A measuring device for underground pipelines

Abstract

The utility model discloses a kind of measuring devices for underground pipeline, including inner layer support rod, middle layer connecting pipe, outer layer holding pipe, protractor, caliper and measuring device, inner layer support rod is slidably arranged in middle layer connecting pipe, inner layer support rod side wall is equipped with scale, middle layer connecting pipe upper end is equipped with first limit structure, middle layer connecting pipe is movably inserted in outer layer holding pipe, outer layer holding pipe upper end is equipped with second limit structure, outer layer holding pipe top is equipped with protractor, the side wall of middle layer connecting pipe located above outer layer holding pipe is equipped with caliper, middle layer connecting pipe lower end is connected with measuring device, and the side wall of outer layer holding pipe lower end is equipped with the opening that can be rotated with middle layer connecting pipe and measuring device.This utility model can be contacted to rain grate bottom by inner layer support rod sliding down, cooperate with the scale of side wall, complete the measurement of rain grate depth;By adjusting and moving middle layer connecting pipe, drive measuring device to be positioned to the connecting pipe required to be measured, cooperate with protractor measurement to obtain the horizontal angle of each connecting pipe.

Description

Technical Field

[0001] This utility model relates to the field of measuring device technology, specifically to a measuring device for underground pipelines. Background Technology

[0002] Underground pipelines refer to pipes and cables buried underground. Underground pipeline surveying is an important basic task in urban planning, construction and management. It is crucial for ensuring the normal operation of the city and the safety of residents' lives. When surveying underground pipelines...

[0003] In urban drainage systems, storm drain grates and their connecting pipes to the main underground pipelines are crucial components, efficiently collecting rainwater from the road surface and channeling it into the main drainage network. During engineering design, construction acceptance, and subsequent maintenance and inspection, it is necessary to measure the horizontal angle of the connecting pipes; however, directly measuring this manually by going down into the manhole is extremely inconvenient.

[0004] Therefore, there is an urgent need for a measuring device for underground pipelines to solve the problem of measuring the horizontal angle of connecting pipes. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a measuring device for underground pipelines to solve the problem of measuring the horizontal angle of connecting pipes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A measuring device for underground pipelines includes an inner support rod, a middle connecting pipe, an outer holding pipe, a protractor, calipers, and a measuring device. The inner support rod is vertically slidable within the middle connecting pipe. The side wall of the inner support rod has vertical graduations. The upper end of the middle connecting pipe has a first limiting structure to restrict the sliding of the inner support rod. The middle connecting pipe is movably inserted into the outer holding pipe. The upper end of the outer holding pipe has a second limiting structure to restrict the movement of the middle connecting pipe. The top of the outer holding pipe has an arc-shaped protractor. The side wall of the middle connecting pipe above the outer holding pipe has vertical calipers. The lower end of the middle connecting pipe is connected to the measuring device. The lower side wall of the outer holding pipe has an opening that allows the middle connecting pipe to rotate with the measuring device.

[0007] To optimize the above technical solution, the specific measures also include: Furthermore, the first limiting structure includes a first limiting nut and several first limiting rods. Several first limiting rods are connected in a ring at intervals around the upper end of the middle connecting tube. The wall thickness of the first limiting rods gradually increases from bottom to top. The outer sides of the several first limiting rods are provided with a vertical external thread. The first limiting nut is threadedly connected to the outer side of the several first limiting rods. The second limiting structure includes a second limiting nut and several second limiting rods. Several second limiting rods are connected in a ring at intervals around the upper end of the outer holding tube. The wall thickness of the second limiting rods gradually increases from bottom to top. The outer sides of the several second limiting rods are provided with a vertical external thread. The second limiting nut is threadedly connected to the outer side of the several second limiting rods.

[0008] Furthermore, the side wall of the middle connecting pipe is provided with a vertical sliding groove, and the caliper is slidably engaged in the sliding groove.

[0009] Furthermore, the lower end of the middle connecting tube is connected to a measuring device via a connecting frame, and the lower side wall of the outer holding tube has an opening that allows the connecting frame to rotate with the measuring device.

[0010] Furthermore, the connecting bracket is L-shaped, with one side of the L-shaped connecting bracket connected to the lower end sidewall of the middle connecting tube, and the other side extending away from the middle connecting tube.

[0011] Furthermore, the measuring device includes a camera, which is connected to the lower end of the middle connecting tube.

[0012] Furthermore, the measuring device also includes a cross laser emitter connected to the lower end of the middle connecting tube, and the camera connected to the upper end of the cross laser emitter.

[0013] Furthermore, the measuring device also includes an LED fill light, which is disposed on the side of the cross laser emitter.

[0014] Furthermore, there are two LED fill lights, which are symmetrically arranged on both sides of the cross laser emitter.

[0015] Furthermore, a support pad is provided at the lower end of the inner support rod.

[0016] The beneficial effects of this utility model are: This invention employs a three-tiered rod structure consisting of an inner support rod, a middle connecting tube, and an outer holding tube. In use, the vertically sliding inner support rod slides down to contact the bottom of the grate. The depth of the grate is measured using the markings on the side wall of the inner support rod, improving measurement efficiency. A first limiting structure secures the inner support rod when it is not in use, facilitating transport and use. The middle connecting tube is moved by rotating or adjusting its position, driving the measuring device at its lower end to position itself where the required measurement is needed. A second limiting structure secures the middle connecting tube when it is not in use. Using calipers at its upper end, along with a protractor horizontally positioned on the outer holding tube (which is relatively fixed by the operator), the horizontal angles of each connecting tube are measured, thus solving the problem of measuring the horizontal angles of the connecting tubes.

[0017] This invention integrates depth measurement, angle measurement, and pipe endoscopy functions into one device, offering multiple uses. It uses LED supplementary lighting and a cross laser emitter to locate the connecting pipe, and calipers and a protractor for direct reading, greatly improving the accuracy and reliability of angle measurement. With only one setup, a single person can complete the measurement and recording of required parameters, significantly improving fieldwork efficiency. Furthermore, the measurement personnel do not need to extend their bodies excessively into the grate opening, simplifying the work process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a measuring device for underground pipelines proposed in this utility model; Figure 2 This is a partial structural diagram of the upper end of a measuring device for underground pipelines proposed in this utility model; Figure 3 This is a schematic diagram of the connection of the measuring device for an underground pipeline measuring device proposed in this utility model.

[0019] Attached reference numerals: 1. Inner support rod, 2. First limiting nut, 3. Caliper, 4. Protractor, 5. Second limiting nut, 6. Outer grip tube, 7. Middle connecting tube, 8. Connecting frame, 9. Camera, 10. Cross laser emitter, 11. Support pad, 12. LED fill light. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings.

[0021] As attached Figure 1As shown in the figure, an underground pipeline measuring device according to an embodiment of the present invention includes an inner support rod 1, a middle connecting pipe 7, an outer holding pipe 6, a protractor 4, a caliper 3, and a measuring device. The inner support rod 1 is vertically slidably disposed in the middle connecting pipe 7. The side wall of the inner support rod 1 is provided with a scale along the vertical direction. The upper end of the middle connecting pipe 7 is provided with a first limiting structure for restricting the sliding of the inner support rod 1. The middle connecting pipe 7 is movably inserted in the outer holding pipe 6. The upper end of the outer holding pipe 6 is provided with a second limiting structure for restricting the movement of the middle connecting pipe 7. The top of the outer holding pipe 6 is provided with an arc-shaped protractor 4. The side wall of the middle connecting pipe 7 located above the outer holding pipe 6 is provided with a vertical caliper 3. The lower end of the middle connecting pipe 7 is connected to the measuring device. The lower side wall of the outer holding pipe 6 is provided with an opening that allows the middle connecting pipe 7 to rotate with the measuring device.

[0022] This invention employs a three-tiered rod structure consisting of an inner support rod 1, a middle connecting tube 7, and an outer holding tube 6. In use, the vertically sliding inner support rod 1 slides down to contact the bottom of the grate. The depth of the grate is measured using the markings on the side wall of the inner support rod 1, improving measurement efficiency. A first limiting structure secures the inner support rod 1 when it is not in use, facilitating transport and use. The middle connecting tube 7 is moved by rotating or adjusting its position, driving the measuring device at its lower end to position itself relative to the desired connecting tube. A second limiting structure secures the middle connecting tube 7 when it is not in use. Using the caliper 3 at its upper end, along with the protractor 4 horizontally positioned on the outer holding tube 6 (which is relatively fixed by the operator), the horizontal angles of each connecting tube are measured, thus solving the problem of measuring the horizontal angles of the connecting tubes.

[0023] In the above scheme, the telescopic structure between the inner support rod 1, the middle connecting tube 7 and the outer holding tube 6 can adapt to rain grates of different depths and reduce the volume occupied when stored.

[0024] As attached Figure 2 As shown, in a specific embodiment based on the above, the first limiting structure includes a first limiting nut 2 and several first limiting rods. Several first limiting rods are connected in a ring at intervals around the upper end of the middle connecting tube 7. The wall thickness of the first limiting rods gradually increases from bottom to top. The outer sides of the several first limiting rods are provided with vertical external threads. The first limiting nut 2 is threadedly connected to the outer sides of the several first limiting rods. The second limiting structure includes a second limiting nut 5 and several second limiting rods. Several second limiting rods are connected in a ring at intervals around the upper end of the outer holding tube 6. The wall thickness of the second limiting rods gradually increases from bottom to top. The outer sides of the several second limiting rods are provided with vertical external threads. The second limiting nut 5 is threadedly connected to the outer sides of the several second limiting rods.

[0025] Therefore, during use, the first limiting nut 2 or the second limiting nut 5 can be driven to move downward along the thread as needed, so that the first limiting support rod or the second limiting support rod is no longer compressed, thereby releasing the restriction on the inner layer support rod 1 and the middle layer connecting tube 7. Alternatively, the first limiting nut 2 or the second limiting nut 5 can be driven to move upward along the thread as needed, so that the first limiting support rod or the second limiting support rod remains compressed, thereby completing the restriction on the inner layer support rod 1 and the middle layer connecting tube 7.

[0026] In another specific embodiment based on the above, the side wall of the middle connecting tube 7 is provided with a vertical groove, and the caliper 3 is slidably engaged in the groove. This allows the caliper 3 to move vertically along the groove, thereby maintaining contact with the upper surface of the protractor 4 during the adjustment of the middle connecting tube 7, improving the convenience of reading and the accuracy of measurement.

[0027] As attached Figure 3 As shown, in another specific embodiment based on the above, the lower end of the middle connecting tube 7 is connected to a measuring device via a connecting frame 8, and the lower side wall of the outer holding tube 6 is provided with an opening that allows the connecting frame 8 to rotate with the measuring device.

[0028] The aforementioned connecting bracket 8 is L-shaped, with one side connected to the lower side wall of the middle connecting pipe 7 and the other side extending away from the middle connecting pipe 7. This allows for the angular positioning of the connecting pipe using the side of the connecting bracket 8 extending away from the middle connecting pipe 7.

[0029] In another specific embodiment based on the above, the measuring device includes a camera 9, which is connected to the lower end of the intermediate connecting tube 7. Thus, recording and observation can be performed via the camera 9.

[0030] The aforementioned measuring device also includes a cross laser emitter 10, which is connected to the lower end of the middle connecting pipe 7, and a camera 9 is connected to the upper end of the cross laser emitter 10. This facilitates the positioning of the connecting pipe using the perpendicularly intersecting cross laser lines emitted by the cross laser emitter 10. In this solution, a portable monitor can also be added as needed. The portable monitor is electrically connected to the camera 9 via Bluetooth to display real-time images of the inside of the pipe.

[0031] The aforementioned measuring device also includes an LED fill light 12, which is located on the side of the cross laser emitter 10.

[0032] Among them, there are two LED fill lights 12, which are symmetrically arranged on both sides of the cross laser emitter 10.

[0033] In another specific embodiment based on the above, a rubber support pad 11 is provided at the lower end of the inner support rod 1. This allows the lower end of the inner support rod 1 to be anti-slip and cushioned, reducing damage to the device.

[0034] One specific embodiment of this utility model is as follows: Open the top cover of the grate and insert the device vertically.

[0035] Loosen the first limiting nut 2, and the inner support rod 1 moves downward until the support pad 11 is firmly in contact with the bottom of the grate. Then tighten the first limiting nut 2, and the grate depth can be read from the scale on the inner support rod 1.

[0036] Turn on camera 9, cross laser emitter 10, and LED fill light 12.

[0037] The operator can observe through a remote monitor, loosen the second limit nut 5, and rotate or move the middle connecting pipe 7 up and down to align the camera 9 and other devices with the connection port of the drain pipe, thereby locating the connection port of the drain pipe; at this time, the caliper 3 can be used in conjunction with the scale indicated on the protractor 4 to obtain the horizontal tilt angle of the drain pipe on the preset coordinates, or to obtain information such as the horizontal angle relationship between adjacent drain pipes.

[0038] This invention features high integration and ease of operation, enabling one-time completion of depth, angle, and internal image surveys, significantly improving work efficiency and measurement accuracy.

[0039] This utility model has the following beneficial effects: Highly integrated: It combines depth measurement, angle measurement, and pipe endoscopy functions into one device, making it multi-functional.

[0040] Precise measurement: The positioning of the connecting tube is completed by setting up LED supplementary light 12 and cross laser emitter 10, and the reading is directly taken by setting up calipers 3 and protractor 4, which greatly improves the accuracy and reliability of angle measurement.

[0041] Simple and quick to operate: With just one placement of the equipment, a single person can complete the measurement and recording of the required parameters, significantly improving the efficiency of field operations.

[0042] Safe and reliable: Surveyors do not need to put too much of their body into the grate opening, simplifying the operation process.

[0043] It should be noted that the terms such as "upper", "lower", "left", "right", "front", and "back" used in this utility model are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0044] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within its protection scope.

Claims

1. A measuring device for underground pipelines, characterized in that: The device includes an inner support rod (1), a middle connecting tube (7), an outer holding tube (6), a protractor (4), calipers (3), and a measuring device. The inner support rod (1) is vertically slidably installed in the middle connecting tube (7). The side wall of the inner support rod (1) is vertically graduated. The upper end of the middle connecting tube (7) is provided with a first limiting structure to restrict the sliding of the inner support rod (1). The middle connecting tube (7) is movably inserted in the outer holding tube (6). The upper end of the outer holding tube (6) is provided with a second limiting structure to restrict the movement of the middle connecting tube (7). The top of the outer holding tube (6) is provided with an arc-shaped protractor (4). The side wall of the middle connecting tube (7) located above the outer holding tube (6) is provided with a vertical caliper (3). The lower end of the middle connecting tube (7) is connected to a measuring device. The lower side wall of the outer holding tube (6) is provided with an opening that allows the middle connecting tube (7) to rotate with the measuring device.

2. The measuring device for underground pipelines according to claim 1, characterized in that: The first limiting structure includes a first limiting nut (2) and several first limiting rods. Several first limiting rods are connected in a ring at intervals at the upper end of the middle connecting tube (7). The wall thickness of the first limiting rods gradually increases from bottom to top. The outer sides of several first limiting rods are provided with vertical external threads. The first limiting nut (2) is threaded to the outer side of several first limiting rods. The second limiting structure includes a second limiting nut (5) and several second limiting rods. Several second limiting rods are connected in a ring at intervals at the upper end of the outer holding tube (6). The wall thickness of the second limiting rods gradually increases from bottom to top. The outer sides of several second limiting rods are provided with vertical external threads. The second limiting nut (5) is threaded to the outer side of several second limiting rods.

3. The measuring device for underground pipelines according to claim 1, characterized in that: The side wall of the middle connecting pipe (7) is provided with a vertical sliding groove, and the caliper (3) is slidably engaged in the sliding groove.

4. The measuring device for underground pipelines according to claim 1, characterized in that: The lower end of the middle connecting tube (7) is connected to a measuring device via a connecting frame (8), and the lower side wall of the outer holding tube (6) is provided with an opening that allows the connecting frame (8) to rotate with the measuring device.

5. A measuring device for underground pipelines according to claim 4, characterized in that: The connecting frame (8) is L-shaped. One side of the L-shaped connecting frame (8) is connected to the lower side wall of the middle connecting pipe (7), and the other side extends away from the middle connecting pipe (7).

6. A measuring device for underground pipelines according to claim 1, characterized in that: The measuring device includes a camera (9), which is connected to the lower end of the middle connecting tube (7).

7. A measuring device for underground pipelines according to claim 6, characterized in that: The measuring device also includes a cross laser emitter (10), which is connected to the lower end of the middle connecting tube (7), and the camera (9) is connected to the upper end of the cross laser emitter (10).

8. A measuring device for underground pipelines according to claim 7, characterized in that: The measuring device also includes an LED fill light (12), which is located on the side of the cross laser emitter (10).

9. A measuring device for underground pipelines according to claim 8, characterized in that: Two LED fill lights (12) are provided, and the two LED fill lights (12) are symmetrically arranged on both sides of the cross laser emitter (10).

10. A measuring device for underground pipelines according to claim 1, characterized in that: The lower end of the inner support rod (1) is provided with a support pad (11).

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