A squeeze pump

Abstract

The utility model relates to the field of packing bottle especially, and it is a kind of press pump.The press pump includes tooth cover, the lower part of tooth cover is equipped with body, the main column is slidably installed in body, the limit ring is equipped on the main column, the lower part of main column is equipped with mounting seat, the piston is slidably sealedly installed in body, the piston is between limit ring and mounting seat, and the height of piston is less than the distance between limit ring and mounting seat.The press pump provided by the utility model has the advantage that the piston can be moved after a certain kinetic energy is obtained when being pressed downward by a certain distance, and the feeling of pressing liquid can be improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging bottles, and in particular to a press pump. Background Technology

[0002] Currently, most cosmetics and skincare products use pumps in their packaging.

[0003] For example, patent document CN218143215U discloses a push-button pump, including a pump body, a main column assembly, and a sealing structure. The pump body is provided with an installation channel and an inlet that communicates with the bottom of the installation channel. The pump body has an annular slot at the end away from the inlet, and the end of the installation channel away from the inlet is located inside the slot. The main column assembly is vertically and flexibly inserted into the installation channel. The end of the main column assembly away from the inlet has an annular receiving groove with its opening facing the pump body. The outer wall of the receiving groove forms a protective sleeve, which is inserted into the slot. The inner wall of the slot is inserted into the receiving groove.

[0004] For example, patent document CN211224625U discloses a press pump including a press head, a toothed sleeve, a piston rod, and a cylinder. At least one locking head is formed on the outer surface of the piston rod, and the locking head includes an upper support surface and a lower support surface. An inner ring is formed in the toothed sleeve, and the piston rod extends through the inner ring. A support ring is formed on the inner surface of the inner ring, and at least one notch is provided on the support ring, allowing the locking head to slide up and down within the notch.

[0005] However, in the above technology, the main column directly drives the piston movement when it moves, resulting in a poor feel.

[0006] Therefore, a press pump is proposed to solve the above-mentioned technical problems. Utility Model Content

[0007] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a press pump that, after being pressed down a certain distance to generate a certain amount of kinetic energy, pushes the piston to move, which has the advantage of improving the feel of pressing and dispensing liquid.

[0008] The technical solution adopted by this utility model to solve the problem is: a press pump, including: a toothed cover, a body installed on the lower part of the toothed cover, a main column slidably installed in the body, a limiting ring provided on the main column, a mounting seat installed on the lower part of the main column, a piston slidably and sealingly installed in the body, the piston being located between the limiting ring and the mounting seat, a limiting step provided on the mounting seat, and the height of the piston being less than the distance between the limiting ring and the limiting step.

[0009] As a further improvement to the above technical solution, a spring is installed at the lower part of the mounting base, and the bottom end of the spring abuts against the inner wall of the body.

[0010] As a further improvement to the above technical solution, a ball valve is installed at the lower part of the spring.

[0011] As a further improvement to the above technical solution, the main column has a hollow structure, a locking block is provided inside the main column, and a locking rod is provided on the top of the mounting base. The locking rod and the locking block are engaged, and there is a gap between the locking rod and the locking block.

[0012] As a further improvement to the above technical solution, the top of the main column is provided with a pusher, the pusher is provided with an external thread, and the tooth cover is provided with an internal thread, the internal thread being compatible with the external thread.

[0013] The beneficial effect of this utility model is that after pressing down a certain distance to generate a certain kinetic energy, the piston is pushed to move, thereby improving the feel of pressing out liquid. Attached Figure Description

[0014] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the preferred embodiment of the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a cross-sectional view of the present invention after it has been locked.

[0018] In the diagram: 1. Tooth cover; 11. Internal thread; 2. Body; 3. Main column; 31. Limiting ring; 32. Locking block; 4. Piston; 5. Mounting seat; 51. Locking rod; 52. Limiting step; 6. Spring; 7. Ball valve; 8. Push-button; 81. External thread. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figures 1 to 3 A push-button pump includes: a toothed cover 1; a body 2 mounted on the lower part of the toothed cover 1; a main column 3 slidably mounted inside the body 2; a limiting ring 31 provided on the main column 3; a mounting seat 5 mounted on the lower part of the main column 3; and a piston 4 slidably and sealingly mounted inside the body 2, the piston 4 being located between the limiting ring 31 and the mounting seat 5. The mounting seat 5 is provided with a limiting step 52, and the height of the piston 4 ( Figure 2 The value of a) is less than the distance between the limiting ring 31 and the limiting step 52 (i.e., Figure 2 (b value). Preferably, the distance between the limiting ring 31 and the limiting step 52 is 1.2-1.6 times the height of the piston 4.

[0024] When in use, press down on the main column 3. The main column 3 moves down one distance on its own, and then the limiting ring 31 pushes the piston 4 to move down together, which can pump out the material in the body 2. Since the main column 3 has a certain initial kinetic energy when it moves down first, it does not need to provide a large pressing force when driving the piston 4, thus improving the pressing and dispensing feel.

[0025] In a preferred embodiment, a spring 6 is installed on the lower part of the mounting base 5, and the bottom end of the spring 6 abuts against the inner wall of the body 2.

[0026] In a preferred embodiment, a ball valve 7 is mounted on the lower part of the spring 6.

[0027] In a preferred embodiment, the main column 3 has a hollow structure, and a locking block 32 is provided inside the main column 3. A locking rod 51 is provided on the top of the mounting base 5. The locking rod 51 and the locking block 32 are engaged, and a gap is provided between the locking rod 51 and the locking block 32. This gap allows materials to pass through the main column 3.

[0028] In a preferred embodiment, the top of the main column 3 is provided with a push head 8, which has an external thread 81, and the tooth cover 1 has an internal thread 11, which is adapted to the external thread 81. When the push head 8 is pressed down and rotated, the internal thread 11 and the external thread 81 can be screwed together, thereby preventing the push head 8 from springing back. This can lock the pump and prevent accidental dispensing of liquid (e.g., ...). Figure 2 (As shown).

[0029] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A push-button pump, characterized in that, include: A tooth cover (1) is provided, and a body (2) is installed on the lower part of the tooth cover (1). A main column (3) is slidably installed inside the body (2). A limiting ring (31) is provided on the main column (3). A mounting seat (5) is installed on the lower part of the main column (3). A piston (4) is slidably and sealed inside the body (2). The piston (4) is located between the limiting ring (31) and the mounting seat (5). A limiting step (52) is provided on the mounting seat (5), and the height of the piston (4) is less than the distance between the limiting ring (31) and the limiting step (52). A spring (6) is installed on the lower part of the mounting seat (5), and the bottom end of the spring (6) abuts against the inner wall of the body (2).

2. A push pump as described in claim 1, characterized in that: A ball valve (7) is installed at the lower part of the spring (6), and the ball valve (7) is located inside the body (2).

3. A push pump as described in claim 2, characterized in that: The main column (3) has a hollow structure and a locking block (32) is provided inside the main column (3). The top of the mounting base (5) is provided with a locking rod (51). The locking rod (51) and the locking block (32) are engaged, and there is a gap between the locking rod (51) and the locking block (32).

4. A push pump as described in any one of claims 1-3, characterized in that: The top of the main column (3) is provided with a push head (8), the push head (8) is provided with an external thread (81), and the tooth cover (1) is provided with an internal thread (11), the internal thread (11) and the external thread (81) are adapted to each other.

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