CN201721750U - Novel foam pump - Google Patents

Abstract

The utility model relates to a novel foam pump, which comprises a bottle cap, a body, a press head, a gas piston, a liquid piston, a valve, a needle post, a spring, a glass ball, a suction pipe and a net, wherein the gas piston and the liquid piston are sleeved together and are arranged in the upper part of the bottle cap after being integrated into a piston through a plurality of connecting ribs in the middle part; the valve comprises an inner thin ring and an outer thin ring and a connecting plate for connecting the inner thin ring and the outer thin ring, the valve is arranged between the lower part of the net through and the upper parts of the gas piston and the liquid piston, and the outer walls of the outer thin ring and the inner thin ring are respectively contacted with the inner walls of the gas piston and the liquid piston; the upper end of the liquid piston is provided with an air inlet hole which is convenient for the positive air pressure in the air storage cavity to push the inner thin ring away to enter the gas-liquid mixing cavity when the press head is pressed down, and a space which is convenient for the outside air to push the outer thin ring away to enter the air storage cavity when the press head is reset is arranged between the contact walls of the gas piston and the outer thin ring. The assembly of the device is convenient, the number of parts is reduced, and the material consumption and the assembly process are greatly reduced, so that the production cost is reduced, and the working stability is improved.

Description

New Foam Pump

【Technical field】

The utility model relates to a gas-liquid mixing device, in particular to a foam pump which mixes gas and liquid into foam and then presses it out.

【Background technique】

At present, the bottles that are filled with washing liquid, shampoo or other liquids have foam pumps on their bottlenecks. As shown in Figure 1, the foam pumps include bottle caps 100, body 101, press head 102, gas Piston 103, liquid piston 104, valve 105, needle column 106, spring 107, glass ball 108, auxiliary column 109, suction pipe 110 and Netcom 111, etc., after the bottle cap 100 is screwed onto the bottle mouth, the suction pipe 110 below the body 101 is inserted into the solution in the bottle. During operation, press down the push head 100, while the gas piston 103, liquid piston 104, valve 105 and needle column 106 move downward, the valve 105 blocks the air inlet 1031 of the gas piston 103, and the glass ball 108 is blocked in the body The liquid inlet 1011 of 101, so the gas in the gas storage chamber A is pressurized to form a positive air pressure, and the liquid in the liquid storage chamber B is pressurized to form a positive pressure pressure, and the positive air pressure pushes the sheet 1051 above the valve 105 to enter In the gas-liquid mixing chamber C, the positive hydraulic liquid also enters the gas-liquid mixing chamber C from the gap between the top of the needle column 106 and the top of the hydraulic piston 104, so the gas and liquid in the mixing chamber are fully mixed into foam in the network channel 111 Then pump out from the outlet 1021 of the press head 100 to realize the process of pumping foam. Then, release the push button, under the action of back-moving spring 107, gas piston 103, liquid piston 104, valve 105 and needle post 106 move upwards and reset, and sheet 1051 seals the air passage in the middle of gas and liquid pistons 104, 105, and The needle column 109 seals the upper end of the liquid piston 105, and both the air storage chamber A and the liquid storage chamber B form a negative pressure, so the outside air pushes the valve 105 through the air inlet 1031 and enters the air storage chamber A to complete the gas storage process. The liquid in the suction tube 110 pushes away the glass bulb 108 and then enters the liquid storage chamber B to complete the liquid storage process. The air and liquid pistons of the foam pump at the present stage are independent and installed in different positions, which will inevitably lead to more parts and complex assembly of the foam pump, resulting in higher production costs; The fit between them may be less flexible, resulting in lower stability.

【Content of utility model】

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a novel foam pump with simple structure, low production cost and high stability.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A new type of foam pump, including a bottle cap, a body and a press head that are nested together, and a gas piston, a liquid piston, a valve, a needle column, a spring, a glass ball, a straw and a net in them, wherein the The gas and liquid pistons are integrated into the upper part of the bottle cap through several connecting ribs in the middle; the valves include inner and outer thin rings and connecting plates connecting them, and the valves are arranged at the lower part of the net and the gas and liquid pistons. Between the upper part, and its outer and inner thin ring outer walls are in contact with the inner walls of the gas and liquid pistons respectively; an air storage chamber is formed between the body and the gas and liquid pistons, and the lower part of the liquid piston, the needle column and the glass ball are in the body A liquid storage chamber is formed inside, and a gas-liquid mixing chamber is formed between the net, the inner thin ring, the liquid piston and the upper part of the needle column; the upper end of the liquid piston is provided with a positive valve that is convenient for the air storage chamber when the head is pressed down. The air pressure pushes away the inner thin ring to enter the air inlet of the gas-liquid mixing chamber, and there is a space between the contact wall of the gas piston and the outer thin ring to facilitate external air to push the outer thin ring to enter the gas storage chamber when the head is reset.

In the improved solution to the above-mentioned new foam pump, the spring includes a two-stage variable-diameter spring composed of a narrow spring and a wide spring. On the inner boss and the card platform of the needle post.

In an improved solution to the above-mentioned novel foam pump, the shape of the needle column is oval.

In an improved solution to the above-mentioned novel foam pump, the space is formed by the gap between the tapered hole of the gas piston and the tapered column of the outer thin ring.

Compared with the prior art, the beneficial effects of the utility model are: 1), the gas and liquid pistons of the utility model are integrally formed, which can facilitate assembly, reduce parts, and can greatly reduce material consumption and assembly procedures , thereby reducing production costs and improving work stability; 2), in a preferred embodiment of the present invention, since the spring includes a two-stage variable-diameter spring composed of a narrow spring and a wide spring, it has reset and sealing functions , so that the work of the foam pump is more stable.

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

【Description of drawings】

Fig. 1 is the structural representation of foam pump at present stage;

Fig. 2 is a schematic structural view of an embodiment of the utility model.

【Detailed ways】

The utility model is a new type of foam pump, which includes a bottle cap 1, a body 2 and a press head 3 which are socketed together, and a gas piston 4, a liquid piston 5, a valve 6, a needle column 7, a spring 8. Glass ball 9, suction pipe 10 and Netcom 11, where the gas and liquid pistons 4 and 5 are arranged in the upper part of the bottle cap 1 after the gas and liquid pistons 4 and 5 pass through several connecting ribs 12 in the middle; Thin rings 61,62 and the connecting plate 63 that connects them, valve 6 is arranged between the top of net 11 bottoms and gas and liquid pistons 4,5, and its outer and inner thin rings 62,61 outer walls are respectively connected to gas and liquid The inner walls of the pistons 4 and 5 are in contact; an air storage chamber A is formed between the body 2 and the gas and liquid pistons 4 and 5, and the lower part of the liquid piston 5, the needle column 7 and the glass ball 9 form a liquid storage chamber B in the body 2 , a gas-liquid mixing chamber C is formed between the net 11, the inner thin ring 61, the liquid piston 5 and the upper part of the needle column 7; the upper end of the liquid piston 5 is provided with a gas storage chamber A that is convenient for pressing down the head 3 The positive air pressure pushes away the inner thin ring 61 and enters the air intake hole 51 of the gas-liquid mixing chamber C, and is provided between the contact wall of the gas piston 4 and the outer thin ring 62 to facilitate the outside air to push the outer ring 62 when the head 3 is reset. The thin ring 62 enters the space D of the air storage chamber A. When working, press the button 3, while the whole piston, the valve 6, the needle column 7 and the net 11 move downward, and when the glass ball 9 blocks the liquid inlet 21 of the body 2, on the one hand, the liquid storage chamber B forms a positive hydraulic pressure, so part of the liquid in the liquid storage chamber flows into the mixing chamber C from the gap between the needle column 7 and the liquid piston 5; The positive pressure gas passes through the through hole 13 between the connecting ribs 12 and the air intake hole 51 on the upper end of the liquid piston 5, and then pushes away the inner thin ring 61 and enters the mixing chamber C, so that the gas and liquid in the mixing chamber C are in the net 11 Mix into foam, and finally pump it out from the outlet 31 of the press head 3 to realize the process of pumping foam. Then, release the push button, the whole piston, valve 6, needle column 7 and Netcom 11 move upward and reset, the inner thin ring 61 is blocked on the air inlet 51 of the liquid piston 5, and the upper end of the needle column 7 is blocked in the liquid On the wall of the inner boss 52 of the piston 5, the air storage chamber A and the liquid storage chamber B respectively form a negative pressure, so that the outside air pushes the outer thin ring 62 of the valve 6 through the space D and enters the air storage chamber A to realize gas storage, while The liquid in the suction pipe 10 pushes away the glass bulb 9 and then enters the liquid storage chamber B to realize the liquid storage process, preparing for the next pumping of foam. The gas and liquid pistons of the utility model are integrally formed, which not only facilitates assembly and reduces parts, but also greatly reduces material consumption and assembly procedures, thereby reducing production costs and improving work stability.

In this embodiment, the spring 8 includes a two-stage variable-diameter spring composed of a narrow spring 81 and a wide spring 82, and a clamping platform 71 is provided at the lower part of the needle column 7, and the two ends of the narrow spring respectively act on the liquid piston. 5 on the inner boss 52 of the needle column 7 and the clamping platform 71 of the needle column 7, so that when the needle column is reset upwards, it can be pulled to make it seal with the liquid piston 5 above the liquid storage chamber B, rather than the present stage. In that way, it is sealed above the liquid storage chamber B by the gravity of the needle column itself. After a good sealing effect is played, the liquid in the suction pipe 10 can push away the glass ball 9 more easily and smoothly to enter the liquid storage chamber during liquid storage, so that The work of the foam pump is more stable, so the reducing spring in this embodiment has reset and sealing functions.

In this embodiment, the shape of the needle column is flat, such as oval, which facilitates the needle column to pass through the liquid piston 5 and the spring 8 more smoothly. The needle posts at this stage are all round.

In this embodiment, the space D is formed by the gap between the tapered hole of the gas piston 4 and the tapered column of the outer thin ring 62 .

Claims (4)

1. novel foam pump, include the bottle cap, body and the head that connect together, and be located at gas piston, liquid piston, valve, pin post, spring, glass bead, suction pipe and Netcom in them, it is characterized in that: described gas, liquid piston are arranged in the bottle cap top after the middle part becomes piston integral body by some dowels; The connecting panel that described valve includes inside and outside thin ring and they are coupled together, valve are arranged on that the Netcom bottom is gentle, between the top of liquid piston, and it is outer, interior thin ring outer wall contacts with gas, liquid piston inwall respectively; Described body is gentle, formed air storing cavity between the liquid piston, and described liquid piston bottom, pin post and glass bead form liquid storage cylinder in body, formed the gas-liquid mixed chamber between described Netcom, interior thin ring, liquid piston and the pin post top; Described liquid piston upper end be provided with the positive air pressure of when head presses down, being convenient in the air storing cavity push open in thin ring enter the induction opening in gas-liquid mixed chamber, between the contact wall of gas piston and outer thin ring, be provided with and when head resets, be convenient to outside air and approach outside pushing open and encircle the space that enters air storing cavity.

2. novel foam pump according to claim 1, it is characterized in that: spring includes the two sectional type Spring capable of diameter varying of being made up of narrow spring and wide spring, be provided with Ka Tai in pin post bottom, the two ends of described narrow spring act on respectively on the Ka Tai of the inner convex platform of liquid piston and pin post.

3. novel foam pump according to claim 1 and 2 is characterized in that: described pin post be shaped as ellipse.

4. novel foam pump according to claim 3 is characterized in that: described space is formed by the gap between the tapered column of gas piston taper hole and outer thin ring.

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