Light indicating level
By integrating sensor and light indicator modules, the light-indicating level solves the problem that traditional levels cannot provide long-distance direction indication and adjustment in complex environments, achieving efficient and intuitive direction guidance and improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUHAI LEVELSURE TECH CO LTD
- Filing Date
- 2025-09-29
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional spirit levels are difficult to use for long-distance indication and directional guidance in situations such as high altitudes, obstructed lines of sight, insufficient lighting, or long-distance observation, which affects measurement accuracy and operational safety.
Design a light-indicating level that integrates a sensor module, a light indicator module, and a control module. Multiple LEDs are distributed on both sides of the center line to form a patterned indication. The control module controls the LEDs to light up according to the tilt angle detected by the sensor, forming an intuitive deflection direction pattern.
It enables efficient and intuitive directional guidance in complex environments, improves the reliability and operational safety of long-distance observation, and is especially suitable for construction scenarios where repeated long-distance observation and fine-tuning are required, such as RV leveling.
Smart Images
Figure CN224499483U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of measuring instrument technology, and in particular to a light-indicating level. Background Technology
[0002] A traditional spirit level is a measuring instrument that uses the principle of a level liquid surface to directly display angular displacement with a bubble level, measuring the degree of deviation of the measured surface from its horizontal, vertical, and tilt positions.
[0003] When using a traditional spirit level, it's necessary to observe whether the bubble level is centered. In some work environments, due to factors such as position, lighting, angle, or body posture, observing the bubble level on a traditional spirit level can be very difficult or even dangerous for workers. Specifically, the shortcomings of traditional spirit levels are particularly prominent in the following typical application scenarios:
[0004] In high-altitude or high-reaching work scenarios, such as installing ceiling grids, suspended ceiling joists, high-altitude pipes, exterior wall painting, or repairing high-altitude lighting equipment, workers often need to stand on ladders, scaffolding, or lifting platforms, raising a spirit level to their head or close to the ceiling. At this time, if they need to bend down or make significant adjustments to their body posture to observe the bubble level on the spirit level, it is very easy to lose balance, increasing the risk of falling. At the same time, due to the long line of sight and the tilted angle of view, the position of the bubble is difficult to accurately identify, affecting measurement accuracy.
[0005] Scenarios with obstructed visibility: When installing cabinets or wall cabinets, measuring the level of the gap between the cabinet and the wall, or leveling the bottom of large equipment (such as air conditioner outdoor units or compressors) or vehicle chassis, the level ruler is often obstructed by the structure of the object itself or surrounding components. The operator cannot obtain a direct and clear observation path, resulting in the inability to effectively read the bubble status.
[0006] In low-light or dark environments: In poor lighting conditions such as basements, underground pipe corridors, inside equipment cabinets, suspended ceilings, or outdoor construction at night, traditional spirit levels lack self-illuminating or backlighting designs, and their transparent bubble tubes are almost invisible in low-light environments, which seriously restricts the normal conduct of measurement work.
[0007] Long-distance placement and observation scenarios: When performing long-distance straight-line calibration (such as track laying, setting baselines for large-area paving stones, and stringing lines for wall construction) or leveling work on outdoor RVs, the spirit level needs to be fixed at a distant position. Operators need to repeatedly move back and forth or visually inspect the bubble status from a distance. The human eye cannot accurately determine whether the bubble is centered from several meters or even tens of meters away, which is not only inefficient but also prone to introducing visual errors, affecting construction quality.
[0008] To address the aforementioned issues, some digital spirit levels have emerged, replacing traditional bubble tubes with electronic sensors and digital displays, thus improving readability to some extent. However, current digital spirit levels still have shortcomings. There are currently two improved spirit level technologies: the first uses a scrolling LED (Light-emitting Diode) light strip to indicate the direction of deflection. While it can indicate the adjustment trend, its practicality is limited in long-distance observation scenarios (such as leveling a motorhome) because the dynamic changes of the light strip are not easily captured. The second uses an LED array light that changes color to display the angle. Although it can quantify the degree of tilt, it cannot indicate the adjustment direction to level the spirit level, failing to provide users with intuitive adjustment direction guidance.
[0009] Therefore, there is an urgent need for a new type of spirit level to solve the problem that current spirit levels cannot simultaneously provide long-distance indication and directional guidance. Utility Model Content
[0010] The main purpose of this invention is to propose a light-indicating level, which aims to solve the problem that current level can not simultaneously provide both long-distance indication and directional guidance.
[0011] To achieve the above objectives, the present invention proposes a light-indicating level, comprising a sensor module, a light-indicating module, a control module, and a level body. The light-indicating module includes multiple LEDs and has an LED mounting area with a center line passing through the longitudinal midpoint of the mounting area and perpendicular to its longitudinal direction. All LEDs are located within the mounting area. The control module is electrically connected to the sensor module and the multiple LEDs. The light-indicating module, sensor module, and control module are all housed within the level body. The multiple LEDs are distributed on both sides of the center line; or, the center points of some of the LEDs are located on the center line, while the center points of others are distributed on both sides of the center line. The light-indicating module is configured such that, in operation, the control module controls the multiple LEDs to illuminate, forming a pattern for indicating the direction of deflection.
[0012] In one embodiment, multiple LEDs are symmetrically distributed within the LED mounting area; and / or, a plane perpendicular to the longitudinal direction of the LED mounting area is used as the projection plane, the projection plane passes through the centerline, multiple LEDs located on the left side of the projection plane form multiple left projection points on the projection plane, the maximum distance between the multiple left projection points along the centerline direction is the first distance, multiple LEDs located on the right side of the projection plane form multiple right projection points on the projection plane, the maximum distance between the multiple right projection points along the centerline direction is the second distance, and the first distance and the second distance are the same.
[0013] In one embodiment, the light indicator level also includes a circuit board, on which a sensor module, a control module, and multiple LEDs are encapsulated, so that the control module is electrically connected to the light indicator module and the sensor module respectively; the LED mounting area is located on the circuit board.
[0014] In one embodiment, the circuit board is configured as a PCB board; multiple LEDs are mounted on the PCB board; or, multiple LEDs are bonded to the PCB board.
[0015] In one embodiment, the LED bead mounting area extends longitudinally along the ruler body, and the projection of the longitudinal length of the LED bead mounting area onto the front surface of the ruler body is the first projection length, and the ratio of the first projection length to the length of the front surface of the ruler body is greater than 1 / 2.
[0016] In one embodiment, the front surface of the LED mounting area is parallel to the front surface of the ruler.
[0017] In one embodiment, a light-transmitting area is provided on the front surface of the ruler, and the projections of multiple LED beads on the front surface of the ruler are all located within the light-transmitting area.
[0018] In one embodiment, a beam splitter is provided in the light-transmitting area. The beam splitter is disposed in the light-transmitting area and is located at the corresponding position of the projection of the center line along the front surface of the ruler.
[0019] In one embodiment, a light-transmitting protective element is provided on the light-transmitting area. The light-transmitting protective element is made of a light-transmitting material and covers the light indicator module.
[0020] In one embodiment, the multiple LED beads are divided into three groups: the first group of LED beads located to the left of the center line is inclined to the left of the ruler, the second group of LED beads located on the center line is inclined to the front of the ruler, and the third group of LED beads located to the right of the center line is inclined to the right of the ruler.
[0021] The technical solution of this utility model integrates a sensor module, a control module, and a light indicator module into the ruler body. The light indicator module contains multiple LEDs, which are distributed on both sides of the centerline of the LED installation area (or partially on the centerline and partially distributed on both sides). In operation, the control module controls the corresponding LEDs to light up based on the tilt angle and direction detected by the sensor module, thereby forming a visual pattern that intuitively indicates the direction of deflection. This allows for the graphical, long-distance visual output of measurement results. Because the LEDs are distributed on both sides of the centerline (or partially along the centerline), a clear visual center baseline is formed. When the level tilts, the control module can drive the LEDs on one side to light up, or make the number of LEDs lit on one side significantly greater than on the other side, thus visually creating a directional prompt for left or right deviation. This directly guides the user to adjust in the opposite direction without numerical interpretation, achieving an efficient and intuitive directional guidance function. Furthermore, this patterned light indicator relies on the physical spatial distribution of the LED beads. Even in scenarios such as long-distance observation, obstructed vision, dim lighting, or limited operator posture, users can still quickly and accurately identify the current tilt direction by observing the spatial distribution of the illuminated area. This significantly improves the reliability and response efficiency of long-distance observation, making it particularly suitable for construction scenarios such as RV leveling that require repeated long-distance observation and fine-tuning, effectively improving work efficiency and operational safety. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0023] Figure 1 A schematic diagram of a structural embodiment of the light-indicating level provided by this utility model;
[0024] Figure 2 A cross-sectional view of an embodiment of the light-indicating level provided by this utility model;
[0025] Figure 3 A schematic diagram of the lamp bead arrangement of one embodiment of the light indicator level provided by this utility model;
[0026] Figure 4 A schematic diagram of the second arrangement of LED beads in one embodiment of the light indicator level provided by this utility model;
[0027] Figure 5 A schematic diagram of the lamp bead arrangement form three of an embodiment of the light indicator level provided by this utility model;
[0028] Figure 6 A schematic diagram of the LED bead arrangement form four of one embodiment of the light indicator level provided by this utility model;
[0029] Figure 7 This is a schematic diagram of the fifth arrangement of LED beads in one embodiment of the light indicator level provided by this utility model.
[0030] Explanation of icon numbers:
[0031] 1. Sensor module;
[0032] 2. Light indicator module; 21. LED beads; 22. LED bead installation area;
[0033] 3. Control module;
[0034] 4. Scale body; 41. Light-transmitting area; 42. Light-transmitting protective component;
[0035] 5. Circuit board.
[0036] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0038] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0040] A traditional spirit level is a measuring instrument that uses the principle of a level liquid surface to directly display angular displacement with a bubble level, measuring the degree of deviation of the measured surface from its horizontal, vertical, and tilt positions.
[0041] When using a traditional spirit level, it's necessary to observe whether the bubble level is centered. In some work environments, due to factors such as position, lighting, angle, or body posture, observing the bubble level on a traditional spirit level can be very difficult or even dangerous for workers. Specifically, the shortcomings of traditional spirit levels are particularly prominent in the following typical application scenarios:
[0042] In high-altitude or high-reaching work scenarios, such as installing ceiling grids, suspended ceiling joists, high-altitude pipes, exterior wall painting, or repairing high-altitude lighting equipment, workers often need to stand on ladders, scaffolding, or lifting platforms, raising a spirit level to their head or close to the ceiling. At this time, if they need to bend down or make significant adjustments to their body posture to observe the bubble level on the spirit level, it is very easy to lose balance, increasing the risk of falling. At the same time, due to the long line of sight and the tilted angle of view, the position of the bubble is difficult to accurately identify, affecting measurement accuracy.
[0043] Scenarios with obstructed visibility: When installing cabinets or wall cabinets, measuring the level of the gap between the cabinet and the wall, or leveling the bottom of large equipment (such as air conditioner outdoor units or compressors) or vehicle chassis, the level ruler is often obstructed by the structure of the object itself or surrounding components. The operator cannot obtain a direct and clear observation path, resulting in the inability to effectively read the bubble status.
[0044] In low-light or dark environments: In poor lighting conditions such as basements, underground pipe corridors, inside equipment cabinets, suspended ceilings, or outdoor construction at night, traditional spirit levels lack self-illuminating or backlighting designs, and their transparent bubble tubes are almost invisible in low-light environments, which seriously restricts the normal conduct of measurement work.
[0045] Long-distance placement and observation scenarios: When performing long-distance straight-line calibration (such as track laying, setting baselines for large-area paving stones, and stringing lines for wall construction) or leveling work on outdoor RVs, the spirit level needs to be fixed at a distant position. Operators need to repeatedly move back and forth or visually inspect the bubble status from a distance. The human eye cannot accurately determine whether the bubble is centered from several meters or even tens of meters away, which is not only inefficient but also prone to introducing visual errors, affecting construction quality.
[0046] To address the aforementioned issues, some digital spirit levels have emerged, replacing traditional bubble tubes with electronic sensors and digital displays, thus improving readability to some extent. However, current digital spirit levels still have shortcomings. There are currently two improved spirit level technologies: the first uses a scrolling LED light strip to indicate the direction of deflection. While it can indicate the adjustment trend, its practicality is limited in long-distance observation scenarios (such as leveling a motorhome) because the dynamic changes of the light strip are not easily captured. The second uses an LED array light that changes color to display the angle. Although it can quantify the degree of tilt, it cannot indicate the adjustment direction to make the spirit level, failing to provide users with intuitive adjustment direction guidance.
[0047] Therefore, there is an urgent need for a new type of spirit level to solve the problem that current spirit levels cannot simultaneously provide long-distance indication and directional guidance.
[0048] To solve the above problems, this utility model proposes a light-indicating level.
[0049] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the light-indicating level includes a sensor module 1, a light-indicating module 2, a control module 3, and a ruler body 4. The light-indicating module 2 includes multiple LED beads 21 and has an LED bead mounting area 22. The LED bead mounting area 22 has a center line that passes through the longitudinal midpoint of the LED bead mounting area 22 and is perpendicular to the longitudinal direction of the LED bead mounting area 22. The multiple LED beads 21 are all located within the LED bead mounting area 22. The control module 3 is electrically connected to the sensor module 1 and the multiple LED beads 21. The light-indicating module 2, the sensor module 1, and the control module 3 are all disposed within the ruler body 4. The multiple LED beads 21 are distributed on both sides of the center line; or, the center points of some of the multiple LED beads 21 are distributed on the center line, and the center points of other LED beads 21 are distributed on both sides of the center line. The light-indicating module 2 is configured such that, in the working state, the control module 3 controls the multiple LED beads 21 to light up to form a pattern for indicating the deflection direction.
[0050] It should be noted that the center line in this embodiment can be a physical marking line actually printed on the lamp bead installation area 22, or it can be a virtual reference line. In actual light indicator level products, the center line does not need to be physically marked, but is only used as a baseline to help describe the relative position distribution of multiple lamp beads 21.
[0051] Furthermore, regarding the LED installation area 22, the longitudinal direction of the LED installation area 22 is the direction of its long axis. When the ruler 4 is placed horizontally, the longitudinal direction of the LED installation area 22 can be understood as the horizontal length direction. At this time, the direction perpendicular to the longitudinal direction of the LED installation area 22 is the vertical height direction of the rectangular LED installation area 22. The LED installation area 22 can be the area enclosed by the leftmost LED 21, the rightmost LED 21, the topmost LED 21, and the bottommost LED 21; or it can be a pre-defined area, with multiple LEDs 21 set within the pre-defined LED installation area 22. There is no limitation here.
[0052] The technical solution of this utility model integrates the sensor module 1, the control module 3, and the light indicator module 2 into the ruler body 4. The light indicator module 2 is configured to include multiple LED beads 21, which are distributed on both sides of the center line of the LED bead installation area 22 (or partially located on the center line and partially distributed on both sides). In the working state, the control module 3 controls the corresponding LED beads 21 to light up according to the tilt angle and direction detected by the sensor module 1, thereby forming a visual pattern that intuitively indicates the direction of deflection, realizing the measurement result to be output graphically from a distance. Since the LED beads 21 are distributed on both sides of the center line (or partially distributed along the center line), a clear visual center baseline is formed. When the level is tilted, the control module 3 can drive the LED beads 21 on one side to light up, or make the number of LED beads 21 lit on one side significantly greater than that on the other side, thereby visually forming a directional prompt for left or right deviation. It can directly guide the user to adjust in the opposite direction without numerical interpretation, realizing an efficient and intuitive directional guidance function. Furthermore, based on the physical spatial distribution of the LED beads 21, even in scenarios such as long-distance observation, obstructed vision, dim lighting, or limited operator posture, users can still quickly and accurately identify the current tilt direction by observing the spatial distribution of the illuminated area. This significantly improves the reliability and response efficiency of long-distance observation, making it particularly suitable for construction scenarios such as RV leveling that require repeated long-distance observation and fine-tuning, effectively improving work efficiency and operational safety.
[0053] As an optional implementation, sensor module 1 may include an angle sensor or an acceleration sensor to acquire deflection information. Furthermore, sensor module 1 may also include a light sensor to acquire the light intensity of the environment surrounding the ruler 4 and feed this light intensity information back to control module 3. Control module 3 adjusts the brightness of multiple LED beads 21 based on the light intensity, so that the LED beads 21 emit light that matches the light intensity of the environment surrounding the ruler 4, allowing the user to clearly determine whether the LED beads 21 are lit.
[0054] In addition, LED lamp bead 21 can be used; control module 3 can be a commercially available microcontroller (MCU, Microcontroller Unit). The control module 3 can pre-store the conventional lighting control logic program of a conventional digital display level, which will not be described in detail here.
[0055] In addition, this light-indicating level may have a built-in power supply, which is electrically connected to the control module 3, sensor module 1, and light-indicating module 2 respectively; this light-indicating level may also not have a built-in power supply, but instead have a power interface and a power box, so as to achieve power supply by connecting an external power source or inserting a battery into the battery box, without any restrictions.
[0056] Please see Figure 2 In the embodiments of this utility model, multiple LED beads 21 are symmetrically distributed within the LED bead mounting area 22; and / or, a plane perpendicular to the longitudinal direction of the LED bead mounting area 22 is used as the projection plane, the projection plane passes through the center line, multiple LED beads 21 located on the left side of the projection plane form multiple left projection points on the projection plane, the maximum distance between the multiple left projection points along the center line direction is the first distance, multiple LED beads 21 located on the right side of the projection plane form multiple right projection points on the projection plane, the maximum distance between the multiple right projection points along the center line direction is the second distance, the first distance and the second distance are the same.
[0057] In this embodiment, by symmetrically distributing multiple LED beads 21 within the LED bead installation area 22, and / or limiting the projection of multiple LED beads 21 onto a projection plane perpendicular to the longitudinal direction of the LED bead installation area 22, the maximum distance between the projection points of the LED beads 21 on both sides of the center line along the center line direction is equal (i.e., the first distance equals the second distance). This ensures that the light indicator pattern has mirror symmetry and / or consistency in the vertical distance range of the LED beads 21 on the left and right sides in terms of structural layout, thereby providing a stable and balanced reference system for visual judgment of the tilt direction. When the level deflects, the control module 3, based on the data provided by the sensor module 1, only illuminates the deflected side or illuminates more LED beads 21 on that side than on the other side. Since the distribution of the LED beads 21 itself is highly symmetrical, the user can intuitively perceive the tilt direction and adjust accordingly through the significant visual difference of "which side has more lights" or "which side has more lights," avoiding misjudgment or cognitive confusion caused by the asymmetrical arrangement of the LED beads 21. Especially under complex conditions such as long-distance observation, insufficient light, or tilted viewing angles, the LED arrangement scheme of this embodiment significantly enhances the visual recognition and directional certainty of the pattern, reduces human eye judgment errors, and improves adjustment efficiency and measurement accuracy. Simultaneously, the constraint that the first and second distances are equal strengthens the geometric consistency of the spatial distribution, ensuring that regardless of the tilt angle, the light indicator pattern always presents a proportionally coordinated and clearly defined asymmetrical lighting pattern around the center line, allowing the operator to stably capture the deflection direction even during dynamic adjustments.
[0058] Wherein, based on the above-mentioned symmetrical distribution and / or the first distance being the same as the second distance, the specific arrangement of the multiple LED beads 21 in the LED bead mounting area 22 can refer to the following arrangement type examples:
[0059] (1) Multiple LED beads 21 are arranged in a ring on the LED bead mounting area 22, such as Figure 3 As shown;
[0060] (2) Multiple LED beads 21 are arranged in a diamond shape in the LED bead mounting area 22, such as Figure 4 As shown;
[0061] (3) Multiple LED beads 21 are arranged in a double-arrow shape in the LED bead mounting area 22, such as Figure 5 As shown;
[0062] (4) Multiple LED beads 21 are arranged irregularly in the LED bead mounting area 22, such as Figure 6 As shown;
[0063] (5) Multiple LED beads 21 are arranged radially in the LED bead mounting area 22, such as Figure 7 As shown.
[0064] Please see Figures 3 to 7In an embodiment of this utility model, the light indicator level also includes a circuit board 5, and the sensor module 1, the control module 3, and multiple LED beads 21 are all encapsulated on the circuit board 5 so that the control module 3 is electrically connected to the light indicator module 2 and the sensor module 1 respectively; the LED bead mounting area 22 is located on the circuit board 5.
[0065] In this embodiment, by encapsulating the sensor module 1, control module 3, and multiple LED beads 21 together on the same circuit board 5, and directly setting the LED bead mounting area 22 on the surface of the circuit board 5, a high degree of integration and unified layout of sensing, control, and indication functions is achieved in terms of physical structure. This not only significantly reduces the wiring length and connection nodes between modules, but also simplifies the space required inside the ruler body 4, facilitating assembly, debugging, and subsequent maintenance, and enabling the miniaturization of the level. The circuit board 5, as a rigid carrier, provides a flat and stable mounting reference surface for the LED beads 21, ensuring the geometric accuracy of the LED bead arrangement (such as symmetry, spacing uniformity, centerline alignment, etc.), thereby further enhancing the directional indication accuracy and visual consistency of the light pattern. Especially during long-distance observation or dynamic adjustment, the pattern seen by the user can realistically and instantly reflect the current posture of the level, significantly improving operational intuitiveness and adjustment reliability. Overall, this embodiment, through the integrated design of the circuit board 5, optimizes structural compactness and visual indication accuracy while ensuring functional integrity, providing a hardware foundation for the stable and accurate operation of the light-indicating level in complex scenarios.
[0066] Of course, as another embodiment, please refer to Figure 2 A light indicator module 2 is provided on the circuit board 5 of the light indicator level. At this time, multiple LED beads 21 on the light indicator module 2 are electrically connected to the control module 3, and the sensor module 1 is electrically connected to the control module 3. The light indicator module 2, the control module 3, and the sensor module 1 are set separately.
[0067] In an embodiment of this utility model, the circuit board 5 is configured as a PCB (Printed Circuit Board); multiple LED beads 21 are mounted on the PCB; or, multiple LED beads 21 are bonded to the PCB.
[0068] In this embodiment, the circuit board 5 can be configured as a PCB board, on which the sensor module 1, control module 3, and multiple LED beads 21 are packaged. Alternatively, the multiple LED beads 21 can be mounted on the PCB board using SMD (Surface Mount Devices) LED mounting; or, the multiple LED beads 21 can be bonded to the PCB board using COB (Chips on Board) technology, directly bonding a large number of tiny bare LED chips to the PCB board. This embodiment, by using a PCB board as the circuit board 5 and fixing the LED beads 21 on it through mounting or bonding, fully leverages the advantages of the PCB board as a mature electronic carrier in terms of wiring accuracy, electrical performance, and structural stability. This ensures a short electrical signal transmission path, low impedance, and strong anti-interference capability between the control module 3 and the LED beads 21, thereby improving the light indication response speed and lighting consistency. This solution not only ensures the accuracy of the LED bead arrangement and the reliability of the electrical connection but also improves the overall structural stability and resistance to environmental interference.
[0069] Please see Figures 1 to 7 In an embodiment of this utility model, the lamp bead mounting area 22 extends longitudinally along the ruler body 4, and the projection of the longitudinal length of the lamp bead mounting area 22 onto the front surface of the ruler body 4 is the first projection length, and the ratio of the first projection length to the length of the front surface of the ruler body 4 is greater than 1 / 2.
[0070] It should be noted that the conventional horizontal ruler body 4 is roughly rectangular in shape and has three directions: length, width, and height. In this embodiment, the longitudinal direction of the ruler body 4 is the length direction of the ruler body 4.
[0071] In this embodiment, by extending the LED installation area 22 longitudinally along the ruler 4 and ensuring that the ratio of the first projected length to the total length of the front surface of the ruler 4 is greater than 1 / 2, the size of the LED installation area 22 is guaranteed. This ensures that the LED installation area 22 has sufficient space for the arrangement of the LEDs 21, while also allowing the LED installation area 22 to occupy a sufficiently large visual span on the front of the ruler 4, significantly improving directional identification and visual guidance effects during long-distance observation. Thus, even from several meters away or at an oblique angle, users can still clearly perceive the lighting status and patterns of the LEDs 21 within the LED installation area 22, thereby obtaining directional guidance and avoiding misjudgment of direction due to the small size of the LED installation area 22, while also reducing the difficulty for users in determining the deflection direction.
[0072] Please see Figures 1 to 7 In an embodiment of this utility model, the front surface of the lamp bead mounting area 22 is parallel to the front surface of the ruler 4.
[0073] In this embodiment, by keeping the front surface of the LED mounting area 22 parallel to the front surface of the ruler 4, the light indicator pattern formed on the LED mounting area 22 is substantially parallel to the front surface of the ruler 4. When the user observes the front surface of the ruler 4, the light pattern can be observed directly without any viewing angle deviation. The distribution pattern of the illuminated area can be clearly identified without adjusting the viewing angle, thereby significantly improving the intuitiveness and accuracy of the directional indication and optimizing the human-computer interaction experience.
[0074] Please see Figures 1 to 7 In an embodiment of this utility model, a light-transmitting area 41 is provided on the front surface of the ruler body 4, and the projections of multiple LED beads 21 on the front surface of the ruler body 4 are all located within the light-transmitting area 41.
[0075] In this embodiment, by opening a light-transmitting area 41 on the front surface of the ruler 4 and ensuring that the projections of all LED beads 21 on the front surface of the ruler 4 are located within the light-transmitting area 41, it is ensured that all effective light-emitting areas of the light indicator pattern can be transmitted through the surface of the ruler 4 without obstruction, thus avoiding the situation where some LED beads 21 are blocked from being observed by the user due to structural obstruction, thereby ensuring the integrity of the pattern and the uniformity of brightness.
[0076] In addition, as an optional implementation, the light-indicating spirit level may also include a digital display module. The digital display module may include a digital display screen and a digital display main control board that are electrically connected to each other. The projection of the digital display screen onto the front surface of the spirit level 4 is located within the light-transmitting area 41. In this way, the digital display screen in the digital display module can provide a digital display effect, thereby displaying the deflection direction and degree of the spirit level through digital readings, as another supplementary display scheme to the indicator method of the LED beads 21.
[0077] Alternatively, as an optional implementation, the ratio of the projected area of the circuit board 5 on the front surface of the ruler 4 to the area of the light-transmitting region 41 is ≤1. Thus, by limiting the ratio of the projected area of the circuit board 5 on the front surface of the ruler 4 to the area of the light-transmitting region 41 to ≤1, the size of the circuit board 5 is constrained by the boundary of the light-transmitting region 41. This avoids excessive extension of the circuit board 5 while still satisfying the light indication function, effectively saving design space and material costs for the circuit board 5. Simultaneously, it facilitates a compact internal structure, improves assembly efficiency, and facilitates product miniaturization.
[0078] In an embodiment of this utility model, a beam splitter (not shown in the figure) is provided in the light-transmitting area 41. The beam splitter is disposed in the light-transmitting area 41 and is disposed at the corresponding position of the projection of the center line along the front surface of the ruler body 4.
[0079] In this embodiment, by setting a beam splitter at the position corresponding to the center line projection within the light-transmitting area 41, when the user observes the level, the beam splitter is equivalent to the physical center line, forming a visual physical separation between the LED 21 located on the left side of the center line and the LED 21 located on the right side of the center line, enhancing the visual baseline effect, making it easier for the user to more intuitively distinguish the left and right lighting areas, and improving the accuracy of direction identification.
[0080] The beam splitter can be configured as a partition to physically separate the LED beads 21 located on both sides of the center line. Furthermore, the partition can be made of a non-transparent material or a transparent material with a specific color, and the specific color is different from the light emission color of the LED beads 21, so that the partition can achieve a more obvious separation effect visually.
[0081] Please see Figure 1 and Figure 2 In an embodiment of this utility model, a light-transmitting protective component 42 is provided on the light-transmitting area 41. The light-transmitting protective component 42 is made of a light-transmitting material and covers the light indicator module 2.
[0082] In this embodiment, a light-transmitting protective element 42 made of light-transmitting material is provided in the light-transmitting area 41 and covers the light indicator module 2. This ensures that the light emitted by the LED bead 21 can pass through the light-transmitting protective element 42, guaranteeing the brightness and clarity of the indicator pattern. It also provides physical protection for the LED bead 21 and the circuit board 5, effectively preventing damage to the surface of the LED bead 21 or its internal components from dust, moisture, scratches, or collisions in the observation environment. This improves the product's environmental adaptability and long-term reliability under complex working conditions. Simultaneously, the light-transmitting protective element 42 can serve as an integrated appearance component, enhancing the flatness and aesthetics of the front surface of the ruler 4, further optimizing the user experience and product durability.
[0083] As an optional implementation, the light-transmitting protective component 42 can be set as a cover plate made of light-transmitting materials such as acrylic sheet or plastic sheet, thereby achieving the dual effect of light transmission and protection.
[0084] In an embodiment of this utility model, the multiple LED beads 21 are divided into three groups of LED beads 21. The first group of LED beads 21 located on the left side of the center line is inclined to the left side of the ruler body 4, the second group of LED beads 21 located on the center line is directed to the front of the ruler body 4, and the third group of LED beads 21 located on the right side of the center line is inclined to the right side of the ruler body 4.
[0085] In this embodiment, by dividing multiple LED beads 21 into three groups and setting their light emission directions differently—the first group of LED beads 21 located to the left of the center line tilts towards the left side of the ruler 4, the third group of LED beads 21 located to the right of the center line tilts towards the right side of the ruler 4, and the second group of LED beads 21 located on the center line emits light directly forward—this creates a natural directional guidance trend in the space indicated by the light pattern. When the level ruler tilts to the left, the light from the left group of LED beads 21 is more concentrated on the left side of the user's field of vision, enhancing the visual cue of leftward deviation. Similarly, the right group of LED beads 21 enhances the visual cue of rightward deviation. The group of LED beads 21 on the center line serves as a reference, assisting the user in determining whether the ruler has returned to level. This tilting scheme not only enhances the spatial mapping consistency between the pattern and the actual deflection direction but also improves the intuitiveness and anti-interference capability of directional identification by varying the angle of light projection when observed from a distance or from a side view, reducing the risk of misjudgment. It is particularly suitable for dynamic adjustment scenarios, significantly improving the response efficiency and accuracy of leveling operations.
[0086] In addition, as an optional implementation, the light indicator module 2 also includes a driving component and a light shield. The light shield is provided with several light-transmitting holes. The driving component is rotatably connected to the light shield and electrically connected to the control module 3. The control module 3 is also used to control the driving component based on the deflection direction and deflection angle detected by the sensor module 1, so that the driving component drives the light shield to rotate to the light-transmitting angle, so that the light of the lamp bead 21 in the deflection direction passes through the light-transmitting holes.
[0087] In this embodiment, a driving component electrically connected to the control module 3 and a light-shielding component with a light-transmitting hole are added. The driving component drives the light-shielding component to rotate to the corresponding light-transmitting angle according to the deflection direction and angle detected by the sensor. This allows only the light from the LEDs 21 in the deflection direction to pass through the light-transmitting hole, while the LEDs 21 in other directions are blocked by the light-shielding component. This mechanical light-shielding mechanism causes the light indicator pattern to change in real time with the tilt state, highlighting only the LEDs 21 on the deflection side, avoiding visual interference caused by multiple LEDs being lit simultaneously, and significantly improving the focus and purity of the directional indication. At the same time, the physical shielding effect of the light-shielding component can suppress stray light, enhance the contrast between bright and dark areas, and ensure that the indicator pattern remains highly recognizable even in strong light or complex backgrounds. In addition, this solution achieves pattern switching through mechanical rotation, without increasing the number of LEDs 21 or complex driving circuits, and has the advantages of low power consumption and low cost.
[0088] For ease of understanding, the following is an example of the lighting control logic for this light indicator level:
[0089] Control method 1: The LED 21 located on the left side of the center line lights up when the level is tilted to the left (or, when the level is tilted to the left, the number of LEDs 21 located on the left side of the center line lights up much more than the number of LEDs 21 located on the right side of the center line lights up, and the same applies below), the LEDs 21 located on the right side of the center line light up when the level is tilted to the right, and the LEDs located on the center line light up or are all off when the level is horizontal.
[0090] Control method 2: The LED 21 located on the left side of the center line lights up when the level is tilted to the left, and the LED 21 located on the right side of the center line lights up when the level is tilted to the right. When the level is horizontal, all LEDs 21 are either fully lit or completely off.
[0091] Control mode 3: When the LED beads 21 are arranged in a ring, when the level is horizontal, all the LEDs are on, or the LEDs on the central axis are on, or all the LEDs are off. When the level is tilted to the left, the LED beads 21 on the right side of the center line gradually change from bright to dark until the LED beads 21 on the left side of the center line are all on and the LED beads 21 on the right side of the center line are completely off. When the level is tilted to the right, the LED beads 21 on the left side of the center line gradually change from bright to dark until the LED beads 21 on the right side of the center line are all on and the LED beads 21 on the left side of the center line are completely off.
[0092] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A light-indicating level, characterized in that, include: Sensor module; A light indicator module includes multiple LED beads. The light indicator module has an LED bead mounting area with a center line that passes through the longitudinal midpoint of the LED bead mounting area and is perpendicular to the longitudinal direction of the LED bead mounting area. All of the LED beads are located within the LED bead mounting area. The control module is electrically connected to the sensor module and the plurality of LED beads respectively; as well as, The ruler body, the light indicator module, the sensor module and the control module are all housed within the ruler body; The multiple LED beads are distributed on both sides of the center line; or, the center points of some of the multiple LED beads are distributed on the center line, and the center points of other LED beads are distributed on both sides of the center line. The light indicator module is configured such that, in the working state, the control module controls multiple LED beads to light up in order to form a pattern for indicating the deflection direction.
2. The light-indicating level as described in claim 1, characterized in that, Multiple LED beads are symmetrically distributed within the LED bead mounting area; And / or, using a plane perpendicular to the longitudinal direction of the lamp bead installation area as the projection plane, the projection plane passes through the center line, and multiple lamp beads located on the left side of the projection plane form multiple left projection points on the projection plane, the maximum distance between the multiple left projection points along the center line direction is the first distance, and multiple lamp beads located on the right side of the projection plane form multiple right projection points on the projection plane, the maximum distance between the multiple right projection points along the center line direction is the second distance, and the first distance is the same as the second distance.
3. The light-indicating level as described in claim 1, characterized in that, The light indicator level also includes a circuit board, on which the sensor module, the control module, and the plurality of LED beads are encapsulated, so that the control module is electrically connected to the light indicator module and the sensor module respectively; the LED bead mounting area is located on the circuit board.
4. The light-indicating level as described in claim 3, characterized in that, The circuit board is configured as a PCB board; Multiple of the aforementioned LEDs are mounted on the PCB board; Alternatively, multiple of the aforementioned LEDs may be bonded to the PCB board.
5. The light-indicating level as described in claim 1, characterized in that, The LED bead mounting area extends longitudinally along the ruler body, and the projection of the longitudinal length of the LED bead mounting area onto the front surface of the ruler body is the first projection length, and the ratio of the first projection length to the length of the front surface of the ruler body is greater than 1 / 2.
6. The light-indicating level as described in claim 1, characterized in that, The front surface of the LED bead mounting area is parallel to the front surface of the ruler.
7. The light-indicating level as described in claim 1, characterized in that, The front surface of the ruler has a light-transmitting area, and the projections of the multiple LED beads on the front surface of the ruler are all located within the light-transmitting area.
8. The light-indicating level as described in claim 7, characterized in that, The light-transmitting area is provided with a beam splitter, which is disposed within the light-transmitting area and is located at the corresponding position of the projection of the center line along the front surface of the ruler.
9. The light-indicating level as described in claim 7, characterized in that, A light-transmitting protective component is provided on the light-transmitting area. The light-transmitting protective component is made of a light-transmitting material and covers the light indicator module.
10. The light-indicating level as described in claim 1, characterized in that, The multiple LED beads are divided into three groups. The first group of LED beads located to the left of the center line is inclined to the left of the ruler body. The second group of LED beads located on the center line is positioned directly in front of the ruler body. The third group of LED beads located to the right of the center line is inclined to the right of the ruler body.