Telescopic guardrail device

Abstract

The utility model discloses a telescopic guardrail device which comprises a first vertical frame and a second vertical frame, a first protective strip and a second protective strip are hinged to sliding sleeves of the first vertical frame and the second vertical frame respectively, and a third protective strip is hinged to a first connecting strip and a second connecting strip. The third protection strip is hinged to the first protection strip and the second protection strip, the end of the positioning screw abuts against the side of the first vertical frame and the side of the second vertical frame, and supporting mechanisms used for supporting are arranged in the first vertical frame and the second vertical frame. Through the design of structures such as a first vertical frame, a second vertical frame, a sliding sleeve and a first protective strip, and through cooperative use of the first vertical frame, the second vertical frame, the first protective strip, a second protective strip, a third protective strip, a first connecting strip and a second connecting strip, the guardrail is simple in structure, small in overall size and convenient and fast to unfold and fold; and the guardrail can be conveniently carried and transported.

Description

Technical Field

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

[0002] Guardrails are fences that are mainly used for protective isolation during construction to prevent people from getting close. During construction, it is usually necessary to protect the edge openings in order to ensure the safety of construction workers and achieve regularization and standardization of construction.

[0003] The common guardrails on the market currently have complex structures, large sizes, inflexible operations, and are not easy to transport. They are only suitable for a single type of site, cannot be used for edge protection of flat and inclined surfaces at the same time, cannot be freely adjusted and used as the site changes, and have poor applicability. Therefore, we need to propose a retractable guardrail device. Utility Model Content

[0004] The purpose of the utility model is to provide a retractable guardrail device, which makes the guardrail have a simple structure, a small overall size, and convenient and quick deployment and storage operations, so as to facilitate the handling and transportation of the guardrail, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A telescopic guardrail device comprises a first frame and a second frame, wherein a sliding sleeve is slidably mounted on the first frame and the second frame, wherein a first protection bar and a second protection bar are respectively hinged on the sliding sleeves of the first frame and the second frame, wherein the first protection bar and the second protection bar are hinged, wherein one end of the first protection bar is hinged on the side of the second frame, wherein one end of the second protection bar is hinged on the side of the first frame, wherein a first connecting bar and a second connecting bar are respectively hinged on the sides of the first frame and the second frame, wherein a third protection bar is hinged on the first connecting bar and the second connecting bar, wherein the third protection bar is hinged on the first protection bar and the second protection bar;

[0007] A positioning screw is threadedly mounted on the sliding sleeve, and the end of the positioning screw is pressed against the side of the first stand and the second stand. The first stand and the second stand are both provided with a supporting mechanism for supporting.

[0008] Preferably, the supporting mechanism includes a first positioning block, a supporting rod, a second positioning block and a supporting block, and a storing groove is opened in the first vertical frame and the second vertical frame. The first positioning block damping slides in the storing groove, the supporting rod damping is hinged at the end of the first positioning block, the second positioning block is fixedly connected to the end of the supporting rod, the second positioning block damping is inserted in the storing groove, and the supporting block is fixedly connected to the side of the second positioning block in the first vertical frame.

[0009] Preferably, a plurality of sets of universal balls are fixedly connected to the inner side of the sliding sleeve, a plurality of sets of positioning grooves for the sliding of the universal balls are provided in the first stand and the second stand, and the balls of the universal balls are in contact with the inner walls of the positioning grooves.

[0010] Preferably, reflective strips are provided on the sides of the first stand and the second stand.

[0011] Preferably, a mounting seat is fixedly installed on the side of the first stand, a rotating seat is movably installed on the side of the mounting seat, an adjusting block is movably installed in the rotating seat, a threaded rod is threadedly installed in the adjusting block, and a fixing ring is fixedly connected to the threaded rod.

[0012] Preferably, a side portion of the second stand is fixedly connected with a holder for positioning the fixing ring, and an avoidance hole is provided on the holder.

[0013] Preferably, warning lights are provided on the tops of the first stand and the second stand.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Through the design of the first stand, the second stand, the sliding sleeve and the first protective strip, and the coordinated use of the first stand, the second stand, the first protective strip, the second protective strip, the third protective strip, the first connecting strip and the second connecting strip, the guardrail has a simple structure, a small overall size, and convenient unfolding and storage operations, so that the guardrail can be easily carried and transported;

[0016] 2. Through the design of the supporting mechanism, the stability of the guardrail after placement can be improved when used on flat and sloping sites, and the positioning screws can be tightened on the frame to achieve fixation between the first frame and the second frame to prevent the first frame and the second frame from moving and shrinking, so that the guardrail can be stably placed on the edge protection of flat and sloping sites, which can improve the applicability of the guardrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural schematic diagrams of the utility model;

[0018] Figure 2 This is the second structural diagram of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the first stand of the utility model;

[0020] Figure 4 It is a partial structural schematic diagram of the second stand of the utility model;

[0021] Figure 5This is a schematic diagram of the structure of the mounting seat, adjustment block and fixing ring of the utility model.

[0022] Figure 6 It is a schematic structural diagram of the first protection strip, the second protection strip and the third protection strip of the utility model when they are separated.

[0023] In the figure: 1. first stand; 2. second stand; 3. sliding sleeve; 4. universal wheel; 5. support block; 6. reflective strip; 7. warning light; 8. first protective strip; 9. second protective strip; 10. third protective strip; 11. first connecting strip; 12. second connecting strip; 13. mounting seat; 14. rotating seat; 15. adjusting block; 16. threaded rod; 17. fixing ring; 18. clamping seat; 19. universal ball; 20. positioning slot; 21. positioning screw; 22. storage slot; 23. first positioning block; 24. support rod; 25. second positioning block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-6 The utility model provides a retractable guardrail device, including a first frame 1 and a second frame 2, a sliding sleeve 3 is slidably installed on the first frame 1 and the second frame 2, a first protection bar 8 and a second protection bar 9 are hinged on the sliding sleeve 3 of the first frame 1 and the second frame 2 respectively, the first protection bar 8 and the second protection bar 9 are hinged, one end of the first protection bar 8 is hinged to the side of the second frame 2, one end of the second protection bar 9 is hinged to the side of the first frame 1, the first frame 1 and the second frame 2 are respectively hinged with a first connecting bar 11 and a second connecting bar 12, the first connecting bar 11 and the second connecting bar 12 are hinged with a third protection bar 10, and the third protection bar 10 is hinged on the first protection bar 8 and the second protection bar 9.

[0026] A positioning screw 21 is threadedly mounted on the sliding sleeve 3 , and the end of the positioning screw 21 is pressed against the side of the first stand 1 and the second stand 2 . The first stand 1 and the second stand 2 are both provided with a supporting mechanism for supporting.

[0027] The supporting mechanism includes a first positioning block 23, a supporting rod 24, a second positioning block 25 and a supporting block 5. A receiving groove 22 is provided in the first frame 1 and the second frame 2. The first positioning block 23 dampedly slides in the receiving groove 22. The supporting rod 24 dampedly hinged at the end of the first positioning block 23. The second positioning block 25 is fixedly connected to the end of the supporting rod 24. The second positioning block 25 dampedly plugged into the receiving groove 22. The supporting block 5 is fixedly connected to the side of the second positioning block 25 in the first frame 1.

[0028] In this embodiment, the first positioning block 23 and the second positioning block 25 are damped and installed in the first frame 1 and the second frame 2, so that the support rod 24 can be positioned and the firmness of the support rod 24 installed in the first frame 1 and the second frame 2 can be improved.

[0029] In addition, in order to facilitate the unfolding of the guardrail, a universal wheel 4 is fixedly installed on the side of the second positioning block 25 in the second frame 2. By dragging the second frame 2, the universal wheel 4 can be used to move the second frame 2, so that the guardrail can be unfolded.

[0030] Multiple sets of universal balls 19 are fixedly connected to the inner side of the sliding sleeve 3 . Multiple sets of positioning grooves 20 for the universal balls 19 to slide are provided in the first stand 1 and the second stand 2 . The balls of the universal balls 19 are in contact with the inner walls of the positioning grooves 20 .

[0031] It is worth mentioning that when the guardrail is unfolded, the sliding sleeve 3 can slide on the first stand 1 and the second stand 2 through the universal ball 19, so that the first protection strip 8, the second protection strip 9 and the third protection strip 10 can be easily unfolded.

[0032] Reflective strips 6 are disposed on the sides of the first stand 1 and the second stand 2 , and warning lights 7 are disposed on the tops of the first stand 1 and the second stand 2 .

[0033] It is worth noting that the reflective strip 6 and the warning light 7 can serve as a warning at night.

[0034] A mounting seat 13 is fixedly mounted on the side of the first stand 1 , a rotating seat 14 is movably mounted on the side of the mounting seat 13 , an adjusting block 15 is movably mounted in the rotating seat 14 , a threaded rod 16 is threadedly mounted in the adjusting block 15 , and a fixing ring 17 is fixedly connected to the threaded rod 16 .

[0035] A clamping seat 18 for positioning the fixing ring 17 is fixedly connected to the side of the second stand 2 , and an avoidance hole is opened on the clamping seat 18 .

[0036] During specific use, by dragging the second frame 2, the second frame 2 can be moved by the universal wheel 4, so that the first frame 1 and the second frame 2 can be pulled apart. When the first frame 1 and the second frame 2 are pulled apart, the first protective strip 8, the second protective strip 9 and the third protective strip 10 can be dragged so that the first protective strip 8, the second protective strip 9 and the third protective strip 10 can be unfolded, and the edge opening can be protected and isolated by the first protective strip 8, the second protective strip 9 and the third protective strip 10.

[0037] When a plurality of the devices are required for enclosure according to the size of the adjacent hole, the threaded rod 16 can be moved into the avoidance hole by rotating the rotating seat 14 and the adjusting block 15 on the first frame 1, and the threaded rod 16 can be rotated so that the fixing ring 17 can be moved into the clamping seat 18 on the adjacent second frame 2, so as to achieve splicing and fixation with the device, and the operation can be repeated. In this way, the device can be added or subtracted in turn according to the site conditions until the entire adjacent hole is enclosed.

[0038] By pulling the support rod 24 out of the storage groove 22, the first stand 1 and the second stand 2 can be supported by the support rod 24 in cooperation with the support block 5 and the universal wheel 4, thereby improving the stability of the device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A retractable guardrail device, comprising a first stand (1) and a second stand (2), characterized in that: The first frame (1) and the second frame (2) are both slidably mounted with a sliding sleeve (3), and the sliding sleeves (3) of the first frame (1) and the second frame (2) are respectively hinged with a first protection strip (8) and a second protection strip (9), and the first protection strip (8) and the second protection strip (9) are hinged, one end of the first protection strip (8) is hinged to the side of the second frame (2), and one end of the second protection strip (9) is hinged to the side of the first frame (1), and the sides of the first frame (1) and the second frame (2) are respectively hinged with a first connecting strip (11) and a second connecting strip (12), and the first connecting strip (11) and the second connecting strip (12) are hinged with a third protection strip (10), and the third protection strip (10) is hinged to the first protection strip (8) and the second protection strip (9); A positioning screw (21) is threadedly mounted on the sliding sleeve (3), and the end of the positioning screw (21) is pressed against the side of the first stand (1) and the second stand (2). A supporting mechanism for supporting is provided inside the first stand (1) and the second stand (2).

2. A retractable guardrail device according to claim 1, characterized in that: The support mechanism comprises a first positioning block (23), a support rod (24), a second positioning block (25) and a support block (5); a receiving groove (22) is provided in the first stand (1) and the second stand (2); the first positioning block (23) is damped and slid in the receiving groove (22); the support rod (24) is damped and hinged at the end of the first positioning block (23); the second positioning block (25) is fixedly connected to the end of the support rod (24); the second positioning block (25) is damped and inserted in the receiving groove (22); and the support block (5) is fixedly connected to the side of the second positioning block (25) in the first stand (1).

3. The retractable guardrail device according to claim 1, characterized in that: A plurality of sets of universal balls (19) are fixedly connected to the inner side of the sliding sleeve (3); a plurality of sets of positioning grooves (20) for the universal balls (19) to slide are provided in the first vertical frame (1) and the second vertical frame (2); and the balls of the universal balls (19) are in contact with the inner walls of the positioning grooves (20).

4. The retractable guardrail device according to claim 1, characterized in that: Reflective strips (6) are provided on the sides of the first stand (1) and the second stand (2).

5. The retractable guardrail device according to claim 1, characterized in that: A mounting seat (13) is fixedly mounted on the side of the first stand (1), a rotating seat (14) is movably mounted on the side of the mounting seat (13), an adjusting block (15) is movably mounted inside the rotating seat (14), a threaded rod (16) is internally threadedly mounted on the adjusting block (15), and a fixing ring (17) is fixedly connected to the threaded rod (16).

6. A retractable guardrail device according to claim 5, characterized in that: A clamping seat (18) for positioning the fixing ring (17) is fixedly connected to the side of the second stand (2), and an avoidance hole is provided on the clamping seat (18).

7. The retractable guardrail device according to claim 1, characterized in that: Warning lights (7) are provided on the tops of the first stand (1) and the second stand (2).

Images