CN112295127B - Anti-skid fixing mode and anti-skid method for air respirator back plate device - Google Patents
Anti-skid fixing mode and anti-skid method for air respirator back plate device Download PDFInfo
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- CN112295127B CN112295127B CN201910695330.XA CN201910695330A CN112295127B CN 112295127 B CN112295127 B CN 112295127B CN 201910695330 A CN201910695330 A CN 201910695330A CN 112295127 B CN112295127 B CN 112295127B
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- 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
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Abstract
The invention discloses an anti-skid fixing mode and an anti-skid method for an air respirator back plate device, wherein the anti-skid fixing mode for the air respirator back plate device comprises the following steps: the movable backboard is movably connected with the main backboard; one surface of the main back plate, which is contacted with the movable back plate, is provided with a U-shaped clamping groove; a fastening device is arranged between the main back plate and the movable back plate; the fastening device adopts a screw fixing mode and an anti-skidding mode; the anti-slip mode comprises a tooth socket limiting mode and a bolt limiting mode. The invention discloses an anti-skid fixing mode for a back plate device of an air respirator, which is provided with two anti-skid modes: spacing mode of tooth's socket and the spacing mode of bolt, and then carry out the position to main backplate on the backplate device and activity backplate and prescribe a limit to, and then can not appear because of the screw fixation tightly that the size that forms between main backplate and the activity backplate changes.
Description
Technical Field
The invention relates to a back plate device of an air respirator, in particular to an anti-skidding fixing mode for the back plate device of the air respirator, and belongs to the field of security protection.
Background
The respirator is a self-sufficient open type air respirator, which is widely applied to departments such as fire control, chemical engineering, ships, petroleum, smelting, warehouses, laboratories, mines and the like, and is used for fire extinguishment, rescue and relief work and rescue work of firemen or rescue and rescue personnel under various environments such as dense smoke, toxic gas, steam or oxygen deficiency and the like.
During high-risk activities such as fire rescue, emergency rescue, industrial places and the like, operating personnel need to use the air respirator to ensure the safety during operation, and when the operating personnel enter the site, the carried air respirator is usually carried on the back plate device.
However, when the conventional back plate expansion device is fixed by using screws, the waist holes have a predetermined length, and when the screws inserted into the waist holes for fixing are not tightened, the main back plate and the movable back plate in the expansion device of the back plate device easily slide along the waist holes, so that the size formed between the main back plate and the movable back plate is changed.
Disclosure of Invention
The purpose of the invention is as follows: the utility model provides an air respirator backplate is antiskid fixed mode for device to solve the above-mentioned problem that prior art exists.
The technical scheme is as follows: an air respirator back plate device is with anti-skidding fixed mode, includes:
the movable backboard is movably connected with the main backboard; one surface of the main back plate, which is contacted with the movable back plate, is provided with a U-shaped clamping groove; a fastening device is arranged between the main back plate and the movable back plate; the fastening device adopts a screw fixing mode and an anti-skidding mode; the anti-slip mode comprises a tooth socket limiting mode and a bolt limiting mode.
In further embodiment, the screw fixation mode includes at the main backplate and the criss-cross overlapping region of activity backplate, adjusts fixedly with a set of screw combination nut, it has the screw fixation hole to open on the main backplate, it has the waist hole with the screw fixation hole adaptation to open on the activity backplate, and it has the waist hole with the screw fixation hole adaptation to open screw fixation hole on the main backplate and open on the activity backplate, mainly can need not to take out the screw when removing the activity backplate, only need relax the screw can.
In a further embodiment, the screw fixing manner may further include a waist hole formed in the main backplate, and a screw fixing hole adapted to the waist hole formed in the movable backplate, and the waist hole is formed in the main backplate so as to drive the screw to slide along the range of the waist hole when the movable backplate is moved, thereby achieving a cleaning effect to a certain extent.
In a further embodiment, the tooth space limiting mode comprises that a regular and serrated transverse concave tooth space and a serrated convex tooth space are arranged on the contact surface of the main back plate and the movable back plate, the sliding direction of the movable back plate is perpendicular to the sliding direction of the movable back plate, the tooth spaces of the main back plate and the movable back plate are matched, the regular and serrated concave tooth spaces and the serrated convex tooth spaces are arranged to be perpendicular to the sliding direction of the movable back plate, the regular and serrated concave tooth spaces and the serrated convex tooth spaces are arranged to be transverse, and the limiting effect on the movable back plate can be more effectively achieved.
In a further embodiment, the bolt limiting mode comprises that a plurality of uniformly distributed limiting raised ribs or limiting grooves are designed on the back plate with the waist hole and on the other surface of the contact surface of the two back plates, and the limiting effect of the main back plate and the movable back plate can be realized by designing the plurality of uniformly distributed limiting raised ribs or limiting grooves.
In a further embodiment, the interval that forms between every two sets of spacing protruding ribs in the even spacing protruding rib of a plurality of distributions is not less than the relative two angular distance of nut, with the interval that forms between every two sets of spacing protruding ribs in the spacing protruding rib not less than the relative two angular distance of nut, can realize that the longest distance of nut is less than the distance between the protruding rib, and then can realize using protruding rib to carry out spacingly to the nut, and then accomplish and prescribe a limit to the size that forms between main backplate and the activity backplate.
In a further embodiment, the contour of the inner wall of the limiting groove is not smaller than the contour of the nut, and the contour of the inner wall of the limiting groove is designed to be not smaller than the contour of the nut, so that the nut can be completely embedded in the limiting groove, and the size formed between the main back plate and the movable back plate is further limited.
An anti-slip method for an air respirator back plate device in an anti-slip fixing manner, comprising:
s1: fastening screws penetrate through the fixing holes and the waist holes, screws and nuts are screwed by hands or tools for fixing, the screws or the nuts are loosened, the movable back plate is adjusted to a required position, and then the screws or the nuts are screwed to finish adjustment;
s2: after the screw and the nut are screwed, in order to prevent the main back plate and the movable back plate from sliding, two groups of anti-sliding modes are designed, a plurality of limiting raised ribs or grooves which are uniformly distributed are designed on the back plate with the waist hole and on the other side of the contact surface of the two back plates, the limiting grooves and the raised ribs are arranged on two sides of the waist hole, and the limiting grooves are matched with the nut;
s3: the contact surfaces of the two back plates are distributed with a regular and zigzag transverse concave tooth groove and a convex tooth groove which are vertical to the sliding direction, and the tooth grooves of the main back plate and the movable back plate are mutually matched; due to the arrangement of the matched concave tooth grooves and the convex tooth grooves which are regular and zigzag, when the concave tooth grooves and the convex tooth grooves are matched, the contact between the main back plate and the movable back plate 1 is further completed due to the interaction force between the concave tooth grooves and the convex tooth grooves; under the two sets of anti-skidding modes, even if the screw nuts are not screwed too tightly, the main back plate and the movable back plate can not slide when in use.
Has the advantages that: the invention discloses an anti-skid fixing mode for a back plate device of an air respirator, which is provided with two anti-skid modes: spacing mode of tooth's socket and the spacing mode of bolt, and then carry out the position to main backplate on the backplate device and activity backplate and prescribe a limit to, and then can not appear because of the screw fixation tightly that the size that forms between main backplate and the activity backplate changes.
Drawings
Fig. 1 is a schematic view of the state of the expansion plate of the present invention.
Fig. 2 is a first and second schematic structural diagrams of the present invention.
Fig. 3 is a schematic structural diagram of a third and a fourth embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a U-shaped card slot of the present invention.
Fig. 5 is a schematic view of the second and fourth embodiments of the present invention.
Fig. 6 is a schematic view of the anti-slip modes of the second and fourth embodiments of the present invention.
Fig. 7 is a schematic view of the anti-slip mode of the first and third embodiments of the present invention.
The reference signs are: the movable back plate comprises a movable back plate 1, a convex tooth groove 101, a main back plate 2, a concave tooth groove 201, a screw fixing hole 3, a waist hole 4, a limiting groove 401 and a convex rib 402.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
Through research and analysis of the applicant, the reason for the problem (the main back plate and the movable back plate slide and further change the size formed between the main back plate and the movable back plate) is that when the conventional back plate telescopic device is fixed by using screws, the waist hole has a preset length, and when the screws inserted into the waist hole for fixing are not screwed down, the main back plate and the movable back plate in the back plate telescopic device easily slide along the waist hole, so that the size formed between the main back plate and the movable back plate is changed, and the invention discloses an anti-skidding fixing mode for the back plate device of the air respirator, which is provided with two anti-skidding modes: spacing mode of tooth's socket and the spacing mode of bolt, and then carry out the position to main backplate on the backplate device and activity backplate and prescribe a limit to, and then can not appear because of the screw fixation tightly that the size that forms between main backplate and the activity backplate changes.
An air respirator back plate device is with anti-skidding fixed mode, includes: the movable back plate comprises a movable back plate 1, a convex tooth groove 101, a main back plate 2, a concave tooth groove 201, a screw fixing hole 3, a waist hole 4, a limiting groove 401 and a convex rib 402.
The main backboard 2 is movably connected with the movable backboard 1, the main backboard 2 is connected with the movable backboard 1 through a U-shaped clamping groove, a fastening device is arranged between the main backboard 2 and the movable backboard 1, and the fastening device adopts a screw fixing mode and an anti-skidding mode; the antiskid mode comprises a tooth socket limiting mode and a bolt limiting mode, and the A, B, C attached drawing in fig. 1 is a schematic view of the working state of the backboard device.
Spacing that forms between every two sets of spacing protruding ribs 402 among a plurality of spacing protruding ribs 402 that distribute evenly is not less than the relative dihedral distance of nut, spacing that forms between every two sets of spacing protruding ribs 402 among the spacing protruding ribs 402 is not less than the relative dihedral distance of nut, the longest distance that can realize the nut is less than the distance between the protruding ribs 402, and then can realize using protruding ribs 402 to carry out spacing to the nut, and then accomplish and prescribe a limit to the size that forms between main backplate 2 and the activity backplate 1.
The contour of the inner wall of the limiting groove 401 is not smaller than the contour of the nut, the contour of the inner wall of the limiting groove 401 is designed to be not smaller than the contour of the nut, the nut can be completely embedded in the limiting groove 401, and therefore the size formed between the main back plate 2 and the movable back plate 1 is limited.
The first embodiment is as follows: the screw fixation mode includes at main backplate 2 and the 1 criss-cross overlap region of activity backplate, adjusts fixedly with a set of screw combination nut, it has screw fixed orifices 3 to open on main backplate 2, it has the waist hole 4 with 3 adaptations of screw fixed orifices to open on activity backplate 1, and it has the waist hole 4 with 3 adaptations of screw fixed orifices to open screw fixed orifices 3 on main backplate 2 and open on activity backplate 1, mainly can need not to take out the screw when removing activity backplate 1, only need relax the screw can.
The anti-slip mode comprises that a regular and saw-toothed transverse concave tooth groove 201 and a convex tooth groove 101 which are vertical to the sliding direction of the movable back plate 1 are arranged on the contact surface of the main back plate 2 and the movable back plate 1, the main back plate 2 is matched with the tooth grooves of the movable back plate 1, the regular sawtooth-shaped concave tooth groove 201 and the convex tooth groove 101 are arranged to be vertical to the sliding direction of the movable back plate 1, and the regular sawtooth-shaped concave tooth groove 201 and the convex tooth groove 101 are arranged to be transverse, the limiting effect on the movable back plate 1 can be more effectively carried out, because of the arrangement of the regular and saw-toothed concave tooth grooves 201 and convex tooth grooves 101, so that when the concave tooth groove 201 is matched with the convex tooth groove 101, the contact between the main backboard 2 and the movable backboard 1 is further completed due to the interaction force between the concave tooth groove 201 and the convex tooth groove 101, and the drawing A, B in fig. 2 is a drawing showing the telescopic state of the telescopic device of the embodiment.
The second embodiment is as follows: the screw fixation mode includes at main backplate 2 and the 1 criss-cross overlap region of activity backplate, adjusts fixedly with a set of screw combination nut, it has screw fixed orifices 3 to open on main backplate 2, it has the waist hole 4 with 3 adaptations of screw fixed orifices to open on activity backplate 1, and it has the waist hole 4 with 3 adaptations of screw fixed orifices to open screw fixed orifices 3 on main backplate 2 and open on activity backplate 1, mainly can need not to take out the screw when removing activity backplate 1, only need relax the screw can.
On the backboard with the waist hole 4, on the other side of the contact surface of the two backboards, a plurality of limiting protruding ribs 402 or limiting grooves 401 which are uniformly distributed are designed, the limiting grooves 401 and the protruding ribs 402 are arranged on the two sides of the waist hole 4, the limiting grooves 401 are matched with the nuts, the diameter of the nuts is larger than that of the screws, so that when the nuts are partially embedded in the limiting grooves 401, the movable backboard 1 and the main backboard 2 are limited, the movable backboard cannot be moved at the moment, the protruding parts of the nuts are arranged outside the waist hole 4 after the nuts are screwed, when the protruding ribs 402 are abutted to the protruding parts of the nuts, the movable backboard 1 and the main backboard 2 are limited at the moment, the movable backboard cannot be moved at the moment, and the A, B in fig. 2 is a telescopic state diagram of the telescopic device of the embodiment.
The third concrete implementation mode: the screw fixing mode further comprises that a waist hole 4 is formed in the main back plate 2, the movable back plate 1 is provided with a screw fixing hole 3 matched with the waist hole 4, and the waist hole 4 is formed in the main back plate 2 and is assembled so as to drive screws to slide along the range of the waist hole 4 when the movable back plate 1 is moved, so that the cleaning effect is caused to a certain extent.
The screw fixing mode also comprises an anti-skidding mode; the antiskid mode comprises that a regular and serrated transverse concave tooth groove 201 and a serrated convex tooth groove 101 which are perpendicular to the sliding direction of the movable back plate 1 are arranged on the contact surface of the main back plate 2 and the movable back plate 1, the tooth grooves of the main back plate 2 and the movable back plate 1 are matched, the regular and serrated concave tooth groove 201 and the serrated convex tooth groove 101 are perpendicular to the sliding direction of the movable back plate 1, the regular and serrated concave tooth groove 201 and the serrated convex tooth groove 101 are arranged to be transverse, the limiting effect on the movable back plate 1 can be more effectively carried out, and the A, B attached drawing in fig. 3 is a telescopic state diagram of the telescopic device in the embodiment.
The fourth concrete implementation mode: the screw fixing mode further comprises that a waist hole 4 is formed in the main back plate 2, the movable back plate 1 is provided with a screw fixing hole 3 matched with the waist hole 4, and the waist hole 4 is formed in the main back plate 2 and is assembled so as to drive screws to slide along the range of the waist hole 4 when the movable back plate 1 is moved, so that the cleaning effect is caused to a certain extent.
The antiskid mode also comprises that a plurality of evenly-distributed limiting raised ribs 402 or limiting grooves 401 are designed on the back plates with the waist holes 4 and on the other sides of the contact surfaces of the two back plates, the limiting grooves 401 and the raised ribs 402 are arranged on the two sides of the waist holes 4, the limiting grooves 401 are matched with the nuts, and the diameters of the nuts are larger than those of the screws, so that when the nuts are partially embedded in the limiting grooves 401, the movable back plate 1 and the main back plate 2 are limited and cannot move at the moment, when the raised ribs 402 are partially abutted to the nuts, the movable back plate 1 and the main back plate 2 are limited and cannot move at the moment, and the A, B drawing in fig. 3 is a telescopic state diagram of the telescopic device of the embodiment.
Description of the working principle: fastening screws penetrate through the fixing holes and the waist holes 4, screws or nuts of the screws are screwed by hands or tools for fixing, the screws or the nuts are loosened, the movable back plate 1 is adjusted to a required position, and then the screws or the nuts are screwed to finish adjustment; after screw and nut were screwed up, in order to prevent that main backplate 2 and activity backplate 1 from taking place to slide, design two sets of anti-skidding modes:
(1) on the back plate with the waist hole 4, the other sides of the contact surfaces of the two back plates are designed with a plurality of evenly distributed limiting convex ribs 402 or grooves; the limiting grooves 401 and the protruding ribs 402 are arranged on two sides of the waist hole 4, the limiting grooves 401 are matched with the nut, the diameter of the nut is larger than that of the screw, when the nut is partially embedded in the limiting grooves 401, the movable back plate 1 and the main back plate 2 are limited, the movable back plate cannot move at the moment, the protruding part of the nut is arranged on the outer side of the waist hole 4 after the nut is screwed down, when the protruding ribs 402 abut against the protruding part of the nut, the movable back plate 1 and the main back plate 2 are limited at the moment, and the movable back plate cannot move at the moment;
(2) at the contact surface of two backplates, the zigzag horizontal concave tooth groove 201 and convex tooth groove 101 which are vertical to the sliding direction and have regular distribution design, the tooth grooves of the main backplate 2 and the movable backplate 1 are mutually matched, and due to the mutual matching, the regular zigzag concave tooth groove 201 and the convex tooth groove 101 are arranged, so that when the concave tooth groove 201 and the convex tooth groove 101 are matched, the contact between the main backplate 2 and the movable backplate 1 is further completed due to the mutual acting force between the concave tooth groove 201 and the convex tooth groove 101.
Under the two sets of anti-skidding modes, even if the screw nuts are not screwed too tightly, the main back plate 2 and the movable back plate 1 cannot slide when in use.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the embodiments, and various equivalent changes can be made to the technical solution of the present invention within the technical idea of the present invention, and these equivalent changes are within the protection scope of the present invention.
Claims (2)
1. The utility model provides an air respirator backplate is fixed mode with antiskid, characterized by includes:
the movable backboard is movably connected with the main backboard; one surface of the main back plate, which is contacted with the movable back plate, is provided with a U-shaped clamping groove; a fastening device is arranged between the main back plate and the movable back plate; the fastening device adopts a screw fixing mode and an anti-skidding mode; the anti-slip mode comprises a tooth socket limiting mode and a bolt limiting mode;
the screw fixing mode comprises that a main back plate is provided with a screw fixing hole, and a movable back plate is provided with a waist hole matched with the screw fixing hole;
or, the screw fixing mode is that a waist hole is formed on the main back plate, and a screw fixing hole matched with the waist hole is formed on the movable back plate;
the tooth socket limiting mode comprises that a regular and sawtooth-shaped transverse concave tooth socket and a convex tooth socket which are perpendicular to the sliding direction of the movable back plate are arranged on the contact surface of the main back plate and the movable back plate, and the tooth sockets of the main back plate and the movable back plate are matched;
the bolt limiting mode comprises the steps that a plurality of uniformly distributed limiting convex ribs or limiting grooves are designed on the back plate with the waist holes and on the other surface of the contact surface of the two back plates;
the distance formed between every two groups of the limit raised ribs in the plurality of evenly distributed limit raised ribs is not less than the relative two-angle distance of the nuts;
the inner wall profile of the limiting groove is not smaller than the outer profile of the nut.
2. An anti-skid method of an anti-skid fixing mode for a back plate device of an air respirator is characterized by comprising the following steps:
s1: adjusting and fixing the main back plate and the movable back plate in the crossed overlapped area by using a group of screws and nuts, penetrating fastening screws through the fixing holes and the waist holes, screwing the screws and the nuts by hands or tools for fixing, loosening the screws or the nuts, adjusting the movable back plate to a required position, and then screwing the screws or the nuts to finish adjustment;
s2: after the screw and the nut are screwed, in order to prevent the main back plate and the movable back plate from sliding, two groups of anti-sliding modes are designed, a plurality of limiting raised ribs or grooves which are uniformly distributed are designed on the back plate with the waist hole and on the other side of the contact surface of the two back plates, the limiting grooves and the raised ribs are arranged on two sides of the waist hole, and the limiting grooves are matched with the nut;
s3: the contact surfaces of the two back plates are distributed with a regular and zigzag transverse concave tooth groove and a convex tooth groove which are vertical to the sliding direction, and the tooth grooves of the main back plate and the movable back plate are mutually matched; due to the arrangement of the matched concave tooth grooves and the convex tooth grooves which are regular and zigzag, when the concave tooth grooves and the convex tooth grooves are matched, the contact between the main back plate and the movable back plate 1 is further completed due to the interaction force between the concave tooth grooves and the convex tooth grooves; under the two groups of anti-skidding modes, even if the screw nuts are not screwed too tightly, the main back plate and the movable back plate can not slide when in use.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695330.XA CN112295127B (en) | 2019-07-30 | 2019-07-30 | Anti-skid fixing mode and anti-skid method for air respirator back plate device |
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| CN201910695330.XA CN112295127B (en) | 2019-07-30 | 2019-07-30 | Anti-skid fixing mode and anti-skid method for air respirator back plate device |
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| CN112295127A CN112295127A (en) | 2021-02-02 |
| CN112295127B true CN112295127B (en) | 2022-06-14 |
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| CN201910695330.XA Active CN112295127B (en) | 2019-07-30 | 2019-07-30 | Anti-skid fixing mode and anti-skid method for air respirator back plate device |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2845595C (en) * | 2011-08-16 | 2018-10-23 | Meyer Sound Laboratories, Incorporated | Loudspeaker rigging system having upwardly extending connecting links |
| CN202942557U (en) * | 2012-11-09 | 2013-05-22 | 上海宝亚安全装备有限公司 | Rear plate of air breathing apparatus |
| CN105423056B (en) * | 2015-12-21 | 2017-10-24 | 宁波恒元精工管阀科技有限公司 | Saddle electric smelting end cap |
| CN205759178U (en) * | 2016-05-30 | 2016-12-07 | 扬州市虹安消防装备有限公司 | A kind of backboard on air respiratorresuscitator |
| CN206026894U (en) * | 2016-08-30 | 2017-03-22 | 宁波保众应急科技有限公司 | Scalable backplate and respirator equipment |
| CN107190940B (en) * | 2017-05-17 | 2019-03-01 | 深圳市维业装饰集团股份有限公司 | Marble slab dry-hanging component |
| CN206964901U (en) * | 2017-06-22 | 2018-02-06 | 东台市江海救生消防设备有限公司 | Positive-pressure air respirator back board module |
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