Multi-floor pay-off hole protection device

By using connectors, drive mechanisms, and counterweights in multi-story buildings to achieve synchronous operation of the cable laying hole cover, the problems of cumbersome operation and safety hazards in multi-story cable laying hole protection are solved. Synchronous opening and closing are achieved, improving safety and operational stability.

CN224259948UActive Publication Date: 2026-05-19SICHUAN THIRD CONSTR ENG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN THIRD CONSTR ENG CO LTD
Filing Date
2025-06-30
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In multi-story buildings, the lack of a unified and coordinated mechanism for the protection of cable-laying holes leads to cumbersome operations and potential safety hazards. In particular, the lack of synchronization in protection between upper and lower floors can easily cause safety accidents.

Method used

The cover plates are linked by connectors and equipped with drive mechanisms and counterweights to achieve synchronous opening and closing of multiple cover plates. They are fixed to the side of each floor slab using mounting brackets. Buffers are installed on the cover plates to reduce impact. Connectors connect all cover plates in series to achieve synchronous action. Counterweights provide gravity balance to reduce driving torque.

Benefits of technology

It enables the synchronous opening and closing of multi-story cable laying holes, eliminating the cumbersome operation and lag in traditional methods, improving safety and operational stability, reducing the driving torque requirement, and the buffer protects the floor and cover plate, reducing noise and wear.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224259948U_ABST
    Figure CN224259948U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of building construction, in particular to a multi-floor pay-off hole protection device. The device comprises a mounting seat, a cover plate, a connecting piece, a counterweight piece and a driving mechanism, the plurality of mounting seats are respectively mounted on one side of a pay-off hole in each floor; the cover plate is rotationally connected with the mounting base, the cover plate is constructed to be suitable for covering the pay-off hole, and a buffer piece used for making contact with a floor is arranged on the cover plate; the connecting pieces are connected with the cover plates, so that all the cover plates are driven by the connecting pieces to rotate synchronously; the counterweight piece is connected with the bottom layer cover plate; and the driving mechanism is connected with the top-layer cover plate to drive the top-layer cover plate to rotate. Linkage opening and closing of the pay-off hole cover plates in multiple floors can be achieved, and operation convenience is relatively high.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of building construction technology, specifically to a protective device for multi-story cable laying holes. Background Technology

[0002] Safety protection of multi-story layout openings has always been a major concern during building construction. Traditionally, protective measures for layout openings have often been inadequate.

[0003] In multi-story buildings, there is a lack of effective and unified coordination mechanisms for the protection of cable laying holes on each floor. Cable laying holes on each floor are often protected independently. When cable laying operations are required, the protective devices must be opened one by one on each floor. This is not only cumbersome, but also may lead to asynchronous protection between floors, resulting in gaps. People or objects can easily fall through these gaps, causing safety accidents. Utility Model Content

[0004] The purpose of this application is to provide a multi-story cable laying hole protection device, which links the cover plates together through connectors and is equipped with a drive mechanism and counterweight to drive the connection action, so that multiple cover plates can be opened and closed simultaneously, solving the problem of cumbersome operation and safety hazards caused by the need to open the protection device layer by layer in the existing method.

[0005] This application is achieved through the following technical solution:

[0006] A multi-story cable laying hole protection device includes:

[0007] Mounting brackets, wherein multiple mounting brackets are respectively used for installation on one side of the cable laying hole in each floor;

[0008] A cover plate, rotatably connected to the mounting base, the cover plate being configured to cover the cable laying hole, wherein the cover plate is provided with a buffer for contacting the floor surface;

[0009] A connector, which is connected to the cover plate so that all the cover plates rotate synchronously under the drive of the connector;

[0010] A counterweight, which is connected to the bottom cover plate;

[0011] A drive mechanism is connected to the top cover plate to drive the top cover plate to rotate.

[0012] The multi-story cable-laying hole protection device provided in this application uses mounting bases to firmly fix the device to the side of the cable-laying hole on each floor slab. The cover plate can flexibly cover the hole by rotating the connection. The buffer on the cover plate effectively avoids rigid impact on the floor when the cover plate closes, which protects the floor and reduces wear and noise of the cover plate itself. The cover plates of all floors are connected in series by the connector, so that when the top cover plate is driven by the drive mechanism to rotate, it can synchronously pull the cover plates of all floors below to perform completely consistent opening or closing actions, eliminating the tediousness and lag of the traditional method that requires manual operation layer by layer. The counterweight connected to the bottom cover plate provides gravity balance, reduces the opening torque required by the drive mechanism, makes the synchronous opening action smoother and less labor-intensive, and helps the cover plate to close and reset more reliably when the driving force is lost.

[0013] In some alternative embodiments, the connector includes multiple connecting segments, each of which is rotatably connected to two adjacent cover plates.

[0014] In some alternative embodiments, the connector is configured as a flexible element.

[0015] In some alternative embodiments, the connector is configured as a cable that passes sequentially through all the cover plates, each cover plate being connected to the connector by a fastener.

[0016] In some alternative embodiments, the fastener is configured as an arched handle, the connector extends through the arched handle, and the connector has limiting structures on segments located on both sides of the arched handle.

[0017] In some alternative embodiments, the limiting structure is configured as a knotted structure formed by knotting.

[0018] In some alternative embodiments, the buffer is configured as a rubber layer that is adhered to the cover plate.

[0019] In some optional embodiments, the thickness of the rubber layer is not less than 5 mm.

[0020] In some alternative embodiments, the drive mechanism includes:

[0021] A pulley, the pulley being installed on a floor;

[0022] A winding assembly for installation on a floor;

[0023] The cable body has one end connected to the winding assembly and the other end connected to the top cover plate.

[0024] In some alternative embodiments, the counterweight is provided with a spring, and in the working state, the spring is located below the counterweight.

[0025] Compared with the prior art, this application has the following advantages and beneficial effects:

[0026] The multi-story cable-laying hole protection device provided in this application uses mounting bases to firmly fix the device to the side of the cable-laying hole on each floor slab. The cover plate can flexibly cover the hole by rotating the connection. The buffer on the cover plate effectively avoids rigid impact on the floor when the cover plate closes, which protects the floor and reduces wear and noise of the cover plate itself. The cover plates of all floors are connected in series by the connector, so that when the top cover plate is driven by the drive mechanism to rotate, it can synchronously pull the cover plates of all floors below to perform completely consistent opening or closing actions, eliminating the tediousness and lag of the traditional method that requires manual operation layer by layer. The counterweight connected to the bottom cover plate provides gravity balance, reduces the opening torque required by the drive mechanism, makes the synchronous opening action smoother and less labor-intensive, and helps the cover plate to close and reset more reliably when the driving force is lost. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the embodiments of this application and form part of this application, do not constitute a limitation on the embodiments of this application. In the drawings:

[0028] Figure 1 A schematic diagram of the multi-story cable laying hole protection device in use provided in the embodiments of this application;

[0029] Figure 2 This is a schematic diagram of the cover plate installation structure provided in an embodiment of this application;

[0030] Figure 3 This is a schematic diagram of the counterweight structure provided in an embodiment of this application.

[0031] The attached diagram shows the markings and corresponding component names:

[0032] 1-Mounting base, 2-Cover plate, 3-Connector, 4-Counterweight, 5-Limit hinge, 6-Buffer, 7-Arch handle, 8-Rubber pad, 9-Spring, 10-Pulley, 11-Winding assembly. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this application are only for explaining this application and are not intended to limit this application.

[0034] like Figures 1-3As shown in the figure, this application provides a multi-story cable laying hole protection device, which includes a mounting base 1, a cover plate 2, a connector 3, a counterweight 4, and a drive mechanism; multiple mounting bases 1 are respectively used to install on one side of the cable laying hole in each floor; the cover plate 2 is rotatably connected to the mounting base 1, and the cover plate 2 is constructed to cover the cable laying hole, wherein the cover plate 2 is provided with a buffer 6 for contacting the floor surface; the connector 3 is connected to the cover plate 2 so that all the cover plates 2 rotate synchronously under the drive of the connector 3; the counterweight 4 is connected to the bottom cover plate 2; the drive mechanism is connected to the top cover plate 2 to drive the top cover plate 2 to rotate.

[0035] In this embodiment, the mounting base 1 can be made of 100*18 wood strips. The mounting base 1 can be fixed to the top floor surface with cement nails. The mounting base 1 and the floor surface can be bonded with polyurethane nail-free adhesive to ensure the stability of the mounting base 1.

[0036] In this embodiment, the cover plate 2 is usually rectangular, the thickness of the cover plate 2 can be configured to 18mm, and the size of the cover plate 2 can be configured to 300*300mm, that is, the cover plate 2 is a square plate, so as to adapt to most specifications of wire holes. The cover plate 2 can be rounded to prevent scratches.

[0037] In this embodiment of the application, the cover plate 2 and the mounting base 1 can be connected by a limiting hinge 5 to form a rotational connection, and the number of limiting hinges 5 can be configured to be two.

[0038] In this embodiment, the top cover plate 2 and the bottom cover plate 2 are the cover plate 2 located on the uppermost floor and the cover plate 2 located on the lowermost floor, respectively, when the device is in use.

[0039] In use, the drive mechanism drives the connecting piece 3 to move, and the connecting piece 3 simultaneously drives all the cover plates 2 to open synchronously on all floors. After the driving force provided by the drive mechanism is removed, the connecting piece 3 moves under the gravity of the counterweight 4, thereby driving all the cover plates 2 to close synchronously on all floors. Since the cover plate 2 is equipped with a buffer 6, even when the cover plate 2 is held by the gravity of the counterweight 4, the buffer 6 can absorb a large impact when the cover plate 2 comes into contact with the floor, thereby ensuring the structural integrity of the cover plate 2 and the floor.

[0040] The multi-story cable-laying hole protection device provided in this application embodiment uses the mounting base 1 to firmly fix the device to the side of the cable-laying hole on each floor slab. The cover plate 2 can flexibly cover the hole by rotating the connection. The buffer 6 set on the cover plate 2 effectively avoids the rigid impact on the floor when the cover plate 2 is closed, which not only protects the floor but also reduces the wear and noise of the cover plate 2 itself. The cover plates 2 of all floors are connected in series by the connector 3, so that when the top cover plate 2 is driven by the drive mechanism to rotate, it can synchronously pull the cover plates 2 of all floors below to perform completely consistent opening or closing actions, eliminating the tediousness and lag of the traditional method that requires manual operation layer by layer. The counterweight 4 connected to the bottom cover plate 2 provides gravity balance, reduces the opening torque required by the drive mechanism, makes the synchronous opening action smoother and less labor-intensive, and helps the cover plate 2 to more reliably close and reset automatically when the driving force is lost.

[0041] In some optional embodiments, the connector 3 includes multiple connecting segments that are independent of each other. Each connecting segment can be configured as a connecting rod, and each connecting segment is rotatably connected to two adjacent cover plates 2 at both ends.

[0042] In this embodiment, the connector 3 is divided into multiple rigid connecting rods. When the cover plate 2 is closed, adjacent cover plates 2 can form mutual restraint through the connecting rods, thereby effectively preventing the cover plate 2 from rebounding and ensuring that the cover plate 2 can close quickly.

[0043] In some alternative embodiments, connector 3 is configured as a flexible element.

[0044] In this embodiment of the application, regardless of whether the connector 3 is a segmented structure, when it is configured as a flexible component, it can be directly connected to the cover plate 2. During the rotation of the cover plate 2, the flexible component itself deforms to prevent the flexible component from limiting the rotation of the cover plate 2. This setting of the connector 3 can simplify the connection structure and facilitate implementation.

[0045] In specific implementation, the connector 3 is configured as a rope. For example, the connector 3 can be set as a high-strength flame-retardant nylon rope with a diameter of 6mm. The connector 3 passes through all the cover plates 2 in sequence, that is, each cover plate 2 has a clearance hole for the connector 3 to pass through. The diameter of the clearance hole is set to 8mm. Each cover plate 2 is connected to the connector 3 by fasteners, so that when the connector 3 moves, it can drive the cover plate 2 to rotate synchronously.

[0046] In some optional embodiments, the fastener is configured as an arched handle 7, the two ends of which can be connected to the cover plate 2 by screws. The connector 3 passes through the arched handle 7, that is, the arched handle 7 also has a clearance hole for the connector 3 to pass through. The connector 3 has a limiting structure on the segments on both sides of the arched handle 7. Thus, by setting the limiting structure, the connector 3 cannot move back and forth along its own length direction relative to the arched handle 7. That is, when the connector 3 moves, the cover plate 2 can be driven to move synchronously through the limiting structure.

[0047] In some optional embodiments, the limiting structure is configured as a knotted structure, that is, when the connector 3 is a cable, the limiting can be achieved by knotting the two sides of the arched handle 7, which is conducive to improving the ease of implementation.

[0048] In some optional embodiments, the buffer 6 is configured as a rubber layer with a thickness of not less than 5 mm. The rubber layer is located on the end of the cover plate 2 away from the mounting base 1, and the size of the rubber layer can be 50*300 mm. The rubber layer is adhered to the cover plate 2.

[0049] In some alternative embodiments, the drive mechanism includes a pulley 10, a winding assembly 11, and a cable; the pulley 10 is used to be installed on the floor, and in use, the pulley 10 is usually installed on the ceiling of the top floor; the winding assembly 11 is used to be installed on the floor, and the winding assembly 11 can be an existing winch; one end of the cable is connected to the winding assembly 11, and the other end is connected to the top cover plate 2; opening the winch to wind the cable can realize the synchronous opening of multiple cover plates 2.

[0050] In some optional embodiments, the counterweight 4 can be a concrete block of a certain weight, or a closed container filled with materials such as sand and gravel. A spring 9 is provided on the counterweight 4. The spring 9 can be a clutch spring from a scrap car. In the working state, the spring 9 is located below the counterweight 4. The function of the spring 9 is to prevent the counterweight 4 from rigidly colliding with the ground, providing a certain buffering effect, and ensuring the structural integrity of the counterweight 4 and the ground. In addition, when the connecting member 3 is set as a flexible cable, when the counterweight 4 rebounds under the elastic force of the spring 9, the connecting member 3 can deform, so that the cover plate 2 is not affected and the stability of the closed state of the cover plate 2 is guaranteed.

[0051] In some optional embodiments, a rubber pad 8 may also be provided on the counterweight 4, the thickness of the rubber pad 8 being not less than 20mm, thereby further absorbing the impact of landing.

[0052] The specific embodiments described above illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Although the description of this application is presented in conjunction with some embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of describing the application in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this application. To provide a thorough understanding of this application, many specific details are included in the above description. This application may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0053] It should be noted that in this specification, similar reference numerals and letters in the above figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, and are only for the convenience of describing this application 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 on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this application, it should be noted that unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A protective device for multi-story cable laying holes, characterized in that, include: Mounting base (1), and multiple mounting bases (1) are respectively used to install on one side of the wire laying hole in each floor; Cover plate (2), which is rotatably connected to the mounting base (1), the cover plate (2) is configured to cover the wire hole, wherein the cover plate (2) is provided with a buffer (6) for contacting the floor surface. Connector (3), which is connected to the cover plate (2) so that all the cover plates (2) rotate synchronously under the drive of the connector (3); Counterweight (4), which is connected to the bottom cover plate (2); A drive mechanism is connected to the top cover plate (2) to drive the top cover plate (2) to rotate.

2. The multi-story cable laying hole protection device according to claim 1, characterized in that, The connector (3) includes multiple connecting segments, each of which is rotatably connected to two adjacent cover plates (2).

3. The multi-story cable laying hole protection device according to claim 1, characterized in that, The connector (3) is configured as a flexible component.

4. The multi-story cable laying hole protection device according to claim 3, characterized in that, The connector (3) is configured as a cable body, and the connector (3) passes through all the cover plates (2) in sequence, and each cover plate (2) is connected to the connector (3) by fasteners.

5. The multi-story cable laying hole protection device according to claim 4, characterized in that, The fastener is configured as an arched handle (7), the connector (3) extends through the arched handle (7), and the connector (3) has a limiting structure on the segments located on both sides of the arched handle (7).

6. The multi-story cable laying hole protection device according to claim 5, characterized in that, The limiting structure is configured as a knotted structure formed by knotting.

7. The multi-story cable laying hole protection device according to claim 1, characterized in that, The buffer (6) is configured as a rubber layer, which is adhered to the cover plate (2).

8. The multi-story cable laying hole protection device according to claim 7, characterized in that, The thickness of the rubber layer is not less than 5 mm.

9. The multi-story cable laying hole protection device according to claim 1, characterized in that, The drive mechanism includes: A pulley (10) is used for installation on a floor; A winding assembly (11) for installation on a floor; The cable body has one end connected to the winding assembly (11) and the other end connected to the top cover plate (2).

10. The multi-story cable laying hole protection device according to claim 1, characterized in that, A spring (9) is provided on the counterweight (4). In the working state, the spring (9) is located below the counterweight (4).