CN111167030B - Breathing apparatus - Google Patents
Breathing apparatus Download PDFInfo
- Publication number
- CN111167030B CN111167030B CN201911352166.9A CN201911352166A CN111167030B CN 111167030 B CN111167030 B CN 111167030B CN 201911352166 A CN201911352166 A CN 201911352166A CN 111167030 B CN111167030 B CN 111167030B
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- China
- Prior art keywords
- sliding
- back frame
- groove
- clamping groove
- lock catch
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/04—Couplings; Supporting frames
Abstract
The invention discloses a respirator, which comprises an oxygen bottle, a back frame, a vent pipe, braces and a rotary buckle structure; the invention carries out space transformation on the locking modes of two forms by a 180-degree rotation mode, firstly, the sliding connection of the sliding rotating block of the connecting plate and the sliding clamping groove of the back frame occurs before 180-degree rotation, the splicing of the telescopic column and the splicing hole and the lock catch of the lock catch rod and the positioning piece occur after 180-degree rotation, and the front and the back connecting forms are separated by rotation, so that the multi-deformation resistance of the structure is greatly increased, and even if the splicing of the telescopic column and the splicing hole and the lock catch of the lock catch rod and the positioning piece occur separation, the sliding rotating block of the connecting plate and the sliding clamping groove of the back frame can be separated in a sliding mode after 180-degree rotation, so the structure of the invention is more stable.
Description
Technical Field
The invention relates to a respirator, in particular to a connecting structure of an oxygen bottle and a back frame of the respirator.
Background
Air respirator is that rescue personnel is putting out a fire or when rescuing in emergency, for preventing to inhale harmful substance or the respiratory device who uses under the oxygen deficiency environment, air respirator can be equipped with the oxygen cylinder in order to supply the rescue personnel normal breathing, current general air respirator's structure includes the oxygen cylinder, the connecting band, the braces, the back of the body frame, the breather pipe, the face guard, the back of the body frame passes through the connecting band and connects the fastening with the oxygen cylinder, the braces is generally installed in back of the body frame both sides in order to supply the braces, breather pipe one end and oxygen cylinder intercommunication, the breather pipe other end is connected with the face guard, can take place unstable phenomenon when installing of back of the body frame and oxygen cylinder through the connecting band in the above-mentioned structure, lead to the oxygen cylinder to rock by a.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the problems that: provides a respirator with a stable connection between a back frame and an oxygen cylinder.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a respirator comprises an oxygen bottle, a back frame, a breather pipe, braces and a rotary buckle structure; two ends of the inner side of the back frame are respectively provided with a back belt; the upper end of the oxygen cylinder is connected with a breather pipe; the rotary buckle structure comprises a connecting plate, a sliding rotary block, a lock catch rod, a telescopic column, an extrusion spring and a positioning piece; the connecting plate is arranged on one side of the oxygen cylinder; a sliding rotating block is arranged in the middle of the outer side surface of the connecting plate; the upper end of the sliding rotating block is provided with a lock catch rod; a sliding clamping groove is formed in the middle of the outer side of the back frame from top to bottom; the upper end of the sliding clamping groove extends to the edge of the upper end of the back frame, and the lower end of the sliding clamping groove extends to the lower part of the middle part of the back frame; one side of the outer part of the sliding clamping groove of the back frame is provided with an inserting hole; a lock catch groove is communicated with the bottom and one side of the lower part inside the sliding clamp groove; the bottom of the lock catch groove is provided with a positioning piece; the sliding rotating block on the outer side of the connecting plate is inserted into the sliding clamping groove of the back frame in a sliding mode, and the sliding rotating block is inserted into the lower end of the sliding clamping groove in a sliding mode; one side of the connecting plate, which is close to the sliding rotating block, is provided with a connecting groove; an extrusion spring is arranged in the connecting groove; a telescopic column is inserted and connected into the connecting groove; the extrusion spring elastically extrudes the inner end of the telescopic column; the outer end of the telescopic column extends to the outer side of the connecting groove and is abutted against the other side of the outer part of the sliding clamping groove of the back frame; the sliding rotating block rotates 180 degrees in the lower end of the sliding clamping groove and drives the connecting plate and the locking rod to rotate; the connecting plate drives the telescopic column to abut against the other side of the outside of the sliding clamping groove of the back frame and rotationally slide to one side of the outside of the sliding clamping groove of the back frame, and the telescopic column is pushed and inserted into the inserting hole clamped in one side of the outside of the sliding clamping groove of the back frame through the extrusion of the extrusion spring; the lock catch rod rotates downwards from the upper end of the sliding rotating block and is connected to the positioning piece at the bottom of the lock catch groove in a lock catch mode after passing through the lock catch groove.
Furthermore, the outer end of the connecting groove of the connecting plate is provided with an annular limiting tooth; the outer sides of the periphery of the middle of the telescopic column are provided with annular telescopic grooves; the telescopic column is in sliding clamping connection with the annular limiting teeth of the connecting groove through the annular telescopic groove on the outer side of the periphery of the middle.
Furthermore, the depth of the lock catch groove is smaller than that of the sliding clamping groove.
Furthermore, the sections of the sliding clamping groove and the sliding rotating block are both in T-shaped structures; the sliding rotating block is a step-shaped cylinder.
Furthermore, the lock catch rod is of an L-shaped structure; the positioning piece is of an inverted U-shaped structure; the outer end of the lock catch rod is rotationally locked on the positioning piece.
Further, the outer end face of the telescopic column is provided with a wear-resistant coating; the wear-resistant coating is made of polytetrafluoroethylene materials.
Further, the device also comprises an isolating layer; the isolation layer is arranged in the middle of the inner side of the back frame; the isolating layer is made of elastic soft materials.
Further, the back frame is of a U-shaped structure; the back frame is made of plastic materials.
The invention has the advantages of
1. The connecting mode of the traditional oxygen cylinder and the back frame is changed, and the connecting stability and the mounting efficiency are improved; the invention realizes a triple connection structure and ensures the stability, firstly, a sliding clamping groove is arranged in the middle of the outer side of the back frame from top to bottom, a sliding rotating block is arranged in the middle of the outer side of the connecting plate, the sliding rotating block is inserted from the upper end of the sliding clamping groove of the back frame in a sliding way through the sliding rotating block on the outer side of the connecting plate, and the sliding rotating block is inserted into the lower end of the sliding clamping groove in a sliding way, so that a first-weight sliding clamping is formed; then the sliding rotating block rotates 180 degrees in the lower end of the sliding clamping groove and drives the connecting plate to rotate, the connecting plate drives the telescopic column to abut against and rotatably slide to one side of the sliding clamping groove of the back frame from the other side of the sliding clamping groove of the back frame, and meanwhile, the lock catch rod rotates downwards from the upper end of the sliding rotating block to reach the bottom of the lock catch groove, so that the second-fold rotating direction change is formed; finally, the telescopic column is pushed to be inserted into the inserting hole in one side of the sliding clamping groove of the back frame through the extrusion of the extrusion spring, and meanwhile, the outer end of the locking rod is locked and connected to the positioning piece at the bottom of the locking groove, so that the third insertion clamping positioning is formed, and the oxygen cylinder and the back frame are greatly improved in connection stability; and the whole installation process is a sliding and rotating process, so that the installation is quick and convenient.
2. The invention carries out space transformation on the locking modes of two forms by a 180-degree rotation mode, firstly, the sliding connection of the sliding rotating block of the connecting plate and the sliding clamping groove of the back frame occurs before 180-degree rotation, the splicing of the telescopic column and the splicing hole and the lock catch of the lock catch rod and the positioning piece occur after 180-degree rotation, and the front and the back connecting forms are separated by rotation, so that the multi-deformation resistance of the structure is greatly increased, and even if the splicing of the telescopic column and the splicing hole and the lock catch of the lock catch rod and the positioning piece occur separation, the sliding rotating block of the connecting plate and the sliding clamping groove of the back frame can be separated in a sliding mode after 180-degree rotation, so the structure of the invention is more stable.
3. According to the invention, the inserting hole is formed in one side of the outer part of the sliding clamping groove of the back frame, the connecting groove is formed in one side of the sliding rotating block of the connecting plate, the outer end of the telescopic column extends to the outer side of the connecting groove and abuts against the other side of the sliding clamping groove of the back frame, so that the inserting hole in the back frame and the telescopic column in the connecting plate are distributed on two sides, and the same-side correspondence is realized when the connecting plate rotates, and the connection is realized.
Drawings
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic sectional structure view of the back frame.
Fig. 3 is a schematic structural view of the sliding block just inserted into the sliding slot of the back frame.
Fig. 4 is a schematic structural view of the sliding rotary block rotating inside the lower end of the sliding slot of the back frame.
Fig. 5 is a schematic structural view of the sliding rotary block rotating 180 degrees inside the lower end of the sliding slot of the back frame.
FIG. 6 is a schematic side view of the connecting rod and the back plate.
FIG. 7 is a schematic side view of the connecting rod and the back plate rotated 180 in FIG. 6.
Fig. 8 is an enlarged structural diagram of a in fig. 6.
Fig. 9 is an enlarged structural diagram of B in fig. 7.
Fig. 10 is a schematic side view of the sliding block just inserted into the slot of the back frame.
Fig. 11 is a schematic side view of the sliding slot of the sliding block and the back frame after 180 rotations.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 11, a respirator comprises an oxygen bottle 1, a back frame 2, a vent pipe 4, a back belt 3 and a rotary buckle structure 5. Two ends of the inner side of the back frame 2 are respectively provided with a back belt 3; the upper end of the oxygen cylinder 1 is connected with a breather pipe 4; the rotary buckle structure 5 comprises a connecting plate 51, a sliding rotary block 52, a locking lever 55, a telescopic column 54, an extrusion spring 53 and a positioning piece 56; the connecting plate 51 is arranged at one side of the oxygen cylinder 1; a sliding rotating block 52 is arranged in the middle of the outer side surface of the connecting plate 51; the upper end of the sliding rotary block 52 is provided with a locking lever 55; a sliding clamping groove 21 is formed in the middle of the outer side of the back frame 2 from top to bottom; the upper end of the sliding clamping groove 21 extends to the edge of the upper end of the back frame, and the lower end of the sliding clamping groove extends to the lower part of the middle part of the back frame; an inserting hole 23 is formed in one side of the outer part of the sliding clamping groove 21 of the back frame 2; a lock catch groove 22 is communicated with the bottom and one side of the lower part inside the sliding clamping groove 21; the bottom of the locking slot 22 is provided with a positioning piece 56; the sliding rotary block 52 outside the connecting plate 51 is inserted in a sliding way from the upper end of the sliding slot 21 of the back frame 2, and the sliding rotary block 52 is inserted in the lower end of the sliding slot 21 in a sliding way; a connecting groove 511 is arranged on one side of the connecting plate 51 close to the sliding rotating block 52; the connecting groove 511 is internally provided with an extrusion spring 53; a telescopic column 54 is inserted and connected into the connecting groove 511; the extrusion spring 53 elastically extrudes the inner end of the telescopic column 54; the outer end of the telescopic column 54 extends to the outer side of the connecting groove 511 and abuts against the other side of the outer part of the sliding clamping groove 21 of the back frame 2; the sliding rotating block 52 rotates 180 degrees in the lower end of the sliding clamping groove 21 and drives the connecting plate 51 and the locking lever 55 to rotate; the connecting plate 51 drives the telescopic column 54 to abut against and rotatably slide to one side of the outside of the sliding slot 21 of the back frame 2 from the other side of the outside of the sliding slot 21 of the back frame 2, and the telescopic column 54 is pushed by the extrusion of the extrusion spring 53 to be inserted into the insertion hole 23 clamped and connected to one side of the outside of the sliding slot of the back frame 2; the latching lever 55 is rotated downward from the upper end of the sliding rotary block 52, passes through the latching groove 22, and is latched to the positioning member 56 at the bottom of the latching groove 22.
As shown in fig. 1 to 11, it is further preferable that the outer end of the connecting groove 511 of the connecting plate 51 is provided with an annular limiting tooth 512; the outer side of the periphery of the middle of the telescopic column 54 is provided with an annular telescopic groove 541; the telescopic column 54 is slidably clamped on the annular limiting tooth 512 of the connecting groove 511 through an annular telescopic groove 541 at the outer side of the periphery of the middle. Further, the depth of the locking groove 22 is smaller than that of the sliding locking groove 21, so that the sliding rotation block 52 does not fall into the locking groove 22 as shown in fig. 10. Further, the sections of the sliding clamping groove 21 and the sliding rotating block 52 are both in a T-shaped structure; the sliding rotary block 52 is a stepped cylinder, and may have a semi-arc structure for adapting to the lower end of the sliding slot 21. Further, the locking lever 55 is in an L-shaped structure; the positioning piece 56 is in an inverted U-shaped structure; the outer end of the latch lever 55 is rotatably latched to the positioning member 56. Further, a wear-resistant coating 541 is arranged on the outer end face of the telescopic column 54; the wear-resistant coating 541 is made of a polytetrafluoroethylene material. Further, the device also comprises an isolating layer 6; the isolation layer 6 is arranged in the middle of the inner side of the back frame 2; the isolation layer 6 is made of elastic soft materials. The back frame 2 is in a U-shaped structure; the back frame 2 is made of plastic materials.
The connecting mode of the traditional oxygen cylinder 1 and the back frame 2 is changed, and the connecting stability and the mounting efficiency are improved; the invention has realized the triple connection structure, guarantee the stability, the invention has set up the slip neck 21 from top to bottom in the middle of outside of the back frame 2 at first, mount the slip rotary block 52 in the middle of the lateral surface of the connecting plate 51, slip the rotary block 52 from the slip neck 21 upper end of the back frame 2 and slip and insert through the outside of the connecting plate 51, and the slip rotary block 52 slips and inserts the lower end of the slip neck 21, so has formed the first heavy slip to clamp; then the sliding rotating block 52 rotates 180 degrees in the lower end of the sliding clamping groove 21 and drives the connecting plate 51 and the oxygen cylinder 1 to rotate, the oxygen cylinder 1 is inverted before rotating, the connecting plate 51 drives the telescopic column 54 to abut against and rotatably slide to one side of the sliding clamping groove 21 of the back frame 2 from the other side of the sliding clamping groove 21 of the back frame 2, and meanwhile, the lock catch rod 55 rotates downwards from the upper end of the sliding rotating block 52 to reach the bottom of the lock catch groove 22, so that the second-fold rotation direction change is formed; finally, the telescopic column 54 is pushed by the extrusion of the extrusion spring 53 to be inserted into and clamped in the insertion hole 23 at one side of the sliding clamping groove 21 of the back frame 2, and meanwhile, the outer end of the locking rod 55 is locked and connected on the positioning piece 56 at the bottom of the locking groove 22, so that a third-fold insertion clamping positioning is formed, and the receiving stability of the oxygen cylinder 1 and the back frame 2 is greatly improved; the whole installation process is a sliding and rotating process, the installation is fast and convenient, and as can be seen from the attached drawings 6 and 7, the oxygen cylinder 1 is firstly inserted into the back plate 2 in an inverted mode, and then is clamped and locked after being rotated by 180 degrees; the process of the entire rotation can be understood from fig. 3 to 5.
The invention carries out space transformation on the locking modes of two forms by a 180-degree rotation mode, firstly, the sliding connection of the sliding rotation block 52 of the connecting plate 51 and the sliding clamping groove 21 of the back frame 2 occurs before 180-degree rotation, the splicing of the telescopic column 54 and the splicing hole 23 and the locking of the locking rod 55 and the positioning piece 56 occur after 180-degree rotation, and the front and the back connecting forms are separated by rotation, thus greatly increasing the deformation resistance of the structure, even if the splicing of the telescopic column 54 and the splicing hole 23 and the locking of the locking rod 55 and the positioning piece 56 occur, the sliding rotation block 52 of the connecting plate 51 and the sliding clamping groove 21 of the back frame 2 can be separated by 180-degree rotation, and the structure of the invention is more stable.
According to the invention, the inserting hole 23 is arranged on one side of the outer part of the sliding clamping groove 21 of the back frame 2, the connecting groove 511 is arranged on one side of the sliding rotating block 52 of the connecting plate 51, the outer end of the telescopic column 54 extends to the outer side of the connecting groove 511 and abuts against the other side of the sliding clamping groove 21 of the back frame 2, so that the inserting hole 23 on the back frame 2 and the telescopic column 54 on the connecting plate 51 are distributed on two sides, and the same-side correspondence is realized when the connecting plate 51 rotates, and the connection is realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A respirator is characterized by comprising an oxygen bottle, a back frame, a breather pipe, a back belt and a rotary buckle structure; two ends of the inner side of the back frame are respectively provided with a back belt; the upper end of the oxygen cylinder is connected with a breather pipe; the rotary buckle structure comprises a connecting plate, a sliding rotary block, a lock catch rod, a telescopic column, an extrusion spring and a positioning piece; the connecting plate is arranged on one side of the oxygen cylinder; a sliding rotating block is arranged in the middle of the outer side surface of the connecting plate; the upper end of the sliding rotating block is provided with a lock catch rod; a sliding clamping groove is formed in the middle of the outer side of the back frame from top to bottom; the upper end of the sliding clamping groove extends to the edge of the upper end of the back frame, and the lower end of the sliding clamping groove extends to the lower part of the middle part of the back frame; one side of the outer part of the sliding clamping groove of the back frame is provided with an inserting hole; a lock catch groove is communicated with the bottom and one side of the lower part inside the sliding clamp groove; the bottom of the lock catch groove is provided with a positioning piece; the sliding rotating block on the outer side of the connecting plate is inserted into the sliding clamping groove of the back frame in a sliding mode, and the sliding rotating block is inserted into the lower end of the sliding clamping groove in a sliding mode; one side of the connecting plate, which is close to the sliding rotating block, is provided with a connecting groove; an extrusion spring is arranged in the connecting groove; a telescopic column is inserted and connected into the connecting groove; the extrusion spring elastically extrudes the inner end of the telescopic column; the outer end of the telescopic column extends to the outer side of the connecting groove and is abutted against the other side of the outer part of the sliding clamping groove of the back frame; the sliding rotating block rotates 180 degrees in the lower end of the sliding clamping groove and drives the connecting plate and the locking rod to rotate; the connecting plate drives the telescopic column to abut against the other side of the outside of the sliding clamping groove of the back frame and rotationally slide to one side of the outside of the sliding clamping groove of the back frame, and the telescopic column is pushed and inserted into the inserting hole clamped in one side of the outside of the sliding clamping groove of the back frame through the extrusion of the extrusion spring; the lock catch rod rotates downwards from the upper end of the sliding rotating block and is connected to the positioning piece at the bottom of the lock catch groove in a lock catch mode after passing through the lock catch groove.
2. The respirator as claimed in claim 1, wherein the outer end of the connecting groove of the connecting plate is provided with an annular limiting tooth; the outer sides of the periphery of the middle of the telescopic column are provided with annular telescopic grooves; the telescopic column is in sliding clamping connection with the annular limiting teeth of the connecting groove through the annular telescopic groove on the outer side of the periphery of the middle.
3. The respirator of claim 1, wherein the depth of the locking slot is less than the depth of the sliding slot.
4. The respirator of claim 1, wherein the cross sections of the sliding clamping groove and the sliding rotating block are both T-shaped structures; the sliding rotating block is a step-shaped cylinder.
5. The respirator of claim 1, wherein the latch bar is an L-shaped structure; the positioning piece is of an inverted U-shaped structure; the outer end of the lock catch rod is rotationally locked on the positioning piece.
6. The respirator of claim 1, wherein the outer end face of the telescoping post is provided with a wear resistant coating; the wear-resistant coating is made of polytetrafluoroethylene materials.
7. The respirator of claim 1, further comprising a barrier layer; the isolation layer is arranged in the middle of the inner side of the back frame; the isolating layer is made of elastic soft materials.
8. The respirator of claim 1, wherein the back frame is U-shaped; the back frame is made of plastic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911352166.9A CN111167030B (en) | 2019-12-25 | 2019-12-25 | Breathing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911352166.9A CN111167030B (en) | 2019-12-25 | 2019-12-25 | Breathing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111167030A CN111167030A (en) | 2020-05-19 |
| CN111167030B true CN111167030B (en) | 2021-04-02 |
Family
ID=70620039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911352166.9A Active CN111167030B (en) | 2019-12-25 | 2019-12-25 | Breathing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111167030B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1475015A (en) * | 1966-02-18 | 1967-03-31 | Commissariat Energie Atomique | Exhalation device for respiratory masks |
| US8006877B2 (en) * | 2007-04-18 | 2011-08-30 | Sperian Respiratory Protection Usa, Llc | Backpack for self contained breathing apparatus |
| US7963597B2 (en) * | 2007-08-17 | 2011-06-21 | H.O. Bostrom Company Inc. | Automatic locking SCBA mounting bracket assembly |
| US9220333B2 (en) * | 2013-11-27 | 2015-12-29 | Msa Technology, Llc | Adjustable lumbar support for mounting on a backpack and backpack having the same |
| CN204219637U (en) * | 2014-11-11 | 2015-03-25 | 梅思安(苏州)安全设备研发有限公司 | Positive-pressure air respirator backboard |
| WO2017084069A1 (en) * | 2015-11-19 | 2017-05-26 | Honeywell International Inc. | Quick coupling for self-contained breathing apparatus harness and backplate |
| CN208065592U (en) * | 2017-12-29 | 2018-11-09 | 中国石油天然气股份有限公司 | A kind of positive-pressure air respirator case |
| CN208785622U (en) * | 2018-08-19 | 2019-04-26 | 上海方展消防科技有限公司 | A kind of positive-pressure type firefighting air respirator |
| CN209361695U (en) * | 2018-10-15 | 2019-09-10 | 天津滨海新区泽安泰消防技术有限公司 | A kind of fire-fighting loss of weight Backpack device |
| CN209645679U (en) * | 2019-01-18 | 2019-11-19 | 泰州市华通消防装备厂有限公司 | A kind of vehicle-mounted breather for fire fighting shelf |
| CN110420404B (en) * | 2019-07-23 | 2021-11-09 | 浙江恒泰安全设备有限公司 | Oxygen respirator with ventilation structure |
-
2019
- 2019-12-25 CN CN201911352166.9A patent/CN111167030B/en active Active
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| CN111167030A (en) | 2020-05-19 |
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