Subway foundation pit temporary road surface passing structure

Abstract

The utility model discloses a subway foundation pit temporary road surface passing structure which comprises a main plate. The opening and closing plates are arranged on the periphery of the main plate in an annular array mode, and the opening and closing plates are rotationally connected with the main plate through hinges; the lower part of the main plate is fixedly connected with the bearing column; the sliding rails are arranged between the opening and closing plates and the main plate around the bearing column in an annular array mode, the sliding rails correspond to the opening and closing plates one to one, and the sliding rails are located below the opening and closing plates and the main plate; the ends, away from the plywood, of the bearing columns are connected with the height adjusting devices in a sliding mode. And the plane expansion supporting device is connected below the main plate in a sliding manner. According to the supporting device, the height adjusting function is added, the supporting device can adapt to foundation pits with different depths, the supporting force is not affected through the structure in the adjusting process, a temporary road surface can be stably built no matter a shallow foundation pit or a deep foundation pit, and traffic safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to traffic engineering field, concretely is a subway foundation pit temporary road surface passing structure. BACKGROUND

[0002] In the subway construction process, many subway foundation pits are located below urban roads, and the existence of the temporary road surface passing structure makes the ground traffic not completely interrupted due to foundation pit construction, pedestrians can continue to pass normally, thereby maintaining the basic order of urban roads, reducing the influence on the surrounding area traffic, and guaranteeing smooth roads.

[0003] The ordinary temporary road surface passing structure is not flexible in height adjustment, and most daily devices are fixed height design, and cannot conveniently adjust the up-down height to adapt to different depth foundation pits. For example, a deeper foundation pit needs higher support to lay the road surface, and needs sufficient support force, which leads to the difficulty of building the temporary road surface at a suitable position, and affects normal passing.

[0004] For different size foundation pits, the conventional structure is usually fixed in size, when the foundation pit area is larger, cannot effectively expand to cover the entire foundation pit surface for passing, and it is difficult to change the shape to fit the foundation pit edge, so that the temporary road surface cannot be completely covered, and the passing range is limited. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a subway foundation pit temporary road surface passing structure to solve the problem of the ordinary temporary road surface passing structure in the background art, which is not flexible in height adjustment, and most daily devices are fixed height design, and cannot conveniently adjust the up-down height to adapt to different depth foundation pits. For example, a deeper foundation pit needs higher support to lay the road surface, and needs sufficient support force, which leads to the difficulty of building the temporary road surface at a suitable position, and affects normal passing. In order to achieve the above purpose, the utility model provides the following technical scheme: a subway foundation pit temporary road surface passing structure, comprising: a main plate; a hinged plate, the main plate is peripherally arranged in a ring array and provided with a hinged plate, the hinged plate is rotatably connected with the main plate through a hinge; a bearing column, the main plate is fixedly connected with a bearing column below; a slide rail, the hinged plate and the main plate are arranged in a ring array around the bearing column and provided with a slide rail, and the slide rail corresponds to the hinged plate one by one, and the slide rail is located below the hinged plate and the main plate; a height adjusting device, the bearing column is slidably connected with a height adjusting device at a position away from the hinged plate; a plane expansion support device, the main plate is slidably connected with a plane expansion support device below.

[0006] Preferably, the height adjusting device comprises a base, a cushion block and a standard cylinder, the bottom end of the base is above the ground, the top of the base is provided with a standard cylinder, the upper surface of the base and the standard cylinder is provided with a clamping groove, the top of the base is provided with a groove for fixing, the standard cylinder is provided with a cylinder hole matched therewith in a penetrating manner, the bottom end of the standard cylinder is provided with a clamping block, and the clamping block is clamped between the clamping grooves, and the cushion block is arranged in the cylinder hole of the standard cylinder and the base and is slidably connected with the cylinder hole and the groove.

[0007] Preferably, the planar expansion support device comprises a sliding block, a supporting rod and a second circular clasp, the sliding block is provided with a plurality of groups and is arranged in the sliding rail in a sliding manner, the bottom end of the sliding block is fixedly connected with an inner shaft of a first telescopic rod, the outer surface of the first telescopic rod is fixedly connected with a first circular clasp at the uppermost position, the surface of the first circular clasp is provided with a fixed plate, the fixed plate is divided into two parts, one end of the supporting rod is arranged between the two fixed plates and is rotatably connected with the end of the supporting rod close to the clasp through a pin shaft penetrating the fixed plate, the second circular clasp is slidably connected to the outer surface of the bearing column, the surface of the second circular clasp is provided with a plurality of groups of fixed plates, the other end of the supporting rod is arranged between the fixed plates in the second circular clasp and is rotatably connected with the end of the supporting rod close to the bearing column through a pin shaft penetrating the fixed plate.

[0008] Preferably, the surface of the bearing column is provided with clamping holes, the clamping holes are linearly arranged on the bearing column, the surface of the second circular clasp is provided with through holes with the same diameter as the clamping holes, the through holes penetrate the second circular clasp, and a plug shaft is arranged between the clamping holes and the through holes and clamped with the clamping holes and the through holes.

[0009] Preferably, the lower end of the bearing column is provided with a cylinder with a smaller outer diameter than the body, the outer diameter of the cylinder is the same as the inner diameter of the cylinder hole, and the cylinder is arranged in the cylinder hole.

[0010] Preferably, the outer surface of the first telescopic rod is fixedly connected with a second telescopic rod, and the other end of the second telescopic rod is fixedly connected to the outer surface of the bearing column.

[0011] Preferably, the bottom end of the first telescopic rod is provided with a roller.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. The support device has the height adjusting function, can adapt to different depth foundation pits, and guarantees the support force is not affected in the adjusting process, so that the temporary road can be stably built on the shallow foundation pit or the deep foundation pit, and the traffic safety is guaranteed.

[0014] 2. An expansion mechanism is installed that can change according to the size of the excavation pit. When encountering a relatively large excavation pit, the mechanism can change the expansion size to ensure that the temporary road surface can completely cover the excavation pit, so that the road surface structure can better adapt to excavation pits of different sizes and maintain normal traffic function. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural diagram of the present invention viewed from below;

[0017] Figure 3 This is an enlarged schematic diagram of the second circular retaining ring structure of this utility model;

[0018] Figure 4 This is a cross-sectional view of the height adjustment device of this utility model;

[0019] In the diagram: 1. Main board; 2. Opening plate; 3. Slide rail; 4. Support column; 5. Height adjustment device; 501. Base; 502. Pad; 503. Slot; 504. Standard cylinder; 505. Locking block; 506. Cylindrical hole; 6. First telescopic rod; 7. Roller; 8. Support rod; 9. Second telescopic rod; 10. Locking hole; 11. First circular retaining ring; 12. Fixing plate; 13. Pin; 14. Slider; 15. Second circular retaining ring; 16. Planar expansion support device; 17. Through hole; 18. Insert shaft; 19. Cylinder. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4The utility model provides a technical scheme: a subway foundation pit temporary road surface passing structure, include: mainboard 1, the mainboard 1 periphery is provided with open and close board 2 in ring array, open and close board 2 with mainboard 1 are connected through the hinge rotation, open and close board 2 are used to expand the area of mainboard 1, bearing column 4, the mainboard 1 below fixedly connected with bearing column 4, bearing column 4 is used to support the pressure of mainboard 1, slide rail 3, open and close board 2 with mainboard 1 are provided with slide rail 3 around bearing column 4 in ring array, and slide rail 3 with open and close board 2 correspond one to one, the slide rail 3 is located below open and close board 2 with mainboard 1, the slider 14 can realize the back and forth movement between mainboard 1 and open and close board 2 through slide rail 3, heightening device 5, the one end of bearing column 4 away from open and close board 2 is slidably connected with heightening device 5, is used to cope with different foundation pit depth, plane extension support device 16, the mainboard 1 below slidably connected with plane extension support device 16, and the different foundation pit surface size is coped with.

[0022] The heightening device 5 includes base 501, cushion block 502 and standard cylinder 504, the bottom end of base 501 contacts above the ground, base 501 is used for the balance device of novel and stable contact with the ground, the top of base 501 is provided with standard cylinder 504, the upper surface of base 501 and standard cylinder 504 is provided with clamping groove 503, the connection of standard cylinder 504 and base 501 and the connection of multiple standard cylinders 504 can be completed through clamping groove 503, the groove for fixing is set up on the top of base 501, standard cylinder 504 is provided with cylinder hole 506 matched with base 501 in the mode of penetrating, the cushion block 502 for adding height can be placed in the groove and cylinder hole 506, the bottom end of standard cylinder 504 is provided with clamping block 505, and clamping block 505 is clamped between clamping groove 503, the cushion block 502 is placed in the cylinder hole 506 of standard cylinder 504 and base 501, and the cushion block 502 is slidably connected between cylinder hole 506 and groove, if it is needed to continue to increase height, then the number of cushion block 502 needs to continue to increase, and standard cylinder 504 can continue to be clamped through the clamping block 505 of itself and the clamping groove 503 of top, so that the cushion block 502 can maintain good stability while increasing height, and the number of standard cylinder 504 and cushion block 502 is adjusted according to the height of foundation pit.

[0023] The planar expansion support device 16 comprises a plurality of sliding blocks 14 arranged in the slide rails 3 respectively, the sliding blocks 14 are in sliding connection with the slide rails 3, the bottom end of the sliding blocks 14 is fixedly connected with the inner shaft of the first telescopic rod 6, the first telescopic rod 6 needs to play a fixed support effect in the rear, and the height can be adjusted according to different foundation pit depths, at this moment, the inner shaft of the first telescopic rod 6 is fixedly connected with the sliding block 14, so as to stabilize half, the uppermost end of the outer surface of the first telescopic rod 6 is fixedly connected with the first circular clasp 11, the surface of the first circular clasp 11 is provided with a fixed plate 12, the fixed plate 12 is divided into two parts, the two fixed plates 12 can play a better stabilizing effect, one end of the supporting rod 8 is arranged between the two fixed plates 12, and the one end of the supporting rod 8 close to the first circular clasp 11 is rotatably connected with the fixed plate 12 through the pin shaft 13, the second circular clasp 15 is in sliding connection with the outer surface of the bearing column 4, a plurality of fixed plates 12 are arranged on the surface of the second circular clasp 15, the other end of the supporting rod 8 is arranged between the fixed plates 12 in the second circular clasp 15, the second circular clasp 15 can be connected with a plurality of supporting rods 8, and the other end of the supporting rod 8 close to the bearing column 4 is rotatably connected with the fixed plate 12 through the pin shaft 13, because the first circular clasp 11 is fixedly connected with the uppermost end of the outer surface of the first telescopic rod 6, therefore, when the second circular clasp 15 moves upward, the first telescopic rod 6 is affected by the force and expands outward through the sliding block 14 and the slide rail 3, until the second circular clasp 15 reaches the top end of the bearing column 4, and is attached to the lower surface of the main plate 1 and the opening and closing plate 2.

[0024] The surface of the bearing column 4 is provided with clamping holes 10, the clamping holes 10 are linearly arranged on the bearing column 4, the surface of the second circular clasp 15 is provided with through holes 17 with the same diameter as the clamping holes 10, so as to stably connect the holes with each other, the through holes 17 penetrate the second circular clasp 15, and the clamping holes 10 and the through holes 17 are provided with plug shafts 18, the plug shafts 18 are clamped with the clamping holes 10 and the through holes 17, when the second circular clasp 15 reaches the uppermost of the bearing column 4, the fixing is completed through the plug shafts 18 clamped between the through holes 17 and the clamping holes 10.

[0025] The lower end of the bearing column 4 is provided with a cylindrical body 19 with a smaller outer diameter than the body, the outer diameter of the cylindrical body 19 is the same as the inner diameter of the cylindrical hole 506, and the cylindrical body 19 is arranged in the cylindrical hole 506, after the height is adjusted, it is ensured that the standard cylinder 504 is higher than the height of the cushion block 502, and the bearing column 4 can be clamped into the cylindrical hole 506 of the standard cylinder 504 to form installation through the cylindrical body 19.

[0026] The outer shaft surface of the first telescopic rod 6 is fixedly connected with the second telescopic rod 9, and the other end of the second telescopic rod 9 is fixedly connected to the outer surface of the load-bearing column 4. With the support of the second telescopic rod 9, the first telescopic rod 6 will not continue to be telescopic, and will be fixed, so that pulling the first telescopic rod 6 can control the movement effect of the opening and closing plate 2.

[0027] The bottom end of the first telescopic rod 6 is provided with a roller 7, and the first telescopic rod 6 can be more conveniently moved through the roller 7.

[0028] Working principle: in use, first install the height adjusting device 5, place the base 501 at the bottom of the foundation pit, and connect the standard cylinder 504 with the clamping block 505 and the clamping groove 503, then place the cushion block 502 in the cylindrical hole 506 and the groove of the base 501 and the standard cylinder 504, if it is necessary to continue to increase the height, the number of cushion blocks 502 needs to be increased, and the standard cylinder 504 can be continuously stacked and clamped through the clamping block 505 at the top of the standard cylinder 504 and the clamping groove 503 at the top, so that the cushion block 502 can maintain good stability while increasing the height, and the number of standard cylinders 504 and cushion blocks 502 is adjusted according to the height of the foundation pit. After the height is adjusted, ensure that the height of the standard cylinder 504 is higher than that of the cushion block 502, and the load-bearing column 4 can be installed by being clamped into the cylindrical hole 506 of the standard cylinder 504 to form an installation, and the top of the load-bearing column 4 is fixedly connected with the main plate 1, and the main plate 1 at this time can be filled with the foundation pit to maintain normal traffic function. For the case of larger pit surface, the support rod 8 needs to be pushed upwards, one end of the support rod 8 is slidably connected with the load-bearing column 4 through the second circular clasp 15 and slides upwards, and the other end slides outward through the sliding block 14 and the sliding rail 3, at the same time, the first telescopic rod 6 fixedly connected with the sliding block 14 moves outward through the roller 7, and the first telescopic rod 6 can adjust its height according to different foundation pit depths until the sliding block 14 moves to the position below the opening and closing plate 2, at this moment, the opening and closing plate 2 is pushed by the sliding block 14, starts to rotate through the hinge connected with the main plate 1, until the sliding block 14 reaches the final end of the sliding rail 3, at this time, the second circular clasp 15 has reached the top of the load-bearing column 4, and is fixed by being clamped between the through hole 17 and the clamping hole 10 through the insertion shaft 18, and the support rod 8 is supported on the lower surface of the main plate 1 and the opening and closing plate 2, at this moment, the first telescopic rod 6 is below the opening and closing plate 2 through the movement of the sliding block 14 and the roller 7, the inner shaft of the first telescopic rod 6 is fixed to the sliding block 14, and the outer shaft of the first telescopic rod 6 is connected with the outer surface of the load-bearing column 4 through the second telescopic rod 9, so that after the second circular clasp 15 is fixed, the first telescopic rod 6 will not continue to be telescopic, and will be fixed, so that pulling the first telescopic rod 6 can control the movement effect of the opening and closing plate 2, at this moment, the opening and closing plate 2 has completed the stretching effect, expanded the area of the main plate 1, and realized the filling of the larger foundation pit surface.

[0029] It is to be understood that the terminology used herein such as first and second, and the like, is only used to distinguish one entity or action from another entity or action, and does not necessarily require or imply any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] While embodiments of the present application have been shown and described with reference to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. The scope of the application is thus indicated by the appended claims, along with the full scope of equivalents to which such claims are entitled.

Claims

1. A temporary road surface passing structure for a subway foundation pit, characterized by, Include: The main plate (1); Opening and closing board (2), the main plate (1) is arranged in a ring array outside the opening and closing board (2), which is rotatably connected between the main plate (1) and the opening and closing board (2); The load-bearing column (4) is fixedly connected below the main plate (1); The slide rail (3) is arranged in a ring array around the load-bearing column (4) between the opening and closing board (2) and the main plate (1), and the slide rail (3) corresponds to the opening and closing board (2), and the slide rail (3) is below the opening and closing board (2) and the main plate (1); The height adjusting device (5) is slidably connected to one end of the load-bearing column (4) away from the opening and closing board (2); The planar expansion support device (16) is slidably connected below the main plate (1).

2. The temporary road surface passing structure for a subway foundation pit according to claim 1, characterized in that: The height adjusting device (5) comprises a base (501), a cushion block (502) and a standard cylinder (504), the bottom end of the base (501) is above the ground, the top of the base (501) is provided with a standard cylinder (504), the upper surfaces of the base (501) and the standard cylinder (504) are provided with clamping grooves (503), the top of the base (501) is provided with a groove for fixing, the standard cylinder (504) is provided with a cylinder hole (506) matched with the base (501) in a penetrating manner, the bottom end of the standard cylinder (504) is provided with a clamping block (505), and the clamping block (505) is clamped between the clamping grooves (503), and the cushion block (502) is arranged in the cylinder hole (506) of the standard cylinder (504) and the base (501), and is slidably connected between the cushion block (502), the cylinder hole (506) and the groove.

3. The temporary road surface passing structure for subway foundation pit according to claim 1, characterized in that: The planar expansion support device (16) comprises a slide block (14), a supporting rod (8) and a second circular clasp (15), the slide block (14) has multiple groups and is arranged inside the slide rail (3), the slide block (14) is slidably connected with the slide rail (3), the bottom end of the slide block (14) is fixedly connected with the inner shaft of the first telescopic rod (6), the uppermost part of the outer surface of the first telescopic rod (6) is fixedly connected with the first circular clasp (11), the surface of the first circular clasp (11) is provided with a fixed plate (12), the fixed plate (12) is divided into two parts, one end of the supporting rod (8) is arranged between the two fixed plates (12), and the other end of the supporting rod (8) is rotatably connected with the fixed plate (12) through a pin shaft (13) penetrating the fixed plate (12) and the supporting rod (8) close to the first circular clasp (11), the second circular clasp (15) is slidably connected to the outer surface of the load-bearing column (4), the surface of the second circular clasp (15) is provided with multiple fixed plates (12), the other end of the supporting rod (8) is arranged between the fixed plates (12) in the second circular clasp (15), and the other end of the supporting rod (8) is rotatably connected with the fixed plate (12) through a pin shaft (13) penetrating the fixed plate (12) and the supporting rod (8) close to the load-bearing column (4).

4. The temporary road surface passing structure for a subway foundation pit according to claim 3, characterized in that: The surface of the load-bearing column (4) is provided with clamping holes (10), which are linearly arranged on the load-bearing column (4), the second circular clamping ring (15) is provided with through holes (17) with the same diameter as the clamping holes (10), the through holes (17) penetrate the second circular clamping ring (15), the clamping holes (10) and the through holes (17) are provided with plug shafts (18), and the plug shafts (18) are clamped with the clamping holes (10) and the through holes (17).

5. The temporary road surface passing structure for a subway foundation pit according to claim 4, characterized in that: The lower end of the load-bearing column (4) is provided with a cylinder (19) with a smaller outer diameter than the body, and the outer diameter of the cylinder (19) is the same as the inner diameter of the cylindrical hole (506), and the cylinder (19) is arranged in the cylindrical hole (506).

6. The temporary road surface passing structure for subway foundation pit according to claim 3, characterized in that: The outer shaft surface of the first telescopic rod (6) is fixedly connected with the second telescopic rod (9), and the other end of the second telescopic rod (9) is fixedly connected to the outer surface of the load-bearing column (4).

7. The temporary road surface passing structure for a subway foundation pit according to claim 6, characterized in that: The bottom end of the first telescopic rod (6) is provided with a roller (7).

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