Prefabricated bridge guardrail convenient to assemble

Abstract

The utility model discloses a prefabricated bridge guardrail convenient to assemble. The prefabricated bridge guardrail comprises a plurality of sets of prefabricated railings, connecting assemblies and positioning assemblies, wherein the connecting assemblies are installed on the two sides of each set of prefabricated railings and used for connecting every two adjacent sets of prefabricated railings, and the positioning assemblies are used for limiting every two adjacent sets of prefabricated railings. The prefabricated bridge guardrail is extremely convenient and efficient to assemble, the connecting assemblies are provided with rotating structures comprising inner threaded pipes and bolts at the two ends of the prefabricated guardrails, a worker only needs to rotate a rotating disc to enable the bolts to stretch out and then rotate a positioning sleeve to store the rotating disc in the positioning sleeve, and then connection and combination of the two adjacent prefabricated guardrails can be rapidly completed; and the installation time is greatly shortened. In the aspect of connection stability, the positioning assembly is formed by splicing a rear side positioning seat, a front side positioning seat and a connection positioning seat, the positioning frame can be limited from the front portion, the rear portion and the upper portion, the positioning frame is stably clamped through side clamping grooves, threaded holes correspond to connection bolt holes in the positioning frame, and the connection strength is enhanced through bolt fixing.

Description

TECHNICAL FIELD

[0001] The utility model relates to prefabricated bridge guardrail technical field, concretely is a prefabricated bridge guardrail convenient to assemble. BACKGROUND

[0002] In modern bridge construction, prefabricated bridge guardrails are widely used due to their convenient construction and controllable quality. However, the traditional prefabricated bridge guardrails still have many shortcomings in actual use. On the one hand, the assembly process is complex, and the connection between adjacent guardrails often requires a lot of manpower and time, resulting in low construction efficiency and difficulty in meeting the needs of rapid construction. On the other hand, the stability of the connection structure is poor, and the existing connection method is prone to looseness, falling off and other problems during long-term use, which greatly reduces the protective performance of the guardrail and poses a safety hazard. In addition, the existing positioning and protection measures are insufficient, and the connection parts of the guardrail cannot be effectively protected, making it difficult to resist external impacts such as vehicle collisions, reducing the overall use strength and service life of the guardrail.

[0003] Therefore, it is of great significance to develop a prefabricated bridge guardrail that is easy to assemble, has stable connection and high use strength, to improve the quality and safety of bridge construction. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a prefabricated bridge guardrail convenient to assemble, which realizes double locking through a connecting assembly and a positioning assembly, improves the use strength while improving the connection convenience, and solves the technical problems mentioned in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a prefabricated bridge guardrail convenient to assemble, comprising a plurality of groups of prefabricated guardrails, a connecting assembly installed on both sides of each group of prefabricated guardrails for connecting adjacent two groups of prefabricated guardrails, and a positioning assembly for limiting adjacent two groups of prefabricated guardrails.

[0006] A set of positioning frames is installed on the left and right sides of the prefabricated guardrail respectively;

[0007] The connecting assembly comprises rotating structures installed at both ends of the prefabricated guardrail, one set of the rotating structures is internally screwed with a bolt, and the other set of the rotating structures is internally installed with an internally threaded pipe;

[0008] The positioning assembly comprises a rear positioning seat, a front positioning seat and a connecting positioning seat, and the rear positioning seat, the front positioning seat and the connecting positioning seat connect the positioning frames on the corresponding side of the two adjacent groups of prefabricated guardrails.

[0009] Preferably, the positioning frame surface is provided with a plurality of groups of connecting bolt holes, the precast rail rod bodies at both ends are inserted into the positioning frame and extend out, and each group of rod bodies is provided with a receiving groove at the outer end.

[0010] Preferably, the rotating structure is inserted into the receiving groove and mounted, the rotating structure comprises an inner rod inserted into the receiving groove, a bearing is rotatably mounted at the front end of the inner rod, and an inner threaded pipe is rotatably mounted inside the inner rod and attached to the inner rod.

[0011] Preferably, the rotating structure at the left side of the precast rail is fixedly mounted with a positioning sleeve at the outer end of the inner threaded pipe, the rotating structure at the right side of the precast rail is fixedly mounted with a rotating disc at the outer end of the inner threaded pipe, the bolt extends out from the inside of the rotating disc, and the bolt is fixedly mounted with a baffle at one end inside the receiving groove.

[0012] Preferably, the rear positioning seat, the front positioning seat and the connecting positioning seat are all internally mounted with a reinforcing inner core, and the rear positioning seat, the front positioning seat and the connecting positioning seat are respectively provided with a positioning groove corresponding to each group of connecting assemblies.

[0013] Preferably, the rear positioning seat, the front positioning seat and the connecting positioning seat are respectively provided with a side clamping groove on the left and right sides, the positioning frame is clamped into the side clamping groove, and the rear positioning seat, the front positioning seat and the connecting positioning seat are provided with a threaded hole corresponding to the position of the connecting bolt hole.

[0014] Compared with the prior art, the precast bridge guardrail has the advantages that:

[0015] The precast bridge guardrail is extremely convenient and efficient to assemble, the connecting assembly is provided with a rotating structure comprising an inner threaded pipe and a bolt at both ends of the precast rail, the staff only needs to rotate the rotating disc to make the bolt extend out, and then rotate the positioning sleeve to accommodate the rotating disc therein, so that the connection and combination of adjacent two groups of precast rails can be quickly completed, and the installation time is greatly shortened. In terms of connection stability, the positioning assembly is spliced by a rear positioning seat, a front positioning seat and a connecting positioning seat, the positioning frame can be limited from front to back and from top, the positioning frame is stably clamped by the side clamping groove, the threaded hole is correspondingly arranged on the connecting bolt hole of the positioning frame, and the connection strength is enhanced by the bolt fixation; the inner rod in the rotating structure ensures the position fixation, the bearing ensures the flexible rotation of the inner threaded pipe, and the connection assembly is further prevented from loosening. In terms of use strength, the reinforcing inner core internally mounted in the positioning assembly fills the gap and becomes a whole, and the positioning groove corresponding to the connecting assembly can effectively protect the connection position after being closed, the connection assembly is prevented from loosening due to external force, and the use strength and durability of the whole guardrail are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure of the utility model is shown in the figure;

[0017] Figure 2 The utility model discloses positioning assembly installation structure split schematic view;

[0018] Figure 3 The utility model discloses connecting assembly installation structure split schematic view;

[0019] Figure 4 The utility model discloses connecting assembly connection state schematic view;

[0020] Figure 5 The utility model discloses connecting assembly structure split schematic view;

[0021] Figure 6 The utility model discloses positioning assembly structure split schematic view.

[0022] In the drawing: 1, prefabricated railing, 2, positioning frame, 3, connecting bolt hole, 4, storage groove, 5, inner rod, 6, bearing, 7, rotating disc, 8, bolt, 9, baffle, 10, positioning sleeve, 11, inner threaded tube, 12, rear positioning seat, 13, front positioning seat, 14, connecting positioning seat, 15, reinforced inner core, 16, positioning groove, 17, side clamping groove, 18, threaded hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] The utility model provides: a kind of prefabricated bridge guardrail of convenient assembly, as shown in Figures 1-6 It is shown that it includes several groups of prefabricated railing 1, connecting assembly for being installed to both sides of each group of prefabricated railing 1 for the connection of adjacent two groups of prefabricated railing 1, and the positioning assembly for limiting adjacent two groups of prefabricated railing 1, two groups of adjacent prefabricated railing 1 can be connected stably by connecting assembly, and the connecting position of adjacent two groups of prefabricated railing 1 can be limited and protected by positioning assembly, so that the connecting position is more stable, and the use strength is improved simultaneously;

[0025] One group of positioning frame 2 is installed on the left and right sides of prefabricated railing 1 respectively, and the positioning frame 2 installed on the two sides of prefabricated railing 1 is used to be connected with positioning assembly, so that the connectivity of adjacent two groups of prefabricated railing 1 can be guaranteed;

[0026] The connecting assembly comprises rotating structures installed at both ends of the prefabricated rail 1, one set of rotating structures is internally screwed with bolts 8, and the other set of rotating structures is internally screwed with internally threaded pipes 11, the rotating structures at both ends of the prefabricated rail 1 can ensure that one set of prefabricated rails 1 on one side is connected with another set of prefabricated rails 1 through the bolts 8, and the adjacent two sets of prefabricated rails 1 are quickly connected and combined;

[0027] The positioning assembly comprises rear positioning seats 12, front positioning seats 13 and connecting positioning seats 14, the rear positioning seats 12, the front positioning seats 13 and the connecting positioning seats 14 connect the positioning frames 2 on the corresponding sides of the adjacent two sets of prefabricated rails 1, the rear positioning seats 12, the front positioning seats 13 and the connecting positioning seats 14 are combined in a splicing manner, the connecting positions are protected while the positioning frames 2 are limited, and the adjacent two sets of positioning frames 2 are fixed through bolting, thereby further improving the direct connectivity of the adjacent two sets of prefabricated rails 1.

[0028] As preferred, a plurality of connecting bolt holes 3 are formed on the surface of the positioning frame 2, the rod bodies at both ends of the prefabricated rail 1 pass through the positioning frame 2 and extend out, and a receiving groove 4 is formed on the outer end of each rod body, the connecting bolt holes 3 formed on the surface of the positioning frame 2 can be connected with the positioning assembly through bolts after the positioning frame 2 is clamped and positioned by the positioning assembly, thereby fixing the connecting positions and the positions of the two sets of prefabricated rails 1, and avoiding loosening of the connecting assembly during use.

[0029] Further, the rotating structure is inserted into the receiving groove 4 and installed, the rotating structure comprises an inner rod 5 inserted into the receiving groove 4, a bearing 6 is rotatably installed at the front end of the inner rod 5, an internally threaded pipe 11 is installed in the bearing 6, and the internally threaded pipe 11 is rotatably installed inside the inner rod 5, the inner rod 5 is installed to fix the position of the rotating structure, and the bearing 6 is installed to ensure the rotatability of the internally threaded pipe 11, thereby controlling the bolt 8.

[0030] Further, the positioning sleeve 10 is fixedly installed at the outer end of the internally threaded pipe 11 on the left rotating structure of the prefabricated rail 1, the rotating disc 7 is fixedly installed at the outer end of the internally threaded pipe 11 on the right rotating structure of the prefabricated rail 1, the bolt 8 is rotatably extended from the inside of the rotating disc 7, and the bolt 8 is fixedly installed with a baffle 9 at one end inside the receiving groove 4, the staff can make the bolt 8 extend out of the receiving groove 4 by rotating the rotating disc 7, and the bolt 8 is further pulled to the position by rotating the positioning sleeve 10 after the bolt 8 extends into the positioning sleeve 10, so that the rotating disc 7 is completely received in the positioning sleeve 10, and the connection between the adjacent two sets of prefabricated rails 1 is completed.

[0031] It is worth mentioning that the rear positioning seat 12, the front positioning seat 13 and the connecting positioning seat 14 are internally provided with reinforcing inner cores 15, and the rear positioning seat 12, the front positioning seat 13 and the connecting positioning seat 14 are respectively provided with positioning grooves 16 corresponding to each group of connecting assemblies, the rear positioning seat 12, the front positioning seat 13 and the connecting positioning seat 14 are respectively positioned from the front, the rear and the upper part of the positioning frame 2, the reinforcing inner core 15 is arranged to fill the internal gap of the positioning assembly, so that the positioning assembly forms an integral whole, in addition, the positioning groove 16 is arranged to protect the connecting position of the adjacent two groups of prefabricated railings 1, and after the positioning assembly is closed, the connecting assembly can be prevented from being loosened by external force.

[0032] Specifically, the rear positioning seat 12, the front positioning seat 13 and the connecting positioning seat 14 are respectively provided with side clamping grooves 17 on the left and right sides, the positioning frame 2 is clamped into the side clamping groove 17, and the rear positioning seat 12, the front positioning seat 13 and the connecting positioning seat 14 are provided with threaded holes 18 corresponding to the connecting bolt holes 3, the rear positioning seat 12, the front positioning seat 13 and the connecting positioning seat 14 stably clamp the adjacent two groups of positioning frames 2 in the side clamping groove 17 after being closed, so that the threaded hole 18 corresponds to the connecting bolt hole 3, and the combination of the positioning frame 2 and the positioning assembly is completed through the bolt.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A pre-fabricated bridge barrier that is easy to assemble, characterized in that: The utility model provides a kind of prefabricated railing, comprising several groups of prefabricated railing (1), connecting assembly for connecting adjacent two groups of prefabricated railing (1) is installed on both sides of each group of the prefabricated railing (1), and positioning assembly for limiting adjacent two groups of prefabricated railing (1) is installed on both sides of each group of the prefabricated railing (1). The prefabricated railing (1) is respectively installed with a group of positioning frame (2) on left and right sides. The connecting assembly includes rotating structure installed at both ends of the prefabricated railing (1), one group of the rotating structure is internally screwed with bolt (8), and the other group of the rotating structure is internally installed with internally threaded tube (11). The positioning assembly includes rear positioning seat (12), front positioning seat (13) and connecting positioning seat (14), and the rear positioning seat (12), front positioning seat (13) and connecting positioning seat (14) connect the positioning frame (2) on the corresponding side of the two adjacent groups of prefabricated railing (1).

2. A precast bridge barrier for ease of assembly according to claim 1, wherein: The positioning frame (2) is provided with a plurality of connecting bolt holes (3) on the surface, the rod body at both ends of the prefabricated railing (1) penetrates the positioning frame (2) and extends out, and each group of the rod body is provided with a receiving groove (4) at the outer end.

3. A precast bridge barrier for ease of assembly according to claim 2, wherein: The rotating structure is inserted into the receiving groove (4) and installed, the rotating structure includes an inner rod (5) inserted into the receiving groove (4), a bearing (6) is rotatably installed at the front end of the inner rod (5), an internally threaded tube (11) is installed in the bearing (6), and the internally threaded tube (11) is rotatably installed inside the inner rod (5).

4. A precast bridge barrier for ease of assembly according to claim 3 wherein: The left rotating structure of the prefabricated railing (1) is fixedly installed with a positioning sleeve (10) at the outer end of the internally threaded tube (11), the right rotating structure of the prefabricated railing (1) is fixedly installed with a rotating disc (7) at the outer end of the internally threaded tube (11), the bolt (8) is rotatably extended from the inside of the rotating disc (7), and the bolt (8) is fixedly installed with a baffle (9) at one end inside the receiving groove (4).

5. A precast bridge barrier for ease of assembly according to claim 4 wherein: The rear positioning seat (12), front positioning seat (13) and connecting positioning seat (14) are all installed with a reinforcing inner core (15), and the rear positioning seat (12), front positioning seat (13) and connecting positioning seat (14) are respectively provided with a positioning groove (16) corresponding to each group of connecting assembly.

6. A precast bridge barrier for ease of assembly according to claim 5 wherein: The rear positioning seat (12), front positioning seat (13) and connecting positioning seat (14) are respectively provided with a side clamping groove (17) on left and right sides, the positioning frame (2) is clamped into the side clamping groove (17), and the rear positioning seat (12), front positioning seat (13) and connecting positioning seat (14) are provided with a threaded hole (18) corresponding to the position of the connecting bolt hole (3).

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