Liquid-gas mixing pump

Abstract

The present invention discloses a liquid-gas mixing pump, wherein the liquid-gas mixing pump comprises: a rotating part, a limiting part is provided along the axis of the rotating part, and the limiting part has a height difference in the vertical direction; a driving assembly, which is drivingly connected to the rotating part to drive the rotating part to rotate; a connecting rod, one end of which is slidably connected to the limiting part; a positioning part, the connecting rod passes through the positioning part and is slidably connected to the positioning part; a leather cup body, which is provided on the side of the connecting rod away from the rotating part, and the leather cup body has a receiving space; wherein the driving assembly drives the rotating part to rotate, so that the connecting rod slides along the limiting part, driving the connecting rod to move in a direction close to or away from the leather cup body, so as to compress or relax the leather cup body. The technical solution of the present invention solves the problem that the leather cup body is easily damaged due to uneven force when it is compressed or relaxed.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid pumps, and in particular to a liquid-gas mixing pump. Background Art

[0002] A liquid-gas mixing pump generally extracts liquid or gas by reciprocating compression and relaxation of a leather bowl body. When the leather bowl body relaxes, the liquid or gas is sucked into the interior of the leather bowl body, and when the leather bowl body is compressed, the liquid or gas is squeezed out from the interior of the leather bowl body.

[0003] The existing liquid-gas mixing pump is provided with an eccentric wheel at the output end of the motor. The leather cup body is connected to the eccentric wheel through a swing frame. The connecting rod of the swing frame is movably connected to the eccentric wheel. When the eccentric wheel rotates with the motor, the eccentric wheel drives the swing piece to cyclically shift, thereby driving the multiple compression chambers of the leather cup body to compress and relax in turn.

[0004] However, in the existing liquid-gas mixing pump, the leather cup body always reciprocates and deforms toward one side of the center of the swing frame during compression and expansion, and is easily damaged due to uneven force. Summary of the invention

[0005] The main purpose of the present invention is to provide a liquid-gas mixing pump, aiming to solve the problem that the leather cup body of the liquid-gas mixing pump is easily damaged due to uneven force when compressed or expanded.

[0006] To achieve the above object, the present invention provides a liquid-gas mixing pump, comprising:

[0007] A rotating part, wherein a limiting part is provided along the axis of the rotating part, and the limiting part has a height difference in the vertical direction;

[0008] A driving assembly, drivingly connected to the rotating part to drive the rotating part to rotate;

[0009] A connecting rod, one end of which is slidably connected to the limiting portion;

[0010] A positioning portion, wherein the connecting rod passes through the positioning portion and is slidably connected to the positioning portion;

[0011] A leather cup body, arranged on a side of the connecting rod away from the rotating part, and the leather cup body has a receiving space;

[0012] The driving assembly drives the rotating part to rotate, so that the connecting rod slides along the limiting part, driving the connecting rod to move toward or away from the leather cup body, so as to compress or relax the leather cup body.

[0013] Optionally, a connecting portion is provided at one end of the connecting rod close to the rotating portion, one end of the connecting portion is fixedly connected to the connecting rod, and the other end is slidably connected to the limiting portion.

[0014] Optionally, the connecting portion is a pin, and the limiting portion is a slide groove; and / or,

[0015] The rotating part is symmetrically arranged about the first plane, the limiting part has a first end and a second end on one side of the first plane, and the limiting part has a third end and a fourth end on the other side of the first plane, the second end is connected to the third end, and the first end is connected to the fourth end, wherein the height of the limiting part from the ground increases from the first end to the second end, and the height of the limiting part from the ground decreases from the third end to the fourth end, the first end of the limiting part is flush with the fourth end, and the second end of the limiting part is flush with the third end.

[0016] Optionally, the liquid-gas mixing pump further comprises a connecting plate, the connecting plate is detachably connected to an end of the connecting rod away from the rotating part, the connecting plate is provided with a snap-fitting groove, and a snap-fitting joint cooperating with the snap-fitting groove is provided on a side of the leather cup body facing the connecting rod; and / or,

[0017] The liquid-gas mixing pump also includes a limit assembly for limiting the rotation of the connecting rod, the limit assembly includes a convex rib and a groove, one of the positioning part and the connecting rod is provided with the convex rib, the other of the positioning part and the connecting rod is provided with the groove, and the convex rib is inserted into the groove.

[0018] Optionally, a liquid-gas partition is provided in the receiving space, and the liquid-gas partition divides the receiving space into at least one liquid cavity compression chamber and at least one gas cavity compression chamber;

[0019] The compression or expansion of the liquid cavity compression chamber allows the liquid-gas mixing pump to suck liquid out of the container, while the expansion or expansion of the gas cavity compression chamber allows the liquid-gas mixing pump to input gas into the container.

[0020] Optionally, the liquid-gas mixing pump further comprises:

[0021] A pump seat, wherein the pump seat is provided with a liquid inlet, a liquid outlet, an air inlet and an air outlet, and the interior of the pump seat is divided into a liquid inlet cavity, a liquid outlet cavity, an air inlet cavity and an air outlet cavity, the liquid inlet cavity is connected to the liquid inlet, the liquid outlet cavity is connected to the liquid outlet, the air inlet cavity is connected to the air inlet, and the air outlet cavity is connected to the air outlet, and the pump seat is further provided with liquid holes and air holes, the liquid inlet cavity and the liquid outlet cavity are connected to at least one of the liquid cavity compression chambers through at least one of the liquid holes, and the air inlet cavity and the air outlet cavity are connected to at least one of the air cavity compression chambers through at least one of the air holes; and

[0022] The shell has an installation space formed inside, the pump seat and the driving assembly are fixedly connected to the shell respectively, and the rotating part, the connecting rod, the positioning part and the leather cup body are arranged in the installation space.

[0023] Optionally, the liquid-gas mixing pump further comprises a hollow air outlet needle and a liquid inlet needle, the side walls of the air outlet needle and the liquid inlet needle are respectively provided with notches, the air outlet needle is connected to the air outlet of the pump seat, and the liquid inlet needle is connected to the liquid inlet of the pump seat.

[0024] Optionally, the notched outer sleeve is provided with a filter.

[0025] Optionally, the liquid-gas mixing pump further comprises a one-way sealing valve plate, wherein the one-way sealing valve plate is connected to the pump seat to limit the flow direction of the fluid passing through the liquid hole or the gas hole.

[0026] Optionally, the liquid-gas mixing pump further includes a one-way valve, and one of the one-way valves is respectively provided at the liquid inlet, the liquid outlet, the gas inlet and the gas outlet.

[0027] In a technical solution of an embodiment of the present invention, a liquid-gas mixing pump drives a rotating part to rotate through a driving assembly, and a limiting part is provided along the axis of the rotating part, and the limiting part also rotates with the rotation of the rotating part. The limiting part has a height difference in the vertical direction, and one end of the connecting rod is slidably connected to the limiting part. At the same time, the connecting rod passes through the positioning part and is slidably connected to the positioning part, and the positioning part is fixed. Therefore, when the driving assembly drives the rotating part to rotate, one end of the connecting rod can change position following the height difference of the limiting part, so that the connecting rod can slide linearly along the positioning part. The leather cup body is arranged on the side of the connecting rod away from the rotating part. When the connecting rod slides linearly, the connecting rod moves in a direction close to or away from the leather cup body, which can drive the leather cup body to move straight up and down to achieve compression or relaxation, thereby solving the problem that the leather cup body of the existing liquid-gas mixing pump always deforms back and forth toward one side during compression and relaxation, resulting in uneven force and easy damage. Compared to the straight up and down movement of the leather bowl body driven directly by the telescopic component, the liquid-gas mixing pump in the present technical solution is realized by rotation. When it is necessary to adjust the flow rate of the liquid-gas mixing pump per unit time, that is, when it is necessary to adjust the number of times the leather bowl body is compressed and relaxed per unit time, the liquid-gas mixing pump in the present solution only needs to adjust the rotation speed of the driving component, which is simpler and faster than adjusting the speed of the telescopic component. Moreover, when the leather bowl body is provided with multiple compression chambers, the telescopic component can only drive multiple compression chambers to compress and relax at the same time, which will cause the liquid pumped out by the liquid-gas mixing pump to be intermittent and not smooth. If a separate telescopic component is provided for each compression chamber, the structure will be very complicated. The liquid-gas mixing pump in the present solution can realize the compression and relaxation of multiple compression chambers in sequence by adjusting the shape of the limiting part, so that the liquid pumped out by the liquid-gas mixing pump is stable and smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0029] Figure 1 It is a partial structural schematic diagram of an embodiment of a liquid-gas mixing pump of the present invention;

[0030] Figure 2 An exploded view of an embodiment of a liquid-gas mixing pump of the present invention;

[0031] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0032] Figure 4 It is a schematic structural diagram of the rotating part of the liquid-gas mixing pump of the present invention;

[0033] Figure 5 It is a structural schematic diagram of a connecting rod and a connecting plate of a liquid-gas mixing pump of the present invention;

[0034] Figure 6 It is a structural schematic diagram of the leather cup body of the liquid-gas mixing pump of the present invention;

[0035] Figure 7 The structure of the pump seat of the liquid-gas mixing pump of the present invention is shown in FIG. Figure 1 ;

[0036] Figure 8 The structure of the pump seat of the liquid-gas mixing pump of the present invention is shown in FIG. Figure 2 ;

[0037] Fig. 9 It is a structural schematic diagram of a seat cover of a pump seat of a liquid-gas mixing pump of the present invention;

[0038] Fig.10 It is a structural schematic diagram of a seat body of a pump seat of a liquid-gas mixing pump of the present invention;

[0039] Fig.11 It is a schematic structural diagram of the one-way sealing valve plate of the liquid-gas mixing pump of the present invention.

[0040] Description of Figure Numbers:

[0041]

[0042]

[0043] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] When extracting liquid from a closed container, as the amount of liquid inside the closed container decreases, the pressure inside the closed container also decreases, which will cause a pressure difference between the inside and outside of the closed container, making it difficult to continue extracting liquid from the inside of the closed container, and the pressure difference may even cause the liquid to be sucked back into the closed container. Therefore, there is a liquid-gas mixing pump in the prior art. During the process of extracting liquid from a closed container, gas can be introduced into the closed container to maintain the pressure inside the closed container, and the liquid can be avoided from being sucked back into the closed container as much as possible, while reducing the difficulty of extracting liquid from the closed container. The existing liquid-gas mixing pump extracts liquid or gas through the reciprocating compression and relaxation of the leather bowl body. When the leather bowl body relaxes, the liquid or gas is sucked into the leather bowl body, and when the leather bowl body is compressed, the liquid or gas is squeezed out from the leather bowl body. The existing liquid-gas mixing pump is provided with an eccentric wheel at the output end of the motor, and the leather cup body is connected to the eccentric wheel through a swing frame, and the connecting rod of the swing frame is movably connected to the eccentric wheel. When the eccentric wheel rotates with the motor, the eccentric wheel drives the swing member to shift cyclically, thereby driving the multiple compression chambers of the leather cup body to compress and relax in turn. However, in the existing liquid-gas mixing pump, the leather cup body always deforms back and forth toward one side of the center of the swing frame during compression and relaxation, and is easily damaged due to uneven force. If a telescopic component that can be retracted is directly used to drive the leather cup body to compress and relax, when the leather cup body is provided with multiple compression chambers, the multiple compression chambers of the leather cup body can only compress and relax at the same time, resulting in an unsmooth and unbalanced outflow of the liquid.

[0049] The invention provides a liquid-gas mixing pump.

[0050] Reference Figure 1 , Figure 1 It is a partial structural schematic diagram of an embodiment of a liquid-gas mixing pump of the present invention.

[0051] In an embodiment of the present invention, the liquid-gas mixing pump comprises:

[0052] The rotating part 200 is provided with a limiting part 210 along the axis of the rotating part 200, and the limiting part 210 has a height difference in the vertical direction;

[0053] The driving assembly 100 is drivingly connected to the rotating part 200 to drive the rotating part 200 to rotate;

[0054] A connecting rod 300, one end of which is slidably connected to the limiting portion 210;

[0055] The positioning part 400, the connecting rod 300 passes through the positioning part 400 and is slidably connected with the positioning part 400;

[0056] The leather cup body 500 is disposed on a side of the connecting rod 300 away from the rotating part 200, and the leather cup body 500 has a receiving space 520;

[0057] The driving assembly 100 drives the rotating part 200 to rotate, so that the connecting rod 300 slides along the limiting part 210, driving the connecting rod 300 to move toward or away from the leather cup body 500, so as to compress or relax the leather cup body 500.

[0058] The function of the rotating part 200 is to drive the limiting part 210 to rotate. The rotating part 200 can be integrally formed or assembled from multiple parts. The shape of the rotating part 200 can be a cylinder or a special-shaped body, etc., as long as it meets the functional requirements, and is not limited here. The limiting part 210 can be a guide rail or a slide groove, etc. The height difference of the limiting part 210 in the vertical direction can be only one highest point and one lowest point, or it can be wavy with multiple highest points and lowest points. The driving assembly 100 is used to realize the driving of the rotating part 200 to rotate, and can be a combination of a motor or a steam turbine and related parts. The positioning part 400 is used to limit the sliding direction of the connecting rod 300. The positioning part 400 can be a circular plate with a hole, or it can be a tubular component that is sleeved on the outside of the connecting rod 300 and corresponds to the shape of the outer circumference of the connecting rod 300. The leather cup body 500 is provided with a receiving space 520. When the leather cup body 500 is compressed and expanded, liquid or gas is absorbed and discharged through the receiving space 520. The leather cup body 500 can divide the receiving space 520 into a plurality of compression chambers. The number of connecting rods 300 can be set corresponding to the number of compression chambers of the leather cup body 500.

[0059] In a technical solution of an embodiment of the present invention, a liquid-gas mixing pump drives a rotating part 200 to rotate through a driving assembly 100, and a limiting part 210 is provided along the axis of the rotating part 200, and the limiting part 210 also rotates with the rotation of the rotating part 200. The limiting part 210 has a height difference in the vertical direction, and one end of the connecting rod 300 is slidably connected with the limiting part 210, and at the same time, the connecting rod 300 passes through the positioning part 400 and is slidably connected with the positioning part 400, and the positioning part 400 is fixed, so when the driving assembly 100 drives the rotating part 200 to rotate, one end of the connecting rod 300 can change position following the height difference of the limiting part 210, so that the connecting rod 300 can slide linearly along the positioning part 400. The leather cup body 500 is arranged on the side of the connecting rod 300 away from the rotating part 200. When the connecting rod 300 slides linearly, the connecting rod 300 moves in the direction close to or away from the leather cup body 500, which can drive the leather cup body 500 to move straight up and down to achieve compression or relaxation, thereby solving the problem that the leather cup body 500 of the existing liquid-gas mixing pump always deforms back and forth toward one side during compression and relaxation, resulting in uneven force and easy damage. Compared with directly driving the leather cup body 500 to move straight up and down through the telescopic component, the liquid-gas mixing pump in this technical solution is realized by rotation. When it is necessary to adjust the flow rate of the liquid-gas mixing pump per unit time, that is, when it is necessary to adjust the number of times the leather cup body 500 is compressed and relaxed per unit time, the liquid-gas mixing pump in this solution only needs to adjust the rotation speed of the driving component 100, which is simpler and faster than adjusting the speed of the telescopic component. Moreover, when the leather cup body 500 is provided with a plurality of compression chambers, the telescopic assembly can only drive the plurality of compression chambers to compress and relax at the same time, which will cause the liquid pumped out by the liquid-gas mixing pump to be intermittent and not smooth. If a separate telescopic assembly is provided for each compression chamber, the structure will be very complicated. The liquid-gas mixing pump in this solution can realize the compression and relaxation of the plurality of compression chambers in sequence by adjusting the shape of the limiting portion 210, so that the liquid pumped out by the liquid-gas mixing pump is stable and smooth.

[0060] Optionally, a connecting portion 310 is provided at one end of the connecting rod 300 close to the rotating portion 200 , one end of the connecting portion 310 is fixedly connected to the connecting rod 300 , and the other end is slidably connected to the limiting portion 210 .

[0061] Please combine Figures 3 to 5In this embodiment, a connecting part 310 is provided at one end of the connecting rod 300 close to the rotating part 200, and the connecting rod 300 is slidably connected with the limiting part 210 through the connecting part 310. The sliding connection between the connecting part 310 and the limiting part 210 can be achieved by the connecting part 310 being a pin and the limiting part 210 being a slide groove matched with the connecting part 310, or by the connecting part 310 being provided with a guide groove and the limiting part 210 being a guide rail matched with the connecting part 310. A rotating part can also be provided on the connecting part 310 and / or the limiting part 210, and the rotating part can be a steel ball roller or a universal wheel, etc., to convert the sliding friction between the connecting part 310 and the limiting part 210 into rolling friction, thereby reducing the influence of friction and making the sliding of the connecting part 310 and the limiting part 210 smoother.

[0062] Optionally, the connecting portion 310 is a pin, and the limiting portion 210 is a slide groove; and / or,

[0063] The rotating part 200 is symmetrically arranged about the first plane, the limiting part 210 has a first end and a second end on one side of the first plane, and the limiting part 210 has a third end and a fourth end on the other side of the first plane, the second end is connected to the third end, and the first end is connected to the fourth end, wherein the height of the limiting part 210 from the ground increases from the first end to the second end, and the height of the limiting part 210 from the ground decreases from the third end to the fourth end, the first end of the limiting part 210 is flush with the fourth end, and the second end of the limiting part 210 is flush with the third end.

[0064] Please combine Figure 4 and Figure 5 In this embodiment, the connecting part 310 is a pin, the limiting part 210 is a slide groove, and the pin is inserted into the slide groove to realize the sliding connection between the connecting rod 300 and the rotating part 200. The structure is simple and easy to process. And / or, please refer to Figure 5 In this embodiment, the rotating part 200 is symmetrically arranged about the first plane, and the first plane is a plane passing through the rotation axis of the rotating part 200. The limiting part 210 has a first end and a second end on one side of the first plane, and the limiting part 210 has a third end and a fourth end on the other side of the first plane, and the second end is connected to the third end, and the first end is connected to the fourth end, wherein the height of the limiting part 210 from the ground increases from the first end to the second end, and the height of the limiting part 210 from the ground decreases from the third end to the fourth end, the first end of the limiting part 210 is flush with the fourth end, and the second end of the limiting part 210 is flush with the third end, and the height difference of the limiting part 210 allows the connecting rod 300 to slide along the positioning part 400, and the structure is simple and easy to process. Please combine it with Figure 1 and Figure 2In this embodiment, the limiting portion 210 has only one lowest position. When multiple connecting rods 300 are provided corresponding to the multiple cavities of the leather cup body 500, at most only one connecting rod 300 compresses the leather cup body 500 at the same time. As the rotating portion 200 continues to rotate, the lowest position of the limiting portion 210 passes through the multiple connecting rods 300 in turn, so that the multiple connecting rods 300 can compress the leather cup body 500 in turn, thereby making the liquid-gas mixing pump more smooth and stable when extracting liquid.

[0065] Further, the liquid-gas mixing pump further comprises a connecting plate 600, which is detachably connected to the end of the connecting rod 300 away from the rotating part 200, the connecting plate 600 is provided with a snap-fit ​​groove 610, and the side of the leather cup body 500 facing the connecting rod 300 is provided with a snap-fit ​​joint 510 cooperating with the snap-fit ​​groove 610; and / or,

[0066] The liquid-gas mixing pump also includes a limit assembly for limiting the rotation of the connecting rod 300, the limit assembly includes a convex rib 320 and a groove 410, one of the positioning part 400 and the connecting rod 300 is provided with the convex rib 320, the other of the positioning part 400 and the connecting rod 300 is provided with a groove 410, and the convex rib 320 is inserted into the groove 410.

[0067] Please combine Figure 3 and Figure 5 In this embodiment, a connecting plate 600 is provided at one end of the connecting rod 300 away from the rotating part 200. The connecting plate 600 and the connecting rod 300 are detachably connected, and can be screwed or clamped. When the connecting plate 600 is removed from the connecting rod 300, the assembly of the connecting rod 300 and the positioning part 400 can be facilitated. When the connecting plate 600 is assembled with the connecting rod 300, the connecting rod 300 compresses the leather cup body 500 through the connecting plate 600, thereby increasing the force-bearing area of ​​the leather cup body 500 and making the force of the leather cup body 500 more uniform. The connecting part 310 is provided with a clamping groove 610, and the side of the leather cup body 500 facing the connecting rod 300 is provided with a clamping joint 510 that cooperates with the clamping groove 610. The clamping joint 510 is embedded in the clamping groove 610 to realize the connection between the connecting rod 300 and the leather cup body 500, and the structure is simple and easy to disassemble and assemble. The specific shape and structure of the clamping joint 510 and the clamping groove 610 can be adjusted and designed as needed to meet the functional requirements, and are not limited here. When the connecting rod 300 slides in the direction close to the leather cup body 500, the connecting rod 300 pushes the connecting plate 600 to compress the leather cup body 500. When the connecting rod 300 slides in the direction away from the leather cup body 500, the connecting rod 300 drives the connecting plate 600 to move, and the connecting plate 600 drives the leather cup body 500 through the clamping joint 510 and the clamping groove 610, so that the leather cup body 500 can relax. And / or, please refer to Figure 3In this embodiment, the liquid-gas mixing pump further includes a limiting assembly, which includes a convex rib 320 and a groove 410. One of the positioning part 400 and the connecting rod 300 is provided with a convex rib 320, and the other of the positioning part 400 and the connecting rod 300 is provided with a groove 410. The convex rib 320 is inserted into the groove 410 to limit the connecting rod 300 from rotating relative to the positioning part 400. Specifically in this embodiment, the cross section of the connecting rod 300 is set to a square, the edge of the connecting rod 300 is equivalent to the convex rib 320, and the hole on the positioning part 400 for the connecting rod 300 to pass through is also set to a square.

[0068] Optionally, a liquid-gas partition is provided in the receiving space 520, and the liquid-gas partition divides the receiving space 520 into at least one liquid cavity compression chamber and at least one gas cavity compression chamber;

[0069] The compression or expansion of the liquid cavity compression chamber allows the liquid-gas mixing pump to suck the liquid out of the container, while the expansion or expansion of the gas cavity compression chamber allows the liquid-gas mixing pump to input the gas into the container.

[0070] Please refer to Figure 6 In this embodiment, the leather cup body 500 is provided with a liquid-gas partition, which divides the receiving space 520 of the leather cup body 500 into at least one liquid cavity compression chamber and at least one gas cavity compression chamber. A plurality of connecting rods 300 are provided corresponding to the number and position of the liquid cavity compression chamber and the number and position of the gas cavity compression chamber. The compression and relaxation of the liquid cavity compression chamber are used to realize the liquid transportation, and the compression and relaxation of the gas cavity compression chamber are used to realize the gas transportation. Independent passages are provided for liquid and gas, respectively, so that the liquid-gas mixing pump of this embodiment can switch between the two functions of extracting liquid and introducing gas more conveniently and quickly. Please combine Figures 2 to 10 In this embodiment, each air cavity compression chamber or each liquid cavity compression chamber is correspondingly provided with a connecting rod 300, and multiple connecting rods 300 are all arranged on the periphery of the rotating part 200. The rotating part 200 rotates to drive one of the connecting rods 300 to compress or relax the corresponding liquid cavity compression chamber so that the liquid-gas mixing pump absorbs water from the inside of the closed container. At the same time, the rotating part 200 drives another connecting rod 300 to relax or compress the corresponding air cavity compression chamber so that the liquid-gas mixing pump inflates the inside of the closed container, so that the two processes of extracting liquid from the closed container and filling the closed container with gas can be realized through the same structural form, and the function of introducing gas into the container can be realized without adding other components, making the structure of the liquid-gas mixing pump simpler. For details in this embodiment, please refer to Figure 3 The leather cup body 500 is provided with two liquid cavity compression chambers and one air cavity compression chamber, and three connecting rods 300 are correspondingly provided on the outer periphery of the rotating part 200 .

[0071] Optionally, the liquid-gas mixing pump further comprises:

[0072] A pump seat 700, wherein the pump seat 700 is provided with a liquid inlet 710, a liquid outlet 740, an air inlet 750 and an air outlet 780. The interior of the pump seat 700 is divided into a liquid inlet chamber 720, a liquid outlet chamber 730, an air inlet chamber 760 and an air outlet chamber 770. The liquid inlet chamber 720 is connected to the liquid inlet 710, the liquid outlet chamber 730 is connected to the liquid outlet 740, the air inlet chamber 760 is connected to the air inlet 750, and the air outlet chamber 770 is connected to the air outlet 780. The pump seat 700 is further provided with a liquid hole 790 and an air hole 7100. The liquid inlet chamber 720 and the liquid outlet chamber 730 are connected to at least one liquid chamber compression chamber through at least one liquid hole 790, and the air inlet chamber 760 and the air outlet chamber 770 are connected to at least one air chamber compression chamber through at least one air hole 7100; and

[0073] The housing 800 forms an installation space inside, the pump seat 700 and the driving assembly 100 are respectively fixedly connected to the housing 800, and the rotating part 200, the connecting rod 300, the positioning part 400 and the leather cup body 500 are arranged in the installation space.

[0074] Please combine Figures 7 to 10In this embodiment, the liquid-gas mixing pump includes a pump seat 700, which is provided with a liquid inlet 710, a liquid outlet 740, an air inlet 750, an air outlet 780, a liquid hole 790 and an air hole 7100. The interior of the pump seat 700 is divided into a liquid inlet chamber 720, a liquid outlet chamber 730, an air inlet chamber 760 and an air outlet chamber 770. The liquid inlet chamber 720 is connected to the liquid inlet port 710, and the liquid inlet chamber 720 and the liquid outlet chamber 730 are connected through at least one liquid hole 790 and at least one liquid chamber compression chamber, and the liquid outlet chamber 730 is connected to the liquid outlet port 740. When the leather cup body 500 is relaxed, the liquid in the sealed container enters the liquid inlet chamber 720 from the liquid inlet port 710, and enters the liquid chamber compression chamber through the liquid hole 790 to complete the liquid absorption; when the leather cup body 500 is compressed, the liquid in the liquid chamber compression chamber enters the liquid outlet chamber 730 through another liquid hole 790, and then flows out of the liquid-gas mixing pump through the liquid outlet port 740 to complete the liquid discharge. The air inlet cavity 760 is connected to the air inlet port 750, and the air inlet cavity 760 is connected to the air outlet cavity 770 through at least one air hole 7100 and at least one air cavity compression chamber, and the air outlet cavity 770 is connected to the air outlet port 780. When the leather cup body 500 is relaxed, the gas from the external environment enters the air inlet cavity 760 from the air inlet port 750, and enters the air cavity compression chamber through the air hole 7100 to complete the air intake; when the leather cup body 500 is compressed, the gas in the air cavity compression chamber enters the air outlet cavity 770 through another air hole 7100, and then enters the inside of the sealed container through the air outlet port 780 to complete the air discharge. Specifically in this embodiment, the pump seat 700 includes a seat body and a seat cover, the seat body and the seat cover are screwed, and a sealing film is provided between the seat body and the seat cover to seal the connection between the seat body and the seat cover. The liquid inlet 710, the liquid outlet 740, the air inlet 750 and the air outlet 780 are all arranged on the seat body, the liquid inlet cavity 720, the liquid outlet cavity 730, the air inlet cavity 760 and the air outlet cavity 770 are all arranged in the seat body, and the liquid hole 790 and the air hole 7100 are arranged on the seat cover. The liquid-gas mixing pump in this embodiment is also provided with a housing 800, the interior of the housing 800 forms an installation space, the pump seat 700 and the driving assembly 100 are respectively fixedly connected to the housing 800, the rotating part 200, the connecting rod 300, the positioning part 400 and the leather cup body 500 are arranged in the installation space, the positioning part 400 is fixed inside the housing 800, and the housing 800 can play a role in protecting the parts in the installation space.

[0075] Furthermore, the liquid-gas mixing pump also includes a hollow air outlet needle 1100 and a liquid inlet needle 1000 , and the side walls of the air outlet needle 1100 and the liquid inlet needle 1000 are respectively provided with notches. The air outlet needle 1100 is connected to the air outlet 780 of the pump seat 700 , and the liquid inlet needle 1000 is connected to the liquid inlet 710 of the pump seat 700 .

[0076] Please combine Figure 1 , Figure 2 and Figure 7In this embodiment, the liquid-gas mixing pump is provided with an air outlet needle 1100 and a liquid inlet needle 1000. The interior of the air outlet needle 1100 and the liquid inlet needle 1000 are both hollow and have notches on the side walls, respectively. The notches can be one or more. The air outlet needle 1100 is connected to the air outlet port 780. The liquid-gas mixing pump discharges the gas in the air outlet cavity 770 from the air outlet port 780 into the air outlet needle 1100, and then enters the interior of the sealed container through the notch of the air outlet needle 1100; the liquid inlet needle 1000 is connected to the liquid inlet port 710. The liquid-gas mixing pump sucks the liquid from the interior of the sealed container into the liquid inlet needle 1000 through the notch of the liquid inlet needle 1000, and then enters the liquid inlet cavity 720 inside the pump seat 700 through the liquid inlet port 710. When the liquid-gas mixing pump is working, the air outlet needle 1100 and the liquid inlet needle 1000 are inserted into the interior of the sealed container. Setting them in a needle shape can reduce the contact area and save effort during insertion.

[0077] Furthermore, the notched outer sleeve is provided with a filter 1200 .

[0078] Please refer to Figure 1 In this embodiment, a filter screen 1200 is provided on the outer sleeve of the notch, which can reduce the impurities in the liquid from entering the liquid-gas mixing pump and causing the notch or internal passage of the liquid-gas mixing pump to be blocked. The shape of the filter screen 1200 can be adjusted and designed as needed to meet the functional requirements and is not limited here.

[0079] Optionally, the liquid-gas mixing pump further includes a one-way sealing valve plate 900 , which is connected to the pump seat 700 to limit the flow direction of the fluid passing through the liquid hole 790 or the gas hole 7100 .

[0080] Please combine Figure 8 , Fig. 9 and Fig.11 In this embodiment, the liquid-gas mixing pump further includes a one-way sealing valve disc 900, which may be an umbrella-shaped tee or a sealing gasket. The one-way sealing valve provided at the liquid hole 790 connecting the liquid inlet chamber 720 and the liquid chamber compression chamber allows liquid to enter the liquid chamber compression chamber only from the liquid inlet chamber 720; the one-way sealing valve disc 900 provided at the liquid hole 790 connecting the liquid chamber compression chamber and the liquid outlet chamber 730 allows liquid to enter the liquid outlet chamber 730 only from the liquid chamber compression chamber; the one-way sealing valve provided at the air hole 7100 connecting the air inlet chamber 760 and the air chamber compression chamber allows gas to enter the air chamber compression chamber only from the air inlet chamber 760; the one-way sealing valve disc 900 provided at the air hole 7100 connecting the air chamber compression chamber and the air outlet chamber 770 allows gas to enter the air outlet chamber 770 only from the air chamber compression chamber.

[0081] Furthermore, the liquid-gas mixing pump also includes a one-way valve 1300 , and a one-way valve 1300 is respectively provided at the liquid inlet 710 , the liquid outlet 740 , the gas inlet 750 , and the gas outlet 780 .

[0082] Please combine Figure 2 , Figure 7 and Fig.10 In this embodiment, the liquid-gas mixing pump includes a one-way valve 1300. The one-way valve 1300 at the liquid inlet 710 allows the liquid to flow only from the inside of the liquid inlet needle 1000 to the inside of the liquid inlet cavity 720, thereby preventing the liquid entering the liquid-gas mixing pump from flowing back into the container; the one-way valve 1300 at the liquid outlet 740 allows the liquid to flow only from the inside of the liquid outlet cavity 730 to the outside of the liquid outlet 740, thereby preventing the liquid leaving the liquid-gas mixing pump from flowing back into the liquid-gas mixing pump; the one-way valve 1300 at the air inlet 750 allows the gas to flow only from the external environment to the inside of the air inlet cavity 760, thereby preventing the gas entering the liquid-gas mixing pump from flowing back to the external environment; the one-way valve 1300 at the air outlet 780 allows the gas to flow only from the inside of the air outlet cavity 770 to the inside of the air outlet needle 1100, thereby preventing the gas entering the container from flowing back to the liquid-gas mixing pump and preventing the liquid from flowing from the inside of the air outlet needle 1100 to the inside of the air outlet cavity 770. The one-way valve 1300 may be a spring type or a diaphragm type, etc. Specifically, in this embodiment, a spring type is adopted.

[0083] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A liquid-gas mixing pump, characterized in that: include: A rotating part, wherein a limiting part is provided along the axis of the rotating part, and the limiting part has a height difference in the vertical direction; A driving assembly, drivingly connected to the rotating part to drive the rotating part to rotate; A connecting rod, one end of which is slidably connected to the limiting portion; A positioning portion, wherein the connecting rod passes through the positioning portion and is slidably connected to the positioning portion; A leather cup body, arranged on a side of the connecting rod away from the rotating part, and the leather cup body has a receiving space; The driving assembly drives the rotating part to rotate, so that the connecting rod slides along the limiting part, driving the connecting rod to move toward or away from the leather cup body, so as to compress or relax the leather cup body; A connecting portion is provided at one end of the connecting rod close to the rotating portion, one end of the connecting portion is fixedly connected to the connecting rod, and the other end is slidably connected to the limiting portion; The connecting part is a pin, and the limiting part is a slide groove; The rotating part is symmetrically arranged about the first plane, the limiting part has a first end and a second end on one side of the first plane, and the limiting part has a third end and a fourth end on the other side of the first plane, the second end is connected to the third end, and the first end is connected to the fourth end, wherein the height of the limiting part from the ground is in an increasing state from the first end to the second end, and the height of the limiting part from the ground is in a decreasing state from the third end to the fourth end, the first end of the limiting part is flush with the fourth end, and the second end of the limiting part is flush with the third end; The liquid-gas mixing pump further comprises a connecting plate, the connecting plate is detachably connected to an end of the connecting rod away from the rotating part, the connecting plate is provided with a clamping groove, and a clamping joint matching with the clamping groove is provided on a side of the leather cup body facing the connecting rod; The liquid-gas mixing pump further comprises a limiting assembly for limiting the rotation of the connecting rod, wherein the limiting assembly comprises a convex rib and a groove, one of the positioning part and the connecting rod is provided with the convex rib, the other of the positioning part and the connecting rod is provided with the groove, and the convex rib is inserted into the groove; A liquid-gas partition is provided in the receiving space, and the liquid-gas partition divides the receiving space into at least one liquid cavity compression chamber and at least one gas cavity compression chamber; during the process that the liquid cavity compression chamber is compressed or expanded so that the liquid-gas mixing pump sucks liquid out of the container, the gas cavity compression chamber is expanded or compressed so that the liquid-gas mixing pump inputs gas into the container.

2. The liquid-gas mixing pump according to claim 1, characterized in that: The liquid-gas mixing pump also includes: A pump seat, wherein the pump seat is provided with a liquid inlet, a liquid outlet, an air inlet and an air outlet, and the interior of the pump seat is divided into a liquid inlet cavity, a liquid outlet cavity, an air inlet cavity and an air outlet cavity, the liquid inlet cavity is connected to the liquid inlet, the liquid outlet cavity is connected to the liquid outlet, the air inlet cavity is connected to the air inlet, and the air outlet cavity is connected to the air outlet, and the pump seat is further provided with liquid holes and air holes, the liquid inlet cavity and the liquid outlet cavity are connected to at least one of the liquid cavity compression chambers through at least one of the liquid holes, and the air inlet cavity and the air outlet cavity are connected to at least one of the air cavity compression chambers through at least one of the air holes; and The shell has an installation space formed inside, the pump seat and the driving assembly are fixedly connected to the shell respectively, and the rotating part, the connecting rod, the positioning part and the leather cup body are arranged in the installation space.

3. The liquid-gas mixing pump according to claim 2, characterized in that: The liquid-gas mixing pump also includes a hollow air outlet needle and a liquid inlet needle, the side walls of which are respectively provided with notches, the air outlet needle is connected to the air outlet of the pump seat, and the liquid inlet needle is connected to the liquid inlet of the pump seat.

4. The liquid-gas mixing pump according to claim 3, characterized in that: The notched outer shell is provided with a filter screen.

5. The liquid-gas mixing pump according to claim 2, characterized in that: The liquid-gas mixing pump further comprises a one-way sealing valve plate, wherein the one-way sealing valve plate is connected to the pump seat to limit the flow direction of the fluid passing through the liquid hole or the gas hole.

6. The liquid-gas mixing pump according to claim 2, characterized in that: The liquid-gas mixing pump further comprises a one-way valve, and one of the one-way valves is respectively arranged at the liquid inlet, the liquid outlet, the gas inlet and the gas outlet.

Images