CN103708092A - Stable ejection lotion pump - Google Patents

Abstract

The invention discloses a stable ejection lotion pump comprising a connecting cap. The stable ejection lotion pump is characterized in that a pump unit is disposed inside the connecting cap, the upper portion of the pump unit is provided with a button capable of driving the pump unit to operate, the connecting cap is sleeved with a large outer cap, the button is arranged in the large outer cap, a connecting convex ring is arranged on the outer wall of the lower end of the connecting cap, the inner wall of the lower end of the large outer cap is provided with a circular connecting groove, and the connecting convex ring is locked in the circular connecting grove. The lotion pump which is simple in structure, low in production cost, convenient to use, capable of quickly starting to pump and relatively stable in ejection volume is provided to overcome the defects of the prior art.

Description

A lotion pump with stable spray volume

technical field

The invention relates to a lotion pump with stable discharge volume.

Background technique

Because of its exquisite design and convenient use, the lotion pump has been widely used in daily chemical and pharmaceutical industries. However, the existing lotion pump has many parts, complex structure, difficult manufacture, and high production cost. After the existing lotion pump is disassembled and packaged, the nozzle of the lotion pump will be exposed to the outside for a long time, and pollutants such as dust will be exposed during use. It is easy to enter the nozzle and cause contamination. In addition, due to the defects in the design of the existing lotion pump, there are disadvantages such as relatively slow starting of the pump during use, and relatively insufficient stability of the ejection volume. Can not meet the needs of users.

Therefore, the existing lotion pump needs to be further improved.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art and provide a lotion pump with simple structure, low production cost, convenient use, quick start-up, relatively stable discharge volume and stable discharge volume.

In order to achieve the above object, the present invention adopts the following scheme:

A lotion pump with stable spray volume, including a combination cover, is characterized in that: a pump body assembly is arranged inside the combination cover, and a button capable of driving the pump body assembly is arranged on the upper part of the pump body assembly. The combined cover is provided with a large outer cover, the button is arranged in the large outer cover, a connecting convex ring is provided on the outer wall of the lower end of the combined cover, and an annular connection concave ring is provided on the inner wall of the lower end of the large outer cover. groove, and the connecting protruding ring is clamped in the annular connecting groove.

A lotion pump with stable discharge as described above is characterized in that the pump body assembly includes a pump chamber, and a locking cover is provided on the inner wall of the upper part of the pump chamber, and inside the locking cover An upper pump rod is provided, and a limit step is arranged on the upper pump rod. The upper pump rod on the upper part of the limit step protrudes from the combined cover, and the upper pump rod on the lower part of the limit step is arranged in the combined cover. , the button is connected to the upper pump rod, a piston is sleeved on the outer wall of the upper pump rod below the limit step, and a secondary spring is arranged between the piston and the limit step, and the secondary spring sleeve Set on the upper pump rod, a lower pump rod is provided in the pump chamber below the upper pump rod, a positioning step is provided at the lower part of the pump chamber, and a main spring is provided between the lower pump rod and the positioning step, A pump bead is arranged at the lower part of the pump chamber.

A lotion pump with a stable spray volume as described above is characterized in that a positioning projection is provided on the locking cover, a positioning hole is provided at the upper end of the pump chamber, and the positioning projection is set on the positioning inside the hole.

A lotion pump with stable discharge volume as described above is characterized in that the pump chamber includes a first pump area, and a second pump area is arranged below the first pump area, and the inner diameter of the second pump area is smaller than The inner diameter of the first pump area, a first connection part is provided between the first pump area and the second pump area, and a third pump area is connected to the lower end of the second pump area, and the third pump area The inner diameter is smaller than the inner diameter of the second pump area, a second connection part is provided between the second pump area and the third pump area, and the positioning step is arranged below the third pump area.

A lotion pump with stable spraying volume as described above is characterized in that the combination cover includes a cover body, and a convex connection part is provided on the upper end surface of the cover body, and a convex connection part is provided in the middle of the convex connection part. There is a mounting hole, the upper pump rod is set in the mounting hole, a positioning connection groove is provided on the inner wall of the outer convex connection part, and a limiting convex ring is provided on the outer wall of the first pump area. The ring clip is arranged on the positioning connection groove.

The above-mentioned lotion pump with stable discharge is characterized in that the lower pump rod includes a lower pump rod body that can be inserted into the inner cavity of the upper pump rod body, and a sealing head is provided on the lower end of the lower pump rod body.

The above-mentioned lotion pump with stable discharge volume is characterized in that a gasket is provided in the combined cover.

A lotion pump with stable discharge volume as described above is characterized in that a liquid introduction tube is connected to the lower end of the pump chamber.

A lotion pump with stable discharge as described above is characterized in that a connecting thread is provided in the coupling cap.

A lotion pump with stable discharge volume as described above is characterized in that a positioning groove is provided on the lower end surface of the coupling cover.

In summary, the present invention has the beneficial effects relative to the prior art as follows:

1. The structure of the present invention is simple. A pump body assembly is arranged inside the combination cover, a button is arranged on the upper part of the pump body assembly, and a large outer cover is arranged on the outer cover of the combination cover, which effectively prevents pollutants such as dust from entering the button and ensures Improve the hygiene of the lotion pump.

2. The pump body assembly of the present invention adopts a double-spring design, so that the emulsion pump of the present invention is pumped quickly and the spray volume is stable.

3. The lotion pump of the present invention has low production cost and is easy to use.

4. In the present invention, the inside of the joint cap is provided with a screw thread, so that the joint cap and the bottle body are tightened by thread rotation, and the operation is convenient, safe and reliable.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the present invention;

Fig. 2 is the exploded schematic diagram of Fig. 1;

Fig. 3 is a schematic cross-sectional view in Fig. 1;

Fig. 4 is the enlarged view of place A in Fig. 3;

Fig. 5 is the enlarged view of place B in Fig. 3;

Fig. 6 is the schematic diagram of locking cover in the present invention;

Fig. 7 is the schematic diagram of the pump chamber of the present invention;

Fig. 8 is a schematic diagram of the combination cover of the present invention;

Fig. 9 is a schematic diagram of the lower pump rod of the present invention.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing description and specific embodiment:

A kind of lotion pump with stable ejection as shown in Figures 1 to 3 includes a combination cover 1, a pump body assembly 2 is arranged inside the combination cover 1, and a driveable The button 3 of the pump body assembly 2 is provided with a large outer cover 4 outside the combined cover 1, the button 3 is arranged in the large outer cover 4, and a connecting convex ring is provided on the outer wall of the lower end of the combined cover 1 11. An annular connecting groove 41 is provided on the inner wall of the lower end of the large outer cover 4 , and the connecting convex ring 11 is clamped in the annular connecting groove 41 . In the present invention, a large outer cover 4 is provided outside the combined cover 1 to effectively prevent pollutants such as dust from entering the button 3 and ensure the sanitation of the lotion pump.

As shown in Figures 2, 3, and 4, the pump body assembly 2 of the present invention includes a pump chamber 21, and a locking cover 22 is provided on the inner wall of the upper part of the pump chamber 21, and inside the locking cover 22 An upper pump rod 23 is provided, and a limit step 24 is arranged on the upper pump rod 23. The upper pump rod 23 on the upper part of the limit step 24 stretches out from the combined cover 1, and the upper part of the lower part of the limit step 24 The pump rod 23 is arranged in the combination cover 1, the button 3 is connected on the upper pump rod 23, and the outer wall of the upper pump rod 23 below the limit step 24 is sleeved with a piston 25, and the piston 25 and the limit A secondary spring 26 is arranged between the steps 24, and the secondary spring 26 is sleeved on the upper pump rod 23, and a lower pump rod 27 is arranged in the pump chamber 21 below the upper pump rod 23, and the pump rod 27 is arranged on the pump rod 23 below the pump rod 23. A positioning step 28 is provided at the lower part of the chamber 21 , a main spring 29 is provided between the lower pump rod 27 and the positioning step 28 , and a pump bead 210 is provided at the lower part of the pump chamber 21 .

As shown in FIG. 7 , the lower pump rod 27 in the present invention includes a lower pump rod body 271 that can be inserted into the inner cavity of the upper pump rod 23 , and a sealing head 272 is provided on the lower end of the lower pump rod body 271 .

In the present invention, the pump body assembly 2 adopts a double-spring design, so that the emulsion of the present invention can be pumped quickly and the ejection volume is stable.

As shown in FIG. 6 , in the present invention, a positioning projection 221 is provided on the locking cover 22 , and a positioning hole is provided at the upper end of the pump chamber 21 , and the positioning projection 221 is disposed in the positioning hole.

As shown in Figures 2, 3, 4 and 7, the pump chamber 21 of the present invention includes a first pump area 211, a second pump area 212 is provided below the first pump area 211, and the second pump area 212 The inner diameter is smaller than the inner diameter of the first pump area 211, a first connection part 213 is provided between the first pump area 211 and the second pump area 212, and a third pump area 214 is connected to the lower end of the second pump area 212 , the inner diameter of the third pump area 214 is smaller than the inner diameter of the second pump area 212, a second connection part 215 is provided between the second pump area 212 and the third pump area 214, and the positioning step 28 is set Below said third pump zone 214 .

As shown in Figures 2, 3 and 8, the combination cover 1 in the present invention includes a cover body 12, and an outer convex connection part 13 is arranged on the upper end surface of the cover body 12, and in the middle of the outer convex connection part 13 There is a mounting hole 14, the upper pump rod 23 is set in the mounting hole 14, a positioning connection groove 15 is provided on the inner wall of the outer convex connecting part 13, and a limiting protrusion is provided on the outer wall of the first pump area 211. Ring 2111 , the limiting protruding ring 2111 is clamped on the positioning connection groove 15 .

In the present invention, a gasket 5 is provided inside the combination cover 1 . A liquid introduction tube 6 is connected to the lower end of the pump chamber 21 . A connecting thread 7 is provided inside the combined cover 1 . A positioning groove 8 is provided on the lower end surface of the combination cover 1 .

Working principle of the present invention:

1. Pull out the large outer cover 4 during use;

2. When the button 3 is pressed, the elastic force of the main spring 29 is overcome, and the button 3 moves down. Due to the elastic force of the auxiliary spring 26, the piston 25 moves down together, and the gas in the inner cavity of the pump chamber 21 is compressed. When the piston 25 withstands the first When the first connection part 213 between the first pump area 211 and the second pump area 212 overcomes the elastic force of the auxiliary spring 26, the sealing position between the piston 25 and the lower pump rod 27 is opened, and the gas in the inner cavity of the pump chamber 21 will be discharged from this position; The lower pump rod 27 moves down to the second connection part 215 between the second pump area 212 and the third pump area 214, and the button 3 stops pressing down;

3. When the button 3 is released, due to the action of the main spring 29 and the auxiliary spring 26, the piston 25 and the lower pump rod 27 are quickly sealed and rebound together, and the inner cavity of the pump chamber 21 forms a partial vacuum, and the liquid is pumped under the action of the external atmospheric pressure. Introduce and flush the pump bead 210 into the inner cavity from the liquid introduction tube 6; continue to press, and the liquid will be sprayed out through the upper pump rod 23 and through the outlet of the button 3 due to the incompressibility of the liquid.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A lotion pump with stable spray volume, including a combination cover (1), characterized in that: a pump body assembly (2) is arranged inside the combination cover (1), and a pump body assembly (2) ) is provided with a button (3) that can drive the pump body assembly (2) to work, and a large outer cover (4) is provided on the outer cover of the combined cover (1), and the button (3) is set on the large outer cover ( 4) Inside, a connecting convex ring (11) is provided on the outer wall of the lower end of the combination cover (1), and an annular connecting groove (41) is provided on the inner wall of the lower end of the large outer cover (4). The protruding ring (11) is clamped in the annular connection groove (41), and a positioning groove (8) is provided on the lower end surface of the coupling cover (1). 2. A lotion pump with stable spray volume according to claim 1, characterized in that the pump body assembly (2) includes a pump chamber (21), and the upper inner wall of the pump chamber (21) A locking cover (22) is provided, an upper pump rod (23) is arranged inside the locking cover (22), and a limit step (24) is arranged on the upper pump rod (23). The upper pump rod (23) on the upper part of the position step (24) protrudes from the combination cover (1), and the upper pump rod (23) on the lower part of the limit step (24) is set in the combination cover (1), the The button (3) is connected to the upper pump rod (23), and a piston (25) is sheathed on the outer wall of the upper pump rod (23) below the limit step (24). A secondary spring (26) is provided between the steps (24), and the secondary spring (26) is sleeved on the upper pump rod (23), and the pump chamber (21) below the upper pump rod (23) A lower pump rod (27) is provided inside, a positioning step (28) is provided at the lower part of the pump chamber (21), and a main spring (29) is arranged between the lower pump rod (27) and the positioning step (28). ), a pump bead (210) is provided at the lower part of the pump chamber (21). 3. A lotion pump with stable discharge volume according to claim 2, characterized in that a positioning projection (221) is provided on the locking cover (22), and a positioning bump (221) is provided on the upper end of the pump chamber (21). A positioning hole is provided, and the positioning protrusion (221) is arranged in the positioning hole. 4. A lotion pump with stable spray volume according to claim 2, characterized in that the pump chamber (21) includes a first pump area (211), below the first pump area (211) A second pump area (212) is provided, the inner diameter of the second pump area (212) is smaller than the inner diameter of the first pump area (211), between the first pump area (211) and the second pump area (212) A first connection part (213) is provided, and a third pump area (214) is connected to the lower end of the second pump area (212), and the inner diameter of the third pump area (214) is smaller than that of the second pump area ( 212) inner diameter, a second connection part (215) is provided between the second pump area (212) and the third pump area (214), and the positioning step (28) is set in the third pump area ( 214) below. 5. A lotion pump with stable spraying volume according to claim 2, characterized in that the combination cover (1) includes a cover body (12), and on the upper end surface of the cover body (12) there is a The convex connecting part (13) is provided with a mounting hole (14) in the middle of the convex connecting part (13), the upper pump rod (23) is set in the mounting hole (14), and the The inner wall of the part (13) is provided with a positioning connection groove (15), and the outer wall of the first pump area (211) is provided with a limiting convex ring (2111), and the limiting convex ring (2111) is clamped on the Locate on the connection groove (15). 6. A lotion pump with stable spray volume according to claim 2, characterized in that the lower pump rod (27) includes a lower pump rod body (271) that can be inserted into the inner cavity of the upper pump rod (23), A sealing head (272) is provided on the lower end of the lower pump rod body (271). 7. A lotion pump with stable discharge according to claim 1 or 5, characterized in that a gasket (5) is provided inside the combination cover (1). 8. A lotion pump with stable spray volume according to claim 2 or 4, characterized in that a liquid introduction tube (6) is connected to the lower end of the pump chamber (21), and the inside of the combination cover (1) A connecting thread (7) is provided.

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