shore-based mobile anti-frogman sonar monitoring and alarm device
By using a shore-based mobile anti-frogman sonar monitoring and alarm device, a rigid sonar guide rod and an electric contact slider are used to maintain circuit stability. Combined with motor drive and gear transmission to adjust the sonar position, the problem of easy cable damage and shortened lifespan when the position changes in traditional systems is solved, and flexible monitoring and stable circuit connection are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUOKE CHENGFENG DEFENSE TECH (ZHEJIANG) CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-30
AI Technical Summary
The cables of traditional underwater anti-frogman sonar systems are easily damaged by the harsh underwater environment, and their lifespan is shortened when the location is changed, affecting the stability of monitoring.
A shore-based, mobile anti-frogman sonar monitoring and alarm device is adopted. It uses a rigid sonar guide rod and an electric contact slider to maintain a stable circuit connection. Combined with a motor-driven screw and gear transmission, the sonar position is adjusted to achieve flexible monitoring.
It improves the flexibility of sonar monitoring coverage and the stability of circuit connections, avoids the impact of cable damage, and enhances monitoring capabilities in harsh environments.
Smart Images

Figure CN224436584U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shore-based safety monitoring technology, and in particular to a shore-based mobile anti-frogman sonar monitoring and alarm device. Background Technology
[0002] In modern naval warfare, special sabotage operations conducted by frogman units have become a widespread tactic. Due to the stealth and high destructiveness of frogman attacks, they pose a significant threat to shore-based ships and coastal facilities. Therefore, the development of anti-frogman sonar systems has become a key military project for many countries. Traditional underwater anti-frogman sonar relies on cables for circuit connections. The harsh underwater environment easily damages these cables, affecting sonar monitoring. Furthermore, in anti-frogman sonar monitoring systems that require raising, lowering, or changing sonar positions, the cables must be moved accordingly, which can shorten their lifespan. Utility Model Content
[0003] To address the aforementioned problems, this invention proposes a shore-based, mobile anti-frogman sonar monitoring and alarm device, which can more accurately solve the problems described above.
[0004] This utility model is achieved through the following technical solution:
[0005] This utility model proposes a shore-based, mobile anti-frogman sonar monitoring and alarm device, including a sonar valence tube base and a sonar. The sonar is connected to a rigid sonar guide rod, and a connector is connected to the end of the rigid sonar guide rod. The connector includes an electric contact slider, which is slidably connected to the inner cavity of the sonar valence tube base. A pair of positive and negative conductive strips are arranged on both sides of the inner cavity of the sonar valence tube base. The electric contact slider is provided with sliding contact pieces that are electrically in contact with the pair of positive and negative conductive strips, and the sliding contact pieces are electrically connected to the sonar through internal wires of the rigid sonar guide rod. An adapter is integrally formed on the outer side of the middle part of the valence-raising cylinder base, and the adapter is rotatably connected to the adapter base. The adapter is provided with a pair of rotating contacts. The inner ends of the two rotating contacts are electrically connected to a pair of positive and negative conductive strips inside the sonar valence-raising cylinder base through circuit branches. The adapter base is provided with two positive and negative conductive rings at the adapter position. The two positive and negative conductive rings are respectively in rotational electrical contact with the pair of rotating contacts on the adapter. Both positive and negative conductive rings are connected to lead-out circuits, which are guided and arranged in the adapter base.
[0006] Furthermore, a screw is rotatably connected to the inner cavity of the sonar valence riser base, and an inner thread seat is provided on one side of the electric contact slider, and the inner thread seat is engaged with the screw in a transmission manner. A first motor is provided on the top of the sonar valence riser base, and the output shaft end of the first motor is connected in a transmission manner to one end of the screw.
[0007] Furthermore, the sliding direction of the electric contact slider in the inner cavity of the sonar riser is consistent with the axial direction of the rigid sonar guide rod, and the axial direction of the screw is consistent with the sliding direction of the electric contact slider.
[0008] Furthermore, the outer wall of the adapter is integrally formed with an external gear, the outer wall of the adapter base is integrally formed with a motor base, a second motor is provided on the motor base, the output shaft end of the second motor is provided with a drive gear, and the drive gear is engaged with the external gear.
[0009] Furthermore, the sonar riser holder is provided with 2-3 water-sealing rings at one end of the rigid sonar guide rod, and the water-sealing rings are in close contact with the outer wall of the rigid sonar guide rod.
[0010] The beneficial effects of this utility model are:
[0011] 1. This utility model uses a first motor to drive the screw, which engages with the internal thread seat in the connector, thereby controlling the sliding of the connector inside the sonar lifting cylinder seat. This controls the extension and retraction of the rigid sonar guide rod, adjusting the lifting height of the sonar. By controlling the second motor, the active gear meshes with the external gear, thereby adjusting the rotation angle of the sonar lifting cylinder seat. Combined with the extension and retraction of the rigid sonar guide rod, the detection point of the sonar can be adjusted and changed, allowing the monitoring position of the sonar to be flexibly changed, greatly improving the monitoring coverage.
[0012] 2. This utility model uses a pair of sliding contacts on the electric contact slider to make electrical contact with a pair of positive and negative conductive strips inside the sonar valence riser holder. When the connector slides inside the sonar valence riser holder, it maintains a stable circuit connection. A pair of rotating contacts on the adapter make rotational electrical contact with two positive and negative conductive rings inside the adapter base. When the sonar valence riser holder rotates, it maintains a stable circuit connection. Furthermore, this utility model incorporates built-in protection for the circuit, effectively ensuring the stability of the circuit connection. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a half-sectional view of the three-dimensional structure of this utility model;
[0015] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0016] Figure 4 This is a three-dimensional structural diagram of the sonar in this utility model;
[0017] Figure 5 This is a front sectional view of the structure of this utility model;
[0018] Figure 6 for Figure 5 Enlarged view of point B in the middle;
[0019] Figure 7 This is a top sectional view of the structure of this utility model.
[0020] In the diagram: 1. Sonar riser base; 101. Positive and negative conductive strips; 102. Screw; 1021. First motor; 103. Adapter; 1031. External gear; 1032. Rotating contact piece; 1033. Circuit branch; 104. Adapter base; 1041. Motor base; 1042. Second motor; 1043. Drive gear; 1044. Positive and negative conductive rings; 1045. Lead-out circuit; 105. Water seal ring; 2. Sonar; 201. Rigid sonar guide rod; 202. Connector; 2021. Electrical contact slider; 2022. Sliding contact piece; 2023. Internal thread seat. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example 1
[0023] A shore-based, mobile anti-frogman sonar monitoring and alarm device includes a sonar valence tube base 1 and a sonar 2. The sonar 2 is connected to a rigid sonar guide rod 201. The end of the rigid sonar guide rod 201 is connected to a connector 202. The connector 202 includes an electric contact slider 2021, which is slidably connected to the inner cavity of the sonar valence tube base 1. A screw 102 is rotatably connected to the inner cavity of the sonar valence tube base 1. One side of the sonar valence-raising cylinder seat 1 is provided with an inner thread seat 2023, which is engaged with the screw 102. The top of the sonar valence-raising cylinder seat 1 is provided with a first motor 1021, and the output shaft end of the first motor 1021 is connected to one end of the screw 102. The sliding direction of the electric contact slider 2021 in the inner cavity of the sonar valence-raising cylinder seat 1 is consistent with the axial direction of the rigid sonar guide rod 201, and the axial direction of the screw 102 is consistent with the sliding direction of the electric contact slider 2021. By driving the screw 102 through the first motor 1021, the screw 102 is engaged with the inner thread seat 2023 provided in the connector 202, thereby controlling the sliding of the connector 202 inside the sonar valence-raising cylinder seat 1, that is, controlling the extension and retraction of the rigid sonar guide rod 201, and adjusting the lifting height of the sonar 2.
[0024] An adapter 103 is integrally formed on one side of the middle outer portion of the sonar valence tube holder 1, and the adapter 103 is rotatably connected to an adapter base 104. The adapter base 104 is used to fix it on a fixed bracket on the base bank. An external gear 1031 is integrally formed on the outer wall of the middle portion of the adapter 103, and a motor base 1041 is integrally formed on the outer wall of the adapter base 104. A second motor 1042 is provided on the motor base 1041, and a drive gear 1043 is provided at the output shaft end of the second motor 1042. The drive gear 1043 is engaged with the external gear 1031. By controlling the second motor 1042 to work, the drive gear 1043 is driven to engage with the external gear 1031, thereby adjusting the rotation angle of the sonar valence tube holder 1. In conjunction with the extension and retraction of the rigid sonar guide rod 201, the detection point of the sonar 2 is adjusted and changed.
[0025] The technical solutions described in the above embodiments of this application have at least the following technical effects or advantages: This utility model drives the screw 102 through the first motor 1021, so that the screw 102 and the inner thread seat 2023 provided in the connector 202 are engaged in transmission, thereby controlling the sliding of the connector 202 inside the sonar riser holder 1, that is, controlling the extension and retraction of the rigid sonar guide rod 201, adjusting the lifting height of the sonar 2. By controlling the second motor 1042 to work, the active gear 1043 is driven to mesh with the external gear 1031, thereby adjusting the rotation angle of the sonar riser holder 1. In conjunction with the extension and retraction of the rigid sonar guide rod 201, the detection point of the sonar 2 is adjusted and changed, so that the monitoring position of the sonar 2 can be flexibly changed, greatly improving the monitoring coverage.
[0026] Example 2
[0027] A pair of positive and negative conductive strips 101 are arranged on both sides of the inner cavity of the sonar valence elevator 1. The electric contact slider 2021 is provided with sliding contact pieces 2022 that are electrically in contact with the pair of positive and negative conductive strips 101 respectively. The sliding contact pieces 2022 are electrically connected to the sonar 2 via internal wires of the rigid sonar guide rod 201. By having the pair of sliding contact pieces 2022 on the electric contact slider 2021 make corresponding electrical contact with the pair of positive and negative conductive strips 101 inside the sonar valence elevator 1, a stable circuit connection is maintained when the connector 202 slides within the inner cavity of the sonar valence elevator 1.
[0028] The adapter 103 is equipped with a pair of rotating contacts 1032. The inner ends of the two rotating contacts 1032 are electrically connected to a pair of positive and negative conductive strips 101 inside the sonar valence elevator 1 via circuit branches 1033. The adapter base 104, located at the adapter position of the adapter 103, is equipped with two positive and negative conductive rings 1044. Both positive and negative conductive rings 1044 are connected to lead-out circuits 1045, which are guided and arranged in the adapter base 104. The lead-out circuits 1045 are used to connect to the power supply circuit of the base. Through the rotational electrical contact between the pair of rotating contacts 1032 on the adapter 103 and the two positive and negative conductive rings 1044 inside the adapter base 104, the circuit is kept stably connected when the sonar valence elevator 1 rotates.
[0029] The sonar valence riser 1 is provided with 2-3 water sealing rings 105 at one end through which the rigid sonar guide rod 201 passes. The water sealing rings 105 are in close contact with the outer wall of the rigid sonar guide rod 201 to prevent external water from entering the sonar valence riser 1 and effectively protect the internal circuit of the sonar valence riser 1.
[0030] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: The present invention uses a pair of sliding contact pieces 2022 on the electric contact slider 2021 to make corresponding electrical contact with a pair of positive and negative conductive strips 101 inside the sonar valence-raising cylinder seat 1. When the connector 202 slides within the sonar valence-raising cylinder seat 1, a stable circuit connection is maintained. A pair of rotating contact pieces 1032 on the adapter 103 cooperate with two positive and negative conductive rings 1044 inside the adapter base 104 to make rotational electrical contact. When the sonar valence-raising cylinder seat 1 rotates, a stable circuit connection is maintained. Furthermore, the present invention incorporates built-in protection for the circuit, effectively ensuring the stability of the circuit connection.
[0031] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.
Claims
1. A shore-based, mobile anti-frogman sonar monitoring and alarm device, comprising a sonar riser (1) and a sonar (2), characterized in that, The sonar (2) is connected to a rigid sonar guide rod (201), and a connector (202) is connected to the end of the rigid sonar guide rod (201). The connector (202) includes an electric contact slider (2021), and the electric contact slider (2021) is slidably connected to the inner cavity of the sonar valence-raising cylinder seat (1). A pair of positive and negative conductive strips (101) are arranged on both sides of the inner cavity of the sonar valence-raising cylinder seat (1). The electric contact slider (2021) is provided with sliding contact pieces (2022) that are electrically in contact with the pair of positive and negative conductive strips (101) respectively. The sliding contact pieces (2022) are electrically connected to the sonar (2) through the internal wires of the rigid sonar guide rod (201). An adapter (103) is integrally formed on one side of the middle of the sonar valence-raising cylinder seat (1), and the adapter ( 103) Rotatably connected to the adapter base (104), the adapter (103) is provided with a pair of rotating contact pieces (1032), the inner ends of the two rotating contact pieces (1032) are electrically connected to a pair of positive and negative conductive strips (101) inside the sonar valence tube seat (1) through circuit branch lines (1033), the adapter base (104) is provided with two positive and negative conductive rings (1044) at the adapter position of the adapter (103), and the two positive and negative conductive rings (1044) respectively cooperate with the pair of rotating contact pieces (1032) provided on the adapter (103) to rotate and make electrical contact, and both positive and negative conductive rings (1044) are connected to lead-out circuits (1045), and the lead-out circuits (1045) are guided and arranged in the adapter base (104).
2. The shore-based mobile anti-frogman sonar monitoring and alarm device according to claim 1, characterized in that, The inner cavity of the sonar valence riser (1) is rotatably connected to a screw (102). An inner thread seat (2023) is provided on one side of the electric contact slider (2021), and the inner thread seat (2023) is engaged with the screw (102) in a transmission. The top of the sonar valence riser (1) is provided with a first motor (1021), and the output shaft end of the first motor (1021) is connected to one end of the screw (102) in a transmission.
3. The shore-based mobile anti-frogman sonar monitoring and alarm device according to claim 1 or 2, characterized in that, The sliding direction of the electric contact slider (2021) in the inner cavity of the sonar riser holder (1) is consistent with the axial direction of the rigid sonar guide rod (201), and the axial direction of the screw (102) is consistent with the sliding direction of the electric contact slider (2021).
4. The shore-based mobile anti-frogman sonar monitoring and alarm device according to claim 1, characterized in that, The adapter (103) has an external gear (1031) integrally formed on the outer wall of its middle part, and the adapter base (104) has an electric motor base (1041) integrally formed on its outer wall. The electric motor base (1041) is provided with a second electric motor (1042), and the output shaft end of the second electric motor (1042) is provided with a drive gear (1043), and the drive gear (1043) is engaged with the external gear (1031).
5. The shore-based mobile anti-frogman sonar monitoring and alarm device according to claim 1, characterized in that, The sonar riser base (1) is provided with 2-3 water sealing rings (105) at one end through which the rigid sonar guide rod (201) passes, and the water sealing rings (105) are in close contact with the outer wall of the rigid sonar guide rod (201).