High-pressure multi-chamber pump

Abstract

The utility model belongs to the field of multi-chamber pumps, and particularly relates to a high-pressure multi-chamber pump which comprises a multi-chamber pump body provided with a liquid suction cavity, a liquid drainage cavity and a driving cavity. The connecting part is used for communicating the liquid suction cavity with the driving cavity; the multiple diaphragms are installed on the multi-chamber pump body, and the diaphragms are located between the liquid suction cavity and the driving cavity. External fluid is input through the fluid suction cavity, the fluid discharge cavity is used for discharging the fluid, and the driving cavity is used for installing an external transmission assembly, so that suction force and thrust are generated, fluid entering and discharging are achieved, when the diaphragm is squeezed, pressure can be generated on the side, facing the working cavity, of the diaphragm, and the diaphragm is prone to exploding when the pressure is too large; at the moment, the driving cavity and the liquid discharging cavity are communicated through the connecting part, the connecting part can transmit the extrusion pressure of the diaphragm into the driving cavity at the same time, the same pressure is generated on the side, away from the liquid suction cavity, of the diaphragm, and after the pressure is offset, the bearing pressure of the diaphragm is improved.

Description

Technical Field

[0001] The utility model belongs to the field of multi-chamber pumps, and in particular relates to a high-pressure multi-chamber pump. Background Art

[0002] Most multi-chamber pumps use a transmission structure to drive the diaphragm to move between the drive chamber and the suction chamber. The movement of the diaphragm generates suction and thrust, thereby driving the entry and discharge of fluid.

[0003] However, only one side of the existing diaphragm bears the pressure of the liquid infusion in the liquid suction cavity. If the pressure is too high, it is easy to cause the diaphragm to fall out or burst, and the pressure borne by the diaphragm is relatively small. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the utility model provides a high-pressure multi-chamber pump to solve the problem that only one side of the existing diaphragm can withstand the pressure of the liquid infusion in the suction chamber. If the pressure is too high, it is easy to cause the diaphragm to fall out or burst, and the pressure borne by the diaphragm is relatively small.

[0005] One embodiment of the present invention provides a high-pressure multi-chamber pump for transmitting fluid, comprising:

[0006] A multi-chamber pump body, wherein the multi-chamber pump body is provided with a liquid suction cavity, a liquid discharge cavity and a drive cavity;

[0007] a connecting component, the connecting component connecting the drainage chamber and the driving chamber;

[0008] A plurality of diaphragms are installed on the multi-chamber pump body and are located between the discharge chamber and the drive chamber.

[0009] The utility model provides a high-pressure multi-chamber pump, which inputs external fluid through the suction chamber, the discharge chamber is used to discharge the fluid, and the drive chamber is used to install an external transmission component, thereby generating suction and thrust to achieve the entry and discharge of fluid. When the diaphragm is squeezed, pressure will be generated on the side of the diaphragm facing the working chamber. When the pressure is too high, the diaphragm is likely to burst. At this time, the drive chamber and the discharge chamber are connected by a connecting component. The connecting component will simultaneously transmit the pressure of the diaphragm squeezing to the drive chamber, so that the same pressure is generated on the side of the diaphragm away from the suction chamber (the pressure on both sides of the diaphragm tends to be the same). After the two pressures are offset, the pressure that the diaphragm can withstand is increased.

[0010] In one embodiment, a transmission assembly is provided on the multi-chamber pump body, and the transmission assembly is provided with a plurality of output ends;

[0011] The output end is fixed at one end of the diaphragm, and the number of the output ends is consistent with the number of the diaphragms.

[0012] In one embodiment, the multi-chamber pump body is provided with working chambers, and the number of the working chambers is the same as the number of the diaphragms.

[0013] In one embodiment, the diaphragm includes an elastic portion and a fixed portion;

[0014] The elastic portion is fixedly connected to the output end of the transmission assembly;

[0015] The fixing portion is clamped on one side edge of the working cavity, and one side edge of the working cavity is provided with a clamping groove that is adapted to the size of the fixing portion.

[0016] In one embodiment, a plurality of liquid inlet holes and a plurality of liquid outlet holes are provided on one side of the working chamber.

[0017] In one embodiment, a liquid inlet control member is further provided on one side of the working chamber. The liquid inlet control member is located on one side of the liquid inlet through hole and is used to prevent the fluid from flowing back after entering the working chamber.

[0018] In one embodiment, a liquid outflow control member is provided on the liquid discharge cavity. The liquid outflow control member is located on one side of each of the liquid outflow holes and is used to prevent the fluid from flowing back after entering the liquid discharge cavity.

[0019] In one embodiment, when liquid is introduced, the liquid inlet control member is opened, and the working chamber is connected to the liquid suction chamber.

[0020] In one embodiment, when liquid is discharged, the liquid discharge control member is opened, and the working chamber is connected to the liquid discharge chamber.

[0021] In one embodiment, the connecting component includes a connecting pipe and a pressure relief valve;

[0022] One end of the connecting tube is in communication with the drainage cavity, and the other end of the connecting tube is in communication with the driving cavity;

[0023] The pressure relief valve is installed on the connecting pipe.

[0024] The high-pressure multi-chamber pump provided by the above technical solution has the following beneficial effects:

[0025] 1. External fluid is input through the suction chamber, the discharge chamber is used to discharge the fluid, and the drive chamber is used to install the external transmission component, thereby generating suction and thrust to achieve the entry and discharge of fluid. When the diaphragm is squeezed, pressure will be generated on the side of the diaphragm facing the working chamber. When the pressure is too high, the diaphragm is prone to bursting. At this time, the drive chamber and the discharge chamber are connected through a connecting component. The connecting component will simultaneously transmit the pressure of the diaphragm squeezing to the drive chamber, so that the same pressure is generated on the side of the diaphragm away from the suction chamber (the pressure on both sides of the diaphragm tends to be the same). After the two pressures are offset, the pressure that the diaphragm can withstand is increased.

[0026] 2. The pressure relief valve is used to adjust the pressure of the fluid entering the drive chamber. When the pressure of the fluid in the drive chamber is consistent with the pressure generated by the discharge chamber on the diaphragm, the pressure-bearing capacity of the diaphragm can be improved, and the pressure of the drive chamber can be controlled by the pressure relief valve. When the pressure generated by the controlled drive chamber on the diaphragm is greater than the pressure generated by the discharge chamber on the diaphragm, the side of the diaphragm facing the working chamber can withstand a higher pressure, rather than simply making the pressure generated by the drive chamber on the diaphragm consistent with the pressure generated by the discharge chamber on the diaphragm. Therefore, the pressure-bearing capacity of the diaphragm is better improved by the setting of the connecting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0028] Figure 1 It is a three-dimensional diagram of the utility model;

[0029] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0030] Figure 3 for Figure 2 Enlarged view of point A.

[0031] The markings in the figure are as follows:

[0032] 100. Multi-chamber pump body;

[0033] 110, suction chamber;

[0034] 120, drainage chamber; 130, driving chamber;

[0035] 200, connecting parts;

[0036] 210, connecting pipe; 220, pressure relief valve;

[0037] 300, diaphragm;

[0038] 310, elastic portion; 320, fixing portion;

[0039] 400, transmission assembly; 410, output end;

[0040] 500, working chamber;

[0041] 510, card slot; 520, liquid inlet through hole; 530, liquid outlet through hole;

[0042] 600, liquid inlet control parts;

[0043] 700. Liquid outlet control component. DETAILED DESCRIPTION

[0044] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0045] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0046] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0047] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0048] Combine Figures 1 to 3 As shown, one embodiment of the present invention provides a high-pressure multi-chamber pump for transmitting fluid, comprising:

[0049] A multi-chamber pump body 100 is provided with a liquid suction chamber 110, a liquid discharge chamber 120 and a drive chamber 130;

[0050] a connecting component 200 , the connecting component 200 connecting the drainage cavity 120 and the driving cavity 130 ;

[0051] A plurality of diaphragms 300 are installed on the multi-chamber pump body 100 , and the diaphragms 300 are located between the liquid suction chamber 110 and the driving chamber 130 .

[0052] The utility model provides a high-pressure multi-chamber pump, which inputs external fluid through the suction chamber 110, the discharge chamber 120 is used to discharge the fluid, and the drive chamber 130 is used to install the external transmission component 400, thereby generating suction and thrust to realize the entry and discharge of the fluid. When the diaphragm 300 is squeezed, pressure will be generated on the side of the diaphragm 300 facing the working chamber 500. When the pressure is too high, the diaphragm is likely to burst. At this time, the drive chamber 130 is connected to the discharge chamber 120 through the connecting component 200. The connecting component 200 will simultaneously transmit the pressure of the diaphragm 300 squeezing to the drive chamber 130, so that the same pressure is generated on the side of the diaphragm 300 away from the suction chamber 110 (the pressure on both sides of the diaphragm 300 tends to be the same). After the two pressures are offset, the pressure resistance of the diaphragm 300 is increased.

[0053] It should be noted that the diaphragm 300 is partially composed of elastic parts, so that it can complete multiple push and pull operations and generate suction and thrust.

[0054] Furthermore, the connecting component 200 may be a catheter, a connecting tube 210 or other components that connect the suction chamber 110 and the driving chamber 130, which is not limited here.

[0055] In one embodiment, the multi-chamber pump body 100 is provided with a transmission assembly 400 , and the transmission assembly 400 is provided with a plurality of output ends 410 ;

[0056] The output end 410 is fixed at one end of the diaphragm 300 , and the number of the output ends 410 is the same as the number of the diaphragms 300 .

[0057] In this embodiment, the diaphragm 300 is driven to move up and down by the transmission component 400. The transmission component 400 can be a cylinder that drives the diaphragm 300 to move, an eccentric shaft that drives the diaphragm 300 to rotate, or other components that can drive the diaphragm 300 to move back and forth. This is not a sole limitation.

[0058] In one embodiment, the multi-chamber pump body 100 is provided with working chambers 500 , and the number of the working chambers 500 is the same as the number of the diaphragms 300 .

[0059] In this embodiment, the working chamber 500 is used as a chamber for circulating fluid. The fluid is first sucked into the working chamber 500 from the suction chamber 110, and then discharged from the working chamber 500 to the discharge chamber 120, and finally discharged.

[0060] In one embodiment, the diaphragm 300 includes an elastic portion 310 and a fixing portion 320 ;

[0061] The elastic portion 310 is fixedly connected to the output end 410 of the transmission assembly 400;

[0062] The fixing portion 320 is clamped on one side edge of the working chamber 500 , and a clamping slot 510 having a size matching that of the fixing portion 320 is provided on one side edge of the working chamber 500 .

[0063] In this embodiment, the elastic portion 310 is driven by the transmission assembly 400 to perform reciprocating motion. When the elastic portion 310 moves away from the working chamber 500, suction is generated. At this time, the fluid in the suction chamber 110 is sucked into the working chamber 500. When the elastic portion 310 is pushed into the working chamber 500, thrust is generated, thereby transporting the fluid in the working chamber 500 to the discharge chamber 120, and finally discharging the fluid.

[0064] It should be noted that after the fixing portion 320 is fixed in the slot 510 , the portion where the working chamber 500 is connected to the diaphragm 300 is sealed, so that thrust and suction are generated only when the diaphragm 300 moves.

[0065] Furthermore, when the diaphragm 300 moves, a through hole needs to be opened on the working chamber 500, and the working chamber 500 is not completely sealed, which will be described in detail below.

[0066] In one embodiment, a plurality of liquid inlet holes 520 and a plurality of liquid outlet holes 530 are provided on one side of the working chamber 500;

[0067] A liquid inlet control member 600 is further provided on one side of the working chamber 500. The liquid inlet control member 600 is located on one side of the liquid inlet through hole 520 and is used to prevent the fluid from flowing back after entering the working chamber 500.

[0068] The drainage cavity 120 is provided with a liquid discharge control member 700 , which is located on one side of each of the liquid discharge through holes 530 and is used to prevent the fluid from flowing back after entering the drainage cavity 120 ;

[0069] When liquid is introduced, the liquid inlet control member 600 is opened, and the working chamber 500 is connected to the liquid suction chamber 110;

[0070] When liquid is discharged, the liquid discharge control member 700 is opened, and at this time the working chamber 500 is connected to the liquid discharge chamber 120 .

[0071] In this embodiment, as shown in the figure, when the diaphragm 300 is away from the working chamber 500, the liquid inlet control member 600 is stretched open by the pressure of the fluid, so that the fluid enters the working chamber 500 from the liquid suction chamber 110 through the liquid inlet through hole 520. After entering the working chamber 500, the liquid inlet control member 600 is an arc-shaped structure, and the arc surface of the liquid inlet control member 600 is tightly attached to one side of the working chamber 500 and is located on one side of the liquid inlet through hole 520. Therefore, when the fluid generates pressure, the arc surface is pushed open and enters the working chamber 500, and the other side of the arc structure is tightly attached to the working chamber 500 after being subjected to pressure. On one side of the working chamber 500, the fluid is prevented from flowing back into the suction chamber 110. Similarly, when the diaphragm 300 is squeezed into the working chamber 500, the fluid is squeezed to the liquid outlet hole 530. The liquid outlet control component 700 is also an arc-shaped structure, and the arc surface of the liquid outlet control component 700 is tightly attached to one side of the discharge chamber 120 and is located on one side of the liquid outlet hole 530. Therefore, when the fluid generates pressure, it pushes open part of the arc surface and enters the discharge chamber 120 and is discharged. The other side of the arc structure will be tightly attached to one side of the discharge chamber 120 after being subjected to pressure, thereby preventing the fluid entering the discharge chamber 120 from flowing back.

[0072] It should be noted that the liquid outlet control component 700 is a circular arc structure and covers each liquid outlet through hole 530. The number of liquid inlet control components 600 is consistent with the number of working chambers 500, and they are all installed in the corresponding working chambers 500. The liquid inlet through hole 520 on each working chamber 500 is connected to the liquid suction chamber 110 when the liquid inlet control component 600 is opened.

[0073] In one embodiment, the connecting component 200 includes a connecting pipe 210 and a pressure relief valve 220;

[0074] One end of the connecting tube 210 is connected to the drainage cavity 120 , and the other end of the connecting tube 210 is connected to the driving cavity 130 ;

[0075] The pressure relief valve 220 is installed on the connecting pipe 210 .

[0076] In this embodiment, the pressure relief valve 220 is used to regulate the pressure of the fluid entering the drive chamber 130. When the pressure of the fluid in the drive chamber 130 is consistent with the pressure generated on the diaphragm 300 in the drainage chamber 120, the pressure-bearing capacity of the diaphragm 300 can be improved, and the pressure of the drive chamber 130 can be controlled by the pressure relief valve 220. When the pressure generated on the diaphragm 300 by the controlled drive chamber 130 is greater than the pressure generated on the diaphragm 300 by the drainage chamber 120 (the pressure generated by the drainage chamber on the diaphragm refers to the pressure generated when the diaphragm squeezes the fluid into the drainage chamber), the side of the diaphragm 300 facing the working chamber 500 can withstand a higher pressure, rather than simply making the pressure generated on the diaphragm 300 by the drive chamber 130 consistent with the pressure generated on the diaphragm 300 by the drainage chamber 120. Therefore, the pressure-bearing capacity of the diaphragm 300 is better improved by the provision of the connecting component 200.

[0077] It should be noted that, during the test, the pressure bearing capacity of the diaphragm 300 is greater than 20 kg.

[0078] Furthermore, as shown in the figure, the liquid suction chamber 110 is partially located on one side of the working chamber 500 and is an annular chamber, so as to better communicate with each working chamber 500.

[0079] The working principle of this utility model:

[0080] When the diaphragm 300 is away from the working chamber 500, the liquid inlet control member 600 is stretched open by the pressure of the fluid, so that the fluid enters the working chamber 500 from the liquid suction chamber 110 through the liquid inlet through hole 520. After entering the working chamber 500, the liquid inlet control member 600 is an arc-shaped structure, and the arc surface of the liquid inlet control member 600 is tightly attached to one side of the working chamber 500 and is located on one side of the liquid inlet through hole 520. Therefore, when the fluid generates pressure, the arc surface is pushed open and enters the working chamber 500, and the other side of the arc structure is tightly attached to the working chamber 500 after being subjected to pressure. side, thereby preventing the fluid from flowing back into the suction chamber 110. Similarly, when the diaphragm 300 is squeezed into the working chamber 500, the fluid is squeezed to the liquid outlet through hole 530. The liquid outlet control component 700 is also an arc-shaped structure, and the arc surface of the liquid outlet control component 700 is tightly attached to one side of the discharge chamber 120 and is located on one side of the liquid outlet through hole 530. Therefore, when the fluid generates pressure, it pushes open part of the arc surface and enters the discharge chamber 120 and is discharged. The other side of the arc-shaped structure will be tightly attached to one side of the discharge chamber 120 after being subjected to pressure, thereby preventing the fluid entering the discharge chamber 120 from flowing back.

[0081] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the paper version and drawings of the present invention under the practical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A high-pressure multi-chamber pump for transmitting fluid, characterized in that: include: A multi-chamber pump body (100), wherein the multi-chamber pump body (100) is provided with a liquid suction cavity (110), a liquid discharge cavity (120), and a drive cavity (130); a connecting component (200), the connecting component (200) connecting the drainage cavity (120) and the driving cavity (130); A plurality of diaphragms (300) are installed on the multi-chamber pump body (100), and the diaphragms (300) are located between the discharge chamber (120) and the drive chamber (130).

2. A high-pressure multi-chamber pump according to claim 1, characterized in that: A transmission assembly (400) is provided on the multi-chamber pump body (100), and the transmission assembly (400) is provided with a plurality of output ends (410); The output end (410) is fixed to one end of the diaphragm (300), and the number of the output ends (410) is consistent with the number of the diaphragms (300).

3. A high-pressure multi-chamber pump according to claim 2, characterized in that: Working chambers (500) are provided in the multi-chamber pump body (100), and the number of the working chambers (500) is the same as that of the diaphragms (300).

4. A high-pressure multi-chamber pump according to claim 3, characterized in that: The diaphragm (300) includes an elastic portion (310) and a fixing portion (320); The elastic portion (310) is fixedly connected to the output end (410) of the transmission assembly (400); The fixing portion (320) is clamped on one side edge of the working cavity (500), and a clamping slot (510) having a size adapted to that of the fixing portion (320) is provided on one side edge of the working cavity (500).

5. A high-pressure multi-chamber pump according to claim 4, characterized in that: A plurality of liquid inlet through holes (520) and a plurality of liquid outlet through holes (530) are provided on one side of the working chamber (500).

6. A high-pressure multi-chamber pump according to claim 5, characterized in that: A liquid inlet control component (600) is further provided on one side of the working chamber (500). The liquid inlet control component (600) is located on one side of the liquid inlet through hole (520) and is used to prevent the fluid from flowing back after entering the working chamber (500).

7. A high-pressure multi-chamber pump according to claim 5, characterized in that: A liquid discharge control member (700) is provided on the liquid discharge cavity (120). The liquid discharge control member (700) is located on one side of each liquid discharge through hole (530) and is used to prevent the fluid from flowing back after entering the liquid discharge cavity (120).

8. A high-pressure multi-chamber pump according to claim 6, characterized in that: When liquid is introduced, the liquid inlet control member (600) is opened, and at this time the working chamber (500) is communicated with the liquid suction chamber (110).

9. A high-pressure multi-chamber pump according to claim 7, characterized in that: When liquid is discharged, the liquid discharge control member (700) is opened, and at this time the working chamber (500) is communicated with the liquid discharge chamber (120).

10. A high-pressure multi-chamber pump according to claim 4, characterized in that: The connecting component (200) includes a connecting pipe (210) and a pressure relief valve (220); One end of the connecting tube (210) is in communication with the drainage cavity (120), and the other end of the connecting tube (210) is in communication with the driving cavity (130); The pressure relief valve (220) is installed on the connecting pipe (210).

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