Highway foundation pit safety protection equipment

Abstract

The application relates to the expressway technical field, in particular to expressway foundation pit safety protection equipment, which comprises a supporting mechanism, a connecting mechanism, an extension mechanism and a slope protection mechanism; the supporting mechanism comprises a base plate, moving wheels, supporting legs and a mounting plate; the connecting mechanism is arranged at the center of the left rear base block, can drive the remaining three base blocks to move to the preset position with a preset fastening force, and can complete automatic winding work when being disassembled and stored; the extension mechanism comprises a stand, a protection rod, a reflective sticker and a warning device; the warning device is arranged to emit photoelectric alarm and voice reminder when the staff is at a preset distance position from the protection rod; the slope protection mechanism comprises a waterproof oilcloth and a pressing piece; the pressing piece is arranged to complete the covering and protection work of the waterproof oilcloth on the foundation pit slope surface with a preset pulling and pressing force when the waterproof oilcloth is unfolded. The application can realize further safety protection of the foundation pit itself on the basis of convenient, efficient and intelligent peripheral foundation pit safety protection.

Description

Technical Field

[0001] This invention relates to the field of highway engineering technology, and specifically to a safety protection device for highway foundation pits. Background Technology

[0002] Highway engineering refers to the surveying, measurement, design, construction, maintenance, and management of highway structures. Highway engineering structures include: roadbed, pavement, bridges, culverts, tunnels, drainage systems, safety protection facilities, landscaping, traffic monitoring facilities, and other service facilities. Road paving machinery is developing towards automated, on-site processing, increased utilization of waste materials, simplified procedures, and high-powered, large-scale machinery capable of completing tasks in one go. In highway construction, the safety protection of excavation pits is a necessary procedure; however, traditional pit protection uses brick wall structures, which are highly stable but costly, difficult to recycle and reuse, and have poor performance.

[0003] The publicly authorized patent "CN 111691744 B, a foundation pit protection device" describes that "the present invention relates to the field of foundation pit protection technology, and particularly to a foundation pit protection device, including an extendable fixed bracket (1), a guardrail assembly (2) and an access control device (3). The bottom of the fixed bracket (1) is provided with a fixed plate (111), and the fixed plate (111) is provided with a rotatable functional rod (111f), which can be used for fixing or moving. The guardrail assembly (2) is provided with a solar power generation panel (16), which can provide power to the access control device (3) and other electrical devices. In addition, a connecting component (4) is provided between the fixed brackets (1) and between the fixed brackets (1) and the access control device (3). The connection and disconnection of the connecting component (4) is very convenient and easy for operators to operate. The present invention solves the problems of single function, poor stability, difficulty in transportation and stacking."

[0004] However, the existing foundation pit protection devices still have the following drawbacks: First, the structural design is unreasonable. Although it solves the problem of difficulty in transportation to some extent, at highway construction sites, foundation pit protection also needs to achieve efficient mobility while ensuring good stability, so as to quickly complete the relocation and foundation pit enclosure installation work. Second, the existing foundation pit protection devices have a simple structure but are complex to operate. The split structure is inconvenient to carry. Specifically, the split connection and installation of connecting components is time-consuming and labor-intensive. Due to the different shapes and sizes of foundation pits, the number of fixed frames and connecting components that need to be carried and assembled varies, which seriously restricts the efficiency of foundation pit protection installation at the construction site. Furthermore, the safety warnings for foundation pit protection are not intelligent enough, and it is impossible to achieve effective and intelligent safety warning and reminder functions while efficiently and quickly completing the foundation pit enclosure installation, thereby effectively preventing personnel from accidentally approaching and causing safety accidents. Third, the existing foundation pit protection devices have a single function. The protection of foundation pits focuses on two aspects: one is to protect the foundation pit to prevent personnel from accidentally entering and causing safety accidents, which mainly targets external factors related to personnel safety. Secondly, there is the issue of safety protection for the foundation pit itself. Foundation pits are deep pits excavated by mechanical equipment, and their slopes are highly susceptible to impact from rainwater, leading to slope collapse, soil subsidence, and in severe cases, halting construction. Existing foundation pit protection devices cannot provide convenient, efficient, and intelligent external safety protection for the foundation pit itself. Therefore, a new type of highway foundation pit safety protection equipment is needed. Summary of the Invention

[0005] To address the shortcomings and deficiencies of existing technologies used for highway engineering foundation pit protection, this invention provides a highway foundation pit safety protection device with a reasonable structural design, easy mobility, and the ability to quickly achieve safe enclosure operations. This device provides convenient, efficient, and intelligent external foundation pit safety protection while further enhancing the safety of the foundation pit itself.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A highway foundation pit safety protection device, comprising a support mechanism, a connecting mechanism, a telescopic mechanism, and a slope protection mechanism;

[0008] The support mechanism includes a base plate, movable wheels, support legs, and a mounting plate; the base plate is horizontally distributed left and right and is divided into four equal base blocks; there are four movable wheels, each mounted on one of the base blocks; there are also four support legs, each mounted on one of the base blocks, and the support legs are retractable; the mounting plate is fixedly mounted on the support legs, and has mounting holes on its outer edge to fix the position by connecting pre-embedded fastening bolts;

[0009] A connecting mechanism is provided between every two adjacent base blocks. The connecting mechanism is configured with the base block at the left rear as the center, which can drive the other three base blocks to move to a preset position with a preset fastening force, and complete the automated winding operation when disassembling and storing the protective device.

[0010] The telescopic mechanism includes a column, a guardrail, reflective stickers, and a warning device; the column is mounted on the base block, and the two are rotatable but not movable relative to each other; the guardrails are multiple hinged and crisscrossed, with the outermost guardrails hinged to the column; the reflective stickers are mounted on the guardrails and are multiple evenly distributed; the warning device is configured to issue a photoelectric alarm and a voice reminder when a worker is at a preset distance from the guardrail.

[0011] The slope protection mechanism includes a waterproof tarpaulin and a clamping component; the base block has a cavity, and one end of the waterproof tarpaulin is fixedly connected to the side wall of the cavity. Under normal conditions, the waterproof tarpaulin is neatly folded and stored in the cavity; the clamping component is configured to complete the covering and protection of the slope of the foundation pit with a preset pulling and clamping force when the waterproof tarpaulin is unfolded.

[0012] As a preferred technical solution: the support leg includes a connecting rod and a connecting sleeve; the connecting rod is vertically distributed on the base plate, and the connecting sleeve is disposed on the mounting plate, and the two are allowed to rotate relative to each other but cannot move relative to each other; the connecting sleeve and the connecting rod are allowed to rotate relative to each other.

[0013] A further preferred technical solution: the connecting rod is also provided with scale lines.

[0014] A further preferred technical solution: The connecting mechanism includes a rotating motor, a rotating shaft, a winding reel, a wire rope, and a buckle; the base block is provided with an installation groove, the rotating motor is disposed in the base block, the rotating shaft is rotatably disposed in the installation groove, the winding reel is sleeved and installed on the rotating shaft, one end of the wire rope is disposed on the winding reel, and the other end is connected to the buckle through a hook, and the buckle is disposed on the adjacent base block on the other side.

[0015] A further preferred technical solution: Each of the base blocks is provided with a rotating motor and a buckle, and the hooks of the four sets of connecting mechanisms are connected to the buckles to form a closed loop connected end to end, wherein the shape of the closed loop can be any one of rectangle, square, trapezoid, or triangle.

[0016] A further preferred technical solution: the winding reel, wire rope, hook and buckle of each set of the connecting mechanism are at least one set that are matched and installed.

[0017] A further preferred technical solution: the warning device includes an infrared detection sensor and an alarm; the infrared detection sensor is disposed on the protective rod and is a plurality of sensors evenly distributed thereon; the alarm is disposed on the column and is an audible and visual alarm; the alarm is connected to the infrared detection sensor by signal.

[0018] A further preferred technical solution: the clamping component further includes a tensioning structure, which includes an elastic rope, a connecting hook, and a buckle; one end of the elastic rope is fixedly set to the buckle, and the other end is connected to the waterproof tarpaulin through the connecting hook; there are multiple buckles, which are respectively set on the wire rope to form the waterproof tarpaulin in an unfolded state with a preset tension force.

[0019] A further preferred technical solution: The clamping component further includes a counterweight structure and a drive motor. The counterweight structure includes a counterweight block, a fastening rope, and a turntable. The drive motor is mounted on the base block, and the turntable is sleeved and installed on the output shaft of the drive motor. One end of the fastening rope is connected to the turntable, and the other end is connected to the counterweight block, so as to perform a pressing operation on the waterproof tarpaulin with a preset clamping force.

[0020] A further preferred technical solution: at least one set of the weight-bearing structures is provided in each of the base blocks.

[0021] The advantages of this invention compared to the prior art are: the structure of the foundation pit safety protection equipment is reasonably designed. By setting up moving wheels and support legs, it can be retracted as a whole when not in the foundation pit protection state, with high space utilization and easy storage; at the same time, by connecting and fixing with pre-embedded anchor bolts, it not only enhances the stability of the installation and support of the protection equipment, but also ensures high mobility, making it more practical on the construction site.

[0022] This foundation pit safety protection equipment further adopts a modular, split-type carrier structure. Each base block is movable and usable. Through a connecting mechanism, the left rear base block is used as the center, driving the other three base blocks to a preset position (the pre-embedded bolt connection point of the pile foundation at other points on the edge of the foundation pit) with a preset fixing force (provided by steel wire rope). When the foundation pit protection work is completed and needs to be disassembled, the protective equipment is automatically retrieved by rotating the motor, saving time and labor. At the same time, the four sets of connecting mechanisms and base blocks form a closed loop, which can be rectangular, square, trapezoidal, or triangular in shape. It is widely applicable to foundation pit safety protection operations of different sizes and shapes in highway engineering, and has greater market promotion value. Furthermore, it is equipped with columns, guardrails, reflective stickers, and warning devices to ensure sufficient retractable safety protection surface. When the workers are far from the preset distance of the guardrail, photoelectric alarms and voice reminders are issued, making it more intelligent and automated, and enhancing the effectiveness of foundation pit safety protection.

[0023] The foundation pit safety protection equipment further incorporates waterproof tarpaulins and clamping components on the foundation blocks. Under normal conditions, the waterproof tarpaulin is neatly folded and stored in the cavity for later use. The spatial structure design is reasonable, avoiding the time-consuming and laborious problem of manual carrying. When encountering rain or continuous rainy weather, and the waterproof tarpaulin needs to be unfolded, the tarpaulin is first taken out and unfolded to fit the width of the foundation pit. Then, through the cooperation of elastic ropes, connecting hooks, and buckles, the stability of the foundation connection is achieved. At the same time, through the cooperation of counterweights, fastening ropes, and turntables, the waterproof tarpaulin is used to cover and protect the slope of the foundation pit with a preset tension and clamping force, providing enhanced protection for the foundation pit. Ultimately, it achieves the goal of further protecting the foundation pit itself on the basis of convenient, efficient, and intelligent external foundation pit safety protection. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a perspective view of the overall structure of a highway foundation pit safety protection device according to the present invention;

[0026] Figure 2 for Figure 1 Side view in the middle;

[0027] Figure 3 This is a partial structural diagram of the connection structure of a highway foundation pit safety protection device according to the present invention;

[0028] Figure 4 This is a partial three-dimensional view of a highway foundation pit safety protection device according to the present invention;

[0029] Figure 5 This is a partial structural diagram of the slope protection mechanism of a highway foundation pit safety protection device according to the present invention;

[0030] Figure 6 This is a perspective view of the tension structure of a highway foundation pit safety protection device according to the present invention;

[0031] Figure 7 This is a perspective view of the counterweight structure of a highway foundation pit safety protection device according to the present invention;

[0032] Figure 8 This is a schematic diagram of the retracted state of a highway foundation pit safety protection device according to the present invention;

[0033] Figure 9 for Figure 8 Side view.

[0034] In the diagram: 1-Support mechanism; 101-Base plate; 102-Moving wheel; 103-Support leg; 104-Mounting plate; 105-Base block; 106-Mounting hole; 107-Connecting rod; 108-Connecting sleeve; 109-Scale line; 2-Connecting mechanism; 201-Rotating motor; 202-Rotating shaft; 203-Winding disc; 204-Wire rope; 205-Snap fastener; 206-Mounting groove; 207-Hook; 3-Telescopic mechanism; 301-Column; 302- Protective pole; 303-Reflective tape; 304-Warning device; 305-Infrared detection sensor; 306-Alarm; 4-Slope protection mechanism; 401-Waterproof tarpaulin; 402-Pressure piece; 403-Cavity; 404-Tension structure; 405-Elastic rope; 406-Connecting hook; 407-Ring buckle; 408-Counterweight structure; 409-Drive motor; 410-Counterweight block; 411-Securing rope; 412-Turntable; 413-Positioning plate; 414-Positioning pin. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that, in specific embodiments of the present invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the use of phrases such as "comprising a..." to define an element does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "equipped" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] Example: Figures 1-9 As shown:

[0039] A highway foundation pit safety protection device includes a support mechanism 1, a connecting mechanism 2, a telescopic mechanism 3, and a slope protection mechanism 4. The invention has a reasonable overall structural design, which facilitates movement and quick implementation of safety protection operations around the foundation pit. At the same time, it can further protect the foundation pit itself on the basis of convenient, efficient, and intelligent external foundation pit safety protection, and avoid the phenomenon of foundation pit damage caused by rainwater erosion.

[0040] like Figure 1As shown: In this embodiment, the support mechanism 1 includes a base plate 101, movable wheels 102, support legs 103, and a mounting plate 104. The base plate 101 is horizontally distributed and equally divided into four base blocks 105. There are four movable wheels 102, each installed on one of the base blocks 105; and the movable wheels can be omnidirectional wheels for easy movement. There are also four support legs 103, each set on one of the base blocks 105. Thus, the movable wheels and support legs are matched and distributed at the four corners of the base plate, ensuring sufficient stability and providing a foundation for the subsequent separation of the base blocks. By setting the movable wheel and support leg structure, the entire structure can be retracted in the non-pit protection state, resulting in high space utilization and easy storage; at the same time, by connecting and fixing with pre-embedded anchor bolts, it enhances the stability of the protective equipment installation and ensures efficient mobility, making it more practical on the construction site.

[0041] like Figure 2 As shown: The support leg 103 is telescopic; the mounting plate 104 is fixedly installed on the support leg 103, and has mounting holes 106 on its outer edge for fixing the position by connecting pre-embedded fastening bolts. Cement piles are set at the corner of the foundation pit and pre-embedded fastening bolts are used to provide the connection foundation for the protective equipment. Specifically, the support leg 103 includes a connecting rod 107 and a connecting sleeve 108. The connecting rod 107 is vertically distributed and fixedly installed on the base plate 101, and the connecting sleeve 108 is disposed on the mounting plate 104. The two are connected by a keyway to maintain relative rotation but not relative movement. The connecting sleeve 108 and the connecting rod 107 are allowed to rotate relative to each other. In the normal state, the four base blocks are in a closed state, forming the base plate. This state is also the moving state of the protective equipment. For the specific structure, refer to [reference needed]. Figure 8 and Figure 9 As shown, the contraction of the base blocks is provided by the rotation of the motor driving the winding of the steel wire rope. Therefore, in this contracted movement state, the four base blocks are close to form the substrate, providing sufficient stability. Thus, when adjusting the initial horizontal balance of the substrate, while ensuring the mounting plate is fixed to the pre-embedded fastening bolts, the horizontality of the substrate is adjusted by rotating the connecting sleeve and observing the indicated position of the scale line in real time. A scale line 109 is also provided on the connecting rod 107. In this embodiment, a horizontal detection sensor and indicator light can also be used for automated detection. Both the horizontal detection sensor and indicator light are located on the base block at the left rear. The indicator light is a red-blue indicator light; red indicates that the substrate is uneven, and blue indicates that the substrate is balanced.

[0042] like Figure 1As shown: In this embodiment, a connecting mechanism 2 is provided between every two adjacent base blocks 105. The connecting mechanism 2 is configured with the left rear base block 105 as the center, and can drive the other three base blocks 105 to move to a preset position with a preset clamping force, and complete the automated wire winding operation when disassembling and storing the protective device. The purpose of this setting is that, firstly, after the overall balance of the substrate is adjusted, the central base block is fixed, then the structure of the two base blocks on the right side as a whole is pulled to move along the edge of the pit, and the left front base block is pulled to move synchronously (to complete the fixing of the left front base block and the right rear base block), and then the right front base block is pulled to move to the preset position point to complete the fixing. In this way, the pit enclosure operation is completed, and the stability of the protective device is enhanced.

[0043] Specifically, such as Figure 3 As shown: The connecting mechanism 2 includes a rotating motor 201, a rotating shaft 202, a winding reel 203, a steel wire rope 204, and a buckle 205. The base block 105 has an installation groove 206. The rotating motor 201 is mounted on the base block 105 and is a servo-controlled motor. The rotating shaft 202 is rotatably mounted in the installation groove 206. The winding reel 203 is sleeved and mounted on the rotating shaft 202. One end of the steel wire rope 204 is attached to the winding reel 203, and the other end is connected to the buckle 205 via a hook 207. The diameter of the steel wire rope is 3-5 cm to provide sufficient preload, and the length of the steel wire rope is sufficiently long. For a detailed structure, please refer to [reference needed]. Figure 4 As shown. The buckle 205 is connected to the adjacent base block 105 on the other side via a cable. The connection method of the buckle and the buckle is simple to operate and can meet the situation where there is a slight angled edge in the foundation pit. The width of the winding disc is large enough.

[0044] Reference Figure 4 As shown in the structure, each base block 105 is equipped with a rotating motor 201 and a buckle 205. That is, each base block has two mounting slots, with the opening direction perpendicular. One mounting slot houses the rotating motor, winding disc, and other structures, while the other mounting slot houses the mounting buckle. Thus, in the overall distribution, the hooks 207 and buckles 205 of the four sets of connecting mechanisms 2 form a closed loop. The width of the winding disc is sufficiently large, and the hooks and buckles are movably engaged, allowing for a slight tilt of the wire rope when pulled apart. The shape of this closed loop can be rectangular, square, trapezoidal, or triangular. This design is widely applicable to foundation pits of different shapes and sizes in highway engineering, enhancing its practicality. Each set of connecting mechanisms 2 consists of at least one matching set of winding disc 203, wire rope 204, hook, and buckle 205; this design aims to provide sufficient stability.

[0045] like Figure 4As shown: When installation of protective measures for the foundation pit is required, the rotating motor is turned forward, which in turn unwinds the steel wire rope on the winding reel. This allows workers to easily pull the base block located on the buckle side. When the base block moves to the preset position, the rotating motor is turned off, creating a pre-tight connection between the two fixed base blocks. Simultaneously, when disassembling and storing the protective equipment, the bolt connections of the corresponding base block are unlocked, the rotating motor is turned in reverse, and the winding reel begins to retract and wind the steel wire rope, moving the corresponding base block back to its initial state towards the center base block. This foundation pit safety protection equipment further adopts a modular, split-type carrier structure (i.e., base blocks). Each base block is movable and usable. Through a connecting mechanism, the remaining three base blocks are moved to preset positions (the pre-embedded bolt connection points of the pile foundation at other points on the edge of the foundation pit) with a preset tightening force (provided by the steel wire rope) centered on the left rear base block. When disassembly is required after the foundation pit protection work is completed, the rotating motor is started to automate the cable retraction process, saving time and labor. Simultaneously, the four sets of connecting mechanisms and base blocks form a closed loop, which can be rectangular, square, trapezoidal, or triangular in shape, with rectangular and square structures being more common. For pit protection requiring a trapezoidal structure, in this embodiment, the left rear base block is fixed first, and then the other base blocks are moved for installation. For pit protection requiring a triangular structure, the left rear and left front base blocks are fixed first, and then the other base blocks on the right are moved for installation. This method is widely applicable to the safety protection of pits of different sizes and shapes in highway engineering and has significant market potential.

[0046] like Figure 1As shown: In this embodiment, the telescopic mechanism 3 includes a column 301, protective rods 302, reflective stickers 303, and a warning device 304. The columns 301 are vertically distributed on the base block 105, and the two are rotatable but not movable relative to each other; the purpose of the rotatable arrangement is to accommodate foundation pits with non-rectangular structures, to accommodate situations where there may be sloping sides. Each base block can have one or two columns. The protective rods 302 are multiple hinged and crisscrossed, with the outermost protective rod 302 hinged to the column 301; the multiple crisscrossed protective rods form a protective wall when stretched. The reflective stickers 303 are disposed on the protective rods 302 and are multiple evenly distributed; the purpose of the reflective stickers is to enhance the warning effect in low-light environments. Simultaneously, a light sensor and an LED light connected to the light sensor can be installed on the column to achieve automated lighting and provide a better protective warning effect. In this embodiment, a "door" can also be opened on the protective wall composed of protective rods on one side. Specifically, a door post is set on one side of the protective rods that are connected and intersected on one side of the base blocks, and a door post is set on one side of the base blocks that are symmetrically distributed on the other side. The two door posts are connected by hooks to make them openable and closable, so that professional construction personnel can enter the foundation pit to carry out construction work.

[0047] Among them, such as Figure 2 As shown: The warning device 304 is configured to issue a photoelectric alarm and a voice reminder when a worker is at a preset distance from the protective pole 302. The warning device 304 includes an infrared detection sensor 305 and an alarm 306. Multiple infrared detection sensors 305 are evenly distributed on the protective pole 302 to ensure sufficient uniformity and thus good detection and alerting effects. The alarm 306 is located on the column 301 and is an audible and visual alarm; the alarm 306 maintains a signal connection with the infrared detection sensors 305. Furthermore, the cooperation of the column, protective pole, reflective sticker, and warning device ensures sufficient retractable safety enclosure surface. When a worker is at a preset distance from the protective pole, the infrared detection sensors transmit a signal to the alarm, which then issues a photoelectric alarm and a voice reminder. This makes the system more intelligent and automated, enhancing the warning effect of the foundation pit safety protection.

[0048] like Figure 5 As shown: In this embodiment, the slope protection mechanism 4 includes a waterproof tarpaulin 401 and a clamping member 402. A cavity 403 is provided within the base block 105, corresponding to the direction within the foundation pit. (Refer to...) Figure 3 The structure shown, taking the left rear base block as an example, has two mounting slots and one cavity. The two mounting slots correspond to the rotating motors and wire ropes in two directions. The cavity houses the slope protection mechanism, providing ample storage space, such as... Figure 3 As shown, the mounting slots and cavities are staggered and do not interfere with each other. One end of the waterproof tarpaulin 401 is fixedly connected to the side wall of the cavity 403. Under normal conditions, the waterproof tarpaulin 401 is neatly folded and stored in the cavity 403. The base block side wall on the outside of the cavity is also provided with an openable cover plate, which facilitates storage. The clamping member 402 is configured to use a preset pulling and clamping force to cover and protect the slope of the foundation pit with the waterproof tarpaulin 401 when it is unfolded.

[0049] Specifically, refer to Figure 6 As shown: The clamping component 402 further includes a tensioning structure 404, which consists of multiple evenly distributed groups. Each group of tensioning structures 404 includes an elastic rope 405, a connecting hook 406, and a buckle 407. One end of the elastic rope 405 is fixedly attached to the buckle 407, and the other end is connected to the waterproof tarpaulin 401 via the connecting hook 406. Multiple buckles 407 are evenly distributed on the wire rope to create an unfolded state of the waterproof tarpaulin with a preset tension force. The purpose of this design is to ensure that one end of the waterproof tarpaulin is always connected to the side wall of the cavity, maintaining foundation stability. Simultaneously, multiple evenly distributed elastic ropes and connecting hooks are installed on the tarpaulin. The connecting hooks are press-to-open locking structures, which connect and fix the tarpaulin to the buckles when unfolded and fitted onto the foundation pit slope. The buckles are also press-spring locking hook structures, similar to keychains, creating a pre-set pulling effect on the top of the tarpaulin. This design not only facilitates quick unfolding for installation and use but also makes it easy to fold and store, eliminating the need for manual searching and carrying. It provides a sufficiently large storage cavity, saving time and effort.

[0050] like Figure 7As shown: Further, the clamping component 402 also includes a counterweight structure 408 and a drive motor 409. The counterweight structure 408 includes a counterweight block 410, a fixing rope 411, and a turntable 412. The drive motor 409 is mounted on the base block 105. The drive motor is also a servo-controlled motor, and the output shaft of the drive motor is perpendicular to the output shaft of the rotating motor. The turntable 412 is sleeved and installed on the output shaft of the drive motor 409. One end of the fixing rope 411 is connected to the turntable 412, and the other end is connected to the counterweight block 410, so as to perform a pressing operation on the waterproof tarpaulin 401 with a preset clamping force. At least one set of the counterweight structure 408 is provided in the cavity of each base block 105; this arrangement ensures sufficient stability. In the initial state, the fixing rope is wound on the turntable, and the counterweight block is located in the cavity of the base block. In this embodiment, a positioning plate 413 and a positioning pin 414 may also be provided inside the cavity 403. The positioning plate 413 has a concave structure, with its central space adapted to engage the counterweight 410, and the back plate is perpendicular to the fastening rope 411, which slides through the back plate. Symmetrically distributed positioning holes are also provided on both side walls of the positioning plate 413, through which the positioning pin 414 passes to fix the position of the counterweight 410 and prevent it from shaking.

[0051] The foundation pit safety protection equipment further incorporates waterproof tarpaulins and clamping components on the foundation blocks. Under normal conditions, the tarpaulin is neatly folded and stored in the cavity for later use. The spatial structure design is reasonable, avoiding the time-consuming and laborious problem of manual carrying. When encountering rain or continuous rainy weather, and the tarpaulin needs to be unfolded, first take out the tarpaulin and unfold it to fit the width of the foundation pit. Then, using elastic ropes, connecting hooks, and buckles, the connecting hooks at the top of the tarpaulin are first connected and fixed to the buckles, completing the basic connection and stability of the tarpaulin and providing sufficient load-bearing capacity. Simultaneously, through the coordination of the counterweight, the securing rope, and the turntable, the drive motor is turned on to rotate forward, the counterweight is removed, and the counterweight moves down along the slope of the foundation pit. With the assistance of the drive motor, the securing rope is released to a specified length and the counterweight is pressed to a specified height. Finally, the waterproof tarpaulin is used to cover and protect the slope of the foundation pit with a preset tension and compression effect, thus providing enhanced protection for the foundation pit. Ultimately, this achieves the goal of further protecting the foundation pit itself on the basis of convenient, efficient, and intelligent external foundation pit safety protection.

[0052] In this embodiment, the drive motor, rotating motor, infrared detection sensor, and alarm can be controlled either by connecting a control switch or by using a PLC controller for automatic control. The control circuit and working principle of the PLC controller can be easily implemented by those skilled in the art through simple programming, and are common knowledge in the field. Furthermore, since this application is primarily for protecting mechanical devices, the control method and circuit connections will not be explained in detail here. The device can be powered primarily by connecting a backup battery and a solar panel.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A safety protection device for highway foundation pits, characterized in that: The protective equipment includes a support mechanism, a connecting mechanism, a telescopic mechanism, and a slope protection mechanism; The support mechanism includes a base plate, movable wheels, support legs, and a mounting plate; the base plate is horizontally distributed left and right and is divided into four equal base blocks; there are four movable wheels, each mounted on one of the base blocks; there are also four support legs, each mounted on one of the base blocks, and the support legs are retractable; the mounting plate is fixedly mounted on the support legs, and has mounting holes on its outer edge to fix the position by connecting pre-embedded fastening bolts; A connecting mechanism is provided between every two adjacent base blocks. The connecting mechanism is configured with the base block at the left rear as the center, which can drive the other three base blocks to move to a preset position with a preset fastening force, and complete the automated winding operation when disassembling and storing the protective device. The telescopic mechanism includes a column, a guardrail, reflective stickers, and a warning device; the column is mounted on the base block, and the two are rotatable but not movable relative to each other; the guardrails are multiple hinged and crisscrossed, with the outermost guardrails hinged to the column; the reflective stickers are mounted on the guardrails and are multiple evenly distributed; the warning device is configured to issue a photoelectric alarm and a voice reminder when a worker is at a preset distance from the guardrail. The slope protection mechanism includes a waterproof tarpaulin and a clamping component; the base block has a cavity, and one end of the waterproof tarpaulin is fixedly connected to the side wall of the cavity. Under normal conditions, the waterproof tarpaulin is neatly folded and stored in the cavity; the clamping component is configured to complete the covering and protection of the slope of the foundation pit with a preset pulling and clamping force when the waterproof tarpaulin is unfolded.

2. The highway foundation pit safety protection equipment as described in claim 1, characterized in that: The support leg includes a connecting rod and a connecting sleeve; the connecting rod is vertically distributed on the base plate, and the connecting sleeve is disposed on the mounting plate, and the two are allowed to rotate relative to each other but cannot move relative to each other; the connecting sleeve is sleeved and installed between the connecting rod and is allowed to rotate relative to each other.

3. The highway foundation pit safety protection equipment as described in claim 2, characterized in that: The connecting rod is also provided with scale lines.

4. The highway foundation pit safety protection equipment as described in claim 3, characterized in that: The connecting mechanism includes a rotating motor, a rotating shaft, a winding reel, a steel wire rope, and a buckle; the base block has an installation groove, the rotating motor is disposed in the base block, the rotating shaft is rotatably disposed in the installation groove, the winding reel is sleeved and installed on the rotating shaft, one end of the steel wire rope is disposed on the winding reel, and the other end is connected to the buckle through a hook, and the buckle is disposed on the adjacent base block on the other side.

5. The highway foundation pit safety protection equipment as described in claim 4, characterized in that: Each of the base blocks is provided with a rotating motor and a buckle. The hooks of the four sets of connecting mechanisms are connected to the buckles to form a closed loop connected end to end. The shape of the closed loop can be any one of rectangle, square, trapezoid, or triangle.

6. The highway foundation pit safety protection equipment as described in claim 5, characterized in that: Each set of the connecting mechanism consists of at least one set of winding reels, wire ropes, hooks, and buckles that are installed in a matched manner.

7. The highway foundation pit safety protection equipment as described in claim 6, characterized in that: The warning device includes an infrared detection sensor and an alarm; the infrared detection sensor is installed on the protective rod and there are multiple sensors evenly distributed thereon; the alarm is installed on the column and is an audible and visual alarm; the alarm is connected to the infrared detection sensor by signal.

8. The highway foundation pit safety protection equipment as described in claim 7, characterized in that: The clamping component also includes a tensioning structure, which includes an elastic rope, a connecting hook, and a buckle; one end of the elastic rope is fixedly set to the buckle, and the other end is connected to the waterproof tarpaulin through the connecting hook; there are multiple buckles, which are evenly distributed on the wire rope to form the waterproof tarpaulin in an unfolded state with a preset tension force.

9. A highway foundation pit safety protection device as described in claim 8, characterized in that: The clamping component also includes a counterweight structure and a drive motor. The counterweight structure includes a counterweight block, a fastening rope, and a turntable. The drive motor is mounted on the base block, and the turntable is sleeved and installed on the output shaft of the drive motor. One end of the fastening rope is connected to the turntable, and the other end is connected to the counterweight block, so as to perform a pressing operation on the waterproof tarpaulin with a preset clamping force.

10. A highway foundation pit safety protection device as described in claim 9, characterized in that: At least one set of the weight-bearing structures is provided within each of the base blocks.

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