A mold for preparing a concrete test piece

Abstract

The utility model discloses a mould for preparing concrete test piece belongs to concrete test piece preparation technical field, can solve the existing mould inconvenient dismounting, and the problem that splashing of concrete slurry is caused easily when using is easy to loosen. The mould includes: bottom plate has two opposite first side and two opposite second side, and first side is adjacent with second side, two side plates, and the bottom end is respectively connected with two first side rotation, and two side plates can be in the plane perpendicular to the bottom plate and tilt rotation, two cross plates, and the bottom end is respectively with two second side and abuts, and every cross plate all abuts with two side plates, two connecting pieces are located two cross plates far away from each other's two sides respectively, and connecting piece is worn in two side plates, is used for limiting two side plates, and the splash -proof cover is covered in the top of the enclosed area formed by two side plates and two cross plates. The utility model is used for preparing concrete test piece.

Description

Technical Field

[0001] This utility model relates to a mold for preparing concrete specimens, belonging to the field of concrete specimen preparation technology. Background Technology

[0002] With the continuous maturation of concrete construction technology, new concrete materials such as cemented sand and gravel are constantly being developed. In order to verify the relevant performance of these concrete materials, it is necessary to use molds to prepare concrete materials into specimens and conduct relevant performance tests.

[0003] Existing molds are primarily modular structures, with components secured by screws and nuts. Furthermore, they are typically open-top designs. In practical use, existing molds often exhibit the following problems: (1) Irregular vibration is required during the specimen preparation process. The screws and nuts used for fixing on the existing mold are prone to loosening during vibration, causing the mold to deform, resulting in concrete overflow or deformation, leading to specimen preparation failure.

[0004] (2) The existing mold is a modular structure, and the number of screws, nuts and other accessories required to connect the various parts is large, which makes the disassembly and installation of the mold more complicated. At the same time, due to the large number of accessories, they are difficult to manage and easy to lose. The loss of any accessory will render the mold unusable.

[0005] (3) The existing mold is an open structure. When the mold is vibrated or the concrete is vibrated, the concrete slurry in the mold is easy to splash out, which will cause the test results to deviate and also cause pollution to the test environment.

[0006] (4) Before the specimen is prepared, oil needs to be brushed on the inner surface of the mold to facilitate subsequent demolding. However, the existing mold needs to be brushed with oil after assembly, which can easily lead to problems such as brushing dead corners and uneven brushing, causing the specimen to stick to the mold during subsequent demolding and affecting the quality of specimen preparation. Summary of the Invention

[0007] This invention provides a mold for preparing concrete specimens, which solves the problems of existing molds being inconvenient to assemble and disassemble, prone to loosening during use, and easily causing concrete slurry to splash.

[0008] This utility model provides a mold for preparing concrete specimens, the mold comprising: The base plate has two opposing first sides and two opposing second sides, wherein the first sides are adjacent to the second sides; Two side plates, the bottom ends of which are rotatably connected to two first side edges respectively, and the two side plates can tilt and rotate in a plane perpendicular to the bottom plate; Two horizontal boards, the bottom ends of which abut against the two second side edges respectively, and each horizontal board abuts against the two side boards; Two connectors are located on opposite sides of the two horizontal plates, respectively; the connectors pass through the two side plates and are used to limit the movement of the two side plates; A splash guard is placed on top of the enclosed area formed by the two side panels and the two cross panels.

[0009] Optionally, the connector includes: A connecting shaft has a threaded section at one end and a smooth section at the other end; the smooth section and the threaded section are respectively inserted through two side plates; A limiting ring is fixedly sleeved on the smooth rod section and located on the side of the side plate through which the smooth rod section passes, away from the other side plate; the smooth rod section is rotated to drive the threaded section to be threadedly connected to the side plate through which it passes, and to make the limiting ring abut against the side plate through which the smooth rod section passes.

[0010] Optionally, the side plate through which the smooth rod segment passes has a through hole, and the smooth rod segment slides through the through hole; the side plate through which the threaded segment passes has a threaded hole, and the threaded segment is threadedly connected to the threaded hole.

[0011] Optionally, the connector further includes: A handle is attached to the end of the smooth rod section away from the threaded section, for driving the connecting shaft to rotate about its axis.

[0012] Optionally, the two side plates have limiting grooves at positions corresponding to the horizontal plate, and the horizontal plate abuts against the groove walls of the two limiting grooves.

[0013] Optionally, the mold further includes: Multiple hinges are provided on the bottom end of the side plate and the corresponding first side edge, for rotating connection between the bottom end of the side plate and the corresponding first side edge.

[0014] Optionally, the splash guard is slidably mounted on the top of the two side plates.

[0015] Optionally, the top edges of the two side plates that are far apart from each other are provided with sliding grooves, which are parallel to the bottom plate; the two sides of the splash cover are slidably connected in the two sliding grooves.

[0016] Optionally, there is a gap between the splash guard and the top of the two cross plates.

[0017] Optionally, the base plate, the side plate, the cross plate, the connector, and the splash guard are all made of hard, rust-resistant materials.

[0018] The beneficial effects that this utility model can produce include: This invention utilizes connectors to simultaneously link two opposing side plates, effectively limiting the movement of both side plates and two horizontal plates. This prevents the mold components from loosening due to vibration during use. The connection between the splash guard and the two side plates further limits their movement, enhancing mold stability, preventing deformation, and ensuring the quality of the prepared specimens. Because this invention uses only two connectors to fix and limit the various parts of the mold, compared to existing technologies that use numerous screws and nuts, it significantly reduces the number of accessories needed for mold fixation. This not only facilitates accessory management and reduces the probability of loss but also improves the convenience and efficiency of mold assembly and disassembly. The hinges connecting the side plates and the base plate reduce the number of disassembly structures within the mold, further enhancing the ease of assembly and disassembly. Simultaneously, the rotatable connection between the side plates and the base plate allows for adjustment of the brushing angle during oiling, effectively avoiding problems such as brushing dead spots and uneven application, thus facilitating smooth demolding and ensuring the quality of the prepared specimens. In addition, by setting up a splash guard, this utility model prevents concrete slurry from splashing outwards during vibration and compaction, ensuring the accuracy of specimen preparation and avoiding environmental pollution caused by slurry splashing.

[0019] This invention enhances the stability of the mold through the cooperation of the connector, two side plates, two horizontal plates and splash guard, avoids the deformation of the mold during use and thus avoids affecting the quality of the test specimen preparation, and simplifies the mold assembly and disassembly process, thereby improving the ease of use of the mold. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of a mold for preparing concrete specimens provided in an embodiment of this utility model; Figure 2 A disassembled schematic diagram of a mold for preparing concrete specimens provided in an embodiment of this utility model; Figure 3 A schematic diagram showing the connection between the side plate and the bottom plate provided in an embodiment of this utility model; Figure 4 This is a schematic diagram showing the connection between the connector and the side plate provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the structure of the splash guard provided in an embodiment of the present utility model. Figure label: 1. Splash cover; 2. Horizontal plate; 3. Side plate; 4. Connecting shaft; 5. Limiting ring; 6. Handle; 7. Base plate; 8. Hinge; 9. Gap. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the embodiments, but the present invention is not limited to these embodiments.

[0022] This utility model embodiment provides a mold for preparing concrete specimens, such as... Figure 1 and Figure 2 As shown, the mold includes: The base plate 7 has two opposing first sides and two opposing second sides, with the first sides adjacent to the second sides; Two side plates 3, the bottom ends of which are rotatably connected to two first side edges respectively, and the two side plates 3 can tilt and rotate in a plane perpendicular to the bottom plate 7; Two horizontal plates 2, the bottom ends of which abut against the two second side edges respectively, and each horizontal plate 2 abuts against the two side plates 3; Two connectors are located on opposite sides of the two horizontal plates 2, respectively; the connectors are inserted through the two side plates 3 and are used to limit the movement of the two side plates 3; A splash guard 1 is placed on top of the enclosed area formed by two side panels 3 and two horizontal panels 2.

[0023] In this embodiment, as Figure 3 As shown, the base plate 7 and each side plate 3 are rotatably connected by multiple spaced hinges 8.

[0024] In this embodiment, as Figure 4 As shown, the connector includes: The connecting shaft 4 has a threaded section with external threads at one end and a smooth section without external threads at the other end; the smooth section and the threaded section are respectively mounted on the two side plates 3. The limiting ring 5 is fixedly sleeved on the smooth rod section and is located on the side of the side plate 3 through which the smooth rod section passes away from the other side plate 3. The smooth rod section rotates to drive the threaded section to be threadedly connected to the side plate 3 through which it passes, and causes the limiting ring 5 to abut against the side plate 3 through which the smooth rod section passes.

[0025] In this embodiment, the side plate 3 through which the smooth rod segment passes has a through hole, and the smooth rod segment slides through the through hole; the side plate 3 through which the threaded segment passes has a threaded hole, and the threaded segment is threadedly connected to the threaded hole.

[0026] By rotating and engaging the threaded section with the threaded hole, and coordinating the engagement of the limiting ring 5 with the corresponding side plate 3, pressure is applied to one side of the two side plates 3. This allows for simultaneous limiting and fixing of the two side plates 3 and the two horizontal plates 2. This solves the problem in existing technologies where components used to fix the mold easily loosen during mold vibration, leading to mold deformation. Furthermore, compared to existing molds, it significantly reduces the number of assembly parts, simplifying the mold assembly and disassembly process and improving assembly efficiency. Furthermore, such as Figure 4 As shown, the connector also includes: Handle 6, connected to the end of the smooth rod section away from the threaded section, is used to drive the connecting shaft 4 to rotate around its axis. By setting handle 6, it is easy to rotate the smooth rod section so that the threaded section can rotate and engage with the threaded hole; at the same time, when filling the mold with concrete mixture, it is easy for the experimental personnel to grasp handle 6 to stabilize the mold and carry out layered filling and tamping work.

[0027] Furthermore, such as Figure 4 As shown, a positioning section is connected to the end of the threaded section away from the smooth rod section. This positioning section does not have external threads, and its outer diameter should be smaller than the inner diameter of the threaded hole. By setting the positioning section, after the connecting shaft 4 passes through the through hole, its threaded section can be quickly and smoothly inserted into the threaded hole using the positioning section, reducing the difficulty of aligning the threaded section with the threaded hole, thereby improving the efficiency of mold installation.

[0028] In this embodiment, the two side plates 3 have limiting grooves at positions corresponding to the horizontal plate 2, and the horizontal plate 2 abuts against the groove walls of the two limiting grooves. By setting the limiting grooves, the horizontal plate 2 can be slid along the limiting grooves to abut against the bottom plate 7 when installing the mold, which facilitates the quick positioning and fixing of the horizontal plate 2.

[0029] In this embodiment, the splash guard 1 is slidably disposed on the top of the two side plates 3.

[0030] Specifically, such as Figure 4 As shown, the top edges of the two side plates 3, which are far apart from each other, are respectively provided with sliding grooves, which are parallel to the bottom plate 7; the two sides of the splash cover 1 are slidably connected in the two sliding grooves respectively.

[0031] By installing the splash guard 1, concrete slurry can be effectively prevented from splashing outwards during vibration and compaction, thus avoiding environmental pollution caused by slurry splashing. Since the splash guard 1 is connected to the outer sides of the two side plates 3 by sliding in, it does not affect the internal structure of the mold cavity, thereby ensuring that the shape of the mold cavity remains unchanged. At the same time, the connection between the splash guard 1 and the two side plates 3 further limits the movement of the two side plates 3, thereby further enhancing the stability of the mold.

[0032] Furthermore, a gap 9 is provided between the splash cover 1 and the top of the two horizontal plates 2. This gap 9 serves as a viewing window for observing the interior of the mold, facilitating the monitoring of the test piece preparation process. To form the gap 9, the middle of the splash cover 1 may be higher than the side edges. For example, the splash cover 1 may be as follows: Figure 5 The triangle shown can also be an arch, etc.

[0033] Furthermore, the splash guard 1 and the two side plates 3 are also equipped with fixing components. These components are used to fix the splash guard 1 to the two side plates 3 after it is installed in place, so as to prevent the splash guard 1 from slipping when the mold vibrates. The fixing method of these components can be the use of snap-fit ​​and slot, or the use of bolts and nuts, etc., which can be flexibly selected according to the actual situation.

[0034] In this embodiment, the base plate 7, side plate 3, horizontal plate 2, connectors and splash guard 1 are all made of hard rust-resistant materials to ensure the durability of the mold.

[0035] The method of using the mold described in this embodiment is as follows: When installing the mold, first rotate the two side plates 3 until they are perpendicular to the base plate 7. Then, insert the two horizontal plates 2 into their corresponding limiting grooves from top to bottom, ensuring that the two horizontal plates 2 abut against the base plate 7. Next, hold the handle 6 and pass the connecting shaft 4 through the through hole on one side plate 3 and into the threaded hole on the other side plate 3. Then, rotate the handle 6 clockwise to screw the threaded section of the connecting shaft 4 into the threaded hole until the limiting ring 5 abuts against the corresponding side plate 3. After the mold is filled with concrete mix according to the test specifications, slide the splash guard 1 into the grooves of the two side plates 3 and fix it in place, thus completing the installation and use of the mold.

[0036] When disassembling the mold, first slide the splash guard 1 off the two side plates 3, then rotate the handle 6 in the opposite direction to completely unscrew the threaded section of the connecting shaft 4 from the threaded hole. Then, hold the handle 6 to remove the connecting shaft 4 from the two side plates 3, and then slide the two horizontal plates 2 out of the limiting groove from bottom to top. Finally, rotate the two side plates 3 in a direction away from each other to complete the disassembly of the mold.

[0037] This embodiment utilizes connectors to simultaneously connect two opposing side plates 3, effectively limiting the position of both side plates 3 and the two horizontal plates 2. This prevents the mold components from loosening due to vibration during use. Furthermore, the connection between the splash guard 1 and the two side plates 3 further limits their position, enhancing mold stability, effectively preventing deformation, and ensuring the quality of the prepared specimens. Since this embodiment uses only two connectors to fix and limit the various parts of the mold, compared to existing technologies that use numerous screws and nuts, the number of accessories used to fix the mold is greatly reduced. This not only facilitates accessory management and reduces the probability of accessory loss but also improves the convenience and efficiency of mold assembly and disassembly. The side plates 3 and the base plate 7 are connected by hinges 8, reducing the number of disassembly structures in the mold and further improving the ease of assembly and disassembly. Simultaneously, the rotatable connection between the side plates 3 and the base plate 7 facilitates adjusting the brushing angle during oiling, effectively avoiding problems such as brushing dead corners and uneven brushing, thus facilitating subsequent demolding and ensuring the quality of the prepared specimens. Meanwhile, by setting up the splash guard 1, this embodiment can prevent concrete slurry from splashing outwards during vibration and compaction, ensuring the accuracy of specimen preparation and avoiding environmental pollution caused by slurry splashing.

[0038] This embodiment enhances the stability of the mold through the cooperation between the connector, two side plates 3, two horizontal plates 2 and splash guard 1, avoids the mold from deforming during use and affecting the quality of specimen preparation, and simplifies the mold assembly and disassembly process, thus improving the ease of use of the mold.

[0039] The above description is merely a few embodiments of this application and is not intended to limit this application in any way. Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any changes or modifications made by those skilled in the art without departing from the scope of the technical solution of this application using the disclosed technical content are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A mold for preparing concrete specimens, characterized in that, The mold includes: The base plate has two opposing first sides and two opposing second sides, wherein the first sides are adjacent to the second sides; Two side plates, the bottom ends of which are rotatably connected to two first side edges respectively, and the two side plates can tilt and rotate in a plane perpendicular to the bottom plate; Two horizontal boards, the bottom ends of which abut against the two second side edges respectively, and each horizontal board abuts against the two side boards; Two connectors are located on opposite sides of the two horizontal plates, respectively; the connectors pass through the two side plates and are used to limit the movement of the two side plates; A splash guard is placed on top of the enclosed area formed by the two side panels and the two cross panels.

2. The mold according to claim 1, characterized in that, The connector includes: A connecting shaft has a threaded section at one end and a smooth section at the other end; the smooth section and the threaded section are respectively inserted through two side plates; A limiting ring is fixedly sleeved on the smooth rod section and located on the side of the side plate through which the smooth rod section passes, away from the other side plate; the smooth rod section is rotated to drive the threaded section to be threadedly connected to the side plate through which it passes, and to make the limiting ring abut against the side plate through which the smooth rod section passes.

3. The mold according to claim 2, characterized in that, The smooth rod section has a through hole in the side plate through which it passes, and the smooth rod section slides through the through hole; the threaded section has a threaded hole in the side plate through which it passes, and the threaded section is threadedly connected to the threaded hole.

4. The mold according to claim 2 or 3, characterized in that, The connector also includes: A handle is attached to the end of the smooth rod section away from the threaded section, for driving the connecting shaft to rotate about its axis.

5. The mold according to claim 1, characterized in that, The two side plates have limiting grooves at positions corresponding to the horizontal plate, and the horizontal plate abuts against the groove walls of the two limiting grooves.

6. The mold according to claim 1, characterized in that, The mold also includes: Multiple hinges are provided on the bottom end of the side plate and the corresponding first side edge, for rotating connection between the bottom end of the side plate and the corresponding first side edge.

7. The mold according to claim 1, characterized in that, The splash guard is slidably mounted on the top of the two side plates.

8. The mold according to claim 7, characterized in that, The top edges of the two side plates, which are far apart from each other, are provided with sliding grooves, which are parallel to the bottom plate; the two sides of the splash cover are slidably connected in the two sliding grooves.

9. The mold according to claim 1, characterized in that, There is a gap between the splash guard and the top of the two horizontal plates.

10. The mold according to claim 1, characterized in that, The base plate, the side plate, the cross plate, the connector, and the splash guard are all made of hard, rust-resistant materials.

Images