A safe telescopic scanning measuring device suitable for limited space

Abstract

The application relates to a free-extendable safe scanning and measuring device suitable for limited spaces, and relates to the field of scanning and measuring devices, which comprises a supporting assembly and a detecting assembly, the supporting assembly comprises a mounting block and a plurality of supporting rods, the plurality of supporting rods are circumferentially rotationally connected to the side wall of the mounting block along the axis of the mounting block, the detecting assembly comprises a mounting rod, an electric telescopic piece and a scanning piece, the mounting rod is fixedly connected to the bottom of the mounting block, the electric telescopic piece is arranged at the bottom end of the mounting rod, the scanning piece comprises a rotating holder, a scanning probe and a camera, the rotating holder is arranged at the bottom end of the electric telescopic piece, an integrated block is arranged on the rotating holder, and the scanning probe and the camera are both arranged on the integrated block. The application can realize scanning and measuring work without workers entering limited spaces, and reduces operation risks.

Description

Technical Field

[0001] This application relates to the field of scanning measurement devices, and more particularly to a freely retractable and safe scanning measurement device suitable for confined spaces. Background Technology

[0002] Because traditional two-dimensional pipeline spatial relationships are unclear and the display effect is not intuitive, the information management, representation, and application of urban underground pipelines are gradually extending from two-dimensional to three-dimensional. Scanning measurement is the main method for obtaining three-dimensional models of underground pipelines.

[0003] Scanning measurement is a non-contact measurement method that acquires three-dimensional data of an object's surface. It can be used for surveying communication manholes, measuring drainage wells, determining the boundaries of culverts, and scanning underground pipelines. Surveyors either handhold the scanning equipment into underground pipelines or extend the equipment inside.

[0004] However, the environment inside underground pipelines is very complex. There may be high concentrations of toxic gases, high water levels, and electrical wires inside the pipelines. When surveyors go down into the pipelines to take measurements, they are at high risk of poisoning, drowning, or electric shock, and the safety of the operation cannot be guaranteed. Utility Model Content

[0005] In order to enable scanning and measurement work to be completed without workers entering a confined space, thereby reducing operational risks, this application provides a freely retractable and safe scanning and measurement device suitable for confined spaces.

[0006] This application provides a freely retractable and safe scanning and measuring device suitable for confined spaces, employing the following technical solution: A freely retractable and safe scanning and measuring device suitable for confined spaces includes a support assembly and a detection assembly. The support assembly includes a mounting block and multiple support rods, which are circumferentially connected to the side wall of the mounting block along its axis. The detection assembly includes a mounting rod, a motorized telescopic component, and a scanning component. The mounting rod is fixedly connected to the bottom of the mounting block, and the motorized telescopic component is disposed at the bottom end of the mounting rod. The scanning component includes a rotating pan-tilt head, a scanning probe, and a camera. The rotating pan-tilt head is disposed at the bottom end of the motorized telescopic component, and an integrated block is disposed on the rotating pan-tilt head. The scanning probe and the camera are both disposed on the integrated block.

[0007] By adopting the above technical solution, the surveyor can rotate multiple support rods to adapt to different sizes of the entrance to the confined space, and then stably set up the device at the entrance. Then, the electric telescopic component is operated to extend downward into the confined space underground. It stops when the specified depth is reached. At this time, the rotating gimbal drives the integrated block to rotate, so that the scanning probe and camera can collect data from multiple angles. The scanning measurement work can be completed without the surveyor entering the underground space, which greatly improves the safety of the surveyor's work.

[0008] Optionally, the support rod includes multiple connecting parts, and adjacent connecting parts are slidably connected.

[0009] By adopting the above technical solution, the length of the support rod can be adjusted by multiple connecting parts. When the inlet is narrow, the length of the support rod can be shortened; when the inlet is wide, the length of the support rod can be extended to improve the support stability, thereby improving the adaptability of the device. Moreover, the retracted support rod makes it easier to store and transport the device.

[0010] Optionally, the top of the mounting block is provided with a fixing platform, and the top of the fixing platform is provided with a connecting rod that can be threadedly connected to the electric telescopic component.

[0011] By adopting the above technical solution, when encountering limited spaces at high altitudes on the ground that require scanning measurements, the electric telescopic component can be removed from the mounting rod and threaded onto the connecting rod. This eliminates the need for surveyors to climb to heights, enabling bidirectional scanning measurements, further improving the device's adaptability, and making disassembly and assembly convenient.

[0012] Optionally, it also includes a monitoring component and a control component. The monitoring component includes a limit sensor, which is disposed at the end of the electric telescopic member away from the mounting block. The limit sensor is electrically connected to the electric telescopic member through the control component.

[0013] By adopting the above technical solution, the limit sensor can monitor the extension and retraction stroke of the electric telescopic component in real time. When the electric telescopic component touches the bottom of the confined space, the limit sensor will send a signal to the control component, and the control component will immediately control the electric telescopic component to stop extending and retracting, so as to avoid damage to the component due to excessive elongation.

[0014] Optionally, the monitoring component further includes a gas sensor, a temperature sensor, and a humidity sensor, all of which are disposed on the sidewall of the integrated block. The control component includes a main control chip and an early warning module. The gas sensor, the temperature sensor, and the humidity sensor are all electrically connected to the input terminal of the main control chip, and the early warning module is electrically connected to the output terminal of the main control chip.

[0015] By adopting the above technical solutions, the gas sensor can detect the concentration of harmful gases such as methane, carbon monoxide, and hydrogen sulfide, while the temperature and humidity sensors monitor the ambient temperature and humidity. The multi-dimensional sensors collect environmental data in a limited space in real time. When the concentration of harmful gases exceeds the standard or the temperature and humidity exceed the equipment's adaptability range, the main control chip receives the sensor's detection data and immediately controls the early warning module to issue an audible and visual warning, while suspending the measurement operation to prevent the equipment from being damaged in harsh environments.

[0016] Optionally, the monitoring component further includes multiple collision sensors, which are spaced apart on the side wall of the electric telescopic member. The collision sensors are electrically connected to the input terminal of the main control chip, and the output terminal of the main control chip is electrically connected to the electric telescopic member.

[0017] By adopting the above technical solution, when the electric telescopic component collides with the inner wall or obstacle of a confined space, the collision sensor quickly transmits the collision signal to the main control chip, and the main control chip immediately controls the electric telescopic component to brake urgently, so as to avoid scratch damage caused by continuous friction between the electric telescopic component and the obstacle.

[0018] Optionally, a protective sleeve is fitted onto the electric telescopic component.

[0019] By adopting the above technical solution, direct contact between the electric telescopic component and the inner wall or obstacles of the confined space is avoided, reducing damage caused by scratches and wear, and extending the service life of the device.

[0020] Optionally, supplementary lights are provided around the periphery of the integrated block.

[0021] By adopting the above technical solution, the underground space is usually dimly lit. Turning on the supplementary light can provide sufficient illumination to ensure that the camera can capture clear high-definition images and avoid blurry images and loss of details due to insufficient light.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The multi-section sliding connection structure of the support rod can achieve length adjustment, adapt to the limited space entrance of different diameters, improve the adaptability of the device, and facilitate the storage and transportation of the device after shrinking. 2. The electric telescopic component can be freely adjusted in length, driving the detection component to extend into the appropriate depth of the underground space. At the same time, the limit sensor and collision sensor can assist the electric telescopic component to move safely downward through the main control chip, minimizing the collision and scraping between the electric telescopic component and the inner wall or obstacles of the confined space. 3. Multi-dimensional sensors collect environmental data in a confined space in real time. When the concentration of harmful gases exceeds the standard or the temperature and humidity exceed the equipment's adaptability range, the main control chip receives the sensor's detection data and immediately controls the early warning module to issue an audible and visual warning, while suspending the measurement operation to improve operational safety. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the freely retractable safety scanning and measuring device applicable to a limited space, as described in this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Support component; 11. Mounting block; 111. Fixing platform; 112. Connecting rod; 12. Support rod; 121. Connecting part; 2. Detection component; 21. Mounting rod; 22. Electric telescopic component; 23. Scanning component; 231. Rotating gimbal; 232. Camera; 3. Monitoring component; 4. Locking nut; 5. Integrated block; 6. Fill light. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0026] Reference Figure 1 The present application discloses a freely retractable and safe scanning and measuring device suitable for limited spaces, which includes a support component 1, a detection component 2, a monitoring component 3 and a control component. The support component 1 is used to support the detection component 2 and the monitoring component 3. The detection component 2 is disposed on the support component 1, and the monitoring component 3 is disposed on the detection component 2. The control component receives the signal from the monitoring component 3, thereby driving the detection component 2 to perform corresponding actions.

[0027] Reference Figure 1 The support assembly 1 includes a mounting block 11 and multiple support rods 12. The mounting block 11 is cylindrical, and the ends of the multiple support rods 12 are circumferentially connected to the side wall of the mounting block 11 along its axis. In this embodiment, three support rods 12 are provided, and each support rod 12 includes multiple connecting parts 121. The connecting parts 121 are tubular, with the lower connecting part 121 slidably connected to the upper connecting part 121. A locking nut 4 is provided at the connection point of two adjacent connecting parts 121. The locking nut 4 is threaded to the bottom of the connecting part 121, and a clearance groove is provided at the bottom end of the connecting part 121 along its own axis. In specific implementation, when the locking nut 4 is screwed downward, the width of the clearance groove will decrease, thereby allowing the upper connecting part 121 to clamp the lower connecting part 121, thus fixing the two together.

[0028] During scanning and detection, if the entrance to the confined space is narrow, the length of the support rod 12 can be shortened; if the entrance is wide, the length of the support rod 12 can be extended to improve support stability, thereby improving the adaptability of the device. Moreover, the retracted support rod 12 facilitates the storage and transportation of the device.

[0029] Reference Figure 1 The detection component 2 includes a mounting rod 21, an electric telescopic component 22, and a scanning component 23. The top end of the mounting rod 21 is fixedly connected to the bottom of the mounting block 11, and the mounting rod 21 is set vertically. The top end of the electric telescopic component 22 is threadedly connected to the bottom end of the mounting rod 21. The electric telescopic component 22 is a multi-section nested carbon fiber telescopic rod driven by a motor. Each section of the telescopic rod is fitted with a protective sleeve on its outer wall. The protective sleeve is made of polyurethane material with a thickness of 2mm. The surface of the protective sleeve has a wear-resistant and anti-slip texture to protect the telescopic rod from being scratched by the inner wall of the confined space.

[0030] The scanning component 23 includes a rotating gimbal 231, a scanning probe, and a camera 232. The rotating gimbal 231 is fixedly connected to the bottom of the electrically telescopic component 22, allowing for horizontal angle adjustment from 0-360° and vertical angle adjustment from -90° to 90°. An integrated block 5 is detachably connected to the end of the rotating gimbal 231 away from the electrically telescopic component 22. Both the scanning probe and the camera 232 are mounted on the integrated block 5. In this embodiment, the scanning probe is a laser scanning probe with a measurement accuracy ≤0.05mm and a measurement range of 0.1-10m. The camera 232 uses a 240x high-definition zoom lens. For storage, the integrated block 5 is removed and placed in a storage bag to protect the scanning probe and camera 232 from damage.

[0031] Since the underground space is usually dimly lit, supplementary lights 6 are installed around the integrated block 5 to provide sufficient illumination and ensure that the camera 232 can capture clear high-definition images.

[0032] Additionally, refer to Figure 1 A fixed platform 111 is fixedly connected to the top of the mounting block 11. A connecting rod 112 is welded vertically to the top of the fixed platform 111, and the electric telescopic component 22 can be threadedly connected to the connecting rod 112. Therefore, when encountering limited spaces at high altitudes on the ground that require scanning measurements, the electric telescopic component 22 can be threadedly connected to the connecting rod 112, eliminating the need for surveyors to climb. This enables the device to perform bidirectional scanning measurements, improving its adaptability and making assembly and disassembly convenient.

[0033] Monitoring component 3 includes a limit sensor, a gas sensor, a temperature sensor, a humidity sensor, and a collision sensor. The limit sensor is fixedly installed at the end of the electric telescopic component 22 away from the mounting block 11. The gas sensor, temperature sensor, and humidity sensor are all fixedly installed on the integrated block 5. The gas sensor can detect the concentration of harmful gases such as methane, carbon monoxide, and hydrogen sulfide. The methane detection range of the gas sensor is 0-100% LEL, and the carbon monoxide detection range is 0-1000 ppm. The temperature and humidity sensors monitor the ambient temperature and humidity. The temperature sensor has a measurement range of -20℃ to 80℃, and the humidity sensor has a measurement range of 0-100% RH. The multi-dimensional sensors can collect environmental data in a confined space in real time. Multiple collision sensors are installed vertically on the side wall of the electric telescopic component 22. The collision sensors are piezoelectric sensors with a trigger threshold of 5N.

[0034] The control components include a main control chip, a wireless communication module, and a warning module. Limit sensors, gas sensors, temperature sensors, humidity sensors, and collision sensors are all electrically connected to the input terminal of the main control chip. The electric telescopic component 22 and the warning module are electrically connected to the output terminal of the main control chip. The wireless communication module has a Bluetooth backup transmission channel to improve the reliability of data transmission.

[0035] Specifically, the limit sensor can monitor the extension and retraction stroke of the electric telescopic component 22 in real time. When the electric telescopic component 22 contacts the bottom of the confined space, the limit sensor will send a signal to the control component, and the control component will immediately control the electric telescopic component 22 to stop extending and retracting, so as to avoid damage to the component due to excessive elongation.

[0036] When the gas sensor, temperature sensor, and humidity sensor detect that the concentration of harmful gas exceeds the standard or the temperature and humidity are outside the equipment's range, the main control chip receives the sensor data and immediately controls the early warning module to issue an audible and visual warning, while suspending the measurement operation to prevent the equipment from being damaged in harsh environments.

[0037] When the electric telescopic component 22 collides with the inner wall or obstacle of the confined space, the collision sensor quickly transmits the collision signal to the main control chip. The main control chip immediately controls the electric telescopic component 22 to brake in an emergency, so as to avoid scratch damage caused by continuous friction between the electric telescopic component 22 and the obstacle.

[0038] In addition, this device is equipped with a data transmission module, employing both wired and wireless transmission modes. The wireless transmission uses a 5.8GHz high-frequency wireless module, suitable for signal-shielded scenarios in confined spaces. The wired transmission uses a built-in flexible data cable that can be synchronously extended and retracted with the electric telescopic component 22, ensuring data transmission stability with a data packet loss rate of <0.1%. The control components also include a power module, which is a rechargeable lithium battery with a battery life of ≥8 hours and a low battery warning function.

[0039] The implementation principle of a freely extendable safety scanning and measuring device suitable for confined spaces according to an embodiment of this application is as follows: When scanning and measuring a confined underground space, first adjust the length of the support rod 12 and rotate the support rod 12 so that the support rod 12 can be stably supported around the entrance. Then, the electric telescopic component 22 is installed at the bottom of the connecting rod 112, and the integrated block 5 is installed on the rotating gimbal 231. The measuring personnel can operate the device via a mobile terminal to control the extension of the electric telescopic component 22, allowing the integrated block 5 to extend into the confined space. During the descent, if the electric telescopic component 22 collides with the side wall of the confined space, or the integrated block 5 collides with the bottom of the confined space, the collision sensor or limit sensor will send a signal to the main control chip. After receiving the signal, the main control chip will brake the electric telescopic component 22 and send an audible and visual warning signal to the mobile terminal. After the measuring personnel have made adjustments, the device will continue to descend. After reaching the designated depth, the rotating gimbal 231 drives the scanning probe and camera 232 to rotate for scanning and measurement. The collected data can be transmitted to the mobile terminal in real time through the data transmission module, and a three-dimensional model of the underground pipeline can be created based on the collected data. After the scanning measurement is completed, the surveyor controls the electric telescopic component 22 to retract via a mobile device. Then, the integrated block 5 and the electric telescopic component 22 are removed in sequence, and the support rod 12 is retracted. The scanning measurement of underground pipelines can be completed without the need for surveyors to enter a confined space. The operation is simple and convenient, greatly reducing the labor intensity of the staff and improving the safety of the operation.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A freely retractable and safe scanning and measuring device suitable for confined spaces, characterized in that: The device includes a support assembly (1) and a detection assembly (2). The support assembly (1) includes a mounting block (11) and multiple support rods (12). The multiple support rods (12) are circumferentially connected to the side wall of the mounting block (11) along the axis of the mounting block (11). The detection assembly (2) includes a mounting rod (21), an electric telescopic component (22), and a scanning component (23). The mounting rod (21) is fixedly connected to the bottom of the mounting block (11). The electric telescopic component (22) is disposed at the bottom end of the mounting rod (21). The scanning component (23) includes a rotating gimbal (231), a scanning probe, and a camera (232). The rotating gimbal (231) is disposed at the bottom end of the electric telescopic component (22). An integrated block (5) is disposed on the rotating gimbal (231). The scanning probe and the camera (232) are both disposed on the integrated block (5).

2. The freely retractable and safe scanning and measuring device suitable for confined spaces according to claim 1, characterized in that: The support rod (12) includes multiple connecting parts (121), and there is a sliding connection between two adjacent connecting parts (121).

3. The freely retractable and safe scanning and measuring device suitable for confined spaces according to claim 1, characterized in that: The mounting block (11) is provided with a fixed platform (111) on its top, and the fixed platform (111) is provided with a connecting rod (112) that can be threadedly connected to the electric telescopic component (22).

4. The freely retractable and safe scanning and measuring device suitable for confined spaces according to claim 1, characterized in that: It also includes a monitoring component (3) and a control component. The monitoring component (3) includes a limit sensor, which is located at one end of the electric telescopic member (22) away from the mounting block (11). The limit sensor is electrically connected to the electric telescopic member (22) through the control component.

5. The freely retractable and safe scanning and measuring device suitable for confined spaces according to claim 4, characterized in that: The monitoring component (3) further includes a gas sensor, a temperature sensor and a humidity sensor. The gas sensor, the temperature sensor and the humidity sensor are all disposed on the side wall of the integrated block (5). The control component includes a main control chip and an early warning module. The gas sensor, the temperature sensor and the humidity sensor are all electrically connected to the input terminal of the main control chip. The early warning module is electrically connected to the output terminal of the main control chip.

6. The freely retractable and safe scanning and measuring device suitable for confined spaces according to claim 5, characterized in that: The monitoring component (3) also includes multiple collision sensors, which are spaced apart on the side wall of the electric telescopic member (22). The collision sensors are electrically connected to the input terminal of the main control chip, and the output terminal of the main control chip is electrically connected to the electric telescopic member (22).

7. The freely retractable and safe scanning and measuring device suitable for confined spaces according to claim 1, characterized in that: The electric telescopic component (22) is fitted with a protective sleeve.

8. The freely retractable and safe scanning and measuring device suitable for confined spaces according to claim 1, characterized in that: The integrated block (5) is provided with supplementary lights (6) around its periphery.

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