Measuring device

Abstract

The embodiment of the invention provides a measuring device, and relates to the technical field of mechanical measurement. The measuring device is characterized in that a magnetic base is fixedly connected with a connecting plate, a depth gauge is slidably connected with the connecting plate, and the depth gauge is perpendicular to the connecting plate; the depth gauge is provided with a gauge body measuring end. The magnetic base is used for being placed on the end face of a wheel hub hole, the connecting plate is used for connecting the magnetic base and the depth gauge, and the depth gauge is used for placing the measuring end of the gauge body on the inner side face of a wheel rim and displaying the height difference value between the end face of the wheel hub hole and the inner side face of the wheel rim. According to the measuring device, an accurate measuring reference is established through stable adsorption and fixation of the magnetic base and the wheel hub hole end face, automatic vertical positioning of the reference surface and the measuring surface in the measuring process is achieved through cooperation of the depth ruler perpendicular to the connecting plate and a sliding connection structure of the depth ruler, posture deviation caused by manual holding of a steel plate ruler is eliminated, and the measuring accuracy is improved. The accuracy of measuring the height difference between the end face of the wheel hub hole and the inner side face of the wheel rim is improved.

Description

Technical Field

[0001] This application relates to the technical field of mechanical measurement, and particularly to a measuring device. Background Art

[0002] During the manufacturing process of wheels, the height difference between the end face of the hub hole and the inner side face of the wheel rim is a key parameter affecting the installation accuracy of the wheel. This parameter directly determines the mating state between the wheel and the axle. If there are deviations, it will cause problems such as incorrect wheel installation and imbalance of dynamic balance, thus affecting the driving safety of the vehicle. To effectively control this parameter, a reliable measurement method needs to be established first.

[0003] In the prior art, a method of measuring with two steel rulers is used to measure the height difference between the end face of the wheel hub hole and the inner side face of the wheel rim. During operation, a large-range steel ruler is vertically abutted against the end face of the wheel hub hole as a reference, and at the same time, a small-range steel ruler is vertically abutted against the inner side face of the wheel rim. The height dimension between the end face of the hub hole and the inner side face of the rim is obtained by reading the relative position difference between the two steel rulers. This measurement method requires the operator to simultaneously control the vertical states of the two steel rulers and determine the measurement value by visually observing the relative position relationship between the two rulers.

[0004] However, the prior art has the problem of low measurement accuracy. In the prior art, it is necessary to manually maintain the vertical states of the two rulers at the same time. During the manual operation process, it is extremely easy for the steel rulers to tilt, resulting in the loss of the measurement reference, and relying on the operator's experience to judge the reading, making the measurement result have a large error and it is difficult to ensure the accuracy of the measurement data. Summary of the Invention

[0005] An embodiment of this application provides a measuring device to solve the problem of low measurement accuracy of the height difference between the end face of the hub hole and the inner side face of the wheel rim.

[0006] In a first aspect, an embodiment of this application provides a measuring device, which includes: a magnetic base, a connecting plate, and a depth gauge;

[0007] The magnetic base is fixedly connected to the connecting plate, the depth gauge is slidably connected to the connecting plate, and the depth gauge is perpendicular to the connecting plate;

[0008] A measuring end of the gauge body is provided on the depth gauge;

[0009] The magnetic base is used to be placed on the end face of the wheel hub hole, the connecting plate is used to connect the magnetic base and the depth gauge, and the depth gauge is used to place the measuring end of the gauge body on the inner side face of the wheel rim and display the height difference between the end face of the wheel hub hole and the inner side face of the wheel rim.

[0010] In a possible design, the magnetic base is a cuboid, and a working surface and a placement surface are provided on the magnetic base. The working surface refers to the surface of the magnetic base that is fixedly connected to the connecting plate, and the placement surface refers to the surface of the magnetic base that contacts the end face of the wheel hub hole. The working surface is perpendicular to the placement surface.

[0011] In a possible design, the working surface is fixedly connected to the connecting plate by welding.

[0012] In a possible design, the depth gauge includes: a clamp and a scale body;

[0013] The clamp is fixedly connected to the connecting plate, and the scale body is slidably connected to the clamp;

[0014] The measuring end of the scale body is provided on the scale body.

[0015] In a possible design, the clamp is fixedly connected to the connecting plate by bolts.

[0016] In a possible design, a locking mechanism is provided on the clamp, and the locking mechanism is used to fix the scale body when the measuring end of the scale body is placed on the inner side surface of the wheel flange.

[0017] In a possible design, a wear-resistant layer is provided on the measuring end of the scale body, and the wear-resistant layer is used to reduce the friction between the measuring end of the scale body and the inner side surface of the wheel flange.

[0018] In a possible design, the measuring end of the scale body is fixedly connected to the scale body by a threaded connection.

[0019] In a possible design, a switch is provided on the magnetic base, and the switch is used to control the on-off of the magnetic force of the magnetic base.

[0020] In a possible design, a groove is provided on the connecting plate, and the groove is used to reduce the weight of the connecting plate.

[0021] The present application provides a measuring device, which includes: a magnetic base, a connecting plate and a depth gauge; the magnetic base is fixedly connected to the connecting plate, the depth gauge is slidably connected to the connecting plate, and the depth gauge is perpendicular to the connecting plate; a body measuring end is provided on the depth gauge; the magnetic base is used to be placed on the end face of the wheel hub hole, the connecting plate is used to connect the magnetic base and the depth gauge, and the depth gauge is used to place the body measuring end on the inner side surface of the wheel rim and display the height difference between the end face of the wheel hub hole and the inner side surface of the wheel rim. The measuring device of the present application establishes an accurate measurement reference through the stable adsorption and fixation of the magnetic base on the end face of the wheel hub hole, and cooperates with the depth gauge perpendicular to the connecting plate and its sliding connection structure to realize the automatic vertical positioning of the reference plane and the measuring plane during the measurement process, eliminating the posture deviation caused by manually holding the steel ruler. This device converts the double-ruler measurement that originally required two hands to operate into a mechanical measurement, and directly outputs the height difference through the digital display of the depth gauge, solving the problem of low measurement accuracy caused by manual intervention in the prior art and improving the accuracy of measuring the height difference between the end face of the wheel hub hole and the inner side surface of the wheel rim. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application and used together with the specification to explain the principles of the present application.

[0023] Figure 1 is a schematic structural view of the measuring device provided by an embodiment of the present application Figure 1 ;

[0024] Figure 2 is a schematic structural view of the measuring device provided by an embodiment of the present application Figure 2 。

[0025] Description of the reference numerals:

[0026] 100 - magnetic base;

[0027] 101 - switch;

[0028] 200 - connecting plate;

[0029] 201 - groove;

[0030] 300 - depth gauge;

[0031] 301 - body measuring end;

[0032] 302 - clamp;

[0033] 3021 - locking mechanism;

[0034] 303 - body of the ruler;

[0035] 304 - Bolt.

[0036] Through the above - mentioned drawings, specific embodiments of the present application have been shown, and there will be a more detailed description hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed Description of the Embodiments

[0037] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0038] It should be noted that "when... " in the embodiments of the present application can be at the instant when a certain situation occurs or within a period of time after a certain situation occurs. The embodiments of the present application do not make specific limitations on this. In addition, a measuring device provided in the embodiments of the present application is only an example, and a measuring device may also include more or less content.

[0039] For the convenience of clearly describing the technical solutions of the embodiments of the present application, hereinafter, some terms and technologies involved in the embodiments of the present application are briefly introduced:

[0040] Magnetic base: It is a supporting device with magnetic function, usually used to fix and stabilize other components or tools. It adsorbs on the metal surface through magnetism, thereby providing firm support and positioning, and is widely used in occasions that require temporary fixation, such as in machining, measurement, and assembly processes. The design of the magnetic base can include a switch to control the on - off of the magnetism for easy installation and disassembly.

[0041] Wheel hub hole: It is a circular opening at the center of the wheel, designed to be installed on the vehicle's wheel hub. Its size and shape match the bearings or axles of the wheel hub to ensure that the wheel can be firmly fixed on the vehicle. The accuracy of the wheel hub hole is crucial for the balance of the wheel and the overall driving performance of the vehicle because it directly affects the installation position and stability of the wheel.

[0042] Wheel hub hole end face: It refers to the outer edge surface of the central hole of the wheel hub, which is usually the part that directly contacts the axle or other connecting components. This end face plays a key role in positioning and supporting during the wheel installation process, ensuring that the wheel can be correctly installed on the vehicle and maintain stable rotation.

[0043] Wheel Rim: It is the outer edge part of the wheel, usually a part of the rim, which is used to support and fix the tire. The design of the rim ensures that the tire can be firmly installed on the wheel and remain stable during vehicle driving. The shape and size of the rim are crucial for the correct installation of the tire and the overall performance of the vehicle, as it affects the airtightness of the tire and the balance of the wheel.

[0044] Inner Side Surface of Wheel Rim: It refers to the inner surface of the wheel edge, usually located in the inner part of the rim, adjacent to the inner sidewall of the tire. This surface plays a role in supporting and sealing during the tire installation process, ensuring that the tire can be correctly fixed on the wheel and maintain airtightness. The design and condition of the inner side surface of the wheel rim are crucial for the stability of the tire and the driving safety of the vehicle.

[0045] Here, exemplary embodiments will be described in detail, and their examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0046] The technical solution of the present invention will be described in detail below with specific embodiments. These several specific embodiments below can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present invention will be described below in conjunction with the drawings.

[0047] To clearly understand the technical solution of the present application, the solutions of the prior art will be introduced in detail first. In the prior art, a method of measuring the height difference between the end face of the wheel hub hole and the inner side surface of the wheel rim by using a double steel ruler for measurement is adopted. During operation, a large-range steel ruler is vertically abutted against the end face of the wheel hub hole as a reference, and at the same time, a small-range steel ruler is vertically abutted against the inner side surface of the wheel rim. The height dimension between the end face of the hub hole and the inner side surface of the rim is obtained by reading the relative position difference between the two steel rulers. This measurement method requires the operator to simultaneously control the vertical states of the two steel rulers and determine the measurement value by visually observing the relative position relationship between the two rulers.

[0048] However, the prior art has the problem of low measurement accuracy. In the prior art, it is necessary for the operator to simultaneously keep the two rulers vertical. During the manual operation process, it is extremely easy for the steel ruler to tilt, resulting in the loss of the measurement reference, and relying on the operator's experience to judge the reading, making the measurement result have a large error and it is difficult to ensure the accuracy of the measurement data.

[0049] Therefore, in view of the problem of low measurement accuracy in the prior art, it is found in the research that to solve this problem, a device with a fixed reference and a sliding measurement function can be designed to reduce human operation errors and improve measurement accuracy: ① A magnetic fixing mechanism can be used as the measurement reference platform, the measurement component is rigidly connected to the reference platform, the consistency of the measurement direction is ensured through a vertical guiding structure, and the instability caused by manual holding is eliminated through a physical connection method. ② On the basis of the fixed reference, a precisely adjustable measurement component can be set, including a sliding guiding mechanism and a locking device. During measurement, the probe can be ensured to be in full contact with the surface to be measured through fine adjustment, and the measurement state can be maintained through mechanical locking to avoid position movement during the measurement process. ③ Special wear-resistant materials or replaceable probe designs can be adopted at the measurement contact end to reduce the wear effect during long-term use. By optimizing the material and shape of the contact surface, both the contact reliability during measurement and the service life of key components are ensured, and long-term measurement accuracy is maintained.

[0050] Specifically:

[0051] An improved measurement device can be designed, including a fixed base for stable positioning and an integrated measurement system. The device firmly fixes the base on the object to be measured magnetically or mechanically to provide a stable measurement reference. The integrated measurement system can obtain measurement data through sensors and display the measurement results to reduce human reading errors. The device is also equipped with a locking mechanism to ensure the stability of the measurement components during operation and further improve the accuracy and reliability of the measurement.

[0052] A measurement device according to an embodiment of the present application establishes an accurate measurement reference through the stable adsorption and fixation of a magnetic base on the end face of the wheel hub hole, and cooperates with a depth gauge perpendicular to the connecting plate and its sliding connection structure to achieve automatic vertical positioning of the reference plane and the measurement plane during the measurement process, eliminating the attitude deviation caused by manually holding a steel ruler. The device converts the double-scale measurement that originally required two hands to operate into a mechanical measurement, and directly outputs the height difference through the digital display of the depth gauge, solving the problem of low measurement accuracy caused by manual intervention in the prior art and improving the accuracy of measuring the height difference between the end face of the wheel hub hole and the inner side of the wheel rim.

[0053] Based on the above creative findings, the technical solution of the present application is proposed.

[0054] The embodiments of the present application will be introduced below with reference to the accompanying drawings of the specification.

[0055] Figure 1 Structural schematic of the measurement device provided by the embodiment of the present application Figure 1 . As Figure 1 shown, in this embodiment, the measurement device includes: a magnetic base 100, a connecting plate 200, and a depth gauge 300.

[0056] Specifically, the magnetic base 100 is used to be stably placed on the end face of the wheel hub hole, providing a fixed reference point. The connecting plate 200 is used to connect the magnetic base 100 and the depth gauge 300 together, ensuring that the depth gauge can slide in a direction perpendicular to the connecting plate 200. The measuring end 301 of the body of the depth gauge 300 can be placed on the inner side surface of the wheel rim. By sliding measurement, the depth gauge 300 can display the height difference between the end face of the wheel hub hole and the inner side surface of the wheel rim.

[0057] The magnetic base 100 is fixedly connected to the connecting plate 200, the depth gauge 300 is slidably connected to the connecting plate 200, and the depth gauge 300 is perpendicular to the connecting plate 200.

[0058] Specifically, the magnetic base 100 can be fixedly connected to the connecting plate 200 by mechanical fasteners or welding, etc., to ensure the stability of the whole device during the measurement process. The depth gauge 300 can be slidably connected to the connecting plate 200 through a chute or a guide rail mechanism, enabling it to move freely in a direction perpendicular to the connecting plate 200. The design that the depth gauge 300 is perpendicular to the connecting plate 200 ensures the accuracy and reliability of the measurement. Such a structural design is used to accurately place the measuring end 301 of the body of the depth gauge 300 on the inner side surface of the wheel rim during the measurement process, so as to accurately measure the height difference between the end face of the wheel hub hole and the inner side surface of the wheel rim.

[0059] The depth gauge 300 is provided with a measuring end 301 of the body.

[0060] Specifically, the depth gauge 300 is provided with a measuring end 301 of the body, which can be realized by designing a special measuring component at the end of the depth gauge. The measuring end 301 of the body is usually a flat or pointed structure, which can precisely contact the inner side surface of the wheel rim. This design is used to ensure that the depth gauge 300 can accurately contact the inner side surface of the wheel rim during the measurement process, thus providing an accurate measurement reference.

[0061] The magnetic base 100 is used to be placed on the end face of the wheel hub hole, the connecting plate 200 is used to connect the magnetic base 100 and the depth gauge 300, and the depth gauge 300 is used to place the measuring end 301 of the body on the inner side surface of the wheel rim and display the height difference between the end face of the wheel hub hole and the inner side surface of the wheel rim.

[0062] Specifically, the magnetic base 100 is firmly attached to the end face of the wheel hub hole through its magnetic properties, providing a stable reference position. The connecting plate 200 is used to connect the magnetic base 100 and the depth gauge 300, ensuring that the depth gauge 300 can slide in a direction perpendicular to the connecting plate 200. The depth gauge 300 is designed to slide along the connecting plate 200 and the inner side of the wheel rim is contacted by the measuring end 301 of the gauge body. With this structure, the depth gauge 300 can measure and display the height difference between the end face of the wheel hub hole and the inner side of the wheel rim.

[0063] A measuring device provided in this embodiment includes a magnetic base, a connecting plate and a depth gauge; the magnetic base is fixedly connected to the connecting plate, the depth gauge is slidably connected to the connecting plate, and the depth gauge is perpendicular to the connecting plate; a measuring end of the gauge body is provided on the depth gauge; the magnetic base is used to be placed on the end face of the wheel hub hole, the connecting plate is used to connect the magnetic base and the depth gauge, and the depth gauge is used to place the measuring end of the gauge body on the inner side of the wheel rim and display the height difference between the end face of the wheel hub hole and the inner side of the wheel rim. A measuring device achieves the following technical effects: an accurate measurement reference is established through the stable adsorption and fixation of the magnetic base and the end face of the wheel hub hole. With the depth gauge perpendicular to the connecting plate and its sliding connection structure, automatic perpendicular positioning of the reference plane and the measuring plane during the measurement process is realized, eliminating the attitude deviation caused by manually holding the steel ruler. This device converts the double-ruler measurement that originally required two hands to operate into a mechanical measurement, and directly outputs the height difference through the digital display of the depth gauge, solving the problem of low measurement accuracy caused by manual intervention in the prior art.

[0064] Figure 2 is a schematic structure of the measuring device provided by the embodiment of the present application Figure 2 . As Figure 2 shown, on the basis of the Figure 1 embodiment, the measuring device is described in detail.

[0065] The magnetic base 100 is a cuboid. A working surface and a placement surface are provided on the magnetic base 100. The working surface refers to the surface of the magnetic base 100 that is fixedly connected to the connecting plate 200, and the placement surface refers to the surface of the magnetic base 100 that contacts the end face of the wheel hub hole. The working surface is perpendicular to the placement surface.

[0066] Specifically, the magnetic base 100 is designed in the shape of a cuboid, which can provide a stable support structure. The magnetic base 100 is provided with a working surface and a placement surface. The working surface refers to the surface fixedly connected to the connecting plate 200, and the fixed connection is achieved by mechanical fasteners or welding, etc., to ensure the structural stability of the entire device. The placement surface is the surface that contacts the end face of the wheel hub hole and is firmly attached to the end face of the wheel hub hole through its magnetic properties. The design that the working surface is perpendicular to the placement surface ensures that the connecting plate 200 and the depth gauge 300 can be perpendicular to the end face of the wheel hub hole, thereby achieving accurate measurement.

[0067] The technical effect of this embodiment is that the magnetic base is set as a cuboid and has a working surface and a placement surface, and the working surface is perpendicular to the placement surface. Such a design ensures that the magnetic base can be stably placed on the end face of the wheel hub hole, and at the same time provides a reliable reference surface through the fixed connection between the working surface and the connecting plate. This structural design helps to improve the stability and measurement accuracy of the measuring device and reduce measurement errors caused by the inclination or movement of the magnetic base.

[0068] In a possible design, the working surface is fixedly connected to the connecting plate 200 by welding.

[0069] Specifically, welding can be performed in the contact area between the working surface of the magnetic base 100 and the connecting plate 200. Welding provides a firm and lasting connection method to ensure that there is no loosening or displacement between the connecting plate 200 and the magnetic base 100 during use. Through this fixed connection, the entire measuring device can maintain the structural stability, especially when it is necessary to keep the depth gauge 300 perpendicular to the end face of the wheel hub hole during the measurement process. This design is used to ensure that the measuring device can provide reliable measurement results in practical applications and help users to perform accurate detection.

[0070] The technical effect of this embodiment is that the working surface of the magnetic base is fixedly connected to the connecting plate by welding. This fixed method provides a connection with high strength and strong stability, ensuring that there is no relative movement or loosening between the magnetic base and the connecting plate during use. This firm connection method helps to maintain the consistency of the measurement reference, reduces measurement errors caused by unstable connection, and improves the accuracy of the measuring device.

[0071] In a possible design, the depth gauge 300 includes: a clamp 302 and a ruler body 303.

[0072] Specifically, the depth gauge 300 consists of a fixture 302 and a gauge body 303. The fixture 302 can be fixedly connected to the connecting plate 200 through mechanical fasteners or other fixing means, providing a stable support structure. The gauge body 303 is slidably connected to the fixture 302, usually achieved through a chute or guide rail mechanism, which allows the gauge body 303 to move freely in the vertical direction. The measuring end 301 of the gauge body is located at the end of the gauge body 303 and is used to contact the inner side of the wheel rim.

[0073] The fixture 302 is fixedly connected to the connecting plate 200, and the gauge body 303 is slidably connected to the fixture 302.

[0074] Specifically, the fixture 302 is fixedly connected to the connecting plate 200, which is usually achieved through mechanical fastening means such as screws, bolts or welding to ensure that the fixture 302 remains stable and does not shift during use. The gauge body 303 is slidably connected to the fixture 302, usually achieved by designing a chute or guide rail structure on the fixture 302, which allows the gauge body 303 to move freely in a specific direction within the fixture 302. Such a design enables the gauge body 303 to accurately adjust its position during the measurement process so that the measuring end 301 of the gauge body can accurately contact the inner side of the wheel rim, thereby measuring the height difference between the end face of the wheel hub hole and the inner side of the wheel rim.

[0075] The measuring end 301 of the gauge body is provided on the gauge body 303.

[0076] Specifically, the measuring end 301 of the gauge body is provided on the gauge body 303, which is usually achieved by designing a special measuring component at the end of the gauge body 303. The measuring end 301 of the gauge body can be a flat surface, a tip or other suitable shapes for measurement to ensure that it can accurately contact the inner side of the wheel rim. This design is used to provide an accurate contact point during the measurement process, enabling the depth gauge 300 to measure the height difference between the end face of the wheel hub hole and the inner side of the wheel rim.

[0077] The technical effect of this embodiment is that the fixed connection between the fixture and the connecting plate provides a stable support structure, while the sliding connection between the gauge body and the fixture allows the gauge body to freely adjust its position during the measurement process. Such a design enables the measuring end of the gauge body to accurately contact the inner side of the wheel rim, thereby accurately measuring the height difference between the end face of the wheel hub hole and the inner side of the wheel rim. The combination of the stability of the overall structure and the flexibility of the measurement improves the reliability and applicability of the measuring device and meets the requirements of precise measurement.

[0078] In a possible design, the fixture 302 is fixedly connected to the connecting plate 200 through bolts 304.

[0079] Specifically, corresponding bolt holes can be pre-designed on the fixture 302 and the connecting plate 200. The bolt 304 passes through these holes and is fastened by a nut or thread, firmly fixing the fixture 302 on the connecting plate 200. Such a connection method provides reliable mechanical fixation, ensuring that the fixture 302 does not shift or loosen during use. This design is used to provide a stable support structure, enabling the depth gauge 300 to maintain an accurate vertical position during measurement, thereby ensuring the accuracy and reliability of the measurement.

[0080] The technical effect of this embodiment is that the fixture is fixedly connected to the connecting plate by bolts. This connection method provides reliable and detachable fixation, enabling the fixture to firmly adhere to the connecting plate while allowing disassembly and adjustment when needed. The flexibility of the bolt connection not only enhances the overall stability and durability of the device but also facilitates maintenance and component replacement.

[0081] In a possible design, a locking mechanism 3021 is provided on the fixture 302. The locking mechanism 3021 is used to fix the measuring body 303 when the measuring end 301 of the measuring body is placed on the inner side surface of the wheel rim.

[0082] Specifically, an operable locking device such as a knob, lever, or screw locking device can be integrated on the fixture 302. The locking mechanism 3021 is used to lock the position of the measuring body 303 when the measuring end 301 of the measuring body is accurately placed on the inner side surface of the wheel rim, preventing it from moving during measurement. By fixing the measuring body 303, the locking mechanism 3021 ensures the stability and accuracy of the measurement results, avoiding measurement errors caused by the sliding of the measuring body.

[0083] The technical effect of this embodiment is that a locking mechanism is provided on the fixture, and the locking mechanism is used to fix the measuring body when the measuring end of the measuring body is placed on the inner side surface of the wheel rim. This design provides a firm lock for the measuring body during measurement, preventing the measuring body from sliding or displacing during measurement, thereby ensuring the accuracy of the measurement results.

[0084] In a possible design, a wear-resistant layer is provided on the measuring end 301 of the measuring body. The wear-resistant layer is used to reduce the friction between the measuring end 301 of the measuring body and the inner side surface of the wheel rim.

[0085] Specifically, a wear-resistant material such as polytetrafluoroethylene, cemented carbide, or other high-wear-resistant polymers can be coated or adhered to the surface of the measuring end of the measuring body. The wear-resistant layer is designed to reduce the friction between the measuring end of the measuring body and the inner side surface of the wheel rim, thereby reducing wear and extending the service life of the measuring device. In addition, the wear-resistant layer can also improve the smoothness and accuracy of the measurement, ensuring consistent contact conditions during multiple measurements.

[0086] The technical effects of this embodiment are as follows: A wear-resistant layer is provided on the measuring end of the scale body, and the wear-resistant layer is used to reduce the friction between the measuring end of the scale body and the inner side surface of the wheel rim. This design effectively protects the measuring end of the scale body from wear during frequent use and extends its service life. At the same time, the application of the wear-resistant layer reduces the potential impact of friction on the measurement accuracy during the measurement process and ensures the stability of the measurement results.

[0087] In a possible design, the measuring end 301 of the scale body is fixedly connected to the scale body 303 by a threaded connection.

[0088] Specifically, an internal threaded hole can be designed at the end of the scale body 303, and a corresponding external thread can be designed on the measuring end 301 of the scale body to achieve a threaded connection. By rotating the measuring end 301 of the scale body, it can be firmly screwed into the threaded hole of the scale body 303 to achieve a reliable mechanical connection. This threaded connection method allows for convenient replacement or adjustment of the measuring end 301 of the scale body when needed, providing flexibility and maintainability. In addition, this connection method ensures that the measuring end will not loosen during use, thus maintaining the stability and accuracy of the measurement.

[0089] The technical effects of this embodiment are as follows: By fixedly connecting the measuring end of the scale body to the scale body through a threaded connection, this threaded connection provides a reliable and adjustable fixing method, enabling the measuring end of the scale body to be firmly attached to the scale body while allowing for disassembly and replacement as needed. The design of the threaded connection not only enhances the structural stability of the measuring device but also provides flexibility for fine adjustment and maintenance.

[0090] In a possible design, a switch 101 is provided above the magnetic base 100, and the switch 101 is used to control the on / off of the magnetic force of the magnetic base 100.

[0091] Specifically, an electromagnet can be integrated inside the magnetic base 100, and an electric control switch 101 can be installed on its exterior. The switch 101 can be a simple mechanical switch or an electronic switch, connected to the power supply circuit of the electromagnet. When the switch 101 is turned on, current passes through the electromagnet, generating a magnetic field that enables the magnetic base 100 to adsorb on the end face of the wheel hub hole; when the switch 101 is turned off, the current is cut off and the magnetic field disappears, allowing the magnetic base 100 to be easily removed.

[0092] The technical effects of this embodiment are as follows: A switch is provided on the magnetic base to control the on / off of the magnetic force. This design allows the operator to enable or disable the magnetic force of the magnetic base as needed, thereby achieving quick fixation or release of the measuring device. By controlling the magnetic force with the switch, the use of the device becomes more flexible and convenient, especially in cases where frequent movement or position adjustment is required, which can improve the operation efficiency and prevent accidental adsorption when the magnetic force is not needed.

[0093] In a possible design, a groove 201 is provided on the connecting plate 200, and the groove 201 is used to reduce the weight of the connecting plate 200.

[0094] Specifically, during the design and manufacturing process of the connecting plate, a part of the material can be removed from its surface or inside to obtain the groove 201. The groove 201 can be processed by processes such as milling, stamping, or die forming, and is usually in a long strip shape or other suitable shapes, so as to reduce the overall material usage of the connecting plate 200 without affecting its structural strength and stability.

[0095] The technical effect of this embodiment is that by providing a groove on the connecting plate, the weight of the connecting plate is effectively reduced. This design not only reduces the overall weight of the measuring device, making it more portable and easier to operate, but also may reduce the material usage, thereby reducing the manufacturing cost. Despite the weight reduction, the design and position of the groove are optimized to ensure that the structural strength and stability of the connecting plate are not significantly affected. Therefore, while maintaining the function and durability of the device, this design improves its economy and the user experience.

[0096] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A measuring device, characterized in that: include: A magnetic base (100), a connecting plate (200) and a depth gauge (300); The magnetic base (100) is fixedly connected to the connecting plate (200), the depth gauge (300) is slidably connected to the connecting plate (200), and the depth gauge (300) is perpendicular to the connecting plate (200); The depth gauge (300) is provided with a gauge body measuring end (301); The magnetic base (100) is used to be placed on the end face of a wheel hub hole, the connecting plate (200) is used to connect the magnetic base (100) and the depth gauge (300), and the depth gauge (300) is used to place the ruler body measuring end (301) on the inner side of the wheel rim and display the height difference between the end face of the wheel hub hole and the inner side of the wheel rim.

2. The measuring device according to claim 1, characterized in that The magnetic base (100) is a rectangular parallelepiped, and is provided with a working surface and a placement surface, wherein the working surface refers to a surface on the magnetic base (100) that is fixedly connected to the connecting plate (200), and the placement surface refers to a surface on the magnetic base (100) that contacts an end surface of the wheel hub hole, and the working surface is perpendicular to the placement surface.

3. The measuring device according to claim 2, characterized in that The working surface is fixedly connected to the connecting plate (200) by welding.

4. The measuring device according to claim 1, characterized in that The depth gauge (300) comprises: a clamp (302) and a gauge body (303); The clamp (302) is fixedly connected to the connecting plate (200), and the ruler body (303) is slidably connected to the clamp (302); The ruler body measuring end (301) is arranged on the ruler body (303).

5. The measuring device according to claim 4, characterized in that The clamp (302) is fixedly connected to the connecting plate (200) via bolts (304).

6. The measuring device according to claim 4, characterized in that The clamp (302) is provided with a locking mechanism (3021), and the locking mechanism (3021) is used to fix the ruler (303) when the ruler measuring end (301) is placed on the inner side of the wheel rim.

7. The measuring device according to claim 4, characterized in that A wear-resistant layer is provided on the ruler body measuring end (301), and the wear-resistant layer is used to reduce friction between the ruler body measuring end (301) and the inner side surface of the wheel rim.

8. The measuring device according to claim 4, characterized in that The ruler body measuring end (301) is fixedly connected to the ruler body (303) by means of a threaded connection.

9. The measuring device according to claim 1, characterized in that The magnetic base (100) is provided with a switch (101), and the switch (101) is used to control the magnetic force of the magnetic base (100) to be turned on and off.

10. The measuring device according to claim 1, characterized in that The connecting plate (200) is provided with a groove (201), and the groove (201) is used to reduce the weight of the connecting plate (200).

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