Mining subsidence area surveying and mapping level gauge

Abstract

The mining subsidence area surveying and mapping level gauge comprises a first supporting plate, a foot stool, a leveling mechanism, a lifting mechanism, a second supporting plate and a level gauge body, the foot stool is hinged to the lower portion of the first supporting plate through a first connecting block, and the lifting mechanism is arranged on the lower portion of the first supporting plate; the lower portion of the leveling mechanism is connected with the first supporting plate through a lifting mechanism. The level gauge body is mounted on the second supporting plate, and the second supporting plate is connected with the upper part of the leveling mechanism. When the height of the leveling instrument body is adjusted through the lifting mechanism, the limiting handle is pressed by hands, so that the height can be conveniently adjusted after the end part of the limiting handle is separated from the lifting rod, and the inclination angle of the second supporting plate can be conveniently adjusted only by pressing the connecting plate downwards and moving the clamping jaw downwards during leveling; the device can simplify the lifting and leveling process and improve the surveying and mapping efficiency of the mining subsidence area.

Description

Technical Field

[0001] The invention relates to the technical field of mining exploration, and in particular to a leveling instrument for surveying and mapping mining subsidence areas. Background Art

[0002] After the mining of underground mineral deposits such as coal mines, it is easy to cause the surrounding rock strata to move and collapse. In order to prevent the collapse from affecting the surrounding buildings, it is necessary to map the collapsed area so as to formulate a plan based on the scope and depth of the collapse. Among them, the level is a commonly used instrument for measuring the depth of collapse. The level measures the height difference between two points on the ground by establishing a horizontal line of sight. Therefore, it is necessary to keep the level in a horizontal state after installation. Since the ground in the mining subsidence area is mostly rugged, other auxiliary devices are required for leveling. For example, Chinese patent application number 202310253279.3 discloses a coal mining subsidence area surveying and mapping level, including a base plate, a leveling mechanism, a lifting mechanism and a level body; the leveling mechanism is installed on the base plate, the lifting mechanism is installed on the leveling mechanism, and the level body is installed on the lifting mechanism. The lifting mechanism of the device mainly adopts an X-shaped lifting bracket. After this type of bracket is extended, it is easy to cause shaking due to the assembly gap between the connecting rods, which is not conducive to the measurement work of the level instrument. Secondly, the handle needs to be turned during lifting and lowering, which is cumbersome to operate. At the same time, the leveling mechanism mainly drives the rotating disk and the fixed column to move up and clamp the ball by rotating the threaded sleeve. The whole operation process is cumbersome and it is easy to cause shaking during adjustment, affecting the leveling. Therefore, a level instrument for surveying and mapping mining subsidence areas is needed, which is provided with a lifting mechanism and a leveling mechanism that are easy to adjust, simplifies the lifting and leveling process, and improves the efficiency of surveying and mapping mining subsidence areas. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a level instrument for surveying and mapping mining subsidence areas, which is provided with a lifting mechanism and a leveling mechanism that are easy to adjust, thereby simplifying the lifting and leveling process and improving the efficiency of surveying and mapping mining subsidence areas.

[0004] The present invention is achieved through the following technical solutions:

[0005] The present invention proposes a level for surveying and mapping mining subsidence areas, comprising: a first support plate, a tripod, a leveling mechanism, a lifting mechanism, a second support plate, and a level body. The tripod is hinged to the lower part of the first support plate through a first connecting block, the lifting mechanism is arranged at the lower part of the first support plate, and the lower part of the leveling mechanism is connected to the first support plate through the lifting mechanism; the level body is installed on the second support plate, and the second support plate is connected to the upper part of the leveling mechanism.

[0006] Furthermore, the lifting mechanism includes a lifting rod, a sleeve, and a limit handle. The sleeve is installed at the lower part of the first support plate. The lifting rod passes through the first support plate and is inserted into the sleeve. The middle part of the limit handle is symmetrically installed on both sides of the sleeve through the second connecting block. One end of the limit handle extends from the opening on the side of the sleeve into the sleeve, and the extended end of the limit handle is tightly pressed against the side of the lifting rod. The upper part of the lifting rod is connected to the leveling mechanism.

[0007] Furthermore, the ends of the limit handle are connected to each other via a first spring, and a rubber pad is provided on the extending end of the limit handle.

[0008] Furthermore, the leveling mechanism includes an inner sphere, an outer sphere, and a claw. The inner sphere is connected to the lifting rod, the outer sphere is sleeved on the outside of the inner sphere, and the outer sphere is connected to the second support plate through a connecting rod. A connecting plate is sleeved on the connecting rod, the upper part of the claw is connected to the connecting plate, the lower part of the claw extends into the outer sphere through a groove on the outer sphere, and the end of the claw is tightly attached to the outer surface of the inner sphere.

[0009] Furthermore, a second spring is provided between the connecting plate and the outer sphere, and the second spring is sleeved on the connecting rod.

[0010] Furthermore, there are multiple claws, which are distributed on the connecting plate in a ring array, and rubber pads are provided at the lower ends of the claws, and the intervals between the lower ends of the claws are smaller than the diameter of the inner sphere.

[0011] Furthermore, the claws are connected to each other via a connecting ring, and the inner diameter of the connecting ring is larger than the outer diameter of the outer sphere.

[0012] Furthermore, a limiting portion is provided on the upper portion of the tripod, and after the tripod is unfolded, the limiting portion is tightly attached to the lower end surface of the first supporting plate.

[0013] Furthermore, a hook is installed on the outer periphery of the first support plate, the hook is hinged to the side of the first support plate, and a torsion spring is provided between the hook and the first support plate, and the lower end of the hook is hooked on one side of the limiting part.

[0014] Furthermore, a telescopic portion is provided at the lower end of the tripod, the telescopic portion is inserted into the tripod, and a locking bolt is provided between the telescopic portion and the tripod.

[0015] The beneficial effects of the present invention are as follows: when adjusting the height of the level body through the lifting mechanism, you only need to press the limit handle by hand, so that the height can be easily adjusted after the end of the limit handle is separated from the lifting rod. When leveling, you only need to press the connecting plate downward to move the claw down, and then you can conveniently adjust the inclination angle of the second support plate. This device can simplify the lifting and leveling process and improve the efficiency of surveying and mapping of mining subsidence areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the lifting mechanism of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the leveling mechanism of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the hook of the present invention;

[0020] In the figure: 1-first support plate, 2-tripod, 3-leveling mechanism, 4-lifting mechanism, 5-second support plate, 6-level body, 7-first connecting block, 8-lifting rod, 9-sleeve, 10-limiting handle, 11-second connecting block, 12-first spring, 13-inner sphere, 14-outer sphere, 15-claw, 16-connecting rod, 17-connecting plate, 18-second spring, 19-connecting ring, 20-limiting part, 21-hook, 22-telescopic part. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0024] like Figures 1 to 4As shown, an embodiment of the present invention provides a level for surveying and mapping mining subsidence areas, comprising: a first support plate 1, a tripod 2, a leveling mechanism 3, a lifting mechanism 4, a second support plate 5, and a level body 6. The tripod 2 is hinged to the lower part of the first support plate 1 through a first connecting block 7, the lifting mechanism 4 is arranged at the lower part of the first support plate 1, and the lower part of the leveling mechanism 3 is connected to the first support plate 1 through the lifting mechanism 4; the level body 6 is installed on the second support plate 5, and the second support plate 5 is connected to the upper part of the leveling mechanism 3.

[0025] When setting up the level, first unfold the tripod 2 so that the limiting part 20 on the tripod 2 is close to the lower part of the first support plate 1, and the hook 21 hooks the limiting part 20 to fix the tripod 2, and then adjust the telescopic part 22 to make the first support plate 1 close to the horizontal, and then tighten the locking bolt to fix the telescopic part 22 in the tripod 2. After the operator installs the tripod 2, hold the lower part of the limiting handle 10 with his hand so that the other end of the limiting handle 10 overcomes the elastic force of the first spring 12 and then unfolds, so that the end of the first spring 12 with the rubber pad is separated from the lifting rod 8, and then adjust the height of the level body 6. After adjusting to a suitable height, release the limiting handle 10, and clamp the lifting rod 8 at the end of the limiting handle 10 under the elastic force of the first spring 12. It is fixed in the sleeve 9. After the height adjustment is completed, the operator presses the connecting plate 17 downward, so that the connecting plate 17 overcomes the elastic force and drives the claw 15 to move downward, so that the claw 15 is separated from the inner sphere 13. At this time, the outer sphere 14 can rotate freely relative to the inner sphere 13, so as to adjust the angle of the level body 6 to make it close to horizontal. Then, the connecting plate 17 is released. Under the elastic force of the second spring 18, the connecting plate 17 drives the claw 15 to move upward, so that the lower part of the connecting rod claw 15 is tightly pressed against the outer periphery of the inner sphere 13, so that the friction force prevents the inner sphere 13 and the outer sphere 14 from moving relative to each other, so that the level body 6 maintains its angle. Finally, after fine-tuning the reference line through the components inside the level body 6, the horizontal height can be detected.

[0026] When adjusting the height of the level body 6 through the lifting mechanism 4 of the device, it is only necessary to press the limit handle 10 by hand, and when leveling, it is only necessary to press the connecting plate 17 downward. The operation is simple and efficient, and it is not easy to shake when locked, which simplifies the lifting and leveling process and improves the efficiency of surveying and mapping of mining subsidence areas.

[0027] In a preferred embodiment, the lifting mechanism 4 includes a lifting rod 8, a sleeve 9, and a limit handle 10. The sleeve 9 is installed at the lower part of the first support plate 1. The lifting rod 8 passes through the first support plate 1 and is inserted into the sleeve 9. The middle part of the limit handle 10 is symmetrically installed on both sides of the sleeve 9 through the second connecting block 11. One end of the limit handle 10 extends from the opening on the side of the sleeve 9 into the sleeve 9, and the extended end of the limit handle 10 is tightly pressed against the side of the lifting rod 8. The upper part of the lifting rod 8 is connected to the leveling mechanism 3. The extended end of the limit handle 10 can clamp the lifting rod 8 and fix it in the sleeve 9 through friction. The sleeve 9 can limit the lifting rod 8 so that it can only move in the axial direction, thereby reducing shaking and avoiding affecting the measurement of the level body 6.

[0028] In a specific embodiment, the ends of the limit handle 10 are interconnected by a first spring 12. The first spring 12 provides elastic force so that the end of the limit handle 10 clamps the lifting rod 8 to maintain the stability of the level body 6. A rubber pad is provided on the extending end of the limit handle 10. The rubber pad has a large friction coefficient, so that after the end of the limit handle 10 clamps the lifting rod 8, the lifting rod 8 can be fixed in the sleeve 9 by friction.

[0029] Preferably, the leveling mechanism 3 includes an inner sphere 13, an outer sphere 14, and a claw 15. The inner sphere 13 is connected to the lifting rod 8, and the outer sphere 14 is mounted on the outside of the inner sphere 13. The outer sphere 14 is connected to the second support plate 5 through a connecting rod 16. A connecting plate 17 is mounted on the connecting rod 16. The upper part of the claw 15 is connected to the connecting plate 17, and the lower part of the claw 15 extends into the outer sphere 14 through a groove on the outer sphere 14. The end of the claw 15 is tightly attached to the outer surface of the inner sphere 13. The inner sphere 13 rotates in the outer sphere 14 to achieve multi-angle adjustment. A dovetail groove is provided on the outer sphere 14. After the claw 15 moves up, it can generate a movement trend toward the inner sphere 13, so that the claw 15 is pressed tightly against the inner sphere 13, generating friction so that the inner sphere 13 is fixed in the outer sphere 14, thereby maintaining the angle of the level body 6.

[0030] In a preferred embodiment, a second spring 18 is provided between the connecting plate 17 and the outer sphere 14. The second spring 18 is mounted on the connecting rod 16. The second spring 18 provides elastic force to move the connecting plate 17 upward, thereby driving the claw 15 to clamp the inner sphere 13, so that the inner sphere 13 and the outer sphere 14 are fixed to each other.

[0031] Specifically, there are multiple claws 15, which are distributed in a ring array on the connecting plate 17. A rubber pad is provided at the lower end of the claw 15, which can increase the friction between the claw 15 and the inner sphere 13. The interval between the lower ends of the claws 15 is smaller than the diameter of the inner sphere 13, so that the claws 15 can contact the inner sphere 13 after moving upward, thereby fixing the inner sphere 13.

[0032] Preferably, the claws 15 are connected to each other via a connecting ring 19 , the inner diameter of the connecting ring 19 is larger than the outer diameter of the outer sphere 14 , and the connecting ring 19 can suppress the tendency of the claws 15 to expand outward, so that the claws 15 can clamp the inner sphere 13 more firmly.

[0033] In a specific embodiment, a limiting portion 20 is provided on the upper part of the tripod 2. After the tripod 2 is unfolded, the limiting portion 20 is tightly attached to the lower end surface of the first support plate 1. After the limiting portion 20 presses against the lower part of the first support plate 1, the outward angle of the tripod 2 can be limited, thereby keeping the tripod 2 outward and improving stability.

[0034] Specifically, a hook 21 is installed on the outer periphery of the first support plate 1, the hook 21 is hinged to the side of the first support plate 1, and a torsion spring is provided between the hook 21 and the first support plate 1, and the lower end of the hook 21 is hooked on one side of the limiting portion 20, and the torsion spring provides elastic force to make the lower part of the hook 21 lean against the limiting portion 20, thereby hooking the limiting portion 20, so that the limiting portion 20 maintains a tight fit with the first support plate 1.

[0035] Specifically, a telescopic portion 22 is provided at the lower end of the tripod 2, the telescopic portion 22 is inserted into the tripod 2, and a locking bolt is provided between the telescopic portion 22 and the tripod 2, so that the tripod 2 can be stably supported by the telescopic portion 22 on rugged ground.

[0036] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A leveling instrument for surveying and mapping mining subsidence areas, characterized in that: include: A first support plate (1), a tripod (2), a leveling mechanism (3), a lifting mechanism (4), a second support plate (5), and a leveling instrument body (6); the tripod (2) is hinged to the lower part of the first support plate (1) through a first connecting block (7); the lifting mechanism (4) is arranged at the lower part of the first support plate (1); the lower part of the leveling mechanism (3) is connected to the first support plate (1) through the lifting mechanism (4); the leveling instrument body (6) is installed on the second support plate (5), and the second support plate (5) is connected to the upper part of the leveling mechanism (3).

2. A mining subsidence area surveying and mapping level according to claim 1, characterized in that: The lifting mechanism (4) comprises a lifting rod (8), a sleeve (9), and a limit handle (10). The sleeve (9) is installed at the lower part of the first support plate (1). The lifting rod (8) passes through the first support plate (1) and is inserted into the sleeve (9). The middle part of the limit handle (10) is symmetrically installed on both sides of the sleeve (9) through a second connecting block (11). One end of the limit handle (10) extends from an opening on the side of the sleeve (9) into the sleeve (9), and the extended end of the limit handle (10) is tightly pressed against the side of the lifting rod (8). The upper part of the lifting rod (8) is connected to the leveling mechanism (3).

3. A mining subsidence area surveying and mapping level according to claim 2, characterized in that: The ends of the limit handle (10) are connected to each other via a first spring (12), and a rubber pad is provided on the extending end of the limit handle (10).

4. A mining subsidence area surveying and mapping level according to claim 2, characterized in that: The leveling mechanism (3) comprises an inner sphere (13), an outer sphere (14), and a claw (15); the inner sphere (13) is connected to a lifting rod (8); the outer sphere (14) is sleeved on the outside of the inner sphere (13); and the outer sphere (14) is connected to a second support plate (5) via a connecting rod (16); a connecting plate (17) is sleeved on the connecting rod (16); the upper part of the claw (15) is connected to the connecting plate (17); the lower part of the claw (15) extends into the outer sphere (14) through a slot on the outer sphere (14); and the end of the claw (15) is in close contact with the outer surface of the inner sphere (13).

5. A mining subsidence area surveying and mapping level instrument according to claim 4, characterized in that: A second spring (18) is provided between the connecting plate (17) and the outer sphere (14), and the second spring (18) is sleeved on the connecting rod (16).

6. A mining subsidence area surveying and mapping level instrument according to claim 5, characterized in that: There are a plurality of claws (15), which are distributed in a ring array on the connecting plate (17), and rubber pads are provided at the lower ends of the claws (15), and the intervals between the lower ends of the claws (15) are smaller than the diameter of the inner sphere (13).

7. A mining subsidence area surveying and mapping level instrument according to claim 6, characterized in that: The claws (15) are connected to each other via a connecting ring (19), and the inner diameter of the connecting ring (19) is larger than the outer diameter of the outer sphere (14).

8. The mining subsidence area surveying and mapping level instrument according to claim 1, characterized in that: A limiting portion (20) is provided on the upper portion of the tripod (2); after the tripod (2) is unfolded, the limiting portion (20) is in close contact with the lower end surface of the first support plate (1).

9. A mining subsidence area surveying and mapping level instrument according to claim 8, characterized in that: A hook (21) is installed on the outer periphery of the first support plate (1), the hook (21) is hinged to the side of the first support plate (1), a torsion spring is provided between the hook (21) and the first support plate (1), and the lower end of the hook (21) is hooked on one side of the limiting portion (20).

10. A mining subsidence area surveying and mapping level instrument according to claim 9, characterized in that: A telescopic portion (22) is provided at the lower end of the tripod (2); the telescopic portion (22) is inserted into the tripod (2); and a locking bolt is provided between the telescopic portion (22) and the tripod (2).

Images