Respirator harness

Abstract

The present application relates to the technical field of breathing equipment, in particular to a breathing apparatus back, comprising a main body frame, the bottom of the main body frame is provided with a joint for connecting a gas cylinder, the joint is fixedly connected with the main body frame; the main body frame is further provided with a fixing belt, the main body frame is provided with a mounting hole corresponding to the shape of the fixing belt, the fixing belt is arranged through the mounting hole, and a connecting piece is arranged between the head and tail of the fixing belt; the connecting piece comprises a fixed buckle and a hinged buckle, the fixed buckle is fixedly connected with one end of the fixing belt, and the hinged buckle is fixedly connected with the other end of the fixing belt, a plug-in piece is arranged on the fixed buckle, a plug-in plate is further arranged on the hinged buckle, the plug-in plate is hinged with the hinged buckle and is used for driving the hinged buckle to rotate, and a plug-in slot is arranged on the plug-in plate corresponding to the plug-in piece, and the plug-in slot is used for embedding the plug-in piece. When the hinged buckle is adjusted, the shape of the fixing belt is maintained without loosening the connection, the gas cylinder can be limited in the fixing belt, so that the situation that the gas cylinder is poured out from the fixing belt when being replaced is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of breathing equipment, in particular to a breathing apparatus back. BACKGROUND

[0002] The air respirator is a kind of self-contained open air respirator, which is widely used in fire fighting, chemical industry, ship and other departments, and is used for firemen or rescue workers to safely and effectively carry out fire extinguishing, rescue and rescue work in various environments such as smoke, toxic gas, steam and oxygen deficiency. The air respirator in the prior art is usually composed of a compressed gas cylinder and a full face mask, and is usually held by a belt. Since the volume and mass of the gas cylinder are large, when the gas cylinder is replaced, the fixing belt of the cylinder is loosened, and the cylinder is easily tilted. The convenience of replacement is affected. SUMMARY

[0003] In order to solve the problem that the air cylinder is easily tilted when the fixing belt of the cylinder is loosened in the prior art, the present application provides a breathing apparatus back, and the specific scheme is as follows.

[0004] A breathing apparatus back includes a main body frame, the bottom of the main body frame is provided with a joint for connecting a gas cylinder, and the joint is fixedly connected with the main body frame.

[0005] The main body frame is also provided with a fixing belt, the shape of the fixing belt on the main body frame is provided with a mounting hole, the fixing belt is arranged through the mounting hole, and a connecting piece is arranged between the first end and the second end of the fixing belt.

[0006] The connecting piece includes a fixed buckle and a hinged buckle, one end of the fixed buckle is fixedly connected with the fixing belt, the other end of the fixing belt is fixedly connected with the hinged buckle, the fixed buckle is provided with a plug-in piece, the hinged buckle is also provided with a plug-in plate, the plug-in plate is hinged with the hinged buckle and is used to drive the hinged buckle to rotate, the plug-in plate is provided with a plug-in slot corresponding to the plug-in piece, and the plug-in slot is used for embedding the plug-in piece.

[0007] By adopting the above technical scheme, the fixed buckle and the hinged buckle are fixedly connected with the fixing belt on the corresponding side. Since the fixed buckle and the hinged buckle are hinged, the fixed buckle and the hinged buckle can be adjusted by rotating, but the connection will not be loosened during adjustment, so that the shape of the fixing belt is maintained. Therefore, when the plug-in piece is pulled out of the plug-in slot, the gas cylinder can be limited in the fixing belt, thereby reducing the situation that the gas cylinder is tilted out of the fixing belt during replacement. The gas cylinder can be positioned and blocked by the fixing belt during replacement, thereby reducing the situation of tilting during replacement. After replacement is completed, the plug-in piece is inserted into the plug-in slot again, so that the replacement is more convenient.

[0008] Optionally, the plug-in part comprises a convex head, a limiting slot is opened at one end of the convex head away from the plug-in plate, a sliding sheet is arranged in the plug-in plate, one end of the sliding sheet extends out of the plug-in plate, the plug-in slot is arranged at the sliding sheet and is arranged in position and shape corresponding to the convex head, the sliding sheet is in sliding connection with the plug-in plate, a spring is further arranged in the plug-in plate, the spring has a tendency to push the plug-in plate towards the plug-in slot, when the convex head extends into the plug-in slot, the sliding sheet moves towards a direction away from the plug-in slot, after the convex head extends into the plug-in slot, the sliding sheet is embedded in the limiting slot of the convex head.

[0009] By adopting the technical scheme, the convex head can be sent into the plug-in slot when plugging in, and the sliding sheet driven by the spring is arranged, when the convex head is sent into the plug-in slot, the sliding sheet is pushed to move towards a direction away from the plug-in slot, when the convex head continues to extend inwards, the sliding sheet can be placed into the limiting slot on the convex head, thereby limiting the position of the convex head, clamping the convex head in the plug-in plate, reducing the situation of connection falling off, when falling off, the sliding plate is pushed to one side, and then the convex head can be taken out.

[0010] Optionally, the sliding sheet is provided with two, limiting rods are arranged on the two sliding sheets, the limiting rods are arranged at two ends in the length direction of the plug-in slot, limiting sheets are arranged in the plug-in plate, the limiting sheets are also arranged at two ends in the length direction of the plug-in slot, the two sliding sheets slide towards each other, clamping rods are further arranged on the limiting rods, the clamping rods are arranged at two ends in the width direction of the plug-in slot, the springs are arranged between the limiting rods of the sliding sheets and the other sliding sheets, one end of the spring is fixedly connected with the limiting rod, the other end of the spring is fixedly connected with the clamping rod of the other sliding sheet.

[0011] By adopting the technical scheme, when the convex head is sent into the plug-in slot, the two sliding sheets move towards two sides, and the limiting rods can also push the sliding sheets to move towards a direction away from the plug-in slot in the movement process, so as to accelerate the speed of the sliding sheets, when the convex head is sent into the plug-in slot, the sliding sheets can move towards the limiting slot under the pulling of the spring, after the sliding sheets are embedded in the plug-in slot, the position of the sliding sheets can be fixed, and the connection and disassembly between the lap joint buckle and the fixed buckle can be realized by pressing the two sliding sheets.

[0012] Optionally, a guide inclined surface is opened on the sliding sheet corresponding to the pattern head, the two sides of the sliding sheet are both opened with the guide inclined surface, and the guide inclined surfaces are all inclined towards the plug-in slot.

[0013] By adopting the technical scheme, the guide inclined surfaces are arranged on the two sides of the sliding sheet, the convex head can move along the guide inclined surfaces when extending in and out, the convenience of sending in and out is improved, and the convenience of replacing the gas cylinder is further improved.

[0014] Optionally, the joint comprises a quick joint, and a quick pipe corresponding to the quick joint is further arranged on the main frame and detachably connected with the quick joint through insertion.

[0015] By adopting the above technical scheme, the quick joint is arranged to quickly realize installation of the gas cylinder, and the quick pipe matched with the quick joint is arranged to realize quick connection through insertion, thereby further improving the convenience of installation of the gas cylinder.

[0016] Optionally, an installation groove is hollowly arranged in the main frame, the installation groove is arranged through the main frame, and the installation groove is vertically arranged along the main frame and used for allowing the gas pipe of the respirator to pass through and be connected with the quick pipe.

[0017] By adopting the above technical scheme, the installation groove is hollowly arranged in the main frame, the gas pipe of the respirator can pass through the installation groove and be connected with the quick pipe, the gas pipe is arranged in the interior, and the gas pipe is prevented from being entangled with sundries during movement, thereby improving safety during use.

[0018] Optionally, a connecting groove is arranged on the side wall of the main frame, the connecting groove is communicated with the installation groove, the connecting groove is arranged at a position corresponding to the quick pipe, and the connecting groove is used for allowing the joint of the gas pipe to protrude.

[0019] By adopting the above technical scheme, the connecting groove is arranged on the side wall of the main frame, thereby facilitating connection of the quick pipe with the gas pipe, and facilitating replacement of the gas cylinder from the outside of the main frame.

[0020] Optionally, a waist support is further arranged on the main frame, the waist support is arranged in an arc shape, and the waist support is used for abutting against the waist of a wearer.

[0021] By adopting the above technical scheme, the waist support is arranged on the main frame, thereby increasing the force receiving area of the waist, making the force received by the waist more uniform, and making wearing more comfortable.

[0022] In summary, the present application has at least the following beneficial effects:

[0023] 1. The present application solves the problem that the steel cylinder is prone to falling when the fixing belt is loosened, and the steel cylinder is prone to tilting when fixed, thereby affecting the convenience during replacement. The present application is provided with the fixed buckle and the hinged buckle which are not loosened during adjustment, and the shape of the fixing belt is maintained. Therefore, when the insertion piece is pulled out from the insertion groove, the gas cylinder can be limited in the fixing belt, thereby reducing the situation that the gas cylinder falls out of the fixing belt during replacement. The gas cylinder can be positioned and blocked by the fixing belt during replacement, thereby reducing the situation that the gas cylinder falls during replacement. After replacement is completed, the insertion piece is inserted into the insertion groove again, thereby making replacement more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a perspective view of embodiment one.

[0025] Figure 2 is a perspective view of embodiment one.

[0026] Figure 3 is a perspective view of the fixed buckle and the hinged buckle in embodiment one.

[0027] Figure 4 is a sectional view of embodiment two.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1, main frame; 11, quick connector; 12, quick connector pipe; 13, mounting groove; 14, connecting groove; 15, waist support; 16, mounting hole;

[0030] 2, fixing belt;

[0031] 3, fixed buckle; 31, convex head; 311, limiting groove;

[0032] 4, hinged buckle; 41, insertion plate; 411, insertion groove; 412, sliding piece; 413, limiting rod; 414, limiting piece; 415, spring; 416, clamping rod; 417, guide inclined surface;

[0033] 5, sliding groove; 51, supporting rod; 511, sliding block; 512, pull rope; 513, elastic pad;

[0034] 6, winder; 7, elastic frame; 8, elastic member; DETAILED DESCRIPTION

[0035] The application will be further described in detail below with specific embodiments. Figures 1-4 The application will be further described in detail below with specific embodiments.

[0036] Embodiment one

[0037] A respirator back harness, as shown in Figure 1 and Figure 2 , comprises a main frame 1, the bottom of the main frame 1 is provided with a connector for connecting a gas cylinder, and the connector is fixedly connected with the main frame 1. The connector comprises a quick connector 11, and the main frame 1 is further provided with a quick connector pipe 12 corresponding to the quick connector 11, and the quick connector pipe 12 is detachably connected with the quick connector 11 in a plug-in manner.

[0038] As shown in Figure 1 and Figure 2 , the main frame 1 is internally hollowly provided with a mounting groove 13, the mounting groove 13 is arranged through the main frame 1, and the mounting groove 13 is arranged vertically along the main frame 1. In specific implementation, the mounting groove 13 is used for passing the gas pipe of the respirator to be connected with the quick connector pipe 12.

[0039] As shown in Figure 1 and Figure 2 shown, the side wall of the main frame 1 is also provided with a connecting groove 14, which is arranged corresponding to the position of the mounting groove 13, and the connecting groove 14 is communicated with the mounting groove 13 after penetrating through the main frame 1, and the connecting groove 14 is arranged corresponding to the position of the quick connector pipe 12. In specific implementation, the connector of the gas pipe is extended out of the connecting groove 14, and the connector of the gas pipe is connected with the quick connector pipe 12 after being extended out.

[0040] As shown in Figure 2 , the main frame 1 is also provided with a waist support 15, which is arranged in an arc shape, and the waist support 15 is arranged at the lower part of the main frame 1 and is fixedly connected with the main frame 1. In specific implementation, the waist support 15 abuts against the waist of the wearer.

[0041] As shown in Figure 2 and Figure 3 , the main frame 1 is also provided with a fixing belt 2, and the main frame 1 is provided with a mounting hole 16 corresponding to the shape of the fixing belt 2, the fixing belt 2 is arranged through the mounting hole 16, and the fixing belt 2 is provided with a connecting piece between the head and the tail. The connecting piece includes a fixed buckle 3 and a hinged buckle 4, the fixed buckle 3 is fixedly connected with one end of the fixing belt 2 by a screw, and the hinged buckle 4 is also fixedly connected with the other end of the fixing belt 2 by a screw.

[0042] As shown in Figure 3 , the fixed buckle 3 is provided with a plug-in piece, and the hinged buckle 4 is provided with a plug-in plate 41 corresponding to the plug-in piece, and the plug-in plate 41 is hinged with the hinged buckle 4. The plug-in plate 41 is provided with a plug-in groove 411 corresponding to the plug-in piece, and the position and shape of the plug-in groove 411 are arranged corresponding to the plug-in piece. In specific implementation, the plug-in plate 41 can drive the hinged buckle 4 to rotate when rotating, and the plug-in groove 411 is used for embedding the plug-in piece, and the fixed buckle 3 and the hinged buckle 4 can be detachably connected by pressing.

[0043] As shown in Figure 2 and Figure 3 , the plug-in piece includes a convex head 31, and the convex head 31 is provided with a limiting groove 311 at the end away from the plug-in plate 41. The plug-in plate 41 is provided with a sliding piece 412 inside, one end of the sliding piece 412 extends out of the plug-in plate, the sliding piece 412 is slidingly connected with the plug-in plate 41, and the sliding piece 412 is provided with two and arranged on both sides of the plug-in plate 41. The two sliding pieces 412 are provided with a limiting rod 413, the limiting rod 413 is integrally arranged with the sliding piece 412, and the limiting rod 413 is arranged at both ends of the plug-in groove 411 in the length direction. The plug-in plate 41 is also provided with a limiting piece 414 inside, the limiting piece 414 is also arranged at both ends of the plug-in groove 411 in the length direction, the limiting piece 414 is arranged along the direction of the limiting rod 413, the limiting piece 414 is integrally arranged with the plug-in plate 41, and the limiting piece 414 can limit the movement of the limiting rod 413.

[0044] As Figure 2 And Figure 3 As shown in the drawings, the limiting rod 413 is further provided with a clamping rod 416, the clamping rod 416 is vertically arranged on the limiting rod 413, and the clamping rod 416 is arranged at both ends of the width direction of the insertion slot 411. The spring 415 is further arranged between the two sliding pieces 412, and the spring 415 is arranged between the limiting rod 413 of the sliding piece 412 and the other sliding piece 412. One end of the spring 415 is fixedly connected with the limiting rod 413, and the other end of the spring 415 is fixedly connected with the other sliding piece 412. In specific implementation, the spring 415 has a tendency to push the insertion plate 41 towards the insertion slot 411, and when the convex head 31 extends into the insertion slot 411, the sliding piece 412 moves away from the insertion slot 411. When the convex head 31 extends into the insertion slot 411, the clamping rod 416 of the sliding piece 412 is embedded in the limiting groove 311 of the convex head 31, so as to be positioned. By pressing the sliding piece 412, the convex head 31 can be limited and loosened.

[0045] As Figure 2 And Figure 3 As shown in the drawings, the sliding piece 412 is provided with a guide inclined surface 417 corresponding to the graphic head, and the two sides of the sliding piece 412 are provided with the guide inclined surface 417, and the guide inclined surface 417 is inclined towards the insertion slot 411. In specific implementation, the convex head 31 can move along the guide inclined surface 417 when being sent in and out, so that the sending in and out is more smooth.

[0046] Working principle: when the gas cylinder is replaced, the quick tightening and loosening of the fixing belt 2 can be realized by pressing the sliding piece 412, and after the fixing belt 2 is loosened, the fixing belt 2 can still maintain a certain shape, reducing the situation of the gas cylinder falling out.

[0047] Example two

[0048] As Figure 4As shown, the main difference between the embodiment two and the embodiment one is that the sliding groove 5 is further arranged inside the main body frame 1 in the embodiment two, the sliding groove 5 is arranged through the mounting frame, the support rod 51 is arranged at the sliding groove 5, the sliding blocks 511 are arranged at the two sides of the support rod 51, the sliding blocks 511 are embedded and slidably connected in the sliding groove 5, and the support rod 51 slides in the sliding groove 5. The bottom end of the support rod 51 is provided with the elastic pad 513, and the elastic pad 513 is fixedly connected with the support rod 51. The top end of the support rod 51 is provided with the pull rope 512, the pull rope 512 is fixedly connected with the support rod 51, and the end of the pull rope 512 away from the support rod 51 is provided with the winder 6. The winder 6 is internally provided with a micro motor, and the rotating shaft of the micro motor is fixedly connected with the pull rope 512. In specific implementation, the winder 6 can release the pull rope 512 to release the support rod 51, and a part of the support rod 51 is still inside the main body frame 1 after being released. When the elastic pad 513 of the support rod 51 abuts against the ground, the support rod 51 can play a supporting role, and when the fire fighter uses the high-pressure water gun to spray water, the support rod 51 can play a certain supporting role to reduce the influence of the recoil force on the fire fighter. In other embodiments, the elastic pad 513 can be made of heat-resistant high polymer material, and the pull rope 512 can also be made of fiber rope or steel rope.

[0049] As shown in the embodiment two, Figure 4 The two sides of the main body frame 1 are further provided with the elastic frame 7, the elastic frame 7 is arranged in an arc shape and the arc center is arranged on one side close to the main body frame 1, and the upper and lower ends of the elastic frame 7 are fixedly connected with the main body frame 1. The elastic member 8 is arranged between the elastic frame 7 and the main body frame 1, one end of the elastic member 8 is fixedly connected with the elastic frame 7, and the other end of the elastic member 8 is fixedly connected with the main body frame 1. In specific implementation, the elastic frame 7 can be made of high polymer material with good strength and flexibility, and the elastic member 8 can be made of spring 415 and rubber. When the fire fighter uses the high-pressure water gun and the ground condition is not convenient for releasing the support rod 51, the elastic frame 7 can be used to lean against the wall to reduce the recoil force.

[0050] Working principle: when performing fire fighting work, the high-pressure water gun is used for spraying water in some cases, and the recoil force generated is large, so the support rod 51 can be released by the winder, and the support rod 51 is supported. When the support rod 51 is not convenient to release, the elastic frame 7 on the side can also be used for support.

[0051] The above is the preferred embodiment of the present application, which does not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A respirator backgear, characterized in that: Includes a main frame (1), the bottom of which is provided with a connector for connecting a gas cylinder, the connector being fixedly connected to the main frame (1); The main frame (1) is also provided with a fixing strap (2), and the main frame (1) has a mounting hole (16) corresponding to the shape of the fixing strap (2). The fixing strap (2) passes through the mounting hole (16) and a connector is provided between the beginning and end of the fixing strap (2). The connector includes a fixed buckle (3) and a hinge buckle (4). The fixed buckle (3) is fixedly connected to one end of the fixing strap (2), and the hinge buckle (4) is fixedly connected to the other end of the fixing strap (2). The fixed buckle (3) is provided with a plug-in component, and the hinge buckle (4) is also provided with a plug-in plate (41). The plug-in plate (41) is hinged to the hinge buckle (4) and is used to drive the hinge buckle (4) to rotate. The plug-in plate (41) is provided with a plug-in groove (411) corresponding to the plug-in component. The plug-in groove (411) is used for the plug-in component to be inserted. The shape (2) of the fixing strap is maintained by setting the fixed buckle (3) and the hinge buckle (4) so ​​that they will not loosen during adjustment; The connector includes a convex head (31), with a limiting groove (311) formed at one end of the convex head (31) away from the connector plate (41). A sliding piece (412) is provided inside the connector plate (41), with one end of the sliding piece (412) extending out of the connector plate (41). The connector groove (411) is located at the sliding piece (412) and is configured to correspond to the position and shape of the convex head (31). The sliding piece (412) is slidably connected to the connector plate (41). A spring (415) is also provided inside the plug plate (41). The spring (415) has the tendency to push the plug plate (41) toward the plug groove (411). When the convex head (31) extends into the plug groove (411), the sliding piece (412) moves away from the plug groove (411). After the convex head (31) extends into the plug groove (411), the sliding piece (412) is embedded in the limiting groove (311) of the convex head (31). Two sliding pieces (412) are provided, and each sliding piece (412) is provided with a limiting rod (413). The limiting rod (413) is located at both ends of the insertion slot (411) along its length. A limiting piece (414) is provided inside the insertion plate (41), and the limiting piece (414) is also located at both ends of the insertion slot (411) along its length. The two sliding pieces (412) slide towards each other. The limiting rod (413) is also provided with... A clamping rod (416) is provided, and the clamping rod (416) is respectively provided at both ends of the insertion groove (411) in the width direction. The springs (415) are all provided between the limiting rod (413) of the sliding piece (412) and another sliding piece (412). One end of the spring (415) is fixedly connected to the limiting rod (413), and the other end of the spring (415) is fixedly connected to the clamping rod (416) of the other sliding piece (412). The fixing band (2) can be quickly tightened or loosened by pressing the sliding piece (412), and the fixing band (2) can still maintain a certain shape after it is loosened; The main frame (1) is also provided with a sliding groove (5), which is provided through the mounting frame. A support rod (51) is provided at the sliding groove (5), and sliding blocks (511) are provided on both sides of the support rod (51). The sliding blocks (511) are embedded and slidably connected in the sliding groove (5), and the support rod (51) slides in the sliding groove (5).

2. The respirator backgear according to claim 1, characterized in that: The sliding piece (412) has a guide slope (417) corresponding to the graphic head. Both sides of the sliding piece (412) have guide slopes (417), and the guide slopes (417) are inclined toward the insertion groove (411).

3. The respirator backgear according to claim 1, characterized in that: The connector includes a quick connector (11), and the main frame (1) is also provided with a quick tube (12) corresponding to the quick connector (11). The quick tube (12) and the quick connector (11) are detachably connected by plugging.

4. The respirator backgear according to claim 3, characterized in that: The main frame (1) has a hollow interior with an installation groove (13). The installation groove (13) extends through the main frame (1) and is set vertically along the main frame (1). The installation groove (13) is used for the respirator's air tube to pass through and connect to the quick-connect tube (12).

5. The respirator backgear according to claim 4, characterized in that: A connecting groove (14) is provided on the side wall of the main frame (1). The connecting groove (14) is connected to the mounting groove (13). The connecting groove (14) is set at the position corresponding to the quick-connect pipe (12). The connecting groove (14) is used for the protrusion of the gas supply pipe connector.

6. The respirator backgear according to claim 1, characterized in that: The main frame (1) is also provided with a waist support (15), which is arranged in an arc shape and is used to support the waist of the wearer.

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