CN115492123B - A foundation pit support protection structure - Google Patents

Abstract

The invention discloses a foundation pit support and protection structure, which comprises a foundation pit body and a support box, the upper side wall of the support box is rotatably connected with a support plate, and the support plate and the inner bottom of the support box There is an adjustment mechanism between the walls, and the inner bottom wall of the support box and the lower side wall of the support plate are fixedly connected with hollow disks, and each hollow disk is equipped with a reinforcement mechanism, and the support plate The lower side wall is fixedly connected with a limit block, and a limit mechanism is arranged inside the limit block. The present invention adjusts and fixes the angle of the support plate, thereby adjusting its own angle according to the angle of the foundation pit body, and has a wide range of use. At the same time, it uses a plurality of screws to respectively fix the inner wall and bottom of the foundation pit, which improves the stability of the device. The stability of the bottom when supported.

Description

A foundation pit support protection structure

technical field

The invention relates to the technical field of foundation pit support, in particular to a foundation pit support protection structure.

Background technique

At present, in the construction process, it is often necessary to excavate the corresponding foundation pit according to the engineering quantity. The foundation pit is a temporary project. The safety factor during the operation process, to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit, it is necessary to adopt support, reinforcement and protection measures for the side wall of the foundation pit and the surrounding environment. The foundation pit support is to ensure the stability and safety around the foundation pit during underground construction. It is to temporarily reinforce and support the foundation pit. There are many types of foundation pit support and a wide range of applications. Among them, the protective structure is a major role. Huge, most existing protective structures for foundation pit support still have many defects in application, and a protective structure for foundation pit support with high practicability is needed.

The protection structure of the traditional foundation pit support cannot adjust its own angle according to the angle of the foundation pit during application, which has limitations in application, and at the same time, the bottom is fixed and unstable during support.

Contents of the invention

The purpose of the present invention is to solve the problems in the background technology, and propose a foundation pit support protection structure.

In order to achieve the above object, the present invention adopts the following technical solutions:

A foundation pit support and protection structure, comprising a foundation pit body and a support box, the upper side wall of the support box is rotatably connected with a support plate, and a support plate is arranged between the support plate and the inner bottom wall of the support box There is an adjustment mechanism, the inner bottom wall of the support box and the lower side wall of the support plate are fixedly connected with hollow disks, each of the hollow disks is equipped with a reinforcement mechanism, and the lower side wall of the support plate Fixedly connected to the limit block, the limit block is provided with a limit mechanism;

The adjustment mechanism includes two support rods 1 that are rotatably connected to the inner bottom wall of the support box, and the upper ends of the two support rods 1 are slidably inserted with a support rod 2 that is rotatably connected to the lower side wall of the support plate. A connecting rod that movably runs through the side walls of the two supporting rods is fixedly connected between the two supporting rods. The outer wall of the connecting rod is movable and provided with a bidirectional threaded rod, and the outer wall of the connecting rod is fixedly sleeved with a The fixed plates are movable embedded in the two ends of the two-way threaded rods, the outer walls of the two fixed plates are slidingly inserted with two limit rods, and the ends of the two limit rods on the same side are fixed together It is connected with a fastening sleeve which is slidingly sleeved on the outer wall of the two-way threaded rod.

Preferably, a positioning rod is slidably inserted on the left side of the limiting block, a positioning groove matching the positioning rod is opened on the side wall of the limiting block, and a spring is fixedly connected between the positioning groove and the positioning rod .

Preferably, the reinforcement mechanism includes gear one installed on the inner bottom wall of the hollow disc, the upper side wall of the gear is fixedly connected with a five-edge tube, and the upper end of the five-edge tube is slidably inserted with a five-edge block. The upper side wall of the five-edge block is fixedly connected with a bolt threaded on the upper side wall of the hollow disc, and both sides of the first gear are meshed with the second gear, and each upper side wall of the second gear is fixedly connected with a rectangular cylinder A rectangular block is slidably attached to the top of the rectangular cylinder, and the lower side wall of the rectangular block is fixedly connected with a screw threaded on the inner bottom wall of the hollow disc.

Preferably, a plurality of universal wheels are installed on the inner top wall of the support box.

Preferably, a turntable is provided on the fixing sleeve of the middle outer wall of the two-way threaded rod.

Preferably, a slide groove matched with the connecting rod is opened on one opposite side wall of the two struts.

Preferably, frosted layers are provided on the opposite side walls of the two fastening sleeves.

Compared with the existing technology, the advantages of this foundation pit support and protection structure are:

1. Set up two-way threaded rods, place the support box on the foundation pit body, and then turn over the support plate until it fits the inner wall of the foundation pit body. During this process, it can cooperate with the rotation of each support rod and the support box The connection point cooperates with the rotation connection point of each strut 2 and the support plate, so that each strut 2 is stretched in the corresponding strut 1, and the angle adjustment of the support plate is realized, so that the foundation pit can The angle of the body adjusts its own angle, and the range of use is large. At this time, turning the turntable makes the two-way threaded rod rotate. Because the two fixed plates limit the two-way threaded rod, the position of the two-way threaded rod will not change, and because the fixed plate and The locking of the limit rod prevents each fastening sleeve from rotating, so that under the rotation of the bidirectional threaded rod, the two fastening sleeves move axially opposite each other until they respectively press against the two support rods—the opposite The side wall on one side makes the support rod 1 and the support rod 2 relatively fixed, thereby realizing the angle fixation of the support plate;

2. Set the screws. After the angle adjustment of the support plate is completed, turn the two bolts in turn to make them move down in a spiral under the premise of threaded connection with the hollow disc, so as to drive the five-edged block to move down in a spiral, and then pass through the five-edged block. The engagement with the five-edge tube can drive the gear to rotate through the five-edge tube. At the same time, the five-edge block can also move in the five-edge tube to match the movement of the five-edge block. When the gear rotates, it can drive multiple gears that mesh with it. The second gear rotates to make the rectangular cylinder rotate, and uses its engagement with the rectangular block to make the rectangular block and the screw rotate synchronously, and on the premise that the screw is screwed to the lower side wall of the hollow disc, the spiral outward movement of each screw is realized , until it is inserted into the bottom and inner wall of the foundation pit body, so as to fix the device and improve the stability of the bottom when supporting;

3. Set the positioning rod. When the support plate is turned over to be perpendicular to the support box, the positioning rod can automatically pop up under the elastic force of the spring until it fits the inner wall of the support box, thereby restricting the rotation of the support plate and further improving It ensures the firmness of the support plate when supporting and protecting the foundation pit;

To sum up, the present invention adjusts and fixes the angle of the support plate, thereby adjusting its own angle according to the angle of the foundation pit body, and has a wide range of applications. At the same time, multiple screws are used to fix the inner wall and bottom of the foundation pit respectively , which improves the stability of the bottom of the device when it is supported.

Description of drawings

Fig. 1 is the structural representation of a kind of foundation pit support protection structure that the present invention proposes;

Fig. 2 is the local structure schematic diagram of a kind of foundation pit support protection structure that the present invention proposes;

Fig. 3 is a side view sectional view of the adjustment mechanism of the side column in a foundation pit support and protection structure proposed by the present invention;

Fig. 4 is a side view of an adjustment mechanism in a foundation pit support protection structure proposed by the present invention;

Fig. 5 is a sectional view of a hollow disk in a foundation pit support protection structure proposed by the present invention;

Fig. 6 is a top view of a hollow disk of a foundation pit support and protection structure proposed by the present invention.

In the figure: 1 foundation pit body, 2 support boxes, 3 support plates, 4 hollow disks, 5 limit blocks, 6 support rod 1, 7 support rod 2, 8 connecting rods, 9 two-way threaded rods, 10 fixing plates, 11 fastening sleeve, 12 limit rod, 13 turntable, 14 positioning rod, 15 spring, 16 gear 1, 17 pentagonal tube, 18 pentagonal block, 19 bolt, 20 gear 2, 21 rectangular tube, 22 rectangular block, 23 Screws, 24 universal wheels.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

Referring to Figures 1-6, a foundation pit support and protection structure includes a foundation pit body 1 and a support box 2. A plurality of universal wheels 24 are installed on the inner top wall of the support box 2, which facilitates the movement and transportation of the device.

The upper side wall of the support box 2 is rotatably connected with a support plate 3, and an adjustment mechanism is provided between the support plate 3 and the inner bottom wall of the support box 2, and the adjustment mechanism includes a rotating connection on the inner bottom wall of the support box 2. The two struts one 6, the upper ends of the two struts one 6 are slidingly inserted with the two struts 7 that are rotatably connected to the lower side wall of the support plate 3, and the two struts two 7 are jointly fixedly connected with movable The connecting rod 8 that runs through the side walls of the two supporting rods 7, and the opposite side walls of the two supporting rods 16 are provided with a chute that matches the connecting rod 8. When the two supporting rods 16 are stretched Available for connecting rod 8 to slide simultaneously in two slide grooves.

The movable cover of the outer wall of the connecting rod 8 is provided with a two-way threaded rod 9, and the fixed sleeve of the middle part of the two-way threaded rod 9 is provided with a rotating disk 13, which is convenient for rotating the two-way threaded rod 9.

The outer wall fixing sleeve of the connecting rod 8 is provided with a fixed plate 10 movably embedded in the two ends of the two-way threaded rod 9, and the outer walls of the two fixed plates 10 are all slidably inserted with two limit rods 12, which are positioned at the two limit rods on the same side. The ends of the rod 12 are all fixedly connected with the fastening sleeve 11 which is slidingly sleeved on the outer wall of the two-way threaded rod 9, and the opposite side walls of the two fastening sleeves 11 are provided with a frosted layer, which can increase the fastening effect. The frictional force of the sleeve 11 when it is pressed against the outer wall of the strut 6 improves the firmness of the fastening sleeve 11 when it is pressed against the strut 6. When in use, the support box 2 is placed on the foundation pit body 1, Then overturn the support plate 3 to be attached to the inner wall of the foundation pit body 1. In this process, the rotation connection point of each strut one 6 and the support box 2 can be matched with each strut two 7 and the support plate 3 The cooperation of the rotation connection point of each strut 2 makes each strut 2 7 stretch in the corresponding strut 1 6 to realize the angle adjustment of the support plate 3, so that the angle of itself can be adjusted according to the angle of the foundation pit body 1, using The range is relatively large. At this time, turning the turntable 13 makes the two-way threaded rod 9 rotate, and the position of the two-way threaded rod 9 will not change due to the spacing of the two fixed plates 10 to the two-way threaded rod 9, and because the fixed plate 10 and the limit The engagement of the rod 12 prevents each fastening sleeve 11 from rotating, so that under the rotation of the two-way threaded rod 9, the two fastening sleeves 11 move axially opposite each other until they respectively press against the two struts one by one. 6 opposite side walls, so that the first strut 6 and the second strut 7 are relatively fixed, thereby realizing the angle fixation of the support plate 3.

The inner bottom wall of the support box 2 and the lower side wall of the support plate 3 are fixedly connected with hollow disks 4, and each hollow disk 4 is provided with a reinforcement mechanism, and the reinforcement mechanism includes gears installed on the inner bottom wall of the hollow disk 4. One 16, the upper side wall of the gear one 16 is fixedly connected with a five-edge tube 17, and the upper end of the five-edge tube 17 is slidably inserted with a five-edge block 18, and the upper side wall of the five-edge block 18 is fixedly connected with a threaded connection on the hollow disc 4 The bolt 19 on the upper side wall and the two sides of the gear one 16 are meshed with the second gear 20, and the upper side wall of each gear two 20 is fixedly connected with a rectangular cylinder 21, and the top of the rectangular cylinder 21 is slidingly fitted with a rectangular block 22, The lower side wall of the rectangular block 22 is fixedly connected with a screw 23 threaded on the inner bottom wall of the hollow disc 4. After the angle adjustment of the support plate 3 is completed, turn two bolts 19 in turn to make it threaded with the hollow disc 4. Under the premise of connection, the spiral moves downward, thereby driving the five-edge block 18 to move downward in a spiral, and then through the engagement of the five-edge block 18 and the five-edge tube 17, the five-edge tube 17 can drive the gear one 16 to rotate, and at the same time, the five-edge block 18 Can also move in the five-edge tube 17 to match the movement of the five-edge block 18, when the gear one 16 rotates, it can drive a plurality of gears two 20 meshed with it to rotate, so that the rectangular cylinder 21 rotates, and utilizes it and the rectangular block 22 The engagement of the rectangular block 22 and the screw 23 rotates synchronously, and on the premise that the screw 23 is screwed to the lower side wall of the hollow disc 4, the screw 23 moves outward until it is inserted into the bottom of the foundation pit body 1 And the inner wall, so as to fix the device and improve the stability of the bottom when supporting.

The lower side wall of the support plate 3 is fixedly connected with the limit block 5, and the limit block 5 is provided with a limit mechanism. The wall is provided with a positioning groove matched with the positioning rod 14, and a spring 15 is fixedly connected between the positioning groove and the positioning rod 14. Under the elastic force, it will pop up automatically until it fits the inner wall of the support box 2, thereby restricting the rotation of the support plate 3, and further improving the firmness of the support plate 3 when supporting and protecting the foundation pit.

It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise specified and limited. For example, it may be welding, gluing, or integral molding and other common means known to those skilled in the art.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (5)

1. A foundation pit support and protection structure, comprising a foundation pit body (1) and a support box (2), is characterized in that, the upper side wall of the support box (2) is rotatably connected with a support plate (3 ), an adjustment mechanism is provided between the support plate (3) and the inner bottom wall of the support box (2), and the inner bottom wall of the support box (2) and the lower side of the support plate (3) The walls are fixedly connected with hollow disks (4), each of the hollow disks (4) is provided with a reinforcement mechanism, the lower side wall of the support plate (3) is fixedly connected with a limit block (5), and the A limit mechanism is arranged in the limit block (5); The adjustment mechanism includes two struts one (6) that are rotatably connected to the inner bottom wall of the support box (2), and the upper ends of the two struts one (6) are slidably inserted to be rotatably connected to the support. The two braces (7) on the lower side wall of the plate (3), and the two braces (7) are jointly fixedly connected with a connecting rod (8) that runs through the side walls of the two braces (7), The outer wall of the connecting rod (8) is movably sleeved with a two-way threaded rod (9), and the outer wall of the connecting rod (8) is fixedly sleeved with fixed plates (10) that are movably embedded at both ends of the two-way threaded rod (9). , the outer walls of the two fixed plates (10) are slidingly inserted with two limit rods (12), and the ends of the two limit rods (12) on the same side are jointly fixedly connected with A fastening sleeve (11) slidingly sleeved on the outer wall of the two-way threaded rod (9); The position-limiting mechanism includes a positioning rod (14) on the left side that is slidably inserted into the position-limiting block (5), and the side wall of the position-limiting block (5) is provided with a positioning groove that matches the positioning rod (14). A spring (15) is fixedly connected between the positioning groove and the positioning rod (14); The reinforcement mechanism includes a gear one (16) installed on the inner bottom wall of the hollow disc (4), the upper side wall of the gear one (16) is fixedly connected with a five-edged tube (17), and the five-edged tube (17) ) is slidingly inserted with a five-edge block (18), and the upper side wall of the five-edge block (18) is fixedly connected with a bolt (19) that is threaded on the upper side wall of the hollow disc (4). Both sides of (16) are meshed with gear two (20), and the upper side wall of each said gear two (20) is fixedly connected with a rectangular cylinder (21), and the top of said rectangular cylinder (21) slides and fits There is a rectangular block (22), and the lower side wall of the rectangular block (22) is fixedly connected with a screw (23) threaded on the inner bottom wall of the hollow disc (4). 2. A foundation pit support and protection structure according to claim 1, characterized in that a plurality of universal wheels (24) are installed on the inner top wall of the support box (2). 3. A support and protection structure for foundation pit according to claim 1, characterized in that, the middle outer wall of the two-way threaded rod (9) is fixedly sleeved with a turntable (13). 4. A foundation pit support and protection structure according to claim 1, characterized in that, the opposite side walls of the two struts one (6) are provided with a matching connecting rod (8). chute. 5. A foundation pit support and protection structure according to claim 1, characterized in that, the side walls of the opposite sides of the two fastening sleeves (11) are provided with frosted layers.

Images