Switching knife switch device of medium wave transmitter

Abstract

The utility model provides a switching knife switch device of a medium-wave transmitter, which relates to the technical field of medium-wave transmitters and comprises a bottom plate, a driving switching mechanism is arranged above the bottom plate and comprises a driving rod, a rotating rod rotatably connected to the upper surface of the bottom plate and an electric push rod fixedly connected to the upper surface of the bottom plate, the top end of the rotating rod is fixedly connected with a disconnecting link support, the outer surface of the rotating rod is fixedly connected with a swing frame, the outer surface of the driving rod is fixedly connected with two symmetrical circular blocks, and the two circular blocks are slidably connected to the inner wall of the swing frame. According to the switching knife switch device of the medium-wave transmitter, through the arrangement of the driving switching mechanism and the dismounting assembly, switching between a manual mode and an automatic mode can be achieved, the situation that the state of the medium-wave transmitter cannot be switched when an electric push rod is damaged is avoided, meanwhile, the switching mode is converted into the manual mode, the device can be used more flexibly, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to a switching knife switch device of a medium wave transmitter, in particular to a switching knife switch device of a medium wave transmitter, belonging to the technical field of medium wave transmitters. Background Art

[0002] Medium wave transmitters play an important role in the broadcast transmission process. Their stability and reliability are crucial to the entire broadcast system. Switching switches are used to switch the status between the final matching stage of the medium wave transmitter and the antenna adjustment network. The switching switch is a key device to ensure the efficient and safe operation of the broadcast transmission system.

[0003] A switching switch for a medium wave transmitter is disclosed in Chinese patent application publication CN206226408U. The device is used to implement mode switching in a medium wave parallel network. When a dual-frequency medium wave transmitter performs frequency switching, the matching state is switched to change the technical parameters of the inductor and capacitor to achieve the matching purpose.

[0004] However, during the implementation of the technical solution of the above patent, the switching switch cannot be converted from automatic mode to manual mode. When the medium wave transmitter is in use, the state of the final matching and the antenna adjustment network will be switched by the switching switch. Most of the existing switching switches are in automatic mode, and the state switching is achieved by automatically controlling the movement of the switch. When the automatic control device is damaged or manual operation is required to switch the state, the switching switch cannot be used, resulting in the inability to switch the state of the medium wave transmitter, which is not flexible enough. Utility Model Content

[0005] The purpose of the present invention is to provide a switching switch device for a medium wave transmitter in order to solve the above problems, so as to solve the problem that the switching switch in the prior art cannot be converted between manual mode and automatic mode, resulting in inflexible use.

[0006] The utility model is implemented through the following technical solutions: a switching knife switch device for a medium wave transmitter, comprising a base plate, a drive conversion mechanism provided above the base plate, the drive conversion mechanism comprising a drive rod, a rotating rod rotatably connected to the upper surface of the base plate, and an electric push rod fixedly connected to the upper surface of the base plate, the top end of the rotating rod being fixedly connected to a knife switch support, the outer surface of the rotating rod being fixedly connected to a swing frame, the outer surface of the driving rod being fixedly connected to two symmetrical circular blocks, both of which being slidably connected to the inner wall of the swing frame;

[0007] The telescopic end of the electric push rod is fixedly connected to a slide rail frame, the inner wall of the slide rail frame is slidably connected to an anti-slip slider, the upper surface of the anti-slip slider is fixedly connected to a moving plate, the inner wall of the moving plate is slidably connected to a limit rod, and the limit rod is adapted to the driving rod;

[0008] Four disassembly components are arranged above the bottom plate. The disassembly components include a mounting seat and two contact seats. Both of the two contact seats are adapted to the knife switch support.

[0009] Preferably, the top of the limit rod is fixedly connected to a first operating plate, the bottom surface of the first operating plate is fixedly connected to a first spring, and the bottom end of the first spring is fixedly connected to the upper surface of the movable plate. The setting of the first spring can prevent the limit rod from being non-humanly detached from the driving rod.

[0010] Furthermore, the outer surface of the driving rod is slidably connected to a guide seat, and the guide seat is fixedly connected to the upper surface of the base plate, and the guide seat serves as a guide for the movement of the driving rod.

[0011] Preferably, the two contact seats are fixedly connected to a mounting block on one side close to the mounting seat, and the two mounting blocks are adapted to the mounting seat. The inner wall of the mounting seat is slidably connected to two limit plates, and the two limit plates pass through the mounting seat and are slidably connected to the mounting seat. The two limit plates are respectively adapted to the two mounting blocks, and the limit plates are inserted into the mounting blocks to fix the mounting blocks in the mounting seats.

[0012] Furthermore, the outer surfaces of the two limit plates are fixedly connected to the second operating plates, the outer surfaces of the two second operating plates are fixedly connected to two second springs, and the ends of the four second springs away from the second operating plates are fixedly connected to the outer surface of the mounting seat. The arrangement of the second springs can prevent the limit plates from being unintentionally detached from the mounting block.

[0013] Preferably, a U-shaped fixing frame is fixedly connected to the upper surface of the bottom plate, the rotating rod passes through the U-shaped fixing frame and is rotatably connected to the U-shaped fixing frame, and the U-shaped fixing frame plays an auxiliary supporting role for the rotation of the rotating rod.

[0014] The upper surface of the U-shaped fixing frame is fixedly connected to two fixing blocks, and the mounting seat is fixedly connected to the outer surface of the fixing block. The U-shaped fixing frame and the fixing block play a supporting and fixing role for the mounting seat.

[0015] The utility model provides a switching switch device for a medium wave transmitter, which has the following beneficial effects:

[0016] 1. The switching switch device of the medium wave transmitter can switch between manual mode and automatic mode by driving the conversion mechanism and the disassembly component, so as to avoid the medium wave transmitter state being unable to switch when the electric push rod is damaged. At the same time, converting the switching mode to manual can make the device more flexible to use and has a wider range of applications.

[0017] 2. The switching switch device of the medium wave transmitter is set by disassembling the components, pulling the second operating plate outward to pull the limit plate out of the mounting block. At this time, the mounting block can be removed from the mounting seat and the contact seat can be replaced, thereby realizing rapid replacement of the contact seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the rotating rod and the driving rod of the utility model;

[0020] Figure 3 This is a schematic diagram of the separate structure of the slide rail frame, the anti-drop slider and the limit rod of the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the mounting seat and the contact seat of the utility model;

[0022] Figure 5 This is a schematic diagram of the separate structure of the mounting seat, mounting block and limiting plate of the utility model.

[0023] Description of Reference Numerals

[0024] 1. Bottom plate;

[0025] 2. Drive conversion mechanism; 21. Rotating rod; 22. Knife switch support; 23. Drive rod; 24. Swing frame; 25. Round block; 26. Moving plate; 27. Limiting rod; 28. Electric push rod; 29. ​​Slide rail; 210. Anti-slip slider; 211. First spring; 212. First operating panel; 213. Guide seat;

[0026] 3. Disassembly assembly; 31. Mounting seat; 32. Contact seat; 33. Mounting block; 34. Limiting plate; 35. Second operating plate; 36. Second spring;

[0027] 4. U-shaped fixing bracket; 5. Fixing block. DETAILED DESCRIPTION

[0028] An embodiment of the utility model provides a switching switch device for a medium wave transmitter.

[0029] Please refer to Figure 1 、 Figure 2 and Figure 3, including a base plate 1, a drive conversion mechanism 2 is arranged above the base plate 1, the drive conversion mechanism 2 includes a drive rod 23, a rotating rod 21 rotatably connected to the upper surface of the base plate 1 and an electric push rod 28 fixedly connected to the upper surface of the base plate 1, the top of the rotating rod 21 is fixedly connected to the knife gate support 22, the outer surface of the rotating rod 21 is fixedly connected to the swing frame 24, the outer surface of the driving rod 23 is fixedly connected to two symmetrical circular blocks 25, the two circular blocks 25 are both slidably connected to the inner wall of the swing frame 24, and when the driving rod 23 moves, it can push the swing frame 24 to swing through the circular blocks 25.

[0030] The telescopic end of the electric push rod 28 is fixedly connected to the slide rail frame 29, and the inner wall of the slide rail frame 29 is slidably connected to the anti-slip slider 210. The upper surface of the anti-slip slider 210 is fixedly connected to the movable plate 26, and the inner wall of the movable plate 26 is slidably connected to the limit rod 27. The limit rod 27 is provided with an inclined surface, and the edge of the driving rod 23 is provided with an inclined surface. When the limit rod 27 moves, the inclined surface of the limit rod 27 cooperates with the inclined surface at the edge of the driving rod 23 to push the limit rod 27 to move upward. The limit rod 27 is adapted to the driving rod 23, and a limiting hole adapted to the limit rod 27 is opened on the driving rod 23. Inserting the limit rod 27 into the limiting hole of the driving rod 23 can connect and fix the driving rod 23 and the limit rod 27.

[0031] The top of the limiting rod 27 is fixedly connected to the first operating plate 212, the bottom surface of the first operating plate 212 is fixedly connected to the first spring 211, and the bottom end of the first spring 211 is fixedly connected to the upper surface of the movable plate 26. The setting of the first spring 211 can prevent the limiting rod 27 from being unintentionally separated from the driving rod 23. When the limiting rod 27 is inserted into the driving rod 23, the first spring 211 is in a stretched state.

[0032] The outer surface of the driving rod 23 is slidably connected to a guide seat 213 . The guide seat 213 is fixedly connected to the upper surface of the base plate 1 . The guide seat 213 serves as a guide for the movement of the driving rod 23 .

[0033] Please refer to Figure 1 、 Figure 4 and Figure 5 Four disassembly components 3 are set above the base plate 1. The disassembly components 3 include a mounting seat 31 and two contact seats 32. The two contact seats 32 are both compatible with the knife switch support 22. The knife body on the knife switch support 22 can cut into the contact seat 32. By rotating the knife switch support 22, the knife switch support 22 can cut into different contact seats 32, thereby switching the state between the final stage matching of the medium wave transmitter and the antenna matching network.

[0034] The two contact seats 32 are fixedly connected to a mounting block 33 on one side close to the mounting seat 31. The two mounting blocks 33 are both adapted to the mounting seat 31. The inner wall of the mounting seat 31 is slidably connected to two limit plates 34. The two limit plates 34 pass through the mounting seat 31 and are slidably connected to the mounting seat 31. The two limit plates 34 are respectively adapted to the two mounting blocks 33. The limit plates 34 are inserted into the mounting blocks 33 to fix the mounting blocks 33 in the mounting seat 31.

[0035] The outer surfaces of the two limit plates 34 are fixedly connected to the second operating plates 35, and the outer surfaces of the two second operating plates 35 are fixedly connected to two second springs 36. The ends of the four second springs 36 away from the second operating plates 35 are fixedly connected to the outer surface of the mounting seat 31. The arrangement of the second springs 36 can prevent the limit plates 34 from being unintentionally separated from the mounting block 33. When the limit plates 34 are inserted into the mounting block 33, the second springs 36 are in a stretched state.

[0036] Please refer to Figure 1 and Figure 4 The upper surface of the base plate 1 is fixedly connected with a U-shaped fixing frame 4, the rotating rod 21 passes through the U-shaped fixing frame 4 and is rotatably connected to the U-shaped fixing frame 4, and the U-shaped fixing frame 4 plays an auxiliary supporting role for the rotation of the rotating rod 21.

[0037] The upper surface of the U-shaped fixing frame 4 is fixedly connected to two fixing blocks 5 , and the mounting seat 31 is fixedly connected to the outer surface of the fixing block 5 . The U-shaped fixing frame 4 and the fixing block 5 support and fix the mounting seat 31 .

[0038] Working principle: When the limit rod 27 is inserted into the driving rod 23, it is in automatic mode. By controlling the extension and retraction of the electric push rod 28, the driving rod 23 is driven to move through the slide rail frame 29, the movable plate 26 and the limit rod 27, thereby pushing the swing frame 24 to swing through the circular block 25, and driving the rotating rod 21 and the knife switch support 22 to rotate, and the knife body of the knife switch support 22 is inserted into different contact seats 32, thereby switching the state between the final matching of the medium wave transmitter and the antenna matching network;

[0039] Pull the first operating plate 212 upward to pull the limit rod 27 out of the driving rod 23. At this time, the first spring 211 is stretched, and then the movable plate 26 is pushed toward the first operating plate 212 close to the anti-detachment slider 210. At this time, the state of the medium wave transmitter can be switched by manually pushing the driving rod 23, thereby converting to manual mode. The device can be switched between manual mode and automatic mode, so that the device can be used more flexibly and has a wider range of applications.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A switching switch device for a medium wave transmitter, comprising a base plate (1), characterized in that: A drive conversion mechanism (2) is provided above the base plate (1), the drive conversion mechanism (2) comprising a drive rod (23), a rotating rod (21) rotatably connected to the upper surface of the base plate (1), and an electric push rod (28) fixedly connected to the upper surface of the base plate (1); the top end of the rotating rod (21) is fixedly connected to a knife gate support (22); the outer surface of the rotating rod (21) is fixedly connected to a swing frame (24); the outer surface of the driving rod (23) is fixedly connected to two symmetrical circular blocks (25); the two circular blocks (25) are both slidably connected to the inner wall of the swing frame (24); The telescopic end of the electric push rod (28) is fixedly connected to a slide rail frame (29), the inner wall of the slide rail frame (29) is slidably connected to an anti-slip slider (210), the upper surface of the anti-slip slider (210) is fixedly connected to a moving plate (26), the inner wall of the moving plate (26) is slidably connected to a limiting rod (27), and the limiting rod (27) is adapted to the driving rod (23); Four disassembly assemblies (3) are arranged above the base plate (1), and the disassembly assemblies (3) include a mounting seat (31) and two contact seats (32), and the two contact seats (32) are both adapted to the knife switch support (22).

2. The switching switch device of a medium wave transmitter according to claim 1, characterized in that: The top end of the limiting rod (27) is fixedly connected to a first operating plate (212), the bottom surface of the first operating plate (212) is fixedly connected to a first spring (211), and the bottom end of the first spring (211) is fixedly connected to the upper surface of the moving plate (26).

3. The switching switch device for a medium wave transmitter according to claim 1, characterized in that: The outer surface of the driving rod (23) is slidably connected to a guide seat (213), and the guide seat (213) is fixedly connected to the upper surface of the bottom plate (1).

4. The switching switch device for a medium wave transmitter according to claim 1, characterized in that: The two contact seats (32) are fixedly connected to a mounting block (33) on one side close to the mounting seat (31), and the two mounting blocks (33) are adapted to the mounting seat (31). The inner wall of the mounting seat (31) is slidably connected to two limiting plates (34), and the two limiting plates (34) pass through the mounting seat (31) and are slidably connected to the mounting seat (31). The two limiting plates (34) are adapted to the two mounting blocks (33) respectively.

5. The switching switch device of a medium wave transmitter according to claim 4, characterized in that: The outer surfaces of the two limiting plates (34) are fixedly connected to a second operating plate (35), the outer surfaces of the two second operating plates (35) are fixedly connected to two second springs (36), and one end of the four second springs (36) away from the second operating plate (35) is fixedly connected to the outer surface of the mounting seat (31).

6. The switching switch device for a medium wave transmitter according to claim 1, characterized in that: The upper surface of the bottom plate (1) is fixedly connected to a U-shaped fixing frame (4), and the rotating rod (21) passes through the U-shaped fixing frame (4) and is rotatably connected to the U-shaped fixing frame (4).

7. The switching switch device of a medium wave transmitter according to claim 6, characterized in that: Two fixing blocks (5) are fixedly connected to the upper surface of the U-shaped fixing frame (4), and the mounting seat (31) is fixedly connected to the outer surface of the fixing block (5).

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