CN111714750B - Humidification tank and respiratory treatment equipment - Google Patents
Humidification tank and respiratory treatment equipment Download PDFInfo
- Publication number
- CN111714750B CN111714750B CN202010625501.4A CN202010625501A CN111714750B CN 111714750 B CN111714750 B CN 111714750B CN 202010625501 A CN202010625501 A CN 202010625501A CN 111714750 B CN111714750 B CN 111714750B
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- Prior art keywords
- water
- tank
- valve
- sealing
- guide groove
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Links
- 230000000241 respiratory effect Effects 0.000 title description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 366
- 238000007789 sealing Methods 0.000 claims abstract description 110
- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 238000002644 respiratory therapy Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 description 20
- 239000007924 injection Substances 0.000 description 20
- 208000000884 Airway Obstruction Diseases 0.000 description 13
- 206010008589 Choking Diseases 0.000 description 13
- 206010035664 Pneumonia Diseases 0.000 description 11
- 238000013459 approach Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 206010011224 Cough Diseases 0.000 description 3
- 206010003497 Asphyxia Diseases 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000008227 sterile water for injection Substances 0.000 description 2
- 208000009470 Ventilator-Associated Pneumonia Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
- A61M16/16—Devices to humidify the respiration air
- A61M16/162—Water-reservoir filling system, e.g. automatic
- A61M16/164—Water-reservoir filling system, e.g. automatic including a liquid inlet valve system
- A61M16/165—Water-reservoir filling system, e.g. automatic including a liquid inlet valve system with a float actuator
- A61M16/168—Water-reservoir filling system, e.g. automatic including a liquid inlet valve system with a float actuator having a dual float
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
Abstract
The invention discloses a humidifying tank, which comprises a tank body, wherein the tank body is provided with a water inlet, the humidifying tank also comprises a sealing water guide groove piece, one end of the sealing water guide groove piece is arranged in the tank body at the water inlet, and the other end of the sealing water guide groove piece is provided with a water passing port; the floating valve is arranged below the sealing water guide groove piece and the water inlet and is used for pushing the sealing water guide groove piece to seal the water inlet when the water level in the tank body reaches a specified height; the protection valve is fixedly arranged at the side of the floating valve and used for blocking the water passing port after the water level in the tank body exceeds the designated height. When the water level in the humidifying tank reaches a designated height, the float valve pushes the sealing water guide groove piece to seal the water inlet; when the water inlet and/or the sealing water guide groove part are worn, external water continuously enters the tank body, so that the water level in the tank body continuously rises, the protection valve continuously rises and blocks the water gap, external water is prevented from continuously entering the tank body, the secondary protection of adding water into the humidification tank is realized, and the use safety of the humidification tank is improved.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a humidification tank and respiratory treatment equipment.
Background
The ventilator humidification tank is an instrument used with a ventilator (or other respiratory treatment equipment with the same function), moisture is stored in the ventilator humidification tank, and the ventilator humidification tank is usually connected between the ventilator and a gas conveying pipeline and is used for humidifying passing gas; if the humidification tank is heated, the passing gas may also be heated. The humidifying tank is required to ensure that the water adding amount cannot exceed a certain height when water is added, otherwise, water enters the gas conveying pipeline due to overflow, so that choking cough occurs to a patient, the occurrence probability of patient-related pneumonia is increased, the illness state of the patient can be aggravated, and even suffocation of the patient is caused when the patient is in danger.
In order to solve the above problems, the existing humidification tanks adopt a structure as shown in fig. 1: the humidifying tank comprises a base 1 and a humidifying tank main body 2 arranged on the base 1, wherein a water injection pipe 3 is arranged on the humidifying tank main body 2, a closed fixing frame 4 and a buoy 5 are arranged inside the humidifying tank main body 2, the fixing frame 4 is arranged on the inner wall of the humidifying tank main body 2, the fixing frame 4 is coaxial with the water injection pipe 3, the buoy 5 corresponds to the water injection pipe 3, the upper section of the buoy 5 is arranged on the fixing frame 4 and can reciprocate along the height direction of the fixing frame 4, and a connecting hole 6 which can be communicated with the inside of the humidifying tank main body 2 is arranged on the fixing frame 4. The buoy 5 corresponding to the water injection pipe 3 is arranged in the humidifying tank main body 2, when the humidifying tank is used, water enters the humidifying tank main body 2 through the water injection pipe 3 and enters the connecting hole 6, when the buoyancy of the water level is larger than the volume of the object, the buoy 5 floats in water and moves upwards, and is just clamped at the lower end of the water injection pipe 3, so that the water flow of sterile water for injection is stopped and cannot flow downwards, the blocking effect is achieved, the continuous water entering can be limited, the overfull water is avoided, and the problems of choking, ventilator-related pneumonia and the like of a patient are reduced.
Although the existing humidifying tank solves the problem of overflow of water in the tank to a certain extent, the sectional area of the water injection pipe 3 is smaller, and the water sealing part 503 at the upper end of the floating valve is easy to break after being abutted against the water injection pipe for a plurality of times, so that water flows out from the gap between the water injection pipe and the upper end face of the buoy, and the humidifying tank loses the capacity of controlling the water quantity.
It can be seen that the prior art is still in need of improvement and development.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a humidification tank and a respiratory therapy device, which aims to solve the problem that the humidification tank loses the control capability of water quantity when a floating valve and/or a water inlet of the existing humidification tank are worn.
The technical scheme adopted for solving the technical problems is as follows: a humidification tank comprising: the jar body, the water inlet has been seted up to the jar body, wherein, humidifying jar still includes:
one end of the sealing water guide groove piece is arranged in the tank body at the water inlet, and the other end of the sealing water guide groove piece is provided with a water passing port;
the floating valve is arranged below the sealing water guide groove piece and the water inlet and is used for pushing the sealing water guide groove piece to seal the water inlet when the water level in the tank body reaches a specified height;
and the protection valve is fixedly arranged at the side of the floating valve and is used for blocking the water passing port after the water level in the tank body exceeds the designated height.
Further, the sealing water guide groove member includes:
the sealing end is arranged between the water inlet and the float valve and is used for sealing the water inlet when the water level in the tank body reaches a specified height;
the water passing port is arranged at the other end opposite to the sealing end and is arranged at the upper end of the protection valve and used for enabling water to enter the tank body;
and the water guide groove is connected between the sealing end and the water passing port and is used for guiding water at the sealing end to the water passing port.
Further, the inner surface of the groove bottom of the sealing water guide groove piece is smaller than the sealing end at the water passing opening.
Further, a sealing valve plate is arranged at the sealing end and protrudes towards the water inlet, and the sealing valve plate is used for sealing the water inlet when the water level in the tank body reaches a specified height;
and the connecting ring groove protrudes towards the floating valve and is used for accommodating and connecting the floating valve.
Further, a guide mechanism is vertically extended downwards from the inner surface of the top wall of the tank body, and the guide mechanism is used for guiding and limiting the lifting direction of the floating valve and the protection valve.
Further, the guide mechanism includes:
the guide circular tube extends downwards from the inner surface of the top wall of the tank body, which is close to the water inlet, and is used for guiding and limiting the lifting direction of the float valve;
the first guide column extends downwards from the inner surface of the top wall of the tank body, which is close to one side of the water passing port;
the second guide column extends downwards from the inner surface of the other side of the top wall of the tank body, which is close to the water passing port, to be formed;
the first guide post and the second guide post are used for guiding and limiting the lifting direction of the protection valve.
Further, the humidifying tank further comprises a floating valve connecting piece, one end of the floating valve connecting piece is fixed on the floating valve, and the other end of the floating valve connecting piece is slidably provided with the protection valve;
the floating valve connecting piece is used for driving the protection valve to synchronously lift by the floating valve.
Further, the floating valve connecting piece comprises a floating valve fixing ring and a protective valve bearing plate which are integrally formed;
the floating valve fixing ring is sleeved on the floating valve, and the protection valve is slidingly supported on the protection valve bearing plate.
Further, the floating valve fixing ring is in a ring shape, guide teeth vertically extend towards the end face of the water inlet, the floating valve fixing ring is sleeved on the floating valve, and the guide teeth are accommodated in the guide circular tube and used for limiting radial movement of the floating valve relative to the guide circular tube;
the protection valve bearing plate is towards the first positioning column and the second positioning column extend vertically on the end face of the water passing port, a first guide groove and a second guide groove are formed in the position of the protection valve corresponding to the first positioning column and the second positioning column, the first positioning column is slidably mounted in the first guide groove, and the second positioning column is mounted in the second guide groove.
The technical scheme adopted for solving the technical problems is as follows: a respiratory therapy apparatus, wherein the respiratory therapy apparatus comprises a humidification tank as described above.
Compared with the prior art, the invention provides a humidifying tank, which comprises a tank body, wherein the tank body is provided with a water inlet, the humidifying tank also comprises a sealing water guide groove piece, one end of the sealing water guide groove piece is arranged in the tank body at the water inlet, and the other end of the sealing water guide groove piece is provided with a water passing port; the floating valve is arranged below the sealing water guide groove piece and the water inlet and is used for pushing the sealing water guide groove piece to seal the water inlet when the water level in the tank body reaches a specified height; the protection valve is fixedly arranged at the side of the floating valve and used for blocking the water passing port after the water level in the tank body exceeds the designated height. By arranging the sealing water guide groove part, the floating valve and the protection valve, when the water level in the tank body of the humidifying tank reaches a specified height, the floating valve pushes the sealing water guide groove part to seal the water inlet; when the water inlet and/or the sealing water guide groove piece is worn, the external water continuously enters the tank body when the sealing water guide groove piece fails to plug the water inlet in time, so that the water level in the tank body continuously rises, the protection valve continuously rises and continuously approaches the water passing port, and when the protection valve contacts the water passing port, the water passing port is plugged in time, the external water is effectively prevented from continuously entering the tank body, the secondary protection of adding water to the humidification tank is realized, the water quantity in the tank body is prevented from being overfilled, the problems of patient choking, ventilator-related pneumonia and the like are reduced, and the use safety of the humidification tank is improved.
Drawings
FIG. 1 is a cross-sectional view of a prior art humidification tank;
FIG. 2 is a schematic perspective view of a humidification pot according to a preferred embodiment of the present invention;
FIG. 3 is a schematic side view of a humidification tank in a preferred embodiment of the invention;
FIG. 4 is a schematic view showing a cross section in the direction I-I in FIG. 3 according to the preferred embodiment of the present invention;
FIG. 5 is a schematic perspective view of a sealed water guide channel member of a humidification tank according to a preferred embodiment of the present invention;
FIG. 6 is a schematic perspective view of another view of a sealed water guide channel member of a humidification tank in accordance with a preferred embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of a sealed water guide channel member of a humidification tank in a preferred embodiment of the invention;
FIG. 8 is a schematic perspective view of a tank body of a humidification tank in a preferred embodiment of the present invention;
FIG. 9 is a schematic perspective view of a float valve connector of a humidification tank according to a preferred embodiment of the present invention;
FIG. 10 is a schematic perspective view of a protection valve of a humidification tank according to a preferred embodiment of the present invention;
FIG. 11 is an enlarged pictorial view of section A of FIG. 4;
FIG. 12 is a schematic view of the modified structure of FIG. 11;
FIG. 13 is a schematic view of the variation of FIG. 11;
reference numerals illustrate:
10. a humidifying tank; 11. a tank body; 12. a float valve; 13. a protection valve; 14. sealing the water guide groove piece; 15. a float valve connector; 17. an air inlet; 18. an air outlet; 19. a heating plate; 111. a water inlet; 112. a guide mechanism; 113. a guide circular tube; 114. a first guide post; 115. a second guide post; 116. a notch; 121. a connection protrusion; 131. a first guide groove; 132. a second guide groove; 141. a water passing port; 142. sealing the end; 143. a water guide groove; 144. a groove bottom; 145. a sealing valve plate; 146. a connecting ring groove; 151. a float valve fixing ring; 152. a protective valve carrier plate; 153. guide teeth; 154. a first positioning column; 155. and a second positioning column.
Detailed Description
The invention provides a humidification tank and respiratory treatment equipment, which are used for making the purposes, technical schemes and effects of the invention clearer and more definite, and the invention is further described in detail below by referring to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The ventilator humidification tank is an instrument used with a ventilator (or other respiratory treatment equipment with the same function), moisture is stored in the ventilator humidification tank, and the ventilator humidification tank is usually connected between the ventilator and a gas conveying pipeline and is used for humidifying passing gas; if the humidification tank is heated, the passing gas may also be heated. The humidifying tank is required to ensure that the water adding amount cannot exceed a certain height when water is added, otherwise, water enters the gas conveying pipeline due to overflow, so that choking cough occurs to a patient, the occurrence probability of patient-related pneumonia is increased, the illness state of the patient can be aggravated, and even suffocation of the patient is caused when the patient is in danger.
In order to solve the above problems, the existing humidification tanks adopt a structure as shown in fig. 1: the humidifying tank comprises a base 1 and a humidifying tank main body 2 arranged on the base 1, wherein a water injection pipe 3 is arranged on the humidifying tank main body 2, a closed fixing frame 4 and a buoy 5 are arranged inside the humidifying tank main body 2, the fixing frame 4 is arranged on the inner wall of the humidifying tank main body 2, the fixing frame 4 is coaxial with the water injection pipe 3, the buoy 5 corresponds to the water injection pipe 3, the upper section of the buoy 5 is arranged on the fixing frame 4 and can reciprocate along the height direction of the fixing frame 4, and a connecting hole 6 which can be communicated with the inside of the humidifying tank main body 2 is arranged on the fixing frame 4. The buoy 5 corresponding to the water injection pipe 3 is arranged in the humidifying tank main body 2, when the humidifying tank is used, water enters the humidifying tank main body 2 through the water injection pipe 3 and enters the connecting hole 6, when the buoyancy of the water level is larger than the volume of the object, the buoy 5 floats in water and moves upwards, and is just clamped at the lower end of the water injection pipe 3, so that the water flow of sterile water for injection is stopped and cannot flow downwards, the blocking effect is achieved, the continuous water entering can be limited, the overfull water is avoided, and the problems of choking, ventilator-related pneumonia and the like of a patient are reduced.
Although the existing humidifying tank solves the problem of overflow of water in the tank to a certain extent, the sectional area of the water injection pipe 3 is smaller, and the water sealing part 503 at the upper end of the floating valve is easy to break after being abutted against the water injection pipe for a plurality of times, so that water flows out from the gap between the water injection pipe and the upper end face of the buoy, and the humidifying tank loses the capacity of controlling the water quantity. It can be understood that if more dust particles or other impurities exist on the upper end surface of the buoy or the buoy is damaged after a long time of use, the buoy cannot be tightly attached to the water injection pipe, and then the water outlet of the water injection pipe is likely to be impossible to be blocked. If the problem is solved from the direction of preventing the upper end face of the buoy from being contaminated with impurities such as dust particles, the problem is difficult to realize or can be realized but has high cost.
Therefore, based on the technical problems existing in the humidification tanks in the prior art, the invention provides a novel humidification tank, and the sealing water guide groove piece, the floating valve and the protection valve are arranged, so that when the water level in the tank body of the humidification tank reaches a specified height, the floating valve pushes the sealing water guide groove piece to seal the water inlet; when the water inlet and/or the sealing water guide groove piece is worn, the external water continuously enters the tank body when the sealing water guide groove piece fails to plug the water inlet in time, so that the water level in the tank body continuously rises, the protection valve continuously rises and continuously approaches the water passing port, and when the protection valve contacts the water passing port, the water passing port is plugged in time, the external water is effectively prevented from continuously entering the tank body, the secondary protection of adding water to the humidification tank is realized, the water quantity in the tank body is prevented from being overfilled, the problems of patient choking, ventilator-related pneumonia and the like are reduced, and the use safety of the humidification tank is improved.
Referring to fig. 2 to 4 in combination, a first embodiment of the present invention provides a humidification tank 10, wherein the humidification tank 10 includes a tank 11 (the present invention refers to a housing of the humidification tank 10), a sealing water guiding tank 14, a float valve 12, and a protection valve 13; the tank 11 is provided with a water inlet 111; one end of the sealing water guide groove 14 is arranged in the tank body 11 at the water inlet 111, and the other end is provided with a water passing port 141 for blocking the water inlet 111 and guiding a water inlet path; it can be understood that the external water enters the sealing water guiding groove 14 through the water inlet 111, then flows to the water passing hole 141 formed on the sealing water guiding groove 14 under the guidance of the sealing water guiding groove 14, and then flows into the tank 11 through the water passing hole 141; the float valve 12 is arranged below the sealing water guiding groove 14 and the water inlet 111, namely, the float valve 12 is arranged below one end of the sealing water guiding groove 14 at the water inlet 111, and when the water level in the tank 11 reaches a designated height, the float valve 12 is used for pushing the sealing water guiding groove 14 to seal the water inlet 111; the protection valve 13 is fixedly installed at the side of the float valve 12, that is, the protection valve 13 is fixedly installed below one end of the water inlet 111 according to the principle of the sealing water guiding groove 14, and when the water level in the tank 11 exceeds a specified height, the protection valve 13 is used for blocking the water passing port 141.
It will be appreciated that, for different types of humidification tanks 10, the safety water levels (the highest water levels at which no safety hazard occurs) are different, the specified height is not required to be specifically limited, and those skilled in the art can adaptively adjust the specified height according to the parameters of the humidification tank 10, which does not require any creative effort, and the humidification tank is within the protection scope of the present invention regardless of the specific numerical value of the specified height. By arranging the sealing water guide groove 14, the floating valve 12 and the protection valve 13, when the water level in the tank body 11 of the humidification tank 10 reaches a specified height, the floating valve 12 pushes the sealing water guide groove 14 to seal the water inlet 111; when the water inlet 111 and/or the sealing water guide groove 14 are worn, and the sealing water guide groove 14 fails to timely seal the water inlet 111, external water continuously enters the tank 11, so that the water level in the tank 11 continuously rises, the protection valve 13 continuously rises and continuously approaches the water passing port 141, and timely seals the water passing port 141 when contacting the water passing port 141, so that external water is effectively prevented from continuously entering the tank 11, the secondary protection of adding water to the humidification tank 10 is realized, the water volume in the tank 11 is prevented from being overfilled, the problems of choking, ventilator-related pneumonia and the like of a patient are reduced, and the use safety of the humidification tank 10 is improved.
Referring further to fig. 5-7, in some preferred embodiments, the sealing water guiding gutter 14 includes a sealing end 142, a water outlet 141, and a water guiding gutter 143; the sealing end 142 is arranged between the water inlet 111 and the float valve 12, and the sealing end 142 is used for sealing the water inlet 111 under the pushing of the float valve 12 when the water level in the tank 11 reaches a specified height; the water passing port 141 is disposed at the other end opposite to the sealing end 142, and is located at the upper end of the protection valve 13 for external water to enter the tank 11; the water guiding groove 143 is connected between the sealing end 142 and the water passing port 141, and is used for guiding water at the sealing end 142 to the water passing port 141; it will be appreciated that the external water flows into the sealed end 142 through the water inlet 111, then flows into the water outlet 141 through the water guide groove 143 at the sealed end 142, and then flows into the tank 11 through the water outlet 141; the sealing water guide groove 14 can not only seal the water inlet 111, but also drain water, and can also provide a through hole for external water to flow into the tank 11.
In some preferred embodiments, the height of the inner surface of the groove bottom 144 of the seal water guiding groove 14 at the water passing port 141 is smaller than the height at the seal end 142. That is, the groove bottom 144 of the sealing water guiding groove 14 forms an angle α with the horizontal plane, the angle α being 3°±0.5°. It can be appreciated that the inner surface of the groove bottom 144 of the sealing water guiding groove 14 is inclined, the sealing end 142 is high, and the water passing opening 141 is low, so that the water flowing into the water inlet 111 is guaranteed, and the water can flow into the water passing opening 141 in time under the action of gravity and flow into the tank 11 through the water passing opening 141.
In other preferred embodiments, the sealing end 142 is provided with a sealing valve plate 145 and a connecting ring groove 146; the sealing valve plate 145 protrudes towards the water inlet 111, and is used for sealing the water inlet 111 when the water level in the tank 11 reaches a specified height; the connecting ring groove 146 protrudes towards the float valve 12 and is used for accommodating and connecting the float valve 12; the axial sections of the float valve 12 and the protection valve 13 are both provided with a convex shape, and the top of the float valve 12 is provided with a connecting protrusion 121 corresponding to the connecting ring groove 146.
It will be appreciated that the connection protrusion 121 at the top of the float valve 12 is received in the connection ring groove 146, and may extend into the connection ring groove 146 according to the level of the water in the tank 11, or may be removed from the connection ring groove 146; the sealing valve plate 145 has a certain elasticity, and can be deformed elastically under the action of the float valve 12, so as to seal the water inlet 111.
Referring further to fig. 8, in other preferred embodiments, a guiding mechanism 112 extends vertically downward from the inner surface of the top wall of the tank 11, and the guiding mechanism 112 is used for guiding and defining the lifting direction of the float valve 12 and the protection valve 13. It can be understood that the float valve 12 and the protection valve 13 are lifted by the buoyancy of the water in the tank 11, and the lifting position and direction of the float valve 12 and the protection valve 13 are limited by the guide mechanism 112, so that the float valve 12 and the protection valve 13 can timely block the water inlet 111 and the water outlet 141, and further, the external water is effectively prevented from continuously entering the tank 11, the secondary protection of adding water to the humidification tank 10 is realized, the water volume in the tank 11 is prevented from being overfilled, the problems of choking, choking and the ventilator-related pneumonia of a patient are reduced, and the use safety of the humidification tank 10 is improved.
In some embodiments, the guide mechanism 112 includes a guide barrel 113, a first guide post 114, and a second guide post 115; the guide circular tube 113 extends downwards from the inner surface of the top wall of the tank 11 near the water inlet 111, and is used for guiding and limiting the lifting direction of the float valve 12; the first guide post 114 and the second guide post 115 extend downwards from the inner surface of the top wall of the tank 11 near the water passing port 141, that is, the first guide post 114 extends downwards from the inner surface of the top wall of the tank 11 near one side of the water passing port 141, and the second guide post 115 extends downwards from the inner surface of the top wall of the tank 11 near the other side of the water passing port 141; the first guide post 114 and the second guide post 115 serve to guide and define the lifting direction of the protection valve 13.
Referring to fig. 9 and 10 in combination, in other preferred embodiments, the humidification tank 10 further includes a float valve connector 15, where the float valve connector 15 is used for the float valve 12 to drive the protection valve 13 to synchronously lift; one end of the float valve connecting piece 15 is fixed on the float valve 12, and the other end is slidably provided with the protection valve 13.
It can be appreciated that the side wall of the guide circular tube 113 facing the water passing port 141 is provided with a notch 116, and the float valve connecting piece 15 is lifted and lowered through the notch 116; the floating valve 12 drives the protection valve 13 to synchronously lift through the floating valve connecting piece 15; when the float valve 12 pushes the sealing water guiding groove 14 to seal the water inlet 111, the height of the float valve 12 is not increased, but the protecting valve 13 can be further increased upwards relative to the float valve connecting piece 15; when the water level in the tank 11 drops, the protection valve 13 is lowered in height until the water level reaches a specified height, the protection valve 13 is lowered onto the float valve connector 15, and then the height continues to be lowered with the float valve 12 and the float valve connector 15.
In some embodiments, the float valve connector 15 includes a float valve fixing ring 151 and a protective valve carrier plate 152, and the float valve fixing ring 151 and the protective valve carrier plate 152 are integrally formed; the floating valve fixing ring 151 is sleeved on the floating valve 12, and the protection valve 13 is slidingly supported on the protection valve bearing plate 152.
Further, the floating valve fixing ring 151 is provided with a circular ring shape, and a guiding tooth 153 vertically extends on an end surface facing the water inlet 111, the floating valve fixing ring 151 is sleeved on the floating valve 12, and the guiding tooth 153 is accommodated in the guiding circular tube 113 and is used for limiting radial movement of the floating valve 12 relative to the guiding circular tube 113; the protection valve bearing plate 152 vertically extends towards the end face of the water passing port 141 to form a first positioning column 154 and a second positioning column 155, a first guide groove 131 and a second guide groove 132 are formed in positions of the protection valve 13 corresponding to the first positioning column 154 and the second positioning column 155, the first positioning column 154 is slidably mounted in the first guide groove 131, and the second positioning column 155 is mounted in the second guide groove 132.
In other preferred embodiments, the humidifying tank 10 is further provided with a water inlet micro pipe, an air inlet 17, an air outlet 18 and a heating plate 19; the lower end of the water inlet micropipe is positioned in the water inlet 111, and the upper end of the water inlet micropipe protrudes out of the outer wall of the tank 11; the air inlet 17 and the air outlet 18 are arranged at the top wall of the tank 11, and the heating plate 19 is arranged at the bottom of the tank 11 and is used for sealing the tank 11 and heating water in the tank 11.
Referring to fig. 11 to 13, in some preferred embodiments, external water is introduced into the water inlet 111 through the water inlet micro pipe, then flows into the sealing end 142 of the sealing water guiding channel 14, flows to the water outlet 141 through the water guiding channel 143 under the action of gravity, then flows into the tank 11 through the water outlet 141, so that the water level in the tank 11 continuously rises, and the floating valve 12 extends into the guiding circular pipe 113 when the protecting valve 13 is synchronously driven to float up through the floating valve connecting piece 15; when the water level in the tank 11 reaches a designated height, the sealing valve plate 145 of the sealing end 142 of the sealing water guide is pushed to seal the water inlet 111; if the float valve 12 can push the sealing valve plate 145 to close the water inlet 111 in time, the external water does not enter the tank 11; however, if the sealing water guiding groove 14 and/or the water inlet 111 are worn or sundries are accumulated, the float valve 12 pushes the sealing valve plate 145 to contact and seal the water inlet 111, but external water still can enter the sealing water guiding groove 14 through the water inlet 111, so that the water level in the tank 11 continues to rise, further the protection valve 13 continues to rise, and as the water level in the tank 11 continues to rise, the protection valve 13 continues to float, and after contacting the water passing hole 141, the water passing hole 141 is sealed in time, so that external water is prevented from entering the tank 11 in time (the tank 11 refers to a cavity enclosed by the tank 11 and the heating plate 19, and the space where the sealing water guiding groove 14 is located is not included); thereby realizing the secondary protection of adding water to the humidification tank 10, avoiding the excessive water quantity in the tank 11, reducing the problems of choking cough, choking and ventilator-associated pneumonia of patients, and the like, and improving the use safety of the humidification tank 10.
In a second embodiment of the invention, a respiratory therapy apparatus is provided, wherein the respiratory therapy apparatus comprises a humidification tank 10 as described in the above embodiments of the invention. It will be appreciated that the respiratory treatment apparatus provided in the present invention, by using the humidification tank 10 described in the present invention, further when the water level in the tank body 11 of the humidification tank 10 reaches a specified height, the float valve 12 pushes the sealing water guide groove 14 to block the water inlet 111; when the water inlet 111 and/or the sealing water guide groove 14 are worn, and the sealing water guide groove 14 fails to timely seal the water inlet 111, external water continuously enters the tank 11, so that the water level in the tank 11 continuously rises, the protection valve 13 continuously rises and continuously approaches the water passing port 141, and timely seals the water passing port 141 when contacting the water passing port 141, so that external water is effectively prevented from continuously entering the tank 11, the secondary protection of adding water to the humidification tank 10 is realized, the water volume in the tank 11 is prevented from being overfilled, the problems of choking, ventilator-related pneumonia and the like of a patient are reduced, and the use safety of respiratory treatment equipment is improved.
Compared with the prior art, the invention provides a humidifying tank, which comprises a tank body, wherein the tank body is provided with a water inlet, the humidifying tank also comprises a sealing water guide groove piece, one end of the sealing water guide groove piece is arranged in the tank body at the water inlet, and the other end of the sealing water guide groove piece is provided with a water passing port; the floating valve is arranged below the sealing water guide groove piece and the water inlet and is used for pushing the sealing water guide groove piece to seal the water inlet when the water level in the tank body reaches a specified height; the protection valve is fixedly arranged at the side of the floating valve and used for blocking the water passing port after the water level in the tank body exceeds the designated height. By arranging the sealing water guide groove part, the floating valve and the protection valve, when the water level in the tank body of the humidifying tank reaches a specified height, the floating valve pushes the sealing water guide groove part to seal the water inlet; when the water inlet and/or the sealing water guide groove piece is worn, the external water continuously enters the tank body when the sealing water guide groove piece fails to plug the water inlet in time, so that the water level in the tank body continuously rises, the protection valve continuously rises and continuously approaches the water passing port, and when the protection valve contacts the water passing port, the water passing port is plugged in time, the external water is effectively prevented from continuously entering the tank body, the secondary protection of adding water to the humidification tank is realized, the water quantity in the tank body is prevented from being overfilled, the problems of patient choking, ventilator-related pneumonia and the like are reduced, and the use safety of the humidification tank is improved.
It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.
Claims (8)
1. A humidification tank comprising: the jar body, the water inlet has been seted up to the jar body, its characterized in that, humidifying jar still includes:
one end of the sealing water guide groove piece is fixedly arranged in the tank body at the water inlet, and the other end of the sealing water guide groove piece is provided with a water passing port;
the floating valve is arranged below the sealing water guide groove piece and the water inlet and is used for pushing the sealing water guide groove piece to seal the water inlet when the water level in the tank body reaches a specified height;
the protection valve is fixedly arranged at the side of the floating valve and is used for blocking the water passing port after the water level in the tank exceeds the designated height;
the sealed water guide groove piece includes:
the sealing end is arranged between the water inlet and the float valve and is used for sealing the water inlet when the water level in the tank body reaches a specified height;
the water passing port is arranged at the other end opposite to the sealing end and is arranged at the upper end of the protection valve and used for enabling water to enter the tank body;
the water guide groove is connected between the sealing end and the water passing port and is used for guiding water at the sealing end to the water passing port;
the inner surface of the groove bottom of the sealing water guide groove piece is smaller than the sealing end at the water passing opening;
external water flows into the sealing end through the water inlet, flows into the water outlet through the water guide groove, and flows into the tank body through the water outlet.
2. Humidification tank as claimed in claim 1, characterized in that,
the sealing end is provided with a sealing valve plate which protrudes towards the water inlet and is used for sealing the water inlet when the water level in the tank body reaches a specified height;
and the connecting ring groove protrudes towards the floating valve and is used for accommodating and connecting the floating valve.
3. Humidification tank as claimed in claim 2, characterized in that,
the inner surface of the top wall of the tank body is vertically extended downwards to form a guide mechanism, and the guide mechanism is used for guiding and limiting the lifting direction of the floating valve and the protection valve.
4. A humidification tank as claimed in claim 3, wherein the guide means comprises:
the guide circular tube extends downwards from the inner surface of the top wall of the tank body, which is close to the water inlet, and is used for guiding and limiting the lifting direction of the float valve;
the first guide column extends downwards from the inner surface of the top wall of the tank body, which is close to one side of the water passing port;
the second guide column extends downwards from the inner surface of the other side of the top wall of the tank body, which is close to the water passing port, to be formed;
the first guide post and the second guide post are used for guiding and limiting the lifting direction of the protection valve.
5. The humidification tank of claim 4, wherein,
the humidifying tank further comprises a floating valve connecting piece, one end of the floating valve connecting piece is fixed on the floating valve, and the other end of the floating valve connecting piece is slidably provided with the protection valve;
the floating valve connecting piece is used for driving the protection valve to synchronously lift by the floating valve.
6. The humidification tank of claim 5, wherein,
the floating valve connecting piece comprises a floating valve fixing ring and a protective valve bearing plate which are integrally formed;
the floating valve fixing ring is sleeved on the floating valve, and the protection valve is slidingly supported on the protection valve bearing plate.
7. The humidification tank of claim 6, wherein,
the floating valve fixing ring is arranged in a circular shape, guide teeth vertically extend towards the end face of the water inlet, the floating valve fixing ring is sleeved on the floating valve, and the guide teeth are accommodated in the guide circular tube and used for limiting radial movement of the floating valve relative to the guide circular tube;
the protection valve bearing plate is towards the first positioning column and the second positioning column extend vertically on the end face of the water passing port, a first guide groove and a second guide groove are formed in the position of the protection valve corresponding to the first positioning column and the second positioning column, the first positioning column is slidably mounted in the first guide groove, and the second positioning column is mounted in the second guide groove.
8. A respiratory therapy apparatus comprising a humidification tank according to any one of claims 1 to 7.
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| CN202010625501.4A CN111714750B (en) | 2020-07-02 | 2020-07-02 | Humidification tank and respiratory treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010625501.4A CN111714750B (en) | 2020-07-02 | 2020-07-02 | Humidification tank and respiratory treatment equipment |
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| CN111714750A CN111714750A (en) | 2020-09-29 |
| CN111714750B true CN111714750B (en) | 2023-11-07 |
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| US4529867A (en) * | 1984-02-09 | 1985-07-16 | Inspiron Corporation | Humidifier and heater |
| US5445143A (en) * | 1992-09-23 | 1995-08-29 | Fisher & Paykel Limited | Humidifier with dual float valves |
| CN205626673U (en) * | 2016-04-05 | 2016-10-12 | 邵钢 | Humidifying jar |
| CN106535976A (en) * | 2014-05-13 | 2017-03-22 | 费雪派克医疗保健有限公司 | Usability features for respiratory humidification system |
| CN110496289A (en) * | 2019-09-20 | 2019-11-26 | 重庆医科大学 | A kind of ventilator heat humidifier is with automatically adding water humidification pot |
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| GB0615871D0 (en) * | 2006-08-10 | 2006-09-20 | Intersurgical Ag | Improvements relating to humidification chambers |
| EP2236167B1 (en) * | 2009-03-30 | 2011-10-12 | Dräger Medical GmbH | Humidifier for breathing gases |
| US10207074B2 (en) * | 2013-09-04 | 2019-02-19 | Fisher & Paykel Healthcare Limited | Float retention arrangement for humidification chamber |
| GB2533515B (en) * | 2013-09-13 | 2020-01-15 | Fisher & Paykel Healthcare Ltd | Heater base with a front guard and an anti-racking mechanism |
| US11338105B2 (en) * | 2018-03-27 | 2022-05-24 | Globalmed, Inc. | Respiratory humidification device |
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|---|---|---|---|---|
| US4529867A (en) * | 1984-02-09 | 1985-07-16 | Inspiron Corporation | Humidifier and heater |
| US5445143A (en) * | 1992-09-23 | 1995-08-29 | Fisher & Paykel Limited | Humidifier with dual float valves |
| CN106535976A (en) * | 2014-05-13 | 2017-03-22 | 费雪派克医疗保健有限公司 | Usability features for respiratory humidification system |
| CN205626673U (en) * | 2016-04-05 | 2016-10-12 | 邵钢 | Humidifying jar |
| CN110496289A (en) * | 2019-09-20 | 2019-11-26 | 重庆医科大学 | A kind of ventilator heat humidifier is with automatically adding water humidification pot |
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| CN111714750A (en) | 2020-09-29 |
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