Municipal road foundation pit safety protection device

Abstract

The utility model relates to the technical field of road foundation pit safety protection, in particular to a municipal road foundation pit safety protection device, which is characterized in that the top end of a fixed column is fixedly connected with two sliding rods in a symmetrical relationship, and the bottom end of the fixed column is fixedly connected with two guide rods in a symmetrical relationship; the sliding rod and the guide rod on the same side are slidably connected with a fixing rod, the top end of the fixing rod is in threaded connection with a bolt, the bolt extends to the upper surface of the sliding rod to lock the sliding rod, a supporting structure is installed at the bottom end of the fixing rod and comprises a fixing base, and the bottom end of the fixing base is rotatably connected with a rotating shaft. A supporting plate is fixedly connected to the rotating shaft, a limiting ring is slidably connected to the outer portion of the bottom end of the fixing base, and the limiting ring abuts against the supporting plate. The length of the protective fence can be adjusted, and the protective fence can be used in a self-supporting mode without assistance of external force.

Description

Technical Field

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

[0002] During the construction of municipal roads, it is often necessary to excavate foundation pits. Foundation pits are earth pits excavated at the foundation design location according to the base elevation and foundation plane dimensions. Due to the special construction sites of municipal roads and the high density of personnel, in order to improve the safety of construction, safety protection devices are often set up around the foundation pits to serve as a warning to pedestrians or vehicles and ensure the safety of pedestrians and vehicles.

[0003] At present, during road construction, most of the pothole guardrails used are one-piece. The length of the guardrail cannot be adjusted according to the size of different potholes, and the adaptability is poor. There are no support legs at the bottom of the guardrail. The guardrail only relies on itself to maintain balance. Without external force assistance, it is easy to tip over. Utility Model Content

[0004] The purpose of the present invention is to provide a municipal road foundation pit safety protection device in order to solve the above problems, which can adjust the length of the guardrail and can be used for self-support without external force assistance.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a municipal road foundation pit safety protection device, the top of the fixed column is symmetrically fixedly connected to two sliding rods, the bottom of the fixed column is symmetrically fixedly connected to two guide rods, the sliding rod and the guide rod on the same side are slidably connected with a fixing rod, the top of the fixing rod is threadedly connected with a bolt, the bolt extends to the upper surface of the sliding rod to lock the sliding rod, and the bottom end of the fixing rod is equipped with a supporting structure, which includes a fixed seat, the bottom end of the fixed seat is rotatably connected to a rotating shaft, and the rotating shaft is fixedly connected to a support plate, and the bottom end of the fixed seat is externally slidably connected to a limiting ring, and the limiting ring and the support plate are in conflict.

[0006] Preferably, the sliding rod is in the shape of a hexagonal prism as a whole, and the rotation angle of the support plate is 0 to 90 degrees.

[0007] Preferably, a plurality of support plates are provided in a distributed relationship in a ring array, and the limiting ring is an overall rectangular ring structure.

[0008] Preferably, the top end of the support plate is fixedly connected to a limit plate, and the limit plate is in conflict with a limit ring.

[0009] Preferably, a protrusion is fixedly connected to the side end of the limiting ring, and a plurality of the protrusions are distributed in a ring array.

[0010] Preferably, the bottom end of the fixing seat is fixedly connected to a bottom plate, and the bottom plate is in contact with the support plate.

[0011] Preferably, a limiting rod is fixedly connected inside the fixing seat, and the limiting rod is in conflict with the support plate.

[0012] Preferably, a positioning structure is installed on the fixing seat, and the positioning structure includes a clamping block. The side end of the fixing seat is slidably connected with the clamping block, and the clamping block is engaged and abutted against the limiting ring.

[0013] Preferably, a slider is fixedly connected to the bottom end of the block, the slider is slidably connected to the fixing seat, and a spring is fixedly connected between the slider and the fixing seat.

[0014] Preferably, the top of the block is in an arc-shaped structure, and the slider is in a convex shape as a whole.

[0015] The beneficial effect of the utility model is that when it is necessary to carry out safety protection of the foundation pit, the bolts on the fixing rod are loosened. When the bolts and the sliding rod are no longer locked in conflict, the two fixing rods are slid to both ends respectively. When the required length is adjusted, the bolts are tightened in the opposite direction. When the bolts extend to the upper surface of the sliding rod again and lock the sliding rod, the sliding rod can be fixed. Therefore, the length of the guardrail can be adjusted according to the size of different foundation pits. Then the limiting ring is slid upward. When the limiting ring and the support plate are no longer in conflict, the multiple support plates rotate and fall down through the rotating shaft, thereby being supported by the fixing seat and the support plate. The guardrail can be supported and positioned without driving ground nails and without compacting stones, which is convenient for better use of the guardrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 The enlarged structural diagram of part A is shown;

[0018] Figure 3 for Figure 1 The enlarged structural diagram of part B is shown;

[0019] Figure 4 This is a schematic diagram of the connection structure between the rotating shaft and the support plate of the utility model.

[0020] In the figure: 1. Fixed column; 2. Fixed rod; 3. Sliding rod; 4. Bolt; 5. Support structure; 501. Fixed seat; 502. Rotating axis; 503. Support plate; 504. Limiting ring; 505. Limiting plate; 506. Protrusion; 507. Bottom plate; 508. Limiting rod; 6. Positioning structure; 601. Block; 602. Sliding block; 603. Spring; 7. Guide rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 As shown, a municipal road foundation pit safety protection device is provided, wherein the top end of the fixed column 1 is symmetrically fixedly connected to two sliding rods 3, and the bottom end of the fixed column 1 is symmetrically fixedly connected to two guide rods 7, and the sliding rod 3 and the guide rod 7 on the same side are slidably connected with a fixed rod 2, and the top end of the fixed rod 2 is threadedly connected to a bolt 4, and the bolt 4 extends to the upper surface of the sliding rod 3 to lock the sliding rod 3, and a supporting structure 5 is installed at the bottom end of the fixed rod 2, and the supporting structure 5 includes a fixed seat 501, and the bottom end of the fixed seat 501 is rotatably connected to a rotating shaft 502, and a support plate 503 is fixedly connected to the rotating shaft 502, and the bottom end of the fixed seat 501 is externally slidably connected to a limiting ring 504, and the limiting ring 504 is in conflict with the support plate 503.

[0023] As a technical optimization solution of the present invention, the sliding rod 3 is in the shape of a hexagonal prism as a whole, and the support plate 503 can rotate at an angle of 0 to 90 degrees, thereby facilitating the unfolding and storage of the support plate 503 .

[0024] As a technical optimization solution of the present invention, a plurality of support plates 503 are provided in a circular array distribution relationship, and the limiting ring 504 is an overall rectangular ring structure, so as to facilitate limiting the plurality of support plates 503 .

[0025] As a technical optimization solution of the present invention, the top of the support plate 503 is fixedly connected to the limiting plate 505, and the limiting plate 505 is in conflict with the limiting ring 504. When the limiting ring 504 slides downward, when the limiting ring 504 and the limiting plate 505 are engaged, the support plate 503 can be prevented from rotating back.

[0026] As a technical optimization solution of the present invention, the side end of the limiting ring 504 is fixedly connected with a protrusion 506, and a plurality of the protrusions 506 are distributed in a circular array, and the protrusions 506 facilitate the upward pushing of the limiting ring 504 to slide.

[0027] As a technical optimization solution of the present invention, the bottom end of the fixed seat 501 is fixedly connected to a base plate 507, and the base plate 507 is in conflict with the support plate 503. A limiting rod 508 is fixedly connected inside the fixed seat 501, and the limiting rod 508 is in conflict with the support plate 503. The rotation angle of the support plate 503 can be limited by the base plate 507 and the limiting rod 508.

[0028] As a technical optimization solution of the present invention, a positioning structure 6 is installed on the fixed seat 501, and the positioning structure 6 includes a clamping block 601. The side end of the fixed seat 501 is slidingly connected with the clamping block 601. The clamping block 601 and the limiting ring 504 are engaged and in conflict with each other, and the limiting ring 504 can be limited by the clamping block 601.

[0029] As a technical optimization solution of the present invention, the bottom end of the block 601 is fixedly connected to a slider 602, the slider 602 and the fixed seat 501 are slidably connected, and a spring 603 is fixedly connected between the slider 602 and the fixed seat 501. The top of the block 601 is an arc-shaped structure, and the slider 602 is a convex structure as a whole. The slider 602 and the spring 603 can drive the block 601 to reset after sliding.

[0030] When the utility model is in use, when the road is under construction and the foundation pit needs to be safely protected, the bolts 4 on the fixing rod 2 are loosened. When the bolts 4 and the sliding rod 3 no longer conflict with each other, the two fixing rods 2 are slid to the two ends respectively. When the required length is adjusted, the bolts 4 are rotated in the opposite direction and tightened. When the bolts 4 extend to the upper surface of the sliding rod 3 again and lock the sliding rod 3, the sliding rod 3 can be fixed. Therefore, the length of the guardrail can be adjusted according to the size of different foundation pits. Then the limiting ring 504 is slid upward. When the limiting ring 504 and the support plate 503 no longer conflict with each other, the multiple support plates 503 rotate and fall through the rotating shaft 502, thereby being supported by the fixing seat 501 and the support plate 503. The guardrail can be supported and positioned without driving nails and without compacting stones, which is convenient for better protection. When the support plate 503 is opened, the limit ring 504 slides downward, and the limit ring 504 and the limit plate 505 are engaged, the support plate 503 can be prevented from rotating back, and the limit ring 504 can be pushed upward to slide by the protrusion 506. The rotation angle of the support plate 503 can be limited by the bottom plate 507 and the limit rod 508. When it is necessary to fold up multiple support plates 503, the limit ring 504 is pushed upward and pushed above the block 601. The limit ring 504 can be limited by the block 601, and the slider 602 and the spring 603 can drive the block 601 to reset after it slides, and then the multiple support plates 503 are folded up, and the limit ring 504 is pushed to slide back. When the limit ring 504 and the support plate 503 conflict, the multiple support plates 503 can be prevented from rotating and unfolding.

[0031] 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 present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0032] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A municipal road foundation pit safety protection device, comprising a fixed column (1), characterized in that: The top end of the fixed column (1) is fixedly connected to two sliding rods (3) in a symmetrical relationship, and the bottom end of the fixed column (1) is fixedly connected to two guide rods (7) in a symmetrical relationship. The sliding rod (3) and the guide rod (7) on the same side are slidably connected to a fixed rod (2). The top end of the fixed rod (2) is threadedly connected to a bolt (4), and the bolt (4) extends to the upper surface of the sliding rod (3) to lock the sliding rod (3). The bottom end of the fixed rod (2) is installed with a support structure (5), and the support structure (5) includes a fixed seat (501), the bottom end of the fixed seat (501) is rotatably connected to a rotating shaft (502), and the rotating shaft (502) is fixedly connected to a support plate (503), and the bottom end of the fixed seat (501) is externally slidably connected to a limiting ring (504), and the limiting ring (504) and the support plate (503) are in conflict.

2. A municipal road foundation pit safety protection device according to claim 1, characterized in that: The sliding rod (3) is in the shape of a hexagonal prism as a whole, and the support plate (503) has a rotation angle of 0 to 90 degrees.

3. A municipal road foundation pit safety protection device according to claim 1, characterized in that: The support plates (503) are provided in a plurality and distributed in a ring array, and the limiting ring (504) is in a rectangular ring structure as a whole.

4. A municipal road foundation pit safety protection device according to claim 1, characterized in that: The top end of the support plate (503) is fixedly connected to a limiting plate (505), and the limiting plate (505) is in conflict with the limiting ring (504).

5. The municipal road foundation pit safety protection device according to claim 1, characterized in that: A protrusion (506) is fixedly connected to the side end of the limiting ring (504), and a plurality of the protrusions (506) are distributed in a ring array.

6. A municipal road foundation pit safety protection device according to claim 1, characterized in that: The bottom end of the fixing seat (501) is fixedly connected to a bottom plate (507), and the bottom plate (507) is in contact with the support plate (503).

7. The municipal road foundation pit safety protection device according to claim 1, characterized in that: A limiting rod (508) is fixedly connected inside the fixing seat (501), and the limiting rod (508) is in conflict with the supporting plate (503).

8. The municipal road foundation pit safety protection device according to claim 1, characterized in that: A positioning structure (6) is installed on the fixing seat (501), and the positioning structure (6) includes a clamping block (601). The side end of the fixing seat (501) is slidably connected with the clamping block (601), and the clamping block (601) and the limiting ring (504) are engaged and abutted.

9. A municipal road foundation pit safety protection device according to claim 8, characterized in that: The bottom end of the block (601) is fixedly connected to a slider (602), the slider (602) and the fixing seat (501) are slidably connected, and a spring (603) is fixedly connected between the slider (602) and the fixing seat (501).

10. A municipal road foundation pit safety protection device according to claim 9, characterized in that: The top of the clamping block (601) is in an arc-shaped structure, and the slider (602) is in a convex shape as a whole.

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