Digital display angle level that can be attached to the wall and its working method

Abstract

The present invention relates to the technical field of measuring tools, and provides a digital display angle level that can be used by being attached to a wall surface and its working method, solving the problems such as difficult observation, multiple attempts, and difficult precise adjustment existing when a traditional level is used on a wall surface. The level includes a level body, an angle scale, an angle display screen, waterproof glue, and an auxiliary positioning and fine-tuning mechanism. The auxiliary positioning and fine-tuning mechanism is composed of an auxiliary positioning component and a fine-tuning component, and can achieve rapid positioning and precise adjustment of the level on the wall surface. The auxiliary positioning component includes an upper and lower sliding block, a main body, and a connecting mechanism, and realizes multi-dimensional adjustment through a flexible design. The fine-tuning component includes an arc-shaped waist hole and an adjusting member, and can perform fine angle adjustment. The present invention is also equipped with an innovative swivel arm and sector disk design, enabling the angle scale to be flexibly operated when the level is attached to the wall. Its working method includes steps such as preparation, preliminary positioning, fine-tuning operation, and final fixation, ensuring high-precision and reliable measurement.

Description

Technical Field

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

[0002] Traditional level rulers usually include one or more spirit levels. Users determine whether the object to be measured is in a horizontal or vertical state by observing the position of the spirit level or the numerical display screen used to show the state of the spirit level. However, with the continuous improvement of the accuracy requirements in modern construction and decoration projects, the existing level rulers have shown some limitations in certain application scenarios.

[0003] 1. Difficulties in using on wall surfaces

[0004] In construction and decoration projects, it is often necessary to perform horizontal, vertical, or specific angle measurements and markings on wall surfaces. However, if the level ruler is directly attached to the wall surface for use in the prior art, the following problems will be encountered:

[0005] a) Difficult to observe: Users need to very carefully observe the display of the spirit level on the ruler body, which often requires users to maintain uncomfortable postures or use auxiliary tools (such as ladders) to obtain a good viewing angle.

[0006] b) Multiple attempts: If a large error is found after the first attachment, the user needs to remove the level ruler, then make adjustments and reattach it. This process often needs to be repeated multiple times, which is both time-consuming and laborious.

[0007] c) Difficult to make precise adjustments: It is very difficult to make small angle adjustments on the wall surface because each adjustment requires completely removing the level ruler and repositioning it.

[0008] d) Inconvenient to mark: After determining the correct position, the user also needs to make a mark while keeping the position of the level ruler unchanged, which increases the complexity of the operation and the possibility of errors.

[0009] 2. Single function

[0010] Traditional level rulers usually can only perform basic horizontal, vertical, and simple angle measurement functions. In modern construction and decoration projects, it is often necessary to perform more complex measurement tasks, such as precise angle setting, continuous angle monitoring, etc., and these requirements are difficult to be met by traditional level rulers.

[0011] To solve the above problems, some improved level rulers have been proposed. For example:

[0012] The authorized announcement number CN201277859Y discloses a digital display angle level, which includes a main scale and a driven scale that can rotate around it. The main scale is provided with horizontal and vertical bubble windows, as well as an angle display. This design allows the angle value to be directly read through the angle display screen, improving the measurement accuracy and operation convenience.

[0013] The authorized announcement number CN2767960Y discloses a multi-functional angle level, which includes a main scale, an angle scale 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 scale disk, etc., enhancing the functional diversity of the level.

[0014] These improved levels have solved the problem of the single function of traditional levels to a certain extent, improving the accuracy and convenience of angle measurement. However, they still do not well solve the difficulties in using on the wall surface, especially in terms of precise adjustment and fixation. In addition, these designs do not fully consider the needs of continuous monitoring and precise adjustment on the wall surface. Summary of the Invention

[0015] In view of this, the present invention provides a digital display angle level that can be attached to the wall surface. By integrating an auxiliary positioning and fine-tuning mechanism, it realizes rapid positioning, precise adjustment and stable pasting on the wall surface, greatly improving the measurement accuracy and use convenience, and solving a number of difficulties in the application of traditional levels on the wall surface.

[0016] The technical solution of the embodiment of the present invention provides a digital display angle level that can be attached to the wall surface, including:

[0017] A level, on which a spirit level is provided;

[0018] An angle scale, one end of which is hinged to one end of the level through a rotating mechanism;

[0019] An angle display screen, which is arranged on the level and used to display the rotation angle of the angle scale;

[0020] A waterproof glue, which is arranged on the back of the level and used to paste with the wall surface;

[0021] An auxiliary positioning and fine-tuning mechanism, which is arranged on the level and includes:

[0022] An auxiliary positioning component, which is used to adjust the position of the level before the waterproof glue is pasted on the wall surface;

[0023] A fine-tuning component, which is used to finely adjust the angle of the level.

[0024] Advantages of this technical solution: This design integrates a spirit level, an angle gauge, an angle display screen, waterproof glue, and an auxiliary positioning and fine-tuning mechanism, achieving precise positioning, angle measurement, and stable pasting on the wall surface. This greatly improves the accuracy and convenience of wall measurement and solves multiple difficulties of traditional spirit levels when used on the wall surface.

[0025] Preferably, upper and lower tracks parallel to the edges are respectively provided near the upper and lower long edges on the back of the spirit level; the length of the angle gauge is less than that of the spirit level, and when the angle gauge coincides with the center line in the length direction of the spirit level, the angle gauge is completely hidden behind the spirit level. Advantages 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 gauge not only protects the angle gauge but also reduces the overall thickness, improving the flexibility in use and the convenience in carrying.

[0026] Preferably, the auxiliary positioning component includes:

[0027] An upper sliding block, slidably fitted on the upper track of the spirit level; the upper sliding block includes a first sliding rod, and the first sliding rod has a first connecting surface, and a groove is provided on the first connecting surface;

[0028] A lower sliding block, slidably fitted on the lower track of the spirit level; the lower sliding block includes a second sliding rod, and 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;

[0029] A main body, one end of which is pivotally connected to the lower sliding block, and the other end is detachably clamped to the upper sliding block;

[0030] A connecting mechanism, provided on the main body, for pre-establishing a connection with the wall surface. Advantages of the preferred technical solution: The combined design of the upper and lower sliding blocks and the main body realizes multi-dimensional adjustment capabilities. In particular, the special design of the lower sliding block allows for flexible switching between different usage states, greatly improving the adaptability and accuracy of the tool.

[0031] Preferably, the connecting mechanism includes:

[0032] A mechanism seat, having an internal accommodation space;

[0033] A connecting body, provided in the mechanism seat, capable of relative sliding and rotation, with one end being a pressing part and the other end being a wall surface connecting head.

[0034] Advantages of the preferred technical solution: The design of the connecting mechanism enables the spirit level to pre-establish a connection with the wall surface, providing a stable foundation for subsequent precise adjustment and improving the stability and accuracy of the overall operation.

[0035] Preferably, the fine-tuning component includes:

[0036] An arc-shaped waist hole is provided on the spirit level, and its inner wall has meshing teeth and a clamping layer;

[0037] An adjusting member is inserted into the arc-shaped waist hole and includes a knob portion, gear teeth, a first positioning flange, a second positioning flange, and a suction cup.

[0038] Advantages of the preferred technical solution: The design of the fine-tuning component, especially the combination of the arc-shaped waist hole and the adjusting member, realizes the fine angle adjustment of the spirit level on the wall surface, greatly improving the measurement accuracy.

[0039] Preferably, the center of the arc of the arc-shaped waist hole coincides with the center of the cross-section after the wall connection head in the connection mechanism is connected to the wall. Advantages of the preferred technical solution: The special positional relationship design between the arc-shaped waist hole and the wall connection head ensures the stability of the spirit level during the fine-tuning process, improving the accuracy and reliability of the adjustment.

[0040] Preferably, a rotating arm is provided on the rotating mechanism, and a fan-shaped disk is provided on the rotating arm. The fan-shaped disk rotates with the rotation of the angle scale. Advantages of the preferred technical solution: The design of the rotating arm and the fan-shaped disk makes the rotation of the angle scale more flexible and controllable, facilitating the operation of the angle scale in the wall-mounted state and improving the versatility of the tool.

[0041] A working method of a digital display angle spirit level capable of being used by sticking to a wall as described above includes the following steps:

[0042] A. Preparation stage:

[0043] Deploy the auxiliary positioning component;

[0044] Extend the wall connection head of the connection mechanism;

[0045] B. Preliminary positioning:

[0046] Bring the wall connection head into contact with the wall to establish a preliminary connection;

[0047] Adjust the spirit level to a roughly horizontal position;

[0048] C. Fine-tuning operation:

[0049] Start the fine-tuning component to make the suction cup contact the wall;

[0050] Rotate the knob portion for fine angle adjustment;

[0051] D. Final fixation:

[0052] Press the spirit level against the wall surface to bond the waterproof glue to the wall surface. Beneficial effects of the technical solution: This method provides a set of systematic operation steps, from preparation to final fixation, ensuring the precise positioning and stable adhesion of the spirit level on the wall surface, greatly improving the use efficiency and measurement accuracy.

[0053] Preferably, the working method further includes the following steps:

[0054] E. Angle ruler operation:

[0055] In the state where the spirit level is attached to the wall, rotate the suction cup seat by turning the knob part;

[0056] The suction cup seat drives the sector disk to rotate, and then drives the angle ruler to change from the hidden state to the exposed state. Beneficial effects of the preferred technical solution: This step enables the angle ruler to be flexibly deployed in the state where the spirit level is attached to the wall, increasing the functional diversity of the tool in the fixed state and improving the use convenience.

[0057] Preferably, the preparation stage further includes:

[0058] Rotate the lower sliding block around the second sliding rod away from the spirit level;

[0059] Rotate the component cooperating with the second connection surface by a certain degree relative to the pivot hole;

[0060] Slide the lower sliding block along the lower track to the fitting rotation area in the middle section of the spirit level. Beneficial effects of the preferred technical solution: These preparation steps ensure that the auxiliary positioning component can be correctly deployed and positioned, laying a foundation for subsequent precise adjustment and improving the reliability of the overall operation.

[0061] Preferably, the fine-tuning operation further includes:

[0062] Press the knob part towards the wall surface to disengage the second positioning flange from the clamping layer;

[0063] Continue to press until the suction cup contacts the wall surface and deforms to generate an adsorption force;

[0064] Ensure that the first positioning flange enters the clamping layer, and at the same time, the gear teeth mesh with the meshing teeth;

[0065] The final fixation further includes:

[0066] Disengage the first positioning flange from the clamping layer;

[0067] Make the second positioning flange enter the clamping layer;

[0068] Separate the gear teeth from the meshing teeth to lock the final position of the spirit level. Beneficial effects of the preferred technical solution: These fine-tuning and fixing steps achieve fine adjustment and stable locking of the spirit level on the wall surface, ensuring high precision and reliability of the final measurement results, and also facilitating subsequent continuous use.

[0069] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0070] The digital display angle spirit level of the present invention brings significant improvements in many aspects through its innovative design. First of all, its digital display and precise fine-tuning mechanism greatly improve the measurement accuracy, eliminate reading errors, and ensure high-precision wall measurement. Its quick wall sticking function and integrated design greatly enhance the usability, saving a lot of time and effort. This tool can not only perform traditional horizontal and vertical measurements, but also accurately measure angles, significantly expanding the functional diversity and being applicable to various complex building and decoration scenarios. The systematic operation steps and the design that do not require frequent removal and re-pasting improve the operation efficiency, while improving the user experience and solving the problem of difficult observation when using traditional spirit levels on the wall. The multiple fixing mechanisms and locking design improve the measurement reliability and reduce human errors. In addition, the digital display and standardized operation steps promote the 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 sticking improves the safety of high-altitude operations.

[0071] Generally speaking, this innovative digital display angle spirit level not only solves many problems of traditional spirit levels when used on the wall, but also provides users with a more flexible, precise and reliable measuring tool, and is expected to be widely used in the construction and decoration industries, significantly improving work efficiency and quality standards. Brief Description of the Drawings

[0072] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0073] Figure 1 : Overall three-dimensional structure diagram of the digital display angle spirit level of the present invention;

[0074] Figure 2 : Overall schematic diagram of the digital display angle spirit level of the present invention when used on the wall;

[0075] Figure 3 : Partial enlarged schematic diagram of the digital display angle spirit level of the present invention when used on the wall, highlighting the auxiliary positioning and fine-tuning mechanism;

[0076] Figure 4 : Three-dimensional structure diagram of the back of the digital display angle level of the present invention, showing the hidden state of the angle level;

[0077] Figure 5 : Another three-dimensional structure diagram of the back of the digital display angle level of the present invention, with the body part reduced for easy observation of the internal structure;

[0078] Figure 6 : Figure 5 Partial enlarged view at B in, showing the structure of the auxiliary positioning component in detail;

[0079] Figure 7 : Partial three-dimensional view of the back of the level, showing the state where the auxiliary positioning component moves to the middle section of the body;

[0080] Figure 8 : Based on Figure 7 , showing the state where the main body starts to rotate around the pivot axis;

[0081] Figure 9 : Based on Figure 8 , showing the intermediate state where the main body further rotates around the pivot axis;

[0082] Figure 10 : Based on Figure 9 , showing the final state where the main body rotates completely in place;

[0083] Figure 11 : Schematic diagram of partial disassembly of the auxiliary positioning component when the angle level is in the open state, showing the relationship between components;

[0084] Figure 12 : Another angle schematic diagram of partial disassembly of the auxiliary positioning component when the angle level is in the open state, providing structural details from different perspectives;

[0085] Figure 13 : Figure 11 Partial enlarged view at C in, showing the key structure of the auxiliary positioning component in detail;

[0086] Figure 14 : Schematic diagram of partial disassembly of the rotation mechanism and the angle of the adjusting part, showing the internal structure and connection relationship;

[0087] Figure 15 : Figure 2 Partial enlarged view at A in, showing the working state of the fine-tuning component when the level is attached to the wall;

[0088] Figure 16 : Schematic diagram of the technical solution of Embodiment 2, showing the base and the operation hole;

[0089] Figure 17 : It is a schematic structural diagram of the technical solution of Embodiment 2, showing the base and the operation hole in another direction.

[0090] Reference numerals: spirit level 10, angle gauge 30, rotating mechanism 20, angle display screen 40, waterproof glue 50, auxiliary positioning and fine-tuning mechanism 60, auxiliary positioning component 61, fine-tuning component 62, upper track 11, lower track 12, upper sliding block 611, first sliding rod 612, first connection surface 01, groove 613, lower sliding block 614, second sliding rod 615, base 616, operation hole 617, second connection surface 02, pivot hole 03, avoidance groove 04, connection and mating surface 05, pivot shaft 06, main body 07, connection mechanism 09, mechanism seat 091, connection body 092, pressing part 093, wall connection head 094, arc-shaped waist hole 621, meshing teeth 622, clamping layer 623, adjusting part 624, knob part 625, gear teeth 626, first positioning flange 261, second positioning flange 271, suction cup 281, rotating arm 21, sector disk 22, suction cup seat 628, mating rotation area 08. Detailed implementation manners

[0091] The preferred embodiments of the present invention will be described in detail below in conjunction with all the drawings. It should be noted that the following description is only the preferred embodiments of the present invention and does not limit the present invention. Those skilled in the art should understand that various modifications and variations can be made to the present invention without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be subject to the appended claims.

[0092] Embodiment 1:

[0093] A digital display angle spirit level that can be used by attaching to a wall. For the convenience of description and understanding, referring to Figure 1 , the side with the digital display is defined as the front, the opposite side is defined as the back, the direction in which the numerical value is displayed positively upward is defined as the upper side, and the opposite direction is defined as the lower side.

[0094] It mainly includes the following parts: a spirit level 10, an angle gauge 30, a rotating mechanism 20 for rotating the angle gauge 30 around the spirit level 10, an angle display screen 40 for displaying the rotation angle of the angle gauge 30, a waterproof glue 50 provided on the spirit level 10 for pasting to the wall, and an auxiliary positioning and fine-tuning mechanism 60 provided on the spirit level 10 for adjusting the precise position of the spirit level 10 before the waterproof glue 50 pastes to the wall.

[0095] The spirit level 10 is usually long and strip-shaped, with its length much greater than the width of the cross-section. The cross-section is often designed as a rectangle, but it is not limited to this. Other suitable shapes can be adopted according to actual needs, such as an octagon or an ellipse, to meet the requirements of different usage scenarios. The bubble levels in the spirit level 10 usually have multiple directions such as horizontal, vertical, and 45 degrees. Users can select the appropriate bubble level for measurement according to their needs. On the back of the spirit level 10, near the upper and lower long sides, there is a track parallel to and of the same length as the side or customized according to the set length. For the convenience of description and distinction, the upper one is defined as the upper track 11, and the lower one 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 spirit level.

[0096] The length of the angle ruler 30 is less than that of the spirit level 10. One end of it is hinged to one end of the spirit level 10 through a 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, there is 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 spirit level 10 near one end. When the angle ruler 30 coincides with the center line in the long direction of the spirit level 10 and is viewed from the front, the angle ruler 30 is completely hidden behind the spirit level 10. At this time, a small part at both ends of the back of the spirit level 10 is not covered by the angle ruler 30, and the reserved space is used to arrange the auxiliary positioning and fine-tuning mechanism 60.

[0097] The components in the rotating mechanism 20 have damping characteristics to ensure the stability and accuracy of angle adjustment. This damping characteristic can be achieved through friction pads or damping oil, etc., making the angle adjustment flexible and stable. The angle ruler 30 is located on the back of the spirit level 10, and the two basic plate surfaces are in contact. This design can reduce the overall thickness and improve the convenience of use.

[0098] The angle display screen 40 is arranged corresponding to the rotating mechanism 20, and some of their components are connected (the connection is prior art and will not be elaborated). The display side is located on the front of the angle ruler 30. The angle display screen 40 can display the angle value accurate to 0.1 degree, and at the same time, it can also display other relevant information, such as battery power, measurement mode, etc.

[0099] The waterproof glue 50 is arranged on the back of both ends of the spirit level 10 or on the end caps 13 at both ends. It uses high-strength and reusable materials (such as silicone with a special formula), which not only ensures the bonding strength with the wall surface but also is convenient for cleaning and multiple uses. This design enables the spirit level to be firmly attached to the wall surface for long-term measurement or marking.

[0100] 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:

[0101] 1. Normal use status:

[0102] 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.

[0103] 2. Wall pasting status:

[0104] 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.

[0105] The specific structure of the auxiliary positioning component 61 includes the following key parts:

[0106] 1) Upper sliding block 611:

[0107] The sliding fit on the upper rail 11 ensures smooth movement.

[0108] 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.

[0109] 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.

[0110] 2) Downward sliding block 614:

[0111] Slidingly cooperate with the lower track 12 to achieve stable movement.

[0112] Its working stroke covers the middle section of the spirit level 10, providing a larger adjustment range.

[0113] It includes a second sliding rod 615 that slidingly cooperates with the lower track 12 and has a second connecting surface 02 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 Figure 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.

[0114] Special note: The design of the lower sliding block 614 has multiple functions, which are reflected in the following two key features:

[0115] ① Rotation function: The lower sliding block 614 can rotate around the second sliding rod 615 by a specific angle away from the spirit level. 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 component 61 to flexibly switch between different usage states.

[0116] For example, in the normal usage state, the lower sliding block 614 may be closely attached to the spirit level 10; while when it needs to be switched to the wall pasting state, the user can easily rotate the lower sliding block 614 to disengage it from its original position, creating space for subsequent operations.

[0117] ② Switching function: The specific angle design of the second connecting surface 02 enables the auxiliary positioning component 61 to switch between two application states. The specific operation is as follows:

[0118] In one application state (such as the normal usage state), the component that cooperates with the second connecting 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. Through the combination of these two steps of operations, the auxiliary positioning component 61 can be switched to another application state (such as the wall pasting state).

[0119] This multi-functional design greatly enhances the practicality of the spirit level. Users can quickly switch between the two usage modes according to different work requirements without replacing tools or making complex adjustments.

[0120] 3) The main body 07 of the plate structure:

[0121] One end has a connecting mating surface 05, and a pivot shaft 06 that is closely and rotatably mated with the pivot hole 03 is provided at its center. The other end is provided with a clamping portion that can be detachably clamped with the groove 613. This detachable design facilitates assembly and maintenance.

[0122] 4) Rotation - cooperation area 08:

[0123] It is arranged on the lower track 12 in the middle section of the spirit 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 retaining part 082. The design of the avoidance notch 081 ensures that it will not interfere with the rotation of the lower sliding block 614, making the adjustment process smoother; when the lower sliding block 614 rotates, the retaining part 082 will enter the avoidance groove 04, and this design prevents the lower sliding block 614 from detaching from the lower track 12, ensuring the stability and safety of the structure.

[0124] 5) Connection mechanism 09 arranged on the main body 07 for pre - establishing a connection with the wall:

[0125] Refer to Figure 3-13 , the connection mechanism 09 includes a mechanism base 091 and a connection body 092. The mechanism base 091 has an outer wall and an internal accommodation space, and its internal accommodation space is 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 base 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.

[0126] The wall connection head 094 adopts a diversified design and can be a suction cup, a micro - adsorption device or a specially designed adhesive surface to adapt to walls of different materials and surface conditions. This flexibility enables the spirit level 10 to be effectively used in various working environments.

[0127] In the normal use state of the spirit level 10, the mechanism base 091 is hidden in the space reserved on the back of the spirit level 10, without affecting the daily measurement operation. When it is necessary to switch to the wall - sticking use state, the operator flips and moves the main body 07 to make the mechanism base 091 rotate to Figure 3 the fully exposed position shown. This design realizes the rapid conversion of functions and improves work efficiency.

[0128] The usage steps are as follows:

[0129] a. Operate the pressing part 093 to make the connection body 092 slide in the mechanism base 091, and the wall connection head 094 extends accordingly.

[0130] b. Bring the wall connection head 094 into contact with the wall to establish a preliminary connection.

[0131] c. Utilize the rotational design of the connection body 092, with the wall connection head 094 as the support and positioning point, to adjust the angle of the spirit level 10. For example, the operator can hold the body of the spirit level 10 and adjust it to the horizontal position.

[0132] d. After the angle adjustment is completed, press the body of the level against the wall surface so that the waterproof glue 50 adheres to the wall surface to achieve the final fixation.

[0133] Combined with the aforementioned auxiliary positioning component 61 and fine-tuning component 62, the connecting mechanism 09 further enhances the functionality of the spirit level 10. The operator can first achieve a rough preliminary positioning through the connecting mechanism 09, then use the fine-tuning component 62 for fine adjustment, and finally achieve a firm adhesion through the waterproof glue 50. This multi-level positioning and adjustment mechanism ensures high-precision and reliable measurement.

[0134] The fine-tuning component 62 is integrally arranged in the space reserved near the rotation mechanism 20 in the spirit level 10. Refer to Figure 2 、 Figure 14-15 , and its specific structure includes the following key parts:

[0135] 1) Arc-shaped waist hole 621: It is arranged on the body of the spirit level 10 and is located next to the angle display screen 40. The center of the arc of this arc coincides with the center of the cross-section after the wall surface connector 094 in the auxiliary positioning component 61 is connected to the wall surface. The back surface of the spirit level 10 extends the side wall of the arc-shaped waist hole 621 to increase the structural strength and stability. The inner wall of the arc-shaped 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 buffering function.

[0136] 2) Adjusting part 624: It is inserted into the arc-shaped waist hole 621 and successively includes the following coaxial components from the front surface to the back surface of the spirit level 10:

[0137] Knob part 625: The external structure for the user to operate.

[0138] Gear teeth 626: They cooperate with the meshing teeth 622 in the arc-shaped waist hole 621.

[0139] First positioning flange 261: It is used to cooperate with the clamping layer 623.

[0140] Transition section 627: It connects each component.

[0141] Second positioning flange 271: It is used to cooperate with the clamping layer 623 to achieve initial positioning.

[0142] Suction cup seat 628: It is used to install the suction cup.

[0143] Suction cup 281: It is installed in the suction cup seat 628 and can rotate around its axis. The knob part 625 can control the rotation of the suction cup seat 628, but the rotation of the suction cup 281 is not restricted. The suction cup 281 is made of rubber or soft plastic and generates an adsorption force through deformation.

[0144] Working principle and usage method of the adjusting member 624:

[0145] 1. Non-working state: The adjusting member 624 is located at the arc center of the arc-shaped waist hole 621, and the second positioning flange 271 contacts the clamping layer 623 to achieve initial pre-positioning.

[0146] 2. Working state conversion: When the spirit level 10 needs to be pasted on the wall for use, the operation steps are as follows:

[0147] a. Complete the preliminary connection with the wall through the wall connection head 094 of the connection mechanism 09.

[0148] b. Press the knob part 625 towards the wall to make the second positioning flange 271 disengage from the clamping layer 623.

[0149] c. Continue to press until the suction cup 281 contacts the wall and deforms to generate an adsorption force.

[0150] d. At this time, the first positioning flange 261 enters the clamping layer 623, and at the same time, the gear teeth 626 mesh with the meshing teeth 622.

[0151] 3. Fine-tuning operation: Rotate the knob part 625 to the left or right, and the gear teeth 626 drive the meshing teeth 622 to move, so that the whole spirit level 10 rotates around the cross-section center of the wall connection head 094 for fine angle adjustment.

[0152] This design combines the advantages of the auxiliary positioning component 61 and the fine-tuning component 62 to achieve the rapid fixation and precise adjustment of the spirit level 10 on the wall. Users can first achieve rough pre-positioning through the connection mechanism 09, and then use the fine-tuning component 62 for fine adjustment to meet the needs of various precision measurements and markings. This innovative design significantly improves the practicality and accuracy of the spirit level in the fields of building construction, interior decoration, etc.

[0153] Refer to the appendix Figure 1-15 , the usage method of the spirit level 10 includes:

[0154] I. Conventional usage state

[0155] 1. Ensure that the angle scale 30 is completely hidden behind the spirit level 10.

[0156] 2. A part of the auxiliary positioning component 61 is clamped to the angle scale 30 to restrict its rotation.

[0157] 3. Use the spirit level bubble or the display screen showing the state of the spirit level bubble on the spirit level 10 for horizontal, vertical or 45-degree angle measurement.

[0158] 4. When angle measurement is required, use the angle scale 30 and the angle display screen 40.

[0159] II. Wall pasting state

[0160] a) Preparation stage

[0161] 1. Operation of the auxiliary positioning component 61: Rotate the lower sliding block 614 around the second sliding rod 615 away from the spirit level. The rotation angle should be sufficient to completely disengage the component that cooperates with the groove 613.

[0162] 2. Operation of the main body 07: Rotate the component that cooperates with the second connection surface 02 by 180 degrees relative to the pivot hole 03.

[0163] 3. Movement of the lower sliding block 614: Slide the lower sliding block 614 along the lower track 12 to the fitting rotation area 08 in the middle section of the spirit level 10. Make the lower sliding block 614 enter the avoidance notch 081, and at the same time, the retaining part 082 enters the avoidance groove 04.

[0164] 4. Exposure of the connecting mechanism 09: Flip and move the main body 07 to completely expose the mechanism seat 091 from the space left on the back of the spirit level 10.

[0165] 5. Preparation of the wall connection head 094: Operate the pressing part 093 to make the connecting body 092 slide within the mechanism seat 091. Ensure that the wall connection head 094 completely extends.

[0166] b) Preliminary pre-positioning

[0167] 1. Preliminary wall connection: Bring the wall connection head 094 into contact with the wall to establish a preliminary connection.

[0168] 2. Angle adjustment of the spirit level 10: Utilize the rotation design of the connecting body 092 with the wall connection head 094 as the support positioning point. Adjust the spirit level 10 to a roughly horizontal position. Make a rough positioning with reference to the bubble level and the angle display screen 40.

[0169] c) Fine-tuning operation

[0170] 1. Start of the fine-tuning component 62: Press the knob part 625 towards the wall. Make the second positioning flange 271 disengage from the clamping layer 623. Continue to press until the suction cup 281 contacts the wall and deforms to generate an adsorption force. Ensure that the first positioning flange 261 enters the clamping layer 623. At the same time, the gear teeth 626 mesh with the meshing teeth 622.

[0171] 2. Fine angle adjustment: Rotate the knob part 625 to the left or right. The entire spirit level 10 will be adjusted with the cross-section center of the wall connection head 094 as the rotation center.

[0172] d) Final fixation

[0173] Press the body of the spirit level 10 tightly against the wall.

[0174] 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.

[0175] 3. State switching

[0176] For regular use and wall pasting: follow the above steps.

[0177] 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.

[0178] 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 easy 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.

[0179] 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.

[0180] In some embodiments, protective covers are provided on the waterproof glue 50 and the wall connection head 094 to prevent dust.

[0181] 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 .

[0182] Embodiment 2:

[0183] In some application scenarios, there may not be enough space below the spirit level for the auxiliary positioning component 61 to flip down for pre-positioning. In response to this situation, we have designed the auxiliary positioning component 61 differently so that it can complete the pre-positioning operation without the need to flip down, thus enabling the pre-positioning function to be achieved while remaining on the spirit level. Refer to Figure 16-17 , the specific design is as follows:

[0184] 1. Integrated base design:

[0185] The auxiliary positioning component 61 adopts an integrated design, including a base 616. This base 616 integrates the original main body 07, upper sliding block 611, and lower sliding block 614 to form a compact overall structure. This design not only simplifies the component but also improves the overall stability and durability.

[0186] 2. Retention and optimization of the connection mechanism:

[0187] The basic structure of the connection mechanism 09 remains unchanged and is still installed on the panel surface of the base 616. However, in order to adapt to the new operation mode, it may be necessary to fine-tune it:

[0188] Adjust the length or stroke of the connecting body 092 to ensure that it can effectively extend and retract in the new operation mode.

[0189] 3. Operation hole design:

[0190] On the spirit level 10, an operation hole 617 is opened on the side of the base 616 for locking the angle ruler 30. This operation hole has the following characteristics:

[0191] a. The size and shape are optimized to be convenient for operation without affecting the structural strength of the spirit level.

[0192] b. After the base 616 slides to unlock the angle ruler 30, at least part of the operation hole 617 coincides with the wall connection head 094 of the connection mechanism 09.

[0193] c. The edge of the operation hole 617 may need to be processed, such as chamfering or rubber bushings, to improve the comfort and safety of use.

[0194] 4. Operation process:

[0195] a. The user first unlocks the angle ruler 30 by sliding the base 616.

[0196] b. After unlocking, the operation hole 617 is aligned with the wall connection head 094.

[0197] c. The user can directly press the wall connection head 094 through the operation hole 617 to achieve the initial connection with the wall.

[0198] d. After connection, the user can finely adjust the position and angle of the spirit level.

[0199] 5. Considerations for multifunctional design:

[0200] Consider adding a quick locking / unlocking mechanism to the base 616 to facilitate the user to quickly switch between normal use and wall-pasting modes.

[0201] Add visual or tactile indicators around the operation hole 617 to help the user operate accurately under different lighting conditions.

[0202] Although the present invention has been disclosed in connection with certain embodiments shown and described in detail, those skilled in the art who benefit from the disclosure herein will readily appreciate various modifications and improvements thereto. 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.

[0203] For all purposes, all documents cited herein are hereby incorporated by reference in their entirety.

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; A fine adjustment component (62) for finely adjusting the angle of the level (10); An upper track (11) and a lower track (12) parallel to the two long sides are respectively provided 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); 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 fixed 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); A base (616) which is an integrated structure; A connecting mechanism (09) is installed on the plate surface of the base (616), and the connecting mechanism (09) comprises: a mechanism seat (091) having an internal accommodation space; a connecting body (092) is arranged in the mechanism seat (091) and can slide and rotate relatively, one end of which is a pressing part (093) and the other end of which is a wall connection head (094); 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 pressing portion (093) of the connection mechanism (09) through the operation hole (617) to extend the wall connection head (094) to connect with the wall, thereby completing the pre-positioning operation without the need to flip it downward; The rotating mechanism (20) is provided with a rotating arm (21), and the rotating arm (21) is provided with a fan disc (22). When the angle ruler (30) is hidden at the back of the level ruler (10), the fan disc (22) and the suction cup seat (628) come into conflict with each other. By rotating the knob (625), the suction cup seat (628) can drive the fan disc (22) to rotate, so that the fan disc (22) rotates along with the rotation of the angle ruler (30); 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); An adjusting member (624) is inserted into the arc-shaped waist hole (621), and the adjusting member (624) comprises: a knob portion (625) arranged outside the arc-shaped waist hole (621); a gear tooth (626) connected to the knob portion (625) and meshing with the meshing tooth (622); a first positioning flange (261) arranged on one side of the gear tooth (626) and engaged with the clamping layer (623); a second positioning flange (271) arranged on the same side as the first positioning flange (261), both of which are located on the same side of the gear tooth (626), and the second positioning flange (271) is farther from the gear tooth (626) than the first positioning flange (261), and a certain distance is maintained between the two positioning flanges; and a suction cup (281) arranged on the second positioning flange (271) for adsorption connection with the wall.

2. The digital angle level ruler that can be attached to a wall according to claim 1, 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.

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