Highway bridge foundation pit protection device

Abstract

The utility model provides a highway bridge foundation pit protection device which comprises a stand column, an upper inserting cylinder and a lower inserting cylinder are correspondingly arranged on the periphery of the stand column up and down, and a lifting driving mechanism for driving the upper inserting cylinder to move up and down is arranged in the upper end of the stand column. The protective net is provided with a supporting frame, a net piece is arranged in the supporting frame, upper hooks and lower hooks are arranged at the two ends of the supporting frame in an up-and-down symmetry mode, the ends of the upper hooks face upwards, and the ends of the lower hooks face upwards; the upper hook corresponds to the upper insertion cylinder, and the lower hook corresponds to the lower insertion cylinder; according to the utility model, when the protective net is connected with the stand column, the lower hook is firstly inserted into the lower insertion cylinder for positioning, then the lifting driving mechanism is controlled to drive the upper insertion cylinder to descend, and the upper insertion cylinder is sleeved on the outer side of the upper hook, so that the protective net is fixedly connected with the stand column, additional tools are not needed, and the connection stability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and particularly relates to a protection device for highway bridge foundation pits. Background Art

[0002] During the construction of highway bridge foundation pits, in order to protect the safety of vehicles and pedestrians around the foundation pits, it is necessary to set up protection devices around the foundation pits to prevent vehicles or pedestrians from straying in and causing accidents.

[0003] In the prior art, the protection device usually has columns and a protection net. The bottom end of the column is fixed to the ground, and both sides of the protection net are fixedly connected to the column; initially, at least two bolt and nut mechanisms are used to assemble and fixedly connect between one side of the protection net and one side of the column. This installation method is rather cumbersome during the disassembly and assembly process; the Chinese utility model patent document with the authorization announcement number CN221346530U discloses a warning guardrail for bridge construction, in which the protection net and the column are fixedly hung by matching a connecting hook with a hanging buckle. This connection method can be disassembled and assembled quickly, but during use, when an upward force acts on the protection net, the connecting hook is likely to come out of the hanging buckle, causing the protection net to separate from the column and the protection net to fall down, with poor connection stability.

[0004] Therefore, it is necessary to design a protection device for highway bridge foundation pits that is convenient for disassembly and assembly and improves connection stability to solve the current technical problems. Summary of the Invention

[0005] Aiming at the deficiencies in the prior art, the utility model provides a protection device for highway bridge foundation pits that is convenient for disassembly and assembly and improves connection stability.

[0006] The technical solution of the utility model is as follows: a protection device for highway bridge foundation pits, comprising: columns, upper insertion cylinders and lower insertion cylinders are correspondingly arranged up and down around the columns, and a lifting drive mechanism for driving the upper insertion cylinders to move up and down is arranged inside the upper end of the columns; a protection net, the protection net has a support frame, a net sheet is arranged inside the support frame, upper hooks and lower hooks are symmetrically arranged up and down at both ends of the support frame, the end of the upper hook faces upward, and the end of the lower hook faces downward; the upper hook corresponds to the upper insertion cylinder, and the lower hook corresponds to the lower insertion cylinder.

[0007] The lifting drive mechanism has a screw rod rotatably arranged inside the upper end of the column, a lifting block threadedly connected to the screw rod is slidably arranged inside the column, sliding grooves corresponding to the upper insertion cylinders are opened around the column, sliding blocks slidably connected to the sliding grooves are fixedly arranged around the lifting block, and the upper insertion cylinder is fixed at one end of the sliding block away from the lifting block.

[0008] The upper end of the screw is detachably equipped with a reflective column, and a reflective sticker is arranged on the outer side of the reflective column.

[0009] A cross-shaped plug board is fixedly arranged at the upper end of the screw, and a cross-shaped slot matching the cross-shaped plug board is opened at the bottom end of the reflective column.

[0010] A stop mechanism corresponding to the cross-shaped plug board is arranged at the upper end of the upright column. The stop mechanism has a support cylinder arranged inside the upper end of the upright column. A sliding disk is slidably arranged inside the support cylinder. A spring is arranged between the bottom of the sliding disk and the inner bottom of the support cylinder. A stop bolt is fixedly arranged at the top of the sliding disk, and the stop bolt corresponds to the cross-shaped plug board.

[0011] A base is fixedly arranged at the bottom of the upright column.

[0012] The beneficial effects of the utility model are as follows:

[0013] (1) In the utility model, when connecting the protective net and the upright column, first insert the lower hook into the lower insertion cylinder for positioning, and then control the lifting drive mechanism to drive the upper insertion cylinder to descend, and sleeve the upper insertion cylinder outside the upper hook to realize the fixed connection between the protective net and the upright column, without the need for additional tools, which is convenient for disassembly and assembly;

[0014] (2) The upper insertion cylinder and the lower insertion cylinder are respectively limited above the upper hook and below the lower hook, improving the connection stability. When the protective net shakes, the upper hook and the lower hook are not easily disengaged from the inside of the upper insertion cylinder and the lower insertion cylinder. Description of the drawings

[0015] Figure 1 It is a schematic structural diagram of the bridge foundation pit protection device in the utility model.

[0016] Figure 2 It is one of the schematic structural diagrams of the upright column in the utility model.

[0017] Figure 3 It is Figure 2 The partial enlarged view at A in

[0018] Figure 4 It is a schematic structural diagram of the reflective column in the utility model.

[0019] Figure 5 It is a schematic structural diagram of the protective net in the utility model.

[0020] Figure 6 It is the second schematic structural diagram of the upright column in the utility model.

[0021] Figure 7 It is Figure 6 The sectional view at B-B in

[0022] Figure 8 This is a schematic structural view of the blocking mechanism in the present utility model. Specific Embodiments

[0023] Now, various exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and does not constitute any limitation on the present utility model and its application or use. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present utility model thorough and complete, and to fully convey the scope of the present utility model to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the compositions of materials, numerical expressions, and numerical values set forth in these embodiments should be construed as merely exemplary and not as limitations.

[0024] The "first", "second", and similar terms used in the present utility model do not denote any order, quantity, or importance, but are merely used to distinguish different parts. Terms such as "including" or "comprising" mean that the elements before the term cover the elements listed after the term, and do not exclude the possibility of also covering other elements. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0025] As Figures 1 to 8 shown, a highway bridge foundation pit protection device includes: a column 1, upper insertion cylinders 12 and lower insertion cylinders 11 are correspondingly arranged up and down around the column 1, and a lifting drive mechanism 7 for driving the upper insertion cylinder 12 to move up and down is arranged inside the upper end of the column 1; a protection net 2, the protection net 2 has a support frame 21, a mesh 22 is arranged inside the support frame 21, upper hooks 23 and lower hooks 24 are symmetrically arranged up and down at both ends of the support frame 21, the end of the upper hook 23 faces upward, and the end of the lower hook 24 faces; the upper hook 23 corresponds to the upper insertion cylinder 12, and the lower hook 24 corresponds to the lower insertion cylinder 11; in this embodiment, when connecting the protection net 2 and the column 1, first insert the lower hook 24 into the lower insertion cylinder 11 for positioning, and then control the lifting drive mechanism 7 to drive the upper insertion cylinder 12 to descend, and sleeve the upper insertion cylinder 12 outside the upper hook 23 to realize the fixed connection between the protection net 2 and the column 1, without the need for additional tools, which is convenient for disassembly and assembly; the upper insertion cylinder 12 and the lower insertion cylinder 11 are respectively limited above the upper hook 23 and below the lower hook 24, improving the connection stability. When the protection net 2 shakes, the upper hook 23 and the lower hook 24 are not easily disengaged from the inside of the upper insertion cylinder 12 and the lower insertion cylinder 11.

[0026] In some embodiments, as a specific implementation manner of the lifting drive mechanism 7, as Figure 6 and7 As shown, the lifting drive mechanism 7 has a screw rod 71 rotatably arranged inside the upper end of the column 1, and a lifting block 72 threadedly connected to the screw rod 71 is slidably arranged inside the column 1. Slide grooves 73 corresponding to the upper insert cylinder 12 are opened around the column 1, and sliders 74 slidably connected to the slide grooves 73 are fixedly arranged around the lifting block 72. The upper insert cylinder 12 is fixed on the slider 74 at one end away from the lifting block 72. The screw rod 71 is rotated, and the threaded structure between the screw rod 71 and the lifting block 72 drives the lifting block 72 to move up and down. During the movement of the lifting block 72, the slider 74 is driven to move inside the slide groove 73, and the upper insert cylinder 12 is driven to move up and down at the same time, so that the upper insert cylinder 12 can be put on the outside of the upper hook 23 or removed upward from the outside of the upper hook 23.

[0027] In some embodiments, the upper end of the screw rod 71 is detachably provided with a reflective column 6, and a reflective sticker 61 is provided on the outer side of the reflective column 6. The reflective column 6 can reflect light when illuminated by vehicles at night, so as to remind passing vehicles to pay attention and avoid them in time, thereby improving safety. At the same time, the reflective column 6 is convenient for the operator to hold and rotate the screw rod 71 to realize the up and down movement adjustment of the upper insert tube 12.

[0028] In some embodiments, Figure 3 and 4 As shown, as a specific connection method between the reflective column 6 and the screw rod 71 , a cross plug plate 4 is fixedly provided on the upper end of the screw rod 71 , and a cross slot 62 matching the cross plug plate 4 is opened at the bottom end of the reflective column 6 .

[0029] In some embodiments, Figure 3 and 8As shown, a stop mechanism 5 corresponding to the cross-shaped insertion plate 4 is provided at the upper end of the column 1. The stop mechanism 5 has a support cylinder 53 arranged inside the upper end of the column 1. A sliding disk 52 is slidably arranged inside the support cylinder 53. A spring 54 is arranged between the bottom of the sliding disk 52 and the inner bottom of the support cylinder 53. A stop bolt 51 is fixedly arranged at the top of the sliding disk 52, and the stop bolt 51 corresponds to the cross-shaped insertion plate 4. Among them, the lower part of the sliding disk 52 is supported by the elastic force of the spring 54, so that the stop bolt 51 extends upward from the upper end of the column 1, pushing the reflective column 6 inserted on the cross-shaped insertion plate 4 to move upward, forming a block on the cross-shaped insertion plate 4, restricting the rotation of the cross-shaped insertion plate 4, thereby restricting the rotation of the screw 71, so that the upper insertion cylinder 12 is stably sleeved outside the upper hanging buckle 23, ensuring the stability of the connection. When it is necessary to rotate the screw 71 for installation or disassembly, the reflective column 6 is pressed down. The reflective column 6 moves downward along the cross-shaped insertion plate 4, pressing against the stop bolt 51 to drive the sliding disk 52 to move downward and compress the spring 54. The stop bolt 51 no longer forms a block on the cross-shaped insertion plate 4. At this time, the cross-shaped insertion plate 4 and the screw 71 can be rotated through the reflective column 6 to adjust the up and down movement of the lifting block 72 and the upper insertion cylinder 12. After the adjustment is completed, the reflective column 6 is released, and the spring 54 resets, pushing the sliding disk 52, the stop bolt 51 and the reflective column 6 to move upward, and the stop bolt 51 resumes blocking the cross-shaped insertion plate 4.

[0030] In some embodiments, a base 3 is fixedly arranged at the bottom of the column 1, and the base 3 is installed and fixed on the ground during use.

[0031] So far, the embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details well known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed here based on the above description.

[0032] The above-described embodiments only represent some implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A highway bridge foundation pit protection device, characterized in that: include: A column, wherein an upper inserting tube and a lower inserting tube are arranged correspondingly around the upper and lower sides of the column, and a lifting driving mechanism for driving the upper inserting tube to move up and down is arranged inside the upper end of the column; A protective net, the protective net having a support frame, a mesh sheet is arranged inside the support frame, upper hooks and lower hooks are symmetrically arranged at both ends of the support frame, the end of the upper hook faces upward, and the end of the lower hook faces downward; The upper hook corresponds to the upper inserting tube, and the lower hook corresponds to the lower inserting tube.

2. The highway bridge foundation pit protection device according to claim 1 is characterized in that: The lifting drive mechanism comprises a screw rod rotatably arranged inside the upper end of the column, a lifting block threadably connected to the screw rod is slidably arranged inside the column, sliding grooves corresponding to the upper insert cylinder are opened around the column, sliding blocks slidably connected to the sliding grooves are fixedly arranged around the lifting block, and the upper insert cylinder is fixed on the sliding block at one end away from the lifting block.

3. The highway bridge foundation pit protection device according to claim 2 is characterized in that: The upper end of the screw rod is detachably provided with a reflective column, and the outer side of the reflective column is provided with a reflective sticker.

4. The highway bridge foundation pit protection device according to claim 3 is characterized in that: A cross plug plate is fixedly arranged on the upper end of the screw rod, and a cross slot matching the cross plug plate is opened at the bottom end of the reflective column.

5. The highway bridge foundation pit protection device according to claim 4 is characterized in that: A stopping mechanism corresponding to the cross plug plate is arranged at the upper end of the column, and the stopping mechanism has a supporting tube arranged inside the upper end of the column, a sliding plate is slidably arranged inside the supporting tube, a spring is arranged between the bottom of the sliding plate and the inner bottom of the supporting tube, and a stopping bolt is fixedly arranged on the top of the sliding plate, and the stopping bolt corresponds to the cross plug plate.

6. The highway bridge foundation pit protection device according to claim 1 is characterized by: A base is fixedly arranged at the bottom of the column.

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