Protective fence

Abstract

The invention discloses a protective fence which comprises a pair of supporting rods, first protective plates are fixedly connected to the same sides of the supporting rods, and a first groove is formed in one side of one supporting rod; the threaded rod assembly comprises a threaded rod and a first moving block, the threaded rod is rotationally connected into the first groove, the first moving block is embedded into the first groove in a sliding mode and is in threaded connection with the threaded rod, and a second protection plate is fixedly connected to the first moving block; according to the connecting assembly, fixing frames are arranged on the sides, deviating from each other, of a pair of supporting rods, third grooves are formed in the fixing frames, fixing blocks are slidably connected into the third grooves, connecting holes are formed in the ends of the fixing blocks, and the adjacent protective fences are connected by inserting connecting rods into the connecting holes. The height of the protective fence can be adjusted by moving the second protective plate, and convenience and rapidness are achieved. The lengths of the fixing blocks are adjusted according to the inclination characteristics of the ground, so that the connecting holes of the adjacent protective fences are oppositely arranged, and the protective fences can adapt to inclined road surfaces.

Description

Technical Field

[0001] The present application belongs to the technical field of safety protection facilities, and specifically relates to a guardrail. Background Art

[0002] A foundation pit is a pit dug at the foundation's designed location, based on the base elevation and dimensions. Municipal road construction generally requires excavating a foundation pit at the construction site. For example, deep foundation pits are often excavated during highway construction. However, due to their depth, leaving them exposed directly presents numerous safety risks. Therefore, during construction, protective structures are typically installed around the edges of the pit to prevent construction workers or outsiders from accidentally falling into it.

[0003] Existing deep foundation pit guardrails typically have simple structures and a single fixing method, making them difficult to adapt to changing working environments and requirements. For example, existing guardrails are generally not height-adjustable, making them unable to adapt to different protection heights. Moreover, the top edge of the foundation pit is not completely horizontal; for various reasons, some areas of the top edge may be uneven or have a certain slope. Current guardrails cannot reliably adapt to uneven road surfaces, resulting in poor reliability. Summary of the Invention

[0004] To address the above issues, the present application provides a guardrail that can be adjusted in height by moving the second guard plate, which is convenient and quick. The length of the fixing block is adjusted according to the slope of the ground, so that the connection holes of adjacent guardrails are opposite each other, which allows the guardrail to adapt to inclined roads.

[0005] The present application provides a guardrail, comprising:

[0006] A pair of support rods, with a first protective plate fixedly connected to the same side thereof, and a first groove provided on one support rod, the first groove being provided along the length direction of the support rod;

[0007] The threaded rod assembly includes a threaded rod and a first moving block, wherein the threaded rod is rotatably connected in the first groove, the first moving block is slidably embedded in the first groove and is threadedly connected to the threaded rod, and a second protective plate is fixedly connected to the first moving block;

[0008] The connecting component is provided with a third groove arranged along the length direction of a pair of support rods on the side facing away from each other, and a fixed block is slidably connected in the third groove. The end of the fixed block is provided with a connecting hole, and the adjacent guardrails are connected by inserting the connecting rod into the connecting hole.

[0009] By setting the first moving block, rotating the threaded rod can drive the first moving block to move, thereby driving the second protective plate to move, and the height position of the second protective plate can be adjusted conveniently and quickly, increasing the height adjustment range of the guardrail and expanding its application scenario range.

[0010] For example, in a play area for infants and young children, the first protective plate may be sufficient for protection, without the second protective plate being raised. However, in other application scenarios such as production and construction sites and road isolation, the second protective plate can be raised to increase the protection height.

[0011] Optionally, the fixing block is telescopic.

[0012] By setting the fixed blocks, the two fixed blocks can be slid, the distance between the two fixed blocks can be adjusted, and the length of the fixed blocks can be adjusted according to the inclined characteristics of the ground, so that the connection holes of adjacent guardrails are opposite, and then the connecting rods are inserted to connect the guardrails, which allows the guardrails to adapt to inclined roads.

[0013] Optionally, each support rod has a roller at its lower end.

[0014] The guardrail can be moved conveniently, which greatly improves the efficiency of moving and transporting the guardrail.

[0015] Optionally, a first bevel gear is coaxially fixedly connected to the bottom end of the threaded rod, and a second bevel gear is meshed with the first bevel gear. The gear shaft of the second bevel gear passes through the side of the first protective plate of the support rod and is fixedly connected to the rotating handle.

[0016] The threaded rod is driven to rotate by the cooperation of the bevel gears, thereby driving the second protective plate to move up and down. The operation method is simple and efficient.

[0017] Optionally, a hollow structure is provided on the first protective plate.

[0018] The hollow structure can reduce the weight of the guardrail and improve its moving and carrying efficiency.

[0019] Optionally, the bottom of the second protective plate is fixedly connected to the first moving block.

[0020] By fixedly connecting the bottom of the second protective plate to the first movable block, when the first movable block moves to the lower part of the threaded rod, the second protective plate can be retracted to a height where its top end is lower than or flush with the height of the first protective plate. When the first movable block moves to the upper part of the threaded rod, the top end of the second protective plate is higher than the top end of the first protective plate, thereby increasing the height of the entire guardrail.

[0021] Optionally, a second groove is provided on the side of the other support rod opposite to the protective plate, and a first sliding rod is fixedly installed in the second groove along the length direction of the second groove. A second moving block is slidingly connected to the outer periphery of the first sliding rod, and the second moving block is fixedly connected to the second protective plate.

[0022] The second protective plate can be stably raised and lowered by the supporting effect of the second moving block on the second protective plate.

[0023] Optionally, an L-shaped mounting plate is further included, one side of the L-shaped mounting plate is slidably connected to the support rod, and the other side of the L-shaped mounting plate is provided with a mounting hole, and the guardrail is installed on the ground by passing bolts through the mounting hole.

[0024] Optionally, a fixing rod is provided in the third groove along its length direction, and the fixing block is sleeved on the outer circumference of the fixing rod.

[0025] The first groove is provided on a side of the support rod opposite to the first protective plate.

[0026] Compared with the prior art, this application has the following beneficial effects:

[0027] (1) The present invention sets a first moving block and rotates the threaded rod to drive the first moving block to move, thereby driving the second protective plate to move. The height position of the second protective plate can be adjusted and its position can be adjusted according to needs, thereby increasing the protective height, which is convenient and quick.

[0028] (2) The present invention sets fixed blocks, which can slide two fixed blocks, adjust the distance between the two fixed blocks, and adjust the length of the fixed blocks according to the tilt characteristics of the ground, so that the connection holes of adjacent guardrails are opposite to each other, and then insert the connecting rod to connect the guardrails, which allows the guardrails to adapt to the tilted road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A front view of a guardrail according to an embodiment of the present invention;

[0030] Figure 2 A cross-sectional view of a guardrail according to an embodiment of the present invention;

[0031] Figure 3 is a schematic diagram of a fixing frame according to an embodiment of the present invention;

[0032] Figure 4 Schematic diagram of connecting adjacent guardrails according to an embodiment of the present invention.

[0033] Reference numerals: 1, support rod; 2, first protective plate; 3, first groove; 4, threaded rod; 5, first moving block; 6, second protective plate; 7, L-shaped mounting plate; 8, fixing frame; 9, fixing rod; 10, fixing block; 11, connecting hole; 12, connecting rod; 13, moving wheel; 14, first gear; 15, second gear; 16, rotating handle; 17, first sliding rod; 18, second moving block, second groove 31, third groove 81 DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after the connection remains unchanged. "Rotational connection" means that the two are connected to each other and can rotate relative to each other after the connection. The directional terms mentioned in the embodiments of the present application, such as "upper", "lower", "inner", "outer", etc., are only referenced to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. Among them, the two components are obtained by an integrated structure through an integrated molding process, which means that in the process of forming one of the two components, the component is connected to the other component, and there is no need to connect the two components together through reprocessing (such as bonding, welding, snap connection, screw connection).

[0036] See also Figure 1-4 This embodiment provides a guardrail that can be used for safety protection of deep foundation pits on highways, including a pair of support rods 1, which serve as the supporting body of the guardrail, on the one hand, used to connect with the ground, and on the other hand, used to install the guard plate; a threaded rod assembly, used to adjust the height of the guard plate to adapt to different protection height requirements; a connecting assembly, used to connect with adjacent guardrails to adapt to different slopes of road surface.

[0037] A pair of support rods 1 are vertically spaced apart, and the spacing can be set as needed, for example, the spacing is 1m. The cross section of each support rod 1 can be square, circular or other shapes, but square is preferred for ease of operation and processing.

[0038] A first protective plate 2 is fixedly connected to the same side of a pair of support rods 1. The first protective plate 2 can be a whole plate, and a hollow structure can be set on it, for example Figure 1 In the embodiment, four long hollow holes are provided on the first protective plate 2 to reduce the weight of the guardrail.

[0039] A first groove 3 is provided on the side of a support rod 1 opposite to the protective plate, and the first groove 3 is provided along the length direction of the support rod. The threaded rod assembly includes a threaded rod 4 and a first movable block 5, and the threaded rod 4 is rotatably connected in the first groove 3. The two ends of the threaded rod 4 are rotatably mounted on the upper and lower ends of the first groove 3, and the threaded rod 4 is connected to the first movable block 5 by a thread, and the first movable block 5 is slidably embedded in the first groove. For example, if the first groove is square, the cross-section of the first movable block is also square, and it contacts and slides with the inner side of the first groove. A second protective plate 6 is fixedly connected to the first movable block 5, and the first movable block 5 can be driven to move up and down by rotating the threaded rod 4, thereby moving the second protective plate 6 up and down. To allow the second guard plate 6 to have a larger height adjustment range, the bottom of the second guard plate can be fixedly connected to the first movable block 5. In this way, when the first movable block 5 moves to the lower part of the threaded rod 4, the second guard plate can be retracted until its top height is lower than or flush with the height of the first guard plate. When the first movable block 5 moves to the upper part of the threaded rod 4, the top height of the second guard plate 6 is higher than the top height of the first guard plate 5, thereby increasing the height of the entire guardrail. The position of the second guard plate can be adjusted as needed, that is, the protective height of the guardrail can be adjusted conveniently and quickly.

[0040] In some embodiments, a second groove 31 is provided on the side of the other support rod 1 opposite the protective plate. A first sliding rod 17 is fixedly mounted within the second groove 31 along the length of the second groove. A second movable block 18 is slidably connected to the outer periphery of the first sliding rod 17. One side of the second movable block 18 is fixedly connected to the second protective plate 6. The first sliding rod 17 serves as a movement limiter for the second protective plate 6. When the threaded rod 4 is rotated, the second protective plate 6 moves accordingly. During this movement, the second movable block 18 simultaneously moves on the first sliding rod 17, reliably assisting in the movement of the second protective plate.

[0041] In some embodiments, a pair of support rods 1 are provided with a fixing frame 8 along their length on the side facing away from each other. A third groove 81 is provided in the fixing frame 8 along their length. A fixing rod 9 is installed in the third groove 81 along its length. A fixing block 10 is slidably sleeved on the outer periphery of each fixing rod 9. A connecting hole 11 is provided at one end of the fixing block 10. For example, two fixing blocks 10 are installed in one third groove 81. When connected, multiple guardrails are arranged adjacent to each other and connected by connecting rods inserted into the connecting holes 11. The connecting rods can be fixed by inserting cotter pins into the connecting rods to connect the adjacent guardrails.

[0042] In order to ensure that the fixing block 10 can be positioned at this position after sliding into place, the fixing block 10 can be connected to the fixing rod 9 by interference fit, or a screw hole can be provided on the fixing block 10, and the screw is screwed into the screw hole, and the end of the screw presses against the outer periphery of the fixing rod, thereby positioning the fixing block 10 at this position.

[0043] In some embodiments, the fixing block 10 can be telescopic, for example, a two-section or three-section telescopic fixing block 10, and the connecting hole 11 is provided at the end of the fixing block 10 that extends outward. After adjacent guardrails are arranged, the adjacent guardrails are connected by passing the connecting rod 12 through the connecting holes 11 of the adjacent guardrails.

[0044] The fixing block 10 is telescopic and can be applied to inclined roads, such as Figure 4 As shown, due to the downward slope of the road surface on the left side, the guardrail is lower on the left side and higher on the right side. If the fixing block were non-retractable, the upward tilt of the fixing block would cause the connection holes of the fixing block on the left guardrail to misalign with those of the fixing block on the right guardrail, making it impossible to insert the connecting rod. However, by slightly extending the upper fixing block on the left guardrail, its connection hole can be aligned with the connection holes of the other fixing blocks, allowing the insertion of the connecting rod 12 to connect the adjacent guardrail. This shows that the use of a retractable fixing block can adapt to the deflection angle of adjacent guardrails, allowing for reliable guardrail deployment on inclined roads.

[0045] In some embodiments, a roller 13 is provided at the lower end of each support rod 1 to facilitate the movement of the guardrail.

[0046] In some embodiments, an L-shaped mounting plate 7 is also connected to the lower portion of each support rod 1. One side of the L-shape is connected to the support rod 1, and the other side of the L-shape is provided with mounting holes. Bolts are inserted through the mounting holes to mount the guardrail to the ground. For example, by pushing the guardrail, the guardrail is moved into position under the drive of the rollers. The L-shaped mounting plate can then be lowered until one side of it contacts the ground, and then bolted to the ground. It should be noted that one side of the L-shaped mounting plate can be connected to the support rod 1 by sliding up and down, or it can be connected to the support rod 1 by rotating. For example, one side of the L-shaped mounting plate can have a slot, and screws passing through the slot can be used to secure one side of the L-shaped mounting plate to the support rod 1. When it is necessary to slide and lower, the screws are loosened, the L-shaped mounting plate is lowered, and then bolted to the ground. For example, the L-shaped mounting plate and the support rod 1 have a tight rotational connection. When it is necessary to install, it is rotated until it is roughly flush with the bottom of the roller 13 and then bolted to the ground. When it is no longer necessary to install, it can be rotated to the side.

[0047] In some embodiments, the threaded rod 4 can be driven by directly rotating the threaded rod 4 manually, or by transmitting the driving force through other transmission components. For example, a first bevel gear 14 is coaxially fixedly connected to the bottom end of the threaded rod 4, and a second bevel gear meshes with the first bevel gear 14. The gear shaft of the second bevel gear extends through the side of the support rod where the first protective plate is located and is fixedly connected to a rotating handle 16. Rotating the rotating handle 16 rotates the second bevel gear, which in turn rotates the first bevel gear 14, and thus the threaded rod 4.

[0048] The working principle and usage process of the guardrail of the present invention: When in use, rotating the rotating handle 16 can drive the second gear 15 to rotate, and the first gear 14 and the second gear 15 are engaged with each other, which can drive the first gear 14 to rotate, thereby driving the threaded rod 4 to rotate, and driving the first moving block 5 to move, thereby driving the second protective plate 6 to move, and the height position of the second protective plate 6 can be adjusted, and its position can be adjusted according to needs to increase the protection height, slide the L-shaped mounting plate 7, move it to contact the ground, and then fix it with bolts, slide the two fixed blocks 10, adjust the distance between the two fixed blocks 10, and then connect it with another guardrail, use the connecting rod 12 to insert into the connecting hole 11, and connect them to each other. Multiple guardrails are easy to connect, and the angle of each can be adjusted while connecting.

[0049] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications shall fall within the scope of protection of the claims of the present invention.

Claims

1. A guardrail, characterized in that: include: A pair of support rods, with a first protective plate fixedly connected to the same side thereof, and a first groove provided on one support rod, the first groove being provided along the length direction of the support rod; The threaded rod assembly includes a threaded rod and a first moving block, wherein the threaded rod is rotatably connected in the first groove, the first moving block is slidably embedded in the first groove and threadedly connected to the threaded rod, and a second protective plate is fixedly connected to the first moving block; The connecting component is provided with a third groove arranged along the length direction of a pair of support rods on the side facing away from each other, and a fixed block is slidably connected in the third groove. The end of the fixed block is provided with a connecting hole, and the adjacent guardrails are connected by inserting the connecting rod into the connecting hole.

2. The guardrail according to claim 1, characterized in that: The fixed block is telescopic.

3. The guardrail according to claim 1, characterized in that: Each support rod has a roller at its lower end.

4. The guardrail according to claim 1, characterized in that A first bevel gear is coaxially fixedly connected to the bottom end of the threaded rod, and a second bevel gear is meshed with the first bevel gear. The gear shaft of the second bevel gear passes through the side of the first protective plate of the support rod and is fixedly connected to the rotating handle.

5. The guardrail according to claim 1, characterized in that: A hollow structure is provided on the first protective plate.

6. The guardrail according to claim 1, characterized in that: The bottom of the second protective plate is fixedly connected to the first moving block.

7. The guardrail according to claim 1, characterized in that A second groove is provided on the side of the other support rod opposite to the protective plate, and a first sliding rod is fixedly installed in the second groove along the length direction of the second groove. A second moving block is slidably connected to the outer periphery of the first sliding rod, and the second moving block is fixedly connected to the second protective plate.

8. The guardrail according to claim 1, characterized in that: It also includes an L-shaped mounting plate, one side of the L-shaped mounting plate is slidably connected to the support rod, and the other side of the L-shaped mounting plate is provided with a mounting hole, and the guardrail is installed on the ground by passing bolts through the mounting hole.

9. The guardrail according to claim 1, characterized in that: A fixing rod is arranged in the third groove along its length direction, and the fixing block is sleeved on the outer circumference of the fixing rod.

10. The guardrail according to claim 1, characterized in that: The first groove is provided on a side of the support rod opposite to the first protective plate.

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