Quick change structure for oxygen generation tank of respirator

Abstract

The utility model discloses an oxygen generation tank quick-change structure of a respirator, and relates to the technical field of respirators, the oxygen generation tank quick-change structure comprises a male plug on an oxygen generation tank and a female plug on the respirator, and the male plug is limited through a limiting assembly after being inserted into the female plug; the head of the plug male head is provided with an extension part A and an extension part B with the diameter smaller than that of the extension part A. The head of the plug female head is provided with an extension part C and an extension part D with the diameter smaller than that of the extension part C. The extension part A and the extension part B are inserted into the extension part C and the extension part D respectively. Therefore, the problems existing in chemical oxygen respirators on the market at present are solved, secondary use or even repeated use of the chemical oxygen respirators is achieved in the mode that the oxygen generating tank is rapidly replaced, the service life is prolonged in a disguised mode, cost is reduced, and waste is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of respirators, in particular to a quick replacement structure of an oxygen generator tank of a respirator. BACKGROUND

[0002] Chemical oxygen respirators are commonly used in emergency rescue and escape fields, and are personal respiratory protection devices made by using chemical oxygen generation principles. During the entire use process, respiratory movements are isolated from the outside world and are not harmed by any toxic, harmful gases and smoke. Therefore, chemical oxygen respirators are suitable for various toxic, harmful gases and oxygen-deficient environments. A chemical oxygen respirator generally consists of a face mask, a breathing mask, an oxygen generator tank, and a gas bag.

[0003] Current chemical oxygen respirators on the market are generally designed according to usage times of 15 minutes, 20 minutes, 25 minutes, 30 minutes, 60 minutes, and 240 minutes. The difference in minutes mainly comes from the use amount of potassium superoxide to control. The more the number of minutes, the longer the use and protection can be met, but it brings a heavier weight. Current chemical oxygen respirators on the market are mostly disposable. After use, not only is the oxygen generator tank scrapped when the oxygen generator is used up, but also the entire chemical oxygen respirator cannot be used again due to the inability to replace the oxygen generator tank, which increases the use cost and causes waste. Moreover, after reaching the usage time, if further use is required, the old chemical oxygen respirator must be removed and a new chemical oxygen respirator must be worn, which greatly wastes time. CONTENT OF THE INVENTION

[0004] To solve the above-mentioned problems of chemical oxygen respirators on the market, realize the secondary or even multiple use of chemical oxygen respirators, reduce costs, and reduce waste, the present application provides a quick replacement structure of an oxygen generator tank of a respirator.

[0005] The quick replacement structure of an oxygen generator tank of a respirator provided by the present application adopts the following technical scheme.

[0006] A quick replacement structure of an oxygen generator tank of a respirator includes a plug-in male head on the oxygen generator tank and a plug-in female head on the respirator. The plug-in male head is positioned and arranged by a limiting assembly after being inserted into the plug-in female head.

[0007] The head of the plug-in male head is provided with an extension A and an extension B with a smaller diameter than the extension A. The head of the plug-in female head is provided with an extension C and an extension D with a smaller diameter than the extension C. The extension A and the extension B are respectively inserted into the extension C and the extension D.

[0008] The limiting assembly includes an elastic ring, which is clamped on the extension C, a clamping groove is formed on the extension C, and an annular clamping groove is formed on the outer diameter of the plug male head, and the elastic ring is clamped into the annular clamping groove after passing through the clamping groove.

[0009] By adopting the above technical scheme, the oxygen generator tank can be quickly connected with the respirator through the plug male head and the plug female head, the disassembly and installation convenience of the oxygen generator tank is improved, quick replacement is realized, and the oxygen generator tank and the respirator can be limited from accidental separation through the limiting assembly, so that the safety is improved. Through the arrangement of the elastic ring, the extension C and the plug male head can be clamped, the axial movement between the plug male head and the extension C is limited, and the plug male head and the plug female head are prevented from being automatically separated.

[0010] Optionally, the extension A and the extension B are coaxially arranged.

[0011] Optionally, the extension C and the extension D are coaxially arranged.

[0012] Optionally, the outer diameter of the head of the extension A is smaller than the outer diameter of the root, and the inner diameter of the head of the extension C is larger than the inner diameter of the root.

[0013] By adopting the above technical scheme, through the structural design of the extension A and the extension C, the extension A is inserted into the extension C when the plug male head and the plug female head are connected, which is more easy to align and guide.

[0014] Optionally, a sealing groove is formed on the outer diameter of the extension A, and a sealing ring is arranged in the sealing groove.

[0015] By adopting the above technical scheme, through the arrangement of the sealing ring, a sealing effect is achieved between the outer diameter of the extension A and the inner diameter of the extension C, the air tightness of the connection between the oxygen generator tank and the respirator is ensured, and air leakage is prevented.

[0016] Optionally, the outer diameter of the head of the extension B is smaller than the outer diameter of the root.

[0017] By adopting the above technical scheme, through the structural design of the extension B, the extension B is better aligned and inserted into the extension D.

[0018] Optionally, the elastic ring is C-shaped, the two ends of the elastic ring are arc-shaped, the two ends of the elastic ring are clamped on the extension C, and the clamping groove is formed at the clamped position of the extension C.

[0019] Optionally, the limiting assembly further includes an elastic ring shell, the elastic ring shell is arranged on the plug male head, a key hole is formed on the elastic ring shell, a disengagement key is arranged in the key hole, and the disengagement key abuts against the middle section of the elastic ring.

[0020] By adopting the technical scheme, when the oxygen generator tank needs to be disassembled, only the disengagement button needs to be pressed, the disengagement button pushes the elastic middle section to move, so that the two ends of the elastic ring are disengaged from the clamping groove, the insertion male head and the insertion female head lose the limiting, and the oxygen generator tank and the respirator can be separated.

[0021] Optionally, an elastic ring shell ring groove is formed on the insertion female head, an axial section of the elastic ring shell is in a U shape, and one end of the elastic ring shell is clamped into the elastic ring shell ring groove.

[0022] By adopting the technical scheme, the elastic ring shell is limited and fixed through the elastic ring shell ring groove, and the elastic ring shell is prevented from moving at will.

[0023] To sum up, the present application at least has the following beneficial effects:

[0024] 1. Through the insertion male head and the insertion female head, the oxygen generator tank can be quickly connected with the respirator, the disassembly and installation convenience of the oxygen generator tank is improved, quick replacement is realized, the respirator no longer needs to increase the use time length by increasing the amount of medicine, the overall weight is reduced, the mobility of the user is not affected, the oxygen generator tank is replaced quickly, and in the case that the tank source is sufficient, unlimited endurance is realized, the use time length in various environments is ensured, the mobility is ensured, and the problem of medicine waste in short-time use is avoided.

[0025] 2. Through the limiting assembly, the limiting is realized, the oxygen generator tank and the respirator are prevented from being accidentally separated, the safety is improved, through the elastic ring, the protruding part C and the insertion male head are clamped, the axial movement between the insertion male head and the protruding part C is limited, and the insertion male head and the insertion female head are prevented from being automatically separated. When the oxygen generator tank needs to be disassembled, only the disengagement button needs to be pressed, the disengagement button pushes the elastic middle section to move, so that the two ends of the elastic ring are disengaged from the clamping groove, the insertion male head and the insertion female head lose the limiting, and the oxygen generator tank and the respirator can be separated. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0027] Figure 1 is a chemical oxygen respirator structure schematic view.

[0028] Figure 2 is a partial structure schematic view of the quick replacement structure.

[0029] Figure 3 is a top view schematic diagram of the oxygen generator tank quick change structure.

[0030] Figure 4 is Figure 3 is a sectional view schematic diagram along the section line A-A.

[0031] Figure 5 is Figure 4 is an enlarged schematic diagram of the partial A.

[0032] Figure 6 is a side view schematic diagram of the oxygen generator tank quick change structure.

[0033] Figure 7 is Figure 6 is a sectional view schematic diagram along the section line B-B.

[0034] Figure 8 is Figure 7 is an enlarged schematic diagram of the partial B.

[0035] Figure 9 is a schematic diagram of the elastic ring and the disengagement button structure.

[0036] Figure 10 is another view schematic diagram of the elastic ring and the disengagement button structure.

[0037] The reference signs are as follows: 1, oxygen generator tank; 2, extension part A; 3, extension part B; 4, extension part C; 5, extension part D; 6, sealing ring; 7, elastic ring; 8, clamping groove; 9, annular clamping groove; 10, elastic ring shell; 11, disengagement button; 12, elastic ring shell annular groove. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] The following will be described in detail with reference to the drawings in the embodiments of the present application. Figures 1 to 10 The present application will be further described in detail.

[0040] The embodiments of the present application disclose an oxygen generator tank quick change structure of a respirator.

[0041] Reference Figures 1 to 10The application discloses a quick replacement structure of an oxygen generator tank of a respirator, which comprises a plug male head on the oxygen generator tank and a plug female head on the respirator, and the plug male head is limited by a limiting assembly after being inserted into the plug female head.

[0042] The head of the plug male head is coaxially provided with a protruding part A2 and a protruding part B3 with a smaller diameter than the protruding part A2, the head of the plug female head is coaxially provided with a protruding part C4 and a protruding part D5 with a smaller diameter than the protruding part C4, the protruding part A2 is inserted into the protruding part C4, and the protruding part B3 is inserted into the protruding part D5.

[0043] The head of the protruding part A2 has a smaller outer diameter than the root, and the head of the protruding part C4 has a larger inner diameter than the root.

[0044] A sealing groove is formed in the outer diameter of the head of the protruding part A2, and a sealing ring 6 is arranged in the sealing groove.

[0045] The protruding part B3 is stepped along the axial direction, and the head has a smaller outer diameter than the root.

[0046] The limiting assembly comprises an elastic ring 7, the elastic ring 7 is an elastic piece, the elastic ring 7 is clamped on the protruding part C4, a clamping groove 8 is formed in the protruding part C4, and an annular clamping groove 9 is formed in the outer diameter of the plug male head.

[0047] The elastic ring 7 is C-shaped, the two ends of the elastic ring 7 are arc-shaped, the two ends of the elastic ring 7 are clamped on the protruding part C4, and the clamping groove 8 is formed in the clamped position of the protruding part C4.

[0048] The limiting assembly further comprises an elastic ring shell 10 arranged on the plug male head, a key hole is formed in the elastic ring shell 10, a disengaging key 11 is arranged in the key hole, and the disengaging key 11 is in abutment with the middle section of the elastic ring 7. When the oxygen generator tank 1 needs to be disassembled, the disengaging key 11 is only needed to be pressed to push the elastic middle section to move, because the two ends of the elastic ring 7 are arc-shaped, the two ends of the elastic ring 7 can be better disengaged from the clamping groove 8, the limiting between the plug male head and the plug female head is lost, and then the oxygen generator tank 1 can be separated from the respirator.

[0049] An elastic ring shell ring groove 12 is formed in the plug female head, the axial section of the elastic ring shell 10 is U-shaped, and one end of the elastic ring shell 10 is clamped into the elastic ring shell ring groove 12. The elastic ring shell 10 is limited and fixed through the arrangement of the elastic ring shell ring groove 12, and the elastic ring shell 10 is prevented from moving at will.

[0050] When the chemical oxygen respirator is normally used by a person, when the designed use time is reached, the oxygen generator tank 1 can be disassembled after the disengaging key 11 is pressed, and a new oxygen generator tank 1 is inserted into the plug female head through the plug male head, and the replacement operation is completed.

[0051] The plug male head and the plug female head are arranged, the oxygen generator tank 1 can be quickly connected with the respirator, the disassembly and installation convenience of the oxygen generator tank 1 is improved, and quick replacement is realized.

[0052] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "two ends", "one end" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, unless otherwise specified and limited, it should be explained that the term "connection" should be understood in a broad sense, for example, it can be mechanical connection or electrical connection, and can be the communication between two elements, and can be direct connection or indirect connection through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above-mentioned term can be understood according to the specific circumstances.

[0053] The above merely describes the preferred embodiments of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A quick-change structure for the oxygen tank of a respirator, characterized in that, It includes a male connector on an oxygen generator and a female connector on a respirator, wherein the male connector is limited by a limiting component after being inserted into the female connector; The male connector has a protruding part A and a protruding part B with a diameter smaller than that of the protruding part A. The female connector has a protruding part C and a protruding part D with a diameter smaller than that of the protruding part C. The protruding parts A and B are respectively inserted into the protruding parts C and D. The limiting component includes an elastic ring, which is clamped onto the protrusion C. A slot is provided on the protrusion C, and an annular slot is provided on the outer diameter of the male connector. The elastic ring passes through the slot and is then engaged in the annular slot.

2. The quick-change structure for the oxygen tank of a respirator according to claim 1, characterized in that, The protrusion A and protrusion B are coaxially arranged.

3. The quick-change structure for the oxygen tank of a respirator according to claim 1, characterized in that, The protrusion C and the protrusion D are coaxially arranged.

4. The quick-change structure for the oxygen tank of a respirator according to claim 1, characterized in that, The outer diameter of the head of the protrusion A is smaller than the outer diameter of the root, and the inner diameter of the head of the protrusion C is larger than the inner diameter of the root.

5. The quick-change structure for the oxygen tank of a respirator according to claim 1, characterized in that, A sealing groove is provided on the outer diameter of the protrusion A, and a sealing ring is provided in the sealing groove.

6. The quick-change structure for the oxygen tank of a respirator according to claim 1, characterized in that, The outer diameter of the head of the protrusion B is smaller than the outer diameter of the root.

7. The quick-change structure for the oxygen tank of a respirator according to claim 1, characterized in that, The elastic ring is C-shaped, and both ends of the elastic ring are clamped on the protrusion C. The slot is opened on the protrusion C at the clamped position.

8. The quick-change structure for the oxygen tank of a respirator according to claim 7, characterized in that, The limiting component also includes an elastic ring shell, which is disposed on the male connector. The elastic ring shell has a button opening, and a release button is provided inside the button opening. The release button abuts against the middle section of the elastic ring.

9. The quick-change structure for the oxygen tank of a respirator according to claim 8, characterized in that, An elastic ring groove is provided on the plug-in female end. The axial cross-section of the elastic ring is U-shaped, and one end of the elastic ring is inserted into the elastic ring groove.

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