CN220333492U - Press pump - Google Patents

Abstract

The utility model discloses a pressing pump, comprising: the bottle body is provided with a one-way valve assembly which can be communicated with the inner cavity of the bottle body; the pressing head is connected with the one-way valve assembly, the pressing head is provided with an injection assembly communicated with the output end of the one-way valve assembly, and the pressing head moves relative to the bottle body to communicate the inner cavity of the bottle body, the one-way valve assembly and the injection assembly; the elastic lifting mechanism is arranged in the inner cavity of the bottle body and is used for driving the fluid in the bottle body to move towards the one-way valve assembly so as to be discharged from the jetting assembly. Above press the pump and set up elasticity lifting mechanism in the inner chamber of bottle, utilize elasticity lifting mechanism to outwards discharge from the injection subassembly through the check valve subassembly with the fluid in the bottle, need not to input higher pressure's fluid in the bottle, reduce the pressure difference between the inner chamber of bottle and the atmospheric pressure to improve the security performance, reduce the risk and the injury of pressing the pump explosion, also be favorable to the fluid in the bottle to empty completely, avoid extravagant.

Description

Press pump

Technical Field

The present utility model relates to a push pump.

Background

In the prior art, some pressing pumps input high-pressure fluid into a bottle body, and when a pressing head is pressed, a one-way valve is opened, so that the high-pressure fluid can be output outwards along the one-way valve. Where the pressure differential between the high pressure fluid and atmospheric pressure is large, safety concerns may arise in some scenarios. For example, in an aircraft, such a pressure pump is prone to explosion due to low ambient air pressure and low temperature.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a pressing pump which reduces the pressure in a bottle body to improve the safety.

A pressing pump according to an embodiment of the present utility model includes: the bottle body is provided with a one-way valve assembly which can be communicated with the inner cavity of the bottle body; the pressing head is connected with the one-way valve assembly, the pressing head is provided with an injection assembly communicated with the output end of the one-way valve assembly, and the pressing head moves relative to the bottle body to communicate the inner cavity of the bottle body, the one-way valve assembly and the injection assembly; the elastic lifting mechanism is arranged in the inner cavity of the bottle body and used for driving the fluid in the bottle body to move towards the one-way valve assembly so as to be discharged from the spraying assembly.

The pressing pump provided by the embodiment of the utility model has at least the following beneficial effects:

above press the pump and set up elasticity lifting mechanism in the inner chamber of bottle, utilize elasticity lifting mechanism to outwards discharge from the injection subassembly through the check valve subassembly with the fluid in the bottle, need not to input higher pressure's fluid in the bottle, reduce the pressure difference between the inner chamber of bottle and the atmospheric pressure to improve the security performance, reduce the risk and the injury of pressing the pump explosion, also be favorable to the fluid in the bottle to empty completely, avoid extravagant.

In some embodiments of the present utility model, the elastic lifting mechanism includes a piston member slidably disposed in the inner cavity of the bottle body, the piston member divides the inner cavity of the bottle body into an upper half cavity and a lower half cavity, the upper half cavity is communicated with the check valve assembly, and an elastic member driving the piston member to move upwards is disposed in the lower half cavity to transfer the fluid in the upper half cavity to the check valve assembly.

In some embodiments of the present utility model, the inner cavity of the bottle body is cylindrical, the piston member comprises a circular plate portion, and a sealing ring matched with the inner peripheral wall of the bottle body is arranged on the outer periphery of the circular plate portion, and the vertical section of the sealing ring is hyperbolic.

In some embodiments of the present utility model, a limiting sink groove is defined between the lower surface of the circular plate portion and the inner peripheral wall of the sealing ring, a positioning groove opposite to the limiting sink groove is provided on the inner bottom surface of the bottle body, the elastic member is a spring member, and two ends of the spring member respectively abut against the limiting sink groove and the positioning groove.

In some embodiments of the present utility model, a plurality of supporting ribs are radially disposed on the lower surface of the circular plate portion, bent portions bent downward are disposed at the ends of the supporting ribs, the upper ends of the spring members are abutted against the supporting ribs, and the bent portions are abutted against the outer periphery of the upper ends of the spring members to clamp the spring members.

In some embodiments of the utility model, the circular plate portion, the support rib and the seal ring are of unitary rubber construction.

In some embodiments of the present utility model, the bottle body includes a straight tube, an inner diameter of the straight tube is matched with an outer diameter of the sealing ring, a bottleneck is formed at an upper end of the straight tube, a bottle bottom is connected to a lower end of the straight tube, the bottle bottom and the straight tube are in a split structure, the bottle bottom has a first annular wall embedded in an inner peripheral wall of a lower portion of the straight tube and a second annular wall concentrically arranged with the first annular wall, and the positioning groove is defined between the second annular wall and the first annular wall.

In some embodiments of the present utility model, a locking cap is screwed on the bottle neck, a through hole is formed in the middle of the locking cap, the one-way valve assembly comprises a valve body fixed between the bottle neck and the locking cap, a movable cavity communicated with an inner cavity of the bottle body is formed in the valve body, a valve rod is movably arranged in the movable cavity, the upper portion of the valve rod penetrates through the through hole, the push head is connected with the upper end of the valve rod, a fluid channel is formed in the interior of the valve rod, a through hole communicated with the fluid channel is formed in the side portion of the valve rod, a sealing element capable of closing the through hole is arranged on the valve body, a spring driving element is arranged between the lower end of the valve rod and the movable cavity, the spring driving element can drive the valve rod to move upwards to enable the sealing element to close the through hole, and the push head drives the valve rod to move downwards to enable the through hole to be communicated with the movable cavity and the fluid channel.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic internal cross-sectional view of a check valve assembly of one embodiment of a compression pump of the present utility model in a closed state;

FIG. 2 is a schematic internal cross-sectional view of the embodiment of FIG. 1 with the one-way valve assembly in an open state and the fluid within the bottle being evacuated;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 1;

fig. 4 is a schematic view of an embodiment of a piston member.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 and 2, a pressing pump of the present utility model includes: the bottle body 100, the bottle body 100 is provided with a one-way valve assembly 200 which can be communicated with the inner cavity of the bottle body 100; the pressing head 300 is connected with the one-way valve assembly 200, the spraying assembly 400 communicated with the output end of the one-way valve assembly 200 is arranged on the pressing head 300, and the pressing head 300 moves relative to the bottle body 100 to communicate the inner cavity of the bottle body 100, the one-way valve assembly 200 and the spraying assembly 400; the elastic lifting mechanism 500 is disposed in the inner cavity of the bottle body 100, and is used for driving the fluid in the bottle body 100 to move towards the check valve assembly 200 to be discharged from the spraying assembly 400.

The above push pump sets up elasticity lifting mechanism 500 in the inner chamber of bottle 100, utilizes elasticity lifting mechanism 500 to outwards discharge the fluid in the bottle 100 from jetting assembly 400 through check valve assembly 200, need not to input higher pressure's fluid in the bottle 100, reduces the pressure difference between the inner chamber of bottle 100 and the atmospheric pressure to improve the security performance, reduce the risk and the injury of push pump explosion, also be favorable to the fluid in the bottle 100 to empty completely, avoid extravagant. In addition, when the button 300 is pressed downward, the check valve assembly 200 is opened, and the fluid in the bottle body 100 can be continuously discharged under the action of the elastic lifting mechanism 500, so that the output of the fluid is more uniform than that of the conventional mode.

Referring to fig. 1 and 2, in some embodiments of the present utility model, the elastic lifting mechanism 500 includes a piston member 510 slidably disposed in the inner cavity of the bottle body 100, the piston member 510 dividing the inner cavity of the bottle body 100 into an upper half cavity and a lower half cavity, the upper half cavity being in communication with the check valve assembly 200, and the lower half cavity being provided with an elastic member 520 therein for driving the piston member 510 to move upward to transfer fluid in the upper half cavity to the check valve assembly 200. It will be appreciated that the pressure within the bottle 100 is greater than the external atmosphere, and that when the check valve assembly 200 is closed, the pressure of the fluid in the upper chamber acting on the piston member 510 is balanced by the force of the elastic member 520 acting upwardly on the piston member 510, and that when the check valve assembly 200 is opened, the fluid is discharged outwardly, and the elastic member 520 assists the piston member 510 to move upwardly. The elastic lifting mechanism 500 is simple in structure, low in cost and convenient to produce and process.

Referring to fig. 4, in some embodiments of the present utility model, the inner cavity of the bottle body 100 is cylindrical, the piston member 510 includes a circular plate portion 511, and the outer circumference of the circular plate portion 511 is provided with a sealing ring 512 that is matched with the inner circumferential wall of the bottle body 100, and the sealing ring 512 has a hyperbolic shape in vertical section. The piston member 510 with the above shape is matched with the inner cavity of the cylindrical bottle body 100 to facilitate the elastic lifting mechanism 500 to move up and down smoothly, so that the fluid in the bottle body 100 is discharged, and the hyperbolic sealing ring 512 is matched with the inner peripheral wall of the bottle body 100 to achieve a good sealing effect.

Referring to fig. 2 and 4, in some embodiments of the present utility model, in order to ensure stability of the lifting movement of the piston member 510, the limiting elastic member 520 is relatively moved, a limiting sink 513 is defined between the lower surface of the circular plate portion 511 and the inner peripheral wall of the sealing ring 512, a positioning groove 123 opposite to the limiting sink 513 is provided on the inner bottom surface of the bottle body 100, the elastic member 520 is a spring member, and two ends of the spring member respectively abut against the limiting sink 513 and the positioning groove 123.

Referring to fig. 4, in some embodiments of the present utility model, in order to further prevent the spring member from moving in the radial direction thereof, the lower surface of the circular plate portion 511 is provided with a plurality of supporting ribs 514 radially distributed, the end portions of the supporting ribs 514 are provided with bending portions 515 bent downward, the upper ends of the spring member are abutted against the supporting ribs 514, and the plurality of bending portions 515 are abutted against the outer circumference of the upper ends of the spring member to clamp the spring member.

In some embodiments of the present utility model, the circular plate portion 511, the support ribs 514 and the seal ring 512 are an integral rubber structure in order to simplify the production process.

Referring to fig. 1 and 2, in some embodiments of the present utility model, the bottle body 100 includes a straight tube 110, an inner diameter of the straight tube 110 is sized to be matched with an outer diameter of a sealing ring 512, a bottleneck 111 is formed at an upper end of the straight tube 110, a bottle bottom 120 is connected to a lower end of the straight tube 110, the bottle bottom 120 and the straight tube 110 are in a split structure, the bottle bottom 120 has a first annular wall 121 inserted into an inner circumferential wall of a lower portion of the straight tube 110 and a second annular wall 122 concentrically arranged with the first annular wall 121, and a positioning groove 123 is defined between the second annular wall 122 and the first annular wall 121. It should be noted that the straight tube 110 and the bottleneck portion 111 may be obtained by integral injection molding, and then the bottle bottom 120 may be obtained by injection molding, and the first annular wall 121 may be inserted into the inner peripheral wall of the lower portion of the straight tube 110 to achieve the pre-fixing effect of the straight tube 110 and the bottle bottom 120, and then fixed by a welding machine or bonding.

Referring to fig. 3, in some embodiments of the present utility model, a locking cap 130 is screwed to a bottle neck 111, a through hole 131 is formed in the middle of the locking cap 130, a check valve assembly 200 includes a valve body 210 fixed between the bottle neck 111 and the locking cap 130, a movable chamber 211 communicating with an inner cavity of the bottle body 100 is formed in the valve body 210, a suction inlet 212 communicating with the inner cavity of the bottle body 100 is formed in the bottom of the movable chamber 211, a valve rod 220 is movably formed in the movable chamber 211, an upper portion of the valve rod 220 is penetrated through the through hole 131, a button 300 is connected to an upper end of the valve rod 220, a fluid channel 221 is formed in an inner portion of the valve rod 220, a through hole 222 communicating with the fluid channel 221 is formed in a side portion of the valve rod 220, a sealing member 230 capable of closing the through hole 222 is formed in the valve body 210, a spring driving member 240 is formed between a lower end of the valve rod 220 and the movable chamber 211, and the spring driving member 240 is capable of driving the valve rod 220 to move upward to close the through hole 222, and the button 300 is driven to move downward to cause the valve rod 220 to communicate the movable chamber 211 with the fluid channel 221. It should be noted that, in the state that the button 300 is extended upward, the spring driver 240 drives the valve rod 220 to move upward so that the sealing member 230 closes the through hole 222, when the user presses the button 300 downward, the spring driver 240 is compressed, the through hole 222 and the sealing member 230 are dislocated, and the fluid in the bottle body 100 can pass through the movable chamber 211, the through hole 222, the fluid channel 221 and the spraying assembly 400 in sequence.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (8)

1. A push pump, comprising:

the bottle comprises a bottle body (100), wherein a one-way valve assembly (200) which can be communicated with the inner cavity of the bottle body (100) is arranged on the bottle body (100);

a pressing head (300) connected with the one-way valve assembly (200), wherein the pressing head (300) is provided with an injection assembly (400) communicated with the output end of the one-way valve assembly (200), and the pressing head (300) moves relative to the bottle body (100) to communicate the inner cavity of the bottle body (100), the one-way valve assembly (200) and the injection assembly (400);

the elastic lifting mechanism (500) is arranged in the inner cavity of the bottle body (100) and is used for driving the fluid in the bottle body (100) to move towards the one-way valve assembly (200) so as to be discharged from the spraying assembly (400).

2. A push pump according to claim 1, wherein:

the elastic lifting mechanism (500) comprises a piston member (510) which is arranged in the inner cavity of the bottle body (100) in a sliding mode, the inner cavity of the bottle body (100) is divided into an upper half cavity and a lower half cavity by the piston member (510), the upper half cavity is communicated with the one-way valve assembly (200), and an elastic member (520) which drives the piston member (510) to move upwards so as to transfer fluid in the upper half cavity to the one-way valve assembly (200) is arranged in the lower half cavity.

3. A push pump according to claim 2, wherein:

the inner cavity of the bottle body (100) is cylindrical, the piston piece (510) comprises a circular plate part (511), a sealing ring (512) matched with the inner peripheral wall of the bottle body (100) is arranged on the outer periphery of the circular plate part (511), and the vertical section of the sealing ring (512) is hyperbolic.

4. A compression pump according to claim 3, wherein:

limiting sinking grooves (513) are defined between the lower surface of the circular plate portion (511) and the inner peripheral wall of the sealing ring (512), positioning grooves (123) opposite to the limiting sinking grooves (513) are formed in the inner bottom surface of the bottle body (100), the elastic pieces (520) are spring pieces, and two ends of each spring piece respectively abut against the corresponding limiting sinking groove (513) and the corresponding positioning groove (123).

5. A push pump according to claim 4, wherein:

the lower surface of circular plate portion (511) is equipped with a plurality of supporting ribs (514) that are radial distribution, the tip of supporting rib (514) is equipped with bending portion (515) of downwarping, the upper end of spring piece support in supporting rib (514), a plurality of bending portion (515) support in the periphery of the upper end of spring piece in order to centre gripping the spring piece.

6. A push pump as claimed in claim 5, wherein:

the circular plate part (511), the supporting ribs (514) and the sealing ring (512) are of an integrated rubber structure.

7. A push pump according to claim 4, wherein:

the bottle body (100) comprises a straight barrel part (110), the inner diameter of the straight barrel part (110) is matched with the outer diameter of the sealing ring (512), a bottleneck part (111) is formed at the upper end of the straight barrel part (110), a bottle bottom part (120) is connected to the lower end of the straight barrel part (110), the bottle bottom part (120) and the straight barrel part (110) are of split structures, and the bottle bottom part (120) is provided with a first annular wall (121) embedded in the inner peripheral wall of the lower part of the straight barrel part (110) and a second annular wall (122) concentric with the first annular wall (121), and a positioning groove (123) is defined between the second annular wall (122) and the first annular wall (121).

8. A compression pump as claimed in claim 7, wherein:

the utility model provides a novel bottle neck sealing device, including bottle neck (111) and valve body (210), including the valve body (210) that is fixed in between bottle neck (111) and locking closure (130), be equipped with movable chamber (211) of intercommunication bottle (100) on bottleneck (111) threaded connection has locking closure (130), the middle part of locking closure (130) is equipped with perforation (131), check valve subassembly (200) are including being fixed in bottleneck (111) with be equipped with between locking closure (130), be equipped with in valve body (210) intercommunication inner chamber of bottle (100), movable chamber (211) are interior movable be provided with valve rod (220), the upper portion of valve rod (220) wears to locate perforation (131), press first (300) with the upper end of valve rod (220) links to each other, the inside of valve rod (220) is equipped with fluid channel (221), the lateral part of valve rod (220) be equipped with fluid channel (221) be linked together through-hole (222), valve body (210) are equipped with can close sealing member (230), be equipped with spring drive piece (240) between the lower extreme of valve rod (220) and movable chamber (211), spring drive piece (240) can make valve rod (220) upwards move in order to close through-hole (230), the push head (300) drives the valve rod (220) to move downwards so that the through hole (222) communicates the movable cavity (211) with the fluid channel (221).