Leakage-proof cleaning agent bottle

By installing a one-way valve and a vent valve at the top and bottom openings of the cleaning agent bottle, the problems of leakage and negative pressure suction during use are solved, achieving normal liquid outflow and gas balance, thus meeting usage requirements.

CN224241566UActive Publication Date: 2026-05-15SUZHOU HAOTUO PLASTIC PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU HAOTUO PLASTIC PACKAGING CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-15

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  • Figure CN224241566U_ABST
    Figure CN224241566U_ABST
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Abstract

The leakage-proof cleaning agent bottle comprises a one-way valve, a bottle body and a ventilation valve, an upper opening and a lower opening are formed in the two ends of the bottle body respectively, and the one-way valve and the ventilation valve are arranged on the upper opening and the lower opening of the bottle body respectively. According to the anti-leakage cleaning agent bottle, the one-way valve and the ventilation valve are arranged on the upper opening and the lower opening of the bottle body respectively, in the working process, the bottle is inserted into a machine, the one-way valve is in an open state under the pressure of the machine, liquid flows out normally, negative pressure exists in the bottle, and when the negative pressure reaches a certain value, the ventilation valve is opened for air inflow; when the bottle is taken down from a machine, the one-way valve is closed again, the liquid leakage problem can be well solved by optimizing the structures of the two ends of the bottle, gas balance of the bottle can be maintained by using the ventilation valve, the situation that a cleaning agent cannot be sucked out is avoided, and therefore the use requirement is better met.
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Description

Technical Field

[0001] This utility model belongs to the field of cleaning agent bottle processing technology, and specifically relates to a leak-proof cleaning agent bottle. Background Technology

[0002] The cleaning agent is installed in the bottle. When using it, simply insert it into the machine. If the cap is not removed, it will cause irreversible damage to the bottle. If the cap is removed, it is easy to leak during use. Once leaked, it will not only pollute the surrounding environment, but also waste resources.

[0003] Meanwhile, if a one-way valve is only installed at one end of the bottle, a large pressure difference will occur between the inside and outside of the bottle when the machine sucks up the liquid. This can cause the bottle to become suffocated or prevent the liquid from being sucked out properly. Therefore, the existing cleaning agent bottles still need to be improved. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of this utility model is to provide a leak-proof cleaning agent bottle. By setting a one-way valve and a vent valve at the upper and lower openings of the bottle body respectively, the two can not only solve the problem of leakage, but also solve the problem of not being able to draw out due to negative pressure.

[0005] Technical Solution: To achieve the above objectives, this utility model provides a leak-proof cleaning agent bottle, comprising: a one-way valve, a bottle body, and a vent valve. The bottle body has an upper opening and a lower opening at both ends, and the one-way valve and vent valve are respectively located at the upper and lower openings of the bottle body. This leak-proof cleaning agent bottle, by setting a one-way valve and a vent valve at the upper and lower openings of the bottle body, allows for proper operation. When the bottle is inserted into the machine, the one-way valve is opened under machine pressure, allowing liquid to flow out normally. A negative pressure is created inside the bottle. When the negative pressure reaches a certain value, the vent valve opens to allow air in, restoring pressure balance inside and outside the bottle. When the bottle is removed from the machine, the one-way valve closes again. This optimization of the bottle's structure effectively reduces leakage. The vent valve maintains gas balance, preventing the cleaning agent from being unable to be drawn out, thus better meeting the needs of use.

[0006] The one-way valve includes a valve seat, a valve core, a fixing sleeve, an inner cover, and a sealing element. The valve core is located inside the valve seat, and a spring is provided on the outside of the valve core. The fixing sleeve is located above the valve seat, and a sealing element is provided between the valve seat, valve core, and fixing sleeve. The inner cover is located outside the fixing sleeve, sealing element, and valve seat. By optimizing the valve body structure of the one-way valve and the cooperation between various components, a good seal is achieved. In the non-working state, the one-way valve is closed under the action of 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 by the machine pressure, and the liquid flows out normally. When the bottle is removed from the machine, the one-way valve closes again. The entire process effectively prevents leakage.

[0007] The vent valve includes a second valve seat, a second valve core, and a second fixing sleeve. The second valve seat is located at the lower opening of the bottle body, and the second valve core is located inside the second valve seat. A second spring is provided on the outer side of the second valve core. A second protrusion below the second fixing sleeve is located at the end of the second valve seat away from the lower opening of the bottle body. The second protrusion has an upward groove, and a sealing ring is provided between the second fixing sleeve and the second valve seat. A first bend is provided on the outer side of the second valve seat, and the lower opening of the bottle body is located at the first bend, with the two components cooperating with each other. In the non-working state, the pressure inside and outside the bottle is balanced. At this time, the vent valve is closed under the action of the spring force, preventing leakage. When the liquid inside the bottle is sucked out by the machine, there will be a negative pressure inside the bottle. When the negative pressure reaches a certain value, the vent valve opens to allow air to enter, so that the pressure inside and outside the bottle is balanced again.

[0008] Furthermore, the valve seat includes a valve seat body with 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.

[0009] Preferably, the valve core includes a valve core cover and a valve core body, with the valve core body located below the valve core cover.

[0010] Furthermore, the valve core body is cross-shaped, including 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. The outer diameter between the two anti-detachment blocks is larger than the inner diameter of the sleeve.

[0011] The top of the valve core cover is conical, and a set of stops is provided on its outer side. The valve core cover cooperates with the sealing element. 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 anti-disengagement blocks, so as to better meet the needs of operation.

[0012] The sealing element includes a sealing element body. The sealing element body has an upper sealing portion and a lower sealing portion on its upper and lower sides, respectively. The upper sealing portion mates with a fixing sleeve and an inner cover, and the lower sealing portion mates with a valve seat and a valve core. The lower sealing portion has an inner groove on its inner side, which mates with a valve core cover.

[0013] 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 part, which mates with the flange of the valve seat. The mate between the bent part and the flange further improves the sealing performance and prevents leakage.

[0014] The bottle body has an external thread at its upper opening, and the inner cap has an external thread on its outer side and an internal thread on its inner side. The internal thread mates with the external thread at the upper opening of the bottle body, and the two are connected by a thread. This threaded connection facilitates installation and disassembly.

[0015] It also includes a housing with internal threads on its inner wall, which connect 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.

[0016] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0017] 1. The leak-proof cleaning agent bottle described in this utility model features a one-way valve and a vent valve at the top and bottom openings of the bottle. During operation, when the bottle is inserted into the machine, the one-way valve is opened under machine pressure, allowing liquid to flow out normally. A negative pressure is created inside the bottle. When the negative pressure reaches a certain value, the vent valve opens to allow air to enter, restoring the pressure balance inside and outside the bottle. When the bottle is removed from the machine, the one-way valve closes again. By optimizing the structure at both ends of the bottle, leakage is effectively reduced. The use of the vent valve maintains gas balance, preventing the cleaning agent from being unable to be drawn out. This not only solves the leakage problem but also addresses the negative pressure issue, thus better meeting the needs of use.

[0018] 2. The one-way valve, through optimized valve body structure and coordinated operation of various components, achieves excellent sealing. In the non-working state, the one-way valve is closed under the action of spring force, ensuring no leakage. During operation, when the 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 preservation of cleaning agents, allowing them to better meet the needs of users.

[0019] 3. The optimized structure of the vent valve ensures that when not in operation, the pressure inside and outside the bottle is balanced. At this time, the vent valve is closed under the action of the spring force, preventing leakage. When the liquid inside the bottle is sucked out by the machine, there will be negative pressure inside the bottle. When the negative pressure reaches a certain value, the vent valve opens to allow air to enter, so that the pressure inside and outside the bottle is balanced again.

[0020] 4. 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.

[0021] 5. The stop block on the valve core cover is designed to ensure a good fit between it and the sealing element.

[0022] 6. 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.

[0023] 7. 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

[0024] Figure 1 This is a schematic diagram of the structure of the leak-proof cleaning agent bottle described in this utility model;

[0025] Figure 2 This is a schematic diagram of the one-way valve in this utility model;

[0026] Figure 3 This is a schematic diagram of the one-way valve in this utility model without the outer shell and inner cover.

[0027] Figure 4 This is a schematic diagram of the valve seat structure in the one-way valve of this utility model;

[0028] Figure 5 This is a schematic diagram of the valve core structure in the one-way valve of this utility model;

[0029] Figure 6 This is a schematic diagram of the sealing element structure in the one-way valve of this utility model;

[0030] Figure 7 This is a schematic diagram of the outer shell structure in this utility model;

[0031] Figure 8 This is a schematic diagram of the structure of the vent valve in this utility model;

[0032] In the diagram: one-way valve 1, bottle body 2, and vent valve 3

[0033] Valve seat 11, valve core 12, fixing sleeve 13, inner cover 14, seal 15, spring 16.

[0034] 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, sealing body 151, upper sealing part 152, lower sealing part 153, bending part 1511, outer shell 17, inner protrusion 171, second valve seat 31, second valve core 32, second fixing sleeve 33, second spring 34, sealing ring 35, first bending part 36, second protrusion 331, inner boss 311, second inner boss 332. Detailed Implementation

[0035] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0036] Example 1

[0037] like Figure 1 The leak-proof cleaning agent bottle shown includes: a one-way valve 1, a bottle body 2, and a vent valve 3. The bottle body 2 has an upper opening and a lower opening at both ends, and the one-way valve 1 and the vent valve 3 are respectively located at the upper opening and the lower opening of the bottle body 2.

[0038] like Figures 2 to 7 The one-way valve 1 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 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, the valve core 12, and the fixing sleeve 13. The inner cover 14 is located on the outside of the fixing sleeve 13, the sealing element 15, and the valve seat 11.

[0039] like Figure 8 The vent valve 3 shown includes a second valve seat 31, a second valve core 32, and a second fixing sleeve 33. The second valve seat 31 is located at the lower opening of the bottle body 2. The second valve core 32 is located inside the second valve seat 31, and a second spring 34 is provided on the outer side of the second valve core 32. A second protrusion 331 below the second fixing sleeve 33 is located at the end of the second valve seat 31 away from the lower opening of the bottle body 2. An upward groove is provided inside the second protrusion 331, and a sealing ring 35 is provided between the second fixing sleeve 33 and the second valve seat 31. A first bending portion 36 is provided on the outer side of the second valve seat 31, and the lower opening of the bottle body 2 is located at the first bending portion 36, and the two cooperate with each other. When not in operation, the pressure inside the bottle 2 is balanced, and the vent valve 3 is closed under the spring force of the second spring 34, preventing leakage. When the bottle is inserted into the machine and enters the working state, the liquid inside the bottle is sucked out by the machine, and a negative pressure is generated inside the bottle. When the negative pressure reaches a certain value, the vent valve 3 opens to allow air to enter, so that the pressure inside the bottle 2 is balanced again.

[0040] It should be noted that the application scenario of the one-way valve described in this embodiment can be selected according to actual needs. In this embodiment, it is used for cleaning agent bottles.

[0041] Example 2

[0042] In this embodiment, the structure of the leak-proof cleaning agent bottle is the same as that in Embodiment 1.

[0043] Furthermore, the second valve seat 31 has an inner boss 311 inside, which cooperates with the second protrusion 331. The inner wall of the second protrusion 331 has a second inner boss 332, which cooperates with the second valve core 32 to prevent the second valve core 32 from falling off and to limit its movement.

[0044] like Figure 3 The 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.

[0045] like Figure 2 , 3 The valve core 12 shown in Figure 4 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. The valve core body 122 is cross-shaped and includes 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 is located outside the second valve core plate with a gap, and 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 outer side of the anti-detachment block 123 is inclined to facilitate its extension from the sleeve. After extension, the anti-detachment block 123 opens, thereby playing an anti-detachment role.

[0046] 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.

[0047] like Figure 6The 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.

[0048] 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. 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. The various components cooperate with each other to prevent liquid leakage.

[0049] The valve seat body 111 has a flange 1111 on its upper outer side, and the inner wall of the sleeve 112 has an inclined surface. The inclined surface facilitates the operation of the valve core.

[0050] The upper opening of the bottle body 2 is provided with an external thread, the outer side of the inner cover 14 is provided with an external thread, and the inner side is provided with an internal thread. The internal thread mates with the external thread at the upper opening of the bottle body 2, and the two are threadedly connected.

[0051] Example 3

[0052] The leak-proof cleaning agent bottle structure described in this embodiment is the same as that in Embodiment 1 or Embodiment 2, and further includes a shell 17. The inner wall of the shell 17 is provided with internal threads, which are threadedly connected to the inner cap 14. An inner protrusion 171 is provided on the inner side of the top of the shell 17, and the inner protrusion 171 mates with a through hole on the upper sealing portion 152 of the sealing element 15. The inner cap and the shell are connected by threads, facilitating installation and disassembly. Simultaneously, the inner protrusion, which mates with the sealing flange, further improves the tightness between the inner cap and the sealing element, effectively enhancing the overall sealing effect.

[0053] 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.

[0054] During operation, the bottle with the one-way valve 1 installed is inserted into the machine (not shown in the figure). The spring 16 inside the one-way valve 1 is in the open state under the pressure of the machine. When the liquid in the bottle is sucked out by the machine, there will be a negative pressure inside the bottle. When the negative pressure reaches a certain value, under the action of the spring force of the second spring 34, the vent valve 3 opens to allow air to enter, so that the pressure inside and outside the bottle is balanced again.

[0055] When the bottle is removed from the machine, the one-way valve closes again. This process effectively prevents leakage and facilitates the preservation of the cleaning agent, allowing it to better meet usage needs.

[0056] 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 cleaning agent bottle, characterized in that: include: The bottle body (2) and the vent valve (3) are provided with an upper opening and a lower opening at both ends of the bottle body (2). The one-way valve (1) and the vent valve (3) are respectively located at the upper opening and the lower opening of the bottle body (2).

2. The leak-proof cleaning agent bottle according to claim 1, characterized in that: The one-way valve (1) 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 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), the valve core (12), and the fixing sleeve (13). The inner cover (14) is located on the outside of the fixing sleeve (13), the sealing element (15), and the valve seat (11).

3. The leak-proof cleaning agent bottle according to claim 1, characterized in that: The vent valve (3) includes a second valve seat (31), a second valve core (32), and a second fixing sleeve (33). The second valve seat (31) is located at the lower opening of the bottle body (2). The second valve core (32) is located inside the second valve seat (31), and a second spring (34) is provided on the outside of the second valve core (32). The second protrusion (331) below the second fixing sleeve (33) is located at one end of the second valve seat (31) away from the lower opening of the bottle body (2). The second protrusion (331) has an upward groove inside, and a sealing ring (35) is provided between the second fixing sleeve (33) and the second valve seat (31). The second valve seat (31) has a first bending part (36) on the outside. The lower opening of the bottle body (2) is located at the first bending part (36), and the two cooperate with each other.

4. The leak-proof cleaning agent bottle according to claim 2, 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).

5. The leak-proof cleaning agent bottle 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).

6. The leak-proof cleaning agent bottle according to claim 5, 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). 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).

7. The leak-proof cleaning agent bottle according to claim 2, 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).

8. The leak-proof cleaning agent bottle according to claim 7, 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 cleaning agent bottle according to claim 2, characterized in that: The bottle body (2) has an external thread at the upper opening, the inner cap (14) has an external thread on the outside and an internal thread on the inside, and the internal thread engages with the external thread at the upper opening of the bottle body (2), and the two are threadedly connected.

10. The leak-proof cleaning agent bottle 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).