Waterproof coaxial attenuator

Abstract

The waterproof coaxial attenuator comprises a heat dissipation shell, a suspended strip line attenuation piece and a pair of connectors, a cavity is formed in the heat dissipation shell, a metal cylinder is arranged in the cavity, steps are arranged at the two ends of the heat dissipation shell in a concave mode, and the suspended strip line attenuation piece is arranged in the metal cylinder; the pair of connectors is in threaded connection with the steps at the two ends of the heat dissipation shell in a matched mode, sliding grooves are formed in the end faces, facing the cavity, of the connectors in a concave mode, ejector pins are slidably connected into the sliding grooves, springs are fixed between the ejector pins and the inner bottom faces of the sliding grooves, and the outer walls of the connectors are fixedly sleeved with first waterproof rings abutting against the outer wall of the heat dissipation shell. A second waterproof ring abutting against the inner end face of the step is fixed to the end face, facing the cavity, of the connector. According to the waterproof coaxial attenuator, the ejector pin and the attenuation piece are always tightly attached through cooperation of the spring and the sliding groove, and overall assembly is more convenient and efficient through the mode that the connector is in threaded connection with the shell; and two waterproof rings are arranged, so that the attenuator has waterproof and salt mist-resistant functions.

Description

Technical Field

[0001] The present application relates to the technical field of attenuators, and in particular to a waterproof coaxial attenuator. Background Art

[0002] Attenuators are widely used in the microwave radio frequency field, such as attenuating radio frequency signals to prevent signal distortion. Existing attenuators are widely used, but existing attenuators often do not have a waterproof function, making them difficult to use outdoors. Therefore, it is very important to obtain an attenuator with a waterproof function. Utility Model Content

[0003] The utility model aims to provide a waterproof coaxial attenuator to overcome the deficiencies in the prior art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The embodiment of the present application discloses a waterproof coaxial attenuator, which is characterized by comprising a heat dissipation shell, a suspended stripline attenuation sheet and a pair of connectors, the heat dissipation shell is provided with a cavity, the cavity is provided with a metal cylinder, the left and right ends of the heat dissipation shell are both recessed with steps connected to the cavity, the front and rear side walls of the suspended stripline attenuation sheet are both fixed with spring sheets, the front and rear inner walls of the metal cylinder are symmetrically recessed with a pair of slots for respectively fitting two spring sheets to be inserted, the slots pass through the left and right ends of the cavity, the inner wall of the step is provided with an internal thread, the outer wall of the connector is provided with an external thread threadedly connected with the internal thread, a pair of connectors are respectively threadedly connected with the steps at both ends of the heat dissipation shell, a sliding groove is recessed on the end surface of the connector facing the cavity, a ejector pin is slidably connected in the sliding groove, a spring is fixed between the ejector pin and the inner bottom surface of the sliding groove, a first waterproof ring is fixedly sleeved on the outer wall of the connector to abut against the outer wall of the heat dissipation shell, and a second waterproof ring is fixed on the end surface of the connector facing the cavity to abut against the inner end surface of the step.

[0006] Preferably, in the above-mentioned waterproof coaxial attenuator, the first waterproof ring, the second waterproof ring, the cavity, the step and the metal tube are all coaxially arranged.

[0007] Preferably, in the above-mentioned waterproof coaxial attenuator, an annular limiting ring is protrudingly provided on the outer wall of the connector on the side of the first waterproof ring facing away from the cavity.

[0008] Preferably, in the above-mentioned waterproof coaxial attenuator, the annular limiting ring is integrally formed with the connector.

[0009] Preferably, in the above-mentioned waterproof coaxial attenuator, the heat dissipation housing includes a shell and a plurality of heat dissipation fins fixedly mounted on the outer wall of the shell.

[0010] Preferably, in the above-mentioned waterproof coaxial attenuator, the step diameter is larger than the diameter of the cavity.

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

[0012] The combination of the spring and the slide groove ensures that the ejector pin and the attenuation sheet are always in close contact, and the threaded connection between the connector and the housing makes the overall assembly more convenient and efficient. Two waterproof rings are provided to make the attenuator waterproof and salt spray proof, with a wider range of applications and better effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application 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 recorded in the present application. For ordinary technicians in this field, it is easy to obtain other drawings based on these drawings without creative work.

[0014] Figure 1 The figure shows a schematic diagram of the structure of a waterproof coaxial attenuator in a specific embodiment of the utility model;

[0015] Figure 2 Shown is a schematic structural diagram of a metal cylinder in a specific embodiment of the utility model. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to describe the technical solutions in the embodiments of the utility model in detail. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0017] Ginseng Figures 1-2As shown, the waterproof coaxial attenuator in this embodiment includes a heat dissipation shell 1, a suspension strip attenuation sheet 2 and a pair of connectors 3. A cavity 4 is provided in the heat dissipation shell 2, and a metal cylinder 5 is provided in the cavity 4. Steps 6 connected to the cavity 4 are recessed at both left and right ends of the heat dissipation shell 1. Shrapnel 7 is fixed on the front and rear side walls of the suspension strip attenuation sheet 2. A pair of slots 8 for respectively inserting two shrapnel 7 are symmetrically recessed on the front and rear inner walls of the metal cylinder 5. The slots 8 pass through the left and right ends of the cavity 5. An internal thread 9 is provided on the inner wall of the step 6. The connector An external thread 10 is provided on the outer wall of 3 and is threadedly connected with the internal thread 9. A pair of connectors 3 are threadedly connected with the steps 6 at both ends of the heat dissipation shell 1 respectively. A slide groove 11 is recessed on the end surface of the connector 3 facing the cavity 4. A ejector pin 12 is slidably connected in the slide groove 11. A spring 13 is fixed between the ejector pin 12 and the inner bottom surface of the slide groove 11. A first waterproof ring 14 that abuts against the outer wall of the heat dissipation shell 1 is fixedly sleeved on the outer wall of the connector 3. A second waterproof ring 15 that abuts against the inner end surface of the step 6 is fixed on the end surface of the connector 3 facing the cavity 4.

[0018] Furthermore, the first waterproof ring 14, the second waterproof ring 15, the cavity 4, the step 6 and the metal tube 5 are all coaxially arranged.

[0019] Furthermore, an annular limiting ring 16 is protrudingly provided on the outer wall of the connector 3 on the side of the first waterproof ring 14 facing away from the cavity 4 .

[0020] Furthermore, the annular limiting ring 16 and the connector 3 are formed integrally.

[0021] Furthermore, the heat dissipation housing 1 includes a shell 101 and a plurality of heat dissipation fins 102 fixedly mounted on the outer wall of the shell.

[0022] Furthermore, the diameter of the step 6 is greater than the diameter of the cavity 4 .

[0023] In this technical solution, the spring and the slide groove are used to ensure that the ejector pin and the attenuation plate are always in close contact, and the threaded connection between the connector and the housing makes the overall assembly more convenient and efficient. Two waterproof rings are provided to make the attenuator waterproof and salt spray-proof, with a wider range of applications and better effects. The attenuation plate is always in the center position through the cooperation of the spring clip and the slot, ensuring the stability of the use function.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0025] The above is only a specific implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A waterproof coaxial attenuator, characterized in that: The heat dissipation device comprises a heat dissipation shell, a suspension strip attenuation sheet and a pair of connectors, the heat dissipation shell is provided with a cavity, the cavity is provided with a metal cylinder, the left and right ends of the heat dissipation shell are both recessed with steps connected with the cavity, the front and rear side walls of the suspension strip attenuation sheet are fixed with spring sheets, the front and rear inner walls of the metal cylinder are symmetrically recessed with a pair of slots for respectively fitting two spring sheets to be inserted, the slots pass through the left and right ends of the cavity, the inner wall of the step is provided with an internal thread, the outer wall of the connector is provided with an external thread threadedly connected with the internal thread, a pair of connectors are respectively threadedly connected with the steps at both ends of the heat dissipation shell, a sliding groove is recessed on the end surface of the connector facing the cavity, a ejector pin is slidably connected in the sliding groove, a spring is fixed between the ejector pin and the inner bottom surface of the sliding groove, a first waterproof ring that abuts against the outer wall of the heat dissipation shell is fixedly sleeved on the outer wall of the connector, and a second waterproof ring that abuts against the inner end surface of the step is fixed on the end surface of the connector facing the cavity.

2. A waterproof coaxial attenuator according to claim 1, characterized in that: The first waterproof ring, the second waterproof ring, the cavity, the step and the metal tube are all coaxially arranged.

3. The waterproof coaxial attenuator according to claim 1, characterized in that: An annular limiting ring is protrudingly provided on the outer wall of the connector on the side of the first waterproof ring facing away from the cavity.

4. The waterproof coaxial attenuator according to claim 3, characterized in that: The annular limiting ring is integrally formed with the connector.

5. The waterproof coaxial attenuator according to claim 1, characterized in that: The heat dissipation shell comprises a shell and a plurality of heat dissipation fins fixedly sleeved on the outer wall of the shell.

6. The waterproof coaxial attenuator according to claim 2, characterized in that: The step diameter is larger than the diameter of the cavity.

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