Change-over switch of medium wave transmitter

Abstract

The utility model provides a change-over switch of a medium-wave transmitter, which relates to the technical field of change-over switches of medium-wave transmitters and comprises a mounting base, symmetrical fixing plates I are arranged above the mounting base, symmetrical mounting plates are fixedly connected to the outer surfaces of the two fixing plates I, and the mounting plates are fixedly connected to the outer surfaces of the fixing plates II. Symmetrical second fixing plates are fixedly connected to the outer surfaces of the two mounting plates. According to the change-over switch of the medium wave transmitter, through cooperative arrangement of the mounting base, the first fixing plate, the mounting plate, the second fixing plate and the quick release mechanism, people can quickly detach the contact seat body to maintain the contact spring fixed on the inner wall of the contact seat body, so that the working efficiency of people during maintenance is improved; and moreover, the condition that people are relatively difficult to disassemble due to corrosion of the screws is avoided, and the maintenance difficulty of people on the contact spring fixed on the inner wall of the contact seat body is effectively reduced.

Description

Technical Field

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

[0002] As one of the mainstream transmitter types for AM broadcasting, high-power medium-wave AM transmitters are responsible for important tasks such as program coverage and electronic countermeasures. When the transmitter is required to operate at multiple power levels, a switch must be added to the parallel network to achieve mode switching. Or, when switching frequencies in a dual-frequency state, a switch that can withstand high-frequency voltage and high-frequency current must be used.

[0003] According to a switching switch for a medium wave transmitter disclosed in patent number CN206226408U, it is mainly used for the state conversion of the final matching or antenna matching network of a high-power medium wave transmitter under high frequency, high voltage and high current conditions. When a dual-frequency medium wave transmitter performs frequency switching, the matching state is switched to realize the change of inductor and capacitor technical parameters to achieve the matching purpose.

[0004] If the working environment of the switching switch is harsh, such as the presence of adverse factors such as high temperature, high humidity, strong electromagnetic interference, or the equipment is running at high load for a long time, the spring sheet in the contact seat may be severely worn or corroded, resulting in its performance degradation. At this time, the contact seat needs to be removed for maintenance. However, in the above-mentioned patent, the contact seat is fixed with screws, which makes it difficult for people to remove it quickly, thereby reducing the efficiency of people's maintenance. At the same time, the screws are very likely to rust in a high humidity environment, which makes it difficult for people to disassemble the contact seat, increasing the difficulty of people's maintenance of the contact seat. Utility Model Content

[0005] The utility model provides a switching switch for a medium wave transmitter, so as to solve the problems in the prior art that people cannot quickly disassemble a contact seat and that it is difficult for people to disassemble the contact seat.

[0006] The utility model is implemented through the following technical solutions: a switching switch for a medium wave transmitter, comprising a mounting base, a symmetrical fixing plate 1 being provided above the mounting base, the outer surfaces of two fixing plates 1 being fixedly connected to symmetrical mounting plates, the outer surfaces of two mounting plates being fixedly connected to symmetrical fixing plates 2, the outer surfaces of two mounting plates being provided with symmetrical quick-release mechanisms, the quick-release mechanisms comprising a fixing cylinder, two mounting pads, and two contact seats, the inner wall of the fixing cylinder being slidably connected to a connecting column, one end of the connecting column being fixedly connected to a spring, and the spring being fixedly connected to the outer surface of the mounting plate;

[0007] The other end of the connecting column is fixedly connected to the driving plate, the sides of the two mounting pads close to each other are fixedly connected to the fixing column, the ends of the two fixing columns close to each other are fixedly connected to the fixing balls, the inner walls of the two mounting pads are slidably connected to the guide rods, and the ends of the two guide rods away from each other are fixedly connected to the limiting pads;

[0008] The two mounting pads are fixedly connected to a limiting column on one side close to each other, the inner walls of the two contact seats are fixedly connected to a contact spring, the outer surfaces of the two contact seats are fixedly connected to a U-shaped plate, and a reserved hole is opened on the outer surface of the mounting plate, and the limiting column is adapted to the reserved hole.

[0009] Furthermore, a limiting hole is provided on the outer surface of the U-shaped plate, and the limiting column is adapted to the limiting hole. After the limiting column passes through the limiting hole provided on the U-shaped plate and is inserted into the reserved hole provided on the mounting plate, it can limit the U-shaped plate, thereby realizing the installation and fixation of the contact seat body.

[0010] Specifically, the upper surface of the mounting base is fixedly connected to a support frame, the two mounting plates are fixedly connected to the upper surface of the support frame, the inner wall of the support frame is rotatably connected to a rotating rod, the rotating rod passes through the support frame, and the rotating rod can rotate on the inner wall of the support frame.

[0011] Preferably, the top end of the rotating rod is fixedly connected to a blade body bracket, and the inner wall of the blade body bracket is fixedly connected to a group of contact blades. The rotation of the rotating rod can drive the rotation of the blade body bracket, and then drive the rotation of the contact blade body. By clamping the contact blade body to the inner walls of different contact springs, the switching of the medium wave transmitter mode can be achieved.

[0012] Furthermore, a driving arm is fixedly connected to the outer surface of the rotating rod, an electric telescopic cylinder is installed on the upper surface of the mounting base, and a reserved sliding groove is opened on the outer surface of the driving arm.

[0013] Preferably, the output end of the electric telescopic cylinder is fixedly connected to a fixing pin, and the fixing pin is slidably connected to the inner wall of the driving arm. By starting the electric telescopic cylinder, the fixing pin can be driven to move. As the fixing pin moves, under the action of the sliding connection with the inner wall of the driving arm, the driving arm can be driven to rotate, thereby driving the rotation of the rotating rod.

[0014] Specifically, the fixing tube is fixedly connected to the outer surface of the mounting plate, and the two guide rods are fixedly connected to the outer surfaces of the two fixing plates 2 respectively, so that the fixing plates 2 can support the guide rods.

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

[0016] 1. The switching switch of the medium wave transmitter is arranged in coordination with the mounting base, the first fixing plate, the mounting plate, the second fixing plate and the quick-release mechanism, so that people can quickly disassemble the contact seat body to repair the contact spring fixed on its inner wall, which not only improves the work efficiency of people during its maintenance, but also avoids the situation where people are more difficult to disassemble due to rust of the screws, and effectively reduces the difficulty of people to repair the contact spring fixed on the inner wall of the contact seat body.

[0017] 2. The switching switch of the medium wave transmitter is arranged in coordination with the driving plate, connecting column, fixing ball, fixing column, mounting pad, limiting column and U-shaped plate, so that people can easily disassemble the contact seat for maintenance. The driving plate pushes the connecting column to slide into the fixing cylinder. At this time, as the driving plate moves, the two mounting pads can be driven away from each other under the connection between the fixing ball and the fixing column until the limiting column is disengaged from the limiting hole opened in the U-shaped plate, thereby releasing the limit of the U-shaped plate. At this time, people can easily disassemble the contact seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic front view of the three-dimensional structure of the present utility model;

[0019] Figure 2 It is a schematic side view of the three-dimensional structure of the utility model;

[0020] Figure 3 It is a partial structural explosion diagram of the utility model;

[0021] Figure 4 The figure is a schematic diagram of the exploded structure of the quick-release mechanism of the utility model.

[0022] Description of Reference Numerals

[0023] 1. Install the base; 2. Fix the plate 1;

[0024] 3. Mounting plate; 4. Fixing plate 2;

[0025] 5. Quick release mechanism; 501. Fixing cylinder; 502. Connecting column; 503. Spring; 504. Driving plate; 505. Mounting pad; 506. Fixing column; 507. Fixing ball; 508. Guide rod; 509. Limiting pad; 510. Limiting column; 511. Contact seat; 512. U-shaped plate; 513. Contact spring;

[0026] 6. Support frame; 7. Rotating rod; 8. Blade support; 9. Contact blade; 10. Driving arm; 11. Electric telescopic cylinder; 12. Fixing pin. DETAILED DESCRIPTION

[0027] An embodiment of the utility model provides a switching switch for a medium wave transmitter.

[0028] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , including a mounting base 1, a symmetrical fixing plate 2 is provided above the mounting base 1, the outer surfaces of the two fixing plates 2 are fixedly connected with symmetrical mounting plates 3, the two mounting plates 3 are located on the left and right sides of the fixing plate 2, the outer surfaces of the two mounting plates 3 are fixedly connected with symmetrical fixing plates 2 4, the fixing plates 2 4 are fixedly connected to the upper surface and bottom surface of the mounting plate 3, and the outer surfaces of the two mounting plates 3 are provided with symmetrical quick-release mechanisms 5, the quick-release mechanism 5 includes a fixing cylinder 501, two mounting pads 505 and two contact seats 511, the inner wall of the fixing cylinder 501 is slidably connected with a connecting column 502, one end of the connecting column 502 is fixedly connected with a spring 503, the spring 503 is fixedly connected to the outer surface of the mounting plate 3, as the connecting column 502 slides into the fixing cylinder 501, it can squeeze the spring 503, and at this time the spring 503 provides an outward elastic force to the connecting column 502;

[0029] The other end of the connecting column 502 is fixedly connected to a driving plate 504, and the shape of the driving plate 504 is an isosceles triangle. The side surfaces of the two mounting pads 505 that are close to each other are fixedly connected to a fixing column 506, and the ends of the two fixing columns 506 that are close to each other are fixedly connected to a fixing ball 507, and the fixing ball 507 contacts the hypotenuse of the driving plate 504. As the driving plate 504 moves, under the connection between the fixing ball 507 and the fixing column 506, the two mounting pads 505 can be driven away from each other. The inner walls of the two mounting pads 505 are slidably connected to a guide rod 508, and the ends of the two guide rods 508 that are away from each other are fixedly connected to a limiting pad 509, which can play a role of limiting and guiding the mounting pads 505 through the guide rod 508. The shape of the guide rod 508 is hexagonal;

[0030] The side surfaces of the two mounting pads 505 that are close to each other are fixedly connected to the limiting columns 510, the inner walls of the two contact seats 511 are fixedly connected to the contact springs 513, the outer surfaces of the two contact seats 511 are fixedly connected to the U-shaped plates 512, and the outer surface of the mounting plate 3 is provided with a reserved hole, and the limiting columns 510 are adapted to the reserved hole.

[0031] Please refer to Figure 4 A limiting hole is provided on the outer surface of the U-shaped plate 512, and the limiting column 510 is adapted to the limiting hole. After the limiting column 510 passes through the limiting hole provided on the U-shaped plate 512 and is inserted into the reserved hole provided on the mounting plate 3, it can limit the U-shaped plate 512, thereby realizing the installation and fixation of the contact seat body 511.

[0032] Please refer to Figure 3 The upper surface of the mounting base 1 is fixedly connected to a support frame 6, and the two mounting plates 3 are fixedly connected to the upper surface of the support frame 6. The inner wall of the support frame 6 is rotatably connected to a rotating rod 7, which passes through the support frame 6 and can rotate on the inner wall of the support frame 6.

[0033] Please refer to Figure 3 The top of the rotating rod 7 is fixedly connected to the blade body bracket 8, and the inner wall of the blade body bracket 8 is fixedly connected to a group of contact blades 9. The rotation of the rotating rod 7 can drive the rotation of the blade body bracket 8, and then drive the rotation of the contact blade 9. By clamping the contact blade 9 to different inner walls of the contact spring 513, the medium wave transmitter mode can be switched.

[0034] Please refer to Figure 3 The outer surface of the rotating rod 7 is fixedly connected to the driving arm 10, the upper surface of the mounting base 1 is installed with an electric telescopic cylinder 11, and the outer surface of the driving arm 10 is provided with a reserved slide groove.

[0035] Please refer to Figure 3 The output end of the electric telescopic cylinder 11 is fixedly connected to a fixing pin 12, and the fixing pin 12 is slidably connected to the inner wall of the driving arm 10. By starting the electric telescopic cylinder 11, the fixing pin 12 can be driven to move. As the fixing pin 12 moves, it can drive the driving arm 10 to rotate under the action of the sliding connection with the inner wall of the driving arm 10, thereby driving the rotation of the rotating rod 7.

[0036] Please refer to Figure 4 The fixing tube 501 is fixedly connected to the outer surface of the mounting plate 3, and the two guide rods 508 are respectively fixedly connected to the outer surfaces of the two fixing plates 2 4, so that the fixing plates 2 4 can support the guide rods 508.

[0037] Working principle: After long-term use of the device, when the contact seat body 511 is corroded or worn more severely and needs to be disassembled for maintenance, the driving plate 504 pushes the connecting column 502 to slide into the fixed cylinder 501. At this time, with the movement of the driving plate 504, under the connection between the fixing ball 507 and the fixing column 506, the two mounting pads 505 can be driven away from each other until the limiting column 510 is disengaged from the limiting hole opened on the U-shaped plate 512, thereby releasing the limit on the U-shaped plate 512. At this time, people can disassemble the contact seat body 511 more quickly, which not only improves the work efficiency of people during maintenance, but also avoids the situation where people find it difficult to disassemble due to rust of the screws, and effectively reduces the difficulty of people in repairing the contact spring 513 fixed to the inner wall of the contact seat body 511.

[0038] 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 for a medium wave transmitter, comprising a mounting base (1), characterized in that: A symmetrical fixing plate (2) is provided above the mounting base (1), the outer surfaces of the two fixing plates (2) are fixedly connected to a symmetrical mounting plate (3), the outer surfaces of the two mounting plates (3) are fixedly connected to a symmetrical fixing plate (4), and the outer surfaces of the two mounting plates (3) are provided with a symmetrical quick-release mechanism (5), the quick-release mechanism (5) comprising a fixing cylinder (501), two mounting pads (505) and two contact seats (511), the inner wall of the fixing cylinder (501) is slidably connected to a connecting column (502), one end of the connecting column (502) is fixedly connected to a spring (503), and the spring (503) is fixedly connected to the outer surface of the mounting plate (3); The other end of the connecting column (502) is fixedly connected to a driving plate (504), the sides of the two mounting pads (505) close to each other are fixedly connected to a fixing column (506), the ends of the two fixing columns (506) close to each other are fixedly connected to a fixing ball (507), the inner walls of the two mounting pads (505) are slidably connected to a guide rod (508), and the ends of the two guide rods (508) away from each other are fixedly connected to a limiting pad (509); The side surfaces of the two mounting pads (505) close to each other are fixedly connected to the limiting columns (510), the inner walls of the two contact seats (511) are fixedly connected to the contact springs (513), and the outer surfaces of the two contact seats (511) are fixedly connected to the U-shaped plates (512).

2. The switching switch for a medium wave transmitter according to claim 1, characterized in that: A limiting hole is provided on the outer surface of the U-shaped plate (512), and the limiting column (510) is adapted to the limiting hole.

3. The switching switch of a medium wave transmitter according to claim 1, characterized in that: The upper surface of the mounting base (1) is fixedly connected to a support frame (6), the two mounting plates (3) are fixedly connected to the upper surface of the support frame (6), and the inner wall of the support frame (6) is rotatably connected to a rotating rod (7).

4. The switching switch for a medium wave transmitter according to claim 3, characterized in that: The top end of the rotating rod (7) is fixedly connected to a blade support (8), and the inner wall of the blade support (8) is fixedly connected to a group of contact blades (9).

5. The switching switch of a medium wave transmitter according to claim 4, characterized in that: The outer surface of the rotating rod (7) is fixedly connected to a driving arm (10), and the upper surface of the mounting base (1) is mounted with an electric telescopic cylinder (11).

6. The switching switch of a medium wave transmitter according to claim 5, characterized in that: The output end of the electric telescopic cylinder (11) is fixedly connected to a fixing pin (12), and the fixing pin (12) is slidably connected to the inner wall of the driving arm (10).

7. The switching switch for a medium wave transmitter according to claim 1, characterized in that: The fixing cylinder (501) is fixedly connected to the outer surface of the mounting plate (3), and the two guide rods (508) are respectively fixedly connected to the outer surfaces of the two fixing plates (4).

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