Structure for preventing one-way valve of air conditioner from rotating

Abstract

The utility model relates to the technical field of air conditioner one-way valves, in particular to a structure for preventing an air conditioner one-way valve from rotating, which comprises a pipe body mounted on an air conditioner pipeline, a valve seat is arranged in the pipe body, the outer wall of the valve seat is fixedly and hermetically arranged along the inner wall of the pipe body, and a horn mouth shape is arranged in the inlet direction of the valve seat. A sliding valve element is arranged at one end of an outlet of the valve seat, the end face of an inlet of the valve element is arranged to be in a circular truncated cone shape, a replaceable arc-shaped protrusion is arranged on the inner side of the outlet of the valve seat and abuts against the valve element, and a limiting device for limiting the moving distance of the valve element is arranged at the tail of the valve element. Therefore, shaking and vibration of the valve element under the impact of high-speed fluid are effectively restrained, and noise and abrasion are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way valves for air conditioners, in particular to a structure for preventing a one-way valve for air conditioners from rotating. Background Art

[0002] A one-way valve is a valve that controls the flow of fluid by changing the throttling section or throttling length. The throttling structure in the air-conditioning system generally uses a throttling block as the valve core structure, and the fluid is guided by the limit of the internal valve core. Since the fluid flow rate inside the one-way valve is relatively fast, the valve core will shake and vibrate internally during actual use, which will generate loud noise when used for a long time. The valve core will rotate, tilt or even get stuck inside. The valve core and valve seat are prone to wear due to long-term collision, which will increase the leakage, thereby shortening the service life of the one-way valve and increasing the difficulty of maintenance. Utility Model Content

[0003] The purpose of the utility model is to overcome the defect in the prior art that a one-way valve generates noise when rotating in use, and to provide a structure for preventing the one-way valve from rotating.

[0004] In order to achieve the above-mentioned purpose, the embodiment of the present utility model specifically adopts the following technical solutions: a structure for preventing the rotation of an air-conditioning one-way valve, comprising a tube body installed on the air-conditioning pipeline, a valve seat provided inside the tube body, the outer wall of the valve seat fixedly sealed along the inner wall of the tube body, a bell-mouth shape provided in the inlet direction of the valve seat, a sliding valve core provided at one end of the outlet of the valve seat, the inlet end face of the valve core provided with a frustum shape, an arc-shaped protrusion for replacement provided on the inner side of the outlet of the valve seat abutting against the valve core, and a limit device provided at the tail of the valve core for limiting the moving distance of the valve core.

[0005] Furthermore, the tube body is cylindrical, the cross section of the valve seat is annular, and a clamping groove is provided on the outer wall of the valve seat, and the clamping groove is clamped with a convex ridge provided on the inner wall of the tube body.

[0006] Furthermore, the limiting device includes a limiting groove arranged at the tail of the valve core, two limiting grooves are arranged opposite to each other, and a limiting column is provided on the inner wall of the tube body to be clamped with the limiting groove.

[0007] Furthermore, two limiting posts are relatively provided, the top of each limiting post is provided with an arc surface that fits the inner wall of the tube body, and the tail of each limiting post is provided with a stopper for preventing the valve core from moving.

[0008] Furthermore, a clamping ring is provided on the inner wall of the tube body, and the side of the clamping ring abuts against the bottom of the limiting column.

[0009] Furthermore, a cavity is provided in the middle position of the tail of the valve core, and the cavity is truncated cone-shaped.

[0010] The beneficial effects of the embodiments of the present utility model are as follows: The cooperation between the front end face of the valve core and the arc-shaped protrusion of the valve seat increases the contact area, preventing fluid backflow. The inlet of the valve seat is set in a flared shape, reducing the impact on the fluid velocity. The limiting effect of the limiting post and the limiting groove effectively suppresses the jitter and vibration of the valve core under the impact of high-speed fluid, reduces noise and wear, extends the service life of the throttle valve, improves the stability and durability of the throttle valve, and reduces the maintenance difficulty and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0012] Figure 2 It is a schematic sectional structure diagram of the present utility model;

[0013] Figure 3 It is a schematic diagram of the overall structure of the valve core and the limiting post of the present utility model;

[0014] In the figure: 1, pipe body; 2, valve seat; 201, arc-shaped protrusion; 3, valve core; 301, limiting groove; 302, cavity; 4, limiting post; 401, stop block; 5, clamping ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0016] See Figures 1 to 3 , the embodiments of the present utility model disclose a structure for preventing the rotation of an air-conditioning check valve, which mainly includes four main parts: a pipe body 1, a valve seat 2, a valve core 3, and a limiting device. The pipe body 1 is designed as a cylinder, and its internal space is used to install and accommodate other components, facilitating connection to the air-conditioning pipeline. The valve seat 2 serves as the control basis for fluid flow and is fixedly arranged along the inner wall of the pipe body 1 to ensure precise control of the fluid when passing through. The valve seat 2 is designed as an annular seat, and a clamping groove is processed on its outer wall. The clamping groove is used to be clamped with the convex rib on the outer wall of the pipe body 1, thereby realizing the stable installation of the valve seat 2 in the pipe body 1. This not only simplifies the installation process, ensures the stability of the valve seat 2 under the impact of high-speed fluid, and avoids noise and leakage problems caused by loosening. The inlet direction of the valve seat 2 is provided with a flared shape, reducing the impact on the fluid flow velocity inside the pipe body 1 and improving the use effect. An arc-shaped protrusion 201 for replacement is arranged on the inner side of the outlet of the valve seat 2 and abuts against the valve core 3. When the arc-shaped protrusion 201 abuts against the valve core 3, it has a sealing effect, preventing fluid backflow. The arc-shaped protrusion 201 increases the contact area with the valve core 3, ensuring sealing and improving the use effect.

[0017] The outer diameter of the valve core 3 is smaller than the inner diameter of the pipe body 1 to ensure that excessive friction does not occur between the valve core 3 and the inner wall of the pipe body 1 during the movement of the valve core 3. One end of the valve core 3 is designed as a frustum-shaped inclined plane that fits the arc-shaped protrusion 201 on the outlet of the valve seat 2, which helps the fluid to pass smoothly through the valve core 3, reducing the generation of eddy currents and noise. And during use, the fluid flows from one end of the inclined plane of the valve core 3 to the other end. When flowing through, the valve core 3 will be pushed to the right, separating the valve seat 2 from the valve core 3, enabling the fluid to smoothly push open the valve core 3 and flow. Since the other end of the valve core 3 is a plane, when the internal fluid flows in the reverse direction, it acts on the plane, causing the valve core 3 to block the valve seat 2, forming a one-way control effect. And a frustum-shaped cavity 302 is also provided at the middle position of the bottom of the valve core 3. The cavity 302 gathers the fluid, generating a guiding effect to ensure the one-way flow guiding effect of the valve seat 2 and the valve core 3.

[0018] The bottom of the valve core 3 is cylindrical. A limit groove 301 for engaging with the limit device is provided on the side of the valve core 3. At least two limit grooves 301 are provided to improve the stability of the valve core 3. The limit device includes limit posts 4 provided on the inner wall of the pipe body 1. There are two relatively arranged limit posts 4. The top of the limit post 4 is set as an arc-shaped surface that fits the inner wall of the pipe body 1 to ensure the fitting effect of the limit post 4 and increase the fixing area. A stop block 401 for blocking the movement of the valve core 3 is provided at the tail of the limit post 4. Two limit grooves 301 are provided at the tail of the valve core 3 in cooperation with the two limit posts 4. The valve core 3 is restricted by the limit grooves 301 and the limit posts 4 to prevent the valve core 3 from rotating inside the pipe body 1.

[0019] To prevent the valve core 3 and the limit posts 4 from deviating from the preset trajectory during use, to better restrict the movement of the valve core 3. A stop block 401 for blocking the movement of the valve core 3 is provided at the tail of the limit post 4. The stop block 401 limits the distance that the valve core 3 moves to the right. The side of the valve core 3 is engaged by the limit post 4 to control the vibration and rotation of the valve core 3 when the fluid passes through, greatly reducing the collision and friction of the valve core 3, reducing noise. At the same time, due to the setting of the limit post 4, the fluid can flow through the side of the valve core 3 to ensure the use effect. A clamping ring 5 is provided on the inner wall of the pipe body 1. The side of the clamping ring 5 abuts against the bottom of the limit post 4 to improve the anti-impact effect of the limit post 4 and improve the stability.

[0020] During use, the front end face of the valve core 3 cooperates with the arc-shaped protrusion 201 of the valve seat 2 to prevent the fluid from flowing back. The limiting effect of the limiting device on the valve core 3 together ensures that the fluid can be accurately controlled when passing through the throttling area. Due to the existence of the limiting device, the jitter and vibration of the valve core 3 under the impact of high-speed fluid are effectively suppressed, reducing noise and wear, extending the service life of the throttle valve, improving the stability and durability of the throttle valve, and reducing the maintenance difficulty and cost.

[0021] It should be noted that in the description of the present utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article or device / equipment comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes the elements inherent in these processes, articles or devices / equipment.

[0024] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A structure for preventing the rotation of a one-way valve of an air conditioner, including a pipe body (1) installed on an air conditioner pipeline, characterized in that: Inside the pipe body (1), a valve seat (2) is provided. The outer wall of the valve seat (2) is fixedly and sealingly arranged along the inner wall of the pipe body (1). The inlet direction of the valve seat (2) is in the shape of a flared opening. At the outlet end of the valve seat (2), a sliding valve core (3) is provided. The inlet end face of the valve core (3) is frustum-shaped. Inside the outlet of the valve seat (2), a replaced arc-shaped protrusion (201) is provided to abut against the valve core (3). At the tail of the valve core (3), a limiting device for restricting the moving distance of the valve core (3) is provided.

2. The structure for preventing the rotation of the one-way valve of the air conditioner according to claim 1, wherein: The pipe body (1) is cylindrical. The cross-section of the valve seat (2) is annular. A clamping groove is provided on the outer wall of the valve seat (2), and the clamping groove is clamped with a rib provided on the inner wall of the pipe body (1).

3. The structure for preventing the rotation of the one-way valve of the air conditioner according to claim 1, wherein: The limiting device includes limiting grooves (301) provided at the tail of the valve core (3). There are two limiting grooves (301) arranged oppositely. Limiting posts (4) are provided on the inner wall of the pipe body (1) and are clamped with the limiting grooves (301).

4. The structure for preventing the rotation of the one-way valve of the air conditioner according to claim 3, wherein: There are two limiting posts (4) arranged oppositely. The top of the limiting post (4) is an arc-shaped surface that fits the inner wall of the pipe body (1). A stop block (401) for blocking the movement of the valve core (3) is provided at the tail of the limiting post (4).

5. The structure for preventing the rotation of the one-way valve of the air conditioner according to claim 4, wherein: A clamping ring (5) is provided on the inner wall of the pipe body (1), and the side of the clamping ring (5) abuts against the bottom of the limiting post (4).

6. The structure for preventing the rotation of the one-way valve of the air conditioner according to claim 1, characterized in that: A cavity (302) is provided at the middle position of the tail of the valve core (3), and the cavity (302) is frustum-shaped.

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