Jacking device suitable for wide-range adjustment of width of foundation pit

Abstract

The utility model discloses a jacking device suitable for wide-range adjustment of the width of a foundation pit. The jacking device comprises a panel, a movable plate, a steel pipe sealing plate, a locking piece and a steel pipe. The movable plate is provided with a fixed end and a movable end which are opposite, and the fixed end of the movable plate is fixed on the panel. A plurality of groups of adjusting holes are formed in the movable plate and are arranged at intervals from the fixed end to the movable end. The steel pipe sealing plate is provided with a connecting hole for the movable plate to penetrate, and the locking piece penetrates into the adjusting hole so as to fix the distance of the movable plate extending out of the steel pipe sealing plate. Flanges of the steel pipes are connected with the steel pipe sealing plates. According to the top supporting device suitable for wide-range adjustment of the width of the foundation pit, the supporting length can be adjusted according to actual requirements, dependence on short section supporting is greatly reduced, and construction portability and construction efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to civil engineering technical field, concretely relates to a top bracing device of wide range adjustment of adaptation foundation pit width. BACKGROUND

[0002] In the foundation pit construction operation, often will select the steel sheet pile cofferdam plus assembled support as the foundation pit support structure, and the assembled support has the advantages of convenient installation and efficient construction. But due to the possible existence of pipeline, drain pipe, enlarged foundation, old pile and filling stone in the surrounding underground of foundation pit, or the construction error in the process of steel sheet pile driving, etc., the steel sheet pile driving process will appear to avoid obstacles, adjust the position of steel sheet pile, etc., and the steel sheet pile support spacing is variable after driving, and the support installation length is not unified.

[0003] At present, for the case that the steel sheet pile support spacing changes, a plurality of short section supports are generally used for adjustment, and the short section support assembly and adjustment process is complex, and the installation and disassembly are relatively troublesome, the dependence on the short section support adjustment section is high, and the length of the inner support structure is difficult to accurately adjust. UTILITY MODEL CONTENT

[0004] Therefore, it is necessary to provide a top bracing device of wide range adjustment of adaptation foundation pit width to solve the problems that the steel sheet pile support spacing changes, and a plurality of short section supports are used for adjustment, and the installation and disassembly are relatively troublesome.

[0005] A top bracing device of wide range adjustment of adaptation foundation pit width, comprising:

[0006] a panel;

[0007] a movable plate having opposite fixed ends and movable ends, the fixed end of the movable plate is fixed to the panel, a plurality of adjustment holes are provided on the movable plate, and the adjustment holes are arranged at intervals from the fixed end to the movable end;

[0008] a steel pipe sealing plate provided with a connecting hole for the movable plate to pass through;

[0009] a locking member arranged in the adjustment hole to fix the distance of the movable plate extending out of the steel pipe sealing plate; and

[0010] a steel pipe, the flange of the steel pipe is connected with the steel pipe sealing plate.

[0011] In one embodiment, the movable plate is provided with two groups, and the two groups of movable plates are symmetrically arranged on the panel along the axial direction of the panel, and the steel pipe sealing plate is correspondingly provided with two groups of connecting holes.

[0012] In one embodiment, the number of movable plates in each group is greater than two, and the plurality of movable plates in each group are uniformly distributed.

[0013] In one of the embodiments, a support rod is arranged between the two groups of movable plates, the steel pipe sealing plate is provided with a communication hole for the support rod to pass through, and the support rod is used to bear the telescopic mechanism for driving the panel to move relative to the steel pipe sealing plate.

[0014] In one of the embodiments, the steel pipe sealing plate comprises a first sealing plate, a second sealing plate and an intermediate cylinder, the first sealing plate and the second sealing plate are installed between the intermediate cylinder, the first sealing plate and the second sealing plate are both provided with the connecting hole, and the second sealing plate is connected with the flange of the steel pipe.

[0015] In one of the embodiments, the steel pipe sealing plate further comprises a stiffener plate, the stiffener plate is installed on the side wall of the intermediate cylinder, and the two ends of the stiffener plate are connected with the first sealing plate and the second sealing plate.

[0016] In one of the embodiments, the stiffener plate is provided with a lifting hole for a lifting hook to lift.

[0017] In one of the embodiments, the locking member comprises a bolt and a wedge-shaped pin, the bolt is arranged in the adjusting hole closest to the steel pipe sealing plate, and the wedge-shaped pin is inserted into the gap between the bolt and the steel pipe sealing plate.

[0018] In one of the embodiments, the end of the wedge-shaped pin away from the bolt is provided with an operation hole, and the operation hole is used to take out the wedge-shaped pin from the gap between the bolt and the steel pipe sealing plate.

[0019] In one of the embodiments, the cofferdam is provided with a hanging plate on the furring plate on the opposite side of the cofferdam, the panel is borne on one of the hanging plates, and the other end of the steel pipe is borne on the other hanging plate.

[0020] The above-mentioned top support device for adjusting the width of the foundation pit in a large range is transported to the site for on-site assembly, the steel pipe sealing plate is lifted, the movable plate is inserted into the connecting hole of the steel pipe sealing plate, then the steel pipe sealing plate is connected with the flange at the end of the steel pipe, then one end of the steel pipe is abutted with the furring plate of the cofferdam, and the panel is abutted with the furring plate on the other side of the cofferdam, finally, the telescopic mechanism is installed between the panel and the steel pipe sealing plate, the telescopic mechanism is elongated to drive the panel to move away from the steel pipe sealing plate, when the length of the support device is sufficient, the locking member is inserted into the adjusting hole to fix the distance between the movable plate and the steel pipe sealing plate, and the length of the top support device is fixed. The above-mentioned top support device for adjusting the width of the foundation pit in a large range can adjust the length of the support according to the actual demand, greatly reduces the dependence on the short section support, and improves the portability and construction efficiency of the construction. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present application, the following will be a brief introduction to the drawings needed in the specific embodiments. In all the drawings, the elements or parts are not necessarily drawn according to the actual proportion.

[0022] Figure 1 For an embodiment of the structure of the top support device suitable for wide range adjustment of foundation pit width;

[0023] Figure 2 For Figure 1 The structure diagram of the movable plate mounted on the panel in the embodiment;

[0024] Figure 3 For Figure 2 The side view of the movable plate mounted on the panel shown in the figure;

[0025] Figure 4 For Figure 2 The bottom view of the movable plate mounted on the panel shown in the figure;

[0026] Figure 5 For Figure 1 The structure diagram of the steel pipe sealing plate in the embodiment;

[0027] Figure 6 For Figure 5 The side view of the steel pipe sealing plate shown in the figure;

[0028] Figure 7 For Figure 6 The sectional view of the steel pipe sealing plate shown in the figure;

[0029] Figure 8 For Figure 1 The schematic diagram of the locking member locking the movable plate in the embodiment;

[0030] Figure 9 For Figure 1 The local enlarged view of A in the embodiment.

[0031] Reference signs:

[0032] 1-enclosure purlin, 10-panel, 20-movable plate, 21-adjusting hole, 30-steel pipe sealing plate, 302-connection hole, 304-communication hole, 31-first sealing plate, 32-second sealing plate, 33-intermediate cylinder, 34-stiffening plate, 341-hoisting hole, 40-locking member, 41-latch, 42-wedge-shaped pin, 421-operation hole, 50-steel pipe, 60-supporting rod, 70-hanging plate, 71-base plate, 72-bearing plate. DETAILED DESCRIPTION

[0033] In order to make the above objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific implementation disclosed below.

[0034] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be intervening elements. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application.

[0036] Please refer to Figure 1 A top bracing device for adjusting a large range of foundation pit width in an embodiment comprises a panel 10, a movable plate 20, a steel pipe sealing plate 30, a locking piece 40 and a steel pipe 50.

[0037] Please refer to Figures 2 to 4 The movable plate 20 is a long strip plate, and has opposite fixed and movable ends. The fixed end of the movable plate 20 is fixed to the panel 10. A plurality of sets of adjusting holes 21 are arranged on the movable plate 20 and are spaced apart from each other in the direction from the fixed end to the movable end.

[0038] In an embodiment, the plurality of sets of adjusting holes 21 can be uniformly arranged on the movable plate 20, or can be unevenly arranged on the movable plate 20 according to requirements, for example, the adjusting holes 21 closer to the panel 10 have smaller spacing, so that the top bracing device can be adjusted by a small distance in a short time.

[0039] In an embodiment, the movable plate 20 is provided with two sets, and the two sets of movable plates 20 are symmetrically arranged on the panel 10 along the axial direction of the panel 10. That is, the two sets of movable plates 20 are symmetrically designed about the center of the panel 10, so as to ensure the uniform force of the panel 10.

[0040] Further, the number of the movable plates 20 in each group is greater than two, and the plurality of movable plates 20 in each group are uniformly distributed. Specifically, the number of the movable plates 20 in each group can be 2, 3, or 4, etc. The higher the strength requirement of the jacking device is, the more the number of the movable plates 20 should be. Specifically, the number of the movable plates 20 in each group in the embodiment is 2.

[0041] Please refer to Figures 5 to 7 The steel pipe sealing plate 30 is provided with a connecting hole 302 for the movable plate 20 to pass through, and the steel pipe sealing plate 30 is connected with the flange of the steel pipe 50. The movable plate 20 can slide in the connecting hole 302, and by sliding the movable plate 20 relative to the steel pipe sealing plate 30, the distance of the movable plate 20 extending out of the steel pipe sealing plate 30 can be adjusted, and then the length of the jacking device is adjusted to adapt to the change of the width of the foundation pit.

[0042] In an embodiment, since the movable plate 20 is designed with two groups, the steel pipe sealing plate 30 is correspondingly provided with two groups of connecting holes 302, and the spacing of each group of connecting holes 302 is the same as the spacing between each group of movable plates 20, so as to ensure that the movable plate 20 and the connecting hole 302 have a one-to-one corresponding relationship.

[0043] In an embodiment, the steel pipe sealing plate 30 includes a first sealing plate 31, a second sealing plate 32, and an intermediate cylinder 33. The intermediate cylinder 33 is located between the first sealing plate 31 and the second sealing plate 32, and the two ends of the intermediate cylinder 33 are connected with the first sealing plate 31 and the second sealing plate 32 respectively. The first sealing plate 31 and the second sealing plate 32 are both provided with connecting holes 302, and the second sealing plate 32 is connected with the flange of the steel pipe 50. The movable plate 20 can pass through the connecting hole 302 of the first sealing plate 31, the intermediate cylinder 33, and the connecting hole 302 of the second sealing plate 32 into the steel pipe 50.

[0044] In an embodiment, the steel pipe sealing plate 30 further includes a stiffener plate 34, which is installed on the side wall of the intermediate cylinder 33, and the two ends of the stiffener plate 34 are connected with the first sealing plate 31 and the second sealing plate 32. The stiffener plate 34 can increase the strength of the steel pipe sealing plate 30, so as to avoid damage to the steel pipe sealing plate 30 under the action of a large axial pressure.

[0045] Further, the outer side wall and the inner side wall of the intermediate cylinder 33 are both provided with the stiffener plate 34, so as to further increase the strength of the steel pipe sealing plate 30. The stiffener plate 34 located in the intermediate cylinder 33 needs to be designed in a staggered manner with the connecting hole 302, so as to avoid interference between the stiffener plate 34 and the movable plate 20.

[0046] In an embodiment, the stiffener plate 34 is provided with a lifting hole 341 for lifting by a lifting hook. The lifting hook of the lifting device can lift the steel pipe sealing plate 30 through the lifting hole 341, which is convenient for the insertion of the movable plate 20 and the steel pipe sealing plate 30, and the connection of the movable plate 20 and the flange of the steel pipe 50.

[0047] In an embodiment, the bracing device which is suitable for adjusting the width of the foundation pit in a large range further comprises a support rod 60 which is arranged between the two groups of movable plates 20, and the steel pipe sealing plate 30 is provided with a communication hole 304 through which the support rod 60 passes. The support rod 60 is used to bear the telescopic mechanism which drives the movement of the face plate 10 relative to the steel pipe sealing plate 30.

[0048] Specifically, the number of support rods 60 is two, and the two support rods 60 are arranged in a spaced manner between the two groups of movable plates 20, so as to ensure the stability of the telescopic mechanism. The steel pipe sealing plate 30 is correspondingly provided with two communication holes 304. The telescopic mechanism can be a jack, and the telescopic mechanism can also be other structures capable of achieving telescopic movement, such as an electric push rod or a hydraulic cylinder.

[0049] Please refer to Figure 8 , the locking piece 40 is arranged in the adjusting hole 21, and the locking piece 40 is used to fix the distance between the movable plate 20 and the steel pipe sealing plate 30. In an embodiment, the locking piece 40 comprises a latch 41 and a wedge-shaped pin 42, and the latch 41 is arranged in the adjusting hole 21 closest to the steel pipe sealing plate 30. That is to say, after the jack adjusts the movement of the face plate 10 relative to the steel pipe sealing plate 30, the latch 41 is arranged in the adjusting hole 21 closest to the steel pipe sealing plate 30. Since the adjusting holes 21 are arranged in a spaced manner, after the latch 41 is inserted into the adjusting hole 21, there can be a gap between the latch 41 and the steel pipe sealing plate 30. Therefore, the wedge-shaped pin 42 is inserted into the gap between the latch 41 and the steel pipe sealing plate 30, so as to fix the length of the bracing device. At the same time, the wedge-shaped pin 42 is wedge-shaped, and can achieve continuous adjustment of the length of the bracing device.

[0050] In an embodiment, the end of the wedge-shaped pin 42 away from the latch 41 is provided with an operation hole 421, and the operation hole 421 is used to take out the wedge-shaped pin 42 from the gap between the latch 41 and the steel pipe sealing plate 30. That is to say, when it is necessary to take out the wedge-shaped pin 42 and release the fixing of the movable plate 20, the hook can be hung into the operation hole 421, and the wedge-shaped pin 42 can be pulled upwards to take out the wedge-shaped pin 42 from the gap between the latch 41 and the steel pipe sealing plate 30.

[0051] Please refer to Figure 9 In an embodiment, in order to facilitate the connection between the bracing device and the coaming 1 of the foundation pit cofferdam, the coaming 1 on the opposite sides of the foundation pit cofferdam is provided with a hanging plate 70, the face plate 10 is borne on one of the hanging plates 70, and the other end of the steel pipe 50 is borne on the other hanging plate 70.

[0052] Specifically, the hanging plate 70 comprises a base plate 71 and a bearing plate 72, the base plate 71 is installed on the cofferdam coaming 1, the bearing plate 72 is connected with the base plate 71, and the base plate 71 and the bearing plate 72 form an L shape. Wherein, when the bracing device is installed, the face plate 10 abuts against the base plate 71, and the bearing plate 72 is located below the face plate 10, thereby bearing the weight of the bracing device. Similarly, for the connection between the steel pipe 50 and the hanging plate 70, the end of the steel pipe 50 abuts against the base plate 71, and the bearing plate 72 is located below the steel pipe 50 to bear the weight of the bracing device.

[0053] The construction process of the bracing device capable of adjusting the width of the foundation pit in a large range is as follows:

[0054] After the device is transported to the site, on-site assembly is performed, the face plate 10 is placed on the flat ground, the movable plate 20 is vertically upward, then the steel pipe sealing plate 30 is hoisted, the connecting hole 302 and the communication hole 304 on the steel pipe sealing plate 30 are respectively aligned with the movable plate 20 and the support rod 60, and the steel pipe sealing plate 30 is slowly lowered to complete the assembly of the steel pipe sealing plate 30 and the movable plate 20.

[0055] Then, the flanges of the steel pipe sealing plate 30 and the steel pipe 50 are connected through high-strength bolts. The position of the movable plate 20 is preliminarily adjusted, so that the bracing device is substantially the same as the width of the cofferdam. One end of the steel pipe 50 is supported on one of the hanging plates 70, and the face plate 10 is supported on the other hanging plate 70.

[0056] The jack is installed on the two support rods 60, one end of the jack abuts against the steel pipe sealing plate 30, and the other end abuts against the face plate 10. The jack is elongated to increase the distance between the face plate 10 and the steel pipe sealing plate 30. After the length of the bracing device is sufficient, the bolt 41 is inserted into the adjusting hole 21 closest to the steel pipe sealing plate 30, and then the wedge-shaped pin 42 is inserted into the gap between the bolt 41 and the steel pipe sealing plate 30, so as to achieve the purpose of applying pre-tension.

[0057] The bracing device capable of adjusting the width of the foundation pit in a large range can adjust the length of the support according to actual needs, greatly reduces the dependence on the short section support, and improves the portability and construction efficiency of the construction.

[0058] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not change the essence of the corresponding technical solutions out of the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

Claims

1. A top support device adaptable to a wide range of adjustable foundation pit width, characterized in that, include: panel; The movable plate has a fixed end and a movable end. The fixed end of the movable plate is fixed to the panel. The movable plate is provided with multiple sets of adjustment holes, which are spaced apart from the fixed end to the movable end. The steel pipe sealing plate is provided with a connecting hole for the movable plate to pass through; A locking element, inserted into the adjusting hole, is used to fix the distance by which the movable plate extends beyond the steel pipe sealing plate; and A steel pipe, wherein the flange of the steel pipe is connected to the steel pipe sealing plate.

2. The top support device for adapting to a wide range of pit width adjustment according to claim 1, characterized in that, The movable plate is provided in two sets, and the two sets of movable plates are symmetrically arranged on the panel along the axial direction of the panel. The steel pipe sealing plate is provided with two sets of connecting holes.

3. The top support device for adapting to a wide range of pit width adjustment according to claim 2, characterized in that, The number of movable boards in each group is greater than two, and the multiple movable boards in each group are evenly distributed at intervals.

4. The top support device for adapting to a wide range of pit width adjustment according to claim 2, characterized in that, It also includes a support rod, which is disposed between the two sets of movable plates. The steel pipe sealing plate has a connecting hole for the support rod to pass through. The support rod is used to support a telescopic mechanism that drives the panel to move relative to the steel pipe sealing plate.

5. The top support device for adapting to a wide range of pit width adjustment according to claim 1, characterized in that, The steel pipe sealing plate includes a first sealing plate, a second sealing plate, and an intermediate cylinder. The first sealing plate and the second sealing plate are installed between the intermediate cylinder. Both the first sealing plate and the second sealing plate have the connection hole. The second sealing plate is connected to the flange of the steel pipe.

6. The top support device for adapting to a wide range of pit width adjustment according to claim 5, characterized in that, The steel pipe sealing plate also includes a stiffening plate, which is installed on the side wall of the intermediate cylinder, and the two ends of the stiffening plate are connected to the first sealing plate and the second sealing plate.

7. The top support device for adapting to a wide range of pit width adjustment according to claim 6, characterized in that, The stiffening plate is provided with lifting holes for lifting hooks.

8. The top support device for adapting to a wide range of pit width adjustment according to claim 1, characterized in that, The locking element includes a pin and a wedge pin. The pin passes through the adjustment hole closest to the steel pipe sealing plate, and the wedge pin is inserted into the gap between the pin and the steel pipe sealing plate.

9. The top support device for adapting to a wide range of pit width adjustment according to claim 8, characterized in that, The wedge pin has an operating hole at its end away from the pin, the operating hole being used to remove the wedge pin from the gap between the pin and the steel pipe sealing plate.

10. The top support device for adapting to a wide range of pit width adjustment according to claim 1, characterized in that, Hanging plates are provided on the walers on both sides of the foundation pit cofferdam. The panel is supported on one of the hanging plates, and the other end of the steel pipe is supported on the other hanging plate.

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