Controllable concrete crack manufacturing device

Abstract

The utility model relates to the technical field of concrete, and discloses a controllable concrete crack manufacturing device which solves the problem that an existing concrete crack manufacturing device is poor in using effect and comprises a supporting base, a heating furnace is fixedly arranged at one end of the top of the supporting base, and a refrigerating box is fixedly arranged at the other end of the top of the supporting base. One end of the heating furnace and one end of the refrigerating box are provided with combined door bodies, a plurality of ball guide rails penetrating through the heating furnace and the refrigerating box are fixedly arranged at the top end of the supporting base, a bearing table is arranged at the top ends of the ball guide rails, a detachable die sleeve is arranged at the top end of the bearing table, and a static pressure mechanism is fixedly arranged in the middle of one side of the supporting base. By means of the concrete crack manufacturing device, cracks can be automatically generated in concrete in a thermal expansion and cold contraction mode in advance, then the cracks are further expanded in cooperation with a pressurization mode, and the depth of the cracks is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete, and particularly relates to a controllable concrete crack manufacturing device. Background Technique

[0002] Concrete is one of the most commonly used building materials in modern construction projects. Improving the service performance of concrete materials is of great significance for improving the service life of building structures. In the experimental research on concrete component cracks, it is often necessary to artificially create cracks for research. At present, generally, a pressurized method is used to pressurize concrete specimens to generate cracks. However, only by the pressurized method, it is easy to crush the concrete specimens when the concrete does not have natural cracks. In addition, only by the vertical pressurized method, it is difficult to ensure the manufacturing effect of concrete cracks. Therefore, there is an urgent need for a controllable concrete crack manufacturing device to solve the above problems. Content of the Utility Model

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a controllable concrete crack manufacturing device, which effectively solves the problem of poor use effect of the existing concrete crack manufacturing device.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A controllable concrete crack manufacturing device, including a support base, one end of the top of the support base is fixedly provided with a heating furnace, the other end of the top of the support base is fixedly provided with a refrigeration box, one end of the heating furnace and the refrigeration box is provided with a combined door body, the top end of the support base is fixedly provided with a number of ball guide rails penetrating through the heating furnace and the refrigeration box, the top end of the ball guide rails is provided with a bearing platform, the top end of the bearing platform is provided with a detachable mold sleeve, and a static pressure mechanism is fixedly provided at the middle position on one side of the support base.

[0005] Preferably, the outer shells of the heating furnace and the refrigeration box are both heat-insulating structures. The combined door body is composed of a heat-insulating door panel, an L-shaped bracket and a multi-stage hydraulic telescopic rod. The L-shaped bracket is fixedly connected to the middle position of the top end of the heat-insulating door panel, and the multi-stage hydraulic telescopic rods are respectively connected between the L-shaped bracket and the heating furnace and the refrigeration box.

[0006] Preferably, a limit support platform matching the detachable mold sleeve is fixedly provided at the middle position of the top end of the bearing platform, a number of chutes matching the ball guide rails are opened at the bottom end of the bearing platform, and pull rings are fixedly provided at the middle positions of the four sides of the bearing platform.

[0007] Preferably, the static pressure mechanism is composed of a side support plate, a suspension beam, a hydraulic rod, a static pressure component and a movable connection seat. The side support plate is fixedly connected to one side of the support base, the suspension beam is fixedly connected to the top end of the side support plate, the hydraulic rod is inserted and connected to the suspension beam, and the static pressure component is rotatably connected to the bottom end of the hydraulic rod through the movable connection seat.

[0008] Preferably, the static pressure assembly is composed of a housing, an adjusting screw rod, a servo motor, a first slider, a first pressing seat, a second slider and a second pressing seat. The adjusting screw rod is rotatably connected to the inside of the housing. The servo motor is fixedly connected to one end of the housing and connected to the adjusting screw rod. The first slider and the second slider are respectively slidably connected to both ends inside the housing and sleeved on the adjusting screw rod. The adjusting screw rod is a two-section symmetric thread structure. The first pressing seat penetrates through the housing and is fixedly connected to the first slider. The second pressing seat penetrates through the housing and is fixedly connected to the second slider.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] (1) During operation, by providing a heating furnace and a refrigeration box, the concrete can be alternately heated and cooled, so that the concrete can naturally generate cracks due to the thermal expansion and contraction effect. By providing a combined door body composed of a heat-insulating door panel, an L-shaped bracket and a multi-stage hydraulic telescopic rod, the loss of heat energy and cold energy can be reduced. By providing a ball guide rail and a bearing table, the concrete can be supported and it is convenient to move the concrete, so that the concrete alternately enters the heating furnace and the refrigeration box.

[0011] (2) By providing a static pressure mechanism composed of a side support plate, a suspension beam, a hydraulic rod, a static pressure assembly and a movable connection seat, a static pressure can be applied to the cracked concrete, thereby improving the depth of the cracks and ensuring the crack quality. By providing a static pressure assembly composed of a housing, an adjusting screw rod, a servo motor, a first slider, a first pressing seat, a second slider and a second pressing seat, a lateral force can be applied to the concrete, which is more convenient for the generation of cracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model.

[0013] In the drawings:

[0014] Figure 1 is one of the structural schematic diagrams of the controllable concrete crack manufacturing device of the present utility model;

[0015] Figure 2 is another structural schematic diagram of the controllable concrete crack manufacturing device of the present utility model;

[0016] Figure 3 is the structural schematic diagram of the bearing table of the present utility model;

[0017] Figure 4 is the structural schematic diagram of the static pressure mechanism of the present utility model;

[0018] Figure 5 Structural schematic diagram of the hydrostatic component of the present utility model;

[0019] In the figure: 1, support base; 2, heating furnace; 3, refrigeration box; 4, combined door body; 5, ball guide rail; 6, bearing table; 7, detachable die sleeve; 8, hydrostatic mechanism; 9, heat insulation door panel; 10, L-shaped bracket; 11, multi-stage hydraulic telescopic rod; 12, limit support table; 13, chute; 14, pull ring; 15, side support plate; 16, hanging beam; 17, hydraulic rod; 18, hydrostatic component; 19, movable connection seat; 20, housing; 21, adjusting screw rod; 22, servo motor; 23, first slider; 24, first pressing seat; 25, second slider; 26, second pressing seat. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] As shown by Figure 1 a controllable concrete crack manufacturing device of the present utility model includes a support base 1. One end of the top of the support base 1 is fixedly provided with a heating furnace 2, and the other end of the top of the support base 1 is fixedly provided with a refrigeration box 3. Combined door bodies 4 are arranged at one ends of the heating furnace 2 and the refrigeration box 3. A plurality of ball guide rails 5 penetrating through the heating furnace 2 and the refrigeration box 3 are fixedly provided at the top end of the support base 1. A bearing table 6 is arranged at the top end of the ball guide rail 5. A detachable die sleeve 7 is arranged at the top end of the bearing table 6. A hydrostatic mechanism 8 is fixedly provided at the middle position on one side of the support base 1;

[0022] During use, the detachable die sleeve 7 is installed at the top end of the bearing table 6, and then concrete is poured into the detachable die sleeve 7. After the concrete is formed, the detachable die sleeve 7 is removed, and the concrete is alternately transported into the heating furnace 2 and the refrigeration box 3 through the bearing table 6 to realize alternate heating and cooling of the concrete, so that the concrete naturally generates cracks due to the thermal expansion and contraction effect. Finally, the hydrostatic mechanism 8 is used to apply pressure to the concrete to increase the depth of the cracks;

[0023] As shown by Figure 1 and Figure 2Given that the outer shells of the heating furnace 2 and the refrigeration box 3 are both heat-insulating structures, the combined door body 4 is composed of a heat-insulating door panel 9, an L-shaped bracket 10, and a multi-stage hydraulic telescopic rod 11. The L-shaped bracket 10 is fixedly connected to the middle position at the top of the heat-insulating door panel 9, and the multi-stage hydraulic telescopic rods 11 are respectively connected between the L-shaped bracket 10 and the heating furnace 2 and the refrigeration box 3;

[0024] The multi-stage hydraulic telescopic rod 11 can drive the heat-insulating door panel 9 to rise and fall, thereby being able to block the heating furnace 2 and the refrigeration box 3, reducing the loss of heat energy and cold energy;

[0025] Given by Figure 1 and Figure 3 Given that at the middle position at the top of the bearing platform 6, a limit support platform 12 matching the detachable mold sleeve 7 is fixedly arranged. At the bottom end of the bearing platform 6, a number of chutes 13 matching the ball guide rails 5 are provided. At the middle position of the four sides of the bearing platform 6, pull rings 14 are fixedly arranged;

[0026] The detachable mold sleeve 7 can be limited by the limit support platform 12. The chutes 13 can match the ball guide rails 5 to realize the movement adjustment of the bearing platform 6. The pull rings 14 can facilitate the staff to move the bearing platform 6 with tools;

[0027] Given by Figure 1 、 Figure 4 and Figure 5 Given that the static pressure mechanism 8 is composed of a side support plate 15, a suspension beam 16, a hydraulic rod 17, a static pressure component 18, and a movable connection seat 19. The side support plate 15 is fixedly connected to one side of the support base 1. The suspension beam 16 is fixedly connected to the top of the side support plate 15. The hydraulic rod 17 is inserted and connected to the suspension beam 16. The static pressure component 18 is rotatably connected to the bottom end of the hydraulic rod 17 through the movable connection seat 19. The static pressure component 18 is composed of a housing 20, an adjustment screw rod 21, a servo motor 22, a first slider 23, a first pressure seat 24, a second slider 25, and a second pressure seat 26. The adjustment screw rod 21 is rotatably connected to the inside of the housing 20. The servo motor 22 is fixedly connected to one end of the housing 20 and is connected to the adjustment screw rod 21. The first slider 23 and the second slider 25 are respectively slidably connected to both ends inside the housing 20 and sleeved on the adjustment screw rod 21. The adjustment screw rod 21 is a two-section symmetric thread structure. The first pressure seat 24 is inserted through the housing 20 and fixedly connected to the first slider 23. The second pressure seat 26 is inserted through the housing 20 and fixedly connected to the second slider 25;

[0028] After natural cracks occur in the concrete due to thermal expansion and contraction, the hydraulic rod 17 is activated. The hydraulic rod 17 drives the static pressure assembly 18 to press down. Through the movable connecting seat 19, the static pressure assembly 18 can be rotated, facilitating the adjustment of the direction of the static pressure assembly 18. The adjusting screw rod 21 is driven to rotate by the servo motor 22. The adjusting screw rod 21 drives the first slider 23 and the second slider 25 to move, aligning the first pressing seat 24 and the second pressing seat 26 on both sides of the concrete crack. While pressing down, the first pressing seat 24 and the second pressing seat 26 are driven by the adjusting screw rod 21 to expand laterally, thereby applying a lateral force to the concrete, facilitating the generation of cracks and deepening the depth of the cracks.

[0029] During operation, by providing a heating furnace and a refrigeration box, the concrete can be alternately heated and cooled, enabling the concrete to naturally crack due to thermal expansion and contraction. By providing a combined door body composed of heat-insulating door panels, L-shaped brackets, and multi-stage hydraulic telescopic rods, the loss of heat energy and cold energy can be reduced. By providing ball guide rails and a bearing platform, the concrete can be supported and easily moved, allowing the concrete to alternately enter the interior of the heating furnace and the refrigeration box. By providing a static pressure mechanism composed of side support plates, suspension beams, hydraulic rods, static pressure assemblies, and movable connecting seats, a static pressure can be applied to the cracked concrete, thereby increasing the depth of the cracks and ensuring the quality of the cracks. By providing a static pressure assembly composed of a housing, an adjusting screw rod, a servo motor, a first slider, a first pressing seat, a second slider, and a second pressing seat, a lateral force can be applied to the concrete, making it even more convenient for cracks to occur.

Claims

1. A controllable concrete crack manufacturing device, comprising a support base (1), characterized in that: A heating furnace (2) is fixedly arranged at one end of the top of the support base (1), a refrigeration box (3) is fixedly arranged at the other end of the top of the support base (1), a combined door body (4) is arranged at one end of each of the heating furnace (2) and the refrigeration box (3), a plurality of ball guide rails (5) inserted into the heating furnace (2) and the refrigeration box (3) are fixedly arranged at the top of the support base (1), a bearing platform (6) is arranged at the top of the ball guide rails (5), a detachable mold sleeve (7) is arranged at the top of the bearing platform (6), and a static pressure mechanism (8) is fixedly arranged at the middle position of one side of the support base (1).

2. A controllable concrete crack manufacturing device according to claim 1, characterized in that: The outer shells of the heating furnace (2) and the refrigeration box (3) are both heat-insulating structures. The combined door body (4) is composed of a heat-insulating door panel (9), an L-shaped bracket (10) and a multi-stage hydraulic telescopic rod (11). The L-shaped bracket (10) is fixedly connected to the middle position of the top of the heat-insulating door panel (9), and the multi-stage hydraulic telescopic rod (11) is respectively connected between the L-shaped bracket (10) and the heating furnace (2) and the refrigeration box (3).

3. A controllable concrete crack manufacturing device according to claim 1, characterized in that: A limit support platform (12) matching the detachable mold sleeve (7) is fixedly provided at the middle position of the top of the support platform (6), a plurality of slide grooves (13) matching the ball guide rail (5) are provided at the bottom end of the support platform (6), and pull rings (14) are fixedly provided at the middle positions of the four sides of the support platform (6).

4. A controllable concrete crack manufacturing device according to claim 1, characterized in that: The static pressure mechanism (8) is composed of a side support plate (15), a suspension beam (16), a hydraulic rod (17), a static pressure assembly (18) and a movable connection seat (19); the side support plate (15) is fixedly connected to one side of the support base (1); the suspension beam (16) is fixedly connected to the top of the side support plate (15); the hydraulic rod (17) is inserted and connected to the suspension beam (16); and the static pressure assembly (18) is rotatably connected to the bottom end of the hydraulic rod (17) through the movable connection seat (19).

5. A controllable concrete crack making device according to claim 4, characterized in that: The static pressure assembly (18) is composed of a shell (20), an adjusting screw (21), a servo motor (22), a first slider (23), a first pressure seat (24), a second slider (25) and a second pressure seat (26); the adjusting screw (21) is rotatably connected to the inside of the shell (20); the servo motor (22) is fixedly connected to one end of the shell (20) and connected to the adjusting screw (21); the first slider (23) and the second slider (25) are respectively slidably connected to the two ends inside the shell (20) and sleeved on the adjusting screw (21); the adjusting screw (21) is a two-stage symmetrical threaded structure; the first pressure seat (24) is inserted into the shell (20) and fixedly connected to the first slider (23); the second pressure seat (26) is inserted into the shell (20) and fixedly connected to the second slider (25).

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