Foldable guardrail

Abstract

The utility model discloses a foldable guardrail, and relates to the technical field of guardrails. The protective fence comprises a stand column, two sets of first supporting plates are symmetrically and fixedly connected to the positions, close to the center, of the two side ends of the stand column, a rotating shaft is rotationally connected between the two first supporting plates, a protective fence body is fixedly connected to the outer ring of the rotating shaft, and a rotating handle is rotationally connected to the end, away from the rotating shaft, of one first supporting plate. The bottom end of the rotating handle penetrates through the first supporting plates and is fixedly connected with the rotating shaft, second supporting plates are symmetrically and fixedly connected to the position, close to the center, of the end, away from the stand column, of the protective fence body, and a lead screw is rotationally connected between the two second supporting plates. According to the safety guardrail, the pull ring is lifted upwards, then under the mutual cooperation of the inserting shaft, the inserting groove, the spring, the first supporting plate and the rotating shaft, the work of limiting the protective guardrail body is achieved, and then the problem that a safety guardrail is integrated and needs to occupy a large space when being carried after being used is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of guardrails, in particular to a foldable guardrail. Background Technique

[0002] Work safety is an important part of the engineering field, and the protection of the edge is the key point in management; it will directly affect the life, health and property safety of workers. For the protection of the edge openings of engineering projects, it is often a part with relatively large potential safety hazards and is the key and difficult point in safety management. It is necessary to place edge guardrails to play a warning role. The guardrail is a construction equipment used to protect the boundary during building construction;

[0003] When emergency repairs are required for road facilities due to safety failures, some temporarily installed safety guardrails will be used. Such guardrails mainly play the role of isolation and warning. However, most safety guardrails are integral. Since such guardrails are not installed permanently, they need to be carried and reused after use. When carrying them, they require a large amount of space. At the same time, the height of construction safety guardrails is generally fixed, and it is inconvenient to adjust the placement height of the guardrail according to the specific occasion, making the guardrail have certain limitations in use. In view of the above problems, the inventor proposes a foldable guardrail to solve the above problems. Content of the Utility Model

[0004] In order to solve the problems that safety guardrails are all integral and require a large amount of space when carried after use, and the height of construction safety guardrails is generally fixed and it is inconvenient to adjust the placement height of the guardrail according to the specific occasion; the purpose of the utility model is to provide a foldable guardrail.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: A foldable guardrail includes columns. On both sides of each column near the center, two groups of first support plates are symmetrically and fixedly connected. A rotating shaft is rotatably connected between the two first support plates. An outer ring of the rotating shaft is fixedly connected with a guardrail body. One end of one of the first support plates far from the rotating shaft is rotatably connected with a turning handle, and the bottom end of the turning handle penetrates through the first support plate and is fixedly connected with the rotating shaft. One end of the guardrail body far from the column near the center is symmetrically and fixedly connected with second support plates. A lead screw is rotatably connected between the two second support plates. An elevating guard frame is threadedly rotated on an outer ring of the lead screw.

[0006] Preferably, a plurality of limiting shafts are evenly distributed at the bottom end of the elevating guard frame, and the limiting shafts are slidably inserted into the guardrail body. One end of one of the second support plates far from the lead screw is rotatably connected with a turntable, and the top end of the turntable penetrates through the second support plate and is fixedly connected with the lead screw.

[0007] Preferably, a plug shaft is slidably inserted on one side of the handlebar near the column. The top end of the plug shaft is fixedly connected with a pull ring. A slot is opened at the top end of one of the support plates near the handlebar, and the slot is adapted to the plug shaft.

[0008] Preferably, the bottom end of the pull ring is fixedly connected with a spring, and the bottom end of the spring is fixedly connected with the handlebar. The spring is sleeved on the outer ring of the plug shaft.

[0009] Preferably, a lighting lamp is fixedly connected to the center of the top end of the column, a bottom plate is fixedly connected to the bottom end of the column, and a reflector is symmetrically and fixedly connected to the front and rear ends of the column.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. In the present utility model, by lifting the pull ring upward, and then through the mutual cooperation among the plug shaft, the slot, the spring, the first support plate and the rotating shaft, the work of limiting the protection fence body is realized, thereby solving the problem that the safety fences are all integrated and occupy a large space when being carried after use;

[0012] 2. In the present utility model, by rotating the turntable, and then through the mutual cooperation among the lead screw, the lifting protection frame and the limiting shaft, the effect of adjusting the height of the lifting protection frame is realized, thereby solving the problem that the height of the construction safety fence is generally fixed and it is inconvenient to adjust the placement height of the protection fence according to the specific occasion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2 It is a schematic diagram of the column structure of the present utility model.

[0016] Figure 3 It is a schematic diagram of the lifting protection frame structure of the present utility model.

[0017] Figure 4 For the present utility model Figure 2 The enlarged structure schematic diagram at A.

[0018] In the figure: 1. Column; 11. Reflector; 13. Base plate; 14. First support plate; 15. Rotating shaft; 16. Spring; 17. Rotating handle; 18. Insertion shaft; 19. Insertion slot; 110. Pulling ring; 2. Fence body; 21. Lighting lamp; 3. Lifting protection frame; 31. Second support plate; 32. Lead screw; 33. Turntable; 34. Limit shaft. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment: As Figures 1-4 shown, the present invention provides a technical solution: a foldable guardrail, including a column 1. Two groups of first support plates 14 are symmetrically and fixedly connected near the center of both ends of the column 1. A rotating shaft 15 is rotatably connected between the two first support plates 14. A fence body 2 is fixedly connected to the outer circle of the rotating shaft 15. One end of the first support plate 14 away from the rotating shaft 15 is rotatably connected to a rotating handle 17, and the bottom end of the rotating handle 17 passes through the first support plate 14 and is fixedly connected to the rotating shaft 15. One end of the fence body 2 away from the column 1 near the center is symmetrically and fixedly connected with two second support plates 31. A lead screw 32 is rotatably connected between the two second support plates 31. A lifting protection frame 3 is threadedly rotatably connected to the outer circle of the lead screw 32.

[0021] A number of limit shafts 34 are evenly distributed at the bottom end of the lifting protection frame 3, and the limit shafts 34 are slidably inserted and connected to the fence body 2.

[0022] By adopting the above technical solution, the limit shafts 34 are arranged at the bottom end of the lifting protection frame 3 to cooperate with the fence body 2 to perform the limiting work on it.

[0023] One end of the second support plate 31 away from the lead screw 32 is rotatably connected to a turntable 33, and the top end of the turntable 33 passes through the second support plate 31 and is fixedly connected to the lead screw 32.

[0024] By adopting the above technical solution, the turntable 33 is rotated, so that the fixedly connected lead screw 32 rotates.

[0025] An insertion shaft 18 is slidably inserted into one side of the rotating handle 17 near the column 1, and a pulling ring 110 is fixedly connected to the top end of the insertion shaft 18.

[0026] By adopting the above technical solution, the pulling ring 110 is arranged at the top end of the insertion shaft 18 to facilitate the user to pull up the insertion shaft 18.

[0027] One of the top ends of the support plate 14 is provided with a slot 19 near the handlebar 17, and the slot 19 is adapted to the insertion shaft 18.

[0028] By adopting the above technical solution, the slot 19 is set to be adapted to the insertion shaft 18 so that the insertion shaft 18 can be inserted into the slot 19.

[0029] The bottom end of the pull ring 110 is fixedly connected with a spring 16, and the bottom end of the spring 16 is fixedly connected with the handlebar 17. The spring 16 is sleeved on the outer circle of the insertion shaft 18.

[0030] By adopting the above technical solution, the spring 16 is arranged at the bottom end of the pull ring 110 to realize the reset work of the insertion shaft 18.

[0031] A lighting lamp 21 is fixedly connected to the center of the top end of the column 1.

[0032] By adopting the above technical solution, the lighting lamp 21 is arranged at the top end of the column 1 so that this device can work normally at night.

[0033] The bottom end of the column 1 is fixedly connected with a bottom plate 13, and the front and rear ends of the column 1 are symmetrically and fixedly connected with a reflector 11.

[0034] By adopting the above technical solution, the reflectors 11 are symmetrically arranged at the front and rear ends of the column 1 to remind passers-by at night.

[0035] Working principle: When this device is folded and stored, by lifting the pull ring 110 upward, the fixedly connected insertion shaft 18 is lifted, thereby releasing the limiting work on the guardrail body 2. At this time, the two guardrail bodies 2 can be flipped towards each other, thus realizing the folding work of the two guardrail bodies 2. When installing the two guardrail bodies 2, when the insertion shaft 18 and the slot 19 are at the same horizontal level, the acting force on the pull ring 110 can be released, and then under the action of the spring 16, the insertion shaft 18 is inserted into the slot 19, thereby realizing the limiting work on the guardrail body 2, and further solving the problem that safety guardrails are all integrated and occupy a large space when being carried after use;

[0036] By rotating the turntable 33, the fixedly connected lead screw 32 is rotated, so that the lifting guardrail 3 connected by thread rotation moves up and down under the action of a plurality of limiting shafts 34. And a limiting disk is arranged at the bottom end of one of the limiting shafts 34 to prevent the lifting guardrail 3 from detaching from the guardrail body 2, thereby realizing the effect of adjusting the height of the lifting guardrail 3, and further solving the problem that the height of the construction safety guardrail is generally fixed and it is inconvenient to adjust the placement height of the guardrail according to the specific occasion.

[0037] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these modifications and variations.

Claims

1. A foldable guardrail, comprising a column (1), characterized in that: Two sets of support plates (14) are symmetrically fixedly connected near the center of both side ends of the column (1), a rotating shaft (15) is rotatably connected between the two support plates (14), and the outer ring of the rotating shaft (15) is fixedly connected to the guardrail body (2), one end of one of the support plates (14) away from the rotating shaft (15) is rotatably connected to a turning handle (17), and the bottom end of the turning handle (17) passes through the support plate (14) and is fixedly connected to the rotating shaft (15), and the end of the guardrail body (2) away from the column (1) is symmetrically fixedly connected to a support plate (31) near the center, and a screw rod (32) is rotatably connected between the two support plates (31), and the outer ring of the screw rod (32) is rotatably connected to the lifting protection frame (3).

2. A foldable guardrail as claimed in claim 1, characterized in that: A plurality of limiting shafts (34) are evenly distributed at the bottom end of the lifting protection frame (3), and the limiting shafts (34) are connected to the protection fence body (2) by sliding insertion.

3. A foldable guardrail as claimed in claim 1, characterized in that: One end of one of the support plates (31) away from the screw rod (32) is rotatably connected to a turntable (33), and the top end of the turntable (33) passes through the support plate (31) and is fixedly connected to the screw rod (32).

4. A foldable guardrail as claimed in claim 1, characterized in that: An insertion shaft (18) is slidably inserted into a side of the turning handle (17) close to the upright column (1), and a pull ring (110) is fixedly connected to the top of the insertion shaft (18).

5. A foldable guardrail as claimed in claim 4, characterized in that: A slot (19) is provided at the top of one of the support plates (14) near the turning handle (17), and the slot (19) is adapted to fit the insertion shaft (18).

6. A foldable guardrail as claimed in claim 4, characterized in that: The bottom end of the pull ring (110) is fixedly connected to a spring (16), and the bottom end of the spring (16) is fixedly connected to the turning handle (17), and the spring (16) is sleeved on the outer ring of the insertion shaft (18).

7. A foldable guardrail as claimed in claim 1, characterized in that: A lighting lamp (21) is fixedly connected at the center of the top end of the column (1).

8. A foldable guardrail as claimed in claim 1, characterized in that: The bottom end of the column (1) is fixedly connected to a bottom plate (13), and the front and rear ends of the column (1) are symmetrically fixedly connected to a reflective plate (11).

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