CN212183672U - Explosion-proof switch - Google Patents
Explosion-proof switch Download PDFInfo
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- CN212183672U CN212183672U CN202021435509.6U CN202021435509U CN212183672U CN 212183672 U CN212183672 U CN 212183672U CN 202021435509 U CN202021435509 U CN 202021435509U CN 212183672 U CN212183672 U CN 212183672U
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Abstract
The utility model discloses an explosion-proof switch, including explosion-proof casing, the switch electrical power generating mechanism of setting in explosion-proof casing, explosion-proof casing is equipped with the end bracket, the casing main part, be equipped with the installation cavity in the casing main part, installation cavity down, be equipped with the cavity of wearing terminal in the casing main part, the cable draw-in device, the installation cavity sets up switch electrical power generating mechanism down, a transformer, the group battery, this ampere of power is installed on power core mounting panel, still be equipped with the power management board on the power core mounting panel, the transformer is connected with the switching power supply electricity, switching power supply is connected with the power management board electricity, the power management board respectively with the group battery, this ampere of. The device casing main part leakproofness is good, and dampproofing explosion-proof performance is good, and it is long when its switch supply mechanism can improve the power supply, satisfies the needs that the power failure does not cut the net.
Description
Technical Field
The utility model relates to a switch is exactly an explosion-proof switch.
Background
A Switch means a "Switch" is a network device used for electrical (optical) signal forwarding. It can provide an exclusive electrical signal path for any two network nodes accessing the switch, the most common switch is an ethernet switch, and other common switches are a telephone voice switch, an optical fiber switch and the like.
The existing switch power supply has the following defects:
1. the power supply time of the standby battery is short, and the technical requirement of power failure and network outage of a mine cannot be met;
2. the original power supply does not have two supply voltages of 127V and 660V;
3. the power management board has no remote management function and does not support remote charging and discharging;
4. the power supply is not provided with matched remote management software;
5. the power supply does not have 12V intrinsic safety power supply output.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an explosion-proof switch, the device casing main part leakproofness is good, and dampproofing explosion-proof performance is good, and it is long when its switch supply mechanism can improve the power supply, satisfies the needs that the power failure does not shut down the net, has two kinds of supply voltage of 127 and 660V and 12V intrinsic safety power output, realizes remote management control through setting up the power management board.
In order to solve the above technical problem, the utility model discloses a following technical means:
an explosion-proof switch comprises an explosion-proof shell and a switch power supply mechanism arranged in the explosion-proof shell, wherein the explosion-proof shell is provided with a bottom bracket and a shell main body arranged on the bottom bracket, an upper installation cavity and a lower installation cavity are arranged in the shell main body, and a ten-thousand-million switch and an intrinsic safety network board are arranged in the upper installation cavity; the shell body is provided with a cavity penetrating terminal and a cable leading-in device, and a cable penetrates through the shell body through the cavity penetrating terminal and the cable leading-in device; the lower installation cavity is provided with a switch power supply mechanism, the switch power supply mechanism is provided with a transformer, a battery pack and an intrinsic safety power supply, the transformer, the battery pack and the intrinsic safety power supply are installed on a power supply core installation plate, a power supply management plate is further arranged on the power supply core installation plate and is electrically connected with a switching power supply, the switching power supply is electrically connected with the power supply management plate, the power supply management plate is respectively electrically connected with the battery pack and the intrinsic safety power supply, the transformer selects and inputs 127V or 660V, 127V alternating current is output to the switching power supply, 36V direct current is output to the power supply management plate after the switching power supply is adjusted in voltage, the power supply management plate outputs one path of 48V direct current and one path of 12V intrinsic safety power supply after voltage boosting.
Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, its outstanding characteristics are:
the bottom bracket and the shell body are arranged, so that the shell body is conveniently supported by the bottom bracket and is supported, and the shell body is prevented from being wetted; an upper mounting cavity and a lower mounting cavity are arranged in the shell body, so that related parts can be conveniently arranged in a layered mode, and the related parts can be conveniently arranged and maintained; the cavity penetrating terminal and the cable lead-in device are convenient for connecting cables; the transformer can supply power and input through a 127V or 660V power supply, 127V alternating current is output to the switching power supply, the switching power supply can output 36V direct current to the power management board after voltage regulation, and the power management board outputs one path of 48V direct current and one path of 12V intrinsic safety power supply after voltage boosting and voltage reducing processing to supply power for the ten-gigabit switch and the intrinsic safety network board. The power management board also has a battery management function, can realize automatic switching of the standby power supply after alternating current power failure, and can remotely check power supply and battery parameters through a network to perform remote charging and discharging management. The wiring terminal can be divided into 127V or 660V power supply access, and the field construction operation is convenient. The whole position of power arranges compactly, satisfies flame proof and the requirement of this ampere of power electrical clearance, and the inner space of make full use of's casing is easy to assemble and overhaul.
The further preferred technical scheme is as follows:
the front side of casing main part be equipped with upper cabinet door, the lower cabinet door that sets up from top to bottom, upper cabinet door, lower cabinet door pass through the articulated shaft with the casing main part respectively and are connected, the side of upper cabinet door, lower cabinet door is equipped with the handle, upper cabinet door, lower cabinet door correspond last installation cavity, the lower installation cavity in the casing respectively, are equipped with the observation window on the upper cabinet door, are equipped with cable introducing device on the lateral wall of casing main part, cable introducing device sets up in a row, two relative side symmetries in top of casing main part are equipped with hoist and mount hook.
The front side surface of the shell body is provided with an upper cabinet door and a lower cabinet door which are hinged, so that the shell body can be conveniently rotated and opened, and components in the shell body can be maintained; in addition, the upper cabinet door and the lower cabinet door respectively correspond to an upper mounting cavity and a lower mounting cavity in the shell; an observation window is arranged on the upper cabinet door, so that the core components in the upper mounting cavity can be observed conveniently by using the observation window; the cable leading-in devices are arranged in rows, so that wiring or disassembling of the wiring through the cable leading-in devices is facilitated, and the use is facilitated; two opposite sides in top of casing main part are equipped with the hoist and mount hook, make things convenient for the hoist and mount installation and the dismantlement of this device.
The cavity penetrating terminal is provided with a bolt fastening mechanism and a terminal main body, the terminal main body is provided with a binding post and an insulating liner, the mounting base plate is provided with a hole, the binding post is inserted into one side of the mounting base plate and extends out of the other side of the mounting base plate, the part of the binding post extending out of the other side of the mounting base plate is provided with the insulating liner, the contact surface between the binding post and the mounting base is an explosion-proof joint surface, the binding post is provided with a fixing table, a stop sheet is arranged on the mounting base plate, one end of the stop sheet is provided with a fixing head, a stop slot is.
By arranging the terminal main body, the binding post of the terminal main body is connected with the mounting bottom plate to form sealing, and the joint surface of the binding post and the mounting bottom plate is an explosion-proof joint surface, so that the sealing explosion-proof effect is improved; through setting up the locking plate, utilize one end grafting of locking plate to become good fixed to the terminal post in the locking slot, in addition the bolt-up mechanism's is fixed of screwing, makes this device fixed firm, effectively prevents to become flexible, and explosion-proof sealing performance is high.
The bolt fastening mechanism is provided with an upper bolt fastening mechanism and a lower bolt fastening mechanism, and the upper bolt fastening mechanism and the lower bolt fastening mechanism are respectively arranged at the upper end and the lower end of the terminal main body; the upper bolt fastening mechanism and the lower bolt fastening mechanism are both provided with an outer nut and an inner nut, and elastic pads are arranged between the outer nut and the inner nut; the upper bolt fastening mechanism is provided with an upper arched washer and a lower arched washer which are matched and fixed with each other between the elastic pad and the inner nut; the upper bolt fastening mechanism is provided with a flat gasket between the inner nut and the mounting bottom plate.
Through setting up bolt-up mechanism, bolt-up mechanism down and make things convenient for the wiring firstly, secondly the convenience is to the further screwing of terminal main part, compress tightly fixedly. Through setting up interior nut, outer nut and bullet pad, increase bolt-up mechanism fastening performance, prevent that bolt-up mechanism bolt from becoming flexible. Through setting up bow-shaped packing ring, lower bow-shaped packing ring, two packing rings cooperate and the effect of bullet pad in addition, further prevent that bolt fastening device's bolt is not hard up. By arranging the flat pad, firstly, the stress area of the mounting bottom plate is increased, and the stress surface of the mounting bottom plate is prevented from sinking to influence fixation; in addition, the added flat cushion further increases the sealing and explosion-proof effects.
The transformer is electrically connected with the wiring terminal, and the wiring terminal is arranged on the power core mounting plate; the connecting terminal is provided with two power interfaces of 127V or 660V.
Through setting up binding post, the transformer power input of being convenient for. Through setting up two kinds of power source interface, further make things convenient for the selection and the connection of power input.
The bottom bracket is provided with a vertical support, the side wall plate of the shell main body is connected and fixed on the vertical support, and a space is arranged between the bottom surface of the shell main body and the bottom bracket; an explosion-proof protection bracket is fixed on the outer side surface of the shell body; the anti-explosion protection bracket is transversely and longitudinally arranged in a crossed manner and is arranged in a # -shaped device.
Through setting up explosion-proof protective cradle, further increase casing main part atress bearing capacity, increase its fastness. The support protection of the explosion-proof protection bracket to the shell body is further increased through the transverse and longitudinal cross arrangement.
The cable leading-in device be equipped with gland nut, UNICOM festival, the one end and the cavity steel sheet of UNICOM festival are connected fixedly, gland nut is connected to the other end of UNICOM festival, be equipped with the shutoff part that can take out in the cavity that is linked together of gland nut and UNICOM festival, the UNICOM festival is equipped with the connection chamber of in-band screw thread, gland nut is equipped with the connection chamber of outband screw thread, gland nut's one end and UNICOM festival threaded connection, the junction of gland nut and UNICOM festival is equipped with the shutoff part, the shutoff part seals the UNICOM festival.
By arranging the removable plugging component, when the wire cable is used in a connection state, the plugging component is taken off, the cable is connected and the compression nut is screwed, so that the cable is fixed and sealed; after the cable is disassembled, the plugging component is installed again, then the compression nut is screwed, and the explosion suppression during no-load is realized by the plugging component.
The sealing part is provided with a sealing ring, the sealing ring is a rubber sealing ring, the outer diameter of the sealing ring corresponds to the inner diameter of the communicating joint, one end of the sealing ring is closed, the other end of the sealing ring is opened, the closed end of the sealing ring faces the cavity steel plate, and the open end of the sealing ring faces the compression nut; the plugging component is further provided with a steel plug which is arranged between the sealing ring and the compression nut, and the communicating joint is welded with the cavity steel plate.
Through setting up the sealing washer, be convenient for utilize the sealing washer to seal UNICOM festival and gland nut's cavity. Through setting up the steel end cap, be convenient for utilize steel end cap and sealing washer cooperation, form better sealing performance. And the connection stability between the communication joint and the cavity steel plate is high due to welding connection.
The steel end cap is T-shaped, the top end portion of the steel end cap faces the compression nut, and the bottom end portion of the steel end cap is inserted in the sealing ring to enable the outer side wall of the sealing ring to be in close contact with the inner side wall of the communicating joint.
The steel plug arranged in the shape is convenient to be matched with the sealing ring to form good sealing.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a sectional view of the cable introduction device of the present invention.
Fig. 3 is a schematic diagram of the structure of the power supply mechanism of the switch.
Fig. 4 is a schematic circuit connection diagram of fig. 3.
Fig. 5 is a half sectional view of the through cavity terminal.
Fig. 6 is a cross-sectional view of the explosion-proof exchanger of the present invention.
Description of reference numerals: 1-a bottom bracket; 2-a ground stud; 3-a cable lead-in device; 4-hoisting hook; 5-an observation window; 6-label; 7-a warning board; 8-a handle; 9-a hinged axis; 10-a compression nut; 11-a metal gasket; 12-steel plugs; 13-sealing ring; 14-Unicom node; 15-cavity steel plate; 16-a transformer; 17-a battery pack; 18-intrinsically safe power supply; 19-a switching power supply; 20-power management board; 21-power core mounting plate; 22-a connection terminal; 23-external nut; 24-a spring pad; 25-upper arcuate washer; 26-lower arcuate washer; 27-an internal nut; 28-flat cushion; 29-terminal post; 30-a stop tab; 31-an insulating spacer; 32-enlarged washer; 33-mounting a base plate; 34-explosion-proof interface.
Detailed Description
The present invention will be further described with reference to the following examples.
As can be seen from fig. 1, 2 and 6, the explosion-proof switch of the present invention comprises an explosion-proof housing and a switch power supply mechanism disposed in the explosion-proof housing; the explosion-proof shell is provided with a bottom bracket 1 and a shell main body arranged on the bottom bracket 1, wherein an upper installation cavity and a lower installation cavity are arranged in the shell main body, and a gigabit switch and an intrinsic safety network board are arranged in the upper installation cavity; the shell body is provided with a cavity penetrating terminal and a cable lead-in device 3, and a cable penetrates through the shell body through the cavity penetrating terminal and the cable lead-in device 3; the lower installation cavity is provided with a switch power supply mechanism, the switch power supply mechanism is provided with a transformer 16, a battery pack 17 and an intrinsic safety power supply 18, the transformer 16, the battery pack 17 and the intrinsic safety power supply 18 are installed on a power supply core installation plate 21, a power supply management plate 20 is further arranged on the power supply core installation plate 21, the transformer 16 is electrically connected with a switching power supply 19, the switching power supply 19 is electrically connected with the power supply management plate 20, the power supply management plate 20 is respectively electrically connected with the battery pack 17 and the intrinsic safety power supply 18, the transformer 16 selectively inputs 127V or 660V, outputs 127V alternating current to the switching power supply 19, outputs 36V direct current to the power supply management plate 20 after voltage regulation of the switching power supply 19, and outputs one path of 48V direct current and one path of 12V intrinsic safety power supply 18 after voltage boosting and reducing processing of the power.
By arranging the bottom bracket 1 and the shell body, the shell body can be conveniently supported by the bottom bracket 1, and the shell body is supported to prevent the shell body from being wetted; an upper mounting cavity and a lower mounting cavity are arranged in the shell body, so that related parts can be conveniently arranged in a layered mode, and the related parts can be conveniently arranged and maintained; the cavity penetrating terminal and the cable lead-in device 3 are convenient for connecting cables; the transformer 16 can supply power and input through a 127V or 660V power supply, 127V alternating current is output to the switching power supply 19, the switching power supply 19 can output 36V direct current to the power management board 20 after voltage regulation, and the power management board 20 outputs a path of 48V direct current and a path of 12V intrinsic safety power supply 18 after voltage boosting and voltage reduction processing to supply power for a ten-million switches and intrinsic safety network boards. The power management board 20 further has a battery management function, so that after the alternating current power failure, the standby power supply can be automatically switched, and the power supply and battery parameters can be remotely checked through a network to perform remote charging and discharging management. The connecting terminal 22 can be connected with a 127V power supply or a 660V power supply, so that the field construction operation is convenient. The whole position of the power supply is compactly arranged, the requirements of 18 electrical gaps of the explosion-proof and intrinsic safety power supplies are met, the internal space of the shell is fully utilized, and the installation and the maintenance are convenient.
An upper cabinet door and a lower cabinet door which are arranged up and down are arranged on the front side face of the shell main body, the upper cabinet door and the lower cabinet door are respectively hinged with the shell main body through a hinge shaft 9, handles 8 are arranged on the side edges of the upper cabinet door and the lower cabinet door, the upper cabinet door and the lower cabinet door respectively correspond to an upper installation cavity and a lower installation cavity in the shell, an observation window 5 is arranged on the upper cabinet door, cable introducing devices 3 are arranged on the side wall of the shell main body, the cable introducing devices 3 are arranged in rows, and two opposite side faces of the top of the shell main body are; the side wall of the shell body is also provided with a grounding stud 2, a label 6 and a warning plate 7 so as to facilitate grounding wires and marking the device and making warning marks.
The front side surface of the shell body is provided with an upper cabinet door and a lower cabinet door which are hinged, so that the shell body can be conveniently rotated and opened, and components in the shell body can be maintained; in addition, the upper cabinet door and the lower cabinet door respectively correspond to an upper mounting cavity and a lower mounting cavity in the shell; an observation window 5 is arranged on the upper cabinet door, so that the core components in the upper installation cavity can be observed conveniently by using the observation window 5; the cable leading-in devices 3 are arranged in rows, so that wiring or disassembling of the wiring is facilitated through the cable leading-in devices 3, and the use is facilitated; two opposite sides in top of casing main part are equipped with hoist and mount hook 4 symmetrically, make things convenient for hoist and mount installation and the dismantlement of this device.
Referring to fig. 5, the cavity-penetrating terminal is provided with a bolt fastening mechanism and a terminal main body, the terminal main body is provided with a terminal 29 and an insulating gasket 31, an opening is formed in an installation bottom plate 33, the terminal 29 is inserted into one side of the installation bottom plate 33 and extends out of the other side of the installation bottom plate 33, the insulating gasket 31 is arranged on the part of the terminal 29 extending out of the other side of the installation bottom plate 33, contact surfaces between the terminal 29 and the installation bottom are all explosion-proof joint surfaces 34, the terminal 29 is provided with a fixing table, a stop sheet 30 is arranged on the installation bottom plate 33, one end of the stop sheet 30 is provided with a fixing head, a stop slot is arranged on the installation bottom.
By arranging the terminal main body, the binding post 29 of the terminal main body is connected with the mounting bottom plate 33 to form sealing, and the joint surface of the binding post 29 and the mounting bottom plate 33 is an explosion-proof joint surface 34, so that the sealing explosion-proof effect is improved; through the arrangement of the stop sheet 30, one end of the stop sheet 30 is inserted into the stop slot to form good fixation on the wiring terminal 29, and the bolt fastening mechanism is screwed and fixed, so that the device is firmly fixed, effectively prevented from loosening and high in explosion-proof sealing performance.
The bolt fastening mechanism is provided with an upper bolt fastening mechanism and a lower bolt fastening mechanism, and the upper bolt fastening mechanism and the lower bolt fastening mechanism are respectively arranged at the upper end and the lower end of the terminal main body; the upper bolt fastening mechanism and the lower bolt fastening mechanism are both provided with an outer nut 23 and an inner nut 27, and elastic pads 24 are arranged between the outer nut 23 and the inner nut 27; the upper bolt fastening mechanism is provided with an upper arched washer 25 and a lower arched washer 26 which are matched and fixed with each other between the elastic pad 24 and the inner nut 27; the upper bolt tightening mechanism is provided with a flat washer 28 between the inner nut 27 and the mounting baseplate 33. The lower bolt tightening mechanism is provided with an enlarged washer 32 between the elastic pad 24 and the insulating spacer 31.
Through setting up bolt-up mechanism, bolt-up mechanism down and make things convenient for the wiring firstly, secondly the convenience is to the further screwing of terminal main part, compress tightly fixedly. By arranging the inner nut 27, the outer nut 23 and the elastic pad 24, the fastening performance of the bolt fastening mechanism is improved, and the bolt of the bolt fastening mechanism is prevented from loosening. The bolt of the bolt fastening mechanism is further prevented from loosening by the arrangement of the upper bow washer 25 and the lower bow washer 26, which cooperate together with the action of the spring washer 24. By arranging the flat pad 28, firstly, the stress area of the mounting bottom plate 33 is increased, and the stress surface is prevented from sinking to influence fixation; in addition, the added flat cushion 28 further increases the sealing and explosion-proof effect.
As can be seen from fig. 3 and 4, the transformer 16 is electrically connected to the connection terminal 22, and the connection terminal 22 is disposed on the power core mounting plate 21; the connection terminal 22 is provided with two power interfaces of 127V or 660V.
The transformer 16 power input is facilitated by the provision of the terminals 22. Through setting up two kinds of power source interface, further make things convenient for the selection and the connection of power input.
A vertical support is arranged on the bottom bracket 1, a side wall plate of the shell main body is fixedly connected with the vertical support, and a space is arranged between the bottom surface of the shell main body and the bottom bracket 1; an explosion-proof protection bracket is fixed on the outer side surface of the shell body; the anti-explosion protection bracket is transversely and longitudinally arranged in a crossed manner and is arranged in a # -shaped device.
Through setting up explosion-proof protective cradle, further increase casing main part atress bearing capacity, increase its fastness. The support protection of the explosion-proof protection bracket to the shell body is further increased through the transverse and longitudinal cross arrangement.
Referring to fig. 2, the cable lead-in device 3 is provided with a compression nut 10 and a communication joint 14, one end of the communication joint 14 is fixedly connected with a cavity steel plate 15, the other end of the communication joint is connected with the compression nut 10, a removable plugging component is arranged in a cavity communicated with the compression nut 10 and the communication joint 14, a metal washer 11 is arranged between the plugging component and the compression nut 10, the communication joint 14 is provided with a connecting cavity with an internal thread, the compression nut 10 is provided with a connecting cavity with an external thread, one end of the compression nut 10 is in threaded connection with the communication joint 14, a plugging component is arranged at the joint of the compression nut 10 and the communication joint 14, and the plugging component seals the communication joint 14.
By arranging the removable plugging component, when the wire cable is used in a connection state, the plugging component is taken off, the cable is connected and the compression nut 10 is screwed, so that the cable is fixed and sealed; after the cable is disassembled, the plugging component is installed again, then the compression nut 10 is screwed, and the explosion suppression in no-load is realized by the plugging component.
The sealing part is provided with a sealing ring 13, the sealing ring 13 is a rubber sealing ring 13, the outer diameter of the sealing ring 13 corresponds to the inner diameter of the communicating joint 14, one end of the sealing ring 13 is closed, the other end of the sealing ring 13 is opened, the closed end of the sealing ring 13 faces the cavity steel plate 15, and the open end of the sealing ring 13 faces the compression nut 10; the plugging component is further provided with a steel plug 12, the steel plug 12 is arranged between the sealing ring 13 and the compression nut 10, and the communication joint 14 is connected with the cavity steel plate 15 in a welding mode.
By arranging the sealing ring 13, the cavity of the communicating joint 14 and the compression nut 10 can be conveniently sealed by the sealing ring 13. By arranging the steel plug 12, the steel plug 12 is convenient to be matched with the sealing ring 13, and better sealing performance is formed. And the connection stability between the communication joint 14 and the cavity steel plate 15 is strong due to welding connection.
The steel plug 12 is in a T shape, the top end portion of the steel plug faces the compression nut 10, and the bottom end portion of the steel plug is inserted into the sealing ring 13, so that the outer side wall of the sealing ring 13 is in close contact with the inner side wall of the communication joint 14.
The steel plug 12 with the shape is convenient to be matched with the sealing ring 13 to form good sealing.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.
Claims (9)
1. The utility model provides an explosion-proof switch, includes explosion-proof casing, sets up the switch supply mechanism in explosion-proof casing, its characterized in that:
the explosion-proof shell is provided with a bottom bracket and a shell main body arranged on the bottom bracket, an upper installation cavity and a lower installation cavity are arranged in the shell main body, and a trillion switch and an intrinsic safety network board are arranged in the upper installation cavity; the shell body is provided with a cavity penetrating terminal and a cable leading-in device, and a cable penetrates through the shell body through the cavity penetrating terminal and the cable leading-in device; the lower installation cavity is provided with a switch power supply mechanism, the switch power supply mechanism is provided with a transformer, a battery pack and an intrinsic safety power supply, the transformer, the battery pack and the intrinsic safety power supply are installed on a power supply core installation plate, a power supply management plate is further arranged on the power supply core installation plate and is electrically connected with a switching power supply, the switching power supply is electrically connected with the power supply management plate, the power supply management plate is respectively electrically connected with the battery pack and the intrinsic safety power supply, the transformer selects and inputs 127V or 660V, 127V alternating current is output to the switching power supply, 36V direct current is output to the power supply management plate after the switching power supply is adjusted in voltage, the power supply management plate outputs one path of 48V direct current and one path of 12V intrinsic safety power supply after voltage boosting.
2. The explosion proof switch of claim 1, wherein: the front side of casing main part be equipped with upper cabinet door, the lower cabinet door that sets up from top to bottom, upper cabinet door, lower cabinet door pass through the articulated shaft with the casing main part respectively and are connected, the side of upper cabinet door, lower cabinet door is equipped with the handle, upper cabinet door, lower cabinet door correspond last installation cavity, the lower installation cavity in the casing respectively, are equipped with the observation window on the upper cabinet door, are equipped with cable introducing device on the lateral wall of casing main part, cable introducing device sets up in a row, two relative side symmetries in top of casing main part are equipped with hoist and mount hook.
3. The explosion proof switch of claim 1, wherein: the cavity penetrating terminal is provided with a bolt fastening mechanism and a terminal main body, the terminal main body is provided with a binding post and an insulating liner, the mounting base plate is provided with a hole, the binding post is inserted into one side of the mounting base plate and extends out of the other side of the mounting base plate, the part of the binding post extending out of the other side of the mounting base plate is provided with the insulating liner, the contact surface between the binding post and the mounting base is an explosion-proof joint surface, the binding post is provided with a fixing table, a stop sheet is arranged on the mounting base plate, one end of the stop sheet is provided with a fixing head, a stop slot is.
4. The explosion proof switch of claim 3, wherein: the bolt fastening mechanism is provided with an upper bolt fastening mechanism and a lower bolt fastening mechanism, and the upper bolt fastening mechanism and the lower bolt fastening mechanism are respectively arranged at the upper end and the lower end of the terminal main body; the upper bolt fastening mechanism and the lower bolt fastening mechanism are both provided with an outer nut and an inner nut, and elastic pads are arranged between the outer nut and the inner nut; the upper bolt fastening mechanism is provided with an upper arched washer and a lower arched washer which are matched and fixed with each other between the elastic pad and the inner nut; the upper bolt fastening mechanism is provided with a flat gasket between the inner nut and the mounting bottom plate.
5. The explosion proof switch of claim 1, wherein: the transformer is electrically connected with the wiring terminal, and the wiring terminal is arranged on the power core mounting plate; the connecting terminal is provided with two power interfaces of 127V or 660V.
6. The explosion proof switch of claim 1, wherein: the bottom bracket is provided with a vertical support, the side wall plate of the shell main body is connected and fixed on the vertical support, and a space is arranged between the bottom surface of the shell main body and the bottom bracket; an explosion-proof protection bracket is fixed on the outer side surface of the shell body; the anti-explosion protection bracket is transversely and longitudinally arranged in a crossed manner and is arranged in a # -shaped device.
7. The explosion proof switch of claim 1, wherein: the cable leading-in device be equipped with gland nut, UNICOM festival, the one end and the cavity steel sheet of UNICOM festival are connected fixedly, gland nut is connected to the other end of UNICOM festival, be equipped with the shutoff part that can take out in the cavity that is linked together of gland nut and UNICOM festival, the UNICOM festival is equipped with the connection chamber of in-band screw thread, gland nut is equipped with the connection chamber of outband screw thread, gland nut's one end and UNICOM festival threaded connection, the junction of gland nut and UNICOM festival is equipped with the shutoff part, the shutoff part seals the UNICOM festival.
8. The explosion proof switch of claim 7, wherein: the sealing part is provided with a sealing ring, the sealing ring is a rubber sealing ring, the outer diameter of the sealing ring corresponds to the inner diameter of the communicating joint, one end of the sealing ring is closed, the other end of the sealing ring is opened, the closed end of the sealing ring faces the cavity steel plate, and the open end of the sealing ring faces the compression nut; the plugging component is further provided with a steel plug which is arranged between the sealing ring and the compression nut, and the communicating joint is welded with the cavity steel plate.
9. The explosion proof switch of claim 8, wherein: the steel end cap is T-shaped, the top end portion of the steel end cap faces the compression nut, and the bottom end portion of the steel end cap is inserted in the sealing ring to enable the outer side wall of the sealing ring to be in close contact with the inner side wall of the communicating joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021435509.6U CN212183672U (en) | 2020-07-21 | 2020-07-21 | Explosion-proof switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021435509.6U CN212183672U (en) | 2020-07-21 | 2020-07-21 | Explosion-proof switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212183672U true CN212183672U (en) | 2020-12-18 |
Family
ID=73762095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021435509.6U Active CN212183672U (en) | 2020-07-21 | 2020-07-21 | Explosion-proof switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212183672U (en) |
-
2020
- 2020-07-21 CN CN202021435509.6U patent/CN212183672U/en active Active
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