High-precision water pressure switch applied to large depth

Abstract

The application discloses a high-precision water pressure switch applied to a large depth, which comprises a water pressure mechanism, a safety mechanism and a switch assembly; the safety mechanism comprises a base, a control rod, a water pressure spring, a mounting seat, a linkage block, a linkage block guide rod and a push spring, the base is fixedly connected with the mounting seat, the control rod is fixedly connected with the water pressure mechanism, the water pressure spring is sleeved on the control rod, the push spring is sleeved on the linkage block guide rod, the control rod can slide along the mounting seat in an axial direction and drives the linkage block to slide along the linkage block guide rod; the switch assembly comprises a switch push spring, a water pressure mounting seat, a socket, a plug, a guide rod and a follower block, the water pressure mounting seat is fixedly connected with the mounting seat, the socket is fixedly connected with the water pressure mounting seat, the plug is fixedly connected with the follower block, and the follower block can slide along the guide rod in an axial direction; after sinking to a specified depth, the linkage block releases the limitation on the follower block, under the action of the switch push spring, the follower block drives the plug to slide and is connected with the socket. The application can meet the application of a large-depth underwater platform.

Description

Technical Field

[0001] This invention relates to the field of underwater platform technology, and more specifically to a high-precision water pressure switch applicable to deep water. Background Technology

[0002] To ensure personnel safety, underwater platforms are often powered off before entering the water. Water pressure switches are typically installed on the mounting holes of the underwater platform, directly in contact with the water. External pressure activates the switch, thus powering the platform. Currently, deep-sea underwater platforms are a hot research area for many countries, especially for pre-positioned underwater weapons and unmanned underwater platforms. As water depth increases, the pressure at the mounting holes also increases, making traditional large-diameter water pressure switches insufficient for the platform's requirements. Therefore, research into high-precision water pressure switches for deep-sea applications is of great significance. Summary of the Invention

[0003] In view of this, the present invention provides a high-precision water pressure switch applicable to deep-sea platforms, which can meet the application requirements of deep-sea platforms.

[0004] The technical solution adopted in this invention is as follows:

[0005] A high-precision water pressure switch for deep applications includes a water pressure mechanism, a safety mechanism, and a switch assembly.

[0006] The safety mechanism includes a base, a control rod, a water pressure spring, a mounting base, a linkage block, a linkage block guide rod, and a push spring. The base is fixedly connected to the mounting base, the control rod is fixedly connected to the water pressure mechanism, the water pressure spring is mounted on the control rod, and the push spring is mounted on the linkage block guide rod. The control rod can slide along the axial direction of the mounting base and drive the linkage block to slide along the linkage block guide rod.

[0007] The switch assembly includes a switch push spring, a hydraulic mounting base, a socket, a plug, a guide rod, and a follower block. The hydraulic mounting base is fixedly connected to the mounting base, the socket is fixedly connected to the hydraulic mounting base, the plug is fixedly connected to the follower block, and the follower block can slide along the axial direction of the guide rod.

[0008] After sinking to the designated depth, the linkage block releases its limit on the follower block. Under the action of the switch push spring, the follower block drives the plug to slide and connect with the socket.

[0009] Furthermore, the hydraulic mechanism includes a base, a hydraulic rod, and an O-ring; the O-ring is installed at the slot of the hydraulic rod, and the hydraulic rod can slide axially along the base.

[0010] Furthermore, by adjusting the cross-sectional dimensions of the hydraulic strut, it can be adapted to different pressures.

[0011] Furthermore, by adjusting the spring constant of the water pressure spring, it can be adapted to different pressures.

[0012] Furthermore, the control rod is provided with an annular groove for installation in conjunction with the linkage block.

[0013] Furthermore, the follower block is provided with a boss, which is limited by contact with the surface of the linkage block. By adjusting the height of the boss, it can adapt to different pressures.

[0014] Beneficial effects:

[0015] 1. The water pressure mechanism and safety mechanism of this invention adopt a separate structure, which solves the problem of small installation interface of water pressure switch by installing them separately inside and outside. Moreover, the installation hole size of the water pressure mechanism, which is in direct contact with water, is small and can adapt to a large depth. By adjusting the performance parameters of the components, it can adapt to different pressures and improve the accuracy of water pressure switch.

[0016] 2. This invention adopts an O-ring seal and a hydraulic spring structure to replace the original bellows / sheet and rubber diaphragm, solving the problems of bellows / sheet deformation at great depths and short lifespan of rubber diaphragm. It also has a simple structure, reliable system, low cost, and occupies very little space.

[0017] 3. By adjusting the cross-sectional dimensions of the water pressure rod and the elastic coefficient of the water pressure spring, it can adapt to different pressures and depths.

[0018] 4. The present invention can adjust the height of the follower block boss during the assembly process, thereby improving the accuracy of the water pressure switch. Attached Figure Description

[0019] Figure 1 This is a schematic diagram (front view) of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the water pressure mechanism of the present invention;

[0021] Figure 3 This is a schematic diagram of the insurance institution structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the installation of the switch assembly of the present invention;

[0023] Figure 5 This is a front view of the switch assembly of the present invention;

[0024] Figure 6 This is a schematic diagram of the switch assembly structure of the present invention (right view);

[0025] Figure 7 This is a schematic diagram of the installation of the present invention;

[0026] Among them, 1-hydraulic pressure mechanism, 2-safety mechanism, 3-switch assembly, 4-base, 5-hydraulic pressure rod, 6-O-ring, 7-base body, 8-control rod, 9-hydraulic pressure spring, 10-mounting seat, 11-linkage block, 12-linkage block guide rod, 13-push spring, 14-switch push spring, 15-hydraulic pressure mounting seat, 16-socket, 17-plug, 18-guide rod, 19-follower block, 20-underwater platform, 21-follower block boss. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] This invention provides a high-precision water pressure switch applicable to deep water, such as... Figure 1 As shown, it includes a water pressure mechanism 1, a safety mechanism 2, and a switch assembly 3.

[0029] like Figure 2 As shown, the water pressure mechanism 1 includes a base 4, a water pressure rod 5, and an O-ring 6; the O-ring 6 is installed at a slot on the outer circumference of the water pressure rod 5, and the water pressure rod 5 can slide axially along the base 4. By adjusting the cross-sectional dimensions of the water pressure rod 5, it can adapt to different pressures.

[0030] like Figure 3 As shown, the safety mechanism 2 includes a base 7, a control rod 8, a hydraulic spring 9, a mounting base 10, a linkage block 11, a linkage block guide rod 12, and a push spring 13. The base 7 is fixedly connected to the mounting base 10. The control rod 8 is disposed within the base 7 and fixedly connected to the hydraulic rod 5. The hydraulic spring 9 is fitted onto the control rod 8 and is limited by an annular protrusion on the control rod 8. By adjusting the elastic coefficient of the hydraulic spring 9, it can adapt to different pressures. The control rod 8 has an annular slot for mounting with the linkage block 11. The linkage block 11 engages in the annular slot and mates with the linkage guide rod hole. The push spring 13 is fitted onto the linkage block guide rod 12. The control rod 8 can slide axially along the mounting base 10, causing the linkage block 11 to slide along the linkage block guide rod 12, compressing the push spring 13.

[0031] like Figures 4-6 As shown, the switch assembly 3 includes a switch push spring 14, a water pressure mounting base 15, a socket 16, a plug 17, a guide rod 18, and a follower block 19. The water pressure mounting base 15 is fixedly connected to the mounting base 10, the socket 16 is fixedly connected to the water pressure mounting base 15, and the plug 17 is fixedly connected to the follower block 19. The follower block 19 can slide along the axial direction of the guide rod 18. The follower block 19 is provided with a follower block boss 21, which is limited by the contact surface of the linkage block 11. By adjusting the height of the follower block boss 21, it can adapt to different pressures.

[0032] The installation process is as follows: Figure 7 As shown, the water pressure mechanism 1 is installed on the underwater platform 20 via a pressure ring, the safety mechanism 2 is fixedly connected to the water pressure mechanism 1, and the switch assembly is fixedly connected to the safety mechanism 2 via screws.

[0033] The working process is as follows: the deep-sea submersible float carrier is placed in the water, the water pressure rod 5 is driven by the external water pressure to move the control rod 8 axially. After sinking to the specified depth, the stroke of the control rod 8 exceeds the height of the follower block boss 21, the linkage block 11 releases the limit on the follower block 19, the follower block 19 moves under the spring force of the switch push spring 14, drives the plug 17 to slide and connect with the socket 16, and the water pressure switch is turned on.

[0034] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-precision water pressure switch for use at great depths, characterized in that, Includes hydraulic mechanisms, safety mechanisms, and switch components; The safety mechanism includes a base, a control rod, a hydraulic spring, a mounting base, a linkage block, a linkage block guide rod, and a push spring. The base is fixedly connected to the mounting base, the control rod is fixedly connected to the hydraulic mechanism, the hydraulic spring is fitted onto the control rod, and the control rod has an annular slot for mounting with the linkage block. The linkage block engages in the annular slot and mates with the linkage block guide rod hole. The push spring is fitted onto the linkage block guide rod. The control rod can slide axially along the mounting base and drive the linkage block to slide along the linkage block guide rod. The switch assembly includes a switch push spring, a hydraulic mounting base, a socket, a plug, a guide rod, and a follower block. The hydraulic mounting base is fixedly connected to the mounting base, the socket is fixedly connected to the hydraulic mounting base, the plug is fixedly connected to the follower block, and the follower block can slide along the axial direction of the guide rod. The guide rod is fixedly mounted on the hydraulic mounting base. One end of the switch push spring is fixedly connected to the follower block, and the other end is fixedly connected to the mounting base. The follower block is provided with a follower block boss, which is limited by the contact block. After sinking to a specified depth, the contact block releases the limit on the follower block. Under the action of the switch push spring, the follower block drives the plug to slide and connect with the socket.

2. The high-precision water pressure switch for deep water applications as described in claim 1, characterized in that, The hydraulic mechanism includes a base, a hydraulic rod, and an O-ring; the O-ring is installed in the slot of the hydraulic rod, and the hydraulic rod can slide axially along the base.

3. The high-precision water pressure switch for deep water applications as described in claim 2, characterized in that, By adjusting the cross-sectional dimensions of the hydraulic strut, it can adapt to different pressures.

4. The high-precision water pressure switch for deep water applications as described in claim 1, characterized in that, The spring constant of the water pressure spring can be adjusted to adapt to different pressures.

5. The high-precision water pressure switch for deep water applications as described in any one of claims 1-4, characterized in that, The height of the boss can be adjusted to accommodate different pressures.

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