A pre-filter protection device

Abstract

The utility model belongs to the technical field of filter installation, specifically a pre-filter protection device, comprising a bottom shell, an installation cavity is opened on the upper side of the bottom shell, a wire protection block is penetrated on the front and rear sides of the installation cavity, a wire hole is penetrated on the wire protection block, the front and rear side walls of the inner side of the installation cavity are fixedly connected with a buffer spring, the opposite sides of the buffer spring are fixedly connected with a fastening plate, the left and right side walls of the inner side of the installation cavity are opened with a first slide groove, the left and right side walls of the fastening plate are slidably connected with the inner side of the first slide groove, and the four corners of the upper side of the bottom shell are movably embedded with telescopic columns, so as to solve the problems that the installation and disassembly of the existing device is relatively complicated when it is used, and the installation of the filter is not stable enough, which is easy to cause shaking and damage due to external collision; the existing device does not provide sufficient protection for the wiring of the device, and the heat generated when the device is used cannot be discharged in time.

Description

Technical Field

[0001] The utility model relates to the technical field of filter installation, in particular to a pre-filter protection device. Background Art

[0002] The pre-filter is a filter placed at the input of the receiver. Its main function is to filter out out-of-band signals and noise to reduce the interference and noise of the receiver. The pre-filter is usually a high-pass or band-pass filter. Its passband range should usually match the frequency range of the receiver. The filter is easily interfered by the external environment when in use, so a protective device is needed to protect the filter body.

[0003] When the existing device is used, installation and disassembly are relatively complicated, and the installation of the filter is not stable enough, which is easy to cause shaking and damage due to external collisions. In addition, the existing device does not provide sufficient protection for the wiring of the device, and the heat generated when the device is in use cannot be discharged in time, which is easy to cause the risk of leakage and high-temperature melting of the device, reducing the service life of the filter, which is relatively inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide a pre-filter protection device to solve the problems that the existing device proposed in the above background technology is complicated to install and disassemble when in use, and the installation of the filter is not stable enough, which is easy to cause shaking and damage due to external collision; the existing device does not provide sufficient protection for the wiring of the device, and the heat generated when the device is in use cannot be discharged in time.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pre-filter protection device, comprising a bottom shell, an installation cavity is opened on the upper side of the bottom shell, a wire protection block is penetrated on the front and rear sides of the installation cavity, a wire hole is penetrated on the wire protection block, the front and rear side walls of the inner side of the installation cavity are fixedly connected with a buffer spring, the opposite sides of the buffer spring are fixedly connected with a fastening plate, the left and right side walls of the inner side of the installation cavity are opened with a first slide groove, the left and right side walls of the fastening plate are slidably connected to the inner side of the first slide groove, the four corners of the upper side of the bottom shell are movably embedded with telescopic columns, the upper side of the telescopic columns is fixedly connected with a connecting frame, and the upper side of the bottom shell is movably provided with a closed shell.

[0006] Preferably, the wire protection blocks and the buffer springs are evenly staggered, and the wire protection blocks are located on the opposite side of the fastening plate.

[0007] Preferably, wire holes are formed through the front and rear sides of the fastening plate, and wiring contacts are fixedly connected to opposite sides of the fastening plate.

[0008] Preferably, the four inner walls of the closed shell are all provided with second sliding grooves, and the outer wall of the connecting frame is slidably connected to the inner side of the second sliding grooves.

[0009] Preferably, the outer side walls of the bottom shell and the connecting frame are fitted with the inner side walls of the closed shell, and the front and rear sides of the closed shell are provided with embedding holes, which are embedded with the wire protection block.

[0010] Preferably, a heat dissipation fan is embedded on the upper side of the closed shell, and fixing blocks are symmetrically connected to the left and right sides of the closed shell in a front-to-back manner, and screw holes are provided on the upper side of the fixing blocks.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1) When the device is used, the filter is installed on the inside of the installation cavity, and the fastening plates on the front and rear sides clamp the filter. Then, the power supply is connected through the contact contacts on the opposite sides of the fastening plates on the front and rear sides, and the buffer springs on the front and rear sides push the fastening plates to indirectly clamp the filter. At this time, the filter is stably clamped on the inside of the installation cavity and can buffer the collision and vibration of the outside world. Then, the bottom shell is stored to the inside of the closed shell through the telescopic column. At this time, the connecting frame can limit the bottom shell, and then the closed shell is fixed through the screw holes on the left and right sides. When there is an external collision, the collision will contact the closed shell without causing a significant impact on the bottom shell. When disassembling and replacing, it is only necessary to release the screw holes on both sides and then lift the closed shell upward to replace the internal filter. It is relatively simple and efficient.

[0013] 2) When the device is in use, the external wires are inserted into the inner side of the device through the wire holes opened on the inner side of the wire protection block and connected to the wiring contacts on the opposite side of the fastening plate. There is no need to reconnect the wires during installation and replacement. This design can protect the wires and prevent them from breaking due to frequent replacement and installation of filters. A heat dissipation fan is also provided to discharge the heat generated inside the device out of the device to prevent the filter from being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view of the bottom shell structure;

[0016] Figure 3 This is a schematic diagram of the main structure of the utility model after being disassembled;

[0017] Figure 4 It is a schematic diagram of the main structure of the bottom shell and the connecting frame.

[0018] In the figure: 1. bottom shell, 2. mounting cavity, 3. wire protection block, 4. wire hole, 5. buffer spring, 6. fastening plate, 7. telescopic column, 8. connection frame, 9. closed shell, 10. wiring contact, 11. embedding hole, 12. cooling fan, 13. fixing block, 14. screw hole. DETAILED DESCRIPTION

[0019] 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.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] Example:

[0022] See also Figure 1-4 The utility model provides a technical solution: a pre-filter protection device, including a bottom shell 1, an installation cavity 2 is opened on the upper side of the bottom shell 1, a wire protection block 3 is penetrated on the front and rear sides of the installation cavity 2, a wire hole 4 is penetrated on the wire protection block 3, an external wire penetrates into the inner side of the device through the wire hole 4 opened on the inner side of the wire protection block 3 and is connected to the wiring contact 10 on the opposite side of the fastening plate 6, the wire protection block 3 can protect the wire, the front and rear side walls inside the installation cavity 2 are fixedly connected with a buffer spring 5, the buffer The opposite sides of the spring 5 are fixedly connected with a fastening plate 6. The buffer springs 5 ​​on the front and rear sides push the fastening plate 6, which can indirectly clamp the filter and buffer the external collision vibration. The left and right side walls inside the installation cavity 2 are provided with a first sliding groove, and the left and right side walls of the fastening plate 6 are slidably connected to the inner side of the first sliding groove. The four corners of the upper side of the bottom shell 1 are movably embedded with telescopic columns 7, and the upper side of the telescopic columns 7 is fixedly connected with a connecting frame 8, which can limit the bottom shell 1, and the upper side of the bottom shell 1 is movably provided with a closed shell 9.

[0023] Among them, the wire protection block 3 and the buffer spring 5 are evenly staggered, the wire protection block 3 is located on the opposite side of the fastening plate 6, and the front and rear sides of the fastening plate 6 are penetrated with wire holes. The opposite sides of the fastening plate 6 are fixedly connected with wiring contacts 10, and the filter is connected to the power supply through the contact contacts 10 on the opposite sides of the fastening plates 6 on the front and rear sides. The four inner walls of the closed shell 9 are provided with a second slide groove, and the outer wall of the connecting frame 8 is slidably connected to the inner side of the second slide groove. The auxiliary bottom shell 1 is stored in the inner side of the closed shell 9 with the help of the telescopic column 7. The outer walls of the bottom shell 1 and the connecting frame 8 are fitted with the inner wall of the closed shell 9. The front and rear sides of the closed shell 9 are provided with embedding holes 11, which are embedded with the wire protection block 3. The upper side of the closed shell 9 is embedded with a heat dissipation fan 12, which can discharge the heat generated inside the device from the device to prevent affecting the filter. The left and right sides of the closed shell 9 are symmetrically connected with fixed blocks 13 front and back, and the upper side of the fixed block 13 is provided with screw holes 14, which can fix the closed shell 9.

[0024] Working principle: When the device is used, the filter is installed inside the installation cavity 2, and the fastening plates 6 on the front and rear sides clamp the filter, and then the power supply is connected through the contact contacts 10 on the opposite sides of the fastening plates 6 on the front and rear sides, and the buffer springs 5 ​​on the front and rear sides push the fastening plates 6 to indirectly clamp the filter. At this time, the filter is stably clamped inside the installation cavity 2 and can buffer the collision and vibration of the outside world. Then, the bottom shell 1 is stored to the inside of the closed shell 9 through the telescopic column 7. At this time, the connecting frame 8 can limit the bottom shell 1, and then the closed shell 9 is fixed through the screw holes 14 on the left and right sides. When there is an external collision , the collision will contact the closed shell 9 without causing a significant impact on the bottom shell 1. When disassembling and replacing, it is only necessary to release the screw holes 14 on both sides, and then lift the closed shell 9 upward to replace the internal filter. The external wires are inserted into the inside of the device through the wire holes 4 opened on the inner side of the wire protection block 3 and connected to the wiring contacts 10 on the opposite side of the fastening plate 6. There is no need to reconnect the wires during installation and replacement. This design can protect the wires and prevent the wires from breaking due to frequent replacement and installation of the filter. A heat dissipation fan 12 is provided to discharge the heat generated inside the device to prevent the filter from being affected.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0026] 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 pre-filter protection device, comprising a bottom housing (1), characterized in that: The upper side of the bottom shell (1) is provided with an installation cavity (2), the front and rear sides of the installation cavity (2) are penetrated by a wire protection block (3), the wire protection block (3) is penetrated by a wire hole (4), the front and rear side walls inside the installation cavity (2) are fixedly connected with a buffer spring (5), the opposite sides of the buffer spring (5) are fixedly connected with a fastening plate (6), the left and right side walls inside the installation cavity (2) are provided with a first slide groove, the left and right side walls of the fastening plate (6) are slidably connected to the inner side of the first slide groove, the four corners of the upper side of the bottom shell (1) are movably embedded with telescopic columns (7), the upper side of the telescopic columns (7) is fixedly connected with a connecting frame (8), and the upper side of the bottom shell (1) is movably provided with a closed shell (9).

2. A pre-filter protection device according to claim 1, characterized in that: The wire protection block (3) and the buffer spring (5) are evenly and staggeredly arranged, and the wire protection block (3) is located on the opposite side of the fastening plate (6).

3. A pre-filter protection device according to claim 1, characterized in that: Wiring holes are provided through the front and rear sides of the fastening plate (6), and wiring contacts (10) are fixedly connected to the opposite sides of the fastening plate (6).

4. A pre-filter protection device according to claim 1, characterized in that: The four inner walls of the closed shell (9) are all provided with second sliding grooves, and the outer wall of the connecting frame (8) is slidably connected to the inner side of the second sliding grooves.

5. A pre-filter protection device according to claim 1, characterized in that: The outer walls of the bottom shell (1) and the connection frame (8) are fitted with the inner walls of the closed shell (9); the front and rear sides of the closed shell (9) are provided with engaging holes (11); the engaging holes (11) are engaged with the wire protection block (3).

6. A pre-filter protection device according to claim 1, characterized in that: A heat dissipation fan (12) is embedded on the upper side of the closed shell (9), and fixing blocks (13) are symmetrically connected to the left and right sides of the closed shell (9) in a front-to-back manner, and screw holes (14) are provided on the upper side of the fixing blocks (13).

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