Pressing pump

Abstract

The pressing pump comprises a body, a pump head assembly and a threaded cover, a containing cavity with an opening in the upper end is formed in the middle of the body, the pump head assembly is movably connected in the containing cavity, the threaded cover is arranged on the periphery of the body in a sleeved mode, a connecting disc is arranged on the periphery of the body, a groove is formed in the upper side face of the connecting disc, and an annular part is arranged on the inner side of the threaded cover. A convex rib is arranged on the lower side face of the annular part, the annular part is located above the connecting disc, and the convex rib is inserted into the groove. The connecting disc is arranged on the periphery of the body, the annular part is arranged on the inner side of the thread cover, the groove is formed in the upper side face of the connecting disc, the convex rib is arranged on the lower side face of the annular part, and the convex rib is inserted into the groove, so that relative rotation of the body and the thread cover is limited, and after the thread cover is fixedly connected with a bottle body, the body and the thread cover are relatively fixed; and the problem of synchronous rotation of the body and the pump head assembly is avoided.

Description

Technical Field

[0001] The utility model relates to a pressing pump. Background Art

[0002] A press pump generally includes a main body, a pump head assembly and a screw cover. The pump head assembly also includes a press head. The screw cover is relatively fixed on the main body and is used to be fixedly connected to the external bottle body. A accommodating cavity with an upper opening is provided in the middle of the main body. The pump head assembly is inserted into the accommodating cavity through the opening and moves up and down in the accommodating cavity.

[0003] The press pump generally has a locked state and an unlocked state. An internal thread is provided on the inner wall of the accommodating chamber, and an external thread is provided on the outer wall of the pump head assembly. In the locked state, the internal thread is threadedly connected to the external thread. When unlocked, by rotating the pump head assembly, the pump head assembly and the body rotate relative to each other, the external thread disengages from the internal thread, and the pump head assembly rises as a whole, thereby converting to an unlocked (open) state.

[0004] However, in the existing press pump, there is no fixed structure between the screw cover and the body to limit the rotation. When the pump head assembly is rotated, the body and the pump head assembly rotate synchronously, making it difficult to convert the press pump into an unlocked state.

[0005] Therefore, there is an urgent need for a compression pump that can limit the synchronous rotation of the pump head assembly and the body. Utility Model Content

[0006] In order to solve the above technical problems, the purpose of the present utility model is to provide a pressing pump that can limit the synchronous rotation of the pump head assembly and the body.

[0007] The technical solution adopted by the present invention to solve the problem is: a pressing pump, including a body, a pump head assembly and a screw cover, the middle part of the body is provided with a accommodating cavity with an upper end opening, the pump head assembly is movably connected in the accommodating cavity, the screw cover is sleeved on the outer periphery of the body, the outer periphery of the body is provided with a connecting disk, the upper side surface of the connecting disk is provided with a groove, the inner side of the screw cover is provided with an annular portion, the lower side surface of the annular portion is provided with a rib, the annular portion is located above the connecting disk, and the rib is inserted into the groove.

[0008] As a further improvement of the above technical solution, an annular recess is provided on the upper side of the connecting plate, and a number of spaced groove ribs are provided in the annular recess, and the groove is formed between two adjacent groove ribs; the number of the convex ribs is several and is distributed in an annular shape on the lower side of the annular portion.

[0009] As a further improvement of the above technical solution, the groove is arc-shaped and has a certain length, the number of the ribs is twice the number of the grooves, two ribs are inserted in each groove, and the two ribs in the groove respectively abut against the two groove ribs of the groove.

[0010] As a further improvement of the above technical solution, a limiting portion is provided on the outer periphery of the main body, the limiting portion is located above the connecting disk, a snap-fit ​​position is formed between the limiting portion and the connecting disk, and the annular portion is snapped into the snap-fit ​​position.

[0011] As a further improvement of the above technical solution, a necking portion is provided at the upper end of the screw cover, and the annular portion is provided on the inner side of the necking portion; the upper end surface of the necking portion is higher than the upper end surface of the annular portion, and the upper ends of the annular portion and the necking portion form an L-shaped position, and the lower end of the limiting portion is clamped on the L-shaped position.

[0012] The beneficial effects of the utility model are as follows: the utility model provides a connecting disk on the outer periphery of the main body, a ring portion on the inner side of the screw cover, a groove on the upper side of the connecting disk, and a rib on the lower side of the ring portion, which is inserted into the groove, thereby limiting the relative rotation of the main body and the screw cover. When the screw cover is fixedly connected to the bottle body, the main body and the screw cover are relatively fixed, avoiding the problem of synchronous rotation of the main body and the pump head assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further explained below with reference to the accompanying drawings and specific implementation methods.

[0014] Figure 1 This is a schematic diagram of the structure decomposition of the utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure at center A;

[0016] Figure 3 Schematic diagram of the bottom structure of the screw cover;

[0017] Figure 4 This is a structural sectional view of the utility model;

[0018] Figure 5 for Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0019] In the figure: 1-main body, 10-accommodating chamber, 11-internal thread, 12-limiting portion, 13-clamping position, 14-connecting plate, 141-groove rib, 142-groove, 2-screw cover, 21-annular portion, 211-convex rib, 22-narrowing portion, 23-L-shaped clamping position, 3-pump head assembly, 31-external thread. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] Reference Figures 1 to 5, a press pump, comprising a body 1, a pump head assembly 3 (including a pump head and a liquid inlet tube fixedly connected to the pump head) and a screw cover 2. The middle part of the body 1 is provided with a accommodating chamber 10 with an upper end opening, the pump head assembly 3 is movably connected up and down in the accommodating chamber 10, and the screw cover 2 is sleeved on the outer circumference of the body 1. The press pump has an unlocked state and a locked state. The inner side wall of the body 1 is provided with an internal thread 11, and the outer side wall of the pump head assembly 3 is provided with an external thread 31. In the locked state, the internal thread 11 is threadedly connected to the external thread 31. When unlocked, by rotating the pump head assembly 3, the external thread 31 is disengaged from the internal thread 11, and the pump head assembly 3 rises under the action of the spring, and the pump head assembly 3 can move up and down in the accommodating chamber 10 to discharge liquid, and then convert it into an unlocked state. The outer periphery of the body 1 is fixedly connected to a connecting disk 14, and a groove 142 is provided on the upper side of the connecting disk 14, and the groove 142 is recessed downward. The screw cover 2 is a hollow ring, and an annular portion 21 is provided on the inner side of the screw cover 2. A rib 211 is provided on the lower side of the annular portion 21, and the rib 211 protrudes downward. The annular portion 21 is located above the connecting disk 14, and the rib 211 is inserted into the groove 142, thereby limiting the relative rotation of the body 1 and the screw cover 2. When the screw cover 2 is fixedly connected to the bottle body, the body 1 and the screw cover 2 are relatively fixed, and the body 1 cannot rotate horizontally, thereby avoiding the problem of synchronous rotation of the body 1 and the pump head assembly 3 when the pump head assembly 3 is rotated.

[0025] In a preferred embodiment, an annular recess is provided on the upper side surface of the connecting disk 14, and a plurality of evenly spaced groove ribs 141 are provided in the annular recess, and the groove 142 is formed between two adjacent groove ribs 141; the number of the convex ribs 211 is several and they are distributed in an annular shape on the lower side surface of the annular portion 21, and a plurality of snap-fit ​​positions 13 are formed between the connecting disk 14 and the annular portion 21 to improve the stability of the rotation limiting structure.

[0026] In some embodiments, the groove 142 is arc-shaped and has a certain length (arc length), the number of the ribs 211 is twice the number of the grooves 142, and two ribs 211 are inserted into each groove 142. The two ribs 211 in the same groove 142 respectively abut against the two groove ribs 141 in front and behind the groove 142.

[0027] In a preferred embodiment, a limiting portion 12 is provided on the outer periphery of the main body 1, and the limiting portion 12 is located above the connecting disk 14. A snap-fit ​​position 13 is formed between the limiting portion 12 and the connecting disk 14, and the annular portion 21 is snapped into the snap-fit ​​position 13. The snap-fit ​​position 13 limits the freedom of the annular portion 21 in the vertical direction.

[0028] In some embodiments, a necking portion 22 is provided at the upper end of the screw cover 2, and the annular portion 21 is provided on the inner side of the necking portion 22; the upper end surface of the necking portion 22 is higher than the upper end surface of the annular portion 21, and the upper ends of the annular portion 21 and the necking portion 22 form an L-shaped latch 23, and the lower end of the limiting portion 12 is latched on the L-shaped latch 23.

[0029] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A press pump, comprising a body (1), a pump head assembly (3) and a screw cover (2), wherein a receiving cavity (10) with an upper end opening is provided in the middle of the body (1), the pump head assembly (3) is movably connected in the receiving cavity (10), and the screw cover (2) is sleeved on the outer periphery of the body (1), characterized in that: A connecting disk (14) is provided on the outer periphery of the body (1), a groove (142) is provided on the upper side of the connecting disk (14), an annular portion (21) is provided on the inner side of the screw cover (2), a convex rib (211) is provided on the lower side of the annular portion (21), the annular portion (21) is located above the connecting disk (14), and the convex rib (211) is inserted into the groove (142).

2. A compression pump according to claim 1, characterized in that: An annular recess is provided on the upper side of the connecting disk (14), a plurality of spaced groove ribs (141) are provided in the annular recess, and the groove (142) is formed between two adjacent groove ribs (141); The number of the convex ribs (211) is several and they are distributed in an annular shape on the lower side of the annular portion (21).

3. A compression pump according to claim 2, characterized in that: The groove (142) is arc-shaped and has a certain length. The number of the convex ribs (211) is twice the number of the grooves (142). Two convex ribs (211) are inserted into each groove (142). The two convex ribs (211) in the groove (142) respectively abut against the two groove ribs (141) of the groove (142).

4. The compression pump according to claim 1, wherein: A limiting portion (12) is provided on the outer periphery of the body (1), the limiting portion (12) is located above the connecting disk (14), a snap-fit ​​position (13) is formed between the limiting portion (12) and the connecting disk (14), and the annular portion (21) is snap-fitted into the snap-fit ​​position (13).

5. A compression pump according to claim 4, characterized in that: The upper end of the screw cover (2) is provided with a necking portion (22), and the annular portion (21) is provided on the inner side of the necking portion (22); The upper end surface of the necked portion (22) is higher than the upper end surface of the annular portion (21); the upper ends of the annular portion (21) and the necked portion (22) form an L-shaped latch (23); and the lower end of the limiting portion (12) is latched on the L-shaped latch (23).

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