An adjustable elevator shaft guard

Abstract

The utility model discloses an adjustable elevator shaft protection device, including fixed component and adjusting assembly, fixed component mainly comprises upper cross bar, lower cross bar and railing, and upper cross bar and lower cross bar are long -tube, and a plurality of railings are fixedly arranged between upper cross bar and lower cross bar at intervals, and adjusting assembly mainly comprises upper slide rail, lower slide rail and slide bar, and a plurality of slide bars are arranged between upper slide rail and lower slide rail, and the upper end and lower end of slide bar are slidably connected with upper slide rail and lower slide rail respectively, and the slide bar is equipped with connecting rod mechanism that adjusts the distance between the slide bar, and upper cross bar and lower cross bar are respectively sleeved with upper slide rail and lower slide rail, and one end of upper cross bar and lower cross bar and one end of upper slide rail and lower slide rail are respectively equipped with wall fixing piece. Compared with prior art, the utility model has good structural stability and is convenient to operate.

Description

Technical Field

[0001] This utility model pertains to auxiliary devices for building construction, specifically relating to an adjustable elevator shaft protection device. Background Technology

[0002] In high-rise building construction, elevator shaft openings are considered a hazard and have always been a core focus of project safety management. The conventional method for protecting elevator shaft openings involves using protective railings of appropriate size to cover the opening, and then securing them to the wall using expansion bolts and additional wooden blocks. This method results in relatively fixed railing sizes, making it unsuitable for different shaft sizes. This necessitates the use of various sizes of railings to meet construction needs, increasing project costs.

[0003] To address the aforementioned issues, patent document CN216109886U discloses a retractable qualitative protective device. This device utilizes a main frame and two sub-frames slidably connected to it to block elevator shaft openings. A limiting mechanism positions the sub-frames, adapting to elevator shaft openings of different sizes. However, this solution has several practical problems: the sub-frames are slidably connected to the main frame via top and bottom rails, relying on positioning bolts for positioning, and are not actually connected to the wall. The main frame is only fixed to the wall, resulting in insufficient structural stability. Furthermore, constructing the protective device requires sliding the sub-frames along the rails towards both ends of the main frame. Sliding stops when the two sub-frames contact the edge areas, and the limiting mechanism then fixes the sub-frames in place, making the overall operation cumbersome. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing elevator shaft protection devices and provide an adjustable elevator shaft protection device with better structural stability and convenient operation.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: An adjustable elevator shaft protection device, including a fixing component and an adjusting component. The fixing component mainly consists of an upper crossbar, a lower crossbar, and railings. The upper and lower crossbars are long tubes, and several railings are fixed between the upper and lower crossbars at intervals. The adjusting component mainly consists of an upper slide rail, a lower slide rail, and sliding rods. Several sliding rods are arranged between the upper and lower slide rails. The upper and lower ends of the sliding rods are slidably connected to the upper and lower slide rails, respectively. A linkage mechanism is provided between the sliding rods to adjust their spacing. The upper and lower crossbars are respectively sleeved on the upper and lower slide rails. A wall fixing component is provided at one end of the upper and lower crossbars and at one end of the upper and lower slide rails.

[0006] Optionally, the lower crossbar is provided with a guard rail, and a kick plate is inserted into the guard rail.

[0007] Optionally, the guardrail is equipped with an early warning component, which mainly consists of a housing, a control module, a wireless communication module, a power supply, an alarm, and an infrared ranging sensor. The control module, wireless communication module, power supply, alarm, and infrared ranging sensor are integrated on the housing, and the infrared light from the infrared ranging sensor is projected onto the wall on one side of the elevator shaft opening.

[0008] Optionally, the upper crossbar is provided with a positioning screw, which positions the upper slide rail. A connecting rod is fixed between the upper slide rail and the lower slide rail. The wall fastener is an "L"-shaped steel plate. The wall fastener has a mounting hole on one side perpendicular to the upper crossbar, and a nut is provided at the mounting hole. The fixing component and the adjusting component are fixedly connected to the wall through the wall fastener and bolts.

[0009] Optionally, the upper slide rail is provided with a limiting screw, which limits the sliding of the slide rod.

[0010] The method of using this utility model is as follows: First, place the sliding rod of the adjusting component between the upper and lower sliding rails. Second, insert the upper and lower sliding rails of the adjusting component into the upper and lower crossbars of the fixing component, respectively. Next, fix the fixing component to one side of the elevator shaft opening using the wall fixing component. Then, pull the upper and lower sliding rails of the adjusting component to fix the adjusting component to the other side of the elevator shaft opening using the wall fixing component. Then, unfold the sliding rod to cover the opening through the linkage mechanism. Finally, check the overall structural stability to complete the elevator shaft opening protection.

[0011] The principle of this utility model is as follows: A portion of the opening is covered by a fixed component, while the remaining portion is covered by an adjusting component. Since the upper and lower slide rails of the adjusting component are sleeved with the upper and lower crossbars of the fixed component, the upper and lower slide rails of the adjusting component can flexibly extend according to the size of the opening and are fixed to the wall through wall fasteners to form a covering frame. Then, the sliding rods that are slidably connected to the upper and lower slide rails are deployed through a linkage mechanism to cover the opening. The fixed component and the wall (connected by wall fasteners), the adjusting component and the wall (connected by wall fasteners), and the fixed component and the adjusting component (sleeved) are constructed as a whole, so that the adjusting component can adapt to openings of different sizes (lengths). The overall installation is convenient and the structure has good stability.

[0012] Compared with the prior art, the present invention has at least the following advantages: the present invention has better structural stability and is easy to operate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; The following components are labeled as follows in the attached drawings: upper horizontal bar 1, lower horizontal bar 2, railing 3, upper slide rail 4, lower slide rail 5, slide bar 6, linkage mechanism 7, wall fixing component 8, kick plate 9, warning component 10, positioning screw 11, connecting rod 12, and limit screw 13. Detailed Implementation

[0014] The specific embodiments of this utility model are described below, but the embodiments are merely illustrative and not limiting.

[0015] refer to Figure 1 In this embodiment, an adjustable elevator shaft protection device includes a fixing component and an adjusting component. The fixing component mainly consists of an upper crossbar 1, a lower crossbar 2, and railings 3. The upper and lower crossbars are 40mm*40mm galvanized square tubes with a wall thickness of 2mm. Several railings are vertically welded between the upper and lower crossbars at intervals. The adjusting component mainly consists of an upper slide rail 4, a lower slide rail 5, and slide rods 6. The upper and lower slide rails are made of metal square tubes with a concave cross-section and a wall thickness of 2mm. Several railings are vertically welded between the upper and lower crossbars. The slide bar is set between the upper slide rail and the lower slide rail. The upper and lower ends of the slide bar are slidably connected to the upper slide rail and the lower slide rail, respectively. A linkage mechanism 7 is provided between the slide bars to adjust their spacing. The linkage mechanism is a four-bar linkage mechanism with four movable points. The left and right movable points are respectively connected to the adjacent slide bars. The upper crossbar and the lower crossbar are respectively sleeved on the upper slide rail and the lower slide rail. A wall fixing component 8 is provided at one end of the upper crossbar and the lower crossbar, as well as at one end of the upper slide rail and the lower slide rail. The wall fixing component is a combination of mounting plate, pre-embedded expansion bolts and nuts.

[0016] In this embodiment, two specifications are preset: one is: the fixed component is 800mm long and 1800mm high, the railing spacing is 110mm, the adjusting component is 500mm long and 1790mm high, and the shaft size range that can be adapted is 900-1200mm; the other is: the fixed component is 1200mm long and 1800mm high, the railing spacing is 110mm, the adjusting component is 500mm long and 1790mm high, and the shaft size range that can be adapted is 1300-1600mm. The above two specifications can be applied to the vast majority of elevator shafts.

[0017] In this embodiment, in order to reduce the impact of external forces on the guardrail and sliding bar, a guard rail is provided on the lower crossbar. The guard rail is formed by the gap between the guardrail and a welded baffle. A kick plate 9 is inserted into the guard rail, and the kick plate covers the lower part of the guardrail and sliding bar.

[0018] In this embodiment, in order to prevent unplanned demolition by workers and monitor the protective status, an early warning component 10 is fixed on the guardrail. The early warning component mainly consists of a housing, a control module, a wireless communication module, a power supply, an alarm, and an infrared ranging sensor. The control module, wireless communication module, power supply, alarm, and infrared ranging sensor are integrated on the housing. The infrared light from the infrared ranging sensor shines on the wall on one side of the elevator shaft opening. Through the infrared ranging sensor, when the displacement of the protective device exceeds the allowable deviation value (excessive external impact causing protective failure) or when it is displaced (unplanned demolition by workers), the alarm will be triggered, and the information will be transmitted to the management center through the wireless communication module.

[0019] In this embodiment, to avoid damage to the wall structure during fixing, a positioning screw 11 is provided on the upper horizontal bar. The positioning screw positions the upper slide rail, and a connecting rod 12 is fixed between the upper slide rail and the lower slide rail. The wall fixing component is an "L"-shaped steel plate. The wall fixing component has an installation hole on one side perpendicular to the upper horizontal bar, and a nut is provided at the installation hole. The fixing component and the adjusting component are fixedly connected to the wall through the wall fixing component and bolts. During installation, the sleeve length of the horizontal bar and the slide rail is adjusted according to the size of the opening so that the entire frame can be placed into the opening. The four "L"-shaped steel plates contact the four corners of the wall. The sleeve length of the horizontal bar and the slide rail is positioned by the positioning screw to make them form a whole. The bolt is screwed into the nut, and one end of the bolt abuts against the wall so that the protective device is locked in the opening.

[0020] In this embodiment, in order to prevent the slide rod from sliding off the slide rail, a limiting screw 13 is provided on the upper slide rail to limit the sliding of the slide rod.

[0021] The above description is merely a preferred embodiment of this utility model and is not intended to limit this embodiment in any way. Any person skilled in the art can make many possible variations and modifications to this utility model using the disclosed methods and techniques, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model; all such modifications shall still fall within the protection scope of this utility model.

Claims

1. An adjustable elevator shaft protection device, comprising a fixing component and an adjusting component, characterized in that: The fixing component mainly consists of an upper horizontal bar (1), a lower horizontal bar (2) and a railing (3). The upper and lower horizontal bars are long tubes, and several railings are fixed between the upper and lower horizontal bars at intervals. The adjusting component mainly consists of an upper slide rail (4), a lower slide rail (5) and a slide rod (6). Several slide rods are set between the upper and lower slide rails. The upper and lower ends of the slide rods are slidably connected to the upper and lower slide rails respectively. A linkage mechanism (7) for adjusting the spacing between the slide rods is provided. The upper and lower horizontal bars are respectively sleeved on the upper and lower slide rails. A wall fixing component (8) is provided at one end of the upper and lower horizontal bars and at one end of the upper and lower slide rails respectively.

2. The adjustable elevator shaft protection device according to claim 1, characterized in that: The lower crossbar is equipped with a guard rail, and a kick plate (9) is inserted into the guard rail.

3. The adjustable elevator shaft protection device according to claim 1, characterized in that: The guardrail is equipped with an early warning component (10). The early warning component mainly consists of a housing, a control module, a wireless communication module, a power supply, an alarm, and an infrared ranging sensor. The control module, the wireless communication module, the power supply, the alarm, and the infrared ranging sensor are integrated on the housing. The infrared light from the infrared ranging sensor shines on the wall on one side of the elevator shaft opening.

4. The adjustable elevator shaft protection device according to claim 1, characterized in that: The upper crossbar is provided with a positioning screw (11), which positions the upper slide rail. A connecting rod (12) is fixed between the upper slide rail and the lower slide rail. The wall fastener is an "L" shaped steel plate. The wall fastener has an installation hole on one side perpendicular to the upper crossbar. A nut is provided at the installation hole. The fixing component and the adjusting component are fixedly connected to the wall through the wall fastener and bolts.

5. An adjustable elevator shaft protection device according to claim 1, characterized in that: The upper slide rail is equipped with a limit screw (13), which limits the sliding of the slide rod.

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