An autoclave frogman equipment water tightness detection clamp

Abstract

The utility model discloses an autoclave frogman equipment water tightness detection clamp in the field of detection clamp, its structure includes the opening top connection flat plate, the opening bottom support flat plate, support flat plate base, opening support stand, transmission screw rod, opening clamping plate, cushion block, spring screw, bolt. The utility model discloses the position adjustment through support stand, transmission screw rod and clamping plate, realizes accurate clamping to different frogman equipment test sample, through the elastic clamping of spring screw and cushion block, avoids the frogman equipment test sample deformation in the fixed process to improve the reliability of autoclave frogman equipment water tightness detection.

Description

Technical Field

[0001] This utility model relates to the field of testing fixtures, specifically to a water tightness testing fixture for a high-pressure autoclave frogman equipment. Background Technology

[0002] During deep-sea diving, critical equipment such as breathing apparatus and propulsion systems face the threat of high underwater pressure, while key sealed components like gas cylinders and breathing bags are susceptible to pressure deformation and fatigue failure. To verify the watertightness of these components under high-pressure conditions, an autoclave is typically used to simulate the high-pressure environment, placing the diver's equipment inside to evaluate its watertightness. Existing technologies use clamps to fix samples inside the autoclave; however, existing clamps are small, have limited fixing methods, and can obstruct the observation field of view.

[0003] Furthermore, existing autoclave clamps achieve sample clamping by using a drive screw to support the sample via rigid components such as clamping plates and spheres. However, the fixed length of the drive screw easily leads to wasted internal space within the autoclave clamp. For example, if the horizontal characteristic length of the clamp's fixing component is 1 meter, and the clamping component is longer, the drive screw and other components need to be extended outwards, causing the horizontal characteristic length of the clamp to exceed 1 meter during clamping. On the other hand, since the clamping process relies on the screw to support the sample, and the clamping contact point is generally a rigid clamping plate or rigid sphere, non-testable structural deformation can easily be introduced when clamping carbon fiber structures such as propellers, affecting the watertightness test results. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a water tightness testing fixture for high-pressure reactor frogman equipment that can adapt to high-pressure environments and be compatible with different types of frogman equipment.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An improved water tightness testing fixture for a high-pressure autoclave frogman includes a top connecting plate and a bottom supporting plate. A base is positioned at the center of the bottom of the supporting plate. Three or more small circular holes are formed on the connecting plate, and three or more large circular holes are formed on the supporting plate. The number of large circular holes is the same as the number of small circular holes, and their positions are opposite. The lower parts of three supporting columns pass through the large circular holes, and the tops protrude from the small circular holes. Holes are equally spaced along the height of the supporting columns. After tapping the holes, a transmission screw is inserted. A long strip-shaped clamp is fixedly installed at the front end of the transmission screw. A hole is formed at each end of the long strip-shaped clamp, and threads are tapped into the holes. The bottom of a small pad is a spring screw, which is inserted into the hole and then fixed with bolts.

[0007] Furthermore, both the connecting plate and the supporting plate are chamfered triangular plates.

[0008] Furthermore, the base is cylindrical, and a pad is installed at the bottom of the base.

[0009] Furthermore, three small circular holes are provided at each corner of the connecting plate, and the three small circular holes are arranged at equal intervals on the straight line between the corner and the center of the connecting plate.

[0010] Furthermore, three large circular holes are provided at each of the top corners of the support plate, and the three large circular holes are arranged at equal intervals on the straight line between the top corner and the center of the support plate.

[0011] Furthermore, the top of the support column has a threaded protrusion, which protrudes through the aforementioned small circular hole and is then secured by a fastening nut.

[0012] Furthermore, pads are placed at the bottom of the supporting columns.

[0013] The beneficial effects of this utility model are:

[0014] The testing fixture disclosed in this utility model is made of pressure-resistant material, ensuring reliability during water tightness testing under high-pressure environments. It is suitable for water tightness testing of sealed components in autoclaves and features simple structure, convenient operation, and low cost. The position of the support column is adjusted by setting several small and large circular holes. By reducing the length of the transmission screw and making it telescopic, precise clamping of samples of various shapes can be achieved. This solves the problems of existing testing fixtures, such as single structural dimensions, wasted internal space, and limited geometric dimensions of clampable samples.

[0015] The testing fixture disclosed in this utility model features three supporting columns arranged at a 60-degree angle, ensuring a wide field of view and solving the problem of severe obstruction. The support structure, composed of a transmission screw, spring screw, small pads, and a long strip clamp, replaces traditional rigid connectors (such as fastening nuts, clamps, or ball joints), achieving non-destructive sample fixation. The pressure-resistant small pads, possessing a certain degree of elasticity and plasticity, are connected to the long strip clamp via spring screws. The buffering effect of the small pads and the pre-stress of the spring screws reduce or even prevent initial deformation of the carbon fiber structure in the frogman's equipment during fixation. Pads are placed at the bottom of both the supporting columns and the cylindrical base to prevent scratching the inner wall of the autoclave during testing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the testing fixture disclosed in Embodiment 1 of this utility model;

[0017] Figure 2 This is a three-dimensional structural schematic diagram of the testing fixture disclosed in Embodiment 1 of this utility model;

[0018] Figure 3 This is a front view showing the installation relationship between the long strip clamp and the small pad;

[0019] Figure 4 This is a top view showing the installation relationship between the long strip clamp and the small pad;

[0020] Figure 5 The right view shows the installation relationship between the long strip clamp and the small pad.

[0021] Figure 6 It is a 3D diagram showing the installation relationship between the long strip clamp and the small pad;

[0022] Figure 7 This is the front view after the test fixture supports the sample.

[0023] Figure 8 This is a top view of the specimen after the testing fixture has supported it.

[0024] Figure 9 This is a right view after the test fixture supports the sample.

[0025] Figure 10 It is a three-dimensional view of the specimen after the testing fixture supports it.

[0026] Figure label:

[0027] 1—Fastening nut, 2—Supporting column, 3—Connecting plate, 4—Supporting plate, 5—Pan block, 6—Pan block, 7—Transmission screw, 8—Spring screw, 9—Small pad, 10—Long strip clamp, 11—Small round hole, 12—Large round hole, 13—Bolt, 14—Sample, 15—Base. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] Example 1, as Figure 1 As shown in Figure 2, this embodiment discloses a watertightness testing fixture for a high-pressure autoclave diver's equipment. Addressing the issue of ordinary fixtures being unable to withstand high pressure, this fixture is made of pressure-resistant material. This ensures stable clamping of the diver's equipment during the high-pressure autoclave watertightness test. It solves problems such as the limited fixing method, restricted sample size, obstructed observation field, and potential introduction of testing errors inherent in existing fixtures. The fixture includes a top connecting plate 3 and a bottom supporting plate 4. Both the connecting plate and the supporting plate are chamfered triangular plates to prevent damage to the high-pressure autoclave.

[0030] A base 15 is set at the center of the bottom of the support plate. The base is cylindrical, and a pad 6 is installed at the bottom of the base.

[0031] Three small circular holes 11 are provided at each corner of the connecting plate, and the three small circular holes are arranged at equal intervals on a straight line between the corner and the center of the connecting plate. Three large circular holes 12 are provided at each corner of the supporting plate, and the three large circular holes are arranged at equal intervals on a straight line between the corner and the center of the supporting plate. The number of large circular holes is the same as the number of small circular holes, and their positions are opposite. The lower parts of the three supporting columns 2 pass through the large circular holes, and the tops protrude from the small circular holes. The top of the supporting columns is a threaded protrusion, which is secured by a fastening nut 1 after protruding from the small circular holes. A pad 5 is provided at the bottom of the supporting columns.

[0032] The lower part of the three support columns has the same diameter as the large circular hole, while the upper part has a threaded protrusion with the same diameter as the small circular hole. The upper threaded protrusion of the support column is inserted into the small circular hole and secured with a fastening nut. The lower part is then inserted into the large circular hole, thus lifting the connecting plate. To ensure a good observation field and clamping effect, the three support columns can be inserted into the holes at appropriate positions as needed.

[0033] Holes are drilled at equal intervals along the height direction on the support column. After tapping the holes, the transmission screw 7 is inserted. Tapping is to ensure that the transmission screw can be inserted smoothly.

[0034] like Figure 3 As shown in Figure 6, a long strip clamp 10 is fixedly installed at the front end of the transmission screw. A hole is opened at each end of the long strip clamp, and threads are tapped in the hole. The bottom of the small pad 9 is a spring screw 8. After the spring screw is inserted into the hole, it is fixed with a bolt 13.

[0035] like Figure 7 As shown in Figure 10, when clamping samples of different geometric dimensions, firstly, after fully considering the influence of the arrangement of the support columns 2 on the observation field of view, determine the appropriate spatial position of the support columns (preferably close to the sample), insert the support columns 2 into the large circular hole 12 and the small circular hole 11, and then fix them with fastening nuts. Then, load the sample 14 into the testing fixture, and change the relative position between the long strip clamping plate 10 at the end of the transmission screw 7 and the sample by telescopic transmission screw 7, so that the long strip clamping plate 10 is close to the sample surface; finally, adjust the two spring screws 8 on the long strip clamping plate 10 until the small pad 9 on the long strip clamping plate 10 can support the sample, thus completing the clamping of the sample and fixing the sample to the support plate 4.

Claims

1. An autoclave frogman equipment water tightness detection fixture, characterized in that: The device includes a top connecting plate and a bottom supporting plate. A base is set at the center of the bottom of the supporting plate. Three or more small circular holes are made on the connecting plate, and three or more large circular holes are made on the supporting plate. The number of large circular holes is the same as the number of small circular holes, and their positions are opposite. The lower part of the three supporting columns passes through the large circular holes and the top part passes through the small circular holes. Holes are made at equal intervals along the height direction on the supporting columns. After tapping the holes, a transmission screw is inserted. A long strip clamp is fixedly installed at the front end of the transmission screw. A hole is made at each end of the long strip clamp, and the holes are tapped. The bottom of the small pad is a spring screw. After the spring screw is inserted into the hole, it is fixed with a bolt.

2. The water tightness testing fixture for the autoclave frogman equipment according to claim 1, characterized in that: Both the connecting plate and the supporting plate are chamfered triangular plates.

3. The water tightness testing fixture for the autoclave frogman equipment according to claim 1, characterized in that: The base is cylindrical, and a pad is installed at the bottom of the base.

4. The water tightness testing fixture for the autoclave frogman equipment according to claim 2, characterized in that: Three small circular holes are provided at each corner of the connecting plate, and the three small circular holes are arranged at equal intervals on the straight line between the corner and the center of the connecting plate.

5. The water tightness testing fixture for the autoclave frogman equipment according to claim 4, characterized in that: Three large circular holes are provided at each of the top corners of the support plate, and the three large circular holes are arranged at equal intervals on the straight line between the top corner and the center of the support plate.

6. The water tightness testing fixture for the autoclave frogman equipment according to claim 1, characterized in that: The top of the support column has a threaded protrusion that passes through the small circular hole and is secured by a fastening nut.

7. The water tightness testing fixture for the autoclave frogman equipment according to claim 1, characterized in that: Place pads at the bottom of the supporting columns.

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