A valve with a spring control

Abstract

The utility model discloses a valve of elastic control, including upper casing and lower casing, be equipped with liquid inlet on the upper casing, be equipped with liquid outlet on the lower casing, be equipped with the valve core subassembly between the liquid inlet with the liquid outlet, the valve core subassembly includes push rod, elastic part and sealing element, the sealing element is set on the push rod, the elastic part is set between the lower casing with the push rod, the lower casing has the insertion part, the push rod has the accommodation groove, the insertion part inserts the accommodation groove, the lower casing still is equipped with the limiting portion, the push rod can with the limiting portion abuts to restrict the stroke of push rod. The utility model discloses a valve of elastic control assembly procedure simple and the cost is lower.

Description

Technical Field

[0001] This utility model specifically relates to a spring-loaded valve. Background Technology

[0002] Current spring-loaded valves consist of a housing and a sealing element installed inside the housing. The sealing element includes a bushing, a push rod, a spring, and a seal. The bushing is composed of an outer shell and an inner sleeve. The outer wall of the outer shell is tightly fitted against the inner wall of the housing. The spring is sleeved on the inner sleeve, and the push rod is inserted into the inner sleeve. When the fluid pressure is greater than the spring force, it pushes the push rod upward, causing the seal to leave the inlet. The fluid enters and is discharged from the outlet through the delivery channel. The assembly process of the spring-loaded valve is relatively complicated and costly. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a spring-loaded valve with a simple assembly process and low cost.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A spring-loaded valve includes an upper housing and a lower housing. The upper housing has an inlet, and the lower housing has an outlet. A valve core assembly is disposed between the inlet and the outlet. The valve core assembly includes a push rod, an elastic element, and a sealing element. The sealing element is sleeved on the push rod, and the elastic element is sleeved between the lower housing and the push rod. The lower housing has a insertion portion, and the push rod has a receiving groove into which the insertion portion is inserted. The lower housing also has a limiting portion, and the push rod can abut against the limiting portion to limit the stroke of the push rod.

[0006] In a preferred embodiment, the upper housing has an upper cavity, the lower housing has a lower cavity, and the upper cavity and the lower cavity are in communication; the lower housing is provided with a guide extension portion, which is inserted into the upper cavity.

[0007] In a preferred embodiment, a reinforcing portion is provided between the guide extension portion and the limiting portion; a limiting groove for the elastic member to extend into is provided between the reinforcing portion and the limiting portion.

[0008] In a preferred embodiment, the push rod has a first end and a second end, the seal is sleeved on the first end of the push rod, and the second end is able to abut against the limiting portion; the first end is higher than the seal.

[0009] In a preferred embodiment, the upper housing has an inclined surface, and the seal abuts against the inclined surface, resulting in a good sealing effect.

[0010] In a preferred embodiment, a separator is provided between the first end and the second end, the seal is disposed between the first end and the separator, and the receiving groove is disposed between the separator and the second end.

[0011] In a preferred embodiment, one end of the elastic element is fixed to the separator, and the other end is fixed in the limiting groove.

[0012] In a preferred embodiment, the lower end of the plug portion is provided with a plurality of hollow portions.

[0013] In a preferred embodiment, the lower end of the plug portion is provided with a cross-shaped support post, and the hollow portion is located at the intersection of the cross-shaped support post.

[0014] The present invention adopts the above solution and has the following advantages compared with the prior art:

[0015] In this invention, the spring-loaded valve is assembled by first fitting the sealing element onto the push rod, then connecting one end of the elastic element to the push rod and the other end to the lower housing, and finally inserting the upper housing into the lower housing and fixing the upper and lower housings together using ultrasonic welding or other methods. The assembly process of the entire device is simple, saving costs and making it convenient to use. Moreover, the lower housing is equipped with a limiting part, which can effectively limit the stroke of the push rod and prevent the push rod from continuing to move downward and affecting the fluid flow. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of a spring-loaded valve according to an embodiment of the present utility model;

[0018] Figure 2 This is a front view of the spring-loaded valve according to an embodiment of the present utility model;

[0019] Figure 3 This is an exploded view of the spring-loaded valve according to an embodiment of the present utility model;

[0020] Figure 4 This is a cross-sectional view of the spring-loaded valve according to an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of a cross-shaped support column according to an embodiment of the present utility model.

[0022] in,

[0023] 1. Upper shell; 11. Inclined slope; 12. Liquid inlet; 13. Liquid inlet channel;

[0024] 2. Lower shell; 21. Insertion part; 211. Cross support column; 212. Hollowed-out part; 22. Limiting part; 23. Guide extension part; 24. Liquid outlet; 25. Reinforcing part; 26. Limiting groove;

[0025] 3. Valve core assembly; 31. Push rod; 311. Receiving groove; 312. First end; 313. Second end; 314. Separator; 32. Elastic element; 33. Sealing element;

[0026] 4. Indicator signs. Detailed Implementation

[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is for the purpose of aiding understanding the present invention, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] Reference Figures 1 to 5 As shown, the spring-loaded valve provided in this embodiment includes an upper housing 1 and a lower housing 2. The upper housing 1 has a liquid inlet 12, and the lower housing 2 has a liquid outlet 24. The upper housing 1 has an upper cavity communicating with the liquid inlet 12, and the lower housing 2 has a lower cavity communicating with the liquid outlet 24. The liquid inlet 12 and the upper cavity are connected through a liquid inlet channel 13, and the lower cavity and the liquid outlet 24 are connected through a liquid outlet channel. When the upper housing 1 and the lower housing 2 are connected, the upper cavity and the lower cavity are also interconnected. Specifically, the lower cavity is located in the upper cavity, that is, the liquid inlet 12, the liquid inlet channel 13, the upper cavity, the lower cavity, the liquid outlet channel, and the liquid outlet 24 are interconnected. Fluid enters from the liquid inlet 12, passes through the liquid inlet channel 13, the upper cavity, the lower cavity, and the liquid outlet channel in sequence, and finally flows out from the liquid outlet 24. It should be noted that in this embodiment, the "upper" and "lower" directions refer to... Figure 2 The vertical direction shown on the paper is upward for inlet 12 and downward for outlet 24.

[0029] Furthermore, the inlet 12 and outlet 24 are arranged opposite each other in the vertical direction. A valve core assembly 3 is provided between the inlet 12 and outlet 24. The valve core assembly 3 includes a push rod 31, an elastic element 32, and a sealing element 33. The sealing element 33 is specifically an O-ring, and the elastic element 32 is specifically a spring. The sealing ring is sleeved on the push rod 31. Specifically, the push rod 31 has a first end 312 and a second end 313 opposite to it. A disc-shaped separator 314 is provided between the first end 312 and the second end 313. The sealing ring is sleeved between the first end 312 and the separator 314. When the push rod 31 moves upward, the sealing ring abuts against the upper housing 1, which plays a sealing role and prevents liquid backflow. Further, referring to... Figure 4 As shown, the upper housing 1 is provided with an inclined surface 11, and the sealing element 33 abuts against the inclined surface 11, which has a good sealing effect.

[0030] A receiving groove 311 is provided between the separator 314 and the second end 313. The shape of the receiving groove 311 is similar to a hollow cylinder. A plug-in part 21 is provided in the middle of the lower housing 2. The shape of the plug-in part 21 is similar to a solid cylinder. The plug-in part 21 is inserted into the receiving groove 311. The push rod 31 can reciprocate in the up and down direction relative to the plug-in part 21. At this time, the plug-in part 21 plays a limiting and guiding role to prevent the push rod 31 from deviating.

[0031] More specifically, when fluid flows in from the inlet 12, the first end 312 of the push rod 31 moves downward under pressure, the spring is compressed, and the receiving groove 311 moves downward relative to the insertion part 21. The insertion part 21 limits the direction of movement of the receiving groove 311. When the fluid flows out from the outlet 24, the compressed spring tries to return to its original length, driving the push rod 31 and the sealing ring to move upward. At this time, the receiving groove 311 moves upward relative to the insertion part 21. That is, in this embodiment, the insertion part 21 is provided on the lower housing 2. The insertion part 21 and the lower housing 2 are designed as an integral part, and the insertion part 21 and the receiving groove 311 of the push rod 31 are matched. The structure is relatively simple, the assembly is relatively easy, and the usage cost is low.

[0032] Reference Figures 1 to 3 As shown, indicator marks 4 are provided on the outer wall of the upper housing 1 to improve installation accuracy. (Refer to...) Figure 4As shown, the lower housing 2 is provided with a limiting part 22, which is specifically a stepped surface. The limiting part 22 is located at the lower end of the insertion part 21. When the fluid flow rate is large, the second end 313 of the push rod 31 can abut against the limiting part 22 when it moves downward. The function of the limiting part 22 is to prevent the push rod 31 from moving to the bottom of the lower housing 2 and affecting the water output. Furthermore, the limiting part 22 can also be used to control the center position of the spring, so that the spring will only move within the limited area during installation and operation, and will not cause swaying or shaking, which would lead to uneven force on the spring and cause the valve core assembly 3 to sway or interfere during the reciprocating stroke.

[0033] The lower housing 2 is also provided with a guide extension 23, which extends into the interior of the upper cavity. The shape of the guide extension 23 is similar to a vertical, thin, slatted bramble, which can also provide stroke limitation for the valve core assembly 3, allowing the valve core assembly 3 to move within the designed area. The entire spring-loaded valve has sufficient sealing effect, eliminating wobbling and leakage. A reinforcing part 25 is provided between the guide extension 23 and the limiting part 22 to improve the strength of the guide extension 23. Furthermore, a limiting groove 26 for the spring to extend into is provided between the reinforcing part 25 and the limiting part 22. The elastic element 32 is sleeved between the lower housing 2 and the push rod 31. Specifically, one end of the elastic element 32 is fixed to the separator 314 of the push rod 31, and the other end is fixed in the limiting groove 26.

[0034] The first end 312 of the push rod 31 is close to the liquid inlet 12, and the second end 313 of the push rod 31 is close to the liquid outlet 24. Fluid flows from the liquid inlet 12 into the cavity of the first housing 1 and the second housing 2 and finally flows out from the liquid outlet 24. Furthermore, the first end 312 of the push rod 31 is higher than the seal 33. This ensures that when the spring pressure or the reverse pressure is large, the first end 312 of the push rod will first push against the inclined surface 11 to form a limit, thereby preventing the sealing ring from falling into the liquid inlet channel 13, causing jamming and failure.

[0035] Furthermore, the lower end of the insertion part 21 is provided with multiple hollowed-out parts 212, specifically, in conjunction with Figure 5 As shown, the lower end of the plug-in part 21 is provided with a downwardly protruding cross support column 211, and the hollow part 212 is located at the intersection of the cross support column 211, that is, there are four hollow parts 212, which can support a large flow of fluid. The spring control valve has high working efficiency. The fluid flowing into the lower cavity flows out to the liquid outlet 24 through multiple hollow parts 212.

[0036] In this embodiment, during assembly, the sealing ring and push rod 31 are pre-installed. Then, one end of the spring is fixed to the limiting groove 26 of the second housing 2, and the other end is fixed to the push rod 31. Finally, the upper housing 1 is placed and ultrasonic welding is performed to fix the upper housing 1 and the lower housing 2 (in other embodiments, threaded connection or snap-fit ​​connection can also be used). Finally, the product's functionality can be tested. When the spring-loaded valve is working, fluid enters from the inlet 12, the push rod 31 and the spring are subjected to force, the spring is compressed, and the sealing ring and push rod 31 move downward to open the spring-loaded valve. The fluid flows out from the inlet 12 to the outlet 24. When the fluid stops entering the inlet 12, the spring moves upward and drives the push rod 31 and the sealing ring to move upward until the sealing ring and the inclined surface 11 abut, thus closing the spring-loaded valve.

[0037] The spring-loaded valve in this embodiment simplifies the assembly process through an integrated design, reduces the number of parts, lowers production costs, simplifies assembly, and improves overall reliability. During opening and closing, it effectively guides, positions, and limits movement. The valve's sealing ring experiences uniform pressure, the spring's rebound is stable, and it has stroke limits, effectively preventing instantaneous leakage caused by vibration or pressure fluctuations. This ensures sealing performance while reducing manufacturing costs and allows for customized opening pressures.

[0038] As indicated in this specification and claims, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, and these steps and elements do not constitute an exclusive list; the method or apparatus may also include other steps or elements. The term "and / or" as used herein includes any combination of one or more of the associated listed items.

[0039] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0040] The above embodiments are only for illustrating the technical concept and features of this utility model, and are preferred embodiments. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly, and should not be construed as limiting the protection scope of this utility model. All equivalent transformations or modifications made based on the principles of this utility model should be covered within the protection scope of this utility model.

Claims

1. A spring-loaded valve, comprising an upper housing and a lower housing, wherein the upper housing is provided with a liquid inlet and the lower housing is provided with a liquid outlet, characterized in that, A valve core assembly is provided between the liquid inlet and the liquid outlet. The valve core assembly includes a push rod, an elastic element, and a sealing element. The sealing element is sleeved on the push rod, and the elastic element is sleeved between the lower housing and the push rod. The lower housing has a plug-in portion, and the push rod has a receiving groove. The plug-in portion is inserted into the receiving groove. The lower housing also has a limiting portion, and the push rod can abut against the limiting portion to limit the stroke of the push rod.

2. The spring-loaded valve according to claim 1, characterized in that, The upper housing has an upper cavity, and the lower housing has a lower cavity, with the upper cavity and the lower cavity communicating with each other; the lower housing is provided with a guide extension, which is inserted into the upper cavity.

3. The spring-loaded valve according to claim 2, characterized in that, A reinforcing portion is provided between the guide extension portion and the limiting portion; a limiting groove is provided between the reinforcing portion and the limiting portion for the elastic member to extend into.

4. The spring-loaded valve according to claim 3, characterized in that, The push rod has a first end and a second end. The sealing element is sleeved on the first end of the push rod, and the second end can abut against the limiting part. The first end is higher than the sealing element.

5. The spring-loaded valve according to claim 4, characterized in that, The upper housing is provided with an inclined surface, and the sealing element abuts against the inclined surface.

6. The spring-loaded valve according to claim 5, characterized in that, A separator is provided between the first end and the second end, a seal is provided between the first end and the separator, and a receiving groove is provided between the separator and the second end.

7. The spring-loaded valve according to claim 6, characterized in that, One end of the elastic element is fixed to the separator, and the other end is fixed in the limiting groove.

8. The spring-loaded valve according to claim 1, characterized in that, The lower end of the connector is provided with multiple hollowed-out sections.

9. The spring-loaded valve according to claim 8, characterized in that, The lower end of the plug is provided with a cross support post, and the hollow part is located at the intersection of the cross support post.

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