Detection tool for building main body structure

Abstract

A detection tool for a building main body structure relates to the technical field of building structure detection, a concrete rebound apparatus is composed of a hand-held main body and an impact rod, the impact rod is arranged on the left side of the hand-held main body, a connecting rod is distributed on the annular side wall of the hand-held main body in an equal fillet manner, a movable rod is movably inserted in the connecting rod, and the movable rod is connected with the hand-held main body. Limiting blocks are fixedly arranged at the right ends of the movable rods and movably abut against the interiors of the connecting rods, abutting rings are fixedly arranged at the left ends of the movable rods, control handles are arranged in storage grooves formed in the abutting rings, fixing shafts are fixedly arranged in the storage grooves, and the control handles are rotationally arranged on the fixing shafts in a sleeving mode through bearings. The fixing ring fixedly sleeves the handheld main body, the right end of the connecting rod is connected with the fixing ring, and the fixing ring is provided with a storage limiting mechanism, so that when the building main body is detected, the vertical state of the concrete rebound apparatus and the wall body can be ensured, and the influence on the detection precision is avoided.

Description

A testing tool for the main structure of a building Technical Field

[0001] This utility model relates to the field of building structure testing technology, specifically to a testing tool for the main structure of a building. Background Technology

[0002] In the inspection of building main structures, the concrete rebound hammer is a widely used non-destructive testing tool for quickly assessing the compressive strength of concrete. Its principle is to use a spring-driven impact hammer to strike the concrete surface, measure the rebound value, and then estimate the concrete strength. However, the rebound hammer test mainly depends on the verticality during operation. If the instrument is not perpendicular to the concrete surface, the rebound value will be too low or too high, which will seriously affect the accuracy of the strength estimation result. Therefore, there is an urgent need for a testing tool for building main structures. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing a reasonably designed inspection tool for the main structure of a building, thereby solving the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a concrete rebound hammer, which consists of a handheld body and an impact rod, with the impact rod located on the left side of the handheld body;

[0005] It also includes:

[0006] Connecting rods, of which there are several, are distributed with equal rounded corners on the annular sidewall of the handheld body. A movable rod is movably inserted inside the connecting rod. A limit block is fixedly installed at the right end of the movable rod, and the limit block is movably abutting against the connecting rod.

[0007] A contact ring is fixedly installed at the left end of several movable rods. A control handle is provided in a storage groove on the contact ring. A fixed shaft is fixedly installed in the storage groove. The control handle is rotatably sleeved on the fixed shaft through a bearing.

[0008] A fixing ring is fixedly sleeved on the handheld body, and the right end of the connecting rod is connected to the fixing ring. The fixing ring is provided with a storage limiting mechanism.

[0009] Furthermore, the storage limiting mechanism includes:

[0010] The control ring is rotatably mounted on the fixed ring via a bearing, and several arc-shaped toothed racks are distributed on the inner ring wall with equal rounded corners;

[0011] The rotating rods, which are of several kinds, are rotatably inserted into the left side wall of the fixed ring through bearings with equal rounded corners. The right end of the rotating rod is fixedly provided with a gear that meshes with the arc-shaped rack. The left end of the rotating rod is inserted into the connecting rod and fixedly provided with a limit frame. The limit block is provided with a limit groove that cooperates with the limit frame.

[0012] A No. 1 spring is fixedly installed in a No. 1 cylindrical groove on a fixed ring. A No. 1 positioning block is fixedly installed at the upper end of the No. 1 spring. Two No. 1 grooves that cooperate with the No. 1 positioning block are opened on the inner ring wall of the control ring.

[0013] Furthermore, a second spring is fixedly installed in the second cylindrical groove opened on the inner wall of the storage groove, and a second positioning block is fixedly installed at one end of the second spring. The control handle is provided with a second groove that cooperates with the second positioning block.

[0014] Furthermore, a rectangular groove is provided above the right side wall of the contact ring, and a level is provided inside the rectangular groove.

[0015] Furthermore, the movable rod has several ribs with equal rounded corners distributed on it, and the ribs are movably inserted into the connecting rod.

[0016] Furthermore, a rubber pad is provided on the right side of the handheld body, and the rubber pad has anti-slip texture.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the building main structure testing tool described in this utility model can ensure the verticality of the concrete rebound hammer to the wall when testing the building main structure, thus avoiding affecting the testing accuracy. Attached Figure Description

[0018] Figure 1 is a structural schematic diagram of this utility model.

[0019] Figure 2 is a structural schematic diagram of a specific embodiment of this utility model.

[0020] Figure 3 is an exploded view of the parts of the present invention, including the contact ring, control handle, fixed shaft, and second positioning block.

[0021] Figure 4 is a cross-sectional view of the fixing ring in this utility model.

[0022] Figure 5 is an enlarged view of part A in Figure 4.

[0023] Figure 6 is an exploded view of the movable rod, limiting block, rotating rod, limiting frame and ribs in this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Concrete rebound hammer, 1-1. Handheld body, 1-2. Impact rod, 2. Connecting rod, 3. Movable rod, 4. Limiting block, 5. Contact ring, 6. Storage groove, 7. Control handle, 8. Fixed shaft, 9. Fixed ring, 10. Storage limiting mechanism, 10. Control ring, 10-1. Arc rack, 10-2. Rotating rod, 10-3. Limiting frame, 10-4. Spring No. 1, 10-5. Positioning block No. 1, 10-6. Gear, 10-7. Limiting groove, 11. Columnar groove No. 1, 12. Groove No. 1, 13. Columnar groove No. 2, 14. Positioning block No. 2, 15. Groove No. 2, 16. Level, 17. Rib, 18. Rubber pad, 19. Anti-slip texture, 20. Spring No. 2, 21. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] As shown in Figures 1-6, the specific embodiment adopts the following technical solution: it includes a concrete rebound hammer 1, which consists of a handheld body 1-1 and an impact rod 1-2. The impact rod 1-2 is located on the left side of the handheld body 1-1, and a rubber pad 19 is provided on the right side of the handheld body 1-1. The rubber pad 19 is provided with anti-slip texture 20. The rubber pad 19 can improve the comfort of the operator's hand when pushing the right side of the concrete rebound hammer 1. At the same time, with the cooperation of the anti-slip texture 20, the friction generated when the hand contacts the rubber pad 19 can be increased, reducing the occurrence of hand slippage.

[0028] It also includes:

[0029] Connecting rod 2, there are several connecting rods 2, which are distributed with equal rounded corners on the annular sidewall of the handheld body 1-1. A movable rod 3 is movably inserted into the connecting rod 2. A limit block 4 is fixedly installed at the right end of the movable rod 3. The limit block 4 is movably abutted in the connecting rod 2. Several ribs 18 are distributed with equal rounded corners on the movable rod 3, and the ribs 18 are movably inserted into the connecting rod 2. The ribs 18 can improve the structural strength of the movable rod 3, thereby enabling the movable rod 3 to have stronger load-bearing capacity and avoid easy bending due to external force or collision during the testing process.

[0030] A contact ring 5 is fixedly installed at the left end of several movable rods 3. A control handle 7 is installed in a storage groove 6 on the contact ring 5. A fixed shaft 8 is fixedly installed in the storage groove 6. The control handle 7 is rotatably sleeved on the fixed shaft 8 through a bearing. A second spring 21 is fixedly installed in a second cylindrical groove 14 on the inner wall of the storage groove 6. A second positioning block 15 is fixedly installed at one end of the second spring 21. A second groove 16 is provided on the control handle 7 to cooperate with the second positioning block 15. When the control handle 7 is rotated into the storage groove 6, the second positioning block 15 is pushed by the second spring 21, so that the second positioning block 15 abuts against the second groove 16, thereby limiting the control handle 7 in the storage state. A rectangular groove is provided at the upper position of the right side wall of the contact ring 5. A level 17 is provided in the rectangular groove. The level 17 is used to help the operator to accurately judge the horizontal state of the testing tool during operation.

[0031] A fixing ring 9 is fixedly sleeved on the handheld body 1-1, and the right end of the connecting rod 2 is connected to the fixing ring 9. The fixing ring 9 is provided with a storage limiting mechanism 10.

[0032] The storage limiting mechanism 10 includes:

[0033] Control ring 10-1, the control ring 10-1 is rotatably sleeved on the fixed ring 9 through a bearing, and several arc-shaped racks 10-2 are distributed on the inner ring wall of the control ring 10-1 with equal rounded corners;

[0034] Rotating rod 10-3, there are several rotating rods 10-3, with equal rounded corners, are rotatably inserted into the left side wall of the fixed ring 9 through bearings. The right end of the rotating rod 10-3 is fixedly provided with a gear 10-7 that meshes with the arc-shaped rack 10-2. The left end of the rotating rod 10-3 is inserted into the connecting rod 2 and fixedly provided with a limit frame 10-4. The limit block 4 is provided with a limit groove 11 that cooperates with the limit frame 10-4.

[0035] A first spring 10-5 is fixedly installed in a first cylindrical groove 12 on a fixed ring 9. A first positioning block 10-6 is fixedly installed at the upper end of the first spring 10-5. Two first grooves 13 that cooperate with the first positioning block 10-6 are opened on the inner ring wall of the control ring 10-1. By cooperating with the limiting frame 10-4 in the limiting groove 11, the limiting block 4 can be limited in the connecting rod 2, so that when the concrete rebound hammer 1 is idle, the movable rod 3 can be stored in the connecting rod 2 and fixed.

[0036] When using this utility model, rotating the control ring 10-1 causes the gear 10-7 to rotate via the arc-shaped rack 10-2, and the first positioning block 10-6 disengages from the first groove 13 on one side and abuts against the first groove 13 on the other side, thus limiting the control ring 10-1 in this state. The gear 10-7 drives the rotating rod 10-3 to rotate, and the rotating rod 10-3 drives the limiting frame 10-4 to rotate, allowing the protrusion on the limiting frame 10-4 to rotate to the position corresponding to the opening of the limiting groove 11. Then, after the impact rod 1-2 pops out of the handheld body 1-1, the abutment ring 5 can be pulled to the left. The abutment ring 5 drives the movable rod 3 to move to the left, and the limiting block 4 moves to the left, so that the limiting frame 10-6... -4 disengages from the limiting groove 11 and uses the limiting block 4 to limit the maximum length of the movable rod 3 pulled out from the connecting rod 2. Then, the control handle 7 is flipped outward from the storage groove 6. One hand of the operator can control the contact ring 5 through the control handle 7 and make the contact ring 5 contact the surface of the building wall to be tested. Through the complete contact and fit between the contact ring 5 and the wall surface, the perpendicularity between the concrete rebound hammer 1 and the wall can be ensured. Then, the other hand pushes the handheld body 1-1 towards the wall, so that the impact rod 1-2 enters the handheld body 1-1 to achieve the test. At the same time, the movable rod 3 will also be stored in the connecting rod 2 to ensure the perpendicularity between the concrete rebound hammer 1 and the wall throughout the test process.

[0037] Compared with the prior art, the beneficial effects of this utility model are:

[0038] During the testing process, the contact ring 5 can generate a large contact surface with the wall, and through the cooperation of the connecting rod 2, the movable rod 3, the limiting block 4 and the control handle 7, the perpendicularity between the concrete rebound hammer 1 and the wall can be ensured, thus avoiding affecting the testing accuracy.

[0039] When the concrete rebound hammer 1 is idle, the movable rod 3 can be retracted into the connecting rod 2, and the connecting rod 2 can be fixed by the cooperation of the retraction limiting mechanism 10.

[0040] The rubber pad 19 can improve the comfort of the worker's hand when pushing the right side of the concrete rebound hammer 1. At the same time, with the cooperation of the anti-slip texture 20, it can also increase the friction generated when the hand contacts the rubber pad 19, reducing the occurrence of hand slippage.

[0041] The rib 18 can improve the structural strength of the movable rod 3, thereby enabling the movable rod 3 to have stronger load-bearing capacity and avoid bending easily due to external forces or collisions during the testing process.

[0042] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A testing tool for the main structure of a building, comprising a concrete rebound hammer (1), the concrete rebound hammer (1) consisting of a handheld body (1-1) and an impact rod (1-2), the impact rod (1-2) being located on the left side of the handheld body (1-1); characterized in that, It also includes: a connecting rod (2), which consists of several rods, distributed with equal rounded corners on the annular sidewall of the handheld body (1-1), a movable rod (3) is movably inserted into the connecting rod (2), and a limit block (4) is fixedly provided at the right end of the movable rod (3), and the limit block (4) is movably abutted in the connecting rod (2); an abutting ring (5), which is fixedly provided at the left end of several movable rods (3), and a control handle (7) is provided in the storage groove (6) opened on the abutting ring (5), and a fixed shaft (8) is fixedly provided in the storage groove (6), and the control handle (7) is rotatably sleeved on the fixed shaft (8) through a bearing; and a fixed ring (9), which is fixedly sleeved on the handheld body (1-1), and the right end of the connecting rod (2) is connected to the fixed ring (9), and a storage limit mechanism (10) is provided on the fixed ring (9).

2. The inspection tool for the main structure of a building according to claim 1, characterized in that: The storage limiting mechanism (10) includes: a control ring (10-1), which is rotatably mounted on a fixed ring (9) via a bearing, and several arc-shaped racks (10-2) with equal rounded corners are distributed on the inner ring wall of the control ring (10-1); and several rotating rods (10-3), which are rotatably mounted on the left side wall of the fixed ring (9) via a bearing, and a gear (10-7) that meshes with the arc-shaped racks (10-2) is fixedly installed at the right end of the rotating rods (10-3). The left end is inserted into the connecting rod (2) and a limit frame (10-4) is fixedly installed. A limit groove (11) that cooperates with the limit frame (10-4) is opened on the limit block (4); a first spring (10-5) is fixedly installed in the first cylindrical groove (12) opened on the fixed ring (9). A first positioning block (10-6) is fixedly installed at the upper end of the first spring (10-5). Two first grooves (13) that cooperate with the first positioning block (10-6) are opened on the inner ring wall of the control ring (10-1).

3. The inspection tool for the main structure of a building according to claim 1, characterized in that: A second spring (21) is fixedly installed in the second columnar groove (14) opened on the inner wall of the storage groove (6). A second positioning block (15) is fixedly installed at one end of the second spring (21). A second groove (16) is provided on the control handle (7) to cooperate with the second positioning block (15).

4. The inspection tool for the main structure of a building according to claim 1, characterized in that: A rectangular groove is provided above the right side wall of the contact ring (5), and a level (17) is provided in the rectangular groove.

5. The inspection tool for the main structure of a building according to claim 1, characterized in that: The movable rod (3) has several ribs (18) with rounded corners, and the ribs (18) are movably inserted into the connecting rod (2).

6. The inspection tool for the main structure of a building according to claim 1, characterized in that: The right side of the handheld body (1-1) is provided with a rubber pad (19), and the rubber pad (19) is provided with anti-slip texture (20).

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