Turnover pipe ditch excavation foundation pit supporting structure

Abstract

The utility model provides a turnover pipe trench excavation foundation pit supporting structure which is arranged in a pipe trench during use, so that a left side baffle and a right side baffle are respectively adjacent to the left side wall and the right side wall of the pipe trench, and an upper adjusting rod and a lower adjusting rod are driven by an adjusting device to be away from each other vertically, so that the upper adjusting rod moves upwards and the lower adjusting rod moves downwards; further, the right ends of the front upper and rear upper left connecting rods and the left ends of the front upper and rear upper right connecting rods move upwards, and the right ends of the front lower and rear lower left connecting rods and the left ends of the front lower and rear lower right connecting rods move downwards to open the left and right side baffles, so that the left and right side baffles abut against the left and right side walls of the pipe channel respectively, and supporting is achieved; when storage is needed, the flow opposite to the above process is adopted, the upper and lower adjusting rods are driven by the adjusting device to vertically draw close to each other, finally, the left and right side baffles draw close to each other and are far away from the left and right side walls of the pipe channel, and storage, carrying and turnover can be achieved. The novel pipe trench is convenient to store and unfold, convenient to turn in the pipe trench, simple and convenient to operate and convenient and flexible to use.

Description

Technical Field

[0001] The utility model relates to the technical field of urban construction, in particular to the technical field of foundation pit excavation for laying rainwater and sewage pipes, and specifically refers to a foundation pit support structure capable of excavating a turnover pipe trench. Background Art

[0002] Urban development is a crucial component of urban management. Based on planning, urban development transforms the urban living environment through construction projects and builds the physical infrastructure within the urban system. Urban development encompasses the physical form of each facility within the urban system and is a fundamental, phased effort to create favorable conditions for urban management.

[0003] In the process of urban construction, the laying of rainwater and sewage pipes is often involved. During the laying of rainwater and sewage pipes, foundation pit excavation and the addition of pipe trenches are often involved. Due to the looseness of the soil, support is used to protect the foundation pit.

[0004] Existing foundation pit supports are usually assembled using batches of side baffles to make them close to the inner wall of the foundation pit, and then additional support mechanisms are added to support the relative multiple groups of side baffles. Although it can be applied to foundation pits of different specifications, the operation is complicated and the labor intensity is high. When transferring the support, all components need to be disassembled in turn, which is inconvenient to store and unfold them, and difficult to circulate inside the trench, which has certain limitations in its use.

[0005] Therefore, it is hoped to provide a trench excavation foundation pit support structure that is easy to store and unfold, convenient to circulate inside the trench, simple to operate, and convenient and flexible to use. Utility Model Content

[0006] In order to overcome the shortcomings of the above-mentioned prior art, one purpose of the present utility model is to provide a rotatable trench excavation foundation pit support structure, which is easy to store and unfold, convenient to circulate inside the trench, simple to operate, convenient and flexible to use, and suitable for large-scale promotion and application.

[0007] Another object of the present invention is to provide a recyclable pipe trench excavation foundation pit support structure, which has an ingenious design, a simple structure, is easy to manufacture, has a low manufacturing cost, and is suitable for large-scale promotion and application.

[0008] To achieve the above objectives, the present invention provides a revolvable pipe trench excavation foundation pit support structure, comprising a left baffle and a right baffle, wherein the left baffle and the right baffle are both arranged vertically and in the front-to-back direction and spaced apart from each other on the left and right sides. The structure is characterized in that the revolvable pipe trench excavation foundation pit support structure further comprises an adjustment mechanism, a front folding mechanism, and a rear folding mechanism, wherein:

[0009] The adjustment mechanism includes an adjustment device, an upper adjustment rod and a lower adjustment rod, wherein the upper adjustment rod and the lower adjustment rod are both arranged along the front-to-back direction and spaced apart from each other up and down and are both located between the left baffle and the right baffle, and the adjustment device is respectively connected to the middle portion of the upper adjustment rod and the middle portion of the lower adjustment rod for driving the upper adjustment rod and the lower adjustment rod to vertically move closer to or away from each other, thereby adjusting the vertical spacing between the upper adjustment rod and the lower adjustment rod;

[0010] The front folding mechanism includes a front upper left connecting rod, a front upper right connecting rod, a front lower left connecting rod and a front lower right connecting rod, the front upper left connecting rod and the front upper right connecting rod are both inclined along the left and right directions and are arranged in an inverted eight shape with each other along the left and right directions and are respectively located between the left baffle and the front end of the upper adjustment rod and between the front end of the upper adjustment rod and the right baffle, the left end and the right end of the front upper left connecting rod are respectively rotatably connected to the left baffle and the front end of the upper adjustment rod around the front and rear directions, and the left end and the right end of the front upper right connecting rod are respectively rotatably connected to the left baffle and the front end of the upper adjustment rod around the front and rear directions The front end of the upper adjusting rod and the right side baffle, the front lower left connecting rod and the front lower right connecting rod are all inclined along the left and right directions and are arranged in an eight-shaped shape with each other along the left and right directions and are respectively located between the left baffle and the front end of the lower adjusting rod and between the front end of the lower adjusting rod and the right side baffle, the left end and the right end of the front lower left connecting rod are respectively rotatable about the front and rear directions to connect the left baffle and the front end of the lower adjusting rod, and the left end and the right end of the front lower right connecting rod are respectively rotatable about the front and rear directions to connect the front end of the lower adjusting rod and the right side baffle;

[0011] The rear folding mechanism comprises a rear upper left connecting rod, a rear upper right connecting rod, a rear lower left connecting rod and a rear lower right connecting rod. The rear upper left connecting rod and the rear upper right connecting rod are both inclined along the left and right directions and are arranged in an inverted eight shape with each other along the left and right directions and are respectively located between the left baffle and the rear end of the upper adjusting rod and between the rear end of the upper adjusting rod and the right baffle. The left end and the right end of the rear upper left connecting rod are respectively rotatably connected to the left baffle and the rear end of the upper adjusting rod around the front and rear directions, and the left end and the right end of the rear upper right connecting rod are respectively rotatably connected to the left baffle and the rear end of the upper adjusting rod around the front and rear directions The rear end of the upper adjusting rod and the right side baffle are connected, the rear lower left connecting rod and the rear lower right connecting rod are both inclined along the left and right directions and arranged in an eight-shaped shape with each other along the left and right directions and are respectively located between the left side baffle and the rear end of the lower adjusting rod and between the rear end of the lower adjusting rod and the right side baffle, the left end and the right end of the rear lower left connecting rod are respectively rotatable around the front and rear directions to connect the left side baffle and the rear end of the lower adjusting rod, and the left end and the right end of the rear lower right connecting rod are respectively rotatable around the front and rear directions to connect the rear end of the lower adjusting rod and the right side baffle.

[0012] Preferably, the adjusting device includes an adjusting stud, which is vertically arranged, and the thread rotation direction of the upper part of the adjusting stud and the thread rotation direction of the lower part of the adjusting stud are opposite, and the upper part of the adjusting stud and the lower part of the adjusting stud are respectively vertically penetrated and threadedly engaged with the middle part of the upper adjusting rod and the middle part of the lower adjusting rod.

[0013] More preferably, the adjustment device further comprises a top adjustment sleeve, which is horizontally arranged and vertically sleeved on the upper end of the adjustment stud and located above the middle portion of the upper adjustment rod.

[0014] More preferably, the adjustment device further comprises a middle adjustment sleeve, which is horizontally arranged and vertically sleeved on the middle part of the adjustment stud.

[0015] More preferably, the recyclable pipe trench excavation foundation pit support structure also includes a supporting mechanism, which includes a chassis and anchor nails. The chassis is horizontally arranged, and the lower end of the adjusting stud is horizontally rotatably arranged on the chassis. The anchor nails are vertically arranged and downwardly arranged. The anchor nails are located under the chassis and connected to the chassis. There are multiple anchor nails, and the multiple anchor nails are horizontally spaced apart from each other.

[0016] Furthermore, the number of the anchors is 5, 4 of which are located at the 4 corners of a rectangle, and the remaining anchor is located in the middle of the 4 anchors.

[0017] Furthermore, the support mechanism further includes a bearing, which is horizontally arranged on the chassis, and the lower end of the adjusting stud is vertically inserted into the bearing.

[0018] Preferably, the front folding mechanism also includes a front insertion rod, which is vertically arranged, and the upper and lower parts of the front insertion rod are respectively vertically movably inserted into the front end of the upper adjustment rod and the front end of the lower adjustment rod, and the lower end of the front insertion rod gradually becomes pointed from top to bottom.

[0019] Preferably, the front folding mechanism also includes a rear insertion rod, which is vertically arranged, and the upper and lower parts of the rear insertion rod are vertically movably inserted into the rear end of the upper adjustment rod and the rear end of the lower adjustment rod respectively, and the lower end of the rear insertion rod gradually becomes pointed from top to bottom.

[0020] Preferably, the front side and the rear side of the left baffle are respectively vertically provided with a left front embedding groove and a left rear embedding groove, the front side of the top of the left baffle and the front side of the bottom of the left baffle are respectively vertically provided with a left front upper positioning hole and a left front lower positioning hole, the left front upper positioning hole and the left front lower positioning hole are both connected to the left front embedding groove, the rear side of the top of the left baffle and the rear side of the bottom of the left baffle are respectively vertically provided with a left rear upper positioning hole and a left rear lower positioning hole, the left rear upper positioning hole and the left rear lower positioning hole are both connected to the left rear embedding groove Slot; the front side surface and the rear side surface of the right side baffle are respectively vertically provided with a right front embedding slot and a right rear embedding slot, the front side of the top of the right side baffle and the front side of the bottom of the right side baffle are respectively vertically provided with a right front upper positioning hole and a right front lower positioning hole, the right front upper positioning hole and the right front lower positioning hole are both connected to the right front embedding slot, the rear side of the top of the right side baffle and the rear side of the bottom of the right side baffle are respectively vertically provided with a right rear upper positioning hole and a right rear lower positioning hole, the right rear upper positioning hole and the right rear lower positioning hole are both connected to the right rear embedding slot.

[0021] The beneficial effects of the present invention are mainly:

[0022] When the cam is in a closed position, the left and right side panels are respectively moved away from each other, and the upper and lower adjustment rods are driven by the adjusting device to move the upper and lower adjustment rods vertically apart from each other, thereby causing the upper adjustment rod to move upward and the lower adjustment rod to move downward, thereby causing the right end of the front upper left connecting rod, the left end of the front upper right connecting rod, the right end of the rear upper left connecting rod and the left end of the rear upper right connecting rod to move upward, and the right end of the front lower left connecting rod, the left end of the front lower right connecting rod, the right end of the rear lower left connecting rod and the left end of the rear lower right connecting rod to move downward, thereby expanding the left and right side panels so that the left and right side panels are respectively against the left and right walls of the cam to achieve support. When the vehicle body is to be stored, the upper and lower regulating rods are driven by the adjusting device to vertically move closer to each other, thereby causing the upper regulating rod to move downward and the lower regulating rod to move upward, thereby causing the right end of the front upper left connecting rod, the left end of the front upper right connecting rod, the right end of the rear upper left connecting rod and the left end of the rear upper right connecting rod to move downward, and the right end of the front lower left connecting rod, the left end of the front lower right connecting rod, the right end of the rear lower left connecting rod and the left end of the rear lower right connecting rod to move upward, pulling the left baffle and the right baffle together, so that the left baffle and the right baffle are respectively away from the left and right walls of the pipe channel, and the utility model can be stored, carried and circulated. Therefore, it is easy to store and unfold, convenient to circulate inside the pipe channel, simple to operate, convenient and flexible to use, and suitable for large-scale promotion and application.

[0023] 2. When the revolving pipe trench excavation foundation pit support structure of the present invention is used, the present invention is placed in the pipe trench so that the left baffle and the right baffle are adjacent to the left and right walls of the pipe trench respectively, and the upper adjusting rod and the lower adjusting rod are driven vertically away from each other by the adjusting device, so that the upper adjusting rod moves up and the lower adjusting rod moves down, thereby causing the right end of the front upper left connecting rod, the left end of the front upper right connecting rod, the right end of the rear upper left connecting rod and the left end of the rear upper right connecting rod to move up, and the right end of the front lower left connecting rod, the left end of the front lower right connecting rod, the right end of the rear lower left connecting rod and the left end of the rear lower right connecting rod to move down, thereby spreading the left and right baffles so that the left and right baffles respectively abut against the left and right walls of the pipe trench, thereby achieving When the cam is in a closed position, the left and right sides of the vehicle are moved up and down, and the left and right sides of the vehicle are moved up and down, so that the cam can be adjusted and adjusted accordingly.

[0024] These and other objects, features and advantages of the present invention are fully reflected in the following detailed description and drawings, and can be achieved by the means, devices and their combinations specifically pointed out in the content of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The present invention is a stereoscopic schematic diagram of two specific embodiments of a revolving pipe trench excavation foundation pit support structure according to the present invention, which are arranged in sequence in front and behind.

[0026] Figure 2 yes Figure 1 A schematic top view of the specific embodiment shown.

[0027] Figure 3 yes Figure 1 The specific embodiment shown is a partial three-dimensional schematic diagram mainly showing the adjustment mechanism and the supporting mechanism.

[0028] Figure 4 yes Figure 1 The illustrated embodiment is a partial perspective schematic diagram mainly showing the front folding mechanism.

[0029] Figure 5 yes Figure 1 The illustrated embodiment is a partial perspective schematic diagram mainly showing the rear folding mechanism.

[0030] (Explanation of Symbols)

[0031] 1 left side baffle; 11 left front embedded slot; 12 left front upper positioning hole; 13 left rear upper positioning hole;

[0032] 2 right side baffle; 21 right front embedded slot; 22 right front upper positioning hole; 23 right rear upper positioning hole;

[0033] 3 adjustment mechanism; 31 adjustment device; 311 adjustment stud; 312 top adjustment sleeve; 313 middle adjustment sleeve; 32 upper adjustment rod; 33 lower adjustment rod;

[0034] 4 front folding mechanism; 41 front upper left connecting rod; 42 front upper right connecting rod; 43 front lower left connecting rod; 44 front lower right connecting rod; 45 front insertion rod;

[0035] 5 rear folding mechanism; 51 rear upper left connecting rod; 52 rear upper right connecting rod; 53 rear lower left connecting rod; 54 rear lower right connecting rod; 55 rear insertion rod;

[0036] 6 Support mechanism; 61 Chassis; 62 Anchor; 63 Bearing. DETAILED DESCRIPTION

[0037] In order to more clearly understand the technical content of the present invention, the following embodiments are given to explain in detail.

[0038] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0039] See Figures 1 to 5 As shown, in a specific embodiment of the present invention, the revolvable pipe trench excavation foundation pit support structure of the present invention includes a left baffle 1, a right baffle 2, an adjustment mechanism 3, a front folding mechanism 4 and a rear folding mechanism 5, wherein:

[0040] The left baffle 1 and the right baffle 2 are both arranged vertically and along the front-to-back direction and spaced apart from each other left and right. The adjusting mechanism 3 includes an adjusting device 31, an upper adjusting rod 32 and a lower adjusting rod 33. The upper adjusting rod 32 and the lower adjusting rod 33 are both arranged along the front-to-back direction and spaced apart from each other up and down and are both located between the left baffle 1 and the right baffle 2. The adjusting device 31 is respectively connected to the middle part of the upper adjusting rod 32 and the middle part of the lower adjusting rod 33 to drive the upper adjusting rod 32 and the lower adjusting rod 33 to vertically move closer to and away from each other, thereby adjusting the vertical spacing between the upper adjusting rod 32 and the lower adjusting rod 33.

[0041] The front folding mechanism 4 includes a front upper left connecting rod 41, a front upper right connecting rod 42, a front lower left connecting rod 43 and a front lower right connecting rod 44. The front upper left connecting rod 41 and the front upper right connecting rod 42 are both inclined along the left and right directions and are arranged in an inverted eight shape with each other along the left and right directions and are respectively located between the left baffle 1 and the front end of the upper adjustment rod 32 and between the front end of the upper adjustment rod 32 and the right baffle 2. The left end and the right end of the front upper left connecting rod 41 are respectively rotatable around the front and rear directions to connect the left baffle 1 and the front end of the upper adjustment rod 32, and the left end and the right end of the front upper right connecting rod 42 are respectively rotatable around the front and rear directions The front end of the upper adjustment rod 32 and the right side baffle 2 are connected, the front lower left connecting rod 43 and the front lower right connecting rod 44 are both inclined along the left and right directions and are arranged in an eight-shaped shape with each other along the left and right directions and are respectively located between the left side baffle 1 and the front end of the lower adjustment rod 33 and between the front end of the lower adjustment rod 33 and the right side baffle 2, the left end and the right end of the front lower left connecting rod 43 are respectively rotatable about the front and rear directions to connect the left side baffle 1 and the front end of the lower adjustment rod 33, and the left end and the right end of the front lower right connecting rod 44 are respectively rotatable about the front and rear directions to connect the front end of the lower adjustment rod 33 and the right side baffle 2;

[0042] The rear folding mechanism 5 includes a rear upper left connecting rod 51, a rear upper right connecting rod 52, a rear lower left connecting rod 53 and a rear lower right connecting rod 54. The rear upper left connecting rod 51 and the rear upper right connecting rod 52 are both inclined along the left and right directions and are arranged in an inverted eight shape with each other along the left and right directions and are respectively located between the left baffle 1 and the rear end of the upper adjustment rod 32 and between the rear end of the upper adjustment rod 32 and the right baffle 2. The left end and the right end of the rear upper left connecting rod 51 are respectively rotatable around the front and rear directions to connect the left baffle 1 and the rear end of the upper adjustment rod 32. The left end and the right end of the rear upper right connecting rod 52 are respectively rotatable around the front and rear directions to connect the left baffle 1 and the rear end of the upper adjustment rod 32. The rear end of the upper adjusting rod 32 and the right side baffle 2 are dynamically connected, the rear end of the rear lower left connecting rod 53 and the rear lower right connecting rod 54 are both inclined along the left and right directions and arranged in an eight-shaped shape with each other along the left and right directions and are respectively located between the left side baffle 1 and the rear end of the lower adjusting rod 33 and between the rear end of the lower adjusting rod 33 and the right side baffle 2, the left end and the right end of the rear lower left connecting rod 53 are respectively rotatable around the front and rear directions to connect the left side baffle 1 and the rear end of the lower adjusting rod 33, and the left end and the right end of the rear lower right connecting rod 54 are respectively rotatable around the front and rear directions to connect the rear end of the lower adjusting rod 33 and the right side baffle 2.

[0043] The regulating device 31 may have any suitable configuration, see Figures 1 to 3As shown, in a specific embodiment of the present invention, the adjusting device 31 includes an adjusting stud 311, which is vertically arranged, and the thread rotation direction of the upper part of the adjusting stud 311 and the thread rotation direction of the lower part of the adjusting stud 311 are opposite, and the upper part of the adjusting stud 311 and the lower part of the adjusting stud 311 are respectively vertically penetrated and threadedly engaged with the middle part of the upper adjusting rod 32 and the middle part of the lower adjusting rod 33. When the cam 312 is in the unlock state, the locking cam 311 is in the unlock state, and the locking cam 312 is in the unlock state, so that the cam 312 and the lower adjustment rod 32 can be unlocked.

[0044] The regulating device 31 may also include any other suitable components, see Figures 1 to 3 As shown, in a specific embodiment of the present invention, the adjustment device 31 further includes a top adjustment sleeve 312, which is horizontally arranged and vertically sleeved on the upper end of the adjustment screw 311 and located above the middle portion of the upper adjustment rod 32. With this arrangement, the adjustment screw 311 can be horizontally rotated via the top adjustment sleeve 312.

[0045] The top adjustment sleeve 312 can be any suitable adjustment sleeve. In a specific embodiment of the present invention, the top adjustment sleeve 312 is an adjustment nut.

[0046] The regulating device 31 may also include any other suitable components, see Figure 3 As shown, in a specific embodiment of the present invention, the adjustment device 31 further includes a middle adjustment sleeve 313, which is horizontally arranged and vertically sleeved on the middle part of the adjustment screw 311. With the above arrangement, the adjustment screw 311 can be horizontally rotated through the middle adjustment sleeve 313.

[0047] The middle adjustment sleeve 313 can be any suitable adjustment sleeve. In a specific embodiment of the present invention, the middle adjustment sleeve 313 is an adjustment nut.

[0048] The recyclable pipe trench excavation foundation pit support structure may also include any other suitable components, see Figures 2 and 3 As shown, in a specific embodiment of the present invention, the revolvable pipe trench excavation foundation pit support structure further includes a support mechanism 6, which includes a chassis 61 and anchors 62. The chassis 61 is horizontally arranged, and the lower end of the adjustment stud 311 is horizontally rotatably arranged on the chassis 61. The anchors 62 are vertically arranged and downwardly arranged. The anchors 62 are located below and connected to the chassis 61. There are multiple anchors 62, and the multiple anchors 62 are horizontally spaced apart. With the above arrangement, when in use, the anchors 62 can be embedded in the bottom of the pipe trench, acting as a limiter and improving the stability of the installation of the present invention.

[0049] The number of anchors 62 can be determined as needed. The above "multiple" refers to more than 2. Figure 3 As shown, in a specific embodiment of the present invention, the number of the anchor nails 62 is 5, of which 4 are located at the 4 corners of a rectangle, and the remaining anchor nail 62 is located in the middle of the 4 anchor nails 62.

[0050] The lower end of the adjusting screw 311 is rotatably arranged on the chassis 61 and can adopt any suitable structure. Figures 2 and 3 As shown, in a specific embodiment of the present invention, the support mechanism 6 further includes a bearing 63, which is horizontally disposed on the chassis 61, and the lower end of the adjusting screw 311 is vertically inserted into the bearing 63. With the above arrangement, the lower end of the adjusting screw 311 can rotate horizontally relative to the chassis 61 through the bearing 63.

[0051] The front folding mechanism 4 may also include any other suitable components, see Figure 1 and Figure 4 As shown, in a specific embodiment of the present invention, the front folding mechanism 4 further includes a front insertion rod 45, which is vertically arranged. The upper and lower parts of the front insertion rod 45 are respectively vertically movably inserted into the front end of the upper adjustment rod 32 and the front end of the lower adjustment rod 33, and the lower end of the front insertion rod 45 gradually becomes pointed from top to bottom. With the above arrangement, when in use, the front insertion rod 45 can guide the up and down movement of the front end of the upper adjustment rod 32 and the front end of the lower adjustment rod 33, thereby improving the stability of the movement of the front end of the upper adjustment rod 32 and the front end of the lower adjustment rod 33; the lower end of the front insertion rod 45 can be inserted into the bottom of the pipe channel to play a limiting role, thereby improving the stability of the use of the present invention.

[0052] The front folding mechanism 4 may also include any other suitable components, see Figure 1 and Figure 5 As shown, in a specific embodiment of the present invention, the front folding mechanism 4 further includes a rear insertion rod 55, which is vertically arranged. The upper and lower portions of the rear insertion rod 55 are respectively vertically movably inserted into the rear ends of the upper adjustment rod 32 and the lower adjustment rod 33, and the lower end of the rear insertion rod 55 gradually becomes pointed from top to bottom. With the above arrangement, when in use, the rear insertion rod 55 can guide the up and down movement of the rear ends of the upper adjustment rod 32 and the lower adjustment rod 33, thereby improving the stability of the movement of the rear ends of the upper adjustment rod 32 and the lower adjustment rod 33; the lower end of the rear insertion rod 55 can be inserted into the bottom of the pipe channel to play a limiting role, thereby improving the stability of the present invention.

[0053] The left side baffle 1 and the right side baffle 2 may have any suitable configuration. Figures 1 and 2 As shown, in a specific embodiment of the present invention, the front side and the rear side of the left side baffle 1 are respectively vertically provided with a left front embedding groove 11 and a left rear embedding groove (not shown in the figure), the front side of the top of the left side baffle 1 and the front side of the bottom of the left side baffle 1 are respectively vertically provided with a left front upper positioning hole 12 and a left front lower positioning hole (not shown in the figure), the left front upper positioning hole 12 and the left front lower positioning hole are both connected to the left front embedding groove 11, the rear side of the top of the left side baffle 1 and the rear side of the bottom of the left side baffle 1 are respectively vertically provided with a left rear upper positioning hole 13 and a left rear lower positioning hole (not shown in the figure), the left rear upper positioning hole 13 and the left rear lower positioning hole are both connected Through the left rear embedding groove; the front side surface and the rear side surface of the right side baffle 2 are respectively vertically provided with a right front embedding groove 21 and a right rear embedding groove (not shown in the figure), the front side of the top of the right side baffle 2 and the front side of the bottom of the right side baffle 2 are respectively vertically provided with a right front upper positioning hole 22 and a right front lower positioning hole (not shown in the figure), the right front upper positioning hole 22 and the right front lower positioning hole are both connected to the right front embedding groove 21, the rear side of the top of the right side baffle 2 and the rear side of the bottom of the right side baffle 2 are respectively vertically provided with a right rear upper positioning hole 23 and a right rear lower positioning hole (not shown in the figure), the right rear upper positioning hole 23 and the right rear lower positioning hole are both connected to the right rear embedding groove.

[0054] With the above-mentioned arrangement, an extension plate can be installed before and after the left side baffle 1 by an embedding method through the left front embedding groove 11 and the left rear embedding groove, and an extension plate can be installed before and after the right side baffle 2 by an embedding method through the right front embedding groove 21 and the right rear embedding groove, thereby extending the support length. The embedded extension plate can be fixed by fixing screws through the left front upper positioning hole 12 and the left front lower positioning hole, the left rear upper positioning hole 13 and the left rear lower positioning hole, the right front upper positioning hole 22 and the right front lower positioning hole, and the right rear upper positioning hole 23 and the right rear lower positioning hole, thereby improving the assembly stability.

[0055] When in use, taking the pipe trench in the foundation pit set along the front and rear directions as an example, the utility model is placed in the pipe trench in the foundation pit, so that the left baffle 1 and the right baffle 2 are adjacent to the left and right walls of the pipe trench respectively, and the upper adjusting rod 32 and the lower adjusting rod 33 are driven vertically away from each other by the adjusting device 31, so that the upper adjusting rod 32 moves up and the lower adjusting rod 33 moves down, thereby causing the right end of the front upper left connecting rod 41, the left end of the front upper right connecting rod 42, the right end of the rear upper left connecting rod 51 and the left end of the rear upper right connecting rod 52 to move up, and the right end of the front lower left connecting rod 43, the left end of the front lower right connecting rod 44, the right end of the rear lower left connecting rod 53 and the left end of the rear lower right connecting rod 54 to move down, stretching the left baffle 1 and the right baffle 2, so that the left baffle 1 and the right baffle 2 are respectively against the left and right walls of the pipe trench, to achieve support.

[0056] When storage is required, the upper adjusting rod 32 and the lower adjusting rod 33 are driven vertically toward each other by the adjusting device 31, so that the upper adjusting rod 32 moves downward and the lower adjusting rod 33 moves upward, thereby causing the right end of the front upper left connecting rod 41, the left end of the front upper right connecting rod 42, the right end of the rear upper left connecting rod 51 and the left end of the rear upper right connecting rod 52 to move downward, and the right end of the front lower left connecting rod 43, the left end of the front lower right connecting rod 44, the right end of the rear lower left connecting rod 53 and the left end of the rear lower right connecting rod 54 to move upward, pulling the left baffle 1 and the right baffle 2 together, so that the left baffle 1 and the right baffle 2 are respectively away from the left wall and the right wall of the pipe channel, and the utility model can be stored, carried and circulated.

[0057] Therefore, the utility model has the following advantages:

[0058] 1. The utility model is provided with an adjustment mechanism, a front folding mechanism and a rear folding mechanism. The adjustment device of the adjustment mechanism can drive the upper adjustment rod and the lower adjustment rod to move closer to or away from each other vertically, thereby pulling together and stretching the left baffle and the right baffle through the front folding mechanism and the rear folding mechanism. When moving together, the utility model shrinks to a flat state to facilitate storage and carrying, and convenient circulation inside the trench. When stretched, the left baffle and the right baffle can respectively abut against the left and right side walls of the trench to achieve support, and the distance between the left baffle and the right baffle can be adjusted according to the width of the trench, so that it is suitable for the protection work of foundation pits of different specifications, improving the convenience of operation.

[0059] 2. The present invention improves the installation stability of the present invention by providing a supporting mechanism.

[0060] 3. The utility model improves the movement stability of the upper adjustment rod and the lower adjustment rod by disposing the front insertion rod and the rear insertion rod, thereby improving the use stability of the utility model.

[0061] In summary, the rotatable trench excavation foundation pit support structure of the utility model is easy to store and unfold, convenient to circulate inside the trench, simple to operate, convenient and flexible to use, ingenious in design, simple in structure, easy to manufacture, low in manufacturing cost, and suitable for large-scale promotion and application.

[0062] It can be seen that the purpose of this utility model has been fully and effectively achieved. The functional and structural principles of this utility model have been demonstrated and explained in the embodiments. Without departing from the principles described, the embodiments may be modified in any way. Therefore, this utility model includes all modified embodiments based on the spirit and scope of the claims.

Claims

1. A revolvable pipe trench excavation foundation pit support structure, comprising a left baffle and a right baffle, wherein the left baffle and the right baffle are both arranged vertically and in a front-to-back direction and are spaced apart from each other on the left and right sides, characterized in that: The recyclable pipe trench excavation foundation pit support structure further includes an adjustment mechanism, a front folding mechanism and a rear folding mechanism, wherein: The adjustment mechanism includes an adjustment device, an upper adjustment rod and a lower adjustment rod, wherein the upper adjustment rod and the lower adjustment rod are both arranged along the front-to-back direction and spaced apart from each other up and down and are both located between the left baffle and the right baffle, and the adjustment device is respectively connected to the middle portion of the upper adjustment rod and the middle portion of the lower adjustment rod for driving the upper adjustment rod and the lower adjustment rod to vertically move closer to or away from each other, thereby adjusting the vertical spacing between the upper adjustment rod and the lower adjustment rod; The front folding mechanism includes a front upper left connecting rod, a front upper right connecting rod, a front lower left connecting rod and a front lower right connecting rod, the front upper left connecting rod and the front upper right connecting rod are both inclined along the left and right directions and are arranged in an inverted eight shape with each other along the left and right directions and are respectively located between the left baffle and the front end of the upper adjustment rod and between the front end of the upper adjustment rod and the right baffle, the left end and the right end of the front upper left connecting rod are respectively rotatably connected to the left baffle and the front end of the upper adjustment rod around the front and rear directions, and the left end and the right end of the front upper right connecting rod are respectively rotatably connected to the left baffle and the front end of the upper adjustment rod around the front and rear directions The front end of the upper adjusting rod and the right side baffle, the front lower left connecting rod and the front lower right connecting rod are all inclined along the left and right directions and are arranged in an eight-shaped shape with each other along the left and right directions and are respectively located between the left baffle and the front end of the lower adjusting rod and between the front end of the lower adjusting rod and the right side baffle, the left end and the right end of the front lower left connecting rod are respectively rotatable about the front and rear directions to connect the left baffle and the front end of the lower adjusting rod, and the left end and the right end of the front lower right connecting rod are respectively rotatable about the front and rear directions to connect the front end of the lower adjusting rod and the right side baffle; The rear folding mechanism comprises a rear upper left connecting rod, a rear upper right connecting rod, a rear lower left connecting rod and a rear lower right connecting rod. The rear upper left connecting rod and the rear upper right connecting rod are both inclined along the left and right directions and are arranged in an inverted eight shape with each other along the left and right directions and are respectively located between the left baffle and the rear end of the upper adjusting rod and between the rear end of the upper adjusting rod and the right baffle. The left end and the right end of the rear upper left connecting rod are respectively rotatably connected to the left baffle and the rear end of the upper adjusting rod around the front and rear directions, and the left end and the right end of the rear upper right connecting rod are respectively rotatably connected to the left baffle and the rear end of the upper adjusting rod around the front and rear directions The rear end of the upper adjusting rod and the right side baffle are connected, the rear lower left connecting rod and the rear lower right connecting rod are both inclined along the left and right directions and arranged in an eight-shaped shape with each other along the left and right directions and are respectively located between the left side baffle and the rear end of the lower adjusting rod and between the rear end of the lower adjusting rod and the right side baffle, the left end and the right end of the rear lower left connecting rod are respectively rotatable around the front and rear directions to connect the left side baffle and the rear end of the lower adjusting rod, and the left end and the right end of the rear lower right connecting rod are respectively rotatable around the front and rear directions to connect the rear end of the lower adjusting rod and the right side baffle.

2. The recyclable pipe trench excavation foundation pit support structure according to claim 1 is characterized in that: The adjusting device includes an adjusting stud, which is vertically arranged. The thread rotation direction of the upper part of the adjusting stud and the thread rotation direction of the lower part of the adjusting stud are opposite. The upper part of the adjusting stud and the lower part of the adjusting stud are respectively vertically penetrated and threadedly engaged with the middle part of the upper adjusting rod and the middle part of the lower adjusting rod.

3. The recyclable pipe trench excavation foundation pit support structure according to claim 2, characterized in that: The adjusting device further comprises a top adjusting sleeve, which is arranged horizontally and vertically sleeved on the upper end of the adjusting stud and is located above the middle portion of the upper adjusting rod.

4. The recyclable pipe trench excavation foundation pit support structure according to claim 2, characterized in that: The adjusting device further comprises a middle adjusting sleeve, which is arranged horizontally and vertically sleeved on the middle part of the adjusting stud.

5. The recyclable pipe trench excavation foundation pit support structure according to claim 2, characterized in that: The recyclable pipe trench excavation foundation pit support structure also includes a supporting mechanism, which includes a chassis and anchor nails. The chassis is horizontally arranged, and the lower end of the adjusting stud is horizontally rotatably arranged on the chassis. The anchor nails are vertically arranged and downwardly arranged. The anchor nails are located under the chassis and connected to the chassis. There are multiple anchor nails, and the multiple anchor nails are horizontally spaced apart from each other.

6. The recyclable pipe trench excavation foundation pit support structure according to claim 5, characterized in that: The number of the anchor nails is 5, 4 of which are located at the 4 corners of a rectangle, and the remaining anchor nail is located in the middle of the 4 anchor nails.

7. The recyclable pipe trench excavation foundation pit support structure according to claim 5, characterized in that: The support mechanism further comprises a bearing, which is horizontally arranged on the chassis, and the lower end of the adjusting stud is vertically inserted into the bearing.

8. The recyclable pipe trench excavation foundation pit support structure according to claim 1, characterized in that: The front folding mechanism also includes a front insertion rod, which is vertically arranged. The upper and lower parts of the front insertion rod are respectively vertically movably inserted into the front end of the upper adjustment rod and the front end of the lower adjustment rod, and the lower end of the front insertion rod gradually becomes pointed from top to bottom.

9. The recyclable pipe trench excavation foundation pit support structure according to claim 1, characterized in that: The front folding mechanism also includes a rear insertion rod, which is vertically arranged. The upper and lower parts of the rear insertion rod are respectively vertically movably inserted into the rear ends of the upper adjustment rod and the lower adjustment rod, and the lower end of the rear insertion rod gradually becomes pointed from top to bottom.

10. The recyclable pipe trench excavation foundation pit support structure according to claim 1, characterized in that: The front side surface and the rear side surface of the left side baffle are respectively vertically provided with a left front embedding groove and a left rear embedding groove, the front side of the top of the left baffle and the front side of the bottom of the left baffle are respectively vertically provided with a left front upper positioning hole and a left front lower positioning hole, the left front upper positioning hole and the left front lower positioning hole are both connected to the left front embedding groove, the rear side of the top of the left baffle and the rear side of the bottom of the left baffle are respectively vertically provided with a left rear upper positioning hole and a left rear lower positioning hole, and the left rear upper positioning hole and the left rear lower positioning hole are both connected to the left rear embedding groove; The front side surface and the rear side surface of the right side baffle are respectively vertically provided with a right front embedding groove and a right rear embedding groove, the front side of the top of the right side baffle and the front side of the bottom of the right side baffle are respectively vertically provided with a right front upper positioning hole and a right front lower positioning hole, the right front upper positioning hole and the right front lower positioning hole are both connected to the right front embedding groove, the rear side of the top of the right side baffle and the rear side of the bottom of the right side baffle are respectively vertically provided with a right rear upper positioning hole and a right rear lower positioning hole, the right rear upper positioning hole and the right rear lower positioning hole are both connected to the right rear embedding groove.

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