Concrete column member top concrete defect detection device

Abstract

The utility model discloses a concrete column member top concrete defect detection device, which belongs to the technical field of concrete detection, and comprises an outer cylinder, a middle cylinder, an inner cylinder and a knocking component, the middle cylinder is sleeved in the outer cylinder, the inner cylinder is sleeved in the middle cylinder, the bottom end of the outer cylinder is detachably connected with a bottom cover, and the knocking component is arranged on the bottom cover. The bottom cover is connected with the inner cylinder in a magnetic attraction mode. According to the concrete defect detection device for the top of the concrete column member, the middle cylinder is matched with the first locking assembly to achieve extension locking of the middle cylinder to the outer cylinder, extension locking of the inner cylinder to the middle cylinder is achieved through the second locking assembly, and due to the fact that one or more middle cylinders can be sequentially arranged between the inner cylinder and the outer cylinder in a sleeving mode, two-stage or multi-stage extension is achieved; and the problems that long sticks and connecting sticks are needed, and storage is inconvenient are solved, and the portability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete detection, and particularly relates to a detection device for concrete defects at the top of a concrete column member. Background Art

[0002] Columns made of reinforced concrete materials are the most basic load-bearing members in various engineering structures such as houses, bridges, and hydraulic engineering. They are commonly used as pillars for floor slabs, bridge piers, foundation columns, struts of towers and trusses. The concrete treatment at the top of concrete column members is very crucial. If the dust on the original base concrete during secondary pouring and the original construction waste are not cleaned up, it will affect the bonding between the surface layer concrete and the original base. The traditional interface treatment is to sprinkle cement slurry to achieve the bonding of new and old concrete, but the bonding strength of the cement slurry can no longer meet the construction requirements of current commercial concrete. If the interface bonding treatment of the base is not in place, it will have a great impact on the subsequent occurrence of hollowing.

[0003] Currently, for the hollowing caused by concrete defects, generally workers use a stick to tap different areas of the concrete and judge by listening to the sound emitted by the impact with their ears. Since the tops of some concrete column members are relatively high, workers need to use a relatively long tapping stick.

[0004] For existing devices, such as a detection device for concrete defects at the top of a concrete column member shown in the authorized announcement number CN220508870U, which includes a stick, the top end of the stick is movably connected with a tapping ball, an adjusting mechanism is arranged inside the stick, and a fixing mechanism is arranged at the bottom end of the tapping ball. When the above patent is used, although the extension of the stick is realized by sleeving the stick and the connecting rod, in actual use, since it is difficult to set multiple levels of extension by means of a clamping block, when facing a relatively high concrete member, a relatively long stick and a connecting rod are required to tap the top of the concrete, which is inconvenient for storage.

[0005] Therefore, we propose a detection device for concrete defects at the top of a concrete column member to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to solve the problem in the prior art that a relatively long stick is required and it is inconvenient for storage, and to propose a detection device for concrete defects at the top of a concrete column member.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A device for detecting concrete defects at the top of a concrete column member, comprising an outer cylinder, a middle cylinder, an inner cylinder and a knocking component. The middle cylinder is sleeved inside the outer cylinder, the inner cylinder is sleeved inside the middle cylinder, the bottom end of the outer cylinder is detachably connected with a bottom cover, and the bottom cover is magnetically connected with the inner cylinder;

[0009] Both the top of the inner side of the outer cylinder and the bottom of the outer side of the middle cylinder are provided with mutually matching first flanges. A first cavity is formed between the outer cylinder and the middle cylinder through the two first flanges, and a first locking component for locking the two first flanges is arranged in the first cavity;

[0010] Both the top of the inner side of the middle cylinder and the bottom of the outer side of the inner cylinder are provided with mutually matching second flanges. A second cavity is formed between the middle cylinder and the inner cylinder through the two second flanges, and a second locking component for locking the two second flanges is arranged in the second cavity;

[0011] The knocking component includes a placement seat and a knocking ball fixed on the placement seat. The placement seat is detachably connected to the top end of the inner cylinder, and the outer side of the placement seat extends to the outside of the inner cylinder.

[0012] Preferably, the first locking component includes first locking blocks respectively fixed on the opposite faces of the two first flanges, and the two first locking blocks are detachably connected by threads.

[0013] Preferably, the second locking component includes second locking blocks respectively fixed on the opposite faces of the two second flanges, and the two second locking blocks are detachably connected by threads.

[0014] Preferably, when the middle cylinder and the inner cylinder both move to the bottom of the outer cylinder, the bottom surface of the placement seat is attached to the top surface of the middle cylinder.

[0015] Preferably, magnets attracting each other are embedded at the center of the top surface of the bottom cover and the center of the bottom surface of the inner cylinder.

[0016] Preferably, a vertical stud is fixed on the bottom surface of the placement seat, and a threaded hole for matching the stud is provided on the top surface of the inner cylinder.

[0017] Preferably, a buffer sleeve is fixed on the outer side of the outer cylinder.

[0018] In summary, the technical effects and advantages of the present utility model: for this device for detecting concrete defects at the top of a concrete column member, since the middle cylinder is arranged between the outer cylinder and the inner cylinder, the middle cylinder cooperates with the first locking component to realize the extended locking of the middle cylinder to the outer cylinder, and the inner cylinder cooperates with the second locking component to realize the extended locking of the inner cylinder to the middle cylinder. Since one or more middle cylinders can be sequentially sleeved between the inner cylinder and the outer cylinder, two-stage or multi-stage extension can be achieved, avoiding the problem of inconvenient storage due to the need for a long stick and a connecting stick, and improving the portability of the device.

[0019] In addition, the bottom cover and the inner cylinder are magnetically connected by a magnet, so that the inner cylinder is restricted at the bottom of the outer cylinder during storage. At the same time, the placement seat at the top of the inner cylinder presses down the middle cylinder when being stored, restricting the middle cylinder at the bottom of the outer cylinder as well, thereby improving the stability during storage. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0022] Figure 3 is a schematic cross-sectional diagram after the present utility model is extended;

[0023] Figure 4 is a schematic cross-sectional diagram of the present utility model during storage.

[0024] In the figure: 1. outer cylinder; 2. middle cylinder; 3. inner cylinder; 4. bottom cover; 5. first flange; 6. first cavity; 7. second flange; 8. second cavity; 9. placement seat; 10. knocking ball; 11. first locking block; 12. second locking block; 13. magnet; 14. stud; 15. buffer sleeve. Detailed Description of the Preferred Embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] Referring to Figures 1-3 , a concrete column member top concrete defect detection device includes an outer cylinder 1, a middle cylinder 2, an inner cylinder 3, and a knocking assembly. The middle cylinder 2 is sleeved inside the outer cylinder 1, the inner cylinder 3 is sleeved inside the middle cylinder 2, and the bottom end of the outer cylinder 1 is detachably connected with a bottom cover 4. There is a magnetic connection between the bottom cover 4 and the inner cylinder 3.

[0027] At the top inside the outer cylinder 1 and at the bottom outside the middle cylinder 2, there are first flanges 5 that cooperate with each other. A first cavity 6 is formed between the outer cylinder 1 and the middle cylinder 2 through the two first flanges 5. Inside the first cavity 6, there is a first locking assembly for locking the two first flanges 5.

[0028] At the top inside the middle cylinder 2 and at the bottom outside the inner cylinder 3, there are second flanges 7 that cooperate with each other. A second cavity 8 is formed between the middle cylinder 2 and the inner cylinder 3 through the two second flanges 7. Inside the second cavity 8, there is a second locking assembly for locking the two second flanges 7.

[0029] The knocking assembly includes a placement seat 9 and a knocking ball 10 fixed on the placement seat 9. The placement seat 9 is detachably connected to the top end of the inner cylinder 3, and the outside of the placement seat 9 extends to the outside of the inner cylinder 3.

[0030] It should be noted that due to the replicability of this structure, a plurality of middle cylinders 2 from large to small can be successively sleeved between the outer cylinder 1 and the inner cylinder 3 to achieve multi-stage extension. In the following, a scheme with one middle cylinder 2 is used to illustrate in conjunction with the accompanying drawings.

[0031] When using the concrete column member top concrete defect detection device, hold the placement seat 9 and pull out the inner cylinder 3 outward. When the two second locking blocks 12 in the second cavity 8 are in contact, hold the middle cylinder 2 and rotate the inner cylinder 3 clockwise until the two second locking blocks 12 are locked and in contact with the second flange 7, that is, the extension locking of the inner cylinder 3 is completed. Then pull out the middle cylinder 2 outward and rotate the middle cylinder 2 by a similar principle to complete the extension locking of the middle cylinder 2. Then you can hold the outer cylinder 1 and tap the top of the concrete member through the knocking ball 10.

[0032] When quick extension locking is required, one hand can hold the inner cylinder 3 and the other hand can hold the outer cylinder 1, and rotate the inner cylinder 3 until both the two first locking blocks 11 and the two second locking blocks 12 are locked, so as to quickly achieve extension locking and improve the assembly efficiency.

[0033] After the knocking is completed, rotate the middle cylinder 2 and the inner cylinder 3 in the reverse direction in sequence, and then the inner cylinder 3 can be moved downward until the magnet 13 connects the inner cylinder 3 and the bottom cover 4, and the placement seat 9 restricts the middle cylinder 2 inside, that is, the storage of the device is completed.

[0034] The upper end of the bottom cover 4 can be detachably connected to the bottom end of the outer cylinder 1 through threads. When parts need to be replaced, rotate and remove the bottom cover 4, and then the middle cylinder 2 and the inner cylinder 3 can be pulled out from the bottom of the outer cylinder 1 for replacement.

[0035] The first locking assembly includes first locking blocks 11 respectively fixed on the opposite faces of the two first flanges 5, and the two first locking blocks 11 are detachably connected through threads. The second locking assembly includes second locking blocks 12 respectively fixed on the opposite faces of the two second flanges 7, and the two second locking blocks 12 are detachably connected through threads. The locking of the outer cylinder 1 and the middle cylinder 2 is realized through the cooperation of the two first locking blocks 11 and threads, and the locking of the middle cylinder 2 and the inner cylinder 3 is realized through the cooperation of the two second locking blocks 12 and threads. When multi-stage extension is required, only similar third flanges and third locking assemblies need to be added between adjacent middle cylinders 2.

[0036] When the middle cylinder 2 and the inner cylinder 3 both move to the bottom of the outer cylinder 1, the bottom surface of the placement seat 9 is in contact with the top surface of the middle cylinder 2, so as to ensure that when the inner cylinder 3 is magnetically connected to the bottom cover 4, the placement seat 9 can restrict the middle cylinder 2 inside the outer cylinder 1 and lock it, avoiding the movement of the middle cylinder 2 inside the outer cylinder 1 during storage and improving the storage stability.

[0037] Refer to Figures 2-4, at the center of the top surface of the bottom cover 4 and the center of the bottom surface of the inner cylinder 3, there are embedded magnets 13 that attract each other. The magnetic attraction connection between the bottom cover 4 and the inner cylinder 3 is realized through the magnets 13. The embedded setting can avoid the interference of the thickness of the magnets 13 on the movement of the inner cylinder 3, and also avoid the problem that when the inner cylinder 3 moves and collides with the bottom cover 4, the two magnets 13 directly contact and collide, ensuring the stability of the device.

[0038] A vertical stud 14 is fixedly provided on the bottom surface of the placement seat 9, and a threaded hole for mating with the stud 14 is provided on the top surface of the inner cylinder 3. The detachable connection between the placement seat 9 and the inner cylinder 3 is realized through the cooperation of the stud 14 and the threaded hole. When the knocking ball 10 is damaged, the placement seat 9 can be rotated and removed to replace the knocking ball 10.

[0039] In order to improve the holding comfort during knocking, a buffer sleeve 15 is fixedly provided on the outer side of the outer cylinder 1 to provide buffering for the hand during knocking. A hanging ring can be provided on the bottom surface of the bottom cover 4 for easy carrying.

[0040] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A detection device for concrete defects at the top of a concrete column member, comprising an outer cylinder (1), a middle cylinder (2), an inner cylinder (3) and a knocking assembly, characterized in that, The middle cylinder (2) is sleeved inside the outer cylinder (1), the inner cylinder (3) is sleeved inside the middle cylinder (2), the bottom end of the outer cylinder (1) is detachably connected with a bottom cover (4), and the bottom cover (4) is magnetically connected to the inner cylinder (3); At the top inside of the outer cylinder (1) and the bottom outside of the middle cylinder (2), there are first flanges (5) that cooperate with each other. A first cavity (6) is formed between the outer cylinder (1) and the middle cylinder (2) through the two first flanges (5). A first locking assembly for locking the two first flanges (5) is provided in the first cavity (6); At the top inside of the middle cylinder (2) and the bottom outside of the inner cylinder (3), there are second flanges (7) that cooperate with each other. A second cavity (8) is formed between the middle cylinder (2) and the inner cylinder (3) through the two second flanges (7). A second locking assembly for locking the two second flanges (7) is provided in the second cavity (8); The knocking assembly includes a placing seat (9) and a knocking ball (10) fixed on the placing seat (9). The placing seat (9) is detachably connected to the top end of the inner cylinder (3), and the outside of the placing seat (9) extends to the outside of the inner cylinder (3).

2. The concrete column member top concrete defect detection device according to claim 1, characterized in that, The first locking assembly includes first locking blocks (11) respectively fixed on the facing surfaces of the two first flanges (5). The two first locking blocks (11) are detachably connected by threads.

3. The concrete column member top concrete defect detection device according to claim 2, characterized in that, The second locking assembly includes second locking blocks (12) respectively fixed on the facing surfaces of the two second flanges (7). The two second locking blocks (12) are detachably connected by threads.

4. The concrete column member top concrete defect detection device according to claim 1, characterized in that, When both the middle cylinder (2) and the inner cylinder (3) move to the bottom of the outer cylinder (1), the bottom surface of the placing seat (9) fits against the top surface of the middle cylinder (2).

5. The concrete column member top concrete defect detection device according to claim 4, characterized in that, Magnets (13) that attract each other are embedded at the center of the top surface of the bottom cover (4) and the center of the bottom surface of the inner cylinder (3).

6. The concrete column member top concrete defect detection device according to claim 4, characterized in that, A vertical stud (14) is fixed on the bottom surface of the placing seat (9), and a threaded hole for mating with the stud (14) is provided on the top surface of the inner cylinder (3).

7. The concrete column member top concrete defect detection device according to claim 1, characterized in that, A buffer sleeve (15) is fixed on the outside of the outer cylinder (1).

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