CN210404536U - Ring main unit convenient to pressure release - Google Patents
Ring main unit convenient to pressure release Download PDFInfo
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- CN210404536U CN210404536U CN201921416444.8U CN201921416444U CN210404536U CN 210404536 U CN210404536 U CN 210404536U CN 201921416444 U CN201921416444 U CN 201921416444U CN 210404536 U CN210404536 U CN 210404536U
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- pressure relief
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Abstract
The utility model discloses a looped netowrk cabinet convenient to pressure release, including the cabinet body and switch module, be provided with the pressure release passageway on the lateral wall of the cabinet body, be provided with the pressure release board on the pressure release passageway, the pressure release board is provided with the slot on being close to the terminal surface of internal chamber of cabinet, be provided with the storage tank with pressure release board looks adaptation in the below of pressure release passageway on the lateral wall of the cabinet body, switch module is including setting up the supporting seat on the internal chamber of cabinet, rotationally be provided with the connecting rod on the supporting seat, the one end that corresponds the slot on the connecting rod is provided with the inserted bar, the inserted bar is inserted. The utility model discloses a looped netowrk cabinet convenient to pressure release has simple structure, pressure release in time and can used repeatedly's advantage.
Description
Technical Field
The utility model belongs to the technical field of power equipment, concretely relates to looped netowrk cabinet convenient to pressure release.
Background
The ring main unit is an electric device which is formed by installing a group of transmission and distribution electric devices (high-voltage switch devices) in the main body of the ring main unit or manufacturing the transmission and distribution electric devices into an assembled interval ring main unit, and the core part of the ring main unit adopts a load switch and a fuse. The transformer substation is widely applied to distribution stations and box-type substations of load centers of urban residential districts, high-rise buildings, large public buildings, factory enterprises and the like.
The current looped netowrk cabinet is at the practical application in-process, in case the electric arc trouble appears in the cabinet body, the internal portion of cabinet gas pressure promotes suddenly, and gas can strike each direction of the cabinet body, and high-pressure gas not only causes the destruction to the equipment in the looped netowrk cabinet easily, and the danger of explosion also probably appears, consequently need install pressure relief device, can make gas discharge from pressure relief device's pressure release mouth rapidly.
The pressure relief device of the existing ring main unit is shown in fig. 1, the ring main unit is provided with a pressure relief channel on a side wall 1 of the ring main unit, the pressure relief channel is provided with a metal closing plate 2, the upper end of the closing plate 2 is connected with the side wall 2 of the ring main unit through a metal screw 3, the lower end of the closing plate is connected through a plastic screw 4, during pressure relief, high-pressure gas generated inside the cabinet body causes huge impact force to the closing plate 2, and then the plastic screw 4 is broken, the channel is opened in time, the high-temperature high-pressure gas inside the cabinet body is released, and the.
However, the existing pressure relief devices have some disadvantages:
a. the plastic screw 4 is easy to age, and can influence the original function of the plastic screw, so that the pressure relief function of the pressure relief device is influenced;
b. in addition, the requirement on the quality of the plastic screw 4 is high, the strength of the plastic screw 4 is too high, so that the whole closing plate 2 cannot be opened, and the strength of the plastic screw 4 is too low, so that the plastic screw can be broken without generating a function;
c. moreover, the fastening degree of the metal screw 4 is also required, the fastening is too tight, the whole closing plate 2 cannot be opened and is too loose, and the closing plate 2 is easy to fall off under the normal shaking of the ring main unit
d. After the pressure is relieved for one time, the damaged pressure relief device needs to be replaced, so that the installation is troublesome, and materials are wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, pressure release in time and can used repeatedly's looped netowrk cabinet of pressure release of being convenient for.
The utility model discloses a realize through following technical scheme:
a ring main unit facilitating pressure relief, comprising:
the side wall of the cabinet body is provided with a pressure relief channel, the pressure relief channel is provided with a pressure relief plate, the end surface of the pressure relief plate close to the inner cavity of the cabinet body is provided with a slot, and the side wall of the cabinet body below the pressure relief channel is provided with an accommodating groove matched with the pressure relief plate;
the switch assembly comprises a connecting rod which is rotatably arranged on the side wall of the cabinet body, an inserting rod is arranged at one end, corresponding to the slot, of the connecting rod, the inserting rod is inserted into the slot, and an airflow driving plate is arranged at the other end of the connecting rod.
Optionally, a supporting seat is arranged on the side wall of the cabinet body, a fixed mandrel is arranged on the supporting seat, the axial direction of the fixed mandrel is parallel to the end face of the pressure relief plate, a rotating shaft is sleeved on the fixed mandrel, a connecting rod is arranged on the rotating shaft, the length direction of the connecting rod is perpendicular to the axial direction of the fixed mandrel, and the inserting rod and the connecting rod are in an L shape.
Optionally, a torsion spring is arranged between the fixed mandrel and the rotating shaft, the torsion spring is sleeved on the fixed mandrel, one end of the torsion spring is connected with the fixed mandrel, and the other end of the torsion spring is connected with the rotating shaft.
Optionally, the airflow drive plate comprises a vertical drive plate and a horizontal drive plate which are integrally arranged, one end, far away from the vertical drive plate, of the horizontal drive plate is connected with the connecting rod, a protruding extension wall is arranged on the side wall of the cabinet body corresponding to the airflow drive plate, the extension wall is provided with a groove communicated with the inner cavity of the cabinet body, and the vertical drive plate is located in the groove.
Optionally, a circular arc chamfer is arranged at the joint of the inner surface of the extension wall and the inner side wall of the cabinet body
Optionally, mounting grooves are formed in the side wall of the cabinet body above and on two sides of the pressure relief channel, and the pressure relief plate is mounted in the mounting grooves.
Optionally, a first buffer device is arranged in the mounting groove above the pressure relief channel, and a second buffer device is arranged at the bottom in the accommodating groove.
Optionally, the first buffer device and the second buffer device are both elastic rubber pads.
Optionally, a plurality of pressure relief holes communicated with the inner cavity of the cabinet body and the outside are formed in the pressure relief plate, and the pressure relief holes are obliquely arranged.
Optionally, a handle is arranged on the end face of the pressure relief plate far away from the inner cavity of the cabinet body.
The utility model has the advantages that:
the utility model provides a looped netowrk cabinet convenient to pressure release is provided with pressure relief board on the pressure relief passageway, and pressure relief passageway below is provided with the storage tank, rotationally is provided with the connecting rod on the cabinet body side wall, and the one end that the connecting rod corresponds the slot is provided with the inserted bar, and the inserted bar is inserted and is located the slot, and the other end of connecting rod is provided with the air current drive plate. The technical scheme of the utility model is simple in structure, and when the arc fault occurs in the cabinet, the gas pressure in the cabinet can be suddenly lifted, the high-pressure gas generated in the cabinet can apply pressure to the gas flow driving plate, the gas flow driving plate drives the connecting rod to rotate under the pressure of the gas flow, so that one end of the connecting rod close to the slot rotates towards the cabinet, the connecting rod further drives the inserting rod to be separated from the slot, the pressure relief plate is accommodated in the accommodating groove under the action of the gravity of the pressure relief plate, and the pressure relief channel is opened to timely relieve the pressure; in addition, after the pressure relief is completed, the pressure relief plate is unfolded upwards from the containing groove, the pressure relief plate seals the pressure relief channel again, the inserted rod is inserted into the inserting groove again, the pressure relief plate is prevented from dropping downwards, and the pressure relief plate can be reused when pressure relief is needed next time.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic view of an overall structure of a pressure relief device of a conventional ring main unit;
FIG. 2 is a cross-sectional view of the overall structure of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a schematic structural view of the ring main unit according to the present invention in a pressure relief state;
FIG. 5 is a schematic structural view of the switch assembly of the present invention;
fig. 6 is a schematic structural diagram of another embodiment of the present invention.
Detailed Description
A ring main unit convenient for pressure relief, as shown in fig. 2 to 5, comprising:
the cabinet comprises a cabinet body 100, wherein a pressure relief channel 101 is arranged on the side wall of the cabinet body 100, a pressure relief plate 102 is arranged on the pressure relief channel 101, a slot 103 is arranged on the end surface of the pressure relief plate 102 close to the inner cavity of the cabinet body 100, and a containing groove 104 matched with the pressure relief plate 102 is arranged on the side wall of the cabinet body 100 below the pressure relief channel 101;
the switch assembly comprises a connecting rod 200 rotatably arranged on the side wall of the cabinet body 100, an inserting rod 201 is arranged at one end, corresponding to the slot 103, of the connecting rod 200, the inserting rod 201 is inserted into the slot 103, and an airflow driving plate 202 is arranged at the other end of the connecting rod 200.
In this embodiment, a pressure relief plate 102 is disposed on the pressure relief channel 101, a receiving groove 104 is disposed below the pressure relief channel 101, a connecting rod 200 is rotatably disposed on a side wall of the cabinet 100, an inserting rod 201 is disposed at one end of the connecting rod 200, the inserting rod 201 is inserted into the slot 103, and an airflow driving plate 202 is disposed at the other end of the connecting rod 200. The looped netowrk cabinet convenient to pressure release of this embodiment is simple structure not only, and when the internal emergence arc trouble of cabinet, as shown in fig. 4, the gas pressure of the internal portion of cabinet 100 can promote suddenly, the internal high-pressure gas that produces of cabinet can exert pressure to air current drive plate 202, air current drive plate 202 drives connecting rod 200 and rotates around supporting seat 203 under the pressure of air current, connecting rod 200 and then drives inserted bar 201 and separate in slot 103, pressure release plate 102 is accomodate in storage tank 103 under its action of gravity, make pressure release channel 101 open in time and carry out the pressure release. In addition, after the pressure relief is completed, the pressure relief plate 102 is unfolded upwards from the accommodating groove 103, the pressure relief plate 102 closes the pressure relief channel 101 again, the insertion rod 201 extends into the insertion groove 103 again, the pressure relief plate 102 is prevented from falling downwards, and the pressure relief plate can be reused when pressure relief is needed next time.
In some embodiments, as shown in fig. 3 and 5, a supporting seat 203 is disposed on a side wall of the cabinet 100, a fixed spindle 204 is disposed on the supporting seat 203, an axial direction of the fixed spindle 204 is parallel to an end surface of the pressure relief plate 102, a rotating shaft 205 is sleeved on the fixed spindle 204, the connecting rod 200 is disposed on the rotating shaft 205, a length direction of the connecting rod 200 is perpendicular to the axial direction of the fixed spindle 204, and the inserting rod 201 and the connecting rod 200 are L-shaped. The connecting rod 200 rotates around the fixed mandrel 204 through the rotating shaft 205, the inserting rod 201 and the connecting rod 200 are L-shaped, the inserting rod 201 is disposed at one side close to the pressure relief plate 102, and the connecting rod 200 can further drive the inserting rod 201 to enter the slot 103 or separate from the slot 103. It should be noted that a through hole may also be formed in the supporting base 203, the rotating shaft 205 is a solid pin, and the rotating shaft 205 is directly inserted into the through hole of the supporting base 203 and rotates in the through hole of the supporting base 203.
In some embodiments, as shown in fig. 3, a torsion spring 206 is disposed between the fixed spindle 204 and the rotating shaft 205, the torsion spring 206 is sleeved on the fixed spindle 204, one end of the torsion spring 206 is connected to the fixed spindle 204, and the other end of the torsion spring 206 is connected to the rotating shaft 205, so that the insertion rod 201 is inserted into the insertion slot 103 by the torsion force of the torsion spring 206. The torsional force that torsional spring 206 provided makes inserted bar 201 insert and locate the slot 103 through connecting rod 200, during the pressure release, high-pressure draught provides a pressure for air current drive plate 202, air current drive plate 202 and then provides a torsional force for connecting rod 200, when the torsional force that air current drive plate 202 provided for connecting rod 200 is greater than the torsional force that torsional spring 206 provided for connecting rod 200, air current drive plate 202 drives connecting rod 200 and rotates, connecting rod 200 and then drives inserted bar 201 and separate from slot 103, after the pressure release was accomplished, expand pressure release plate 102 from the accommodation slot 103 to the top, inserted bar 201 stretches into in slot 103 again through the torsional force of torsional spring 206. It should be noted that the switch assembly may be disposed on any one of the upper, lower, left, and right sides of the pressure relief channel 101 on the inner side wall of the cabinet 100. In addition, when the switch component is disposed above or below the pressure relief channel 101, the size, shape or mass of the connecting rod 200, the inserting rod 201 and the airflow driving plate 202 can be set, so that the connecting rod 200 is sleeved on the fixing mandrel 204 through the rotating shaft 205, the inserting rod 201 can be directly inserted into the slot 103, after the pressure relief is completed, the inserting rod 201 can be inserted into the slot 103 again under the action of gravity, in this case, the torsion spring 206 can be omitted, and the structure is more simplified.
In some embodiments, as shown in fig. 2 to 4, the airflow driving plate 202 includes a vertical driving plate 207 and a horizontal driving plate 208 integrally arranged, one end of the horizontal driving plate 208 away from the vertical driving plate 207 is connected to the connecting rod 200, a convex extending wall 105 is arranged on a side wall of the cabinet 100 corresponding to the airflow driving plate 202, the extending wall 105 is formed with a groove 106 communicated with the inner cavity of the cabinet 100, the vertical driving plate 207 is located in the groove 106, the vertical driving plate 207 and the pressure relief plate 102 are located on the same side of the connecting rod 200, and an end face of the vertical driving plate 207 is parallel to an inner side wall of the cabinet. The space of the groove 106 is narrower relative to the inner cavity of the cabinet body 100, and when high-pressure gas generated in the cabinet body 100 enters the groove 106, the pressure is further increased, so that the pressure applied by the high-pressure gas to the vertical driving plate 207 of the groove 106 is larger, the connecting rod 200 can rotate more quickly, and the pressure relief efficiency is further improved. In addition, as shown in fig. 6, the vertical driving plate 207 can also be directly located in the inner cavity of the cabinet 100, and the vertical driving plate 207 and the pressure relief plate 102 are located at two sides of the connecting rod 200, so that the cabinet 100 does not need to be provided with an extending wall 105 with a redundant groove 106, the structure is simpler, and materials are saved.
In some embodiments, as shown in fig. 2 to 4, a rounded chamfer 107 is provided at the junction of the inner surface of the extension wall 105 and the inner side wall of the cabinet 100. The rounded chamfer 107 not only prevents stress concentration, but also facilitates better entry of high pressure air within the cabinet 100 into the groove 106.
In some embodiments, as shown in fig. 3, mounting grooves 108 are disposed above and at two sides of the pressure relief channel 101 on the sidewall of the cabinet 100, and the pressure relief plate 102 is mounted in the mounting grooves 108, so that not only the sealing effect between the pressure relief plate 102 and the pressure relief channel 101 is better, but also the upper end of the pressure relief plate 102 can be prevented from shaking along the direction perpendicular to the sidewall of the cabinet 100.
In some embodiments, as shown in fig. 2 to 4, a first buffer device 109 is disposed in the mounting groove 108 above the pressure relief channel 101, and a second buffer device 110 is disposed at the bottom of the receiving groove 104. The provision of the first buffer device 109 and the second buffer device 110 can prevent the pressure relief plate 102 from being damaged when moving up and down.
In some embodiments, the first damping device 109 and the second damping device 110 are both elastic rubber pads. The elastic rubber pad is solid and durable, and the price is substantial. The first damper 109 and the second damper 110 may be damper springs.
In some embodiments, as shown in fig. 2 to 4, the pressure relief plate 102 is provided with a plurality of pressure relief holes 111 communicating the inner cavity of the cabinet 100 with the outside, and the pressure relief holes 111 are obliquely arranged. The pressure relief hole 111 is provided, when the pressure of the air in the cabinet 100 is not particularly large, the air can overflow out of the cabinet 100 through the pressure relief hole 111, and the pressure relief hole 111 is obliquely arranged, so that the external dust can be reduced from entering the cabinet 100.
In some embodiments, as shown in fig. 2-4, a handle 112 is disposed on an end of the pressure relief plate 102 away from the interior of the cabinet 100. A handle 112 is provided to facilitate the application of force when the pressure relief panel 102 is extended upwardly from the receiving channel 104.
The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a looped netowrk cabinet convenient to pressure release which characterized in that includes:
the cabinet comprises a cabinet body (100), wherein a pressure relief channel (101) is arranged on the side wall of the cabinet body (100), a pressure relief plate (102) is arranged on the pressure relief channel (101), an insertion groove (103) is arranged on the end face, close to the inner cavity of the cabinet body (100), of the pressure relief plate (102), and a containing groove (104) matched with the pressure relief plate (102) is arranged below the pressure relief channel (101) on the side wall of the cabinet body (100);
the switch assembly comprises a connecting rod (200) rotatably arranged on the side wall of the cabinet body (100), an inserting rod (201) is arranged at one end, corresponding to the slot (103), of the connecting rod (200), the inserting rod (201) is inserted into the slot (103), and an airflow driving plate (202) is arranged at the other end of the connecting rod (200).
2. The ring main unit convenient for pressure relief according to claim 1, wherein: be provided with supporting seat (203) on the cabinet body (100) lateral wall, be provided with fixed mandrel (204) on supporting seat (203), the axis direction of fixed mandrel (204) is on a parallel with the terminal surface of pressure relief board (102), the cover is equipped with axis of rotation (205) on fixed mandrel (204), connecting rod (200) set up in on axis of rotation (205), the length direction perpendicular to of connecting rod (200) the axis direction of fixed mandrel (204), inserted bar (201) with connecting rod (200) are the L shape.
3. The ring main unit convenient for pressure relief according to claim 2, wherein: the fixed spindle (204) and the rotating shaft (205) are provided with a torsion spring (206) therebetween, the torsion spring (206) is sleeved on the fixed spindle (204), one end of the torsion spring (206) is connected with the fixed spindle (204), and the other end of the torsion spring is connected with the rotating shaft (205).
4. The ring main unit convenient for pressure relief according to any one of claims 1 to 3, wherein: the airflow driving plate (202) comprises a vertical driving plate (207) and a horizontal driving plate (208) which are integrally arranged, one end, far away from the vertical driving plate (207), of the horizontal driving plate (208) is connected with the connecting rod (200), a protruding extending wall (105) is arranged on the side wall of the cabinet body (100) corresponding to the airflow driving plate (202), a groove (106) communicated with the inner cavity of the cabinet body (100) is formed in the extending wall (105), and the vertical driving plate (207) is located in the groove (106).
5. The ring main unit convenient for pressure relief according to claim 4, wherein: and an arc chamfer (107) is arranged at the joint of the inner surface of the extension wall (105) and the inner side wall of the cabinet body (100).
6. The ring main unit convenient for pressure relief according to any one of claims 1 to 3, wherein: mounting grooves (108) are formed in the side wall of the cabinet body (100) above the pressure relief channel (101) and in the two sides of the pressure relief channel, and the pressure relief plate (102) is mounted in the mounting grooves (108) in a matched mode.
7. The ring main unit convenient for pressure relief according to claim 6, wherein: a first buffer device (109) is arranged in the mounting groove (108) above the pressure relief channel (101), and a second buffer device (110) is arranged at the bottom in the accommodating groove (104).
8. The ring main unit convenient for pressure relief according to claim 7, wherein: the first buffer device (109) and the second buffer device (110) are both elastic rubber pads.
9. The ring main unit convenient for pressure relief according to any one of claims 1 to 3, wherein: the pressure relief plate (102) is provided with a plurality of pressure relief holes (111) which are communicated with the inner cavity of the cabinet body (100) and the outside, and the pressure relief holes (111) are obliquely arranged.
10. The ring main unit convenient for pressure relief according to any one of claims 1 to 3, wherein: and a handle (112) is arranged on the end surface of the pressure relief plate (102) far away from the inner cavity of the cabinet body (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921416444.8U CN210404536U (en) | 2019-08-28 | 2019-08-28 | Ring main unit convenient to pressure release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921416444.8U CN210404536U (en) | 2019-08-28 | 2019-08-28 | Ring main unit convenient to pressure release |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210404536U true CN210404536U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921416444.8U Active CN210404536U (en) | 2019-08-28 | 2019-08-28 | Ring main unit convenient to pressure release |
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| Country | Link |
|---|---|
| CN (1) | CN210404536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114204440A (en) * | 2021-12-08 | 2022-03-18 | 二工防爆科技股份有限公司 | Explosion-proof power distribution cabinet |
-
2019
- 2019-08-28 CN CN201921416444.8U patent/CN210404536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114204440A (en) * | 2021-12-08 | 2022-03-18 | 二工防爆科技股份有限公司 | Explosion-proof power distribution cabinet |
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Denomination of utility model: Ring main unit convenient for pressure relief Effective date of registration: 20200717 Granted publication date: 20200424 Pledgee: Postal Savings Bank of China Limited Wangcheng County sub branch Pledgor: Hunan Yatai Electrical Equipment Co.,Ltd. Registration number: Y2020980004153 |