Concrete hardness detection device for constructional engineering

Abstract

The utility model relates to the technical field of hardness detection, in particular to a concrete hardness detection device for constructional engineering, which comprises a rebound apparatus main body, one end of the rebound apparatus main body is connected with a threaded cylinder cover, the other end of the rebound apparatus main body is provided with an external threaded cylinder, and a metal probe is inserted into the rebound apparatus main body; the grinding assembly is connected to the end, away from the rebound apparatus body, of the threaded cylinder cover; and the supporting assembly comprises a positioning pipe, the positioning pipe is in threaded connection with the exterior of the external threaded cylinder, one end of the positioning pipe is fixedly connected with a positioning ring, a telescopic pipe is embedded in the positioning pipe and the positioning ring, and the telescopic end of the telescopic pipe is connected with a supporting ring. Through the arrangement of the supporting assembly, the stability of the metal probe during detection can be improved, and through the contact between the large-area supporting ring and the concrete wall surface, the inclination of the metal probe caused by uneven stress in the detection process can be effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of hardness testing technology, specifically to a concrete hardness testing device for building engineering. Background Technology

[0002] The main purpose of concrete hardness testing is to assess the strength and quality of concrete and ensure the safety and durability of concrete structures. Among the commonly used concrete hardness testing devices is the concrete rebound hammer, which uses non-destructive testing technology to assess the compressive strength of concrete components and is one of the most commonly used concrete testing devices on the market.

[0003] When using existing concrete rebound hammers, one hand holds the middle part of the rebound hammer to help it stand upright, while the other hand holds the tail of the instrument to apply pressure and also to help it stand upright. After the metal probe is perpendicular to the concrete, it is pushed and squeezed. However, because the diameter of the metal probe is small, the stability is low during the pressing process, which can easily cause the instrument to slip sideways, affecting the accuracy of its test data and reducing its ease of use. Utility Model Content

[0004] The purpose of this utility model is to provide a concrete hardness testing device for building engineering, so as to solve the problem mentioned in the background art that due to the small diameter of the metal probe, its stability is low during the pressing process, which easily leads to the instrument slipping and thus reduces its ease of use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a concrete hardness testing device for building engineering, comprising:

[0006] The rebound hammer body has a threaded sleeve cover connected to one end and an external threaded sleeve provided at the other end. A metal probe is inserted into the inside of the rebound hammer body.

[0007] A grinding assembly is connected to the end of the threaded sleeve that is away from the main body of the rebound spring;

[0008] A support assembly includes a positioning tube that is threaded to the outside of an externally threaded cylinder. One end of the positioning tube is fixedly connected to a positioning ring. A telescopic tube is embedded inside the positioning tube and the positioning ring, and a support ring is connected to the telescopic end of the telescopic tube.

[0009] Preferably, the positioning tube is wrapped around the outside of the rebound spring body and the external threaded cylinder, and the minimum inner diameter of the positioning tube is smaller than the diameter of the external threaded cylinder.

[0010] Preferably, the outer wall of the positioning tube is provided with an anti-slip rubber sleeve, and the diameter of the positioning ring is larger than the diameter of the positioning tube.

[0011] Preferably, there are four sets of telescopic tubes, and the four sets of telescopic tubes are circumferentially distributed inside the positioning tube. The telescopic end of the telescopic tube is provided with a stepped threaded post, and the external thread of the threaded post is connected with a nut.

[0012] Preferably, the support ring has a stepped hole at the telescopic end of the telescopic tube, and a nut is abutted inside the stepped hole. The diameter of the support ring is larger than the diameter of the positioning ring, and a through hole larger than the diameter of the metal probe is opened at the center of the support ring.

[0013] Preferably, the polishing assembly includes a ball handle, one end of which is fixedly connected to a sealing plate, the other end of which is fixedly connected to an externally threaded mounting tube, and the other end of which is fixedly connected to a polishing stone.

[0014] Preferably, the external threaded mounting tube is threadedly connected to the threaded sleeve cover, and the grinding stone is housed inside the threaded sleeve cover. The diameter of the sealing plate is equal to the outer diameter of the threaded sleeve cover.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: the utility model can improve the stability of metal probe detection by setting up the support component. The contact between the large-area support ring and the concrete wall surface can effectively prevent the metal probe from tilting due to uneven force during the detection process, thereby ensuring its vertical detection and improving the detection accuracy of the device. At the same time, the setting of the grinding component can facilitate the grinding of uneven concrete wall surfaces, ensuring the flatness of its surface and further improving the convenience of its detection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure in the first explosive state of this utility model;

[0017] Figure 2 This is a schematic diagram of the second explosive state structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 4 This is an exploded cross-sectional view of the support component of this utility model.

[0020] Figure 5 This is a schematic diagram of the overall structure of the grinding component of this utility model.

[0021] In the diagram: 1. Rebound hammer body; 11. Metal probe; 12. Threaded sleeve cover; 13. External threaded sleeve; 2. Support assembly; 21. Positioning tube; 22. Positioning ring; 23. Telescopic tube; 24. Support ring; 3. Grinding assembly; 31. Ball handle; 32. Sealing plate; 33. External threaded mounting tube; 34. Grinding stone. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 One embodiment of this utility model is a concrete hardness testing device for building engineering, comprising:

[0024] The rebound hammer body 1 has a threaded sleeve 12 connected to one end and an external threaded sleeve 13 at the other end. A metal probe 11 is inserted inside the rebound hammer body 1. The grinding component 3 is connected to the end of the threaded sleeve 12 away from the rebound hammer body 1. The grinding component 3 enables the device to have a certain grinding function, so that if the concrete surface to be tested is uneven, it can be ground by the grinding component 3 to make the surface to be tested flat. The detachable structure makes the operation simple and convenient.

[0025] The support assembly 2 includes a positioning tube 21, which is threaded to the outside of the external threaded cylinder 13. One end of the positioning tube 21 is fixedly connected to a positioning ring 22. A telescopic tube 23 is embedded inside the positioning tube 21 and the positioning ring 22. The telescopic end of the telescopic tube 23 is connected to a support ring 24. Through this structure, the support ring 24 and the telescopic tube 23 can cooperate to assist in guiding and limiting the compression of the metal probe 11. By increasing the compression contact area of ​​the support ring 24, side slippage during the detection process is avoided, thereby improving the stability of the device in detection and use.

[0026] Furthermore, the positioning tube 21 is wrapped around the outside of the rebound hammer body 1 and the external threaded cylinder 13. The minimum inner diameter of the positioning tube 21 is smaller than the diameter of the external threaded cylinder 13. The outer wall of the positioning tube 21 is provided with an anti-slip rubber sleeve. The diameter of the positioning ring 22 is larger than the diameter of the positioning tube 21. By setting the positioning tube 21, the stability of the hand can be improved, and the hand can be prevented from slipping during the test. At the same time, the positioning ring 22 can also play a good blocking and positioning role for the hand.

[0027] Furthermore, four sets of telescopic tubes 23 are provided, and the four sets of telescopic tubes 23 are circumferentially distributed inside the positioning tube 21. The telescopic end of the telescopic tube 23 is provided with a stepped threaded post, and the external thread of the threaded post is connected to a nut. The support ring 24 has a stepped hole corresponding to the telescopic end of the telescopic tube 23, and the nut is abutted inside the stepped hole. The diameter of the support ring 24 is larger than the diameter of the positioning ring 22, and the center of the support ring 24 has a through hole larger than the diameter of the metal probe 11. The telescopic performance of the telescopic tube 23 is used in conjunction with the support ring 24. During the test, the metal probe 11 and the support ring 24 simultaneously contact the concrete wall and press the instrument. The larger diameter support ring 24 can play a good supporting and limiting role, effectively preventing the instrument from tilting during the test, thereby improving the accuracy of the data detection of the device.

[0028] Furthermore, the polishing assembly 3 includes a ball handle 31, one end of which is fixedly connected to a sealing plate 32, and the other end of the sealing plate 32 is fixedly connected to an external threaded mounting tube 33. The other end of the external threaded mounting tube 33 is fixedly connected to a polishing stone 34. The external threaded mounting tube 33 is threadedly connected to the threaded sleeve cover 12, and the polishing stone 34 is housed inside the threaded sleeve cover 12. The diameter of the sealing plate 32 is equal to the outer diameter of the threaded sleeve cover 12. The structure of the ball handle 31 facilitates handheld use, thereby improving the convenience of polishing operation with the polishing stone 34. At the same time, the structure of the ball handle 31 reduces the pressure of the sharp edges on the hand when the device is pressed for detection.

[0029] Working principle: The rebound hammer body 1 and metal probe 11 used in this application are both products that can be purchased directly from the market. Their principles and connection methods are existing technologies known to those skilled in the art, so they will not be described in detail here. When using this utility model, first hold the positioning tube 21 with one hand and place the other hand against the outside of the ball handle 31. Then, after the metal probe 11 and the support ring 24 are in perpendicular contact with the concrete wall to be tested, force is applied to the ball handle 31 to squeeze the instrument, thereby causing the metal probe 11 to retract into the rebound hammer body 1. Through the response of the internal components of the rebound hammer body 1, the metal probe 11 is rebounded, and the strength of the concrete in that area can be detected.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A concrete hardness testing device for construction engineering, characterized in that, Include: The rebound hammer body (1), one end of the rebound hammer body (1) is connected with the threaded barrel cover (12), and the other end of the rebound hammer body (1) is provided with an external threaded barrel (13), the inside of the rebound hammer body (1) is inserted with a metal probe (11); Polishing assembly (3), the polishing assembly (3) is connected at the end of the threaded barrel cover (12) away from the rebound hammer body (1); Supporting assembly (2), the supporting assembly (2) includes a positioning tube (21), and the positioning tube (21) is threadedly connected outside the external threaded barrel (13), one end of the positioning tube (21) is fixedly connected with a positioning ring (22), the inside of the positioning tube (21) and the positioning ring (22) is inlaid with a telescopic tube (23), and the telescopic end of the telescopic tube (23) is connected with a support ring (24).

2. The concrete hardness detection device for construction engineering according to claim 1, characterized in that: The positioning tube (21) is wrapped outside the rebound hammer body (1) and the external threaded barrel (13), and the minimum inner diameter of the positioning tube (21) is smaller than the diameter of the external threaded barrel (13).

3. The concrete hardness detection device for construction engineering according to claim 1, characterized in that: The outer wall of the positioning tube (21) is provided with an anti-skid rubber sleeve, and the diameter of the positioning ring (22) is greater than the diameter of the positioning tube (21).

4. The concrete hardness detection device for construction engineering according to claim 1, characterized in that: The telescopic tube (23) is provided with four groups, and the four groups of telescopic tubes (23) are circumferentially distributed inside the positioning tube (21), and the telescopic end of the telescopic tube (23) is provided with a stepped threaded column, and the outside of the threaded column is threadedly connected with a nut.

5. The concrete hardness detection device for construction engineering according to claim 4, characterized in that: The support ring (24) is provided with a stepped hole corresponding to the telescopic end of the telescopic tube (23), and the inside of the stepped hole is abutted with a nut, the diameter of the support ring (24) is greater than the diameter of the positioning ring (22), and the center of the support ring (24) is provided with a through hole larger than the diameter of the metal probe (11).

6. The concrete hardness detection device for construction engineering according to claim 1, characterized in that: The polishing assembly (3) includes a ball handle (31), one end of the ball handle (31) is fixedly connected with a sealing plate (32), the other end of the sealing plate (32) is fixedly connected with an external threaded mounting tube (33), the other end of the external threaded mounting tube (33) is fixedly connected with a polishing stone (34).

7. The concrete hardness detection device for construction engineering according to claim 6, characterized in that: The external threaded mounting tube (33) is threadedly connected with the threaded barrel cover (12), and the polishing stone (34) is received into the inside of the threaded barrel cover (12), and the diameter of the sealing plate (32) is equal to the outer diameter of the threaded barrel cover (12).

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