Shearing and clamping type safety protective fence

Abstract

The utility model discloses a shearing and clamping type safety protective fence, and particularly relates to the field of protective fences, the shearing and clamping type safety protective fence comprises a handrail, the bottom end of the handrail is in threaded connection with a clamping mechanism, the clamping mechanism comprises a clamping plate, the upper end of the clamping plate is fixedly connected with a threaded column, the upper surface of the clamping plate is connected with a screw rod in a penetrating manner, and the threaded column is fixedly connected with the threaded column. The outer wall of the screw is in threaded connection with a nut, the bottom end of the clamping plate is connected with a telescopic frame through a rotating shaft, one end of the telescopic frame is fixedly connected with a positioning sleeve, and the inner wall of the positioning sleeve is connected with a threaded rod through a bearing. Rapid installation is facilitated through the clamping mechanism, the telescopic frame can be stretched by rotating the rotating handle in the using process, therefore, the distance between the clamping plates can be adjusted, the clamping plates can be fixed to lower components of various specifications and sizes, the scissor type supporting rod is tensioned through the horizontal bolt adopted by the shearing and clamping base, the clamping plates are firmer, and the clamping efficiency is improved. The fixing mode of the shearing clamp can effectively avoid damage to lower components, and protection of finished products is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of guardrails, and more specifically, to a shear-clamp type safety guardrail. Background Art

[0002] The guardrail columns are fixed to the ground by expansion bolts or pre-buried bolts. They are usually installed on both sides of logistics channels, around production equipment, in building corners, on both sides of doors and on the edge of cargo platforms, etc.

[0003] After searching, the existing patent (publication number: CN208441620U) discloses a safety guardrail, which belongs to the field of construction auxiliary tools, and its purpose is to solve the problem that it is difficult to meet the actual protection length requirements. It includes a horizontal railing, which includes a large sleeve in the middle, small sleeves at both ends, and an expansion sleeve connecting the large sleeve and the small sleeve; the expansion sleeve includes a cap and a screw portion with a through hole that is threadedly connected to the inner wall of the large sleeve, and the screw portion is tapered from one end adjacent to the cap to the other end; the screw portion is provided with at least two slits, which pass through the screw portion radially to the through hole, and pass through from one end of the screw portion to the other end; the plug-in end of the small sleeve is inserted into the through hole of the expansion sleeve. In the utility model, the relative position of the large sleeve and the small sleeve is locked by squeezing the outer wall of the small sleeve by the expansion sleeve, so the length of the small sleeve inserted into the large sleeve can be adjusted as needed, thereby realizing the continuous adjustment of the length of the horizontal railing, which is more likely to meet the actual protection length requirements. In the process of realizing the utility model, the inventor found that the existing technology has the following problems:

[0004] Existing metal roofs and curtain walls have been widely used in buildings such as conference and exhibition halls, office buildings, and schools. Most of these construction environments involve high-altitude work alongside edges, making safety and protection a key issue in on-site management. Unlike ordinary concrete floors, metal roofs and curtain walls typically use various steel pipes (primary and secondary keels, purlins, etc.) for their working surfaces, which cannot be fixed using punched holes with ordinary guardrails. Therefore, in actual construction, protective measures typically involve welding ordinary steel pipes directly to lower purlins or square steel pipes, making installation difficult. Consequently, a clamping mechanism is required for quick installation. Furthermore, the aforementioned patent documents do not propose a solution to the problem of quick installation of guardrails.

[0005] Therefore, a shear-clamp type safety guardrail is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a shear-clamp type safety guardrail to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a shear-clamp type safety guardrail, comprising a railing, the bottom end of the railing being threadedly connected to a clamping mechanism, the clamping mechanism comprising a clamping plate, the upper end of the clamping plate being fixedly connected to a threaded column, a screw being passed through the upper surface of the clamping plate, a nut being threadedly connected to the outer wall of the screw, the bottom end of the clamping plate being connected to a telescopic frame via a rotating shaft, one end of the telescopic frame being fixedly connected to a positioning sleeve;

[0008] The inner wall of the positioning sleeve is connected to a threaded rod through a bearing, the outer wall of the threaded rod is threadedly connected to a threaded sleeve, one end of the threaded rod is fixedly connected to a turning handle, and the threaded column and the railing are threadedly connected.

[0009] Preferably, the bottom end of the clamping plate is movably clamped and connected to a fixed beam, the outer wall of the railing is fixedly connected to a fixed block, and the upper surface of the fixed block is snap-connected to a protective mechanism.

[0010] Preferably, the protective mechanism includes a fixing box, an inner wall of the fixing box is fixedly connected to a torsion spring, one end of the torsion spring is fixedly connected to a retractable rod, and the fixing box is fixedly installed inside the railing.

[0011] Preferably, the retractable rod is installed inside the railing through a bearing, and the fixing box is installed at the central axis position of the fixing box through a bearing.

[0012] Preferably, a telescopic rope is wound around the outer wall of the retractable rod, and one end of the telescopic rope is fixedly connected to a locking assembly.

[0013] Preferably, the locking assembly includes a lock buckle, a thread groove is provided on the top of the lock buckle, and a locking sleeve is threadedly connected to the outer wall of the thread groove.

[0014] Preferably, the inner wall of the lock sleeve is movably connected to a limit plate, and the limit plate is installed on the lock buckle.

[0015] Preferably, the threaded sleeve and the positioning sleeve are installed at both ends of the telescopic frame, and the threaded rod passes through the interior of the threaded sleeve and is connected to the positioning sleeve via a bearing.

[0016] The technical effects and advantages of this utility model are:

[0017] 1、Compared with the prior art, the shearing clamp type safety guard rail is convenient to quickly install through the clamping mechanism, the telescopic frame can be stretched by rotating the rotating handle during use, so that the spacing of the clamping plates can be adjusted, can be fixed on various specifications and sizes of lower members, the horizontal bolt tensioning shearing type supporting rod is adopted for the shearing clamp base, the clamping plates are more firm, the fixing mode of the shearing clamp can effectively avoid damage to the lower member, is beneficial to product protection, the threaded column can fix the guard rail, the guard rail can be rotated to any angle and self-locked through the threaded connection mode, the structure is simple, the manufacturing cost is low, can be recycled, and the construction investment is reduced.

[0018] 2、Compared with the prior art, the shearing clamp type safety guard rail is convenient to protect through the protection mechanism, the telescopic rope is pulled out from the guard rail through the locking assembly during use, and then the locking assembly can be fixed on the fixed block, plays a protection role on irregular protection surfaces, can also be used as a lifeline to hang a safety belt, meets various protection requirements, can meet the special protection requirements of metal roofs, curtain walls and the like, and can also be used as a lifeline to hang a safety belt. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole three-dimensional structure schematic view of the utility model.

[0020] Figure 2 It is a clamping mechanism structure schematic view of the utility model.

[0021] Figure 3 It is a protection mechanism structure schematic view of the utility model.

[0022] Figure 4 It is a locking assembly unfolded structure schematic view of the utility model.

[0023] The figure mark is: 1, guard rail; 2, clamping mechanism; 3, fixed beam; 4, protection mechanism; 5, fixed block; 201, clamping plate; 202, threaded column; 203, screw rod; 204, nut; 205, telescopic frame; 206, positioning sleeve; 207, threaded rod; 208, threaded sleeve; 209, rotating handle; 401, fixed box; 402, torsional spring; 403, retractable rod; 404, telescopic rope; 405, locking assembly; 4051, lock catch; 4052, threaded groove; 4053, lock sleeve; 4054, limiting plate. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Example 1

[0026] As attached Figure 1 and Figure 2 The shear-clamp type safety guardrail shown includes a railing 1, the bottom end of which is threadedly connected to a clamping mechanism 2. The clamping mechanism 2 includes a clamping plate 201, the upper end of which is fixedly connected to a threaded column 202. A screw 203 is connected through the upper surface of the clamping plate 201, and a nut 204 is threadedly connected to the outer wall of the screw 203. The bottom end of the clamping plate 201 is connected to a telescopic frame 205 via a rotating shaft, and one end of the telescopic frame 205 is fixedly connected to a positioning sleeve 206.

[0027] The inner wall of the positioning sleeve 206 is connected to the threaded rod 207 through a bearing, the outer wall of the threaded rod 207 is threadedly connected to the threaded sleeve 208, one end of the threaded rod 207 is fixedly connected to the handle 209, and the threaded column 202 is threadedly connected to the railing 1.

[0028] Among them: when in use, the telescopic frame 205 can be extended by turning the handle 209, so that the spacing of the clamping plates 201 can be adjusted, and it can be fixed on lower components of various specifications and sizes. The horizontal bolts used in the shear clamp base tighten the scissor-type support rods, making the splints more secure. The fixing method of the shear clamp can effectively avoid damage to the lower components and is beneficial to the protection of the finished product. The threaded column 202 can fix the railing 1, and the railing 1 can be rotated to any angle and self-locked by means of threaded connection. The structure is simple, the production cost is low, it can be recycled, and the construction investment is reduced.

[0029] Example 2

[0030] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details:

[0031] As a preferred embodiment, the bottom end of the clamping plate 201 is movably clamped and connected to the fixed beam 3, the outer wall of the railing 1 is fixedly connected to the fixed block 5, and the upper surface of the fixed block 5 is snap-connected with the protective mechanism 4; further, the clamping mechanism 2 can be clamped on the fixed beam 3 for fixation, and then the protective mechanism 4 can be pulled out from the railing 1 and then fixed on the fixed block 5 for protection.

[0032] As a preferred embodiment, the protective mechanism 4 includes a fixed box 401, the inner wall of the fixed box 401 is fixedly connected to a torsion spring 402, one end of the torsion spring 402 is fixedly connected to a retractable rod 403, and the fixed box 401 is fixedly installed inside the railing 1; further, when the retractable rod 403 rotates, it will drive the torsion spring 402 to move, and then the torsion spring 402 will tighten, and when the retractable rope 404 loses external force, the torsion spring 402 will reset the torsion spring 402.

[0033] As a preferred embodiment, the retractable rod 403 is installed inside the railing 1 through a bearing, and the fixing box 401 is installed at the central axis position of the fixing box 401 through a bearing; further, the retractable rope 404 can rotate inside the railing 1.

[0034] As a preferred embodiment, a retractable rope 404 is wrapped around the outer wall of the retractable rod 403, and one end of the retractable rope 404 is fixedly connected to a locking assembly 405; further, when the locking assembly 405 is pulled, the retractable rope 404 can be extended from the torsion spring 402.

[0035] As a preferred embodiment, the locking assembly 405 includes a lock buckle 4051 , a threaded groove 4052 is provided on the top of the lock buckle 4051 , and a locking sleeve 4053 is threadedly connected to the outer wall of the threaded groove 4052 ; further, the locking sleeve 4053 can be connected and fixed to the threaded groove 4052 .

[0036] As a preferred embodiment, the inner wall of the lock sleeve 4053 is movably connected to a limit plate 4054 , and the limit plate 4054 is installed on the lock buckle 4051 ; further, the limit plate 4054 can limit the lock sleeve 4053 .

[0037] As a preferred embodiment, the threaded sleeve 208 and the positioning sleeve 206 are installed at both ends of the telescopic frame 205, and the threaded rod 207 passes through the interior of the threaded sleeve 208 and is connected to the positioning sleeve 206 by a bearing; further, the threaded rod 207 can move through the threaded sleeve 208 when rotating, thereby driving the telescopic frame 205 to extend.

[0038] The working process of the utility model is as follows: firstly, the rotating handle 209 can drive the threaded rod 207 to rotate, the threaded rod 207 will drive the threaded sleeve 208 to move when rotating, then the telescopic frame 205 can be driven to stretch, the clamping plate 201 is unfolded and clamped on the fixed beam 3, then the rotating handle 209 is rotated to tighten the telescopic frame 205, so that the clamping plate 201 is tightly clamped on the fixed beam 3, then the nut 204 is sleeved on the screw rod 203 to fasten, then the railing 1 is rotated and fixed on the threaded column 202, when being adjusted to the proper angle, the railing 1 can stop locking, then the locking assembly 405 can be pulled to pull the telescopic rope 404 out of the railing 1, then the lock catch 4051 is sleeved on the fixed block 5, then the lock sleeve 4053 is connected with the threaded groove 4052, when the telescopic rope 404 is pulled, the torsional spring 402 will rotate, at the same time, the torsional spring 402 is driven to move, when the telescopic rope 404 loses external force, the torsional spring 402 will reset the retractable rod 403, then the telescopic rope 404 is retracted into the railing 1, the above is the working principle of the shearing and clamping type safety guardrail.

[0039] Finally: the above only for the preferred embodiment of the utility model has, and does not limit the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A shear-clamp type safety guardrail, comprising a railing (1), characterized in that: The bottom end of the railing (1) is threadedly connected to a clamping mechanism (2), the clamping mechanism (2) comprises a clamping plate (201), the upper end of the clamping plate (201) is fixedly connected to a threaded column (202), a screw rod (203) is passed through the top of the clamping plate (201), the outer wall of the screw rod (203) is threadedly connected to a nut (204), the bottom end of the clamping plate (201) is connected to a telescopic frame (205) via a rotating shaft, and one end of the telescopic frame (205) is fixedly connected to a positioning sleeve (206); The inner wall of the positioning sleeve (206) is connected to a threaded rod (207) via a bearing, the outer wall of the threaded rod (207) is threadedly connected to a threaded sleeve (208), one end of the threaded rod (207) is fixedly connected to a turning handle (209), and the threaded column (202) and the railing (1) are threadedly connected.

2. The shear-clip safety guardrail according to claim 1, characterized in that: The bottom end of the clamping plate (201) is movably clamped and connected to a fixed beam (3), the outer wall of the railing (1) is fixedly connected to a fixed block (5), and the upper surface of the fixed block (5) is snap-connected to a protective mechanism (4).

3. The shear-clip type safety guardrail according to claim 2, characterized in that: The protection mechanism (4) comprises a fixing box (401), the inner wall of the fixing box (401) is fixedly connected to a torsion spring (402), one end of the torsion spring (402) is fixedly connected to a retractable rod (403), and the fixing box (401) is fixedly installed inside the railing (1).

4. The shear-clip safety guardrail according to claim 3, characterized in that: The retractable rod (403) is installed inside the railing (1) via a bearing, and the fixing box (401) is installed at the central axis position of the fixing box (401) via a bearing.

5. The shear-clip safety guardrail according to claim 4, characterized in that: A retractable rope (404) is wound around the outer wall of the retractable rod (403), and one end of the retractable rope (404) is fixedly connected to a locking assembly (405).

6. The shear-clip safety guardrail according to claim 5, characterized in that: The locking assembly (405) includes a lock buckle (4051), a thread groove (4052) is provided on the top of the lock buckle (4051), and a locking sleeve (4053) is threadedly connected to the outer wall of the thread groove (4052).

7. The shear-clip safety guardrail according to claim 6, characterized in that: The inner wall of the lock sleeve (4053) is movably connected to a limit plate (4054), and the limit plate (4054) is installed on the lock buckle (4051).

8. The shear-clip safety guardrail according to claim 1, characterized in that: The threaded sleeve (208) and the positioning sleeve (206) are installed at both ends of the telescopic frame (205), and the threaded rod (207) passes through the interior of the threaded sleeve (208) and is connected to the positioning sleeve (206) via a bearing.

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