A device for measuring the thickness of a building prefabricated component

Abstract

The utility model discloses a kind of building prefabricated component thickness measuring devices, including measuring frame component, laser ranging arm component and target arm component are respectively slidably arranged in the both ends of measuring frame component, and driving arm component is rotationally arranged in the inside center of measuring frame component, the utility model is measured, by the centering clamping between first vertical arm and second vertical arm, so that the clamping structure of building piece is formed between first clamping arm and second clamping arm, the fixation when thickness measurement is realized, when thickness measurement, by the cooperation of laser range finder and target disc, the measurement of distance is realized, i.

Description

Technical Field

[0001] This utility model belongs to the field of building measurement technology, and specifically relates to a device for measuring the thickness of prefabricated building components. Background Technology

[0002] Precast building components, such as precast concrete panels, precast columns, and precast beams, are widely used in modern architecture. Their dimensional accuracy directly affects the quality of structural installation, load-bearing capacity, and long-term durability. Among these, component thickness is one of the key geometric parameters. Uneven thickness can lead to stress concentration, affecting the overall structural performance and even causing safety hazards.

[0003] Currently, the measurement of the thickness of precast building components mainly relies on traditional measuring tools, such as vernier calipers and steel tape measures. However, these methods have significant shortcomings in practical applications: Limited measurement range: Vernier calipers are suitable for smaller components, but they are difficult to effectively clamp and measure large, thick precast slabs, beams, columns and other components.

[0004] Measurement inefficiency: Traditional methods usually require multiple people to cooperate and multiple positioning operations, which is cumbersome and inefficient, especially in batch testing or rapid on-site verification.

[0005] Measurement accuracy is limited: tools such as steel measuring tapes are easily affected by human reading errors, tape bending, uneven tension, etc., making it difficult to achieve high-precision measurement, especially for components with uneven surfaces or curvature.

[0006] Lack of automatic clamping and stabilization functions: Most existing tools require manual fixing, which makes it difficult to maintain stable clamping during measurement and can easily lead to deviations in measurement results due to loosening.

[0007] Therefore, the industry urgently needs a thickness measuring device that can adapt to prefabricated components of different sizes, is easy to operate, provides accurate measurements, and has an automatic clamping function, in order to improve inspection efficiency, ensure data reliability, and provide technical support for component quality control. Utility Model Content

[0008] To address the problems mentioned in the background section, this invention provides a device for measuring the thickness of precast building components, which is easy to operate.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a thickness measuring device for precast building components, comprising a measuring frame assembly, wherein a laser ranging arm assembly and a target arm assembly are slidably disposed at both ends of the measuring frame assembly, and a drive arm assembly is rotatably disposed at the center of the measuring frame assembly. By driving the laser ranging arm assembly and the target arm assembly through the drive arm assembly, a thickness measuring structure for clamping the precast building component is formed between the laser ranging arm assembly and the target arm assembly. A reset arm assembly is disposed on one side inside the measuring frame assembly. By driving the drive arm assembly through the reset arm assembly, a self-tightening clamping measuring structure is formed between the laser ranging arm assembly and the target arm assembly.

[0010] In a preferred embodiment of a thickness measuring device for precast building components, the measuring frame assembly includes a base frame box, a top frame box is fixedly installed on the top of the base frame box, a square rod is fixedly installed inside the top frame box, and an end transverse groove is opened at the front end of the top frame box.

[0011] In a preferred embodiment of a thickness measuring device for precast building components, the laser rangefinder arm assembly includes a first vertical arm, with a laser rangefinder and a first clamping arm fixedly installed at the top and bottom of the first vertical arm, respectively, and a first toothed moving arm fixedly installed on one side of the middle portion of the first vertical arm. The target arm assembly includes a second vertical arm, with a target disk and a second clamping arm fixedly disposed at the top and bottom of the second vertical arm, respectively, and a second toothed moving arm fixedly disposed on one side of the middle portion of the second vertical arm.

[0012] In a preferred embodiment of a precast building component thickness measuring device, the drive arm assembly includes a drive shaft, with a force-applying gear and a drive gear fixedly disposed at the top and bottom of the drive shaft, respectively, and a toggle arm fixedly disposed on the force-applying gear; The reset arm assembly includes a reset toothed arm, a perforated back plate is fixedly disposed on the back of the reset toothed arm, and an anti-collision spring is fixedly disposed on one side of the perforated back plate.

[0013] In a preferred embodiment of a precast building component thickness measuring device, the base box has sliding grooves on both sides that match the first and second toothed arms. The first and second toothed arms slide on both sides inside the base box. The drive shaft is rotatably mounted on the top of the base box. At this time, the force-applying gear is mounted in the top box, the actuating arm is mounted in the end transverse groove, and the drive gear is mounted in the base box.

[0014] In a preferred embodiment of a precast building component thickness measuring device, the drive gear meshes with a first toothed arm and a second toothed arm on both sides, respectively. Through the meshing of the first toothed arm and the second toothed arm on both sides of the drive gear, a centered clamping arm structure is formed between the first vertical arm and the second vertical arm.

[0015] In a preferred embodiment of a precast building component thickness measuring device, the reset arm assembly is disposed inside a top frame box. At this time, the perforated back plate slides on the square rod, the abutment spring is sleeved on the square rod, the reset tooth arm meshes with the force-applying gear, one end of the abutment spring abuts against the inner wall of one end of the top frame box, and the other end of the abutment spring abuts against the perforated back plate. The top frame box is provided with a sliding groove that matches the reset tooth arm.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: During measurement, the first and second vertical arms are aligned and clamped together to form a clamping structure for the building component, thus achieving fixation during thickness measurement. During thickness measurement, the laser rangefinder and the target plate work together to measure the distance, i.e., the thickness of the building component. The reset arm assembly achieves continuous clamping between the laser rangefinder assembly and the target arm assembly. That is, the elastic force of the contact spring is converted to provide driving force for continuous clamping between the laser rangefinder assembly and the target arm assembly. It is convenient to use and has a simple structure. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a cross-sectional view of the measuring frame assembly of this utility model; Figure 4 This is a perspective view of the laser rangefinder arm assembly and the target arm assembly of this utility model; Figure 5 This is a perspective view of the drive arm assembly and the reset arm assembly of this utility model.

[0018] In the diagram: 100, measuring frame assembly; 101, base frame box; 102, square rod; 103, top frame box; 104, end transverse groove; 200, laser rangefinder arm assembly; 201, first vertical arm; 202, laser rangefinder; 203, first geared arm; 204, first clamping arm; 300, target arm assembly; 301, second vertical arm; 302, second clamping arm; 303, second geared arm; 304, target plate; 400, drive arm assembly; 401, drive shaft; 402, drive gear; 403, force-applying gear; 404, actuating arm; 500, reset arm assembly; 501, reset gear arm; 502, perforated back plate; 503, contact spring. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-5 As shown, this utility model provides a thickness measuring device for precast building components, including a measuring frame assembly 100. A laser rangefinder arm assembly 200 and a target arm assembly 300 are slidably disposed at both ends of the measuring frame assembly 100, and a drive arm assembly 400 is rotatably disposed at the center inside the measuring frame assembly 100. By driving the laser rangefinder arm assembly 200 and the target arm assembly 300 through the drive arm assembly 400, a thickness measuring structure for clamping the precast building components is formed between the laser rangefinder arm assembly 200 and the target arm assembly 300. A reset arm assembly 500 is disposed on one side inside the measuring frame assembly 100. By driving the drive arm assembly 400 through the reset arm assembly 500, a self-tightening clamping measuring structure is formed between the laser rangefinder arm assembly 200 and the target arm assembly 300.

[0021] In a preferred embodiment, please refer to Figure 3 The measuring frame assembly 100 includes a base frame box 101, a top frame box 103 fixedly installed on the top of the base frame box 101, a square rod 102 fixedly installed inside the top frame box 103, and an end cross groove 104 opened at the front end of the top frame box 103.

[0022] In this embodiment, the base box 101 has sliding grooves on both sides that match the first toothed arm 203 and the second toothed arm 303.

[0023] In this embodiment, the first toothed arm 203 and the second toothed arm 303 slide on both sides inside the base box 101.

[0024] In this embodiment, the top frame box 103 is provided with a sliding groove that matches the reset toothed arm 501.

[0025] In a preferred embodiment, please refer to Figure 4 The laser rangefinder arm assembly 200 includes a first vertical arm 201, with a laser rangefinder 202 and a first clamping arm 204 fixedly mounted at the top and bottom of the first vertical arm 201, respectively, and a first toothed arm 203 fixedly mounted on one side of the middle part of the first vertical arm 201.

[0026] In a preferred embodiment, please refer to Figure 4The target arm assembly 300 includes a second vertical arm 301, with a target disk 304 and a second clamping arm 302 fixedly disposed at the top and bottom of the second vertical arm 301, respectively, and a second toothed arm 303 fixedly disposed on one side of the middle part of the second vertical arm 301.

[0027] In a preferred embodiment, please refer to Figure 5 The drive arm assembly 400 includes a drive shaft 401, with a force-applying gear 403 and a drive gear 402 fixedly disposed at the top and bottom of the drive shaft 401, respectively, and a toggle arm 404 fixedly disposed on the force-applying gear 403.

[0028] In this embodiment, the drive shaft 401 is rotatably mounted on the top of the base box 101.

[0029] In this embodiment, the force-applying gear 403 is disposed inside the top frame box 103.

[0030] In this embodiment, the actuating arm 404 is disposed within the end transverse groove 104.

[0031] In this embodiment, the drive gear 402 is disposed inside the base box 101.

[0032] In this embodiment, the drive gear 402 meshes with the first toothed arm 203 and the second toothed arm 303 on both sides, respectively.

[0033] In this embodiment, the meshing of the first toothed arm 203 and the second toothed arm 303 on both sides of the drive gear 402 forms a centered clamping arm structure between the first vertical arm 201 and the second vertical arm 301.

[0034] In a preferred embodiment, please refer to Figure 5 The reset arm assembly 500 includes a reset toothed arm 501, a perforated back plate 502 is fixedly disposed on the back of the reset toothed arm 501, and an abutment spring 503 is fixedly disposed on one side of the perforated back plate 502.

[0035] In this embodiment, the reset arm assembly 500 is disposed within the top frame box 103.

[0036] In this embodiment, the perforated back plate 502 slides on the square rod 102.

[0037] In this embodiment, the abutment spring 503 is sleeved on the square rod 102.

[0038] In this embodiment, the reset gear 501 meshes with the force-applying gear 403.

[0039] In this embodiment, one end of the abutment spring 503 abuts against the inner wall of one end of the top frame box 103, and the other end of the abutment spring 503 abuts against the perforated back plate 502.

[0040] The working principle of this utility model is as follows: With the increasing use of precast PC components, precast columns, and precast beams, uneven thickness may exacerbate stress concentration, and thinner areas are prone to buckling or fracture, reducing the structural load-bearing capacity and stability. Therefore, thickness measurement is particularly important. Traditional vernier calipers cannot accurately reflect the thickness and are time-consuming and labor-intensive. Thick precast slabs, excessively large precast beams, and precast columns cannot be measured using vernier calipers, and steel tape measures have significant errors. To overcome these problems, this utility model has a measuring frame assembly 100 with a laser rangefinder arm assembly 200 and a target arm assembly 300 slidably mounted at both ends, and a drive arm assembly 400 is rotatably mounted at the center of the measuring frame assembly 100. The drive of component 400 on laser rangefinder assembly 200 and target arm assembly 300 forms a thickness measurement structure for clamping prefabricated building components between them. Specifically, the first toothed arm 203 and the second toothed arm 303 slide on both sides inside the base box 101, and the drive shaft 401 is rotatably mounted on the top of the base box 101. At this time, the force-applying gear 403 is located inside the top box 103, the actuating arm 404 is located inside the end transverse groove 104, and the drive gear 402 is located inside the base box 101. At this time, the two sides of the drive gear 402 mesh with the first toothed arm 203 and the second toothed arm 303 respectively. Through the first toothed arm 203 and the second toothed arm 303, the drive gear 402 is engaged with the first toothed arm 203 and the second toothed arm 303. The lateral engagement forms a centered clamping arm structure between the first vertical arm 201 and the second vertical arm 301. In this way, during measurement, the centered clamping between the first vertical arm 201 and the second vertical arm 301 creates a clamping structure between the first clamping arm 204 and the second clamping arm 302, achieving fixation during thickness measurement. During thickness measurement, the laser rangefinder 202 and the target disk 304 cooperate to measure the distance, i.e., the thickness of the building component. To ensure continuous clamping measurement between the laser rangefinder arm assembly 200 and the target arm assembly 300, a reset arm assembly 500 is provided on one side inside the measuring frame assembly 100 of this invention. The reset arm assembly 500 drives the drive arm assembly 400. The movement causes a self-tightening clamping measurement structure to be formed between the laser rangefinder arm assembly 200 and the target arm assembly 300. Specifically, the reset arm assembly 500 is set inside the top frame box 103. At this time, the perforated back plate 502 slides on the square rod 102, and the abutment spring 503 is sleeved on the square rod 102. The reset gear arm 501 meshes with the force-applying gear 403. One end of the abutment spring 503 abuts against the inner wall of one end of the top frame box 103, and the other end of the abutment spring 503 abuts against the perforated back plate 502. Through the pushing of the perforated back plate 502 by the abutment spring 503, the reset gear arm 501 drives the force-applying gear 403 to rotate clockwise. At this time, the force-applying gear 403 drives the drive gear 402 to rotate clockwise. When the drive gear 402 rotates clockwise...At this time, the drive gear 402, through meshing with the first toothed arm 203 and the second toothed arm 303, achieves continuous clamping between the laser rangefinder assembly 200 and the target arm assembly 300. That is, by converting the elastic force of the resisting spring 503, it provides driving force for the continuous clamping between the laser rangefinder assembly 200 and the target arm assembly 300, making it convenient to use and simple in structure.

[0041] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the thickness of precast building components, comprising a measuring frame assembly (100), characterized in that: The measuring frame assembly (100) has a laser rangefinder arm assembly (200) and a target arm assembly (300) slidably disposed at both ends, and a drive arm assembly (400) is rotatably disposed at the center of the measuring frame assembly (100). The drive arm assembly (400) drives the laser rangefinder arm assembly (200) and the target arm assembly (300) to form a thickness measurement structure for clamping the prefabricated building components. A reset arm assembly (500) is disposed on one side inside the measuring frame assembly (100). The reset arm assembly (500) drives the drive arm assembly (400) to form a self-tightening clamping measurement structure for clamping the laser rangefinder arm assembly (200) and the target arm assembly (300).

2. The thickness measuring device for prefabricated building components according to claim 1, characterized in that: The measuring frame assembly (100) includes a base frame box (101), a top frame box (103) is fixedly installed on the top of the base frame box (101), a square rod (102) is fixedly installed inside the top frame box (103), and an end cross groove (104) is opened at the front end of the top frame box (103).

3. The thickness measuring device for prefabricated building components according to claim 2, characterized in that: The laser rangefinder arm assembly (200) includes a first vertical arm (201), a laser rangefinder (202) and a first clamping arm (204) are fixedly installed at the top and bottom of the first vertical arm (201) respectively, and a first toothed arm (203) is fixedly installed on one side of the middle part of the first vertical arm (201). The target arm assembly (300) includes a second vertical arm (301), a target disk (304) and a second clamping arm (302) are fixedly disposed at the top and bottom of the second vertical arm (301) respectively, and a second toothed arm (303) is fixedly disposed on one side of the middle part of the second vertical arm (301).

4. The thickness measuring device for precast building components according to claim 3, characterized in that: The drive arm assembly (400) includes a drive shaft (401), and a force-applying gear (403) and a drive gear (402) are fixedly provided at the top and bottom of the drive shaft (401), respectively. A toggle arm (404) is fixedly provided on the force-applying gear (403). The reset arm assembly (500) includes a reset toothed arm (501), a perforated back plate (502) is fixedly provided on the back of the reset toothed arm (501), and an anti-spring (503) is fixedly provided on one side of the perforated back plate (502).

5. The thickness measuring device for precast building components according to claim 4, characterized in that: The base box (101) has sliding grooves on both sides that match the first toothed arm (203) and the second toothed arm (303). The first toothed arm (203) and the second toothed arm (303) slide on both sides inside the base box (101). The drive shaft (401) is rotatably mounted on the top of the base box (101). At this time, the force-applying gear (403) is mounted in the top frame box (103), the actuating arm (404) is mounted in the end transverse groove (104), and the drive gear (402) is mounted in the base box (101).

6. The thickness measuring device for prefabricated building components according to claim 4, characterized in that: The drive gear (402) meshes with the first toothed arm (203) and the second toothed arm (303) on both sides respectively. Through the meshing of the first toothed arm (203) and the second toothed arm (303) on both sides of the drive gear (402), a centered clamping arm structure is formed between the first vertical arm (201) and the second vertical arm (301).

7. The thickness measuring device for prefabricated building components according to claim 4, characterized in that: The reset arm assembly (500) is disposed inside the top frame box (103). At this time, the perforated back plate (502) slides on the square rod (102), the abutment spring (503) is sleeved on the square rod (102), the reset tooth arm (501) meshes with the force-applying gear (403), one end of the abutment spring (503) abuts against the inner wall of one end of the top frame box (103), and the other end of the abutment spring (503) abuts against the perforated back plate (502). The top frame box (103) is provided with a sliding groove that matches the reset tooth arm (501).

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