Disclosure of Invention
The utility model provides a gas path inlet mechanism and breathing equipment, aiming at the technical problem that turbulence exists in gas input into the breathing equipment by a gas path inlet device in the prior art.
In view of the above technical problems, the embodiment of the utility model provides a gas path inlet mechanism, which comprises a gas inlet connector, a gas outlet connector, a filter, a one-way valve, a flow dispersing disc provided with a plurality of flow guiding through holes and a mounting block provided with a gas path, wherein the gas inlet connector is inserted into an inlet of the gas path, and the gas outlet connector is inserted into an outlet of the gas path;
the filter is arranged in an air inlet hole of the air inlet joint, the flow-dispersing disc is arranged in the air passage, and the air inlet hole is communicated with the air passage through the flow-guiding through hole; the one-way valve is installed in the air passage and is used for controlling the flow direction of the air in the air passage.
Optionally, the one-way valve comprises an elastic piece, a piston and a valve cylinder with a through hole, the piston comprises a plug body with the through hole and a plurality of supporting arms, and the plurality of supporting arms are connected to the plug body at annular intervals; the piston is arranged in the through hole through the elastic piece, one end, away from the plug body, of the supporting arm is abutted against the inner wall of the through hole, and a flow passage space is formed between two adjacent supporting arms; the plug body is used for plugging or conducting the inlet of the valve cylinder.
Optionally, a first annular abutting portion is arranged on the inner wall of the through hole, a second abutting portion is arranged on the supporting arm, and two opposite ends of the elastic piece are respectively abutted with the first annular abutting portion and the second abutting portion.
Optionally, an annular sealing ring is arranged at one end of the plug body away from the elastic element, an annular groove is arranged on the inner wall of the inlet of the valve cylinder, and when the annular sealing ring is inserted into the annular groove, the plug body seals the inlet of the valve cylinder.
Optionally, the mounting block is further provided with a first channel communicated with the air channel, and the air channel inlet mechanism further comprises a safety valve inserted in the first channel.
Optionally, the mounting block is further provided with a second channel communicated with the air channel, and the air channel inlet mechanism further comprises a pressure reducing valve inserted in the second channel.
Optionally, a third channel communicated with the air channel is further arranged on the mounting block, and the air channel inlet mechanism further comprises a pressure sensor inserted in the third channel.
Optionally, a fourth channel communicated with the air channel is further arranged on the mounting block, and the air channel inlet mechanism further comprises an outer joint inserted in the fourth channel.
The utility model also provides breathing equipment comprising the air channel inlet mechanism.
In the utility model, the air inlet connector is inserted into the inlet of the air passage, the air outlet connector is inserted into the outlet of the air passage, the flow-dispersing disc is arranged in the air passage, and the air inlet hole is communicated with the air passage through the flow-guiding through hole; when the turbulent flow phenomenon exists in the gas input into the gas outlet connector by the gas inlet connector, the turbulent flow gas is converted into laminar flow gas through the flow guiding through holes of the flow guiding disc, so that the stability of the gas input into the breathing equipment is ensured. In addition, the filter ensures cleanliness of the gas entering the airway, and the one-way valve ensures one-way flow of the airway. In addition, the air channel inlet mechanism has simple structure and low manufacturing cost.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. 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 utility model.
It is to be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "middle", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.
As shown in fig. 1 to 3, an air path inlet mechanism provided by an embodiment of the present utility model includes an air inlet connector 1, an air outlet connector 2, a filter 3, a one-way valve 4, a flow-dispersing disc 5 provided with a plurality of flow-guiding through holes 51, and a mounting block 6 provided with an air path 61, wherein the air inlet connector 1 is inserted into an inlet of the air path 61, and the air outlet connector 2 is inserted into an outlet of the air path 61; it is to be understood that the air inlet joint 1 and the air outlet joint 2 are mounted at opposite ends of the mounting block 6, and the flow-guiding plate 5 is fully distributed with the circular flow-guiding through holes 51.
The filter 3 is arranged in an air inlet hole of the air inlet joint 1, the flow-dispersing disc 5 is arranged in the air passage 61, and the air inlet hole is communicated with the air passage 61 through the flow-guiding through hole 51; the check valve 4 is installed in the gas passage 61 and is used to control the flow direction of the gas in the gas passage 61. It will be appreciated that the inlet end of the non-return valve 4 is directed towards the inlet fitting 1 and the outlet end of the non-return valve 4 is directed towards the outlet fitting 2, so that gas in the inlet fitting 1 may flow through the non-return valve 4 towards the outlet fitting 2, whereas gas in the outlet fitting 2 may not flow through the non-return valve 4 towards the inlet fitting 1, i.e. the non-return valve 4 ensures a unidirectional flow of gas in the gas channel 61.
In the utility model, the air inlet connector 1 is inserted into the inlet of the air passage 61, the air outlet connector 2 is inserted into the outlet of the air passage 61, the flow-dispersing disc 5 is arranged in the air passage 61, and the air inlet hole is communicated with the air passage 61 through the flow-guiding through hole 51; when the turbulent flow phenomenon exists in the gas input into the gas outlet connector 2 by the gas inlet connector 1, the turbulent flow gas is converted into laminar flow gas through the flow guiding through holes 51 of the flow guiding disc 5, so that the stability of the gas input into the breathing equipment is ensured. In addition, the filter 3 ensures cleanliness of the gas entering the gas passage 61, and the one-way valve 4 ensures one-way flow of the gas passage 61. In addition, the air channel inlet mechanism has simple structure and low manufacturing cost.
In one embodiment, as shown in fig. 4 and 5, the check valve 4 includes an elastic member 41, a piston 42, and a valve cylinder 43 with a through hole 431, where the piston 42 includes a plug body 421 with a through hole 431, and a plurality of support arms 422, and the plurality of support arms 422 are connected to the plug body 421 at annular intervals; the piston 42 is mounted in the through hole 431 through the elastic member 41, one end of the support arm 422 away from the plug 421 is abutted against the inner wall of the through hole 431, and a flow passage space is formed between two adjacent support arms 422; the plug body 421 is used to block or conduct the inlet of the valve cylinder 43. It will be appreciated that the resilient member 41 includes, but is not limited to, a spring or the like; the opening inner diameter of the inlet of the valve cylinder 43 is smaller than the inner diameter of the through hole 431.
Specifically, when the high-pressure gas is input into the air outlet connector 2 through the air inlet connector 1, the high-pressure gas drives the piston 42 to move toward one end of the air outlet connector 2, the elastic member 41 is compressed by the piston 42, the plug body 421 opens the opening of the valve cylinder 43, so that the gas flows into the through hole 431 through the flow passage space, flows into the air passage 61 through the through hole 431, and finally flows out of the air outlet connector 2. If the air outlet connector 2 flows to the air inlet connector 1 through the air passage 61, the air in the through hole 431 cannot drive the piston 42 to move, and the plug body 421 is in a state of blocking the inlet of the valve cylinder 43, so that the air in the air passage 61 cannot flow into the air inlet connector 1. In this embodiment, the check valve 4 has a simple structure and low manufacturing cost.
In an embodiment, as shown in fig. 4 and 5, a first annular abutment portion is disposed on an inner wall of the through hole 431, a second abutment portion 423 is disposed on the support arm 422, and opposite ends of the elastic member 41 respectively abut against the first annular abutment portion and the second abutment portion 423. As can be appreciated, the end of the elastic member 41 away from the first sliding abutment is inserted into the plurality of support arms 422 and abuts against the second abutment 423, so as to ensure the stability of the installation of the elastic member 41.
In an embodiment, as shown in fig. 4 and fig. 5, an annular sealing ring 44 is disposed at an end of the plug body 421 away from the elastic member 41, an annular groove (not shown in the drawings) is disposed on an inner wall of the inlet of the valve cylinder 43, and when the annular sealing ring 44 is inserted into the annular groove, the plug body 421 seals the inlet of the valve cylinder 43. Preferably, the plug 421, the support arm 422, and the ring seal 44 are integrally formed as a structural member. When the piston 42 is in the state of blocking the inlet of the valve cylinder 43 due to the elastic force of the elastic member 41, the annular sealing ring 44 is inserted into the annular groove, so that the sealing performance of the piston 42 for blocking the inlet of the valve cylinder 43 is ensured.
In one embodiment, as shown in fig. 1, the mounting block 6 is further provided with a first channel communicated with the air channel 61, and the air channel inlet mechanism further comprises a safety valve 7 inserted in the first channel. It will be appreciated that when the pressure of the gas in the gas passage 61 is greater than the preset relief pressure of the relief valve 7, the relief valve 7 will open, so that the gas in the gas passage 61 leaks into the external environment through the first passage and the relief valve 7, thereby ensuring the safety of the gas passage inlet mechanism.
In an embodiment, as shown in fig. 1, the mounting block 6 is further provided with a second channel communicated with the air channel 61, and the air channel inlet mechanism further comprises a pressure reducing valve 8 inserted in the second channel. It will be appreciated that the pressure reducing valve 8 may adjust the pressure value of the gas in the gas passage 61 so that the pressure of the gas output from the gas passage 61 is within a suitable range.
In an embodiment, as shown in fig. 1, the mounting block 6 is further provided with a third channel communicated with the air channel 61, and the air channel inlet mechanism further comprises a pressure sensor 9 inserted in the third channel. It will be appreciated that the pressure sensor 9 may monitor the pressure value of the gas in the airway 61.
In the utility model, the filter 3, the flow-dispersing disc 5, the one-way valve 4, the pressure sensor 9, the safety valve 7 and the pressure reducing valve 8 are integrated on the mounting block 6, so that the compactness and the integration of the air channel inlet mechanism are improved.
In an embodiment, as shown in fig. 1, the mounting block 6 is further provided with a fourth channel that communicates with the air channel 61, and the air channel inlet mechanism further includes an outer connector 101 that is inserted into the fourth channel. It will be appreciated that the outer joint 101 may be connected to barometer gauges, flow sensors, etc.
The utility model also provides breathing equipment comprising the air channel inlet mechanism.
The above embodiments of the air inlet mechanism of the present utility model are merely examples, and are not intended to limit the present utility model, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the scope of the present utility model.