Multifunctional measuring device for product design

Abstract

The invention relates to the field of measuring devices, and discloses a multifunctional measuring device for product design, which comprises an upper column body, the middle part of the upper column body is rotatably connected with two symmetrical and mutually spliced supporting rods, an angle measuring device is arranged between the two supporting rods, a three-dimensional scanning camera is arranged on the lower wall of the upper column body, and the three-dimensional scanning camera is arranged on the lower wall of the upper column body. A first support is fixedly connected to the upper wall, a controller is fixedly connected into the first support, a handrail is rotationally connected to the top end of the first support, and two three-dimensional scanning cameras are arranged on the outer walls of the opposite faces of the two supporting rods in a staggered mode according to different heights. Through cooperation of the upper column body, the supporting rod, the angle measuring device, the three-dimensional scanning camera, the wheel-shaped measuring tape and the wheel-shaped horizontal ruler, the whole measuring device can achieve multiple measuring purposes, can be used for traditional measurement and can also conduct three-dimensional contour scanning on an object, the effect of integrating multiple measuring functions is achieved, the tool cost is further reduced, and the working efficiency is improved. And the portability is improved.

Description

Technical Field

[0001] The invention relates to the field of measuring devices, in particular to a multifunctional measuring device for product design. Background Art

[0002] Product design measurement tools are an important tool for designers. By using these measurement tools, designers can more accurately measure parameters such as product size, angle and distance, thereby ensuring the accuracy and quality of product design. At the same time, the selection of product processing technology, material selection and other aspects also requires measurement data as a basis. Therefore, the use of measurement tools is an indispensable part of the product design process. Traditional measuring tools are mostly calipers, protractors, etc., which are mostly used to measure objects with relatively regular shapes. For objects with small sizes and complex external contours, traditional measuring tools are difficult to use effectively. At present, with the development of modeling software and hardware, most designs are completed through computer software. For objects with small sizes and complex external contours, they are more inclined to use three-dimensional scanning to obtain the structure.

[0003] However, during the product design process, the shapes of products and their components are diverse, which requires both traditional measurement tools and the use of technologies such as 3D scanning to assist. This requires the preparation of multiple measurement tools at the same time. Therefore, whether it is tool cost or portability, it is difficult to meet the needs of product designers. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a multifunctional measuring device for product design, which solves the problem that the existing measuring tools have a single function.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multifunctional measuring device for product design, comprising an upper cylinder, wherein two symmetrical and mutually assembled support rods are rotatably connected to the middle of the upper cylinder, an angle measuring device is arranged between the two support rods, a three-dimensional scanning camera is arranged on the lower wall of the upper cylinder, a bracket 1 is fixedly connected to the upper wall, a controller is fixedly connected to the bracket 1, a handrail is rotatably connected to the top of the bracket 1, two three-dimensional scanning cameras are also staggered at different heights on the outer walls of the opposite surfaces of the two support rods, the three three-dimensional scanning cameras are all communicatively connected to the controller, the controller wirelessly transmits the image data collected by the three three-dimensional scanning cameras to a computer, and generates a three-dimensional model diagram using modeling software, one of the support rods is provided with a connecting seat 1 at the free end, and the other support rod is provided with a connecting seat 2 at the free end, a wheel-shaped tape measure is arranged in the connecting seat 1, a wheel-shaped level ruler is arranged in the connecting seat 2, and a driving device is also arranged on the outer wall of the connecting seat 2 for driving the wheel-shaped level ruler to rotate and store the wheel-shaped tape measure.

[0006] Preferably, the support rod includes rod body 1 and rod body 2, one end of rod body 1 is rotatably connected to the middle part of the upper column, and the other end is provided with a locking device, an open sliding cavity is opened in rod body 1, and the outer wall of rod body 2 is slidably connected in the open sliding cavity, and rod body 1 and rod body 2 are locked with each other through the locking device.

[0007] Preferably, the outer wall of the rod body 1 of one of the support rods is inlaid with and fixedly connected with a magnetic sheet 1, which is magnetically connected to one of the three-dimensional scanning cameras, and the outer wall of the rod body 2 of the other support rod is inlaid with and fixedly connected with a magnetic sheet 2, which is magnetically connected to the other three-dimensional scanning camera.

[0008] Preferably, the angle measuring device includes an angle disk, the surface of which is provided with an angle scale, one end of the angle disk is fixedly connected to an outer wall of one of the rod bodies, an arc groove matching its curvature is opened in the middle of the angle disk, an outer wall of the other rod body is fixedly connected to one end of a slider, a pointer is fixedly connected to the other end of the slider, and the middle part of the slider passes through the arc groove and is slidably connected to the arc groove, the other end of the slider is also penetrated by and threadedly connected with a locking bolt, and the locking bolt is rotatably connected to the opposite end of the angle disk with a friction plate.

[0009] Preferably, a rotating shaft 1 is passed through and rotatably connected at the center of the connecting seat 1, a threaded rod is fixedly connected to the outer wall of the rotating shaft 1 located on one side inside the connecting seat 1, and a handle is fixedly connected to the outer wall of the rotating shaft 1 located on one side outside the connecting seat 1.

[0010] Preferably, a plurality of threaded holes are provided on the outer wall of the second connecting seat, a rotating shaft 2 passes through the center of the second connecting seat and is rotatably connected, a prismatic limiting groove is provided at one end of the second rotating shaft, and a nut is threadedly connected to the other end, the middle cross-section of the second rotating shaft is square, and the top walls of the first connecting seat and the second connecting seat are respectively fixedly connected with quick-connect devices.

[0011] Preferably, the wheel-shaped tape measure includes an outer shell, a threaded hole 2 matching the threaded rod is provided at the center of the outer shell, a sleeve is sleeved on the wall of the threaded hole 2 and rotatably connected, one end of the sleeve passes through the outer shell wall and is provided with a limiting groove 2 identical to the limiting groove 1, a plurality of threaded holes 3 identical to the threaded hole 1 are provided on the outer wall of the outer shell, a cavity is also provided in the outer shell, an output port is provided on the outer wall, the output port is connected to the cavity, and a cover plate matching the output port is inlaid and magnetically fixed at the output port, a soft ruler is wound around the sleeve in the cavity, one end of the soft ruler is fixedly connected to the outer wall of the sleeve, and the other end is rotatably connected to the inner wall of the cover plate.

[0012] Preferably, a through hole matching the square outer wall in the middle of the second rotating shaft is opened at the center of the wheel-shaped level, and the inner diameter of the through hole is smaller than the outer diameter of the nut, and the outer wall of the wheel-shaped level is fixedly connected with a rubber outer skin.

[0013] Preferably, the driving device includes a motor, a bracket 2 is fixedly connected to the outer wall of the motor, fixing bolts are respectively provided at the four corners of the bracket 2, the fixing bolts match the threaded hole 1, and the output end of the motor is fixedly connected to a limiting pin, and the limiting pin matches the limiting groove 1.

[0014] Preferably, the quick-connect device includes a magnetic seat, a magnetic end of the magnetic seat is sleeved and magnetically connected to a magnetic block matching it, one end of the magnetic block is fixedly connected to the end face of the second rod body, grooves are respectively provided on both sides of the magnetic seat, a locking plate is rotatably connected in the groove, one end of the locking plate is fixedly connected to the inner wall of the groove by a spring, and the protrusion at the other end is inserted into the notches on both sides of the magnetic block.

[0015] The present invention provides a multifunctional measuring device for product design, which has the following beneficial effects:

[0016] The present invention enables the entire measuring device to achieve multiple measurement purposes through the coordination of the upper column, the support rod, the angle measuring device, the three-dimensional scanning camera, the wheel-shaped measuring tape, and the wheel-shaped level ruler. It can be used for traditional measurements, such as length measurement, angle measurement, and level measurement, and can also perform three-dimensional contour scanning on objects to achieve rapid modeling of small-sized objects with complex external contours, thereby achieving the effect of integrating multiple measurement functions into one, thereby reducing the cost of the tool and improving portability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a multifunctional measuring device for product design according to the present invention;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 It is a schematic diagram of the local structure of the support rod in the present invention;

[0020] Figure 4 It is a structural schematic diagram of the connecting seat 1 in the present invention;

[0021] Figure 5 It is a structural schematic diagram of the connecting seat 2 in the present invention;

[0022] Figure 6 It is a partial structural schematic diagram of the wheel-shaped measuring tape in the present invention;

[0023] Figure 7 It is a schematic diagram of a part of the internal structure of the wheel-shaped measuring tape in the present invention;

[0024] Figure 8 is a schematic diagram of a wheel-shaped level ruler in the present invention;

[0025] Fig. 9 It is a schematic diagram of the structure of the driving device in the present invention;

[0026] Fig.10 It is a structural schematic diagram of the quick-connect device in the present invention.

[0027] Among them, 1. upper column; 2. support rod; 201. rod body 1; 202. rod body 2; 203. open sliding cavity; 3. 3D scanning camera; 4. bracket 1; 5. controller; 6. handrail; 7. connection seat 1; 8. connection seat 2; 9. wheel-shaped tape measure; 901. shell; 902. threaded hole 2; 903. sleeve; 904. limit groove 2; 905. threaded hole 3; 906. cavity; 907. output port; 908. cover plate; 909. soft ruler; 10. wheel-shaped level ruler; 1001. through hole; 1002. rubber cover; 1 1. Magnetic sheet one; 12. Magnetic sheet two; 13. Angle plate; 14. Arc groove; 15. Slider; 16. Pointer; 17. Locking bolt; 18. Rotating shaft one; 1801. Threaded rod; 1802. Handle; 19. Threaded hole one; 20. Rotating shaft two; 2001. Limiting groove one; 21. Nut; 22. Motor; 23. Bracket two; 24. Fixing bolt; 25. Limiting pin; 26. Magnetic seat; 2601. Groove; 2602. Locking sheet; 2603. Lug; 2604. Spring; 27. Magnetic block; 2701. Notch. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Please see attached Figure 1 -Attached Fig.10The embodiment of the present invention provides a multifunctional measuring device for product design, comprising an upper cylinder 1, wherein two symmetrical and mutually assembled support rods 2 are rotatably connected to the middle part of the upper cylinder 1, an angle measuring device is arranged between the two support rods 2, a three-dimensional scanning camera 3 is arranged on the lower wall of the upper cylinder 1, a bracket 1 4 is fixedly connected to the upper wall, a controller 5 is fixedly connected to the bracket 1 4, a handrail 6 is rotatably connected to the top of the bracket 1 4, two three-dimensional scanning cameras 3 are also staggeredly arranged at different heights on the outer walls of the opposite surfaces of the two support rods 2, the three three-dimensional scanning cameras 3 are all communicatively connected to the controller 5, the controller 5 wirelessly transmits the image data collected by the three three-dimensional scanning cameras 3 to a computer, and generates a three-dimensional model diagram using modeling software, a connecting seat 1 7 is arranged on the free end of one of the support rods 2, a connecting seat 2 8 is arranged on the free end of the other support rod 2, a wheel-shaped tape measure 9 is arranged in the connecting seat 1 7, a wheel-shaped level ruler 10 is arranged in the connecting seat 2 8, and a driving device is also arranged on the outer wall of the connecting seat 2 8 for driving the wheel-shaped level ruler 10 to rotate and the wheel-shaped tape measure 9 to be stored.

[0030] After the connection base 1 7, the connection base 2 8, and the three-dimensional scanning camera 3 are removed, the remaining upper column 1, the two support rods 2, and the angle measuring device constitute a traditional protractor structure, which can be used for angle measurement; the wheel-shaped level 10 can be used alone for level measurement, and the wheel-shaped tape measure 9 can be used alone for length measurement, and by installing a driving device on the wheel-shaped tape measure 9, the driving device can be used to realize the automatic storage of the wheel-shaped tape measure 9; the three-dimensional scanning application is to install the wheel-shaped tape measure 9 and the wheel-shaped level 10 in the connection base 1 7 and the connection base 2 8 respectively, and connect the connection base 1 7 and the connection base 2 8 to the two support rods 2 respectively, and then install the driving device on the connection base 2 8, at this time, the two support rods 2 are unfolded at a certain angle and fixed, and the object is placed within this angle, and the handrail 6 is held, and the wheel-shaped level 10 is driven by the driving device to rotate, so that the device as a whole performs a circular motion around the object, and then the three three-dimensional scanning cameras 3 synchronously scan the object in all directions, and finally the scanned data is transmitted to the computer by the controller 5, and a three-dimensional model diagram is generated by the modeling software.

[0031] Through the cooperation of the upper column 1, the support rod 2, the angle measuring device, the three-dimensional scanning camera 3, the wheel-shaped measuring tape 9, and the wheel-shaped level 10, the entire measuring device can achieve multiple measurement purposes. It can be used for traditional measurements, such as length measurement, angle measurement, and level measurement, and can also perform three-dimensional contour scanning on objects to achieve rapid modeling of small-sized objects with complex external contours, achieving the effect of integrating multiple measurement functions, thereby reducing the cost of the tool and improving portability.

[0032] The support rod 2 includes a rod body 1 201 and a rod body 202. One end of the rod body 1 201 is rotatably connected to the middle of the upper column 1, and the other end is provided with a locking device. An open sliding cavity 203 is opened in the rod body 1 201, and the outer wall of the rod body 202 is slidably connected in the open sliding cavity 203. The rod body 1 201 and the rod body 2 202 are locked with each other through the locking device.

[0033] According to the volume of the object to be measured, the extension length of the rod body 202 is adjusted to improve the applicability of the device. The locking device can adopt the existing commonly used locking structure.

[0034] The outer wall of the rod body 201 of one of the support rods 2 is inlaid with and fixedly connected with a magnetic sheet 11, and the magnetic sheet 11 is magnetically connected to one of the three-dimensional scanning cameras 3. The outer wall of the rod body 202 of the other support rod 2 is inlaid with and fixedly connected with a magnetic sheet 12, and the magnetic sheet 12 is magnetically connected to the other three-dimensional scanning camera 3.

[0035] In order to avoid the extension length of the second rod body 202 being too long, resulting in a blind spot in the three-dimensional scanning of the object, the three-dimensional scanning camera 3 is set as a detachable magnetic structure, one connected to the first rod body 201, and the other connected to the second rod body 202, so that after the second rod body 202 is extended, the three-dimensional scanning camera 3 is connected to the second rod body 202 to ensure the coverage of the scanning range of the lower part of the object. At the same time, when the second rod body 202 is retracted, due to the use of the magnetic connection method, under the premise of sufficient magnetic force, the three-dimensional scanning camera 3 can still be magnetically fixed to each other through the first rod body 201 and the magnetic sheet 2 12 on the second rod body 202.

[0036] The angle measuring device includes an angle disk 13, the surface of which is provided with an angle scale, one end of the angle disk 13 is fixedly connected to the outer wall of one of the rod bodies 201, an arc groove 14 matching its curvature is opened in the middle of the angle disk 13, the outer wall of the other rod body 201 is fixedly connected to one end of a slider 15, the other end of the slider 15 is fixedly connected with a pointer 16, and the middle part of the slider 15 passes through the arc groove 14 and is slidably connected with the arc groove 14, the other end of the slider 15 is also penetrated and threadedly connected with a locking bolt 17, and the locking bolt 17 is rotatably connected with a friction plate at one end relative to the angle disk 13.

[0037] By cooperating with the two rod bodies 201 and the angle disk 13, an angle measuring device is formed, which can be used for angle measurement. At the same time, by cooperating with the locking bolt 17 and the friction plate, the two rod bodies 201 are locked and fixed at a certain angle to facilitate three-dimensional scanning operations.

[0038] The outer wall of the connecting seat 28 is provided with a plurality of threaded holes 19, and a rotating shaft 20 is penetrated and rotatably connected at the center of the connecting seat 28. A prismatic limiting groove 2001 is provided at one end of the rotating shaft 20, and a nut 21 is threadedly connected at the other end. The middle section of the rotating shaft 20 is square, and the connecting seat 17 and the top wall of the connecting seat 28 are respectively fixedly connected with a quick connection device. A through hole 1001 matching the square outer wall of the middle part of the rotating shaft 20 is provided at the center of the wheel-shaped level 10, and the inner diameter of the through hole 1001 is smaller than the outer diameter of the nut 21. A rubber outer skin 1002 is fixedly connected to the outer wall of the wheel-shaped level 10. The driving device includes a motor 22, and a bracket 23 is fixedly connected to the outer wall of the motor 22. The four corners of the bracket 23 are respectively provided with fixing bolts 24, and the fixing bolts 24 match the threaded holes 19. A limiting pin 25 is fixedly connected to the output end of the motor 22, and the limiting pin 25 matches the limiting groove 2001.

[0039] The wheel-shaped level ruler 10 can be used alone for horizontal measurement. At the same time, when performing a three-dimensional scanning operation, the through hole 1001 is inserted into the square outer wall in the middle of the rotating shaft 20, and then the nut 21 is used to lock it. Then the motor 22 drives the rotating shaft 18 with the limiting groove 2001 to rotate through the limiting pin 25, thereby driving the wheel-shaped level ruler 10 to rotate. Then, in the three-dimensional scanning mode, the wheel-shaped tape measure 9 connected to the connecting seat 2 8 is used to realize the automatic movement of the device around the object to be detected, so as to achieve an all-round and stable scanning effect.

[0040] A rotating shaft 18 is passed through the center of the connecting seat 7 and is rotatably connected thereto. The rotating shaft 18 is located on one side of the inner wall of the connecting seat 7 and is fixedly connected to a threaded rod 1801. The rotating shaft 18 is located on one side of the outer wall of the connecting seat 7 and is fixedly connected to a handle 1802. The wheel-shaped measuring tape 9 comprises a shell 901, a threaded hole 902 matching the threaded rod 1801 is provided at the center of the shell 901, a sleeve 903 is sleeved on the wall of the threaded hole 902 and rotatably connected, one end of the sleeve 903 passes through the shell wall of the shell 901, and a limiting groove 904 identical to the limiting groove 2001 is provided, a plurality of threaded holes 905 identical to the threaded hole 19 are provided on the outer wall of the shell 901, a cavity 906 is further provided in the shell 901, an output port 907 is provided on the outer wall, the output port 907 is communicated with the cavity 906, and a cover plate 908 matching therewith is inlaid and magnetically fixed at the output port 907, a soft ruler 909 is wound around the sleeve 903 in the cavity 906, one end of the soft ruler 909 is fixedly connected to the outer wall of the sleeve 903, and the other end is rotatably connected to the inner wall of the cover plate 908.

[0041] The wheel-shaped measuring tape 9 can be used alone as an ordinary measuring tape to measure length. The soft tape 909 can be pulled out through the cover plate 908 for measurement. When storing, the sleeve 903 can be manually rotated to recover the soft tape 909. Alternatively, the driving device can be matched with the wheel-shaped measuring tape 9, that is, the limit pin 25 at the output end of the motor 22 is inserted into the limit groove 2 904, and the fixing bolt 24 is connected to the threaded hole 3 905 to fix the driving device. Then, the motor 22 can rotate to drive the sleeve 903 to rotate, thereby realizing the recovery of the soft tape 909. At the same time, when performing a three-dimensional scanning operation, the wheel-shaped measuring tape 9 is installed on the threaded rod 1801 through the threaded hole 2 902. At this time, the wheel-shaped measuring tape 9 constitutes a rotatable wheel, which cooperates with the wheel-shaped horizontal ruler 10 to rotate to realize automatic movement around the object to be detected, thereby playing a role of auxiliary support.

[0042] The quick-connect device includes a magnetic seat 26, a magnetic end of the magnetic seat 26 is sleeved and magnetically connected with a matching magnetic block 27, one end of the magnetic block 27 is fixedly connected to the end face of the rod body 202, grooves 2601 are respectively provided on both sides of the magnetic seat 26, a locking plate 2602 is rotatably connected in the groove 2601, one end of the locking plate 2602 is fixedly connected to the inner wall of the groove 2601 through a spring 2604, and the protrusion 2603 at the other end is inserted into the notches 2701 on both sides of the magnetic block 27.

[0043] The magnetic seat 26 and the magnetic block 27 are quickly positioned and fixed by magnetic force, and the locking piece 2602 is used to strengthen the connection between the two, so that the magnetic block 27 quickly and stably forms a fixed structure with the magnetic seat 26, thereby improving the assembly efficiency of the components in the device.

[0044] 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 multifunctional measuring device for product design, comprising an upper cylinder (1), characterized in that: The middle part of the upper column (1) is rotatably connected to two symmetrical and mutually assembled support rods (2), an angle measuring device is arranged between the two support rods (2), a three-dimensional scanning camera (3) is arranged on the lower wall of the upper column (1), a bracket (4) is fixedly connected to the upper wall, a controller (5) is fixedly connected inside the bracket (4), a handrail (6) is rotatably connected to the top of the bracket (4), and two three-dimensional scanning cameras (3) are also arranged alternately at different heights on the outer walls of the opposite surfaces of the two support rods (2), and the three three-dimensional scanning cameras (3) are connected to the controller. (5) communication connection, the controller (5) wirelessly transmits the image data collected by the three three-dimensional scanning cameras (3) to the computer, and generates a three-dimensional model diagram using modeling software, wherein a connecting seat (7) is provided at the free end of one of the support rods (2), and a connecting seat (8) is provided at the free end of the other support rod (2), a wheel-shaped measuring tape (9) is provided in the connecting seat (7), a wheel-shaped level ruler (10) is provided in the connecting seat (8), and a driving device is also provided on the outer wall of the connecting seat (8) for driving the wheel-shaped level ruler (10) to rotate the wheel-shaped measuring tape (9) to be stored.

2. A multifunctional measuring device for product design according to claim 1, characterized in that: The support rod (2) comprises a rod body 1 (201) and a rod body 2 (202); one end of the rod body 1 (201) is rotatably connected to the middle part of the upper column (1), and the other end is provided with a locking device; an open sliding cavity (203) is provided in the rod body 1 (201); the outer wall of the rod body 2 (202) is slidably connected in the open sliding cavity (203); the rod body 1 (201) and the rod body 2 (202) are mutually locked by the locking device.

3. A multifunctional measuring device for product design according to claim 2, characterized in that: The outer wall of the rod body 1 (201) of one of the support rods (2) is inlaid with and fixedly connected with a magnetic sheet 1 (11), and the magnetic sheet 1 (11) is magnetically connected to one of the three-dimensional scanning cameras (3); the outer wall of the rod body 2 (202) of the other support rod (2) is inlaid with and fixedly connected with a magnetic sheet 2 (12), and the magnetic sheet 2 (12) is magnetically connected to the other three-dimensional scanning camera (3).

4. A multifunctional measuring device for product design according to claim 2, characterized in that: The angle measuring device comprises an angle disk (13), the surface of which is provided with an angle scale, one end of the angle disk (13) is fixedly connected to the outer wall of one of the rod bodies (201), the middle of the angle disk (13) is provided with an arc groove (14) matching the arc, the outer wall of the other rod body (201) is fixedly connected to one end of a slider (15), the other end of the slider (15) is fixedly connected with a pointer (16), the middle of the slider (15) passes through the arc groove (14) and is slidably connected to the arc groove (14), the other end of the slider (15) also passes through and is threadedly connected with a locking bolt (17), and the locking bolt (17) is rotatably connected with one end of the angle disk (13).

5. The multifunctional measuring device for product design according to claim 2, characterized in that: A rotating shaft (18) is provided at the center of the connecting seat (7) and is rotatably connected thereto; the rotating shaft (18) is located on an inner side of the connecting seat (7) and is fixedly connected to a threaded rod (1801); the rotating shaft (18) is located on an outer side of the connecting seat (7) and is fixedly connected to a handle (1802).

6. A multifunctional measuring device for product design according to claim 5, characterized in that: The outer wall of the second connecting seat (8) is provided with a plurality of threaded holes (19); a second rotating shaft (20) passes through the center of the second connecting seat (8) and is rotatably connected thereto; a prismatic limiting groove (2001) is provided at one end of the second rotating shaft (20); a nut (21) is threadedly connected to the other end; the middle section of the second rotating shaft (20) is square; and the first connecting seat (7) and the top wall of the second connecting seat (8) are respectively fixedly connected thereto with quick-connect devices.

7. A multifunctional measuring device for product design according to claim 6, characterized in that: The wheel-shaped measuring tape (9) comprises a shell (901), wherein a second threaded hole (902) matching the threaded rod (1801) is provided at the center of the shell (901), a sleeve (903) is sleeved on the hole wall of the second threaded hole (902) and is rotatably connected, one end of the sleeve (903) passes through the shell wall of the shell (901) and is provided with a second limiting groove (904) identical to the first limiting groove (2001), and a plurality of third threaded holes (904) identical to the first threaded hole (19) are provided on the outer wall of the shell (901). (905), a cavity (906) is also provided in the shell (901), an output port (907) is provided on the outer wall, the output port (907) is communicated with the cavity (906), and a cover plate (908) matching with the output port (907) is embedded and magnetically fixed at the output port (907), a soft ruler (909) is wound around the sleeve (903) in the cavity (906), one end of the soft ruler (909) is fixedly connected to the outer wall of the sleeve (903), and the other end is rotatably connected to the inner wall of the cover plate (908).

8. A multifunctional measuring device for product design according to claim 7, characterized in that: A through hole (1001) matching the square outer wall in the middle of the second rotating shaft (20) is provided at the center of the wheel-shaped level (10), and the inner diameter of the through hole (1001) is smaller than the outer diameter of the nut (21). The outer wall of the wheel-shaped level (10) is fixedly connected with a rubber outer skin (1002).

9. A multifunctional measuring device for product design according to claim 8, characterized in that: The driving device comprises a motor (22), the outer wall of the motor (22) is fixedly connected to a second bracket (23), four corners of the second bracket (23) are respectively provided with fixing bolts (24), the fixing bolts (24) match the first threaded hole (19), the output end of the motor (22) is fixedly connected to a limiting pin (25), and the limiting pin (25) matches the first limiting groove (2001).

10. The multifunctional measuring device for product design according to claim 6, characterized in that: The quick-connect device comprises a magnetic seat (26), a magnetic end of the magnetic seat (26) is sleeved with and magnetically connected to a matching magnetic block (27), one end of the magnetic block (27) is fixedly connected to the end surface of the second rod body (202), grooves (2601) are respectively provided on both sides of the magnetic seat (26), a locking plate (2602) is rotatably connected in the groove (2601), one end of the locking plate (2602) is fixedly connected to the inner wall of the groove (2601) through a spring (2604), and the protruding piece (2603) at the other end is inserted into the notches (2701) on both sides of the magnetic block (27).

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