Radio and television engineering wireless coverage transmission box

Abstract

The invention relates to the technical field of wireless coverage transmission boxes, and discloses a radio and television engineering wireless coverage transmission box which comprises a box bottom shell, a lock catch is installed on one side of the box bottom shell, a box top shell is rotationally connected to the top of the box bottom shell, and a cooling assembly is arranged at the top of the box top shell. The cooling assembly is used for cooling heat generated by an electronic element, a supporting block is fixedly connected to the interior of the box bottom shell, a buffering assembly is arranged at the end, away from the box bottom shell, of the supporting block and used for buffering vibration force, and a clamping assembly is arranged in the middle of the box bottom shell. The double-end motor drives the fan to rotate, and when the fan rotates, external air is drawn to be blown into the box bottom shell and the box top shell, so that internal electronic elements can be conveniently cooled, and overheating and accelerated aging of the internal electronic elements caused by long-time working are prevented.

Description

Technical Field

[0001] The invention relates to the technical field of wireless coverage transmission boxes, in particular to a wireless coverage transmission box for broadcasting and television engineering. Background Art

[0002] The wireless coverage transmission box is one of the key equipment in radio and television engineering. It is mainly used to ensure the full coverage of radio and television signals and network signals. As an electronic information major, radio and television engineering is closely connected with electronic information technology, computer networks, communications and other fields. Therefore, an intelligent device is needed to ensure the stable transmission of signals. The design of the wireless coverage transmission box takes convenience and efficiency into consideration. It not only achieves wide-area coverage of signals, but also has powerful data transmission and network management functions. It can adapt to the network needs of different scenarios, such as remote villages, mountains, islands and other areas where signals are weak or difficult to wire.

[0003] The transmission box transmits the signal to the required coverage area wirelessly, ensuring the smooth operation of radio and television and other network equipment, and providing reliable technical support for public services and information dissemination. In radio and television projects, the wireless coverage transmission box not only improves the coverage breadth and stability of the signal, but also reduces the physical limitations of network laying, enabling radio and television content to cover a wider audience, providing a guarantee for seamless information transmission and real-time communication.

[0004] When the traditional radio and television engineering wireless coverage transmission box is used for a long time, the internal electronic components will continue to generate heat. However, due to the poor air circulation inside the box, the heat is difficult to dissipate in time, causing the internal temperature to gradually rise. The electronic components work in a high temperature environment, which is prone to accelerated aging and reduced performance and stability. In addition, excessively high temperatures can easily cause local short circuits, sparks, and increase the risk of fire. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a wireless coverage transmission box for broadcasting and television engineering, which solves the problem in the prior art that when the transmission box is used for a long time, the internal electronic components will continue to generate heat, causing the internal temperature to gradually increase.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a radio and television engineering wireless coverage transmission box, comprising a box bottom shell, a lock buckle is installed on one side of the box bottom shell, the top of the box bottom shell is rotatably connected to the box top shell, the top of the box top shell is provided with a cooling assembly, the cooling assembly is used to cool the heat generated by the electronic components, a support block is fixedly connected to the inside of the box bottom shell, a buffer assembly is provided at one end of the support block away from the box bottom shell, the buffer assembly is used to buffer the vibration force, and a clamping assembly is provided in the middle of the box bottom shell; The cooling assembly includes a ventilation duct, which is fixedly connected to the top of the box top shell, a support rod and a filter plate 1 are fixedly connected to the middle of the ventilation duct, an end of the support rod away from the ventilation duct is fixedly connected to a double-headed motor, one output end of the double-headed motor is fixedly connected to a fan, and the other output end of the double-headed motor is fixedly connected to a small gear, a connecting rod is fixedly connected to the top of the double-headed motor, a large gear is rotatably connected to the top of the connecting rod, the large gear and the small gear are meshed with each other, a universal joint is fixedly connected to the top of the large gear, and a rotating rod is fixedly connected to the end of the universal joint away from the large gear, and a cleaning assembly is provided on the top of the rotating rod, and the cleaning assembly is used to clean the surface of the filter plate 1.

[0007] Preferably, the cleaning assembly includes a connecting plate, the connecting plate is fixedly connected to the top of the rotating rod, the bottom of the connecting plate is fixedly connected to a spring rod, the bottom of the spring rod is fixedly connected to a scraper, and the scraper is in contact with the filter plate.

[0008] Preferably, the buffer assembly includes a buffer box, the buffer box is fixedly connected to one end of the support block, a movable plate is slidably connected to the middle of the buffer box, a sleeve shell 1 is fixedly connected to the bottom of the movable plate, a sleeve shell 2 is fixedly connected to the middle of the buffer box, a spring 1 is fixedly connected inside the sleeve shell 1, an end of the spring 1 away from the sleeve shell 1 is fixedly connected to a buffer plate 1, a connecting column is fixedly connected to the bottom of the buffer plate 1, a reset assembly is provided at the bottom of the connecting column, and the reset assembly is used to drive the connecting column to move upward.

[0009] Preferably, the reset assembly includes a second buffer plate, the second buffer plate is fixedly connected to the bottom of the connecting column, the second buffer plate is slidably connected to the middle of the second sleeve shell, and the bottom of the second buffer plate is fixedly connected to a second spring.

[0010] Preferably, the snap-on assembly includes a storage box, which is slidably connected to the middle part of the bottom shell of the box, a winding block is rotatably connected inside the storage box, a pull rope is fixedly connected to the middle part of the winding block, both ends of the pull rope are fixedly connected to a limiting plate, one side of the limiting plate is fixedly connected to a compression spring, and a clamping block is fixedly connected to the side of the limiting plate away from the compression spring, a clamping groove is opened inside the bottom shell of the box, the clamping block and the clamping groove are clamped together, and a connecting assembly is provided on one side of the winding block, and the connecting assembly is used to drive the winding block to rotate.

[0011] Preferably, the connecting assembly includes a moving rod, the moving rod is fixedly connected to one side of the winding block, the moving rod is rotatably connected to the middle of the storage box, and one end of the moving rod away from the winding block is fixedly connected to a knob.

[0012] Preferably, two of the clamping blocks are specifically provided, and both of the two clamping blocks are slidably connected to the middle of the storage box, and the two clamping blocks are used to clamp and fix the storage box and the bottom shell of the box.

[0013] Preferably, a telescopic rod and a spring three are fixedly connected to the bottom of the casing one, and the bottoms of the telescopic rod and the spring three are fixedly connected to the middle of the buffer box, and the telescopic rod and the spring three are used to drive the casing one to move upward and reset.

[0014] Preferably, a handle is rotatably connected to one side of the box bottom shell, and the handle is used by an operator to drive the box bottom shell for moving and transportation. Ventilation plates are fixedly connected to both sides of the box bottom shell, and the ventilation plates are used to ventilate and dissipate heat for electronic components.

[0015] The present invention provides a wireless coverage transmission box for radio and television engineering, which has the following beneficial effects: 1. The present invention drives the fan to rotate through a double-headed motor, and when the fan rotates, it draws external air to blow to the inside of the bottom shell and the top shell of the box, so as to facilitate the heat dissipation of the internal electronic components, and prevent the internal electronic components from overheating and accelerated aging when working for a long time. At the same time, the dust in the air can be filtered through the action of the filter plate 1, thereby preventing the dust in the air from affecting the electronic components.

[0016] 2. The present invention can buffer the vibration force generated by the electronic components when they are transported or placed through the action of spring one and spring two, thereby increasing the service life of the electronic components. At the same time, through the action of the telescopic rod and spring three, the vibration force can be further buffered, thereby avoiding damage to the electronic components due to the vibration force.

[0017] 3. The present invention increases the internal storage space of the bottom shell of the box through the action of the storage box, and the required maintenance tools or other electronic components can be placed in the middle of the storage box. At the same time, the storage box and the bottom shell of the box can be connected and locked through the action of the card block and the card slot, thereby preventing the storage box from falling when the electronic components are transported, thereby reducing the labor intensity of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention; Figure 2 is a schematic diagram of a ventilation plate of the present invention; Figure 3 It is a schematic diagram of the double-headed motor of the present invention; Figure 4 It is a schematic diagram of the second housing of the present invention; Figure 5 It is a schematic diagram of the buffer plate 2 of the present invention; Figure 6 is a schematic diagram of a card slot of the present invention; Figure 7 It is a schematic diagram of the card block of the present invention; Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0019] The following are the parts: 1. bottom shell; 2. top shell; 3. ventilation duct; 4. ventilation plate; 5. lock; 6. handle; 7. support block; 8. buffer box; 9. support rod; 10. double-head motor; 11. fan; 12. small gear; 13. connecting rod; 14. large gear; 15. universal joint; 16. rotating rod; 17. connecting plate; 18. spring rod; 19. scraper; 20. movable plate; 21. casing one; 22. casing two; 23. telescopic rod; 24. spring one; 25. buffer plate one; 26. connecting column; 27. buffer plate two; 28. spring two; 29. ​​spring three; 30. storage box; 31. block; 32. slot; 33. knob; 34. limit plate; 35. compression spring; 36. pull rope; 37. winding block; 38. moving rod; 39. filter plate one. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0021] Please refer to the attached Figure 1 , Attachment Figure 2 and attached Figure 6 The embodiment of the present invention provides a wireless coverage transmission box for a radio and television engineering project, including a box bottom shell 1, a lock buckle 5 is installed on one side of the box bottom shell 1, a box top shell 2 is rotatably connected to the top of the box bottom shell 1, a cooling component is provided on the top of the box top shell 2, and the cooling component is used to cool the heat generated by the electronic components. A support block 7 is fixedly connected to the inside of the box bottom shell 1, and a buffer component is provided at one end of the support block 7 away from the box bottom shell 1, and the buffer component is used to buffer the vibration force. A snap-on component is provided in the middle of the box bottom shell 1.

[0022] The lock buckle 5 can conveniently connect and fix the bottom shell 1 and the top shell 2 of the box, so that it is convenient for operators to carry electronic components. The support block 7 can conveniently support and fix the buffer assembly and the electronic components, so that the buffer assembly and the electronic components are more stable.

[0023] Please refer to the attached Figure 1 -Attached Figure 3The cooling component includes a ventilation pipe 3, which is fixedly connected to the top of the box top shell 2. A support rod 9 and a filter plate 39 are fixedly connected to the middle of the ventilation pipe 3. The end of the support rod 9 away from the ventilation pipe 3 is fixedly connected to a double-headed motor 10, one output end of the double-headed motor 10 is fixedly connected to a fan 11, and the other output end of the double-headed motor 10 is fixedly connected to a pinion 12. A connecting rod 13 is fixedly connected to the top of the double-headed motor 10, and a large gear 14 is rotatably connected to the top of the connecting rod 13. The large gear 14 and the small gear 12 are meshed with each other. A universal joint 15 is fixedly connected to the top of the large gear 14, and a rotating rod 16 is fixedly connected to the end of the universal joint 15 away from the large gear 14. A cleaning component is provided on the top of the rotating rod 16, and the cleaning component is used to clean the surface of the filter plate 39.

[0024] The ventilation pipe 3 can conveniently support the support rod 9, and the support rod 9 can conveniently support and fix the double-headed motor 10, so that the double-headed motor 10 is more stable when working. When the double-headed motor 10 is working, it can conveniently drive the fan 11 and the pinion 12 to rotate at the same time, and when the fan 11 rotates, it will draw external air to blow to the surface of the electronic components for heat dissipation, preventing the internal electronic components from overheating and accelerated aging when working for a long time. At the same time, the dust in the air can be filtered through the action of the filter plate 39, thereby preventing the dust in the air from affecting the electronic components.

[0025] Please refer to the attached Figure 3 The cleaning assembly includes a connecting plate 17, which is fixedly connected to the top of the rotating rod 16. A spring rod 18 is fixedly connected to the bottom of the connecting plate 17. A scraper 19 is fixedly connected to the bottom of the spring rod 18. The scraper 19 is in contact with a filter plate 39.

[0026] When the small gear 12 rotates, it will drive the large gear 14 to mesh and rotate. When the large gear 14 rotates, it can easily drive the rotating rod 16 to rotate at the same time through the universal joint 15. When the rotating rod 16 rotates, it will drive the connecting plate 17 to rotate. When the connecting plate 17 rotates, it will drive the scraper 19 to move at the same time through multiple spring rods 18. Then, under the action of the scraper 19, the surface of the filter plate 39 can be cleaned, preventing the filter plate 39 from being blocked when working for a long time, and under the action of the spring rod 18, the scraper 19 can be more closely attached to the surface of the filter plate 39.

[0027] Please refer to the attached Figure 4 and attached Figure 5The buffer assembly includes a buffer box 8, which is fixedly connected to one end of the support block 7, a movable plate 20 is slidably connected to the middle of the buffer box 8, a casing 21 is fixedly connected to the bottom of the movable plate 20, a casing 22 is fixedly connected to the middle of the buffer box 8, a spring 24 is fixedly connected inside the casing 21, a buffer plate 25 is fixedly connected to the end of the spring 24 away from the casing 21, a connecting column 26 is fixedly connected to the bottom of the buffer plate 25, a reset assembly is provided at the bottom of the connecting column 26, and the reset assembly is used to drive the connecting column 26 to move upward. The reset assembly includes a buffer plate 27, which is fixedly connected to the bottom of the connecting column 26, and the buffer plate 27 is slidably connected to the middle of the casing 22, and a spring 28 is fixedly connected to the bottom of the buffer plate 27.

[0028] The support block 7 can conveniently support and fix the buffer box 8. When the movable plate 20 moves downward, it will squeeze the shell 21, and the shell 21 will squeeze the spring 24 at the same time when it is squeezed. Under the action of the spring 24, the shell 21 can be conveniently pushed out and reset upward. When the spring 24 moves downward, it will drive the connecting column 26 to move downward at the same time through the buffer plate 25. When the connecting column 26 moves downward, it will drive the buffer plate 27 to move downward, and when the buffer plate 27 moves downward, it will squeeze the spring 28. Therefore, under the action of the spring 28 and the spring 1, the vibration force generated by the electronic components during transportation or placement can be conveniently buffered, thereby improving the service life of the electronic components.

[0029] Please see attached Figure 6 -Attached Figure 8 The clamping assembly includes a storage box 30, which is slidably connected to the middle part of the bottom shell 1 of the box. A winding block 37 is rotatably connected inside the storage box 30. A pull rope 36 is fixedly connected to the middle part of the winding block 37. Both ends of the pull rope 36 are fixedly connected to a limit plate 34. A compression spring 35 is fixedly connected to one side of the limit plate 34. A clamping block 31 is fixedly connected to the side of the limit plate 34 away from the compression spring 35. A clamping groove 32 is opened inside the bottom shell 1 of the box. The clamping block 31 and the clamping groove 32 are clamped together. A connecting assembly is provided on one side of the winding block 37, and the connecting assembly is used to drive the winding block 37 to rotate.

[0030] The storage box 30 can conveniently increase the storage space inside the bottom shell 1, and the required maintenance tools or other electronic components can be placed in the middle of the storage box 30. When the winding block 37 rotates, it will drive the pull rope 36 to move, and the pull rope 36 can be conveniently wound up. When the pull rope 36 moves, it will pull the limit plate 34 to move, and when the limit plate 34 moves, it will squeeze the compression spring 35. Under the action of the compression spring 35, the limit plate 34 can be conveniently ejected and reset. When the limit plate 34 squeezes the compression spring 35, it will drive the card block 31 to move, so that the card block 31 is separated from the card slot 32. After the card block 31 is separated from the card slot 32, the bottom shell 1 and the storage box 30 can be conveniently separated, and under the action of the card block 31 and the card slot 32, the bottom shell 1 and the storage box 30 can be conveniently connected and fixed.

[0031] Please see attached Figure 8 The connecting assembly includes a moving rod 38, which is fixedly connected to one side of the winding block 37, and the moving rod 38 is rotatably connected to the middle of the storage box 30. The end of the moving rod 38 away from the winding block 37 is fixedly connected to the knob 33.

[0032] When the moving rod 38 is rotated, the winding block 37 can be easily driven to rotate at the same time. When the knob 33 is manually driven to rotate, the moving rod 38 can be easily driven to rotate at the same time, so that the operator can work conveniently.

[0033] Please see attached Figure 3 , Attachment Figure 5 and attached Figure 7 Specifically, two card blocks 31 are provided, and both card blocks 31 are slidably connected to the middle part of the storage box 30. The two card blocks 31 are used to clamp and fix the storage box 30 and the bottom shell 1. The bottom of the sleeve shell 21 is fixedly connected with a telescopic rod 23 and a spring three 29. The bottoms of the telescopic rod 23 and the spring three 29 are fixedly connected to the middle part of the buffer box 8. The telescopic rod 23 and the spring three 29 are used to drive the sleeve shell 21 to move upward and reset.

[0034] The two blocks 31 can make the storage box 30 and the bottom shell 1 connected more firmly. At the same time, under the action of the telescopic rod 23 and the spring three 29, the sleeve shell 21 can be easily limited and the sleeve shell 21 can be easily ejected and reset.

[0035] Please see attached Figure 1 A handle 6 is rotatably connected to one side of the bottom shell 1, and the handle 6 is used by the operator to drive the bottom shell 1 to move and transport. Ventilation plates 4 are fixedly connected to both sides of the bottom shell 1, and the ventilation plates 4 are used to ventilate and dissipate heat for electronic components.

[0036] The handle 6 can facilitate the operator to move the bottom shell 1 for transportation, and the ventilation plate 4 can conveniently discharge the heat generated by the electronic components during operation, thereby increasing the service life of the electronic components.

[0037] Working principle: when the inside of the bottom shell 1 and the top shell 2 are to be cooled, the double-headed motor 10 is started. When the double-headed motor 10 is working, it will drive the fan 11 and the small gear 12 to rotate at the same time. When the fan 11 rotates, it will draw external air to blow to the inside of the bottom shell 1 and the top shell 2. When the small gear 12 rotates, it will drive the large gear 14 to mesh and rotate. When the large gear 14 rotates, it will drive the rotating rod 16 to rotate at the same time through the universal joint 15. When the rotating rod 16 rotates, it will drive the spring rod 18 to move through the connecting plate 17. When the spring rod 18 moves, it will drive the scraper 19 to move, so that the surface of the filter plate 39 can be cleaned.

[0038] When buffering the vibration force generated by transportation or placement, the movable plate 20 will drive the shell 1 21 to move downward, and when the shell 1 21 moves downward, it will squeeze the spring 1 24. When the spring 1 24 is squeezed, it will drive the buffer plate 1 25 to move. When the buffer plate 1 25 moves, it will drive the buffer plate 2 27 to move downward at the same time through the connecting column 26. When the buffer plate 27 moves downward, it will squeeze the spring 28, so that under the action of the spring 28 and the spring 1 24, the vibration force generated during mobile transportation or placement can be buffered.

[0039] When the storage box 30 needs to be taken out or installed, the knob 33 is manually driven to rotate. When the knob 33 is rotated, the winding block 37 is driven to rotate at the same time through the moving rod 38. When the winding block 37 rotates, it drives the pull rope 36 to move. When the pull rope 36 moves, it pulls the limit plate 34 to squeeze the compression spring 35. When the limit plate 34 squeezes the compression spring 35, it drives the block 31 to move, so that the block 31 is disengaged from the slot 32. When the block 31 is disengaged from the slot 32, the bottom shell 1 and the storage box 30 can be separated, and the storage box 30 can be easily installed.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A radio and television engineering wireless coverage transmission box, comprising a box bottom shell (1), characterized in that: A lock buckle (5) is installed on one side of the bottom shell (1); the top of the bottom shell (1) is rotatably connected to the top shell (2); a cooling assembly is provided on the top of the top shell (2); the cooling assembly is used to cool the heat generated by the electronic components; a support block (7) is fixedly connected inside the bottom shell (1); a buffer assembly is provided at one end of the support block (7) away from the bottom shell (1); the buffer assembly is used to buffer the vibration force; and a snap-on assembly is provided in the middle of the bottom shell (1); The cooling assembly comprises a ventilation pipe (3), wherein the ventilation pipe (3) is fixedly connected to the top of the box top shell (2), a support rod (9) and a filter plate (39) are fixedly connected to the middle of the ventilation pipe (3), an end of the support rod (9) away from the ventilation pipe (3) is fixedly connected to a double-headed motor (10), one output end of the double-headed motor (10) is fixedly connected to a fan (11), and the other output end of the double-headed motor (10) is fixedly connected to a pinion (12), a connecting rod (13) is fixedly connected to the top of the double-headed motor (10), a large gear (14) is rotatably connected to the top of the connecting rod (13), the large gear (14) and the small gear (12) are meshed with each other, a universal joint (15) is fixedly connected to the top of the large gear (14), and a rotating rod (16) is fixedly connected to the end of the universal joint (15) away from the large gear (14), and a cleaning assembly is provided on the top of the rotating rod (16), and the cleaning assembly is used to clean the surface of the filter plate (39).

2. A radio and television engineering wireless coverage transmission box according to claim 1, characterized in that: The cleaning assembly comprises a connecting plate (17), wherein the connecting plate (17) is fixedly connected to the top of the rotating rod (16), a spring rod (18) is fixedly connected to the bottom of the connecting plate (17), a scraper (19) is fixedly connected to the bottom of the spring rod (18), and the scraper (19) is in contact with the filter plate 1 (39).

3. A radio and television engineering wireless coverage transmission box according to claim 1, characterized in that: The buffer assembly comprises a buffer box (8), the buffer box (8) being fixedly connected to one end of the support block (7), a movable plate (20) being slidably connected to the middle of the buffer box (8), a sleeve shell (21) being fixedly connected to the bottom of the movable plate (20), a sleeve shell (22) being fixedly connected to the middle of the buffer box (8), a spring (24) being fixedly connected inside the sleeve shell (21), a buffer plate (25) being fixedly connected to one end of the spring (24) away from the sleeve shell (21), a connecting column (26) being fixedly connected to the bottom of the buffer plate (25), a reset assembly being provided at the bottom of the connecting column (26), the reset assembly being used to drive the connecting column (26) to move upward.

4. A radio and television engineering wireless coverage transmission box according to claim 3, characterized in that: The reset assembly comprises a second buffer plate (27), the second buffer plate (27) is fixedly connected to the bottom of the connecting column (26), the second buffer plate (27) is slidably connected to the middle of the second sleeve shell (22), and the bottom of the second buffer plate (27) is fixedly connected to a second spring (28).

5. The wireless coverage transmission box for broadcasting and television engineering according to claim 1 is characterized in that: The snap-on assembly comprises a storage box (30), the storage box (30) being slidably connected to the middle part of the box bottom shell (1), a winding block (37) being rotatably connected inside the storage box (30), a pull rope (36) being fixedly connected to the middle part of the winding block (37), both ends of the pull rope (36) being fixedly connected to a limit plate (34), one side of the limit plate (34) being fixedly connected to a compression spring (35), a side of the limit plate (34) away from the compression spring (35) being fixedly connected to a clamping block (31), a clamping slot (32) being provided inside the box bottom shell (1), the clamping block (31) being clamped to the clamping slot (32), and a connecting assembly being provided on one side of the winding block (37), the connecting assembly being used to drive the winding block (37) to rotate.

6. A radio and television engineering wireless coverage transmission box according to claim 5, characterized in that: The connecting assembly comprises a moving rod (38), wherein the moving rod (38) is fixedly connected to one side of the winding block (37), the moving rod (38) is rotatably connected to the middle part of the storage box (30), and one end of the moving rod (38) away from the winding block (37) is fixedly connected to a knob (33).

7. The wireless coverage transmission box for broadcasting and television engineering according to claim 5 is characterized in that: Specifically, two of the clamping blocks (31) are provided, and both of the two clamping blocks (31) are slidably connected to the middle of the storage box (30). The two clamping blocks (31) are used to clamp and fix the storage box (30) and the bottom shell (1).

8. The radio and television engineering wireless coverage transmission box according to claim 3 is characterized in that: A telescopic rod (23) and a spring three (29) are fixedly connected to the bottom of the sleeve shell one (21); the bottoms of the telescopic rod (23) and the spring three (29) are fixedly connected to the middle of the buffer box (8); the telescopic rod (23) and the spring three (29) are used to drive the sleeve shell one (21) to move upward and reset.

9. The wireless coverage transmission box for broadcasting and television engineering according to claim 1, characterized in that: A handle (6) is rotatably connected to one side of the box bottom shell (1), and the handle (6) is used by an operator to drive the box bottom shell (1) for moving and transporting. Ventilation plates (4) are fixedly connected to both sides of the box bottom shell (1), and the ventilation plates (4) are used to ventilate and dissipate heat for electronic components.

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