Hand-held measuring assembly for building management

By introducing adjustment and protection components into the handheld measurement unit, the problems of traditional measurement equipment being difficult to accurately align with targets and being easily damaged in complex environments are solved, enabling accurate measurement and equipment protection in diverse scenarios.

CN224162337UActive Publication Date: 2026-04-24刘腾
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
刘腾
Filing Date
2025-06-17
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Traditional handheld measuring devices are difficult to aim accurately at targets in complex terrain or confined spaces, and laser rangefinders are easily damaged, failing to meet diverse measurement needs and increasing usage costs.

Method used

A handheld measuring device for building management has been designed, comprising an adjustment component and a protection component. The adjustment component enables angle adjustment via a toothed plate and a rotating rod, while the protection component protects the optical system via a magnetic baffle and double torsion springs, ensuring measurement accuracy and equipment integrity.

Benefits of technology

It enables accurate measurement of target distance in complex environments, avoiding damage to equipment caused by external impacts and dust accumulation, and reducing maintenance and replacement costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of measurement, and discloses a handheld measuring assembly for building management, which comprises a laser range finder, the bottom of the laser range finder is fixedly connected with a base, the outer side of the laser range finder is fixedly connected with a mounting rack, the bottom of the base is provided with an adjusting assembly, and the outer side of the base is provided with a protective assembly. The adjusting assembly comprises a supporting block, and the bottom of the supporting block is fixedly connected with a fixing rod. According to the utility model, inward pressing force is applied to the fixed rod to drive the latch plate II to move inwards along the rotating rod, the spring deforms to be disengaged from the latch plate I, then rotating torque is applied to drive the latch plate II to rotate around the shaft, the pressure is relieved after the latch plate II reaches a target angle, the spring rebounds to push the latch plate II and the latch plate I to be engaged again, and the angle of the fixed rod is locked; angle adjustment of the laser range finder is completed, accurate target alignment is ensured, and the device can still accurately measure the target distance in a non-horizontal or vertical complex scene.
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Description

Technical Field

[0001] This utility model relates to the field of measurement technology, and in particular to a handheld measuring component for building management. Background Technology

[0002] Construction management is a comprehensive control over the entire lifecycle of a construction project. It uses scientific methods to coordinate factors such as schedule, quality, cost, and safety to efficiently complete the project within constraints and ensure the building meets requirements. Handheld measuring kits are portable measuring tools that can quickly detect parameters such as length, angle, and temperature. They assist designers in obtaining site data during planning and design, ensure accurate installation dimensions during construction, quantitatively measure indicators such as wall flatness during quality acceptance, and monitor environmental parameters during safety management.

[0003] The types of handheld measuring devices used in building management are diverse, including laser rangefinders and steel tape measures for measuring length and distance, electronic angle gauges and levels for measuring angles and levels, as well as ultrasonic thickness gauges and laser line projectors.

[0004] In construction scenarios, when using traditional measuring equipment, users often need to frequently adjust their position or use ladders, supports, or other auxiliary tools when measuring complex terrain or confined spaces, such as irregular walls, narrow corners, or objects at height. This is not only cumbersome and time-consuming, but also prone to measurement deviations due to difficulty in accurately aligning with the target, failing to meet diverse measurement needs. In addition, the accumulation of dust, sand, and other particles can obstruct the laser emission and reception paths, interfering with signal transmission. Furthermore, laser rangefinders are easily broken and damaged when accidentally dropped or collided, as the lens lacks cushioning protection. This not only shortens the instrument's lifespan, but also significantly increases usage and time costs due to frequent repairs or lens replacements. Therefore, a handheld measuring component for construction management is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a handheld measuring component for building management, which aims to improve the problems of laser rangefinders being unable to adjust the angle and lacking lens protection.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a handheld measuring component for building management, including a laser rangefinder, a base fixedly connected to the bottom of the laser rangefinder, a mounting bracket fixedly connected to the outside of the laser rangefinder, an adjustment component provided at the bottom of the base, and a protective component provided on the outside of the base;

[0007] The adjustment assembly includes a support block, a fixed rod fixedly connected to the bottom of the support block, a rotating rod fixedly connected to the outside of the fixed rod, a protective shell provided on the outside of the rotating rod, a locking plate one fixedly connected inside the protective shell, a locking plate two fixedly connected to the side of the rotating rod away from the fixed rod, the locking plate two and the locking plate one meshing, a spring fixedly connected to the outside of the locking plate two, and a handle fixedly connected to the bottom of the protective shell.

[0008] As a further description of the above technical solution:

[0009] The protective component includes a baffle, two fixing blocks 1 are fixedly connected to the outside of the baffle, a connecting rod is rotatably connected between the two fixing blocks 1, two fixing blocks 2 are rotatably connected to the outside of the connecting rod, a double torsion spring is sleeved on the outside of the connecting rod, and a magnetic block is fixedly connected to the bottom of the base, and the magnetic block and the baffle are magnetically attracted to each other.

[0010] As a further description of the above technical solution:

[0011] An optical system is provided on the outside of the laser rangefinder, and multiple function keys are provided on the outside of the laser rangefinder.

[0012] As a further description of the above technical solution:

[0013] One end of the double torsion spring is fixedly connected to the outside of the baffle, and the other end of the double torsion spring is fixedly connected to the bottom of the base. The second fixing block is fixedly connected to the bottom of the base.

[0014] As a further description of the above technical solution:

[0015] The end of the spring away from the fixed rod is fixedly connected inside the protective shell, and the rotating rod is disposed inside the toothed plate.

[0016] As a further description of the above technical solution:

[0017] The support block is fixedly connected to the bottom of the base.

[0018] As a further description of the above technical solution:

[0019] The mounting bracket is fixedly connected to the outside of the base.

[0020] As a further description of the above technical solution:

[0021] The baffle abuts against the laser rangefinder, and the baffle abuts against the base.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, when measuring the target distance in a complex environment, it is necessary to adjust the angle and apply inward pressure to the fixed rod to drive the second toothed plate to move inward along the rotating rod. The spring is compressed and deformed. After the second toothed plate disengages from the first toothed plate, a rotational torque is applied to the fixed rod. The rotating rod drives the second toothed plate to rotate around the axis. After reaching the target angle, the pressing pressure is released, and the spring rebounds to push the second toothed plate to re-engage with the first toothed plate. The angle of the fixed rod is locked by the rotating rod, thus completing the angle adjustment of the laser rangefinder and ensuring accurate alignment with the target. This breakthrough overcomes the limitations of measurement scene and space, enabling the device to accurately measure the target distance in complex scenes that are neither horizontal nor vertical.

[0024] 2. In this utility model, when measuring with a laser rangefinder, pressing the baffle causes the double torsion spring, which is connected to the base at one end and the baffle at the other, to be compressed and deformed by axial force. At the same time, the baffle rotates around the connecting rod, exposing the optical system. The baffle is magnetic, and the magnetic attraction force is greater than the elastic restoring force of the double torsion spring, so it is fixed by the magnetic block. After the optical system is opened, the measurement can be started. The parameter measurement is completed by transmitting and receiving laser signals. When the measurement is finished, the pressing is released, and the double torsion spring rebounds and drives the baffle to reset, protecting the optical system and preventing the equipment from being accidentally dropped and causing mechanical damage. This effectively avoids damage to the lens due to external impact, dust accumulation, or liquid corrosion in various scenarios, ensuring measurement accuracy and equipment life. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a handheld measuring component for building management proposed in this utility model;

[0026] Figure 2 This is a cross-sectional schematic diagram of a protective shell for a handheld measuring component for building management proposed in this utility model.

[0027] Figure 3 An exploded three-dimensional schematic diagram of the baffle of a handheld measuring component for building management proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the torsion spring in a handheld measuring component for building management proposed in this utility model.

[0029] Figure 5 This is a schematic diagram of the connecting rod of a handheld measuring component for building management proposed in this utility model.

[0030] Legend:

[0031] 1. Laser rangefinder; 2. Function keys; 3. Optical system; 4. Handle; 5. Fixing rod; 6. Support block; 7. Protective shell; 8. Rotating rod; 9. Clamping plate one; 10. Clamping plate two; 11. Spring; 12. Base; 13. Mounting bracket; 14. Magnetic block; 15. Baffle; 16. Connecting rod; 17. Fixing block one; 18. Fixing block two; 19. Double torsion spring. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-5 This utility model provides an embodiment of a handheld measuring component for building management, including a laser rangefinder 1. A base 12 is fixedly connected to the bottom of the laser rangefinder 1, and a mounting bracket 13 is fixedly connected to the outside of the laser rangefinder 1. An adjustment component is provided at the bottom of the base 12, and a protective component is provided on the outside of the base 12. The laser rangefinder 1 is used when measuring the length and distance of a building. The base 12 is used to support the laser rangefinder 1, and the mounting bracket 13 is used to prevent the laser rangefinder 1 from falling from the rear. The adjustment component of the laser rangefinder 1 can flexibly adjust the laser emission angle, and the protective component effectively prevents the lens of the optical system 3 from being damaged by external impact, dust accumulation, or liquid corrosion.

[0034] The adjustment assembly includes a support block 6, a fixed rod 5 fixedly connected to the bottom of the support block 6, a rotating rod 8 fixedly connected to the outside of the fixed rod 5, a protective shell 7 on the outside of the rotating rod 8, a locking plate 9 fixedly connected inside the protective shell 7, a locking plate 10 fixedly connected to the side of the rotating rod 8 away from the fixed rod 5, the locking plate 10 and the locking plate 9 meshing, a spring 11 fixedly connected to the outside of the locking plate 10, and a handle 4 fixedly connected to the bottom of the protective shell 7. The adjustment assembly adjusts the angle of the laser rangefinder 1 through the support block 6, and the assembly adjusts the angle of the laser rangefinder 1 through the movement of the fixed rod 5. The angle adjustment is achieved by rotating rod 8 to transmit the movement of fixed rod 5, and protective shell 7 to protect the adjustment component and reduce the risk of damage to its internal equipment due to external factors. The adjustment component achieves angle adjustment by rotating toothed plate 2 10. The adjustment component achieves locking function after angle adjustment by meshing toothed plate 1 9 and toothed plate 2 10. Spring 11 provides thrust for the movement of toothed plate 2 10, driving it to complete sliding, resetting and other actions. The handle 4 is equipped with anti-slip texture on the outside, which is convenient for stable one-handed grip and ensures that the laser emission direction does not deviate during measurement.

[0035] The protective assembly includes a baffle 15, with two fixing blocks 17 fixedly connected to the outside of the baffle 15. A connecting rod 16 is rotatably connected between the two fixing blocks 17. Two fixing blocks 18 are rotatably connected to the outside of the connecting rod 16. A double torsion spring 19 is sleeved on the outside of the connecting rod 16. A magnet 14 is fixedly connected to the bottom of the base 12. The magnet 14 and the baffle 15 are magnetically attracted to each other. The protective assembly protects the lens of the optical system 3 through the baffle 15. The baffle 15 is rotated through the fixing blocks 17, and the fixing blocks 17 are rotated through the connecting rod 16. The double torsion spring 19 is stabilized through the connecting rod 16. The magnet 14 is fixed to the bottom of the base 12 for stability. The magnet 14 and the baffle 15 are attracted by opposite poles. The attraction force of the magnet 14 is greater than the elastic restoring force of the double torsion spring 19.

[0036] An optical system 3 is set on the outside of the laser rangefinder 1, and multiple function keys 2 are set on the outside of the laser rangefinder 1. The laser rangefinder 1 realizes the core function of ranging through the optical system 3. In the optical system 3, the laser emitting module generates a measuring scale, the receiving module reads the reflection feedback, and the aiming system ensures that the scale is accurately aligned with the target. The three work together to realize ranging. The function keys 2 realize function triggering and parameter adjustment through standardized operation commands.

[0037] One end of the double torsion spring 19 is fixedly connected to the outside of the baffle 15, and the other end of the double torsion spring 19 is fixedly connected to the bottom of the base 12. The second fixing block 18 is fixedly connected to the bottom of the base 12. The baffle 15 is rotated by the double torsion spring 19. The double torsion spring 19 is stabilized by being fixed to the bottom of the base 12. The connecting rod 16 rotates stably at the bottom of the base 12 by the second fixing block 18.

[0038] The end of the spring 11 away from the fixed rod 5 is fixedly connected to the inside of the protective shell 7. The rotating rod 8 is set inside the toothed plate 9. The spring 11 achieves automatic reset by being fixed inside the protective shell 7, and the rotating rod 8 moves inside the toothed plate 9.

[0039] The support block 6 is fixedly connected to the bottom of the base 12, and the base 12 rotates synchronously by rotating the angle of the support block 6.

[0040] Mounting bracket 13 is fixedly connected to the outside of base 12. Mounting bracket 13 prevents laser rangefinder 1 from falling off the rear end of base 12 by fixing it to the outside of base 12.

[0041] The baffle 15 abuts against the laser rangefinder 1 and the base 12. The baffle 15 protects the lens of the optical system 3 by abutting against the laser rangefinder 1 and the base 12.

[0042] Working principle:

[0043] When conducting target distance measurement operations in complex environments, angle adjustment is required to adapt to measurement needs. Specifically, an inward pressing force is applied to the fixed rod 5. Under this force, the fixed rod 5 drives the second locator plate 10 to move inward along the rotating rod 8. During this process, the spring 11 undergoes elastic deformation due to the compression of the second locator plate 10. After the second locator plate 10 disengages from the first locator plate 9, a rotational torque is applied to the fixed rod 5. With the transmission action of the rotating rod 8, the fixed rod 5 drives the second locator plate 10 to rotate synchronously around the axis. When it rotates to the target angle position, the pressing force on the fixed rod 5 is released. The spring 11 rebounds due to the release of its elastic potential energy, pushing the second locator plate 10 to move in the opposite direction, so that the second locator plate 10 and the first locator plate 9 re-engage and lock. The second locator plate 10 locks the spatial angle position of the fixed rod 5 through the force transmission of the rotating rod 8, thereby completing the angle adjustment of the laser rangefinder 1 and ensuring that it can accurately align with the target in complex environments, providing a stable angle reference for distance measurement.

[0044] When the laser rangefinder 1 is used for measurement, a pressing operation is applied to the baffle 15. Since one end of the double torsion spring 19 is connected to the base 12 and the other end is connected to the baffle 15, during the pressing of the baffle 15, the double torsion spring 19 is compressed and deformed by the axial force. At the same time, the baffle 15 rotates around the connecting rod 16 as the rotation center, causing the optical system 3 to be exposed to the working space. Since the baffle 15 has magnetic properties and the magnetic block 14 has a greater attraction force than the elastic restoring force of the double torsion spring 19, the baffle 15 will be attracted and fixed by the magnetic block 14. At this time, the optical system 3 is in an open state, and the measurement process can be started. By emitting and receiving laser signals, the measurement of parameters such as target distance is completed. When the measurement operation is completed, the pressing of the baffle 15 is released. The double torsion spring 19 releases its elastic potential energy and generates a rebound action, driving the baffle 15 back to its initial position, forming physical protection for the optical system 3, avoiding mechanical damage to the optical system 3 due to accidental drops or other working conditions, and ensuring the stability and reliability of the equipment's measurement performance.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A handheld measuring device for building management, comprising a laser rangefinder (1), characterized in that: The laser rangefinder (1) is fixedly connected to a base (12) at its bottom, and a mounting bracket (13) is fixedly connected to the outside of the laser rangefinder (1). An adjustment component is provided at the bottom of the base (12), and a protective component is provided on the outside of the base (12). The adjustment assembly includes a support block (6), a fixed rod (5) is fixedly connected to the bottom of the support block (6), a rotating rod (8) is fixedly connected to the outside of the fixed rod (5), a protective shell (7) is provided on the outside of the rotating rod (8), a first toothed plate (9) is fixedly connected inside the protective shell (7), a second toothed plate (10) is fixedly connected to the side of the rotating rod (8) away from the fixed rod (5), the second toothed plate (10) and the first toothed plate (9) mesh, a spring (11) is fixedly connected to the outside of the second toothed plate (10), and a handle (4) is fixedly connected to the bottom of the protective shell (7).

2. The handheld measuring component for building management according to claim 1, characterized in that: The protective assembly includes a baffle (15), two fixing blocks (17) are fixedly connected to the outside of the baffle (15), a connecting rod (16) is rotatably connected between the two fixing blocks (17), two fixing blocks (18) are rotatably connected to the outside of the connecting rod (16), a double torsion spring (19) is sleeved on the outside of the connecting rod (16), a magnetic block (14) is fixedly connected to the bottom of the base (12), and the magnetic block (14) and the baffle (15) are magnetically attracted to each other.

3. The handheld measuring component for building management according to claim 1, characterized in that: An optical system (3) is provided on the outside of the laser rangefinder (1), and multiple function keys (2) are provided on the outside of the laser rangefinder (1).

4. The handheld measuring component for building management according to claim 2, characterized in that: One end of the double torsion spring (19) is fixedly connected to the outside of the baffle (15), and the other end of the double torsion spring (19) is fixedly connected to the bottom of the base (12). The second fixing block (18) is fixedly connected to the bottom of the base (12).

5. A handheld measuring device for building management according to claim 1, characterized in that: The end of the spring (11) away from the fixed rod (5) is fixedly connected inside the protective shell (7), and the rotating rod (8) is disposed inside the toothed plate (9).

6. The handheld measuring component for building management according to claim 1, characterized in that: The support block (6) is fixedly connected to the bottom of the base (12).

7. The handheld measuring component for building management according to claim 1, characterized in that: The mounting bracket (13) is fixedly connected to the outside of the base (12).

8. A handheld measuring component for building management according to claim 2, characterized in that: The baffle (15) abuts against the laser rangefinder (1), and the baffle (15) abuts against the base (12).