Digital display intelligent communication lever ruler

Abstract

The embodiment of the utility model provides a digital display intelligent communication lever ruler which comprises a ruler frame, a differential rod, a movable measuring rod, a measuring assembly and a communication assembly. The movable measuring rod is slidably installed on the ruler frame along the axis direction of the differential rod. The measuring assembly comprises a processor and a detection unit, the detection unit is used for detecting the displacement of the movable measuring rod, converting a detection result into an electric signal and sending the electric signal to the processor, and the processor converts the electric signal into a measuring result; the processor can send the measurement result to the terminal through the communication assembly. According to the digital display intelligent communication lever ruler provided by the embodiment of the utility model, manual reading can be replaced, and the measurement precision is also improved compared with manual reading. Besides, in the large-batch measurement process, measurement can be rapidly, efficiently and accurately carried out, time cost can be saved, and the problems that in the prior art, measured values need to be manually recorded or input into a computer, batch data processing and management cannot be carried out, and industrial digital development requirements are difficult to meet are solved.

Description

Technical Field

[0001] The utility model relates to the field of measuring instruments, in particular to a digital display intelligent communication lever ruler. Background Art

[0002] With the progress of industrial production and scientific research, the requirements for measurement accuracy are getting higher and higher. Traditional measuring tools are often difficult to meet the needs of high-precision measurement. Therefore, it is necessary to develop more accurate and stable measuring tools. Micrometer came into being in this context. It realizes the accurate reading of the distance between the two measuring surfaces on the arc scale frame, greatly improving the measurement accuracy.

[0003] The precision machining industry has extremely strict requirements for measuring tools. In situations where high precision is required, such as shaft dimension detection, a tool that can meet the precision requirements and can measure quickly and easily is needed. The micrometer not only has high reading accuracy, but also has a large rigidity of the bow frame, which ensures the stability and accuracy of the measurement.

[0004] However, the micrometer in the prior art has obvious deficiencies in data processing and management. Its measured values ​​still need to be recorded manually or entered into a computer, and efficient batch data processing and management cannot be performed, which seriously restricts its application in the development of industrial digitalization. Utility Model Content

[0005] In view of this, the purpose of the utility model is to overcome the deficiencies in the prior art and provide a digital display intelligent communication lever ruler.

[0006] The utility model provides the following technical solutions:

[0007] The utility model provides a digital display intelligent communication lever ruler, including a ruler frame, a differential rod, a movable measuring rod, a measuring assembly and a communication assembly. The differential rod is threadedly matched with the ruler frame; the movable measuring rod is slidably mounted on the ruler frame along the axial direction of the differential rod, and the movable measuring rod is coaxially arranged with the differential rod; the measuring assembly includes a processor and a detection unit, the processor is electrically connected to the detection unit, the detection unit is used to detect the displacement of the movable measuring rod and convert the detection result into an electrical signal and send it to the processor, and the processor converts the electrical signal into a measurement result; the communication assembly can establish a communication connection with the terminal, the communication assembly is electrically connected to the processor, and the processor can send the measurement result to the terminal through the communication assembly.

[0008] In one embodiment, the communication component includes a wireless communication unit, and the wireless communication unit is capable of establishing a communication connection with the terminal.

[0009] In one embodiment, the wireless communication unit is one of the following: a Bluetooth communication module, a near field communication module or a wireless radio frequency identification communication module.

[0010] In one embodiment, the communication component includes a communication port, and the communication component can be electrically connected to the terminal through the communication port.

[0011] In one embodiment, the detection unit includes a grating ruler, a laser emitter and a signal detector. The grating ruler is mounted on the movable measuring rod and moves with the movable measuring rod, and the grating ruler can reflect laser light; the laser emitter is mounted on the ruler frame, and the laser emitter can emit laser light to the grating ruler; the signal detector is electrically connected to the processor, and the signal detector is arranged on the ruler frame. The signal detector can detect the laser light reflected by the grating ruler and convert it into an electrical signal and send it to the processor to detect the displacement of the movable measuring rod, and the processor converts the electrical signal of the signal detector into the measurement result of the movable measuring rod.

[0012] In one embodiment, the digital display intelligent communication lever ruler also includes a display screen, which is electrically connected to the processor. The processor can display the measurement results through the display screen, and the display screen is a circular structure or a rectangular structure.

[0013] In one embodiment, the display screen can simulate the display functions of a pointer interface and a digital interface.

[0014] In one embodiment, the digital display intelligent communication lever ruler also includes an elastic member having two ends, which are respectively a first end and a second end. The first end is arranged on the ruler frame, and the second end can push the movable measuring rod to approach the differential rod.

[0015] In one embodiment, the digital display intelligent communication lever ruler also includes a lever and a push handle, the lever has two ends, the two ends of the lever are respectively a third end and a fourth end, the lever is hingedly mounted on the ruler frame, and the hinge point between the lever and the ruler frame is located between the third end and the fourth end, a matching groove is provided on the side of the movable measuring rod close to the lever, the third end contacts the inner wall of the matching groove, and the movable measuring rod pushes the lever to rotate around the hinge point through the inner wall of the matching groove; the push handle is slidably mounted on the ruler frame, and the push handle abuts the fourth end, and the push handle and the elastic member are located on the same side of the lever.

[0016] In one embodiment, the two ends of the push handle are respectively a fifth end and a sixth end, and the sixth end is abutted against the lever; a sliding through hole is provided on the ruler frame, and the push handle is slidably installed in the sliding through hole, and a limit pin is provided on the sixth end along the radial direction of the sixth end, and the limit pin prevents the push handle from sliding out of the sliding through hole.

[0017] The embodiments of the present utility model have the following advantages:

[0018] The digital display intelligent communication lever ruler provided by the embodiment of the utility model can replace manual reading, and the measurement accuracy is also improved compared with manual reading. In addition, in the process of large-scale measurement, it can measure quickly, efficiently and accurately, which can save time and cost, avoid the problem that the measurement values ​​in the prior art need to be manually recorded or entered into a computer, and cannot be processed and managed in batches, which makes it difficult to meet the needs of industrial digital development.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A structural schematic diagram of one perspective of one embodiment of a digital display intelligent communication lever ruler provided by an embodiment of the utility model is shown;

[0022] Figure 2 A schematic structural diagram of two viewing angles of one embodiment of a digital display intelligent communication lever ruler provided by an embodiment of the utility model is shown;

[0023] Figure 3 An exploded view of one embodiment of a digital display intelligent communication lever ruler provided by an embodiment of the utility model is shown;

[0024] Figure 4 A structural schematic diagram showing a perspective of another embodiment of a digital display intelligent communication lever ruler provided by an embodiment of the utility model;

[0025] Figure 5 A structural schematic diagram from one perspective of one embodiment of a push handle and a limit pin of a digital display intelligent communication lever ruler provided by an embodiment of the utility model is shown;

[0026] Figure 6 A structural schematic diagram from one perspective of one embodiment of a partial structure of a digital display intelligent communication lever ruler provided by an embodiment of the utility model is shown.

[0027] Description of main component symbols:

[0028] 100-foot rack;

[0029] 200-detection unit; 210-grating ruler; 220-differential rod; 230-movable measuring rod; 240-matching slot;

[0030] 300-display screen; 310-lever; 320-push handle; 330-limit pin; 340-support rod; 350-locking screw;

[0031] 400-front protective cover; 440-rear protective cover; 480-communication port protective plug. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the template herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0037] The embodiment of the utility model provides a digital display intelligent communication lever ruler for detecting the size of a workpiece; Figure 1 and Figure 3 As shown, the digital display intelligent communication lever ruler includes a ruler frame 100, a differential rod 220, a movable measuring rod 230, a measuring component, a communication component and a power supply component.

[0038] The differential rod 220 is threadedly matched with the ruler frame 100, so that the differential rod 220 can move along the axial direction while rotating. For example, a threaded sleeve is provided on the ruler frame 100, and the differential rod 220 is installed in the threaded sleeve. The differential rod 220 and the ruler frame 100 are threadedly matched through the threaded sleeve. Rotating the differential rod 220 can move the differential rod 220 along the axial direction of the axial threaded sleeve. Figure 1 As shown, a locking screw 350 is provided on the ruler frame 100, and the locking screw 350 is threadedly matched with the ruler frame 100, and the locking screw 350 is arranged on the ruler frame 100 along the radial direction of the differential rod 220. Rotating the locking screw 350 can make the locking screw 350 move along its own axial direction to abut against the differential rod 220, so that the differential rod 220 is locked relative to the ruler frame 100.

[0039] The movable measuring rod 230 is slidably mounted on the ruler frame 100 along the axial direction of the differential rod 220, and the movable measuring rod 230 is coaxially arranged with the differential rod 220. Exemplarily, a sliding sleeve is provided on the ruler frame 100, and a cylindrical sliding through hole is provided on the sliding sleeve along the axial direction, and the cylindrical sliding through hole is coaxial with the differential rod 220, and the movable measuring rod 230 is slidably mounted in the cylindrical sliding through hole, so that the movable measuring rod 230 is coaxial with the differential rod 220.

[0040] The measuring component includes a processor and a detection unit 200, and the power supply component is electrically connected to the processor and the detection unit 200 at the same time, and the power supply component provides power for processing the processor and the detection unit 200. The processor is electrically connected to the detection unit 200, and the detection unit 200 is used to detect the displacement of the movable measuring rod 230 and convert the detection result into an electrical signal and send it to the processor, and the processor converts the electrical signal into a measurement result. Exemplarily, the processor is a controller that can control various data transmissions and processing.

[0041] The communication component can establish a communication connection with the terminal, the communication component is electrically connected to the processor, and the processor can send the measurement result to the terminal through the communication component. Exemplarily, the terminal is a computer or a dedicated data collector or a smart phone.

[0042] The digital display intelligent communication lever ruler provided by the embodiment of the utility model can adjust the differential rod 220 to the reference position before measurement to prepare for subsequent measurement; in the specific use process, it is necessary to put the product to be measured, and in this process, the movable measuring rod 230 will move so that the product to be measured is clamped between the movable measuring rod 230 and the differential rod 220. At this time, the detection unit 200 will collect the displacement information of the movable measuring rod 230 and send the displacement information to the processor. The processor receives the corresponding displacement information, and the processor processes the displacement information into a measurement result and transmits it to the terminal through the communication component, and the measurement result is displayed on the terminal. It can be seen from the above that the digital display intelligent communication lever ruler can replace manual readings, and the measurement accuracy is also improved relative to manual readings. In addition, in the process of large-scale measurement, it can be measured quickly, efficiently and accurately, which can save time and cost, and avoid the problem that the measurement values ​​in the prior art need to be manually recorded or entered into the computer, and batch data processing and management cannot be performed, which is difficult to meet the needs of industrial digital development.

[0043] like Figure 2 and Figure 3 As shown, the ruler frame 100 is also provided with a front protective cover 400 and a rear protective cover 440, and the front protective cover 400 can provide an installation position for the display screen 300. The ruler frame 100 is also provided with a support rod 340, which is vertically or obliquely arranged on the ruler frame 100 and is used to support the workpiece to be measured. The support rod 340 includes a first rod body and a second rod body, the first rod body and the second rod body are threadedly connected, the first rod body is used to support the workpiece to be measured, and the second rod body is installed on the ruler frame 100.

[0044] In one embodiment, the communication component includes a wireless communication unit, which can establish a communication connection with the terminal. The provision of a wireless communication unit greatly enhances the convenience and flexibility of communication between the digital display intelligent communication lever ruler and the terminal of this embodiment. The wireless communication unit not only reduces the constraints of physical connections, making data transmission faster and freer, but also provides users with more usage scenario options. Exemplarily, the wireless communication unit is one of the following: a Bluetooth communication module, a near field communication (NFC) module, a network transmission communication module, or a wireless radio frequency identification (RFID) communication module.

[0045] In one embodiment, the wireless communication unit is Bluetooth, which has the advantages of fast transmission speed, low power consumption, and good compatibility. In another embodiment, the wireless communication unit is near field communication, and near field communication (NFC) technology is suitable for application scenarios of close-range wireless data exchange. In one embodiment, the wireless communication unit is network transmission, and network transmission includes Wi-Fi, 4G / 5G mobile network, etc., to meet the needs of data transmission in a larger range and at a higher speed. In another embodiment, the wireless communication unit is wireless radio frequency identification, and wireless radio frequency identification (RFID) can realize contactless automatic identification and data acquisition.

[0046] like Figure 3 As shown, in one embodiment, the communication component includes a communication port, and the communication port is arranged on the ruler frame 100. The communication component can be electrically connected to the terminal through the communication port, and the terminal is electrically connected to the communication port through a data connection line. The processor can transmit the measurement result to the terminal through the data connection line, and the terminal can store and display the measurement result. Setting the communication port ensures the reliability of data transmission, and also improves the ease of use and convenience of the digital display intelligent communication lever ruler. During use, the user only needs to connect the terminal to the communication port through a data connection line. This connection method is simple and direct, without the need for complex settings. The user only needs to follow the instructions to easily realize the transmission and exchange of data. Exemplarily, the communication port includes a Type C interface, and the Type C communication port can transmit data and charge. The power supply component includes a battery, and the battery can be charged through the set Type C interface. Exemplarily, the battery is a lithium battery.

[0047] The digital display intelligent communication lever ruler provided in the embodiment of the utility model also includes a communication port protection plug 480, which can be inserted into the communication port to prevent dust and oil from entering the communication port. The communication port protection plug 480 must be removed before the communication port is used, and the communication port protection plug 480 is inserted into the communication port after the communication port is used. Before using the communication port, the user needs to remove the communication port protection plug 480 in order to connect to the terminal. After use, the user needs to insert the communication port protection plug 480 into the communication port again to ensure that it is fully protected. That is, the convenience of operation is guaranteed, and the safety and service life of the communication port are fully guaranteed.

[0048] like Figure 6 As shown, in one embodiment, the detection unit 200 includes a grating ruler 210, a laser emitter and a signal detector.

[0049] The grating ruler 210 is mounted on the movable measuring rod 230 and moves with the movable measuring rod 230. The grating ruler 210 can reflect laser. Exemplarily, the grating ruler 210 is glued to the movable measuring rod 230. In another embodiment, the grating ruler 210 is snap-connected to the movable measuring rod 230.

[0050] The laser transmitter is mounted on the scale frame 100 , and the laser transmitter can emit laser light to the grating scale 210 .

[0051] The signal detector is electrically connected to the processor so that the signal detector can send an electrical signal to the processor; the signal detector is arranged on the ruler frame 100, and the signal detector can detect the laser reflected by the grating ruler 210 and convert it into an electrical signal and send it to the processor to detect the displacement of the movable measuring rod 230, and the processor converts the electrical signal of the signal detector into the measurement result of the movable measuring rod 230. Exemplarily, the signal detector is a light sensor, which can efficiently convert the optical signal into an electrical signal and send it to the processor for processing.

[0052] like Figure 1 As shown, in one embodiment, the digital display intelligent communication lever ruler further includes a display screen 300, which serves as an intuitive interface for the user to interact with the digital display intelligent communication lever ruler and can display the measurement results to the user. Exemplarily, the display screen is at least one of the following types: liquid crystal display (LCD), organic light-emitting diode screen (OLED), TN screen (Twisted Nematic, TN), etc.

[0053] The display screen 300 is electrically connected to the processor to realize data transmission, and the processor can display the measurement results through the display screen 300. The processor, as the core control unit of the entire device, is used to receive data from the detection unit 200 and perform a series of calculations and processing. The processor sends the final measurement results to the display screen 300 in the form of an electrical signal. After receiving the electrical signal from the processor, the display screen 300 will quickly convert it into visual digital or graphic information and clearly display it on the screen. The user can intuitively see the measurement results without the need for secondary conversion with the help of other tools or equipment. In addition, the display screen 300 also has the characteristics of high definition and wide viewing angle, ensuring that the user can clearly see the measurement results at different angles and distances. At the same time, its interface design is concise and clear, and easy for users to understand and operate.

[0054] like Figure 1 and Figure 6 As shown, in one embodiment, the display screen 300 can simulate the display functions of the pointer interface and the digital interface, which not only improves the visualization of the measurement, but also provides the user with more diverse viewing options.

[0055] like Figure 1 As shown, when the user selects the digital display mode, the display screen 300 will simulate a digital interface. On this interface, the measurement results are presented in precise digital form, and the user can directly read the specific value without any conversion or calculation. This display method is intuitive and clear, and is particularly suitable for application scenarios that require precise values.

[0056] For example, Figure 1 As shown, the display screen 300 is a circular display screen. The circular display screen can easily simulate the pointer interface, which is convenient for reading, conforms to the user's habits, and has a high degree of user acceptance. The circular display screen can easily simulate the traditional pointer interface, which has been familiar to the majority of users in many occasions. The design of the simulated pointer interface of the circular display screen enables the user to quickly and accurately capture the key information when reading the information on the display screen, without spending extra time to adapt to the new display mode, and the circular display screen has a high degree of integration on the ruler frame, which improves the space utilization of the ruler frame. In another embodiment, the display screen 300 is a rectangular display screen.

[0057] In some cases, users may be more accustomed to the traditional pointer display mode. In order to meet the needs of these users, the display screen 300 also has the function of simulating the pointer interface. Figure 4As shown, when switching to the pointer display mode, the display screen 300 will simulate a pointer interface. On the pointer interface, the pointer will move accordingly according to the measurement result, and the user can judge the measurement result by observing the position of the pointer. In addition, specific values ​​will be displayed on the pointer interface of the display screen 300 at the same time, making the measurement result more intuitive and easy to understand. The pointer interface is suitable for application scenarios where results can be quickly read and compared. The pointer interface and digital interface simulation functions of the display screen 300 not only enrich the display mode of the digital display intelligent communication lever ruler, but also improve the user experience. Users can choose the display mode that suits them best according to their needs and habits, so as to obtain measurement results more conveniently.

[0058] In one embodiment, the digital display intelligent communication lever ruler also includes an elastic member, which can be retracted and rebounded. The elastic member has two ends, which are respectively a first end and a second end. The first end is arranged on the ruler frame 100, and the first end is farther away from the differential rod 220 than the second end. The second end is connected to the movable measuring rod 230. The elastic member can apply a force to the movable measuring rod 230, and the elastic member is extended to push the movable measuring rod 230 to approach the differential rod 220. Exemplarily, the elastic member is a spring or an elastic plate. In another embodiment, the first end is closer to the differential rod 220 than the second end, and the second end is fixedly connected to the movable measuring rod. The shortening of the elastic member can drive the movable measuring rod 230 to approach the differential rod 220.

[0059] As shown Figure 3 and Figure 6 As shown, in one embodiment, the digital display intelligent communication lever ruler and push handle 320 also include a lever 310, the lever 310 has two ends, the two ends of the lever 310 are respectively a third end and a fourth end, the lever 310 is hingedly mounted on the ruler frame 100, and the hinge point of the lever 310 and the ruler frame 100 is located between the third end and the fourth end, so that the lever 310 can rotate around the hinge point within a certain angle range.

[0060] A matching groove 240 is provided on one side of the movable measuring rod 230 close to the lever 310 , and the third end portion contacts the inner wall of the matching groove 240 . The movable measuring rod 230 pushes the lever 310 to rotate around the hinge point through the inner wall of the matching groove 240 .

[0061] like Figure 6 As shown, the push handle 320 is slidably mounted on the ruler frame 100 , and the push handle 320 abuts against the fourth end of the lever 310 , and the push handle 320 and the elastic member are located on the same side of the lever 310 .

[0062] Before using the digital display intelligent communication lever ruler provided by the embodiment of the utility model, it is necessary to put the standard block between the movable measuring rod 230 and the differential rod 220 to reset the value; press the push handle 320 to make the push handle 320 approach the lever 310, and the push handle 320 pushes the lever 310 to rotate in the opposite direction around the hinge point, and the third end of the lever 310 pushes the inner wall of the matching groove on the movable measuring rod 230 to make the movable measuring rod 230 away from the differential rod 220, and the elastic member is compressed at the same time; the space between the movable measuring rod 230 and the differential rod 220 is increased to be able to accommodate the standard block. After the standard block is placed between the movable measuring rod 230 and the differential rod 220, the movable measuring rod 230 and the differential rod 220 clamp the standard block, and the position of the differential rod 220 is fixed by rotating the locking screw 350 so that it remains stationary relative to the ruler frame 100, and the value is reset. Then remove the standard block, and put the workpiece to be measured between the movable measuring rod 230 and the differential rod 220. Under the action of the elastic member, the movable measuring rod 230 moves and clamps the workpiece to be measured between the movable measuring rod 230 and the differential rod 220. At this time, the detection unit 200 collects the displacement of the grating scale 210 (that is, the displacement of the movable measuring rod 230), which is the deviation value. The detection unit 200 sends the detection result to the processor. After receiving the detection result, the processor processes it and converts it into digital information and transmits it to the display screen 300, and then displays the detection result on the display screen 300.

[0063] like Figure 6 As shown, in one embodiment, two ends of the push handle 320 are respectively a fifth end and a sixth end, and the sixth end abuts against the lever 310 .

[0064] The ruler frame 100 is provided with a sliding through hole, and the push handle 320 is slidably installed in the sliding through hole. The size and shape of the sliding through hole match the push handle 320, so that the push handle 320 can slide smoothly inside the sliding through hole. Figure 5 As shown, a limit pin 330 is provided on the sixth end portion in the radial direction along the sixth end portion, and the limit pin 330 prevents the push handle 320 from sliding out of the sliding through hole. The provision of the limit pin 330 not only improves the stability of the operation, but also avoids measurement errors or equipment damage caused by the push handle 320 falling off.

[0065] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.

[0066] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0067] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A digital display intelligent communication lever ruler, characterized in that: include: Ruler rack (100); A differential rod (220), the differential rod (220) being threadably matched with the ruler frame (100); A movable measuring rod (230), the movable measuring rod (230) being slidably mounted on the ruler frame (100) along the axial direction of the differential rod (220), and the movable measuring rod (230) and the differential rod (220) being coaxially arranged; A measuring component, the measuring component comprising a processor and a detection unit (200), the processor being electrically connected to the detection unit (200), the detection unit (200) being used to detect the displacement of the movable measuring rod (230) and convert the detection result into an electrical signal and send it to the processor, the processor converting the electrical signal into a measurement result; A communication component, wherein the communication component can establish a communication connection with a terminal, the communication component is electrically connected to the processor, and the processor can send the measurement result to the terminal through the communication component; The detection unit (200) comprises: a grating ruler (210), the grating ruler (210) being mounted on the movable measuring rod (230) and moving along with the movement of the movable measuring rod (230), the grating ruler (210) being capable of reflecting laser light; A laser emitter, the laser emitter is mounted on the scale frame (100), and the laser emitter is capable of emitting laser light toward the grating scale (210).

2. The digital display intelligent communication lever ruler according to claim 1 is characterized in that: The communication component includes a wireless communication unit, and the wireless communication unit can establish a communication connection with the terminal.

3. The digital display intelligent communication lever ruler according to claim 2 is characterized in that: The wireless communication unit is one of the following: a Bluetooth communication module, a near field communication module or a wireless radio frequency identification communication module.

4. The digital display intelligent communication lever ruler according to claim 1, characterized in that: The communication component includes a communication port, and the communication component can be electrically connected to the terminal through the communication port.

5. The digital display intelligent communication lever ruler according to claim 1 is characterized in that: The detection unit (200) comprises: A signal detector, the signal detector is electrically connected to the processor, the signal detector is arranged on the ruler frame (100), the signal detector is capable of detecting laser light reflected by the grating ruler (210) and converting it into an electrical signal and sending it to the processor to detect the displacement of the movable measuring rod (230), and the processor converts the electrical signal of the signal detector into a measurement result of the movable measuring rod (230).

6. The digital display intelligent communication lever ruler according to claim 1, characterized in that: Also includes: A display screen (300), the display screen (300) being electrically connected to the processor, the processor being capable of displaying measurement results via the display screen (300), the display screen (300) being a circular structure or a rectangular structure.

7. The digital display intelligent communication lever ruler according to claim 6, characterized in that: The display screen (300) has the display functions of an analog pointer interface and a digital interface.

8. The digital display intelligent communication lever ruler according to claim 1, characterized in that: Also includes: An elastic member, the elastic member having two ends, the two ends of the elastic member being respectively a first end and a second end, the first end being arranged on the ruler frame (100), and the second end being capable of pushing the movable measuring rod (230) to approach the differential rod (220).

9. The digital display intelligent communication lever ruler according to claim 8, characterized in that: Also includes: A lever (310), wherein the lever (310) has two ends, the two ends of the lever (310) are respectively a third end and a fourth end, the lever (310) is hingedly mounted on the ruler frame (100), the hinge point between the lever (310) and the ruler frame (100) is located between the third end and the fourth end, a matching groove (240) is provided on a side of the movable measuring rod (230) close to the lever (310), the third end is in contact with an inner wall of the matching groove (240), and the movable measuring rod (230) pushes the lever (310) to rotate around the hinge point through the inner wall of the matching groove (240); A push handle (320), the push handle (320) is slidably mounted on the ruler frame (100), and the push handle (320) abuts against the fourth end, and the push handle (320) and the elastic member are located on the same side of the lever (310).

10. The digital display intelligent communication lever ruler according to claim 9, characterized in that: The two ends of the push handle (320) are respectively a fifth end and a sixth end, and the sixth end is in contact with the lever (310); The ruler frame (100) is provided with a sliding through hole, the push handle (320) is slidably mounted in the sliding through hole, and a limit pin (330) is provided on the sixth end along the radial direction of the sixth end, the limit pin (330) preventing the push handle (320) from sliding out of the sliding through hole.

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