CN109714924A - It is a kind of for fastening the method and device of electric apparatus for explosive atmospheres cavity - Google Patents
It is a kind of for fastening the method and device of electric apparatus for explosive atmospheres cavity Download PDFInfo
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- CN109714924A CN109714924A CN201910128060.4A CN201910128060A CN109714924A CN 109714924 A CN109714924 A CN 109714924A CN 201910128060 A CN201910128060 A CN 201910128060A CN 109714924 A CN109714924 A CN 109714924A
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- 239000002360 explosive Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 83
- 230000009979 protective mechanism Effects 0.000 claims abstract description 22
- 230000000694 effects Effects 0.000 claims description 10
- 230000035488 systolic blood pressure Effects 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 11
- 238000005336 cracking Methods 0.000 description 5
- 230000004224 protection Effects 0.000 description 4
- 230000003993 interaction Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
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- 208000029152 Small face Diseases 0.000 description 1
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- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The present invention has been encircleed a kind of for fastening the method and device of electric apparatus for explosive atmospheres cavity, the device for being used to fasten electric apparatus for explosive atmospheres cavity of the invention, comprising: for closing the equipment cover board of electrical equipment cavity；The cover board is fastened to the fastening bolt of the electrical equipment cavity；Lock the locking mechanism of the fastening bolt；The safety protective mechanisms for fastening the locking mechanism, for preventing the locking mechanism from arbitrarily being dismantled.
Description
Technical field
The present invention relates to explosive atmosphere explosion-proof technology fields, in particular to a kind of for fastening electric apparatus for explosive atmospheres cavity
Method and device.
Background technique
Explosive atmosphere electrical equipment all there is explosion-proof performance, the fastening method one of electrical apparatus interstar connection chamber lid plate
As be fixed by bolts, the screw hole of wire connection cavity cover board is divided into no retainer type, has retainer type and hole countersunk, no matter that mode, make
Industry personnel can open without authorization wire connection cavity cover board and livewire work, solution are usually: install warning additional on electrical equipment
Mark: " being powered off before uncapping ", " forbidding livewire work " etc..
Summary of the invention
The object of the present invention is to provide a kind of for fastening the method and device of electric apparatus for explosive atmospheres cavity, by locking machine
Structure and safety protective mechanisms, the cover board for reaching quick-fried electrical equipment is not easy to open technical effect, while can fasten in antiknock device
Bolt head easily installs instruments the components such as instrument, sensor, uses for monitoring.
According to the first aspect of the invention, a kind of method for fastening electric apparatus for explosive atmospheres cavity is provided, comprising:
Utilize equipment cover closure electrical equipment cavity；
The cover board is fastened on the electrical equipment cavity using fastening bolt；
The fastening bolt is locked or connected using locking mechanism；And
Safety protective mechanisms for fastening the locking mechanism are set on locking mechanism, for preventing the locking machine
Structure is arbitrarily dismantled or for connecting with external devices.
Preferably, when cover board is equipped with counterbore, the head of the fastening bolt is placed in the counterbore of cover board, and by institute
It states locking mechanism or part is arranged in the counterbore of the cover board and covers the fastening bolt；When the fastening bolt is outer
When (interior) hex bolts, by compressing the counterbore inner wall with retaining mechanism, the friction self-locking to fastening bolt is realized；When described
When fastening bolt is hexagon socket head cap screw, by compressing the fastening bolt with locking mechanism, the locking to fastening bolt is realized.
Preferably, when cover board is stretched out on the head of fastening bolt, by locking mechanism setting in the fastening bolt week
It encloses；By compressing the fastening bolt with locking mechanism, the friction self-locking to fastening bolt is realized.
According to the second aspect of the invention, the present invention provides a kind of for fastening the device of electric apparatus for explosive atmospheres cavity,
Include:
For closing the equipment cover board of electrical equipment cavity；
The cover board is fastened to the fastening bolt of the electrical equipment cavity；
Characterized by further comprising:
Lock the locking mechanism of the fastening bolt；And
The safety protective mechanisms for fastening the locking mechanism, for prevent the locking mechanism from arbitrarily being dismantled or for
External devices connection.
According to a first embodiment of the present invention, the fastening bolt is mounted to outer (interior) the hexagonal fastening in the counterbore of cover board
Bolt；Locking mechanism covers outer (interior) the hexagonal fastening bolt and includes: to be mounted in the counterbore and have inner cone
The pipe sleeve that cracks in shape face；Across the lock screw for the pipe sleeve that cracks, lower end has tapered portion, for by with crack in pipe sleeve
Circular conical surface interaction struts the pipe sleeve that cracks, the outer surface for the pipe sleeve that makes to crack and the counterbore surface friction self-locking；It is located at
Slotted pipe set upper side and the clamp nut for being threadedly coupled the lock screw；The safety protective mechanisms include: and are used to prevent
Standby mother that is that the clamp nut loosens and being threadedly coupled the lock screw；It is provided in its on the lock screw head
Connector with connection screw thread.
According to a second embodiment of the present invention, the fastening bolt is mounted to the fastening spiral shell of the interior hexagonal in the counterbore of cover board
Bolt；The locking mechanism covers the interior hexagonal fastening bolt and includes: the slotted pipe being mounted in hexagon socket head cap screw head bore
Set；The lock-screw that connect with the slotted pipe external threading, lower end have tapered portion, for by cracking with the pipe sleeve that cracks
Locate interaction, strut the pipe sleeve that cracks, the inner surface friction of the outer surface and interior hexagonal fastening bolt that make the pipe sleeve that cracks is certainly
Lock.The safety protective mechanisms include: to be threaded in slotted pipe to cover upper inner bolt cover；It connects at the top of the inner bolt cover
Screw rod；It is outside the inner bolt cover and make the screw rod pass through outer bolt cover；It is threadedly coupled the screw rod, and compresses institute
The bolt sleeve of outer bolt cover is stated, there is the connector that can be connect with other devices on the bolt sleeve.
Third embodiment according to the present invention, the fastening bolt are outer-hexagonal bolts, are set described in hexagon-head stretching
Standby cover board；The locking mechanism includes: the pipe sleeve that cracks for being mounted on outer-hexagonal bolt head；It is mounted on outside the pipe sleeve that cracks
Can elastic clip, with lock-screw, when for tightening the lock-screw, the lower part systolic pressure for the pipe sleeve that cracks is tightly solid
The turret head of bolt makes friction self-locking between the two；The safety protective mechanisms include: to be mounted on equipment cover board and cover
The bolt cover of the retaining mechanism；In the bolt cover and pipe sleeve that cracks that each of is connected at least two retaining mechanisms
The connection sheet of upper end；Tension in the bolt cover and that the connection sheet of each slotted pipe set upper side links together
Piece；The bolt for tensing piece is connected across the bolt cover, bolt is equipped with the connector for installing sensor.
The cover board is stretched out on the head of fourth embodiment according to the present invention, the fastening bolt；The locking mechanism packet
It includes: covering the split ring on the fastening bolt head；The bolt sleeve with jackscrew being sleeved on the split ring, the jackscrew
Split ring is pressed across bolt sleeve, contacts split ring with the fastening bolt, generates friction self-locking effect.
The cover board is stretched out on fifth embodiment according to the present invention, the fastening bolt head, or has the encirclement of bolt guard ring；
The locking mechanism includes: the split ring covered around the head of the fastening bolt or bolt guard ring；It is mounted on the opening
The lock-screw of the opening of ring, for by tightening the split ring, making the opening ring set be locked the fastening bolt
Friction self-locking occurs for hexagon-head or bolt guard ring；The safety protective mechanisms include: to cover at least two fastening bolts
Or the bolt cover of bolt guard ring and at least two locking mechanisms；In the bolt cover by least two locking mechanisms
The connection sheet that two split rings link together；The company of the connection connection sheet and the bolt cover in the bolt cover
Extension bar；The bolt sleeve being fixed on outside the bolt cover has the connector for connecting sensor thereon.
The cover board is stretched out on the head of 6th or the 7th embodiment according to the present invention, the fastening bolt；The locking
Mechanism is the bolt sleeve with jackscrew covered on the head of the fastening bolt, and the jackscrew passes through the bolt sleeve and presses institute
The head of fastening bolt, fastening bolt described in friction self-locking are stated, friction self-locking includes that jackscrew or path cylinder aperture stop it
Effect；
The safety protective mechanisms are, with the upper cover being structure as a whole at the top of the bolt sleeve with jackscrew, to open thereon
Equipped with connector.
Compared with prior art, the present invention locks fastening bolt by locking mechanism, passes through safety protection mechanism
Safeguard protection is provided to locking mechanism, thus the safety of electric apparatus for explosive atmospheres can be provided significantly, that is, is less susceptible to open, simultaneously
It can easily install instruments the components such as instrument, sensor on antiknock device fastening bolt head again.
Apparatus and method of the present invention is described in detail with specific embodiment with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the schematic diagram that the device for fastening electric apparatus for explosive atmospheres cavity of the invention is constituted；
Fig. 2 is the first embodiment schematic diagram of the device for fastening electric apparatus for explosive atmospheres cavity of the invention；
Fig. 3 is the second embodiment schematic diagram of the device for fastening electric apparatus for explosive atmospheres cavity of the invention；
Fig. 4 is the 3rd embodiment schematic diagram of the device for fastening electric apparatus for explosive atmospheres cavity of the invention；
Fig. 5 be show the K of Fig. 4 to and Fig. 8 structure from M to clip schematic diagram；
Fig. 6 is the fourth embodiment schematic diagram of the device for fastening electric apparatus for explosive atmospheres cavity of the invention；
Fig. 7 is the schematic diagram for showing the structure of split ring of Fig. 6；
Fig. 8 is the 5th embodiment schematic diagram of the device for fastening electric apparatus for explosive atmospheres cavity of the invention；
Fig. 9 is the schematic diagram for the structure for showing the Q of Fig. 8 to clip；
Figure 10 is the sixth embodiment schematic diagram of the device for fastening electric apparatus for explosive atmospheres cavity of the invention；
Figure 11 is the 7th embodiment schematic diagram of the device for fastening electric apparatus for explosive atmospheres cavity of the invention.
Description of symbols: 1- bolt cover A；3- bolt cover B；4- lock-screw；5- cracks pipe sleeve A；6- electrical equipment lid
Plate；7- outer-hexagonal fastening bolt；8- electrical equipment cavity；10- bolt cover C；Hexagonal fastening bolt in 11-；12- cracks pipe sleeve B；
13- lock-screw B；14- spring washer；16- cracks pipe sleeve C；18- split ring；19- band jackscrew bolt sleeve A；20- jackscrew；21-
Band jackscrew bolt sleeve B；22- connector A；101- connector B；171- can elastic clip A；172- lock-screw A；181- locking screw
Follow closely B；182- can elastic clip B；183- can elastic clip C；184-bolt guard rings；197- connection sheet A；198- connecting rod；201-
Connector C；202- screw rod；203- bolt sleeve；205- bolt cover D；301- nut；302- back of the body cap；901- connection sheet B；902- is drawn
Tight piece；903- connector D；904- bolt.
Specific embodiment
The present invention provides a kind of method realized shown in Fig. 1-Figure 11 for fastening electric apparatus for explosive atmospheres cavity, comprising:
Electrical equipment cavity 8 is closed using equipment cover board 6；The cover board 6 is fastened to the electrical equipment cavity 8 using fastening bolt
On；The fastening bolt is locked using locking mechanism；The safety being arranged on locking mechanism for fastening the locking mechanism is anti-
Mechanism is protected, for preventing the locking mechanism from arbitrarily being dismantled.
As shown in Figures 2 and 3, when cover board 6 is equipped with counterbore, the head of the fastening bolt can be placed in by the present invention
In the counterbore of cover board 6, and the locking mechanism or part are arranged in the counterbore of the cover board and cover the fastening spiral shell
Bolt.
In addition, the present invention is described heavy by being compressed with retaining mechanism when the fastening bolt is outer (interior) hex bolts
Hole inner wall realizes the friction self-locking to fastening bolt；When the fastening bolt is hexagon socket head cap screw, the present invention passes through with locking
Mechanism compresses the fastening bolt, realizes the locking to fastening bolt.
In addition, when cover board 6 is stretched out on the head of fastening bolt, the present invention can be by the locking as shown in Fig. 4-Figure 11
Mechanism is arranged around the fastening bolt；By compressing the fastening bolt with locking mechanism, the friction to fastening bolt is realized
Self-locking, friction self-locking includes the barrier effect of jackscrew or path cylinder aperture.
The present invention also provides the devices for fastening electric apparatus for explosive atmospheres cavity, shown in Fig. 1, comprising: for closing electricity
The equipment cover board 6 of gas equipment cavity 8；The cover board 6 is fastened to the fastening bolt of the electrical equipment cavity 8；Described in locking
The locking mechanism of fastening bolt；The safety protective mechanisms for fastening the locking mechanism, for preventing the locking mechanism random
Disassembly, or connect with external devices.
It is described tight in the device first embodiment for fastening electric apparatus for explosive atmospheres cavity of the invention shown in Fig. 2
Fixing bolt is mounted to the outer-hexagonal fastening bolt 7 in the counterbore of cover board 6；Locking mechanism covers the outer-hexagonal fastening bolt 7
It and include: to be mounted on the pipe sleeve 5 in the counterbore and with inner conical surface that cracks；Across the lock screw for the pipe sleeve 5 that cracks
4, lower end has tapered portion, for strutting the pipe sleeve 5 that cracks, making by interacting with the internal conical surface for the pipe sleeve 5 that cracks
Crack pipe sleeve 5 outer surface and the counterbore surface friction self-locking；Positioned at 5 upper end of pipe sleeve and the threaded connection locking spiral shell of cracking
The clamp nut 301 of nail 4；The safety protective mechanisms include: with for preventing that the clamp nut from loosening and be threadedly coupled
The standby cap 302 of the lock screw 4；The connector B thereon with connection screw thread being provided on the lock screw head
101。
Specifically, when installing outer-hexagonal fastening bolt 7 in the bolt hole of equipment cover board 6 or in bolt guard ring, institute
State locking mechanism, comprising: the pipe sleeve A 5 that cracks is mounted in counterbore, lock screw 4 passes through the pipe sleeve A 5 that cracks, screws on nut 301,
When tightening lock-screw 4, conical nose struts the pipe sleeve 5 that cracks, and pressure is applied to counterbore inner surface, as pressure increases,
Frictional force between the two also increases, and after reaching a certain level, friction self-locking occurs, the pipe sleeve that cracks at this moment can not be taken any more from counterbore
A 5, nut 301 must be unscrewed by removing.Screwing on back of the body cap 302 prevents from loosening.
In addition, being equipped with connector B 101 and connection screw thread on lock-screw 4, pin or lead are used after connecting other devices
Envelope seals.
In the device second embodiment for fastening electric apparatus for explosive atmospheres cavity of the invention shown in Fig. 3, spiral shell is fastened
Bolt is mounted to the interior hexagonal fastening bolt 11 in the counterbore of electrical equipment cover board 6；The locking mechanism covers the interior hexagonal
Fastening bolt 11 and include: the pipe sleeve B12 that cracks being mounted in hexagon socket head cap screw head bore；With 12 screw thread of pipe sleeve B that cracks
The lock-screw B 13 of connection, lower end have tapered portion, for passing through place's interaction of cracking with the pipe sleeve A 5 that cracks, support
Crack pipe sleeve A 5, makes the crack outer surface of pipe sleeve and the inner surface friction self-locking of interior hexagonal fastening bolt 11.The peace
Full protection mechanism includes: the inner bolt cover B 3 for being threaded in and cracking on pipe sleeve B 12；Connect 3 top inner bolt cover B
Screw rod 202；It is outside the inner bolt cover and make the screw rod 202 pass through outer bolt cover A 1；It is threadedly coupled the silk
Bar 201, and compress the bolt sleeve 203 of the outer bolt cover A 1, having on the bolt sleeve 203 can connect with other devices
Connector C 201.
Specifically, when installing interior hexagonal fastening bolt 11 in the bolt hole of electrical equipment cover board 6 or in bolt guard ring
When, the locking mechanism includes: the pipe sleeve B 12 that cracks being mounted in hexagon socket head cap screw head bore, and 12 screw thread of pipe sleeve B that cracks connects
Lock-screw B 13 is met, when firmly tightening lock-screw B 13, the conical nose of the lock-screw B13 pipe sleeve B 12 that will crack is supportted
Open, make it is swollen increase to bolt head internal surface of hole, as pressure increases, frictional force between the two also increases, and reaches certain journey
Friction self-locking occurs after degree, the pipe sleeve B 12 that cracks can not be taken any more out of bolt head holes, when removing, it is necessary to unscrew lock-screw B
13。
In addition, being threaded in the bolt cover B 3 to crack on pipe sleeve B 12, bolt cover B 3 is connect with screw rod 202, screw rod
202 pass through bolt cover A 1, and screw on bolt sleeve 203, and bolt sleeve 203 can be connect with other devices, and have connector C 201.
In Fig. 4 and the device 3rd embodiment for fastening electric apparatus for explosive atmospheres cavity of the invention shown in fig. 5, tightly
Fixing bolt is outer (interior) hex bolts 7, and the equipment cover board 6 is stretched out on head.The locking mechanism includes: to be mounted on bolt 7
The pipe sleeve C 16 that cracks on head；Be mounted on outside the pipe sleeve C 16 that cracks can elastic clip A 171, with lock-screw
A 172, when for tightening the lock-screw A 172, the head of the lower part systolic pressure for the pipe sleeve C 16 that cracks tightly fixing bolt 7,
Make friction self-locking between the two.The safety protective mechanisms include: to be mounted on equipment cover board and cover the retaining mechanism
Bolt cover C 10；In the bolt cover C 10 and pipe sleeve C 16 that cracks that each of is connected at least two retaining mechanisms
The connection sheet 901 of upper end；It is in the bolt cover C 10 and connect each connection sheet 901 for cracking 16 upper end pipe sleeve C
Tension piece 902 together；The bolt 904 for tensing piece 902 is connected across the bolt cover C 10, bolt 904 is equipped with
For installing the connector 903 of the instrument and meters such as sensor.
Specifically, when the fastening bolt 7 of equipment cover board 6 is not in counterbore or when without adding guard ring, the locking mechanism
Include: the pipe sleeve C 16 that cracks for being mounted on outer-hexagonal bolt head, outside the pipe sleeve C 16 that cracks installation can elastic clip A 171,
When its lock-screw A 172 is tightened, the head of the lower part systolic pressure for the pipe sleeve C 16 that cracks tightly fixing bolt 7, as pressure increases,
Frictional force between the two also increases, and friction self-locking occurs after reaching a certain level, and the pipe sleeve C that cracks can not be taken any more from bolt head
16, when removing, it is necessary to unscrew lock-screw A 172.More than two bolts can install locking mechanism simultaneously.
In addition, the upside for the pipe sleeve C 16 that cracks is equipped with connection sheet B 901, connection sheet is fastened by tensing piece 902, is tensed
There is bolt 904 on piece 902, bolt 904 is equipped with connector D 903, and bolt 904 passes through bolt cover C 10, and bolt cover C 10 is buckled
The firmly bolt of two or more with locking mechanisms, bolt 904 install sensor etc., there is connector D 903 thereon.
In Fig. 6 and the device fourth embodiment for fastening electric apparatus for explosive atmospheres cavity of the invention shown in Fig. 7, tightly
The cover board 6 is stretched out on the head of fixing bolt 7；The locking mechanism includes: the split ring 18 covered on 7 head of fastening bolt；
The bolt sleeve A 19 with jackscrew 20 being sleeved on the split ring 18, the jackscrew pass through bolt sleeve A 19 and press split ring
18, it contacts split ring 18 with the fastening bolt, generates friction self-locking effect.
Specifically, when the fastening bolt 7 of equipment cover board 6 is not in counterbore or when without adding guard ring, the locking mechanism
It include: the band jackscrew bolt sleeve A 19 for being mounted on 7 head of fastening bolt, when jackscrew 20 is tightened, split ring 18 is shunk, and is compressed tight
The bolt head of fixing bolt 7, as pressure increases, frictional force between the two also increases, and friction occurs after reaching a certain level certainly
Lock can take any more band jackscrew bolt sleeve A 19 from bolt head, when removing, it is necessary to unscrew jackscrew 20.
In Fig. 8 and the 5th embodiment of device for fastening electric apparatus for explosive atmospheres cavity of the invention shown in Fig. 9, tightly
The cover board 6 is stretched out on 7 head of fixing bolt.Locking mechanism include: cover on the head of the fastening bolt 7 can elastic clip B
182；Be mounted on it is described can elastic clip B 182 opening lock-screw B 181, for by tightening the locking screw
Nail, make it is described can elastic clip B 182 be locked the head of the fastening bolt 7, friction self-locking occurs；Or handle can elastic clip C
183 sets in the outside of bolt guard ring 184,172 structure of lock-screw A as shown in figure 5, for by tightening the lock-screw,
Make it is described can the elastic clip C 183 bolt guard ring 184 that is locked friction self-locking occurs.The safety protective mechanisms include: cover
The live in bolt cover D 205 or bolt guard ring 184 of at least two outer-hexagonal bolts 7 and at least two locking mechanisms；Positioned at institute
Stating opening two of at least two locking mechanisms in bolt cover D 205 can the connection sheet A that links together of elastic clip B 182
197；The connecting rod 198 of the connection connection sheet and the bolt cover D 205 in the bolt cover D 205；It is fixed on
Bolt sleeve 203 outside the bolt cover D 205 has the connector for connecting sensor etc. thereon.
Specifically, the locking mechanism includes: to be mounted on tightly when the fastening bolt 7 of equipment cover board 6 is not in counterbore
7 head of fixing bolt can elastic clip B 182, when lock-screw B 181 is tightened, contracting compress fastening bolt 7 turret head, with
Pressure increase, frictional force between the two also increases, friction self-locking occurs after reaching a certain level, can take any more from bolt head
It can elastic clip B 182.When removing, it is necessary to unscrew lock-screw B 181；There is spiral shell outside the fastening bolt of equipment cover board 6
When bolt guard ring 184, be mounted on the outside of bolt guard ring 184 can elastic clip C 183, when lock-screw A 172 is tightened, contracting pressure
Bolt guard ring 184, as pressure increases, frictional force between the two also increases, and friction self-locking occurs after reaching a certain level.
The safety protective mechanisms of the embodiment include: more than two locking mechanisms can elastic clip B 182 and can pine
Installation connection sheet A 197 is more than two locking mechanism connections on tight clip C 183, and connecting rod 198 is connection sheet A 197 and spiral shell
The connection of bolt cover D 205, fixing bolt set 203 is connect with other devices on bolt cover D 205.
Figure 10 shows the device sixth embodiment for being used to fasten electric apparatus for explosive atmospheres cavity of the invention, in the embodiment
In, the cover board 6 is stretched out on the head of fastening bolt 7.Locking mechanism is the band with jackscrew 20 covered on the head of fastening bolt 7
Jackscrew bolt sleeve B 21, the jackscrew 20, which is passed through, presses the head of the fastening bolt with jackscrew bolt sleeve B 21, to rub
Self-locking fastening bolt.In the sixth embodiment, there are four jackscrews 20, and two of them withstand on 7 head of fastening bolt；Other two
Then withstand on the lower end on 7 head of fastening bolt.Safety protective mechanisms are, and are at the top of the band jackscrew bolt sleeve B 21 with jackscrew 20
The upper cover of integral structure offers connector 22 thereon.
Specifically, the locking mechanism includes: to be mounted on tightly when the fastening bolt 7 of equipment cover board 6 is not in counterbore
The band jackscrew bolt sleeve B 21 on 7 head of fixing bolt compresses the bolt head of fastening bolt 7, as pressure increases when jackscrew 20 is tightened
Greatly, frictional force between the two also increases, and friction self-locking occurs after reaching a certain level, the blocking including jackscrew to bolt head
Effect can take any more band jackscrew bolt sleeve B 21 from bolt head, when removing, it is necessary to unscrew jackscrew 20.
In addition, being provided with connector 22 on band jackscrew bolt sleeve B 21, it is connect with other devices.
Figure 11 shows the 7th embodiment of device for being used to fasten electric apparatus for explosive atmospheres cavity of the invention, the 7th embodiment
Difference with sixth embodiment shown in Fig. 10 is: band 21 lower end jackscrew bolt sleeve B is machined with big path cylindrical hole 210, with
The cylinder bore diameter in the small face thereon of cylindrical hole of cover board contact, detains the big path cylindrical hole 210 with jackscrew bolt sleeve B 21
In fastening bolt 7, jackscrew 20 is tightened, presses against the head side of fastening bolt 7, forms externally (interior) hexagonal fastening bolt 7
Friction self-locking, it may be assumed that when bolt sleeve 21 to be removed, 210 inward flange of path cylindrical hole and frictional force collective effect stop bolt
Set 21 is removed.Instrument and meter etc. is connect by connector 22 with bolt sleeve B 21, and connector 22 is a concave ring, can be corresponded to
Detain a bulge loop connection.The tubular coupling part of instrument and meter can also be covered on concave ring, be fastenedly connected with pipe collar.
Although describing the invention in detail above, but the invention is not restricted to this, those skilled in the art of the present technique
It can be carry out various modifications with principle according to the present invention.Therefore, all to be modified according to made by the principle of the invention, all it should be understood as
Fall into protection scope of the present invention.
Claims (10)
1. a kind of method for fastening electric apparatus for explosive atmospheres cavity, comprising:
Utilize equipment cover closure electrical equipment cavity；
The cover board is fastened on the electrical equipment cavity using fastening bolt；
The fastening bolt is locked or connected using locking mechanism；And
Safety protective mechanisms for fastening the locking mechanism are set on locking mechanism, for preventing the locking mechanism quilt
It arbitrarily dismantles or is connect with external devices.
2. the method according to claim 1, wherein when cover board be equipped with counterbore when, by the head of the fastening bolt
Portion is placed in the counterbore of cover board, and the locking mechanism or part are arranged in the counterbore of the cover board and described in covering
Fastening bolt；
When the fastening bolt is outer or hexagon socket head cap screw, by compressing the counterbore inner wall with retaining mechanism, realize to tight
The friction self-locking of fixing bolt；
When the fastening bolt is hexagon socket head cap screw, by compressing the fastening bolt with locking mechanism, realize to fastening spiral shell
The locking of bolt.
3. method according to claim 1 or 2, which is characterized in that, will be described when cover board is stretched out on the head of fastening bolt
Locking mechanism is arranged around the fastening bolt；
By compressing the fastening bolt with locking mechanism, the friction self-locking to fastening bolt is realized.
4. a kind of for fastening the device of electric apparatus for explosive atmospheres cavity, comprising:
For closing the equipment cover board of electrical equipment cavity；
The cover board is fastened to the fastening bolt of the electrical equipment cavity；
Characterized by further comprising:
Lock the locking mechanism of the fastening bolt；And
The safety protective mechanisms for fastening the locking mechanism, for preventing the locking mechanism from arbitrarily being dismantled or being used for and outside
Device connection.
5. device according to claim 4, which is characterized in that the fastening bolt is mounted to outer in the counterbore of cover board
Or interior hexagonal fastening bolt；
Locking mechanism covers the outer or interior hexagonal fastening bolt and includes:
It is mounted on the pipe sleeve in the counterbore and with inner conical surface that cracks；
Across the lock screw for the pipe sleeve that cracks, lower end has tapered portion, for by mutual with the internal conical surface for the pipe sleeve that cracks
Effect struts the pipe sleeve that cracks, the outer surface for the pipe sleeve that makes to crack and the counterbore surface friction self-locking；And
Positioned at slotted pipe set upper side and the clamp nut of the threaded connection lock screw；
The safety protective mechanisms include:
Or for preventing back that is that the clamp nut loosens and being threadedly coupled the lock screw female；
Or it is provided with the connector its on the lock screw head Nei with connection screw thread.
6. device according to claim 3 or 4, which is characterized in that the fastening bolt is mounted in the counterbore of cover board
Interior hexagonal fastening bolt；
The locking mechanism covers the interior hexagonal fastening bolt and includes:
The pipe sleeve that cracks being mounted in hexagon socket head cap screw head bore；
The lock-screw that connect with the slotted pipe external threading, lower end have tapered portion, for by opening with the pipe sleeve that cracks
It interacts at seam, struts the pipe sleeve that cracks, make the crack outer surface of pipe sleeve and the inner surface of interior hexagonal fastening bolt head bore
Friction self-locking；
The safety protective mechanisms include:
It is threaded in slotted pipe and covers upper inner bolt cover；
Connect the screw rod at the top of the inner bolt cover；
It is outside the inner bolt cover and make the screw rod pass through outer bolt cover；
It is threadedly coupled the screw rod, and compresses the bolt sleeve of the outer bolt cover, having on the bolt sleeve can be with other devices
The connector of connection.
7. device according to claim 4, which is characterized in that the fastening bolt is outer-hexagonal bolt, hexagon-head
Stretch out the equipment cover board；
The locking mechanism includes:
It is mounted on the pipe sleeve that cracks of outer-hexagonal bolt head；
Be mounted on outside the pipe sleeve that cracks can elastic clip, with lock-screw, for tighten it is described can elastic clip
When, the turret head of the lower part systolic pressure tightly fixing bolt for the pipe sleeve that cracks makes friction self-locking between the two；
The safety protective mechanisms include:
It is mounted on equipment cover board and covers the bolt cover of the retaining mechanism；
The connection sheet of each slotted pipe set upper side that is in the bolt cover and being connected at least two retaining mechanisms；
Tension piece in the bolt cover and that the connection sheet of each slotted pipe set upper side links together；And
The bolt for tensing piece is connected across the bolt cover, bolt is equipped with the connector for installing sensor.
8. device according to claim 4, which is characterized in that the cover board is stretched out on the head of the fastening bolt；
The locking mechanism includes:
Cover the split ring on the fastening bolt head；
The bolt sleeve with jackscrew being sleeved on the split ring, the jackscrew pass through bolt sleeve and press split ring, make to be open
Ring is contacted with the fastening bolt, generates friction self-locking effect.
9. device according to claim 4, which is characterized in that its bolt head of the fastening bolt stretches out the cover board,
Or there is the encirclement of bolt guard ring；
The locking mechanism includes:
Cover the split ring around the head of the fastening bolt or bolt guard ring；
It is mounted on the lock-screw of the opening of the split ring, for making the opening ring set by tightening the split ring
The head of the tight fastening bolt or bolt guard ring, occur friction self-locking；
The safety protective mechanisms include:
Cover the bolt cover of at least two fastening bolts or bolt guard ring and at least two locking mechanisms；
The connection sheet that two split rings of at least two locking mechanisms link together in the bolt cover；
The connecting rod of the connection connection sheet and the bolt cover in the bolt cover；And
The bolt sleeve being fixed on outside the bolt cover has the connector for connecting sensor thereon.
10. device according to claim 4, which is characterized in that the cover board is stretched out on the head of the fastening bolt；
The locking mechanism is the bolt sleeve with jackscrew covered on the head of the fastening bolt, and the jackscrew passes through described
Bolt sleeve presses the head of the fastening bolt, fastening bolt described in friction self-locking, and friction self-locking includes jackscrew or path cylinder
Aperture is to its barrier effect；
The safety protective mechanisms are that the upper cover with being structure as a whole at the top of the bolt sleeve with jackscrew offers thereon
Connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910128060.4A CN109714924B (en) | 2019-02-21 | Method and device for fastening explosion-proof electrical equipment cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910128060.4A CN109714924B (en) | 2019-02-21 | Method and device for fastening explosion-proof electrical equipment cavity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109714924A true CN109714924A (en) | 2019-05-03 |
| CN109714924B CN109714924B (en) | 2024-06-04 |
Family
ID=
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