Level meter remote control equipment and level meter assembly

Through the remote control equipment of the level instrument integrating monitoring and control modules, the problem of inconvenient portability and time-consuming operation during use of the level instrument is solved, and convenient laser line position monitoring and prompt functions are provided, which improves the user experience.

CN223295429UActive Publication Date: 2025-09-02HENAN JIANGHUA MEASURE TOOLS CO LTD
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Patent Information

Application Number
CN202422867058.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-09-02
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

It is inconvenient to carry and time-consuming and laborious to operate during use. It is especially difficult to observe clearly when the light is too bright or the laser is projected on a distant object in an outdoor environment.

Method used

A level remote control device is designed, and the monitoring module and the control module are integrated into the housing, including a laser receiving plate and a prompt unit, which can receive laser line position information and send a prompt signal, which is compatible with the remote control and receiver functions, and simplifies operation.

Benefits of technology

It realizes that there is no need to carry the remote control and receiver separately, which is convenient to operate. Users can intuitively monitor whether the laser line position meets the requirements, improving the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of measurement, in particular to gradienter remote control equipment and a gradienter assembly.The gradienter remote control equipment comprises a shell, a monitoring module and a control module, the monitoring module comprises a laser receiving plate and a prompting unit which are arranged on the shell, and the laser receiving plate is used for obtaining laser ray position information of a gradienter body; the prompting unit is electrically connected with the laser receiving plate and is used for sending out a prompting signal according to the laser line position information; the control module comprises a first button set used for controlling the gradienter body and a second button set used for controlling the monitoring module, and the first button set and the second button set are both arranged on the shell and exposed out of the shell. The monitoring module for monitoring the laser ray position information of the gradienter body and the control module are integrated in the shell, so that the remote controller is compatible with the receiver function, a user does not need to carry the gradienter separately when using the gradienter, operation is convenient, and time and labor are saved.
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Description

Technical Field

[0001] The present disclosure relates to the field of measurement technology, and in particular to a level remote control device and a level assembly including the level remote control device. Background Art

[0002] A spirit level is a commonly used measuring tool for measuring small angles. In the machinery industry and instrument manufacturing, it can be used to measure inclination angles relative to the horizontal position, the flatness and straightness of guide rails of machine tools, and the horizontal and vertical positions of equipment installations.

[0003] Currently, levels are used in many scenarios, including indoors and outdoors. When used outdoors, the laser line is often difficult to see due to factors such as excessive light or the laser line being projected onto objects at a distance. Therefore, the level often needs to be used with a receiver.

[0004] However, when using it, workers not only need to carry a level, but also need to carry corresponding receivers, remote controls and other equipment, which is inconvenient to carry and time-consuming and labor-intensive to operate. Utility Model Content

[0005] The purpose of the present disclosure is to provide a level remote control device and a level assembly, aiming to solve the technical problems in the prior art that the level is inconvenient to carry during use and is time-consuming and labor-intensive to operate.

[0006] To achieve this purpose, on the one hand, the technical solution adopted in the present disclosure is: to provide a level remote control device, including a shell, a monitoring module and a control module, the monitoring module including a laser receiving board and a prompt unit arranged in the shell, the laser receiving board is used to obtain the laser line position information of the level body, the prompt unit is electrically connected to the laser receiving board and is used to issue a prompt signal according to the laser line position information; the control module includes a first button group for controlling the level body and a second button group for controlling the monitoring module, the first button group and the second button group are both arranged in the shell and exposed outside the shell.

[0007] In at least one embodiment, the shell is a hollow rectangular shell formed by connecting and enclosing a front shell and a rear shell, and the laser receiving plate extends along the length direction of the shell; a horizontal reference mark is provided on the front shell, and the horizontal reference mark is located on at least one side of the laser receiving plate in its width direction.

[0008] In at least one embodiment, the laser receiving plate is rectangular, and the horizontal reference mark is a line extending from the middle of the long side of the laser receiving plate along the width direction of the laser receiving plate.

[0009] In at least one embodiment, the rear shell is formed with scale lines and a rear reference line perpendicular to each other, the rear reference line and the horizontal reference mark are located on the same cross section of the shell, and the scale lines are divided into upper and lower scale segments by the rear reference line.

[0010] In at least one embodiment, the scale values ​​of the upper scale segment and the lower scale segment at the rear reference line are both 0, and the scale values ​​gradually increase in a direction away from the rear reference line.

[0011] In at least one embodiment, the length of the scale line is not greater than the length of the laser receiving plate.

[0012] In at least one embodiment, the prompt unit includes at least three front indicator lights provided on the front shell and electrically connected to the laser receiving board, one of the at least three front indicator lights is provided on the horizontal reference mark, and the other at least two are respectively provided on both sides of the horizontal reference mark in the length direction of the laser receiving board.

[0013] In at least one embodiment, the prompt unit also includes at least three rear indicator lights provided on the rear shell and electrically connected to the laser receiving board, one of the at least three rear indicator lights is provided on the rear reference line, and the other at least two are respectively provided on both sides of the rear reference line in the extension direction of the scale line.

[0014] In at least one embodiment, the first button group includes a counterclockwise fine adjustment button, a counterclockwise fast adjustment button, a clockwise fine adjustment button, a clockwise fast adjustment button, a reset button, a horizontal line control button, a vertical line control button, and a mode switch button.

[0015] In at least one embodiment, the prompt unit also includes a buzzer provided on the shell, the buzzer is electrically connected to the laser receiving board, and the shell is also provided with a sound outlet hole for the buzzer; the second button group includes a main switch button and a sound switch button for controlling the buzzer.

[0016] In at least one embodiment, the control module further includes at least one indicator light provided on the housing, and the indicator light is configured to be electrically connected to a button circuit in the first button group or a button circuit in the second button group.

[0017] In at least one embodiment, two slots are provided in the shell, each slot is provided with a horizontal bubble, and the two horizontal bubbles extend in directions perpendicular to each other; and an avoidance hole is formed on the outer surface of the shell for each horizontal bubble to be exposed outside the shell.

[0018] On the other hand, the present disclosure provides a level assembly, comprising a level body and the above-mentioned level remote control device for monitoring and controlling the level body.

[0019] The beneficial effects of the level remote control device and level assembly provided by the present disclosure include: compared with the existing technology, the level remote control device proposed in the present disclosure includes a shell, a monitoring module and a control module. By integrating the monitoring module for monitoring the laser line position information of the level body and the control module for controlling the operation of the level body into the shell, the remote control is compatible with the receiver function. When using the level, the user does not need to carry them separately, which is convenient to operate and saves time and effort. In addition, by setting the laser receiving board in the shell, the laser line position information can be received, and the prompt unit can send a prompt signal according to the laser line position information, so that the user can intuitively monitor whether the laser line position of the level body meets the requirements without being affected by the level use environment. The device functions are more diverse and the user experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 is a three-dimensional schematic diagram of a level remote control device provided by an embodiment of the present disclosure;

[0022] Figure 2 is a front view schematic diagram of a level remote control device provided by an embodiment of the present disclosure;

[0023] Figure 3 is a rear view schematic diagram of a level remote control device provided by an embodiment of the present disclosure;

[0024] Figure 4 is a three-dimensional schematic diagram of a level remote control device (without a front housing) provided in an embodiment of the present disclosure;

[0025] Figure 5 It is a three-dimensional schematic diagram of the level remote control device (without a rear cover) provided in an embodiment of the present disclosure.

[0026] Among them, the reference numerals in the figures are:

[0027] 1: Housing 1a: Front housing

[0028] 1b: Back shell x: Length direction of the shell

[0029] y: width direction of the shell 100: horizontal reference mark

[0030] K: scale line 10: rear reference line

[0031] K1: upper scale segment K2: lower scale segment

[0032] 2: Circuit board 3: Laser receiving board

[0033] 31: Long side of the laser receiving plate 32: Width direction of the laser receiving plate

[0034] 4: First button group 5: Second button group

[0035] 41: Counterclockwise fine adjustment button 42: Counterclockwise fast adjustment button

[0036] 43: Clockwise fine adjustment button 44: Clockwise fast adjustment button

[0037] 45: Reset button 46: Horizontal line control button

[0038] 47: Vertical line control button 48: Mode switch button

[0039] 50: Sound hole 51: Main switch button

[0040] 52: Sound switch button 500: Buzzer

[0041] 7: Front indicator light 6: Warning light

[0042] 9: Card slot 8: Rear indicator light

[0043] 90: Avoidance hole 91: Level bubble

[0044] J: Reference groove DETAILED DESCRIPTION

[0045] The following describes in detail embodiments of the present disclosure, examples of which 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 intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0047] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0048] In this disclosure, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0049] In addition, in the description of the present disclosure, “a plurality of” means two or more, unless otherwise clearly and specifically defined.

[0050] like Figures 1 to 5 The figure shows a preferred embodiment provided by the present disclosure.

[0051] The present disclosure provides a level remote control device that is compatible with the functions of a receiver and a remote control. It can be used to control the laser line position of the level body, and can also receive the laser line position signal fed back by the level body, and send a prompt signal according to the laser line position information, so that the user can further adjust the laser line position of the level body until it is adjusted to the required horizontal, vertical or preset tilt state.

[0052] In a specific embodiment, a level remote control device includes a housing 1, a monitoring module, and a control module. The monitoring module includes a laser receiving board 3 and a prompt unit disposed on the housing 1. The laser receiving board 3 can establish a signal connection with the level body to obtain the laser line position information of the level body. The specific signal connection method can be a wired or wireless connection, and wireless connection can be achieved through various means, including but not limited to a wireless router, a wireless bridge, Bluetooth, Wi-Fi Direct, a mobile phone hotspot, etc. A control base can be provided on the level body, and a corresponding communication module, such as a Bluetooth module, can be provided in the base to achieve real-time communication with the level remote control device. At the same time, the prompt unit is electrically connected to the laser receiving board 3 and is used to issue a prompt signal based on the laser line position information. The prompt signal can be in various forms, such as sound, light, etc., and can also be used in conjunction with a scale line K or other markings on the housing 1 to provide a laser line position prompt.

[0053] Among them, the above-mentioned laser receiving board 3 can be understood as an electronic board that can receive laser energy. After receiving the laser line emitted by the level body, the laser signal can be sent to the control module. The control module can provide an offset prompt based on the offset of the laser line compared to the scale line K marked on the shell 1. When the offset is large, a low-frequency sound can be used to prompt, and when the offset is small, a higher-frequency sound can be used to prompt. When the laser line position reaches the preset ideal position, the highest-frequency sound can be used to prompt. Of course, the above is just an example. The laser line offset and position prompt can also be displayed by introducing electronic devices such as display screens, or by other methods that can facilitate users to understand the current degree of laser line offset of the level body. This is not the only limitation here.

[0054] The control module may include a first button group 4 for controlling the level body and a second button group 5 for controlling the monitoring module. Both the first button group 4 and the second button group 5 are located within the housing 1 and are visible from the outside of the housing 1, thereby facilitating remote control of the level body and the monitoring module within the level remote control device. Of course, the control module may also include control buttons for other purposes to assist the user in adjusting the laser line of the level body to a target position (horizontal, vertical, or a preset angle, etc.). The first button group 4 and the second button group 5 may be electrically connected to the circuit board 2 within the housing 1, thereby enabling remote control of the level body and the monitoring module within the level remote control device.

[0055] The above-mentioned level remote control device includes a shell 1, a monitoring module and a control module. By integrating the monitoring module for monitoring the laser line position information of the level body and the control module for controlling the operation of the level body into the shell 1, the remote control is compatible with the receiver function. When using the level, the user does not need to carry them separately, which is convenient to operate and saves time and effort. In addition, by setting the laser receiving board 3 in the shell 1, the laser line position information can be received, and the prompt unit can send a prompt signal according to the laser line position information, so that the user can intuitively monitor whether the laser line position of the level body meets the requirements without being affected by the level use environment. The device functions are more diverse and the user experience is better.

[0056] In one embodiment of the present disclosure, please refer to Figure 1 and Figure 2The housing 1 is a hollow rectangular parallelepiped formed by a front housing 1a and a rear housing 1b. The laser receiving board 3 extends along the length direction x of the housing 1. The laser receiving board 3 is located within the housing 1 and exposed outside the front housing 1a. A horizontal reference mark 100 is provided on the front housing 1a. The horizontal reference mark 100 is located on at least one side of the laser receiving board 3 along its width direction 32. It should be noted that the laser receiving board 3 extends along the length direction x of the housing 1, and its width direction 32 is perpendicular to its length direction x, which is also the width direction y of the housing 1. The horizontal reference mark 100 can be understood as the position where the laser line on the laser receiving board 3 points when the laser line of the level is at the target position. The horizontal reference mark 100 can be used to coordinate with the information received by the laser receiving board 3, helping the user to intuitively and quickly determine whether the laser line of the level has been adjusted to the target position. When the horizontal line received by the laser receiving board 3 indicates the horizontal reference mark 100, it indicates that the laser line has reached the target position and adjustment is complete.

[0057] In one embodiment of the present disclosure, see Figure 2 The laser receiving plate 3 is rectangular, and the horizontal reference mark 100 is a line extending from the middle of the long side 31 of the laser receiving plate 3 along the width direction 32 of the laser receiving plate 3. This structure divides the area of ​​the laser receiving plate 3 into two parts along the longitudinal direction via the horizontal reference mark 100. The upper and lower halves of the laser receiving plate 3 shown in the figure are substantially identical in area and length. Furthermore, the upward and downward offsets of the laser line can be displayed within substantially the same area, demonstrating a reasonable structure and shape.

[0058] In one embodiment of the present disclosure, see Figure 3 The rear shell 1b is formed with perpendicular scale lines K and a rear reference line 10. The rear reference line 10 and the horizontal reference mark 100 are located on the same cross-section of the shell 1. The scale line K is divided by the rear reference line 10 into an upper scale segment K1 and a lower scale segment K2. The scale line K serves to visually indicate the offset of the laser line, thereby facilitating user adjustment of the level. The same cross-section of the shell 1 can be understood as the same cross-section perpendicular to its length direction x. This design ensures that the corresponding scales on the scale line K of the rear reference line 10 and the horizontal reference mark 100 are consistent. This allows the user to more flexibly and accurately operate the level using the laser receiving plate 3 and horizontal reference mark 100 on the front of the shell 1, as well as the scale lines K and rear reference line 10 on the back. As shown in the figure, a reference groove J can also be provided on the shell 1 to highlight the position of the rear reference line 10 and the horizontal reference mark 100 for easier observation.

[0059] In one embodiment of the present disclosure, please continue to refer to Figure 3The scale values ​​of the upper and lower scale segments K1 and K2 are both zero at the rear reference line 10, and the scale values ​​gradually increase as they move away from the rear reference line 10. Furthermore, the length of the scale line K is no longer than the length of the laser receiving plate 3. This structure facilitates the production and processing of the scale line K. Furthermore, the scale values ​​of the upper and lower scale segments K1 and K2 are rationally set and intuitive to observe, providing a precise reference when the user controls the level.

[0060] In one embodiment of the present disclosure, please refer to Figure 1 、 Figure 2 and Figure 4 The prompt unit includes at least three front indicator lights 7 (three shown in the figure) provided on the front housing 1a and electrically connected to the laser receiving board 3. One of the at least three front indicator lights 7 is provided on the horizontal reference mark 100, and the other at least two are provided on both sides of the horizontal reference mark 100 in the longitudinal direction of the laser receiving board 3. Further, as Figure 3 and Figure 5 As shown, the prompt unit also includes at least three rear indicator lights 8 disposed on the rear housing 1b and electrically connected to the laser receiving board 3. One of the at least three rear indicator lights 8 is located on the rear reference line 10, and at least two others are located on either side of the rear reference line 10 in the direction extending from the scale line K. After the laser receiving board 3 receives the laser line position signal from the level body, it controls the front indicator lights 7 and rear indicator lights 8 at the corresponding positions to illuminate, thereby notifying the user whether the target laser line is currently offset and by what angle. For example, if the laser receiving board 3 receives a laser line that has been adjusted to the expected position, it will control the front indicator light 7 located on the horizontal reference mark 100 and the rear indicator light 8 located on the rear reference line 10 to emit light; if the laser receiving board 3 receives a laser line that is offset in the counterclockwise direction, it will control the front indicator light 7 located above the horizontal reference mark 100 and the rear indicator light 8 located above the rear reference line 10 to emit light; conversely, if the laser receiving board 3 receives a laser line that is offset in the clockwise direction, it will control the front indicator light 7 located below the horizontal reference mark 100 and the rear indicator light 8 located below the rear reference line 10 to emit light. Of course, the above is merely an example provided to explain the solution and does not limit the scope of protection of this solution. It should be pointed out that all the front indicator lights 7 and all the rear indicator lights 8 can be located on the same longitudinal section of the shell 1; further, the number of the front indicator lights 7 and the rear indicator lights 8 can be the same, and they can be arranged one-to-one on the front and rear sides of the shell 1; further, the front and rear corresponding front indicator lights 7 and rear indicator lights 8 can be the same lamp beads embedded in the circuit board 2, so that when the lamp beads emit light, the light can be observed at the same scale on the front and rear sides of the shell 1, and the structure is simple and easy to implement and control.

[0061] In one embodiment of the present disclosure, see Figure 1 The first button group 4 includes a counterclockwise fine-adjustment button 41, a counterclockwise quick-adjustment button 42, a clockwise fine-adjustment button 43, a clockwise quick-adjustment button 44, a reset button 45, a horizontal line control button 46, a vertical line control button 47, and a mode switch button 48. The functions of all buttons can be achieved through silicone buttons and pot buttons. It should be explained that the first button group 4 can be used to control the level body, wherein the level body may include a control base, which may be equipped with a Bluetooth receiver. After receiving control instructions from the level remote control device, the Bluetooth receiver can control the movement of the stepper motor through the mainboard. The motor drives the slider to rotate clockwise or counterclockwise along the slide rail through the transmission structure. The slider can be connected to a device capable of emitting a laser line, and the rotation of the slider causes the laser line to deflect in a preset direction. The counterclockwise quick-adjust button 42 can be understood as a button for rapidly rotating the slide in a counterclockwise direction. The counterclockwise fine-adjust button 41 can be understood as a button for rotating the slide in a small counterclockwise direction. Quick-adjust can be understood as a faster rotation speed of the slider compared to fine-adjust. The specific slider speed values ​​for quick-adjust and fine-adjust are not specifically limited. The functions of the clockwise fine-adjust button 43 and the clockwise quick-adjust button 44 are similar and will not be described in detail here. The reset button 45 can be understood as a button that returns the slider to its previous position and can perform the same function as the reset button 45 in the art. The horizontal line control button 46 and the vertical line control button 47 can be used to control the horizontal and vertical laser lines of the level body respectively, meeting the needs of actual engineering applications and providing flexible and convenient adjustment. The mode switch button 48 can be understood as a button for turning on and off the pulse and strobe modes of the level body. Of course, it can also be used to turn on or off other modes of the level body, which are not limited here.

[0062] In one embodiment of the present disclosure, please refer to Figure 3 and Figure 5 The prompt unit also includes a buzzer 500 provided on the housing 1. The buzzer 500 is electrically connected to the laser receiving board 3. The housing 1 is also provided with a sound outlet 50 for the buzzer 500. When the offset of the laser line of the level body exceeds a preset value, the level body can sound an alarm, and the buzzer 500 on the level remote control device can also sound an alarm accordingly. Of course, in addition to the alarm function, the buzzer 500 can also emit a corresponding prompt sound after the laser line of the level body is adjusted to the target position. In addition, the buzzer 500 can also emit corresponding sounds in other situations to provide necessary auditory assistance to the user of the level remote control device and enhance the user experience. The second button group 5 can include a main switch button 51 and an audio switch button 52 for controlling the buzzer 500. The main switch button 51 can be understood as a button that can control the power of the monitoring module.

[0063] In one embodiment of the present disclosure, please refer to Figure 1 、 Figure 2 and Figure 4 The control module further includes at least one indicator light 6 disposed on the housing 1. The indicator light 6 is configured to be electrically connected to the button circuits in the first button group 4 or the button circuits in the second button group 5. The indicator light 6 can serve as an on / off light for the monitoring module, or as a light that illuminates when all buttons in the second button group 5 are pressed, thereby prompting the user that a button has been pressed or that the button is functioning properly, providing a good user experience.

[0064] In one embodiment of the present disclosure, see Figure 5 The housing 1 is provided with two slots 9, each of which is provided with a level bubble 91. The two level bubbles 91 extend perpendicularly to each other. The outer surface of the housing 1 is formed with a clearance hole 90 for each level bubble 91 to be exposed outside the housing 1. This allows users to use the two level bubbles 91 on the housing 1 of the level remote control device as needed, which is convenient and fast, and has high user retention.

[0065] On the other hand, the present disclosure provides a level assembly, comprising a level body and the above-mentioned level remote control device for monitoring and controlling the level body. The level assembly is easy to use, has a wide range of application scenarios, and provides a good user experience.

[0066] Obviously, the above embodiments of the present disclosure are merely examples for the purpose of clearly illustrating the present disclosure, and are not intended to limit the implementation methods of the present disclosure. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present disclosure shall be included in the scope of protection of the claims of the present disclosure.

Claims

1. A level remote control device, comprising a housing, characterized in that: It also includes a monitoring module and a control module, the monitoring module includes a laser receiving board and a prompt unit arranged on the shell, the laser receiving board is used to obtain the laser line position information of the level body, and the prompt unit is electrically connected to the laser receiving board and is used to send a prompt signal according to the laser line position information; the control module includes a first button group for controlling the level body and a second button group for controlling the monitoring module, the first button group and the second button group are both arranged on the shell and exposed outside the shell.

2. The level remote control device according to claim 1, characterized in that: The shell is a hollow rectangular shell formed by connecting and enclosing a front shell and a rear shell, and the laser receiving plate extends along the length direction of the shell; a horizontal reference mark is provided on the front shell, and the horizontal reference mark is located on at least one side of the laser receiving plate in its width direction.

3. The level remote control device according to claim 2, characterized in that: The laser receiving plate is rectangular, and the horizontal reference mark is a line extending from the middle of the long side of the laser receiving plate along the width direction of the laser receiving plate.

4. The level remote control device according to claim 3, characterized in that: The rear shell is formed with scale lines and a rear reference line perpendicular to each other. The rear reference line and the horizontal reference mark are located on the same cross section of the shell. The scale lines are divided into upper and lower scale segments by the rear reference line.

5. The level remote control device according to claim 4, characterized in that: The scale values ​​of the upper scale segment and the lower scale segment at the rear reference line are both 0, and the scale values ​​gradually increase in a direction away from the rear reference line; And / or, the length of the scale line is not greater than the length of the laser receiving plate.

6. The level remote control device according to claim 4, characterized in that: The prompt unit includes at least three front indicator lights provided on the front shell and electrically connected to the laser receiving board, one of the at least three front indicator lights is provided on the horizontal reference mark, and the other at least two are respectively provided on both sides of the horizontal reference mark in the length direction of the laser receiving board.

7. The level remote control device according to claim 6, characterized in that: The prompt unit also includes at least three rear indicator lights provided on the rear shell and electrically connected to the laser receiving board, one of the at least three rear indicator lights is provided on the rear reference line, and the other at least two are respectively provided on both sides of the rear reference line in the extension direction of the scale line.

8. The level remote control device according to any one of claims 1 to 7, characterized in that: The first button group includes a counterclockwise fine adjustment button, a counterclockwise fast adjustment button, a clockwise fine adjustment button, a clockwise fast adjustment button, a reset button, a horizontal line control button, a vertical line control button, and a mode switch button; And / or, the prompt unit further includes a buzzer provided on the housing, the buzzer is electrically connected to the laser receiving board, and the housing is further provided with a sound outlet for the buzzer; the second button group includes a main switch button and a sound switch button for controlling the buzzer; And / or, the control module further includes at least one warning light provided on the housing, and the warning light is configured to be electrically connected to the button circuit in the first button group or the button circuit in the second button group.

9. The level remote control device according to any one of claims 1 to 7, characterized in that: Two slots are provided in the shell, each slot is provided with a level bubble, and the two level bubbles extend in directions perpendicular to each other; an escape hole is formed on the outer surface of the shell for each level bubble to be exposed outside the shell.

10. A level assembly, characterized in that: The invention comprises a spirit level body and a spirit level remote control device according to any one of claims 1 to 9 for monitoring and controlling the spirit level body.