A turntable device with good dustproof performance

Abstract

The utility model discloses a turntable device that good dustproof performance relates to turntable device technical field, the utility model discloses a device body, its top is equipped with the rotating platform through the pivot rotation, is equipped with the drive mechanism for driving pivot rotation in the device body, is chiseled with at least a group first heat dissipation opening and second heat dissipation opening on the lateral wall of device body, is fixedly installed with first filter screen on second heat dissipation opening, is equipped with the U type groove of first heat dissipation opening and second heat dissipation opening intercommunication on the device body, is fixedly installed with exhaust fan at first heat dissipation opening, the protective cover, it is set and can be detachably installed on the rotating platform, the protective cover is set and rotates and is arranged on the device body, is equipped with the cleaning assembly for cleaning first filter screen on the protective cover. The utility model discloses through the cooperation combination blocking of multiple groups of structures external dust to enter the device body inside, effectively protects drive mechanism and pivot etc. core components, prolongs the service life of whole device.

Description

Technical Field

[0001] This utility model belongs to the field of turntable devices, specifically, it relates to a turntable device with good dustproof performance. Background Technology

[0002] Turntables, as the core actuators for achieving rotary motion, are widely used in various fields such as industrial manufacturing, automated conveying, testing, and medical equipment. Their performance directly determines the operating efficiency and precision stability of downstream equipment. In industrial processing scenarios (such as CNC machine tool turntables and welding robot turntables), the turntable needs to drive the workpiece to complete multi-faceted processing or workstation switching. However, traditional turntables can mostly only perform simple rotational operations, making the operation method relatively simple. When there are special operation requirements or workpieces of different sizes, they cannot be adjusted in a variety of ways according to the actual processing needs, which brings inconvenience to the operators.

[0003] Chinese patent publication number CN221135836U discloses a turntable transmission device. This device, through the cooperation of a servo motor, reduction gear, gear, first base, annular slider, first cover, second cover, electric push rod, base plate, and second base, allows operators to more conveniently adjust the turntable angle. Furthermore, the height of the turntable can be freely adjusted during angle adjustment to meet various operational needs. However, when used in dusty workshops, external dust can easily enter the device through the opening of the first cover opposite the threaded rod or other heat dissipation vents. After prolonged use, external dust accumulates inside the first and second covers, affecting internal equipment such as motors and reducing the device's lifespan.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a turntable device with good dustproof performance, thus solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A dustproof turntable device includes: a device body with a rotating platform rotatably mounted on its top via a rotating shaft; a drive mechanism for driving the rotating shaft to rotate is provided inside the device body; at least one set of first heat dissipation vents and second heat dissipation vents are carved into the side wall of the device body; a first filter screen is fixedly installed on the second heat dissipation vent; a U-shaped groove is provided on the device body to connect the first heat dissipation vents and the second heat dissipation vents; the U-shaped groove is located at the bottom of the first heat dissipation vents and the second heat dissipation vents; and an exhaust fan is fixedly installed at the first heat dissipation vent.

[0008] A protective cover is fitted and detachably mounted on the rotating platform. The protective cover is fitted and rotatably mounted on the device body. The protective cover is provided with a cleaning component for cleaning the first filter screen.

[0009] Optionally, the cleaning component includes:

[0010] The mounting plate is slidably and detachably mounted on the protective cover. A positioning screw is movably provided through the first end of the mounting plate, and a positioning screw hole is drilled on the protective cover opposite to the positioning screw.

[0011] A cleaning brush is fixedly installed at the second end of the mounting plate, and the bristles of the cleaning brush are in contact with the first filter screen.

[0012] Optionally, a spring is fitted onto the positioning screw to abut against the mounting plate.

[0013] Optionally, the edge of the rotating platform is chiseled with a snap-fit ​​groove along its circumference for receiving the protective cover.

[0014] Optionally, the device body is provided with a ash discharge trough communicating with the U-shaped groove, and the ash discharge trough is inclined in a direction away from the U-shaped groove.

[0015] Optionally, two sets of guide slides are fixedly installed on the main body of the device along the ash discharge trough, and a second filter screen for shielding the ash discharge trough is slidably provided between the two sets of guide slides. A lever is fixedly installed on the second filter screen.

[0016] Optionally, the rotating platform has a through hole through its axis, the rotating shaft is movably disposed in the through hole, a support plate for supporting the rotating platform is sleeved and fixedly installed on the rotating shaft, a fixing screw is fixedly installed at the end of the rotating shaft away from the drive mechanism, a fixing nut is threaded onto the fixing screw, and a cover plate is detachably provided on the top of the through hole.

[0017] Optionally, a ring-shaped rotating ring is fixedly installed at the bottom of the rotating platform, a rotating groove is embedded in the device body, the rotating ring is rotatably disposed in the rotating groove, and multiple fixing plates are fixedly installed on the device body along its circumference.

[0018] Optionally, the device body has an inspection port, and the inspection port is detachably equipped with an inspection door. The inspection port has a connecting groove that connects with the inspection door.

[0019] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0020] 1. By setting up cleaning components, protective covers, and U-shaped grooves, the combination of multiple structures prevents external dust from entering the device body. At the same time, the protective cover prevents dust from entering the rotation gap between the rotating platform and the device body, effectively protecting the core components such as the drive mechanism and rotating shaft, and extending the service life of the overall device.

[0021] 2. By setting up a snap-fit ​​groove, ash discharge groove, second filter screen, and guide slide, the snap-fit ​​groove supports the protective cover, making the protective cover fit more tightly with the rotating platform. The dust deposited in the U-shaped groove will automatically slide out of the device body due to gravity along the inclined ash discharge groove, avoiding the dust from accumulating in the U-shaped groove and re-entering the device body with the airflow. The inclined design ensures that the dust is discharged in a designated direction, which is convenient for centralized collection.

[0022] 3. By setting up a rotating ring and a rotating groove, the rotating ring and rotating groove cooperate to provide radial support for the rotating platform, reduce the radial force on the rotating shaft, avoid deformation of the rotating shaft due to long-term stress, and ensure the coaxiality of the rotating platform when it rotates.

[0023] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0024] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a front view of the present invention;

[0027] Figure 3 This is an exploded view of the present invention;

[0028] Figure 4 This is a schematic diagram of the through hole structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the cleaning component of this utility model;

[0030] Figure 6 This is a schematic diagram of the structure of the exhaust fan of this utility model;

[0031] Figure 7 This utility model Figure 6 A structural diagram from another perspective;

[0032] Figure 8 This utility model Figure 7 Enlarged structural diagram at point A;

[0033] Figure 9 This is a schematic diagram of the structure of the first heat dissipation port of this utility model;

[0034] Figure 10 This is a schematic diagram of the structure of the second heat dissipation port and the U-shaped groove of this utility model.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 1. Device body; 2. Protective cover; 3. Rotating platform; 4. Cover plate; 5. First filter screen; 6. Second filter screen; 7. Cleaning assembly; 71. Cleaning brush; 72. Mounting plate; 73. Positioning screw; 8. Guide slide plate; 9. Fixing plate; 10. Inspection door; 11. Inspection port; 12. Snap-fit ​​groove; 13. Fixing nut; 14. Through hole; 15. Support plate; 16. Rotating shaft; 17. Fixing screw; 18. Rotating groove; 19. Connecting groove; 20. Rotating ring; 21. Drive mechanism; 22. Exhaust fan; 23. Ash discharge chute; 24. Paddle plate; 25. Spring; 26. First heat dissipation vent; 27. Second heat dissipation vent; 28. U-shaped groove; 29. ​​Positioning screw hole.

[0037] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings.

[0039] Example 1

[0040] Please see Figure 1-10As shown, this embodiment provides a turntable device with good dustproof performance, including a device body 1, a rotating platform 3 rotatably mounted on the top of the device body 1 via a rotating shaft 16, a drive mechanism 21 for driving the rotating shaft 16 to rotate inside the device body 1, at least one set of first heat dissipation vents 26 and second heat dissipation vents 27 are carved on the side wall of the device body 1, a first filter screen 5 is fixedly installed on the second heat dissipation vent 27, a U-shaped groove 28 is provided on the device body 1 to connect the first heat dissipation vents 26 and the second heat dissipation vents 27, the U-shaped groove 28 is located at the bottom of the first heat dissipation vents 26 and the second heat dissipation vents 27, an exhaust fan 22 is fixedly installed at the first heat dissipation vent 26, a protective cover 2 is sleeved and detachably mounted on the rotating platform 3, the protective cover 2 is sleeved and rotatably mounted on the device body 1, and a cleaning component 7 for cleaning the first filter screen 5 is provided on the protective cover 2.

[0041] Specifically, the drive mechanism 21 (such as a servo motor) inside the device body 1 is controlled by an external control device to drive the rotating shaft 16 to rotate. The rotating shaft 16 then drives the rotating platform 3 at the top to rotate, meeting the requirements for workpiece bearing and rotation. The first heat dissipation port 26 and the second heat dissipation port 27 are connected through the U-shaped groove 28 at the bottom. If a small amount of dust that is not blocked by the first filter screen 5 enters the U-shaped groove 28 with the airflow, it will be deposited in the U-shaped groove 28 due to gravity, preventing it from directly entering the core area of ​​the device body 1. At the same time, when the drive mechanism 21 generates heat, the exhaust fan 22 at the first heat dissipation port 26 is started by the external controller to draw out the hot air inside the device body 1. The hot air is discharged through the first heat dissipation port 26 to the U-shaped groove 28 and then discharged from the second heat dissipation port 27. The blown airflow can further prevent external dust from entering the interior of the device body 1 along the first filter screen 5. In addition, the protective cover 2 is fitted with The rotating platform 3 and the device body 1 (with a small gap between the protective cover 2 and the outer wall of the device body 1) isolate environmental dust from the outside, preventing dust from falling into the gap between the rotating platform 3 and the device body 1, without affecting the rotation of the rotating platform 3. At the same time, the cleaning component 7 on the protective cover 2 can clean the first filter 5 in a targeted manner, avoiding filter blockage that affects heat dissipation efficiency. It can also clean the dust on the first filter 5, further achieving a dustproof effect. The overall structure and operation steps are simple. The combination of the exhaust fan 22, the first filter 5, the first heat dissipation port 26, the second heat dissipation port 27 and the U-shaped groove 28 can block external dust from entering the device body 1. At the same time, the setting of the protective cover 2 prevents dust from entering the rotation gap between the rotating platform 3 and the device body 1, effectively protecting the core components such as the drive mechanism 21 and the rotating shaft 16, and extending the service life of the overall device.

[0042] It should be noted that in this embodiment, the first heat dissipation port 26 and the second heat dissipation port 27 are arranged opposite to each other. At the same time, a temperature sensor can be installed inside the device body 1 to monitor its internal temperature. The temperature sensor is connected to the exhaust fan 22 and the external controller signal, so that the exhaust fan 22 is automatically started to perform heat dissipation when the internal temperature of the device body 1 rises to a specified temperature. The wiring connection method and working principle of the above components are all existing technologies. Secondly, in this embodiment, the number of the first heat dissipation port 26, the second heat dissipation port 27, and the U-shaped groove 28 is one set. There is no limitation in other embodiments, and the specific selection can be made according to the actual situation. Furthermore, this device can be applied to industrial processing, automated production lines, and other places. For example, in industrial processing scenarios (such as CNC machine tool turntables and welding robot turntables), the turntable needs to drive the workpiece to complete multi-face processing or workstation switching. Secondly, a clamping mechanism or other structure for positioning the workpiece can be installed on the rotating platform, which is existing technology.

[0043] In this embodiment, as Figures 1 to 8 As shown, the cleaning component 7 includes a mounting plate 72, which is slidably and detachably mounted on the protective cover 2. A positioning screw 73 is movably mounted through the first end of the mounting plate 72. A positioning screw hole 29 is drilled on the protective cover 2 opposite to the positioning screw 73. A cleaning brush 71 is fixedly mounted on the second end of the mounting plate 72. The bristles of the cleaning brush 71 are in contact with the first filter screen 5. Specifically, in this embodiment, the mounting plate 72 has an L-shaped structure, and the cleaning brush 71 is detachably connected to the mounting plate 72 for easy replacement. After the first end is connected to the positioning screw hole 29 on the protective cover 2, tightening the positioning screw 73 will fix the position of the mounting plate 72. After installation, the bristles of the cleaning brush 71 will be in contact with the surface of the first filter screen 5. When the protective cover 2 rotates with the rotating platform 3, the cleaning brush 71 will move synchronously with the protective cover 2, and the bristles will rub against the surface of the first filter screen 5 to sweep off the dust attached to the filter screen. The rotation of the protective cover 2 will drive the cleaning brush 71, and the first filter screen 5 can be continuously cleaned without additional power, avoiding the decrease in heat dissipation efficiency caused by dust clogging of the filter screen.

[0044] In this embodiment, as Figure 8As shown, a spring 25 is fitted on the positioning screw 73 to abut against the mounting plate 72. Specifically, when the positioning screw 73 is screwed into the positioning screw hole 29, the spring 25 is compressed and generates continuous elastic pressure on the mounting plate 72. If the first filter screen 5 is slightly deformed due to long-term use, or the bristles of the cleaning brush 71 are worn, the elastic pressure of the spring 25 can push the mounting plate 72 to move slightly, ensuring that the cleaning brush 71 is always in contact with the surface of the filter screen, avoiding cleaning dead corners due to gaps. At the same time, when the protective cover 2 rotates and drives the cleaning brush 71 to clean, the spring 25 can buffer the instantaneous impact force between the cleaning brush 71 and the filter screen, preventing the bristles from being damaged by hard friction, and preventing the filter screen from being scratched, thus extending the service life of both and reducing the replacement frequency.

[0045] Example 2

[0046] In this embodiment, as Figures 1 to 5 As shown, the edge of the rotating platform 3 is chiseled with a snap-fit ​​groove 12 along its circumference for supporting the protective cover 2. Specifically, the snap-fit ​​groove 12 supports the protective cover 2, making the protective cover 2 fit more tightly with the rotating platform 3. Of course, a sealing gasket can be installed on the snap-fit ​​groove 12 to improve the tightness of the connection between the two. Finally, the protective cover 2 is fixed to the rotating platform 3 with screws, thereby reducing the gap between the rotating platform 3 and the protective cover 2, further blocking the intrusion of external dust, and supplementing the dustproof effect of the protective cover 2.

[0047] In this embodiment, as Figures 1 to 10 As shown, the device body 1 is provided with a dust discharge trough 23 communicating with the U-shaped groove 28. The dust discharge trough 23 is inclined away from the U-shaped groove 28. Two sets of guide slide plates 8 are fixedly installed on the device body 1 along the dust discharge trough 23. A second filter screen 6 for shielding the dust discharge trough 23 is slidably arranged between the two sets of guide slide plates 8. A baffle plate 24 is fixedly installed on the second filter screen 6. Specifically, the dust deposited in the U-shaped groove 28 will automatically slide out of the device body 1 along the inclined dust discharge trough 23 due to gravity. To prevent dust from accumulating in the U-shaped trough 28 and re-entering the device body 1 with the airflow, the inclined design ensures that the dust is discharged in a designated direction, facilitating centralized collection (such as placing a dust collection box at the outlet of the ash discharge trough 23), reducing secondary dust pollution, protecting the operating environment of the drive mechanism 21 and the rotating shaft 16, and extending the equipment life. The second filter screen 6 is driven to move along the two sets of guide slide plates 8 by the toggle plate 24, so as to facilitate the discharge of dust in the ash discharge trough 23. At the same time, the ash discharge trough 23 is covered when ash discharge is no longer needed.

[0048] Example 3

[0049] In this embodiment, as Figures 1 to 6As shown, a through hole 14 is provided through the axis of the rotating platform 3. The rotating shaft 16 is movably disposed in the through hole 14. A support plate 15 for supporting the rotating platform 3 is sleeved and fixedly installed on the rotating shaft 16. A fixing screw 17 is fixedly installed at the end of the rotating shaft 16 away from the drive mechanism 21. A fixing nut 13 is threadedly connected to the fixing screw 17. A cover plate 4 is detachably provided on the top of the through hole 14. Specifically, in this embodiment, the through hole 14 has a stepped structure. That is, after the through hole 14 on the rotating platform 3 is sleeved on the rotating shaft 16, the positioning screw 73 enters into the through hole 14. The bottom of the rotating platform 3 and the support plate 15, as well as the rotating shaft 16 and the positioning screw 73 are connected. The joints are fitted together, and then the positioning nut is threaded onto the positioning screw 73, so that the positioning nut presses against the rotating platform 3, thereby fixing the rotating platform 3 onto the rotating shaft 16. Of course, in this embodiment, the bottom of the rotating platform 3 has anti-slip texture on the contact surface with the support plate 15. Similarly, the contact surface between the rotating platform 3 and the positioning nut is also provided with anti-slip texture. After the rotating platform 3 is installed, the end of the positioning screw 73 away from the rotating shaft 16 is located inside the through hole 14. At this time, the cover plate 4 can be snapped into the opening of the through hole 14. The overall structure has strong installation stability, facilitates the disassembly and assembly of the rotating platform 3, and improves the sealing between the rotating platform 3 and the rotating shaft 16.

[0050] In this embodiment, as Figures 1 to 6 As shown, a ring-shaped rotating ring 20 is fixedly installed at the bottom of the rotating platform 3. A rotating groove 18 is embedded in the device body 1. The rotating ring 20 is rotatably disposed in the rotating groove 18. Multiple fixing plates 9 are fixedly installed along the circumference of the device body 1. Specifically, the fixing plates 9 facilitate the fixed installation of the device body 1 in a designated position. Through the cooperation between the rotating ring 20 and the rotating groove 18, radial support is provided for the rotating platform 3, reducing the radial force on the rotating shaft 16 and preventing the rotating shaft 16 from deforming due to long-term stress. At the same time, the coaxiality of the rotating platform 3 is ensured when it rotates.

[0051] In this embodiment, as Figures 1 to 3 As shown, an inspection port 11 is cut into the main body of the device 1. An inspection door 10 is detachably installed at the inspection port 11. A connecting groove 19 is cut into the inspection port 11 to connect with the inspection door 10. Specifically, when it is necessary to inspect the core components such as the drive mechanism 21 and the rotating shaft 16 inside the main body of the device 1, the inspection door 10 can be removed and the device can be operated directly through the inspection port 11 without disassembling the entire main body of the device 1. The connection between the inspection door 10 and the connecting groove 19 can reduce the infiltration of external dust into the interior of the main body of the device 1 from the inspection port 11. At the same time, the connecting groove 19 can position the inspection door 10 to ensure the sealing during installation.

[0052] Working principle:

[0053] The drive mechanism 21 (such as a servo motor) inside the main body 1 is controlled by an external control device to drive the rotating shaft 16 to rotate. The rotating shaft 16 then drives the rotating platform 3 at the top to rotate, meeting the requirements for workpiece bearing and rotation. The first heat dissipation port 26 and the second heat dissipation port 27 are connected through the U-shaped groove 28 at the bottom. If a small amount of dust that is not blocked by the first filter screen 5 enters the U-shaped groove 28 with the airflow, it will be deposited in the U-shaped groove 28 due to gravity, preventing it from directly entering the core area of ​​the main body 1. At the same time, when the drive mechanism 21 generates heat, the exhaust fan 22 at the first heat dissipation port 26 is started by the external controller to draw out the hot air inside the main body 1. The hot air is discharged through the first heat dissipation port 26 to the U-shaped groove 28 and then discharged from the second heat dissipation port 27. The blown airflow can further prevent external dust from entering the interior of the main body 1 along the first filter screen 5. In addition, a protective cover 2 is fitted on the rotating platform 3 and the main body 1 (protective cover 2). The protective cover 2 has a small gap with the outer wall of the device body 1, which isolates environmental dust from the outside and prevents dust from falling into the gap between the rotating platform 3 and the device body 1. At the same time, it does not affect the rotation of the rotating platform 3. When the protective cover 2 rotates with the rotating platform 3, the cleaning brush 71 moves synchronously with the protective cover 2. The brush bristles rub against the surface of the first filter screen 5 to sweep off the dust attached to the filter screen, avoiding filter screen blockage and affecting heat dissipation efficiency. At the same time, it can also clean the dust on the first filter screen 5, further playing a dustproof role. The overall structure and operation steps are simple. It can block external dust from entering the device body 1 through the combination of exhaust fan 22, first filter screen 5, first heat dissipation port 26, second heat dissipation port 27 and U-shaped groove 28. At the same time, the setting of the protective cover 2 prevents dust from entering the rotation gap between the rotating platform 3 and the device body 1, effectively protecting the core components such as drive mechanism 21 and rotating shaft 16, and extending the service life of the overall device.

[0054] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A turntable device with good dustproof performance, characterized in that, include: The device body (1) has a rotating platform (3) on its top via a rotating shaft (16). The device body (1) is equipped with a drive mechanism (21) for driving the rotating shaft (16) to rotate. At least one set of first heat dissipation vents (26) and second heat dissipation vents (27) are cut into the side wall of the device body (1). A first filter screen (5) is fixedly installed on the second heat dissipation vent (27). The device body (1) is equipped with a U-shaped groove (28) that connects the first heat dissipation vent (26) and the second heat dissipation vent (27). The U-shaped groove (28) is located at the bottom of the first heat dissipation vent (26) and the second heat dissipation vent (27). An exhaust fan (22) is fixedly installed at the first heat dissipation vent (26). A protective cover (2) is fitted and detachably mounted on the rotating platform (3). The protective cover (2) is fitted and rotatably mounted on the device body (1). The protective cover (2) is provided with a cleaning component (7) for cleaning the first filter screen (5).

2. The turntable device with good dustproof performance according to claim 1, characterized in that, The cleaning component (7) includes: Mounting plate (72) is slidably and detachably mounted on the protective cover (2). The first end of the mounting plate (72) is provided with a positioning screw (73) that passes through and is movably provided. The protective cover (2) has a positioning screw hole (29) drilled on it relative to the positioning screw (73). A cleaning brush (71) is fixedly installed at the second end of the mounting plate (72), and the bristles of the cleaning brush (71) are in contact with the first filter screen (5).

3. The turntable device with good dustproof performance according to claim 2, characterized in that, A spring (25) is fitted on the positioning screw (73) to abut against the mounting plate (72).

4. The turntable device with good dustproof performance according to claim 2, characterized in that, The rotating platform (3) has a snap-fit ​​groove (12) along its perimeter for receiving the protective cover (2).

5. A turntable device with good dustproof performance according to claim 1, characterized in that, The device body (1) is provided with a ash discharge trough (23) that communicates with the U-shaped groove (28), and the ash discharge trough (23) is inclined in a direction away from the U-shaped groove (28).

6. A turntable device with good dustproof performance according to claim 5, characterized in that, Two sets of guide slide plates (8) are fixedly installed on the main body (1) of the device along the ash discharge groove (23). A second filter screen (6) for shielding the ash discharge groove (23) is slidably provided between the two sets of guide slide plates (8). A lever plate (24) is fixedly installed on the second filter screen (6).

7. A turntable device with good dustproof performance according to claim 1, characterized in that, The rotating platform (3) has a through hole (14) through its axis. The rotating shaft (16) is movably disposed in the through hole (14). A support plate (15) for supporting the rotating platform (3) is sleeved and fixedly installed on the rotating shaft (16). A fixing screw (17) is fixedly installed on the end of the rotating shaft (16) away from the driving mechanism (21). A fixing nut (13) is threaded onto the fixing screw (17). A cover plate (4) is detachably provided on the top of the through hole (14).

8. A turntable device with good dustproof performance according to claim 7, characterized in that, The rotating platform (3) has a ring-shaped rotating ring (20) fixedly installed at the bottom. The device body (1) has a rotating groove (18) embedded in it. The rotating ring (20) is rotatably disposed in the rotating groove (18). The device body (1) has multiple fixed plates (9) fixedly installed along its circumference.

9. A turntable device with good dustproof performance according to claim 7, characterized in that, The device body (1) has an inspection port (11) cut out, and an inspection door (10) is detachably provided at the inspection port (11). A connecting groove (19) is cut out at the inspection port (11) to connect with the inspection door (10).

Images