A device for impact resistance testing of building materials

Abstract

The utility model discloses a kind of building material detection is used to impact resistance test device, belong to impact resistance test device technical field. Including box seat, positioning table, material positioner and drop hammer impact unit, the box seat front end is equipped with cover plate groove;The box seat inside is fixed with guide plate;The box seat top is equipped with impact port;The positioning table is slidably installed in box seat inside, and the positioning table bottom is slidably installed with guide plate;The positioning table top surface middle part is integrally made with locating rib;The positioning table is equipped with alignment hole series in locating rib two sides;The positioning table front end is fixed with cover plate by bolt, and the cover plate is movably embedded with cover plate groove;The material positioner bottom is fixed with embedded column, and the embedded column is movably embedded with alignment hole series;The utility model's building material detection is used to impact resistance test device, sample loading is convenient, impact resistance test is safe, and it is more flexible to building material sample impact resistance test.

Description

Technical Field

[0001] This utility model specifically relates to an impact resistance testing device for building materials, belonging to the technical field of impact resistance testing devices. Background Technology

[0002] In impact resistance testing of building materials, drop hammer impact testing machines are often used to evaluate the impact resistance of building materials. For example, Chinese Patent Publication No. CN216594605U discloses a drop hammer impact testing machine for building material testing. This structure allows for repeated hammering without repetitive operation by the operator, and the weight of the lifting plate and hammer block can be increased by the weight block. Another example is Chinese Patent Publication No. CN217059761U, which discloses a drop hammer impact testing machine for building material testing. The structure uses a cylinder to move the connecting block up and down, while it slides on the upright through the support plates on both sides. The replacement of the impact block is simple and convenient. However, the above experimental device has the following problems: Since the building material samples are diverse in shape, such as tubular, strip and plate, different positioning frames are required for positioning or clamping of samples of different shapes. The replacement of positioning frames is cumbersome. Moreover, the positioning frames are mostly set in closed spaces, which makes it inconvenient to load the sample. When using open space impact test, flying debris is easily generated around. In addition, different impact heads are required for different samples, and the replacement of impact heads is cumbersome. Utility Model Content

[0003] To address the aforementioned issues, this invention proposes an impact resistance testing device for building materials, which facilitates sample loading, ensures safe impact testing, and provides greater flexibility in impact resistance testing of building material samples.

[0004] The impact resistance testing device for building materials of this utility model includes:

[0005] The box base has a cover groove at its front end; a guide plate is fixed to the inner side of the box base; and an impact port is provided at the top of the box base.

[0006] The positioning platform is slidably installed inside the housing base, and its bottom is slidably installed with the guide plate; a positioning rib is integrally formed in the middle of the top surface of the positioning platform; alignment holes are formed on both sides of the positioning rib; a cover plate is fixed to the front end of the positioning platform by bolts, and the cover plate is movably fitted with the cover plate groove;

[0007] A material locator, wherein a fixed insert is provided at the bottom of the material locator, and the insert is movably engaged with a row of alignment holes;

[0008] A drop hammer impact unit includes an inverted L-shaped housing, the bottom of which is fixed to the top surface of a base. A lockable replacement door is located at the lower part of the housing. A guide tube seat is fixed inside the housing, its bottom fitting into the impact port. A replacement slot is provided on the guide tube seat opposite the replacement door, and a sliding cover is hinged to the slot, with the replacement door abutting against the sliding cover. A drop hammer traction component is fixed to the top of the guide tube seat, and this component is connected to a traction slide block via a steel wire rope. An electromagnet is fitted and fixed to the bottom of the traction slide column. The traction slide column is attracted to a counterweight slide column via the electromagnet, and an impact head is screwed to the bottom of the counterweight slide column. During operation, according to the requirements of the building material sample test, the type of material locator, the weight of the counterweight slide column, and the type of impact head are selected. Then, the impact head is screwed to the bottom of the counterweight slide column, and the replacement door is opened. Next, the sliding cover is opened, and the counterweight slide column and impact head are movably inserted into the replacement slot. Then, the sliding cover and replacement door are closed, and the traction slide column is driven by the drop hammer traction component. The column descends, attracting the counterweight slide column via an electromagnet and driving it upward along the inner wall of the guide tube to a set height. Then, the handle on the cover plate pulls the positioning platform outward, and the selected material locator is installed on the positioning platform. During installation, the insert at the bottom of the material locator is movably inserted into the alignment hole row. After assembly, the building material sample is installed on the material locator. After installation, the cover plate is movably engaged with the cover plate groove, and the cover plate pushes the positioning platform to slide along the guide plate into the inner side of the housing. At this time, an unloading signal is sent via the unloading button on the housing, which transmits the signal to the controller of the whole machine. The controller sends a signal to the electromagnet, de-energizing it. The counterweight slide column and impact head lose traction, impacting the building material sample in a straight line. After the impact, a loading signal is sent via the loading button on the housing, energizing the electromagnet. The falling hammer traction component drives the traction slide column downward via the wire rope, causing the traction slide column to engage with the counterweight slide column and drive it back upward to the set height. The building material sample completes one impact resistance test.

[0009] Furthermore, the counterweight slide and the traction slide are slidably installed on the inner wall of the guide tube seat; the guide tube seat guides the counterweight slide and the traction slide, so that the counterweight slide impacts in a straight line.

[0010] Furthermore, the drop hammer traction component includes a wire tube seat, a vertical guide wheel, and a drum seat fixed to the top inner side of the housing; a drum is screwed onto the drum seat, and a horizontal guide wheel is fixed to the top of the wire tube seat; a wire rope is wound on the drum, and the wire rope enters the guide tube seat through the vertical guide wheel, the horizontal guide wheel, and the wire tube seat; a drive motor is fixed to the top outer side of the housing, and the output shaft of the drive motor is fixed to the rotating end of the drum; a rotary encoder is also installed on the output shaft of the drive motor; the drive motor can drive the drum to rotate clockwise or counterclockwise, thereby realizing the winding and unwinding of the wire rope. The wire rope is guided by the vertical guide wheel, the horizontal guide wheel, and the wire tube seat, realizing the upward and downward movement of the traction column. When the drive motor rotates, the rotary encoder monitors the number of rotations and the rotation angle in real time, thereby calculating the straight upward or downward height of the traction column.

[0011] Furthermore, a flange seat is fixed to the outside of the impact port of the housing; the bottom of the housing is fixed to the flange seat by bolts and nuts; the housing and the drop hammer impact unit can be assembled into one unit through the flange seat.

[0012] Furthermore, the material locator is a V-shaped positioning stage, a claw, or a pad; the appropriate type of material locator is selected according to the shape of the building material sample and the positioning requirements.

[0013] Furthermore, the positioning rib has an alignment port in the middle, which is directly opposite the impact port. When the material positioner is replaced, the center is positioned through the alignment port. The alignment port is used as the center point, and material positioners are installed on both sides of the alignment port. When the building material sample is loaded, the center position of the building material sample is precisely aligned with the alignment port. After the positioning table is slid into place, the impact head can be precisely aligned with the experimental position of the building material sample.

[0014] Furthermore, multiple rows of guide wheels are fixed at the bottom of the positioning platform, and the guide wheels are rolled and installed on the top surface of the guide plate; the cooperation between the guide wheels and the guide plate makes the positioning platform slide more smoothly.

[0015] Furthermore, both the box base and the cover plate are fixed with pin hole seats, and a limit pin is movably inserted into the pin hole seat. After the building material sample is loaded, the cover plate is fitted into the box base to close the box base. At the same time, the limit pin is inserted into the pin hole seat to lock the cover plate and the box base. After the impact resistance test is completed, the limit pin is pulled out. At this time, the cover plate can be pulled outward by the handle on the cover plate, so that the building material sample that has completed the test can be easily taken out.

[0016] Compared with existing technologies, the impact resistance testing device for building materials of this utility model has a simple and convenient material locator replacement. The material locator can open-load building material samples and conduct closed-type impact resistance tests. Sample loading is convenient and the impact resistance test is safe. In addition, the impact component adopts a counterweight slide column and impact head screw connection. Both the counterweight slide column and impact head can be adapted to the impact resistance test requirements of the sample, and the replacement is simple and convenient. The impact resistance test of building material samples is more flexible. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the mounting structure of the housing and positioning platform of this utility model.

[0018] Figure 2 This is a schematic diagram of the positioning platform structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the mounting structure of the box base and cover plate of this utility model.

[0020] Figure 4 This is a schematic diagram of the overall structure of the impact resistance testing device for building materials according to this utility model.

[0021] Figure 5 This is a schematic diagram of the internal structure of the drop hammer impact unit of this utility model.

[0022] Figure 6 For the present utility model Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0023] Figure 7 This is a schematic diagram of the installation structure of the traction slide and the counterweight slide of this utility model.

[0024] Reference numerals: 1. Box base, 2. Cover plate groove, 3. Guide plate, 4. Impact port, 5. Positioning platform, 6. Positioning rib, 7. Alignment hole row, 8. Cover plate, 9. Material positioner, 10. Shell base, 11. Replacement door, 12. Guide tube seat, 13. Replacement slot, 14. Sliding cover, 15. Steel wire rope, 16. Traction slide column, 17. Counterweight slide column, 18. Impact head, 19. Steel wire tube seat, 20. Vertical guide wheel, 21. Drum seat, 22. Drum, 23. Horizontal guide wheel, 24. Drive motor, 25. Flange seat, 26. Guide wheel, 27. Pin hole seat, 28. Limit pin. Detailed Implementation

[0025] Example:

[0026] like Figures 1 to 7 The impact resistance testing apparatus for building materials shown includes:

[0027] Box base 1, the front end of the box base 1 is provided with a cover plate groove 2; a guide plate 3 is fixed inside the box base 1; an impact port 4 is provided on the top of the box base 1;

[0028] Positioning platform 5 is slidably installed inside the base 1. The bottom of the positioning platform 5 is slidably installed with the guide plate 3. A positioning rib 6 is integrally formed in the middle of the top surface of the positioning platform 5. Alignment holes 7 are opened on both sides of the positioning rib 6. A cover plate 8 is fixed to the front end of the positioning platform 5 by bolts. The cover plate 8 is movably fitted with the cover plate groove 2.

[0029] Material locator 9, the bottom of which is fixed with a pin, the pin being movably engaged with the alignment hole array 7;

[0030] The drop hammer impact unit includes an inverted L-shaped housing 10, the bottom of which is fixed to the top surface of a base 1; a lockable replacement door 11 is provided at the lower part of the housing 10; a guide tube seat 12 is fixed inside the housing 10, the bottom of which is fitted into the impact port 4; a replacement slot 13 is provided on the guide tube seat 12 opposite the replacement door 11, and a sliding cover 14 is hinged to the replacement slot 13, with the replacement door 11 abutting against the sliding cover 14; a drop hammer traction component is fixed to the top of the guide tube seat 12 on the housing 10, the drop hammer traction component is connected to a traction slide column 16 via a steel wire rope 15, an electromagnet is fitted and fixed to the bottom surface of the traction slide column 16, and a counterweight slide column 17 is attracted to the traction slide column 16 via the electromagnet, with an impact head 18 screwed to the bottom of the counterweight slide column 17.

[0031] During operation, according to the requirements of the building material sample test, select the type of material locator 9, the gravity of the counterweight slide column 17, and the type of impact head 18. Then, screw the impact head 18 to the bottom of the counterweight slide column 17 and open the replacement door 11. Next, flip open the sliding cover 14 and insert the counterweight slide column 17 and impact head 18 into the inner side of the replacement slot 13. Then, close the sliding cover 14 and the replacement door 11, and drive the traction slide column 16 downwards using the drop hammer traction component. Attract the counterweight slide column 17 using an electromagnet and drive it upwards along the inner wall of the guide tube seat 12 to the set height. Then, pull the positioning platform 5 outwards using the handle on the cover plate 8 and install the selected material locator 9 onto the positioning platform 5. During installation, the insert at the bottom of the material locator 9 is movably inserted into the alignment hole row 7. The assembly is now complete. After installation, the building material sample is installed on the material locator 9. After installation, the cover plate 8 is movably fitted into the cover plate groove 2. The cover plate 8 pushes the positioning platform 5 to slide along the guide plate 3 into the inner side of the box base 1. At this time, the unloading signal is sent through the unloading button on the shell base 10. The unloading button transmits the signal to the controller of the whole machine control. The controller sends a signal to the electromagnet, the electromagnet is de-energized, the counterweight slide column 17 and the impact head 18 lose traction force, and the building material sample is impacted in a straight line. After the impact is completed, the loading signal is sent through the loading button on the shell base 10. The electromagnet is energized, and the drop hammer traction component drives the traction slide column 16 downward through the steel wire rope 15, so that the traction slide column 16 and the counterweight slide column 17 are attracted together, and the counterweight slide column 17 is driven to rise again to the set height. The building material sample completes one impact resistance test.

[0032] The counterweight slide 17 and the traction slide 16 are slidably installed on the inner wall of the guide tube seat 12; the guide tube seat 12 guides the counterweight slide 17 and the traction slide 16 to slide, so that the counterweight slide 17 impacts in a straight line.

[0033] The falling hammer traction component includes a wire tube seat 19 fixed to the top inner side of the housing 10, a vertical guide wheel 20, and a drum seat 21; a drum 22 is screwed onto the drum seat 21, and a horizontal guide wheel 23 is fixed to the top of the wire tube seat 19; a wire rope 15 is wound on the drum 22, and the wire rope 15 enters the guide tube seat 12 through the vertical guide wheel 20, the horizontal guide wheel 23, and the wire tube seat 19; a drive motor 24 is fixed to the top outer side of the housing 10, and the output shaft of the drive motor 24 is connected to the drum 22. 2. The rotating end is fixed; a rotary encoder is also installed on the output shaft of the drive motor 24; the drive motor 24 can drive the drum 22 to rotate clockwise or counterclockwise, thereby realizing the winding and unwinding of the wire rope 15. The wire rope 15 is guided by the vertical guide wheel 20, the horizontal guide wheel 23 and the wire tube seat 19, realizing the upward and downward movement of the traction slide column 16. When the drive motor 24 rotates, the number of rotations and the rotation angle are monitored in real time by the rotary encoder, thereby calculating the straight upward or downward height of the traction slide column 16.

[0034] The box base 1 is fixed with a flange seat 25 outside the impact port 4; the bottom of the shell base 10 is fixed to the flange seat 25 by bolts and nuts; the box base 1 and the drop hammer impact unit can be assembled into one unit through the flange seat 25.

[0035] The material locator 9 is a V-shaped positioning stage, a claw, or a pad; the type of material locator 9 is selected according to the shape of the building material sample and the positioning requirements.

[0036] The positioning rib 6 has an alignment port in the middle, which is directly opposite the impact port 4. When the material positioner 9 is replaced, the center is positioned through the alignment port. The alignment port is used as the center point, and the material positioners 9 are installed on both sides of the alignment port. When the building material sample is loaded, the center position of the building material sample is precisely aligned with the alignment port. After the positioning table 5 is slid into place, the impact head 18 can be precisely aligned with the experimental position of the building material sample.

[0037] The bottom of the positioning platform 5 is fixed with multiple rows of guide wheels 26, which are rolled and installed on the top surface of the guide plate 3. The guide wheels 26 and the guide plate 3 work together to make the positioning platform 5 slide more smoothly.

[0038] Both the box base 1 and the cover plate 8 are fixed with pin hole seats 27 on their sides, and a limiting pin 28 is movably inserted into the pin hole seat 27. After the building material sample is loaded, the cover plate 8 is fitted with the box base 1 to close the box base 1. At the same time, the limiting pin 28 is inserted into the pin hole seat 27 to lock the cover plate 8 and the box base 1. After the impact resistance test is completed, the limiting pin 28 is pulled out. At this time, the cover plate 8 can be pulled outward by the handle on the cover plate 8, so that the building material sample that has completed the test can be easily taken out.

[0039] The above embodiments are merely preferred embodiments of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model are included within the scope of the present utility model.

Claims

1. An impact resistance testing device for testing building materials, characterized in that: include: The box base has a cover groove at its front end; a guide plate is fixed to the inner side of the box base; and an impact port is provided at the top of the box base. The positioning platform is slidably installed inside the housing base, and its bottom is slidably installed with the guide plate; a positioning rib is integrally formed in the middle of the top surface of the positioning platform; alignment holes are formed on both sides of the positioning rib; a cover plate is fixed to the front end of the positioning platform by bolts, and the cover plate is movably fitted with the cover plate groove; A material locator, wherein a fixed insert is provided at the bottom of the material locator, and the insert is movably engaged with a row of alignment holes; The drop hammer impact unit includes an inverted L-shaped housing, the bottom of which is fixed to the top surface of a base. A lockable replacement door is located at the bottom of the housing. A guide tube seat is fixed inside the housing, its bottom fitting into the impact port. A replacement slot is provided on the guide tube seat opposite the replacement door, and a sliding cover is hinged to the slot, with the replacement door abutting against the cover. A drop hammer traction component is fixed to the top of the guide tube seat, connected to a traction slide column via a steel wire rope. An electromagnet is fitted and fixed to the bottom of the traction slide column, which attracts a counterweight slide column via the electromagnet. An impact head is screwed to the bottom of the counterweight slide column.

2. The impact resistance testing device for building materials according to claim 1, characterized in that: The counterweight slide and the traction slide are slidably installed on the inner wall of the guide tube seat.

3. The impact resistance testing device for building materials according to claim 1, characterized in that: The falling hammer traction component includes a wire tube seat, a vertical guide wheel, and a drum seat fixed to the top inner side of the housing; a drum is screwed onto the drum seat, and a horizontal guide wheel is fixed to the top of the wire tube seat; a wire rope is wound on the drum, and the wire rope enters the guide tube seat through the vertical guide wheel, the horizontal guide wheel, and the wire tube seat; a drive motor is fixed to the top outer side of the housing, and the output shaft of the drive motor is fixed to the rotating end of the drum; a rotary encoder is also installed on the output shaft of the drive motor.

4. The impact resistance testing device for building materials according to claim 1, characterized in that: The housing is fixed to a flange seat outside the impact port; the bottom of the housing is fixed to the flange seat by bolts and nuts.

5. The impact resistance testing device for building materials according to claim 1, characterized in that: The material locator is a V-shaped positioning platform, a claw, or a pad.

6. The impact resistance testing device for building materials according to claim 1, characterized in that: The positioning rib has an alignment opening in the middle, which is directly opposite the impact port.

7. The impact resistance testing device for building materials according to claim 1, characterized in that: The bottom of the positioning platform is fixed with multiple rows of guide wheels, which are rolled on the top surface of the guide plate.

8. The impact resistance testing device for building materials according to claim 1, characterized in that: Both the housing and the cover plate are fixed with pin holes, and a limit pin is movably inserted into the pin hole.

Images