A measuring device for construction engineering

Abstract

This invention relates to the field of building engineering technology, specifically disclosing a measuring device for building engineering, comprising: a support connecting frame and a protective box, wherein the protective box is fixedly connected to one side of the support connecting frame. This invention has at least the following beneficial effects: Through the provided telescopic mechanism, the grip length can be flexibly adjusted according to the user's height, measurement habits, etc., thereby reducing fatigue during prolonged operation and adapting to operational needs under different working conditions, improving the device's versatility and ease of operation; Addressing the problems of slippage, trajectory deviation, and counting distortion caused by changes in the push rod angle during uphill and downhill measurement using existing distance measuring wheels, an angle measurement and adjustment mechanism is provided. This mechanism can detect the bending angle of the telescopic mechanism in real time and adaptively adjust the measurement standard, ensuring stable grounding of the moving wheel and accurate rolling trajectory during uphill and downhill measurement, effectively avoiding problems such as underestimation of measurement results and poor repeatability, and improving the accuracy of uphill and downhill measurement.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically to a measuring device for building engineering. Background Technology

[0002] Architectural engineering refers to the design, construction, installation, maintenance, and related management activities of various buildings and structures for human living, production, scientific research, office, and other purposes. It covers the entire process from project planning, surveying, design, construction to completion acceptance, operation and maintenance, and is an important branch of civil engineering.

[0003] Common surveying equipment used in construction engineering includes the following categories: level instruments, theodolites, total stations, laser rangefinders, GNSS / RTK surveying systems, 3D laser scanners, plumb bobs, steel tape measures, distance measuring wheels, and leveling rods, among other traditional tools. Among these, the portable tool using a distance measuring wheel, which measures ground distance by rolling the wheel, is widely used in construction engineering, road engineering, landscaping, farmland surveying, and accident investigation. However, in mountainous environments, when encountering small stones, cracks, or uneven surfaces, the wheel may "bounce," momentarily leaving the ground and not being recorded as actual rolling. When pushing the distance measuring wheel uphill or downhill, the angle between the telescopic push rod and the moving wheel changes. The rotation angle of the telescopic push rod directly affects the grounding state, rolling purity, and trajectory of the distance measuring wheel. In uphill or downhill environments, improper push rod angles can cause slippage, bouncing, trajectory deviation, and counting distortion, ultimately leading to generally underestimating and poor repeatability of measurement results. Therefore, we propose a surveying device for construction engineering. Summary of the Invention

[0004] The purpose of this invention is to provide a measuring device for construction engineering, to solve the problems mentioned in the background art, namely the portable tool that measures ground distance by rolling the measuring wheel when using a distance measuring wheel. This tool is widely used in construction engineering, road engineering, landscaping, farmland surveying, accident investigation and other scenarios. In mountainous environments, the distance measuring wheel may "bounce" when encountering small stones, cracks or uneven road surfaces, causing it to momentarily leave the ground and not be counted as actual rolling. When pushing the distance measuring wheel uphill or downhill, the angle between the telescopic push rod and the moving wheel will change. The flip angle of the telescopic push rod directly affects the grounding state, rolling purity and trajectory of the distance measuring wheel. In uphill or downhill environments, an improper push rod angle can cause slippage, bouncing, trajectory deviation and counting distortion, ultimately leading to the problem that the measurement results are generally too small and have poor repeatability.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a measuring device for building engineering, comprising: a support connecting frame and a protective box, wherein the protective box is fixedly connected to one side of the support connecting frame;

[0006] It also includes: a telescopic mechanism, which is mounted on the support connecting frame and is used to adjust the grip length position according to the user's measurement work;

[0007] Angle measurement and adjustment mechanism, which is installed inside the protective box, is used to adaptively adjust the measurement standard according to the bending angle of the telescopic mechanism when measuring uphill and downhill.

[0008] The vibration measurement and adjustment mechanism is housed inside the protective box. This mechanism is used to cancel the measurement of a section of road when the vibration from an uneven surface exceeds a set threshold.

[0009] The internal rotating connection of the support frame has two rotating shafts, and a movable wheel is fixedly connected between the two rotating shafts.

[0010] A counter is installed on one side of the support frame.

[0011] The telescopic mechanism includes a fixed cylinder that is fixedly connected to the top of the support frame. The fixed cylinder has a rectangular groove inside. A rectangular block is slidably connected to the inner wall of the rectangular groove. A threaded rod is fixedly connected to the top of the rectangular block. A rotating threaded sleeve is threadedly connected to the outer side of the threaded rod. The rotating threaded sleeve is rotatably connected to the fixed cylinder.

[0012] A handle is fixedly connected to the top of the threaded rod.

[0013] The angle measurement and adjustment mechanism includes an insulating box fixedly connected to the inside of the protective box. A gear is fixedly connected to one side of one of the rotating shafts, a rack is meshed with one side of the gear, and a first conductive iron block is fixedly connected to one side of the rack. A first motor is fixedly connected to the bottom inside the protective box, a reciprocating screw is fixedly connected to the output end of the first motor, an insulating block is provided on the outside of the reciprocating screw, and a second conductive iron block is fixedly connected to one side of the insulating block. The second conductive iron block is located inside the insulating box.

[0014] The protective box has a first limiting rod fixedly connected to its inner side, and the insulating block is slidably connected to the first limiting rod.

[0015] The vibration measurement and adjustment mechanism includes a second motor fixedly connected to the bottom of the inner side of the protective box. The output end of the second motor is fixedly connected to two threaded blocks on the outside of a bidirectional lead screw. A tactile switch is fixedly connected to each of the two threaded blocks on opposite sides.

[0016] The protective box has a fixed column on one side, and a detection cylinder is fixedly connected inside the fixed column. The detection cylinder has a sliding groove inside, and two sliders are slidably connected to the inner wall of the groove. Springs are fixedly connected to one side of the two sliders and one side of the inner wall of the groove. A contact rod is fixedly connected to one side of the slider, and the contact rod is located inside the spring. A vibrating ball is set in the groove and is located between the two sliders.

[0017] Among them, the two threaded blocks are internally slidably connected with a second limiting rod, which is fixedly connected to the protective box.

[0018] This invention has at least the following beneficial effects:

[0019] The telescopic mechanism allows for flexible adjustment of the grip length based on the user's height and measurement habits, reducing fatigue during prolonged operation and adapting to different working conditions, thus enhancing the equipment's versatility and ease of use. Addressing issues such as slippage, trajectory deviation, and counting distortion caused by changes in the push rod angle during uphill and downhill measurements using existing distance measuring wheels, an angle measurement and adjustment mechanism is incorporated. This mechanism can detect the bending angle of the telescopic mechanism in real time and adaptively adjust the measurement standard, ensuring stable grounding of the moving wheel and accurate rolling trajectory during uphill and downhill measurements. This effectively avoids underestimating measurement results and poor repeatability, improving the performance of uphill and downhill measurements. Measurement accuracy: The vibration measurement and adjustment mechanism can accurately detect the vibration amplitude generated by uneven road surfaces. When the vibration exceeds the set threshold, the measurement data of the corresponding segment is automatically canceled, avoiding the omission of distance or inaccurate counting caused by the bouncing or detachment of the moving wheel from the ground. This avoids measurement errors caused by vibration at the source, ensuring the authenticity and reliability of the measurement data and providing accurate basic data support for construction engineering. Through the cooperation of the above mechanisms, the shortcomings of existing distance measuring wheels in terms of poor measurement accuracy under complex working conditions can be solved. It can be widely used in measurement work in multiple fields such as construction engineering, road engineering, and landscaping, making it widely applicable. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the telescopic mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the supporting connecting frame, counter, and moving wheels of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the protective box of the present invention;

[0024] Figure 5 This is a schematic diagram of the angle measurement and adjustment mechanism of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the shaft, gear, and rack of the present invention;

[0026] Figure 7 This is a schematic diagram of the vibration measurement and adjustment mechanism of the present invention;

[0027] Figure 8 This is a schematic diagram of the internal structure of the detection cylinder of the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of the rotating shaft and the moving wheel of the present invention.

[0029] In the diagram: 1. Support connecting frame; 2. Protective box; 3. Telescopic mechanism; 31. Fixed cylinder; 32. Rectangular groove; 33. Rectangular block; 34. Threaded rod; 35. Rotating threaded sleeve; 4. Angle measurement and adjustment mechanism; 41. Insulation box; 42. Gear; 43. Rack; 44. First conductive iron block; 45. First motor; 46. Reciprocating lead screw; 47. Insulation block; 48. Second conductive iron block; 49. First limit rod; 5. Vibration measurement and adjustment mechanism; 51. Second motor; 52. Bidirectional lead screw; 53. Threaded block; 54. Tactile switch; 55. Second limit rod; 56. Fixed column; 57. Detection cylinder; 58. Slide groove; 59. Slider; 510. Contact rod; 511. Spring; 512. Vibrating ball; 6. Counter; 7. Rotating shaft; 8. Moving wheel. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1

[0032] Please see Figures 1 to 9 The present invention provides a technical solution: a measuring device for building engineering, comprising: a support connecting frame 1 and a protective box 2, wherein the protective box 2 is fixedly connected to one side of the support connecting frame 1;

[0033] It also includes: a telescopic mechanism 3, which is mounted on the support connecting frame 1 and is used to adjust the grip length position according to the user's measurement work;

[0034] Angle measurement and adjustment mechanism 4 is installed inside the protective box 2. The angle measurement and adjustment mechanism 4 is used to adaptively adjust the measurement standard according to the bending angle of the telescopic mechanism 3 when measuring uphill and downhill.

[0035] Vibration measurement and adjustment mechanism 5 is installed inside the protective box 2. Vibration measurement and adjustment mechanism 5 is used to cancel the measurement of this section when the vibration of the uneven road surface exceeds the set threshold during measurement.

[0036] The telescopic mechanism 3, as described above, allows for flexible adjustment of the grip length based on the user's height and measurement habits, thereby reducing fatigue during prolonged operation. It also adapts to different operating conditions, enhancing the equipment's versatility and ease of use. Addressing issues such as slippage, trajectory deviation, and counting distortion caused by changes in the push rod angle during uphill and downhill measurements using existing distance measuring wheels, an angle measurement and adjustment mechanism 4 is incorporated. This mechanism detects the bending angle of the telescopic mechanism 3 in real time and adaptively adjusts the measurement standard, ensuring stable grounding of the moving wheel 8 and accurate rolling trajectory during uphill and downhill measurements. This effectively avoids problems such as underestimation of measurement results and poor repeatability, improving the overall performance. Downhill measurement accuracy: The vibration measurement and adjustment mechanism 5 can accurately detect the vibration amplitude generated by uneven road surfaces. When the vibration exceeds the set threshold, the measurement data of the corresponding segment is automatically canceled, avoiding the omission of distance or inaccurate counting caused by the bouncing or detachment of the moving wheel 8 from the ground. It avoids measurement errors caused by vibration from the source, ensuring the authenticity and reliability of the measurement data, and providing accurate basic data support for construction engineering. Through the cooperation of the above mechanisms, the defect of poor measurement accuracy of existing distance measuring wheels under complex working conditions can be solved. It can be widely used in measurement work in multiple fields such as construction engineering, road engineering, and landscaping, making it widely applicable.

[0037] The angle measurement and adjustment mechanism 4 includes an insulating box 41 fixedly connected to the inside of the protective box 2. A gear 42 is fixedly connected to one side of a rotating shaft 7. A rack 43 is meshed with one side of the gear 42. A first conductive iron block 44 is fixedly connected to one side of the rack 43. A first motor 45 is fixedly connected to the bottom inside the protective box 2. A reciprocating screw 46 is fixedly connected to the output end of the first motor 45. An insulating block 47 is provided on the outside of the reciprocating screw 46. A second conductive iron block 48 is fixedly connected to one side of the insulating block 47. The second conductive iron block 48 is located inside the insulating box 41. A first limiting rod 49 is fixedly connected to the inside of the protective box 2. The insulating block 47 and the first limiting rod 49 are slidably connected.

[0038] In use, the angle measurement and adjustment mechanism 4 includes an insulating box 41, a gear 42, a rack 43, a first conductive iron block 44, a first motor 45, a reciprocating lead screw 46, an insulating block 47, a second conductive iron block 48, and a first limit rod 49. The insulating box 41 is made of flame-retardant insulating plastic and is bolted to the inner wall of the protective box 2 to prevent short circuits between conductive components and the protective box 2, ensuring circuit safety. The gear 42 is fixed to one side of one of the rotating shafts 7 via a flat key. The gear teeth of the gear 42 are high-frequency quenched, resulting in high hardness, strong wear resistance, and extended service life. The rack 43 meshes with the gear 42, with small tooth clearance and high transmission accuracy. The first conductive iron block 44 is bonded to one side of the rack 43. The surface of the first conductive iron block 44 is rust-free, ensuring good conductivity. The first motor 45 is a stepper motor, fixed to the bottom of the inner side of the protective box 2 via a motor mount. Stepper motors have the advantages of high control accuracy and fast response speed, allowing precise control of the reciprocating lead screw 46. The rotation angle of 6; the reciprocating screw 46 is fixedly connected to the output end of the first motor 45 through a coupling. The thread of the reciprocating screw 46 is a bidirectional thread, which can realize the reciprocating linear motion of the insulating block 47; the insulating block 47 is made of insulating plastic material, and its inner side is machined with a threaded hole that matches the reciprocating screw 46, and a through hole that matches the first limit rod 49 is also provided; the second conductive iron block 48 is fixed to one side of the insulating block 47 by bolts and is set opposite to the first conductive iron block 44, with a suitable detection gap reserved between them; the first limit rod 49 is fixed to the inner side of the protective box 2 by brackets at both ends and is set parallel to the reciprocating screw 46. The surface of the first limit rod 49 is polished to reduce friction with the insulating block 47 and ensure the smooth sliding of the insulating block 47;

[0039] When the equipment moves on uphill or downhill sections, the telescopic mechanism 3 bends at a certain angle due to changes in road slope, causing a change in the relative angle between the support frame 1 and the moving wheel 8. At this time, the rolling trajectory of the moving wheel 8 differs from that on a horizontal road surface. If the angle is not adjusted, the measurement data will be distorted. During this process, the rolling of the moving wheel 8 drives the rotating shaft 7 to rotate synchronously. The gear 42 on one side of the rotating shaft 7 rotates with the rotating shaft 7. The gear 42 meshes with the rack 43, driving the rack 43 to move horizontally, which in turn drives the first conductive iron block 44 to move synchronously. The moving distance of the first conductive iron block 44 is related to the rotation angle of the rotating shaft 7, indirectly reflecting the bending angle of the telescopic mechanism 3.

[0040] Simultaneously, the first motor 45 is activated, driving the reciprocating screw 46 to rotate according to the preset control program. Since the insulating block 47 is threadedly connected to the reciprocating screw 46 and slidably connected to the first limiting rod 49 through a through hole, the first limiting rod 49 provides circumferential limitation to the insulating block 47, converting the rotational motion of the reciprocating screw 46 into linear motion of the insulating block 47. This, in turn, drives the second conductive iron block 48 to move horizontally within the insulating box 41. Through the positional coordination of the first conductive iron block 44 and the second conductive iron block 48, the bending angle of the telescopic mechanism 3 can be accurately detected. When the relative position between the two changes, the resistance value in the circuit changes. The control system calculates the bending angle of the telescopic mechanism 3 by collecting the change in resistance value, and then adaptively adjusts the measurement standard based on this angle. That is, by correcting the counting coefficient of the counter 6, the influence of slope changes on the measurement distance is offset, ensuring the accuracy of the uphill and downhill measurement data.

[0041] The vibration measurement and adjustment mechanism 5 includes a second motor 51 fixedly connected to the bottom of the inner side of the protective box 2. The output end of the second motor 51 is fixedly connected to a bidirectional lead screw 52, ​​and two threaded blocks 53 are provided on the outer side. A tactile switch 54 is fixedly connected to the opposite side of the two threaded blocks 53. A fixed column 56 is fixedly connected to one side of the protective box 2. A detection cylinder 57 is fixedly connected inside the fixed column 56. A slide groove 58 is opened inside the detection cylinder 57. Two sliders 59 are slidably connected to the inner wall of the slide groove 58. A spring 511 is fixedly connected to one side of the two sliders 59 and one side of the inner wall of the slide groove 58. A contact rod 510 is fixedly connected to one side of the slider 59. The contact rod 510 is located inside the spring 511. A vibrating ball 512 is provided inside the slide groove 58. The vibrating ball 512 is located between the two sliders 59. A second limiting rod 55 is slidably connected inside the two threaded blocks 53. The second limiting rod 55 is fixedly connected to the protective box 2.

[0042] In use, the vibration measurement and adjustment mechanism 5 includes a second motor 51, a bidirectional lead screw 52, ​​a threaded block 53, a tactile switch 54, a second limit rod 55, a fixed column 56, a detection cylinder 57, a slide groove 58, a slider 59, a contact rod 510, a spring 511, and a vibrating ball 512. The second motor 51 is a servo motor, fixed to the bottom of the inner side of the protective box 2 via a motor mount. The servo motor enables precise rotation control of the bidirectional lead screw 52. The bidirectional lead screw 52 is fixedly connected to the output end of the second motor 51 via a coupling. The two sides of the bidirectional lead screw 52 are machined with threads of opposite directions, which can drive two threaded blocks 53 to move relative to or towards each other. The inner side of the threaded blocks 53 is machined with threaded holes adapted to the bidirectional lead screw 52. A tactile switch 54 is bolted to the opposite side of each of the two threaded blocks 53. The tactile switch 54 is a normally closed switch; when triggered, it sends a signal to the control system. The second limit rod 55 is fixed to the inner side of the protective box 2 via a bracket, and is arranged parallel to the bidirectional lead screw 52. The threaded blocks 53 have through holes adapted to the second limit rod 55, and the two are clearance-fitted, which restricts the rotation of the threaded blocks 53 and ensures their linear motion. The fixing column 56 is welded to one side of the protective box 2, and has a hollow interior. The structure is used to install the detection cylinder 57. The detection cylinder 57 is made of metal and is fixed inside the fixing column 56 by interference fit. The inside of the detection cylinder 57 has a sliding groove 58 along the axial direction. The slider 59 has a rectangular structure and is precisely matched with the size of the sliding groove 58. The two are in clearance fit and can slide smoothly. The contact rod 510 is fixed to one side of the slider 59 by threaded connection. Its axis is parallel to the axis of the sliding groove 58. The end of the contact rod 510 faces the tactile switch 54 and the distance is adjustable. The spring 511 is sleeved on the outside of the contact rod 510. One end abuts against one side of the slider 59 and the other end abuts against one side of the inner wall of the sliding groove 58. The spring 511 is made of stainless steel and has a stable elastic coefficient, which can realize the automatic reset of the slider 59. The vibrating ball 512 is made of high-density metal ball with a diameter slightly smaller than the inner diameter of the sliding groove 58. It can roll freely in the sliding groove 58. Its weight is precisely calculated to ensure that the slider 59 can be triggered to move under the set vibration threshold.

[0043] Before the measurement begins, the user can set the vibration threshold through the control system according to the required smoothness of the road surface. The specific setting process is as follows: The second motor 51 is started, driving the bidirectional lead screw 52 to rotate. Since the threads on both sides of the bidirectional lead screw 52 rotate in opposite directions, and the two threaded blocks 53 are threadedly connected to the bidirectional lead screw 52 and slidably connected to the second limit rod 55 through a through hole, the second limit rod 55 restricts the rotation of the threaded blocks 53. Therefore, the rotation of the bidirectional lead screw 52 will cause the two threaded blocks 53 to move relative to or towards each other: when the threaded blocks 53 move relative to each other, the distance between the two tactile switches 54 decreases, and the vibration threshold decreases; when the threaded blocks 53 move towards each other, the distance between the two tactile switches 54 increases, and the vibration threshold increases. After adjusting to a suitable distance, the second motor 51 is turned off. The self-locking characteristic of the threads of the bidirectional lead screw 52 allows the threaded blocks 53 to remain in their current position, completing the setting of the vibration threshold.

[0044] During measurement, when the equipment encounters uneven road surfaces and vibrates, the vibration is transmitted to the fixed column 56 inside the protective box 2, and then to the detection cylinder 57. Under the influence of vibration, the vibrating ball 512 inside the detection cylinder 57 rolls along the slide groove 58 to one or both sides, impacting the corresponding slider 59. After being impacted, the slider 59 moves along the slide groove 58 towards the tactile switch 54 and compresses the spring 511. When the vibration amplitude is small, the impact force of the vibrating ball 512 is insufficient, the slider 59 moves a limited distance, and the touch rod 510 cannot trigger the tactile switch 54, allowing the equipment to record measurement data normally. When the vibration amplitude exceeds the set threshold, the impact force of the vibrating ball 512 is large enough that the slider 59 moves a distance sufficient for the touch rod 510 to contact the tactile switch 54, triggering the tactile switch 54. After the tactile switch 54 is triggered, it sends a signal to the control system, which immediately stops the counter 6 and automatically deletes the measurement data from this period to avoid measurement distortion caused by vibration. When the road surface is restored to a smooth state and the vibration disappears, the spring 511 pushes the slider 59 to reset under the action of elastic force, the contact rod 510 separates from the tactile switch 54, the tactile switch 54 returns to the normally closed state, and the equipment resumes normal measurement.

[0045] Example 2

[0046] like Figures 1 to 9 In this second embodiment, the other structures remain unchanged, but the difference from the first embodiment is:

[0047] The telescopic mechanism 3 includes a fixed cylinder 31 that is fixedly connected to the top of the support connecting frame 1. A rectangular groove 32 is provided inside the fixed cylinder 31. A rectangular block 33 is slidably connected to the inner wall of the rectangular groove 32. A threaded rod 34 is fixedly connected to the top of the rectangular block 33. A rotating threaded sleeve 35 is threadedly connected to the outer side of the threaded rod 34. The rotating threaded sleeve 35 is rotatably connected to the fixed cylinder 31. A handle is fixedly connected to the top of the threaded rod 34.

[0048] In use, the telescopic mechanism 3 includes a fixed cylinder 31, a rectangular groove 32, a rectangular block 33, a threaded rod 34, a rotating threaded sleeve 35, and a handle. The fixed cylinder 31 is fixedly connected to the top of the support frame 1 by welding, which has high connection strength and can ensure structural stability during use. The fixed cylinder 31 has a rectangular groove 32 axially opened inside, and the size of the rectangular groove 32 is precisely matched with the size of the rectangular block 33. The two are in clearance fit, which can not only ensure the smooth sliding of the rectangular block 33, but also restrict its rotation. The rectangular block 33 is fixed to the bottom of the threaded rod 34 by threaded connection, which is firm and not easy to loosen. The outer side of the threaded rod 34 is machined with precision external thread, which is adapted to the internal thread on the inner side of the rotating threaded sleeve 35. The thread precision is high, which can improve the smoothness of adjustment. The rotating threaded sleeve 35 is rotatably connected to the top of the fixed cylinder 31 by radial bearing. The bearing can reduce the friction between the rotating threaded sleeve 35 and the fixed cylinder 31, making it easy for the user to rotate. The top of the threaded rod 34 is fixed with a handle by both adhesive bonding and thread fastening. The handle is made of soft rubber material with anti-slip bumps on the surface, which can not only improve the grip comfort, but also increase the friction between the hand and the handle to prevent slippage during operation.

[0049] The user holds the fixed sleeve 31 with one hand and rotates the threaded sleeve 35 with the other. Since the threaded sleeve 35 is rotatably connected to the fixed sleeve 31 via bearings, it can only rotate on its own. Simultaneously, the rectangular block 33 at the bottom of the threaded rod 34 is embedded in the rectangular groove 32 of the fixed sleeve 31. The rectangular groove 32 circumferentially limits the rectangular block 33, preventing the threaded rod 34 from rotating synchronously with the threaded sleeve 35. Under these conditions, the rotational motion of the threaded sleeve 35 is converted into the linear up-and-down motion of the threaded rod 34 through threaded transmission: when the threaded sleeve 35 is rotated clockwise, the threaded rod 34 moves upward along the rectangular groove 32, causing the handle to rise and increasing the gripping length; when the threaded sleeve 35 is rotated counterclockwise, the threaded rod 34 moves downward along the rectangular groove 32, causing the handle to fall and shortening the gripping length. After adjusting to the appropriate length, the threaded transmission has a self-locking characteristic, allowing the threaded rod 34 to automatically lock without the need for an additional locking mechanism, making operation convenient and efficient.

[0050] The internal rotating connection of the support frame 1 has two rotating shafts 7, and a movable wheel 8 is fixedly connected between the two rotating shafts 7. In use, the two rotating shafts 7 can drive the movable wheel 8 fixedly connected between them to roll, so as to realize the movement of the equipment on the measuring road surface.

[0051] A counter 6 is provided on one side of the support connecting frame 1. When in use, the counter 6 provided on one side of the support connecting frame 1 can be connected to the rotating shaft 7 to record the rolling data of the moving wheel 8 in real time, and then calculate the measurement distance.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A measuring device for construction engineering, characterized in that: include: A support frame and a protective box are provided, wherein the protective box is fixedly connected to one side of the support frame; It also includes: a telescopic mechanism, which is mounted on the support connecting frame and is used to adjust the grip length position according to the user's measurement work; An angle measurement and adjustment mechanism is installed inside a protective box. The angle measurement and adjustment mechanism is used to adaptively adjust the measurement standard according to the bending angle of the telescopic mechanism when measuring uphill and downhill. A vibration measurement and adjustment mechanism is installed inside a protective box. The vibration measurement and adjustment mechanism is used to cancel the measurement when the vibration of the uneven road surface exceeds a set threshold during measurement.

2. The measuring equipment for building engineering according to claim 1, characterized in that: The internal rotatable connection of the support frame has two rotating shafts, and a movable wheel is fixedly connected between the two rotating shafts.

3. The measuring equipment for building engineering according to claim 1, characterized in that: A counter is provided on one side of the support frame.

4. The measuring equipment for building engineering according to claim 1, characterized in that: The telescopic mechanism includes a fixed cylinder that is fixedly connected to the top of the support frame. A rectangular groove is provided inside the fixed cylinder. A rectangular block is slidably connected to the inner wall of the rectangular groove. A threaded rod is fixedly connected to the top of the rectangular block. A rotating threaded sleeve is threadedly connected to the outer side of the threaded rod. The rotating threaded sleeve is rotatably connected to the fixed cylinder.

5. The measuring equipment for building engineering according to claim 4, characterized in that: A handle is fixedly connected to the top of the threaded rod.

6. The measuring equipment for building engineering according to claim 2, characterized in that: The angle measurement and adjustment mechanism includes an insulating box fixedly connected to the inside of the protective box. A gear is fixedly connected to one side of one of the rotating shafts, a rack is meshed with one side of the gear, and a first conductive iron block is fixedly connected to one side of the rack. A first motor is fixedly connected to the bottom of the inside of the protective box. A reciprocating screw is fixedly connected to the output end of the first motor. An insulating block is provided on the outside of the reciprocating screw, and a second conductive iron block is fixedly connected to one side of the insulating block. The second conductive iron block is located inside the insulating box.

7. The measuring equipment for building engineering according to claim 6, characterized in that: A first limiting rod is fixedly connected to the inner side of the protective box, and the insulating block is slidably connected to the first limiting rod.

8. The measuring equipment for building engineering according to claim 1, characterized in that: The vibration measurement and adjustment mechanism includes a second motor fixedly connected to the bottom of the inner side of the protective box. The output end of the second motor is fixedly connected to two threaded blocks on the outside of a bidirectional lead screw. A tactile switch is fixedly connected to each of the two threaded blocks on opposite sides.

9. The measuring equipment for building engineering according to claim 8, characterized in that: A fixed column is fixedly connected to one side of the protective box. A detection cylinder is fixedly connected inside the fixed column. A sliding groove is opened inside the detection cylinder. Two sliders are slidably connected to the inner wall of the sliding groove. A spring is fixedly connected to one side of each slider and one side of the inner wall of the sliding groove. A contact rod is fixedly connected to one side of each slider. The contact rod is located inside the spring. A vibrating ball is set in the sliding groove and is located between the two sliders.

10. The measuring equipment for building engineering according to claim 8, characterized in that: The two threaded blocks are internally slidably connected by a second limiting rod, which is fixedly connected to the protective box.

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