Elevator shaft opening protection device

Abstract

The utility model discloses an elevator shaft opening protection device, which belongs to the technical field of building construction and comprises a main body and a fixing plate. Wherein the main body can be embedded into an elevator shaft opening, the main body comprises at least two protection plates which are sequentially connected in the first linear direction, and the adjacent protection plates are in sliding connection; in every two adjacent protection plates, one protection plate can slide in the direction close to or away from the other protection plate, so that the width of the main body is changed, the elevator shaft opening protection device can flexibly adapt to elevator shaft openings of different sizes, and high adaptability and universality are achieved. Besides, the fixing plates are arranged on the side walls of the protection plates located at the two ends in the first linear direction, the fixing plates are detachably connected with the inner side wall of the elevator shaft opening, drilling in the outer surface of the main body structure is avoided, and therefore the integrity of the main body structure is effectively protected.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to an elevator shaft protection device. Background Technology

[0002] During building construction, elevator installation is always carried out later, and the installation of elevator doors on each floor is even later. Therefore, in order to ensure construction safety and convenience, elevator openings and elevator shafts need to be protected before the elevator doors are fully installed to prevent accidental falls.

[0003] Traditional elevator shaft protection methods primarily rely on safety doors and protective barriers. These protective facilities are typically fixed using expansion bolts during installation, requiring drilling into the outer surface of the main structure. This process can easily damage the main structure, affecting subsequent wall and floor finishing work. Furthermore, because safety doors and barriers are fixed in size and cannot be adjusted, they can only be used for elevator shafts of one size. Different sizes of elevator shafts are generally not interchangeable, often requiring several sizes of safety doors or barriers to be installed for a single building, increasing costs during the project development process. Utility Model Content

[0004] The purpose of this utility model is to provide an elevator shaft protection device to solve the technical problems of existing elevator shaft protection facilities being prone to damage to the surface of the main structure during installation and having poor adaptability.

[0005] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0006] An elevator shaft protection device includes:

[0007] The main body is capable of being embedded inside an elevator shaft. The main body includes at least two protective plates connected sequentially along a first straight line, and adjacent protective plates are slidably connected. In two adjacent protective plates, one of the protective plates can slide in a direction that is closer to or farther away from the other protective plate, thereby changing the width of the main body.

[0008] A fixing plate is disposed on the side wall of the protective plate located at both ends in the first straight direction, and the fixing plate is detachably connected to the inner side wall of the elevator shaft opening.

[0009] Preferably, in two adjacent protective plates, one of the protective plates is provided with a slide rail at its bottom, the slide rail is U-shaped and opens upwards, and the other protective plate can be inserted into the slide rail and slidably connected to the slide rail.

[0010] Preferably, the elevator shaft protection device further includes a locking bolt, which can pass through the side wall of the slide rail and abut against another of the protective plates, thereby restricting the movement of the protective plate relative to the slide rail.

[0011] Preferably, a limiting member is provided at the end of the slide rail.

[0012] Preferably, the fixing plate has a threaded hole, and the fixing plate is bolted to the inner wall of the elevator shaft through the threaded hole.

[0013] Preferably, there are two threaded holes, which are symmetrically arranged about the protective plate.

[0014] Preferably, multiple fixing plates are provided, and the multiple fixing plates are arranged at intervals along the height direction of the protective plate.

[0015] Preferably, the protective plate includes a support frame and a plurality of support rods, the support rods being fixedly connected within the support frame, and the plurality of support rods being arranged at intervals along a first straight line direction.

[0016] Preferably, a first reinforcing plate is provided in the middle of the support frame.

[0017] Preferably, a second reinforcing plate is provided at the bottom of the support frame.

[0018] The beneficial effects of this utility model are:

[0019] The elevator shaft protection device proposed in this utility model has a main body that can be embedded inside the elevator shaft. Compared with the traditional external fixing method, the embedded design enhances the stability and safety of the protection device and reduces the impact of external collisions. Furthermore, the fixing plate located on the side wall of the protection plate is detachably connected to the inner wall of the elevator shaft, avoiding drilling holes on the outer surface of the main structure and effectively protecting the integrity of the main structure. In addition, the main body includes at least two slidably connected protection plates, allowing for changes in the width of the main body. This enables the elevator shaft protection device proposed in this utility model to flexibly adapt to elevator shafts of different sizes, solving the problems of fixed and non-adjustable protection device sizes in existing technologies, and the increased cost and management complexity caused by requiring multiple sizes of protection facilities for a single building. This improves the versatility and adaptability of the protection device and reduces engineering costs. Attached Figure Description

[0020] Figure 1 This is a first structural schematic diagram of the elevator shaft protection device provided in Embodiment 1 of this utility model;

[0021] Figure 2 This is a schematic diagram of the second structure of the elevator shaft protection device provided in Embodiment 1 of this utility model.

[0022] In the picture:

[0023] 1. Main body; 11. Protective plate; 111. Support frame; 112. Support rod; 12. Slide rail; 13. First reinforcing plate; 14. Second reinforcing plate;

[0024] 2. Fixing plate; 21. Threaded hole. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] See Figure 1 and Figure 2The elevator shaft protection device provided in this embodiment of the utility model includes a main body 1 and a fixing plate 2. The main body 1 can be embedded inside the elevator shaft and includes at least two protective plates 11 connected sequentially along a first straight line direction. Adjacent protective plates 11 are slidably connected. Among two adjacent protective plates 11, one of the protective plates 11 can slide in a direction that is closer to or farther away from the other protective plate 11, thereby changing the width of the main body 1. The fixing plate 2 is disposed on the side wall of the protective plates 11 located at both ends in the first straight line direction, and the fixing plate 2 is detachably connected to the inner side wall of the elevator shaft.

[0030] Here, the direction of the first straight line is defined as the width direction of the main body 1. For the convenience of describing in conjunction with the attached drawings, the directions in the following text are described with reference to the directions shown in the attached drawings, but are not limited thereto.

[0031] The elevator shaft protection device proposed in this utility model has a main body 1 that can be embedded inside the elevator shaft. Compared with the traditional external fixing method, the embedded design enhances the stability and safety of the protection device and reduces the impact of external collisions. Furthermore, the fixing plate 2 located on the side wall of the protective plate 11 is detachably connected to the inner wall of the elevator shaft, avoiding drilling holes on the outer surface of the main structure and effectively protecting the integrity of the main structure. In addition, the main body 1 includes at least two slidably connected protective plates 11, which can change the width of the main body 1. This allows the elevator shaft protection device proposed in this utility model to flexibly adapt to elevator shafts of different sizes, solving the problems of fixed and non-adjustable protective device sizes in the prior art, and the increased cost and management complexity caused by the need for multiple sizes of protective facilities for a single building. This improves the versatility and adaptability of the protection device and reduces engineering costs.

[0032] The specific structure of the elevator shaft protection device is described below.

[0033] Regarding the specific structure of the protective plate 11: The protective plate 11 includes a support frame 111 and multiple support rods 112. The support rods 112 are fixedly connected within the support frame 111, and the multiple support rods 112 are arranged at intervals along a first straight line. This structure effectively reduces the weight of the protective plate 11 while ensuring its strength and stability. The spaced arrangement of the support rods 112 provides sufficient support while reducing material usage, making the entire protective device easier to handle and install, and reducing the labor intensity of construction workers. Secondly, the spaced arrangement of the multiple support rods 112 forms a certain perforated structure, increasing the ventilation and visibility of the protective plate 11. Improved ventilation helps reduce wind resistance and lowers the pressure on the protective device in strong wind environments; enhanced visibility allows construction workers to observe the situation inside the elevator shaft and promptly identify and address any potential problems.

[0034] Since the middle part of the protective plate 11 is the area where external forces are concentrated, a first reinforcing plate 13 is provided in the middle of the support frame 111. The first reinforcing plate 13 effectively distributes the stress in this area, improves the load-bearing capacity of the protective plate 11 in the middle position, enables it to better resist external impacts and pressures, and enhances the reliability and safety of the protective device.

[0035] Furthermore, since the bottom is in direct contact with the ground or other foundation structures, it is susceptible to wear and impact. Therefore, a second reinforcing plate 14 is provided at the bottom of the support frame 111. The second reinforcing plate 14 effectively protects the bottom of the protective plate 11 from damage, improving its wear resistance and impact resistance. It also reduces swaying or tilting caused by uneven force on the bottom, further enhancing the safety of the entire protective device.

[0036] In this embodiment, both the first reinforcing plate 13 and the second reinforcing plate 14 can be made of galvanized steel. In other embodiments, aluminum alloy plates, carbon fiber plates, etc., can also be used, and there is no limitation here.

[0037] Specifically, in two adjacent protective plates 11, one protective plate 11 has a slide rail 12 at its bottom. The slide rail 12 is U-shaped with its opening facing upwards. The other protective plate 11 can be inserted into and slidably connected to the slide rail 12. The upward-facing design of the U-shaped slide rail 12 effectively prevents the protective plate 11 from accidentally dislodging during sliding, enhancing the stability and reliability of the sliding connection. This ensures that the connection between adjacent protective plates 11 is firm and will not loosen or detach when adjusting the width of the protective device. Furthermore, the U-shaped slide rail 12 is simple and practical, easy to manufacture, and reduces production costs. At the same time, its sliding connection method is easy to operate, allowing operators to easily adjust the position of the protective plate 11 according to the actual dimensions of the elevator shaft opening, improving the efficiency of installation and adjustment.

[0038] In other embodiments, one of the two adjacent protective plates 11 may have a roller mounted on its bottom, while the other protective plate 11 may have a track that matches the roller. The roller rolls within the track, enabling the two adjacent protective plates 11 to slide. This is not a limitation, as long as a sliding connection between the two adjacent protective plates 11 can be achieved.

[0039] Furthermore, a limiting component is provided at the end of the slide rail 12. The limiting component can effectively limit the sliding range of the protective plate 11 on the slide rail 12, prevent the protective plate 11 from sliding excessively and falling off the slide rail 12, and ensure that the protective device can always effectively play its protective role.

[0040] Specifically, the limiting component includes a baffle and a buffer spring. A baffle is located at the end of the slide rail 12, and a buffer spring is mounted on the baffle facing the protective plate 11. When the protective plate 11 slides along the slide rail 12 to near its end, it first contacts the buffer spring. The buffer spring acts as a buffer, reducing the impact force between the protective plate 11 and the baffle. The baffle then ultimately prevents the protective plate 11 from moving further, effectively limiting the range of movement of the protective plate 11 relative to the slide rail 12 and preventing the protective plate 11 from detaching from the slide rail 12.

[0041] Furthermore, the elevator shaft protection device also includes a locking bolt, which passes through the side wall of the slide rail 12 and abuts against another protective plate 11, thereby restricting the movement of the protective plate 11 relative to the slide rail 12. When it is necessary to adjust the position of the protective plate 11, the locking bolt is loosened, allowing the protective plate 11 to slide freely within the slide rail 12. After the protective plate 11 has slid to the desired position and can fit the width of the elevator shaft, the locking bolt is rotated to make it tightly abut against the side wall of the protective plate 11, generating sufficient friction to restrict the movement of the protective plate 11 relative to the slide rail 12, thereby fixing the protective plate 11 in the current position.

[0042] The protective plate 11 and the inner wall of the elevator shaft are connected by a fixing plate 2. Specifically, the fixing plate 2 has threaded holes 21, and the fixing plate 2 is bolted to the inner wall of the elevator shaft through the threaded holes 21. The bolted connection has high connection strength, ensuring a tight and stable connection between the fixing plate 2 and the inner wall of the elevator shaft, thereby effectively enhancing the fixing effect of the entire protective device at the elevator shaft. Furthermore, the bolted connection method is relatively simple to operate, facilitating installation and disassembly by operators, improving construction efficiency, and also facilitating later maintenance or replacement of the protective device. In addition, the bolted connection has good versatility and replaceability; bolts and other connecting parts are easy to obtain and replace, reducing maintenance costs and construction difficulty.

[0043] In other embodiments, the fixing plate 2 and the inner wall of the elevator shaft can also be connected by a pin, tenon and mortise or buckle, etc., which is not limited here.

[0044] Specifically, there are two threaded holes 21, which are symmetrically arranged about the protective plate 11. This makes the connection between the fixing plate 2 and the inner wall of the elevator shaft more uniform, avoiding the problem of stress concentration and instability that may be caused by single-point connection, thereby greatly improving the overall stability and reliability of the protective device.

[0045] More specifically, multiple fixing plates 2 are provided, and the multiple fixing plates 2 are arranged at intervals along the height direction of the protective plate 11, which increases the contact area between the protective device and the inner wall of the elevator shaft, disperses the force borne by the protective device, and enables the entire device to be effectively supported and fixed at various height positions, thereby improving the stability of the protective device in the elevator shaft.

[0046] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An elevator shaft protection device, characterized in that, include: The main body (1) is capable of being embedded inside the elevator shaft. The main body (1) includes at least two protective plates (11) connected sequentially along a first straight line direction. Adjacent protective plates (11) are slidably connected. In two adjacent protective plates (11), one of the protective plates (11) can slide in a direction that is closer to or farther away from the other protective plate (11), thereby changing the width of the main body (1). A fixing plate (2) is disposed on the side wall of the protective plate (11) located at both ends in the first straight direction. The fixing plate (2) is detachably connected to the inner side wall of the elevator shaft.

2. The elevator shaft protection device according to claim 1, characterized in that, Of the two adjacent protective plates (11), one of the protective plates (11) is provided with a slide rail (12) at its bottom. The slide rail (12) is U-shaped and has an upward opening. The other protective plate (11) can be inserted into the slide rail (12) and slidably connected to the slide rail (12).

3. The elevator shaft protection device according to claim 2, characterized in that, The elevator shaft protection device also includes a locking bolt, which can pass through the side wall of the slide rail (12) and abut against another protective plate (11), thereby restricting the movement of the protective plate (11) relative to the slide rail (12).

4. The elevator shaft protection device according to claim 2, characterized in that, The end of the slide rail (12) is provided with a limiting member.

5. The elevator shaft protection device according to claim 1, characterized in that, The fixing plate (2) has a threaded hole (21), and the fixing plate (2) is bolted to the inner wall of the elevator shaft through the threaded hole (21).

6. The elevator shaft protection device according to claim 5, characterized in that, There are two threaded holes (21), and the two threaded holes (21) are symmetrically arranged about the protective plate (11).

7. The elevator shaft protection device according to claim 1, characterized in that, Multiple fixing plates (2) are provided, and the multiple fixing plates (2) are arranged at intervals along the height direction of the protective plate (11).

8. The elevator shaft protection device according to claim 1, characterized in that, The protective plate (11) includes a support frame (111) and a plurality of support rods (112). The support rods (112) are fixedly connected to the support frame (111), and the plurality of support rods (112) are arranged at intervals along a first straight line direction.

9. The elevator shaft protection device according to claim 8, characterized in that, A first reinforcing plate (13) is provided in the middle of the support frame (111).

10. The elevator shaft protection device according to claim 8, characterized in that, The bottom of the support frame (111) is provided with a second reinforcing plate (14).

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