Radio frequency receiver

Abstract

The utility model relates to a radio frequency receiver. A sealing device comprises a first sealing assembly and a second sealing assembly, wherein the first sealing assembly and the second sealing assembly are arranged in a radio frequency receiver shell and used for sealing a filtering device. The driving device comprises a driving assembly which is arranged in the radio frequency receiver shell and is used for driving the sealing assembly I and the sealing assembly II to move in opposite directions, and a guide rod which is used for assisting the sealing assembly I and the sealing assembly II to move up and down is arranged on the front side of the driving assembly. Therefore, when the radio frequency receiver does not work, the hand wheel can drive the threaded rod to rotate, the first sealing assembly and the second sealing assembly can be controlled to get close to each other at the two sections of threads of the threaded rod under the threaded connection of the threaded sleeve plate and the threaded rod, and then the filter plate can be sealed to prevent the filter plate from being damaged when the radio frequency receiver is not used. And dust outside the radio frequency receiver enters the radio frequency receiver shell along the filter holes of the filter plate.

Description

Technical Field

[0001] This utility model relates to the field of receiver technology, and in particular to a radio frequency receiver. Background Technology

[0002] A radio frequency (RF) transceiver is a device that integrates RF transmission and reception functions, used to receive and transmit signals in wireless communication systems. Among various receivers, the heterodyne structure is the most common type due to its advantages of low spurious emissions, large dynamic range, and high sensitivity. For example, an RF receiver as described in Chinese patent application CN202323267897.8 features a control panel located on the front surface of the housing, a receiving antenna located on the top left end of the housing, a working body installed inside the housing, heat dissipation fins fixed to the front and rear sides of the working body, a heat dissipation assembly on the right side of the housing to dissipate heat from the inside of the working body and the surface of the heat dissipation fins, fastening components for fixing the heat dissipation assembly, and a fixing component for securing the housing on the back.

[0003] However, when using a filter plate to maintain airflow inside the RF receiver, the filter holes on the filter plate are always open, which makes it easy for dust to enter the RF receiver through the filter holes when the RF receiver is not working; thus affecting the heat dissipation and operation of the RF receiver. Utility Model Content

[0004] To address the problem mentioned in the background art, where the filter holes on the filter plate remain constantly open, allowing dust to easily enter the RF receiver when it is not in operation, thus affecting the RF receiver's heat dissipation and operation, this utility model provides the following technical solution:

[0005] A radio frequency (RF) receiver includes an RF receiver housing, a filter device for filtering the RF receiver housing is disposed on the right side of the RF receiver housing, a sealing device for sealing the filter device is disposed on the right side of the filter device, and a driving device for driving the sealing device to seal the filter device is disposed inside the RF receiver housing.

[0006] The filtering device includes a filter plate disposed inside the housing of the radio frequency receiver for vertical movement, and a limiting plate for restricting the filter plate is fixedly installed at the top of the filter plate.

[0007] The sealing device includes a sealing component one and a sealing component two disposed inside the housing of the radio frequency receiver for sealing the filter device, and the sealing component one and the sealing component two move in opposite directions.

[0008] The driving device includes a driving component disposed inside the RF receiver housing for driving the sealing component one and the sealing component two to move in opposite directions. A guide rod is provided on the front side of the driving component to assist the sealing component one and the sealing component two in moving up and down.

[0009] Furthermore, sliders for moving up and down within the RF receiver housing are fixedly installed at both ends of the filter plate, and a handle for driving the filter plate to move up and down is fixedly installed at the top of the limiting plate.

[0010] Furthermore, a fixing plate for locking the first limiting plate is fixedly installed at the top end of the first limiting plate, and there are two fixing plates. The plate body of the fixing plate is provided with bolts for cooperating with the fixing plate to lock the first limiting plate.

[0011] Furthermore, the sealing assembly includes a sealing plate disposed at the right end of the filter plate for vertical movement, a limiting plate two for restricting the sealing plate is fixedly installed at the top end of the sealing plate, a threaded sleeve plate for threaded connection with the drive assembly is fixedly installed at the rear end of the limiting plate two, and a fixed sleeve plate for sliding on the guide rod is fixedly installed at the front end of the sealing plate.

[0012] Furthermore, the drive assembly includes a threaded rod disposed within the RF receiver housing for driving the sealing plate to move up and down, and a handwheel for driving the threaded rod to rotate is fixedly mounted at the top end of the threaded rod.

[0013] Furthermore, the front end of the RF receiver housing is provided with an operation panel for operating the RF receiver, the top end of the RF receiver housing is provided with a receiving antenna for receiving electrical signals, and the rear end of the RF receiver housing is fixedly installed with two fixing blocks for mounting the RF receiver housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By setting up a filter device, a sealing device, and a drive device, when the RF receiver is not working, the threaded rod can be rotated by a handwheel. With the threaded connection between the threaded sleeve plate and the threaded rod, the sealing components one and two can be controlled to approach each other at the two threads of the threaded rod, thereby sealing the filter plate and preventing dust from the outside of the RF receiver from entering the RF receiver housing through the filter holes of the filter plate when the RF receiver is not in use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the radio frequency receiver housing of this utility model;

[0018] Figure 3 This is a schematic diagram of the filter device of this utility model;

[0019] Figure 4 This is a schematic diagram of the sealing device structure of this utility model;

[0020] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle;

[0021] Figure 6 This is a diagram showing the assembly of the driving device and the sealing device of this utility model.

[0022] The following is a list of component names represented by the various reference numerals in the attached figures:

[0023] 100 - Radio frequency receiver housing;

[0024] 200-Filter device, 210-Filter plate, 220-Slider, 230-Limiting plate one, 240-Handle, 250-Fixing plate, 260-Bolt;

[0025] 300-Sealing device, 310-Sealing assembly one, 311-Sealing plate, 312-Restriction plate two, 313-Threaded sleeve, 314-Fixed sleeve, 320-Sealing assembly two;

[0026] 400-Drive device, 410-Drive assembly, 411-Handwheel, 412-Threaded rod, 420-Guide rod;

[0027] 001-Receiving antenna, 002-Control panel, 003-Fixing block. Detailed Implementation

[0028] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0029] Please see Figures 1-6 This utility model provides a radio frequency receiver.

[0030] The device includes a radio frequency receiver housing 100, a filter device 200 for filtering the radio frequency receiver housing 100 is provided on the right side of the radio frequency receiver housing 100, a sealing device 300 for sealing the filter device 200 is provided on the right side of the filter device 200, and a drive device 400 for driving the sealing device 300 to seal the filter device 200 is provided inside the radio frequency receiver housing 100.

[0031] The front end of the RF receiver housing 100 is provided with an operation panel 002 for operating the RF receiver, so as to control the electronic components inside the RF receiver housing 100. The top end of the RF receiver housing 100 is provided with a receiving antenna 001 for receiving electrical signals. The rear end of the RF receiver housing 100 is fixedly installed with a fixing block 003 for mounting the RF receiver housing 100. The fixing block 003 has an L-shaped cross-section, so as to fix the RF receiver housing 100 to the wall. There are two fixing blocks 003, which are symmetrically distributed at the rear end of the RF receiver housing 100. The RF receiver housing 100 has a placement slot for placing the filter device 200. The shape and size of the placement slot are the same as the shape and size of the filter plate 210, so as to facilitate quick replacement of the filter device 200.

[0032] The filter device 200 includes a filter plate 210 disposed inside the radio frequency receiver housing 100 for vertical movement. The filter plate 210 has a plurality of filter holes arranged in a rectangular array on the plate body to facilitate the airflow in the radio frequency receiver housing 100 and thus facilitate the removal of heat from the radio frequency receiver housing 100. A limiting plate 230 is fixedly installed at the top of the filter plate 210 to restrict the filter plate 210.

[0033] The filter plate 210 is fixedly installed with sliders 220 for moving up and down inside the radio frequency receiver housing 100 at both ends. The sliders 220 can move up and down on both sides of the placement slot. The top of the limiting plate 230 is fixedly installed with a handle 240 for driving the filter plate 210 to move up and down, so that the filter plate 210 can be moved quickly by the handle 240.

[0034] The top of the limiting plate 230 is fixedly installed with a fixing plate 250 for locking the limiting plate 230. There are two fixing plates 250, which are symmetrically welded to the top of the limiting plate 230. The fixing plate 250 is provided with bolts 260 for locking the limiting plate 230 with the fixing plate 250. So when the filter plate 210 needs to be replaced, the bolts 260 can be loosened from the two fixing plates 250 and removed. Then the filter plate 210 can be taken out for replacement through the handle 240.

[0035] The sealing device 300 includes a sealing component 310 and a sealing component 320 disposed within the RF receiver housing 100 for sealing the filter device 200. The sealing component 310 and the sealing component 320 move in opposite directions. Since the sealing component 310 and the sealing component 320 have the same composition, this application only needs to describe one of the components of the sealing component 310 and the sealing component 320 in detail.

[0036] The sealing assembly 310 includes a sealing plate 311 disposed at the right end of the filter plate 210 for moving up and down. A limiting plate 312 for restricting the sealing plate 311 is fixedly installed at the top end of the sealing plate 311. A threaded sleeve 313 for threaded connection with the drive assembly 410 is fixedly installed at the rear end of the limiting plate 312. A fixing sleeve 314 for sliding on the guide rod 420 is fixedly installed at the front end of the sealing plate 311.

[0037] The driving device 400 includes a driving component 410 disposed inside the radio frequency receiver housing 100 for driving the sealing component 310 and the sealing component 320 to move in opposite directions. A guide rod 420 is provided on the front side of the driving component 410 for assisting the sealing component 310 and the sealing component 320 to move up and down.

[0038] The drive assembly 410 includes a threaded rod 412 disposed within the RF receiver housing 100 for driving the sealing plate 311 to move up and down. The upper and lower ends of the threaded rod 412 are connected to the housing of the RF receiver housing 100 via bearings to facilitate rotation of the threaded rod 412. Simultaneously, the threaded rod 412 has two threads with opposite directions of rotation at both ends, allowing rotation of the threaded rod 412 to control the up and down movement of the sealing assembly 310 and the sealing assembly 320 at the two threaded sections of the threaded rod 412. A handwheel 411 for driving the threaded rod 412 to rotate is fixedly installed at the top. Thus, when the RF receiver is not working, the handwheel 411 can drive the threaded rod 412 to rotate. With the threaded sleeve 313 connected to the threaded rod 412, the sealing component 310 and the sealing component 320 can be controlled to move closer to each other at the two threads of the threaded rod 412, thereby sealing the filter plate 210 to prevent dust from the outside of the RF receiver from entering the RF receiver housing 100 through the filter holes of the filter plate 210 when the RF receiver is not in use.

[0039] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A radio frequency receiver, comprising a radio frequency receiver housing (100), characterized in that: A filter device (200) for filtering the RF receiver housing (100) is provided on the right side of the RF receiver housing (100), a sealing device (300) for sealing the filter device (200) is provided on the right side of the filter device (200), and a driving device (400) for driving the sealing device (300) to seal the filter device (200) is provided inside the RF receiver housing (100). The filtering device (200) includes a filter plate (210) disposed inside the radio frequency receiver housing (100) for moving up and down, and a limiting plate (230) for restricting the filter plate (210) is fixedly installed at the top of the filter plate (210). The sealing device (300) includes a sealing component one (310) and a sealing component two (320) disposed in the radio frequency receiver housing (100) for sealing the filter device (200), and the sealing component one (310) and the sealing component two (320) move in opposite directions. The driving device (400) includes a driving component (410) disposed inside the radio frequency receiver housing (100) for driving the sealing component one (310) and the sealing component two (320) to move in opposite directions. A guide rod (420) is provided on the front side of the driving component (410) for assisting the sealing component one (310) and the sealing component two (320) to move up and down.

2. The radio frequency receiver according to claim 1, characterized in that: The filter plate (210) is fixedly equipped with sliders (220) for moving up and down inside the radio frequency receiver housing (100) at both ends. The top of the limiting plate (230) is fixedly equipped with a handle (240) for driving the filter plate (210) to move up and down.

3. The radio frequency receiver according to claim 2, characterized in that: The top of the first limiting plate (230) is fixedly installed with a fixing plate (250) for locking the first limiting plate (230), and there are two fixing plates (250). The plate body of the fixing plate (250) is provided with bolts (260) for cooperating with the fixing plate (250) to lock the first limiting plate (230).

4. The radio frequency receiver according to claim 2, characterized in that: The sealing assembly (310) includes a sealing plate (311) disposed at the right end of the filter plate (210) for moving up and down. A limiting plate (312) for restricting the sealing plate (311) is fixedly installed at the top end of the sealing plate (311). A threaded sleeve (313) for threaded connection with the drive assembly (410) is fixedly installed at the rear end of the limiting plate (312). A fixed sleeve (314) for sliding on the guide rod (420) is fixedly installed at the front end of the sealing plate (311).

5. The radio frequency receiver according to claim 4, characterized in that: The drive assembly (410) includes a threaded rod (412) disposed inside the radio frequency receiver housing (100) for driving the sealing plate (311) to move up and down, and a handwheel (411) for driving the threaded rod (412) to rotate is fixedly installed at the top end of the threaded rod (412).

6. The radio frequency receiver according to claim 1, characterized in that: The front end of the radio frequency receiver housing (100) is provided with an operation panel (002) for operating the radio frequency receiver, the top end of the radio frequency receiver housing (100) is provided with a receiving antenna (001) for receiving electrical signals, and the rear end of the radio frequency receiver housing (100) is fixedly installed with a fixing block (003) for mounting the radio frequency receiver housing (100), and there are two fixing blocks (003).

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