Rapidly detachable hydraulic concrete test mold

Abstract

The utility model discloses a hydraulic concrete test mold capable of being quickly disassembled, which belongs to the technical field of hydraulic concrete test block molds and comprises a bottom plate. Baffles are arranged on the front side and the rear side of the supporting bottom plate correspondingly, and an external partition plate and an internal partition plate are arranged between the two baffles correspondingly. Screw devices for supporting and fixing the baffles are arranged on the two baffles, an external partition plate limiting groove and an internal partition plate limiting groove are formed in the top of the bottom plate, a mounting block is arranged on the inner side of the external partition plate limiting groove, and a first baffle plate limiting groove, a second baffle plate limiting groove and a third baffle plate limiting groove are formed in the side face of the bottom plate in a front-back mode; baffle outward extending structures are arranged on the tops of the front and rear baffles, and mounting holes are formed in the inner sides of the front and rear baffles. According to the concrete test block demolding device, demolding is convenient, the concrete test block demolding efficiency is improved, damage to a test block in the demolding process is reduced, mold cleaning is facilitated, the cleaning efficiency is improved, the cleaning effect is improved, and the utilization rate of the mold is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic concrete test block molds, and particularly relates to a quickly detachable hydraulic concrete test mold. Background Technique

[0002] Hydraulic engineering projects play an important role in the people's livelihood construction of our country, and have a great promoting effect on the improvement of the national living standard and economic development level. When carrying out the construction of hydraulic engineering projects, the control of its construction quality is particularly important. According to the relevant engineering specifications, design requirements and supervision requirements of our country, it is necessary to take samples for inspection, make concrete test blocks, and conduct performance tests on the test blocks during the concrete pouring at the construction site of hydraulic engineering projects. For example, indicators such as compressive strength, splitting tensile strength, impermeability grade, and elastic modulus can be used to judge whether the performance indicators of the concrete meet the actual requirements and whether the construction quality meets the standards. Therefore, the production of concrete standard test blocks is very important.

[0003] For the production of concrete standard test blocks, specific molds are required. First, release agent is evenly applied inside the mold, the concrete mixture is filled into the mold, and then it is placed on a vibrating table for vibration. After the test block is formed and has a certain strength, demolding treatment is carried out. Currently, the commonly used molds in engineering are plastic molds, which are light in weight, not easy to deform, have high dimensional accuracy, low production cost, and high reuse rate. Wooden molds have low strength, large dimensional errors, are not easy to clean, difficult to demold, and have a short life cycle. Steel molds are heavy, laborious to install and transport, easy to rust, troublesome to maintain after use, and have high costs. Plastic molds usually use an air pump for demolding, and the test block is pushed out of the mold through gas pressure. Therefore, an air inlet is reserved at the bottom of the mold, which needs to be blocked during vibration and opened during demolding. Due to factors such as improper blocking and long vibration time, the air inlet is easily filled with concrete mixture or has gaps. After the mixture hardens, the air port will be blocked, and the air pump cannot be used for demolding. Only by repeatedly knocking and hammering manually can the test block be taken out, resulting in difficult demolding, easy chipping of the test block, and in severe cases, microcracks may occur inside the test block, resulting in large errors in subsequent test results and easy damage to the mold. The gaps generated at the air inlet will cause water to flow out from the bottom, affecting the cement hydration reaction. And plastic molds are usually of an integral structure. After the test block is demolded, it is more troublesome to clean the hardened concrete remaining at the bottom and the bottom corners around the mold, greatly increasing the time cost.

[0004] For example, the utility model with the application number 202322374229.9 discloses a compression mold for concrete test blocks, belonging to the technical field of concrete testing. It includes a support base, a third baffle, and a partition. The support base is formed by enclosing a semi-surrounding support structure with a bottom plate, a first baffle, and a second baffle. The third baffle is provided with a U-shaped first groove, and a U-shaped first strip protrusion is arranged on the support base on the side opposite to the second baffle. The first groove and the first strip protrusion are in concave-convex fit. The partition is arranged between the second baffle and the third baffle. The partition is provided with a U-shaped second groove, and the support base is provided with an L-shaped second strip protrusion. The third baffle is vertically arranged with a third strip protrusion corresponding to the second strip protrusion. The second groove and the second strip protrusion and the third strip protrusion are spliced to form a U-shaped structure in concave-convex fit. This compression mold for concrete test blocks can produce multiple concrete test blocks at the same time. By quickly disassembling the third baffle and the partition, it is beneficial for the rapid demolding of the concrete test blocks. In this utility model, the third baffle is not easy to take out, which is inconvenient for demolding. Hardened concrete mixture residues are likely to be generated in the dead corners inside the mold, and it is relatively difficult to clean up. Moreover, this device is not easy to grasp. When the three slots of the mold are filled with concrete mixture, it is inconvenient to move. The size of the guard plate is too long, occupying space. And when vibrating, the excess cement slurry is likely to flow from the empty positions between the guard plates into the guard plate slots, and it is not easy to clean up after hardening, affecting the return of the guard plates.

[0005] For example, the utility model with the application number 201721460580.8 discloses a detachable triple mold for concrete specimens. The triple mold is a cuboid structure, which includes a bottom plate, end plates fixed at both ends of the bottom plate, side plates movably connected to the front and rear sides of the bottom plate through rotating shafts, and baffles arranged in the grooves of the bottom plate and the side plates. At both ends of the top of the end plate, locking buckles are respectively arranged. On both the front and rear sides of the bottom plate, bushing sleeves are respectively arranged. At both ends of the top of the side plate, locking buckles corresponding to the end plate are also respectively arranged, and at both ends of the bottom of the side plate, rotating shafts corresponding to the bottom plate are respectively arranged. The triple mold of this utility model is divided by 4 baffles, and the concrete test blocks do not contact the fixed end plates at both ends, which is convenient for demolding and ensures the overall strength and stability. This mold is a steel mold. During vibration, there will be wear between adjacent components, and it is easy to rust when contacting with the cement slurry. Its own weight is relatively large, making it difficult to carry. And the redundant parts on both sides cannot be utilized, increasing the weight of the mold and causing material waste. The baffle is only clamped and fixed by the side plate, and it is easy to have vertical slippage during the vibration process, resulting in the concrete mixture entering the groove. The side plate has a large weight, reducing the service life of the bushing sleeve. Content of the Utility Model

[0006] (I) Purpose of the Utility Model

[0007] To solve the technical problems existing in the background art, the present utility model proposes a quickly detachable hydraulic concrete test mold, which solves the problems that the demolding operation of the existing hydraulic concrete test block mold is cumbersome, not easy to demold, and hardened concrete mixture residues are likely to form in the dead corners at the bottom of the mold, making it difficult to clean. It has the advantages of being quickly detachable, facilitating the cleaning of the mold, having a simple demolding operation, not damaging the concrete test block, reducing subsequent test errors, and being easy to assemble and having good sealing performance.

[0008] (II) Technical Solution

[0009] The present utility model provides a quickly detachable hydraulic concrete test mold, including a bottom plate;

[0010] Baffles are arranged on both the front and rear sides of the supporting bottom plate, and an external partition and an internal partition are respectively arranged between the two baffles;

[0011] Screw devices for supporting and fixing the baffles are arranged on the two baffles.

[0012] Preferably, an external partition limiting groove and an internal partition limiting groove are arranged on the top of the bottom plate, an installation block is arranged inside the external partition limiting groove, and front and rear first baffle limiting grooves, second baffle limiting grooves and third baffle limiting grooves are respectively arranged on the side surface of the bottom plate.

[0013] Preferably, baffle extension structures are arranged on the tops of the front and rear baffles, installation holes are arranged on the inner sides of the front and rear baffles, first partition limiting grooves, second partition limiting grooves, third partition limiting grooves and fourth partition limiting grooves are respectively arranged on the inner sides of the front and rear baffles, and first limit blocks, second limit blocks and third limit blocks are respectively arranged on the inner sides of the bottoms of the front and rear baffles.

[0014] Preferably, a partition extension structure is arranged on the top of the external partition, a first docking block and a second docking block are respectively arranged on both sides of the external partition, and a docking groove is arranged at the bottom of the external partition.

[0015] Preferably, a first insertion block and a second insertion block are respectively arranged on both sides of the internal partition, the number of both the first insertion block and the second insertion block is two, and the two first insertion blocks and the second insertion blocks are symmetrically distributed on the internal partition.

[0016] Preferably, the screw device is composed of a nut, a gasket, a screw, a rubber pad and a switch clamp. The screw is arranged on the baffle, the nut and the gasket are arranged at one end of the screw, the rubber pad is arranged at the other end of the screw, the switch clamp is arranged at the other end of the screw, and the specification of the screw is adapted to the specification of the installation hole on the baffle.

[0017] Compared with the prior art, the above technical solution of the present utility model has the following beneficial technical effects:

[0018] 1. For this quickly detachable hydraulic concrete test mold, it is connected and fixed through a screw device, and external partitions and internal partitions are provided between the top of the support bottom plate and the baffle. When demolding, only need to open the screw device, first remove the front and rear baffles, then take out the partitions, and gently vibrate to perfectly separate the concrete test block from the mold. This is not only beneficial for demolding but also for installation before pouring.

[0019] 2. For this quickly detachable hydraulic concrete test mold, by setting the whole into multiple detachable structures, it is convenient to clean the mold after the test block is demolded, avoiding the difficult situation of cleaning the hardened concrete mixture remaining in dead corners.

[0020] 3. For this quickly detachable hydraulic concrete test mold, the front and rear baffles and the external partitions are all provided with extended structures, which is beneficial for better troweling operation during vibration, preventing excess concrete mixture from sticking to the outer wall of the mold, which is not easy to remove after hardening, and is also beneficial for grasping, improving the transfer efficiency.

[0021] 4. For this quickly detachable hydraulic concrete test mold, the support bottom plate is fixedly installed with the front and rear baffles, the internal and external partitions, and between the front and rear baffles and the internal and external partitions by using limit holes and corresponding limit blocks. The structure is compact, with high stability and good sealing performance, and there will be no leakage of concrete slurry during the vibration process.

[0022] 5. For this quickly detachable hydraulic concrete test mold, by using screws to control and fix the baffle, the whole mold is designed for quick disassembly, with high disassembly efficiency and labor-saving. And because there are gaskets at both ends of the screw, it can prevent stress concentration and increase the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0024] Figure 2 is a disassembly schematic diagram of the overall structure of the present utility model;

[0025] Figure 3 is a three-dimensional view of the bottom plate structure of the present utility model;

[0026] Figure 4 is a schematic diagram of the baffle structure of the present utility model;

[0027] Figure 5 is a schematic diagram of the external partition and internal partition structures of the present utility model;

[0028] Figure 6 is an assembled schematic diagram of the screw device structure of the present utility model;

[0029] Figure 7 This is a schematic diagram for disassembling the screw device structure of the present utility model.

[0030] Reference numerals: 1, base plate; 101, external partition limiting groove; 102, internal partition limiting groove, 103, mounting block; 104, first baffle limiting groove; 105, second baffle limiting groove; 106, third baffle limiting groove; 2, baffle; 201, baffle extension structure; 202, first partition limiting groove; 203, second partition limiting groove; 204, mounting hole; 205, third partition limiting groove; 206, fourth partition limiting groove; 207, first limiting block; 208, second limiting block; 209, third limiting block; 3, external partition; 301, partition extension structure; 302, first docking block; 303, second docking block; 304, docking groove; 4, internal partition; 401, first plug-in block; 402, second plug-in block; 5, screw device; 501, nut; 502, gasket; 503, screw; 504, rubber pad; 505, switch clip. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following descriptions, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0032] In the description of the utility model, it should be noted that the orientation or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0033] In the description of the utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "equipped with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, such as welding, riveting, bonding, etc., or a detachable connection, such as threaded connection, key connection, pin connection, etc., or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] As Figure 1-7 shown, a quick-detachable hydraulic concrete test mold proposed by the present utility model includes a bottom plate 1;

[0035] Baffles 2 are spliced on both the front and back sides of the supporting bottom plate 1, and two external partitions 3 and two internal partitions 4 are respectively spliced between the two baffles 2;

[0036] Screw devices 5 for supporting and fixing the baffles 2 are arranged on the two baffles 2.

[0037] It should be noted that the two baffles 2 are symmetrically distributed on the bottom plate 1, and the entire mold is made of proportioned ABS plastic, and the screw device 5 is made of stainless steel, making the entire screw device 5 have the characteristics of high strength and corrosion resistance.

[0038] In an optional embodiment, an external partition limiting groove 101 and an internal partition limiting groove 102 are arranged on the top of the bottom plate 1, a limiting block 103 is arranged on the inner side of the external partition limiting groove 101, and front and rear first baffle limiting grooves 104, second baffle limiting grooves 105 and third baffle limiting grooves 106 are respectively arranged on the side surface of the bottom plate 1.

[0039] It should be noted that using the partition limiting groove and the corresponding limiting block 103 to fix the external partition 3, internal partition 4 and baffle 2 not only facilitates the assembly of the mold, but also is different from the simple clamping and fitting fixing method of the traditional split structure, and it is not easy to produce dislocation slip and slurry leakage during use. The sealing stability of the former scheme is better than that of the latter.

[0040] In an optional embodiment, baffle extension structures 201 are arranged on the tops of the front and rear baffles 2, mounting holes 204 are arranged on the inner sides of the front and rear baffles 2, first partition limiting grooves 202, second partition limiting grooves 203, third partition limiting grooves 205 and fourth partition limiting grooves 206 are respectively arranged on the inner sides of the front and rear baffles 2, and first limiting blocks 207, second limiting blocks 208 and third limiting blocks 209 are respectively arranged on the inner sides of the bottoms of the front and rear baffles 2.

[0041] It should be noted that the number of the first partition limiting grooves 202, the second partition limiting grooves 203, the third partition limiting grooves 205, and the fourth partition limiting grooves 206 is two. The two first partition limiting grooves 202, second partition limiting grooves 203, third partition limiting grooves 205, and fourth partition limiting grooves 206 are symmetrically distributed on the baffle 2. The first limiting block 207, the second limiting block 208, and the third limiting block 209 are respectively adapted to the first baffle limiting groove 104, the second baffle limiting groove 105, and the third baffle limiting groove 106, which can prevent the front and rear baffles 2 from horizontally sliding in the left and right directions during use.

[0042] In an alternative embodiment, a partition extending structure 301 is provided at the top of the external partition 3, which can prevent excess cement slurry from sticking to the outer wall of the external partition 3 during vibration, and it is not easy to clean after hardening. A first docking block 302 and a second docking block 303 are respectively arranged on both sides of the external partition 3, which can prevent the external partition 3 from vertically sliding during use. A docking groove 304 is arranged at the bottom of the external partition 3, and the docking groove 304 corresponds to the limiting block installation block 103 provided on the bottom plate 1, which can further prevent the external partition 3 from horizontally sliding during use.

[0043] In an alternative embodiment, a first insertion block 401 and a second insertion block 402 are respectively arranged on both sides of the internal partition 4, which can prevent the internal partition 4 from vertically sliding during use, resulting in the failure of concrete pouring. The number of the first insertion block 401 and the second insertion block 402 is two, and the two first insertion blocks 401 and second insertion blocks 402 are symmetrically distributed on the internal partition 4.

[0044] In an alternative embodiment, the screw device 5 is composed of a nut 501, a gasket 502, a screw 503, a rubber pad 504, and a switch clamp 505. The screw 503 is arranged on the baffle 2. The nut 501 and the gasket 502 are arranged at one end of the screw 503, which can prevent stress concentration, reduce the wear of the thread of the screw 503, and reduce the generation of fatigue cracks at the installation hole 204. The rubber pad 504 is arranged at the other end of the screw 503, and the switch clamp 505 is arranged at the other end of the screw 503. The rubber pad 504 at the other end of the screw 503 can reduce the wear of the installation hole 204 and reduce the resistance to opening and closing the switch clamp 505. The switch clamp 505 adopts a long force arm structure to achieve labor saving. The specification of the screw 503 is adapted to the specification of the installation hole 204 on the baffle 2.

[0045] The working principle of the above embodiments is as follows:

[0046] First, place the bottom plate 1 horizontally. The external partition 3 corresponds to the external partition limiting groove 101 of the bottom plate 1. The docking groove 304 of the external partition 3 matches the size of the mounting block 103 in the external partition limiting groove 101 on the external partition 3. The internal partition 4 corresponds to the internal partition limiting groove 102 on the support bottom plate 1. Then install the front and rear baffles 2. The first partition limiting groove 202, the second partition limiting groove 203 in the middle of the inner sides of the front and rear baffles 2 and the third partition limiting groove 205, the fourth partition limiting groove 206 correspond to the first docking block 302, the second docking block 303 on the external partition 3 and the first plug-in block 401, the second plug-in block 402 on the internal partition 4. The first limiting block 207, the second limiting block 208, the third limiting block 209 are provided on the inner sides of the bottoms of the front and rear baffles 2 and respectively correspond to the first baffle limiting groove 104, the second baffle limiting groove 105, the third baffle limiting groove 106 provided on the side of the bottom plate 1. Finally, pass the rubber pad 504 through the screw 503 and install it at the other end of the screw 503. After passing the screw 503 through the mounting holes 204 on both sides of the front and rear baffles 2, successively install the gasket 502 and the nut 501. Open the switch clip 505, tighten the nut 501, and tighten the switch clip 505. Thus, the installation of the mold is completed;

[0047] When carrying out the pouring work of hydraulic concrete specimens in the laboratory, the device can be first carried to the pouring site and placed properly. After evenly applying the mold release agent on the inner wall of the mold, pour the stirred concrete mixture into the mold, and then successively carry out steps such as vibrating, leveling, covering with a film, and moving to the curing room; when curing in the curing room until 70% of the designed strength is reached, demolding can be carried out. When demolding, first open the switch clip 505, loosen the nut 501, and successively remove the nut 501 and the gasket 502. At this time, the entire screw device 5 can be taken out from the mounting holes 204 on both sides of the front and rear baffles 2. Then, remove the front and rear baffles 2 horizontally in the front and rear directions, and take out the external partition 3 and the internal partition 4 vertically upward. Gently vibrating can separate the concrete test block from the bottom plate 1. Thus, the demolding of the test block is completed. After demolding, use a scraper to scrape off or wipe the impurities remaining on the inner walls of the bottom plate 1, the front and rear baffles 2, and the internal and external partitions 3 and 4 with a wet cloth, and then rinse with water. Thus, the cleaning of the mold is completed. Then repeat the operation of installing the mold to prepare for the next pouring work of hydraulic concrete specimens in the laboratory.

[0048] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-detachable hydraulic concrete test mold, characterized in that: comprising a bottom plate (1); Baffles (2) are provided on both the front and rear sides of the bottom plate (1), and an external baffle (3) and an internal baffle (4) are provided between the two baffles (2); The two baffles (2) are provided with screw devices (5) for supporting and fixing the baffles (2).

2. The quickly detachable hydraulic concrete test mold according to claim 1, characterized in that: The top of the bottom plate (1) is provided with an external baffle limiting groove (101) and an internal baffle limiting groove (102), a limiting block (103) is provided inside the external baffle limiting groove (101), and the side surfaces of the bottom plate (1) are respectively provided with front and rear first baffle limiting grooves (104), a second baffle limiting groove (105), and a third baffle limiting groove (106).

3. The quick-detachable hydraulic concrete test mold according to claim 1, characterized in that: The tops of the baffles (2) on the front and rear sides are provided with baffle extension structures (201), the inner sides of the baffles (2) on the front and rear sides are provided with mounting holes (204), the inner sides of the baffles (2) on the front and rear sides are provided with first baffle limiting grooves (202), second baffle limiting grooves (203), third baffle limiting grooves (205), and fourth baffle limiting grooves (206), respectively, and the inner sides of the bottoms of the baffles (2) on the front and rear sides are provided with first limiting blocks (207), second limiting blocks (208), and third limiting blocks (209), respectively.

4. The quickly detachable hydraulic concrete test mold according to claim 1, characterized in that: A partition extension structure (301) is provided at the top of the external partition (3), a first docking block (302) and a second docking block (303) are provided on both sides of the external partition (3), and a docking groove (304) is provided at the bottom of the external partition (3).

5. The quickly detachable hydraulic concrete test mold according to claim 1, characterized in that: A first plug-in block (401) and a second plug-in block (402) are respectively arranged on both sides of the internal partition plate (4); the number of the first plug-in block (401) and the number of the second plug-in block (402) are both two, and the two first plug-in blocks (401) and the two second plug-in blocks (402) are symmetrically distributed on the internal partition plate (4).

6. The quickly detachable hydraulic concrete test mold according to claim 1, characterized in that: The screw rod device (5) is composed of a nut (501), a gasket (502), a screw rod (503), a rubber pad (504) and a switch clamp (505); the screw rod (503) is arranged on the baffle plate (2); the nut (501) and the gasket (502) are arranged at one end of the screw rod (503); the rubber pad (504) is arranged at the other end of the screw rod (503); and the switch clamp (505) is arranged at the other end of the screw rod (503); the specifications of the screw rod (503) are compatible with the specifications of the mounting hole (204) on the baffle plate (2).

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