CN209915973U - Air leakage device and sphygmomanometer - Google Patents
Air leakage device and sphygmomanometer Download PDFInfo
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- CN209915973U CN209915973U CN201920183432.9U CN201920183432U CN209915973U CN 209915973 U CN209915973 U CN 209915973U CN 201920183432 U CN201920183432 U CN 201920183432U CN 209915973 U CN209915973 U CN 209915973U
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Abstract
The utility model relates to the technical field of human body index measuring devices, and provides a gas leakage device and a sphygmomanometer, wherein the gas leakage device comprises a shell, a gas collection cavity is arranged in the shell, the side wall of the shell is provided with a gas inlet hole for communicating with an inflation device and a gas leakage hole for communicating with the outside, and the gas inlet hole and the gas leakage hole are both communicated with the gas collection cavity; the air inlet hole and the air release hole are arranged on the same side of the shell, a fulcrum is arranged on the inner side wall of the shell between the air inlet hole and the air release hole, a lever is rotatably arranged on the fulcrum and comprises a first force arm and a second force arm which are respectively connected to two sides of the fulcrum, the end part of the first force arm is opposite to and used for sealing the air inlet hole, and the end part of the second force arm is opposite to and used for sealing the air release hole; the sphygmomanometer comprises the air leakage device, a measuring device and a pressure sensing device, wherein the measuring device and the pressure sensing device are connected with the air leakage device; the utility model discloses an it is disappointing device and sphygmomanometer have the self-bleeding function, its simple structure and need not power consumptively.
Description
Technical Field
The utility model belongs to the technical field of human index measuring device, more specifically say, relate to an it is disappointing device and sphygmomanometer.
Background
With the advancement of science and technology and the importance of human health, various sphygmomanometers are available on the market. The main structure of the existing sphygmomanometer is that a main body is connected with a cuff or a wrist strap for measuring the blood pressure value; the main body of the sphygmomanometer generally comprises a pressure sensor, an air leakage device and a pressurizing device. After the measurement is completed by the sphygmomanometer, all of the compressed gas in the cuff or the cuff airbag needs to be discharged, and the compressed gas needs to be rapidly discharged in case of an abnormal situation for safety. A drawback of the current venting devices in blood pressure meters is the need to use electrical power to drive the venting device, which consumes electrical power.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an it is disappointing device and sphygmomanometer to solve the technical problem that the disappointing device power consumption of the sphygmomanometer that exists among the prior art is too big.
In order to achieve the above object, the technical solution adopted by the present invention is to provide a gas release device, which comprises a casing with a gas collecting cavity inside, wherein the side wall of the casing is provided with a gas inlet hole for communicating with an inflation device and a gas release hole for communicating with the outside, and the gas inlet hole and the gas release hole are both communicated with the gas collecting cavity; the inlet port with the hole of disappointing set up in the homonymy of casing, the inside wall of casing in the inlet port with be provided with the fulcrum between the hole of disappointing, it is provided with the lever to rotate on the fulcrum, the lever including connect respectively in the first arm of force of fulcrum both sides and the second arm of force, keeping away from of the first arm of force the tip of the one end of the second arm of force is just right and be used for sealing the inlet port, keeping away from of the second arm of force the tip of the one end of the first arm of force is just right and be used for sealing the hole of disappoint.
Further, the length of the first moment arm is greater than the length of the second moment arm.
Further, the length of the first moment arm is equal to the length of the second moment arm.
Furthermore, a first elastic piece which drives the end part of the first force arm to move towards the direction close to the air inlet hole is arranged between the first force arm and the shell.
Furthermore, a second elastic part for driving the end part of the second force arm to move towards the direction far away from the air release hole is arranged between the second force arm and the shell.
Further, a first magnetic piece used for attracting the first force arm is arranged on the shell body corresponding to the first force arm.
Further, the inside wall of casing is outstanding to be formed with first boss and second boss, the inlet port set up in on the first boss, the hole of disappointing set up in on the second boss.
Further, the first force arm and the second force arm are plate-shaped.
Furthermore, the inner side wall of the shell is further provided with a first air outlet hole used for being communicated with the measuring device and a second air outlet hole used for being communicated with the pressure sensing device.
Another object of the present invention is to provide a sphygmomanometer, comprising the above air leakage device, and a measuring device, a pressure sensing device and an inflation device connected to the air leakage device respectively.
The utility model provides an it is disappointing device and sphygmomanometer has following beneficial effect:
when the air inlet admits air toward the air collecting cavity, the first force arm is pushed away, the rotating force is transmitted to the second force arm through the rotating shaft fulcrum, the end part of the second force arm supports against and seals the air release hole, along with continuous air admission, the pressure in the air collecting cavity is continuously increased, when the air inlet stops air admission, the pressure in the air collecting cavity is greater than the pressure of the air inlet, the pressure in the air collecting cavity acts on the first force arm, the first force arm moves towards the air inlet, and the end part of the first force arm supports against and seals the air inlet, meanwhile, due to the lever principle, the second force arm moves towards the direction far away from the air release hole by taking the fulcrum as an axis, the air release hole is opened and communicated with the outside. Therefore, the function of mutual switching between air intake and air discharge is realized by arranging the lever, the structure is simple, and electric energy consumption is not needed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a first embodiment of the present invention showing a venting device when air is introduced into an air inlet;
FIG. 2 is a schematic view of the air bleed device according to the first embodiment of the present invention when the air intake hole stops;
FIG. 3 is a schematic view of a second embodiment of the present invention showing a structure of a gas release device;
FIG. 4 is a schematic view of another embodiment of the run-flat device according to the present invention;
fig. 5 is a schematic structural diagram of a sphygmomanometer provided by an embodiment of the present invention.
The figures are numbered:
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16 | |
112 |
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11 | First force arm | 161 | A |
19 |
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12 | |
162 | |
20 |
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13 | First |
17 | |
2 |
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14 | Second |
18 | |
3 |
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4 |
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected or indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention, and are not intended to indicate that a device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as indicating a number of technical features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The following describes the specific implementation of the present invention in more detail with reference to specific embodiments:
fig. 1 to 5 show a gas leakage device according to an embodiment of the present invention.
As shown in fig. 1, the embodiment of the present invention provides an air leakage device 1, in which the air leakage device 1 is used for setting on the cavity of the device and discharging the high-pressure gas in the cavity in time, and can be used in a sphygmomanometer.
The air leakage device 1 comprises a shell 11, wherein a gas collection cavity 12 is arranged inside the shell 11, and an air inlet 13 and an air leakage hole 14 which are communicated with the gas collection cavity 12 are arranged on the surface of the shell 11;
the gas collecting cavity 12 is used for receiving gas conveyed from other devices and transferring the gas out; the air inlet hole 13 and the air release hole 14 are both arranged on the side wall of the shell 11 and penetrate through the side wall of the shell 11, the air inlet hole 13 is used for being communicated with an inflating device such as an inflating pump, and the air release hole 14 is used for being connected with a measuring device such as a cuff;
the air inlet 13 and the air release hole 14 are arranged on the same side of the shell 11, namely, both are arranged on the same side wall of the shell 11; the air release device 1 further comprises a fulcrum 15 arranged on the shell 11, the fulcrum 15 is positioned between the air inlet hole 13 and the air release hole 14, a lever 16 is rotatably arranged on the fulcrum 15, the lever 16 comprises a first force arm 161 and a second force arm 162 which are respectively connected with the pivot 15 in a rotating way, the end of the first force arm 161 far away from the end of the second force arm 162 is opposite to and used for sealing the air inlet hole 13, the end of the second force arm 162 far away from the end of the first force arm 161 is opposite to and used for sealing the air release hole 14, when one force arm moves, the other force arm moves reversely, that is, when the end of the first force arm 161 moves closer to the air inlet hole 13 and seals the air inlet hole 13, the end of the second force arm 162 moves oppositely away from the air release hole 14, unblocks the air release hole 14, and vice versa, when the second force arm 162 approaches the discharge hole 14, the first force arm 161 is far away from the inlet hole 13. Preferably, the first and second force arms 161, 162 are integrally formed to simplify the structure and save cost.
The operation principle of the air leakage device 1 provided by the embodiment is as follows:
as shown in fig. 1, when the inflator admits air into the air collecting chamber 12 through the air inlet 13, the first force arm 161 is pushed away, that is, the air inlet 13 is unsealed, air enters the air collecting chamber 12 from the air inlet 13, the rotating force of the first force arm 161 is transmitted to the second force arm 162 through the rotating shaft fulcrum 15, the second force arm 162 moves towards the air release hole 14 and the end thereof abuts against and seals the air release hole 14, and the pressure in the air collecting chamber 12 increases continuously with continuous admission of air;
as shown in fig. 2, when the air inlet 13 stops air inlet, the pressure in the air collecting chamber 12 is greater than the pressure in the air inlet 13, the pressure in the air collecting chamber 12 acts on the first force arm 161, the first force arm 161 moves towards the air inlet 13, and the end of the first force arm 161 abuts against and seals the air inlet 13, meanwhile, due to the lever 16 principle, the second force arm 162 moves away from the air release hole 14 with the fulcrum 15 as an axis, the air release hole 14 is opened and communicated with the outside, and the high-pressure air in the air collecting chamber 12 is discharged to the outside;
when the high-pressure air pressure in the air collecting cavity 12 is completely discharged and the air pressure in the air collecting cavity 12 is equal to the outside, the air charging device can charge air into the air collecting cavity 12 through the air inlet 13 again.
The air leakage device 1 provided by the embodiment has the following beneficial effects:
the function of switching between air intake and air discharge is realized by providing the lever 16, which is simple in structure and does not consume electric energy.
As shown in FIG. 1, in the first embodiment, specifically, the first force arm 161 is longer than the second force arm 162. When the air inlet 13 stops air intake, the high-pressure air in the air collecting cavity 12 generates the same pressure and is simultaneously applied to the first force arm 161 and the second force arm 162, the moment of the first force arm 161 is greater than the moment of the second force arm 162, so that the first force arm 161 rotates close to the air inlet 13 and finally abuts against the air inlet 13 and is sealed under the action of pressure, the second force arm 162 rotates away from the air release hole 14, the state of being separated from the air release hole 14 is maintained, namely the air release hole 14 is unlocked, and the high-pressure air in the air collecting cavity 12 can be discharged out of the outside through the air release hole 14.
In the second embodiment, as shown in fig. 3, in particular, the length of the first force arm 161 is equal to the length of the second force arm 162.
Optionally, a first elastic member 17 is disposed between the first force arm 161 and the housing 11, the first elastic member 17 is used for driving the end of the first force arm 161 to move toward the air inlet 13, and by disposing the first elastic member 17 on the first force arm 161, the end of the first force arm 161 can quickly return to cover the air inlet 13 when stopping air intake, and simultaneously the end of the second force arm 162 can quickly unseal the air outlet 14 for air exhaust. Specifically, one end of the first elastic member 17 is fixed on the inner side wall of the housing 11, the other end thereof is fixed on the first force arm 161, and the first elastic member 17 keeps a tensioned state, that is, a state of pulling back and covering the first force arm 161 on the air inlet 13 is kept, the air inlet 13 keeps a sealed state when air is not introduced into the air inlet 13, when the air is introduced into the air inlet 13, the air pressure overcomes the pulling force of the first elastic member 17 and pushes away the first force arm 161, when the air is not introduced into the air inlet 13 any more, the first force arm 161 is pulled by the first elastic member 17 to approach and cover the air inlet 13, at this time, the second force arm 162 moves oppositely, and is far away from and uncovers the air release hole 14, and high-pressure air is discharged from the air release hole 14.
Optionally, a second elastic member 18 for urging the end of the second force arm 162 to move away from the air release hole 14 is disposed between the second force arm 162 and the housing 11. By providing the second elastic member 18 on the second arm 162, the end of the second arm 162 is quickly separated from the air release hole 14 to exhaust air when the air intake is stopped. Specifically, when the air inlet 13 is not used for air intake, one end of the second elastic element 18 is fixed on the inner side wall of the housing 11, the other end of the second elastic element 18 is fixed on the second force arm 162, and the second elastic element 18 is kept in a compressed state, that is, the second force arm 162 is pushed in a direction away from the air release hole 14, meanwhile, the pushing force is transmitted to the first force arm 161, the first force arm 161 moves oppositely, moves towards the air inlet 13 and covers the air inlet 13, and when the air inlet 13 is not used for air intake, the air release hole 14 is kept in a deblocking state; when the air inlet hole 13 is filled with air, the air pressure overcomes the pushing force of the second elastic piece 18 and pushes away the first force arm 161, the air inlet hole 13 is unsealed, and the air release hole 14 is sealed; when the air inlet hole 13 is not filled with air any more, the second force arm 162 is pushed by the second elastic member 18, the second force arm 162 is far away from the air release hole 14 and unblocks the air release hole 14, and high-pressure air is discharged from the air release hole 14.
Alternatively, as shown in fig. 4, a first magnetic member 163 for attracting the first force arm 161 is disposed on the housing 11 corresponding to the first force arm 161. Specifically, the material of the first force arm 161 is magnetic or can be attracted by magnetic force, under the attraction of the first magnetic member 163, the end of the first force arm 161 maintains the state of covering the air inlet 13, when the air inlet 13 starts to intake air, the pressure of the air overcomes the attraction of the first magnetic member 163 to push the first force arm 161 open, and the air inlet 13 is unsealed; when the air inlet hole 13 stops air intake, the first magnetic member 163 attracts the first force arm 161 to move toward the air inlet hole 13 to cover and seal the air inlet hole 13, and simultaneously, the second force arm 162 unseals the air release hole 14, and the high-pressure air in the air collecting cavity 12 is discharged from the air release hole 14.
Similarly, a first elastic member 17 may be disposed between the first force arm 161 and the housing 11 in the first embodiment, or a second elastic member 18 may be disposed between the second force arm 162 and the housing 11, or a first magnetic member 163 corresponding to the first force arm 161 may be disposed on the housing 11 to increase the sensitivity of the second force arm 162 to seal or unseal the relief hole 14.
Further, the inner side wall of the housing 11 protrudes to form a first boss 111 and a second boss 112, the air inlet 13 is disposed on the first boss 111, the air release hole 14 is disposed on the second boss 112, the end of the first force arm 161 is used for abutting against the first boss 111 and sealing the air inlet 13, and the end of the second force arm 162 is used for abutting against the second boss 112 and sealing the air release hole 14. Preferably, the first boss 111 is disposed close to the end face of the first force arm 161 in an inclined manner, and the second boss 112 is disposed close to the end face of the second force arm 162 in an inclined manner, so that the first force arm 161 can seal the air inlet hole 13 in a corresponding action, and the second force arm 162 can seal the air release hole 14 in a corresponding action, and the inclined angle of the first boss and the second boss can be adjusted according to the disposition of the first force arm 161 and the second force arm 162. Further preferably, the heights of the first boss 111, the fulcrum 15 and the second boss 112 are sequentially decreased or sequentially increased, and the design can make the first force arm 161 more easily approach to the first boss 11 to seal the air inlet hole 13 under the support of the fulcrum 15, and at the same time, the second force arm 162 is also more easily approach to the second boss 112 to seal the air release hole 14.
Further, the first and second force arms 161 and 162 have a plate shape. The side with the larger area of the first force arm 161 faces the air inlet 13, and similarly, the side with the larger area of the second force arm 162 faces the air release hole 14, so as to increase the acting force of the air on the first force arm 161 and the second force arm 162, so that the first force arm 161 and the second force arm 162 move more sensitively.
Further, the inner side wall of the housing 11 is further provided with a first air outlet 19 for communicating with the measuring device, and a second air outlet 20 for communicating with the pressure sensing device. When the air inlet 13 continuously admits air, the air in the air collecting cavity 12 is output to a measuring device through the first air outlet 19 or output to a pressure sensing device through the second air outlet 20; after the air inlet hole 13 stops feeding air, the measuring device and the pressure sensing device no longer receive high-pressure air, and the high-pressure air is discharged from the air discharge hole 14.
As shown in fig. 5, the embodiment of the present invention further provides a sphygmomanometer, including the air leakage device 1, and the measuring device 2, the pressure sensing device 3 and the inflation device 4 respectively connected to the air leakage device 1. Wherein, measuring device 2 communicates with disappointing device 1 through second venthole 20, and pressure sensing device 3 communicates with disappointing device 1 through first venthole 19, and aerating device 4 communicates with disappointing device 1 through aerifing hole 13. The specific configurations of the measuring device 2, the pressure sensing device 3, and the inflator 4 are not limited herein.
In the embodiment, the sphygmomanometer comprising the air leakage device 1 has an automatic air exhaust function, and is simple in structure, sensitive in air exhaust and free from power consumption.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A run-flat device, comprising: the air charging device comprises a shell, wherein a gas collecting cavity is arranged in the shell, an air inlet hole used for being communicated with an air charging device and an air release hole used for being communicated with the outside are formed in the side wall of the shell, and the air inlet hole and the air release hole are both communicated with the gas collecting cavity; the inlet port with the hole of disappointing set up in the homonymy of casing, the inside wall of casing in the inlet port with be provided with the fulcrum between the hole of disappointing, it is provided with the lever to rotate on the fulcrum, the lever including connect respectively in the first arm of force of fulcrum both sides and the second arm of force, keeping away from of the first arm of force the tip of the one end of the second arm of force is just right and be used for sealing the inlet port, keeping away from of the second arm of force the tip of the one end of the first arm of force is just right and be used for sealing the hole of disappoint.
2. The run-flat device of claim 1, wherein: the length of the first force arm is greater than the length of the second force arm.
3. The run-flat device of claim 1, wherein: the length of the first force arm is equal to the length of the second force arm.
4. The run-flat device according to claim 2 or 3, wherein: a first elastic piece which drives the end part of the first force arm to move towards the direction close to the air inlet hole is arranged between the first force arm and the shell.
5. The run-flat device according to claim 2 or 3, wherein: and a second elastic part for driving the end part of the second force arm to move towards the direction far away from the air release hole is arranged between the second force arm and the shell.
6. The run-flat device according to claim 2 or 3, wherein: the shell is provided with a first magnetic piece corresponding to the first force arm and used for attracting the first force arm.
7. The run-flat device according to any of claims 1-3, wherein: the inside wall of casing is outstanding to be formed with first boss and second boss, the inlet port set up in on the first boss, the hole that loses heart set up in on the second boss.
8. The run-flat device according to any of claims 1-3, wherein: the first force arm and the second force arm are plate-shaped.
9. The run-flat device according to any of claims 1-3, wherein: and a first air outlet hole used for communicating the measuring device and a second air outlet hole used for communicating the pressure sensing device are also formed in the inner side wall of the shell.
10. A sphygmomanometer, characterized in that: comprising a deflation device according to any of claims 1-9, and a measurement device, a pressure sensing device and an inflation device connected to said deflation device, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920183432.9U CN209915973U (en) | 2019-02-01 | 2019-02-01 | Air leakage device and sphygmomanometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920183432.9U CN209915973U (en) | 2019-02-01 | 2019-02-01 | Air leakage device and sphygmomanometer |
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| Publication Number | Publication Date |
|---|---|
| CN209915973U true CN209915973U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920183432.9U Active CN209915973U (en) | 2019-02-01 | 2019-02-01 | Air leakage device and sphygmomanometer |
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| CN (1) | CN209915973U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109998509A (en) * | 2019-02-01 | 2019-07-12 | 深圳市捷美瑞科技有限公司 | A kind of air releasing device and sphygmomanometer |
-
2019
- 2019-02-01 CN CN201920183432.9U patent/CN209915973U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109998509A (en) * | 2019-02-01 | 2019-07-12 | 深圳市捷美瑞科技有限公司 | A kind of air releasing device and sphygmomanometer |
| CN109998509B (en) * | 2019-02-01 | 2024-05-31 | 深圳市捷美瑞科技有限公司 | Air leakage device and sphygmomanometer |
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