Pressurizing device for highway engineering raw material test detection
By adopting a rectangular frame structure, positive and negative screws, and a geared motor drive in the testing device for raw materials in highway engineering, the problems of large device size and inconvenient cleaning have been solved, achieving the effect of easy movement and cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING INST OF SCI & ENG
- Filing Date
- 2025-04-11
- Publication Date
- 2026-05-01
AI Technical Summary
Existing raw material testing devices for highway engineering are bulky and inconvenient to move, and the splash guards are fixed in place, making it difficult to clean up the crushed raw materials.
It adopts a rectangular frame structure, equipped with a drive unit and rollers. It uses positive and negative screws to drive the mounting plate and extrusion plate to extrude raw materials. Combined with a movable splash guard and rollers, it is easy to clean up debris. The drive unit uses a geared motor to reduce the size.
The device has been miniaturized, making it easier to move and clean up the crushed raw materials, thus improving the convenience and safety of testing.
Smart Images

Figure CN224189730U_ABST
Abstract
Description
A pressure device for testing and inspecting raw materials in highway engineering Technical Field
[0001] This utility model relates to the technical field of pressure testing devices, specifically a pressure device for testing and inspecting raw materials for highway engineering. Background Technology
[0002] Highway engineering refers to the surveying, measurement, design, construction, maintenance, and management of highway structures. Highway engineering structures include: roadbed, pavement, bridges, culverts, tunnels, drainage systems, safety protection facilities, landscaping and traffic monitoring facilities, as well as buildings, workshops, and other service facilities used for construction, maintenance, and monitoring.
[0003] With social development, more and more highways are being built, and the types of raw materials used in highway construction are also increasing. For example, cement, sand, coarse aggregate, mortar, and fly ash are commonly used in highway construction. Therefore, the selection of raw materials for highway projects is more cautious and rigorous to avoid accidents caused by substandard highways. When testing engineering raw materials, the raw materials are first made into blocks, and then the blocks are tested to check their compressive strength.
[0004] Existing detection devices are mostly driven by hydraulic cylinders, which are large in size and inconvenient to move. The splash guards to prevent the fragmented raw materials from breaking and splashing are mostly fixed, which makes it difficult to clean the broken raw materials. These issues need to be improved. Summary of the Invention
[0005] (I) Technical problems to be solved
[0006] The technical problem to be solved by this utility model is to overcome the above difficulties and provide a pressure device for testing and inspecting raw materials for highway engineering that is small in size, easy to move, and easy to clean the crushed raw materials.
[0007] (II) Technical Solution
[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a pressure device for testing and inspecting raw materials for highway engineering, including a rectangular frame, and a driving device is provided above the rectangular frame;
[0009] The output end of the drive device is connected to a positive and negative screw rod arranged symmetrically within a rectangular frame. The top of the positive and negative screw rod is threadedly connected to a mounting plate. The bottom of the mounting plate is provided with a pressure sensor. The bottom of the pressure sensor is connected to a pressing plate sleeved on the positive and negative screw rod. The bottom of the positive and negative screw rod is threadedly connected to a placement plate that cooperates with the pressing plate.
[0010] The mounting plate has a splash guard that can move up and down on its side wall, and the placement plate has a protrusion on its side wall that pushes the splash guard to move.
[0011] As an improvement, the bottom of the rectangular plate is provided with several rollers evenly distributed, and the side walls of the rectangular frame are provided with symmetrically arranged handles.
[0012] As an improvement, the drive device includes an inverted U-shaped frame at the top of the rectangular frame, a geared motor is provided on the inverted U-shaped frame, the output end of the geared motor extends into the inverted U-shaped frame and is connected to a drive gear, a driven gear is provided at one end of the positive and negative screw located above the rectangular frame, and a chain is meshed on the drive gear and the driven gear.
[0013] As an improvement, the mounting plate is provided with symmetrically arranged ears, and a rod that can move up and down is provided inside the ears. A limiting ring is provided at one end of the rod above the ears, and a splash guard is provided at the bottom of the rod.
[0014] (III) Beneficial Effects
[0015] The advantages of this utility model compared with the prior art are as follows:
[0016] 1. The drive device can drive the positive and negative screws to rotate. The positive and negative screws drive the mounting plate, pressure sensor, extrusion plate and placement plate to move closer to each other, and extrude and detect the block raw material placed on the placement plate. The pressure sensor can detect the force when the block raw material is extruded and display it on the display.
[0017] 2. The splash guard can block the splashes generated by the crushing of block raw materials to prevent personnel injury. When the mounting plate is reset, it can move upward with the mounting plate and will not hinder personnel from cleaning up the debris after the block raw materials are crushed.
[0018] 3. The driving device is a geared motor, which is smaller in size than the detection device driven by a hydraulic cylinder, and the rollers and handles facilitate the movement of the device. Attached Figure Description
[0019] Figure 1 is a schematic diagram of the structure of this utility model.
[0020] Figure 2 is a schematic diagram of the structure of this utility model.
[0021] Figure 3 is a top view of the structure of this utility model.
[0022] Figure 4 is a structural schematic diagram of the present invention in cross-sectional view at point AA in Figure 3.
[0023] As shown in the figure: 1. Rectangular frame; 2. Drive unit; 3. Positive and negative screws; 4. Mounting plate; 5. Pressure sensor; 6. Extrusion plate; 7. Placement plate; 8. Splash guard; 9. Protrusion; 10. Roller; 11. Handle; 12. Inverted U-shaped frame; 13. Gear motor; 14. Drive gear; 15. Driven gear; 16. Chain; 17. Ear; 18. Rod; 19. Limiting ring. Detailed Implementation
[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0025] Example 1
[0026] Referring to Figures 1-4, a pressure device for testing and inspecting raw materials for highway engineering includes a rectangular frame 1, and a driving device 2 is provided above the rectangular frame 1;
[0027] The output end of the drive device 2 is connected to a positive and negative screw 3 arranged symmetrically within a rectangular frame 1. The drive device 2 can drive the positive and negative screw 3 to rotate. The top of the positive and negative screw 3 is threadedly connected to a mounting plate 4. The bottom of the mounting plate 4 is provided with a pressure sensor 5. The bottom of the pressure sensor 5 is connected to a compression plate 6 sleeved on the positive and negative screw 3. The bottom of the positive and negative screw 3 is threadedly connected to a placement plate 7 that cooperates with the compression plate 6. The positive and negative screw 3 can drive the mounting plate 4 and the placement plate 7 to move closer or further away from each other, thereby driving the pressure sensor 6 and the compression plate 6 to move. The compression plate 6 and the placement plate 7 compress the block raw material. The pressure sensor 5 displays the detected pressure data on the display.
[0028] The mounting plate 4 has a splash guard 8 that can move up and down on its side wall, and the placement plate 7 has a protrusion 9 on its side wall that pushes the splash guard 8 to move. When the mounting plate 4 moves downward, it drives the splash guard 8 to move downward. The splash guard 8 contacts the protrusion 9 on the placement plate 7, and the protrusion 9 pushes the splash guard 8 to move upward, so that the splash guard 8 is always placed on the side of the block raw material.
[0029] The bottom of the rectangular plate 1 is evenly provided with several rollers 10, and the side wall of the rectangular frame 1 is provided with symmetrically arranged handles 11. The rollers 10 facilitate the movement of the device by personnel, and the handles 11 facilitate the handling of the device by personnel.
[0030] The driving device 2 includes an inverted U-shaped frame 12 located at the top of the rectangular frame 1. A reduction motor 13 is provided on the inverted U-shaped frame 12. The output end of the reduction motor 13 extends into the inverted U-shaped frame 12 and is connected to a drive gear 14. A driven gear 15 is provided at one end of the positive and negative screw 3 located above the rectangular frame 1. A chain 16 meshes with the drive gear 14 and the driven gear 15. The reduction motor 13 drives the drive gear 14 to rotate, and the drive gear 14 drives the driven gear 15 and the positive and negative screw 3 to rotate through the chain 16.
[0031] The mounting plate 4 is provided with symmetrically arranged ears 17, and the ears 17 are provided with rods 18 that can move up and down. The end of the rod 18 located above the ears 17 is provided with a limiting ring 19. The splash guard 8 is located at the bottom of the rod 18. After the splash guard 8 contacts the protrusion 9 on the placement plate 7, it pushes the splash guard 8 to move upward, so that the splash guard 8 is always located on the side of the block raw material, and blocks the fragments generated when the block raw material is broken.
[0032] The geared motor 13, pressure sensor 5, and the corresponding display, power supply, and controller mentioned in this utility model can be provided by the manufacturer. Apart from that, the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon.
[0033] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, alterations, deletions of some features, additions of features, or recombinations of features to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the innovative principles of the present invention shall still fall within the scope of the technical solutions of the present invention.
Claims
1. A pressure device for testing and inspecting raw materials in highway engineering, comprising a rectangular frame, characterized in that: A driving device is provided above the rectangular frame; the output end of the driving device is connected to a positive and negative screw rod arranged symmetrically inside the rectangular frame, the top of the positive and negative screw rod is threadedly connected to a mounting plate, the bottom of the mounting plate is provided with a pressure sensor, the bottom of the pressure sensor is connected to a pressing plate sleeved on the positive and negative screw rod, and the bottom of the positive and negative screw rod is threadedly connected to a placement plate that cooperates with the pressing plate; the side wall of the mounting plate is provided with a splash guard that can move up and down, and the side wall of the placement plate is provided with a protrusion that pushes the splash guard to move.
2. The pressurizing device for testing and inspecting raw materials for highway engineering according to claim 1, characterized in that: The bottom of the rectangular plate is evenly provided with several rollers, and the side walls of the rectangular frame are provided with symmetrically arranged handles.
3. The pressurizing device for testing and inspecting raw materials for highway engineering according to claim 1, characterized in that: The driving device includes an inverted U-shaped frame at the top of a rectangular frame, a geared motor on the inverted U-shaped frame, an output end of the geared motor extending into the inverted U-shaped frame and connected to a drive gear, a driven gear at one end of the positive and negative screw located above the rectangular frame, and a chain meshing on the drive gear and the driven gear.
4. The pressurizing device for testing and inspecting raw materials for highway engineering according to claim 1, characterized in that: The mounting plate is provided with symmetrically arranged ears, and each ear has a rod that can move up and down. The end of the rod above the ear is provided with a limiting ring, and the splash guard is located at the bottom of the rod.