CN114319100A - Protection structure next to existing subway line bridge - Google Patents
Protection structure next to existing subway line bridge Download PDFInfo
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- CN114319100A CN114319100A CN202111654816.2A CN202111654816A CN114319100A CN 114319100 A CN114319100 A CN 114319100A CN 202111654816 A CN202111654816 A CN 202111654816A CN 114319100 A CN114319100 A CN 114319100A
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- 230000004224 protection Effects 0.000 title claims abstract description 29
- 230000000670 limiting effect Effects 0.000 claims description 31
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 16
- 239000007789 gas Substances 0.000 description 23
- 125000006850 spacer group Chemical group 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009979 protective mechanism Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
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Abstract
The application relates to a bridge protection structure next to an existing subway line, which belongs to the technical field of bridge protection and comprises a base plate for filling an air bag, wherein a gas generator and an air pump which are respectively communicated with the air bag are fixed on one side of the base plate; the backing plate is provided with an electric mechanism for triggering the gas generator. This application has the effect that reduces the gasbag and occupy great space.
Description
Technical Field
The application relates to the field of bridge protection, in particular to a bridge protection structure next to an existing subway line.
Background
At present, the common mode of relieving ground traffic pressure is underground traffic and ground traffic, and ground traffic generally presents with the mode of road and bridge, in order to guarantee the driving safety of road and bridge, generally can install protector in the both sides of road and bridge, avoids the vehicle in the in-process of traveling, takes place the accident that drops from the road and bridge easily.
The related technology can refer to Chinese utility model patent with the publication number of CN214882944U, which discloses a novel road and bridge protection device, comprising bilaterally symmetrical upright posts, wherein a protection plate is arranged between the two upright posts, the protection plate is a hollow cuboid structure with an open top, two sides of the protection plate are respectively fixedly connected with opposite sides of the two upright posts, an extension plate is arranged inside the protection plate, and two sides inside the protection plate are both provided with chutes; after the vehicle collided on the protector, the panel can extrude the second gasbag to can pass through the connecting pipe with the inert gas in the second gasbag and extrude first gasbag in, thereby can prop up first gasbag, can be with extension board jack-up under the effect of first gasbag, thereby the height of the increase guard plate that can be quick temporarily avoids the vehicle under the effect of external force, turns over protector easily, from the condition that falls under the road bridge.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: although the vehicle can be protected by charging air into the protective device in advance, the impact force is large when the vehicle is collided, and a large amount of air is generally required to be charged to provide a buffer effect for the vehicle, so that the protective mechanism occupies a large amount of space on a bridge, and the vehicle and pedestrians cannot pass through the protective mechanism conveniently.
Disclosure of Invention
In order to improve the great problem of protection machanism and fill into a large amount of gas and lead to occupation space, this application provides next-door neighbour's existing subway line bridge protective structure.
The application provides an existing subway line bridge protection architecture of next-door neighbour adopts following technical scheme:
the protection structure is close to the existing subway line bridge and comprises a base plate for filling an air bag, wherein a gas generator and an air pump which are respectively communicated with the air bag are fixed on one side of the base plate; and the backing plate is provided with an electric mechanism for triggering the gas generator.
Through adopting above-mentioned technical scheme, gas generator can receive the vehicle striking back at the backing plate and make gas expansion, reaches the effect that makes the gasbag inflation, and the aspiration pump can take out the gas in the gasbag, and the backing plate of being convenient for contracts when not receiving the impact to reduce the occupation space of gasbag.
Optionally, the electric power mechanism includes a guardrail arranged on one side of the base plate in a sliding manner along the width direction of the base plate; a first connecting box is fixed on one side, close to the guardrail, of the base plate, a first connecting plate connected with the first connecting box in a sliding mode is fixed on one side, close to the base plate, of the guardrail, and a first abutting sheet used for abutting against one side, far away from the guardrail, of the first connecting plate is connected with the first connecting plate in a sliding mode along the length direction of the first connecting box; a second movable plate is fixed on the side wall of the abutting plate, and a second fixed plate used for being in electric contact with the second movable plate is fixed on the inner side wall of the third sliding chute; the second moving plate is electrically connected with the gas generator, and the second fixed plate is electrically connected with a power supply.
Through adopting above-mentioned technical scheme, the guardrail can provide the cushioning effect for the vehicle, hits the guardrail back when the vehicle, and the guardrail promotes the butt piece and removes to make second and the two electrical contacts of stator, reach the purpose that switches on for gas generator, the gasbag of being convenient for is expanded after the vehicle takes place to strike with the guardrail.
Optionally, a return spring is fixed on one side, far away from the base plate, of the first connecting box, and one end, far away from the base plate, of the return spring is fixedly connected with the guardrail.
Through adopting above-mentioned technical scheme, reset spring can provide the elasticity to keeping away from backing plate one side for the guardrail, is convenient for reset to keeping away from backing plate one side through reset spring drive guardrail.
Optionally, a connecting spring is fixed on one side of the abutting piece, which is far away from the guardrail, and one end of the connecting spring, which is far away from the abutting piece, is fixedly connected with the first connecting box.
Through adopting above-mentioned technical scheme, connecting spring can provide the elasticity to being close to guardrail one side for the butt piece, is convenient for reset to being close to guardrail one side through connecting spring drive butt piece.
Optionally, the first connecting box is connected with a plurality of baffles in a sliding manner along the width direction of the first connecting box, and the baffles are used for abutting against the first connecting plate; the end part of the baffle is fixed with a magnetic attraction sheet; a plurality of electromagnets used for adsorbing the magnetic attraction pieces are embedded in the first connecting box; a first moving plate is fixed on the side wall of the connecting plate, and a plurality of first fixed plates which are electrically contacted with the first moving plate are fixed on the inner side wall of the connecting box; the electromagnets are respectively electrically connected with the first moving plate; the first stator is electrically connected with a power supply.
Through adopting above-mentioned technical scheme, the baffle can block the effect for connecting plate one provides, reduces the guardrail and is touched by the mistake and cause the possibility of removing, and the connecting plate is direct for a moment and is contacted with the butt piece. When the impact that the guardrail received is great, the baffle receives the attraction of electro-magnet and takes place to remove the back, and the connecting plate one still can be to being close to butt plate one side removal under the impact force effect to realize that the connecting plate one contacts with the butt plate.
Optionally, a first guide piece is fixed on one side, close to the guardrail, of the baffle, a compression spring is fixed on one side, far away from the connecting plate, of the first guide piece, and one end, far away from the first guide piece, of the compression spring is fixedly connected with the first connecting box.
Through adopting above-mentioned technical scheme, compression spring restores to the throne to being close to the connecting plate one-to-one for the baffle provides elasticity, and the back is closed to the electro-magnet of being convenient for, and the baffle can restore to the throne to being close to the connecting plate one-to-one.
Optionally, the first connecting box is connected with a limiting piece in a sliding manner along the length direction of the guardrail; the side wall of the abutting sheet is provided with a first through hole for penetrating the limiting sheet; a limiting block which is used for being inserted with one side of the limiting sheet away from the guardrail is fixed on one side of the first through hole away from the guardrail; the first connecting box is connected with the positioning sheet in a sliding manner along the length direction of the first connecting box; the opposite inner sides of the positioning sheet and the limiting sheet are respectively provided with an inclined plane; the first connecting box is connected with a sliding sheet in a sliding manner along the length direction of the guardrail; a second through hole for penetrating the sliding sheet is formed in the side wall of the positioning sheet; a stop block for being inserted with the sliding sheet is fixed on the side wall of the second through hole, which is far away from the guardrail; a third spring is fixed at one end of the sliding sheet far away from the abutting sheet, and one end of the third spring far away from the sliding sheet is fixedly connected with the first connecting box; a third stator is fixed in the first connecting box and electrically connected with a power supply; and a third moving plate for electrically contacting with the third fixed plate is fixed at one end of the sliding plate close to the third fixed plate, and the third moving plate is electrically connected with the air pump.
Through adopting above-mentioned technical scheme, the butt plate removes the back, and the spacing piece that loses limiting displacement can support and press the spacer to make the slide piece lose limiting displacement. When the first connecting plate is separated from the first connecting box, the third moving plate is electrically contacted with the third fixed plate by the sliding sheet, so that the air suction pump is conducted with the power supply, and the air in the air bag is conveniently discharged.
Optionally, a second guide piece is fixed at the top of the limiting piece, and the second guide piece is connected with the first connecting box in a sliding manner along the length direction of the guardrail; and a first spring is fixed on one side of the second guide sheet far away from the abutting sheet, and one end of the first spring far away from the second guide sheet is fixedly connected with the first connecting box.
Through adopting above-mentioned technical scheme, spring one provides to keeping away from the elasticity of butt plate one side for spacing piece, and the spacing piece of being convenient for loses the limiting displacement after, with the spacer butt under the effect of spring one.
Optionally, a second spring is fixed on one side of the positioning plate, which is close to the guardrail, and one end of the second spring, which is close to the guardrail, is communicated with the first connecting box for fixed connection.
Through adopting above-mentioned technical scheme, spring two provides the elasticity to keeping away from guardrail one side for the spacer, and the spacing piece of being convenient for is separated the back with the spacer, can reset through two drive spacers of spring.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the gas generator can expand gas after the backing plate is impacted by a vehicle to achieve the effect of expanding the air bag, and the air pump can pump out the gas in the air bag, so that the backing plate can be conveniently contracted when not impacted, and the occupied space of the air bag is reduced;
2. the guardrail can provide a buffer effect for the vehicle, and when the vehicle hits the guardrail, the guardrail pushes the abutting sheet to move, so that the second moving sheet is in electrical contact with the second fixed sheet, the purpose of conducting the gas generator is achieved, and the gas bag can be conveniently expanded after the vehicle collides with the guardrail;
3. the baffle can be for connecting plate one provide the effect of blockking, reduces the guardrail and is touched by the mistake and cause the possibility of removing, and the connecting plate is direct for a moment and is contacted with the butt piece. When the impact that the guardrail received is great, the baffle receives the attraction of electro-magnet and takes place to remove the back, and the connecting plate one still can be to being close to butt plate one side removal under the impact force effect to realize that the connecting plate one contacts with the butt plate.
Drawings
Fig. 1 is a schematic structural diagram of a bridge protection structure according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a backing plate according to an embodiment of the present application.
Fig. 3 is a cross-sectional view of a first junction box of an embodiment of the present application.
Fig. 4 is an enlarged schematic view at a in fig. 2.
Reference numerals: 1. a base plate; 11. a return spring; 12. a second connection box; 13. a gas generator; 14. an air pump; 2. a guardrail; 21. a first connecting plate; 22. a second connecting plate; 3. a first connecting box; 4. an electric power mechanism; 41. a first sliding chute; 42. a second chute; 5. a magnetic component; 51. a baffle plate; 52. an electromagnet; 53. a magnetic attraction sheet; 54. a first moving plate; 55. fixing a first plate; 56. a first guide sheet; 57. a first guide groove; 6. abutting the sheet; 61. a third chute; 62. a fourth chute; 63. a first spring; 64. a connecting spring; 7. a limiting sheet; 71. punching a first hole; 72. a second guide sheet; 73. a second guide groove; 8. positioning plates; 81. a fifth chute; 82. a bevel; 83. a second spring; 9. a compression spring; 91. a sixth chute; 92. a sliding sheet; 93. punching a second hole; 94. and a third spring.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses next to existing subway line bridge protective structure. Referring to fig. 1, the protection structure for the bridge next to the existing subway line comprises a base plate 1 and a guardrail 2 arranged on one side of the base plate 1 and sliding along the width direction of the base plate 1. The guardrail 2 can provide the cushioning effect for the collision between the vehicle and the base plate 1, and reduce the contact area when the vehicle collides with the surface of the bridge.
Referring to fig. 1 and 2, a first connecting box 3 and a second connecting box 12 are fixed on one side of the cushion plate 1 close to the guardrail 2; a first connecting plate 21 and a second connecting plate 22 are fixed on one side of the guardrail 2 close to the base plate 1; the first connecting plate 21 is connected with the first connecting box 3 in a sliding mode, and the second connecting plate 22 is connected with the second connecting box 12 in a sliding mode; a return spring 11 is respectively fixed on one side of the first connecting box 3 and the second connecting box 12 away from the base plate 1, and one end of the return spring 11 away from the base plate 1 is respectively fixedly connected with the guardrail 2; the sliding connection between the second connecting box 12 and the connecting plate provides a guiding function for the movement of the guardrail 2. A gas generator 13 and an air pump 14 which are respectively communicated with the air bag are fixed on one side of the cushion plate 1 away from the guardrail 2; the base plate 1 is filled with an air bag, and one side of the base plate 1, which is close to the guardrail 2, is provided with a strip-shaped through hole for penetrating the air bag; the gas generator 13 can rapidly expand the internal gas after being ignited, thereby achieving the effect of inflating the air bag; the suction pump 14 is used to pump out the gas of the airbag. The first connecting box 3 is internally provided with an electric mechanism 4 for supplying power to the gas generator 13.
Referring to fig. 2 and 3, the power mechanism 4 includes a plurality of sets of magnetic attraction members 5 arranged along the length of the first connection box 3. The first connecting box 3 is provided with a first sliding groove 41 which is connected with the first connecting plate 21 in a sliding manner along the length direction of the first connecting box. The opposite side walls of the first sliding groove 41 are respectively provided with a plurality of second sliding grooves 42 along the length direction. The magnetic attraction component 5 comprises a baffle 51 connected with the first connecting box 3 in a sliding manner along the width direction of the first connecting box 3 through the second sliding groove 42 and an electromagnet 52 fixed on the inner wall of one side, far away from the first sliding groove 41, of the second sliding groove 42. A magnetic piece 53 which is used for adsorbing the electromagnet 52 is fixed on one side of the baffle 51 close to the electromagnet 52; when the guardrail 2 is stressed to slide towards one side close to the base plate 1, the baffle plate 51 can provide a blocking effect for the first connecting plate 21, and the baffle plate 51 is prevented from moving towards one side close to the electromagnet 52; after the electromagnet 52 is conducted, the electromagnet 52 adsorbs the magnetic attraction piece 53, so that the blocking effect of the file on the connecting piece can be relieved. The side wall of the first connecting plate 21 is fixed with a first moving plate 54, and the inner side wall of the first connecting box 3 is fixed with a plurality of first fixed plates 55 which are used for being electrically contacted with the first moving plates 54. The two electromagnets 52 which are oppositely arranged are electrically connected with the first moving plate 54 after being connected in series; the stator plate one 55 is electrically connected with a power supply.
Referring to fig. 2 and 3, a first guide piece 56 is fixed on one side of the baffle 51 close to the guardrail 2, a first guide groove 57 is formed in the side wall of the second sliding groove 42 close to the guardrail 2, and the first guide piece 56 is connected with the first connecting box 3 in a sliding manner along the length direction of the guardrail 2 through the first guide groove 57; the guide slot provides a guide for the first guide tab 56. A compression spring 9 is fixed on one side, away from the connecting plate I21, of the first guide sheet 56, and one end, away from the first guide sheet 56, of the compression spring 9 is fixedly connected with the first connecting box 3 through a first guide groove 57; the compression spring 9 provides the shutter 51 with an elastic force toward the side away from the electromagnet 52.
Referring to fig. 2 and 3, the inner side wall of the first connecting box 3 far away from the guardrail 2 is provided with three sliding grooves 61, and the first connecting box 3 is connected with the abutting piece 6 through the three sliding grooves 61 in a sliding manner along the length direction of the first connecting box. And a second moving plate is fixed on the side wall of the abutting plate 6, and a second fixed plate for electrically contacting with the second moving plate is fixed on the inner side wall of the third sliding groove 61. The second moving plate is electrically connected with the gas generator 13 and is used for igniting the gas generator 13. The second stator is electrically connected with a power supply. And a connecting spring 64 is fixed on one side of the abutting sheet 6, which is far away from the guardrail 2, and one end of the connecting spring 64, which is far away from the abutting sheet 6, is fixedly connected with the first connecting box 3 through the third sliding groove 61.
Referring to fig. 3 and 4, a fourth sliding groove 62 is formed in the inner side wall of the third sliding groove 61, and the first connecting box 3 is connected with a limiting piece 7 in a sliding manner along the length direction of the guardrail 2 through the fourth sliding groove 62; the side wall of the abutting sheet 6 is provided with a first through hole 71 for penetrating the limiting sheet 7; a limiting block which is used for being inserted with the limiting piece 7 at one side far away from the guardrail 2 is fixed at one side of the first through hole 71 far away from the guardrail 2; when the abutting sheet 6 does not move, the abutting sheet 6 provides a limiting effect for the limiting sheet 7, and the limiting sheet 7 is prevented from moving towards the sliding groove IV 62. The top of the limiting piece 7 is fixed with a second guide piece 72, the top surface of the fourth sliding groove 62 is provided with a second guide groove 73, and the second guide piece 72 is connected with the first connecting box 3 in a sliding manner along the length direction of the guardrail 2 through the second guide groove 73; the second guide groove 73 provides a guide function for the second guide piece 72. And a first spring 63 is fixed on one side of the second guide sheet 72, which is far away from the abutting sheet 6, and one end of the first spring 63, which is far away from the second guide sheet 72, is fixedly connected with the first connecting box 3 through a second guide groove 73.
Referring to fig. 3 and 4, a fifth sliding groove 81 is formed in one side, close to the guardrail 2, of the fourth sliding groove 62, and the first connecting box 3 is connected with the positioning piece 8 in a sliding mode along the length direction of the first connecting box through the fifth sliding groove 81; the opposite inner sides of the positioning plate 8 and the limiting plate 7 are respectively provided with an inclined plane 82. A second spring 83 is fixed on one side of the positioning plate 8 close to the guardrail 2, and one end of the second spring 83 close to the guardrail 2 is fixedly connected with the first connecting box 3 through a fifth chute 81; the second spring 83 applies upward elastic force to the positioning plate 8, so that the positioning plate 8 and the limiting plate 7 can be separated from the positioning plate 8 and can be reset to one side far away from the guardrail 2.
Referring to fig. 3 and 4, the inner wall of the third sliding groove 61 close to the fourth sliding groove 62 is provided with a sixth sliding groove 91 communicated with the fifth sliding groove 81, and the first connecting box 3 is connected with a sliding sheet 92 in a sliding manner along the length direction of the guardrail 2 through the sixth sliding groove 91. The side wall of the positioning plate 8 is provided with a second through hole 93 for penetrating the sliding plate 92. And a third spring 94 is fixed at one end of the sliding sheet 92 far away from the abutting sheet 6, and one end of the third spring 94 far away from the sliding sheet 92 is fixedly connected with the first connecting box 3 through a sixth sliding groove 91. The lateral wall of two through holes 93 far away from 2 one sides of guardrails is fixed with a stop block, and the slot for inserting with the stop block is arranged on one side of the sliding sheet 92 close to 2 guardrails. The positioning piece 8 is used for providing a limiting effect for the sliding piece 92 and preventing the limiting piece 7 from moving to the side close to the abutting piece 6. A third fixed plate is fixed on the side wall of the first sliding groove 41 far away from the sixth sliding groove 91 and is electrically connected with a power supply; and a third moving plate for electrically contacting with the third stator plate is fixed at one end of the sliding plate 92 close to the third stator plate, and the third moving plate is electrically connected with the air extracting pump 14.
The implementation principle of the protection structure adjacent to the existing subway line bridge is as follows:
when the guardrail 2 moves close to one side of the base plate 1 under the thrust exerted by the vehicle, the connecting plate one 21 moves and the moving piece one 54 is in electric contact with one of the fixed pieces one 55, so that the electromagnet 52 is electrified, and the electromagnet 52 adsorbs the magnetic attraction piece 53 and drives the baffle plate 51 to move. The barrier 51 retracts into the second slot 42 after providing a barrier to the fence 2 for a relatively short period of time. The first connecting plate 21 continues to move and the first moving plate 54 is in electrical contact with the first other fixed plate 55, and the process is repeated until all the baffles 51 are retracted into the second sliding grooves 42.
If the impact force applied to the guardrail 2 is small, and the impact force applied to the guardrail 2 is reduced or eliminated in the process of collision between the connecting plate one 21 and the baffle 51, the connecting plate one 21 cannot drive the moving plate one 54 to contact with all the fixed plates one 55. By providing the multiple layers of the baffle 51, the airbag inflation caused by the erroneous touch of the guard rail 2 can be prevented.
The first connecting plate 21 presses the abutting sheet 6 after continuously moving, and pushes the abutting sheet 6 to move. And in the moving process of the abutting sheet 6, the second movable sheet is electrically contacted with the second fixed sheet, so that the gas generator 13 is conducted, the gas generator 13 inflates the air bag to expand the air bag, and the buffering effect is provided for the vehicle through the air bag.
After the contact sheet 6 moves, the limiting sheet 7 losing limiting effect contacts with the positioning sheet 8, and pushes the positioning sheet 8 to move towards one side close to the guardrail 2, so that the sliding sheet 92 loses limiting effect. The sliding piece 92 moves and abuts against the first connecting plate 21.
After the guardrail 2 is pulled out, the sliding sheet 92 is not blocked by the first connecting plate 21. The slider plate 92 moves and brings the moving plate three into electrical contact with the stator plate three, thereby operating the suction pump 14. The air pump 14 discharges the air in the air bag.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. Next-door neighbour has subway line bridge protection architecture, including backing plate (1) that is used for packing the gasbag, its characterized in that: a gas generator (13) and a suction pump (14) which are respectively communicated with the air bag are fixed on one side of the backing plate (1); the backing plate (1) is provided with an electric power mechanism (4) for triggering the gas generator (13).
2. The bridge protection structure next to an existing subway line according to claim 1, wherein: the electric power mechanism (4) comprises a guardrail (2) which is arranged on one side of the base plate (1) in a sliding manner along the width direction of the base plate (1); a first connecting box (3) is fixed on one side, close to the guardrail (2), of the base plate (1), a first connecting plate (21) connected with the first connecting box (3) in a sliding mode is fixed on one side, close to the base plate (1), of the guardrail (2), and a butting sheet (6) used for butting against one side, far away from the guardrail (2), of the first connecting plate (21) is connected with the first connecting box (3) in a sliding mode along the length direction of the first connecting plate (3); a second moving plate is fixed on the side wall of the abutting plate (6), and a second fixed plate for electrically contacting with the second moving plate is fixed in the first connecting box (3); the second moving plate is electrically connected with the gas generator (13), and the second fixed plate is electrically connected with a power supply.
3. The bridge protection structure next to an existing subway line according to claim 2, wherein: one side, far away from backing plate (1), of connecting box (3) is fixed with reset spring (11), reset spring (11) are kept away from backing plate (1) one end with guardrail (2) fixed connection.
4. The bridge protection structure next to an existing subway line according to claim 2, wherein: and a connecting spring (64) is fixed on one side, far away from the guardrail (2), of the abutting sheet (6), and one end, far away from the abutting sheet (6), of the connecting spring (64) is fixedly connected with the first connecting box (3).
5. The bridge protection structure next to an existing subway line according to claim 2, wherein: the first connecting box (3) is connected with a plurality of baffle plates (51) which are used for being abutted with the first connecting plate (21) in a sliding mode along the width direction of the first connecting box; a magnetic attraction sheet (53) is fixed at the end part of the baffle (51); a plurality of electromagnets (52) used for adsorbing the magnetic adsorption sheets (53) are embedded in the first connecting box (3); a first moving plate (54) is fixed on the side wall of the first connecting plate (21), and a plurality of first fixed plates (55) for electrically contacting with the first moving plate (54) are fixed on the inner side wall of the first connecting box (3); the electromagnets (52) are respectively and electrically connected with the first moving plates (54); the stator piece I (55) is electrically connected with a power supply.
6. The bridge protection structure next to an existing subway line according to claim 5, wherein: the baffle (51) is close to guardrail (2) one side is fixed with guide piece (56), guide piece (56) keep away from connecting plate (21) one side is fixed with compression spring (9), compression spring (9) keep away from guide piece (56) one end with connecting box (3) fixed connection.
7. The bridge protection structure next to an existing subway line according to claim 5, wherein: the first connecting box (3) is connected with a limiting piece (7) in a sliding manner along the length direction of the guardrail (2); a first through hole (71) for penetrating the limiting sheet (7) is formed in the side wall of the abutting sheet (6); a limiting block which is used for being inserted into one side of the limiting piece (7) far away from the guardrail (2) is fixed on one side of the first through hole (71) far away from the guardrail (2); the first connecting box (3) is connected with a positioning sheet (8) in a sliding manner along the length direction of the first connecting box; the opposite inner sides of the positioning sheet (8) and the limiting sheet (7) are respectively provided with an inclined plane (82); the first connecting box (3) is connected with a sliding sheet (92) in a sliding manner along the length direction of the guardrail (2); a second through hole (93) for penetrating the sliding sheet (92) is formed in the side wall of the positioning sheet (8); a stop block for being inserted into the sliding sheet (92) is fixed on the side wall of the second through hole (93) far away from the guardrail (2); a third spring (94) is fixed at one end, far away from the abutting piece (6), of the sliding piece (92), and one end, far away from the sliding piece (92), of the third spring (94) is fixedly connected with the first connecting box (3); a third stator is fixed in the first connecting box (3) and is electrically connected with a power supply; and a third moving plate for electrically contacting with the third fixed plate is fixed at one end of the sliding plate (92) close to the third fixed plate, and the third moving plate is electrically connected with the air pump (14).
8. The bridge protection structure next to an existing subway line according to claim 7, wherein: a second guide piece (72) is fixed at the top of the limiting piece (7), and the second guide piece (72) is connected with the first connecting box (3) in a sliding manner along the length direction of the guardrail (2); one side, far away from the abutting piece (6), of the second guide piece (72) is fixedly provided with a first spring (63), and one end, far away from the second guide piece (72), of the first spring (63) is fixedly connected with the first connecting box (3).
9. The bridge protection structure next to an existing subway line according to claim 7, wherein: the positioning plate (8) is close to one side of the guardrail (2) and is fixedly provided with a second spring (83), and one end of the second spring (83) close to the guardrail (2) is communicated with the first connecting box (3) in a fixed connection mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111654816.2A CN114319100A (en) | 2021-12-30 | 2021-12-30 | Protection structure next to existing subway line bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111654816.2A CN114319100A (en) | 2021-12-30 | 2021-12-30 | Protection structure next to existing subway line bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114319100A true CN114319100A (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111654816.2A Granted CN114319100A (en) | 2021-12-30 | 2021-12-30 | Protection structure next to existing subway line bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114319100A (en) |
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