A shockproof cavity filter

Abstract

The utility model discloses a shockproof cavity filter relates to filter technical field, including the casing, the outer surface left and right sides of casing all are fixedly connected with mounting panel, the lower surface of mounting panel all is fixedly connected with buffer pad, the outer surface downside of casing evenly distributes and is equipped with recess, the inner surface left and right sides of recess all are fixedly installed with damping spring rod, and damping spring rod is composed by damper and telescopic spring, and the damping spring rod inside same recess is opposite one end fixedly connected with same sheet of spring, the lower end of spring is rotatably connected with same energy absorption board through the axle seat. Compared with the prior art ordinary filter, the shockproof cavity filter not only improves the installation stability of the whole equipment, but also can effectively buffer the installation connection point and the whole equipment, thereby preventing the frequency drift caused by the deformation of the resonant cavity, and greatly improving the equipment use stability.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a shockproof cavity filter. Background Technology

[0002] Cavity filters are a typical frequency selective device that effectively suppresses unwanted signals, preventing them from passing through the cavity filter, while allowing only useful signals to pass smoothly. Therefore, the performance of cavity filters directly affects the quality of the entire communication system. Cavity filters are one of the most important components in modern microwave and millimeter-wave communication systems and are widely used in aviation, aerospace, radar, communications, electronic countermeasures, broadcasting and television, and various electronic testing equipment.

[0003] For example, patent application number 202420008286.7 discloses a waterproof cavity filter. This utility model, through the combined action of a water baffle and a double sealing structure, greatly reduces the possibility of water vapor entering the cavity filter through gaps, providing all-round waterproof protection. The outer sealing plug provides an initial waterproof barrier, while the inner sealing ring provides secondary protection, ensuring protection even if the outer seal fails. The size and position design of the drainage groove makes it easy for water to drain from the sealing groove, while preventing external water from entering and reducing the contact between the inner sealing ring and water, thereby reducing the risk of corrosion. By designing the top surface of the placement cavity to be higher than the bottom surface of the sealing groove, even if water vapor accumulates, it will not directly affect the inner sealing ring. Before the water vapor accumulates to a certain level and contacts the sealing ring, the drainage groove has already drained most of the water vapor, which reduces the workload of the sealing ring. However, when the filter is connected and used, the connecting parts will transmit vibrations between the filter and the filter. The vibration force acts directly on the filter, which may cause the internal components to loosen or the resonant cavity to deform, thus affecting the normal and stable use of the equipment.

[0004] Therefore, in view of this, we studied and improved the existing structure to address its shortcomings, and proposed a shock-resistant cavity filter. Utility Model Content

[0005] The purpose of this invention is to provide a shock-resistant cavity filter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shock-resistant cavity filter, comprising a housing, mounting plates fixedly connected to both the left and right sides of the outer surface of the housing, buffer pads fixedly connected to the lower surface of each mounting plate, grooves evenly distributed on the lower side of the outer surface of the housing, damping spring rods fixedly installed on both the left and right sides of the inner surface of each groove, the damping spring rods being composed of a damper and a telescopic spring, and the same spring sheet fixedly connected to opposite ends of the damping spring rods inside the same groove, the lower end of the spring sheet being rotatably connected to the same energy-absorbing plate via a bearing seat.

[0007] Preferably, the upper edge of the housing is provided with a blocking groove, and the outer surface of the housing is provided with through cavities all around.

[0008] Preferably, the inner surface of the through cavity is set as an inclined surface, and the through cavity is connected to the bottom of the blocking groove.

[0009] Preferably, a cover is provided on the upper side of the housing, and a sealing strip is fixedly connected to the lower edge of the cover.

[0010] Preferably, a sealing plug is fixedly connected to the inner surface of the cover, and the sealing plug matches the blocking groove.

[0011] Preferably, a sealing gasket is fixedly connected to the inner surface of the cap inside the sealing plug, and the sealing gasket matches the inner edge of the upper end of the blocking groove, and the sealing strip matches the outer edge of the upper end of the blocking groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the arrangement of buffer pads, grooves, damping spring rods, spring sheets, and energy-absorbing plates, ensures that when the entire device is installed via the mounting plate and connectors, the buffer pads preferentially contact the connectors. This means that vibrations transmitted through the connectors to the mounting plate are absorbed and buffered by the buffer pads. Simultaneously, the entire housing is fitted to the connectors via the energy-absorbing plate. The compression during installation causes the energy-absorbing plate to compress and expand the spring sheets. The elastic force of the spring sheets allows the energy-absorbing plate to adhere tightly to the connectors and to tension the entire installation area, thereby increasing installation stability. Furthermore, vibrations generated by the connectors are transmitted through the energy-absorbing plate, which distributes the vibration force evenly to each spring sheet, thus dispersing and weakening the vibration force. The spring sheets, under pressure and expansion, compress and expand, with both ends pressing against the damping spring rods along the grooves. The damping spring rods, using dampers, buffer the deformation force generated by the spring sheets, thus buffering the vibration force. This not only improves the overall installation stability of the device but also effectively buffers the installation connection points and the entire device, preventing frequency drift caused by resonant cavity deformation and significantly improving the stability of the device during use.

[0014] 2. This utility model, through the arrangement of a blocking groove, a through cavity, a cover, a sealing strip, a sealing plug, and a sealing gasket, seals the upper side of the housing to form a sealed space. The sealing strip can adhere to the outer edge of the upper edge of the housing for sealing, the sealing plug is inserted into the blocking groove for middle layer sealing, and the sealing gasket adheres to the inner edge of the upper edge of the housing for inner layer sealing. Through triple sealing, the sealing capability of the entire device can be greatly improved. Even if the outer seal ages, the middle and inner seals still provide protection. Furthermore, even if the outer seal ages, leaked water will be blocked by the blocking groove, and the water deposited in the blocking groove will be directly discharged through the through cavity, thereby avoiding water vapor accumulation and greatly improving the sealing performance of the entire device and enhancing the waterproof effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 2 This is a bottom view of the housing and a schematic diagram of the disassembled energy-absorbing plate of this utility model;

[0017] Figure 3 This is a schematic diagram of the cap removal and cross-sectional structure of the present invention.

[0018] In the diagram: 1. Housing; 2. Mounting plate; 3. Buffer pad; 4. Groove; 5. Damping spring rod; 6. Spring; 7. Energy-absorbing plate; 8. Blocking groove; 9. Through cavity; 10. Cover; 11. Sealing strip; 12. Sealing plug; 13. Sealing gasket. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-3 As shown, a shock-resistant cavity filter includes a housing 1. Mounting plates 2 are fixedly connected to both the left and right sides of the outer surface of the housing 1. Buffer pads 3 are fixedly connected to the lower surface of the mounting plates 2. Grooves 4 are evenly distributed on the lower side of the outer surface of the housing 1. Damping spring rods 5 are fixedly installed on both the left and right sides of the inner surface of the grooves 4. The damping spring rods 5 are composed of a damper and a telescopic spring. The damping spring rods 5 inside the same groove 4 are fixedly connected to opposite ends of the same spring piece 6. The lower end of the spring piece 6 is rotatably connected to the same energy-absorbing plate 7 through a bearing.

[0021] By adopting the above technical solution, when the entire equipment is installed through the mounting plate 2 and the connector, the buffer pad 3 will contact the connector first. That is, the vibration transmitted by the mounting plate 2 through the connector will be absorbed and buffered by the buffer pad 3.

[0022] The entire housing 1 is attached to the connector via the energy-absorbing plate 7. The compression generated during installation will cause the energy-absorbing plate 7 to compress the spring sheet 6 and expand. The elastic force of the spring sheet 6 can make the energy-absorbing plate 7 fit tightly against the connector and tension the entire equipment installation part, thereby increasing the installation stability.

[0023] The vibration generated by the connector is transmitted through the energy-absorbing plate 7. The energy-absorbing plate 7 can evenly distribute the vibration force to each spring 6, thereby dispersing and weakening the vibration force. The spring 6 is compressed and expanded under force, and the two ends will press the damping spring rod 5 along the groove 4 to both sides. The damping spring rod 5 can buffer the deformation force generated by the spring 6 by using the damper, that is, buffer the vibration force.

[0024] Furthermore, the upper edge of the housing 1 is provided with a blocking groove 8, and the outer surface of the housing 1 is provided with a through cavity 9 around the perimeter; the inner surface of the through cavity 9 is set as an inclined surface, and the through cavity 9 is connected to the bottom of the blocking groove 8.

[0025] By adopting the above technical solution, the blocking groove 8 can prevent water vapor from leaking into the housing 1, and the through cavity 9 can discharge the water vapor inside the blocking groove 8 to avoid water vapor accumulation.

[0026] Furthermore, a cover 10 is provided on the upper side of the housing 1, and a sealing strip 11 is fixedly connected to the lower edge of the cover 10.

[0027] By adopting the above technical solution, the cover 10 seals the upper side of the shell 1 to form a sealed space. At this time, the sealing strip 11 can fit against the outer edge of the upper end of the shell 1 to form an outer seal.

[0028] Furthermore, a sealing plug 12 is fixedly connected to the inner surface of the cover 10, and the sealing plug 12 matches the blocking groove 8.

[0029] By adopting the above technical solution, when the cover 10 is installed, the sealing plug 12 will be inserted into the blocking groove 8 to perform a middle layer seal.

[0030] Furthermore, a sealing gasket 13 is fixedly connected to the inner surface of the cap 10 inside the sealing plug 12, and the sealing gasket 13 matches the inner edge of the upper end of the blocking groove 8, and the sealing strip 11 matches the outer edge of the upper end of the blocking groove 8.

[0031] By adopting the above technical solution, the sealing gasket 13 will fit against the inner side of the upper edge of the housing 1 to perform inner layer sealing.

[0032] Working principle: When using this shockproof cavity filter, firstly, the cover 10 seals the upper side of the housing 1, forming a sealed space. At this time, the sealing strip 11 can fit against the outer edge of the upper end of the housing 1 for sealing. The sealing plug 12 is inserted into the blocking groove 8 for middle layer sealing, and the sealing gasket 13 fits against the inner edge of the upper end of the housing 1 for inner layer sealing. Through triple sealing, the sealing ability of the entire device can be greatly improved. Even if the outer seal ages, the middle and inner seals still provide protection. Moreover, even if the outer seal ages, the leaked water will be blocked by the blocking groove 8. The water deposited in the blocking groove 8 will be directly discharged through the passage 9, thereby avoiding water vapor accumulation. When the entire device is installed with the mounting plate 2 and the connector, the buffer pad 3 will preferentially contact the connector, that is, the part of the mounting plate 2 is open to the connector. Vibrations transmitted through the connector are absorbed and buffered by the buffer pad 3. At the same time, the entire housing 1 is attached to the connector through the energy-absorbing plate 7. The compression generated during installation will cause the energy-absorbing plate 7 to compress the spring 6 and expand. The elastic force of the spring 6 can make the energy-absorbing plate 7 fit tightly against the connector and tighten the entire equipment installation part, thereby increasing the installation stability. The vibration generated by the connector will be transmitted through the energy-absorbing plate 7. The energy-absorbing plate 7 can evenly distribute the vibration force to each spring 6, thereby dispersing and weakening the vibration force. The spring 6 is compressed and expanded under force, and the two ends will press the damping spring rod 5 along the groove 4 to both sides. The damping spring rod 5 can buffer the deformation force generated by the spring 6 through the damper, that is, buffer the vibration force. This is the working principle of the vibration-damping cavity filter.

Claims

1. A shock-resistant cavity filter, comprising a housing (1), characterized in that, Mounting plates (2) are fixedly connected to both the left and right sides of the outer surface of the housing (1). Buffer pads (3) are fixedly connected to the lower surface of the mounting plates (2). Grooves (4) are evenly distributed on the lower side of the outer surface of the housing (1). Damping spring rods (5) are fixedly installed on both the left and right sides of the inner surface of the grooves (4). The damping spring rods (5) are composed of a damper and a telescopic spring. The damping spring rods (5) inside the same groove (4) are fixedly connected to the same spring piece (6) at opposite ends. The lower end of the spring piece (6) is rotatably connected to the same energy-absorbing plate (7) through a bearing seat.

2. The anti-vibration cavity filter according to claim 1, characterized in that, The upper edge of the housing (1) is provided with a blocking groove (8), and the outer surface of the housing (1) is provided with through cavities (9) all around.

3. The anti-vibration cavity filter according to claim 2, characterized in that, The inner surface of the through cavity (9) is set as an inclined surface, and the through cavity (9) is connected to the bottom of the blocking groove (8).

4. The anti-vibration cavity filter according to claim 1, characterized in that, The upper side of the housing (1) is provided with a cover (10), and a sealing strip (11) is fixedly connected to the lower edge of the cover (10).

5. A shock-resistant cavity filter according to claim 4, characterized in that, A sealing plug (12) is fixedly connected to the inner surface of the cover (10), and the sealing plug (12) matches the blocking groove (8).

6. A shock-resistant cavity filter according to claim 4, characterized in that, The inner surface of the cover (10) is fixedly connected to the sealing gasket (13) inside the sealing plug (12), and the sealing gasket (13) matches the inner edge of the upper end of the blocking groove (8), and the sealing strip (11) matches the outer edge of the upper end of the blocking groove (8).

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