Novel one-way valve with clamping noise reduction function

Abstract

The utility model relates to a novel one-way valve with a clamping noise reduction function, which comprises a valve sleeve with a hollow structure inside; the valve element is mounted in the center of the valve sleeve in an axial moving manner; the buffering piece is of a sheet-shaped structure and is provided with a clamping groove part connected with the valve sleeve in a clamped mode and a contact end which is far away from one end of the clamping groove part and makes contact with the valve element when the valve element moves, and a bending part which is deformed after the buffering piece is stressed is arranged between the clamping groove part and the contact end; the one-way valve is reasonable in design structure, the buffering piece which can deform after being stressed is arranged in the valve sleeve and makes contact with the valve element, on one hand, noise generated in the valve opening process can be reduced, on the other hand, damage to parts in the one-way valve can be avoided, and the service life of the one-way valve can be prolonged; in addition, due to the arrangement of the buffer piece, the problem that abnormal sound is generated due to movement of the valve element when the one-way valve is in the open state and the internal fluid pressure is unstable can also be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of one-way valve structure design, and in particular to a novel one-way valve with a snap-in noise reduction function. Background Art

[0002] A one-way valve is a control valve that allows the medium to flow in one direction and prevents the flow in the opposite direction. The medium can be gas or liquid. In the air conditioning system, the one-way valve structure used is as follows Figure 14 As shown, there is a valve core that can move axially inside. When the valve core contacts the valve port, the one-way valve is in a closed state. When the valve core is separated from the valve port, the one-way valve is in an open state. The state shown in the figure is the open state.

[0003] However, this type of one-way valve also has certain defects in actual use. When the one-way valve is in the process of switching from closed to open, the valve core will move rapidly to the right under the action of the fluid, causing the end of the valve core to violently collide with the inner wall end of the valve sleeve. On the one hand, this will cause noise problems during use. On the other hand, after long-term use, it will also cause accelerated damage to the valve core or valve sleeve, affecting the service life of the one-way valve. In addition, when the internal system pressure of the air conditioner is unstable, the valve core will also move inside the one-way valve in the open valve state, which will also generate noise and bring a bad user experience. The existing technology also uses some buffer noise reduction parts that are welded or riveted to the end of the valve sleeve to reduce the noise problem. However, if the buffer noise reduction parts are directly welded or riveted to the valve sleeve, the installation and fixing process will be inconvenient and difficult to operate. Utility Model Content

[0004] In order to solve the problems of the existing one-way valves easily generating noise and easily causing damage to the one-way valves and the difficulty in installing buffer noise reduction parts raised in the above background technology, the present application provides a new one-way valve with a snap-on noise reduction function.

[0005] The present application provides a novel one-way valve with a snap-in noise reduction function, which adopts the following technical solution:

[0006] A new one-way valve with a snap-on noise reduction function, comprising:

[0007] The valve sleeve has a hollow structure inside;

[0008] The valve core is axially movably mounted at the center of the valve sleeve;

[0009] The buffer is a sheet-like structure having a slot portion that is engaged with the valve sleeve and a contact end that is away from the slot portion and contacts the valve core when the valve core moves. A bending portion is provided between the slot portion and the contact end that deforms when the buffer is subjected to force.

[0010] By adopting the above technical solution, on the one hand, during the valve opening process, the valve core and the buffer can be in contact, thereby avoiding the problem of direct collision between the valve core and the valve sleeve, and avoiding excessive noise; on the other hand, the buffer can be deformed after being subjected to force, thereby avoiding the problem of damage to the valve core and the valve sleeve due to severe impact; on the other hand, since the end of the buffer has a snap-fit ​​portion connected to the valve sleeve, the buffer and the valve sleeve can be quickly assembled, thereby improving assembly efficiency.

[0011] Optionally, an end through hole is formed at one end of the valve sleeve away from the valve core, and the buffer component is clamped at an edge of the end through hole through a clamping groove.

[0012] By adopting the above technical solution, the buffer component is directly clamped and connected to the end through hole of the valve sleeve. On the one hand, it has the characteristics of simple assembly structure and steps, which is conducive to improving installation efficiency; on the other hand, it can transmit the force received by the buffer component during operation to the valve sleeve, and has the characteristics of structural stability.

[0013] Optionally, the inner wall of the end through hole of the valve sleeve has a mounting portion extending toward the center of the end through hole.

[0014] By adopting the above technical solution, on the one hand, it is used to increase the structural strength of the through hole position at the end of the valve sleeve and reduce the probability of damage to the valve sleeve at the through hole position at the end; on the other hand, it is used to increase the contact area of ​​the slot during installation, and it is also beneficial to improve the stability of the installation structure of the buffer.

[0015] Optionally, after the buffer is clamped at the edge of the end through-hole through the clamping groove portion, one end of the buffer close to the clamping groove portion is welded or riveted to the valve sleeve.

[0016] By adopting the above technical solution, the buffer component is further fixedly connected to the valve sleeve in the engaged state. On the one hand, since the buffer component is first engaged on the valve sleeve, relative displacement between the buffer component and the valve sleeve can be avoided during welding, and the welding process is more convenient. On the other hand, welding or riveting is performed on the engaged contact, which further improves the connection tightness between the buffer component and the valve sleeve.

[0017] Optionally, the contact end of the buffer member extends toward the center of the valve sleeve and close to the valve core.

[0018] By adopting the above technical solution, when the valve core moves, the buffer member can contact the center position of the valve core, so that the valve core is evenly stressed, avoiding problems such as tilting and sticking inside the valve sleeve due to uneven stress.

[0019] Optionally, the buffer component further has an outwardly extending extension portion at one end close to the slot portion, the shape of the extension portion matches the shape of the valve sleeve end portion, and the inner wall of the extension portion fits the outer wall of the valve sleeve end.

[0020] By adopting the above technical solution, the contact area between the buffer component and the valve sleeve is increased, and the close fit between the two can improve the installation firmness of the buffer component on the valve sleeve.

[0021] Optionally, the buffer is a symmetrical spring structure with two slots.

[0022] By adopting the above technical solution, the buffer component can be connected to the valve sleeve only by means of a snap-fit ​​method, which can have a high connection structure stability and make the buffer component easy to replace. In addition, there are two snap-fitting grooves and they are symmetrical to each other, which can also ensure that it will not fall off from the end through hole of the valve sleeve after being subjected to force, and has the advantage of stable installation.

[0023] Optionally, one end of the buffer is a fixed disk with an opening, the inner wall of the fixed disk has two frills folded outward, and the slot is formed in the space between the frill and the fixed disk.

[0024] By adopting the above technical solution, the fixed disk is a disk-shaped structure with a through hole, which can increase the contact area with the end of the valve sleeve, and is connected to the end of the valve sleeve by the groove portion, so its structural strength is stronger.

[0025] Optionally, the one-way valve further includes:

[0026] The valve seat is coaxial with and fixedly connected to the valve sleeve, has a through-type structure inside and has a valve port at one end close to the valve sleeve;

[0027] The valve body is coaxially fixedly connected to the outside of the valve seat, and the valve seat, valve sleeve and valve core are all located inside the valve body;

[0028] Among them, the valve core is a cup-shaped structure, the cup bottom is close to the valve port, and the outer wall of the valve core close to the cup bottom is a conical structure. The contact end of the buffer can abut against the cup bottom position of the valve core cup structure during operation.

[0029] By adopting the above technical solution, the valve sleeve, valve core, valve seat and valve body are in a coaxial state, and the valve core can move along the center line of the valve port during movement, thereby achieving better working effect.

[0030] Optionally, radial through holes are evenly distributed on the outer wall of the valve sleeve.

[0031] By adopting the above technical solution, the rapid flow effect of the fluid is achieved mainly by cooperating with the end through hole of the valve sleeve.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. The design structure of the utility model is reasonable. A buffer member that can be deformed when subjected to force is arranged inside the valve sleeve to contact the valve core. On the one hand, it can reduce the problem of noise generated during the valve opening process. On the other hand, it can avoid damage to the internal components of the one-way valve, which is beneficial to extending the service life of the one-way valve. In addition, due to the arrangement of the buffer member, the problem of abnormal noise caused by the movement of the valve core can also be avoided when the one-way valve is in the open state and the internal fluid pressure is unstable.

[0034] 2. The utility model provides a slot portion connected to the valve sleeve at one end of the buffer, which can facilitate the rapid positioning of the buffer to the end of the valve sleeve, and can concentrate the force point at the position of the slot portion during operation, which has the advantages of simple and rapid positioning and firm installation of the buffer. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a structural diagram of a one-way valve in an open state according to a first embodiment of the present invention;

[0036] Figure 2 This is a structural diagram of a one-way valve in a closed state according to an embodiment of the present invention;

[0037] Figure 3 This is a connection diagram of the valve sleeve and the buffer member in the first embodiment of the present utility model;

[0038] Figure 4 This is a three-dimensional diagram of a buffer member according to a first embodiment of the present invention;

[0039] Figure 5 This is a structural diagram of the one-way valve in the open state of the second embodiment of the present utility model;

[0040] Figure 6 This is a structural diagram of the one-way valve in the closed state of the second embodiment of the present utility model;

[0041] Figure 7 This is a structural diagram of the connection between the valve sleeve and the buffer member in the second embodiment of the present utility model;

[0042] Figure 8 This is a three-dimensional diagram of the connection between the valve sleeve and the buffer member in the second embodiment of the present invention;

[0043] Figure 9 This is a structural diagram of the connection between the valve sleeve and the buffer member in the third embodiment of the present invention;

[0044] Figure 10 This is a three-dimensional diagram of a buffer member according to a third embodiment of the present invention;

[0045] Figure 11 This is a structural diagram of the connection between the valve sleeve and the buffer member in the fourth embodiment of the present utility model;

[0046] Figure 12This is a three-dimensional diagram of the connection between the valve sleeve and the buffer member in the fourth embodiment of the present utility model;

[0047] Figure 13 This is a three-dimensional diagram of a buffer member according to a fourth embodiment of the present utility model;

[0048] Figure 14 It is a structural diagram of a one-way valve in the prior art.

[0049] Explanation of the accompanying drawings: 1. Valve sleeve; 101. End through hole; 102. Radial through hole; 103. Mounting portion; 2. Valve core; 3. Buffer member; 301. Contact end; 302. Bending portion; 303. Slot portion; 304. Extension portion; 305. Fixed disk; 306. Frill; 4. Valve seat; 401. Valve port; 5. Valve body. DETAILED DESCRIPTION

[0050] The present application is further described in detail below with reference to the accompanying drawings. Example

[0051] like Figure 1-4 As shown, the embodiment of the present application discloses a new one-way valve with a snap-in noise reduction function, comprising:

[0052] The valve sleeve 1 has a hollow interior. Radial through holes 102 are evenly formed on the outer wall of the valve sleeve 1. An end through hole 101 is formed on the end of the valve sleeve 1 away from the valve core 2. The buffer member 3 is clamped at the edge of the end through hole 101 through a clamping groove 303.

[0053] The valve core 2 is axially movably mounted at the center of the valve sleeve 1;

[0054] The buffer member 3 has a sheet-like structure and comprises a slot portion 303 engaged with the valve sleeve 1 and a contact end 301 which is away from the slot portion 303 and contacts the valve core 2 when the valve core 2 moves. A bent portion 302 is provided between the slot portion 303 and the contact end 301, which deforms when the buffer member 3 is subjected to force. The end of the buffer member 3 close to the slot portion 303 is a fixed end for connection to the valve sleeve 1, and the other end is a contact end 301 for contacting the valve core 2 during operation. Due to its sheet-like structure, more specifically, the V-shaped bent portion 302 in the middle enables the buffer member 3 to deform when subjected to external force, and utilizes its deformation to buffer and reduce the speed of the valve core 2, thereby avoiding noise and damage caused by the collision between the valve core 2 and the valve sleeve 1.

[0055] The valve seat 4 is coaxial with and fixedly connected to the valve sleeve 1, has a through-type structure inside and has a valve port 401 at one end close to the valve sleeve 1;

[0056] The valve body 5 is coaxially fixedly connected to the outside of the valve seat 4, and the valve seat 4, the valve sleeve 1 and the valve core 2 are all located inside the valve body 5;

[0057] Among them, the valve core 2 is a cup-shaped structure, the cup bottom of which is close to the valve port 401, and the outer wall of the valve core 2 close to the cup bottom is a conical structure. The contact end 301 of the buffer member 3 can abut against the cup bottom position of the cup structure of the valve core 2 during operation.

[0058] Specifically, in this embodiment, after the buffer member 3 is clamped at the edge of the end through hole 101 through its clamping groove portion 303, the end of the buffer member 3 close to the clamping groove portion 303 is welded and fixed to the valve sleeve 1. The purpose of clamping the clamping groove portion 303 on the valve sleeve 1 is to achieve a preliminary positioning effect of the buffer member 3, thereby avoiding the problem of displacement during subsequent welding, and has the advantage of improving welding quality and efficiency.

[0059] The contact end 301 of the buffer member 3 extends toward the center of the valve sleeve 1 and close to the valve core 2 .

[0060] Specifically, in this embodiment, the buffer member 3 has an outwardly extending extension portion 304 at one end close to the slot portion 303. The shape of the extension portion 304 matches the shape of the end portion of the valve sleeve 1, and the inner wall of the extension portion 304 fits the outer wall of the end of the valve sleeve 1. This arrangement can increase the contact area with the valve sleeve 1, improve the stability of the connection and positioning between the two, and improve the firmness of the two after welding.

[0061] When this new one-way valve with a snap-on noise reduction function is in use, during the valve opening process, the valve core 2 moves in the direction away from the valve port 401, and when it moves to the specified position, it can contact the buffer member 3. At this time, the buffer member 3 deforms itself after being subjected to force to avoid the problem of the valve core 2 hitting the valve sleeve 1 and generating noise, thereby achieving the purpose of reducing noise and preventing damage to the valve core 2 and the valve sleeve 1.

[0062] During the process of connecting and fixing the buffer component 3 to the valve sleeve 1, the slot portion 303 of the buffer component 3 is first engaged with the edge of the end through hole 101 of the valve sleeve 1, so that the buffer component 3 can first achieve a positioning effect, and then the end of the buffer component 3 close to the slot portion 303 can be welded to the valve sleeve 1 by welding, thereby simplifying the welding process. Example

[0063] like Figure 5-8As shown, the difference between this embodiment and the above-mentioned embodiment 1 is only that: the inner wall position of the end through hole 101 of the valve sleeve 1 has a mounting portion 103 extending toward the center direction of the end through hole 101, and the end of the buffer 3 close to the groove portion 303 does not have an extension portion 304. In this structure, the provided mounting portion 103 can facilitate the groove portion 303 of the buffer 3 to be clamped therein, thereby achieving a positioning effect and facilitating the subsequent welding and fixation between the buffer 3 and the valve sleeve 1. Example

[0064] like Figure 9-10 As shown, the difference between this embodiment and the above-mentioned embodiment 1 is that the buffer member 3 is a symmetrical spring-type structure, and has two slots 303. In this structure, the buffer member 3 can be installed at the edge of the end through hole 101 of the valve sleeve 1 by using the two slots 303. The slots 303 on both sides can automatically expand outward to achieve connection and fixation with the valve sleeve 1, and do not require welding or riveting, which has the advantage of being detachable. Example

[0065] like Figure 11-13 As shown, the difference between this embodiment and the above-mentioned embodiment 1 is only that: one end of the buffer 3 is a fixed disk 305 with an opening, the inner wall of the fixed disk 305 has two frills 306 folded outward, and the slot portion 303 is formed in the space between the frill 306 and the fixed disk 305, wherein the cross-sectional shape of the fixed disk 305 matches the end face shape of the valve sleeve 1, and the fixed disk 305 can make the buffer 3 as a whole more firmly connected to the valve sleeve 1. In this structure, after the slot portion 303 is engaged with the valve sleeve 1, riveting is used to fix the buffer 3 to the valve sleeve 1.

[0066] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A new one-way valve with a snap-on noise reduction function, characterized in that: include: The valve sleeve (1) has a hollow structure inside; A valve core (2) is axially movably mounted at the center of the valve sleeve (1); The buffer member (3) is in a sheet-like structure and comprises a slot portion (303) engaged with the valve sleeve (1), and a contact end (301) which is away from the slot portion (303) and contacts the valve core (2) when the valve core (2) moves. A bending portion (302) is provided between the slot portion (303) and the contact end (301) and deforms when the buffer member (3) is subjected to force.

2. A novel one-way valve with a snap-in noise reduction function according to claim 1, characterized in that: An end through hole (101) is provided at one end of the valve sleeve (1) away from the valve core (2), and the buffer member (3) is clamped at the edge of the end through hole (101) via a clamping groove (303).

3. A novel one-way valve with a snap-in noise reduction function according to claim 2, characterized in that: The inner wall of the end through hole (101) of the valve sleeve (1) has a mounting portion (103) extending towards the center of the end through hole (101).

4. A novel one-way valve with a snap-in noise reduction function according to claim 2, characterized in that: After the buffer member (3) is clamped at the edge of the end through hole (101) through its clamping groove portion (303), one end of the buffer member (3) close to the clamping groove portion (303) and the valve sleeve (1) are welded or riveted to each other.

5. The novel one-way valve with engagement and noise reduction function according to claim 1 is characterized in that: The contact end (301) of the buffer member (3) extends towards the center of the valve sleeve (1) and close to the valve core (2).

6. A novel one-way valve with a snap-in noise reduction function according to claim 1, characterized in that: The buffer member (3) further comprises an outwardly extending extension portion (304) at one end close to the slot portion (303); the shape of the extension portion (304) matches the shape of the end portion of the valve sleeve (1), and the inner wall of the extension portion (304) fits the outer wall of the end portion of the valve sleeve (1).

7. The novel one-way valve with engagement and noise reduction function according to claim 1 is characterized in that: The buffer member (3) is a symmetrical spring-type structure, and has two slot portions (303).

8. The novel one-way valve with engagement and noise reduction function according to claim 1 is characterized in that: One end of the buffer member (3) is a fixed disk (305) with an opening. The inner wall of the fixed disk (305) has two frills (306) folded outwards. The slot portion (303) is formed in the space between the frills (306) and the fixed disk (305).

9. The novel one-way valve with engagement and noise reduction function according to claim 1 is characterized in that: The one-way valve further comprises: A valve seat (4) is coaxial with and fixedly connected to the valve sleeve (1), has a through-type structure inside, and has a valve port (401) at one end close to the valve sleeve (1); A valve body (5) is coaxially fixedly connected to the outside of the valve seat (4), and the valve seat (4), the valve sleeve (1) and the valve core (2) are all located inside the valve body (5); The valve core (2) is a cup-shaped structure, the bottom of the cup is close to the valve port (401), and the outer wall of the valve core (2) close to the cup bottom is a conical structure. The contact end (301) of the buffer (3) can abut against the bottom of the cup of the valve core (2) during operation.

10. The novel one-way valve with engagement and noise reduction function according to claim 1, characterized in that: Radial through holes (102) are evenly distributed on the outer wall of the valve sleeve (1).

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