A foldable bracket penetration mortar strength tester for building inspection

Abstract

This utility model relates to the field of mortar testing technology and discloses a foldable bracket penetration-type mortar strength tester for building testing. It includes an instrument body with a limiting ring fixedly connected to its lower side. The outer wall of the instrument body has two symmetrical arc-shaped rings, a first and a second. Support mechanisms are installed on the outer walls of both arc-shaped rings. A quick-release mechanism is installed inside the first arc-shaped ring. The quick-release mechanism includes a rod, the outer wall of which is slidably connected to the inner walls of the first and second arc-shaped rings. A connecting plate is fixedly connected to one side of the outer wall of the rod. In this utility model, pulling the rod drives the internal linkage mechanism to retract the locking block; subsequently, the spring's reaction force quickly ejects the rod, achieving instantaneous separation of the instrument from the bracket. This design allows for quick disassembly without tools, replacing cumbersome traditional fixing methods and greatly improving the instrument's practicality and operational efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mortar testing technology, and in particular to a foldable bracket penetration mortar strength tester for building testing. Background Technology

[0002] In construction engineering, the mortar strength of masonry structures is one of the key indicators for evaluating project quality and ensuring structural safety. The penetration mortar strength testing method, as a mature on-site non-destructive or minimal-destructive testing technique, calculates the strength value by measuring the depth to which a test pin penetrates the mortar under standard impact energy. It is widely used due to its intuitive operation and lack of damage to the main structure. To ensure the accuracy and reliability of the test results, the testing instrument must be strictly perpendicular to the wall surface being tested during operation, which usually requires the use of a dedicated support to stabilize and position the instrument.

[0003] In existing technologies, the connection between penetration testers and their supports is typically traditional and robust. The support is generally designed as a tripod or portal frame structure, and the instrument itself is secured via one or more threaded connectors (such as long bolts and wing nuts) or through through holes in a positioning plate. During on-site installation, operators need to align the instrument with the mounting position on the support and then tighten the bolts and nuts by hand or with a wrench until the instrument is firmly locked onto the support. The technical principle relies entirely on the strong axial preload provided by the threaded connection to ensure that the instrument does not shift or wobble during impact penetration.

[0004] However, the traditional connection method relying on threaded fastening presents significant operational inconveniences in actual building inspection work. Construction sites are complex environments with dispersed inspection points, often requiring inspectors to inspect walls on multiple floors or in different locations within a single day. This necessitates frequent disassembly, relocation, and reinstallation of the testing instrument from its support. Using bolted fastening methods requires considerable time for each disassembly and reassembly, individually loosening or tightening nuts, especially when wearing gloves or working at heights, making operation even more difficult, and small nuts are easily lost. This cumbersome and inefficient disassembly and reassembly process not only reduces the overall efficiency of the inspection work but also increases the workload of the inspectors. Therefore, a foldable support penetrating mortar strength tester for building inspection is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a foldable bracket penetration-type mortar strength tester for building inspection, aiming to improve the inconvenience of traditional testers' threaded fastening method in testing work that requires frequent disassembly and assembly. This process is time-consuming, cumbersome, and prone to losing parts, especially when wearing gloves or working at heights, which seriously reduces testing efficiency and increases labor intensity.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a foldable bracket penetration mortar strength tester for building testing, comprising an instrument body, a limiting ring fixedly connected to the lower side of the instrument body, and two symmetrical arc-shaped rings, one and two arc-shaped rings, on the outer wall of the instrument body. Both the outer walls of the first and second arc-shaped rings are equipped with support mechanisms, and the first arc-shaped ring is equipped with a quick-release mechanism. The quick-release mechanism includes a plug rod, the outer wall of which is slidably connected to the inner walls of arc-shaped ring one and arc-shaped ring two. A connecting plate is fixedly connected to one side of the outer wall of the plug rod, and a sliding plate is slidably connected inside the plug rod. A pull rod is fixedly connected to one side of the outer wall of the sliding plate. A spring is sleeved on the outer wall of the pull rod. One end of the spring abuts against one side of the outer wall of the sliding plate, and the other end of the spring abuts against one side of the outer wall of the plug rod. A hinge block two is fixedly connected to the other side of the outer wall of the sliding plate. A symmetrical rotating plate is rotatably connected to the outer wall of the hinge block two. A locking block is rotatably connected to one side of the outer wall of the rotating plate. One side of the locking block is rotatably connected to the inner wall of the plug rod through the hinge block one. The spring two is sleeved on the outer wall of the plug rod.

[0007] As a further description of the above technical solution: The support mechanism includes two connecting shafts, one side of which is rotatably connected to the outer wall of arc-shaped ring one and arc-shaped ring two, respectively. A sleeve is provided on the lower side of the connecting shaft, and a base is fixedly connected to the lower surface of the sleeve. An adjustment component is installed on one side of the outer wall of the connecting shaft.

[0008] As a further description of the above technical solution: The adjustment assembly includes a hinge seat, one side of the outer wall of the hinge seat is fixedly connected to one side of the outer wall of the arc ring, and a positioning bolt is provided through the hinge seat and the connecting shaft, and a threaded sleeve is threadedly connected to the outer wall of the positioning bolt.

[0009] As a further description of the above technical solution: A fixed cylinder is fixedly connected to one side of the outer wall of the sleeve, and a T-shaped rod is slidably connected inside the fixed cylinder.

[0010] As a further description of the above technical solution: A positioning block is fixedly connected to one end of the T-shaped rod, a spring is sleeved on the outer wall of the T-shaped rod, and multiple limiting holes are opened inside the connecting shaft. The outer wall of the positioning block is slidably connected in one of the limiting holes.

[0011] As a further description of the above technical solution: One end of the second spring abuts against one side of the outer wall of the connecting plate, and the other end of the second spring abuts against one side of the outer wall of the arc-shaped ring.

[0012] As a further description of the above technical solution: The outer wall of the T-shaped rod is rotatably connected to a lever, and the outer wall of the lever abuts against the outer wall of the fixed cylinder.

[0013] As a further description of the above technical solution: One end of the spring abuts against one side of the outer wall of the positioning block, and the other end of the spring abuts against one side of the outer wall of the fixed cylinder.

[0014] This utility model has the following beneficial effects: 1. In this utility model, by engaging arc-shaped ring one and arc-shaped ring two in the limiting ring on the outside of the instrument body, and then inserting the rod into the inside of arc-shaped ring two, the rod is fixedly engaged on the outside of arc-shaped ring two by the locking block. By pulling the rod, the sliding plate drives the rotating plate on one side of the hinge block two to rotate. The rotating plate drives the locking block to rotate on the outer wall of hinge block one, thereby achieving the effect of driving the locking block to retract into the rod. Then, by the reaction force of spring two, the rod is driven to disengage from the inside of arc-shaped ring two for quick disassembly, thereby improving the practicality of the instrument.

[0015] 2. In this utility model, by rotating the lever, the T-shaped rod pulls the positioning block away from the limiting hole inside the connecting shaft. Then, by pulling the sleeve, the length of the bracket can be adjusted according to the usage requirements. At the same time, by loosening the threaded sleeve, rotating the connecting shaft to flip it over, and then tightening the threaded sleeve, the bracket can be easily folded, thereby improving the practicality of the instrument. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a foldable bracket penetration mortar strength tester for building testing proposed in this utility model. Figure 2 This is a schematic diagram of the limiting ring part of a foldable bracket penetration mortar strength tester for building testing proposed in this utility model. Figure 3 for Figure 2 Enlarged view of point A in the image; Figure 4 This is a schematic diagram of the sleeve structure of a foldable bracket penetration mortar strength tester for building testing proposed in this utility model. Figure 5 For this Figure 4 Enlarged view of point B in the image.

[0017] Legend: 1. Instrument body; 2. Limiting ring; 3. Arc ring one; 4. Arc ring two; 5. Insert rod; 6. Connecting plate; 7. Sliding plate; 8. Pull rod; 9. Spring one; 10. Spring two; 11. Rotating plate; 12. Locking block; 13. Hinge block one; 14. Hinge block two; 15. Hinge seat; 16. Connecting shaft; 17. Positioning bolt; 18. Threaded sleeve; 19. Sleeve; 20. Base; 21. Fixed cylinder; 22. T-shaped rod; 23. Positioning block; 24. Spring three; 25. Pulley. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1 - Figure 5 The present invention provides an embodiment of a foldable bracket penetration mortar strength tester for building testing, comprising an instrument body 1 as the core of the test, a limiting ring 2 for circumferential positioning of the instrument body 1 fixedly connected to the lower side of the instrument body 1, and two symmetrical arc-shaped rings 3 and 4 forming a detachable bracket base on the outer wall of the instrument body 1. The outer walls of the arc-shaped rings 3 and 4 are equipped with support mechanisms for supporting and stabilizing the instrument body 1, and the interior of the arc-shaped ring 3 is equipped with a quick-release mechanism for quick assembly and disassembly. The quick-release mechanism includes a plug rod 5 as the locking and connecting body. The outer wall of the plug rod 5 is slidably connected to the inner walls of the arc-shaped ring 3 and the arc-shaped ring 4 to pass through and lock them. A connecting plate 6 for positioning and transmitting spring force is fixedly connected to one side of the outer wall of the plug rod 5. A sliding plate 7, which serves as the driving component of the internal linkage mechanism, is slidably connected inside the plug rod 5. A pull rod 8 for the operator to apply pulling force is fixedly connected to one side of the outer wall of the sliding plate 7. A spring 9 for automatically resetting the locking mechanism is sleeved on the outer wall of the pull rod 8. One end of the spring 9 abuts against one side of the outer wall of the sliding plate 7, and the other end abuts against one side of the outer wall of the plug rod 5 to provide a continuous resetting force. A hinge block 14, which serves as the first rotation fulcrum of the linkage mechanism, is fixedly connected to the other side of the outer wall of the sliding plate 7. The outer wall of the hinge block 14 is rotatable. A symmetrical rotating plate 11 is connected to the ground to transmit motion. A locking block 12 is rotatably connected to one side of the outer wall of the rotating plate 11. The outer wall of the locking block 12 is rotatably connected to the inner wall of the insertion rod 5 via a hinge block 13, which serves as the second rotation fulcrum. A spring 10 for rapid ejection separation is sleeved on the outer wall of the insertion rod 5. The support mechanism includes two connecting shafts 16, which serve as the upper section of the support. One side of each connecting shaft 16 is rotatably connected to the outer wall of the arc ring 3 and the arc ring 4, respectively. A sleeve 19, which serves as the lower section of the support and allows for telescopic adjustment, is provided on the lower surface of the connecting shaft 16. A base 20, which contacts the ground and provides support, is fixedly connected to the lower surface of the sleeve 19. An adjustment component for folding and fixing the support is installed on one side of the outer wall of the connecting shaft 16.

[0020] Specifically, pulling the lever 8 drives the internal linkage mechanism, including the sliding plate 7, rotating plate 11, hinge block 13, and hinge block 14, causing the locking block 12 to retract. Spring 10 then facilitates the rapid ejection and disassembly of the insertion rod 5. Conversely, after inserting the insertion rod 5, spring 9 automatically drives the locking block 12 to extend and lock it in place. Simultaneously, the support mechanism, connected to the arc-shaped ring via the connecting shaft 16, allows the bracket to be folded and stored, significantly improving the instrument's portability and field operation efficiency.

[0021] Reference Figure 1 - Figure 5The adjustment assembly includes a hinge seat 15, which serves as a fixed base for the folding mechanism. One side of the outer wall of the hinge seat 15 is fixedly connected to one side of the outer wall of the arc-shaped ring 3. A positioning bolt 17, serving as the folding pivot of the bracket, is provided through the hinge seat 15 and the connecting shaft 16. The outer wall of the positioning bolt 17 is threadedly connected to a threaded sleeve 18 for locking or loosening the folding joint. A fixed cylinder 21, which accommodates the bracket length locking mechanism, is fixedly connected to one side of the outer wall of the sleeve 19. A T-shaped rod 22, serving as the moving body of the locking mechanism, is slidably connected inside the fixed cylinder 21. One end of the T-shaped rod 22 is fixedly connected to a positioning block 23 that extends into a limiting hole to perform locking. A spring 3 24, which provides automatic locking and restoring force, is sleeved on the outer wall of the T-shaped rod 22. The inner wall of the connecting shaft 16... Multiple limiting holes are provided for the insertion of positioning blocks 23 to achieve graded adjustment. The outer wall of the positioning block 23 is slidably connected to one of the limiting holes to complete the length fixation. One end of the second spring 10 abuts against one side of the outer wall of the connecting plate 6, and the other end abuts against one side of the outer wall of the arc ring 3, so as to provide the power to pop out the insertion rod 5 when unlocking. The outer wall of the T-shaped rod 22 is rotatably connected to a lever 25 for the operator to apply force to unlock the telescopic mechanism. The outer wall of the lever 25 abuts against the outer wall of the fixed cylinder 21, forming an eccentric wheel or lever structure to pull the T-shaped rod 22. One end of the third spring 24 abuts against one side of the outer wall of the positioning block 23, and the other end abuts against one side of the outer wall of the fixed cylinder 21, thereby continuously applying a locking force to the positioning block 23.

[0022] Specifically, loosening the threaded sleeve 18 releases the lock on the axial point of the positioning bolt 17, allowing the connecting shaft 16 to rotate freely. After folding into place, tightening again secures it. Its telescopic function is achieved by rotating the lever 25, which uses its eccentric structure to pull the T-shaped rod 22, causing the positioning block 23 to disengage from the limiting hole. This allows the sleeve 19 to slide relative to the connecting shaft 16 to adjust the bracket length. After releasing the lever, the spring 3 24 automatically resets and locks the positioning block 23.

[0023] Working principle: When using this mortar strength tester, during installation, firstly, arc-shaped ring 3 and arc-shaped ring 4 are aligned and engaged with the limiting ring 2 on the lower side of the instrument body 1 from both sides. Then, the quick-release mechanism's insertion rod 5 is passed through the through hole of arc-shaped ring 3 and inserted into the interior of arc-shaped ring 4. In the default state, spring 9 acts on the sliding plate 7, and through the linkage of hinge block 14 and rotating plate 11, the locking block 12 rotates outward around hinge block 13 and extends outward from the outer wall of the insertion rod 5, thus automatically engaging with the outer side of arc-shaped ring 4, completing the quick and easy installation of the instrument body 1 and the bracket. During use, the support mechanism can be adjusted. To adjust the bracket length, rotate the lever 25. The lever 25 moves the T-shaped rod 22, causing the positioning block 23 at one end to overcome the spring force of the spring 24 and disengage from the limiting hole inside the connecting shaft 16. At this point, the sleeve 19 can be pulled to adjust the length. Once in position, release the lever 25. The positioning block 23 will automatically reset under the action of the spring 24 and engage in the new limiting hole. To fold the bracket, loosen the threaded sleeve 18 on the adjusting assembly, allowing the connecting shaft 16 to rotate freely around the positioning bolt 17. After flipping it to the folded position, retighten the threaded sleeve 18 to secure it. During disassembly, the operator pulls the lever 8 outward. The lever 8 causes the sliding plate 7 to slide inside the insertion rod 5, which in turn drives the hinge block 14 and the rotating plate 11, causing the locking block 12 to retract inward and fully retract into the insertion rod 5, releasing the lock on the arc ring 4. Once the lock is released, the spring 10, which is compressed on the outside, immediately releases its reaction force, quickly ejecting the entire insertion rod 5 from inside the arc ring 4, thereby achieving instantaneous separation of the instrument body 1 from the bracket and achieving the effect of rapid disassembly.

[0024] 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 foldable bracket penetration-type mortar strength tester for building inspection, characterized in that, The instrument includes a main body (1), a limit ring (2) is fixedly connected to the lower side of the main body (1), and two symmetrical arc rings (3 and 4) are provided on the outer wall of the main body (1). Both the outer walls of the arc rings (3 and 4) are equipped with support mechanisms, and the arc rings (3) are equipped with quick-release mechanisms. The quick-release mechanism includes a plug rod (5), the outer wall of which is slidably connected to the inner walls of arc-shaped ring one (3) and arc-shaped ring two (4). A connecting plate (6) is fixedly connected to one side of the outer wall of the plug rod (5). A sliding plate (7) is slidably connected inside the plug rod (5). A pull rod (8) is fixedly connected to one side of the outer wall of the sliding plate (7). A spring (9) is sleeved on the outer wall of the pull rod (8). One end of the spring (9) abuts against one side of the outer wall of the sliding plate (7). The other end of spring 1 (9) abuts against one side of the outer wall of the insert rod (5). The other side of the outer wall of the sliding plate (7) is fixedly connected to hinge block 2 (14). The outer wall of hinge block 2 (14) is rotatably connected to a left-right symmetrical rotating plate (11). One side of the outer wall of the rotating plate (11) is rotatably connected to a locking block (12). One side of the outer wall of the locking block (12) is rotatably connected to the inner wall of the insert rod (5) through hinge block 1 (13). Spring 2 (10) is sleeved on the outer wall of the insert rod (5).

2. The foldable bracket penetration mortar strength tester for building testing according to claim 1, characterized in that: The support mechanism includes two connecting shafts (16), one side of which is rotatably connected to the outer wall of the first arc ring (3) and the second arc ring (4), respectively. A sleeve (19) is provided on the lower side of the connecting shaft (16), and a base (20) is fixedly connected to the lower surface of the sleeve (19). An adjustment component is installed on one side of the outer wall of the connecting shaft (16).

3. The foldable bracket penetration mortar strength tester for building inspection according to claim 2, characterized in that: The adjustment assembly includes a hinge seat (15), one side of the outer wall of the hinge seat (15) is fixedly connected to one side of the outer wall of the arc ring (3), and a positioning bolt (17) is provided through the hinge seat (15) and the connecting shaft (16), and a threaded sleeve (18) is threadedly connected to the outer wall of the positioning bolt (17).

4. The foldable bracket penetration mortar strength tester for building inspection according to claim 3, characterized in that: A fixed cylinder (21) is fixedly connected to one side of the outer wall of the sleeve (19), and a T-shaped rod (22) is slidably connected inside the fixed cylinder (21).

5. The foldable bracket penetration mortar strength tester for building inspection according to claim 4, characterized in that: One end of the T-shaped rod (22) is fixedly connected to a positioning block (23), and a spring three (24) is sleeved on the outer wall of the T-shaped rod (22). Multiple limiting holes are opened inside the connecting shaft (16), and the outer wall of the positioning block (23) is slidably connected in one of the limiting holes.

6. The foldable bracket penetration mortar strength tester for building testing according to claim 1, characterized in that: One end of the second spring (10) abuts against one side of the outer wall of the connecting plate (6), and the other end of the second spring (10) abuts against one side of the outer wall of the arc ring (3).

7. A foldable bracket penetration mortar strength tester for building inspection according to claim 5, characterized in that: The outer wall of the T-shaped rod (22) is rotatably connected to a lever (25), and the outer wall of the lever (25) abuts against the outer wall of the fixed cylinder (21).

8. A foldable bracket penetration mortar strength tester for building inspection according to claim 5, characterized in that: One end of the spring three (24) abuts against one side of the outer wall of the positioning block (23), and the other end of the spring three (24) abuts against one side of the outer wall of the fixing cylinder (21).

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