A kind of inclination measuring device used for engineering survey

Abstract

The invention relates to the technical field of engineering measurement, and discloses an inclination measuring device for engineering measurement, comprising a digital level main body, a first bubble level being arranged on the digital level main body, two supporting mechanisms being symmetrically arranged on both sides of the digital level main body, when the lower end of the digital level main body is brought into contact with a measured object, the first bubble level measures the inclination of the measured object; a calibration mechanism is arranged at the lower end of the digital level main body, the calibration mechanism comprises a plurality of first slide grooves opened at the lower end of the digital level main body, the plurality of first slide grooves are linearly equidistantly distributed, and probes are slidably arranged in the plurality of first slide grooves; the inclination measuring device for engineering measurement can contact the measured object through a row of probes arranged on the level, thereby measuring whether the level and the measured object are parallel, thereby correcting the error inclination and improving the accuracy of the measurement result.

Description

Technical Field

[0001] The invention relates to the technical field of engineering measurement, in particular to an inclination measuring device used for engineering measurement. Background Art

[0002] In the field of engineering surveying, when measuring the level or inclination of objects such as buildings or geological environments, inclination measuring equipment is needed. Commonly used inclination measuring equipment includes compasses, bubble levels, laser levels and other products.

[0003] Among them, the bubble level is a common inclination measurement tool. Its working principle is to use bubbles and liquid levels to determine whether an object is horizontal. The bubble level usually consists of a round glass tube and a sealed curved container filled with an appropriate amount of liquid. When the container is placed on a stable ground, the liquid will automatically balance and the bubble will be in the center, indicating that the object is horizontal. If the object is tilted, the bubble will move to one side. By reading the position of the bubble, the inclination of the object can be determined. Some digital levels can directly read the bubble through the electronic equipment in the level and directly display the inclination of the object on the display.

[0004] When the surface of the object being measured has concave or convex areas due to scratches, rust, burrs and other defects, if the level instrument contacts the concave and convex areas, the level instrument and the surface of the object are no longer parallel, but there is an error inclination angle. However, the existing bubble level lacks the function of calibrating the error inclination angle, resulting in inaccurate measurement results.

[0005] Therefore, in order to solve the above technical problems existing in the prior art, an inclination measuring device for engineering measurement is proposed. Summary of the invention

[0006] The present invention provides an inclination measuring device for engineering measurement, which can contact the object to be measured through a row of probes arranged on the level, so as to measure whether the level and the object to be measured are parallel, thereby correcting the error inclination angle, improving the accuracy of the measurement result, and conveniently controlling the lifting and turning of the level to perform double-sided measurement. It solves the problem in the prior art mentioned in the above background technology that when the level contacts the concave and convex area on the surface of the object, there is an error inclination angle, and the existing bubble level lacks the function of calibrating the error inclination angle, resulting in inaccurate measurement results.

[0007] The present invention provides the following technical solution: an inclination measuring device for engineering measurement, comprising a digital level body, a first bubble level being arranged on the digital level body, two supporting mechanisms being symmetrically arranged on both sides of the digital level body, and when the lower end of the digital level body is brought into contact with a measured object, the first bubble level measures the inclination of the measured object;

[0008] A calibration mechanism is provided at the lower end of the digital level body, and the calibration mechanism includes a plurality of first slide grooves provided at the lower end of the digital level body, the plurality of first slide grooves are linearly and equidistantly distributed, probes are slidably provided in the plurality of first slide grooves, the plurality of probes are elastically connected to the inner walls of the plurality of first slide grooves through a plurality of first springs, and displacement sensors are provided in the plurality of first slide grooves;

[0009] When there are concave and convex areas on the measured object, there is an error inclination angle between the digital level body and the surface of the measured object. At this time, the error inclination angle is measured by measuring the displacement of several probes when they contact the surface of the measured object respectively.

[0010] As an optional solution of the inclination measuring device for engineering measurement described in the present invention, wherein: the calibration mechanism further includes a storage assembly, the storage assembly includes a winding rod rotatably arranged in the main body of the digital level, the main body of the digital level is also provided with a motor, and the output shaft of the motor is connected to the winding rod;

[0011] A plurality of connection ropes are wound around the winding rod, one end of each of the connection ropes is connected to the winding rod, and the other ends of each of the connection ropes are connected to each of the probes.

[0012] As an optional solution of the inclination measuring device for engineering measurement described in the present invention, the supporting mechanism includes a supporting foot, a sliding seat is slidably arranged on the supporting foot, and the sliding seat is connected to the digital level body through a connecting component.

[0013] As an optional solution of the inclination measuring device for engineering surveying described in the present invention, wherein: the connecting assembly comprises a connecting seat arranged on the sliding seat, an arc groove is provided in the connecting seat, a connecting rod is provided on the main body of the digital level, and the connecting rod is slidably connected in the arc groove;

[0014] When the lower end of the digital level body contacts the concave-convex area on the surface of the measured object, the digital level body rotates based on the two symmetrical arc grooves, so that the lower end of the digital level body forms an inclination angle with the surface of the measured object.

[0015] As an optional solution of the inclination measuring device for engineering measurement described in the present invention, the connecting assembly also includes two second springs, one end of the two second springs are connected to the connecting rod, and the other ends of the two second springs are respectively connected to the inner walls on both sides of the arc groove.

[0016] As an optional solution of the inclination measuring device for engineering measurement described in the present invention, wherein: the support mechanism further includes a first positioning assembly, the first positioning assembly includes a slider slidably arranged on the support foot, and the slider is connected to the slide seat;

[0017] The slide block is provided with a connecting block, and two elastic teeth are symmetrically provided on the connecting block. The support foot is symmetrically provided with two tooth-shaped slots, and the two elastic teeth are respectively adapted to the two tooth-shaped slots.

[0018] As an optional solution of the inclination measuring device for engineering measurement described in the present invention, a second sliding groove is opened on the connecting block, a clamping block is slidably arranged in the second sliding groove, and the clamping block is elastically connected to the connecting block through a third spring.

[0019] As an optional solution of the inclination measuring device for engineering measurement described in the present invention, wherein: the connecting seat is rotatably connected to the sliding seat, the supporting mechanism further comprises a rotating rod arranged on the connecting seat, and the rotating rod is rotatably connected to the supporting foot and the sliding block;

[0020] Another set of calibration mechanisms is arranged at the upper end of the digital level body. After the digital level body is rotated 180°, the upper end of the digital level body is brought into contact with the object to be measured so as to measure the inclination of the object to be measured.

[0021] As an optional solution of the inclination measuring device for engineering measurement described in the present invention, the support mechanism also includes a second positioning component, the second positioning component includes two slots symmetrically opened on the rotating rod, two third sliding grooves are symmetrically opened in the sliding block, and pins are slidably arranged in the two third sliding grooves. The two pins are elastically connected to the inner walls of the two third sliding grooves through two fourth springs, and the two pins are movably engaged in the two slots.

[0022] As an optional solution of the inclination measuring device for engineering measurement described in the present invention, knobs are rotatably provided on both sides of the digital level body, second bubble levels are provided on the two knobs, and a digital display screen is provided on the digital level body.

[0023] The present invention has the following beneficial effects:

[0024] 1. This inclination measuring device used for engineering measurement takes into account that if the surface of the object being measured has uneven areas due to scratches, rust, burrs and other defects, the contact between the level and the uneven area will cause errors in the measurement results. Therefore, a calibration mechanism is installed on the level. The calibration mechanism is composed of a row of equidistantly arranged probes as the main body. When the calibration function is used, a row of probes are controlled to pop up downward to contact the object being measured, and the displacement of each probe is measured.

[0025] If the displacement of each probe is 0, it means that the level and the surface of the object being measured are in parallel contact without any gap. If the displacement of each probe is not equal, it means that there is an error angle between the level and the object being measured. By calculating the displacement data of multiple probes, the value of the error angle can be obtained, so as to calibrate the measurement value of the level.

[0026] 2. The calibration function of the inclination measuring device used for engineering measurement can be selectively enabled. When this function is not used, several probes are stored in the level. In addition, calibration mechanisms are installed at both ends of the digital level body, so that both sets of measurement data can be calibrated when using the double-sided measurement method.

[0027] 3. When measuring, the inclination measuring device used for engineering measurement first uses two supporting feet to support the whole device for easy operation, and then controls the main body of the digital level to slide down to contact the object to be measured, and is provided with a corresponding positioning structure. When the main body of the digital level is turned over, a corresponding positioning structure is also provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 It is a schematic cross-sectional structural diagram of the present invention as a whole.

[0030] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0031] Figure 4 for Figure 2 A partial enlarged view of point B in the middle.

[0032] Figure 5 It is a first cross-sectional structural schematic diagram of the support mechanism in the present invention.

[0033] Figure 6 It is a second cross-sectional structural schematic diagram of the support mechanism in the present invention.

[0034] Figure 7 for Figure 6 A partial enlarged view of point C in the middle.

[0035] Figure 8 It is a schematic diagram of the exploded structure of the hinge mechanism in the present invention.

[0036] Fig. 9 It is a schematic diagram of the explosion structure of the support mechanism in the present invention.

[0037] Fig.10 It is a schematic diagram of the working principle of the present invention.

[0038] Fig.11 for Fig.10 A partial enlarged view of point D in the middle.

[0039] In the figure: 100, digital level body; 110, first bubble level; 120, knob; 130, second bubble level; 140, digital display screen; 200, support mechanism; 210, support foot; 220, slide seat; 230, connecting assembly; 231, connecting seat; 232, arc groove; 233, connecting rod; 234, second spring; 240, first positioning assembly; 241, slide block; 242, connecting block; 243, elastic tooth; 2 44. Toothed slot; 245. Second slide slot; 246. Block; 247. Third spring; 250. Rotating rod; 260. Second positioning assembly; 261. Slot; 262. Third slide slot; 263. Latch; 264. Fourth spring; 300. Calibration mechanism; 310. First slide slot; 320. Probe; 330. Displacement sensor; 340. First spring; 350. Storage assembly; 351. Winding rod; 352. Connecting rope; 353. Motor. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] For example, see Figure 1-Figure 11 , an inclination measuring device for engineering measurement, comprising a digital level main body 100, a first bubble level 110 is arranged on the digital level main body 100, two supporting mechanisms 200 are symmetrically arranged on both sides of the digital level main body 100, when the lower end of the digital level main body 100 is brought into contact with the object to be measured, the first bubble level 110 measures the inclination of the object to be measured;

[0042] A calibration mechanism 300 is provided at the lower end of the digital level main body 100. The calibration mechanism 300 includes a plurality of first slide grooves 310 provided at the lower end of the digital level main body 100. The plurality of first slide grooves 310 are linearly and equidistantly distributed. Probes 320 are slidably provided in the plurality of first slide grooves 310. The plurality of probes 320 are elastically connected to the inner walls of the plurality of first slide grooves 310 through a plurality of first springs 340, respectively. Displacement sensors 330 are provided in the plurality of first slide grooves 310.

[0043] When there are concave and convex areas on the measured object, there is an error inclination angle between the digital level main body 100 and the surface of the measured object. At this time, the error inclination angle is measured by measuring the displacement of a plurality of probes 320 when they contact the surface of the measured object respectively.

[0044] Knobs 120 are rotatably provided on both sides of the digital level body 100 , and second bubble levels 130 are provided on the two knobs 120 . A digital display screen 140 is provided on the digital level body 100 .

[0045] In this embodiment: the digital level body 100 can select various models of digital levels according to actual needs. On this basis, the first bubble level 110 located in the middle of the digital level body 100 is a sealed glass tube filled with liquid and a bubble.

[0046] When the lower end of the digital level body 100 contacts the object to be measured, the bubble moves, and the electronic instrument inside the digital level body 100 can read the position of the bubble, so that the inclination degree of the object to be measured can be directly displayed through the digital display screen 140 installed on the digital level body 100. In addition, two second bubble levels 130 installed on the left and right sides of the digital level body 100 are used to assist in measurement, and the angle can be adjusted through the knob 120.

[0047] The specific structure and working principle of the digital level main body 100 are conventional technical means and are not described in detail here.

[0048] according to Fig.10 and Fig.11 As shown, when the lower end of the rectangular digital level body 100 contacts the object to be measured, if there is a protrusion on the surface of the object to be measured and the digital level body 100 contacts the protrusion, the digital level body 100 and the surface of the object are not parallel, but there will be an inclination angle a. At this time, there is an error in the inclination angle of the object measured by the digital level body 100, and the error value is the degree of the inclination angle a.

[0049] At this time, the error can be calibrated by the calibration mechanism 300. A row of first sliding grooves 310 are arranged equidistantly along the left and right directions at the lower end of the digital level body 100. Fig.10 The line in the figure may represent the probe 320 slidably installed in the first slide groove 310. The plurality of probes 320 are controlled to pop out downwards and contact the surface of the object to be measured.

[0050] In this process, the displacement of the plurality of probes 320 can be measured by the displacement sensor 330, and the length of each probe 320 extending out of the lower end of the digital level main body 100 and the length remaining inside the digital level main body 100 can be calculated. Fig.11 As shown in the figure, the length of the second probe 320 from left to right remaining inside the digital level main body 100 is set to L1, and the length of the third probe 320 from left to right remaining inside the digital level main body 100 is set to L2. The distance between the two probes 320 is a known quantity L3. By comparing the difference between L2 and L1 and L3, the value of the inclination angle b can be calculated using trigonometric functions, and the inclination angle b is equal to the inclination angle a. Calibration is performed based on the inclination angle of the object to be measured read by the first bubble level 110 using the value of the inclination angle a, and the actual value of the inclination angle of the object to be measured can be obtained.

[0051] In addition, every two adjacent probes 320 can measure a value of the inclination angle a, and multiple values ​​can be averaged if they are within a small error range. Fig.10 When the first probe 320 from left to right contacts the protrusion, and thus the inclination angle a calculated by the first probe 320 and the second probe 320 has a large error with other values, the value can be discarded.

[0052] Embodiment 2: This embodiment is an improvement on Embodiment 1. For details, please refer to Figure 2-Figure 8 The calibration mechanism 300 further includes a storage assembly 350, the storage assembly 350 includes a winding rod 351 rotatably disposed in the digital level main body 100, and a motor 353 is further disposed on the digital level main body 100, and the output shaft of the motor 353 is connected to the winding rod 351;

[0053] A plurality of connection ropes 352 are wound around the winding rod 351 , one end of each of the connection ropes 352 is connected to the winding rod 351 , and the other ends of each of the connection ropes 352 are connected to a plurality of probes 320 .

[0054] In this embodiment, the calibration function of the calibration mechanism 300 can be selectively turned on and off. In normal state, the motor 353 controls the winding rod 351 to rotate and wind the connecting ropes 352 around the winding rod 351. At this time, the probes 320 are stretched upward and stored inside the digital level body 100. When the calibration function is enabled, the winding rod 351 can be rotated in the opposite direction to lower the connecting ropes 352, so that the probes 320 are ejected downward under the downward elastic force of the first springs 340 and contact the surface of the object to be measured.

[0055] Embodiment 3: This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figure 1-Figure 9 The support mechanism 200 includes a support foot 210, on which a slide seat 220 is slidably provided, and the slide seat 220 is connected to the digital level body 100 through a connecting assembly 230;

[0056] The connecting assembly 230 includes a connecting seat 231 disposed on the sliding seat 220, an arc groove 232 is formed in the connecting seat 231, and a connecting rod 233 is disposed on the digital level body 100, and the connecting rod 233 is slidably connected in the arc groove 232;

[0057] When the lower end of the digital level body 100 contacts the concave-convex area on the surface of the object to be measured, the digital level body 100 rotates based on the two symmetrical arc grooves 232, so that the lower end of the digital level body 100 forms an inclination angle with the surface of the object to be measured;

[0058] The connecting assembly 230 further includes two second springs 234 , one end of each of the two second springs 234 is connected to the connecting rod 233 , and the other ends of the two second springs 234 are respectively connected to the inner walls on both sides of the arc-shaped groove 232 .

[0059] In this embodiment: To facilitate the use of the digital level main body 100, two sets of support mechanisms 200 are added on the left and right sides of the digital level main body 100. The support legs 210 can be made of magnetic material and are used to be adsorbed on metal objects. The two support legs 210 support the entire device. When the two slide seats 220 move downward synchronously, the two connecting seats 231 and the digital level main body 100 are driven to move downward together.

[0060] When the digital level body 100 is in parallel contact with the surface of the object to be measured, the connecting rod 233 maintains the same direction as the digital level body 100 under the elastic support of the two second springs 234. When there is an error angle between the digital level body 100 and the object to be measured, the two connecting rods 233 slide in the two arc grooves 232 respectively so that the digital level body 100 can rotate to fit the error angle. Under normal conditions, the digital level body 100 is supported by two symmetrical second springs 234 to keep it relatively vertical with the two support feet 210.

[0061] Embodiment 4: This embodiment is an improvement on Embodiment 3. For details, please refer to Figure 1-Figure 9 The support mechanism 200 further includes a first positioning assembly 240, the first positioning assembly 240 includes a slider 241 slidably disposed on the support foot 210, and the slider 241 is connected to the slide seat 220;

[0062] The slider 241 is provided with a connecting block 242, and two elastic teeth 243 are symmetrically provided on the connecting block 242. The supporting foot 210 is symmetrically provided with two tooth-shaped slots 244, and the two elastic teeth 243 are respectively adapted to the two tooth-shaped slots 244;

[0063] A second sliding groove 245 is provided on the connecting block 242 . A clamping block 246 is slidably provided in the second sliding groove 245 . The clamping block 246 is elastically connected to the connecting block 242 via a third spring 247 .

[0064] In this embodiment, when the block 246 is located on the upper side of the second slide groove 245 , the block 246 clamps the two elastic teeth 243 , and the two elastic teeth 243 cannot be elastically deformed and are clamped in a certain grid of the tooth-shaped clamp groove 244 .

[0065] When in use, the two supporting mechanisms 200 are operated simultaneously. First, the block 246 is pressed downward relative to the slider 241, so that the block 246 moves from the upper side close to the elastic teeth 243 to the lower side, and the block 246 no longer abuts against the two elastic teeth 243. Then the block 246 and the slider 241 are pulled downward as a whole, and the two elastic teeth 243 can be elastically deformed and are not stuck by the tooth-shaped slots 244.

[0066] The slider 241 moves downward, driving the slider 220, the connecting seat 231, the connecting rod 233 and the digital level main body 100 to move downward, and the lower end of the digital level main body 100 contacts the object to be measured. Then, the clamping block 246 is released, and under the rebound effect of the third spring 247, the clamping block 246 returns to the upper side of the second slide groove 245 and clamps the two elastic clamping teeth 243, fixing the position of the slider 241 and the digital level main body 100.

[0067] Embodiment 5: This embodiment is an improvement made on the basis of Embodiment 3. For details, please refer to Figure 1-Figure 9 The connecting seat 231 is rotatably connected to the sliding seat 220, and the supporting mechanism 200 further includes a rotating rod 250 disposed on the connecting seat 231, and the rotating rod 250 is rotatably connected to the supporting foot 210 and the sliding block 241;

[0068] Another set of calibration mechanisms 300 is disposed at the upper end of the digital level main body 100. After the digital level main body 100 is rotated 180°, the upper end of the digital level main body 100 is brought into contact with the object to be measured so as to measure the inclination of the object to be measured.

[0069] The support mechanism 200 also includes a second positioning component 260, which includes two slots 261 symmetrically opened on the rotating rod 250, and two third sliding grooves 262 symmetrically opened in the slider 241. Pins 263 are slidably arranged in the two third sliding grooves 262. The two pins 263 are elastically connected to the inner walls of the two third sliding grooves 262 through two fourth springs 264, and the two pins 263 are movably engaged in the two slots 261.

[0070] In this embodiment: When the digital level body 100 is usually used to measure the inclination angle, a double-sided measurement method is used, where the lower end of the digital level body 100 is brought into contact with the object to be measured to measure an inclination angle, and then the upper end of the digital level body 100 is turned over to bring into contact with the object to be measured to measure an inclination angle. The two values ​​are averaged to improve the measurement accuracy.

[0071] In order to facilitate the double-sided measurement of the digital level main body 100, the connecting seat 231 is arranged to be rotatably mounted on the sliding seat 220. The portion of the latch 263 stuck in the slot 261 is hemispherical, which plays a role in fixing the rotating rod 250 to a certain extent, and when the rotating rod 250 is rotated with force, the two latches 263 will be pushed out of the two slots 261. Until the rotating rod 250 rotates 180°, the two latches 263 are stuck in the two slots 261 again, which plays a role in fixing the rotating rod 250 to a certain extent.

[0072] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0073] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An inclination measuring device for engineering surveying, comprising a digital level main body (100), characterized in that: A first bubble level (110) is arranged on the digital level body (100), and two support mechanisms (200) are symmetrically arranged on both sides of the digital level body (100). When the lower end of the digital level body (100) is brought into contact with the object to be measured, the first bubble level (110) measures the inclination angle of the object to be measured; A calibration mechanism (300) is provided at the lower end of the digital level main body (100), and the calibration mechanism (300) comprises a plurality of first slide grooves (310) provided at the lower end of the digital level main body (100), the plurality of first slide grooves (310) being linearly and equidistantly distributed, a plurality of first slide grooves (310) each having a probe (320) slidably arranged therein, the plurality of probes (320) being elastically connected to the inner walls of the plurality of first slide grooves (310) respectively through a plurality of first springs (340), and a plurality of first slide grooves (310) each having a displacement sensor (330) arranged therein; When there are concave and convex areas on the measured object, there is an error inclination angle between the digital level main body (100) and the surface of the measured object. At this time, the error inclination angle is measured by measuring the displacement of a plurality of probes (320) when they contact the surface of the measured object respectively. The calibration mechanism (300) further comprises a storage assembly (350), wherein the storage assembly (350) comprises a winding rod (351) rotatably arranged in the digital level body (100), and a motor (353) is further arranged on the digital level body (100), wherein an output shaft of the motor (353) is connected to the winding rod (351); A plurality of connecting ropes (352) are wound around the winding rod (351), one end of each of the connecting ropes (352) is connected to the winding rod (351), and the other ends of each of the connecting ropes (352) are connected to each of the probes (320); The support mechanism (200) comprises a support foot (210), a slide seat (220) is slidably arranged on the support foot (210), and the slide seat (220) is connected to the digital level main body (100) via a connecting assembly (230); The connecting assembly (230) comprises a connecting seat (231) arranged on the sliding seat (220), an arc-shaped groove (232) is provided in the connecting seat (231), a connecting rod (233) is provided on the digital level body (100), and the connecting rod (233) is slidably connected in the arc-shaped groove (232); When the lower end of the digital level body (100) contacts the concave-convex area on the surface of the object to be measured, the digital level body (100) rotates based on the two symmetrical arc grooves (232), so that the lower end of the digital level body (100) forms an inclination angle with the surface of the object to be measured; The connecting assembly (230) further comprises two second springs (234), one end of each of the two second springs (234) being connected to the connecting rod (233), and the other ends of the two second springs (234) being respectively connected to the inner walls on both sides of the arc-shaped groove (232).

2. The inclination measuring device for engineering surveying according to claim 1, characterized in that: The support mechanism (200) further comprises a first positioning assembly (240), wherein the first positioning assembly (240) comprises a sliding block (241) slidably disposed on the support foot (210), and the sliding block (241) is connected to the sliding seat (220); The slider (241) is provided with a connecting block (242), the connecting block (242) is symmetrically provided with two elastic clamping teeth (243), the supporting foot (210) is symmetrically provided with two tooth-shaped clamping grooves (244), and the two elastic clamping teeth (243) are respectively adapted to the two tooth-shaped clamping grooves (244).

3. The inclination measuring device for engineering surveying according to claim 2, characterized in that: The connecting block (242) is provided with a second sliding groove (245), a clamping block (246) is slidably arranged in the second sliding groove (245), and the clamping block (246) is elastically connected to the connecting block (242) via a third spring (247).

4. The inclination measuring device for engineering surveying according to claim 2, characterized in that: The connecting seat (231) is rotatably connected to the sliding seat (220), and the supporting mechanism (200) further comprises a rotating rod (250) arranged on the connecting seat (231), and the rotating rod (250) is rotatably connected to the supporting foot (210) and the sliding block (241); Another set of calibration mechanisms (300) is arranged at the upper end of the digital level main body (100), and the inclination angle of the measured object is measured by rotating the digital level main body (100) by 180 degrees and then bringing the upper end of the digital level main body (100) into contact with the measured object.

5. The inclination measuring device for engineering surveying according to claim 4, characterized in that: The support mechanism (200) further comprises a second positioning assembly (260), the second positioning assembly (260) comprising two slots (261) symmetrically arranged on the rotating rod (250), two third slide grooves (262) symmetrically arranged in the slider (241), latches (263) slidably arranged in the two third slide grooves (262), the two latches (263) being elastically connected to the inner walls of the two third slide grooves (262) respectively through two fourth springs (264), and the two latches (263) being movably engaged in the two slots (261) respectively.

6. The inclination measuring device for engineering surveying according to claim 1, characterized in that: Knobs (120) are rotatably arranged on both sides of the digital level body (100), and second bubble levels (130) are arranged on the two knobs (120). A digital display screen (140) is arranged on the digital level body (100).

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