阅读说明：本技术 设时空转换延时机构的滤毒罐结构 (Canister structure with time-space conversion delay mechanism ) 是由 姜有飞 于 2018-06-28 设计创作，主要内容包括：本发明涉及消防器材。一种设时空转换延时机构的滤毒罐结构,包括滤毒罐,滤毒罐内设有两块栅格板,栅格板将滤毒罐分割为进气腔、滤毒材料储存腔和出气腔,进气腔设有进气孔,出气腔设有出气孔,滤毒材料储存腔内设有时空转换延时机构,时空转换延时机构包括中心轴和设置在中心轴中上的螺旋结构的隔离片,中心轴沿进气孔和出气孔的分布方向延伸,隔离片、中心轴和滤毒罐的壁之间形成螺旋形气道,隔离片远离中心轴的边缘同滤毒罐的内表面密封连接在一起。本发明旨在提供一种能够延长气体同滤毒材料的接触时间的设时空转换延时机构的滤毒罐结构,解决了空气流过滤毒材料储存腔内的时间短而导致的滤毒效果差的问题。(The invention relates to a fire-fighting apparatus. The utility model provides an establish canister structure of time-space conversion delay mechanism, including canister, be equipped with two grid plates in the canister, the grid plate is divided into the chamber of admitting air with canister, the chamber is stored to the poison material and the chamber of giving vent to anger, the chamber of admitting air is equipped with the inlet port, the chamber of giving vent to anger is equipped with the venthole, the intracavity is stored to the poison material is equipped with time-space conversion delay mechanism, time-space conversion delay mechanism includes center pin and the spacer of the helical structure of setting in the center pin, the center pin extends along the direction of distribution of inlet port and venthole, the spacer, form the spiral air flue between the wall of center pin and canister, the edge that the center pin was kept away from to the spacer is in the same place with canister. The invention aims to provide a canister structure provided with a time-space conversion delay mechanism and capable of prolonging the contact time of gas and a canister material, and solves the problem of poor canister effect caused by short time of air flowing through a canister material storage cavity.)

1. A canister structure with a time-space conversion delay mechanism comprises a canister, two grid plates are arranged in the canister, the canister is divided into an air inlet cavity, a canister material storage cavity and an air outlet cavity by the grid plates, the air inlet cavity is provided with an air inlet hole, the air outlet cavity is provided with an air outlet hole, the canister structure is characterized in that the canister structure is internally provided with the time-space conversion delay mechanism, the time-space conversion delay mechanism comprises a central shaft and a separation sheet with a spiral structure, the separation sheet is arranged in the central shaft, the central shaft extends along the distribution direction of the air inlet hole and the air outlet hole, a spiral air passage is formed among the separation sheet, the central shaft and the wall of the canister, and the edge of the separation sheet, which is far away from the central shaft, is hermetically connected with the inner surface of the canister; the canister is made of plastic.

2. The canister structure with the time-space switching delay mechanism as claimed in claim 1, wherein a flexible layer is disposed on an inner peripheral surface of the canister storage cavity, a sealed air cavity is formed between the flexible layer and the canister peripheral surface, oxygen is filled in the sealed air cavity to generate positive pressure, so that the flexible layer is in sealing contact with an edge of the spacer away from the center shaft, the center shaft is in sealing rotation connection with the two grid plates, the center shaft extends into the air inlet, the sealed air cavity is provided with a pressure relief channel communicated with the air outlet cavity, and the pressure relief channel is provided with a control valve.

3. The canister structure of the time-space switching delay mechanism as claimed in claim 2, wherein the outlet end of the pressure release channel is connected to a flexible air tube, the flexible air tube is provided with a gas release control valve, the gas release control valve comprises a flat outer tube capable of being inserted into the mouth of the human body and a valve core for controlling the on-off of the outer tube, the valve core comprises a fixed block fixed in the outer tube, a movable block which is arranged on the outer tube in a sealing and sliding manner and is matched with the fixed block to seal the outer tube, and an outer tube closing spring for driving the movable block to be separated from the fixed block to close the outer tube, the movable block extends out of the outer tube, a guide ring for guiding the gas release control valve to extend out of the gas outlet is arranged in the gas outlet, and the outer tube is arranged in.

4. The canister structure with time-shift delay mechanism as claimed in claim 3, wherein said outer tube is hooked on said guide ring by said moving block.

5. The canister structure with the time-space switching delay mechanism as claimed in claim 2, 3 or 4, wherein the air outlet is provided with an air outlet cover, and the air outlet cover and the canister are integrally formed.

6. The canister structure with time-space switching delay mechanism as claimed in claim 2, 3 or 4, wherein the air inlet hole is provided with an air inlet hole cover, the air inlet hole cover and the canister are integrally formed together, the air inlet hole cover is provided with an impact post on an outer surface thereof and a connecting sleeve on an inner surface thereof, the connecting sleeve is connected with the central shaft through a spline, an avoiding gap is provided between the central shaft and the air inlet hole cover, and the impact post protrudes out of the air inlet hole toward the outside of the canister when the air inlet hole cover is disengaged and moved to abut against the central shaft.

Technical Field

The invention relates to fire-fighting equipment, in particular to a canister structure provided with a time-space conversion delay mechanism.

Background

A self-demand fire-fighting respirator is a tool which is worn for fire fighting and prevents smoke poisoning, and comprises a head cover and a canister for filtering inhaled air. The inside of the canister is provided with two grid plates which divide the canister into an air inlet cavity, a canister material storage cavity and an air outlet cavity, the air inlet cavity is provided with an air inlet hole, and the air outlet cavity is provided with an air outlet hole. In order to pollute the inside of the canister by dust and the like in the storage process, hole plugs can be inserted and pulled on the air inlet hole and the air outlet hole. When in use, the hole plugs in the air inlet hole and the air outlet hole are pulled out. The existing canister has the following defects: the time for air to flow through the toxin filtering material storage cavity is short, so that the toxin filtering effect is poor; the sealing of the air inlet/outlet hole is performed by providing a plug so as to be able to be inserted and removed, and the sealing is likely to be poor due to looseness.

Disclosure of Invention

The invention aims to provide a canister structure provided with a time-space conversion delay mechanism and capable of prolonging the contact time of gas and a canister material, and solves the problem of poor canister effect caused by short time of air flowing through a canister material storage cavity.

The technical problem is solved by the following technical scheme: the utility model provides an establish time-space conversion delay mechanism's canister structure, includes the canister, be equipped with two grid plates in the canister, the grid plate is divided into air inlet chamber, toxin filtering material storage chamber and play air cavity with the canister, the air inlet chamber is equipped with the inlet port, it is equipped with the venthole to go out the air cavity, its characterized in that, toxin filtering material storage intracavity is equipped with time-space conversion delay mechanism, time-space conversion delay mechanism includes center pin and the spacer of the helical structure who sets up in the center pin, the center pin extends along the direction of distribution of inlet port and venthole, form the helical air flue between the wall of spacer, center pin and canister, the edge that the center pin was kept away from to the spacer together with canister's internal surface sealing connection. When in use, the invention is fixed on the head cover by butting the air outlet with the head cover. When gas flows through canister storage space and crosses space-time conversion delay mechanism, the air current is from the flow of spiral air flue to realize that the space trades the time, with the time of extension gas flow in order to prolong the poison time, thereby play the effect that improves the poison effect of straining.

Preferably, a flexible layer is arranged on the inner peripheral surface of the toxin filtering material storage cavity, a sealed air cavity is formed between the flexible layer and the peripheral surface of the toxin filtering tank, oxygen is filled in the sealed air cavity to generate positive pressure, so that the flexible layer is in sealing and abutting connection with the edge, far away from the central shaft, of the separation sheet, the central shaft is in sealing and rotating connection with the two grid plates, the central shaft extends into the air inlet hole, the sealed air cavity is provided with a pressure relief channel communicated with the air outlet cavity, and a control valve is arranged on the pressure relief channel. After a certain period of use, the air flow forms relatively fixed fluid channels in the toxic filter material, thereby resulting in insufficient use of the toxic filter material. This technical problem can be overcome to this technical scheme, specifically for open the control valve make the oxygen in the sealed air cavity flow out for the user supports, then make the spacer rotate through inlet port drive center pin, produce the clearance between the edge that flexible layer and spacer kept away from the center pin after the atmospheric pressure in the sealed air cavity descends, the drive is located the interior toxicity filtering material of spiral drive along center pin axial spiral removal when the spacer rotates, then fall back from the clearance in the direction after being blockked by the division board, above process realizes forming relatively fixed fluid passage in the toxicity filtering material to the stirring of toxicity filtering material and destruction. The formation of the gap can affect the secondary seal by matching the effect of the fluid channel and preventing the spacer from damaging the flexible layer. The flexible layer forms a sealed air cavity, and the sealing is performed by oxygen filling, so that the sealing effect is good, the rotation of the toxin filtering material can be avoided, namely, the oxygen deficiency generated by a user when the toxin filtering material is temporarily used can be avoided, and the oxygen has the function of dual purposes. And after stirring is finished, filtering by the toxin filtering material. When the air bag is used next time, oxygen is charged into the sealed air cavity again.

Preferably, the outlet end of the pressure relief channel is butted with a flexible air pipe, the flexible air pipe is provided with an air relief control valve, the air relief control valve comprises an outer pipe which is of a flat structure and can be inserted into the mouth of a human body and a valve core for controlling the on-off of the outer pipe, the valve core comprises a fixed block fixed in the outer pipe, a movable block which is arranged on the outer pipe in a sealing and sliding mode and used for sealing the outer pipe in a sealing and penetrating mode, and an outer pipe opening spring for driving the movable block to be separated from the fixed block and enabling the outer pipe to be opened, the movable block extends out of the outer pipe, a guide ring for guiding the air relief control valve to extend out of an air outlet hole is. When oxygen in the sealed air cavity is discharged, the flexible air pipe is expanded and extended, then the flexible air pipe is extended from the air outlet hole, a user uses the mouth to contain the air discharge control valve, the air suction bites the part of the movable block protruding out of the outer pipe to enable the movable block to contract inwards, and as a result of the contraction, the air discharge control valve is opened, and the oxygen flows into the mouth of the user. When the respirator is used for breathing, the occlusion effect on the movable block is released, so that oxygen cannot flow out, and the waste of oxygen can be avoided, and the service life can be prolonged. The outer pipe penetrates through the guide ring, so that the air discharge control valve reliably extends out of the air outlet hole.

Preferably, the outer tube is hooked on the guide ring through the movable block. The phenomenon that the air charging control valve falls into the air charging cavity due to falling off from the guide ring and the air discharging control valve cannot extend out of the air outlet hole when oxygen is discharged can be prevented. The safety and the reliability are good.

Preferably, the air outlet hole is provided with an air outlet hole cover, and the air outlet hole cover and the canister are integrally formed together. The sealing reliability of the inflation hole can be improved.

Preferably, the air inlet hole is provided with an air inlet hole cover, the air inlet hole cover and the canister are integrally formed together, the outer surface of the air inlet hole cover is provided with an impact column, the inner surface of the air inlet hole cover is provided with a connecting sleeve which is sleeved on the central shaft, the connecting sleeve is connected with the central shaft through a spline, an avoiding gap is arranged between the central shaft and the air inlet hole cover, and the impact column protrudes out of the air inlet hole towards the outside of the canister when the air inlet hole cover is separated and moves to be abutted against the central shaft. The sealing reliability of the air inlet can be improved, and the air inlet hole cover can be conveniently opened in a mode of impacting the impact column. Meanwhile, the impact column can also lengthen the central shaft and extend out of the air inlet hole so as to improve the convenience when the central shaft is rotated.

Preferably, the canister is made of plastic.

The invention has the following advantages: the time that the gas flows through the storage space of the toxin filtering material can be prolonged under the condition that the length of the storage space of the toxin filtering material is not increased, and the effect of improving the toxin filtering effect is achieved; can stir the toxin filtering material to improve the use effect of the toxin filtering material.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is an enlarged schematic view of the air release control valve.

In the figure: the gas canister comprises a canister 1, an air inlet section 11, an air inlet hole 111, an air inlet hole cover 112, an impact column 113, a connecting sleeve 114, an air outlet section 12, an air outlet hole 121, an air outlet hole cover 122, a grid plate 13, an air inlet cavity 14, a gas filter material storage cavity 15, an air outlet cavity 16, filter paper 17, a time-space conversion delay mechanism 4, a central shaft 41, a spacer 42, an edge 421 of the spacer far away from the central shaft, a spiral air channel 43, a flexible layer, a sealing air cavity 51, a pressure relief channel 52, a flexible air pipe 53, a gas release control valve 6, an outer pipe 61, a valve core 62, a movable block 622, an outer pipe closing spring 623, a guide ring 63 and an.

Detailed Description

The invention is further described with reference to the following figures and examples.

Referring to fig. 1 and 2, a canister structure provided with a time-space conversion delay mechanism includes a canister 1. The canister is made of plastic. The canister includes an air inlet section 11 and an air outlet section 12. The air inlet section 11 and the air outlet section 12 are hermetically connected together. Two grid plates 13 are arranged in the canister. The canister is divided into an inlet chamber 14, a canister storage chamber 15 and an outlet chamber 16 by two grid plates. The air intake chamber 14 and the toxic material storage chamber 15 are both located within the air intake section. The air inlet section 11 is provided with an air inlet hole 111 communicated with the air inlet cavity. The intake opening is provided with an intake opening cover 112. The air inlet cover and the canister are integrally formed together. The outer surface of the intake port cover is integrally formed with a striking pin 113. The impact column is protruded out of the air inlet hole towards the outside of the canister. The interior surface of the inlet port cover is provided with a nipple 114. The air outlet section is provided with an air outlet 121. The air outlet is provided with an air outlet cover 122. The vent cover and the canister are integrally formed together. The air outlet cavity 16 is provided with filter paper 17 covered on the grid plate.

The time-space conversion delay mechanism 4 is arranged in the toxin filtering material storage cavity 15. The time-space switching delay mechanism includes a central shaft 41 and a spacer 42 of a spiral structure disposed in the central shaft. The central shaft extends along the distribution direction of the air inlet holes and the air outlet holes. The inner peripheral surface of the toxin filtering material storage cavity is provided with a flexible layer 5. A sealed air chamber 51 is formed between the flexible layer and the canister periphery. The sealed air cavity is filled with oxygen to generate positive pressure so that the flexible layer is in sealing and abutting connection with the edge of the separation sheet far away from the central shaft. The spacers, the central shaft and the flexible layer form a helical air passage 43 therebetween. Two ends of the central shaft are connected on the two grid plates in a sealing and rotating way. The central shaft extends into the inlet opening. The central shaft is connected with the connecting sleeve through a spline. An avoiding gap S is arranged between the central shaft and the air inlet hole cover. When in use, the impact column is impacted to enable the air inlet hole cover to be detached. The escape space S provides a movement space when the intake hole cover is removed and moved. The air inlet hole cover is moved to be abutted with the central shaft, the air inlet hole cover is separated before the air inlet hole cover is moved to be abutted with the central shaft, the impact column is protruded out of the air inlet hole towards the outside of the canister. The sealed air cavity is provided with a pressure relief channel 52 communicated with the air outlet cavity. A valve (not shown in the figure, a manual valve) is arranged on the pressure relief channel. The outlet end of the pressure relief channel is butted with a flexible air pipe 53. The flexible air pipe is provided with an air relief control valve 6. The air release control valve includes an outer tube 61 of a flat structure and a spool 62 for controlling the opening and closing of the outer tube. The outer tube 61 can be inserted into the mouth of the human body. The valve core comprises a fixed block 621 fixed in the outer tube, a movable block 622 which is arranged on the outer tube in a sealing and sliding mode and is matched with the fixed block to seal the outer tube, and an outer tube closing spring 623 which drives the movable block to be separated from the fixed block to enable the outer tube to be sealed. The movable block extends out of the outer surface of the outer pipe. The air outlet is internally provided with a guide ring 63 for guiding the air discharge control valve to extend out of the air outlet. The outer tube is arranged in the guide ring in a penetrating way. The outer pipe is hooked on the guide ring through the movable block.

When in use, the end of the canister provided with the air outlet is fixed with the connecting hole on the head cover. The poison filtering material storage cavity is filled with poison filtering materials. When the poison needs to be filtered, the impact column is impacted to enable the impact column to contract inwards, so that the air inlet hole cover is opened, and the air outlet hole cover is knocked down. When the gas passes through the storage space of the toxic filtering material, the gas only passes through the spiral air passage 43 and passes through the time-space conversion delay mechanism, so that the time delay effect is achieved.

When the materials at the two ends need to be stirred to destroy the relatively fixed fluid channel formed in the toxin filtering material, the control valve is opened, so that the pressure in the sealed air cavity flows to the flexible air pipe, the air discharge control valve 6 extends into the hood through the air outlet hole, and then a user holds the air discharge control valve 6 with the mouth. When breathing in, the moving block is bitten, so that the moving block retracts, the outer tube is opened as a result of the retraction, when oxygen is sucked and breathed out, the biting force on the moving block is released, and the outer tube is closed under the action of the outer tube closing spring, namely the air discharge control valve 6 is closed. When oxygen flows into the flexible air tube, the pressure in the sealed air cavity is reduced to lose the sealing effect on the isolating sheet, then the impact column is grabbed to rotate the central shaft, the central shaft drives the isolating sheet to rotate, so that the isolating sheet drives the toxin filtering material to axially and spirally move along the central shaft, and the flexible layer and the filtering blades flow back to realize stirring of the toxin filtering material to destroy a relatively fixed fluid channel formed in the toxin filtering material.