Visual inspection device for interior of narrow space

By designing a visual inspection device for confined spaces, long-distance inspection of confined spaces is achieved using suspended cables and high-definition cameras, solving the problem of ineffective inspection in existing technologies and improving inspection efficiency and safety.

CN223897325UActive Publication Date: 2026-02-10JIANGSU MODERN ROAD & BRIDGE
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Patent Information

Application Number
CN202423025472.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2026-02-10
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

Existing technologies are ineffective for long-distance inspections within confined spaces, especially for inspecting internal defects in bridges and building structures, making it difficult to identify potential safety hazards.

Method used

A visualization inspection device for confined spaces was designed, comprising a hollow beam slab body, support rods, suspension cables, and high-definition camera equipment. The high-definition camera equipment can be moved over long distances through the suspension cables and moving components, and the angle of the camera equipment can be adjusted by a directional valve. Combined with a display device, the internal structure is displayed in real time.

Benefits of technology

It enables long-distance detection within confined spaces, simplifies the operation process, improves detection efficiency and safety, and allows for intuitive observation of the internal structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a visual inspection device for the interior of a narrow space, and the device comprises a main body unit which comprises a hollow beam plate main body, and the hollow beam plate main body is provided with a plurality of openings; the operation unit comprises a plurality of supporting rods, direction adjusting valves are arranged on the supporting rods, transverse plates are fixedly connected to the ends of the direction adjusting valves, hanging cables are symmetrically arranged between the two transverse plates in a sliding mode, high-definition camera shooting equipment is arranged on the hanging cables in a sliding mode, and moving assemblies are arranged between the high-definition camera shooting equipment and the supporting rods. The bottom of the bottom plate is provided with a tightening assembly used for tightening the suspension cable. According to the utility model, the moving assembly is pulled to drive the high-definition camera equipment to move left and right so as to detect the interior, and the direction adjusting valve can drive the transverse plate to swing, so that the high-definition camera equipment is subjected to angle adjustment, the operation is simple and convenient, and a worker can conveniently detect the internal structure of the high-definition camera equipment.
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Description

Technical Field

[0001] This utility model relates to the technical field of detection devices, and in particular to a visual inspection device for confined spaces. Background Technology

[0002] With the development of transportation and building structures, economical and practical bridge and building structures such as hollow slab beams, precast assembled box girders, and hollow beams and columns are widely used. However, the internal space of these structures is small, making it impossible for people to directly enter. Generally, only non-destructive inspection methods can be used for external inspection, but they cannot directly identify internal defects, resulting in significant safety hazards. If methods such as endoscopy are used directly, the short or inflexible operating levers cannot achieve long-distance inspection within the structure. Therefore, the development of a long-distance inspection device for confined internal spaces is of great significance for structural safety inspection. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A visual inspection device for confined spaces, comprising:

[0006] The main unit includes a hollow beam-slab body and a base plate, wherein the hollow beam-slab body has multiple openings;

[0007] The working unit includes multiple support rods, each support rod is equipped with a directional valve, and a horizontal plate is fixedly connected to the end of the directional valve. A suspension cable is symmetrically slidably arranged between two horizontal plates. A high-definition camera is slidably arranged on the suspension cable. A moving component is provided between the high-definition camera and the support rod. A tightening component for tightening the suspension cable is provided at the bottom of the base plate.

[0008] As a preferred embodiment of the visual inspection device for confined spaces described in this utility model, the movable component includes two mounting plates, which are fixedly connected to a support rod. Guide wheels are rotatably connected to the mounting plates. Traction cables are symmetrically fixedly connected to the left and right sides of the high-definition camera, and the traction cables cooperate with the guide wheels.

[0009] As a preferred embodiment of the visual inspection device for confined spaces described in this utility model, the tightening component includes multiple fixing plates, which are fixedly connected to the base plate and the ground. A rotating shaft is rotatably connected between two of the fixing plates, and a winding roller is fixedly connected to the rotating shaft. The suspension cable extends to the outside of the hollow beam plate body and is wound around the winding roller.

[0010] As a preferred embodiment of the visual inspection device for confined spaces described in this utility model, the tightening assembly further includes a rod, which is slidably inserted into the front fixing plate. A side plate is fixedly connected to the rod, and a spring is fixedly connected between the side plate and the front fixing plate. A slot is provided on the rotating shaft, and the rod extends into the slot.

[0011] In a preferred embodiment of the visual inspection device for confined spaces described in this utility model, the insertion rod is an octagonal prism, and the slot matches the insertion rod.

[0012] As a preferred embodiment of the visual inspection device for confined spaces described in this utility model, the base plate is provided with multiple threaded holes, and bolts are threaded into the internal threads of the threaded holes.

[0013] As a preferred embodiment of the visual inspection device for confined spaces described in this utility model, the suspension cable is made of high-strength steel wire.

[0014] As a preferred embodiment of the visual inspection device for confined spaces described in this utility model, the hollow beam plate body is equipped with a display device, and the display device is electrically connected to a high-definition camera device.

[0015] The beneficial effects of this utility model are:

[0016] In use, openings are first made at both ends of the section to be inspected. Then, the suspension cable and moving component are passed through the openings and extended to the outside. The suspension cable is then passed through the cross plate. Next, the support rod is inserted into the hollow beam body. Then, the suspension cable is wound around the rotating roller to make it taut. Then, the moving component is pulled to move the high-definition camera equipment left and right to detect the inside. At the same time, the directional valve can drive the cross plate to swing, so that the angle of the high-definition camera equipment can be adjusted. The operation is simple and convenient, making it easy for staff to detect the internal structure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of 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. Among them:

[0018] Figure 1 A schematic diagram of the overall front structure of a visual inspection device for confined spaces proposed in this utility model;

[0019] Figure 2 for Figure 1 A top view of the cross-section structure;

[0020] Figure 3 for Figure 1 A schematic diagram of a partial structure;

[0021] Figure 4 for Figure 1 A partial right-view structural diagram;

[0022] Figure 5 for Figure 1 A schematic diagram of the partial left-side cross-section structure;

[0023] Figure 6 for Figure 5 A schematic diagram of a partial cross-sectional structure.

[0024] In the diagram: 100, main unit; 101, hollow beam slab main body; 102, opening; 200, working unit; 201, support rod; 202, base plate; 203, directional valve; 204, cross plate; 205, suspension cable; 206, high-definition camera equipment; 207, moving component; 207a, mounting plate; 207b, guide wheel; 207c, traction cable; 208, bolt; 209, display device; 210, tightening component; 210a, fixing plate; 210b, rotating shaft; 210c, take-up roller; 210d, insertion rod; 210e, side plate; 210f, spring; 210g, slot. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0029] Reference Figure 1-6 This utility model provides a visual inspection device for confined spaces, comprising:

[0030] The main unit 100 includes a hollow beam slab main body 101 and a bottom plate 202. The hollow beam slab main body 101 has multiple openings 102.

[0031] The working unit 200 includes multiple support rods 201. A directional valve 203 is installed on the support rod 201. A horizontal plate 204 is fixedly connected to the end of the directional valve 203. A suspension cable 205 is symmetrically slidably arranged between two horizontal plates 204. A high-definition camera 206 is slidably arranged on the suspension cable 205. A moving component 207 is provided between the high-definition camera 206 and the support rod 201. A tightening component 210 for tightening the suspension cable 205 is provided at the bottom of the base plate 202.

[0032] The movable component 207 includes two mounting plates 207a, which are fixedly connected to the support rod 201. Guide wheels 207b are rotatably connected to the mounting plates 207a. Traction cables 207c are symmetrically fixedly connected to the left and right sides of the high-definition camera device 206. The traction cables 207c cooperate with the guide wheels 207b. The user can move the high-definition camera device 206 inside the hollow beam plate body 101 left and right by pulling the traction cables 207c on the outside.

[0033] Furthermore, the tightening assembly 210 includes multiple fixing plates 210a, which are fixedly connected to the ground of the base plate 202. A rotating shaft 210b is rotatably connected between two fixing plates 210a. A take-up roller 210c is fixedly connected to the rotating shaft 210b. The suspension cable 205 extends to the outside of the hollow beam plate body 101 and is wound around the take-up roller 210c. The user can wind the suspension cable 205 through the take-up roller 210c to tighten the suspension cable 205 inside the hollow beam plate body 101, which facilitates the movement of the high-definition camera equipment 206.

[0034] Furthermore, the tightening assembly 210 also includes a rod 210d, which is slidably inserted into the front fixing plate 210a. A side plate 210e is fixedly connected to the rod 210d, and a spring 210f is fixedly connected between the side plate 210e and the front fixing plate 210a. A slot 210g is provided on the rotating shaft 210b, and the rod 210d extends into the slot 210g. The user can pull the rod 210d outward to disengage it from the rotating shaft 210b. Then, the take-up roller 210c is rotated to wind the suspension cable 205. After the suspension cable 205 is tightened, the rod 210d moves into the slot 210g under the action of the spring 210f, restricting the rotating shaft 210b and preventing it from rotating.

[0035] Furthermore, the insertion rod 210d is an octagonal prism, and the slot 210g matches the insertion rod 210d. The octagonal prism design allows the insertion rod 210d to be inserted into the slot 210g, which can restrict the rotation shaft 210b.

[0036] Furthermore, the base plate 202 is provided with multiple threaded holes, and bolts 208 are installed in the threads of the threaded holes. When in use, the user can fix the device to the hollow beam plate body 101 by the cooperation of the bolts 208 and the threaded holes.

[0037] Furthermore, the suspension cable 205 is made of high-strength steel wire, which makes it more durable.

[0038] Furthermore, the hollow beam slab body 101 is equipped with a display device 209, which is electrically connected to a high-definition camera device 206. The high-definition camera device 206 will synchronize the captured images to the display device 209 in real time, and staff can observe its interior through the display device 209.

[0039] During use, openings 102 are first made at both ends of the section to be inspected. Then, the suspension cable 205 and the moving component 207 are passed through the openings 102 and extended to the outside. The suspension cable 205 is then passed through the cross plate 204. The support rod 201 is then inserted into the hollow beam plate body 101. The suspension cable 205 is then wound around by rotating the take-up roller 210c to make it taut. Then, the moving component 207 is pulled to move the high-definition camera 206 left and right to detect the interior. At the same time, the directional valve 203 can drive the cross plate 204 to swing, so that the high-definition camera 206 can be adjusted in angle. The operation is simple and convenient, making it easy for staff to detect the internal structure.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A visual inspection device for confined spaces, characterized in that: include: The main unit (100) includes a hollow beam plate main body (101) and a bottom plate (202), wherein the hollow beam plate main body (101) has multiple openings (102); The working unit (200) includes multiple support rods (201), each support rod (201) is equipped with a directional valve (203), the end of the directional valve (203) is fixedly connected to a horizontal plate (204), a suspension cable (205) is symmetrically slidably arranged between two horizontal plates (204), a high-definition camera (206) is slidably arranged on the suspension cable (205), a moving component (207) is provided between the high-definition camera (206) and the support rod (201), and a tightening component (210) is provided at the bottom of the base plate (202) for tightening the suspension cable (205).

2. The visual inspection device for confined spaces according to claim 1, characterized in that: The moving component (207) includes two mounting plates (207a), which are fixedly connected to the support rod (201). Guide wheels (207b) are rotatably connected to the mounting plates (207a). Traction cables (207c) are symmetrically fixedly connected to the left and right sides of the high-definition camera device (206), and the traction cables (207c) cooperate with the guide wheels (207b).

3. The visual inspection device for confined spaces according to claim 2, characterized in that: The tightening assembly (210) includes multiple fixing plates (210a), which are fixedly connected to the ground of the base plate (202). A rotating shaft (210b) is rotatably connected between two of the fixing plates (210a). A take-up roller (210c) is fixedly connected to the rotating shaft (210b). The suspension cable (205) extends to the outside of the hollow beam plate body (101) and is wound around the take-up roller (210c).

4. The visual inspection device for confined spaces according to claim 3, characterized in that: The tightening assembly (210) also includes a plug rod (210d), which is slidably inserted into the front fixing plate (210a). A side plate (210e) is fixedly connected to the plug rod (210d), and a spring (210f) is fixedly connected between the side plate (210e) and the front fixing plate (210a). A slot (210g) is provided on the rotating shaft (210b), and the plug rod (210d) extends into the slot (210g).

5. The visual inspection device for confined spaces according to claim 4, characterized in that: The insert (210d) is an octagonal prism, and the slot (210g) is matched with the insert (210d).

6. The visual inspection device for confined spaces according to claim 5, characterized in that: The base plate (202) is provided with multiple threaded holes, and bolts (208) are threaded into the threaded holes.

7. The visual inspection device for confined spaces according to claim 6, characterized in that: The suspension cable (205) is made of high-strength steel wire.

8. The visual inspection device for confined spaces according to claim 7, characterized in that: The hollow beam slab body (101) is equipped with a display device (209), which is electrically connected to a high-definition camera device (206).