CN215955766U - Pressure relief device based on high tension switchgear internal short circuit strikes process simulation - Google Patents
Pressure relief device based on high tension switchgear internal short circuit strikes process simulation Download PDFInfo
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- CN215955766U CN215955766U CN202122283063.0U CN202122283063U CN215955766U CN 215955766 U CN215955766 U CN 215955766U CN 202122283063 U CN202122283063 U CN 202122283063U CN 215955766 U CN215955766 U CN 215955766U
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Abstract
The utility model relates to the technical field of switch cabinet equipment, in particular to a pressure relief device based on high-voltage switch cabinet internal short circuit impact process simulation, which comprises a switch cabinet body and a pressure relief block, wherein the pressure relief block is arranged at the top of the switch cabinet body, a circular air guide channel is vertically arranged in the pressure relief block, the circular air guide channel is communicated with the inside of the switch cabinet body, an air transmission channel is transversely arranged on the inner side wall of the circular air guide channel, a pneumatic mechanism is arranged in the switch cabinet body, and the air transmission channel is connected with the pneumatic mechanism; the pressure relief device of this structure can realize the purpose to the quick pressure release of cubical switchboard, does not produce during its pressure release and bursts the object that splashes to effectively improve the security of pressure release work, because the pressure release part all is located the device inside simultaneously, effectively avoid the corrosion phenomenon of part to take place, avoid the device to appear gas leakage phenomenon, guarantee that the cubical switchboard can normal use, improve the practicality.
Description
Technical Field
The utility model relates to the technical field of switch cabinet equipment, in particular to a pressure relief device based on the simulation of an impact process of a short circuit in a high-voltage switch cabinet.
Background
As is well known, the pressure relief device in the high-voltage switch cabinet is mainly security protection equipment for relieving the pressure of gas in the switch cabinet, when the equipment in the switch cabinet generates electric arc due to long-time operation, the electric arc acts on the inert gas in the switch cabinet to lead the gas to expand rapidly, and the gas in the switch cabinet is discharged through the pressure relief device, so that the internal gas pressure of the switch cabinet is kept in a normal state, and the phenomenon of explosion of the switch cabinet is avoided.
Current pressure relief device adopts the compound mode of pressure release mouth and plastics apron usually, when cubical switchboard internal pressure is too big, the inside atmospheric pressure of cubical switchboard is used in the plastics apron and makes the apron take place to break, thereby make gaseous discharge through the pressure release mouth, however the security of this kind of mode is relatively poor, cause destruction to workman and other equipment easily when the apron bursts, simultaneously because the apron exposes in external environment for a long time, the apron takes place to corrode easily and destroys, lead to its gas leakage phenomenon to appear, influence the normal use of cubical switchboard.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a pressure relief device based on the simulation of the impact process of a short circuit in a high-voltage switch cabinet.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the pressure relief device based on the high-voltage switch cabinet internal short circuit impact process simulation comprises a switch cabinet body and a pressure relief block, wherein the pressure relief block is installed at the top of the switch cabinet body, a circular air guide channel is vertically formed in the pressure relief block, the circular air guide channel is communicated with the inside of the switch cabinet body, an air transmission channel is transversely formed in the inner side wall of the circular air guide channel, a pneumatic mechanism is arranged in the switch cabinet body, and the air transmission channel is connected with the pneumatic mechanism;
the air guide device is characterized by further comprising a circular buckling cap, the circular buckling cap is located in the circular air guide channel, the outer wall of the circular buckling cap is in sliding contact with the inner wall of the circular air guide channel, the opening of the circular buckling cap faces downwards, a plurality of air guide holes are uniformly formed in the top of the circular buckling cap, a sealing plate is covered on each air guide hole, a polygonal telescopic rod is rotatably arranged at the top of the circular buckling cap, the sealing plate is mounted at the lower fixed end of the polygonal telescopic rod, a supporting frame is rotatably mounted at the upper movable end of the polygonal telescopic rod, and the supporting frame is fixed on the inner side wall of the circular air guide channel;
the pneumatic mechanism is in transmission connection with the polygonal telescopic rod, and a plurality of groups of elastic mechanisms are fixedly arranged between the support frame and the circular buckle cap.
Further, the pneumatic mechanism comprises a direction air guide bin and a direction exhaust channel which are arranged in the pressure relief block, the direction air guide bin is positioned at the lower side of the direction exhaust channel and communicated with the direction exhaust channel, and the opening of the direction exhaust channel faces upwards;
the inner wall of the direction exhaust channel is rotatably provided with a first cover plate, the first cover plate is covered on the direction air guide bin, the bottom of the first cover plate is provided with a second cover plate, the second cover plate is covered on the air delivery channel, the top of the first cover plate is provided with a first plate spring and a first push-pull rod, the outer end of the first plate spring is fixed on the inner wall of the direction exhaust channel, the first push-pull rod is inclined and is rotatably connected with the first cover plate, the outer end of the first push-pull rod is rotatably provided with a second push-pull rod, the outer end of the second push-pull rod transversely penetrates through the inner side wall of the direction exhaust channel and extends into the circular air guide channel, the second push-pull rod is slidably connected with the pressure relief block, the outer end of the second push-pull rod is obliquely and rotatably provided with a third push-pull rod, and the push-pull rod is rotatably provided with a turntable, the rotary table is fixedly arranged at the movable end of the polygonal telescopic rod.
Furthermore, the elastic mechanism comprises a spring and a supporting telescopic rod, the spring and the supporting telescopic rod are installed at the bottom of the supporting frame, the supporting telescopic rod is located in the spring, a fixing frame is arranged at the bottom of the spring, the fixing frame is connected with the supporting telescopic rod, and the bottom of the fixing frame is fixed to the top of the circular buckle cap.
Furthermore, the shape of mount is the right angle shape, and spring bottom with support telescopic link bottom all with the horizontal right-angle side of mount is connected, the vertical right-angle side bottom of mount is installed circular buckle on the cap, and the vertical right-angle side of mount with the shrouding is close.
Furthermore, top covers are covered on the top opening of the circular air guide channel and the top opening of the direction exhaust channel, inserting edges are arranged in the circular air guide channel and the direction exhaust channel, and the inserting edges are connected with the top covers;
and a limiting mechanism is arranged between the two top covers.
Furthermore, a sliding cavity is formed in the pressure relief block, the sliding cavity is positioned between the circular air guide channel and the direction exhaust channel, and the sliding cavity deviates from the second push-pull rod;
a sliding plate is arranged in the sliding cavity, a vertical moving plate is mounted at the top of the sliding plate, the top of the vertical moving plate penetrates through the top of the sliding cavity and extends out of the pressure relief block, the vertical moving plate is connected with the pressure relief block in a sliding mode, a connecting plate is mounted at the top of the vertical moving plate, and the left end and the right end of the connecting plate are respectively connected with the two top covers;
and the top of the sliding plate is provided with a second plate spring, and the outer end of the second plate spring is fixed on the inner wall of the sliding cavity.
Furthermore, an installation seat is arranged on the outer wall of the second push-pull rod in the direction exhaust channel, a guide rod is transversely installed on the installation seat, and the outer end of the guide rod is slidably inserted into the pressure relief block.
Furthermore, a baffle ring is arranged on the inner wall of the circular air guide channel and is positioned at the lower side of the circular buckle cap.
Compared with the prior art, the utility model has the beneficial effects that: the outer wall of the circular buckling cap blocks the gas transmission channel, when the switch cabinet body is in a normal operation state, inert gas in the switch cabinet body is in a high-pressure state, air pressure in the switch cabinet body generates acting force on the circular buckling cap, the elastic mechanism generates reverse elastic thrust on the circular buckling cap, the acting force of the elastic mechanism and the acting force of the air pressure are mutually offset, the circular buckling cap is in a stable state in the circular gas guide channel, the sealing plate is in a closed state on a gas guide hole in the circular buckling cap, when electric arc occurs in the switch cabinet body, the air pressure in the switch cabinet body rapidly rises, the acting force of the gas in the switch cabinet body on the circular buckling cap is increased, the circular buckling cap moves upwards in the circular gas guide channel and stops blocking the gas transmission channel, the gas in the switch cabinet body enters the circular gas guide channel and pushes the pneumatic mechanism to operate through the gas transmission channel, the pneumatic mechanism pushes the polygonal telescopic rod to rotate, the polygonal telescopic rod drives the sealing plate to rotate, the sealing plate deviates from the air guide hole on the circular buckling cap, at the moment, the air in the circular buckling cap can flow upwards through the air guide hole and is discharged through the top opening of the circular air guide channel, so that the pressure relief purpose is realized, after the pressure relief of the switch cabinet body is completed, the pneumatic mechanism drives the sealing plate to block the air guide hole on the circular buckling cap again, the elastic mechanism pushes the circular buckling cap to move downwards and block the air transmission channel again, so that the interior of the switch cabinet body is restored to a closed state again, when the circular buckling cap moves, the circular buckling cap pushes the polygonal telescopic rod to perform telescopic motion, the pressure relief device with the structure can realize the purpose of rapid pressure relief of the switch cabinet, no splashing object is generated during the pressure relief, so that the safety of the pressure relief work is effectively improved, and meanwhile, as the pressure relief components are all positioned in the device, effectively avoid the corrosion phenomenon of part to take place, avoid the device to appear gas leakage phenomenon, guarantee that the cubical switchboard can normal use, improve the practicality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the pressure relief block of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the round snap cap of FIG. 2;
FIG. 4 is an enlarged view of a portion A of FIG. 2;
in the drawings, the reference numbers: 1. a switch cabinet body; 2. releasing the pressure block; 3. a circular gas guide channel; 4. a gas transmission channel; 5. a circular buckle cap; 6. closing the plate; 7. a polygonal telescopic rod; 8. a support frame; 9. a direction guide air bin; 10. a directional exhaust passage; 11. a first cover plate; 12. a second cover plate; 13. a first plate spring; 14. a first push-pull rod; 15. a second push-pull rod; 16. a third push-pull rod; 17. a turntable; 18. a spring; 19. supporting the telescopic rod; 20. a fixed mount; 21. a top cover; 22. inserting edges; 23. a sliding plate; 24. vertically moving the plate; 25. a connecting plate; 26. a second plate spring; 27. a mounting seat; 28. a guide bar; 29. and (4) a baffle ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.
As shown in fig. 1 to 4, the pressure relief device based on the high-voltage switch cabinet internal short circuit impact process simulation comprises a switch cabinet body 1 and a pressure relief block 2, wherein the pressure relief block 2 is installed at the top of the switch cabinet body 1, a circular air guide channel 3 is vertically arranged in the pressure relief block 2, the circular air guide channel 3 is communicated with the inside of the switch cabinet body 1, an air transmission channel 4 is transversely arranged on the inner side wall of the circular air guide channel 3, a pneumatic mechanism is arranged in the switch cabinet body 1, and the air transmission channel 4 is connected with the pneumatic mechanism;
the air guide device is characterized by further comprising a circular buckling cap 5, wherein the circular buckling cap 5 is located in the circular air guide channel 3, the outer wall of the circular buckling cap 5 is in sliding contact with the inner wall of the circular air guide channel 3, the opening of the circular buckling cap 5 faces downwards, a plurality of air guide holes are uniformly formed in the top of the circular buckling cap 5, sealing plates 6 are covered on the air guide holes, a polygonal telescopic rod 7 is rotatably arranged at the top of the circular buckling cap 5, the sealing plates 6 are mounted on the lower fixed end of the polygonal telescopic rod 7, a supporting frame 8 is rotatably mounted at the upper movable end of the polygonal telescopic rod 7, and the supporting frame 8 is fixed on the inner side wall of the circular air guide channel 3;
the pneumatic mechanism is in transmission connection with the polygonal telescopic rod 7, and a plurality of groups of elastic mechanisms are fixedly arranged between the support frame 8 and the circular buckle cap 5.
In this embodiment, the outer wall of the circular buckle cap 5 blocks the gas transmission channel 4, when the switch cabinet body 1 is in a normal operation state, the inert gas in the switch cabinet body 1 is in a high-pressure state, the air pressure in the switch cabinet body 1 generates an acting force on the circular buckle cap 5, the elastic mechanism generates reverse elastic thrust on the circular buckle cap 5, the acting force of the elastic mechanism and the acting force of the air pressure are mutually offset, at the moment, the circular buckle cap 5 is in a stable state in the circular gas guide channel 3, the sealing plate 6 is in a closed state for the gas guide hole in the circular buckle cap 5, when an electric arc occurs in the switch cabinet body 1, the air pressure in the switch cabinet body 1 is rapidly increased, the acting force of the gas in the switch cabinet body 1 on the circular buckle cap 5 is increased, the circular buckle cap 5 moves upwards in the circular gas guide channel 3 and stops blocking the gas transmission channel 4, the gas in the switch cabinet body 1 enters the circular gas guide channel 3 and pushes the pneumatic mechanism through the gas transmission channel 4 When the circular buckle cap 5 moves, the circular buckle cap 5 pushes the polygonal telescopic rod 7 to perform telescopic motion, the pressure relief device with the structure can achieve the purpose of quickly relieving the switch cabinet, and no splashing object is generated during pressure relief, so that the safety of the pressure relief work is effectively improved, meanwhile, the pressure relief component is located inside the device, so that the corrosion phenomenon of the component is effectively avoided, the air leakage phenomenon of the device is avoided, the normal use of the switch cabinet is ensured, and the practicability is improved.
As a preference of the above embodiment, the pneumatic mechanism comprises a direction air guide bin 9 and a direction air exhaust channel 10 which are opened inside the pressure relief block 2, wherein the direction air guide bin 9 is positioned at the lower side of the direction air exhaust channel 10, the direction air guide bin 9 is communicated with the direction air exhaust channel 10, and the opening of the direction air exhaust channel 10 is upward;
a first cover plate 11 is rotatably arranged on the inner wall of the directional exhaust channel 10, the first cover plate 11 is covered on the directional air guide bin 9, a second cover plate 12 is arranged at the bottom of the first cover plate 11, the second cover plate 12 is covered on the air delivery channel 4, a first plate spring 13 and a first push-pull rod 14 are arranged at the top of the first cover plate 11, the outer end of the first plate spring 13 is fixed on the inner wall of the directional exhaust channel 10, the first push-pull rod 14 is inclined, the first push-pull rod 14 is rotatably connected with the first cover plate 11, a second push-pull rod 15 is rotatably arranged at the outer end of the first push-pull rod 14, the outer end of the second push-pull rod 15 transversely penetrates through the inner side wall of the directional exhaust channel 10 and extends into the circular air guide channel 3, the second push-pull rod 15 is slidably connected with the pressure release block 2, a third push-pull rod 16 is rotatably arranged at the outer end of the second push-pull rod 15, the outer end of the third push-pull rod 16 is rotatably provided with a turntable 17, and the turntable 17 is fixedly arranged on the movable end of the polygonal telescopic rod 7.
In this embodiment, when the air pressure inside the switch cabinet body 1 rises rapidly, the air inside the switch cabinet body 1 pushes the second cover plate 12 to open through the air transmission channel 4, the air enters the direction guide cabin 9 and pushes the first cover plate 11 to open synchronously, at this time, the first cover plate 11 pushes the first plate spring 13 to elastically deform, the first cover plate 11 pushes the rotary plate 17 to rotate through the first push-pull rod 14, the second push-pull rod 15 and the third push-pull rod 16, the rotary plate 17 drives the polygonal telescopic rod 7 to rotate, so as to drive the sealing plate 6 to deviate from the air guide hole on the circular buckle cap 5, and the purpose of pressure relief and air guide of the circular buckle cap 5 is achieved.
In this embodiment, the gas in the direction gas guiding bin 9 enters the direction exhaust channel 10 and is discharged through the top opening of the direction exhaust channel 10, so that the gas in the switch cabinet body 1 is synchronously discharged through the circular gas guiding channel 3 and the direction exhaust channel 10, and the purpose of dual-channel pressure relief of the gas in the switch cabinet body 1 is achieved.
In the present embodiment, the first cover plate 11 and the second cover plate 12 may perform a plugging process on the air guide compartment 9 and the air delivery passage 4, respectively, so as to improve the sealing property between the pneumatic mechanism and the circular air guide passage 3.
In this embodiment, promote shrouding 6 through adopting pneumatic mechanism and remove, can conveniently carry out the independence with the power supply of shrouding 6, avoid influencing each other between the part, easy to assemble overhauls simultaneously.
Preferably, the elastic mechanism includes a spring 18 and a telescopic supporting rod 19 which are installed at the bottom of the supporting frame 8, the telescopic supporting rod 19 is located in the spring 18, a fixing frame 20 is arranged at the bottom of the spring 18, the fixing frame 20 is connected with the telescopic supporting rod 19, and the bottom of the fixing frame 20 is fixed at the top of the circular buckle cap 5.
In this embodiment, when circular knot cap 5 reciprocated, circular knot cap 5 promoted spring 18 and takes place elastic deformation, and spring 18 is reverse to circular knot cap 5 production elastic thrust, supports telescopic link 19 through setting up, can conveniently support spring 18 and circular knot cap 5, avoids spring 18 to take place distortion, avoids circular knot cap 5 to rotate at will.
Preferably, the fixing frame 20 is in a right-angle shape, the bottoms of the springs 18 and the bottom of the supporting telescopic rod 19 are both connected with a horizontal right-angle side of the fixing frame 20, the bottom of a vertical right-angle side of the fixing frame 20 is mounted on the circular buckle cap 5, and the vertical right-angle side of the fixing frame 20 is close to the closing plate 6.
In this embodiment, when shrouding 6 rotates, shrouding 6 separates rather than adjacent mount 20 gradually, adjacent shrouding 6 is close with this mount 20 gradually, and adjacent shrouding 6 rotates to mount 20 inside, thereby effectively save space, avoid mount 20 to cause the influence to the rotation work of shrouding 6, conveniently make the air guide hole open completely, the vertical right-angle side of mount 20 can carry out spacing processing to the turned position of shrouding 6 simultaneously, avoid it to rotate to adjacent air guide hole on and cause the shutoff phenomenon to it.
As a preference of the above embodiment, the top opening of the circular air guide channel 3 and the top opening of the direction exhaust channel 10 are both covered with a top cover 21, inserting edges 22 are respectively arranged in the circular air guide channel 3 and the direction exhaust channel 10, and the inserting edges 22 are connected with the top cover 21;
and a limiting mechanism is arranged between the two top covers 21.
In this embodiment, when the switch cabinet body 1 is in normal operating condition, two top covers 21 seal the lid respectively and handle circular air guide channel 3 and direction exhaust passage 10's opening, avoid external impurity to get into in the pressure release piece 2, insert limit 22 through the setting, can conveniently fix a position top cover 21, improve top cover 21's sealed effect simultaneously, when the switch cabinet body 1 is in the pressure release state, gaseous promotion top cover 21 with insert limit 22 and upwards remove, circular air guide channel 3 and direction exhaust passage 10 are in the open mode this moment, thereby conveniently realize the purpose of pressure release.
As a preference of the above embodiment, a sliding cavity is formed in the pressure relief block 2, and the sliding cavity is located between the circular air guide channel 3 and the directional exhaust channel 10, and is offset from the second push-pull rod 15;
a sliding plate 23 is arranged in the sliding cavity, a vertical moving plate 24 is mounted at the top of the sliding plate 23, the top of the vertical moving plate 24 penetrates through the top of the sliding cavity and extends out of the pressure relief block 2, the vertical moving plate 24 is slidably connected with the pressure relief block 2, a connecting plate 25 is mounted at the top of the vertical moving plate 24, and the left end and the right end of the connecting plate 25 are respectively connected with the two top covers 21;
and a second plate spring 26 is mounted on the top of the sliding plate 23, and the outer end of the second plate spring 26 is fixed on the inner wall of the sliding cavity.
In this embodiment, when the top cover 21 moves upward, the top cover 21 drives the sliding plate 23 to move upward through the connecting plate 25 and the vertical moving plate 24, the sliding plate 23 synchronously pushes the second plate spring 26 to generate elastic deformation, the inner wall of the sliding cavity limits the up-and-down moving position of the sliding plate 23, thereby limiting the moving position part of the top cover 21, guiding the top cover 21 by the vertical moving plate 24, when the top cover 21 is at the initial position, the bottom of the connecting plate 25 contacts with the top of the pressure relief block 2, at this time, the sliding chamber is sealed by the connecting plate 25, the second plate spring 26 is arranged to conveniently push the sliding plate 23 to move downwards in the reverse direction, therefore, the top covers 21 can be conveniently moved downwards to the initial positions, and meanwhile, the two top covers 21 can be conveniently and tightly attached to the top openings of the circular air guide channels 3 and the top openings of the direction exhaust channels 10 in a sealing mode, and the sealing effect of the top covers 21 is improved.
Preferably, as for the above embodiment, the outer wall of the second push-pull rod 15 in the directional exhaust channel 10 is provided with a mounting seat 27, a guide rod 28 is transversely mounted on the mounting seat 27, and the outer end of the guide rod 28 is slidably inserted into the pressure relief block 2.
In this embodiment, the installation seat 27 and the guide rod 28 are arranged to facilitate guiding the second push-pull rod 15, so as to improve the stability and firmness of the second push-pull rod during movement and avoid the second push-pull rod 15 from bending deformation.
Preferably, the inner wall of the circular air guide channel 3 is provided with a baffle ring 29, and the baffle ring 29 is positioned at the lower side of the circular buckle cap 5.
In this embodiment, the stop ring 29 is arranged, so that the circular buckle cap 5 can be conveniently limited at the downward moving position in the circular air guide channel 3, and the circular buckle cap 5 is prevented from entering the switch cabinet body 1.
The pressure relief device based on the simulation of the impact process of the short circuit in the high-voltage switch cabinet is mounted, connected or arranged in a common mechanical mode, and can be implemented as long as the beneficial effects of the pressure relief device are achieved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The pressure relief device based on the high-voltage switch cabinet internal short circuit impact process simulation is characterized by comprising a switch cabinet body (1) and a pressure relief block (2), wherein the pressure relief block (2) is installed at the top of the switch cabinet body (1), a circular air guide channel (3) is vertically arranged in the pressure relief block (2), the circular air guide channel (3) is communicated with the inside of the switch cabinet body (1), an air transmission channel (4) is transversely arranged on the inner side wall of the circular air guide channel (3), a pneumatic mechanism is arranged in the switch cabinet body (1), and the air transmission channel (4) is connected with the pneumatic mechanism;
the air guide device is characterized by further comprising a circular buckling cap (5), wherein the circular buckling cap (5) is located in the circular air guide channel (3), the outer wall of the circular buckling cap (5) is in sliding contact with the inner wall of the circular air guide channel (3), the opening of the circular buckling cap (5) faces downwards, a plurality of air guide holes are uniformly formed in the top of the circular buckling cap (5), sealing plates (6) are covered on the air guide holes, a polygonal telescopic rod (7) is rotatably arranged at the top of the circular buckling cap (5), the sealing plates (6) are mounted at the lower side fixing end of the polygonal telescopic rod (7), a supporting frame (8) is rotatably mounted at the upper side movable end of the polygonal telescopic rod (7), and the supporting frame (8) is fixed on the inner side wall of the circular air guide channel (3);
the pneumatic mechanism is in transmission connection with the polygonal telescopic rod (7), and a plurality of groups of elastic mechanisms are fixedly arranged between the support frame (8) and the circular buckle cap (5).
2. The pressure relief device based on simulation of an impact process of a short circuit inside a high-voltage switch cabinet as recited in claim 1, wherein the pneumatic mechanism comprises a directional air guide bin (9) and a directional exhaust channel (10) which are arranged inside the pressure relief block (2), the directional air guide bin (9) is positioned at the lower side of the directional exhaust channel (10), the directional air guide bin (9) is communicated with the directional exhaust channel (10), and the opening of the directional exhaust channel (10) is upward;
a first cover plate (11) is rotatably arranged on the inner wall of the directional exhaust channel (10), the first cover plate (11) is covered on the directional air guide bin (9), a second cover plate (12) is arranged at the bottom of the first cover plate (11), the second cover plate (12) is covered on the air delivery channel (4), a first plate spring (13) and a first push-pull rod (14) are arranged at the top of the first cover plate (11), the outer end of the first plate spring (13) is fixed on the inner wall of the directional exhaust channel (10), the first push-pull rod (14) is inclined, the first push-pull rod (14) is rotatably connected with the first cover plate (11), a second push-pull rod (15) is rotatably arranged at the outer end of the first push-pull rod (14), and the outer end of the second push-pull rod (15) transversely penetrates through the inner side wall of the directional exhaust channel (10) and extends into the circular air guide channel (3), the second push-pull rod (15) is connected with the pressure relief block (2) in a sliding mode, a third push-pull rod (16) is arranged at the outer end of the second push-pull rod (15) in an inclined rotating mode, a rotary table (17) is arranged at the outer end of the third push-pull rod (16) in a rotating mode, and the rotary table (17) is fixedly installed on the movable end of the polygonal telescopic rod (7).
3. The pressure relief device based on simulation of an impact process of a short circuit inside a high-voltage switch cabinet as claimed in claim 2, wherein the elastic mechanism comprises a spring (18) and a supporting telescopic rod (19) which are installed at the bottom of the supporting frame (8), the supporting telescopic rod (19) is located inside the spring (18), a fixing frame (20) is arranged at the bottom of the spring (18), the fixing frame (20) is connected with the supporting telescopic rod (19), and the bottom of the fixing frame (20) is fixed at the top of the circular buckle cap (5).
4. The pressure relief device based on simulation of an impact process of a short circuit inside a high-voltage switch cabinet as claimed in claim 3, wherein the shape of the fixing frame (20) is right-angled, and the bottom of the spring (18) and the bottom of the supporting telescopic rod (19) are both connected with the horizontal right-angled edge of the fixing frame (20), the bottom of the vertical right-angled edge of the fixing frame (20) is installed on the circular buckle cap (5), and the vertical right-angled edge of the fixing frame (20) is close to the sealing plate (6).
5. The pressure relief device based on high-voltage switch cabinet internal short circuit impact process simulation as recited in claim 4, characterized in that a top cover (21) is covered on both the top opening of the circular air guide channel (3) and the top opening of the directional exhaust channel (10), inserting edges (22) are arranged in the circular air guide channel (3) and the directional exhaust channel (10), and the inserting edges (22) are connected with the top cover (21);
and a limiting mechanism is arranged between the two top covers (21).
6. The pressure relief device based on simulation of an impact process of a short circuit inside a high-voltage switch cabinet as recited in claim 5, characterized in that a sliding cavity is formed in the pressure relief block (2), the sliding cavity is located between the circular air guide channel (3) and the directional exhaust channel (10), and the sliding cavity is offset from the second push-pull rod (15);
a sliding plate (23) is arranged in the sliding cavity, a vertical moving plate (24) is mounted at the top of the sliding plate (23), the top of the vertical moving plate (24) penetrates through the top of the sliding cavity and extends out of the pressure relief block (2), the vertical moving plate (24) is connected with the pressure relief block (2) in a sliding mode, a connecting plate (25) is mounted at the top of the vertical moving plate (24), and the left end and the right end of the connecting plate (25) are connected with the two top covers (21) respectively;
and a second plate spring (26) is arranged at the top of the sliding plate (23), and the outer end of the second plate spring (26) is fixed on the inner wall of the sliding cavity.
7. The pressure relief device based on high-voltage switch cabinet internal short circuit impact process simulation as claimed in claim 6, wherein a mounting seat (27) is arranged on the outer wall of the second push-pull rod (15) in the directional exhaust channel (10), a guide rod (28) is transversely mounted on the mounting seat (27), and the outer end of the guide rod (28) is slidably inserted into the pressure relief block (2).
8. The pressure relief device based on high-voltage switch cabinet internal short circuit impact process simulation as claimed in claim 7, wherein a baffle ring (29) is installed on the inner wall of the circular air guide channel (3), and the baffle ring (29) is located at the lower side of the circular buckle cap (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122283063.0U CN215955766U (en) | 2021-09-18 | 2021-09-18 | Pressure relief device based on high tension switchgear internal short circuit strikes process simulation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122283063.0U CN215955766U (en) | 2021-09-18 | 2021-09-18 | Pressure relief device based on high tension switchgear internal short circuit strikes process simulation |
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| CN215955766U true CN215955766U (en) | 2022-03-04 |
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| CN202122283063.0U Active CN215955766U (en) | 2021-09-18 | 2021-09-18 | Pressure relief device based on high tension switchgear internal short circuit strikes process simulation |
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| CN (1) | CN215955766U (en) |
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2021
- 2021-09-18 CN CN202122283063.0U patent/CN215955766U/en active Active
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