Prefabricated guardrail

Abstract

The utility model relates to the technical field of prefabricated guardrails, and discloses a prefabricated guardrail which comprises a prefabricated guardrail body and first positioning shells fixed to the upper portion and the lower portion of one side of the prefabricated guardrail body, and further comprises second positioning shells fixed to the upper portion and the lower portion of the other side of the prefabricated guardrail body, and positioning mechanisms are arranged in the first positioning shells; the first positioning shells and the second positioning shells on the adjacent sides of the two prefabricated guardrail bodies are attached to each other, so that assemblies of the two positioning mechanisms in the prefabricated guardrail bodies are clamped and fixed to each other, the prefabricated guardrail bodies are spliced and installed, the splicing efficiency of workers is improved, and the labor intensity of workers is reduced. And meanwhile, the supporting legs are supported through cooperation of the supporting mechanisms and the guide rods, the supporting area of the prefabricated guardrail body is increased, the supporting effect is improved, meanwhile, the contact area with concrete is increased, the fixing effect on the prefabricated guardrail body is improved, and the problems that when an existing prefabricated guardrail is installed, splicing is inconvenient, and the fixing effect is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated guardrails, in particular to a prefabricated guardrail. Background Art

[0002] Guardrails are usually installed on both sides of logistics channels, around production equipment, in building corners, on both sides of doors and on the edges of cargo platforms, etc. They are mainly used for the protection and protection of equipment and facilities in roads, factories, communities, villas, courtyards, commercial areas, public places and other occasions. They have wide application value in the field of bridge construction and construction research. The construction accuracy of guardrails and internal and external quality control will directly affect the protective effect and construction efficiency of the guardrails. Therefore, it is necessary to conduct in-depth research on its key construction technologies to lay the foundation for promotion and application.

[0003] At present, the prefabricated guardrails on both sides of the bridge are made by embedding the cross bar on the side of one prefabricated guardrail body into the limit hole on the adjacent side of the other prefabricated guardrail body. However, this splicing method requires the staff to carry one prefabricated guardrail body for a long time to align it with the other prefabricated guardrail body, which is troublesome to splice. In addition, the prefabricated guardrail body is large in size and difficult to carry. The labor intensity of the staff is high, and it is not convenient to assemble. After successful installation, it is not convenient to disassemble. Both assembly and disassembly are troublesome, which causes great inconvenience to the staff.

[0004] After the prefabricated guardrail is spliced, it is usually necessary to pour concrete on its bottom to fix it. However, the current prefabricated guardrail has a small bottom support area and poor support effect. If the guardrail is affected by strong external factors, it may tilt and collapse, thereby affecting the protective effect. At the same time, when the prefabricated guardrail is used for a long time, its bottom may become loose, posing a major safety hazard. Utility Model Content

[0005] The purpose of the utility model is to provide a prefabricated guardrail to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a prefabricated guardrail, comprising a prefabricated guardrail body and a first positioning shell fixed at two upper and lower positions on one side thereof, and further comprising: a second positioning shell fixed at two upper and lower positions on the other side of the prefabricated guardrail body, a positioning mechanism is arranged inside the first positioning shell, a limiting rod is installed inside the positioning mechanism, a pull ring is fixedly connected to the top of the limiting rod, and through holes are opened on the tops of the first positioning shell and the second positioning shell;

[0007] A fixing plate is fixed to the bottom of the columns on both sides of the prefabricated guardrail body, the surface of the fixing plate is fixedly connected with a U-shaped block, the inner wall of the U-shaped block is hinged with a supporting leg, the middle of the bottom of the fixing plate is fixedly connected with a guide rod, and a supporting mechanism is arranged inside the supporting leg.

[0008] Preferably, the positioning mechanism includes a mounting shell fixed to one side of the inner wall of the first positioning shell and a clamping block rotatable on one side of the inner wall thereof, and also includes a positioning groove opened on one side of the surface of the clamping block and a limiting groove opened on one side of the surface of the mounting shell.

[0009] Preferably, the support mechanism includes a storage groove opened on the inner surface of the support leg and a connecting rod hinged at the lower inner part thereof, and also includes a sleeve hinged to the inner wall of one end of the connecting rod and slidably connected to the guide rod.

[0010] Preferably, the opening on one side of the second positioning shell corresponds to the opening on one side of the first positioning shell in horizontal position and are symmetrically arranged with each other.

[0011] Preferably, the number of the U-shaped blocks is four and is consistent with the number of the supporting legs, and is evenly distributed on the surface of the fixing plate.

[0012] Preferably, the distance from the center point of the hinge between the clamping block and the mounting shell to the center point of the positioning groove is the same as the distance to the center point of the limiting groove, and the inner diameters of the positioning groove and the limiting groove are the same.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model makes the components of the two internal positioning mechanisms clamped and fixed to each other by fitting the first positioning shell and the second positioning shell on the adjacent sides of the two prefabricated guardrail bodies together, so that a plurality of prefabricated guardrail bodies can be spliced ​​and installed in this way, which is convenient for splicing the prefabricated guardrail bodies and improves the splicing efficiency of the prefabricated guardrail bodies by the workers. At the same time, the supporting mechanism and the guide rod are used to support the supporting legs, so that the supporting area of ​​the prefabricated guardrail body is increased, and the supporting effect of the prefabricated guardrail body is effectively improved. The contact area with concrete is increased during pouring, and the fixing effect of the prefabricated guardrail body is improved, which solves the problem that the current prefabricated guardrails are inconvenient to splice and have poor fixing effect during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of a partial three-dimensional cross-sectional structure in the utility model;

[0017] Figure 3 It is a schematic diagram of a partially unfolded three-dimensional structure of the utility model;

[0018] Figure 4 It is a schematic diagram of a partial three-dimensional structure in the utility model;

[0019] Figure 5It is a schematic diagram of a partially folded three-dimensional structure in the utility model.

[0020] In the figure: 1. prefabricated guardrail body; 2. first positioning shell; 3. second positioning shell; 4. positioning mechanism; 41. mounting shell; 42. clamping block; 43. positioning groove; 44. limiting groove; 5. limiting rod; 6. pull ring; 7. through hole; 8. fixing plate; 9. U-shaped block; 10. supporting leg; 11. guide rod; 12. supporting mechanism; 121. storage groove; 122. connecting rod; 123. sleeve. DETAILED DESCRIPTION

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

[0022] See also Figure 1-5As shown, a prefabricated guardrail comprises a prefabricated guardrail body 1, the material of the prefabricated guardrail body 1 is concrete, the prefabricated guardrail body 1 is used to protect part of the site to ensure the personal safety of personnel, the upper and lower parts of one side of the prefabricated guardrail body 1 are fixedly connected with a first positioning shell 2, the first positioning shell 2 is used to position the internal parts, the upper and lower parts of the other side of the prefabricated guardrail body 1 are fixedly connected with a second positioning shell 3, the opening of one side of the second positioning shell 3 corresponds to the horizontal position of the opening of one side of the first positioning shell 2, and they are symmetrically arranged, the interior of the first positioning shell 2 is provided with a positioning mechanism 4, the positioning mechanism 4 is used in pairs, and the positioning mechanism 4 on the other side is fixedly connected with the second positioning shell 3. The structure 4 is located inside the second positioning shell 3, and the openings of the first positioning shell 2 and the second positioning shell 3 are placed correspondingly. The positioning mechanisms 4 inside the first positioning shell 2 and the second positioning shell 3 cooperate and clamp to fix the two prefabricated guardrail bodies 1. The operation is simple, which is convenient for installing and splicing the prefabricated guardrail bodies 1, and effectively improves the installation efficiency of the guardrail. A limiting rod 5 is installed inside the positioning mechanism 4, and the limiting rod 5 and the positioning mechanism 4 are used in combination. The limiting rod 5 is used to limit the parts of the positioning mechanism 4 to improve the stability of the pipeline of the prefabricated guardrail body 1. The top of the limiting rod 5 is fixedly connected with a pull ring 6, and the pull ring 6 is used to facilitate the staff to take out the limiting rod 5 and lift the positioning mechanism 4. The use effect of the first positioning shell 2 and the second positioning shell 3 are both provided with a through hole 7 on the top, and the through hole 7 is used to provide space for taking out the limit rod 5, so as to adapt to the staff using tools to take out the limit rod 5, and can prevent irrelevant personnel from taking it out at will to affect the splicing effect of the prefabricated guardrail body 1. The bottoms of the columns on both sides of the prefabricated guardrail body 1 are fixedly connected with a fixing plate 8, and the fixing plate 8 is used to install parts. The surface of the fixing plate 8 is fixedly connected with a U-shaped block 9. The number of the U-shaped blocks 9 is four, and they are evenly distributed on the surface of the fixing plate 8. The U-shaped blocks 9 are used to install bottom parts. The inner wall of the U-shaped block 9 is hinged with a support leg 10. The number of the support leg 10 is consistent with that of the U-shaped block 9. The support leg 10 It is used to support the entire device and is used in conjunction with internal parts to increase the coverage and support area when pouring and fixing the bottom of the prefabricated guardrail body 1, thereby improving the fixing effect of the prefabricated guardrail body 1 and improving the stability of the prefabricated guardrail body 1. A guide rod 11 is fixedly connected to the middle of the bottom of the fixing plate 8. The guide rod 11 is used to guide the surface parts to improve its stability during support and facilitate the staff to unfold the support legs 10. A support mechanism 12 is arranged inside the support legs 10. The support mechanism 12 is used in conjunction with the support legs 10. The support mechanism 12 is used to limit the support legs 10, thereby improving the stability of the support legs 10 during support and facilitating storage.

[0023] The positioning mechanism 4 includes a mounting shell 41 fixed to one side of the inner wall of the first positioning shell 2. The mounting shell 41 is in a Y-shaped configuration. A block 42 is rotatably connected to one side of the inner wall of the mounting shell 41. The block 42 is in a U-shaped configuration. The block 42 is slidably connected to the inner wall of the mounting shell 41. A positioning groove 43 is provided on one side of the surface of the block 42. A limiting groove 44 is provided on one side of the surface of the mounting shell 41. The limiting rod 5 is movably connected to the inner walls of the positioning groove 43 and the limiting groove 44. The distance from the center point of the hinge between the block 42 and the mounting shell 41 to the center of the positioning groove 43 is the same as the distance to the center of the limiting groove 44. The positioning groove 43 has the same inner diameter as the limiting groove 44. By placing the first positioning shell 2 and the second positioning shell 3 on the adjacent side of the two prefabricated guardrail bodies 1 in corresponding positions, Then, the first positioning shell 2 and the second positioning shell 3 are fitted together, so that the two blocks 42 are squeezed against each other, and the block 42 is rotated by squeezing the inner wall of one side of one block 42 against the inner wall of the other side of the block 42, so that the two blocks 42 are limited and clamped to each other, and at the same time, the position of the positioning groove 43 corresponds to the position of the limiting groove 44. At this time, the limiting rod 5 falls into the limiting groove 44 and the positioning groove 43 by its own gravity to limit the block 42, so that the positioning mechanisms 4 on both sides are clamped to each other to connect and fix the two prefabricated guardrail bodies 1. The operation is convenient, and it is convenient to install and splice the prefabricated guardrail bodies 1, which effectively improves the installation efficiency of the prefabricated guardrail bodies 1. If the two prefabricated guardrail bodies 1 need to be separated, the staff uses a hook to be inserted into the through hole 7 and inserted into the pull ring 6 to pull out the limiting rod 5.

[0024] The supporting mechanism 12 includes a receiving groove 121 provided on the inner surface of the supporting leg 10. The number of the receiving grooves 121 is the same as the number of the supporting legs 10. A connecting rod 122 is hingedly connected below the inner wall of the receiving groove 121. The connecting rod 122 is movably connected to the inner wall of the receiving groove 121. The height inside the receiving groove 121 is greater than the length of the connecting rod 122. A sleeve 123 is hingedly connected to one end of the connecting rod 122. The sleeve 123 is slidably connected to the surface of the guide rod 11. A plurality of connecting rods 122 are hingedly connected to the bottom of the sleeve 123 at the same time. When it is necessary to cast and fix the bottom of the prefabricated guardrail body 1, the supporting leg 10 is opened to support the pillars of the prefabricated guardrail body 1. At the same time, the connection angle between the connecting rod 122 and the supporting leg 10 changes with the inclination angle of the supporting leg 10. Multiple connecting rods 122 are connected by sleeves 123 to support the supporting leg 10 synchronously, provide force points, and make the supporting leg 10 more stable when tilted. Move the sleeve 123 downward to fully unfold the connecting rod 122. When the connecting rod 122 is parallel to the ground, the supporting angle of the supporting leg 10 can be adjusted to the maximum. When the bottom of the prefabricated guardrail body 1 is cast and fixed, the coverage and support area are increased, the fixing effect and stability of the prefabricated guardrail body 1 are improved, and the bottom of the prefabricated guardrail body 1 is prevented from loosening and causing safety hazards after a long period of use.

[0025] It is worth noting that the prefabricated guardrail body 1 proposed in this technical solution is a prior art, and its working principle and beneficial effects when used are not described in detail here.

[0026] Working principle: First, the staff presses the sleeve 123 downward to drive the connecting rod 122 to expand downward to be parallel to the ground, and simultaneously drives the supporting leg 10 to expand, so that the supporting angle of the supporting leg 10 to the prefabricated guardrail body 1 is adjusted to the maximum. While the supporting leg 10 is supporting, the supporting leg 10 is connected and supported by the supporting mechanism 12, so as to expand the supporting area of ​​the prefabricated guardrail body 1 and improve the stability of the prefabricated guardrail body 1. Then, the prefabricated guardrail body 1 is placed in a suitable position, and the supporting parts at the bottom of the prefabricated guardrail body 1 are placed in the casting trough. In this way, the second prefabricated guardrail body 1 is placed, and the first positioning shell 2 and The openings of the second positioning shells 3 are placed correspondingly and fit together, and are fixed by squeezing and clamping the clamping blocks 42 inside the first positioning shells 2 and the second positioning shells 3. At the same time, the limiting rod 5 is embedded in the positioning grooves 43 and the limiting grooves 44 to limit the blocking blocks 42, so that one side of the two prefabricated guardrail bodies 1 is clamped and fixed, so that multiple prefabricated guardrail bodies 1 are spliced. The operation is simple and the work efficiency is improved. After the splicing is completed, pouring is carried out, and the pouring area is expanded by the supporting legs 10, which effectively improves the fixing effect of the prefabricated guardrail bodies 1. After the pouring is completed, the guardrail can be used for protection. If it is necessary to separate two adjacent prefabricated guardrail bodies 1, the limiting rod 5 can be taken out from the limiting groove 44 by a hook.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated guardrail, comprising a prefabricated guardrail body (1) and a first positioning shell (2) fixed at two upper and lower positions on one side of the prefabricated guardrail body, characterized in that: Also includes: A second positioning shell (3) is fixed at two locations on the other side of the prefabricated guardrail body (1), wherein a positioning mechanism (4) is provided inside the first positioning shell (2), a limiting rod (5) is installed inside the positioning mechanism (4), a pull ring (6) is fixedly connected to the top of the limiting rod (5), and through holes (7) are provided on the tops of the first positioning shell (2) and the second positioning shell (3); A fixing plate (8) is fixed to the bottom of the columns on both sides of the prefabricated guardrail body (1), a U-shaped block (9) is fixedly connected to the surface of the fixing plate (8), a support leg (10) is hinged to the inner wall of the U-shaped block (9), a guide rod (11) is fixedly connected to the middle of the bottom of the fixing plate (8), and a support mechanism (12) is arranged inside the support leg (10).

2. A prefabricated guardrail according to claim 1, characterized in that: The positioning mechanism (4) comprises a mounting shell (41) fixed to one side of the inner wall of the first positioning shell (2) and a clamping block (42) rotatable on one side of the inner wall thereof, and also comprises a positioning groove (43) provided on one side of the surface of the clamping block (42) and a limiting groove (44) provided on one side of the surface of the mounting shell (41).

3. The prefabricated guardrail according to claim 1, characterized in that: The support mechanism (12) comprises a storage groove (121) provided on the inner surface of the support leg (10) and a connecting rod (122) hingedly connected to the lower part of the inner portion thereof, and also comprises a sleeve (123) hingedly connected to the inner wall of one end of the connecting rod (122) and slidably connected to the guide rod (11).

4. The prefabricated guardrail according to claim 1, characterized in that: The opening on one side of the second positioning shell (3) corresponds to the opening on one side of the first positioning shell (2) in horizontal position and is symmetrically arranged with respect to each other.

5. The prefabricated guardrail according to claim 1, characterized in that: The number of the U-shaped blocks (9) is four and is consistent with the number of the supporting legs (10), and they are evenly distributed on the surface of the fixed plate (8).

6. The prefabricated guardrail according to claim 2, characterized in that: The distance from the center point of the hinge between the clamping block (42) and the mounting shell (41) to the center point of the positioning groove (43) is the same as the distance to the center point of the limiting groove (44), and the inner diameters of the positioning groove (43) and the limiting groove (44) are the same.

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