Concrete test block demolding device

Abstract

The utility model discloses a concrete test block demoulding device which comprises a test mould frame, the test mould frame comprises an upper frame body, a lower frame body and a locking structure, the upper frame body and the lower frame body are U-shaped frame bodies, convex blocks are arranged at the bottoms of the side walls of the two sides of the upper frame body, grooves corresponding to the convex blocks are formed in the inner side wall of the lower frame body, and the locking structure is connected with the upper frame body and the lower frame body. The upper frame body and the lower frame body are matched to form a containing cavity used for containing concrete slurry, and the upper frame body and the lower frame body are locked and fixed through the locking structure. Compared with the prior art, the mold has the beneficial effects that through the combination of the upper frame body and the lower frame body, during demolding, only the upper frame body needs to be pushed out along the groove, and then the test block is pushed out of the upper frame body, so that the operation is simple, the test block and the mold are prevented from being damaged in the demolding process, and the integrity of the test block is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete test block preparation device, and in particular to a concrete test block demolding device. Background Technology

[0002] In order to ensure that the strength and other properties of concrete structures meet the relevant safety standards, concrete test blocks are usually made on construction sites for monitoring. This requires the use of concrete molds, which generally have a specific regular shape. After the concrete is poured into the mold and cooled, it is poured out of the mold. However, because the test block is tightly bonded to the mold, the separation process is generally quite difficult.

[0003] Existing concrete demolding technologies generally include the following methods: 1. Using an air pump to blow out the concrete block through a small hole pre-drilled at the bottom of the mold, thus separating the test block from the mold. This method has the disadvantage of high equipment costs. 2. On-site workers demold the concrete test block by hammering it. This method is inefficient, time-consuming, labor-intensive, and can easily damage the test block. 3. Using a simple demolding device, the concrete test block is separated from the mold by impact with its own weight. However, the separated concrete test block will fall directly to the ground or other surfaces, and the concrete test block may break, crack, or lack edges after falling and impacting. Utility Model Content

[0004] In view of the above-mentioned prior art, the present invention provides a concrete test block demolding device, which mainly solves the technical problems existing in the background art.

[0005] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows:

[0006] A concrete test block demolding device includes a test mold frame, which comprises an upper frame, a lower frame, and a locking structure. The upper frame and the lower frame are U-shaped frames. The bottom of both side walls of the upper frame are provided with protrusions, and the inner side wall of the lower frame is provided with grooves corresponding to the protrusions. The upper frame and the lower frame cooperate to form a cavity for holding concrete slurry. The locking structure locks and fixes the upper frame and the lower frame.

[0007] Preferably, a positioning plate is fixedly installed at the bottom of the lower frame at the groove, and the upper frame is provided with a slot corresponding to the positioning plate.

[0008] Preferably, the outer side wall of the upper frame is provided with a handle.

[0009] Preferably, both the upper frame and the lower frame are made of plastic.

[0010] Preferably, the locking structure is a locking screw, the side wall of the upper frame is provided with a threaded hole facing the protrusion, the side wall of the lower frame is provided with a first through hole corresponding to the threaded hole, and the locking screw is threadedly connected to the upper frame.

[0011] Preferably, it also includes an ejection mechanism, which includes a bracket, a telescopic cylinder, and a pusher plate. The bracket is provided with a second through hole corresponding to the threaded hole. The bracket is threadedly connected to the upper frame through the locking screw. The telescopic cylinder is fixedly installed on the side wall of the bracket facing the interior of the upper frame. The telescopic end of the telescopic cylinder is fixedly connected to the pusher plate. The pusher plate is perpendicular to the bottom surface of the upper frame.

[0012] Preferably, a support rod is fixedly installed at the bottom of the bracket, and a suction cup is provided at the bottom of the support rod.

[0013] The beneficial effects of this utility model are as follows: by combining the upper frame and the lower frame, when demolding, it is only necessary to push the upper frame out along the groove and then push the test block out from the upper frame. The operation is simple and avoids damage to the test block and the mold during the demolding process, thus ensuring the integrity of the test block. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a concrete test block demolding device according to an embodiment of this application;

[0015] Figure 2 This is a schematic diagram of the lower frame structure in an embodiment of this application;

[0016] Figure 3 This is a schematic diagram of the upper frame structure in an embodiment of this application;

[0017] Figure 4 This is a schematic diagram of the ejection mechanism in the embodiments of this application;

[0018] Figure 5 This is a schematic diagram of the ejection mechanism and the upper frame in the embodiments of this application;

[0019] Explanation of icon numbers:

[0020] 1. Upper frame; 2. Lower frame; 3. Protrusion; 4. Groove; 5. Positioning plate; 6. Slot; 7. Handle; 8. Locking screw; 9. Threaded hole; 10. First through hole; 11. Bracket; 12. Telescopic cylinder; 13. Push plate; 14. Second through hole; 15. Support rod; 16. Suction cup. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. 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 utility model belongs. The terminology used in this specification of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0022] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] Example 1

[0024] Please refer to the attached document. Figures 1-3This application provides a concrete test block demolding device, including a test mold frame. The test mold frame includes an upper frame 1, a lower frame 2, and a locking structure. The upper frame 1 and the lower frame 2 are U-shaped frames. The bottom of both side walls of the upper frame 1 are provided with protrusions 3. The inner side wall of the lower frame 2 is provided with grooves 4 corresponding to the protrusions 3. The upper frame 1 and the lower frame 2 cooperate to form a cavity for holding concrete slurry. The locking structure locks and fixes the upper frame 1 and the lower frame 2. Before pouring the test block, first align the protrusions 3 on both sides of the upper frame 1 with the grooves 4 on the inner wall of the lower frame 2. Then, push the upper frame 1 into the lower frame 2 until the upper frame 1 and the lower frame 2 are combined to form a cavity for holding the concrete slurry. Finally, lock the upper frame 1 and the lower frame 2 with a locking structure to prevent the upper frame 1 and the lower frame 2 from separating due to impact during pouring, thus improving the practicality of the device. Preferably, a sealing strip is installed at the gap between the contact surfaces of the upper frame 1 and the lower frame 2 to block the concrete slurry and ensure the complete molding of the concrete test block. This design improves the accuracy of test block testing. Furthermore, the inner walls of the cavity formed by the upper frame 1 and lower frame 2 are coated with a concrete release agent to prevent the inner walls of the frame from sticking to the concrete surface after pouring, thus avoiding difficulties in demolding or affecting the smoothness of the concrete surface. Its main function is to form a film between the inner walls of the frame and the concrete surface, separating them. After the concrete test block is formed, simply push the upper frame 1 out along the groove 4, and then push the test block out of the upper frame 1. The operation is simple and avoids damage to the test block and mold during demolding, ensuring the integrity of the test block.

[0025] Specifically, a positioning plate 5 is fixedly installed at the bottom of the lower frame 2 at the groove 4, and the upper frame 1 is provided with a slot 6 corresponding to the positioning plate 5. The positioning plate 5 is set at the edge of the groove 4, and the slot 6 is set at the bottom of the upper frame 1. When the upper frame 1 and the lower frame 2 are combined, the positioning plate 5 and the slot 6 are aligned for positioning, which improves the efficiency of the demolding device assembly.

[0026] Specifically, the outer side wall of the upper frame 1 is provided with a handle 7. The handle 7 facilitates the combination and separation of the upper frame 1 and the lower frame 2, improving the practicality of the device. Preferably, handles 7 are provided on both sides of the outer side wall of the upper frame 1 to facilitate the handling of the demolding device.

[0027] Specifically, both the upper frame 1 and the lower frame 2 are made of plastic. Because both the upper frame 1 and the lower frame 2 are made of plastic, the overall device is lightweight, easy to transport and store, and also low in cost and reusable, thus reducing engineering costs.

[0028] Specifically, the locking structure is a locking screw 8. The upper frame 1 has a threaded hole 9 on its side wall facing the protrusion 3, and the lower frame 2 has a first through hole 10 corresponding to the threaded hole 9 on its side wall. The locking screw 8 is threadedly connected to the upper frame 1. By threading the locking screw 8 through the first through hole 10 and connecting it to the threaded hole 9, the upper frame 1 and lower frame 2 are fixed together. After the concrete test block is formed, simply unscrewing the locking screw 8 allows the upper frame 1 to be pushed off the lower frame 2. The operation is simple and convenient.

[0029] Example 2

[0030] Please refer to the appendix. Figures 3-5 The difference between this embodiment and Embodiment 1 is that it also includes an ejection mechanism. This ejection mechanism includes a bracket 11, a telescopic cylinder 12, and a pushing plate 13. The bracket 11 has a second through hole 14 corresponding to the threaded hole 9. The bracket 11 is threadedly connected to the upper frame 1 via a locking screw 8. The telescopic cylinder 12 is fixedly installed on the side wall of the bracket 11 facing the inside of the upper frame 1. The telescopic end of the telescopic cylinder 12 is fixedly connected to the pushing plate 13, which is perpendicular to the bottom surface of the upper frame 1. After the upper frame 1 is completely pushed out of the lower frame 2, the bracket 11 is fixed to the side of the upper frame 1 by the locking screw 8 passing through the second through hole 14. After fixing the bracket 11, the telescopic cylinder 12 on the bracket 11 is activated, causing the pushing plate 13 at the telescopic end to contact the concrete test block on the upper frame 1 and gradually push the concrete test block away from the upper frame 1, reducing the labor intensity of workers and improving work efficiency.

[0031] Specifically, a support rod 15 is fixedly installed at the bottom of the bracket 11, and a suction cup 16 is provided at the bottom of the support rod 15. By setting the support rod 15 and the suction cup 16 at the bottom of the bracket 11, the bracket 11 is supported, and the stability of the bracket 11 is improved. At the same time, the suction cup 16 adsorbs onto the plane, improving the stability of the ejection device and providing a support point for ejecting the concrete test block.

[0032] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model should be determined by the protection scope of the stated claims.

Claims

1. A concrete test block demolding device, characterized in that, The system includes a test mold frame, comprising an upper frame, a lower frame, and a locking structure. The upper and lower frames are U-shaped. The bottom of both side walls of the upper frame have protrusions, and the inner side wall of the lower frame has grooves corresponding to the protrusions. The upper and lower frames cooperate to form a cavity for holding concrete slurry. The locking structure locks and fixes the upper and lower frames. The system also includes an ejection mechanism, comprising a bracket, a telescopic cylinder, and a pushing plate. The side wall of the upper frame facing the protrusion has a threaded hole, and the side wall of the lower frame has a first through hole corresponding to the threaded hole. The bracket has a second through hole corresponding to the threaded hole. The bracket is threadedly connected to the upper frame by a locking screw. The telescopic cylinder is fixedly installed on the side wall of the bracket facing the inner side of the upper frame. The telescopic end of the telescopic cylinder is fixedly connected to the pushing plate, which is perpendicular to the bottom surface of the upper frame.

2. The concrete test block demolding device according to claim 1, characterized in that, A positioning plate is fixedly installed at the bottom of the lower frame at the groove, and a slot corresponding to the positioning plate is provided at the bottom of the upper frame.

3. The concrete test block demolding device according to claim 1, characterized in that, The outer wall of the upper frame is provided with a handle.

4. A concrete test block demolding device according to claim 1, characterized in that, Both the upper frame and the lower frame are made of plastic.

5. A concrete test block demolding device according to claim 1, characterized in that, The locking structure is a locking screw, which is threadedly connected to the upper frame.

6. A concrete test block demolding device according to claim 1, characterized in that, A support rod is fixedly installed at the bottom of the bracket, and a suction cup is provided at the bottom of the support rod.

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