A shaking device for detecting phosphorus content in silicon-aluminum alloy mixed solution

Abstract

The present invention relates to the technical field of solution mixing, and discloses a shaking device for detecting phosphorus content in silicon aluminum alloy, including a bracket assembly, wherein the bracket assembly includes a base, and two parallel distributed support rods are fixedly installed on one side of the top of the base, and the tops of the support rods are commonly connected to a fixed disc; and a motor is fixedly installed on one side of the fixed disc. The present invention drives the L-shaped rotating frame to rotate by a motor, and cooperates with a synchronous rotating assembly to realize multi-angle rotation of the volumetric bottle in the limit bottle, thereby promoting the mixing effect of the mixed liquid in the volumetric bottle, and utilizes the cooperation of the connecting plate and the locking assembly to enable the pressure block to squeeze and fix the top of the volumetric bottle while simultaneously realizing the circumferential embracing fixation of the volumetric bottle, and the fixing operation is simple, and the fixing method has a locking effect, which further ensures the stability of the volumetric bottle during rotation and prevents leakage of the mixed liquid.

Description

Technical Field

[0001] The invention relates to the technical field of solution mixing, in particular to a shaking device for detecting a mixed solution of phosphorus content in a silicon-aluminum alloy. Background Art

[0002] Phosphorus and sulfur in silicon-aluminum alloys are harmful elements that will affect the plasticity, toughness and welding performance of the alloy materials and their application products. Therefore, during the processing of silicon-aluminum alloys, it is necessary to use acid dissolution or alkali fusion to detect the phosphorus and sulfur content in the alloy samples. During the alkali fusion method, a volumetric flask is required to make the mixed liquid volumetric and shake it evenly, and then the color absorbance is measured.

[0003] Chinese patent authorization announcement number CN211864788U discloses a device that can shake the solution in a volumetric flask up and down, including a frame, a transmission shaft is horizontally passed through the frame, one end of the transmission shaft is connected to a power machine, and a rotating table is arranged on the transmission shaft; a first slide is arranged on the bottom plate of the rotating table, and a plurality of clamps for fixing the volumetric flask are slidably connected in the first slide; the device can automatically shake a plurality of volumetric flasks at the same time, with good shaking effect and improved efficiency.

[0004] The above-mentioned prior art solution has the following shortcomings: the device mainly utilizes a power machine to drive the rotating table to rotate, thereby achieving mixing of solutions in multiple volumetric flasks, but the rotational movement direction of the volumetric flask in the structure is too single, so that the mixing effect of the solutions in the volumetric flask is general, and because the top of the volumetric flask in the structure is elastically squeezed by the second elastic member to ensure the sealing of the volumetric flask mouth, the pressure on the second elastic member changes during the flipping of the volumetric flask, which easily causes the volumetric flask to slide up and down in the pallet, thereby making the flipping process of the entire volumetric flask unstable and prone to frequent collisions, so there is room for improvement. Summary of the invention

[0005] The purpose of the present invention is to provide a shaking device for detecting the phosphorus content in silicon-aluminum alloy mixed solution, so as to solve the problem that the existing shaking device for detecting the phosphorus content in silicon-aluminum alloy mixed solution proposed in the above background technology is not easy to mix the mixed solution at multiple angles and is not easy to lock the top of the volumetric flask.

[0006] To achieve the above object, the present invention provides the following technical solution: a shaking device for detecting phosphorus content in silicon-aluminum alloy mixed solution, comprising a bracket assembly, the bracket assembly comprising a base, and two parallel supporting rods are fixedly installed on one side of the top of the base, and the tops of the supporting rods are commonly connected to a fixed disc;

[0007] The motor is fixedly installed on one side of the fixed disk, and the output end of the motor passes through the center of the fixed disk and is connected to the L-shaped rotating frame, the bottom end of the L-shaped rotating frame passes through a rotating disk, and the rotating disk and the L-shaped rotating frame are rotatably connected, a limit bottle is fixed on one side of the top center of the rotating disk, and a protective pad is fixed on the top of the rotating disk on one side of the limit bottle, the inner cavity structure size of the limit bottle is half the size of the volumetric bottle, an adjusting pressing assembly is provided on the side of the top of the limit bottle close to the fixed disk, and a pressure block is connected to one side of the adjusting pressing assembly, the pressing block is driven to squeeze downward by adjusting the pressing assembly, so that the pressure block generates a downward squeezing force on the top sealing plug of the volumetric bottle to prevent the sealing plug from falling off during the flipping process of the volumetric bottle, the bottom end of the pressure block passes through the interior of the limit bottle, and a synchronous rotating assembly is provided at the bottom end of the rotating disk, which is used to make the limit bottle rotate synchronously when rotating along the axis of the fixed disk, thereby improving the shaking effect of the mixed liquid inside the volumetric bottle in the limit bottle.

[0008] Preferably, the adjusting and pressing assembly includes a fixed block fixed to the top end of the outer side of the limiting bottle, and a screw is fixed to the top end of the fixed block, the outer sleeve of the screw is provided with a rotating sleeve, and the outer sleeve of the rotating sleeve is provided with a connecting block, and one side of the connecting block is connected to the top end of one side of the pressing block.

[0009] Preferably, the rotating sleeve and the screw rod are threadedly connected, and the rotating sleeve and the connecting block are rotationally connected.

[0010] Preferably, the synchronous rotation component includes an outer gear ring installed on the periphery of the bottom end of the rotating disk, and a pinion gear is meshed on one side of the outer gear ring, the connecting shaft of the pinion gear is connected to the bottom end of the L-shaped rotating frame, a rotating shaft is fixed to the center of the bottom end face of the pinion gear, and a bevel gear is connected to the bottom end of the rotating shaft, an inner bevel gear ring is fixed to the outer edge of one side of the fixed disk close to the L-shaped rotating frame, and the inner side of the inner bevel gear ring is meshed with the outer side of the bevel gear.

[0011] Preferably, a fixed guide sleeve 1 is installed on one side of the limiting bottle below the fixed block, and a fixed guide sleeve 2 is installed on one side of the limiting bottle below the fixed guide sleeve 1, a connecting plate passes through the fixed guide sleeve 1 and the fixed guide sleeve 2, and the top of the connecting plate is fixedly connected to the outer side of the fixed block, two groups of clamping components distributed up and down are provided on the outer side of the limiting bottle, and a locking component is connected between one side of the clamping component and one side of the connecting plate.

[0012] Preferably, each group of the clamping assemblies is provided with two, and the two clamping assemblies are distributed symmetrically about the central axis of the limiting bottle. The clamping assemblies are used to embrace the opening of the limiting bottle to cooperate with the limiting bottle to embrace and clamp the periphery of the volumetric bottle.

[0013] Preferably, the clamping assembly includes a clamping plate rotatably connected to one side of the limiting bottle, and a clamping block is fixed to the side of the clamping plate close to the opening of the limiting bottle, and a torsion spring is connected between the other side of the torsion spring and the outer wall of the limiting bottle, and the torsion spring is used to ensure that the inner side of the clamping block is always pressed toward the opening of the limiting bottle.

[0014] Preferably, the locking assembly includes a special-shaped plate installed on the outside of the connecting plate, and a guide hole is opened on the side of the special-shaped plate close to the clamping assembly, a locking rod is inserted into the guide hole, and one side of the locking rod is connected to an end of the clamping plate close to the torsion spring.

[0015] Preferably, the guide hole is inclined, and the distance between the guide hole and the outer wall of the limiting bottle gradually decreases from top to bottom.

[0016] Preferably, the locking rod and the guide hole are movably connected, and the outer side of the locking rod always abuts against the inner side wall of the guide hole.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The L-shaped rotating frame is driven by a motor to rotate, so that the volumetric bottle located in the limit bottle rotates synchronously, thereby realizing the upside-down rotation of the volumetric bottle to promote the fusion of the mixed liquid. At the same time, the rotation of the limit bottle is used in conjunction with the synchronous rotation component. Under the meshing effect of the bevel gear and the inner bevel gear ring, the rotating disk is synchronously rotated during the rotation of the L-shaped rotating frame, so that the volumetric bottle rotates, realizing the multi-angle rotation of the volumetric bottle, so as to improve the angular direction diversity of the mixed liquid inside the volumetric bottle, thereby further promoting the mixing effect of the mixed liquid;

[0019] (2) By rotating the screw sleeve, the pressure block is screwed on the top sealing plug of the volumetric flask to promote the squeezing effect of the pressure block on the top sealing plug of the volumetric flask, thereby preventing the volumetric flask from being unplugged during the rotation process, preventing the leakage of the mixed liquid, and ensuring the accuracy of the subsequent phosphorus content detection. At the same time, the downward squeezing movement of the connecting block is used to synchronously drive the connecting plate and the locking assembly to move, and then the position of the clamping plate is locked under the limit guidance of the guide hole and the locking rod, and then the volumetric flask is wrapped and clamped in a limit-type manner with the limit bottle, so as to further improve the fixation of the volumetric flask and reduce the collision of the volumetric flask during the rotation process. The operation steps of this fixing method are simple and the use efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the synchronous rotation assembly of the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping assembly distribution of the present invention;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the connection block of the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the locking assembly distribution of the present invention;

[0026] Figure 6 It is a schematic diagram of the top view of the clamping assembly distribution structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the special-shaped plate distribution of the present invention.

[0028] Explanation of the reference numerals in the figure: 1. bracket assembly; 101. base; 102. support rod; 103. fixed disc; 2. motor; 3. L-shaped rotating frame; 4. rotating disc; 5. limit bottle; 6. pressure block; 7. adjustment and pressing assembly; 701. connecting block; 702. rotating sleeve; 703. fixed block; 704. screw; 8. synchronous rotation assembly; 801. outer gear ring; 802. pinion; 803. rotating shaft; 804. bevel gear; 805. inner bevel gear ring; 9. fixed guide sleeve one; 10. fixed guide sleeve two; 11. clamping assembly; 1101. clamping plate; 1102. torsion spring; 1103. clamping block; 12. connecting plate; 13. locking assembly; 1301. special-shaped plate; 1302. guide hole; 1303. locking rod; 14. protective pad. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0030] Embodiment 1

[0031] In order to solve the problem that the existing shaking device for detecting the phosphorus content in silicon-aluminum alloy is not easy to mix the mixed solution at multiple angles and is not easy to lock the top of the volumetric flask, the following scheme is disclosed, specifically as follows Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown:

[0032] A device for shaking a mixed solution for detecting phosphorus content in a silicon-aluminum alloy comprises a support assembly 1, wherein the support assembly 1 comprises a base 101, and two parallel supporting rods 102 are fixedly installed on one side of the top of the base 101, and the tops of the supporting rods 102 are commonly connected to a fixed disc 103;

[0033] A motor 2 is fixedly installed on one side of the fixed disc 103, and the output end of the motor 2 passes through the center of the fixed disc 103 and is connected to an L-shaped rotating frame 3. A rotating disc 4 passes through the bottom end of the L-shaped rotating frame 3, and the rotating disc 4 and the L-shaped rotating frame 3 are rotatably connected. A limiting bottle 5 is fixed to one side of the top center of the rotating disc 4, and a protective pad 14 is fixed to the top of the rotating disc 4 on one side of the limiting bottle 5. The inner cavity structure size of the limiting bottle 5 is half the size of a volumetric bottle, and an adjusting press is provided on the side of the top of the limiting bottle 5 close to the fixed disc 103. The pressing assembly 7 is provided, and a pressing block 6 is connected to one side of the adjusting pressing assembly 7. The pressing assembly 7 is adjusted to drive the pressing block 6 to press downward, so that the pressing block 6 generates a downward squeezing force on the top sealing plug of the volumetric flask to prevent the sealing plug from falling off during the flipping process of the volumetric flask. The bottom end of the pressing block 6 penetrates into the interior of the limiting bottle 5. The bottom end of the rotating disk 4 is provided with a synchronous rotating assembly 8. The synchronous rotating assembly 8 is used to make the limiting bottle 5 rotate synchronously when rotating along the axis of the fixed disk 103, thereby improving the shaking effect of the mixed liquid inside the volumetric flask in the limiting bottle 5;

[0034] The adjusting and pressing assembly 7 includes a fixing block 703 fixed to the top of the outer side of the limiting bottle 5, and a screw 704 is fixed to the top of the fixing block 703, a rotating sleeve 702 is sleeved on the outside of the screw 704, and a connecting block 701 is sleeved on the outside of the rotating sleeve 702, and one side of the connecting block 701 is connected to the top of one side of the pressing block 6;

[0035] The rotating sleeve 702 and the screw rod 704 are threadedly connected, and the rotating sleeve 702 and the connecting block 701 are rotationally connected;

[0036] The synchronous rotation component 8 includes an outer gear ring 801 installed on the periphery of the bottom end of the rotating disk 4, and a pinion 802 is meshed on one side of the outer gear ring 801, the connecting shaft of the pinion 802 is connected to the bottom end of the L-shaped rotating frame 3, a rotating shaft 803 is fixed to the center of the bottom end surface of the pinion 802, and a bevel gear 804 is connected to the bottom end of the rotating shaft 803, an inner bevel gear ring 805 is fixed to the outer edge of one side of the fixed disk 103 close to the L-shaped rotating frame 3, and the inner side of the inner bevel gear ring 805 is meshed with the outer side of the bevel gear 804.

[0037] In this embodiment, when in use, the volumetric bottle is horizontally placed inside the limiting bottle 5, so that the bottom end of the volumetric bottle and the top end of the protective pad 14 are butted against each other, and the connecting block 701 drives the pressing block 6 to move downward along the screw 704 by screwing the rotating sleeve 702 downward until the bottom end of the pressing block 6 and the top sealing plug of the volumetric bottle are butted against each other, thereby achieving the fixation of the volumetric bottle. The special structure of the limiting bottle 5 is utilized to increase the chimeric contact area between the limiting bottle and the volumetric bottle, thereby improving the limiting and fixing effect of the volumetric bottle.

[0038] Start the motor 2 so that the output shaft of the motor 2 drives the L-shaped rotating frame 3 to rotate, thereby turning the volumetric bottle in the limit bottle 5 upside down to promote the stirring of the mixed liquid in the volumetric bottle. Since the L-shaped rotating frame 3 rotates with the center of the fixed disk 103 as the axis, the bevel gear 804 is always engaged with the inner bevel gear ring 805 during the rotation process, and then drives the rotating shaft 803 to rotate, so that the pinion 802 drives the outer gear ring 801 to rotate, so that the limit bottle 5 rotates during the up and down rotation process, so that the rotation direction of the mixed liquid inside the volumetric bottle is more diverse, so as to promote the stirring and mixing effect of the mixed liquid, thereby facilitating the subsequent color development after standing.

[0039] Embodiment 2

[0040] This embodiment is different from the first embodiment. Through the cooperation of the locking assembly 13 and the clamping assembly 11, the device can lock the sealing plug at the top of the volumetric flask and simultaneously realize the synchronous embracing and clamping of the volumetric flask, and the embracing and clamping are locked synchronously. The operation is simple and convenient, and the collision damage of the volumetric flask during rotation is prevented. Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown:

[0041] A fixed guide sleeve 1 9 is installed on one side of the limit bottle 5 below the fixed block 703, and a fixed guide sleeve 2 10 is installed on one side of the limit bottle 5 below the fixed guide sleeve 1 9, a connecting plate 12 runs through the fixed guide sleeve 1 9 and the fixed guide sleeve 2 10, and the top of the connecting plate 12 is fixedly connected to the outer side of the connecting block 701, and two groups of clamping components 11 distributed up and down are arranged on the outer side of the limit bottle 5, and a locking component 13 is connected between one side of the clamping component 11 and one side of the connecting plate 12;

[0042] Each group of clamping components 11 is provided with two, and the two clamping components 11 are symmetrically distributed about the central axis of the limiting bottle 5. The clamping components 11 are used to embrace the opening of the limiting bottle 5 to cooperate with the limiting bottle 5 to embrace and clamp the periphery of the volumetric bottle;

[0043] The clamping assembly 11 includes a clamping plate 1101 rotatably connected to one side of the limiting bottle 5, and a clamping block 1103 is fixed to one side of the clamping plate 1101 close to the opening of the limiting bottle 5, and a torsion spring 1102 is connected between the other side of the torsion spring 1102 and the outer wall of the limiting bottle 5, and the torsion spring 1102 is used to ensure that the inner side of the clamping block 1103 is always pressed toward the opening of the limiting bottle 5;

[0044] The locking assembly 13 includes a special-shaped plate 1301 installed on the outside of the connecting plate 12, and a guide hole 1302 is opened on one side of the special-shaped plate 1301 close to the clamping assembly 11, a locking rod 1303 is inserted into the guide hole 1302, and one side of the locking rod 1303 is connected to one end of the clamping plate 1101 close to the torsion spring 1102;

[0045] The guide hole 1302 is inclined, and the distance between the guide hole 1302 and the outer wall of the limiting bottle 5 gradually decreases from top to bottom;

[0046] The locking rod 1303 and the guide hole 1302 are movably connected, and the outer side of the locking rod 1303 always abuts against the inner side wall of the guide hole 1302.

[0047] In this embodiment, when in use, due to the downward movement of the connecting block 701, the connecting block 701 synchronously drives the connecting plate 12 to move downward, so that the special-shaped plate 1301 drives the guide hole 1302 to move downward, and since the locking rod 1303 is always inside the guide hole 1302, the locking rod 1303 is rotated from a position close to the outer wall of the limiting bottle 5 to a position away from the outer wall of the limiting bottle 5, thereby driving the clamping end of the clamping plate 1101 to move in the opposite direction, that is, the clamping block 1103 moves closer to the opening of the limiting bottle 5. 3, so that it can embrace and clamp the volumetric bottle in the limiting bottle 5, that is, when the pressing block 6 moves downward, the clamping effect on the volumetric bottle is simultaneously achieved, and because the rotating sleeve 702 and the screw rod 704 are threadedly connected, the position of the special-shaped plate 1301 is locked and fixed, and then the clamping plate 1101 is locked in the clamped position, so that the clamping plate 1101 will not move during the rotation of the L-shaped rotating frame 3, thereby ensuring the stability of the volumetric bottle in the limiting bottle 5, thereby effectively preventing the volumetric bottle from detaching and promoting the stability of the volumetric bottle when shaking.

[0048] Although 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 appended claims and their equivalents.

Claims

1. A device for shaking a mixed solution for detecting phosphorus content in a silicon-aluminum alloy, comprising a support assembly (1), characterized in that: The support assembly (1) comprises a base (101), and two parallel supporting rods (102) are fixedly mounted on one side of the top of the base (101), and the tops of the supporting rods (102) are commonly connected to a fixed disc (103); A motor (2) is fixedly mounted on one side of the fixed disc (103), and the output end of the motor (2) passes through the center of the fixed disc (103) and is connected to an L-shaped rotating frame (3). A rotating disc (4) passes through the bottom end of the L-shaped rotating frame (3), and the rotating disc (4) and the L-shaped rotating frame (3) are rotatably connected. A limiting bottle (5) is fixed to one side of the center of the top end of the rotating disc (4), and a protective pad (14) is fixed to the top end of the rotating disc (4) on one side of the limiting bottle (5). The inner cavity structure size of the limiting bottle (5) is half the size of a volumetric bottle, and an adjusting pad is provided on the side of the top end of the limiting bottle (5) close to the fixed disc (103). A pressing component (7) is provided, and a pressing block (6) is connected to one side of the adjusting pressing component (7). The adjusting pressing component (7) drives the pressing block (6) to press downward, so that the pressing block (6) generates a downward pressing force on the top sealing plug of the volumetric flask to prevent the sealing plug from falling off during the turning process of the volumetric flask. The bottom end of the pressing block (6) penetrates into the interior of the limiting bottle (5). A synchronous rotating component (8) is provided at the bottom end of the rotating disk (4). The synchronous rotating component (8) is used to make the limiting bottle (5) rotate synchronously when rotating along the axis of the fixed disk (103), thereby improving the shaking effect of the mixed liquid inside the volumetric flask in the limiting bottle (5); The adjusting and pressing assembly (7) comprises a fixing block (703) fixed to the top of the outer side of the limiting bottle (5), a screw rod (704) being fixed to the top of the fixing block (703), a rotating sleeve (702) being sleeved on the outer side of the screw rod (704), and a connecting block (701) being sleeved on the outer side of the rotating sleeve (702), and one side of the connecting block (701) is connected to the top of one side of the pressing block (6); A fixed guide sleeve 1 (9) is installed on one side of the limiting bottle (5) below the fixed block (703), and a fixed guide sleeve 2 (10) is installed on one side of the limiting bottle (5) below the fixed guide sleeve 1 (9), a connecting plate (12) passes through the fixed guide sleeve 1 (9) and the fixed guide sleeve 2 (10), and the top of the connecting plate (12) is fixedly connected to the outer side of the connecting block (701), and two groups of clamping components (11) distributed up and down are arranged on the outer side of the limiting bottle (5), and a locking component (13) is connected between one side of the clamping component (11) and one side of the connecting plate (12); Each group of clamping assemblies (11) is provided with two, and the two clamping assemblies (11) are symmetrically distributed about the central axis of the limiting bottle (5), and the clamping assemblies (11) are used to embrace the opening of the limiting bottle (5) to cooperate with the limiting bottle (5) to embrace and clamp the periphery of the volumetric flask; The clamping assembly (11) comprises a clamping plate (1101) rotatably connected to one side of the limiting bottle (5), and a clamping block (1103) is fixed to one side of the clamping plate (1101) close to the opening of the limiting bottle (5), and a torsion spring (1102) is connected between the other side of the torsion spring (1102) and the outer wall of the limiting bottle (5), and the torsion spring (1102) is used to ensure that the inner side of the clamping block (1103) is always pressed toward the opening of the limiting bottle (5); The locking assembly (13) comprises a special-shaped plate (1301) mounted on the outside of the connecting plate (12), and a guide hole (1302) is provided on a side of the special-shaped plate (1301) close to the clamping assembly (11), a locking rod (1303) is inserted into the guide hole (1302), and one side of the locking rod (1303) is connected to an end of the clamping plate (1101) close to the torsion spring (1102); The guide hole (1302) is inclined, and the distance between the guide hole (1302) and the outer wall of the limiting bottle (5) gradually decreases from top to bottom; The locking rod (1303) and the guide hole (1302) are movably connected, and the outer side of the locking rod (1303) always abuts against the inner side wall of the guide hole (1302).

2. The shaking device for detecting the phosphorus content in silicon-aluminum alloy according to claim 1 is characterized in that: The rotating sleeve (702) and the screw rod (704) are threadedly connected, and the rotating sleeve (702) and the connecting block (701) are rotationally connected.

3. The shaking device for detecting the phosphorus content in silicon-aluminum alloy according to claim 1 is characterized in that: The synchronous rotation assembly (8) comprises an outer toothed ring (801) mounted on the periphery of the bottom end of the rotating disk (4), and a pinion gear (802) is meshed on one side of the outer toothed ring (801), a connecting shaft of the pinion gear (802) is connected to the bottom end of the L-shaped rotating frame (3), a rotating shaft (803) is fixed at the center of the bottom end surface of the pinion gear (802), and a bevel gear (804) is connected to the bottom end of the rotating shaft (803), and an inner bevel toothed ring (805) is fixed on the outer edge of one side of the fixed disk (103) close to the L-shaped rotating frame (3), and the inner side of the inner bevel toothed ring (805) is meshed with the outer side of the bevel gear (804).

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