A guardrail with a multi-angle adjustment mechanism

Abstract

The present invention relates to the technical field of safety protection, in particular to a guardrail with a multi-angle adjustment mechanism, including a first longitudinally arranged support pipe, a second longitudinally arranged support pipe and an externally threaded adjustment pipe. The guardrail with a multi-angle adjustment mechanism of the present invention is composed of a first longitudinally arranged support pipe and a second longitudinally arranged support pipe which are threadedly connected through an externally threaded adjustment pipe. Arc-shaped adjustment grooves with an internal lateral adjustment mechanism are provided on both sides of the first longitudinally arranged support pipe and the second longitudinally arranged support pipe. A middle adjustment locking block is fixed on the outside of the externally threaded adjustment pipe, so that the structure of the guardrail can be adjusted; the adjustment method is more diverse and the applicable range is wider.

Description

Technical Field

[0001] The present invention relates to the technical field of safety protection, and in particular to a guardrail with a multi-angle adjustment mechanism. Background Art

[0002] A guardrail is also called a protective railing. Guardrails are mainly used for the protection of personal safety and equipment in places such as residences, roads, commercial areas, and public places. Guardrails can be seen everywhere in our lives. Most guardrails are made of metal, such as stainless steel, round steel pipes, square steel pipes, profiled steel sheets, and iron wires. They are manufactured through surface treatment processes: fully automatic electrostatic powder spraying (i.e., plastic spraying) or painting. With the development of technology, in recent years, aluminum alloy guardrails installed by plugging and assembling have also become popular.

[0003] Traditional guardrails are mostly of an integral fixed structure and are manufactured by a customized processing and production method. Once the processing and production are completed, the overall structure cannot be adjusted, and it cannot adapt to different installation environments and installation methods, resulting in a very single and limited scope of application. Moreover, some of the adjustable guardrails on the market have very poor stability, resulting in insecure installation after adjustment and a significant reduction in safety. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to provide an improved guardrail with a multi-angle adjustment mechanism to solve the problems that after the processing and production of the current guardrail are completed, the overall structure cannot be adjusted, it cannot adapt to different installation environments and installation methods, resulting in a very single and limited scope of application, and some of the adjustable guardrails on the market have very poor stability, resulting in insecure installation after adjustment and a significant reduction in safety.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a guardrail with a multi-angle adjustment mechanism, including a first longitudinally arranged support pipe, a second longitudinally arranged support pipe, and an externally threaded adjustment pipe. A middle adjustment locking block is fixedly connected to the middle of the outer side of the externally threaded adjustment pipe. Arc-shaped adjustment grooves with built-in lateral adjustment mechanisms are symmetrically arranged on both sides of the first longitudinally arranged support pipe and the second longitudinally arranged support pipe.

[0006] Internal threaded adjustment blind holes matching the externally threaded adjustment pipe are opened at the lower end of the first longitudinally arranged support pipe and the upper end of the second longitudinally arranged support pipe. The two ends of the externally threaded adjustment pipe are respectively screwed into the internal threaded adjustment blind holes to be threadedly connected to the first longitudinally arranged support pipe and the second longitudinally arranged support pipe.

[0007] The described lateral adjustment mechanism includes a longitudinally installed longitudinal adjustment screw rod within the arc-shaped adjustment groove, an internally threaded lifting tube threadedly sleeved outside the longitudinal adjustment screw rod, a first folding link rod movably assembled inside the arc-shaped adjustment groove through a lateral rotating shaft, a second folding link rod movably connected to the outside of the internally threaded lifting tube, and an integrally structured assembly plate fixed to the outer sides of the first folding link rod and the second folding link rod. The tops of the first folding link rod and the second folding link rod are movably connected through a lateral rotating shaft.

[0008] The described middle adjustment locking block includes an external adjustment block fixed to the outer side of the externally threaded adjustment tube, a middle adjustment block movably assembled inside the external adjustment block, longitudinal assembly blind holes opened on both sides of the upper and lower ends of the external adjustment block, an L-shaped internal adjustment hole opened on the outer side of the external adjustment block, an internal adjustment rod inserted at the inner-side opening position of the internal adjustment hole, and an external adjustment rod inserted at the outer-side opening position of the internal adjustment hole. The external adjustment rod is in transmission connection with the longitudinal adjustment screw rod through the internal adjustment rod.

[0009] On both sides of the upper and lower ends of the described middle adjustment locking block, externally opened external assembly grooves are provided. Inside the external assembly grooves, built-in flipping brackets are movably assembled through rotating shafts. On the outer side of the built-in flipping brackets, there is an integrally structured external limit cover plate. On the inner side of the external limit cover plate, a lateral hoop with a loading and unloading notch on one side is fixedly connected.

[0010] On the outer side top of the described external adjustment rod, an internal hexagonal adjustment blind hole is opened. On the inner side top of the external adjustment rod, on both top ends of the internal adjustment rod, and on the top end of the longitudinal adjustment screw rod, there are integrally conical tooth heads that mesh with each other.

[0011] Arc-shaped installation card slots for installing bolts are opened on the outer walls on both sides of the described assembly plate.

[0012] At the upper end of the first longitudinal support tube and the lower end of the second longitudinal support tube, a telescopic top closing cover plate is elastically connected.

[0013] The described telescopic top closing cover plate includes a telescopic frame inserted inside the upper opening of the first longitudinal support tube and the lower opening of the second longitudinal support tube, a return spring installed inside the telescopic frame, an external closing plate, and a movable installation bracket fixed to the connection surface of the external closing plate. The outer side end of the telescopic frame is movably connected to the external closing plate through a transverse assembly shaft passing through the movable installation bracket.

[0014] The outer side surface of the described external closing plate and the inner walls of the upper opening of the first longitudinal support tube and the lower opening of the second longitudinal support tube are both obliquely arranged sealing surfaces that match each other.

[0015] The beneficial effects of the present invention are:

[0016] (1) A guardrail with a multi-angle adjustment mechanism of the present invention is composed of a first longitudinal support tube and a second longitudinal support tube connected by an external thread adjustment tube, arc-shaped adjustment grooves with built-in lateral adjustment mechanisms are opened on both sides of the first longitudinal support tube and the second longitudinal support tube, and a middle adjustment locking block is fixed on the outside of the external thread adjustment tube, so that the structure of the guardrail is adjustable;

[0017] (2) External limit cover plates are installed on both sides of the middle adjustment locking block. The external limit cover plates can not only cooperate with the assembly plate to close the arc-shaped adjustment grooves on both sides to improve the safety of the lateral adjustment mechanism, but also adjust and lock the external threaded adjustment tube to improve the safety and durability of the adjustment mechanism;

[0018] (3) A telescopic top closing cover is elastically connected to the opening position of the upper end of the first longitudinal support tube and the lower end of the second longitudinal support tube, which can maintain the surface flatness after the lateral adjustment mechanism is flipped and adjusted, increase the support area with the guardrail handrail and the ground, facilitate the flipping and adjustment of the lateral adjustment mechanism, and be more convenient to use;

[0019] (4) An external adjustment rod and an internal adjustment rod are arranged inside the middle adjustment locking block and are transmission-connected with the longitudinal adjustment screw. People can independently control the lateral adjustment mechanisms at different positions as needed, making the adjustment method more diverse and the scope of application wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is an internal sectional view of the middle adjustment locking block of the present invention.

[0023] Figure 3 It is an internal cross-sectional view of the lateral adjustment mechanism of the present invention. DETAILED DESCRIPTION

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0025] Figure 1 , Figure 2 and Figure 3A guardrail with a multi-angle adjustment mechanism is shown, comprising a first longitudinal support tube 1, a second longitudinal support tube 2 and an externally threaded adjustment tube 3, a middle adjustment locking block is fixedly connected to the middle of the outer side surface of the externally threaded adjustment tube 3, and arc-shaped adjustment grooves 4 with built-in lateral adjustment mechanisms are symmetrically provided on both sides of the first longitudinal support tube 1 and the second longitudinal support tube 2.

[0026] Furthermore, in order to facilitate height adjustment, an internal threaded adjustment blind hole 5 that cooperates with the external threaded adjustment tube 3 is provided at the lower end of the first longitudinal support tube 1 and the upper end of the second longitudinal support tube 2. The two ends of the external threaded adjustment tube 3 are respectively screwed into the internal threaded adjustment blind hole 5 and threadedly connected with the first longitudinal support tube 1 and the second longitudinal support tube 2.

[0027] Furthermore, in order to facilitate lateral folding and flipping, the lateral adjustment mechanism includes a longitudinal adjustment screw 6 longitudinally installed in the arc-shaped adjustment groove 4, an internally threaded lifting tube 7 threadedly sleeved on the outside of the longitudinal adjustment screw 6, a first folding link 8 movably assembled on the inside of the arc-shaped adjustment groove 4 through a lateral rotating shaft, a second folding link 9 movably connected to the outside of the internally threaded lifting tube 7, and an integrated structural assembly plate 10 fixed on the outer sides of the first folding link 8 and the second folding link 9. The top ends of the first folding link 8 and the second folding link 9 are movably connected through a lateral rotating shaft.

[0028] Furthermore, in order to cooperate with the internal transmission adjustment, the middle adjustment locking block includes an external adjustment block 11 fixed on the outer side of the external threaded adjustment tube 3, a middle adjustment block movably assembled inside the external adjustment block 11, longitudinal assembly blind holes opened on both sides of the upper and lower ends of the external adjustment block 11, an L-shaped internal adjustment hole 12 opened on the outer side of the external adjustment block 11, an internal adjustment rod 13 inserted in the inner opening position of the internal adjustment hole 12 and an external adjustment rod 14 inserted in the outer opening position of the internal adjustment hole 12, and the external adjustment rod 14 is transmission-connected to the longitudinal adjustment screw 6 through the internal adjustment rod 13.

[0029] The longitudinal adjusting screw rod 6 passes through the middle adjusting block and is fixedly connected to the middle adjusting block.

[0030] Furthermore, in order to facilitate the angle locking of the middle adjustment locking block, external assembly grooves 15 with side openings are provided on the upper and lower ends of both sides of the middle adjustment locking block, and a built-in flip bracket 16 is movably assembled inside the external assembly groove 15 through a rotating shaft. The outer surface of the built-in flip bracket 16 has an integral external limit cover plate 17, and the inner surface of the external limit cover plate 17 is fixedly connected to a lateral hoop 18 with a loading and unloading notch on one side.

[0031] Further, in order to cooperate with external control and internal transmission, an internal hexagonal adjusting blind hole is provided at the outer top end of the external adjusting rod 14, and integrally tapered tooth heads that mesh with each other are provided at the inner top end of the external adjusting rod 14, at both top ends of the inner adjusting rod 13, and at the top end of the longitudinally arranged adjusting screw rod 6.

[0032] Further, in order to cooperate with fixed assembly, arc-shaped installation card slots 19 for installing bolts are provided on the outer walls on both sides of the assembly plate 10.

[0033] Further, in order to close the openings at both ends without affecting flipping, a telescopic top closing cover plate is elastically connected to the upper end of the first longitudinally arranged support tube 1 and the lower end of the second longitudinally arranged support tube 2.

[0034] Further, in order to cooperate with movable assembly and elastic reset, the telescopic top closing cover plate includes a telescopic frame 20 inserted into the upper opening of the first longitudinally arranged support tube 1 and the lower opening of the second longitudinally arranged support tube 2, a reset spring 21 installed inside the telescopic frame 20, an external closing plate 22, and a movable installation bracket 23 fixed on the connection surface of the external closing plate 22. The outer end of the telescopic frame 20 is movably connected to the external closing plate 22 through a transverse assembly shaft passing through the movable installation bracket 23.

[0035] Internal limit plates that cooperate with the reset spring 21 are fixed inside the upper opening of the first longitudinally arranged support tube 1 and the lower opening of the second longitudinally arranged support tube 2. The reset spring 21 drives the telescopic frame 20 to elastically reset inward by being clamped and fixed to the internal limit plate at one end.

[0036] Further, in order to improve the assembly degree, the outer surface of the external closing plate 22 and the inner walls of the upper opening of the first longitudinally arranged support tube 1 and the lower opening of the second longitudinally arranged support tube 2 are all inclined sealing surfaces that cooperate with each other.

[0037] Embodiment: People turn the external limit cover plate 17 outward so that it disengages from the arc-shaped adjusting groove 4, and then the middle adjusting locking block can be rotated to adjust the distance between the first longitudinally arranged support tube 1 and the second longitudinally arranged support tube 2. Arc-shaped limit card slots are provided on both sides of the middle adjusting locking block, and internal limit blocks that cooperate with the arc-shaped limit card slots are provided on the side wall of the flipping bracket 16. In this way, when the external limit cover plate 17 is turned outward, the internal limit blocks leave the arc-shaped limit card slots.

[0038] People control the external adjusting rod 14 by inserting a hex wrench into the internal hexagonal adjusting blind hole, and then control the longitudinally arranged adjusting screw rod 6 through the internal adjusting rod 13. The longitudinally arranged adjusting screw rod 6 drives the internal threaded lifting tube 7 and the second folding link 9 to lift and lower by rotation, thereby changing the angle of the first folding link 8.

[0039] A guardrail with a multi-angle adjustment mechanism according to the present invention is composed of a first longitudinally arranged support pipe 1 and a second longitudinally arranged support pipe 2 which are threadedly connected through an externally threaded adjustment pipe 3. Arc-shaped adjustment grooves 4 with built-in lateral adjustment mechanisms are provided on both sides of the first longitudinally arranged support pipe 1 and the second longitudinally arranged support pipe 2. A middle adjustment locking block is fixed on the outside of the externally threaded adjustment pipe 3, so that the structure of the guardrail is adjustable; external limit cover plates 17 are installed on both sides of the middle adjustment locking block. Through the external limit cover plates 17, not only can the arc-shaped adjustment grooves 4 on both sides be closed in cooperation with the assembly plate 10 to improve the safety of the lateral adjustment mechanism, but also the externally threaded adjustment pipe 3 can be adjusted and locked to improve the safety and durability of the adjustment mechanism; at the opening positions of the upper end of the first longitudinally arranged support pipe 1 and the lower end of the second longitudinally arranged support pipe 2, a telescopic top closing cover plate is elastically connected, which can keep the surface flatness after the lateral adjustment mechanism is flipped and adjusted, improve the support area with the guardrail handrail and the ground, facilitate the flipping and adjustment of the lateral adjustment mechanism, and is more convenient to use; an external adjustment rod 14 and an internal adjustment rod 13 are arranged inside the middle adjustment locking block and are in transmission connection with the longitudinally arranged adjustment screw rod 6. People can independently control the lateral adjustment mechanisms at different positions according to needs, making the adjustment methods more diverse and the application range more extensive.

[0040] Inspired by the ideal embodiments of the present invention described above, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A guardrail with a multi-angle adjustment mechanism, comprising a first longitudinally arranged support pipe (1), a second longitudinally arranged support pipe (2) and an externally threaded adjustment pipe (3), characterized in that: A central adjusting and locking block is fixedly connected to the middle part of the outer side surface of the external thread adjusting pipe (3). Arc-shaped adjusting grooves (4) with built-in lateral adjusting mechanisms are symmetrically formed on both sides of the first longitudinally arranged support pipe (1) and the second longitudinally arranged support pipe (2). Internal thread adjusting blind holes (5) that match the external thread adjusting pipe (3) are formed at the lower end of the first longitudinally arranged support pipe (1) and the upper end of the second longitudinally arranged support pipe (2). Both ends of the external thread adjusting pipe (3) are respectively screwed into the internal thread adjusting blind holes (5) to be in threaded connection with the first longitudinally arranged support pipe (1) and the second longitudinally arranged support pipe (2). The lateral adjusting mechanism includes a longitudinally arranged adjusting lead screw (6) longitudinally installed in the arc-shaped adjusting groove (4), an internal thread lifting pipe (7) threadedly sleeved outside the longitudinally arranged adjusting lead screw (6), a first folding link (8) movably assembled inside the arc-shaped adjusting groove (4) through a lateral rotating shaft, a second folding link (9) movably connected to the outside of the internal thread lifting pipe (7), and an integrally structured assembly plate (10) fixed on the outer side surfaces of the first folding link (8) and the second folding link (9). The tops of the first folding link (8) and the second folding link (9) are movably connected through a lateral rotating shaft. The central adjusting and locking block includes an external adjusting block (11) fixed on the outer side surface of the external thread adjusting pipe (3), a central adjusting block movably assembled inside the external adjusting block (11), longitudinal assembly blind holes formed on both sides of the upper and lower ends of the external adjusting block (11), an L-shaped internal adjusting hole (12) formed on the outer side surface of the external adjusting block (11), an internal adjusting rod (13) inserted into the inner opening position of the internal adjusting hole (12), and an external adjusting rod (14) inserted into the outer opening position of the internal adjusting hole (12). The external adjusting rod (14) is in transmission connection with the longitudinally arranged adjusting lead screw (6) through the internal adjusting rod (13). External assembly grooves (15) with lateral openings are formed on both sides of the upper and lower ends of the central adjusting and locking block. An internal flipping bracket (16) is movably assembled inside the external assembly groove (15) through a rotating shaft. An integrally structured external limiting cover plate (17) is provided on the outer side surface of the internal flipping bracket (16). A lateral hoop (18) with a loading and unloading notch is fixedly connected to the inner side surface of the external limiting cover plate (17). An internal hexagonal adjusting blind hole is formed at the outer top end of the external adjusting rod (14). Integrally formed tapered tooth heads that mesh with each other are provided at the inner top end of the external adjusting rod (14), both top ends of the internal adjusting rod (13), and the top end of the longitudinally arranged adjusting lead screw (6). Arc-shaped installation card slots (19) for installing bolts are formed on the outer side walls of both sides of the assembly plate (10).

2. The guardrail with a multi-angle adjustment mechanism according to claim 1, characterized in that: The upper end of the first longitudinally arranged support pipe (1) and the lower end of the second longitudinally arranged support pipe (2) are elastically connected with a telescopic top closing cover plate.

3. The guardrail with a multi-angle adjustment mechanism according to claim 2, characterized in that: The telescopic top closing cover plate described above includes a telescopic frame (20) inserted into the upper opening of the first longitudinally arranged support pipe (1) and the lower opening of the second longitudinally arranged support pipe (2), a return spring (21) installed inside the telescopic frame (20), an external closing plate (22), and a movable mounting bracket (23) fixed on the connection surface of the external closing plate (22). The outer end of the telescopic frame (20) is movably connected to the external closing plate (22) through a transverse assembly shaft penetrating through the movable mounting bracket (23).

4. The guardrail with a multi-angle adjustment mechanism according to claim 3, characterized in that: The outer side surface of the external closing plate (22) and the inner walls of the upper opening of the first longitudinally arranged support pipe (1) and the lower opening of the second longitudinally arranged support pipe (2) are both inclined sealing surfaces that cooperate with each other.

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