Road durability detection device

Abstract

The utility model relates to the technical field of road detection, in particular to a road durability detection device which comprises a detection box. A box door is mounted on the surface of the front end of the detection box; a placement plate is placed at the bottom in the detection box, and a limiting plate is fixed at the top of the placement plate; an arc-shaped plate abutting against the placing plate is fixed to the bottom in the detection box. Fixing assemblies are arranged on the left outer wall and the right outer wall of the detection box, a fixing rod is pulled through a pulling plate, at the moment, the fixing rod can move in a movable hole, a spring can correspondingly contract, and after one end of the fixing rod is separated from a clamping hole, fixing of a placing plate and a limiting plate can be relieved. The placing plate and the limiting plate can be disassembled, so that the placing plate and the limiting plate can be disassembled conveniently, the concrete test piece can be placed on the placing plate conveniently, disintegrating slag of the concrete test piece on the placing plate can be cleaned conveniently, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of highway testing technology, specifically a highway durability testing device. Background Technology

[0002] Ordinary concrete refers to artificial stone made by mixing cement as the main binder with water, sand, and gravel, and, when necessary, chemical admixtures and mineral admixtures, in appropriate proportions, and then uniformly mixing, compacting, molding, and curing. It is widely used in modern highways. In order to ensure the quality of highways, it is necessary to test the strength of concrete specimens, which requires the use of concrete strength testing equipment.

[0003] The Chinese Patent Network discloses a durable concrete strength testing device, publication number CN220490543U. Although it avoids deformation of the first and second adjusting studs and facilitates pressure testing at different locations of concrete specimens, the bearing plate and protective plate in this patent are not easy to disassemble. On the one hand, it is inconvenient to place the concrete specimen on the bearing plate, and on the other hand, it is inconvenient to clean the concrete specimen debris on the bearing plate, making it inconvenient to use.

[0004] Therefore, a highway durability testing device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a highway durability testing device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A highway durability testing device, comprising:

[0008] Testing box;

[0009] The front surface of the testing box is equipped with a door;

[0010] A placement plate is placed at the bottom of the testing box, and a limit plate is fixed to the top of the placement plate;

[0011] An arc-shaped plate is fixed at the bottom of the testing box to abut against the placement plate;

[0012] The left and right outer walls of the testing box are equipped with fixing components, which are used to fix the placement plate.

[0013] The top of the testing box has a connection hole, a pressure sensing head is installed in the connection hole, an electric telescopic rod is installed at the bottom of the pressure sensing head, and a limiting plate is fixed at the top of the pressure sensing head.

[0014] Preferably, the bottom of the limiting plate abuts against the top of the detection box.

[0015] Preferably, the fixing component includes movable holes respectively opened on the left and right outer walls of the detection box, a locking hole opened on the outer wall of the limiting plate, a fixing rod movably disposed in the movable hole, a pull plate fixed to one end of the fixing rod, and the other end of the fixing rod being locked inside the locking hole.

[0016] Preferably, a receiving plate is fixed to the outer wall of the fixing rod, and a spring is provided on the outer wall of the fixing rod. One end of the spring is fixed to the receiving plate, and the other end of the spring is fixed to the inner wall of the detection box.

[0017] Preferably, a limiting strip is placed on the top of the limiting plate, a first threaded hole is opened on the top of the limiting strip, and a second threaded hole is opened on the top of the detection box. The first threaded hole and the second threaded hole are internally threaded with fixing bolts.

[0018] Preferably, two limiting strips are symmetrically fixed to the top of the limiting plate, and the limiting strips are disposed between the two limiting strips.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention uses a pull plate to pull the fixing rod, which moves within the movable hole. The spring also contracts accordingly. Once one end of the fixing rod disengages from the locking hole, the fixing of the placement plate and the limiting plate can be released, allowing for disassembly of the placement plate and the limiting plate. Therefore, this invention facilitates the disassembly of the placement plate and the limiting plate, making it easier to place concrete specimens onto the placement plate and to clean up any concrete specimen debris on the placement plate. It is therefore quite convenient to use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0023] Figure 3 This utility model Figure 2 Enlarged view of A in the middle;

[0024] Figure 4 This utility model Figure 2 A magnified view of B in the middle.

[0025] In the diagram: 1. Testing box; 2. Box door; 3. Connecting hole; 4. Pressure sensor head; 5. Electric telescopic rod; 6. Limiting plate; 7. Limiting strip; 8. First threaded hole; 9. Second threaded hole; 10. Fixing bolt; 11. Limiting strip; 12. Placement plate; 13. Limiting plate; 14. Arc plate; 15. Movable hole; 16. Locking hole; 17. Fixing rod; 18. Pull plate; 19. Support plate; 20. Spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0028] Example 1:

[0029] Please see Figure 1 , 2 4. This utility model provides a technical solution: To achieve the above objectives, this utility model provides the following technical solution: A highway durability testing device, comprising: a testing box 1; a box door 2 installed on the front surface of the testing box 1; a placement plate 12 placed at the bottom inside the testing box 1, and a limiting plate 13 fixed at the top of the placement plate 12; an arc-shaped plate 14 fixed at the bottom inside the testing box 1, abutting against the placement plate 12; fixing components provided on the left and right outer walls of the testing box 1, the fixing components being used to fix the placement plate 12; a connecting hole 3 opened at the top of the testing box 1, and a pressure sensing head 4 installed in the connecting hole 3, the pressure sensing head... 4. An electric telescopic rod 5 is installed at the bottom. A limiting plate 6 is fixed at the top of the pressure sensing head 4. The bottom of the limiting plate 6 abuts against the top of the detection box 1. The fixing component includes movable holes 15 respectively opened on the left and right outer walls of the detection box 1. A locking hole 16 is opened on the outer wall of the limiting plate 13. A fixing rod 17 is movably arranged in the movable hole 15. A pull plate 18 is fixed at one end of the fixing rod 17. The other end of the fixing rod 17 is locked in the locking hole 16. A receiving plate 19 is fixed on the outer wall of the fixing rod 17. A spring 20 is provided on the outer wall of the fixing rod 17. One end of the spring 20 is fixed to the receiving plate 19. The other end of the spring 20 is fixed to the inner wall of the detection box 1.

[0030] Specifically, in this invention, the fixing rod 17 is pulled by the pull plate 18. At this time, the fixing rod 17 will move within the movable hole 15, and the spring 20 will also retract accordingly. After one end of the fixing rod 17 is disengaged from the locking hole 16, the fixing of the placement plate 12 and the limiting plate 13 can be released, and then the placement plate 12 and the limiting plate 13 can be disassembled. Therefore, this invention facilitates the disassembly of the placement plate 12 and the limiting plate 13, thereby facilitating the placement of concrete specimens on the placement plate 12 and the cleaning of concrete specimen debris on the placement plate 12. It is quite convenient to use.

[0031] By providing an arc-shaped plate 14, the arc-shaped plate 14 can limit the placement plate 12, thereby improving the stability of the placement plate 12. Furthermore, when installing the placement plate 12, the arc-shaped plate 14 can quickly position the placement plate 12, thereby improving the installation efficiency of the placement plate 12.

[0032] Example 2:

[0033] Please see Figure 1-3 This utility model provides a technical solution: a highway durability testing device, wherein a limiting strip 7 is placed on the top of the limiting plate 6, a first threaded hole 8 is opened on the top of the limiting strip 7, a second threaded hole 9 is opened on the top of the testing box 1, and a fixing bolt 10 is internally threaded to the first threaded hole 8 and the second threaded hole 9, and two limiting strips 11 are symmetrically fixed on the top of the limiting plate 6, and the limiting strip 7 is located between the two limiting strips 11.

[0034] Specifically, by removing the fixing bolt 10 from the first threaded hole 8 and the second threaded hole 9, the pressure sensing head 4 can be disassembled, which facilitates the maintenance of the pressure sensing head 4 and improves the working efficiency and service life of the pressure sensing head 4.

[0035] Working principle:

[0036] Pulling the fixing rod 17 by the pull plate 18 will cause the fixing rod 17 to move within the movable hole 15, and the spring 20 will also retract accordingly. After one end of the fixing rod 17 is disengaged from the locking hole 16, the fixing of the placement plate 12 and the limiting plate 13 can be released, and then the placement plate 12 and the limiting plate 13 can be disassembled. Therefore, this utility model facilitates the disassembly of the placement plate 12 and the limiting plate 13, which makes it easier to place the concrete specimen on the placement plate 12 and to clean up the concrete specimen debris on the placement plate 12. It is also convenient to use.

[0037] By providing an arc-shaped plate 14, the arc-shaped plate 14 can limit the placement plate 12, thereby improving the stability of the placement plate 12. Furthermore, when installing the placement plate 12, the arc-shaped plate 14 can quickly position the placement plate 12, thereby improving the installation efficiency of the placement plate 12.

[0038] When testing concrete specimens, first place the concrete specimens on the placement plate 12, then close the box door 2, and then start the electric telescopic rod 5. After the electric telescopic rod 5 comes into contact with the concrete specimens, the pressure sensor head 4 can be used to test the concrete specimens.

[0039] By removing the fixing bolt 10 from the first threaded hole 8 and the second threaded hole 9, the pressure sensing head 4 can be disassembled, which facilitates the maintenance of the pressure sensing head 4 and improves the working efficiency and service life of the pressure sensing head 4.

[0040] In the description of this utility model, it should be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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 limiting the scope of protection of this utility model.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A highway durability testing device, characterized in that, include: Test box (1); The front surface of the testing box (1) is equipped with a door (2); The bottom of the testing box (1) is provided with a placement plate (12), and a limit plate (13) is fixed to the top of the placement plate (12); The bottom of the test box (1) is fixed with an arc-shaped plate (14) that abuts against the placement plate (12); The left and right outer walls of the detection box (1) are provided with fixing components, which are used to fix the placement plate (12); The top of the detection box (1) is provided with a connection hole (3), a pressure sensing head (4) is provided in the connection hole (3), an electric telescopic rod (5) is installed at the bottom of the pressure sensing head (4), and a limiting plate (6) is fixed at the top of the pressure sensing head (4).

2. The highway durability testing device according to claim 1, characterized in that, The bottom of the limiting plate (6) abuts against the top of the detection box (1).

3. The highway durability testing device according to claim 1, characterized in that, The fixing component includes movable holes (15) respectively opened on the left and right outer walls of the detection box (1), and a locking hole (16) is opened on the outer wall of the limiting plate (13). A fixing rod (17) is movably arranged in the movable hole (15), and a pull plate (18) is fixed at one end of the fixing rod (17). The other end of the fixing rod (17) is locked inside the locking hole (16).

4. The highway durability testing device according to claim 3, characterized in that, The outer wall of the fixing rod (17) is fixed with a receiving plate (19), and a spring (20) is provided on the outer wall of the fixing rod (17). One end of the spring (20) is fixed to the receiving plate (19), and the other end of the spring (20) is fixed to the inner wall of the detection box (1).

5. The highway durability testing device according to claim 1, characterized in that, A limiting strip (7) is placed on the top of the limiting plate (6), and a first threaded hole (8) is opened on the top of the limiting strip (7). A second threaded hole (9) is opened on the top of the detection box (1). A fixing bolt (10) is threadedly connected to the first threaded hole (8) and the second threaded hole (9).

6. The highway durability testing device according to claim 5, characterized in that, The top of the limiting plate (6) is symmetrically fixed with two limiting strips (11), and the limiting strip (7) is located between the two limiting strips (11).

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