Expressway bridge hogging moment tensioning vehicle support

Abstract

The utility model relates to an expressway bridge hogging moment tensioning vehicle support which comprises a vehicle body used for transferring heavy objects on a bridge. The storage box body is fixedly arranged on the vehicle body and is used for placing heavy objects; the lowering and pushing device is arranged on the vehicle body and used for lowering a heavy object and pushing the heavy object to a pre-installation area; and the chain block is arranged on the lowering and pushing device and is used for hoisting the heavy object. The whole transportation and installation process comprises the following steps: placing the heavy object in the storage box body to ensure that the heavy object is fixed; an operator directly pushes the vehicle body and transfers a heavy object to a destination through the vehicle body; a chain block is used for hoisting, and the heavy object is transferred to a lowering and pushing device; and the lowering and pushing device is started, and the heavy object is lowered and pushed to the mounting area. The device effectively combines the functions of transferring, pushing and hoisting, provides a safe and reliable equipment choice for bridge construction, and improves the overall construction efficiency and safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of highway bridge construction technology, in particular to a highway bridge negative bending moment tensioning vehicle support. BACKGROUND

[0002] In the current negative bending moment tensioning process of highway simply supported continuous beams, a hanging basket operation platform is mainly used in combination with a truck crane to assist in lifting the jack. However, in the hanging basket operation process, the truck crane used in this way is a large lifting device, which is high in cost and low in safety, and has a high risk of falling from a high altitude. In addition, a bridge lifting vehicle can also be used for construction, but this method requires that the bridge have a traffic condition, and it is difficult to achieve for high bridges, river-crossing bridges and deep valley bridges. How to solve the smooth lifting of the jack in the high-altitude platform and the high, river-crossing bridge and deep valley bridge with poor traffic conditions has become a construction problem. CONTENT OF THE UTILITY MODEL

[0003] The embodiment of the present application provides a highway bridge negative bending moment tensioning vehicle support to solve the safety risk of using a large lifting device when lifting the jack in the related art, and the difficulty in arranging the large lifting device for the scene of the high, river-crossing bridge and deep valley bridge, and the difficulty in achieving lifting.

[0004] In a first aspect, a highway bridge negative bending moment tensioning vehicle support is provided, which includes a vehicle body for transporting heavy objects on a bridge, a storage box body fixedly arranged on the vehicle body for placing the heavy objects, a lowering and pushing device arranged on the vehicle body for lowering and pushing the heavy objects to a pre-installation area, and a hand-operated hoist arranged on the lowering and pushing device for lifting the heavy objects.

[0005] In some embodiments, the lowering and pushing device includes a vertical telescopic assembly and a horizontal telescopic assembly, the vertical telescopic assembly is fixedly connected with the vehicle body, and the bottom is vertically connected with the horizontal telescopic assembly; the vertical telescopic assembly is used for lowering the horizontal telescopic assembly, and the horizontal telescopic assembly is used for carrying the heavy objects and horizontally extending them to the installation area.

[0006] In some embodiments, a first lifting ring is arranged on the vertical telescopic assembly for connecting with an upper lifting hook of the hand-operated hoist; a second lifting ring is arranged on the horizontal telescopic assembly for connecting with a lower lifting hook of the hand-operated hoist; and a lifting ring is arranged on the heavy object for connecting with the lower lifting hook of the hand-operated hoist.

[0007] In some embodiments, the vertical telescopic assembly comprises a first vertical through-cylinder, a telescopic rod and a first pin shaft; the first vertical through-cylinder is fixedly connected with the vehicle body; the telescopic rod penetrates through the first vertical through-cylinder and moves up and down along the length direction thereof; the end of the telescopic rod away from the ground is provided with a plurality of first through-holes along the length direction thereof, and the first pin shaft penetrates through the corresponding first through-holes and abuts against the end of the first vertical through-cylinder away from the ground, so as to fix the telescopic rod; the end of the telescopic rod close to the ground is vertically connected with the horizontal telescopic assembly.

[0008] In some embodiments, the horizontal telescopic assembly comprises a horizontal hollow plate, a telescopic plate and a second pin shaft; the end of the telescopic rod close to the ground is vertically connected with the horizontal hollow plate; the telescopic plate penetrates through the horizontal hollow plate and is arranged to move in the horizontal direction; the telescopic plate is arranged with a plurality of second through-holes penetrating through the telescopic plate along the horizontal moving direction, and the second pin shaft penetrates through the corresponding second through-holes and abuts against the corresponding side of the horizontal hollow plate, so as to fix the telescopic plate.

[0009] In some embodiments, the vehicle body is a box-shaped frame structure; the storage box body is arranged on the top surface of the box-shaped frame.

[0010] In some embodiments, the bottom of the box-shaped frame is fixedly provided with four second vertical through-cylinders; the support rods are movably arranged in the four second vertical through-cylinders; the end of the support rod close to the ground is provided with a plurality of third through-holes along the length direction thereof, and the third pin shaft penetrates through the corresponding third through-holes; the third pin shaft abuts against the end of the second vertical through-cylinder close to the ground, so as to support and fix the vehicle body.

[0011] In some embodiments, the end surface of the support rod close to the ground is provided with an anti-skid pad.

[0012] In some embodiments, the vertical telescopic assembly is arranged on one side of the box-shaped frame, and a moving handrail is arranged on the side of the box-shaped frame away from the vertical telescopic assembly.

[0013] In some embodiments, the box-shaped frame is rotatably connected with two wheels at the two ends in the transverse direction, and the two wheels are connected through a synchronous shaft.

[0014] The technical scheme provided by the present application has the beneficial effects of:

[0015] The embodiment of the application provides a highway bridge negative bending moment tensioning vehicle support, wherein the vehicle body is used as the main load-bearing structure of the support, is used for transferring heavy objects on the bridge, and is designed as a frame structure by using high-strength steel materials, so as to ensure the stability and load-carrying capacity. The vehicle body is equipped with a rotating wheel at the bottom, so as to move on the bridge. A storage box body is fixed on the vehicle body and is used for safely placing heavy objects, so as to ensure the stability of the heavy objects during transportation. Anti-skid objects can be designed inside the storage box body to prevent the heavy objects from sliding during movement. Protective edges are arranged around the storage box body to enhance safety. A lowering and pushing device is installed on the vehicle body and is used for lowering and pushing the heavy objects to a pre-installation area, so as to meet the needs of bridge construction. A hand-operated hoist is arranged on the lowering and pushing device and is used for hoisting the heavy objects, so as to facilitate lifting or lowering the heavy objects to a suitable position. The hand-operated hoist should be selected according to the weight of the heavy objects and should have stable and reliable lifting capacity.

[0016] The whole transportation and installation process includes the following steps: placing the heavy objects in the storage box body to ensure that the heavy objects are fixed; directly pushing the vehicle body by an operator to transfer the heavy objects to the destination by using the vehicle body; hoisting the heavy objects by using the hand-operated hoist to transfer the heavy objects to the lowering and pushing device; and starting the lowering and pushing device to lower and push the heavy objects to the installation area. By designing the lowering and pushing device and using the hand-operated hoist, a safe hoisting mode of the heavy objects is provided, the risk of accidents is reduced, the convenient movement of the heavy objects is realized, and the construction efficiency is improved. The device effectively combines the functions of transfer, pushing and hoisting, provides a safe and reliable equipment selection for bridge construction, and improves the overall construction efficiency and safety. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0018] Figure 1 A front view structural schematic diagram of the tensioning vehicle provided by the embodiment of the application is provided.

[0019] Figure 2 A side view structural schematic diagram of the tensioning vehicle provided by the embodiment of the application is provided.

[0020] Figure 3 A transportation process schematic diagram of the tensioning vehicle provided by the embodiment of the application is provided.

[0021] Figure 4 A parking schematic diagram of the tensioning vehicle provided by the embodiment of the application is provided.

[0022] Figure 5 A lower horizontal telescopic assembly schematic diagram of the tensioning vehicle provided by the embodiment of the application is provided.

[0023] Figure 6 A heavy object under the tensioning vehicle provided by the embodiment of the application is shown in the figure.

[0024] Figure 7 A heavy object under the horizontal telescopic assembly provided by the embodiment of the application is shown in the figure.

[0025] In the figure: 1, vehicle body; 2, storage box body; 21, heavy object; 3, vertical telescopic assembly; 31, first lifting ring; 32, first vertical hollow cylinder; 33, telescopic rod; 34, first perforation; 4, horizontal telescopic assembly; 41, second lifting ring; 42, horizontal hollow plate; 43, telescopic plate; 44, second perforation; 5, hand-operated hoist; 51, upper lifting hook; 52, lower lifting hook; 6, second vertical hollow cylinder; 7, support rod; 8, third perforation; 9, lowering and pushing device; 10, wheel; 11, synchronous shaft; 12, bridge; 13, moving handrail. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0027] The embodiment of the present application provides a highway bridge negative bending moment tensioning vehicle support, which can solve the problems of safety risks of using large lifting equipment when hoisting a jack in the related art, and difficulty in hoisting for scenes of high height, river-crossing bridges and deep valley bridges.

[0028] Since the current negative bending moment tensioning process of highway simply supported to continuous beam mainly adopts a basket operation platform and a truck crane to assist in hoisting a jack. However, in the basket operation process, the truck crane used in this way is a large lifting equipment, which has high cost and low safety, and also has the risk of falling from a high altitude; in addition, a bridge lifting vehicle can also be used for construction, but this way needs to have a traffic condition under the bridge, and it is difficult to implement for high height, river-crossing bridges and deep valley bridges; then a device is designed, which can successfully position and install a jack, first, it can be skillfully moved in the construction site, and then a hoisting equipment corresponding to the jack is installed, secondly, a device capable of accurately lowering the jack is designed, which can solve the problem.

[0029] REFERENCE Figures 1-7 , wherein Figure 1The tensioning vehicle front view structure schematic diagram provided by the embodiment of the application; a highway bridge negative bending moment tensioning vehicle support, which comprises a vehicle body 1, which is used for transporting heavy objects 21 on a bridge 12; a storage box body 2, which is fixedly arranged on the vehicle body 1, is used for placing the heavy objects 21; a lowering and pushing device 9, which is arranged on the vehicle body 1, is used for lowering the heavy objects 21 and pushing the heavy objects 21 to a pre-installation area; and a hand-operated hoist 5, which is arranged on the lowering and pushing device 9, is used for lifting the heavy objects 21.

[0030] Through the structural design, the vehicle body 1 serves as the main load-bearing structure of the support and is used for transporting the heavy objects 21 on the bridge 12, and is made of high-strength steel and designed as a frame structure to ensure its stability and load-carrying capacity. The vehicle body 1 is provided with a rotating wheel at the bottom to facilitate movement on the bridge 12. The storage box body 2 is fixed on the vehicle body 1 and is used for safely placing the heavy objects 21, ensuring the stability of the heavy objects 21 during transportation, and the inside of the storage box body 2 can be designed with anti-slip objects to prevent the heavy objects 21 from sliding during movement, and a protective edge is arranged around the storage box body 2 to enhance safety. The lowering and pushing device 9 is installed on the vehicle body 1 and is used for lowering the heavy objects 21 and pushing them to the pre-installation area to meet the needs of bridge 12 construction. The hand-operated hoist 5 is arranged on the lowering and pushing device 9 and is used for lifting the heavy objects 21, facilitating lifting or lowering the heavy objects 21 to a suitable position, and the hand-operated hoist 5 should be selected in a suitable model according to the weight of the heavy objects 21 and should have stable and reliable lifting capacity. The entire transportation and installation process includes: placing the heavy objects 21 in the storage box body 2 to ensure that the heavy objects 21 are fixed; directly pushing the vehicle body 1 by an operator to transport the heavy objects 21 to the destination by using the vehicle body 1; lifting the heavy objects 21 by using the hand-operated hoist 5 to transfer the heavy objects 21 to the lowering and pushing device 9; and starting the lowering and pushing device 9 to lower and push the heavy objects 21 to the installation area. By designing the lowering and pushing device 9 and using the hand-operated hoist 5, a safe lifting method of the heavy objects 21 is provided, the risk of accidents is reduced, the convenient movement of the heavy objects 21 is realized, and the construction efficiency is improved. The device effectively combines the transportation, pushing and lifting functions, provides a safe and reliable equipment selection for bridge 12 construction, and improves the overall construction efficiency and safety.

[0031] In some preferred embodiments, the lowering and pushing device 9 comprises a vertical telescopic assembly 3 and a horizontal telescopic assembly 4, the vertical telescopic assembly 3 is fixedly connected with the vehicle body 1, and the bottom is vertically connected with the horizontal telescopic assembly 4; the vertical telescopic assembly 3 is used for lowering the horizontal telescopic assembly 4, and the horizontal telescopic assembly 4 is used for carrying the heavy objects 21 and horizontally extending them to the installation area.

[0032] Through this structural design, the design and implementation requirements of the lowering and pushing device 9 are specifically divided into a vertical telescopic assembly 3 and a horizontal telescopic assembly 4; the vertical telescopic assembly 3 is fixedly connected to the vehicle body 1, and the bottom is vertically connected to the horizontal telescopic assembly 4, which is used to adjust the lowering height of the horizontal telescopic assembly 4 to adapt to the structure and construction conditions of different bridges 12. It can adopt a hydraulic lifting system or a pneumatic lifting system, so that it can quickly and smoothly adjust the height. The device also has a locking mechanism to ensure safety and stability when lifting or lowering. The horizontal telescopic assembly 4 is responsible for carrying heavy objects 21 and can horizontally stretch them to the installation area to achieve precise placement. It can also be controlled by an electric control system or manually, and the horizontal telescopic assembly 4 can adjust the length of the stretch according to the needs to ensure the precise placement of the heavy objects 21. Through the vertical and horizontal telescopic design, the adaptability of the device is enhanced, which can adapt to different height and space limited construction environments, and quickly adjust and operate, greatly improving the construction efficiency and reducing the time of manual operation. Combined with the lowering and pushing device 9 of the vertical telescopic assembly 3 and the horizontal telescopic assembly 4, this design scheme provides a more flexible and efficient support solution for highway bridge negative moment tensioning operations.

[0033] In some preferred embodiments, a first lifting eye 31 is provided on the vertical telescopic assembly 3 for connecting the upper lifting hook 51 of the chain hoist 5; a second lifting eye 41 is provided on the horizontal telescopic assembly 4 for connecting the lower lifting hook 52 of the chain hoist 5; and a lifting eye is provided on the heavy object 21 for connecting the lower lifting hook 52 of the chain hoist 5.

[0034] Through this structural design, when lifting the heavy object 21, the lower lifting hook 52 of the chain hoist 5 is connected to the lifting eye of the heavy object 21. After the heavy object 21 is lowered to the horizontal telescopic assembly 4, based on the fact that both the vertical telescopic assembly 3 and the horizontal telescopic assembly 4 are provided with lifting eyes, the chain hoist 5 is connected to them through the two lifting hooks respectively. That is, during the process of pushing the heavy object 21 by the horizontal telescopic assembly 4, the chain hoist 5 can provide more stable tensioning support for the vertical telescopic assembly 3 and the horizontal telescopic assembly 4, enhancing the stability of the device.

[0035] In some preferred embodiments, the vertical telescopic assembly 3 includes a first vertical through cylinder 32, a telescopic rod 33, and a first pin shaft; the first vertical through cylinder 32 is fixedly connected to the vehicle body 1; the telescopic rod 33 penetrates the first vertical through cylinder 32 and moves up and down along its length direction; the end of the telescopic rod 33 away from the ground is provided with a plurality of first perforations 34 along its length direction, and the first pin shaft penetrates the corresponding first perforations 34 and abuts against the end of the first vertical through cylinder 32 away from the ground to fix the telescopic rod 33; the end of the telescopic rod 33 close to the ground is vertically connected to the horizontal telescopic assembly 4.

[0036] Through this structural design, the first vertical through cylinder 32 is fixedly connected with the vehicle body 1 by welding, and serves as a guide cylinder for the up-down movement of the telescopic rod 33, while bearing the load during the vertical telescopic process; the telescopic rod 33 can freely move up and down along the length direction of the first vertical through cylinder 32, and the change range is determined by the designed maximum and minimum height. This design allows flexible adjustment according to different working scenes; the end of the telescopic rod 33 away from the ground is provided with a plurality of first perforations 34, which are used for connection with the first pin shaft to fix the position of the telescopic rod 33 when needed; the first pin shaft passes through the corresponding first perforation 34 to abut the end of the telescopic rod 33 with the end of the first vertical through cylinder 32 away from the ground, facilitating quick fixing or releasing, so that the telescopic rod 33 can be quickly adjusted and fixed when needed. The end of the telescopic rod 33 close to the ground is connected with the horizontal telescopic assembly 4 perpendicularly, realizing the accurate up-down and left-right movement of the heavy object 21, and adapting to different working environments; the operator adjusts the position of the telescopic rod 33 according to the needs, inserts the first pin shaft into the appropriate first perforation 34, and fixes the required height to work. Then only the horizontal telescopic assembly 4 needs to be adjusted horizontally.

[0037] In some preferred embodiments, the horizontal telescopic assembly 4 comprises a horizontal hollow plate 42, a telescopic plate 43 and a second pin shaft; the end of the telescopic rod 33 close to the ground is connected with the horizontal hollow plate 42 perpendicularly; the telescopic plate 43 penetrates through the horizontal hollow plate 42 and is arranged to move in the horizontal direction; the telescopic plate 43 is arranged with a plurality of second perforations 44 penetrating through the telescopic plate 43 in the horizontal moving direction, and the second pin shaft penetrates through the corresponding second perforation 44 and abuts with the corresponding side of the horizontal hollow plate 42 to fix the telescopic plate 43.

[0038] Through this structural design, which is similar to the vertical telescopic assembly 3, the horizontal hollow plate 42 provides sufficient bearing capacity and stability. Its top is fixedly connected with the telescopic rod 33, and the horizontal direction is a hollow structure for the movement of the telescopic plate 43. The telescopic plate 43 can freely move in the horizontal direction and penetrates through the horizontal hollow plate 42, and is designed to adapt to different working displacement requirements. A plurality of second perforations 44 penetrating through the telescopic plate 43 are arranged on the telescopic plate 43, which will allow the telescopic plate 43 to be fixed at different positions by configuring the second pin shaft. The second pin shaft penetrates through the corresponding second perforation 44 and abuts with the side of the horizontal hollow plate 42 to form a fixation of the telescopic plate 43, avoiding jolting or movement during positioning and installation. The horizontal telescopic assembly 4 is combined with the vertical telescopic assembly 3 to form a set of efficient and flexible lowering and pushing equipment. This design allows the operator to consider the requirements of height and horizontal position in a diversified construction environment.

[0039] In some preferred embodiments, the vehicle body 1 is a box-shaped frame structure; the storage box body 2 is arranged on the top of the box-shaped frame and is provided with an opening.

[0040] In this structural design, the box-shaped frame structure is made of multiple rigid materials, such as steel or aluminum alloy, so that the vehicle body 1 has good durability. At the same time, the box-shaped design provides a larger space for loading, and the design of the frame enables the internal components of the vehicle body 1 to be arranged better, providing flexibility for the installation of subsequent equipment. The storage box 2 is arranged on the top surface of the vehicle body 1 and is erected on the box-shaped frame through a suitable support mechanism; the open design facilitates the storage and lifting of heavy objects 21.

[0041] In some preferred embodiments, four second vertical tubes 6 are fixed to the four corners of the bottom of the box-shaped frame; a support rod 7 is movably arranged in each of the four second vertical tubes 6, and a plurality of third perforations 8 are arranged on the end of the support rod 7 close to the ground along the length direction of the support rod 7, and a third pin shaft penetrates through the corresponding third perforation 8, and the end of the third pin shaft close to the ground abuts against the second vertical tube 6 to support and fix the vehicle body 1.

[0042] Through this structural design, the second vertical tube 6 is fixed to the four corners of the box-shaped frame, and the tube arranged at the corner can effectively counteract the lateral force received by the vehicle body 1, maintain the balance of the vehicle body, and enhance the stability and support capacity of the vehicle body 1; the support rod 7 is movably arranged in each of the four second vertical tubes 6, which makes the height of the vehicle body 1 adjustable and can adapt to different terrains and environments. The end of the support rod 7 close to the ground is provided with a plurality of third perforations 8 along the length direction of the support rod 7, and a third pin shaft penetrates through the corresponding third perforation 8 and abuts against the end of the second vertical tube 6 close to the ground, forming a stable connection point to enable the vehicle body 1 to be stably fixed to the ground. This design allows the user to quickly adjust the height of the support rod 7 when needed, and only needs to change the position of the third pin shaft to achieve the adjustment of the support height. It should be noted that this support design is mainly used to play the role of parking in place after the vehicle body 1 reaches the destination.

[0043] In some preferred embodiments, the end surface of the support rod 7 close to the ground is provided with a non-slip pad.

[0044] In this structural design, the non-slip pad is usually made of materials with high friction coefficient, such as rubber or polyurethane, which can effectively increase the frictional force between the support rod and the ground and reduce the risk of sliding. The stability of the support rod 7 on the ground directly affects the safety of the entire frame, and the arrangement of the non-slip pad can effectively reduce the risk of tipping or instability caused by ground conditions.

[0045] In some preferred embodiments, the vertical telescopic assembly 3 is arranged on one side of the box-shaped frame, and a mobile handrail 13 is arranged on the side of the box-shaped frame away from the vertical telescopic assembly 3.

[0046] Through this structural design, the mobile handrail 13 is arranged on the box-shaped frame away from one side of the vertical telescopic assembly 3, facilitating users to obtain necessary support when operating the device and facilitating pushing the vehicle body 1 to move.

[0047] In some preferred embodiments, two wheels 10 are rotatably connected to the two ends of the box-shaped frame in the transverse direction, and the two wheels 10 are connected by a synchronous shaft 11.

[0048] Through this structural design, the wheels 10 are installed at the two ends of the box-shaped frame, which can realize convenient movement of the device on the horizontal plane. Connecting the two wheels 10 by the synchronous shaft 11 can ensure that the two wheels 10 rotate synchronously when moving. This design not only increases the stability of the device, but also avoids tilting or imbalance caused by the asynchronization between the wheels.

[0049] The beneficial effects brought by the utility model include:

[0050] The vehicle body 1 is the main load-bearing structure of the support, is used for transferring heavy objects 21 on the bridge 12, and is made of high-strength steel and designed as a frame structure to ensure its stability and load-carrying capacity. The vehicle body 1 is equipped with a rotating wheel at the bottom to facilitate movement on the bridge 12. The storage box body 2 is fixed on the vehicle body 1 and is used for safely placing the heavy objects 21, ensuring the stability of the heavy objects 21 during transportation, and the inside of the storage box body 2 can be designed with anti-skid objects to prevent the heavy objects 21 from sliding during movement, and a protective edge is arranged around the storage box body 2 to enhance safety. The lowering and pushing device 9 is installed on the vehicle body 1 and is used for lowering the heavy objects 21 and pushing them to the pre-installed area to meet the needs of the bridge 12 construction. The hand-operated hoist 5 is arranged on the lowering and pushing device 9 and is used for lifting the heavy objects 21 to facilitate lifting or lowering the heavy objects 21 to a suitable position, and the hand-operated hoist 5 should be selected according to the weight of the heavy objects 21 and should have stable and reliable lifting capacity. The whole transportation and installation process includes: placing the heavy objects 21 in the storage box body 2 to ensure that the heavy objects 21 are fixed; an operator directly pushes the vehicle body 1 to transfer the heavy objects 21 to the destination by using the vehicle body 1; the hand-operated hoist 5 is used for lifting to transfer the heavy objects 21 to the lowering and pushing device 9; and the lowering and pushing device 9 is started to lower and push the heavy objects 21 to the installation area. By designing the lowering and pushing device 9 and using the hand-operated hoist 5, a safe lifting method of the heavy objects 21 is provided, the risk of accidents is reduced, the convenient movement of the heavy objects 21 is realized, and the construction efficiency is improved. The device effectively combines the functions of transfer, pushing and lifting, provides a safe and reliable equipment selection for the bridge 12 construction, improves the overall construction efficiency and safety, and solves the problems of safety risks in using large lifting equipment when hoisting the jack in related technologies and the difficulty in hoisting for scenes of high-height, cross-river bridges and deep valley bridges.

[0051] In the description of the present application, it should be noted that the terms "upper", "lower", and the like are used for indicating the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0053] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A negative moment tensioning truck for a highway bridge, characterized by, The utility model relates to a highway bridge negative bending moment tensioning vehicle support, which comprises a vehicle body (1) for transporting heavy objects (21) on a bridge (12), a storage box body (2) fixedly arranged on the vehicle body (1) for placing the heavy objects (21), a lowering and pushing device (9) arranged on the vehicle body (1) for lowering and pushing the heavy objects (21) to a pre-installation area, and a hand-operated hoist (5) arranged on the lowering and pushing device (9) for hoisting the heavy objects (21).

2. The highway bridge negative bending moment tensioning vehicle support according to claim 1, wherein the vertical telescopic assembly (3) is provided with a first lifting ring (31) for connecting the upper lifting hook (51) of the hand-operated hoist (5); the horizontal telescopic assembly (4) is provided with a second lifting ring (41) for connecting the lower lifting hook (52) of the hand-operated hoist (5); and the heavy objects (21) are provided with a lifting ring for connecting the lower lifting hook (52) of the hand-operated hoist (5).

3. The highway bridge negative bending moment tensioning vehicle support according to claim 1, wherein the vertical telescopic assembly (3) comprises a first vertical through cylinder (32), a telescopic rod (33) and a first pin shaft; the first vertical through cylinder (32) is fixedly connected with the vehicle body (1); the telescopic rod (33) penetrates through the first vertical through cylinder (32) and moves up and down along the length direction of the first vertical through cylinder (32); the end of the telescopic rod (33) away from the ground is provided with a plurality of first through holes (34) along the length direction of the telescopic rod (33), and the first pin shaft penetrates through the corresponding first through holes (34) and abuts against the end of the first vertical through cylinder (32) away from the ground to fix the telescopic rod (33); and the end of the telescopic rod (33) close to the ground is connected perpendicularly with the horizontal telescopic assembly (4).

4. The highway bridge negative bending moment tensioning vehicle support according to claim 3, wherein the horizontal telescopic assembly (4) comprises a horizontal hollow plate (42), a telescopic plate (43) and a second pin shaft; the end of the telescopic rod (33) close to the ground is connected perpendicularly with the horizontal hollow plate (42); the telescopic plate (43) penetrates through the horizontal hollow plate (42) and is arranged to move along the horizontal direction; the telescopic plate (43) is arranged with a plurality of second through holes (44) penetrating through the telescopic plate (43) along the horizontal moving direction, and the second pin shaft penetrates through the corresponding second through holes (44) and abuts against the corresponding side of the horizontal hollow plate (42) to fix the telescopic plate (43).

5. The highway bridge negative bending moment tensioning vehicle support according to claim 1, wherein the vehicle body (1) is a box-shaped frame structure. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The storage box body (2) is provided with an opening on the top surface and is arranged on the box-shaped frame.

6. The negative moment tensioning trolley support for highway bridge according to claim 5, characterized in that: The bottom of the box-shaped frame is fixed with four second vertical through cylinders (6) respectively; The four second vertical through cylinders (6) are movably provided with support rods (7), the end of the support rod (7) close to the ground is provided with a plurality of third through holes (8) along the length direction, and the third pin shafts are arranged through the third through holes (8), the third pin shafts are abutted with the end of the second vertical through cylinder (6) close to the ground to support and fix the trolley body (1).

7. The negative moment tensioning trolley support for highway bridge according to claim 6, characterized in that: The end surface of the support rod (7) close to the ground is provided with a non-slip pad.

8. The negative moment tensioning trolley support for highway bridge according to claim 5, characterized in that: The vertical telescopic assembly (3) is arranged on one side of the box-shaped frame, and the side of the box-shaped frame away from the vertical telescopic assembly (3) is provided with a moving handrail (13).

9. The negative moment tensioning trolley support for highway bridge according to claim 5, characterized in that: The two ends of the box-shaped frame in the transverse direction are rotatably connected with wheels (10) respectively, and the two wheels (10) are connected through a synchronous shaft (11).

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