Foam pump capable of controlling foam liquid discharge

Abstract

The utility model provides a foam pump with controllable foam liquid discharge, which comprises an upper cover, a first shell, a second shell, a third shell, a motor assembly, an eccentric wheel assembly, an air bag assembly, an umbrella pin assembly and a one-way valve plate, a liquid discharge cavity, an air inlet cavity and a liquid inlet cavity are arranged between the upper cover and the first shell at intervals, the air bag assembly is mounted on the second shell, and the air bag assembly is mounted on the third shell. The liquid outlet cavity, the air inlet cavity and the liquid inlet cavity penetrate through the first shell to be communicated with an inner cavity of the air bag assembly, the umbrella pin assembly is installed at the position, located on the bottom face of the air inlet cavity and the bottom face of the liquid inlet cavity, of the first shell, and the motor assembly is used for driving the eccentric wheel assembly to extrude a rubber cup of the air bag assembly for pumping. The air bag assembly is provided with a leather cup liquid cavity and two leather cup air cavities, the volume of the leather cup liquid cavity is smaller than that of the leather cup air cavities, and the umbrella pin assembly is provided with a boss structure which abuts against the first shell. According to the utility model, the foam liquid outlet effect is controllable, the problem that the umbrella pin assembly is easy to adhere can be avoided, and the service life of the umbrella pin assembly is longer.

Description

TECHNICAL FIELD

[0001] The utility model relates to diaphragm pump technical field especially, relates to a foam pump of foam liquid controllable. BACKGROUND

[0002] Foam pump is the device that gas and liquid are mixed, produce foam. The existing foam pump generally includes power component and foam generator, through power component inhale gas and liquid, then, gas and liquid are into foam generator, through foam generator mix gas and liquid, produce foam.

[0003] The foam pump in prior art, air directly enters hand washing liquid storage bottle, need to use, air and hand washing liquid are into foam pump, simultaneously, the part of foam that produces is also easy to flow back to hand washing liquid storage bottle, thereby easy to contaminate hand washing liquid because of air or foam that flows back to hand washing liquid storage bottle, long time not use or long time not use complete hand washing liquid will be easy to deteriorate, thereby influence use, waste hand washing liquid. But the existing foam pump has complex structure, manufacture assembly difficulty, foam pump bubble effect is not good uncontrolled, and use as check valve's umbrella structure will be adhered after long time use with shell, cause blockage, influence service life.

[0004] Now need a kind of new foam pump structure, can solve the problem proposed above. Utility model content

[0005] The utility model provides a kind of foam pump of foam liquid controllable, by the technical reformation to existing foam pump, solve the problem of existing foam pump bubble effect is not good.

[0006] To achieve the above object, the technical scheme adopted by the utility model is:

[0007] The utility model provides a kind of foam pump of controllable foam effluent, including upper cover, first shell, second shell, third shell, motor assembly, eccentric wheel assembly, air bag assembly, umbrella and unidirectional valve piece, fastening bolt is sequentially linked and arranged through upper cover, first shell, second shell and third shell, third shell bottom end is fixedly connected with motor, and the upper cover is provided with liquid inlet nozzle and air inlet, first shell is outwardly extended and is provided with liquid outlet nozzle, the upper cover and first shell are spaced apart and are provided with liquid outlet chamber, air inlet chamber and liquid inlet chamber, the liquid outlet nozzle and liquid outlet chamber are connected and arranged, air inlet chamber is connected and arranged with air inlet, liquid inlet chamber is connected with liquid inlet nozzle, second shell is installed with air bag assembly, and the liquid outlet chamber, air inlet chamber and liquid inlet chamber are connected and arranged through first shell with the inner cavity of air bag assembly, first shell is provided with unidirectional valve piece at the position of liquid outlet chamber, umbrella is installed and arranged with the bottom surface position of air inlet chamber and liquid inlet chamber in first shell, eccentric wheel assembly is installed in third shell, motor assembly output end is connected with eccentric wheel assembly through third shell, and the motor assembly is used to drive eccentric wheel assembly to extrude rubber bowl of air bag assembly to pump.

[0008] Preferably, the air bag assembly includes a bowl liquid cavity and two bowl gas cavities, the first shell is provided with a liquid inlet cavity connecting hole, an air inlet cavity connecting hole and a liquid outlet cavity connecting hole, the liquid inlet cavity connecting hole connects the liquid inlet cavity with the bowl liquid cavity, the air inlet cavity connecting hole connects the air inlet cavity with the bowl gas cavity, and the liquid outlet cavity connecting hole connects the bowl liquid cavity, the bowl gas cavity and the liquid outlet cavity, the umbrella assembly is installed and arranged at the bottom surface of the first shell at the liquid inlet cavity connecting hole and the air inlet cavity connecting hole, and the unidirectional valve piece is installed on the upper surface of the first shell at the liquid outlet cavity connecting hole.

[0009] Preferably, the volume of the bowl gas cavity is consistent, and the volume of the bowl liquid cavity is smaller than that of the bowl gas cavity.

[0010] Preferably, the edge of the umbrella assembly is provided with an annular boss structure protruding towards the first shell, and the annular boss structure is in abutment with the first shell.

[0011] Preferably, the upper cover and the first shell are fixedly arranged by heat pressing and sealing.

[0012] The utility model has the advantages that:

[0013] The motor assembly drives the eccentric wheel assembly to rotate, and the eccentric wheel assembly extrudes the bowl gas cavity and the bowl liquid cavity of the air bag assembly in sequence, the liquid in the liquid inlet cavity pushes the umbrella assembly through the first shell to the bowl liquid cavity, the gas in the air inlet cavity pushes the umbrella assembly through the first shell to the bowl gas cavity, the liquid in the bowl liquid cavity and the gas in the bowl gas cavity push the unidirectional valve piece through the first shell into the liquid outlet cavity for mixing and foaming, and the gas and the liquid are fully mixed in the liquid outlet cavity and then flow out from the liquid outlet nozzle.

[0014] The air bag assembly is provided with three chambers, two of which are skin bowl air cavity chambers with consistent space size, and the space size of the skin bowl liquid cavity is smaller than that of the skin bowl air cavity, so that the foam liquid discharge effect is controllable, the gas ratio is higher, and more foam amount can be generated, and the gas cavity is larger than the liquid cavity in volume, so that faster flow rate can be generated when the gas is compressed.

[0015] The umbrella assembly edge is further provided with a protruding boss, the boss is in contact with the bottom surface of the first shell, and the problem of easy adhesion after the umbrella assembly is in large-area contact with the bottom surface of the first shell is avoided, and the service life of the umbrella assembly is longer. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the three-dimensional structure diagram of the utility model;

[0017] Figure 2 is the explosion structure schematic diagram of the utility model;

[0018] Figure 3 is the first shell liquid outlet cavity, air inlet cavity and liquid inlet cavity structure schematic diagram of the utility model;

[0019] Figure 4 is the first shell bottom surface structure schematic diagram of the utility model;

[0020] Figure 5 is the air bag assembly structure schematic diagram of the utility model;

[0021] Explanation of reference numerals: upper cover 1, liquid inlet nozzle 11, air inlet 12, first shell 2, umbrella assembly 21, boss structure 211, one-way valve plate 22, liquid outlet cavity 23, air inlet cavity 24, liquid inlet cavity 25, liquid inlet cavity connecting hole 26, air inlet cavity connecting hole 27, liquid outlet cavity connecting hole 28, liquid outlet nozzle 29, second shell 3, air bag assembly 31, skin bowl liquid cavity 311, skin bowl air cavity 312, third shell 4, eccentric wheel assembly 41, motor assembly 5, fastening bolt 6. DETAILED DESCRIPTION

[0022] The specific content of the utility model will be described in detail below in combination with the drawings and examples.

[0023] Please refer to Figures 1-5The utility model provides a kind of foam pump that foam liquid is controllable, including upper cover 1, first shell 2, second shell 3, third shell 4, motor assembly 5, eccentric wheel assembly 41, air bag assembly 31, umbrella Ding assembly 21 and check valve piece 22, fastening bolt 6 is sequentially connected with the setting of upper cover 1, first shell 2, second shell 3 and third shell 4, and the bottom end of third shell 4 is fixedly connected with motor, and the upper cover 1 is provided with liquid inlet nozzle 11 and air inlet 12, first shell 2 is outwardly extended and is provided with liquid outlet nozzle 29, and the upper cover 1 and first shell 2 are spaced apart and are provided with liquid outlet chamber 23, air inlet chamber 24 and liquid inlet chamber 25, the liquid outlet nozzle and liquid outlet chamber 23 are connected, air inlet 12 and air inlet chamber 24 are connected, liquid inlet nozzle 11 and liquid inlet chamber 25 are connected, air bag assembly 31 is installed on second shell 3, and the liquid outlet chamber 23, air inlet chamber 24 and liquid inlet chamber 25 pass through first shell 2 and are connected with the inner cavity of air bag assembly 31, and the first shell 2 is provided with check valve piece 22 at the position of liquid outlet chamber 23, and umbrella Ding assembly 21 is installed and arranged on the bottom surface position of air inlet chamber 24 and liquid inlet chamber 25 of first shell 2, eccentric wheel assembly 41 is installed in third shell 4, and the output end of motor assembly 5 passes through third shell 4 and is connected with eccentric wheel assembly 41, and the motor assembly 5 is used to drive eccentric wheel assembly 41 to extrude the rubber bowl of air bag assembly 31 to pump.

[0024] Check valve piece 22 can prevent mixed liquid backflow, and ensure the normal operation of foam pump.

[0025] Further, to realize that motor assembly 5 can drive air bag assembly 31 to pump gas and liquid, the air bag assembly 31 includes a bowl liquid cavity 311 and two bowl gas cavities 312, the first shell 2 is provided with a liquid inlet chamber 25 connecting hole, an air inlet chamber 24 connecting hole and a liquid outlet chamber 23 connecting hole, the liquid inlet chamber 25 connecting hole connects the liquid inlet chamber 25 with the bowl liquid cavity 311, the air inlet chamber 24 connecting hole connects the air inlet chamber 24 with the bowl gas cavity 312, and the liquid outlet chamber 23 connecting hole connects the bowl liquid cavity 311, the bowl gas cavity 312 and the liquid outlet chamber 23, and the umbrella Ding assembly 21 is installed and arranged at the position of the liquid inlet chamber 25 connecting hole and the air inlet chamber 24 connecting hole on the bottom surface of the first shell 2, and the check valve piece 22 is installed on the upper surface of the first shell 2 at the position of the liquid outlet chamber 23 connecting hole.

[0026] Further, to obtain better foam liquid control effect, the volume of the bowl gas cavity 312 is consistent, and the volume of the bowl liquid cavity 311 is smaller than that of the bowl gas cavity 312.

[0027] By setting three chambers (two bowl gas cavities 312 and one bowl liquid cavity 311), and controlling the volume ratio of each chamber, the foam liquid effect is controllable, the gas ratio is higher, and more foam amount can be generated.

[0028] Further, in order to avoid the umbrella assembly 21 and the first shell 2 after a long time contact adhesion, affect the use effect, the edge of the umbrella assembly 21 is provided with an annular boss structure 211 protruding towards the first shell 2, and the annular boss structure 211 is arranged in abutment with the first shell 2.

[0029] Further, in order to obtain better sealing effect, the upper cover 1 and the first shell 2 are arranged in heat pressing sealing and fixed manner.

[0030] The motor assembly 5 of the embodiment rotates to drive the eccentric wheel assembly 41 to rotate, sequentially extruding the skin bowl gas cavity 312 and the skin bowl liquid cavity 311 of the air bag assembly 31, liquid is pushed from the liquid inlet cavity 25 to drive the umbrella assembly 21 to pass through the first shell 2 to the skin bowl liquid cavity 311, and gas is pushed from the gas inlet cavity 24 to drive the umbrella assembly 21 to pass through the first shell 2 to the skin bowl gas cavity 312, the liquid in the skin bowl liquid cavity 311 and the gas in the skin bowl gas cavity 312 pass through the first shell 2 to drive the one-way valve piece 22 to enter the liquid outlet cavity 23 to mix and foam, and the gas and the liquid are mixed sufficiently in the liquid outlet cavity 23 and then flow out from the liquid outlet nozzle 29.

[0031] The air bag assembly 31 of the embodiment is provided with three chambers, two skin bowl gas cavities 312 have the same chamber space size, and the skin bowl liquid cavity 311 has a smaller space size than the skin bowl gas cavity 312, so that the foam liquid outlet effect is controllable, the gas ratio is higher, and more foam amount can be generated, the gas cavity is larger than the liquid cavity in volume, and faster flow rate can be generated when the gas is compressed.

[0032] The edge of the umbrella assembly 21 is further provided with a ring of protruding boss structures 211, the boss structures 211 abut against the bottom surface of the first shell 2, the problem of easy adhesion after a large area of the umbrella assembly 21 contacts the bottom surface of the first shell 2 is avoided, and the service life of the umbrella assembly 21 is longer.

[0033] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model and are not limited, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the utility model, and all should be covered in the claim scope of the utility model.

[0034] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the mechanical parts and equipment adopt the conventional types in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and details are not described here.

[0035] In the description of the utility model, unless another definite provision and limit, term " install " " link " " connect " " fix " should make broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection;Can be direct connection, also can be connected through the intermediate medium, can be two element internal communication or two element mutual action relation. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A foam pump with controllable foam output, characterized in that The utility model provides a kind of liquid pump, including upper cover, first shell, second shell, third shell, motor assembly, eccentric wheel assembly, air bag assembly, umbrella Ding assembly and check valve piece, fastening bolt is sequentially connected and arranged through upper cover, first shell, second shell and third shell, third shell bottom end is fixedly connected with motor, and the upper cover is provided with liquid inlet nozzle and air inlet, first shell is provided with liquid outlet nozzle and extends outward, the upper cover and first shell are spaced apart and provided with liquid outlet chamber, air inlet chamber and liquid inlet chamber, the liquid outlet nozzle and liquid outlet chamber are connected and arranged, air inlet and air inlet chamber are connected and arranged, liquid inlet nozzle and liquid inlet chamber are communicated, second shell is installed with air bag assembly, and the liquid outlet chamber, air inlet chamber and liquid inlet chamber are connected and arranged through first shell with the inner cavity of air bag assembly, first shell is provided with check valve piece at liquid outlet chamber, umbrella Ding assembly is installed and arranged on the bottom surface position of first shell in air inlet chamber and liquid inlet chamber, third shell is installed with eccentric wheel assembly, motor assembly output end is connected with eccentric wheel assembly through third shell, and the motor assembly is used to drive eccentric wheel assembly to extrude rubber bowl of air bag assembly and pump.

2. A foam pump with controllable foam output according to claim 1, characterized in that The air bag assembly includes a bowl liquid cavity and two bowl gas cavities, the first shell is provided with liquid inlet cavity connecting hole, air inlet cavity connecting hole and liquid outlet cavity connecting hole, the liquid inlet cavity connecting hole communicates the liquid inlet cavity with the bowl liquid cavity, the air inlet cavity connecting hole communicates the air inlet cavity with the bowl gas cavity, and the liquid outlet cavity connecting hole communicates the bowl liquid cavity, the bowl gas cavity and the liquid outlet cavity, umbrella Ding assembly is installed and arranged at the bottom surface of first shell at liquid inlet cavity connecting hole and air inlet cavity connecting hole, and check valve piece is installed on the upper surface of first shell at liquid outlet cavity connecting hole.

3. A foam pump with controllable foam output according to claim 2, characterized in that The bowl gas cavity has the same volume, and the bowl liquid cavity has a smaller volume than the bowl gas cavity.

4. A foam pump with controllable foam output according to claim 1, characterized in that The edge of the umbrella Ding assembly is provided with an annular boss structure protruding towards the first shell, and the annular boss structure is in contact with the first shell.

5. A foam pump with controllable foam output according to claim 1, wherein, The upper cover and the first shell are fixedly arranged by heat pressing and sealing.

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