Shaft mouth isolation guardrail

Abstract

The utility model relates to the technical field of guardrails, and discloses a shaft mouth isolation guardrail which comprises a bottom ring, a plurality of mounting seats are fixedly connected to the upper end of the bottom ring at equal intervals, handrails are rotatably connected to the interiors of the mounting seats through second rotating shafts, and positioning rods are fixedly connected to the lower ends of the sides, away from the center of the bottom ring, of the handrails. A supporting ring is jointly clamped between the handrails, and a plurality of fixing mechanisms are fixedly connected to the inner wall of the bottom ring at equal intervals. The fixing mechanisms are arranged on the inner wall of the bottom ring, the hook plates of the fixing mechanisms are inserted into the shaft mouth, when the bottom ring is impacted, the bottom ring can be fixed to the outer side of the shaft mouth by fixing the fixing mechanisms, it is guaranteed that the bottom ring is not prone to shaking and toppling over, the handrail can be folded after construction is finished, and the bottom ring is convenient to use. And the movement is convenient.

Description

Technical Field

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

[0002] A vertical shaft refers to a well-shaped pipe standing upright on the wall of a cave. During the construction process, a guardrail is usually set at the mouth of the vertical shaft to warn passing workers.

[0003] At present, most of the guardrails placed at the shaft mouth are set vertically on the ground. When the guardrail is hit, it is easy to shake and fall. At this time, fasteners or weights are needed to fix the lower end of the guardrail stably on the ground. The process is more troublesome and inconvenient to move after the construction is completed. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems in the related art to a certain extent. To this end, one purpose of the utility model is to propose a shaft wellhead isolation guardrail, which is provided with a plurality of fixing mechanisms on the inner wall of the bottom ring, and by inserting the hook plates of the plurality of mechanisms into the shaft wellhead, when the utility model is hit, the plurality of fixing mechanisms are fixed to fix the bottom ring on the outer side of the shaft wellhead, so as to ensure that the utility model is not easy to shake and fall, and the railing can be folded after the construction is completed, so as to facilitate the movement.

[0005] According to the utility model, the shaft wellhead isolation guardrail comprises a bottom ring, the upper end of the bottom ring is fixedly connected with a plurality of mounting seats at equal intervals, the interiors of the plurality of mounting seats are rotatably connected with railings through a second rotating shaft, the lower ends of the railings on the side away from the center of the bottom ring are fixedly connected with positioning rods, a support ring is commonly clamped between the plurality of railings, and a plurality of fixing mechanisms are fixedly connected with equal intervals on the inner wall of the bottom ring;

[0006] The fixing mechanisms include a pull plate, which is fixedly connected to the inner wall of the bottom ring. A rotation groove is provided on one side of the pull plate close to the center of the bottom ring. A hook plate is rotatably connected to the inside of the rotation groove via a first rotating shaft. Square blocks are fixedly connected to both sides of the pull plate close to the center of the bottom ring. Positioning plates are clamped on the square blocks. An insertion rod is horizontally fixedly connected to the lower end of the positioning plate close to the side of the pull plate on the same side. The end of the insertion rod away from the positioning plate is inserted into the hook plate on the same side.

[0007] Preferably, a support block is fixedly connected to one side of the upper end of the pull plate away from the center of the bottom ring, and the upper end of the support block abuts against the lower end of the support ring.

[0008] Preferably, the support ring and the bottom ring are located on the same center line, and the circumferential outer wall of the support ring abuts against a plurality of railings.

[0009] Preferably, the square blocks are located on the same center line as the first rotating shaft on the pull plate.

[0010] Preferably, a fixing spring is sleeved on the outer side of the insertion rod, and both ends of the fixing spring are respectively fixedly connected to the hook plate and the positioning plate on the same side.

[0011] Preferably, a plurality of holes are formed at equal intervals on the lower end of the support ring, and the number of the holes is the same as the number of the railings and corresponds one to one, and the diameters of the plurality of holes on the support ring match the diameters of the positioning rods on the corresponding railings.

[0012] The beneficial effects of the utility model are as follows: the utility model arranges a plurality of fixing mechanisms on the inner wall of the bottom ring, and inserts the hook plates of the plurality of mechanisms into the shaft opening. When the utility model is hit, the plurality of fixing mechanisms can fix the bottom ring on the outside of the shaft opening, thereby ensuring that the utility model is not easy to shake and fall over, and the handrails can be folded after the construction is completed, so that it is convenient to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the expanded structure of the vertical shaft opening isolation guardrail.

[0014] Figure 2 The utility model is a schematic diagram of the fixing mechanism structure in the shaft opening isolation guardrail.

[0015] Figure 3 The utility model is a schematic diagram of the foldable structure of the vertical shaft opening isolation guardrail.

[0016] Figure 4 This is a schematic diagram of the foldable cutaway structure of the shaft opening isolation guardrail proposed by the utility model.

[0017] Figure 5 This is a schematic structural diagram of the support ring in the vertical shaft wellhead isolation guardrail proposed by the utility model.

[0018] In the figure: 1. bottom ring; 2. fixing mechanism; 21. pull plate; 22. support block; 23. rotation groove; 24. first rotating shaft; 25. hook plate; 26. square block; 27. positioning plate; 28. insertion rod; 29. ​​fixing spring; 3. mounting seat; 4. second rotating shaft; 5. railing; 6. positioning rod; 7. support ring. DETAILED DESCRIPTION

[0019] Reference Figure 1-5, the shaft mouth isolation guardrail comprises a bottom ring 1, a plurality of mounting seats 3 are fixedly connected at equal intervals on the upper end of the bottom ring 1, a plurality of mounting seats 3 are rotatably connected inside the plurality of mounting seats 3 through a second rotating shaft 4, a positioning rod 6 is fixedly connected to the lower end of the side of the railing 5 away from the center of the bottom ring 1, a support ring 7 is commonly clamped between the plurality of railings 5, and a plurality of fixing mechanisms 2 are fixedly connected to the inner wall of the bottom ring 1 at equal intervals; the fixing mechanisms 2 comprise a pull plate 21, the pull plate 21 is fixedly connected to the inner wall of the bottom ring 1, a rotation groove 23 is provided on the side of the pull plate 21 close to the center of the bottom ring 1, a hook plate 25 is rotatably connected to the inside of the rotation groove 23 through a first rotating shaft 24, a square block 26 is fixedly connected to both sides of the side of the pull plate 21 close to the center of the bottom ring 1, a positioning plate 27 is clamped on the square block 26, a plug rod 28 is horizontally fixedly connected to the side of the lower end of the positioning plate 27 close to the same side pull plate 21, and an end of the plug rod 28 away from the positioning plate 27 is plugged into the same side hook plate 25.

[0020] The outer sides of the plug rods 28 are sleeved with fixing springs 29, and the two ends of the fixing springs 29 are respectively fixedly connected to the hook plate 25 and the positioning plate 27 on the same side, so as to facilitate the automatic clamping of the positioning plate 27 on the square block 26. The lower end of the support ring 7 is provided with a plurality of holes at equal intervals, and the number of holes is the same as the number of the railings 5 ​​and corresponds one to one. The diameters of the plurality of holes on the support ring 7 are matched with the diameters of the positioning rods 6 on the corresponding railings 5. When moving the utility model, it is convenient to clamp the support ring 7 on a plurality of railings 5 ​​to fix the state of the utility model. A support block 22 is fixedly connected to the side of the upper end of the pull plate 21 away from the center of the bottom ring 1, and the upper ends of the support blocks 22 are against the lower ends of the support ring 7 to support the support ring 7. The support ring 7 and the bottom ring 1 are located on the same center line. The circumferential outer wall of the support ring 7 is against multiple railings 5 ​​to support the multiple railings 5 ​​and fix the multiple railings 5 ​​in a vertical state. The square blocks 26 are located on the same center line as the first rotating shaft 24 on the pull plate 21, so that the positioning plate 27 can still be clamped on the square block 26 after the hook plate 25 is rotated.

[0021] When the present invention is in use, the supporting ring 7 is pulled out, the multiple railings 5 ​​are rotated from the horizontal state to the vertical state, the positioning plate 27 is pulled out from the square block 26, and the hook plate 25 is rotated from the horizontal state to the vertical state, and the positioning plate 27 is clamped on the square block 26 again to fix the state of the hook plate 25, the bottom ring 1 is placed in the shaft wellhead, the bottom ring 1 is fixed to the outside of the shaft wellhead, and then the supporting ring 7 is clamped between the multiple railings 5 ​​to support the multiple railings 5, thereby blocking the shaft wellhead and warning the passing staff. When the utility model is hit, the multiple fixing mechanisms 2 will resist the bottom ring 1 to ensure that the utility model is difficult to shake and fall. When moving the utility model, the supporting ring 7 is removed, the multiple railings 5 ​​are rotated back to the horizontal state, the bottom ring 1 is removed from the shaft wellhead, and the hook plate 25 is rotated back to the horizontal state, and the supporting ring 7 is clamped on the multiple railings 5 ​​to fix the state of the utility model, and then the utility model can be moved.

Claims

1. A vertical shaft opening isolation guardrail, characterized in that: The invention comprises a bottom ring (1), the upper end of the bottom ring (1) is fixedly connected to a plurality of mounting seats (3) at equal intervals, the interiors of the plurality of mounting seats (3) are rotatably connected to railings (5) via second rotating shafts (4), the lower ends of the railings (5) on a side away from the center of the bottom ring (1) are fixedly connected to positioning rods (6), a support ring (7) is commonly clamped between the plurality of railings (5), and a plurality of fixing mechanisms (2) are fixedly connected to the inner wall of the bottom ring (1) at equal intervals; The fixing mechanism (2) comprises a pull plate (21), and the pull plate (21) is fixedly connected to the inner wall of the bottom ring (1). A rotation groove (23) is provided on one side of the pull plate (21) close to the center of the bottom ring (1). The interior of the rotation groove (23) is rotatably connected to a hook plate (25) via a first rotating shaft (24). Square blocks (26) are fixedly connected to both sides of one side of the pull plate (21) close to the center of the bottom ring (1). Positioning plates (27) are clamped on the square blocks (26). The lower end of the positioning plate (27) is horizontally fixedly connected to a plug rod (28) close to the same side pull plate (21), and the end of the plug rod (28) away from the positioning plate (27) is plugged into the same side hook plate (25).

2. The vertical shaft opening isolation guardrail according to claim 1 is characterized in that: A support block (22) is fixedly connected to one side of the upper end of the pull plate (21) away from the center of the bottom ring (1), and the upper end of the support block (22) abuts against the lower end of the support ring (7).

3. The vertical shaft opening isolation guardrail according to claim 1 is characterized in that: The support ring (7) and the bottom ring (1) are located on the same center line, and the circumferential outer wall of the support ring (7) abuts against a plurality of railings (5).

4. The vertical shaft opening isolation guardrail according to claim 1, characterized in that: The square blocks (26) are all located on the same center line as the first rotating shaft (24) on the pull plate (21) on which they are located.

5. The vertical shaft opening isolation guardrail according to claim 1, characterized in that: The outer sides of the insert rods (28) are sleeved with fixing springs (29), and both ends of the fixing springs (29) are respectively fixedly connected to the hook plate (25) and the positioning plate (27) on the same side.

6. The vertical shaft opening isolation guardrail according to claim 1, characterized in that: The lower end of the support ring (7) is provided with a plurality of holes at equal intervals, and the number of the holes is the same as the number of the railings (5) and corresponds one to one, and the diameters of the plurality of holes on the support ring (7) all match the diameters of the positioning rods (6) on the corresponding railings (5).

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