CN112945215B

CN112945215B - Total powerstation of anti-reflection convenient to adjust

Info

Publication number: CN112945215B
Application number: CN202110212384.3A
Authority: CN
Inventors: 邵成坤
Original assignee: Shandong Ruixin Geographic Information Engineering Co ltd
Current assignee: Shandong Ruixin Geographic Information Engineering Co ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2023-05-05
Anticipated expiration: 2041-02-25
Also published as: CN112945215A

Abstract

The invention relates to the technical field of total stations, in particular to a total station capable of preventing reflection and facilitating adjustment, which comprises an anti-reflection total station, wherein an outer column is arranged at the bottom of the anti-reflection total station, the anti-reflection total station is fixedly connected with the outer column, an extrusion column is arranged at the bottom of the outer column, the extrusion column is slidably connected with the inside of the outer column, a first round hole is arranged at one side of the extrusion column, the first round hole is rotatably connected with the outer column through a rotating shaft, a supporting leg is arranged at the bottom of the first round hole, the first round hole is rotatably connected with the supporting leg, a pull rod is arranged in the supporting leg, and the pull rod is slidably connected with the inside of the supporting leg.

Description

Total powerstation of anti-reflection convenient to adjust

Technical Field

The invention relates to the technical field of total stations, in particular to an anti-reflection total station convenient to adjust.

Background

The total station, namely the total station type electronic distance meter, is a high-technology measuring instrument integrating light, machine and electricity, and is a surveying instrument system integrating the functions of measuring horizontal angle, vertical angle, distance (inclined distance and flat distance) and height difference. Compared with an optical theodolite, the electronic theodolite changes the optical dial into a photoelectric scanning dial, and replaces manual optical micrometer reading with automatic recording and displaying reading, so that the angle measurement operation is simplified, and reading errors can be avoided. The total station is called because it can complete all the measurement work on the station by setting the instrument at one time. The method is widely applied to the fields of precision engineering measurement or deformation monitoring such as ground large-scale building and underground tunnel construction. The total station is different from the optical theodolite in a dial reading and displaying system, and the horizontal dial and the vertical dial of the optical theodolite and a reading device thereof respectively adopt (a coding dial) or two identical grating dials and reading sensors for angle measurement. The angular accuracy can be classified into several classes of 0.5 ", 1", 2 ", 3", 5 ", 7", etc. .

But the fixing is troublesome, and each bracket needs to be adjusted, so that the level is ensured, and the bracket is easy to drop, so that the total station is damaged.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides the total station which is capable of preventing reflection and convenient to adjust.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the total station convenient to adjust of anti-reflection of light is designed, including anti-reflection total station, the outer column is installed to the bottom of anti-reflection total station, anti-reflection total station and outer column fixed connection, the extrusion post is installed to the bottom of outer column, extrusion post sliding connection is in the inside of outer column, first round hole is installed to one side of extrusion post, first round hole is connected through the pivot rotation with the outer column, the supporting leg is installed to the bottom of first round hole, first round hole is connected with the supporting leg rotation, the internally mounted of supporting leg has the pull rod, pull rod sliding connection is in the inside of supporting leg, first round hole is installed to the bottom that removes the push, remove push and first round hole be integrated with the design, first guard plate is installed to one side of anti-reflection total station, first and anti-reflection total station fixed connection, the utility model discloses a novel energy-saving protective device for the automobile, including first guard plate, second guard plate, gear, first rotary rod, gear, first rotary rod and outer column rotation connection, the rack is installed to one side of interior pole, rack and interior pole fixed connection, fourth fixture block is installed to top one side of rack, the rack is in integrated with fourth fixture block design, the gear is installed to one side of rack, the inside of outer column is connected in the rotation of gear, the internally mounted of gear has first rotary rod, gear and first rotary rod welding, first rotary rod is connected with the outer column rotation, the surface mounting of first rotary rod has the chain, the first rotary rod is sleeved with the chain, a second rotary rod is installed between the movable push rod and the outer column, the second rotary rod is connected with the outer column in a rotary mode, one side, close to the second rotary rod, of the chain is sleeved with the second rotary rod, a round hole is formed in the inner portion of the inner rod, the inner rod and the round hole are integrally designed, an extrusion block is arranged in the inner portion of the outer column in a sliding mode, a moving block is arranged in the inner portion of the outer column, and the outer column and the moving block are integrally designed.

Preferably, the piston is installed to one side of the buffer column, the buffer column is fixed through hot melt adhesive with the piston, first fixture block is installed at the top of the buffer column, the buffer column is integrated with first fixture block and is designed, the internally mounted of second guard plate has the restriction pole, restriction pole sliding connection is in the inside of second guard plate, the axial cross-section shape at the top of restriction pole is isosceles triangle.

Preferably, the internally mounted of second guard plate has the limiting plate, limiting plate sliding connection is in the inside of second guard plate, the connecting rod is installed to the one end that the buffering post was kept away from to the limiting plate, limiting plate and connecting rod fixed connection, the extension rod is installed to one side that the limiting plate was kept away from to the connecting rod, the connecting rod is integrated with the extension rod and designs, the shaft cross section diameter of connecting rod is less than the shaft cross section diameter of extension rod.

Preferably, the internally mounted of second guard plate has the second fixture block, the second fixture block is integrated with the second guard plate and is designed, the second draw-in groove is installed to the inside of stretching out the pole and is corresponded the position of second fixture block, second draw-in groove and second fixture block assorted, the second draw-in groove is integrated with stretching out the pole and is designed, second fixture block sliding connection is in the inside of second draw-in groove, the internally mounted of second draw-in groove has first spring, the one end that first spring is close to the second fixture block welds with the second fixture block, the one end that second fixture block was kept away from to first spring welds with stretching out the pole.

Preferably, the internally mounted of supporting leg has the third fixture block, the supporting leg is integrated into one piece design with the third fixture block, the third draw-in groove is installed to the inside of pull rod corresponding to the position of third fixture block, third draw-in groove and third fixture block assorted, the third draw-in groove is integrated into one piece design with the pull rod, third fixture block sliding connection is in the inside of third draw-in groove, the internally mounted of third draw-in groove has the second spring, the second spring is close to the one end and the third fixture block welding of third fixture block, the one end and the pull rod welding of third fixture block are kept away from to the second spring.

Preferably, the position of the extrusion block corresponding to the inside of the outer column is provided with an extending groove, the extending groove and the outer column are integrally designed, the top of the extending groove is provided with a triangular groove, the extending groove and the triangular groove are integrally designed, and the shaft section of the triangular groove is isosceles triangle.

Preferably, the position of the inside of the outer column corresponding to the fourth clamping block is provided with a fourth clamping groove, the fourth clamping groove is matched with the fourth clamping block, the fourth clamping groove and the outer column are integrally designed, the fourth clamping block is slidably connected in the inside of the fourth clamping groove, the inside of the fourth clamping groove is provided with a third spring, one end, close to the fourth clamping block, of the third spring is welded with the fourth clamping block, and one end, far away from the fourth clamping block, of the third spring is welded with the outer column.

Preferably, a fourth spring is installed on one side of the moving block, the moving block is welded with the fourth spring, a fifth spring is installed in the extrusion block, the fifth spring is connected in the extrusion block in a sliding mode, an ejecting block is installed on one side of the fifth spring, and the ejecting block is welded with the fifth spring.

The total station with reflection prevention and convenient adjustment provided by the invention has the beneficial effects that: when the device is toppled, the anti-reflection total station is toppled towards the direction of the anti-reflection total station due to the larger weight of one side of the anti-reflection total station, the second protection plate is contacted with the ground, the buffer column moves in the second protection plate, the piston extrudes the second protection plate, so that the internal atmosphere is increased, the movement of the buffer column is more difficult, the first clamping block extrudes the limiting rod in the moving process, so that the buffer column is difficult to move, the buffering effect is better, when the impact is larger, the piston extrudes the limiting plate, the limiting plate moves with the connecting rod and the extending rod, so that the extending rod moves, the connecting rod reaches the inner side wall of the second protection plate, the gas in the second protection plate reaches the outside through the second clamping groove, so that the gas is impacted, and the protection is performed again, the invention has reasonable design, ingenious structure, rapid fixation through mutual matching among structures, more convenient transportation, protection of the device when falling, and good market competitiveness, is worth recommending.

Drawings

FIG. 1 is a schematic diagram of a total station with reflection prevention and convenient adjustment;

FIG. 2 is a side view of an anti-reflection total station convenient to adjust and capable of preventing reflection;

FIG. 3 is a cross-sectional view of a second anti-reflection convenient-to-adjust total station provided by the invention;

FIG. 4 is a partial cross-sectional view of a second anti-reflection convenient-to-adjust total station guard plate according to the present invention;

FIG. 5 is a top cross-sectional view of an anti-reflection easy-to-adjust total station support leg according to the present invention;

FIG. 6 is a cross-sectional view of an anti-reflection convenient-to-adjust total station outer column provided by the invention;

fig. 7 is a cross-sectional view of an anti-reflection convenient-to-adjust total station extrusion block provided by the invention.

In the figure: 1. an anti-reflection total station; 2. an outer column; 3. moving and pushing; 4. an extrusion column; 5. a first round hole; 6. support legs; 7. a pull rod; 8. a first protection plate; 9. a second protection plate; 10. a buffer column; 11. a piston; 12. a first clamping block; 13. a first clamping groove; 14. a restraining bar; 15. an extension rod; 16. a connecting rod; 17. a second clamping groove; 18. a first spring; 19. a second clamping block; 20. a limiting plate; 21. a third clamping block; 22. a third clamping groove; 23. a second spring; 24. extruding a block; 25. a round hole; 26. an inner rod; 27. a third spring; 28. a fourth clamping groove; 29. a fourth clamping block; 30. a gear; 31. a first rotating lever; 32. a chain; 33. a second rotating lever; 34. a toothed plate; 35. extend into the groove; 36. triangular grooves; 37. a moving block; 38. a fourth spring; 39. ejecting the block; 40. and a fifth spring.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Referring to fig. 1-7, an anti-reflection total station convenient to adjust comprises an anti-reflection total station 1, and is characterized in that an outer column 2 is installed at the bottom of the anti-reflection total station 1, an extending groove 35 is installed in the position, corresponding to a squeezing block 24, of the inner portion of the outer column 2, the extending groove 35 and the outer column 2 are integrally designed, a triangular groove 36 is installed at the top of the extending groove 35, the extending groove 35 and the triangular groove 36 are integrally designed, the shaft section of the triangular groove 36 is isosceles triangle, and stability of the device is improved.

The inside of outer column 2 corresponds the position of fourth fixture block 29 and installs fourth draw-in groove 28, fourth draw-in groove 28 and fourth fixture block 29 assorted, fourth draw-in groove 28 is integrated into one piece design with outer column 2, fourth fixture block 29 sliding connection is in the inside of fourth draw-in groove 28, the internally mounted of fourth draw-in groove 28 has third spring 27, third spring 27 is close to fourth fixture block 29's one end and fourth fixture block 29 welding, third spring 27 is kept away from fourth fixture block 29's one end and outer column 2 welding, the protection effect is better.

The anti-total station 1 and outer column 2 fixed connection, extrusion post 4 is installed to the bottom of outer column 2, extrusion post 4 sliding connection is in the inside of outer column 2, first round hole 5 is installed to one side of extrusion post 4, first round hole 5 is rotationally connected through the pivot with outer column 2, supporting leg 6 is installed to the bottom of first round hole 5, the internally mounted of supporting leg 6 has third fixture block 21, supporting leg 6 and third fixture block 21 are in the integral type design, third draw-in groove 22 is installed to the position that the inside of pull rod 7 corresponds third fixture block 21, third draw-in groove 22 and third fixture block 21 phase-match, third draw-in groove 22 and pull rod 7 are in the integral type design, third fixture block 21 sliding connection is in the inside of third draw-in groove 22, the internally mounted of third draw-in groove 22 has second spring 23, the one end that second spring 23 is close to third fixture block 21 welds with third fixture block 21, the one end that third fixture block 21 was kept away from to second spring 23 welds with pull rod 7, it is more convenient to fix.

The utility model provides a first round hole 5 rotates with supporting leg 6 to be connected, the internally mounted of supporting leg 6 has pull rod 7, pull rod 7 sliding connection is in the inside of supporting leg 6, remove the bottom of pushing away 3 and install first round hole 5, remove and push away 3 and first round hole 5 and be integrated into one piece design, prevent that the first guard plate 8 is installed to one side of anti-total station 1, first guard plate 8 and anti-total station 1 fixed connection, second guard plate 9 is installed to one side of first guard plate 8, the internally mounted of second guard plate 9 has limiting plate 20, limiting plate 20 sliding connection is in the inside of second guard plate 9, limiting plate 20 is kept away from the one end of buffer post 10 and is installed connecting rod 16, limiting plate 20 and connecting rod 16 fixed connection, connecting rod 16 is kept away from one side of limiting plate 20 and is installed and stretch out pole 15, connecting rod 16 is integrated into one piece design with stretching out pole 15, the axle cross-section diameter of connecting rod 16 is less than the axle cross-section diameter of stretching out pole 15, the convenience is buffered.

The internally mounted of second guard plate 9 has second fixture block 19, second fixture block 19 is integrated into one piece design with second guard plate 9, second draw-in groove 17 is installed to the inside of stretching out the pole 15 and correspond the position of second fixture block 19, second draw-in groove 17 and second fixture block 19 assorted, second draw-in groove 17 is integrated into one piece design with stretching out the pole 15, second fixture block 19 sliding connection is in the inside of second draw-in groove 17, the internally mounted of second draw-in groove 17 has first spring 18, the one end that first spring 18 is close to second fixture block 19 welds with second fixture block 19, the one end that second fixture block 19 was kept away from to first spring 18 welds with stretching out the pole 15, protect the device.

Install the buffer post 10 between first guard plate 8 and the second guard plate 9, piston 11 is installed to one side of buffer post 10, and buffer post 10 and piston 11 are fixed through the hot melt adhesive, and first fixture block 12 is installed at the top of buffer post 10, and buffer post 10 is integrated with first fixture block 12 and designs, and the internally mounted of second guard plate 9 has restriction pole 14, and restriction pole 14 sliding connection is in the inside of second guard plate 9, and the axial cross-section shape at the top of restriction pole 14 is isosceles triangle, convenient buffering.

One end of the buffer post 10 close to the first protection plate 8 is welded with the first protection plate 8, one end of the buffer post 10 close to the second protection plate 9 is slidably connected to the inside of the second protection plate 9, an inner rod 26 is mounted at the top of the extrusion post 4, the inner rod 26 is slidably connected to the inside of the outer post 2, a toothed plate 34 is mounted at one side of the inner rod 26, the toothed plate 34 is fixedly connected with the inner rod 26, a fourth clamping block 29 is mounted at one side of the top of the toothed plate 34, the toothed plate 34 and the fourth clamping block 29 are integrally designed, a gear 30 is mounted at one side of the toothed plate 34, the gear 30 is rotatably connected to the inside of the outer post 2, a first rotary rod 31 is mounted inside the gear 30, the gear 30 is welded with the first rotary rod 31, a chain 32 is mounted on the surface of the first rotary rod 31, the first rotary rod 31 is sleeved with the chain 32, a second rotating rod 33 is installed between the movable push 3 and the outer column 2, the second rotating rod 33 is rotationally connected with the outer column 2, one side of the chain 32 close to the second rotating rod 33 is sleeved with the second rotating rod 33, a round hole 25 is formed in the inner part of the inner rod 26, the inner rod 26 and the round hole 25 are integrally designed, an extrusion block 24 is installed in the outer column 2, the extrusion block 24 is slidingly connected to the inner part of the outer column 2, a movable block 37 is installed in the outer column 2, a fourth spring 38 is installed on one side of the movable block 37, the movable block 37 is welded with the fourth spring 38, a fifth spring 40 is installed in the inner part of the extrusion block 24, an ejection block 39 is installed on one side of the fifth spring 40, and the ejection block 39 is welded with the fifth spring 40, so that fixation is firmer.

The outer column 2 and the moving block 37 are of an integral design.

Working principle: when the device is toppled, as the weight of one side of the anti-reflection total station 1 close to the buffer post 10 is relatively large, the anti-reflection total station 1 is toppled towards the anti-reflection total station 1, the second protection plate 9 is contacted with the ground, the buffer post 10 moves in the second protection plate 9, the piston 11 presses the second protection plate 9, the internal atmosphere pressure is increased, the movement of the buffer post 10 is more difficult, the first clamping block 12 presses the limiting rod 14 in the moving process, the buffer post 10 is difficult to move, the buffering effect is better, when the impact is large, the piston 11 presses the limiting plate 20, the limiting plate 20 moves with the connecting rod 16 and the extending rod 15, the extending rod 15 moves, the connecting rod 16 reaches the inner side wall of the second protection plate 9, the gas in the second protection plate 9 reaches the outside through the second clamping groove 17, so that the gas is impacted and protected again, the supporting leg 6 is rotated, the pull rod 7 is clamped into the first round hole 5, the supporting leg 6 reaches the inside of the moving push 3 or the sharp position of the supporting leg 6 is downwards, the change can be carried out according to the terrain, the extruding column 4 is extruded to drive the inner rod 26 to move the toothed plate 34, the gear 30 is driven to move with the first rotary rod 31, the first rotary rod 31 is meshed with the chain 32, the chain 32 is driven to rotate with the second rotary rod 33, the moving push 3 is driven to rotate, the moving push 3 supports the device, the extruding block 24 passes through the round hole 25 and is clamped into the inside of the extending groove 35 through the extruding block 24, the inner rod 26 is fixed, the invention has reasonable design and ingenious structure, through mutually supporting between the structure, can fix fast, and the transportation is more convenient, when dropping, protects the device, has good market competition, is worth recommending.

The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the novel concept of the present invention, can be equivalently replaced or changed within the scope of the present invention.

Claims

1. The utility model provides a total powerstation that anti-reflection of light was convenient for adjust, includes anti-shape total powerstation (1), removes and pushes away (3), a serial communication port, outer column (2) is installed to the bottom of anti-shape total powerstation (1), anti-shape total powerstation (1) and outer column (2) fixed connection, extrusion post (4) are installed to the bottom of outer column (2), extrusion post (4) sliding connection is in the inside of outer column (2), remove and push away (3) are all installed to the both sides of extrusion post (4), remove and push away (3) and outer column (2) and rotate through the pivot and be connected, remove the bottom that pushes away (3) and install supporting leg (6), remove and push away (3) and supporting leg (6) rotate and be connected, internally mounted of supporting leg (6) has pull rod (7), first round hole (5) are installed to the bottom of removing and pushing away (3), remove and push away (5) and be first round hole (8) and first one side (8) and first protection board (8) are connected to form one side (8) safety protection board, a buffer column (10) is arranged between the first protection plate (8) and the second protection plate (9), one end of the buffer column (10) close to the first protection plate (8) is welded with the first protection plate (8), one end of the buffer column (10) close to the second protection plate (9) is slidingly connected with the inside of the second protection plate (9), an inner rod (26) is arranged at the top of the extrusion column (4), the inner rod (26) is slidingly connected with the inside of the outer column (2), a toothed plate (34) is arranged at one side of the inner rod (26), a fourth clamping block (29) is arranged at one side of the top of the toothed plate (34), a gear (30) is arranged at one side of the toothed plate (34), the gear (30) is rotationally connected with the inside of the outer column (2), a first rotating rod (31) is arranged at the inside of the gear (30), a rotating rod (31) is fixedly connected with the first rotating rod (31) in a sleeved mode, a rotating rod (32) is connected with the first rotating rod (31) in a sleeved mode, a second rotating rod (33) is arranged between the movable push rod (3) and the outer column (2), the second rotating rod (33) is rotationally connected with the outer column (2), one side, close to the second rotating rod (33), of the chain (32) is sleeved with the second rotating rod (33), a round hole (25) is formed in the inner part of the inner rod (26), the inner rod (26) and the round hole (25) are integrally designed, an extrusion block (24) is arranged in the outer column (2), the extrusion block (24) is slidably connected to the inner part of the outer column (2), a moving block (37) is arranged in the inner part of the outer column (2), and the outer column (2) and the moving block (37) are integrally designed;

a piston (11) is arranged on one side of the buffer column (10), the buffer column (10) and the piston (11) are fixed through hot melt adhesive, a first clamping block (12) is arranged at the top of the buffer column (10), the buffer column (10) and the first clamping block (12) are integrally designed, a limiting rod (14) is arranged in the second protection plate (9), the limiting rod (14) is slidably connected to the inside of the second protection plate (9), and the axial section shape of the top of the limiting rod (14) is isosceles triangle;

the inside of the second protection plate (9) is provided with a limiting plate (20), the limiting plate (20) is connected inside the second protection plate (9) in a sliding mode, one end, far away from the buffer column (10), of the limiting plate (20) is provided with a connecting rod (16), the limiting plate (20) is fixedly connected with the connecting rod (16), one side, far away from the limiting plate (20), of the connecting rod (16) is provided with an extending rod (15), the connecting rod (16) and the extending rod (15) are integrally designed, and the diameter of the shaft section of the connecting rod (16) is smaller than that of the extending rod (15);

the inside of second guard plate (9) is installed second fixture block (19), second fixture block (19) are integrated with second guard plate (9), second draw-in groove (17) are installed to the inside of stretching out pole (15) corresponding to the position of second fixture block (19), second draw-in groove (17) and second fixture block (19) phase-match, second draw-in groove (17) are integrated with stretching out pole (15), second fixture block (19) sliding connection is in the inside of second draw-in groove (17), the internally mounted of second draw-in groove (17) has first spring (18), the one end that first spring (18) is close to second fixture block (19) welds with second fixture block (19), the one end that second fixture block (19) were kept away from to first spring (18) welds with stretching out pole (15);

the novel pull rod is characterized in that a third clamping block (21) is arranged in the supporting leg (6), the supporting leg (6) and the third clamping block (21) are integrally designed, a third clamping groove (22) is arranged in the pull rod (7) at a position corresponding to the third clamping block (21), the third clamping groove (22) is matched with the third clamping block (21), the third clamping groove (22) and the pull rod (7) are integrally designed, the third clamping block (21) is slidably connected to the inner part of the third clamping groove (22), a second spring (23) is arranged in the third clamping groove (22), one end, close to the third clamping block (21), of the second spring (23) is welded with the third clamping block (21), and one end, far away from the third clamping block (21), of the second spring (23) is welded with the pull rod (7);

the inner part of the outer column (2) is provided with an extending groove (35) corresponding to the extrusion block (24), the extending groove (35) and the outer column (2) are integrally designed, the top of the extending groove (35) is provided with a triangular groove (36), the extending groove (35) and the triangular groove (36) are integrally designed, and the shaft section of the triangular groove (36) is isosceles triangle;

the novel clamping device is characterized in that a fourth clamping groove (28) is formed in the outer column (2) at a position corresponding to a fourth clamping block (29), the fourth clamping groove (28) is matched with the fourth clamping block (29), the fourth clamping groove (28) and the outer column (2) are integrally designed, the fourth clamping block (29) is slidably connected to the inside of the fourth clamping groove (28), a third spring (27) is arranged in the fourth clamping groove (28), one end, close to the fourth clamping block (29), of the third spring (27) is welded with the fourth clamping block (29), and one end, far away from the fourth clamping block (29), of the third spring (27) is welded with the outer column (2);

a fourth spring (38) is arranged on one side of the moving block (37), the moving block (37) is welded with the fourth spring (38), a fifth spring (40) is arranged in the extrusion block (24), the fifth spring (40) is connected in the extrusion block (24) in a sliding mode, an ejecting block (39) is arranged on one side of the fifth spring (40), and the ejecting block (39) is welded with the fifth spring (40);

when the device is toppled, as the weight of one side of the anti-reflection total station (1) close to the buffer column (10) is relatively large, the anti-reflection total station (1) is toppled towards the direction of the anti-reflection total station (1), the second protection plate (9) is contacted with the ground, the buffer column (10) moves in the second protection plate (9), the piston (11) extrudes the second protection plate (9), the atmospheric pressure in the second protection plate is increased, the buffer column (10) moves more difficultly, the first clamping block (12) extrudes the limiting rod (14) in the moving process, the buffer column (10) moves difficultly, the buffering effect is better, when the impact is large, the piston (11) extrudes the limiting plate (20), the limiting plate (20) moves with the extending rod (15), the extending rod (15) moves, the connecting rod (16) reaches the inner side wall of the second protection plate (9), the gas in the second protection plate (9) passes through the second clamping groove (17), the gas in the second protection plate (9) extrudes the second clamping groove (6), the gas in the inner part of the second protection plate (9) moves to the inner part of the supporting leg (6) again, the supporting leg (6) moves to the sharp supporting position (6) according to the impact, the supporting leg (6) can move downwards, the supporting leg (6) can move to the sharp supporting position (6) is reached, and the supporting leg (6) can move downwards, the supporting leg (6) can rotate, through extrusion post (4), make extrusion post (4) take interior pole (26) to make pinion rack (34) remove, thereby make gear (30) remove with first rotary rod (31), and first rotary rod (31) and chain (32) meshing, thereby make chain (32) take second rotary rod (33) to rotate, thereby make removal push (3) support the device, through extrusion briquetting (24), make extrusion briquetting (24) pass round hole (25), the card is gone into the inside of stretching into recess (35).