Concrete test mold
By embedding magnetic inserts on the bottom side of the concrete test mold and fixing them through rotation and engagement, the problem that the plastic test mold cannot be stably fixed on the vibration table is solved, the stability of the test mold and the uniformity and compactness of the concrete are improved, and the deviation in strength measurement is reduced.
Patent Information
- Application Number
- CN202420230721.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-01-31
AI Technical Summary
The existing plastic concrete test molds cannot be tightly fixed on the vibration table, resulting in irregular movement of the test molds, which are prone to deviation and fall, affecting the uniformity and compactness of the concrete, and thus leading to a deviation in strength measurement.
A concrete test mold is designed, with magnetic ring-shaped inserts embedded on the bottom side. The inserts are fixed in the groove by rotary engagement, and the test mold is fixed by magnetically and the stability is improved.
Through the magnetic fixation of the inlay, the test mold is more stable on the vibration table, reducing the risk of test mold deviation and falling, improving the uniformity and compactness of concrete, thereby reducing the deviation in the determination of concrete strength.
Smart Images
Figure CN222609945U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engineering experiments, in particular to a concrete test mold. Background Art
[0002] There is a concrete compaction process in engineering material testing. A magnetic vibration table is needed during the vibration. The main purpose is to compact the concrete in the test mold and exhaust the air through the frequency vibration generated by the magnetic vibration table.
[0003] There are two types of test molds on the market: plastic test molds and cast iron test molds. Among them, the cast iron test mold can be tightly adsorbed on the vibration table, which to a certain extent ensures that the vibration effects on the test blocks in the same group are basically the same, which is beneficial to reduce the deviation of the test results of the test blocks in the same group. However, the cast iron test mold is too heavy and easy to be dragged down when the mold is removed. Therefore, plastic test molds are mainly used in practice. However, since plastic test molds are not magnetic and cannot be tightly fixed on the table, vibration will cause the test mold to move irregularly, often running off the track, converging or deviating to one side, or even falling. Even with a large number of manpower to watch over it, it is difficult to keep the test mold relatively fixed to the vibration table. Affected by this, the uniformity and density of the concrete cannot be guaranteed, resulting in a large deviation in the actual measured concrete strength, and even affecting the evaluation of the concrete strength results. Utility Model Content
[0004] In order to solve the technical problems existing in the background technology, the utility model provides a concrete test mold.
[0005] A concrete test mold comprises a test mold body and an embedding block. The bottom side of the test mold body is provided with an embedding groove. The embedding block is made of ferromagnetic material and can be rotatably engaged in the embedding groove.
[0006] As a further optimization of the above scheme, the embedment block is annular and has a number of evenly distributed clips at equal angles on its outer circumference. The surrounding side of the embedding groove has a groove that can accommodate the clips. The groove is opened along the depth direction of the embedding groove and one side of it extends into an arc-shaped groove to accommodate the clips to be screwed in.
[0007] As a further optimization of the above solution, the clamping foot is adjacent to one side end face of the insert, the clamping groove is adjacent to the bottom wall of the clamping groove, and when the clamping foot is screwed into the clamping groove, the other side end face of the insert is flush with the bottom side plane of the test mold body.
[0008] As a further optimization of the above solution, the number of the clamping pins is not less than three.
[0009] As a further optimization of the above solution, the bottom side of the trial mold body is provided with a demoulding hole, and the installation position of the insert block corresponds to the demoulding hole so that the demoulding hole can be embedded in the inner hole of the insert block.
[0010] As a further optimization of the above solution, the ferromagnetic material is cast iron.
[0011] 1. A concrete test mold proposed in the utility model has a magnetic insert embedded in the bottom side of the plastic test mold, which can save costs and enhance the stability of the test mold on the vibration table.
[0012] 2. The concrete test mold proposed in the utility model has a snap-in engagement method in which the insert is rotated and screwed in, which greatly improves its assembly efficiency and is more conducive to disassembly and replacement when the test mold body is damaged. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the overall structure of a concrete test mold proposed by the utility model;
[0014] Figure 2 This is a structural cross-sectional view of a test mold body of a concrete test mold proposed by the utility model;
[0015] Figure 3 The utility model is a structural schematic diagram of an insert block of a concrete test mold. DETAILED DESCRIPTION
[0016] A concrete test mold proposed in this embodiment, referring to Figures 1 to 3 , including: a test mold body 1 and an insert 2, wherein the test mold body 1 is made of plastic material, the insert 2 is made of ferromagnetic material, specifically cast iron, and a groove 3 is provided on the bottom side of the test mold body 1, and the insert 2 can be rotatably engaged in the groove 3.
[0017] More specifically, the insert 2 is annular and has a plurality of feet 4 evenly distributed at equal angles on its outer circumference, and a groove 5 is provided on the circumference of the groove 3 for fitting the feet 4, and the groove 5 is opened along the depth direction of the groove 3 and has an arc-shaped groove 6 extending from one side for fitting the feet 4 to be screwed in. The rotating screwing method can not only firmly embed the insert 2 in the groove 3, but also can quickly replace it when the test mold body 1 is damaged or the insert 2 is stained with mortar.
[0018] Furthermore, the clamping foot 4 is adjacent to one side end face of the insert 2, the clamping groove 6 is adjacent to the bottom wall of the clamping groove 3, and when the clamping foot 4 is adapted to be screwed into the clamping groove 6, the other side end face of the insert 2 is flush with the bottom plane of the test mold body 1, so that the test mold is placed on the vibration table more stably.
[0019] Preferably, the number of the clamping feet 4 is not less than three to ensure that the insert 2 is stable and does not move around.
[0020] In addition, a demolding hole 11 is generally provided at the center of the bottom side of the test mold body 1. In order to enable the insert block to better stabilize the test mold body 1, the installation position of the insert block 2 can be made corresponding to the position of the demolding hole 11, so that the demolding hole 11 can be embedded in the inner hole of the insert block 2. Moreover, the bottom area of the insert block 2 should not be too small compared to the bottom area of the test mold body 1, and should occupy at least about 1 / 3. If it is too small, the fixing effect will be reduced, and if it is too large, it will cause material waste.
[0021] In this embodiment, the insert 2 can be rotatably screwed into the insert groove 3, and the test mold body 1 is fixed on the vibration table by utilizing the magnetism of the insert 2. At the same time, the rotational engagement method does not require external structural parts for fixation, making the removal and replacement of the insert 2 more convenient.
[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A concrete test mold, characterized in that: include: The test mold body (1) and the insert block (2) are provided with an insert groove (3) on the bottom side of the test mold body (1); the insert block (2) is made of ferromagnetic material and can be rotatably engaged in the insert groove (3).
2. The concrete test mold according to claim 1, characterized in that: The insert (2) is annular and has a plurality of evenly distributed clamping feet (4) on its outer circumference. The outer circumference of the embedding groove (3) has a groove (5) adapted to fit the clamping feet (4). The groove (5) is opened along the depth direction of the embedding groove (3) and has an arc-shaped clamping groove (6) extending from one side thereof to fit the clamping feet (4) to be screwed in.
3. The concrete test mold according to claim 2, characterized in that: The clamping foot (4) is adjacent to one end face of the insert (2), the clamping groove (6) is adjacent to the bottom wall of the insert groove (3), and when the clamping foot (4) is screwed into the clamping groove (6), the other end face of the insert (2) is flush with the bottom plane of the test mold body (1).
4. The concrete test mold according to claim 3, characterized in that: The number of the clamping pins (4) is not less than three.
5. The concrete test mold according to claim 2, characterized in that: The bottom side of the trial mold body (1) is provided with a demoulding hole (11), and the installation position of the insert (2) corresponds to the demoulding hole (11) so that the demoulding hole (11) can be embedded in the inner hole of the insert (2).
6. The concrete test mold according to claim 1, characterized in that: The test mold body (1) is made of plastic, and the ferromagnetic material is cast iron.