Protective mobile substation for power grid safety guarantee

Abstract

The invention is applicable to the technical field of mobile substations, and provides a protective mobile substation for power grid safety guarantee, which comprises a mobile vehicle body, a mobile substation body mounted at the upper end of the mobile vehicle body, four protective mechanisms arranged at the upper end of the mobile vehicle body around the mobile substation body, and a mounting plate, the protection mechanism comprises two stand columns arranged at the upper end of the movable trolley body, the ends, close to the stand columns, of the mounting plates are rotationally connected with first connecting rods, and the tail ends of the first connecting rods are rotationally connected with second guide blocks. When a pedestrian or a vehicle collides with the mounting plate, a buffer spring is compressed under stress to buffer a collider, so that the collider is protected, the first conductive armature makes contact with the second conductive armature, an alarm circuit is closed, the alarm gives an alarm sound and gives an alarm prompt to surrounding personnel, and then the collider is rescued in time. And the mobile substation body is subjected to emergency maintenance, so that the safety of the mobile substation is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of mobile substations, and particularly relates to a protective mobile substation for power grid safety assurance. Background Art

[0002] A protective mobile substation for power grid safety assurance is a mobile power emergency device integrating high-voltage power distribution, transformer, and low-voltage power distribution functions, designed specifically to enhance the anti-risk ability of the power grid. Its core function is to provide stable power support through rapid deployment of a modular structure in scenarios such as power grid failures, natural disasters, or temporary power demand.

[0003] To improve the safety protection performance of existing mobile substations, protective plates are usually set on the periphery of the substation to prevent people from coming into contact with the substation. For example, for a protective mobile substation disclosed in CN222365965U, when protecting the substation, the first motor is started to drive the lead screw to rotate, so that the moving block moves up and down. The side guard plate is rotatably connected to one side of the moving block, and the two side guard plates are connected by a connecting member. When the moving block rises, it will drive the side guard plate to stand up, protecting the substation body and preventing workers from accidentally touching the substation body at the same time.

[0004] Although the above method can prevent direct contact between the surrounding people and the substation, it does not have a protection function. When an external vehicle or pedestrian hits the side guard plate, it does not have a buffering function or an alarm function, that is, it cannot protect the hitter, nor can it remind the surrounding staff to rescue the hitter and repair the mobile substation. Summary of the Invention

[0005] The purpose of the embodiment of the present invention is to provide a protective mobile substation for power grid safety assurance, aiming to solve the problem that existing mobile substations cannot protect the hitter when an external vehicle or pedestrian hits the side guard plate, nor can they remind the surrounding staff to rescue the hitter and repair the mobile substation.

[0006] The present invention is realized as follows. A protective mobile substation for power grid security protection includes a mobile vehicle body and a mobile substation body installed at the upper end of the mobile vehicle body. It further includes: four protective mechanisms arranged around the mobile substation body at the upper end of the mobile vehicle body, and a mounting plate. The protective mechanism includes two columns arranged at the upper end of the mobile vehicle body. One end of the mounting plate close to the column is rotatably connected to a first connecting rod, and the end of the first connecting rod is rotatably connected to a second guiding block. A first guiding groove is arranged at one end of the mounting plate close to the first connecting rod. A second connecting rod is rotatably connected to the side wall of the column. The middle part of the second connecting rod is rotatably connected to the first connecting rod. The end of the second connecting rod is rotatably connected to a first guiding block, and the first guiding block is slidably connected in the first guiding groove. A second guiding groove is arranged on the side wall of the column, and the second guiding block is slidably connected in the second guiding groove. One end of the second guiding block is fixed with a buffer spring, and the end of the buffer spring is fixed in the second guiding groove. An alarm structure is arranged on the mobile vehicle body. When the first connecting rod and the second connecting rod are folded, the alarm structure emits an alarm sound.

[0007] A further technical solution is that the alarm structure includes a connecting sleeve slidably connected vertically on one of the columns. A contact rod is slidably connected to the lower end of the connecting sleeve. A second compression spring is fixed to the upper end of the contact rod, and the end of the second compression spring is fixed in the connecting sleeve. A third guiding groove is arranged vertically at the upper end of the mobile vehicle body. A first conductive armature is slidably connected in the third guiding groove. A first compression spring is fixed to the bottom of the first conductive armature, and the end of the first compression spring is fixed to the bottom of the third guiding groove. A second conductive armature is fixed to the bottom of the third guiding groove. An alarm is installed on the other column. The first conductive armature and the second conductive armature are connected in series in the alarm circuit. When the first conductive armature and the second conductive armature are in contact, the alarm circuit is closed.

[0008] A further technical solution is that one end of the mounting plate far from the column is rotatably connected to a rotating plate. The upper part of the rotating plate is rotatably connected to the mounting plate, and an arc-shaped block is fixed to the lower part of the rotating plate. A tension spring is fixed to the arc-shaped block, and the end of the tension spring is fixed to one end of the mounting plate far from the rotating plate.

[0009] A further technical solution is that a fourth guiding groove is arranged vertically on one of the columns. A transmission block is slidably connected in the fourth guiding groove. The transmission block is located between the second guiding block and the connecting sleeve. The bottom of the connecting sleeve is fixedly connected to the connecting sleeve. A transmission groove is arranged on the transmission block, and the transmission groove cooperates with the arc-shaped block. A transmission rod is fixed to the bottom of the second guiding block.

[0010] Further technical solution: A hydraulic groove is vertically arranged on one of the columns. Hydraulic oil is arranged in the hydraulic groove. A piston plate is slidably connected in the hydraulic groove. At least one one-way valve is installed on the piston plate. At least one small hole is arranged on the piston plate. The piston plate is fixed on the side wall of the connecting sleeve.

[0011] Further technical solution: A ratchet rack is vertically embedded on the side wall of the second guide block. A sliding groove is horizontally arranged in one of the columns. A sliding block is slidably connected in the sliding groove. One end of the sliding block is fixed with a meshing tooth, and the meshing tooth cooperates with the ratchet rack. The other end of the sliding block is fixed with a fourth compression spring and a pull rod. The end of the fourth compression spring is fixed in the sliding groove, and the end of the pull rod extends out of the column.

[0012] Further technical solution: One of the columns is movably connected to the mobile vehicle body, and the other column is rotatably connected to the upper end of the mobile vehicle body. A limiting hole is arranged at the upper end of the mobile vehicle body. A limiting shaft is vertically slidably connected to one of the columns. One end of the limiting shaft cooperates with the limiting hole. An electric telescopic rod is fixed on the side wall of the other column, and the telescopic end of the electric telescopic rod is connected to the other end of the limiting shaft.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. When a pedestrian, vehicle, etc. hits the mounting plate, the buffer spring is compressed by the force, thereby buffering the hitter and protecting the hitter.

[0015] 2. When the first connecting rod and the second connecting rod fold and the second guide block moves downward, when the second guide block pushes the connecting sleeve downward, the first conductive armature contacts the second conductive armature, the alarm circuit is closed, and the alarm emits an alarm sound, sending an alarm prompt to the surrounding people, thereby rescuing the hitter in time and performing emergency maintenance on the mobile substation body, thus improving the safety of the mobile substation.

[0016] 3. When the vehicle hits the rotating plate, the rotating plate rotates against the elastic force of the tension spring, causing the impact-bearing surface of the rotating plate to tilt downward, thereby unloading the force downward and reducing the impact force of the vehicle hitting the front. Moreover, the rotating plate pushes the vehicle downward, increasing the pressure between the vehicle and the ground, thus improving the braking effect of the vehicle and reducing the impact force.

[0017] 4. When a child plays around the mobile substation and climbs on the rotating plate, the rotating plate rotates against the elastic force of the tension spring, the first conductive armature contacts the second conductive armature, the alarm circuit is closed, and the alarm emits an alarm sound, thereby dispersing the child climbing on the rotating plate and playing a warning role.

[0018] 5. When the driving block drives the connecting sleeve to move upward, the connecting sleeve drives the piston plate to move upward. The hydraulic oil at the top of the piston plate slowly moves to the bottom of the piston plate through the small holes. Under the action of the second compression spring, it plays a role in delaying the closing of the alarm. When the child does not contact the rotating plate, the alarm will also continue to sound for a short time, thereby improving the warning effect.

[0019] 6. When the second guide block moves downward, the meshing teeth engage with the ratchet rack, thereby restricting the upward movement of the ratchet rack. The ratchet rack restricts the upward movement of the second guide block, thereby restricting the rebound of the buffer spring, thus avoiding the rapid rebound of the buffer spring and preventing the rotating plate from causing secondary injury to the striker. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a protective mobile substation for grid safety protection provided by the present invention;

[0021] Figure 2 Provided by the present invention Figure 1 The internal structural schematic diagram of the mobile vehicle body in

[0022] Figure 3 Provided by the present invention Figure 2 The enlarged structural schematic diagram of A in

[0023] Figure 4 Provided by the present invention Figure 1 The structural schematic diagram of the protection mechanism in

[0024] Figure 5 Provided by the present invention Figure 4 The internal structural schematic diagram of one of the columns in

[0025] Figure 6 Provided by the present invention Figure 5 The enlarged structural schematic diagram of B in

[0026] Figure 7 Provided by the present invention Figure 6 The internal structural schematic diagram of the connecting sleeve in

[0027] Figure 8 Provided by the present invention Figure 6 The enlarged structural schematic diagram of C in

[0028] In the drawings: 101, mobile vehicle body; 102, column; 103, mounting plate; 104, first connecting rod; 105, second connecting rod; 106, first guide groove; 107, first guide block; 108, second guide groove; 109, second guide block; 110, buffer spring.

[0029] 2. Alarm structure; 201. Alarm; 202. Guide groove III; 203. Conductive armature I; 204. Conductive armature II; 205. Compression spring I; 206. Connecting sleeve; 207. Contact rod; 208. Compression spring II;

[0030] 301. Rotating plate; 302. Arc-shaped block; 303. Tension spring; 304. Guide groove IV; 305. Transmission block; 306. Transmission groove; 307. Transmission rod;

[0031] 401. Hydraulic groove; 402. Piston plate; 403. Check valve; 404. Small hole;

[0032] 501. Sliding groove; 502. Sliding block; 503. Meshing teeth; 504. Compression spring IV; 505. Pull rod; 506. Rack with ratchet teeth;

[0033] 601. Limiting shaft; 602. Electric telescopic rod; 603. Limiting hole. Detailed implementation mode

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0036] Such as Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6As shown in the figure, a protective mobile substation for power grid security provided by an embodiment of the present invention includes a mobile vehicle body 101 and a mobile substation body installed on the upper end of the mobile vehicle body 101. It further includes: four protective mechanisms arranged around the mobile substation body on the upper end of the mobile vehicle body 101, and a mounting plate 103. The protective mechanism includes two columns 102 arranged on the upper end of the mobile vehicle body 101. One end of the mounting plate 103 close to the column 102 is rotatably connected to a first connecting rod 104. The end of the first connecting rod 104 is rotatably connected to a second guide block 109. A first guide groove 106 is provided on the mounting plate 103 close to the first connecting rod 104. A second connecting rod 105 is rotatably connected to the side wall of the column 102. The middle of the second connecting rod 105 is rotatably connected to the first connecting rod 104. The end of the second connecting rod 105 is rotatably connected to a first guide block 107. The first guide block 107 is slidably connected in the first guide groove 106. A second guide groove 108 is provided on the side wall of the column 102. The second guide block 109 is slidably connected in the second guide groove 108. One end of the second guide block 109 is fixed with a buffer spring 110. The end of the buffer spring 110 is fixed in the second guide groove 108. An alarm structure 2 is provided on the mobile vehicle body 101. When the first connecting rod 104 and the second connecting rod 105 are folded, the alarm structure 2 emits an alarm sound.

[0037] In the embodiment of the present invention, during use, the four protective mechanisms surround the mobile substation body. When a pedestrian or a vehicle hits the mounting plate 103, the mounting plate 103 pushes the first connecting rod 104 and the second connecting rod 105 to fold. The first guide block 107 moves downward in the first guide groove 106, and the second guide block 109 moves downward in the second guide groove 108. The downward moving second guide block 109 compresses the buffer spring 110. The buffer spring 110 is compressed under force, thereby buffering the impact on the impactor and protecting the impactor. When the first connecting rod 104 and the second connecting rod 105 are folded, the alarm structure 2 emits an alarm sound to give an alarm prompt to the surrounding people, so as to rescue the impactor in time and perform emergency maintenance on the mobile substation body, thereby improving the safety of the mobile substation.

[0038] Such as Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, as a preferred embodiment of the present invention, the alarm structure 2 includes a connecting sleeve 206 vertically slidably connected to one of the columns 102. A contact rod 207 is slidably connected to the lower end of the connecting sleeve 206. A second compression spring 208 is fixed to the upper end of the contact rod 207, and the end of the second compression spring 208 is fixed inside the connecting sleeve 206. A third guiding groove 202 is vertically arranged at the upper end of the moving vehicle body 101. A first conductive armature 203 is slidably connected inside the third guiding groove 202. A first compression spring 205 is fixed to the bottom of the first conductive armature 203, and the end of the first compression spring 205 is fixed to the bottom of the third guiding groove 202. A second conductive armature 204 is fixed to the bottom of the third guiding groove 202. An alarm 201 is installed on the other column 102. The first conductive armature 203 and the second conductive armature 204 are connected in series in the circuit of the alarm 201. When the first conductive armature 203 contacts the second conductive armature 204, the circuit of the alarm 201 is closed.

[0039] In the embodiment of the present invention, the bottom of the second guiding block 109 is connected to the connecting sleeve 206. When the second guiding block 109 moves downward, the second guiding block 109 pushes the connecting sleeve 206 downward. The connecting sleeve 206 drives the contact rod 207 to move downward through the second compression spring 208. The contact rod 207 overcomes the elastic force of the first compression spring 205 and drives the first conductive armature 203 to move downward, so that the first conductive armature 203 contacts the second conductive armature 204, the circuit of the alarm 201 is closed, and the alarm 201 emits an alarm sound.

[0040] As Figures 3 - 7 As shown, as a preferred embodiment of the present invention, one end of the mounting plate 103 away from the column 102 is rotatably connected to a rotating plate 301. The upper part of the rotating plate 301 is rotatably connected to the mounting plate 103. An arc-shaped block 302 is fixed to the lower part of the rotating plate 301. A tension spring 303 is fixed to the arc-shaped block 302, and the end of the tension spring 303 is fixed to one end of the mounting plate 103 away from the rotating plate 301. A fourth guiding groove 304 is vertically arranged on one of the columns 102. A transmission block 305 is slidably connected inside the fourth guiding groove 304. The transmission block 305 is located between the second guiding block 109 and the connecting sleeve 206. The bottom of the connecting sleeve 206 is fixedly connected to the connecting sleeve 206. A transmission groove 306 is arranged on the transmission block 305, and the transmission groove 306 cooperates with the arc-shaped block 302. A transmission rod 307 is fixed to the bottom of the second guiding block 109.

[0041] In the embodiment of the present invention, the second guiding block 109 pushes the transmission block 305 through the transmission rod 307 at the bottom. The bottom of the transmission block 305 is connected to the connecting sleeve 206. A return spring is arranged at the bottom of the connecting sleeve 206, and the return spring is arranged inside the fourth guiding groove 304;

[0042] In the initial state, the tension spring 303 pulls the rotating plate 301 to make the rotating plate 301 in a vertical state. When the vehicle hits the rotating plate 301, the rotating plate 301 rotates against the elastic force of the tension spring 303, causing the rotating plate 301 to tilt downward with the impact surface, thereby unloading the force downward on the rotating plate 301, reducing the impact force of the vehicle hitting the front, and the rotating plate 301 pushes the vehicle downward, increasing the pressure between the vehicle and the ground, thereby improving the braking effect of the vehicle and further reducing the impact force;

[0043] When children play around the mobile substation and climb on the rotating plate 301, the rotating plate 301 rotates against the elastic force of the tension spring 303. The rotating plate 301 drives the arc-shaped block 302 to rotate. The arc-shaped block 302 overcomes the elastic force of the return spring through the transmission groove 306 and drives the transmission block 305 to move downward. The transmission block 305 drives the connecting sleeve 206 to move downward. The connecting sleeve 206 drives the contact rod 207 to move downward through the second compression spring 208. The contact rod 207 overcomes the elastic force of the first compression spring 205 and drives the conductive armature one 203 to move downward, making the conductive armature one 203 contact the conductive armature two 204. The circuit of the alarm 201 is closed, and the alarm 201 emits an alarm sound, thereby dispersing the children climbing on the rotating plate 301, thus playing a warning role. When the children move away, the rotating plate 301 is not stressed, and the tension spring 303 pulls the rotating plate 301 to reverse and reset. The return spring pushes the transmission block 305 upward. The transmission block 305 drives the connecting sleeve 206, the contact rod 207, and the second compression spring 208 to move upward and reset. The first compression spring 205 pushes the conductive armature one 203 upward and reset, making the conductive armature one 203 not contact the conductive armature two 204, and the circuit of the alarm 201 is open, and the alarm 201 stops sounding.

[0044] As Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 shown, as a preferred embodiment of the present invention, a hydraulic groove 401 is vertically arranged on one of the columns 102. Hydraulic oil is arranged in the hydraulic groove 401. A piston plate 402 is slidably connected in the hydraulic groove 401. At least one one-way valve 403 is installed on the piston plate 402. At least one small hole 404 is arranged on the piston plate 402. The piston plate 402 is fixed on the side wall of the connecting sleeve 206.

[0045] In the embodiment of the present invention, when the connecting sleeve 206 moves downward, the connecting sleeve 206 drives the piston plate 402 to move downward. The hydraulic oil at the bottom of the piston plate 402 flows to the top of the piston plate 402 through the one-way valve 403 and the small hole 404, thereby enabling the piston plate 402 to move downward quickly and improving the sensitivity of the alarm 201;

[0046] When the transmission block 305 drives the connecting sleeve 206 to move upward, the connecting sleeve 206 drives the piston plate 402 to move upward, and the hydraulic oil on the top of the piston plate 402 slowly moves to the bottom of the piston plate 402 through the small hole 404. Under the action of the compression spring 208, the alarm 201 is delayed and closed. When the child does not contact the rotating plate 301, the alarm 201 will continue to sound for a short time, thereby improving the warning effect.

[0047] like Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, as a preferred embodiment of the present invention, a ratchet bar 506 is vertically embedded on the side wall of the guide block 109, a sliding groove 501 is horizontally arranged in one of the columns 102, a sliding block 502 is slidably connected in the sliding groove 501, one end of the sliding block 502 is fixed with an engaging tooth 503, the engaging tooth 503 cooperates with the ratchet bar 506, the other end of the sliding block 502 is fixed with a compression spring 504 and a pull rod 505, the end of the compression spring 504 is fixed in the sliding groove 501, and the end of the pull rod 505 extends out of the column 102.

[0048] In the embodiment of the present invention, when the rotating plate 301 is hit, in order to prevent the buffer spring 110 from rebounding quickly, the rotating plate 301 causes secondary damage to the hitter;

[0049] When the guide block 109 moves downward, the guide block 109 drives the ratchet bar 506 to move downward. Under the guidance of the sliding groove 501, the compression spring 504 pushes the meshing tooth 503 to move, so that the meshing tooth 503 meshes with the ratchet bar 506, thereby limiting the ratchet bar 506 from moving upward. The ratchet bar 506 limits the guide block 109 from moving upward, thereby limiting the rebound of the buffer spring 110, thereby preventing the buffer spring 110 from rebounding quickly, and preventing the rotating plate 301 from causing secondary damage to the impactor. When the guide block 109 cannot move upward, the guide block 109 limits the transmission block 305 from moving upward through the transmission rod 307. The transmission block 305 restricts the connection sleeve 206, the contact rod 207 and the compression spring 208 from moving upward, so that the conductive armature 1 203 is in continuous contact with the conductive armature 2 204, so that the alarm 201 continues to sound until the surrounding construction personnel arrive at the site and pull the pull rod 505. The pull rod 505 overcomes the elastic force of the compression spring 4 504 and drives the sliding block 502 and the meshing tooth 503 away from the ratchet bar 506. The ratchet bar 506 does not mesh with the meshing tooth 503, thereby releasing the restriction on the upward movement of the ratchet bar 506, and the reset spring drives the guide block 2 109 to move upward and reset, and the alarm 201 is released.

[0050] like Figure 3and Figure 6 As shown in Figure 6 , as a preferred embodiment of the present invention, one of the columns 102 is movably connected to the moving vehicle body 101, and the other column 102 is rotatably connected to the upper end of the moving vehicle body 101. A limiting hole 603 is provided at the upper end of the moving vehicle body 101. A limiting shaft 601 is vertically slidably connected to one of the columns 102. One end of the limiting shaft 601 is matched with the limiting hole 603, and an electric telescopic rod 602 is fixed on the side wall of the other column 102. The telescopic end of the electric telescopic rod 602 is connected to the other end of the limiting shaft 601.

[0051] In the embodiment of the present invention, in the initial state, the electric telescopic rod 602 is in the extended state. The electric telescopic rod 602 drives the limiting shaft 601 to insert into the limiting hole 603, so that one of the columns 102 is fixedly connected to the moving vehicle body 101. When the construction personnel need to contact the mobile substation body, the electric telescopic rod 602 contracts, and the electric telescopic rod 602 drives the limiting shaft 601 to disengage from the limiting hole 603. At this time, one of the columns 102 can rotate with the other column 102 as the axis.

[0052] In the above embodiment of the present invention, a protective mobile substation for power grid safety protection is provided. When in use, the four protection mechanisms surround the mobile substation body. When a child plays around the mobile substation and climbs the rotating plate 301, the rotating plate 301 overcomes the elastic force of the tension spring 303 and rotates. The rotating plate 301 drives the arc-shaped block 302 to rotate. The arc-shaped block 302 overcomes the elastic force of the return spring through the transmission groove 306 and drives the transmission block 305 to move downward. The transmission block 305 drives the connecting sleeve 206 to move downward. The connecting sleeve 206 drives the contact rod 207 to move downward through the compression spring two 208. The contact rod 207 overcomes the elastic force of the compression spring one 205 and drives the conductive armature one 203 to move downward, so that the conductive armature one 203 contacts the conductive armature two 204, the circuit of the alarm 201 is closed, and the alarm 201 emits an alarm sound, thereby dispersing the child climbing the rotating plate 301, thus playing a warning role. When the child is away, the rotating plate 301 is not stressed, and the tension spring 303 pulls the rotating plate 301 to reverse and reset. When the return spring pushes the transmission block 305 upward, and the transmission block 305 drives the connecting sleeve 206 to move upward, the connecting sleeve 206 drives the piston plate 402 to move upward. The hydraulic oil at the top of the piston plate 402 slowly moves to the bottom of the piston plate 402 through the small hole 404. Under the action of the compression spring two 208, it plays a role in delaying the closing of the alarm 201. When the child does not contact the rotating plate 301, the alarm 201 will also continue to sound for a short time, thereby improving the warning effect, until the compression spring one 205 pushes the conductive armature one 203 upward to reset, so that the conductive armature one 203 does not contact the conductive armature two 204, the circuit of the alarm 201 is open, and the alarm 201 stops sounding;

[0053] When the vehicle impacts the rotating plate 301, the rotating plate 301 is caused to rotate against the elastic force of the tension spring 303, making the impact-bearing surface of the rotating plate 301 tilt downward. As a result, the rotating plate 301 unloads the force downward, reducing the intensity of the vehicle's frontal impact. Moreover, the rotating plate 301 pushes the vehicle downward, increasing the pressure between the vehicle and the ground, thereby improving the braking effect of the vehicle, further reducing the impact force. Additionally, the rotating plate 301 pushes the mounting plate 103, and the mounting plate 103 pushes the first connecting rod 104 and the second connecting rod 105 to fold. The first guiding block 107 moves downward in the first guiding groove 106, and the second guiding block 109 moves downward in the second guiding groove 108. The downward-moving second guiding block 109 squeezes the buffer spring 110, and the buffer spring 110 is compressed under the force, thereby buffering the impact on the impactor and protecting the impactor. When the first connecting rod 104 and the second connecting rod 105 fold, the second guiding block 109 moves downward, and the second guiding block 109 pushes the transmission rod 307 downward. The transmission rod 307 overcomes the elastic force of the return spring and pushes the transmission block 305 downward. The transmission block 305 drives the connecting sleeve 206 to move downward. The connecting sleeve 206 drives the contact rod 207 to move downward through the second compression spring 208. The contact rod 207 overcomes the elastic force of the first compression spring 205 and drives the conductive armature 203 to move downward, causing the conductive armature 203 to contact the conductive armature 204. The circuit of the alarm 201 is closed, and the alarm 201 emits an alarm sound, giving an alarm prompt to the surrounding personnel, thereby providing timely rescue for the impactor and performing emergency maintenance on the mobile substation body, thus improving the safety of the mobile substation;

[0054] When the second guiding block 109 moves downward, the second guiding block 109 drives the ratchet rack 506 to move downward. Under the guiding action of the sliding groove 501, the fourth compression spring 504 pushes the meshing tooth 503 to move, making the meshing tooth 503 mesh with the ratchet rack 506, thereby restricting the upward movement of the ratchet rack 506. The ratchet rack 506 restricts the upward movement of the second guiding block 109, further restricting the rebound of the buffer spring 110, thus avoiding the rapid rebound of the buffer spring 110 and preventing the rotating plate 301 from causing secondary injury to the impactor. When the second guiding block 109 cannot move upward, the second guiding block 109 restricts the upward movement of the transmission block 305 through the transmission rod 307. The transmission block 305 restricts the upward movement of the connecting sleeve 206, the contact rod 207, and the second compression spring 208, thereby keeping the conductive armature 203 in contact with the conductive armature 204, so that the alarm 201 keeps sounding until the surrounding construction personnel arrive at the scene and pull the pull rod 505.

[0055] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A protective mobile substation for power grid security protection, comprising a mobile vehicle body and a mobile substation body installed at the upper end of the mobile vehicle body, characterized in that, It further includes: Four protection mechanisms arranged around the perimeter of the upper end of the mobile vehicle body for the mobile substation body, and a mounting plate. The protection mechanism includes two columns arranged at the upper end of the mobile vehicle body. One end of the mounting plate close to the column is rotatably connected to a first connecting rod. The end of the first connecting rod is rotatably connected to a second guiding block. One end of the mounting plate close to the first connecting rod is provided with a first guiding groove. A second connecting rod is rotatably connected to the side wall of the column. The middle of the second connecting rod is rotatably connected to the first connecting rod. The end of the second connecting rod is rotatably connected to a first guiding block. The first guiding block is slidably connected in the first guiding groove. A second guiding groove is provided on the side wall of the column. The second guiding block is slidably connected in the second guiding groove. One end of the second guiding block is fixed with a buffer spring. The end of the buffer spring is fixed in the second guiding groove. An alarm structure is provided on the mobile vehicle body. When the first connecting rod and the second connecting rod are folded, the alarm structure emits an alarm sound.

2. The protective mobile substation for power grid security protection according to claim 1, wherein The alarm structure includes a connecting sleeve vertically slidably connected to one of the columns. A contact rod is slidably connected to the lower end of the connecting sleeve. A second compression spring is fixed to the upper end of the contact rod. The end of the second compression spring is fixed in the connecting sleeve. A third guiding groove is vertically provided at the upper end of the mobile vehicle body. A first conductive armature is slidably connected in the third guiding groove. A first compression spring is fixed to the bottom of the first conductive armature. The end of the first compression spring is fixed to the bottom of the third guiding groove. A second conductive armature is fixed to the bottom of the third guiding groove. An alarm is installed on another column. The first conductive armature and the second conductive armature are connected in series in the alarm circuit. When the first conductive armature and the second conductive armature are in contact, the alarm circuit is closed.

3. The protective mobile substation for power grid security protection according to claim 2, wherein, One end of the mounting plate away from the column is rotatably connected to a rotating plate. The upper part of the rotating plate is rotatably connected to the mounting plate. An arc-shaped block is fixed to the lower part of the rotating plate. A tension spring is fixed to the arc-shaped block. The end of the tension spring is fixed to one end of the mounting plate away from the rotating plate.

4. The protective mobile substation for power grid security guarantee according to claim 3, characterized in that, A fourth guiding groove is vertically provided on one of the columns. A transmission block is slidably connected in the fourth guiding groove. The transmission block is located between the second guiding block and the connecting sleeve. The bottom of the connecting sleeve is fixedly connected to the connecting sleeve. A transmission groove is provided on the transmission block. The transmission groove cooperates with the arc-shaped block. A transmission rod is fixed to the bottom of the second guiding block.

5. The protective mobile substation for power grid security guarantee according to claim 3, wherein, A hydraulic groove is vertically provided on one of the columns. Hydraulic oil is provided in the hydraulic groove. A piston plate is slidably connected in the hydraulic groove. At least one one-way valve is installed on the piston plate. At least one small hole is provided on the piston plate. The piston plate is fixed to the side wall of the connecting sleeve.

6. The protective mobile substation for power grid security guarantee according to claim 1, characterized in that, A ratchet rack is vertically embedded on the side wall of the second guiding block. A sliding groove is horizontally provided in one of the columns. A sliding block is slidably connected in the sliding groove. One end of the sliding block is fixed with a meshing tooth. The meshing tooth cooperates with the ratchet rack. A fourth compression spring and a pull rod are fixed to the other end of the sliding block. The end of the fourth compression spring is fixed in the sliding groove. The end of the pull rod extends out of the column.

7. The protective mobile substation for power grid security guarantee according to claim 1, characterized in that, One of the columns is movably connected to the mobile vehicle body. The other column is rotatably connected to the upper end of the mobile vehicle body. A limiting hole is provided at the upper end of the mobile vehicle body. A limiting shaft is vertically slidably connected to one of the columns. One end of the limiting shaft cooperates with the limiting hole. An electric telescopic rod is fixed to the side wall of the other column. The telescopic end of the electric telescopic rod is connected to the other end of the limiting shaft.

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