Portable high-precision gradienter

Abstract

The utility model relates to the technical field of gradienters, in particular to a portable high-precision gradienter which is characterized in that the lengths of a first bridge plate and a second bridge plate are adjustable, the first bridge plate and the second bridge plate are respectively provided with a single-shaft gradienter, and the lower ends of the first bridge plate and the second bridge plate are provided with rolling balls which are rotatably arranged and are flush with the lower end surface of a base; the single-axis gradienter has the advantages that by arranging the pair of bridge plates capable of rotatably adjusting the angle, adaptive combination of the single-axis gradienter and the bridge plates is achieved, when the bridge plates are adjusted to be perpendicular, the combination of the single-axis gradienter is installed on the two bridge plates, and the angle display assembly is used for displaying the included angle between the first bridge plate and the second bridge plate. The function of the device is equivalent to that of a double-shaft gradienter, the use range is greatly enlarged, the device is flexibly applied to different industrial scenes, meanwhile, carrying and detection are convenient, and the measurement efficiency is obviously improved compared with that of an existing double-shaft gradienter.

Description

Technical Field

[0001] The utility model relates to the technical field of levels, in particular to a portable high-precision level. Background Art

[0002] In the prior art, levels are divided into single-axis levels and dual-axis levels. Single-axis levels can only detect the levelness of a single position, while dual-axis levels can detect the levelness of two directions. However, existing single-axis levels are small and easy to carry, while dual-axis levels are large and inconvenient to carry, and are even twice the size of single-axis levels.

[0003] When using a level, a bridge plate is usually placed at the lower end to fix the position of the level and keep it stable with the detection surface. However, the existing bridge plate has a simple structure, a small application range, and a single function, and cannot be adapted and adjusted with a single-axis level. Utility Model Content

[0004] The purpose of the present invention is to provide a portable high-precision level to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A portable high-precision level includes a base, one side of which is provided with a first bridge plate and a second bridge plate that are rotatably mounted, the lengths of the first bridge plate and the second bridge plate being adjustable, and single-axis levels being mounted on both the first bridge plate and the second bridge plate, the lower ends of the first bridge plate and the second bridge plate being provided with rolling balls that are rotatably mounted and flush with the lower end surface of the base, and the base being provided with an angle display component that displays the angle between the first bridge plate and the second bridge plate.

[0007] Preferably, a rotating shaft is provided on the base, and the first bridge plate and the second bridge plate are both composed of a mounting arm and a telescopic arm, and a collar rotatably sleeved on the rotating shaft is provided at the end of the mounting arm.

[0008] Preferably, a stud is provided on the base, and a double-headed lifting rod is connected between the stud and the rotating shaft. One end of the double-headed lifting rod is located on the rotating shaft and is pressed onto the ring. A first spring is provided below the end of the double-headed lifting rod is located on the stud, and an adjusting nut is provided at the upper end which is threadedly connected to the stud and pressed onto the double-headed lifting rod.

[0009] Preferably, one end of the telescopic arm is provided with an insertion rod slidably plugged into the mounting arm, and the upper end surfaces of the mounting arm and the telescopic arm are vertically provided with blocks, and the single-axis level is clamped between the blocks.

[0010] Preferably, a through long slot is provided on one side of the mounting arm, and the through long slot is connected to the insertion inner cavity of the insertion rod on the mounting arm. A pair of second springs extending along the through long slot are provided on the outside of the mounting arm, one end of the second spring is fixed on the mounting arm, and a pin is provided on the other end of the second spring. A socket is provided on the end of the insertion rod, and the pin is inserted into the socket.

[0011] Preferably, the angle display assembly includes a dial and a marker rod, the dial is installed at the end of the rotating shaft, a pair of symmetrically distributed arc grooves are provided on the dial, the outer diameter of the ring on the second bridge plate is smaller than the inner diameter of the arc groove, and the rings on the first bridge plate and the second bridge plate are both provided with marker rods, and the pair of marker rods are respectively inserted into the symmetrically distributed arc grooves.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model realizes the adaptive combination of the single-axis level and the bridge plate by providing a pair of bridge plates with rotatable adjustable angles. When adjusted to verticality, the combination of single-axis levels is installed on the two bridge plates respectively. Its function is equivalent to that of a dual-axis level, which greatly increases the scope of use and can be flexibly used in different industrial scenarios. At the same time, it is easy to carry and detect, and its measurement efficiency is significantly improved compared with the existing dual-axis level. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the bridge plate of the utility model installed on the base;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the single-axis level of the present invention;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the base of the utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the mounting arm of the present utility model;

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the telescopic arm of the present utility model.

[0019] In the figure: 1. Base; 2. Rotating shaft; 3. First bridge plate; 4. Second bridge plate; 5. Double-headed lifting rod; 6. Stud; 7. First spring; 8. Dial; 9. Arc groove; 10. Single-axis level; 11. Adjusting nut; 12. Mounting arm; 13. Telescopic arm; 14. Stop block; 15. Through-long slot; 16. Insert rod; 17. Pin; 18. Second spring; 19. Ring; 20. Mark rod; 21. Socket; 22. Ball. DETAILED DESCRIPTION

[0020] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 5 , the utility model provides a technical solution:

[0022] A portable high-precision level includes a base 1, one side of which is provided with a first bridge plate 3 and a second bridge plate 4 that are rotatably mounted. A rotating shaft 2 is provided on the base 1. The first bridge plate 3 and the second bridge plate 4 are both composed of a mounting arm 12 and a telescopic arm 13. The end of the mounting arm 12 is provided with a ring 19 that is rotatably sleeved on the rotating shaft 2.

[0023] By providing the collar 19 , the first bridge plate 3 and the second bridge plate 4 can be rotatably mounted, thereby adjusting the relative angle between the first bridge plate 3 and the second bridge plate 4 .

[0024] The lengths of the first bridge plate 3 and the second bridge plate 4 are adjustable. One end of the telescopic arm 13 is provided with an insertion rod 16 that is slidably inserted into the mounting arm 12. A through long slot 15 is provided on one side of the mounting arm 12. The through long slot 15 is connected to the insertion inner cavity of the insertion rod 16 on the mounting arm 12. A pair of second springs 18 extending along the through long slot 15 are provided on the outside of the mounting arm 12. One end of the second spring 18 is fixed to the mounting arm 12, and the other end of the second spring 18 is provided with a pin 17. The end of the insertion rod 16 is provided with a socket 21, and the pin 17 is inserted into the socket 21.

[0025] By plugging in the plug rod 16, the telescopic plug-in between the mounting arm 12 and the telescopic arm 13 is realized, thereby realizing the length adjustment. By plugging in the pin 17 and limiting the long slot 15, the limited installation between the mounting arm 12 and the telescopic arm 13 is realized, and the elastic force of the second spring 18 is cooperated to realize the limitation of the length adjustment.

[0026] Single-axis levels 10 are installed on both the first bridge plate 3 and the second bridge plate 4 . Stoppers 14 are vertically provided on the upper end surfaces of the mounting arm 12 and the telescopic arm 13 , and the single-axis levels 10 are clamped between the stoppers 14 .

[0027] By pulling the telescopic arm 13, the second spring 18 is stretched. At this time, the uniaxial level 10 is placed on the upper end of the mounting arm 12, and one end of the uniaxial level 10 is against the stop block 14 of the mounting arm 12. Then let go. Under the reset force of the second spring 18, the stop block 14 on the telescopic arm 13 is pressed against the other end of the uniaxial level 10, thereby achieving the purpose of fixing and clamping the uniaxial level 10.

[0028] An angle display assembly for displaying the angle between the first bridge plate 3 and the second bridge plate 4 is provided on the base 1. The angle display assembly includes a dial 8 and a marker 20. The dial 8 is mounted on the end of the rotating shaft 2. The dial 8 is provided with a pair of symmetrically distributed arc grooves 9. The outer diameter of the collar 19 on the second bridge plate 4 is smaller than the inner diameter of the arc groove 9. The collars 19 on the first bridge plate 3 and the second bridge plate 4 are both provided with markers 20. The pair of markers 20 are respectively inserted into the symmetrically distributed arc grooves 9.

[0029] By setting a reference rod 20 extending into the arc groove 9, the upper end of the reference rod 20 corresponds to the circumferential scale on the dial 8, so that the angle between the first bridge plate 3 and the second bridge plate 4 can be obtained by simply calculating the scales corresponding to the two reference rods 20.

[0030] A stud 6 is provided on the base 1, and a double-headed lifting rod 5 is connected between the stud 6 and the rotating shaft 2. One end of the double-headed lifting rod 5 on the rotating shaft 2 is pressed onto the collar 19, and a first spring 7 is provided below the end of the double-headed lifting rod 5 on the stud 6. An adjusting nut 11 is provided at the upper end and is threadedly connected to the stud 6 and pressed onto the double-headed lifting rod 5. The lower ends of the first bridge plate 3 and the second bridge plate 4 are provided with a rolling ball 22 which is rotatably mounted and flush with the lower end surface of the base 1.

[0031] By setting the adjusting nut 11, the height of the double-headed lifting rod 5 is controlled, thereby achieving the purpose of controlling the fixed rotation angle between the first bridge plate 3 and the second bridge plate 4. The ball 22 is used to achieve point contact with the detection surface during rotation, reduce friction, and ensure the smoothness of angle adjustment.

[0032] Working principle: First, install the first bridge plate 3 and the second bridge plate 4 on the base 1, and then adjust the angle according to needs or usage scenarios, such as: adjust the first bridge plate 3 and the second bridge plate 4 to a relatively vertical state. At this time, the horizontality in the vertical direction can be measured. Its function is equivalent to the existing dual-axis level. During the adjustment process, the benchmark 20 produces relative rotation in the arc groove 9, and the scale corresponding to the benchmark 20 is used for calculation to obtain the angle data between the first bridge plate 3 and the second bridge plate 4. After the adjustment is completed, the nut 11 is screwed on the stud 6 to achieve the purpose of squeezing the double-headed lifting rod 5, thereby realizing the relative pressing and fixation of the rings 19 on the first bridge plate 3 and the second bridge plate 4.

[0033] Then pull out the telescopic arm 13 so that the second spring 18 is stretched. At this time, the uniaxial level 10 is placed on the upper end of the mounting arm 12, and one end of the uniaxial level 10 is against the stopper 14 of the mounting arm 12. Then let go. Under the reset force of the second spring 18, the stopper 14 on the telescopic arm 13 is pressed against the other end of the uniaxial level 10, thereby achieving the purpose of fixing and clamping the uniaxial level 10, and then the uniaxial level 10 is used to measure the horizontality.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable high-precision level, comprising a base (1), characterized in that: A first bridge plate (3) and a second bridge plate (4) are rotatably mounted on one side of the base (1); the lengths of the first bridge plate (3) and the second bridge plate (4) are adjustable, and a single-axis level (10) is mounted on each of the first bridge plate (3) and the second bridge plate (4); a rolling ball (22) is rotatably mounted and flush with the lower end surface of the base (1) at the lower ends of the first bridge plate (3) and the second bridge plate (4); and an angle display component is provided on the base (1) for displaying the angle between the first bridge plate (3) and the second bridge plate (4).

2. The portable high-precision level according to claim 1, characterized in that: A rotating shaft (2) is provided on the base (1); the first bridge plate (3) and the second bridge plate (4) are both composed of a mounting arm (12) and a telescopic arm (13); and a collar (19) is provided at the end of the mounting arm (12) and is rotatably sleeved on the rotating shaft (2).

3. The portable high-precision level according to claim 2, characterized in that: The base (1) is provided with a stud (6), and a double-headed lifting rod (5) is sleeved between the stud (6) and the rotating shaft (2). One end of the double-headed lifting rod (5) located on the rotating shaft (2) is pressed onto the collar (19), and a first spring (7) is provided below one end of the double-headed lifting rod (5) located on the stud (6). The upper end is provided with an adjusting nut (11) threadedly connected to the stud (6) and pressed onto the double-headed lifting rod (5).

4. The portable high-precision level according to claim 2, characterized in that: One end of the telescopic arm (13) is provided with an insertion rod (16) which is slidably plugged into the mounting arm (12); the upper end surfaces of the mounting arm (12) and the telescopic arm (13) are both vertically provided with stoppers (14); and the single-axis level (10) is clamped between the stoppers (14).

5. The portable high-precision level according to claim 4, characterized in that: A through-long slot (15) is provided on one side of the mounting arm (12), and the through-long slot (15) is connected to the insertion cavity of the insertion rod (16) on the mounting arm (12). A pair of second springs (18) extending along the through-long slot (15) are provided on the outside of the mounting arm (12), one end of the second spring (18) is fixed on the mounting arm (12), and a latch (17) is provided on the other end of the second spring (18). A socket (21) is provided on the end of the insertion rod (16), and the latch (17) is plugged into the socket (21).

6. The portable high-precision level according to claim 5, characterized in that: The angle display assembly comprises a scale plate (8) and a marker rod (20), wherein the scale plate (8) is mounted on the end of the rotating shaft (2), and a pair of symmetrically distributed arc grooves (9) are provided on the scale plate (8), the outer diameter of the collar (19) on the second bridge plate (4) is smaller than the inner diameter of the arc groove (9), and the collar (19) on the first bridge plate (3) and the second bridge plate (4) are both provided with a marker rod (20), and the pair of marker rods (20) are respectively inserted into the symmetrically distributed arc grooves (9).

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