Guardrail for municipal road and bridge construction

Abstract

The utility model discloses a guardrail for municipal road and bridge construction, which belongs to the technical field of guardrails for construction and comprises a mounting frame distributed left and right, positioning holes are formed in two sides of one end of the mounting frame, a mounting groove is formed in one end of the mounting frame, a protective net is mounted in the mounting groove through a winding component, and the winding component comprises a winding drum and a rotating shaft. The winding drum is rotationally mounted in the mounting groove, the rotating shaft is rotationally mounted at the upper end of the mounting frame, one end of the rotating shaft is fixedly connected with the winding drum, circular holes are formed in the upper end of the mounting frame in a circumferential array mode, a positioning rod is inserted into the upper end of a circular plate, connecting plates are fixedly mounted at one end of the protective net and detachably connected, and a telescopic plate is hinged to one end of the mounting frame. The free end of the telescopic plate is detachably connected to one end of the connecting plate, the overall length of the guardrail is adjusted in real time by adjusting the length of the protective net, the use flexibility is improved, the protective net is stored in the mounting groove, small transportation space is occupied during transportation, and transportation is convenient.

Description

Technical Field

[0001] This utility model specifically relates to a guardrail for municipal road and bridge construction, belonging to the technical field of construction guardrails. Background Technology

[0002] When municipal roads and bridges are under construction, guardrails need to be installed to shield the roads and construction sites, thereby enhancing the safety of pedestrians and protecting construction equipment, preventing vehicles from accidentally entering the construction area, and also playing a certain role in isolating dust to prevent large amounts of dust from the construction site from flying out and polluting the roads.

[0003] For example, announcement number CN214740431U describes a guardrail for municipal road and bridge construction, comprising multiple interconnected guardrail units. Each guardrail unit includes: a lower guardrail, comprising two vertically arranged first frame sleeves; an upper guardrail, comprising two second frame sleeves slidably mounted on the two first frame sleeves, with a locking bolt screwed onto the side wall of each of the two first frame sleeves, one end of which abuts against the second frame sleeve; and a splicing assembly, comprising a sleeve fixedly installed on one of the first frame sleeves, and an insert fixedly provided on the other first frame sleeve for insertion into the sleeve on an adjacent guardrail unit, the sleeve having a through hole on its side wall. This utility model provides a secure connection and convenient assembly and disassembly. Furthermore, by interlocking two sets of guardrails vertically, the height of the guardrails can be adjusted according to the actual situation, effectively preventing non-construction personnel from climbing over them.

[0004] While common guardrails used in municipal road and bridge construction can be adjusted in height to prevent non-construction personnel from climbing over, their length is generally fixed and not easily adjustable. This results in poor flexibility in their use and makes them inconvenient to transport, occupying a significant amount of transport space. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a guardrail for municipal road and bridge construction, which allows for adjustment of the guardrail's length and facilitates transportation.

[0006] This utility model achieves the above-mentioned objectives through the following technical solution: a guardrail for municipal road and bridge construction, comprising mounting frames distributed on the left and right, positioning holes on both sides of one end of the mounting frame, and a mounting groove at one end of the mounting frame. A protective net is installed in the mounting groove through a winding assembly. A connecting plate is fixedly installed at one end of the protective net, and the connecting plates are detachably connected to each other. A telescopic plate is hinged to one end of the mounting frame, and the free end of the telescopic plate is detachably connected to one end of the connecting plate. During use, the telescopic plate can extend and retract, and an internal limiting structure is provided to prevent separation. The protective net can be made of aluminum alloy and is used to shield roads and construction sites. The winding assembly is used to wind up the protective net, the positioning holes are used to fix the mounting frame, and the mounting groove is used to store the protective net. Two mounting frames are provided.

[0007] Furthermore, in order to limit the position of the protective net, a square plate with a square hole at one end is fixedly installed at one end of the mounting groove, and one end of the protective net is inserted into the square hole, allowing the protective net to move within the square hole.

[0008] Furthermore, in order to enable the winding drum to rotate, the winding assembly includes a winding drum and a rotating shaft with a circular plate mounted on one end. The winding drum is rotatably mounted in the mounting groove, and the rotating shaft is rotatably mounted on the upper end of the mounting frame. One end of the rotating shaft is fixedly connected to the winding drum, and the circular plate is fixedly mounted on one end of the rotating shaft.

[0009] Furthermore, in order to fix the winding drum, the upper end of the mounting frame is provided with circular holes arranged in a circumferential array, and a positioning rod is inserted into the upper end of the circular plate. One end of the positioning rod extends into the circular hole, and the positioning rod is used to limit the position of the circular plate.

[0010] Furthermore, in order to store the protective net, one end of the protective net is fixedly connected to the winding drum.

[0011] Furthermore, in order to connect the connecting plates on both sides, one end of the connecting plate is provided with a square groove distributed vertically, and a square block is fixedly installed on one end of the connecting plate on the other side. One end of the square block is installed in the square groove by bolts, and the size of the square block matches the size of the square groove.

[0012] Furthermore, in order to fix the protective net, a positioning screw is rotatably installed on the free end of the telescopic plate, and a positioning screw hole is opened at one end of the connecting plate. One end of the positioning screw extends into the positioning screw hole, and the positioning screw is used to limit the position of the telescopic plate.

[0013] Furthermore, in order to fix the telescopic plate, a magnet is fixedly installed inside one end of the square plate, and the magnet is attracted to the telescopic plate.

[0014] The technical effects and advantages of this utility model are as follows: When in use, the overall length of the guardrail can be adjusted in real time by adjusting the length of the protective net, which improves the flexibility of the guardrail during use. It can also store the protective net in the installation slot, which occupies less transportation space and is convenient to transport. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the protective netting connection structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall storage structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the winding assembly structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure of the connecting plate of this utility model;

[0020] Figure 6 This is a schematic diagram of the telescopic plate structure of this utility model.

[0021] In the diagram: 1. Mounting bracket; 2. Positioning hole; 3. Mounting groove; 4. Rewinding assembly; 401. Rewinding drum; 402. Circular plate; 403. Rotating shaft; 404. Circular hole; 405. Positioning rod; 5. Protective net; 6. Connecting plate; 7. Telescopic plate; 8. Square hole; 9. Square plate; 10. Square groove; 11. Square block; 12. Positioning screw; 13. Magnet; 14. Bolt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-6As shown, a guardrail for municipal road and bridge construction includes a mounting frame 1 distributed on the left and right. Positioning holes 2 are provided on both sides of one end of the mounting frame 1. A mounting groove 3 is provided at one end of the mounting frame 1, and a protective net 5 is installed in the mounting groove 3 via a winding assembly 4. A connecting plate 6 is fixedly installed at one end of the protective net 5, and the connecting plates 6 are detachably connected to each other. A telescopic plate 7 is hinged to one end of the mounting frame 1, and the free end of the telescopic plate 7 is detachably connected to one end of the connecting plate 6. A square plate 9 with a square hole 8 at one end is fixedly installed at one end of the mounting groove 3, and one end of the protective net 5 is inserted into the square hole 8. A vertically distributed square groove 10 is provided at one end of the connecting plate 6, and the other end of the connecting plate 6 is fixedly installed... A square block 11 is installed, with one end of the square block 11 installed in a square groove 10 by a bolt 14. A positioning screw 12 is rotatably installed on the free end of the telescopic plate 7. A positioning screw hole is opened at one end of the connecting plate 6, and one end of the positioning screw 12 extends into the positioning screw hole. A magnet 13 is fixedly installed inside one end of the square plate 9, and the magnet 13 is attracted to the telescopic plate 7. When in use, first fix the mounting frame 1 to the corresponding position in the municipal road and bridge construction through the positioning hole 2, then manually release the fixing effect on the protective net 5 through the winding assembly 4, and then manually move the protective net 5 towards each other until the connecting plate 6 at one end of the protective net 5 contacts each other. At this time, the protective net 5 is at one end of the square plate 9. The protective netting 5 moves within the square hole 8, which serves as a guide and limiter, ensuring smooth movement. Then, the square block 11 at one end of the connecting plate 6 is inserted into the square groove 10 at the other end of the connecting plate 6, and secured with bolts 14. Next, the telescopic plate 7 is manually rotated upwards, and its free end is manually moved. Then, the positioning screw 12 is manually rotated to move one end into the positioning screw hole at one end of the connecting plate 6, thus fixing the free end of the telescopic plate 7 to one end of the connecting plate 6. This reinforces the protective netting 5, preventing twisting and allowing for real-time adjustment of the overall length of the fence by adjusting the length of the protective netting 5, improving the flexibility of the fence during use. When the construction is completed and transportation is required, manually turn the positioning screw 12 to move one end out of the positioning screw hole, releasing the fixing effect on the free end of the telescopic plate 7. Then, retract the telescopic plate 7 and move it downwards. The magnet 13 set inside one end of the square plate 9 fixes the telescopic plate 7 to prevent it from moving during transportation. Then, manually release the fixing effect between the connecting plates 6 by the bolt 14. The square block 11 then detaches from the square groove 10. Then, the protective net 5 is rolled up by the winding assembly 4, so that the protective net 5 is stored in the installation groove 3. This reduces the transportation space required during transportation and facilitates transportation.

[0024] The winding assembly 4 includes a winding drum 401 and a rotating shaft 403 with a circular plate 402 mounted on one end. The winding drum 401 is rotatably mounted in the mounting groove 3, and the rotating shaft 403 is rotatably mounted on the upper end of the mounting frame 1. One end of the rotating shaft 403 is fixedly connected to the winding drum 401. The upper end of the mounting frame 1 has circular holes 404 arranged in a circumferential array. A positioning rod 405 is inserted into the upper end of the circular plate 402, with one end of the positioning rod 405 extending into the circular hole 404. One end of the protective net 5 is fixedly connected to the winding drum 401. During use, when installing, the positioning rod 405 is manually moved upward to remove one end from the circular hole 404, thus releasing the fixation on the winding drum 401. The protective net 5 is then manually moved to one side to shield the road and construction site. At this time, the winding drum 401 and the rotating shaft 403 rotate accordingly. When the construction is completed and the guardrail needs to be transported, the circular plate 402 is manually rotated first, which drives the rotating shaft 403 to rotate. The winding drum 401 rotates accordingly, thereby moving the protective net 5 and winding it to the outside of the winding drum 401. After winding, one end of the positioning rod 405 is manually inserted into the circular hole 404 to fix the circular plate 402, preventing the circular plate 402 and the winding drum 401 from rotating during transportation. This achieves the goal of occupying less transportation space and facilitating transportation.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A guardrail for construction of municipal roads and bridges, comprising mounting frames (1) arranged on the left and right sides, wherein positioning holes (2) are provided on both sides of one end of the mounting frame (1), characterized in that: The mounting frame (1) has a mounting groove (3) at one end. A protective net (5) is installed in the mounting groove (3) through a winding assembly (4). A connecting plate (6) is fixedly installed at one end of the protective net (5). The connecting plates (6) are detachably connected to each other. A telescopic plate (7) is hinged to one end of the mounting frame (1). The free end of the telescopic plate (7) is detachably connected to one end of the connecting plate (6).

2. The guardrail for municipal road and bridge construction as described in claim 1, characterized in that: One end of the mounting groove (3) is fixedly installed with a square plate (9) having a square hole (8) at one end, and one end of the protective net (5) is inserted into the square hole (8).

3. The guardrail for municipal road and bridge construction as described in claim 1, characterized in that: The winding assembly (4) includes a winding drum (401) and a rotating shaft (403) with a circular plate (402) mounted on one end. The winding drum (401) is rotatably mounted in the mounting groove (3), and the rotating shaft (403) is rotatably mounted on the upper end of the mounting frame (1). One end of the rotating shaft (403) is fixedly connected to the winding drum (401).

4. The guardrail for municipal road and bridge construction as described in claim 3, characterized in that: The mounting bracket (1) has circular holes (404) arranged in a circular array on its upper end. A positioning rod (405) is inserted into the upper end of the circular plate (402), and one end of the positioning rod (405) extends into the circular hole (404).

5. The guardrail for municipal road and bridge construction as described in claim 4, characterized in that: One end of the protective net (5) is fixedly connected to the winding drum (401).

6. The guardrail for municipal road and bridge construction as described in claim 1, characterized in that: One end of the connecting plate (6) has a square groove (10) distributed vertically, and a square block (11) is fixedly installed on one end of the connecting plate (6) on the other side. One end of the square block (11) is installed in the square groove (10) by bolts (14).

7. The guardrail for municipal road and bridge construction as described in claim 1, characterized in that: The telescopic plate (7) is rotatably mounted with a positioning screw (12) at its free end. The connecting plate (6) has a positioning screw hole at one end, and one end of the positioning screw (12) extends into the positioning screw hole.

8. The guardrail for municipal road and bridge construction as described in claim 2, characterized in that: A magnet (13) is fixedly installed inside one end of the square plate (9), and the magnet (13) is attracted to the telescopic plate (7).

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