Telescopic protective fence

Abstract

The utility model relates to the field of constructional engineering, and provides a telescopic protective fence which comprises a middle connecting body, a plurality of connecting pieces and a plurality of connecting pieces. The end bodies are arranged at the two ends of the middle connecting body and connected with the middle connecting body in an inserted mode, and supporting legs are arranged at the bottoms of the end bodies; the length of the telescopic protective fence can be adjusted by adjusting the inserting length of the end bodies and the middle connecting bodies. According to the protective fence, the length of the protective fence can be adjusted through inserted connection of the end bodies and the middle connecting bodies, and the adaptability of the protective fence to a site is improved. In addition, the length of the protective fence can be adjusted, and the two adjacent sections of the middle connecting body are rotationally connected, so that the occupied space of the protective fence is saved, and the protective fence is convenient to store and transfer.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of construction engineering, in particular to a telescopic guardrail. BACKGROUND

[0002] Construction guardrails are one of the essential safety protection and safety warning facilities in the construction engineering industry, mainly used to block non-construction personnel from entering the construction area. The existing guardrails have the following defects:

[0003] 1. Different installation environments and requirements may require guardrails of different sizes. If the guardrail cannot be extended or shortened, it may not meet the needs of specific scenarios, causing installation difficulties or not fully meeting safety standards. The inability to adjust the length of the guardrail may limit flexible access to the enclosed area. When it is necessary to enter the enclosed area, the size of the guardrail cannot be easily adjusted, increasing the complexity and time cost of the operation. If the guardrail cannot properly cover the construction area or the area to be maintained, it may pose a safety hazard. For example, if the guardrail is too short, it cannot effectively isolate the construction area or the area to be maintained, and personnel may enter the dangerous area, increasing the risk of accidents.

[0004] 2. As a turnover material, the guardrail needs to be frequently replaced and used in different locations. However, the existing guardrails cannot be bent or folded, occupying a large space and being inconvenient to store and transport. CONTENT OF THE INVENTION

[0005] The present application is designed to solve the above problems, providing a telescopic guardrail, which is ingenious in design and simple in structure. The present application can adjust the length of the guardrail through the plug-in connection of the end body and the intermediate connecting body, improving the adaptability of the guardrail to the site. In addition, the length of the guardrail can be adjusted, and the adjacent two sections in the intermediate connecting body are rotationally connected, both of which save the occupied space of the guardrail, making it convenient to store and transport. The technical solution adopted by the present application is as follows:

[0006] A telescopic guardrail, comprising:

[0007] An intermediate connecting body, comprising multiple sections, rotationally connected between adjacent sections; an end body provided at both ends of the intermediate connecting body and plug-in connected with the intermediate connecting body, the bottom of the end body being provided with a supporting leg; by adjusting the plug-in length of the end body and the intermediate connecting body, the length adjustment of the telescopic guardrail can be achieved.

[0008] The length of the guardrail can be adjusted by the plug-in connection of the end body and the intermediate connector, and the adaptability of the guardrail to the site is improved. In addition, the rotation connection between the adjacent two sections of the intermediate connector enables the intermediate connector to be bent or folded. The length adjustment of the guardrail and the rotation connection between the adjacent two sections of the intermediate connector both save the occupied space of the guardrail, so that the guardrail is convenient to store and transport.

[0009] In some embodiments, the intermediate connector is provided with a first socket, and the end body is provided with a second socket. The number of the first sockets is multiple and is arranged at intervals, and / or the number of the second sockets is multiple and is arranged at intervals. By arranging a limiting piece in the corresponding first socket and second socket, the relative movement of the intermediate connector and the end body can be limited.

[0010] By arranging the first socket and the second socket, and inserting or screwing the limiting piece into the corresponding first socket and second socket, the intermediate connector and the end body can be relatively fixed, and the length of the guardrail can be prevented from changing. This relative fixing method is simple and reliable. When it is necessary to adjust the length of the guardrail, the limiting piece can be taken out of the first socket and the second socket.

[0011] In some embodiments, the adjacent two sections of the intermediate connector are connected through a rotating shaft.

[0012] In some embodiments, the telescopic guardrail further comprises a locking assembly for limiting the rotation of the adjacent two sections of the intermediate connector.

[0013] By arranging the locking assembly, the rotation function of the adjacent two sections of the intermediate connector is limited. When the locking assembly is locked, the adjacent two sections of the intermediate connector cannot rotate relative to each other, so that the intermediate connector can maintain the existing shape well and avoid changing the existing shape. When the locking assembly is in the unlocked state, the adjacent two sections of the intermediate connector can rotate, which is convenient for the intermediate connector to be bent or folded.

[0014] In some embodiments, the locking assembly comprises a locking nut, the upper end of the rotating shaft is exposed outside the intermediate connector, and the locking nut is screwed on the upper end of the rotating shaft. By rotating the locking nut, the adjacent two sections of the intermediate connector can be locked or unlocked by the cooperation of the locking nut and the rotating shaft.

[0015] In some embodiments, the locking assembly further comprises a buffer pad arranged on the side of the locking nut close to the intermediate connector.

[0016] By setting the buffer pad, the locking nut and the adjacent two rotating connection parts between the intermediate connecting body can be uniformly transmitted, the locking effect of the locking nut is improved, and the buffer pad can also reduce the collision effect of the locking nut and the adjacent two rotating connection parts in the intermediate connecting body along the length direction of the rotating shaft, so that the damage of the locking nut and the rotating shaft caused by the strong impact of the locking nut during the transportation of the guardrail is avoided.

[0017] In some embodiments, the end body is provided with a sliding groove, and the end of the intermediate connecting body is inserted into the sliding groove.

[0018] In some embodiments, the surface of the part of the intermediate connecting body inserted into the sliding groove is provided with a buffer layer.

[0019] By setting the buffer layer, the impact or collision effect of the end body and the intermediate connecting body when the guardrail encounters a collision can be reduced, the collision energy can be absorbed, the probability of damage of the guardrail can be reduced, and the service life of the guardrail can be prolonged.

[0020] In some embodiments, the telescopic guardrail further comprises a buffer assembly arranged on the part of the intermediate connecting body inserted into the sliding groove, and the buffer assembly is used to reduce the collision between the intermediate connecting body and the sliding groove wall.

[0021] In some embodiments, the buffer assembly comprises an elastic member and a compression rod, opposite two side surfaces of the intermediate connecting body are provided with mounting grooves, the elastic member is arranged in the mounting groove, one end of the compression rod is arranged in the mounting groove and abuts against the elastic member, and the other end of the compression rod protrudes from the side surface of the intermediate connecting body; when the groove wall of the sliding groove abuts against the compression rod, the elastic member is compressed.

[0022] By setting the buffer assembly comprising the elastic member and the compression rod, on the one hand, the impact or collision effect of the end body and the intermediate connecting body when the guardrail encounters a collision can be reduced, the collision energy can be absorbed, the probability of damage of the guardrail can be reduced, and the service life of the guardrail can be prolonged, and on the other hand, the risk of jamming of the intermediate connecting body when sliding in the sliding groove is reduced, the sliding of the intermediate connecting body in the sliding groove is facilitated, and the length adjustment of the guardrail is facilitated.

[0023] The telescopic guardrail provided by the present application has at least one of the following beneficial effects:

[0024] 1. The telescopic guardrail provided by the application can adjust the length of the guardrail through the plug-in connection of the end body and the intermediate connector, thereby improving the adaptability of the guardrail to the site. In addition, the rotational connection between adjacent two sections of the intermediate connector allows the intermediate connector to be bent or folded. The length-adjustable guardrail and the rotational connection between adjacent two sections of the intermediate connector both save the occupied space of the guardrail, making the guardrail easy to store and transport.

[0025] 2. The telescopic guardrail provided by the application can be relatively fixed by inserting or screwing the limiting piece into the corresponding first and second insertion holes, thereby avoiding changes in the length of the guardrail. This relatively fixed mode is simple and reliable. When the length of the guardrail needs to be adjusted, the limiting piece can be removed from the first and second insertion holes.

[0026] 3. The telescopic guardrail provided by the application can limit the rotation function of adjacent two sections of the intermediate connector by setting a locking assembly. When the locking assembly is locked, the adjacent two sections of the intermediate connector cannot rotate relative to each other, so that the intermediate connector can maintain its shape well and avoid changes in the shape. When the locking assembly is in a non-locked state, the adjacent two sections of the intermediate connector can rotate, which facilitates the bending or folding of the intermediate connector.

[0027] 4. The telescopic guardrail provided by the application can uniformly transmit force between the locking nut and the rotational connection part of adjacent two sections of the intermediate connector by setting a buffer pad, thereby improving the locking effect of the locking nut. At the same time, the buffer pad can also reduce the collision effect of the locking nut and the rotational connection part of adjacent two sections of the intermediate connector along the length direction of the rotating shaft, thereby avoiding damage to the locking nut and the thread of the rotating shaft caused by strong impact on the locking nut during the transportation of the guardrail.

[0028] 5. The telescopic guardrail provided by the application can reduce the impact or collision effect of the end body and the intermediate connector when the guardrail encounters a collision, absorb collision energy, reduce the probability of damage to the guardrail, and prolong the service life of the guardrail by setting a buffer layer.

[0029] 6. The telescopic guardrail provided by the application can reduce the impact or collision effect of the end body and the intermediate connector when the guardrail encounters a collision, absorb collision energy, reduce the probability of damage to the guardrail, and prolong the service life of the guardrail by setting a buffer assembly including an elastic piece and a compression rod. On the other hand, it reduces the risk of jamming of the intermediate connector when sliding in the sliding groove, facilitates the sliding of the intermediate connector in the sliding groove, and further facilitates the adjustment of the length of the guardrail. BRIEF DESCRIPTION OF DRAWINGS

[0030] The above features, technical characteristics, advantages and implementation manners of the telescopic guardrail will be further described in a clear and understandable manner in combination with the preferred embodiments and the accompanying drawings.

[0031] Figure 1 is a schematic diagram of the overall structure of the telescopic guardrail of the present application;

[0032] Figure 2 is a schematic diagram of the structure of an embodiment of the end body;

[0033] Figure 3 is a schematic diagram of the cross section of the rotation connection between two adjacent sections of the middle connecting body;

[0034] Figure 4 is a schematic diagram of the structure of an embodiment of the buffer assembly;

[0035] Figure 5 is a schematic diagram of the structure of another embodiment of the buffer assembly.

[0036] Explanation of reference numerals:

[0037] Middle connecting body 1, end body 2, support leg 3, first insertion hole 4, second insertion hole 5, limiting member 6, rotation shaft 7, locking nut 8, buffer pad 9, sliding groove 10, elastic member 11, compression rod 12, mounting groove 13. DETAILED DESCRIPTION

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the specific embodiments of the present application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0039] In order to make the drawing simple, only the parts related to the present application are schematically shown in each drawing, which do not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this text, "one" not only means "only one", but also means "more than one".

[0040] It should be further understood that the term "and / or" used in the specification and the appended claims of the present application means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0041] In this document, unless otherwise indicated and limited, the terms "mount", "connect", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0042] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0043] Reference Figure 1 The present application provides a telescopic guardrail, comprising: a middle connecting body 1, the middle connecting body 1 comprises multiple segments, and the adjacent two segments are rotatably connected; an end body 2, the end body 2 is arranged at both ends of the middle connecting body 1 and is connected with the middle connecting body 1 by insertion, and the bottom of the end body 2 is provided with a supporting leg 3; by adjusting the insertion length of the end body 2 and the middle connecting body 1, the length adjustment of the telescopic guardrail can be realized.

[0044] Specifically, the end body 2 can be provided with a sliding groove 10, and the two ends of the middle connecting body 1 are inserted into the corresponding end body 2 respectively, or the two ends of the middle connecting body 1 are provided with a sliding groove 10, and the end body 2 is inserted into the sliding groove 10 of the middle connecting body 1. The middle connecting body 1 comprises at least two segments.

[0045] It can be understood that by the insertion connection of the end body 2 and the middle connecting body 1, the length of the guardrail can be adjusted, and the adaptability of the guardrail to the site is improved. In addition, the rotatable connection between the adjacent two segments of the middle connecting body 1 makes the middle connecting body 1 can be folded or folded. The length of the guardrail can be adjusted and the rotatable connection between the adjacent two segments of the middle connecting body 1, both of which save the occupied space of the guardrail, so that the guardrail is convenient to store and transport.

[0046] Reference Figure 1 , Figure 2 In one embodiment, a first insertion hole 4 is arranged on the middle connecting body 1, a second insertion hole 5 is arranged on the end body 2, the number of the first insertion hole 4 is multiple and arranged at intervals, and / or the number of the second insertion hole 5 is multiple and arranged at intervals; by arranging a limiting piece 6 in the corresponding first insertion hole 4 and second insertion hole 5, the relative movement of the middle connecting body 1 and the end body 2 can be limited.

[0047] Specifically, the first insertion hole 4 can be provided in multiple numbers and at intervals, and the second insertion hole 5 can be provided in one number, or the second insertion hole 5 can be provided in multiple numbers and at intervals, and the first insertion hole 4 can be provided in one number, or the first insertion hole 4 can be provided in multiple numbers and at intervals, and the second insertion hole 5 can be provided in multiple numbers and at intervals. The limiting member 6 can be a plug rod, a screw, a pin or a bolt, as long as it can be inserted into the first insertion hole 4 and the second insertion hole 5.

[0048] It is easy to understand that by providing the first insertion hole 4 and the second insertion hole 5, and inserting or screwing the limiting member 6 into the corresponding first insertion hole 4 and second insertion hole 5, the intermediate connecting body 1 and the end body 2 can be relatively fixed, and the length of the protective fence can be prevented from changing. This relative fixing method is simple and reliable. When it is necessary to adjust the length of the protective fence, the limiting member 6 can be removed from the first insertion hole 4 and the second insertion hole 5.

[0049] Reference Figure 1 , Figure 3 In one embodiment, the adjacent two sections in the intermediate connecting body 1 are connected through the rotating shaft 7. In other embodiments, the rotating connection mode can also be a hinged connection, for example, a spherical hinge connection.

[0050] In one embodiment, the telescopic protective fence further comprises a locking assembly for limiting the rotation of the adjacent two sections in the intermediate connecting body 1.

[0051] Specifically, referring to Figure 1 , Figure 3 The locking assembly comprises a locking nut 8, the upper end of the rotating shaft 7 is exposed to the intermediate connecting body 1, and the locking nut 8 is screwed onto the upper end of the rotating shaft 7. By rotating the locking nut 8, the adjacent two sections in the intermediate connecting body 1 can be locked or unlocked by the cooperation of the locking nut 8 and the rotating shaft 7. It can be understood that in this embodiment, the adjacent two sections in the intermediate connecting body 1 are respectively provided with rotating shaft 7 mounting holes (not shown in the figure), and the connection mode of the adjacent two sections is the same as that of a flat hinge or a hinge. When the locking nut 8 is rotated and gradually moves towards the intermediate connecting body 1, the cooperation of the locking nut 8 and the rotating shaft 7 can make the adjacent two sections in the intermediate connecting body 1 press each other along the length direction of the rotating shaft 7, thereby increasing the resistance to relative rotation of the adjacent two sections, and realizing the locking function of the locking assembly. It can be understood that the locking nut 8 can be provided on both ends of the rotating shaft 7, or the locking nut 8 can be provided on one end of the rotating shaft 7, and the other end can be T-shaped to prevent the end of the rotating shaft 7 without the locking nut 8 from being separated from the rotating shaft 7 mounting hole.

[0052] It is easy to understand that by setting the locking assembly, the rotation function of the adjacent two sections in the intermediate connecting body 1 is limited, when the locking assembly is locked, the adjacent two sections in the intermediate connecting body 1 cannot rotate relative to each other, so that the intermediate connecting body 1 can well maintain the existing shape and avoid the existing shape from changing, when the locking assembly is in the unlocked state, the adjacent two sections in the intermediate connecting body 1 can rotate, which is convenient for the intermediate connecting body 1 to be bent or folded.

[0053] Reference Figure 1 , Figure 3 In one embodiment, the locking assembly also includes a buffer pad 9 arranged on the side of the locking nut 8 close to the intermediate connecting body 1. The buffer pad 9 can be a rubber pad, a plastic pad or other pad with elasticity and softness. By arranging the buffer pad 9, uniform force transmission between the locking nut 8 and the rotating connection part of the adjacent two sections in the intermediate connecting body 1 can be achieved, the locking effect of the locking nut 8 is improved, and the buffer pad 9 can also reduce the collision effect of the locking nut 8 and the rotating connection part of the adjacent two sections in the intermediate connecting body 1 along the length direction of the rotating shaft 7, so as to avoid damage to the thread of the locking nut 8 and the rotating shaft 7 caused by strong impact on the locking nut 8 during the transportation of the guardrail.

[0054] In one embodiment, the surface of the part of the intermediate connecting body 1 that can be inserted into the sliding groove 10 is provided with a buffer layer (not shown in the figure). By arranging the buffer layer, the impact or collision effect of the end body 2 and the intermediate connecting body 1 when the guardrail encounters a collision can be reduced, the collision energy can be absorbed, the probability of damage to the guardrail can be reduced, and the service life of the guardrail can be prolonged.

[0055] In one embodiment, the telescopic guardrail also includes a buffer assembly arranged on the part of the intermediate connecting body 1 that can be inserted into the sliding groove 10, and the buffer assembly is used to reduce the collision between the intermediate connecting body 1 and the groove wall of the sliding groove 10.

[0056] Specifically, referring to Figure 4 , the buffer assembly includes an elastic member 11 and a compression rod 12, the opposite two side surfaces of the intermediate connecting body 1 are each provided with a mounting groove 13, the elastic member 11 is arranged in the mounting groove 13, one end of the compression rod 12 is arranged in the mounting groove 13 and abuts against the elastic member 11, and the other end of the compression rod 12 protrudes from the side surface of the intermediate connecting body 1; when the groove wall of the sliding groove 10 abuts against the compression rod 12, the elastic member 11 is compressed. Specifically, the end of the compression rod 12 abutting against the elastic member 11 is T-shaped, the T-shaped end of the compression rod 12 is clamped in the mounting groove 13 and cannot be separated from the mounting groove 13. The end of the compression rod 12 protruding from the intermediate connecting body 1 is preferably a circular arc surface, so that the intermediate connecting body 1 can avoid being stuck when moving in the sliding groove 10. The elastic member 11 can be a spring, a spring sheet or other component with deformation recovery capability.

[0057] Reference Figure 5In other embodiments, the mounting slots 13 arranged on the two opposite sides of the intermediate connector 1 are through, that is, the compression rods 12 on the two sides of the intermediate connector 1 can share one elastic member 11.

[0058] It should be noted that by arranging the buffer assembly including the elastic member 11 and the compression rod 12, on the one hand, the impact or collision effect of the end body 2 on the intermediate connector 1 when the guardrail encounters a collision can be reduced, the collision energy can be absorbed, the probability of damage to the guardrail can be reduced, the service life of the guardrail can be prolonged, and on the other hand, the risk of jamming of the intermediate connector 1 when sliding in the sliding groove 10 can be reduced, the sliding of the intermediate connector 1 in the sliding groove 10 is facilitated, and then the length adjustment of the guardrail is facilitated.

[0059] It should be noted that the above embodiments can be freely combined as needed. The above is only a preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the art, several improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A retractable barrier, characterised in that, The utility model relates to a telescopic guardrail, which comprises an intermediate connector, end bodies and a locking assembly. The intermediate connector comprises multiple segments, and adjacent two segments are connected through a rotating shaft. The end bodies are arranged at two ends of the intermediate connector and are connected to the intermediate connector through a plug-in connection. The length of the telescopic guardrail can be adjusted by adjusting the plug-in length of the end bodies and the intermediate connector.

2. A telescoping guardrail according to claim 1, wherein, The intermediate connector is provided with a plurality of first insertion holes, and the end bodies are provided with a plurality of second insertion holes.

3. A telescoping guardrail according to claim 1, wherein, The first insertion holes and the second insertion holes are arranged in pairs.

4. A telescoping guardrail according to claim 3, wherein, The relative movement between the intermediate connector and the end bodies can be limited by arranging a limiting member in the corresponding first insertion hole and second insertion hole.

5. A telescoping guardrail according to claim 4, wherein, The adjacent two segments of the intermediate connector are connected through a rotating shaft.

6. A telescoping guardrail according to claim 5, wherein, The locking assembly is used to limit the rotation of the adjacent two segments of the intermediate connector.

7. A telescoping guardrail according to any one of claims 1-6, wherein, The locking assembly comprises a locking nut.

8. A telescoping guardrail according to claim 7, wherein, The upper end of the rotating shaft is exposed to the intermediate connector.

9. A telescoping guardrail according to claim 7, wherein, The locking nut is screwed on the upper end of the rotating shaft.

10. A telescoping guardrail according to claim 9, wherein, The adjacent two segments of the intermediate connector can be locked or unlocked by rotating the locking nut. The locking assembly further comprises a buffer pad. The buffer pad is arranged on the side of the locking nut close to the intermediate connector. The end bodies are provided with a sliding groove. The end of the intermediate connector is inserted into the sliding groove. The surface of the part of the intermediate connector inserted into the sliding groove is provided with a buffer layer. The telescopic guardrail further comprises a buffer assembly. The buffer assembly is arranged on the part of the intermediate connector inserted into the sliding groove. The buffer assembly is used to reduce the collision between the intermediate connector and the sliding groove. The buffer assembly comprises an elastic member and a compression rod. The opposite two side surfaces of the intermediate connector are provided with mounting grooves. The elastic member is arranged in the mounting groove. One end of the compression rod is arranged in the mounting groove and abuts against the elastic member. The other end of the compression rod protrudes from the side surface of the intermediate connector. When the sliding groove abuts against the compression rod, the elastic member is compressed.

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