A measuring level with digital display function and its using method

Abstract

The present invention provides a measuring level with a digital display function and a method for using the same. The measuring level with a digital display function comprises: a shell, both sides of the shell are provided with rotation grooves, and the inside of the shell is provided with two groups of adjustment grooves. The measuring level with a digital display function provided by the present invention has the advantages that when the two groups of rotating rings are vertically distributed, it is convenient to synchronously detect the left and right levels and the front and back levels, and when the two groups of rotating rings are parallelly distributed, it is convenient to perform double detection of the levels in the same direction, avoid errors, and improve the quality of horizontal measurement. The display can be easily unfolded and folded through a rotatable flip cover, so as to facilitate normal use and quick folding when not in use, avoid the display being exposed to the outside and easily colliding with external objects and being damaged, improve the safety of the display, reduce the impact of the construction environment on the display, and extend the service life of the display.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic measuring equipment, and in particular to a measuring level with a digital display function and a use method thereof. Background Art

[0002] A digital level is a commonly used measuring tool for measuring small angles. It is used to measure the inclination angle relative to the horizontal position, the parallelism between two components, the straightness of machine tool guides and instrument guides, the flatness of the worktable, the flatness of the plate, etc. When the digital display function is applied to the level for construction measurement, it is necessary to use the level at the construction site.

[0003] Due to the complex environment of the construction site, the display device of the existing level with digital display function is directly exposed above. Regardless of whether construction and measurement are in progress, the display device is prone to collision and accidental touch with external construction equipment. When the screen of the display device is bumped, it is easy to directly cause damage to the device. The level has no protective effect on the display device when in use.

[0004] Therefore, it is necessary to provide a measuring level with a digital display function and a method of using the level to solve the above technical problems. Summary of the invention

[0005] The invention provides a measuring level with a digital display function, which solves the problem that a display device on the level is directly exposed to the outside and is prone to collision and accidental touch.

[0006] In order to solve the above technical problems, the measuring level with digital display function provided by the present invention comprises: a shell, both sides of which are provided with a rotating groove, the interior of the shell is provided with two groups of adjusting grooves, the two groups of adjusting grooves are respectively matched with the two groups of rotating grooves, and the top of the shell is provided with a storage groove; two groups of supporting shafts, the two groups of supporting shafts are respectively fixed to the top and bottom of the inner wall of the rotating groove, and the supporting shaft is provided with a telescopic groove; a rotating ring, the rotating ring is arranged between the two groups of supporting shafts, the inner wall of the rotating ring is fixedly connected with a level, the top and the top of the rotating ring are provided with connecting grooves, and the interior of the rotating ring is provided with a limiting groove; an adjusting shaft, one end of the adjusting shaft is rotatably connected to the surface of the shell, one end of the adjusting shaft is fixedly connected to an adjusting disk, the other end of the adjusting shaft passes through the shell and extends to the interior of the adjusting groove, the other end of the adjusting shaft is fixedly connected to a driving gear, the driving gear The surface of the wheel is meshed with a lifting gear rod, the bottom end of the lifting gear rod is fixedly connected with a linkage slider, the top of the linkage slider is fixedly connected with a positioning spring, and the bottom of the linkage slider is fixedly connected with a limited blocking block; a flip cover plate, the flip cover plate is rotatably connected to the inner wall of the storage slot through a hinge, the bottom of the flip cover plate is provided with a flip groove, the top of the flip cover plate is provided with a pulling groove, one side of the inner wall of the pulling groove is fixedly connected with a resistance rubber, the bottom of the flip cover plate is fixedly connected with two support plates, and one end of the flip cover plate is rotatably connected with a protective cover plate through a hinge; a display, the top ends of both sides of the display are rotatably connected to both sides of the inner wall of the flip groove through a connecting shaft, and the bottom ends of both sides of the display are fixedly connected with a limited sliding shaft; two groups of support blocks, the two groups of support blocks are respectively arranged on both sides of the inner wall of the storage slot, and the two groups of support blocks have limited sliding grooves on opposite sides, and one side of the two support blocks has a positioning groove.

[0007] Preferably, the leveler is arranged horizontally, and the inner surface of the connecting groove is rotatably connected to the surface of the supporting shaft.

[0008] Preferably, the interior of the limiting groove is communicated with the interior of the telescopic groove, and the limiting groove is a cross-shaped structure.

[0009] Preferably, the upper half of the lifting gear rod is a toothed plate, the surface of the toothed plate is meshed with the surface of the driving gear, and the lower half of the lifting gear rod is a smooth rod.

[0010] Preferably, the bottom end of the smooth rod passes through the shell and the supporting shaft in sequence and extends to the inside of the telescopic slot, the bottom end of the smooth rod is fixed to the top of the linkage slider, and the smooth rod is located at the axial center position of the positioning spring.

[0011] Preferably, the top end of the positioning spring is fixedly connected to the top of the inner wall of the telescopic slot, the limiting block is a cross-shaped structure, and the surface of the limiting block is engaged with the inner surface of the limiting slot.

[0012] Preferably, the surface of the display is matched with the inner surface of the flip groove, and the surface of the display is matched with the inner surface of the storage groove.

[0013] Preferably, the surfaces of the two support plates are matched with the surface of the protective cover plate, the surface of the protective cover plate is matched with the inner surface of the pulling groove, and the protective cover plate is located directly above the display.

[0014] Preferably, the interior of the positioning groove is communicated with the interior of the limiting sliding groove, the inner surface of the positioning groove is engaged with the surface of the limiting sliding shaft, and the inner surface of the limiting sliding groove is matched with the inner surface of the limiting sliding shaft.

[0015] A method for using a measuring level with a digital display function comprises the following steps:

[0016] S1 When the digital display function is required for horizontal measurement, the flip cover is rotated upward and lifted first. When the flip cover is rotated, the display is pulled upward and lifted synchronously. When the display is lifted, the limit slide shaft at the bottom slides inside the limit slide groove and gradually moves in the direction of the positioning groove. When the limit slide shaft moves to the numerical direction of the positioning groove, the limit slide shaft is pressed downward and inserted into the positioning groove, so as to facilitate the limit and fixation of the unfolded display;

[0017] S2 When the whole equipment is used at the construction site, the protective cover is taken out from the inside of the lifting groove and rotated to the top of the support plate. The protective cover is stably covered above the display under the support of the support plate, thereby protecting and ensuring the safety of the display and ensuring the stability and safety of the display during use;

[0018] S3 When the digital display function is not needed, the protective cover plate only needs to be flipped to the inside of the lifting groove, so that the protective cover plate is fixed with the abutment rubber, and the display is lifted upward, so that the two limit slide shafts are separated from the inside of the positioning groove and slide into the inside of the limit slide groove, and the display is pushed in the direction of the flip cover plate, and the flip cover plate is directly covered in the storage groove;

[0019] S4 When the digital display function is not needed for horizontal measurement, turn the adjustment dial, the adjustment dial drives the adjustment shaft to rotate synchronously, the adjustment shaft rotates and drives the driving gear to rotate synchronously, the driving gear rotates and drives the lifting gear rod to rotate upward, the lifting gear rod moves upward and drives the linkage slider and the limit block to move upward synchronously, so that the limit block is separated from the inside of the limit slot, and the rotating ring can be rotated for adjustment. After the adjusting rotating ring is rotated 90°, release the adjustment dial, the linkage slider moves downward under the elastic force of the positioning spring and pushes the limit block to be stuck in the inside of the limit slot, and the adjustment dial automatically resets to the initial state, so that the rotating ring is fixed in the state of rotating 90°, so as to facilitate horizontal measurement through the leveling device on the inside of the rotating ring.

[0020] Compared with the related art, the measuring level with digital display function provided by the present invention has the following beneficial effects:

[0021] The present invention provides a measuring level with a digital display function. Rotating rings and a level with the same adjustment structure are arranged on both sides of a shell, so as to facilitate the detection of the horizontal angle in the absence of power supply. The levelers on the two groups of rotating rings can be adjusted according to the use requirements. When the two groups of rotating rings are vertically distributed, it is convenient to synchronously detect the left and right levels and the front and back levels. When the two groups of rotating rings are parallelly distributed, it is convenient to perform double detection on the levels in the same direction, so as to avoid errors and improve the quality of horizontal measurement. The display can be conveniently unfolded and folded through a rotatable flip cover, so as to facilitate normal use and quick folding when not in use, avoid the display being exposed to the outside and easily colliding with and being damaged by external objects, improve the safety of the display, reduce the influence of the construction environment on the display, and extend the service life of the display. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a preferred embodiment of a measuring level with a digital display function provided by the present invention;

[0023] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown;

[0024] Figure 3 for Figure 2 The structural schematic diagram of the limiting groove part shown;

[0025] Figure 4 for Figure 1 a side view of the display portion shown;

[0026] Figure 5 for Figure 4 An enlarged schematic diagram of part B is shown;

[0027] Figure 6 for Figure 4 An enlarged schematic diagram of part C is shown.

[0028] Numbers in the figure: 1. shell, 11. rotating groove, 12. adjusting groove, 13. storing groove, 2. supporting shaft, 21. telescopic groove, 3. rotating ring, 31. leveler, 32. connecting groove, 33. limiting groove, 4. adjusting shaft, 41. adjusting disk, 42. driving gear, 43. lifting gear rod, 44. linkage slider, 45. positioning spring, 46. limiting block, 5. flip cover, 51. flip groove, 52. lifting groove, 521. resistance rubber, 53. support plate, 54. protective cover, 6. display, 61. limiting slide shaft, 7. support block, 71. limiting slide groove, 72. positioning groove. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0030] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of a measuring level with a digital display function provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown; Figure 3 for Figure 2 The structural schematic diagram of the limiting groove part shown; Figure 4 for Figure 1 a side view of the display portion shown; Figure 5 for Figure 4 An enlarged schematic diagram of part B is shown; Figure 6 for Figure 4A measuring level with a digital display function comprises: a housing 1, wherein both sides of the housing 1 are provided with a rotation groove 11, wherein the interior of the housing 1 is provided with two sets of adjustment grooves 12, wherein the two sets of adjustment grooves 12 are respectively adapted to the two sets of rotation grooves 11, and wherein the top of the housing 1 is provided with a storage groove 13; two sets of support shafts 2, wherein the two sets of support shafts 2 are respectively fixed to the top and bottom of the inner wall of the rotation groove 11, wherein the support shafts 2 are provided with a telescopic groove 21; and a rotation ring 3, wherein the rotation ring 3 is arranged between the two sets of support shafts 2. The inner wall of the rotating ring 3 is fixedly connected with a leveler 31, the top and the top of the rotating ring 3 are both provided with connecting grooves 32, and the interior of the rotating ring 3 is provided with a limiting groove 33; an adjusting shaft 4, one end of which is rotatably connected to the surface of the shell 1, and one end of which is fixedly connected with an adjusting disk 41, and the other end of which passes through the shell 1 and extends to the interior of the adjusting groove 12, and the other end of which is fixedly connected with a driving gear 42, and the surface of the driving gear 42 is meshed with a lifting plate 41. A gear rod 43, the bottom end of the lifting gear rod 43 is fixedly connected to a linkage slider 44, the top of the linkage slider 44 is fixedly connected to a positioning spring 45, and the bottom of the linkage slider 44 is fixedly connected to a limiting block 46; a flip cover plate 5, the flip cover plate 5 is rotatably connected to the inner wall of the storage slot 13 through a hinge, a flip groove 51 is opened at the bottom of the flip cover plate 5, a lifting groove 52 is opened at the top of the flip cover plate 5, one side of the inner wall of the lifting groove 52 is fixedly connected to a resisting rubber 52, and the bottom of the flip cover plate 5 is fixedly connected to It is connected with two support plates 53, one end of the flip cover plate 5 is rotatably connected to the protective cover plate 54 through a hinge; the display 6, the top ends of both sides of the display 6 are rotatably connected to the two sides of the inner wall of the flip groove 51 through connecting shafts, and the bottoms of both sides of the display 6 are fixedly connected to the limiting sliding shafts 61; two groups of support blocks 7, the two groups of support blocks 7 are respectively arranged on both sides of the inner wall of the storage groove 13, and the two groups of support blocks 7 have limited sliding grooves 71 on the opposite sides, and one side of the two support blocks 7 is provided with a positioning groove 72.

[0031] The display 6 includes a display screen and control buttons. An angle sensing module and a processing module adapted to the display 6 are arranged inside the housing 1, and a power supply module is also provided. The display screen is mainly used to display the information of the tilt direction and tilt angle detected by the angle sensing module. Electronic horizontal angle detection is relatively mature in the prior art.

[0032] The two sides of the housing 1 are provided with rotating rings 3 and levelers 31 of the same adjustment structure, so as to facilitate the detection of the horizontal angle without power supply. The levelers 31 on the two sets of rotating rings 3 can be adjusted according to the needs of use. When the two sets of rotating rings 3 are vertically distributed, it is convenient to synchronously detect the left and right levels and the front and back levels. When the two sets of rotating rings 3 are parallelly distributed, it is convenient to perform double detection of the levels in the same direction, avoid errors, and improve the quality of horizontal measurement.

[0033] The display 6 can be easily unfolded and folded by means of a rotatable flip cover 5, so that it is convenient for normal use and quick folding when not in use, avoiding the display 6 from being exposed to the outside and easily colliding with external objects and being damaged, thereby improving the safety of the display 6, reducing the impact of the construction environment on the display 6, and extending the service life of the display 6.

[0034] The leveler 31 is arranged horizontally, and the inner surface of the connecting groove 32 is rotatably connected to the surface of the supporting shaft 2 .

[0035] The level 31 is located on the horizontal section in the middle of the rotating ring 3, so that the rotation of the rotating ring 3 will not cause the angle of the level 31 to change, ensuring the stability of the use of the level 31 and the accuracy of the detection. The level 31 is initially parallel in the positive and negative directions, which is convenient for detecting the tilt in the positive and negative directions. When the rotating ring 3 rotates 90°, the rotating ring 3 drives the level 31 to rotate 90° synchronously, so that the state of the level 31 is parallel in the left and right directions, which is convenient for detecting the tilt in the left and right directions.

[0036] The interior of the limiting groove 33 is communicated with the interior of the telescopic groove 21 , and the limiting groove 33 is a cross-shaped structure.

[0037] The cross-shaped limiting groove 33 and the cross-shaped limiting block 46 match each other, so that each time the rotating ring 3 rotates 90°, the limiting block 46 can be stably inserted into the limiting groove 33 and maintain the stability of the rotating ring 3 after rotation adjustment.

[0038] The upper half of the lifting gear rod 43 is a toothed plate, the surface of which meshes with the surface of the driving gear 42 , and the lower half of the lifting gear rod 43 is a smooth rod.

[0039] The bottom end of the smooth rod passes through the housing 1 and the supporting shaft 2 in sequence and extends to the inside of the telescopic slot 21 , the bottom end of the smooth rod is fixed to the top of the linkage slider 44 , and the smooth rod is located at the axial center position of the positioning spring 45 .

[0040] The linkage slider 44 is a square slider, and the inner surface of the telescopic slot 21 is adapted to the square linkage slider 44, so that the linkage slider 44 can only slide up and down inside the telescopic slot 21, ensuring the stability of the linkage slider 44 and the lifting gear rod 43 sliding up and down. The surface of the smooth rod part on the lifting gear rod 43 can be freely slid up and down between the support shaft 2 and the shell 1 to ensure the stability of the up and down adjustment of the linkage slider 44.

[0041] The top end of the positioning spring 45 is fixedly connected to the top of the inner wall of the telescopic slot 21 . The limiting block 46 is a cross-shaped structure, and the surface of the limiting block 46 is engaged with the inner surface of the limiting slot 33 .

[0042] The surface of the display 6 is matched with the inner surface of the flip groove 51 , and the surface of the display 6 is matched with the inner surface of the storage groove 13 .

[0043] When the display 6 is unfolded, the display surface of the display 6 faces the front of the device. When the display 6 is folded, the display surface of the display 6 faces the bottom of the inner wall of the storage slot 13, thereby ensuring the stability of the display 6 when not in use, preventing accidental touches and bumps, and extending the service life of the display 6.

[0044] The surfaces of the two support plates 53 are matched with the surface of the protective cover plate 54 , the surface of the protective cover plate 54 is matched with the inner surface of the pulling groove 52 , and the protective cover plate 54 is located directly above the display 6 .

[0045] The interior of the positioning groove 72 is connected to the interior of the limiting sliding groove 71 , the inner surface of the positioning groove 72 is engaged with the surface of the limiting sliding shaft 61 , and the inner surface of the limiting sliding groove 71 is matched with the inner surface of the limiting sliding shaft 61 .

[0046] A method for using a measuring level with a digital display function comprises the following steps:

[0047] S1 When the display 6 with a digital display function needs to be used for horizontal measurement, the flip cover 5 is preferably rotated upward and lifted. When the flip cover 5 is rotated, the display 6 is pulled upward and lifted synchronously. When the display 6 is lifted, the limit slide shaft 61 at the bottom slides inside the limit slide groove 71 and gradually moves in the direction of the positioning groove 72. When the limit slide shaft 61 moves to the numerical direction of the positioning groove 72, the limit slide shaft 61 is pressed downward and inserted into the positioning groove 72, so as to facilitate the limit and fixation of the unfolded display 6;

[0048] S2 When the whole device is used at the construction site, the protective cover plate 54 is taken out from the inside of the lifting groove 52 and rotated to the top of the support plate 53. The protective cover plate 54 is stably shielded above the display 6 under the support of the support plate 53, thereby protecting and ensuring the safety of the display 6 and ensuring the stability and safety of the display 6 during use;

[0049] S3 When the display 6 with the digital display function is not needed, the protective cover 54 only needs to be flipped to the inside of the lifting groove 52, so that the protective cover 54 is fixed with the abutting rubber 521, and the display 6 is lifted upward, so that the two limiting slide shafts 61 are separated from the inside of the positioning groove 72 and slide into the inside of the limiting slide groove 71, and the display 6 is pushed in the direction of the flip cover 5, and the flip cover 5 is directly covered in the inside of the storage groove 13;

[0050] S4 When there is no need to use the digital display function for horizontal measurement, rotate the adjusting disk 41, the adjusting disk 41 drives the adjusting shaft 4 to rotate synchronously, and when the adjusting shaft 4 rotates, it simultaneously drives the driving gear 42 to rotate, and when the driving gear 42 rotates, it drives the lifting gear rod 43 to rotate upward, and when the lifting gear rod 43 moves upward, it simultaneously drives the linkage slider 44 and the limit block 46 to move upward synchronously, so that the limit block 46 disengages from the inside of the limit groove 33. At this time, the rotating ring 3 can be rotated for adjustment. After adjusting the rotating ring 3 to rotate 90°, release the adjusting disk 41, and the linkage slider 44 moves downward under the elastic force of the positioning spring 45 and pushes the limit block 46 to snap into the inside of the limit groove 33. The adjusting disk 41 automatically resets to the initial state, so that the rotating ring 3 is fixed in the state of rotating 90°, so as to facilitate horizontal measurement through the leveler 31 on the inside of the rotating ring 3.

[0051] The working principle of the measuring level with digital display function provided by the present invention is as follows:

[0052] When the display 6 with a digital display function needs to be used for horizontal measurement, the flip cover 5 is preferably rotated upward and lifted. When the flip cover 5 is rotated, the display 6 is pulled upward and lifted synchronously. When the display 6 is lifted, the limiting sliding shaft 61 at the bottom slides inside the limiting sliding groove 71 and gradually moves in the direction of the positioning groove 72. When the limiting sliding shaft 61 moves to the numerical direction of the positioning groove 72, the limiting sliding shaft 61 is pressed downward and inserted into the inside of the positioning groove 72, so as to facilitate the limiting and fixing of the unfolded display 6.

[0053] When the whole device is used at the construction site, the protective cover plate 54 is taken out from the inside of the lifting groove 52 and rotated to the top of the support plate 53. The protective cover plate 54 is stably shielded above the display 6 under the support of the support plate 53, thereby protecting and ensuring the safety of the display 6 and ensuring the stability and safety of the display 6 during use;

[0054] When the display 6 with the digital display function is not needed, it is only necessary to flip the protective cover 54 to the inside of the lifting groove 52 so that the protective cover 54 is fixed in contact with the abutment rubber 521, lift the display 6 upward so that the two limiting slide shafts 61 disengage from the inside of the positioning groove 72 and slide into the inside of the limiting slide groove 71, push the display 6 in the direction of the flip cover 5, and directly cover the inside of the storage groove 13 with the flip cover 5.

[0055] Compared with the related art, the measuring level with digital display function provided by the present invention has the following beneficial effects:

[0056] The two sides of the housing 1 are provided with rotating rings 3 and levelers 31 of the same adjustment structure, so as to facilitate the detection of the horizontal angle without power supply. The levelers 31 on the two sets of rotating rings 3 can be adjusted according to the needs of use. When the two sets of rotating rings 3 are vertically distributed, it is convenient to synchronously detect the left and right levels and the front and back levels. When the two sets of rotating rings 3 are parallelly distributed, it is convenient to perform double detection of the levels in the same direction, avoid errors, and improve the quality of horizontal measurement.

[0057] The display 6 can be easily unfolded and folded by means of a rotatable flip cover 5, so that it is convenient for normal use and quick folding when not in use, avoiding the display 6 from being exposed to the outside and easily colliding with external objects and being damaged, thereby improving the safety of the display 6, reducing the impact of the construction environment on the display 6, and extending the service life of the display 6.

[0058] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A measuring level with a digital display function, characterized in that: include: A shell, both sides of which are provided with rotation grooves, the interior of which is provided with two groups of adjustment grooves, the two groups of adjustment grooves are respectively matched with the two groups of rotation grooves, and the top of the shell is provided with a storage groove; Two groups of supporting shafts, the two groups of supporting shafts are respectively fixed to the top and bottom of the inner wall of the rotating groove, and the supporting shafts are provided with telescopic grooves; A rotating ring, the rotating ring is arranged between the two groups of the supporting rotating shafts, a leveler is fixedly connected to the inner wall of the rotating ring, a connecting groove is provided at the top and the bottom of the rotating ring, and a limiting groove is provided inside the rotating ring; An adjusting shaft, one end of which is rotatably connected to the surface of the shell, one end of which is fixedly connected to an adjusting disk, the other end of which passes through the shell and extends to the inside of the adjusting slot, the other end of which is fixedly connected to a driving gear, a lifting gear rod is meshed on the surface of the driving gear, a linkage slider is fixedly connected to the bottom end of the lifting gear rod, a positioning spring is fixedly connected to the top of the linkage slider, and a limiting block is fixedly connected to the bottom of the linkage slider; A flip cover, the flip cover is rotatably connected to the inner wall of the storage slot through a hinge, a flip slot is provided at the bottom of the flip cover, a lifting slot is provided at the top of the flip cover, a resisting rubber is fixedly connected to one side of the inner wall of the lifting slot, two support plates are fixedly connected to the bottom of the flip cover, and one end of the flip cover is rotatably connected to a protective cover through a hinge; A display, wherein the tops of both sides of the display are rotatably connected to the two sides of the inner wall of the flip groove through connecting shafts, and the bottoms of both sides of the display are fixedly connected to the limited sliding shafts; Two groups of support blocks, the two groups of support blocks are respectively arranged on both sides of the inner wall of the storage slot, the two groups of support blocks have limiting sliding grooves on opposite sides, and one side of the two support blocks has positioning grooves; The upper part of the lifting gear rod is a tooth plate, the surface of the tooth plate is meshed with the surface of the driving gear, and the lower part of the lifting gear rod is a smooth rod; The bottom end of the smooth rod sequentially penetrates the housing and the supporting shaft and extends to the inside of the telescopic slot, the bottom end of the smooth rod is fixed to the top of the linkage slider, and the smooth rod is located at the axial center of the positioning spring; The top of the positioning spring is fixedly connected to the top of the inner wall of the telescopic slot, the limiting block is a cross-shaped structure, and the surface of the limiting block is engaged with the inner surface of the limiting slot; The interior of the positioning groove is communicated with the interior of the limiting sliding groove, the inner surface of the positioning groove is engaged with the surface of the limiting sliding shaft, and the inner surface of the limiting sliding groove is matched with the inner surface of the limiting sliding shaft.

2. The measuring level with digital display function according to claim 1, characterized in that: The leveler is arranged horizontally, and the inner surface of the connecting groove is rotatably connected to the surface of the supporting shaft.

3. The measuring level with digital display function according to claim 1, characterized in that: The interior of the limiting groove is communicated with the interior of the telescopic groove, and the limiting groove is a cross-shaped structure.

4. The measuring level with digital display function according to claim 1, characterized in that: The surface of the display is matched with the inner surface of the flip groove, and the surface of the display is matched with the inner surface of the storage groove.

5. The measuring level with digital display function according to claim 1, characterized in that: The surfaces of the two support plates are matched with the surface of the protective cover plate, the surface of the protective cover plate is matched with the inner surface of the lifting groove, and the protective cover plate is located directly above the display.

6. A method for using a measuring level with a digital display function, using the measuring level with a digital display function as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: S1 When the digital display function is required for horizontal measurement, the flip cover is rotated upward and lifted first. When the flip cover is rotated, the display is pulled upward and lifted synchronously. When the display is lifted, the limit slide shaft at the bottom slides inside the limit slide groove and gradually moves in the direction of the positioning groove. When the limit slide shaft moves to the numerical direction of the positioning groove, the limit slide shaft is pressed downward and inserted into the positioning groove, so as to facilitate the limit and fixation of the unfolded display; S2 When the whole equipment is used at the construction site, the protective cover is taken out from the inside of the lifting groove and rotated to the top of the support plate. The protective cover is stably covered above the display under the support of the support plate, thereby protecting and ensuring the safety of the display and ensuring the stability and safety of the display during use; S3 When the digital display function is not needed, the protective cover plate only needs to be flipped to the inside of the lifting groove, so that the protective cover plate is fixed with the abutment rubber, and the display is lifted upward, so that the two limit slide shafts are separated from the inside of the positioning groove and slide into the inside of the limit slide groove, and the display is pushed in the direction of the flip cover plate, and the flip cover plate is directly covered in the storage groove; S4 When the digital display function is not needed for horizontal measurement, turn the adjustment dial, the adjustment dial drives the adjustment shaft to rotate synchronously, the adjustment shaft rotates and drives the driving gear to rotate synchronously, the driving gear rotates and drives the lifting gear rod to rotate upward, the lifting gear rod moves upward and drives the linkage slider and the limit block to move upward synchronously, so that the limit block is separated from the inside of the limit slot, and the rotating ring can be rotated for adjustment. After the adjusting rotating ring is rotated 90°, release the adjustment dial, the linkage slider moves downward under the elastic force of the positioning spring and pushes the limit block to be stuck in the inside of the limit slot, and the adjustment dial automatically resets to the initial state, so that the rotating ring is fixed in the state of rotating 90°, so as to facilitate horizontal measurement through the leveling device on the inside of the rotating ring.

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