Detachable mold for concrete test block

Abstract

The utility model discloses a concrete test block detachable mould, which relates to the technical field of building machinery and comprises a vibration table clamping plate, a bottom plate, rubber rings and a cylindrical baffle, the bottom plate is arranged at the center of the top of the vibration table clamping plate, more than two grooves are uniformly arranged at the top of the bottom plate, and the rubber rings are arranged in the grooves. A cylindrical baffle is vertically arranged above the rubber ring, and the bottom end of the cylindrical baffle is fixedly connected with the bottom wall of the groove. According to the detachable mold for the concrete test block, the concrete test block is demolded through vibration, manual operation is reduced, the demolding efficiency and success rate can be greatly improved, the loss of the concrete test block can be reduced, and the quality of the concrete test block is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of construction machinery, and more specifically to a detachable membrane for concrete test blocks. Background Art

[0002] Demolding is a key step in the production of concrete test blocks. The success or failure of demoulding not only affects the integrity of the test block but also the strength, mechanical properties and various indicators of the concrete.

[0003] Common demolding methods include manual demolding (percussion and vibration), mechanical demolding (pneumatic and hydraulic demolding), and demolding with auxiliary agents. The demolding process is difficult and inconvenient. Mishandling errors can result in problems such as chipped corners at the bottom of the test block, which not only affects the test block's appearance but, more importantly, can directly impact the test results of its mechanical properties. For example, if the test block has not yet reached sufficient strength during demolding, it may crack during subsequent curing or testing, thus failing to accurately reflect the concrete's true strength. Furthermore, improper demolding can affect the accuracy of the test block's size and shape, thereby affecting the simulation of stress distribution—all key factors influencing concrete test results. Furthermore, if improper demolding causes the test block to break or splash during demolding, it can damage and contaminate the testing equipment. If the test block is damaged during demolding, additional repair and replacement work is required, which adds unnecessary cost and time. Utility Model Content

[0004] The technical problem to be solved by this utility model is that existing demoulding methods are difficult to operate, inefficient, and easily damage concrete specimens, affecting the results of subsequent mechanical properties tests. To overcome the shortcomings of the existing technology, this utility model proposes a detachable concrete test block mold that demoulds the concrete specimen through vibration, reducing manual operation, greatly improving the efficiency and success rate of demoulding, and reducing the loss of concrete specimens, thereby ensuring the quality of the concrete specimens.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a detachable membrane for concrete test blocks, comprising a vibration table clamp, a bottom plate, a rubber ring and a cylindrical baffle. The bottom plate is arranged at the center of the top of the vibration table clamp, more than two grooves are evenly arranged on the top of the bottom plate, rubber rings are arranged in the grooves, a cylindrical baffle is vertically arranged above the rubber ring, and the bottom end of the cylindrical baffle is fixedly connected to the bottom wall of the groove.

[0007] In a better technical solution of the present invention, the base plate, the rubber ring and the cylindrical baffle are each provided with more than two bolt holes, and the bolt holes on the base plate, the rubber ring and the cylindrical baffle are aligned with each other, and the fastening bolts pass through the bolt holes to connect the base plate, the rubber ring and the cylindrical baffle into one.

[0008] In a preferred technical solution of the present invention, the groove is a cylindrical groove, and the bolt hole located on the base plate is connected to the groove.

[0009] In a preferred technical solution of the present invention, the horizontal cross-sectional dimension of the rubber ring is the same as the horizontal cross-sectional dimension of the cylindrical baffle.

[0010] In a preferred technical solution of the present invention, a mounting groove is provided at the center of the vibration table clamping plate, and the base plate can be detachably mounted in the mounting groove.

[0011] The beneficial effects of the utility model are:

[0012] 1. By setting the rubber ring, the elastic buffer design can reduce the damage to the concrete specimen and ensure the integrity of the test block. On the other hand, it can also prevent the outflow of water in the concrete when adding concrete, avoiding affecting the strength and various properties of the concrete specimen.

[0013] 2. Through the detachable mold, vibration can reduce manual operation to demould the concrete specimen, greatly improve the efficiency and success rate of demoulding, and reduce the loss of concrete specimens.

[0014] 3. Compared with traditional mechanical demoulding equipment, this device has lower cost and simpler maintenance.

[0015] 4. Environmentally friendly, it reduces dust during operation and reduces the impact on the environment.

[0016] 5. This device significantly improves production efficiency and reduces manpower and time consumption by optimizing the operating process.

[0017] 6. Fixing the bottom plate to the vibration table through the vibration table clamp can protect the vibration table and reduce equipment loss.

[0018] 7. This device is designed with full consideration of operational safety, reducing potential risks during operation and ensuring the safety of users.

[0019] 8. This device is highly adaptable and versatile and can be used in the following areas: compressive strength testing, flexural strength testing, durability testing, chloride ion penetration resistance testing, fatigue life testing, elastic modulus determination, and material development. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a detachable membrane for concrete test blocks provided by a specific embodiment of the utility model;

[0021] Figure 2 It is a structural diagram of the vibration table splint;

[0022] Figure 3 It is a structural diagram of the base plate;

[0023] Figure 4 It is a structural diagram of the rubber ring;

[0024] Figure 5 It is a structural diagram of a cylindrical baffle.

[0025] In the picture:

[0026] 1. Vibration table clamp; 11. Mounting slot; 2. Bottom plate; 21. Groove; 3. Rubber ring; 4. Cylindrical baffle; 5. Bolt hole. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0028] like Figure 1-5 As shown, an embodiment provides a detachable mold for concrete test blocks, including a vibration table clamp 1, a base plate 2, a rubber ring 3, and a cylindrical baffle 4. The base plate 2 is provided at the top center of the vibration table clamp 1, and two or more grooves 21 are evenly provided on the top of the base plate 2. The rubber ring 3 is provided in the groove 21, and a cylindrical baffle 4 is vertically provided above the rubber ring 3, and the bottom end of the cylindrical baffle 4 is fixedly connected to the bottom wall of the groove 21. In this embodiment, the vibration table clamp 1 is fixed to the vibration table, which can protect the vibration table and reduce equipment loss. When in use, concrete is poured into the cylindrical baffle 4 and vibrated and compacted under the action of the vibration table to obtain a concrete specimen. The base plate 2 is detachably connected to the vibration table clamp 1, and then the base plate 2 and the concrete specimen on the base plate 2 can be removed together after the vibration is completed, and placed in a suitable place for curing and molding, thereby ensuring the molding quality. The rubber ring 3 is located between the cylindrical baffle 4 and the bottom wall of the groove 21. It acts as a buffer, minimizing damage to the concrete specimen and ensuring its integrity. It also prevents moisture from escaping during concrete addition, preventing it from affecting the specimen's strength and performance. The number of cylindrical baffles 4 matches the number of grooves 21, and their positions correspond one-to-one with those of the grooves 21, enabling the simultaneous pouring of multiple concrete specimens and improving work efficiency.

[0029] Specifically, the base plate 2, rubber ring 3, and cylindrical baffle 4 are each provided with two or more bolt holes 5. The bolt holes 5 on the base plate 2, rubber ring 3, and cylindrical baffle 4 are aligned with each other. Fastening bolts pass through the bolt holes 5 to connect the base plate 2, rubber ring 3, and cylindrical baffle 4 together. In this embodiment, the bolt holes 5 are evenly arranged circumferentially along the central axis of the rubber ring 3. When the fastening bolts are tightened, the cylindrical baffle 4 compresses the rubber ring 3, causing it to deform adaptively, thereby sealing the connection gap between the base plate 2, rubber ring 3, and cylindrical baffle 4, preventing moisture from escaping during concrete pouring. Furthermore, the use of fastening bolts to secure the cylindrical baffle 4 facilitates installation and removal, reducing labor and time consumption.

[0030] Specifically, the groove 21 is a cylindrical groove, and the bolt hole 5 located on the base plate 2 is connected to the groove 21. In this embodiment, the base plate 2 is a rectangular plate with an end surface dimension of 650×450 mm. The diameter of the groove 21 is 150 mm, and there are six grooves 21 in total. The distance between the nearest edge of the base plate 2 is 50 mm, and the spacing between adjacent grooves 21 is also 50 mm. The inner diameter of the rubber ring 3 is 100 mm, and the outer diameter is 150 mm.

[0031] Specifically, the horizontal cross-sectional dimension of the rubber ring 3 is the same as the horizontal cross-sectional dimension of the cylindrical baffle 4 .

[0032] Specifically, a mounting groove 11 is provided at the center of the vibration table clamping plate 1, and the base plate 2 can be detachably mounted in the mounting groove 11. In this embodiment, the depth of the mounting groove 11 should be greater than the thickness of the base plate 2, and the mounting groove 11 can play a role in positioning the base plate 2, facilitating installation operations.

[0033] Working principle: When in use, first fix the vibration table clamp 1 on the 750×750mm vibration table, place the base plate 2 at the center of the vibration table clamp 1, lay the rubber ring 3 in the groove 21 of the base plate 2, align the bolt holes 5 on the base plate 2 with the bolt holes 5 on the rubber ring 3, align the cylindrical baffle 4 and place it on the base plate 2, align the bolt holes 5 of the base plate 2, rubber ring 3 and cylindrical baffle 4, and tighten them with fastening bolts to complete the assembly of the mold. Then, concrete is poured into the cylindrical baffle 4. The concrete specimen is vibrated for a suitable duration and frequency. After the vibration is completed, the vibration table clamp 1 is removed, and the bottom plate 2 and the concrete specimen are removed and placed in a suitable place to be cured and formed. After curing and forming, the bottom plate 2 and the concrete specimen are fixed on the vibration table again and vibrated for a period of time. A slight vibration is performed at a position near the cylindrical baffle 4 outside the concrete structure to loosen the cylindrical baffle 4 and the concrete specimen, thereby facilitating demoulding. The vibration amplitude should be moderate to avoid adverse effects on the concrete structure. Finally, the bolts are unscrewed, the cylindrical baffle 4 is removed, and the concrete specimen is carefully demoulded. After demoulding, the concrete specimen is placed in a suitable location for 28 days of curing to ensure that it meets the test standards. In addition, during the demolding process of the concrete specimen, a small jack can be used to carefully push the concrete specimen out from the appropriate position. During the operation, attention should be paid to uniform force to avoid damaging the concrete specimen. Alternatively, tools such as a crowbar can be used to gently pry the contact edge between the concrete specimen and the cylindrical baffle 4, but care should be taken to avoid damaging the concrete specimen.

[0034] The present invention is described through preferred embodiments. Those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application are also within the scope of protection of the present invention.

Claims

1. A detachable concrete test block membrane, characterized by: The invention comprises a vibration table clamping plate (1), a bottom plate (2), a rubber ring (3) and a cylindrical baffle (4); the bottom plate (2) is arranged at the top center of the vibration table clamping plate (1); two or more grooves (21) are evenly arranged on the top of the bottom plate (2); the rubber ring (3) is arranged in the groove (21); the cylindrical baffle (4) is vertically arranged above the rubber ring (3); and the bottom end of the cylindrical baffle (4) is fixedly connected to the bottom wall of the groove (21).

2. The detachable concrete test block mold according to claim 1, characterized in that: The bottom plate (2), the rubber ring (3) and the cylindrical baffle (4) are all provided with two or more bolt holes (5), and the bolt holes (5) on the bottom plate (2), the rubber ring (3) and the cylindrical baffle (4) are aligned with each other, and fastening bolts pass through the bolt holes (5) to connect the bottom plate (2), the rubber ring (3) and the cylindrical baffle (4) into one body.

3. The detachable concrete test block mold according to claim 2, characterized in that: The groove (21) is a cylindrical groove, and the bolt hole (5) located on the bottom plate (2) is connected to the groove (21).

4. The detachable concrete test block mold according to claim 1, characterized in that: The horizontal cross-sectional dimension of the rubber ring (3) is the same as the horizontal cross-sectional dimension of the cylindrical baffle (4).

5. The detachable concrete test block mold according to claim 1, characterized in that: A mounting groove (11) is provided at the center of the vibration table clamping plate (1), and the base plate (2) is detachably mounted in the mounting groove (11).

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