Strength detection device for durable concrete

Abstract

The utility model discloses a strength detection device for durable concrete, and relates to the technical field of concrete detection. The device comprises a base, a clamp is arranged at the top of the base, and a strength detector is arranged at the top of the base; and a protection mechanism is arranged at the top of the base. By adopting a double structure of the fixed frame and the protective frame and combining flexible interception of the protective net, double barriers of'flexible interception and rigid interception 'are formed, the protective net absorbs initial impact force of broken stones, the fixed frame intercepts residual fragments, splashing damage is effectively avoided, the protective reliability is remarkably improved, and the service life of the protective net is prolonged. Meanwhile, through the linkage design of a driving motor and a synchronous wheel synchronous belt through a gear rack, synchronous control over moving of the protection frame and folding and unfolding of the protection net is achieved, the protection net is automatically unfolded when the protection frame moves, the protection net is synchronously folded when the protection frame resets, net body loosening or winding is avoided, the operation process is simplified, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of concrete testing technology, and in particular relates to a strength testing device for durable concrete. Background Technology

[0002] As a core material in modern construction engineering, the strength performance of durable concrete directly affects the safety and service life of building structures. Accurate testing of concrete's compressive and flexural strength indicators during production and construction is a crucial aspect of quality control.

[0003] Currently, existing technologies for testing concrete strength primarily focus on the accuracy of pressure loading and data acquisition, but pay insufficient attention to safety protection against concrete fragmentation and splashing during testing, as well as the ease of equipment maintenance. Existing devices have the following significant drawbacks: First, they lack effective splash protection structures, allowing debris generated when concrete test blocks break to easily fly and injure people, posing a safety hazard; second, the protective covers lack self-cleaning capabilities, requiring manual cleaning after prolonged use, reducing testing efficiency.

[0004] To address these issues, we have provided a strength testing device for durable concrete. Utility Model Content

[0005] The purpose of this invention is to provide a strength testing device for durable concrete. By combining a protective mechanism with a cleaning mechanism, it solves the problems of insufficient protection and difficult cleaning during the testing process in existing strength testing devices for durable concrete.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a strength testing device for durable concrete, comprising a base, a clamp on the top of the base, and a strength detector on the top of the base; a protective mechanism on the top of the base, the protective mechanism comprising a fixed frame fixedly connected to the top of the base, a protective frame slidably connected to the inner side of the fixed frame, a fixed roller rotatably connected to one side of the fixed frame via a fixed plate and a bearing seat, and a protective net wound around the surface of the fixed roller; a cleaning mechanism on one side of the fixed frame, the cleaning mechanism comprising a sliding frame fixedly connected to one side of the fixed frame via a mounting plate, a slider slidably connected to the inner side of the sliding frame, and a cleaning roller fixedly connected to one side of the slider.

[0008] The present invention is further configured such that the fixed frame and the protective frame are semi-circular in shape, and the protective frame is made of high-strength transparent polyethylene. The semi-circular design of the fixed frame and the protective frame maximizes the coverage of the test area and reduces blind spots. The high-strength transparent polyethylene has both impact resistance and light transmission, allowing real-time observation of the concrete cracking process, while avoiding misoperation caused by obstruction of vision.

[0009] The present invention is further configured such that a drive motor is fixedly connected to one side of the fixed frame via a mounting rod, a gear is fixedly connected to the output shaft of the drive motor, a rack meshes with the surface of the gear, and the rack is fixedly connected to the inner side of the protective frame. When the drive motor is started, the output shaft of the drive motor drives the gear to rotate, the gear rotation drives the rack, and drives the protective frame to move vertically along the fixed frame, thereby realizing one-button opening and closing of the protective cover.

[0010] The present invention is further configured such that a drive motor is fixedly connected to one side of the fixed frame via a mounting rod, a gear is fixedly connected to the output shaft of the drive motor, a rack meshes with the surface of the gear, and the rack is fixedly connected to the inner side of the protective frame. The output shaft of the drive motor drives the fixed roller to rotate via a first synchronous wheel and a second synchronous wheel, synchronously controlling the opening and closing of the protective net, ensuring that the protective net automatically opens when the protective frame is opened and retracts when it is reset, thus avoiding the net from getting tangled.

[0011] The present invention is further configured such that there are two sliders, and a spring is fixedly connected between the two sliders. The spring provides a continuous clamping force, so that the cleaning roller adapts to the curved surface of the protective frame and improves the cleaning effect.

[0012] The present invention is further configured such that a sliding rod is fixedly connected to the surface of the protective net, and a sliding groove adapted to the sliding rod is opened on the top of the base. The sliding groove is opened on the top of the base and slides in cooperation with the sliding rod to limit the movement trajectory of the protective net, ensure that it remains flat when unfolded, and prevent displacement or wrinkles from affecting the protective effect.

[0013] The present invention is further configured such that a guide plate is fixedly connected to the other end of the protective net, and one side of the guide plate is fixedly connected to the inner side of the protective frame. When the protective frame moves, the guide plate drives the slide rod to slide along the slide groove through the protective net, thereby linking the retraction and extension of the protective net.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model adopts a dual structure of fixed frame and protective frame, combined with the flexible interception of protective net, to form a dual barrier of "flexible interception and rigid blocking". The protective net absorbs the initial impact force of the gravel, and the fixed frame intercepts the residual fragments, effectively avoiding splashing injuries and significantly improving the reliability of protection. At the same time, the drive motor realizes the synchronous control of the movement of the protective frame and the opening and closing of the protective net through the linkage design of gear rack and synchronous pulley and synchronous belt. When the protective frame moves, the protective net automatically unfolds and when it resets, the protective net retracts synchronously, avoiding the net from loosening or tangling, simplifying the operation process and improving the detection efficiency.

[0016] 2. This utility model uses a slider and spring in conjunction with a cleaning roller in a cleaning mechanism to automatically wipe the outer surface of the protective frame during its movement, removing residual debris or dust, maintaining the transparency of the protective frame, eliminating the need for frequent manual cleaning, reducing maintenance costs, and extending the service life of the equipment.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional view of a strength testing device for durable concrete.

[0020] Figure 2 This is a diagram showing the fit between gears and racks in a strength testing device for durable concrete.

[0021] Figure 3 This is a diagram showing the fit between the sliding frame and the slider in a strength testing device for durable concrete.

[0022] Figure 4 This is a diagram showing the fit between the fixed frame and the protective frame in a strength testing device for durable concrete.

[0023] Figure 5 This is a diagram showing the fit between the first and second synchronous pulleys in a strength testing device for durable concrete.

[0024] In the attached diagram: 1. Base; 2. Clamp; 3. Strength detector; 4. Fixing frame; 5. Protective frame; 6. Fixing roller; 7. Protective net; 8. Sliding frame; 9. Sliding block; 10. Cleaning roller; 11. Drive motor; 12. Gear; 13. Rack; 14. First synchronous pulley; 15. Second synchronous pulley; 16. Spring; 17. Sliding rod; 18. Slide groove; 19. Guide plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figures 1-5 This utility model is a strength testing device for durable concrete, including a base 1, a clamp 2 on the top of the base 1, and a strength detector 3 on the top of the base 1; a protective mechanism is provided on the top of the base 1, the protective mechanism includes a fixed frame 4 fixedly connected to the top of the base 1, a protective frame 5 slidably connected to the inner side of the fixed frame 4, a fixed roller 6 rotatably connected to one side of the fixed frame 4 through a fixed plate and a bearing seat, and a protective net 7 wrapped around the surface of the fixed roller 6; a cleaning mechanism is provided on one side of the fixed frame 4, the cleaning mechanism includes a sliding frame 8 fixedly connected to one side of the fixed frame 4 through a mounting plate, a sliding block 9 slidably connected to the inner side of the sliding block 9, and a cleaning roller 10 fixedly connected to one side of the sliding frame 10.

[0028] Further details: The test area is centrally located at the top of the base 1. The clamp 2 is used to fix the concrete test block. The strength detector 3 is vertically installed directly above the clamp 2, and the compressive strength of the concrete is detected in real time through a pressure sensor. The fixed frame 4 covers the test area. The protective frame 5 is a semi-circular transparent cover, nested inside the fixed frame 4 and slidably connected, allowing it to move in a ring. The protective net 7 is a high-strength metal wire mesh, with one end wrapped around the fixed roller 6 and the other end extending to the inside of the protective frame 5. During the test, the protective net 7 unfolds to form the first flexible barrier to intercept flying debris. The protective frame 5 and the fixed frame 4 close to form the second rigid protective layer, providing double protection for operational safety. The cleaning roller 10 is covered with a cleaning sponge and fixed between the two sliders 9, adhering to the outer surface of the protective frame 5. During the movement of the protective frame 5, the cleaning roller 10 is driven to move along its outer wall, automatically scraping away dust and debris residue while maintaining transparency for easy observation.

[0029] Example 2

[0030] Please see Figures 1-5Based on embodiment 1, the fixed frame 4 and the protective frame 5 are semi-circular in shape. The protective frame 5 is made of high-strength transparent polyethylene. A drive motor 11 is fixedly connected to one side of the fixed frame 4 by a mounting rod. A gear 12 is fixedly connected to the output shaft of the drive motor 11. A rack 13 meshes with the surface of the gear 12. The rack 13 is fixedly connected to the inside of the protective frame 5. A first synchronous pulley 14 is fixedly connected to the output shaft of the drive motor 11. A second synchronous pulley 15 is connected to the first synchronous pulley 14 by a synchronous belt. The axis of the second synchronous pulley 15 is fixedly connected to the surface of the fixed roller 6. There are two sliders 9, and a spring 16 is fixedly connected between the two sliders 9. A sliding rod 17 is fixedly connected to the surface of the protective net 7. A sliding groove 18 that matches the sliding rod 17 is opened on the top of the base 1. A guide plate 19 is fixedly connected to the other end of the protective net 7. One side of the guide plate 19 is fixedly connected to the inside of the protective frame 5.

[0031] Further details: The semi-circular design of the fixed frame 4 and the protective frame 5 maximizes the coverage of the test area and reduces blind spots. The high-strength transparent polyethylene combines impact resistance and light transmission, allowing real-time observation of the concrete cracking process while avoiding misoperation due to obstructed vision. When the drive motor 11 starts, its output shaft drives the gear 12 to rotate. The rotation of the gear 12 drives the rack 13, causing the protective frame 5 to move vertically along the fixed frame 4, realizing one-button opening and closing of the protective cover. At the same time, the output shaft of the drive motor 11 drives the fixed roller through the first synchronous pulley 14 and the second synchronous pulley 15. 6. Rotation and synchronous control of the protective net 7 ensure that the protective net 7 automatically unfolds when the protective frame 5 unfolds and retracts when resetting, avoiding tangling of the net. Spring 16 provides continuous clamping force, allowing the cleaning roller 10 to adaptively conform to the curved surface of the protective frame 5, improving the cleaning effect. The slide groove 18 is opened at the top of the base 1 and slides in cooperation with the slide rod 17 to limit the movement trajectory of the protective net 7, ensuring that it remains flat when unfolded and preventing displacement or wrinkles from affecting the protective effect. When the protective frame 5 moves, the guide plate 19 drives the slide rod 17 to slide along the slide groove 18 through the protective net 7, linking the unfolding and retraction of the protective net 7.

[0032] The working principle of this utility model is as follows: the concrete test block is placed on the top of the base 1 and clamped and fixed by the clamp 2. The drive motor 11 is started, and the output shaft of the drive motor 11 drives the gear 12 to rotate. The gear 12 meshes with the rack 13 to drive the protective frame 5 to move. At the same time, the output shaft of the drive motor 11 drives the fixed roller 6 to rotate through the first synchronous wheel 14 and the second synchronous wheel 15, and synchronously controls the opening and closing of the protective net 7. The protective net 7 is unfolded to a vertical state by the guide plate 19, and the sliding rod 17 moves forward along the sliding groove 18 to tighten the net surface and form a closed protective space.

[0033] The strength detector 3 applies pressure to the concrete test block until the test block breaks. The flying debris is first intercepted by the protective net 7, the large fragments fall to the base 1, and the small fragments that are not blocked are blocked by the fixed frame 4 and the protective frame 5, completely avoiding splash damage.

[0034] The drive motor 11 reverses, resets the protective frame 5 and retracts the protective net 7 simultaneously. When the protective frame 5 moves, the spring 16 presses the cleaning roller 10 to wipe the outer surface of the protective frame 5, removes residual dirt, eliminates manual maintenance, and ensures long-term visibility.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. Apparatus for detecting the strength of durable concrete, comprising a base (1), characterised in that: The base (1) is provided with a clamp (2) on top and a strength detector (3) on top. The base (1) is provided with a protective mechanism on the top. The protective mechanism includes a fixed frame (4) fixedly connected to the top of the base (1), a protective frame (5) slidably connected to the inner side of the fixed frame (4), a fixed roller (6) rotatably connected to one side of the fixed frame (4) through a fixed plate and a bearing seat, and a protective net (7) wrapped around the surface of the fixed roller (6). A cleaning mechanism is provided on one side of the fixed frame (4). The cleaning mechanism includes a sliding frame (8) fixedly connected to one side of the fixed frame (4) by a mounting plate, a slider (9) slidably connected to the inner side of the sliding frame (8), and a cleaning roller (10) fixedly connected to one side of the slider (9).

2. The device for detecting the strength of durable concrete according to claim 1, characterized by: The fixed frame (4) and the protective frame (5) are semi-circular in shape, and the protective frame (5) is made of high-strength transparent polyethylene material.

3. The device for detecting the strength of durable concrete according to claim 1, characterized by: A drive motor (11) is fixedly connected to one side of the fixed frame (4) by a mounting rod. A gear (12) is fixedly connected to the output shaft of the drive motor (11). A rack (13) meshes with the surface of the gear (12). The rack (13) is fixedly connected to the inside of the protective frame (5).

4. The device for detecting the strength of durable concrete according to claim 3, characterized by: The output shaft of the drive motor (11) is fixedly connected to a first synchronous pulley (14), and the first synchronous pulley (14) is connected to a second synchronous pulley (15) via a synchronous belt drive. The axis of the second synchronous pulley (15) is fixedly connected to the surface of the fixed roller (6).

5. The device for detecting the strength of durable concrete according to claim 1, characterized by: There are two sliders (9), and a spring (16) is fixedly connected between the two sliders (9).

6. The device for detecting the strength of durable concrete according to claim 1, characterized by: The protective net (7) is fixedly connected to a sliding rod (17), and the top of the base (1) is provided with a sliding groove (18) that matches the sliding rod (17).

7. The device for detecting the strength of durable concrete according to claim 1, characterized by: The other end of the protective net (7) is fixedly connected to a guide plate (19), and one side of the guide plate (19) is fixedly connected to the inner side of the protective frame (5).

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