Resiliometer calibrating device

Abstract

The utility model discloses a rebound apparatus calibrating device, and relates to the field of rebound apparatuses, the rebound apparatus calibrating device comprises a base, a clamping mechanism and a detection assembly are separately mounted on the outer wall of the top of the base, the clamping mechanism comprises two connecting seats fixedly connected to the base, and a same mounting plate is slidably connected between the two connecting seats; a clamping assembly is installed on the outer wall of the top of the installation plate, the detection assembly comprises an adjusting seat fixedly connected to the base, and an installation seat is fixedly connected to the outer wall of one side of the adjusting seat. According to the device, the clamping assembly is arranged on the clamping mechanism, the clamps are driven to move through the two screws in the clamping assembly, and the adjusting precision of the two clamps is improved through the screw driving mode, so that the rebound apparatus is conveniently and stably clamped, and the problem that an existing calibrating device is inconvenient to clamp the rebound apparatus is solved.

Description

Technical Field

[0001] This application relates to the field of rebound hammers, and in particular to rebound hammer calibration devices. Background Technology

[0002] A rebound hammer utilizes a spring-driven hammer that strikes the concrete surface via a striking rod, generating an instantaneous elastic deformation and restoring force. The hammer then drives a pointer to rebound, indicating the rebound distance—the rebound value. Currently, the most widely used rebound hammer in China is the pointer-type rebound hammer, which is widely used in concrete compressive strength testing during construction, municipal engineering, and road and bridge construction. The basic principle of a rebound hammer is that a spring-driven hammer strikes a striking rod perpendicular to the concrete surface with constant kinetic energy, causing localized deformation of the concrete and absorbing some energy. The remaining energy is converted into the rebound kinetic energy of the hammer. When all the rebound kinetic energy is converted into potential energy, the hammer rebounds to its maximum distance. The instrument displays the maximum rebound distance as the rebound value (the ratio of the maximum rebound distance to the initial length of the spring).

[0003] The testing equipment for rebound hammers is used to verify key performance parameters such as the working length of the spring, the extension length of the spring, the release position of the spring, and the spring's take-off position. This equipment plays a crucial role in the accuracy of rebound hammer measurements. Existing testing devices clamp the rebound hammer using fixtures during actual use. However, the fixture mechanism of existing testing devices mainly consists of a combination of springs, pull rods, fixtures, and cams. The stroke of the fixture depends primarily on the specifications of the cam. Over time, the fixture will wear down. Since the specifications of the cam are fixed, the stroke of the fixture is also fixed. Once the fixture wears down, the rebound hammer cannot be effectively clamped. Utility Model Content

[0004] To address the problem that existing rebound hammer calibration devices are inconvenient for clamping the rebound hammer, this application provides a rebound hammer calibration device.

[0005] The rebound hammer calibration device provided in this application adopts the following technical solution:

[0006] A rebound hammer testing device includes a base. A clamping mechanism and a testing component are respectively installed on the top outer wall of the base. The clamping mechanism includes two connecting seats fixedly connected to the base, and the two connecting seats are slidably connected to the same mounting plate. A clamping component is installed on the top outer wall of the mounting plate. The testing component includes an adjusting seat fixedly connected to the base, and a mounting seat is fixedly connected to one side outer wall of the adjusting seat.

[0007] By adopting the above technical solution, the clamping mechanism on the base facilitates the clamping of the rebound hammer, and the setting of the detection component facilitates the calibration of the rebound hammer. After the rebound hammer is fixed, it is calibrated in conjunction with the detection component. The setting of the clamping component facilitates the clamping and fixing of the rebound hammer.

[0008] Preferably, the clamping assembly includes a clamping seat fixedly connected to the base, and two outer walls of the clamping seat are rotatably connected to screws. One end of the two screws is connected to each other, and a clamp is screwed to the outer wall of each screw. The clamp has an L-shaped structure, and one end of one of the screws is fixedly connected to a handwheel.

[0009] By adopting the above technical solution, the clamping seat facilitates the installation of the two screws, the two screws facilitate the adjustment of the position of the two clamps, and the handwheel facilitates the manual adjustment of the movement of the two clamps.

[0010] Preferably, mounting rods are fixedly connected to both outer walls of the clamping seat, and the two clamps are slidably connected to the outer walls of the two mounting rods respectively.

[0011] By adopting the above technical solution, the clamping seat facilitates the installation of the mounting rod, and the mounting rod facilitates the sliding installation of the auxiliary fixture while restricting the fixture from rotating with the screw.

[0012] Preferably, the top outer wall of the mounting plate is fixedly connected to two L-shaped baffles, and one of the baffles is rotatably connected to a cover plate on its top outer wall. The top outer wall of the mounting plate is fixedly connected to a support base.

[0013] By adopting the above technical solution, the clamping and fixing of the auxiliary rebounder is facilitated through the cooperation between the two baffles and the cover plate.

[0014] Preferably, the top outer wall of the adjustment seat is provided with an arc-shaped groove, and a steel drill is placed on the inner wall of the arc-shaped groove.

[0015] By adopting the above technical solution, the steel drill can be easily installed through the arc groove on the adjustment seat.

[0016] Preferably, the top outer wall of the mounting base has an opening, and a connecting plate is slidably connected to the inner wall of the opening. A clamping seat is fixedly connected to one side outer wall of the connecting plate, and the clamping seat is in contact with the steel drill.

[0017] By adopting the above technical solution, the connection plate facilitates the installation of the clamping seat, and when the connection plate drives the clamping seat to descend, it is convenient to directly press the steel drill onto the adjusting seat.

[0018] Preferably, two screw rods are rotatably connected to the inner walls of both sides of the mounting base, and the connecting plate is screwed onto the outer wall of the two screw rods. A worm gear is fixedly connected to one end of each of the two screw rods.

[0019] By adopting the above technical solution, the mounting base facilitates the rotation and installation of the two screws. When the screws rotate, they directly drive the connecting plate to adjust its height. The worm gear facilitates the rotation of the screws.

[0020] Preferably, worm gears are rotatably connected to the inner walls of both sides of the mounting base, and the two worm gear drive shafts are connected together. A rotating disk is rotatably connected to the outer wall of one side of the mounting base, and one end of the rotating disk drive shaft is fixedly connected to one of the worm gears.

[0021] By adopting the above technical solution, the rotating disk directly drives the worm gear to rotate, the worm gear directly drives the worm wheel to rotate, and the worm wheel directly drives the two screws to rotate, thus facilitating the adjustment of the position of the connecting plate.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. This application provides a clamping assembly on the clamping mechanism. The clamping assembly is driven by two screws to move the clamps. The screw drive improves the adjustment accuracy of the two clamps, thereby facilitating the stable clamping of the rebound hammer and solving the problem that existing calibration devices are inconvenient to clamp the rebound hammer.

[0024] 2. This application uses a screw-driven clamp to easily clamp and fix rebound springs of different specifications, and also sets up a mounting base, connecting plate and clamping base in the detection component to facilitate quick assembly and disassembly of the steel drill. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the rebound hammer testing device according to an embodiment of this application;

[0026] Figure 2 This is a schematic diagram illustrating the clamping mechanism structure, which is the main feature of this application embodiment.

[0027] Figure 3 This is a schematic diagram illustrating the clamping assembly structure, which is a key feature of this application.

[0028] Figure 4 This is a schematic diagram illustrating the main structure of the detection component in the embodiments of this application;

[0029] Figure 5 This is a schematic diagram illustrating the cross-sectional structure of the mounting base, which is the main feature of this application embodiment.

[0030] Reference numerals: 1. Base; 2. Clamping mechanism; 3. Detection component; 4. Connecting seat; 5. Mounting plate; 6. Baffle; 7. Cover plate; 8. Support seat; 9. Clamping component; 10. Clamping seat; 11. Screw one; 12. Clamp; 13. Mounting rod; 14. Handwheel; 15. Adjusting seat; 16. Steel drill; 17. Mounting seat; 18. Rotary disc; 19. Connecting plate; 20. Pressing seat; 21. Screw two; 22. Worm; 23. Worm wheel. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0032] This application discloses a rebound hammer testing device.

[0033] Reference Figure 1-3 The rebound tester calibration device includes a base 1, and a clamping mechanism 2 and a testing component 3 are respectively installed on the top outer wall of the base 1;

[0034] Reference Figure 1-3 The clamping mechanism 2 includes two connecting seats 4 fixedly connected to the base 1, and the same mounting plate 5 is slidably connected between the two connecting seats 4. A clamping component 9 is installed on the top outer wall of the mounting plate 5. Two L-shaped baffles 6 are fixedly connected to the top outer wall of the mounting plate 5, and a cover plate 7 is rotatably connected to the top outer wall of one of the baffles 6. A support seat 8 is fixedly connected to the top outer wall of the mounting plate 5. The cooperation between the two baffles 6 and the cover plate 7 facilitates the clamping and fixing of the auxiliary rebound device.

[0035] In use, the rebound spring can be clamped by the clamping mechanism 2 on the base 1. The detection component 3 is set to assist in the calibration of the rebound spring. The rebound spring is fixed and then calibrated by the detection component 3. The clamping component 9 is set to assist in the clamping and fixing of the rebound spring.

[0036] Reference Figure 2-3 The clamping assembly 9 includes a clamping seat 10 fixedly connected to the base 1, and screws 11 are rotatably connected to both outer walls of the clamping seat 10. One end of the two screws 11 is connected to each other, and clamps 12 are screwed to the outer walls of the two screws 11. The clamps 12 have an L-shaped structure. One end of one screw 11 is fixedly connected to a handwheel 14. Mounting rods 13 are fixedly connected to both outer walls of the clamping seat 10. The two clamps 12 are slidably connected to the outer walls of the two mounting rods 13 respectively.

[0037] In use, the clamping seat 10 facilitates the installation of the two screws 11, the two screws 11 facilitate the adjustment of the position of the two clamps 12, the handwheel 14 facilitates the manual adjustment of the movement of the two clamps 12, the clamping seat 10 facilitates the installation of the mounting rod 13, the mounting rod 13 facilitates the sliding installation of the clamps 12, and at the same time restricts the clamps 12 from rotating with the screws 11.

[0038] Reference Figure 4-5 The detection component 3 includes an adjustment seat 15 fixedly connected to the base 1, and a mounting seat 17 fixedly connected to one side of the outer wall of the adjustment seat 15. An arc-shaped groove is opened on the top outer wall of the adjustment seat 15, and a steel drill 16 is placed on the inner wall of the arc-shaped groove. An opening is opened on the top outer wall of the mounting seat 17, and a connecting plate 19 is slidably connected to the inner wall of the opening. A clamping seat 20 is fixedly connected to one side of the outer wall of the connecting plate 19, and the clamping seat 20 is in contact with the steel drill 16. Two screw rods 21 are rotatably connected to the inner walls of both sides of the mounting seat 17. The connecting plate 19 is screwed onto the outer wall of the two screw rods 21. A worm gear 23 is fixedly connected to one end of each of the two screw rods 21. Worms 22 are rotatably connected to the inner walls of both sides of the mounting seat 17, and the two worm gears 22 are connected by a drive shaft. A rotating disk 18 is rotatably connected to one side of the outer wall of the mounting seat 17, and one end of the drive shaft of the rotating disk 18 is fixedly connected to one of the worm gears 22.

[0039] In use, when the rotating disk 18 rotates, it directly drives the two worm gears 22 to rotate. When the worm gears 22 rotate, they directly drive the two screws 21 to rotate through the worm wheel 23. When the two screws 21 rotate, they directly drive the connecting plate 19 to rise and fall. When the connecting plate 19 moves, it can easily drive the clamping seat 20 to rise and fall. When the clamping seat 20 is away from the steel drill 16, it can be disassembled.

[0040] The implementation principle of the rebound hammer testing device in this application embodiment is as follows: In use, the rebound hammer to be tested is first fixed on the clamping assembly 9, the cover plate 7 is opened to place the rebound hammer, and then the handwheel 14 is turned to directly drive the two screws 11 to rotate. When the two screws 11 rotate synchronously, they directly drive the two clamps 12 to move towards or away from each other. When the two clamps 12 move towards each other, they directly press the rebound hammer. During testing, the mounting plate 5 is directly driven to move towards the steel drill 16, which facilitates the testing of the rebound hammer. When the steel drill needs to be disassembled, the rotating disk 18 is rotated. When the rotating disk 18 rotates, it directly drives the two worm gears 22 to rotate. When the worm gears 22 rotate, they directly drive the two screws 21 to rotate through the worm wheel 23. When the two screws 21 rotate, they directly drive the connecting plate 19 to rise and fall. When the connecting plate 19 moves, it is convenient to directly drive the pressing seat 20 to rise and fall. When the pressing seat 20 is away from the steel drill 16, it can be disassembled.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for the verification of a rebound hammer, comprising a base (1), characterised in that: The base (1) top outer wall is respectively provided with clamping mechanism (2) and detection assembly (3), the clamping mechanism (2) includes two connecting seat (4) fixedly connected on the base (1), and the same mounting plate (5) is slidably connected between the two connecting seat (4), the mounting plate (5) top outer wall is provided with clamping assembly (9), the detection assembly (3) includes adjusting seat (15) fixedly connected on the base (1), and the adjusting seat (15) one side outer wall is fixedly connected with the mounting seat (17).

2. The apparatus of claim 1, wherein: The clamping assembly (9) includes clamping seat (10) fixedly connected on the base (1), and the both sides outer wall of clamping seat (10) are rotatably connected with screw one (11), one end of two screw one (11) is connected with each other, the outer wall of two screw one (11) is screwed with clamp (12), and the clamp (12) is L-shaped structure, one end of one screw one (11) is fixedly connected with hand wheel (14).

3. The apparatus of claim 2, wherein: The clamping seat (10) both sides outer wall are fixedly connected with mounting rod (13), two clamps (12) are slidably connected on the outer wall of two mounting rods (13) respectively.

4. The device of claim 3, wherein: The mounting plate (5) top outer wall is fixedly connected with two L-shaped baffle (6), and one of the baffle (6) top outer wall is rotatably connected with cover plate (7), the mounting plate (5) top outer wall is fixedly connected with support seat (8).

5. The device of claim 4, wherein: The adjusting seat (15) top outer wall is provided with arc slot, and the inner wall of arc slot is placed with steel drill (16).

6. The device of claim 5, wherein: The mounting seat (17) top outer wall is provided with opening, and the inner wall of opening is slidably connected with connecting plate (19), one side outer wall of connecting plate (19) is fixedly connected with pressing seat (20), and the pressing seat (20) and steel drill (16) are in contact.

7. A device according to claim 6, wherein: The both sides inner wall of mounting seat (17) is rotatably connected with two screw two (21), the connecting plate (19) is screwed on the outer wall of two screw two (21), and one end of two screw two (21) is fixedly connected with worm wheel (23).

8. The device of claim 7, wherein: The both sides inner wall of mounting seat (17) is rotatably connected with worm (22), and the transmission shafts of two worm (22) are connected, one side outer wall of mounting seat (17) is rotatably connected with rotating disc (18), and one end of rotating disc (18) transmission shaft is fixedly connected on one of worm (22).

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