Horizontal protection device for surveying and setting-out hole
By combining the inverted trapezoidal wire laying box with the protective cover, the problem of water leakage in traditional wire laying holes is solved, achieving efficient waterproofing and easy removal of measurement and wire laying hole protection, which is suitable for standardized construction of high-rise buildings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional surveying and setting-out holes are prone to water leakage during construction, and the protective formwork is inconvenient to move, posing safety hazards. In particular, water seepage is serious in rainy days or watery environments, which cannot meet the water-stopping requirements of high-rise buildings.
The cable box and protective cover are combined in an inverted trapezoidal structure. The cable box is pre-embedded in the structural floor slab. Combined with waterproof strips and hinged parts, the protective cover can be flipped up, has a waterproof function, and can be easily sealed with concrete after removal.
It achieves a good sealing effect for the laying-out holes, is suitable for high waterproof requirements, and the protective device is convenient and reusable, meeting the standardized protection requirements for the measurement and laying-out holes.
Smart Images

Figure CN224133956U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a horizontal protection device for measuring and setting out openings. Background Technology
[0002] Measurement and layout holes are holes specifically reserved for measuring and layout the upper floors during the construction process of building engineering. In traditional construction, the holes are often sealed with on-site formwork for protection. However, due to the need for openings in each floor's construction and the large number of personnel involved in the construction process, the protective formwork is moved back and forth, resulting in hollow openings and damage to the formwork, posing significant safety hazards. At the same time, the traditional method of using water-retaining sills and formwork for protection is prone to water seepage in rainy or wet environments, affecting the safe and civilized construction of the floors. This is especially true for buildings with high requirements for inter-floor waterproofing, where traditional protection techniques often cannot meet the requirements.
[0003] Existing technologies, such as the Chinese utility model patent with publication number CN 117266431 A and publication date of December 22, 2023, disclose a prefabricated layout hole device for multi-story and high-rise building floor slabs, including: a concrete box, bidirectional angle brackets, bolts, steel plates, thin templates, floor slab templates, and concrete floor slabs. Although this patent is for prefabricated concrete components that can be directly used on the construction site after being processed in the factory, simplifying the construction process and saving construction time, and although it solves the problem of water seepage that may occur after the hole is repaired and strengthens the repair position of the layout hole to avoid the safety hazard caused by the falling of the repaired concrete block, there is still a problem of water leakage caused by excessive water accumulation during the use of the layout hole, which cannot achieve a certain water-stopping effect. Utility Model Content
[0004] To address the shortcomings in the aforementioned background technology, this utility model proposes a horizontal protection device for measuring and laying out holes, which solves the problem of easy water leakage in existing measuring and laying out holes.
[0005] The technical solution of this utility model is implemented as follows: a horizontal protection device for measuring and laying out openings includes a laying out box, which is installed on the structural floor slab. A waterproof strip is provided between the laying out box and the structural floor slab. A protective cover plate is hinged to the upper part of the laying out box. The mating plane between the laying out box and the protective cover plate is higher than the top plane of the structural floor slab.
[0006] More preferably, the cable tray has an inverted trapezoidal frame structure.
[0007] More preferably, the distance between the top plane of the cable box and the top plane of the structural floor slab is H, where H is greater than 10cm.
[0008] More preferably, the bottom plane of the cable box and the bottom plane of the structural floor slab are located on the same plane.
[0009] More preferably, the waterproof strip has a frame structure, and the frame is set on the outer wall of the cable box.
[0010] More preferably, the cross-section of the waterproof strip is an inverted L-shaped structure, the L-shaped structure includes a horizontal section and a sloping section, the upper plane of the horizontal section is flush with the top plane of the structural floor slab, and the sloping section is pasted on the outer wall of the wiring box.
[0011] More preferably, one end of the protective cover is provided with a hinge, and the protective cover is connected to the cable box through the hinge.
[0012] More preferably, the hinge includes at least one first connecting pipe and a second connecting pipe corresponding to the first connecting pipe. The first connecting pipe is connected to the lower part of the protective cover plate, and the second connecting pipe is connected to the upper part of the cable box. A pin is connected to the first connecting pipe, and the first connecting pipe is connected to the second connecting pipe through the pin.
[0013] More preferably, the area of the protective cover is larger than the area of the bottom plane of the cable box.
[0014] More preferably, the lower part of the protective cover is provided with a fastening strip that mates with the cable tray. Preferably, the fastening strip is located on the upper side of the protective cover away from the hinge.
[0015] The beneficial effects of this utility model are as follows: The wire-laying box is pre-embedded in the structural floor slab, and the waterproof strip ensures a better seal between the wire-laying box and the structural floor slab, preventing water leakage caused by loosening of the wire-laying box during use. The good sealing effect makes it suitable for structural floor slabs with high waterproofing requirements. The protective cover can be flipped in real time and has a waterproof function. After the protective device is removed, the inverted trapezoidal opening is easily sealed with concrete. It features practicality, waterproofing, convenience, and reusability, achieving standardization of protection for measurement and wire-laying openings. Attached Figure Description
[0016] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments 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.
[0017] Figure 1 This is a schematic diagram of the operation of this utility model. Figure 1 ;
[0018] Figure 2 This is a schematic diagram of the operation of this utility model. Figure 2 ;
[0019] Figure 3 Schematic diagram of the structure for the junction box and protective cover. Figure 1 ;
[0020] Figure 4 Schematic diagram of the structure for the junction box and protective cover. Figure 2 .
[0021] In the diagram: 1. Cable box, 2. Protective cover, 21. Fastener strip, 3. Hinge, 31. First connecting pipe, 32. Second connecting pipe, 33. Pin, 4. Waterproof strip, 5. Structural floor slab. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figure 1 and Figure 2 As shown in Embodiment 1, a horizontal protective device for a surveying and layout opening includes a layout box 1, which is installed on a structural floor slab 5. A waterproof strip 4 is installed between the layout box 1 and the structural floor slab 5. A protective cover plate 2 is hinged to the upper part of the layout box 1, and the mating plane between the layout box 1 and the protective cover plate 2 is higher than the top plane of the structural floor slab 5. The layout box 1 is embedded in the structural floor slab 5, and the waterproof strip 4 improves the sealing effect between the layout box 1 and the structural floor slab 5, preventing water leakage caused by loosening of the layout box 1 during use. The device provides a good seal and is suitable for structural floor slabs with high waterproofing requirements. The protective cover plate 2 can be flipped in real time and has a waterproof function. It is practical, waterproof, convenient, and reusable, achieving standardized protection for surveying and layout openings.
[0024] In this embodiment, the cable tray 1 is an inverted trapezoidal structural frame. The cable tray 1 is formed by connecting four inverted trapezoidal plates to create an inverted trapezoidal frame, resulting in a hole structure with a large square opening at the top and a small square opening at the bottom. The distance between the top plane of the cable tray 1 and the top plane of the structural floor slab 5 is H, where H is greater than or equal to 10cm. The bottom plane of the cable tray 1 and the bottom plane of the structural floor slab 5 are located on the same plane. During pouring, the cable tray 1 is directly placed on the formwork to form an embedded structure, creating a reserved opening, which facilitates construction. After the cable tray 1 is removed, the inverted trapezoidal opening is easily sealed with concrete, and the resulting concrete sealing block can be fixed to the structural floor slab 5 and will not fall off.
[0025] In this embodiment, the waterproof strip 4 is a frame structure, which is installed on the outer wall of the wiring box 1. The cross-section of the waterproof strip 4 is an inverted L-shaped structure, which includes a horizontal section and a sloping section. The upper plane of the horizontal section is flush with the top plane of the structural floor slab 5, and the sloping section is attached to the outer wall of the wiring box 1. The frame structure formed by the waterproof strip 4 is attached to the outer wall of the wiring box 1, and the upper plane of the horizontal section of the waterproof strip 4 is flush with the top plane of the structural floor slab 5. This achieves waterproofing while also controlling the pouring height of the floor slab. Specifically, the position of the waterproof strip 4 is controlled so that the distance between the top of the waterproof strip 4 and the bottom is the height of the poured concrete. The pouring is considered complete when the concrete is level with the top of the waterproof strip 4, which facilitates control.
[0026] Specifically, the wire laying box 1 of this device is pre-embedded in the concrete floor slab, and a horizontal protective cover 2 is connected to the wire laying box 1. At the same time, waterproof strips 4 are embedded in the four side walls of the wire laying box 1. This horizontal protective device solves the problem of difficult sealing of traditional wire laying openings, realizes real-time flip-cover measurement and wire laying, and has a waterproof function. Its unique flared mouth shape is conducive to the removal of the protective device and sealing of the opening. It has the characteristics of practicality, waterproofness, convenience and reusability, and realizes the standardization of protection for measurement and wire laying openings.
[0027] like Figure 3 and Figure 4 As shown in Embodiment 1, a horizontal protective device for measuring and laying out a cable opening includes a hinge 2 at one end of a protective cover plate 2, which connects the protective cover plate 2 to a cable laying box 1. The hinge 2 includes at least one first connecting pipe 31 and a second connecting pipe 32 corresponding to the first connecting pipe 31. The first connecting pipe 31 is connected to the lower part of the protective cover plate 2, and the second connecting pipe 32 is connected to the upper part of the cable laying box 1. A pin 33 is connected to the first connecting pipe 31, and the first connecting pipe 31 is connected to the second connecting pipe 32 via the pin 33. Specifically, the first connecting pipes 31 are symmetrically arranged on the protective cover plate 2, and the second connecting pipes 32 are symmetrically fixed on the cable laying box 1. The pin 33 passes through the first connecting pipe 31 and the second connecting pipe 32 to achieve the hinge connection between the protective cover plate 2 and the cable laying box 1.
[0028] In this embodiment, the area of the protective cover 2 is larger than the area of the bottom plane of the cable delivery box 1. A fastening strip 21 that cooperates with the cable delivery box 1 is provided at the lower part of the protective cover 2. Preferably, the fastening strip 21 is located on the side of the protective cover 2 away from the hinge 2. The fastening strip 21 assists in the connection between the protective cover and the cable delivery box 1. The fastening strip 21 and the protective cover 2 are an integral structure. The fastening strip 21 can also be used to guide water, preventing rainwater from seeping into the cable delivery box 1 from the protective cover 2.
[0029] All other structures are the same as in Example 1.
[0030] Example 3: A horizontal protection device for measuring the opening of a wire laying hole, comprising a wire laying box 1, a protective cover plate 2, and a waterproof strip 4.
[0031] Furthermore, such as Figures 1-4 As shown, the cable box 1 is an inverted trapezoidal shape with a large square opening at the top and a small square opening at the bottom. It protrudes above the surface of the structural floor slab 5 and is pre-embedded before the structural floor slab 5 is poured.
[0032] Furthermore, such as Figure 1 , Figure 2 As shown, the cable box 1 is secured with waterproof strips 4 around its perimeter. The waterproof strip 4 has an inverted L-shaped cross section, consisting of a horizontal section and a sloping section. The horizontal section is flush with the structural floor slab 5, and the sloping section is connected to the cable box 1 with waterproof adhesive. The waterproof strip 4 and the cable box 1 are pre-embedded together before the concrete of the structural floor slab 5 is poured and poured simultaneously.
[0033] Furthermore, such as Figure 1 As shown, the cable delivery box 1 is connected to the protective cover plate 2 on one side of its upper part by two hinges. The hinges can be flipped along one side of the cable delivery box 1, which drives the protective cover plate 2 to flip and close.
[0034] Furthermore, such as Figures 3-4 As shown, the protective cover 2 is larger than the upper part of the cable box 1 and has a tucked edge. When laying the cable, the cover is opened to measure the cable laying. After use, the protective cover 2 is closed and used as a protective device.
[0035] Compared with existing technologies, the protective cover 2 can be flipped in real time and has a waterproof function. After the protective device is removed, the inverted trapezoidal opening can be easily sealed with concrete. It has the characteristics of practicality, waterproofness, convenience, and reusability, and realizes the standardization of protection for surveying and setting-out openings.
[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A surveying level hole opening guard characterized by: Includes a cable box (1), which is installed on the structural floor slab (5). A waterproof strip (4) is provided between the cable box (1) and the structural floor slab (5). A protective cover plate (2) is hinged to the upper part of the cable box (1). The mating plane of the cable box (1) and the protective cover plate (2) is higher than the top plane of the structural floor slab (5).
2. The measurement of the level of the hole protection device according to claim 1, characterized in that: The cable box (1) is an inverted trapezoidal frame.
3. The measurement of the level of the hole protection device according to claim 2, characterized in that: The distance between the top plane of the cable box (1) and the top plane of the structural floor slab (5) is H, where H is greater than 10cm.
4. The measurement of the level of the hole protection device according to claim 3, characterized in that: The bottom plane of the cable box (1) and the bottom plane of the structural floor slab (5) are on the same plane.
5. The measurement of the level of the hole mouth protection device according to any one of claims 1-4, characterized in that: The waterproof strip (4) is a frame structure, and the frame is set on the outer wall of the cable box (1).
6. The horizontal protection device for the surveying and setting-out opening according to claim 5, characterized in that: The cross-section of the waterproof strip (4) is an inverted L-shaped structure. The L-shaped structure includes a horizontal section and a sloping section. The upper plane of the horizontal section is flush with the top plane of the structural floor slab (5), and the sloping section is pasted on the outer wall of the wiring box (1).
7. The horizontal protective device for surveying and setting out openings according to any one of claims 1 to 4 and 6, characterized in that: The protective cover (2) is provided with a hinge (3) at one end, and the protective cover (2) is connected to the cable box (1) through the hinge (3).
8. The measurement of the running line hole level protection device according to claim 7, characterized in that: The hinge (3) includes at least one first connecting pipe (31) and a second connecting pipe (32) corresponding to the first connecting pipe (31). The first connecting pipe (31) is connected to the lower part of the protective cover (2), and the second connecting pipe (32) is connected to the upper part of the cable box (1). A pin (33) is connected to the first connecting pipe (31), and the first connecting pipe (31) is connected to the second connecting pipe (32) through the pin (33).
9. The measurement level of protection of the exit of the hole of the threading of the wire according to any of the claims 1 to 4, 6, 8, characterized in that: The area of the protective cover (2) is greater than the area of the bottom plane of the cable box (1).
10. The measurement of the running hole opening level protection device according to claim 9, characterized in that: The lower part of the protective cover (2) is provided with a fastener (21) that cooperates with the cable box (1).
Citation Information
Patent Citations
Prefabricated pay-off hole device for floor slabs of multi-story and high-rise buildings
CN117266431A