Radio frequency adjusting structure

Abstract

A radio frequency adjusting structure comprises an adjusting screw and a cover plate. The adjusting screw comprises a cap part and an adjusting screw rod part located at the position of the middle axis of the cap part, the adjusting screw rod part defines the vertical direction, and the cap part is provided with an internal thread spirally surrounding in the vertical direction. The cover plate comprises a base plate part and a cylinder part protruding upwards from the base plate part, the cover plate is provided with a through hole penetrating through the cylinder part and the base plate part from top to bottom in the vertical direction, and the cylinder part is provided with an external thread spirally surrounding in the vertical direction. The screw adjusting rod part is arranged in the through hole in a penetrating mode, and the installation depth of the screw adjusting rod part relative to the cover plate can be adjusted through cooperation between the internal threads and the external threads. According to the invention, chippings are prevented from falling below the cover plate, intermodulation is improved, and the frequency modulation effect is optimized.

Description

Technical Field

[0001] The invention relates to the field of radio frequency, and in particular to a radio frequency adjustment structure. Background Art

[0002] In the existing common RF adjustment structures in the RF field, the screw and the nut are of split design. The nut is provided with an internal thread, and the screw is provided with an external thread. The screw is extended into the cover plate and is suspended on the cover plate through the mutual cooperation between the internal and external threads. The frequency is adjusted by extending the screw into different depths under the cover plate. However, since the cover plate is provided with a through hole for the screw to pass through, when the screw and the nut are of split design and the nut is provided with an internal thread and the screw is provided with an external thread, the debris generated by the spiral cooperation between the internal and external threads can easily fall into the cavity under the cover plate through the through hole. Therefore, in the common RF adjustment structure in the prior art, the debris accumulated in the cavity for a long time will affect the frequency modulation effect of the RF adjustment structure. Summary of the invention

[0003] The object of the present invention is to provide a radio frequency adjustment structure, which prevents debris from falling under the cover plate, improves intermodulation, and optimizes the frequency modulation effect.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a radio frequency adjustment structure, comprising: an adjustment screw and a cover plate, the adjustment screw comprising a cap portion and an adjustment screw rod portion located at the central axis of the cap portion, the adjustment screw rod portion defines a vertical direction, and the cap portion is provided with an internal thread spirally wrapped in the vertical direction; the cover plate comprises a base plate portion and a columnar portion protruding upward from the base plate portion, the cover plate has a through hole that penetrates the columnar portion and the base plate portion from top to bottom in the vertical direction, and the columnar portion is provided with an external thread spirally wrapped in the vertical direction; the adjustment screw rod portion is inserted into the through hole and can adjust its installation depth relative to the cover plate by relying on the cooperation between the internal thread and the external thread.

[0005] As a further improved technical solution of the present invention, the cap cover portion includes a brim portion extending in the vertical direction, the brim portion surrounds the adjusting screw portion, and the internal thread is arranged on the brim portion and faces the adjusting screw portion.

[0006] As a further improved technical solution of the present invention, the substrate portion defines a horizontal direction, the cap portion includes a base portion extending in the horizontal direction, and the base portion is integrally connected between the adjusting screw portion and the brim portion.

[0007] As a further improved technical solution of the present invention, the adjusting screw portion extends downward from the base, the extending height of the adjusting screw portion in the vertical direction is a first height H1, the extending height of the brim portion in the vertical direction is a second height H2, and the second height H2 is smaller than the first height H1.

[0008] As a further improved technical solution of the present invention, an annular space is provided between the adjusting screw portion, the base portion and the brim portion, and at least a portion of the column portion is located in the annular space.

[0009] As a further improved technical solution of the present invention, the adjusting screw portion includes an inner surface and an outer surface arranged oppositely, the bottom of the adjusting screw portion away from the base is closed and the top of the adjusting screw portion close to the base is open.

[0010] As a further improved technical solution of the present invention, the brim portion includes an inner wall surface and an outer wall surface arranged oppositely, the inner wall surface is a circular surface; the outer wall surface is a plurality of planes connected end to end, and the outer edge of the base is a polygon.

[0011] As a further improved technical solution of the present invention, the cylindrical portion includes an inner ring surface and an outer ring surface arranged oppositely, and the outer ring surface is a circular surface; the etching height of the internal thread on the inner wall surface is the same as the etching height of the external thread on the outer ring surface at a fourth height.

[0012] As a further improved technical solution of the present invention, the brim portion also includes an inner bottom surface, the cap cover portion also includes a cap opening portion, the inner bottom surface to the cap opening portion is a third height H3, the height of the column portion is H4, and the third height H3 is not less than the fourth height H4.

[0013] As a further improved technical solution of the present invention, it also includes a base, which is located below the cover plate and forms a cavity between the cover plate and the base, and the adjusting screw thread is installed on the cover plate and extends into the cavity.

[0014] Compared with the prior art, the present invention arranges an internal thread on the cap portion of the adjusting screw; an external thread on the column portion of the cover plate; when the adjusting screw rod portion is passed through the through hole on the column portion of the cover plate, the adjusting screw can rely on the cooperation between the internal thread and the external thread to adjust its installation depth relative to the cover plate to adjust the frequency. At the same time, the debris generated by the spiral cooperation between the internal and external threads is blocked by the column portion of the cover plate outside the cover plate, thereby preventing the debris from falling under the cover plate through the through hole, improving intermodulation, and further optimizing the frequency modulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a three-dimensional composite diagram of a part of the radio frequency adjustment structure of the present invention;

[0016] Figure 2 It is a three-dimensional composite diagram of a part of the radio frequency adjustment structure of the present invention from another angle;

[0017] Figure 3 It is a three-dimensional exploded view of a part of the radio frequency adjustment structure of the present invention;

[0018] Figure 4 It is a three-dimensional exploded view of a part of the radio frequency adjustment structure of the present invention from another angle;

[0019] Figure 5 yes Figure 1 A top view of the radio frequency adjustment structure of the present invention;

[0020] Figure 6 is along Figure 5 Sectional view of the middle AA line and in the combined state;

[0021] Figure 7 is along Figure 5 Cross-sectional view along the AA line and in exploded state;

[0022] Figure 8 It is a three-dimensional composite diagram of the radio frequency adjustment structure of the present invention;

[0023] Fig. 9 It is a three-dimensional diagram of a radio frequency adjustment structure of the present invention in which the adjustment screw and the cover plate are combined and the combination of the adjustment screw and the cover plate is separated from the base;

[0024] Fig.10 It is a three-dimensional diagram of the combination of the adjusting screw and the base of the radio frequency adjusting structure of the present invention, and the combination of the adjusting screw and the base is separated from the cover plate;

[0025] Fig.11 It is a three-dimensional exploded view of the adjustment screw, cover plate and base of the radio frequency adjustment structure of the present invention;

[0026] Fig.12 yes Figure 8 A top view of

[0027] Fig.13 is along Fig.12 Sectional view along the midline BB;

[0028] Fig.14 is along Fig.12 Sectional view along the CC line. DETAILED DESCRIPTION

[0029] The exemplary embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. If there are several embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; on the contrary, they are only examples of devices, products and / or methods consistent with some aspects of the present invention as recorded in the claims of the present invention.

[0030] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the scope of protection of the present invention. The singular forms "a", "said" or "the" used in the specification and claims of the present invention are also intended to include plural forms, unless the context clearly indicates other meanings.

[0031] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but indicate the existence of at least one. Unless otherwise specified, words such as "front", "rear", "upper", "lower" and similar words appearing in the present invention are only for the convenience of explanation and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprise" are an open-ended expression, meaning that the elements appearing before "include" or "comprise" include the elements appearing after "include" or "comprise" and their equivalents, which does not exclude that the elements appearing before "include" or "comprise" may also include other elements. If "several" appears in the present invention, it means two or more.

[0032] Please refer to Figures 1 to 14As shown, the present invention discloses a radio frequency adjustment structure, which includes an adjustment screw 1 and a cover plate 2. The adjustment screw 1 includes a cap portion 12 and an adjustment screw portion 11 located at the center axis of the cap portion 12, the adjustment screw portion 11 defines a vertical direction, and the cap portion 12 is provided with an internal thread 120 spirally wrapped in the vertical direction. The cover plate 2 includes a base plate portion 21 and a column portion 22 protruding upward from the base plate portion 21, the cover plate 2 has a through hole 20 that penetrates the column portion 22 and the base plate portion 21 from top to bottom in the vertical direction, and the column portion 22 is provided with an external thread 220 spirally wrapped in the vertical direction. The adjustment screw portion 11 is inserted into the through hole 20 and can adjust its installation depth relative to the cover plate 2 by relying on the cooperation between the internal thread 120 and the external thread 220. Since the present invention arranges the internal thread 120 on the cap portion 12 of the adjusting screw 1 and the external thread 220 on the column portion 22 of the cover plate 2, when the adjusting screw portion 11 is passed through the through hole 20 on the column portion 22 of the cover plate 2, the adjusting screw 1 can adjust its installation depth relative to the cover plate 2 to adjust the frequency by relying on the cooperation between the internal thread 120 and the external thread 220. At the same time, the debris generated by the spiral cooperation between the internal and external threads 120 and 220 is blocked by the column portion 22 of the cover plate 2 outside the cover plate 2, thereby preventing the debris from falling into the bottom of the cover plate 2 through the through hole 20, thereby improving intermodulation and further optimizing the frequency modulation effect.

[0033] Please refer to Figure 6 and Figure 7 , the vertical direction is Figure 6 and Figure 7 The up and down directions in the horizontal direction are Figure 6 and Figure 7 The left and right direction in .

[0034] Please refer to Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the cap portion 12 includes a brim portion 121 extending in the vertical direction, the brim portion 121 surrounds the outside of the adjusting screw portion 11, and the internal thread 120 is arranged on the brim portion 121 and faces the adjusting screw portion 11. It is easy to imagine that the so-called cap portion 12 is similar to a bottle cap, the inner wall surface 1211 of the bottle cap is a round surface, the internal thread 120 spirally surrounds the vertically extending inner wall surface 1211 of the bottle cap, and the internal thread 120 faces the adjusting screw portion 11, so as to be screwed together with the external thread 220 arranged on the column portion 22 of the cover plate 2.

[0035] Please continue to refer to Figure 3 , Figure 4 , Figure 6and Figure 7 As shown, the base plate portion 21 defines a horizontal direction, and the cap portion 12 includes a base portion 122 extending in the horizontal direction, and the base portion 122 is integrally connected between the adjusting screw portion 11 and the brim portion 121. The so-called cap portion 12 is similar to a bottle cap, and it can be understood that the bottle cap includes a horizontally extending base portion 122 located at the top, and the function of the base portion 122 is to connect the adjusting screw portion 11 extending in the vertical direction and the brim portion 121 extending in the vertical direction.

[0036] Please refer to Figures 1 to 14 As shown and with particular reference to Figure 6 and Figure 7 The adjusting screw part 11 extends downward from the base part 122, the extending height of the adjusting screw part 11 in the vertical direction is a first height H1, and the extending height of the brim part 121 in the vertical direction is a second height H2, and the second height H2 is less than the first height H1. Such a configuration facilitates the adjusting screw part 11 to pass through the through hole 20 and extend to the bottom of the cover plate 2 and partially extend downward to adjust its installation depth relative to the cover plate 2, and facilitates the cap part 12 to be screwed and suspended in position with the column part 22 on the cover plate 2 by the cooperation between the internal thread 120 and the external thread 220.

[0037] Please refer to Figures 1 to 7 As shown, the second height H2 is 1 / 3 to 1 / 2 of the first height H1. When the second height H2 is 1 / 2 of the first height H1, the exposed part and the unexposed part of the adjusting screw part 11 relative to the brim part 121 each account for half, that is, the adjusting screw part 11 has half of its length for adjusting its installation depth relative to the cover plate 2, that is, the frequency adjustment range is relatively small; when the second height H2 is 1 / 3 of the first height H1, the exposed part of the adjusting screw part 11 relative to the brim part 121 accounts for more than half, so that the frequency adjustment range is increased. Of course, the range of the second height H2 and the first height H1 is not particularly limited, as long as the second height H2 is less than the first height H1, so that the adjusting screw part 11 has an exposed part relative to the brim part 121.

[0038] Please refer to Figure 4 and Figure 7As shown, the adjusting screw 1 is integrally formed by injection molding, and in particular, the adjusting screw portion 11 can be regarded as being deposited downward from the middle of the base portion 122 during the injection molding process. An annular space 10 is provided between the adjusting screw portion 11, the base portion 122 and the brim portion 121, and at least part of the column portion 22 is located in the annular space 10. The function of the annular space 10 is to accommodate part of the column portion 22 when the adjusting screw 1 is adjusted up and down relative to the cover plate 2, and to provide a corresponding movable space.

[0039] Please refer to Figure 3 , Figure 4 and Figure 7 As shown, the adjusting screw portion 11 includes an inner surface 111 and an outer surface 112 that are arranged oppositely, the bottom of the adjusting screw portion 11 away from the base 122 is closed, and the top of the adjusting screw portion 11 close to the base 122 is open. The purpose of such a setting is, on the one hand, to facilitate the integral molding of the adjusting screw 1, and on the other hand, to facilitate reducing the weight of the adjusting screw 1 and achieving lightweight products.

[0040] Please refer to Figure 6 and Figure 7 As shown, the brim portion 121 includes an inner wall surface 1211 and an outer wall surface 1212 that are oppositely arranged. It should be noted that the inner wall surface 1211 is a circular surface, which is conducive to the etching and forming of the internal thread 120 on the inner wall surface 1211; the outer wall surface 1212 is a plurality of planes connected end to end, and the outer edge of the base 122 is a polygon (in a specific embodiment, the outer edge of the outer wall surface 1212 looks like the outer contour of a hexagonal nut). Such a configuration makes it easy to adjust the adjusting screw 1 by screwing it with a tool.

[0041] Please continue to refer to Figure 6 and Figure 7 As shown, the cylindrical portion 22 includes an inner ring surface 2201 and an outer ring surface 2202 that are oppositely arranged. It should be noted that the outer ring surface 2202 is a circular surface, which is conducive to the etching and forming of the external thread 220 on the outer ring surface 2202. It should also be particularly noted that the etching height of the internal thread 120 on the inner wall surface 1211 is the same as the etching height of the external thread 220 on the outer ring surface 2202. That is, when the highest position of the internal thread 120 is flush with the highest position of the external thread 220, the lowest position of the internal thread 120 is also flush with the lowest position of the external thread 220. Therefore, it can be ensured that the internal thread 120 and the external thread 220 achieve a fully matched meshing state.

[0042] Please continue to refer to Figure 7As shown, the brim portion 121 also includes an inner bottom surface 1213, and the cap portion 12 also includes a cap opening portion 123. The distance from the inner bottom surface 1213 to the cap opening portion 123 is a third height H3, and the height of the column portion 22 is H4, and the third height H3 is not less than the fourth height H4. That is to say, the present invention also reserves a distance between the bottom of the external thread 220 and the upper surface of the substrate portion 21, and between the cap opening portion 123 and the inner bottom surface 1213, so that after the internal thread 120 and the external thread 220 are fully screwed into place, they can continue to be screwed downward for a distance. Therefore, that is to say, the number of spiral turns of the internal thread 120 and the external thread 220 can be minimized, and the adjustment depth of the adjustment screw 1 can be maximized.

[0043] Please refer to Figures 7 to 14 As shown, the radio frequency adjustment structure of the present invention further includes a base 3. The base 3 is located below the cover plate 2 and the cavity 30 is formed between the cover plate 2 and the base 3. The adjusting screw 1 is threadedly mounted on the cover plate 2 and extends into the cavity 30 for frequency adjustment. It is particularly noted that the cavity 30 includes two types: the first type refers to a first cavity 301 surrounded only by the outer wall around the base 3; the second type refers to a second cavity 302 surrounded by a circular wall inside the outer wall of the base 3. Therefore, the wall thickness of the first cavity 301 is different from the wall thickness of the second cavity 302. It can be understood that the wall thickness of the second cavity 302 is greater than the wall thickness of the first cavity 301, so the shielding effect is good, and the efficiency of adjusting the frequency is more significant and more efficient. The radio frequency adjustment structure of the present invention has multiple adjusting screws 1, some of which extend into the first cavity 301 and the rest of the adjusting screws 1 extend into the second cavity 302. In this way, the adjusting screws 1 can be divided into different types to adjust the frequency in a targeted manner. For example, if the adjustment efficiency of the adjustment screw 1 in the first cavity 301 is set to level one, the adjustment efficiency of the adjustment screw 1 in the second cavity 302 can be called level two. That is, the adjustment efficiency of the adjustment screw 1 in the second cavity 302 is twice the adjustment efficiency of the adjustment screw 1 in the first cavity 301. In this way, the frequency adjustment of the radio frequency adjustment structure of the present invention can be adjusted and controlled by multiple adjustment screws 1 with different adjustment efficiencies of level one and level two.

[0044] In summary, the present invention arranges the internal thread 120 on the cap portion 12 of the adjusting screw 1 and the external thread 220 on the column portion 22 of the cover plate 2. Therefore, when the adjusting screw portion 11 is passed through the through hole 20 on the column portion 22 of the cover plate 2, the adjusting screw 1 can rely on the cooperation between the internal thread 120 and the external thread 220 to adjust its installation depth relative to the cover plate 2 to adjust the frequency. At the same time, the debris generated by the spiral cooperation between the internal and external threads 120 and 220 is blocked by the column portion 22 of the cover plate 2 outside the cover plate 2, thereby preventing the debris from falling into the cavity 30 below the cover plate 2 through the through hole 20, thereby improving intermodulation and further optimizing the frequency modulation effect.

[0045] The above implementation modes are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of the present invention should be based on the technical personnel in the relevant technical field. Although the present invention has been described in detail in this specification with reference to the above implementation modes, the ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A radio frequency adjustment structure, characterized in that: include: An adjusting screw (1) comprises a cap portion (12) and an adjusting screw portion (11) located at the center axis of the cap portion (12), wherein the adjusting screw portion (11) defines a vertical direction, and the cap portion (12) is provided with an internal thread (120) spirally encircling in the vertical direction; and A cover plate (2), comprising a base plate portion (21) and a column portion (22) protruding upward from the base plate portion (21), the cover plate (2) having a through hole (20) penetrating the column portion (22) and the base plate portion (21) from top to bottom in the vertical direction, the column portion (22) being provided with an external thread (220) spirally encircling in the vertical direction; The adjusting screw portion (11) is inserted into the through hole (20) and can adjust its installation depth relative to the cover plate (2) by means of the cooperation between the internal thread (120) and the external thread (220).

2. The radio frequency adjustment structure according to claim 1, characterized in that: The cap portion (12) comprises a brim portion (121) extending in the vertical direction, the brim portion (121) surrounds the adjusting screw portion (11), and the internal thread (120) is arranged on the brim portion (121) and faces the adjusting screw portion (11).

3. The radio frequency adjustment structure according to claim 2, characterized in that: The base plate portion (21) defines a horizontal direction, and the cap portion (12) includes a base portion (122) extending in the horizontal direction, and the base portion (122) is integrally connected between the adjusting screw portion (11) and the brim portion (121).

4. The radio frequency adjustment structure according to claim 3, characterized in that: The adjusting screw portion (11) extends downward from the base portion (122), and the extending height of the adjusting screw portion (11) in the vertical direction is a first height H1, and the extending height of the brim portion (121) in the vertical direction is a second height H2, and the second height H2 is smaller than the first height H1.

5. The radio frequency adjustment structure according to claim 3, characterized in that: An annular space (10) is provided between the adjusting screw portion (11), the base portion (122) and the brim portion (121), and at least a portion of the column portion (22) is located in the annular space (10).

6. The radio frequency adjustment structure according to claim 5, characterized in that: The adjusting screw portion (11) comprises an inner surface (111) and an outer surface (112) which are arranged opposite to each other; the bottom of the adjusting screw portion (11) away from the base portion (122) is closed, and the top of the adjusting screw portion (11) close to the base portion (122) is open.

7. The radio frequency adjustment structure according to claim 3, characterized in that: The brim portion (121) comprises an inner wall surface (1211) and an outer wall surface (1212) which are arranged opposite to each other, the inner wall surface (1211) being a circular surface; the outer wall surface (1212) being a plurality of planes connected end to end, and the outer edge of the base portion (122) being a polygon.

8. The radio frequency adjustment structure according to claim 7, characterized in that: The cylindrical portion (22) includes an inner ring surface (2201) and an outer ring surface (2202) that are arranged opposite to each other, and the outer ring surface (2202) is a circular surface; the etching height of the internal thread (120) on the inner wall surface (1211) and the etching height of the external thread (220) on the outer ring surface (2202) are the same as a fourth height.

9. The radio frequency adjustment structure according to claim 8, characterized in that: The brim portion (121) further includes an inner bottom surface (1213), the cap portion (12) further includes a cap opening portion (123), the distance from the inner bottom surface (1213) to the cap opening portion (123) is a third height H3, the height of the column portion (22) is H4, and the third height H3 is not less than the fourth height H4.

10. The radio frequency adjustment structure according to claim 1, characterized in that: It also comprises a base (3), the base (3) being located below the cover plate (2) and forming a cavity (30) between the cover plate (2) and the base (3), and the adjusting screw (1) being threadedly mounted on the cover plate (2) and extending into the cavity (30).

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