CN216213989U - Connection structure of radio frequency device - Google Patents
Connection structure of radio frequency device Download PDFInfo
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- CN216213989U CN216213989U CN202122458996.9U CN202122458996U CN216213989U CN 216213989 U CN216213989 U CN 216213989U CN 202122458996 U CN202122458996 U CN 202122458996U CN 216213989 U CN216213989 U CN 216213989U
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Abstract
The embodiment of the utility model discloses a connection structure of a radio frequency device, which relates to the technical field of electrical elements and comprises the following components: the cover plate is provided with an accommodating cavity, the top of the accommodating cavity of the cover plate is provided with an opening, the bottom of the accommodating cavity of the cover plate is provided with a first through hole, and the side wall of the accommodating cavity is provided with internal threads; the cross section of the debugging rod is matched with the first through hole; the locking part comprises an operation part and a locking part which are fixedly connected, the locking part is provided with an external thread matched with the internal thread, the operation part and the locking part are configured to surround the debugging rod, and the distance between the locking part and the debugging rod is gradually increased from the operation part along the axial direction of the debugging rod; the medium is arranged in and holds the chamber, and is located between locking part and the debugging pole, compresses tightly the debugging pole under the effect of retaining member. By using the connecting structure of the radio frequency device, the debugging rod and the cover plate are prevented from being screwed when the debugging rod and the cover plate are connected, the debugging rod is free from generating fragments, the structural damage is reduced, and the operation is convenient.
Description
Technical Field
The utility model relates to the technical field of electrical elements, in particular to a connecting structure of a radio frequency device.
Background
With the development of scientific technology, the signal propagation efficiency and the accuracy and integrity level are gradually improved. Tools used for radio frequency signals include, but are not limited to, filters, duplexers, combiners, tower top amplifiers, and the like. The filter can separate useful signals from noise, improve the anti-interference performance and the signal-to-noise ratio of the signals, filter frequency components which are not interested, improve the analysis precision and separate single frequency components from complex frequency components. The radio frequency coaxial connector can be used for transmitting transverse electromagnetic waves; the dual-core symmetric rf connector can be used mainly for transmitting digital signals with a not too high transmission rate, and so on.
In the correlation technique, the radio frequency product joint comprises a debugging rod with an external thread and a cover plate with an internal thread, the screw rod is in threaded fit connection with the cover plate for debugging, and the screw rod is locked on the cover plate through a nut. The screw rod is high in cost, and scraps are easily generated in the screwing process of the debugging rod and the cover plate, so that the structure of the screw rod and the cover plate is damaged; the screw rod can be locked on the cover plate only by adjusting the screw rod and the nut in the debugging process, and the time consumption is long.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to solve the above problems in the prior art, and provides a connection structure of a radio frequency device, including: the cover plate is provided with an accommodating cavity, the top of the accommodating cavity of the cover plate is provided with an opening, the bottom of the accommodating cavity of the cover plate is provided with a first through hole, and the side wall of the accommodating cavity is provided with internal threads; the cross section of the debugging rod is matched with the first through hole; the locking part comprises an operation part and a locking part which are fixedly connected, the locking part is provided with an external thread matched with the internal thread, the operation part and the locking part are configured to surround the debugging rod, and the distance between the locking part and the debugging rod is gradually increased from the operation part along the axial direction of the debugging rod; the medium is arranged in the accommodating cavity and located between the locking portion and the debugging rod, and the medium is configured to press the debugging rod under the action of the locking piece.
Preferably, the operating portion includes a second through hole, the locking portion includes a third through hole, the second through hole and the third through hole are axially communicated and coaxial with the first through hole, and the aperture of the third through hole gradually increases from the second through hole along the axial direction thereof.
In any of the above aspects, the operating portion is preferably provided with a guide surface inclined with respect to an axial direction thereof along a circumferential direction of the second through hole.
In any one of the above aspects, preferably, the locking part further includes an inner wall surface, the inner wall surface forms a third through hole inclined with respect to an axial direction thereof, and the medium is located between the inner wall surface and the debugging rod.
In any of the above aspects, preferably, the operation portion and the lock portion are integrally formed.
In any of the above schemes, preferably, the medium is a circular truncated cone structure provided with a channel, and the channel is coaxial with the first through hole.
In any of the above aspects, preferably, the medium further includes an inner peripheral surface and an outer peripheral surface, the inner peripheral surface forms a channel, the inner peripheral surface is parallel to the axial direction of the inner peripheral surface, the outer peripheral surface is inclined to the axial direction of the inner peripheral surface, the inner side of the locking portion presses against the outer peripheral surface, and the inner peripheral surface presses against the debugging rod.
In any one of the above aspects, preferably, the medium is configured to be deformed by being pressed by the lock portion and the debugging lever.
In any of the above aspects, the cross-sectional diameter of the operation portion is preferably larger than the opening diameter.
In the above aspect, it is further preferable that the operation portion is a nut having a smooth inner ring.
Based on the connecting structure of the radio frequency device, the inclination is arranged on the inner side of the locking part, and the medium is arranged between the locking part and the debugging rod, so that the medium is deformed in the process of screwing the locking part on the cover plate to lock the debugging rod, the external thread arranged on the debugging rod is avoided, the structural damage of the debugging rod is reduced, the screwing operation is reduced, and the debugging convenience is improved.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of a connection structure of an RF device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of section A-A;
FIG. 3 is a schematic structural diagram of an embodiment of a cover plate;
FIG. 4 is a schematic structural diagram of an embodiment of a debugging rod;
FIG. 5 is a schematic structural view of an embodiment of a retaining member;
FIG. 6 is a schematic structural view of another embodiment of a retaining member;
FIG. 7 is a schematic structural diagram of an embodiment of a media.
Reference numerals: 1-cover plate; 11-a housing chamber; 12-an opening; 13-a first via; 2-debugging rod; 3-a locking member; 31-an operating part; 311-a second via; 312-a guide surface; 32-a locking part; 321-a third via; 322-inner wall surface; 4-a medium; 41-channel; 42-inner peripheral surface; 43-outer peripheral surface.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
A screw rod is screwed into a threaded hole in the cover plate by using radio frequency products such as a lower cavity filter and the like, the radio frequency products go deep into the cavity of the filter for tuning, and the screw rod is connected to the cover plate by using a nut after tuning is completed. Wherein, need adjustment nut many times and then adjust the length of the cavity of screw rod deepening wave filter in harmonious process. The nut and the screw rod are connected in a threaded manner, and the screw rod and the cover plate are connected in a threaded manner, so that chips are easily generated at the threaded position by screwing threads in the tuning process. And he tunes and locks through the mode of threaded connection, and complex operation.
Embodiments of the present invention are directed to solve the technical problems in the related art, and provide a connection structure of a radio frequency device. FIG. 1 is a schematic structural diagram of a connection structure of an RF device according to an embodiment of the present invention; FIG. 2 is a schematic structural view of section A-A; fig. 3 is a schematic structural diagram of an embodiment of a cover plate, as shown in fig. 1 to 3, the connection structure of the radio frequency device may include a cover plate 1, a debugging rod 2, a locking member 3 and a medium 4, wherein the cover plate 1 may be provided with an accommodating cavity 11, the cover plate 1 is provided with an opening 12 at the top of the accommodating cavity 11, the bottom of the accommodating cavity is provided with a first through hole 13, and the side wall of the accommodating cavity 11 is provided with an internal thread; the cross section of the debugging rod 2 can be matched with the first through hole 13; the locking member 3 may include an operating portion 31 and a locking portion 32 fixedly connected, the locking portion 32 is provided with an external thread matching the internal thread, the operating portion 31 and the locking portion 32 are configured to surround the debugging rod 2, and a distance from the locking portion 32 to the debugging rod 2 gradually increases from the operating portion 31 in an axial direction of the debugging rod 2; the medium 4 can be placed in the accommodating cavity 11 and is positioned between the locking part 32 and the debugging rod 2, and the medium 4 is configured to lock the debugging rod 2 under the action of the locking part 3.
In this embodiment, the receiving cavity 11 formed in the cover plate 1 may be in the shape of a circular groove, the inner side wall of the circular groove is provided with threads, and the top of the circular groove is provided with an opening 12 and the bottom of the circular groove is provided with a first through hole 13. The first through hole 13 may communicate the accommodating chamber 11 with the outside of the cover plate 1. The tuning rod 2 can be tuned from the accommodation cavity 11 through the first through hole 13 into the cavity of the cavity filter. In one embodiment, the debugging rod 2 may be a cylindrical structure with one end being in a hemispherical shape. Fig. 4 is a schematic structural view of an embodiment of a tuning rod, and as shown in fig. 4, the tuning rod 2 is different from a screw rod in the related art, and the outer side surface of the tuning rod is not provided with a thread structure, so that the tuning rod can be more smoothly tuned by using the tuning rod, and the operation is convenient. The other end of the debugging rod 2 shown in fig. 4 is provided with a groove, and an auxiliary clamping mechanism can be used to prevent the debugging rod 2 from completely extending into the accommodating cavity 11.
The operating part 31 of the locking member 3 can be arranged outside the cover plate 1, and is used for adjusting the screwing depth of the locking part 32 fixedly connected with the cover plate 1 into the accommodating cavity 11 outside the cover plate 1. In one embodiment, the diameter of the cross section of the operation portion 31 may be larger than the diameter of the opening 12, and the design in this way can prevent the operation portion 31 from being improperly operated and screwed into the accommodating cavity 11 through the opening 12, or damage to the structure of the cover plate 1 at the opening 12; the locking part 32 can be prevented from screwing into the accommodating cavity 11 too long, extrusion damage is caused to the bottom of the accommodating cavity 11, the phenomenon that threads on the inner side wall of the accommodating cavity 11 are disengaged from the threads of the locking part 32 in the matching process can be prevented, and the structural safety is further improved.
Fig. 5 is a schematic structural view of an embodiment of the locking member, and as shown in fig. 2 and 5, the locking portion 32 may be a cylindrical structure provided with an external thread, the outer side of the locking portion is provided with an external thread, the inner side of the locking portion 32 is smooth, and the inner side of the locking portion 32 is provided with a slope of a predetermined angle, that is, the side wall of the locking portion 32 is gradually thinned from the position where the operation portion 31 is connected. It can also be said that the distance from the center axis to the inside of the side wall of the lock portion 32 gradually increases from the position where the operation portion 31 is connected.
In accordance with the inner slope of the side wall of the locking portion 32, the medium 4 of the present embodiment may have a truncated cone structure provided with the channel 41, and the channel 41 is disposed coaxially with the first through hole 13. Fig. 7 is a schematic structural diagram of an embodiment of the medium, and as shown in fig. 2 and 7, the diameter of the channel 41 may be the same as the cross-sectional diameter of the debugging rod 2 or slightly larger than the cross-sectional diameter of the debugging rod 2 within an allowable range. Referring to fig. 7, the medium 4 may further include an inner circumferential surface 42 and an outer circumferential surface 43, wherein the inner circumferential surface 42 forms a cylindrical passage 41, and the inner circumferential surface 42 may be parallel to the axial direction of the medium 4, i.e., the distance from any position of the inner circumferential surface 42 to the central axis of the passage 41 may be communicated. The outer peripheral surface 43 may be inclined with respect to the central axis of the passage 41, i.e., the distance from the outer peripheral surface 43 to the central axis of the passage 41 gradually decreases from a position contacting the cover plate 1 to a position close to the operating portion 31. The inner side of the locking part 32 presses against the outer peripheral surface 43, and the inner peripheral surface 42 presses against the adjusting lever 2.
The media 4 shown in fig. 2 has a side wall whose thickness gradually increases from top to bottom, and a slope that is nearly complementary to the inside of the side wall of the locking portion 32 is formed on the outside of the media 4. The medium 4 is configured to be deformed by being pressed by the lock portion 32 and the debugging lever 2. On one hand, the medium 4 can be conveniently placed into the inner side of the locking part 32 when the locking part 32 is screwed with the internal thread of the cover plate 1 from the upper end; on the other hand, in the process of operating the operating part 31 to move the locking part 32 downwards, the inner side of the side wall of the locking part 32 presses the outer side of the medium 4, so that the medium 4 is deformed and presses the debugging rod 2 until the debugging rod 2 is locked, and the locking part do not move relatively under the action of external force of a set value. In one embodiment, the medium 4 can be pressed by the inner side of the locking part 32 to be elastically deformed and press the adjusting rod 2; in another embodiment, the medium 4 may be pressed by the inner side of the locking portion 32 to be plastically deformed and press the debugging lever 2.
In one embodiment, the medium 4 may be a truncated cone-shaped structure made of a material such as silicon rubber or rubber, and a channel 41 is provided through the medium at a central axis position, and the debugging rod 2 may pass through the channel 41. As shown in fig. 2, the locking portion 32 may further include an inner wall surface 322, the inner wall surface 322 surrounds the third through hole 321 and is inclined with respect to the axial direction of the central axis of the third through hole 321, and the medium 4 may be located between the inner wall surface 322 and the debugging rod 2. In this embodiment, the locking portion 32 may be a cylindrical structure having a thread on the outer periphery thereof, and an inner wall surface 322 inclined with respect to the central axis is provided inside the cylindrical structure. Referring to fig. 2, when the operation portion 31 is operated outside the cover plate 1 to screw the locking portion 32 into the accommodating chamber 11, the locking portion 32 moves downward. The locking part 32 and the outside of the medium 4 are in contact state from the separated state, and the operation part 31 is rotated continuously, so that the thread on the outside of the locking part 32 is further screwed with the thread arranged on the inner side wall of the accommodating cavity 11. The lock portion 32 continues to move downward, and the inner wall surface 322 of the lock portion 32 generates pressure on the medium 4.
Since the medium 4 is disposed at the bottom of the accommodating chamber 11, it cannot displace relative to the cover plate 1 in the vertical direction, and the medium 4 deforms under the pressure of the locking portion 32. The pressure of the locking part 32 to the medium 4 is transmitted to the debugging rod 2 through the medium 4, so that the debugging rod 2 and the medium 4 are forced not to generate relative displacement, and the debugging rod 2 can be locked on the cover plate 1 at a set position by operating the operation part 31.
Fig. 6 is a schematic structural view of another embodiment of the locking member, as shown in fig. 5 and 6, in some embodiments, the operating portion 31 includes a second through hole 311, the locking portion 32 includes a third through hole 321, the second through hole 311 and the third through hole 321 are axially communicated and are coaxial with the first through hole 13, and the diameter of the third through hole 321 gradually increases from the second through hole 311 along the axial direction of the central axis of the third through hole 321. The second through hole 311 and the first through hole 13 are arranged to be the same as the central axis and the aperture, so that structural damage to the debugging rod 2 and the cover plate 1 when the debugging rod 2 penetrates into the bottom of the accommodating cavity 11 can be avoided.
In some embodiments, the hemispherical end of the adjustment rod 2 is inserted into the locking member 3 through the second through hole 311, and then the medium 4 is sleeved on the adjustment rod 2 from the hemispherical end of the adjustment rod 2 through the channel 41, and the obtained whole is still inserted into the accommodating cavity 11 of the cover plate 1 through the opening 12 from the hemispherical end of the adjustment rod 2. The tuning operation is performed by adjusting the relative position of the tuning rod 2 and the cover plate 1. After tuning is completed, the operating part 31 is screwed to enable the locking part 32 to move towards the inside of the accommodating cavity 11, so that the medium 4 is extruded, and the effect that the debugging rod 2 is locked on the cover plate 1 is achieved. Wherein, in the process of locking the debugging rod 2, the relative position of the debugging rod 2 and the cover plate 1 is unchanged. The operation unit 31 is provided in this embodiment to extend the structure of the locking unit 32 to the outside of the cover plate 1, so that the operator can conveniently rotate the locking unit 32 and the cover plate 1.
In some embodiments, the operating portion 31 is a smooth-lined nut that may be welded to the locking portion 32. In one example, the operation portion 31 may be a square nut with a smooth inner ring, a hexagonal nut with a smooth inner ring, an octagonal nut with a smooth inner ring, or the like. The operation part 31 is provided with the nut with the smooth inner ring, so that the debugging rod 2 can pass more smoothly on one hand, and the debugging rod is convenient to move in the tuning process; on the other hand, the operation part 31 can be operated outside the cover plate 1 by using an auxiliary tool, so that the operation difficulty of an operator is reduced. In other embodiments, as shown in fig. 2, 5 and 6, the operation portion 31 and the locking portion 32 may be integrally formed.
In some embodiments, with continued reference to fig. 2, the operating portion 31 is provided with a guide surface 312 inclined with respect to the axial direction thereof along the circumferential direction of the second through hole 311, the guide surface 312 gradually approaching the debugging rod 2 inserted into the first through hole 311 from the upper end of the first through hole 311. Referring to fig. 2, 4 and 6, one end of the debugging rod 2 may be hemispherical, and the guiding surface 312 provided on the operation portion 31 may be smoothly inserted into the second through hole 311 in cooperation with the debugging rod 2, thereby reducing the precision requirement on the operator and improving the operation efficiency.
The debugging rod 2 is not provided with external threads in the embodiment, the debugging rod 2 can be directly held to reciprocate along the central axis of the first through hole 13 or the opening 12 to perform the tuning operation of moving up and down, the tuning efficiency caused by thread fit in the related art is prevented from being low, and chips are generated between the debugging rod 2 and the cover plate 1. In the correlation technique, use the screw rod as debugging pole to tune and locking operation, use the screw rod in-process repeatedly, the external screw thread of screw rod and the apron setting receive structural damage easily with its complex external screw thread extrusion atress, produce the piece. The debris easily drops into the cavity of wave filter in screw rod tuning process, forms potential threat to the function normal operating of wave filter and the structure safety of wave filter easily.
In this embodiment, after tuning is completed, the operating portion 31 disposed outside the cover plate 1 drives the locking portion 32 to extrude the medium 4, so that the medium 4 is filled in the space between the locking portion 32 and the debugging rod 2, the debugging rod 2 is limited to move in the up-and-down direction shown in fig. 2, and the debugging rod 2 is locked. On the one hand, the tuning time can be saved, on the other hand, the position of the tuning rod 2 is prevented from being changed when the tuning rod 2 is locked, and the tuning operation is separated from the locking operation.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A connection structure of a radio frequency device, comprising:
the cover plate (1) is provided with an accommodating cavity (11), the cover plate (1) is provided with an opening (12) at the top of the accommodating cavity (11), the bottom of the cover plate is provided with a first through hole (13), and the side wall of the accommodating cavity (11) is provided with internal threads;
the cross section of the debugging rod (2) is matched with the first through hole (13);
the locking piece (3) comprises an operation part (31) and a locking part (32) which are fixedly connected, the locking part (32) is provided with an external thread matched with the internal thread, the operation part (31) and the locking part (32) are configured to surround the debugging rod (2), and the distance between the locking part (32) and the debugging rod (2) is gradually increased from the operation part (31) along the axial direction of the debugging rod (2);
the medium (4) is arranged in the accommodating cavity (11) and is positioned between the locking part (32) and the debugging rod (2), and the medium (4) is configured to press the debugging rod (2) under the action of the locking part (3).
2. The connection structure of radio frequency devices according to claim 1, wherein the operating portion (31) comprises a second through hole (311), and the locking portion (32) comprises a third through hole (321), the second through hole (311) and the third through hole (321) being in axial communication and coaxial with the first through hole (13).
3. The connection structure of a radio frequency device according to claim 2, wherein the operation portion (31) is provided with a guide surface (312) inclined with respect to an axial direction thereof in a circumferential direction of the second through hole (311).
4. The connection structure of a radio frequency device according to claim 2, wherein the lock portion (32) further includes an inner wall surface (322), the inner wall surface (322) forms the third through hole (321) inclined with respect to an axial direction thereof, and the medium (4) is located between the inner wall surface (322) and the debugging rod (2).
5. The connection structure of a radio frequency device according to any one of claims 1 to 4, wherein the operation portion (31) is integrally formed with the lock portion (32).
6. The connection structure of radio frequency devices according to any one of claims 1 to 4, wherein the medium (4) is a truncated cone-shaped structure provided with a channel (41), the channel (41) being arranged coaxially with the first through hole (13).
7. The connection structure of a radio frequency device according to claim 6, wherein the medium (4) further includes an inner peripheral surface (42) and an outer peripheral surface (43), the inner peripheral surface (42) forms the passage (41), the inner peripheral surface (42) is parallel to an axial direction thereof, the outer peripheral surface (43) is inclined to the axial direction thereof, an inner side of the locking portion (32) presses the outer peripheral surface (43), and the inner peripheral surface (42) presses the debugging rod (2).
8. The connection structure of a radio frequency device according to claim 7, wherein the medium (4) is configured to be deformed by being pressed by the locking portion (32) and the debugging lever (2).
9. The connection structure of a radio frequency device according to claim 1, wherein a cross-sectional diameter of the operation portion (31) is larger than a diameter of the opening (12).
10. The connection structure of a radio frequency device according to claim 1, wherein the operation portion (31) is a nut having a smooth inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122458996.9U CN216213989U (en) | 2021-10-12 | 2021-10-12 | Connection structure of radio frequency device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122458996.9U CN216213989U (en) | 2021-10-12 | 2021-10-12 | Connection structure of radio frequency device |
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| CN216213989U true CN216213989U (en) | 2022-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114914649A (en) * | 2022-05-19 | 2022-08-16 | 昆山立讯射频科技有限公司 | Filter and communication apparatus |
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2021
- 2021-10-12 CN CN202122458996.9U patent/CN216213989U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114914649A (en) * | 2022-05-19 | 2022-08-16 | 昆山立讯射频科技有限公司 | Filter and communication apparatus |
| CN114914649B (en) * | 2022-05-19 | 2023-10-20 | 苏州立讯技术有限公司 | Filter and communication device |
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Address after: Building 3, 5, and auxiliary buildings of the second phase standard factory building, No. 99 Xubang Road, Wuzhong Economic Development Zone, Suzhou City, Jiangsu Province, 215324 Patentee after: Suzhou Lixun Technology Co.,Ltd. Address before: 215324 room 2, No.158, Jinchang Road, Jinxi Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: KUNSHAN LIXUN RF TECHNOLOGY CO.,LTD. |