Wear-resistant pump head structure

Abstract

The utility model discloses a wear-resisting pump head structure, and particularly relates to the technical field of pump heads, the wear-resisting pump head structure comprises a wear-resisting pump head body, an extension cover and a centering structure, the outer side of the wear-resisting pump head body is fixedly connected with a middle cover used for being connected with a bottle body, one end of the wear-resisting pump head body is connected with a nozzle head, and the other end of the wear-resisting pump head body is connected with a liquid pumping pipe; the extension cover is detachably connected to the outer side of the middle cover; the number of the centering structures is multiple, the centering structures are arranged in the extension cover, and the centering structures are movably connected with the bottle body; threads are arranged on the inner wall of the middle cover, and the middle cover is in threaded connection with the bottle head of the bottle body through the threads; the outer surface of the extension cover is provided with anti-skid lines. An assembly part is arranged on the extension cover and comprises a plastic assembly column and a rubber assembly column; the pump head structure solves the technical problems that an existing pump head structure is not provided with an effective alignment structure so that the pump head structure can be in a parallel state relative to a bottle body, and therefore precision is low and installation is affected when a connecting cover is in threaded butt joint.

Description

Technical Field

[0001] This utility model relates to the field of pump head technology, specifically to a wear-resistant pump head structure. Background Technology

[0002] In the cosmetics, detergent, and plant care products industries, spray pump heads are a very common and extremely useful accessory for liquid containers. They are used to force a high-pressure spray of a mixture of air and liquid from extremely fine orifices by pressing the nozzle. Current pump head structures mainly consist of a pump head body, an outer cap, a nozzle, and a connecting tube.

[0003] For example, patent publication number CN217674316U discloses an anti-accidental pressure spray pump head, belonging to the technical field of spray equipment. It includes a pump head body, a connecting cover, and a pressing valve mounted on the connecting cover. The pump head body is connected to the pressing valve. An adjusting component is rotatably connected to the connecting cover, and the adjusting component abuts against the pump head body. A guide post extends from the connecting cover. A guide port for insertion into the guide post is provided on the pump head body. The adjusting component has several sliding tracks. A sliding protrusion extends from the pump head body at the corresponding position of the sliding track and is slidably connected to the sliding track. A limiting component restricts the rotation angle of the adjusting component. This utility model's anti-accidental pressure spray pump head allows the adjusting component to abut against the valve when rotated, and the position of the sliding track is misaligned with the sliding protrusion, preventing the pressing valve from being pressed during transportation, thus preventing accidental pressing and increasing transportation convenience.

[0004] In the aforementioned patent, the inventor believes that when the patent is used, the pump head structure is mainly connected to the flat end of the bottle body through the thread on the connecting cap. However, during the screwing-in process of the connecting cap thread, there is no effective alignment structure to ensure that the pump head structure is parallel to the bottle body. As a result, the connecting cap has low precision when threaded, which affects the installation. Utility Model Content

[0005] Therefore, this utility model provides a wear-resistant pump head structure to solve the problem in the prior art where the current pump head structure lacks an effective alignment structure to ensure that the pump head structure is parallel to the bottle body, resulting in low precision and installation problems when the connecting cap is threaded together.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A wear-resistant pump head structure, comprising:

[0008] A wear-resistant pump head body, with a middle cap for connecting to a bottle body fixedly connected to the outer side of the wear-resistant pump head body, a nozzle head connected to one end of the wear-resistant pump head body, and a liquid extraction tube connected to the other end of the wear-resistant pump head body;

[0009] An extension cover, which is detachably connected to the outside of the middle cover;

[0010] The centering structure is provided in multiple ways. The centering structure is disposed inside the extension cap and is movably connected to the bottle body.

[0011] Furthermore, the inner wall of the middle cover is provided with threads, and the middle cover is threadedly connected to the bottle head of the bottle body via the threads.

[0012] Furthermore, the outer surface of the extension cover is provided with anti-slip texture.

[0013] Furthermore, the extension cover is provided with an assembly, which includes a plastic assembly post and a rubber assembly post. The plastic assembly post and the rubber assembly post are both fixedly connected to the inner wall of the extension cover, and multiple plastic assembly posts and rubber assembly posts are provided. The outer surface of the middle cover is provided with slots for the plastic assembly post and the rubber assembly post to be inserted, and the number of slots is multiple.

[0014] Furthermore, the centering structure includes a slide block, which is slidably connected inside the extension cover. One end of the slide block is fixedly connected to a positioning post, and the other end of the slide block is provided with a spring.

[0015] Furthermore, the extension cover is provided with a telescopic groove, the slide is slidably connected in the telescopic groove, the spring is provided in the telescopic groove, a linear bearing is fixedly connected to the groove end of the telescopic groove, and the positioning pin is slidably connected to the linear bearing.

[0016] Furthermore, a rolling ball is ball-rotated to one end of the positioning post facing away from the slide block, and the positioning post contacts the bottle body through the rolling ball.

[0017] This utility model has the following advantages:

[0018] 1. The wear-resistant pump head structure of this utility model is provided by setting an extension cover on the outside of the middle cover, and using a positioning post that can slide and elastically connect to the bottle body to abut against the bottle body. By setting multiple positioning posts to provide horizontal fulcrum, the middle cover can achieve a relatively horizontal state at the bottle head position. Because the positioning posts are telescopic, the middle cover can be screwed into the bottle body, thus reducing the installation difficulty and making alignment more convenient.

[0019] 2. The wear-resistant pump head structure of this utility model, by setting plastic assembly columns and rubber assembly columns on the middle cover and the extension cover, allows the extension cover to be easily disassembled on the middle cover, and the assembly allows the extension cover to have a certain tension effect when inserted on the middle cover, so as to reduce the slippage of the insertion. Attached Figure Description

[0020] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0022] Figure 1 A schematic diagram of a wear-resistant pump head structure provided by this utility model;

[0023] Figure 2 Provided for this utility model Figure 1 Schematic diagram of the structure excluding the extension cap;

[0024] Figure 3 A schematic diagram of the structure of the extension cap provided by this utility model;

[0025] Figure 4 A cross-sectional view of the extension cover provided by this utility model.

[0026] In the diagram: 1. Pump head body; 2. Middle cover; 3. Nozzle head; 4. Liquid suction tube; 5. Extension cover; 6. Centering structure; 61. Slide; 62. Positioning post; 63. Spring; 7. Plastic assembly post; 71. Rubber assembly post; 8. Anti-slip texture; 9. Telescopic groove; 10. Linear bearing; 11. Rolling ball; 12. Slot. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] See also Figures 1-4 This utility model provides a wear-resistant pump head structure, including a wear-resistant pump head body 1, an extension cover 5, and a centering structure 6.

[0029] In this embodiment: a middle cap 2 for connecting the bottle body is fixedly connected to the outer side of the wear-resistant pump head body 1, a nozzle head 3 is connected to one end of the wear-resistant pump head body 1, and a liquid extraction tube 4 is connected to the other end of the wear-resistant pump head body 1.

[0030] The wear-resistant pump head body 1 in this application can be made of materials with good wear resistance, such as PP or PE. Since the wear-resistant pump head body 1, middle cover 2, nozzle head 3 and liquid extraction tube 4 are all conventional structures of existing pump head structures, they will not be described in detail here.

[0031] In this embodiment: the inner wall of the middle cover 2 is provided with threads, and the middle cover 2 is connected to the bottle head of the bottle body by the threads.

[0032] The middle cover 2 can serve as a connection between the bottle body and the wear-resistant pump head structure.

[0033] In this embodiment: the extension cover 5 is detachably connected to the outside of the middle cover 2, and the outer surface of the extension cover 5 is provided with anti-slip texture 8.

[0034] The anti-slip texture 8 can increase the protection of the extension cover 5 when it is twisted. The extension cover 5 is intended to extend the diameter of the middle cover 2, which makes it easy to add an auxiliary middle cover 2 connection structure.

[0035] In this embodiment: The extension cover 5 is provided with an assembly, which includes a plastic assembly post 7 and a rubber assembly post 71. The plastic assembly post 7 and the rubber assembly post 71 are both fixedly connected to the inner wall of the extension cover 5, and multiple plastic assembly posts 7 and rubber assembly posts 71 are provided. The outer surface of the middle cover 2 is provided with a slot 12 for inserting the plastic assembly post 7 and the rubber assembly post 71. There are multiple slots 12.

[0036] The plastic assembly column 7 has a rectangular and circular cross-section, with the diameter of the circle being larger than the width of the rectangle. This allows the plastic assembly column 7 to be positioned correctly during insertion. The rubber assembly column 71 has the same shape as the plastic assembly column 7 but is made of a different material. The slot 12 is convenient for positioning the plastic assembly column 7 and the rubber assembly column 71 during insertion. The slot 12 extends downward from the top of the extension cover 5 without penetrating downwards. This allows the extension cover 5 to be inserted into the upper part of the middle cover 2 via the plastic assembly column 7 and the rubber assembly column 71.

[0037] The plastic assembly post 7 and the rubber assembly post 71 are made of different materials. On the one hand, when the extension cover 5 is twisted, the plastic assembly post 7 can improve the support strength with the middle cover 2. On the other hand, when the extension cover 5 is inserted into the middle cover 2, the rubber assembly post 71 made of rubber material can achieve a certain tension effect when inserted into the slot 12, which can effectively prevent the risk of slippage.

[0038] In this embodiment: there are multiple centering structures 6. The centering structures 6 are set inside the extension cover 5 and are movably connected to the bottle body. The centering structure 6 includes a slide 61. The slide 61 is slidably connected inside the extension cover 5. One end of the slide 61 is fixedly connected to a positioning post 62, and the other end of the slide 61 is provided with a spring 63.

[0039] The slide 61 can adopt a hollow structure to reduce the resistance to movement. The sliding of the slide 61 can be used to guide the positioning post 62 in a straight line. The spring 63 can give the positioning post 62 tension to move.

[0040] In this embodiment: the extension cover 5 is provided with a telescopic groove 9, the slide 61 is slidably connected in the telescopic groove 9, the spring 63 is provided in the telescopic groove 9, the groove end of the telescopic groove 9 is fixedly connected to a linear bearing 10, and the positioning post 62 is slidably connected to the linear bearing 10.

[0041] In use, the extension cap 5 is inserted into the middle cap 2, and then multiple positioning pins 62 are aligned with the bottle body near the bottle head. The wear-resistant pump head structure in this application is suitable for bottles with regular shapes. Multiple positioning pins 62 provide fulcrums, so the middle cap 2 can achieve a relatively horizontal effect at the bottle head position. Then, by applying downward pressure and rotational force to the middle cap 2 through the position of the extension cap 5, the middle cap 2 can be quickly aligned with the bottle head thread through the thread. At this time, multiple positioning pins 62 can slide in the telescopic groove 9 through the corresponding slide 61. The spring 63 is in a compressed state, and the positioning pins 62 gradually hide in the extension cap 5, but not completely. In this way, the connection between the wear-resistant pump head structure and the bottle body can be quickly completed with high alignment accuracy.

[0042] The linear bearing 10 can increase the stability of the positioning column 62 as it moves up and down, based on the sliding of the slide block 61.

[0043] In this embodiment, a rolling ball 11 is ball-rotated to one end of the positioning post 62 facing away from the slide block 61, and the positioning post 62 contacts the bottle body through the rolling ball 11.

[0044] The advantage of the rolling ball 11 is that when the positioning post 62 abuts against the bottle body and rotates synchronously with the rotation of the middle cap 2, the rolling ball 11 enhances the rolling effect between the positioning post 62 and the bottle body, thus reducing contact friction.

[0045] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A wear resistant pump head structure, characterized by, Include: Wear-resistant pump head body (1), the outer side of the wear-resistant pump head body (1) is fixedly connected with a middle cover (2) for connecting the bottle body, one end of the wear-resistant pump head body (1) is connected with a nozzle head (3), the other end of the wear-resistant pump head body (1) is connected with a liquid suction pipe (4); Extension cover (5), the extension cover (5) is detachably connected to the outer side of the middle cover (2); Centering structure (6), the number of the centering structure (6) is multiple, the centering structure (6) is arranged in the extension cover (5), and the centering structure (6) is movably connected with the bottle body.

2. A wear-resistant pump head structure according to claim 1, characterized in that The inner wall of the middle cover (2) is provided with threads, and the middle cover (2) is threadedly connected with the bottle head of the bottle body.

3. A wear-resistant pump head structure according to claim 1, characterized in that The outer surface of the extension cover (5) is provided with anti-skid lines (8).

4. A wear-resistant pump head structure according to claim 1, characterized in that The extension cover (5) is provided with a mounting part, the mounting part includes plastic mounting columns (7) and rubber mounting columns (71), the plastic mounting columns (7) and the rubber mounting columns (71) are fixedly connected to the inner wall of the extension cover (5), and the plastic mounting columns (7) and the rubber mounting columns (71) are provided with multiple, the outer surface of the middle cover (2) is provided with a plurality of insertion grooves (12) for inserting the plastic mounting columns (7) and the rubber mounting columns (71).

5. A wear-resistant pump head structure according to claim 1, characterized in that The centering structure (6) includes a sliding seat (61), the sliding seat (61) is slidably connected in the extension cover (5), one end of the sliding seat (61) is fixedly connected with a positioning column (62), and the other end of the sliding seat (61) is provided with a spring (63).

6. A wear-resistant pump head structure according to claim 5, characterized in that The extension cover (5) is provided with a telescopic groove (9), the sliding seat (61) is slidably connected in the telescopic groove (9), the spring (63) is arranged in the telescopic groove (9), and the slot end of the telescopic groove (9) is fixedly connected with a linear bearing (10), and the positioning column (62) is slidably connected on the linear bearing (10).

7. A wear-resistant pump head structure according to claim 5, characterized in that The end of the positioning column (62) away from the sliding seat (61) is ball-jointedly connected with a rolling ball (11), and the positioning column (62) is in contact with the bottle body through the rolling ball (11).

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