A foundation pit safety protection device based on municipal road engineering

Abstract

The utility model relates to the field of municipal road engineering, and specifically to a foundation pit safety protection device based on municipal road engineering, including a guardrail for the safety protection of the foundation pit of the municipal road engineering; a warning sign fixedly installed in front of the guardrail for warning passers-by; and a first connecting frame fixedly installed on one side of the guardrail. The utility model is a foundation pit safety protection device based on a municipal road engineering. Through the arrangement of the guardrail, the support frame and the reinforcement mechanism, the stability and firmness of the overall guardrail can be enhanced to prevent the guardrail from being knocked down by strong winds or human carelessness. The screw is driven to rotate by rotating the handle, so that the screw rotates in the reinforcement tube and pushes the fixed block at the same time. When the fixed block is extended and retracted, the two sets of external movable plates are pushed to move to both sides. Through the movement of the movable plate, the insertion rod on one side is extended and retracted to both sides outside the reinforcement tube, so that the insertion rod is inserted into the ground, thereby improving the stability and firmness of the entire device.

Description

Technical Field

[0001] The utility model relates to the field of municipal road engineering, in particular to a foundation pit safety protection device based on municipal road engineering. Background Art

[0002] Municipal road engineering refers to the construction and maintenance of roads in cities or urban areas, and the foundation pit of municipal road engineering refers to the earth pit excavated at the foundation design position according to the base elevation and foundation plane dimensions. With the progress of society, the buildings in the central urban area are becoming more and more dense, especially with the large-scale new high-rise buildings, more and more foundation pits need to be excavated for municipal road construction. Municipal road engineering is part of the municipal infrastructure project. The construction of municipal roads requires the excavation of a large number of deep foundation pits. The foundation pit protection device is to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. The support, reinforcement and protection measures for the side walls of the foundation pit and the surrounding environment are adopted. The foundation pit protection device is mainly to prevent road vehicles, personnel, etc. from entering the foundation pit by mistake.

[0003] After searching, a utility model based on a municipal road engineering foundation pit safety protection device with a publication number of CN207406130U was found. Its structure includes bolt holes, steel plates, supporting steel frames, connecting pieces, reflective horizontal plates, warning sensors, and guardrails. The bolt holes and the steel plates are an integrated structure. The upper end of the steel plate is welded to the lower end of the supporting steel frame and are perpendicular to each other. The supporting steel frame and the connecting piece are hingedly connected. The reflective horizontal plate and the guardrail are an integrated structure and are perpendicular to each other. The lower end of the resistor is fitted with the upper end of the single-chip computer and are perpendicular to each other. The lower end of the power connector is welded to the upper end of the single-chip computer, and the lower end of the capacitor plate is fitted with the upper end of the single-chip computer. The utility model is a foundation pit safety protection device based on a municipal road engineering. The lower end of the distance sensor is welded to the upper end of the shell in the structure. When the light is insufficient at night, when the distance sensor senses that an object is approaching in front, the loudspeaker can play warning audio to warn pedestrians and vehicles. The guardrails are connected by connecting pieces for easy disassembly and transportation.

[0004] The existing foundation pit safety protection device for municipal road projects in the above patent basically uses bolts to fix the entire protection device during installation. However, when it is necessary to fix the device on the ground, simply using bolts will cause the base of the protection device to be unstable, which will cause the guardrail to topple. The foundation pit safety protection device in the above comparison case is too simple in overall setting, and also uses bolts to fix the protection device, which lacks certain stability.

[0005] Therefore, it is necessary to invent a foundation pit safety protection device based on municipal road engineering to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a foundation pit safety protection device based on municipal road engineering, which drives the screw by rotating the handle, and the rotation of the screw pushes the fixed block to squeeze and move the two sets of movable plates outward, and the insertion rod on one side is extended to both sides outside the reinforcement tube by squeezing, thereby improving the stability and firmness of the entire device, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foundation pit safety protection device based on municipal road engineering, including a guardrail, used for the safety protection of the foundation pit of the municipal road engineering;

[0008] A warning sign is fixedly installed in front of the guardrail to warn passers-by; a first connecting frame is fixedly installed on one side of the guardrail, a kit is fixedly installed on one side of the first connecting frame, and a second connecting frame is fixedly installed on the other side of the guardrail;

[0009] An assembly mechanism is arranged inside the second connecting frame and is used for assembling a plurality of guardrails. The assembly mechanism comprises a screw rod, a handle, a movable block, a latch, a limit groove, and a connecting sleeve. The screw rod is arranged inside the second connecting frame. A handle is fixedly installed on the upper end of the screw rod. A movable block is movably connected to the outside of the screw rod. A latch is fixedly installed below one side of the movable block. A limit groove is provided on one side surface of the second connecting frame. A connecting sleeve is fixedly installed on one side of the second connecting frame.

[0010] The support frame is fixed under the guardrail and is used to support the guardrail. Reinforcement mechanisms are penetrated on both sides of the support frame.

[0011] Preferably, the movable block and the latch are integrated, and the movable block and the latch are arranged in two groups, and the two groups of movable blocks are limitedly slidably connected with the second connecting frame through a limiting groove.

[0012] Preferably, the movable block is movably connected to the latch and the kit, and the latch and the kit are used in coordination with each other.

[0013] Preferably, the reinforcement mechanism includes a reinforcement cylinder, a screw, a handle, a fixed block, a slide groove, a movable plate, an insertion rod and a spring. The reinforcement cylinder is fixed on both sides of the support frame, the reinforcement cylinder is movably connected with a screw inside, a handle is fixedly installed on the upper end of the screw, a fixed block is provided at the lower end of the screw, a slide groove is provided on the inner bottom end surface of the reinforcement cylinder, the slide groove is movably connected with a movable plate inside, an insertion rod is fixedly installed on one side of the movable plate, and a spring is provided on the other side of the movable plate.

[0014] Preferably, the fixed block is arranged in a cone shape, and the movable plates are arranged in two groups, and the inner dimensions of the two groups of movable plates are consistent with the outer dimensions of the fixed block.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] By setting up the guardrail, the support frame and the reinforcement mechanism, the stability and firmness of the overall guardrail can be enhanced to prevent the guardrail from being knocked down by strong wind or human carelessness. The screw rod is driven to rotate by rotating the handle, so that the screw rod rotates in the reinforcement tube and pushes the fixed block at the same time. When the fixed block is extended and retracted, the two sets of external movable plates are pushed to move to both sides. Through the movement of the movable plate, the insertion rod on one side is extended and retracted to both sides outside the reinforcement tube, so that the insertion rod is inserted into the ground, thereby improving the stability and firmness of the entire overall device;

[0017] By setting up the guardrail, the first connecting frame, the kit, the second connecting frame and the assembly mechanism, it is convenient for the staff to connect and assemble multiple guardrails according to the foundation pit protection range on site, by placing the first connecting frame and the kit on one side of the other guardrail on the connecting sleeve on one side of the second connecting frame, and then turning the handle above the second connecting frame, and driving the screw rod through the handle, so that the movable block and the pin outside the screw rod are lifted and slid in the second connecting frame, and the pin is inserted into the kit and the connecting sleeve during the lifting and sliding process, and the two sets of guardrails are spliced. This setting makes it convenient for the staff to assemble multiple guardrails. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the assembly mechanism structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the closed structure of the reinforcement mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the opening and closing structure of the reinforcement mechanism of the utility model.

[0023] Description of reference numerals:

[0024] 1. Guardrail; 2. Warning sign; 3. First connecting frame; 4. Kit; 5. Second connecting frame; 6. Assembly mechanism; 601. Screw; 602. Handle; 603. Movable block; 604. Latch; 605. Limiting groove; 606. Connecting sleeve; 7. Support frame; 8. Reinforcement mechanism; 801. Reinforcement cylinder; 802. Screw; 803. Turning handle; 804. Fixed block; 805. Slide; 806. Movable plate; 807. Insertion rod; 808. Spring. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model provides Figure 1-4 A foundation pit safety protection device based on a municipal road project is shown, comprising a guardrail 1, which is used for foundation pit safety protection of a municipal road project;

[0027] A warning sign 2 is fixedly installed in front of the guardrail 1 to warn passers-by; a first connecting frame 3 is fixedly installed on one side of the guardrail 1, a kit 4 is fixedly installed on one side of the first connecting frame 3, and a second connecting frame 5 is fixedly installed on the other side of the guardrail 1;

[0028] The assembly mechanism 6 is arranged inside the second connecting frame 5 and is used for assembling multiple guardrails 1. The assembly mechanism 6 includes a screw rod 601, a handle 602, a movable block 603, a latch 604, a limit groove 605, and a connecting sleeve 606. The screw rod 601 is arranged inside the second connecting frame 5. The handle 602 is fixedly installed on the upper end of the screw rod 601. The movable block 603 is movably connected to the outside of the screw rod 601. The latch 604 is fixedly installed below one side of the movable block 603. The limit groove 605 is provided on the surface of one side of the second connecting frame 5, and the connecting sleeve 606 is fixedly installed on one side of the second connecting frame 5.

[0029] The support frame 7 is fixed under the guardrail 1 and is used to support the guardrail 1. Reinforcement mechanisms 8 are passed through both sides of the support frame 7. The screw rod 802 is driven to rotate by rotating the handle 803, so that the screw rod 802 rotates in the reinforcement tube 801 and pushes the fixed block 804 at the same time. When the fixed block 804 is extended or retracted, the two sets of external movable plates 806 are pushed to move to both sides. Through the movement of the movable plates 806, the insertion rod 807 on one side is extended or retracted to both sides outside the reinforcement tube 801, so that the insertion rod 807 is inserted into the ground, thereby improving the stability and firmness of the entire device.

[0030] like Figure 2As shown, the movable block 603 and the latch 604 are integrated, and the movable block 603 and the latch 604 are arranged in two groups. The two groups of movable blocks 603 are slidably connected with the second connecting frame 5 through the limiting groove 605. Through the setting of the limiting groove 605, the limiting stability of the two groups of movable blocks 603 and the latch 604 is improved when moving.

[0031] like Figure 1 and Figure 2 As shown, the movable block 603 is movably connected with the latch 604 and the kit 4, and the latch 604 and the kit 4 are used in conjunction with each other. The two sets of movable blocks 603 and the latch 604 are snap-connected with the two sets of kits 4, thereby improving the stability of assembling multiple sets of guardrails 1.

[0032] like Figure 1 , Figure 3 and Figure 4 As shown, the reinforcement mechanism 8 includes a reinforcement cylinder 801, a screw 802, a handle 803, a fixed block 804, a slide 805, a movable plate 806, a plug rod 807, and a spring 808. The reinforcement cylinder 801 is fixed on both sides of the support frame 7, and the reinforcement cylinder 801 is movably connected with the screw 802 inside. The upper end of the screw 802 is fixedly installed with a handle 803, and the lower end of the screw 802 is provided with a fixed block 804. The inner bottom surface of the reinforcement cylinder 801 is provided with a slide 805, and the inner movability of the slide 805 is connected with a movable plate 806. One side of the movable plate 806 is fixedly installed with a plug rod 807, and the other side of the movable plate 806 is provided with a spring 808. The fixed block 804 is pushed to rise and fall by rotating the screw 802. During the lifting process, the movable plate 806 and the outer sides of the plug rod 807 are squeezed to expand and contract, so that the plug rod 807 extends out of the reinforcement cylinder 801 and is inserted into the ground, thereby enhancing the firmness of the entire device.

[0033] like Figure 3 and Figure 4 As shown, the fixed block 804 is set to a cone shape, and the movable plate 806 is set to two groups. The interior of the two groups of movable plates 806 are consistent with the external size of the fixed block 804. By setting the fixed block 804 to a cone shape, the interior of the movable plate 806 can be squeezed during the extension and retraction process, thereby pushing the insertion rod 807 to extend and retract in the reinforcement tube 801.

[0034] The practical working principle of the present invention is as follows: first, the integral guardrail 1 is placed around the foundation pit of the road project, and then the reinforcement tubes 801 on both sides of the support frame 7 are inserted into the ground, and then the rotating handle 803 drives the screw rod 802 to rotate, so that the screw rod 802 rotates in the reinforcement tube 801 and pushes the fixed block 804 at the same time. When the fixed block 804 is extended and retracted, the two sets of external movable plates 806 are pushed to move to both sides, and the insertion rod 807 on one side is extended and retracted to both sides outside the reinforcement tube 801 through the movement of the movable plate 806, and the insertion rod 807 is inserted into the ground, thereby improving the stability and firmness of the entire overall device. Next, according to the size of the foundation pit range, multiple sets of guardrails 1 are assembled and spliced, and the other guardrails are first assembled and spliced. The first connecting frame 3 and the kit 4 on one side of 1 are placed on the connecting sleeve 606 on one side of the second connecting frame 5, and then the handle 602 above the second connecting frame 5 is turned, and the screw rod 601 is driven by the handle 602, so that the movable block 603 outside the screw rod 601 and the latch 604 are lifted and slid in the second connecting frame 5. During the lifting and sliding process, the latch 604 is inserted into the kit 4 and the connecting sleeve 606 to splice the two sets of guardrails 1, and the latch 604 can rotate in the kit 4 to facilitate the adjustment of the angle of the guardrail 1. After that, multiple sets of guardrails 1 are spliced ​​through the steps just now, and the use process of the foundation pit safety protection device based on municipal road engineering is completed.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A foundation pit safety protection device based on municipal road engineering, characterized by: It comprises a guardrail (1) for the safety protection of foundation pits in municipal road projects; A warning sign (2) is fixedly mounted in front of the guardrail (1) for warning passers-by; a first connecting frame (3) is fixedly mounted on one side of the guardrail (1), a kit (4) is fixedly mounted on one side of the first connecting frame (3), and a second connecting frame (5) is fixedly mounted on the other side of the guardrail (1); An assembly mechanism (6) is arranged inside the second connecting frame (5) and is used for assembling a plurality of guardrails (1). The assembly mechanism (6) comprises a screw rod (601), a handle (602), a movable block (603), a latch (604), a limit groove (605), and a connecting sleeve (606). The screw rod (601) is arranged inside the second connecting frame (5). The handle (602) is fixedly mounted on the upper end of the screw rod (601). The movable block (603) is movably connected to the outside of the screw rod (601). A latch (604) is fixedly mounted below one side of the movable block (603). The limit groove (605) is provided on one side surface of the second connecting frame (5). The connecting sleeve (606) is fixedly mounted on one side of the second connecting frame (5). The support frame (7) is fixed below the guardrail (1) and is used to support the guardrail (1). Reinforcement mechanisms (8) are provided on both sides of the support frame (7).

2. The foundation pit safety protection device based on municipal road engineering according to claim 1 is characterized in that: The movable block (603) and the latch (604) are integrally arranged, and the movable block (603) and the latch (604) are arranged in two groups. The two groups of movable blocks (603) are connected to the second connecting frame (5) in a limited sliding manner via a limiting groove (605).

3. The foundation pit safety protection device based on municipal road engineering according to claim 1 is characterized in that: The movable block (603) is movably connected to the latch (604) and the set (4), and the latch (604) and the set (4) are used in conjunction with each other.

4. The foundation pit safety protection device based on municipal road engineering according to claim 1 is characterized in that: The reinforcement mechanism (8) comprises a reinforcement cylinder (801), a screw rod (802), a handle (803), a fixed block (804), a slide groove (805), a movable plate (806), an insertion rod (807), and a spring (808). The reinforcement cylinder (801) is fixed on both sides of the support frame (7). The reinforcement cylinder (801) is movably connected to the screw rod (802) inside. The upper end of the screw rod (802) is fixedly mounted with a handle (803). The lower end of the screw rod (802) is provided with a fixed block (804). The inner bottom end surface of the reinforcement cylinder (801) is provided with a slide groove (805). The inner part of the slide groove (805) is movably connected to the movable plate (806). The insertion rod (807) is fixedly mounted on one side of the movable plate (806). The other side of the movable plate (806) is provided with a spring (808).

5. The foundation pit safety protection device based on municipal road engineering according to claim 4 is characterized in that: The fixed block (804) is configured in a cone shape, and the movable plates (806) are configured in two groups, and the interior dimensions of the two groups of movable plates (806) match the exterior dimensions of the fixed block (804).

Images