Enclosure for hole construction

Abstract

The utility model discloses an enclosure for hole construction, which comprises at least two groups of first enclosure components and at least two groups of second enclosure components, and the first enclosure components and the second enclosure components are arranged in a crossed manner and are sequentially connected to form a closed polygonal structure; each first fence assembly comprises a telescopic structure, and each telescopic structure is connected between every two adjacent second fence assemblies and is configured to be telescopic so as to adjust the distance between every two adjacent second fence assemblies; each telescopic structure is provided with a locking structure, and each locking structure is configured to be capable of locking the corresponding telescopic structure when adjustment of the telescopic structures is completed. The first fence assembly and the second fence assembly are pre-assembled, the structure is simple, disassembly and assembly are convenient, the construction efficiency is high, the telescopic structure and the locking structure can be adjusted and locked according to the actual hole size, the adaptability and flexibility of the enclosure are improved, transportation and storage are convenient, stability and durability are achieved, the construction cost is low, and the safety of the construction environment is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, especially a kind of enclosure for hole construction. BACKGROUND

[0002] In building construction engineering, it is usually related to the hole of reserved passage, feeding port, floor opening, elevator shaft and pipe shaft, which provides necessary passage for the transportation of building materials, the flow of personnel and the entry and exit of equipment. However, the hole brings convenience to construction at the same time, and also becomes a potential safety hazard in the construction site. Due to the complexity and variability of the construction site environment, if these holes are not properly fenced and protected, it is easy to cause serious safety accidents such as personnel falling, machinery or goods falling, which poses a serious threat to the safety of construction personnel. Therefore, taking effective hole fencing and protection measures to ensure the safety of hole operation has become an important problem to be solved in building construction.

[0003] Traditional hole protection measures usually use multiple fixed size and structure fences (such as iron horses) for on-site assembly. Although it can achieve the purpose of hole fencing to a certain extent, it still has defects. First of all, the traditional fence assembly process is complicated, which needs to consume a lot of manpower and time, and the installation speed is slow. It is not convenient to install and disassemble, and it is difficult to meet the needs of rapid changes in the construction site. Secondly, due to the poor stability and firmness of the traditional fence, it is easy to be affected by external force and deformed during construction, resulting in poor enclosure effect. It cannot effectively warn the operating personnel to pay attention to safety, and it is difficult to ensure the firmness and shielding performance of the enclosure structure, with low safety. In addition, the traditional fence is not convenient to transport and store, which increases the construction cost. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of enclosure for hole construction to solve the problem that the traditional hole protection measures in prior art use fixed size and structure fence on-site assembly, process is complicated, installation and disassembly are inconvenient, stability and firmness are poor, enclosure effect is poor and safety is low, and it is inconvenient to transport and store.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of enclosure for hole construction, comprising:

[0007] At least two groups of first fence assemblies and at least two groups of second fence assemblies, each of the first fence assemblies and each of the second fence assemblies are arranged in cross and connected in sequence to form a closed polygonal structure.

[0008] Each of the first enclosing assemblies comprises a telescopic structure, each of the telescopic structures is connected between two adjacent second enclosing assemblies, and is configured to be telescopic to adjust the distance between the two adjacent second enclosing assemblies.

[0009] Each of the telescopic structures is provided with a locking structure, and each of the locking structures is configured to lock each telescopic structure when the telescopic structure is adjusted.

[0010] According to the above technical means, by adopting at least two groups of first enclosing assemblies and at least two groups of second enclosing assemblies arranged in cross and connected in sequence to form a closed polygonal structure in advance, the polygonal structure can be directly enclosed on the construction opening during construction, and the enclosing effect is good, the structure is simple, the disassembly and assembly are convenient, the construction efficiency is high, and the distance between the two adjacent second enclosing assemblies is adjusted through the telescopic structure, so that the size of the polygonal structure can be adjusted according to different opening sizes and actual needs, the adaptability and flexibility of the construction enclosing are improved, and when not in use, the telescopic structure can be shrunk to reduce the occupied area, facilitating transportation and storage. In addition, under the action of the locking structure, when the telescopic structure is telescoped to the preset position, the locking structure locks the telescopic structure, so that the telescopic structure cannot be telescoped, thereby improving the stability and firmness of the polygonal structure, and the construction cost is low, and the safety of the construction environment is ensured.

[0011] Further, each of the second enclosing assemblies comprises two columns and a scissor-type guardrail, the two columns are arranged in parallel, the scissor-type guardrail is connected between the two columns, and the scissor-type guardrail is configured to be foldable and / or stretchable to adjust the distance between the two columns; each of the telescopic structures is connected between two adjacent columns.

[0012] According to the above technical means, by adopting the scissor-type guardrail to connect two parallel columns to form a shielding part, the enclosing effect is good and the stability is good, and the scissor-type guardrail has the functions of folding and / or stretching, so that the structure is simple, the flexibility is good, the adjustment is convenient, and the adaptability and flexibility of the entire enclosing structure are further enhanced, so that the enclosing can not only quickly respond to the requirements of openings of different sizes, but also realize more efficient space utilization and convenient storage and transportation while ensuring the stability of the overall structure, greatly improving the practicality and economy of the enclosing.

[0013] Further, the scissor-type guardrail comprises a plurality of cross-arranged rotating rods, the intersection points between the rotating rods are hingedly connected through rotating shafts, and the rotating shafts at both ends are slidingly installed on adjacent columns.

[0014] According to the above technical means, the plurality of cross-arranged rotating rods form a scissor structure, and each rotating rod is flexibly hinged at the intersection through a rotating shaft, and the rotating shafts at both ends are also slidingly installed on adjacent columns, so that the scissor structure can be smoothly folded and stretched between the two columns to adapt to the requirements of different sizes of openings, ensuring the stability of the overall structure and the smoothness of the operation, improving the practicality and flexibility of the enclosure, and good stability.

[0015] Further, the scissor-type protective fence further comprises at least one rail, each of which is arranged parallel to the two columns and is spaced between the two columns, and each of which is slidingly connected with the adjacent rotating shaft.

[0016] According to the above technical means, by additionally arranging the rails parallel to the columns and spaced between the columns on the scissor-type protective fence, the overall strength, stability and enclosure effect of the scissor-type protective fence are enhanced, and through the sliding connection with the adjacent rotating shaft, synchronous folding and stretching with the scissor structure are realized, the continuity and integrity of the scissor structure are maintained, the construction efficiency is high, and the flexibility and adaptability of the enclosure assembly are further improved, ensuring that a safe and reliable enclosure effect can be provided in different construction environments.

[0017] Further, the telescopic structure comprises a sleeve and an inner rod, one end of the sleeve is connected perpendicularly to one of the adjacent columns, the other end is slidingly sleeved with one end of the inner rod, and the other end of the inner rod is connected perpendicularly to the other adjacent column.

[0018] According to the above technical means, the sliding sleeve design of the sleeve and the inner rod realizes flexible adjustment of the distance between the adjacent columns, which is simple in structure and convenient to operate, not only ensures the stability of the connection between the adjacent columns to ensure the stability of the closed polygon structure, but also can quickly adjust the distance through simple sliding operation. This high flexibility and adaptability make the enclosure seamlessly adapt to various construction environments and opening sizes, improve the construction efficiency, and at the same time maintain the safety and stability of the enclosure structure, providing an efficient and reliable enclosure solution for the construction site.

[0019] Further, the locking structure comprises a locking pin, the sleeve is formed with a first limiting hole, the inner rod is formed with a second limiting hole, and the locking pin is configured to be inserted into the first limiting hole and the second limiting hole to lock the inner rod on the sleeve.

[0020] According to the above technical means, through the cooperation of the locking pin and the first limiting hole and the second limiting hole, the inner rod is stably locked on the sleeve, which is simple in structure, easy to operate, and has obvious locking effect, can ensure that the enclosure remains stable after being adjusted to the required size, effectively prevents the structure from loosening or deforming due to accidental touch or wind force, thereby improving the safety and reliability of the enclosure, and also facilitates the construction personnel to quickly unlock and adjust the enclosure when needed, improving the construction efficiency.

[0021] Further, the number of the second limiting holes is two or more, and each of the second limiting holes is uniformly distributed along the length direction of the inner rod.

[0022] According to the above technical means, by setting two or more numbers of second limiting holes, the construction personnel can flexibly select appropriate second limiting holes for locking according to the actual construction needs, thereby realizing fine adjustment of the distance between the enclosing components, meeting the needs of different size hole enclosures, enhancing the adaptability and flexibility of the enclosure, and making the enclosure better adapt to various complex construction environments and conditions.

[0023] Further, the number of the telescopic structures of the first enclosing component is two or more, and each of the telescopic structures is uniformly distributed along the length direction of the stand column.

[0024] According to the above technical means, by setting two or more numbers of telescopic structures, not only the connection strength, stability and enclosure effect of the whole enclosure are enhanced, making the whole enclosure more solid and durable, but also more adjustment points and support points are provided, which helps to disperse the impact of external force on the enclosure, improving the wind pressure resistance and overall safety of the enclosure system.

[0025] Further, the bottom of each of the stand columns is fixed with a base.

[0026] According to the above technical means, the base as a structure for stable support of the stand column enhances the stability of the stand column, and in actual application, by firmly fixing the base on the ground, the inclination or collapse of the stand column due to external force is prevented, thereby ensuring the overall stability of the enclosure.

[0027] Further, the number of the first enclosing components and the second enclosing components is the same.

[0028] According to the above technical means, the number of the first enclosing components and the second enclosing components is same, which ensures the balance and stability of the enclosing structure, when pre-assembling, the same number of the first enclosing components and the second enclosing components simplifies the installation and disassembly process, the construction personnel can assemble according to the unified steps and standards, without adjusting the operation process due to the different number of the first enclosing components and the second enclosing components, thereby improving the construction efficiency, in addition, the same number of the first enclosing components and the second enclosing components makes the whole enclosing more neat and uniform, improves the overall image and appearance of the construction site.

[0029] The utility model realizes beneficial effect:

[0030] 1, the utility model discloses a first enclosing component and at least two groups of second enclosing component cross arrangement and connect in turn in advance prefabricated assembly form closed polygonal structure, can directly be enclosed in the construction hole on construction when, and the enclosing effect is good, and the structure is simple, and the disassembly and assembly are convenient, and the construction efficiency is high, and through telescopic structure, the spacing adjustment of two second enclosing components is realized, thereby the size of polygonal structure is adjusted according to different hole size and actual demand, the adaptability and flexibility of construction enclosing are improved, and when not using, can contract and reduce the area of occupation through telescopic structure, convenient transportation and storage.

[0031] 2, the utility model under the action of locking structure, when telescopic structure telescopes to preset position, locking structure locks telescopic structure, so that telescopic structure cannot telescope, thereby the stability and firmness of polygonal structure are improved, and the construction cost is low, and the safety of construction environment is guaranteed. DRAWINGS

[0032] Figure 1 It is the overhead view of the whole preassembly of the utility model;

[0033] Figure 2 It is the structure schematic view of the second enclosing component of the utility model;

[0034] Figure 3 It is the contraction schematic view of the first enclosing component of the utility model;

[0035] Figure 4 It is the extension schematic view of the first enclosing component of the utility model;

[0036] Figure 5 It is the partial sectional view of the telescopic component of the utility model.

[0037] 1 - first enclosure assembly; 11 - telescopic structure; 111 - sleeve; 112 - inner rod; 12 - locking structure; 121 - locking pin; 122 - first limiting hole; 123 - second limiting hole; 2 - second enclosure assembly; 21 - stand; 211 - base; 22 - scissor guardrail; 221 - rotating rod; 222 - rotating shaft; 223 - guardrail.

[0038] The drawings are only used for illustrative description, and should not be understood as a limitation on the patent; in order to better illustrate the embodiments, some components of the drawings may be omitted, enlarged or reduced, and do not represent the actual product size; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted; the same or similar reference numerals correspond to the same or similar components; the terms used in the drawings to describe the positional relationship are only used for illustrative description, and should not be understood as a limitation on the patent. DETAILED DESCRIPTION

[0039] It should be noted that the embodiments and technical features in the present application can be combined with each other without conflict, and the detailed description in the specific embodiments should be understood as an explanation of the purpose of the present application, and should not be regarded as an improper limitation on the present application.

[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the specific technical scheme of the present application will be further described in detail below in combination with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0041] In the embodiments of the present application, the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0042] In the embodiments of the present application, unless otherwise specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium.

[0043] In the embodiments of the present application, the terms "comprising", "containing" or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements not only includes those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0044] In the embodiments of the present application, the words "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design presented as "exemplary" or "for example" in the embodiments of the present application should not be construed as preferred or advantageous over other embodiments or design proposals. Rather, the use of "exemplary" or "for example" is intended to present concepts in a concrete manner.

[0045] The technical solutions of the present application will be described in detail below in combination with specific drawings.

[0046] The present embodiment relates to a kind of enclosures for hole construction, as shown in Figure 1 、 Figure 3 And Figure 4 It includes: at least two groups of first fence components 1 and at least two groups of second fence components 2, each first fence component 1 and each second fence component 2 are cross arranged and sequentially connected to form a closed polygon structure;Each first fence component 1 includes telescopic structure 11, each telescopic structure 11 is connected between adjacent two groups of second fence components 2 respectively, and is configured to be able to stretch, to adjust the interval of adjacent two groups of second fence components 2;Each telescopic structure 11 is provided with locking structure 12, each locking structure 12 is configured to be able to lock each telescopic structure 11 respectively when telescopic structure 11 is adjusted.

[0047] The embodiment is characterized in that: the first enclosing assembly 1 and the second enclosing assembly 2 are arranged in a staggered manner, and the first enclosing assembly 1 and the second enclosing assembly 2 are sequentially connected to form a closed polygonal structure. The polygonal structure can be directly arranged on a construction opening during construction, and has the advantages of good enclosing effect, simple structure, convenient disassembly and assembly, high construction efficiency, and the like. In addition, the distance between the two adjacent second enclosing assemblies 2 can be adjusted through the telescopic structure 11, so that the size of the polygonal structure can be adjusted according to the size of the opening and actual requirements, and the adaptability and flexibility of the construction enclosing are improved. In addition, when the telescopic structure 11 is telescoped to a preset position, the locking structure 12 locks the telescopic structure 11, so that the telescopic structure 11 cannot be telescoped, thereby improving the stability and firmness of the polygonal structure, and the polygonal structure is stable and durable, and the construction cost is low, and the safety of the construction environment is ensured.

[0048] Specifically, in actual application, according to the actual opening size of the construction site, a suitable number of first enclosing assemblies 1 and second enclosing assemblies 2 are pre-assembled, and then the assembled polygonal structure is transported to the construction site. The size of the polygonal structure is adjusted to a preset size through the telescopic structure 11, and the polygonal structure is directly enclosed on the opening of the construction site, and is locked by the locking structure 12 to ensure the firmness and stability of the polygonal structure. The polygonal structure has the advantages of fast installation speed, high construction efficiency, and good stability. When the site needs to be changed or the construction is completed, the locking structure 12 unlocks the telescopic structure 11, and the polygonal structure is shrunk to the smallest volume through the telescopic structure 11. The polygonal structure is compact and occupies a small area, and is convenient for transportation and storage. In one preferred embodiment of the present embodiment, the number of first enclosing assemblies 1 and second enclosing assemblies 2 is the same. The same number of first enclosing assemblies 1 and second enclosing assemblies 2 not only ensures the balance and stability of the enclosing structure, but also simplifies the installation and disassembly process during pre-assembly. Construction personnel can assemble according to unified steps and standards, without the need to adjust the operation process due to the different number of first enclosing assemblies 1 and second enclosing assemblies 2, thereby improving the construction efficiency. In addition, the same number of first enclosing assemblies 1 and second enclosing assemblies 2 makes the entire enclosure more uniform, and improves the overall image and appearance of the construction site.

[0049] In the embodiment, each second enclosing assembly 2 includes two columns 21 and a scissor-type guard rail 22. The two columns 21 are arranged in parallel, and the scissor-type guard rail 22 is connected between the two columns 21. The scissor-type guard rail 22 is configured to be foldable and / or stretchable to adjust the distance between the two columns 21. Each telescopic structure 11 is connected between two adjacent columns 21.

[0050] As Figure 2As shown, this embodiment uses a scissor-type guardrail 22 to connect two parallel posts 21 to form the protective part of the enclosure. The enclosure has good effect and stability. The scissor-type guardrail 22 has folding and / or stretching functions. Specifically, when folded, the scissor-type guardrail 22 retracts to reduce the space occupied, making it easy to transport and store. When stretched, the distance between the two posts 21 is adjusted to adapt to the needs of openings of different sizes. The structure is simple, flexible, and easy to adjust. In addition, the telescopic structure 11 further enhances the adaptability and flexibility of the entire enclosure structure. This allows the enclosure to not only quickly respond to the needs of openings of different sizes, but also achieve more efficient space utilization and convenient storage and transportation while ensuring the overall structural stability, greatly improving the practicality and economy of the enclosure.

[0051] In this embodiment, the scissor guardrail 22 includes a plurality of intersecting rotating rods 221. The intersection points of each rotating rod 221 are hinged together by rotating shafts 222, and the rotating shafts 222 at both ends are slidably installed on adjacent posts 21.

[0052] like Figure 2 As shown, this embodiment uses multiple intersecting rotating rods 221 to form a scissor-type structure. The scissor-type structure is existing technology and will not be elaborated on in this embodiment. Specifically, in actual application, the unfolded width of the scissor-type guardrail 22 can be quickly adjusted according to the specific conditions of the construction site, combined with the telescopic structure 11, to easily cope with openings of various sizes, improving the efficiency, effect and accuracy of enclosure, with good stability, providing strong support for the safety of the construction site. At the same time, its folding function also makes it occupy less space during transportation and storage, facilitating rapid transfer and deployment.

[0053] Furthermore, as a preferred embodiment of this invention, the scissor-type guardrail 22 further includes at least one railing 223, each railing 223 being arranged parallel to the two posts 21 and spaced apart between the two posts 21, and each railing 223 being slidably connected to an adjacent rotating shaft 222; as Figure 2 As shown, by adding railings 223 parallel to and spaced apart from the posts 21 to the scissor-type guardrail 22, not only is the overall strength, stability and enclosure effect of the scissor-type guardrail 22 enhanced, but also the synchronous folding and stretching with the scissor-type structure is achieved through the sliding connection with the adjacent pivot 222, maintaining the continuity and integrity of the scissor-type structure, resulting in high construction efficiency, further improving the flexibility and adaptability of the enclosure components, and ensuring a safe and reliable enclosure effect in different construction environments.

[0054] In the embodiment, the telescopic structure 11 comprises a sleeve 111 and an inner rod 112, one end of the sleeve 111 is vertically connected with one of the adjacent columns 21, the other end is slidingly sleeved with one end of the inner rod 112, and the other end of the inner rod 112 is vertically connected with the other adjacent column 21.

[0055] As shown in Figure 3 and Figure 4 , the embodiment realizes flexible adjustment of the distance between the adjacent columns 21 through the sliding sleeve design of the sleeve 111 and the inner rod 112, has simple structure and is convenient to operate, not only ensures the stability of the connection between the adjacent columns 21 to ensure the stability of the closed polygonal structure, but also can quickly adjust the distance through simple sliding operation, the high flexibility and adaptability make the enclosure seamlessly adapt to various construction environments and hole sizes, improve the construction efficiency, and at the same time maintain the safety and stability of the enclosure structure, providing an efficient and reliable enclosure solution for the construction site.

[0056] In the embodiment, the locking structure 12 comprises a locking pin 121, a first limiting hole 122 is formed on the sleeve 111, a second limiting hole 123 is formed on the inner rod 112, and the locking pin 121 is configured to be inserted into the first limiting hole 122 and the second limiting hole 123 to lock the inner rod 112 on the sleeve 111; further, as a preferred embodiment of the embodiment, the number of the second limiting hole 123 is two or more, and each second limiting hole 123 is uniformly distributed along the length direction of the inner rod 112.

[0057] As shown in Figure 5 , the embodiment realizes stable locking of the inner rod 112 on the sleeve 111 through cooperation of the locking pin 121 and the first limiting hole 122 and the second limiting hole 123, has simple structure and is convenient to operate, and has remarkable locking effect, can ensure that the enclosure remains stable after being adjusted to the required size, effectively prevents the structure from loosening or deforming due to accidental touching or wind force and the like, thereby improving the safety and reliability of the enclosure, at the same time, also facilitates the construction personnel to quickly unlock and adjust the enclosure when needed, improves the construction efficiency;

[0058] Specifically, in actual application, after the size adjustment is completed, the first limiting hole 122 corresponds to one of the second limiting holes 123, which is flexible, and the construction personnel only need to insert the locking pin 121 into the second limiting hole 123 corresponding to the first limiting hole 122 to complete the locking, thereby greatly saving the operation time and improving the construction efficiency. Under the close cooperation of the locking pin 121 and the first limiting hole 122 and the second limiting hole 123, the sliding of the inner rod 112 in the sleeve 111 is prevented, and the enclosure is ensured to remain stable after being adjusted to the required size, thereby enhancing the overall stability and safety of the enclosure. In addition, this locking mode also has good adaptability and flexibility, and the construction personnel can lock at different second limiting hole 123 positions according to actual needs to meet the needs of different size openings.

[0059] Further, as a preferred embodiment of the present embodiment, the number of telescopic structures 11 of the first enclosure assembly 1 is two or more, and each telescopic structure 11 is uniformly distributed along the length direction of the stand column 21. Figure 3 and Figure 4 As shown in the drawings, by providing two or more telescopic structures 11, not only the connection strength, stability and enclosure effect of the entire enclosure are enhanced, making the entire enclosure more solid and durable, but also more adjustment points and support points are provided, which helps to disperse the impact of external force on the enclosure and improves the wind pressure resistance and overall safety of the enclosure system.

[0060] Further, as a preferred embodiment of the present embodiment, the bottom of each stand column 21 is fixed with a base 211. Figure 1 and Figure 2 As shown in the drawings, the base 211 is a structure for stable support of the stand column 21, which enhances the stability of the stand column 21. In actual application, by firmly fixing the base 211 on the ground, the inclination or collapse of the stand column 21 due to external force is prevented, thereby ensuring the overall stability of the enclosure.

[0061] The above-mentioned serial numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments. The above is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent flow conversion based on the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A shield for use in a tunnel construction, characterized by comprising: The utility model relates to a kind of fence, including: At least two groups of first enclosing component (1) and at least two groups of second enclosing component (2), each first enclosing component (1) and each second enclosing component (2) are arranged in cross and sequentially connected to form closed polygon structure; Each first enclosing component (1) includes telescopic structure (11), each telescopic structure (11) is connected between two adjacent groups of second enclosing component (2) respectively, and is configured to be telescopic, to adjust the interval of two adjacent groups of second enclosing component (2); Each telescopic structure (11) is provided with locking structure (12), each locking structure (12) is configured to be locked when telescopic structure (11) is adjusted respectively.

2. The enclosure for use in a construction opening according to claim 1, wherein Each second enclosing component (2) includes two columns (21) and scissor guardrail (22), two columns (21) are arranged in parallel, scissor guardrail (22) is connected between two columns (21), and scissor guardrail (22) is configured to be folded and / or stretched, to adjust the interval of two columns (21);Each telescopic structure (11) is connected between two adjacent columns (21) respectively.

3. A barrier according to claim 2, wherein Scissor guardrail (22) includes a plurality of cross arrangement rotating rods (221), the intersection point between each rotating rod (221) is hinged by rotating shaft (222), and the rotating shaft (222) at both ends is slidably installed on adjacent column (21) respectively.

4. A barrier according to claim 3, wherein Scissor guardrail (22) further includes at least one rail (223), each rail (223) is arranged in parallel with two columns (21), and is spaced apart between two columns (21), and each rail (223) is slidably connected with adjacent rotating shaft (222) respectively.

5. The enclosure of claim 2, wherein Telescopic structure (11) includes sleeve (111) and inner rod (112), one end of sleeve (111) is connected perpendicularly with one adjacent column (21), the other end is slidably sleeved with one end of inner rod (112), and the other end of inner rod (112) is connected perpendicularly with the other adjacent column (21).

6. A barrier according to claim 5, wherein Locking structure (12) includes locking pin (121), first limiting hole (122) is formed in sleeve (111), second limiting hole (123) is formed in inner rod (112), and locking pin (121) is configured to be inserted into first limiting hole (122) and second limiting hole (123), so that inner rod (112) is locked on sleeve (111).

7. A barrier according to claim 6, wherein The number of second limiting hole (123) is two or more, and each second limiting hole (123) is evenly distributed along the length direction of inner rod (112).

8. The enclosure of claim 2, wherein The number of telescopic structure (11) of first enclosing component (1) is two or more, and each telescopic structure (11) is evenly distributed along the length direction of column (21).

9. The enclosure of claim 2, wherein The bottom of each column (21) is fixed with base (211).

10. The enclosure of claim 1, wherein The number of first enclosing component (1) and second enclosing component (2) is same.

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