An apparatus for assisting in the plotting of three-dimensional dimensions

Abstract

The application relates to an auxiliary drawing instrument for a three-dimensional size map, which comprises an angle measuring system, a connecting part and a distance measuring system, wherein the angle measuring system comprises a horizontal angle measuring system and a vertical angle measuring system; the horizontal angle measuring system is horizontally arranged and can measure a horizontal rotation angle; the vertical angle measuring system is vertically arranged above the horizontal angle measuring system through the connecting part and can measure a vertical rotation angle; and the distance measuring system is horizontally arranged outside the vertical angle measuring system; the coordinates of a point in a three-dimensional space are calculated through the values of the horizontal angle measuring system and the vertical angle measuring system and the distance measured by the distance measuring system; the specific shape of a certain three-dimensional space can be known according to the continuously measured point information; the measuring precision is greatly improved; the measuring time is shortened; the device is simple to use; the measuring efficiency is effectively ensured; labor and labor cost are greatly saved; and the device is extremely practical.

Description

Technical Field

[0001] The present invention relates to the technical field of surveying and mapping devices, in particular to an auxiliary drawing instrument for three-dimensional dimension drawings. Background Art

[0002] With the development of the economy and the need for environmental protection (dust-free operation on site), higher requirements have been placed on the on-site measurement of user houses and various countertop cabinet sizes in the home improvement industry. The vast majority of existing measurement methods are manual measurement using a ruler, which results in extremely low measurement accuracy. There are laser rangefinders on the market that use infrared or other methods to measure distances, which greatly improves measurement accuracy. However, this measurement method can only simply measure the distance from a certain position to a certain point. When measuring continuous distances, it is necessary to manually move the measuring equipment and then measure again, resulting in a high error rate in the final measurement results. In addition, the mapping process of this measurement method requires a large amount of manual participation, which is extremely inconvenient. When measuring indoor on-site in the home improvement industry, in most cases, not only the distance is required, but the design of various cabinets often requires an understanding of the overall picture of a certain three-dimensional space to coordinate with the cabinets. Simple distance measurement often leads to problems such as loose coordination or inability to complete coordination, and the measurement efficiency is low, and it is impossible to draw a full picture based on the measurement results. This has caused great difficulties for on-site measurement in the home improvement industry. Summary of the Invention

[0003] In order to solve the above-mentioned problems of inconvenient on-site measurement of indoor home furnishings and decoration, large errors and low measurement efficiency in traditional measurement methods, the present invention provides an auxiliary drawing instrument for three-dimensional dimension drawings. This device is connected to a computer via Bluetooth or other means, and uses a laser rangefinder and an angle encoder for comprehensive measurement, which greatly improves the measurement speed and significantly reduces measurement errors and mistakes. The computer obtains the values ​​measured by this device, and then calculates the coordinates of a certain point in three-dimensional space. According to the continuously measured point information, a graphic is drawn on the computer, and a format that can be recognized by subsequent processes is generated. It can quickly measure the dimensions of cabinets or other parts of the house, greatly reducing the measurement difficulty and effectively improving the measurement efficiency.

[0004] The technical solutions of the present invention are as follows:

[0005] An auxiliary drawing instrument for three-dimensional dimension drawings includes an angle measurement system, a connecting portion and a distance measurement system. The angle measurement system includes a horizontal angle measurement system and a vertical angle measurement system. The horizontal angle measurement system is arranged horizontally and can measure the horizontal rotation angle, thereby understanding the horizontal offset angle of a certain point in space. The vertical angle measurement system is vertically arranged above the horizontal angle measurement system through the connecting portion, and can measure the vertical rotation angle, thereby understanding the vertical offset angle of the point in space. A distance measurement system is horizontally arranged outside the vertical angle measurement system for measuring the distance between the point and the device. Finally, the position coordinates of the point in space are obtained based on the horizontal offset angle, vertical offset angle and distance of the point. A three-dimensional drawing of a certain stereoscopic space is generated based on the measurement results of continuous points, thereby greatly improving the measurement accuracy. In addition, the measurement method is simple and greatly saves labor requirements.

[0006] As described above, an auxiliary drawing instrument for three-dimensional dimensional drawings, the horizontal angle measurement system includes a horizontal turntable and a horizontal encoder, the horizontal turntable includes a horizontal turntable lower body and a horizontal turntable upper body, the horizontal turntable upper body is rotatably connected above the horizontal turntable lower body, the horizontal encoder includes a first shell and a first rotating shaft, the first shell is fixedly connected to any horizontal turntable, the first rotating shaft is fixedly connected to the other horizontal turntable, the horizontal turntable lower body is fixed, and the first rotating shaft or the first shell is driven to rotate by rotating the horizontal turntable upper body, thereby measuring the horizontal offset angle of a certain point.

[0007] Furthermore, the vertical angle measurement system includes a vertical turntable and a vertical encoder, the vertical turntable includes a vertical turntable fixed part and a vertical turntable movable part, the vertical turntable fixed part is arranged vertically, and one side of the vertical turntable is rotatably connected to the vertical turntable movable part, the vertical encoder includes a second shell and a second rotating shaft, the second shell is fixedly connected to any vertical turntable, the second rotating shaft is fixedly connected to the other vertical turntable, the vertical turntable fixed part is fixed, and the second shell or the second rotating shaft is driven to rotate by rotating the vertical turntable movable part, thereby measuring the vertical offset angle of a certain point. According to the measurement of continuous points, the offset angle of each point of the spatial figure can be measured. Combined with the distance measurement system, the distance from each point to the instrument is measured, and the overall shape of the spatial figure can be obtained by calculation, which is extremely convenient to use.

[0008] In the auxiliary drawing instrument for three-dimensional dimensional drawings as described above, the first shell of the horizontal encoder is fixedly connected to the upper body of the horizontal turntable, and the vertical encoder is fixedly connected to the inner side of the fixed part of the vertical turntable, so that the vertical encoder is located above the horizontal encoder, which effectively reduces the layout volume of the device and makes the fit between the vertical turntable and the horizontal turntable of the device tighter.

[0009] Preferably, the horizontal encoder is perpendicular to the axis of the vertical encoder and is located in the same vertical plane, so that the device can establish an effective spatial origin in space when in use.

[0010] Preferably, the diameter of the horizontal turntable is larger than the horizontal distance between the outer side of the vertical turntable and the axis of the horizontal encoder, so that the vertical turntable is arranged close to the horizontal encoder, and the center of gravity of the device is biased toward the middle of the device, thereby increasing the stability of the device.

[0011] As described above, in an auxiliary drawing instrument for three-dimensional dimension drawings, the distance measurement system includes a rangefinder and a connecting device. The rangefinder is horizontally arranged outside the movable part of the vertical turntable. The rangefinder is fixedly connected to the movable part of the vertical turntable through the connecting device, so that when the device is in use, the rangefinder and the vertical angle measurement system have a good linkage relationship.

[0012] Preferably, the rangefinder axis is perpendicular to the vertical encoder axis and is located in the same horizontal plane, so that when the device is in use, an effective coordinate origin can be established and the measurement result can be more accurate.

[0013] Preferably, when the rangefinder is arranged horizontally, the clockwise and counterclockwise limit rotation angles of the vertical turntable movable part are the same, so that the vertical angle measurement system has a better measurement range and ensures the use effect of the vertical encoder.

[0014] As described above, in an auxiliary drawing instrument for three-dimensional dimensional drawings, the upper body and lower body of the horizontal turntable, the fixed part of the vertical turntable and the movable part of the vertical turntable are all rotatably connected by connecting parts. The connecting parts include a pressure cover and a sliding sleeve. This connection method ensures that the connection is tight while ensuring that the connection is detachable, thereby reducing the difficulty of connection.

[0015] As described above, an auxiliary drawing instrument for three-dimensional dimensional drawings is provided with protective covers above the horizontal angle measurement system and outside the vertical angle measurement system, and a distance measurement system is provided inside the protective cover outside the vertical angle measurement system. The protective cover above the horizontal angle measurement system is used to protect the horizontal encoder, and the protective cover outside the vertical angle measurement system is used to protect the distance measurement system.

[0016] The beneficial effects of the present invention are: the present invention is an auxiliary drawing instrument for three-dimensional dimension drawings, which is mainly composed of a distance measurement system, a horizontal angle measurement system and a vertical angle measurement system. The device is connected to a computer via Bluetooth or other connection methods. The computer obtains the numerical values ​​of the horizontal angle measurement system and the vertical angle measurement system, and calculates the coordinates of a certain point in three-dimensional space in combination with the distance measured by the distance measurement system. The graphics are drawn on the computer according to the continuously measured point information, and a format that can be recognized by subsequent processes is generated, which greatly improves the measurement accuracy and shortens the measurement time. At the same time, the device is simple to use, and while effectively ensuring the measurement efficiency, it greatly saves labor and labor costs, and is extremely practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the preferred embodiment below, the solutions and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only for illustrating the preferred embodiment and are not to be considered as limiting the present invention.

[0018] In the attached figure:

[0019] Figure 1 A schematic diagram of the structure of the three-dimensional drawing auxiliary drawing instrument in the embodiment;

[0020] Figure 2 for Figure 1 sectional view of

[0021] Figure 3 is a cross-sectional view of a horizontal angle measurement system in an embodiment;

[0022] Figure 4 Schematic diagram of the structure of the upper body of the horizontal turntable in the embodiment;

[0023] Figure 5 Schematic diagram of the structure of the upper body adapter plate in the embodiment;

[0024] Figure 6 Schematic diagram of the structure of the gland in the embodiment;

[0025] Figure 7 Schematic diagram of the structure of the lower body of the horizontal turntable in the embodiment;

[0026] Figure 8 is a cross-sectional view of a vertical angle measurement system in an embodiment;

[0027] Figure 9 This is a front view of the vertical angle measurement system in the embodiment;

[0028] Figure 10 Schematic diagram of the structure of the vertical turntable fixing portion in the embodiment;

[0029] Figure 11Schematic diagram of the structure of the vertical turntable movable part in the embodiment

[0030] Figure 12 Schematic diagram of the distance measurement system in the embodiment;

[0031] Figure 13 for Figure 6 The main view;

[0032] Figure 14 This is a schematic diagram of the connection portion in the embodiment;

[0033] The components represented by the reference numerals in the figure are:

[0034] 1. Vertical angle measurement system, 11. Vertical turntable fixed part, 12. Vertical turntable movable part, 13. Vertical encoder, 14. Vertical sliding sleeve, 15. Pressure cover, 16. Locking sleeve, 17. Fixed plate, 18. Vertical turntable cover, 2. Horizontal angle measurement system, 21. Horizontal turntable lower body, 22. Horizontal turntable upper body, 23. Horizontal encoder, 24. Horizontal sliding sleeve, 25. Upper body adapter plate, 26. Tension sleeve, 27. Tightening bolt, 28. Horizontal turntable cover, 3. Distance measurement system, 31. Power supply, 32. Laser bottom, 33. Laser rangefinder, 4. Connecting part DETAILED DESCRIPTION

[0035] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. It should be noted that these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. The present disclosure can be implemented in various forms and should not be limited by the embodiments described herein.

[0036] Example

[0037] This embodiment provides an auxiliary drawing instrument for three-dimensional dimension drawings, see Figure 1 , including an angle measurement system, a connecting part 4 and a distance measurement system 3, the angle measurement system includes a horizontal angle measurement system 2 and a vertical angle measurement system 1, the horizontal angle measurement system 2 is arranged horizontally, and it can measure the horizontal rotation angle, and thus understand the horizontal offset angle of a certain point in space, the vertical angle measurement system 1 is vertically arranged above the horizontal angle measurement system 2 through the connecting part 4, and it can measure the vertical rotation angle, and thus understand the vertical offset angle of the point in space, a distance measurement system 3 is horizontally arranged on the outside of the vertical angle measurement system 1, for measuring the distance between the point and the device, and finally the position coordinates of the point in space are obtained according to the horizontal offset angle, vertical offset angle and distance of the point, and a three-dimensional map of a three-dimensional space is generated according to the measurement results of continuous points, which greatly improves the measurement accuracy, and the measurement method is simple, which greatly saves labor requirements.

[0038] In this embodiment, see Figure 2 The horizontal angle measurement system 2 includes a horizontal turntable and a horizontal encoder 23. The horizontal turntable includes a horizontal turntable lower body 21 and a horizontal turntable upper body 22. The horizontal turntable upper body 22 is rotatably connected to the horizontal turntable lower body 21. The horizontal encoder 23 includes a first shell and a first rotating shaft. The first shell is fixedly connected to any horizontal turntable, and the first rotating shaft is fixedly connected to the other horizontal turntable. The horizontal turntable lower body 21 is fixed and the first rotating shaft or the first shell is driven to rotate by rotating the horizontal turntable upper body 22, thereby measuring the horizontal offset angle of a certain point.

[0039] Preferably, the horizontal turntable lower body 21 and the horizontal turntable upper body 22 are both disc structures with the same radius and are coaxially connected to ensure that the measured offset angle of a certain point in space is in a horizontal state, which greatly improves the measurement accuracy. A through hole is provided in the middle of the horizontal turntable, and the first rotating shaft of the horizontal encoder 23 is inserted into the through hole downward, and its first shell part is fixedly connected to the top of the horizontal turntable upper body 22, and the first rotating shaft is fixed in the through hole in the middle of the horizontal turntable lower body 21.

[0040] Further, combined Figure 4 、 Figure 5 、 Figure 6 and Figure 7 The upper body 22 of the horizontal turntable and the lower body 21 of the horizontal turntable are rotatably connected by a connecting piece, and the connecting piece includes an upper body adapter plate 25 and a pressure cover 15. The upper body adapter plate 25 is a circular disc with an opening in the middle, which is fixedly connected to the lower part of the horizontal turntable upper body 22, and the axis is the same as the axis of the horizontal turntable upper body 22. The upper end of the opening part is circumferentially provided with a notch, so that the middle opening part of the upper body adapter plate 25 is connected to the upper body 22 of the horizontal turntable to form a circular notch circumferentially, and the pressure cover 15 is horizontally arranged inside the notch. Its specifications match the shape of the notch and can rotate in the notch. The middle part of the pressure cover 15 is provided with an opening for allowing the first rotating shaft to pass through the pressure cover 15 smoothly. The upper middle part of the lower body 21 of the horizontal turntable is upwardly protruded and provided with a connecting platform. The connecting platform is a columnar structure, and the connecting platform passes through the middle opening of the upper body adapter plate 25 and is fixedly connected to the pressure cover 15. This connection method ensures a tight connection while ensuring that the connection is detachable, which greatly reduces the difficulty of connection.

[0041] Furthermore, a horizontal sleeve 24 is provided between the lower body 21 of the horizontal turntable and the upper body adapter plate 25. The upper end of the horizontal sleeve 24 is a cylindrical part with an opening in the middle, and the lower end of the cylinder is circumferentially provided with a circle of extension parts. The shape of the middle opening of the cylindrical part matches the outer ring of the connecting platform in the middle of the horizontal turntable lower body 21, and the outer ring matches the middle opening of the upper body adapter plate 25. The upper end of the extension part fits with the upper body adapter plate 25, and the lower end fits with the horizontal turntable lower body 21. It cooperates with the pressure cover 15 to enable the horizontal turntable upper body 22 to rotate freely, and at the same time ensures that the horizontal turntable upper body 22 can always remain in a certain plane during rotation.

[0042] As a preference, combining Figure 3 The top of the first rotating shaft part of the horizontal encoder 23 is located inside the lower body 21 of the horizontal turntable, and a tensioning sleeve 26 is provided circumferentially at its top. The tensioning sleeve 26 is a conical structure with a notch in the middle. It is mounted on the outside of the first rotating shaft through the notch and the top of the conical cone faces downward. The outer ring of the tensioning sleeve 26 is provided with a notch along the circumference, so that the tensioning sleeve 26 can be tightened inward under the action of external force. The lower end of the middle opening of the lower body 21 of the horizontal turntable is a threaded structure, and a tightening bolt 27 is provided inside it. The middle part of the tightening bolt 27 is an inverted conical structure, and the outer shape of the conical structure is smaller than the specification of the tensioning sleeve 26, so that when the tightening bolt 27 is rotated, the tensioning sleeve 26 can be squeezed and then tightened to achieve the purpose of fixing the first rotating shaft, and the first rotating shaft can be loosened by loosening the tightening bolt 27, and then the measuring range of the horizontal angle measurement system 2 can be adjusted as needed, which greatly increases the practicality of the device.

[0043] In this embodiment, see Figure 8 The vertical angle measurement system 1 includes a vertical turntable and a vertical encoder 13. The vertical turntable includes a vertical turntable fixed part 11 and a vertical turntable movable part 12. The vertical turntable fixed part 11 is arranged vertically, and one side thereof is rotatably connected to the vertical turntable movable part 12. The vertical encoder 13 includes a second shell and a second rotating shaft. The second shell is fixedly connected to any vertical turntable, and the second rotating shaft is fixedly connected to the other vertical turntable. The vertical turntable fixed part 11 is fixed and the second shell or the second rotating shaft is driven to rotate by rotating the vertical turntable movable part 12, thereby measuring the vertical offset angle of a certain point.

[0044] As a preference, combining Figure 9 、 Figure 10 and Figure 11The vertical turntable fixed part 11 and the vertical turntable movable part 12 are both disc structures with the same radius and are coaxially connected to ensure that the measured offset angle of a certain point in space is in a vertical state, which greatly improves the measurement accuracy. A through hole is provided in the middle of the vertical turntable, and the second rotating shaft of the vertical encoder 13 is inserted into the through hole toward the outside of the device. The second shell part is fixedly connected to the inner side of the vertical turntable fixed part 11, and the second rotating shaft is fixed in the through hole in the middle of the vertical turntable movable part 12.

[0045] Furthermore, the vertical turntable fixed part 11 and the vertical turntable movable part 12 are rotatably connected through a pressure cover 15. A notch is circumferentially provided at one end of the outer side of the middle through hole of the vertical turntable movable part 12. The notch is circular in shape and is colinear with the axis of the middle through hole of the vertical turntable. The pressure cover 15 is arranged in the notch, and its specifications match the shape of the notch, and it can rotate in the notch. A connecting platform is protruding outward on the outer side of the middle part of the vertical turntable fixed part 11. The connecting platform is a columnar structure. The connecting platform passes through the middle opening of the vertical turntable movable part 12 and is fixedly connected to the outer pressure cover 15. This connection method can ensure that the connection is tight while ensuring that the connection is detachable, which greatly reduces the difficulty of connection.

[0046] Furthermore, a vertical sliding sleeve 14 is provided between the vertical turntable fixed portion 11 and the vertical turntable movable portion 12, that is, at the outer bottom end of the connecting platform of the vertical turntable fixed portion 11. The outer end of the vertical sliding sleeve 14 is a cylindrical member with an opening in the middle. The cylindrical member is circumferentially provided with a circle of extension parts near one end of the vertical turntable fixed portion 11. The shape of the middle opening of the cylindrical member matches the outer ring of the connecting platform in the middle of the vertical turntable fixed portion 11, and the outer ring matches the middle opening of the vertical turntable movable portion 12. The outer end of the extension part is in contact with the vertical turntable movable portion 12, and the inner end is in contact with the vertical turntable fixed portion 11. It cooperates with the pressure cover 15 to enable the vertical turntable movable portion 12 to rotate freely, while ensuring that the vertical turntable movable portion 12 can always remain in a certain plane during rotation.

[0047] Furthermore, an opening is provided in the middle of the pressure cover 15 on the outer side of the vertical turntable movable part 12, and the top end of the second rotating shaft part of the vertical encoder 13 is located inside the vertical turntable movable part 12, and a locking sleeve 16 is provided circumferentially on its top end. The locking sleeve 16 is cylindrical with a notch in the middle, and the notch matches the outer shape of the second rotating shaft. The outer cylindrical specification of the locking sleeve 16 matches the shape of the opening in the middle of the pressure cover 15, and is inserted into the top end of the second rotating shaft. The locking sleeve 16 is provided with a fixed plate 17 at one end away from the second rotating shaft. One end of the fixed plate 17 is fixedly connected to the locking sleeve 16, and the other end is fixedly connected to the vertical turntable movable part 12. The locking sleeve 16 is driven to rotate by rotating the vertical turntable movable part 12, thereby driving the second rotating shaft to rotate.

[0048] Preferably, a limiting notch is provided below the vertical turntable fixed portion 11 and the vertical turntable movable portion 12. The limiting notch is arc-shaped and a limiting rod (not shown) is provided inside the notch, so that the vertical turntable movable portion 12 can rotate along the vertical turntable fixed portion 11 and be fixed at the extreme position by the limiting rod, thereby ensuring the use effect of the device and greatly increasing the practicality of the device.

[0049] In this embodiment, combined with Figure 12 and Figure 13 The distance measurement system 3 includes a rangefinder and a connecting device. The rangefinder is horizontally arranged outside the vertical turntable movable part 12. The rangefinder is fixedly connected to the vertical turntable movable part 12 through the connecting device, so that when the device is in use, the rangefinder and the vertical angle measurement system 1 have a good linkage relationship. Preferably, the axis of the rangefinder is perpendicular to the axis of the vertical encoder 13 and is located in the same horizontal plane, so that when the device is in use, it can establish an effective coordinate origin and make the measurement result more accurate. Preferably, when the rangefinder is arranged horizontally, the clockwise and counterclockwise limit rotation angles of the vertical turntable movable part 12 are the same, so that the vertical angle measurement system 1 has a relatively good measurement range, ensuring the use effect of the vertical encoder 13.

[0050] Furthermore, the rangefinder is a laser rangefinder 33, the connecting device is a laser bottom 32, the laser bottom 32 is fixedly connected to the vertical turntable movable part 12, and the laser rangefinder 33 is horizontally installed on the laser bottom 32. The laser path of the laser rangefinder 33 is horizontal and is located in the same horizontal plane as the axis of the vertical encoder 13, ensuring the use effect of the device. Preferably, a power supply 31 is also provided on the laser bottom 32.

[0051] In this embodiment, combined with Figure 14 The horizontal angle measurement system 2 and the vertical angle measurement system 1 are fixedly connected through a connecting part 4. The connecting part 4 includes two support blocks. The support block has a triangular structure, including two mutually perpendicular connecting surfaces and an inclined surface. One of the connecting surfaces is fixedly connected to the upper body 22 of the horizontal turntable, and the other connecting surface is connected to the vertical turntable fixing part 11, so that the vertical encoder 13 is located above the horizontal encoder 23. The support blocks are located on both sides of the horizontal encoder 23, which effectively reduces the layout volume of the device and makes the fit between the vertical turntable and the horizontal turntable of the device tighter.

[0052] Preferably, the horizontal encoder 23 is perpendicular to the axis of the vertical encoder 13 and is located in the same vertical plane, so that the device can establish an effective spatial origin in space when in use. At the same time, the diameter of the horizontal turntable is larger than the horizontal distance between the outer side of the vertical turntable and the axis of the horizontal encoder 23, so that the vertical turntable is arranged close to the horizontal encoder 23, so that the center of gravity of the device is biased toward the middle of the device, thereby increasing the stability of the device.

[0053] In this embodiment, protective covers are provided above the horizontal angle measurement system 2 and on the outside of the vertical angle measurement system 1. The protective cover above the horizontal angle measurement system 2 is a horizontal turntable cover 28, and the protective cover on the outside of the vertical angle measurement system 1 is a vertical turntable cover 18. The distance measurement system 3 is located inside the vertical turntable cover 18. The horizontal turntable cover 28 is used to protect the horizontal encoder 23, and the vertical turntable cover 18 is used to protect the distance measurement system 3. At the same time, two openings are provided at the lower end of the outer side of the vertical turntable cover 18, one of which is used to arrange a switch and the other is used to arrange a charging socket. Of course, the number of openings depends on the functions to be implemented, and this embodiment does not impose any restrictions on the number of openings.

[0054] In this embodiment, the horizontal sliding sleeve 24, the vertical sliding sleeve 14 and the pressure cover 15 are made of copper, which ensures that the device rotates smoothly while ensuring the connection strength, thereby greatly improving the service life of the device.

[0055] In this embodiment, the instrument is also provided with a Bluetooth module (not shown), which is connected to a computer via the Bluetooth module. When using the device, the use position of the device is first determined as needed, and then several feature points are selected in a certain three-dimensional space that needs to be known, and then the rotation angle and distance of these feature points relative to the instrument are measured. According to the angle and distance, after measuring the continuous points, the overall shape of the three-dimensional space can be drawn on the computer, which greatly reduces the time and labor requirements required for measurement, and effectively reduces the measurement error, and is extremely practical.

[0056] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes, additions, subtractions, or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An auxiliary drawing instrument for three-dimensional dimension drawings, characterized in that: The device comprises an angle measurement system, a connecting portion, and a distance measurement system. The angle measurement system comprises a horizontal angle measurement system and a vertical angle measurement system. The horizontal angle measurement system is arranged horizontally and is capable of measuring horizontal rotation angles. The vertical angle measurement system is vertically arranged above the horizontal angle measurement system through the connecting portion and is capable of measuring vertical rotation angles. A distance measurement system is horizontally arranged outside the vertical angle measurement system. The horizontal angle measurement system includes a horizontal turntable, which includes a horizontal turntable lower body and a horizontal turntable upper body. The horizontal turntable upper body and the horizontal turntable lower body are rotatably connected by a connecting piece. The connecting piece includes an upper body adapter plate and a pressure cover. The upper body adapter plate is a disc-shaped plate with an opening in the middle, which is fixedly connected to the lower part of the horizontal turntable upper body. A notch is circumferentially provided at the upper end of the opening. The pressure cover is horizontally arranged inside the notch. A connecting platform is provided on the upper middle part of the lower body of the horizontal turntable. The connecting platform is a columnar structure. The connecting platform passes through the middle opening of the upper body adapter plate and is fixedly connected to the pressure cover. A horizontal sliding sleeve is provided between the lower body of the horizontal turntable and the upper body adapter plate. The upper end of the horizontal sliding sleeve is a cylindrical part with an opening in the middle. The lower end of the cylinder is circumferentially provided with an extension portion. The shape of the central opening of the cylindrical part matches the outer ring of the connecting platform in the middle of the lower body of the horizontal turntable. The outer ring matches the central opening of the upper body adapter plate. The upper end of the extension portion fits with the upper body adapter plate, and the lower end fits with the lower body of the horizontal turntable. The vertical angle measurement system includes a vertical turntable, which includes a vertical turntable fixed portion and a vertical turntable movable portion. The vertical turntable fixed portion and the vertical turntable movable portion are rotatably connected via a gland. A through hole is provided in the middle of the vertical turntable. A notch is provided circumferentially at one end of the outer side of the through hole in the middle of the vertical turntable movable portion. The gland is arranged in the notch. A connecting platform is provided on the outer side of the middle of the vertical turntable fixed portion. The connecting platform is a columnar structure. The connecting platform passes through the middle opening of the vertical turntable movable portion and is fixedly connected to the gland on the outer side. A vertical sliding sleeve is provided between the vertical turntable fixed part and the vertical turntable movable part, that is, at the outer bottom end of the vertical turntable fixed part connecting platform. The outer end of the vertical sliding sleeve is a cylindrical part with an opening in the middle. A circle of extension parts is circumferentially provided near one end of the cylindrical part close to the vertical turntable fixed part. The shape of the central opening of the cylindrical part matches the outer ring of the connecting platform in the middle of the vertical turntable fixed part, and the outer ring matches the central opening of the vertical turntable movable part. The outer end of the extension part fits with the vertical turntable movable part, and the inner end fits with the vertical turntable fixed part.

2. The auxiliary drawing instrument for three-dimensional dimension drawing according to claim 1, characterized in that: The horizontal angle measurement system further includes a horizontal encoder, wherein the upper body of the horizontal turntable is rotatably connected to the upper body of the horizontal turntable, and the horizontal encoder includes a first housing and a first rotating shaft, wherein the first housing is fixedly connected to one horizontal turntable, and the first rotating shaft is fixedly connected to the other horizontal turntable; The vertical angle measurement system also includes a vertical encoder. The vertical turntable fixed part is arranged vertically, and one side of the vertical turntable is rotatably connected to the vertical turntable movable part. The vertical encoder includes a second shell and a second rotating shaft. The second shell is fixedly connected to any vertical turntable, and the second rotating shaft is fixedly connected to the other vertical turntable.

3. The auxiliary drawing instrument for three-dimensional dimension drawing according to claim 2, characterized in that: The first shell of the horizontal encoder is fixedly connected to the upper part of the horizontal turntable, and the vertical encoder is fixedly connected to the inner side of the fixing part of the vertical turntable, so that the vertical encoder is located above the horizontal encoder.

4. The auxiliary drawing instrument for three-dimensional dimension drawing according to claim 3, characterized in that: The horizontal encoder is perpendicular to the axis of the vertical encoder and is located in the same vertical plane.

5. The auxiliary drawing instrument for three-dimensional dimension drawing according to claim 4, characterized in that: The diameter of the horizontal turntable is greater than the horizontal distance between the outer side of the vertical turntable and the axis of the horizontal encoder.

6. The auxiliary drawing instrument for three-dimensional dimension drawing according to claim 2, characterized in that: The distance measurement system includes a rangefinder and a connecting device. The rangefinder is horizontally arranged outside the vertical turntable movable part and is fixedly connected to the vertical turntable movable part through the connecting device.

7. The auxiliary drawing instrument for three-dimensional dimension drawing according to claim 6, characterized in that: The rangefinder axis is perpendicular to the vertical encoder axis and is located in the same horizontal plane.

8. The auxiliary drawing instrument for three-dimensional dimension drawings according to claim 6, characterized in that: When the rangefinder is arranged horizontally, the clockwise and counterclockwise limit rotation angles of the vertical turntable movable portion are the same.

9. The auxiliary drawing instrument for three-dimensional dimension drawing according to claim 1, characterized in that: Protective covers are provided on the top of the horizontal angle measuring system and on the outside of the vertical angle measuring system.

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