CN109061604B - Explosion-proof shell of laser range finder - Google Patents
Explosion-proof shell of laser range finder Download PDFInfo
- Publication number
- CN109061604B CN109061604B CN201810992955.8A CN201810992955A CN109061604B CN 109061604 B CN109061604 B CN 109061604B CN 201810992955 A CN201810992955 A CN 201810992955A CN 109061604 B CN109061604 B CN 109061604B
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- outer shell
- shell
- laser range
- range finder
- inner shell
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
- G01S7/4813—Housing arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/02—Details
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses an explosion-proof shell of a laser range finder, which comprises an outer shell, an outer shell cover plate, an inner shell, a transparent part and a cable leading-out device, wherein the outer shell is provided with a plurality of through holes; the outer shell cover plate is fixed at the head end of the outer shell, an observation window and a mounting groove opposite to the observation window are formed in the outer shell cover plate, the transparent piece is arranged in the mounting groove, the inner shell is fixed in the outer shell and used for assembling the laser range finder, and the transparent piece is tightly propped in the mounting groove by the head end of the inner shell; the cable leading-out device is arranged at the tail end of the outer shell, and a cable on the laser range finder is led out through the cable leading-out device; the explosion-proof shell of the laser range finder provided by the invention can isolate the laser range finder from the actual working environment so as to prevent the laser range finder from becoming a potential dangerous ignition source when the actual working environment becomes a flammable and explosive environment.
Description
Technical Field
The invention relates to the technical field of explosion-proof electricity, in particular to an explosion-proof shell of a laser range finder.
Background
For the occasions with severe environmental conditions such as the sea, coal mines and the like, the corrosion is high, the common laser range finders are made of hard plastic materials, can only prevent water and dust, cannot withstand corrosion and can not realize explosion suppression, faults are easy to occur, and the common laser range finders are easy to become ignition sources when exploded, so that a series of explosions are caused, and huge losses are caused.
Therefore, it is a technical problem to be solved by those skilled in the art to provide an explosion-proof protection device for a laser range finder.
Disclosure of Invention
The invention aims to provide an explosion-proof shell of a laser range finder, which is used for solving the problems in the prior art, and adopts a mode of an explosion-proof cavity design to isolate the laser range finder from an actual working environment so as to prevent the laser range finder from becoming a potential dangerous ignition source when the actual working environment becomes a flammable and explosive environment.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an explosion-proof shell of a laser range finder, which comprises an outer shell, an outer shell cover plate, an inner shell, a transparent part and a cable leading-out device, wherein the outer shell is provided with a plurality of through holes; the outer shell cover plate is fixed at the head end of the outer shell, an observation window and a mounting groove opposite to the observation window are formed in the outer shell cover plate, the transparent piece is arranged in the mounting groove, the inner shell is fixed in the outer shell and used for assembling the laser range finder, and the transparent piece is tightly propped in the mounting groove by the head end of the inner shell; the cable leading-out device is arranged at the tail end of the outer shell, and a cable on the laser range finder is led out through the cable leading-out device.
Preferably, the outer shell is a cuboid shell, the outer shell cover plate is a rectangular plate, and the outer shell cover plate is fixedly connected with the outer shell through a plurality of outer ring screws.
Preferably, the transparent piece and the bottom and the side wall of the mounting groove are fixed by epoxy resin in a pouring way.
Preferably, a rubber gasket is further arranged between the inner shell and the transparent part, and the inner shell tightly pushes the transparent part through the rubber gasket.
Preferably, the inner shell is a rectangular tube with openings at the head and the tail, the inner shell is connected with the outer shell cover plate through a plurality of inner ring screws through a connecting ring integrally arranged on the periphery of the inner shell, and the connecting ring is in clearance fit with the front cover plate.
Preferably, a rectangular through hole is formed in the bottom plate of the inner shell from the tail end to the head end, and the cable penetrates through the rectangular through hole.
Preferably, the inner shell is vertically cut with a cutting slit from the tail end of the bottom plate to two side walls of the inner shell, so that part of the shell at the tail end of the inner shell can clamp the laser range finder inwards through a pre-tightening screw.
Preferably, the cable leading-out device comprises a filler pipe, a hexagon nut and a baffle, the head end of the filler pipe is in threaded connection with the outer shell, the cable is led out from the filler pipe, and the filler pipe and the cable are sealed by glue pouring; the separation blade set up in the filler tube tail end for the shutoff sealed glue in the filler tube, hexagon nut with the filler tube tail end outer wall threaded connection is used for fixing the separation blade.
Preferably, the outer shell cover plate and the cable leading-out device are all made of stainless steel, and the transparent piece is made of toughened glass.
Preferably, a nameplate is further arranged on the side wall of the tail end of the outer shell.
Compared with the prior art, the invention has the following beneficial technical effects:
the explosion-proof shell of the laser range finder provided by the invention adopts an explosion-proof cavity design mode to isolate the laser range finder from the actual working environment, when the actual working environment is changed into a flammable and explosive environment, the laser range finder cannot become a potential dangerous ignition source, and the explosion-proof shell conforms to the national explosion-proof standard, meets the explosion-proof standard of a dangerous area with the grade of 1, is suitable for explosive gas with the dangerous grade and the class of IIB, has the equipment protection grade of Gb, and has the highest surface temperature group of T4.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of an explosion-proof housing of a laser range finder according to the present invention;
FIG. 2 is a schematic structural view of the cover plate of the outer casing of the present invention;
FIG. 3 is a front view of the inner housing of the present invention;
FIG. 4 is a bottom view of the inner housing of the present invention;
FIG. 5 is a schematic view of the cable lead-out apparatus according to the present invention;
in the figure: 1-outer shell, 2-outer shell cover plate, 3-inner shell, 4-transparent piece, 5-cable leading-out device, 6-laser range finder, 7-cable, 8-observation window, 9-installation groove, 10-outer ring screw, 11-rubber gasket, 12-connection ring, 13-inner ring screw, 14-rectangular through hole, 15-pre-tightening screw, 16-cutting seam, 17-filling pipe, 18-hexagon nut, 19-baffle plate, 20-sealant, 21-shaft retainer ring and 22-nameplate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an explosion-proof shell of a laser range finder, which is used for solving the problems in the prior art.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The embodiment provides an explosion-proof shell of a laser range finder, which comprises an outer shell 1, an outer shell cover plate 2, an inner shell 3, a transparent piece 4 and a cable leading-out device 5, as shown in fig. 1; wherein, the outer shell 1, the outer shell cover plate 2, the inner shell 3 and the cable leading-out device 5 are made of stainless steel, and the transparent piece 4 is made of toughened glass; the shell body 1 is a cuboid shell, correspondingly, the shell body cover plate 2 is a rectangular plate, the shell body cover plate 2 is fixed at the head end of the shell body 1 through a plurality of outer ring screws 10, and therefore an explosion-proof cavity is formed, and the outside cannot be ignited even if the explosion is generated inside.
In this embodiment, as shown in fig. 2, an observation window 8 and a mounting groove 9 opposite to the observation window 8 are formed on the outer casing cover plate 2; the transparent piece 4 is arranged in the mounting groove 9 and is fixedly poured with the bottom and the side wall of the mounting groove 9 through epoxy resin, so that the transparent piece and the cover plate form an inseparable assembly, and the width of a bonding joint surface is 11 mm.
In the embodiment, the inner shell 3 is a rectangular tube with openings at the head and the tail, the inner shell 3 is connected with the outer shell cover plate 2 through a plurality of inner ring screws 13 by a connecting ring 12 integrally arranged on the periphery of the inner shell, so that the inner shell 3 is fixed inside the outer shell 1 and used for assembling the laser range finder 6, and the transparent piece 4 is tightly propped in the mounting groove 9 by the head end of the inner shell 3 through a rubber gasket 11;
in this embodiment, the connection ring 12 is disposed in clearance fit with the front cover plate, and the compression degree of the inner housing 3 can be adjusted by screwing in and out the inner ring screw 13.
In addition, as shown in fig. 3-4, a rectangular through hole 14 is formed on the bottom plate of the inner shell 3 from the tail end to the head end, and the cable 7 of the laser range finder 6 penetrates through the rectangular through hole 14; in order to clamp the laser range finder 6 and prevent the laser range finder from shaking in the inner shell 3, a cutting seam 16 is vertically linearly cut on the inner shell 3 from the tail end of the bottom plate to two side walls of the inner shell 3, and part of the shell at the tail end of the inner shell 3 can clamp the laser range finder 6 inwards through a pre-tightening screw 15.
In order to guarantee laser range finder's 6 heat dispersion, need leave certain distance between the inside laser range finder's 6 back wall of interior casing 3 in this embodiment and the shell body 1, specifically can set up to 10mm, be favorable to laser range finder's 6 heat dissipation.
In the embodiment, the thickness of the transparent piece 4 made of toughened glass is 8mm, so that the power of laser can be reduced, the situation that the laser power outside the shell is too high to become an ignition source is prevented, and the effective stroke of the laser range finder 6 can be ensured; in addition, the thinnest of the shell wall of the outer shell 1 is 10mm, and explosion-proof threaded holes can be drilled in any direction of the outer shell 1, so that the whole outer shell 1 can be fixed in any direction according to requirements.
In this embodiment, as shown in fig. 5, the cable leading-out device 5 includes a filler pipe 17, a hexagon nut 18 and a baffle 19, the head end of the filler pipe 17 is in threaded connection with the outer shell 1, the cable 7 is led out from the filler pipe 17, a sealant 20 is used for potting between the filler pipe 17 and the cable 7, 20% of the cross-sectional area inside the filler pipe 17 is filled with a filler, and the potting length is at least 20 mm; the blocking piece 19 is arranged at the tail end of the filler pipe 17 and used for blocking the sealant 20 in the filler pipe 17, and the hexagonal nut 18 is in threaded connection with the outer wall of the tail end of the filler pipe 17 and used for fixing the blocking piece 19. The diameter of the thread between the filler pipe 17 and the outer casing 1 is 16mm and the depth of the threaded connection is 10mm, meeting the relevant specifications in the standard concerning cylindrical threaded joints. If the access device according to the standard cable 7 has a tool withdrawal groove, an incompressible axial collar 21 can be added for preventing loosening.
In this embodiment, a nameplate 22 is further disposed on the sidewall of the tail end of the outer casing 1.
The principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above examples is only used for helping understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (1)
1. The utility model provides a laser rangefinder's explosion-proof casing which characterized in that: comprises an outer shell, an outer shell cover plate, an inner shell, a transparent piece and a cable leading-out device; the outer shell cover plate is fixed at the head end of the outer shell, an observation window and a mounting groove opposite to the observation window are formed in the outer shell cover plate, the transparent piece is arranged in the mounting groove, the inner shell is fixed in the outer shell and used for assembling the laser range finder, and the transparent piece is tightly propped in the mounting groove by the head end of the inner shell; the cable leading-out device is arranged at the tail end of the outer shell, and a cable on the laser range finder is led out through the cable leading-out device;
the outer shell is a cuboid shell, the outer shell cover plate is a rectangular plate, and the outer shell cover plate and the outer shell are fixedly connected through a plurality of outer ring screws to form an explosion-proof cavity;
the transparent piece and the bottom and the side wall of the mounting groove are fixed by epoxy resin in a pouring way, and the width of a bonding joint surface of the epoxy resin is 11 mm;
a rubber gasket is arranged between the inner shell and the transparent part, and the inner shell tightly supports the transparent part through the rubber gasket;
the inner shell is a rectangular tube with openings at the head and the tail, the inner shell is connected with the outer shell cover plate through a plurality of inner ring screws through a connecting ring integrally arranged on the periphery of the inner shell, the connecting ring and the front cover plate are arranged in a clearance fit manner, a certain distance needs to be reserved between the rear wall of the laser range finder (6) in the inner shell (3) and the outer shell (1), and the distance is set to be 10 mm;
a rectangular through hole is formed in the bottom plate of the inner shell from the tail end to the head end, and the cable penetrates out of the rectangular through hole;
cutting slits are vertically cut in the inner shell from the tail end of the bottom plate to two side walls of the inner shell, so that part of the shell at the tail end of the inner shell can inwards clamp the laser range finder through pre-tightening screws;
the cable leading-out device comprises a filler pipe, a hexagon nut and a baffle, the head end of the filler pipe is in threaded connection with the outer shell, the cable is led out from the filler pipe, and the filler pipe and the cable are sealed by glue pouring; the separation blade is arranged at the tail end of the filler pipe and used for plugging the sealant in the filler pipe, the hexagonal nut is in threaded connection with the outer wall of the tail end of the filler pipe and used for fixing the separation blade, 20% of the cross section area inside the filler pipe (17) is filled with the filler, and the length of the pouring seal is at least 20 mm;
the shell body apron with the cable eduction gear is stainless steel, the transparency is the toughened glass material, and the thickness of the transparency of toughened glass material is 8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810992955.8A CN109061604B (en) | 2018-08-29 | 2018-08-29 | Explosion-proof shell of laser range finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810992955.8A CN109061604B (en) | 2018-08-29 | 2018-08-29 | Explosion-proof shell of laser range finder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109061604A CN109061604A (en) | 2018-12-21 |
| CN109061604B true CN109061604B (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810992955.8A Active CN109061604B (en) | 2018-08-29 | 2018-08-29 | Explosion-proof shell of laser range finder |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2022941B1 (en) * | 2019-04-15 | 2020-10-22 | Exrobotics B V | Explosion-proof sensor for use in a potentially explosive atmosphere |
| CN110480682A (en) * | 2019-08-28 | 2019-11-22 | 深圳科卫机器人服务有限公司 | A kind of laser sensor mounting device and the navigating robot including the device |
| CN110658511B (en) * | 2019-10-23 | 2023-06-06 | 西安安森智能仪器股份有限公司 | Explosion-proof laser radar navigation device |
| CN112448527A (en) * | 2020-11-25 | 2021-03-05 | 中车永济电机有限公司 | Cable leading-in connector with pulling-out prevention function |
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| CN109061604A (en) | 2018-12-21 |
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