Pump head assembly with locking function

Abstract

The utility model discloses a pump head assembly with a locking function, and belongs to the technical field of pump heads. A pump head assembly with a locking function comprises a bottle body and a shoulder sleeve coupled to the upper end of the bottle body, a pump body is embedded in the middle of the shoulder sleeve, and the upper end of the pump body is coupled and connected with a head cap; a locking part is arranged on the inner wall of the upper end of the shoulder sleeve, the locking part comprises a vertically-arranged pressing groove, a locking groove is horizontally formed in one side of the upper end of the pressing groove in a surrounding mode, and the locking groove communicates with the pressing groove; the shoulder sleeve is sleeved with the head cap, a locking piece is arranged on the periphery of the head cap in a protruding mode, and the protruding thickness of the locking piece is equal to the forming thickness of the pressing groove and the forming thickness of the locking groove. The outer periphery of the head cap is matched with the inner periphery of the shoulder sleeve, the locking piece is matched with the pressing groove, and the locking piece is in sliding connection with the pressing groove; and the locking piece is rotationally connected with the locking groove. The head cap and the pump body can be combined and matched so as to have a locking function.

Description

Technical Field

[0001] The utility model belongs to the technical field of pump heads, and more specifically relates to a pump head assembly with a locking function. Background Art

[0002] As living standards continue to improve, the variety of daily necessities and cosmetics has become richer and more diverse. Consequently, competition among major manufacturers has become increasingly fierce. To make products more beautiful and more convenient for consumers to use, products need to be more creative.

[0003] Currently, to achieve an on / off effect on the pump head assembly, we often design two ribs on the push cap. When the ribs on the push cap are in the groove in the tooth cap, the push cap can be pressed. When they are not in the groove, the push cap cannot be pressed. However, in this case, the pump head assembly cannot be used with printed square volumetric flasks or other non-circular volumetric flasks, which is aesthetically pleasing. Moreover, during use, the liquid in the volumetric flask often hangs on the glass bottle, causing waste and inconvenience for customers. When rotating the push cap, consumers often fail to turn it into the right position or turn it too far, causing damage to the product and shortening its service life. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a pump head assembly with a locking function, which can realize the combination and cooperation of the head cap and the pump body so that both have the locking function.

[0005] The utility model provides a pump head assembly with a locking function, including a bottle body and a shoulder sleeve coupled to the upper end of the bottle body, a pump body embedded in the middle of the shoulder sleeve, and a head cap coupled to the upper end of the pump body; a locking portion is provided on the inner wall of the upper end of the shoulder sleeve, and the locking portion includes a vertically arranged pressing groove, and a locking groove is horizontally provided around one side of the upper end of the pressing groove, and the locking groove and the pressing groove are connected to each other; the head cap is sleeved on the shoulder sleeve, and a locking piece is protruded from the outer periphery of the head cap, and the protrusion of the locking piece matches the pressing groove and the locking groove; the outer periphery of the head cap matches the inner periphery of the shoulder sleeve, and the locking piece matches the pressing groove, and the locking piece is slidably connected to the pressing groove; the locking piece is rotatably connected to the locking groove.

[0006] As a further improvement of the present invention, a first limiting column is provided on the middle part of the pressing groove protruding outward; a second limiting column is provided on the wall of the locking groove away from one end of the pressing groove, and the protruding thickness of the first limiting column and the second limiting column are equal; the middle part of the locking piece is recessed inward to form a limiting groove; the limiting groove matches the first limiting column and the second limiting column.

[0007] As a further improvement of the present invention, the bottle body is rectangular as a whole, and a bottle cavity is opened in the bottle body, and a liquid storage bottle is embedded in the bottle cavity; a limiting protrusion is provided around the outer periphery of the upper end of the bottle body, and the limiting protrusion abuts against a shoulder sleeve, and a limiting groove is provided around the lower end of the shoulder sleeve, and the limiting protrusion and the limiting groove cooperate with each other; a thread is provided on the outer periphery of the bottle mouth of the upper end of the liquid storage bottle, and the bottle mouth of the liquid storage bottle abuts into the shoulder sleeve; a thread groove is opened on the inner periphery of the lower end of the middle part of the shoulder sleeve, which matches the thread of the bottle mouth of the liquid storage bottle, and the thread groove is connected to the thread of the liquid storage bottle.

[0008] As a further improvement of the present invention, the lower end of the pump body is inserted into the liquid storage bottle, and the pump body and the liquid storage bottle are communicated with each other.

[0009] As a further improvement of the present invention, a pressing cavity is formed between the outer wall end of the thread groove and the outer peripheral wall of the shoulder sleeve; a movable cavity is provided at the upper middle end of the shoulder sleeve, and a baffle is provided between the movable cavity and the thread groove, and the baffle is made as one piece with the shoulder sleeve wall; a through hole is opened in the middle of the baffle, and the pump body is embedded in the through hole; convex edges are provided on both sides of the lower end of the pump body, and the convex edges are always in contact with the upper end of the baffle.

[0010] As a further improvement of the present invention, the head cap includes a cover body at the upper end, a pressing column is provided at the lower end of the cover body, a cavity is opened in the pressing column, and the head cap is mounted on the upper end of the shoulder cap; a liquid outlet cavity is opened on one side of the cover body, and the liquid outlet cavity is opened into the cavity of the head cap.

[0011] As a further improvement of the present invention, the upper end of the pump body abuts against the liquid outlet cavity, and the pump body and the liquid outlet cavity are communicated with each other.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] Compared to existing technologies, this utility model utilizes a locking member and a locking portion to lock the entire pump head into engagement by rotation, preventing liquid discharge and preventing leakage and liquid waste. Simultaneously, the entire pump head can be rotated back into the pressing groove to enable liquid discharge. This utility model has a simple structure, and the locking mechanism is located inside the cap, enhancing the overall aesthetics. Furthermore, the square bottle body and cap provided by this utility model are more aesthetically pleasing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the middle cross-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the shoulder cover of the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure and enlarged structure of the headgear of the utility model;

[0018] Figure 5 This is a schematic structural diagram of the locking portion of the utility model;

[0019] Figure 6 For this utility model Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0020] Description of the numbers in the figure:

[0021] Bottle body 1, liquid storage bottle 11, shoulder sleeve 2, movable cavity 21, threaded groove 22, pressing cavity 23, partition 24, through hole 241, locking part 25, pressing groove 251, first limiting column 252, locking groove 253, second limiting column 254, head cap 3, cover body 31, liquid outlet cavity 311, locking part 32, limiting groove 321, pump body 4. DETAILED DESCRIPTION

[0022] Specific embodiment 1: Please refer to Figures 1-6 A pump head assembly with a locking function includes a bottle body 1, which is generally rectangular and defines a bottle cavity within the bottle body 1. A liquid storage bottle 11 is embedded within the bottle cavity. A limiting protrusion is provided around the outer periphery of the upper end of the bottle body 1, and a shoulder sleeve 2 is abutted against the limiting protrusion. A limiting groove is provided around the lower end of the shoulder sleeve 2. The limiting protrusion and the limiting groove cooperate to enable the shoulder sleeve 2 to be fitted over the upper end of the bottle body 1. The outer periphery of the upper end of the bottle mouth of the liquid storage bottle 11 is provided with threads, and the bottle mouth of the liquid storage bottle 11 abuts against the shoulder sleeve 2.

[0023] A threaded groove 22 that matches the thread of the mouth of the liquid storage bottle 11 is provided on the inner periphery of the middle lower end of the shoulder sleeve 2. The threaded groove 22 is threadedly connected to the liquid storage bottle 11 so that the shoulder sleeve 2 and the liquid storage bottle 11 can be detachably connected. During the installation process, after the shoulder sleeve 2 is threadedly connected to the liquid storage bottle 11, the liquid storage bottle 11 is pushed toward the inner cavity of the bottle body 1. When the liquid storage bottle 11 is at the bottom of the inner cavity of the bottle body 1, the limiting groove in the lower end of the shoulder sleeve 2 and the limiting protrusion on the outer periphery of the upper end of the bottle body 1 are engaged with each other. A pressing cavity 23 is formed between the outer wall end of the threaded groove 22 and the outer wall of the shoulder sleeve 2, and a head cap 3 is embedded in the upper end of the pressing cavity 23. An active cavity 21 is provided at the middle upper end of the shoulder sleeve 2, and a baffle 24 is provided between the active cavity 21 and the threaded groove 22. The baffle 24 is made integrally with the wall of the shoulder sleeve 2. The baffle 24 has a through hole 241 in the middle, into which the pump body 4 is embedded. The lower end of the pump body 4 is provided with raised edges on both sides, which always abut against the upper end of the baffle 24, so that the raised edges of the pump body 4 abut against the baffle 24 to limit the position. A locking portion 25 is provided on the inner wall of the movable chamber 21. The locking portion 25 includes a vertically arranged pressing groove 251, which extends from the upper end of the shoulder sleeve 2 to the baffle 24. A first limiting post 252 protrudes outward from the middle of the pressing groove 251. A locking groove 253 is horizontally circumferentially formed on one side of the upper end of the pressing groove 251, and the locking groove 253 is connected to the pressing groove 251. A second limiting post 254 protrudes from the wall of the locking groove 253 away from the pressing groove 251. The first limiting post 252 and the second limiting post 254 have the same protruding thickness.

[0024] The head cap 3 includes a cover body 31 at the upper end, and the cross-section of the cover body 31 is rectangular. A pressing column is provided at the lower end of the cover body 31, and a cavity is provided in the pressing column. The head cap 3 is sleeved on the upper end of the shoulder cover 2. A liquid outlet cavity 311 is provided on one side of the cover body 31, and the liquid outlet cavity 311 is opened into the cavity of the head cap 3. A locking member 32 is provided on the outer periphery of the head cap 3, and the middle part of the locking member 32 is recessed inward to form a limiting groove 321. The limiting groove 321 matches the first limiting column 252 and the second limiting column 254. The outer periphery of the head cap 3 matches the inner periphery of the shoulder cover 2, and the locking member 32 matches the pressing groove 251. The locking member 32 is slidably connected to the pressing groove 251 so that the locking member 32 can move up and down in the pressing groove 251. The protruding thickness of the locking member 32 is equal to the opening thickness of the pressing groove 252 and the locking groove 253, so that the locking member 32 can abut against the locking groove 253 in the normal state. The locking member 32 is slidably connected to the locking groove 253 so that the locking member 32 can be rotated to lock.

[0025] The upper end of the pump body 4 abuts the liquid outlet cavity 311 , and the lower end of the pump body 4 abuts the liquid storage bottle 11 . The pump body 4 and the liquid outlet cavity 311 are communicated with each other, and the pump body 4 and the liquid storage bottle 11 are communicated with each other.

[0026] Under normal circumstances, the locking member 32 is located in the locking groove 253, and the limiting groove 321 of the locking member 32 abuts against the second limiting column 254. At this time, the head cap 3 cannot be pressed downward, and the lower end of the head cap 3 is placed in the pressing cavity 23. Under the normal circumstances, the distance between the lower end of the head cap 3 and the bottom end of the pressing cavity 23 is equal to the height of the pressing groove 251. When in use, the head cap 3 is rotated, and the locking member 32 is rotated from the far end of the locking groove 253 to the upper end of the pressing groove 251. The limiting groove 321 of the locking member 32 abuts against the first limiting column 252. At this time, force is applied to the head cap 3 to press the locking member 32 in the pressing groove 251.

[0027] Working principle:

[0028] The utility model sets the head cap in an integral linkage, and cooperates with the shoulder cover. When the vacuum bottle is not in use, the locking piece of the head cap is rotated into the locking groove and is limited by the limiting groove and the second limiting column to lock the up and down pressing. When the vacuum bottle needs to be used, the head cap is rotated to rotate the locking piece into the pressing groove and is limited by the limiting groove and the first limiting column to realize up and down pressing, so as to extract the liquid in the liquid storage bottle through the pump body.

Claims

1. A pump head assembly with a locking function, comprising a bottle body (1) and a shoulder sleeve (2) coupled to the upper end of the bottle body (1), a pump body (4) embedded in the middle of the shoulder sleeve (2), and a head cap (3) coupled to the upper end of the pump body (4); characterized in that: A locking portion (25) is provided on the inner wall of the upper end of the shoulder sleeve (2), and the locking portion (25) includes a vertically arranged pressing groove (251), and a locking groove (253) is horizontally opened around one side of the upper end of the pressing groove (251), and the locking groove (253) and the pressing groove (251) are connected to each other; the head cap (3) is sleeved on the shoulder sleeve (2), and a locking member (32) is protruded from the outer periphery of the head cap (3), and the protrusion of the locking member (32) matches the pressing groove (251) and the locking groove (253); the outer periphery of the head cap (3) matches the inner periphery of the shoulder sleeve (2), and the locking member (32) matches the pressing groove (251), and the locking member (32) and the pressing groove (251) are slidably connected; the locking member (32) and the locking groove (253) are rotatably connected.

2. A pump head assembly with a locking function according to claim 1, characterized in that: A first limiting column (252) is provided on the middle of the pressing groove (251) protruding outward; a second limiting column (254) is provided on the wall of the locking groove (253) away from the pressing groove (251), and the protruding thicknesses of the first limiting column (252) and the second limiting column (254) are equal; the middle of the locking member (32) is recessed inward to form a limiting groove (321); the limiting groove (321) matches the first limiting column (252) and the second limiting column (254).

3. The pump head assembly with a locking function according to claim 1, characterized in that: The bottle body (1) is rectangular as a whole, and a bottle cavity is provided in the bottle body (1), and a liquid storage bottle (11) is embedded in the bottle cavity; a limiting protrusion is provided around the outer periphery of the upper end of the bottle body (1), and the limiting protrusion abuts against the shoulder sleeve (2); a limiting groove is provided around the lower end of the shoulder sleeve (2), and the limiting protrusion and the limiting groove cooperate with each other; a thread is provided around the outer periphery of the bottle mouth of the upper end of the liquid storage bottle (11), and the bottle mouth of the liquid storage bottle (11) abuts against the shoulder sleeve (2); a thread groove (22) is provided on the inner periphery of the lower end of the middle part of the shoulder sleeve (2) and matches the thread of the bottle mouth of the liquid storage bottle (11), and the thread groove (22) is threadedly connected to the liquid storage bottle (11).

4. A pump head assembly with a locking function according to claim 3, characterized in that: The lower end of the pump body (4) is inserted into the liquid storage bottle (11), and the pump body (4) and the liquid storage bottle (11) are communicated with each other.

5. The pump head assembly with a locking function according to claim 3, characterized in that: A pressing cavity (23) is formed between the outer wall end of the thread groove (22) and the outer peripheral wall of the shoulder sleeve (2); a movable cavity (21) is provided at the upper middle end of the shoulder sleeve (2), and a baffle (24) is provided between the movable cavity (21) and the thread groove (22), and the baffle (24) and the wall of the shoulder sleeve (2) are made as one piece; a through hole (241) is provided in the middle of the baffle (24), and the pump body (4) is embedded in the through hole (241); convex edges are provided on both sides of the lower end of the pump body (4), and the convex edges always abut against the upper end of the baffle (24).

6. The pump head assembly with a locking function according to claim 1, characterized in that: The head cap (3) includes a cover body (31) at the upper end, a pressing column is provided at the lower end of the cover body (31), a cavity is opened in the pressing column, and the head cap (3) is sleeved on the upper end of the shoulder sleeve (2); a liquid outlet cavity (311) is opened on one side of the cover body (31), and the liquid outlet cavity (311) is opened into the cavity of the head cap (3).

7. The pump head assembly with a locking function according to claim 6, characterized in that: The upper end of the pump body (4) abuts against the liquid outlet cavity (311), and the pump body (4) and the liquid outlet cavity (311) are communicated with each other.

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