CN220315897U - Full plastic pressing pump - Google Patents

Abstract

The application relates to an all-plastic pressing pump, which belongs to the technical field of pressing pumps. The full-plastic pressing pump comprises a pump body, a pressing piece, a transfusion tube, a one-way valve and a cover for installing the pump body, wherein a containing cavity for filling liquid is formed in the pump body, and the pressing piece is communicated with the containing cavity; the infusion tube comprises a liquid inlet tube arranged on the sleeve cover and communicated with the container and a liquid discharge tube arranged on the pump body and used for discharging liquid, and the one-way valve assembly comprises a first one-way valve body used for controlling liquid in the container to be sucked into the containing cavity and a second one-way valve body used for controlling liquid in the containing cavity to be discharged. The full-plastic pressing pump has the advantages of simple structure and simple assembly.

Description

Full plastic pressing pump

Technical Field

The application relates to the technical field of pressing pumps, in particular to an all-plastic pressing pump.

Background

The application of the pressing pump in daily life is very wide, such as shampoo, facial cleanser, jam and the like, and brings convenience to life.

Existing compression pumps typically include a pump body, a piston, a spring, tubing, and the like. The user firstly discharges the gas in the pump body by manually pressing the pump body, so that the liquid in the container is sucked into the pump body; and then pressing the pump body again to spray the liquid in the pump body from the nozzle, loosening the pump body, and filling the liquid in the container into the pump body through the pipeline by the generated negative pressure for the next pressing and discharging.

The structure of the pressing pump is complex, and the pressing pump generally comprises plastic, metal, glass and other parts, and the assembling process is complex.

Disclosure of Invention

In order to simplify the structure of the pressing pump and facilitate the assembly of the pressing pump, the application provides an all-plastic pressing pump.

The application provides an all-plastic pump that presses adopts following technical scheme:

the full-plastic pressing pump comprises a pump body, a pressing piece, a transfusion tube, a one-way valve and a cover for installing the pump body, wherein a containing cavity for filling liquid is formed in the pump body, and the pressing piece is communicated with the containing cavity; the infusion tube comprises a liquid inlet tube arranged on the sleeve cover and communicated with the container and a liquid discharge tube arranged on the pump body and used for discharging liquid, and the one-way valve assembly comprises a first one-way valve body used for controlling liquid in the container to be sucked into the containing cavity and a second one-way valve body used for controlling liquid in the containing cavity to be discharged.

Through adopting above-mentioned technical scheme, when using foretell press the pump, press the clamp earlier for the gaseous quilt of holding intracavity is discharged, and the liquid in the container fills the holding chamber of having discharged the gas through first check valve body, presses once more, and the liquid in the holding chamber will be discharged through the second check valve body, presses the clamp to resume deformation back, and the liquid in the container is inhaled the holding intracavity once more, and this application presses the constitution structure of pump and is made for plastics material, compares in prior art, and the structure is comparatively simple, and equipment during production is comparatively convenient.

Optionally, the first check valve body includes the valve ring and set up in the valve piece in the valve ring, the valve piece has the connection the linkage segment of valve ring, just the valve piece with there is the clearance of beating in the valve ring inner wall.

Through adopting above-mentioned technical scheme, disclose the concrete structure of first check valve body, through the setting in clearance of beating, when pressing the piece and resume deformation, the holding intracavity produces negative pressure, makes the atmospheric pressure in the container jack-up the valve block to make liquid can flow to the holding intracavity through first check valve body.

Optionally, the cover is provided with a first mounting groove for arranging the first one-way valve body, the bottom wall of the first mounting groove is provided with a liquid inlet communicated with the container, and the outer diameter of the valve plate is larger than the inner diameter of the liquid inlet.

Through adopting above-mentioned technical scheme, first check valve body arranges in first mounting groove, and the valve block closes the feed liquor hole lid, and when the extrusion press piece, the atmospheric pressure of holding intracavity increases for compress tightly the valve block laminating at the tank bottom of first mounting groove, carry out the shutoff to the feed liquor hole.

Optionally, the outer wall of the valve ring is provided with a positioning part, and the sleeve is provided with a positioning surface for the positioning part to abut against in the first mounting groove.

Through adopting above-mentioned technical scheme, the cooperation of location portion and locating surface has increased the area of contact of valve ring and first mounting groove inner wall for stability after the arrangement of valve ring is more ideal.

Optionally, a pressing part for pressing the valve ring is disposed at the opening of the first mounting groove.

Through adopting above-mentioned technical scheme, the setting of compressing tightly the portion can play the effect of compressing tightly the top of valve ring, has reduced when pressing the pump and has emptyd or invert, and the probability that first check valve body breaks away from in the first mounting groove further improves first check valve body's stability.

Optionally, the inner wall of the pressing part is provided with a guiding cambered surface for guiding the valve ring to be inserted.

Through adopting above-mentioned technical scheme, the setting of direction cambered surface, when carrying out the installation of first check valve body, the tip butt of valve ring is on compressing tightly the portion inner wall, through the setting of direction cambered surface, can be convenient for insert the valve ring in the first mounting groove.

Optionally, the pump body is provided with the confession the second mounting groove of second check valve body installation, the second check valve body with the cooperation mode in second mounting groove is unanimous with the cooperation mode in first check valve body and first mounting groove, the diapire in second mounting groove has the intercommunication the flowing back hole in holding chamber.

Through adopting above-mentioned technical scheme, the cooperation mode of second check valve body and the pump body adopts foretell first check valve body and sheathed tube cooperation mode, and the difference lies in, when pressing the button piece, the atmospheric pressure of holding intracavity increases, and the valve block of second check valve body is jacked for the liquid in the holding chamber is discharged from the apopore, loosens the button piece after, and the holding intracavity portion is negative pressure state, and external atmospheric pressure compresses tightly the valve block, makes the valve block carry out the shutoff to the apopore.

Optionally, the pressing piece is inserted in the pump body, and the side wall of the pressing piece is provided with telescopic lines convenient for compression.

Through adopting above-mentioned technical scheme, the setting of flexible line for the user of being convenient for presses the presser, carries out axial direction's flexible with the presser, and is better to the compression effect of holding intracavity gas.

Optionally, the tip cover of fluid-discharge tube is equipped with the shield, the shield includes the lantern ring, the lid and connects the lantern ring with the connecting strip of lid.

Through adopting above-mentioned technical scheme, the setting of shield can play sealed jam effect to the tip of fluid-discharge tube, reduces the probability that external dust enters into in the fluid-discharge tube.

Optionally, the side wall of the liquid discharge pipe close to the opening is provided with a limiting ring for limiting the collar from falling out.

Through adopting above-mentioned technical scheme, the setting of spacing collar on the fluid-discharge tube can play spacing effect to the lantern ring, has reduced the probability that the shield breaks away from the fluid-discharge tube.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the full-plastic pressing pump comprises a pump body, a pressing piece, a transfusion tube, a one-way valve and a sleeve cover, and has the effects of simple structure and convenience for assembly by assembly staff compared with the prior art;

2. according to the valve plate, through the arrangement of the jumping gap, when negative pressure exists in the accommodating cavity, the valve plate can be pushed open by gas in the container, so that liquid is supplemented into the accommodating cavity;

3. the utility model discloses a setting through compressing tightly the portion can play the effect of compressing tightly to the top of valve ring, improves the stability of one-way frame spare in the mounting groove.

Drawings

Fig. 1 is a schematic overall structure of embodiment 1.

Fig. 2 is a schematic overall sectional view of example 1.

Fig. 3 is an enlarged partial schematic view at a in fig. 2.

Fig. 4 is a schematic structural view of the first check valve body in the present application.

Fig. 5 is a partial cross-sectional view of the second check valve body of the present application after installation.

Fig. 6 is a schematic view of the structure of the dust cap in embodiment 2.

Reference numerals illustrate: 1. a pump body; 11. a receiving chamber; 12. a first pump housing; 121. a second mounting groove; 122. a plug-in groove; 1211. a liquid discharge hole; 13. a second pump housing; 2. a pressing member; 21. a telescopic line; 22. a pressing chamber; 3. an infusion tube; 31. a liquid inlet pipe; 32. a liquid discharge pipe; 321. a limiting ring; 33. a dust cover; 331. a collar; 3311. a pressing protrusion; 3312. a fracture; 332. a cover body; 3321. a pulling piece; 333. a connecting strip; 4. a one-way valve assembly; 41. a first one-way valve body; 411. a valve ring; 4111. a positioning part; 412. a valve plate; 413. a connection section; 414. a runout gap; 42. a second one-way valve body; 5. a cover; 51. a first collar; 52. a second collar; 53. a sealing plate; 54. a communication pipe; 541. a first mounting groove; 5411. a positioning surface; 5412. a liquid inlet hole; 5413. a pressing part; 5414. a guide cambered surface; 55. and a vent hole.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses an all-plastic pressing pump.

Example 1:

referring to fig. 1 and 2, an all-plastic pressure pump includes a pump body 1, a pressing piece 2 provided at the top of the pump body 1, a fluid pipe 3 communicating with the pump body 1, a check valve assembly 4 for controlling inflow or outflow of a liquid, and a cap 5 for mounting the pump body 1. The pressing pump is mainly applied to pressing output of jam.

The pump body 1 is internally provided with a containing cavity 11 for filling and storing liquid, and the containing cavity 11 is communicated with the pressing piece 2 and a container filled with liquid in advance. The pump body 1 comprises a first pump shell 12 inserted into the cover 5 and a second pump shell 13 inserted into the top of the first pump shell 12. The second pump shell 13 is inserted into the first pump shell 12 and then fixed by an adhesive.

The cover 5 is a stepped annular cover body, and the cover 5 comprises a first collar 51, a second collar 52 and a sealing disc 53 arranged at the bottom of the inner wall of the first collar 51. The outer diameter of the first collar 51 is smaller than the outer diameter of the second collar 52. The first pump casing 12 is inserted into the inner wall of the first collar 51, the end of the first pump casing 12 abuts against the end face of the sealing disc 53, and the second collar 52 is used for being in threaded connection with the container. A communication pipe 54 for communicating the accommodating chamber 11 and the container is integrally provided at the central axis of the sealing plate 53. Wherein, the cover 5 is formed with four vent holes 55 for balancing the internal and external air pressure between the outer wall of the sealing disc 53 and the inner wall of the collar 331, and the four vent holes 55 are uniformly arranged at intervals in the circumferential direction.

The pressing piece 2 is a cylindrical shell capable of axially stretching and contracting and is of an organ cover structure. The pressing member 2 has therein a pressing chamber 22 communicating with the accommodating chamber 11. The pressing piece 2 is inserted and installed in the second pump shell 13 in a downward opening mode. The outer wall of the pressing piece 2 is provided with the telescopic lines 21 for axial expansion, when a user presses the pressing piece 2, the pressing piece 2 can be compressed in the axial direction, and the uncompressed state can be automatically reset when the pressing piece 2 is released.

The infusion tube 3 includes a liquid inlet tube 31 for delivering the liquid in the container to the accommodating chamber 11, and a liquid outlet tube 32 for delivering the liquid in the accommodating chamber 11 to the outside. The liquid inlet pipe 31 is inserted and fixed at one end of the communication pipeline 54 far away from the pump body 1. The drain pipe 32 is inserted and fixed to the first pump casing 12, and the first pump casing 12 has an insertion groove 122 into which the drain pipe 32 is inserted.

Referring to fig. 2 and 3, the check valve assembly 4 includes a first check valve body 41 disposed at one end of the receiving chamber 11 in the communication pipe 54, and a second check valve body 42 disposed on the first pump body 1. The first one-way valve 41 is used for controlling the liquid in the container to be unidirectionally input into the accommodating cavity 11, and the second one-way valve 42 is used for controlling the liquid in the accommodating cavity 11 to be unidirectionally output to the outside. The first check valve body 41 and the second check valve body 42 are identical in structure.

Referring to fig. 4, the first check valve body 41 includes a valve ring 411 and a valve plate 412 coupled to an inner wall of the valve ring 411, the valve plate 412 having a coupling section 413 coupled to the inner wall of the valve ring 411. The valve ring 411, the valve plate 412 and the connecting section 413 are all integrally injection molded. The valve ring 411 is formed in a stepped annular shape as a whole, and the valve plate 412 is positioned at the end of the valve ring 411 having a smaller outer diameter. The outer diameter of the valve plate 412 is smaller than the inner diameter of the valve ring 411, so that a jumping gap 414 exists between the outer wall of the valve plate 412 and the inner wall of the valve ring 411, and the valve plate 412 can jump axially in the valve ring 411 to realize the conveying or blocking of liquid.

The communication pipe 54 has a first mounting groove 541 in which the first check valve body 41 is disposed, the first mounting groove 541 being adapted to the first check valve body 41. One end of the valve ring 411 having a larger outer diameter is a positioning portion 4111, and the communication pipe 54 is provided with a positioning surface 5411 for positioning the positioning portion 4111 in the first mounting groove 541. The tank bottom of the first installation tank 541 is provided with a liquid inlet 5412, the valve plate 412 is abutted against the tank bottom of the first installation tank 541, and the outer diameter of the valve plate 412 is larger than the inner diameter of the liquid inlet 5412.

The first mounting groove 541 has a pressing portion 5413 at a top opening thereof for pressing the top surface of the valve ring 411. The pressing portion 5413 is annular in shape as a whole, and has a guide arc surface 5414 for guiding insertion of the valve ring 411 on the inside of the axis toward the first mounting groove 541. After the valve ring 411 is inserted into the first mounting groove 541, the pressing portion 5413 performs limit pressing on the top surface of the valve ring 411, so that the probability of the valve ring 411 being separated from the first mounting groove 541 is reduced.

The first pump case 12 has a second mounting groove 121 in which the second check valve body 42 is mounted, and a drain hole 1211 is formed in the bottom wall of the second mounting groove 121. The mounting engagement of the second check valve body 42 and the first pump casing 12 is generally identical to the mounting engagement of the first check valve body 41 and the communication pipe 54, except for the following: the second check valve body 42 is horizontally arranged; the second check valve body 42 is located at a side end surface of the drain hole 1211 facing away from the accommodating chamber 11, and the first check valve body 41 is located at a side end surface of the liquid inlet hole 5412 facing toward the accommodating chamber 11.

According to fig. 1 and 5, the compression of the pressing piece 2 by the user causes the one-way valve assembly 4 to have two states of liquid discharge and liquid inlet, when the pressing piece 2 is compressed, the air pressure in the accommodating cavity 11 is increased, the valve plate 412 of the first one-way valve 41 is compressed, the first one-way valve 41 is in a closed state, the valve plate 412 of the second one-way valve 42 is pushed outwards, the second one-way valve 42 is in an open state, and the air or liquid in the accommodating cavity 11 is discharged, and is in a liquid discharge state at the moment;

after the pressing piece 2 is loosened, the pressing piece 2 is restored to deform, negative pressure is generated in the accommodating cavity 11 due to the fact that gas and liquid are discharged, the valve plate 412 of the second one-way valve body 42 is pressed on the bottom of the second mounting groove 121 by the outside air, the second one-way valve body 42 is in a closed state, the valve plate 412 of the first one-way valve body 41 is pushed open by the air pressure in the container, the first one-way valve body 41 is in an open state, and liquid in the container is supplemented to the accommodating cavity 11, and is in a liquid inlet state at the moment.

Example 2:

this embodiment is identical to embodiment 1 in all plastic compression pump except for the difference in structure of the liquid discharge pipe 32.

Referring to fig. 1 and 6, a dust cap 33 for closing the opening of the drain pipe 32 is provided at the end of the drain pipe 32. The dust cap 33 includes a collar 331 fitted over the drain pipe 32, a cap body 332 for covering the opening of the drain pipe 32, and a connecting strip 333 connecting the collar 331 and the cap body 332. Collar 331, cover 332 and connecting strip 333 are all integrally provided. The pressing pump of this application is used on the jam, therefore the setting of shield 33 can reduce the probability that external dust and mosquito enter into in the fluid-discharge tube 32.

The inner wall of the collar 331 is circumferentially provided with a plurality of pressing protrusions 3311 for pressing the outside of the liquid discharge tube 32 so that the stability of the collar 331 at the liquid discharge tube 32 is improved. The outer side of the end of the drain pipe 32 is provided with a limiting ring 321 for limiting the escape of the collar 331, and the outer diameter of the limiting ring 321 is larger than that of the collar 331. The collar 331 is further provided with a break 3312, so that a user can pull the collar 331 towards two sides through the break 3312, and then sleeve the collar 331 on the liquid discharge tube 32, thereby facilitating the installation of the collar 331.

The cover 332 is integrally provided with a pulling piece 3321 at one end far from the connecting strip 333, so as to facilitate the user to pull the cover 332 away from the outlet of the liquid discharge tube 32.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The full-plastic pressing pump is characterized by comprising a pump body (1), a pressing piece (2), a transfusion tube (3), a one-way valve assembly (4) and a sleeve cover (5) for installing the pump body (1), wherein a containing cavity (11) for filling liquid is arranged in the pump body (1), and the pressing piece (2) is communicated with the containing cavity (11); the infusion tube (3) comprises a liquid inlet tube (31) which is arranged on the cover (5) and is communicated with the container, and a liquid outlet tube (32) which is arranged on the pump body (1) and is used for discharging liquid, and the one-way valve assembly (4) comprises a first one-way valve body (41) which is used for controlling liquid in the container to be sucked into the accommodating cavity (11) and a second one-way valve body (42) which is used for controlling liquid in the accommodating cavity (11) to be discharged.

2. An all plastic pressure pump as claimed in claim 1, characterized in that the first one-way valve body (41) comprises a valve ring (411) and a valve plate (412) arranged in the valve ring (411), the valve plate (412) has a connecting section (413) connected with the valve ring (411), and a jump gap (414) exists between the valve plate (412) and the inner wall of the valve ring (411).

3. An all-plastic pressure pump according to claim 2, characterized in that the cover (5) is provided with a first mounting groove (541) for the first one-way valve body (41) to be arranged, the bottom wall of the first mounting groove (541) is provided with a liquid inlet (5412) for communicating with a container, and the outer diameter of the valve plate (412) is larger than the inner diameter of the liquid inlet (5412).

4. A full-plastic pressure pump as claimed in claim 3, wherein the outer wall of the valve ring (411) has a positioning portion (4111), and the cover (5) is provided with a positioning surface (5411) for the positioning portion (4111) to abut on in the first mounting groove (541).

5. A full plastic compression pump as claimed in claim 3, characterised in that the opening of the first mounting groove (541) is provided with a compression portion (5413) for compressing the valve ring (411).

6. An all plastic compression pump as claimed in claim 5, characterized in that the compression portion (5413) has a guiding cambered surface (5414) guiding the insertion of the valve ring (411).

7. An all-plastic pressure pump as claimed in claim 6, wherein the pump body (1) is provided with a second mounting groove (121) for mounting the second check valve body (42), the second check valve body (42) and the second mounting groove (121) are matched with the first check valve body (41) and the first mounting groove (541), and the bottom wall of the second mounting groove (121) is provided with a drain hole (1211) communicated with the accommodating cavity (11).

8. The full-plastic pressing pump according to claim 1, wherein the pressing piece (2) is inserted into the pump body (1), and the side wall of the pressing piece (2) is provided with telescopic lines (21) which are convenient for axial compression.

9. An all-plastic pressure pump as claimed in claim 1, characterized in that the end of the drain pipe (32) is sleeved with a dust cover (33), the dust cover (33) comprising a collar (331), a cover body (332) and a connecting strip (333) connecting the collar (331) and the cover body (332).

10. An all plastic compression pump as claimed in claim 9, characterized in that the side wall of the drain pipe (32) adjacent to the opening is provided with a stop collar (321) for limiting the escape of the collar (331).