Phase adjusting mechanism, phase shifter and antenna

Abstract

The invention discloses a phase adjusting mechanism, a phase shifter and an antenna, and the mechanism comprises an input rack, an output rack, a switching gear which comprises a main gear and an auxiliary gear which are engaged with the input rack, a first tooth group which comprises a first gear and a second gear which are engaged with the output rack, and a second tooth group which comprises a cut-off gear and a third gear. The output rack is used for being connected with a medium of the phase shifter, the auxiliary gear is connected to the side, close to the output rack, of the main gear and is coaxial with the main gear, the outer diameter of the first gear is larger than that of the second gear and smaller than that of the main gear, and the first gear is meshed with the auxiliary gear. The second gear is located on the side, away from the auxiliary gear, of the first gear and meshed with the auxiliary gear, the first gear and the second gear can move in the second direction, the outer diameter of the third gear is larger than that of the main gear, the third gear is meshed with the output rack, the third gear is meshed with the auxiliary gear through a cut-off gear, and the cut-off gear can move in the second direction.

Description

Technical Field

[0001] The present invention relates to the technical field of communication engineering, and in particular to a phase adjustment mechanism, a phase shifter and an antenna. Background Art

[0002] The antenna transmission mechanism is often used to control components such as phase shifters to achieve phase changes in order to achieve rapid optimization of the antenna coverage network. At present, the transmission mechanism often uses screw clamps or gear racks to adjust the phase of the phase shifter. However, when the stroke of the phase shifter is large and exceeds the design length of the screw or rack, it is often met by designing a longer screw or rack, which will lead to the overall transmission mechanism, thereby affecting the internal layout of the antenna and is not conducive to the miniaturization of the antenna; when the stroke of the phase shifter is small and exceeds the mechanical accuracy that can be achieved by the screw or rack, it is often achieved by designing a smaller screw lead or rack pitch, which will also lead to the reconstruction of the transmission output mechanism. At the same time, a smaller screw lead or rack pitch will cause the phase shifter to take too long to adjust, which will inevitably affect the user experience. Therefore, no matter which of the above situations, it will lead to differentiation of the transmission output mechanism, increasing development costs and maintenance costs. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to propose a phase adjustment mechanism that can realize the motion state of different speed ratios between the output rack and the input rack, meet the needs of the phase shifter for high-precision adjustment, meet the needs of the phase shifter for large torque output, meet the needs of the phase shifter for large stroke, improve the applicability of the phase adjustment mechanism, and reduce the design and development cost of the phase shifter to which the phase adjustment mechanism is applicable.

[0004] The present invention also provides a phase shifter having the above phase adjustment mechanism.

[0005] The present invention also provides an antenna having the phase shifter.

[0006] The phase adjustment mechanism according to the first aspect of the embodiment of the present invention is applied to a phase shifter, comprising: an input rack and an output rack extending in a first direction, the input rack and the output rack are arranged at intervals in a second direction, and the output rack is used to connect the medium of the phase shifter; a transfer gear, comprising a main gear and a sub-gear, the main gear meshing with the input rack, the sub-gear connected to a side of the main gear close to the output rack and coaxially arranged with the main gear; a first gear set, comprising a first gear and a second gear meshing with the output rack, the outer diameter of the first gear being larger than the outer diameter of the second gear and smaller than the outer diameter of the main gear, the first gear meshing with the sub-gear, The second gear is located on a side of the first gear away from the auxiliary gear and meshes with the auxiliary gear, and both the first gear and the second gear are movable along the second direction to disconnect the meshing relationship between themselves and the output rack; the second gear group is arranged at an end of the auxiliary gear away from the first gear group in the first direction and includes a cutting gear and a third gear, the outer diameter of the third gear is larger than the outer diameter of the main gear and meshes with the output rack, the third gear is meshed with the auxiliary gear through the cutting gear, and the cutting gear is movable along the second direction to disconnect the meshing relationship between itself and the input rack; wherein, the first direction is perpendicular to the second direction.

[0007] According to the phase adjustment mechanism of the present invention, by setting two transmission gear sets to connect the sub-gear and the output rack, and setting the gear in each rotating gear set to be movable along the second direction to disconnect the meshing relationship between itself and the input rack, different gears can be meshed with the output rack to achieve motion states with different speed ratios between the output rack and the input rack, thereby meeting the needs of the phase shifter for high-precision adjustment, meeting the needs of the phase shifter for large torque output, and meeting the needs of the phase shifter for a large stroke, thereby improving the applicability of the phase adjustment mechanism and reducing the design and development cost of the phase shifter to which the phase adjustment mechanism is applicable.

[0008] According to some embodiments of the present invention, the phase adjustment mechanism also includes: a shell, the shell having an installation cavity, the transfer gear, the first tooth group and the second tooth group are all arranged in the installation cavity, the two side walls of the installation cavity in the first direction are limiting side walls, the limiting side walls are provided with a first through hole, a second through hole, a first limiting opening and a second limiting opening, the input rack is passed through the first through hole, the output rack is passed through the second through hole, the first limiting opening is arranged on both sides of the first through hole in the second direction and is connected to the first through hole, the input rack is provided with a first limiting convex strip passed through the first limiting opening, the second limiting opening is arranged on both sides of the second through hole in the second direction and is connected to the second through hole, and the output rack is provided with a second limiting convex strip passed through the second limiting opening.

[0009] In some embodiments of the present invention, a first limit plate is provided on the portion of the output rack extending out of the mounting cavity, and the first limit plate abuts against the limit side wall in the first direction; and / or a second limit plate is provided on the portion of the input rack extending out of the mounting cavity, and the second limit plate abuts against the limit side wall in the first direction.

[0010] In some embodiments of the present invention, the two side walls of the mounting cavity in the second direction are assembly side walls, the two ends of the rotating shaft of the transfer gear are respectively penetrated in the corresponding assembly side walls, the rotating shafts of all gears in the first tooth group are penetrated in the corresponding assembly side walls, and the rotating shafts of all gears in the second tooth group are penetrated in the corresponding assembly side walls, and the phase adjustment mechanism also includes: an elastic member, the number of the elastic members is the same as and one-to-one corresponds to all gears movable along the second direction, one end of the elastic member is connected to the corresponding gear, and the other end is connected to the assembly side wall to disconnect the meshing relationship between the corresponding gear and the output rack.

[0011] In some embodiments of the present invention, the elastic member is a spring, which is sleeved on the rotating shaft of the corresponding gear and located in the installation cavity, and the two ends of the elastic member in the second direction are respectively stopped against the corresponding gear and the assembly side wall.

[0012] According to some embodiments of the present invention, a gear on which the elastic member is sleeved on the rotating shaft is provided with an avoidance groove, and a portion of the elastic member is inserted into the corresponding avoidance groove.

[0013] According to some optional embodiments of the present invention, the phase adjustment mechanism further includes: a shift baffle, which is disposed outside the mounting cavity and movably connected to the shell, and the shift baffle has a plurality of moving positions, the number of the moving positions is the same as the number of all gears movable along the second direction and corresponds one to one, and in the moving position, the shift baffle and the corresponding gear stop in the second direction to engage the corresponding gear with the output rack.

[0014] In some optional embodiments of the present invention, a stop protrusion is provided on a side surface of the shift baffle facing the installation cavity, and the side surface of the stop protrusion facing the installation cavity is a stop surface. The stop surface includes a stop section and a guide section. The stop section abuts against the rotating shaft of the corresponding gear in the second direction. There are two guide sections and they are respectively connected to the two ends of the stop section in the movement direction of the shift baffle, and the guide section gradually moves away from the shell in the direction away from the stop section.

[0015] The phase shifter according to the second aspect of the present invention comprises: a medium; and the phase adjustment mechanism according to the first aspect of the present invention, wherein the output rack is connected to the medium.

[0016] The phase shifter according to the present invention can meet the requirements of high-precision adjustment, large torque output or large stroke through the above-mentioned phase adjustment mechanism, ensure the reliability of the phase shifter, and make it unnecessary to design and develop the phase adjustment mechanism of the phase shifter, thereby reducing the production cost of the phase shifter and improving the overall performance of the phase shifter.

[0017] The antenna according to the embodiment of the third aspect of the present invention is characterized by comprising: a phase shifter according to the embodiment of the second aspect of the present invention.

[0018] According to the antenna of the present invention, the above-mentioned phase shifter can ensure the reliability of the antenna operation, reduce the production cost of the antenna, and improve the overall performance of the antenna.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a perspective view of a phase adjustment mechanism according to some embodiments of the present invention;

[0022] Figure 2 yes Figure 1An exploded diagram of the phase adjustment mechanism in FIG.

[0023] Figure 3 yes Figure 1 A connection diagram of the phase adjustment mechanism in the embodiment of the invention when adjusting the gear position with high precision;

[0024] Figure 4 yes Figure 1 A connection diagram of the phase adjustment mechanism in the high torque output gear;

[0025] Figure 5 yes Figure 1 A connection diagram of the phase adjustment mechanism in the output gear when the output gear is formed;

[0026] Figure 6 yes Figure 2 The structural stereogram of the gear in FIG.

[0027] Figure 7 yes Figure 5 A three-dimensional image of the gear from another perspective;

[0028] Figure 8 yes Figure 2 A three-dimensional diagram of the shift baffle in FIG.

[0029] Fig. 9 yes Figure 8 A three-dimensional image of the middle shift baffle from another perspective;

[0030] Fig.10 yes Figure 1 Schematic diagram of the input rack / output rack in.

[0031] Reference numerals:

[0032] 100. Phase adjustment mechanism;

[0033] 1. Input rack; 11. First limit convex strip; 12. Second limit plate;

[0034] 2. output rack; 21. second limit convex strip; 22. first limit plate;

[0035] 3. Transfer gear; 31. Main gear; 32. Sub gear;

[0036] 4. first gear set; 41. first gear; 411. avoidance groove; 412. matching surface; 42. second gear;

[0037] 5. Second gear set; 51. Cut-off gear; 52. Third gear;

[0038] 6. Shell; 61. Mounting cavity; 62. Position-limiting side wall; 621. First through hole; 622. Second through hole; 623. First position-limiting opening; 624. Second position-limiting opening; 63. Assembly side wall;

[0039] 7. Elastic parts;

[0040] 8. shift baffle; 81. stop convex; 811. stop surface; 8111. stop section; 8112. guide section;

[0041] 9. Cover plate; 91. Movable cavity. DETAILED DESCRIPTION

[0042] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] The phase adjustment mechanism 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0044] Reference Figure 1-Figure 10 According to the first aspect of the present invention, the phase adjustment mechanism 100 is applied to the phase shifter. The phase adjustment mechanism 100 includes: an input rack 1, an output rack 2, a transfer gear 3, a first gear set 4 and a second gear set 5. The input rack 1 extends along the first direction, the output rack 2 extends along the first direction, the input rack 1 and the output rack 2 are arranged at intervals along the second direction, and the output rack 2 is used to connect the medium of the phase shifter. For example, the input rack 1 can be used to connect the output shaft of the driving member. The first direction is perpendicular to the second direction.

[0045] The transfer gear 3 includes a main gear 31 and a sub gear 32. The main gear 31 is meshed with the input rack 1. The sub gear 32 is connected to a side of the main gear 31 close to the output rack 2. The sub gear 32 is coaxially arranged with the main gear 31.

[0046] The first gear set 4 includes a first gear 41 and a second gear 42. The outer diameter of the first gear 41 is larger than that of the second gear 42, and the outer diameter of the first gear 41 is smaller than that of the main gear 31. The first gear 41 meshes with the output rack 2, and the first gear 41 meshes with the sub-gear 32. The second gear 42 is located at a side of the first gear 41 away from the sub-gear 32, and the second gear 42 meshes with the sub-gear 32. The second gear 42 meshes with the output rack 2, and the first gear 41 and the second gear 42 are both movable in the second direction to disconnect the meshing relationship between themselves and the output rack 2.

[0047] The second gear set 5 is arranged at one end of the auxiliary gear 32 away from the first gear set 4 in the first direction. The second gear set 5 includes a cutting gear 51 and a third gear 52. The outer diameter of the third gear 52 is larger than the outer diameter of the main gear 31. The third gear 52 is meshed with the output rack 2. The third gear 52 is meshed with the auxiliary gear 32 through the cutting gear 51. The cutting gear 51 can move along the second direction to disconnect the meshing relationship between itself and the input rack 1.

[0048] Reference Figure 3 When the phase shifter to which the phase adjustment mechanism 100 is applied needs high-precision phase adjustment, the second gear 42 can be meshed with the output rack 2, the second gear 42 can be meshed with the first gear 41, the meshing relationship between the gear 51 and the sub-gear 32 can be cut off, and the meshing relationship between the first gear 41 and the output rack 2 can be disconnected. In this way, the input rack 1 can drive the main gear 31 to rotate, the main gear 31 can drive the sub-gear 32 to rotate synchronously, the sub-gear 32 can drive the first gear 41 to rotate, the first gear 41 can drive the second gear 42 to rotate, and the second gear 42 can drive the output rack 2 to move in the first direction, so as to achieve four-level speed regulation between the input rack 1 and the output rack 2, so that the ratio between the movement speed of the output rack 2 and the movement speed of the input rack 1 is small, so that the large stroke input of the input rack 1 is converted into the small stroke output of the output rack 2, thereby achieving the fine position movement of the medium and achieving high-precision phase adjustment.

[0049] Reference Figure 5 When the phase shifter to which the phase adjustment mechanism 100 is applied needs a larger phase adjustment stroke, the cut-off gear 51 can be meshed with the sub-gear 32, the meshing relationship between the first gear 41 and the output rack 2 can be broken, and the meshing relationship between the second gear 42 and the output rack 2 can be disconnected. In this way, the input rack 1 can drive the main gear 31 to rotate, the main gear 31 drives the sub-gear 32 to rotate synchronously, the sub-gear 32 drives the cut-off gear 51 to rotate, the cut-off gear 51 drives the third gear 52 to rotate, and the third gear 52 drives the output rack 2 to move in the first direction, so as to achieve four-level speed regulation between the input rack 1 and the output rack 2, so that the ratio between the movement speed of the output rack 2 and the movement speed of the input rack 1 is larger, so that the small stroke input of the input rack 1 is converted into the large stroke output of the output rack 2, thereby realizing the large stroke position movement of the medium and the large phase stroke output of the phase adjustment mechanism 100.

[0050] Reference Figure 4When the phase shifter to which the phase adjustment mechanism 100 is applied needs a larger power output, the first gear 41 can be meshed with the output rack 2, the meshing relationship between the second gear 42 and the output rack 2 can be broken, and the meshing relationship between the gear 51 and the sub-gear 32 can be disconnected. In this way, the input rack 1 can drive the main gear 31 to rotate, the main gear 31 drives the sub-gear 32 to rotate synchronously, the sub-gear 32 drives the first gear 41 to rotate, and the first gear 41 drives the output rack 2 to move along the first direction, so as to achieve three-level speed regulation between the input rack 1 and the output rack 2, so that the torque output of the first gear 41 is larger, and the output rack 2 drives the heavier medium to move. Since the outer diameter of the first gear 41 is smaller than the outer diameter of the main gear 31, the movement speed of the output rack 2 can also be smaller than the movement speed of the input rack 1, so that the large stroke input of the input rack 1 is converted into the small stroke output of the output rack 2, so that the phase adjustment is more accurate. At the same time, this can prevent the moving speed of the output rack 2 from being too low, so that the phase adjustment structure can quickly adjust the medium to a preset position, thereby increasing the phase adjustment rate and improving the overall performance of the phase adjustment structure.

[0051] According to the phase adjustment mechanism 100 of the present invention, by setting two transmission gear sets to connect the sub-gear 32 and the output rack 2, and setting the gear in each rotating gear set to be movable along the second direction to disconnect the meshing relationship between itself and the input rack 1, different gears can be meshed with the output rack 2 to achieve motion states with different speed ratios between the output rack 2 and the input rack 1, thereby meeting the phase shifter's requirements for high-precision adjustment, meeting the phase shifter's requirements for large torque output, and meeting the phase shifter's requirements for a large stroke, thereby improving the applicability of the phase adjustment mechanism 100 and reducing the design and development costs of the phase shifter to which the phase adjustment mechanism 100 is applicable.

[0052] Reference Figure 1-Figure 5 According to some embodiments of the present invention, the phase adjustment mechanism 100 further includes: a shell 6, the shell 6 having an installation cavity 61, the transfer gear 3, the first gear set 4 and the second gear set 5 are all arranged in the installation cavity 61, and the two side walls of the installation cavity 61 in the first direction are limiting side walls 62, and the limiting side walls 62 are provided with a first through hole 621, a second through hole 622, a first limiting opening 623 and a second limiting opening 624.

[0053] The input rack 1 is passed through the first through hole 621, the first limiting opening 623 is provided on both sides of the first through hole 621 in the second direction, and the first limiting opening 623 is communicated with the first through hole 621, and the input rack 1 is provided with a first limiting convex strip 11 passed through the first limiting opening 623. The first limiting opening 623 and the first limiting convex strip 11 cooperate with each other, and the input rack 1 can be fixed relative to the housing 6 in the third direction, and the amplitude of the movement of the input rack 1 in the third direction can be reduced, so that the input rack 1 can reliably mesh with the transfer gear 3, thereby improving the reliability of the phase adjustment mechanism 100.

[0054] The output rack 2 is penetrated through the second through hole 622, the second limiting opening 624 is provided on both sides of the second through hole 622 in the second direction, and the second limiting opening 624 is communicated with the second through hole 622, and the output rack 2 is provided with a second limiting convex strip 21 which is penetrated through the second limiting opening 624. The second limiting opening 624 and the second limiting convex strip 21 cooperate with each other, and the output rack 2 can be fixed relative to the housing 6 in the third direction, and the amplitude of the movement of the output rack 2 in the third direction is reduced, so that the output rack 2 can reliably mesh with the first tooth group 4 and the second tooth group 5, thereby improving the reliability of the phase adjustment mechanism 100.

[0055] Reference Figure 1 , Figure 2 and Fig.10 In some embodiments of the present invention, a first limiting plate 22 is provided on the portion of the output rack 2 extending out of the mounting cavity 61, and the first limiting plate 22 abuts against the limiting side wall 62 in the first direction; in this way, the first limiting plate 22 can limit the output rack 2 in the first direction, thereby reducing the risk of the output rack 2 falling off the shell 6 due to a large movement stroke, and improving the reliability of the phase adjustment mechanism 100.

[0056] Reference Figure 1 , Figure 2 and Fig.10 In some embodiments of the present invention, a second limiting plate 12 is provided on the portion of the input rack 1 extending out of the mounting cavity 61, and the second limiting plate 12 abuts against the limiting side wall 62 in the first direction. In this way, the second limiting plate 12 can limit the input rack 1 in the first direction, reduce the risk of the input rack 1 falling off the housing 6 due to a large movement stroke, and improve the reliability of the phase adjustment mechanism 100.

[0057] Reference Figure 2-Figure 5 In some embodiments of the present invention, the two side walls of the mounting cavity 61 in the second direction are assembly side walls 63, the two ends of the rotating shaft of the transfer gear 3 are respectively penetrated in the corresponding assembly side walls 63, the rotating shafts of all the gears in the first gear group 4 are penetrated in the corresponding assembly side walls 63, and the rotating shafts of all the gears in the second gear group 5 are penetrated in the corresponding assembly side walls 63.

[0058] The phase adjustment mechanism 100 further includes: elastic members 7, the number of which is the same as that of all the gears movable in the second direction and corresponds one to one, one end of the elastic member 7 is connected to the corresponding gear, and the other end of the elastic member 7 is connected to the assembly side wall 63 to disconnect the meshing relationship between the corresponding gear and the output rack 2. That is, the elastic member 7 is always in an energy storage state.

[0059] In this way, the first gear 41 or one of the first gears 41 can be pressed to mesh with the output gear, and the meshing of the other with the output gear can be cut off, so that the other can reliably maintain a cut-off relationship with the output rack 2, and the cut-off gear 51 can reliably maintain a cut-off relationship with the sub-gear 32, thereby reducing the risk of the other one shaking in the second direction and meshing with the output gear, thereby causing the phase adjustment mechanism 100 to malfunction. The risk of the cut-off gear 51 shaking in the second direction and meshing with the sub-gear 32, thereby reducing the risk of the phase adjustment mechanism 100 malfunctioning, thereby improving the reliability of the phase adjustment mechanism 100.

[0060] In this way, the cutting gear 51 can be pressed to mesh with the sub-gear 32, and the meshing of the first gear 41 and the output gear can be cut off, so that the first gear 41 can reliably maintain a cut-off relationship with the output rack 2, and the meshing of the second gear 42 and the output gear can be cut off, so that the second gear 42 can reliably maintain a cut-off relationship with the output rack 2, thereby reducing the risk of the first gear 41 shaking in the second direction and meshing with the output gear to cause the phase adjustment mechanism 100 to malfunction, and reducing the risk of the second gear 42 shaking in the second direction and meshing with the output gear to cause the phase adjustment mechanism 100 to malfunction, thereby improving the reliability of the phase adjustment mechanism 100.

[0061] Reference Figure 2-Figure 5 In some embodiments of the present invention, the elastic member 7 is a spring, which is sleeved on the rotating shaft of the corresponding gear and located in the mounting cavity 61. The two ends of the elastic member 7 in the second direction are respectively abutted against the corresponding gear and the mounting side wall 63. In this way, the housing 6 can protect the elastic member 7, reduce the risk of the elastic member 7 being damaged and failing, and have a simple and reliable structure.

[0062] Reference Figure 2-Figure 6 In some embodiments of the present invention, a gear sleeved with the elastic member 7 on the rotating shaft is provided with an avoidance groove 411 opening toward the elastic member 7, and a portion of the elastic member 7 is inserted into the corresponding avoidance groove 411. In this way, the size of the elastic member 7 and the corresponding gear in the second direction can be made smaller, so that the overall structure of the phase adjustment mechanism 100 can be set more compactly.

[0063] Reference Figure 8 and Fig. 9According to some optional embodiments of the present invention, the phase adjustment mechanism 100 further includes: a shift baffle 8, which is disposed outside the mounting cavity 61 and is movably connected to the housing 6. For example, the shift baffle 8 can perform linear motion along the first direction, and the shift baffle 8 can also perform rotational motion. The shift baffle 8 has a plurality of movement positions, and the number of movement positions is the same as the number of all gears that can move along the second direction and corresponds one to one. In the movement position, the shift baffle 8 abuts against the corresponding gear in the second direction to mesh the corresponding gear with the output rack 2. It should be understood that when the shift baffle 8 abuts against the cutting rack in the second direction, the cutting rack can be meshed with the sub-gear 32. In this way, the corresponding gear can be pressed by the shift baffle 8, so that the operator does not have to press the corresponding gear all the time, thereby reducing the work intensity of the operator.

[0064] Reference Figure 1 and Figure 2 In some specific embodiments of the present invention, the phase adjustment mechanism 100 further includes a cover plate 9, which is disposed on one side of the shell 6 in the second direction, and is connected to the shell 6. The cover plate 9 and the shell 6 jointly define an active cavity 91, and the shift baffle 8 is movable in the active cavity 91. The shift baffle 8 abuts against the cover plate 9 in the second direction, so that the cover plate 9 can play a certain limiting role on the shift baffle 8, so that the shift baffle 8 can reliably press against the corresponding gear to mesh with the output gear, or reliably press against the cut-off gear 51 to mesh with the sub-gear 32, thereby improving the reliability of the phase adjustment mechanism 100.

[0065] Reference Figure 3-Figure 5 and Fig. 9 In some optional embodiments of the present invention, a stop protrusion 81 is provided on the surface of one side of the shift baffle 8 facing the mounting cavity 61. For example, when the shift baffle 8 makes a rotational motion, there may be multiple stop protrusions 81, and the number of the multiple stop protrusions 81 is the same as the number of the moving positions of the shift baffle 8 and corresponds one to one. In the moving position, the stop protrusion 81 stops against the corresponding gear.

[0066] The side surface of the stop protrusion 81 facing the installation cavity 61 is a stop surface 811, and the stop surface 811 includes a stop section 8111 and a guide section 8112. The stop section 8111 abuts against the rotating shaft of the corresponding gear in the second direction. There are two guide sections 8112, and the two guide sections 8112 are respectively connected to the two ends of the stop section 8111 in the movement direction of the shift baffle 8. In the direction away from the stop section 8111, the guide section 8112 gradually moves away from the housing 6. For example, referring to Figure 7 The surface where the rotating shaft of the corresponding gear abuts against the shift baffle 8 is a matching surface 412 , and the matching surface 412 can be an arc surface or a spherical surface protruding toward the shift baffle 8 .

[0067] In this way, the guide section 8112 can play a certain guiding role on the rotating shaft of the gear, so that the rotating shaft can slide relatively smoothly on the guide section 8112 and interact with the stop section 8111, so that the shift baffle 8 can reliably move to the preset movement position, so that the movement of the shift baffle 8 is relatively smooth, and the overall performance of the phase adjustment mechanism 100 is improved. At the same time, in this way, the stop convex 81 can generally form a triangular structure facing the gear, so that the contact area between the stop section 8111 and the rotating shaft is small, the friction between the stop convex 81 and the rotating shaft is reduced, the torque transmitted to the output rack 2 is large, the noise generated during the rotation of the gear is reduced, and the overall performance of the phase adjustment mechanism 100 is improved.

[0068] The phase shifter according to the second aspect of the present invention comprises: a medium; and the phase adjustment mechanism 100 according to the first aspect of the present invention, wherein the output rack 2 is connected to the medium.

[0069] The phase shifter according to the present invention can meet the requirements of high-precision adjustment, large torque output or large stroke through the above-mentioned phase adjustment mechanism 100, ensure the reliability of the phase shifter, and make it unnecessary to further design and develop the phase adjustment mechanism 100, thereby reducing the production cost of the phase shifter and improving the overall performance of the phase shifter.

[0070] The antenna according to the embodiment of the third aspect of the present invention is characterized by comprising: a phase shifter according to the embodiment of the second aspect of the present invention.

[0071] According to the antenna of the present invention, the above-mentioned phase shifter can ensure the reliability of the antenna operation, reduce the production cost of the antenna, and improve the overall performance of the antenna.

[0072] In the description of the present invention, it is to be understood that relational terms such as "first" and "second" are used only 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 "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising 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, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0073] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0075] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A phase adjustment mechanism, used in a phase shifter, characterized in that: include: An input rack and an output rack extending along a first direction, the input rack and the output rack being arranged at intervals along a second direction, and the output rack being used to connect to a medium of the phase shifter; A transfer gear, comprising a main gear and a sub gear, wherein the main gear is meshed with the input rack, and the sub gear is connected to a side of the main gear close to the output rack and is coaxially arranged with the main gear; a first gear set, comprising a first gear and a second gear meshing with the output rack, the outer diameter of the first gear being larger than the outer diameter of the second gear and smaller than the outer diameter of the main gear, the first gear meshing with the sub-gear, the second gear being located at a side of the first gear away from the sub-gear and meshing with the sub-gear, the first gear and the second gear both being movable along the second direction to disconnect the meshing relationship between themselves and the output rack; a second gear set, provided at one end of the secondary gear away from the first gear set in the first direction and comprising a cut-off gear and a third gear, the outer diameter of the third gear being greater than the outer diameter of the main gear and meshing with the output rack, the third gear meshing with the secondary gear through the cut-off gear, the cut-off gear being movable along the second direction to disconnect the meshing relationship between itself and the input rack; The first direction is perpendicular to the second direction.

2. The phase adjustment mechanism according to claim 1, characterized in that: Also includes: A shell, wherein the shell has an installation cavity, the transfer gear, the first gear group and the second gear group are all arranged in the installation cavity, the two side walls of the installation cavity in the first direction are limiting side walls, and the limiting side walls are provided with a first through hole, a second through hole, a first limiting opening and a second limiting opening, the input rack is passed through the first through hole, the output rack is passed through the second through hole, the first limiting opening is arranged on both sides of the first through hole in the second direction and is connected with the first through hole, the input rack is provided with a first limiting convex strip passed through the first limiting opening, the second limiting opening is arranged on both sides of the second through hole in the second direction and is connected with the second through hole, and the output rack is provided with a second limiting convex strip passed through the second limiting opening.

3. The phase adjustment mechanism according to claim 2, characterized in that: A first limiting plate is provided on the portion of the output rack extending out of the mounting cavity, and the first limiting plate abuts against the limiting side wall in the first direction; And / or, a second limiting plate is provided on the portion of the input rack extending out of the mounting cavity, and the second limiting plate abuts against the limiting side wall in the first direction.

4. The phase adjustment mechanism according to claim 2, characterized in that: The two side walls of the installation cavity in the second direction are assembly side walls, and the two ends of the rotating shaft of the transfer gear are respectively inserted into the corresponding assembly side walls, the rotating shafts of all the gears in the first gear set are inserted into the corresponding assembly side walls, and the rotating shafts of all the gears in the second gear set are inserted into the corresponding assembly side walls. The phase adjustment mechanism also includes: an elastic member, the number of which is the same as and corresponds to all the gears movable along the second direction, one end of the elastic member is connected to the corresponding gear, and the other end is connected to the assembly side wall to disconnect the meshing relationship between the corresponding gear and the output rack.

5. The phase adjustment mechanism according to claim 4, characterized in that: The elastic member is a spring, which is sleeved on the rotating shaft of the corresponding gear and located in the installation cavity. The two ends of the elastic member in the second direction are respectively abutted against the corresponding gear and the assembly side wall.

6. The phase adjustment mechanism according to claim 5, characterized in that: An avoidance groove is provided on the gear on which the elastic member is sleeved on the rotating shaft, and a part of the elastic member is inserted into the corresponding avoidance groove.

7. The phase adjustment mechanism according to claim 4, characterized in that: Also includes: A shift baffle, wherein the shift baffle is disposed outside the mounting cavity and is movably connected to the housing, wherein the shift baffle has a plurality of moving positions, wherein the number of the moving positions is the same as and corresponds one to one to the number of all gears movable along the second direction, and wherein at the moving position, the shift baffle abuts against the corresponding gear in the second direction to engage the corresponding gear with the output rack.

8. The phase adjustment mechanism according to claim 7, characterized in that: A stop protrusion is provided on one side surface of the shift baffle plate facing the installation cavity, and the stop protrusion is provided on one side surface facing the installation cavity as a stop surface. The stop surface includes a stop section and a guide section. The stop section abuts against the rotating shaft of the corresponding gear in the second direction. There are two guide sections and they are respectively connected to the two ends of the stop section in the movement direction of the shift baffle plate. In the direction away from the stop section, the guide section gradually moves away from the shell.

9. A phase shifter, characterized in that: include: medium; According to the phase adjustment mechanism according to any one of claims 1-8, the output rack is connected to the medium.

10. An antenna, characterized in that: include: The phase shifter according to claim 9.

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