Surveying and mapping pole for topographic surveying and mapping of municipal engineering

Abstract

The invention relates to the technical field of surveying and mapping marker posts, and discloses a municipal engineering topographic surveying and mapping marker post which comprises an outer sleeve, an inner sleeve is slidably connected to the inner wall of the outer sleeve, a sliding frame is fixedly connected to the bottom of the inner sleeve, and three supporting legs are fixedly connected to the outer wall of the inner sleeve. A user carries the outer sleeve to a to-be-measured position and supports the outer sleeve through contact between the supporting legs and the ground, and when the height of the inner sleeve needs to be adjusted, the user holds the outer sleeve with two hands, places the heel on the supporting plate and places the tiptoe on the rubber expansion block and then treads the rubber expansion block to enable the pedal to rotate, so that the height of the inner sleeve is adjusted. The side, treaded by the foot, of the pedal descends, the other side of the pedal ascends, the ascending side can jack up the sliding frame, and therefore the inner sleeve ascends, the height of the inner sleeve is adjusted, rapid adjustment of the height of the inner sleeve is achieved, tedious operation steps are reduced, operation is more convenient and rapid, and the height of the inner sleeve can be accurately adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of surveying and mapping benchmark equipment, in particular to a surveying and mapping benchmark for municipal engineering topography surveying and mapping. Background Art

[0002] Surveying and mapping refers to the measurement, collection and mapping of the shape, size, spatial position and attributes of natural geographical features or artificial facilities on the surface. The benchmark is a surveying and mapping tool. In geographic surveying, a level and a benchmark are often used together for measurement.

[0003] In order to adapt to different measurement requirements, the height of the benchmark often needs to be adjusted. The benchmark usually has a slide rail and a slider to facilitate manual adjustment of the benchmark height. However, manual adjustment of the benchmark usually involves multiple steps, such as loosening the locking device, adjusting the height, and locking it again. It usually takes a lot of time and effort, affecting measurement efficiency. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a surveying pole for topographic surveying in municipal engineering, comprising an outer sleeve, an inner sleeve slidably connected to the inner wall of the outer sleeve, a sliding frame fixedly connected to the bottom of the inner sleeve, three support legs fixedly connected to the outer wall of the inner sleeve, a pedal rotatably connected to the inner wall of the outer sleeve, a rubber expansion block fixedly connected to the top of the pedal, and a support plate fixedly connected to the bottom of the outer sleeve; The jacking mechanism includes a fixed sleeve 1 fixedly connected to the inner wall of the outer sleeve, a piston ring 1 is slidably connected to the inner wall of the fixed sleeve 1, a hydraulic oil 1 is provided on the inner wall of the fixed sleeve 1, the bottom of the piston ring 1 is fixedly connected to the top of the sliding frame, a fixed sleeve 2 is fixedly connected to the inner wall of the outer sleeve, a piston ring 2 is slidably connected to the inner wall of the fixed sleeve 2, a hydraulic oil 2 is provided on the bottom of the piston ring 2, a pressing assembly is provided on the outer wall of the outer sleeve, and a blocking mechanism is provided on the inner wall of the outer sleeve; The blocking mechanism includes an oil pipe fixedly connected to the inner wall of the outer sleeve, a sliding sleeve fixedly connected to the inner wall of the oil pipe, a conical ring fixedly connected to the inner wall of the oil pipe, a spring ball rod slidably connected to the inner wall of the sliding sleeve, and hydraulic oil is provided on the inner wall of the oil pipe; Among them, a push rod is slidably connected to the inner wall of the fixed sleeve, and the outer wall of the push rod is slidably connected to the inner wall of the sliding frame. An air jet assembly is provided on the top of the support plate. The user carries the outer sleeve to the position to be measured, and supports the outer sleeve by contacting the ground with the support legs. When the height of the inner sleeve needs to be adjusted, the user supports the outer sleeve with both hands, places the heel on the support plate, and the toe on the rubber expansion block, and then steps on the rubber expansion block to rotate the pedal, so that the side of the pedal stepped on by the foot drops and the other side rises. The raised side The sliding frame will be lifted up, thereby allowing the inner sleeve to rise and adjust the height of the inner sleeve. When the sliding frame rises, it will also drive the piston ring to rise. The piston ring will squeeze the hydraulic oil in the fixed sleeve. The squeezed hydraulic oil will push the spring ball rod to move, separating the spring ball rod from the tapered ring, allowing the spring ball rod to accumulate rebound force. Since the tapered ring is conical in shape, when the spring ball rod is separated from the tapered ring, a gap will leak between the two. The hydraulic oil will enter the oil pipe through the gap, mix with the hydraulic oil in the oil pipe, and enter the piston ring through the oil pipe. The bottom of the second piston ring is mixed with the hydraulic oil 2, thereby lifting the piston ring 2 and making the piston ring 2 contact with the bottom of the pedal. When the height adjustment of the inner sleeve is completed, release the pedal. At this time, the force squeezing the hydraulic oil 1 disappears, and the squeezing force on the spring ball rod also disappears. The rebound force of the spring ball rod will be released, allowing the spring ball rod to contact the conical surface of the conical ring again, thereby blocking the conical ring. At this time, the top of the piston ring 2 contacts the bottom of the pedal, and the bottom of the piston ring 2 is supported by the hydraulic oil 2, thereby avoiding support from the pedal and preventing the inner sleeve from falling. When the inner sleeve needs to be lowered, the push rod is manually pushed toward the spring ball rod, and the push rod will push the spring ball rod and the tapered ring to separate, allowing the fixed sleeve 2 to be connected with the fixed sleeve 1. The inner sleeve will be affected by its own weight and will drop, allowing the sliding frame to squeeze the pedal, and the pedal will squeeze the piston ring 2, so that the hydraulic oil 2 in the fixed sleeve 2 can pass through the oil pipe and enter the fixed sleeve 1, completing the lowering of the inner sleeve, thereby realizing the rapid adjustment of the height of the inner sleeve, reducing tedious operating steps, making the operation more convenient, and being able to accurately adjust the height of the inner sleeve.

[0005] Preferably, the pressing assembly includes a connecting frame fixedly connected to the outer wall of the outer sleeve, a sliding plate slidably connected to the inner wall of the connecting frame, the bottom of the sliding plate is fixedly connected to the top of the sliding frame, and a gas hose is connected through the inner wall of the connecting frame; Among them, the outer wall of the gas hose is slidably connected to the inner wall of the sliding plate, and the outer wall of the gas hose is through-connected to the inner wall of the rubber expansion block. When the sliding frame rises, it will also drive the sliding plate to rise. The sliding plate will squeeze the gas in the connecting frame, and the squeezed gas will enter the gas hose and enter the rubber expansion block through the gas hose, allowing the rubber expansion block to expand and better fit the soles of the users' shoes.

[0006] Preferably, the pressing assembly further comprises a fixing frame fixedly connected to the bottom of the connecting frame, the outer wall of the fixing frame is rotatably connected to a rotating frame, and the inner wall of the rotating frame is slidably connected to the bottom of the sliding frame; Wherein, a spring plate is provided at the bottom of the connection frame, and the top of the spring plate is slidably connected to the inner wall of the rotating frame.

[0007] Preferably, the pressing assembly also includes two fixed rods fixedly connected to the bottom of the connecting frame, the inner walls of the spring plates are slidably connected to the outer walls of the two fixed rods, and the bottom of the spring plates is fixedly connected to a rubber pressing plate. At the same time, when the sliding frame rises, it will also drive the rotating frame to rise, allowing the rotating frame to rotate and tilt the rotating frame, pushing the spring plate down, driving the rubber pressing plate down, and contacting the toe of the user's shoe. The rubber expansion block expands and cooperates with the rubber pressing plate to increase the stability between the shoe upper and the rubber expansion block.

[0008] Preferably, the jet assembly includes a fixed frame 1 fixedly connected to the top of the support plate, five air inlet holes are opened on the inner wall of the fixed frame 1, an extrusion plate 1 is slidably connected to the inner wall of the fixed frame 1, and a connecting rod is rotatably connected to the side wall of the extrusion plate 1; Among them, a connecting rod 1 is provided on the outer wall of the outer sleeve, and the side wall of the connecting rod 1 is fixedly connected to the side wall of the spring plate, and the side wall of the connecting rod 1 is rotatably connected to the inner wall of the connecting rod. When the spring plate descends, it will drive the connecting rod 1 to descend, and the connecting rod 1 will rotate the connecting rod, and the connecting rod will push the extrusion plate 1 to move toward the pedal. When the extrusion plate 1 covers the air inlet hole, the extrusion plate 1 will squeeze the gas in the fixed frame 1.

[0009] Preferably, the jet assembly further comprises an inclined block fixedly connected to the top of the fixed frame 1, an air inlet pipe is connected through the inner wall of the fixed frame 1, a spring blocking plate is rotatably connected to the inner wall of the inclined block, and a connecting rod 2 is fixedly connected to the side wall of the extrusion plate 1; Among them, the outer wall of the intake pipe is connected with the inner wall of the inclined block, and the gas will enter the inclined block through the intake pipe. At this time, the squeezed gas will be blocked by the spring blocking plate, so the gas will generate high pressure. During the movement of the squeezing plate 1, it will also drive the connecting rod 2 to move until the connecting rod 2 contacts the spring blocking plate, pushing the spring blocking plate to rotate, so that the spring blocking plate accumulates rebound force, and a gap leaks between the spring blocking plate and the inclined block.

[0010] Preferably, the jet assembly further comprises a second fixing frame fixedly connected to the top of the support plate, an inner wall of the second fixing frame is slidably connected to a second extrusion plate, and a side wall of the second extrusion plate is fixedly connected to a third connecting rod; Among them, the side of the connecting rod three away from the extrusion plate two is fixedly connected to the side wall of the extrusion plate one, and a jet pipe is connected through the inner wall of the fixed frame two. When the extrusion plate one moves, it will also drive the connecting rod three to move. The connecting rod three will push the extrusion plate two to move, and the extrusion plate two will squeeze the gas in the fixed frame two. The squeezed gas will enter the jet pipe and be sprayed towards the feet of the user through the jet pipe.

[0011] The present invention has the following beneficial effects: (1) When the present invention is used, the user carries the outer sleeve to the position to be measured, and supports the outer sleeve by contacting the support legs with the ground. When the height of the inner sleeve needs to be adjusted, the user supports the outer sleeve with both hands, places the heels on the support plate, and places the toes on the rubber expansion block, and then steps on the rubber expansion block to rotate the pedal, so that the side of the pedal stepped on by the foot descends and the other side rises. The raised side will lift the sliding frame, thereby raising the inner sleeve. The height of the inner sleeve is adjusted. When the sliding frame rises, , it will also drive piston ring 1 to rise, piston ring 1 will squeeze hydraulic oil 1 in fixed sleeve 1, and the squeezed hydraulic oil 1 will push the spring ball rod to move, so that the spring ball rod is separated from the tapered ring, allowing the spring ball rod to accumulate rebound force. Due to the conical ring's conical shape, when the spring ball rod is separated from the tapered ring, a gap will leak between the two, and hydraulic oil 1 will enter the oil pipe through the gap, mix with hydraulic oil 3 in the oil pipe, enter the bottom of piston ring 2 through the oil pipe, and mix with hydraulic oil 2, thereby lifting piston ring 2. , let the piston ring 2 contact with the bottom of the pedal. When the height adjustment of the inner sleeve is completed, release the pedal. At this time, the force of squeezing the hydraulic oil 1 disappears, and the squeezing force on the spring ball rod also disappears. The rebound force of the spring ball rod will be released, allowing the spring ball rod to contact the conical surface of the tapered ring again, thereby blocking the tapered ring. At this time, the top of the piston ring 2 contacts the bottom of the pedal, and the bottom of the piston ring 2 is supported by the hydraulic oil 2, thereby avoiding support from the pedal and preventing the inner sleeve from falling. When the inner sleeve needs to fall, the By manually pushing the push rod toward the spring ball rod, the push rod will push the spring ball rod and the tapered ring to separate, allowing the fixed sleeve 2 to be connected with the fixed sleeve 1. The inner sleeve will drop under the influence of its own weight, allowing the sliding frame to squeeze the pedal, and the pedal will squeeze the piston ring 2, so that the hydraulic oil in the fixed sleeve 2 can pass through the oil pipe and enter the fixed sleeve 1, completing the lowering of the inner sleeve, thereby realizing the rapid adjustment of the height of the inner sleeve, reducing tedious operating steps, making the operation more convenient, and being able to accurately adjust the height of the inner sleeve.

[0012] (2) When the sliding frame of the present invention rises, it will also drive the sliding plate to rise. The sliding plate will squeeze the gas in the connecting frame. The squeezed gas will enter the gas hose and then enter the rubber expansion block through the gas hose, causing the rubber expansion block to expand and better fit the sole of the user's shoe. At the same time, when the sliding frame rises, it will also drive the rotating frame to rise, causing the rotating frame to rotate and tilt, pushing the spring plate to fall, driving the rubber pressing plate to fall and contact the toe of the user's shoe. The expansion of the rubber expansion block cooperates with the rubber pressing plate to increase the stability between the shoe upper and the rubber expansion block, effectively preventing sliding when stepping on the rubber expansion block, which affects the stability of the user's control of the lifting height of the inner sleeve.

[0013] (3) In the present invention, when the spring plate descends, it drives the connecting rod 1 to descend, and the connecting rod 1 rotates the connecting rod, which pushes the extrusion plate 1 to move toward the pedal. When the extrusion plate 1 covers the air inlet, the extrusion plate 1 squeezes the gas in the fixed frame 1, and the gas enters the tilting block through the air inlet pipe. At this time, the squeezed gas will be blocked by the spring blocking plate, so the gas will generate high pressure. During the movement of the extrusion plate 1, it will also drive the connecting rod 2 to move until the connecting rod 2 contacts the spring blocking plate, pushing the spring blocking plate to rotate, so that the spring blocking plate accumulates rebound force, and a gap is formed between the spring blocking plate and the tilting block. Since the pedal will tilt when stepped on, the rubber expansion block will also tilt, and the shape of the tilting block is also tilted. Figure 8 As shown, when the spring blocking plate rotates, high-pressure gas will be ejected from the gap toward the surface of the rubber expansion block to clean the dirt on the surface of the rubber expansion block, effectively preventing the presence of a lot of dirt in the surveying environment. The dirt adheres to the shoes and then falls from the shoes onto the rubber expansion block, causing more and more dirt to pile up on the rubber expansion block, which may cause slipping during subsequent stepping, thereby reducing the impact of slipping on controlling the height of the inner sleeve.

[0014] (4) In the present invention, when the extrusion plate 1 moves, it also drives the connecting rod 3 to move, and the connecting rod 3 pushes the extrusion plate 2 to move, and the extrusion plate 2 squeezes the gas in the fixed frame 2. The squeezed gas enters the jet tube and is ejected toward the user's feet through the jet tube. During the rotation of the pedal, the jet tube will frequently eject light gas toward the user's feet. Frequent ejection of light gas helps to soothe the user's feet and reduce fatigue caused by using the pedal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic cross-sectional view of the outer sleeve of the present invention; Figure 4 For the present invention Figure 3 A is an enlarged schematic diagram; Figure 5 For the present invention Figure 3 The amplification intention of the middle D; Figure 6 This is a cross-sectional schematic diagram of a fixing frame of the present invention; Figure 7 For the present invention Figure 6 A magnified schematic diagram of middle C; Figure 8 It is a rear cross-sectional schematic diagram of the tilting block of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows: In the figure: 1. Outer sleeve; 11. Inner sleeve; 12. Sliding frame; 13. Support leg; 14. Pedal; 141. Rubber expansion block; 15. Support plate; 2. Lifting mechanism; 21. Fixed sleeve 1; 22. Piston ring 1; 23. Fixed sleeve 2; 24. Piston ring 2; 3. Blocking mechanism; 31. Oil pipe; 32. Sliding sleeve; 33. Conical ring; 34. Spring ball rod; 35. Push rod; 4. Pressing assembly; 41. Connecting frame; 42. Sliding plate; 43. Air hose; 44. Fixed frame; 45. Rotating frame; 46. Spring plate; 47. Fixed rod; 48. Rubber pressing plate; 5. Jet assembly; 51. Fixed frame 1; 511. Air inlet; 52. Extrusion plate 1; 521. Connecting rod; 53. Connecting rod 1; 54. Air inlet pipe; 55. Tilting block; 551. Spring blocking plate; 56. Connecting rod 2; 57. Fixed frame 2; 571. Extrusion plate 2; 572. Connecting rod 3; 573. Jet pipe. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] For example 1, please refer to Figures 1-4The present invention is a surveying pole for topographic surveying in municipal engineering, comprising an outer sleeve 1, an inner sleeve 11 being slidably connected to the inner wall of the outer sleeve 1, a sliding frame 12 being fixedly connected to the bottom of the inner sleeve 11, three supporting legs 13 being fixedly connected to the outer wall of the inner sleeve 11, a pedal 14 being rotatably connected to the inner wall of the outer sleeve 1, a rubber expansion block 141 being fixedly connected to the top of the pedal 14, and a support plate 15 being fixedly connected to the bottom of the outer sleeve 1; The jacking mechanism 2 includes a fixed sleeve 21 fixedly connected to the inner wall of the outer sleeve 1, a piston ring 22 is slidably connected to the inner wall of the fixed sleeve 21, a hydraulic oil 1 is provided on the inner wall of the fixed sleeve 21, the bottom of the piston ring 22 is fixedly connected to the top of the sliding frame 12, a fixed sleeve 23 is fixedly connected to the inner wall of the outer sleeve 1, a piston ring 24 is slidably connected to the inner wall of the fixed sleeve 23, and a hydraulic oil 2 is provided on the bottom of the piston ring 24. A pressing component 4 is provided on the outer wall of the outer sleeve 1, and a blocking mechanism 3 is provided on the inner wall of the outer sleeve 1; The blocking mechanism 3 includes an oil delivery pipe 31 fixedly connected to the inner wall of the outer sleeve 1, a sliding sleeve 32 fixedly connected to the inner wall of the oil delivery pipe 31, a tapered ring 33 fixedly connected to the inner wall of the oil delivery pipe 31, a spring ball rod 34 slidably connected to the inner wall of the sliding sleeve 32, and hydraulic oil is provided on the inner wall of the oil delivery pipe 31; Among them, the inner wall of the fixed sleeve 21 is slidably connected with a push rod 35, and the outer wall of the push rod 35 is slidably connected with the inner wall of the sliding frame 12. The top of the support plate 15 is provided with an air injection assembly 5. The user carries the outer sleeve 1 to the position to be measured, and supports the outer sleeve 1 by contacting the ground with the support legs 13. When the height of the inner sleeve 11 needs to be adjusted, the user supports the outer sleeve 1 with both hands, places the heel on the support plate 15, and the toe on the rubber expansion block 141, and then steps on the rubber expansion block 141 to rotate the pedal 14, so that the side of the pedal 14 stepped on by the foot drops and the other side rises. The raised side will slide The frame 12 is lifted up, thereby allowing the inner sleeve 11 to rise and adjust the height of the inner sleeve 11. When the sliding frame 12 rises, it will also drive the piston ring 1 22 to rise. The piston ring 1 22 will squeeze the hydraulic oil 1 in the fixed sleeve 1 21. The squeezed hydraulic oil 1 will push the spring ball rod 34 to move, so that the spring ball rod 34 is separated from the tapered ring 33, allowing the spring ball rod 34 to accumulate resilience. Since the tapered ring 33 is conical in shape, when the spring ball rod 34 is separated from the tapered ring 33, a gap will leak between the two, and the hydraulic oil 1 will enter the oil pipe 31 through the gap, mix with the hydraulic oil 3 in the oil pipe 31, and enter the piston ring 2 24 through the oil pipe 31. The bottom of the inner sleeve 11 is mixed with the hydraulic oil 2, thereby lifting the piston ring 24 and allowing the piston ring 24 to contact the bottom of the pedal 14. When the height adjustment of the inner sleeve 11 is completed, the pedal 14 is released. At this time, the force of squeezing the hydraulic oil 1 disappears, and the squeezing force on the spring ball rod 34 also disappears. The rebound force of the spring ball rod 34 will be released, allowing the spring ball rod 34 to contact the conical surface of the tapered ring 33 again, thereby blocking the tapered ring 33. At this time, the top of the piston ring 24 contacts the bottom of the pedal 14, and the bottom of the piston ring 24 is supported by the hydraulic oil 2, thereby avoiding the support of the pedal 14 and preventing the inner sleeve 11 from falling. When the inner sleeve is needed When the cylinder 11 descends, the push rod 35 is manually pushed toward the spring ball rod 34, and the push rod 35 will push the spring ball rod 34 to separate from the tapered ring 33, allowing the fixed sleeve 23 to be connected with the fixed sleeve 1 21. The inner sleeve 11 will descend under the influence of its own weight, allowing the sliding frame 12 to squeeze the pedal 14, and the pedal 14 will squeeze the piston ring 24, so that the hydraulic oil 2 in the fixed sleeve 23 can pass through the oil pipe 31 and enter the fixed sleeve 1 21, completing the descent of the inner sleeve 11, thereby realizing the rapid adjustment of the height of the inner sleeve 11, reducing cumbersome operating steps, making the operation more convenient, and being able to accurately adjust the height of the inner sleeve 11.

[0020] For example 2, please refer to Figure 5-Figure 8The present invention is a surveying pole for topographic surveying of municipal engineering projects. Based on Example 1, the pressing assembly 4 includes a connecting frame 41 fixedly connected to the outer wall of the outer sleeve 1, a sliding plate 42 is slidably connected to the inner wall of the connecting frame 41, the bottom of the sliding plate 42 is fixedly connected to the top of the sliding frame 12, and a gas hose 43 is connected through the inner wall of the connecting frame 41; Among them, the outer wall of the gas hose 43 is slidably connected to the inner wall of the sliding plate 42, and the outer wall of the gas hose 43 is through-connected to the inner wall of the rubber expansion block 141. When the sliding frame 12 rises, it will also drive the sliding plate 42 to rise. The sliding plate 42 will squeeze the gas in the connecting frame 41, and the squeezed gas will enter the gas hose 43, and enter the rubber expansion block 141 through the gas hose 43, allowing the rubber expansion block 141 to expand and better fit the sole of the user.

[0021] The pressing assembly 4 further includes a fixing frame 44 fixedly connected to the bottom of the connecting frame 41. The outer wall of the fixing frame 44 is rotatably connected to a rotating frame 45. The inner wall of the rotating frame 45 is slidably connected to the bottom of the sliding frame 12. A spring plate 46 is provided at the bottom of the connection frame 41 , and the top of the spring plate 46 is slidably connected to the inner wall of the rotating frame 45 .

[0022] The pressing assembly 4 also includes two fixed rods 47 fixedly connected to the bottom of the connecting frame 41. The inner walls of the spring plates 46 are slidably connected to the outer walls of the two fixed rods 47. The bottom of the spring plates 46 is fixedly connected to a rubber pressing plate 48. At the same time, when the sliding frame 12 rises, it will also drive the rotating frame 45 to rise, allowing the rotating frame 45 to rotate and tilt the rotating frame 45, pushing the spring plate 46 to descend, driving the rubber pressing plate 48 to descend, contacting the toe of the user's shoe, and increasing the stability between the shoe upper and the rubber expansion block 141 by expanding the rubber expansion block 141 and cooperating with the rubber pressing plate 48.

[0023] The jet assembly 5 includes a fixed frame 51 fixedly connected to the top of the support plate 15. Five air inlet holes 511 are opened on the inner wall of the fixed frame 51. An extrusion plate 52 is slidably connected to the inner wall of the fixed frame 51. A connecting rod 521 is rotatably connected to the side wall of the extrusion plate 52. Among them, a connecting rod 53 is provided on the outer wall of the outer sleeve 1, and the side wall of the connecting rod 53 is fixedly connected to the side wall of the spring plate 46, and the side wall of the connecting rod 53 is rotatably connected to the inner wall of the connecting rod 521. When the spring plate 46 descends, it will drive the connecting rod 53 to descend, and the connecting rod 53 will rotate the connecting rod 521, and the connecting rod 521 will push the extrusion plate 52 to move toward the pedal 14. When the extrusion plate 52 covers the air inlet hole 511, the extrusion plate 52 will squeeze the gas in the fixed frame 51.

[0024] The jet assembly 5 also includes a tilting block 55 fixedly connected to the top of the fixed frame 51. The inner wall of the fixed frame 51 is connected to the air inlet pipe 54. The inner wall of the tilting block 55 is rotatably connected to the spring blocking plate 551. The side wall of the extrusion plate 52 is fixedly connected to the connecting rod 2 56. Among them, the outer wall of the air intake pipe 54 is connected with the inner wall of the tilting block 55, and the gas will enter the tilting block 55 through the air intake pipe 54. At this time, the squeezed gas will be blocked by the spring blocking plate 551, so the gas will generate high pressure. During the movement of the squeezing plate 1 52, it will also drive the connecting rod 2 56 to move until the connecting rod 2 56 contacts the spring blocking plate 551, pushing the spring blocking plate 551 to rotate, so that the spring blocking plate 551 accumulates rebound force, and a gap leaks between the spring blocking plate 551 and the tilting block 55.

[0025] The jet assembly 5 further includes a second fixing frame 57 fixedly connected to the top of the support plate 15, a second extrusion plate 571 is slidably connected to the inner wall of the second fixing frame 57, and a third connecting rod 572 is fixedly connected to the side wall of the second extrusion plate 571; Among them, the side of the connecting rod three 572 away from the extrusion plate two 571 is fixedly connected to the side wall of the extrusion plate one 52, and the inner wall of the fixed frame two 57 is connected with a jet pipe 573. When the extrusion plate one 52 moves, it will also drive the connecting rod three 572 to move. The connecting rod three 572 will push the extrusion plate two 571 to move, and the extrusion plate two 571 will squeeze the gas in the fixed frame two 57. The squeezed gas will enter the jet pipe 573 and be sprayed towards the feet of the user through the jet pipe 573.

[0026] There is no limit to the number of the above components, and relevant technicians in this field can freely set them according to actual needs. It is only necessary to ensure that the above components are installed at the connection positions of the corresponding components.

[0027] A specific application of this embodiment is as follows: when the present invention is used, the user carries the outer sleeve 1 to the position to be measured, and supports the outer sleeve 1 by contacting the ground with the support legs 13. When the height of the inner sleeve 11 needs to be adjusted, the user supports the outer sleeve 1 with both hands, places the heels on the support plate 15, and the toes on the rubber expansion block 141, and then steps on the rubber expansion block 141 to rotate the pedal 14, so that the side of the pedal 14 stepped on by the foot descends and the other side rises. The raised side will push up the sliding frame 12, thereby raising the inner sleeve 11, adjusting the height of the inner sleeve 11, and adjusting the height of the sliding frame 11. 2 rises, it also drives piston ring 1 22 to rise, piston ring 1 22 will squeeze hydraulic oil 1 in fixed sleeve 1 21, and the squeezed hydraulic oil 1 will push the spring ball rod 34 to move, so that the spring ball rod 34 is separated from the tapered ring 33, allowing the spring ball rod 34 to accumulate resilience. Since the tapered ring 33 is conical in shape, when the spring ball rod 34 is separated from the tapered ring 33, a gap will leak between the two, and hydraulic oil 1 will enter the oil pipe 31 through the gap, mix with hydraulic oil 3 in the oil pipe 31, enter the bottom of piston ring 2 through the oil pipe 31, mix with hydraulic oil 2, and thus push piston ring 2 24 up. , let the piston ring 24 contact with the bottom of the pedal 14. When the height adjustment of the inner sleeve 11 is completed, release the stepping on the pedal 14. At this time, the force of squeezing the hydraulic oil 1 disappears, and the squeezing force on the spring ball rod 34 also disappears. The rebound force of the spring ball rod 34 will be released, allowing the spring ball rod 34 to contact the conical surface of the tapered ring 33 again, thereby blocking the tapered ring 33. At this time, the top of the piston ring 24 contacts the bottom of the pedal 14, and the bottom of the piston ring 24 is supported by the hydraulic oil 2, thereby avoiding the support of the pedal 14 and preventing the inner sleeve 11 from falling. When the inner sleeve 11 needs to fall, it is manually Push the push rod 35 toward the spring ball rod 34, and the push rod 35 will push the spring ball rod 34 to separate from the tapered ring 33, so that the fixed sleeve 23 and the fixed sleeve 1 21 are connected. The inner sleeve 11 will fall under the influence of its own weight, so that the sliding frame 12 will squeeze the pedal 14, and the pedal 14 will squeeze the piston ring 24, so that the hydraulic oil in the fixed sleeve 23 will pass through the oil pipe 31 and enter the fixed sleeve 1 21, completing the lowering of the inner sleeve 11, thereby realizing the rapid adjustment of the height of the inner sleeve 11, reducing cumbersome operating steps, making the operation more convenient, and being able to accurately adjust the height of the inner sleeve 11; Secondly, when the sliding frame 12 rises, it will also drive the sliding plate 42 to rise, and the sliding plate 42 will squeeze the gas in the connecting frame 41, and the squeezed gas will enter the gas hose 43, and enter the rubber expansion block 141 through the gas hose 43, so that the rubber expansion block 141 will expand and better fit the sole of the user's shoe. At the same time, when the sliding frame 12 rises, it will also drive the rotating frame 45 to rise, and the rotating frame 45 will rotate, so that the rotating frame 45 will tilt, pushing the spring plate 46 to fall, and driving the rubber pressing plate 48 to fall and contact the toe of the user's shoe. The expansion of the rubber expansion block 141 cooperates with the rubber pressing plate 48 to increase the stability between the shoe upper and the rubber expansion block 141, effectively preventing the rubber expansion block 141 from sliding when stepping on it, which affects the stability of the user's control of the lifting height of the inner sleeve 11. Secondly, when the spring plate 46 descends, it will drive the connecting rod 1 53 to descend, and the connecting rod 1 53 will make the connecting rod 521 rotate, and the connecting rod 521 will push the extrusion plate 1 52 to move toward the pedal 14. When the extrusion plate 1 52 covers the air inlet hole 511, the extrusion plate 1 52 will squeeze the gas in the fixed frame 1 51, and the gas will enter the tilting block 55 through the air inlet pipe 54. At this time, the squeezed gas will be blocked by the spring blocking plate 551, so the gas will generate high pressure. During the movement of the extrusion plate 1 52, it will also drive the connecting rod 2 56 to move until the connecting rod 2 56 contacts the spring blocking plate 551, pushing the spring blocking plate 551 to rotate, so that the spring blocking plate 551 accumulates rebound force, and a gap is formed between the spring blocking plate 551 and the tilting block 55. Since the pedal 14 is stepped on, it will tilt, and the rubber expansion block 141 will also tilt, and the shape of the tilting block 55 is also tilted. Figure 8 As shown, when the spring blocking plate 551 rotates, high-pressure gas will be ejected from the gap toward the surface of the rubber expansion block 141, cleaning the dirt on the surface of the rubber expansion block 141, effectively preventing the presence of a lot of dirt in the surveying environment, the dirt adhering to the shoes, and then falling from the shoes onto the rubber expansion block 141, causing more and more dirt to accumulate on the rubber expansion block 141, which may cause slipping during subsequent stepping, thereby reducing the impact of slipping on the height control of the inner sleeve 11; When the inner sleeve 11 returns to its original position, the sliding frame 12 also returns to its original position, thereby returning the second connecting rod 56 and the first connecting rod 53 to their original position, and the first extrusion plate 52 to its original position, so that the air inlet 511 is once again connected to the side of the first fixed frame 51 near the pedal 14, allowing external air to enter the first fixed frame 51, completing the replenishment of the air in the first fixed frame 51; Secondly, when the extrusion plate 1 52 moves, it will also drive the connecting rod 3 572 to move, and the connecting rod 3 572 will push the extrusion plate 2 571 to move, and the extrusion plate 2 571 will squeeze the gas in the fixed frame 2 57, and the squeezed gas will enter the jet pipe 573 and be sprayed toward the user's feet through the jet pipe 573. During the rotation of the pedal 14, the jet pipe 573 will frequently spray light gas toward the user's feet. The frequent spraying of light gas helps to soothe the user's feet and reduce the fatigue caused by using the pedal 14.

[0028] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A surveying pole for topographic surveying of municipal engineering, comprising an outer sleeve (1), an inner sleeve (11) being slidably connected to the inner wall of the outer sleeve (1), a sliding frame (12) being fixedly connected to the bottom of the inner sleeve (11), three supporting legs (13) being fixedly connected to the outer wall of the inner sleeve (11), a pedal (14) being rotatably connected to the inner wall of the outer sleeve (1), a rubber expansion block (141) being fixedly connected to the top of the pedal (14), and a support plate (15) being fixedly connected to the bottom of the outer sleeve (1), characterized in that: Also includes: A lifting mechanism (2) includes a fixed sleeve (21) fixedly connected to the inner wall of the outer sleeve (1), a piston ring (22) slidably connected to the inner wall of the fixed sleeve (21), hydraulic oil (1) is provided on the inner wall of the fixed sleeve (21), the bottom of the piston ring (22) is fixedly connected to the top of the sliding frame (12), a fixed sleeve (23) fixedly connected to the inner wall of the outer sleeve (1), a piston ring (24) slidably connected to the inner wall of the fixed sleeve (23), hydraulic oil (2) is provided on the bottom of the piston ring (24), a pressing assembly (4) is provided on the outer wall of the outer sleeve (1), and a blocking mechanism (3) is provided on the inner wall of the outer sleeve (1).

2. The surveying pole for municipal engineering topographic surveying according to claim 1, characterized in that: The blocking mechanism (3) comprises an oil delivery pipe (31) fixedly connected to the inner wall of the outer sleeve (1), a sliding sleeve (32) fixedly connected to the inner wall of the oil delivery pipe (31), a conical ring (33) fixedly connected to the inner wall of the oil delivery pipe (31), a spring ball rod (34) slidably connected to the inner wall of the sliding sleeve (32), and hydraulic oil is provided on the inner wall of the oil delivery pipe (31); The inner wall of the fixed sleeve (21) is slidably connected to a push rod (35), the outer wall of the push rod (35) is slidably connected to the inner wall of the sliding frame (12), and the top of the support plate (15) is provided with an air injection assembly (5).

3. The surveying pole for municipal engineering topographic surveying according to claim 2, characterized in that: The pressing assembly (4) includes a connecting frame (41) fixedly connected to the outer wall of the outer sleeve (1), a sliding plate (42) is slidably connected to the inner wall of the connecting frame (41), the bottom of the sliding plate (42) is fixedly connected to the top of the sliding frame (12), and a gas hose (43) is connected through the inner wall of the connecting frame (41); The outer wall of the gas delivery hose (43) is slidably connected to the inner wall of the sliding plate (42), and the outer wall of the gas delivery hose (43) is through-connected to the inner wall of the rubber expansion block (141).

4. The surveying pole for municipal engineering topographic surveying according to claim 3, characterized in that: The pressing assembly (4) further comprises a fixing frame (44) fixedly connected to the bottom of the connecting frame (41); the outer wall of the fixing frame (44) is rotatably connected to a rotating frame (45); the inner wall of the rotating frame (45) is slidably connected to the bottom of the sliding frame (12); A spring plate (46) is provided at the bottom of the connection frame (41), and the top of the spring plate (46) is slidably connected to the inner wall of the rotating frame (45).

5. The surveying pole for municipal engineering topographic surveying according to claim 4, characterized in that: The pressing assembly (4) further comprises two fixing rods (47) fixedly connected to the bottom of the connecting frame (41), the inner wall of the spring plate (46) is slidably connected to the outer walls of the two fixing rods (47), and the bottom of the spring plate (46) is fixedly connected to a rubber pressing plate (48).

6. The surveying pole for municipal engineering topographic surveying according to claim 5, characterized in that: The jet assembly (5) includes a fixed frame (51) fixedly connected to the top of the support plate (15), five air inlet holes (511) are opened on the inner wall of the fixed frame (51), an extrusion plate (52) is slidably connected to the inner wall of the fixed frame (51), and a connecting rod (521) is rotatably connected to the side wall of the extrusion plate (52); A connecting rod (53) is provided on the outer wall of the outer sleeve (1), the side wall of the connecting rod (53) is fixedly connected to the side wall of the spring plate (46), and the side wall of the connecting rod (53) is rotatably connected to the inner wall of the connecting rod (521).

7. The surveying pole for municipal engineering topographic surveying according to claim 6, characterized in that: The jet assembly (5) further comprises a tilting block (55) fixedly connected to the top of the fixed frame (51), an air inlet pipe (54) is connected through the inner wall of the fixed frame (51), a spring blocking plate (551) is rotatably connected to the inner wall of the tilting block (55), and a connecting rod (56) is fixedly connected to the side wall of the extrusion plate (52); The outer wall of the air inlet pipe (54) is connected to the inner wall of the tilting block (55).

8. The surveying pole for municipal engineering topographic surveying according to claim 7, characterized in that: The jet assembly (5) further comprises a second fixing frame (57) fixedly connected to the top of the support plate (15), an inner wall of the second fixing frame (57) being slidably connected to a second extrusion plate (571), and a side wall of the second extrusion plate (571) being fixedly connected to a third connecting rod (572); The side of the connecting rod 3 (572) away from the extrusion plate 2 (571) is fixedly connected to the side wall of the extrusion plate 1 (52), and the inner wall of the fixed frame 2 (57) is connected with an air injection pipe (573).

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