A building material pressure testing device

Abstract

The utility model discloses a building material pressure test device relates to pressure test equipment technical field, including bottom plate, the top of bottom plate setting top plate and setting support station of bottom plate top plate, the centre of top plate is fixed with hydraulic cylinder, the top of bottom plate is firmly connected with support seat, the inside of support seat is provided with the chip collecting groove, the inside of chip collecting groove is provided with chip collecting box, the utility model discloses the bottom of top plate is provided with transparent protective cover, when needing to carry out the pressure test to concrete test block, the transparent protective cover is lowered, and the funnel groove inside of support seat is clamped, and the concrete test block collapse produces the chip splashing and impact to the transparent protective cover surface natural drop to the funnel groove inside and drop into the chip collecting box, the chip on the support station top can manually clean to the funnel groove inside and enter into the chip collecting box, and the chip and splash -proof function are integrated linkage, improve the convenience of overall use.

Description

Technical Field

[0001] This utility model relates to the field of pressure testing equipment technology, specifically a pressure testing device for building materials. Background Technology

[0002] To ensure the quality and safety of concrete, it is necessary to test the compressive strength of concrete. This is a key indicator for evaluating the quality of concrete. The compressive strength test usually uses the test block method, which involves making concrete test blocks, curing them according to regulations, and then using a concrete pressure testing machine to test the compressive strength of the test blocks and obtain the compressive strength value of the test blocks.

[0003] Currently, while traditional concrete compression testing machines can achieve the purpose of testing concrete strength, certain problems still exist. For example, when conducting compressive strength tests on concrete specimens, as the pressure on the specimens increases, the concrete specimens tend to crumble. This process involves a huge release of energy, causing concrete fragments (chips) to violently scatter at high speed in all directions. Most commercial compression testing machines in the current technology adopt an open or semi-open frame structure design and are only equipped with simple protective nets or baffles. These protective measures mainly focus on preventing large fragments. The impact of flying debris can injure operators. The equipment has extremely limited effectiveness in blocking numerous, high-speed flying fine concrete fragments. These fragments can easily burst out from the gaps in the protective structure and scatter over a wide area around the testing machine, potentially causing injury to operators. Furthermore, existing equipment generally lacks a dedicated and efficient debris collection system. The concrete fragments generated by the collapse mainly rely on gravity to naturally scatter onto the testing machine's base platform or the ground. This passive handling method requires operators to manually clean up using tools such as brooms and vacuum cleaners. In particular, the fine dust is easy to spread, polluting the laboratory environment and greatly reducing testing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a pressure testing device for building materials to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a base plate, a top plate disposed on the top of the base plate, and a support platform disposed on the top plate of the base plate, wherein a hydraulic cylinder is fixedly sleeved at the center of the top plate; A support base is fixed to the top of the base plate. A chip collection groove is provided inside the support base. A chip collection box is provided inside the chip collection groove. A funnel groove communicating with the chip collection groove is provided on the top of the support base. A transparent protective cover is fitted on the bottom of the top plate and on the surface of the hydraulic cylinder. Multiple equidistant circumferentially arranged support blocks are assembled between the funnel groove and the support platform.

[0006] In a further embodiment, the bottom of the top plate is symmetrically fixed with connecting brackets, and the connecting brackets are threaded with limit bolts. The surface of the transparent protective cover is symmetrically provided with threaded grooves that are threadedly connected to the limit bolts.

[0007] In a further embodiment, the output end of the hydraulic cylinder is equipped with a mounting block, a pressure sensor is fixedly connected to the bottom of the mounting block, and a pressure block is mounted on the bottom of the pressure sensor.

[0008] In a further embodiment, guide rods are symmetrically fixed to the top of the mounting block, the guide rods are slidably connected to the top plate, and multiple support rods are assembled between the top plate and the bottom plate.

[0009] In a further embodiment, the surface of the mounting block is fitted with a plurality of guide blocks arranged at equal intervals, and the interior of the transparent protective cover is provided with guide grooves that are slidably connected to the guide blocks.

[0010] In a further embodiment, the surface of the chip collection box is fitted with a slider, and the inside of the chip collection groove is provided with a sliding groove that is slidably connected to the slider.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention features a transparent protective cover at the bottom of the top plate. When a pressure test is required on a concrete test block, the transparent protective cover is lowered and inserted into the funnel groove of the support base. The debris generated by the breaking of the concrete test block splashes and hits the surface of the transparent protective cover, naturally falling into the funnel groove and into the debris collection box. The debris on the support platform can be manually swept into the funnel groove and into the debris collection box. The debris collection and anti-splash functions are integrated and linked, improving the overall ease of use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a partial exploded view of an embodiment of the present invention; Figure 3 This is a partial structural cross-sectional view of an embodiment of the present utility model; Figure 4 This is a partial structural schematic diagram of an embodiment of the present utility model.

[0013] In the diagram: 1. Base plate; 2. Top plate; 3. Support platform; 4. Hydraulic cylinder; 5. Support base; 6. Chip collection trough; 7. Chip collection box; 8. Funnel trough; 9. Transparent protective cover; 10. Support block; 11. Connecting bracket; 12. Limit bolt; 13. Threaded groove; 14. Mounting block; 15. Pressure sensor; 16. Pressure block; 17. Guide rod; 18. Support rod; 19. Guide block; 20. Guide groove; 21. Slider; 22. Slide groove. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] This embodiment discloses a building material pressure testing device, including a base plate 1, a top plate 2 disposed on top of the base plate 1, and a support platform 3 disposed on the top plate 2. A hydraulic cylinder 4 is fixedly sleeved at the center of the top plate 2. A mounting block 14 is assembled at the output end of the hydraulic cylinder 4. A pressure sensor 15 is fixedly connected to the bottom of the mounting block 14. A pressure block 16 is assembled at the bottom of the pressure sensor 15. Figure 1 , Figure 2 and Figure 4 As shown in this application, the support platform 3 is located on the top of the base plate 1 and is used to place concrete test blocks. The hydraulic cylinder 4 is installed at the center of the top plate 2 and is connected to an external terminal device. The hydraulic cylinder 4 is controlled by the external terminal device. The mounting block 14 is installed at the output end of the hydraulic cylinder 4. When the output end of the hydraulic cylinder 4 is working, it can drive the mounting block 14 to descend. The pressure block 16 is designed at the bottom of the mounting block 14 and is used in conjunction with the support platform 3. When the mounting block 14 descends, it can drive the pressure block 16 to descend. The pressure block 16 descends and contacts the concrete test block placed on the support platform 3. The pressure block 16, in conjunction with the support platform 3, can generate pressure on the concrete test block. The pressure sensor 15 is installed between the mounting block 14 and the pressure block 16 and is connected to the external terminal device. When the pressure block 16 contacts the concrete test block, the pressure block 16 is subjected to reverse pressure, which is transmitted to the pressure sensor 15 and displayed by the external terminal device. The threshold (resolution) of the pressure sensor 15 is 0.1kN and the range is 2000kN.

[0016] Preferably, guide rods 17 are symmetrically fixed to the top of the mounting block 14, and the guide rods 17 are slidably connected to the top plate 2. Multiple support rods 18 are assembled between the top plate 2 and the bottom plate 1, such as... Figure 1 and Figure 2 As shown in this application, guide rods 17 are installed on the top of mounting block 14. There are two of them, and they are designed symmetrically. Guide rods 17 are slidably connected to top plate 2. When the hydraulic cylinder 4 drives the mounting block 14 to descend, it can slide and limit the mounting block 14. Support rods 18 are designed between bottom plate 1 and top plate 2. There are four of them, which are installed at the four corners of bottom plate 1 and top plate 2 respectively, for supporting and fixing top plate 2.

[0017] More specifically, a support base 5 is fixed to the top of the base plate 1. A chip collection groove 6 is formed inside the support base 5, and a chip collection box 7 is installed inside the chip collection groove 6. A funnel groove 8 communicating with the chip collection groove 6 is formed on the top of the support base 5. A transparent protective cover 9 is fitted onto the bottom of the top plate 2 and the surface of the hydraulic cylinder 4. Multiple equidistantly arranged circumferential support blocks 10 are assembled between the funnel groove 8 and the support platform 3. Figure 1 , Figure 2 and Figure 3 As shown, in this application, the support base 5 is installed on the top of the base plate 1. The chip collection groove 6 is opened inside the support base 5, and the front opening of the chip collection groove 6 is on the surface of the support base 5 for storing and fixing the chip collection box 7. The funnel groove 8 is opened on the top of the support base 5. Its funnel shape allows the chips to fall naturally. The chip collection box 7 is located in the chip collection groove 6 and is used to collect the chips that fall from the funnel groove 8. The support block 10 is located inside the funnel groove 8 and is arranged in a ring circumferential direction. The top of the support block 10 is fixedly connected to the bottom of the support platform 3. The support block 10 is used to support and fix the support platform 3, fixing the support platform 3 and the support base 5 together. The transparent protective cover 9 is designed on the surface of the hydraulic cylinder 4. The transparent protective cover 9 is made of a high impact-resistant material, preferably polycarbonate. The transparent protective cover 9, made of ester material, has twice the impact resistance of tempered glass and a transparency of 90%, which can meet the observation needs of the staff. When the concrete test block is placed on the support platform 3, the hydraulic cylinder 4 drives the pressure block 16 on the mounting block 14 to press down, moving the transparent protective cover 9 downward on the mounting base. The transparent protective cover 9 is inserted into the funnel groove 8 of the support base 5. When the pressure block 16 contacts the concrete test block placed on the support platform 3, the concrete test block breaks, and the flying debris will hit the inner wall of the transparent protective cover 9 and fall naturally into the funnel groove 8. After passing through the funnel groove 8, it falls into the chip collection box 7. Through the transparent protective cover 9, the funnel groove 8, and the chip collection box 7 inside the chip collection groove 6, the pressure testing device can integrate the functions of splash prevention and storage.

[0018] Furthermore, the bottom of the top plate 2 is symmetrically fixed with connecting brackets 11, and limit bolts 12 are threadedly connected to the connecting brackets 11. The surface of the transparent protective cover 9 is symmetrically provided with threaded grooves 13 that are threadedly connected to the limit bolts 12. The surface of the mounting block 14 is equipped with multiple guide blocks 19 arranged at equal intervals. The interior of the transparent protective cover 9 is provided with guide grooves 20 that are slidably connected to the guide blocks 19. The surface of the chip collection box 7 is equipped with a slider 21, and the interior of the chip collection groove 6 is provided with a sliding groove 22 that is slidably connected to the slider 21. Figure 1 and Figure 2As shown, the connecting bracket 11 is located at the bottom of the top plate 2 and is fixed with screws. There are two connecting brackets 11, located on both sides of the surface of the transparent protective cover 9. The transparent protective cover 9 has two threaded grooves 13. Each connecting bracket 11 is equipped with a limit bolt 12. When the transparent protective cover 9 is not in use, the limit bolt 12 is screwed into the threaded groove 13 of the transparent protective cover 9 to fix the transparent protective cover 9. The guide block 19 is installed on the surface of the mounting block 14. The transparent protective cover 9 has a guide groove 20 inside. When the transparent protective cover 9 slides up and down on the surface of the mounting block 14, it slides and limits the transparent protective cover 9. The slider 21 and the slide groove 22 can slide the chip collection box 7 inside the chip collection groove 6.

[0019] In this application, the control of the hydraulic cylinder 4 and the display of data from the pressure sensor 15 of the concrete pressure testing machine are mainly achieved through an external dedicated terminal controller. The working principle is as follows: the hydraulic cylinder 4 consists of an oil tank, a high-pressure pump, a proportional valve, an oil cylinder, and a sensor. The oil pump pressurizes the hydraulic oil to 40MPa. After being purified by the oil filter, the flow rate is regulated by the electro-hydraulic servo valve and enters the oil cylinder, driving the piston to apply pressure. The pressure sensor 15 converts the pressure into an electrical signal (mV level). After signal amplification, A / D conversion, and three-level processing by a microcomputer, the signal is transmitted through the external terminal controller. The external terminal controller is preferably a DCS-30 that acquires the sensor signal with high precision through a 24-bit ADC and displays the force value, curve, and strength in real time.

[0020] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure testing device for building materials, comprising a base plate (1), a top plate (2) disposed on top of the base plate (1), and a support platform (3) disposed on the top plate (2) of the base plate (1), characterized in that: A hydraulic cylinder (4) is fixedly sleeved at the center of the top plate (2); A support base (5) is fixed to the top of the base plate (1). A chip collection groove (6) is provided inside the support base (5). A chip collection box (7) is provided inside the chip collection groove (6). A funnel groove (8) communicating with the chip collection groove (6) is provided on the top of the support base (5). A transparent protective cover (9) is provided on the bottom of the top plate (2) and on the surface of the hydraulic cylinder (4). A plurality of equidistant circumferentially arranged support blocks (10) are assembled between the funnel groove (8) and the support platform (3).

2. The building material pressure testing device according to claim 1, characterized in that: The bottom of the top plate (2) is symmetrically fixed with a connecting bracket (11), and a limit bolt (12) is threadedly connected to the connecting bracket (11). The surface of the transparent protective cover (9) is symmetrically provided with threaded grooves (13) that are threadedly connected to the limit bolt (12).

3. The building material pressure testing device according to claim 1, characterized in that: The output end of the hydraulic cylinder (4) is equipped with a mounting block (14), and a pressure sensor (15) is fixedly connected to the bottom of the mounting block (14). A pressure block (16) is mounted on the bottom of the pressure sensor (15).

4. The building material pressure testing device according to claim 3, characterized in that: The top of the mounting block (14) is symmetrically fixed with guide rods (17), the guide rods (17) are slidably connected to the top plate (2), and multiple support rods (18) are assembled between the top plate (2) and the bottom plate (1).

5. The building material pressure testing device according to claim 3, characterized in that: The surface of the mounting block (14) is fitted with a plurality of guide blocks (19) arranged at equal intervals, and the interior of the transparent protective cover (9) is provided with guide grooves (20) that are slidably connected to the guide blocks (19).

6. The building material pressure testing device according to claim 1, characterized in that: The surface of the chip collection box (7) is fitted with a slider (21), and the inside of the chip collection groove (6) is provided with a sliding groove (22) that is slidably connected to the slider (21).

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