CN108899232B - A kind of optoelectronic switch explosion-proof casing - Google Patents
A kind of optoelectronic switch explosion-proof casing Download PDFInfo
- Publication number
- CN108899232B CN108899232B CN201810992954.3A CN201810992954A CN108899232B CN 108899232 B CN108899232 B CN 108899232B CN 201810992954 A CN201810992954 A CN 201810992954A CN 108899232 B CN108899232 B CN 108899232B
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- China
- Prior art keywords
- optoelectronic switch
- transparent parts
- mounting hole
- proof
- explosion
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/941—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated using an optical detector
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- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
The present invention discloses a kind of optoelectronic switch explosion-proof casing, including support base and proof assembl, the loophole and mounting hole of connection is coaxially offered in support base, installation is used for the Transparent Parts of optoelectronic switch light transmission in mounting hole；Proof assembl includes Transparent Parts clamp sleeve, main casing and the cable entry that front and back is sequentially arranged, Transparent Parts clamp sleeve is threadedly connected in mounting hole, Transparent Parts are against on the rear end face of loophole by the front end of Transparent Parts clamp sleeve, and optoelectronic switch is installed in Transparent Parts clamp sleeve；The front end of main casing is removably connected in mounting hole, and the rear end of main casing and the front end of cable entry are detachably connected, and cable entry is for introducing and fixing the cable connecting with the optoelectronic switch.The optoelectronic switch explosion-proof casing, it is simple and compact for structure, the protection under the confined space to optoelectronic switch can be met, and convenient for disassembly and assembly, explosive-proof grade is high, and practicability is extremely strong.
Description
Technical field
The present invention relates to a kind of optoelectronic switch flame proections, and in particular to a kind of optoelectronic switch explosion-proof casing.
Background technique
Optoelectronic switch is the abbreviation of photoelectric proximity switch, it is using detected material blocking or reflect to light beam, by same
Circuit gating circuit is walked, thus the presence or absence of detection object.Since detection object is not limited to metal, the object of all energy reflection lights
It can be detected, optoelectronic switch has been used as Level measurement, Liquid level, product counting, width differentiation, velocity measuring, has determined
Long shearing, hole identification, signal delay, automatically-controlled door sensing, colour code detection, punching machine and many necks such as cutter and security protection
Domain.
Optoelectronic switch wide variety, wherein based on cylindrical, rectangular and fork-shaped.It is existing under certain specific environment
Optoelectronic switch due to limited space, and make optoelectronic switch be easy by external force destroy, be unable to satisfy its require it is explosion-proof
Equipment or environment under the requirement that uses, therefore, be related to mining machinery, chemical industry and other be related to explosion-proof place when,
Need optoelectronic switch using when it is protected.However, that not only structure is complicated is heavy, tears open for existing optoelectronic switch explosion-protection equipment
Dress is inconvenient, and harsh to use environment requirement, and general applicability is poor.
Summary of the invention
The object of the present invention is to provide a kind of photoelectricity compact-sized, convenient for disassembly and assembly, that explosive-proof grade is high, applied widely to open
Close explosion-proof casing.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of optoelectronic switch explosion-proof casing, including support base and proof assembl, coaxial in the support base
Offer a loophole and a mounting hole, the aperture of the loophole is less than the aperture of the mounting hole, and the loophole and
Mounting hole connection, the mounting hole Inner Front End are equipped with the Transparent Parts for optoelectronic switch light transmission, after the mounting hole
End inner wall is provided with the first internal screw thread；The proof assembl include front and back be sequentially arranged Transparent Parts clamp sleeve, main casing and
Cable entry, the Transparent Parts clamp sleeve are installed in the mounting hole, outside the rear end of the Transparent Parts clamp sleeve
Wall is provided with external screw thread and connect with the front threads of first internal screw thread, and when the Transparent Parts clamp sleeve and the installation
When hole is threadedly coupled, the Transparent Parts are against on the rear end face of the loophole by the front end of the Transparent Parts clamp sleeve, institute
Optoelectronic switch is stated to be installed in the Transparent Parts clamp sleeve；The front end of the main casing is removably connected to the mounting hole
Interior, the rear end of the main casing and the front end of the cable entry are detachably connected, and the cable entry is for drawing
Enter and fixes the cable connecting with the optoelectronic switch.
Optionally, the loophole and the mounting hole of two groups of coaxial arrangements are symmetrically offered on the support base, often
The Transparent Parts are mounted in a mounting hole；Proof assembl described in installing one group respectively on each mounting hole；One
The optoelectronic switch installed in a mounting hole is as photoemission end, the interior light installed of another described mounting hole
Electric switch is as opto-electronic receiver end.
Optionally, the lateral wall of the main casing is provided with pressing device, the pressing device include the first compact heap and
Second compact heap, the medial surface of first compact heap is arranged symmetrically, and there are two semicircle groove, the structures of second compact heap
It is identical with the structure of first compact heap；First compact heap and second compact heap are oppositely arranged, and described
First compact heap and second compact heap are bolted and while compressing two main casings.
Optionally, it is opened up on the one side of the support base there are two threaded hole, the threaded hole is used to connect equipment.
Optionally, the cable entry is material filling type cable entry, the material filling type cable entry packet
Hollow packing pipe is included, the annular half the circumference of the sleeve where it joins the shoulder of outer wall intermediate coaxial setting one of the hollow packing pipe is located at the annular half the circumference of the sleeve where it joins the shoulder front end
The hollow packing pipe be threadedly coupled with the rear end of the main casing, the hollow packing positioned at the annular half the circumference of the sleeve where it joins the shoulder rear end
The rear end of pipe is threadedly coupled a clamp nut, is used to fill filler and fixed cable, the compression inside the hollow packing pipe
The center of nut offers cable through hole.
Optionally, the axis in the hollow packing pipe around the hollow packing pipe is uniformly filled with 4 cables, institute
Stating filler is epoxide-resin glue filler, and 4 cables are poured by the epoxide-resin glue filler and are encapsulated in the hollow packing pipe,
And pour on every cable of being honored as a queen at least 20% cross-sectional area and filled by the epoxide-resin glue filler, the epoxy resin
The axial encapsulation length of glue filler is at least 20mm.
Optionally, a ring washer is set between the hollow packing pipe and the clamp nut, and the ring washer is described
It is against under the action of clamp nut on the rear end face of the hollow packing pipe；Described positioned at the annular half the circumference of the sleeve where it joins the shoulder front end hollow is filled out
Expects pipe periphery is arranged a washer, and when the main casing is connect with the hollow packing pipe screw thread, the washer is located in the master
Between the rear end face of shell and the front end face of the annular half the circumference of the sleeve where it joins the shoulder.
Optionally, the main casing is hollow second level ladder cylinder, and the taper end of the hollow second level ladder cylinder is provided with
External screw thread is connect with the rear threads of first internal screw thread, and the taper end periphery of the hollow second level ladder cylinder is arranged a sealing
When the taper end of washer, the hollow second level ladder cylinder is threadedly coupled with the mounting hole, the seal washer is located in described
Between the rear end face of mounting hole and the half the circumference of the sleeve where it joins the shoulder of the hollow second level ladder cylinder；Interior spiral shell is provided in the Transparent Parts clamp sleeve
Line, the optoelectronic switch are threadedly connected to inside the Transparent Parts clamp sleeve.
Optionally, the Transparent Parts are tempered glass Transparent Parts, and the front end face of the Transparent Parts passes through epoxy resin gluing
It is connected on the rear end face of the loophole, is pressed from both sides between the rear end face of the Transparent Parts and the front end face of the Transparent Parts clamp sleeve
Equipped with Transparent Parts washer.
Optionally, two optoelectronic switch explosion-proof casings use simultaneously, and each optoelectronic switch explosion-proof casing wraps
Include the photoemission end and an opto-electronic receiver end；Two optoelectronic switch explosion-proof casings are oppositely arranged, and
The photoemission end and the opto-electronic receiver end on one optoelectronic switch explosion-proof shell respectively with photoelectricity described in another
Switch the opto-electronic receiver end on explosion-proof shell and photoemission end alignment.
The present invention achieves following technical effect compared with the existing technology:
Optoelectronic switch explosion-proof casing provided by the invention, it is simple and compact for structure, by the way that optoelectronic switch is set in support base
Mounting hole in, meet the protection under the confined space to optoelectronic switch, the explosion-resistant enclosure without large volume is individually by light
Electric switch protects, and saves big quantity space, overcomes in the useful space because of the existing optoelectronic switch explosion-protection equipment of requirement of explosion proof
It is complicated, heavy and the shortcomings that be unsuitable for installing and dismounting, it can both be used under the particular surroundings for having requirement of explosion proof, but also as photoelectricity
The guard shield of switch, it is low to use environment requirement, it is suitable for a variety of explosion-proof environments；Moreover, the optoelectronic switch explosion-proof casing is anti-
Quick-fried grade is high, and each component use is threadedly engaged face and not only simplifies structure, but also convenient for disassembly and assembly, and practicability is extremely strong.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the overall schematic of optoelectronic switch explosion-proof casing of the present invention；
Fig. 2 is the structural schematic diagram of support base of the present invention；
Fig. 3 is the structural schematic diagram of Transparent Parts clamp sleeve of the present invention；
Fig. 4 is the structural schematic diagram of main casing of the present invention；
Fig. 5 is the structural schematic diagram of material filling type cable entry of the present invention；
Fig. 6 is the structural schematic diagram of pressing device of the present invention；
Fig. 7 is the mounting structure schematic diagram of Transparent Parts of the present invention；
Fig. 8 is the structural schematic diagram under loading pipe glue envelope state of the present invention；
Fig. 9 is the A-A diagrammatic cross-section that loading pipe glue seals state in Fig. 8；
Wherein, appended drawing reference are as follows: 1, support base；1-1, loophole；1-2, mounting hole；1-3, threaded hole；1-4, in first
Screw thread；2, Transparent Parts clamp sleeve；2-1, the first external screw thread；2-2, the second internal screw thread；2-3, well；3, main casing；3-1,
Second external screw thread；3-2, third internal screw thread；4, material filling type cable entry；4-1, hollow packing pipe；4-2, annular half the circumference of the sleeve where it joins the shoulder；4-
3, clamp nut；4-4, cable through hole；4-5, third external screw thread；4-6, the 4th external screw thread；5, pressing device；5-1, the first pressure
Tight block；5-2, the second compact heap；5-3, semicircle groove；5-4, bolt hole；6, cable；7, Transparent Parts；7-1, Transparent Parts washer；
8, washer；9, seal washer；10, ring washer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of photoelectricity compact-sized, convenient for disassembly and assembly, that explosive-proof grade is high, applied widely to open
Close explosion-proof casing.
Based on this, the present invention provides a kind of optoelectronic switch explosion-proof casing, including support base and proof assembl, same in support base
Axis offers a loophole and a mounting hole, and the aperture of loophole is less than the aperture of mounting hole, and loophole is connected to mounting hole,
Mounting hole Inner Front End is equipped with the Transparent Parts for optoelectronic switch light transmission, and the rear end inner wall of mounting hole is provided with the first internal screw thread；
Proof assembl includes Transparent Parts clamp sleeve, main casing and the cable entry that front and back is sequentially arranged, Transparent Parts clamp sleeve
It is installed in mounting hole, the rear end outer wall of Transparent Parts clamp sleeve is provided with external screw thread and the front threads of the first internal screw thread connect
It connects, and when Transparent Parts clamp sleeve is threadedly coupled with mounting hole, Transparent Parts are against light transmission by the front end of Transparent Parts clamp sleeve
On the rear end face in hole, optoelectronic switch is installed in Transparent Parts clamp sleeve；The front end of main casing is removably connected in mounting hole,
The rear end of main casing and the front end of cable entry are detachably connected, and cable entry is opened for introducing and fixing with photoelectricity
Correlate the cable connect.
Optoelectronic switch explosion-proof casing provided by the invention, it is simple and compact for structure, by the way that optoelectronic switch is set in support base
Mounting hole in, meet the protection under the confined space to optoelectronic switch, the explosion-resistant enclosure without large volume is individually by light
Electric switch protects, and saves big quantity space, overcomes in the useful space because of the existing optoelectronic switch explosion-protection equipment of requirement of explosion proof
It is complicated, heavy and the shortcomings that be unsuitable for installing and dismounting, it can both be used under the particular surroundings for having requirement of explosion proof, but also as photoelectricity
The guard shield of switch, it is low to use environment requirement, it is suitable for a variety of explosion-proof environments；Moreover, the optoelectronic switch explosion-proof casing is anti-
Quick-fried grade is high, and each component use is threadedly engaged face and not only simplifies structure, but also convenient for disassembly and assembly, and practicability is extremely strong.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Embodiment one:
As shown in Fig. 1~7, the present embodiment provides a kind of optoelectronic switch explosion-proof casing, including support base 1 and proof assembl,
A loophole 1-1 and a mounting hole 1-2 are coaxially offered in support base 1, the aperture of loophole 1-1 is less than the hole of mounting hole 1-2
Diameter, and loophole 1-1 is connected to mounting hole 1-2, mounting hole 1-2 Inner Front End is equipped with the Transparent Parts 7 for optoelectronic switch light transmission,
The rear end inner wall of mounting hole 1-2 is provided with the first internal screw thread 2-1；Proof assembl includes the Transparent Parts clamping sleeve that front and back is sequentially arranged
Cylinder 2, main casing 3 and cable entry, Transparent Parts clamp sleeve 2 are installed in mounting hole 1-2, Transparent Parts clamp sleeve 2
Rear end outer wall be arranged the first external screw thread 2-1 connect with the front threads of the first internal screw thread 1-4, and work as Transparent Parts clamp sleeve 2 and
When mounting hole 1-2 is threadedly coupled, Transparent Parts 7 are against on the rear end face of loophole 1-1 by the front end of Transparent Parts clamp sleeve 2, i.e.,
At half the circumference of the sleeve where it joins the shoulder between loophole 1-1 and mounting hole 1-2, optoelectronic switch is installed in Transparent Parts clamp sleeve 2；Before main casing 3
End is removably connected in mounting hole 1-2, and the rear end of main casing 3 and the front end of cable entry are detachably connected, and cable draws
Enter device for introducing and fixing the cable 6 connecting with optoelectronic switch.
In this specific embodiment, as shown in Fig. 1~7, the loophole of two groups of coaxial arrangements is symmetrically offered on support base 1
Transparent Parts 7 are mounted in 1-1 and mounting hole 1-2, each mounting hole 1-2；Installed respectively on each mounting hole 1-2 one group it is explosion-proof
Component, the mounting means of Transparent Parts 7 and proof assembl is identical in each mounting hole 1-2；Wherein, a mounting hole 1-2
The optoelectronic switch of interior installation is then used as opto-electronic receiver as photoemission end, the interior optoelectronic switch installed of another mounting hole 1-2
End, the end of two optoelectronic switches passes through cable 6 and connect with laser sensor signal.
Further, as shown in Fig. 1~7, the lateral wall of main casing 3 is provided with pressing device 5, and pressing device 5 includes the
The medial surface of one compact heap 5-1 and the second compact heap 5-2, the first compact heap 5-1 are symmetrical arranged there are two semicircle groove 5-3, and half
The diameter of circular arc is identical as the diameter of main casing 3 where round recessed 5-3, between two semicircle groove 5-3 of the first compact heap 5-1
Bolt hole 5-4 there are two opening up, straight lines where two bolt hole 5-4 are parallel with the axis of semicircle groove 5-3, the second pressure
The structure of tight block 5-2 is identical with the structure of the first compact heap 5-1；As shown in figures 1 to 6, the first compact heap 5-1 and second
Compact heap 5-2 is oppositely arranged, and logical across respective bolt by bolt between the first compact heap 5-1 and the second compact heap 5-2
Hole 5-4 achieves a fixed connection, to compress two main casings 3 simultaneously.
Further, as shown in Fig. 2, threaded hole 1-3, threaded hole 1-3 are used for there are two opening up on the one side of support base 1
Connect equipment；Preferably, the side opposite with threaded hole 1-3 of support base 1 can be used for installing nameplate.
Further, as shown in figures 5-8, cable entry is material filling type cable entry 4, and material filling type cable draws
Entering device 4 includes hollow packing pipe 4-1, the annular half the circumference of the sleeve where it joins the shoulder 4-2 of outer wall intermediate coaxial setting one of hollow packing pipe 4-1, this implementation
In example, annular half the circumference of the sleeve where it joins the shoulder 4-2 is preferably regular hexagon half the circumference of the sleeve where it joins the shoulder.Hollow packing pipe 4-1 outer wall positioned at the front end annular half the circumference of the sleeve where it joins the shoulder 4-2 is arranged
There is third external screw thread 4-5 for connecting with the third internal screw thread 3-2 of 3 rear end of main casing, positioned at the hollow of the rear end annular half the circumference of the sleeve where it joins the shoulder 4-2
Loading pipe 4-1 outer wall is provided with the 4th external screw thread 4-6 for connecting clamp nut 4-3, is used to fill inside hollow packing pipe 4-1
Filler and fixed cable 6, the center of clamp nut 4-3 offers cable through hole 4-4, convenient for the traction of cable 6.
Further, as shown in Fig. 8~9, the axis in hollow packing pipe 4-1 around hollow packing pipe 4-1 is uniformly filled with 4
6,4 cables 6 of root cable are uniformly circumferentially distributed around the axis of hollow packing pipe 4-1, wherein filler preferred epoxy glue filler,
4 cables 6 are poured by epoxide-resin glue filler to be encapsulated in hollow packing pipe 4-1, and pour be honored as a queen on every cable 6 at least 20% cross
Sectional area fills sealing by epoxide-resin glue filler, and in this present embodiment, the axial encapsulation length of epoxide-resin glue filler is at least
For 20mm.
Further, as shown in figure 8, a ring washer 10, planchet are arranged between hollow packing pipe 4-1 and clamp nut 4-3
Piece 10 is against on the rear end face of hollow packing pipe 4-1 under the action of clamp nut 4-3, and ring washer 10 is placed in hollow packing pipe 4-
1 end side can prevent filler play；The periphery third external screw thread 4-5 for being located at the annular front end half the circumference of the sleeve where it joins the shoulder 4-2 simultaneously is arranged a washer 8, main
When shell 3 is threadedly coupled with hollow packing pipe 4-1, washer 8 is located in the rear end face of main casing 3 and the front end of annular half the circumference of the sleeve where it joins the shoulder 4-2
Between face, anti-loose effect is played.
Further, as shown in figs. 1 and 4, main casing 3 be hollow second level ladder cylinder, hollow second level ladder cylinder it is thin
End is provided with the second external screw thread 3-1 and is used to connect with the rear threads of the first internal screw thread 1-4, the taper end of hollow second level ladder cylinder
Periphery is arranged a seal washer 9, when the taper end of hollow second level ladder cylinder is threadedly coupled with mounting hole 1-2,9 sandwiched of seal washer
Between the rear end face of mounting hole 1-2 and the half the circumference of the sleeve where it joins the shoulder of hollow second level ladder cylinder；2 inner wall of Transparent Parts clamp sleeve is provided with second
Internal screw thread 2-2, optoelectronic switch are threadedly connected to inside Transparent Parts clamp sleeve 2 by the second internal screw thread 2-2.
Further, Transparent Parts 7 are preferably tempered glass Transparent Parts, and the front end face of Transparent Parts 7 passes through epoxy resin gluing
It is connected on the rear end face of loophole 1-1, and epoxide-resin glue needs to fill up gluing surface, Transparent Parts 7 both can guarantee photoswitc
Light transmission, and can avoid introduced contaminants and enter in main casing.Meanwhile the front end of the rear end face of Transparent Parts 7 and Transparent Parts clamp sleeve 2
Transparent Parts washer 7-1 is folded between face, damage is saturating when Transparent Parts washer 7-1 can effectively prevent Transparent Parts clamp sleeve 2 to compress
Bright part 7, Transparent Parts clamp sleeve 2 are conveniently adjusted the compression degree to Transparent Parts 7 by the way of being threadedly coupled with support base 1,
It is easy to disassemble simultaneously.
Further, it is contemplated that in the case of only using one group of photoswitc, due to the effect of sunlight, using effect can go out
Existing biggish deviation, so the present embodiment preferably two optoelectronic switch explosion-proof casings use simultaneously, each optoelectronic switch explosion-proof shell
Body includes a photoemission end and an opto-electronic receiver end；Two optoelectronic switch explosion-proof casings are oppositely arranged, and a light
Photoemission end and opto-electronic receiver end on electric switch explosion-proof shell respectively with the opto-electronic receiver on another optoelectronic switch explosion-proof shell
End and the alignment of photoemission end.
Specifically used explanation is made to the present embodiment below, is specifically comprised the following steps:
Step 1: 2 Transparent Parts 7 are adhesive in loophole 1-1 with proportioned epoxy resin using needle tubing
Rear end face on, epoxide-resin glue needs to fill up gluing surface, wherein Transparent Parts 7 be the cylindric transparent body；
Step 2: Transparent Parts washer 7-1 is placed in the rear end face of Transparent Parts 7, is pacified later using dedicated photoelectric tube
Holding tool screws in mounting hole 1-2 2 Transparent Parts clamp sleeves 2 until the front end of Transparent Parts clamp sleeve 2 compresses Transparent Parts
7；
Step 3: the epoxide-resin glue excessive from loophole 1-1 is removed with alcohol, and guarantees the gluing of epoxide-resin glue
Length >=3mm is laid flat to be solidified；
Step 4: using dedicated photoelectric tube installation tool 2 optoelectronic switches are screwed into two Transparent Parts respectively and compressed
In sleeve 2, until the laser emitting surface of optoelectronic switch and the laser pick-off face of another optoelectronic switch are flat with Transparent Parts 7
Row；
Washer 8: being placed on the taper end of main casing 3 by step 5, and the taper end of two main casings 3 is screwed into mounting hole 1-2 later
It is interior, and ensure that guaranteeing that two main casings 3 are screwed into depth is 9mm.
Step 6: the first compact heap 5-1 and the second compact heap 5-2 are respectively placed in the top of two main casings 3 under
Side and alignment relative setting, between adjusting between the first compact heap 5-1 and the second compact heap 5-2 and the rear end face of support base 1 at least
After 17.5mm, using bolt by the first compact heap 5-1 and the second compact heap 5-2 connection, until the first compact heap 5-1 and second
Compact heap 5-2 compresses two main casings 3；
Step 7: cable 6 is uniformly placed in hollow packing pipe 4-1, after tensing cable 6 with special fixture, in
The tail portion empty loading pipe 4-1 adds ring washer 10, and injects epoxide-resin glue into hollow packing pipe 4-1 using needle tubing, guarantees to pour
Envelope length is 22mm, finally compress ring washer 10 with clamp nut 4-3, then remove excessive encapsulation agent with dehydrated alcohol, is laid flat
Empty loading pipe 4-1 is to be solidified；Wherein, the preferred hex nut of clamp nut 4-3, guarantee when 6 introducing device encapsulation of cable cable 6 with
Spacing, cable 6 between cable 6 and the spacing of hollow packing pipe 4-1 inner hole inner wall are not less than 1mm, on each point at least
It is filled by filler 20% cross section；
Step 8: the front end by 9 sets of an incompressible seal washer in hollow packing pipe 4-1, then by hollow packing
Pipe 4-1 is screwed into the rear end of main casing 3, and it is 10mm that guarantee, which is threaded into depth,；
Step 9: two optoelectronic switch explosion-proof casings are oppositely arranged, if photoelectricity on the optoelectronic switch explosion-proof casing of side
To the property of pipe be transmitting terminal in upper, receiving end under, then on the optoelectronic switch explosion-proof casing of the other side photoelectric tube property
For transmitting terminal under, receiving end is upper.
It can be seen that optoelectronic switch explosion-proof casing provided by the invention, simple and compact for structure, by the way that optoelectronic switch to be set with
In in the mounting hole of support base, the protection under the confined space to optoelectronic switch is met, the explosion-resistant enclosure without large volume
Individually optoelectronic switch is protected, saves big quantity space, is overcome in the useful space because of the existing optoelectronic switch of requirement of explosion proof
Explosion-protection equipment is complicated, heavy and the shortcomings that be unsuitable for installing and dismounting, can not only use under the particular surroundings for having requirement of explosion proof, but also can
It is low to use environment requirement as the guard shield of optoelectronic switch, it is suitable for a variety of explosion-proof environments；Moreover, the optoelectronic switch is anti-
Blasting shell body explosive-proof grade is high, and each component use is threadedly engaged face and not only simplifies structure, but also convenient for disassembly and assembly, and practicability is extremely strong.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (10)
1. a kind of optoelectronic switch explosion-proof casing, it is characterised in that: including support base and proof assembl, coaxially opened in the support base
Equipped with a loophole and a mounting hole, the aperture of the loophole is less than the aperture of the mounting hole, and the loophole and institute
Mounting hole connection is stated, the mounting hole Inner Front End is equipped with the Transparent Parts for optoelectronic switch light transmission, the rear end of the mounting hole
Inner wall is provided with the first internal screw thread；The proof assembl includes Transparent Parts clamp sleeve, main casing and the electricity that front and back is sequentially arranged
Cable introducing device, the Transparent Parts clamp sleeve are installed in the mounting hole, the rear end outer wall of the Transparent Parts clamp sleeve
It is provided with external screw thread to connect with the front threads of first internal screw thread, and when the Transparent Parts clamp sleeve and the mounting hole
When threaded connection, the Transparent Parts are against on the rear end face of the loophole by the front end of the Transparent Parts clamp sleeve, described
Optoelectronic switch is installed in the Transparent Parts clamp sleeve；The front end of the main casing is removably connected in the mounting hole,
The rear end of the main casing and the front end of the cable entry are detachably connected, and the cable entry is for introducing simultaneously
The fixed cable being connect with the optoelectronic switch.
2. optoelectronic switch explosion-proof casing according to claim 1, it is characterised in that: symmetrically offer two on the support base
The loophole and the mounting hole of coaxial arrangement are organized, is mounted on the Transparent Parts in each mounting hole；Each institute
State proof assembl described in installing one group respectively on mounting hole；The optoelectronic switch installed in one mounting hole is as photoelectricity
Transmitting terminal, the interior optoelectronic switch installed of another described mounting hole is as opto-electronic receiver end.
3. optoelectronic switch explosion-proof casing according to claim 2, it is characterised in that: the lateral wall of the main casing is provided with
Pressing device, the pressing device include the first compact heap and the second compact heap, and the medial surface of first compact heap is symmetrically set
It sets there are two semicircle groove, the structure of second compact heap is identical with the structure of first compact heap；Described first
Compact heap and second compact heap are oppositely arranged, and first compact heap and second compact heap are bolted simultaneously
Two main casings are compressed simultaneously.
4. optoelectronic switch explosion-proof casing according to claim 2, it is characterised in that: opened up on the one side of the support base
There are two threaded hole, the threaded hole is for connecting equipment.
5. optoelectronic switch explosion-proof casing according to claim 3, it is characterised in that: the cable entry is material filling type
Cable entry, the material filling type cable entry include hollow packing pipe, same among the outer wall of the hollow packing pipe
The annular half the circumference of the sleeve where it joins the shoulder of axis setting one, connects positioned at the hollow packing pipe of the annular half the circumference of the sleeve where it joins the shoulder front end and the rear end screw thread of the main casing
It connects, the rear end positioned at the hollow packing pipe of the annular half the circumference of the sleeve where it joins the shoulder rear end is threadedly coupled a clamp nut, the hollow packing
For filling filler and cable inside pipe, the center of the clamp nut offers cable through hole.
6. optoelectronic switch explosion-proof casing according to claim 5, it is characterised in that: in the hollow packing pipe in described
The axis of empty loading pipe is uniformly filled with 4 cables, and the filler is epoxide-resin glue filler, and 4 cables are by institute
It states epoxide-resin glue filler and pours the cross section for being encapsulated in the hollow packing pipe, and pouring on every cable of being honored as a queen at least 20%
Product is filled by the epoxide-resin glue filler, and the axial encapsulation length of the epoxide-resin glue filler is at least 20mm.
7. optoelectronic switch explosion-proof casing according to claim 5, it is characterised in that: the hollow packing pipe and the compression
One ring washer is set between nut, and the ring washer is against the rear end of the hollow packing pipe under the action of clamp nut
On face；Be arranged a washer positioned at the hollow packing pipe periphery of the annular half the circumference of the sleeve where it joins the shoulder front end, the main casing with it is described hollow
When loading pipe is threadedly coupled, the washer is located between the rear end face of the main casing and the front end face of the annular half the circumference of the sleeve where it joins the shoulder.
8. optoelectronic switch explosion-proof casing according to claim 2, it is characterised in that: the main casing is hollow second level ladder
Cylinder, the taper end of the hollow second level ladder cylinder are provided with external screw thread and connect with the rear threads of first internal screw thread, institute
The taper end periphery for stating hollow second level ladder cylinder is arranged a seal washer, the taper end and the peace of the hollow second level ladder cylinder
When filling hole threaded connection, the seal washer is located in the rear end face of the mounting hole and the lift of the hollow second level ladder cylinder
Between shoulder；Internal screw thread is provided in the Transparent Parts clamp sleeve, the optoelectronic switch is threadedly connected to the Transparent Parts and compresses
Sleeve inner.
9. optoelectronic switch explosion-proof casing according to claim 2, it is characterised in that: the Transparent Parts are that tempered glass is transparent
The front end face of part, the Transparent Parts is adhered on the rear end face of the loophole by epoxide-resin glue, after the Transparent Parts
Transparent Parts washer is folded between end face and the front end face of the Transparent Parts clamp sleeve.
10. according to optoelectronic switch explosion-proof casing described in claim 2~9 any one, it is characterised in that: two photoelectricity
Switch explosion-proof casing uses simultaneously, and each optoelectronic switch explosion-proof casing includes the photoemission end and an institute
State opto-electronic receiver end；Two optoelectronic switch explosion-proof casings are oppositely arranged, and on an optoelectronic switch explosion-proof casing
The photoemission end and the opto-electronic receiver end connect with the photoelectricity on optoelectronic switch explosion-proof casing described in another respectively
Receiving end and photoemission end alignment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810992954.3A CN108899232B (en) | 2018-08-29 | 2018-08-29 | A kind of optoelectronic switch explosion-proof casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810992954.3A CN108899232B (en) | 2018-08-29 | 2018-08-29 | A kind of optoelectronic switch explosion-proof casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108899232A CN108899232A (en) | 2018-11-27 |
| CN108899232B true CN108899232B (en) | 2019-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810992954.3A Active CN108899232B (en) | 2018-08-29 | 2018-08-29 | A kind of optoelectronic switch explosion-proof casing |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109887794A (en) * | 2019-04-17 | 2019-06-14 | 飞浦防爆电器有限公司 | A kind of moving seesaw-type anti-blast light switch |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0766838B2 (en) * | 1989-09-25 | 1995-07-19 | 株式会社中部プラントサービス | Explosion-proof plug connector |
| CN201181933Y (en) * | 2008-04-11 | 2009-01-14 | 孙建民 | Explosion-proof light-operated switch |
| CN204407210U (en) * | 2014-12-31 | 2015-06-17 | 创正防爆电器有限公司 | A kind of explosion-proof travel switch housing |
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| CN108899232A (en) | 2018-11-27 |
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