Video isolator based on low-delay transmission

Abstract

The utility model relates to the field of video isolators, and provides a video isolator based on low delay transmission, which comprises an isolator body, a shock-proof seat and a connecting plate, the bottom wall of the isolator body is fixedly connected with two connecting bulges, the connecting bulges are provided with connecting grooves, the inner wall of the mounting groove is fixedly connected with a buffer layer, and the shock-proof seat is fixedly connected with the buffer layer. The inner wall of the transmission groove is slidably connected with two displacement blocks, the displacement blocks are provided with threaded holes, the top walls of the displacement blocks are fixedly connected with extension strips, the upper ends of the extension strips are fixedly connected with connecting pieces, the top walls and the bottom walls of the connecting pieces are fixedly connected with second elastic pieces, and the second elastic pieces are fixedly connected with limiting pieces; the inner wall of the transmission groove is rotatably connected with a threaded rod, the threaded rod is in threaded connection with the inner walls of the two threaded holes, the threaded rod is fixedly connected with a worm gear, the worm gear is located in the transmission cavity, the inner wall of the transmission cavity is rotatably connected with a worm, and the upper end of the worm is fixedly connected with a grip. Through the first elastic piece and the second elastic piece, a double-shock-proof effect can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of video isolators, specifically to a video isolator based on low-latency transmission. Background Technology

[0002] Underground mines are characterized by dense dust, fog, and toxic gases. Due to the unique working environment, video communication equipment must comply with the relevant GB3836 safety standard. In emergency rescue situations, maximizing the transmission of the most on-site information using limited communication resources is crucial. Video transmission consumes the most resources for information transmission by underground mining robots. While intrinsically safe analog cameras are often used in situations where high resolution is not critical, most underground mining robots employ an explosion-proof and intrinsically safe design to ensure both battery life and explosion-proof compatibility. This necessitates the use of video isolators to isolate the intrinsically safe cameras from power and signal signals.

[0003] Current video isolators lack shock absorption mechanisms, making the underground robots bumpy during movement and easily damaging the video isolators. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model aims to provide a video isolator based on low-latency transmission. To solve these problems, this utility model employs the following technical solution:

[0005] A video isolator based on low-latency transmission includes an isolator body, a shock-absorbing base, and a connecting plate. Two connecting protrusions are fixed to the bottom wall of the isolator body, and each protrusion has a connecting groove. A power interface and a low-latency video signal interface are fixed to the side wall of the isolator body. The shock-absorbing base has a mounting groove and a transmission cavity. A transmission groove is formed in the bottom wall of the mounting groove, and a buffer layer is fixed to the inner wall of the mounting groove. A shock-absorbing plate is connected to the bottom wall of the mounting groove via a first elastic element. Two displacement blocks are slidably connected to the inner wall of the transmission groove, and each displacement block has a threaded hole. The top of the displacement block... An extension strip is fixed to the wall, with its upper end extending above the shock absorber. A connecting piece is fixed to the upper end of the extension strip, and a second elastic element is fixed to both the top and bottom walls of the connecting piece. A limit piece is fixed to the second elastic element and is inclined. A threaded rod is rotatably connected to the inner wall of the transmission groove. The threaded rod is threaded into the inner walls of two threaded holes and extends into the transmission cavity. A worm gear is fixed to the threaded rod and is located in the transmission cavity. A worm is rotatably connected to the inner wall of the transmission cavity, and the worm and worm gear mesh. The upper end of the worm extends above the shock absorber, and a handle is fixed to the upper end of the worm.

[0006] Preferably, an indicator light is fixedly connected to the outer wall of the isolator body.

[0007] Preferably, heat dissipation fins are fixed to the outer wall of the isolator body.

[0008] Preferably, the connecting plate has mounting holes, and bolts pass through the mounting holes to fix the connecting plate to the robot body.

[0009] Preferably, the isolator body contains a signal isolation module.

[0010] Preferably, the isolator body contains a power isolation module.

[0011] Preferably, the isolator body contains a signal processing module.

[0012] Preferably, the signal isolation module includes an opto-isolation unit and a magnetic coupling isolation unit.

[0013] Preferably, the signal processing module includes a low-latency decoding chip.

[0014] Preferably, the isolator body is made of stainless steel.

[0015] The present invention has the following beneficial effects:

[0016] This invention allows two displacement blocks to move in opposite directions by rotating the handle, thereby inserting the limiting piece into the connecting groove and supporting and limiting the connecting protrusion and the isolator body, thus completing the connection and installation without the need for additional parts and tools. It is convenient and quick. The first and second elastic components can achieve a dual shock absorption effect, preventing the isolator body from being damaged by vibration when the robot moves. Attached Figure Description

[0017] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a video isolator based on low-latency transmission according to this utility model;

[0019] Figure 2 This is a utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a utility model Figure 1 A schematic diagram of the structure of the connecting protrusion in the middle;

[0021] Figure 4 This is a utility model Figure 1 A schematic diagram of the middle connecting plate.

[0022] Reference numerals: 1. Isolator body; 2. Vibration damper seat; 3. Connecting plate; 4. Connecting protrusion; 5. Connecting groove; 6. Power interface; 7. Low-latency video signal interface; 8. Indicator light; 9. Mounting groove; 10. Buffer layer; 11. Vibration damping plate; 12. First elastic element; 13. Transmission groove; 14. Transmission cavity; 15. Handle; 16. Worm gear; 17. Worm wheel; 18. Threaded rod; 19. Displacement block; 20. Threaded hole; 21. Extension strip; 22. Connecting piece; 23. Limiting piece; 24. Second elastic element; 25. Mounting hole; 26. Bolt; 27. Heat dissipation fins. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] like Figures 1-4As shown, a video isolator based on low-latency transmission includes an isolator body 1, a shock-absorbing base 2, and a connecting plate 3. Two connecting protrusions 4 are fixed to the bottom wall of the isolator body 1, and connecting grooves 5 are formed on the connecting protrusions 4. A power interface 6 and a low-latency video signal interface 7 are fixed to the side wall of the isolator body 1. The shock-absorbing base 2 has a mounting groove 9 and a transmission cavity 14. A transmission groove 13 is formed on the bottom wall of the mounting groove 9. A buffer layer 10 is fixed to the inner wall of the mounting groove 9. A shock-absorbing plate 11 is connected to the bottom wall of the mounting groove 9 via a first elastic element 12. Two displacement blocks 19 are slidably connected to the inner wall of the transmission groove 13. Threaded holes 20 are formed on the displacement blocks 19, and an extension strip 2 is fixed to the top wall of the displacement blocks 19. 1. The upper end of the extension strip 21 extends to the top of the shock absorber 2. A connecting piece 22 is fixedly connected to the upper end of the extension strip 21. A second elastic member 24 is fixedly connected to both the top and bottom walls of the connecting piece 22. A limiting piece 23 is fixedly connected to the second elastic member 24. The limiting piece 23 is inclined. A threaded rod 18 is rotatably connected to the inner wall of the transmission groove 13. The threaded rod 18 is threadedly connected to the inner wall of two threaded holes 20. The threaded rod 18 extends into the transmission cavity 14. A worm gear 17 is fixedly connected to the threaded rod 18. The worm gear 17 is located in the transmission cavity 14. A worm 16 is rotatably connected to the inner wall of the transmission cavity 14. The worm 16 and the worm gear 17 mesh. The upper end of the worm 16 extends to the top of the shock absorber 2. A handle 15 is fixedly connected to the upper end of the worm 16.

[0027] In one optional embodiment of this utility model, an indicator light 8 is fixedly connected to the outer wall of the isolator body 1. The indicator light 8 can indicate whether the isolator body 1 is correctly powered.

[0028] According to an optional embodiment of the present invention, heat dissipation fins 27 are fixedly connected to the outer wall of the isolator body 1.

[0029] According to an optional embodiment of the present invention, the connecting plate 3 is provided with mounting holes 25, and bolts 26 pass through the mounting holes 25 to fix the connecting plate 3 to the robot body.

[0030] According to an optional embodiment of the present invention, the isolator body 1 is provided with a signal isolation module.

[0031] According to an optional embodiment of the present invention, the isolator body 1 is provided with a power isolation module.

[0032] According to an optional embodiment of the present invention, the isolator body 1 is provided with a signal processing module.

[0033] According to an optional embodiment of this utility model, the signal isolation module includes an opto-isolation unit and a magnetic coupling isolation unit. The opto-isolation unit uses a high-speed optocoupler with a response time ≤10ns to perform photoelectric conversion on digital video signals, improving anti-interference capability; the magnetic coupling isolation unit uses a high-frequency transformer with an operating frequency ≥10MHz, used for isolation of analog video signals (CVBS / BNC), reducing transmission loss.

[0034] According to an optional embodiment of this invention, the signal processing module includes a low-latency decoding chip. It supports low-latency mode and is suitable for real-time monitoring in mines.

[0035] According to an optional embodiment of this utility model, the isolator body 1 is made of 304 stainless steel. 304 stainless steel has the advantages of high hardness, corrosion resistance, and good explosion-proof performance.

[0036] Implementation process: First, use bolts 26 to pass through mounting holes 25 to fix the connecting plate 3 inside the robot. Then, install the isolator body 1 onto the shock absorber seat 2. Align the isolator body 1 with the mounting groove 9 and insert it into the bottom wall of the isolator body 1 and the top wall of the shock absorber 11. The outer wall of the isolator body 1 and the buffer layer 10 are in contact. Rotate the handle 15, which will drive the worm gear 16 and the threaded rod 18 to rotate. Since the threaded rod 18 is threaded to the inner wall of the two threaded holes 20, the rotation of the threaded rod 18 will drive the two displacement blocks 19 to move away from each other, so that the two connecting pieces 22 are inserted into the two connecting grooves 5 respectively. After the limiting piece 23 abuts against the inner wall of the connecting groove 5, it changes from an inclined state to a horizontal state. The limiting piece 23 supports and limits the connecting protrusion 4, thereby quickly completing the connection and installation of the shock absorber seat 2 and the isolator body 1.

[0037] This utility model allows the two displacement blocks 19 to move in opposite directions by rotating the handle 15, thereby inserting the limiting piece 23 into the connecting groove 5 and supporting and limiting the connecting protrusion 4 and the isolator body 1, thus completing the connection and installation without the need for additional parts and tools, which is convenient and quick. The first elastic member 12 and the second elastic member 24 can achieve a double shock absorption effect, preventing the isolator body 1 from being damaged by vibration when the robot moves.

[0038] The components, modules, mechanisms, and devices in this utility model that are not described in detail are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A low latency transmission based video isolator, characterized in that, The application relates to an isolator, which comprises an isolator body (1), a shock-absorbing seat (2) and a connecting plate (3), two connecting protrusions (4) are fixedly connected to the bottom wall of the isolator body (1), connecting grooves (5) are formed in the connecting protrusions (4), a power supply interface (6) and a low-delay video signal interface (7) are fixedly connected to the side wall of the isolator body (1), a mounting groove (9) and a transmission cavity (14) are formed in the shock-absorbing seat (2), a transmission groove (13) is formed in the bottom wall of the mounting groove (9), a buffer layer (10) is fixedly connected to the inner wall of the mounting groove (9), a shock-absorbing sheet (11) is connected to the bottom wall of the mounting groove (9) through a first elastic element (12), two displacement blocks (19) are slidably connected to the inner wall of the transmission groove (13), screw holes (20) are formed in the displacement blocks (19), an extension strip (21) is fixedly connected to the top wall of the displacement blocks (19), the upper end of the extension strip (21) extends to above the shock-absorbing seat (2), a connecting sheet (22) is fixedly connected to the upper end of the extension strip (21), second elastic elements (24) are fixedly connected to the top wall and the bottom wall of the connecting sheet (22), limiting sheets (23) are fixedly connected to the second elastic elements (24), the limiting sheets (23) are arranged in an inclined mode, a screw rod (18) is rotatably connected to the inner wall of the transmission groove (13), the screw rod (18) is screw-connected to the inner wall of the two screw holes (20), the screw rod (18) extends into the transmission cavity (14), a worm wheel (17) is fixedly connected to the screw rod (18), the worm wheel (17) is located in the transmission cavity (14), a worm (16) is rotatably connected to the inner wall of the transmission cavity (14), the worm (16) is engaged with the worm wheel (17), the upper end of the worm (16) extends to above the shock-absorbing seat (2), and a handle (15) is fixedly connected to the upper end of the worm (16).

2. A low latency transmission based video isolator as claimed in claim 1, wherein, The outer wall of the isolator body (1) is fixedly connected with an indicating lamp (8).

3. A low latency transmission based video isolator as claimed in claim 2, wherein, The outer wall of the isolator body (1) is fixedly connected with heat dissipation fins (27).

4. A low latency transmission based video isolator as claimed in claim 3, wherein, Mounting holes (25) are formed in the connecting plate (3), and bolts (26) pass through the mounting holes (25) to fixedly connect the connecting plate (3) to the body of a robot.

5. A low latency transmission based video isolator as claimed in any of claims 1 to 4, wherein, The isolator body (1) is internally provided with a signal isolation module.

6. A low latency transmission based video isolator as claimed in claim 5, wherein, The isolator body (1) is internally provided with a power supply isolation module.

7. A low latency transmission based video isolator as claimed in claim 6, wherein, The isolator body (1) is internally provided with a signal processing module.

8. A low latency transmission based video isolator as claimed in claim 7, wherein, The signal isolation module comprises an optoelectronic isolation unit and a magnetic coupling isolation unit.

9. A low latency transmission based video isolator as claimed in claim 8, wherein, The signal processing module comprises a low-delay decoding chip.

10. A low latency transmission based video isolator as claimed in claim 9, wherein, The material of the isolator body (1) comprises 304 stainless steel.

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