1, and a third sealing ring 16 is arranged inside the second thread groove 15, and the inner diameter of the third sealing ring 16 is smaller than the inner diameter of the valve body 1.

[0027] In this embodiment, since the inner diameter of the first thread groove 13 is the same as the inner diameter of the valve body 1, and a second sealing ring 14 is arranged in the inner cavity of the first thread groove 13, it can play a sealing role when connecting the pipeline, and leakage is not easy to occur. The inner diameter of the second thread groove 15 is larger than the inner diameter of the valve body 1, and a third sealing ring 16 is arranged inside the second thread groove 15. The inner diameter of the third sealing ring 16 is smaller than the inner diameter of the valve body 1, which can avoid leakage at the connection with the pipeline.

[0028] Working principle: First, since the inner diameter of the first thread groove 13 is the same as the inner diameter of the valve body 1, and the second sealing ring 14 is arranged in the inner cavity of the first thread groove 13, it can play a sealing role when connecting the pipeline, and it is not easy to leak. The inner diameter of the second thread groove 15 is larger than the inner diameter of the valve body 1, and the third sealing ring 16 is arranged inside the second thread groove 15. The inner diameter of the third sealing ring 16 is smaller than the inner diameter of the valve body 1, which can avoid leakage at the connection with the pipeline. The first connecting member 5 is a hexagonal structure. By rotating the first connecting member 5, the second connecting member 6 can be driven to rotate. Since it is threadedly connected to the valve body 1, its position can be adjusted to push the third connecting member 7, drive the telescopic rod 9 and the ball 4 to move in the direction of the first sealing ring 3, and the elastic force of the spring 10 pushes the ball 4 to block the first sealing ring 3. When the elastic force of the spring 10 weakens, it can still have a good sealing effect. When the seal on the first sealing ring 3 is released, the fluid can flow out from the through groove 8. , it can flow out from the other end of the valve body 1. After the adjusting member is removed, the screw 12 can be turned with a screwdriver to complete the replacement of the aged first sealing ring 3 to ensure the good sealing of the valve body 1. The fluid enters along one end of the valve body 1 close to the first limiting plate 2, which will impact the ball 4, drive the elastic member to compress, and release the seal of the through hole of the first sealing ring 3 of the ball 4, so that the fluid can flow out from the other end of the valve body 1. On the contrary, the ball 4 that has not been impacted is pushed by the elastic member to close the through hole of the first sealing ring 3, so that the fluid cannot flow out and one-way flow is achieved. Since the adjusting member is threadedly connected to the valve body 1, compared with the prior art, the position of the adjusting member in the inner cavity of the valve body 1 can be adjusted by rotating the adjusting member. When the elastic force of the elastic member is weakened, its position can be adjusted so that it can still have good elasticity and achieve a good sealing effect. The first limiting plate 2 is detachably connected to the first sealing ring 3 and can be replaced. Cooperating with the ball 4 to ensure the good sealing of the one-way valve body 1.

[0029] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A one-way valve with good corrosion resistance, comprising a valve body (1), characterized in that: The inner cavity at one end of the valve body (1) is integrally formed with a first limit plate (2), and the first limit plate (2) is detachably connected to a first sealing ring (3) on the side facing the inner cavity of the valve body (1). The valve body (1), the first limit plate (2) and the first sealing ring (3) are interconnected. The inner cavity at the other end of the valve body (1) is threadedly connected with an adjusting member, and the adjusting member is connected to a ball (4) via an elastic member, and the ball (4) can achieve sealing of the through hole of the first sealing ring (3).

2. A one-way valve with good corrosion resistance according to claim 1, characterized in that: The regulating member comprises a first connecting member (5), a second connecting member (6) and a third connecting member (7); one end of the first connecting member (5) is connected to the second connecting member (6); the second connecting member (6) is threadedly connected to one end of the valve body (1) away from the first limit plate (2); the third connecting member (7) is installed on the side of the second connecting member (6) away from the first connecting member (5); the first connecting member (5), the second connecting member (6) and the third connecting member (7) are interconnected; the third connecting member (7) is provided with three groups of through grooves (8) equidistantly extending therethrough in a circle.

3. A one-way valve with good corrosion resistance according to claim 2, characterized in that: The inner cavity of the valve body (1) is integrally formed with a second limiting plate (11) on the side of the second connecting piece (6) facing the third connecting piece (7), which can limit the position of the second connecting piece (6).

4. A one-way valve with good corrosion resistance according to claim 3, characterized in that: The elastic member is connected to a side of the third connecting member (7) away from the second connecting member (6), and the elastic member comprises a telescopic rod (9) and a spring (10). The side of the third connecting member (7) away from the second connecting member (6) is connected to one end of the telescopic rod (9), and the other end of the telescopic rod (9) is connected to the ball (4). The spring (10) is sleeved on the outside of the telescopic rod (9).

5. A one-way valve with good corrosion resistance according to claim 1, characterized in that: The first limiting plate (2) and the first sealing ring (3) are detachably connected via screws (12), and the screws (12) penetrate the first sealing ring (3) and are threadedly connected to the first limiting plate (2).

6. A one-way valve with good corrosion resistance according to claim 1, characterized in that: A first thread groove (13) is integrally formed at one end of the valve body (1) facing the first limit plate (2), the inner diameter of the first thread groove (13) is the same as the inner diameter of the valve body (1), and a second sealing ring (14) is arranged in the inner cavity of the first thread groove (13), and a second thread groove (15) is integrally formed at the other end of the valve body (1), the inner diameter of the second thread groove (15) is larger than the inner diameter of the valve body (1), and a third sealing ring (16) is arranged inside the second thread groove (15), and the inner diameter of the third sealing ring (16) is smaller than the inner diameter of the valve body (1).

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