Full-automatic immersion and baking circulation equipment for sand and gravel solidity test

Abstract

The application relates to the technical field of sand and stone firmness test, in particular to a full-automatic immersion-drying circulation equipment for sand and stone firmness test, which comprises a test device main body, a through opening penetrating into the inside of the test device main body, a mounting opening arranged on the bottom surface of the inside of the test device main body and a test frame body mounted in the mounting opening, a filter shell for placing sand and stone is mounted in the test frame body, a heating device for heating the test device main body is arranged in the test device main body, a cabinet door hingedly connected to the test device main body is arranged on one side of the through opening, a vibration device for vibrating the test frame body is arranged at the upper end of the inside of the test device main body, a connecting structure for facilitating the test frame body to be separated from the vibration device is arranged between the vibration device and the test frame body, the test frame body is connected to the vibration device through the connecting structure, and the test device main body is provided with a plugging structure at the lower end of the through opening, so that the test frame body can be conveniently separated from the test device main body and can be vibrated by the vibration device.

Description

Technical Field

[0001] This application relates to the technical field of sand and gravel soundness testing, and in particular to a fully automatic immersion and drying cycle device for sand and gravel soundness testing. Background Technology

[0002] The fully automatic immersion-drying circulation equipment for sand and gravel robustness testing mainly consists of a test device body, a through-hole leading to the interior of the test device body, an installation port on the bottom surface of the interior of the test device body, and a test frame installed in the installation port. The test frame has evenly spaced drainage holes and installation holes. A filter housing for placing sand and gravel is installed in the installation hole. The test device body is equipped with a heating device for heating the test device body. Sand and gravel are placed in the filter housing, and sodium sulfate solution is added to the test frame. The heating device is activated to heat the test device body. After heating is complete, the sodium sulfate solution is discharged, and the test device is allowed to dry the sand and gravel. Then, the test device body is rapidly cooled, completing the immersion-drying test of the sand and gravel.

[0003] However, during the heating process, the sand and gravel remain immersed in the sodium sulfate solution without moving, which may cause air bubbles to form in some sand and gravel piles, affecting the final test results. To solve this technical problem, the existing technology uses a vibration device for the test frame. The output end of the vibration device is welded to the upper surface of both sides of the test frame. During the sand and gravel immersion process, the vibration device is activated to drive the test frame to vibrate, thereby causing the sand and gravel to vibrate and preventing air bubbles from forming in the sand and gravel pile. However, since the test frame needs to be in frequent contact with the sodium sulfate solution, after long-term use, the mounting holes inside the test frame are worn and enlarged, which will cause the filter shell placed in the mounting holes to be unable to be driven by the test frame, resulting in the sand and gravel inside not being vibrated. At this time, the test frame needs to be replaced, but the connection between the test frame and the vibration device makes it quite troublesome for the staff to replace the test frame. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this application is to provide a fully automated immersion and drying cycle device for sand and gravel robustness testing, which solves the technical problem in the prior art where replacing the test frame inside the main body of the test device is very troublesome due to the connection between the test frame and the vibration device.

[0005] The above-mentioned objective of this application is achieved through the following technical solution: a fully automatic immersion drying and circulation device for sand and gravel robustness testing, comprising a main body of the testing device, a through-hole extending into the interior of the main body of the testing device, an installation port opened on the bottom surface inside the main body of the testing device, and a test frame installed in the installation port. The test frame has evenly spaced drainage holes and installation holes inside, and a filter housing for placing sand and gravel is installed in the installation hole. The main body of the testing device is equipped with a heating device for heating the main body of the testing device. A hinged cabinet door is provided on one side of the through-hole, and a vibration device for vibrating the test frame is provided at the upper end inside the main body of the testing device. A connecting structure is provided between the vibration device and the test frame to facilitate the test frame's detachment from the vibration device. The vibration device is connected to the test frame through the connecting structure. A sealing structure is provided at the lower end of the through-hole of the main body of the testing device to facilitate the detachment of the test frame from the main body of the testing device.

[0006] Furthermore, the connection structure includes a connecting strip fixedly connected to the output end of the vibration device and a fixing strip fixedly connected to the upper surface of the test frame. The end of the connecting strip opposite to the opening is provided with a T-shaped groove extending along the length of the connecting strip. The T-shaped groove penetrates the bottom surface of the connecting strip. The upper surface of the fixing strip is fixedly provided with a T-shaped strip corresponding to the T-shaped groove, and the T-shaped strip is inserted into the T-shaped groove.

[0007] Furthermore, the sealing structure includes a sealing port that connects to and installs through the main body of the test device, insertion slots on both sides and the bottom surface of the sealing port, and a sealing plate that is inserted into the main body of the test device through the insertion slots and seals the sealing port.

[0008] By adopting the above technical solution, when the test frame needs to be replaced, pull the sealing plate upward to disengage it from the sealing opening. Then, pull the test frame outward from the main body of the test device so that the T-shaped strip disengages from the T-groove. This allows the test frame to be directly removed. Then, pick up the new test frame, align the T-shaped strip with the T-groove, and push the new test frame into the installation opening so that the T-shaped strip is inserted into the T-groove. Next, align the sealing plate with the insertion groove and insert it so that the sides and bottom of the sealing plate are embedded in the insertion groove, forming a concave-convex fit to prevent sodium sulfate solution from flowing out from the gap between the sealing plate and the insertion groove. This completes the replacement of the test frame, making the test frame easy to replace while allowing it to be vibrated by the vibration device, making the replacement of the test frame even more convenient.

[0009] Furthermore, extrusion rubber is fixedly provided on both sides of the insertion slot.

[0010] By adopting the above technical solution, the extruded rubber is used to increase the friction of the sealing plate, so that the sealing plate can be stably installed in the insertion groove, and further fills the gap between the sealing plate and the insertion groove, thereby improving the sealing effect of the sealing plate.

[0011] Furthermore, the test frame includes a frame body and a mounting plate inserted into the bottom of the frame body. The water leakage hole and the mounting hole are opened on the mounting plate. Both the upper and lower end faces of the test frame are through. An insertion interface is opened at the bottom of the side of the test frame near the through opening. The mounting plate is inserted into the frame body through the insertion interface.

[0012] While the sealing and connecting structures facilitate the replacement of the test frame, the area with the mounting hole suffers the most severe damage from sodium sulfate solution corrosion. Corrosion of other parts of the test frame does not render it unusable, leading to high costs associated with replacing the entire frame. This application solves this problem by defining the test frame as a main body and a mounting plate. When only the mounting plate is severely damaged, rendering the test frame unusable, simply pull the sealing plate upwards to detach it from the sealing opening, then pull the mounting plate outwards from the main body of the test device to detach it from the frame body, and replace it with a new mounting plate. This saves costs and extends the service life of the test frame.

[0013] Furthermore, the upper surface of the sealing plate is provided with a gripping plate, the gripping plate has a through opening in the middle, and the upper surface of the sealing plate is provided with a storage structure for storing the gripping plate.

[0014] Furthermore, the storage structure includes a storage groove formed on the upper surface of the sealing plate and a support spring disposed in the storage groove for pushing the grip plate out of the storage groove. One end of the support spring is fixedly connected to the bottom surface of the storage groove, and the other end is fixedly connected to the bottom surface of the grip plate.

[0015] While the sealing structure facilitates the replacement of the test frame, the sealing plate becomes slippery on the side in contact with the sodium sulfate solution due to prolonged contact, causing the operator to slip when removing it. Although a handle on the upper surface of the sealing plate could solve this problem, it would prevent the cabinet door from closing. The storage structure addresses this issue. When the cabinet door is closed, the bottom of the door presses against the handle, retracting it into the storage groove. When the door is open, a support spring pushes the handle out of the groove, allowing the operator to grip it through the opening, thus facilitating the removal of the sealing plate.

[0016] Furthermore, the storage structure and the gripping plate cover the upper surface of the sealing plate.

[0017] By adopting the above technical solution, the storage structure and the handle plate covering the upper surface of the sealing plate can be used to press the bottom of the cabinet door into the storage groove. The support spring will also push the handle plate to stick to the bottom of the cabinet door, filling the gap between the sealing plate and the cabinet door and preventing heat loss when the main body of the test device is heated.

[0018] Furthermore, the grip plate is made of high-temperature resistant rubber.

[0019] By adopting the above technical solution, the rubber is elastic, and the high-temperature resistant rubber can prevent the grip from being damaged after contact with hot air. The elastic rubber can reduce the rigid contact between the grip and the cabinet door, reduce the wear and tear on the cabinet door and the grip, and improve the service life of the grip and the cabinet door.

[0020] Furthermore, multiple support springs are provided along the length of the receiving groove.

[0021] The above technical solution is used to provide sufficient support for the grip plate.

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

[0023] By designing the connecting and sealing structures, when the test frame needs to be replaced, the sealing plate is pulled upwards to disengage from the sealing opening. Then, the test frame is pulled outwards from the main body of the test device, causing the T-shaped strip to disengage from the T-groove. This allows for direct removal of the test frame. A new test frame is then picked up, the T-shaped strip aligned with the T-groove, and the new test frame is pushed into the mounting opening, allowing the T-shaped strip to insert into the T-shape. The sealing plate is then aligned with the insertion groove and inserted, so that the sides and bottom of the sealing plate are embedded in the insertion groove, forming a concave-convex fit to prevent sodium sulfate solution from flowing out from the gap between the sealing plate and the insertion groove. This completes the replacement of the test frame, making it easy to replace while also allowing it to be vibrated by the vibration device, further facilitating the replacement process. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0025] Figure 2 It is along Figure 1 Sectional view of line AA in the middle;

[0026] Figure 3 yes Figure 2 Enlarged view of section A in the middle;

[0027] Figure 4 This is another view of the overall structure of the embodiment;

[0028] Figure 5 It is along Figure 1A cross-sectional view along the BB line.

[0029] Reference numerals: 1. Main body of the test device; 10. Test frame; 100. Main body of the frame; 101. Mounting plate; 11. Cabinet door; 12. Vibration device; 2. Connecting structure; 20. Connecting strip; 21. Fixing strip; 22. T-slot; 23. T-strip; 3. Sealing structure; 30. Sealing port; 31. Insertion groove; 32. Sealing plate; 33. Extruded rubber; 4. Grip plate; 40. Through port; 5. Storage structure; 50. Storage groove; 51. Supporting spring. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] Example, refer to Figure 1 , Figure 2 , Figure 3 as well as Figure 4 An automated immersion-drying circulation device for testing the robustness of sand and gravel includes a core component, the main body 1 of the testing device. An opening is provided on the outer side of the main body 1, penetrating directly into its interior for easy operation and observation. At the bottom of the interior of the main body 1, an installation port is provided for mounting a specially designed test frame 10. This test frame 10 not only has evenly distributed drainage holes to ensure smooth liquid drainage during the test, but also mounting holes for fixing a filter housing specifically designed to hold and isolate the sand and gravel sample.

[0032] To simulate the durability of sand and gravel under different temperature conditions, a heating device is integrated inside the main body 1 of the test apparatus, which can precisely control the temperature of the test environment. On one side of the opening, a cabinet door 11 connected to the main body 1 of the test apparatus by hinges provides convenient access for operators.

[0033] Furthermore, to enhance the uniform heating and mass exchange efficiency of the sand and gravel samples during the experiment, a vibration device 12 is installed on the upper part of the main body 1 of the experimental apparatus. This device achieves a flexible and stable connection with the experimental frame 10 through an innovative connection structure 2. Specifically, the connection structure 2 consists of two parts: first, a connecting strip 20 fixedly connected to the output end of the vibration device 12, with a T-shaped groove 22 cut along its length at one end of the connecting strip 20, which extends through the bottom of the connecting strip 20; second, a fixing strip 21 fixed to the top of the experimental frame 10, with a T-shaped strip 23 fixedly installed on the upper surface of the fixing strip 21, which perfectly matches the T-shaped groove 22. The T-shaped strip 23 can be easily inserted and fixed in the T-shaped groove 22, ensuring effective transmission of vibration energy and facilitating quick assembly and disassembly of the experimental frame 10.

[0034] Considering the need to replace the test frame 10 after the test, the equipment is also designed with a highly efficient sealing structure 3. This sealing structure 3 includes a sealing port 30 connected to the installation port, insertion slots 31 on both sides and the bottom of the sealing port 30, and a sealing plate 32 that can be tightly inserted into the main body 1 of the test device through the insertion slots 31. The sealing plate 32 is used to completely seal the sealing port 30. When it is necessary to replace the test frame 10, the operator only needs to lift the sealing plate 32 to disengage it from the sealing port 30, and then pull the test frame 10 outward to allow the T-shaped strip 23 to slide out of the T-shaped groove 22, thus completing the disassembly of the old test frame 10. Then, the new test frame 10 is aligned with the installation port and pushed in until the T-shaped strip 23 is smoothly inserted into the T-shaped groove 22. Finally, the sealing plate 32 is aligned with the insertion slot 31 and inserted again. Utilizing the concave and convex design on its sides and bottom, it forms a tight fit with the insertion slot 31, effectively preventing test media such as sodium sulfate solution from leaking from the tiny gap between the sealing plate 32 and the insertion slot 31, thus successfully completing the replacement process of the test frame 10.

[0035] In summary, this equipment not only enables the rapid replacement of the test frame 10, but also ensures its stable vibration under the action of the vibration device 12, greatly improving the convenience and efficiency of the sand and gravel robustness test.

[0036] In this embodiment, compression rubber 33 is fixedly provided on both sides of the insertion groove 31. The compression rubber 33 is used to increase the friction of the sealing plate 32, so that the sealing plate 32 can be stably installed in the insertion groove 31, and further fills the gap between the sealing plate 32 and the insertion groove 31, thereby improving the sealing effect of the sealing plate 32.

[0037] Although the sealing structure 3 and the connecting structure 2 greatly facilitate the replacement process of the test frame 10, in actual use, staff found that the strong corrosiveness of the sodium sulfate solution caused the most significant damage to specific parts of the test frame 10—especially those with mounting holes. It is worth noting that even after corrosion, the damage to other areas of the test frame 10 is usually not enough to directly cause the entire test frame 10 to lose its function. Therefore, if the entire test frame 10 needs to be replaced due to localized damage, it will undoubtedly significantly increase the testing cost.

[0038] To specifically address this technical challenge, this embodiment innovatively optimizes the structure of the test frame 10. Specifically, this embodiment designs the test frame 10 as a detachable modular structure, including a frame body 100 and a mounting plate 101 that can be inserted into the bottom of the frame body 100. This design makes the mounting plate 101 a key component directly subjected to the corrosive effects of sodium sulfate solution, while drainage holes and mounting holes are provided on the mounting plate 101 to facilitate the placement of sand and gravel samples and the drainage of liquid during the test.

[0039] Furthermore, to ensure smooth communication between the interior of the test frame 10 and the external environment, both the upper and lower end faces of the test frame 10 are designed to be open. This not only facilitates the exchange of materials during the experiment but also makes it easier to assemble and disassemble the mounting plate 101. Additionally, in this embodiment, a plug-in interface is provided on the bottom surface of the test frame 10 near the opening. This design allows the mounting plate 101 to be plugged into the frame body 100 via the plug-in interface.

[0040] When the mounting plate 101 in the test frame 10 becomes severely worn and affects its overall use, the operator only needs to replace it according to the established steps: First, lift the sealing plate 32 upwards to easily detach it from the sealing opening 30; then, pull the mounting plate 101 outwards to smoothly slide it out of the insertion interface of the frame body 100; finally, align a brand new mounting plate 101 with the insertion interface and gently push it in until it is securely connected to the frame body 100. This replacement process is not only simple and easy to perform, but also greatly saves costs and significantly extends the overall service life of the test frame 10. Through this design optimization, this embodiment successfully achieves the goal of minimizing test costs while ensuring test efficiency and accuracy.

[0041] Although the sealing structure 3 greatly facilitates the replacement process of the test frame 10, a new problem arose during actual operation when the staff attempted to remove the sealing plate 32. Because the sealing plate 32 had been blocking the sodium sulfate solution for a long time, its surface in contact with the solution gradually became abnormally smooth. This change made it extremely easy for the staff to slip when removing the sealing plate 32, thus increasing the difficulty and danger of the operation.

[0042] To address this issue, an intuitive solution is to add a handle to the upper surface of the sealing plate 32 so that workers can more securely grip and pull out the sealing plate 32. However, this design introduces another problem: the addition of the handle interferes with the normal closing of the cabinet door 11, thereby affecting the sealing and safety of the entire test apparatus.

[0043] To balance ease of operation and overall performance of the testing apparatus, the design of the sealing plate 32 has been further optimized in this embodiment. Specifically, referring to... Figure 5 In this embodiment, a gripping plate 4 is provided on the upper surface of the sealing plate 32. A through opening 40 is opened in the middle of the gripping plate 4, which not only maintains the overall structural integrity of the sealing plate 32, but also provides a reliable gripping point for the staff.

[0044] To ensure convenient use of the grip plate 4 without interfering with the closure of the cabinet door 11, this embodiment also includes a storage structure 5. This storage structure 5 includes a storage groove 50 formed on the upper surface of the sealing plate 32, and a support spring 51 disposed inside the storage groove 50. One end of the support spring 51 is firmly fixed to the bottom surface of the storage groove 50, while the other end is fixedly connected to the bottom surface of the grip plate 4.

[0045] When the cabinet door 11 is closed, the bottom of the cabinet door 11 naturally presses against the handle 4, causing the handle 4 to retract into the storage groove 50 under the action of the support spring 51, thus ensuring the smooth closing of the cabinet door 11. When the cabinet door 11 is opened, the support spring 51 exerts its elastic force, pushing the handle 4 out of the storage groove 50, allowing the operator to easily grasp the handle 4 through the through-hole 40, and conveniently pull out the sealing plate 32.

[0046] Through this design optimization, this embodiment not only solves the problem of slippage when the sealing plate 32 is pulled out, but also ensures the normal closure of the cabinet door 11 and the overall performance of the test device. This improves the convenience and safety of the sand and gravel robustness test operation.

[0047] In this embodiment, the storage structure 5 and the grip plate 4 cover the upper surface of the sealing plate 32. The storage structure 5 and the grip plate 4 covering the upper surface of the sealing plate 32 allow the bottom of the cabinet door 11 to press against the grip plate 4 and retract into the storage groove 50. The support spring 51 also pushes the grip plate 4 to press against the bottom surface of the cabinet door 11, filling the gap between the sealing plate 32 and the cabinet door 11, and preventing heat loss when the main body 1 of the test device is heated.

[0048] In this embodiment, the grip plate 4 is made of high-temperature resistant rubber, and multiple support springs 51 are provided along the length of the receiving groove 50. The rubber is elastic, and the high-temperature resistant rubber can prevent the grip plate 4 from being damaged after contact with hot air. The elastic rubber can reduce the rigid contact between the grip plate 4 and the cabinet door 11, reduce the wear of the cabinet door 11 and the grip plate 4, and improve the service life of the grip plate 4 and the cabinet door 11. The multiple support springs 51 are used to provide sufficient support force for the grip plate 4.

[0049] Specific implementation process: When only the mounting plate 101 in the test frame 10 is severely damaged, making the test frame 10 unusable, simply pull the sealing plate 32 upward to make the sealing plate 32 disengage from the sealing opening 30, and then pull the mounting plate 101 outward from the main body 1 of the test device to make the mounting plate 101 disengage from the main body 100 of the frame, and then replace it with a new mounting plate 101.

[0050] When the mounting plate 101 and the main body 100 of the test frame 10 are both severely worn, rendering the test frame 10 unusable, pull the sealing plate 32 upwards to disengage it from the sealing opening 30. Then pull the test frame 10 outwards from the main body 1 of the test device so that the T-shaped strip 23 disengages from the T-shaped groove 22. This allows the test frame 10 to be directly removed. Then, pick up a new test frame 10 and align the T-shaped strip 23 with the T-shaped groove 22. Push the new test frame 10 into the mounting opening so that the T-shaped strip 23 is inserted into the T-shape. Then, align the sealing plate 32 with the insertion groove 31 and insert it so that the sides and bottom of the sealing plate 32 are embedded in the insertion groove 31, forming a concave-convex fit to prevent sodium sulfate solution from flowing out from the gap between the sealing plate 32 and the insertion groove 31. This completes the replacement of the test frame 10.

[0051] The embodiments described in this specific implementation are 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 fully automatic immersion drying and circulation device for sand and gravel robustness testing, comprising a test device body (1), a through-hole extending into the interior of the test device body (1), an installation port on the bottom surface of the interior of the test device body (1), and a test frame (10) installed in the installation port, wherein the test frame (10) is provided with uniformly distributed drainage holes and installation holes, a filter shell for placing sand and gravel is installed in the installation hole, a heating device for heating the test device body (1) is provided inside the test device body (1), a cabinet door (11) hinged to the test device body (1) is provided on one side of the through-hole, and a vibration device (12) for vibrating the test frame (10) is provided at the upper end of the interior of the test device body (1), characterized in that, A connecting structure (2) is provided between the vibration device (12) and the test frame (10) to facilitate the test frame (10) from detaching from the vibration device (12). The vibration device (12) is connected to the test frame (10) through the connecting structure (2). The main body (1) of the test device is provided with a sealing structure (3) at the lower end of the opening to facilitate the detachment of the test frame (10) from the main body (1). The connecting structure (2) includes a connecting strip (20) fixedly connected to the output end of the vibration device (12) and a fixing strip (21) fixedly connected to the upper surface of the test frame (10). The connecting strip (20) is relatively... One end of the opening is provided with a T-shaped groove (22) extending along the length of the connecting strip (20). The T-shaped groove (22) penetrates the bottom surface of the connecting strip (20). The upper surface of the fixing strip (21) is fixed with a T-shaped strip (23) corresponding to the T-shaped groove (22). The T-shaped strip (23) is inserted into the T-shaped groove (22). The sealing structure (3) includes a sealing port (30) that penetrates the main body of the test device (1) and connects to the installation port, insertion grooves (31) opened on both sides and the bottom surface of the sealing port (30), and a sealing plate (32) that is inserted into the main body of the test device (1) through the insertion grooves (31) and seals the sealing port (30).

2. The fully automatic immersion-drying circulating equipment for sand and gravel soundness testing according to claim 1, characterized in that, The insertion slot (31) is fixed with extrusion rubber (33) on both sides.

3. The fully automatic immersion-drying circulating equipment for sand and gravel soundness testing according to claim 1, characterized in that, The test frame (10) includes a frame body (100) and a mounting plate (101) inserted into the bottom of the frame body (100). The water leakage hole and the mounting hole are opened on the mounting plate (101). The upper and lower end faces of the test frame (10) are both through. The bottom end of the side of the test frame (10) near the opening is provided with an insertion interface. The mounting plate (101) is inserted into the frame body (100) through the insertion interface.

4. The fully automatic immersion-drying circulating equipment for sand and gravel soundness testing according to claim 1, characterized in that, The sealing plate (32) has a gripping plate (4) on its upper surface. The gripping plate (4) has a through opening (40) in the middle. The sealing plate (32) has a storage structure (5) for storing the gripping plate (4).

5. The fully automatic immersion-drying circulating equipment for sand and gravel soundness testing according to claim 4, characterized in that, The storage structure (5) includes a storage groove (50) formed on the upper surface of the sealing plate (32) and a support spring (51) provided in the storage groove (50) for pushing the grip plate (4) out of the storage groove (50). One end of the support spring (51) is fixedly connected to the bottom surface of the storage groove (50), and the other end is fixedly connected to the bottom surface of the grip plate (4).

6. The fully automatic immersion-drying circulating equipment for sand and gravel soundness testing according to claim 4, characterized in that, The storage structure (5) and the grip plate (4) cover the upper surface of the sealing plate (32).

7. The fully automatic immersion-drying circulating equipment for sand and gravel soundness testing according to claim 4, characterized in that, The grip plate (4) is made of high-temperature resistant rubber.

8. The fully automatic immersion-drying circulating equipment for sand and gravel soundness testing according to claim 5, characterized in that, The support springs (51) are provided in multiple ways along the length of the receiving groove (50).

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