CN113898832A

CN113898832A - Surveying and mapping level gauge for mining subsidence area of coal mine area

Info

Publication number: CN113898832A
Application number: CN202111134972.6A
Authority: CN
Inventors: 石磊; 王宁
Original assignee: Individual
Current assignee: Hubei Shenlong Geological Engineering Survey Institute Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-01-07
Anticipated expiration: 2041-09-27
Also published as: CN113898832B

Abstract

The invention relates to the technical field of leveling instrument equipment, in particular to a surveying and mapping leveling instrument for a mining subsidence area of a coal mine area, which comprises a support, wherein the bottom of the support is hinged with a plurality of supporting legs, the top of the support is provided with a lifting mechanism, the bottom of the lifting mechanism is provided with an installation mechanism, and the top of the lifting mechanism is provided with a leveling instrument; the lifting mechanism comprises a plurality of insertion rods and a first sleeve, the support is provided with the insertion rods, the insertion rods are inserted into the first sleeve, the first sleeve is inserted into the insertion rods, and the first sleeve is provided with a clamping groove. According to the invention, by using the lifting mechanism, the leveling instrument can be directly lifted after a user places the supporting legs, so that the leveling instrument reaches the height which is convenient for the user to survey and draw, the user can keep an upright posture for surveying and drawing, the discomfort caused by the user bending is reduced, the comfort level in the use process is increased, and the bottom of the lifting mechanism is connected with a mechanism such as a bolt for mounting and dismounting, so that the convenience for mounting and dismounting the device is greatly increased.

Description

Surveying and mapping level gauge for mining subsidence area of coal mine area

Technical Field

The invention relates to the technical field of level instrument equipment, in particular to a surveying and mapping level instrument for a mining subsidence area of a coal mine area.

Background

The level is an instrument for establishing a horizontal sight line to measure the height difference between two points on the ground. The principle is to measure the height difference between ground points according to the leveling principle. The main components are hopeful to be a telescope, a tube level gauge (or compensator), a vertical shaft, a base and a foot screw. It is divided into a micro-tilt level, an automatic leveling level, a laser level and a digital level (also called an electronic level) according to the structure.

The invention discloses a level for engineering measurement, which comprises two bottom plates, wherein the tops of the two bottom plates are welded with the same base plate, side plates are welded on two sides of the base plate, the side, close to each other, of the two side plates is provided with the same placing plate in a sliding mode, the top of the placing plate is fixedly provided with a level body, two sides of the top of the base plate are respectively provided with a rotating groove and a rotating hole, a first screw rod and a second screw rod are respectively and rotatably arranged in the rotating groove and the rotating hole, chain wheels are fixedly sleeved on the outer sides of the first screw rod and the second screw rod, the outer sides of the two chain wheels are meshed with the same chain, two sides of the top of the placing plate are respectively provided with a threaded hole, and the first screw rod and the second screw rod are respectively in threaded connection with the corresponding threaded holes. The height adjusting device is simple in structure and convenient to use, the height of the level body can be conveniently adjusted and fixed after being adjusted, whether the level body is in a horizontal state or not can be observed, and the use requirements of users are met.

Although this invention provides improvements for height adjustment, the following drawbacks are still in need of improvement:

the length of the stretching of the supporting leg before the stretching is about to the shoulders of a person, so that the user can conveniently adjust the horizontal angle of the supporting leg and the level gauge subsequently, the height of the supporting leg is shorter than the height difference of the user after the level is adjusted, the user is forced to keep a stooped posture in surveying and mapping, and the user can keep an uncomfortable posture for a long time.

Therefore, the surveying and mapping level for the mining subsidence area of the coal mine area is provided.

Disclosure of Invention

The invention aims to provide a surveying and mapping level for a mining subsidence area of a coal mine area, which can be directly lifted by a user after a supporting leg is placed by the user through a lifting mechanism, so that the level reaches the height convenient for the user to survey and map, the user can keep an upright posture to carry out surveying and mapping, the discomfort caused by the user bending is reduced, the comfort level in the using process is increased, and the bottom of the lifting mechanism is connected with a mechanism such as a bolt for mounting and dismounting, so that the convenience for mounting and dismounting of the device is greatly increased, and the problems in the background technology are solved.

In order to achieve the purpose, the invention provides the following technical scheme:

a surveying and mapping level for a mining subsidence area of a coal mine area comprises a support, wherein the bottom of the support is hinged with a plurality of support legs, the top of the support is provided with a lifting mechanism, the bottom of the lifting mechanism is provided with an installation mechanism, and the top of the lifting mechanism is provided with a level;

the lifting mechanism comprises an insert rod and a first sleeve, a plurality of support seats are arranged on the support seats, the insert rod is inserted into the first sleeve, the first sleeve is inserted into the insert rod, a clamping groove is formed in the first sleeve, a connecting rod is fixedly connected to the outer wall of the insert rod, a first spring is sleeved on the connecting rod, a second sleeve is arranged on the connecting rod in an inserting mode, elastic clamping blocks are fixedly connected to two sides of the second sleeve, two ends of the first spring are fixedly connected to the insert rod and the second sleeve respectively, a connecting block is fixedly connected to one end of the second sleeve, the second sleeve slides in the clamping groove and is multiple, a base is fixedly connected to the top of the first sleeve jointly, and a level is fixedly connected to the top of the base.

Place and level landing leg and spirit level at the user after, directly upwards lift up the spirit level, make the first sleeve rebound that the base bottom is connected, at this moment the elasticity fixture block can slide in the draw-in groove, and the card is in the draw-in groove, adjust to suitable height until the spirit level, the user stops lifting up, after the use, press down the connecting block downwards, make the second sleeve drive the elasticity fixture block to the inside removal of first sleeve, make the elasticity fixture block leave the draw-in groove, at this moment press down the spirit level, just can let the spirit level get back to the normal position, make the user after placing the landing leg, can raise the height to needs with the spirit level, let the user need not bend the waist survey and drawing, increase user's use comfort.

Preferably, the installation mechanism includes bolt and annular piece, including the bolt installation, the bottom fixedly connected with two clamp blocks of inserted bar, the annular piece is established in the outside of clamp block, on seted up the ring channel, the annular piece card is in the ring channel.

When the level is installed, the inserted bar is only required to be aligned and then pressed downwards, the middle positions of the two clamping blocks at the bottom of the inserted bar are extruded by the inserted pin, the clamping blocks are outwards expanded, and the annular blocks on the clamping blocks are clamped into the annular grooves, so that the clamping blocks are firmly clamped, and the level is convenient to install by a user.

Preferably, the support is internally provided with a third connecting plate, the bolt is fixedly connected to the top of the third connecting plate and penetrates through the top of the third connecting plate to be inserted into the bottom of the support, the bottom of the support is fixedly connected with a third sleeve, limiting grooves are formed in two sides of the third sleeve, guide rods are inserted into the limiting grooves in a sliding manner, second rotating blocks are fixedly connected to two sides of the guide rods, torsion springs are fixedly connected to the second rotating blocks and rotatably connected with limiting blocks through the torsion springs, the limiting blocks are inserted into the limiting grooves, a press block is fixedly connected to the bottom of the guide rods, fourth springs are fixedly connected to the bottom of the limiting grooves and the top of the press block, and the guide rods are rotatably inserted into the bottom of the third connecting plate.

Press down the pressing block when the surveyor's level is dismantled to needs, make the stopper receive the extrusion of spacing groove and internal rotation, retract into the third sleeve, rotatory pressing block once, make the stopper stagger the position of spacing groove, loosen again and press the pressing block, the elasticity that utilizes the fourth spring makes the pressing block descend and the normal position of circling back, at this moment will take the third connecting plate downstream with the guide arm that the pressing block links to each other, make the bolt leave the clearance between two clamp blocks, and when needs installation surveyor's level, then upwards press the pressing block, make the guide arm take the bolt jack-up that makes progress, it can to let the bolt inject between two clamp blocks, make the user just can take down the surveyor's level after having pressed the pressing block.

Preferably, the base is provided with a sun-screening mechanism, the sun-screening mechanism comprises a trigger mechanism and a baffle, the top of the base is sequentially connected with two first connecting plates, one sides of the first connecting plates, which are close to the outer side of the base, are jointly connected with sun-screening cloth, third springs are connected between the base and the first connecting plates and between the two first connecting plates, first rotating blocks are fixedly connected on the side walls of the two first connecting plates, which are close to each other, a plurality of first rotating blocks are rotatably connected with connecting rods, the connecting rods in the same vertical direction are mutually rotatably connected, the baffle is rotatably connected on the uppermost first connecting plate, the bottom of the baffle is fixedly connected with a second connecting plate, the top of the base is connected with a plurality of rope belts, the rope belts penetrate through the first connecting plates and the baffle and are connected on the second connecting plate, and the bottom of the baffle is fixedly connected with a hook, the hook is hung on the trigger mechanism.

When sunshine is directly to the surveyor's level, trigger mechanism receives and triggers, make first connecting plate upwards rise under the effect of third spring elasticity, make connecting rod on the first connecting plate also slowly rotate to vertical trend simultaneously, and make the puggaree on the first connecting plate expand, shelter from the sunshine of both sides, loose fag end rises when the take at first connecting plate rises the take after that, make the fag end tighten, and the elasticity of third spring is still producing the effect, and then make the fag end slowly turn over and roll over upwards through this baffle of second connecting plate pulling, when the third spring is completely extended, the fag end also just pulls the baffle to near of horizontal angle, shelter from the sunshine of top, and then when using the surveyor's level, need not have another one person to prop the umbrella and shelter from sunshine, the cost of manpower has been reduced.

Preferably, trigger mechanism includes the photovoltaic board, photovoltaic board fixed connection is in one side of base, the trench has been seted up in the base, fixed connection has the iron core in the trench, the winding has the coil on the iron core, coil and photovoltaic board electric connection, sliding connection has two magnets, two in the trench the equal fixedly connected with second spring in one side of magnet, the one end of second spring is connected with the lateral wall of trench, the trench internal rotation is connected with two square couples.

Shine behind the photovoltaic board at sunshine, make the coil of being connected with the photovoltaic board get electricity, the messenger has produced magnetism by coil winding iron core, and make two magnet receive the magnetic force of coil to promote to remove to both sides, magnet then can strike on square couple, and let the square couple rotatory, make the hook on the baffle be forced to break away from square couple, the third spring will begin the action after that, and when not needing sun-proof mechanism, then press first connecting plate, let first connecting plate remove along the gag lever post downwards, and turn over the baffle inwards, hang the hook on square couple can, make sun-proof mechanism can produce the action voluntarily when having sunshine, increase the convenience of device.

Preferably, the sun-proof mechanisms are symmetrically arranged on two sides of the level, and the trigger mechanism is arranged in the middle of the sun-proof mechanism.

The sun-shading mechanism arranged on the two sides can better play a sun-shading effect, and can not shade the level, so that the level can normally work on the premise of receiving the sun-shading effect, and the trigger mechanism can effectively enable the sun-shading mechanism to work.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, by using the lifting mechanism, the leveling instrument can be directly lifted after a user places the supporting legs, so that the leveling instrument reaches the height which is convenient for the user to survey and draw, the user can keep an upright posture for surveying and drawing, the discomfort caused by the user bending is reduced, the comfort level in the use process is increased, and the bottom of the lifting mechanism is connected with a mechanism such as a bolt for mounting and dismounting, so that the convenience for mounting and dismounting the device is greatly increased.

2. According to the invention, by using the sun-shading mechanism, when sunlight is directly emitted to the level, the baffle plate can be unfolded and the sun-shading cloth can be lifted to shade the two sides and the upper part of the level, so that the level is shaded without additionally arranging a person to prop an umbrella, and the labor cost is reduced.

3. According to the invention, by using the trigger mechanism, the magnet can be pushed under the condition of sunshine irradiation, so that the hook is separated from the hook, the sun-shading mechanism starts to work, the sun-shading work can be completed without manpower, the convenience of the sun-shading mechanism is further increased, and the labor cost is reduced.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a schematic view of the connection of the bayonet and the first sleeve of the present invention;

FIG. 4 is a schematic view of the sunshade mechanism of the present invention;

FIG. 5 is a schematic view of the trigger mechanism of the present invention;

FIG. 6 is a flow chart of the operation of the sunshade mechanism of the present invention;

FIG. 7 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;

fig. 8 is an enlarged view of the invention at B in fig. 2.

In the figure: 1. a support; 101. a slot; 102. a transverse groove; 2. a support leg; 3. inserting a rod; 4. a first sleeve; 5. a card slot; 6. a connecting rod; 7. a first spring; 8. a second sleeve; 9. an elastic clamping block; 10. connecting blocks; 11. a base; 12. a level gauge; 13. a bolt; 14. a clamping block; 15. a ring block; 16. an annular groove; 17. a photovoltaic panel; 18. a slot position; 19. an iron core; 20. a coil; 21. a magnet; 22. a second spring; 23. a square hook; 24. a limiting rod; 25. a first connecting plate; 26. a third spring; 27. a first rotating block; 28. a connecting rod; 29. a baffle plate; 30. a rope belt; 31. a second connecting plate; 32. a hook; 33. a sun-shading cloth; 34. a third sleeve; 35. a limiting groove; 36. a guide bar; 37. a second turning block; 38. a torsion spring; 39. a limiting block; 40. a fourth spring; 41. a pressing block; 42. and a third connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, the invention provides a surveying and mapping level for mining subsidence area of coal mine, which comprises the following technical scheme:

a surveying and mapping level for a mining subsidence area of a coal mine area comprises a support 1, wherein the bottom of the support 1 is hinged with a plurality of supporting legs 2, the top of the support 1 is provided with a lifting mechanism, the lifting mechanism and the support 1 are jointly provided with an installation mechanism, and the top of the lifting mechanism is provided with a level 12;

lifting mechanism includes inserted bar 3 and first sleeve 4, a plurality of slots 101 have been seted up on the support 1, inserted bar 3 is inserted and is established in slot 101, first sleeve 4 is inserted and is established in inserted bar 3, draw-in groove 5 has been seted up on first sleeve 4, the outer wall fixedly connected with connecting rod 6 of inserted bar 3, the cover is equipped with first spring 7 on the connecting rod 6, it is equipped with second sleeve 8 to insert on the connecting rod 6, the both sides fixedly connected with elasticity fixture block 9 of second sleeve 8, fixed connection is respectively on inserted bar 3 and second sleeve 8 at the both ends of first spring 7, the one end fixedly connected with connecting block 10 of second sleeve 8, second sleeve 8 slides in draw-in groove 5, the common fixed connection base 11 in a plurality of first sleeve 4's top, the top fixedly connected with spirit level 12 of base 11.

Place and level landing leg 2 and spirit level 12 after the user, lift up spirit level 12 directly upwards, make the first sleeve 4 rebound that 11 bottoms of base are connected, at this moment elasticity fixture block 9 can slide in draw-in groove 5, and the card is in draw-in groove 5, adjust to suitable height until spirit level 12, the user stops lifting up, after the use, press down connecting block 10, make second sleeve 8 drive elasticity fixture block 9 to the inside removal of first sleeve 4, make elasticity fixture block 9 leave draw-in groove 5, at this moment press down spirit level 12, just can let spirit level 12 get back to the normal position, make the user after placing landing leg 2, can raise the height to needs with spirit level 12, let the user need not bend the waist survey and drawing, increase user's use comfort.

Referring to fig. 2, as an embodiment of the present invention, the mounting mechanism includes a latch 13 and a ring block 15, the latch 13 is mounted in a slot 101, two clamping blocks 14 are fixedly connected to the bottom of the inserted rod 3, the ring block 15 is arranged outside the clamping blocks 14, the slot 101 is provided with a ring groove 16, and the ring block 15 is clamped in the ring groove 16.

When the level 12 is installed, the inserted rod 3 is only required to be pressed downwards after being aligned with the slot 101, the middle positions of the two clamping blocks 14 at the bottom of the inserted rod 3 are extruded by the inserted pin 13, the clamping blocks 14 are outwards expanded, the annular blocks 15 on the clamping blocks 14 are clamped into the annular grooves 16 of the slot 101, and the clamping blocks 14 are firmly clamped in the slot 101, so that the level 12 is conveniently installed by a user.

As an embodiment of the present invention, referring to fig. 2, a transverse groove 102 communicated with the bottom end of each slot 101 is formed in the support 1, a third connecting plate 42 is arranged in the transverse groove 102, a plug 13 is fixedly connected to the top of the third connecting plate 42 and inserted into the bottom of the slot 101, a third sleeve 34 is fixedly connected to the bottom of the support 1, a limiting groove 35 is formed in each side of the third sleeve 34, a guide rod 36 is slidably inserted into the limiting groove 35, a second rotating block 37 is fixedly connected to each side of the guide rod 36, a torsion spring 38 is fixedly connected to each side of the second rotating block 37 and rotatably connected to a limiting block 39 through the torsion spring 38, the limiting block 39 is inserted into the limiting groove 35, a pressing block 41 is fixedly connected to the bottom end of the guide rod 36, a fourth spring 40 is fixedly connected between the bottom of the limiting groove 35 and the top of the pressing block 41, and the guide rod 36 is rotatably inserted into the bottom of the third connecting plate 42.

When the level 12 needs to be disassembled, the pressing block 41 is pressed, the limit block 39 is extruded by the limit groove 35 and rotates inwards, the limit block is retracted into the third sleeve 34, the pressing block 41 is rotated once, the limit block 39 is staggered from the position of the limit groove 35, the pressing block 41 is released, the pressing block 41 is lowered and rotated back to the original position by the aid of elastic force of the fourth spring 40, at this time, the guide rod 36 connected with the pressing block 41 drives the third connecting plate 42 to move downwards, the bolt 13 is separated from a gap between the two clamping blocks 14, when the level 12 needs to be assembled, the pressing block 41 is pressed upwards, the guide rod 36 drives the bolt 13 to jack upwards, the bolt 13 can be inserted between the two clamping blocks 14, and a user can take down the level 12 after pressing the pressing block 41.

Referring to fig. 1 and 4, as an embodiment of the present invention, a base 11 is provided with a sun protection mechanism, the sun protection mechanism includes a trigger mechanism and a baffle 29, two first connection plates 25 are sequentially connected to the top of the base 11, a sun protection cloth 33 is commonly connected to one side of the first connection plate 25 close to the outer side of the base 11, third springs 26 are connected between the base 11 and the first connection plates 25 and between the two first connection plates 25, first rotation blocks 27 are fixedly connected to the side walls of the two first connection plates 25 close to each other, connection rods 28 are rotatably connected to the first rotation blocks 27, the connection rods 28 in the same vertical direction are rotatably connected to each other, the baffle 29 is rotatably connected to the uppermost first connection plate 25, a second connection plate 31 is fixedly connected to the bottom end of the baffle 29, a plurality of straps 30 are connected to the top of the base 11, the plurality of straps 30 penetrate through the first connection plates 25 and the baffle 29 and are connected to the second connection plate 31, a hook 32 is fixedly connected to the bottom end of the baffle plate 29, and the hook 32 is hung on the trigger mechanism.

When sunlight directly reaches the level 12, the trigger mechanism is triggered to make the first connecting plate 25 rise upwards under the action of the elastic force of the third spring 26, so that the connecting rod 28 on the first connecting plate 25 also slowly rotates towards the vertical direction, and the sun-shading cloth 33 on the first connecting plate 25 is unfolded to shade the sunlight on two sides, the slack cord 30 then causes the cord 30 to tighten when the first link plate 25 rises to a certain height, while the spring force of the third spring 26 is still in effect, so that the rope belt 30 pulls the baffle 29 through the second connecting plate 31 to be slowly turned upwards, when the third spring 26 is fully extended, the string 30 also just pulls the baffle 29 to the vicinity of the horizontal angle, blocking the sunlight above, further, when the level 12 is used, another person does not need to hold an umbrella to shield sunlight, and the labor cost is reduced.

As an embodiment of the present invention, referring to fig. 5, the triggering mechanism includes a photovoltaic panel 17, the photovoltaic panel 17 is fixedly connected to one side of a base 11, a slot 18 is formed in the base 11, an iron core 19 is fixedly connected to the inside of the slot 18, a coil 20 is wound on the iron core 19, the coil 20 is electrically connected to the photovoltaic panel 17, two magnets 21 are slidably connected to the inside of the slot 18, one side of each of the two magnets 21 is fixedly connected to a second spring 22, one end of each of the second springs 22 is connected to a side wall of the slot 18, and two square hooks 23 are rotatably connected to the slot 18.

After sunlight irradiates on the photovoltaic panel 17, the coil 20 connected with the photovoltaic panel 17 is electrified, the iron core 19 wound by the coil 20 generates magnetism, the two magnets 21 are pushed by the magnetic force of the coil 20 to move towards two sides, the magnets 21 can collide with the square hooks 23, the square hooks 23 rotate, the hooks 32 on the baffle 29 are forced to be separated from the square hooks 23, then the third springs 26 start to act, when the sun protection mechanism is not needed, the first connecting plate 25 is pressed, the first connecting plate 25 moves downwards along the limiting rod 24, the baffle 29 is turned inwards, the hooks 32 are hung on the square hooks 23, the sun protection mechanism can automatically act when sunlight exists, and the convenience of the device is improved.

Referring to fig. 1, as an embodiment of the present invention, the sun protection mechanisms are symmetrically disposed on both sides of the level 12, and the trigger mechanism is disposed in the middle of the sun protection mechanism.

The sun-shading effect can be better played in the sun-shading mechanisms on the two sides, the leveling instrument 12 cannot be shielded, the leveling instrument 12 can normally work on the premise of receiving the sun-shading effect, and the sun-shading mechanism can effectively work through the trigger mechanism.

The working principle is as follows: place and level landing leg 2 and spirit level 12 after the user, lift up spirit level 12 directly upwards, make the first sleeve 4 rebound that 11 bottoms of base are connected, at this moment elasticity fixture block 9 can slide in draw-in groove 5, and the card is in draw-in groove 5, adjust to suitable height until spirit level 12, the user stops lifting up, after the use, press down connecting block 10, make second sleeve 8 drive elasticity fixture block 9 to the inside removal of first sleeve 4, make elasticity fixture block 9 leave draw-in groove 5, at this moment press down spirit level 12, just can let spirit level 12 get back to the normal position, make the user after placing landing leg 2, can raise the height to needs with spirit level 12, let the user need not bend the waist survey and drawing, increase user's use comfort.

When sunlight directly arrives at the level 12, the triggering mechanism can be triggered by the sunlight to enable the sun-shading mechanism to act, then the sun-shading effect is generated on the level 12, the damage of the sunlight to the level 12 is reduced, and unnecessary manpower is omitted.

The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a coal mining area exploitation subsidence area survey and drawing surveyor's level, includes support (1), the bottom of support (1) articulates there are a plurality of landing legs (2), its characterized in that: the top of the support (1) is provided with a lifting mechanism, the lifting mechanism and the support (1) are provided with an installation mechanism together, and the top of the lifting mechanism is provided with a level gauge (12);

the lifting mechanism comprises an insert rod (3) and a first sleeve (4), a plurality of slots (101) are formed in the support (1), the insert rod (3) is inserted into the slots (101), the first sleeve (4) is inserted into the insert rod (3), a clamping groove (5) is formed in the first sleeve (4), a connecting rod (6) is fixedly connected to the outer wall of the insert rod (3), a first spring (7) is sleeved on the connecting rod (6), a second sleeve (8) is inserted into the connecting rod (6), elastic clamping blocks (9) are fixedly connected to two sides of the second sleeve (8), two ends of the first spring (7) are respectively and fixedly connected to the insert rod (3) and the second sleeve (8), a connecting block (10) is fixedly connected to one end of the second sleeve (8), and the second sleeve (8) slides in the clamping groove (5), the tops of the first sleeves (4) are fixedly connected with a base (11) together, and the tops of the bases (11) are fixedly connected with a level gauge (12).

2. The coal mine area mining subsidence area surveying and mapping level of claim 1, wherein: installation mechanism includes bolt (13) and annular piece (15), install in slot (101) bolt (13), two clamp splice (14) of bottom fixedly connected with of inserted bar (3), annular piece (15) are established in the outside of clamp splice (14), ring channel (16) have been seted up on slot (101), annular piece (15) card is in ring channel (16).

3. The coal mine area mining subsidence area surveying and mapping level instrument of claim 2, wherein: a transverse groove (102) communicated with the bottom end of each slot (101) is formed in the support (1), the bolt (13) is fixedly connected to the top of the third connecting plate (42) and penetrates through the bottom of the slot (101), a third sleeve (34) is fixedly connected to the bottom of the support (1), limiting grooves (35) are formed in two sides of the third sleeve (34), a guide rod (36) is slidably inserted in each limiting groove (35), second rotating blocks (37) are fixedly connected to two sides of the guide rod (36), a torsion spring (38) is fixedly connected to each second rotating block (37) and is rotatably connected with a limiting block (39) through the torsion spring (38), the limiting block (39) is inserted in each limiting groove (35), a pressing block (41) is fixedly connected to the bottom end of the guide rod (36), and a fourth spring (40) is fixedly connected between the bottom of each limiting groove (35) and the top of the pressing block (41), the guide rod (36) is rotatably inserted at the bottom of the third connecting plate (42).

4. The coal mine area mining subsidence area surveying and mapping level of claim 1, wherein: the sun protection device is characterized in that a sun protection mechanism is arranged on the base (11), the sun protection mechanism comprises a trigger mechanism and a baffle (29), two first connecting plates (25) are sequentially connected to the top of the base (11), one sides, close to the outer side of the base (11), of the first connecting plates (25) are jointly connected with sun protection cloth (33), third springs (26) are connected between the base (11) and the first connecting plates (25) and between the two first connecting plates (25), two first connecting plates (25) are close to the side walls of each other and are fixedly connected with first rotating blocks (27), a plurality of first rotating blocks (27) are rotatably connected with connecting rods (28), the connecting rods (28) in the same vertical direction are rotatably connected with each other, the baffle (29) is rotatably connected to the uppermost first connecting plate (25), and the bottom end of the baffle (29) is fixedly connected with a second connecting plate (31), the top of base (11) is connected with a plurality of fag end (30), and is a plurality of fag end (30) all run through first connecting plate (25) and baffle (29) and connect on second connecting plate (31), the bottom fixedly connected with hook (32) of baffle (29), hook (32) articulate on trigger mechanism.

5. The coal mine area mining subsidence area surveying and mapping level instrument of claim 4, wherein: trigger mechanism includes photovoltaic board (17), photovoltaic board (17) fixed connection is in one side of base (11), trench (18) have been seted up in base (11), trench (18) internal fixation is connected with iron core (19), the winding has coil (20) on iron core (19), coil (20) and photovoltaic board (17) electric connection, there are two magnet (21), two in trench (18) sliding connection the equal fixedly connected with second spring (22) in one side of magnet (21), the one end and the lateral wall of trench (18) of second spring (22) are connected, trench (18) internal rotation is connected with two square couple (23).

6. The coal mine area mining subsidence area surveying and mapping level of claim 1, wherein: the sun-proof mechanisms are symmetrically arranged on two sides of the level (12), and the trigger mechanism is arranged in the middle of the sun-proof mechanism.