Lightweight liquid detergent bottle

CN224929448UActive Publication Date: 2026-11-03SI CHUAN WANG SHI HONG SE SU JIAO JI TUAN YOU XIAN GONG SI
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Patent Information

Application Number
CN202521883254.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2026-11-03
Estimated Expiration
2035-09-02

AI Technical Summary

Technical Problem

Existing dishwashing liquid bottles have poor sealing properties, causing the dishwashing liquid to be exposed to air for extended periods, affecting the stability of its ingredients and potentially leading to bacterial growth.

Method used

A lightweight dishwashing liquid bottle was designed with a double-sealing structure. The first internal thread of the screw cap engages with the external thread of the bottle body, and a sealing gasket is added to achieve a seal. Combined with the design of the telescopic ring column and spring, the sealing ring slides and seals against the side wall of the pressure tube when the pump is moved, preventing dishwashing liquid leakage and contact with air.

Benefits of technology

It achieves effective sealing of the detergent, preventing ingredient degradation and bacterial growth, ensuring cleaning effect, and achieves lightweight design through the hollow cavity inside the handle, increasing the detergent capacity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of light weight liquid detergent bottles, the first internal thread of screw cap is cooperated with the outer thread of bottle body opening, then the second internal thread of screw cap is located in auxiliary thread and the outer thread of bottle body opening form the cooperation of pressure increase, again cooperation sealing washer realizes the double sealing of screw cap and bottle body opening, avoid liquid detergent from screw cap leakage, also avoid liquid detergent and the air contact of external environment;When moving up and down on pressure pipe, first sealing ring and pressure pipe side wall sliding seal, and under the action of telescopic ring column and second spring, telescopic ring column can move up and down with pressure pipe, by compression or stretch, give first sealing ring and pressure pipe side wall with buffering, avoid first sealing ring to be pulled and hurt;Handle is provided with cavity inside, handle is connected with bottle body top, cavity is communicated with bottle body inside, so that handle realizes light weight design, also so that more liquid detergent can be loaded.
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Description

Technical Field

[0001] This utility model relates to the field of dishwashing liquid containers, and in particular to a lightweight dishwashing liquid bottle. Background Technology

[0002] Dishwashing liquid is a daily consumer product, an environmentally friendly and safe product. It cleans gently, produces fine foam, quickly breaks down grease, and rapidly removes dirt and bacteria, effectively and thoroughly cleaning without residue. It has a light, pleasant fruity scent and leaves skin clean and shiny like new. Regular use ensures home hygiene and prevents the spread of germs. Main ingredients: Sodium linear alkylbenzene sulfonate, sodium lauryl sulfate, sodium olefin sulfonate, sodium fatty alcohol polyoxyethylene ether sulfate, alkylolamide, alkyl glycoside, alkyl betaine, etc. Sodium alkyl sulfonate and sodium fatty alcohol ether sulfate are both anionic surfactants, petrochemical products used to remove grease stains.

[0003] Existing detergent bottles often have poor sealing properties, which can lead to prolonged exposure of the detergent to air. This can eventually cause the active ingredients in the detergent to degrade or become contaminated with microorganisms, potentially affecting cleaning performance or even causing bacteria growth.

[0004] Therefore, it is necessary to develop a lightweight detergent bottle to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to design a lightweight dishwashing liquid bottle to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions: Lightweight dishwashing liquid bottles, including: Bottle body; The upper end of the bottle body is provided with an upward-protruding opening, and the opening is provided with external threads; Handle; The handle has an internal cavity, and it connects to the top of the bottle body, while the cavity is connected to the inside of the bottle body. A press pump; the press pump includes a pressure cap, a liquid outlet pipe, a pressure tube, a retaining ring post, a first retaining bead, a capping container, a mounting container, a first spring, a second retaining bead, a third connecting pipe, and a screw cap. The pressure cap has a flow channel with its first opening on one side. The first end of the liquid outlet pipe is connected to the first opening. The second opening of the flow channel is located at the bottom center of the pressure cap. The upper end of the pressure tube is connected to the second opening. The retaining ring post is installed inside the pressure tube, with a frustum-shaped opening at its center, the larger diameter end of the opening facing upwards. The first retaining bead is placed inside the opening, its diameter being larger than the smaller diameter end of the opening. The lower end of the pressure tube is slidably placed inside the mounting container, its diameter being smaller than the diameter of the mounting container. The lower end of the pressure tube has a larger diameter than the upper end. The bottom of the mounting bucket is connected to the upper end of the third connecting tube through the third opening. The lower end of the third connecting tube is inserted below the liquid surface of the detergent bottle. The upper end of the first spring is placed inside the lower end of the pressure tube, and the lower end of the first spring is placed at the bottom of the mounting bucket. The second stop bead is placed inside the mounting bucket and located on the third opening. The diameter of the second stop bead is larger than the diameter of the third opening. An annular flange is formed at the upper edge of the mounting bucket. The cap is formed as an annular ring. The cap is fitted onto the outside of the mounting bucket and located below the flange. The lower part of the inner wall of the cap is provided with a first internal thread, and the upper part is provided with a second internal thread. The pitch of the second internal thread is smaller than the pitch of the first internal thread. The cap mates with the threaded opening on the bottle.

[0007] Furthermore, a sealing gasket is provided on the top of the screw cap.

[0008] As a preferred embodiment, the sidewalls of the screw cap are inclined inward at 5-8° from the bottom to the top.

[0009] Furthermore, the detergent bottle also includes a limiting bracket, which is installed at the bottom of the mounting barrel and is used to limit the upward distance of the second stop bead.

[0010] Furthermore, the detergent bottle also includes a capping barrel, which includes a vertically arranged mounting ring post and a horizontally arranged mounting ring. The mounting ring is fitted onto the upper end of the pressure tube and is located inside the mounting barrel. The mounting ring is interference-fitted with the mounting barrel, and a second sealing ring is provided between the mounting ring and the flange plate.

[0011] Furthermore, the detergent bottle also includes a telescopic ring, a fixing ring, and a first sealing ring. The telescopic ring and the fixing ring are both fitted onto the upper end of the pressure tube. The upper end of the telescopic ring is connected to the lower inner end of the cover barrel, and the lower end of the telescopic ring is connected to the upper end of the fixing ring. The first sealing ring is fixedly installed on the inner wall of the fixing ring, and the inner wall of the first sealing ring slides and seals with the upper side wall of the pressure tube.

[0012] Preferably, a second spring is embedded inside the telescopic ring column along its axial direction.

[0013] The beneficial effects of this utility model are as follows: In this application, the first internal thread of the cap and the external thread at the bottle opening form a preliminary fit. Then, the second internal thread of the cap, located on the auxiliary thread, forms a pressure-increasing fit with the external thread at the bottle opening. Combined with a sealing gasket, this achieves a double seal between the cap and the bottle opening, preventing detergent leakage from the cap and also preventing the detergent from contacting the ambient air. The cap container is equipped with a telescopic ring, a second spring, a fixing ring, and a first sealing ring. When the pressure tube moves up and down, the first sealing ring slides and seals against the side wall of the pressure tube. Under the action of the telescopic ring and the second spring, the telescopic ring can move up and down with the pressure tube, providing cushioning for the fit between the first sealing ring and the side wall of the pressure tube through compression or stretching, preventing damage to the first sealing ring. The handle has an internal cavity that connects to the top of the bottle and communicates with the inside of the bottle, enabling a lightweight handle design and allowing for a larger capacity of detergent. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the press pump in this application; Figure 3 for Figure 2 A schematic diagram of the structure of part A in the diagram; Figure 4 This is a schematic diagram of another embodiment of the screw cap in this application.

[0015] Legend: 1. Bottle body, 2. Handle, 3. Pump, 4. Cap, 5. Dispensing pipe, 6. Pressure pipe, 7. First connecting pipe, 8. Second connecting pipe, 9. Retaining ring post, 10. First retaining bead, 11. Capping barrel, 12. Screw cap, 13. First internal thread, 14. Second internal thread, 15. Sealing gasket, 16. Mounting barrel, 17. First spring, 18. Limiting bracket, 19. Second retaining bead, 20. Third connecting pipe, 21. Telescopic ring post, 22. Second spring, 23. Fixing ring, 24. First sealing ring, 25. Flange plate, 26. Second sealing ring. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] like Figure 1-3 As shown, the lightweight dishwashing liquid bottle includes: Bottle body 1; The upper end of bottle body 1 is provided with an upwardly protruding opening, and the opening is provided with external threads; Handle 2; Handle 2 has an internal cavity, and handle 2 is connected to the top of bottle body 1, and the cavity is connected to the inside of bottle body 1; Press pump 3; Press pump 3 includes a pressure cap 4, a liquid outlet pipe 5, a pressure pipe 6, a retaining ring post 9, a first retaining bead 10, a cover barrel 11, a mounting barrel 16, a first spring 17, a second retaining bead 19, a third connecting pipe 20, and a screw cap 12. A flow channel is provided inside the pressure cap 4, with the first opening of the flow channel located on one side of the pressure cap 4. The first end of the liquid outlet pipe 5 is connected to the first opening, and the second opening of the flow channel is located at the bottom center of the pressure cap 4. The upper end of the pressure pipe 6 is connected to the second opening. The retaining ring post 9 is installed inside the pressure pipe 6, and a frustum-shaped opening is provided at the center of the retaining ring post 9, with the larger diameter end of the opening at the top. The first retaining bead 10 is placed inside the opening, and its diameter is larger than the smaller diameter end of the opening. The lower end of the pressure pipe 6 is slidably placed inside the mounting barrel 16, and its diameter is slightly smaller than the diameter of the mounting barrel 16. The lower diameter is larger than the upper diameter. The bottom of the mounting barrel 16 is connected to the upper end of the third connecting pipe 20 through the third opening. The lower end of the third connecting pipe 20 is inserted below the liquid surface of the detergent bottle. The upper end of the first spring 17 is placed inside the lower end of the pressure tube 6. The lower end of the first spring 17 is placed inside the bottom of the mounting barrel 16. The second stop bead 19 is placed inside the mounting barrel 16 and located on the third opening. The diameter of the second stop bead 19 is larger than the diameter of the third opening. An annular flange plate 25 is formed at the upper edge of the mounting barrel 16. The screw cap 12 is formed into an annular shape. The screw cap 12 is fitted outside the mounting barrel 16 and located below the flange plate 25. The lower part of the inner wall of the screw cap 12 is provided with a first internal thread 13, and the upper part is provided with a second internal thread 14. The pitch of the second internal thread 14 is smaller than the pitch of the first internal thread 13. The screw cap 12 is engaged with the opening thread on the bottle body 1.

[0024] The upper end of the pressure tube 6 is the first connecting tube 7, and the lower end of the pressure tube 6 is the second connecting tube 8. The diameter of the first connecting tube 7 is smaller than the diameter of the second connecting tube 8. A step is formed at the connection between the first connecting tube 7 and the second connecting tube 8. The upper end of the first spring 17 is inserted into the second connecting tube 8 and connected to the step. like Figure 1 As shown, a sealing gasket 15 is provided on the top of the screw cap 12. The sealing gasket 15 provides a secondary seal between the screw cap 12 and the bottle body 1.

[0025] like Figure 4 As shown, the sidewall of the cap 12 slopes inward at a 5-8° angle from the bottom to the top. This structural design makes the cap 12 tighten as it is screwed down, resulting in a better seal.

[0026] like Figure 2 As shown, the detergent bottle also includes a limiting bracket 18, which is installed at the bottom of the mounting barrel 16 and is used to limit the upward distance of the second stop bead 19.

[0027] like Figure 3As shown, the detergent bottle also includes a capping container 11. The capping container 11 includes a vertically arranged mounting ring post and a horizontally arranged mounting ring. The mounting ring is fitted onto the upper end of the pressure tube 6 and is located inside the mounting container 16. The mounting ring and the mounting container 16 are interference-fitted. A second sealing ring 26 is provided between the mounting ring and the flange plate 25. The second sealing ring 26 can prevent detergent from overflowing between the mounting ring and the flange plate 25, thus achieving a sealing effect.

[0028] like Figure 3 As shown, the detergent bottle also includes a telescopic ring 21, a fixing ring 23, and a first sealing ring 24. The telescopic ring 21 and the fixing ring 23 are both fitted onto the upper end of the pressure tube 6. The upper end of the telescopic ring 21 is connected to the lower inner side of the cover container 11, and the lower end of the telescopic ring 21 is connected to the upper end of the fixing ring 23. The first sealing ring 24 is fixedly installed on the inner wall of the fixing ring 23, and the inner wall of the first sealing ring 24 slides and seals against the upper side wall of the pressure tube 6. The telescopic ring 21 is made of elastic rubber, while the fixing ring 23 is made of a rigid material. When the pressure tube 6 moves downward, under the frictional force between the first sealing ring 24 and the pressure tube 6, the first sealing ring 24 does not initially move relative to the pressure tube 6. Instead, it drives the telescopic ring 21 to stretch downward. When it reaches the limit position, the first sealing ring 24 and the pressure tube 6 move relative to each other, achieving a sliding seal between the first sealing ring 24 and the pressure tube 6. However, the telescopic ring 21 acts as a buffer for the sliding seal, preventing damage to the first sealing ring 24 from sudden excessive friction. Similarly, when the pressure tube 6 rebounds upward, under the frictional force between the first sealing ring 24 and the pressure tube 6, the first sealing ring 24 does not initially move relative to the pressure tube 6. Instead, it drives the telescopic ring 21 to compress upward (approximately none if the rebound force is small). When it reaches the limit position, the first sealing ring 24 and the pressure tube 6 move relative to each other, achieving a sliding seal between the first sealing ring 24 and the pressure tube 6.

[0029] like Figure 3 As shown, a second spring 22 is embedded inside the telescopic ring 21 along its axial direction. The function of the second spring 22 is to limit the elastic direction of the telescopic ring 21 and increase its structural stability.

[0030] Working principle: During assembly, insert the lower part of the mounting bucket 16 and the third connecting tube 20 into the opening of the bottle body 1, with the lower end of the third connecting tube 20 close to the bottom of the bottle body 1, and then tighten the cap 12 to the opening of the bottle body 1. During operation, pressing down on the cap 4 causes the second connecting tube 8 to move downwards within the mounting container 16, overcoming the elastic force of the first spring 17. The first baffle 10 is then lifted. Releasing the cap 4 causes the first baffle 10 to move downwards, blocking the baffle ring 9. The second connecting tube 8 continues to move upwards, creating a negative pressure within the mounting container 16. The second baffle 19 is then drawn upwards, and the detergent in the bottle 1 is drawn into the mounting container 16 along the third connecting tube 20. Repeating this process, the detergent is drawn into the pressure tube 6, then squeezed out through the cap 4 and the outlet tube 5. The cooperation between the baffle ring 9 and the first baffle 10, as well as the cooperation between the second baffle 19 and the opening at the bottom of the mounting container 16, effectively seals most of the detergent stored in the bottle 1 when not in use.

[0031] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A lightweight dishwashing liquid bottle, characterized in that, include: Bottle body; the upper end of the bottle body is provided with an upward-protruding opening, and the opening is provided with external threads; Handle; The handle has an internal cavity, and it connects to the top of the bottle body, while the cavity is connected to the inside of the bottle body. A press pump; the press pump includes a pressure cap, a liquid outlet pipe, a pressure tube, a retaining ring post, a first retaining bead, a capping container, a mounting container, a first spring, a second retaining bead, a third connecting pipe, and a screw cap. The pressure cap has a flow channel with its first opening on one side. The first end of the liquid outlet pipe is connected to the first opening. The second opening of the flow channel is located at the bottom center of the pressure cap. The upper end of the pressure tube is connected to the second opening. The retaining ring post is installed inside the pressure tube, with a frustum-shaped opening at its center, the larger diameter end of the opening facing upwards. The first retaining bead is placed inside the opening, its diameter being larger than the smaller diameter end of the opening. The lower end of the pressure tube is slidably placed inside the mounting container, its diameter being smaller than the diameter of the mounting container. The lower end of the pressure tube has a larger diameter than the upper end. The bottom of the mounting bucket is connected to the upper end of the third connecting tube through the third opening. The lower end of the third connecting tube is inserted below the liquid surface of the detergent bottle. The upper end of the first spring is placed inside the lower end of the pressure tube, and the lower end of the first spring is placed at the bottom of the mounting bucket. The second stop bead is placed inside the mounting bucket and located on the third opening. The diameter of the second stop bead is larger than the diameter of the third opening. An annular flange is formed at the upper edge of the mounting bucket. The cap is formed as an annular ring. The cap is fitted onto the outside of the mounting bucket and located below the flange. The lower part of the inner wall of the cap is provided with a first internal thread, and the upper part is provided with a second internal thread. The pitch of the second internal thread is smaller than the pitch of the first internal thread. The cap mates with the threaded opening on the bottle.

2. The lightweight detergent bottle according to claim 1, characterized in that, A sealing gasket is provided on the top of the screw cap.

3. The lightweight detergent bottle according to claim 1, characterized in that, The sidewalls of the screw cap slope inward at 5-8° from the bottom to the top.

4. The lightweight detergent bottle according to claim 1, characterized in that, The detergent bottle also includes a limiting bracket, which is installed at the bottom of the mounting barrel and is used to limit the upward distance of the second stop bead.

5. The lightweight detergent bottle according to claim 1, characterized in that, The detergent bottle also includes a capping container, which includes a vertically arranged mounting ring post and a horizontally arranged mounting ring. The mounting ring is fitted onto the upper end of the pressure tube and is located inside the mounting container. The mounting ring and the mounting container are interference-fitted, and a second sealing ring is provided between the mounting ring and the flange plate.

6. The lightweight detergent bottle according to claim 5, characterized in that, The detergent bottle also includes a telescopic ring, a fixing ring, and a first sealing ring. The telescopic ring and the fixing ring are both fitted onto the upper end of the pressure tube. The upper end of the telescopic ring is connected to the lower inner end of the cover barrel, and the lower end of the telescopic ring is connected to the upper end of the fixing ring. The first sealing ring is fixedly installed on the inner wall of the fixing ring, and the inner wall of the first sealing ring slides and seals with the upper side wall of the pressure tube.

7. The lightweight detergent bottle according to claim 6, characterized in that, A second spring is embedded inside the telescopic ring column along its axial direction.