A leak-proof check valve

Abstract

This utility model discloses a leak-proof one-way valve, comprising: a valve seat, a valve core, a fixing sleeve, an inner cover, and a sealing element. The valve core is disposed inside the valve seat, and a spring is provided on the outside of the valve core. The fixing sleeve is disposed above the valve seat, and a sealing element is provided between the valve seat, the valve core, and the fixing sleeve. The inner cover is disposed outside the fixing sleeve, the sealing element, and the valve seat. This leak-proof one-way valve, through optimized valve body structure and the cooperation between various components, achieves excellent sealing. In the non-working state, the one-way valve is closed under the action of the spring force to prevent leakage. During operation, when a bottle with the one-way valve installed is inserted into the machine, the spring inside the one-way valve is opened by the machine pressure, allowing liquid to flow out normally. When the bottle is removed from the machine, the one-way valve closes again. The entire process effectively prevents leakage, better meeting the needs of users.

Description

Technical Field

[0001] This utility model belongs to the field of valve body anti-leakage technology, and specifically relates to an anti-leakage one-way valve. Background Technology

[0002] The cleaning agent is installed in a bottle and is directly inserted into the machine for use. However, it is prone to leakage during use. Once leaked, it will not only pollute the surrounding environment but also waste resources. Therefore, in order to meet the actual use needs, the existing one-way valve has been improved in the following way. Utility Model Content

[0003] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of this utility model is to provide a leak-proof one-way valve. By optimizing the structure of the valve body and improving the cooperation between various components, the sealing performance of the valve body is improved, and the overall leak-proof effect is effectively enhanced.

[0004] Technical Solution: To achieve the above objectives, this utility model provides a leak-proof one-way valve, comprising: a valve seat, a valve core, a fixing sleeve, an inner cover, and a sealing element. The valve core is disposed within the valve seat, and a spring is provided on the outside of the valve core. The fixing sleeve is disposed above the valve seat, and a sealing element is provided between the valve seat, the valve core, and the fixing sleeve. The inner cover is disposed on the outside of the fixing sleeve, the sealing element, and the valve seat. This leak-proof one-way valve, through optimization of the valve body structure and the cooperation between various components, achieves excellent sealing. In the non-working state, the one-way valve is closed under the action of the spring force, ensuring no leakage. During operation, when a bottle with the one-way valve installed is inserted into the machine, the spring inside the one-way valve is opened under machine pressure, allowing liquid to flow out normally. When the bottle is removed from the machine, the one-way valve closes again. The entire process effectively prevents leakage, better meeting the needs of users.

[0005] The valve seat includes a valve seat body and a sleeve below it. The sleeve is connected to the valve seat body by a set of connecting ribs, and the sleeve cooperates with the valve core.

[0006] Furthermore, the valve core includes a valve core cover and a valve core body, with the valve core body located below the valve core cover.

[0007] Preferably, the valve core body is cross-shaped, comprising a first valve core plate and a second valve core plate, which are arranged in a cross shape. The lower end of the first valve core plate has a gap outside the second valve core plate, and an anti-detachment block is provided on the outer end of the first valve core plate. The outer diameter between the two anti-detachment blocks is larger than the inner diameter of the sleeve. The valve core employs a special structural design, which not only meets the needs of the valve body in both working and non-working states, but also, with the anti-detachment blocks, prevents the valve core from excessively rising during operation, thus better meeting operational requirements.

[0008] More preferably, the top of the valve core cover is conical, and a set of stops is provided on its outer side, and the valve core cover cooperates with the sealing element. The setting of the stops allows for a good fit between the valve core cover and the sealing element.

[0009] In addition, the sealing element includes a sealing element body, and the upper and lower sides of the sealing element body are respectively provided with an upper sealing part and a lower sealing part. The upper sealing part cooperates with the fixing sleeve and the inner cover, and the lower sealing part cooperates with the valve seat and the valve core.

[0010] Preferably, the valve seat body has a flange on its upper outer side, and the inner wall of the sleeve has an inclined surface. The inclined surface facilitates the operation of the valve core.

[0011] More preferably, the inner wall of the upper sealing part is provided with at least one sealing flange, and the lower part of the sealing body is provided with a bent portion, which mates with the flange of the valve seat. The mate between the bent portion and the flange further improves the sealing performance and prevents leakage.

[0012] Furthermore, the outer side of the inner cover is provided with external threads.

[0013] In addition, it includes a housing with internal threads on its inner wall, which connects to the inner cover via the threads. The inner side of the top of the housing has an inner protrusion that mates with a through hole on the upper sealing part of the seal. The threaded connection between the inner cover and the housing facilitates installation and disassembly. Furthermore, the inner protrusion, mates with the sealing flange, further enhancing the tightness between the inner cover and the seal, effectively improving the overall sealing performance.

[0014] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0015] 1. The leak-proof one-way valve described in this utility model achieves excellent sealing through optimized valve body structure and coordinated inter-component operation. In non-working state, the one-way valve is closed under spring force to prevent leakage. During operation, when a bottle with the one-way valve installed is inserted into the machine, the spring inside the one-way valve is opened by machine pressure, allowing liquid to flow out normally. When the bottle is removed from the machine, the one-way valve closes again. The entire process effectively prevents leakage and facilitates the storage of cleaning agents, better meeting user needs.

[0016] 2. The valve core adopts a special structural design, which not only meets the needs of the valve body in working and non-working states, but also prevents the valve core from rising excessively during operation by setting an anti-detachment block, so as to better meet the needs of operation.

[0017] 3. The stop block on the valve core cover is designed to ensure a good fit between it and the sealing element.

[0018] 4. The lower part of the sealing element body is provided with a bent portion, which mates with the flange of the valve seat. The mate between the bent portion and the flange further improves the sealing performance and prevents leakage.

[0019] 5. The inner cover and outer cover are connected by threads, which facilitates installation and disassembly. At the same time, the inner protrusion is designed to cooperate with the sealing flange, which can further improve the tightness between it and the sealing element, and effectively improve the overall sealing effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the anti-leakage one-way valve described in this utility model;

[0021] Figure 2 This is a schematic diagram of the leak-proof one-way valve of this utility model without the outer shell and inner cover.

[0022] Figure 3 This is a schematic diagram of the valve seat structure in this utility model;

[0023] Figure 4 This is a schematic diagram of the valve core structure in this utility model;

[0024] Figure 5 This is a schematic diagram of the sealing element in this utility model;

[0025] Figure 6 This is a schematic diagram of the outer shell structure in this utility model;

[0026] In the figure: valve seat 11, valve core 12, fixing sleeve 13, inner cover 14, seal 15, spring 16, valve seat body 111, flange 1111, sleeve 112, connecting rib 113, valve core cover 121, valve core body 122, anti-disengagement block 123, stop block 124, seal body 151, upper sealing part 152, lower sealing part 153, bending part 1511, outer shell 17, inner protrusion 171. Detailed Implementation

[0027] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. Example

[0028] like Figures 1 to 5 The leak-proof one-way valve shown includes: a valve seat 11, a valve core 12, a fixing sleeve 13, an inner cover 14, and a sealing element 15. The valve core 12 is disposed inside the valve seat 11, and a spring 16 is provided on the outside of the valve core 12. The fixing sleeve 13 is disposed above the valve seat 11, and a sealing element 15 is provided between the valve seat 11, the valve core 12, and the fixing sleeve 13. The inner cover 14 is disposed on the outside of the fixing sleeve 13, the sealing element 15, and the valve seat 11.

[0029] like Figure 2 , 3The valve seat 11 shown includes a valve seat body 111 and a sleeve 112 below it. The sleeve 112 is connected to the valve seat body 111 by a set of connecting ribs 113. The sleeve 112 cooperates with the valve core 12.

[0030] like Figure 4 The valve core 12 shown includes a valve core cover 121 and a valve core body 122, with the valve core body 122 located below the valve core cover 121.

[0031] The valve core 122 is cross-shaped and includes a first valve core plate and a second valve core plate. The first and second valve core plates are arranged in a cross shape. The lower end of the first valve core plate is located outside the second valve core plate and has a gap. An anti-detachment block 123 is provided on the outer side of the end of the first valve core plate. The outer diameter between the two anti-detachment blocks 123 is larger than the inner diameter of the sleeve 112. The top of the valve core cover 121 is conical, and a set of stops 124 is provided on its outer side. The valve core cover 121 cooperates with the sealing element 15.

[0032] like Figure 5 The sealing element 15 shown includes a sealing element body 151. The sealing element body 151 has an upper sealing portion 152 and a lower sealing portion 153 on its upper and lower sides, respectively. The upper sealing portion 152 mates with the fixing sleeve 13 and the inner cover 14, and the lower sealing portion 153 mates with the valve seat 11 and the valve core 12. The inner side of the lower sealing portion 153 has an inner groove that mates with the valve core cover. The valve seat body 111 has a step inside, which mates with the sealing element 15. The lower surface of the lower sealing portion 153 is located within the placement area formed by the step and the stop block 124 of the valve seat body 111, fitting tightly. The top of the valve core cover 121 mates with the inner wall of the lower sealing portion 153 of the sealing element 15. The gap between the sealing element body 151 and the upper sealing portion 152 mates with the fixing sleeve 13, further improving its sealing performance.

[0033] The valve seat body 111 has a flange 1111 on the upper outer side, and the inner wall of the sleeve 112 has an inclined surface.

[0034] The inner wall of the upper sealing part 152 is provided with at least one sealing flange 154, and the lower part of the sealing body 151 is provided with a bent part 1511, which cooperates with the flange 1111 of the valve seat 11. The outer side of the inner cover 14 is provided with external threads. It should be noted that the structure of the valve seat 11, valve core 12, fixing sleeve 13, inner cover 14 and sealing element 15 can be adjusted according to actual needs, as long as it meets the needs of the cleaning agent bottle, and the various components cooperate with each other to prevent liquid leakage.

[0035] Example 2

[0036] The leak-proof one-way valve structure described in this embodiment is the same as that in Embodiment 1, and further includes a housing 17. The inner wall of the housing 17 is provided with internal threads, and it is threadedly connected to the inner cover 14. An inner protrusion 171 is provided on the inner side of the top of the housing 17, and the inner protrusion 171 mates with a through hole on the upper sealing portion 152 of the sealing member 15. The inner cover 14 and the housing are connected by threads, facilitating the installation and disassembly of the housing and better meeting the user's needs.

[0037] It should be noted that the application scenario of the leak-proof one-way valve described in this embodiment can be selected according to actual needs. The following description uses its application to cleaning agent bottles as an example.

[0038] In this embodiment, a leak-proof one-way valve is used by first unscrewing the outer shell 17, and then inserting the bottle with the cap one-way valve onto the machine. When not in operation, the one-way valve is closed under the spring force of the spring 16 to ensure no leakage.

[0039] When the bottle with the one-way valve installed is inserted into the machine, the spring 16 inside the one-way valve is in the open state under the pressure of the machine, and the liquid flows out normally. When the bottle is removed from the machine, the one-way valve closes again. The whole process effectively prevents leakage and facilitates the storage of the cleaning agent, thus allowing it to better meet the needs of use.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A leak-proof one-way valve, characterized in that: include: The valve seat (11), valve core (12), fixing sleeve (13), inner cover (14) and sealing element (15) are provided. The valve core (12) is located inside the valve seat (11), and a spring (16) is provided on the outside of the valve core (12). The fixing sleeve (13) is located above the valve seat (11), and a sealing element (15) is provided between the valve seat (11), valve core (12) and fixing sleeve (13). The inner cover (14) is located on the outside of the fixing sleeve (13), sealing element (15) and valve seat (11).

2. The leak-proof check valve according to claim 1, characterized in that: The valve seat (11) includes a valve seat body (111) and a sleeve (112) is provided below it. The sleeve (112) is connected to the valve seat body (111) by a set of connecting ribs (113). The sleeve (112) cooperates with the valve core (12).

3. The leak-proof check valve according to claim 2, characterized in that: The valve core (12) includes a valve core cover (121) and a valve core body (122), with the valve core body (122) located below the valve core cover (121).

4. The leak-proof check valve according to claim 3, characterized in that: The valve core (122) is cross-shaped and includes a first valve core plate and a second valve core plate. The first valve core plate and the second valve core plate are arranged in a cross shape. The lower end of the first valve core plate is located outside the second valve core plate and has a gap. The outer end of the first valve core plate is provided with an anti-detachment block (123). The outer diameter between the two anti-detachment blocks (123) is larger than the inner diameter of the sleeve (112).

5. The leak-proof check valve according to claim 3, characterized in that: The top of the valve core cover (121) is conical, and a set of blocks (124) are provided on its outer side. The valve core cover (121) cooperates with the sealing element (15).

6. The leak-proof check valve according to claim 1, characterized in that: The sealing element (15) includes a sealing element body (151). The upper sealing part (152) and the lower sealing part (153) are respectively provided on the upper and lower sides of the sealing element body (151). The upper sealing part (152) cooperates with the fixing sleeve (13) and the inner cover (14), and the lower sealing part (153) cooperates with the valve seat (11) and the valve core (12).

7. The leak-proof check valve according to claim 2, characterized in that: The valve seat body (111) has a flange (1111) on the upper outer side, and the inner wall of the sleeve (112) has an inclined surface.

8. The leak-proof check valve according to claim 6, characterized in that: The inner wall of the upper sealing part (152) is provided with at least one sealing flange (154), and the lower part of the sealing body (151) is provided with a bent part (1511), which cooperates with the flange (1111) of the valve seat (11).

9. The leak-proof check valve according to claim 1, characterized in that: The outer side of the inner cover (14) is provided with external threads.

10. The leak-proof check valve according to claim 1, characterized in that: It also includes a housing (17), the inner wall of which is provided with an internal thread and is connected to the inner cover (14) by a thread, and the inner side of the top of the housing (17) is provided with an inner protrusion (171), which is engaged with the perforation on the upper sealing part (152) of the seal (15).

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