Lacquer art coloring auxiliary device

Abstract

The present invention discloses a lacquerware painting auxiliary device, comprising a base, a centering mechanism, a multi-purpose movable frame, a distance measuring module, a control panel, and a display. The base is formed with a crossbeam having an elongated hole formed along its length. The centering mechanism cooperates with the distance measuring module to locate and align the center of the lacquerware. The centering mechanism comprises a center frame, a lower frame, and a tensioning mechanism. The distance measuring module is mounted on the lower portion of the lower frame and includes two distance measuring units, which are arranged transversely symmetrically about the central axis of the center frame and have a distance measuring direction that is obliquely downward and outward. The control panel is electrically connected to the distance measuring units and the display, which is mounted on the base. The multi-purpose movable frame comprises a ring rail, a telescopic rod, and a multi-purpose seat. The multi-purpose seat is mounted on the lower end of the telescopic rod and is used to mount lamps, knives, painting pens, or light and shadow units. This application can reduce the defective rate of lacquerware and improve the output of lacquerware.

Description

Technical Field

[0001] The present application relates to the technical field of lacquer art production, and in particular to a lacquer art coloring auxiliary device. Background Art

[0002] Lacquer crafts encompass the production of lacquer paintings, ceramics, and woodcrafts. For example, the main production process for lacquerware includes: pre-casting, curing, lacquering, grinding, and polishing. After polishing, to further enrich the work, the artist may choose to apply further finishing touches such as painting, platinum coating, and inlaying. This step is collectively referred to as finishing.

[0003] At present, the production of lacquerware mostly relies on manual work. After entering the coloring stage, the following problems arise: the coloring stage can be said to be the last stage of lacquerware production. At this time, if there is an accidental deviation in the coloring or the effect does not meet expectations, defective products will be produced. In addition, because the production of lacquerware is relatively time-consuming, lacquer can easily cause skin allergies and is relatively difficult to produce, which affects the output of lacquer art works. Summary of the Invention

[0004] In order to reduce the defective rate of lacquerware and improve the output of lacquerware, the present application provides a lacquer art coloring auxiliary device.

[0005] This application provides a lacquer art coloring auxiliary device, which adopts the following technical solutions:

[0006] A lacquer painting auxiliary device includes a base, a centering mechanism, a multi-purpose movable frame, a distance measurement module, a control panel, and a display; the base is formed with a crossbeam, and the crossbeam is provided with a long hole along the length direction;

[0007] The centering mechanism is used to cooperate with the distance measuring module to find and align the center of the lacquerware, and the centering mechanism includes a central frame plate, a lower frame body and a tensioning mechanism;

[0008] The center frame is located below the crossbeam, and the tensioning mechanism passes through the long hole and extends downward through the center frame. The tensioning mechanism is used to pull the center frame upward or support the center frame according to the user's operation;

[0009] The end of the lower frame is fixed to the lower part of the central frame plate and passes downward around the lower end of the tensioning mechanism. The lower frame is open on both sides of the long hole.

[0010] The distance measuring module is installed at the lower part of the lower frame and includes two distance measuring units, which are arranged transversely symmetrically with respect to the central axis of the central frame plate, and the distance measuring direction of the distance measuring units is inclined downward and outward; the control board is electrically connected to the distance measuring unit and the display, and the display is installed on the base;

[0011] The multi-purpose movable frame includes a ring rail, a telescopic rod and a multi-purpose seat. The ring rail is connected to the central frame plate and has the same central axis as the central frame plate. One end of the telescopic rod is slidably connected to the ring rail, and the other end extends downward; the multi-purpose seat is installed at the lower end of the telescopic rod and is used to install lamps, knives, paint pens or light and shadow units.

[0012] Optionally, the tensioning mechanism includes a disc 1, a pull rod, and a sleeve. The disc 1 is located below the center frame plate and its radius is larger than the lateral width of the inner cavity of the center frame plate. The pull rod is fixed to the center of the disc 1 and passes through a long hole upward. The diameter of the sleeve is larger than the width of the long hole and falls on the crossbeam. The sleeve is threadedly connected to a section of the pull rod extending out of the long hole; the crossbeam and disc 1 are transparent structures.

[0013] Optionally, it further includes an angle adjustment mechanism for adjusting the tilt angle of the two distance measuring units;

[0014] A module mounting box is mounted on the lower surface of the lower frame. The module mounting box and the disc share a central axis. Mounting holes are provided on two symmetrical side walls of the module mounting box. One end of the distance measuring unit extends into the mounting hole. The distance measuring unit is rotatably connected to the module mounting box by setting a rotating shaft and is vertically rotatable.

[0015] The angle adjustment mechanism includes a pressing component and an elastic recovery component. The pressing component penetrates the module installation box from top to bottom and applies force to the upper structure of the ranging unit. The elastic recovery component is installed in the module installation box and supports the lower structure of the ranging unit. The pressing component is provided with a user operation part.

[0016] Optionally, the downward pressure assembly includes a screw rod 1, a disc 2 and a downward pressure rod, the pull rod is provided with a threaded hole along the central axis, the screw rod 1 is threadedly connected to the threaded hole and the upper end extends out of the pull rod, and the lower end passes through the disc 1; the disc 2 is located below the disc 1, the downward pressure rod is fixed to the lower part of the disc 2 and penetrates downward through the lower frame, enters the module installation box and simultaneously contacts the two ranging units.

[0017] Optionally, the inner cavity of the module mounting box is open at the bottom and the lower opening is covered and connected to the lower cover; the elastic recovery component includes a support block, a guide rod and a spring, the upper part of the support block is an arc surface and simultaneously abuts against two ranging units, one end of the guide rod is fixed to the bottom of the support block, and the other end penetrates the lower cover downward; the spring is sleeved on the guide rod and is located between the support block and the lower cover.

[0018] Optionally, a plurality of centripetal rods extending toward the center are fixed on the inner side of the ring rail, and a slot adapted to fit the end of the centripetal rod is provided on the central frame plate, and the upper portion of the slot and the side away from the center of the central frame plate are open structures.

[0019] Optionally, the telescopic rod includes a second screw rod, a height-adjusting pipe and a fastening nut. The upper end of the second screw rod is slidably connected to the ring rail, the fastening nut is threadedly connected to the second screw rod and abuts against the lower surface of the ring rail, and the height-adjusting pipe is threadedly connected to the lower end of the second screw rod; the multi-purpose seat is movably connected to the height-adjusting pipe.

[0020] Optionally, the multi-purpose seat includes a clamp and a connecting block, the clamp is sleeved on the height-adjusting pipe, and the connecting block is fixed to the outer wall of the clamp and is provided with a mounting hole.

[0021] Optionally, a scale bar is provided on the edge of the central frame plate.

[0022] Optionally, another scale bar is provided around the edge of the disc or the ring track.

[0023] In summary, the present application has at least one of the following beneficial technical effects: a user can place the lacquerware to be painted under the crossbeam, move the center frame plate along the length direction of the long hole, and move the center frame plate along the width direction of the long hole, and observe the distance detection value on the display to determine whether the center frame plate is aligned with the center of the lacquerware; after alignment, the center frame plate can be pulled up using the tensioning mechanism so that it contacts the crossbeam to complete positioning; the device can then be used in at least the following two ways:

[0024] The first method uses the device to assist the user in applying color, such as painting. Specifically, a coloring pen is mounted on a multi-purpose stand, the length of the telescopic rod is adjusted, and the telescopic rod is moved along a circular track. A relatively standard circular pattern of color can be drawn on the surface of the lacquerware. During this process, the user can change the length of the telescopic rod as needed, allowing for relatively stable painting at different heights. The second method uses the device to create a rough block with a proportionally enlarged side wall, and the coloring effect can be observed in advance by using light and shadow. Specifically, a clay rough block is created around the lacquerware. A selected tool is mounted on the multi-purpose stand, and the distance a between the tool and the side wall of the lacquerware in front is determined. The length of the telescopic rod is adjusted without changing the distance a. During the process, the telescopic rod is pulled and rotated along the circular track to carve out a proportionally enlarged rough block. Then, corresponding hollowing is made on the rough block according to the location of the lacquerware to be painted. Afterwards, the user can mount lamps and light and shadow units of various colors on the multi-purpose stand, move them, and illuminate the rough block from the outside inward to observe the surface of the lacquerware and estimate the coloring effect.

[0025] In summary, the device can reduce the probability of producing defective lacquerware and increase the output of lacquerware. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the device;

[0027] Figure 2 It is a schematic diagram of the lower perspective of the device;

[0028] Figure 3 It is a schematic diagram of the circuit structure of the device;

[0029] Figure 4 It is a partial explosion diagram of the device;

[0030] Figure 5 yes Figure 4 A structural diagram from another perspective;

[0031] Figure 6 yes Figure 5 An enlarged schematic diagram of part A in FIG.

[0032] Explanation of the accompanying reference numerals: 1. base; 2. centering mechanism; 21. center frame; 22. lower frame; 23. tensioning mechanism; 231. disc one; 232. pull rod; 233. sleeve; 3. multi-purpose movable frame; 31. ring rail; 311. centripetal rod; 32. telescopic rod; 321. screw rod two; 322. height adjustment pipe; 323. fastening nut; 33. multi-purpose seat; 331. clamp; 332. connecting block; 4. distance measuring module; 41. distance measuring unit; 5. control panel; 6. display; 7. angle adjustment mechanism; 71. screw rod one; 72. disc two; 73. pressure rod; 74. support block; 75. guide rod; 76. spring; 8. module mounting box; 81. lower cover. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-6 This application is described in further detail.

[0034] The embodiment of the present application discloses a lacquer painting auxiliary device.

[0035] Reference Figure 1-3 The lacquer art coloring auxiliary device includes a base 1, a centering mechanism 2, a multi-purpose movable frame 3, a distance measuring module 4, a control panel 5 and a display 6.

[0036] Reference Figure 1 and Figure 2 In one embodiment of the device, the base 1 is gantry-shaped, connected to the centering mechanism 2 by a crossbeam, and supported by two legs at designated locations. To prevent accidental movement during use, which could affect the device's effectiveness, the lower ends of the two legs of the base 1 extend in opposite directions to form tail plates, which are bolted to the designated locations.

[0037] A long hole is opened on the crossbeam of the base 1 along the length direction, and the long hole vertically penetrates the crossbeam.

[0038] Reference Figure 2 and Figure 4The centering mechanism 2 is used to cooperate with the distance measuring module 4 to find and align the center of the lacquerware. The centering mechanism 2 includes a central frame plate 21, a lower frame body 22 and a tensioning mechanism 23.

[0039] The center frame 21 is shaped like a square and is located below the crossbar of the base 1, parallel to the crossbar and extending along the length of the crossbar. A tensioning mechanism 23 passes through the elongated hole and the center frame 21 and is used to pull the center frame 21 upward or support the center frame 21 according to user operation.

[0040] The lower frame 22 is formed by bending a long plate multiple times. One end of the lower frame 22 is fixed to one end of the center frame 21, while the other end passes downward under the tensioning mechanism 23 and is fixed to the other end of the center frame 21. This arrangement leaves the lower frame 22 open on both sides of the elongated hole, primarily to prevent obstruction of lateral movement of the center frame 21 relative to the tensioning mechanism 23, with this lateral movement being perpendicular to the length of the elongated hole.

[0041] Reference Figure 2 and Figure 3 The ranging module 4 is installed at the lower part of the lower frame 22 and includes two ranging units 41. The two ranging units 41 are arranged laterally symmetrically with respect to the central axis of the central frame plate 21. The ranging direction of the ranging unit 41 is inclined downward and outward.

[0042] The control board 5 is integrated into a pre-installed box on the base 1 and is electrically connected to the distance measuring unit 41 and the display 6. The display 6 is mounted on the crossbeam of the base 1 via a support rod. When in use, the control board 5 controls the display 6 to display the distance detection value of the two distance measuring units 41.

[0043] Reference Figure 2 and Figure 4 The multi-purpose movable frame 3 includes a ring rail 31, a telescopic rod 32, and a multi-purpose seat 33. The ring rail 31 is connected to the central frame 21 and is coaxial with the central frame 21. One end of the telescopic rod 32 is slidably connected to the ring rail 31, and the other end extends downward. The multi-purpose seat 33 is mounted at the lower end of the telescopic rod 32 and is used to mount lamps, knives, paint pens, or light and shadow units.

[0044] According to the above arrangement, the user can place the lacquerware to be painted under the crossbeam, move the center frame plate 21 along the length direction of the long hole, and move the center frame plate 21 along the width direction of the long hole, and observe the distance detection value on the display 6 to determine whether the center frame plate 21 is aligned with the center of the lacquerware. Assuming that the lacquerware has a symmetrical structure, if the distance detection values ​​are the same, it is aligned with the center of the lacquerware. At this time, the tensioning mechanism 23 can be used to pull up the center frame plate 21 so that it contacts the crossbeam to complete the positioning. After that, the device can be used in at least the following two ways:

[0045] The first method is to use the device to assist the user in applying color, such as painting. Specifically, the coloring pen is mounted on the multi-purpose holder 33, the length of the telescopic rod 32 is adjusted, and then the telescopic rod 32 is moved along the circular track 31. This allows a relatively standard circular distribution of color to be drawn on the surface of the lacquerware. During the process, the user can change the length of the telescopic rod 32 as needed, allowing for relatively stable painting at different heights.

[0046] The second method is to use this device to make a rough blank with the side wall enlarged in proportion, and observe the coloring effect in advance by combining light and shadow. Specifically:

[0047] A rough clay block is made around the lacquerware. The selected cutting tool is mounted on the multi-purpose holder 33. The distance a between the cutting tool and the side wall of the lacquerware in front is determined. The length of the telescopic rod 32 is adjusted without changing the distance a. During the process, the telescopic rod 32 is pulled and rotated along the circular track 31 to carve out a proportionally enlarged rough block. Then, the rough block is hollowed out according to the location where the lacquerware is to be painted. After that, the user can install lamps and light and shadow units of various colors on the multi-purpose holder 33, move them, and illuminate the rough block from the outside inward to observe the surface of the lacquerware and estimate the painting effect.

[0048] According to the above, the device can reduce the probability of producing defective lacquerware and increase the output of lacquerware.

[0049] It is understandable that there can be multiple telescopic rods 32, and the rough draft can be cut into pieces longitudinally during the polishing stage to facilitate users to directly observe the surface of the lacquerware.

[0050] Reference Figure 2 and Figure 4 In one embodiment of the present device, the tensioning mechanism 23 includes a disc 231 , a pull rod 232 and a sleeve 233 .

[0051] Disk 1 231 is located below the center frame 21. Its radius is greater than the lateral width of the center frame 21's inner cavity, preventing the center frame 21 from falling out during lateral movement relative to the tensioning mechanism 23. A pull rod 232 is fixed to the center of disk 1 231 and extends upward through the center frame 21 and out of the elongated hole in the base 1. A sleeve 233 has a diameter greater than the width of the elongated hole to prevent it from falling out. The sleeve 233 is threaded onto the portion of the pull rod 232 that extends out of the elongated hole.

[0052] According to the above arrangement, the user rotates the sleeve 233 relative to the pull rod 232 to adjust the position of the disc 1 231, so that it pulls up the center frame 21 or statically supports the center frame 21. In order to facilitate the relative rotation of the pull rod 232 and the sleeve 233, the upper end of the pull rod 232 is formed with a prismatic structure as a handle.

[0053] During use, the user's line of sight is from top to bottom. Therefore, in order to facilitate the adjustment of the center frame 21 and observe whether it is aligned with the lacquerware at any time, the beam and disk 1 231 of the base 1 are made of transparent materials, such as transparent acrylic plates.

[0054] Furthermore, in order to facilitate the centering of vases and lacquerware, the edge of the disk 1 231 can be attached with red or other colors to quickly estimate the various lateral deviations of the disk 1 231 relative to the lacquerware when viewed from above, thereby accelerating the centering.

[0055] In one embodiment of the device, considering that when the inclination angle of the distance measuring unit 41 is certain, it can only be applied to lacquerware with a top view outline in a fixed range, and its applicability is relatively weak, the device is also provided with an angle adjustment mechanism 7 for adjusting the inclination angle of the two distance measuring units.

[0056] Reference Figure 2 、 Figure 5 and Figure 6 A module mounting box 8 is fixed to the bottom of the lower frame 22. It is coaxial with the disk 1 231 and has mounting holes defined on its symmetrical side walls. One end of the probe of the distance measuring unit 41 extends into the mounting hole. The distance measuring unit 41 is rotatably connected to the module mounting box 8 via a shaft and rotates vertically.

[0057] The angle adjustment mechanism 7 includes a pressing component and an elastic recovery component, wherein the pressing component includes a screw rod 1 71 , a disc 2 72 and a pressing rod 73 .

[0058] A threaded hole is defined along the central axis of pull rod 232. Screw rod 1 (71) is threadedly connected to the threaded hole. Its upper end extends from pull rod 232 to form another handle, while its lower end protrudes through disk 1 (231). Disk 2 (72) is positioned below disk 1 (231). A push-down rod (73) is secured to the lower portion of disk 2 and extends downward through lower frame 22 and into module mounting box 8. The lower end of push-down rod 73 has a chamfered edge that abuts against the two distance measuring units (41), achieving a downward pressure effect.

[0059] Reference Figure 6 The inner cavity of the module mounting box 8 is a bottom-opening structure, and the bottom opening is fixed with a matching lower cover 81 by bolts. The elastic recovery component is used to ensure that the two distance measuring units 41 always have an upward recovery tendency. Specifically, it includes: a support block 74, a guide rod 75 and a spring 76.

[0060] The support block 74 is located within the module mounting box 8. Its upper portion is curved and simultaneously contacts and supports both distance measuring units 41. Two guide rods 75 are provided, one end of which is fixed to the support block 74 and the other end extends downward through the lower cover 81. The number of springs 76 is the same as the number of guide rods 75. One end of the spring 76 is fixed to the bottom of the support block 74 and the other end contacts the upper portion of the lower cover 81.

[0061] That is, under the action of the spring 76 , the support block 74 always maintains a function of pushing the two distance measuring units 41 upward.

[0062] According to the above configuration, the user only needs to rotate the screw 1 71 to change the length of the screw 1 71 extending out of the disc 1 231 to change the position of the pressing rod 73 and change the tilt angle of the two distance measuring units 41 at one time to meet different usage requirements.

[0063] Reference Figure 4 In one embodiment of the present device, a plurality of centripetal rods 311 extending toward the center are fixed to the inner side of the ring rail 31. The number of centripetal rods 311 may be four and evenly distributed. Slots adapted to the centripetal rods 311 are provided on the center frame 21. The upper portion of the slot and the side facing away from the center of the center frame 21 are open.

[0064] During installation, the center frame plate 21 is not close to the crossbeam, and then the ring rail 31 is rotated, deflected, and moved upward so that it is placed above the center frame plate 21. Then, the ring rail 31 is rotated again to align the centripetal rod 311 with the slot, and then the ring rail 31 is lowered to make the centripetal rod 311 snap into the slot. After that, when the tensioning mechanism 23 tightens the center frame plate 21, the ring rail 31 can be fixed synchronously.

[0065] According to the above arrangement, the installation and disassembly of the ring rail 31 is relatively convenient, and the user can conveniently replace the ring rail 31 with one of different diameters to meet diverse usage requirements.

[0066] Reference Figure 4 In one embodiment of the present device, the telescopic rod 32 includes a second screw rod 321 , a height adjustment pipe 322 and a fastening nut 323 .

[0067] One end of the second screw rod 321 is formed with a slider to be slidably connected to the pre-opened annular groove on the ring rail 31; the other end of the second screw rod 321 faces downward and is threadedly connected to the fastening nut 323 and the height adjustment pipe 322 in sequence.

[0068] It is understood that when the telescopic rod 32 needs to be able to slide relative to the ring rail 31, the fastening nut 323 is separated from the ring rail 31; when the position of the telescopic rod 32 relative to the ring rail 31 needs to be fixed, the fastening nut 323 contacts the lower portion of the ring rail 31. When the length of the telescopic rod 32 needs to be adjusted, the height adjustment tube 322 is rotated relative to the screw 321.

[0069] Reference Figure 5 The multi-purpose seat 33 comprises a clamp 331 and a connecting block 332, wherein the clamp 331 is sleeved on the height adjustment pipe 322 and is fastened with bolts. The connecting block 332 is fixed to the outer wall of the clamp 331 and has a mounting hole formed thereon. The mounting hole can be a threaded hole, such as a threaded hole connected to the handle of a tool.

[0070] The arrangement of the multi-purpose seat 33 makes installation, disassembly and angle adjustment relatively convenient.

[0071] In one embodiment of the present device, scale bars are drawn on the edge of the central frame plate 21, more specifically on the long side thereof.

[0072] Taking the horizontal opening direction of the space enclosed by the gantry-shaped base 1 as the front and back, the scale bar can facilitate the left and right deviation when the center frame plate 21 is aligned with the center of the lacquerware.

[0073] Furthermore, another scale bar is drawn around the edge of the disc 1 231 or the ring track 31. The scale bar can facilitate the telescopic rod 32 to find the correct position when sliding and adjusting the position along the ring track 31 for painting and other actions, because it can help the user to grasp the specific movement amount of the telescopic rod 32.

[0074] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A lacquer art coloring auxiliary device, characterized by: It comprises a base (1), a centering mechanism (2), a multi-purpose movable frame (3), a distance measuring module (4), a control panel (5) and a display (6); The base (1) is formed with a crossbeam, and a long hole is opened on the crossbeam along the length direction; The centering mechanism (2) is used to cooperate with the distance measuring module (4) to find and align the center of the lacquerware, and the centering mechanism (2) includes a central frame plate (21), a lower frame body (22) and a tensioning mechanism (23); The center frame plate (21) is located below the crossbeam, and the tensioning mechanism (23) passes through the long hole and extends downward through the center frame plate (21). The tensioning mechanism (23) is used to pull the center frame plate (21) upward or support the center frame plate (21) according to the user's operation; The end of the lower frame (22) is fixed to the lower part of the central frame (21) and passes downward around the lower end of the tensioning mechanism (23). The lower frame (22) is open on both sides of the long hole. The distance measuring module (4) is installed at the lower part of the lower frame (22) and includes two distance measuring units (41). The two distance measuring units (41) are arranged transversely symmetrically with respect to the central axis of the central frame plate (21). The distance measuring direction of the distance measuring units (41) is inclined downward and outward. The control board (5) is electrically connected to the distance measuring unit (41) and the display (6). The display (6) is installed on the base (1). The multi-purpose movable frame (3) comprises a ring rail (31), a telescopic rod (32) and a multi-purpose seat (33); the ring rail (31) is connected to the central frame plate (21) and has the same central axis as the central frame plate (21); one end of the telescopic rod (32) is slidably connected to the ring rail (31), and the other end extends downward; the multi-purpose seat (33) is installed at the lower end of the telescopic rod (32) and is used to install lamps, knives, paint pens or light and shadow units.

2. The lacquer art coloring auxiliary device according to claim 1, characterized in that: The tensioning mechanism (23) includes a disc (231), a pull rod (232), and a sleeve (233). The disc (231) is located below the center frame plate (21) and its radius is greater than the lateral width of the inner cavity of the center frame plate (21). The pull rod (232) is fixed to the center of the disc (231) and passes through a long hole upward. The diameter of the sleeve (233) is greater than the width of the long hole and falls on the crossbeam. The sleeve (233) is threadedly connected to a section of the pull rod (232) extending out of the long hole. The crossbeam and the disc (231) are transparent structures.

3. The lacquer art coloring auxiliary device according to claim 2, characterized in that: It also includes an angle adjustment mechanism (7) for adjusting the tilt angles of the two distance measuring units (41); A module mounting box (8) is mounted on the lower surface of the lower frame (22), the module mounting box (8) and the disc (231) are coaxial, mounting holes are provided on the symmetrical side walls of the module mounting box (8), one end of the distance measuring unit (41) extends into the mounting hole, and the distance measuring unit (41) is rotatably connected to the module mounting box (8) by setting a rotating shaft and is vertically rotatable; The angle adjustment mechanism (7) comprises a pressing component and an elastic recovery component. The pressing component penetrates the module installation box (8) from top to bottom and applies force to the upper structure of the distance measuring unit (41). The elastic recovery component is installed in the module installation box (8) and supports the lower structure of the distance measuring unit (41). The pressing component is provided with a user operation portion.

4. The lacquer art coloring auxiliary device according to claim 3, characterized in that: The pressing assembly includes a screw rod 1 (71), a disc 2 (72) and a pressing rod (73); the pull rod (232) is provided with a threaded hole along the central axis; the screw rod 1 (71) is threadedly connected to the threaded hole and the upper end extends out of the pull rod (232) and the lower end passes through the disc 1 (231); the disc 2 (72) is located below the disc 1 (231); the pressing rod (73) is fixed to the lower part of the disc 2 (72) and penetrates downward through the lower frame (22), enters the module installation box (8) and simultaneously contacts the two distance measuring units (41).

5. The lacquer art coloring auxiliary device according to claim 3, characterized in that: The inner cavity of the module installation box (8) is open at the bottom, and the lower opening is covered and connected to the lower cover (81); the elastic recovery component comprises a support block (74), a guide rod (75) and a spring (76); the upper part of the support block (74) is an arc surface and contacts the two distance measuring units (41) at the same time; one end of the guide rod (75) is fixed to the bottom of the support block (74), and the other end penetrates the lower cover (81) downward; the spring (76) is sleeved on the guide rod (75) and is located between the support block (74) and the lower cover (81).

6. The lacquer art coloring auxiliary device according to claim 1, characterized in that: A plurality of centripetal rods (311) extending toward the center are fixed on the inner side of the ring rail (31), and a clamping groove adapted to the end of the centripetal rod (311) is provided on the central frame plate (21), and the upper portion of the clamping groove and the side away from the center of the central frame plate (21) are open structures.

7. The lacquer art coloring auxiliary device according to claim 1, characterized in that: The telescopic rod (32) includes a second screw rod (321), a height adjustment pipe (322) and a fastening nut (323). The upper end of the second screw rod (321) is slidably connected to the ring rail (31). The fastening nut (323) is threadedly connected to the second screw rod (321) and contacts the lower surface of the ring rail (31). The height adjustment pipe (322) is threadedly connected to the lower end of the second screw rod (321). The multi-purpose seat (33) is movably connected to the height adjustment pipe (322).

8. The lacquer art coloring auxiliary device according to claim 7, characterized in that: The multi-purpose seat (33) comprises a clamp (331) and a connecting block (332); the clamp (331) is sleeved on the height-adjusting pipe (322); and the connecting block (332) is fixed to the outer wall of the clamp (331) and is provided with a mounting hole.

9. The lacquer art coloring auxiliary device according to claim 2, characterized in that: The edge of the central frame plate (21) is provided with a scale bar.

10. The lacquer art coloring auxiliary device according to claim 9, characterized in that: Another scale bar is provided around the edge of the disc (231) or the ring track (31).

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