Concrete test block compressive strength testing device

Abstract

The utility model discloses a concrete test block compressive strength testing device which comprises a testing workbench, a testing box body is arranged on the testing workbench, a box door capable of being opened and closed is arranged on the front face of the testing box body, a liftable pressure applying assembly is arranged on the testing box body, a pressing plate is arranged below the pressure applying assembly, and the box door is arranged on the testing box body. A supporting plate corresponding to the pressing plate is arranged on the testing workbench, and the supporting plate is used for placing a test block; waste material openings are formed in the positions, on the two sides of the supporting plate, of the testing workbench, the length of the waste material openings is not smaller than the inner width size of the testing box body, and a detachable collecting frame is arranged below the waste material openings. According to the concrete test block compressive strength testing device, by improving the supporting mode of the testing workbench and the test block, the convenience of placing the test block and cleaning waste of the test block can be improved, meanwhile, the safety of a compressive test is improved, and particles of the crushed test block are prevented from being sputtered outwards.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete performance detection devices, in particular to a concrete test block compressive strength testing device. Background Art

[0002] The compressive strength testing machine is a commonly used mechanical property testing instrument. For example, the concrete pressure testing machine can measure and judge the performance parameters of concrete. During the test, the concrete test block is placed in the instrument and pressure is applied to the concrete test block to test the relevant parameters.

[0003] Most existing concrete compression testing machines are open-type. While simple, these structures can cause broken test block particles to break out and injure personnel during the compression test. These particles can also scatter around the machine, increasing the cleaning workload for test personnel. Particles trapped in corners and crevices are difficult to clean and can accumulate over time. While some testing machines are equipped with protective doors, which improve safety, they don't significantly assist in clearing particles and waste. Summary of the Invention

[0004] The purpose of the utility model is to provide a concrete test block compressive strength testing device to solve the problems existing in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A device for testing the compressive strength of concrete test blocks comprises a test workbench, a test box body is provided on the test workbench, a front side of the test box body has an openable and closable box door, a liftable pressure assembly is provided on the test box body, a pressure plate is provided below the pressure assembly, a support plate corresponding to the pressure plate is provided on the test workbench, and the support plate is used to place the test block; waste openings are provided on the test workbench on both sides of the support plate, the length of the waste openings is not less than the internal width of the test box body, and a detachable collection frame is provided below the waste opening.

[0007] By improving the support method of the test workbench and the test block, the present concrete test block compressive strength testing device can improve the convenience of test block placement and test block waste cleaning, while improving the safety of the compression test and preventing particles of the crushed test block from splashing outward.

[0008] When the door is closed, the test chamber forms a relatively enclosed test area, providing excellent protection. The waste outlet is located directly within the test chamber, on both sides of the support plate, to collect crushed test block particles. After being blocked by the test chamber and the door, these fragmented particles naturally fall into the waste outlet and into the collection basket below. The collection basket can centrally store these broken waste materials for periodic emptying.

[0009] Furthermore, the upper portion of the waste opening has a material guide slope, one side of which extends to the inner wall of the test box, and the other side of which extends to the upper edge of the support plate. This facilitates the falling of crushed waste and prevents waste from accumulating at the corners of the support plate.

[0010] Furthermore, the lower half of the waste opening is provided with a plurality of connecting ribs.

[0011] Furthermore, the bottom of the test workbench is provided with hanging chutes along both sides of the waste opening, and the inner ends of the hanging chutes are provided with limit blocks; the upper edges of both sides of the collection frame are provided with connecting ears, which are slidably arranged in the hanging chutes, so as to facilitate the placement and removal of the collection frame.

[0012] Furthermore, the size of the upper opening of the collecting frame is larger than the size of the waste opening, and the end surface of the collecting frame is also provided with a collecting frame handle.

[0013] Furthermore, an arc chamfer structure is provided between the support plate and the back plate of the test box, a distance is provided between the support plate and the box door, and a flexible sealing block with a size not less than the distance is provided below the inner side of the box door.

[0014] Furthermore, the test box has a pair of side support plates, a back plate is provided behind the pair of side support plates, a crossbeam is provided above the pair of side support plates, the pressure assembly is installed on the crossbeam, and the box door is connected to the front of the pair of side support plates in an up and down sliding manner.

[0015] Furthermore, the door is provided with a transparent window and a door handle.

[0016] Furthermore, the pressure-applying assembly includes a driving source arranged on the test box, the output end of the driving source extends into the test box and is connected to a mechanical sensor through a connecting piece, the mechanical sensor is connected to the pressure plate through a mounting seat, and guide rods are respectively provided at the four corners of the pressure plate; it also includes a host computer arranged on one side of the test box, and the driving source and the mechanical sensor are respectively connected to the host computer through cables.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. The concrete specimen compressive strength testing device can improve the convenience of specimen placement and specimen waste cleaning by improving the support method of the test workbench and the test block, while improving the safety of the compression test and avoiding the particles of the crushed specimen from splashing outward; 2. After the box door is closed, the test box body can form a relatively closed test area on all sides, which has a better protective effect; 3. The above method can prevent specimen particles from scattering onto the test workbench, and avoid the cleaning and sweeping of the test workbench; in actual use, the crushed specimen particles can easily fall into the waste port from both sides; 4. The collection frame can store these broken wastes in a centralized manner, and can be dumped regularly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a concrete test block compressive strength testing device of the present invention;

[0019] Figure 2 This is a partial cross-sectional structural diagram of a concrete test block compressive strength testing device according to the present invention;

[0020] Figure 3 This is a schematic diagram of a waste outlet of a concrete test block compressive strength testing device according to the present invention;

[0021] In the figure: 1. Test workbench; 2. Test box; 201. Box door; 202. Side support plate; 203. Back plate; 204. Crossbeam; 3. Press plate; 4. Support plate; 5. Waste material outlet; 6. Collection frame; 7. Material guide slope; 8. Connecting rib; 9. Suspension slide; 10. Connecting ear; 11. Collection frame handle; 12. Transparent window; 13. Box door handle; 14. Drive source; 15. Mechanical sensor; 16. Mounting seat; 17. Guide rod; 18. Host computer; 19. Arc chamfer structure; 20. Flexible sealing block. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0024] like Figure 1 and Figure 2 As shown, a concrete specimen compressive strength testing device includes a test workbench 1, a test box 2 is provided on the test workbench 1, the front of the test box 2 has an openable and closable box door 201, a liftable pressure component is provided on the test box 2, a pressure plate 3 is provided below the pressure component, and a support plate 4 corresponding to the pressure plate 3 is provided on the test workbench 1, and the support plate 4 is used to place the test block; waste ports 5 are provided on the test workbench on both sides of the support plate 4, the length of the waste port 5 is not less than the internal width dimension (front and back dimension) of the test box 2, and a detachable collection frame 6 is provided below the waste port 5.

[0025] By improving the support method of the test workbench and the test block, the present concrete test block compressive strength testing device can improve the convenience of test block placement and test block waste cleaning, while improving the safety of the compression test and preventing particles of the crushed test block from splashing outward.

[0026] The test workbench 1 is a metal workbench with several high-strength support legs underneath to provide sufficient supporting force; the pressure assembly can move up and down, driving the pressure plate 3 to squeeze the concrete test block on the support plate 4 to complete the pressure test. The concrete test block can be set as a square test block or a round test block according to the test indicators and types.

[0027] When the door 201 is closed, the test chamber 2 forms a relatively enclosed test area, providing excellent protection. The waste opening 5 is directly disposed within the test chamber 2 and on both sides of the support plate 4. This allows for direct collection of crushed test block particles. After being blocked by the test chamber 2 and the door, these fragmented particles naturally fall into the waste opening 5 and into the collection frame 6 below.

[0028] At the end of the test, the chamber door 201 is opened and the remaining broken test blocks on the support plate 4 are simply swept to both sides to ensure that the entire workbench surface is neat and clean. This cleaning method is relatively simple, can reduce the difficulty and time of cleaning, and facilitates continuous batch testing. The above method can prevent test block particles from being scattered onto the test workbench, eliminating the need for cleaning and sweeping the test workbench. In actual use, the crushed test block particles can easily fall into the waste port 5 from both sides. The collection frame 6 can centrally store these broken waste materials and dump them regularly.

[0029] The waste opening 5 can span the front-to-back direction of the test box 2. In other words, within the test workbench area where the test box 2 is located, only the support plate 4 and the waste opening 5 exist. This ensures that all waste outside the support plate falls into the waste opening 5. The reason why waste openings are not provided below or on all sides of the support plate is to ensure the support strength and stability of the area where the support plate is located. The workbench below the support plate is still an integrated structure with the entire workbench, and the waste openings on both sides have relatively little impact on its support stability.

[0030] Furthermore, the upper portion of the waste opening 5 has a material guiding slope 7 , wherein the material guiding slope 7 on one side extends to the inner wall of the test box 2 , and the material guiding slope 7 on the other side extends to the upper edge of the support plate 4 .

[0031] The setting of the material guide slope 7 is conducive to the falling of crushed waste. It extends to the upper edge of the support plate and can also avoid the accumulation of waste at the corners on both sides of the support plate. After each test, the table top of the support plate can be cleaned with a brush.

[0032] Furthermore, the lower half of the waste opening 5 is equipped with several connecting ribs 8. The upper half is an inverted trapezoidal structure to allow for a larger entrance to the waste opening. The lower half is a rectangular structure with these connecting ribs 8 to mitigate the overall strength loss of the test bench caused by the waste opening. These connecting ribs 8 do not need to be evenly spaced; they can be larger or smaller, allowing larger pieces of crushed waste to fall into the collection basket below.

[0033] Furthermore, hanging chutes 9 are respectively provided on both sides of the waste port 5 below the test workbench 1, and the inner ends of the hanging chutes 9 are provided with limit blocks; connecting ears 10 are provided on the upper edges of both sides of the collecting frame 6, and the connecting ears 10 can be slidably arranged in the hanging chute 9.

[0034] The arrangement of the hanging chute 9 and the connecting ear 10 facilitates the placement and extraction of the collecting frame 6 without occupying the working area above the test workbench.

[0035] Furthermore, the upper opening size of the collection frame 6 is larger than the size of the waste port 5, ensuring that all objects entering the waste port can fall into the collection frame below; the end face of the collection frame 6 is also provided with a collection frame handle 11 to facilitate pulling the collection frame 6.

[0036] Further, such as Figure 3 As shown, an arc chamfer structure 19 is provided between the support plate 4 and the back plate 203 of the test box 2. This arrangement, on the one hand, avoids the presence of a gap between the support plate 4 and the back plate 203 to prevent the accumulation of waste particles; on the other hand, it can avoid the accumulation of particles at right angles, making cleaning easier.

[0037] In some optional embodiments, a gap is provided between the support plate 4 and the door 201. A flexible sealing block 20, no smaller than the gap, is positioned below the inner side of the door. Because the door is a movable component, some clearance inevitably exists between it and the front edge of the support plate. To avoid this, the flexible sealing block 20 is provided. When the door is closed, it forms a self-sealing structure. The flexible sealing block 20 may be a foam pad, rubber pad, or other material. The flexible sealing block only needs to be installed where it corresponds to the support plate; it is not required on either side. Considering the potential for flying particles above the flexible sealing block, it is sufficient to periodically clean it.

[0038] Furthermore, the test box 2 has a pair of side support plates 202, a back plate 203 is provided behind the pair of side support plates 202, a crossbeam 204 is provided above the pair of side support plates 202, the pressure assembly is installed on the crossbeam 204, and the box door 201 is connected to the front of the pair of side support plates 202 in an up and down sliding manner.

[0039] The sliding connection can be a connection structure such as a slide groove, a slide rail, etc. that cooperates with a slider, which has an upper limit and usually also has a hovering function, that is, when the door is opened upward, the door can stop at the top.

[0040] In other embodiments, the door may also be opened horizontally.

[0041] Furthermore, a transparent window 12 is provided on the box door 201 to facilitate observation of the test block during testing; and a box door handle 13 is provided to facilitate opening and closing the box door.

[0042] Furthermore, the pressure-applying assembly includes a driving source 14 arranged on the crossbeam, the output end of the driving source 14 extends into the test box body and is connected to a mechanical sensor 15 through a connector, the mechanical sensor 15 is connected to the pressure plate 3 through a mounting seat 16, and the four corners of the pressure plate 3 are also provided with guide rods 17; it also includes a host computer 18 arranged on one side of the test box body 2, and the driving source 14 and the mechanical sensor 15 are respectively connected to the host computer 18 through cables.

[0043] The driving source 14 is usually hydraulically driven, but in some cases where the force is not too great, an electric or pneumatic driving source may also be used. The driving source 14 first drives the entire pressing plate 3 down to the upper surface of the test block, and then begins to apply the test pressure. The mechanical sensor 15 can obtain the current pressure value in real time. When the test block is broken, the pressure can be stopped and the pressing plate can be raised.

[0044] In some embodiments, the mechanical sensor may be arranged below or inside the support plate, and the pressure plate above is only responsible for applying pressure.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete test block compressive strength testing device, comprising a testing workbench, characterized in that: A test box is provided on the test workbench, the front of the test box is provided with an openable and closable box door, a liftable pressure assembly is provided on the test box, a pressure plate is provided below the pressure assembly, and a support plate corresponding to the pressure plate is provided on the test workbench, the support plate is used to place test blocks; waste openings are provided on the test workbench on both sides of the support plate, the length of the waste openings is not less than the internal width of the test box, and a detachable collection frame is provided below the waste opening.

2. The concrete test block compressive strength testing device according to claim 1, characterized in that: The upper part of the waste material opening is provided with a material guiding slope, the material guiding slope on one side extends to the inner side wall of the test box body, and the material guiding slope on the other side extends to the upper edge of the support plate.

3. The concrete test block compressive strength testing device according to claim 1, characterized in that: The lower part of the waste opening is also provided with a plurality of connecting ribs.

4. The concrete test block compressive strength testing device according to claim 1, characterized in that: Suspension slides are provided along both sides of the waste opening below the test workbench, and limit blocks are provided at the inner ends of the suspension slides; connecting ears are provided on the upper edges of both sides of the collecting frame, and the connecting ears can be slidably arranged in the suspension slides.

5. The concrete test block compressive strength testing device according to claim 1, characterized in that: The size of the upper opening of the collecting frame is larger than that of the waste opening, and a collecting frame handle is further provided on the end surface of the collecting frame.

6. The concrete test block compressive strength testing device according to claim 1, characterized in that: An arc chamfered structure is provided between the support plate and the back plate of the test box, a spacing is provided between the support plate and the box door, and a flexible sealing block having a size not less than the spacing is provided at the lower inner side of the box door.

7. The concrete test block compressive strength testing device according to claim 1, characterized in that: The test box body has a pair of side support plates, a back plate is arranged behind the pair of side support plates, a crossbeam is arranged above the pair of side support plates, the pressure assembly is installed on the crossbeam, and the box door is connected to the front of the pair of side support plates in an up and down sliding manner.

8. The concrete test block compressive strength testing device according to claim 1, characterized in that: The box door is provided with a transparent window and a box door handle.

9. The concrete test block compressive strength testing device according to claim 1, characterized in that: The pressure-applying assembly includes a driving source arranged on the test box, the output end of the driving source extends into the test box and is connected to a mechanical sensor through a connector, the mechanical sensor is connected to the pressure plate through a mounting seat, and guide rods are respectively provided at the four corners of the pressure plate; and also includes a host computer arranged on one side of the test box, the driving source and the mechanical sensor are respectively connected to the host computer through cables.

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