Construction guardrail capable of achieving corner stretching and retracting

Abstract

The construction guardrail comprises a first supporting assembly and a second supporting assembly which are oppositely arranged, storage frames located on the first supporting assembly and the second supporting assembly are connected through a telescopic net, and the storage frames can be rotationally installed on the first supporting assembly or the second supporting assembly in the horizontal direction. The first supporting assembly and the second supporting assembly are each provided with a plurality of height adjusting assemblies capable of adjusting the distance between the lower end face of the first supporting assembly and the ground, and when the two construction guardrails are in butt joint, a connecting assembly used for detachably connecting the first supporting assembly and the second supporting assembly together is arranged between the first supporting assembly and the second supporting assembly which are in butt joint. The length of the construction guardrail and the position angles among the first supporting assembly, the telescopic net and the second supporting assembly can be flexibly adjusted, the distance between the lower end face of each supporting assembly and the ground can be flexibly adjusted according to the concave-convex condition of the ground, and therefore the stability of the supporting assemblies during placement is guaranteed. When two construction guardrails are connected in a butt joint mode, construction operation is simple, and convenience and high efficiency of guardrail construction or disassembly are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of construction protection equipment technology, specifically to a corner-extending construction guardrail. Background Technology

[0002] Construction refers to the production activities during the implementation phase of an engineering project. It is the process of building various types of buildings, or the process of transforming the lines on design drawings into a physical building at a designated location. Construction typically includes foundation construction, main structure construction, roofing construction, and decoration construction. The site where construction work takes place is called the "construction site" or "building site." Generally, during construction, protective fences are used to separate the construction site from the outside world to prevent unauthorized personnel from entering.

[0003] Conventional guardrails are planar frame structures, made of iron pipes through processes such as bending, welding, grinding, polishing, painting, and film application. However, this type of guardrail is not entirely suitable for construction sites. Many construction sites have uneven terrain, steep slopes, or steps that are not on the same horizontal plane, making planar frame guardrails unsuitable. Multiple guardrails need to be combined to achieve a protective effect. Furthermore, since the length of planar frame guardrails is fixed, when facing a large area to be protected, a large number of guardrails need to be combined to achieve comprehensive protection. The complex connection and installation of multiple guardrails in combination severely restricts the overall construction efficiency. Therefore, this utility model proposes a corner-adjustable and retractable construction guardrail to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a corner-extending construction guardrail. Support component one and support component two are connected by a telescopic net, allowing for flexible adjustment of the guardrail's length according to the usage scenario. The storage frame on support component one and / or support component two can rotate horizontally, enabling flexible adjustment of the position and angle of support component one, the telescopic net, and support component two according to the usage scenario, thus improving the flexibility of guardrail placement during construction. Height adjustment components on support component one and support component two allow for flexible adjustment of the distance between the lower end of the support component and the ground according to the unevenness of the ground, ensuring the stability of each support component during placement. When two corner-extending construction guardrails are connected end-to-end, the opposing support components one and two are detachably connected by a connecting component, simplifying construction and ensuring convenient and efficient guardrail construction or disassembly. When facing multiple protective surfaces, several corner-extending construction guardrails of this invention can be connected end-to-end and their angles adjusted to meet the requirements, eliminating the need to purchase multiple guardrails separately, thus reducing construction costs and achieving good economic benefits.

[0005] To achieve the above objectives, the technical solution of this utility model is to design a corner-extending construction guardrail, including a support component one and a support component two arranged opposite to each other. The support component one and support component two have storage frames extending in opposite directions between them. The storage frames on support component one and support component two are connected by a telescopic net that can be folded or unfolded in a vertical plane. The storage frame on support component one can be rotatably mounted on support component one in the horizontal direction, and / or the storage frame on support component two can be rotatably mounted on support component two in the horizontal direction. Both support component one and support component two are provided with several sets of height-adjusting components that can adjust the distance between their lower end faces and the ground. When two corner-extending construction guardrails are connected, a connecting component is provided between support component one on one corner-extending construction guardrail and support component two on the other corner-extending construction guardrail for detachably connecting the two.

[0006] This utility model discloses a corner-extending construction guardrail. Support component one and support component two are connected by a telescopic net, allowing for flexible adjustment of the guardrail's length according to the usage scenario. The storage frame on support component one and / or support component two can rotate horizontally, enabling flexible adjustment of the position and angle of support component one, the telescopic net, and support component two according to the usage scenario, thus improving the flexibility of guardrail placement during construction. Height adjustment components on support component one and support component two allow for flexible adjustment of the distance between the lower end of the support component and the ground according to the unevenness of the ground, ensuring the stability of each support component when placed. When two corner-extending construction guardrails are connected end-to-end, the opposing support components one and two are detachably connected together by a connecting component, simplifying construction operations and ensuring convenient and efficient guardrail construction or disassembly. When facing multiple protective surfaces, several corner-extending construction guardrails of this utility model can be connected end-to-end and their angles adjusted to meet the usage requirements, eliminating the need to purchase multiple guardrails separately, thus reducing construction costs and achieving good economic benefits.

[0007] The preferred technical solution is that both the lower end of the first support component and the lower end of the second support component have support foot assemblies. Each support foot assembly includes a horizontal base plate. Several universal wheels are mounted on the lower surface of the horizontal base plate. Several threaded holes penetrating the plate are vertically formed on the horizontal base plate, and a screw rod is screwed into each threaded hole. The upper end of the screw rod extends beyond the upper surface of the horizontal base plate and is fixed with a knob. The lower end of the screw rod extends beyond the lower surface of the horizontal base plate and is fixed with a support foot. The corresponding threaded holes, screw rod, knob, and support foot on the horizontal base plate constitute a set of height adjustment components. The support foot assembly has a clever and reasonable structural design, good mobility, and ensures the convenience of adjusting the length and angle of the rotatable and retractable construction guardrail of this utility model. The height adjustment component has a reasonable structural design, ensuring the convenience of adjusting the distance between the lower surface of the support component and the ground.

[0008] A further preferred technical solution is that a protrusion facing away from the second support component is provided on a horizontal base plate located at the lower end of the support component, and the protrusion has a mounting hole that passes through its front and rear end faces.

[0009] The horizontal base plate located at the lower end of the support component 2 has two lugs facing away from the support component 1, and the two lugs and the outer side of the horizontal base plate form a groove that matches the protrusion. The two lugs are provided with mounting holes 2 that pass through the front and rear end faces, and bolt assemblies are inserted into the mounting holes 2 on the two lugs.

[0010] When two of the aforementioned retractable corner-rotating construction guardrails are connected, a protrusion on one of the guardrails is fitted into a groove on the other guardrail. The protrusion and two lugs are hinged together by bolt assemblies passing through mounting holes one and two. The two lugs, groove, bolt assembly, and protrusion constitute the connecting assembly. The connecting assembly has a simple structural design, high feasibility in manufacturing and implementation, and is easy to operate, helping to ensure convenient and efficient construction operations when using the retractable corner-rotating construction guardrail of this invention.

[0011] A further preferred technical solution is that a mounting base is fixedly provided in the middle of the upper surface of the horizontal base plate on the support component one. An upwardly extending column is rotatably mounted inside the mounting base one. The upper and lower ends of the column one are respectively provided with support rods fixedly connected to the corresponding storage frame. A locking component is also provided between the mounting base one and the lower end of the column one. The locking component has a first state and a second state. In the first state, the column one can rotate in the horizontal direction. In the second state, the column one and the mounting base one are fixedly locked together.

[0012] A mounting base two is fixedly installed at the center of the upper end surface of the horizontal base plate on the second support component. An upwardly extending column two is fixedly installed inside the mounting base two. Each of the upper and lower ends of the column two has a support rod that is fixedly connected to a corresponding storage frame. The ingenious and reasonable structural design of the first and second support components ensures the smooth fabrication and implementation of this utility model's corner-adjustable and retractable construction guardrail.

[0013] A further preferred technical solution is that the lower end of the column is rotatably mounted on the bottom of the mounting base one via a bearing seat. The outer circumferential side of the lower end of the column has several radially spaced insertion holes located on the same circumference. A through hole is formed on one vertical sidewall of the mounting base one, and a pin passes through the through hole. The outer end of the pin has a knob two with an outer diameter greater than the inner diameter of the through hole. The radially inserted holes, the pin, the knob two, and the through hole constitute the locking assembly. In the first state, the inner end of the pin in the locking assembly is retracted from the radially inserted hole. In the second state, the inner end of the pin in the locking assembly is inserted into one of the radially inserted holes. The locking assembly has a clever and reasonable structural design, good operability, and ensures the convenience of adjusting the position and angle of the support assembly two and the telescopic net relative to the support assembly one.

[0014] A further preferred technical solution includes a signal transmitter on the top of one of the storage frames and a corresponding signal receiver on the top of the other storage frame. The signal receiver is equipped with an external warning light connected to the control system signal. When someone climbs over the guardrail, the signal received by the signal receiver is interrupted, triggering the warning light to illuminate. This allows management personnel to detect the incident promptly, preventing accidents and improving safety.

[0015] A further preferred technical solution includes an infrared transmitter inside the signal transmitter base and an infrared receiver inside the signal receiver base corresponding to the infrared transmitter. Both the infrared transmitter and receiver are connected to the control system signal. The signal transmitter base and receiver base are widely applicable and readily available commercially, ensuring the smooth fabrication and implementation of this utility model's corner-adjustable and retractable construction guardrail.

[0016] A further preferred technical solution includes solar panels mounted on the top of both the signal transmitter and receiver, and batteries electrically connected to the corresponding solar panels located inside both the transmitter and receiver. The electrical energy generated by the solar panels is stored in the batteries, which helps reduce mains power consumption and meets energy conservation and emission reduction requirements.

[0017] A further preferred technical solution is that protective covers are provided on the top of column one and column two respectively.

[0018] The advantages and beneficial effects of this utility model are as follows:

[0019] 1. This utility model discloses a corner-extending construction guardrail. Support component one and support component two are connected by a telescopic net, allowing for flexible adjustment of the guardrail's length according to the usage scenario. The storage frame on support component one and / or support component two can rotate horizontally, thus allowing for flexible adjustment of the position and angle of support component one, the telescopic net, and support component two according to the usage scenario, improving the flexibility of guardrail placement during construction. Height adjustment components on support component one and support component two allow for flexible adjustment of the distance between the lower end of the support component and the ground according to the unevenness of the ground, ensuring the stability of each support component during placement. When two corner-extending construction guardrails are connected end-to-end, the opposing support components one and two are detachably connected by a connecting component, simplifying construction and ensuring convenient and efficient guardrail construction or disassembly. When facing multiple protective surfaces, several corner-extending construction guardrails of this utility model can be connected end-to-end and their angles adjusted to meet the usage requirements, eliminating the need to purchase multiple guardrails separately, thus reducing construction costs and achieving good economic benefits.

[0020] 2. The supporting foot plate component has a clever and reasonable structural design and good mobility, ensuring the convenience of adjusting the length and angle of the construction guardrail that can be rotated and extended. The height adjustment component has a reasonable structural design, ensuring the convenience of adjusting the distance between the lower end of the supporting component and the ground.

[0021] 3. One of the storage boxes is equipped with a signal transmitter on its top, and the other storage box is equipped with a corresponding signal receiver on its top. The signal receiver is externally equipped with a warning light connected to the control system signal. When someone climbs over the guardrail, the signal received by the signal receiver will be interrupted, triggering the warning light to illuminate, allowing management personnel to detect the incident promptly, prevent accidents, and improve safety. Attached Figure Description

[0022] Figure 1 This is a front view of a corner-adjustable and retractable construction guardrail according to this utility model;

[0023] Figure 2 This is the left view of the supporting foot assembly;

[0024] Figure 3 This is the main view of supporting component one (longitudinal section view of mounting base one);

[0025] Figure 4 This is a longitudinal sectional view of the signal transmitter.

[0026] Figure 5 This is a longitudinal sectional view of the signal receiver.

[0027] In the diagram: 1. Column 1; 2. Column 2; 3. Support foot assembly; 4. Storage frame; 5. Telescopic net; 6. Signal transmitter base; 7. Signal receiver base; 8. Locking assembly; 3-1. Horizontal base plate; 3-2. Casters; 3-3. Screw 1; 3-4. Knob 1; 3-5. Support foot; 3-6. Ear block; 3-7. Groove; 3-8. Bolt assembly; 3-9. Protrusion; 6-1. Infrared transmitter; 7-1. Infrared receiver; 7-2. Warning light; 8-1. Radial insertion hole; 8-2. Pin; 8-3. Knob 2; A. Support rod; B. Protective cover; C. Mounting base 1; D. Mounting base 2; E. Solar panel; F. Battery; I. Support assembly 1; II. Support assembly 2. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0029] Example

[0030] like Figures 1-5 As shown, this utility model is a corner-extending construction guardrail, including a support component I and a support component II arranged opposite to each other. The support components I and II have storage frames 4 extending in opposite directions. The storage frames 4 on support component I and II are connected by a telescopic net 5 that can be folded or unfolded in a vertical plane. The storage frames 4 on support component I and II can be rotatably mounted on support component I in the horizontal direction, and / or the storage frames 4 on support component II can be rotatably mounted on support component II in the horizontal direction. Both support components I and II are provided with several sets of height adjustment components that can adjust the distance between their lower surfaces and the ground. When two corner-extending construction guardrails are connected, a connecting component is provided between support component I on one corner-extending construction guardrail and support component II on the other corner-extending construction guardrail for detachably connecting the two.

[0031] Preferably, both the lower ends of support component I and support component II have support foot assembly 3. The support foot assembly 3 includes a horizontal base plate 3-1. Several universal wheels 3-2 are installed on the lower end face of the horizontal base plate 3-1. Several threaded holes penetrating the plate body are vertically opened on the horizontal base plate 3-1, and a screw 3-3 is screwed into the threaded holes. The upper end of the screw 3-3 extends out of the upper end face of the horizontal base plate 3-1 and is fixed with a knob 3-4. The lower end of the screw 3-3 extends out of the lower end face of the horizontal base plate 3-1 and is fixed with a support foot 3-5. The corresponding threaded holes, screw 3-3, knob 3-4 and support foot 3-5 on the horizontal base plate 3-1 constitute a set of height adjustment components.

[0032] More preferably, the horizontal base plate 3-1 located at the lower end of the support component I has a protrusion 3-9 facing away from the support component II, and the protrusion 3-9 has a mounting hole 1 penetrating its front and rear end faces;

[0033] The horizontal base plate 3-1 located at the lower end of the support component II has two lugs 3-6 facing away from the support component I. The two lugs 3-6 and the outer side of the horizontal base plate 3-1 form a groove 3-7 that matches the protrusion 3-9. The two lugs 3-6 are respectively provided with mounting holes II that pass through the front and rear end faces. Bolt components 3-8 are inserted into the mounting holes II on the two lugs 3-6.

[0034] When two of the aforementioned retractable construction guardrails are connected, the protrusion 3-9 on one of the retractable construction guardrails is embedded in the groove 3-7 on the other retractable construction guardrail. The protrusion 3-9 and the two lugs 3-6 are hinged together by bolt assemblies 3-8 that pass through the first and second mounting holes. The two lugs 3-6, the groove 3-7, the bolt assembly 3-8, and the protrusion 3-9 constitute the connecting assembly.

[0035] More preferably, a mounting base C is fixedly provided in the middle of the upper end face of the horizontal base plate 3-1 on the support component I. An upwardly extending column 1 is rotatably installed inside the mounting base C. The upper and lower ends of the column 1 are respectively provided with support rods A that are fixedly connected to the corresponding storage frame 4. A locking component 8 is also provided between the lower ends of the mounting base C and the column 1. The locking component 8 has a first state and a second state. In the first state, the column 1 can rotate in the horizontal direction. In the second state, the column 1 and the mounting base C are fixedly locked together.

[0036] The upper part of the horizontal base plate 3-1 on the support component II is fixedly provided with a mounting base II D. The mounting base II D is fixedly provided with an upwardly extending column II 2. The upper and lower ends of the column II 2 are respectively provided with support rods A that are fixedly connected to the corresponding storage frame 4.

[0037] More preferably, the lower end of the column 1 is rotatably mounted on the bottom of the mounting base C via a bearing seat. The outer circumferential side of the lower end of the column 1 is provided with a plurality of radial insertion holes 8-1 located on the same circumference. A through hole 2 is provided on one vertical side wall of the mounting base C. A pin 8-2 passes through the through hole 2. The outer end of the pin 8-2 has a knob 8-3 with an outer diameter greater than the inner diameter of the through hole 2. The radial insertion holes 8-1, the pin 8-2, the knob 8-3, and the through hole 2 constitute the locking assembly 8. In the first state, the inner end of the pin 8-2 is withdrawn from the radial insertion hole 8-1. In the second state, the inner end of the pin 8-2 is inserted into one of the radial insertion holes 8-1.

[0038] More preferably, one of the storage boxes 4 is provided with a signal transmitter 6 on its top, and the other storage box 4 is provided with a corresponding signal receiver 7 on its top. The signal receiver 7 is provided with a warning light 7-2 connected to the control system signal.

[0039] More preferably, the signal transmitting base 6 is provided with an infrared transmitter 6-1 inside, and the signal receiving base 7 is provided with an infrared receiver 7-1 corresponding to the infrared transmitter 6-1 inside. Both the infrared transmitter 6-1 and the infrared receiver 7-1 are connected to the control system signal.

[0040] More preferably, the top of the signal transmitter 6 and the top of the signal receiver 7 are respectively provided with solar panels E, and the inside of the signal transmitter 6 and the inside of the signal receiver 7 are respectively provided with batteries F electrically connected to the corresponding solar panels E.

[0041] More preferably, the top of column 1 and the top of column 2 are respectively provided with protective covers B.

[0042] The working principle of this utility model of a corner-adjustable and telescopic construction guardrail is as follows:

[0043] In use, several retractable construction guardrails are placed sequentially at predetermined length intervals at the designated locations to be protected. The telescopic net 5 on the first retractable construction guardrail is unfolded. Then, the protrusion 3-9 on the support component I of the second retractable construction guardrail is inserted into the groove 3-7 on the support component II of the first retractable construction guardrail. The two lugs 3-6 and the protrusion 3-9 are then connected together using bolts 3-8, thus connecting two adjacent retractable construction guardrails end to end using a connecting component. The subsequent retractable construction guardrails are connected sequentially to form a complete guardrail structure. Finally, each support foot component 3 is adjusted to adapt to different bottom heights. Specifically, the knob 3-4 is held and rotated to cause the screw 3-3 to move the support foot 3-5 downwards until it is pressed against the corresponding bottom surface.

[0044] When it is necessary to adjust the angle between the telescopic net 5 and the support component II, hold the knob 8-3 on the adjustment support component I and pull the pin 8-2 out of the corresponding radial insertion hole 8-1. Then rotate the column I to make the telescopic net 5 and the support component II at a suitable angle. Then hold the knob 8-3 again and re-insert the pin 8-2 into the corresponding radial insertion hole 8-1 to complete the angle adjustment of the telescopic net 5 and the support component II relative to the support component I.

[0045] This utility model discloses a corner-extending construction guardrail. Support component one and support component two are connected by a telescopic net, allowing for flexible adjustment of the guardrail's length according to the usage scenario. The storage frame on support component one and / or support component two can rotate horizontally, enabling flexible adjustment of the position and angle of support component one, the telescopic net, and support component two according to the usage scenario, thus improving the flexibility of guardrail placement during construction. Height adjustment components on support component one and support component two allow for flexible adjustment of the distance between the lower end of the support component and the ground according to the unevenness of the ground, ensuring the stability of each support component when placed. When two corner-extending construction guardrails are connected end-to-end, the opposing support components one and two are detachably connected together by a connecting component, simplifying construction operations and ensuring convenient and efficient guardrail construction or disassembly. When facing multiple protective surfaces, several corner-extending construction guardrails of this utility model can be connected end-to-end and their angles adjusted to meet the usage requirements, eliminating the need to purchase multiple guardrails separately, thus reducing construction costs and achieving good economic benefits.

[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A corner-adjustable and telescopic construction guardrail, characterized in that, The system includes opposing support components 1 (Ⅰ) and 2 (Ⅱ), with storage frames (4) extending in opposite directions between them. The storage frames (4) on support component 1 (Ⅰ) and support component 2 (Ⅱ) are connected by a telescopic mesh (5) capable of folding or unfolding in a vertical plane. The storage frame (4) on support component 1 (Ⅰ) is rotatably mounted on support component 1 (Ⅰ) and / or on support component 2 (Ⅱ). The storage box (4) on the second support component (II) can be rotatably mounted on the second support component (II) in the horizontal direction. Both the first support component (I) and the second support component (II) are provided with several sets of height adjustment components that can adjust the distance between their lower end face and the ground. When the two corner-extending construction guardrails are connected, a connecting component is provided between the first support component (I) on one corner-extending construction guardrail and the second support component (II) on the other corner-extending construction guardrail to detachably connect the two together.

2. The corner-adjustable and telescopic construction guardrail as described in claim 1, characterized in that, Both the lower ends of the support component I (Ⅰ) and the lower ends of the support component II (Ⅱ) have support foot assemblies (3). The support foot assembly (3) includes a horizontal base plate (3-1). Several universal wheels (3-2) are installed on the lower end face of the horizontal base plate (3-1). Several threaded holes penetrating the plate body are vertically opened on the horizontal base plate (3-1), and a screw rod (3-3) is screwed into the threaded holes. The upper end of the screw rod (3-3) extends out of the upper end face of the horizontal base plate (3-1) and is fixed with a knob (3-4). The lower end of the screw rod (3-3) extends out of the lower end face of the horizontal base plate (3-1) and is fixed with a support foot (3-5). The corresponding threaded holes, screw rod (3-3), knob (3-4) and support foot (3-5) on the horizontal base plate (3-1) constitute a set of height adjustment components.

3. The corner-rotating and telescopic construction guardrail as described in claim 2, characterized in that, The horizontal base plate (3-1) located at the lower end of the support component one (Ⅰ) has a protrusion (3-9) facing away from the support component two (Ⅱ), and the protrusion (3-9) has a mounting hole through its front and rear end faces; The horizontal base plate (3-1) located at the lower end of the support component II has two lugs (3-6) facing away from the support component I (I), and the two lugs (3-6) and the outer side of the horizontal base plate (3-1) form a groove (3-7) that is adapted to the protrusion (3-9). The two lugs (3-6) are respectively provided with mounting holes II that pass through the front and rear end faces. The mounting holes II on the two lugs (3-6) are connected to bolt assemblies (3-8). When two of the aforementioned retractable construction guardrails are connected, a protrusion (3-9) on one of the retractable construction guardrails is embedded in a groove (3-7) on the other retractable construction guardrail. The protrusion (3-9) and two lugs (3-6) are hinged together by bolt assemblies (3-8) that pass through mounting holes one and two. The two lugs (3-6), groove (3-7), bolt assembly (3-8), and protrusion (3-9) that cooperate with each other constitute the aforementioned connecting assembly.

4. The corner-rotating and telescopic construction guardrail as described in claim 3, characterized in that, A mounting base (C) is fixedly provided in the middle of the upper surface of the horizontal base plate (3-1) on the support component (Ⅰ). An upwardly extending column (1) is rotatably installed inside the mounting base (C). The upper and lower ends of the column (1) are respectively provided with support rods (A) that are fixedly connected to the corresponding storage frame (4). A locking component (8) is also provided between the lower ends of the mounting base (C) and the column (1). The locking component (8) has a first state and a second state. In the first state, the column (1) can rotate in the horizontal direction. In the second state, the column (1) and the mounting base (C) are fixedly locked together. The upper end face of the horizontal base plate (3-1) on the support component 2 (II) is fixedly provided with the mounting base 2 (D), and the mounting base 2 (D) is fixedly provided with the column 2 (2) extending upward. The upper and lower ends of the column 2 (2) are respectively provided with the support rod (A) fixedly connected to the corresponding storage frame (4).

5. The corner-rotating and telescopic construction guardrail as described in claim 4, characterized in that, The lower end of the column (1) is rotatably mounted on the bottom of the mounting base (C) via a bearing seat. The outer circumferential side of the lower end of the column (1) is provided with a plurality of radial insertion holes (8-1) located on the same circumference. A through hole is provided on one vertical side wall of the mounting base (C). A pin (8-2) is inserted through the through hole. The outer end of the pin (8-2) has a knob (8-3) with an outer diameter greater than the inner diameter of the through hole. The radial insertion holes (8-1), the pin (8-2), the knob (8-3) and the through hole constitute the locking assembly (8). In the first state, the inner end of the pin (8-2) of the locking assembly (8) is withdrawn from the radial insertion hole (8-1). In the second state, the inner end of the pin (8-2) of the locking assembly (8) is inserted into one of the radial insertion holes (8-1).

6. The corner-rotating and telescopic construction guardrail as described in claim 5, characterized in that, One of the storage boxes (4) is provided with a signal transmitter (6) on its top, and the other storage box (4) is provided with a corresponding signal receiver (7) on its top. The signal receiver (7) is provided with a warning light (7-2) connected to the control system signal.

7. The corner-adjustable and telescopic construction guardrail as described in claim 6, characterized in that, The signal transmitter (6) is equipped with an infrared transmitter (6-1) inside, and the signal receiver (7) is equipped with an infrared receiver (7-1) corresponding to the infrared transmitter (6-1) inside. Both the infrared transmitter (6-1) and the infrared receiver (7-1) are connected to the control system signal.

8. The corner-adjustable and telescopic construction guardrail as described in claim 7, characterized in that, The top of the signal transmitter (6) and the top of the signal receiver (7) are respectively provided with solar panels (E), and the inside of the signal transmitter (6) and the inside of the signal receiver (7) are respectively provided with batteries (F) electrically connected to the corresponding solar panels (E).

9. The corner-adjustable and telescopic construction guardrail as described in claim 8, characterized in that, The top of column one (1) and the top of column two (2) are respectively provided with protective covers (B).

Images