Elevator opening protection device

Abstract

The utility model relates to the technical field of elevators, in particular to an elevator entrance protection device. According to the technical scheme, the telescopic device comprises a supporting piece, a rotating column, a circular ring, an extrusion plate and a threaded sliding block, the supporting piece is arranged between the two protective upper frames, the end of the supporting piece is rotationally connected with the rotating column, the threaded sliding block is slidably connected into the rotating column, the extrusion plate is slidably connected into the rotating column, and the extrusion plate abuts against the threaded sliding block; and the end part of the extrusion plate is rotationally connected with a mounting ring. When large-range adjustment is needed, the threaded sliding block is sucked into the rotary column, the protective upper frame can be directly pulled for coarse adjustment, when fine adjustment is needed, the threaded sliding block is extruded out to be in threaded connection with the protective upper frame, stepless adjustment can be carried out, the elevator opening can be completely matched, and the mode of an insertion rod and an insertion hole is replaced; only fixed point positions can be fixed, and the elevator hole cannot be adapted.

Description

Technical Field

[0008] , ,

[0007] , , ,

[0009]

[0001] The utility model relates to the technical field of elevators, in particular to an elevator hole protection device. Background Technique

[0002] During the construction of building projects, the reserved holes in the elevator shaft are major sources of danger. Whether the protection is in place directly affects the safety management of the project and the personal safety of workers. Usually, the temporary edge protection with steel pipes and fasteners is adopted to meet the requirements of safety and civilized construction.

[0003] The conventional temporary edge protection uses steel pipes and fasteners to hold the wall tightly as the fixed points at the edge of the hole. However, during the construction of high-rise or super high-rise structures, as the floor height increases, the self-stability of the steel pipe and fastener protection in the elevator shaft is poor, and the influence of the upper and lower intersections is large, which is not conducive to the safety standard requirements of the project. The connection points to the wall cannot be tightened. During the erection, because the size of the pipe well door opening is not unified with the length modulus of the steel pipe, the steel pipe needs to be cut to meet the erection requirements, or the whole standardized protection railing is used. This method has a high cost, a certain loss rate, and the operation is very cumbersome, and the installation is time-consuming and laborious. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the steel pipe needs to be customized or cut to meet the requirements because the size of the pipe well door opening is not unified with the length modulus of the steel pipe during the erection in the background technique, and to propose an elevator hole protection device.

[0005] The technical solution of the utility model: An elevator hole protection device includes a lower protection frame, and an upper protection frame is slidably connected inside the lower protection frame. There are two lower protection frames and two upper protection frames, and the two lower protection frames and the two upper protection frames form a shape like the Chinese character 'ri'.

[0006] An expansion device, including a support member, a rotating column, a ring, a pressing plate and a threaded slider. A support member is arranged between the two upper protection frames. The end of the support member is rotatably connected to the rotating column. The threaded slider is slidably connected inside the rotating column. The pressing plate is slidably connected inside the rotating column. The pressing plate abuts against the threaded slider. The end of the pressing plate is rotatably connected to the mounting ring.

[0007] The rotating column extends into the upper protection frame, and the threaded slider is threadedly connected to the upper protection frame.

[0008] Optionally, multiple expansion devices are provided, respectively located at the connection between the two lower protection frames, the connection between the lower protection frame and the upper protection frame, and the connection between the two upper protection frames.

[0009] Optionally, the threaded slider slides radially along the column, the extrusion plate slides axially along the column, the ends of the threaded slider and the extrusion plate are provided with inclined surfaces, and a magnet is fixedly installed at the center of the column and near the threaded slider.

[0010] Optionally, the support member includes a support block, a central block, a pressure ring, and a linkage rod. The central block is fixedly installed in the middle of the support block, and the pressure ring is slidably connected inside the central block. The pressure ring is hinged to the circular ring through the linkage rod.

[0011] Optionally, a knob is rotatably connected inside the central block, and a first bevel gear is fixedly connected to the knob via a rotating shaft. A second bevel gear is fixedly connected to the end of the rotating column via a rotating shaft, and the first bevel gear and the second bevel gear are meshed together.

[0012] Optionally, the rotating shaft at the end of the rotating column is rotatably connected to the central block, the ring slides on the rotating shaft at the end of the rotating column, and the protective upper frame is slidably connected to the support block.

[0013] Optionally, a protective netting rewinding chamber is fixedly installed on the back of the lower protective frame, and a protective netting is wound up inside the protective netting rewinding chamber. Support pads are fixedly installed at the bottom of the lower protective frame and the top of the upper protective frame.

[0014] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0015] This utility model uses an expansion joint to extend and retract the lower and upper protective frames, thus adapting to the size of the elevator opening. It eliminates the need to cut steel pipes to meet construction requirements or use a single, standardized protective railing, reducing costs. The lower and upper protective frames are supported and positioned at the elevator opening using support pads, improving their installation stability. The device can be adjusted according to the opening size, and the protective net is retractable to prevent falls from heights, greatly reducing safety hazards, lowering labor costs, improving construction efficiency, and making construction very convenient.

[0016] Furthermore, when a wide range of adjustments is needed, the threaded slider can be drawn into the rotating column, allowing the upper protective frame to be pulled directly for coarse adjustments. When fine adjustments are needed, the threaded slider can be squeezed out to connect with the threaded upper protective frame for stepless adjustments, thus perfectly adapting to elevator openings. This method, which replaces the insertion rod and insertion hole, can only fix fixed points and cannot adapt to elevator openings.

[0017] Furthermore, a folding frame is hinged between two adjacent sliders. When the slider at the edge is pulled, multiple sliders slide simultaneously, and the distance between two adjacent sliders is the same. This avoids the situation where the gap between two sliders is too large, making it impossible to intercept people and posing a safety hazard. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of one embodiment of the present invention is provided;

[0019] Figure 2 This is a cross-sectional view of the support block structure;

[0020] Figure 3 This is a schematic diagram of the pressure ring structure;

[0021] Figure 4 This is a schematic diagram of a threaded slider structure;

[0022] Figure 5 This is a schematic diagram of the front view sectional view of the spiral column structure.

[0023] Reference numerals: 1. Lower protective frame; 2. Upper protective frame; 3. Expansion joint; 31. Support block; 32. Center block; 33. Knob; 34. First bevel gear; 35. Second bevel gear; 36. Rotating column; 37. Pressure ring; 38. Linkage rod; 39. Ring; 310. Threaded slider; 311. Extrusion plate; 4. Support pad; 5. Protective net winding chamber. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0026] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Embodiment 1

[0030] This embodiment provides an elevator opening protection device, as Figure 1 shown, which includes a lower protection frame 1. A upper protection frame 2 is slidably connected inside the lower protection frame 1. There are two lower protection frames 1 and two upper protection frames 2, and the two lower protection frames 1 and the two upper protection frames 2 form a shape like the Chinese character "ri". Telescopic devices 3 are provided at the joints between the two lower protection frames 1, at the joints between the lower protection frame 1 and the upper protection frame 2, and at the joints between the two upper protection frames 2.

[0031] The telescopic devices 3 are used to achieve the telescoping of the lower protection frame 1 and the upper protection frame 2, so as to adapt to the size of the elevator opening. There is no need to cut off steel pipes to meet the construction requirements, or use a whole piece of standardized protective railing, which reduces costs.

[0032] A protective net winding bin 5 is fixedly installed on the back of the lower protection frame 1. A protective net is wound inside the protective net winding bin 5. Support pads 4 are fixedly installed at the bottom of the lower protection frame 1 and the top of the upper protection frame 2. The lower protection frame 1 and the upper protection frame 2 are supported on the elevator opening through the support pads 4 at the bottom of the lower protection frame 1 and the support pads 4 at the top of the upper protection frame 2 to fix the positions of the lower protection frame 1 and the upper protection frame 2. The shape like the Chinese character "ri" formed by the lower protection frame 1 and the upper protection frame 2 is adapted to the elevator opening through the telescoping of the lower protection frame 1 and the upper protection frame 2.

[0033] [[ID=​​​​​​​As shown, the expansion joint 3 includes a support member, a rotating column 36, a ring 39, a pressing plate 311, and a threaded slider 310. The support member is provided between the two protective upper frames 2. The support member includes a support block 31, a center block 32, a pressure ring 37, and a linkage rod 38. The center block 32 is fixedly installed in the middle of the support block 31. The pressure ring 37 is slidably connected inside the center block 32. The pressure ring 37 is hinged to the ring 39 through the linkage rod 38. The ring 39 slides on the rotating shaft at the end of the rotating column 36. The protective upper frame 2 is slidably connected to the support block 31.

[0036] The internal sliding connection of the rotating column 36 is a threaded slider 310, and the internal sliding connection of the rotating column 36 is a pressing plate 311. The pressing plate 311 abuts against the threaded slider 310. The end of the pressing plate 311 is rotatably connected to the mounting ring 39. The rotating column 36 extends into the interior of the protective upper frame 2, and the threaded slider 310 is threadedly connected to the protective upper frame 2.

[0037] A magnet is fixedly installed at the center of the rotating column 36, near the threaded slider 310. When the threaded slider 310 is not subjected to external force, it is attracted and adsorbed onto the rotating column 36 by the magnet at the center of the rotating column 36. At this time, the threaded slider 310 is retracted into the rotating column 36, which can quickly make the protective upper frame 2 slide on the rotating column 36.

[0038] The threaded slider 310 slides radially along the rotating column 36, and the extrusion plate 311 slides axially along the rotating column 36. Both the ends of the threaded slider 310 and the extrusion plate 311 are provided with inclined surfaces. By pushing the pressure ring 37, the linkage rod 38 pushes the ring 39. The ring 39 pushes the extrusion plate 311 to push the threaded slider 310 outward using the inclined surfaces, so that the threaded slider 310 engages with the upper protective frame 2, thereby enabling the upper protective frame 2 to be quickly extended and retracted to roughly fit the elevator opening. At this time, there are gaps between the lower protective frame 1 and the upper protective frame 2 and the elevator opening, and the stability is poor.

[0039] A knob 33 is rotatably connected inside the central block 32. The knob 33 is fixedly connected to a first bevel gear 34 via a rotating shaft. A second bevel gear 35 is fixedly connected to the end of the rotating column 36 via a rotating shaft. The first bevel gear 34 and the second bevel gear 35 are meshed together. Since the threaded slider 310 is threadedly connected to the upper protective frame 2, rotating the knob 33 causes the first bevel gear 34 to rotate. The rotation of the first bevel gear 34 causes the second bevel gear 35 to drive the rotating column 36 to rotate, so that the upper protective frame 2 moves with the rotation of the threaded slider 310. The rotation of the threaded slider 310 drives the upper protective frame 2 for fine adjustment, so that the lower protective frame 1 and the upper protective frame 2 are perfectly matched with the elevator opening, improving installation stability.

[0040] When the lower protective frame 1 and the upper protective frame 2 are fixed in position using a plug and a socket, only a fixed adjustment range can be achieved. However, stepless adjustment can be achieved by rotating the threaded slider 310. When a large range of adjustment is required, the threaded slider 310 is drawn into the rotating column 36, allowing the upper protective frame 2 to be pulled directly for coarse adjustment. When fine adjustment is required, the threaded slider 310 is pushed out to connect with the threaded upper protective frame 2, enabling stepless adjustment to perfectly fit the elevator opening.

[0041] In this embodiment, when it is necessary to adjust the lower protective frame 1 and the upper protective frame 2, the threaded slider 310 is drawn into the inside of the rotating column 36 by the magnet inside the rotating column 36, so that the upper protective frame 2 can be quickly slid for coarse adjustment. Then, the threaded slider 310 is threadedly connected to the upper protective frame 2 by sliding the pressing plate 311. The knob 33 is rotated to make the threaded slider 310 rotate, thereby making the upper protective frame 2 finely adjusted, so that the lower protective frame 1 and the upper protective frame 2 are fully adapted to the elevator opening, improving the installation stability.

[0042] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A protective device for elevator openings, characterized in that, Comprising: A protective lower frame (1), inside which a protective upper frame (2) is slidably connected; An expander (3), including a support member, a rotating column (36), a circular ring (39), a pressing plate (311) and a threaded slider (310). A support member is arranged between two protective upper frames (2). The end of the support member is rotatably connected to the rotating column (36). The threaded slider (310) is slidably connected inside the rotating column (36). The pressing plate (311) is slidably connected inside the rotating column (36). The pressing plate (311) abuts against the threaded slider (310). The end of the pressing plate (311) is rotatably connected to the mounting circular ring (39); The rotating column (36) extends into the protective upper frame (2), and the threaded slider (310) is threadedly connected to the protective upper frame (2).

2. The elevator opening protection device according to claim 1, characterized in that: A plurality of expanders (3) are provided, respectively located at the connection between two protective lower frames (1), the connection between the protective lower frame (1) and the protective upper frame (2), and the connection between two protective upper frames (2).

3. The elevator opening protection device according to claim 2, characterized in that: The threaded slider (310) slides radially along the rotating column (36), the pressing plate (311) slides axially along the rotating column (36). Bevels are provided at the ends of the threaded slider (310) and the pressing plate (311). A magnet is fixedly installed at the center of the rotating column (36) and close to the threaded slider (310).

4. The elevator opening protection device according to claim 3, characterized in that: The support member includes a support block (31), a central block (32), a pressing ring (37) and a linkage rod (38). The central block (32) is fixedly installed in the middle of the support block (31). The pressing ring (37) is slidably connected inside the central block (32). The pressing ring (37) is hinged to the circular ring (39) through the linkage rod (38).

5. The elevator opening protection device according to claim 4, characterized in that: A knob (33) is rotatably connected inside the central block (32). The knob (33) is fixedly connected to a first bevel gear (34) through a rotating shaft. The end of the rotating column (36) is fixedly connected to a second bevel gear (35) through a rotating shaft. The first bevel gear (34) is meshed and connected with the second bevel gear (35).

6. The elevator opening protection device according to claim 1, characterized in that: The rotating shaft at the end of the rotating column (36) is rotatably connected to the central block (32). The circular ring (39) slides on the rotating shaft at the end of the rotating column (36). The protective upper frame (2) is slidably connected to the support block (31).

7. The elevator opening protection device according to claim 1, characterized in that: A protective net winding bin (5) is fixedly installed on the back of the protective lower frame (1). A protective net is wound inside the protective net winding bin (5). Support pads (4) are fixedly installed at the bottom of the protective lower frame (1) and the top of the protective upper frame (2). Two protective lower frames (1) and two protective upper frames (2) form a shape like the Chinese character 'Ri'.

Images