Assembly type composite beam and slab mounting auxiliary device

Abstract

The assembly type composite beam and slab mounting auxiliary device comprises a base assembly, a damping assembly, a bearing assembly and a locking mechanism which are sequentially connected from bottom to top. Universal wheels are arranged at the lower end of the base assembly; the upper end of the bearing assembly is provided with a containing face used for containing the assembly type superposed beam plate. The damping assemblies are distributed between the base assembly and the bearing assembly in a rectangular array mode. The locking mechanism is installed at the upper end of the bearing assembly and used for abutting against and positioning the assembly type composite beam plate. The mounting auxiliary device has the advantages that after being transported to a construction site along with a heavy truck, the assembly type laminated beam slab is transferred to the mounting auxiliary device, and the assembly type laminated beam slab can be stably and firmly transferred to the position where the lifting device is located in a labor-saving mode through the mounting auxiliary device.

Description

Technical Field

[0001] This utility model relates to the field of installation equipment technology, and in particular to an auxiliary device for the installation of prefabricated composite beams and slabs. Background Technology

[0002] Precast composite beams and slabs are a type of precast concrete component, typically used in building structures for floor slabs, roofs, and walls. These beams and slabs are usually prefabricated in a factory and then transported to the construction site for installation.

[0003] When installing prefabricated composite beams, the prefabricated composite beams are usually transported to the construction site by trucks or other transport vehicles. Then, the construction workers unload the prefabricated composite beams onto transfer vehicles such as flatbed trucks, and then transfer them to lifting devices such as freight elevators. The lifting devices lift the prefabricated composite beams to the working height, and finally transfer the prefabricated composite beams to the construction location.

[0004] During the aforementioned transfer process, the large size and heavy weight of the prefabricated composite beams and slabs make transfer difficult. Typically, due to safety and construction environment limitations, tower cranes cannot be used for batch operations, requiring a significant amount of manpower for manual labor, which is time-consuming and labor-intensive. Furthermore, ordinary transfer tools lack protective measures, making them prone to collisions and slippage, which can cause injuries and property damage, posing safety hazards. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an auxiliary device for the installation of prefabricated composite beams and slabs. It solves the problems of difficult transfer, time and labor consumption, easy collision and lack of anti-slip measures when prefabricated composite beams and slabs are transferred from the heavy truck to the lifting device after being transported to the construction site by heavy truck.

[0006] The technical solution of this utility model is: an auxiliary device for installing prefabricated composite beams and slabs, used to support and fix prefabricated composite beams and slabs; the prefabricated composite beams and slabs are rectangular in shape, and their four side facades include two oppositely arranged end faces and two oppositely arranged side faces.

[0007] The prefabricated composite beam and slab installation auxiliary device includes a base assembly, a shock absorption assembly, a load-bearing assembly, and a locking mechanism connected sequentially from bottom to top;

[0008] The base assembly is equipped with casters at its lower end;

[0009] The upper end of the load-bearing component is provided with a placement surface for placing prefabricated composite beams and slabs;

[0010] The multiple sets of shock-absorbing components are distributed in a rectangular array between the base component and the load-bearing component;

[0011] The locking mechanism is installed on the upper end of the load-bearing component and is used to support and position the assembled composite beam plate.

[0012] As a further improvement of this utility model, the base assembly includes a base, a bottom plate, a caster wheel, a slider A, and a cylinder A;

[0013] The base has an internal cavity and an opening at the lower end that connects to the cavity.

[0014] The base plate is slidably installed in the receiving cavity, the thickness edge of the base plate is slidably engaged with the wall surface of the receiving cavity, and a sliding groove is provided inside the base plate that extends to the thickness edge of the base plate;

[0015] The casters are mounted on the lower surface of the base plate, and an even number are mounted symmetrically along the axis.

[0016] The slider A is slidably installed in the groove and is in a retracted or extended state. When it is in the retracted state, it is entirely located in the groove, and when it is in the extended state, it is partially extended outside the base plate.

[0017] The cylinder A is installed in the receiving cavity, and the cylinder body is fixedly connected to the top surface of the receiving cavity. The telescopic rod is hinged to the upper surface of the base plate. The telescopic rod moves in and out, thereby driving the base plate to move up and down in the receiving cavity. When the telescopic rod is retracted to its shortest length, the universal wheel is located in the receiving cavity. At this time, the annular surface at the lower end of the base is in contact with the ground to bear the weight. When the telescopic rod is extended to its longest length, the universal wheel is exposed outside the lower end of the receiving cavity. At this time, the universal wheel is in contact with the ground to bear the weight.

[0018] As a further improvement of this utility model, the lower surface of the base plate is provided with a strip-shaped hollow hole that communicates with the sliding groove and is consistent with the extending direction of the sliding groove;

[0019] A protruding post is fixedly connected to the lower end of the slider A. The protruding post extends from the strip-shaped hollow hole at the lower end of the base plate. When the slider A moves in the groove, the protruding post moves along the strip-shaped hollow hole.

[0020] As a further improvement of this utility model, the bearing assembly includes a bearing plate A and a bearing plate B. The bearing plate B is fixedly installed at the upper center of the bearing plate A. The size of the bearing plate B is smaller than that of the bearing plate A. A transverse slide rail and a longitudinal slide rail arranged perpendicular to each other are fixedly installed on the bearing plate B. There are two transverse slide rails and two longitudinal slide rails. The two transverse slide rails are arranged opposite to each other, and the two longitudinal slide rails are arranged opposite to each other.

[0021] The lower end of the support plate A is used to connect the shock absorption assembly, and the upper ends of the support plate A and the support plate B are used together to install the locking mechanism;

[0022] The placement surface is located at the center of the upper surface of the support plate B.

[0023] As a further improvement of this utility model, the locking mechanism includes a supporting component and a positioning component;

[0024] The supporting assembly includes a base, cylinder B, and a stop block;

[0025] The two bases are respectively fixedly installed on both sides of the upper end of the bearing plate A and arranged opposite to each other;

[0026] The two sets of cylinders B are respectively embedded in the two bases, and the telescopic rods of the two sets of cylinders B extend horizontally and are arranged facing each other.

[0027] The lower end of the abutment is fixedly connected to a transverse slider. The two abutments are slidably connected to the two transverse slide rails through the transverse sliders. One side wall of the abutment faces the telescopic rod of the adjacent cylinder B, and the other side wall of the abutment faces the end face of the adjacent prefabricated composite beam. The two abutments together clamp the prefabricated composite beam.

[0028] The abutment block moves along the transverse slide rail under the push of the telescopic rod of the cylinder B to abut or disengage from the end face of the assembled composite beam plate.

[0029] The positioning component includes a positioning plate;

[0030] The lower end of the positioning plate is fixedly connected to a longitudinal slider. The two positioning plates are slidably connected to the two longitudinal slide rails by the longitudinal sliders at their respective lower ends. One side wall of the positioning plate faces the side of the adjacent prefabricated composite beam plate. The two positioning plates together clamp the prefabricated composite beam plate.

[0031] As a further improvement of this utility model, the abutment has a positioning recess on the side wall facing the cylinder B, which is opposite to the telescopic rod of the cylinder B and allows the telescopic rod of the cylinder B to extend into it. When the telescopic rod of the cylinder B is inserted into the positioning recess, the extension and retraction of the telescopic rod of the cylinder B will drive the abutment to move back and forth synchronously along the transverse slide rail.

[0032] As a further improvement of this utility model, the sliding resistance between the longitudinal slider and the longitudinal slide rail is greater than 50N, and the sliding resistance between the transverse slider and the transverse slide rail is less than 10N.

[0033] As a further improvement of this utility model, multiple sets of the shock-absorbing components are distributed in a rectangular array between the base and the bearing plate A;

[0034] The shock absorption assembly includes a buffer sleeve, a T-shaped column, a liquid-pumping plate, and a spring.

[0035] The buffer sleeve is a container with an opening at the top and a cavity inside, which is filled with buffer damping fluid. The lower end of the buffer sleeve is welded to the upper surface of the base. The T-shaped column includes a large column section and a small column section connected in sequence. The large column section is fixedly connected to the lower surface of the bearing plate A, and the small column section extends into the cavity of the buffer sleeve through the opening at the top of the buffer sleeve.

[0036] The pusher plate is fixedly connected to the end of the small column section and located in the cavity of the buffer sleeve. The pusher plate is adapted to the cross-section of the cavity of the buffer sleeve to isolate the cavity.

[0037] The spring is sleeved outside the buffer sleeve and the T-shaped column, with its upper end fixedly connected to the lower surface of the bearing plate A and its lower end fixedly connected to the upper surface of the base.

[0038] As a further improvement of this utility model, the number of casters is 4, 6 or 8.

[0039] This utility model has the following advantages compared with the prior art:

[0040] 1. After the prefabricated composite beams are transported to the construction site by heavy truck, the prefabricated composite beams are transferred to the installation auxiliary device. The installation auxiliary device can smoothly (based on the technical effect provided by the shock absorption components), firmly (based on the technical effect provided by the locking mechanism), and labor-saving (based on the technical effect provided by the retractable universal wheels at the bottom of the base) transfer the prefabricated composite beams to the position of the lifting device.

[0041] 2. In the locking mechanism, the two abutment blocks of the abutment component press and fix the two end faces of the prefabricated composite beam plate, and the two positioning plates of the positioning component assist in positioning the two side walls of the prefabricated composite beam plate. The two positioning plates of the positioning component have a certain sliding resistance, which can realize that when the external force is pushed to any position, the movement will stop immediately when the external force is removed. The clamping and fixing method of the positioning component to the abutment component plays a safety role in preventing accidental loosening and slippage.

[0042] 3. In the base assembly, the base plate can be raised and lowered under the drive of cylinder A, thereby causing the casters to retract into the base receiving cavity or extend out of the lower end of the base; when the casters are retracted into the base receiving cavity, the installation auxiliary device is immovable as a whole, which is suitable for situations requiring fixed-point operation (e.g., when transferring prefabricated composite beams from a heavy truck to the installation auxiliary device, or when transferring prefabricated composite beams from the installation auxiliary device to a lifting device); when the casters are extended out of the lower end of the base, the installation auxiliary device can be manually pushed and moved, which is suitable for the process of transferring prefabricated composite beams.

[0043] The present invention will be further described below with reference to the figures and embodiments. Attached Figure Description

[0044] Figure 1 This is a top-view structural schematic diagram of the present invention;

[0045] Figure 2 This is a schematic diagram of the structure of this utility model from a downward viewing angle;

[0046] Figure 3 This is a schematic diagram showing the connection between the base plate and cylinder A from a top-down perspective.

[0047] Figure 4 A schematic diagram showing the connection between the base plate and slider A from a downward viewing angle;

[0048] Figure 5 This is an exploded view of the shock absorption components.

[0049] Legend: Prefabricated composite beam slab 100; base 11; bottom plate 12; slide groove 121; strip-shaped hollow hole 122; caster wheel 13; slider A14; protruding column 141; cylinder A15; bearing plate A21; bearing plate B22; transverse slide rail 221; longitudinal slide rail 222; buffer sleeve 31; T-shaped column 32; pusher plate 33; spring 34; base 41; stop block 42; transverse slider 421; positioning recess 422; telescopic rod 431; positioning plate 44; longitudinal slider 441. Detailed Implementation

[0050] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] The following describes the embodiments and appendices. Figure 1-5 The present invention will be further described below.

[0053] Example 1:

[0054] like Figure 1-5 As shown, the prefabricated composite beam slab installation auxiliary device is used to support and fix the prefabricated composite beam slab 100. The prefabricated composite beam slab 100 is rectangular, and its four side elevations include two oppositely arranged end faces and two oppositely arranged side faces.

[0055] The prefabricated composite beam and slab installation auxiliary device includes a base assembly, a shock absorption assembly, a load-bearing assembly, and a locking mechanism connected sequentially from bottom to top.

[0056] The base assembly includes a base 11, a base plate 12, casters 13, a slider A14, and a cylinder A15. The base 11 has an internal receiving cavity, and its lower end has an opening connecting to this cavity. The base plate 12 is slidably mounted within the receiving cavity of the base 11, with its thickness edge slidingly engaging with the cavity wall. The base plate 12 has a groove 121 extending through to this thickness edge. An even number of casters 13 are axially symmetrically mounted on the lower surface of the base plate 12. The slider A14 is slidably mounted within the groove 121 and is in either a retracted or extended state. In the retracted state, the slider A14 is entirely within the groove 121; in the extended state, a portion of the slider A14 protrudes outside the base plate 12. Cylinder A15 is installed in the receiving cavity. The cylinder body of cylinder A15 is fixedly connected to the top surface of the receiving cavity. The telescopic rod of cylinder A15 is hinged to the upper surface of the base plate 12. The telescopic movement of cylinder A15 causes the base plate 12 to move up and down within the receiving cavity. When the telescopic rod of cylinder A15 is retracted to its shortest length, the caster wheel 13 is located in the receiving cavity, and the annular surface at the lower end of the base 11 is in contact with the ground to bear weight. When the telescopic rod of cylinder A15 is extended to its longest length, the caster wheel 13 is exposed outside the lower end of the receiving cavity, and the caster wheel 13 is in contact with the ground to bear weight.

[0057] The load-bearing assembly includes a load-bearing plate A21 and a load-bearing plate B22. Load-bearing plate B22 is fixedly installed at the center of the upper end of load-bearing plate A21. Load-bearing plate B22 has two perpendicularly arranged transverse slide rails 221 and two longitudinal slide rails 222, with the two transverse slide rails 221 and the two longitudinal slide rails 222 arranged opposite each other. Load-bearing plate A21 is used to connect the damping assembly at its lower end, and both load-bearing plates A21 and B22 are used together at their upper ends to install the locking mechanism. The center of the upper surface of load-bearing plate B22 is the placement surface for the prefabricated composite beam slab.

[0058] Multiple damping components are arranged in a rectangular array between the base 11 and the support plate A21. The damping components include a buffer sleeve 31, a T-shaped column 32, a liquid-push plate 33, and a spring 34. The buffer sleeve 31 is a container with an opening at the top and an internal cavity containing damping fluid. The lower end of the buffer sleeve 31 is welded to the upper surface of the base 11. The T-shaped column 32 includes a large column section and a small column section connected in sequence. The large column section is welded to the lower surface of the support plate A21, and the small column section extends into the cavity of the buffer sleeve 31 through the opening at the top. The liquid-push plate 33 is fixedly connected to the end of the small column section and located in the cavity of the buffer sleeve 31. The cross-section of the liquid-push plate 33 is adapted to the cavity of the buffer sleeve 31 to isolate the cavity. Spring 34 is sleeved on the outside of buffer sleeve 31 and T-shaped column 32. Its upper end is welded to the lower surface of bearing plate A21, and its lower end is welded to the upper surface of base 11.

[0059] The locking mechanism is installed on the upper ends of the bearing plates A21 and B22, and includes abutment components for abutting the two end faces of the prefabricated composite beam slab 100 and positioning components for positioning the two sides of the prefabricated composite beam slab 100. The abutment components include bases 41, cylinders B (not shown in the figure), and abutment blocks 42. The two bases 41 are respectively fixedly installed on the upper sides of the bearing plate A21 and arranged opposite to each other. Two sets of cylinders B (two in one set, one set inside each base 41) are respectively embedded in the two bases 41. The telescopic rods 431 of the two sets of cylinders B extend horizontally and are arranged facing each other. A horizontal slider 421 is fixedly connected to the lower end of the abutment block 42. The two abutment blocks 42 are slidably connected to two horizontal slide rails 221 via the horizontal slider 421. One side wall of the abutment block 42 faces the telescopic rod 431 of the adjacent cylinder B, and the other side wall of the abutment block 42 faces the end face of the adjacent prefabricated composite beam 100. The two abutment blocks 42 together clamp the prefabricated composite beam 100 in the middle. The abutment blocks 42 move along the horizontal slide rails 221 under the push of the telescopic rod 431 of the cylinder B to abut or disengage from the end face of the prefabricated composite beam 100. The positioning assembly includes a positioning plate 44. The lower end of the positioning plate 44 is fixedly connected to a longitudinal slider 441. The two positioning plates 44 are slidably connected to the two longitudinal slide rails 222 by the longitudinal sliders 441 at their respective lower ends. One side wall of the positioning plate 44 faces the side of the adjacent prefabricated composite beam 100. The two positioning plates 44 together sandwich the prefabricated composite beam 100 in the middle.

[0060] Preferably, the lower surface of the base plate 12 is provided with a strip-shaped perforated hole 122 that communicates with the slide groove 121 and extends in the same direction as the slide groove 121. Correspondingly, a protruding post 141 is fixedly connected to the lower end of the slider A14, and the protruding post 141 extends out of the strip-shaped perforated hole 122 at the lower end of the base plate 12. When the slider A14 moves in the slide groove 121, the protruding post 141 moves along the strip-shaped perforated hole 122.

[0061] Preferably, the abutment block 42 has a positioning recess 422 on the side wall facing the cylinder B, which is opposite to the telescopic rod 431 of the cylinder B and into which the telescopic rod 431 of the cylinder B extends. When the telescopic rod 431 of the cylinder B is inserted into the positioning recess 422, the extension and retraction of the telescopic rod 431 of the cylinder B will drive the abutment block 42 to reciprocate synchronously along the transverse slide rail 221.

[0062] Preferably, the sliding resistance between the longitudinal slider 441 and the longitudinal slide rail 222 is greater than 50N, so that a certain external force is required to move the longitudinal slider 441, and when the applied external force is removed, the longitudinal slider 441 stops immediately and remains in a fixed position due to the sliding resistance. The sliding resistance between the transverse slider 421 and the transverse slide rail 221 is less than 10N, so that the thrust applied by the cylinder B can easily move the stop block 42.

[0063] Preferably, the number of casters 13 is 4, 6, or 8.

[0064] The aforementioned installation auxiliary device is suitable for the transfer of prefabricated composite beams, for example, transferring prefabricated composite beams from the location of the transport vehicle to the location of the lifting device at the construction site.

[0065] This utility model can be used according to the following steps:

[0066] 1. Assuming the caster wheel 13 extends from the lower end of the base 11, the caster wheel 13 must first be retracted into the receiving cavity of the base 11 to facilitate the fixed-point loading of the prefabricated composite beam plate. The specific operation is as follows: first, supply air to the cylinder A15 and maintain pressure, then push all the sliders A14 back into the slide groove 121. At this time, the cylinder A15 is temporarily under pressure. Then, control the extension rod of the cylinder A15 to retract, thereby driving the base plate 12 and the caster wheel 13 to retract into the receiving cavity of the base 11 until the annular surface at the lower end of the base 11 contacts the ground, thus achieving the fixed-point fixing of the installation auxiliary device.

[0067] 2. Transfer the prefabricated composite beam slab to the placement surface of the installation auxiliary device (i.e., the center of the upper surface of the bearing plate B22). Ensure that the two end faces of the prefabricated composite beam slab 100 are respectively aligned with the two abutment blocks 42, and the two side faces of the prefabricated composite beam slab 100 are respectively aligned with the two positioning plates 44. Then, control the extension rods 421 of the two sets of cylinders B to extend, pushing the two abutment blocks 42 to move along the corresponding transverse slide rails 221 to abut against the two end faces of the prefabricated composite beam slab 100. Finally, push the two positioning plates 44 to move along the two longitudinal slide rails 222 to fit against the two side faces of the prefabricated composite beam slab 100, thus fixing the prefabricated composite beam slab.

[0068] 3. After the prefabricated composite beam slab is fixed, the caster wheel 13 is extended to the lower end of the base 11 to facilitate the transfer of the prefabricated composite beam slab 100. The specific operation is as follows: the piston rod of the cylinder A15 is extended, which in turn drives the base plate 12 and the caster wheel 13 to extend to the lower end of the base 11. When the height of the slide groove 121 is slightly lower than the lower end face of the base 11, all the sliders A14 are moved to the extended state, and then the cylinder A15 is depressurized. The base 11 then falls on the section of the slider A14 located outside the slide groove 121 (referred to as the extended section of the slider A14). At this time, the cylinder A15 is no longer under pressure.

[0069] 4. After pushing the installation auxiliary device to the target position, repeat step 1 above to retract the caster wheel 13 into the receiving cavity of the base 11, so as to facilitate the fixed-point unloading of the prefabricated composite beam plate.

[0070] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0071] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. An assembled composite beam-slab installation auxiliary device for carrying and fixing an assembled composite beam-slab; the assembled composite beam-slab is in the shape of a cuboid, and four side vertical surfaces thereof include two oppositely arranged end surfaces and two oppositely arranged side surfaces. characterized in that The assembled composite beam-slab installation auxiliary device comprises, from bottom to top, a base assembly, a damping assembly, a carrying assembly and a locking mechanism. The lower end of the base assembly is provided with universal wheels. The upper end of the carrying assembly is provided with a placement surface for placing the assembled composite beam-slab. The plurality of damping assemblies are distributed in a rectangular array between the base assembly and the carrying assembly. The locking mechanism is installed on the upper end of the carrying assembly and is used for resisting and positioning the assembled composite beam-slab.

2. The assembled composite beam-slab installation auxiliary device according to claim 1, characterized in that: The base assembly comprises a base, a bottom plate, universal wheels, a sliding block A and a cylinder A. The base is internally provided with a receiving cavity, and the lower end thereof is provided with an opening communicating with the receiving cavity. The bottom plate is slidingly installed in the receiving cavity, the thickness edge of the bottom plate is slidingly fitted with the wall surface of the receiving cavity, and the inside of the bottom plate is provided with a sliding groove penetrating through the thickness edge of the bottom plate. The universal wheels are installed on the lower surface of the bottom plate and are axially symmetrically installed in pairs. The sliding block A is slidingly installed in the sliding groove and is in a retracted or extended state, in the retracted state, the sliding block A is located in the sliding groove as a whole, and in the extended state, the sliding block A is partially extended outside the bottom plate. The cylinder A is installed in the receiving cavity, the cylinder body is fixedly connected with the top surface of the receiving cavity, the telescopic rod is hingedly connected with the upper surface of the bottom plate, the bottom plate is lifted and moved in the receiving cavity through the telescopic rod, when the telescopic rod is retracted to the shortest, the universal wheels are located in the receiving cavity, at this time, the annular surface at the opening of the lower end of the base is in contact with the ground to bear the weight, when the telescopic rod is extended to the longest, the universal wheels are exposed outside the lower end of the receiving cavity, at this time, the universal wheels are in contact with the ground to bear the weight.

3. The assembled composite beam-slab installation auxiliary device according to claim 2, characterized in that: The lower surface of the bottom plate is provided with a strip-shaped hollow hole communicating with the sliding groove and extending in the same direction as the sliding groove. The lower end of the sliding block A is fixedly connected with a protruding column, the protruding column is extended out of the lower end of the bottom plate from the strip-shaped hollow hole, and when the sliding block A moves in the sliding groove, the protruding column moves along the strip-shaped hollow hole.

4. The assembled composite beam-slab installation auxiliary device according to claim 3, characterized in that: The carrying assembly comprises a carrying plate A and a carrying plate B, the carrying plate B is fixedly installed at the upper end center of the carrying plate A, the size of the carrying plate B is smaller than that of the carrying plate A, the carrying plate B is fixedly installed with a transverse sliding rail and a longitudinal sliding rail arranged perpendicularly to each other, the number of the transverse sliding rail and the longitudinal sliding rail is both two, the two transverse sliding rails are oppositely arranged, and the two longitudinal sliding rails are oppositely arranged; The lower end of the carrying plate A is used for connecting the damping assembly, and the upper ends of the carrying plate A and the carrying plate B are used for installing the locking mechanism. The upper surface center of the carrying plate B is the placement surface.

5. The prefabricated composite beam-slab mounting auxiliary device according to claim 4, characterized in that: the locking mechanism comprises a resisting assembly and a positioning assembly; the resisting assembly comprises a base, a gas cylinder B and a resisting block; two bases are respectively fixedly installed on the two sides of the upper end of the bearing plate A and oppositely arranged; two groups of gas cylinders B are respectively embeddedly installed inside the two bases, and the telescopic rods of the two groups of gas cylinders B are horizontally and oppositely arranged; the lower end of the resisting block is fixedly connected with a transverse sliding block, and the two resisting blocks are respectively slidably connected on the two transverse sliding rails through the transverse sliding blocks, one side wall of the resisting block is opposite to the telescopic rod of the gas cylinder B adjacent thereto, and the other side wall of the resisting block is opposite to the end face of the prefabricated composite beam-slab adjacent thereto, and the two resisting blocks jointly clamp the prefabricated composite beam-slab; the resisting block moves along the transverse sliding rail under the pushing of the telescopic rod of the gas cylinder B to abut against or depart from the end face of the prefabricated composite beam-slab; the positioning assembly comprises a positioning plate; the lower end of the positioning plate is fixedly connected with a longitudinal sliding block, and the two positioning plates are slidably connected on the two longitudinal sliding rails through the longitudinal sliding blocks at the lower ends thereof, one side wall of the positioning plate is opposite to the side face of the prefabricated composite beam-slab adjacent thereto, and the two positioning plates jointly clamp the prefabricated composite beam-slab.

6. The prefabricated composite beam-slab mounting auxiliary device according to claim 5, characterized in that: the resisting block is provided with a positioning recess on one side wall thereof facing the gas cylinder B, the positioning recess is opposite to the telescopic rod of the gas cylinder B and is for the telescopic rod of the gas cylinder B to extend into, and when the telescopic rod of the gas cylinder B is inserted into the positioning recess, the telescopic rod of the gas cylinder B is telescoped to drive the resisting block to synchronously and reciprocally move along the transverse sliding rail.

7. The prefabricated composite beam-slab mounting auxiliary device according to claim 6, characterized in that: the sliding resistance between the longitudinal sliding block and the longitudinal sliding rail is greater than 50 N, and the sliding resistance between the transverse sliding block and the transverse sliding rail is less than 10 N.

8. The prefabricated composite beam-slab mounting auxiliary device according to claim 7, characterized in that: a plurality of groups of damping assemblies are distributed between the base and the bearing plate A in a rectangular array pattern; the damping assembly comprises a buffer sleeve, a T-shaped column, a liquid pushing plate and a spring; the buffer sleeve is a container with a cavity in the inside of the upper end opening, the cavity contains buffer damping liquid, the lower end of the buffer sleeve is welded on the upper surface of the base, the T-shaped column comprises a large column segment and a small column segment which are connected in sequence, the large column segment is fixedly connected on the lower surface of the bearing plate A, and the small column segment extends into the cavity of the buffer sleeve through the upper end opening of the buffer sleeve; the liquid pushing plate is fixedly connected on the end of the small column segment and located in the cavity of the buffer sleeve, and the liquid pushing plate is adapted to the cross section of the cavity of the buffer sleeve to separate the cavity; the spring is sleeved outside the buffer sleeve and the T-shaped column, the upper end thereof is fixedly connected with the lower surface of the bearing plate A, and the lower end thereof is fixedly connected with the upper surface of the base.

9. The prefabricated composite beam-slab installation auxiliary device according to claim 8, characterized in that: The number of universal wheels is 4 or 6 or 8.

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