Measuring device

Abstract

This invention provides a measuring device. The measuring device includes: a base with a working surface; a positioning structure movably disposed on the working surface, the positioning structure having a bearing end and a receiving end, the receiving end having a receiving recess; and a measuring structure disposed on the base. The positioning structure has a reference state and a positioning state. When the positioning structure is in the reference state, the end face of the receiving end is in contact with the working surface, and the measuring structure measures the height between the end face of the bearing end and the working surface. When the positioning structure is in the positioning state, the end face of the bearing end is in contact with the working surface, the receiving recess accommodates the non-measuring segment of the sample to be measured, the end face of the receiving end is in contact with the end face of the segment to be measured near the working surface, and the measuring structure measures the height between the end face of the segment to be measured away from the working surface and the working surface. This invention effectively solves the problem of poor efficiency in measuring the sample thickness of a rotational rheometer by operators in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of measuring instrument technology, and more specifically, to a measuring device. Background Technology

[0002] Currently, to ensure product quality, manufacturers typically study the rheological properties of materials, such as viscosity, elasticity, and plasticity. When studying the rheological behavior of materials, researchers usually use a rotational rheometer for testing. The rotational rheometer precisely controls and measures the rheological parameters of the sample. The sample measured by the rotational rheometer is usually designed with a grooved circular base and a small-diameter cylindrical structure, which ensures good stability during testing and guarantees the accuracy of the results. The thickness of the sample is a critical parameter in rheometer testing, affecting the accuracy and repeatability of the results; therefore, it is essential to ensure the reliability and accuracy of the sample thickness measurement results.

[0003] In existing technologies, workers typically use micrometers or vernier calipers to measure the thickness of the sample to ensure the accuracy of the measurement.

[0004] However, due to the special structural design of the sample, the measurement efficiency of the staff is relatively slow during the measurement process. Furthermore, manual measurement is susceptible to human error, leading to significant errors and affecting the measurement results. Utility Model Content

[0005] The main objective of this invention is to provide a measuring device to solve the problem of poor efficiency in measuring the thickness of samples in a rotational rheometer by operators in the prior art.

[0006] To achieve the above objectives, this utility model provides a measuring device, comprising: a base having a working surface; a positioning structure movably disposed on the working surface, the positioning structure having a bearing end and a receiving end, the receiving end having a receiving recess; and a measuring structure disposed on the base; wherein the positioning structure has a reference state and a positioning state. When the positioning structure is in the reference state, the end face of the receiving end is in contact with the working surface, and the measuring structure measures the height between the end face of the bearing end and the working surface; when the positioning structure is in the positioning state, the end face of the bearing end is in contact with the working surface, the receiving recess accommodates the non-measuring segment of the workpiece, the end face of the receiving end is in contact with the end face of the section to be measured of the workpiece closest to the working surface, and the measuring structure measures the height between the end face of the section to be measured away from the working surface and the working surface.

[0007] Furthermore, the measuring structure includes a measuring section, the position of which is adjustable to abut against the end face of the measuring section away from the working surface, or against the end face of the bearing end.

[0008] Furthermore, the base also includes a base plate and a support structure, the support structure being disposed on the base plate and located below the measuring part, and the support structure having a working surface.

[0009] Furthermore, the measuring device also includes a support structure disposed on a base plate, the support structure having a receiving recess, and at least a portion of the measuring part being movably disposed within the receiving recess.

[0010] Furthermore, the measuring structure also includes a display unit, which is mounted on the support structure; wherein the measuring unit is connected to the display unit so that the display unit displays the measurement values ​​of the measuring unit.

[0011] Furthermore, the support structure includes: a support portion disposed on a base plate; and a connecting portion disposed on the support portion, the connecting portion including at least two oppositely disposed receiving members, with a receiving recess formed between the at least two receiving members.

[0012] Furthermore, the display unit has a mounting member with a through hole for the measuring unit to pass through. The measuring device also includes a locking structure that passes through at least two opposing receiving members to adjust the size of the receiving recess so that the sidewall of the receiving recess fits against the outer peripheral surface of the mounting member.

[0013] Furthermore, the support portion includes a first support section and a second support section that are connected to each other. The end of the first support section away from the second support section is connected to the base plate, and the end of the second support section away from the first support section is connected to the connecting portion; wherein the first support section and the second support section are arranged at an angle.

[0014] Furthermore, the measuring device also includes an illumination structure, which is located at one end of the connection near the working surface to illuminate the working surface.

[0015] Furthermore, the positioning structure includes a support portion having a support end; wherein the support portion is metal, such that the end face of the support end is planar.

[0016] The technical solution of this utility model describes a measuring device with a base having a working surface. A positioning structure is movably mounted on the working surface, having a bearing end and a receiving end, the receiving end having a receiving recess. A measuring structure is mounted on the base. The positioning structure has a reference state and a positioning state. When the positioning structure is in the reference state, the end face of the receiving end is in contact with the working surface, and the measuring structure measures the height between the end face of the bearing end and the working surface. When the positioning structure is in the positioning state, the end face of the bearing end is in contact with the working surface, the receiving recess accommodates the non-measuring segment of the sample, the end face of the receiving end is in contact with the end face of the segment to be measured near the working surface, and the measuring structure measures the height between the end face of the segment to be measured away from the working surface and the working surface. Thus, when the operator needs to measure the sample thickness of the rotational rheometer, the positioning structure is first positioned in the reference state, i.e., the end face of the receiving end of the positioning structure is in contact with the working surface, allowing the measuring structure to measure the height of the positioning structure by measuring the distance between the end face of the bearing end and the working surface. Afterwards, the operator positions the positioning structure, with the bearing end face of the positioning structure fitting against the working surface. The recessed portion accommodates the non-measuring section of the sample that does not require measurement, and the accommodating end face abuts against the end face of the sample's measuring section near the working surface. This allows the measuring structure to measure the overall height of the positioning structure and the sample. Subtracting the height of the positioning structure from the overall height of the positioning structure and the sample yields the sample thickness. This reduces manual operation by the operator, improves the efficiency of sample measurement, and reduces the error in measuring sample thickness. Consequently, it solves the problem of poor efficiency in measuring sample thickness using a rotational rheometer in existing technologies. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A perspective view of the overall structure of the measuring device according to the present invention is shown, illustrating the state of the measured object.

[0019] Figure 2 It shows Figure 1 Exploded view of the measuring device in the diagram;

[0020] Figure 3 It shows Figure 2 Enlarged diagram of point A in the diagram;

[0021] Figure 4 It shows Figure 2 Enlarged diagram of point B in the diagram;

[0022] Figure 5 It shows Figure 1 The front view of the structure in which the measuring device positions the workpiece to be measured;

[0023] Figure 6 It shows Figure 5 Sectional view at point C;

[0024] Figure 7 It shows Figure 1 A three-dimensional view of the overall structure of the measuring device, measuring and positioning structure, and its state.

[0025] The above figures include the following reference numerals:

[0026] 1. Component to be measured; 101. Non-measuring section; 102. Section to be measured;

[0027] 10. Base; 11. Base plate; 12. Load-bearing structure; 121. Working surface;

[0028] 20. Positioning structure; 21. Bearing part; 211. Bearing end; 22. Receiving end; 221. Receiving recess;

[0029] 30. Measuring structure; 31. Measuring unit; 32. Display unit; 321. Mounting component;

[0030] 40. Support structure; 41. Support part; 411. First support section; 412. Second support section; 42. Connecting part; 421. Receiving element; 43. Receiving recess;

[0031] 50. Locking structure. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0034] In this utility model, unless otherwise stated, directional terms such as "upper" and "lower" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally used in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0035] To address the problem of poor efficiency in measuring sample thickness using a rotational rheometer in existing technologies, this application provides a measuring device.

[0036] like Figures 1 to 7 As shown, the measuring device includes a base 10, a positioning structure 20, and a measuring structure 30. The base 10 has a working surface 121. The positioning structure 20 is movably disposed on the working surface 121 and has a bearing end 211 and a receiving end 22, the receiving end 22 having a receiving recess 221. The measuring structure 30 is disposed on the base 10. The positioning structure 20 has a reference state and a positioning state. When the positioning structure 20 is in the reference state, the end face of the receiving end 22 is in contact with the working surface 121, and the measuring structure 30 measures the height between the end face of the bearing end 211 and the working surface 121. When the positioning structure 20 is in the positioning state, the end face of the bearing end 211 is in contact with the working surface 121, the receiving recess 221 receives the non-measuring segment 101 of the part to be measured 1, the end face of the receiving end 22 is in contact with the end face of the part to be measured 102 near the working surface 121, and the measuring structure 30 measures the height between the end face of the part to be measured 102 away from the working surface 121 and the working surface 121.

[0037] Using the technical solution of this embodiment, the base 10 of the measuring device has a working surface 121. A positioning structure 20 is movably disposed on the working surface 121, and the positioning structure 20 has a bearing end 211 and a receiving end 22, with the receiving end 22 having a receiving recess 221. A measuring structure 30 is disposed on the base 10. The positioning structure 20 has a reference state and a positioning state. When the positioning structure 20 is in the reference state, the end face of the receiving end 22 is in contact with the working surface 121, and the measuring structure 30 measures the height between the end face of the bearing end 211 and the working surface 121. When the positioning structure 20 is in the positioning state, the end face of the bearing end 211 is in contact with the working surface 121, the receiving recess 221 accommodates the non-measuring segment 101 of the workpiece 1, the end face of the receiving end 22 is in contact with the end face of the section 102 of the workpiece 1 near the working surface 121, and the measuring structure 30 measures the height between the end face of the section 102 of the workpiece 1 away from the working surface 121 and the working surface 121. In this way, when the operator needs to measure the sample thickness of the rotational rheometer, the positioning structure 20 is first positioned in a reference state, that is, the end face of the receiving end 22 of the positioning structure 20 is in contact with the working surface 121. This allows the measuring structure 30 to measure the height of the positioning structure 20 by measuring the distance between the end face of the bearing end 211 and the working surface 121. Then, the operator positions the positioning structure 20 in a positioning state, with the end face of the bearing end 211 in contact with the working surface 121. The receiving recess 221 accommodates the non-measuring section 101 of the sample that does not need to be measured, and the end face of the receiving end 22 abuts against the end face of the section 102 of the sample to be measured near the working surface 121. This allows the measuring structure 30 to measure the overall height of the positioning structure 20 and the sample. The thickness of the sample is then obtained by subtracting the height of the positioning structure 20 from the overall height of the positioning structure 20 and the sample. This reduces manual operation by the operator, improves the efficiency of sample measurement, and reduces the error in sample thickness measurement, thus solving the problem of poor efficiency in measuring the sample thickness of rotational rheometers in the prior art.

[0038] In this embodiment, the part to be measured, 1, is a sample.

[0039] like Figures 5 to 7 As shown, the sample to be measured 1 includes a large cylinder and a small cylinder connected to each other. A groove is provided at the end of the large cylinder furthest from the small cylinder. The operator needs to measure the thickness of the sample, which is the sum of the thicknesses of the large and small cylinders. Traditional micrometers and vernier calipers are difficult to use for this measurement. This application addresses this by first measuring the height of the positioning structure 20, then placing the groove in the receiving recess 221, with the end face of the receiving end 22 abutting against the end face of the large cylinder furthest from the small cylinder. In this way, the total height measured by the measuring structure 30 minus the height of the positioning structure 20 gives the total thickness of the sample, reducing the operator's difficulty and improving measurement efficiency.

[0040] like Figures 1 to 3 As shown, the measuring structure 30 includes a measuring part 31, which is adjustable in position to abut against the end face of the measuring part 31 away from the working surface 121, or against the end face of the bearing end 211. In this way, the measuring structure 30 can measure the end face of the section to be measured 102 or the end face of the bearing end 211 through the adjustable measuring part 31, ensuring the measurement reliability of the measuring structure 30. Simultaneously, the above configuration allows the measuring structure 30 to adapt to samples of different specifications and sizes, expanding the measurement range of the measuring structure 30, improving its versatility, and thus improving the measurement versatility of the measuring device. Furthermore, during the measurement of the sample, the operator only needs to adjust the measuring position of the measuring part 31 to achieve the measurement of the sample, without additional operating steps, simplifying the operator's operation process and further improving the operator's work efficiency and experimental efficiency.

[0041] In this embodiment, the measuring unit 31 is rod-shaped, and a high-precision displacement sensor is installed inside the measuring unit 31.

[0042] like Figure 1 , Figure 2 and Figure 7 As shown, the base 10 also includes a base plate 11 and a support structure 12. The support structure 12 is disposed on the base plate 11 and located below the measuring section 31, and has a working surface 121. This arrangement of the support structure 12 allows the operator to more quickly place the positioning structure 20 and the workpiece 1 to be measured below the measuring section 31, enabling the measuring structure 30 to measure the positioning structure 20 and the workpiece, thus shortening the operator's placement time and further improving the operator's measurement efficiency.

[0043] In this embodiment, the measuring unit 31 is arranged perpendicular to the working surface 121 to improve measurement accuracy.

[0044] Specifically, during the measurement process, the measuring unit 31 will press the end face of the bearing end 211 or the end face of the sample to ensure the accuracy of the measurement.

[0045] like Figure 2 and Figure 4As shown, the measuring device also includes a support structure 40, which is mounted on the base plate 11. The support structure 40 has a receiving recess 43, and at least a portion of the measuring part 31 is movably disposed within the receiving recess 43. This arrangement of the support structure 40 provides support for the measuring structure 30, ensuring the reliability of the measuring part 31's movement and thus guaranteeing the measurement reliability of the measuring part 31. Simultaneously, the receiving recess 43 also provides a guiding effect for the movement of the measuring part 31, preventing its deviation and further improving the measurement accuracy of the measuring part 31.

[0046] like Figures 1 to 3 As shown, the measuring structure 30 also includes a display unit 32, which is mounted on the support structure 40. The measuring unit 31 is connected to the display unit 32, allowing the display unit 32 to display the measurement values ​​of the measuring unit 31. This arrangement enables the measurement values ​​of the measuring unit 31 to be displayed on the display unit 32 in a timely manner, achieving instant display of the measurement values ​​and avoiding the inconvenience caused by workers bending over to view the values, thus improving the convenience and efficiency of measurement. Furthermore, the arrangement of the display unit 32 on the support structure 40 and connected to the measuring unit 31 optimizes the structural layout, reduces the use of external equipment, makes the measuring device structure more compact, reduces the overall space occupancy, ensures the miniaturization of the measuring device, and also ensures the convenience of maintenance and upkeep.

[0047] In this embodiment, the display unit 32 is a display screen.

[0048] In this embodiment, the measuring structure 30 also includes a control unit, which is connected to both the measuring unit 31 and the display unit 32. The control unit controls the measuring process of the measuring unit 31 and processes the measured values, and the processed values ​​are displayed on the display unit 32.

[0049] Optionally, the display unit 32 is also equipped with three control buttons. One of the control buttons is used for zeroing. After the measuring unit 31 measures the overall height of the positioning structure 20, the operator presses the control button to zero the measurement value. Then, the operator places the sample slot into the receiving recess 221 of the positioning structure 20, and the measuring unit 31 measures the sample. The measured value is the thickness of the sample.

[0050] like Figure 2 and Figure 4As shown, the support structure 40 includes a support portion 41 and a connecting portion 42. The support portion 41 is disposed on the base plate 11. The connecting portion 42 is disposed on the support portion 41 and includes at least two oppositely disposed receiving members 421, with a receiving recess 43 formed between the at least two receiving members 421. In this way, the support structure 40 achieves connection with the base plate 11 through the support portion 41 and connection with the measuring portion 31 through the connecting portion 42, thus ensuring the support reliability of the support structure 40. At the same time, the receiving recess 43 formed by the two receiving members 421 provides a certain degree of adjustability for the receiving recess 43, improving the versatility of the receiving recess 43 and thereby enhancing the versatility of the support structure 40.

[0051] In this embodiment, two accommodating members 421 are provided.

[0052] It should be noted that the number of accommodating components 421 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, the number of accommodating components 421 may be three, four, six, eight, or more.

[0053] like Figure 3 and Figure 4 As shown, the display unit 32 has a mounting member 321 with a through hole for the measuring unit 31 to pass through. The measuring device also includes a locking structure 50 that passes through at least two opposing receiving members 421 to adjust the size of the receiving recess 43 so that the sidewall of the receiving recess 43 fits against the outer peripheral surface of the mounting member 321. Thus, the mounting member 321 of the display unit 32 is disposed within the receiving recess 43. After the measuring unit 31 is connected to the display unit 32, it passes through the through hole and the receiving recess 43 to measure the positioning structure 20 or the sample on the working surface 121, thereby optimizing the structural layout between the support structure 40 and the measuring structure 30 and ensuring the compactness of the measuring device. Meanwhile, the locking structure 50 brings the two opposing receiving members 421 closer together, thereby adjusting the size of the receiving recess 43 so that it can fit snugly against the mounting member 321 to lock it in place. This achieves the connection between the display unit 32 and the support structure 40, ensuring the reliable installation of the display unit 32. Furthermore, the method of adjusting the receiving recess 43 using the locking structure 50 simplifies the adjustment process and enhances its versatility, allowing it to accommodate mounting members 321 of different sizes and specifications, further improving the overall usability of the measuring device.

[0054] In this embodiment, the locking structure 50 is a screw.

[0055] like Figure 2As shown, the support portion 41 includes a first support section 411 and a second support section 412 connected to each other. The end of the first support section 411 away from the second support section 412 is connected to the base plate 11, and the end of the second support section 412 away from the first support section 411 is connected to the connecting portion 42. The first support section 411 and the second support section 412 are arranged at an angle. In this way, the support structure 40, through the arrangement of the support portion 41 and the connecting portion, not only supports the detection structure and ensures the stability of the support structure 40, but also reduces the space occupied, making the structure of the measuring device more compact. This further ensures the miniaturization design of the measuring device and facilitates its maintenance and upkeep.

[0056] In this embodiment, the first support segment 411 and the second support segment 412 are arranged at a 90° angle.

[0057] It should be noted that the included angle between the first support section 411 and the second support section 412 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, the included angle between the first support section 411 and the second support section 412 is 60°, 80°, 85°, 115°, or 135°.

[0058] Specifically, the measuring device also includes an illumination structure, which is located at one end of the connecting part 42 near the working surface 121 to illuminate the working surface 121. This arrangement ensures sufficient and uniform light illumination on the working surface 121, improving the operator's accuracy and enabling the measuring device to operate even in dimly lit environments. This enhances the environmental adaptability of the measuring device and further improves its versatility.

[0059] In this embodiment, the lighting structure is an LED lamp.

[0060] like Figure 5 and Figure 6 As shown, the positioning structure 20 includes a support portion 21, which has a support end 211. The support portion 21 is made of metal, with the end face of the support end 211 being flat. This metallic support portion 21 ensures the placement stability and positioning reliability of the positioning structure 20, while the flat end face avoids measurement errors caused by unevenness, further improving the measurement accuracy of the measuring device. Simultaneously, the metallic support portion 21 also ensures the hardness and rigidity of the positioning structure 20, which is beneficial for improving the environmental adaptability of the positioning structure 20 and extending its service life.

[0061] Specifically, the metal is copper.

[0062] In this embodiment, the positioning structure 20 is entirely made of metal.

[0063] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0064] The base of the measuring device has a working surface. A positioning structure is movably mounted on the working surface. The positioning structure has a bearing end and a receiving end, with the receiving end having a receiving recess. The measuring structure is mounted on the base. The positioning structure has a reference state and a positioning state. When the positioning structure is in the reference state, the end face of the receiving end is in contact with the working surface, and the measuring structure measures the height between the end face of the bearing end and the working surface. When the positioning structure is in the positioning state, the end face of the bearing end is in contact with the working surface, the receiving recess accommodates the non-measuring segment of the sample, and the end face of the receiving end is in contact with the end face of the segment to be measured closest to the working surface. The measuring structure measures the height between the end face of the segment to be measured furthest from the working surface and the working surface. Thus, when the operator needs to measure the sample thickness of the rotational rheometer, the positioning structure is first positioned in the reference state, i.e., the end face of the receiving end of the positioning structure is in contact with the working surface, allowing the measuring structure to measure the height of the positioning structure by measuring the distance between the end face of the bearing end and the working surface. Afterwards, the operator positions the positioning structure, with the bearing end face of the positioning structure fitting against the working surface. The recessed portion accommodates the non-measuring section of the sample that does not require measurement, and the accommodating end face abuts against the end face of the sample's measuring section near the working surface. This allows the measuring structure to measure the overall height of the positioning structure and the sample. Subtracting the height of the positioning structure from the overall height of the positioning structure and the sample yields the sample thickness. This reduces manual operation by the operator, improves the efficiency of sample measurement, and reduces the error in measuring sample thickness. Consequently, it solves the problem of poor efficiency in measuring sample thickness using a rotational rheometer in existing technologies.

[0065] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0066] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0067] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A measuring device, characterized in that, include: The base (10) has a working surface (121); A positioning structure (20) is movably disposed on the working surface (121). The positioning structure (20) has a bearing end (211) and a receiving end (22). The receiving end (22) has a receiving recess (221). A measuring structure (30) is mounted on the base (10); The positioning structure (20) has a reference state and a positioning state. When the positioning structure (20) is in the reference state, the end face of the receiving end (22) is in contact with the working surface (121). The measuring structure (30) measures the height between the end face of the bearing end (211) and the working surface (121). When the positioning structure (20) is in the positioning state, the end face of the bearing end (211) is in contact with the working surface (121), the receiving recess (221) receives the non-measuring segment (101) of the measuring piece (1), the end face of the receiving end (22) is in contact with the end face of the measuring segment (102) of the measuring piece (1) near the working surface (121), and the measuring structure (30) measures the height between the end face of the measuring segment (102) away from the working surface (121) and the working surface (121).

2. The measuring device according to claim 1, characterized in that, The measuring structure (30) includes a measuring part (31), which is positionally adjustable to abut against the end face of the measuring part (31) away from the working surface (121) or against the end face of the bearing end (211).

3. The measuring device according to claim 2, characterized in that, The base (10) also includes a base plate (11) and a support structure (12), the support structure (12) is disposed on the base plate (11) and located below the measuring part (31), and the support structure (12) has the working surface (121).

4. The measuring device according to claim 3, characterized in that, The measuring device further includes a support structure (40) disposed on the base plate (11), the support structure (40) having a receiving recess (43), at least a portion of the measuring part (31) being movably disposed within the receiving recess (43).

5. The measuring device according to claim 4, characterized in that, The measuring structure (30) further includes a display unit (32), which is disposed on the support structure (40); wherein the measuring unit (31) is connected to the display unit (32) so that the display unit (32) displays the measurement value of the measuring unit (31).

6. The measuring device according to claim 5, characterized in that, The support structure (40) includes: A support part (41) is provided on the base plate (11); A connecting portion (42) is disposed on the support portion (41), the connecting portion (42) includes at least two oppositely disposed receiving members (421), and the receiving recess (43) is formed between the at least two receiving members (421).

7. The measuring device according to claim 6, characterized in that, The display unit (32) has a mounting member (321) with a through hole for the measuring unit (31) to pass through. The measuring device further includes: A locking structure (50) passes through at least two opposing receiving members (421) to adjust the size of the receiving recess (43) so that the sidewall of the receiving recess (43) fits against the outer peripheral surface of the mounting member (321).

8. The measuring device according to claim 6, characterized in that, The support portion (41) includes a first support section (411) and a second support section (412) connected to each other. The end of the first support section (411) away from the second support section (412) is connected to the base plate (11), and the end of the second support section (412) away from the first support section (411) is connected to the connecting portion (42). The first support section (411) and the second support section (412) are arranged at an angle.

9. The measuring device according to claim 6, characterized in that, The measuring device also includes an illumination structure disposed on one end of the connecting part (42) near the working surface (121) to illuminate the working surface (121).

10. The measuring device according to claim 1, characterized in that, The positioning structure (20) includes a support portion (21) having a support end (211); wherein the support portion (21) is metal, such that the end face of the support end (211) is a plane.

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