An engineering surveying pole

Abstract

The application relates to an engineering surveying pole and relates to the technical field of surveying poles, and comprises a base, a pole body and a retaining mechanism, wherein the retaining mechanism comprises a rotating rod arranged in a horizontal state on the base, a clamp arranged on the rotating rod and used for clamping the pole body, a counterweight assembly arranged on the rotating rod and used for positioning the position of the rotating rod under the action of gravity so that the pole body is kept perpendicular to a horizontal plane, and a locking assembly arranged on the base and used for positioning the rotating rod. The base is placed on a roadbed, the locking assembly is loosened, the counterweight assembly positions the position of the clamp under the action of gravity, then the locking assembly is started to position the position of the rotating rod, and finally the surveying pole body is installed, so that the installation of the pole body is realized, the pole body is kept perpendicular to the horizontal plane, and the construction quality and efficiency are improved.

Description

Technical Field

[0001] This application relates to the technical field of benchmarks, and in particular to an engineering surveying benchmark. Background Technology

[0002] Engineering surveying poles are the most commonly used surveying devices in engineering construction. When conducting measurements, engineering surveying poles need to be inserted into the roadbed to measure multiple points. If the project is large, the distance between the points is also relatively large, so the staff needs to carry the surveying poles and move them.

[0003] Currently, in surveying, the markers are often held manually, with the operator relying on their sense of touch to ensure the correct angle. However, due to the complexity of the terrain and the varying skill levels of the operators, it is difficult to ensure that the markers are perpendicular to the horizontal plane, resulting in inaccurate measurements and compromised construction quality. Furthermore, manual handling places a high strain on the workers and takes a long time, thus reducing construction efficiency. Summary of the Invention

[0004] To improve construction quality and efficiency, this application provides an engineering surveying benchmark.

[0005] This application provides an engineering surveying benchmark, which adopts the following technical solution: An engineering surveying pole includes a base, a pole body, and a retaining mechanism disposed on the base for mounting the pole body and keeping the pole body perpendicular to the horizontal plane. The retaining mechanism includes: A rotating rod, which is rotatably mounted on the base and is in a horizontal position; A clamp is mounted on a rotating rod and is used to clamp the target pole body; A counterweight assembly is mounted on a rotating rod and is used to position the rotating rod under the action of gravity, so that the pole body remains perpendicular to the horizontal plane. A locking assembly is disposed on the base and is used to position the rotating rod.

[0006] By adopting the above technical solution, the base is placed on the roadbed, the locking component is released, and the rotating rod can rotate freely. Therefore, the counterweight component drives the rotating rod to rotate under the action of gravity. The rotation of the rotating rod drives the clamp to rotate, thereby positioning the clamp. Then, the locking component is activated to position the rotating rod. Finally, the measuring pole body can be installed on the clamp, thus realizing the installation of the pole body and keeping the pole body perpendicular to the horizontal plane. This improves the accuracy and convenience of measurement, and enhances the construction quality and efficiency.

[0007] Optionally, a rotating sleeve is rotatably mounted on the base, which is horizontal and whose rotation direction is perpendicular to that of the rotating rod. The rotating rod is rotatably mounted on the rotating sleeve. Three counterweight components are provided, two of which are located at both ends of the rotating rod and the other is located on the rotating sleeve, and are used to position the rotating rod and the rotating sleeve respectively. Two locking components are provided, located on the base and the rotating sleeve respectively, and are used to position the rotating sleeve and the rotating rod respectively.

[0008] By adopting the above technical solution, the two counterweight components are located at both ends of the rotating rod, making the weight at both ends of the rotating rod the same and ensuring that the rotating rod is in a horizontal state. This improves the convenience and accuracy of positioning the rotating rod. With both locking components unlocked, the two counterweight components drive the rotating sleeve and rotating rod to rotate under the action of gravity, thereby achieving positioning of the rotating rod from two mutually perpendicular directions. After positioning is completed, the two locking components are activated to position the rotating sleeve and rotating rod. This further improves the perpendicularity of the marker body to the horizontal plane, thereby improving the accuracy and convenience of measurement, and enhancing construction quality and efficiency.

[0009] Optionally, the counterweight assembly includes: A connecting sleeve, wherein the connecting sleeve is fitted onto the rotating rod and is threadedly connected to a connecting screw that abuts against the rotating rod for positioning; A connecting rod, which is mounted on a connecting sleeve; A counterweight ball is mounted on a connecting rod, and the connecting rod is positioned vertically downwards under the action of gravity.

[0010] By adopting the above technical solution, the connecting sleeve is fitted onto the rotating rod, and then the connecting screw is tightened to press against the rotating rod, thereby fixing the counterweight component onto the rotating rod. Then, the counterweight ball rotates downward under the action of gravity, and the rotation of the counterweight ball causes the connecting rod and the rotating rod to rotate simultaneously. The rotation of the rotating rod causes the clamp to rotate, thereby positioning the clamp. This ensures that the marker body remains perpendicular to the horizontal plane after being installed on the clamp, improving construction quality and efficiency. Moreover, when moving the base, the counterweight component can be disassembled from the rotating rod for separate transportation, further improving the convenience of transportation and construction efficiency.

[0011] Optionally, the locking component includes: A locking post is slidably mounted on the base and has a locking surface that fits against the rotating rod on the side wall near the rotating rod. A locking screw, which is threaded onto the base and used to push the locking surface against the rotating rod for positioning.

[0012] By adopting the above technical solution, turning the locking screw moves the locking block closer to the rotating rod, so that the locking surface is tightly attached to the rotating rod, thereby locking the rotating rod; when it is necessary to unlock, turning the locking screw away from the locking block allows the locking block to move freely, so the rotating rod can rotate freely, which improves the convenience of locking and unlocking and improves construction efficiency.

[0013] Optionally, the clamp includes: A rotating column is mounted on the connecting sleeve, with its axis perpendicular to the axis of the rotating rod and located above the connecting rod. A support rod, which is rotatably mounted on a rotating column and extends vertically above the base; A guide ring is provided on the top of the support rod. The marker body slides through the guide ring for positioning and its bottom end is inserted into the roadbed for positioning. A positioning component is provided on the connecting sleeve and is used to position the support rod. After the marker body is removed from the clamp and the positioning component is unlocked, the support rod rotates toward the side closer to the connecting rod, so that the support rod abuts against the connecting sleeve for positioning. At this time, the sum of the weights of one counterweight component and the clamp located at both ends of the rotating rod is the same as the weight of the other counterweight component, making the weights at both ends of the rotating rod the same.

[0014] By adopting the above technical solution, the locking component is released, and the rotating rod rotates, causing the connecting sleeve, support rod and guide ring to rotate simultaneously, thereby positioning the guide ring. After positioning, the locking component is positioned. Then, the marker body is vertically slid and inserted onto the guide ring, and the guide ring positions the marker plate, so that the marker body is inserted into the roadbed for positioning, and then measurement is performed.

[0015] Meanwhile, the marker body is positioned by the guide ring and the insertion point of the roadbed. The guide ring is located above the base, which shortens the distance between the guide ring and the top of the marker body. This improves the support effect on the marker body, enhances the stability and convenience of measurement, and improves the construction quality and efficiency.

[0016] After the marker pole body is measured, it is pulled upwards. Then, the support rod is rotated to drive the guide ring towards the side closer to the connecting rod until the support rod abuts against the connecting sleeve for positioning. The positioning component then positions the support rod, connecting it to the connecting rod. This causes the center of gravity of the base and the retaining mechanism to shift downwards, thus improving the stability of the base during subsequent movement. Simultaneously, after the base is in position, two locking components unlock the rotating sleeve and rotating rod. The two counterweight components then position the rotating rod. After positioning, the two locking components lock the rotating sleeve and rotating rod, and the positioning component unlocks the support rod. Rotating the support rod causes the guide ring to return to its original position, and the positioning component positions the guide ring. The marker pole body can then be slid onto the guide ring, and its bottom end is inserted into the roadbed for positioning, thus improving construction convenience and efficiency.

[0017] Meanwhile, the support rod and guide ring will not interfere with the positioning of the rotating rod by the counterweight assembly after rotating toward the connecting rod. Moreover, the support rod and guide ring can also be used as counterweights for the rotating rod, thus further improving the accuracy and convenience of measurement, and improving construction quality and efficiency.

[0018] Optionally, the positioning component includes: The first magnet and the second magnet are disposed on opposite side walls of the support rod; An iron block is placed on the upper surface of the connecting sleeve. The first magnet is attracted to the iron block or the second magnet is attracted to the connecting rod to position the support rod.

[0019] By adopting the above technical solution, the support rod is rotated towards the side closer to the connecting rod. The rotation of the support rod pulls the first magnet away from the iron block, so that the support rod abuts against the connecting sleeve for positioning, and the second magnet is attached to the connecting rod for positioning, thereby realizing the connection between the support rod and the connecting rod. The support rod is rotated away from the connecting rod, so that the second magnet is detached from the connecting rod, until the first magnet is attached to the iron block for positioning, thereby realizing the positioning of the support rod and the guide ring.

[0020] Optionally, the base is provided with a drive mechanism for moving the base, the drive mechanism comprising: Multiple plug-in rods, each of which is vertically slidably mounted on a base and has a pointed tip for insertion into the roadbed for positioning; Multiple drive rods are rotatably mounted on a base in a direction that is close to or away from the roadbed, and each drive rod has a roller rotatably mounted at its bottom end. Each drive rod is connected to a drive rod via a linkage assembly, so that the movement of the plug rod and the rotation of the drive rod occur simultaneously. When the plug rod is inserted downward into the roadbed, the multiple rollers rotate upward to above the roadbed. When the plug rod moves upward and disengages from the roadbed, the multiple rollers roll on the roadbed for support. A driving element, which is mounted on a base and is used to drive the movement of multiple plug rods; A pull rope is mounted on the base and is used to pull the base to move.

[0021] By adopting the above technical solution, when movement is required, the marker body is pulled upwards, and then the drive mechanism is activated to move multiple plug-in rods upwards, detaching them from the roadbed. The upward movement of the plug-in rods, through the linkage component, drives multiple drive rods and rollers closer to the roadbed, causing the multiple rollers to roll on the roadbed and support the base. Then, the pull rope can be pulled to move the base, thereby moving the marker body and base to the location to be measured. Then, the drive mechanism is activated to move multiple plug-in rods downwards and insert them into the roadbed, while the multiple drive rods drive the rollers away from the roadbed and detach them from the roadbed. This achieves the movement of the base and the positioning of the base. Positioning the base improves the stability and convenience of the mechanism during operation, and improves the construction quality and efficiency.

[0022] Optionally, the linkage component; A rack, which is mounted on a connector rod; The toothed portion is disposed on the drive rod and meshes with the rack.

[0023] By adopting the above technical solution, the movement of the connector rod drives the rack to move, and the movement of the rack drives the toothed part and the drive rod to rotate, thereby realizing that the movement of the connector rod and the rotation of the drive rod can be carried out simultaneously.

[0024] Optionally, the base is provided with a winding mechanism for winding the pull cord, the winding mechanism including: A take-up reel, which is rotatably mounted on a base, and the pull rope is wound onto the take-up reel; A baffle is provided on the base and has a through hole for the pull rope to pass through; A pull ring is disposed at one end of a pull rope and is positioned against a baffle plate. A rotating assembly is mounted on a take-up reel and drives the take-up reel to rotate and position the take-up reel.

[0025] By adopting the above technical solution, when the pull rope is needed, the rotating component is unlocked, the pull ring is pulled to move the pull rope, so that the pull rope on the take-up reel is fully released. Then, the pull ring can be pulled to move the base. After the movement is completed, the rotating component is activated to rotate the take-up reel to pull the pull rope and rewind it. The movement of the pull rope causes the pull ring to press against the baffle for positioning. Then, the rotating component positions the take-up reel, thereby improving the convenience of moving the base and improving construction efficiency.

[0026] Optionally, the rotating assembly includes: A rotating disk, which is mounted on a take-up reel; A rotating screw is eccentrically threaded onto a rotating disk and is used to drive the rotating disk to rotate and press against the base for positioning.

[0027] By adopting the above technical solution, when rotation is required, the rotating screw is turned away from the base, and then the rotating screw is held to drive the rotating disk to rotate. The rotation of the rotating disk drives the winding disk to rotate. After the rotation is completed, the rotating screw is turned to press against the base for positioning.

[0028] In summary, this application includes at least one of the following beneficial technical effects: By placing the base on the roadbed and releasing the locking component, the counterweight component positions the clamp under gravity. Then, the locking component is activated to position the rotating rod. Finally, the measuring pole body can be installed onto the clamp, thus achieving the installation of the pole body and keeping it perpendicular to the horizontal plane. This improves the accuracy and convenience of measurement, as well as the construction quality and efficiency. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of this application; Figure 2 This is a schematic diagram of the drive mechanism in this application; Figure 3 This is a schematic diagram of the winding mechanism in this application; Figure 4 This is a structural schematic diagram of the rotating sleeve and retaining mechanism in this application, in which a partial cross-sectional view of the feed sidewall of the connecting part shows the state in which the fixture positions the rod body; Figure 5 This is a structural diagram of the clamp and counterweight assembly in this application, used to show the state of the clamp after the marker body is removed.

[0030] Reference numerals: 1. Base; 11. Mounting part; 12. Connecting part; 13. Mounting column; 14. Vertical plate; 15. Connecting groove; 16. Marker body; 2. Rotating sleeve; 21. First rotating column; 22. Second rotating column; 23. Rotating tube; 3. Drive mechanism; 31. Insert rod; 32. Drive rod; 33. Drive component; 34. Pull rope; 35. Drive column; 36. Roller; 4. Linkage assembly; 41. Rack; 42. Toothed part; 5. Rewinding mechanism; 51. Rewinding reel; 52. Baffle; 53. Pull ring; 54. Rotating assembly; 55. Rotating disk; 56. Rotating screw; 6. Holding mechanism; 61. Rotating rod; 7. Clamp; 71. Rotating column; 72. Support rod; 721. Rotating section; 722. Support section; 723. Connecting section; 73. Guide ring; 74. Positioning assembly; 75. First magnet; 76. Second magnet; 77. Iron block; 8. Counterweight assembly; 81. Connecting sleeve; 82. Connecting rod; 83. Counterweight ball; 84. Connecting screw; 9. Locking assembly; 91. Locking column; 92. Locking screw. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] This application discloses an engineering surveying benchmark.

[0033] Reference Figure 1 The engineering surveying pole includes a base 1, a pole body 16, and a holding mechanism 6. The holding mechanism 6 is set on the base 1 and is used to install the pole body 16 and keep the pole body 16 perpendicular to the horizontal plane. The base 1 is provided with a drive mechanism 3 that drives the base 1 to move.

[0034] Reference Figure 1 and Figure 2The base 1 includes a mounting part 11 and a connecting part 12. The mounting part 11 is rectangular, and the connecting part 12 is located on the upper surface of the mounting part 11. Vertical mounting posts 13 are fixedly installed at the four corners of the lower surface of the mounting part 11. The drive mechanism 3 includes multiple plug-in rods 31, multiple drive rods 32, drive components 33, and pull ropes 34. The number of plug-in rods 31 is four, and they are vertically slidably installed on the side walls of the four mounting posts 13. The four plug-in rods 31 are located on the side walls of the four mounting posts 13 parallel to the length direction of the mounting part 11. Meanwhile, the bottom end of the plug rod 31 extends below the mounting post 13, and the bottom end of the plug rod 31 is provided with a pointed tip for insertion into the roadbed for positioning; a horizontal drive post 35 is fixedly installed on the side wall of the mounting post 13 and on one side of the plug rod 31, and the axis of the drive post 35 is perpendicular to the length direction of the mounting part 11; there are four drive rods 32, which are rotatably installed on the four drive posts 35 respectively, and the end of the drive rod 32 away from the drive post 35 is inclined downward and rotatably installed with a roller 36, and the axis of rotation of the roller 36 is parallel to the axis of the drive post 35.

[0035] Each drive rod 32 is connected to the plug rod 31 via a linkage assembly 4, so that the rotation of the drive rod 32 and the movement of the plug rod 31 occur simultaneously. The linkage assembly 4 includes a rack 41 and a toothed portion 42. The rack 41 is fixedly installed on the top of the plug rod 31 and is arranged vertically. The toothed portion 42 is fixedly installed on the top of the drive rod 32 and meshes with the rack 41.

[0036] The insertion rod 31 and the rack 41 move upwards simultaneously. The upward movement of the rack 41 drives the toothed part 42 to rotate, causing the bottom end of the drive rod 32 and the roller 36 to rotate downwards. When the bottom end of the insertion rod 31 is pulled out of the roadbed, multiple rollers 36 roll on the roadbed for support and positioning, so the base 1 can move freely. When the bottom ends of multiple insertion rods 31 are inserted into the roadbed for positioning, the rollers 36 rotate to the top of the roadbed.

[0037] The driving component 33 can be an electric actuator. A control box for controlling the start of the electric actuator is fixedly installed on the side wall of the mounting part 11, and a battery for providing power to the electric actuator is also fixedly installed on the side wall of the mounting part 11. There are four driving components 33, each corresponding to one of the four plug-in rods 31. The driving components 33 are fixedly installed on the side wall of the mounting part 11, and the piston rod of the driving component 33 is vertically downward and connected to the plug-in rod 31. The control box controls the four driving components 33 to start simultaneously, driving the four plug-in rods 31 to move up and down simultaneously.

[0038] Reference Figure 1 and Figure 3A pull rope 34 is mounted on the mounting part 11 and is used to pull the base 1 to move. The mounting part 11 is provided with a winding mechanism 5 for winding the pull rope 34. The winding mechanism 5 includes a winding reel 51, a baffle 52, a pull ring 53 and a rotating assembly 54. A vertical plate 14 is fixedly mounted on the upper surface of one end of the mounting part 11 and on one side of the connecting part 12. Two vertical plates 14 are spaced apart along the length direction perpendicular to the mounting part 11. The winding reel 51 is horizontally rotatably mounted on the side wall of the opposite side of the two vertical plates 14. At the same time, the axis of the winding reel 51 is perpendicular to the length direction of the mounting part 11, and the rotation direction of the winding reel 51 is perpendicular to the rotation direction of the roller 36.

[0039] A baffle 52 is fixedly installed on the upper surface of the mounting part 11 and located on the side of the take-up reel 51 away from the connecting part 12. The baffle 52 is horizontal and has through holes that penetrate the two side walls of the baffle 52, one near the take-up reel 51 and the other away from the take-up reel 51. A pull rope 34 is wound onto the take-up reel 51, with one end of the pull rope 34 fixedly connected to the take-up reel 51 and the other end of the pull rope 34 passing through the through hole. A pull ring 53 is fixedly installed on the end of the pull rope 34 that passes through the through hole and is positioned against the baffle 52.

[0040] Reference Figure 1 and Figure 3 The rotating assembly 54 is mounted on the vertical plate 14 and drives the take-up reel 51 to rotate and positions the take-up reel 51. The rotating assembly 54 includes a rotating disk 55 and a rotating screw 56. The rotating disk 55 is coaxially fixedly mounted on one end of the take-up reel 51 that extends out of the vertical plate 14, while the rotating screw 56 is eccentrically threaded onto the rotating disk 55. The axis of the rotating screw 56 is parallel to the axis of the take-up reel 51, and the rotating screw 56 is pressed against the vertical plate 14 for positioning.

[0041] When the base 1 needs to be moved, the rotating screw 56 is turned away from the vertical plate 14, which can pull the pull ring 53 to move the pull rope 34, so that the pull rope 34 on the take-up reel 51 is fully released. Then the pull ring 53 can be pulled to move the base 1. After the movement is completed, the rotating screw 56 is held to drive the rotating disk 55 to rotate around the axis of the take-up reel 51. The take-up reel 51 is rotated to be used to wind up the pull rope 34. The pull rope 34 moves and causes the pull ring 53 to abut against the baffle 52 for positioning. Then the rotating screw 56 is turned to press against the vertical plate 14 for positioning, thereby improving the stability and convenience of moving the base 1, and improving the construction quality and efficiency.

[0042] Reference Figure 1 and Figure 4A connecting groove 15 is provided on the upper surface of the connecting part 12, which penetrates the two side walls of the mounting part 11 along its length. A rotating sleeve 2 is mounted on the connecting groove 15. The rotating sleeve 2 includes a first rotating column 21, a second rotating column 22, and a rotating tube 23. The first rotating column 21 and the second rotating column 22 are rotatably mounted on opposite side walls of the connecting groove 15. The axes of the first rotating column 21 and the second rotating column 22 coincide and are parallel to the length of the mounting part 11. The rotating tube 23 is fixedly mounted on one opposite end of the first rotating column 21 and the second rotating column 22. The axis of the rotating tube 23 is perpendicular to the axis of the first rotating column 21. The intersection of the extended lines of the axes of the first rotating column 21 and the second rotating column 22 is located on the axis of the rotating tube 23. At the same time, the first rotating column 21 is located on the side of the rotating tube 23 away from the winding reel 51, and the end of the first rotating column 21 away from the rotating tube 23 extends out of the connecting part 12.

[0043] The holding mechanism 6 includes a rotating rod 61, a clamp 7, a counterweight assembly 8, and a locking assembly 9. The rotating rod 61 is coaxially mounted on the rotating tube 23, and both ends of the rotating rod 61 extend to both sides of the mounting part 11. The clamp 7 is set on the rotating rod 61 and is used to clamp the marker body 16. There are three counterweight assemblies 8, two of which are located at both ends of the rotating rod 61. The sum of the weights of one counterweight assembly 8 and the clamp 7 is the same as the weight of the other counterweight assembly 8, so that the weights on both ends of the rotating rod 61 are the same. The third counterweight assembly 8 is located at the end of the first rotating column 21 that extends outside the connecting part 12. The three counterweight assemblies 8 make the rotating tube 23 and the rotating rod 61 horizontal. There are also two locking assemblies 9, which are located on the connecting part 12 and the rotating tube 23, respectively. The two locking assemblies 9 are used to position the first rotating column 21 and the rotating rod 61.

[0044] The two locking components 9 have the same structure. The following explanation will focus on the locking component 9 located on the connecting part 12. The locking component 9 includes a locking post 91 and a locking screw 92. A threaded groove is provided on the upper surface of the connecting part 12 located above the first rotating post 21, and a vertical moving hole is provided at the bottom of the threaded groove. The locking post 91 is vertically slidably installed on the moving hole and has a locking surface that is tightly attached to the first rotating post 21 at its bottom end. The locking screw 92 is threadedly connected to the threaded groove and abuts against the top of the locking post 91. The locking screw 92 pushes the locking post 91 down, so that the locking surface is pressed against the first rotating post 21 for positioning, thereby positioning the first rotating post 21 and thus positioning the rotating sleeve 2 and the rotating rod 61. The locking screw 92 is away from the locking post 91, thus unlocking the rotating sleeve 2 and the rotating rod 61.

[0045] Reference Figure 4 and Figure 5The two counterweight components 8 have the same structure. The following explanation will take the counterweight component 8 located on the rotating rod 61 as an example. The counterweight component 8 includes a connecting sleeve 81, a connecting rod 82 and a counterweight ball 83. The connecting sleeve 81 is coaxially sleeved on one end of the rotating rod 61, and a connecting screw 84 is threaded on the connecting sleeve 81 to abut against the rotating rod 61 for positioning. The connecting rod 82 is fixedly installed on the side wall of the connecting sleeve 81, and the counterweight ball 83 is fixedly installed on the bottom end of the connecting rod 82. The connecting rod 82 is in a vertical state under the gravity of the counterweight ball 83, thereby realizing the positioning of the rotating sleeve 2 and the rotating rod 61.

[0046] Reference Figure 1 and Figure 4 The clamp 7 includes a rotating column 71, a support rod 72, a guide ring 73, and a positioning assembly 74. The rotating column 71 is fixedly installed on the outer wall of the connecting sleeve 81, and the rotating column 71 and the connecting rod 82 are located on the upper and lower sides of the axis of the connecting sleeve 81, respectively. At the same time, the axis of the rotating column 71 is parallel to the axis of the first rotating column 21. The support rod 72 includes a rotating section 721, a support section 722, and a connecting section 723 integrally formed. One end of the rotating section 721 is rotatably installed on the rotating column 71, and the other end extends horizontally to the side of the rotating column 71 near the rotating tube 23.

[0047] The bottom end of the support section 722 is located on the end of the rotating section 721 away from the rotating column 71, and the top end of the support section 722 extends vertically upward to above the base 1. The connecting section 723 is located at the top of the support section 722 and on the side of the support section 722 away from the rotating section 721. At the same time, the connecting section 723 extends horizontally to directly above the end of the rotating rod 61 away from the connecting sleeve 81. The guide ring 73 is fixedly installed on the end of the connecting section 723 away from the support section 722. The guide ring 73 is in a horizontal state, and the axis of the guide ring 73 is in a vertical state. The marker body 16 slides vertically through the guide ring 73, and the bottom end of the marker body 16 is inserted into the roadbed for positioning.

[0048] Reference Figure 4 and Figure 5 The positioning component 74 is disposed on the connecting sleeve 81 and is used to position the support rod 72. The positioning component 74 includes a first magnet 75, a second magnet 76, and an iron block 77. The first magnet 75 and the second magnet 76 are fixedly installed on opposite side walls of the support section 722, with the first magnet 75 located on the side of the support rod 72 near the guide ring 73 and below the second magnet 76. The iron block 77 is fixedly installed on the connecting sleeve 81, and is located above the axis of the connecting sleeve 81 and on the side of the support rod 72 near the guide ring 73.

[0049] When the marker body 16 needs to be positioned using the guide ring 73, the first magnet 75 is attracted to the iron block 77 for positioning. Then, the marker body 16 can be slid and inserted into the guide ring 73 with its bottom end inserted into the roadbed, and then measurement can be performed. After the marker body 16 is pulled out, the support rod 72 moves toward the connecting rod 82, so that the support section 722 abuts against the connecting sleeve 81 for positioning, and the second magnet 76 is attracted to the connecting rod 82 for positioning.

[0050] Reference Figure 4 and Figure 5 After the measurement is completed, the main body 16 of the measuring rod is pulled upward, and then the support section 722 is rotated towards the connecting rod 82. The rotation of the support section 722 causes the first magnet 75 to disengage from the iron block 77 and causes the second magnet 76 to approach the connecting rod 82, so that the support section 722 abuts against the rotating sleeve 2 for positioning, while the second magnet 76 is attached to the connecting rod 82 for positioning. This ensures that the support rod 72 and the guide ring 73 will not cause adverse effects when positioning the rotating rod 61 in the future. Moreover, the support rod 72 and the guide ring 73 can also achieve counterweight positioning of the rotating rod 61. At this time, the sum of the weights of the counterweight component 8 and the clamp 7 located on the rotating rod 61 and close to the support rod 72 is the same as the weight of the counterweight component 8 located at the other end of the rotating rod 61, thereby keeping the rotating rod 61 in a horizontal state.

[0051] When the rotating rod 61 has completed its positioning and the guide ring 73 is needed to position the target body 16, the rotating support section 722 moves away from the connecting rod 82, causing the second magnet 76 to detach from the connecting rod 82, until the first magnet 75 is attracted to the iron block 77 for positioning, so that the guide ring 73 can continue to be used to position the target body 16.

[0052] The working principle of this application embodiment is as follows: When the base 1 needs to be moved, the drive unit 33 is activated, causing the plug rod 31 to be pulled out of the roadbed, while multiple rollers 36 roll on the roadbed. Then, the rotating screw 56 is turned away from the vertical plate 14, which can then pull the pull ring 53 to drive the rollers 36 to rotate, thereby realizing the movement of the base 1. After the movement is completed, the drive unit 33 is activated, causing multiple plug rods 31 to be inserted into the roadbed, while multiple rollers 36 rotate to the top of the roadbed. The winding reel 51 is rotated to wind up the pull rope 34, and the pull rope 34 pulls the pull ring 53 against the baffle 52 for positioning. Finally, the rotating screw 56 is turned to press against the vertical plate 14 for positioning, thereby realizing the movement and positioning of the base 1.

[0053] Before the base 1 is moved, the two locking screws 92 are turned to unlock the rotating sleeve 2 and the rotating rod 61. Therefore, during the positioning process of the base 1, the two counterweight balls 83 position the rotating sleeve 2 and the rotating rod 61. After positioning, the two locking screws 92 are turned to position the rotating sleeve 2 and the rotating rod 61. Then, the support section 722 is rotated away from the connecting rod 82, so that the first magnet 75 is attracted to the iron block 77 for positioning. Then, the marker body 16 can be slid and inserted into the guide ring 73. Then, the marker body 16 is pushed into the roadbed for positioning. Then, the marker body 16 can be used for measurement, thereby improving the convenience and accuracy of measurement, and improving the construction quality and efficiency.

[0054] After the measurement is completed, pull out the main body 16 of the marker pole upwards, then rotate the support section 722 close to the connecting rod 82, so that the support section 722 abuts against the connecting sleeve 81 for positioning. The first magnet 75 disengages from the iron block 77, and the second magnet 76 is attached to the connecting rod 82 for positioning. Finally, turn the two locking screws 92 to unlock the rotating sleeve 2 and the rotating rod 61, and then you can move to the next position for measurement, which improves the construction quality and efficiency.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An engineering surveying benchmark, characterized in that: The system includes a base (1), a marker body (16), and a retaining mechanism (6) mounted on the base (1) for mounting the marker body (16) and keeping the marker body (16) perpendicular to the horizontal plane. The retaining mechanism (6) includes: Rotating rod (61), the rotating rod (61) is rotatably mounted on the base (1) and is in a horizontal state; A clamp (7) is mounted on a rotating rod (61) and is used to clamp the target body (16). The counterweight assembly (8) is set on the rotating rod (61) and is used to position the rotating rod (61) under the action of gravity, so that the marker body (16) remains perpendicular to the horizontal plane; Locking component (9), which is disposed on the base (1) and is used to position the rotating rod (61); A rotating sleeve (2) is rotatably mounted on the base (1) in a horizontal state and whose rotation direction is perpendicular to the rotation direction of the rotating rod (61). The rotating rod (61) is rotatably mounted on the rotating sleeve (2). There are three counterweight components (8), two of which are located at both ends of the rotating rod (61) and the other is located on the rotating sleeve (2) and are used to position the rotating rod (61) and the rotating sleeve (2) respectively. There are two locking components (9) located on the base (1) and the rotating sleeve (2) respectively and are used to position the rotating sleeve (2) and the rotating rod (61) respectively.

2. The engineering surveying benchmark according to claim 1, characterized in that: The counterweight assembly (8) includes: Connecting sleeve (81), the connecting sleeve (81) is sleeved on the rotating rod (61) and is threadedly connected to a connecting screw (84) that abuts against the rotating rod (61) for positioning. A connecting rod (82) is disposed on a connecting sleeve (81); A counterweight ball (83) is mounted on a connecting rod (82) and the connecting rod (82) is vertically downward under the action of gravity.

3. The engineering surveying benchmark according to claim 1, characterized in that: The locking component (9) includes: Locking post (91), the locking post (91) is slidably disposed on the base (1) and a locking surface that fits against the rotating rod (61) is provided on the side wall near the rotating rod (61); A locking screw (92) is threaded onto the base (1) and is used to push the locking surface against the rotating rod (61) for positioning.

4. The engineering surveying benchmark according to claim 2, characterized in that: The clamp (7) includes: Rotating column (71), the rotating column (71) is disposed on the connecting sleeve (81) and its axis is perpendicular to the axis of the rotating rod (61) and located above the connecting rod (82); Support rod (72), which is rotatably mounted on rotating column (71) and extends vertically above base (1); The guide ring (73) is set on the top of the support rod (72), and the marker body (16) slides through the guide ring (73) for positioning and the bottom end is inserted into the roadbed for positioning; Positioning component (74) is set on connecting sleeve (81) and used to position the support rod (72); after the marker body (16) is removed from the clamp (7) and the positioning component (74) is unlocked, the support rod (72) rotates toward the side closer to the connecting rod (82), so that the support rod (72) abuts against the connecting sleeve (81) for positioning. At this time, the sum of the weights of one counterweight component (8) and the clamp (7) at both ends of the rotating rod (61) is the same as the weight of the other counterweight component (8), so that the weights at both ends of the rotating rod (61) are the same.

5. An engineering surveying benchmark according to claim 4, characterized in that: The positioning component (74) includes: The first magnet (75) and the second magnet (76) are disposed on opposite side walls of the support rod (72); An iron block (77) is placed on the upper surface of the connecting sleeve (81). The first magnet (75) is attached to the iron block (77) or the second magnet (76) is attached to the connecting rod (82) to position the support rod (72).

6. The engineering surveying benchmark according to claim 1, characterized in that: The base (1) is provided with a drive mechanism (3) for moving the base (1), the drive mechanism (3) includes: Multiple plug-in rods (31) are vertically slidably disposed on the base (1) and have pointed tips for insertion into the roadbed for positioning; Multiple drive rods (32) are rotatably mounted on a base (1) in a direction close to or away from the roadbed, and each drive rod (32) is rotatably mounted with a roller (36) at its bottom end. Each drive rod (32) is connected to the drive rod (32) through a linkage assembly (4) so ​​that the movement of the plug rod (31) and the rotation of the drive rod (32) occur simultaneously. When the plug rod (31) is inserted downward into the roadbed, the multiple rollers (36) rotate upward to the top of the roadbed. When the plug rod (31) moves upward and disengages from the roadbed, the multiple rollers (36) roll on the roadbed for support. A drive unit (33) is disposed on a base (1) and is used to drive a plurality of plug rods (31) to move; A pull rope (34) is provided on the base (1) and is used to pull the base (1) to move.

7. An engineering surveying benchmark according to claim 6, characterized in that: The linkage component (4); A rack (41) is mounted on a connector (31); Toothed portion (42) is disposed on drive rod (32) and meshes with rack (41).

8. An engineering surveying benchmark according to claim 6, characterized in that: The base (1) is provided with a winding mechanism (5) for a winding pull rope (34), and the winding mechanism (5) includes: A take-up reel (51) is rotatably mounted on a base (1), and the pull rope (34) is wound onto the take-up reel (51). A baffle (52) is provided on the base (1) and has a through hole for the pull rope (34) to pass through; Pull ring (53), the pull ring (53) is set on one end of the pull rope (34) and abuts against the baffle (52) for positioning; Rotating assembly (54) is disposed on take-up reel (51) and drives take-up reel (51) to rotate and positions take-up reel (51).

9. An engineering surveying benchmark according to claim 8, characterized in that: The rotating assembly (54) includes: A rotating disk (55) is disposed on a take-up reel (51); Rotating screw (56) is eccentrically threaded onto rotating disk (55) and is used to drive rotating disk (55) to rotate and press against base (1) for positioning.

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