Pressing pump with split middle joint and shoulder sleeve

Abstract

The utility model discloses a pressing pump with a split middle section and a split shoulder sleeve, which belongs to the technical field of pressing pumps and comprises the middle section, the shoulder sleeve, a pump core and a head cap, the middle section is of a hollow structure, a large through column is arranged in the middle of the shoulder sleeve, the shoulder sleeve is detachably mounted in the middle section, the pump core is mounted in the large through column of the shoulder sleeve, and the head cap is arranged on the shoulder sleeve. The head cap is installed on the pump core, a clamping protrusion is arranged on the inner wall of the middle section, the outer surface of the clamping protrusion is an arc-shaped face, a clamping groove is formed above the clamping protrusion, a plurality of clamping blocks are arranged on the outer wall of the shoulder sleeve and installed in the clamping groove, and the lower surface of each clamping block is an inclined face. The middle section and the shoulder sleeve are detachably connected, the middle section and the shoulder sleeve can be separated, and in the assembling process, if part of components have flaws, the middle section or the shoulder sleeve with the flaws can be detached and replaced, so that the intact components can be reused.

Description

Technical Field

[0001] The utility model relates to the technical field of compression pumps, in particular to a compression pump with a middle section and a shoulder sleeve separated. Background Art

[0002] In the field of cosmetics, mouthwash and other products, some of them are packaged in containers with press pumps. By pressing the press pump, the product in the container is dispensed.

[0003] For example, the Chinese utility model patent with the announcement number CN219330921U discloses a vacuum bottle using an all-plastic vacuum pump, including a vacuum pump and an outer bottle... The middle section is fixedly arranged in the shoulder sleeve, and the middle section and the shoulder sleeve are fixed together by a snap connection, which is difficult to separate or inseparable. However, after the two are assembled, the parts may have some defects, and the middle section and the shoulder sleeve cannot be reused, which will cause great waste. Utility Model Content

[0004] The utility model aims to solve some problems existing in the prior art. For this reason, the purpose of the utility model is to propose a compression pump with a middle section and a shoulder sleeve separated.

[0005] To achieve the above purpose, the present invention proposes:

[0006] A pressing pump with a middle section and a shoulder sleeve separated, comprising a middle section, a shoulder sleeve, a pump core and a head cap, wherein the middle section is a hollow structure, a large through column is provided at the middle position of the shoulder sleeve, the shoulder sleeve is detachably installed in the middle section, the pump core is installed in the large through column of the shoulder sleeve, the head cap is installed on the pump core, a locking protrusion is provided on the inner wall of the middle section, the outer surface of the locking protrusion is an arc surface, a locking groove is formed above the locking protrusion, a plurality of locking blocks are provided on the outer wall of the shoulder sleeve, the locking blocks are installed in the locking grooves, and the lower surface of the locking blocks is an inclined surface.

[0007] Preferably, a first limiting portion is provided on the inner wall of the middle section, and the first limiting portion is located above the card slot. A second limiting portion is also provided on the outer wall of the shoulder sleeve, and the second limiting portion is located above the card block. The first limiting portion is adapted to the second limiting portion.

[0008] Preferably, a threaded structure is provided on the inner wall of the shoulder sleeve.

[0009] According to some embodiments of the present invention, the top of the head cap is a concave structure, and a first discharge channel connected to the pump core is provided at the middle position of the head cap, and a one-way valve plate is provided in the first discharge channel.

[0010] According to other embodiments of the present invention, the top of the head cap is an arc-shaped structure, and a second discharge channel connected to the pump core is provided inside the head cap.

[0011] Beneficial effects of the utility model:

[0012] The middle section and the shoulder cover of the utility model are detachably connected and can be separated. During assembly, if some parts are defective, the defective middle section or shoulder cover can be disassembled and replaced so that the intact parts can be reused.

[0013] The features and advantages of the present invention will be described in detail through the embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a cross-sectional view of the pressing pump of Example 1 of the present utility model;

[0015] Figure 2 It is a three-dimensional diagram of the section in Example 1 of the present utility model;

[0016] Figure 3 This is a three-dimensional diagram of a shoulder cover according to embodiment 1 of the present invention;

[0017] Figure 4 It is a cross-sectional view of the pressing pump of Example 2 of the present utility model.

[0018] In the picture:

[0019] 1. Middle section, 101. Clamping protrusion, 102. Clamping groove, 103. First limiting portion;

[0020] 2. Shoulder sleeve, 201. Large through column, 202. Block, 203. Second limiting portion;

[0021] 3. Pump core;

[0022] 4. Head cap, 401. First discharge channel, 402. One-way valve plate, 403. Second discharge channel. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of devices consistent with certain aspects of the present application, as detailed in the appended claims.

[0025] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used in this application should have the same ordinary meaning as those understood by persons of ordinary skill in the art to which this invention belongs. The use of "a," "an," and similar terms in this specification and claims does not indicate a limitation of quantity, but rather indicates the presence of at least one. "A plurality" includes two and is equivalent to at least two. "Includes" or "comprising" and similar terms mean that the elements or objects preceding "includes" or "comprising" include the elements or objects listed after "includes" or "comprising," and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and similar terms are not limited to physical or mechanical connections and may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0026] Example 1:

[0027] Please refer to Figure 1-3 A press pump with a middle section 1 and a shoulder sleeve 2 separated, including a middle section 1, a shoulder sleeve 2, a pump core 3 and a head cap 4. The middle section 1 is a hollow structure, a large column 201 is provided at the middle position of the shoulder sleeve 2, the shoulder sleeve 2 is detachably installed in the middle section 1, the pump core 3 is installed in the large column 201 of the shoulder sleeve 2, the head cap 4 is installed on the pump core 3, a card convex 101 is provided on the inner wall of the middle section 1, the outer surface of the card convex 101 is an arc surface, a card groove 102 is formed above the card convex 101, and a plurality of equally spaced card convex 101s are provided on the outer wall of the shoulder sleeve 2. The block 202 is distributed at a distance, and the block 202 is installed in the slot 102. The lower surface of the block 202 is a slope. The design of the arc surface facilitates the block 202 to enter or leave the slot 102. The design of the slope of the lower surface of the block 202 facilitates the block 202 to leave the slot 102. Therefore, under the action of the protrusion 101 and the block 202, when separating the middle section 1 from the shoulder sleeve 2, you only need to press the shoulder sleeve 2 with a little force to squeeze the shoulder sleeve 2 out of the middle section 1, completing the separation of the middle section 1 and the shoulder sleeve 2.

[0028] In this embodiment, the pump core 3 may be a pump core 3 commonly used in the prior art and matching the large through-post 201 .

[0029] In this embodiment, a first limiting portion 103 is further provided on the inner wall of the middle section 1, and the first limiting portion 103 is located above the card slot 102. A second limiting portion 203 is also provided on the outer wall of the shoulder sleeve 2, and the second limiting portion 203 is located above the card block 202. The first limiting portion 103 is adapted to the second limiting portion 203, and both the first limiting portion 103 and the second limiting portion 203 are provided with a plurality of ribs and grooves. The ribs on the first limiting portion 103 can be inserted into the grooves on the second limiting portion 203, and the ribs on the two limiting portions can be inserted into the grooves on the first limiting portion 103. The coordinated use of the first limiting portion 103 and the second limiting portion 203 can be used to circumferentially limit the middle section 1 and the shoulder sleeve 2, thereby preventing the middle section 1 and the shoulder sleeve 2 from rotating relative to each other.

[0030] In this embodiment, a threaded structure is provided on the inner wall of the shoulder sleeve 2 , and the shoulder sleeve 2 (pressing pump) can be connected to the bottle body through the matching threaded structure for use.

[0031] In this embodiment, the top of the head cap 4 is a concave structure, and a first discharge channel 401 connected to the pump core 3 is provided in the middle position of the head cap 4, and a one-way valve plate 402 is provided in the first discharge channel 401.

[0032] Example 2:

[0033] Please refer to Figure 4 The top of the head cap 4 is an arc-shaped structure, and a second discharge channel 403 connected to the pump core 3 is provided inside the head cap 4.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A compression pump with a middle section and a shoulder sleeve separated, comprising a middle section, a shoulder sleeve, a pump core and a head cap, wherein the middle section is a hollow structure, a large through-post is provided at the middle position of the shoulder sleeve, the shoulder sleeve is detachably mounted in the middle section, the pump core is mounted in the large through-post of the shoulder sleeve, and the head cap is mounted on the pump core, characterized in that: A locking protrusion is provided on the inner wall of the middle section, the outer surface of the locking protrusion is an arc-shaped surface, a locking groove is formed above the locking protrusion, and a plurality of locking blocks are provided on the outer wall of the shoulder sleeve. The locking blocks are installed in the locking grooves, and the lower surface of the locking blocks is an inclined surface.

2. The compression pump with a separate middle section and shoulder sleeve according to claim 1, characterized in that: A first limiting portion is also provided on the inner wall of the middle section, and the first limiting portion is located above the card slot. A second limiting portion is also provided on the outer wall of the shoulder sleeve, and the second limiting portion is located above the card block. The first limiting portion is adapted to the second limiting portion.

3. The compression pump with a separate middle section and shoulder sleeve according to claim 2, characterized in that: A thread structure is provided on the inner wall of the shoulder sleeve.

4. The compression pump with a separate middle section and shoulder sleeve according to any one of claims 1 to 3, characterized in that: The top of the head cap is a concave structure, and a first discharge channel connected to the pump core is provided at the middle position of the head cap, and a one-way valve plate is provided in the first discharge channel.

5. The compression pump with a separate middle section and shoulder sleeve according to any one of claims 1 to 3, characterized in that: The top of the head cap is an arc-shaped structure, and a second discharge channel connected to the pump core is provided inside the head cap.

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