A device for facilitating the demoulding of concrete test blocks

Abstract

The utility model provides a device that concrete test block demoulding is convenient, including support frame, the rear hinged test mould turnover frame of support frame, test mould turnover frame is the structure of cross section presents U shape, the test block sliding slot of support frame below is provided with, the distance between the bottom plate of test block sliding slot and ground is inclined ramp shape gradually reduces from back to front. The device has the turnover function, uses lever principle and makes test mould group turnover, alleviates the labor intensity of operator, and simultaneously, the device still uses the test block safety to demould with the sliding slot device, protects test block integrity, avoids test block to cause the scrapping because of the situation such as lack angle, crack etc.

Description

Technical Field

[0001] This utility model relates to the field of building materials testing technology, and in particular to a device for facilitating the demolding of concrete test blocks. Background Technology

[0002] In construction, building materials such as concrete and cement require testing before use to ensure their performance meets requirements. The testing process involves first making test blocks on-site, then curing them, and finally transferring them to a laboratory for testing to verify their quality. Test blocks are made using molds of varying sizes. Concrete, mortar, etc., are placed into these molds, allowed to set, and then removed and transferred to a curing chamber. Removing the test blocks from the molds is called the demolding process, which is crucial. Due to the relatively low strength of concrete and mortar, improper demolding can cause chipped corners, cracks, and other damage to the test blocks. Furthermore, the three-block set in a mold is quite heavy, placing significant demands on the labor of the testing personnel. Therefore, achieving convenient and complete demolding of the test blocks has become an urgent problem to be solved. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a device for convenient demolding of concrete test blocks. This device has a built-in flipping function, which uses the lever principle to flip the test block assembly, reducing the labor intensity of operators. At the same time, the device also uses a sliding groove device to safely remove the test block, protecting the integrity of the test block and preventing the test block from being scrapped due to missing corners, cracks, or other issues.

[0004] A device for facilitating the demolding of concrete test blocks includes a support frame, a test block flipping frame hinged to the rear of the support frame, the test block flipping frame having a U-shaped cross-section in the left-right direction, and a test block sliding groove in the front-back direction provided below the support frame, the distance between the bottom plate of the test block sliding groove and the ground decreasing in a sloping manner from back to front.

[0005] Preferably, the upper end of the mold flipping frame, between the two legs of the U-shape, is provided with a limiting rib for fixing the mold.

[0006] Preferably, the front end of the test block groove protrudes beyond the front end of the support frame.

[0007] Preferably, the bottom plate of the test block groove is provided with multiple parallel vertical partitions.

[0008] Preferably, the height of the vertical partition decreases sequentially from back to front.

[0009] Preferably, the bottom plate surface and the vertical partition surface of the test block groove are both provided with a buffer layer.

[0010] Preferably, the support frame includes a bottom crossbar running back and forth, a horizontal frame is provided above the bottom crossbar, and the trial mold turning frame is hinged to the horizontal frame.

[0011] Preferably, the bottom crossbars are two parallel bars, and the horizontal frame is installed between the two bottom crossbars.

[0012] Preferably, the front end of the bottom crossbar is provided with a sliding groove for mounting a limiting rod.

[0013] Preferably, the rear end of the bottom crossbar is provided with a mold flipping frame installation limit rod.

[0014] The beneficial effects of this utility model are as follows: 1. The support frame and mold flipping frame of this device are hinged together and have a built-in flipping function. The lever principle is used to flip the mold group, which reduces the labor intensity of the operators.

[0015] 2. This device is equipped with a test block slide that descends sequentially from back to front, allowing the test block to be safely removed. This effectively protects the integrity of the test block and prevents it from being scrapped due to missing corners, cracks, or other defects.

[0016] 3. The vertical partition divides the test block groove into multiple units, and the test block dimensions in the project are all standard. This equipment can standardize the production of multiple test blocks and the demolding of multiple test blocks. The structure is simple, convenient for application and standardized production, which is conducive to promotion.

[0017] 4. The buffer layer can effectively buffer the impact when the test block falls, protect the test block from being hit, and further avoid damage during demolding. Attached Figure Description

[0018] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the mold flipping frame before it is reversed. Figure 2 This is a schematic diagram of the overall structure of the mold flipping frame during demolding after it is reversed. Figure 3 This is a schematic diagram of the support frame structure; Figure 4 This is a schematic diagram of the mold flipping frame. Figure 5 This is a schematic diagram of the test block slide groove; Figure 6 This is a schematic diagram of the limiting insert structure; The components include: 1. Concrete test mold; 2. Limiting reinforcing bar; 3. Test mold turning frame; 3-1. External support of the rotating shaft; 3-2. Horizontal support; 3-3. Connecting support; 3-4. Handle; 3-5. Limiting plate; 4. Support frame; 4-1. Slide groove installation limit rod; 4-2. Bottom crossbar; 4-3. Front support upright; 4-4. Rear support upright; 4-5. Test mold turning frame installation limit rod; 4-6. Internal support of the rotating shaft; 4-7. Horizontal frame; 5. Test block slide groove; 5-1. Base plate; 5-2. Front connecting plate; 5-3. Vertical partition plate; 5-4. Rear connecting plate; 5-5. End plate. Detailed Implementation

[0020] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0022] In this utility model, "upper," "lower," "left," and "right" refer to... Figure 1 The coordinates in the diagram are used as a reference. In this utility model, "inner" and "outer" are defined based on the area enclosed by the two sets of concrete foundations and the front and rear limiting mechanisms. For example, the left side of the left concrete foundation or the right side of the right concrete foundation is the outer side of the device.

[0023] like Figure 1-6 As shown, this utility model discloses a device for facilitating the demolding of concrete test blocks. The device includes four main parts: a support frame 4, a test mold flipping frame 3, a test block sliding groove 5, and a limiting insert 2.

[0024] The support frame 4 includes a horizontal frame 4-7, front support uprights 4-3, rear support uprights 4-4, a bottom crossbar 4-2, a mold flipping frame limiting rod 4-5, a slide groove installation limiting rod 4-1, and an inner support 4-6 for the rotating shaft. The horizontal frame 4-7 is a rectangular frame welded from longitudinal and transverse members. The middle of the frame is divided into several units, the number of which corresponds to the number of concrete test blocks, and the span of each unit corresponds to the size of the test blocks, facilitating the passage of the test blocks. A front support upright 4-3 is installed at each of the two front corners of the horizontal frame 4-7, and a rear support upright 4-4 is installed at each of the two rear corners. These four support uprights, together with the bottom crossbar 4-2, support the entire structure, ensuring its stability. The bottom crossbar 4-2 consists of two parallel members arranged in a front-to-back direction. A mold flipping frame limiting rod 4-5 is welded above the rear end of the bottom crossbar 4-2 to support the mold flipping frame 3 and keep it horizontal. A limiting rod 4-1 is installed by welding a groove above the front end of the bottom crossbar 4-2. This groove is used to install and fix the test block groove 5. Two inner shaft supports 4-6 are symmetrically installed at the rear end of the horizontal frame 4-7 about the left and right center lines. These parts correspond to the outer shaft supports 3-1 on the test mold turning frame 3. The two parts are rotatably connected by the shaft.

[0025] It should be noted that the upper end of the front support upright 4-3 is higher than the upper end of the horizontal frame 4-7. That is, the two front support uprights 4-3 form a protrusion above the horizontal frame 4-7, which corresponds to the upper limit plate of the mold flipping frame 3, so that the mold flipping frame 3 remains horizontal after flipping.

[0026] The mold flipping frame 3 includes two horizontal supports 3-2 arranged in a left-right direction, two U-shaped connecting supports 3-3 extending downwards from the left and right ends of the horizontal supports, four limiting plates 3-5 welded to the front and rear outer sides of the four corner points of the horizontal supports 3-2, two symmetrically arranged rotating shaft outer supports 3-1 welded to the front end of the front horizontal support 3-2, and a handle 3-4 welded to the rear end of the rear horizontal support 3-2. The spacing between the two horizontal supports 3-2 is adapted to the width of the concrete mold 1, so that the upper edge of the concrete mold 1 rests on the top surface of the horizontal supports 3-2. The connecting supports 3-3 are used to connect the horizontal supports 3-2, forming a U-shaped groove structure and stabilizing the frame. The limiting plates 3-5 are arranged in pairs in both the front-back and left-right directions, and have through holes machined on them. After the limiting ribs 2 are inserted into the through holes in the front-back direction, they limit the concrete mold 1 and prevent the concrete mold 1 from falling out during flipping. The rotating shaft outer supports 3-1 are used for rotatable connection with the support frame 4.

[0027] The test block chute 5 includes a base plate 5-1, a front connecting plate 5-2, a vertical partition plate 5-3, a rear connecting plate 5-4, and an end plate 5-5. The vertical partition plate 5-3 divides the entire test block chute 5 into several units distributed to the left and right, corresponding to the number of test blocks in the concrete mold 1. A buffer layer is provided on the surface of the vertical partition plate 5-3. Alternatively, the vertical partition plate can be made directly from a material with sufficient strength and good flexibility, such as nylon or hard rubber. This design aims to maintain the shape of the test block chute 5 while preventing hard collisions with the test blocks and potential damage. The surface of the base plate 5-1 also has a buffer layer made of a flexible material, such as wool fabric, to cushion the impact of the falling test blocks and protect them. The test block chute 5 has a slope that gradually decreases from back to front, facilitating the sliding out of the test blocks. The front connecting plate 5-2 is connected to the mounting groove limiting rod 4-1 of the support frame, and the rear connecting plate 5-4 is connected to the horizontal frame 4-7 of the support frame. The end plate 5-5 is used to close the test block slide groove at the rear end, which serves to limit the test block and reinforce the slide groove. The length of the test block slide groove 5 exceeds the support frame 4, that is, the front end of the test block slide groove 5 protrudes from the front end of the support frame 4. This setting facilitates the removal of the test block.

[0028] The limiting insert 2 is a steel bar with a circle at one end.

[0029] During use, install all accessories, place a set of test molds (containing test blocks) into the U-shaped groove of the test mold flipping frame 3, and insert the limiting ribs 2 to fix the test molds. The installation direction of the limiting ribs 2 should be correct to prevent them from falling out during flipping. Hold handles 3-4 and flip the test mold flipping frame 3 and the test molds. After flipping them into place, use an air pump to blow high-pressure air into the demolding hole at the bottom of the test mold. The test blocks will fall into the test block slide groove 5 and slide out of the support frame 4 along the slope. Flip the test mold flipping frame 3 in the opposite direction, remove the limiting ribs 2, remove the empty test mold, and complete one demolding process.

[0030] If there is no air pump or the test block does not fall out after being blown up, the handle can be lifted appropriately and then lowered. Demolding is achieved by the vibration generated by the collision between the limiting plate of the mold flipping frame and the protruding part of the front support column of the support frame.

[0031] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention.

Claims

1. A device for facilitating the demolding of concrete test blocks, characterized in that, Includes a support frame (4), with a test mold turning frame (3) hinged to the rear of the support frame (4). The test mold turning frame has a U-shaped cross-section in the left-right direction. A test block slide groove (5) in the front-back direction is provided below the support frame (4). The distance between the bottom plate (5-1) of the test block slide groove and the ground decreases in a slope from back to front.

2. The device for facilitating the demolding of concrete test blocks according to claim 1, characterized in that, The upper end of the test mold flipping frame (3) is provided with a limiting rib (2) for fixing the test mold between the two legs of the U shape.

3. The device for facilitating the demolding of concrete test blocks according to claim 1, characterized in that, The front end of the test block groove (5) protrudes beyond the front end of the support frame (4).

4. The device for facilitating the demolding of concrete test blocks according to claim 1, characterized in that, The test block groove has multiple parallel vertical partitions (5-3) above its bottom plate (5-1).

5. The device for facilitating the demolding of concrete test blocks according to claim 4, characterized in that, The height of the vertical partition (5-3) decreases sequentially from back to front.

6. The device for facilitating the demolding of concrete test blocks according to claim 4, characterized in that, The bottom plate (5-1) and the vertical partition plate (5-3) of the test block groove are both provided with a buffer layer.

7. The device for facilitating the demolding of concrete test blocks according to claim 1, characterized in that, The support frame (4) includes a bottom crossbar (4-2) running back and forth, and a horizontal frame (4-7) is provided above the bottom crossbar (4-2). The trial mold turning frame (3) is hinged to the horizontal frame (4-7).

8. The device for facilitating the demolding of concrete test blocks according to claim 7, characterized in that, The bottom crossbars (4-2) are two parallel bars, and the horizontal frame (4-7) is installed between the two bottom crossbars.

9. The device for facilitating the demolding of concrete test blocks according to claim 7, characterized in that, The bottom crossbar (4-2) is provided with a sliding groove mounting limit bar (4-1) at its front end.

10. The device for facilitating the demolding of concrete test blocks according to claim 7, characterized in that, The bottom crossbar (4-2) is provided with a mold flipping frame installation limit bar (4-5) at its rear end.

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