Foldable bridge and road protective fence

Abstract

The utility model belongs to the field of protective fences, and particularly relates to a foldable bridge and road protective fence which comprises a base and a stand column, and the stand column is inserted in the center of the top of the base. A flexible belt is arranged between every two adjacent stand columns, each flexible belt is of a double-layer structure, a plurality of vertical rods are bonded between the two layers of flexible belts, a limiting assembly is arranged between the adjacent vertical rods on the two sides, and each limiting assembly comprises a rotating structure. The vertical rods on the two sides are supported through the supporting rods, so that the supporting rods and the vertical rods form a stable supporting structure, the whole flexible belt is in a tightened state so as to be unfolded to form a complete guardrail structure, and the isolation and protection effects can be achieved; when the protective fence is not used, the supporting rods are rotated to be in the vertical state, at the moment, the supporting rods do not support the vertical rods on the two adjacent sides any more, the flexible belts can be rolled up, and therefore the occupied space of the protective fence during storage is reduced, and carrying and storage are convenient.

Description

Technical Field

[0001] The utility model relates to the field of guardrails, in particular to a foldable bridge and highway guardrail. Background Art

[0002] In municipal roads, guardrails are usually installed on the road surface to separate different lanes. Since the cost of guardrails is relatively low and they can be disassembled, they are widely used in current municipal roads.

[0003] However, the existing guardrails are usually assembled by a number of rods through bolts, resulting in a long construction and installation time for the guardrails. After use, they need to be completely disassembled for easy transportation and storage, which brings inconvenience to the use of the guardrails. In addition, the components of the guardrails occupy a large space, making it inconvenient for transportation and storage. Therefore, a foldable bridge and highway guardrail is proposed to solve the above problems. Summary of the Utility Model

[0004] In order to make up for the deficiencies of the prior art and solve the problem that the components of the existing guardrails occupy a large space and are inconvenient for transportation and storage, the utility model provides a foldable bridge and highway guardrail.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows: A foldable bridge and highway guardrail of the utility model includes a base and a column, and the column is inserted into the center of the top of the base.

[0006] A flexible belt is arranged between two adjacent columns. The flexible belt is double-layered, and a plurality of vertical rods are bonded between the two layers of the flexible belt. A limiting component is arranged between two adjacent vertical rods on both sides, and the limiting component includes a rotating structure.

[0007] The rotating structure includes a connecting pipe, a first baffle and a second baffle. The connecting pipe is rotatably installed in the mounting holes opened on the flexible belts on both sides. The first baffle and the second baffle are respectively fixedly connected to both ends of the connecting pipe. The first baffle and the second baffle are respectively arranged on the outer sides of the flexible belts on both sides. A support rod is fixedly connected to the connecting pipe, and the connecting pipe is located in the middle of the support rod. Accommodation cavities II are respectively opened at both ends of the support rod. Plug blocks are slidably installed in the accommodation cavities II, and the ends of the plug blocks slide and extend to the outside of the accommodation cavities. Slots adapted to the plug blocks are opened on the side walls of the vertical rods, and a spring II for resetting the plug blocks is installed inside the accommodation cavity II.

[0008] Preferably, the end of the plug block is round-headed, and the slot is adapted to the end of the plug block.

[0009] Preferably, connecting plates are fixedly connected to both ends of the flexible belt respectively. The connecting plates are slidably installed in convex mounting grooves formed on the side walls of the columns, and the contours of the connecting plates are adapted to the mounting grooves.

[0010] Preferably, the two outermost vertical rods are fixedly connected to the connecting plates on both sides respectively.

[0011] Preferably, movable grooves are formed inside both ends of the support rod. A limiting rod is slidably installed in the middle of the movable groove. One end of the limiting rod extends into the second accommodating cavity, and the other end of the limiting rod extends into the inner cavity of the connecting pipe. A push plate is fixedly connected to the end of the limiting rod located in the cavity of the connecting pipe. A threaded rod is rotatably installed in the middle of the cavity of the connecting pipe. The threaded rod penetrates through the sliding hole at the center of the second baffle, and a turning knob is fixedly connected to the end of the threaded rod. A cam is fixedly connected to the middle of the threaded rod. A first accommodating cavity is formed at the connection position between the movable groove and the connecting pipe. A first spring is installed in the first accommodating cavity. Both ends of the first spring are fixedly connected to the push plate and the inner wall of the first accommodating cavity respectively.

[0012] Preferably, an internal threaded sleeve is fixedly connected to the center of the inner wall of the first baffle. The end of the threaded rod away from the turning knob is threadedly connected to the internal threaded sleeve.

[0013] Preferably, anti-slip patterns are formed on both the turning knob and the side wall of the second baffle.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. By providing structures such as a flexible belt, vertical rods, support rods, connecting pipes, a first baffle, and a second baffle, the present utility model drives the support rods to rotate by rotating the first baffle, the second baffle, and the connecting pipe, so that the support rods rotate to a horizontal state. At this time, the insertion blocks at both ends of the support rods are pushed by the second spring and inserted into the slots, thereby supporting the support rods between the two side vertical rods, enabling the support rods and the vertical rods to form a stable support structure for supporting the inner side of the flexible belt, making the overall flexible belt in a taut state, so as to unfold to form a complete guardrail structure, which can achieve an isolation and protection effect; in addition, when not in use, the support rods are rotated to a vertical state, and then the flexible belt is removed from the columns on both sides. At this time, the support rods no longer support the adjacent side vertical rods, and the flexible belt can be wound up, thereby reducing the occupied space of the guardrail during storage and facilitating handling and storage.

[0016] 2. When the support rods of the present utility model are horizontally supported between the two side vertical rods, rotate the turning knob. The turning knob drives the threaded rod to rotate, and then drives the cam to rotate. When the cam rotates, it pushes the two push plates to move outward, and then drives the limiting rods to move, so that the limiting rods abut against the side walls of the insertion blocks, preventing the insertion blocks from being retracted into the second accommodating cavity. At this time, the insertion blocks are always inserted into the slots and will not detach, enabling the support rods to stably support the two side vertical rods. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1;

[0019] Figure 2 It is a schematic top view structure diagram of Embodiment 1;

[0020] Figure 3 It is a schematic diagram of the inner side structure of the flexible belt in Embodiment 1;

[0021] Figure 4 It is a partial structure cross-sectional view of Embodiment 1;

[0022] Figure 5 For A in Embodiment 1 Figure 4 It is an enlarged schematic diagram of the structure at A;

[0023] Figure 6 For B in Embodiment 1 Figure 4 It is an enlarged schematic diagram of the structure at B.

[0024] In the figure: 1, base; 2, column; 21, installation groove; 3, connecting plate; 4, flexible belt; 5, vertical rod; 6, limiting component; 61, support rod; 62, baffle one; 63, baffle two; 64, turning knob; 65, threaded rod; 66, connecting pipe; 67, movable groove; 68, accommodating cavity one; 69, spring one; 610, push plate; 611, cam; 612, internal thread sleeve; 613, limiting rod; 614, accommodating cavity two; 615, spring two; 616, insertion block; 617, insertion slot. Detailed Embodiment

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0026] Embodiment 1

[0027] Please refer to Figures 1-6As shown in the figure, a foldable bridge highway guardrail includes a base 1 and a column 2, and the column 2 is inserted into the center of the top of the base 1;

[0028] A flexible belt 4 is arranged between two adjacent columns 2. The flexible belt 4 is double-layered, and a plurality of vertical rods 5 are bonded between the two layers of the flexible belt 4. A limiting component 6 is arranged between two adjacent vertical rods 5 on both sides, and the limiting component 6 includes a rotating structure;

[0029] The rotating structure includes a connecting pipe 66, a first baffle 62 and a second baffle 63. The connecting pipe 66 is rotatably installed in the mounting holes formed in the flexible belts 4 on both sides. The first baffle 62 and the second baffle 63 are respectively fixedly connected to both ends of the connecting pipe 66. The first baffle 62 and the second baffle 63 are respectively arranged on the outer sides of the flexible belts 4 on both sides. A support rod 61 is fixedly connected to the connecting pipe 66. The connecting pipe 66 is located at the middle position of the support rod 61. The size of the support rod 61 is adapted to the distance between the flexible belts 4 on both sides. Accommodation cavities two 614 are respectively formed at both ends of the support rod 61. A plug 616 is slidably installed in the accommodation cavity two 614. The end of the plug 616 extends out of the accommodation cavity in a sliding manner. A slot 617 adapted to the plug 616 is formed on the side wall of the vertical rod 5. A spring two 615 for resetting the plug 616 is installed inside the accommodation cavity two 614;

[0030] During operation, both ends of the flexible belt 4 are installed on the columns 2 on both sides. Then, by rotating the first baffle 62, the second baffle 63 and the connecting pipe 66, the support rod 61 is driven to rotate, so that the support rod 61 rotates to a horizontal state. At this time, the plugs 616 at both ends of the support rod 61 are inserted into the slots 617 under the push of the spring two 615, so that the support rod 61 is supported between the vertical rods 5 on both sides, and a stable support structure is formed by the support rod 61 and the vertical rod 5 for supporting the inner side of the flexible belt 4, so that the whole flexible belt 4 is in a taut state, so as to be unfolded to form a complete guardrail structure, which can play an isolation and protection effect; in addition, when not in use, the support rod 61 is rotated to a vertical state, and then the flexible belt 4 is removed from the columns 2 on both sides. At this time, the support rod 61 no longer supports the vertical rods 5 on adjacent sides, and the flexible belt 4 can be wound up, thereby reducing the occupied space of the guardrail during storage and facilitating handling and storage.

[0031] The end of the insertion block 616 is set to be round-headed, and the insertion slot 617 is adapted to the end of the insertion block 616; during operation, it is convenient for the insertion block 616 to be quickly inserted into and detached from the insertion slot 617. When the support rod 61 is needed to support the two side vertical rods 5, during the rotation of the support rod 61 from the vertical position to the horizontal position, the end of the insertion block 616 first contacts the side wall of the vertical rod 5 and is squeezed into the second accommodation cavity 614, and the second spring 615 is compressed. When the insertion block 616 moves to align with the insertion slot 617, the insertion block 616 is pushed by the second spring 615 to move and be inserted into the insertion slot 617; similarly, when the support rod 61 rotates from the horizontal position to the vertical position, the insertion block 616 is squeezed into the second accommodation cavity 614 by the edge of the insertion slot 617 so that the insertion block 616 can be detached from the insertion slot 617.

[0032] Both ends of the flexible belt 4 are fixedly connected with connecting plates 3 respectively. The connecting plates 3 are slidably installed in the convex installation grooves 21 opened on the side walls of the columns 2, and the contour of the connecting plates 3 is adapted to the installation grooves 21; during operation, through the cooperation of the connecting plates 3 and the installation grooves 21, the flexible belt 4 can be quickly and fixedly installed on the two side columns 2 to realize the quick disassembly and assembly of the flexible belt 4.

[0033] The two outermost vertical rods 5 are respectively fixedly connected with the connecting plates 3 on both sides; during operation, so that the entire flexible belt 4 can be tightened by the support rod 61.

[0034] Activity grooves 67 are opened inside both ends of the support rod 61. A limiting rod 613 is slidably installed in the middle of the activity grooves 67. One end of the limiting rod 613 extends into the second accommodation cavity 614, and the other end of the limiting rod 613 extends into the inner cavity of the connecting pipe 66. A push plate 610 is fixedly connected to the end of the limiting rod 613 located in the cavity of the connecting pipe 66. A threaded rod 65 is rotatably installed in the middle of the cavity of the connecting pipe 66. The threaded rod 65 passes through the sliding hole in the center of the second baffle 63, and a rotary knob 64 is fixedly connected to the end of the threaded rod 65. A cam 611 is fixedly connected to the middle of the threaded rod 65. An accommodation cavity one 68 is opened at the connection position between the activity groove 67 and the connecting pipe 66. A first spring 69 is installed in the accommodation cavity one 68. Both ends of the first spring 69 are fixedly connected to the push plate 610 and the inner wall of the accommodation cavity one 68 respectively;

[0035] During operation, in the initial state, the push plate 610 and the limit rod 613 are pushed by the first spring 69, so that the end of the limit rod 613 is separated from the side wall of the insert block 616, and it will not block the insert block 616 from being received into the second accommodation cavity 614, and will not affect the movement of the insert block 616. When the support rod 61 is horizontally supported between the two vertical rods 5 on both sides, the rotary knob 64 is rotated. The rotary knob 64 drives the threaded rod 65 to rotate, and then drives the cam 611 to rotate. When the cam 611 rotates, it pushes the push plates 610 on both sides to move outward, and then drives the limit rod 613 to move, so that the limit rod 613 abuts against the side wall of the insert block 616, preventing the insert block 616 from being received into the second accommodation cavity 614. At this time, the insert block 616 is always inserted into the slot 617 and will not come off, so that the support rod 61 can stably support the two vertical rods 5 on both sides.

[0036] A threaded sleeve 612 is fixedly connected to the center of the inner wall of the first baffle 62. The end of the threaded rod 65 away from the rotary knob 64 is threadedly connected to the threaded sleeve 612. During operation, the end of the threaded rod 65 rotates inside the threaded sleeve 612, and there is damping between the threaded sleeve 612 and the threaded rod 65 to limit the threaded rod 65, so that the limit rod 613 will not automatically reset, so that the cam 611 can maintain the state of pushing the push plate 610, so that the limit rod 613 continuously limits the limit block, so that the support rod 61 can stably support the two vertical rods 5 on both sides.

[0037] Embodiment 2

[0038] Please refer to Figure 5 As shown, compared with Embodiment 1, as another implementation manner of the present invention, anti-slip threads are provided on both the rotary knob 64 and the side wall of the second baffle 63. During operation, it is avoided that slipping occurs when the rotary knob 64 and the second baffle 63 are rotated, which is convenient for rotation.

[0039] In the description of this specification, the description of reference terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0040] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A foldable bridge highway guardrail, characterized in that: It comprises a base (1) and a column (2), wherein the column (2) is plugged into the top center of the base (1); A flexible belt (4) is arranged between two adjacent columns (2), the flexible belt (4) is double-layered, a plurality of vertical rods (5) are bonded between the two layers of the flexible belt (4), and a limiting component (6) is arranged between the vertical rods (5) adjacent to each other on both sides, the limiting component (6) comprising a rotating structure; The rotating structure comprises a connecting tube (66), a baffle plate 1 (62) and a baffle plate 2 (63); the connecting tube (66) is rotatably mounted in mounting holes provided on the flexible belts (4) on both sides; the baffle plate 1 (62) and the baffle plate 2 (63) are respectively fixedly connected to both ends of the connecting tube (66); the baffle plate 1 (62) and the baffle plate 2 (63) are respectively arranged on the outside of the flexible belts (4) on both sides; a support rod (61) is fixedly connected to the connecting tube (66); The tube (66) is located in the middle of the support rod (61), and two accommodating cavities (614) are respectively provided at both ends of the support rod (61), and an insert block (616) is slidably installed in the second accommodating cavity (614), and the end of the insert block (616) slides and extends to the outside of the accommodating cavity. A slot (617) adapted to the insert block (616) is provided on the side wall of the vertical rod (5), and a spring (615) is installed inside the second accommodating cavity (614) to reset the insert block (616).

2. The foldable bridge highway guardrail according to claim 1, characterized in that: The end of the plug block (616) is configured to be round head-shaped, and the slot (617) is adapted to fit the end of the plug block (616).

3. A foldable bridge highway guardrail according to claim 2, characterized in that: The two ends of the flexible belt (4) are respectively fixedly connected with connecting plates (3), and the connecting plates (3) are slidably installed in convex installation grooves (21) provided on the side walls of the columns (2), and the contour of the connecting plates (3) is adapted to the installation grooves (21).

4. The foldable bridge highway guardrail according to claim 3 is characterized by: The two vertical rods (5) located at the outermost sides are respectively fixedly connected to the connecting plates (3) on both sides.

5. The foldable bridge highway guardrail according to claim 4, characterized in that: Both ends of the support rod (61) are provided with movable grooves (67), a limiting rod (613) is slidably installed in the middle of the movable groove (67), one end of the limiting rod (613) extends into the second accommodating chamber (614), and the other end of the limiting rod (613) extends into the inner cavity of the connecting tube (66), the limiting rod (613) is located in the cavity of the connecting tube (66) and is fixedly connected to a push plate (610), and a threaded rod (65) is rotatably installed in the middle of the cavity of the connecting tube (66) The threaded rod (65) passes through the sliding hole in the center of the baffle plate (63), and a knob (64) is fixedly connected to the end of the threaded rod (65). The middle of the threaded rod (65) is fixedly connected to a cam (611). A receiving chamber (68) is provided at the connection position between the movable groove (67) and the connecting pipe (66). A spring (69) is installed in the receiving chamber (68). The two ends of the spring (69) are respectively fixedly connected to the push plate (610) and the inner wall of the receiving chamber (68).

6. The foldable bridge highway guardrail according to claim 5, characterized in that: An internal threaded sleeve (612) is fixedly connected to the center of the inner wall of the baffle plate (62), and one end of the threaded rod (65) away from the knob (64) is threadedly connected to the internal threaded sleeve (612).

7. The foldable bridge highway guardrail according to claim 6, characterized in that: The rotating knob (64) and the second side wall of the baffle (63) are both provided with anti-slip grooves.

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