Unpowered linkage pay-off hole guard

By designing a non-powered linkage cable hole protection device, the cover plate is linked to operate using a movable plate and magnetic connection, which solves the problem of cumbersome operation in the existing technology and improves the efficiency and practicality of cable hole sealing.

CN224452302UActive Publication Date: 2026-07-03CHINA HYDROPOWER ELEVENTH ENG BUREAU (ZHENGZHOU) CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA HYDROPOWER ELEVENTH ENG BUREAU (ZHENGZHOU) CO LTD
Filing Date
2025-08-08
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing sealing device for the wire hole is cumbersome to operate, requiring each hole to be opened and closed individually, which is time-consuming and laborious, and requires tools to fix it, making it impractical.

Method used

A non-powered linkage cable laying hole protection device was designed. It utilizes a movable plate, clamping and fixing parts, a hanging structure and magnetic connection to realize the linkage opening and fixing of the cover plate, avoiding the use of tools and adapting to cable laying holes of different specifications.

Benefits of technology

It enables quick opening and closing of the cover plate, improves work efficiency, simplifies the operation process, adapts to different specifications of wire holes, and improves practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of unpowered linkage pay-off hole protection devices, it is related to the field of construction, including rectangular frame and floor slab, the floor slab is equipped with pay-off hole, the rectangular frame four corners are equipped with the movable plate that can translate, the opposite end of the movable plate is equipped with the clamping fixing member for being fixed to the pay-off hole four corners. By installing extension plate on vertical frame, fixing the rope body with the floor height on fixed ring one and hanging to the lower floor, the lower end of the rope body is fixed with the fixed ring two of the lower floor, when lifting the cover plate of the upper floor, the rope body links the cover plate of the lower floor and turns up together, after turning to suitable angle, the hanging rod on connecting rope is hung in U-shaped groove, the simultaneous opening or closing of multiple cover plates is realized, and the quick fixing of multiple cover plate angles is realized, avoid layer-by-layer operation cover plate, improve work efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and specifically relates to a non-powered linkage cable laying hole protection device. Background Technology

[0002] Floor layout holes are reserved holes used in building construction to vertically transfer axis control points. Their core function is to accurately transfer the positioning benchmark of the lower floor to the upper floor, ensuring the consistency of the spatial position of the building structure. In order to prevent personnel, tools or materials from accidentally falling into the layout holes, protective plates need to be installed.

[0003] Currently, most of the sealing of the wire laying holes is done with simple wooden or iron plates. However, fixing them requires tools such as impact drills and expansion bolts to install the plates at the wire laying holes. The operation is cumbersome and inconvenient. Moreover, before the measurement begins, the protective cover plates of each layer of wire laying holes need to be opened one by one. After the measurement is completed, the protective cover plates of each layer of wire laying holes need to be closed one by one. The measurement process is time-consuming and laborious, and its practicality is poor. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a non-powered linkage cable release hole protection device, as detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The present invention provides a non-powered linkage cable laying hole protection device, comprising a rectangular frame and a floor plate. The floor plate has a cable laying hole. Each of the four corners of the rectangular frame is provided with a movable plate that can be moved horizontally. Each of the four movable plates has a clamping and fixing component at its opposite end for fixing it to the four corners of the cable laying hole. A cover plate is rotatably connected to one side of the rectangular frame. An extension plate is fixedly connected to the side wall of the rectangular frame. A stand is detachably installed on the extension plate. The upper end of the stand is provided with a hanging structure for fixing the opening angle of the cover plate. A fixing ring is provided on the bottom surface of the cover plate.

[0007] Preferably, T-shaped blocks are fixedly connected to the grooves at the four corners of the rectangular frame, and T-shaped grooves that slide to fit the T-shaped blocks are provided on the movable plate.

[0008] Preferably, the T-shaped block has an inclination angle of 45 degrees, and the upper surfaces of the T-shaped block and the movable plate are flush with the upper surface of the rectangular frame.

[0009] Preferably, the clamping and fixing component includes a threaded rod fixedly connected to the bottom surface of the end of the movable plate, the threaded rod is provided with a clamping plate, and the clamping plate is provided with a threaded hole that is threadedly connected to the threaded rod.

[0010] Preferably, the upper surface of the extension plate is fixedly connected with bolts, and the lower end of the support frame is rotatably connected with a nut that is threadedly connected to the bolts.

[0011] Preferably, a limiting rod is fixedly connected to the upper surface of the extension plate, and a limiting sleeve fitted onto the limiting rod is fixedly connected to the lower end of the stand.

[0012] Preferably, the hanging structure includes a connecting rope fixedly connected to the upper surface of the cover plate, and several hanging rods are fixedly connected to the connecting rope. The upper end of the upright is provided with a U-shaped groove adapted to the connecting rope.

[0013] Preferably, the upper part of the U-shaped groove is provided with two baffles that are fixedly connected to the upright, and the baffles are adapted to the hanging rod, and the end of the connecting rope is fixedly connected with a fixing ring.

[0014] Preferably, a magnetic block is fixedly connected to one side of the rectangular frame, and the magnetic block is magnetically connected to the iron cover plate.

[0015] Preferably, the surface of the cover plate is provided with a warning sticker.

[0016] The beneficial effects are:

[0017] By installing the support frame on the extension plate, a rope of equivalent floor height is fixed to a fixing ring and lowered to the floor below. The lower end of the rope is fixed to a fixing ring on the floor below. When the cover plate of the upper floor is lifted, the rope moves the cover plate of the lower floor upwards together. After flipping to the appropriate angle, the hanging rod on the connecting rope is hung in the U-shaped groove, which enables multiple covers to be opened or closed at the same time and quickly fixes the angle of multiple covers. This avoids operating the covers layer by layer and improves work efficiency.

[0018] By moving the threaded rods along the diagonal of the square wire-laying hole until the four threaded rods are positioned at the four corners of the wire-laying hole, one hand fixes the orientation of the clamping plate while the other hand rotates the wheel at the lower end of the threaded rod until the clamping plate moves up and engages with the rectangular frame to clamp and fix the floor slab. The entire operation avoids the use of tools such as impact drills and expansion bolts, and can be installed and fixed by hand. It can also be adapted to wire-laying holes of different specifications, improving its practicality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a perspective view of the present invention;

[0021] Figure 2 This is a bottom-view perspective view of this utility model;

[0022] Figure 3 This is a first perspective view of the cover plate of this utility model in the open state;

[0023] Figure 4 This is a second perspective view of the cover plate of this utility model in the open state;

[0024] Figure 5 This is a three-dimensional view of the disassembled movable plate of this utility model;

[0025] Figure 6 This is a three-dimensional disassembled view of the frame of this utility model.

[0026] The annotations in the attached figures are explained as follows:

[0027] 1. Rectangular frame; 2. Cover plate; 3. Movable plate; 301. T-shaped block; 302. T-shaped groove; 4. Clamping fastener; 401. Threaded rod; 402. Clamping plate; 403. Threaded hole; 5. Hanging structure; 501. Connecting rope; 502. Hanging rod; 503. U-shaped groove; 504. Baffle; 6. Extension plate; 601. Bolt; 602. Nut; 603. Limiting rod; 604. Limiting sleeve; 7. Stand; 8. Fixing ring two; 9. Fixing ring one; 10. Magnetic block; 11. Floor plate; 12. Cable laying hole. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] See Figures 1-6 As shown, this utility model provides a non-powered linkage cable laying hole protection device, including a rectangular frame 1 and a floor plate 11. The floor plate 11 has a cable laying hole 12. Each of the four corners of the rectangular frame 1 is provided with a movable plate 3 that can be moved horizontally. Each of the four movable plates 3 has a clamping and fixing member 4 at the opposite ends to fix it to the four corners of the cable laying hole 12. A cover plate 2 is rotatably connected to one side of the rectangular frame 1. An extension plate 6 is fixedly connected to the side wall of the rectangular frame 1. A stand 7 is detachably installed on the extension plate 6. The upper end of the stand 7 is provided with a hanging structure 5 for fixing the opening angle of the cover plate 2. A fixing ring 9 is provided on the bottom surface of the cover plate 2.

[0030] Reference Figure 5As shown, T-shaped blocks 301 are fixedly connected to the grooves at the four corners of the rectangular frame 1. The movable plate 3 has T-shaped grooves 302 that slide to fit the T-shaped blocks 301. The inclination angle of the T-shaped blocks 301 is 45 degrees, and the upper surfaces of the T-shaped blocks 301 and the movable plate 3 are flush with the upper surface of the rectangular frame 1. The clamping and fixing component 4 includes a threaded rod 401 fixedly connected to the bottom surface of the end of the movable plate 3. A clamping plate 402 is provided on the threaded rod 401, and a threaded hole 403 is provided on the clamping plate 402 for threaded connection with the threaded rod 401. The T-shaped blocks 301 and the movable plate 3 are designed at a 45-degree angle. 3. The threaded rod 401 can be moved along the diagonal of the square wire-laying hole 12 to adapt to wire-laying holes 12 of different specifications. The upper surface of the T-shaped block 301 and the movable plate 3 is flush with the upper surface of the rectangular frame 1, which makes the surface of the cover plate 2 flatter after it is fastened and avoids protrusion. By pulling the four movable plates 3 to move diagonally, the four threaded rods 401 are placed at the four corners of the wire-laying hole 12. Then, one hand fixes the orientation of the clamping plate 402, and the other hand rotates the wheel at the lower end of the threaded rod 401 until the clamping plate 402 moves up and cooperates with the rectangular frame 1 to clamp and fix the floor plate 11.

[0031] Reference Figure 6 As shown, a bolt 601 is fixedly connected to the upper surface of the extension plate 6, and a nut 602 threadedly connected to the bolt 601 is rotatably connected to the lower end of the support frame 7. A limit rod 603 is also fixedly connected to the upper surface of the extension plate 6, and a limit sleeve 604 fitted onto the limit rod 603 is fixedly connected to the lower end of the support frame 7. By fitting the limit sleeve 604 onto the limit rod 603 and rotating the nut 602 on the bolt 601, the support frame 7 can be driven to gradually move down on the extension plate 6 and be connected and fixed thereto. The detachable design of the support frame 7 allows the support frame 7 to be disassembled and assembled as the building height increases, ensuring that the support frame 7 is always installed on the uppermost floor.

[0032] Reference Figure 3As shown, the hanging structure 5 includes a connecting rope 501 fixedly connected to the upper surface of the cover plate 2. Several hanging rods 502 are fixedly connected to the connecting rope 501. The upper end of the support frame 7 has a U-shaped groove 503 adapted to the connecting rope 501. Two baffles 504 fixedly connected to the support frame 7 are provided above the U-shaped groove 503, and the baffles 504 are adapted to the hanging rods 502. A fixing ring 8 is fixedly connected to the end of the connecting rope 501. When the cover plate 2 of the upper floor is lifted by the connecting rope 501, the rope moves together with the cover plate 2 of the lower floor to flip upwards. After flipping to a suitable angle, the connecting rope 501 will be lifted upwards. The hanging rod 502 on the connecting rope 501 is hung in the U-shaped groove 503. At this time, the two baffles 504 restrict the hanging rod 502 from moving upward, thus fixing the angle of multiple cover plates 2. At the same time, a fixing ring 8 is set at the end of the connecting rope 501 to bind and fix it with the rope hanging above, so that the upper cover plate 2 can drive the lower cover plate 2 to flip and move together. Through the erection of the stand 7, the flip angle of the cover plate 2 can be limited to less than 90 degrees. When the flip angle of the cover plate 2 is less than 90 degrees, the uppermost cover plate 2 can be released and automatically flip down and close under its own weight and the pulling force of several lower cover plates 2.

[0033] Furthermore, a magnetic block 10 is fixedly connected to one side of the rectangular frame 1, and the magnetic block 10 is magnetically connected to the iron cover plate 2. The magnetic force of the magnetic block 10 can attract and fix the cover plate 2 in the closed state.

[0034] Specifically, the surface of cover plate 2 is provided with warning stickers, which can play a good warning role.

[0035] In use, pull the four movable plates 3 diagonally until the four threaded rods 401 are positioned at the four corners of the wire hole 12. Then, fix the orientation of the clamping plate 402 with one hand and rotate the wheel at the lower end of the threaded rod 401 with the other hand until the clamping plate 402 moves up and cooperates with the rectangular frame 1 to clamp and fix the floor plate 11. Then, install the stand 7 on the extension plate 6, fix the rope with a height equivalent to the floor to the fixing ring 9 and let it hang down to the lower floor. The lower end of the rope is fixed to the fixing ring 8 of the lower floor. When the cover plate 2 of the upper floor is lifted, the rope moves up together with the cover plate 2 of the lower floor. After flipping to the appropriate angle, hang the hanging rod 502 on the connecting rope 501 in the U-shaped groove 503 to complete the fixation of the angle of multiple cover plates 2.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A passive linked spool hole protector characterized by: The rectangular frame (1) and floor slab (11) are provided. The floor slab (11) has a wire hole (12). The rectangular frame (1) has movable plates (3) that can be moved at each of its four corners. The opposite ends of the four movable plates (3) are provided with clamping fasteners (4) for fixing them to the four corners of the wire hole (12). A cover plate (2) is rotatably connected to one side of the rectangular frame (1). An extension plate (6) is fixedly connected to the side wall of the rectangular frame (1). A stand (7) is detachably installed on the extension plate (6). The upper end of the stand (7) is provided with a hanging structure (5) for fixing the opening angle of the cover plate (2). A fixing ring (9) is provided on the bottom surface of the cover plate (2).

2. The unpowered linked spool hole guard of claim 1, wherein: T-shaped blocks (301) are fixedly connected in the grooves at the four corners of the rectangular frame (1), and T-shaped grooves (302) that are adapted to slide with the T-shaped blocks (301) are provided on the movable plate (3).

3. The unpowered linked spool hole guard of claim 2, wherein: The T-block (301) has an inclination angle of 45 degrees, and the upper surfaces of the T-block (301) and the movable plate (3) are flush with the upper surface of the rectangular frame (1).

4. The unpowered linked spool hole guard of claim 1, wherein: The clamping and fixing component (4) includes a threaded rod (401) fixedly connected to the bottom surface of the end of the movable plate (3). The threaded rod (401) is provided with a clamping plate (402), and the clamping plate (402) is provided with a threaded hole (403) that is threadedly connected to the threaded rod (401).

5. The passive linked pay-off hole protector of claim 1, wherein: The upper surface of the extension plate (6) is fixedly connected with a bolt (601), and the lower end of the support frame (7) is rotatably connected with a nut (602) that is threadedly connected to the bolt (601).

6. The unpowered linked spool hole guard of claim 5, wherein: The upper surface of the extension plate (6) is also fixedly connected to a limiting rod (603), and the lower end of the stand (7) is fixedly connected to a limiting sleeve (604) that is sleeved with the limiting rod (603).

7. The passive linked pay-off hole protector of claim 1, wherein: The hanging structure (5) includes a connecting rope (501) fixedly connected to the upper surface of the cover plate (2), and several hanging rods (502) are fixedly connected to the connecting rope (501). The upper end of the stand (7) is provided with a U-shaped groove (503) adapted to the connecting rope (501).

8. The unpowered linked spool hole guard of claim 7, wherein: The U-shaped groove (503) is provided with two baffles (504) that are fixedly connected to the upright (7), and the baffles (504) are adapted to the hanging rod (502). The end of the connecting rope (501) is fixedly connected to a fixing ring (8).

9. The passive linked pay-off hole protector of claim 1, wherein: A magnetic block (10) is fixedly connected to one side of the rectangular frame (1), and the magnetic block (10) is magnetically connected to the iron cover plate (2).

10. The passive linked pay-off hole protector of claim 1, wherein: The surface of the cover plate (2) is provided with a warning sticker.