A pressure testing device for studying the mechanical properties of fiber-recycled concrete

Abstract

This utility model relates to the technical field of pressure testing devices, and provides a pressure testing device for studying the mechanical properties of fiber-recycled concrete, including a housing and a cleaning structure. By incorporating the cleaning structure, after testing, a motor drives a rotating shaft, causing a first gear to drive a second gear. The rotation of the second gear causes a threaded rod, under the action of its threaded groove, to move a push plate horizontally, pushing the concrete block on the pressure plate into the collection box for collection. This facilitates cleaning of the concrete on the pressure plate, making it convenient for subsequent tests. Furthermore, the push plate is detachable, allowing for easy replacement according to usage needs, thus improving performance.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure testing devices, and in particular to a pressure testing device for studying the mechanical properties of fiber-recycled concrete. Background Technology

[0002] Research on the mechanical properties of fiber-recycled concrete mainly focuses on its compressive strength, tensile strength, flexural strength and other mechanical properties, as well as the influence of different fiber types and dosages on the mechanical properties of recycled concrete. A pressure testing device for the mechanical properties of fiber-recycled concrete is used to test the compressive strength and tensile strength of concrete blocks, thereby obtaining test data on its toughness properties. To this end, patent CN211042948U discloses a concrete pressure testing device, including a pressure testing chamber. A base is fixedly connected inside the pressure testing chamber, a support device is fixedly connected to the upper surface of the base, and a concrete specimen is fixedly connected to the upper surface of the support device. An upper pressure plate is fixedly connected inside the pressure testing chamber and above the concrete specimen. A pressure sensor is fixedly connected to the lower surface of the upper pressure plate, and a pressure rod is fixedly connected to the upper surface of the upper pressure plate. A display chamber is fixedly connected to the right side wall of the pressure testing chamber, a support plate is fixedly connected inside the display chamber, and a motor is fixedly connected to the upper surface of the support plate. A transmission rod is fixedly connected to the output end of the motor, and a gear is fixedly connected to the end of the transmission rod away from the motor. This invention uses a fully enclosed shell, allowing for close observation during testing and preventing injury from splashing concrete blocks. The concrete pressure testing device described above does not easily collect the broken concrete debris after the concrete block has been tested, resulting in concrete debris remaining inside the device, which affects the accuracy of the next test. Utility Model Content

[0003] The purpose of this invention is to provide a pressure testing device for studying the mechanical properties of fiber-recycled concrete, in order to solve the problem that existing concrete pressure testing devices are inconvenient for data collection.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a pressure testing device for studying the mechanical properties of fiber-recycled concrete, comprising a housing and a cleaning structure; A door is installed on one side of the box, and a fixing seat is fixed on one side inside the box. A compression structure is fixed to the top of the fixing seat. A cleaning structure is fixed to one side of the housing. The cleaning structure includes a bracket, a motor, a rotating shaft, a first gear, a first rotating block, a first rotating groove, a second gear, a second rotating block, a second rotating groove, a threaded groove, a threaded rod, a push plate, a moving plate, a guide rod, a sliding hole, a limiting block, a locking block, and a locking slot. The bracket is fixed to one side of the housing, and a motor is fixed to the top of the bracket. A rotating shaft is fixed to the output end of the motor. A collection structure is installed on the other side of the box.

[0005] Preferably, the extrusion structure includes a first hydraulic push rod, an upper pressure plate, a pressure bearing plate, and a pressure sensor. The first hydraulic push rod is fixed to one side of the top of the housing. The output end of the first hydraulic push rod inside the housing is fixed to the upper pressure plate. The top of the fixed seat is fixed to the pressure bearing plate. Pressure sensors are fixed to both sides inside the upper pressure plate.

[0006] Preferably, a first gear is fixed to one end of the rotating shaft, a first rotating block is fixed to one end of the first gear, a first rotating groove is provided inside the outer housing of the first rotating block, a second gear is installed on one side of the first gear, a second rotating block is fixed to one end of the second gear, a second rotating groove is provided inside the outer housing of the second rotating block, a threaded groove is provided inside the second gear, a threaded rod is installed inside the threaded groove, a push plate is installed at one end of the threaded rod inside the housing, a moving plate is fixed to the other end of the threaded rod outside the housing, a guide rod is fixed to one side of the housing, a sliding hole is provided inside the moving plate outside the guide rod, a limit block is fixed to one end of the guide rod, a locking block is fixed to the other end of the threaded rod, and a locking groove is provided on the outer side of the locking block inside the push plate.

[0007] Preferably, the first rotating block and the housing are rotatably connected through the first rotating groove, the second rotating block and the housing are rotatably connected through the second rotating groove, and the first gear and the second gear are meshed.

[0008] With the above structure, the first rotating block and the second rotating block respectively limit the first gear and the second gear during use, thereby improving the stability of the first gear and the second gear during rotation.

[0009] Preferably, one end of the threaded rod extends through the interior of the second rotating block into the interior of the housing and is fixedly connected to one end of the locking block, and the length of the push plate is the same as the width of the fixed seat.

[0010] With the above structure, when in use, the pusher plate can push all the concrete debris on the pressure plate into the inside of the collection box when it moves, making the cleaning more thorough.

[0011] Preferably, the threaded rod and the second gear are connected by a threaded groove, and the locking block and the locking groove are in an engaging structure.

[0012] With the above structure, the card block can be engaged with the card block through the card slot during use, which makes it easy to replace different ones according to the usage requirements, and facilitates disassembly and replacement.

[0013] Preferably, the collecting structure includes a chute, a collecting box, a second hydraulic push rod, a pressing plate, a handle, a fixing groove, a rotating rod, a roller sleeve, a T-slot, a T-block, a spring, and a stop block. The chute is located on one side of the box body, and the collecting box is installed inside the chute. A second hydraulic push rod is fixed at the middle position on one side of the collecting box. The pressing plate is fixed at the output of the second hydraulic push rod inside the collecting box. A handle is fixed to one side of the collecting box at the top of the second hydraulic push rod. A fixing groove is provided inside the box body at the bottom of the collecting box. A rotating rod is installed inside the fixing groove. A roller sleeve is fixed to the outside of the rotating rod. A T-slot is provided inside the box body at the top of the chute. A T-block is installed inside the T-slot. A spring is fixed to the top of the T-block. A stop block is fixed to one side of the T-block.

[0014] Preferably, the top of the collection box is open, the length of the extrusion plate is the same as the width of the inside of the collection box, the fixing grooves are evenly distributed inside the bottom of the collection box, the two ends of the rotating rod extend through the two ends of the fixing grooves into the inside of the box and are rotatably connected to the inside of the box, and the roller sleeve is made of rubber.

[0015] With the above structure, the friction between the roller sleeve and the bottom of the collection box is increased during use. As the collection box slides, the roller sleeve can be driven to rotate, thereby reducing the friction when the collection box slides out, making it easier for the collection box to slide out quickly.

[0016] Preferably, the outer side of the roller sleeve abuts against the bottom end of the collection box, the T-slots are symmetrically distributed at the top of the slide groove on one side of the box body, the T-blocks and T-slots form a telescopic structure through springs, and the collection box and slide groove form a locking structure through stop blocks.

[0017] With the above structure, the collection box is further limited by the stop block during use to prevent the collection box from sliding out of the inside of the chute.

[0018] The present invention provides a pressure testing device for studying the mechanical properties of fiber-recycled concrete, the advantages of which are: With a cleaning structure, after the test is completed, the motor is started to drive the shaft to rotate, which in turn drives the first gear to rotate the second gear. The rotation of the second gear causes the threaded rod to move the push plate horizontally under the action of the threaded groove, pushing the concrete block on the pressure plate into the collection box for collection. This facilitates the cleaning of the concrete on the pressure plate, making it easier to conduct the next test. Furthermore, the push plate is a detachable structure, which allows for easy replacement of the push plate according to usage needs, thus improving the performance. By incorporating a collection structure, the second hydraulic push rod moves the extrusion plate to compress the concrete blocks inside the collection box, preventing concrete from accumulating in one place and reducing the volume of collected concrete for easier aggregation. When the collection box is full of concrete blocks, the stop block is moved upwards, allowing the handle to be pulled to slide the collection box out of the chute. During the sliding process, the roller sleeve rotates, reducing friction and facilitating quick extraction and easy operation, thus simplifying the processing of broken concrete. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention; Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B; Figure 5 This is a three-dimensional structural diagram of the cleaning structure of this utility model.

[0020] The reference numerals in the diagram are as follows: 1. Box body; 2. Box door; 3. Fixed base; 4. Extrusion structure; 401. First hydraulic push rod; 402. Upper pressure plate; 403. Pressure plate; 404. Pressure sensor; 5. Cleaning structure; 501. Bracket; 502. Motor; 503. Rotating shaft; 504. First gear; 505. First rotating block; 506. First rotating groove; 507. Second gear; 508. Second rotating block; 509. Second rotating groove; 510. Threaded groove. 511. Threaded rod; 512. Push plate; 513. Moving plate; 514. Guide rod; 515. Sliding hole; 516. Limiting block; 517. Locking block; 518. Locking groove; 6. Collection structure; 601. Sliding groove; 602. Collection box; 603. Second hydraulic push rod; 604. Extrusion plate; 605. Handle; 606. Fixing groove; 607. Rotating rod; 608. Roller sleeve; 609. T-slot; 610. T-block; 611. Spring; 612. Stop block. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 The present invention provides a pressure testing device for studying the mechanical properties of fiber-recycled concrete, comprising a housing 1 and a cleaning structure 5.

[0023] Reference Figure 1 and Figure 2 As shown, a box 2 is installed on one side of the box 1. A fixed seat 3 is fixed inside the box 1 on one side. A pressing structure 4 is fixed at the top of the fixed seat 3. The pressing structure 4 includes a first hydraulic push rod 401, an upper pressure plate 402, a pressure bearing plate 403, and a pressure sensor 404. The first hydraulic push rod 401 is fixed to one side of the top of the box 1. The upper pressure plate 402 is fixed at the output end of the first hydraulic push rod 401 inside the box 1. The pressure bearing plate 403 is fixed at the top of the fixed seat 3. Pressure sensors 404 are fixed on both sides inside the upper pressure plate 402.

[0024] By placing a concrete block on the bearing plate 403, and then activating the first hydraulic push rod 401 to move the upper pressure plate 402 downward to the top of the concrete block, the concrete block is fixed between the upper pressure plate 402 and the bearing plate 403. This causes the upper pressure plate 402 to press down and break the concrete block after it reaches its maximum compressive strength. The pressure sensor 404 then records the pressure value, completing the test and facilitating the study of the mechanical properties of fiber-recycled concrete.

[0025] Reference Figure 2 and Figure 5 As shown, a cleaning structure 5 is fixed to one side of the housing 1. The cleaning structure 5 includes a bracket 501, a motor 502, a rotating shaft 503, a first gear 504, a first rotating block 505, a first rotating groove 506, a second gear 507, a second rotating block 508, a second rotating groove 509, a threaded groove 510, a threaded rod 511, a push plate 512, a moving plate 513, a guide rod 514, a sliding hole 515, a limiting block 516, a locking block 517, and a locking slot 518. The bracket 501 is fixed to one side of the housing 1, and an electric motor is fixed to the top of the bracket 501. The output end of the motor 502 is fixed with a rotating shaft 503. A first gear 504 is fixed to one end of the rotating shaft 503, and a first rotating block 505 is fixed to one end of the first gear 504. A first rotating groove 506 is provided inside the outer housing 1 of the first rotating block 505. A second gear 507 is installed on one side of the first gear 504. A second rotating block 508 is fixed to one end of the second gear 507. A second rotating groove 509 is provided inside the outer housing 1 of the second rotating block 508, and a threaded groove 510 is provided inside the second gear 507. A threaded rod 511 is installed inside the threaded groove 510. A push plate 512 is installed at one end of the threaded rod 511 inside the housing 1. A movable plate 513 is fixed at the other end of the threaded rod 511 outside the housing 1. A guide rod 514 is fixed on one side of the housing 1. A sliding hole 515 is provided inside the movable plate 513 outside the guide rod 514. A limit block 516 is fixed at one end of the guide rod 514. A locking block 517 is fixed at the other end of the threaded rod 511. A locking groove 518 is provided on the outside of the locking block 517 inside the push plate 512. The first rotating block 505 and the housing Body 1 is rotatably connected via the first rotating groove 506, the second rotating block 508 is rotatably connected to the housing 1 via the second rotating groove 509, the first gear 504 and the second gear 507 are meshed, one end of the threaded rod 511 passes through the interior of the second rotating block 508 and extends into the interior of the housing 1 and is fixedly connected to one end of the locking block 517, the length of the push plate 512 is the same as the width of the fixed seat 3, the threaded rod 511 and the second gear 507 are threadedly connected via the threaded groove 510, and the locking block 517 and the locking groove 518 are engaged.

[0026] After the test is completed, the broken concrete blocks are scattered on the pressure plate 403. Then, the motor 502 is started, which drives the shaft 503 to rotate, causing the first gear 504 to drive the second gear 507 to rotate. The rotation of the second gear 507 causes the threaded rod 511 to slide the moving plate 513 on the outside of the guide rod 514 under the action of the threaded groove 510. This causes the push plate 512 to move horizontally and push the concrete blocks on the pressure plate 403 into the collection box 602 for collection. This makes it easier to clean the concrete on the pressure plate 403 and facilitate the next test.

[0027] Reference Figures 1-4 As shown, a collection structure 6 is installed on the other side of the box 1. The collection structure 6 includes a chute 601, a collection box 602, a second hydraulic push rod 603, a pressing plate 604, a handle 605, a fixing groove 606, a rotating rod 607, a roller sleeve 608, a T-slot 609, a T-block 610, a spring 611, and a stop block 612. The chute 601 is located on one side of the box 1. The collection box 602 is installed inside the chute 601. The second hydraulic push rod 603 is fixed at the middle position on one side of the collection box 602. The pressing plate 604 is fixed at the output of the second hydraulic push rod 603 inside the collection box 602. The handle 605 is fixed on one side of the collection box 602 at the top of the second hydraulic push rod 603. The fixing groove 606 is provided inside the box 1 at the bottom of the collection box 602. The rotating rod 607 is installed inside the fixing groove 606. The roller sleeve 608 is fixed on the outside of the rotating rod 607. The top box 1 of 601 has a T-shaped groove 609 inside, and a T-shaped block 610 is installed inside the T-shaped groove 609. A spring 611 is fixed to the top of the T-shaped block 610, and a stop block 612 is fixed to one side of the T-shaped block 610. The length of the extrusion plate 604 is the same as the width inside the collection box 602. The fixing grooves 606 are evenly distributed inside the bottom box 1 of the collection box 602. The two ends of the rotating rod 607 pass through the two ends of the fixing grooves 606 and extend into the inside of the box 1, forming a rotatable connection with the inside of the box 1. The roller sleeve 608 is made of rubber, and the outer side of the roller sleeve 608 abuts against the bottom of the collection box 602. The T-shaped grooves 609 are symmetrically distributed at the top of the sliding groove 601 on one side of the box 1. The T-shaped block 610 and the T-shaped groove 609 form a telescopic structure through the spring 611. The collection box 602 and the sliding groove 601 form a locking structure through the stop block 612.

[0028] By activating the second hydraulic push rod 603, the extrusion plate 604 is moved to extrude concrete blocks inside the collection box 602, preventing concrete from accumulating in one place and reducing the volume of collected concrete for easier aggregation. When the collection box 602 is full of concrete blocks, the stop block 612 is moved upward, causing the T-shaped block 610 to slide upward and compress the spring 611. This allows the collection box 602 to slide out of the chute 601 by pulling the handle 605. During the sliding process, the roller sleeve 608 rotates, reducing friction and allowing the collection box 602 to be quickly extracted for easy operation and processing of broken concrete.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pressure testing device for studying the mechanical properties of fiber-recycled concrete, comprising a housing (1) and a clean structure (5); Its features are: A door (2) is installed on one side of the box (1), and the box (1) and the door (2) form a closed test space. A fixing seat (3) is fixed on one side inside the box (1), and a compression structure (4) is fixed on the top of the fixing seat (3). A cleaning structure (5) is fixed to one side of the housing (1). The cleaning structure (5) includes a bracket (501), a motor (502), a rotating shaft (503), a first gear (504), a first rotating block (505), a first rotating groove (506), a second gear (507), a second rotating block (508), a second rotating groove (509), a threaded groove (510), a threaded rod (511), a push plate (512), a moving plate (513), a guide rod (514), a sliding hole (515), a limiting block (516), a locking block (517), and a locking slot (518). The bracket (501) is fixed to one side of the housing (1). The top of the bracket (501) is fixed with a motor (502). The output end of the motor (502) is fixed with a rotating shaft (503). A collection structure (6) is installed on the other side of the box (1). 2.The pressure testing device for studying mechanical properties of fiber reinforced concrete according to claim 1, characterized in that: The extrusion structure (4) includes a first hydraulic push rod (401), an upper pressure plate (402), a pressure plate (403), and a pressure sensor (404). The first hydraulic push rod (401) is fixed to one side of the top of the housing (1). The output end of the first hydraulic push rod (401) inside the housing (1) is fixed with the upper pressure plate (402). The top of the fixed seat (3) is fixed with the pressure plate (403). Pressure sensors (404) are fixed on both sides inside the upper pressure plate (402). The upper pressure plate (402) and the bearing plate (403) work together to clamp and fix the specimen.

3. The pressure testing device for studying the mechanical properties of fiber reinforced concrete according to claim 1, characterized in that: One end of the rotating shaft (503) is fixed with a first gear (504), and one end of the first gear (504) is fixed with a first rotating block (505). The outer casing (1) of the first rotating block (505) has a first rotating groove (506). A second gear (507) is mounted on one side of the first gear (504). One end of the second gear (507) is fixed with a second rotating block (508). The outer casing (1) of the second rotating block (508) has a second rotating groove (509). The second gear (507) has a threaded groove (510). The box (1) is equipped with a threaded rod (511) inside. A push plate (512) is installed at one end of the threaded rod (511) inside the box (1). A moving plate (513) is fixed at the other end of the threaded rod (511) outside the box (1). A guide rod (514) is fixed on one side of the box (1). A sliding hole (515) is provided inside the moving plate (513) outside the guide rod (514). A limit block (516) is fixed at one end of the guide rod (514). A locking block (517) is fixed at the other end of the threaded rod (511). A slot (518) is provided on the outside of the locking block (517) inside the push plate (512).

4. The pressure testing device for studying the mechanical properties of fiber- reinforced concrete according to claim 3, characterized in that: The first rotating block (505) and the housing (1) are rotatably connected through the first rotating groove (506), the second rotating block (508) and the housing (1) are rotatably connected through the second rotating groove (509), and the first gear (504) and the second gear (507) are meshed.

5. The pressure testing device for studying the mechanical properties of fiber reinforced concrete according to claim 3, characterized in that: One end of the threaded rod (511) extends through the interior of the second rotating block (508) into the interior of the box (1) and is fixedly connected to one end of the locking block (517). The length of the push plate (512) is the same as the width of the fixed seat (3).

6. The pressure testing device for studying the mechanical properties of fiber reinforced concrete according to claim 3, characterized in that: The threaded rod (511) and the second gear (507) are connected by a threaded groove (510), and the locking block (517) and the locking groove (518) are engaged.

7. The pressure testing device for studying the mechanical properties of fiber reinforced concrete according to claim 1, characterized in that: The collecting structure (6) includes a chute (601), a collecting box (602), a second hydraulic push rod (603), a pressing plate (604), a handle (605), a fixing groove (606), a rotating rod (607), a roller sleeve (608), a T-slot (609), a T-block (610), a spring (611), and a stop block (612). The chute (601) is located on one side of the box body (1). The collecting box (602) is installed inside the chute (601). The second hydraulic push rod (603) is fixed at the middle position on one side of the collecting box (602). The pressing plate is fixed at the output of the second hydraulic push rod (603) inside the collecting box (602). (604) A handle (605) is fixed on one side of the top collection box (602) of the second hydraulic push rod (603). A fixing groove (606) is provided inside the bottom box (1) of the collection box (602). A rotating rod (607) is installed inside the fixing groove (606). A roller sleeve (608) is fixed on the outside of the rotating rod (607). A T-shaped groove (609) is provided inside the top box (1) of the slide groove (601). A T-shaped block (610) is installed inside the T-shaped groove (609). A spring (611) is fixed on the top of the T-shaped block (610). A stop block (612) is fixed on one side of the T-shaped block (610).

8. The pressure testing device for studying the mechanical properties of fiber-recycled concrete according to claim 7, characterized in that: The top of the collection box (602) is open. The length of the extrusion plate (604) is the same as the width inside the collection box (602). The fixing grooves (606) are evenly distributed inside the bottom box body (1) of the collection box (602). The two ends of the rotating rod (607) extend through the two ends of the fixing grooves (606) to the inside of the box body (1) and are rotatably connected to the inside of the box body (1). The roller sleeve (608) is made of rubber. 9.The pressure testing device for studying mechanical properties of fiber reinforced concrete according to claim 7, characterized in that: The outer side of the roller sleeve (608) abuts against the bottom of the collection box (602). The T-slot (609) is symmetrically distributed at the top of the slide groove (601) on one side of the box body (1). The T-block (610) and the T-slot (609) form a telescopic structure through the spring (611). The collection box (602) and the slide groove (601) form a locking structure through the stop block (612).

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