Lightweight portable washing and caring bottle
Patent Information
- Application Number
- CN202522416752.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-11-14
AI Technical Summary
[0004]本实用新型的目的是为了解决现有技术中洗护瓶身与盖体之间单一螺纹连接存在易脱离影响使用体验的问题,而提出的一种轻量化便携洗护瓶
[0015] 1. This utility model provides matching external and internal threads in the bottle neck and outer cap, and opens a connecting receiving ring groove, guide cut and piston cavity in the thickened wall and bottle neck. A strong spring provides elastic limit for the active piston and driven piston pin located in the piston cavity, so that the driven piston pin extends and abuts against the internal thread in the normal state, thereby locking and limiting the cap on the bottle body and preventing accidental opening by direct screwing.
Smart Images

Figure CN224767328U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of daily necessities packaging technology, and in particular to a lightweight and portable washing and care bottle. Background Technology
[0002] With the improvement of people's living standards and the increase in travel demand, lightweight and portable toiletries are increasingly favored by consumers. Small bottles combined with push-button pumps enable precise dispensing and avoid waste. However, existing portable toiletries bottles still have significant shortcomings in structural design and safety.
[0003] Existing shampoo and conditioner bottles, such as the one disclosed in CN214383435U (a combination bottle for shampoo and conditioner), include a bottle body with a pair of partitioned cavities, a cap, and a pair of dispensing parts; the cap includes a retaining ring threadedly connected to the opening of the bottle body. Portable shampoo and conditioner bottles, represented by this type, rely solely on a threaded connection between the cap and the bottle body, resulting in a single locking method. During transportation or carrying, the cap is prone to loosening or even detaching due to bumps, collisions, or accidental pressure, leading to leakage of the contents. This not only causes waste and contamination but also seriously affects the user experience. Utility Model Content
[0004] The purpose of this invention is to solve the problem that the single threaded connection between the body and cap of the shampoo bottle in the prior art is prone to detachment and affects the user experience, and to propose a lightweight and portable shampoo bottle.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A lightweight portable shampoo and conditioner bottle includes a bottle body and a cap with a pump head. The bottle body is composed of a main body, a thickened wall and a neck. The cap is composed of an outer cap and an inner extension tube. The neck and the outer cap are respectively provided with matching external threads and internal threads. The bottle body is provided with an anti-detachment mechanism to prevent the cap from being accidentally opened through the thickened wall and the neck.
[0007] Preferably, the main body, the thickened wall, and the bottleneck are connected sequentially from bottom to top.
[0008] Preferably, the upper and lower ports of the outer cover are interconnected, and the inner extension tube is fixedly connected to the upper end of the outer cover.
[0009] Preferably, the inner extension tube has a funnel-shaped structure that is thicker at the top and thinner at the bottom, and the inner extension tube extends vertically into the bottleneck.
[0010] Preferably, the pump head is disposed in the cap body through an inner extension tube and extends movably into the bottle body.
[0011] Preferably, the anti-detachment mechanism includes a receiving ring groove and a guide cut in the thickened wall, a piston cavity communicating with the guide cut in the bottleneck, a strong spring fixedly installed in the receiving ring groove, a lifting cover fixedly connected to the strong spring, an active piston component slidably fitted in the guide cut and the lower port of the piston cavity fixedly connected to the lifting cover, and a driven piston component pin with a corresponding internal thread slidably fitted in the upper port of the piston cavity.
[0012] Preferably, the receiving ring groove is located on the outer side of the thickened wall, the guide cut is located in the thickened wall, and there are 2-4 guide cuts and piston channels, with each guide cut corresponding to a piston channel.
[0013] Preferably, the driven piston pin has a corresponding internal threaded slot at one end extending to the outside of the piston cavity.
[0014] Compared with the prior art, the present invention has the following advantages:
[0015] 1. This utility model provides matching external and internal threads in the bottle neck and outer cap, and opens a connecting receiving ring groove, guide cut and piston cavity in the thickened wall and bottle neck. A strong spring provides elastic limit for the active piston and driven piston pin located in the piston cavity, so that the driven piston pin extends and abuts against the internal thread in the normal state, thereby locking and limiting the cap on the bottle body and preventing accidental opening by direct screwing.
[0016] 2. This utility model uses a lifting cover that is integrally connected to the bottle body as a switch to open the anti-detachment mechanism, which helps to hide and protect the anti-detachment mechanism from accidental activation.
[0017] 3. This utility model utilizes the main body, thickened wall and neck to form the bottle body, and the outer cap and inner extension tube to form the cap body. The inner extension tube is equipped with a pump head that extends into the bottle body, so that the bottle body can realize dual channels. Under normal circumstances, only a small amount of washing and care liquid is obtained through the pump head. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a lightweight portable shampoo and conditioner bottle proposed in this utility model;
[0019] Figure 2 This is a bottom view of a lightweight portable shampoo and conditioner bottle proposed in this utility model;
[0020] Figure 3 This is a right sectional view of a lightweight portable shampoo and conditioner bottle proposed in this utility model;
[0021] Figure 4 This is a left sectional view of a lightweight portable shampoo and conditioner bottle proposed in this utility model;
[0022] Figure 5 This is an enlarged schematic diagram of part A of a lightweight portable shampoo bottle proposed in this utility model.
[0023] In the diagram: 1. Bottle body; 11. Main body; 12. Thickened wall; 13. Bottle neck; 2. Cap; 21. Outer cap; 22. Inner extension tube; 3. Pump head; 4. Anti-detachment mechanism; 41. Storage ring groove; 42. Guide cut; 43. Piston cavity; 44. Strong spring; 45. Lifting cover; 46. Active piston component; 47. Driven piston component pin. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] Reference Figures 1-5 A lightweight, portable shampoo and conditioner bottle includes a bottle body 1 and a cap 2 with a pump head 3 installed. The bottle body 1 consists of a main body 11, a thickened wall 12, and a neck 13. The cap 2 consists of an outer cap 21 and an inner extension tube 22. The neck 13 and the outer cap 21 are respectively provided with matching external and internal threads. It is worth noting that the pump head 3 extends into the bottle body 1 through the cap 2. By pressing the pump head 3, a small amount of shampoo and conditioner solution can be obtained, thereby reducing waste and leakage pollution. This is a mature technical method in this field and will not be described in detail.
[0026] The core issue is:
[0027] The bottle body 1 is equipped with an anti-detachment mechanism 4 through the thickened wall 12 and the neck 13 to prevent the cap 2 from being accidentally opened. The anti-detachment mechanism 4 includes a receiving ring groove 41 and a guide cut 42 formed in the thickened wall 12. A piston cavity 43 connected to the guide cut 42 is formed in the neck 13. A strong spring 44 is fixedly installed in the receiving ring groove 41. A lifting cover 45 is fixedly connected to the strong spring 44. The lifting cover 45 adopts the same color or texture structure as the main body 11 or the outer cover 21 to achieve a concealment effect, thereby further enhancing the anti-theft function. An active piston 46 is fixedly connected to the lifting cover 45 and is slidably fitted in the guide cut 42 and the lower port of the piston cavity 43. A driven piston pin 47 with a corresponding internal thread is slidably fitted in the upper port of the piston cavity 43. The piston cavity 43 is filled with an appropriate amount of stagnant liquid or liquid located between the active piston 46 and the driven piston pin 47 to avoid traction errors caused by direct use of gas, thereby improving the synchronization of movement between the two.
[0028] The lifting cover 45, which is integrated with the bottle body 1, is used as the unlocking switch. The operation is simple: press and then twist. The switch structure is concealed with no exposed parts, which is both aesthetically pleasing and effectively prevents accidental unlocking.
[0029] It should be noted that the shampoo and conditioner bottle has two usage modes:
[0030] Firstly, the liquid can be dispensed by pressing the button as usual (in the safety lock state), as per the instruction manual. Figure 1 and attached Figure 2 As shown, when storing shampoo normally or when a small amount needs to be used, the cap 2 is tightly screwed into the external thread of the neck 13 via the internal thread of the outer cap 21. At this time, the anti-hair loss mechanism 4 is in its normal state. In this state:
[0031] The powerful spring 44 inside the storage ring groove 41 is in a naturally extended or slightly compressed state, providing upward support for the lifting cover 45 that is integrally connected to it.
[0032] The lifting cover 45 drives the active piston 46 to remain at the lower part of the guide cut 42 and piston cavity 43. This position allows the driven piston pin 47, which is linked to the active piston 46, to extend outward from the upper port of the piston cavity 43 under the elastic force of the strong spring 44.
[0033] As per the instruction manual Figure 4 and attached Figure 5 As shown, the extended driven piston pin 47 has a latch at its end that precisely engages with and abuts against the toothed groove of the internal thread of the outer cover 21. At this time, if the user or the luggage is subjected to external force and attempts to directly rotate and open the outer cover 21, the driven piston pin 47 will act as a mechanical pin, blocking the rotation of the internal thread, thereby effectively preventing the cover 21 from being accidentally opened and ensuring the safety and sealing of the contents.
[0034] Secondly, the cap needs to be fully opened for replenishment (active unlocking state). When the user needs to use a large amount of shampoo or needs to replenish the bottle with conditioner, the cap 2 needs to be opened. However, directly twisting the outer cap 2 will result in it not turning properly because the driven piston pin 47 has a locking and limiting function on the internal thread. Only by first pressing down the lifting cover 45, the pressing action overcomes the elastic force of the strong spring 44 and causes it to retract. The downward movement of the lifting cover 45 drives the active piston 46 fixed on it to slide down along the guide cut 42. Since the active piston 46 and the driven piston pin 47 are linked in the piston cavity 43, in some embodiments, the active piston 46 and the driven piston pin 47 can be mechanically engaged by a ramp, connecting rod, or direct push, causing the downward movement of the active piston 46 to pull the driven piston pin 47 into the piston cavity 43. When the driven piston pin 47 is fully retracted until the latch at its end disengages from the internal thread, the rotation restriction of the outer cap 21 is released. In this state, the user can screw the outer cap 21 normally to separate the internal thread from the external thread, thereby removing the entire cap 2 from the bottle body 1 for filling or bulk use.
[0035] It is worth noting that throughout the entire usage cycle, the pump head 3 always extends into the bottle body 1 through the inner extension tube 22. The funnel-shaped design of the inner extension tube 22 helps guide the collection of the shampoo and conditioner liquid, ensuring that the pump head 3 can efficiently draw in liquid. This enables the bottle body 1 to achieve a dual-channel function: small amounts of liquid can be obtained through the pump head 3 for daily use, which is convenient and hygienic; the cap body 2 can only be fully opened through the unlocking operation when there is a special need, improving the flexibility of use and the sealing security of the product.
[0036] By integrating the anti-detachment mechanism 4 into the thickened wall 12 and neck 13 structure of the bottle body 1, and using the lifting cover 45 integrated with the bottle body 1 as a trigger switch, not only is an effective anti-accidental opening function achieved, but also the overall integrity and aesthetics of the appearance are guaranteed.
[0037] The main body 11, the thickened wall 12, and the bottleneck 13 are connected sequentially from bottom to top.
[0038] The upper and lower ends of the outer cap 21 are interconnected, and the inner extension tube 22 is fixedly connected to the upper end of the outer cap 21. During the process of screwing the outer cap 21, the inner extension tube 22 extends synchronously into the bottle neck 13, further driving the pump head 3 into the bottle body 1.
[0039] The inner extension tube 22 has a funnel-shaped structure that is thicker at the top and thinner at the bottom, and the inner extension tube 22 extends vertically into the bottleneck 13.
[0040] The pump head 3 is installed in the cap 2 through the inner extension tube 22 and extends movably into the bottle 1.
[0041] The receiving annular groove 41 is located on the outer side of the thickened wall 12, and the guide cut 42 is located in the thickened wall 12. There are 2-4 guide cuts 42 and piston cavity 43, and the guide cuts 42 and piston cavity 43 correspond one-to-one. In some embodiments, the 2-4 guide cuts 42 and piston cavity 43 are circumferentially equidistantly distributed, but they are staggered in height according to the internal thread to facilitate locking and limiting the internal thread from multiple directions.
[0042] The driven piston pin 47 extends movably to the outside of the piston cavity 43 and has a corresponding internal thread in the end, which improves the stability of the connection between the driven piston pin 47 and the internal thread.
[0043] It should be noted that the specific model and specifications of the pump head 3 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be elaborated here.
[0044] The functional principle of this utility model can be explained through the following operation methods:
[0045] When it is necessary to fully open the bottle body 1, press down on the lifting cover 45 to cause the strong spring 44 to contract. The lifting cover 45 drives the active piston 46 to move from the piston cavity 43 to the guide cut 42, which in turn pulls the driven piston pin 47 to contract into the piston cavity 43, stopping the locking limit of the internal thread.
[0046] Tighten the outer cap 21 on the neck 13 until the internal thread is completely disengaged from the external thread in order to remove the cap 2 from the bottle body 1.
[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A lightweight portable shampoo and conditioner bottle, comprising a bottle body (1) and a cap (2) on which a pump head (3) is mounted, characterized in that, The bottle body (1) is composed of a main body (11), a thickened wall (12) and a neck (13). The cap (2) is composed of an outer cap (21) and an inner extension tube (22). The neck (13) and the outer cap (21) are respectively provided with matching external threads and internal threads. The bottle body (1) is provided with an anti-detachment mechanism (4) to prevent the cap (2) from being accidentally opened through the thickened wall (12) and the neck (13).
2. The light-weight portable washing and caring bottle according to claim 1, characterized in that, The main body (11), the thickened wall (12), and the bottleneck (13) are connected sequentially from bottom to top.
3. The light-weight portable washing and caring bottle according to claim 2, characterized in that, The upper and lower ports of the outer cover (21) are interconnected, and the inner extension tube (22) is fixedly connected to the upper end of the outer cover (21).
4. The light-weight portable washing and caring bottle according to claim 3, characterized in that, The inner extension tube (22) is a funnel-shaped structure that is thicker at the top and thinner at the bottom, and the inner extension tube (22) extends vertically into the bottleneck (13).
5. The light-weight portable washing and caring bottle according to claim 4, characterized in that, The pump head (3) is installed in the cap (2) through the inner extension tube (22) and extends movably into the bottle (1).
6. The light-weight portable washing and caring bottle according to claim 5, characterized in that, The anti-detachment mechanism (4) includes a receiving ring groove (41) and a guide cut (42) opened in the thickened wall (12). A piston cavity (43) communicating with the guide cut (42) is opened in the bottleneck (13). A strong spring (44) is fixedly installed in the receiving ring groove (41). A lifting cover (45) is fixedly connected to the strong spring (44). An active piston (46) is fixedly connected to the lifting cover (45) and is slidably fitted in the guide cut (42) and the lower port of the piston cavity (43). A driven piston pin (47) with a corresponding internal thread is slidably fitted in the upper port of the piston cavity (43).
7. The light-weight portable washing and caring bottle according to claim 6, characterized in that, The receiving ring groove (41) is located outside the thickened wall (12), and the guide cut (42) is located in the thickened wall (12). The number of guide cuts (42) and piston channels (43) are both 2-4, and the guide cuts (42) and piston channels (43) correspond one-to-one.
8. The light-weight portable washing and caring bottle according to claim 7, characterized in that, The driven piston pin (47) extends movably to one end outside the piston cavity (43) and has a corresponding internal threaded slot.
Citation Information
Patent Citations
Combined bottle for shampoo and hair care liquid
CN214383435U