Test piece container for concrete rapid freezing and thawing testing machine
By designing a specimen container for a rapid freeze-thaw testing machine for concrete, and using a lifting block and limiting component to separate the specimen from the container, the problem of specimen adhesion was solved, and the extraction efficiency was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO WEILI COMMERCIAL CONCRETE CO LTD
- Filing Date
- 2025-05-31
- Publication Date
- 2026-05-19
AI Technical Summary
Concrete specimens tend to stick to the container after freeze-thaw tests, making them difficult to remove and affecting work efficiency.
A specimen container for a rapid freeze-thaw testing machine for concrete was designed, comprising a placement box, a water trough, a limiting plate, a receiving frame, a lifting block, a pressing plate, and a limiting component. The specimen can be separated from the container by the cooperation of the lifting block and the limiting component, making it easy to remove.
The process of removing the specimens was simplified, the removal time was reduced, and work efficiency was improved.
Smart Images
Figure CN224263124U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rapid freeze-thaw testing of concrete, specifically a specimen container for a rapid freeze-thaw testing machine for concrete. Background Technology
[0002] The concrete rapid freeze-thaw testing machine has an integrated structure, is simple and convenient to operate, and has the characteristics of small footprint and easy mobility. It is the preferred model for mobile laboratories, highways and concrete mixing plants. Before use, concrete needs to be tested in a repeated freezing and thawing environment. During the test, the concrete needs to be stored in a specimen container.
[0003] When conducting a concrete freeze-thaw test, concrete specimens must first be prepared. After preparation, the specimens need to be placed in a constant temperature and humidity chamber for curing, which takes up to 28 days. Before the test, the specimens also need to be soaked for less than four days. However, the hydration reaction of cement causes the concrete to stick to the inside of the specimen container after the freeze-thaw test, requiring the use of tools to remove the specimens. This process is time-consuming and reduces work efficiency. Utility Model Content
[0004] To address the shortcomings of existing technologies and solve the problem that concrete absorbs water, causing the specimens to stick to the inside of the specimen container after the freeze-thaw test, requiring tools to remove them and thus wasting time and reducing work efficiency, this invention proposes a specimen container for a rapid freeze-thaw testing machine for concrete.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The specimen container for a concrete rapid freeze-thaw testing machine of this utility model includes a placement box, a water trough is provided inside the placement box, a working component is provided inside the placement box, the working component includes a limiting plate fixedly connected inside the placement box, a receiving frame is fixedly connected inside the limiting plate, a lifting block is fixedly connected inside the receiving frame, a water leakage hole is provided inside the receiving frame, a certain gap is left between the bottom of the receiving frame and the bottom of the inner cavity of the placement box, a limiting plate is slidably connected inside the receiving frame, a placement frame is fixedly connected inside the limiting plate, and the inside of the placement frame is slidably connected to the outside of the lifting block.
[0006] Preferably, the placement box is provided with a pressing component, the pressing component includes a pressing plate slidably connected to the inside of the placement box, the bottom of the pressing plate is fixedly connected to the top of the placement frame, a sliding rod is fixedly connected to the bottom of the pressing plate, and a limiting plate is fixedly connected to the bottom of the sliding rod.
[0007] Preferably, the pressing assembly further includes a slide cylinder slidably connected to the outside of the slide rod, and a spring is fixedly connected between the bottom of the limiting plate and the bottom of the inner cavity of the slide cylinder.
[0008] Preferably, the placement box is provided with a limiting component. The limiting component includes a rotating rod rotatably connected to the bottom of the inner cavity of the placement box. The rotating rod passes through the limiting plate and is rotatably connected. A connecting rod is fixedly connected to the top of the rotating rod. A turntable is fixedly connected to the outside of the connecting rod. An auxiliary hole is opened inside the turntable. The auxiliary hole is round.
[0009] Preferably, the limiting component further includes a limiting block fixedly connected to the outside of the rotating rod. The limiting block passes through the pressing plate and is slidably connected. A support plate is rotatably connected to the outside of the connecting rod. The end of the support plate is fixedly connected to the inside of the placement box. A limiting head is fixedly connected to the top of the support plate. The outside of the limiting head is slidably connected to the inside of the auxiliary hole.
[0010] Preferably, the slide tube passes through the limiting plate, and the outer side of the slide tube is fixedly connected to the inside of the limiting plate.
[0011] Preferably, the rotating rod passes through the pressing plate and is slidably connected, and the connecting rod passes through the support plate.
[0012] The advantages of this utility model are:
[0013] 1. This utility model places the soaked specimen inside the placement frame and supports it with a lifting block. After the freeze-thaw test is completed, the specimen will stick to the inside of the placement frame. At this time, the placement frame can be pressed to move it into the receiving frame, thereby lifting the specimen with the lifting block and separating it from the placement frame. This makes it easier to pick up the specimen, reducing the difficulty of picking up the specimen and the time required to pick up the specimen, thus improving work efficiency.
[0014] 2. This utility model rotates a turntable, which drives the connecting rod to rotate, thereby driving the rotating rod to rotate, and then driving the limiting block to rotate. This allows the limiting block to move to the top of the pressing plate, thus restricting the position of the pressing plate and preventing it from directly returning to its original position, making it easier to pick up the specimen. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall top view structure in Embodiment 1;
[0017] Figure 2 This is a top view of the overall disassembled structure in Example 1;
[0018] Figure 3 This is a top view of the overall internal structure in Embodiment 1;
[0019] Figure 4 This is a bottom view of the disassembled structure of some components in Embodiment 1;
[0020] Figure 5 This is a top view of the internal component disassembly structure in Embodiment 1;
[0021] Figure 6 This is a top view of the partially disassembled component structure in Example 2.
[0022] In the diagram: 1. Placement box; 2. Water trough; 3. Limiting plate; 4. Receiving frame; 5. Lifting block; 6. Drain hole; 7. Limiting plate; 8. Placement frame; 9. Pressing plate; 10. Sliding rod; 11. Limiting plate; 12. Sliding cylinder; 13. Spring; 14. Rotating rod; 15. Connecting rod; 16. Limiting block; 17. Turntable; 18. Auxiliary hole; 19. Support plate; 20. Limiting head. Detailed Implementation
[0023] 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.
[0024] Example 1
[0025] Please see Figure 1-5 As shown, a specimen container for a rapid freeze-thaw testing machine for concrete includes a placement box 1, a water trough 2 inside the placement box 1, and a working component inside the placement box 1. The working component includes a limiting plate 3 fixedly connected inside the placement box 1, a receiving frame 4 fixedly connected inside the limiting plate 3, a lifting block 5 fixedly connected inside the receiving frame 4, a water leakage hole 6 inside the receiving frame 4, a certain gap between the bottom of the receiving frame 4 and the bottom of the inner cavity of the placement box 1, a limiting plate 7 slidably connected inside the receiving frame 4, a placement frame 8 fixedly connected inside the limiting plate 7, and a slidably connected inside the placement frame 8 to the outside of the lifting block 5.
[0026] During operation, the soaked specimen is placed inside the placement frame 8 and supported by the lifting block 5. After the freeze-thaw test is completed, the specimen will stick to the inside of the placement frame 8. At this time, the placement frame 8 can be pressed to move it into the receiving frame 4, thereby lifting the specimen by the lifting block 5 and separating it from the placement frame 8. This makes it easier to pick up the specimen, reducing the difficulty of picking up the specimen and the time required to pick up the specimen, thus improving work efficiency.
[0027] Furthermore, the water precipitated on the specimen can be transferred to the inside of the placement box 1 through the water leakage hole 6, and the water can be discharged to the outside of the placement box 1 through the water flow channel 2.
[0028] The placement box 1 is equipped with a pressing component, which includes a pressing plate 9 that is slidably connected inside the placement box 1. The bottom of the pressing plate 9 is fixedly connected to the top of the placement frame 8. A slide rod 10 is fixedly connected to the bottom of the pressing plate 9, and a limit plate 11 is fixedly connected to the bottom of the slide rod 10.
[0029] The pressing assembly also includes a slide cylinder 12 that is slidably connected to the outside of the slide rod 10, and a spring 13 is fixedly connected between the bottom of the limiting plate 11 and the bottom of the inner cavity of the slide cylinder 12.
[0030] During operation, pressing the pressing plate 9 presses down the placement frame 8 and the slide bar 10, thereby pressing down the spring 13, which allows the specimen to separate from the placement frame 8. After the specimen is removed, the spring 13 will drive the slide bar 10 to return to its original position, thereby driving the pressing plate 9 and the placement frame 8 to return to their original positions, which facilitates subsequent work.
[0031] The slide cylinder 12 passes through the limiting plate 3, and the outer side of the slide cylinder 12 is fixedly connected to the inside of the limiting plate 3.
[0032] During operation, the slide cylinder 12 passes through the limiting plate 3, thereby limiting the position of the slide cylinder 12 by the limiting plate 3.
[0033] Example 2
[0034] Please see Figure 6 As shown in the first embodiment, as another implementation of this utility model, the placement box 1 is provided with a limiting component. The limiting component includes a rotating rod 14 rotatably connected to the bottom of the inner cavity of the placement box 1. The rotating rod 14 passes through the limiting plate 3 and is rotatably connected. A connecting rod 15 is fixedly connected to the top of the rotating rod 14. A turntable 17 is fixedly connected to the outside of the connecting rod 15. An auxiliary hole 18 is opened inside the turntable 17. The auxiliary hole 18 is round.
[0035] The limiting component also includes a limiting block 16 fixedly connected to the outside of the rotating rod 14. The limiting block 16 passes through the pressing plate 9 and is slidably connected. A support plate 19 is rotatably connected to the outside of the connecting rod 15. The end of the support plate 19 is fixedly connected to the inside of the placement box 1. A limiting head 20 is fixedly connected to the top of the support plate 19. The outside of the limiting head 20 is slidably connected to the inside of the auxiliary hole 18.
[0036] During operation, rotating the turntable 17 causes the connecting rod 15 to rotate, which in turn causes the rotating rod 14 to rotate, which in turn causes the limiting block 16 to rotate. This allows the limiting block 16 to move to the top of the pressing plate 9, thereby restricting the position of the pressing plate 9 and preventing it from directly returning to its original position, thus facilitating the removal of the specimen.
[0037] By setting the interior of the auxiliary hole 18 to a circular shape, the position of the turntable 17 can be restricted in conjunction with the limiting head 20, but the turntable 17 can still be rotated.
[0038] Among them, the rotating rod 14 passes through the pressing plate 9 and is slidably connected, and the connecting rod 15 passes through the support plate 19.
[0039] During operation, the rotating rod 14 is slidably connected to the pressing plate 9, allowing the pressing plate 9 to move smoothly up and down.
[0040] The working principle is as follows: the soaked specimen is placed inside the placement frame 8, and the specimen is supported by the lifting block 5. After the freeze-thaw test is completed, the specimen will stick to the inside of the placement frame 8. At this time, by pressing the pressing plate 9, the placement frame 8 and the sliding rod 10 are pressed, which in turn presses the spring 13, so that the placement frame 8 enters the receiving frame 4. The lifting block 5 then lifts the specimen, separating it from the placement frame 8, making it easier to pick up the specimen. This reduces the difficulty of picking up the specimen and the time required to pick up the specimen, thereby improving work efficiency. After the specimen is picked up, the spring 13 will drive the sliding rod 10 to return to its original position, which will in turn drive the pressing plate 9 and the placement frame 8 to return to their original positions, thus facilitating subsequent work.
[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0042] 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.
Claims
1. A specimen container for a concrete rapid freeze-thaw testing machine, comprising a placement box (1), wherein a water trough (2) is provided inside the placement box (1); Its features are: The placement box (1) is equipped with a working component, which includes a limiting plate (3) fixedly connected to the inside of the placement box (1), a receiving frame (4) fixedly connected inside the limiting plate (3), a lifting block (5) fixedly connected inside the receiving frame (4), a water leakage hole (6) opened inside the receiving frame (4), and a certain gap between the bottom of the receiving frame (4) and the bottom of the inner cavity of the placement box (1). The receiving frame (4) is slidably connected to a limiting plate (7), and a placement frame (8) is fixedly connected inside the limiting plate (7). The placement frame (8) is slidably connected to the outside of the lifting block (5).
2. The specimen container for a rapid freeze-thaw testing machine for concrete according to claim 1, characterized in that: The placement box (1) is equipped with a pressing component. The pressing component includes a pressing plate (9) that is slidably connected inside the placement box (1). The bottom of the pressing plate (9) is fixedly connected to the top of the placement frame (8). A sliding rod (10) is fixedly connected to the bottom of the pressing plate (9). A limiting plate (11) is fixedly connected to the bottom of the sliding rod (10).
3. A specimen container for a rapid freeze-thaw testing machine for concrete according to claim 2, characterized in that: The pressing assembly also includes a slide cylinder (12) slidably connected to the outside of the slide rod (10), and a spring (13) is fixedly connected between the bottom of the limiting plate (11) and the bottom of the inner cavity of the slide cylinder (12).
4. A specimen container for a rapid freeze-thaw testing machine for concrete according to claim 1, characterized in that: The placement box (1) is provided with a limiting component inside. The limiting component includes a rotating rod (14) rotatably connected to the bottom of the inner cavity of the placement box (1). The rotating rod (14) passes through the limiting plate (3) and is rotatably connected. A connecting rod (15) is fixedly connected to the top of the rotating rod (14). A turntable (17) is fixedly connected to the outside of the connecting rod (15). An auxiliary hole (18) is provided inside the turntable (17). The auxiliary hole (18) is round.
5. A specimen container for a rapid freeze-thaw testing machine for concrete according to claim 4, characterized in that: The limiting assembly also includes a limiting block (16) fixedly connected to the outside of the rotating rod (14). The limiting block (16) passes through the pressing plate (9) and is slidably connected. A support plate (19) is rotatably connected to the outside of the connecting rod (15). The end of the support plate (19) is fixedly connected to the inside of the placement box (1). A limiting head (20) is fixedly connected to the top of the support plate (19). The outside of the limiting head (20) is slidably connected to the inside of the auxiliary hole (18).
6. A specimen container for a rapid freeze-thaw testing machine for concrete according to claim 3, characterized in that: The slide tube (12) passes through the limiting plate (3), and the outer side of the slide tube (12) is fixedly connected to the inside of the limiting plate (3).
7. A specimen container for a rapid freeze-thaw testing machine for concrete according to claim 4, characterized in that: The rotating rod (14) passes through the pressing plate (9) and is slidably connected, and the connecting rod (15) passes through the support plate (19).