Novel bailey truss

Abstract

The utility model discloses a novel bailey truss which comprises a main frame body, a reinforcing rod is fixedly connected to the middle position in the main frame body, second inserting blocks are fixedly connected to the two ends of one side of the main frame body, and reinforcing strips are fixedly connected to the two ends of the side, away from the second inserting blocks, of the main frame body. Second inserting grooves are formed in the two sides of one side of the reinforcing strip. The strength layer, the composite layer and the protective layer are arranged in the bailey truss, the strength layer has excellent tensile strength and compression resistance and is suitable for various complex terrains or bearing external impact, the composite layer is arranged outside the strength layer, the weight of the bailey truss is further reduced, meanwhile, larger bearing capacity is provided, and the service life of the bailey truss is prolonged. Meanwhile, the protective layer is arranged outside the composite layer and has very high corrosion resistance, and the external fluorocarbon coating has very high high-temperature resistance, ultraviolet resistance and chemical corrosion resistance, so that the overall strength of the bailey truss is improved, and the use stability of the bailey truss is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bailey truss, concretely to a novel bailey truss. BACKGROUND

[0002] Bailey truss is a modular, convenient bridge structure that is widely used in temporary or emergency situations. It is composed of multiple standardized steel modules, which can be quickly assembled, disassembled and transported, suitable for various terrains and environments. The design of bailey truss ensures the strength and stability of the structure, and has high adaptability, commonly used in military, post-disaster reconstruction and transportation fields. Due to its fast construction speed and relatively low cost, bailey truss has become an ideal choice for emergency bridge construction.

[0003] In the Chinese patent No. CN220486253U, a novel bailey truss is disclosed, which provides downward pressure on the upper beam by setting a pressing angle steel on the upper beam, further compresses the upper beam, and connects and supports the upper beam and the lower beam through the inclined support, and the inclined support forms a stable triangular structure, improving the overall stability. The connection stability between the upper beam and the lower beam is improved by setting a reinforcing support device between the upper beam and the lower beam, so that the overall structure is stable during use and can withstand heavy loads. However, the bailey truss has low stability, and long-term outdoor use can cause corrosion and other problems, resulting in a decrease in the overall durability of the bailey truss and affecting the safety and stability of the subsequent use of the bailey truss. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a novel bailey truss to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a novel bailey truss, comprising a main frame body, a reinforcing rod fixedly connected to the middle position inside the main frame body, second insertion blocks fixedly connected to both ends of one side of the main frame body, reinforcing strips fixedly connected to both ends of the side of the main frame body away from the second insertion blocks, second insertion grooves provided on both sides of one side of the reinforcing strips, a limiting mechanism provided inside the reinforcing strips, and a material layer provided inside the main frame body.

[0006] Preferably, first insertion grooves are provided on both sides of one side of the main frame body, and first insertion blocks are fixedly connected to both ends of the side of the main frame body away from the first insertion grooves.

[0007] Preferably, the limiting mechanism comprises a rotating handle rotatably connected to one side of the reinforcing strip, a winding shaft fixedly connected to one side of the rotating handle, pull ropes fixedly connected to both sides of the winding shaft, movable blocks fixedly connected to one side of the pull ropes, springs fixedly connected to one side of the movable blocks, and positioning rods fixedly connected to the side of the movable blocks away from the springs.

[0008] Preferably, the material layer comprises a strength layer arranged at an intermediate position in the interior of the main frame body, an outer portion of the strength layer is provided with a composite layer, and an outer portion of the composite layer is provided with a protective layer.

[0009] Preferably, the strength layer is made of Q345 steel material, the composite layer is made of carbon fiber composite material, and the protective layer is made of titanium alloy coated with fluorocarbon paint.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] 1. The novel bailey frame is provided with a strength layer, a composite layer and a protective layer, the strength layer has excellent tensile strength and compression resistance, is suitable for various complex terrains or external impact, and the composite layer is arranged outside the strength layer to further reduce the weight of the bailey frame, provide greater load capacity, and the protective layer arranged outside the composite layer has strong corrosion resistance, the fluorocarbon paint on the outside has strong high-temperature resistance, ultraviolet resistance and chemical corrosion resistance, improves the overall strength of the bailey frame, increases the stability of the bailey frame, and makes the bailey frame adapt to various environmental conditions.

[0012] 2. The novel bailey frame is provided with first insertion grooves and first insertion blocks on both sides of the main frame body, can facilitate quick assembly of similar bailey frames, and is provided with a reinforcing strip on one side of the main frame body, the first insertion blocks on one side of the similar bailey frame are inserted into the second insertion grooves on the reinforcing strip, and the positioning rods in the reinforcing strip are inserted into the slot holes in the first insertion blocks on the similar bailey frame, so that the installation of two groups of bailey frames in the horizontal and vertical directions can be quickly completed, thereby effectively improving the flexibility of bailey frame installation and the applicability of the bailey frame in different installation conditions. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic view of the overall structure of the utility model;

[0014] Figure 2 It is a schematic view of the rear view structure of the utility model;

[0015] Figure 3 It is a schematic view of the front view structure of the limiting mechanism of the utility model;

[0016] Figure 4 It is a schematic view of the overall structure of the utility model Figure 3 It is a schematic view of the enlarged structure at A in the utility model.

[0017] In the figure: 1, main frame body; 101, reinforcing rod; 102, first insertion slot; 103, first insertion block; 2, second insertion block; 3, reinforcing strip; 301, second insertion slot; 4, limiting mechanism; 401, handle; 402, winding shaft; 403, pull rope; 404, movable block; 405, spring; 406, positioning rod; 5, material layer; 501, strength layer; 502, composite layer; 503, protective layer. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described 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, rather than 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 scope of protection of the utility model.

[0019] Please refer to Figures 1-4 The utility model provides two technical schemes:

[0020] Embodiment one, a new type of Bailey frame, including main frame body 1, the middle position inside main frame body 1 is fixedly connected with reinforcing rod 101, the both ends of one side of main frame body 1 are fixedly connected with second insertion block 2, the both ends of the side away from second insertion block 2 of main frame body 1 are fixedly connected with reinforcing strip 3, the both sides of one side of reinforcing strip 3 are provided with second insertion slot 301, the inside of reinforcing strip 3 is provided with limiting mechanism 4, the inside of main frame body 1 is provided with material layer 5, second insertion slot 301 is arranged on one side of reinforcing strip 3, which can facilitate the insertion of first insertion block 103 on the similar main frame body 1, at this time, two groups of Bailey frames can be installed between horizontal and vertical, and second insertion block 2 is arranged on one side of main frame body 1, which can facilitate the insertion and installation of first insertion slot 102 on the similar main frame body 1.

[0021] Material layer 5 includes strength layer 501 arranged at the middle position inside main frame body 1, composite layer 502 is arranged outside strength layer 501, and protective layer 503 is arranged outside composite layer 502.

[0022] Strength layer 501 is made of Q345 steel material, which has excellent tensile strength and compression resistance, can support the main load-bearing components of the Bailey frame, ensure the overall stability, and is suitable for various complex terrains or environments subjected to external impact.

[0023] Composite layer 502 is made of carbon fiber composite material, which has very high specific strength and specific stiffness, so that the use of carbon fiber composite material can further reduce the weight of the Bailey frame, provide greater load capacity, and has high fatigue resistance, can effectively disperse the load and withstand the deformation caused by long-term use.

[0024] The protective layer 503 is coated with fluorocarbon paint outside the titanium alloy. The titanium alloy has strong corrosion resistance, is suitable for harsh environments, has high tensile strength and compression resistance, and the fluorocarbon paint has strong high-temperature resistance, ultraviolet resistance and chemical corrosion resistance, is suitable for long-term outdoor exposure, and prolongs the service life of the Bailey frame.

[0025] The main difference between the second embodiment and the first embodiment is that:

[0026] A new type of Bailey frame, the two sides of the main frame body 1 are provided with first insertion grooves 102, and the two ends of the main frame body 1 away from the first insertion grooves 102 are fixedly connected with first insertion blocks 103. By inserting the first insertion block 103 on one side of the main frame body 1 into the first insertion groove 102 on one side of the same main frame body 1 and fixing the first insertion block 103 and the first insertion groove 102 through the positioning bolt, the transverse installation work of the same Bailey frame can be performed.

[0027] The limiting mechanism 4 includes a rotating handle 401 rotatably connected to the outside of the reinforcing strip 3. The rotating handle 401 is fixedly connected with a winding shaft 402 on one side. The winding shaft 402 is fixedly connected with a pull rope 403 on both sides. The pull rope 403 is fixedly connected with a movable block 404 on one side. The movable block 404 is fixedly connected with a spring 405 on one side. The movable block 404 is fixedly connected with a positioning rod 406 on the side away from the spring 405. Rotating the rotating handle 401 on the reinforcing strip 3 can drive the winding shaft 402 to rotate. At this time, the winding shaft 402 can drive the pull rope 403 on both sides to wind. The pull rope 403 drives the movable block 404 to move while pressing the spring 405 on one side. At the same time, the movable block 404 can pull the positioning rod 406 to move. When the rotating handle 401 is released, the spring 405 can be quickly reset by the positioning rod 406 through the movable block 404 due to the reaction force of the spring 405 being pressed. When the positioning rod 406 is inserted into the slot hole on the first insertion block 103 of the same Bailey frame, the installation work of the same Bailey frame on one side of the reinforcing strip 3 can be completed. The contents not described in detail in the specification all belong to the existing technology known to those skilled in the art.

[0028] In use, the first insertion block 103 on one side of the main frame body 1 is inserted into the first insertion groove 102 on the same kind of main frame body 1, at this time, the positioning bolt passes through the slot hole on the first insertion block 103 and the first insertion groove 102, then the transverse assembly work between the same kind of main frame bodies 1 can be carried out, and the rotating handle 401 on the reinforcing strip 3 on one side of the main frame body 1 is rotated, then the rotating handle 401 can drive the winding shaft 402 to rotate, at this time, the pull rope 403 on the outer two sides of the winding shaft 402 can pull the movable block 404 to move, at this time, the movable block 404 extrudes the spring 405, at the same time, can drive the positioning rod 406 to be received into the inside of the reinforcing strip 3, and the first insertion block 103 on one side of the same kind of main frame body 1 is inserted into the second insertion groove 301 on the reinforcing strip 3, at this time, the rotating handle 401 is loosened, then due to the reaction force of the spring 405 being extruded, the positioning rod 406 can be inserted into the slot hole on the first insertion block 103 on one side of the same kind of main frame body 1 through the movable block 404, the transverse and longitudinal installation work of the same kind of main frame bodies 1 is completed.

[0029] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, the above embodiments and descriptions in the specification are only preferred examples of the present application, and are not intended to limit the present application, various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A new type of Bailey truss comprising a main truss body (1), characterized in that: The middle position inside the main frame body (1) is fixedly connected with a reinforcing rod (101), both ends of one side of the main frame body (1) are fixedly connected with a second insertion block (2), both ends of the side, away from the second insertion block (2), of the main frame body (1) are fixedly connected with a reinforcing strip (3), both sides of one side of the reinforcing strip (3) are provided with a second insertion slot (301), the inside of the reinforcing strip (3) is provided with a limiting mechanism (4), and the inside of the main frame body (1) is provided with a material layer (5).

2. A new type of Bailey frame according to claim 1, characterized in that: Both sides of one side of the main frame body (1) are provided with a first insertion slot (102), and both ends of the side, away from the first insertion slot (102), of the main frame body (1) are fixedly connected with a first insertion block (103).

3. A new type of Bailey frame according to claim 1, characterized in that: The limiting mechanism (4) comprises a rotating handle (401) rotatably connected to one side of the reinforcing strip (3) outside, one side of the rotating handle (401) is fixedly connected with a winding shaft (402), both sides of the winding shaft (402) are fixedly connected with a pull rope (403), one side of the pull rope (403) is fixedly connected with a movable block (404), one side of the movable block (404) is fixedly connected with a spring (405), and one side of the movable block (404), away from the spring (405), is fixedly connected with a positioning rod (406).

4. A new type of Bailey frame according to claim 1, characterized in that: The material layer (5) comprises a strength layer (501) arranged at the middle position inside the main frame body (1), an outer composite layer (502) arranged outside the strength layer (501), and a protective layer (503) arranged outside the composite layer (502).

5. A new type of Bailey frame according to claim 4, characterized in that: The strength layer (501) is made of Q345 steel material, the composite layer (502) is made of carbon fiber composite material, and the protective layer (503) is made of titanium alloy coated with fluorocarbon paint outside.

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