Depth sensing device

Abstract

The utility model relates to a depth sensing device, comprising a housing and a depth sensor, two ends of the housing are respectively provided with a front cover and a multi-core connector, one end of the front cover in the housing is provided with an installation groove, the bottom of the installation groove is provided with a transmission hole, the depth sensor is fixed in the installation groove, and the inner wall of the housing is provided with a positioning flange. A connecting shell is arranged on the outer side of the multi-core connector and presses the multi-core connector on the positioning flange; the multi-core connector comprises a connector body and a plurality of metal communicating pipes, one end of each metal communicating pipe is located in the working cavity, the other end of each metal communicating pipe is connected with a core wire with the surface coated with an insulating layer, one end of each core wire is connected with the corresponding metal communicating pipe, the other end of each core wire extends into the protective pipe, and the outer end of the protective pipe penetrates through the connecting shell and is connected with external equipment; sealing rings are arranged between the front cover and the inner wall of the shell, between the sensor and the inner wall of the mounting groove and between the connector body and the inner wall of the shell, and the depth sensing device is small and compact in structure and good in waterproof performance.

Description

Technical Field

[0001] This utility model relates to a sensing device, and more particularly to a depth sensing device. Background Technology

[0002] Depth sensors are sensing devices used to detect the depth of liquids and are widely used in industrial production and detection. Existing depth sensor-based devices suffer from large overall size and limited water resistance due to their redundant hardware design and heavy casing. While this is not a major issue in low-water-depth applications, their large size increases the difficulty of assembling and installing underwater sonar towed systems in deep-sea applications such as submersible navigation. Furthermore, deep-sea applications place higher demands on the device's waterproofing performance. Therefore, there is a need to design a depth sensing device with a smaller overall structure and higher waterproofing performance suitable for deep-sea applications. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a depth sensing device with a small and compact structure and good waterproof performance.

[0004] The depth sensing device of this utility model includes a housing and a depth sensor. The housing is a tubular structure with openings at both ends and a hollow interior. A front cover and a multi-core connector are respectively provided at both ends of the housing. One end of the front cover is fixedly connected to the opening at one end of the housing by a thread. The other end of the front cover is provided with an external thread for connecting to an external device. A mounting groove is provided at one end of the front cover inside the housing. A transmission hole is provided at the bottom of the mounting groove, with one end communicating with a connecting groove and the other end communicating with the outside. The depth sensor is fixed in the mounting groove.

[0005] The multi-core connector is located at the opening at the other end of the housing. The inner wall of the housing is provided with a positioning flange. The multi-core connector is located on the positioning flange. A connecting shell is also provided on the outside of the multi-core connector and is threaded to the housing. The end of the connecting shell near the multi-core connector is threaded to the inside of the housing and presses the multi-core connector onto the positioning flange.

[0006] The multi-core connector includes a connector body and several metal connecting tubes that penetrate the connector body. The inner wall of the housing, the front cover, and the connector body surround and form a sealed working cavity. One end of the metal connecting tube is located in the working cavity, and the other end is connected to a core wire with an insulating layer on its surface. One end of the core wire is connected to the metal connecting tube, and the other end extends into the protective tube. The outer end of the protective tube passes through the connector shell and is connected to an external device.

[0007] Sealing rings are provided between the front cover and the inner wall of the housing, between the sensor and the inner wall of the mounting groove, and between the connector body and the inner wall of the housing.

[0008] The advantages of this depth sensing device lie in its tubular housing, open at both ends. One end of the front cover has a mounting groove for installing the depth sensor, with the bottom of the groove communicating with the outside via a transmission hole. The other end of the front cover has external threads for connecting to external devices. A multi-core connector is fixed to a positioning flange at the other end of the housing via a connecting shell. The depth sensor inside the mounting groove communicates and receives power from the outside via the core wires of the multi-core connector. Sealing rings are provided between the front cover and the inner wall of the housing, between the sensor and the inner wall of the mounting groove, and between the connector body and the inner wall of the housing. Compared to existing depth sensing devices, this structure, with its multi-core connector and optimized software algorithm, significantly reduces internal hardware components, resulting in a more compact overall structure. The threads on the outer circumference of the front cover facilitate connection to external devices. The multiple sealing rings and protective tubes provide excellent sealing performance. Combined with the housing made of high-pressure resistant material (preferably stainless steel in this embodiment), it is more suitable for deep-sea applications.

[0009] Furthermore, in the depth sensing device of this utility model, a connecting bracket and a circuit board are also provided inside the housing. A mounting base is provided on the connecting bracket, and the circuit board is fixedly connected to the mounting base by screws.

[0010] The connection bracket and its mounting base enable the installation of the circuit board.

[0011] Furthermore, in the depth sensing device of this utility model, the connecting bracket is an annular connecting bracket, which is connected to the opening of the mounting groove by a thread, and the bottom end of the annular connecting bracket presses the depth sensor into the mounting groove.

[0012] The ring-shaped connecting bracket not only enables the installation of the circuit board, but also fixes the depth sensor in the mounting slot, preventing it from becoming loose from the front cover.

[0013] Furthermore, in the depth sensing device of this utility model, a locking cap is provided at one end of the housing. The locking cap is threaded to the end of the connecting housing, and a through hole for the protective tube to enter and exit is provided on the top wall of the locking cap.

[0014] The locking cover provides locking and initial protection for the multi-core connector, preventing external impurities from entering the connector housing and interfering with it.

[0015] Furthermore, in this utility model depth sensing device, the surface of the core wire located on the outside of the connector body is covered with a vulcanized rubber insulating layer.

[0016] The vulcanized rubber insulation layer can effectively insulate the core wire, thereby further improving the applicability of depth sensing devices.

[0017] Furthermore, in the depth sensing device of this utility model, the connector body includes a base with a larger diameter and its circumferential surface in close contact with the inner wall of the housing, and a connecting part fixed to the base with a smaller diameter than the base. A sealing groove is provided on the circumferential surface of the base, and a protective layer is provided on the outer side of the connecting part.

[0018] The sealing groove enables the installation of the sealing ring, while the protective layer provides protection and insulation for some core wires, sheaths, and other components.

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following describes the embodiments of this utility model in detail. Attached Figure Description

[0020] Figure 1 This is a 3D view of the depth sensing device.

[0021] Figure 2 This is a cross-sectional view of the depth sensing device.

[0022] Figure 3 This is a 3D view of the front cover.

[0023] Figure 4 This is a cross-sectional view of the front cover.

[0024] Figure 5 This is a 3D view of the connecting bracket.

[0025] Figure 6 This is the front view of the connecting bracket.

[0026] Figure 7 This is a 3D view of the connecting shell.

[0027] Figure 8 This is a cross-sectional view of the connecting shell.

[0028] Figure 9 It is a 3D diagram of the locking cap.

[0029] Figure 10 A three-dimensional view of the connector body.

[0030] In the figure, 1 is the housing, 2 is the depth sensor, 3 is the front cover, 4 is the multi-core connector, 5 is the mounting groove, 6 is the transmission hole, 7 is the positioning flange, 8 is the connecting shell, 9 is the connector body, 10 is the metal connecting tube, 11 is the working chamber, 12 is the core wire, 13 is the protective tube, 14 is the connecting bracket, 15 is the circuit board, 16 is the mounting base, 17 is the locking cap, 18 is the through hole, 19 is the base, 20 is the connecting part, 21 is the sealing groove, and 22 is the protective layer. Detailed Implementation

[0031] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0032] Example 1: See Figures 1 to 10 The depth sensing device of this embodiment includes a housing 1 and a depth sensor 2. The housing is a tubular structure with openings at both ends and a hollow interior. A front cover 3 and a multi-core connector 4 are respectively provided at both ends of the housing. One end of the front cover is fixedly connected to the opening at one end of the housing by a thread. The other end of the front cover is provided with an external thread for connecting to an external device. A mounting groove 5 is provided at one end of the front cover inside the housing. A transmission hole 6 is provided at the bottom of the mounting groove, with one end communicating with the mounting groove and the other end communicating with the outside. The depth sensor is fixed in the mounting groove.

[0033] The multi-core connector is located at the opening at the other end of the housing. The inner wall of the housing is provided with a positioning flange 7. The multi-core connector is located on the positioning flange. A connecting shell 8 is also provided on the outside of the multi-core connector and is threadedly connected to the housing. The end of the connecting shell close to the multi-core connector is threadedly connected to the inside of the housing and presses the multi-core connector onto the positioning flange.

[0034] The multi-core connector includes a connector body 9 and several metal connecting tubes 10 that penetrate the connector body. The inner wall of the housing, the front cover, and the connector body surround and form a sealed working cavity 11. One end of the metal connecting tube is located in the working cavity, and the other end is connected to a core wire 12 with an insulating layer on its surface. One end of the core wire is connected to the metal connecting tube, and the other end extends into the protective tube 13. The outer end of the protective tube passes through the connector shell and is connected to an external device.

[0035] Sealing rings are provided between the front cover and the inner wall of the housing, between the sensor and the inner wall of the mounting groove, and between the connector body and the inner wall of the housing.

[0036] The advantages of this depth sensing device lie in its tubular housing, open at both ends. One end of the front cover has a mounting groove for installing the depth sensor, with the bottom of the groove communicating with the outside via a transmission hole. The other end of the front cover has external threads for connecting to external devices. A multi-core connector is fixed to a positioning flange at the other end of the housing via a connecting shell. The depth sensor inside the mounting groove communicates and receives power from the outside via the core wires of the multi-core connector. Sealing rings are provided between the front cover and the inner wall of the housing, between the sensor and the inner wall of the mounting groove, and between the connector body and the inner wall of the housing. Compared to existing depth sensing devices, this structure, with its multi-core connector and optimized software algorithms, significantly reduces internal hardware components, resulting in a more compact overall structure. The threads on the outer circumference of the front cover facilitate connection to external devices, and the multiple sealing rings and protective tubes provide excellent sealing performance. Combined with the housing made of high-pressure resistant materials, it is more suitable for deep-sea applications.

[0037] Preferably, the housing is further provided with a connecting bracket 14 and a circuit board 15, the connecting bracket is provided with a mounting base 16, and the circuit board is fixedly connected to the mounting base by screws.

[0038] The connection bracket and its mounting base enable the installation of the circuit board.

[0039] Preferably, the connecting bracket is an annular connecting bracket, which is threaded to the opening of the mounting groove, and the bottom end of the annular connecting bracket presses the depth sensor into the mounting groove.

[0040] The ring-shaped connecting bracket not only enables the installation of the circuit board, but also fixes the depth sensor in the mounting slot, preventing it from becoming loose from the front cover.

[0041] Specifically, the annular connecting bracket is threaded to the opening of the mounting groove, with its end flange contacting the front cover end face, and its other end face contacting the depth sensor end face, pressing it tightly into the mounting groove.

[0042] The mounting base is U-shaped and is located on the end face of the annular connecting bracket. The circuit board is fixed to the mounting base with screws.

[0043] The circuit board is housed within the housing, and is substantially parallel to the housing's central axis. One end of the circuit board near the connecting bracket has a semi-circular notch for mounting an interface to connect the depth sensor. The other end of the circuit board is located at a multi-core connector, whose wires connect to the corresponding interfaces on the circuit board, thereby transmitting the data output from the depth sensor to the host computer.

[0044] During operation, external liquid is input to the depth sensor through the transmission hole. After the depth sensor detects the liquid, it transmits the relevant data to the host computer through the pins on its other end, the relevant interfaces on the circuit board, the circuit module, and the multi-core connector. After receiving the corresponding data, the host computer calculates the depth data through a certain algorithm, thereby realizing the sensing of depth. The aforementioned circuit module includes sampling, shaping, and power supply modules, which are existing technologies and will not be described in detail here.

[0045] Preferably, a locking cap 17 is provided at one end of the housing. The locking cap is threaded to the end of the connecting housing, and a through hole 18 for the protective tube to enter and exit is provided on the top wall of the locking cap.

[0046] The locking cap provides locking and initial protection for the multi-core connector, preventing external impurities from entering the connector housing and interfering with it.

[0047] Preferably, the surface of the core wire located on the outside of the connector body is covered with a vulcanized rubber insulation layer.

[0048] The vulcanized rubber insulation layer can effectively insulate the core wire, thereby further improving the applicability of depth sensing devices.

[0049] Here, "outer side of connector body" refers to the side of connector body away from the working cavity, i.e., the inner cavity of the connector shell.

[0050] Preferably, the connector body includes a base 19 with a larger diameter and its circumferential surface in close contact with the inner wall of the housing, and a connecting portion 20 fixed to the base and with a smaller diameter than the base. The circumferential surface of the base is provided with a sealing groove 21, and the outer side of the connecting portion is provided with a protective layer 22.

[0051] The sealing groove enables the installation of the sealing ring, while the protective layer provides protection and insulation for some core wires, sheaths, and other components.

[0052] Specifically, the entire connecting part, the metal connecting pipe at one end of the connecting part, the core wire between the metal connecting pipe and the protective pipe, and part of the protective pipe are all located within the protective layer. This protective layer can be made of rubber material to achieve insulation and waterproofing functions.

[0053] The above description is merely a preferred embodiment of this utility model, used to assist those skilled in the art in implementing the corresponding technical solutions, and is not intended to limit the scope of protection of this utility model. The scope of protection of this utility model is defined by the appended claims. It should be noted that, for those skilled in the art, several equivalent improvements and modifications can be made based on the technical solutions of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Furthermore, it should be understood that although this specification describes the embodiments as described above, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions of each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A depth sensing device comprising a housing (1) and a depth sensor (2), characterized in that: The housing is a tubular structure with openings at both ends and a hollow interior. A front cover (3) and a multi-core connector (4) are respectively provided at both ends of the housing. One end of the front cover is fixedly connected to the opening at one end of the housing by a thread. The other end of the front cover is provided with an external thread for connecting with external equipment. The end of the front cover located inside the housing is provided with a mounting groove (5). The bottom of the mounting groove is provided with a transmission hole (6) that is connected to the mounting groove at one end and connected to the outside at the other end. The depth sensor is fixed in the mounting groove. The multi-core connector is located at the opening at the other end of the housing. The inner wall of the housing is provided with a positioning flange (7). The multi-core connector is located on the positioning flange. A connecting shell (8) that is threadedly connected to the housing is also provided on the outside of the multi-core connector. The end of the connecting shell close to the multi-core connector is threadedly connected to the housing and presses the multi-core connector onto the positioning flange. The multi-core connector includes a connector body (9) and several metal connecting tubes (10) that penetrate the connector body. The inner wall of the housing, the front cover, and the connector body surround and form a sealed working cavity (11). One end of the metal connecting tube is located in the working cavity, and the other end is connected to a core wire (12) with an insulating layer on its surface. One end of the core wire is connected to the metal connecting tube, and the other end extends into the protective tube (13). The outer end of the protective tube passes through the connector shell and is connected to an external device. Sealing rings are provided between the front cover and the inner wall of the housing, between the sensor and the inner wall of the mounting groove, and between the connector body and the inner wall of the housing.

2. The depth sensing device of claim 1, wherein: The housing is also provided with a connecting bracket (14) and a circuit board (15). The connecting bracket is provided with a mounting base (16), and the circuit board is fixedly connected to the mounting base by screws.

3. The depth sensing device according to claim 2, characterized in that: The connecting bracket is an annular connecting bracket, which is connected to the opening of the mounting groove by a thread, and the bottom end of the annular connecting bracket presses the depth sensor into the mounting groove.

4. The depth sensing device according to claim 1, characterized in that: A locking cap (17) is provided at one end of the housing. The locking cap is connected to the end of the connecting housing by a thread. A through hole (18) for the protective tube to enter and exit is provided on the top wall of the locking cap.

5. The depth sensing device according to claim 1, characterized in that: The core wires located on the outside of the connector body are covered with a vulcanized rubber insulation layer.

6. The depth sensing device according to claim 1, characterized in that: The connector body includes a base (19) with a larger diameter and its circumferential surface in close contact with the inner wall of the housing, and a connecting part (20) fixed to the base and with a smaller diameter than the base. A sealing groove (21) is provided on the circumferential surface of the base, and a protective layer (22) is provided on the outer side of the connecting part.

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