Water pressure test device for watertight electric connector

Abstract

The utility model relates to the technical field of watertight electric connector testing, and discloses a watertight electric connector hydraulic pressure testing device which comprises a bottom frame and a tank body assembly, two stand columns are symmetrically welded to the upper portion of the bottom frame, and elastic indexing pins are installed on the side portions of the stand columns. The tank body assembly is rotationally installed in a U-shaped groove in the upper portion of the stand column through a threaded pin, the bottom frame and the tank body assembly serve as the core, flexible movement and rapid overturning of the tank body assembly can be achieved, the test is more convenient, and a plurality of threaded through holes are formed in the sealing cover in an annular array mode and used for installing a watertight electric connector. A watertight electric connector to be tested is installed on the sealing cover, a connecting wire is led out from one end of the sealing cover, the sealing cover is installed in the tank body and pressed tightly through the threaded sleeve, bidirectional installation is achieved, the structure is compact, light and flexible, operation is easy, batch watertight electric connectors can be allowed to be subjected to water pressure tests at the same time, and time, water, labor and space are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of watertight electric connector testing, in particular to a watertight electric connector water pressure testing device. Background Art

[0002] Watertight electrical connectors are typically used to connect electrical signals between devices in surface, underwater, or deep-sea environments. Their basic performance characteristics include conductivity, insulation, mechanical life, tensile strength, and pressure resistance. Currently, the mainstream method for testing the pressure resistance of watertight electrical connectors is to place the mated watertight connectors in a pressure tank and lead the cables out of the pressure tank for a water pressure test. Deepwater watertight electrical connectors typically withstand pressures of tens of MPa. Batch testing of watertight electrical connectors requires pressure tanks capable of withstanding internal pressures of tens of MPa. Traditional testing requires large pressure tanks, high water consumption, and time-consuming pressure increases and decreases. The testing costs are high, and the dedicated site required occupies an excessively large area. Consequently, in-depth research into the aforementioned issues led to this case. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides a watertight electrical connector water pressure test device, which solves the problems raised in the background art.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a watertight electrical connector water pressure test device, comprising a bottom frame and a tank assembly, wherein two columns are symmetrically welded on the upper part of the bottom frame, and elastic indexing pins are installed on the sides of the columns, and the tank assembly is rotatably installed in the U-shaped groove on the upper part of the column by means of threaded pins; the tank assembly comprises a tank body, and sealing mounting assemblies with identical structures are symmetrically provided at both ends of the tank body, and two threaded through holes are provided on the outer circumference of the tank body, which are respectively connected to the hydraulic interface and the pressure relief valve; an extension plate and a pad are symmetrically arranged on the outer circumference of the tank body, and the threaded pin is threadedly connected to the extension plate and the pad, and blind holes matching the elastic indexing pins are symmetrically opened on the outer circumference of the tank body;

[0005] The sealing installation assembly includes a sealing cover, which is inserted into the tank body. The outer side of the sealing cover is pressed by a threaded sleeve. The outer annular surface of the threaded sleeve is provided with an external thread that cooperates with the internal thread provided at the port of the tank body to form a threaded fastening structure. A pull ring is connected to the center of the outer side of the sealing cover through a thread. A plurality of threaded through holes are opened along an annular array on the sealing cover for installing a watertight electrical connector.

[0006] A positioning through hole is provided at the lower portion of the extension plate corresponding to the position of the elastic indexing pin, and inclined surfaces are provided on both sides of the positioning through hole.

[0007] The number of threaded through holes on the sealing cover is fourteen.

[0008] The pressure relief valve comprises a pressure relief screw, a valve sleeve, a valve body and a sealing ring. The sealing ring is installed in the valve body. The valve sleeve is connected to the valve body through threads. The pressure relief screw is connected to the valve sleeve through threads.

[0009] A sealing groove is provided on the outer side of the sealing cover, and a sealing gasket is installed at the position of the sealing groove.

[0010] Four casters are symmetrically arranged at the lower end of the bottom frame.

[0011] The utility model provides a watertight electrical connector water pressure test device. It has the following beneficial effects: the watertight electrical connector water pressure test device, with a bottom frame and a tank assembly as its core, can realize flexible movement and rapid flipping of the tank assembly, making testing more convenient. A plurality of threaded through holes are opened in a circular array along the upper side of the sealing cover for installing the watertight electrical connector. The watertight electrical connector to be tested is installed on the sealing cover, and the connecting wire is led out from one end of the sealing cover. The sealing cover is installed in the tank and tightened with a threaded sleeve. The bidirectional installation has a compact structure, is lightweight and flexible, and is easy to operate. It can allow batches of watertight electrical connectors to be water pressure tested simultaneously, saving time, water, labor, and space. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a water pressure test device for a watertight electrical connector.

[0013] Figure 2 This is a structural schematic diagram of a watertight electrical connector water pressure test device according to the present invention when end A is located at the top.

[0014] Figure 3 This is a structural schematic diagram of a watertight electrical connector water pressure test device according to the present invention when the B end is located at the top.

[0015] Figure 4 This is a structural schematic diagram of the tank assembly of the present invention when it is in a horizontal state.

[0016] Figure 5 It is a schematic diagram of the three-dimensional structure of the tank assembly of the utility model.

[0017] Figure 6 For the utility model Figure 5 A schematic diagram of the structure from a side view.

[0018] Figure 7 For the utility model Figure 5 Schematic diagram of the main cross-sectional structure.

[0019] Figure 8 For the utility model Figure 7 Schematic diagram of the local enlarged structure.

[0020] In the figure: 1. Bottom frame; 2. Tank assembly; 3. Casters; 4. Column; 5. Elastic indexing pin; 2a. Tank; 2b. Threaded sleeve; 2c. Sealing cover; 2d. Hydraulic interface; 2e. Threaded pin; 2f. Extension plate; 2g. Spacer; 2h. Pull ring; 2i. Pressure relief valve; 2j. Sealing gasket; 2i1. Pressure relief screw; 2i2. Valve sleeve; 2i3. Valve body; 2i4. Sealing ring; A. A end; B. B end. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example: In conjunction with the specification Figure 1-8 It can be seen that in order to solve the problems faced by batch water pressure tests of high-pressure watertight electrical connectors in the prior art, such as the need for large pressure tanks, high test costs, and large floor space, a small watertight electrical connector water pressure test device with simple operation, compact layout, and capable of batch testing is designed, comprising a bottom frame 1 and a tank assembly 2, two columns 4 are symmetrically welded on the upper part of the bottom frame 1, and elastic indexing pins 5 are installed on the sides of the columns 4. The tank assembly 2 is rotatably installed in the U-shaped groove on the upper part of the column 4 through a threaded pin 2e; the tank assembly 2 includes a tank body 2a, and sealing mounting assemblies with the same structure are symmetrically provided at both ends of the tank body 2a. Two threaded through holes are provided on the outer circumference of the tank body 2a, which are respectively connected to the hydraulic interface 2d and the pressure relief valve 2i; an extension plate 2f and a pad 2g are symmetrically arranged on the outer circumference of the tank body 2a, and the threaded pin 2e is threadedly connected to the extension plate 2f and the pad 2g, and blind holes matching the elastic indexing pin 5 are symmetrically opened on the outer circumference of the tank body 2a;

[0023] The sealing installation assembly includes a sealing cover 2c, which is inserted into the tank body 2a. The outer side of the sealing cover 2c is pressed by a threaded sleeve 2b. The outer annular surface of the threaded sleeve 2b is provided with an external thread, which cooperates with the internal thread provided at the port of the tank body 2a to form a threaded fastening structure. The center of the outer side of the sealing cover 2c is connected to a pull ring 2h through a thread. A plurality of threaded through holes are opened in a circular array along the upper edge of the sealing cover 2c for installing a watertight electrical connector.

[0024] A positioning through hole is provided at the lower part of the extension plate 2f corresponding to the position of the elastic indexing pin 5, and inclined surfaces are provided on both sides of the positioning through hole; there are fourteen threaded through holes on the sealing cover 2c; the pressure relief valve 2i includes a pressure relief screw 2i1, a valve sleeve 2i2, a valve body 2i3 and a sealing ring 2i4, the sealing ring 2i4 is installed in the valve body 2i3, the valve sleeve 2i2 is connected to the valve body 2i3 by threads, and the pressure relief screw 2i1 is connected to the valve sleeve 2i2 by threads; a sealing groove is provided on the outer side of the sealing cover 2c, and a sealing gasket 2j is installed at the position of the sealing groove; four casters 3 are symmetrically provided at the lower end of the bottom frame 1.

[0025] The working principle is as follows: When in use, push the bottom frame 1 to move the test device to the test station, such as Figure 1-2 As shown, the tank body 2a is rotated to be in an A-end upward posture. During the rotation process, the front end pin head of the elastic indexing pin 5 contacts the outer circle of the tank body 2a and is continuously and gradually compressed. When the tank body 2a is rotated to a vertical posture, the elastic indexing pin 5 is facing the blind hole that matches it on the tank body 2a. The elastic indexing pin 5, with the help of its own spring, extends the pin head and inserts it into the blind hole to achieve a limited locking of the tank body 2a, so that the tank body 2a remains locked in the A-end upward posture. Screw the threaded sleeve 2b to exit the tank body 2a, hold the pull ring 2h and pull up the sealing cover 2c, install the 14 tested watertight electrical connectors in the threaded through holes on the sealing cover 2c, and lead the tested watertight electrical connector cables out from the other side of the sealing cover 2c. Install the sealing cover 2c back into the tank body 2a, and then replace the threaded sleeve 2b to press the sealing cover 2c. Pull out the elastic indexing pin 5 to release the tank body 2a. Figure 3 As shown, the tank body 2a is rotated to a B-end upward posture. During the rotation process, the front end pin head of the elastic indexing pin 5 contacts the outer circle of the tank body 2a and is continuously and gradually compressed. When rotated to a vertical posture, the elastic indexing pin 5 is facing the blind hole that matches it on the tank body 2a. The elastic indexing pin 5, with the help of its own spring, extends the pin head and inserts it into the blind hole to achieve a limited locking of the tank body 2a, so that the tank body 2a remains locked in a B-end upward posture. Remove the sealing cover 2c at the B end according to the operation method of the A end, inject water into the interior of the tank body 2a, and then install the 14 tested watertight electrical connectors according to the operation method of the A end and lock the threaded sleeve 2b. Pull out the elastic indexing pin 5 to release the tank body 2a, and rotate the tank body 2a to a horizontal posture. During the rotation process, loosen the opposite side elastic indexing pin 5, so that the front end pin head of the elastic indexing pin 5 contacts the inclined surface of the extension plate 2f and is continuously and gradually compressed. When it is rotated to a completely horizontal posture, as shown Figure 4As shown, the elastic indexing pin 5 is facing the matching positioning hole on the extension plate 2f. With the help of its own spring, the elastic indexing pin 5 inserts the pin head into the positioning hole on the extension plate 2f, thereby locking the tank body 2a in a horizontal position. The pressure relief screw 2i1 of the pressure relief valve 2i is screwed to move it upward. During the movement, the contact portion of the pressure relief screw 2i1 with the sealing ring 2i4 changes from a cylindrical surface to a conical surface, causing the deformation and compression of the sealing ring 2i4 to continuously decrease until the seal fails. A gap appears between the sealing ring 2i4 and the pressure relief screw 2i1, and a gap between the pressure relief screw 2i1 and the valve sleeve 2i2. The opening at the tail end of the pressure relief screw 2i1 is connected to the central radial through hole. With the help of the above-mentioned channel and gap, the interior of the tank body 2a is connected to the outside world. Water is injected into the tank body 2a through the hydraulic interface 2d to increase the pressure. The excess air will be discharged through the pressure relief valve 2i. After the exhaust is completed, the pressure relief screw 2i1 of the pressure relief valve 2i is screwed down and locked. During the movement, the part in contact with the sealing ring 2i4 changes from a conical surface to a cylindrical surface. The compression of the sealing ring 2i4 continues to increase until the seal takes effect. At this time, a sealed cavity is formed inside the tank body 2a. The watertight electrical connector under test can be subjected to a water pressure test as required. The electrical performance of the watertight electrical connector under test can be intermediately tested through the cables led out from both ends of the tank body 2a. After the test is complete, the pressure is released to 0 MPa. The elastic indexing pin 5 is pulled out to release the extension plate 2f. The tank body 2a is rotated to lock it in the A-end upward position. The pressure relief screw 2i1 of the pressure relief valve 2i is loosened to connect the interior of the tank body 2a to the outside world. The threaded sleeve 2b is removed, and the sealing cap 2c is pulled out. The watertight electrical connector under test is removed. If the test continues, the next set of 14 watertight electrical connectors under test are installed in the sealing cap 2c. The sealing cap 2c is then replaced in the tank body 2a and tightened with the threaded sleeve 2b. The elastic indexing pin 5 is pulled out to release the tank body 2a. The tank body 2a is rotated to lock it in the B-end upward position, and the 14 watertight electrical connectors under test are installed and tightened as described for the A-end. After purging the air inside, tighten the pressure relief valve 2i and prepare for the next hydrostatic test. The compact, lightweight, flexible, and simple to operate system allows for simultaneous hydrostatic testing of 28 watertight electrical connectors of the same model, saving time, water, labor, and space.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A watertight electrical connector water pressure test device, characterized in that: It comprises a bottom frame (1) and a tank assembly (2), wherein two columns (4) are symmetrically welded on the upper part of the bottom frame (1), and elastic indexing pins (5) are installed on the sides of the columns (4), and the tank assembly (2) is rotatably installed in the U-shaped groove on the upper part of the column (4) through a threaded pin (2e); the tank assembly (2) comprises a tank body (2a), and sealing installation components with the same structure are symmetrically provided at both ends of the tank body (2a), and the outer circumference of the tank body (2a) is provided with two threaded through holes respectively connected to the hydraulic interface (2d) and the pressure relief valve (2i); an extension plate (2f) and a cushion block (2g) are symmetrically arranged on the outer circumference of the tank body (2a), and the threaded pin (2e) is threadedly connected to the extension plate (2f) and the cushion block (2g), and blind holes matching the elastic indexing pins (5) are symmetrically opened on the outer circumference of the tank body (2a); The sealing installation assembly comprises a sealing cover (2c), the sealing cover (2c) being inserted into the tank body (2a), the outer side of the sealing cover (2c) being pressed by a threaded sleeve (2b), the outer annular surface of the threaded sleeve (2b) being provided with an external thread which cooperates with the internal thread provided at the port of the tank body (2a) to form a threaded fastening structure, the outer center of the sealing cover (2c) being connected to a pull ring (2h) via a thread, and a plurality of threaded through holes are provided in an annular array along the upper edge of the sealing cover (2c) for installing a watertight electrical connector.

2. A watertight electrical connector water pressure test device according to claim 1, characterized in that: A positioning through hole is provided at the lower portion of the extension plate (2f) at a position corresponding to the elastic indexing pin (5), and inclined surfaces are provided on both sides of the positioning through hole.

3. A watertight electrical connector water pressure test device according to claim 1, characterized in that: The number of threaded through holes on the sealing cover (2c) is fourteen.

4. A watertight electrical connector water pressure test device according to claim 1, characterized in that: The pressure relief valve (2i) comprises a pressure relief screw (2i1), a valve sleeve (2i2), a valve body (2i3) and a sealing ring (2i4); the sealing ring (2i4) is installed in the valve body (2i3); the valve sleeve (2i2) and the valve body (2i3) are connected via threads; and the pressure relief screw (2i1) and the valve sleeve (2i2) are connected via threads.

5. The watertight electrical connector water pressure test device according to claim 1, characterized in that: A sealing groove is provided on the outside of the sealing cover (2c), and a sealing gasket (2j) is installed at the sealing groove.

6. A watertight electrical connector water pressure test device according to claim 1, characterized in that: Four casters (3) are symmetrically provided at the lower end of the bottom frame (1).

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