A lifting testing device capable of self-adapting to water depth and a use method

Abstract

The application relates to a lifting test device capable of self-adapting to water depth and a use method, which comprises a base and a top cover; one end of a scissor lifting frame is connected with the base and the top cover through a hinge, and the other end of the scissor lifting frame is connected with a plurality of nylon sliding blocks which are respectively arranged in the base and the top cover in a sliding mode; a water pressure expander is provided with an expander rod which is connected with the nylon sliding blocks; main test equipment and auxiliary test equipment are arranged on the top cover; the nylon sliding blocks are driven to move through the expander rod, and then the scissor lifting frame is driven to lift. The device is arranged on a lifting platform, when the lifting platform is located on the water surface, the device is in a folded state, the test equipment can be replaced and maintained conveniently, when the lifting platform sinks, the device is automatically unfolded, different water depths can be adapted to, when the lifting platform rises, the device is automatically folded, the device does not need to be manually controlled and adjusted in the whole test process, and the test efficiency can be greatly improved.

Description

TECHNICAL FIELD

[0001] The application relates to the underwater launching test technical field, in particular to a lifting test device capable of self-adapting to water depth and a use method. BACKGROUND

[0002] Underwater launching test of a navigation body often needs to be assisted by an underwater lifting platform. The navigation body and launching device are fixed to the underwater lifting platform, the platform is sunk to a set water depth for launching, and the test process is tested through various test equipment of the platform and the navigation body.

[0003] The test process needs to monitor the underwater light measurement and flow field environment of the navigation body, and a fixed test stand is generally arranged on the platform for testing. Since different water depth tests need to be adapted, the fixed test stand is generally high, and the operation and maintenance of the test equipment are not convenient. When the water depth is too large, due to the limited space of the pool, the high support may not be arranged. In addition, when the test water depth is different, the test stand equipment often needs to be adjusted to adapt to the water depth. The ordinary hydraulic or electric lifting device often needs a complex pipe line, and is not convenient to use in the underwater environment.

[0004] Therefore, we propose a lifting test device capable of self-adapting to water depth and a use method. SUMMARY

[0005] The applicant provides a lifting test device capable of self-adapting to water depth and a use method in view of the shortcomings in the prior art. When the lifting platform is located on the water surface, the device is in a folded state, which is convenient for replacing test equipment and maintenance. When the lifting platform is sunk, the water pressure driving device is automatically unfolded to adapt to different water depths. When the lifting platform rises, the device is automatically folded. The device does not need to be manually controlled and adjusted during the whole test process, and the test efficiency can be greatly improved.

[0006] The technical scheme adopted by the application is as follows:

[0007] A lifting test device capable of self-adapting to water depth comprises:

[0008] a base and a top cover;

[0009] a scissor lifting frame, one end of the scissor lifting frame is connected with the base and the top cover through a hinge, and the other end of the scissor lifting frame is connected with a plurality of nylon sliding blocks, and the plurality of nylon sliding blocks are respectively slidably arranged in the base and the top cover;

[0010] a water pressure expander, provided with an expander rod, and the expander rod is connected with the nylon sliding blocks;

[0011] The main test equipment and the auxiliary test equipment are arranged on the top cover, the nylon sliding blocks are driven to move by the expander rod, and then the scissor lifting frame is lifted.

[0012] It is further characterized in that:

[0013] The bottom of the scissors type lifting frame is connected with the base through a hinge at one end, and the top of the scissors type lifting frame is connected with the top cover through a hinge at one end.

[0014] The other end of the bottom of the scissors type lifting frame is connected with a nylon sliding block, and the other end of the top of the scissors type lifting frame is connected with a nylon sliding block.

[0015] The base and the top cover are both provided with a water pressure expander on both sides.

[0016] The water pressure expander comprises an expander cylinder and an expander rod arranged in the expander cylinder.

[0017] The expander cylinder is provided with a limiting piece one and a limiting piece two, one end of the expander rod extends out of the expander cylinder, and the other end of the expander rod is between the limiting piece one and the limiting piece two.

[0018] The expander cylinder is provided with a water permeable hole at one end of the expander rod, and the water permeable hole is in an area outside the limiting piece one and the limiting piece two.

[0019] The expander cylinder is provided with compressed gas between the other end away from the water permeable hole and the expander rod.

[0020] The application also discloses a use method of the lifting test device capable of self-adapting to water depth.

[0021] Step one: the water pressure expander is in a normal pressure state, the compressed gas pushes the expander rod against the limiting piece two, at this time, the scissors type lifting frame is in a contracted state, and the top cover is in the lowest position.

[0022] Step two: the water pressure expander gradually moves downward in water, water enters the expander cylinder through the water permeable hole, the water pressure gradually increases, the water pressure pushes the expander rod to move towards the limiting piece one, the expander rod drives the nylon sliding block to slide, the nylon sliding block drives the scissors type lifting frame to rise, and the scissors type lifting frame drives the top cover to rise; the expander rod against the limiting piece one is the maximum stroke.

[0023] Step three: the water pressure expander gradually moves upward in water, the water in the expander cylinder flows out through the water permeable hole, the water pressure gradually decreases, the compressed gas pushes the expander rod to move towards the limiting piece two, the expander rod drives the scissors type lifting frame to descend through the nylon sliding block, and the scissors type lifting frame drives the top cover to descend.

[0024] The application has the following beneficial effects:

[0025] This invention features a compact and rational structure, and is easy to operate. Through a simple mechanism, it utilizes water pressure changes caused by variations in the working environment to achieve automatic raising and lowering of the testing equipment. It adapts to water depth, eliminating the need for manual adjustment and improving testing efficiency. When the lifting platform is on the water surface, the device is in a folded state, facilitating equipment replacement and maintenance. When the lifting platform descends, the water pressure-driven mechanism automatically unfolds to adapt to different water depths. When the lifting platform rises, the device automatically folds. The entire testing process requires no manual control or adjustment, significantly improving testing efficiency.

[0026] In addition, the present invention also has the following advantages:

[0027] (1) When the hydraulic expansion joint is in a normal pressure environment, the compressed gas pushes the expansion joint rod to move towards the limit two side until the expansion joint rod touches the limit two.

[0028] (2) When the water pressure expansion joint moves downward in the water, the water pressure gradually increases. Under the drive of external pressure, water enters the expansion joint cylinder through the water permeable hole. The water pressure pushes the expansion joint rod to move towards the limit one side. When the water pressure exceeds a certain value, the expansion joint rod reaches the limit one. At this time, the maximum stroke is reached and the top cover reaches the maximum height.

[0029] (3) When the water pressure expansion joint moves upward in the water, the water pressure gradually decreases. The compressed gas pushes the expansion joint rod to move to the limit two side. The expansion joint rod moves out of the expansion joint cylinder. The expansion joint rod drives the nylon slider to move, which in turn drives the scissor lift frame to descend. When the water pressure expansion joint comes out of the water, the expansion joint rod stops at the limit two and the top cover returns to the initial position. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention.

[0031] Figure 2 This is a schematic diagram of the hydraulic expansion joint of the present invention.

[0032] Figure 3 This is a schematic cross-sectional view of the hydraulic expansion joint of the present invention.

[0033] Figure 4 This is a schematic diagram of the three lifting device units of the present invention before they are raised.

[0034] Figure 5 This is a schematic diagram of the three lifting device units of the present invention after being combined and raised.

[0035] The components include: 1. Base; 2. Scissor lift frame; 3. Top cover; 4. Hydraulic expansion joint; 5. Nylon slider; 6. Main testing equipment; 7. Auxiliary testing equipment; 4-1. Expansion joint cylinder; 4-2. Expansion joint rod; 4-3. Compressed gas; 4-4. Water permeable hole; 4-5. Limiting device one; 4-6. Limiting device two. DETAILED DESCRIPTION

[0036] The specific embodiments of the present application will be described below with reference to the accompanying drawings.

[0037] As Figures 1-3 shown, a lifting test device capable of adapting to water depth includes a base 1, a scissor lifting frame 2, a top cover 3, a water pressure expander 4, a nylon sliding block 5, a main test device 6 and an auxiliary test device 7. The scissor lifting frame 2 is arranged between the base 1 and the top cover 3, and the base 1 is arranged on a lifting platform, and the base 1 moves together with the lifting platform.

[0038] One end of the bottom of the scissor lifting frame 2 is connected to the base 1 through a hinge, and the other end of the bottom of the scissor lifting frame 2 is connected to the nylon sliding block 5, and the nylon sliding block 5 at the bottom of the scissor lifting frame 2 can slide along the base 1; one end of the top of the scissor lifting frame 2 is connected to the top cover 3 through a hinge, and the other end of the top of the scissor lifting frame 2 is connected to the nylon sliding block 5, and the nylon sliding block 5 at the top of the scissor lifting frame 2 can slide along the top cover 3; the lifting of the scissor lifting frame 2 is driven by the sliding of the nylon sliding block 5, and the lifting of the top cover 3 is further driven. The water pressure expanders 4 are installed on both sides of the base 1 and the top cover 3, and when the base 1 sinks into the water, the water pressure expanders 4 will drive the nylon sliding block 5 to move due to water pressure, and the top cover 3 will be lifted through the lifting frame 2. Because the water pressure is different at different depths, the stroke of the water pressure expander 4 is different, and the height of the top cover is changed accordingly to adapt to the requirements of different water depths.

[0039] The water pressure expander 4 includes an expander cylinder 4-1, an expander rod 4-2 arranged in the expander cylinder 4-1, a limiting piece one 4-5 and a limiting piece two 4-6 arranged in the expander cylinder 4-1, one end of the expander rod 4-2 extending out of the expander cylinder 4-1, and the other end of the expander rod 4-2 being between the limiting piece one 4-5 and the limiting piece two 4-6. The expander cylinder 4-1 is provided with a water permeable hole 4-4 at one end of the expander rod 4-2. The water permeable hole 4-4 is located in the area outside the limiting piece one 4-5 and the limiting piece two 4-6. A compressed gas 4-3 is arranged between the expander cylinder 4-1 and the expander rod 4-2 away from the water permeable hole 4-4.

[0040] When the water pressure expander 4 is in the normal pressure environment, the compressed gas 4-3 pushes the expander rod 4-2 to move to the side of the limit two 4-6 until the expander rod 4-2 abuts against the limit two 4-6; when the water pressure expander 4 moves downward in the water, the water pressure gradually increases, the water enters the expander cylinder 4-1 from the water-permeable hole 4-4 under the driving of the external pressure, the water pressure pushes the expander rod 4-2 to move to the side of the limit one 4-5, and when the water pressure exceeds a certain value, the expander rod 4-2 abuts against the limit one 4-5, at this time, the maximum stroke is reached, and at this time, the top cover 3 reaches the maximum height; when the water pressure expander 4 moves upward in the water, the water pressure gradually decreases, the compressed gas 4-3 pushes the expander rod 4-2 to move to the side of the limit two 4-6, the expander rod 4-2 moves outward from the expander cylinder 4-1, the expander rod 4-2 drives the nylon sliding block 5 to move, and then drives the scissor lifting frame 2 to descend, and when the water pressure expander 4 is out of the water, the expander rod 4-2 abuts against the limit two 4-6, and the top cover 3 returns to the initial position.

[0041] The top rod 3 is provided with the main test equipment 6 and the auxiliary test equipment 7 on one side, and a plurality of lifting devices can be combined to cover the full water depth test requirement in the specific test.

[0042] Through the combination of the water pressure expander 4 and the scissor lifting frame 2, the structure is simple, the water pressure change caused by the change of the working environment is utilized, the automatic lifting of the test equipment is realized, the water depth is self-adapted, the manual adjustment is avoided, and the test efficiency is improved.

[0043] Embodiment 1

[0044] As shown in Figure 4 , Figure 5 three lifting device units are combined to meet the model out of the cylinder, in-water and near-water surface test, the base 1 of the uppermost lifting device unit is arranged on the top cover 3 of the middle lifting device unit, and the base 1 of the middle lifting device unit is arranged on the top cover 3 of the lowermost lifting device unit.

[0045] The application further discloses a use method of the lifting test device capable of self-adapting to the water depth.

[0046] Step one: the water pressure expander 4 is in the normal pressure state, the compressed gas 4-3 pushes the expander rod 4-2 to abut against the limit two 4-6, at this time, the scissor lifting frame 2 is in the contracted state, and the top cover 3 is in the lowest position;

[0047] Step two: the water pressure expander 4 gradually moves downward in the water, the water enters the expander cylinder 4-1 through the water-permeable hole 4-4, the water pressure gradually increases, the water pressure pushes the expander rod 4-2 to move to the limit one 4-5, the expander rod 4-2 drives the nylon sliding block 5 to slide, the nylon sliding block 5 drives the scissor lifting frame 2 to ascend, and the scissor lifting frame 2 drives the top cover 3 to ascend; when the expander rod 4-2 abuts against the limit one 4-5, the maximum stroke is reached;

[0048] Step three: the water pressure expander 4 gradually moves upward in the water, the water in the expander cylinder 4-1 flows out through the water-permeable hole 4-4, the water pressure gradually decreases, the compressed gas 4-3 pushes the expander rod 4-2 to move to the limiting two 4-6, the expander rod 4-2 drives the scissor lifting frame 2 to descend through the nylon sliding block 5, and the scissor lifting frame 2 drives the top cover 3 to descend.

[0049] The above description is an explanation of the application, not a limitation of the application, the scope of the application is defined in the claims, and any form of modification within the protection scope of the application can be made.

Claims

1. A lifting test device capable of adapting to water depth, characterized in that, include: Base (1) and top cover (3); A scissor lift frame (2) is provided. One end of the scissor lift frame (2) is connected to the base (1) and the top cover (3) via a hinge. The other end of the scissor lift frame (2) is connected to multiple nylon sliders (5). The multiple nylon sliders (5) are slidably disposed in the base (1) and the top cover (3) respectively. The hydraulic expansion joint (4) is equipped with an expansion joint rod (4-2), which is connected to the nylon slider (5); Among them, the top cover (3) is equipped with main testing equipment (6) and auxiliary testing equipment (7). The nylon slider (5) is driven to move through the telescopic rod (4-2), which in turn drives the scissor lift frame (2) to rise and fall. The hydraulic expansion joint (4) includes an expansion joint cylinder (4-1) and an expansion joint rod (4-2) disposed inside the expansion joint cylinder (4-1). The expansion joint cylinder (4-1) is provided with a limiting member one (4-5) and a limiting member two (4-6). One end of the expansion joint rod (4-2) extends out of the expansion joint cylinder (4-1), and the other end of the expansion joint rod (4-2) is located between the limiting member one (4-5) and the limiting member two (4-6). The expansion joint cylinder (4-1) is provided with a water permeable hole (4-4) at the end of the expansion joint rod (4-2) that extends out. The water permeable hole (4-4) is located in the area outside the limiting member one (4-5) and the limiting member two (4-6). Compressed gas (4-3) is disposed between the end of the expansion joint cylinder (4-1) away from the water permeable hole (4-4) and the expansion joint rod (4-2).

2. The adaptive water depth lifting test device as described in claim 1, characterized in that: The bottom end of the scissor lift (2) is connected to the base (1) via a hinge, and the top end of the scissor lift (2) is connected to the top cover (3) via a hinge.

3. The lifting test device capable of adapting to water depth as described in claim 2, characterized in that: The bottom end of the scissor lift (2) is connected to the nylon slider (5), and the top end of the scissor lift (2) is connected to the nylon slider (5).

4. The adaptive water depth lifting test device as described in claim 1, characterized in that: Water pressure expansion joints (4) are installed on both sides of the base (1) and the top cover (3).

5. A method of using a lifting test device capable of adapting to water depth, comprising using a lifting test device capable of adapting to water depth as described in any one of claims 1-4, characterized in that, Includes the following steps: Step 1: The water pressure expansion joint (4) is in normal pressure. The compressed gas (4-3) pushes the expansion joint rod (4-2) against the limit position 2 (4-6). At this time, the scissor lift frame (2) is in the retracted state and the top cover (3) is in the lowest position. Step 2: The water pressure expansion joint (4) gradually moves downward in the water. Water enters the expansion joint cylinder (4-1) through the water permeable hole (4-4). The water pressure gradually increases and pushes the expansion joint rod (4-2) towards the limit position (4-5). The expansion joint rod (4-2) drives the nylon slider (5) to slide. The nylon slider (5) drives the scissor lift frame (2) to rise. The scissor lift frame (2) drives the top cover (3) to rise. The expansion joint rod (4-2) reaches its maximum stroke when it touches the limit position (4-5). Step 3: The water pressure expansion joint (4) gradually moves upward in the water. The water in the expansion joint cylinder (4-1) flows out through the water permeable hole (4-4). The water pressure gradually decreases. The compressed gas (4-3) pushes the expansion joint rod (4-2) to move towards the limit position two (4-6). The expansion joint rod (4-2) drives the scissor lift frame (2) to descend through the nylon slider (5). The scissor lift frame (2) drives the top cover (3) to descend.

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