Municipal trench edge assembly type protection device

Abstract

The utility model relates to the field of municipal construction protection technology, in particular to a municipal trench edge assembly type protection device which comprises a telescopic protective fence with a transverse telescopic function, the telescopic protective fence comprises a vertical rod, a foldable supporting assembly is arranged at the bottom of the vertical rod, and the foldable supporting assembly comprises two symmetrically-arranged supporting legs. Limiting boxes used for limiting the rotation angles of the supporting legs are hinged to the tops of the supporting legs and fixedly connected with the bottoms of the vertical rods. When the supporting legs are not used, the two supporting legs are arranged in parallel, and when the supporting legs are used, the two supporting legs are arranged in a splayed shape. The protection device can assist a construction site in safety management and has the advantages of being convenient to mount and dismount, rapid in turnover transportation, safe, reliable and high in universality. Construction safety can be effectively guaranteed, personnel and objects are prevented from falling accidentally, casualty accidents are avoided, and the application prospect is wide.

Description

Technical Field

[0001] This utility model relates to the field of municipal construction protection technology, and in particular to a prefabricated protective device for the edge of municipal trenches. Background Technology

[0002] Trench construction is a common operation in municipal engineering projects. During trench construction and before backfilling, there are significant safety hazards at the edges of the trench, such as people accidentally falling or objects rolling into the trench, which may threaten the lives of construction workers and pedestrians in the vicinity.

[0003] Traditional protective structures often use simple barriers or railings, which are often not securely installed and are prone to tipping over when subjected to external forces (such as vehicle collisions or strong winds), failing to effectively protect personnel safety. Furthermore, most protective structures are designed for trenches of specific sizes and are not adaptable to trenches of different widths, making it difficult to meet diverse construction needs. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the present invention provides a prefabricated protective device for the edge of municipal trenches.

[0005] The present invention provides a prefabricated protective device for the edge of municipal trenches, which adopts the following technical solution:

[0006] A prefabricated protective device for the edge of a municipal trench includes a retractable guardrail with lateral telescopic function. The retractable guardrail includes a pole, and a foldable support assembly is provided at the bottom of the pole. The foldable support assembly includes two symmetrically arranged legs. A limiting box for limiting the rotation angle of the legs is hinged to the top of the legs and fixed to the bottom of the pole. When the legs are not in use, the two legs are arranged in parallel. When the legs are in use, the two legs are arranged in a V-shape.

[0007] By adopting the above technical solution, the protective device can assist in the safety management of the construction site. It features convenient installation and disassembly, quick turnover and transportation, safety and reliability, and strong versatility. It can effectively ensure construction safety, prevent personnel and objects from falling accidentally, avoid accidental injuries and deaths, and has a wide range of application prospects.

[0008] Optionally, the limiting box includes two symmetrically arranged box side plates, the bottom of the upright is located between the two box side plates and fixed by a fixed shaft, the top of the support leg is located between the two box side plates and hinged by a limiting shaft, and a limiting block is fixedly attached to the top of the support leg and movably mounted on the bottom side wall of the upright.

[0009] By adopting the above technical solution, when the outrigger is rotated, the limiting block on the outrigger abuts against the bottom side wall of the upright, thereby restricting the outrigger from continuing to rotate and playing a stabilizing role. The outrigger is easy to fold and unfold, has strong stability, and is easy to use in actual operation.

[0010] Optionally, several telescopic poles are evenly connected horizontally between the uprights.

[0011] By adopting the above technical solution, the telescopic pole not only serves as a connector but also provides a telescopic effect, allowing for changes in the overall length of the telescopic guardrail.

[0012] Optionally, the telescopic rod includes a horizontal bar fixed to the upright, the horizontal bar having a cavity inside, a connecting rod passing through two adjacent horizontal bars at the same height, multiple limiting holes evenly opened on the horizontal bar, and a limiting button driven by a spring installed on the connecting rod, the limiting button being detachably locked in the limiting hole.

[0013] By adopting the above technical solution, the connecting rod moves within the cavity of the crossbar, while the limiting button enters the corresponding limiting hole under the drive of the spring, thereby fixing the crossbar and the connecting rod. This telescopic rod is easy to operate and has a stable structure.

[0014] Optionally, a connecting component is provided between two adjacent retractable guardrails.

[0015] By adopting the above technical solution, the connecting component is used to connect two adjacent retractable guardrails, thereby facilitating the adaptive connection of multiple retractable guardrails into a whole according to the trench length.

[0016] Optionally, the connecting components include a locking block fixed to the side wall of one of the uprights and a locking slot opened on the side wall of the other upright. The locking block and the locking slot on the same retractable guardrail are arranged opposite to each other, and two adjacent retractable guardrails are spliced ​​together by the cooperation of the locking block and the locking slot.

[0017] By adopting the above technical solution, the card blocks can be inserted into the corresponding card slots to connect two adjacent retractable guardrails. The operation is very simple and quick.

[0018] In summary, this utility model has at least one of the following beneficial technical effects:

[0019] This protective device can assist in safety management at the construction site and features convenient installation and disassembly, quick turnover and transportation, safety and reliability, and strong versatility.

[0020] This protective device can effectively ensure construction safety, prevent personnel and objects from falling accidentally, and avoid accidental injuries and deaths. It has broad application prospects. Attached Figure Description

[0021] Figure 1This is a structural schematic diagram of the municipal trench edge-mounted protective device in use according to an embodiment of this utility model.

[0022] Figure 2 This is a structural schematic diagram of the municipal trench edge-mounted protective device in an unused state according to an embodiment of this utility model.

[0023] Figure 3 This is a schematic diagram of the structure of the limiting box according to an embodiment of the present utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Retractable guardrail; 10. Upright post; 11. Horizontal bar; 110. Limiting hole; 12. Connecting rod; 120. Limiting button; 2. Foldable support assembly; 20. Support leg; 200. Limiting block; 21. Limiting box; 210. Box side plate; 211. Fixed shaft; 212. Limiting shaft; 3. Connecting assembly; 30. Locking block; 31. Locking groove. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 The present invention will be described in further detail below.

[0026] This utility model discloses a prefabricated protective device for the edge of municipal trenches. (Refer to...) Figure 1 and Figure 2 The municipal trench edge prefabricated protection device includes a retractable guardrail 1 with lateral telescopic function, a foldable support component 2 installed at the bottom of the retractable guardrail 1, and a connecting component 3 for connecting two adjacent retractable guardrails 1.

[0027] Reference Figure 1 and Figure 2 The retractable guardrail 1 includes two vertically arranged uprights 10, with multiple horizontally arranged crossbars 11 evenly fixed to the uprights 10. Each crossbar 11 has a cavity and multiple limiting holes 110 evenly formed along its length. A connecting rod 12 is installed between two adjacent crossbars 11 at the same height. A spring-driven limiting button 120 is installed on the connecting rod 12. The limiting button 120 is adapted to and detachably locked into the limiting hole 110. By locking the limiting button 120 into different limiting holes 110, the lateral length of the retractable guardrail 1 can be changed. The crossbars 11 and the connecting rod 12 form a telescopic rod structure.

[0028] Reference Figure 1 and Figure 3The foldable support assembly 2 includes two symmetrically arranged support legs 20, with a limiting box 21 connecting the top of the support legs 20 to the bottom of the upright 10. The limiting box 21 includes two symmetrically arranged box side plates 210. The bottom of the upright 10 is fixed between the two box side plates 210 via a fixing shaft 211, and the support legs 21 are hinged between the two box side plates 210 via limiting shafts 212. There is friction between the support legs 21 and the box side plates 210. The fixing shaft 211 and the two limiting shafts 212 are arranged in an isosceles triangle. A limiting block 200 for limiting the rotation angle of the support legs 20 is fixedly connected to the top of the support legs 20. The limiting block 200 has a right-angled triangular cross section and is movably mounted on the bottom side wall of the upright 10.

[0029] Reference Figure 1 and Figure 2 The connecting component 3 includes a locking block 30, which has a wedge-shaped cross-section. The locking block 30 is fixed to the side wall of one of the uprights 10 and located on the side opposite to the other upright. The other upright 10 has a slot 31 vertically opened on the side wall opposite to the locking block 30, which is adapted to the locking block 30. Two adjacent retractable guardrails 1 are spliced ​​by the insertion and cooperation of the locking block 30 and the slot 31, so that multiple retractable guardrails 1 can be spliced ​​according to the length of the trench.

[0030] The implementation principle of the municipal trench edge prefabricated protection device of this utility model embodiment is as follows: Construction personnel can adjust the limit button 120 into different limit holes 110 according to the actual situation, thereby changing the lateral length of the retractable guardrail 1. When using this protection device, the two parallel legs 20 are pried apart in opposite directions until the limit block 200 abuts against the bottom of the upright 10, so that the legs 20 and the upright 10 form a 45° angle, and the two legs 20 are arranged in a figure-eight shape, thereby making the retractable guardrail 1 stably erected on the ground.

[0031] When the protective device is not needed, it can be folded by bending the two support legs 20 towards each other for easy storage and transportation. When one protective device is insufficient, construction workers can use the locking blocks 30 and slots 31 to connect and splice multiple protective devices until the requirements are met, thus ensuring the safety of the edge of the municipal trench.

[0032] This protective device can assist in safety management at construction sites. It features convenient installation and disassembly, quick turnover and transportation, safety and reliability, and strong versatility. It can also effectively ensure construction safety, prevent personnel and objects from falling accidentally, and avoid accidental injuries and deaths. It has a wide range of application prospects.

[0033] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A prefabricated protective device for the edge of a municipal trench, characterized in that: The retractable guardrail (1) includes a pole (10) with a lateral telescopic function. The retractable guardrail (1) includes a pole (10) with a foldable support assembly (2) at the bottom of the pole (10). The foldable support assembly (2) includes two symmetrically arranged legs (20). The top of the legs (20) is hinged with a limiting box (21) for limiting the rotation angle of the legs (20). The limiting box (21) is fixed to the bottom of the pole (10). When the legs (20) are not in use, the two legs (20) are arranged in parallel. When the legs (20) are in use, the two legs (20) are arranged in a figure-eight shape.

2. The prefabricated protective device for the edge of municipal trenches according to claim 1, characterized in that: The limiting box (21) includes two symmetrically arranged box side plates (210). The bottom of the upright (10) is located between the two box side plates (210) and is fixed by a fixing shaft (211). The top of the support leg (20) is located between the two box side plates (210) and is hinged by a limiting shaft (212). A limiting block (200) is fixedly attached to the top of the support leg (20) and is movably mounted on the bottom side wall of the upright (10).

3. The prefabricated protective device for the edge of municipal trenches according to claim 1, characterized in that: Several telescopic rods are evenly connected horizontally between the uprights (10).

4. The prefabricated protective device for the edge of municipal trenches according to claim 3, characterized in that: The telescopic pole includes a horizontal bar (11) fixed to the upright (10). The horizontal bar (11) has a cavity. A connecting rod (12) passes between two adjacent horizontal bars (11) at the same height. Multiple limiting holes (110) are evenly opened on the horizontal bar (11). A limiting button (120) driven by a spring is installed on the connecting rod (12). The limiting button (120) can be detachably locked in the limiting hole (110).

5. The prefabricated protective device for the edge of municipal trenches according to any one of claims 1-4, characterized in that: A connecting component (3) is provided between two adjacent retractable guardrails (1).

6. The prefabricated protective device for the edge of municipal trenches according to claim 5, characterized in that: The connecting component (3) includes a locking block (30) fixed to the side wall of one of the uprights (10) and a locking groove (31) opened on the side wall of the other upright (10). The locking block (30) and the locking groove (31) on the same retractable guardrail (1) are arranged opposite to each other, and two adjacent retractable guardrails (1) are spliced ​​together by the cooperation of the locking block (30) and the locking groove (31).

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