A multifunctional maintenance trolley for subway stations

Abstract

The present invention is applicable to the technical field of subway station maintenance, and provides a multifunctional subway station maintenance trolley, including a mounting plate, and four support columns fixed to the upper end of the mounting plate, the upper ends of the four support columns are fixed with a platform plate, and also includes: a height adjustment structure, the height adjustment structure is used to adjust the height of the mounting plate; and a water tank, the platform plate is provided with two swing arm spraying mechanisms connected to the water tank; the swing arm spraying mechanism includes a fixed water pipe fixed to the upper end of the platform plate, one end of the fixed water pipe is connected to the water tank through a hose and a booster pump, and the other end of the fixed water pipe is slidably connected with a telescopic water pipe 1, and the telescopic water pipe 1 and the fixed water pipe are both provided with multiple spray ports; a guide sleeve is fixed on the mounting plate. The present invention can adjust the spray width and height of the multifunctional subway station maintenance trolley, and compared with the existing on-site assembled maintenance trolley, the present invention is simple to operate and easy to use.

Description

Technical Field

[0001] The invention belongs to the technical field of subway station maintenance, and in particular relates to a multifunctional subway station maintenance trolley. Background Art

[0002] When a subway station is being built, concrete is poured underground for the top slab, middle slab and side walls. After the top slab, middle slab and side walls are poured with concrete, they need to be cured. Concrete curing is to artificially create certain humidity and temperature conditions so that the newly poured concrete can harden and increase its strength normally or accelerate its hardening and strength.

[0003] The existing Chinese utility model patent (CN 213392193 U) discloses a multifunctional fully automatic maintenance trolley for a subway station, which includes a lateral maintenance trolley, a widened maintenance trolley and a column side maintenance trolley. The trolleys are arranged and combined according to the subway section, so as to be suitable for subway protection of different sections. The shape of the spray pipe is designed, assembled and aligned according to the shape of the subway section. When the main structure construction is completed and the support system and the template are removed, the maintenance trolley walking route is designed according to the span of the top plate or the middle plate and the trolley track is laid. The travel system is used to spray according to the predetermined walking route at regular intervals. The spraying is performed by atomizing the water in the water tank through a fogging host and spraying it onto the top plate, middle plate and side wall of the subway station through a nozzle arranged on the spray pipe.

[0004] Although the above method can spray and maintain the roof, middle plate and side wall of the subway station, it is necessary to assemble the lateral maintenance trolley, widened maintenance trolley and column side maintenance trolley on site according to the subway section when in use. The workload of on-site assembly is large, which makes it more troublesome to use and also makes the maintenance trolley large in size and inconvenient to transport. Summary of the invention

[0005] The purpose of the embodiment of the present invention is to provide a multifunctional maintenance trolley for a subway station, aiming to solve the problem that the existing maintenance trolleys for subway stations need to be assembled on site during use, which is inconvenient to use.

[0006] The present invention is implemented as follows: a multifunctional maintenance trolley for a subway station comprises a mounting plate, and four supporting columns fixed to the upper end of the mounting plate, the upper ends of the four supporting columns are fixed with a platform plate, and further comprises: a height adjustment structure, the height adjustment structure is used to adjust the height of the mounting plate; and a water tank, the platform plate is provided with two swing arm spraying mechanisms connected with the water tank; the swing arm spraying mechanism comprises a fixed water pipe fixed to the upper end of the platform plate, one end of the fixed water pipe is connected to the water tank through a hose and a booster pump, and the other end of the fixed water pipe is slidably connected with a telescopic water pipe 1, and a plurality of spraying ports are provided on the telescopic water pipe 1 and the fixed water pipe; A guide sleeve is fixed, and an L-shaped supporting plate is slidably connected inside the guide sleeve, and one end of the L-shaped supporting plate is fixed on the telescopic water pipe 1; a U-shaped rotating block is rotatably connected to the L-shaped supporting plate, and a swinging water pipe is fixed to the end of the U-shaped rotating block, and the swinging water pipe is connected to the end of the telescopic water pipe 1 through a hose and a check valve, and a telescopic water pipe 2 is slidably connected inside the swinging water pipe, and a plurality of spraying ports are provided on the telescopic water pipe 2 and the swinging water pipe; a rotating structure and a follow-up telescopic structure are provided on the L-shaped supporting plate, and when the mounting plate moves up and down, the follow-up telescopic structure drives the telescopic water pipe 2 to extend or retract into the swinging water pipe, and the rotating structure is used to drive the U-shaped rotating block to rotate.

[0007] A further technical solution is that the height adjustment structure includes a mobile platform and four guide columns fixed on the upper end of the mobile platform, the four guide columns are slidably connected with a mounting plate, and the water tank is fixed on the mobile platform; a driving assembly is provided on the mobile platform, and under the guiding action of the four guide columns, the driving assembly drives the mounting plate to move up and down.

[0008] According to a further technical solution, the driving assembly includes a guide slot 1 arranged at the upper end of the mobile platform, a sliding block 1 is slidably connected in the guide slot 1; a connecting rod 1 is rotatably connected to the upper end of the sliding block 1, a connecting rod 2 is rotatably connected to the upper end of the mobile platform, and the connecting rod 2 is rotatably connected to the middle part of the connecting rod 1; a screw rod 1 is rotatably connected in the guide slot 1, the screw rod 1 penetrates through and is threadedly connected to the sliding block 1, a motor is fixed on the side wall of the mobile platform, and the rotating end of the motor is fixedly connected to the screw rod 1.

[0009] According to a further technical solution, an inlet and an outlet are arranged on the platform plate, a climbing frame is fixed at the lower end of the platform plate at the inlet and an outlet, a fixing bolt is threadedly connected to the guide sleeve, and the end of the fixing bolt abuts against the L-shaped support plate.

[0010] A further technical solution is that the rotating structure includes two guide grooves arranged on the side wall of the L-shaped support plate, and two sliding blocks slidably connected inside the L-shaped support plate; two screws are rotatably connected to the L-shaped support plate, and the two screws pass through and are threadedly connected to the two sliding blocks; three connecting rods are rotatably connected to the two sliding blocks, and the end of the three connecting rods is rotatably connected to the U-shaped rotating block.

[0011] A further technical solution is that a limiting assembly is provided on the L-shaped support plate; the limiting assembly includes a U-shaped limiting block horizontally slidingly connected to the L-shaped support plate, and the U-shaped limiting block is provided with a U-shaped groove matching the outer contour of the U-shaped rotating block; a compression spring is fixedly connected to the U-shaped limiting block, and the end of the compression spring is fixed to the L-shaped support plate; a pushing plate is horizontally slidingly connected to the L-shaped support plate, a reversing wheel is rotatably connected to the side wall of the L-shaped support plate, and a connecting rope is fixed on the pushing plate, and the connecting rope passes around the reversing wheel and is fixed to the U-shaped limiting block.

[0012] A further technical solution is that the follow-up telescopic structure includes a bevel gear 2 and a rotating rod rotatably connected to the side wall of the L-shaped support plate; the rotating rod is horizontally arranged, and the bevel gear 2 is fixed on the rotating rod, and the bevel gear 2 is meshed with the bevel gear 3; a fixed threaded sleeve is fixed on the telescopic water pipe 2, and a screw 3 is rotatably connected to the swinging water pipe, and the screw 3 is threadedly connected to the fixed threaded sleeve; a bevel gear 1 is fixed on the screw 3, and the bevel gear 1 is meshed with the bevel gear 2; a transmission assembly is arranged on the mounting plate, and when the mounting plate moves up and down, the transmission assembly drives the rotating rod to rotate forward and reverse.

[0013] A further technical solution is that the transmission assembly includes a rack embedded and fixed on the side wall of the guide column, and a transmission shaft rotatably connected to the upper end of the mounting plate; a gear is fixed on the transmission shaft, and the gear is meshed with the rack; a rotating sleeve is rotatably connected to the lower end of the platform plate, and the rotating rod passes through and is slidably connected to the rotating sleeve; synchronous pulleys are fixed on the rotating sleeve and the transmission shaft, and the two synchronous pulleys are connected by synchronous belt transmission.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When the side wall of the subway station needs to be maintained, the check valve between the swing water pipe and the telescopic water pipe 1 is opened to connect the swing water pipe and the telescopic water pipe 1. When maintaining one side wall, the check valve between the swing water pipe and the telescopic water pipe 1 on a swing arm spraying mechanism is opened. When maintaining the side walls on both sides, the check valves between the swing water pipe and the telescopic water pipe 1 on the two swing arm spraying mechanisms are opened, so that the side wall of the subway station can be maintained;

[0016] 2. The height adjustment structure adjusts the height of the mounting plate. The mounting plate adjusts the height of the platform plate through the support column. The platform plate adjusts the height of the fixed water pipe, the telescopic water pipe 1, the swing water pipe and the telescopic water pipe 2, so that the multifunctional maintenance trolley of the subway station can maintain concrete at different heights;

[0017] 3. When the mounting plate moves up and down, the follow-up telescopic structure drives the telescopic water pipe 2 to extend or retract into the swinging water pipe, so that the total height of the swinging water pipe and the telescopic water pipe 2 is adaptively adjusted according to the height of the platform plate, which is convenient for spraying and maintaining the side walls of the subway station. The L-shaped support plate is pulled out, and the L-shaped support plate drives the telescopic water pipe 1 to move horizontally, thereby adjusting the total length of the telescopic water pipe 1 and the fixed water pipe, so that the spraying width of the multifunctional maintenance trolley of the subway station is adapted to the width of the top plate or middle plate of the subway station;

[0018] 4. When the subway station maintenance requires wider spray maintenance, the rotating structure drives the U-shaped rotating block to rotate until the U-shaped rotating block rotates to a horizontal state. At this time, the U-shaped rotating block drives the swinging water pipe and the telescopic water pipe to rotate to a horizontal state, thereby further adjusting the width of the subway station concrete maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a multifunctional maintenance trolley for a subway station provided by the present invention;

[0020] Figure 2 The present invention provides Figure 1 Schematic diagram of the structure from the rear side angle;

[0021] Figure 3 The present invention provides Figure 1 Schematic diagram of the structure after removing the water tank;

[0022] Figure 4 The present invention provides Figure 1 Schematic diagram of the structure of the upper end of the mobile platform;

[0023] Figure 5 The present invention provides Figure 1 Structural schematic diagram of the middle swing arm spraying mechanism;

[0024] Figure 6 The present invention provides Figure 5 A is a schematic diagram of the enlarged structure of the middle part;

[0025] Figure 7 The present invention provides Figure 5 Schematic diagram of the internal structure of the middle L-shaped support plate;

[0026] Figure 8 The present invention provides Figure 7Schematic diagram of the enlarged structure of B;

[0027] Fig. 9 The present invention provides Figure 5 Schematic diagram of the structure from the rear side angle;

[0028] Fig.10 The present invention provides Fig. 9 Schematic diagram of the enlarged structure of C in the figure.

[0029] In the attached drawings: mobile platform 101, guide column 102, mounting plate 103, support column 104, platform plate 105, water tank 106, fixed water pipe 107, telescopic water pipe 1 108, L-shaped support plate 109, U-shaped rotating block 110, swinging water pipe 111, telescopic water pipe 2 112, guide sleeve 113, fixing bolt 114, climbing frame 115, inlet and outlet 116, height adjustment structure 2, guide slide 1 201, sliding block 1 202, connecting rod 1 203, connecting rod 2 204, screw 1 205, motor 206, rotating structure 3, Guide slide groove 2 301, sliding block 2 302, connecting rod 3 303, screw 2 304, limit assembly 4, U-shaped limit block 401, compression spring 402, U-shaped groove 403, push plate 404, reversing wheel 405, connecting rope 406, follow-up telescopic structure 5, fixed threaded sleeve 501, screw 3 502, bevel gear 1 503, bevel gear 2 504, rotating rod 505, bevel gear 3 506, transmission assembly 6, synchronous pulley 601, synchronous belt 602, transmission shaft 603, gear 604, rack 605, rotating sleeve 606. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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 intended to limit the present invention.

[0031] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0032] like Figure 1-Figure 5As shown, a multifunctional maintenance trolley for a subway station provided by an embodiment of the present invention includes a mounting plate 103, and four support columns 104 fixed on the upper end of the mounting plate 103, and a platform plate 105 is fixed on the upper ends of the four support columns 104, and also includes: a height adjustment structure 2, the height adjustment structure 2 is used to adjust the height of the mounting plate 103; and a water tank 106, the platform plate 105 is provided with two swing arm spraying mechanisms connected to the water tank 106; the swing arm spraying mechanism includes a fixed water pipe 107 fixed on the upper end of the platform plate 105, one end of the fixed water pipe 107 is connected to the water tank 106 through a hose and a booster pump, and the other end of the fixed water pipe 107 is slidably connected to a telescopic water pipe 108, and a plurality of spraying ports are provided on the telescopic water pipe 108 and the fixed water pipe 107; the mounting plate 103 is fixed There is a guide sleeve 113, in which an L-shaped support plate 109 is slidably connected, and one end of the L-shaped support plate 109 is fixed on the telescopic water pipe 108; a U-shaped rotating block 110 is rotatably connected to the L-shaped support plate 109, and a swinging water pipe 111 is fixed to the end of the U-shaped rotating block 110, and the swinging water pipe 111 is connected to the end of the telescopic water pipe 108 through a hose and a check valve, and a telescopic water pipe 2 112 is slidably connected in the swinging water pipe 111, and a plurality of spraying ports are provided on the telescopic water pipe 2 112 and the swinging water pipe 111; a rotating structure 3 and a follow-up telescopic structure 5 are provided on the L-shaped support plate 109, and when the mounting plate 103 moves up and down, the follow-up telescopic structure 5 drives the telescopic water pipe 2 112 to extend or retract into the swinging water pipe 111, and the rotating structure 3 is used to drive the U-shaped rotating block 110 to rotate.

[0033] In the embodiment of the present invention, when in use, the multifunctional maintenance trolley of the subway station is moved to the position where concrete maintenance is required in the subway station. When the side wall of the subway station needs to be maintained, the check valve between the swinging water pipe 111 and the telescopic water pipe 108 is opened to connect the swinging water pipe 111 with the telescopic water pipe 108. When maintaining one side wall, the check valve between the swinging water pipe 111 and the telescopic water pipe 108 on one swing arm spraying mechanism is opened. When maintaining the side walls on both sides, the check valves between the swinging water pipe 111 and the telescopic water pipe 108 on the two swing arm spraying mechanisms are opened. According to the requirements, the height adjustment structure 2 adjusts the height of the mounting plate 103, and the mounting plate 103 is connected to the support column 104. The height of the platform plate 105 is adjusted. The platform plate 105 adjusts the heights of the fixed water pipe 107, the telescopic water pipe 1 108, the swinging water pipe 111 and the telescopic water pipe 2 112, so that the multifunctional maintenance trolley of the subway station can maintain concrete at different heights. When the mounting plate 103 moves up and down, the follow-up telescopic structure 5 drives the telescopic water pipe 2 112 to extend or retract the swinging water pipe 111, so that the total height of the swinging water pipe 111 and the telescopic water pipe 2 112 is adaptively adjusted according to the height of the platform plate 105, so as to facilitate the spraying and maintenance of the side wall of the subway station. The L-shaped support plate 109 is pulled out, and the L-shaped support plate 109 drives the telescopic water pipe 108 to move horizontally, so as to adjust the telescopic water pipe 108. The total length of the fixed water pipe 107 can be adjusted, so that the spray width of the subway station multifunctional maintenance trolley is adapted to the width of the top plate or the middle plate of the subway station. Through the above operation, the spray width and height of the subway station multifunctional maintenance trolley can be adjusted. Compared with the existing on-site assembled maintenance trolley, the present invention is simple to operate and easy to use. When the subway station maintenance requires wider spray maintenance, the rotating structure 3 drives the U-shaped rotating block 110 to rotate until the U-shaped rotating block 110 rotates to a horizontal state. At this time, the U-shaped rotating block 110 drives the swinging water pipe 111 and the telescopic water pipe 112 to rotate to a horizontal state, thereby further adjusting the width of the subway station concrete maintenance, and the length and width of the maintenance spraying are adjusted. After the degree and height adjustment is completed, the booster pump pumps the water in the water tank 106 into the fixed water pipe 107 and the telescopic water pipe 1 108, the water in the telescopic water pipe 1 108 enters the swinging water pipe 111 and the telescopic water pipe 2 112 through the check valve, and finally the water is sprayed out from the spraying ports of the fixed water pipe 107, the telescopic water pipe 1 108, the swinging water pipe 111 and the telescopic water pipe 2 112, thereby realizing the concrete maintenance of the subway station. After the telescopic water pipe 108 is adjusted on the fixed water pipe 107, some spraying ports on the fixed water pipe 107 and the telescopic water pipe 1 108 are in an overlapping state, and after the telescopic water pipe 2 112 is adjusted on the swinging water pipe 111, some spraying ports on the swinging water pipe 111 and the telescopic water pipe 2 112 are in an overlapping state.

[0034] like Figure 1-Figure 4As shown, as a preferred embodiment of the present invention, the height adjustment structure 2 includes a mobile platform 101, and four guide columns 102 fixed on the upper end of the mobile platform 101, the four guide columns 102 are slidably connected with a mounting plate 103, and the water tank 106 is fixed on the mobile platform 101; a driving component is provided on the mobile platform 101, and under the guidance of the four guide columns 102, the driving component drives the mounting plate 103 to move up and down; the driving component includes a guide slide 201 provided on the upper end of the mobile platform 101, and the guide A sliding block 202 is slidably connected in the slide groove 201; a connecting rod 203 is rotatably connected to the upper end of the sliding block 202, and a connecting rod 204 is rotatably connected to the upper end of the mobile platform 101, and the connecting rod 204 is rotatably connected to the middle part of the connecting rod 203; a screw 205 is rotatably connected in the guide slide groove 201, and the screw 205 penetrates and is threadedly connected to the sliding block 202, and a motor 206 is fixed on the side wall of the mobile platform 101, and the rotating end of the motor 206 is fixedly connected to the screw 205.

[0035] In the embodiment of the present invention, a walking wheel and a walking drive device are arranged under the mobile platform 101 to facilitate the movement of the multifunctional maintenance trolley of the subway station. The motor 206 drives the screw rod 1 205 to rotate. Under the guiding action of the guide slide groove 1 201, the rotating screw rod 1 205 drives the sliding block 1 202 to move through a threaded transmission. The sliding block 1 202 drives the connecting rod 1 203 to move. With the cooperation of the connecting rod 204, the moving connecting rod 1 203 rotates, and the connecting rod 1 203 drives the connecting rod 204 to rotate in the opposite direction, thereby making the connecting rod 1 203 and the connecting rod 2 2 04 gradually tends to be vertical, so that the height of the connecting rod 1 203 and the connecting rod 2 204 increases. Under the guiding action of the guide column 102, the connecting rod 1 203 and the connecting rod 2 204 push the mounting plate 103 to move upward, thereby adjusting the height of the mounting plate 103. The mounting plate 103 adjusts the height of the platform plate 105 through the support column 104. The platform plate 105 adjusts the height of the fixed water pipe 107, the telescopic water pipe 1 108, the swing water pipe 111 and the telescopic water pipe 2 112, thereby enabling the multifunctional maintenance trolley of the subway station to maintain concrete at different heights.

[0036] like Figure 1 , Figure 5 , Fig. 9 and Fig.10 As shown, as a preferred embodiment of the present invention, the platform plate 105 is provided with an inlet and outlet 116, a climbing frame 115 is fixed at the lower end of the platform plate 105 at the inlet and outlet 116, a fixing bolt 114 is threadedly connected to the guide sleeve 113, and the end of the fixing bolt 114 is against the L-shaped support plate 109.

[0037] In the embodiment of the present invention, the provision of the entrance and exit 116 and the climbing frame 115 allows people to go onto the platform plate 105. At this time, the multifunctional maintenance trolley of the subway station can be used as a liftable operating platform; the guide sleeve 113 guides the movement of the L-shaped support plate 109. After the position adjustment of the L-shaped support plate 109 is completed, the fixing bolt 114 is tightened, and the end of the fixing bolt 114 is against the L-shaped support plate 109, thereby fixing the L-shaped support plate 109.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, as a preferred embodiment of the present invention, the rotating structure 3 includes a second guide groove 301 arranged on the side wall of the L-shaped support plate 109, and a second sliding block 302 slidably connected inside the L-shaped support plate 109; a second screw rod 304 is rotatably connected to the L-shaped support plate 109, and the second screw rod 304 passes through and is threadedly connected to the second sliding block 302; a third connecting rod 303 is rotatably connected to the second sliding block 302, and the end of the third connecting rod 303 is rotatably connected to the U-shaped rotating block 110.

[0039] In the embodiment of the present invention, when it is necessary to adjust the spraying angle of the swinging water pipe 111 and the telescopic water pipe 112, the screw 2 304 is rotated. Under the guiding action of the guide slot 2 301, the rotating screw 2 304 drives the sliding block 2 302 to move up and down. When the sliding block 2 302 moves upward, the upward moving sliding block 2 302 pushes the U-shaped rotating block 110 to rotate upward through the connecting rod 3 303, and the U-shaped rotating block 110 drives the swinging water pipe 111 and the telescopic water pipe 112 to rotate upward. When the sliding block 2 302 moves downward, the downward moving sliding block 2 302 pushes the U-shaped rotating block 110 to rotate downward through the connecting rod 3 303, and the U-shaped rotating block 110 drives the swinging water pipe 111 and the telescopic water pipe 112 to rotate downward.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, as a preferred embodiment of the present invention, a limiting component 4 is provided on the L-shaped support plate 109; the limiting component 4 includes a U-shaped limiting block 401 horizontally slidably connected to the L-shaped support plate 109, and the U-shaped limiting block 401 is provided with a U-shaped groove 403 matching the outer contour of the U-shaped rotating block 110; a compression spring 402 is fixedly connected to the U-shaped limiting block 401, and the end of the compression spring 402 is fixed to the L-shaped support plate 109; a pushing plate 404 is horizontally slidably connected to the L-shaped support plate 109, and a reversing wheel 405 is rotatably connected to the side wall of the L-shaped support plate 109, and a connecting rope 406 is fixed to the pushing plate 404, and the connecting rope 406 passes around the reversing wheel 405 and is fixed to the U-shaped limiting block 401.

[0041] In the embodiment of the present invention, when the U-shaped rotating block 110, the swinging water pipe 111 and the telescopic water pipe 112 are in a vertical state, the compression spring 402 pushes the U-shaped limit block 401, thereby making the U-shaped limit block 401 abut against the side wall of the U-shaped rotating block 110. When the U-shaped rotating block 110, the swinging water pipe 111 and the telescopic water pipe 112 are rotated to a horizontal state, under the elastic force of the compression spring 402, the U-shaped limit block 401 moves toward the U-shaped rotating block 110. 0 moves, so that the U-shaped rotating block 110 is stuck in the U-shaped groove 403 on the U-shaped limiting block 401, so that the U-shaped limiting block 401 supports and fixes the horizontal U-shaped rotating block 110, thereby limiting the U-shaped rotating block 110, the swinging water pipe 111 and the telescopic water pipe 112 from rotating downward, thereby reducing the force on the screw 2 304, and preventing the U-shaped rotating block 110, the swinging water pipe 111 and the telescopic water pipe 112 from rotating downward due to damage of the connecting rod 303 or the screw 2 304. The water pipe 111 and the telescopic water pipe 112 are accidentally rotated downward, thereby improving the safety of the spray maintenance of the swinging water pipe 111 and the telescopic water pipe 112; when it is necessary to rotate the U-shaped rotating block 110, the swinging water pipe 111 and the telescopic water pipe 112 downward, the telescopic water pipe 108 is retracted into the fixed water pipe 107, and the L-shaped supporting plate 109 drives the pushing plate 404 to move toward the platform plate 105 until the pushing plate 404 contacts the platform plate 105, and the platform plate 105 overcomes the elastic force of the compression spring 402 and pushes the pushing plate 404 to move relative to the L-shaped supporting plate 109, and the pushing plate 404 pulls one end of the connecting rope 406, and the other end of the connecting rope 406 pulls the U-shaped limit block 401 away from the U-shaped rotating block 110 under the action of the reversing wheel 405, so that the U-shaped rotating block 110 is disengaged from the U-shaped groove 403 on the U-shaped limit block 401, and the rotation restriction of the U-shaped rotating block 110 is released.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Fig. 9 and Fig.10As shown, as a preferred embodiment of the present invention, the follow-up telescopic structure 5 includes a bevel gear 2 504 and a rotating rod 505 rotatably connected to the side wall of the L-shaped support plate 109; the rotating rod 505 is horizontally arranged, and the rotating rod 505 is fixed with a bevel gear 2 504, and the bevel gear 2 504 is meshed with a bevel gear 3 506; a fixed threaded sleeve 501 is fixed to the telescopic water pipe 2 112, and a screw rod 3 502 is rotatably connected to the swing water pipe 111, and the screw rod 3 502 is threadedly connected to the fixed threaded sleeve 501; a bevel gear 1 503 is fixed to the screw rod 3 502, and the bevel gear 1 503 is meshed with the bevel gear 2 504; a transmission assembly 6 is arranged on the mounting plate 103, When the mounting plate 103 moves up and down, the transmission assembly 6 drives the rotating rod 505 to rotate forward and backward; the transmission assembly 6 includes a rack 605 embedded and fixed on the side wall of the guide column 102, and a transmission shaft 603 rotatably connected to the upper end of the mounting plate 103; a gear 604 is fixed on the transmission shaft 603, and the gear 604 is meshed with the rack 605; a rotating sleeve 606 is rotatably connected to the lower end of the platform plate 105, and the rotating rod 505 passes through and is slidably connected to the rotating sleeve 606, and the cross-section of the matching section of the rotating rod 505 and the rotating sleeve 606 is a regular octagon; synchronous pulleys 601 are fixed on the rotating sleeve 606 and the transmission shaft 603, and the two synchronous pulleys 601 are connected through a synchronous belt 602.

[0043] In the embodiment of the present invention, when the mounting plate 103 moves up and down, the gear 604 can be driven to move relative to the guide column 102 and the rack 605. The rack 605 pushes the gear 604 to rotate, and the gear 604 drives the transmission shaft 603 to rotate. The transmission shaft 603 drives the rotating sleeve 606 to rotate through the synchronous pulley 601 and the synchronous belt 602. The rotating sleeve 606 drives the rotating rod 505 to rotate. The rotating rod 505 drives the bevel gear three 506 to move, and the bevel gear three 506 drives the bevel gear Wheel 2 504 rotates, bevel gear 2 504 drives bevel gear 1 503 to rotate, bevel gear 1 503 drives screw 3 502 to rotate, screw 3 502 drives fixed threaded sleeve 501 to move through thread transmission, fixed threaded sleeve 501 drives telescopic water pipe 2 112 to move, and then telescopic water pipe 2 112 is telescoped on the swinging water pipe 111; the moving L-shaped support plate 109 drives the rotating rod 505 to move, and then the rotating rod 505 slides on the rotating sleeve 606.

[0044] The above embodiment of the present invention provides a multifunctional maintenance trolley for a subway station. When in use, the multifunctional maintenance trolley for the subway station is moved to a position in the subway station where concrete maintenance is required. When the side wall of the subway station needs to be maintained, the check valve between the swinging water pipe 111 and the telescopic water pipe 108 is opened to connect the swinging water pipe 111 with the telescopic water pipe 108. When maintaining one side wall, the check valve between the swinging water pipe 111 and the telescopic water pipe 108 on a swing arm spraying mechanism is opened. When maintaining the side walls on both sides, the check valves between the swinging water pipe 111 and the telescopic water pipe 108 on the two swing arm spraying mechanisms are both opened. The selection is based on demand. The motor 206 drives the screw 205 to rotate. Under the guiding action of the guide slide groove 201, the rotating screw 205 drives the sliding block 202 through thread transmission. The sliding block 102 drives the connecting rod 103 to move, and with the cooperation of the connecting rod 204, the moving connecting rod 103 rotates, and the connecting rod 103 drives the connecting rod 204 to rotate in the opposite direction, so that the connecting rod 103 and the connecting rod 204 gradually tend to be vertical, so that the height of the connecting rod 103 and the connecting rod 204 increases, and under the guidance of the guide column 102, the connecting rod 103 and the connecting rod 204 push the mounting plate 103 to move upward, so as to adjust the height of the mounting plate 103, and the mounting plate 103 adjusts the height of the platform plate 105 through the support column 104, and the platform plate 105 adjusts the height of the fixed water pipe 107, the telescopic water pipe 108, the swing water pipe 111 and the telescopic water pipe 2 112, so that the multifunctional maintenance trolley of the subway station can maintain concrete at different heights;When the mounting plate 103 moves up and down, the gear 604 can be driven to move relative to the guide column 102 and the rack 605. The rack 605 pushes the gear 604 to rotate. The gear 604 drives the transmission shaft 603 to rotate. The transmission shaft 603 drives the rotating sleeve 606 to rotate through the synchronous pulley 601 and the synchronous belt 602. The rotating sleeve 606 drives the rotating rod 505 to rotate. The rotating rod 505 drives the bevel gear three 506 to move. The bevel gear three 506 drives the bevel gear two 504 to rotate. The bevel gear two 504 drives the bevel gear one 503 to rotate. The bevel gear one 503 drives the screw three 502 to rotate. The screw three 502 drives the screw three 502 to rotate through the screw The fixed threaded sleeve 501 is driven to move by a thread transmission method, and the fixed threaded sleeve 501 drives the telescopic water pipe 112 to move, so that the telescopic water pipe 112 is telescoped on the swinging water pipe 111, so that the total height of the swinging water pipe 111 and the telescopic water pipe 112 is adaptively adjusted according to the height of the platform plate 105, so as to facilitate the spraying and maintenance of the side wall of the subway station, and the L-shaped support plate 109 is pulled out, and the L-shaped support plate 109 drives the telescopic water pipe 108 to move horizontally, so as to adjust the total length of the telescopic water pipe 108 and the fixed water pipe 107, so that the spray width of the multifunctional maintenance trolley of the subway station is consistent with the top plate of the subway station. Or the width of the middle plate, through the above operation, the spray width and height of the multifunctional maintenance trolley of the subway station can be adjusted. Compared with the existing on-site assembled maintenance trolley, the present invention is simple to operate and easy to use. When the subway station maintenance requires wider spray maintenance, the screw rod 2 304 is rotated, and under the guiding action of the guide slide groove 2 301, the rotating screw rod 2 304 drives the sliding block 2 302 to move up and down. When the sliding block 2 302 moves upward, the sliding block 2 302 moving upward pushes the U-shaped rotating block 110 to rotate upward through the connecting rod 303, and the U-shaped rotating block 110 drives the swinging water pipe 111 and the telescopic water pipe 2 1 12 rotates upward until the U-shaped rotating block 110 drives the swinging water pipe 111 and the telescopic water pipe 112 to rotate to a horizontal state, thereby further adjusting the width of the subway station concrete curing. After the adjustment of the length, width and height of the curing spraying is completed, the booster pump pumps the water in the water tank 106 into the fixed water pipe 107 and the telescopic water pipe 1 108, and the water in the telescopic water pipe 1 108 enters the swinging water pipe 111 and the telescopic water pipe 112 through the check valve. Finally, the water is sprayed out from the spraying ports of the fixed water pipe 107, the telescopic water pipe 1 108, the swinging water pipe 111 and the telescopic water pipe 112, thereby realizing the concrete curing of the subway station. ;

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional maintenance trolley for a subway station, comprising a mounting plate (103), and four support columns (104) fixed to the upper end of the mounting plate (103), wherein a platform plate (105) is fixed to the upper ends of the four support columns (104), characterized in that: Also includes: A height adjustment structure (2), wherein the height adjustment structure (2) is used to adjust the height of the mounting plate (103); and a water tank (106), wherein the platform plate (105) is provided with two swing arm spraying mechanisms connected to the water tank (106); The swing arm spraying mechanism comprises a fixed water pipe (107) fixed to the upper end of the platform plate (105), one end of the fixed water pipe (107) being connected to the water tank (106) via a hose and a booster pump, and the other end of the fixed water pipe (107) being slidably connected to a telescopic water pipe 1 (108), and a plurality of spraying ports are provided on both the telescopic water pipe 1 (108) and the fixed water pipe (107); A guide sleeve (113) is fixed on the mounting plate (103), an L-shaped support plate (109) is slidably connected inside the guide sleeve (113), and one end of the L-shaped support plate (109) is fixed on a telescopic water pipe (108); A U-shaped rotating block (110) is rotatably connected to the L-shaped supporting plate (109); a swinging water pipe (111) is fixed to the end of the U-shaped rotating block (110); the swinging water pipe (111) is connected to the end of the telescopic water pipe 1 (108) via a hose and a check valve; a telescopic water pipe 2 (112) is slidably connected to the inside of the swinging water pipe (111); and a plurality of spraying ports are provided on the telescopic water pipe 2 (112) and the swinging water pipe (111); The L-shaped support plate (109) is provided with a rotating structure (3) and a follow-up telescopic structure (5). When the mounting plate (103) moves up and down, the follow-up telescopic structure (5) drives the telescopic water pipe 2 (112) to extend or retract into the swinging water pipe (111), and the rotating structure (3) is used to drive the U-shaped rotating block (110) to rotate; The height adjustment structure (2) comprises a mobile platform (101), and four guide columns (102) fixed to the upper end of the mobile platform (101), a mounting plate (103) being slidably connected to the four guide columns (102), and the water tank (106) is fixed on the mobile platform (101); The mobile platform (101) is provided with a driving assembly, and under the guidance of the four guide pillars (102), the driving assembly drives the mounting plate (103) to move up and down; The driving assembly comprises a guide slide groove 1 (201) arranged at the upper end of the mobile platform (101), wherein a sliding block 1 (202) is slidably connected in the guide slide groove 1 (201); The upper end of the sliding block 1 (202) is rotatably connected to a connecting rod 1 (203), the upper end of the mobile platform (101) is rotatably connected to a connecting rod 2 (204), and the connecting rod 2 (204) is rotatably connected to the middle part of the connecting rod 1 (203); A screw rod (205) is rotatably connected in the guide slide groove (201), and the screw rod (205) penetrates and is threadedly connected to the sliding block (202). A motor (206) is fixed on the side wall of the mobile platform (101), and the rotating end of the motor (206) is fixedly connected to the screw rod (205); The rotating structure (3) comprises a second guide slot (301) provided on the side wall of the L-shaped support plate (109), and a second sliding block (302) slidably connected inside the L-shaped support plate (109); The L-shaped support plate (109) is rotatably connected to a second screw rod (304), and the second screw rod (304) penetrates and is threadedly connected to the second sliding block (302); The sliding block 2 (302) is rotatably connected to a connecting rod 3 (303), and the end of the connecting rod 3 (303) is rotatably connected to the U-shaped rotating block (110); The follow-up telescopic structure (5) comprises a second bevel gear (504) and a rotating rod (505) rotatably connected to the side wall of the L-shaped support plate (109); The rotating rod (505) is arranged horizontally, and a second bevel gear (504) is fixed on the rotating rod (505), and the second bevel gear (504) is meshed with a third bevel gear (506); A fixed threaded sleeve (501) is fixed on the telescopic water pipe No. 2 (112), a screw rod No. 3 (502) is rotatably connected to the swing water pipe (111), and the screw rod No. 3 (502) is threadedly connected to the fixed threaded sleeve (501); The screw rod 3 (502) is fixed with a bevel gear 1 (503), and the bevel gear 1 (503) is meshed with the bevel gear 2 (504); The mounting plate (103) is provided with a transmission assembly (6), and when the mounting plate (103) moves up and down, the transmission assembly (6) drives the rotating rod (505) to rotate forward and reverse.

2. The multifunctional maintenance trolley for subway stations according to claim 1 is characterized in that: An inlet and outlet (116) is provided on the platform plate (105); a climbing frame (115) is fixed to the lower end of the platform plate (105) at the inlet and outlet (116); a fixing bolt (114) is threadedly connected to the guide sleeve (113); and the end of the fixing bolt (114) abuts against the L-shaped support plate (109).

3. The multifunctional maintenance trolley for subway stations according to claim 1, characterized in that: A limit position assembly (4) is provided on the L-shaped support plate (109); The limiting assembly (4) comprises a U-shaped limiting block (401) horizontally slidably connected to the L-shaped support plate (109), wherein the U-shaped limiting block (401) is provided with a U-shaped groove (403) matching the outer contour of the U-shaped rotating block (110); A compression spring (402) is fixedly connected to the U-shaped limiting block (401), and the end of the compression spring (402) is fixed to the L-shaped supporting plate (109); A push plate (404) is horizontally slidably connected to the L-shaped support plate (109), a reversing wheel (405) is rotatably connected to the side wall of the L-shaped support plate (109), a connecting rope (406) is fixed to the push plate (404), and the connecting rope (406) passes around the reversing wheel (405) and is fixed to the U-shaped limit block (401).

4. The multifunctional maintenance trolley for subway stations according to claim 1, characterized in that: The transmission assembly (6) comprises a rack (605) embedded and fixed on the side wall of the guide column (102), and a transmission shaft (603) rotatably connected to the upper end of the mounting plate (103); A gear (604) is fixed on the transmission shaft (603), and the gear (604) is meshed with a rack (605); The lower end of the platform plate (105) is rotatably connected to a rotating sleeve (606), and the rotating rod (505) penetrates and is slidably connected to the rotating sleeve (606); A synchronous pulley (601) is fixed on both the rotating sleeve (606) and the transmission shaft (603), and the two synchronous pulleys (601) are connected by a synchronous belt (602).

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