Recycled concrete contractility testing device

Abstract

The utility model discloses a recycled concrete contractility testing device which comprises a placing box, a groove is formed in the upper surface of the bottom end of the placing box, and an ejector plate is arranged in the groove. According to the recycled concrete block testing device, the electric telescopic rod on one side of the inner wall of the connecting frame drives the push plate to move, the connecting rod drives the abutting plate to move while the push plate moves, and when the abutting plate abuts against a recycled concrete block in the containing box, the recycled concrete block can be tested through a testing meter on the surface of one side of the push plate; after the test, the motor drives the gear to rotate, the gear drives the rack to move while rotating, and the rack drives the ejection plate to move while moving, so that the shrinkage of the recycled concrete block can be measured, and the shrinkage of the recycled concrete block can be tested. And the ejection plate moves and drives the recycled concrete block to move at the same time, so that the recycled concrete block can be automatically pushed out of the placement box, and the recycled concrete block after testing can be conveniently taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of recycled concrete testing, in particular to a recycled concrete shrinkage testing device. Background Art

[0002] Recycled concrete refers to new concrete made by crushing, cleaning, and grading discarded concrete blocks, mixing them with grading in a certain proportion, partially or completely replacing natural aggregates such as sand and gravel, and then adding cement, water, etc. The shrinkage properties of recycled concrete made with different proportions are different, and the impact on buildings is also very different. Its shrinkage properties need to be tested before mass production and application in buildings.

[0003] The existing Chinese patent with the announcement number CN216449575U discloses a device for testing the shrinkage of recycled concrete. The above-mentioned existing technical solution has the following defects. Although the above-mentioned technical solution places the recycled concrete blocks in the enclosed space of the placement box, the overall temperature in the placement box is increased so that the recycled concrete blocks are evenly heated, and the heat loss is reduced, the heating efficiency of the recycled concrete blocks is improved, and the energy waste is reduced. The heating temperature of the recycled concrete blocks can also be controlled by the temperature measuring component to improve the detection effect. However, in the above-mentioned technical solution, after the test of the recycled concrete blocks is completed, the recycled concrete blocks are in the placement box, and there is a problem of inconvenience in taking the recycled concrete blocks out of the placement box, which easily affects subsequent use and reduces its practicality. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the deficiencies in the prior art, the present invention provides a recycled concrete shrinkage testing device, which has the advantages of conveniently pushing out the recycled concrete blocks after testing, preventing them from remaining in the placement box, and facilitating subsequent use, thereby solving the problems in the above-mentioned background technology.

[0006] (2) Technical solution

[0007] The top of described supporting plate is hinged on the base plate, is fixed with the support frame, and the support frame is hinged on the base plate, is fixed with a toothed connection portion, and a toothed connection portion is fixed on the support frame.

[0008] Preferably, a limiting rod is provided between the partition and the upper surface of the bottom end of the support seat, and a limiting block is provided through the limiting rod, and the limiting block is fixedly connected to the rack.

[0009] Preferably, the limiting block is slidably connected to the limiting rod.

[0010] Preferably, there are a plurality of connection frames, and the plurality of connection frames are evenly distributed on the four surfaces of the placement box, namely, the front, back, left, and right.

[0011] Preferably, the ejection plate is movably connected to the groove.

[0012] Preferably, the two side surfaces of the support seat are provided with extension plates, and the bottom surfaces of the extension plates are provided with anti-slip grooves.

[0013] Preferably, a sealing cover is provided on the top of the placement box, and handles are provided on both sides of the top surface of the sealing cover.

[0014] Preferably, plug blocks are provided on both sides of the bottom surface of the sealing cover, and one end of the plug block extends to the inside of the slots opened on both sides of the top surface of the placement box.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a device for testing the shrinkage of recycled concrete, which has the following beneficial effects:

[0017] (1) In the present invention, the sealing cover is opened, the recycled concrete block is placed in the placement box, the sealing cover is closed, and the push plate is driven to move by the electric telescopic rod on one side of the inner wall of the connecting frame. When the push plate moves, the abutment plate is driven to move by the connecting rod. When the abutment plate abuts against the recycled concrete block in the placement box, the shrinkage of the recycled concrete block can be measured by using the test table on the surface of one side of the push plate, so that the shrinkage of the recycled concrete block can be tested. After the test, the gear is driven to rotate by the motor, and the gear rotates and drives the rack to move. The rack drives the ejector plate to move while moving, and the ejector plate drives the recycled concrete block to move while moving, so that the recycled concrete block can be automatically pushed out of the placement box, making it convenient to take out the recycled concrete block after the test, so as to facilitate its subsequent normal use.

[0018] (2) In the present invention, the rack can be limited by the use of a limit block and a limit rod, so as to maintain the stability of the rack during the movement, thereby maintaining the stability of the ejection plate during the movement, and conveniently ejecting the tested recycled concrete block from the placement box. By using multiple test tables, electric telescopic rods, push plates, connecting rods and abutment plates, the shrinkage of the recycled concrete block in the front, back, left and right directions can be tested, and the multi-dimensional measurement of the recycled concrete block can be realized, thereby improving the accuracy of the shrinkage test of the recycled concrete block. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of a recycled concrete shrinkage testing device proposed by the utility model;

[0021] Figure 2 This is an enlarged view of A of a recycled concrete shrinkage testing device proposed in the present invention;

[0022] Figure 3 This is a front view of a recycled concrete shrinkage testing device proposed by the utility model;

[0023] Figure 4 The utility model discloses a schematic diagram of the ejector plate structure of a recycled concrete shrinkage testing device.

[0024] Legend:

[0025] 1. Placement box; 2. Abutment plate; 3. Connecting rod; 4. Push plate; 5. Electric telescopic rod; 6. Connecting frame; 7. Test table; 8. Groove; 9. Extension plate; 10. Support seat; 11. Partition; 12. Limit rod; 13. Limit block; 14. Rack; 15. Heating plate; 16. Ejector plate; 17. Gear; 18. Motor; 19. Sealing cover; 20. Handle; 21. Insert block; 22. Slot. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance; in addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Please refer to Figure 1-4, a recycled concrete shrinkage testing device, including a placing box 1, a groove 8 is opened on the upper surface of the bottom end of the placing box 1, and an ejector plate 16 is provided in the groove 8, a heating chamber is provided inside the ejector plate 16, and a heating plate 15 is installed in the heating chamber, a support seat 10 is provided on the bottom surface of the placing box 1, and a partition 11 is provided inside the support seat 10, a rack 14 is passed through at the middle position of the top surface of the partition 11, and the top of the rack 14 passes through the bottom surface of the placing box 1 and is fixedly connected to the ejector plate 16, a motor 18 is installed on one side of the front end surface of the support seat 10, and the output end of the motor 18 is fixedly connected to a gear 17, the gear 17 is meshed with the rack 14, a connecting frame 6 is provided around the outer surface of the placing box 1, and an electric telescopic rod 5 is installed on both sides of the inner wall of the connecting frame 6, the output end of the electric telescopic rod 5 is fixedly connected to a push plate 4, and one side surface of the push plate 4 passes through the placing box 1 and is provided with a connecting rod 3, one end of the connecting rod 3 is located inside the placing box 1 and is provided with an abutting plate 2, and the other end of the push plate 4 A test table 7 is provided through the connecting frame 6 at the middle position of the side surface, wherein the sealing cover 19 is opened, the recycled concrete block is placed in the placement box 1, the sealing cover 19 is closed, and the push plate 4 is driven to move by the electric telescopic rod 5 on one side of the inner wall of the connecting frame 6. While the push plate 4 moves, the abutment plate 2 is driven to move by the connecting rod 3. When the abutment plate 2 abuts against the recycled concrete block in the placement box 1, the shrinkage of the recycled concrete block can be measured by using the test table 7 on the surface of one side of the push plate 4, thereby testing the shrinkage of the recycled concrete block. After the test, the gear 17 is driven to rotate by the motor 18, and the gear 17 rotates while driving the rack 14 to move. The rack 14 drives the ejector plate 16 to move while moving, and the ejector plate 16 drives the recycled concrete block to move while moving, so that the recycled concrete block can be automatically pushed out of the placement box 1, making it convenient to take out the recycled concrete block after the test, thereby facilitating its subsequent normal use.

[0029] In one embodiment, a limiting rod 12 is provided between the partition 11 and the upper surface of the bottom end of the support seat 10, and a limiting block 13 is passed through the limiting rod 12, and the limiting block 13 is fixedly connected to the rack 14. The rack 14 can be limited by using the limiting block 13 and the limiting rod 12, so as to maintain the stability of the rack 14 during the movement, thereby maintaining the stability of the ejection plate 16 during the movement, and facilitating the ejection of the tested recycled concrete block from the placement box 1.

[0030] In one embodiment, the limiting block 13 is slidably connected to the limiting rod 12 , so that the limiting block 13 can move on the limiting rod 12 , thereby limiting the rack 14 .

[0031] In one embodiment, a plurality of connecting frames 6 are provided, and the plurality of connecting frames 6 are evenly distributed on the four surfaces of the placement box 1. By using the test components in the plurality of connecting frames 6, the shrinkage of the recycled concrete block in the four directions of front, back, left and right can be tested, and the multi-dimensional measurement of the recycled concrete block can be realized, thereby facilitating the improvement of the accuracy of the shrinkage test of the recycled concrete block.

[0032] In one embodiment, the ejection plate 16 is movably connected to the groove 8 to facilitate the movement of the ejection plate 16 .

[0033] In one embodiment, extension plates 9 are provided on both side surfaces of the support seat 10, and anti-slip grooves are provided on the bottom surface of the extension plates 9. The use of the extension plates 9 can increase the contact area between the support seat 10 and the ground, thereby increasing its anti-slip effect and facilitating the maintenance of the stability of the device during use.

[0034] In one embodiment, a sealing cover 19 is provided above the placement box 1 , and handles 20 are provided on both sides of the top surface of the sealing cover 19 . By using the sealing cover 19 , the recycled concrete blocks in the placement box 1 can be tested in a closed environment.

[0035] In one embodiment, plug blocks 21 are provided on both sides of the bottom surface of the sealing cover 19, and one end of the plug block 21 extends to the interior of a slot 22 opened on both sides of the top surface of the placement box 1. By using the plug block 21 and the slot 22, the sealing cover 19 can be limited to facilitate maintaining the stability of the sealing cover 19 in the placement box 1.

[0036] In one embodiment, the control panel control circuit can be implemented through simple programming by those skilled in the art. It is common knowledge in the art and is only used without modification, so the control method and circuit connection will not be described in detail.

[0037] Working principle:

[0038] When in use, open the sealing cover 19, place the recycled concrete block in the placement box 1, close the sealing cover 19, and drive the push plate 4 to move through the electric telescopic rod 5 on one side of the inner wall of the connecting frame 6. While the push plate 4 moves, the abutment plate 2 is driven to move through the connecting rod 3. When the abutment plate 2 abuts against the recycled concrete block in the placement box 1, the shrinkage of the recycled concrete block can be measured by using the test table 7 on the surface of one side of the push plate 4, thereby testing the shrinkage of the recycled concrete block. After the test, the motor 18 drives the gear 17 to rotate, and the gear 17 drives the rack 14 to move while rotating. The rack 14 drives the ejector plate 16 to move while moving, and the ejector plate 16 drives the recycled concrete block to move while moving. The rack 14 can be limited by the limit block 13 and the limit rod 12 to maintain the stability of the rack 14 during movement, thereby facilitating the stability of the ejection plate 16 during movement, and facilitating the ejection of the tested recycled concrete block from the placement box 1. The plurality of test tables 7, the electric telescopic rod 5, the push plate 4, the connecting rod 3 and the abutment plate 2 can be used to detect the shrinkage of the recycled concrete block in the front, back, left and right directions, thereby realizing multi-dimensional measurement of the recycled concrete block, thereby improving the accuracy of the shrinkage test of the recycled concrete block.

[0039] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A recycled concrete shrinkage testing device, comprising a placement box (1), characterized in that: The bottom upper surface of the placement box (1) is provided with a groove (8), and an ejection plate (16) is provided in the groove (8), a heating chamber is provided inside the ejection plate (16), and a heating plate (15) is installed in the heating chamber, the bottom surface of the placement box (1) is provided with a support seat (10), and a partition (11) is provided inside the support seat (10), a rack (14) is provided through the middle position of the top surface of the partition (11), and the top end of the rack (14) passes through the bottom surface of the placement box (1) and is fixedly connected to the ejection plate (16), and a motor (18) is installed on one side of the front end surface of the support seat (10). The output end of the motor (18) is fixedly connected to a gear (17), and the gear (17) is meshed with the rack (14). A connecting frame (6) is provided around the outer surface of the placement box (1), and electric telescopic rods (5) are installed on both sides of the inner wall of the connecting frame (6). The output end of the electric telescopic rod (5) is fixedly connected to a push plate (4), and a connecting rod (3) is provided on one side surface of the push plate (4) passing through the placement box (1). One end of the connecting rod (3) is located inside the placement box (1) and is provided with an abutment plate (2). A test table (7) is provided at the middle position of the other side surface of the push plate (4) passing through the connecting frame (6).

2. A recycled concrete shrinkage testing device according to claim 1, characterized in that: A limiting rod (12) is provided between the partition (11) and the upper surface of the bottom end of the support seat (10), and a limiting block (13) is provided through the limiting rod (12), and the limiting block (13) is fixedly connected to the rack (14).

3. A recycled concrete shrinkage testing device according to claim 2, characterized in that: The limiting block (13) is slidably connected to the limiting rod (12).

4. A recycled concrete shrinkage testing device according to claim 1, characterized in that: There are a plurality of connection frames (6), and the plurality of connection frames (6) are evenly distributed on the four surfaces of the placement box (1), namely, the front, back, left, and right.

5. The recycled concrete shrinkage testing device according to claim 1, characterized in that: The ejection plate (16) is movably connected to the groove (8).

6. The recycled concrete shrinkage testing device according to claim 1, characterized in that: Extension plates (9) are provided on both side surfaces of the support seat (10), and anti-slip grooves are provided on the bottom surface of the extension plates (9).

7. The recycled concrete shrinkage testing device according to claim 1, characterized in that: A sealing cover (19) is provided above the placement box (1), and handles (20) are provided on both sides of the top surface of the sealing cover (19).

8. The recycled concrete shrinkage testing device according to claim 7, characterized in that: Insert blocks (21) are provided on both sides of the bottom surface of the sealing cover (19), and one end of the insert block (21) extends to the inside of a slot (22) opened on both sides of the top surface of the placement box (1).

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