Bridge guardrail convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of bridge guardrails, in particular to a bridge guardrail convenient to disassemble and assemble. Comprising a plurality of guardrail units which are sequentially connected end to end, and every two adjacent guardrail units are connected through a connecting assembly. Each guardrail unit comprises an installation rod, a first handrail and a second handrail are arranged on the two sides of the surface of each installation rod respectively and extend in the length direction of the bridge, and the first end of each first handrail and the second end of each second handrail are fixedly connected with the corresponding installation rod. The connecting assembly comprises a sliding sleeve and a pin shaft, the second end of the first handrail is sleeved with the sliding sleeve, the sliding sleeve can slide in the length direction of the first handrail, and the first end of the second handrail can be inserted into the sliding sleeve to abut against the first handrail; limiting holes are formed in the sliding sleeves, pin holes are formed in the first ends of the second railings, the limiting holes correspond to the pin holes, and the pin shafts are used for being inserted into the limiting holes and the pin holes of the adjacent guardrail units. And when the guardrail is disassembled, the pin shafts are pulled out, so that the guardrail is convenient and rapid to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge guardrails, and in particular to a bridge guardrail that is easy to disassemble and assemble. Background Technology

[0002] Bridges generally refer to structures built across rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. In order to adapt to the modern high-speed development of the transportation industry, bridges are also extended to buildings that cross mountain streams, poor geology, or meet other transportation needs to make passage more convenient. Guardrails are usually set up on both sides of the bridge to protect pedestrians and vehicles.

[0003] Chinese patent CN219793629U discloses a bridge guardrail, including a main pole, main frames are fixedly connected to both sides of the main pole surface, several rotating components are rotatably connected inside the main frame, and a main board is fixedly connected to one side of the main frame. The bridge guardrail, through the arrangement of the main frame and the rotating component, when hit by a vehicle, the force acting on the surface of the device is firstly dissipated and transferred to the direct force by the rotation, which alleviates the damage to the device as a whole caused by a part of the force, and guides and disperses the impact force. Through the arrangement of the receiving component, the protective plate and the protective component, the impact force is resisted and reduced for a second time, protecting the driver from the damage caused by the inertial potential energy generated by the collision inside the vehicle, improving the driving safety of vehicles on the road, and preventing the vehicle from rushing out of the guardrail and causing more serious casualties through the arrangement of the main board.

[0004] However, the above-mentioned guardrails are not easy to install and disassemble quickly. At the bridge construction site, temporary guardrails need to be set up to protect the construction workers. If a lot of time is spent on installing the guardrails, it will waste manpower and material resources, delay the construction progress, and have low efficiency. Contents of utility model

[0005] The purpose of the utility model is to provide a bridge guardrail that is easy to disassemble and assemble.

[0006] To achieve the above purpose, the utility model provides a bridge guardrail that is easy to disassemble and assemble, including a plurality of guardrail units connected end to end in sequence, and two adjacent guardrail units are connected by a connecting assembly;

[0007] The guardrail unit comprises a mounting rod, and a first railing and a second railing are respectively arranged on both sides of the mounting rod, the first railing and the second railing both extend along the length direction of the bridge, the first end of the first railing is fixedly connected to the mounting rod, and the second end of the second railing is fixedly connected to the mounting rod;

[0008] The connecting component includes a sliding sleeve and a pin shaft. The sliding sleeve is sleeved on the second end of the first railing, and the sliding sleeve can slide along the length direction of the first railing. The first end of the second railing can be inserted into the sliding sleeve and abuts against the first railing. A limiting hole is formed in the sliding sleeve, and a pin hole is formed in the first end of the second railing. The limiting hole and the pin hole are correspondingly arranged, and the pin shaft is used for being inserted into the limiting hole and the pin hole of the adjacent guardrail unit.

[0009] Optionally, a sliding rod is arranged inside the mounting rod, and the sliding rod can slide up and down in the mounting rod.

[0010] A rack is arranged on the outer surface of the sliding rod, and the rack is fixedly connected with the sliding rod. A sliding groove is formed in the mounting rod at a position corresponding to the rack.

[0011] A first gear is arranged at the first end of the first railing, and the first gear is meshed and connected with the rack through the sliding groove. A second gear is arranged at the second end of the second railing, and the second gear is meshed and connected with the rack through the sliding groove.

[0012] Optionally, a first baffle is arranged at the bottom end of the sliding rod, and the first baffle is fixedly connected with the sliding rod. A plurality of connecting rods are hinged on the periphery of the first baffle, and the plurality of connecting rods are evenly distributed along the periphery of the first baffle.

[0013] A plurality of support rods are arranged at the bottom of the mounting rod, and the plurality of support rods are all hinged with the mounting rod. The plurality of support rods and the plurality of connecting rods are arranged in one-to-one correspondence, and one end of the connecting rod far away from the first baffle is hinged with the support rod.

[0014] Optionally, the number of the connecting rods is three.

[0015] Optionally, a second baffle is arranged at the top of the sliding rod, and the second baffle is fixedly connected with the sliding rod. The diameter of the second baffle is greater than or equal to the diameter of the mounting rod.

[0016] Optionally, a handle is arranged at the top of the second baffle.

[0017] Optionally, a limiting plate is arranged at one end of the pin shaft far away from the sliding sleeve.

[0018] Optionally, a limiting spring is sleeved on the pin shaft, and the limiting spring is compressed between the limiting plate and the sliding sleeve.

[0019] Optionally, a limiting block is arranged at the second end of the first railing, and the limiting block is fixedly connected with the first railing. A limiting groove is formed in the sliding sleeve, and the limiting groove can abut against the limiting block through the sliding of the sliding sleeve.

[0020] Optionally, in the vertical direction, the size of the first railing is the same as that of the second railing.

[0021] The technical solution provided by the present utility model has the following advantages compared with the prior art:

[0022] The bridge guardrail provided by the present utility model is convenient for disassembly and assembly. By respectively arranging a first railing and a second railing on both sides of the installation rod, both the first railing and the second railing extend along the length direction of the bridge. The first end of the first railing is fixedly connected to the installation rod, and the second end of the second railing is fixedly connected to the installation rod. Connecting multiple guardrail units end to end enables multiple first railings and second railings to form a guardrail structure to protect the safety of pedestrians. At the same time, a sliding sleeve is arranged to sleeved on the second end of the first railing, and the sliding sleeve can slide along the length direction of the first railing. The first end of the second railing can be inserted into the sliding sleeve and abutted against the first railing. A limiting hole is formed on the sliding sleeve, and a pin hole is formed at the first end of the second railing. The limiting hole and the pin hole are correspondingly arranged, and a pin shaft is used to be inserted into the limiting hole and the pin hole of the adjacent guardrail unit. Therefore, the first railings and second railings of two adjacent guardrail units can be connected, and when disassembly is required, directly pull out the pin shaft, which is convenient and fast. Description of the Drawings

[0023] The drawings here are incorporated into the description and form a part of this description, showing the embodiments that conform to the present utility model and are used together with the description to explain the principles of the present utility model.

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0025] Figure 1 Structural schematic diagram of the guardrail unit when it is expanded according to the embodiment of the present utility model;

[0026] Figure 2 Schematic diagram of the connection of two adjacent guardrail units according to the embodiment of the present utility model;

[0027] Figure 3 Structural schematic diagram of the guardrail unit when it is folded according to the embodiment of the present utility model;

[0028] Figure 4 Partial structural schematic diagram of the guardrail unit when it is expanded according to the embodiment of the present utility model;

[0029] Figure 5 Structural schematic diagram of the first guardrail according to the embodiment of the present utility model;

[0030] Figure 6 This is a partial structural schematic diagram of the connection between the first guardrail and the second guardrail according to an embodiment of the present invention.

[0031] Wherein, 1. mounting rod; 2. first railing; 21. first gear; 22. limiting block; 3. second railing; 31. second gear; 32. pin hole; 4. connecting component; 41. sliding sleeve; 411. limiting groove; 42. pin shaft; 421. limiting plate; 422. limiting spring; 5. sliding rod; 51. rack; 52. first baffle; 53. second baffle; 54. handle; 6. connecting rod; 7. support rod. Specific embodiments

[0032] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the solution of the present invention will be further described below. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0033] Many specific details are set forth in the following description in order to provide a thorough understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present invention, rather than all the embodiments.

[0034] The following is a detailed description of the bridge guardrail that is easy to disassemble and assemble through specific embodiments:

[0035] As Figure 1 and Figure 2 shown, a bridge guardrail that is easy to disassemble and assemble provided by the present invention includes a plurality of guardrail units connected in sequence end to end, and adjacent two guardrail units are connected by a connecting component 4.

[0036] The guardrail unit includes a mounting rod 1, and a first railing 2 and a second railing 3 are respectively arranged on both sides of the mounting rod 1. The first railing 2 and the second railing 3 both extend along the length direction of the bridge. The first end of the first railing 2 is fixedly connected to the mounting rod 1, and the second end of the second railing 3 is fixedly connected to the mounting rod 1.

[0037] The connecting component 4 includes a sliding sleeve 41 and a pin shaft 42. The sliding sleeve 41 is sleeved on the second end of the first railing 2, and the sliding sleeve 41 can slide along the length direction of the first railing 2. The first end of the second railing 3 can be inserted into the sliding sleeve 41 and abuts against the first railing 2. A limiting hole is formed in the sliding sleeve 41, and a pin hole 32 is formed in the first end of the second railing 3. The limiting hole and the pin hole 32 are correspondingly arranged, and the pin shaft 42 is used to be inserted into the limiting hole and the pin hole 32 of the adjacent guardrail unit.

[0038] The above-mentioned end-to-end connection refers to the direction along the length of the bridge. The two sides of the mounting rod 1 refer to the two sides along the length of the bridge. Specifically, mounting seats can be provided on the surface of the mounting rod 1, and the first railing 2 and the second railing 3 can be connected to the mounting rod 1 through structures such as bearings. It can also be connected to the mounting rod 1 by welding or other means. The mounting rod 1 can be rectangular or circular, which is specifically set according to actual needs. The first end of the first railing 2 is the end of the first railing 2 close to the mounting rod 1, and the second end of the second railing 3 is the end of the second railing 3 close to the mounting rod 1. The first railing 2 and the second railing 3 can be collinear in the horizontal direction to facilitate the connection of adjacent guardrail units. The shapes, thicknesses, etc. of the first railing 2 and the second railing 3 can be the same to facilitate processing.

[0039] Furthermore, the connecting component 4 is provided and includes a sliding sleeve 41 and a pin shaft 42. The above-mentioned sliding sleeve 41 can be a hollow rectangular frame body. As Figure 1 shown in the direction, through holes can be opened on the left and right sides of the rectangular frame body, so that the sliding sleeve 41 can slide on the first railing 2. It can be understood that the first end of the second railing 3 can be inserted into the sliding sleeve 41 to abut against the second end of the first railing 2. Further, limiting holes can be opened on the front and back sides of the rectangular frame body. The corresponding setting of the above-mentioned limiting holes and the pin holes 32 means that when the sliding sleeve 41 slides to the second end of the first railing 2 and the second railing 3 is inserted into the sliding sleeve 41 to abut against the first railing 2, the limiting holes are aligned with the pin holes 32 on the second railing 3, so that the pin shaft 42 can pass through the limiting holes on the sliding sleeve 41 and the pin holes 32 on the second railing 3 at the same time, so as to achieve the purpose of fixing the first railing 2 and the second railing 3, and further connecting adjacent two guardrail units.

[0040] For the bridge guardrail provided by the utility model which is convenient for disassembly and assembly, by respectively arranging the first railing 2 and the second railing 3 on both sides of the surface of the mounting rod 1, both the first railing 2 and the second railing 3 extend along the length direction of the bridge, the first end of the first railing 2 is fixedly connected to the mounting rod 1, and the second end of the second railing 3 is fixedly connected to the mounting rod 1. Connecting multiple guardrail units end to end enables multiple first railings 2 and second railings 3 to form a guardrail structure to protect the safety of pedestrians. At the same time, a sliding sleeve 41 is arranged to sleeved on the second end of the first railing 2, the sliding sleeve 41 can slide along the length direction of the first railing 2, and the first end of the second railing 3 can be inserted into the sliding sleeve 41 to abut against the first railing 2. Limiting holes are opened on the sliding sleeve 41, and pin holes 32 are opened at the first end of the second railing 3. The limiting holes and the pin holes 32 are correspondingly arranged, and the pin shaft 42 is used to be inserted into the limiting holes and the pin holes 32 of adjacent guardrail units. Therefore, the first railings 2 and the second railings 3 of adjacent two guardrail units can be connected. When disassembly is needed, just pull out the pin shaft 42 directly, which is convenient and fast.

[0041] Such as Figure 3 and Figure 4As shown in the figure, a slide bar 5 is provided inside the mounting rod 1, and the slide bar 5 can slide up and down in the mounting rod 1. A rack 51 is provided on the outer surface of the slide bar 5, and the rack 51 is fixedly connected to the slide bar 5. A chute is provided at the position of the mounting rod 1 corresponding to the rack 51. A first gear 21 is provided at the first end of the first railing 2, and the first gear 21 is meshed and connected to the rack 51 through the chute. A second gear 31 is provided at the second end of the second railing 3, and the second gear 31 is meshed and connected to the rack 51 through the chute.

[0042] The above-mentioned slide bar 5 can be sleeved in the installation. It can be understood that the mounting rod 1 has a hollow structure. The rack 51 structure can be provided on the outer surface of the slide bar 5, and the rack 51 can be formed by machining on the slide bar 5 so that the rack 51 is formed on the outer surface of the slide bar 5. The slide bar 5 can be rectangular or circular, which is specifically set according to actual needs. Of course, a toothed plate can also be provided on the surface of the slide bar 5, and the toothed plate can be fixedly connected to the slide bar 5 by welding or bolt connection. Further, the first gear 21 can be provided at the first end of the first railing 2 by welding or integral molding. Similarly, the second gear 31 is provided at the second end of the second railing 3, and the first gear 21 and the second gear 31 can be exactly the same. Furthermore, the central axis of the first gear 21 can be rotatably connected to the mounting seat on the mounting rod 1, and the central axis of the second gear 31 can be rotatably connected to the mounting seat on the other side of the mounting rod 1. At the same time, a chute can be provided at the position of the mounting rod 1 corresponding to the rack 51, so that the first gear 21 and the second gear 31 can be in contact and meshed with the rack 51 through the chute. Furthermore, when the first railing 2 and the second railing 3 are rotated and expanded, the first gear 21 and the second gear 31 drive the slide bar 5 to move downward through the rack 51. When the first railing 2 and the second railing 3 are rotated and folded, the first gear 21 and the second gear 31 drive the slide bar 5 to move upward through the rack 51. The volume is reduced for easy carrying.

[0043] Further, a first baffle 52 is provided at the bottom end of the slide bar 5, and the first baffle 52 is fixedly connected to the slide bar 5. A plurality of connecting rods 6 are hinged on the periphery of the first baffle 52, and the plurality of connecting rods 6 are evenly distributed along the periphery of the first baffle 52. A plurality of support rods 7 are provided at the bottom of the mounting rod 1, and the plurality of support rods 7 are all hinged to the mounting rod 1. The plurality of support rods 7 are arranged in one-to-one correspondence with the plurality of connecting rods 6, and one end of the connecting rod 6 away from the first baffle 52 is hinged to the support rod 7.

[0044] The above-mentioned first baffle 52 can be fixedly connected to the sliding rod 5 by means of bolts or welding. A plurality of hinge seats can be arranged on the peripheral side of the first baffle 52, and one end of the connecting rod 6 is connected to the hinge seat. At the same time, a plurality of hinge seats are correspondingly arranged on the peripheral side of the bottom of the mounting rod 1, and one end of the support rod 7 is hinged to the hinge seat on the mounting rod 1. The plurality of support seats are arranged obliquely to play a supporting role. In addition, the end of the connecting rod 6 far from the first baffle 52 can be hinged to the middle of the support rod 7. Specifically, a hinge seat can be arranged in the middle of the support rod 7. Of course, it can be understood that the inclination angle of the support rod 7 and the number of the support rods 7 can be set according to actual needs. The one-to-one correspondence between the plurality of support rods 7 and the plurality of connecting rods 6 means that the number of the support rods 7 is the same as the number of the connecting rods 6, and the interval angle between the plurality of support rods 7 is the same as the interval angle between the plurality of connecting rods 6. Therefore, when the first railing 2 and the second railing 3 are rotated and opened, the first gear 21 and the second gear 31 drive the sliding rod 5 to move downward through the rack 51, thereby driving the connecting rod 6 to drive a plurality of groups of support rods 7 to rotate through the hinge seats on the support rods 7, so that the support rods 7 are changed from the vertical state to the inclined state, thereby supporting the mounting rod 1. When the first railing 2 and the second railing 3 are rotated and folded, the first gear 21 and the second gear 31 drive the sliding rod 5 to move upward through the rack 51, thereby driving the connecting rod 6 to drive a plurality of groups of support rods 7 to rotate through the hinge seats on the support rods 7, so that the support rods 7 are changed from the inclined state to the vertical state, thereby retracting the mounting rod 1 and reducing the volume for easy carrying.

[0045] In some embodiments, the number of the connecting rods 6 is 3.

[0046] It is possible to set the number of both the connecting rod 6 and the support rod 7 to be 3, and the interval angle between the 3 connecting rods 6 is 120 degrees.

[0047] Furthermore, a second baffle 53 is provided at the top of the sliding rod 5. The second baffle 53 is fixedly connected to the sliding rod 5, and the diameter of the second baffle 53 is greater than or equal to the diameter of the mounting rod 1.

[0048] The above-mentioned second baffle 53 can be integrally formed with the sliding rod 5 by welding, or can be connected by means of bolts. The diameter of the second baffle 53 is set to be greater than or equal to the diameter of the mounting rod 1 to limit the displacement of the sliding rod 5 sliding downward, avoid damage to the equipment caused by excessive sliding of the sliding rod 5, and at the same time avoid excessive downward sliding of the sliding rod 5 resulting in excessive inclination of the support rod 7 and unstable support.

[0049] Furthermore, a handle 54 is provided at the top of the second baffle 53.

[0050] The above-mentioned handle 54 is provided to facilitate lifting the device to move it to different positions when the first railing 2 and the second railing 3 are retracted. At the same time, when the first railing 2 and the second railing 3 are rotated up and down, the sliding rod 5 can be pushed by the handle 54 to assist in the rotation of the first railing 2 and the second railing 3. In addition, when the first gear 21 and the second gear 31 are damaged, the sliding of the sliding rod 5 can be pushed by the handle 54 so that the support rod 7 can be smoothly opened.

[0051] As Figure 5 and Figure 6 shown, a limiting plate 421 is provided at one end of the pin shaft 42 away from the sliding sleeve 41.

[0052] The above-mentioned limiting plate 421 is provided to prevent the pin shaft 42 from falling out of the limiting hole and the pin hole 32. Further, a limiting spring 422 is sleeved on the pin shaft 42, and the limiting spring 422 is compressed between the limiting plate 421 and the sliding sleeve 41.

[0053] Therefore, during the sliding process of the sliding sleeve 41, since the limiting spring 422 is in a compressed state, due to the pre-tightening force of the spring, when the pin shaft 42 is aligned with the pin hole 32, the pin shaft 42 automatically extends into the pin hole 32. Of course, in order to further ensure the stability of the pin shaft 42, a retaining piece can be provided at one end of the pin shaft 42 away from the limiting plate 421 to further limit the position of the pin shaft 42.

[0054] In some embodiments, a limiting block 22 is provided at the second end of the first railing 2. The limiting block 22 is fixedly connected to the first railing 2. A limiting groove 411 is formed on the sliding sleeve 41, and the limiting groove 411 can be abutted against the limiting block 22 through the sliding of the sliding sleeve 41.

[0055] The above-mentioned limiting block 22 can be integrally formed with the first railing 2 or welded. It can be understood that the size of the limiting block 22 matches the size of the limiting groove 411 so that the sliding sleeve 41 can slide smoothly. The limiting groove 411 can be abutted against the limiting block 22 through the sliding of the sliding sleeve 41. That is to say, the sliding distance of the sliding sleeve 41 on the first railing 2 is the length of the chute on the sliding sleeve 41. When the sliding sleeve 41 slides left and right, the left and right ends of the chute can be respectively abutted against the limiting block 22. It can be understood that when the sliding sleeve 41 slides to the second end of the first railing 2, the limiting block 22 can be abutted against the left end of the chute. At this time, the limiting hole is aligned with the pin hole 32 for the insertion of the pin shaft 42.

[0056] In some other embodiments, in the vertical direction, the size of the first railing 2 is the same as that of the second railing 3. That is to say, the widths of the first railing 2 and the second railing 3 are the same, which is not only convenient for batch processing, but also convenient for the connection between the second railing 3 and the first railing 2.

[0057] It should be noted that relational terms such as "first" and "second" in this text are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0058] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments described herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bridge guardrail that is easy to disassemble and assemble, characterized in that: It comprises a plurality of guardrail units connected end to end in sequence, and two adjacent guardrail units are connected via a connecting component (4); The guardrail unit comprises a mounting rod (1), a first railing (2) and a second railing (3) are respectively provided on both sides of the mounting rod (1), the first railing (2) and the second railing (3) both extend along the length direction of the bridge, a first end of the first railing (2) is fixedly connected to the mounting rod (1), and a second end of the second railing (3) is fixedly connected to the mounting rod (1); The connecting assembly (4) comprises a sliding sleeve (41) and a pin shaft (42); the sliding sleeve (41) is sleeved on the second end of the first railing (2); the sliding sleeve (41) can slide along the length direction of the first railing (2); the first end of the second railing (3) can be inserted into the sliding sleeve (41) and abut against the first railing (2); a limiting hole is provided on the sliding sleeve (41); a pin hole (32) is provided at the first end of the second railing (3); the limiting hole is arranged corresponding to the pin hole (32); the pin shaft (42) is used to be inserted into the limiting hole and the pin hole (32) of the adjacent guardrail unit.

2. The bridge guardrail that is easy to disassemble and assemble according to claim 1 is characterized in that: A sliding rod (5) is provided inside the mounting rod (1), and the sliding rod (5) can slide up and down in the mounting rod (1); The outer surface of the slide bar (5) is provided with a rack (51), the rack (51) is fixedly connected to the slide bar (5), and a slide groove is provided at a position corresponding to the mounting rod (1) and the rack (51); A first gear (21) is provided at the first end of the first railing (2), and the first gear (21) is meshedly connected with the rack (51) through the sliding groove; a second gear (31) is provided at the second end of the second railing (3), and the second gear (31) is meshedly connected with the rack (51) through the sliding groove.

3. The bridge guardrail that is easy to disassemble and assemble according to claim 2 is characterized in that: A first baffle (52) is provided at the bottom end of the slide bar (5), the first baffle (52) is fixedly connected to the slide bar (5), a plurality of connecting rods (6) are hingedly connected to the peripheral side of the first baffle (52), and the plurality of connecting rods (6) are evenly distributed along the peripheral side of the first baffle (52); A plurality of support rods (7) are provided at the bottom of the mounting rod (1), and the plurality of support rods (7) are all hinged to the mounting rod (1). The plurality of support rods (7) are arranged in one-to-one correspondence with the plurality of connecting rods (6), and one end of the connecting rod (6) away from the first baffle (52) is hinged to the support rod (7).

4. The bridge guardrail that is easy to disassemble and assemble according to claim 3 is characterized in that: The number of the connecting rods (6) is 3.

5. The easily disassembled bridge guardrail according to claim 2, characterized in that: A second baffle (53) is provided on the top of the slide bar (5), the second baffle (53) is fixedly connected to the slide bar (5), and the diameter of the second baffle (53) is greater than or equal to the diameter of the mounting bar (1).

6. The easily disassembled bridge guardrail according to claim 5, characterized in that: A handle (54) is provided on the top of the second baffle (53).

7. The easily disassembled bridge guardrail according to claim 1, characterized in that: A limiting plate (421) is provided at one end of the pin shaft (42) away from the sliding sleeve (41).

8. The easily disassembled bridge guardrail according to claim 7, characterized in that: A limit spring (422) is sleeved on the pin shaft (42), and the limit spring (422) is compressed between the limit plate (421) and the sliding sleeve (41).

9. The easily disassembled bridge guardrail according to claim 1, characterized in that: A limit block (22) is provided at the second end of the first railing (2), the limit block (22) being fixedly connected to the first railing (2), and a limit groove (411) is provided on the sliding sleeve (41), and the limit groove (411) can abut against the limit block (22) through the sliding of the sliding sleeve (41).

10. The easily disassembled bridge guardrail according to claim 1, characterized in that: In the vertical direction, the size of the first railing (2) is the same as the size of the second railing (3).

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