Adjustable device for dismantling foundation pit supporting concrete support

Abstract

An adjustable device for dismantling a foundation pit supporting concrete support comprises an anti-overturning system, a lifting system, a supporting system and a cutting system. The anti-overturning system comprises a base, universal wheels and foot supports; the lifting system comprises a hydraulic transmission assembly and a lifting plate; the supporting system comprises a supporting plate, supporting columns and lateral supporting plates, the supporting plate is connected with the upper end of the lifting plate through the supporting columns, and the lateral supporting plates are installed on the two sides of the supporting plate; the cutting system comprises a rotating body, a motor driving device and a rope saw, the rotating body is connected with the motor driving device through an adjustable assembly, the rope saw is connected with the rotating body, and the rotating body drives the rope saw to be used for cutting the concrete supporting beam. The device is convenient to move, the height of the supporting plate is adjusted through the hydraulic transmission device to adapt to concrete supporting beams with different heights, the lateral supporting plate is fixed to the front side and the rear side of the concrete supporting beam by adjusting the limiting rod to prevent the lateral supporting plate from sliding laterally, and meanwhile the cutting system is arranged to achieve integrated operation of supporting and cutting.

Description

TECHNICAL FIELD

[0001] The utility model relates to underground construction technical field, concretely relates to a kind of adjustable device of foundation pit support concrete support dismantling, for the dismantling of foundation pit concrete support. BACKGROUND

[0002] Foundation pit support is an indispensable part of city subway, high-rise building and other large civil engineering, and its role is to ensure the stability of soil during foundation pit excavation, to prevent the destruction of surrounding buildings and underground facilities. During the process of foundation pit excavation, concrete support is a commonly used temporary support structure, which provides lateral force to resist soil pressure and water pressure, ensuring the stability of foundation pit. With the completion of foundation pit engineering, the construction of main structure, concrete support needs to be dismantled to facilitate subsequent construction. Traditional dismantling methods include direct crushing, blasting demolition, etc., but these methods have low efficiency, high noise, much dust, and great impact on the surrounding environment. With the development of technology, lossless static cutting technologies such as rope saw cutting are gradually adopted, and rope saw cutting has the advantages of high cutting efficiency, low noise, no vibration and no dust pollution, which is more in line with the environmental protection and safety requirements of modern construction.

[0003] When cutting concrete support beams with rope saw, it is necessary to use a bracket to support the concrete support beams to prevent the cut concrete blocks from falling and damaging the underground structure roof and its waterproof layer. Currently, the support work of concrete support beams is mainly achieved by using supports, and appropriate height supports need to be built according to the height of concrete support beams during construction, which is time-consuming and complicated. There are some support devices on the market, but most of these devices have single function and lack lifting and adjustable functions. SUMMARY

[0004] To overcome the shortcomings of the prior art, the utility model provides an adjustable device for dismantling concrete support of foundation pit support, which has lifting and adjustable functions, and ensures the cutting of concrete blocks of different sizes under various working conditions.

[0005] To solve the above problems, the utility model adopts the following technical solutions:

[0006] An adjustable device for dismantling concrete support of foundation pit support, comprising an anti-overturning system, a lifting system, a support system and a cutting system.

[0007] The anti-overturning system comprises a base, universal wheels and a foot prop, the base is connected with the foot prop through horizontal support rods and vertical support rods on both sides, the universal wheels are arranged at the bottom of the base, and push-pull handles are arranged on both sides of the base for horizontal movement of the base in cooperation with the universal wheels.

[0008] The lifting system comprises a hydraulic transmission assembly and a lifting plate, the hydraulic transmission assembly is arranged on the base, and the lifting plate is arranged above the hydraulic transmission assembly.

[0009] The support system comprises a support plate, a support column, and lateral support plates, the support plate is connected with the upper end of the lifting plate through the support column, and the lateral support plates are installed on both sides of the support plate.

[0010] The cutting system comprises a rotating body, a motor driving device (including a motor and a battery), and a rope saw, the motor driving device is arranged inside the base, the rotating body is connected with the motor driving device through an adjustable assembly, the motor driving device is used for driving the rotating body to work, and the rope saw is connected with the rotating body, the rotating body drives the rope saw to cut the concrete support beam.

[0011] Further, the adjustable assembly is a first limiting rod, a plurality of (3) first limiting holes are arranged on the first limiting rod, one first insertion hole matched with the first limiting holes is arranged on the rotating body, the first limiting rod is driven by the motor inside the base, and the first limiting rod is connected with the rotating body in an adjustable manner (the distance between the two rotating bodies is adjusted) by sequentially penetrating the first limiting holes and the first insertion hole through the first fixed insertion nails on the outside of the first limiting rod.

[0012] Further, the hydraulic transmission assembly is a hydraulic oil cylinder, the bottom of the shell of the hydraulic oil cylinder is fixedly connected with the upper end of the base through a pad, and the lifting shaft of the hydraulic oil cylinder is fixedly connected with the lifting plate.

[0013] Further, first limiters corresponding to the rotating bodies are arranged on the left and right sides of the base, and the length of the first limiters is matched with the minimum stroke length of the adjustable assembly.

[0014] Further, a second limiter corresponding to the lifting plate is arranged at the center of the upper portion of the base, and the height of the second limiter is matched with the minimum stroke length of the hydraulic transmission assembly.

[0015] Further, a horizontal steel pipe is installed inside the support plate, a group (two) of second limiting rods are welded on the lateral support plates on both sides, the second limiting rods penetrate the lateral support plates and are installed inside both ends of the steel pipe.

[0016] Further, the second limiting rod is provided with 3-5 second limiting holes, and each end of the steel pipe is provided with a second insertion hole matched with the second limiting hole, and the steel pipe is sequentially inserted through the second limiting hole and the second insertion hole to realize the adjustable connection with the second limiting rod, and the second limiting rod drives the lateral support plate to move left and right (that is, the lateral support plates on both sides are adjusted in distance through the second fixed insertion nail and the limiting rod to achieve the best matching with the size of the concrete cutting).

[0017] Further, a horizontal support web is arranged in the middle of the inner side of the lateral support plate, and the height of the horizontal support web is consistent with that of the support plate.

[0018] Further, a rope groove (positioning groove) matched with the steel wire rope is arranged on the support plate.

[0019] Further, the upper end of the lifting plate is provided with an insertion slot matched with the support column, the lower end of the support column is installed in the insertion slot of the lifting plate, and the upper part of the support column is threadedly connected with the lower part of the support plate; the support column has different lengths of models matched with the threads of the support plate and the insertion slot of the lifting plate.

[0020] Compared with the prior art, the adjustable device for supporting and demolishing the foundation pit supporting concrete has the following beneficial effects:

[0021] 1. The anti-overturning system and the supporting system can ensure that the device and the concrete block remain stable during the cutting process; the universal wheels at the bottom make the device move conveniently and quickly, which is beneficial to saving the time cost of the project and improving the construction efficiency;

[0022] 2. The height of the support plate can be adjusted through the hydraulic transmission device, different height concrete support beams can be adapted, the telescopic rope saw cutting system and the concrete supporting system ensure the cutting of different sizes of concrete blocks under various working conditions, the integrated operation of supporting and cutting is realized, the overall structure of the device is compact, and the practicability and safety are relatively strong;

[0023] 3. The upper side of the base and the left and right sides each have limiting rods with different lengths, the lengths of the limiting rods are matched with the minimum stroke of the lifting system and the cutting system respectively, the lateral support plate is fixed on the front and rear sides of the concrete support beam through the limiting rods, and the lateral sliding of the lateral support plate is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 The device front view structure schematic view is described in the embodiment of the utility model;

[0025] Fig. 2 The device side view structure schematic view is described in the embodiment of the utility model;

[0026] MARKING OF THE DRAWINGS:

[0027] 1. universal wheel, 2. motor and battery, 3. foot prop, 4. vertical support rod, 5. horizontal support rod, 6. base, 7. push-pull handle, 8. first limiting rod, 9. first fixed plug, 10. first limiting hole, 11. rotating body, 12. first limiter, 13. rope saw, 14. backing plate, 15. hydraulic oil cylinder, 16. second limiter, 17. lifting plate, 18. support column, 19. second limiting hole, 20. second fixed plug, 21. second limiting rod, 22. lateral support plate, 23. support plate, 24. rope groove, 25. steel pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the utility model will be described clearly and completely below in combination with the drawings in the utility model embodiments.

[0029] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can be explicitly or implicitly included one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0030] As Figs. 1-2 shown, the adjustable device for removing the foundation pit supporting concrete support, which is used for removing the foundation pit supporting concrete support, comprises an anti-overturning system, a lifting system, a supporting system and a cutting system.

[0031] The anti-overturning system mainly comprises universal wheels 1, foot props 3, vertical support rods 4, horizontal support rods 5 and a base 6. The universal wheels 1 are provided with threads above and are rotationally connected with the upper base 6. The number of the universal wheels 1 is four, which are evenly distributed below the base 6 in a square shape. The base 6 is connected with the foot props 3 through the horizontal support rods 5 and the vertical support rods 4 on the left and right sides. The vertical support rods 4 are rotationally connected with the foot props 3 below, and the horizontal support rods 5 are rotationally connected with the vertical support rods 4.

[0032] The lifting system mainly comprises a hydraulic transmission assembly, a second limiter 16 and a lifting plate 17; the hydraulic transmission assembly is a hydraulic oil cylinder 15, the number of the hydraulic oil cylinder 15 is four, the hydraulic oil cylinder 15 is evenly distributed in a square shape on the base 6, the outer shell bottom of the hydraulic oil cylinder 15 is fixedly connected with the upper end of the base 6 through a pad plate 14, the lifting shaft of the hydraulic oil cylinder 15 is fixedly connected with the lifting plate 17, the second limiter 16 is fixedly connected with the center of the upper part of the base 6, the height of the second limiter 16 matches the minimum stroke of the hydraulic oil cylinder 15, and when the linear stroke of the lifting system reaches the minimum stroke, the second limiter 16 will replace the hydraulic oil cylinder 15 to abut against the upper lifting plate 17.

[0033] The support system mainly comprises a support plate 23, a support column 18, a lateral support plate 22, a second limiting rod 21 and a second fixed plug 20, the lifting plate 17 has a groove matched with the support column 18, the support column 18 is installed in the groove of the lower lifting plate 17, and the support column 18 is threadedly connected with the upper support plate 23; the support column 18 has multiple models with different lengths matched with the threads of the upper support plate 23 and the groove of the lower lifting plate 17, so as to adapt to the working requirements in different working conditions; the lateral support plate 22 is installed on the two sides of the support plate 23, a steel pipe 25 is horizontally arranged in the support plate 23, a group of second limiting rods 21 are welded on the lateral support plates 22 on the two sides, the second limiting rods 21 pass through the lateral support plates 22 and are installed in the interiors of the two ends of the steel pipe, 3-5 second limiting holes 19 are formed in the second limiting rods 21, one second insertion hole matched with the second limiting hole 19 is arranged at each end of the steel pipe, the steel pipe 25 is sequentially connected with the second limiting rods 21 through the second limiting holes 19 and the second insertion holes (the second limiting rods 21 are fixedly connected with the support plate 23 through the second fixed plugs 20 installed in the second limiting holes 19) in an adjustable mode, the second limiting rods 21 drive the lateral support plates 22 to move leftward and rightward, so that the concrete block can be clamped according to the size of the concrete block; a horizontal support web is arranged in the middle of the inner side of the lateral support plate 22, and the height of the horizontal support web is consistent with that of the support plate 23; a rope groove 24 is formed in the support plate 23, so as to facilitate the transfer of the concrete block after cutting; the rope groove 24 is arranged to facilitate the transfer of the concrete block by using a crane, a steel wire rope is arranged in the rope groove in advance, the steel wire rope is fixed by using the gap of the rope groove 24 between the support plate 23 and the concrete support, and after the dismantling work is completed, the steel wire rope is fixed with the crane, so that the concrete block can be transferred.

[0034] The cutting system mainly comprises a rope saw 13 used for cutting, a first limiter 12, a rotating body 11 and a motor and a battery 2 (a motor driving device) for providing power for the rope saw 13, the rotating body 11 is connected with the internal motor and the battery 2 through a first limiting rod 8, the rope saw 13 is connected with the rotating body 11, and the rotating body 11 drives the rope saw 13 to cut the concrete support.

[0035] The first limiting rod 8 is provided with a plurality of first limiting holes 10, and the rotating body 11 is provided with a first insertion hole matched with the first limiting hole 10; the first limiting rod 8 is driven by the motor in the base 6, and the first limiting rod 8 is connected with the rotating body by sequentially penetrating the first limiting holes 10 and the first insertion hole through the first fixed insertion nails 9 on the outer side of the first limiting rod 8; the position of the rotating body 11 is adjusted by changing the position of the first fixed insertion nails 9.

[0036] The base 6 is provided with a lateral second limiter 12 on each of the left and right sides, and the lateral second limiter 12 will abut against the rotating body 11 when the rotating body 11 reaches the minimum stroke.

[0037] The rotating body 11 is connected with the first limiting rod 8 through the fixed insertion nails, and the number of the rotating body 11 is two and is distributed on both sides of the device; when the motor 2 works, the first limiting rod 8 is driven to rotate, and then the rotating body 11 is driven to rotate, so that the rope saw 13 cuts the concrete support.

[0038] The adjustable device for removing the foundation pit support concrete support mainly comprises the following steps:

[0039] S1, cutting and marking the cutting support part on the concrete support beam to ensure that the weight of the support cutting concrete block is 5-10 tons;

[0040] S2, chiseling the support corner main reinforcement at the cutting line position;

[0041] S3, moving the adjustable device for removing the foundation pit support concrete support to the position below the cutting support part of the concrete support beam, and opening the foot support 3 on the front and rear sides of the base 6 to fix the device;

[0042] S4, placing the steel wire rope in the rope groove 24, lifting the support plate 23 through the hydraulic oil cylinder 15 and placing it at the bottom of the cutting support part of the concrete support beam, and fixing the two lateral support plates 22 on the front and rear sides of the concrete support beam through the adjustment of the second limiting rod 21;

[0043] S5, fixing the rotating body 11 on both sides of the device below the cutting line of the concrete support beam through the adjustment of the first limiting rod 8, fixing the rope saw 13 on the upper part of the cutting line of the concrete support beam, adjusting the direction of the rope, and cutting along the cutting line; when the rope saw 13 is used to cut the concrete support beam, the cutting surface forms an inclination angle of 15° with respect to the vertical plane, and the opening is upward;

[0044] S6, after the concrete block is cut, the rope saw 13 is removed, the steel wire rope in the rope groove 24 is used to bundle and fix the concrete block, and the concrete block is lifted out of the foundation pit by the crane.

[0045] The above only describes the preferred examples of the utility model, but the utility model is not limited to the above examples, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the utility model, and the various changes should be included in the protection scope of the utility model.

Claims

1. An adjustable device for the demolition of a concrete support of a foundation pit support, characterized in that: The anti-overturning system, the lifting system, the support system and the cutting system are included. The anti-overturning system includes a base, universal wheels and a foot support, the base is connected with the foot support through horizontal support rods and vertical support rods on both sides, the universal wheels are arranged on the bottom of the base, and push-pull handles are arranged on both sides of the base for cooperation with the universal wheels to realize horizontal movement of the base. The lifting system includes a hydraulic transmission assembly and a lifting plate, the hydraulic transmission assembly is arranged on the base, and the lifting plate is arranged above the hydraulic transmission assembly. The support system includes a support plate, a support column and lateral support plates, the support plate is connected with the upper end of the lifting plate through the support column, and the lateral support plates are installed on both sides of the support plate. The cutting system includes a rotating body, a motor driving device and a rope saw, the motor driving device is arranged in the base, the rotating body is connected with the motor driving device through an adjustable assembly, the motor driving device is used for driving the rotating body to work, and the rope saw is connected with the rotating body, the rotating body drives the rope saw to cut the concrete support beam.

2. An adjustable device for the removal of a concrete support of a foundation pit support according to claim 1, characterized in that The adjustable assembly is a first limiting rod, a plurality of first limiting holes are arranged on the first limiting rod, one first insertion hole matched with the first limiting holes is arranged on the rotating body, the first limiting rod is driven by the motor in the base, and first fixed insertion nails are sequentially passed through the first limiting holes and the first insertion hole outside the first limiting rod to realize adjustable connection with the rotating body.

3. An adjustable device for the removal of a concrete support of a foundation pit support according to claim 1, characterized in that: The hydraulic transmission assembly is a hydraulic oil cylinder, the bottom of the shell of the hydraulic oil cylinder is fixedly connected with the upper end of the base through a pad, and the lifting shaft of the hydraulic oil cylinder is fixedly connected with the lifting plate.

4. An adjustable device for the removal of a concrete support of a foundation pit support according to claim 1, characterized in that: First limiters corresponding to the rotating body are arranged on both sides of the base, and the length of the first limiters is matched with the minimum stroke length of the adjustable assembly.

5. An adjustable device for the removal of a concrete support of a foundation pit support according to claim 1, characterized in that: A second limiter corresponding to the lifting plate is arranged at the center of the upper portion of the base, and the height of the second limiter is matched with the minimum stroke length of the hydraulic transmission assembly.

6. An adjustable device for the removal of a concrete support of a foundation pit support according to claim 1, characterized in that: A horizontal steel pipe is installed in the support plate, a group of second limiting rods are welded on both sides of the lateral support plates, the second limiting rods pass through the lateral support plates and are installed in the interiors of both ends of the steel pipe.

7. An adjustable device for the removal of a concrete support of a foundation pit support according to claim 6, characterized in that Three to five second limiting holes are arranged on the second limiting rods, one second insertion hole matched with the second limiting holes is arranged at each end of the steel pipe, the steel pipe is sequentially passed through the second limiting holes and the second insertion holes through second fixed insertion nails to realize adjustable connection with the second limiting rods, and the second limiting rods drive the lateral support plates to move left and right.

8. An adjustable device for the removal of a concrete support of a foundation pit support according to claim 1, characterized in that: A horizontal support web is arranged in the middle of the inner side of the lateral support plate, and the height of the horizontal support web is consistent with that of the support plate.

9. An adjustable device for the removal of a concrete support of a foundation pit support according to claim 1, characterized in that: A rope groove matched with the steel wire rope is arranged on the support plate.

10. An adjustable device for the removal of a concrete support of a foundation pit support according to claim 1, characterized in that: The upper end of the lifting plate is provided with a slot matched with the support column, the lower end of the support column is installed in the slot of the lifting plate, the upper portion of the support column is threadedly connected with the lower portion of the support plate, and the support column has different lengths of models matched with the threads of the support plate and the slot of the lifting plate.

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