Rubber one-way valve with anti-deformation supporting structure

Abstract

The utility model discloses a rubber one-way valve with an anti-deformation supporting structure, which relates to the technical field of one-way valves, and comprises a mounting pipe, water pipes and a mounting cavity, the water pipes are clamped and connected to two sides of the mounting pipe, the mounting cavity is arranged in the middle of the interior of the mounting pipe, and fixing rings are fixedly connected to two ends of the interior of the mounting cavity. A positioning rod is fixedly connected between the two fixing rings, a sliding sleeve is slidably connected to the outer side of the positioning rod, and a movable ring is fixedly connected to the outer side of the middle of the sliding sleeve. According to the rubber one-way valve provided with the anti-deformation supporting structure, according to the impact direction of the rubber blocking piece, the rubber blocking piece can drive the movable ring to move, the movable ring can compress or extend the corrugated pipe through the fixed rings on the two sides of the movable ring, and therefore the corrugated pipe deforms between the movable ring and the fixed rings; water flow impact borne by the rubber blocking piece is absorbed through deformation of the corrugated pipe, and the one-way valve is prevented from being damaged by the water hammer effect formed by water flow impact.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way valves, in particular to a rubber one-way valve provided with an anti-deformation support structure. Background Art

[0002] A rubber check valve is a device used to control the one-way flow of fluid. It is usually made of rubber material and allows the fluid to flow unimpeded in one direction, but blocks the flow in the opposite direction, thereby preventing backflow.

[0003] During the use of the existing rubber one-way valve, the deformation of the rubber itself during use will cause fatigue at the deformed part and lead to damage.

[0004] In order to overcome the above-mentioned defects, the Chinese patent of prior art 1 (application number: CN215410147U) discloses a one-way valve sealing rubber part, which uses a dense inner sleeve to install a first reinforcement rib and a second reinforcement rib respectively, and embeds nylon wire inside the first reinforcement rib and the second reinforcement rib to enhance its toughness, enhance the strength of the inner sleeve, make the pressure bearing capacity stronger, and extend the service life.

[0005] The existing technology increases the strength of the rubber one-way valve by adding supporting wires to the rubber structure inside the one-way valve. However, in actual use, the addition of supporting wires to the rubber structure will affect the elasticity of the rubber. Moreover, when the water flow is quickly stopped or changed in direction, an instantaneous pressure increase will occur in the pipeline, resulting in a water hammer effect. The water hammer effect can easily cause impact and damage to the sealing parts inside the one-way valve. Utility Model Content

[0006] The purpose of the present utility model is to provide a rubber one-way valve provided with an anti-deformation support structure to solve the problem in the above-mentioned background technology that when the water flow is quickly stopped or changed in direction, an instantaneous pressure increase will occur in the pipeline, resulting in a water hammer effect, and the water hammer effect can easily cause the sealing parts inside the one-way valve to be impacted and damaged.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a rubber one-way valve provided with an anti-deformation support structure, comprising a mounting tube, a water pipe and a mounting cavity, wherein the water pipe is connected to both sides of the mounting tube by snap-fitting, and the mounting cavity is provided in the middle of the mounting tube;

[0008] Both ends of the installation cavity are fixedly connected with fixed rings, and a positioning rod is fixedly connected between the two fixing rings. A sliding sleeve is slidably connected to the outside of the positioning rod, and a movable ring is fixedly connected to the outside of the middle of the sliding sleeve, and a bellows is fixedly connected between the two sides of the movable ring and the side where the two fixed rings are close to each other.

[0009] Preferably, the fixed ring and the movable ring are both configured as hollow structures, and the movable ring is slidably connected to the inside of the installation cavity. The bellows is configured as an elastic material, and the bellows and the movable ring are interconnected to form a sealing structure.

[0010] Preferably, the outer side of the positioning rod is provided with grooves distributed in an annular shape and at equal intervals, and both ends of the grooves extend to the inner side of the fixed ring. The inner side of the sliding sleeve is fixed with positioning strips distributed in an annular shape and at equal intervals, and the positioning strips are slidably connected to the inside of the grooves on the outer side of the positioning rod.

[0011] Preferably, one end of the sliding sleeve is fixedly connected to a sealing block, and six annularly distributed rubber baffles are fixedly connected to the side of the movable ring close to the sealing block, the end of the rubber baffle away from the movable ring is fitted with the side of the sealing block close to the movable ring, and the two sides of the six annularly distributed rubber baffles are fitted with each other to form a whole.

[0012] Preferably, the outer side of the mounting tube is fixedly connected with reinforcement strips distributed in an annular shape and at equal intervals, and the reinforcement strips are located outside the mounting cavity, and both ends of the reinforcement strips extend to the outside of both ends of the mounting cavity.

[0013] Preferably, both sides of the mounting pipe are fixedly connected with mounting flanges, and one end of the water pipe close to the reinforcement strip is fixedly connected with a connecting flange, and the mounting flange and the connecting flange are connected to each other by bolts equidistantly distributed in a ring shape.

[0014] Preferably, both ends of the installation pipe are fixedly connected with sealing rings, and one end of the water pipe close to the installation pipe is provided with a sealing groove corresponding to the sealing ring, and the sealing ring is snap-connected to the inside of the sealing groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This rubber one-way valve is provided with an anti-deformation support structure. According to the impact direction of the rubber baffle, the rubber baffle will drive the movable ring to move. The movable ring will compress or extend the bellows through the fixed rings on both sides of it, causing the bellows to deform between the movable ring and the fixed ring. The deformation of the bellows absorbs the impact of the water flow on the rubber baffle, preventing the water hammer effect caused by the water flow impact from causing damage to the one-way valve;

[0017] Furthermore, since a plurality of reinforcing strips are distributed in a circular shape on the outside of the mounting tube, and the length of the reinforcing strips is longer than the mounting cavity inside the mounting tube, the reinforcing strips reinforce the outside of the mounting tube while strengthening the weak points of the mounting cavity, thereby preventing the inside of the mounting tube from being deformed due to force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

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

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the installation pipe of the utility model;

[0021] Figure 4 This is a schematic diagram of the movable ring structure of the utility model;

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

[0023] Figure 6 This is a schematic diagram of the positioning rod structure of the utility model.

[0024] In the figure: 1. Mounting pipe; 2. Water pipe; 3. Mounting cavity; 4. Fixing ring; 5. Positioning rod; 6. Sliding sleeve; 7. Movable ring; 8. Bellows; 9. Rubber baffle; 10. Sealing block; 11. Reinforcement strip; 12. Mounting flange; 13. Connecting flange; 14. Bolt; 15. Sealing ring; 16. Sealing groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1:

[0027] See also Figure 1 - Figure 6 , the utility model provides the following technical solutions:

[0028] A rubber one-way valve with an anti-deformation support structure includes a mounting pipe 1, a water pipe 2, and a mounting cavity 3. The water pipe 2 is connected to both sides of the mounting pipe 1 by snapping, and the mounting cavity 3 is provided in the middle of the mounting pipe 1.

[0029] Fixed rings 4 are fixedly connected at both ends of the installation cavity 3, and a positioning rod 5 is fixedly connected between the two fixing rings 4. A sliding sleeve 6 is slidably connected to the outside of the positioning rod 5, and a movable ring 7 is fixedly connected to the outside of the middle of the sliding sleeve 6, and a bellows 8 is fixedly connected between the two sides of the movable ring 7 and the side where the two fixed rings 4 are close to each other.

[0030] The fixed ring 4 and the movable ring 7 are both hollow structures, and the movable ring 7 is slidably connected to the inside of the installation cavity 3. The bellows 8 is made of elastic material, and the bellows 8 and the movable ring 7 are connected to each other to form a sealing structure.

[0031] The outside of the positioning rod 5 is provided with annular grooves distributed evenly, and both ends of the grooves extend to the inside of the fixing ring 4. The inside of the sliding sleeve 6 is fixed with annular positioning strips distributed evenly, and the positioning strips are slidably connected to the inside of the grooves on the outside of the positioning rod 5.

[0032] One end of the sliding sleeve 6 is fixedly connected to a sealing block 10, and six annularly distributed rubber baffles 9 are fixedly connected to the side of the movable ring 7 close to the sealing block 10. The end of the rubber baffle 9 away from the movable ring 7 is fitted with the side of the sealing block 10 close to the movable ring 7, and the two sides of the six annularly distributed rubber baffles 9 are fitted with each other to form a whole.

[0033] An annular and equidistantly distributed reinforcement strips 11 are fixedly connected to the outside of the mounting tube 1 , and the reinforcement strips 11 are located outside the mounting cavity 3 , with both ends of the reinforcement strips 11 extending to the outside of both ends of the mounting cavity 3 .

[0034] Mounting flanges 12 are fixedly connected to both sides of the mounting pipe 1, and a connecting flange 13 is fixedly connected to one end of the water pipe 2 close to the reinforcement strip 11. The mounting flange 12 and the connecting flange 13 are connected to each other by bolts 14 equidistantly distributed in a ring shape.

[0035] Both ends of the installation pipe 1 are fixedly connected with sealing rings 15 , and one end of the water pipe 2 close to the installation pipe 1 is provided with a sealing groove 16 corresponding to the sealing ring 15 , and the sealing ring 15 is snap-connected inside the sealing groove 16 .

[0036] Example 2:

[0037] Based on the first embodiment, the specific working principle is as follows:

[0038] This rubber one-way valve is provided with an anti-deformation support structure. The device is installed in a water pipeline formed by a water pipe 2. At this time, the installation pipe 1 will be located at the connection between the two water pipes 2. When water flows inside the installation pipe 1, the water will flow from left to right inside the installation pipe 1. When the water flows inside the installation pipe 1, the water will flow in the sealing structure formed by the movable ring 7 and the bellows 8. At this time, the water will rush into the whole formed by the multiple rubber baffles 9, so that the two sides of the multiple rubber baffles 9 are separated from each other, thereby forming a passage state in the sealing structure formed by the movable ring 7 and the bellows 8, and the water can flow from the inside of the installation pipe 1;

[0039] When water flows from right to left inside the mounting tube 1, the water will come into contact with the rubber baffle 9. Since the rubber baffle 9 extends toward the right side of the movable ring 7 and the rubber baffle 9 and the movable ring 7 are distributed at an acute angle, when the water hits the right side of the rubber baffle 9, the water will drive the two sides of the rubber baffle 9 to come into contact with each other to form a whole, and the whole and the sealing block 10 form a sealing structure close to the side of the mounting tube 1, so that the movable ring 7, the rubber baffle 9 and the sealing block 10 separate the inside of the sealing structure formed by the movable ring 7 and the bellows 8, thereby forming a circuit-breaking state inside the mounting tube 1, preventing the water from flowing from right to left inside the mounting tube 1 and causing backflow;

[0040] When the water flows inside the sealing structure formed by the movable ring 7 and the bellows 8, the water simultaneously impacts both sides of the rubber baffle 9. When the rubber baffle 9 itself is impacted, according to the impact direction on the rubber baffle 9, the rubber baffle 9 will drive the movable ring 7 to move, and then drive the sliding sleeve 6 to slide on the outside of the positioning rod 5 through the movable ring 7. When the movable ring 7 is moving, the movable ring 7 will compress or extend the bellows 8 through the fixed rings 4 on both sides thereof, so that the bellows 8 is deformed between the movable ring 7 and the fixed ring 4. The water impact on the rubber baffle 9 is absorbed by the deformation of the bellows 8, thereby preventing the water hammer effect caused by the water impact from causing damage to the one-way valve;

[0041] Since the mounting cavity 3 is located inside the mounting tube 1, the outer side of the mounting tube 1 extends toward a side away from the center of the mounting tube 1, resulting in the overall structure of the mounting tube 1 failing to form a complete tubular structure, which in turn affects the strength of the mounting tube 1. Since a plurality of annular reinforcement strips 11 are distributed on the outer side of the mounting tube 1, and the length of the reinforcement strips 11 is longer than the mounting cavity 3 inside the mounting tube 1, the reinforcement strips 11 reinforce the outer side of the mounting tube 1 while strengthening the weak points of the mounting cavity 3, thereby preventing the interior of the mounting tube 1 from deforming due to force.

[0042] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0043] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can 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 should be included in the scope of protection of the present invention.

Claims

1. A rubber one-way valve provided with an anti-deformation support structure, comprising a mounting tube (1), a water tube (2) and a mounting cavity (3), wherein the water tube (2) is snap-connected to both sides of the mounting tube (1), and the mounting cavity (3) is provided in the middle of the mounting tube (1); Its characteristics are: Both ends of the interior of the installation cavity (3) are fixedly connected to fixed rings (4), and a positioning rod (5) is fixedly connected between the two fixing rings (4). A sliding sleeve (6) is slidably connected to the outside of the positioning rod (5), and a movable ring (7) is fixedly connected to the middle outside of the sliding sleeve (6), and a bellows (8) is fixedly connected between the two sides of the movable ring (7) and the side where the two fixing rings (4) are close to each other.

2. The rubber one-way valve with an anti-deformation support structure according to claim 1, characterized in that: The fixed ring (4) and the movable ring (7) are both hollow structures, and the movable ring (7) is slidably connected to the inside of the installation cavity (3). The bellows (8) is made of elastic material, and the bellows (8) and the movable ring (7) are connected to each other to form a sealing structure.

3. The rubber one-way valve with an anti-deformation support structure according to claim 1, characterized in that: The outer side of the positioning rod (5) is provided with annular equidistantly distributed slots, and both ends of the slots extend to the inner side of the fixing ring (4); the inner side of the sliding sleeve (6) is fixed with annular equidistantly distributed positioning strips, and the positioning strips are slidably connected to the inside of the slots on the outer side of the positioning rod (5).

4. The rubber one-way valve with an anti-deformation support structure according to claim 1, characterized in that: One end of the sliding sleeve (6) is fixedly connected to a sealing block (10), and a side of the movable ring (7) close to the sealing block (10) is fixedly connected to six annularly distributed rubber baffles (9), one end of the rubber baffle (9) away from the movable ring (7) and the side of the sealing block (10) close to the movable ring (7) are in contact with each other, and the two sides of the six annularly distributed rubber baffles (9) are in contact with each other to form a whole.

5. The rubber one-way valve with an anti-deformation support structure according to claim 1, characterized in that: The outside of the installation tube (1) is fixedly connected with reinforcement strips (11) distributed in an annular shape and at equal intervals, and the reinforcement strips (11) are located outside the installation cavity (3), and both ends of the reinforcement strips (11) extend to the outside of both ends of the installation cavity (3).

6. The rubber one-way valve with an anti-deformation support structure according to claim 5, characterized in that: Both sides of the installation pipe (1) are fixedly connected with installation flanges (12), and one end of the water pipe (2) close to the reinforcement strip (11) is fixedly connected with a connecting flange (13), and the installation flange (12) and the connecting flange (13) are connected to each other by bolts (14) distributed equidistantly in a ring shape.

7. The rubber one-way valve provided with an anti-deformation support structure according to claim 6, characterized in that: Both ends of the installation pipe (1) are fixedly connected with sealing rings (15), and one end of the water pipe (2) close to the installation pipe (1) is provided with a sealing groove (16) corresponding to the sealing ring (15), and the sealing ring (15) is snap-connected inside the sealing groove (16).

Images