Video line airtight test tooling

Abstract

The present invention relates to a video line airtight test tooling, wherein the adapter plate of the tooling is sealed and connected with the wall of a low-pressure test box; the adapter plate has a boss on the inner side; a labyrinth groove is processed on the boss; the threading hole of the adapter plate is located on the boss; the entrance of the labyrinth groove is located at the edge of the boss, and the exit is located at the threading hole; the middle section of the video line is coiled in the labyrinth groove, one end enters the inside of the low-pressure test box from the entrance, and the other end passes through the threading hole to the outside of the low-pressure test box; the labyrinth groove is filled with sealant, and the top surface of the sealant is flush with the top surface of the boss; the sealing baffle is fixedly connected with the boss and covers the labyrinth groove. The present invention can withstand high pressure difference between inside and outside to achieve the purpose of sealing the video line, and is mainly used in the low-pressure test box, and is used to test whether the visible light camera can work normally under the ultra-low pressure environment of 5Kpa, and can also be used to test whether it works normally in the environment of high and low temperature test box, damp heat test box, and salt spray test box.

Description

Technical Field

[0001] The present invention belongs to the technical field of airtight inspection, and relates to an airtight test tool for a video cable, which can perform airtight packaging on a finished video cable, thereby achieving an airtight experimental environment and transmitting high-definition images. Background Art

[0002] A visible light camera is an optoelectronic device that converts the moving image of a scene into an electrical signal through optoelectronic devices. It is mainly used in airborne optoelectronic pods and some ground monitoring and reconnaissance equipment to obtain reliable target remote sensing data using its high resolution.

[0003] Currently, there is no suitable airtight connector for HDMI video cables on the market. Therefore, placing a visible light camera in a low-pressure test chamber cannot transmit images in real time, and it is impossible to verify whether the visible light camera can work normally in a 5Kpa low-pressure environment. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a video cable airtight test tool, which can allow the video cable to pass through the wall of a low-pressure test box and connect the visible light camera to be tested placed in the low-pressure test box with an external high-definition display and a power supply without affecting the sealing effect of the low-pressure test box.

[0005] In order to solve the above technical problems, the video cable airtight test tooling of the present invention includes a transfer plate and a sealing baffle; the transfer plate is sealed and connected to the wall of the low-pressure test box; the inner side of the transfer plate is provided with a boss; a labyrinth groove is processed on the boss; the threading hole of the transfer plate is located on the boss; the entrance of the labyrinth groove is located at the edge of the boss, and the exit is located at the threading hole; the middle section of the video cable is coiled in the labyrinth groove, one end enters the interior of the low-pressure test box from the entrance, and the other end passes through the threading hole to the outside of the low-pressure test box; the labyrinth groove is filled with sealant and the top surface of the sealant is flush with the top surface of the boss; the sealing baffle is fixedly connected to the boss and covers the labyrinth groove.

[0006] The labyrinth groove is in a "circular" shape, and the threading hole is located in the middle of the boss.

[0007] The labyrinth groove can also be in a snake-like or spiral shape.

[0008] The adapter plate also has a wiring hole for connecting the airtight connector; the airtight connector is fixedly connected to the adapter plate and its left part is inserted into the wiring hole, and the side of the airtight connector left part in contact with the adapter plate surface has an airtight rubber pad.

[0009] The right side of the wiring hole is surrounded by grooves corresponding to the airtight rubber pad on the airtight connector, and the airtight rubber pad is located in the groove.

[0010] The inner side surface of the adapter plate connected to the wall of the low-pressure test box is provided with an annular groove, and an O-type sealing ring is arranged at the annular groove; the annular groove surrounds the outer side of the boss.

[0011] Furthermore, the present invention also includes an interface component, which is welded and fixed on the wall of the low-pressure test box; the adapter plate is sealed and connected to the interface component.

[0012] The right side surface of the adapter plate is provided with an annular groove A near the edge, the right end of the interface part is provided with a flange, and the left side surface of the flange is provided with an annular groove B; three clamping components are distributed around the adapter plate, and are composed of a left clamping member, a right clamping member and a locking nut; the A clamping protrusion on the left part of the left clamping member is clamped in the B annular groove; the B clamping protrusion on the right part of the right clamping member is clamped in the A annular groove; the screw on the right part of the left clamping member passes through the through hole of the right clamping member and is connected to the locking nut.

[0013] Furthermore, the present invention also includes a glue-coated baffle; the glue-coated baffle is composed of a left baffle and a right baffle; the left baffle and the right baffle are connected and fixed on the right side of the adapter plate; the notches on the opposite sides of the left baffle and the right baffle are spliced ​​into a through hole, and the position of the through hole corresponds to the threading hole.

[0014] Beneficial effects of the present invention:

[0015] 1. A boss is set on the inner side of the adapter plate and has a labyrinth groove. The middle section of the video cable is coiled in the labyrinth groove and sealed with sealant and a sealing baffle, which can increase the resistance so that the video cable will not move from high pressure to low pressure, thereby generating gaps and causing air leakage. It can also withstand a high pressure difference of nearly 100Kpa between the inside and the outside, thereby achieving the purpose of sealing the video cable.

[0016] 2. The boss of the adapter plate is hidden inside the test box interface during installation. This structure greatly reduces the volume of the test box. The "U"-shaped structure size inside the boss is compatible with a variety of video cables currently on the market, which improves the versatility of the test tooling.

[0017] Since the finished HDMI cable is a mature product in China, there is no reliable and airtight HDMI connector on the market. As a set of inspection tools, the present invention has high reliability, can accurately inspect the quality of the equipment, can meet the requirements in practical applications, and has practicality. It is mainly used in low-pressure test boxes to test whether the visible light camera can work normally under the ultra-low pressure environment of 5Kpa. It can also be used to test whether it works normally in high and low temperature test boxes, damp heat test boxes, and salt spray test boxes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall assembly diagram of the present invention.

[0019] Figure 2It is a schematic diagram of the connection between the present invention and the interface components on the low pressure test box.

[0020] Figure 3 This is a cross-sectional view of the adapter plate.

[0021] Figure 4a This is a left side view of an embodiment of the transfer plate. Figure 4b It is a left side view of another embodiment of the adapter plate.

[0022] Figure 5 This is the right side view of the adapter plate.

[0023] Figure 6 This is the right side view of the sealing baffle.

[0024] Figure 7 Schematic diagram of the glue-coated baffle.

[0025] Figure 8 This is the front view of the gas-tight connector.

[0026] Fig. 9 A cross-sectional view of a gas-tight connector.

[0027] In the figure: 1. adapter plate, 110. annular groove, 120. boss, 121. contact surface, 122. labyrinth groove, 1221. entrance, 1222. exit, 123. threading hole, 130. wiring hole, 131. groove, 140. A annular groove, 2. sealing baffle, 210. sealing groove, 3. airtight connector, 4. interface part, 410. flange, 411. B annular groove, 5. snap-on assembly, 510. left clamp, 511. A clamping convex, 520. right clamp, 521. B clamping convex, 530. locking nut, 6. glue-coated baffle, 610. left baffle, 620. right baffle, 630. via, 7. video cable. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" or "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] like Figure 1 , 2 As shown, the airtight test tool for the video cable of the present invention comprises an adapter plate 1, a sealing baffle 2, an airtight connector 3, an interface component 4, three snap-on components 5, and a glue-coated baffle 6.

[0033] As shown in Figs. 4 and 5, the inner side of the adapter plate 1 connected to the wall of the low-pressure test box has an annular groove 110, and an O-ring is arranged at the annular groove 110; the middle part of the inner side of the adapter plate 1 surrounded by the annular groove 110 has a square boss 120 and a wiring hole 130 for connecting the airtight connector; the edges of the boss 120 are contact surfaces 121 with the sealing baffle 2, and the middle part is processed as shown in Figs. Figure 4a The "U"-shaped labyrinth groove 122 is shown; the threading hole 123 of the adapter plate 1 is located in the middle of the boss 120; the entrance 1221 of the labyrinth groove 122 is located at the edge of the boss 120, and the exit 1222 is located at the threading hole 123; the wiring hole 130 is located above the boss 120, and has grooves 131 on the right side corresponding to the airtight rubber pad on the airtight connector 3.

[0034] The boss 120 may also be in a rectangular, circular or other shapes.

[0035] The labyrinth groove 122 can also be used as follows Figure 4b The serpentine, spiral or other shapes shown may be used.

[0036] The wiring hole 130 may also be located below the boss 120 or at other locations.

[0037] The middle section of the video cable 7 is coiled in the labyrinth groove 122, one end of which passes through the entrance 1221 to connect to the visible light camera to be tested arranged inside the low-pressure test box, and the other end passes through the threading hole 123 to connect to the external display and power supply; the labyrinth groove is filled with sealant and the top surface of the sealant is flush with the contact surface 121 of the boss 120, which is used to encapsulate the middle section of the video cable 7.

[0038] Considering that the sealant in the labyrinth groove 122 cannot withstand the high pressure difference of nearly 100Kpa between the inside and the outside, a sealing baffle 2 is manufactured. Figure 6 As shown, the sealing baffle 2 has an annular sealing groove 210 at a position corresponding to the contact surface 121, and an O-ring is arranged in the sealing groove 210; the sealing baffle 2 is fixedly connected to the contact surface 121 of the boss 120 by a plurality of screws near the edge; in this way, only a small part of the sealant will be subjected to the pressure difference, and most of the pressure difference will be borne by the sealing baffle made of metal, so as to achieve the sealing of the video cable.

[0039] The middle section of the video cable 7 is coiled in the labyrinth groove 122 and sealed with sealant, which can increase resistance and prevent the video cable from moving from high pressure to low pressure, thereby generating gaps and causing air leakage.

[0040] The video cable 7 is an HDMI video cable, a VGA video cable, a DVI video cable, an AV video cable, an SDI video cable, etc.

[0041] The sealing baffle can be made of hard metal materials such as stainless steel to ensure that it will not deform under high pressure difference.

[0042] like Figure 1 As shown, the right side of the adapter plate 1 has an A-shaped groove 140 near the edge.

[0043] like Figure 2 , 3 As shown, a cylindrical interface member 4 is welded and fixed on the wall of the low pressure test box; the right end of the interface member 4 has a flange 410, and the left side of the flange 410 has a B annular groove 411.

[0044] The adapter plate 1 is connected by three clamping components 5 distributed around; the clamping component 5 is composed of a left clamp 510, a right clamp 520 and a locking nut 530; the left part of the left clamp 510 has an A clamping protrusion 511 facing the right, and the A clamping protrusion 511 is clamped in the B annular groove 411; the right part of the left clamp 510 is a screw; the right part of the right clamp 520 has a B clamping protrusion 521, and the B clamping protrusion 521 is clamped in the A annular groove 140; the screw on the right part of the left clamp 510 passes through the through hole of the right clamp 520 and is connected with the locking nut 530; by rotating the locking nut, the left clamp 510 and the right clamp 520 can clamp the adapter plate 1 and the interface member 4 together and squeeze the O-ring at the annular groove 110 on the left side of the adapter plate 1 to achieve a sealing effect.

[0045] The adapter plate 1 can also be directly welded and fixed to the wall of the low pressure test box.

[0046] The adapter plate 1 can also be fixed to the interface member 4 by welding or by flange connection.

[0047] Since the exit 1222 of the labyrinth groove 122 is located at the threading hole 123, the glue is easy to flow out directly from the threading hole 123 when the sealant is poured, affecting the sealing effect. Therefore, the present invention uses a glue-coating baffle 6 to block the glue. Figure 7 As shown, the glue-coated baffle 6 is composed of a left baffle 610 and a right baffle 620; after the video line passes through the threading hole 123, the left baffle 610 and the right baffle 620 are spliced ​​together and fixed to the right side of the adapter plate by screw connection; the semicircular notches on the opposite sides of the left baffle 610 and the right baffle 620 are spliced ​​into a through hole 630, and the aperture of the through hole 630 is slightly larger than the diameter of the video line, which is used for the video line to pass through. The left baffle 610 and the right baffle 620 can limit the glue from flowing out before the sealant is completely dry.

[0048] The airtight connector 3 is as follows Figure 8 , 9 As shown, the left part of the airtight connector 3 is inserted into the wiring hole 130 and fixedly connected to the adapter plate 1 by screws. The side of the left part of the airtight connector that contacts the adapter plate 1 has an airtight rubber pad, which is located in the groove 131 to achieve an airtight effect. The airtight connector 3 is used to power the visible light camera to be tested in the low pressure test box and send instructions.

[0049] Place the visible light camera to be tested in the low-pressure test box, connect the visible light camera to be tested and the high-definition display and power supply through a video cable; then the working status of the visible light camera to be tested in the experiment can be observed.

Claims

1. A video line airtightness test tool, characterized in that The invention comprises an adapter plate (1) and a sealing baffle (2); the adapter plate (1) is sealed and connected to the wall of a low-pressure test box; the adapter plate (1) has a boss (120) on the inner side; a labyrinth groove (122) is processed on the boss (120); a threading hole (123) of the adapter plate (1) is located on the boss (120); an entrance (1221) of the labyrinth groove (122) is located at the edge of the boss (120), and an exit (1222) of the labyrinth groove (122) is located at the edge of the boss (120). 222) is located at the threading hole (123); the middle section of the video cable (7) is coiled in the labyrinth groove (122), one end of which enters the low-pressure test box from the entrance (1221), and the other end of which passes through the threading hole (123) to the outside of the low-pressure test box; the labyrinth groove is filled with sealant and the top surface of the sealant is flush with the top surface of the boss (120); the sealing baffle (2) is fixedly connected to the boss (120) and covers the labyrinth groove.

2. The video line airtightness test tool according to claim 1 is characterized in that The labyrinth groove (122) is in a "U" shape, and the threading hole (123) is located in the middle of the boss (120).

3. The video line airtightness test tool according to claim 1 is characterized in that The labyrinth groove (122) is in a snake shape.

4. The video line airtightness test tool according to claim 1 is characterized in that The labyrinth groove (122) is in a spiral shape.

5. The video line airtightness test tool according to claim 1 is characterized in that The adapter plate (1) also has a wiring hole (130) for connecting an airtight connector; the airtight connector (3) is fixedly connected to the adapter plate (1) and its left part is inserted into the wiring hole (130), and the side of the left part of the airtight connector that contacts the surface of the adapter plate (1) has an airtight rubber pad.

6. The video line airtightness test tool according to claim 5, characterized in that The right side of the wiring hole (130) is surrounded by a groove (131) corresponding to the airtight rubber pad on the airtight connector (3), and the airtight rubber pad is located in the groove (131).

7. The video line airtightness test tool according to claim 1 is characterized in that The inner side surface of the adapter plate (1) connected to the wall of the low-pressure test box has an annular groove (110), and an O-type sealing ring is arranged at the annular groove (110); the annular groove (110) surrounds the outer side of the boss (120).

8. The video line airtightness test tool according to claim 1 is characterized in that It also includes an interface component (4), which is welded and fixed on the wall of the low-pressure test box; the adapter plate (1) is sealed and connected to the interface component (4).

9. The video line airtightness test tool according to claim 8, characterized in that The right side surface of the adapter plate (1) is provided with an A annular groove (140) near the edge, the right end of the interface member (4) is provided with a flange (410), and the left side surface of the flange (410) is provided with a B annular groove (411); three clamping components (5) are distributed around the adapter plate (1), and are composed of a left clamping member (510), a right clamping member (520) and a locking nut (530); the A clamping protrusion (511) on the left part of the left clamping member (510) is clamped in the B annular groove (411); the B clamping protrusion (521) on the right part of the right clamping member (520) is clamped in the A annular groove (140); the screw on the right part of the left clamping member (510) passes through the through hole of the right clamping member (520) and is connected to the locking nut (530).

10. The video line airtightness test tool according to claim 1, characterized in that It also includes a glue-coated baffle (6); the glue-coated baffle (6) is composed of a left baffle (610) and a right baffle (620); the left baffle (610) and the right baffle (620) are connected and fixed on the right side of the adapter plate; the notches on the opposite sides of the left baffle (610) and the right baffle (620) are spliced ​​into a through hole (630), and the position of the through hole (630) corresponds to the threading hole (123).

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