Measuring device for underwater topographic surveying and mapping

Abstract

The utility model relates to the technical field of underwater surveying and mapping equipment, and particularly discloses a measuring device for underwater topographic surveying and mapping, which is characterized in that a mounting plate is arranged at the lower end of a surveying and mapping ship; the upper end of the electric push rod is connected to the mounting plate; the upper end of the containing box is connected to an output shaft of the first motor, and one side of the containing box is open. The measuring instrument is arranged in the placing box, and the measuring end of the measuring instrument faces the opening; the multiple damping units are arranged on the different side walls and the bottom of the containing box correspondingly. According to the utility model, the direction of the placing box is adjusted through the electric push rod and the first motor, so that the measuring area of the measuring instrument is adjusted; and in the measurement process, the shock absorption unit outside the placement box buffers the impact of foreign objects, so that the stability of the measurement process and the accuracy of the measurement result are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater surveying and mapping equipment, and particularly relates to a measuring device for underwater topographic surveying. Background Art

[0002] Underwater topographic survey is a specific survey in engineering survey, which measures the planar position and elevation of underwater points in rivers, lakes, reservoirs, harbors and near-shore waters for the surveying and mapping work of drawing underwater topographic maps. The main contents are to establish a control network on land and conduct underwater topographic surveying. Underwater topographic surveying includes sounding point positioning, water depth measurement, water level observation and mapping. The methods of sounding point positioning include cross-line method, forward intersection method of theodolite or plane table, back intersection method of sextant, polar coordinate method of total station tachymeter, radio positioning method, underwater acoustic positioning and differential GPS positioning method, etc. Water depth measurement uses tools such as sounding rod, sounding lead and echo sounder. The underwater elevation is calculated based on the results of water depth measurement and water level observation, and finally the underwater terrain is represented by isobaths (or contour lines).

[0003] However, during underwater measurement, the measuring instrument is easily impacted by hard objects such as reefs, which may damage the measuring instrument, affect the measurement results and cause inconvenience in use. Content of the Utility Model

[0004] The purpose of the utility model is to provide a measuring device for underwater topographic surveying, so as to solve the problem that the measuring device is impacted by hard objects during underwater measurement, resulting in damage and affecting the measurement results.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] A measuring device for underwater topographic surveying includes a mounting plate, an electric push rod, a placement box and a shock absorption unit;

[0007] The mounting plate is arranged at the lower end of the surveying ship;

[0008] The electric push rod has its upper end connected to the mounting plate and its lower end connected to a first motor, and the output shaft of the first motor faces downward;

[0009] The placement box has its upper end connected to the output shaft of the first motor, and one side of the placement box is open; the measuring instrument is arranged in the placement box, and the measuring end of the measuring instrument faces the opening;

[0010] There are multiple shock absorption units, which are respectively arranged on different side walls and the bottom of the placement box, and each shock absorption unit includes a first shock pad, a shock absorption spring, a second shock pad and a baffle; the first shock pad is arranged on the side wall or the bottom of the placement box, one end of the shock absorption spring is connected to the first shock pad, the other end is connected to the second shock pad, and the baffle is fixedly connected to the second shock pad.

[0011] As a further technical solution of the above scheme, it further includes a connecting frame which is fixedly connected to the measuring instrument. A threaded cylinder is provided on the connecting frame, and a bolt passes through the placement box and the threaded cylinder and is fixed with a nut.

[0012] As a further technical solution of the above scheme, a slot is provided at the bottom of the placement box, and a plug is provided at the lower end of the measuring instrument. After the plug is inserted into the slot, it is fixed by passing a bolt through.

[0013] Compared with the prior art, the utility model has the following advantages and beneficial effects: In the utility model, the direction of the placement box is adjusted through the electric push rod and the first motor, and then the measurement area of the measuring instrument is adjusted; during the measurement process, the shock absorption unit outside the placement box buffers the impact of external objects, ensuring the stability of the measurement process and the accuracy of the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 is a front structural schematic diagram of the utility model.

[0016] Figure 3 is a schematic diagram of the utility model in use state.

[0017] Figure 4 is Figure 3 a schematic enlarged view of the structure at A in

[0018] The meanings of the reference numerals in the figure are as follows: mounting plate - 1; electric push rod - 2; placement box - 3; slot - 31; shock absorption unit - 4; first shock pad - 41; shock absorption spring - 42; second shock pad - 43; baffle - 44; first motor - 5; measuring instrument - 6; connecting frame - 7; threaded cylinder - 71; plug - 8. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model, so as to have a further understanding of the concept, the technical problems solved, the technical features constituting the technical solutions, and the technical effects brought by the present utility model.

[0020] As Figures 1 to 4 shown, a measuring device for underwater topographic surveying includes a mounting plate 1, an electric push rod 2, a placement box 3, and a shock absorption unit 4;

[0021] The mounting plate 1 is arranged at the lower end of the surveying ship;

[0022] The electric push rod 2 has its upper end connected to the mounting plate 1 and its lower end connected to the first motor 5, and the output shaft of the first motor 5 faces downward;

[0023] The placement box 3 is connected to the output shaft of the first motor 5 at the upper end, and one side of the placement box 3 is open; the measuring instrument 6 is arranged inside the placement box 3, and the measuring end of the measuring instrument 6 faces the opening;

[0024] The shock absorption units 4 are provided in multiple numbers and are respectively arranged on different side walls and the bottom of the placement box 3, and include a first shock absorption pad 41, a shock absorption spring 42, a second shock absorption pad 43 and a baffle 44; the first shock absorption pad 41 is arranged on the side wall or the bottom of the placement box 3, one end of the shock absorption spring 42 is connected to the first shock absorption pad 41, and the other end is connected to the second shock absorption pad 43, and the baffle 44 is fixedly connected to the second shock absorption pad 43.

[0025] When using this device, it is generally used in conjunction with a surveying ship. The mounting plate 1 is installed at the lower end of the surveying ship, and the electric push rod 2 is used to adjust the height of the placement box 3 to make it in the measurement position. The first motor 5 is started, and the first motor 5 drives the placement box 3 to rotate. Since the measuring instrument 6 is placed inside the placement box 3, the measuring instrument 6 is driven to rotate, and the underwater terrain at different angles can be measured; when the placement box 3 moves underwater to adjust the position, if it encounters an external object impact, it first contacts the shock absorption unit 4. The baffle 44 is stressed and rebounds through the elastic force of the shock absorption spring 42, and cooperates with the first shock absorption pad 41 and the second shock absorption pad 43 to buffer and protect the placement box 3, and the shock absorption units 4 are arranged at each part, so as to achieve all-round protection of the measuring instrument 6 and ensure the normal progress of the measurement work.

[0026] As Figure 4 shown, as a preferred embodiment, it further includes a connecting frame 7. The connecting frame 7 is fixedly connected to the measuring instrument 6, and a threaded cylinder 71 is arranged on the connecting frame 7. After the bolt passes through the placement box 3 and the threaded cylinder 71, it is fixed with a nut. In this embodiment, in order to stably connect the measuring instrument 6, a connecting frame 7 is arranged on one side of the measuring instrument 6 for connection, and after the bolt passes through the placement box 3 and the threaded cylinder 71, the fixation is completed, forming a detachable connection, which is convenient for disassembling and assembling the measuring instrument.

[0027] As Figure 4 shown, as a preferred embodiment, the bottom of the placement box 3 is provided with a slot 31, and the lower end of the measuring instrument 6 is provided with an insertion block 8. After the insertion block 8 is inserted into the slot 31, it is fixed by passing a bolt through. In this embodiment, after the slot 31 is arranged on the placement box 3, the measuring instrument 6 and the placement box 3 are connected by the insertion block 8, and a detachable connection is also formed, which is convenient for disassembling and assembling the measuring instrument. More preferably, the two methods of arranging the connecting frame 7 on the side and the insertion block 8 on the bottom can be adopted at the same time, so that the connection is more stable and the measuring instrument 6 is prevented from detaching from the placement box 3 after being impacted.

[0028] The "connection" and "fixation" mentioned in the description of the present utility model can be fixed connection, machining and forming, welding, or mechanical connection. The specific meanings of the above terms in the present utility model should be understood according to the specific circumstances.

[0029] In the description of the present utility model, terms such as "center", "upper", "lower", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying a specific orientation that the indicated device or element must have. Therefore, it should not be construed as a limitation to the present utility model.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A measuring device for underwater topographic mapping, characterized in that: It comprises a mounting plate (1), an electric push rod (2), a placement box (3) and a shock absorbing unit (4); A mounting plate (1) is arranged at the lower end of the surveying vessel; An electric push rod (2), the upper end of which is connected to the mounting plate (1), and the lower end of which is connected to the first motor (5), and the output shaft of the first motor (5) is downward; A placement box (3), the upper end of which is connected to the output shaft of the first motor (5), and one side of the placement box (3) is open; a measuring instrument (6) is arranged in the placement box (3), and a measuring end of the measuring instrument (6) faces the opening; A plurality of shock absorbing units (4) are provided, which are respectively arranged on different side walls and the bottom of the placement box (3), and include a first shock absorbing pad (41), a shock absorbing spring (42), a second shock absorbing pad (43) and a baffle (44); the first shock absorbing pad (41) is arranged on the side wall or the bottom of the placement box (3), one end of the shock absorbing spring (42) is connected to the first shock absorbing pad (41), and the other end is connected to the second shock absorbing pad (43), and the baffle (44) is fixedly connected to the second shock absorbing pad (43).

2. A measuring device for underwater topographic mapping as claimed in claim 1, characterized in that: It also includes a connecting frame (7), which is fixedly connected to the measuring instrument (6), and a threaded barrel (71) is provided on the connecting frame (7). Bolts pass through the placement box (3) and the threaded barrel (71) and are then fixed using nuts.

3. A measuring device for underwater topographic mapping as claimed in claim 1, characterized in that: The bottom of the placement box (3) is provided with a slot (31), and the lower end of the measuring instrument (6) is provided with an insert block (8). After the insert block (8) is inserted into the slot (31), it is fixed by passing a bolt through it.

Images