Super high-rise building engineering measuring equipment

By combining a ball joint, damping spring, threaded rod, clamping plate, and gear transmission, the stability and accuracy issues of the measurement equipment for super high-rise building engineering in dynamic environments have been solved, enabling high-precision measurement in complex environments.

CN121322808APending Publication Date: 2026-01-13CSCEC STRAIT CONSTR & DEV
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Patent Information

Application Number
CN202511491155.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-18
Publication Date
2026-01-13

AI Technical Summary

Technical Problem

Existing surveying equipment for super high-rise building projects struggles to accurately capture instantaneous deformations of buildings in dynamic environments, resulting in fluctuating measurement results and affecting accuracy.

Method used

The stabilizing assembly, which combines a ball joint and a damping spring, enhances the equipment's adaptability to installation in complex environments. It is double-fixed by a combination of a threaded rod and a clamping plate. Gear transmission provides precise feedback on the height gauge's angle adjustment. Combined with a locking structure consisting of a locking support plate and a rocker plate, it ensures the stability of the measured angle.

Benefits of technology

It improves the overall stability of the equipment when operating at ultra-high-rise buildings, reduces the risk of measurement errors caused by equipment shaking, ensures the accuracy and consistency of measurement data, and improves the efficiency and quality of engineering surveying.

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Abstract

The invention belongs to the technical field of building measurement, and particularly relates to super high-rise building engineering measurement equipment which comprises an assembly frame body, a roller shutter motor is fixedly installed at the bottom of the back face of the assembly frame body, a belt set is fixedly installed at the output end of one side of the roller shutter motor, and an attaching plate wheel is fixed to the surface of one side of the belt set. One side of the attaching plate wheel is clamped into the inner side wall of the assembly frame body in a sliding mode, the height gauge shell is fixedly installed on the front face of the attaching plate wheel, multi-angle rotation can be achieved through the spherical connector, the installation adaptability of equipment in the complex super high-rise environment is enhanced, the damping spring can effectively buffer external vibration, interference of vibration on the measurement precision is avoided, and the measurement accuracy is improved. Meanwhile, through the combination of the threaded rod, the nut and the clamping pressing plate, double fixation and reinforcement are conducted on the equipment from the transverse direction and the angle of connection with an external supporting structure, the overall stability of the equipment during super high-rise operation is improved, and the risk of measurement errors caused by equipment shaking is reduced.
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Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of building surveying, and in particular relates to a super high-rise building engineering surveying device. BACKGROUND

[0002] Super high-rise buildings play a key role in modern urban construction, and their construction involves complex structural design and construction. Precise engineering surveying is the core foundation for the smooth construction of super high-rise buildings and ensures the safety and quality of the structure. It can provide accurate data for the verticality control of the building, component installation positioning, and settlement monitoring, and ensure the precise docking of each part during the construction process and the long-term safety and stability after completion, which has a decisive influence on the construction quality and service life of super high-rise buildings.

[0003] A Chinese invention patent with the publication number CN112161548A discloses a super high-rise building engineering surveying device, which relates to the technical field of building surveying. It solves the problem that the original measuring method cannot select surveying nodes when measuring the height and corners of the indoor space, resulting in large measurement height errors. The super high-rise building engineering surveying device includes a driven mechanism, an adjusting mechanism, a limiting mechanism, and a lifting mechanism. The driven mechanism is rotationally connected inside the frame mechanism. The adjusting mechanism is meshed with the left side of the bottom of the driven mechanism, and is rotationally connected at the bottom of the frame mechanism. The worker rotates the adjusting disc at the front end of the clutch, and the clutch slot clamps and fixes the adjusting rod. The worker confirms the position of the lifting frame, and collects the indoor height information through the support plate scale.

[0004] However, the above-mentioned technology often has the following defects: During the construction and use of super high-rise buildings, they may sway due to wind, earthquakes, and other factors. The above-mentioned device is difficult to accurately capture the instantaneous deformation of the building in such dynamic environments, resulting in shaking of the measurement results, which further adversely affects the measurement accuracy.

[0005] Therefore, the present application provides a super high-rise building engineering surveying device. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a high-rise building engineering measurement device, including an assembly frame. A roller shutter motor is fixedly installed at the bottom back of the assembly frame. A belt assembly is fixedly installed at one output end of the roller shutter motor. A bonding plate wheel is fixedly installed on one side surface of the belt assembly. One side of the bonding plate wheel is slidably engaged with the inner side wall of the assembly frame. A height measuring instrument housing is fixedly installed on the front of the bonding plate wheel. A side connecting plate is fixedly installed at the bottom of the inner side wall of the height measuring instrument housing by bolts. A support base is fixedly installed on the lower surface of the side connecting plate. A cavity is formed in the middle of one side surface of the support base. An ear rest is provided on the bottom end face of the support base. A stabilizing component is connected through the upper surface of the ear rest. The stabilizing component includes a compression rod that is connected through the surface of the ear rest. A spherical connector is provided at the top of the compression rod. A shaft head is provided at the end of the compression rod away from the spherical connector. A damping spring is sleeved on the outer arc surface of the compression rod. One end of the damping spring is fixedly installed on the bottom surface of the ear rest.

[0008] The spherical connector has a threaded hole on one side of its outer arc surface, and a threaded rod is connected inside the threaded hole of the spherical connector. There are two spherical connectors, which are symmetrically distributed with the support base as the center point.

[0009] Both ends of the threaded rod penetrate to the surface of the two spherical connectors, and nuts are connected to both ends of the threaded rod penetrating the spherical connectors.

[0010] A clamping plate is movably connected to the shaft at one end of the compression rod via a rotating shaft. A crossbeam is provided on one side of the upper surface of the clamping plate, and the lower surface of the crossbeam is placed at one edge of the supporting base.

[0011] A connecting shaft is connected through a cavity on one side of the support base. A locking assembly is sleeved on the outer arc surface of the connecting shaft. The locking assembly includes a hanging arm sleeved on the outer arc surface of the connecting shaft. A swing arm is movably connected to the side surface of the hanging arm away from the connecting shaft via a rotating shaft.

[0012] A rod A is movably connected to one side surface of the swing arm. A gear A is connected to the outer arc surface of the rod A. A gear B is connected to the outer arc surface of the gear A through sawtooth meshing. A hinged side beam is fixedly installed at both ends of the connecting shaft through the hanging arm.

[0013] One side of the gear B is movably connected to the surface of the hinge side beam. The hinge side beam is provided with a locking support plate on the side near the gear A. The outer arc surface of the locking support plate is provided with a toothed end.

[0014] The protruding tooth end of the outer arc surface of the locking support plate is movably engaged with gear A. The upper surface of the locking support plate is provided with a groove, and a rocker plate overlaps in the groove on the surface of the locking support plate.

[0015] The bottom surface of the rocker is provided with a through hole, and a tension spring is connected inside the through hole. The end of the tension spring away from the rocker is connected to the surface of the hinge side beam, and the inner surface of the hinge side beam abuts against the surface of the height measuring instrument housing.

[0016] The beneficial effects of this invention are as follows: 1. The ball joint allows for multi-angle rotation, enhancing the equipment's adaptability to complex ultra-high-rise environments. The damping spring effectively buffers external vibrations, preventing them from interfering with measurement accuracy and ensuring the accuracy of measurement data. Meanwhile, the combination of the threaded rod, nut, and clamping plate provides double reinforcement of the equipment from both lateral and external support structure perspectives, improving the overall stability of the equipment during ultra-high-rise operations and reducing the risk of measurement errors caused by equipment shaking.

[0017] 2. The gear transmission provides precise feedback on the height gauge angle adjustment, ensuring the accuracy of the angle adjustment and making the measured angle meet engineering requirements. The locking structure, consisting of a locking plate, rocker plate, and tension spring, can stably and reliably fix the height gauge angle, preventing angle deviation during measurement, ensuring the continuity and accuracy of measurement work, and improving the efficiency and quality of engineering measurement. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is an overall three-dimensional view of the super high-rise building engineering measurement of this invention; Figure 2 This is a side view of the roller shutter motor of the assembly frame of the present invention; Figure 3 This is a structural diagram of the stabilizing component and the locking component in this invention. Figure 4 This is a front view schematic diagram of the supporting base frame in this invention; Figure 5 This is a schematic diagram of the clamping and pressing plate in this invention; Figure 6 This is a top view of the locking component in this invention. Figure 7 This is a schematic diagram of the disassembled structure of the locking support plate in this invention.

[0020] In the diagram: 1. Assembly frame; 2. Roller shutter motor; 3. Belt assembly; 4. Fitting plate wheel; 5. Altimeter housing; 6. Side connecting plate; 7. Support frame; 701. Cavity; 702. Ear rest; 8. Stabilizing component; 81. Compression rod; 82. Ball joint; 83. Damping spring; 84. Threaded rod; 85. Nut; 86. Clamping plate; 861. Crossbeam; 9. Connecting shaft; 10. Locking assembly; 101. Hanging arm; 102. Swing arm; 103. Gear A; 104. Gear B; 105. Hinge side beam; 106. Locking support plate; 1061. Toothed end; 1062. Groove; 107. Rocker; 108. Tension spring. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, this embodiment of the invention includes an assembly frame 1. A roller shutter motor 2 is fixedly installed on the bottom back of the assembly frame 1. A belt assembly 3 is fixedly installed on one output end of the roller shutter motor 2. A bonding plate wheel 4 is fixedly fixed on one side surface of the belt assembly 3. One side of the bonding plate wheel 4 is slidably engaged with the inner side wall of the assembly frame 1. A height measuring instrument housing 5 is fixedly installed on the front of the bonding plate wheel 4. A side connecting plate 6 is fixedly installed on the bottom inner side wall of the height measuring instrument housing 5 by bolts. A support base 7 is fixedly installed on the lower surface of the side connecting plate 6. A cavity 701 is provided in the middle of one side surface of the support base 7. An ear cup 702 is provided on the bottom end face of the support base 7. A stabilizing component 8 is connected through the upper surface of the ear cup 702. The stabilizing component 8 includes a compression rod 81 that is connected through the surface of the ear cup 702. A ball joint 82 is provided at the top of the compression rod 81. A shaft head is provided at the end of the compression rod 81 away from the ball joint 82. A damping spring 83 is sleeved on the outer arc surface of the compression rod 81. One end of the damping spring 83 is fixedly installed on the bottom surface of the ear cup 702.

[0023] A threaded hole is provided on one side of the outer arc surface of the ball connector 82. A threaded rod 84 is connected to the threaded hole of the ball connector 82. There are two ball connectors 82, which are symmetrically distributed with the support base 7 as the center point. Both ends of the threaded rod 84 penetrate to the surface of the two ball connectors 82. Nuts 85 are connected to both ends of the threaded rod 84 penetrating the ball connector 82. A clamping plate 86 is movably connected to the shaft of one end of the compression rod 81 through a rotating shaft. A crossbeam 861 is provided on one side of the upper surface of the clamping plate 86. The lower surface of the crossbeam 861 is placed at one edge of the support base 7.

[0024] The bottom of the inner wall of the height measuring instrument housing 5 is fixed to the side connecting plate 6 by bolts. The support base 7 is installed on the lower surface of the side connecting plate 6 to provide a mounting carrier for the stabilizing component. The cavity 701 in the middle of one side surface of the support base 7 is used for the subsequent connection of the locking component 10. The ear bracket 702 on the bottom end face provides a through mounting point for the stabilizing component 8. The compression rod 81 of the stabilizing component 8 passes through the ear bracket 702. The ball joint 82 at its top can rotate at multiple angles to adapt to the mounting surface of different inclinations of super high-rise buildings. The damping spring 83 sleeved on the outer arc surface of the compression rod 81 is fixed at one end to the bottom surface of the ear bracket 702. When the equipment is subjected to external vibration, the damping spring 83 can effectively buffer the impact force through its own compression and rebound, maintain the stability of the height measuring instrument housing 5, and avoid the vibration from affecting the measurement accuracy.

[0025] Two spherical connectors 82 are symmetrically distributed around the support base 7. A threaded rod 84 passes through the two spherical connectors 82 and is locked at both ends by nuts 85 to form a laterally stable structure to prevent the support base 7 from shifting laterally. At the same time, the shaft at one end of the compression rod 81 is movably connected to the clamping plate 86 through a rotating shaft. The crossbeam 861 on one side of the upper surface of the clamping plate 86 is placed at one edge of the support base 7. By adjusting the angle of the clamping plate 86, the equipment can be firmly fixed to the external support structure, further enhancing the overall stability of the equipment.

[0026] like Figure 4 , Figure 6 and Figure 7 As shown, a connecting shaft 9 is connected through a cavity 701 on one side of the support base 7. A locking assembly 10 is sleeved on the outer arc surface of the connecting shaft 9. The locking assembly 10 includes a hanging arm 101 sleeved on the outer arc surface of the connecting shaft 9. A swing arm 102 is movably connected to the side surface of the hanging arm 101 away from the connected connecting shaft 9 via a rotating shaft.

[0027] A rod A is movably connected to one side surface of the swing arm 102. A gear A103 is connected to the outer arc surface of the rod A. A gear B104 is connected to the outer arc surface of the gear A103 through sawtooth meshing. A connecting shaft 9 passes through both ends of the hanging arm 101 and is fixedly installed with a hinge side beam 105. One side of the gear B104 is movably connected to the surface of the hinge side beam 105. A locking support plate 106 is provided on the side of the hinge side beam 105 near the gear A103. The outer arc surface of the locking support plate 106 is provided with a toothed end 106. 1. The toothed end 1061 of the outer arc surface of the locking support plate 106 is movably engaged with the gear A103. The upper surface of the locking support plate 106 is provided with a groove 1062. A rocker plate 107 is attached to the groove 1062 on the surface of the locking support plate 106. The bottom surface of the rocker plate 107 is provided with a through hole. A tension spring 108 is connected in the through hole on the bottom surface of the rocker plate 107. The end of the tension spring 108 away from the rocker plate 107 is connected to the surface of the hinge side beam 105. The inner surface of the hinge side beam 105 abuts against the surface of the height measuring instrument housing 5.

[0028] A connecting shaft 9 passes through a cavity 701 on one side of the support base 7. The hanging arm 101 of the locking assembly 10 is sleeved on the outer arc surface of the connecting shaft 9. The side surface of the hanging arm 101 away from the connecting shaft 9 is movably connected to a swing arm 102 via a rotating shaft. When the swing arm 102 is rotated, it can drive the height gauge housing 5 to rotate around the connecting shaft 9, thereby adjusting the measuring angle of the height gauge, such as the horizontal measuring angle or the tilt measuring angle. The rod A, which is movably connected to one side surface of the swing arm 102, is connected to a gear A103 on its outer arc surface. The outer arc surface of gear A103 meshes with gear B104 through sawtooth. When the swing arm 102 rotates, the rod A drives gear A103 to rotate, and then drives gear B104 to rotate synchronously through the meshing relationship. Since the gear transmission has a fixed transmission ratio, the adjustment amount of the height gauge angle can be accurately fed back through the rotation amplitude of the gear, ensuring the accuracy of the angle adjustment.

[0029] The connecting shaft 9 passes through both ends of the hanging arm 101 and is fixedly installed with the hinge side beam 105. The inner surface of the hinge side beam 105 abuts against the surface of the height measuring instrument housing 5, providing support for the locking structure. A locking support plate 106 is provided on the side of the hinge side beam 105 near the gear A103. The toothed end 1061 of the outer arc surface of the locking support plate 106 can be movably engaged with the gear A103 after the height measuring instrument is adjusted to the target angle, directly restricting the rotation of the gear A103, thereby fixing the angle between the swing arm 102 and the height measuring instrument housing 5. A rocker arm 107 overlaps in the groove 1062 on the upper surface of the locking support plate 106. A tension spring 108 is connected inside the bottom through hole. The end of the tension spring 108 away from the rocker arm 107 is connected to the surface of the hinge side beam 105. The tension of the tension spring 108 causes the rocker arm 107 to press against the locking support plate 106, ensuring that the toothed end 1061 stably engages with the gear A103 and remains locked. When the angle needs to be adjusted, press down on one end of the rocker arm 107 to overcome the tension of the tension spring 108, causing the locking support plate 106 to rise and disengage the toothed end 1061 from the gear A103. Then, the rocker arm 102 can be rotated again to adjust the angle. After the adjustment is completed, release the rocker arm 107, the tension spring 108 returns to its original position, and locking is achieved again.

[0030] Specifically, when the equipment is working, the roller shutter motor 2 can be started according to the height measurement requirements of the super high-rise building. Its output end drives the belt assembly 3 to rotate. Since the bonding plate wheel 4 is fixed on the surface of the belt assembly 3 and slidably engaged with the inner side wall of the assembly frame 1, the rotation of the belt assembly 3 will drive the bonding plate wheel 4 to slide up and down along the inner side wall of the assembly frame 1. The height measuring instrument housing 5 is fixed on the front of the bonding plate wheel 4, so the height measuring instrument housing 5 moves synchronously with the bonding plate wheel 4 to realize the adjustment of the measurement height.

[0031] In terms of stability support, the bottom of the inner wall of the height measuring instrument housing 5 is fixed with bolts to the side connecting plate 6. The support base 7 is installed on the lower surface of the side connecting plate 6 to provide a mounting carrier for the stabilizing component 8. The cavity 701 of the support base 7 is used for the subsequent connection of the locking component 10. The ear bracket 702 provides a through mounting point for the stabilizing component 8. The compression rod 81 of the stabilizing component 8 passes through the ear bracket 702. The ball joint 82 at the top can rotate at multiple angles to adapt to different inclined mounting surfaces. The damping spring 83 sleeved on the outer arc surface of the compression rod 81 is fixed at one end to the bottom surface of the ear bracket 702, which can buffer external vibrations and keep the height measuring instrument housing 5 stable. At the same time, the two ball joints 82 are symmetrically distributed with the support base 7 as the center. The threaded rod 84 passes through and is locked by the nut 85 to form a lateral stabilizing structure. The clamping pressure plate 86 is movably connected to the shaft head of one end of the compression rod 81. Its crossbeam 861 is placed on one side edge of the support base 7. Adjusting the angle of the clamping pressure plate 86 can fix the equipment on it, further enhancing the stability of the support base 7.

[0032] For angle locking, a connecting shaft 9 passes through the cavity 701 of the support base 7. The hanging arm 101 of the locking assembly 10 is sleeved on the connecting shaft 9. The hanging arm 101 is connected to the swing arm 102 through a rotating shaft. Rotating the swing arm 102 can drive the height measuring instrument housing 5 to rotate around the connecting shaft 9 to adjust the measurement angle. The gear A103 connected to the rod A on one side of the swing arm 102 meshes with the gear B104. When the swing arm 102 rotates, the gear transmission can accurately feedback the angle adjustment amount. When the target angle is adjusted, the outer arc surface convex tooth end 1061 of the locking support plate 106 on the hinge side beam 105 engages with the gear A103 to restrict its rotation and fix the angle. The rocker plate 107 on the locking support plate 106 presses the locking support plate 106 through the tension spring 108 to maintain the locked state. If the angle needs to be adjusted, press one end of the rocker 107 to overcome the tension of the tension spring 108 and disengage the toothed end 1061 from the gear A103. Then rotate the swing arm 102. After adjustment, release the rocker 107, and the tension spring 108 will reset and lock again.

[0033] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0034] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surveying device for super high-rise building engineering, characterized in that: The assembly includes a frame (1), a roller shutter motor (2) is fixedly installed on the bottom back of the frame (1), a belt assembly (3) is fixedly installed on one side of the output end of the roller shutter motor (2), a bonding plate wheel (4) is fixedly fixed on one side surface of the belt assembly (3), and one side of the bonding plate wheel (4) is slidably snapped into the inner wall of the frame (1). A height measuring instrument housing (5) is fixedly installed on the front of the bonding plate wheel (4), a side connecting plate (6) is fixedly installed on the bottom of the inner wall of the height measuring instrument housing (5) by bolts, a support base (7) is fixedly installed on the lower surface of the side connecting plate (6), a cavity (701) is opened in the middle of one side surface of the support base (7), an ear rest (702) is provided on the bottom end face of the support base (7), and a stabilizing component (8) is connected through the upper surface of the ear rest (702). The stabilizing component (8) includes a compression rod (81) that extends through and connects to the surface of the ear cup (702). The top end of the compression rod (81) is provided with a ball joint (82). The end of the compression rod (81) away from the ball joint (82) is provided with a shaft head. A damping spring (83) is sleeved on the outer arc surface of the compression rod (81). One end of the damping spring (83) is fixedly installed on the bottom surface of the ear cup (702).

2. The surveying equipment for super high-rise building engineering according to claim 1, characterized in that: The spherical connector (82) has a threaded hole on one side of its outer arc surface. A threaded rod (84) is connected inside the threaded hole of the spherical connector (82). There are two spherical connectors (82), which are symmetrically distributed with the support base (7) as the center point.

3. The surveying equipment for super high-rise building engineering according to claim 2, characterized in that: Both ends of the threaded rod (84) penetrate to the surface of the two ball joints (82), and both ends of the threaded rod (84) penetrating the ball joints (82) are connected to nuts (85).

4. The surveying equipment for super high-rise building engineering according to claim 3, characterized in that: The compression rod (81) has a clamping plate (86) movably connected to the shaft head at one end via a rotating shaft. A crossbeam (861) is provided on one side of the upper surface of the clamping plate (86), and the lower surface of the crossbeam (861) is placed at one edge of the support base (7).

5. The surveying equipment for super high-rise building engineering according to claim 1, characterized in that: A connecting shaft (9) is connected through a cavity (701) on one side of the support base (7). A locking assembly (10) is sleeved on the outer arc surface of the connecting shaft (9). The locking assembly (10) includes a hanging arm (101) sleeved on the outer arc surface of the connecting shaft (9). A swing arm (102) is movably connected to the side surface of the hanging arm (101) away from the connected connecting shaft (9) through a rotating shaft.

6. The surveying equipment for super high-rise building engineering according to claim 5, characterized in that: A rod A is movably connected to one side surface of the swing arm (102), and a gear A (103) is connected to the outer arc surface of the rod A. A gear B (104) is connected to the outer arc surface of the gear A (103) through sawtooth meshing. A hinged side beam (105) is fixedly installed at both ends of the connecting shaft (9) through the hanging arm (101).

7. A surveying device for super high-rise building engineering according to claim 6, characterized in that: One side of the gear B (104) is movably connected to the surface of the hinge side beam (105). The hinge side beam (105) is provided with a locking support plate (106) on the side near the gear A (103). The outer arc surface of the locking support plate (106) is provided with a toothed end (1061).

8. A surveying device for super high-rise building engineering according to claim 7, characterized in that: The toothed end (1061) of the outer arc surface of the locking support plate (106) is movably engaged with the gear A (103). The upper surface of the locking support plate (106) is provided with a groove (1062), and a rocker plate (107) is attached to the groove (1062) on the surface of the locking support plate (106).

9. A surveying device for super high-rise building engineering according to claim 8, characterized in that: The bottom surface of the rocker (107) is provided with a through hole, and a tension spring (108) is connected inside the through hole of the bottom surface of the rocker (107). The end of the tension spring (108) away from the rocker (107) is connected to the surface of the hinge side beam (105), and the inner surface of the hinge side beam (105) abuts against the surface of the height measuring instrument housing (5).

Citation Information

Patent Citations

  • Super high-rise building engineering measuring equipment

    CN112161548A