A wall hardness detector for fabricated building engineering detection

By designing the connecting rod and the detector structure, the dual-sided synchronous detection of wall hardness and the correction of tilt and concavity in prefabricated building projects were realized, solving the problems of low detection efficiency and inaccurate data in the existing technology, and improving the stability and accuracy of the detection.

CN224500270UActive Publication Date: 2026-07-14SHENZHEN SPORTS CENT OPERATION MANAGEMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN SPORTS CENT OPERATION MANAGEMENT CO LTD
Filing Date
2025-08-05
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing prefabricated building projects, wall hardness testing suffers from problems such as low testing efficiency, inaccurate data, inability to achieve simultaneous testing on both sides, and being affected by wall tilt and slight unevenness.

Method used

A wall hardness tester for prefabricated building engineering testing was designed. It adopts a connecting rod and tester structure, and the distance between the testers can be adjusted by the telescopic function. It uses a right-angle plate and abutment to realize double-sided synchronous hardness testing. The wall tilt and unevenness can be corrected by adjusting the length of the abutment plate to ensure the stability and accuracy of the test.

Benefits of technology

It improves the stability and accuracy of wall hardness testing, enables simultaneous testing on both sides, adapts to walls of different thicknesses, can correct wall tilt and unevenness, and improves the reliability and flexibility of test data.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to building detection instrument technical field, and disclose a kind of wall hardness detector for assembly type building engineering detection, including connecting rod and detector, the both ends of connecting rod are movably connected with detector, connecting rod has telescopic function, the spacing of both ends detector is adjusted, so that both ends detector is attached on the two sides of wall, realize the hardness detection of the two sides of wall simultaneously, detector is by protection cylinder and hardness gauge, protection cylinder is movably connected with hardness gauge, release button of hardness gauge is installed with connecting plate, both ends of connecting plate are fixed with side plate, sliding block is fixed on side plate. The right-angle plate installed on the both sides of protection cylinder is used as supporting structure, two abutting plates are attached on the edge of the detected position of wall surface, when pushing protection cylinder, the probe of hardness detector can be stably attached on wall surface, so compared with single handheld mode, the stability of wall hardness detection is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of building testing equipment technology, specifically a wall hardness tester for testing prefabricated building projects. Background Technology

[0002] In the construction quality inspection of prefabricated building projects, wall hardness is one of the core indicators for evaluating structural safety and material performance. Traditional testing methods often use handheld hardness testers for single-point testing, requiring measurements to be taken on both sides of the wall. This results in low testing efficiency and delayed data comparison. Furthermore, the handheld method is unstable, posing a risk of shaking and affecting the test data. Especially in prefabricated buildings, where walls are often constructed using precast components, the uniformity of their internal structure and the consistency of hardness on both sides directly affect the overall building quality. Existing testing equipment struggles to perform simultaneous testing on both sides, and some prefabricated building walls exhibit tilting or slight unevenness, leading to tilted testing locations and affecting the accuracy of the assessment. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a wall hardness tester for testing prefabricated building engineering. It has the advantages of ensuring the stability of wall hardness testing, realizing synchronous testing of relative points on both sides, and correcting the stability of the test to improve data accuracy. It solves the problems of instability caused by the current handheld method, which leads to inaccurate data, inability to realize synchronous testing of relative points on both sides, and inaccurate test data due to the influence of wall tilt and slight unevenness.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a wall hardness tester for testing prefabricated building engineering, comprising a connecting rod and a tester, wherein the tester is movably connected to both ends of the connecting rod, and the connecting rod has a telescopic function to adjust the distance between the two testers, so that the testers at both ends fit against the two sides of the wall, thereby enabling simultaneous hardness testing of both sides of the wall.

[0005] The testing instrument consists of a protective cylinder and a hardness tester. The hardness tester is movably connected to the protective cylinder. A connecting plate is installed on the release button of the hardness tester. Side plates are fixed at both ends of the connecting plate, and sliders are fixed on the side plates. When the sliders are pushed, the side plates move the connecting plate, causing the probe at the front end of the hardness tester to contact the wall surface and triggering the release head of the hardness tester, so that the hardness tester can calculate the hardness value of the wall.

[0006] The testing instrument also includes a movable component movably connected to the side of the protective cylinder. The movable component includes a right-angle plate movably connected to both sides of the protective cylinder. One end of the right-angle plate is mounted on a slider, and the other end of the right-angle plate is provided with a collar. When the right-angle plate is subjected to force, it drives the slider to move simultaneously, thereby triggering the release head of the connecting plate, so that the hardness tester can calculate the hardness value of the cavity.

[0007] A contact element is movably connected to the right-angle plate. The contact element includes a contact plate movably connected to the front side of the right-angle plate. A moving rod is fixed on the back of the contact plate. The moving rod is movably sleeved in a collar. By pushing and pulling the moving rod back and forth, the length of the contact plate can be adjusted so that the probe of the detector can be stably attached to the wall.

[0008] When using this wall hardness tester for prefabricated building engineering, the length of the connecting rod is adjusted so that its side fits into the door or window frame, thus stably attaching the two sets of testers at both ends to opposite sides of the wall. Then, the length of the contact parts on the right-angle plates at both ends of the tester is adjusted to make the tester parallel to the wall surface. By rotating the fixing knob, the front end of the fixing knob is pressed tightly against the corresponding position in the stabilizing groove, thus fixing the adjusted length of the contact parts. Next, by pushing the protective cylinders in both sets of testers, the probes of the internal hardness testers are pressed against the wall surface. Simultaneously, the connecting plate triggers the release head, causing the DL impact device inside the probe to detect the wall hardness and send feedback to the hardness tester, thereby completing the simultaneous hardness testing of both sides of the wall.

[0009] As a further improvement to the above solution, a handle is fixed to the tail end of the protective cylinder.

[0010] With the above technical solution, by holding the handle and pushing forward, the thrust can be stably delivered to the protective cylinder, so that the probe of the hardness tester on the protective cylinder is in contact with the wall surface.

[0011] As a further improvement to the above solution, the connecting rod consists of a sleeve and a rod, with the rod movably connected to both ends of the sleeve.

[0012] The sleeve has a locating button threaded on the side at both ends, with one end of the locating button fitting against the side of the sleeve rod.

[0013] Through the above technical solution, the sleeve rod can be extended and retracted within the sleeve to adjust the distance between the two detectors. After adjusting to the appropriate distance, the positioning button can be rotated to make the front end of the positioning button fit tightly against the side of the sleeve rod, thereby fixing the adjusted distance.

[0014] As a further improvement to the above solution, a threaded rod is rotatably connected to the front end of the sleeve rod, and a connecting cylinder is fixed to the back of one end of the right-angle plate, with one end of the threaded rod threaded into the connecting cylinder.

[0015] With the above technical solution, the front end of the sleeve rod is perpendicular to the right angle, and a threaded rod is rotatably connected to the front end of the sleeve rod, so that the connecting rod and the detector are at a right angle, and the two sets of detectors are attached to the relative positions on both sides of the wall.

[0016] As a further improvement to the above solution, the side of the collar is threaded with a retaining button, and the side of the moving rod is provided with a stabilizing groove along its length, with one end of the retaining button fitting into the stabilizing groove.

[0017] With the above technical solution, when the fixing button is in the stabilizing groove but not completely against the inner wall of the stabilizing groove, the moving rod moves smoothly back and forth in the collar, thereby adjusting the length of the contact plate. When adjusted to the appropriate position, the fixing button is rotated so that the front end of the fixing button is tightly against the inner wall of the stabilizing groove, thereby fixing the adjusted length position of the contact plate.

[0018] As a further improvement to the above solution, the two sides of the sump are stabilized, and the edge along its length is provided with an adjustable distance value.

[0019] By adjusting the moving rod so that the contact plate is in contact with the wall and the protective cylinder is parallel to the wall, the unevenness of the wall can be known by observing the adjustment value of the moving rod side on both right-angle plates and the value of the collar interface, and calculating the deviation.

[0020] As a further improvement to the above solution, a connecting ring is fixed at the front end of the protective cylinder, and the tail end of the hardness tester is threaded into the connecting ring.

[0021] With the above technical solution, the hardness tester has a thread on its side, which is connected to the connecting ring by the threaded connection, so that the hardness tester is inside the protective cylinder, and the probe of the hardness tester protrudes from the connecting ring, so that when the protective cylinder is pushed, the probe can fit against the wall.

[0022] As a further improvement to the above solution, a connection hole is provided on the slider.

[0023] One end of the right-angle plate is movably fitted with a fixing button, and the other end of the fixing button is threaded into the connecting hole.

[0024] Through the above technical solution, the front end of the fixing button passes through the right-angle plate and is threaded into the connecting hole on the slider, thereby connecting the right-angle plate and the slider. When the right-angle plate moves, it drives the slider to move at the same time.

[0025] As a further improvement to the above solution, a limiting groove is provided on the side of the protective cylinder, and the slider is slidably connected in the limiting groove.

[0026] The above technical solution ensures that the width of the slider matches the width of the limiting groove, thereby improving the stability of the slider's sliding motion.

[0027] Compared with the prior art, this utility model provides a wall hardness tester for testing prefabricated building engineering, which has the following beneficial effects:

[0028] 1. The wall hardness tester for prefabricated building engineering uses right-angle plates installed on both sides of the protective cylinder as a support structure. Two contact plates are attached to the edge of the wall at the test position. When the protective cylinder is pushed, the probe of the hardness detector can be stably attached to the wall, thus effectively improving the stability of wall hardness testing compared with the single handheld method.

[0029] 2. This wall hardness tester for prefabricated building engineering testing has testers installed at both ends of the connecting rod, so that the two sets of testers are respectively attached to the corresponding positions on both sides of the wall, realizing the effect of synchronous hardness testing of relative points on both sides, which effectively improves the accuracy and reliability of the test data. Furthermore, by adjusting the length of the connecting rod, the device can be used on walls of different thicknesses, further improving the flexibility of equipment use.

[0030] 3. This wall hardness tester for prefabricated building engineering testing can adjust the length of the contact plate by adjusting the moving rods fitted on the right-angle plates at both ends of the protective cylinder. This allows the tester to fit smoothly against walls with inclination and slight unevenness. At the same time, the adjustment distance values ​​on the two moving rods aligned with the collar interface can be observed, and the difference can be calculated to know the depth of the wall unevenness and inclination. This further improves the practicality and versatility of the device. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall connection structure of the device of this utility model;

[0032] Figure 2 This is a schematic diagram of the overall structure of the detector of this utility model;

[0033] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A in the middle;

[0034] Figure 4 This is a schematic diagram of the connection structure between the protective cylinder and the hardness tester of this utility model;

[0035] Figure 5 This is a schematic diagram of the connection structure between the hardness tester and the slider of this utility model.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1. Connecting rod; 101. Sleeve; 102. Sleeve rod; 103. Threaded rod; 104. Positioning button;

[0038] 2. Testing instrument; 21. Protective cylinder; 211. Handle; 212. Connecting ring; 213. Limiting slide groove; 22. Hardness tester; 221. Connecting plate; 222. Side plate; 223. Slider; 224. Connecting hole; 23. Moving part; 231. Right angle plate; 232. Fixing button; 233. Collar; 234. Retaining button; 24. Abutting part; 241. Moving rod; 242. Stabilizing slide groove; 243. Abutting plate; 244. Adjustable distance value; 245. Connecting cylinder. Detailed Implementation

[0039] 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. Example 1

[0040] Please see Figure 1-5 As shown, the wall hardness tester for prefabricated building engineering proposed in this embodiment includes a connecting rod 1 and a tester 2. The tester 2 is movably connected to both ends of the connecting rod 1. The connecting rod 1 has a telescopic function to adjust the distance between the two testers 2, so that the two testers 2 are attached to the two sides of the wall, and the hardness of the two sides of the wall can be tested simultaneously.

[0041] The testing instrument 2 consists of a protective cylinder 21 and a hardness tester 22. The hardness tester 22 is movably connected to the protective cylinder 21. A connecting plate 221 is installed on the release button of the hardness tester 22. Side plates 222 are fixed at both ends of the connecting plate 221. A slider 223 is fixed on the side plate 222. When the slider 223 is affected by the pushing force, it causes the side plate 222 to drive the connecting plate 221 to move, so that the probe at the front end of the hardness tester 22 is in contact with the wall surface, and triggers the release head of the hardness tester 22, so that the hardness tester 22 calculates the hardness value of the wall.

[0042] The detector 2 also includes a movable component 23 movably connected to the side of the protective cylinder 21. The movable component 23 includes a right-angle plate 231 movably connected to both sides of the protective cylinder 21. One end of the right-angle plate 231 is mounted on the slider 223, and the other end of the right-angle plate 231 is provided with a collar 233. When the right-angle plate 231 is subjected to force, it drives the slider 223 to move simultaneously, thereby triggering the release head of the connecting plate 221, so that the hardness tester 22 calculates the hardness value of the cavity.

[0043] A contact element 24 is movably connected to the right-angle plate 231. The contact element 24 includes a contact plate 243 movably connected to the front side of the right-angle plate 231. A moving rod 241 is fixed on the back of the contact plate 243. The moving rod 241 is movably sleeved in the collar 233. By pushing and pulling the moving rod 241 back and forth, the length of the contact plate 243 can be adjusted so that the probe of the detector 2 can be stably attached to the wall.

[0044] The working principle of the wall hardness tester for prefabricated building engineering proposed in this embodiment is as follows: During use, by adjusting the length of the connecting rod 1 and making the side of the connecting rod 1 fit into the door frame or window frame, the two sets of testers 2 at both ends are stably fitted onto the opposite sides of the wall. At this time, the length of the abutment 24 on the right-angle plate 231 at both ends of the tester 2 is adjusted so that the tester 2 is parallel to the wall surface. By rotating the fixing button 234, the front end of the fixing button 234 is pressed tightly against the corresponding position in the stabilizing groove 242, thereby fixing the adjusted length of the abutment 24. At this time, by pushing the protective cylinder 21 in the two sets of testers 2, the probe of the internal hardness tester 22 is fitted onto the wall surface. At the same time, the connecting plate 221 triggers the release head, so that the DL impact device in the probe detects the hardness of the wall surface and feeds back to the hardness tester, thereby completing the synchronous hardness detection of both sides of the wall.

[0045] Furthermore, a handle 211 is fixed to the tail end of the protective cylinder 21.

[0046] More specifically, by holding the handle 211 and pushing it forward, the thrust can be stably delivered to the protective cylinder 21, so that the probe of the hardness tester 22 on the protective cylinder 21 is in contact with the wall surface.

[0047] Furthermore, the connecting rod 1 is composed of a sleeve 101 and a rod 102, with the rod 102 movably sleeved at both ends of the sleeve 101.

[0048] The sleeve 101 has a locating button 104 threaded on the side at both ends, and one end of the locating button 104 is attached to the side of the sleeve rod 102.

[0049] More specifically, the sleeve 102 extends and retracts within the sleeve 101 to adjust the distance between the two detectors 2. Once the appropriate distance is reached, the positioning button 104 is rotated so that its front end is pressed tightly against the side of the sleeve 102, thereby fixing the adjusted distance.

[0050] Furthermore, a threaded rod 103 is rotatably connected to the front end of the sleeve rod 102, and a connecting cylinder 245 is fixed to the back of one end of the right angle plate 231, with one end of the threaded rod 103 threadedly connected to the connecting cylinder 245.

[0051] More specifically, the front end of the sleeve rod 102 is perpendicular to the right angle, and a threaded rod 103 is rotatably connected to the front end of the sleeve rod 102, so that the connecting rod 1 and the detector 2 are perpendicular to each other, and the two sets of detectors 2 are attached to the relative positions on both sides of the wall. Example 2

[0052] Please see Figures 1-3 As shown, the wall hardness tester for prefabricated building engineering testing proposed in this embodiment, based on the first embodiment, further includes a retaining button 234 threadedly connected to the side of the collar 233, and a stabilizing groove 242 opened along the length direction on the side of the moving rod 241, with one end of the retaining button 234 fitting into the stabilizing groove 242.

[0053] More specifically, when the retaining button 234 is inside the stabilizing groove 242 but not completely against the inner wall of the stabilizing groove 242, the moving rod 241 moves smoothly back and forth within the collar 233, thereby adjusting the length of the contact plate 243. When adjusted to the appropriate position, by rotating the retaining button 234, the front end of the retaining button 234 is pressed tightly against the inner wall of the stabilizing groove 242, thereby fixing the adjusted length position of the contact plate 243.

[0054] It should be further explained that by adjusting the length of the abutment plate 243 on the right-angle plate 231 on both sides of the protective cylinder 21, the protective cylinder 21 can be parallel to any wall with slight depressions or protrusions.

[0055] Furthermore, the two sides of the sturdy slide 242 are provided with an adjustment value 244 along its length.

[0056] More specifically, by adjusting the moving rod 241 so that the contact plate 243 is in contact with the wall and the protective cylinder 21 is parallel to the wall, the value of the adjustment distance 244 on the side of the moving rod 241 on both right-angle plates 231 is aligned with the value at the interface of the collar 233, and the deviation is calculated, the value of the wall surface unevenness can be known.

[0057] Furthermore, a connecting ring 212 is fixed to the front end of the protective cylinder 21, and the tail end of the hardness tester 22 is threaded into the connecting ring 212.

[0058] More specifically, the hardness tester 22 has a thread on its side, which is connected to the connecting ring 212 by the threaded connection, so that the hardness tester 22 is inside the protective cylinder 21, and the probe of the hardness tester 22 protrudes out of the connecting ring 212, so that when the protective cylinder 21 is pushed, the probe can fit against the wall.

[0059] Furthermore, a connecting hole 224 is provided on the slider 223.

[0060] One end of the right-angle plate 231 is movably fitted with a fixing button 232, and one end of the fixing button 232 is threaded into the connecting hole 224.

[0061] More specifically, the front end of the fixing button 232 passes through the right angle plate 231 and is threaded into the connecting hole 224 on the slider 223, thereby connecting the right angle plate 231 and the slider 223. When the right angle plate 231 moves, it drives the slider 223 to move at the same time.

[0062] Furthermore, a limiting groove 213 is provided on the side of the protective cylinder 21, and the slider 223 is slidably connected in the limiting groove 213.

[0063] More specifically, the width of slider 223 matches the width of the limiting groove 213, thereby improving the stability of slider 223 sliding.

[0064] 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 wall hardness tester for testing prefabricated building engineering, comprising a connecting rod (1) and a tester (2), characterized in that, Both ends of the connecting rod (1) are movably connected to a detector (2); The testing instrument (2) consists of a protective cylinder (21) and a hardness tester (22). The hardness tester (22) is movably connected to the protective cylinder (21). A connecting plate (221) is installed on the release button of the hardness tester (22). Side plates (222) are fixed at both ends of the connecting plate (221), and sliders (223) are fixed on the side plates (222). The detector (2) also includes a movable part (23) movably connected to the side of the protective cylinder (21). The movable part (23) includes a right-angle plate (231) movably connected to both sides of the protective cylinder (21). One end of the right-angle plate (231) is mounted on the slider (223), and the other end of the right-angle plate (231) is provided with a collar (233). The right-angle plate (231) is movably connected to an abutment (24), which includes an abutment plate (243) movably connected to the front side of the right-angle plate (231). A moving rod (241) is fixed on the back of the abutment plate (243), and the moving rod (241) is movably sleeved in the collar (233).

2. The wall hardness tester for testing prefabricated building engineering according to claim 1, characterized in that: The protective cylinder (21) has a handle (211) fixed at its tail end.

3. The wall hardness tester for testing prefabricated building engineering according to claim 1, characterized in that: The connecting rod (1) consists of a sleeve (101) and a sleeve rod (102), with the sleeve rod (102) movably sleeved at both ends of the sleeve (101). The sleeve (101) has a positioning button (104) threaded on the side at both ends, and one end of the positioning button (104) is attached to the side of the sleeve rod (102).

4. The wall hardness tester for testing prefabricated building engineering according to claim 3, characterized in that: The front end of the sleeve (102) is rotatably connected to a threaded rod (103), and a connecting cylinder (245) is fixed to the back of one end of the right angle plate (231). One end of the threaded rod (103) is threaded into the connecting cylinder (245).

5. A wall hardness tester for testing prefabricated building engineering according to claim 1, characterized in that: The side of the collar (233) is threaded with a retaining button (234), and the side of the moving rod (241) is provided with a stabilizing groove (242) along its length direction. One end of the retaining button (234) is attached to the stabilizing groove (242).

6. A wall hardness tester for testing prefabricated building engineering according to claim 5, characterized in that: The two sides of the stabilizing groove (242) and the edges along its length are provided with adjustable distance values ​​(244).

7. A wall hardness tester for testing prefabricated building engineering according to claim 2, characterized in that: The front end of the protective cylinder (21) is fixed with a connecting ring (212), and the tail end of the hardness tester (22) is threaded into the connecting ring (212).

8. A wall hardness tester for testing prefabricated building engineering according to claim 1, characterized in that: The slider (223) has a connecting hole (224); One end of the right-angle plate (231) is movably fitted with a fixing button (232), and one end of the fixing button (232) is threaded into the connecting hole (224).

9. A wall hardness tester for testing prefabricated building engineering according to claim 7, characterized in that: The protective cylinder (21) has a limiting groove (213) on its side, and the slider (223) is slidably connected in the limiting groove (213).