Stirring barrel for food processing

Abstract

The invention relates to the technical field of food processing, and discloses a food processing stirring barrel which comprises a mixing barrel and a base used for supporting the mixing barrel. The supporting assembly comprises a first supporting body, a second supporting body, a connecting ring and a driving motor, the mixing barrel is rotationally connected with the first supporting body, the first supporting body is rotationally connected with the connecting ring, the connecting ring is rotationally connected with the second supporting body, and the driving motor on the side wall of the second supporting body pushes the connecting ring to swing in the X-axis direction; the driving motor on the wall surface of the connecting ring pushes the first supporting body to swing in the Z-axis direction, materials in the mixing barrel are extruded and mixed along with swinging of the mixing barrel, the mixing effect is improved, the mixing efficiency is improved, the structure is simple, and the mixing barrel is suitable for popularization and use; the materials can passively contact with the stirring rod through shaking of the materials, so that mixing is promoted.

Description

Technical Field

[0001] The invention relates to the technical field of food processing, in particular to a stirring barrel for food processing. Background Art

[0002] The mixing barrel is a commonly used machine in food processing. It mainly uses the stirring rod to stir the materials in the barrel to promote uniform mixing of the materials.

[0003] Publication No. CN218944970U discloses a prior art entitled a raw material mixing barrel for food processing, comprising a base, an adjusting mechanism being arranged at the top end of the base near the rear end, a stirring mechanism being arranged above the base, the stirring mechanism comprising a barrel body and two supporting plates, one of the two supporting plates being fixedly mounted at the top end of the base near the front end on one side, and the other being fixedly mounted at the top end of the base near the front end on the other side, the barrel body being movably mounted on the inner sides of the two supporting plates, a top cover being arranged at the top end of the barrel body, a stirring motor being fixedly mounted at a center position penetrating through the upper and lower ends of the top cover, a stirring rod being fixedly connected at the bottom end of the stirring motor via a machine shaft, a plurality of stirring blades being fixedly connected to the outer ring of the stirring rod, and an electric telescopic rod two being fixedly mounted at a center position close to the front end and the rear end and penetrating through the upper and lower ends of the top cover.

[0004] In the prior art, the mixing of materials is mainly achieved by rotating the stirring rod. In actual use, the mixing of materials, especially the mixing of fluid materials, completely relies on the stirring of the stirring rod. The materials that sink to the bottom are difficult to be turned over, and thus the mixing effect and efficiency are limited. If the mixing barrel can be shaken so that the materials are squeezed against each other and cooperated with the stirring rod, the flow characteristics of the materials can be improved, thereby promoting the mixing of the materials.

[0005] Therefore, we propose a mixing barrel for food processing. Summary of the invention

[0006] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides a stirring barrel for food processing.

[0007] In order to achieve the above object, the present invention adopts the following technical solution, a mixing barrel for food processing, comprising:

[0008] A mixing cylinder and a base for supporting the mixing cylinder, wherein the mixing cylinder is movably arranged above the base.

[0009] A swing assembly is arranged between the mixing cylinder and the base for supporting the base, the support assembly comprises a first support body, a second support body, a connecting ring and a driving motor, the mixing cylinder is rotatably connected to the first support body, the first support body is rotatably connected to the connecting ring, the connecting ring is rotatably connected to the second support body, and a driving motor is respectively arranged on the side walls of the second support body and the connecting ring for driving the connecting ring and the first support body to swing along two axial directions;

[0010] The stirring structure is arranged in the mixing barrel cavity for turning the materials. The stirring structure comprises a stirring shaft, which is rotatably arranged in the mixing barrel cavity. A stirring motor is fixedly installed on the top of the mixing barrel to drive the stirring shaft to rotate.

[0011] As a preferred embodiment of the present invention, the stirring structure further includes a first stirring rod and a second stirring rod, and the first stirring rod and the second stirring rod are both fixedly connected to the stirring shaft.

[0012] As a preferred embodiment of the present invention, the first stirring rod forms a spiral rod structure, the second stirring rod forms a rectangular frame structure, and the first stirring rod and the second stirring rod are distributed at 90 degrees.

[0013] As a preferred embodiment of the present invention, the stirring structure further comprises a paddle plate, and two paddle plates are symmetrically arranged on the wall surface of the second stirring rod, and the paddle plates can slide and flip along the second stirring rod.

[0014] As a preferred embodiment of the present invention, the stirring structure also includes a connecting shaft, a connecting block, a sliding channel and a thrust groove, the paddle plate is fixedly connected to the connecting shaft, the connecting shaft is fixedly connected to the connecting block, the second stirring rod is provided with a sliding channel, and a plurality of thrust grooves are provided on the inner side wall of the sliding channel, the connecting block is located in the sliding channel, and the sliding channel can rotate and engage with the thrust groove.

[0015] As a preferred embodiment of the present invention, the stirring structure also includes a thrust block and a limit shaft, both of which are fixedly connected to the connecting block, the limit shaft is slidably arranged in the sliding channel, and the connecting block can be flipped to enable the thrust block to be stuck in the thrust groove at the corresponding position.

[0016] As a preferred embodiment of the present invention, the sliding channel forms a rectangular groove, the connecting block is a rectangular block, and the length of the connecting block is smaller than the width of the sliding channel.

[0017] As a preferred embodiment of the present invention, the thrust block and the connecting block are integrally formed, the thrust block forms a semi-cylindrical protrusion, the thrust groove is a semi-circular groove, the thrust block and the thrust groove cooperate with each other, and a number of identical thrust grooves are provided on the inner walls on both sides of the sliding channel.

[0018] As a preferred embodiment of the present invention, the limiting shaft is a cylindrical structure, and the diameter of the limiting shaft is equal to the width of the sliding channel.

[0019] As a preferred embodiment of the present invention, the first support body and the second support body are both U-shaped frame structures, the width of the second support body is greater than that of the first support body, the connecting ring is annular, and the side wall of the connecting ring is fixedly provided with an ear plate, the ear plate is rotatably connected to the second support body, a driving motor is fixedly installed on the side wall of the second support body, the output shaft of the driving motor is fixedly connected to the ear plate, another driving motor is fixedly installed on the wall surface of the connecting ring, and the output shaft of the driving motor on the wall surface of the connecting ring is fixedly connected to the first support body.

[0020] The present invention provides a stirring barrel for food processing, which has the following beneficial effects:

[0021] 1. A mixing barrel for food processing, in which a driving motor on the side wall of the second support body drives the connecting ring to swing in the X-axis direction, and a driving motor on the wall of the connecting ring drives the first support body to swing in the Z-axis direction. The material in the mixing barrel is squeezed and mixed as the mixing barrel swings, thereby improving the mixing effect and the mixing efficiency. The structure is simple and suitable for popularization and use. The swingable design cooperates with the stirring shaft to make the material shake, and the shaking of the material can make it passively contact the stirring rod, thereby promoting mixing.

[0022] 2. The mixing barrel for food processing has a U-shaped first support body and a second support body, so that there is no motion interference during the swinging of the mixing barrel and the first support body, thereby ensuring the stability of operation.

[0023] 3. A stirring barrel for food processing is fixedly connected to the stirring shaft through the output shaft of the stirring motor, and the stirring shaft drives the first stirring rod and the second stirring rod to stir the material. The spiral first stirring rod is suitable for stirring egg white to make it foam, and can also stir flour so that the flour is kneaded to form dough, simulating the continuous folding of the dough by the hands to promote the proofing of the dough. The second stirring rod with a rectangular frame structure cooperates with the first stirring rod to stir liquids. It is suitable for mixing a variety of liquids, has stronger functionality, and has a wider range of applications.

[0024] 4. A mixing barrel for food processing, wherein the first mixing rod and the second mixing rod move in a circular motion along with the mixing shaft, the first mixing rod spirally extends from the wall surface of the mixing shaft toward the inner wall of the second mixing rod, and the first mixing rod can push the material at the center of the mixing barrel toward the inner wall thereof during the circular motion, and cooperate with the second mixing rod to shear the material near the inner wall of the mixing barrel, which helps to improve the material mixing speed and effect

[0025] 5. The stirring barrel for food processing is provided with a paddle plate, which slides along the horizontal part of the second stirring rod to adjust the position, and cooperates with the first stirring rod and the second stirring rod to better stir the material, so that the material is squeezed and mixed, and the mixing of the material is further promoted.

[0026] 6. A mixing barrel for food processing slides in a sliding channel through a limiting shaft. When the paddle plate stirs the material, the material applies a torque in a certain circumferential direction to the paddle plate, and the paddle plate drives the connecting shaft and the connecting block to rotate a certain angle. As the connecting block rotates, the sliding channel is inserted into the thrust groove at the corresponding position, and the position of the paddle plate is locked. The position can be adjusted according to the thrust force applied to the paddle plate by the material. The paddle plate can slide along the horizontal part of the second stirring rod to adjust the stirring position to adapt to the viscosity of the material.

[0027] 7. This kind of mixing barrel for food processing, through the swing of the mixing barrel, cooperates with the paddle board that can slide to adjust the position. The paddle board has a certain range of motion and can be adjusted according to the swing of the mixing barrel and the thrust of the material to the paddle board. As the position of the paddle board changes, the position of the paddle board stirring the material changes, and then the position can be adaptively adjusted according to the different physical properties of the material in the early and late stages of mixing, which has better practicality and flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is one of the overall stereograms of the present invention;

[0029] Figure 2 This is the second overall stereogram of the present invention;

[0030] Figure 3 A stereoscopic diagram of the mixing cylinder of the present invention with a swing assembly installed;

[0031] Figure 4 This is a schematic diagram of the internal structure of the mixing cylinder of the present invention;

[0032] Figure 5 This is a three-dimensional diagram of the stirring structure of the present invention;

[0033] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0034] Figure 7 is a partial stereoscopic diagram of the second stirring rod;

[0035] Figure 8 A three-dimensional diagram of the connecting block and the limit axis.

[0036] Legend: 10, mixing barrel; 11, base; 12, first support body; 13, second support body; 14, connecting ring; 15, driving motor; 20, stirring shaft; 21, first stirring rod; 22, second stirring rod; 23, paddle; 30, connecting shaft; 31, connecting block; 32, sliding channel; 33, thrust groove; 34, thrust block; 35, limiting shaft. DETAILED DESCRIPTION

[0037] A mixing barrel for food processing, such as Figure 1 and Figure 2 As shown, including:

[0038] A mixing drum 10 and a base 11 for supporting the mixing drum 10, wherein the mixing drum 10 is movably arranged above the base 11, wherein the mixing drum 10 forms a sealed tank structure, windows are provided at the top and bottom of the mixing drum 10, a discharge pipe is fixedly provided at the bottom of the mixing drum 10, and the discharge pipe is located in the window at the bottom, and raw materials can be added through the window at the top of the mixing drum 10 so that the raw materials are mixed and stirred in the cavity of the mixing drum 10.

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, the swing assembly is arranged between the mixing drum 10 and the base 11 for supporting the base 11, and the support assembly includes a first support body 12, a second support body 13, a connecting ring 14 and a driving motor 15. The mixing drum 10 is rotatably connected to the first support body 12, the first support body 12 is rotatably connected to the connecting ring 14, and the connecting ring 14 is rotatably connected to the second support body 13. The side walls of the second support body 13 and the connecting ring 14 are respectively provided with a driving motor 15 for driving the connecting ring 14 and the first support body 12 to swing along two axes. The first support body 12 and the second support body 13 are respectively provided with a driving motor 15. The two supports 13 are both U-shaped frame structures. The width of the second support 13 is greater than that of the first support 12. The connecting ring 14 is annular. The side wall of the connecting ring 14 is fixed with an ear plate, which is rotatably connected to the second support 13. A driving motor 15 is fixedly installed on the side wall of the second support 13. The output shaft of the driving motor 15 is fixedly connected to the ear plate. Another driving motor 15 is fixedly installed on the wall of the connecting ring 14. The output shaft of the driving motor 15 on the wall of the connecting ring 14 is fixedly connected to the first support 12. The second support 13 is fixedly installed on the top of 11;

[0040] In the present solution, the mixing drum 10 is mainly swung in the X-axis and Z-axis directions to promote the extrusion and mixing of the materials in the mixing drum 10. Specifically, the driving motor 15 on the side wall of the second support body 13 drives the connecting ring 14 to swing in the X-axis direction, and the driving motor 15 on the wall of the connecting ring 14 drives the first support body 12 to swing in the Z-axis direction. The materials in the mixing drum 10 are extruded and mixed as the mixing drum 10 swings, thereby improving the mixing effect and the mixing efficiency. The structure is simple and suitable for popularization and use. The swingable design cooperates with the stirring shaft to make the materials shake. When the mixing drum 10 is in a tilted state, the materials will flow in the tilted direction under the action of gravity. Both the liquid at the bottom and the upper layer of the mixing drum 10 will flow. As the mixing drum 10 swings repeatedly, the material fluidity will be stronger, and the shaking of the materials can make them passively contact the stirring rod, thereby promoting mixing.

[0041] The U-shaped first support body 12 and the second support body 13 prevent motion interference during the swinging of the mixing drum 10 and the first support body 12, thereby ensuring the stability of operation.

[0042] like Figure 4 and Figure 5 As shown, a stirring structure is arranged in the cavity of the mixing drum 10 for turning the material, the stirring structure includes a stirring shaft 20, the stirring shaft 20 is rotatably arranged in the cavity of the mixing drum 10, a stirring motor is fixedly installed on the top of the mixing drum 10 to drive the stirring shaft 20 to rotate, the stirring structure also includes a first stirring rod 21 and a second stirring rod 22, the first stirring rod 21 and the second stirring rod 22 are both fixedly connected to the stirring shaft 20, the first stirring rod 21 forms a spiral rod structure, the second stirring rod 22 forms a rectangular frame structure, and the first stirring rod 21 and the second stirring rod 22 are distributed at ninety degrees;

[0043] In the present solution, in order to stir the material in the mixing drum 10, the stirring motor output shaft is fixedly connected to the stirring shaft 20, and the stirring shaft 20 drives the first stirring rod 21 and the second stirring rod 22 to stir the material. The spiral first stirring rod 21 is suitable for stirring egg white to make it foam, and can also stir flour so that the flour is kneaded to form dough, simulating the continuous folding of the dough by the hands to promote the proofing of the dough. The second stirring rod 22 with a rectangular frame structure cooperates with the first stirring rod 21 to stir liquids, which is suitable for mixing a variety of liquids, has stronger functionality, and has a wider range of applications.

[0044] By the first stirring rod 21 and the second stirring rod 22 moving in a circular motion along with the stirring shaft 20, the first stirring rod 21 spirally extends from the wall surface of the stirring shaft 20 toward the inner wall of the second stirring rod 22, so that the first stirring rod 21 can push the material at the center position of the mixing barrel 10 toward its inner wall during the circular motion, and cooperate with the second stirring rod 22 to shear the material near the inner wall of the mixing barrel 10, which helps to improve the material mixing speed and effect.

[0045] like Figure 5 As shown, the stirring structure also includes a paddle plate 23. Two paddle plates 23 are symmetrically arranged on the wall of the second stirring rod 22. The paddle plates 23 can slide and flip along the second stirring rod 22. By setting the paddle plates 23, the paddle plates 23 can slide along the horizontal part of the second stirring rod 22 to adjust their position. In conjunction with the first stirring rod 21 and the second stirring rod 22, the materials can be better stirred, so that the materials are squeezed and mixed, further promoting the mixing of the materials.

[0046] like Figure 5 , Figure 6 and Figure 7 as well as Figure 8 As shown, the stirring structure also includes a connecting shaft 30, a connecting block 31, a sliding channel 32 and a thrust groove 33, the paddle 23 is fixedly connected to the connecting shaft 30, the connecting shaft 30 is fixedly connected to the connecting block 31, the second stirring rod 22 is provided with a sliding channel 32, and a plurality of thrust grooves 33 are provided on the inner side wall of the sliding channel 32, the connecting block 31 is located in the sliding channel 32, the sliding channel 32 can rotate and be engaged with the thrust groove 33, the stirring structure also includes a thrust block 34 and a limiting shaft 35, the thrust block 34 and the limiting shaft 35 are both fixedly connected to the connecting block 31, and the limiting shaft 35 is slidably arranged in the sliding channel 3 2, the connection block 31 is turned over so that the thrust block 34 can be inserted into the thrust groove 33 at the corresponding position, the sliding channel 32 forms a rectangular groove, the connection block 31 is a rectangular block, the length of the connection block 31 is less than the width of the sliding channel 32, the thrust block 34 and the connection block 31 are integrally formed, the thrust block 34 forms a semi-cylindrical protrusion, the thrust groove 33 is a semi-circular groove, the thrust block 34 and the thrust groove 33 cooperate with each other, the inner walls on both sides of the sliding channel 32 are provided with a plurality of identical thrust grooves 33, the limiting shaft 35 is a cylindrical structure, and the diameter of the limiting shaft 35 is equal to the width of the sliding channel 32;

[0047] In the present solution, in order to adjust and lock the position of the paddle plate 23, the limit shaft 35 slides in the sliding channel 32. When the paddle plate 23 stirs the material, the material applies a torque in a certain circumferential direction to the paddle plate 23, and the paddle plate 23 drives the connecting shaft 30 and the connecting block 31 to rotate a certain angle. As the connecting block 31 rotates, the sliding channel 32 is inserted into the thrust groove 33 at the corresponding position, and the position of the paddle plate 23 is locked. The thrust force applied to the paddle plate 23 by the material can be adjusted, and the paddle plate 23 can slide along the horizontal part of the second stirring rod 22 to adjust the stirring position to adapt to the viscosity of the material.

[0048] The mixing drum 10 is swung in cooperation with the paddle board 23 which can slide to adjust its position. The paddle board 23 has a certain range of motion and can be adjusted according to the swing of the mixing drum 10 and the thrust of the material on the paddle board 23. As the position of the paddle board 23 changes, the position of the paddle board 23 stirring the material changes, and the position can be adaptively adjusted according to the different physical properties of the material in the early and late stages of mixing, which has better practicality and flexibility of use.

[0049] The working principle of the present invention is as follows: windows are provided at the top and bottom of the mixing barrel 10, a discharge pipe is fixedly provided at the bottom of the mixing barrel 10, and the discharge pipe is located in the window at the bottom, and raw materials can be added through the window at the top of the mixing barrel 10 so that the raw materials are mixed and stirred in the cavity of the mixing barrel 10;

[0050] The driving motor 15 on the side wall of the second support body 13 drives the connecting ring 14 to swing in the X-axis direction, and the driving motor 15 on the wall of the connecting ring 14 drives the first support body 12 to swing in the Z-axis direction. The material in the mixing drum 10 is squeezed and mixed as the mixing drum 10 swings. The output shaft of the stirring motor is fixedly connected to the stirring shaft 20, and the stirring shaft 20 drives the first stirring rod 21 and the second stirring rod 22 to stir the material. The spiral first stirring rod 21 is suitable for stirring egg white to make it foam, and can also stir flour so that the flour is kneaded to form dough, simulating the hands to fold the dough continuously to promote the dough to rise. The second stirring rod 22 with a rectangular frame structure cooperates with the first stirring rod 21 to stir liquid, which is suitable for For mixing of multiple liquids, a paddle 23 is provided. The paddle 23 slides along the horizontal part of the second stirring rod 22 to adjust its position. In cooperation with the first stirring rod 21 and the second stirring rod 22, the materials can be stirred better. The limit shaft 35 slides in the sliding channel 32. When the paddle 23 stirs the materials, the materials give the paddle 23 a torque in a certain circumferential direction, and then the paddle 23 drives the connecting shaft 30 and the connecting block 31 to rotate a certain angle. As the connecting block 31 rotates, the sliding channel 32 is stuck in the thrust groove 33 at the corresponding position, and then the position of the paddle 23 is locked. The thrust of the paddle 23 given by the materials can be adjusted, and then the position can be adaptively adjusted according to the different physical properties of the materials in the early and late stages of stirring.

[0051] The driving motor 15 can adopt a reduction motor, which is a well-known existing technology. The reduction motor should at least include a reduction box and a motor. The motor adopts a forward and reverse motor, and its specifications are not subject to excessive restrictions. The stirring motor and the driving motor both need to be connected to the power supply with the help of a controller, and the specific specifications and connection methods are not repeated here.

[0052] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A mixing barrel for food processing, characterized in that: include: A mixing cylinder (10) and a base (11) for supporting the mixing cylinder (10), wherein the mixing cylinder (10) is movably arranged above the base (11). A swing assembly is arranged between the mixing barrel (10) and the base (11) for supporting the base (11), the support assembly comprising a first support body (12), a second support body (13), a connecting ring (14) and a driving motor (15), the mixing barrel (10) is rotatably connected to the first support body (12), the first support body (12) is rotatably connected to the connecting ring (14), the connecting ring (14) is rotatably connected to the second support body (13), and a driving motor (15) is respectively arranged on the side walls of the second support body (13) and the connecting ring (14) for driving the connecting ring (14) and the first support body (12) to swing along two axial directions; A stirring structure is arranged in the cavity of the mixing barrel (10) for turning the material, and the stirring structure comprises a stirring shaft (20). The stirring shaft (20) is rotatably arranged in the cavity of the mixing barrel (10), and a stirring motor is fixedly installed on the top of the mixing barrel (10) to drive the stirring shaft (20) to rotate.

2. The stirring barrel for food processing according to claim 1, characterized in that: The stirring structure further comprises a first stirring rod (21) and a second stirring rod (22), wherein the first stirring rod (21) and the second stirring rod (22) are both fixedly connected to the stirring shaft (20).

3. The stirring barrel for food processing according to claim 2, characterized in that: The first stirring rod (21) forms a spiral rod structure, the second stirring rod (22) forms a rectangular frame structure, and the first stirring rod (21) and the second stirring rod (22) are distributed at a 90-degree angle.

4. The stirring barrel for food processing according to claim 1, characterized in that: The stirring structure further comprises a paddle plate (23), two paddle plates (23) are symmetrically arranged on the wall surface of the second stirring rod (22), and the paddle plates (23) can slide and flip along the second stirring rod (22).

5. The stirring barrel for food processing according to claim 4, characterized in that: The stirring structure further comprises a connecting shaft (30), a connecting block (31), a sliding channel (32) and a thrust groove (33); the paddle plate (23) is fixedly connected to the connecting shaft (30); the connecting shaft (30) is fixedly connected to the connecting block (31); the second stirring rod (22) is provided with a sliding channel (32); a plurality of thrust grooves (33) are provided on the inner side wall of the sliding channel (32); the connecting block (31) is located in the sliding channel (32); the sliding channel (32) is rotatable and is engaged with the thrust groove (33).

6. The stirring barrel for food processing according to claim 5, characterized in that: The stirring structure further comprises a thrust block (34) and a limiting shaft (35), wherein the thrust block (34) and the limiting shaft (35) are both fixedly connected to the connecting block (31), the limiting shaft (35) is slidably arranged in the sliding channel (32), and the connecting block (31) is turned over so that the thrust block (34) can be inserted into the thrust groove (33) at the corresponding position.

7. The stirring barrel for food processing according to claim 5, characterized in that: The sliding channel (32) forms a rectangular groove, the connecting block (31) is a rectangular block, and the length of the connecting block (31) is smaller than the width of the sliding channel (32).

8. The stirring barrel for food processing according to claim 6, characterized in that: The thrust block (34) and the connecting block (31) are integrally formed, the thrust block (34) forms a semi-cylindrical protrusion, the thrust groove (33) is a semi-circular groove, the thrust block (34) and the thrust groove (33) cooperate with each other, and a plurality of identical thrust grooves (33) are provided on the inner walls on both sides opposite to each other of the sliding channel (32).

9. The stirring barrel for food processing according to claim 6, characterized in that: The limiting shaft (35) is a cylindrical structure, and the diameter of the limiting shaft (35) is equal to the width of the sliding channel (32).

10. The stirring barrel for food processing according to claim 1, characterized in that: The first support body (12) and the second support body (13) are both U-shaped frame structures, the width of the second support body (13) is greater than the width of the first support body (12), the connecting ring (14) is annular, the side wall of the connecting ring (14) is fixedly provided with an ear plate, the ear plate is rotatably connected to the second support body (13), a driving motor (15) is fixedly installed on the side wall of the second support body (13), the output shaft of the driving motor (15) is fixedly connected to the ear plate, another driving motor (15) is fixedly installed on the wall surface of the connecting ring (14), and the output shaft of the driving motor (15) on the wall surface of the connecting ring (14) is fixedly connected to the first support body (12).

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