A road surface material strength testing device

Abstract

This utility model discloses a road material strength testing device, including a testing device body and a material pressing cylinder. The testing device body includes a worktable with a support frame at the bottom. The material pressing cylinder is detachably mounted on the worktable by bolts. A mounting plate is provided on the support frame, and a first telescopic device with its telescopic end facing the worktable is provided on the mounting plate. A through hole is provided on the worktable for the telescopic end of the first telescopic device to pass through the worktable. A bearing seat is installed on the telescopic end of the first telescopic device, and a push plate is provided on the bearing seat that is slidably connected to the inner wall of the material pressing cylinder. A mounting frame is installed on the worktable, and a second telescopic device with its telescopic end facing the material pressing cylinder is provided on the mounting frame. A pressure plate is provided on the telescopic end of the second telescopic device. The second telescopic device is used to control the pressure plate to extend into the material pressing cylinder. The advantages are that it facilitates the disassembly, assembly, maintenance, and cleaning of the material pressing cylinder, and simplifies the structural composition of the testing device.

Description

Technical Field

[0001] This utility model relates to the technical field of road material testing equipment, and in particular to a road material strength testing device. Background Technology

[0002] The pavement material strength testing device (also known as a pavement material strength tester or pavement strength meter) is a professional device used to evaluate the mechanical properties of road engineering materials. It is widely used in the quality control and project acceptance of pavement structures such as highways and airport runways.

[0003] In existing technologies, such as the road material strength tester disclosed in CN221765082U, there is a support assembly, a material taking assembly, a power assembly, and a test assembly. The support assembly includes a support platform, the material taking assembly includes a material taking cylinder, the power assembly includes a power box, and the test assembly includes a lifting plate. An electric push rod is provided on the inner side of the material taking cylinder, a pressure cylinder is connected to the top of the material taking cylinder, a pressure plate is connected to the inner wall of the bottom surface of the pressure cylinder, an adjustment plate is provided on the outer ring of the threaded rod, a lifting column is connected to the bottom of the lifting plate, and a pressure plate is connected to the end of the lifting column away from the lifting plate. The pressure groove is provided as a channel for the sliding column to slide with the anti-skid layer. The compression spring is provided so that when the force applied by the sliding column to the compression spring disappears, the compression spring resets and drives the sliding column and the anti-skid layer to reset synchronously.

[0004] However, it also has some shortcomings, such as the inconvenience of maintaining and cleaning the pressure cylinder when maintenance and cleaning are required. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a road material strength testing device that can facilitate the maintenance and cleaning of the material pressing cylinder.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a road material strength testing device, comprising a testing device body and a pressing cylinder installed on the testing device body. The testing device body includes a workbench, and the pressing cylinder is detachably installed on the workbench by bolts. A support frame is provided at the bottom of the workbench, and an mounting plate is provided on the support frame. A first telescopic device is installed on the mounting plate, with the telescopic end of the first telescopic device facing the workbench. A through hole is provided on the workbench for the telescopic end of the first telescopic device to pass through the workbench, and the through hole is located at the center of the pressing cylinder on the workbench. A bearing seat is installed on the telescopic end of the first telescopic device, and a push plate is provided on the bearing seat that is slidably connected to the inner wall of the pressing cylinder. A mounting frame is installed on the workbench, and the pressing cylinder is located inside the mounting frame. A second telescopic device is provided on the mounting frame, with the telescopic end of the second telescopic device facing the pressing cylinder. A pressure plate is provided at the telescopic end of the second telescopic device, and the second telescopic device is used to control the pressure plate to extend into the pressing cylinder.

[0007] A further preferred embodiment of this utility model is as follows: the pressing cylinder includes a cylinder body, the bottom of which is provided with a first connecting ring integrally formed with the cylinder body, the cylinder body is connected to the worktable through the first connecting ring, and the first connecting ring is detachably connected to the worktable by bolts; a sleeve is installed in the cylinder body, the sleeve is sleeved with the cylinder body, the bottom of the sleeve is provided with a second connecting ring, the bottom of the first connecting ring is provided with a receiving groove for accommodating the second connecting ring, the second connecting ring is located in the receiving groove, the second connecting ring is detachably connected to the receiving groove by screws, and the push plate is slidably connected to the inner wall of the sleeve.

[0008] A further preferred embodiment of this utility model is: an elastic scraper ring that abuts against the inner wall of the sleeve is provided on the outer wall of the push plate.

[0009] A further preferred embodiment of this utility model is as follows: the bearing seat includes a connecting sleeve, which is sleeved on the telescopic end of the first telescopic device; a push block, which is installed on the top of the connecting sleeve, the diameter of the push block being smaller than the diameter of the push plate, and the connecting sleeve and the push block being integrally formed; and multiple support rods, which are evenly installed on the bottom of the push block, the length of the support rods being greater than the length of the connecting sleeve.

[0010] A further preferred embodiment of this utility model is that the mounting bracket is detachably mounted on the workbench by bolts.

[0011] A further preferred embodiment of this utility model is that the first telescopic device is detachably mounted on the mounting plate by bolts.

[0012] Compared with the prior art, the advantages of this utility model are that the pressure cylinder is detachably mounted on the workbench by bolts, which facilitates the disassembly and assembly of the pressure cylinder, thereby facilitating the maintenance and cleaning of the pressure cylinder. Furthermore, the combination of the mounting frame, the second telescopic device, and the pressure plate simplifies the structural composition of the testing device, thereby reducing the overall weight of the testing device and making it easier to transport. Attached Figure Description

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0014] Figure 1 This is a front view of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model;

[0016] Figure 3 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 4 This is a three-dimensional structural diagram of the support base in this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the support base in this utility model, viewed from below.

[0019] Figure 6 This is a three-dimensional structural diagram of the push plate in this utility model;

[0020] Figure 7 This is a schematic diagram of the structure of the medium-pressure material cylinder of this utility model;

[0021] Figure 8 This is an exploded view of the medium-pressure feed cylinder of this utility model.

[0022] In the diagram: 1. Workbench; 2. Pressure cylinder; 21. Cylinder body; 22. First connecting ring; 23. Sleeve; 24. Second connecting ring; 25. Receiving groove; 26. Screw; 3. Support frame; 4. Mounting plate; 5. First telescopic device; 6. Mounting frame; 7. Second telescopic device; 8. Pressure plate; 9. Push plate; 91. Elastic scraper ring; 10. Bearing seat; 101. Connecting sleeve; 102. Push block; 103. Support rod. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0024] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0025] This embodiment mainly describes the structure of a road surface material strength testing device, as detailed below:

[0026] like Figures 1-8 As shown, a road material strength testing device includes a testing device body and a pressure cylinder 2 mounted on the testing device body for placing the road material to be tested. The testing device body includes a workbench 1 with a support frame 3 at its bottom. The pressure cylinder 2 is detachably mounted on the workbench 1 by bolts, which facilitates the disassembly and assembly of the pressure cylinder 2, thereby facilitating maintenance and cleaning. A mounting plate 4 is provided on the support frame 3, and a first telescopic device 5 with its telescopic end facing the workbench 1 is provided on the mounting plate 4. A through hole is provided on the workbench 1 for the telescopic end of the first telescopic device 5 to pass through the workbench 1. The through hole is located at the center of the pressure cylinder 2 on the workbench 1. A bearing seat 10 is provided at the telescopic end of the first telescopic device 5, and a push plate 9 is provided on the bearing seat 10 that is slidably connected to the inner wall of the pressure cylinder 2. When the road material to be tested is placed into the pressure cylinder 2, the push plate 9 is positioned at the telescopic end of the first telescopic device 5. On the board, when the road material is tested, the first telescopic device 5 can be activated to extend the telescopic end of the first telescopic device 5. As the telescopic end of the first telescopic device 5 extends, the first telescopic device 5 can push the push plate 9 to move upward in the pressure cylinder 2 through the bearing seat 10 until the push plate 9 is level with the top of the pressure cylinder 2. This facilitates the discharge of the road material after testing. Finally, a mounting frame 6 is set on the workbench 1, and the pressure cylinder 2 is located inside the mounting frame 6. At the same time, a second telescopic device 7 with its telescopic end facing the pressure cylinder 2 is set on the mounting frame 6, and a pressure plate 8 is set on the telescopic end of the second telescopic device 7. The second telescopic device 7 is used to control the pressure plate 8 to extend into the pressure cylinder 2. In this way, the structural composition of the testing device is simplified by the cooperation of the mounting frame 6, the second telescopic device 7, and the pressure plate 8, thereby reducing the overall weight of the testing device and facilitating the handling of the testing device.

[0027] When testing road materials, the first telescopic device 5 and the second telescopic device 7 are first shortened. At this time, the bottom of the support seat 10 is located on the workbench 1, and the push plate 9 on the support seat 10 is located at the bottom of the pressing cylinder 2. At the same time, the pressure plate 8 connected to the telescopic end of the second telescopic device 7 is away from the top of the pressing cylinder 2. Then, the road material to be tested is loaded into the pressing cylinder 2 from the top. Then, the second telescopic device 7 is activated to extend its telescopic end. As the telescopic end of the second telescopic device 7 extends, it can push the pressure plate 8 into the pressing cylinder 2, and this continues until the road material is tested. The support seat 10 is designed to prevent the first telescopic device 5 from being damaged during the testing of the road material.

[0028] Furthermore, the pressure cylinder 2 includes a cylinder body 21 and a first connecting ring 22 integrally formed with the cylinder body 21 and installed at the bottom of the cylinder body 21. The cylinder body 21 is connected to the worktable 1 via the first connecting ring 22, and the first connecting ring 22 is detachably connected to the main body of the detection device via bolts. To facilitate maintenance of the pressure cylinder 2, a sleeve 23 is fitted inside the cylinder body 21, and the push plate 9 is slidably connected to the inner wall of the sleeve 23. Thus, when the inside of the pressure cylinder 2 is worn and requires maintenance, only the sleeve 23 in the cylinder body 21 needs to be replaced, which facilitates maintenance of the pressure cylinder 2. In addition, to facilitate disassembly and assembly of the sleeve 23, a first connecting ring 22 is provided at the bottom of the sleeve 23. The second connecting ring 24 has a receiving groove 25 at the bottom of the first connecting ring 22 to accommodate the second connecting ring 24. The second connecting ring 24 is located in the receiving groove 25 and is detachably connected to the receiving groove 25 by screws 26. In this way, when the sleeve 23 needs to be disassembled, the screws 26 are first removed from the second connecting ring 24, and then the sleeve 23 is removed from the cylinder 21. When the sleeve 23 is installed, the sleeve 23 is first installed into the cylinder 21, and then the screws 26 are tightened on the second connecting ring 24. This facilitates the disassembly and assembly of the sleeve 23, and further facilitates the maintenance of the pressure cylinder 2.

[0029] Furthermore, in order to ensure the cleanliness of the pressure cylinder 2 when the pusher plate 9 pushes the road material out of the pressure cylinder 2, an elastic scraper ring 91 is provided on the outer wall of the pusher plate 9 to abut against the inner wall of the sleeve 23.

[0030] Furthermore, to facilitate the assembly and disassembly of the support seat 10, the support seat 10 includes a connecting sleeve 101 sleeved on the telescopic end of the first telescopic device 5, and a push block 102 for pushing the push plate 9 is provided on the top of the connecting sleeve 101. The diameter of the push block 102 is smaller than the diameter of the push plate 9. This ensures that the support seat 10 can move accordingly when the telescopic end of the first telescopic device 5 is shortened. In order to ensure the strength of the support seat 10, the connecting sleeve 101 and the push block 102 are integrally formed. At the same time, in order to ensure the support effect of the support seat 10, multiple support rods 103 with a length greater than that of the connecting sleeve 101 are evenly provided at the bottom of the push block 102. Thus, when the first telescopic device 5 is in the shortened state, the bottom of the support rods 103 can be located on the worktable 1, thereby achieving the effect of the support seat 10 protecting the first telescopic device 5.

[0031] Furthermore, to facilitate the assembly and disassembly of the mounting bracket 6, the mounting bracket 6 is detachably mounted on the workbench 1 by bolts.

[0032] Furthermore, to facilitate the assembly and disassembly of the first telescopic device 5, the first telescopic device 5 is detachably mounted on the mounting plate 4 by bolts.

[0033] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] The foregoing has provided a detailed description of the road material strength testing device provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A road surface material strength detection device comprising a detection device main body and a press cylinder mounted on the detection device main body, characterized by: The main body of the detection device includes The workbench is equipped with a support frame at the bottom of the workbench, and a mounting plate is provided on the support frame. The first telescopic device is mounted on the mounting plate, with the telescopic end of the first telescopic device facing the worktable. The worktable has a through hole for the telescopic end of the first telescopic device to pass through the worktable, and the through hole is located at the center of the pressure cylinder on the worktable. A support seat is installed at the telescopic end of the first telescopic device, and a push plate is provided on the support seat that is slidably connected to the inner wall of the pressure cylinder; The mounting frame is installed on the workbench, and the pressure cylinder is located inside the mounting frame. The mounting frame is provided with a second telescopic device, the telescopic end of which faces the pressure cylinder. The telescopic end of the second telescopic device is provided with a pressure plate, and the second telescopic device is used to control the pressure plate to extend into the pressure cylinder.

2. The device for detecting the strength of a pavement material according to claim 1, characterized by: The pressure cylinder includes The cylinder has a first connecting ring integrally formed with the bottom of the cylinder. The cylinder is connected to the workbench via the first connecting ring. The first connecting ring is detachably connected to the workbench via bolts. A sleeve is installed inside a cylinder and is fitted onto the cylinder. A second connecting ring is provided at the bottom of the sleeve. A receiving groove for accommodating the second connecting ring is opened at the bottom of the first connecting ring. The second connecting ring is located in the receiving groove and is detachably connected to the receiving groove by screws. The push plate is slidably connected to the inner wall of the sleeve.

3. The device of claim 2, wherein: The outer wall of the push plate is provided with an elastic scraper ring that abuts against the inner wall of the sleeve.

4. The pavement material strength detection device of claim 1, wherein: The support includes A connecting sleeve, which is fitted onto the telescopic end of the first telescopic device; A push block is installed on the top of the connecting sleeve. The diameter of the push block is smaller than the diameter of the push plate. The connecting sleeve and the push block are integrally formed. Support rods, wherein multiple support rods are provided and are evenly installed at the bottom of the push block, and the length of the support rods is greater than the length of the connecting sleeve.

5. The device of claim 1, wherein: The mounting bracket is detachably mounted on the workbench by bolts.

6. The road material strength testing device according to claim 1, characterized in that: The first telescopic device is detachably mounted on the mounting plate by bolts.

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