Box girder maintenance device

Abstract

The utility model discloses a box girder maintenance device, which belongs to the technical field of building construction equipment and comprises a supporting component, a spraying component and a covering part. Wherein the supporting assembly comprises a supporting frame and a plurality of supporting legs, the supporting legs are arranged at the bottom of the supporting frame, the supporting frame and the supporting legs jointly define a containing space, the box girder can be placed in the containing space, and the supporting frame can stretch out and draw back in the first linear direction so as to change the size of the containing space; the spraying assembly is arranged on the supporting frame and comprises a water supply pipe and a plurality of spraying branch pipes, the water supply pipe can stretch out and draw back in the first linear direction, the spraying branch pipes are arranged on the side wall of the water supply pipe and communicate with the water supply pipe, spraying holes are formed in the bottoms of the spraying branch pipes, and the spraying holes can spray water into the containing space; the covering part is arranged at the top of the supporting frame and can cover the containing space, and compared with a traditional manual spraying mode, uneven maintenance and potential safety hazards caused by improper manual operation are reduced, and the safety of maintenance operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction equipment, in particular to a box beam maintenance device. Background Art

[0002] In modern transportation infrastructure construction, the construction of viaducts is increasing. Cast-in-place box girders, a key structural form of viaducts, require timely and appropriate curing after casting to ensure the strength and durability of the concrete. A common curing method is to spray the box girders with water. This maintains the surface moisture of the concrete, preventing cracks and other quality issues caused by rapid evaporation during the hardening process.

[0003] The existing water spray curing process for box girders involves operators collecting water from a surface water point, using pressurized mercury to direct it to the viaduct deck, and then manually spraying it for maintenance. However, if the operator mishandles the manual water spraying method, it can easily cause the water to spray directly onto the protective shed or even the high-voltage power grid, posing a significant safety hazard. Utility Model Content

[0004] The purpose of the utility model is to provide a box girder maintenance device to solve the technical problem of poor safety of artificial water spray maintenance in the prior art.

[0005] As conceived above, the technical solution adopted by the present utility model is:

[0006] A box girder maintenance device, comprising:

[0007] A support assembly comprising a support frame and a plurality of legs, wherein the legs are disposed at the bottom of the support frame, the support frame and the legs together enclose a receiving space, the box beam can be placed in the receiving space, and the support frame can be extended and retracted along a first linear direction to change the size of the receiving space;

[0008] a spray assembly disposed on the support frame, the spray assembly comprising a water supply pipe and a plurality of spray branches, the water supply pipe being capable of extending and retracting along the first straight line, the spray branches being disposed on side walls of the water supply pipe and connected to the water supply pipe, the bottoms of the spray branches being provided with spray holes capable of spraying water into the accommodating space;

[0009] The covering member is arranged on the top of the supporting frame and can cover the accommodating space.

[0010] Preferably, the support frame includes two longitudinal bars and two transverse bars, the longitudinal bars and the transverse bars are connected end to end in sequence to form a rectangle, the longitudinal bars extend perpendicular to the transverse bars, and the transverse bars extend along a first straight line direction and can be retracted and contracted along their own axis.

[0011] Preferably, the cross bar comprises a plurality of rod bodies which are coaxially sleeved on each other in sequence, and one of two adjacent rod bodies can be locked in the other rod body.

[0012] Preferably, the spray branch pipe extends in a direction perpendicular to the first straight line, one end of the spray branch pipe is connected to the water supply pipe, and the other end of the spray branch pipe is connected to the support frame. Multiple spray branch pipes are arranged at intervals along the first straight line direction, and the spray branch pipes on both sides of the water supply pipe are symmetrically arranged.

[0013] Preferably, two reinforcing rods are provided between two adjacent spray branch pipes, and both ends of the reinforcing rods are respectively connected to different spray branch pipes. The two reinforcing rods are cross-arranged and hinged to each other at the intersection.

[0014] Preferably, a stabilizing rod is provided between the support frame and the support legs, and the stabilizing rod, the support frame and the support legs are arranged in a triangle.

[0015] Preferably, the covering member is made of waterproof cloth, and the waterproof cloth is detachably connected to the support frame.

[0016] Preferably, a plurality of the spray holes are arranged at intervals along the axial direction of the bottom of the spray branch pipe, and a spray head is detachably provided corresponding to each of the spray holes.

[0017] Preferably, the nozzle can rotate along its own axis to adjust the water spraying angle.

[0018] Preferably, the supporting legs are capable of extending and retracting along their own axial directions.

[0019] Beneficial effects of the utility model:

[0020] The box girder maintenance device proposed in the present invention forms an adjustable accommodating space through the cooperation of a retractable support frame and support legs, which can adapt to box girders of different sizes, solving the problem of poor versatility of maintenance devices in the prior art. In the face of cast-in-place box girders of different specifications, there is no need to equip each box girder with a specific maintenance device, which has high adaptability and flexibility. The water supply pipe can be extended and retracted along the first straight line direction so as to follow the synchronous extension and retraction of the support frame. In conjunction with a plurality of spray branches with spray holes, uniform and comprehensive water spray maintenance can be achieved. Compared with the traditional manual spraying method, it reduces uneven maintenance and safety hazards caused by improper human operation, and improves the safety of maintenance operations. The cover is arranged on the top cover accommodating space of the support frame, which can effectively form a shielding layer to prevent water from accidentally spraying onto components such as the high-voltage power grid during the water spraying process, further improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a top view of the box girder maintenance device provided by an embodiment of the utility model;

[0022] Figure 2 It is a front view of the box girder maintenance device provided by an embodiment of the utility model.

[0023] In the picture:

[0024] 1. Support assembly; 101. Accommodation space; 11. Support frame; 111. Crossbar; 112. Longitudinal bar; 12. Support legs; 13. Stabilizer bar;

[0025] 2. Spray assembly; 21. Water supply pipe; 22. Spray branch pipe; 23. Reinforcement rod; 24. Spray head;

[0026] 3. Covering parts. DETAILED DESCRIPTION

[0027] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0031] See also Figure 1 and Figure 2 The box girder maintenance device provided by the embodiment of the present invention includes a support assembly 1, a spray assembly 2 and a cover 3. The support assembly 1 includes a support frame 11 and a plurality of legs 12. The legs 12 are arranged at the bottom of the support frame 11. The support frame 11 and the legs 12 are together arranged to form an accommodating space 101. The box girder can be placed in the accommodating space 101. The support frame 11 can be extended and retracted along a first linear direction to change the size of the accommodating space 101. The spray assembly 2 is arranged on the support frame 11. The spray assembly 2 includes a water supply pipe 21 and a plurality of spray branches 22. The water supply pipe 21 can be extended and retracted along a first linear direction. The spray branches 22 are arranged on the side walls of the water supply pipe 21 and are connected to the water supply pipe 21. The bottom of the spray branches 22 is provided with spray holes, which can spray water into the accommodating space 101. The cover 3 is arranged on the top of the support frame 11 and can cover the accommodating space 101.

[0032] The box girder maintenance device proposed in the present invention forms an adjustable accommodating space 101 by cooperating with a retractable support frame 11 and support legs 12. It can accommodate box girders of different sizes, solving the problem of poor versatility of maintenance devices in the prior art. In the face of cast-in-place box girders of different specifications, there is no need to equip each box girder with a specific maintenance device, which has high adaptability and flexibility. The water supply pipe 21 can be extended and retracted along the first straight line direction so as to follow the synchronous extension and retraction of the support frame 11. In conjunction with a plurality of spray branches 22 with spray holes, uniform and comprehensive water spray maintenance can be achieved. Compared with the traditional manual spraying method, it reduces uneven maintenance and safety hazards caused by improper human operation, and improves the safety of maintenance operations. The cover 3 is arranged on the top of the support frame 11 to cover the accommodating space 101, which can effectively form a shielding layer to prevent water from accidentally spraying onto components such as the high-voltage power grid during the water spraying process, further improving safety.

[0033] In this embodiment, the first straight line direction is defined as the horizontal direction. For the convenience of description in conjunction with the drawings, the directions below are described based on the directions shown in the drawings, but are not limited thereto.

[0034] The specific structure of the above-mentioned box girder maintenance device is described in detail below.

[0035] The support assembly 1 is used to support the spray assembly 2 and the cover 3, so as to realize the water spray maintenance of the box beam in the accommodating space 101. The support frame 11 can be extended and retracted to realize the change of the size of the accommodating space 101. Specifically, the support frame 11 includes two longitudinal bars 112 and two transverse bars 111. The longitudinal bars 112 and the transverse bars 111 are connected end to end in a rectangular shape. The longitudinal bars 112 extend perpendicular to the transverse bars 111. The transverse bars 111 extend along the first straight line direction and can be extended and retracted along their own axis. Through the cooperation of the transverse bars 111 and the longitudinal bars 112, it is possible to achieve a supporting effect, improve space utilization, and save costs. The transverse bar 111 can be extended and retracted along its own axis, which can drive the support frame 11 to extend and retract as a whole to realize the change of the size of the accommodating space 101.

[0036] Specifically, the crossbar 111 comprises a plurality of coaxially nested rods. One of the two adjacent rods can be locked into the other, allowing the length of the crossbar 111 to be adjusted by pulling or pressing the end of the rod, thereby adapting to box girders of different sizes. Specifically, one of the two adjacent rods has a movable stopper protrusion on its outer surface, and the other rod has a corresponding stopper hole. When the rods are pulled to a certain distance, the stopper protrusion aligns with and engages with the stopper hole, thereby achieving a locking function for the two rods. When the rods are pressed, the stopper protrusion is forced to retract, releasing the stopper and allowing the rods to freely extend and retract. This locking function ensures that the length of the crossbar 111 remains stable during the maintenance process and will not change due to external factors or the vibration of the device itself, thereby providing continuous and stable support for the box girder and ensuring the smooth progress of maintenance work. Furthermore, this simple and easy-to-operate structure improves operator efficiency and reduces maintenance preparation time.

[0037] The expansion and contraction of the crossbar 111 can realize the expansion and contraction of the support frame 11 in the horizontal direction, thereby changing the size of the accommodating space 101 to adapt to different box beams. In order to further improve the adaptability of the box beam maintenance device so that it can adapt to box beams of different heights, in this embodiment, the support legs 12 can be expanded and contracted along their own axis, so that the size of the accommodating space 101 can be changed by expansion and contraction in the vertical direction. Whether in a space with limited height or facing a box beam of special size, it is possible to build an accommodating space 101 that adapts to the box beam by flexibly adjusting the length of the crossbar 111 and the support legs 12 to facilitate maintenance operations, further improving the adaptability and versatility of the box beam maintenance device. Regarding the expansion and contraction of the support legs 12, it can be expanded and contracted by setting a hydraulic cylinder, or it can be expanded and contracted by an electric pump. There is no limitation here. It is only necessary to ensure that the support legs 12 can be expanded and contracted in the height direction.

[0038] Regarding the location and number of the legs 12. In this embodiment, four legs 12 are provided, and the four legs 12 are fixedly connected to the four corners of the support frame 11. In other embodiments, six, eight, etc. legs 12 may also be provided, which is not limited here.

[0039] In order to improve the stability of the support assembly 1, a stabilizing rod 13 is arranged between the support frame 11 and the support leg 12. The stabilizing rod 13, the support frame 11 and the support leg 12 are arranged in a triangle. Through the arrangement of the stabilizing rod 13 and the special geometric properties of the triangle, when the box girder maintenance device is subjected to various external forces such as strong wind and vibration during the maintenance process, the stabilizing rod 13 can effectively disperse and transmit force, prevent the support frame 11 and the support leg 12 from deformation or displacement, avoid affecting the maintenance effect due to the instability of the device, and even cause safety accidents, thereby improving the stability and safety of the support assembly 1.

[0040] About the spray assembly 2. The spray assembly 2 sprays water into the accommodating space 101 through the spray branch pipe 22, thereby realizing the maintenance process of the box girder. Specifically, the spray branch pipe 22 extends in a direction perpendicular to the first straight line, one end of the spray branch pipe 22 is connected to the water supply pipe 21, and the other end of the spray branch pipe 22 is connected to the support frame 11. Multiple spray branch pipes 22 are arranged at intervals along the first straight line direction, and the spray branch pipes 22 on both sides of the water supply pipe 21 are symmetrically arranged. The spray branch pipes 22 extend in a direction perpendicular to the first straight line and are connected to the support frame 11. This layout enables the spray branch pipes 22 to be stably fixed on the support frame 11 and is not easy to shake or shift during the maintenance process. Multiple spray branch pipes 22 are arranged at intervals along the first straight line direction, and the spray branch pipes 22 on both sides of the water supply pipe 21 are symmetrically arranged, which can realize all-round and uniform water spray maintenance of the box girder, avoiding the occurrence of maintenance dead corners and uneven maintenance. There is no limitation on the number of the spray branch pipes 22 , and the number needs to be adaptively selected according to the length of the water supply pipe 21 .

[0041] To improve the stability of the spray branch pipes 22, two reinforcing rods 23 are installed between adjacent spray branch pipes 22. Each end of the reinforcing rod 23 is connected to a different spray branch pipe 22. The two reinforcing rods 23 are intersectingly arranged and hinged at the intersection. These two intersecting and hinged reinforcing rods 23, on the one hand, can more evenly distribute and withstand external forces from all directions, enhancing the connection strength and overall stability between the spray branch pipes 22. On the other hand, the hinged arrangement provides a certain degree of freedom for the reinforcing rods 23, preventing the reinforcing rods 23 from being fixed and interfering with the extension and retraction of the cross bar 111 and the water supply pipe 21, thereby improving the adaptability of the reinforcing rods 23.

[0042] Specifically, the bottom of the spray branch pipe 22 is provided with multiple spray holes spaced axially, each with a removable nozzle 24. These multiple nozzles operate simultaneously, ensuring that all parts of the box girder receive sufficient and even water, preventing localized under-maintenance and effectively improving the quality of box girder maintenance. Each removable nozzle 24 ensures a more uniform distribution of water within the nozzle and provides pressure for the water flow, extending its reach and optimizing the spraying effect. Furthermore, different types and specifications of nozzles 24 can be installed or replaced based on the specific maintenance requirements and environmental conditions of the box girder. For example, a wide-angle nozzle can be selected for a wider spray range, while a fine-aperture nozzle can be used for concentrated water spraying for key areas of maintenance. The removable nozzle 24 design facilitates operator adjustment based on specific circumstances, enhancing the adaptability and practicality of the box girder maintenance device.

[0043] Furthermore, since there may be irregularities in the shape and structure of the box girder, the nozzle 24 is hinged to the spray hole through a ball joint, so that the nozzle 24 can rotate along its own axis to adjust the water spray angle. By flexibly adjusting the water spray angle of the nozzle 24, the water spray trajectory and coverage range can be changed according to actual conditions to adapt to different maintenance needs and optimize maintenance quality.

[0044] Regarding the specific structure of the water supply pipe 21. The water supply pipe 21 includes a plurality of coaxially sleeved pipes, one of which can be locked in the other adjacent pipe, so that the water supply pipe 21 can be synchronously extended and retracted by the extension and retraction of the cross bar 111, thereby improving the synchronization of the operation process.

[0045] In addition, the spray assembly 2 also includes a water pump and a water tank. The water tank is used to store water, and the water pump is used to pump water in the water tank to the water supply pipe 21, providing power for the water flow so that it can be sprayed out of the spray hole. The water pump is an existing mechanical device, and its working principle and specific structure are not detailed here.

[0046] Regarding the covering member 3, specifically, the covering member 3 is made of waterproof cloth, and the waterproof cloth is detachably connected to the support frame 11. The waterproof cloth has excellent waterproof performance and can effectively prevent external impurities such as rainwater and dust from entering the accommodating space 101, providing a relatively clean and dry maintenance environment for the box girder to ensure the quality of maintenance. At the same time, it can also prevent water splashing during the spraying process, which may cause safety hazards. Compared with covering members 3 made of other materials, the waterproof cloth has a lower cost and can reduce the overall cost of the maintenance device and improve the economy of the device. In addition, the detachable connection method makes it possible to quickly and easily remove the waterproof cloth when the box girder needs to be inspected, repaired or other operations are performed, which is simple to operate, saves time and improves work efficiency. The waterproof cloth can be made of existing plastic film, plastic-coated canvas or nylon cloth and other materials, which are not limited here. It is only necessary to ensure that the waterproof effect can be achieved.

[0047] The above embodiments merely illustrate the basic principles and features of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications are possible without departing from the spirit and scope of the present invention. Such changes and modifications are within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A box girder maintenance device, characterized in that: include: A support assembly (1) comprises a support frame (11) and a plurality of legs (12), wherein the legs (12) are arranged at the bottom of the support frame (11), the support frame (11) and the legs (12) are jointly arranged to form an accommodating space (101), a box beam can be placed in the accommodating space (101), and the support frame (11) can be extended and retracted along a first straight line direction to change the size of the accommodating space (101); A spray assembly (2) is arranged on the support frame (11), the spray assembly (2) comprising a water supply pipe (21) and a plurality of spray branches (22), the water supply pipe (21) being capable of extending and retracting along the first straight line direction, the spray branches (22) being arranged on the side wall of the water supply pipe (21) and being connected to the water supply pipe (21), and a spray hole being provided at the bottom of the spray branch pipe (22), the spray hole being capable of spraying water into the accommodating space (101); A covering member (3) is arranged on the top of the support frame (11) and is capable of covering the accommodating space (101).

2. The box beam maintenance device according to claim 1, characterized in that: The support frame (11) comprises two longitudinal bars (112) and two transverse bars (111); the longitudinal bars (112) and the transverse bars (111) are connected end to end in sequence to form a rectangle; the longitudinal bars (112) extend perpendicular to the transverse bars (111); and the transverse bars (111) extend along a first straight line direction and are capable of extending and retracting along their own axial direction.

3. The box beam maintenance device according to claim 2, characterized in that: The crossbar (111) comprises a plurality of rod bodies which are coaxially sleeved on each other in sequence, and one of the two adjacent rod bodies can be locked in the other rod body.

4. The box beam maintenance device according to claim 1, characterized in that: The spray branch pipe (22) extends in a direction perpendicular to the first straight line, one end of the spray branch pipe (22) is connected to the water supply pipe (21), and the other end of the spray branch pipe (22) is connected to the support frame (11), and a plurality of the spray branch pipes (22) are arranged at intervals along the first straight line direction, and the spray branch pipes (22) on both sides of the water supply pipe (21) are symmetrically arranged.

5. The box beam maintenance device according to claim 4, characterized in that: Two reinforcing rods (23) are arranged between two adjacent spray branch pipes (22), and the two ends of the reinforcing rods (23) are respectively connected to different spray branch pipes (22). The two reinforcing rods (23) are arranged crosswise and hinged to each other at the intersection.

6. The box girder maintenance device according to any one of claims 1 to 5, characterized in that: A stabilizing rod (13) is provided between the support frame (11) and the support leg (12); the stabilizing rod (13), the support frame (11) and the support leg (12) are arranged in a triangle.

7. The box girder maintenance device according to any one of claims 1 to 5, characterized in that: The covering member (3) is made of waterproof cloth, and the waterproof cloth is detachably connected to the support frame (11).

8. The box girder maintenance device according to any one of claims 1 to 5, characterized in that: The bottom of the spray branch pipe (22) is provided with a plurality of spray holes spaced apart along its own axial direction, and a spray head (24) is detachably provided corresponding to each spray hole.

9. The box beam maintenance device according to claim 8, characterized in that: The spray head (24) can rotate along its own axis to adjust the water spraying angle.

10. The box beam maintenance device according to any one of claims 1 to 5, characterized in that: The supporting legs (12) can be extended and retracted along their own axial direction.

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