A filter frequency modulation nut, frequency modulation sleeve and filter

Abstract

This utility model discloses a filter frequency tuning nut, a frequency tuning sleeve, and a filter. The filter frequency tuning nut of this utility model includes a nut body with an internal thread in the middle for fitting a frequency tuning screw. The projection of the outer side of the nut body onto the plane containing its bottom surface is circular. At least two recessed grooves are evenly spaced on the upper outer surface of the nut body. The filter frequency tuning nut of this utility model is small in size, simple in structure, avoids interference, and is easy to tune. The filter frequency tuning sleeve of this utility model has a small outer diameter, simple structure, avoids interference, is easy to tune, and improves tuning efficiency. This utility model can reduce the size of the filter, improve the space utilization of the filter, and solve the interference problem caused by the large size of the frequency tuning nut.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, and in particular to a filter frequency modulation nut, a frequency modulation sleeve and a filter. Background Technology

[0002] With the advent of the 5G era, the size requirements for filters are becoming increasingly smaller, resulting in limited usable structural space and constraints on design and operation. For example... Figure 1 and Figure 2 As shown, this is a filter in the prior art. The filter includes a cavity 1', a cover plate 2', a cover plate screw 3', a frequency tuning screw 4', and a frequency tuning nut 5'. The cover plate 2' covers the cavity 1', and the cover plate screw 3' screws the cover plate 2' to the cavity 1'. The frequency tuning nut 5' is located on the upper side of the cover plate 2' and screwed onto the outside of the frequency tuning screw 4'. One end of the frequency tuning screw 4' extends into the cavity 1'. After the filter is assembled, it needs to be frequency tuned by adjusting the depth of the frequency tuning screw 4' inside the cavity 1'. Figure 7 and Figure 8 As shown, when adjusting the frequency, the frequency adjustment sleeve 6' needs to be used to loosen the frequency adjustment nut 5', and at the same time, the frequency adjustment screw 4' needs to be screwed in and out with a screwdriver to control the depth of the frequency adjustment screw 4' entering the cavity 1'. When the frequency adjustment screw 4' enters the cavity 1' to the appropriate depth, the frequency adjustment sleeve 6' is used to lock the frequency adjustment nut 5' to fix the frequency adjustment screw 4' on the cover plate 2', thus achieving the purpose of frequency adjustment.

[0003] like Figure 3 As shown, the frequency tuning nut 5' in the prior art is an external hexagonal frequency tuning nut. The external hexagonal sidewall of the frequency tuning nut 5' facilitates the tightening and loosening action by engaging with the frequency tuning sleeve 6'. Figure 4 , Figure 5 and Figure 6 As shown, the existing frequency modulation sleeve 6' has an inner hexagonal groove 61' that mates with the outer hexagonal sidewall of the frequency modulation nut. In order to ensure strength, the frequency modulation sleeve 6' will have a certain wall thickness 62' added outside the inner hexagon. This added wall thickness 62' will increase the outer diameter of the frequency modulation sleeve 6', thereby affecting the miniaturization layout of the filter product.

[0004] Furthermore, the outer hexagonal sidewalls of the frequency modulation nut 5' form three pairs of large diagonal dimensions, which can affect the miniaturization layout of filter products. During filter product design, the large diagonal dimensions of the frequency modulation nut 5' frequently cause interference issues between the frequency modulation sleeve 6' and the cover screw 3', between the frequency modulation nut 5' and the cover screw 3', between the frequency modulation nut 5' and the frequency modulation sleeve 6', and between the frequency modulation nuts 5' and each other. Specific interference problems are as follows: 1) such as Figure 8 , Figure 9 and Figure 10As shown, there is an interference problem between the frequency modulation sleeve 6' and the cover plate screw 3'; 2) such as Figure 11 As shown, the diagonal position of the frequency tuning nut 5' interferes with the cover plate screw 3'; 3) such as Figure 12 As shown, interference occurs at the diagonal positions of the frequency tuning sleeve 6' and the frequency tuning nut 5'; 4) such as Figure 13 As shown, interference occurs between the frequency tuning nut 5' and the frequency tuning nut 5' at their diagonal positions.

[0005] In view of this, in order to reduce the size of the filter, improve the space utilization of the filter, and solve the interference problem between components caused by the large diagonal size of the frequency tuning nut and the large size of the frequency tuning sleeve, it is urgent to optimize the structure of the frequency tuning nut and the frequency tuning sleeve. Utility Model Content

[0006] The technical problem to be solved by this utility model is to address the shortcomings of the prior art. Firstly, it provides a filter tuning nut that is small in size, simple in structure, avoids interference, and is easy to tune. Secondly, it provides a filter tuning sleeve that is small in outer diameter, simple in structure, avoids interference, is easy to tune, and improves tuning efficiency. Thirdly, it provides a filter with the filter tuning nut, which can reduce the size of the filter, improve the space utilization of the filter, and solve the interference problem caused by the large size of the tuning nut.

[0007] To solve the above-mentioned technical problems, the first aspect of the present invention is: a filter frequency tuning nut, including a nut body, wherein the middle part of the nut body is provided with an internal thread for adapting to the frequency tuning screw, the projection of the outer side of the nut body on the plane where the bottom surface of the nut body is located is circular, and at least two concave grooves are equally spaced on the upper outer side of the nut body.

[0008] Preferably, the upper outer end of the nut body is provided with six recessed grooves at equal intervals.

[0009] Preferably, the concave groove has sidewalls on both sides for the filter tuning sleeve to push the nut body to rotate, the lower side of the concave groove has a stop surface for limiting the downward position of the filter tuning sleeve, and the inner side of the concave groove has reinforcing ribs. The upper edge of the concave groove of the nut body is rounded.

[0010] To solve the above-mentioned technical problems, the technical solution of the second aspect of this utility model is: a filter tuning sleeve, specifically used for locking or loosening the filter tuning screw, including a sleeve body, wherein at least two locking teeth that cooperate with the concave slot are equally spaced at one end of the sleeve body.

[0011] Preferably, one end of the sleeve body is provided with six teeth that are evenly spaced apart and cooperate with the concave groove.

[0012] Preferably, the outer diameter of one end of the sleeve body is consistent with the outer diameter of the nut body.

[0013] Preferably, one end of the sleeve body is provided with a clearance hole to avoid contact with the frequency tuning screw.

[0014] Preferably, the height of the retaining tooth is greater than the height of the concave groove, there is an avoidance notch between adjacent retaining teeth, and there is an avoidance surface on the upper side of the avoidance notch, the avoidance surface is used to avoid contact with the upper side of the filter tuning nut; the retaining teeth of the sleeve body are surrounded by guide rounded corners.

[0015] To solve the above-mentioned technical problems, the third aspect of the present invention provides a filter, comprising a cavity, a cover plate, and a cover plate screw. The cavity has a chamber inside, and the top of the chamber has an opening. The cover plate covers the cavity and seals the opening. The cover plate screw is located on the cover plate and screwed into the cavity to fix the cover plate and the cavity. The filter also includes a frequency tuning screw and a filter frequency tuning nut. The cover plate has a frequency tuning screw hole, and the frequency tuning screw has an external thread. The frequency tuning screw is screwed into the frequency tuning screw hole and enters the chamber. The filter frequency tuning nut is located on the upper side of the cover plate and screwed outside the frequency tuning screw. The internal thread of the filter frequency tuning nut engages with the external thread of the frequency tuning screw to lock or loosen the frequency tuning screw.

[0016] The beneficial effects of this utility model are: (1) Since the projection of the outer side of the filter tuning nut body onto the plane where the bottom surface of the nut body is located is circular, the filter tuning nut eliminates the three pairs of opposite corners of the conventional hexagonal tuning nut, which can save the layout space of the filter cavity and avoid interference between the opposite corners when the tuning nut is tuning; (2) Since the upper end of the filter tuning nut body is provided with at least two concave grooves at equal intervals, and one end of the filter tuning sleeve body is provided with at least two teeth at equal intervals that cooperate with the concave grooves, the opening and closing position of the filter tuning nut and the filter tuning sleeve is changed from the position of the outer hexagonal side wall of the nut body to The concave groove position at the upper end of the nut body means that the frequency tuning sleeve does not need to be thickened. The outer diameter of the frequency tuning sleeve can be designed to be consistent with the outer diameter of the nut body. The outer diameter of the frequency tuning sleeve is reduced, thereby increasing the usable space of the filter product; (3) The filter frequency tuning nut and filter frequency tuning sleeve of this utility model adopt the method of inner concave groove and tooth matching, which is simple in structure, easy to operate for frequency tuning, and can improve the frequency tuning efficiency; (3) The filter of this utility model adopts the filter frequency tuning nut of this utility model, and the filter frequency tuning nut and filter frequency tuning sleeve of this utility model are matched, which can reduce the filter size, improve the filter space utilization, and solve the interference problem caused by the large size of the frequency tuning nut and the increased wall thickness of the filter frequency tuning sleeve. Attached Figure Description

[0017] Figure 1 This is a diagram of the overall structure of a filter in the existing technology.

[0018] Figure 2 This is a cross-sectional view of a filter in the prior art.

[0019] Figure 3 This is a structural diagram of a frequency modulation nut in the prior art.

[0020] Figure 4 This is a structural diagram of a frequency modulation sleeve in the prior art.

[0021] Figure 5 This is a bottom view of the structure of a frequency modulation sleeve in the prior art.

[0022] Figure 6 This is a cross-sectional view of a frequency modulation sleeve in the prior art.

[0023] Figure 7 This is a schematic diagram of the structure of the frequency adjustment sleeve adjusting the frequency adjustment nut in the prior art.

[0024] Figure 8 This is a cross-sectional schematic diagram illustrating the interference problem that occurs when adjusting the frequency tuning nut using a frequency tuning sleeve in the prior art.

[0025] Figure 9 for Figure 8 A magnified view of part A in the middle.

[0026] Figure 10 This is a schematic diagram illustrating the interference problem between the frequency modulation sleeve and the cover plate screw in the prior art.

[0027] Figure 11 This is a schematic diagram illustrating the interference problem between the frequency tuning nut and the cover plate screw in the prior art.

[0028] Figure 12 This is a schematic diagram illustrating the interference problem between the frequency modulation sleeve and the frequency modulation nut in the prior art.

[0029] Figure 13 This is a schematic diagram of the structure in the prior art where interference occurs between frequency tuning nuts.

[0030] Figure 14 This is a structural diagram of the filter of this utility model.

[0031] Figure 15 This is a cross-sectional view of the filter structure of this utility model.

[0032] Figure 16 This is a structural diagram of the filter frequency tuning nut of this utility model.

[0033] Figure 17 This is a cross-sectional view of the filter frequency tuning nut of this utility model.

[0034] Figure 18 This is a top view of the filter frequency tuning nut of this utility model.

[0035] Figure 19 This is a structural diagram of the filter frequency modulation sleeve of this utility model.

[0036] Figure 20 This is a bottom view of the filter frequency modulation sleeve of this utility model.

[0037] Figure 21 This is a cross-sectional view of the filter frequency modulation sleeve of this utility model.

[0038] Figure 22 This is an overall structural diagram of the filter frequency modulation sleeve adjusting the filter frequency modulation nut of this utility model.

[0039] Figure 23 This is a cross-sectional view of the frequency modulation sleeve adjusting the frequency modulation nut of the filter according to this utility model.

[0040] Figure 24 for Figure 23 A magnified view of part B in the middle section. Detailed Implementation

[0041] The structural and working principles of this utility model will be further described in detail below with reference to the accompanying drawings.

[0042] like Figure 16 , Figure 17 and Figure 18 As shown, and in conjunction with reference Figure 14 and Figure 15 This utility model provides a filter frequency tuning nut 5, including a nut body 51. The nut body 51 has an internal thread 52 in the middle for adapting to a frequency tuning screw 4. The projection of the outer side of the nut body 51 onto the plane where the bottom surface of the nut body 51 is located is circular. At least two concave grooves 53 are evenly spaced on the upper outer side of the nut body 51. In this embodiment, six concave grooves 53 are evenly spaced on the upper outer side of the nut body 51. This utility model filter frequency tuning nut 5 eliminates the three pairs of diagonals of the conventional hexagonal frequency tuning nut, which can save space in the filter cavity layout and avoid interference between the diagonals when the frequency tuning nut is tuning. This utility model filter frequency tuning nut 5 eliminates the outer six sidewalls of the conventional hexagonal frequency tuning nut, replacing them with the concave grooves 53 on the upper end of the nut body 51. The concave grooves 53 can cooperate with the teeth of the filter frequency tuning sleeve to perform tightening and loosening actions. The frequency tuning sleeve does not need to increase the wall thickness, and the outer diameter of the frequency tuning sleeve is reduced, thereby increasing the usable space of the filter product.

[0043] like Figure 16 , Figure 17 and Figure 18 As shown, in conjunction with reference Figure 22 and Figure 23 The concave groove 53 has sidewalls 531 on both sides for the filter tuning sleeve to push the nut body 51 to rotate. The lower side of the concave groove 53 has a stop surface 532 for limiting the downward position of the filter tuning sleeve. The inner side of the concave groove 53 has reinforcing ribs 533. The stop surface 532 can limit the downward position of the filter tuning sleeve 6, avoiding damage to the upper surface of the filter tuning nut 5 during tuning. The reinforcing ribs 533 can increase the strength of the filter tuning nut 5, ensuring that the filter tuning nut 5 is not easily deformed or damaged during tuning. In addition, the reinforcing ribs 533 can isolate the contact between the filter tuning sleeve 6 and the tuning screw 4 during tuning, thereby protecting the tuning screw 4 from collision damage caused by tuning.

[0044] like Figure 16 , Figure 17 and Figure 18 As shown, the upper edge of the concave groove 53 of the nut body 51 is rounded 534. This facilitates the smooth insertion of the retaining teeth 62 of the filter tuning sleeve 6 into the concave groove 53, improving work efficiency.

[0045] like Figures 19-21 As shown, and in conjunction with reference Figures 22-14 This utility model provides a filter tuning sleeve 6, specifically used for tightening or loosening the filter tuning screw 5. It includes a sleeve body 61, with at least two equally spaced locking teeth 62 that engage with a recessed groove 53 at one end of the sleeve body 61. In this embodiment, six equally spaced locking teeth 62 engage with the recessed groove 53 at one end of the sleeve body 61. This utility model eliminates the internal hexagonal socket of conventional tuning sleeves, thus eliminating the increased outer diameter and wall thickness caused by the internal hexagonal socket. This direct reduction in the outer diameter of the filter tuning sleeve saves space in the filter cavity layout, increases the safety clearance between the tuning sleeve and other components, reduces interference problems, and improves tuning efficiency. The snap teeth 62 designed on the filter tuning sleeve of this utility model can cooperate with the concave groove 53 on the filter tuning nut 5. When working, the snap teeth 62 can be embedded in the concave groove 53 of the filter tuning nut 5. The two mesh with each other and are subjected to left and right force to loosen and tighten, thereby achieving the purpose of loosening and locking the tuning nut. The filter tuning sleeve of this utility model does not require additional wall thickness, and the outer diameter of the tuning sleeve is reduced, thereby increasing the usable space of the filter product. like Figures 22-14 As shown, the outer diameter of one end of the sleeve body 61 is the same as the outer diameter of the nut body 51. A handle 63 for rotating the sleeve body 61 is connected to the side of the sleeve body 61.

[0046] like Figures 19-21 As shown, a clearance hole 64 is provided inside one end of the sleeve body 61 to avoid contact with the frequency tuning screw 4. The clearance hole 64 can avoid contact with the frequency tuning screw 4, thus preventing damage to the frequency tuning screw 4 during frequency tuning.

[0047] like Figures 19-21 As shown, the height of the retaining tooth 62 is greater than the height of the concave groove 53. There is an avoidance notch between adjacent retaining teeth 62. The upper side of the avoidance notch has an avoidance surface 65. The avoidance surface 65 is used to avoid contact with the upper side of the filter tuning nut 5, so as to avoid damage to the upper surface of the filter tuning nut 5 during frequency tuning. The retaining teeth 62 of the sleeve body 61 are surrounded by guide rounded corners 66, which facilitates the smooth insertion of the retaining teeth 62 into the concave groove 53 of the filter tuning nut 5, thereby improving the frequency tuning efficiency.

[0048] like Figure 14 and Figure 15As shown, this utility model provides a filter, including a cavity 1, a cover plate 2, and a cover plate screw 3. The cavity 1 has a chamber 11 inside, and the top of the chamber 11 has a cavity opening 111. The cover plate 2 covers the cavity 1 and seals the cavity opening 111. The cover plate screw 3 is located on the cover plate 2 and screwed into the cavity 1 to fix the cover plate 2 and the cavity 1. It also includes a frequency tuning screw 4 and the filter frequency tuning nut 5. The cover plate 2 has a frequency tuning screw hole 21. The frequency tuning screw 4 has an external thread. The frequency tuning screw 4 is screwed into the frequency tuning screw hole 21 and enters the chamber 11. The filter frequency tuning nut 5 is located on the upper side of the cover plate 2 and screwed outside the frequency tuning screw 4. The internal thread 52 of the filter frequency tuning nut 5 cooperates with the external thread of the frequency tuning screw 4 to lock or loosen the frequency tuning screw 4. The filter of this utility model adopts the frequency tuning nut 5 of this utility model, and the frequency tuning sleeve of this utility model cooperates with the frequency tuning nut 5 of this utility model, which can reduce the size of the filter, improve the space utilization of the filter, and solve the interference problem caused by the large size of the frequency tuning nut and the increased wall thickness of the frequency tuning sleeve.

[0049] like Figures 22-24 As shown, when tuning the frequency, the retaining teeth 62 of the filter tuning sleeve are engaged in the recessed groove 53 of the filter tuning nut 5, the filter tuning nut 5 is loosened, and at the same time the tuning screw 4 is screwed in and out with a screwdriver to control the depth of the tuning screw 4 into the cavity 1. When the tuning screw 4 enters the cavity 1 at the appropriate depth, the filter tuning nut 5 is locked with the filter tuning sleeve to fix the tuning screw 4 on the cover plate 2, thus achieving the purpose of tuning the frequency.

[0050] The above description is merely a preferred embodiment of this utility model. Any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical solution of this utility model shall fall within the scope of the technical solution of this utility model.

Claims

1. A filter frequency modulating nut characterized by: The nut body includes an internal thread in the middle for adapting to a frequency tuning screw. The projection of the outer side of the nut body onto the plane where the bottom surface of the nut body is located is circular. At least two recessed grooves are evenly spaced on the outer side of the upper end of the nut body.

2. The filter frequency modulating nut of claim 1, wherein: The upper outer surface of the nut body has six equally spaced recessed grooves.

3. The filter frequency modulating nut of claim 1, wherein: The concave groove has side walls on both sides for the filter tuning sleeve to push the nut body to rotate, the lower side of the concave groove has a stop surface for limiting the downward position of the filter tuning sleeve, and the inner side of the concave groove has reinforcing ribs.

4. The filter frequency modulating nut of claim 3, wherein: The upper edge of the concave groove of the nut body is rounded.

5. A filter tuning sleeve, dedicated to locking or loosening the filter tuning screw according to any one of claims 1-4, characterized in that: It includes a sleeve body, and at least two locking teeth that cooperate with the concave locking groove are evenly spaced at one end of the sleeve body.

6. The filter frequency modulation sleeve according to claim 5, characterized in that: The sleeve body has six equally spaced locking teeth that mate with the concave locking groove at one end.

7. The filter frequency tuning sleeve of claim 5, wherein: The outer diameter of one end of the sleeve body is consistent with the outer diameter of the nut body.

8. The filter frequency tuning sleeve of claim 5, wherein: One end of the sleeve body is provided with a clearance hole to avoid contact with the frequency tuning screw.

9. The filter frequency tuning sleeve of claim 5, wherein: The height of the locking teeth is greater than the height of the concave locking groove. There is an avoidance notch between adjacent locking teeth. There is an avoidance surface on the upper side of the avoidance notch. The avoidance surface is used to avoid contact with the upper side of the filter tuning nut. The locking teeth of the sleeve body are surrounded by guide rounded corners.

10. A filter comprising a cavity, a cover plate, and a cover plate screw, wherein the cavity has a chamber within it, the top of the chamber has an opening, the cover plate covers the cavity and seals the opening, and the cover plate screw is disposed on the cover plate and screwed into the cavity to screw the cover plate and the cavity together, characterized in that: It also includes a frequency tuning screw and a filter frequency tuning nut as described in any one of claims 1-4. The cover plate is provided with a frequency tuning screw hole, the frequency tuning screw is provided with an external thread, the frequency tuning screw is screwed into the frequency tuning screw hole and enters the cavity, the filter frequency tuning nut is provided on the upper side of the cover plate and screwed outside the frequency tuning screw, the internal thread of the filter frequency tuning nut cooperates with the external thread of the frequency tuning screw to lock or loosen the frequency tuning screw.

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