Information recording and surveying device based on underwater environment

Abstract

The invention relates to an underwater environment-based information recording and surveying device, which comprises a plurality of detection sensors mounted at the front end of a device body, each kind of sensors is provided with a plurality of sensors arranged in a straight line, and all kinds of sensors are mounted on a front end plate at the front end of the device body in an annular array after being arranged respectively; each sensor is mounted on a mounting seat on a mounting arm, each mounting seat comprises a driven gear coaxial with the sensor, two adjacent driven gears on each mounting arm are meshed, a first gear is meshed with a driving gear rotationally mounted in the center of the front end plate, a third gear is meshed with an inner gear ring fixed on the front end plate, and the first gear and the second gear are meshed with each other. The driving gear is located in the center of the inner gear ring and externally meshed with a transmission gear driven by a motor, and the transmission gear is installed on the front end plate to drive all the sensors to rotate around the center of the front end plate. According to the invention, detection and investigation of underwater environment information can be carried out more comprehensively and reliably.

Description

Technical Field

[0001] This invention relates to the field of underwater environmental survey equipment technology, specifically to an underwater environmental information recording and surveying device. Background Technology

[0002] Most existing underwater environmental surveying equipment uses only common, centralized sensors for underwater environmental detection, such as optical imaging sensors, acoustic sensors, water quality sensors, water temperature sensors, and depth sensors. One of each type of sensor is installed on the surveying equipment to detect the corresponding underwater environmental information. This type of existing surveying equipment can only collect a very limited amount of data, and if a sensor malfunctions, the corresponding type of environmental information cannot be collected, leading to data loss and significant inconvenience.

[0003] Generally speaking, the underwater environment is extremely complex, encompassing many aspects such as water temperature, water pressure, water composition (e.g., pH, dissolved oxygen, concentrations of various salt ions), water flow speed and direction, underwater topography, and aquatic life. If the number and types of sensors are limited, only data from a limited range of dimensions can be obtained, making it difficult to form a comprehensive and detailed understanding of the underwater environment. For example, installing only sensors to measure water temperature and pressure will not reveal crucial information such as whether the water is polluted or the health of the underwater ecosystem, leading to biased assessments of the entire underwater environment and overlooking many important features and potential problems.

[0004] Those skilled in the art have attempted to deploy multiple sensors, but achieving such a high density of sensors is challenging, especially in certain detection scenarios. It's difficult to effectively control the movement of all or some of the sensors because, generally, due to the principle of a stable reference base, the relative positions of the sensors should ideally remain constant to facilitate the construction of a stable environmental information system. For example, if some sensors remain stationary or rotate asynchronously with the others, the environmental information detected simultaneously by each sensor will be difficult to integrate. Furthermore, laying such a large number of signal lines is particularly difficult because the underwater environment differs from that on land; the resistance to movement of signal lines is high, and centralized laying is challenging. Achieving centralized, synchronous rotation of a large number of sensors would inevitably lead to increased signal line entanglement and wear, and even frequent malfunctions. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an information recording and surveying device based on the underwater environment to solve the technical problems mentioned in the background art.

[0006] This invention is achieved through the following technical solution:

[0007] An underwater environment-based information recording and surveying device includes a device body that can move underwater and several detection sensors installed at the front end of the device body. The detection sensors include optical imaging sensors, acoustic sensors, water quality sensors, water temperature sensors, and depth sensors. Each type of sensor has three arranged in a straight line. After all types of sensors are arranged, they are installed in a circular array on the front end plate at the front end of the device body.

[0008] Each sensor is mounted on a mounting base on a mounting arm. There are three mounting bases along the length of the mounting arm. Each mounting base includes a driven gear coaxial with the sensor. Two adjacent driven gears on each mounting arm mesh. The first gear meshes with the driving gear rotatably mounted at the center of the front end plate. The third gear meshes with an internal gear ring fixed on the front end plate. The internal gear ring is coaxial with the driving gear. The driving gear is located at the center of the internal gear ring and meshes externally with a transmission gear driven by a motor. The transmission gear is mounted on the front end plate so that all sensors rotate around the center of the front end plate when it rotates.

[0009] Furthermore, the end of the mounting arm opposite to the internal gear ring is integrally connected to a collar. The collar is coaxially rotatably mounted on a central cylinder near its front end. The central cylinder is coaxially fixed to the center of the front end plate. This central cylinder can be integrally formed with the front end plate, with its rear end located within the device body. This allows signal lines to be introduced rearward into the device body for connection to the corresponding sensor's functional module. The drive gear is coaxially rotatably mounted on the end of the central cylinder protruding from the front end plate, located at the front end of the collar.

[0010] Furthermore, the signal lines of the sensors on each mounting arm are installed in a cable conduit. A portion of the cable conduit is built into the mounting arm and installed along the length of the mounting arm. The end of the cable conduit away from the sensor extends radially into the shaft hole of the central cylinder, bends at 90 degrees, and extends axially towards the rear end of the central cylinder to enter the interior of the device body.

[0011] Furthermore, a bushing is coaxially mounted on the portion of the cable conduit inside the front port of the central cylinder, and the outer wall of the bushing is in rolling contact with the inner wall of the central cylinder.

[0012] Furthermore, the motor is installed at the front end of the device body, and the main shaft of the motor is coaxially fixed to the gear shaft of the transmission gear. The gear shaft passes through the front end plate and extends into the device body.

[0013] Furthermore, the front end plate is a regular hexagonal plate structure, the internal gear ring is fixed at the edge of the front end plate, the internal gear ring can be integrally formed with the front end plate, the transmission gear is located in front between two adjacent mounting arms, and the end face of the internal gear ring can also be detachably installed with a transparent cover plate, the cover plate completely sealing the inside of the internal gear ring.

[0014] Furthermore, a bearing is rotatably mounted on the mounting arm, with the bearing axis perpendicular to the length direction of the mounting arm. The mounting part at the bottom of the driven gear is fixed in the inner ring of the bearing, and the outer ring of the bearing is fixedly mounted on the surface of the mounting arm, so that the driven gear can be mounted freely.

[0015] Furthermore, on the side of the mounting arm away from the bearing, a double-threaded positioning sleeve is rotatably mounted coaxially with the bearing. The double-threaded positioning sleeve is screwed into the mounting arm in a threaded fit, and when the positioning ring at its end contacts the surface of the mounting arm, it is screwed in all the way. The inner sidewall of the double-threaded positioning sleeve has an integral limiting ring coaxially.

[0016] The mounting base also includes a mounting sleeve that is coaxially interference-fitted with the driven gear. The bottom end of the mounting sleeve has a positioning ring, and a clamping plate with a shaft hole is screwed into the bottom port of the double-threaded positioning sleeve. A sealing plug with a shaft hole is fixed at the end of the clamping plate. When the double-threaded positioning sleeve is screwed all the way in and the clamping plate is also screwed all the way in inside the double-threaded positioning sleeve, the mounting sleeve is installed and fixed in place, and the sealing plug is pressed and sealed against the inner wall of the mounting sleeve. The shaft holes of the clamping plate and the sealing plug are for the cable conduit to pass through in a press-fit contact.

[0017] Furthermore, the cable conduit includes a bend at one end, the bend comprising a plug section coaxially disposed within the mounting sleeve, a crossover section radially arranged outside the clamping plate, and a positioning section parallel to the plug section. The free end of the plug section exposes the core of the signal line, allowing it to contact the signal line connection end screwed into the bottom of the double-threaded positioning sleeve. The positioning section has a splined outer side to prevent rotation when inserted into the mounting arm, and to ensure coaxial mounting of the plug section and the mounting sleeve. The port of the plug section exposes the core end of the signal line, allowing it to connect with the connection end of the signal line embedded in the remaining cable conduit within the mounting arm.

[0018] Furthermore, elastic sealing gaskets are provided between the sensor and the port of the double-layer threaded positioning sleeve, as well as between the positioning tube section and the flange and mounting arm fixed on the outside.

[0019] The beneficial effects of this invention are as follows:

[0020] This underwater environment information recording and surveying device utilizes a ring array of multiple rows of different types of detection sensors to maximize the number and types of sensors. All sensors can rotate synchronously for detection. For example, during real-time detection, the position of each sensor can be adjusted synchronously by rotating by corresponding angles. Alternatively, when using individual sensors capable of motion detection, these sensors can be synchronously and continuously rotated for detection, adapting to various detection needs. This ensures that all types of sensors maintain a relatively stable positional relationship when detecting underwater environmental information, thus constructing a relatively stable environmental information system. This allows for more comprehensive acquisition of underwater environmental information data, avoiding problems such as single sensor failure, unique detection data, inability to compare and reference the accuracy of the same environmental information, and limited detection range.

[0021] In addition, a dedicated signal line installation channel was designed, and cable conduits with special connection structures were used to neatly arrange and centrally thread the signal lines of such a large number of sensors. This avoided the problem of difficult signal line arrangement due to the large number of sensors, and enabled the full implementation of the structural design for detecting various types of array-type and motion-type sensors.

[0022] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the front end face of the underwater environment-based information recording and surveying device of the present invention;

[0024] Figure 2 for Figure 1 Enlarged view of the end face of the central cylinder;

[0025] Figure 3 When a bushing is provided, Figure 2 A schematic diagram of the structure shown;

[0026] Figure 4 for Figure 3 Sectional view of AA;

[0027] Figure 5 This is a side view of the underwater environment-based information recording and surveying device of the present invention at the front end;

[0028] Figure 6 for Figure 5 A partial cross-sectional view of the structure shown after being axially cut through the central cylinder;

[0029] Figure 7 This is a cross-sectional view of a detection sensor mounted on a mounting arm, with the cutting direction along the length of the mounting arm.

[0030] In the diagram: 1. Device body; 2. Front end plate; 3. Mounting arm; 4. Mounting base; 4. Driven gear; 401. Mounting sleeve; 402. Bearing; 403. Double-layer threaded positioning sleeve; 404. Positioning ring; 404. Limiting ring; 404. Pressing plate; 405. Sealing plug; 406. Connecting ring; 5. Drive gear; 6. Central cylinder; 7. Cable conduit; 8. Embedded pipe section; 801. Bend pipe section; 802. Insert pipe section; 802. Cross-connect pipe section; 802. Positioning pipe section; 802.3. Internal gear ring; 9. Detection sensor; 10. Bushing; 11. Elastic sealing gasket; 12. Pressing screw; 13. Flange; 14. Wire core; 15. Transmission gear; 16. Gear shaft; 17. Motor; 18. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] Please see Figure 1 as well as Figures 5-6This invention provides a technical solution: an underwater environment-based information recording and surveying device, comprising a device body 1 capable of underwater movement, and a plurality of detection sensors 10 mounted on the front end of the device body 1. The detection sensors 10 include several or all of the following: optical imaging sensors, acoustic sensors, water quality sensors, water temperature sensors, and depth sensors. Each type of sensor has three sensors arranged in a straight line. All types of sensors are arranged in a circular array and mounted on a front end plate 2 at the front end of the device body 1. Specifically, in this embodiment, each type of sensor needs to be mounted on a mounting base 4 on a mounting arm 3. Three mounting bases 4 can be provided along the length of the mounting arm 3, each used for detachably mounting the sensor. In specific manufacturing, each mounting base 4 includes a driven gear 401 coaxial with the sensor. Two adjacent driven gears 401 on each mounting arm 3 mesh. At the two ends of the mounting arm 3 are a first gear and a third gear, respectively. The first gear meshes with a driving gear 6 rotatably mounted at the center of the front end plate 2, and the third gear meshes with an internal gear ring 9 fixed on the front end plate 2. The internal gear ring 9 is coaxial with the driving gear 6, which is located at the center of the internal gear ring 9 and meshes externally with a transmission gear 16 driven by a motor 18. The transmission gear 16 is mounted on the front end plate 2 so that, during rotation, all sensors rotate around the center of the front end plate 2 for comprehensive detection, scanning and detecting various underwater environmental information in the forward direction. Furthermore, by adjusting and controlling the speed and rotation of the motor 18, targeted detection of environmental information in a specific direction can be achieved. In addition, three identical sensors can be mounted on each mounting arm 3, not only expanding the detection area but also ensuring detection accuracy. The detection information from the three sensors can be compared and fused. To achieve the aforementioned technical effects, more specifically, each of the mounting arms 3, located away from the internal gear ring 9, is integrally connected to a collar, meaning the mounting arm 3 and the collar are integrally formed. The collar is coaxially and rotatably mounted on a central cylinder near its front end. The central cylinder is coaxially and fixed to the center of the front end plate 2, with its rear end located inside the device body 1. The drive gear 6 is coaxially and rotatably mounted on the end of the central cylinder that protrudes from the front end plate 2, and is located at the front end of the collar. Figures 5-6 The left end of the middle.

[0035] In this embodiment, as Figure 1 As shown, the signal lines of the sensors on each mounting arm 3 are installed inside a cable conduit 8, with a portion of the cable conduit 8 embedded within the mounting arm 3, as shown. Figure 7 The pre-embedded pipe section 801 shown is laid and installed along the length of the mounting arm 3, as follows. Figures 2-4The end of the cable conduit 8 furthest from the sensor extends radially into the shaft hole of the central cylinder, then bends at a 90-degree angle and extends axially towards the rear end of the central cylinder to enter the interior of the device body 1. To ensure proper protection of the sensor signal lines during rotation of the mounting arm 3, preventing entanglement and wear, a bushing 11 is coaxially mounted on the portion of the cable conduit 8 inside the front port of the central cylinder. The outer wall of the bushing 11 rolls against the inner wall of the central cylinder, allowing the mounting arm 3 and the connecting ring 5 to rotate freely. In this embodiment, as... Figure 5 The motor 18 is installed in the front end of the device body 1. The main shaft of the motor 18 is coaxially fixed with the gear shaft 17 of the transmission gear 16. The gear shaft 17 passes through the front end plate 2 and extends into the device body 1.

[0036] like Figure 1 and Figure 5 As shown, in this embodiment, the front end plate 2 is a regular hexagonal plate structure, the internal gear ring 9 is fixed at the edge of the front end plate 2, the transmission gear 16 is located in front between two adjacent mounting arms 3, and the end face of the internal gear ring 9 can also be detachably fitted with a transparent cover plate. The cover plate completely seals the inside of the internal gear ring 9, or when some sensors are designed to be long enough, they can extend out of the cover plate in a sealed fit for detection.

[0037] In this embodiment, as Figure 7 As shown, a bearing 403 is rotatably mounted on the mounting arm 3. The axial direction of the bearing 403 is perpendicular to the length direction of the mounting arm 3, so as... Figure 7 The structure shown is installed such that the cylindrical mounting part at the bottom of the driven gear 401 is coaxially fixed in the inner ring of the bearing 403 to achieve the installation connection between the driven gear 401 and the bearing 403, while the outer ring of the bearing 403 is fixedly installed in the corresponding structure on the surface of the mounting arm 3. This installation method allows the inner ring of the bearing 403 to rotate while the outer ring remains fixed, thus enabling the driven gear 401 to be installed with free rotation.

[0038] In this embodiment, as Figure 7 As shown, on the side of the mounting arm 3 away from the bearing 403, a double-threaded positioning sleeve 404 is rotatably mounted coaxially with the bearing 403. Both the outer and inner sides of the double-threaded positioning sleeve 404 have threads. Specifically, when the double-threaded positioning sleeve 404 is screwed into the mounting arm 3 using its external thread, and its end positioning ring 40401 contacts the surface of the mounting arm 3, the double-threaded positioning sleeve 404 is fully screwed in, reaching the set installation position. The inner wall of the double-threaded positioning sleeve 404 has an integral limiting ring 40402 coaxially. The limiting ring 40402 is mainly used for the positioning and installation of the mounting sleeve 402, as mentioned later. Specifically, as... Figure 7The mounting base 4 also includes a mounting sleeve 402 that is coaxial with and interference-fitted with the driven gear 401. That is, the driven gear 401 is tightly fitted onto the outside of the mounting sleeve 402. If necessary, a clamping screw 13 can be screwed in to reinforce the connection between the two. At the bottom end of the mounting sleeve 402, there is a positioning ring 40401, which mainly fits and positions itself against the aforementioned limiting ring 40402. Moreover, in the bottom port of the double-threaded positioning sleeve 404, a clamping plate 405 with a shaft hole is screwed upwards with a threaded fit. A sealing plug 406 is fixedly fixed with a protrusion at the center of the end of the clamping plate 405. The sealing plug 406 also has a shaft hole, but the hole diameter is smaller. During installation, the double-threaded positioning sleeve 404 is screwed into the mounting arm 3 with the upper side facing up until it is fully inserted. When the clamping plate 405 is also screwed into the double-threaded positioning sleeve 404 with the upper side facing up until it is fully inserted, the mounting sleeve 402 is installed and fixed in place. The outer wall of the sealing plug 406 is pressed against the inner wall of the mounting sleeve 402 to achieve a sealing contact. The shaft holes of the clamping plate 405 and the sealing plug 406 are used for the cable tube 8 to pass through in a pressing contact to achieve a seal on the cable joint inside the mounting sleeve 402.

[0039] In this embodiment, as Figure 7 As shown, the cable conduit 8 includes a bend section 802 at one end. The bend section 802 has three sections: a plug section 80201 coaxially disposed within the mounting sleeve 402; a crossover section 80202 radially arranged outside the clamping plate 405; and a positioning section 80203 parallel to the plug section 80201. Specifically, the free end of the plug section 80201 exposes the core 15 or connecting end of the signal line, allowing it to be screwed into the double-threaded positioning sleeve 404 to contact the signal line connecting end at the bottom of the sensor, thereby achieving sensor connection. Furthermore, the outer side of the positioning section 80203 has a spline structure so that it can be inserted into the mounting arm 3 without rotation, ensuring that the plug section 80201 and the mounting sleeve 402 are coaxially mounted. As for the connector section 80201, its port is required to expose the end of the signal wire core 15 so that it can connect with the connection end of the signal wire in the other cable conduit 8 embedded in the mounting arm 3, thereby connecting the sensor's signal wires. In practice, to ensure the sealing effect and the contact connection of the corresponding connection end of the signal wire core 15, elastic sealing gaskets 12 are provided between the port of the sensor and the double-threaded positioning sleeve 404, and between the positioning pipe section 80203 and the outer fixed flange 14 and the mounting arm 3.

[0040] In the above description of the present invention, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An underwater environment-based information recording and surveying device, comprising a device body (1) capable of moving underwater, and a plurality of detection sensors (10) installed at the front end of the device body (1), wherein the detection sensors (10) include optical imaging sensors, acoustic sensors, water quality sensors, water temperature sensors, and depth sensors, characterized in that: Multiple sensors of each type are arranged in a straight line. After all types of sensors are arranged, they are mounted in a circular array on the front end plate (2) at the front end of the device body (1). Each sensor is mounted on a corresponding mounting base (4) on a mounting arm (3). Multiple mounting bases (4) are provided along the length of the mounting arm (3). Each mounting base (4) includes a driven gear (401) coaxial with the sensor. Two adjacent driven gears (401) on each mounting arm (3) mesh. The first gear meshes with the driving gear (6) rotatably mounted in the center of the front end plate (2). The third gear meshes with the internal gear ring (9) fixed on the front end plate (2). The internal gear ring (9) is coaxial with the driving gear (6). The driving gear (6) is located in the center of the internal gear ring (9) and meshes externally with a transmission gear (16) driven by a motor (18). The transmission gear (16) is mounted on the front end plate (2) so that all sensors rotate around the center of the front end plate (2) when rotating.

2. The underwater environment-based information recording and surveying device according to claim 1, characterized in that: The end of the mounting arm (3) facing away from the internal gear ring (9) is integrally connected to a collar. The collar is coaxially rotatably mounted on a central cylinder near the front end. The central cylinder is coaxially fixed in the center of the front end plate (2), and its rear end is located inside the device body (1). The drive gear (6) is coaxially rotatably mounted on the end of the central cylinder that protrudes from the front end plate (2) and is located at the front end of the collar.

3. The underwater environment-based information recording and surveying device according to claim 2, characterized in that: The signal line of the sensor on each mounting arm (3) is installed in a cable tube (8). A portion of the cable tube (8) is built into the mounting arm (3) and installed along the length of the mounting arm (3). The end of the cable tube (8) away from the sensor extends radially into the shaft hole of the central cylinder, bends at 90 degrees, and extends outward along the axial direction of the central cylinder to enter the interior of the device body (1).

4. The underwater environment-based information recording and surveying device according to claim 3, characterized in that: The portion of the cable conduit (8) inside the front port of the central cylinder is coaxially fitted with a bushing (11), the outer wall of which is in rolling contact with the inner wall of the central cylinder.

5. The underwater environment-based information recording and surveying device according to claim 3, characterized in that: The motor (18) is installed in the device body (1) at the front end. The main shaft of the motor (18) is coaxially fixed with the gear shaft (17) of the transmission gear (16). The gear shaft (17) passes through the front end plate (2) and extends into the device body (1).

6. The underwater environment-based information recording and surveying device according to claim 5, characterized in that: The front end plate (2) is a regular hexagonal plate structure. The internal gear ring (9) is fixed at the edge of the front end plate (2). The transmission gear (16) is located in front of the two adjacent mounting arms (3). The end face of the internal gear ring (9) can also be detachably fitted with a transparent cover plate, which completely seals the inside of the internal gear ring (9).

7. The underwater environment-based information recording and surveying device according to claim 3, characterized in that: A bearing (403) is rotatably mounted on the mounting arm (3). The bearing (403) is axially perpendicular to the length direction of the mounting arm (3). The mounting part at the bottom of the driven gear (401) is fixed in the inner ring of the bearing (403). The outer ring of the bearing (403) is fixedly mounted on the surface of the mounting arm (3) so that the driven gear (401) can be mounted freely.

8. The underwater environment-based information recording and surveying device according to claim 7, characterized in that: The mounting arm (3) is located away from the bearing (403) and is rotatably mounted with a double-threaded positioning sleeve (404) on the same side as the bearing (403). The double-threaded positioning sleeve (404) is screwed into the mounting arm (3) with a threaded fit, and when the positioning ring (40401) at its end contacts the surface of the mounting arm (3), it is screwed in to the bottom. The inner side wall of the double-threaded positioning sleeve (404) has an integral limiting ring (40402) on the same side. The mounting base (4) further includes a mounting sleeve (402) that is coaxially interference-fitted with the driven gear (401). The mounting sleeve (402) has a positioning ring (40401) at its bottom end. The bottom port of the double-threaded positioning sleeve (404) is threaded with a pressure plate (405) having a shaft hole. The end of the pressure plate (405) is fixed with a sealing plug (406) having a shaft hole. When the double-threaded positioning sleeve (404) is screwed to the bottom and the pressure plate (405) is also screwed to the bottom inside the double-threaded positioning sleeve (404), the mounting sleeve (402) is installed and fixed in place, and the sealing plug (406) is pressed and sealed against the inner wall of the mounting sleeve (402). The shaft holes of the pressure plate (405) and the sealing plug (406) allow the cable tube (8) to pass through in a pressing contact.

9. The underwater environment-based information recording and surveying device according to claim 8, characterized in that: The cable conduit (8) includes a bend section (802) at one end, the bend section (802) including a plug section (80201) coaxially disposed within the mounting sleeve (402), a crossover section (80202) radially arranged outside the clamping plate (405) along the clamping plate (405), and a positioning section (80203) parallel to the plug section (80201), wherein the free end of the plug section (80201) exposes the core (15) of the signal line. The signal line connection end of the sensor bottom is screwed into the double-threaded positioning sleeve (404) tube in a threaded fit. The outer side of the positioning tube section (80203) has a spline structure so that it can be inserted into the mounting arm (3) and cannot be rotated, and so that the insertion tube section (80201) and the mounting sleeve (402) are coaxially installed. The port of the insertion tube section (80201) allows the end of the core (15) of the signal line to be exposed so as to connect and contact the connection end of the signal line in the other cable tubes (8) buried in the mounting arm (3).

10. The underwater environment-based information recording and surveying device according to claim 1, characterized in that: Elastic sealing gaskets (12) are provided between the sensor and the port of the double-layer threaded positioning sleeve (404), and between the positioning tube section (80203) and the flange (14) fixed on the outside and the mounting arm (3).

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