A modular guardrail for building construction
By introducing a splicing assembly with limit rods and return springs, as well as a support assembly with support plates and embedded rods into the spliced guardrail, the problems of bolt and nut wear and column instability are solved, enabling quick assembly and disassembly and ensuring stability in windy conditions, thus improving the practicality of the guardrail.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN TOBACCO CO YIBIN CO
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-30
AI Technical Summary
Existing modular guardrails are prone to jamming during the assembly and disassembly of posts and crossbars due to wear on bolts and nuts. Furthermore, the posts are not stable enough in strong winds, affecting their service life and practicality.
The use of splicing components, with limit rods and return springs, enables quick assembly and disassembly of columns and crossbars, avoiding the use of bolts and nuts. Support components are used to increase the stability of the columns, and support plates and embedded rods are used to fix them in windy conditions.
It improves the efficiency of disassembly and assembly of columns and crossbars, extends the service life of splicing components, maintains the stability of columns in windy conditions, and expands the scope of application.
Smart Images

Figure CN224432073U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building construction technology, and in particular relates to a splicing guardrail for building construction. Background Technology
[0002] Construction refers to the production activities during the implementation phase of an engineering project, encompassing the construction of various buildings (residential buildings, libraries, schools, etc.). During use, external factors can damage building materials, reducing their safety. Therefore, construction workers are required to repair buildings and enhance safety. To prevent people from accidentally entering construction sites, guardrails are installed outside the construction area to isolate and warn of potential hazards.
[0003] A search revealed a modular construction guardrail disclosed in patent publication number CN217400545U. The guardrail comprises two sets of posts, with a protective plate at the center of each post. A base plate is fixed to the bottom of each post. The protective plate is rotatably connected to the posts via connecting components on one side. Two sets of sliding grooves are provided on both sides of the protective plate's surface. A matching slider is slidably connected inside each groove. A vertical rod is fixed to the side of each slider away from the protective plate. A guardrail for increasing the height of the protective plate is fixed in the center of the two sets of vertical rods. A fixing component for securing the vertical rod is provided on the side of the protective plate near the vertical rod. This component allows for adjustment of the placement angle of the assembled guardrail body as needed, enabling the guardrail body to change its shape and increasing the height of the protective plate, thus facilitating adjustment of the overall height of the assembled guardrail body.
[0004] However, it still has the following drawbacks in practical use:
[0005] 1. Posts are installed on the upper surface of the base. A crossbar is connected between two adjacent posts. Bolts and nuts are used during the assembly and disassembly of the posts and crossbars. Tightening the bolts clockwise fixes the end of the crossbar to the side wall of the post, and tightening the nuts clockwise connects the nut threads to the bolt. Conversely, disassembling the posts and crossbars requires adjusting the position of the guardrail according to the construction site, which requires repeated assembly and disassembly of the posts and crossbars and repeated tightening of bolts and nuts. This will cause wear on the bolts and nuts, and may even cause them to jam due to stripped threads. This will affect the assembly and disassembly of the guardrail, reduce the service life of the bolts and nuts, and increase the frequency of bolt and nut replacement.
[0006] 2. The base is fixedly installed on the construction site, and the columns are installed on the base. Horizontal bars are installed between adjacent columns to enclose the construction site, preventing people from accidentally entering the construction site and being injured by falling materials. It also prevents the construction progress from being affected. However, since the columns are not reinforced, the columns will sway significantly during strong winds, and may even tip over, reducing the usability and practicality of the site.
[0007] To address these issues, we provide a modular guardrail for building construction. Utility Model Content
[0008] The purpose of this utility model is to provide a splicing guardrail for building construction. By setting splicing components, the posts and crossbars can be spliced without the use of bolts and nuts, avoiding thread stripping and jamming, facilitating the assembly and disassembly of posts and crossbars, and by setting support components, the posts are reinforced, increasing their stability, expanding the range of applicable environments, and improving practicality, thereby solving the technical problems mentioned in the background art.
[0009] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0010] This utility model relates to a splicing guardrail for building construction, comprising a base, a positioning sleeve fixed to the upper surface of the base having a post on its upper surface, a connecting sleeve connected to the side wall of the post, and splicing components on the side walls of both the positioning sleeve and the connecting sleeve. Each splicing component includes a limiting rod, with the limiting rod penetrating the side walls of both the positioning sleeve and the connecting sleeve. A collar is sleeved on the circumferential side wall of the limiting rod, and a return spring connected to the side wall of the collar is sleeved on the circumferential side wall of the limiting rod. The sidewalls of both the positioning sleeve and the connecting sleeve are connected to the return spring. The handle fixed to the end of the limiting rod is located on the side near the collar. A support assembly is provided on the sidewall of the column. The support assembly includes a connecting seat connected to the sidewall of the column. Rotation holes are provided on both sides of the connecting seat. A support plate is provided on the connecting seat. Shaft pins symmetrically fixed to both sides of the support plate are rotatably connected to the rotation holes. Nuts threaded on the circumferential sidewall of the shaft pins abut against the sidewall of the connecting seat.
[0011] The present invention is further configured such that a base plate is provided below the base, and supports fixed at the four corners of the upper surface of the base plate are connected to the lower surface of the base, and embedded rods are fixed at the four corners of the lower surface of the base plate.
[0012] The present invention is further configured such that a fixing rod is fixedly connected to the upper surface of the base plate, and a counterweight plate is sleeved on the peripheral side wall of the fixing rod.
[0013] The present invention is further configured such that the connecting rod fixed to the lower end of the column is inserted into the inside of the positioning sleeve, and the limiting rod passes through the connecting rod.
[0014] The present invention is further configured such that a crossbar is provided between the two columns, and a plug rod is fixedly connected to both ends of the crossbar, with the limiting rod passing through the plug rod.
[0015] The present invention is further configured such that a protruding rod is connected to the side wall of both the positioning sleeve and the connecting sleeve, and a limiting block rotatably connected to the peripheral side wall of the protruding rod abuts against the end of the limiting rod, and the handle passes through the limiting block.
[0016] The present invention is further configured such that a protective sleeve fitted on the peripheral wall of the limiting rod is located outside the collar, and a sleeve seat is fitted on the peripheral wall of the protective sleeve, and both the positioning sleeve and the connecting sleeve are connected to the sleeve seat.
[0017] The present invention is further configured such that a fixing plate is fixedly connected to the lower surface of the support plate, and pre-embedded rods are fixedly connected to the four corners of the lower surface of the fixing plate.
[0018] This utility model has the following beneficial effects:
[0019] 1. This utility model, by setting up a splicing component, pushes the handle, compresses the return spring, and moves the handle and the limiting rod until the handle disengages from the limiting block. Rotating the limiting block releases the fixation of the limiting rod position. Pulling the handle stretches the return spring, and the limiting rod moves until the fixation of the connecting rod and the insertion rod position is released. Pulling the column separates the column and the base. Pulling the crossbar separates the crossbar and the column. No bolts and nuts are needed for fixed connection, avoiding thread stripping and jamming, increasing the service life of the splicing component, reducing the frequency of splicing component replacement, and facilitating the disassembly and assembly of the base, column, and crossbar.
[0020] 2. This utility model, by setting up a support component, releases the fixation of the shaft pin position by turning the nut counterclockwise, rotates the support plate, and the support plate moves in an arc around the shaft pin. At the same time, the position of the fixing plate is adjusted until the fixing plate contacts the construction site, and the pre-embedded rod on the fixing plate is pre-buried in the ground. Turning the nut clockwise fixes the position of the support plate, supports the column, increases the stability of the column, is suitable for construction sites in windy environments, and improves practicality. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0022] Figure 1 A three-dimensional illustration of a modular guardrail used in building construction. Figure 1 ;
[0023] Figure 2 A three-dimensional illustration of a modular guardrail used in building construction. Figure 2 ;
[0024] Figure 3 This is a cross-sectional schematic diagram of the column, connecting rod, positioning sleeve, and splicing assembly;
[0025] Figure 4 This is a cross-sectional schematic diagram of the crossbar, insert, connecting sleeve, and splicing assembly;
[0026] Figure 5 This is a schematic diagram showing the connection between the base, bottom plate, and counterweight plate.
[0027] The attached diagram lists the components represented by each number as follows:
[0028] 1-Base, 101-Base plate, 101a-Support, 101b-Fixing rod, 101c-Counterweight plate, 102-Positioning sleeve, 103-Column, 103a-Connecting rod, 104-Horizontal bar, 104-Insertion rod, 105-Connecting sleeve, 2-Assembly assembly, 201-Limiting rod, 201a-Loop, 201b-Reset spring, 201c-Handle, 202-Protective cylinder, 202a-Sleeve seat, 203-Protruding rod, 203a-Limiting block, 3-Support assembly, 301-Support plate, 301a-Fixing plate, 301b-Shaft pin, 301c-Nut, 302-Embedded rod, 303-Connecting seat. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0030] Example 1
[0031] Please see Figure 1 , Figure 2 and Figure 5 This utility model is a splicing guardrail for building construction, including a base 1, a positioning sleeve 102, a post 103 and a connecting sleeve 105. The positioning sleeve 102 is used to determine the positional relationship between the base 1 and the post 103, so as to facilitate the assembly between the post 103 and the base 1.
[0032] Specifically, the upper surface of the positioning sleeve 102, which is fixed to the upper surface of the base 1, is provided with a column 103, and a connecting sleeve 105 is connected to the side wall of the column 103.
[0033] Furthermore, a base plate 101 is provided below the base 1. Supports 101a fixed at the four corners of the upper surface of the base plate 101 are connected to the lower surface of the base 1. Embedded rods 302 are fixed at the four corners of the lower surface of the base plate 101. A fixing rod 101b is fixed at the upper surface of the base plate 101. A counterweight plate 101c is sleeved on the periphery of the fixing rod 101b. The counterweight plate 101c is used to increase the weight of the base plate 101 and improve the flatness and stability of the base plate 101 on the construction site.
[0034] The operation process of this embodiment is as follows: the pre-embedded rod 302 on the lower surface of the base plate 101 is pre-embedded in the ground, the base plate 101 is fixed on the construction site, the connecting rod 103a is inserted into the inside of the positioning sleeve 102, the column 103 is connected to the base 1, the insertion rod 104a is inserted into the inside of the connecting sleeve 105, and the crossbar 104 is connected to the column 103.
[0035] Example 2
[0036] Please see Figure 1 , Figure 3 and Figure 4 Based on the first specific embodiment, a splicing component 2 is provided. The splicing component 2 includes a limiting rod 201, a collar 201a, a return spring 201b, and a handle 201c. By utilizing the elasticity of the return spring 201b, the position of the limiting rod 201 is adjusted to fix or unlock the positions of the connecting rod 103a and the insert rod 104a, and to disassemble and assemble the base 1, the column 103, and the crossbar 104 without the need for bolts and nuts, thus avoiding thread stripping and jamming, reducing the frequency of replacing the splicing component 2, and facilitating the disassembly and assembly between the base 1, the column 103, and the crossbar 104.
[0037] Specifically, a limiting rod 201 passes through the side wall of both the positioning sleeve 102 and the connecting sleeve 105. A collar 201a is sleeved on the peripheral side wall of the limiting rod 201. A return spring 201b connected to the side wall of the collar 201a is sleeved on the peripheral side wall of the limiting rod 201. The side walls of both the positioning sleeve 102 and the connecting sleeve 105 are connected to the return spring 201b. The handle 201c fixed to the end of the limiting rod 201 is located on the side close to the collar 201a.
[0038] Furthermore, the connecting rod 103a fixed to the lower end of the column 103 is inserted into the interior of the positioning sleeve 102. The limiting rod 201 passes through the connecting rod 103a. A crossbar 104 is provided between the two columns 103. Insert rods 104a are fixed to both ends of the crossbar 104. The limiting rod 201 passes through the insert rods 104a. A protruding rod 203 is connected to the side wall of both the positioning sleeve 102 and the connecting sleeve 105. A limiting block 203a rotatably connected to the peripheral side wall of the protruding rod 203 abuts against the end of the limiting rod 201. A handle 201c passes through the limiting block 203a. A protective cylinder 202 sleeved on the peripheral side wall of the limiting rod 201 is located outside the collar 201a. A sleeve seat 202a is sleeved on the peripheral side wall of the protective cylinder 202. The positioning sleeve 102 and the connecting sleeve 105 are both connected to the sleeve seat 202a.
[0039] The operation process of this embodiment is as follows: Push the handle 201c, the limiting rod 201 moves, the collar 201a moves, and the return spring 201b is compressed until the handle 201c disengages from the limiting block 203a. Rotate the limiting block 203a, and the limiting block 203a moves in an arc around the convex rod 203, releasing the fixation of the position of the limiting rod 201. Pull the handle 201c, and the return spring 201b is stretched, and the limiting rod 201 moves until it contacts the fixing of the position of the connecting rod 103a and the insert rod 104a by the limiting rod 201. Pull the column 103 to separate the column 103 and the base 1. Pull the column crossbar 104 to separate the crossbar 104 and the column 103. Conversely, assemble the base 1 and the column 103, and assemble the crossbar 104 and the column 103.
[0040] Example 3
[0041] Please see Figure 1 and Figure 2 Based on specific embodiments one and two, a support component 3 is provided. The support component 3 includes a support plate 301, a shaft pin 301b, a nut 301c, and a connecting seat 303. The position of the support plate 301 is adjusted by rotating it so that the support plate 301 tilts downward to support the column 103, improve the stability of the column 103, prevent the column 103 from being blown over by strong winds, expand the range of applicable environments, and improve practicality.
[0042] Specifically, a connecting seat 303 is connected to the side wall of the column 103. Rotation holes are provided on both sides of the connecting seat 303. A support plate 301 is provided on the connecting seat 303. Shaft pins 301b symmetrically fixed on both sides of the support plate 301 are rotatably connected to the rotation holes. Nuts 301c threaded on the peripheral side wall of the shaft pins 301b abut against the side wall of the connecting seat 303.
[0043] Furthermore, a fixing plate 301a is fixedly connected to the lower surface of the support plate 301, and embedded rods 302 are fixedly connected to the four corners of the lower surface of the fixing plate 301a.
[0044] The operation process of this embodiment is as follows: Turn the nut 301c counterclockwise to release the nut 301c from fixing the position of the shaft pin 301b, apply external force to the support plate 301, and the support plate 301 moves in an arc around the shaft pin 301b. The fixing plate 301a moves accordingly until the fixing plate 301a contacts the construction site. The pre-embedded rod 302 on the fixing plate 301a is pre-embedded in the ground. Turn the nut 301c clockwise to fix the position of the shaft pin 301b.
[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
Claims
1. A modular guardrail for building construction, comprising a base (1), wherein a positioning sleeve (102) fixedly connected to the upper surface of the base (1) has a post (103) on its upper surface, and a connecting sleeve (105) is connected to the side wall of the post (103), characterized in that: Both the positioning sleeve (102) and the connecting sleeve (105) are provided with splicing components (2) on their side walls. The splicing components (2) include a limiting rod (201). The limiting rod (201) passes through the side walls of both the positioning sleeve (102) and the connecting sleeve (105). A collar (201a) is sleeved on the peripheral side wall of the limiting rod (201). A return spring (201b) connected to the side wall of the collar (201a) is sleeved on the peripheral side wall of the limiting rod (201). The side walls of both the positioning sleeve (102) and the connecting sleeve (105) are connected to the return spring (201b). The handle (201c) fixed to the end of the limiting rod (201) is located on the side close to the collar (201a). The support assembly (3) is provided on the side wall of the column (103). The support assembly (3) includes a connecting seat (303) connected to the side wall of the column (103). Rotation holes are provided on both sides of the connecting seat (303). A support plate (301) is provided on the connecting seat (303). Shaft pins (301b) symmetrically fixed on both sides of the support plate (301) are rotatably connected to the rotation holes. Nuts (301c) threaded on the peripheral side wall of the shaft pins (301b) abut against the side wall of the connecting seat (303).
2. The splicing guardrail for building construction according to claim 1, characterized in that: The base (1) is provided with a base plate (101) below it. The supports (101a) fixed at the four corners of the upper surface of the base plate (101) are connected to the lower surface of the base (1). The four corners of the lower surface of the base plate (101) are all fixed with embedded rods (302).
3. The splicing guardrail for building construction according to claim 2, characterized in that: A fixing rod (101b) is fixedly connected to the upper surface of the base plate (101), and a counterweight plate (101c) is sleeved on the peripheral side wall of the fixing rod (101b).
4. The splicing guardrail for building construction according to claim 1, characterized in that: The connecting rod (103a) fixed to the lower end of the column (103) is inserted into the inside of the positioning sleeve (102), and the limiting rod (201) passes through the connecting rod (103a).
5. A splicing guardrail for building construction according to claim 1, characterized in that: A crossbar (104) is provided between the two columns (103), and a plug rod (104a) is fixed to both ends of the crossbar (104), and the limiting rod (201) passes through the plug rod (104a).
6. The splicing guardrail for building construction according to claim 1, characterized in that: Both the positioning sleeve (102) and the connecting sleeve (105) are connected to a protruding rod (203). A limiting block (203a) rotatably connected to the peripheral side wall of the protruding rod (203) abuts against the end of the limiting rod (201). The handle (201c) passes through the limiting block (203a).
7. A splicing guardrail for building construction according to claim 6, characterized in that: The protective cylinder (202) sleeved on the peripheral wall of the limiting rod (201) is located outside the collar (201a). A sleeve seat (202a) is sleeved on the peripheral wall of the protective cylinder (202). The positioning sleeve (102) and the connecting sleeve (105) are both connected to the sleeve seat (202a).
8. A splicing guardrail for building construction according to claim 1, characterized in that: A fixing plate (301a) is fixedly connected to the lower surface of the support plate (301), and embedded rods (302) are fixedly connected to the four corners of the lower surface of the fixing plate (301a).