Frequency modulation receiving device of public broadcasting system

Abstract

The utility model discloses a frequency modulation receiving device of a public broadcasting system, which relates to the technical field of media equipment and comprises a tuner body, a heat dissipation mechanism is arranged at the top of the tuner body, a protection mechanism is arranged on the periphery of the tuner body, and a switch mechanism is arranged at one end of the protection mechanism. A plurality of guide rods are symmetrically arranged at the bottom ends of the two sides of the storage box, the same buffer plate is fixedly arranged at one ends of the guide rods located on the same side, first springs are fixedly arranged between the buffer plate and the guide rods, and the guide rods are sleeved with the first springs; according to the utility model, the switch mechanism and the protection mechanism are arranged, so that the switch mechanism and the protection mechanism work to complete protection and storage of the tuner body, and the tuner body is prevented from being damaged when being collided; through the arrangement of the heat dissipation mechanism, the heat dissipation process of the tuner body can be accelerated through the work of the heat dissipation mechanism, heat is prevented from being accumulated in the tuner body to damage the tuner body, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of media equipment, in particular to a frequency modulation receiving device for a public broadcasting system. Background Art

[0002] Public broadcasting equipment: a general term for all equipment that make up the public broadcasting system. It mainly includes broadcasting speakers, power amplifiers, transmission lines and other transmission equipment, management / control equipment (including hardware and software), paging equipment, microphones and other signal source equipment. Among them, the FM receiver is a device in the public broadcasting system, and the FM receiver is also a tuner. The tuner selects the desired TV or radio wave signal from a large number of radio waves, amplifies it, and then converts it into an intermediate frequency signal (image intermediate frequency 38.0MHz, audio intermediate frequency 31.5MHz). The tuner circuit is divided into VHF and UHF parts according to the receiving frequency band, each of which is composed of input tuning, high-frequency amplification, mixing and local oscillation circuits.

[0003] The device has shortcomings when in use. Some tuners will generate heat when working. The heat is generally dissipated through the heat dissipation holes, but the dissipation efficiency is low, which can easily cause heat to accumulate inside the tuner and damage the tuner. When transporting the tuner, it is generally carried directly without being stored and protected, and the tuner is easily damaged by bumps. In view of the above problems, the inventor proposes a public broadcasting system FM receiving device to solve the above problems. Utility Model Content

[0004] In order to solve the problem that some tuners generate heat when working, the heat is generally dissipated through heat dissipation holes, but the dissipation efficiency is low, which easily causes heat accumulation inside the tuner to damage the tuner, and when transporting the tuner, it is generally carried directly without being stored and protected, and the tuner is easily damaged by bumps; the purpose of the utility model is to provide a FM receiving device for a public broadcasting system.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a FM receiving device for a public broadcasting system, comprising a tuner body, a heat dissipation mechanism is provided on the top of the tuner body, a protective mechanism is provided on the periphery of the tuner body, and a switch mechanism is provided at one end of the protective mechanism: the protective mechanism comprises a storage box, a plurality of guide rods are symmetrically provided at the bottom ends of both sides of the storage box, a same buffer plate is fixedly provided at one end of the guide rods on the same side, a first spring is fixedly provided between the buffer plate and the guide rod, the first spring is sleeved on the guide rod, and the shape of one end of the buffer plate is set as an inclined surface.

[0006] Preferably, the heat dissipation mechanism includes a U-shaped fixing frame, a plurality of mounting holes are opened on the top of the U-shaped fixing frame, a mounting frame is fixedly provided on the outer ring of the top of the mounting holes, a cooling fan is clamped inside the mounting frame, a first fixing block is fixedly provided at one end of the top of the mounting hole, a first through hole is opened on one side of the first fixing block, a sliding rod is slidably provided inside the first through hole, a second fixing block is fixedly provided at one end of the sliding rod, a second spring is fixedly provided between the second fixing block and the first fixing block, the second spring is sleeved on the sliding rod, a limit block is fixedly provided on one side of the second fixing block, a limit hole is opened on one side of the mounting frame, a limit hole is inserted through the limit hole, a second through hole is opened on one side of the limit bar, the limit block and the second through hole are interlaced and matched, fixing strips are symmetrically fixedly provided at both ends of the U-shaped fixing frame, and the bottom of the fixing strip is fixedly matched with one end of the top of the tuner body by bolts.

[0007] Preferably, the switch mechanism includes a rotating seat, a slide groove, and an electric telescopic rod, one side of the rotating seat is fixedly matched with the other end of the top of the storage box, a rotating shaft is rotatably provided inside the rotating seat, a plurality of connecting blocks are fixedly provided on the surface of the rotating shaft, a baffle is fixedly provided at the bottom of the connecting block, one end of the rotating shaft passes through the rotating seat sleeve and is provided with a gear, a rack is meshed at the bottom of the gear, the bottom of the rack slides with the inside of the slide groove, an opening is opened at the bottom of the slide groove, a moving block is fixedly provided at the bottom of the rack, a movable block is fixedly provided at the bottom of the movable block, one side of the movable block is fixedly matched with the output end of the electric telescopic rod, a mounting block is fixedly provided at the bottom of the electric telescopic rod, and one end of the mounting block is fixedly matched with the top of one side of the storage box.

[0008] Preferably, support bars are symmetrically fixed on both sides of the bottom of the tuner body, and through holes are symmetrically opened on both sides of the bottom of the storage box, and the support bars are slidably matched with the through holes.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. The utility model provides a switch mechanism and a protection mechanism so that the switch mechanism and the protection mechanism can protect and store the tuner body, thereby preventing the tuner body from being damaged when it is bumped; the utility model provides a heat dissipation mechanism so that the heat dissipation mechanism can accelerate the heat dissipation process of the tuner body, thereby preventing heat from accumulating inside the tuner body and damaging the tuner body, thereby accelerating the heat dissipation efficiency;

[0011] 2. The utility model utilizes the tuner body to move to contact the buffer plate and squeeze the buffer plate, so that the two buffer plates move in the direction away from each other until the tuner body is completely entered into the storage box, and the electric telescopic rod is started to shorten it, thereby driving the movable block and the moving block to move, thereby driving the rack to move, thereby driving the gear to rotate, and thereby driving the baffle to rotate, thereby completing the storage and protection of the tuner body;

[0012] 3. The utility model utilizes the cooling fan to rotate, drives the surrounding air to flow quickly, makes the air containing a lot of heat quickly leave the vicinity of the tuner body, avoids the heat accumulation inside the tuner body, and when it is necessary to replace the damaged cooling fan, the staff holds the second fixing block to move it, thereby drives the sliding rod to move, thereby compressing the second spring, thereby drives the limit block to leave the limit bar, pulls out the limit bar, and then pulls out the cooling fan to complete the replacement of the damaged cooling fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the internal structure of the storage box of the utility model.

[0015] Figure 2 It is a schematic diagram of the overall external structure of the utility model.

[0016] Figure 3 It is a schematic diagram of the structure of the protection mechanism of the utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the heat dissipation fan of the utility model.

[0018] Figure 5 This is a schematic diagram of the switch mechanism structure of the utility model.

[0019] Figure 6 The utility model is a schematic diagram of the connection structure of the moving block, the active block and the electric telescopic rod.

[0020] Figure 7 It is a schematic diagram of the connection structure between the tuner body and the support bar of the utility model.

[0021] In the figure: 1. tuner body; 2. heat dissipation mechanism; 201. U-shaped fixing frame; 202. mounting frame; 203. cooling fan; 204. first fixing block; 205. sliding rod; 206. second fixing block; 207. second spring; 208. limiting block; 209. limiting strip; 210. fixing strip; 3. protection mechanism; 301. storage box; 302. guide rod; 303. buffer plate; 304. first spring; 4. switch mechanism; 401. rotating seat; 402. rotating shaft; 403. connecting block; 404. baffle; 405. gear; 406. rack; 407. slide groove; 408. moving block; 409. movable block; 410. electric telescopic rod; 411. mounting block; 5. support strip. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example: Figure 1-7 As shown, the utility model provides an FM receiving device for a public broadcasting system, comprising a tuner body 1, a heat dissipation mechanism 2 is provided on the top of the tuner body 1, a protection mechanism 3 is provided on the side of the tuner body 1, and a switch mechanism 4 is provided at one end of the protection mechanism 3: the protection mechanism 3 comprises a storage box 301, and a plurality of guide rods 302 are symmetrically provided at the bottom ends of both sides of the storage box 301, and a same buffer plate 303 is fixedly provided at one end of the guide rod 302 on the same side, and a first spring 304 is fixedly provided between the buffer plate 303 and the guide rod 302, and the first spring 304 is sleeved on the guide rod 302.

[0024] The heat dissipation mechanism 2 comprises a U-shaped fixing frame 201 , a plurality of mounting holes are formed on the top of the U-shaped fixing frame 201 , a mounting frame 202 is fixedly provided on the outer ring of the top of the mounting holes, and a heat dissipation fan 203 is clamped inside the mounting frame 202 .

[0025] By adopting the above technical solution, the rotation of the heat dissipation fan 203 can drive the heat to leave the tuner body 1 quickly.

[0026] A first fixed block 204 is fixedly provided at one end of the top of the mounting hole, a first through hole is provided at one side of the first fixed block 204, a sliding rod 205 is slidably provided inside the first through hole, a second fixed block 206 is fixedly provided at one end of the sliding rod 205, a second spring 207 is fixedly provided between the second fixed block 206 and the first fixed block 204, the second spring 207 is sleeved on the sliding rod 205, a limit block 208 is fixedly provided at one side of the second fixed block 206, a limit hole is provided at one side of the mounting frame 202, a limit strip 209 is inserted through the limit hole, a second through hole is provided at one side of the limit strip 209, and the limit block 208 is inserted and matched with the second through hole.

[0027] By adopting the above technical solution, the movement of the second fixing block 206 can drive the limiting block 208 to move.

[0028] Fixing strips 210 are symmetrically fixed at both ends of the U-shaped fixing frame 201 , and the bottom of the fixing strip 210 is fixedly matched with one end of the top of the tuner body 1 by bolts.

[0029] By adopting the above technical solution, the U-shaped fixing frame 201 can be installed or disassembled by tightening or loosening the bolts.

[0030] The switch mechanism 4 includes a rotating seat 401, a slide groove 407, and an electric telescopic rod 410. One side of the rotating seat 401 is fixedly matched with the other end of the top of the storage box 301. A rotating shaft 402 is rotatably provided inside the rotating seat 401. A plurality of connecting blocks 403 are fixedly provided on the surface of the rotating shaft 402. A baffle 404 is fixedly provided at the bottom of the connecting block 403.

[0031] By adopting the above technical solution, the rotation of the rotating shaft 402 can drive the baffle 404 to rotate.

[0032] One end of the rotating shaft 402 passes through the rotating seat 401 and is equipped with a gear 405. A rack 406 is meshed at the bottom of the gear 405. The bottom of the rack 406 slides with the inside of the slide groove 407. An opening is opened at the bottom of the slide groove 407. A moving block 408 is fixedly provided at the bottom of the rack 406. A movable block 409 is fixedly provided at the bottom of the moving block 408. One side of the movable block 409 is fixedly matched with the output end of the electric telescopic rod 410. A mounting block 411 is fixedly provided at the bottom of the electric telescopic rod 410. One end of the mounting block 411 is fixedly matched with the top of one side of the storage box 301.

[0033] By adopting the above technical solution, the extension or contraction of the electric telescopic rod 410 can drive the rotating shaft 402 to rotate.

[0034] Support bars 5 are symmetrically fixed on both sides of the bottom of the tuner body 1 , and through holes are symmetrically opened on both sides of the bottom of the storage box 301 , and the support bars 5 are slidably matched with the through holes.

[0035] By adopting the above technical solution, the tuner body 1 has stronger structural stability when moving.

[0036] One end of the buffer plate 303 is shaped as an inclined surface.

[0037] By adopting the above technical solution, the movement of the tuner body 1 can drive the buffer plate 303 to move.

[0038] Working principle: when the tuner body 1 needs to be used, the tuner body 1 can be started normally. When the tuner body 1 is working, heat is generated. The cooling fan 203 is started to rotate, driving the surrounding air to flow quickly, so that the air containing a lot of heat quickly leaves the vicinity of the tuner body 1, avoiding the accumulation of heat inside the tuner body 1. When the damaged cooling fan 203 needs to be replaced, the staff holds the second fixing block 206 to move it, thereby driving the sliding rod 205 to move, thereby compressing the second spring 207, thereby driving the limit block 208 to leave the limit bar 209, pulling out the limit bar 209, and then pulling out the cooling fan 203 to complete the replacement of the damaged cooling fan 203.

[0039] When the tuner body 1 needs to be transported or removed, the tuner body 1 is slid into the storage box 301 along the direction of the perforation, and the tuner body 1 contacts the buffer plate 303 and squeezes the buffer plate 303, so that the two buffer plates 303 move away from each other until the tuner body 1 completely enters the storage box 301, and the electric telescopic rod 410 is started to shorten it, thereby driving the movable block 409 and the movable block 408 to move, thereby driving the rack 406 to move, and then driving the gear 405 to rotate in the counterclockwise direction with the gear 405 as the axis, and then driving the baffle 404 to rotate in the counterclockwise direction with the gear 405 as the axis until it is completely blocked at the end face of the storage box 301, thereby completing the storage and protection of the tuner body 1.

[0040] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A FM receiving device for a public broadcasting system, comprising a tuner body (1), characterized in that: The top of the tuner body (1) is provided with a heat dissipation mechanism (2), the peripheral side of the tuner body (1) is provided with a protection mechanism (3), and one end of the protection mechanism (3) is provided with a switch mechanism (4): The protection mechanism (3) comprises a storage box (301), a plurality of guide rods (302) are symmetrically provided at the bottom ends of both sides of the storage box (301), a same buffer plate (303) is fixedly provided at one end of the guide rod (302) on the same side, a first spring (304) is fixedly provided between the buffer plate (303) and the guide rod (302), and the first spring (304) is sleeved on the guide rod (302).

2. A FM receiving device for a public broadcasting system as claimed in claim 1, characterized in that: The heat dissipation mechanism (2) comprises a U-shaped fixing frame (201), a plurality of mounting holes are provided on the top of the U-shaped fixing frame (201), a mounting frame (202) is fixedly provided on the outer ring of the top of the mounting holes, and a heat dissipation fan (203) is clamped inside the mounting frame (202).

3. A FM receiving device for a public broadcasting system as claimed in claim 2, characterized in that: A first fixing block (204) is fixedly provided at one end of the top of the mounting hole, a first through hole is provided at one side of the first fixing block (204), a sliding rod (205) is slidably provided inside the first through hole, a second fixing block (206) is fixedly provided at one end of the sliding rod (205), a second spring (207) is fixedly provided between the second fixing block (206) and the first fixing block (204), the second spring (207) is sleeved on the sliding rod (205), a limiting block (208) is fixedly provided at one side of the second fixing block (206), a limiting hole is provided at one side of the mounting frame (202), a limiting strip (209) is inserted through the limiting hole, a second through hole is provided at one side of the limiting strip (209), and the limiting block (208) is inserted and matched with the second through hole.

4. A FM receiving device for a public broadcasting system as claimed in claim 3, characterized in that: Fixing strips (210) are symmetrically fixed at both ends of the U-shaped fixing frame (201), and the bottom of the fixing strip (210) is fixedly matched with one end of the top of the tuner body (1) by means of bolts.

5. A FM receiving device for a public broadcasting system as claimed in claim 1, characterized in that: The switch mechanism (4) comprises a rotating seat (401), a sliding groove (407), and an electric telescopic rod (410); one side of the rotating seat (401) is fixedly matched with the other end of the top of the storage box (301); a rotating shaft (402) is rotatably provided inside the rotating seat (401); a plurality of connecting blocks (403) are fixedly provided on the surface of the rotating shaft (402); and a baffle (404) is fixedly provided on the bottom of the connecting block (403).

6. A FM receiving device for a public broadcasting system as claimed in claim 5, characterized in that: One end of the rotating shaft (402) passes through the rotating seat (401) and is provided with a gear (405); a rack (406) is meshed at the bottom of the gear (405); the bottom of the rack (406) is slidably matched with the inside of a slide groove (407); an opening is provided at the bottom of the slide groove (407); a moving block (408) is fixedly provided at the bottom of the rack (406); a movable block (409) is fixedly provided at the bottom of the moving block (408); one side of the movable block (409) is fixedly matched with the output end of the electric telescopic rod (410); a mounting block (411) is fixedly provided at the bottom of the electric telescopic rod (410); one end of the mounting block (411) is fixedly matched with the top end of one side of the storage box (301).

7. A FM receiving device for a public broadcasting system as claimed in claim 1, characterized in that: Support bars (5) are symmetrically fixed on both sides of the bottom of the tuner body (1), and through holes are symmetrically opened on both sides of the bottom of the storage box (301), and the support bars (5) are slidably matched with the through holes.

8. The FM receiving device for a public broadcasting system as claimed in claim 1, characterized in that: One end of the buffer plate (303) is shaped as an inclined surface.

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