Low-noise one-way valve

Abstract

The utility model discloses a low-noise one-way valve which comprises a main valve body, a cavity is formed in the main valve body, a limiting block is fixedly arranged at the position, close to the middle, of the main valve body, a sealing ball valve is arranged on one side of the limiting block, a main pipe is communicated with the other side of the limiting block, a cavity is formed in the main pipe, and the sealing ball valve is arranged in the cavity. A spoiler is fixedly arranged in the main pipe, four grooves are formed in the outer surface in the main pipe in a surrounding mode, and sound absorption cotton is fixedly arranged in the grooves. According to the low-noise one-way valve, by arranging the spoiler, the sound-absorbing cotton, the porous rod and the energy-absorbing silica gel pad, when the low-noise one-way valve is used, noise generated when water flows can be absorbed and reduced, so that the low-noise one-way valve is in a low-noise state and can be used by a user in some environments needing low noise, and the practicability of the low-noise one-way valve is improved. Convenience is brought to a user, the practicability of the device is improved, and the use requirement of the user is met.

Description

Technical Field

[0001] The utility model relates to the technical field of check valves, in particular to a low-noise check valve. Background Technique

[0002] Check valves are widely used in hydraulic oil circuits or engine oil circuits to separate oil passages and enable oil to pass through unidirectionally. The check valves in the prior art are usually formed into an integral valve body by stamping. A valve cavity is formed inside the valve body, and an inlet and an outlet communicating with the valve cavity are respectively formed at opposite ends of the valve body. Corresponding valve cores, springs and other structures are installed in the valve cavity of the valve body. Under normal conditions, the valve core blocks the sealing port in the valve cavity, so that the oil flowing into the valve cavity from the inlet cannot enter the oil circuit downstream of the check valve through the sealing port. When the valve core is subjected to a sufficient large pressure, the valve core overcomes the acting force of the spring and disengages from the sealing port, so that the oil flowing into the valve cavity from the inlet can enter the oil circuit downstream of the check valve.

[0003] In the comparative document "A Low-Noise Check Valve" with the patent number (CN221003942U), a compression spring and a damper are provided to support the valve core. When the liquid flows forward, the valve core is pushed out of the diversion port. When the liquid flows backward, the valve core and the compression spring are not subjected to thrust. The valve core is inserted into the diversion port under the thrust of the compression spring and the liquid to seal and prevent the liquid from flowing backward. The damper can slow down the impact force of the compression spring, thereby avoiding excessive impact of the valve core and the diversion port to generate noise. After long-term use, the user first opens the cover plate, and then can take out the two round plates from the shell to check and replace the compression spring and the damper, so as to ensure the normal use of the compression spring and the damper.

[0004] However, check valves often generate relatively large noise during use, which causes inconvenience to users during use and can no longer meet the usage requirements of users. Content of the Utility Model

[0005] The purpose of the utility model is to provide a low-noise check valve to solve the problem that check valves often generate relatively large noise during use, which causes inconvenience to users during use and can no longer meet the usage requirements of users as put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A low-noise check valve includes a main valve body. A cavity is opened inside the main valve body. A limiting block is fixedly arranged at a position close to the middle of the main valve body. A sealing ball valve is arranged on one side of the limiting block. A main pipe is communicated with the other side of the limiting block. A cavity is opened inside the main pipe. A flow-blocking plate is fixedly arranged inside the main pipe. Four grooves are circumferentially opened on the outer surface inside the main pipe. Sound-absorbing cotton is fixedly arranged inside the grooves. A porous rod is fixedly arranged inside the sound-absorbing cotton. An energy-absorbing silica gel pad is circumferentially inlaid on one side of the flow-blocking plate.

[0007] Further, external conduits are connected to both sides of the main valve body.

[0008] Further, the outer surface of the sealing ball valve contacts the inner wall of the main valve body, and one side of the sealing ball valve contacts the limit block and is sealingly connected to the limit block.

[0009] Further, a support spring is fixedly arranged on one side of the sealing ball valve, and one end of the support spring is fixedly connected to the main valve body.

[0010] Further, a plurality of flow blocking plates are provided, and the distance between every two flow blocking plates is designed to be equal. A drainage groove is formed in the middle position of the flow blocking plate.

[0011] Further, the groove and the main pipe are integrally designed.

[0012] Further, a plurality of energy-absorbing silica gel pads are provided, and the distance between every two energy-absorbing silica gel pads is designed to be equal.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] For this low-noise one-way valve, by providing flow blocking plates, sound-absorbing cotton, porous rods and energy-absorbing silica gel pads, when the device is in use, the noise generated by the flowing water can be absorbed and reduced, so that the device is in a low-noise state, which can meet the use of users in some environments requiring low noise, bringing convenience to users, improving the practicability of the device, and meeting the use requirements of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a cross-sectional view of the structure of the present utility model;

[0017] Figure 3 is a side view of the flow blocking plate of the present utility model;

[0018] Figure 4 is Figure 2 a partially enlarged schematic view of A in

[0019] In the figure: 1, main valve body; 2, limit block; 3, sealing ball valve; 4, main pipe; 5, flow blocking plate; 6, groove; 7, sound-absorbing cotton; 8, porous rod; 9, energy-absorbing silica gel pad; 10, support spring; 11, external conduit. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further details the utility model in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive and do not limit the protection scope of the present utility model.

[0021] Please refer to Figures 1-4 , the present utility model provides a technical solution: a low-noise check valve, including a main valve body 1, the main valve body 1 plays a role in medium circulation. A cavity is provided inside the main valve body 1. A limiting block 2 is fixedly arranged at a position near the middle of the main valve body 1, and the limiting block 2 plays a limiting role. A sealing ball valve 3 is arranged on one side of the limiting block 2, and the sealing ball valve 3 plays a sealing role. A main pipe 4 is communicated with the other side of the limiting block 2, and the main pipe 4 is used to arrange corresponding components. A cavity is provided inside the main pipe 4. A flow-blocking plate 5 is fixedly arranged inside the main pipe 4, and the flow-blocking plate 5 plays a flow-blocking role. Four grooves 6 are circumferentially formed on the outer surface inside the main pipe 4, and the grooves 6 are used to arrange corresponding components. Sound-absorbing cotton 7 is fixedly arranged inside the grooves 6, and the sound-absorbing cotton 7 plays a sound-absorbing role. A porous rod 8 is fixedly arranged inside the sound-absorbing cotton 7, and the porous rod 8 plays a role in reducing noise to achieve noise reduction. An energy-absorbing silica gel pad 9 is circumferentially inlaid on one side of the flow-blocking plate 5, and the energy-absorbing silica gel pad 9 plays an energy-absorbing role.

[0022] Furthermore, external connecting pipes 11 are communicated with both sides of the main valve body 1. Among them, the external connecting pipes 11 are used to communicate with external pipelines.

[0023] Furthermore, the outer surface of the sealing ball valve 3 contacts the inner wall of the main valve body 1. One side of the sealing ball valve 3 contacts the limiting block 2 and is hermetically connected to the limiting block 2. Among them, the sealing ball valve 3 and the limiting block 2 cooperate with each other to play a role in intercepting the flow.

[0024] Furthermore, a support spring 10 is fixedly arranged on one side of the sealing ball valve 3, and one end of the support spring 10 is fixedly connected to the main valve body 1. Among them, the support spring 10 can support the sealing ball valve 3.

[0025] Furthermore, the number of the flow-blocking plates 5 is several, and the distance between every two flow-blocking plates 5 is designed to be equal. A drainage groove is provided at a position near the middle inside the flow-blocking plate 5. Among them, the drainage groove plays a role in draining the flow.

[0026] Furthermore, the grooves 6 and the main pipe 4 are integrally designed. Among them, the grooves 6 are used to arrange corresponding components.

[0027] Furthermore, the number of the energy-absorbing silica gel pads 9 is several, and the distance between every two energy-absorbing silica gel pads 9 is designed to be equal. Among them, the energy-absorbing silica gel pads 9 play an energy-absorbing role.

[0028] Working principle: When using this device, through the setting of the baffle plate 5, the flow rate of water can be blocked, and an energy-absorbing silica gel pad 9 is also arranged on the baffle plate 5, which can absorb the impact force received, thereby reducing the impact force of the water flow. In this way, the source of noise will be reduced. Through the mutual cooperation of the sound-absorbing cotton 7 and the porous rod 8, the noise transmitted to this place can be absorbed and reduced, and the noise is processed again, so that this device achieves the effect of low noise.

[0029] It can be known from the above working process that:

[0030] For this low-noise one-way valve, by setting the baffle plate 5, the sound-absorbing cotton 7, the porous rod 8 and the energy-absorbing silica gel pad 9, when this device is in use, the noise generated during the water flow can be absorbed and reduced, so that this device is in a low-noise state, which can meet the needs of users in some environments that require low noise, bring convenience to users, improve the practicability of this device, and meet the usage requirements of users.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-noise one-way valve, comprising a main valve body (1), characterized in that: The main valve body (1) has a cavity formed inside, a limit block (2) is fixedly provided at a middle position of the main valve body (1), a sealing ball valve (3) is provided on one side of the limit block (2), the other side of the limit block (2) is connected to a main pipe (4), the main pipe (4) has a cavity formed inside, a baffle (5) is fixedly provided inside the main pipe (4), four grooves (6) are formed around the outer surface of the main pipe (4), sound-absorbing cotton (7) is fixedly provided inside the grooves (6), a porous rod (8) is fixedly provided inside the sound-absorbing cotton (7), and an energy-absorbing silicone pad (9) is inlaid around one side of the baffle (5).

2. A low noise one-way valve according to claim 1, characterized in that: Both sides of the main valve body (1) are connected to external conduits (11).

3. A low noise one-way valve according to claim 1, characterized in that: The outer surface of the sealing ball valve (3) contacts the inner wall of the main valve body (1), and one side of the sealing ball valve (3) contacts the limit block (2) and is sealedly connected to the limit block (2).

4. A low noise one-way valve according to claim 1, characterized in that: A support spring (10) is fixedly arranged on one side of the sealing ball valve (3), and one end of the support spring (10) is fixedly connected to the main valve body (1).

5. A low noise one-way valve according to claim 1, characterized in that: The spoiler plates (5) are provided in a plurality, and each two spoiler plates (5) are designed to be equidistant from each other. A drainage groove is provided in the middle of the spoiler plates (5).

6. A low noise one-way valve according to claim 1, characterized in that: The groove (6) and the main pipe (4) are of an integrated design.

7. A low noise one-way valve according to claim 1, characterized in that: The energy absorbing silica gel pads (9) are provided in a plurality, and every two energy absorbing silica gel pads (9) are designed to be equidistant from each other.

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