Digital display angle leveling instrument capable of being attached to wall surface for use and working method of digital display angle leveling instrument

Abstract

The invention relates to the technical field of measuring tools, provides a digital display angle leveling instrument capable of being attached to a wall surface for use and a working method of the digital display angle leveling instrument, and solves the problems of difficulty in observation, multiple attempts, difficulty in accurate adjustment and the like when a traditional leveling instrument is used on the wall surface. The leveling instrument comprises a leveling instrument body, an angle ruler, an angle display screen, waterproof glue and an auxiliary positioning and fine tuning mechanism. The auxiliary positioning and fine adjustment mechanism is composed of an auxiliary positioning assembly and a fine adjustment assembly, and rapid positioning and accurate adjustment of the leveling instrument on the wall can be achieved. The auxiliary positioning assembly comprises an up-down sliding block, a main body and a connecting mechanism, and multi-dimensional adjustment is achieved through flexible design. The fine adjustment assembly comprises an arc-shaped kidney-shaped hole and an adjusting piece, and fine angle adjustment can be conducted. The angle ruler is further provided with an innovative rotating arm and fan disc design, so that the angle ruler can be flexibly operated in the state that the leveling instrument is attached to the wall. The working method comprises the steps of preparation, preliminary positioning, fine adjustment operation, final fixing and the like, and high precision and reliability of measurement are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring tools, and in particular to a digital angle level ruler that can be attached to a wall and a working method thereof. The present invention is applicable to fields such as construction engineering, interior decoration, industrial manufacturing, etc. that require accurate horizontal, vertical and angle measurements, and is particularly suitable for high-precision measurement and marking operations on vertical surfaces such as walls. Background Art

[0002] Traditional spirit levels usually contain one or more bubbles, and users can determine whether the object being measured is horizontal or vertical by observing the position of the bubble or the numerical display screen used to display the state of the bubble. However, with the increasing precision requirements for modern construction and decoration projects, existing spirit levels have shown some limitations in certain application scenarios.

[0003] 1. Difficulty in using the wall In construction and decoration projects, it is often necessary to measure and mark the horizontal, vertical or specific angles on the wall. However, if the level ruler is directly attached to the wall in the prior art, the following problems will be encountered: a) Difficulty in observation: The user needs to observe the level bubble on the ruler very carefully, which often requires the user to maintain an uncomfortable posture or use auxiliary tools (such as a ladder) to obtain a good viewing angle.

[0004] b) Multiple attempts: If the error is large after the first application, the user needs to remove the level ruler, adjust it and re-apply it. This process often needs to be repeated many times, which is time-consuming and laborious.

[0005] c) Difficulty in Precise Adjustment: Making minute angle adjustments on the wall is very difficult because each adjustment requires completely removing the level and repositioning it.

[0006] d) Inconvenient marking: After determining the correct position, the user needs to mark while keeping the level position unchanged, which increases the complexity of the operation and the possibility of error.

[0007] 2. Single function Traditional levels can usually only perform basic horizontal, vertical and simple angle measurement functions. In modern construction and decoration projects, more complex measurement tasks are often required, such as precise angle setting, continuous angle monitoring, etc. These requirements are difficult to meet with traditional levels.

[0008] In order to solve the above problems, some improved level rulers have been proposed. For example: Authorization announcement number CN201277859Y discloses a digital display angle level ruler, including a main ruler and a driven ruler that can rotate around the main ruler. The main ruler is provided with horizontal and vertical bubble windows, as well as an angle display. This design allows the angle value to be read directly through the angle display screen, improving the accuracy of measurement and the convenience of operation.

[0009] Authorization announcement number CN2767960Y discloses a multifunctional angle level ruler, including a main ruler, an angle ruler and a rotating mechanism. This design can not only be used for horizontal and vertical measurements, but also for drawing equidistant lines, equidistant points and arbitrary angle lines. The rotating mechanism includes a rotating body, a rotating seat, a positioning spring, a positioning steel ball and a dial, etc., which enhances the functional diversity of the level ruler.

[0010] These improved levels have solved the problem of the single function of traditional levels to a certain extent, and improved the accuracy and convenience of angle measurement. However, they still do not solve the difficulties when using them on walls, especially in terms of precise adjustment and fixing. In addition, these designs do not fully consider the need for continuous monitoring and precise adjustment on the wall. Summary of the invention

[0011] In view of this, the present invention provides a digital angle level that can be attached to a wall. By integrating an auxiliary positioning and fine-tuning mechanism, rapid positioning, precise adjustment and firm adhesion on the wall are achieved, which greatly improves the measurement accuracy and ease of use, and solves many difficulties of traditional levels in wall applications. The technical solution of the embodiment of the present invention provides a digital angle level ruler that can be attached to a wall for use, comprising: A level with a bubble level provided on it; An angle ruler, one end of which is hinged to one end of the level ruler through a rotating mechanism; An angle display screen, arranged on the level ruler, for displaying the rotation angle of the angle ruler; Waterproof glue, arranged on the back of the level ruler, for sticking to the wall; The auxiliary positioning and fine-tuning mechanism is arranged on the level ruler and includes: An auxiliary positioning component, used for adjusting the position of the level ruler before the waterproof adhesive is pasted on the wall; The fine adjustment component is used to finely adjust the angle of the level.

[0012] Beneficial effects of this technical solution: This design integrates a level ruler, an angle ruler, an angle display screen, waterproof glue, and an auxiliary positioning and fine-tuning mechanism, achieving precise positioning, angle measurement, and stable sticking on the wall. This greatly improves the accuracy and convenience of wall measurement and solves many difficulties in using traditional level rulers on walls.

[0013] Preferably, the back of the level ruler is provided with an upper track and a lower track parallel to the two long sides, respectively; the length of the angle ruler is smaller than the length of the level ruler, and when the angle ruler coincides with the center line of the long direction of the level ruler, the angle ruler is completely hidden on the back of the level ruler. The beneficial effects of the preferred technical solution: the design of the upper and lower tracks provides a moving space for the auxiliary components, and the hidden design of the angle ruler not only protects the angle ruler, but also reduces the overall thickness, thereby improving the flexibility of use and the convenience of carrying.

[0014] Preferably, the auxiliary positioning component comprises: An upper sliding block, slidingly matched with the upper track on the level ruler; the upper sliding block comprises a first sliding rod, the first sliding rod has a first connecting surface, and a groove is provided on the first connecting surface; A lower sliding block is slidably matched with the lower track on the level ruler; the lower sliding block includes a second sliding rod, the second sliding rod has a second connecting surface at a specific angle relative to the horizontal plane, and a pivot hole is provided at the center of the second connecting surface; A main body, one end of which is pivotally connected to the lower sliding block, and the other end of which is detachably connected to the upper sliding block; The connecting mechanism is arranged on the main body and is used to pre-establish a connection with the wall. Beneficial effects of the preferred technical solution: The combined design of the upper and lower sliding blocks and the main body realizes multi-dimensional adjustment capabilities, especially the special design of the lower sliding block allows flexible switching between different use states, greatly improving the adaptability and accuracy of the tool.

[0015] Preferably, the connecting mechanism comprises: A mechanism seat having an internal accommodation space; The connecting body is arranged in the mechanism seat and can slide and rotate relatively, one end of which is a pressing part and the other end is a wall connecting head.

[0016] Beneficial effects of the preferred technical solution: The design of the connection mechanism enables the level ruler to establish a connection with the wall in advance, providing a stable foundation for subsequent precise adjustment and improving the stability and accuracy of the overall operation.

[0017] Preferably, the fine-tuning component comprises: An arc-shaped waist hole is arranged on the level ruler, and its inner wall has meshing teeth and a clamping layer; The adjusting member is inserted into the arc-shaped waist hole and comprises a knob portion, gear teeth, a first positioning flange, a second positioning flange and a suction cup.

[0018] Beneficial effects of the preferred technical solution: The design of the fine-tuning component, especially the combination of the arc-shaped waist hole and the adjusting piece, realizes the fine angle adjustment of the level ruler on the wall, greatly improving the measurement accuracy.

[0019] Preferably, the arc center of the arc waist hole coincides with the center of the cross section of the wall connection head in the connection mechanism after it is connected to the wall. Beneficial effects of the preferred technical solution: The special positional relationship design of the arc waist hole and the wall connection head ensures the stability of the level ruler during fine-tuning and improves the accuracy and reliability of adjustment.

[0020] Preferably, the rotating mechanism is provided with a rotating arm, and the rotating arm is provided with a fan disk, and the fan disk rotates with the rotation of the angle ruler. The beneficial effect of the preferred technical solution: the design of the rotating arm and the fan disk makes the rotation of the angle ruler more flexible and controllable, which is convenient for operating the angle ruler when it is used on the wall, and improves the versatility of the tool.

[0021] A working method of the aforementioned digital angle level ruler that can be attached to a wall for use comprises the following steps: A. Preparation stage: Expand the auxiliary positioning component; Extend the wall connection head of the connection mechanism; B. Initial positioning: Place the wall connector in contact with the wall to establish a preliminary connection; Adjust the level ruler to a roughly horizontal position; C. Fine-tuning operation: Start the fine-tuning assembly to make the suction cup contact the wall; Turn the knob to make fine angle adjustments; D. Final fixation: Press the level ruler against the wall to make the waterproof glue adhere to the wall. Beneficial effects of the technical solution: The method provides a set of systematic operation steps, from preparation to final fixation, which ensures the precise positioning and firm adhesion of the level ruler on the wall, greatly improving the use efficiency and measurement accuracy.

[0022] Preferably, the working method further comprises the following steps: E. Angle ruler operation: When the level ruler is placed against the wall, the suction cup seat is driven to rotate by turning the knob; The suction cup seat drives the fan disc to rotate, thereby driving the angle ruler from a hidden state to an exposed state. Beneficial effects of the preferred technical solution: This step enables the angle ruler to be flexibly unfolded when the level ruler is used against the wall, increases the functional diversity of the tool in a fixed state, and improves the convenience of use.

[0023] Preferably, the preparation stage further comprises: The sliding block is moved to rotate around the second sliding rod in a direction away from the horizontal ruler; Rotate the component that cooperates with the second connecting surface relative to the pivot hole; The sliding block slides along the lower track to the matching rotation area in the middle section of the level ruler. Beneficial effects of the preferred technical solution: These preparatory steps ensure that the auxiliary positioning assembly can be correctly deployed and positioned, lay the foundation for subsequent precise adjustment, and improve the reliability of the overall operation.

[0024] Preferably, the fine-tuning operation further comprises: Press the knob toward the wall to separate the second positioning flange from the clamping layer; Continue pressing until the suction cup contacts the wall and deforms, generating suction force; Ensure that the first positioning flange enters the clamping layer and the gear teeth are engaged with the meshing teeth; The final fixation also includes: Make the first positioning flange escape from the clamping layer; Allowing the second positioning flange to enter the clamping layer; The gear teeth are separated from the meshing teeth, and the final position of the level ruler is locked. Beneficial effects of the preferred technical solution: These fine-tuning and fixing steps realize the fine adjustment and firm locking of the level ruler on the wall, ensuring the high accuracy and reliability of the final measurement result, and also facilitating subsequent continuous use.

[0025] Compared with the prior art, the technical solution of the present invention has the following advantages: The digital angle level ruler of the present invention has brought about significant improvements in many aspects through its innovative design. First, its digital display and precision fine-tuning mechanism greatly improve the measurement accuracy, eliminate reading errors, and ensure high-precision wall measurement. Its quick wall pasting function and integrated design greatly enhance the convenience of use and save a lot of time and energy. The tool can not only perform traditional horizontal and vertical measurements, but also accurately measure angles, significantly expanding the functional diversity and being suitable for various complex buildings and decoration scenes. The systematic operation steps and the design that does not require frequent removal and re-pasting improve the operating efficiency, while improving the user experience and solving the problem of difficult observation of traditional level rulers when used on walls. Multiple fixing mechanisms and locking designs improve measurement reliability and reduce human errors. In addition, the digital display and standardized operation steps promote consistency and standardization of work. The hidden design of the angle ruler and the reusable waterproof glue extend the service life of the tool, while the stable wall pasting improves the safety of high-altitude operations.

[0026] In general, this innovative digital angle level not only solves many problems when using traditional levels on walls, but also provides users with a more flexible, accurate and reliable measuring tool. It is expected to be widely used in the construction and decoration industries, significantly improving work efficiency and quality standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 : The overall three-dimensional structure diagram of the digital angle level ruler of the present invention; Figure 2 : Overall schematic diagram of the digital angle level ruler of the present invention when attached to a wall for use; Figure 3 : A partially enlarged schematic diagram of the digital angle level ruler of the present invention when it is attached to a wall for use, focusing on the auxiliary positioning and fine-tuning mechanism; Figure 4 : A three-dimensional structural diagram of the back of the digital angle level ruler of the present invention, showing the angle ruler in a hidden state; Figure 5 : Another angle three-dimensional structure diagram of the back of the digital angle level ruler of the present invention, the ruler body is reduced to facilitate observation of the internal structure; Figure 6 : Figure 5 The partial enlarged view at B in the middle shows the structure of the auxiliary positioning component in detail; Figure 7 : A partial stereoscopic view of the back of the level ruler, showing the auxiliary positioning component moved to the middle of the ruler body; Figure 8 : based on Figure 7 , showing the state where the main body begins to rotate around the pivot axis; Fig. 9 : based on Figure 8 , showing an intermediate state in which the main body is further rotated about the pivot axis; Fig.10 : based on Fig. 9 , showing the final state where the subject is fully rotated into position; Fig.11 : Schematic diagram of the auxiliary positioning assembly partially disassembled when the angle ruler is opened, showing the relationship between the various components; Fig.12 : Another angle diagram of the auxiliary positioning component partially disassembled when the angle ruler is opened, providing structural details from different perspectives; Fig.13 : Fig.11 The partial enlarged view at C in the middle shows the key structure of the auxiliary positioning component in detail; Fig.14 : Schematic diagram of the disassembled part of the rotating mechanism and the angle adjusting part, showing the internal structure and connection relationship; Fig.15 : Figure 2 The partial enlarged view at A in the middle shows in detail the working state of the fine-tuning component when the level ruler is attached to the wall; Fig.16 : It is a structural schematic diagram of the technical solution of Example 2, showing the base and the operating hole; Fig.17 : It is a structural diagram of the technical solution of Example 2, showing the base and the operating hole from the other direction.

[0029] Reference numerals: level ruler 10, angle ruler 30, rotation mechanism 20, angle display screen 40, waterproof glue 50, auxiliary positioning and fine-tuning mechanism 60, auxiliary positioning assembly 61, fine-tuning assembly 62, upper track 11, lower track 12, upper sliding block 611, first sliding rod 612, first connecting surface 01, groove 613, lower sliding block 614, second sliding rod 615, base 616, operating hole 617, second connecting surface 02, pivot hole 03, avoid Slot 04, connecting mating surface 05, pivot axis 06, main body 07, connecting mechanism 09, mechanism seat 091, connecting body 092, pressing portion 093, wall connecting head 094, arc waist hole 621, meshing teeth 622, clamping layer 623, adjusting member 624, knob portion 625, gear teeth 626, first positioning flange 261, second positioning flange 271, suction cup 281, rotating arm 21, fan disc 22, suction cup seat 628, matching rotating area 08. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention will be described in detail below in conjunction with all the accompanying drawings. It should be noted that the following description is only a preferred embodiment of the present invention, rather than a limitation of the present invention. It should be understood by those skilled in the art that various modifications and variations may be made to the present invention without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the attached claims.

[0031] Embodiment 1: A digital angle level ruler that can be attached to a wall. For ease of description and understanding, refer to Figure 1 The side with digital display is defined as the front side, the reverse side is defined as the back side, the upward direction of the positive value display is defined as the top, and the reverse direction is defined as the bottom.

[0032] The utility model mainly comprises the following parts: a level ruler 10, an angle ruler 30, a rotating mechanism 20 for rotating the angle ruler 30 around the level ruler 10, an angle display screen 40 for displaying the rotating angle of the angle ruler 30, a waterproof adhesive 50 provided on the level ruler 10 for pasting to the wall, and an auxiliary positioning and fine-tuning mechanism 60 provided on the level ruler 10 for adjusting the precise position of the level ruler 10 before the waterproof adhesive 50 is pasted to the wall.

[0033] The level 10 is usually in the shape of a long strip, and its length is much greater than the width of the cross section. The cross section is often designed to be rectangular, but it is not limited to this. Other suitable shapes, such as octagonal or elliptical, can be adopted according to actual needs to meet the needs of different usage scenarios. The level bubble in the level 10 is usually provided in multiple directions such as horizontal, vertical and 45-degree angles. The user can choose a suitable level bubble for measurement as needed. On the back of the level 10, near the upper and lower long sides, each is provided with a track that is parallel to the side and is of equal length or customized according to a set length. For the convenience of description and distinction, the one near the top is defined as the upper track 11, and the one near the bottom is defined as the lower track 12. These tracks can be used to install other accessories or auxiliary devices to increase the functionality of the level.

[0034] The length of the angle ruler 30 is smaller than that of the level ruler 10, one end of which is hinged to one end of the level ruler 10 through the rotating mechanism 20, and the other end is a free end. The angle ruler 30 is provided with scale lines, and the angle value can be directly read, for example, a large scale every 5 degrees, and a small scale every 1 degree, which is convenient for accurate measurement. The rotating mechanism 20 is arranged at the end of the level ruler 10 near one end. When the angle ruler 30 coincides with the center line of the long direction of the level ruler 10, the angle ruler 30 is completely hidden on the back of the level ruler 10 when viewed from the front. At this time, a small part is left at both ends of the back of the level ruler 10 that is not covered by the angle ruler 30, and the reserved space is used to arrange the auxiliary positioning and fine-tuning mechanism 60.

[0035] The components in the rotating mechanism 20 have damping characteristics to ensure the stability and accuracy of the angle adjustment. This damping characteristic can be achieved by means of friction pads or damping oil, etc., so that the angle adjustment is both flexible and stable. The angle ruler 30 is located on the back of the level ruler 10, and the two are basically in contact with each other. This design can reduce the overall thickness and improve the convenience of use.

[0036] The angle display screen 40 is arranged corresponding to the rotating mechanism 20, and some parts of the two are connected (the connection is a prior art and will not be described), and the display side is located on the front side of the angle ruler 30. The angle display screen 40 can display the angle value accurate to 0.1 degree, and can also display other relevant information, such as battery power, measurement mode, etc.

[0037] The waterproof glue 50 is arranged on the back of both ends of the level ruler 10 or on the end caps 13. It is made of high-strength, reusable materials (such as specially formulated silica gel), which not only ensures the adhesion strength with the wall, but also facilitates cleaning and multiple uses. This design allows the level ruler to be firmly attached to the wall for long-term measurement or marking.

[0038] The auxiliary positioning and fine-tuning mechanism 60 is one of the core innovations of the present invention, and includes an auxiliary positioning component 61 and a fine-tuning component 62. These two components enable the level 10 to be flexibly applied in different scenarios, greatly improving its practicality and accuracy. Specifically, it can meet the application requirements of the level 10 in two states: 1. Normal use status: Reference Figure 4-5 When the level 10 is used normally and the angle ruler 30 is not needed, a part of the auxiliary positioning assembly 61 can be clamped to the angle ruler 30. (The auxiliary positioning assembly 61 unlocks the part clamped to the angle ruler 30 by sliding) Figure 4 The card connection status is shown, and Figure 5 The detached state is shown. This snap-on design cleverly limits the rotation of the angle ruler 30, so that the use of the level ruler 10 in this state is completely consistent with that of a traditional level ruler. For example, the user can easily measure the horizontality of a desktop, the verticality of a wall, or check the flatness of a floor, just like using an ordinary level ruler.

[0039] 2. Wall pasting status: When the level ruler 10 needs to be attached to a wall for use, the auxiliary positioning component 61 and the fine adjustment component 62 will work together to ensure the accurate positioning and fine adjustment of the level ruler 10 on the wall. This application is particularly suitable for scenes that require monitoring or precise marking, such as determining the precise horizontal line during interior decoration during construction.

[0040] The specific structure of the auxiliary positioning component 61 includes the following key parts: 1) Upper sliding block 611: The sliding fit on the upper rail 11 ensures smooth movement.

[0041] Its working stroke is limited to a small range on one side of the free end of the angle ruler 30 when the angle ruler 30 is hidden (refer to Figure 6-8 ). This design not only ensures the function is realized, but also avoids unnecessary interference.

[0042] The first sliding rod 612 is provided with a first connecting surface 01 to provide a connection interface for other components. A groove 613 is provided on the first connecting surface 01 to be connected with other components of the auxiliary positioning assembly 61. This connection design makes the connection between the components firm and removable, which is convenient for maintenance and replacement.

[0043] 2) Downward sliding block 614: The sliding fit with the lower track 12 enables stable movement.

[0044] Its working stroke covers the middle section of the level ruler 10, providing a larger adjustment range.

[0045] The second sliding rod 615 includes a second sliding rod 615 that slides with the lower track 12 and has a second connecting surface 02 that is at a specific angle relative to the horizontal plane. A pivot hole 03 is provided at the center of the second connecting surface 02 (see Fig.12 ), providing a fulcrum for rotation. An avoidance groove 04 is provided adjacent to the second sliding rod 615 to increase the flexibility of the structure.

[0046] Special note: The design of the lower slide block 614 has multiple functions, which are reflected in the following two key features: ① Rotation function: The lower sliding block 614 can rotate around the second sliding rod 615 to a specific angle away from the horizontal ruler. This rotation angle can at least disengage the component that cooperates with the groove 613. The importance of this design is that it allows the auxiliary positioning assembly 61 to flexibly switch between different usage states.

[0047] For example, in normal use, the lower sliding block 614 may fit tightly with the level ruler 10; and when it is necessary to switch to the wall-sticking state, the user can easily rotate the lower sliding block 614 to move it out of its original position, creating space for subsequent operations.

[0048] ② Switching function: The specific angle design of the second connection surface 02 enables the auxiliary positioning component 61 to switch between two application states. The specific operation is as follows: In one application state (e.g., normal use state), the component matched with the second connection surface 02 first rotates 180 degrees relative to the pivot hole 03. Then, combined with the rotation of the lower sliding block 614 around the second sliding rod 615, the auxiliary positioning assembly 61 can be switched to another application state (e.g., wall pasting state) through the combination of these two steps.

[0049] This multifunctional design greatly enhances the practicality of the level. Users can quickly switch between the two usage modes according to different work needs without changing tools or making complicated adjustments.

[0050] 3) Main body of the plate structure 07: One end has a connection mating surface 05, and a pivot shaft 06 is provided at its center to tightly and rotatably fit with the pivot hole 03. The other end has a snap-fit ​​portion that can be detachably snap-fitted with the groove 613. This detachable design facilitates assembly and maintenance.

[0051] 4) Cooperate with rotation area 08: It is arranged on the lower track 12 in the middle section of the level 10. Its main function is to provide a larger rotation range for the lower sliding block 614 at this position, increasing the flexibility of adjustment. It includes an avoidance notch 081 and a retention portion 082. The design of the avoidance notch 081 ensures that the rotation of the lower sliding block 614 is not hindered, making the adjustment process smoother; the retention portion 082 will enter the avoidance groove 04 when the lower sliding block 614 rotates. This design prevents the lower sliding block 614 from leaving the lower track 12, ensuring the stability and safety of the structure.

[0052] 5) A connection mechanism 09 provided on the main body 07 for pre-establishing connection with the wall: Reference Figure 3-13 The connection mechanism 09 includes a mechanism seat 091 and a connection body 092. The mechanism seat 091 has an outer wall and an internal accommodation space, and its internal accommodation space is arranged perpendicular to the plate surface of the main body 07. This design ensures the stability and space utilization efficiency of the connection mechanism 09. The connection body 092 is arranged in the mechanism seat 091 and can slide and rotate relatively. One end is a pressing part 093 for easy operation; the other end is a wall connection head 094 for establishing a preliminary connection with the wall.

[0053] The wall connector 094 is designed in a variety of ways, such as a suction cup, a micro suction device, or a specially designed adhesive surface, to adapt to walls of different materials and surface conditions. This flexibility enables the level 10 to be effectively used in a variety of working environments.

[0054] When the level ruler 10 is in normal use, the mechanism seat 091 is hidden in the space on the back of the level ruler 10, which does not affect the daily measurement operation. Figure 3 The fully extended position is shown. This design enables quick conversion of functions and improves work efficiency.

[0055] The steps to use are as follows: a. Operate the pressing portion 093 to slide the connector 092 within the mechanism seat 091, and the wall connector 094 extends therefrom.

[0056] b. Place the wall connector 094 in contact with the wall to establish a preliminary connection.

[0057] c. Using the rotating design of the connector 092, the wall connector 094 is used as a support and positioning point to adjust the angle of the level 10. For example, the operator can hold the body of the level 10 and adjust it to a horizontal position.

[0058] d. After the angle adjustment is completed, press the ruler body against the wall to make the waterproof glue 50 adhere to the wall to achieve final fixation.

[0059] Combined with the aforementioned auxiliary positioning component 61 and fine adjustment component 62, the connection mechanism 09 further enhances the functionality of the level ruler 10. The operator can first achieve rough pre-positioning through the connection mechanism 09, then make fine adjustments using the fine adjustment component 62, and finally achieve stable bonding through the waterproof glue 50. This multi-level positioning and adjustment mechanism ensures high accuracy and reliability of measurement.

[0060] The fine adjustment assembly 62 is disposed as a whole in the space provided in the level ruler 10 near the rotating mechanism 20. Figure 2 , Figure 14-15 , its specific structure includes the following key parts: 1) Arc waist hole 621: It is set on the body of the level 10, next to the angle display screen 40. The arc center coincides with the center of the cross section of the wall connector 094 in the auxiliary positioning component 61 after it is connected to the wall. The back of the level 10 extends the side wall of the arc waist hole 621 to increase the structural strength and stability. The inner wall of the arc waist hole 621 has meshing teeth 622 and a clamping layer 623 with elastic deformation characteristics. The clamping layer 623 can be made of materials such as rubber to provide a reliable clamping effect and a buffering effect.

[0061] 2) Adjustment member 624: inserted into the arc-shaped waist hole 621, and including the following coaxially arranged components from the front to the back of the level 10: Knob portion 625: an external structure for user operation.

[0062] Gear teeth 626 cooperate with the meshing teeth 622 in the arc-shaped waist hole 621 .

[0063] The first positioning flange 261 is used to cooperate with the clamping layer 623 .

[0064] Transition section 627: connects various components.

[0065] The second positioning flange 271 is used to cooperate with the clamping layer 623 to achieve initial positioning.

[0066] Suction cup seat 628: used for installing the suction cup.

[0067] Suction cup 281: installed in suction cup seat 628, can rotate around its axis, knob portion 625 can control the rotation of suction cup seat 628, but the rotation of suction cup 281 is not restricted. Suction cup 281 is made of rubber or soft plastic, and generates adsorption force through deformation.

[0068] Working principle and usage of adjustment piece 624: 1. Non-working state: the adjusting member 624 is located in the arc-shaped middle part of the arc-shaped waist hole 621, and the second positioning flange 271 is in contact with the clamping layer 623 to achieve initial pre-positioning.

[0069] 2. Working state conversion: When the level ruler 10 needs to be pasted on the wall for use, the operation steps are as follows: a. The wall connection head 094 of the connection mechanism 09 is used to complete the preliminary connection with the wall.

[0070] b. Pressing the knob portion 625 toward the wall surface causes the second positioning flange 271 to be separated from the card-joining layer 623 .

[0071] c. Continue pressing until the suction cup 281 contacts the wall and deforms, generating an adsorption force.

[0072] d. At this time, the first positioning flange 261 enters the clamping layer 623, and the gear teeth 626 mesh with the meshing teeth 622.

[0073] 3. Fine-tuning operation: Turn the knob 625 to the left or right, and the gear 626 drives the meshing teeth 622 to move, so that the level ruler 10 as a whole can be finely adjusted in angle with the cross-sectional center of the wall connector 094 as the rotation center.

[0074] This design combines the advantages of the auxiliary positioning component 61 and the fine adjustment component 62, and realizes the rapid fixation and precise adjustment of the level ruler 10 on the wall. The user can first achieve rough pre-positioning through the connecting mechanism 09, and then use the fine adjustment component 62 to make fine adjustments to meet various precision measurement and marking needs. This innovative design significantly improves the practicality and accuracy of the level ruler in the fields of construction, interior decoration, etc.

[0075] See attached Figure 1-15 The method of using the level ruler 10 includes: 1. Normal use status 1. Make sure the angle ruler 30 is completely hidden behind the level ruler 10.

[0076] 2. A portion of the auxiliary positioning assembly 61 is engaged with the angle ruler 30 to limit its rotation.

[0077] 3. Use the vial on the level ruler 10 or the display screen showing the vial status to perform horizontal, vertical or 45-degree angle measurements.

[0078] 4. When angle measurement is required, use the angle ruler 30 and the angle display screen 40.

[0079] 2. Wall pasting status a) Preparation 1. Operation of the auxiliary positioning assembly 61: The lower sliding block 614 is rotated around the second sliding rod 615 in a direction away from the level ruler. The rotation angle should be sufficient to completely disengage the component matched with the groove 613.

[0080] 2. Operation of the main body 07: Rotate the component matched with the second connecting surface 02 180 degrees relative to the pivot hole 03 .

[0081] 3. The lower sliding block 614 moves: the lower sliding block 614 slides along the lower track 12 to the matching rotation area 08 in the middle section of the level ruler 10. The lower sliding block 614 enters the avoidance gap 081, and the reserved portion 082 enters the avoidance groove 04.

[0082] 4. The connecting mechanism 09 is exposed: the main body 07 is turned over and moved so that the mechanism seat 091 is fully exposed from the space reserved on the back of the level 10 .

[0083] 5. Preparation of the wall connector 094: Operate the pressing portion 093 to slide the connector 092 in the mechanism seat 091. Ensure that the wall connector 094 is fully extended.

[0084] b) Preliminary pre-positioning 1. Preliminary connection to the wall: Place the wall connector 094 in contact with the wall to establish a preliminary connection.

[0085] 2. Angle adjustment of the level ruler 10: Using the rotation design of the connector 092, with the wall connector 094 as the support positioning point, adjust the level ruler 10 to a roughly horizontal position. Refer to the level bubble and the angle display screen 40 for rough positioning.

[0086] c) Fine-tuning operation 1. Start the fine-tuning assembly 62: Press the knob 625 toward the wall. The second positioning flange 271 is separated from the clamping layer 623. Continue pressing until the suction cup 281 contacts the wall and deforms to generate adsorption force. Ensure that the first positioning flange 261 enters the clamping layer 623. At the same time, the gear teeth 626 are engaged with the meshing teeth 622.

[0087] 2. Fine angle adjustment: Turn the knob 625 left or right. The level 10 as a whole will be adjusted with the cross-sectional center of the wall connector 094 as the rotation center.

[0088] d) Final fixation Press the 10-inch body of the level against the wall.

[0089] The waterproof glue 50 is bonded to the wall surface to achieve final fixation. During this process, the following changes occur simultaneously: the first positioning flange 261 is disengaged from the clamping layer 623. The second positioning flange 271 enters the clamping layer 623. The gear teeth 626 are separated from the meshing teeth 622. These changes cause the knob portion 625 to no longer affect the angle of the level 10, thereby locking the final position.

[0090] 3. State switching For regular use and wall pasting: follow the above steps.

[0091] Wall pasting for normal use: Carefully remove the level 10. Reverse the above steps and restore the components to their original positions. Make sure that the angle ruler 30 is hidden behind the level 10 again.

[0092] In some embodiments, in order to make the application of the level 10 more flexible, especially when the angle ruler 30 needs to be frequently switched between the hidden and exposed states when the level ruler 10 is used against a wall, the rotating mechanism 20 is improved. Specifically, a rotating arm 21 is added to the rotating mechanism 20, and a fan disc 22 is provided on the rotating arm 21, and the fan disc 22 rotates with the rotation of the angle ruler 30. When the angle ruler 30 is hidden, the back projection of the fan disc 22 partially overlaps with the suction cup seat 628. After the level ruler 10 is attached to the wall, when the angle ruler 30 is hidden on the back of the level ruler 10, the fan disc 22 and the suction cup seat 628 will conflict. At this time, by rotating the knob part 625, the suction cup seat 628 can drive the fan disc 22 to rotate, thereby driving the angle ruler 30 from the hidden state to the exposed state. This design makes it convenient to operate the angle ruler 30 even when the level ruler 10 is used against a wall, and realizes the flexible switching between its hidden and exposed states, so as to facilitate the angle setting. After the operation is completed, the angle ruler 30 can be returned to the hidden state by reverse operation.

[0093] In order to improve the accuracy and stability of the operation, a tooth structure or an anti-slip texture can be added to the contact portion between the fan disc 22 and the suction cup seat 628, so as to ensure that the transmission between the two is more reliable and also provide more precise angle adjustment.

[0094] In some embodiments, protective covers are provided on the waterproof glue 50 and the wall connection head 094 to prevent dust.

[0095] In some embodiments, a limiter is provided in the lower rail 12 for the lower sliding block 614 to move toward the avoidance groove 04 , and the limiter is used to limit the travel of the lower sliding block 614 to move toward the avoidance groove 04 .

[0096] Embodiment 2: In some application scenarios, there may not be enough space under the level ruler for the auxiliary positioning component 61 to flip down for pre-positioning. In view of this situation, we have designed the auxiliary positioning component 61 differently so that it can complete the pre-positioning operation without flipping down, so that the pre-positioning function can be achieved by keeping it on the ruler. Figure 16-17 , the specific design is as follows: 1. Integrated base design: The auxiliary positioning assembly 61 adopts an integrated design, including a base 616. The base 616 integrates the original main body 07, the upper sliding block 611 and the lower sliding block 614 to form a compact overall structure. This design not only simplifies the assembly, but also improves overall stability and durability.

[0097] 2. Retention and optimization of connection mechanism: The basic structure of the connecting mechanism 09 remains unchanged and is still mounted on the plate surface of the base 616. However, in order to adapt to the new operation mode, it may need to be fine-tuned: The length or stroke of the connector 092 is adjusted to ensure that it can be effectively extended and retracted in the new operating mode.

[0098] 3. Operation hole design: On the level ruler 10, an operating hole 617 is provided on one side of the base 616 for locking the angle ruler 30. This operating hole has the following features: a. The size and shape are optimized to facilitate operation without affecting the structural strength of the level.

[0099] b. When the base 616 slides to unlock the angle ruler 30, the operating hole 617 at least partially overlaps with the wall connection head 094 of the connection mechanism 09.

[0100] c. The edge of the operating hole 617 may need to be processed, such as chamfering or rubber bushing, to improve the comfort and safety of use.

[0101] 4. Operation process: a. The user first unlocks the angle ruler 30 by sliding the base 616.

[0102] b. After unlocking, the operating hole 617 is aligned with the wall connection head 094.

[0103] c. The user can directly press the wall connector 094 through the operation hole 617 to achieve a preliminary connection with the wall.

[0104] d. Once connected, the user can fine-tune the position and angle of the level.

[0105] 5. Multifunctional design considerations: Consider adding a quick lock / unlock mechanism to the base 616 to facilitate users to quickly switch between regular use and wall sticking mode.

[0106] Visual or tactile indications are added around the operating hole 617 to help the user to operate accurately under different light conditions.

[0107] Although the present invention has been disclosed in conjunction with certain embodiments shown and described in detail, various modifications and improvements thereto will be readily apparent to those skilled in the art having benefit of the disclosure herein. Therefore, the spirit and scope of the present invention will not be limited by the foregoing examples, but will be understood in the broadest sense permitted by law.

[0108] All documents cited herein are hereby incorporated by reference in their entirety for all purposes.

Claims

1. A digital angle level that can be attached to a wall, characterized in that: include: A level ruler (10) on which a bubble level is provided; An angle ruler (30), one end of which is hinged to one end of the level ruler (10) via a rotating mechanism (20); An angle display screen (40), arranged on the level ruler (10), and used for displaying the rotation angle of the angle ruler (30); Waterproof glue (50), arranged on the back of the level (10) and used for sticking to the wall; The auxiliary positioning and fine-tuning mechanism (60) is arranged on the level ruler (10) and comprises: An auxiliary positioning component (61) is used to adjust the position of the level ruler (10) before the waterproof glue (50) is pasted on the wall; The fine adjustment component (62) is used to finely adjust the angle of the level ruler (10).

2. The digital angle level ruler that can be attached to a wall according to claim 1, characterized in that: An upper track (11) and a lower track (12) parallel to the two long sides are respectively arranged on the back of the level (10); the length of the angle ruler (30) is smaller than the length of the level (10); when the angle ruler (30) coincides with the center line of the long direction of the level (10), the angle ruler (30) is completely hidden on the back of the level (10).

3. The digital angle level ruler that can be attached to a wall according to claim 2, characterized in that: The auxiliary positioning component (61) comprises: An upper sliding block (611) is slidably engaged with an upper track (11) on the level ruler (10); the upper sliding block (611) comprises a first sliding rod (612), the first sliding rod (612) has a first connecting surface (01), and a groove (613) is provided on the first connecting surface (01); A lower sliding block (614) is slidably engaged with a lower track (12) on the level ruler (10); the lower sliding block (614) comprises a second sliding rod (615), the second sliding rod (615) has a second connecting surface (02) at a specific angle relative to the horizontal plane, and a pivot hole (03) is provided at the center of the second connecting surface (02); A main body (07), one end of which is pivotally connected to the lower sliding block (614), and the other end of which is detachably connected to the upper sliding block (611); The connection mechanism (09) is arranged on the main body (07) and is used to establish a connection with the wall in advance.

4. The digital angle level ruler that can be attached to a wall according to claim 2, characterized in that: The auxiliary positioning component (61) comprises: A base (616) which is an integrated structure; A connecting mechanism (09) is mounted on the plate surface of the base (616); An operating hole (617) is provided on the level ruler (10) and is located on one side of the base (616) for locking the angle ruler (30); When the base (616) slides to unlock the angle ruler (30), the operator can press the connection mechanism (09) through the operation hole (617) to connect with the wall, thereby completing the pre-positioning operation without flipping downward.

5. The digital angle level ruler that can be attached to a wall for use according to any one of claims 3 or 4, characterized in that: The connecting mechanism (09) comprises: The mechanism seat (091) has an internal accommodation space; The connecting body (092) is arranged in the mechanism seat (091) and can slide and rotate relatively. One end of the connecting body (092) is a pressing part (093) and the other end is a wall connecting head (094).

6. The digital angle level ruler that can be attached to a wall according to claim 5, characterized in that: The fine-tuning component (62) comprises: An arc-shaped waist hole (621) is arranged on the level ruler (10), and its inner wall has meshing teeth (622) and a clamping layer (623); The adjusting member (624) is inserted into the arc-shaped waist hole (621), and comprises a knob portion (625), gear teeth (626), a first positioning flange (261), a second positioning flange (271) and a suction cup (281).

7. The digital angle level ruler that can be attached to a wall according to claim 6, characterized in that: The arc center of the arc-shaped waist hole (621) coincides with the center of the cross section of the wall connection head (094) in the connection mechanism (09) after it is connected to the wall.

8. The digital angle level ruler that can be attached to a wall according to claim 1, characterized in that: The rotating mechanism (20) is provided with a rotating arm (21), and the rotating arm (21) is provided with a fan disc (22), and the fan disc (22) rotates along with the rotation of the angle ruler (30).

9. A method for operating the digital angle level ruler that can be attached to a wall as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: A. Preparation stage: Expanding the auxiliary positioning component (61); Protruding the wall connection head (094) of the connection mechanism (09); B. Initial positioning: Place the wall connector (094) in contact with the wall to establish a preliminary connection; Adjust the level ruler (10) to a roughly horizontal position; C. Fine-tuning operation: Activate the fine adjustment assembly (62) to make the suction cup (281) contact the wall surface; Turning the knob (625) to perform fine angle adjustment; D. Final fixation: The level ruler (10) is pressed against the wall surface to make the waterproof glue (50) adhere to the wall surface.

10. The working method of the digital angle level that can be attached to a wall according to claim 9, characterized in that: The following steps are also included: E. Angle ruler operation: When the level ruler (10) is used against a wall, the suction cup seat (628) is driven to rotate by rotating the knob portion (625); The suction cup seat (628) drives the fan disc (22) to rotate, thereby driving the angle ruler (30) to change from a hidden state to an exposed state.

11. The working method of the digital angle level ruler that can be attached to a wall according to claim 9, characterized in that: The preparation stage also includes: The lower sliding block (614) is rotated around the second sliding rod (615) in a direction away from the level ruler; Rotate the component matched with the second connection surface (02) by 180 degrees relative to the pivot hole (03); The lower sliding block (614) slides along the lower track (12) to the matching rotation area (08) in the middle section of the level ruler (10).

12. The working method of the digital angle level ruler that can be attached to a wall according to claim 9, characterized in that: The fine-tuning operation also includes: Pressing the knob portion (625) toward the wall surface to separate the second positioning flange (271) from the clamping layer (623); Continue pressing until the suction cup (281) contacts the wall and deforms, generating an adsorption force; Ensure that the first positioning flange (261) enters the clamping layer (623), and at the same time the gear teeth (626) are meshed with the meshing teeth (622); The final fixation also includes: The first positioning flange (261) is separated from the clamping layer (623); Allowing the second positioning flange (271) to enter the clamping layer (623); The gear teeth (626) are separated from the meshing teeth (622) to lock the final position of the level (10).

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