CN211958380U - Positive pressure type explosion-proof power distribution cabinet - Google Patents
Positive pressure type explosion-proof power distribution cabinet Download PDFInfo
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- CN211958380U CN211958380U CN202021016640.9U CN202021016640U CN211958380U CN 211958380 U CN211958380 U CN 211958380U CN 202021016640 U CN202021016640 U CN 202021016640U CN 211958380 U CN211958380 U CN 211958380U
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- positive pressure
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Abstract
The utility model discloses an explosion-proof switch board of positive pressure type, include the cabinet body and install the mounting bracket at the internal portion of cabinet, install the closing plate on the both sides wall of the cabinet body, form the pressure release chamber between the lateral wall of the closing plate and the cabinet body, the pressure release hole has been seted up on the closing plate, the inside in pressure release chamber is provided with the jam piece with pressure release hole cooperation shutoff, be provided with the dead lever that runs through the air vent on the cabinet body on the lateral wall of jam piece, the end connection of dead lever has the sealed pad with the laminating of external lateral wall of cabinet. The utility model discloses in, when the internal pressure of the cabinet body was too big, the air current of the internal portion of cabinet produced the impact to the jam piece for the direction removal of pressure release hole is kept away from to the jam piece, and the removal of jam piece drives the dead lever and removes to the outside in exhaust hole, and the dead lever drives sealed the pad and removes, makes the internal portion of cabinet's pressure get into the inside in pressure release chamber through the pressure release hole, then discharges the outside of the cabinet body through the exhaust hole, stabilizes the pressure release through mechanical means.
Description
Technical Field
The utility model relates to a switch board technical field especially relates to explosion-proof switch board of positive pressure type.
Background
The distribution cabinet (case) is a final-stage device of a distribution system and is a general name of a motor control center. The power distribution cabinet is used in the occasions with dispersed loads and less loops; the motor control center is used for occasions with concentrated loads and more loops. They distribute the power of a circuit of a higher level of power distribution equipment to nearby loads, which provide protection, monitoring and control of the loads.
The explosion-proof switch board of current positive pressure type must be configured with pressure relief device, and prior art's pressure relief device utilizes the solenoid valve to carry out the pressure release usually, but this kind of pressure release mode in case break down or outage, will not carry out timely pressure release, causes the damage of block terminal easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the problem of unstable pressure relief of the electromagnetic valve of the power distribution cabinet, the positive pressure type explosion-proof power distribution cabinet is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the positive pressure type explosion-proof power distribution cabinet comprises a cabinet body and a mounting frame mounted inside the cabinet body, sealing plates are mounted on two side walls of the cabinet body, a pressure relief cavity is formed between the sealing plates and the side walls of the cabinet body, pressure relief holes are formed in the sealing plates, a blocking block matched with the pressure relief holes for blocking is arranged inside the pressure relief cavity, a fixing rod penetrating through the air relief holes in the cabinet body is arranged on the side walls of the blocking block, and the end portion of the fixing rod is connected with a sealing pad attached to the outer side wall of the cabinet body.
As a further description of the above technical solution:
and a spring is sleeved outside the fixed rod.
As a further description of the above technical solution:
the aperture of the exhaust hole is larger than the diameter of the fixed rod.
As a further description of the above technical solution:
the upper end face of the blocking block is provided with a bending rod, and the side wall of the cabinet body is provided with a press switch corresponding to the position of the bending rod.
As a further description of the above technical solution:
the inside in pressure release chamber installs the air pump, the one end of air pump is passed through the inside intercommunication of intake pipe and the cabinet body, and the other end intercommunication has the outlet duct that runs through cabinet side wall.
As a further description of the above technical solution:
the push switch is electrically connected with the air pump.
As a further description of the above technical solution:
the sealing gasket covers the exhaust holes and the pipe orifice of the air outlet pipe at the same time.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, through the pressure release hole, the jam piece, the setting of dead lever and exhaust hole, when the internal pressure of the cabinet body is too big, the air current of the internal portion of cabinet produces the impact to the jam piece, make the jam piece remove to the direction of keeping away from the pressure release hole, the removal of jam piece drives the dead lever and removes to the outside in exhaust hole, the dead lever drives sealed the pad and removes, make the internal portion's of cabinet pressure pass through the inside that the pressure release hole got into the pressure release chamber, then discharge the outside of the cabinet body through the exhaust hole, stabilize the pressure release through mechanical means.
2. The utility model discloses in, through the setting of air pump, press the switch and the pole that bends, the tip extrusion press the switch that blocks up the pole that bends that the piece pressure release in-process drives, press the switch and make the air pump start, the air pump is with the air current suction intake pipe of the internal portion of cabinet to discharge to the outside of the cabinet body through the outlet duct, realized dual pressure release effect, effectively the effect has accelerated the pressure release efficiency of the cabinet body.
Drawings
Fig. 1 shows a schematic structural view of a front view of a positive pressure type explosion-proof power distribution cabinet provided according to an embodiment of the present invention;
fig. 2 shows an enlarged structural schematic diagram of a part a of a positive pressure type explosion-proof power distribution cabinet provided according to an embodiment of the present invention;
illustration of the drawings:
1. a cabinet body; 101. an exhaust hole; 2. a mounting frame; 3. a sealing plate; 301. a pressure relief vent; 4. a pressure relief cavity; 5. fixing the rod; 6. a gasket; 7. a spring; 8. a push switch; 9. bending the rod; 10. an air pump; 11. an air inlet pipe; 12. an air outlet pipe; 13. and (6) blocking the block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: positive pressure type explosion-proof switch board, including the cabinet body 1 and install at the internal portion of cabinet mounting bracket 2, install closing plate 3 on the both sides wall of the cabinet body 1, form pressure release chamber 4 between closing plate 3 and the lateral wall of the cabinet body 1, pressure release hole 301 has been seted up on closing plate 3, be convenient for the inside atmospheric pressure of the cabinet body 1 excretes in pressure release chamber 4 through pressure release hole 301, reach the pressure release effect, pressure release chamber 4's inside is provided with the jam block 13 with pressure release hole 301 cooperation shutoff, be provided with the dead lever 5 that runs through exhaust hole 101 on the cabinet body 1 on the lateral wall of jam block 13, the end connection of dead lever 5 has the sealed pad 6 with the laminating of the 1 lateral wall of the cabinet body, sealed pad 6 can prevent that the rainwater from the inside.
Specifically, as shown in fig. 2, the spring 7 is sleeved outside the fixing rod 5, so that after the cabinet 1 is depressurized, the pressure relief hole 301 is blocked again by the blocking block 13 under the reset action of the spring 7, and meanwhile, the exhaust hole 101 and the air outlet pipe 12 are simultaneously blocked by the sealing gasket 6.
Specifically, as shown in fig. 1, the diameter of the vent hole 101 is larger than the diameter of the fixing rod 5, so that the gas inside the pressure relief chamber 4 is discharged to the outside through the vent hole 101.
Specifically, as shown in fig. 2, the internal installation of the pressure relief cavity 4 has an air pump 10, one end of the air pump 10 is communicated with the inside of the cabinet body 1 through an air inlet pipe 11, and the other end of the air pump is communicated with an air outlet pipe 12 penetrating through the side wall of the cabinet body 1, so that the air flow in the internal part of the cabinet body 1 is pumped into the air inlet pipe 11 under the action of the air pump 10, and is discharged to the external part of the cabinet body 1 through the air outlet pipe.
Specifically, as shown in fig. 2, a bending rod 9 is disposed on an upper end surface of the blocking block 13, a push switch 8 corresponding to the bending rod 9 is mounted on a side wall of the cabinet 1, and the push switch 8 is electrically connected to the air pump 10, so that opening and closing of the push switch 8 directly controls opening and closing of the air pump 10.
Specifically, as shown in fig. 1, the gasket 6 covers both the exhaust hole 101 and the mouth of the outlet pipe 12.
The working principle is as follows: when the pressure relief cabinet is used, when the internal pressure of the cabinet body 1 is too high, airflow inside the cabinet body 1 impacts the blocking block 13, so that the blocking block 13 moves towards the direction far away from the pressure relief hole 301, the movement of the blocking block 13 drives the fixing rod 5 to move towards the outside of the exhaust hole 101, the spring 7 is compressed, the fixing rod 5 drives the sealing gasket 6 to move towards the direction far away from the pipe orifices of the exhaust hole 101 and the air outlet pipe 12, the internal pressure of the cabinet body 1 enters the inside of the pressure relief cavity 4 through the pressure relief hole 301, then is discharged to the outside of the cabinet body 1 through the exhaust hole 101, and stable pressure relief is performed in a mechanical; simultaneously 13 pressure release in-process of jam block drive the tip extrusion press switch 8 of bending pole 9, press switch 8 makes air pump 10 start, and air pump 10 is with the inside air current suction intake pipe 11 of the cabinet body 1 to discharge to the outside of the cabinet body 1 through outlet duct 12, realized dual pressure release effect, effectively accelerated the pressure release efficiency of the cabinet body 1.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The positive pressure type explosion-proof power distribution cabinet comprises a cabinet body (1) and a mounting frame (2) mounted inside the cabinet body (1), and is characterized in that sealing plates (3) are mounted on two side walls of the cabinet body (1), a pressure relief cavity (4) is formed between the sealing plates (3) and the side wall of the cabinet body (1), pressure relief holes (301) are formed in the sealing plates (3), plugging blocks (13) matched with the pressure relief holes (301) for plugging are arranged inside the pressure relief cavities (4), fixing rods (5) penetrating through air vents (101) in the cabinet body (1) are arranged on the side walls of the plugging blocks (13), and end portions of the fixing rods (5) are connected with sealing gaskets (6) attached to the outer side wall of the cabinet body (1).
2. The explosion-proof switch board of positive pressure type of claim 1, characterized in that the outside cover of dead lever (5) is equipped with spring (7).
3. The explosion-proof switch board of positive pressure type of claim 1, characterized in that, the aperture of the exhaust hole (101) is greater than the diameter of the dead lever (5).
4. The positive pressure type explosion-proof power distribution cabinet according to claim 1, wherein a bending rod (9) is arranged on the upper end face of the blocking block (13), and a push switch (8) corresponding to the bending rod (9) is mounted on the side wall of the cabinet body (1).
5. The positive pressure type explosion-proof power distribution cabinet according to claim 4, wherein an air pump (10) is installed inside the pressure relief cavity (4), one end of the air pump (10) is communicated with the inside of the cabinet body (1) through an air inlet pipe (11), and the other end of the air pump is communicated with an air outlet pipe (12) penetrating through the side wall of the cabinet body (1).
6. The explosion-proof switch board of positive pressure type according to claim 5, characterized in that, push switch (8) and air pump (10) electric connection.
7. The explosion-proof switch board of positive pressure type according to claim 1, characterized in that the sealing gasket (6) covers the mouth of the exhaust hole (101) and the outlet pipe (12) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021016640.9U CN211958380U (en) | 2020-06-05 | 2020-06-05 | Positive pressure type explosion-proof power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021016640.9U CN211958380U (en) | 2020-06-05 | 2020-06-05 | Positive pressure type explosion-proof power distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211958380U true CN211958380U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021016640.9U Active CN211958380U (en) | 2020-06-05 | 2020-06-05 | Positive pressure type explosion-proof power distribution cabinet |
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| Country | Link |
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| CN (1) | CN211958380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113193492A (en) * | 2021-05-14 | 2021-07-30 | 国家电网有限公司 | Switch cabinet with pressure relief protection function |
-
2020
- 2020-06-05 CN CN202021016640.9U patent/CN211958380U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113193492A (en) * | 2021-05-14 | 2021-07-30 | 国家电网有限公司 | Switch cabinet with pressure relief protection function |
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