Integrated inflation and deflation integrated pump and sphygmomanometer

Abstract

The utility model relates to an integrated type air inflation and deflation integrated pump and sphygmomanometer, which comprises an upper shell, an elastic piece, a lower shell and a support, the elastic piece is located between the upper shell and the lower shell, a first air chamber is defined between the upper shell and the elastic piece, a second air chamber is defined between the elastic piece and the lower shell, and the first air chamber and the second air chamber are communicated with each other. The support is arranged at the bottom of the lower shell, and a leather cup is arranged between the support and the lower shell. The non-return elastic piece is arranged in the third air guide hole of the elastic piece to be matched with the air suction hole, the continuous air inflation function of the air pump is achieved, the number and the size of components are reduced, and the pure mechanical structure of the air pump is beneficial to saving energy.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, relate to a integrated type fills and exhausts integrated pump and sphygmomanometer. BACKGROUND

[0002] In prior art, before user uses electronic sphygmomanometer to carry out blood pressure measurement, needs to fill the air bag in the cuff or wrist strap to provide the measuring pressure, and needs to exhaust the compressed gas in the cuff or wrist strap air bag after completing blood pressure measurement. At present, electronic sphygmomanometer mainly realizes the inflation and deflation of cuff or wrist strap through the cooperation of inflation pump and electromagnetic valve. However, such design has some defects: first, the volume of inflation pump and electromagnetic valve is relatively large, which will increase the overall volume and manufacturing cost of sphygmomanometer;Second, inflation pump and electromagnetic valve consume electric energy when working, electromagnetic valve closes when energized and opens when de-energized, which increases the use cost of user;Finally, the valve core of electromagnetic valve is easy to fall off, which causes electromagnetic valve to be unable to normally open or close, and further will affect the performance and safety of equipment.

[0003] Prior art such as patent literature with publication number CN103767695A proposes a deflation valve, integrated air pump and electronic sphygmomanometer. Although the deflation valve can realize the opening and closing of normally open one-way valve and normally closed one-way valve, thereby realizing the functions of air intake and air exhaust, such functions depend on the elastic deformation of elastomer, and elastomer needs to play the roles of opening and closing air exhaust port and air hole in turn, which requires accurate control of the region of elastomer deformation and the sequence of deformation, not only increases the difficulty of product manufacturing process, but also increases the working load of elastomer and reduces its service life.

[0004] In addition, on the one hand, there are differences in understanding of the skilled person in the art, and on the other hand, the inventor has studied a large number of literatures and patents when making the utility model, but all the details and contents are not listed in detail due to the limited space, which is by no means that the utility model does not have the characteristics of prior art, on the contrary, the utility model has all the characteristics of prior art, and the applicant reserves the right to add relevant prior art in the background art. CONTENT OF THE UTILITY MODEL

[0005] In view of the deficiencies in the prior art, the present application proposes an integrated type filling and exhaust integrated pump and sphygmomanometer, especially an integrated pump integrated with a filling and exhaust air path structure suitable for electronic sphygmomanometer, aiming at solving one or more technical problems in the prior art.

[0006] The inflation and deflation of the electronic blood pressure meter is usually realized by cooperation between the inflation pump and the electromagnetic valve in the prior art, however, such arrangement not only increases the overall volume and manufacturing cost of the blood pressure meter, but also increases the use cost of the user due to the consumption of electric energy during the operation of the inflation pump and the electromagnetic valve, and affects the performance and safety of the equipment due to the easy loosening and falling of the valve core of the electromagnetic valve. The technical solution of trying to reduce the cost of the blood pressure meter by omitting the electromagnetic valve has appeared in the prior art. For example, the patent document with publication number CN212360134U discloses a rapid pressure relief integrated diaphragm pump. The technical solution considers the size of the gas pressure and the size of the acting area, and controls the opening and closing of the pressure relief hole by the pressure difference between the lower surface of the first center piece and the upper surface of the second center piece. However, the lower surface of the second center piece and the upper surface of the first center piece need to be attached together in the natural state, which leads to the fact that the diaphragm acting mode in the specific inflation and deflation process is obviously different from the existing technical means. When the inflation is stopped, the gas pressure on the lower surface of the first center piece needs to be reduced to atmospheric pressure through the additional pressure reduction microchannel, so that the device can perform the pressure relief process.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an integrated inflation and deflation integrated pump, comprising a driving member for generating gas and a gas path structure for gas flow, the gas path structure comprises: an upper shell, an elastic member, a lower shell and a support;

[0008] The elastic member is located between the upper shell and the lower shell, and the upper shell and the elastic member define a first gas chamber, and the elastic member and the lower shell define a second gas chamber;

[0009] A sunken cavity is formed on the upper surface of the lower shell, an insertion slot is formed on the outer side of the sunken cavity, a first gas guide cavity is arranged on one side of the sunken cavity, a first annular protrusion is arranged in the first gas guide cavity, the center of the first annular protrusion is a cavity structure, an air inlet hole is arranged in the center of the sunken cavity, a second gas guide cavity and a third gas guide cavity are symmetrically arranged on the upper and lower sides of the air inlet hole, a first protruding column is arranged in the second gas guide cavity, a second protruding column is arranged in the third gas guide cavity, a vertical groove is arranged on the circumferential surface of the second protruding column, the height of the second protruding column is higher than the upper surface of the lower shell, and the second gas guide cavity and the third gas guide cavity are communicated with the first gas guide cavity through first gas guide grooves respectively;

[0010] The lower shell lower surface is provided with three disc protrusions, the three disc protrusions are symmetrically arranged along the air inlet hole, each disc protrusion edge is provided with a notch, the notch extends to form a notch cavity, each notch cavity is provided with an arc cavity outside, a gap cavity is arranged between the adjacent three disc protrusions, the gap cavity is communicated with the arc cavity, the depth of the gap cavity is greater than the depth of the arc cavity, and the lower shell lower surface edge is uniformly provided with three cylinders.

[0011] The upper shell is provided with an exhaust hole penetrating through the surface and surrounding the gas storage device and a gas discharge hole communicated with the outside atmosphere, the upper shell bottom corresponding to the gas discharge hole is provided with a gas discharge cavity, the gas discharge hole is arranged in the gas discharge cavity, the upper shell outside is provided with a convex ridge, the convex ridge is matched with the insertion slot and can be inserted and connected.

[0012] The support is arranged on the lower shell bottom, the disc protrusion corresponding to the support position is provided with a through hole, the adjacent through holes are provided with a second check valve concave cavity matched with a second check valve, the second check valve concave cavity is provided with a jacking column, the cylinder corresponding to the support position is provided with a perforation, the perforation outside is provided with a support ridge, and the support and the lower shell are provided with a leather cup.

[0013] Further, the lower shell left side edge is provided with a positioning block for positioning the elastic member, the positioning block is provided with a semicircular groove on the side facing the elastic member, and the insertion slot is provided with a protruding part for positioning the elastic member.

[0014] Further, the elastic member is provided with an air bag capable of being elastically deformed at a position corresponding to the first gas guide cavity and the gas discharge cavity, the air bag capable of being elastically deformed at a larger amount than the elastic member can be inflated to block the gas discharge cavity when the second gas chamber is filled with gas, and can be restored under the action of elasticity to open the gas discharge cavity when the second gas chamber is not filled with gas.

[0015] Further, the elastic member is provided with a circular concave cavity at a position corresponding to the second gas guide cavity, the circular concave cavity is provided with a first gas guide hole, the elastic member is provided with a second gas guide hole at a position corresponding to the third gas guide cavity, the first gas guide hole and the second gas guide hole are provided with a third gas guide hole on the right side, and the third gas guide hole is provided with a first check valve.

[0016] Further, the circular concave cavity is provided with a first containing cavity at a position corresponding to the upper shell, the second gas guide hole is provided with a second containing cavity at a position corresponding to the upper shell, the third gas guide hole is provided with a third containing cavity at a position corresponding to the upper shell, the first containing cavity is communicated with the air inlet hole, the second containing cavity is communicated with the air inlet hole, the gas discharge cavity is communicated with the air inlet hole, and the third containing cavity is communicated with the second containing cavity.

[0017] Further, the third air guide hole is an arched semicircular structure, and the first reverse stopping elastic sheet is an arched semicircular structure.

[0018] Further, the second air guide hole and the third air guide hole are both provided with a sealing line and connected through the sealing line.

[0019] Further, the leather cup is provided with a leather cup cavity with an elastic deformation amount at a position corresponding to the through hole, and is provided with a second reverse stopping elastic sheet at a position corresponding to the second reverse stopping elastic sheet cavity.

[0020] Further, the elastic member is provided with elasticity at least in a region near the first air guide hole, so that the hole wall of the first air guide hole is in close contact with the side wall of the first convex column in a manner suitable for the shape and size of the first convex column.

[0021] A sphygmomanometer comprises an air pump, a pressure sensor, and a cuff or a wristband.

[0022] The utility model has the advantages of:

[0023] 1. The utility model discloses a reverse stopping elastic sheet and an air inlet hole are arranged in the third air guide hole of the elastic member to realize the continuous inflation function of the air pump, reduce the number and size of components, and the pure mechanical structure is beneficial to energy saving.

[0024] 2. The utility model cancels the use of electromagnetic valve to control the work of the inflation pump, reduces the electric energy consumption, reduces the use cost of the user, guarantees the performance and safety of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model discloses a lower shell upper surface structure schematic diagram;

[0026] Figure 2 The utility model discloses a lower shell lower surface structure schematic diagram;

[0027] Figure 3 The utility model discloses an upper shell upper surface structure schematic diagram;

[0028] Figure 4 The utility model discloses an elastic member structure schematic diagram;

[0029] Figure 5 The utility model discloses a support and leather cup part structure schematic diagram;

[0030] Figure 6 The utility model discloses a part structure section schematic diagram.

[0031] LEGEND:

[0032] 100: upper housing; 110: first air chamber; 120: exhaust hole; 130: air release hole; 200: lower housing; 201: sunken cavity; 202: insertion slot; 209: positioning block; 210: first annular protrusion; 220: first protruding column; 221: second protruding column; 230: second air chamber; 240: air inlet hole; 250: air channel; 260: third air guide cavity; 270: second air guide cavity; 280: first positioning protrusion; 290: first air guide cavity; 300: sealing gasket; 320: second air guide hole; 330: air bag; 340: circular concave cavity; 350: second check spring; 360: sealing line; 370: first air guide hole; 380: third air guide hole; 400: leather cup; 410: leather cup cavity; 420: second check spring; 500: support; 510: through hole; 520: top column; 530: second check spring concave cavity; 540: support ridge; 550: perforation. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] The utility model relates to a kind of integrated type inflation and deflation integrated pump, for the inflation and deflation of gas storage equipment, including the driving member for generating gas and the gas path structure for gas circulation. When gas storage equipment needs to be inflated, driving member can pump the gas in the atmosphere outside into the gas path structure, gas flows through gas path structure and finally enters gas storage equipment to complete the inflation of gas storage equipment;When gas storage equipment needs to be deflated, driving member stops pumping gas to gas path structure, and the pressure gas in gas storage equipment flows back to gas path structure and flows out from the air release hole of gas path structure to complete the deflation of gas storage equipment. Specifically, driving member can be selected as including piston and driving motor gas generation device, piston can reciprocate under the impetus of driving motor, to generate gas continuously. During the inflation of gas storage equipment, gas will enter from air inlet hole 210 connected with driving member, and finally flow out from exhaust hole 120 connected with gas storage equipment. As shown in the drawings, the utility model discloses a kind of integrated type inflation and deflation integrated pump, including upper housing 100, first air chamber 110, exhaust hole 120, air release hole 130, lower housing 200, sunken cavity 201, insertion slot 202, positioning block 209, first annular protrusion 210, first protruding column 220, second protruding column 221, second air chamber 230, air inlet hole 240, air channel 250, third air guide cavity 260, second air guide cavity 270, first positioning protrusion 280, first air guide cavity 290, sealing gasket 300, second air guide hole 320, air bag 330, circular concave cavity 340, second check spring 350, sealing line 360, first air guide hole 370, third air guide hole 380, leather cup 400, leather cup cavity 410, second check spring 420, support 500, through hole 510, top column 520, second check spring concave cavity 530, support ridge 540, perforation 550. Figures 1-6As shown, the gas path structure includes an upper shell 100, an elastic member 300, a lower shell 200 and a support 500; the upper shell 100 is provided with an exhaust hole 120 penetrating through the surface thereof and externally connecting the gas storage device, and a gas leakage hole 130 communicating with the outside atmosphere, the gas leakage hole 130 is provided with a gas leakage cavity corresponding to the bottom of the upper shell 100, and the gas leakage hole 130 is arranged in the gas leakage cavity; wherein the exhaust hole 120 can be connected with the gas storage device (not shown in the figure), and the gas leakage hole 130 is in communication with the outside atmosphere, the outer side of the upper shell 100 is provided with a convex ridge, the convex ridge is matched with the insertion slot and can be inserted and connected. Preferably, the gas storage device can be selected as the gas bag in the wrist strap or the sleeve connected with the electronic sphygmomanometer.

[0035] The elastic member 300 is located between the upper shell 100 and the lower shell 200, the first gas chamber 110 is defined between the upper shell 100 and the elastic member 300, the exhaust hole 120 and the gas leakage hole 130 are arranged in the first gas chamber 110, the elastic member 300 and the lower shell 200 define a second gas chamber 230, the gas inlet hole 240 is arranged in the second gas chamber 230, and the gas inlet hole 240 is connected with the driving member (not shown in the figure).

[0036] The upper surface of the lower shell 200 is provided with a sunken cavity 201, the outer side of the sunken cavity 201 is provided with an insertion slot 202, one side of the sunken cavity 201 is provided with a first air guide cavity 290, the first air guide cavity 290 is provided with a first annular protrusion 210, the center of the first annular protrusion 210 is a cavity structure, the sunken cavity is provided with a gas inlet hole 240 in the center, the upper and lower sides of the gas inlet hole 240 are symmetrically provided with a second air guide cavity 270 and a third air guide cavity 260, the second air guide cavity 270 is provided with a first protruding column 220, the third air guide cavity 260 is provided with a second protruding column 221, the peripheral surface of the second protruding column 221 is provided with a vertical groove 222, the height of the second protruding column 221 is higher than the upper surface of the lower shell 200, the second air guide cavity 270 and the third air guide cavity 260 are respectively communicated with the first air guide cavity 290 through a first air guide groove 250, the lower surface of the lower shell 200 is provided with three disc protrusions 207, the three disc protrusions 207 are symmetrically arranged along the gas inlet hole 240, the edge of each disc protrusion 207 is provided with a notch 204, the notch 204 extends to form a notch cavity 205, the outer side of each notch cavity 205 is provided with an arc cavity 206, the gap between the adjacent three disc protrusions 207 is provided with a gap cavity 203, the gap cavity 203 is communicated with the arc cavity 206, the depth of the gap cavity 203 is greater than the depth of the arc cavity 206, and the lower surface of the lower shell 200 is uniformly provided with three cylinder bodies 208.

[0037] When the gas generated by the driver flows from the air inlet 240 into the second air chamber 230, the integrated pump is in the inflation phase. The airbag 330, located on the top surface of the elastic member 300, elastically deforms (i.e., expands) toward the top surface of the upper housing 100, blocking the air leakage hole 130. At this point, the elastic member 300, with the airbag 330 in its inflated state, is positioned at the first predetermined position. Gas entering the first air chamber 110 from the second and third air guide cavities 270 and 260 cannot be discharged through the air leakage hole 130 and can only flow through the exhaust hole 120 and into the gas storage device. The integrated pump thus completes the inflation of the gas storage device. When the driving member stops generating gas, the integrated pump enters the deflation phase, and the airbag 330 recovers its shape (i.e., contracts) to open the deflation hole 130, allowing the gas within the gas storage device to flow through the exhaust hole 120 and out of the deflation hole 130 to complete the deflation. At this time, the position of the elastic member 300 with the airbag 330 in the deflated state is the second predetermined position. In other words, the first predetermined position and the second predetermined position differ only at the airbag 330 of the elastic member 300, while the remaining area of ​​the elastic member 300 remains in the relative position to the second gas guide cavity 270 and the third gas guide cavity 260. Under such a setting, the second air guide cavity 270 and the third air guide cavity 260 not only serve to establish a passage between the first air chamber 110 and the second air chamber 230, but also limit the relative position of the remaining area of ​​the elastic member 300 except the airbag 330, thereby avoiding the problem that the expansion and contraction of the airbag 330 under the same deformation amount cannot block the air leakage hole 130 or cannot completely leave the air leakage hole 130 due to the change of the predetermined position of the elastic member 300 itself, thereby ensuring the efficiency of inflation and deflation.

[0038] The support 500 is arranged at the bottom of the lower shell 200, and the disc protrusion 207 is provided with a through hole 510 at the position corresponding to the support 500, and a second anti-return spring cavity 530 matching the second anti-return spring 420 is provided between adjacent through holes 510, and a top column 520 is provided in the second anti-return spring cavity 530, and the cylinder 208 is provided with a through hole 550 at the position corresponding to the support 500, and a supporting rib 540 is provided on the outside of the through hole 550, and a leather cup 400 is provided between the support 500 and the lower shell 200.

[0039] Specifically, a positioning block 209 for positioning the elastic member 300 is provided on the left edge of the lower shell 200 , and a semicircular groove is provided on the positioning block 209 toward the elastic member 300 . A protrusion 280 for positioning the elastic member 300 is provided on the slot 202 .

[0040] The cooperation of the positioning block 209 and the protrusion 280 can define the installation direction of the elastic piece 300, so that the elastic piece 300 can be quickly and correctly installed on the lower shell 200, thereby improving the installation efficiency and the stability of the connection between the components.

[0041] Specifically, the elastic piece 300 is provided with the air bag 330 capable of elastic deformation at a position corresponding to the first air guide cavity 290 and the air release cavity, and the air bag 330 with a larger elastic deformation amount than the elastic piece 300 can be inflated to block the air release cavity when the second air chamber 230 is filled with gas, and can restore under the action of elasticity to open the air release cavity when the second air chamber 230 is not filled with gas.

[0042] Specifically, the elastic piece 300 is provided with a circular recess 340 at a position corresponding to the second air guide cavity 270, the circular recess 340 is provided with a first air guide hole 370, the elastic piece 300 is provided with a second air guide hole 320 at a position corresponding to the third air guide cavity 260, the first air guide hole 370 and the second air guide hole 320 are provided with a third air guide hole 380 on the right side, and the third air guide hole 380 is provided with a first anti-reverse elastic sheet 350.

[0043] The top of the air bag 330 is closed and provided with a notch with a surface parallel to the plane where the hole of the air release hole 130 is located, and the surface area of the notch is larger than the cross-sectional area of the air release hole 130. When the air bag 330 is inflated, the notch will replace the curved surface of the air bag 330 around the notch to contact the bottom of the air release hole 130. The relatively flat notch structure can improve the tightness of the air release hole 130, thereby avoiding the leakage caused by the curvature of the top surface of the air bag 330.

[0044] Specifically, the circular recess 340 is provided with a first containing cavity at a position corresponding to the upper shell 100, the second air guide hole 320 is provided with a second containing cavity at a position corresponding to the upper shell 100, the third air guide hole 380 is provided with a third containing cavity at a position corresponding to the upper shell 100, the first containing cavity is in communication with the air inlet hole 240, the second containing cavity is in communication with the air inlet hole 240, the air release cavity is in communication with the air inlet hole 240, and the third containing cavity is in communication with the second containing cavity.

[0045] Specifically, the third air guide hole 380 is in the shape of an arched semicircle, and the first anti-reverse elastic sheet 350 is in the shape of an arched semicircle.

[0046] Specifically, the second air guide hole 320 and the third air guide hole 380 are each provided with a sealing line 360 and connected through the sealing line 360.

[0047] Specifically, the skin bowl 400 is provided with a skin bowl cavity 410 capable of elastic deformation at a position corresponding to the through hole 510, and the skin bowl 400 is provided with a second reverse-stopping elastic piece 420 at a position corresponding to the second reverse-stopping elastic piece recess 530.

[0048] Specifically, the elastic member 300 has elasticity at least in the vicinity of the first air guide hole 370 provided thereon, so that the hole wall of the first air guide hole 370 is fitted to the side wall of the first convex column 220 in a manner suitable for the shape and size of the first convex column 220.

[0049] When the integrated pump needs to inflate the gas storage device, in order to increase the gas pressure in the second gas chamber 230, the driving member (not shown in the figure) connected to the air inlet hole 210 operates and continuously generates gas, which enters the second air guide cavity 270 and the third air guide cavity 260 through the air inlet hole 240, and communicates with the first air guide cavity 290 through the first air guide groove 250 connected to the second air guide cavity 270 and the third air guide cavity 260, and gradually fills the entire second gas chamber 230. As the amount of gas entering the second gas chamber 230 gradually increases, the gas pressure in the second gas chamber 230 increases, a small amount of gas enters the first gas chamber 110 through the first air guide hole 370 and the second air guide hole 320, and most of the gas remains in the second gas chamber 230, causing the air bag 330 on the elastic member 300 to expand. The top notch of the continuously expanding air bag 330 will eventually block the air outlet hole 130 in the upper shell 100, at which point the expansion of the air bag 330 reaches the maximum, and the gas generated by the driving member will all enter the first gas chamber 110 through the first air guide hole 370 and the second air guide hole 320. Since the air outlet hole 130 is blocked, the gas entering the first gas chamber 110 will enter the gas storage device through the air outlet hole 120 of the shell 100, for example, into the air bag in the electronic blood pressure meter wristband or sleeve, for subsequent blood pressure measurement work.

[0050] When the integrated pump needs to deflate the gas storage device, in order to reduce the gas pressure in the second gas chamber 230, the driving member stops generating gas, which causes the air inlet hole 240 to be blocked by the reverse-stopping elastic piece 350 that has recovered its shape due to the lack of gas flow. At this time, the gas in the gas storage device with a relatively higher gas pressure than that in the second gas chamber 230 will flow back to the first gas chamber 110 and increase the gas pressure in the first gas chamber 110, which causes the expanded air bag 330 to gradually contract and expose the air outlet hole 130. The gas in the first gas chamber 110 will be discharged through the air outlet hole 130 to achieve the purpose of rapid deflation.

[0051] A blood pressure meter comprising a gas pump, a pressure sensor, and a sleeve or a wristband.

[0052] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. An integrated gas-inflating and deflation pump, comprising a driving member for generating gas and a gas path structure for gas circulation, characterized in that: The air path structure comprises: an upper shell (100), an elastic member (300), a lower shell (200) and a support (500); The elastic member (300) is located between the upper shell (100) and the lower shell (200); a first air chamber (110) is defined between the upper shell (100) and the elastic member (300); and a second air chamber (230) is defined between the elastic member (300) and the lower shell (200); A sinking cavity (201) is provided on the upper surface of the lower shell (200), a slot (202) is provided on the outer side of the sinking cavity (201), a first air guide cavity (290) is provided on one side of the sinking cavity (201), a first annular protrusion (210) is provided in the first air guide cavity (290), the center of the first annular protrusion (210) is a cavity structure, an air inlet (240) is provided at the center of the sinking cavity, and second air guide cavities (270) are symmetrically provided on the upper and lower sides of the air inlet (240). and a third air guide cavity (260), a first convex column (220) is provided in the second air guide cavity (270), a second convex column (221) is provided in the third air guide cavity (260), a vertical groove (222) is provided on the circumference of the second convex column (221), the height of the second convex column (221) is higher than the upper surface of the lower shell (200), and the second air guide cavity (270) and the third air guide cavity (260) are respectively connected to the first air guide cavity (290) through the first air guide groove (250); The lower surface of the lower shell (200) is provided with three disc protrusions (207), and the three disc protrusions (207) are symmetrically arranged along the air inlet (240). A notch (204) is provided at the edge of each disc protrusion (207), and the notch (204) extends to form a notch cavity (205). An arc-shaped cavity (206) is provided on the outside of each notch cavity (205). A gap cavity (203) is provided in the gap between the three adjacent disc protrusions (207), and the gap cavity (203) is communicated with the arc-shaped cavity (206). The depth of the gap cavity (203) is greater than the depth of the arc-shaped cavity (206). Three cylinders (208) are evenly provided at the edge of the lower surface of the lower shell (200); The upper shell (100) is provided with an exhaust hole (120) penetrating the surface thereof and connected to an external gas storage device, and an air leakage hole (130) communicating with the outside atmosphere; an air leakage cavity is provided at the bottom of the upper shell (100) corresponding to the air leakage hole (130); the air leakage hole (130) is arranged in the air leakage cavity; and convex ridges are provided on the outer side of the upper shell (100); the convex ridges match the slots and can be plugged in and connected; The support (500) is arranged at the bottom of the lower shell (200), the disc protrusion (207) is provided with a through hole (510) at a position corresponding to the support (500), a second anti-return spring plate cavity (530) matching the second anti-return spring plate (420) is provided between adjacent through holes (510), a top column (520) is provided in the second anti-return spring plate cavity (530), the cylinder (208) is provided with a through hole (550) at a position corresponding to the support (500), a supporting rib (540) is provided on the outside of the through hole (550), and a leather cup (400) is provided between the support (500) and the lower shell (200).

2. The integrated inflation and deflation pump according to claim 1, characterized in that: A positioning block (209) for positioning the elastic member (300) is provided on the left edge of the lower shell (200), a semicircular groove is provided on the side of the positioning block (209) facing the elastic member (300), and a protrusion (280) for positioning the elastic member (300) is provided on the slot (202).

3. The integrated inflation and deflation pump according to claim 2, characterized in that: The elastic member (300) is provided with an air bag (330) capable of generating an elastic deformation at positions corresponding to the first air guide cavity (290) and the air leakage cavity. The air bag (330) having an elastic deformation greater than that of the elastic member (300) can expand to block the air leakage cavity when the second air chamber (230) is filled with gas, and can recover under elastic action to open the air leakage cavity when the second air chamber (230) is not filled with gas.

4. The integrated inflation and deflation pump according to claim 1, characterized in that: The elastic member (300) is provided with a circular concave cavity (340) at a position corresponding to the second air guide cavity (270), and a first air guide hole (370) is provided in the circular concave cavity (340). The elastic member (300) is provided with a second air guide hole (320) at a position corresponding to the third air guide cavity (260), and a third air guide hole (380) is provided on the right side of the first air guide hole (370) and the second air guide hole (320), and a first anti-return spring (350) is provided in the third air guide hole (380).

5. The integrated inflation and deflation pump according to claim 4, characterized in that: The circular concave cavity (340) is provided with a first accommodating cavity at a position corresponding to the upper shell (100), the second air guide hole (320) is provided with a second accommodating cavity at a position corresponding to the upper shell (100), and the third air guide hole (380) is provided with a third accommodating cavity at a position corresponding to the upper shell (100), the first accommodating cavity is communicated with the air inlet hole (240), the second accommodating cavity is communicated with the air inlet hole (240), the air release cavity is communicated with the air inlet hole (240), and the third accommodating cavity is communicated with the second accommodating cavity.

6. The integrated inflation and deflation pump according to claim 4, characterized in that: The third air guide hole (380) is an arched semicircular structure, and the first anti-return spring (350) is an arched semicircular structure.

7. The integrated inflation and deflation pump according to claim 4, characterized in that: The second air guide hole (320) and the third air guide hole (380) are both provided with sealing lines (360) on their outer sides and are connected via the sealing lines (360).

8. The integrated inflation and deflation pump according to claim 2, characterized in that: The leather cup (400) is provided with a leather cup cavity (410) capable of generating elastic deformation at a position corresponding to the through hole (510), and the leather cup (400) is provided with a second anti-return spring piece (420) at a position corresponding to the second anti-return spring piece cavity (530).

9. The integrated inflation and deflation pump according to claim 4, characterized in that: The elastic member (300) has elastic force at least in the vicinity of the first air guide hole (370) provided thereon, so that the hole wall of the first air guide hole (370) fits with the side wall of the first convex column (220) in a manner adapted to the shape and size of the first convex column (220).

10. A blood pressure monitor having an integrated inflation and deflation pump according to any one of the preceding claims, characterized in that: Includes an air pump, pressure sensor, and cuff or wristband.

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