Punching-free fast-assembly telescopic edge protective railing
By designing a drill-free, quick-installation telescopic edge protection railing, utilizing support columns and telescopic railing components, combined with disassembly and assembly parts and limit brackets, the problem of complex construction and insufficient stability of existing edge protection railings is solved. This enables rapid and flexible installation and removal of the protection, and is suitable for various sizes and specifications.
Patent Information
- Application Number
- CN202511158235.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-19
- Publication Date
- 2025-11-18
AI Technical Summary
Existing edge protection railings suffer from problems such as complex construction, high material and labor costs, insufficient stability, and poor aesthetics. In particular, the steel pipe fastener type and the expansion bolt fixed mesh type have defects in terms of construction speed and safety.
A drilling-free, quick-installation telescopic edge protection railing has been designed, which uses support columns and telescopic railing components. The support crossbars can be disassembled and assembled through the assembly and disassembly components to achieve vertical and horizontal adjustment. Combined with limit brackets and toe plates, it provides stable protection.
It enables rapid and flexible installation and removal of edge protection, is suitable for protection locations of different heights and widths, improves construction efficiency and safety, avoids the use of expansion bolts, and enhances stability and aesthetics.
Smart Images

Figure CN120968274A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of edge protection technology in building construction, specifically to a quick-installation telescopic edge protection railing that requires no drilling. Background Technology
[0002] With the development of the construction industry, the styles of edge protection railings in building construction are becoming increasingly diverse. In actual construction, when a building is under construction, edge protection railings need to be installed at the window locations on each floor to serve as a fall prevention warning.
[0003] Currently, the most common types of edge protection railings are steel pipe and coupler type and expansion bolt fixed mesh type. However, in practical applications, steel pipe and coupler type railings require significant labor and materials for installation, negatively impact aesthetics, and lack stability, making them prone to tipping over or moving, resulting in lower safety. Expansion bolt fixed mesh type railings, on the other hand, require bolts to be installed on the main structure during installation and removed during dismantling, leading to slower construction and higher material and labor costs. Summary of the Invention
[0004] To address the aforementioned problems, this invention provides a drill-free, quick-installation telescopic edge protection railing, as detailed below.
[0005] To achieve the above objectives, the present invention provides the following technical solution: The present invention provides a quick-installation telescopic edge protection railing without drilling, comprising support columns, railing components and support crossbars. Several support columns are provided and are all vertically placed. At the same time, telescopic railing components are combined between adjacent support columns to use the top and bottom of the support columns as anchoring support surfaces so that the railing components are set in the edge protection position. Each of the adjacent support columns is detachably connected to several support crossbars via assembly components. The support crossbars have a lateral telescopic adjustment function to provide protection against lateral impact forces for the support columns.
[0006] Preferably, the guardrail assembly is a steel pipe telescopic guardrail, with mounting wing seats extending and fixed to the lower part of the opposite end faces of the supporting columns on both sides, and the two ends of the guardrail assembly are respectively rotatably mounted on the front of the corresponding mounting wing seats.
[0007] Preferably, the front bottom of each of the supporting columns is fixed with a pair of limiting brackets, and a foot plate is vertically placed between the limiting brackets of the supporting columns on both sides.
[0008] Preferably, the limiting brackets are all U-shaped or L-shaped, and the notches of both limiting brackets of the same supporting column face outward.
[0009] Preferably, each of the supporting columns includes a lower supporting sleeve and an upper supporting column. The lower supporting sleeves are all vertically arranged, and the guardrail components are all assembled between the adjacent lower supporting sleeves on both sides. The inner circumference of the lower supporting sleeve is vertically slidably fitted with the upper supporting rod that can reciprocate up and down. The upper front part of each lower supporting sleeve is provided with several mounting holes along the longitudinal direction. The mounting holes are all through holes, and each mounting hole is threaded with a clamping stud along the longitudinal direction.
[0010] Preferably, each of the supporting crossbars includes a crossbar sleeve and a crossbar rod. The inner circumference of the crossbar sleeve is slidably fitted with the crossbar rod, which is capable of reciprocating laterally. The outer ends of the crossbar sleeve and the crossbar rod, which are far apart from each other, are detachably assembled with the corresponding supporting column through the disassembly and assembly assembly. The top surface of the crossbar sleeve has several mating holes vertically opened near the end, and each mating hole is fitted with a locking stud inserted along a vertical thread.
[0011] Preferably, the lower support sleeve, the upper support column, the horizontal support sleeve, and the horizontal support rod are all rectangular tubes with one end open and the other end closed.
[0012] Preferably, the inner ends of the clamping stud and the locking stud are coaxially fixedly connected with an elastic pressure block and a buffer protrusion, respectively, and the outer diameter of the elastic pressure block is smaller than the diameter of the mounting hole, and the outer diameter of the buffer protrusion is smaller than the diameter of the mating hole.
[0013] Preferably, each of the disassembly and assembly components includes a fixing seat and a mating stud. Several fixing seats are vertically fixed at the front of the lower support sleeve, and the fixing seats on both sides are respectively laterally opposite each other. Each fixing seat has a mating groove vertically, and the mating groove is a through groove in the lateral direction. The outer ends of the horizontal support sleeve and the support column that are far apart from each other are respectively fixed with the mating stud in the lateral direction. The mating studs all pass through the corresponding mating groove in a lateral sliding engagement manner. The outer ends of the mating studs extending out of the corresponding mating groove are coaxially fitted with limit nuts, and the limit nuts are all pressed against the outer side of the corresponding fixing seat.
[0014] Preferably, the mating slots are all vertically arranged waist-shaped slots with open tops, and when the limiting nut is tightened, the outer ends of the mating studs do not exceed the corresponding limiting nut.
[0015] The aforementioned drill-free, quick-installation, telescopic edge protection railing, specifically used for edge protection of open areas such as floor windows, features several vertically erected support columns with vertical telescopic adjustment capabilities. Adjacent support columns are connected by telescopic railing components. The vertical dimensions of the support columns are adaptively adjusted based on the distance between the floor slab and ceiling. The top and bottom ends of the support columns serve as anchoring surfaces, ensuring the railing components are positioned at the edge protection location. This installation method is simple and easy to implement, eliminating the need for expansion bolts or other additional components at the edge protection location. This system is suitable for edge protection positions of various heights and sizes, offering high applicability, quick installation and disassembly, and flexible relocation. Because adjacent support columns are detachably connected by the detachable assembly, and the support crossbars have lateral telescopic adjustment capabilities, connecting adjacent support columns on both sides provides protection against lateral impacts. This ensures stable and reliable anchoring of the support columns and makes it suitable for edge protection positions of varying widths. Furthermore, because each support column has a pair of fixed limiting brackets at its front bottom, and adjacent limiting brackets on both sides... The toe plate is vertically mounted, thus protecting the lower part near the ground and preventing accidental injury to personnel approaching the guardrail assembly. Furthermore, the vertical dimension of the support column can be quickly adjusted and locked by the upper support column sliding vertically along the lower support sleeve and tightening the clamping stud. This vertical adjustment method is simple and easy to implement, facilitating both adjustment to the appropriate size and subsequent loosening and quick retraction of the upper support column for removal. Additionally, the horizontal support column of the support crossbar slides along the horizontal support sleeve... The lateral telescoping and sliding of the tube, along with tightening the locking stud, allows for rapid adjustment and locking of the lateral dimensions of the supporting crossbar. This lateral telescoping adjustment method is simple and easy to implement, facilitating the adjustment to a suitable size and allowing for quick disassembly after loosening the locking stud and retracting the crossbar. Furthermore, the assembly of the crossbar involves the mating stud sliding from top to bottom into the mating groove and tightening the limiting nut to press it against the side surface of the fixed seat. This allows the supporting crossbar to be assembled between the fixed seats on both sides. Simultaneously, simply loosening the limiting nut allows the mating stud to slide upwards from the mating groove.This allows the supporting crossbar to be quickly separated from the fixed seats on both sides. The assembly method of the supporting crossbar between the fixed seats on both sides is simple and easy to implement. It facilitates the quick assembly of the supporting crossbar between the fixed seats on both sides, enhancing the connection between the adjacent supporting columns on both sides. It also facilitates the quick disassembly of the supporting crossbar for the disassembly and relocation of the supporting columns and the guardrail assembly.
[0016] The beneficial effects are as follows: 1. The present invention has several supporting columns that are vertically installed. The supporting columns are equipped with vertical telescopic adjustment function, and telescopic guardrail components are installed between adjacent supporting columns. The vertical dimension of the supporting columns is adaptively adjusted according to the distance between the floor slab and the ceiling. The top and bottom ends of the supporting columns can be used as anchoring support surfaces to set up the guardrail components at the edge protection position. The method of setting up the guardrail components at the edge protection position is simple and easy to implement. It does not require the addition of expansion bolts or other components at the edge protection position. At the same time, it can be used for edge protection positions of different heights and sizes. It has high applicability, quick installation and dismantling, and flexible turnover. 2. Adjacent support columns can be detachably assembled with support crossbars via disassembly and assembly components. The support crossbars have lateral telescopic adjustment functions. By connecting adjacent support columns on both sides with the support crossbars, the support columns can be protected against lateral impacts. This ensures that the support columns are stable and reliable after anchoring and can be used for edge protection positions of different widths and sizes. 3. The bottom front of each support column is fixed with a pair of limit brackets, and a toe plate is vertically placed between the adjacent limit brackets on both sides. The toe plate can protect the lower part near the ground and prevent accidental injury to people when they approach the guardrail components. 4. By vertically sliding the upper support column of the support column along the lower support sleeve and tightening the clamping stud, the vertical dimension of the support column can be quickly adjusted and locked. The vertical extension and retraction adjustment of the support column is simple and easy to implement. It is convenient to adjust the vertical extension and retraction of the support column to the size that meets the use, and it is also convenient to quickly retract the upper support column after loosening the clamping stud and then dismantle it. 5. By sliding the horizontal support column of the supporting horizontal member laterally along the horizontal support sleeve and tightening the locking stud, the lateral dimension of the supporting horizontal member can be quickly adjusted and locked. The lateral extension and retraction adjustment method of the supporting horizontal member is simple and easy to implement. It is convenient to adjust the lateral extension and retraction of the supporting horizontal member to the size that meets the use, and it is also convenient to quickly retract the horizontal support column after loosening the locking stud for disassembly. 6. By sliding the mating studs of the assembly components from top to bottom into the mating slots and tightening the limiting nuts to press them against the side surface of the fixed seats, the support crossbar can be assembled between the fixed seats on both sides. At the same time, by simply loosening the limiting nuts, the mating studs can be moved upwards and slid out of the mating slots from bottom to top, thus allowing the support crossbar to be quickly separated from the fixed seats on both sides. The assembly method of the support crossbar between the fixed seats on both sides is simple and easy to implement. It not only facilitates the quick assembly of the support crossbar between the fixed seats on both sides and enhances the connection between the adjacent support columns on both sides, but also facilitates the quick disassembly of the support crossbar for the disassembly and turnover of the support columns and guardrail components. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is an overall isometric schematic diagram of the present invention; Figure 2 This is the present invention. Figure 1 Enlarged view of a portion at point A; Figure 3 This is the present invention. Figure 1 A magnified view of section B; Figure 4 This is the present invention. Figure 1 Cross-section diagram Figure 1 ; Figure 5 This is the present invention. Figure 4 A magnified view of a portion at point C; Figure 6 This is the present invention. Figure 1 Cross-section diagram Figure 2 ; Figure 7 This is the present invention. Figure 6 A magnified view of a portion at point D; Figure 8 This is the present invention. Figure 1 Front view diagram.
[0019] The annotations in the attached figures are explained as follows: 1. Support column component; 101. Upper support column; 102. Lower support sleeve; 103. Mounting hole; 104. Clamping stud; 105. Handle; 106. Elastic pressure block; 2. Assembly / disassembly component; 201. Mating slot; 202. Limit nut; 203. Mating stud; 204. Fixing seat; 3. Mounting wing seat; 4. Guardrail assembly; 5. Toe plate; 6. Limiting slot; 7. Support crossbar component; 701. Horizontal support sleeve; 702. Mating hole; 703. Locking stud; 704. End; 705. Horizontal support column; 706. Buffer protrusion. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0021] See Figures 1-8 As shown, this invention provides a drill-free, quick-installation, telescopic edge protection railing, including support columns 1, railing components 4, and support crossbars 7. Several support columns 1 are provided, all vertically positioned. Telescopic railing components 4 are combined between adjacent support columns 1, using the top and bottom ends of the support columns 1 as anchoring surfaces to position the railing components 4 at the edge protection location. Specifically, each support column 1 includes a lower support sleeve 102 and an upper support column 101. The lower support sleeves 102 are all vertically positioned, and the railing components 4 are combined between adjacent lower support sleeves 102 on both sides. The inner circumference of the lower support sleeve 102 is vertically slidably fitted with an upper support rod capable of reciprocating up and down. The upper front part of each lower support sleeve 102 is longitudinally opened. There are several mounting holes 103, all of which are through holes, and each mounting hole 103 is threaded longitudinally with a clamping stud 104 inserted into it. The purpose of this arrangement is to adaptively adjust the vertical dimension of the support column 1 according to the distance between the floor slab and the ceiling. The top and bottom ends of the support column 1 can be used as anchoring support surfaces to set the guardrail assembly 4 in the edge protection position. The method of setting the guardrail assembly 4 in the edge protection position is simple and easy to implement. Furthermore, by vertically sliding the upper support column 101 of the support column 1 along the lower support sleeve 102 and tightening the clamping stud 104, the vertical dimension of the support column 1 can be quickly adjusted and locked. The method of vertically adjusting the support column 1 is simple and easy to implement.
[0022] See Figures 1-8As shown, adjacent support columns 1 are detachably connected to each other via assembly 2 by several support crossbars 7, and the support crossbars 7 have a lateral telescopic adjustment function to provide protection against lateral impact forces for the support columns 1. Specifically, each support crossbar 7 includes a horizontal support sleeve 701 and a horizontal support rod. The inner circumference of the horizontal support sleeve 701 is laterally slidably fitted with a horizontal support rod capable of lateral reciprocating telescopic movement. The outer ends of the horizontal support sleeve 701 and the horizontal support rod, which are far apart from each other, are detachably connected to the corresponding support column 1 via assembly 2. The top surface of the horizontal support sleeve 701 near the end... Each position has several vertically opening mating holes 702, and each mating hole 702 is threaded with a locking stud 703. The purpose of this arrangement is to connect the adjacent support columns 1 on both sides by means of the support crossbar 7, so that the support column 1 can be protected against lateral impact by the support crossbar 7. Furthermore, by the transverse support column 705 of the support crossbar 7 sliding laterally along the transverse support sleeve 701 and tightening the locking stud 703, the transverse dimension of the support crossbar 7 can be quickly adjusted and locked. The transverse extension and retraction adjustment of the support crossbar 7 is simple and easy to implement.
[0023] See Figures 1-8 As shown, each assembly 2 includes a fixed base 204 and a mating stud 203. Several fixed bases 204 are vertically fixed to the front of the lower support sleeve 102, with adjacent fixed bases 204 on both sides facing each other laterally. Each fixed base 204 has a vertically formed mating groove 201, which is a through groove in the horizontal direction. The outer ends of the horizontal support sleeve 701 and the support column, which are far apart from each other, are respectively fixed with mating studs 203 in the horizontal direction. Each mating stud 203 passes through its corresponding mating groove 201 in a horizontal sliding engagement manner. The outer ends of the mating studs 203 extending out of their corresponding mating grooves are coaxially fitted with limit nuts 202. Furthermore, the limiting nuts 202 are all pressed against the outer side of the corresponding fixed seats 204. The reason for this arrangement is that by sliding the mating studs 203 of the assembly 2 from top to bottom into the mating grooves 201 and tightening the limiting nuts 202 to press them against the side surface of the fixed seats 204, the supporting crossbar 7 can be assembled between the fixed seats 204 on both sides. At the same time, by simply loosening the limiting nuts 202, the mating studs 203 can be moved upward and slid out of the mating grooves 201 from bottom to top. In this way, the supporting crossbar 7 can be quickly moved away from the fixed seats 204 on both sides. The assembly method of the supporting crossbar 7 between the fixed seats 204 on both sides is simple and easy to implement.
[0024] See Figures 1-7As shown, the following optimizations were made to this solution. Specifically, the guardrail component 4 is a steel pipe retractable guardrail. The lower ends of the opposing end faces of the supporting columns 1 on both sides are extended and fixedly connected to mounting wing seats 3. The two ends of the guardrail component 4 are rotatably mounted on the front of the corresponding mounting wing seats 3. This design allows the guardrail body to have good telescopic extension and retraction capabilities, facilitating its retraction and transport after use, and also adapting to different widths. Optionally, the bottom front of each supporting column 1 is fixed with a pair of limiting brackets 6, and a toe plate 5 is vertically inserted between the opposing limiting brackets 6 on both sides of the supporting columns 1. This design, with the help of the toe plates 5, protects the lower part near the ground, preventing accidental injury to personnel approaching the guardrail component 4. Furthermore, the limiting brackets 6 are all U-shaped or L-shaped brackets, and the two limiting brackets 6 of the same supporting column 1 have notches facing outwards, so that the limiting brackets 6 themselves have a good locking and holding effect, and can easily limit and lock the foot plate 5. Preferably, the foot plate 5 can be a foam board with reflective warning stickers attached to the surface.
[0025] See Figures 1-8 As shown, the lower support sleeve 102, the upper support column 101, the horizontal support sleeve 701, and the horizontal support rod are all rectangular tubes with one end open and the other end closed. This arrangement allows the top and bottom ends of the lower support sleeve 102 and the upper support column 101 to be attached to the ceiling and the ground respectively. It also prevents the upper support column 101 and the horizontal support rod from coming off from the bottom ends of the lower support sleeve 102 and the horizontal support sleeve 701 when they are retracted. Furthermore, the inner ends of the clamping stud 104 and the locking stud 703 are coaxially fixed with an elastic pressure block 106 and a buffer protrusion 706, respectively. The outer diameter of the elastic pressure block 106 is smaller than the diameter of the mounting hole 103, and the outer diameter of the buffer protrusion 706 is smaller than the diameter of the mating hole 702. This arrangement facilitates the improvement of stability after locking by pressing the elastic pressure block 106 and the buffer pressure block onto the surfaces of the upper support column 101 and the horizontal support column 705, respectively. It also helps to prevent damage to the surfaces of the upper support column 101 and the horizontal support column 705. Furthermore, the mating slots 201 are all vertically arranged waist-shaped slots with open tops. When the limiting nut 202 is tightened, the outer ends of the mating studs 203 do not exceed the corresponding limiting nut 202. Preferably, the distance between the two corresponding fixing seats 204 of the same lower support sleeve 102 is greater than the total thickness of the two limiting nuts 202. This arrangement facilitates the mating studs 203 to smoothly disengage and slide into the mating slots 201 from the top, and also helps to prevent mating studs 203 in close positions from interfering with each other.
[0026] Using the above structure, specifically for edge protection of openings such as floor windows, several supporting columns 1 are vertically installed. Each supporting column 1 has a vertical telescopic adjustment function, and retractable guardrail components 4 are installed between adjacent supporting columns 1. The vertical dimensions of the supporting columns 1 are adaptively adjusted according to the distance between the floor slab and the ceiling. The top and bottom ends of the supporting columns 1 serve as anchoring surfaces, allowing the guardrail components 4 to be positioned at the edge protection location. The installation of the guardrail components 4 at the edge protection location is simple and easy to implement, eliminating the need for expansion bolts or other components. It is also suitable for edge protection locations of different heights and dimensions. Highly functional, quick to install and dismantle, and flexible in relocation, the adjacent support columns 1 are detachably assembled with support crossbars 7 via assembly 2. These crossbars 7 have lateral telescopic adjustment capabilities, connecting adjacent support columns 1 together. This provides protection against lateral impacts, ensuring stable and reliable anchoring of the support columns 1. It is also suitable for edge protection positions of varying widths and sizes. Furthermore, the bottom front of each support column 1 is fixed with pairs of limit seats 6, and toe plates 5 are vertically inserted between adjacent limit seats 6 on both sides. These toe plates 5 provide protection for the lower part near the ground. The guardrail assembly 4 is designed to provide protection and prevent accidental injury to personnel when approaching it. Furthermore, the vertical dimension of the support column 1 can be quickly adjusted and locked by the vertical extension and retraction of the upper support column 101 along the lower support sleeve 102 and tightening the clamping stud 104. This vertical adjustment method is simple and easy to implement, facilitating both the adjustment of the support column 1 to the appropriate size and the subsequent loosening and quick retraction of the upper support column 101 for removal. Similarly, the horizontal support column 705 of the support crossbar 7 can be horizontally extended and retracted along the horizontal support sleeve 701 and locked by tightening the locking stud 703. The lateral dimension can be quickly adjusted and locked. The lateral extension and retraction adjustment of the support crossbar 7 is simple and easy to implement. It is convenient to adjust the lateral extension and retraction of the support crossbar 7 to the size that meets the needs of use. It is also convenient to quickly retract the horizontal support column 705 after loosening the locking stud 703 and then remove it. Furthermore, by sliding the mating stud 203 of the disassembly and assembly component 2 from top to bottom into the mating groove 201 and tightening the limit nut 202 to press it against the side surface of the fixed seat 204, the support crossbar 7 can be assembled between the fixed seats 204 on both sides. At the same time, by simply loosening the limit nut 202, the mating stud 203 can be moved upward and slid out of the mating groove 201 from bottom to top. In this way, the support crossbar 7 can be quickly removed between the fixed seats 204 on both sides.The assembly method of the supporting crossbar 7 between the two fixing seats 204 is simple and easy to implement. This facilitates the quick assembly of the supporting crossbar 7 between the fixing seats 204 on both sides, enhancing the connection between the adjacent supporting columns 1 on both sides. It also facilitates the quick disassembly of the supporting crossbar 7 for the disassembly and reuse of the supporting columns 1 and the guardrail assembly 4.
[0027] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. A quick-install, non-drilling telescopic edge protection railing, comprising a support post (1), a railing assembly (4), and a support crossbar (7), characterized in that: The support column (1) is provided in several ways and is placed vertically. At the same time, the adjacent support column (1) is provided with a telescopic guardrail assembly (4) so that the guardrail assembly (4) is set in the edge protection position by using the top and bottom of the support column (1) as the anchor support surface. Each of the adjacent support columns (1) is detachably assembled with several support crossbars (7) via a disassembly assembly (2), and the support crossbars (7) have a lateral telescopic adjustment function to provide protection against lateral impact forces for the support columns (1) through the support crossbars (7).
2. The quick-install telescopic edge protection railing without drilling according to claim 1, characterized in that: The guardrail assembly (4) is specifically a steel pipe telescopic guardrail. The lower part of the opposite end face of the supporting column (1) on both sides is extended and fixed with mounting wing (3). The two ends of the guardrail assembly (4) are respectively rotatably installed on the front of the corresponding mounting wing (3).
3. The quick-install telescopic edge protection railing without drilling according to claim 1, characterized in that: The front bottom of each of the supporting column members (1) is fixed with a pair of limit seats (6), and a foot plate (5) is vertically placed between the limit seats (6) of each of the two supporting column members (1).
4. The quick-install telescopic edge protection railing without drilling according to claim 3, characterized in that: The limiting brackets (6) are all U-shaped or L-shaped brackets, and the notches of the two limiting brackets (6) of the same supporting column (1) are facing outward.
5. A quick-install telescopic edge protection railing without drilling according to any one of claims 1-4, characterized in that: Each of the supporting column components (1) includes a lower supporting sleeve (102) and an upper supporting column (101). The lower supporting sleeves (102) are all vertically arranged, and the guardrail components (4) are all assembled between the adjacent lower supporting sleeves (102) on both sides. The inner circumference of the lower supporting sleeve (102) is vertically slidably fitted with the upper supporting rod that can reciprocate up and down. The upper front part of the lower supporting sleeve (102) is provided with a number of mounting holes (103) along the longitudinal direction. The mounting holes (103) are all through holes, and the mounting holes (103) are all threaded with a clamping stud (104) along the longitudinal direction.
6. The quick-install telescopic edge protection railing without drilling according to claim 5, characterized in that: Each of the supporting horizontal members (7) includes a horizontal supporting sleeve (701) and a horizontal supporting rod. The inner circumference of the horizontal supporting sleeve (701) is slidably fitted with the horizontal supporting rod, which is capable of reciprocating laterally. The outer ends of the horizontal supporting sleeve (701) and the horizontal supporting rod, which are far apart from each other, are detachably assembled with the corresponding supporting column member (1) through the disassembly assembly (2). The top surface of the horizontal supporting sleeve (701) is provided with several mating holes (702) at the position near the end. Each mating hole (702) is fitted with a locking stud (703) through a vertical thread.
7. The quick-install telescopic edge protection railing without drilling according to claim 6, characterized in that: The lower support sleeve (102), the upper support column (101), the horizontal support sleeve (701), and the horizontal support rod are all rectangular square tubes with one end open and the other end closed.
8. The quick-install telescopic edge protection railing without drilling according to claim 6, characterized in that: The inner ends of the clamping stud (104) and the locking stud (703) are respectively coaxially fixed with an elastic pressure block (106) and a buffer protrusion (706), and the outer diameter of the elastic pressure block (106) is smaller than the diameter of the mounting hole (103), and the outer diameter of the buffer protrusion (706) is smaller than the diameter of the mating hole (702).
9. A quick-install telescopic edge protection railing without drilling according to claim 6, 7 or 8, characterized in that: Each of the disassembly and assembly components (2) includes a fixed seat (204) and a mating stud (203). Several fixed seats (204) are vertically fixed at the front of the lower support sleeve (102), and the fixed seats (204) on both sides are respectively horizontally opposite to each other. Each fixed seat (204) is vertically provided with a mating groove (201), and the mating groove (201) is a through groove in the horizontal direction. The outer ends of the horizontal support sleeve (701) and the support column, which are far apart from each other, are respectively fixed with mating studs (203) in the horizontal direction. Each mating stud (203) passes through the corresponding mating groove (201) in a horizontal sliding fit. The outer ends of the mating studs (203) extending out of the corresponding mating groove are coaxially combined with limit nuts (202), and the limit nuts (202) are pressed against the outer side of the corresponding fixed seat (204).
10. The quick-install telescopic edge protection railing without drilling according to claim 9, characterized in that: The mating slots (201) are all vertically arranged waist-shaped slots with open tops, and when the limiting nut (202) is tightened, the outer ends of the mating studs (203) do not exceed the corresponding limiting nut (202).