Plastic pressing pump head with mistaken pressing prevention function

Abstract

The utility model discloses a plastic pressing pump head with the function of preventing mistaken pressing, which comprises a screwing cap used for being connected with an external container, a pressure pump body is arranged 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 is connected with the pressing pump head. The bottom of the pressure pump body is connected with a liquid suction pipe, the surface of the pressing pump head is fixedly sleeved with an inner cylinder, a table top is arranged above the screwing cap, the surface of the inner cylinder is slidably sleeved with an outer cylinder assembled on the table top, a locking groove set is formed in the surface of the outer cylinder, and a locking assembly is arranged in the locking groove set. And under the action of the locking assembly, the unfolding height between the outer cylinder and the inner cylinder can be positioned. According to the plastic pressing pump head with the mistaken pressing prevention function, mechanical locking of the pressing pump head is achieved through the sliding sleeving structure of the inner cylinder and the outer cylinder, the unique locking groove set and the unique locking assembly.

Description

Technical Field

[0001] This utility model relates to the field of press-type nozzle technology, and in particular to a plastic press-type pump head with anti-accidental pressing function. 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 pump head structure. In practical applications, it has been found that since the press-type pump head can be squeezed out when pressure is applied, leakage is likely to occur when carrying it. Although some existing press-type pump head structures can protect the pump head with a cap, the split-type cap is easy to lose. Therefore, a plastic press-type pump head with an anti-accidental pressing function is proposed. Utility Model Content

[0005] Therefore, it is necessary to address the aforementioned technical problems by providing a plastic pump head with an anti-accidental pressing function. Through a sliding sleeve structure of the inner and outer cylinders, along with a unique locking groove and locking assembly, the pump head achieves mechanical locking. Users can easily switch the sliding block between the vertical guide groove and horizontal guide grooves of different heights by simply rotating the locking assembly, thereby fixing the relative height of the outer and inner cylinders and effectively preventing the pump head from being accidentally pressed down, fundamentally avoiding liquid leakage problems during transportation or carrying. This integrated locking mechanism avoids the disadvantage of easily lost separate dust covers, resulting in higher reliability.

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

[0007] A plastic push-button pump head with anti-accidental pressing function includes a screw cap for connecting to an external container. A pressure pump body is installed inside the screw cap. A pump tube is provided at the top of the pressure pump body. One end of the pump tube passes through the screw cap and is connected to the push-button pump head. A suction tube is connected to the bottom of the pressure pump body. An inner cylinder is fixedly fitted on the surface of the push-button pump head. A platform is provided above the screw cap. An outer cylinder is slidably fitted on the surface of the inner cylinder and mounted on the platform. A locking groove group is provided on the surface of the outer cylinder. A locking component is provided in the locking groove group. The locking component can fix the height of the outer cylinder and the inner cylinder when they are unfolded.

[0008] The horizontal guide groove has an insertion end at one end and a locking end at the other end, and the horizontal guide groove is connected to the vertical guide groove through the insertion end at one end.

[0009] The locking groove group includes vertical guide grooves formed on both sides of the outer cylinder and horizontal guide grooves formed on the surface of the outer cylinder, wherein the horizontal guide grooves are perpendicularly distributed to the vertical guide grooves;

[0010] The locking assembly includes sliding blocks slidably disposed inside the two vertical guide grooves and support rings fixed to the inner sides of the two sliding blocks, wherein the height of the sliding blocks is adapted to the height of the horizontal guide grooves;

[0011] The sliding block is equipped with a locking buckle inside, and the top of the locking buckle is connected to a support spring that is connected to the side wall of the sliding block. The horizontal guide groove is provided with a locking groove that is adapted to the locking buckle.

[0012] Furthermore, the horizontal guide grooves are multiple, and the multiple horizontal guide grooves are distributed at equal intervals along the height direction of the outer cylinder.

[0013] Furthermore, the bottom end of the inner cylinder extends outward to form a sliding portion, and the side wall of the outer cylinder is provided with a sliding groove that matches the sliding portion.

[0014] Furthermore, the outer ends of the two sliding blocks are connected to a push ring, which is sleeved on the surface of the outer cylinder.

[0015] Furthermore, a sliding ring is movably connected to the bottom of the support ring, and a spring connected to the bottom of the sliding ring and the bottom of the outer cylinder is connected to the spring. Under the action of the spring, the inner cylinder can be unfolded in a natural state.

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

[0017] This utility model provides a plastic pump head with anti-accidental pressing function. Through a sliding sleeve structure of the inner and outer cylinders, along with a unique locking groove and locking assembly, the pump head achieves mechanical locking. Users can easily switch the sliding block between the vertical guide groove and horizontal guide grooves of different heights by simply rotating the locking assembly, thereby fixing the relative height of the outer and inner cylinders and effectively preventing the pump head from being accidentally pressed down, fundamentally avoiding liquid leakage problems during transportation or carrying. This integrated locking mechanism avoids the disadvantage of easily lost separate dust covers, resulting in higher reliability.

[0018] By setting multiple horizontal guide slots at different heights, users can rotate or push the locking component to engage the sliding block into different horizontal guide slots. This essentially sets a fixed relative position between the outer and inner cylinders, preventing further downward pressure, thus physically limiting the maximum stroke of the pump head. Therefore, by selecting different settings, users can obtain a predictable liquid output, meeting the adjustment needs of various scenarios from small amounts to standard dosages. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of the plastic pump head with anti-accidental pressing function provided by this utility model;

[0020] Figure 2 A partial structural diagram of the plastic pump head with anti-accidental pressing function provided by this utility model;

[0021] Figure 3 A schematic diagram of the internal structure of the inner cylinder of the plastic push pump head with anti-accidental pressing function provided by this utility model;

[0022] Figure 4 A schematic diagram of the disassembly structure of the plastic push-button pump head with anti-accidental pressing function provided by this utility model;

[0023] Figure 5 A cross-sectional view of the plastic pump head with anti-accidental pressing function provided by this utility model;

[0024] Figure 6 The present invention provides a plastic pump head with anti-accidental pressing function. Figure 5 Enlarged structural diagram at point A in the middle.

[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. Inner cylinder; 21. Sliding part;

[0028] 3. Outer cylinder; 31. Sliding groove;

[0029] 4. Locking groove assembly; 41. Vertical guide groove; 42. Horizontal guide groove;

[0030] 420. Insertion end; 421. Locking end;

[0031] 5. Locking component; 51. Sliding block; 52. Support ring; 53. Push ring; 54. Sliding ring; 55. Spring;

[0032] 510. Locking buckle; 511. Support spring. Detailed Implementation

[0033] 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.

[0034] Example 1

[0035] Please refer to Figures 1-6 As shown, a plastic push-button pump head with anti-accidental pressing function includes a screw cap 1 for connecting to an external container. A pressure pump body 11 is installed inside the screw cap 1. A pump tube 12 is provided on 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 the external push-button pump head 13. A suction tube 14 is connected to the bottom of the pressure pump body 11. An inner cylinder 2 is fixedly fitted on the surface of the push-button pump head 13. A platform 15 is provided above the screw cap 1. An outer cylinder 3 is slidably fitted on the surface of the inner cylinder 2 and mounted on the platform 15. A locking groove group 4 is provided on the surface of the outer cylinder 3. A locking component 5 is provided in the locking groove group 4. The locking component 5 can fix the height of the outer cylinder 3 and the inner cylinder 2.

[0036] In this embodiment, the mechanical locking of the pump head 13 is achieved through the sliding sleeve structure of the inner cylinder 2 and the outer cylinder 3, as well as the unique locking groove group 4 and locking component 5. By simply rotating the locking component 5, the user can switch the sliding block 51 between the vertical guide groove 41 and the horizontal guide grooves 42 at different heights, thereby fixing the relative height between the outer cylinder 3 and the inner cylinder 2. This effectively prevents the pump head 13 from being accidentally pressed down, fundamentally avoiding liquid leakage problems during transportation or carrying. This integrated locking mechanism avoids the disadvantage of easily lost separate dust covers, resulting in higher reliability.

[0037] Example 2

[0038] The plastic pump head with anti-accidental pressing function provided in Embodiment 1 is further optimized, specifically, as follows: Figure 4 As shown, the locking groove group 4 includes vertical guide grooves 41 opened on both sides of the outer cylinder 3 and horizontal guide grooves 42 opened on the surface of the outer cylinder 3. The horizontal guide grooves 42 are perpendicular to the vertical guide grooves 41.

[0039] The horizontal guide groove 42 has an insertion end 420 at one end and a locking end 421 at the other end. The horizontal guide groove 42 is connected to the vertical guide groove 41 through the insertion end 420 at one end.

[0040] The horizontal guide groove 42 has multiple grooves, which are evenly distributed along the height direction of the outer cylinder 3. By setting multiple horizontal guide grooves 42, the locking component 5 can be inserted into the horizontal guide grooves 42 at different heights, which can realize multi-level adjustment of the pressing stroke. In this way, by selecting different gears, users can obtain a predictable liquid output, which meets the adjustment and use needs of various scenarios from small amounts to standard dosages.

[0041] The bottom end of the inner cylinder 2 extends outward to form a sliding part 21. The side wall of the outer cylinder 3 is provided with a sliding groove 31 that is adapted to the sliding part 21. Through the cooperation of the sliding groove 31 and the sliding part 21, the inner cylinder 2 can slide inside the outer cylinder 3 while ensuring that the inner cylinder 2 will not fall off.

[0042] Example 3

[0043] The plastic pump head with anti-accidental pressing function provided in Embodiment 1 or 2 is further optimized, such as... Figure 4 As shown, the locking component 5 includes a sliding block 51 slidably disposed inside the two vertical guide grooves 41 and a support ring 52 fixed to the inner side of the two sliding blocks 51. The height of the sliding block 51 is adapted to the height of the horizontal guide groove 42.

[0044] The outer ends of the two sliding blocks 51 are connected to a push ring 53, which is sleeved on the surface of the outer cylinder 3.

[0045] The bottom of the support ring 52 is movably connected to a sliding ring 54, and the bottom of the sliding ring 54 is connected to a spring 55 that is connected to the bottom wall of the outer cylinder 3. Under the action of the spring 55, the inner cylinder 2 can be unfolded in a natural state.

[0046] The sliding block 51 is provided with a locking buckle 510 inside. The top of the locking buckle 510 is connected to a support spring 511 that is connected to the side wall of the sliding block 51. The horizontal guide groove 42 is provided with a locking groove that is adapted to the locking buckle 510.

[0047] like Figure 1 As shown, at this time, the sliding block 51 slides into the uppermost horizontal guide groove 42, so that the locking buckle 510 engages with the locking groove inside. In this state, when the pump head 13 is pressed, the inner cylinder 2 moves down synchronously. The sliding part 21 at the bottom will be supported by the push support ring 52, which will form an obstruction and prevent it from being pressed down. This ensures the locking effect of the pump head 13 in the carrying state.

[0048] When the rotating push ring 53 aligns the sliding block 51 with the vertical guide groove 41, the push ring 53 can be slid in the height direction to make the sliding block 51 slide to correspond with the bottom horizontal guide groove 42. Then, the push ring 53 is rotated to make the sliding block 51 on it engage in the groove. In this way, the pump head 13 can be pressed in the maximum stroke state to achieve the maximum liquid output.

[0049] The number of horizontal guide grooves 42 located between the top and bottom horizontal guide grooves 42 can be reasonably increased or decreased according to the actual application. When the sliding block 51 is slid into these horizontal guide grooves 42, the liquid output can be reduced from the maximum output, thereby controlling the liquid output and achieving liquid saving in some cases.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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.

[0051] 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 plastic push-button pump head with anti-accidental pressing function, comprising a screw cap (1) for connecting 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 push-button pump head (13) externally, and a suction tube (14) is connected to the bottom of the pressure pump body (11), characterized in that, The inner cylinder (2) is fixedly fitted on the surface of the press pump head (13). The top of the screw cap (1) has a platform (15). An outer cylinder (3) fitted on the platform (15) is slidably fitted on the surface of the inner cylinder (2). A locking groove group (4) is opened on the surface of the outer cylinder (3). A locking component (5) is provided in the locking groove group (4). The locking component (5) can make the height between the outer cylinder (3) and the inner cylinder (2) form a positioning by the height of the expansion. The locking groove group (4) includes vertical guide grooves (41) opened on both sides of the outer cylinder (3) and horizontal guide grooves (42) opened on the surface of the outer cylinder (3), wherein the horizontal guide grooves (42) are perpendicular to the vertical guide grooves (41); The horizontal guide groove (42) has an insertion end (420) at one end and a locking end (421) at the other end. The horizontal guide groove (42) is connected to the vertical guide groove (41) through the insertion end (420) at one end. The locking assembly (5) includes a sliding block (51) slidably disposed inside the two vertical guide grooves (41) and a support ring (52) fixed to the inner side of the two sliding blocks (51). The height of the sliding block (51) is adapted to the height of the horizontal guide groove (42). The sliding block (51) is equipped with a locking buckle (510) inside. The top of the locking buckle (510) is connected to a support spring (511) that is connected to the side wall of the sliding block (51). The horizontal guide groove (42) is provided with a locking groove that is compatible with the locking buckle (510).

2. A plastic push-button pump head with anti-accidental pressing function according to claim 1, characterized in that, The horizontal guide groove (42) is multiple, and the multiple horizontal guide grooves (42) are distributed at equal intervals along the height direction of the outer cylinder (3).

3. A plastic push-button pump head with anti-accidental pressing function according to claim 1, characterized in that, The bottom end of the inner cylinder (2) extends outward to form a sliding part (21), and the side wall of the outer cylinder (3) is provided with a sliding groove (31) that is adapted to the sliding part (21).

4. A plastic push-button pump head with anti-accidental pressing function according to claim 1, characterized in that, The outer ends of the two sliding blocks (51) are connected to a push ring (53), which is sleeved on the surface of the outer cylinder (3).

5. A plastic push-button pump head with anti-accidental pressing function according to claim 1, characterized in that, The bottom of the support ring (52) is movably connected to a sliding ring (54), and the bottom of the sliding ring (54) is connected to a spring (55) connected to the bottom wall of the outer cylinder (3). Under the action of the spring (55), the inner cylinder (2) can be unfolded in a natural state.

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