Bridge deck spraying maintenance trolley capable of automatically steering

Abstract

The utility model discloses a bridge deck spraying maintenance trolley capable of steering automatically, which comprises a trolley plate, a water tank arranged at the top of the trolley plate, and a spraying assembly arranged in the water tank, the spraying assembly comprises a vertical pipe arranged in the water tank, and the spraying assembly is connected with the top of the vertical pipe, and the conveying pipe is longitudinally distributed along the top of the water tank. By arranging the horizontal spray heads, the spraying precision of the bridge floor is ensured, centralized maintenance of the bridge floor is achieved, by arranging the inclined spray heads, the two sides of the trolley can spray the wider bridge floor, and even coverage of the whole area of the bridge floor can be achieved; furthermore, through the arrangement of a position sensor, when the maintenance trolley detects an obstacle at the end part of the bridge floor, the maintenance trolley can automatically turn clockwise and straightly advance on the bridge floor again in a manner of staggering the coming track, and the cycle is repeated until the spraying of the whole bridge floor is completed, so that the maintenance of the concrete bridge floor is realized.

Description

Technical Field

[0001] The utility model specifically relates to a bridge deck spraying and health-care trolley which can automatically turn. Background Art

[0002] The quality of concrete bridge deck pavement is the guarantee for excellent operating conditions after opening to traffic. Due to its thin pavement thickness and large exposed area, cracks and other defects are prone to appear on the surface due to the influence of wind, temperature, etc. during construction. In order to ensure that there are no cracks on the concrete surface and the strength is not reduced, one of the main ways to enhance moisturizing and curing is to spray water with a curing vehicle.

[0003] However, when the current maintenance vehicle is driving on the bridge deck, the spraying range of the nozzle is small and the spraying accuracy is low, so it takes a lot of time to complete the maintenance process. In addition, the vehicle cannot turn automatically and requires manual control, so it has a low degree of intelligence and is not conducive to use.

[0004] Therefore, it is necessary to invent a bridge deck spraying health-care trolley that can automatically turn to solve the above problems. Utility Model Content

[0005] (I) Purpose of the utility model

[0006] In order to solve the technical problems existing in the background technology, the utility model proposes a bridge deck spraying and curing trolley which can automatically turn. Horizontal nozzles are arranged on both sides of the curing trolley to directly spray the bridge deck, thereby ensuring the spraying accuracy of the bridge deck and realizing centralized maintenance of the bridge deck. By arranging inclined nozzles, a wider bridge deck can be sprayed on both sides of the trolley, thereby realizing uniform coverage of the entire bridge deck. Furthermore, by providing a position sensor, when the curing trolley detects an obstacle at the end of the bridge deck, under the transmission of the Raspberry Pi, the steering motor, the curved rack and the bottom plate, the curing trolley can turn clockwise, and move straight forward again on the bridge deck in a staggered trajectory, and finally turn automatically again at the other end of the bridge deck until the spraying of the entire bridge deck is completed, thereby realizing the curing of the concrete bridge deck.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bridge deck spraying and health-care vehicle capable of automatic steering, comprising a vehicle board, a water tank arranged on the top of the vehicle board, and a spraying assembly arranged inside the water tank;

[0009] The spray assembly includes a vertical pipe installed inside the water tank, a delivery pipe connected to the top of the vertical pipe and longitudinally distributed along the top of the water tank, horizontal pipes installed at both ends of the delivery pipe and transversely distributed on the front and rear sides of the water tank, and a spray head arranged on the horizontal pipe;

[0010] A steering assembly is also installed at the bottom of the vehicle plate to achieve automatic steering of the vehicle plate so that the nozzle can effectively spray the bridge deck.

[0011] Preferably, a water pump is installed on the bottom wall of the water tank, and the output end of the water pump is connected to the bottom port of the vertical pipe.

[0012] Preferably, there are a plurality of nozzles on each of the transverse pipes, and the nozzles are evenly spaced in groups of two, and each group includes a horizontally arranged nozzle and an inclined arranged nozzle.

[0013] Preferably, two connecting blocks are installed at the bottom of one side of the vehicle plate, and a folding plate is connected to the bottom of the vehicle plate between the two connecting blocks;

[0014] The bottom of the left and right sides of the vehicle plate are provided with cross bars, and wheels are installed at both ends of the cross bars;

[0015] The cross bar on the left side passes through two connecting blocks, and a driving motor is installed on the cross bar, and the driving motor is arranged on the top of the folding plate.

[0016] Preferably, the steering assembly comprises a bottom plate arranged below the vehicle plate, a curved rack arranged on one side of the bottom plate, a gear engaged with the curved rack, and a steering motor installed at the bottom of the vehicle plate, wherein the output end of the steering motor is connected to the gear;

[0017] It also includes a positioning rod connected to the bottom of the vehicle plate, two discs arranged at the bottom of the positioning rod, and a curved hole opened on the bottom plate;

[0018] It also includes an arc-shaped plate installed on the other side of the top of the bottom plate, wherein the cross bar located on the right side is arranged through the two ends of the arc-shaped plate.

[0019] Preferably, a square block protrudes outward from the middle of the arc-shaped plate, a positioning pin is installed inside the square block, and the top of the positioning pin is connected to the bottom of the vehicle plate.

[0020] Preferably, the curved hole and the curved rack are set with equal curvature, the bottom end of the positioning rod passes through the curved hole and extends to one side of the bottom of the base plate, and the two discs are respectively arranged at the top and bottom of the base plate.

[0021] Preferably, a Raspberry Pi and a position sensor connected to the Raspberry Pi are also installed on the top of the side of the vehicle plate away from the curved rack, wherein the steering motor and the Raspberry Pi are configured to be electrically connected.

[0022] Compared with the prior art, the above technical solution of the utility model has the following beneficial effects:

[0023] 1. The utility model arranges horizontal nozzles on both sides of the maintenance trolley to spray directly on the bridge deck, thereby ensuring the spraying accuracy of the bridge deck and realizing centralized maintenance of the bridge deck. By arranging inclined nozzles, a wider bridge deck can be sprayed on both sides of the trolley. In the subsequent reciprocating travel of the maintenance trolley, the entire bridge deck can be evenly covered, thereby achieving the best spraying maintenance effect;

[0024] 2. The utility model is provided with a position sensor. When the health-care trolley is driving straight on the bridge deck, it will automatically detect whether there is an obstacle in front. When an obstacle at the end of the bridge deck is detected, the Raspberry Pi can send a control signal to the steering motor, and then the steering motor rotates forward. Under the swing of the curved rack and the bottom plate, the health-care trolley can turn clockwise, that is, the health-care trolley can turn automatically, move straight again on the bridge deck in a way of staggering the trajectory when it came, and turn automatically again at the other end of the bridge deck until the spraying of the entire bridge deck is completed, thereby realizing the health care of the concrete bridge deck. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 It is a three-dimensional diagram of the utility model;

[0028] Figure 3 This is a schematic diagram of the water pump structure of the utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the steering assembly of the utility model;

[0030] Figure 5 This is a bottom view of the steering assembly structure of the utility model;

[0031] Figure 6 This is a schematic diagram of the connection structure between the disc and the base plate of the utility model.

[0032] Description of reference numerals:

[0033] 1 car plate, 2 water tank, 31 vertical pipe, 32 delivery pipe, 33 horizontal pipe, 34 nozzle, 35 water pump, 4 connecting block, 5 folding plate, 6 cross bar, 7 wheel, 8 driving motor, 91 bottom plate, 92 curved rack, 93 gear, 94 steering motor, 95 positioning rod, 96 disc, 97 curved hole, 98 arc plate, 99 square block, 10 positioning pin, 11 Raspberry Pi, 12 position sensor. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0035] The utility model provides Figure 1-6 The bridge deck spraying and health-care vehicle shown in the figure can automatically turn includes a vehicle board 1, a water tank 2 arranged on the top of the vehicle board 1, and a spray assembly arranged inside the water tank 2; the spray assembly includes a vertical pipe 31 installed inside the water tank 2, a delivery pipe 32 connected to the top of the vertical pipe 31 and longitudinally distributed along the top of the water tank 2, a cross pipe 33 installed at both ends of the delivery pipe 32 and transversely distributed on the front and rear sides of the water tank 2, and a nozzle 34 arranged on the cross pipe 33; a steering assembly is also installed at the bottom of the vehicle board 1, which is used to realize automatic steering of the vehicle board 1 so that the nozzle 34 can effectively spray the bridge deck.

[0036] In one embodiment, a water pump 35 is installed on the bottom wall of the water tank 2, and the output end of the water pump 35 is connected to the bottom port of the vertical pipe 31, which is used to extract water from the water tank 2 so that it can be sprayed out through the nozzle 34 under the action of pressure and then sprayed onto the bridge deck. There are a number of nozzles 34 on each of the horizontal pipes 33, and they are evenly spaced in groups of two. Each group includes a horizontally set nozzle 34 and an inclined nozzle 34, so that when the bridge deck is sprayed, the spraying accuracy is guaranteed while covering a larger area of ​​the bridge deck.

[0037] In one embodiment, two connecting blocks 4 are installed at the bottom of one side of the vehicle plate 1, and a folding plate 5 is connected to the bottom of the vehicle plate 1 between the two connecting blocks 4, which is used to support the drive motor 8 and ensure the stability of the drive motor 8; cross bars 6 are provided at the bottom of the left and right sides of the vehicle plate 1, and wheels 7 are installed at both ends of the cross bars 6; wherein the cross bar 6 located on the left side passes through the two connecting blocks 4, so that the wheels 7 at both ends of the cross bar 6 are assembled with the vehicle plate 1, and a drive motor 8 is also installed on the cross bar 6, and the drive motor 8 is arranged on the top of the folding plate 5.

[0038] In one embodiment, the steering assembly includes a bottom plate 91 disposed under the vehicle plate 1, a curved rack 92 disposed on one side of the bottom plate 91, a gear 93 kneaded with the curved rack 92, and a steering motor 94 installed at the bottom of the vehicle plate 1, wherein the output end of the steering motor 94 is connected to the gear 93; it also includes a positioning rod 95 connected to the bottom of the vehicle plate 1, two discs 96 disposed at the bottom of the positioning rod 95, and a curved hole 97 opened on the bottom plate 91; it also includes a gear 97 installed at the top of the bottom plate 91 The arc-shaped plate 98 on the other side, wherein the cross bar 6 on the right side is arranged through the two ends of the arc-shaped plate 98, and the top of the side of the vehicle plate 1 away from the curved rack 92 is also installed with a Raspberry Pi 11 and a position sensor 12 connected to the Raspberry Pi 11, wherein the steering motor 94 is arranged to be electrically connected to the Raspberry Pi 11, and when obstacles are placed at both ends of the bridge deck, the steering assembly can realize automatic steering of the vehicle plate 1 under the action of the position sensor 12 and the Raspberry Pi 11, so that the nozzle 34 can effectively spray the bridge deck;

[0039] A square block 99 protrudes outward from the middle of the arc plate 98, and a positioning pin 10 is installed inside the square block 99, wherein the positioning pin 10 is connected to the square block 99 through a bearing, so that the two right wheels 7, that is, the front side, are assembled with the vehicle plate 1, and at the same time, the right cross bar 6 can rotate synchronously with the rotation of the bottom plate 91 without being interfered by the vehicle plate 1, and the top of the positioning pin 10 is connected to the bottom of the vehicle plate 1; wherein the curved hole 97 and the curved rack 92 are set to have the same curvature, so that the bottom plate 91 can swing freely, and the bottom end of the positioning rod 95 passes through the curved hole 97 and extends to one side of the bottom of the bottom plate 91, and two discs 96 are respectively arranged at the top and bottom of the bottom plate 91, which are used to support the bottom plate 91, so that the bottom plate 91 can be stably set under the vehicle plate 1.

[0040] The specific implementation method is as follows: In the present utility model, Figure 1 As shown, a plurality of baffles 13 are also provided on the four sides of the top of the vehicle board 1, and the water tank 2 is provided between the baffles 13. Such a design enables the water tank 2 to be easily placed on the vehicle board 1, and the water tank 2 will not be offset when the vehicle board 1 moves, and an observation window 14 is installed on the front side wall of the water tank 2, so that the staff can see the liquid level in the water tank 2 and know whether the water source needs to be replenished at the first time. A sealing plug 15 is connected to the top of the water tank 2, and an external water inlet pipe is inserted into it when it is opened, so as to add water to the inside of the water tank 2, and support plates 16 are provided on both the front and rear sides of the top of the water tank 2, and the delivery pipe 32 is arranged through the support plate to improve the stability of the delivery pipe 32;

[0041] Specifically, the position sensor 12 is set to be a HC-SR04 ultrasonic sensor, which can provide non-contact distance detection of 2-400cm, with an accuracy of 3mm and an operating voltage of 5V, so it can be directly connected to the Raspberry Pi 11, and the Raspberry Pi is set to be a Raspberry Pi Model B, which has a rich GPIO interface and can be easily connected to the HC-SR04 ultrasonic sensor to realize signal transmission and reception, wherein the signal transmission and reception is a prior art and is not specifically described. For those skilled in the art, it is fully understandable, therefore, in order to avoid redundant description, it is only mentioned in a functionally limited manner;

[0042] When in use, the staff places obstacles at both ends of the bridge deck where water needs to be sprayed for detection by the position sensor 12, and then fills the water tank 2 with water, starts the driving motor 8, so that the left wheel 7, that is, the rear wheel, rotates as the active wheel, and the right wheel 7, that is, the front wheel, rotates passively as the driven wheel, so that the vehicle plate 1 moves forward in a straight line. At this time, the water pump 35 starts to work, and the water source in the water tank 2 is pumped into the cross pipe 33 through the vertical pipe 31 and the delivery pipe 32, and then sprayed out through the nozzle 34. Among them, the horizontally arranged nozzle 34 can directly aim at the bridge deck on the front and rear sides of the trolley for spraying, ensuring the accuracy of spraying and realizing centralized maintenance of the bridge deck, while the inclined nozzle 34 can make the water source spray farther, the spraying range becomes larger, and a wider bridge deck is covered. In the subsequent reciprocating driving of the health-care trolley, the entire area of ​​the bridge deck is evenly covered, thereby achieving the best spraying health-care effect;

[0043] like Figure 4 As shown, as the trolley continues to move forward and reaches the other end of the bridge deck, when the position sensor 12 detects an obstacle in front, it will transmit a signal to the Raspberry Pi 11, so that the Raspberry Pi 11 sends a control signal to the steering motor 94, so that the output end of the steering motor 94 rotates in the positive direction, thereby forcing the curved rack 92 to move backward, that is, swing in the clockwise direction, further driving the left side of the bottom plate 91 to deviate backward, and at this time the right side of the bottom plate 91 will deviate forward, thereby driving the right side cross bar 6 to deviate forward as a whole through the arc plate 98, further making the two front wheels rotate synchronously to the front side, that is, the front wheels deflect synchronously clockwise, and at this time, as the rear wheels are continuously driven, the trolley will turn clockwise;

[0044] When the position sensor 12 detects that there is no obstacle ahead, it will drive the steering motor 94 to rotate in the opposite direction in the same way, so that the curved rack 92 is reset, and then the bottom plate 91 is reset, and the two front wheels are further reset to keep them level with the rear wheels, so that the trolley can continue to move forward in a straight line after turning, and continue to turn after reaching the end of the bridge deck, and repeat the cycle until the entire bridge deck is sprayed, so as to achieve the curing of the concrete bridge deck;

[0045] In summary, the maintenance trolley ensures the spraying accuracy of the bridge deck by setting a horizontal nozzle 34 and realizes the centralized maintenance of the bridge deck. By setting an inclined nozzle 34, the two sides of the trolley can spray a wider bridge deck, and the spraying efficiency is high. It does not take too much time to complete the overall spraying of the bridge deck. In addition, by setting a position sensor 12, when the maintenance trolley detects an obstacle at the end of the bridge deck, it can automatically turn clockwise and move forward straight on the bridge deck again in a staggered trajectory. This cycle is repeated until the spraying of the entire bridge deck is completed, and the maintenance of the concrete bridge deck is realized. The whole process does not require human control and has a high degree of intelligence. The automatic steering function can cooperate with the horizontal and inclined nozzles 34 to achieve uniform coverage of the entire bridge deck area, indirectly reducing the spraying cycle, saving a lot of working time, and being convenient for use.

[0046] This embodiment specifically solves the problem in the prior art that when the current maintenance vehicle is traveling on the bridge deck, the spraying range of the nozzle 34 is small, the spraying accuracy is low, a lot of time is needed to complete the maintenance process, and the vehicle cannot turn automatically and needs manual control, the degree of intelligence is low, and it is not conducive to use.

[0047] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A bridge deck spraying and health-care vehicle capable of automatic steering, characterized in that: It comprises a vehicle panel (1), a water tank (2) arranged on the top of the vehicle panel (1), and a spray assembly arranged inside the water tank (2); The spray assembly comprises a vertical pipe (31) installed inside the water tank (2), a delivery pipe (32) connected to the top of the vertical pipe (31) and distributed longitudinally along the top of the water tank (2), a horizontal pipe (33) installed at both ends of the delivery pipe (32) and distributed transversely on the front and rear sides of the water tank (2), and a spray head (34) arranged on the horizontal pipe (33); A steering assembly is also installed at the bottom of the vehicle deck (1) for realizing automatic steering of the vehicle deck (1), so that the spray head (34) can effectively spray the bridge deck.

2. The bridge deck spraying and health-care vehicle capable of automatic steering according to claim 1, characterized in that: A water pump (35) is installed on the bottom wall of the water tank (2), and the output end of the water pump (35) is connected to the bottom end of the vertical pipe (31).

3. The bridge deck spraying and health-care vehicle capable of automatic steering according to claim 2, characterized in that: A plurality of nozzles (34) are provided on each of the transverse tubes (33), and are evenly spaced and arranged in groups of two, with each group comprising a horizontally arranged nozzle (34) and a tiltedly arranged nozzle (34).

4. The bridge deck spraying and health-care vehicle capable of automatic steering according to claim 1 is characterized in that: Two connecting blocks (4) are installed at the bottom of one side of the vehicle plate (1), and a folding plate (5) is also connected to the bottom of the vehicle plate (1) between the two connecting blocks (4); The bottom of the left and right sides of the vehicle plate (1) are both provided with cross bars (6), and wheels (7) are installed at both ends of the cross bars (6); The cross bar (6) on the left side is arranged to penetrate the two connecting blocks (4), and a driving motor (8) is also installed on the cross bar (6), and the driving motor (8) is arranged on the top of the folding plate (5).

5. The bridge deck spraying and health-care vehicle capable of automatic steering according to claim 4 is characterized in that: The steering assembly comprises a bottom plate (91) arranged below the vehicle plate (1), a curved rack (92) arranged on one side of the bottom plate (91), a gear (93) engaged with the curved rack (92), and a steering motor (94) installed at the bottom of the vehicle plate (1), wherein an output end of the steering motor (94) is connected to the gear (93); It also includes a positioning rod (95) connected to the bottom of the vehicle plate (1), two discs (96) arranged at the bottom of the positioning rod (95), and a curved hole (97) opened on the bottom plate (91); It also includes an arc-shaped plate (98) installed on the other side of the top of the bottom plate (91), wherein the cross bar (6) located on the right side is arranged through the two ends of the arc-shaped plate (98).

6. The bridge deck spraying and health-care vehicle capable of automatic steering according to claim 5, characterized in that: A square block (99) protrudes outward from the middle of the arc-shaped plate (98), a positioning pin (10) is installed inside the square block (99), and the top of the positioning pin (10) is connected to the bottom of the vehicle plate (1).

7. The bridge deck spraying and health-care vehicle capable of automatic steering according to claim 5, characterized in that: in, The curved hole (97) and the curved rack (92) are arranged with the same curvature, the bottom end of the positioning rod (95) passes through the curved hole (97) and extends to one side of the bottom of the bottom plate (91), and the two discs (96) are respectively arranged on the top and bottom of the bottom plate (91).

8. The bridge deck spraying and health-care vehicle capable of automatic steering according to claim 5, characterized in that: A Raspberry Pi (11) and a position sensor (12) connected to the Raspberry Pi (11) are also installed on the top of a side of the vehicle plate (1) away from the curved rack (92), wherein the steering motor (94) is electrically connected to the Raspberry Pi (11).

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