Protective fence for elevator shaft opening

Abstract

The utility model relates to the technical field of elevator shaft mouth protection, and discloses an elevator shaft mouth protective fence which comprises a protective frame, a bottom plate is arranged at the lower end of the inner side of the protective frame, a protective net is arranged at the upper end of the bottom plate, a groove is formed in the bottom plate, and fixing mechanisms are arranged on the left side and the right side in the groove. A plurality of fixing holes used in cooperation with the fixing mechanism are formed in the left end and the right end of the inner side of the protection frame, a limiting plate is arranged on the rear side of the bottom plate, the fixing mechanism comprises a sliding block, a fixing rod, a pulling plate and a spring, the sliding block is arranged in the groove in a sliding mode, the fixing rod is arranged on the sliding block, and the pulling plate is arranged on the sliding block. One end of each fixing rod penetrates out of the corresponding groove and is connected with the corresponding fixing hole in an inserted mode. When a worker enters the elevator shaft opening for construction, the protective net can be limited and fixed, so that external personnel cannot move the protective net to enter the elevator shaft opening, and the safety during construction is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator shaft opening protection, in particular to an elevator shaft opening protection fence. Background Art

[0002] The elevator shaft protection fence is a facility set up to ensure the safety of elevator use. It is mainly used to prevent people from mistakenly entering the elevator shaft area to avoid accidents. The height of the fence should meet relevant standards to ensure effective isolation between people and the elevator shaft, and prevent people from being injured due to accidental falls or contact with the running elevator.

[0003] For example, the Chinese utility model patent with the announcement number "CN217380346U" discloses "an elevator shaft opening protective door, including columns and skirting boards, a protective door is arranged between the columns, a transverse connecting rod is fixedly arranged on the top of the protective door, the two ends of the transverse connecting rod are rotatably connected to the top of the column, and the protective door can be flipped upward; the skirting board is located below the protective net, and the two ends of the skirting board are inserted into the fixed slots. Compared with the prior art, the advantages of the utility model are: clear structure, easy to use, one-way flip protective door is convenient for construction work in the elevator shaft; the skirting board can be adjusted, and there is no gap with the ground, avoiding safety problems caused by foreign objects falling into the elevator shaft; the reflective warning signs and warning lights on the skirting board and the grille can serve as a warning in insufficient light, ensuring the safety of construction workers; the detachable wall clamps and top wall adjustment bolts can be replaced and fine-tuned according to different wall thicknesses, and the applicability is more extensive. It has strong practicality and market promotion value."

[0004] With respect to the above-mentioned related technologies, the baffle prevents the protective door from opening toward the elevator shaft, but non-staff members can directly pull the protective door to rotate it, making it easy for outsiders to mistakenly enter the elevator shaft, thereby greatly reducing the safety during construction. Therefore, those skilled in the art provide an elevator shaft protection fence to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] In order to solve the problem that outsiders other than staff can directly pull the protective door to make it rotate, thereby making it easy for outsiders to mistakenly enter the elevator shaft, thereby reducing the safety during construction, the utility model provides an elevator shaft protection fence.

[0006] The utility model provides an elevator shaft protection fence adopting the following technical scheme: an elevator shaft protection fence, comprising a protection frame, a bottom plate is arranged at the inner lower end of the protection frame, a protection net is arranged at the upper end of the bottom plate, a groove is opened inside the bottom plate, a fixing mechanism is arranged on both the left and right sides of the groove, a plurality of fixing holes used in conjunction with the fixing mechanism are arranged on both the left and right ends of the inner side of the protection frame, and a limit plate is arranged on the rear side of the bottom plate;

[0007] The fixing mechanism includes a slider, a fixing rod, a pull plate and a spring. The slider is slidably arranged in the groove. The fixing rod is arranged on the slider. One end of the fixing rod passes through the groove and is plugged into the corresponding fixing hole. The pull plate is arranged at one end of the fixing rod, and the front and rear ends of the pull plate both pass through the groove. The spring is sleeved on the outside of the fixing rod, and the two ends of the spring are respectively connected to the slider and the inner wall of the groove.

[0008] Preferably, a plurality of guide blocks are provided on both the left and right sides of the bottom plate, a plurality of guide grooves are provided on both the left and right ends of the inner side of the protective frame, and one end of the guide block away from the bottom plate penetrates into the guide groove and is slidably connected to the guide groove.

[0009] Preferably, a plurality of rectangular openings are provided on the rear side of the base plate, magnets are provided inside the rectangular openings and at the upper and lower ends of one side of the limiting plate, and the corresponding two magnets are magnets of opposite poles, a plurality of limiting openings for use with the pull plate are provided on the limiting plate, and the rear end of the pull plate passes through the limiting openings, and a handle is provided on the rear side of the limiting plate.

[0010] Preferably, a warning sign is provided on the front of the protection net, and a notch is provided on the upper portion of the protection frame.

[0011] Preferably, U-shaped blocks are provided at both upper and lower ends of the outer side of the protective frame, and positioning bolts are threadedly provided on the U-shaped blocks, and a top wall piece is provided at one end of the positioning bolts.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model is provided with a bottom plate, a protective net, a fixing mechanism and a fixing hole. The fixing rod is moved out of the fixing hole by pulling the two pulling plates, so that the limitation of the bottom plate can be cancelled. Then, the bottom plate can be moved upward to move the protective net upward, so that it is convenient for the staff to enter the elevator shaft through the protective frame for construction. At the same time, a limiting plate, a magnet and a limiting opening are provided. After the staff passes through the protective frame, the bottom plate is reset. At this time, the limiting opening on the limiting plate is passed through the pulling plate. Then, the limiting plate can be fixed to one side of the bottom plate through the adsorption and adhesion of the corresponding two magnets. Therefore, the pulling plate can be limited by the limiting plate, and the outside personnel cannot pull the pulling plate to move it. Furthermore, when the staff enters the elevator shaft for construction, the outside personnel cannot move the protective net to enter the elevator shaft, so the safety during construction is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0015] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;

[0016] Figure 3 This is a schematic diagram of the explosion connection structure between the limit plate and the bottom plate in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the protection frame in the utility model;

[0018] Figure 5 It is a schematic cross-sectional structure diagram of the bottom plate of the utility model.

[0019] Explanation of the accompanying drawings: 1. Protection frame; 2. Bottom plate; 3. Protection net; 4. Groove; 5. Fixing mechanism; 501. Slider; 502. Fixing rod; 503. Pull plate; 504. Spring; 6. Fixing hole; 7. Limit plate; 8. Guide block; 9. Guide groove; 10. Rectangular opening; 11. Magnet; 12. Limit opening; 13. Handle; 14. Warning sign; 15. Notch; 16. U-shaped block; 17. Positioning bolt; 18. Top wall member. DETAILED DESCRIPTION

[0020] 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.

[0021] The utility model embodiment discloses an elevator shaft protection fence. Figure 1-5, an elevator shaft protection fence, comprising a protection frame 1, a bottom plate 2 is arranged at the inner lower end of the protection frame 1, a protection net 3 is arranged at the upper end of the bottom plate 2, a groove 4 is opened inside the bottom plate 2, a fixing mechanism 5 is arranged on both the left and right sides of the groove 4, a plurality of fixing holes 6 used in conjunction with the fixing mechanism 5 are arranged at both the left and right ends of the inner side of the protection frame 1, and a limit plate 7 is arranged on the rear side of the bottom plate 2;

[0022] The fixing mechanism 5 includes a slider 501, a fixing rod 502, a pull plate 503 and a spring 504. The slider 501 is slidably set in the groove 4. The fixing rod 502 is set on the slider 501. One end of the fixing rod 502 passes through the groove 4 and is plugged into the corresponding fixing hole 6. The pull plate 503 is set at one end of the fixing rod 502, and the front and rear ends of the pull plate 503 both pass through the groove 4. The spring 504 is sleeved on the outside of the fixing rod 502, and the two ends of the spring 504 are respectively connected to the slider 501 and the inner wall of the groove 4.

[0023] By adopting the above technical solution, the fixing rod 502 is moved out of the fixing hole 6 by pulling the pull plate 503, so that the protection net 3 can be easily moved, and then the staff can pass through the protection frame 1 to enter the elevator shaft for construction.

[0024] Reference Figure 3 and Figure 4 A plurality of guide blocks 8 are provided on both sides of the bottom plate 2, and a plurality of guide grooves 9 are provided on both ends of the inner side of the protective frame 1. The end of the guide block 8 away from the bottom plate 2 penetrates into the guide groove 9 and is slidably connected with the guide groove 9.

[0025] By adopting the above technical solution, when the bottom plate 2 is pulled upward, the guide block 8 will be driven to move in the guide groove 9, so that the bottom plate 2 is more stable when moving and will not fall off from the inner side of the protective frame 1.

[0026] Reference Figure 3 A plurality of rectangular openings 10 are provided on the rear side of the bottom plate 2, and magnets 11 are provided inside the rectangular openings 10 and at the upper and lower ends of one side of the limiting plate 7, and the two corresponding magnets 11 are magnets of opposite poles. A plurality of limiting openings 12 for use with the pulling plate 503 are provided on the limiting plate 7, and the rear end of the pulling plate 503 passes through the limiting openings 12, and a handle 13 is provided on the rear side of the limiting plate 7.

[0027] By adopting the above-mentioned technical scheme, after the staff enters the elevator shaft and resets the protective net 3, the limiting opening 12 on the limiting plate 7 can be passed through the pull plate 503 so that the corresponding two magnets 11 are adsorbed and fit together, and the limiting plate 7 can be fixed on one side of the bottom plate 2, so that the pull plate 503 can be limited by the limiting plate 7, so that outsiders cannot pull the pull plate 503 to move it, and then when the staff enters the elevator shaft for construction, outsiders cannot move the protective net 3 to enter the elevator shaft.

[0028] Reference Figure 1 A warning sign 14 is provided on the front of the protection net 3 , and a notch 15 is provided on the upper part of the protection frame 1 .

[0029] By adopting the above technical solution, the warning effect is greatly improved through the warning sign 14, and the protection net 3 is convenient to move up and down through the gap 15.

[0030] Reference Figure 2 A U-shaped block 16 is provided at both upper and lower ends of the outer side of the protection frame 1 , and a positioning bolt 17 is threadedly provided on the U-shaped block 16 , and a top wall member 18 is provided at one end of the positioning bolt 17 .

[0031] By adopting the above technical solution, the top wall member 18 can be driven to move by rotating the positioning bolt 17, so that the protection frame 1 can be firmly connected to the wall of the elevator shaft.

[0032] Working principle: When the utility model is in use, the protective frame 1 is first placed on the inner side of the elevator shaft, and then the positioning bolt 17 is rotated to drive the top wall member 18 to move so that the top wall member 18 is firmly connected to the wall. Then the staff can pull the two pull plates 503 closer to each other, which will cause the fixing rod 502 to move out of the fixing hole 6 at the lower end, thus canceling the limit fixation of the bottom plate 2. Then the staff can move the bottom plate 2 to drive the protective net 3 to move upward. When the top of the bottom plate 2 contacts the inner top of the protective frame 1, the pull plate 503 is released, and then the elastic force of the spring 504 can drive the fixing rod 502 to be reinserted into the fixing hole 6 at the upper end. The staff can pass through the protective frame 1 and enter the elevator shaft. After entering the elevator shaft, they pull the pull plate 503 again to make the protective net 3 return to its original position. Then the staff passes the limiting opening 12 on the limiting plate 7 through the pull plate 503 so that the corresponding two magnets 11 are adsorbed and fit together. The limiting plate 7 can be fixed on one side of the bottom plate 2, so that the pull plate 503 can be limited by the limiting plate 7, so that outsiders cannot pull the pull plate 503 to move it, and then when the staff enters the elevator shaft for construction, outsiders cannot move the protective net 3 to enter the elevator shaft, which greatly improves the safety during construction.

[0033] When the utility model is in use, when the staff enters the elevator shaft to carry out construction, the protection net 3 can be limited and fixed, so that outsiders cannot move the protection net 3 to enter the elevator shaft, which greatly improves the safety during construction.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] 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. An elevator shaft protection fence, comprising a protection frame (1), characterized in that: A bottom plate (2) is arranged at the lower end of the inner side of the protection frame (1), a protection net (3) is arranged at the upper end of the bottom plate (2), a groove (4) is provided inside the bottom plate (2), fixing mechanisms (5) are arranged on both the left and right sides of the groove (4), a plurality of fixing holes (6) for use with the fixing mechanisms (5) are arranged at both the left and right ends of the inner side of the protection frame (1), and a limit plate (7) is arranged on the rear side of the bottom plate (2); The fixing mechanism (5) comprises a slider (501), a fixing rod (502), a pull plate (503) and a spring (504); the slider (501) is slidably arranged in the groove (4); the fixing rod (502) is arranged on the slider (501); one end of the fixing rod (502) passes through the groove (4) and is plugged into the corresponding fixing hole (6); the pull plate (503) is arranged at one end of the fixing rod (502); the front and rear ends of the pull plate (503) both pass through the groove (4); the spring (504) is sleeved on the outside of the fixing rod (502), and the two ends of the spring (504) are respectively connected to the slider (501) and the inner wall of the groove (4).

2. The elevator shaft protection fence according to claim 1, characterized in that: A plurality of guide blocks (8) are provided on both left and right sides of the bottom plate (2), a plurality of guide grooves (9) are provided on both left and right ends of the inner side of the protection frame (1), and one end of the guide block (8) away from the bottom plate (2) penetrates into the guide groove (9) and is slidably connected to the guide groove (9).

3. The elevator shaft protection fence according to claim 1, characterized in that: A plurality of rectangular openings (10) are provided on the rear side of the bottom plate (2), magnets (11) are provided inside the rectangular openings (10) and at the upper and lower ends of one side of the limiting plate (7), and the two corresponding magnets (11) are magnets of opposite polarities, a plurality of limiting openings (12) for use with the pull plate (503) are provided on the limiting plate (7), and the rear end of the pull plate (503) passes through the limiting openings (12), and a handle (13) is provided on the rear side of the limiting plate (7).

4. The elevator shaft protection fence according to claim 1, characterized in that: A warning sign (14) is provided on the front of the protection net (3), and a notch (15) is provided on the upper part of the protection frame (1).

5. The elevator shaft protection fence according to claim 1, characterized in that: U-shaped blocks (16) are provided at both upper and lower ends of the outer side of the protection frame (1), a positioning bolt (17) is threadedly provided on the U-shaped block (16), and a top wall piece (18) is provided at one end of the positioning bolt (17).

Images