An overground structure connecting device for a subway

Abstract

This invention discloses a connection device for subway superstructures, comprising a vehicle body, a vertical plate fixedly connected to the upper side of the vehicle body, a horizontal plate fixedly connected to the upper side of the vertical plate, a lifting cylinder fixedly connected to the horizontal plate, a lifting platform rotatably connected to the lower end of the telescopic rod of the lifting cylinder, the lifting platform having an avoidance hole, a breaking rod at the bottom of the lifting platform, and an adsorption pad at the bottom of the lifting platform. The adsorption pad has a bladder-like structure with evenly distributed air inlets at the bottom. The vehicle body is equipped with an air pump, and a suction hose is fixedly connected between the air pump and the adsorption pad. This invention uses crushed stone adsorbed at the bottom of the adsorption pad. After the concrete surface layer is fully broken, the lifting cylinder raises the lifting platform, and concrete is poured around the pre-reserved reinforcing bars. During the lifting process, the crushed stone, through controlled suction, falls and mixes into the poured concrete, reducing the amount of cleaning work.

Description

Technical Field

[0001] This invention relates to the field of superstructure construction technology, and in particular to a connection device for subway superstructures. Background Technology

[0002] Subway superstructure developments are centered around a subway line, with supporting facilities built on top for multi-level development including commercial, office, and residential uses. They promote urban development by prioritizing rail transit and provide supporting services to the city around the subway. The construction method for subway parking garage superstructures, as described in patent announcement number CN111648628B, requires chiseling around the main reinforcement bars of the frame columns of the planned superstructure. The resulting debris needs to be removed using hooks and rakes and then transported, resulting in a large workload. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a connection device for subway superstructures, thereby solving the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A connection device for a subway overpass structure includes a car body, a vertical plate fixedly connected to the upper side of the car body, a horizontal plate fixedly connected to the upper side of the vertical plate, a lifting cylinder fixedly connected to the horizontal plate, a lifting plate rotatably connected to the lower end of the telescopic rod of the lifting cylinder, the lifting plate having an avoidance hole, a breaking rod at the bottom of the lifting plate, an adsorption pad at the bottom of the lifting plate, the adsorption pad having a bladder-like structure and air inlets evenly distributed at the bottom, an air pump on the car body, and an air suction hose fixedly connected between the air pump and the adsorption pad.

[0006] Preferably, the bottom of the horizontal plate is provided with a guide sleeve, the guide sleeve is coaxial with the telescopic rod of the lifting cylinder, the guide sleeve is slidably connected to at least two horizontal rods, multiple horizontal rods are fixedly connected as a whole and slidably connected to the guide sleeve, the vertical plate is fixedly connected to the first cylinder, the lower end of the telescopic rod of the first cylinder is fixedly connected to one of the horizontal rods, the bottom of each horizontal rod is fixedly connected to a hanging rod, and the lower ends of the hanging rods are jointly fixedly connected to the cylindrical template.

[0007] Preferably, the cylindrical template includes two half-cylinders, each half-cylinder is fixedly connected to a side plate, and the side plates of the two half-cylinders are fixedly connected by bolts.

[0008] Preferably, the bottom of the cylindrical template is provided with an annular groove, a slider is slidably connected in the annular groove, a guide rod is fixedly connected to the bottom of the slider, a sleeve is slidably connected to the lower end of the guide rod, a buffer spring is fixedly connected between the sleeve and the guide rod, a drive motor is fixedly connected to one side of the sleeve, a traveling wheel is fixedly connected to the main shaft of the drive motor, and a mounting bracket is fixedly connected to one side of the slider. The mounting bracket is used to fixally connect a grooving knife or a paint brush.

[0009] Preferably, the lower end of the telescopic rod of the lifting cylinder is fixedly connected to a support plate, the support plate is fixedly connected to an adjusting motor, the main shaft of the adjusting motor is fixedly connected to a first gear, and a gear ring is fixedly connected to the upper side of the lifting plate, with the gear ring meshing with the first gear.

[0010] Preferably, the upper side of the hanging plate is provided with a guide groove, the lower end of the guide sleeve is unidirectionally hinged to a limiting plate corresponding to the guide groove and is provided with a rotary torsion spring, the bottom of the limiting plate is fixedly connected to an inclined block, a sliding block is slidably connected in the guide groove, the sliding block slidably covers the air inlet, a first spring is fixedly connected to the inner wall of one end of the sliding block and the upper side of the sliding block is fixedly connected to a cover plate, a support rod is provided on the upper side of the cover plate, the upper end of the support rod is rotatably connected to a roller, and the roller is set corresponding to the limiting plate.

[0011] Preferably, the guide groove is in the shape of a straight line, an arc, or an "S" bend. The bottom of the support rod is fixedly connected to a horizontal plate. The bottom of the horizontal plate is provided with a sliding groove. A floating block is slidably connected in the sliding groove. A second spring is fixedly connected between the floating block and the end wall of the sliding groove. The cover plate on the upper side of the sliding block is fixedly connected to a round shaft. The round shaft is rotatably connected to the floating block.

[0012] The advantages of this invention are as follows: The subway superstructure connection device provided by this invention cuts annular grooves around the reserved reinforcing bars, applies waterproof material to the annular grooves for waterproofing, moves the car body to move the lifting platform above the reserved reinforcing bars so that the reinforcing bars correspond to the avoidance holes, and the lifting cylinder pushes the lifting platform down. The crushing rods set at intervals on the lifting platform smash and roughen the concrete surface around the reinforcing bars. The detached fragments are squeezed by the deformation of the adsorption pad, and the air pump draws air to make the air inlet hole have adsorption force. The crushed stones are adsorbed at the bottom of the adsorption pad. After the concrete surface is fully crushed, the lifting cylinder raises the lifting platform and pours concrete around the reserved reinforcing bars. During the process of the lifting platform rising, the crushed stones fall into the poured concrete by controlling the suction action. Only the powder and dust generated by crushing need to be blown out, the cleaning workload is low, and the rough surface of the old concrete surface is bonded, thus ensuring the bonding strength.

[0013] This invention utilizes a lifting cylinder to lower the suspended platform. A limiting plate rotates and clears the way. After the rollers leave the limiting plate, it returns to a horizontal position. When the suspended platform, carrying some gravel, rises, the rollers press against the inclined blocks at the bottom of the limiting plate. Guided by the inclined surfaces of these blocks, the rollers and support rods, along with sliding blocks, move laterally on the suspended platform. As the sliding blocks change position, they block different air inlets. With the corresponding air inlets blocked, the gravel below falls into the new concrete. By adjusting the guide groove positions and the distribution of air inlets, in conjunction with the lifting or lowering of the suspended platform, different sliding blocks block different air inlets. The suspended platform absorbs and carries the gravel, which falls into the new concrete at different depths, ensuring thorough dispersion of the gravel. A small amount of gravel will not adversely affect the strength of the newly poured frame columns. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the basic structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the half-cylinder and the hanging plate of the present invention;

[0016] Figure 3 yes Figure 2 Enlarged view of section E in the image;

[0017] Figure 4 This is a half-sectional structural diagram of the lifting platform of the present invention.

[0018] Figure 5 yes Figure 4 Enlarged view of section F in the image;

[0019] Figure 6 This is a schematic diagram of the working state of the present invention. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] Example 1

[0022] like Figure 1-6 As shown, the present invention provides a connection device for a subway overpass structure, including a car body 1, a vertical plate 11 fixedly connected to the upper side of the car body 1, a horizontal plate 12 fixedly connected to the upper side of the vertical plate 11, a lifting cylinder 13 fixedly connected to the horizontal plate 12, a hanging plate 14 rotatably connected to the lower end of the telescopic rod of the lifting cylinder 13, the hanging plate 14 is provided with an avoidance hole 15, a breaking rod 16 is provided at the bottom of the hanging plate 14, an adsorption pad 17 is provided at the bottom of the hanging plate 14, the adsorption pad 17 is made of rubber, the adsorption pad 17 has a bladder-like structure and air inlets 18 are evenly arranged at the bottom, the upper side of the adsorption pad 17 is open and embedded in the bottom of the hanging plate 14, the car body 1 is provided with an air pump, and an air suction hose 19 is fixedly connected between the air pump and the adsorption pad 17.

[0023] This invention involves cutting an annular groove 10 around a pre-reserved reinforcing bar, applying a waterproof material to the groove 10 for waterproofing, moving the vehicle body 1 to a platform 14 above the pre-reserved reinforcing bar with the reinforcing bar aligned with the clearance hole 15, and lowering the platform 14 using a lifting cylinder 13. The platform 14 is then equipped with spaced-out crushing rods 16 to break and roughen the concrete surface around the reinforcing bar. The detached fragments are compressed by the deformation of the adsorption pad 17, and an air pump draws air to create an adsorption force in the air inlet 18, causing the crushed stone to adhere to the bottom of the adsorption pad 17. After the concrete surface is sufficiently broken, the lifting cylinder 13 raises the platform 14, and concrete is poured around the pre-reserved reinforcing bar. As the platform 14 rises, the crushed stone is drawn into the poured concrete by controlled suction. Only the powder and dust generated during the crushing need to be blown out, resulting in low cleaning workload and ensuring the bonding strength of the roughened old concrete surface.

[0024] The bottom of the horizontal plate 12 is provided with a guide sleeve 2, which is coaxial with the telescopic rod of the lifting cylinder 13. The guide sleeve 2 is slidably connected to at least two horizontal rods 21. Multiple horizontal rods 21 are fixedly connected as a whole and slidably connected to the guide sleeve 2. The vertical plate 11 is fixedly connected to the first cylinder 22. The lower end of the telescopic rod of the first cylinder 22 is fixedly connected to one of the horizontal rods 21. The bottom of each horizontal rod 21 is fixedly connected to a hanging rod 23. The lower ends of the hanging rods 23 are jointly fixedly connected to the cylindrical template 3. The cylindrical template 3 includes two half-cylinders 31. Each half-cylinder 31 is fixedly connected to a side plate 32. The side plates 32 of the two half-cylinders 31 are fixedly connected by bolts for easy demolding.

[0025] In this embodiment, the lifting and lowering of the first hydraulic cylinder 22 is used to control the lifting and lowering of the cylindrical template 3. The cylindrical template 3 is fitted onto the reserved reinforcing bars, which facilitates the pouring of concrete in the middle of the reinforcing bars. The poured concrete and the roughened old concrete surface are combined with the lifting plate 14 to lift the gravel and drop it into the concrete, reducing the amount of old concrete gravel waste generated. The newly poured frame column is embedded in the old concrete. Although some gravel is mixed into the new concrete, it can reduce the amount of cleaning. Since the proportion of the mixed gravel is very small relative to the new concrete, it is suitable for low-rise buildings with a floor height of no more than 3 stories, so it will not affect the strength of the frame column.

[0026] Example 2

[0027] like Figure 1-6 As shown, the bottom of the cylindrical template 3 is provided with an annular groove 34, and a slider 35 is slidably connected in the annular groove 34. A guide rod 36 is fixedly connected to the bottom of the slider 35, and a sleeve 37 is slidably connected to the lower end of the guide rod 36. A buffer spring 38 is fixedly connected between the sleeve 37 and the guide rod 36. A drive motor 39 is fixedly connected to one side of the sleeve 37, and a traveling wheel 391 is fixedly connected to the main shaft of the drive motor 39. A mounting bracket 392 is fixedly connected to one side of the slider 35. The mounting bracket 392 is used to fix a grooving knife 393 or a paint brush.

[0028] In this embodiment, the height of the cylindrical template 3 is controlled by the first hydraulic cylinder 22, the slider 35 is placed into the annular groove 34, and then the cylindrical template 3 drops a height so that the buffer spring 38 is compressed. At this time, the rubber tire wheel 391 is driven by the drive motor 39 to form along the guide of the annular groove 34. The grooving knife 393 is used to cut grooves on the old concrete surface or to provide a paint brush to apply waterproof material.

[0029] After construction is completed, the slider 35 and the auxiliary parts below can be easily removed, making it easy for the bottom of the cylindrical formwork 3 to contact the old concrete surface to form a seal, and making it easy to pour flowing concrete into the cylindrical formwork 3. The upper end of the cylindrical formwork 3 is equipped with a flange, which can be added one by one to make it easier to pour frame columns of appropriate height.

[0030] Example 3

[0031] like Figure 1-6 As shown, the lower end of the telescopic rod of the lifting cylinder 13 is fixedly connected to the support plate 4, the support plate 4 is fixedly connected to the adjusting motor 41, the main shaft of the adjusting motor 41 is fixedly connected to the first gear 42, and the upper side of the hanging plate 14 is fixedly connected to the gear ring 43, which meshes with the first gear 42. The adjusting motor 41 drives the gear ring 43 to rotate at a certain angle through the first gear 42 and then rotates back. Within the range of the avoidance hole 15 that avoids the reinforcing bars, the position of the crushing rod 16 is changed by the rotation of the hanging plate 14, so as to facilitate the crushing of the old concrete surface and fully crush the gravel generated on the old concrete surface to a suitable size for adsorption. Individual gravel with special shapes that are not easy to adsorb is removed during manual cleaning.

[0032] Example 4

[0033] like Figure 1-6 As shown, the upper side of the hanging plate 14 is provided with a guide groove 141. The lower end of the guide sleeve 2 is unidirectionally hinged to the limiting plate 5 corresponding to the guide groove 141 and is provided with a rotary torsion spring. The rotary torsion spring keeps the limiting plate 5 horizontal. That is, a hinge groove is provided at the bottom of one end of the limiting plate 5. The hinge rod 511 extends into the hinge groove. When the limiting plate 5 rotates upward, it is limited by the upper wall of the hinge groove. When the limiting plate 5 rotates downward, it can rotate unidirectionally because the bottom of the hinge groove is open. The bottom of the limiting plate 5 is fixedly connected to the inclined block 51. The sliding block 52 is slidably connected in the guide groove 141. The sliding block 52 slidably covers the air inlet 18. The sliding block 52 is fixedly connected to the inner wall of one end of the guide groove 141 with a first spring 53, which plays the role of pushing the sliding block 52 to reset. The upper side of the sliding block 52 is fixedly connected to the cover plate 54. The upper side of the cover plate 54 is provided with a support rod 55. The upper end of the support rod 55 is rotatably connected to a roller 56. The roller 56 is set corresponding to the limiting plate 5.

[0034] In this embodiment, when the lifting cylinder 13 drives the suspended platform 14 to descend, the limiting plate 5 rotates and moves aside. After the roller 56 leaves the limiting plate 5, the limiting plate 5 returns to a horizontal state. When the suspended platform 14 carries some gravel upwards, the roller 56 presses against the inclined block 51 at the bottom of the limiting plate 5. Guided by the inclined surface of the inclined block 51, the roller 56 and the support rod 55 move laterally on the suspended platform 14 along with the sliding block 52. During the change of position of the sliding block 52, different... When the air inlet 18 is blocked, the gravel below will fall into the new concrete due to its own weight. By setting the position of the guide groove 141 and the distribution of the air inlets 18, and by raising or lowering the hanging plate 14, different sliding blocks 52 can block the air inlets 18 at different positions. The hanging plate 14 can absorb the gravel and let it fall into the new concrete at different depths in stages, so that the gravel is fully dispersed and a small amount of gravel will not have an adverse effect on the strength of the newly poured frame column.

[0035] Example 5

[0036] like Figure 1-6 As shown, the guide groove 141 is in the shape of a straight line, an arc, or an "S" bend. The bottom of the support rod 55 is fixedly connected to the horizontal plate 57. The bottom of the horizontal plate 57 is provided with a sliding groove. The floating block 59 is slidably connected in the sliding groove. The second spring 591 is fixedly connected between the floating block 59 and the end wall of the sliding groove. The cover plate 54 on the upper side of the sliding block 52 is fixedly connected to the round shaft 592. The round shaft 592 is rotatably connected to the floating block 59.

[0037] In this embodiment, the roller 56 contacts the inclined block 51, causing the roller 56 and the support rod 55 to move the sliding block 52 outward on the hanging plate 14. As the support rod 55 pushes the sliding block 52 outward, the guide groove 141 is straight, arc-shaped, or "S"-shaped. In order to follow the trend of the guide groove 141, the floating block 59 automatically adapts to the position at the bottom of the transverse plate 57. This causes the air inlet 18 covered by the sliding block 52 to change its position relative to the hanging plate 14, thereby enabling air to be drawn in through the partition. This allows the gravel located at different positions at the bottom of the hanging plate 14 to fall at different times, so that the gravel can be dispersed in different positions and at different depths in the poured concrete. This ensures that the gravel is kept far away and will not have a significant impact on the strength of the poured frame column.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connection device for a subway superstructure, comprising a car body (1), a vertical plate (11) fixedly connected to the upper side of the car body (1), a horizontal plate (12) fixedly connected to the upper side of the vertical plate (11), a lifting cylinder (13) fixedly connected to the horizontal plate (12), a lifting plate (14) rotatably connected to the lower end of the telescopic rod of the lifting cylinder (13), the lifting plate (14) being provided with an avoidance hole (15), and a breaking rod (16) being provided at the bottom of the lifting plate (14), characterized in that: The bottom of the hanging plate (14) is provided with an adsorption pad (17). The adsorption pad (17) has a bladder-like structure and air inlets (18) are evenly arranged at the bottom. The vehicle body (1) is provided with an air pump. An air suction hose (19) is fixedly connected between the air pump and the adsorption pad (17). The bottom of the horizontal plate (12) is provided with a guide sleeve (2), the guide sleeve (2) is coaxial with the telescopic rod of the lifting cylinder (13), the guide sleeve (2) is slidably connected to at least two horizontal bars (21), multiple horizontal bars (21) are fixedly connected as a whole and slidably connected to the guide sleeve (2), the vertical plate (11) is fixedly connected to the first cylinder (22), the lower end of the telescopic rod of the first cylinder (22) is fixedly connected to one of the horizontal bars (21), the bottom of each horizontal bar (21) is fixedly connected to a hanging rod (23), and the lower end of the hanging rod (23) is fixedly connected to the cylindrical template (3); The lower end of the telescopic rod of the lifting cylinder (13) is fixedly connected to the support plate (4), the support plate (4) is fixedly connected to the adjusting motor (41), the main shaft of the adjusting motor (41) is fixedly connected to the first gear (42), and the upper side of the hanging plate (14) is fixedly connected to the gear ring (43), which meshes with the first gear (42). The upper side of the hanging plate (14) is provided with a guide groove (141). The lower end of the guide sleeve (2) is connected to the limiting plate (5) in a one-way hinge corresponding to the guide groove (141) and is provided with a rotary torsion spring. The bottom of the limiting plate (5) is fixedly connected with an inclined block (51). The sliding block (52) is slidably connected in the guide groove (141). The sliding block (52) slidably covers the air inlet (18). The sliding block (52) is fixedly connected to the inner wall of one end of the guide groove (141) with a first spring (53). The upper side of the sliding block (52) is fixedly connected with a cover plate (54). The upper side of the cover plate (54) is provided with a support rod (55). The upper end of the support rod (55) is rotatably connected with a roller (56). The roller (56) is set corresponding to the limiting plate (5).

2. The connection device for a subway superstructure according to claim 1, characterized in that: The cylindrical template (3) includes two semi-cylinders (31), each semi-cylinder (31) is fixedly connected to a side plate (32), and the side plates (32) of the two semi-cylinders (31) are fixedly connected by bolts.

3. The connection device for a subway superstructure according to claim 1, characterized in that: The bottom of the cylindrical template (3) is provided with an annular groove (34), and a slider (35) is slidably connected in the annular groove (34). A guide rod (36) is fixedly connected to the bottom of the slider (35). A sleeve (37) is slidably connected to the lower end of the guide rod (36). A buffer spring (38) is fixedly connected between the sleeve (37) and the guide rod (36). A drive motor (39) is fixedly connected to one side of the sleeve (37). A walking wheel (391) is fixedly connected to the main shaft of the drive motor (39). A mounting bracket (392) is fixedly connected to one side of the slider (35). The mounting bracket (392) is used to fix a grooving knife (393) or a paint brush.

4. The connection device for a subway superstructure according to claim 1, characterized in that: The guide groove (141) is in the shape of a straight line, an arc or an "S" bend. The bottom of the support rod (55) is fixedly connected to a horizontal plate (57). The bottom of the horizontal plate (57) is provided with a sliding groove. A floating block (59) is slidably connected in the sliding groove. A second spring (591) is fixedly connected between the floating block (59) and the end wall of the sliding groove. The cover plate (54) on the upper side of the sliding block (52) is fixedly connected to a round shaft (592). The round shaft (592) is rotatably connected to the floating block (59).

Images