A building guardrail for civil engineering

Abstract

The utility model provides a building guardrail for civil engineering, which belongs to the technical field of building guardrails. The utility model comprises a column, two columns are arranged, and the two columns are vertically parallel; a plurality of accommodating sleeves are arranged, and the plurality of accommodating sleeves are arranged at the side ends of the two columns, and a plurality of telescopic blocks are slid in the plurality of accommodating sleeves; and a supporting mechanism, which is arranged between the two columns and connected with the plurality of telescopic blocks to support the plurality of telescopic blocks. The plurality of accommodating sleeves and the plurality of telescopic blocks are longitudinally and parallelly fixed to the side ends of the plurality of folding rods and the pull rods through the threaded connection of the plurality of first bolts and the plurality of columns. At the same time, the plurality of threaded insert rings are threadedly connected with the plurality of second bolts to fix the two cross bars in the plurality of embedded grooves, so that the plurality of accommodating sleeves, the telescopic blocks, the plurality of folding rods and the folding grooves form a stable railing, which is quickly assembled through the plurality of bolts, thereby accelerating the rapid assembly of the building guardrail for civil engineering.

Description

Technical Field

[0001] The utility model belongs to the technical field of building guardrails, and in particular relates to a building guardrail for civil engineering. Background Art

[0002] Civil engineering is a general term for the science and technology of building various types of land engineering facilities. It includes the materials and equipment used, and the technical activities such as survey, design, construction, maintenance, and repair carried out. It also refers to the objects of engineering construction. These engineering facilities directly or indirectly serve many fields such as human life, production, military, and scientific research.

[0003] Building guardrails are railings with protective properties. Their main purpose is to provide safety and prevent people or objects from falling from heights or crossing dangerous areas. There are many types of building guardrails, which can be divided into many types according to different materials and uses. Common guardrail materials include iron, steel, wood, stone, jade, brick, bamboo, fabric, plastic, fiberglass, concrete (cement), etc. In industry, metal guardrails are more common, such as zinc steel guardrails, aluminum guardrails, stainless steel guardrails, etc.

[0004] The authorization publication number "CN220954983U" records "a building guardrail for civil engineering, including a counterweight base, a first vertical rod fixedly connected to the top surface of the counterweight base, an extension plate fixedly connected to one side surface of the first vertical rod, an insertion plate fixedly connected to one end of the extension plate, a second vertical plate fixedly connected to the top surface of the counterweight base, an insertion box movably connected to one side surface of the second vertical plate through a rotating shaft, a fastening top screw threaded through the top surface of the insertion box, and a support rod fixedly connected to the top surface of the second vertical plate. The utility model can change the angle between the insertion box and the second vertical plate and limit the angle by arranging a support rod, a rotating ring, a limit box, a movable plate, a limit spring and a limit column. At the same time, the angle is limited, so that the assembled building guardrail can form a required bending angle, thereby improving applicability."

[0005] The above patent can change the angle between the insertion box and the second vertical plate by setting a support rod, a rotating ring, a limit box, a movable plate, a limit spring and a limit column, and at the same time limit the angle, so that the assembled building guardrail can form a required bending angle, thereby improving applicability. When in use, an insertion plate is inserted into an adjacent insertion box. At this time, the insertion plate is limited in the insertion box by tightening the top screw, so that the two building guardrail assemblies are connected, and then the limit column and the movable plate are pulled as a whole by pulling the handle. At this time, the limit spring is deformed and generates elastic force, which moves the limit column away from the limit hole on the surface of the support rod, and then the angle between the insertion box and the second vertical plate is adjusted. Release the pull handle, and the limit spring returns to its original state, driving the movement of the movable plate and the limit column, and inserting the limit column into the corresponding limit hole, so that the rotating ring is limited to the outer surface of the support rod. At this time, the angle between the insertion box and the second vertical plate will not change easily, so that the combined building guardrail can be bent to improve applicability. However, in the actual use of existing civil engineering building guardrails, parts are assembled and fixed by splicing, which reduces the installation and construction efficiency of the civil engineering building guardrails. At the same time, the parts of the civil engineering building guardrails occupy a large space during transportation, which reduces the transportation efficiency of the civil engineering building guardrails. For this reason, we propose a civil engineering building guardrail. Utility Model Content

[0006] The purpose of the utility model is to provide a building guardrail for civil engineering, aiming to solve the problem that in the actual use of the existing civil engineering building guardrail, the parts are assembled and fixed in a splicing manner, which leads to a decrease in the installation and construction efficiency of the civil engineering building guardrail. At the same time, the parts of the civil engineering building guardrail occupy a large space during transportation, which reduces the transportation efficiency of the civil engineering building guardrail.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A building guardrail for civil engineering, comprising a column, wherein two columns are provided, and the two columns are vertically parallel;

[0009] A accommodating sleeve, wherein a plurality of accommodating sleeves are provided, and the plurality of accommodating sleeves are provided at the side ends of the two pillars, and a plurality of telescopic blocks are slidably disposed in the plurality of accommodating sleeves; and

[0010] The supporting mechanism is arranged between two upright posts and connected to a plurality of telescopic blocks to support the plurality of telescopic blocks.

[0011] As a preferred solution of the utility model, the supporting mechanism includes a connecting rod assembly, a sliding assembly and a reinforcement assembly. The connecting rod assembly is arranged between two columns, the connecting rod assembly is connected to multiple telescopic blocks, the sliding assembly is provided in multiple groups, the multiple groups of sliding assemblies are arranged between multiple accommodating sleeves and multiple telescopic blocks, and the reinforcement assembly is arranged at the side ends of multiple telescopic blocks.

[0012] As a preferred scheme of the utility model, the connecting rod assembly includes a folding groove, an embedding groove, a pull rod, a folding rod, an embedding hole, a threaded buckle and a first bolt. There are multiple folding grooves, and multiple folding grooves are opened between the inner walls of two columns. There are multiple folding rods, and multiple folding rods are rotatably connected to the multiple folding grooves through hinge shafts, and multiple folding rods are rotatably connected to each other through hinge shafts. There are multiple pull rods, and multiple pull rods are rotatably connected to the side ends of multiple folding rods through multiple hinge shafts of different lengths. Multiple embedding grooves are opened at the side ends of multiple telescopic blocks, and multiple embedding holes are connected to multiple embedding grooves. There are multiple threaded buckles, and multiple threaded buckles are of different lengths. Multiple threaded buckles are fixedly connected to multiple folding rods and pull rods, and multiple threaded buckles correspond to multiple embedding holes. There are multiple first bolts, and multiple first bolts are threadedly connected to multiple threaded buckles.

[0013] As a preferred solution of the utility model, each group of the sliding components includes a slide groove and a slider, and there are four slide grooves, which are opened at two side ends of the accommodating sleeve, and the four slide grooves are connected to the inner wall of the accommodating sleeve. There are two sliders, and the two slide grooves are fixedly connected between the inner walls of the two telescopic blocks. The two ends of the two slide grooves extend to the two side ends of the two telescopic blocks, and the two extended ends of the two sliders slide between the inner walls of the four slide grooves.

[0014] As a preferred solution of the utility model, the reinforcement component includes a cross bar, a threaded insert ring, a second bolt and a socket, wherein a plurality of the sockets are provided, and the plurality of the sockets are opened at the side ends of the plurality of telescopic blocks, the cross bar is provided with two, and the two cross bars are provided in the plurality of embedding grooves, the threaded insert ring is provided with a plurality, and the plurality of the threaded insert rings are inserted in the plurality of sockets, and the plurality of the threaded insert rings are connected to the two cross bars, and a plurality of the second bolts are provided, and the plurality of the second bolts are threadedly connected in the plurality of threaded insert rings.

[0015] As a preferred solution of the utility model, the bottoms of the two upright posts are fixedly connected with pins.

[0016] As a preferred solution of the utility model, the two upright posts, the plurality of accommodating sleeves, the plurality of telescopic blocks, the plurality of pull rods, the plurality of folding rods and the two cross rods are all subjected to surface galvanizing treatment.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. In this scheme, during the installation and construction of the building guardrail for civil engineering, by pulling two columns, multiple folding rods are pulled out from multiple folding grooves, so that the multiple folding rods are staggered and connected through hinges, and at the same time, two pins are inserted into two cement holes or soil to vertically fix the multiple folding rods and two columns to the ground, and at the same time, multiple telescopic blocks are pulled out from multiple accommodating sleeves, and multiple accommodating sleeves and multiple telescopic blocks are longitudinally and parallelly fixed to the side ends of multiple folding rods and pull rods through threaded connection of multiple first bolts and multiple columns, and at the same time, multiple threaded insert rings are threadedly connected to multiple second bolts to fix two cross bars in multiple embedded grooves, so that multiple accommodating sleeves, telescopic blocks, multiple folding rods and folding grooves form stable railings, which are quickly assembled through multiple bolts to accelerate the rapid assembly of the building guardrail for civil engineering.

[0019] 2. In this scheme, during the transportation of the civil engineering building guardrail, the two columns are moved closer to each other, and the multiple folding rods are squeezed into the multiple folding grooves so that the multiple folding rods are folded, and the multiple embedded holes are rotated between the multiple folding rods. At the same time, the multiple telescopic blocks are inserted into the multiple accommodating sleeves, and the multiple accommodating sleeves and the multiple telescopic blocks are folded and placed between the gaps of the multiple folding rods. Two cross bars are inserted between the multiple folding rods to realize the folding of the civil engineering building guardrail, reduce the space volume occupied by the civil engineering building guardrail, and then facilitate transportation, thereby improving the transportation efficiency of the civil engineering building guardrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a first-perspective stereoscopic image of a building guardrail for civil engineering of the utility model;

[0022] Figure 2 This is a second perspective stereogram of a building guardrail for civil engineering of the utility model;

[0023] Figure 3 A half-section diagram of a building guardrail for civil engineering of the utility model;

[0024] Figure 4 The utility model is a kind of building guardrail for civil engineering Figure 3A magnified image of point A;

[0025] Figure 5 The utility model is a kind of building guardrail for civil engineering Figure 3 The enlarged view of point B;

[0026] Figure 6 The utility model is an exploded view of a building guardrail for civil engineering.

[0027] In the figure: 1, column; 2, folding groove; 3, pin; 4, accommodating sleeve; 5, slide groove; 6, slider; 7, telescopic block; 8, embedded groove; 9, cross bar; 10, pull rod; 11, folding rod; 12, embedded hole; 13, threaded buckle; 14, first bolt; 15, threaded insert ring; 16, second bolt; 17, plug hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] Reference Figure 1 - Figure 6 , a building guardrail for civil engineering, comprising:

[0031] The columns 1 are provided with two columns, and the two columns 1 are vertically parallel;

[0032] A accommodating sleeve 4, wherein a plurality of accommodating sleeves 4 are provided, and the plurality of accommodating sleeves 4 are provided at the side ends of the two upright posts 1, and a plurality of telescopic blocks 7 are slidably disposed in the plurality of accommodating sleeves 4; and

[0033] The supporting mechanism is disposed between the two upright posts 1 , and is connected to the plurality of telescopic blocks 7 to support the plurality of telescopic blocks 7 .

[0034] In the utility model, two columns 1 are used to support and fix a plurality of folding rods 11, a plurality of accommodating sleeves 4 are used to accommodate the extension and retraction of a plurality of telescopic blocks 7, and a plurality of telescopic blocks 7 are extended from a plurality of accommodating sleeves 4 to form vertical and parallel blocking rods. A supporting mechanism is connected to the plurality of telescopic blocks 7 to support the plurality of telescopic blocks 7 to form a stable structural strength.

[0035] The supporting mechanism includes a connecting rod assembly, a sliding assembly and a reinforcement assembly. The connecting rod assembly is arranged between two columns 1, and the connecting rod assembly is connected to multiple telescopic blocks 7. The sliding assembly is provided with multiple groups, and the multiple groups of sliding assemblies are arranged between multiple accommodating sleeves 4 and multiple telescopic blocks 7. The reinforcement assembly is arranged at the side ends of the multiple telescopic blocks 7.

[0036] In the utility model, the connecting rod assembly is used to support the multiple telescopic blocks 7 and the accommodating sleeve 4, the sliding assembly is used to limit and guide the telescopic movement of the multiple telescopic blocks 7, and the reinforcing assembly is used to ensure that the multiple telescopic blocks 7 are lifted and lowered synchronously.

[0037] The connecting rod assembly includes a folding groove 2, an embedding groove 8, a pull rod 10, a folding rod 11, an embedding hole 12, a threaded buckle 13 and a first bolt 14. A plurality of folding grooves 2 are provided, and a plurality of folding grooves 2 are opened between the inner walls of the two columns 1. A plurality of folding rods 11 are provided, and a plurality of folding rods 11 are rotatably connected to the plurality of folding grooves 2 through hinge shafts, and a plurality of folding rods 11 are rotatably connected to the sides of the plurality of folding rods 11 through a plurality of hinge shafts of different lengths. At the end, the side ends of the multiple telescopic blocks 7 are provided with multiple embedding grooves 8, multiple embedding holes 12 are provided, and the multiple embedding holes 12 are opened at the side ends of the multiple telescopic blocks 7, and the multiple embedding holes 12 are communicated with the multiple embedding grooves 8, a plurality of threaded buckles 13 are provided, and the multiple threaded buckles 13 are of different lengths, and the multiple threaded buckles 13 are fixedly connected to the multiple folding rods 11 and the pull rod 10, and the multiple threaded buckles 13 correspond to the multiple embedding holes 12, and a plurality of first bolts 14 are provided, and the multiple first bolts 14 are threadedly connected to the multiple threaded buckles 13.

[0038] In the utility model, the multiple folding grooves 2 are provided to accommodate the multiple folding rods 11, the multiple folding rods 11 are staggeredly connected through the hinge shaft, and the multiple folding rods 11 and the pull rod 10 are used to support and fix the multiple thread buckles 13 of different lengths, the multiple embedding grooves 8 are provided to accommodate two parallel cross bars 9, the multiple embedding holes 12 are provided to accommodate the insertion of the multiple first bolts 14, the multiple thread buckles 13 are used to threadably connect the multiple first bolts 14, and the multiple first bolts 14 are threadably connected in the multiple thread buckles 13. During the construction process, During the movement of the two columns 1 away from each other, the multiple folding rods 11 are connected by a hinge shaft to pull the multiple folding rods 11 out of the multiple folding grooves 2, thereby accelerating the rapid deployment of the connecting rod assembly. At the same time, during transportation, the multiple folding rods 11 and the pull rods 10 are folded by the hinge shaft, so that the multiple folding rods 11 are inserted into the multiple folding grooves 2, and the multiple pull rods 10 are rotated between the multiple folding rods 11, thereby compressing the space volume occupied by the connecting rod assembly, thereby facilitating transportation and improving the transportation efficiency of the construction guardrail for civil engineering.

[0039] Each group of sliding components includes a slide groove 5 and a slider 6. There are four slide grooves 5, which are opened at two side ends of the accommodating sleeve 4. The four slide grooves 5 are connected to the inner wall of the accommodating sleeve 4. There are two sliders 6. The two slide grooves 5 are fixedly connected between the inner walls of the two telescopic blocks 7. The two ends of the two slide grooves 5 extend to the two side ends of the two telescopic blocks 7, and the two extended ends of the two sliders 6 slide between the inner walls of the four slide grooves 5.

[0040] In the utility model, the four slide grooves 5 are provided to accommodate the sliding of the two sliders 6, and the two sliders 6 are slidably matched with the four slide grooves 5 to thereby realize telescopic guidance of the two telescopic blocks 7, and the two telescopic blocks 7 are slidably matched with the four slide grooves 5 by the two sliders 6 to thereby realize telescopic guidance of the two telescopic blocks 7, thereby further compressing the longitudinal railings, and when the two telescopic blocks 7 are compressed in the accommodating sleeve 4, the compressed accommodating sleeve 4 and the two telescopic blocks 7 can be placed in the gap between the multiple folding rods 11, thereby further reducing the space volume occupied by the building guardrail for civil engineering.

[0041] The reinforcement component includes a cross bar 9, a threaded insert ring 15, a second bolt 16 and a socket 17. There are multiple sockets 17, and the multiple sockets 17 are opened at the side ends of the multiple telescopic blocks 7. There are two cross bars 9, and the two cross bars 9 are set in multiple embedding grooves 8. There are multiple threaded insert rings 15, and the multiple threaded insert rings 15 are inserted in the multiple sockets 17. The multiple threaded insert rings 15 are all connected to the two cross bars 9. There are multiple second bolts 16, and the multiple second bolts 16 are threadedly connected in the multiple threaded insert rings 15.

[0042] In the utility model, multiple insertion holes 17 are opened to accommodate multiple threaded insert rings 15, and two cross bars 9 are used to support and fix the multiple threaded insert rings 15. The multiple threaded insert rings 15 are connected with the multiple insertion holes 17 to make the multiple telescopic blocks 7 rise and fall synchronously. At the same time, the multiple threaded insert rings 15 are used to threadably connect the multiple second bolts 16. The multiple second bolts 16 are threadedly connected with the multiple threaded insert rings 15 to fix the two cross bars 9 in the multiple embedding grooves 8. In the process of reinforcing the multiple telescopic blocks 7, the multiple threaded insert rings 15 are inserted into the multiple insertion holes 17. The multiple second bolts 16 are threadedly connected with the multiple threaded insert rings 15 to achieve synchronous fixation of the multiple telescopic blocks 7, so that the multiple telescopic blocks 7 can be moved synchronously, which facilitates the assembly of the multiple telescopic blocks 7.

[0043] The bottoms of the two columns 1 are fixedly connected with pins 3 .

[0044] In the utility model, two inserting nails 3 are used to support and fix two upright posts 1. The two inserting nails 3 are inserted into soil or cement holes to stably support the two upright posts 1.

[0045] The two upright posts 1, the plurality of accommodating sleeves 4, the plurality of telescopic blocks 7, the plurality of pull rods 10, the plurality of folding rods 11 and the two cross bars 9 are all subjected to surface galvanizing treatment.

[0046] In the utility model, two columns 1, multiple accommodating sleeves 4, multiple telescopic blocks 7, multiple pull rods 10, multiple folding rods 11 and two cross bars 9 are all surface-galvanized to reduce oxidation corrosion of the two columns 1, multiple accommodating sleeves 4, multiple telescopic blocks 7, multiple pull rods 10, multiple folding rods 11 and two cross bars 9.

[0047] The use process of a building guardrail for civil engineering provided by the utility model is as follows:

[0048] During the installation and construction of the building guardrail for civil engineering, the multiple folding rods 11 are pulled out from the multiple folding grooves 2 by pulling two columns 1, so that the multiple folding rods 11 are staggeredly connected through the hinge shaft, and at the same time, two pins 3 are inserted into two cement holes or soil, and the multiple folding rods 11 and the two columns 1 are vertically fixed to the ground, and at the same time, the multiple telescopic blocks 7 are pulled out from the multiple accommodating sleeves 4, and the multiple accommodating sleeves 4 and the multiple telescopic blocks 7 are longitudinally and parallelly fixed to the side ends of the multiple folding rods 11 and the pull rod 10 through the threaded connection of the multiple first bolts 14 and the multiple columns 1, and at the same time, the multiple threaded insert rings 15 are threadedly connected with the multiple second bolts 16, and the two cross bars 9 are fixedly connected to the multiple embedded grooves 8, so that the multiple accommodating sleeves 4, the telescopic blocks 7, the multiple folding rods 11 and the folding grooves 2 form a stable railing, and the multiple bolts are used for rapid assembly, thereby accelerating the rapid assembly of the building guardrail for civil engineering;

[0049] During the transportation of the civil engineering building guardrail, the two columns 1 are moved closer to each other, and the multiple folding rods 11 are squeezed into the multiple folding grooves 2, so that the multiple folding rods 11 are folded, and the multiple embedding holes 12 are rotated between the multiple folding rods 11. At the same time, the multiple telescopic blocks 7 are inserted into the multiple accommodating sleeves 4, and the multiple accommodating sleeves 4 and the multiple telescopic blocks 7 are folded and placed between the gaps of the multiple folding rods 11, and the two cross bars 9 are inserted between the multiple folding rods 11 to achieve the folding of the civil engineering building guardrail, reduce the space volume occupied by the civil engineering building guardrail, and then facilitate transportation, thereby improving the transportation efficiency of the civil engineering building guardrail.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A building guardrail for civil engineering, characterized in that: include; A column (1), wherein two columns (1) are provided, and the two columns (1) are vertically parallel; A accommodating sleeve (4), wherein a plurality of accommodating sleeves (4) are provided, and the plurality of accommodating sleeves (4) are provided at the side ends of the two upright posts (1), and a plurality of telescopic blocks (7) are slidably disposed in the plurality of accommodating sleeves (4); and A support mechanism is provided between two upright posts (1), and the support mechanism is connected to a plurality of telescopic blocks (7) to support the plurality of telescopic blocks (7).

2. A civil engineering building guardrail according to claim 1, characterized in that: The support mechanism comprises a connecting rod assembly, a sliding assembly and a reinforcement assembly, wherein the connecting rod assembly is arranged between two upright posts (1), the connecting rod assembly is connected to a plurality of telescopic blocks (7), a plurality of sliding assemblies are arranged, the plurality of sliding assemblies are arranged between a plurality of accommodating sleeves (4) and a plurality of telescopic blocks (7), and the reinforcement assembly is arranged at the side ends of the plurality of telescopic blocks (7).

3. A civil engineering building guardrail according to claim 2, characterized in that: The connecting rod assembly comprises a folding groove (2), an embedding groove (8), a pulling rod (10), a folding rod (11), an embedding hole (12), a threaded buckle (13) and a first bolt (14). The folding groove (2) is provided in plurality, and the plurality of folding grooves (2) are opened between the inner walls of two columns (1). The folding rod (11) is provided in plurality, and the plurality of folding rods (11) are rotatably connected to the plurality of folding grooves (2) via hinge shafts, and the plurality of folding rods (11) are rotatably connected to each other via hinge shafts. The pulling rod (10) is provided in plurality, and the plurality of pulling rods (10) are rotatably connected to the side ends of the plurality of folding rods (11) via a plurality of hinge shafts of different lengths. A plurality of embedding grooves (8) are provided at the side ends of the plurality of telescopic blocks (7), a plurality of embedding holes (12) are provided, the plurality of embedding holes (12) are provided at the side ends of the plurality of telescopic blocks (7), and the plurality of embedding holes (12) are communicated with the plurality of embedding grooves (8), a plurality of threaded buckles (13) are provided, the plurality of threaded buckles (13) are of different lengths, the plurality of threaded buckles (13) are fixedly connected to the plurality of folding rods (11) and the pull rod (10), and the plurality of threaded buckles (13) correspond to the plurality of embedding holes (12), a plurality of first bolts (14) are provided, and the plurality of first bolts (14) are threadedly connected to the plurality of threaded buckles (13).

4. A civil engineering building guardrail according to claim 3, characterized in that: Each group of the sliding components comprises a slide groove (5) and a slider (6), wherein four slide grooves (5) are provided, and the four slide grooves (5) are opened at two side ends of the accommodating sleeve (4), and the four slide grooves (5) are all connected to the inner wall of the accommodating sleeve (4), and two sliders (6) are provided, and the two slide grooves (5) are fixedly connected between the inner walls of the two telescopic blocks (7), and the two ends of the two slide grooves (5) extend to the two side ends of the two telescopic blocks (7), and the two extended ends of the two sliders (6) slide between the inner walls of the four slide grooves (5).

5. A civil engineering building guardrail according to claim 4, characterized in that: The reinforcement component comprises a cross bar (9), a threaded insert ring (15), a second bolt (16) and a socket (17); a plurality of the sockets (17) are provided, and the plurality of the sockets (17) are opened at the side ends of the plurality of telescopic blocks (7); two cross bars (9) are provided, and the two cross bars (9) are provided in a plurality of embedding grooves (8); a plurality of the threaded insert rings (15) are provided, and the plurality of the threaded insert rings (15) are inserted in the plurality of sockets (17), and the plurality of the threaded insert rings (15) are connected to the two cross bars (9); a plurality of the second bolts (16) are provided, and the plurality of the second bolts (16) are threadedly connected in the plurality of threaded insert rings (15).

6. A civil engineering building guardrail according to claim 5, characterized in that: The bottoms of the two upright posts (1) are fixedly connected with inserting pins (3).

7. A civil engineering building guardrail according to claim 6, characterized in that: The two upright posts (1), the plurality of accommodating sleeves (4), the plurality of telescopic blocks (7), the plurality of pull rods (10), the plurality of folding rods (11) and the two cross rods (9) are all subjected to surface galvanizing treatment.

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