A fall arrest rail assembly
By designing modular guardrail units that can be spliced together and anti-fall guardrail components with mounting screws, the problem of fixed guardrail length has been solved, enabling flexible adjustment of the protection range and density, and improving protection performance and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI CONSTR ENG NINTH CONSTR GRP CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-12
AI Technical Summary
The existing guardrails have a fixed length, making it difficult to adjust the protection range according to on-site needs, and the protection density cannot be adjusted, resulting in insufficient protection performance.
Design a fall arrestor guardrail assembly that forms a grid protection structure through several guardrail units and assembly screws. Combined with splicing components, the length and density can be flexibly adjusted, and the connection stability is improved by locking the connectors and assembly screws.
It enables flexible adjustment of guardrail length and protection density, improves protection performance and connection stability, reduces the risk of guardrail loosening, and adapts to the needs of different protection areas.
Smart Images

Figure CN224351665U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of guardrail technology, specifically to a fall-prevention guardrail component. Background Technology
[0002] Guardrails refer to fence structures used to provide protection, isolation, support, or guidance. They exist in all aspects of our lives and work. However, existing guardrails have the following drawbacks in actual use.
[0003] First, due to the complexity of the installation environment, the length of existing guardrails is often limited, making it difficult to adaptively adjust the protection range according to the on-site protection needs.
[0004] Secondly, the density of protective fences is often pre-set, making it inconvenient to adjust according to the site environment. If the density is too low, it can easily lead to insufficient protective performance.
[0005] Therefore, a fall arrestor guardrail component is proposed. Utility Model Content
[0006] The purpose of this utility model is to provide a fall arrest guardrail assembly. This device, by selecting the required number of guardrail units and assembly screws, can flexibly adjust the length of the guardrail structure, improving the flexibility and adaptability of the device. On the other hand, it can form a grid protection structure with different protection densities, which can not only flexibly adapt to different protection areas, but also strengthen the horizontal splicing of guardrail units, reduce the risk of guardrail loosening, and improve protection performance.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a fall arrest guardrail assembly, comprising: a plurality of guardrail units, each guardrail unit including a first U-shaped frame and second U-shaped frames distributed perpendicularly to the first U-shaped frame, wherein the second U-shaped frames are foldable relative to the first U-shaped frames; a splicing assembly is provided between two adjacent first U-shaped frames for horizontal splicing of the guardrail units; a plurality of connectors provided on the second U-shaped frames, and assembly screws that horizontally penetrate the plurality of connectors, wherein the assembly screws and the plurality of vertical second U-shaped frames form a grid protection structure and are used for locking after the guardrail units are spliced.
[0008] Preferably, an adjustment component is provided at the connection between the first U-shaped frame and the second U-shaped frame for switching their shapes; the adjustment component includes a drive shaft fixed to the end of the first U-shaped frame and drive grooves respectively opened on both sides of the end of the second U-shaped frame and sleeved on the outer periphery of the drive shaft, wherein each drive groove is composed of a straight section and an inclined section connected at the beginning and end.
[0009] Preferably, each set of splicing components includes a plurality of card frames and a plurality of card strips respectively fixed on the opposite sides of two adjacent first U-shaped frames, wherein the relatively distributed card frames and card strips are adapted for assembly; a plurality of slots respectively opened on each card frame and card strip and interlocking with each other; and a locking plug for synchronously limiting the plurality of card frames and the plurality of card strips.
[0010] Preferably, the locking plug includes an assembly plate, on which insert plates are fixedly fixed to a plurality of slots; mounting holes are respectively opened at both ends of the assembly plate, and bolts are provided in the mounting holes; and two screw holes are opened on the outer side wall of the card frame, which are used for locking a plurality of card frames and a plurality of card strips when the bolts pass through the corresponding mounting holes and are threadedly connected to the corresponding screw holes.
[0011] Preferably, each of the assembly screws includes a smooth rod, wherein the smooth rod can laterally pass through several connectors at the same height; a limiting block and a screw body respectively disposed at both ends of the smooth rod; and a nut threadedly connected to the screw body, for reinforcing and locking after several guardrail units are spliced together.
[0012] Preferably, protective plates are also provided on both sides of several guardrail units. Each of the protective plates has several first through holes longitudinally opened on the rear side. The several first through holes correspond one-to-one with several connecting parts. When the assembly screw and several vertical second U-shaped frames form a grid protection structure, the two protective plates are used to form side panels.
[0013] Preferably, each of the first U-shaped frames is further fixed with an i-shaped frame at one end near the second U-shaped frame. The i-shaped frame has a second through hole on each side. When the second U-shaped frame is perpendicular to the first U-shaped frame, the connector placed at the bottom of the second U-shaped frame can be built into the i-shaped frame and connected to the second through hole on the i-shaped frame.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention enables the horizontal assembly of several individual guardrail units through assembly components, and establishes a grid protection structure through the locking operation of several connectors and assembly screws. The optional number of assembly screws can form grid protection structures with different protection densities, ensuring the protective performance of the guardrail while flexibly adapting to different protection areas. In addition, the locking process of the connectors and assembly screws can further strengthen the horizontal splicing of the guardrail units, improve the stability of the connection, and reduce the risk of the guardrail loosening. Attached Figure Description
[0016] Figure 1 This is a first-view three-dimensional structural diagram of the assembled state of this utility model;
[0017] Figure 2This is a second-view three-dimensional structural diagram of the assembled state of this utility model;
[0018] Figure 3 This is a first-view perspective three-dimensional structural diagram of the present invention after disassembly;
[0019] Figure 4 This is a second-view perspective three-dimensional structural diagram of the disassembled present invention;
[0020] Figure 5 This is a first-view three-dimensional structural diagram of a partially enlarged guardrail unit of this utility model;
[0021] Figure 6 This is a magnified second-view three-dimensional structural diagram of a single guardrail unit of this utility model;
[0022] Figure 7 for Figure 6 A schematic diagram of the cross-sectional structure.
[0023] In the diagram: 111, First U-shaped frame; 112, Second U-shaped frame; 113, Transmission groove; 114, Transmission shaft; 211, Frame; 212, Strip; 213, Slot; 214, Assembly plate; 215, Insert plate; 216, Mounting hole; 217, Bolt; 311, Connector; 312, U-shaped frame; 313, Smooth rod; 314, Limiting block; 315, Screw body; 316, Nut; 317, Protective plate. Detailed Implementation
[0024] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The various embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0025] Example 1
[0026] Please see Figures 1 to 7The present invention preferably provides the following technical solution: a fall arrest guardrail assembly, comprising: a plurality of guardrail units, each guardrail unit including a first U-shaped frame 111 and a second U-shaped frame 112 distributed perpendicularly to the first U-shaped frame 111, wherein the second U-shaped frame 112 can be folded relative to the first U-shaped frame 111; a splicing assembly is provided between two adjacent first U-shaped frames 111 for horizontal splicing of guardrail units; a plurality of connectors 311 provided on the second U-shaped frames 112, and assembly screws that transversely penetrate the plurality of connectors 311, wherein the assembly screws and the plurality of vertical second U-shaped frames 112 form a grid protection structure and are used for locking after the guardrail units are spliced.
[0027] This application addresses the problems of existing guardrails in practical use and designs a fall-prevention guardrail. Specifically, it addresses this from two aspects: First, considering the insufficient protective effect of existing guardrails, the fall-prevention guardrail structure designed in this application specifically combines... Figure 1 , 2 As shown, it consists of several guardrail units forming a basic frame. The guardrail units are horizontally spliced together by splicing components to form the guardrail base plate. The mesh protection structure is formed by the locking action of several connectors 311 and several assembly screws to complete the establishment of the guardrail enclosure. In this process, the locking process of connectors 311 and assembly screws can further strengthen the horizontal splicing of guardrail units, improve the stability of the connection, reduce the risk of guardrail loosening, and improve safety performance.
[0028] Secondly, considering the diversity of installation environments, and the limited length of existing guardrails, it is difficult to adaptively adjust the protection range according to the on-site protection needs. The fall arrest guardrail structure designed in this application allows for the selection of the number of individual guardrail units as needed, so as to flexibly adjust the length of the fall arrest guardrail structure. This design not only satisfies the need for flexible length adjustment and improves the flexibility and adaptability of the device, but also achieves convenient and efficient installation, saving time and manpower. In addition, the folding characteristics of the first U-shaped frame 111 and the second U-shaped frame 112 where a single guardrail unit is located provide convenience for transportation and storage.
[0029] Example 2
[0030] As another embodiment of the present invention, an adjustment member is provided at the connection between the first U-shaped frame 111 and the second U-shaped frame 112 for switching the form of the two; the adjustment member includes a drive shaft 114 fixed at the end of the first U-shaped frame 111, and a drive groove 113 respectively opened on both sides of the end of the second U-shaped frame 112 and sleeved on the outer periphery of the drive shaft 114, wherein each drive groove 113 is composed of a straight section and an inclined section connected at the beginning and end.
[0031] Combination Figure 5 , 6 As shown in Figures 7 and 8, each transmission groove 113 consists of a straight section and an inclined section that are connected at the beginning and end;
[0032] Taking the transition from vertical to folded state as an example, such as Figure 7 As shown, when the second U-shaped frame 112 is moved to the right, the transmission shaft 114 gradually moves from the straight section of the transmission groove 113 into the inclined section of the transmission groove 113. Then, when the second U-shaped frame 112 is folded towards the first U-shaped frame 111, the transmission shaft 114 gradually moves to the end of the inclined section where the transmission groove 113 is located and completes the folding operation of the first U-shaped frame 111 and the second U-shaped frame 112.
[0033] Conversely, the first U-shaped frame 111 and the second U-shaped frame 112 switch to their vertical states, as shown below. Figure 7 In this state, the first U-shaped frame 111 and the second U-shaped frame 112 can maintain a stable assembly state due to the clamping action at their ends.
[0034] Example 3
[0035] In other embodiments of this utility model, each set of splicing components includes a plurality of card frames 211 and a plurality of card strips 212 respectively fixed on opposite sides of two adjacent first U-shaped frames 111, wherein the card frames 211 and card strips 212 are adapted to be assembled; a plurality of slots 213 respectively opened on each card frame 211 and card strip 212 and connected to each other; and a locking plug for synchronously limiting the plurality of card frames 211 and card strips 212; further, the locking plug includes an assembly plate 214, the assembly plate 214 having insert plates 215 respectively fixed on the plurality of slots 213; mounting holes 216 respectively opened at both ends of the assembly plate 214, the mounting holes 216 having bolts 217; and two screw holes opened on the side wall of the card frame 211 located on the outside, which are used to lock the plurality of card frames 211 and card strips 212 when the bolts 217 pass through the corresponding mounting holes 216 and are threadedly connected to the corresponding screw holes.
[0036] like Figure 3 , 4 As shown, the single assembly component provided in this application includes several card frames 211 and several card strips 212, and the several card frames 211 and several card strips 212 are respectively fixed on the opposite sides of two adjacent first U-shaped frames 111 and correspond one to one. Taking this embodiment as an example, there are seven card frames 211 and seven card strips 212.
[0037] Each card frame 211 and card strip 212 has a number of corresponding slots 213. The assembly plate 214 is fixed with a number of insert plates 215 corresponding to the number of slots 213. When the insert plates 215 are inserted into the slots 213, the horizontal limiting process of the card frames 211 and card strips 212 can be realized, and the horizontal limiting process of the first U-shaped frames 111 can be further realized.
[0038] As mentioned above, when several assembly screws pass through several connectors 311 and are locked, the horizontal assembly of several guardrail units can be reinforced. In this embodiment, to further reinforce the assembly, bolts 217 are respectively provided at both ends of the assembly plate 214, such as... Figure 3 , 4 As shown, when bolts 217 are passed through the assembly plate 214 and threadedly connected to the screw holes on the outer frame 211, the horizontal assembly of several guardrail units can be further reinforced, improving the protective performance of the guardrail. The installation effect is as follows: Figure 1 , 2 As shown.
[0039] Example 4
[0040] In another embodiment of this utility model, each assembly screw includes a smooth rod 313, wherein the smooth rod 313 can pass through a number of connecting pieces 311 at the same height laterally; a limiting block 314 and a screw body 315 are respectively provided at both ends of the smooth rod 313; and a nut 316 threadedly connected to the screw body 315, for reinforcing and locking after several guardrail units are spliced together.
[0041] In this embodiment, a plurality of connectors 311 are arranged longitudinally on the second U-shaped frame 112, such as Figure 1 , 2 As shown, several connectors 311 at the same height are aligned one by one. Therefore, when the smooth rod 313, where a single assembly screw is located, passes through several connectors 311 at the same height, the limiting block 314 fixed at one end of the smooth rod 313 is limited to the outside of one of the connectors 311 located on the outside, while the screw body 315 fixed at the other end of the smooth rod 313 passes through another connector 311 located on the outside and is locked by the nut 316, thus completing the assembly and reinforcement process.
[0042] Example 5
[0043] As another embodiment of this utility model, protective plates 317 are respectively provided on both sides of several guardrail units. Each protective plate 317 has several first through holes longitudinally opened on the rear side. The several first through holes correspond one-to-one with several connecting parts 311. When the assembly screw and several vertical second U-shaped frames 112 form a grid protection structure, the two protective plates 317 are used to form side panels.
[0044] In this embodiment, two protective plates 317 are assembled on both sides of several guardrail units. When the mounting screw is located on the smooth rod 313, which laterally passes through several connectors 311, it can simultaneously pass through the first through hole opened on the rear side of the protective plate 317 to form a side panel. Figure 3 , 4 As shown.
[0045] Example 6
[0046] In another embodiment of this utility model, each first U-shaped frame 111 is further fixed with an i-shaped frame 312 at one end near the second U-shaped frame 112. The i-shaped frame 312 has a second through hole on each side. When the second U-shaped frame 112 is perpendicular to the first U-shaped frame 111, the connector 311 placed at the bottom of the second U-shaped frame 112 can be built into the i-shaped frame 312 and connected to the second through hole on the i-shaped frame 312.
[0047] like Figure 1 , 6 As shown in Figure 7, in order to further reinforce the first U-shaped frame 111 and the second U-shaped frame 112, when the second U-shaped frame 112 is perpendicular to the first U-shaped frame 111, the lowest connecting piece 311 fixed on the back side of the second U-shaped frame 112 can be placed inside the C-shaped frame 312 at the end of the first U-shaped frame 111 and correspond to the second through hole opened on the C-shaped frame 312. When the bottom connecting pieces 311 are limited under the action of the assembly screw, the assembly screw simultaneously locks the C-shaped frame 312 and the bottom connecting pieces 311 to fix the first U-shaped frame 111 and the second U-shaped frame 112 in a vertical state.
[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "fixation" and other terms should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part. There are various ways to install detachably, such as by using a plug-in and snap-fit method, or by using a bolt connection, etc.
[0049] The above description of the specific embodiments of this utility model is only used to further illustrate this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-essential improvements and adjustments made to this utility model by technical engineers based on the above description of the utility model shall fall within the scope of protection of this utility model.
Claims
1. A fall arrestor guardrail assembly, characterized in that... ,include: A plurality of guardrail units, each of the guardrail units including a first U-shaped frame (111) and a second U-shaped frame (112) distributed perpendicularly to the first U-shaped frame (111), wherein the second U-shaped frame (112) can be folded relative to the first U-shaped frame (111); A splicing component is provided between two adjacent first U-shaped frames (111) for horizontal splicing of individual guardrail units; A plurality of connectors (311) are provided on the second U-shaped frame (112), and assembly screws are respectively horizontally penetrating the plurality of connectors (311), wherein the assembly screws and the plurality of vertical second U-shaped frames (112) form a grid protection structure and are used for locking after the guardrail units are spliced together.
2. The fall arrestor assembly according to claim 1, characterized in that: An adjustment component is provided at the connection between the first U-shaped frame (111) and the second U-shaped frame (112) for switching their shapes; The adjusting element includes: The transmission shaft (114) is fixed at the end of the first U-shaped frame (111), and the transmission grooves (113) are respectively opened on both sides of the end of the second U-shaped frame (112) and sleeved on the outer periphery of the transmission shaft (114), wherein each transmission groove (113) is composed of a straight section and an inclined section that are connected at the beginning and end.
3. A fall arrestor guardrail assembly according to claim 1, characterized in that: Each set of splicing components includes: Several card frames (211) and several card strips (212) are fixed on opposite sides of two adjacent first U-shaped frames (111), wherein the card frames (211) and card strips (212) are adapted to be assembled; several slots (213) are respectively opened on each of the card frames (211) and card strips (212) and are connected to each other; And a locking strip for synchronously limiting several card frames (211) and several card strips (212).
4. A fall arrestor guardrail assembly according to claim 3, characterized in that: The locking socket includes: Assembly plate (214), wherein a plurality of slots (213) are respectively fixed with insert plates (215); Mounting holes (216) are respectively opened at both ends of the assembly plate (214), and bolts (217) are provided in the mounting holes (216); And two screw holes opened on the side wall of the outer frame (211), which are used for locking several frames (211) and several strips (212) when the bolt (217) passes through the corresponding mounting hole (216) and is threaded to the corresponding screw hole.
5. A fall arrestor assembly according to claim 1, characterized in that: Each of the assembly screws includes: A light rod (313), wherein the light rod (313) can laterally pass through a plurality of connectors (311) at the same height; Limiting blocks (314) and screw bodies (315) are respectively installed at both ends of the optical rod (313); And a nut (316) threadedly connected to the screw body (315) for reinforcement and locking after several guardrail units are spliced together.
6. A fall arrestor guardrail assembly according to claim 1, characterized in that: Several guardrail units are also provided with protective plates (317) on both sides. Each of the protective plates (317) has several first through holes longitudinally opened on the rear side. The several first through holes correspond one-to-one with several connecting parts (311). When the assembly screw and several vertical second U-shaped frames (112) form a grid protection structure, the two protective plates (317) are used to form side panels.
7. A fall arrestor guardrail assembly according to claim 6, characterized in that: Each of the first U-shaped frames (111) is also fixed with an i-shaped frame (312) at one end near the second U-shaped frame (112). The i-shaped frame (312) has a second through hole on each side. When the second U-shaped frame (112) is perpendicular to the first U-shaped frame (111), the connector (311) placed at the bottom of the second U-shaped frame (112) can be built into the i-shaped frame (312) and connected to the second through hole on the i-shaped frame (312).