A precast box girder curing device

Abstract

This invention discloses a precast box girder maintenance device, relating to the technical field of bridge maintenance equipment. It includes a main unit comprising a loading unit, an anti-collision unit, and a maintenance watering unit. The loading unit includes a load-bearing moving plate, a placement frame, and a push handle. The anti-collision unit includes anti-collision components located on both sides of the placement frame. This invention utilizes the combined use of a buffer sleeve, a built-in sliding cylinder, rubber rollers, and a contraction spring in the anti-collision components to passively correct any unexpected deviations in the moving path of the load-bearing moving plate, preventing impacts with the outer wall of the precast box girder and thus avoiding damage to the equipment and the precast box girder. Furthermore, the combined use of an adjusting sleeve, a built-in adjusting cylinder, and a spring rod allows the required anti-collision range of the load-bearing moving plate to be adjusted according to needs, thereby adapting to different spacings between precast box girders and improving the device's applicability.

Description

Technical Field

[0001] This invention relates to the field of bridge maintenance equipment technology, specifically to a precast box girder maintenance device. Background Technology

[0002] As an important component of viaducts, precast box girders are typically manufactured in advance at beam fabrication plants. These precast box girders are placed side-by-side at intervals in the plant, facilitating both transportation and maintenance. During maintenance, the box girders need to be sprayed with water. The upper surface of the box girder, being horizontal, is easy to retain water, making maintenance relatively convenient. However, the left and right sides are sloping and have a large curvature, making it difficult for water to remain. Therefore, continuous water spraying is necessary to ensure the water remains on the box girder for a sufficient time to improve maintenance quality. However, prolonged water spraying is a significant waste of water resources, and the large amount of water sprayed also deteriorates the ground environment, hindering the movement of maintenance equipment.

[0003] The prior art proposes a Chinese patent with publication number CN110228131B to solve the above-mentioned technical problems. The technical solution disclosed in this patent document is as follows: a precast box girder maintenance device, which effectively solves the problem of water waste caused by the inability to recycle water resources during the existing box girder maintenance process; the technical solution includes a water tank, with a spray pipe connected to the left and right sides of the water tank respectively, and a planetary gear system structure at the bottom of the water tank, wherein a motor is connected to the sun gear, a planetary carrier is connected to the planet gear, and a horizontal shaft is provided on the left and right sides of the planetary carrier. The rotation of the planetary carrier can drive the horizontal shafts on both sides to rotate. A piston cylinder is provided above each horizontal shaft, and two pneumatic telescopic rods are provided on the outer side of each horizontal plate. The rotation of the horizontal shaft can drive the piston to move up and down in the piston cylinder. A water collection box is fixed at the protruding end of each pneumatic telescopic rod. The water collection box can be connected to the water tank after it extends outward. A set of drive wheels is provided on the front and rear sides of the water tank. The rotation of the external gear ring can drive the shaft of the rear drive wheel to rotate.

[0004] The above technical solution will have the following problems in actual use:

[0005] While this device effectively solves the problem of water waste caused by the inability to recycle water during the existing box girder maintenance process, it lacks a limiting device when the equipment deviates from its path during movement. This can easily cause it to bump into the sides of the precast box girder, resulting in damage to both the precast box girder and the equipment. Furthermore, the device can only spray water on the sides of the precast box girder for maintenance and cannot maintain its top, thus its applicability needs to be improved. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A precast box girder maintenance device includes a main unit, which includes a loading unit, an anti-collision unit, and a maintenance watering unit.

[0008] The loading unit includes a support moving plate, a placement frame, and a push handle; the anti-collision unit includes anti-collision components located on both sides of the placement frame; and the maintenance watering unit includes a water delivery tank, a lifting electric push rod, a T-shaped water spray frame, a guide telescopic rod, and a side spray frame.

[0009] The anti-collision assembly includes an adjusting sleeve, a buffer sleeve, a plug-in positioning frame, a built-in adjusting cylinder, a spring plug, a built-in slide cylinder, a rubber roller, a contraction spring, and a guide slider. The inner wall of the buffer sleeve has a built-in sliding groove, and a receiving base is provided on one side of the bearing moving plate. The upper surface of the adjusting sleeve has a mounting hole for inserting the spring plug.

[0010] The above technical solution utilizes the combined use of buffer sleeves, built-in slides, rubber rollers, and retraction springs in the anti-collision components to passively correct the moving plate when it accidentally deviates from its movement path, thus avoiding impact with the outer wall of the precast box girder and preventing damage to the equipment and the precast box girder.

[0011] A further improvement of the technical solution of the present invention is that: the inner wall of the top end of the built-in slide cylinder is rotatably connected to both ends of the rubber roller; the inner wall of the built-in slide groove is slidably connected to the outer wall of the guide slider; the top of the inner wall of the built-in slide cylinder is fixedly connected to the top end of the contraction spring; and the bottom end of the contraction spring is fixedly connected to the bottom end of the inner wall of the buffer sleeve.

[0012] A further improvement of the technical solution of the present invention is that: the bottom end of the buffer sleeve is fixedly connected to one end of the built-in adjusting cylinder, the outer wall of the other end of the built-in adjusting cylinder is slidably connected to the inner wall of the adjusting sleeve, and a water collection tank is fixedly connected to the outer wall of the receiving base.

[0013] Using the above technical solution, the curing water remaining on the outer wall of the precast box girder falls into the water collection tank. After standing in the water collection tank for a period of time, it can be extracted and reused, saving water resources and avoiding the problem of curing water falling on the ground, causing mud and affecting equipment movement.

[0014] A further improvement of the technical solution of the present invention is that: the bottom end of the spring insert is inserted into the inner wall of the mounting hole, the bottom end of the anti-collision component is inserted into the inner wall of the insertion positioning frame, and the anti-collision component and the insertion positioning frame are fixedly connected to one side of the placement frame by screws.

[0015] By adopting the above technical solution, the combination of adjusting sleeve, built-in adjusting cylinder and spring rod allows the required anti-collision range of the moving plate to be adjusted and changed according to the needs, thereby making it suitable for different spacings between precast box girders and improving the applicability of the device.

[0016] A further improvement of the technical solution of the present invention is that: the bottom surface of the placement rack is fixedly connected to the upper surface of the supporting movable plate, and the bottom surface of the supporting movable plate is fixedly connected with casters.

[0017] A further improvement of the technical solution of the present invention is that: the inner wall of the placement rack is fixedly connected to the outer wall of the water conveying tank, the bottom end of the lifting electric push rod is fixedly connected to the upper surface of the bearing moving plate, and the top end of the lifting electric push rod is fixedly connected to the bottom end of the T-shaped spray frame.

[0018] A further improvement of the technical solution of the present invention is that: a conveying pipe is fixedly connected to one side of the T-shaped water spray frame, and the end of the conveying pipe away from the T-shaped water spray frame is fixedly connected to one side of the conveying water tank.

[0019] By adopting the above technical solution, the T-shaped water spray frame and the side spray frame are used in combination, which enables the device to carry out curing work on the top and one side of the precast box girder at the same time, improving the curing efficiency. At the same time, the height of the T-shaped water spray frame can be adjusted by using the lifting electric push rod and the guide telescopic rod, which further improves the applicability of the device for curing.

[0020] A further improvement of the technical solution of the present invention is that: the top outer wall of the lifting electric push rod is fixedly connected to the top of the guide telescopic rod through a mounting bracket, the bottom end of the guide telescopic rod is fixedly connected to the upper surface of the bearing moving plate, and a push handle is fixedly connected to the upper surface of one end of the bearing moving plate.

[0021] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0022] 1. This invention provides a precast box girder maintenance device. By utilizing the combined use of a buffer sleeve, an internal sliding cylinder, rubber rollers, and a retraction spring in the anti-collision assembly, the load-bearing moving plate can be passively corrected when it accidentally deviates from its moving path, thus avoiding impact with the outer wall of the precast box girder and preventing damage to the equipment and the precast box girder.

[0023] 2. This invention provides a precast box girder maintenance device. By using an adjusting sleeve, an internal adjusting cylinder, and a spring rod in combination, the required impact protection range of the moving plate can be adjusted and changed according to the needs, thereby making it suitable for different spacings between precast box girders and improving the applicability of the device.

[0024] 3. This invention provides a precast box girder curing device. By using a T-shaped water spray frame and a side spray frame in combination, the device can simultaneously perform curing work on the top and one side of the precast box girder, improving the curing efficiency. At the same time, by using a lifting electric push rod and a guide telescopic rod in combination, the height of the T-shaped water spray frame can be adjusted, further improving the applicability of the device for curing. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the main device structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the anti-collision component structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the buffer sleeve structure of the present invention;

[0029] Figure 5 This is a rear view schematic diagram of the supporting movable plate structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the receiving base structure of the present invention.

[0031] In the diagram: 1. Main unit; 2. Support base; 3. Supporting moving plate; 4. Placement frame; 5. Water tank; 6. Lifting electric push rod; 7. T-shaped spray frame; 8. Guide telescopic rod; 9. Side spray frame; 10. Anti-collision component; 11. Adjusting sleeve; 12. Buffer sleeve; 13. Insertion positioning frame; 14. Built-in adjusting cylinder; 15. Spring insert rod; 16. Built-in slide cylinder; 17. Rubber roller; 18. Contraction spring; 19. Built-in slide groove; 20. Guide slider; 21. Delivery pipe; 22. Push handle; 23. Water collection tank. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to embodiments: Example 1

[0033] like Figure 1-6 As shown, the present invention provides a precast box girder curing device, including a main device 1, which includes a loading unit, an anti-collision unit, and a curing water spraying unit.

[0034] The loading unit includes a carrying movable plate 3, a placement frame 4 and a push handle 22. The anti-collision unit includes anti-collision components 10 located on both sides of the placement frame 4. The maintenance watering unit includes a water delivery tank 5, a lifting electric push rod 6, a T-shaped water spray frame 7, a guide telescopic rod 8 and a side spray frame 9.

[0035] The anti-collision assembly 10 includes an adjusting sleeve 11, a buffer sleeve 12, a plug-in positioning frame 13, a built-in adjusting cylinder 14, a spring plug rod 15, a built-in slide cylinder 16, a rubber roller 17, a contraction spring 18, and a guide slider 20. The inner wall of the buffer sleeve 12 is provided with a built-in slide groove 19. A receiving base 2 is provided on one side of the supporting moving plate 3. The upper surface of the adjusting sleeve 11 is provided with a mounting hole for plugging in the spring plug rod 15.

[0036] The inner wall of the top of the built-in slide cylinder 16 is rotatably connected to both ends of the rubber roller 17. The inner wall of the built-in slide groove 19 is slidably connected to the outer wall of the guide slider 20. The top of the inner wall of the built-in slide cylinder 16 is fixedly connected to the top of the compression spring 18. The bottom end of the compression spring 18 is fixedly connected to the bottom end of the inner wall of the buffer sleeve 12. When the built-in slide cylinder 16 is compressed by the compression spring 18, the guide slider 20 installed on its outer wall slides on the inner wall of the built-in slide groove 19 to guide and limit the movement of the built-in slide cylinder 16.

[0037] The supporting movable plate 3 is pushed between the precast box girders, and then the T-shaped water spray frame 7 and the side spray frame 9 are activated so that the two can spray water on both sides and the top of the precast box girder at the same time. After the curing is completed, the water will be collected along the outer wall of the precast box girder and stored in the water collection trough 23 installed on the outer wall of the receiving base 2.

[0038] The bottom end of the buffer sleeve 12 is fixedly connected to one end of the built-in regulating cylinder 14, and the outer wall of the other end of the built-in regulating cylinder 14 is slidably connected to the inner wall of the regulating sleeve 11. A water collection trough 23 is fixedly connected to the outer wall of the receiving base 2. The residual curing water on the outer wall of the precast box girder falls into the water collection trough 23. After standing in the water collection trough 23 for a period of time, it can be extracted and reused, saving water resources and avoiding the problem of curing water falling on the ground, causing the ground to become muddy and affecting the movement of equipment.

[0039] The bottom end of the spring rod 15 is inserted into the inner wall of the mounting hole, and the bottom end of the anti-collision component 10 is inserted into the inner wall of the insertion positioning frame 13. When used on precast box girders with different spacing, pull the spring rod 15 to lift it up, and then pull the buffer sleeve 12 to move it outward, so that the built-in adjusting sleeve 14 is pulled outward from the adjusting sleeve 11. Then, insert the spring rod 15 into the corresponding mounting hole to complete the outward movement of the buffer sleeve 12 and expand the anti-collision range. Conversely, the anti-collision range can be reduced. The anti-collision component 10 and the insertion positioning frame 13 are fixedly connected to one side of the placement frame 4 by screws. Example 2

[0040] like Figure 1-6 As shown, based on Embodiment 1, the present invention provides a technical solution: preferably, the bottom surface of the placement rack 4 is fixedly connected to the upper surface of the support moving plate 3, and the bottom surface of the support moving plate 3 is fixedly connected with casters.

[0041] The inner wall of the placement rack 4 is fixedly connected to the outer wall of the water delivery tank 5, the bottom end of the lifting electric push rod 6 is fixedly connected to the upper surface of the bearing moving plate 3, and the top end of the lifting electric push rod 6 is fixedly connected to the bottom end of the T-shaped water spray frame 7.

[0042] A delivery pipe 21 is fixedly connected to one side of the T-shaped water spray frame 7, and the end of the delivery pipe 21 away from the T-shaped water spray frame 7 is fixedly connected to one side of the delivery water tank 5.

[0043] The top outer wall of the lifting electric actuator 6 is fixedly connected to the top of the guide telescopic rod 8 via a mounting bracket. When the height of the T-shaped water spray frame 7 needs to be adjusted, the lifting electric actuator 6 is activated, causing the lifting electric actuator 6 to push the T-shaped water spray frame 7 upward, thereby adjusting the device's water spraying and curing work on the top of the higher precast box girder. Conversely, the T-shaped water spray frame 7 is adjusted downward to reduce the curing height and improve the applicability of the device to the curing of the top of the precast box girder. The bottom end of the guide telescopic rod 8 is fixedly connected to the upper surface of the bearing moving plate 3, and a push handle 22 is fixedly connected to the upper surface of one end of the bearing moving plate 3.

[0044] The working principle of this precast box girder curing device will be explained in detail below.

[0045] like Figure 1-6 As shown, during use, the supporting movable plate 3 is pushed between the precast box girders, and then the T-shaped water spray frame 7 and the side spray frame 9 are activated so that the two spray water on both sides and the top of the precast box girder at the same time. After the curing is completed, the water will be collected along the outer wall of the precast box girder and stored in the water collection trough 23 installed on the outer wall of the receiving base 2.

[0046] During the process of the moving plate 3 being pushed forward, the rubber rollers 17 installed on both sides of the placement frame 4 will overlap with one side of the precast box girder. When the moving plate 3 deviates from its forward path and moves closer to one side of the precast box girder, the rubber rollers 17 are first compressed and then push the reaction force into the built-in slide cylinder 16, which compresses the spring 18. The reaction force of the spring 18 is used for buffering, and at the same time, the moving path of the moving plate 3 is passively corrected to prevent the side spraying frame 9 from hitting one side of the precast box girder and causing damage.

[0047] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A precast box girder curing device, comprising a main device (1), characterized in that: The main device (1) includes a loading unit, an anti-collision unit, and a maintenance watering unit; The loading unit includes a carrying movable plate (3), a placement frame (4) and a push handle (22). The anti-collision unit includes anti-collision components (10) located on both sides of the placement frame (4). The maintenance watering unit includes a water delivery tank (5), a lifting electric push rod (6), a T-shaped water spray frame (7), a guide telescopic rod (8) and a side spray frame (9). The anti-collision assembly (10) includes an adjusting sleeve (11), a buffer sleeve (12), a plug-in positioning frame (13), a built-in adjusting cylinder (14), a spring plug (15), a built-in slide cylinder (16), a rubber roller (17), a retraction spring (18), and a guide slider (20). The inner wall of the buffer sleeve (12) is provided with a built-in slide groove (19). A receiving base (2) is provided on one side of the bearing moving plate (3). The upper surface of the adjusting sleeve (11) is provided with a mounting hole for plugging in the spring plug (15). The inner wall of the top of the built-in slide cylinder (16) is rotatably connected to both ends of the rubber roller (17). Guide sliders (20) are installed on the outer walls of both sides of the built-in slide cylinder (16). The inner wall of the built-in slide groove (19) is slidably connected to the outer wall of the guide slider (20). The top of the inner wall of the built-in slide cylinder (16) is fixedly connected to the top of the contraction spring (18). The bottom end of the contraction spring (18) is fixedly connected to the bottom end of the inner wall of the buffer sleeve (12). The bottom end of the buffer sleeve (12) is fixedly connected to one end of the built-in regulating cylinder (14), the outer wall of the other end of the built-in regulating cylinder (14) is slidably connected to the inner wall of the regulating sleeve (11), and a water collection tank (23) is fixedly connected to the outer wall of the receiving base (2). The bottom end of the spring insert (15) is inserted into the inner wall of the mounting hole, and the bottom end of the anti-collision component (10) is inserted into the inner wall of the insertion positioning frame (13). The anti-collision component (10) and the insertion positioning frame (13) are fixedly connected to one side of the placement frame (4) by screws. The bottom surface of the placement rack (4) is fixedly connected to the upper surface of the bearing movable plate (3), and the bottom surface of the bearing movable plate (3) is fixedly connected with casters; The inner wall of the placement rack (4) is fixedly connected to the outer wall of the water conveying tank (5), the bottom end of the lifting electric push rod (6) is fixedly connected to the upper surface of the bearing moving plate (3), and the top end of the lifting electric push rod (6) is fixedly connected to the bottom end of the T-shaped spray frame (7). A delivery pipe (21) is fixedly connected to one side of the T-shaped water spray frame (7), and the end of the delivery pipe (21) away from the T-shaped water spray frame (7) is fixedly connected to one side of the delivery water tank (5). The top outer wall of the lifting electric push rod (6) is fixedly connected to the top of the guide telescopic rod (8) through the mounting bracket. The bottom end of the guide telescopic rod (8) is fixedly connected to the upper surface of the bearing moving plate (3). A push handle (22) is fixedly connected to the upper surface of one end of the bearing moving plate (3).

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