Automatic level for land surveying

Abstract

The present invention provides an automatic level for land surveying and mapping, which relates to the technical field of horizontal surveying, and comprises an angle indicating component, a connecting mechanism, an automatic leveling component and an auxiliary stabilizing mechanism. An irradiation port is provided on the side of the level body, a connecting mechanism is screwed on the top of the inner part of the level body, an automatic leveling component is plugged on the bottom of the connecting mechanism, a horizontal pointing rod is integrally formed on the side of the automatic leveling component, an insertion rod is connected to the bottom of the end of the horizontal pointing rod, a laser is screwed on the end of the insertion rod, and an auxiliary stabilizing mechanism is installed at the bottom of the automatic leveling component, which can automatically increase the stability of the bottom of the leveling component after placement is completed to avoid continuous shaking, and the laser part also provides a sealing effect, further improving the stability and sealing of the laser part, and can provide a more accurate and reliable tilt angle indication function.

Description

Technical Field

[0001] The invention relates to the technical field of level surveying, in particular to an automatic level for land surveying and mapping. Background Art

[0002] The automatic level for land surveying is a level that uses a compensator to automatically obtain the level scale reading when the line of sight is horizontal. It can automatically level the compensator within a certain vertical axis inclination range. When the instrument is slightly tilted, the compensator moves relative to the telescope tube under the action of gravity, so that the correct reading on the scale when the line of sight is horizontal still falls on the horizontal crosshairs after passing through the compensator.

[0003] The laser automatic level used in land surveying in the prior art achieves horizontal pointing through an internal swing structure, but this structure will cause continuous slight shaking after a collision, especially after leveling and placement, the internal laser will continue to swing, resulting in insufficient stability. On the other hand, after leveling, the conventional automatic level will realize the angle data between the current placement plane and the horizontal plane by adjusting the rotation angle of the internal swing mechanism. However, due to the small size of the inner swing core mechanism, this solution has poor accuracy, large errors and insufficient reliability. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an automatic level for land surveying and mapping, so as to solve the problems raised in the above-mentioned background technology. The present invention installs an auxiliary stabilizing mechanism at the bottom of the automatic leveling component, which can automatically increase the stability of the bottom of the leveling component after placement to avoid continuous shaking, and the laser part also provides a sealing effect, further improving the stability and sealing of the laser part, and can provide a more accurate and reliable tilt angle indication function.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: an automatic level for land surveying and mapping, including a level body, the level body including an angle indicating component, a connecting mechanism, an automatic leveling component and an auxiliary stabilization mechanism, an irradiation port is opened on the side of the level body, a connecting mechanism is screwed on the top of the inner top of the level body, an automatic leveling component is plugged into the bottom of the connecting mechanism, a horizontal pointing rod is integrally formed on the side of the automatic leveling component, an insertion rod is connected to the bottom of the end of the horizontal pointing rod, a laser is screwed on the end of the insertion rod, the end of the laser is inserted into the interior of the irradiation port, a vertical pointing rod is integrally formed on the bottom of the automatic leveling component, an outer positioning plate is welded to the end of the vertical pointing rod, an angle indicating component is screwed on the side of the level body, an indicating rod is integrally formed on the side of the automatic leveling component, and the indicating rod is embedded in the interior of the angle indicating component.

[0006] Furthermore, the connecting mechanism includes a longitudinal leveling sleeve and a transverse leveling sleeve, and the longitudinal leveling sleeve and the transverse leveling sleeve are integrally formed, both ends of the transverse leveling sleeve are provided with rotation grooves, and both ends of the longitudinal leveling sleeve are inserted with lower hanging plates.

[0007] Furthermore, a top plate is welded to the top of the lower hanging plate, and the top plate is fixed to the top of the inner wall of the level body by screws, and the longitudinal leveling sleeve and the transverse leveling sleeve are in a vertical state.

[0008] Furthermore, the automatic leveling assembly includes a rotating plate, a horizontal pointing rod and a vertical pointing rod. The inner side of the rotating plate is integrally formed with an insert block, the outer side of the rotating plate is welded with a horizontal pointing rod and a vertical pointing rod, a connecting plate is integrally formed in the middle of the end of the horizontal pointing rod, and a weight-increasing column is integrally formed at the bottom end of the vertical pointing rod.

[0009] Furthermore, there are two rotating plates, and the rotating plates are embedded in the rotating groove through the inner plug-in block. One end of the indicator rod is fixed to the side of the vertical pointing rod. The surface of the angle indicating assembly is embedded with an indicator window, and the surface of the indicator rod is sleeved with a counterweight.

[0010] Furthermore, scale lines are printed on the outer side of the indication window, the indication window is an overall semicircular structure, the end of the indication rod is against the inner side of the indication window, and the central axis of the indication window coincides with the central axis of the longitudinal leveling sleeve.

[0011] Furthermore, an inner convex ring is embedded on the inner wall of the irradiation port, an arc-shaped clamping plate is integrally formed on the inner side of the inner convex ring, a sliding sleeve is sleeved on the surface of the insertion rod, a sliding ball is integrally formed on the surface of the sliding sleeve, and the surface of the sliding ball rests on the inner wall of the arc-shaped clamping plate.

[0012] Furthermore, a convex column is integrally formed at the rear end of the insertion rod, the top of the convex column is fixed under the connecting plate, the inner wall diameter of the arc-shaped clamping plate is the same as the diameter of the sliding ball, and the sliding sleeve moves linearly along the surface of the insertion rod.

[0013] Furthermore, the auxiliary stabilization mechanism includes a positioning seat and a positioning groove, the end of the weight-increasing column is integrally formed with an outer positioning plate, a magnetic column is inserted in the middle of the outer positioning plate, a spring rod is inserted at the top of the magnetic column, and an anti-slip pad is attached to the bottom of the magnetic column.

[0014] Furthermore, a positioning groove is provided on the top of the positioning seat, an arc-shaped interlayer is provided inside the positioning groove, a magnetic sheet is filled inside the arc-shaped interlayer, a plurality of balls are embedded on the surface of the magnetic sheet, and the magnetic sheet is pressed against the top of the arc-shaped interlayer through the balls.

[0015] Beneficial effects of the present invention:

[0016] 1. The automatic level for land surveying is equipped with an auxiliary stabilizing mechanism at the bottom of the automatic leveling component. The sliding magnetic sheet cooperates with the magnetic column on the top to provide a directional locking effect on the bottom position of the entire automatic leveling component. The positioning function can be achieved at any tilt angle, and it will not affect the subsequent leveling after switching locations. After placement, it can automatically increase the stability of the bottom of the leveling component to avoid continuous shaking.

[0017] 2. The laser part of the automatic level for land surveying and mapping achieves a sealing effect on the laser surface through the sliding ball on the surface and the arc-shaped clamping plate on the inner side of the irradiation port. At the same time, it can also further improve the stability and sealing of the laser part through direct contact without interfering with the horizontal irradiation of the laser at any angle.

[0018] 3. The automatic level for land surveying is equipped with an angle indicating component at the rear end, which can rotate synchronously according to the rotation angle of the automatic leveling component through mechanical linkage, and directly display the tilt angle after leveling from the rear, thereby providing a more accurate and reliable tilt angle indication function. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a schematic structural diagram of the appearance of an automatic level for land surveying and mapping;

[0020] Figure 2 This is a diagram of the internal structure of an automatic level for land surveying and mapping according to the present invention;

[0021] Figure 3 It is a structural schematic diagram of the automatic leveling component part of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the connecting mechanism part of the present invention;

[0023] Figure 5 is a cross-sectional view of the interior of the irradiation port of the present invention;

[0024] Figure 6 This is a disassembled diagram of the auxiliary stabilizing mechanism of the present invention;

[0025] In the figure: 1. level meter body; 2. irradiation port; 3. angle indication assembly; 4. indication window; 5. scale line; 6. connecting mechanism; 7. automatic leveling assembly; 8. auxiliary stabilizing mechanism; 9. top plate; 10. lower hanging plate; 11. longitudinal leveling sleeve; 12. transverse leveling sleeve; 13. rotating groove; 14. rotating plate; 15. plug-in block; 16. horizontal pointing rod; 17. connecting plate; 18. convex column; 19. sliding sleeve; 20. laser; 21. sliding ball; 22. plug-in rod; 23. vertical pointing rod; 24. indicating rod; 25. weight-increasing column; 26. outer positioning plate; 27. spring rod; 28. magnetic column; 29. ​​anti-skid pad; 30. inner convex ring; 31. arc-shaped card plate; 32. positioning seat; 33. positioning groove; 34. arc-shaped interlayer; 35. magnetic sheet; 36. ball; 37. counterweight block. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0027] See also Figures 1 to 6 The present invention provides the following technical solutions: an automatic level for land surveying and mapping, comprising a level body 1, the level body 1 comprising an angle indicating component 3, a connecting mechanism 6, an automatic leveling component 7 and an auxiliary stabilizing mechanism 8, an irradiation port 2 is opened on the side of the level body 1, a connecting mechanism 6 is screwed on the top of the interior of the level body 1, an automatic leveling component 7 is plugged into the bottom of the connecting mechanism 6, a horizontal pointing rod 16 is integrally formed on the side of the automatic leveling component 7, an insertion rod 22 is connected to the bottom of the end of the horizontal pointing rod 16, a laser 20 is screwed on the end of the insertion rod 22, and the end of the laser 20 is inserted into the interior of the irradiation port 2, a vertical pointing rod 23 is integrally formed on the bottom of the automatic leveling component 7, an outer positioning plate 26 is welded to the end of the vertical pointing rod 23, an angle indicating component 3 is screwed on the side of the level body 1, an indicating rod 24 is integrally formed on the side of the automatic leveling component 7, and the indicating rod 24 is embedded in the interior of the angle indicating component 3. The automatic level for land surveying is used to emit a light beam that always remains horizontal after being placed on the ground with a slightly inclined angle, so as to achieve the effect of leveling with the help of the horizontal light beam, and can provide the function of detecting the inclination angle in a single direction of the placed ground.

[0028] When the present invention is used, the level body 1 is directly placed on the ground or other planes. After the leveling switch is turned on, a light beam can be emitted from the irradiation port 2 with the help of the internal laser 20. The light beam is a horizontal light beam, and a straight line area that is always horizontal can be provided through the light beam. Inside the level body 1, the automatic leveling assembly 7 at the bottom is supported by the connecting mechanism 6. The longitudinal leveling sleeve 11 and the transverse leveling sleeve 12 can ensure that the weight-added column 25 below is always kept vertically downward. At this time, the insertion rod 22 part can always be kept in a horizontal state, and then the light beam irradiated from the laser 20 can also be kept in a horizontal state and pointed outward. At the bottom of the weight-added column 25, the auxiliary stabilizing mechanism 8 can be used to increase the resistance faced by the automatic leveling assembly 7 when it reaches a vertical state, thereby improving stability. After leveling is completed, the angle between the current placement plane and the horizontal plane is also realized by directly using the angle indicating assembly 3 at the rear end.

[0029] In this embodiment, the connecting mechanism 6 includes a longitudinal leveling sleeve 11 and a transverse leveling sleeve 12, and the longitudinal leveling sleeve 11 and the transverse leveling sleeve 12 are integrally formed, and a rotation groove 13 is provided at both ends of the transverse leveling sleeve 12, and a lower hanging plate 10 is inserted at both ends of the longitudinal leveling sleeve 11. A top plate 9 is welded on the top of the lower hanging plate 10, and the top plate 9 is fixed to the top of the inner wall of the level body 1 by screws, and the longitudinal leveling sleeve 11 and the transverse leveling sleeve 12 are in a vertical state. Specifically, the top plate 9 is fixed to the top of the inner wall of the level body 1, and the support effect of the automatic leveling assembly 7 below is achieved by means of the lower hanging plate 10, the longitudinal leveling sleeve 11 and the transverse leveling sleeve 12, so that the automatic leveling assembly 7 can rely on its own gravity to perform the horizontal and vertical rotation effect, ensuring that the weight-added column 25 at the bottom can always be kept in a vertical downward state.

[0030] In this embodiment, the automatic leveling assembly 7 includes a rotating plate 14, a horizontal pointing rod 16 and a vertical pointing rod 23. The inner side of the rotating plate 14 is integrally formed with an insert block 15. The outer side of the rotating plate 14 is welded with the horizontal pointing rod 16 and the vertical pointing rod 23. The end of the horizontal pointing rod 16 is integrally formed with a connecting plate 17. The bottom end of the vertical pointing rod 23 is integrally formed with a weight column 25. There are two rotating plates 14, and the rotating plates 14 are embedded in the rotating groove 13 through the inner insert block 15. One end of the indicating rod 24 is fixed to the side of the vertical pointing rod 23. The surface of the angle indicating assembly 3 is embedded with an indicating window 4, and the surface of the indicating rod 24 is sleeved with a counterweight block 37. The outer side of the indicating window 4 is engraved with a scale line 5. The indicating window 4 is in a semicircular structure as a whole. The end of the indicating rod 24 is against the inner side of the indicating window 4. The central axis of the indicating window 4 coincides with the central axis of the longitudinal leveling sleeve 11. An angle indicating component 3 is installed at the rear end, through which the angle indicating component 3 can rotate synchronously according to the rotation angle of the automatic leveling component 7 through mechanical linkage, and directly display the tilt angle after leveling from the rear, thereby providing a more accurate and reliable tilt angle indication function.

[0031] Specifically, after the automatic leveling component 7 is embedded into the rotating groove 13 through the top plug block 15, the circular plug block 15 can be used to rotate vertically inside the rotating groove 13. Then, when the plane on which the entire level body 1 is placed is tilted in the front-to-back direction, the automatic leveling component 7 can be rotated around the rotating groove 13, and finally the weight-added column 25 at the bottom of the automatic leveling component 7 can be kept in a vertical state. When the level body 1 is tilted to the side, the automatic leveling component 7 can be rotated around the longitudinal leveling sleeve 11. At the same time, when the automatic leveling component 7 rotates around the longitudinal leveling sleeve 11, the position of the indicator rod 24 on one side corresponding to the position of the indicator window 4 will change. Therefore, by observing the data of the corresponding points of the scale line 5 below the indicator window 4 and the indicator rod 24, the angle data in the lateral direction between the ground on which the current level body 1 is placed and the horizontal plane can be determined. The data can increase the accuracy of the test through the extension of the indicator rod 24, and the mechanical linkage makes the data more reliable without the need for additional detection electronic equipment.

[0032] In this embodiment, an inner convex ring 30 is embedded on the inner wall of the irradiation port 2, and an arc-shaped clamping plate 31 is integrally formed on the inner side of the inner convex ring 30. A sliding sleeve 19 is sleeved on the surface of the insertion rod 22, and a sliding ball 21 is integrally formed on the surface of the sliding sleeve 19. The surface of the sliding ball 21 rests on the inner wall of the arc-shaped clamping plate 31. A convex column 18 is integrally formed at the rear end of the insertion rod 22, and the top of the convex column 18 is fixed below the connecting plate 17. The inner wall diameter of the arc-shaped clamping plate 31 is the same as the diameter of the sliding ball 21, and the sliding sleeve 19 moves linearly along the surface of the insertion rod 22. The sliding ball 21 on the surface cooperates with the arc-shaped clamping plate 31 on the inner side of the irradiation port 2 to achieve the sealing effect on the surface of the laser 20. At the same time, the stability and sealing of the laser 20 part can be further improved through direct contact without interfering with the horizontal irradiation of the laser 20 at any angle.

[0033] Specifically, the rod 22 passes through the interior of the irradiation port 2. When the level body 1 tilts forward or backward or sideways, the automatic leveling assembly 7 can ensure that the rod 22 remains partially horizontal. Therefore, a certain angle is generated between the rod 22 and the central axis of the irradiation port 2. The surface of the rod 22 contacts the arc-shaped clamping plate 31, which is also an arc surface, through the sliding ball 21. Therefore, when the rod 22 tilts, the interior of the irradiation port 2 can also be closed by cooperating with the arc-shaped clamping plate 31. At the same time, the arc-shaped clamping plate 31 supports the sliding ball 21, so that the rod 22 can be clamped, thereby reinforcing and supporting the surface of the rod 22, thereby improving the stability of the terminal laser 20 during irradiation.

[0034] In this embodiment, the auxiliary stabilization mechanism 8 includes a positioning seat 32 and a positioning groove 33. The end of the weight-added column 25 is integrally formed with an outer positioning plate 26. A magnetic column 28 is inserted in the middle of the outer positioning plate 26. A spring rod 27 is inserted at the top of the magnetic column 28. An anti-skid pad 29 is attached to the bottom of the magnetic column 28. A positioning groove 33 is provided at the top of the positioning seat 32. An arc-shaped interlayer 34 is provided inside the positioning groove 33. A magnetic sheet 35 is filled inside the arc-shaped interlayer 34. A plurality of balls 36 are embedded on the surface of the magnetic sheet 35, and the magnetic sheet 35 is pressed against the top of the arc-shaped interlayer 34 through the balls 36. An auxiliary stabilizing mechanism 8 is installed at the bottom of the automatic leveling component 7. The sliding magnetic sheet 35 cooperates with the magnetic column 28 on the top to provide a directional locking effect on the bottom position of the entire automatic leveling component 7. The positioning function can be achieved at any tilt angle and will not affect the subsequent leveling after switching locations. After placement, the stability of the bottom of the leveling component can be automatically increased to avoid continuous shaking.

[0035] Specifically, the magnetic sheet 35 slides inside the arc-shaped interlayer 34. Since the arc-shaped interlayer 34 is semicircular as a whole, the magnetic sheet 35 can always be at the bottom position. After the top outer positioning plate 26 reaches a vertical state due to its own gravity, the inner magnetic column 28 and the magnetic sheet 35 are at the closest distance. The anti-skid pad 29 is pressed to the bottom position of the positioning groove 33 through the magnetic effect. The friction between the automatic leveling component 7 and the positioning seat 32 is increased with the help of the anti-skid pad 29, ensuring that the automatic leveling component 7 can quickly stabilize and reduce the amplitude of shaking. Since the inner magnetic sheet 35 contacts the inner wall of the arc-shaped interlayer 34 through the ball 36, it can slide again directly when re-leveling is performed later.

[0036] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic level for land surveying, comprising a level body (1), characterized in that: The level body (1) comprises an angle indicating component (3), a connecting mechanism (6), an automatic leveling component (7) and an auxiliary stabilizing mechanism (8); an irradiation port (2) is provided on the side of the level body (1); a connecting mechanism (6) is screwed to the top of the interior of the level body (1); the automatic leveling component (7) is plugged into the bottom of the connecting mechanism (6); a horizontal pointing rod (16) is integrally formed on the side of the automatic leveling component (7); an insertion rod (22) is connected to the bottom of the end of the horizontal pointing rod (16); a laser (20) is screwed to the end of the insertion rod (22); and the end of the laser (20) is inserted into the The interior of the irradiation port (2) is provided with a vertical pointing rod (23) integrally formed at the bottom of the automatic leveling component (7), an outer positioning plate (26) is welded to the end of the vertical pointing rod (23), an angle indicating component (3) is screwed to the side of the level body (1), an indicating rod (24) is integrally formed on the side of the automatic leveling component (7), and the indicating rod (24) is embedded in the interior of the angle indicating component (3), and the connecting mechanism (6) includes a longitudinal leveling sleeve (11) and a transverse leveling sleeve (12), and the longitudinal leveling sleeve (11) and the transverse leveling sleeve (12) are integrally formed, and the transverse leveling sleeve (12) is integrally formed. ) are provided with rotation grooves (13) at both ends, lower hanging plates (10) are inserted at both ends of the longitudinal leveling sleeve (11), the automatic leveling assembly (7) comprises a rotation plate (14), a horizontal pointing rod (16) and a vertical pointing rod (23), an insert block (15) is integrally formed on the inner side of the rotation plate (14), a horizontal pointing rod (16) and a vertical pointing rod (23) are welded on the outer side of the rotation plate (14), a connecting plate (17) is integrally formed in the middle of the end of the horizontal pointing rod (16), a weight-increasing column (25) is integrally formed at the bottom end of the vertical pointing rod (23), and an inner wall of the irradiation port (2) is embedded with an inner A convex ring (30), the inner side of the inner convex ring (30) is integrally formed with an arc-shaped clamping plate (31), the surface of the insertion rod (22) is sleeved with a sliding sleeve (19), the surface of the sliding sleeve (19) is integrally formed with a sliding ball (21), the surface of the sliding ball (21) is pressed against the inner wall of the arc-shaped clamping plate (31), the rear end of the insertion rod (22) is integrally formed with a convex column (18), the top of the convex column (18) is fixed below the connecting plate (17), the inner wall diameter of the arc-shaped clamping plate (31) is the same as the diameter of the sliding ball (21), and the sliding sleeve (19) moves linearly along the surface of the insertion rod (22).

2. The automatic level for land surveying and mapping according to claim 1, characterized in that: A top plate (9) is welded to the top of the lower hanging plate (10), and the top plate (9) is fixed to the top of the inner wall of the level body (1) by screws, and the longitudinal leveling sleeve (11) and the transverse leveling sleeve (12) are in a vertical state.

3. The automatic level for land surveying and mapping according to claim 1, characterized in that: The number of the rotating plates (14) is two, and the rotating plates (14) are embedded in the interior of the rotating groove (13) through the inner plug block (15); one end of the indicating rod (24) is fixed to the side of the vertical pointing rod (23); an indicating window (4) is embedded on the surface of the angle indicating assembly (3); and a counterweight block (37) is sleeved on the surface of the indicating rod (24).

4. The automatic level for land surveying and mapping according to claim 3, characterized in that: The outer side of the indicating window (4) is engraved with scale lines (5), the indicating window (4) is in an overall semicircular structure, the end of the indicating rod (24) is against the inner side of the indicating window (4), and the central axis of the indicating window (4) coincides with the central axis of the longitudinal leveling sleeve (11).

5. The automatic level for land surveying and mapping according to claim 1, characterized in that: The auxiliary stabilization mechanism (8) comprises a positioning seat (32) and a positioning groove (33); the end of the weight-increasing column (25) is integrally formed with an outer positioning disk (26); a magnetic column (28) is inserted in the middle of the outer positioning disk (26); a spring rod (27) is inserted at the top of the magnetic column (28); and an anti-slip pad (29) is attached to the bottom of the magnetic column (28).

6. The automatic level for land surveying and mapping according to claim 5, characterized in that: A positioning groove (33) is provided on the top of the positioning seat (32), an arc-shaped interlayer (34) is provided inside the positioning groove (33), a magnetic sheet (35) is filled inside the arc-shaped interlayer (34), a plurality of balls (36) are embedded on the surface of the magnetic sheet (35), and the magnetic sheet (35) is pressed against the top of the arc-shaped interlayer (34) via the balls (36).

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