Foundation pit slope supporting device

Abstract

The utility model discloses a foundation pit slope supporting device which is characterized in that the foundation pit slope supporting device comprises a base plate, a bayonet socket and a top supporting rod, and the base plate is fixedly installed on the ground; a plurality of inserting grooves are formed in the base plate, the inserting bases are inserted into the inserting grooves, the tops of the inserting bases are hinged to telescopic top supporting rods, and the other ends of the top supporting rods are hinged to hinge bases installed on the slope supporting plate; a mounting cavity is formed in the bayonet socket, a transverse hinged shaft is fixed in the middle of the interior of the mounting cavity, two V-shaped rods in bilateral symmetry are arranged on the transverse hinged shaft, each V-shaped rod comprises an upper rod and a lower rod which are hinged to the transverse hinged shaft at the V-shaped vertex, the upper rods of the two V-shaped rods are bent oppositely, and the ends of the upper rods of the two V-shaped rods are crossed; parts between the intersection and the V-shaped top point are connected left and right through a compression spring; the two sides of the lower part of the plugging groove are provided with positioning grooves for the insertion of the lower rod, and the two sides of the lower part of the plugging seat are provided with openings corresponding to the positioning grooves. The supporting device is convenient to install, and the supporting angle can be adjusted according to actual requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of rock and soil foundation pit construction, in particular to a foundation pit slope supporting device. Background Art

[0002] The foundation pit is a soil pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. During the construction of the rock and soil foundation pit, in order to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit and prevent the collapse of the foundation pit, it is usually necessary to use a slope support device to protect the slope of the foundation pit.

[0003] The foundation pit slope support is a measure to support, reinforce and protect the slope of the side wall of the foundation pit to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit. However, when the existing rock and soil foundation pit construction slope support devices are used, most of the support angles are fixed, which is inconvenient to adjust the inclination angle according to the actual situation of the slope, and the adaptability is poor. At the same time, each time it needs to be made separately according to the slope angle, which greatly increases the construction cost. Utility Model Content

[0004] The utility model aims to provide a foundation pit slope supporting device, which is easy to install and can adjust the supporting angle according to actual needs.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] A foundation pit slope support device comprises a base plate, a socket and a top support rod, wherein the base plate is fixedly mounted on the ground; a plurality of socket slots are arranged on the base plate, the sockets are inserted into the socket slots, the top of the socket is hinged to a retractable top support rod, and the other end of the top support rod is hinged to a hinge seat mounted on the slope support plate;

[0007] The socket is provided with an installation cavity, a transverse hinge shaft is fixed in the middle of the installation cavity, two left-right symmetrical V-shaped rods are arranged on the transverse hinge shaft, the V-shaped rods include an upper rod and a lower rod connected, the upper rod and the lower rod are hinged to the transverse hinge shaft at the apex of the V-shape, the upper rods of the two V-shaped rods are bent toward each other and the ends are crossed, and a compression spring is arranged between the intersection and the apex of the V-shape to connect the upper rods of the two V-shaped rods to the left and right;

[0008] Positioning grooves for inserting the lower rod are provided on both sides of the lower part of the plug-in slot, and openings corresponding to the positioning grooves are provided on both sides of the lower part of the plug-in seat. When the plug-in seat is placed in the plug-in slot, the two V-shaped rods can be pulled by the compression spring to make the lower rod of the V-shaped rod enter the plug-in slot.

[0009] The upper part of the positioning groove is a plane, and the lower part is an arc-shaped surface. The lower rod of the V-shaped rod can slide into the positioning groove along the arc-shaped surface.

[0010] The height of the plug-in seat increases gradually in the direction away from the slope support plate, and the hinged seats on the slope support plate are arranged vertically in sequence. The connection between the plug-in seat and the hinged seat of the slope support plate is based on a one-to-one correspondence between the plug-in seat farther away from the slope support plate and the hinged seat with a higher height.

[0011] The top support rods connected between each plug-in seat and the articulated seat of the slope support plate are arranged in parallel in sequence.

[0012] The top support rod is an electric push rod, which includes a plug rod and a socket rod, and a length adjusting piece is provided between the plug rod and the socket rod.

[0013] The length adjusting member comprises a threaded end disposed on the plug rod close to the socket rod and a threaded cavity disposed on the plug rod close to the socket rod, and the threaded end is threadedly connected with the threaded cavity to adjust the length.

[0014] The base plate is anchored to the ground through anchor bars.

[0015] The anchoring bars are evenly arranged along the base plate, and at locations where the sockets are provided, the anchoring bars are arranged between adjacent sockets.

[0016] A hinged piece for connecting with a top support rod is arranged on the side of the plug-in seat facing the slope support plate; and a cover body which can be opened and closed is arranged on the top of the plug-in seat surface.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The foundation pit slope support device of the utility model is easy to install and can improve construction efficiency; the device can adjust the support angle of the support plate according to the actual angle of the slope, effectively increasing the versatility of the device; at the same time, the number of sockets can be adjusted according to actual needs, thereby completing the adjustment of the supporting force of the slope support plate, effectively increasing the flexibility of use of the device; in addition, the socket slot and the socket are connected by V-shaped rod clamping, which can ensure that the socket is firmly plugged in and the device has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the foundation pit slope supporting device of the utility model.

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the socket and the socket slot.

[0021] In the figure: 1-base plate; 2-plug-in groove; 3-plug-in seat; 4-top support rod; 5-slope support plate; 6-square body; 7-transverse hinge shaft; 8-V-shaped rod; 9-positioning groove; 10-compression spring; 11-plug-in rod; 12-socket rod; 13-threaded end; 14-threaded cavity. DETAILED DESCRIPTION

[0022] The above contents of the utility model are further described in detail below in the form of embodiments, but this should not be understood as the scope of the above subject matter of the utility model is limited to the following embodiments. All technologies realized based on the above contents of the utility model belong to the scope of the utility model.

[0023] See also Figure 1 and Figure 2 A foundation pit slope support device includes a base plate 1, which is anchored to the ground by vertical anchor bars; a plurality of plug-in slots 2 are provided on the base plate 1, and a plug-in seat 3 is inserted into the plug-in slot 2; and a plurality of retractable top support rods 4 are hinged at one end to the top of each plug-in seat 3, and the other end of the top support rod 4 is hinged to a hinge seat installed on a slope support plate 5;

[0024] In the embodiment, the socket 3 includes a square body 6, which has an installation cavity, in which a transverse hinge shaft 7 is provided, and also includes two V-shaped rods 8 arranged on the transverse hinge shaft 7, the V-shaped rod 8 includes a connected upper rod and a lower rod, and the upper rod and the lower rod are respectively hinged to the transverse hinge shaft 7 at the V-shaped apex; the upper rods of the two V-shaped rods 8 are bent toward each other and the ends are crossed, and the part between the intersection and the V-shaped apex is connected left and right by a compression spring 10.

[0025] Positioning grooves 9 are provided on both sides of the lower part of the plug-in slot 2, and openings corresponding to the positioning grooves 9 are provided on both sides of the lower part of the plug-in seat 3. When the plug-in seat 3 is placed in the plug-in slot 2, the two V-shaped rods 8 can be pulled by the compression spring 10 so that the lower rods of the V-shaped rods 8 enter the plug-in slot 2.

[0026] The upper part of the positioning groove 9 is a plane, and the lower part is an arcuate surface. The lower rod of the V-shaped rod 8 can slide into the positioning groove 9 along the arcuate surface.

[0027] As a preferred embodiment, the height of the socket 3 increases gradually in the direction away from the slope support plate, and the hinged seats on the slope support plate are arranged vertically in sequence. The connection between the socket 3 and the hinged seat of the slope support plate is such that the socket 3 farther away from the slope support plate corresponds one-to-one with the hinged seat with higher height.

[0028] like Figure 1 As shown, the farthest socket 3 corresponds to the topmost hinged socket, and the remaining sockets 3 correspond to the intersection sockets one by one according to the distance and height from the support plate; the top support rods 4 connected between each socket 3 and the hinged seat of the slope support plate are arranged in parallel in sequence.

[0029] In this embodiment, the height of the socket 3 increases successively in the direction away from the slope, which can ensure that the connection between each top support rod 4 and the slope support plate 5 will not be affected by the other top support rods 4, thereby effectively ensuring the uniformity of the overall force of the top support rod 4.

[0030] The top support rod 4 is an electric push rod, including a plug rod 11 and a socket rod 12, and a length adjustment member is provided between the plug rod 11 and the socket rod 12. This embodiment provides an optional way to achieve the extension and retraction of the top support rod 4. When the power supply conditions or construction environment at the construction site are good, the electric push rod can be used to quickly adjust the length of the top support rod 4, so that the angle of the slope support plate 5 can be adjusted at any time during the construction process.

[0031] Specifically, the length adjusting member includes a threaded end 13 provided on the plug rod 11 near the socket rod 12, and a threaded cavity 14 provided on the plug rod 11 near the socket rod 12, and the threaded end 13 and the threaded cavity 14 are threadedly connected and the length is adjusted.

[0032] During actual installation, the socket rod 12 can be connected to the socket 3 or the slope support plate 5 first, and then the socket rod 11 can be rotated according to the actual slope angle to achieve the purpose of adjusting the length of the top support rod 4, and finally the socket rod 11 can be connected to the slope support plate 5 or the socket 3 to complete the support operation.

[0033] As a comparative embodiment, the plug-in sockets 3 are arranged in sequence along the direction of the slope, and the arrangement of the hinged seats on the slope support plate 5 is adjusted to a horizontal arrangement. The plug-in sockets and the hinged seats of the slope support plate correspond one by one in sequence, which can also achieve a similar effect. However, this method cannot adjust the angle of the slope support plate 5.

[0034] As a preferred embodiment, the base plate 1 is anchored to the ground by anchoring bars. Specifically, the anchoring bars are evenly arranged along the base plate 1, and the anchoring bars are arranged between adjacent sockets 3 where the sockets 3 are arranged.

[0035] As a preferred embodiment, a hinged part for connecting with the top support rod 4 is provided on the side of the socket 3 facing the slope support plate, so as to facilitate installation and stress bearing.

[0036] As a preferred embodiment, the top of the socket 3 has an openable and closable cover to facilitate the installation and protection of the V-shaped rod 8 in the socket groove.

[0037] In this utility model, the main principles are:

[0038] First, cut and weld the slope support plate 5 according to the actual situation of the construction site to ensure that the height of the slope support plate 5 meets the slope support requirements, and then insert the anchor bar at an appropriate position in the foundation pit to anchor the base plate 1 to the foundation pit ground; then insert the socket 3 into the socket groove 2 on the base plate 1. The specific operation is to press the upper rod ends of the two V-shaped rods 8 inward so that the lower rod of the V-shaped rod 8 is retracted into the square body 6. At this time, the compression spring 10 is compressed. After the lower rod of the V-shaped rod 8 is completely retracted, the socket 3 is vertically placed in the socket groove 2. At this time, the bottom of the V-shaped rod 8 is pressed against the inner wall of the installation cavity, and the socket 3 moves down as a whole. After it drops to the bottom of the socket slot 2, the upper rod of the V-shaped rod 8 is loosened, and the lower rod of the V-shaped rod 8 rebounds under the action of the compression spring 10, passes through the opening of the side wall of the installation cavity and is inserted into the positioning groove 9, thereby completing the clamping and locking of the socket 3; and then according to the actual distance between the installation seat and the slope support plate 5, adjust the length of the top support rod 4, and hinge the two ends of the top support rod 4 to the hinge seats on the socket 3 and the slope support plate 5 respectively, thereby completing the support for the slope.

[0039] The above description is only a preferred embodiment of the utility model and does not constitute any form of limitation to the utility model. Any technician familiar with the profession, without departing from the scope of the technical solution of the utility model and based on the technical essence of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment shall still fall within the scope of protection of the technical solution of the utility model.

Claims

1. A foundation pit slope support device, characterized in that: It includes a base plate, a socket and a top support rod, wherein the base plate is fixedly installed on the ground; the base plate is provided with a plurality of socket slots, the sockets are inserted into the socket slots, the top of the socket is hinged to a retractable top support rod, and the other end of the top support rod is hinged to a hinge seat installed on the slope support plate; The socket is provided with an installation cavity, a transverse hinge shaft is fixed in the middle of the installation cavity, two left-right symmetrical V-shaped rods are arranged on the transverse hinge shaft, the V-shaped rods include an upper rod and a lower rod connected, the upper rod and the lower rod are hinged to the transverse hinge shaft at the apex of the V-shape, the upper rods of the two V-shaped rods are bent toward each other and the ends are crossed, and a compression spring is arranged between the intersection and the apex of the V-shape to connect the upper rods of the two V-shaped rods to the left and right; Positioning grooves for inserting the lower rod are provided on both sides of the lower part of the plug-in slot, and openings corresponding to the positioning grooves are provided on both sides of the lower part of the plug-in seat. When the plug-in seat is placed in the plug-in slot, the two V-shaped rods can be pulled by the compression spring to make the lower rod of the V-shaped rod enter the plug-in slot.

2. The foundation pit slope support device according to claim 1, characterized in that: The upper part of the positioning groove is a plane, and the lower part is an arc-shaped surface. The lower rod of the V-shaped rod can slide into the positioning groove along the arc-shaped surface.

3. The foundation pit slope supporting device according to claim 1, characterized in that: The height of the plug-in seat increases gradually in the direction away from the slope support plate, and the hinged seats on the slope support plate are arranged vertically in sequence. The connection between the plug-in seat and the hinged seat of the slope support plate is based on a one-to-one correspondence between the plug-in seat farther away from the slope support plate and the hinged seat with a higher height.

4. The foundation pit slope supporting device according to claim 3 is characterized in that: The top support rods connected between each plug-in seat and the articulated seat of the slope support plate are arranged in parallel in sequence.

5. The foundation pit slope supporting device according to claim 1, characterized in that: The top support rod is an electric push rod, which includes a plug rod and a socket rod, and a length adjusting piece is provided between the plug rod and the socket rod.

6. The foundation pit slope support device according to claim 5, characterized in that: The length adjusting member comprises a threaded end disposed on the plug rod close to the socket rod and a threaded cavity disposed on the plug rod close to the socket rod, and the threaded end is threadedly connected with the threaded cavity to adjust the length.

7. The foundation pit slope supporting device according to claim 1, characterized in that: The base plate is anchored to the ground through anchor bars; the anchor bars are evenly arranged along the base plate, and where the sockets are provided, the anchor bars are arranged between adjacent sockets.

8. The foundation pit slope supporting device according to claim 1, characterized in that: A hinged piece for connecting with the top support rod is arranged on the side of the plug-in seat facing the slope support plate.

9. The foundation pit slope supporting device according to claim 1, characterized in that: The top of the plug-in seat surface is provided with a cover body which can be opened and closed.

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