Bridge pier maintenance device
Through the coordinated design of the diversion component, turntable, spraying component and installation component, combined with the elastic telescopic rod and the contact wheel, the compatibility problem of the spraying device between round piers and square piers is solved, the uniformity of spraying is improved, and it is suitable for the maintenance of bridge piers of various pier types.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAOCHENG ZHENHUA ROAD & BRIDGE CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-17
AI Technical Summary
The existing bridge pier sprinkler system suffers from uneven spraying due to variations in the distance between the sprinkler head and the pier surface during the spraying process, especially with poor compatibility between round and square piers.
The system employs a coordinated design of diversion components, turntable, spraying components, and installation components, combined with elastic telescopic rods and contact wheels, to achieve automatic adaptation of the spraying device to round and square piers. The turntable is rotated by a drive motor to ensure uniform spraying.
It achieves full compatibility with both round and square piers, significantly improves the uniformity of spraying, and the spraying distance is not affected by the curvature or sharp edges of the pier surface, thus improving the quality of maintenance.
Smart Images

Figure CN224133572U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge construction technology, specifically a bridge pier maintenance device. Background Technology
[0002] After the large-volume concrete of the bridge piers is poured and demolded, it is easily affected by temperature changes in the open-air environment. In hot weather, the concrete evaporates moisture quickly, requiring timely curing to prevent shrinkage cracks. Spraying can continuously retain moisture and reduce water loss.
[0003] Existing technology includes a patent with application number CN202420705686.3, which provides a spray maintenance device for bridge piers. This device includes a water tank and a reinforcement mechanism. A water pump is installed on the left side of the water tank and connected to one end of a water supply pipe. A rotating plate is fixed to the lower end of a transfer pipe, and a connecting base plate is fixed to the lower end of a rotary motor. A third water supply pipe is connected below a second water supply pipe, and the reinforcement mechanism is located outside the first water supply pipe. The water pump delivers water from the tank to the first, transfer, second, and third water supply pipes, ultimately spraying it onto the bridge pier body from the spray nozzles. The rotary motor drives the rotating plate, transfer pipe, second and third water supply pipes, and spray nozzles to rotate, causing the spray nozzles to spray around the bridge pier body.
[0004] However, the above-mentioned patents still have the following shortcomings in use:
[0005] The length of the second water pipeline is fixed. When spraying and curing the pier, the distance between the spray head and the pier surface changes during the rotation process, which affects the uniformity of spraying. Utility Model Content
[0006] The purpose of this invention is to provide a bridge pier maintenance device to solve the problems mentioned in the background art.
[0007] The objective of this utility model can be achieved through the following technical solutions:
[0008] A bridge pier maintenance device includes a chassis fixedly installed at the center of the top surface of a square pier; a drive motor is fixedly installed at the center of the top surface of the chassis, and a thrust bearing fixedly installed on the top surface of the chassis is provided around the drive motor. A turntable coaxial with the chassis is fixedly installed at the top of the thrust bearing, and the output shaft of the drive motor is fixedly connected to the center of the bottom surface of the turntable.
[0009] A diversion component is fixedly installed on the top surface of the turntable, and the diversion component is connected to the ground water supply device through a water supply pipe.
[0010] The bottom surface of the turntable is fixedly connected to four sets of circumferentially arrayed mounting components at the edge position. A spray component is fixedly installed at the front end of the mounting components, and the water inlet end of the spray component is connected to the diversion component.
[0011] Furthermore, the diversion assembly includes a diversion barrel fixedly installed on the top surface of the turntable, and four circumferentially arrayed pipe joints are fixedly installed on the periphery of the diversion barrel near the bottom.
[0012] The top surface of the diversion tank is fixedly equipped with a water inlet, and a rotating pipe connector is rotatably installed at the top of the water inlet. The end of the rotating pipe connector away from the water inlet is rotatably connected to the end of the water supply pipe away from the water supply device. The water supply pipe is rotatably connected to the diversion tank through the rotating pipe connector and the water inlet.
[0013] Furthermore, the mounting assembly includes a connecting block and a mounting plate, and the connecting blocks in the four sets of mounting assemblies are respectively aligned with the four pipe fittings;
[0014] A vertically arranged elastic telescopic rod is fixedly connected to the outer side of the pipe joint near the bottom end, and the elastic telescopic rod is in a stretched state.
[0015] A hinge seat is fixedly installed at one end of the mounting plate, and the end of the elastic telescopic rod away from the connecting block is hinged to the mounting plate through the hinge seat;
[0016] An abutment component is fixedly installed on the bottom surface of the mounting plate near the hinge seat.
[0017] Furthermore, the abutment assembly includes two vertically fixed mounting shafts on the bottom surface of the mounting plate. Abutment wheels are rotatably mounted on the bottom end of the mounting shafts. Under the elastic force of the elastic telescopic rod, the outer periphery of the abutment wheel makes compression contact with the side of the square block.
[0018] Furthermore, a mounting post is fixedly installed on the bottom surface of the mounting plate at one end near the hinge seat, and the bottom end of the mounting post is embedded with a ball bearing that rolls in contact with the top surface of the square block.
[0019] Furthermore, the spray assembly includes a spray pipe, the bottom end of which is a closed structure and the top end of which is an open structure. A flexible conduit is fixedly connected to the top end of the spray pipe after it vertically penetrates the mounting plate at the end away from the hinge seat. The end of the flexible conduit away from the spray pipe is fixedly connected to a pipe joint at a corresponding position.
[0020] The nozzle is surrounded by a plurality of vertically arrayed nozzles.
[0021] The beneficial effects of this utility model are:
[0022] 1. This utility model solves the problem that existing spraying devices are only suitable for a single type of pier or have fluctuating spraying distance by coordinating the design of the diversion component, turntable, spraying component and installation component. It achieves full compatibility with round piers and square piers, and significantly improves the uniformity of spraying.
[0023] 2. This utility model, through the combination design of elastic telescopic rod and contact wheel, enables the device to automatically adapt to the geometry of round and square piers, and the spraying distance is not affected by the curvature or sharp corners of the pier surface, and remains consistent, thus improving the uniformity of spraying. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0026] Figure 2 yes Figure 1 Enlarged view of section A;
[0027] Figure 3 yes Figure 1 A three-dimensional diagram from another angle;
[0028] Figure 4 yes Figure 3 Enlarged view of section B;
[0029] Figure 5 yes Figure 4 Enlarged view of section C;
[0030] The accompanying figure is labeled as follows:
[0031] 1-Square pier, 2-Chassis, 3-Spray pipe, 4-Spray head, 5-Elastic telescopic rod, 6-Mounting plate, 7-Flexible conduit, 8-Water supply pipe, 9-Thrust bearing, 10-Turntable, 11-Diverter, 12-Pipe joint, 13-Inlet, 14-Rotating pipe connector, 15-Connecting block, 16-Hinge seat, 17-Abutting wheel, 18-Mounting column, 19-Ball bearing, 20-Mounting shaft. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Example 1:
[0034] Please see Figures 1-5 In this embodiment of the utility model, a bridge pier maintenance device includes a chassis 2 fixedly installed at the center of the top surface of a square pier 1; a drive motor is fixedly installed at the center of the top surface of the chassis 2, and a thrust bearing 9 fixedly installed on the top surface of the chassis 2 is provided around the drive motor. A turntable 10 coaxial with the chassis 2 is fixedly installed at the top of the thrust bearing 9, and the output shaft of the drive motor is fixedly connected to the center of the bottom surface of the turntable 10.
[0035] A diversion component is fixedly installed on the top surface of the turntable 10, and the diversion component is connected to the ground water supply device through the water supply pipe 8.
[0036] Four sets of circumferentially arrayed mounting components are fixedly connected to the bottom surface of the turntable 10 at the edge position. Spraying components are fixedly installed at the front end of the mounting components, and the water inlet end of the spraying components is connected to the diversion components.
[0037] The diversion assembly includes a diversion barrel 11 fixedly installed on the top surface of the turntable 10, and four circumferentially arrayed pipe joints 12 are fixedly installed on the periphery of the diversion barrel 11 near the bottom.
[0038] A water inlet 13 is fixedly installed on the top surface of the diversion tank 11. A rotating pipe connector 14 is rotatably installed on the top of the water inlet 13. The end of the rotating pipe connector 14 away from the water inlet 13 is rotatably connected to the end of the water supply pipe 8 away from the water supply device. The water supply pipe 8 is rotatably connected to the diversion tank 11 through the rotating pipe connector 14 and the water inlet 13. The rotating pipe connector 14 allows the water supply pipe 8 to rotate freely when the turntable 10 rotates, avoiding pipe tangling or twisting, ensuring a continuous water supply, and is suitable for long-term maintenance operations.
[0039] The mounting components include connecting blocks 15 and mounting plates 6, with the connecting blocks 15 in the four mounting components respectively aligned with the four pipe fittings 12;
[0040] A vertically arranged elastic telescopic rod 5 is fixedly connected to the outer side of the pipe joint 12 near the bottom end, and the elastic telescopic rod 5 is in a stretched state.
[0041] A hinge seat 16 is fixedly installed at one end of the mounting plate 6, and the end of the elastic telescopic rod 5 away from the connecting block 15 is hinged to the mounting plate 6 through the hinge seat 16.
[0042] An abutment component is fixedly installed on the bottom surface of the mounting plate 6 near the hinge seat 16.
[0043] The contact assembly includes two vertically fixed mounting shafts 20 on the bottom surface of the mounting plate 6. The bottom end of the mounting shaft 20 is rotatably mounted with a contact wheel 17. Under the elastic force of the elastic telescopic rod 5, the outer periphery of the contact wheel 17 is pressed into contact with the side of the square block 1.
[0044] The spray assembly includes a spray pipe 3. The bottom end of the spray pipe 3 is a closed structure, and the top end of the spray pipe 3 is an open structure. The top end of the spray pipe 3 vertically penetrates the mounting plate 6 at the end away from the hinge seat 16 and is fixedly connected to a flexible conduit 7. The end of the flexible conduit 7 away from the spray pipe 3 is fixedly connected to the pipe joint 12 at the corresponding position.
[0045] Multiple vertically arrayed nozzles 4 are installed around the nozzle 3.
[0046] In this utility model:
[0047] The maintenance device is fixed to the top of the pier 1 by the chassis 2. The drive motor drives the turntable 10 to rotate, which in turn drives the four sets of spray components installed on the edge of the turntable 10 to rotate synchronously. The diversion component continuously supplies water during rotation through the rotating pipe connector 14 and the fixed water supply pipe 8. The water flow is distributed through the diversion tank 11 to the flexible conduit 7 and spray pipe 3 of each spray component, and finally sprayed evenly by the vertically distributed nozzles 4.
[0048] During the spraying process, the elastic telescopic rod 5 is in a stretched state, and the mounting plate 6 is pulled to extend through the hinge seat 16, so that the contact wheel 17 is in close contact with the pier surface, and the mounting plate 6 is kept perpendicular to the pier surface, so that the distance between the spray pipe 3 and the pier surface remains consistent.
[0049] When the pier is round, the contact wheel 17 rolls with the curvature of the pier surface; if it is square, the extension and retraction of the elastic telescopic rod 5 automatically adjusts the length so that the contact wheel 17 is close to the pier surface. Through the elasticity compensation of the elastic telescopic rod 5 and the guiding effect of the contact wheel 17, the distance between the spray pipe 3 and the pier surface remains constant, ensuring uniform spray coverage.
[0050] Therefore, this utility model, through the combined design of the elastic telescopic rod 5 and the abutment wheel 17, enables the device to automatically adapt to the geometry of round and square piers, and the spraying distance is not affected by the curvature or sharp edges of the pier surface, and remains consistent, thus solving the problem of uneven spraying caused by the fixed pipe length in traditional devices.
[0051] The nozzle 3 is connected to the diversion component through the flexible conduit 7, and combined with the rotation drive, it realizes circumferential spraying, which significantly improves the quality of maintenance.
[0052] Therefore, this utility model solves the problem that existing spraying devices are only suitable for a single type of pier or have fluctuating spraying distance by coordinating the design of the diversion component, turntable, spraying component and installation component, achieving full compatibility with round piers and square piers, and significantly improving the uniformity of spraying.
[0053] Example 2:
[0054] Please see Figure 5 Based on embodiment 1, an installation post 18 is fixedly installed on the bottom surface of the mounting plate 6 at one end near the hinge seat 16, and a ball bearing 19 is embedded at the bottom end of the installation post 18 that rolls in contact with the top surface of the square block 1.
[0055] The ball bearings 19 at the bottom of the mounting plate 6 roll in contact with the top of the pier, supporting the mounting components, enhancing the stability of the device operation, and extending its service life.
[0056] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A bridge pier maintenance device, comprising a chassis (2) fixedly installed at the center position of the top surface of a square pier (1); characterized in that, A drive motor is fixedly installed at the center of the top surface of the chassis (2). A thrust bearing (9) is fixedly installed on the top surface of the chassis (2) and the top of the thrust bearing (9) is fixedly installed on the top of the chassis (2). A turntable (10) coaxial with the chassis (2) is fixedly installed on the top of the thrust bearing (9). The output shaft of the drive motor is fixedly connected to the center of the bottom surface of the turntable (10). A diversion component is fixedly installed on the top surface of the turntable (10), and the diversion component is connected to the ground water supply device through a water supply pipe (8). The bottom surface of the turntable (10) is fixedly connected with four sets of circumferentially arrayed mounting components at the edge position. A spray component is fixedly installed at the front end of the mounting component, and the water inlet end of the spray component is connected to the diversion component.
2. A bridge pier maintenance device according to claim 1, wherein The diversion assembly includes a diversion bucket (11) fixedly installed on the top surface of the turntable (10), and four circumferentially arrayed pipe joints (12) are fixedly installed on the periphery of the diversion bucket (11) near the bottom. The top surface of the diversion tank (11) is fixedly installed with a water inlet (13). A rotating pipe connector (14) is rotatably installed at the top of the water inlet (13). The end of the rotating pipe connector (14) away from the water inlet (13) is rotatably connected to the end of the water supply pipe (8) away from the water supply device. The water supply pipe (8) is rotatably connected to the diversion tank (11) through the rotating pipe connector (14) and the water inlet (13).
3. A bridge pier maintenance device according to claim 2, wherein The mounting assembly includes a connecting block (15) and a mounting plate (6), and the connecting block (15) in the four sets of mounting assemblies is aligned with the four pipe fittings (12) respectively; A vertically arranged elastic telescopic rod (5) is fixedly connected to the outer side of the pipe joint (12) near the bottom end, and the elastic telescopic rod (5) is in a stretched state. A hinge seat (16) is fixedly installed at one end of the mounting plate (6), and the end of the elastic telescopic rod (5) away from the connecting block (15) is hinged to the mounting plate (6) through the hinge seat (16); An abutment component is fixedly installed on the bottom surface of the mounting plate (6) near the hinge seat (16).
4. A bridge pier maintenance device according to claim 3, wherein The abutment assembly includes two vertically fixed mounting shafts (20) on the bottom surface of the mounting plate (6). Abutment wheels (17) are rotatably mounted on the bottom end of the mounting shafts (20). Under the elastic force of the elastic telescopic rod (5), the outer periphery of the abutment wheel (17) is pressed into contact with the side of the square block (1).
5. A bridge pier maintenance device according to claim 3, wherein On the bottom surface of the mounting plate (6), a mounting post (18) is fixedly installed at one end near the hinge seat (16), and the bottom end of the mounting post (18) is embedded with a ball bearing (19) that rolls in contact with the top surface of the block (1).
6. A bridge pier maintenance device according to claim 3, wherein The spray assembly includes a spray pipe (3), the bottom end of the spray pipe (3) is a closed structure, the top end of the spray pipe (3) is an open structure, and the top end of the spray pipe (3) is vertically penetrating the mounting plate (6) away from the hinge seat (16) and then fixedly connected to a flexible conduit (7), the end of the flexible conduit (7) away from the spray pipe (3) is fixedly connected to a pipe joint (12) at the corresponding position. A plurality of nozzles (4) are arranged in vertical array on the periphery of the lance (3).
Citation Information
Patent Citations
Spraying maintenance device for high pier of bridge
CN222313799U