Concrete rebound detection device
By using mechanical sliding positioning and a liftable support frame in the concrete rebound detection device, the problem of difficulty in maintaining the verticality and unstable force of the detection device during concrete rebound detection is solved, achieving more accurate detection results and more accurate detection results. High detection accuracy.
Patent Information
- Application Number
- CN202420190143.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-01-26
AI Technical Summary
In concrete rebound detection, due to the difference in personnel height and the height of the area to be inspected, it is difficult to independently determine whether the rebound instrument axis is perpendicular to the concrete test surface, and errors are easily caused during multi-point inspection.
A concrete rebound detection device is designed, which uses mechanical sliding positioning and a liftable support frame. The position of the rebound detector is adjusted through the sliding mechanism and lifting motor to ensure that the axis is perpendicular to the test surface, and through the 16-square grid Auxiliary grid improves the accuracy of detection position.
It improves the accuracy of the detection results, solves the problem of being unable to maintain vertical testing and unstable force when holding the test instrument, ensures the accuracy of multi-point detection positions, and avoids the problem of insufficient hand-held height when detecting at high places.
Smart Images
Figure CN222379512U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of concrete detection, and specifically relates to a concrete rebound detection device. Background Art
[0002] Concrete rebound test is a method of estimating concrete strength by using a spring-driven heavy hammer to hit the concrete surface through a hitting rod (force transmission rod) and measuring the distance the heavy hammer is rebounded. The rebound value (ratio of the rebound distance to the initial length of the spring) is used as an indicator related to strength. During the whole process of operating the rebound hammer, personnel need to pay attention to the posture of holding the rebound hammer. One hand holds the middle part of the rebound hammer to play a role in straightening; the other hand holds the tail of the instrument to apply pressure to the instrument, which also plays an auxiliary role in straightening. The operating key points of the rebound hammer are: ensure that the axis of the rebound hammer is always perpendicular to the concrete test surface, and use force Evenly and slowly, straighten and align with the test surface. However, when personnel hold the rebound hammer for inspection, due to the difference in personnel height or the height factor of the area to be inspected, it is difficult for personnel to independently judge whether the axis of the rebound hammer is perpendicular to the concrete test surface. At the same time, in actual inspection, the number of measurement areas of concrete components should not be less than 10. Generally, a 16-grid detection method is adopted, which undoubtedly requires personnel to independently judge the detection position. Inexperienced people may cause large errors. At the same time, it is necessary to spend a lot of energy and time on whether the axis of the rebound hammer is perpendicular to the concrete test surface. In view of the existing problems, a concrete rebound detection device is proposed. Utility Model Content
[0003] In order to solve the above-mentioned personnel height difference or the height factor of the area to be inspected, which makes it difficult for personnel to independently judge whether the axis of the rebound hammer is perpendicular to the concrete test surface, and at the same time, in actual inspection, the number of measurement areas of concrete components should not be less than 10, and a 16-grid detection method is generally adopted, which undoubtedly requires personnel to independently judge the detection position. Inexperienced personnel may cause large errors, and at the same time, it is necessary to spend a lot of energy and time on whether the axis of the rebound hammer is perpendicular to the concrete test surface. The basic concept of the technical solution adopted by the utility model is:
[0004] A concrete rebound detection device comprises a fixed frame and a rebound detector, wherein a sliding mechanism is arranged on the frame body of the fixed frame, the sliding mechanism is used to adjust the position of the rebound detector, and the sliding mechanism comprises a lifting sleeve, a lifting motor is fixedly installed on the outer side of the lifting sleeve, a gear is fixedly connected to the transmission shaft of the lifting motor, and a through hole is opened on the outer side of the lifting sleeve, the through hole corresponds to the gear and is movably sleeved therewith;
[0005] A translation motor is fixedly installed on the outer side of the lifting sleeve, a threaded rod is fixedly connected to the transmission shaft on the inner side of the translation motor, the other end of the threaded rod is movably connected to the outer side of the lifting sleeve on the other side, and a sliding rod is fixedly connected to the inner side of the lifting sleeve.
[0006] As a preferred embodiment of the utility model, the upper end of the rebound detector is fixedly connected with a translation sleeve, the sliding hole opened inside the translation sleeve corresponds to the sliding rod and is slidably connected with the sliding rod, and the lower end of the rebound detector is fixedly connected with a threaded sleeve, the threaded hole opened inside the threaded sleeve corresponds to the threaded rod and is threadedly connected with the threaded rod.
[0007] As a preferred embodiment of the utility model, the longitudinal rods on both sides of the fixed frame correspond to the lifting sleeves and are slidably connected therewith, and tooth grooves are provided on the outer sides of the longitudinal rods on both sides of the fixed frame, and the tooth grooves correspond to the gears and are meshed therewith.
[0008] As a preferred embodiment of the utility model, through holes are opened at the four corners of the fixed frame, a sliding rod is movably sleeved in the through hole, a buffer spring is sleeved and installed on the rod body of the sliding rod, and the other end of the sliding rod is fixedly connected to a grid frame, and a grille is fixedly connected to the inside of the grid frame.
[0009] As a preferred embodiment of the utility model, the lower end of the fixed frame is movably connected to a fixed rod, the other end of the fixed rod is fixedly connected to a fixed platform, a hydraulic cylinder is movably installed on the upper surface of the fixed platform, the top end of the telescopic rod at the upper end of the hydraulic cylinder is fixedly connected to a connecting rod, and the upper end of the connecting rod is movably connected to the middle part of the upper end of the fixed frame.
[0010] As a preferred embodiment of the utility model, a display control panel is fixedly connected to the side of the fixed platform, and a lifting rod is fixedly connected to the lower end surface of the fixed platform, a telescopic sleeve is sleeved and installed on the lower end of the lifting rod, and a base is fixedly connected to the lower end of the telescopic sleeve.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] The utility model adopts a mechanical sliding positioning method to solve the defects of the inability to maintain vertical testing and unstable force in the handheld mode, so that the detection result is more accurate. At the same time, a 16-grid auxiliary grid method is adopted to ensure that the multi-point detection position is more accurate. Furthermore, a liftable support frame is adopted to solve the problem of insufficient handheld height when detecting high positions.
[0013] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In the attached picture:
[0015] Figure 1 It is a front view schematic diagram of a concrete rebound detection device;
[0016] Figure 2 It is a schematic diagram of a support mechanism of a concrete rebound detection device;
[0017] Figure 3 A schematic diagram of a sliding frame of a concrete rebound detection device;
[0018] Figure 4 It is a schematic diagram of a detection mechanism of a concrete rebound detection device;
[0019] In the figure: 1. base; 2. telescopic sleeve; 3. lifting rod; 4. display control panel; 5. fixed platform; 6. hydraulic cylinder; 7. rebound detector; 8. connecting rod; 9. grille; 10. slide rod; 11. buffer spring; 12. sliding rod; 13. lifting sleeve; 14. grid frame; 15. tooth groove; 16. fixed frame; 17. threaded rod; 18. fixed rod; 19. translation sleeve; 20. threaded sleeve; 21. lifting motor; 22. translation motor; 23. gear. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.
[0021] like Figures 1 to 4 As shown, a concrete rebound detection device comprises a fixed frame 16 and a rebound detector 7, a sliding mechanism is arranged on the frame of the fixed frame 16, the sliding mechanism is used to adjust the position of the rebound detector 7, and the sliding mechanism comprises a lifting sleeve 13, a lifting motor 21 is fixedly installed on the outer side of the lifting sleeve 13, a gear 23 is fixedly connected to the transmission shaft of the lifting motor 21, and a through hole is opened on the outer side of the lifting sleeve 13, the through hole corresponds to the gear 23, and is movably sleeved therewith;
[0022] A translation motor 22 is fixedly installed on the outer side of the lifting sleeve 13, and a threaded rod 17 is fixedly connected to the transmission shaft on the inner side of the translation motor 22. The other end of the threaded rod 17 is movably connected to the outer side of the lifting sleeve 13 on the other side, and the inner side of the lifting sleeve 13 is fixedly connected to the sliding rod 12.
[0023] In this setting, the utility model adopts a mechanical sliding positioning method to solve the defects of the inability to maintain vertical testing and unstable force in the handheld mode, so that the detection result is more accurate. At the same time, a 16-grid auxiliary grid method is adopted to ensure that the multi-point detection position is more accurate. Furthermore, a liftable support frame is used to solve the problem of insufficient handheld height when detecting high positions.
[0024] like Figures 1 to 4 As shown, in a specific embodiment, the upper end of the rebound detector 7 is fixedly connected with a translation sleeve 19, the sliding hole opened inside the translation sleeve 19 corresponds to the sliding rod 12, and is slidably connected therewith, and the lower end of the rebound detector 7 is fixedly connected with a threaded sleeve 20, the threaded hole opened inside the threaded sleeve 20 corresponds to the threaded rod 17, and is threadedly connected therewith.
[0025] In this configuration, the translation sleeve 19 and the sliding rod 12 are used to limit the angle of the rebound detector 7 to ensure that the rebound detector 7 remains perpendicular to the wall, while the threaded sleeve 20 and the threaded rod 17 are used to adjust and control the horizontal position of the rebound detector 7.
[0026] like Figures 1 to 4 As shown, in a specific embodiment, the longitudinal rods on both sides of the fixed frame 16 correspond to the lifting sleeve 13 and are slidably connected therewith, and tooth grooves 15 are provided on the outer sides of the longitudinal rods on both sides of the fixed frame 16, and the tooth grooves 15 correspond to the gears 23 and are meshed therewith.
[0027] In this configuration, the tooth groove 15 and the gear 23 function to adjust and control the vertical position of the rebound detector 7 .
[0028] like Figures 1 to 4 As shown, in a specific embodiment, through holes are opened at the four corners of the fixed frame 16, and a sliding rod 10 is movably sleeved in the through hole. A buffer spring 11 is sleeved and installed on the rod body of the sliding rod 10, and the other end of the sliding rod 10 is fixedly connected to a grid frame 14, and the inside of the grid frame 14 is fixedly connected to a grille 9.
[0029] In this setting, when using the device, first move the device to the wall position that needs to be detected, and then correct the angle by extending and retracting the hydraulic cylinder 6 so that the grid frame 14 fits tightly against the wall.
[0030] like Figures 1 to 4 As shown, in a specific embodiment, the lower end of the fixed frame 16 is movably connected to a fixed rod 18, the other end of the fixed rod 18 is fixedly connected to a fixed platform 5, a hydraulic cylinder 6 is movably mounted on the upper surface of the fixed platform 5, the top end of the telescopic rod at the upper end of the hydraulic cylinder 6 is fixedly connected to a connecting rod 8, and the upper end of the connecting rod 8 is movably connected to the middle part of the upper end of the fixed frame 16.
[0031] In this arrangement, the angle is corrected by extending and retracting the hydraulic cylinder 6 so that the grid frame 14 fits tightly against the wall.
[0032] like Figures 1 to 4 As shown, in the specific implementation, a display control panel 4 is fixedly connected to the side of the fixed platform 5, and a lifting rod 3 is fixedly connected to the lower end surface of the fixed platform 5, a telescopic sleeve 2 is sleeved and installed on the lower end of the lifting rod 3, and a base 1 is fixedly connected to the lower end of the telescopic sleeve 2.
[0033] In this setting, the control program of the display control panel 4 is used to control the displacement and start and stop of the rebound detector 7. The device will move the position of the rebound detector 7 through the cooperation of the lifting motor 21 and the translation motor 22.
[0034] The implementation principle of a concrete rebound detection device in this embodiment is as follows:
[0035] The utility model adopts a mechanical sliding positioning method to solve the defects of the handheld method being unable to maintain vertical testing and unstable force, so that the detection result is more accurate. At the same time, a 16-grid auxiliary grid method is adopted to ensure that the multi-point detection position is more accurate. In addition, a liftable support frame is adopted to solve the problem of insufficient handheld height when detecting a high position. When using the device, first move the device to the wall position to be detected, and then correct the angle by extending and retracting the hydraulic cylinder 6, so that the grid frame 14 is closely attached to the wall, and then the display screen is controlled. The control program of the control panel 4 controls the displacement and start and stop of the rebound detector 7. The device will move the position of the rebound detector 7 through the cooperation of the lifting motor 21 and the translation motor 22; the translation sleeve 19 and the sliding rod 12 are used to limit the angle of the rebound detector 7 to ensure that the rebound detector 7 remains perpendicular to the wall, while the threaded sleeve 20 and the threaded rod 17 are used to adjust and control the horizontal position of the rebound detector 7; secondly, the tooth groove 15 and the gear 23 are used to adjust and control the vertical position of the rebound detector 7.
Claims
1. A concrete rebound detection device, comprising a fixing frame (16) and a rebound detector (7), characterized in that: A sliding mechanism is provided on the frame body of the fixed frame (16), the sliding mechanism is used to adjust the position of the rebound detector (7), and the sliding mechanism comprises a lifting sleeve (13), a lifting motor (21) is fixedly installed on the outer side of the lifting sleeve (13), a gear (23) is fixedly connected to the transmission shaft of the lifting motor (21), and a through hole is opened on the outer side of the lifting sleeve (13), the through hole corresponds to the gear (23) and is movably sleeved therewith; A translation motor (22) is fixedly mounted on the outer side of the lifting sleeve (13), a threaded rod (17) is fixedly connected to the transmission shaft on the inner side of the translation motor (22), the other end of the threaded rod (17) is movably connected to the outer side of the lifting sleeve (13) on the other side, and the inner side of the lifting sleeve (13) is fixedly connected to the sliding rod (12).
2. A concrete rebound detection device according to claim 1, characterized in that: The upper end of the rebound detector (7) is fixedly connected to a translation sleeve (19), the sliding hole provided inside the translation sleeve (19) corresponds to the sliding rod (12) and is slidably sleeved therewith, and the lower end of the rebound detector (7) is fixedly connected to a threaded sleeve (20), the threaded hole provided inside the threaded sleeve (20) corresponds to the threaded rod (17) and is threadedly sleeved therewith.
3. A concrete rebound detection device according to claim 1, characterized in that: The longitudinal rods on both sides of the fixed frame (16) correspond to the lifting sleeve (13) and are slidably sleeved therewith, and tooth grooves (15) are provided on the outer sides of the longitudinal rods on both sides of the fixed frame (16), and the tooth grooves (15) correspond to the gears (23) and are meshed therewith.
4. A concrete rebound detection device according to claim 3, characterized in that: Through holes are provided at the four corners of the fixed frame (16), a slide rod (10) is movably sleeved in the through hole, a buffer spring (11) is sleeved and installed on the rod body of the slide rod (10), and the other end of the slide rod (10) is fixedly connected to a grid frame (14), and a grille (9) is fixedly connected inside the grid frame (14).
5. A concrete rebound detection device according to claim 3, characterized in that: The lower end of the fixed frame (16) is movably connected to a fixed rod (18), the other end of the fixed rod (18) is fixedly connected to a fixed platform (5), a hydraulic cylinder (6) is movably mounted on the upper surface of the fixed platform (5), the top end of the telescopic rod at the upper end of the hydraulic cylinder (6) is fixedly connected to a connecting rod (8), and the upper end of the connecting rod (8) is movably connected to the middle part of the upper end of the fixed frame (16).
6. A concrete rebound detection device according to claim 5, characterized in that: A display control panel (4) is fixedly connected to the side of the fixed platform (5), and a lifting rod (3) is fixedly connected to the lower end surface of the fixed platform (5). A telescopic sleeve (2) is sleeved and installed at the lower end of the lifting rod (3), and a base (1) is fixedly connected to the lower end of the telescopic sleeve (2).