Dose-adjustable pressing spray head

Abstract

The utility model discloses a dose-adjustable pressing sprayer which comprises a screwing cap used for being connected with an external container, a pressure pump body is installed in the screwing cap, a pump pipe is arranged at the top of the pressure pump body, one end of the pump pipe penetrates through the screwing cap and is externally connected with a pressing pump head, and the other end of the pump pipe penetrates through the pressing pump head. The bottom of the pressure pump body is connected with a liquid suction pipe, and the pressure pump is characterized in that the screwing cap is provided with a table top used for installing an elastic telescopic piece. According to the pressing spray head with the adjustable dosage, the quantitative parts with different heights on the trapezoidal quantitative unit are matched with the positioning head on the elastic telescopic piece, so that a user can select different pressing gears by rotating the pressing pump head. And each quantitative part corresponds to a specific pressing stroke, so that the single-time liquid outlet amount is accurately controlled. By means of the design, the dosage requirement from trace use (such as perfume) to large use (such as shower gel) can be met, and waste or complexity of repeated pressing is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of press-type nozzle technology, and in particular to a press-type nozzle with adjustable dosage. Background Technology

[0002] A push-button pump head, also known as a push-button spray head, is a mechanical device that draws and sprays liquid through a pressing operation. It is widely used in the packaging of everyday products such as skincare products, shampoos, and shower gels. Its core principle is based on air pressure difference: when the user presses the pump head, the internal piston moves downward to expel air; after releasing, a negative pressure is created inside the bottle, drawing liquid from the tube into the pump chamber, and the liquid is expelled when pressed again.

[0003] For example, Chinese utility model patent CN201220167637.6 discloses a controllable flow bottle cap pump head, which includes a push-button pump head, a pump tube, a bottle mouth connector and a pressure pump. One end of the pump tube is connected to the pressure pump, and the other end is connected to the push-button pump head and communicates with its liquid outlet. In actual application, the push-button pump head drives the pump tube to work, so that the bottom of the pressure pump can draw out the liquid inside the bottle and input it into the push-button pump head.

[0004] The above describes the conventional press-type nozzle structure. In practical applications, it has been found that since the press-type pump head has a fixed downward stroke (i.e., the maximum spray volume), the amount of liquid sprayed cannot be reasonably adjusted in different application scenarios. This can easily lead to excessive liquid spraying in some cases, affecting usability or causing waste. Therefore, a press-type nozzle with adjustable dosage is proposed. Utility Model Content

[0005] Therefore, it is necessary to address the aforementioned technical problems by providing a press-type nozzle with adjustable dosage. Through the cooperation of the different heights of the metering sections on the trapezoidal metering unit and the positioning head on the elastic telescopic component, users can select different pressing levels by rotating the pump head. Each metering section corresponds to a specific pressing stroke, thereby precisely controlling the amount of liquid dispensed per application. This design allows for the satisfaction of dosage requirements ranging from micro-use (such as perfume) to large-use (such as shower gel), effectively avoiding waste or the inconvenience of multiple presses.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An adjustable-dose press-type nozzle includes a screw cap for connection to an external container, a pressure pump body installed inside the screw cap, a pump tube at the top of the pressure pump body, a press-type pump head connected to the outside through the screw cap at one end of the pump tube, and a suction tube connected to the bottom of the pressure pump body. The nozzle is characterized in that the screw cap has a platform for mounting an elastic telescopic component, a positioning head is fixed at the top of the elastic telescopic component, and a trapezoidal metering unit corresponding to the positioning head is fixed below the press-type pump head.

[0008] The trapezoidal metering unit includes a trapezoidal block having a head and a tail that are sequentially distributed in its height direction, and at least one metering part is provided between the head and the tail.

[0009] Furthermore, the top of the positioning head has a trapezoidal locking part, and the surfaces of the head, tail and metering part all have trapezoidal locking grooves that are adapted to the trapezoidal locking part.

[0010] Furthermore, the quantitative part has multiple parts, and the multiple quantitative parts are orderly distributed on the trapezoidal block.

[0011] Furthermore, there are multiple elastic telescopic members, which are arranged in a ring on the table surface.

[0012] Furthermore, a ring body is connected to the plurality of trapezoidal metering units, and the ring body is fixed below the press pump head.

[0013] Furthermore, the elastic telescopic member includes an outer cylinder and an inner rod that are slidably assembled with each other, and the top end of the inner rod is connected to a spring that is connected to the top wall of the outer cylinder.

[0014] Furthermore, the bottom end of the inner rod extends through the outside of the outer cylinder and connects to the platform, while the positioning head is fixed to the top of the outer cylinder.

[0015] Furthermore, the outer cylinder surfaces of the multiple elastic telescopic members are all connected to a pressing ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention provides a dose-adjustable press-type nozzle. Through the cooperation of different height metering sections on a trapezoidal metering unit and a positioning head on an elastic telescopic component, users can select different pressing levels by rotating the pump head. Each metering section corresponds to a specific pressing stroke, thereby precisely controlling the amount of liquid dispensed per application. This design satisfies dosage requirements ranging from micro-use (such as perfume) to large-use (such as shower gel), effectively avoiding waste or the inconvenience of multiple presses.

[0018] The stepped metering section on the trapezoidal block and the spring return mechanism of the elastic telescopic component provide clear feedback for each setting, allowing users to feel a distinct "click" during adjustment, making operation intuitive and easy to understand. Multiple ring-shaped elastic telescopic components ensure stability during the pressing process, preventing nozzle wobbling and improving user comfort and reliability. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of the dose-adjustable press-type nozzle provided by this utility model;

[0020] Figure 2 A schematic diagram of the second form of the dose-adjustable press nozzle provided by this utility model;

[0021] Figure 3 A schematic diagram of the elastic telescopic component structure of the dose-adjustable press nozzle provided by this utility model;

[0022] Figure 4 A schematic diagram of the trapezoidal metering unit structure of the dose-adjustable press nozzle provided by this utility model;

[0023] Figure 5 A cross-sectional view of the elastic telescopic component of the dose-adjustable press nozzle provided by this utility model;

[0024] Figure 6 A schematic diagram of the pressing ring structure of the dose-adjustable press nozzle provided by this utility model.

[0025] The markings in the diagram are explained as follows:

[0026] 1. Screw-on cap; 11. Pressure pump body; 12. Pump pipe; 13. Press pump head; 14. Suction pipe; 15. Tabletop;

[0027] 2. Elastic telescopic component; 21. Positioning head; 22. Inner rod; 23. Spring; 24. Pressing ring; 25. Outer cylinder;

[0028] 210. Trapezoidal locking part;

[0029] 3. Trapezoidal quantitative unit; 31. Head; 32. Tail; 33. Quantitative part; 34. Trapezoidal locking groove; 35. Trapezoidal block; 36. Ring body. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0031] Example 1

[0032] Please refer to Figures 1-6 An adjustable-dose press-type nozzle includes a screw cap 1 for connection to an external container, a pressure pump body 11 installed inside the screw cap 1, a pump tube 12 provided at the top of the pressure pump body 11, a press-type pump head 13 connected to the outside through the screw cap 1 at one end of the pump tube 12, and a suction tube 14 connected to the bottom of the pressure pump body 11. The nozzle is characterized in that the screw cap 1 has a platform 15 for mounting an elastic telescopic member 2, a positioning head 21 fixed at the top of the elastic telescopic member 2, and a trapezoidal metering unit 3 corresponding to the positioning head 21 fixed below the press-type pump head 13.

[0033] The trapezoidal quantitative unit 3 includes a trapezoidal block 35, which has a head 31 and a tail 32 distributed sequentially in the height direction, and at least one quantitative part 33 is provided between the head 31 and the tail 32.

[0034] In practical applications, screw the cap 1 onto the surface of the container bottle opening, insert the suction tube 14 into the bottom of the liquid in the container bottle, rotate and press the pump head 13 to drive the trapezoidal metering unit 3 to rotate until the trapezoidal locking part 210 of the positioning head 21 is engaged in the trapezoidal locking groove 34 of the target metering part 33, accompanied by a "click" sound as a gear confirmation signal.

[0035] Pressing down vertically on the pump head 13, the trapezoidal metering unit 3 contacts the positioning head 21 and continues to press down until the elastic telescopic member 2 can no longer extend or retract at this position, thus completing one press. The pressure pump body 11 outputs liquid according to the preset stroke. After releasing, the elastic telescopic member 2 automatically resets. It should be noted that the structure and principle involved in pressing down on the pump head 13 to drive the pump tube 12 to drive the pressure pump body 11 to output liquid are all technical common knowledge well known to those skilled in the art, so no further elaboration is required in this embodiment.

[0036] In this embodiment, the different heights of the metering sections 33 on the trapezoidal metering unit 3 cooperate with the positioning head 21 on the elastic telescopic member 2, allowing the user to select different pressing levels by rotating the pump head 13. Each metering section 33 corresponds to a specific pressing stroke, thereby precisely controlling the amount of liquid dispensed per application. This design allows for the satisfaction of dosage requirements ranging from trace amounts (such as perfume) to large amounts (such as shower gel), effectively avoiding waste or the inconvenience of multiple presses.

[0037] Example 2

[0038] The dosage-adjustable press-type nozzle provided in Example 1 has been further optimized, specifically, as follows: Figure 4 As shown, the top of the positioning head 21 has a trapezoidal locking part 210, and the surfaces of the head part 31, tail part 32 and quantitative part 33 all have trapezoidal locking grooves 34 that are adapted to the trapezoidal locking part 210.

[0039] The quantitative part 33 has multiple parts, and the multiple quantitative parts 33 are orderly distributed on the trapezoidal block 35.

[0040] The elastic telescopic member 2 is a plurality of such members, which are arranged in a ring on the platform 15.

[0041] like Figure 5 As shown, the stepped metering section 33 on the trapezoidal block 35 and the spring reset mechanism of the elastic telescopic component 2 form clear gear feedback, allowing the user to feel a distinct "click" during adjustment, making the operation intuitive and easy to understand. Multiple ring-shaped elastic telescopic components ensure the stability of the pressing process, preventing the pump head 13 from shaking and improving user comfort and reliability.

[0042] Example 3

[0043] Further optimizations were made to the dose-adjustable press-type nozzle provided in Example 1 or 2, such as... Figures 1-6 As shown, a ring 36 is connected to the multiple trapezoidal metering units 3, and the ring 36 is fixed below the press pump head 13.

[0044] like Figure 5 The elastic telescopic member 2 shown includes an outer cylinder 25 and an inner rod 22 that are slidably assembled with each other. The top end of the inner rod 22 is connected to a spring 23 that is connected to the top wall of the outer cylinder 25.

[0045] The bottom end of the inner rod 22 passes through the outside of the outer cylinder 25 and is connected to the platform 15, and the positioning head 21 is fixed to the top of the outer cylinder 25.

[0046] Through the force of spring 23, the outer cylinder 25 and the inner rod 22 can be relatively unfolded in their natural state, such as... Figure 1As shown, the outer cylinder 25 and inner rod 22 are in a retracted state at this time, and cannot form a further retraction effect. At this time, the pump head 13 is locked, preventing it from pressing down further, thus facilitating its carrying and application. At this time, the trapezoidal locking part 210 is engaged in the trapezoidal locking groove 34 on the corresponding head 31.

[0047] like Figure 2 As shown, the position of the trapezoidal locking part 210 is adjusted by rotating the pump head 13, so that it engages with the metering part 33. At this time, the outer cylinder 25 and the inner rod 22 are in a partially unfolded state. When liquid needs to be dispensed, the pump body 13 is pressed to move it down, causing the partially unfolded outer cylinder 25 and the inner rod 22 to contract and dispense liquid. Specifically, the corresponding downward stroke can be adjusted by adjusting different metering parts 33, thereby adjusting the amount of solution.

[0048] like Figure 6 As shown, furthermore, the outer cylinders 25 of the multiple elastic telescopic members 2 are connected to a common pressing ring 24. The pressing ring 24 can drive the multiple outer cylinders 25 synchronously. In this way, when it is necessary to adjust the corresponding position of the positioning head 21 and the upper trapezoidal quantitative unit 3, the multiple adjusting positioning heads 21 can be moved down synchronously, which facilitates quick alignment adjustment.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A dose-adjustable press-type nozzle, comprising a screw cap (1) for connection to an external container, wherein a pressure pump body (11) is installed inside the screw cap (1), a pump tube (12) is provided at the top of the pressure pump body (11), one end of the pump tube (12) passes through the screw cap (1) and is connected to a press-type pump head (13) externally, and a suction tube (14) is connected to the bottom of the pressure pump body (11), characterized in that, The screw cap (1) has a platform (15) for installing the elastic telescopic component (2). The top of the elastic telescopic component (2) is fixed with a positioning head (21). The bottom of the press pump head (13) is fixed with a trapezoidal metering unit (3) corresponding to the positioning head (21). The trapezoidal quantitative unit (3) includes a trapezoidal block (35), which has a head (31) and a tail (32) distributed sequentially in the height direction, and at least one quantitative part (33) is provided between the head (31) and the tail (32).

2. A dose adjustable pressurised dispenser according to claim 1, wherein, The top of the positioning head (21) has a trapezoidal locking part (210), and the surfaces of the head (31), tail (32) and metering part (33) all have trapezoidal locking grooves (34) that are adapted to the trapezoidal locking part (210).

3. A dose adjustable squeeze trigger sprayer as defined in claim 1, wherein, The quantitative section (33) has multiple parts, and the head (31), quantitative section (33) and tail (32) are connected by a stepped surface.

4. A dose adjustable squeeze dispenser according to claim 1, wherein, The elastic telescopic member (2) is multiple, and the multiple elastic telescopic members (2) are distributed in a ring on the table surface (15).

5. A dose adjustable squeeze dispenser according to claim 4, wherein, A ring (36) is connected between multiple trapezoidal metering units (3), and the ring (36) is fixed below the press pump head (13).

6. The dosage-adjustable press-type nozzle according to claim 4, characterized in that, The elastic telescopic component (2) includes an outer cylinder (25) and an inner rod (22) that slide against each other, and the top end of the inner rod (22) is connected to a spring (23) that is connected to the top wall of the outer cylinder (25).

7. A dose adjustable squeeze dispenser according to claim 6, wherein, The bottom end of the inner rod (22) passes through the outside of the outer cylinder (25) and is connected to the platform (15), and the positioning head (21) is fixed to the top of the outer cylinder (25).

8. A dose adjustable squeeze dispenser according to claim 1, wherein, The outer cylinder (25) surfaces of the multiple elastic telescopic members (2) are connected to a common pressing ring (24).

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