Concrete crack resistance detection device

Abstract

The utility model relates to the technical field of concrete detection, in particular to a concrete crack resistance detection device which comprises a bottom plate, two side plates are fixedly connected to the bottom plate, two mounting plates are mounted between the two side plates through fixing structures, and a plurality of knife edges are mounted between the two mounting plates through mounting structures. A row of inserting rods are connected to the two mounting plates in a sliding mode, one row of inserting rods are connected with one ends of the corresponding knife edges in an inserted mode, the other row of inserting rods are connected with the other ends of the corresponding knife edges in an inserted mode, the inserting rods in the same row are fixedly connected with the same pulling plate, second guide rods are fixedly connected to the mounting plates, and the pulling plate is connected to the second guide rods in a sliding mode; a second spring is fixedly connected between the pulling plate and the second guide rod; the multiple insertion rods slidably connected to the two mounting plates are connected with the two ends of the knife edge in an inserted mode, so that the knife edge is convenient to mount and dismount, time is saved during operation, and meanwhile the detection device is more flexible to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to a detection device, concretely to a concrete anti -cracking detection device belongs to concrete detection technical field. BACKGROUND

[0002] Concrete early anti -cracking test is mainly used to evaluate the ability of concrete in early stage to resist cracking, and the common has the early cracking detection device of restriction of the blade, and it is mainly composed of steel mould, stress induction generator, fan etc., the mould is used to form concrete time, and the stress induction generator is installed in the mould, and the stress is generated in the interior of concrete, and the emergence of crack is accelerated, and the fan is used to control the wind speed of test piece surface, simulates the environmental condition in actual engineering, through this device, the early anti -cracking performance of concrete can be tested under laboratory conditions, and the basis is provided for concrete mix proportion design and construction process optimization, and the common stress induction generator and the blade, and the operation makes the blade parallelly laid in the mould, and the equivalent constraint is formed to concrete time through the blade.

[0003] However, the blade in the traditional early concrete anti -cracking detection device is usually installed in the mould through the welding mode or is fixed in the mould through bolt one by one, so that the blade installation and disassembly are not flexible and convenient, and the installation is time -consuming and labor -intensive, and the operation is relatively slow. UTILITY MODEL CONTENTS

[0004] The utility model discloses a concrete anti -cracking detection device, and the two ends of the blade are inserted to the two installation plates through a plurality of insertion rods slidably connected on the two installation plates, so that the blade installation and disassembly are convenient, and time is saved during operation, and the detection device is more flexible.

[0005] The utility model discloses a concrete anti -cracking detection device through the following technical scheme, including the bottom plate, the bottom plate is fixedly connected with two side plates, and two the side plate is installed through the fixed structure and has two installation plates, and a plurality of blades are installed through the mounting structure between two The installation plate, the mounting structure includes two rows of insertion rods, and one row of insertion rod is slidably connected on two The installation plate, and one end of the corresponding blade is inserted to one row The insertion rod, and the other end of the corresponding blade is inserted to another row The insertion rod, and the same row The insertion rod is fixedly connected with the same pull plate, and the installation plate is fixedly connected with the second guide rod, and the pull plate is slidably connected on the second guide rod, and the second spring is fixedly connected between the pull plate and the second guide rod.

[0006] Preferably, two The installation plate is symmetrically distributed, and the insertion rod is perpendicular to the installation plate.

[0007] Preferably, the second guide rod is in a "T" shape structure, and the second spring is sleeved outside the second guide rod.

[0008] Preferably, a screw rod is rotatably connected to the pull plate, and the end of the screw rod is threadedly connected to the mounting plate.

[0009] Preferably, a plurality of first sealing rings are mounted on the mounting plate, a plurality of the insertion rods are slidably connected to the corresponding first sealing rings, second sealing rings are mounted on both ends of the knife edges, and the insertion rods are slidably connected to the second sealing rings.

[0010] Preferably, the fixing structure comprises a protrusion, the two sides of the side plate are fixedly connected with the protrusions, and the protrusions are inserted into the corresponding mounting plates.

[0011] Preferably, a clamping block is slidably connected to the protrusion, both ends of the mounting plate are provided with clamping grooves, and the clamping block is clamped into the corresponding clamping groove.

[0012] Preferably, a first guide rod is fixedly connected to the protrusion, the clamping block is slidably connected to the first guide rod, a first spring is sleeved outside the first guide rod, one end of the first spring is fixedly connected to the protrusion, and the other end of the first spring is fixedly connected to the clamping block.

[0013] Preferably, the clamping block is in an "L" shape structure, and a hexagonal groove is formed in the clamping block.

[0014] Preferably, first sealing pads are mounted on both ends of the mounting plate, the first sealing pads abut against the protrusions, a second sealing pad is mounted on the bottom end of the mounting plate, the second sealing pad abuts against the bottom plate, and an isolation layer is mounted on the top end of the bottom plate.

[0015] The utility model discloses a beneficial effect is: the bottom plate is fixedly connected with two side plates, two side plates are installed with two mounting plates through the fixed structure between two side plates, a plurality of knife edges are installed between two mounting plates through the mounting structure, a row of insertion rods are slidably connected to two mounting plates, one end of one row of insertion rods is inserted into the corresponding knife edge, the other end of another row of insertion rods is inserted into the corresponding knife edge, the same row of insertion rods are fixedly connected with the same pull plate, the second guide rod is fixedly connected to the mounting plate, the pull plate is slidably connected to the second guide rod, and the second spring is fixedly connected between the pull plate and the second guide rod, a plurality of insertion rods are inserted into both ends of the knife edge through the two mounting plates, and a plurality of insertion rods of the same row are slidably moved to the outside of the mounting plate through the pull plate, the pull plate abuts against the second spring and contracts, when the knife edge is placed on the corresponding position on the top end of the bottom plate, the pull plate is loosened, the second spring resets and pushes the plurality of insertion rods of the same row and the knife edge through the pull plate, so that the knife edge is fixed quickly, the knife edge is convenient to install and disassemble, time is saved during operation, and the detection device is more flexible to use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the A part enlarged structure schematic diagram shown in the figure; Figure 1

[0018] Figure 3 It is the B part enlarged structure schematic diagram shown in the figure; Figure 1

[0019] Figure 4 It is the connection structure schematic diagram of the utility model's plug rod and cutter lip;

[0020] Figure 5 It is the C part enlarged structure schematic diagram shown in the figure; Figure 4

[0021] Figure 6 It is the connection structure schematic diagram of the utility model's convex block and mounting plate;

[0022] Figure 7 It is the D part enlarged structure schematic diagram shown in the figure. Figure 6

[0023] In the figure: 1, bottom plate; 2, side plate; 3, fixed structure; 301, convex block; 302, clamping block; 303, clamping groove; 304, first spring; 305, first guide rod; 306, recess; 4, mounting plate; 5, mounting structure; 501, pull plate; 502, plug rod; 503, second guide rod; 504, second spring; 505, screw rod; 506, first sealing ring; 507, second sealing ring; 6, cutter lip; 7, first sealing pad; 8, isolation layer; 9, second sealing pad. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-7 ​​​​As shown in the drawing, a concrete crack detection device, including a bottom plate 1, the bottom plate 1 is fixedly connected with two side plates 2, two said side plate 2 between the installation of two mounting plate 4 through the fixed structure 3, two said mounting plate 4 between the installation of a plurality of knife mouth 6 through the installation structure 5, the installation structure 5 includes two rows of plug rod 502, two said mounting plate 4 on the sliding connection has a row of plug rod 502, one of said plug rod 502 and the corresponding knife mouth 6 one end of the joint, another row of said plug rod 502 and the corresponding knife mouth 6 the other end of the joint, the same row of said plug rod 502 on the fixed connection has the same pull plate 501, the mounting plate 4 on the fixed connection has the second guide rod 503, the pull plate 501 is slidingly connected to the second guide rod 503, the pull plate 501 and the second guide rod 503 are fixedly connected with the second spring 504, two said mounting plate 4 is symmetrical distribution, the plug rod 502 and mounting plate 4 perpendicular.

[0026] As a technical optimization scheme of the utility model, the second guide rod 503 is in the form of T-shaped structure, and the second spring 504 is sleeved outside the second guide rod 503; the second guide rod 503 is arranged to prevent the pull plate 501 from driving the plug rod 502 to slide off the mounting plate 4, thereby increasing the stability of the pull plate 501 and the plug rod 502.

[0027] As a technical optimization scheme of the utility model, the pull plate 501 is rotatably connected with a screw rod 505, and the end of the screw rod 505 is threadedly connected with the mounting plate 4; the screw rod 505 is rotated, the end of the screw rod 505 is threadedly connected with the mounting plate 4, the end of the screw rod 505 abuts against the pull plate 501, and the stability of the plug rod 502 is increased.

[0028] As a technical optimization scheme of the utility model, the mounting plate 4 is provided with a plurality of first sealing rings 506, a plurality of plug rods 502 are slidingly connected with corresponding first sealing rings 506, both ends of the knife mouth 6 are provided with second sealing rings 507, and the plug rod 502 is slidingly connected with the second sealing ring 507; the first sealing ring 506 and the second sealing ring 507 are arranged to increase the sealing property of the mold, so that the concrete is prevented from entering the insertion hole of the knife mouth 6 and the insertion hole of the mounting plate 4.

[0029] As a technical optimization scheme of the utility model, the fixed structure 3 includes the protruding block 301, both sides of the side plate 2 are fixedly connected with the protruding block 301, the protruding block 301 is inserted with the corresponding mounting plate 4, the protruding block 301 is slidably connected with the clamping block 302, both ends of the mounting plate 4 are provided with the clamping groove 303, the clamping block 302 is clamped with the corresponding clamping groove 303, the protruding block 301 is fixedly connected with the first guide rod 305, the clamping block 302 is slidably connected with the first guide rod 305, the first guide rod 305 is externally provided with the first spring 304, one end of the first spring 304 is fixedly connected with the protruding block 301, the other end of the first spring 304 is fixedly connected with the clamping block 302;When the mounting plate 4 needs to be installed, the both ends of the mounting plate 4 are respectively aligned with the adjacent two protruding blocks 301, then the mounting plate 4 is pushed to the middle of the bottom plate 1, at this time, the mounting plate 4 abuts against the clamping block 302 and slides to the inside of the protruding block 301, at the same time, the clamping block 302 abuts against the first spring 304 and shrinks, when the clamping block 302 is aligned with the clamping groove 303 on the mounting plate 4, the first spring 304 resets and drives the clamping block 302 to be clamped into the clamping groove 303, so that the both ends of the mounting plate 4 are inserted with the adjacent protruding blocks 301, and then the mounting plate 4 is installed on the bottom plate 1, the mounting plate 4 is facilitated to be installed and disassembled through the fixed structure 3, and when the number of the knife edges 6 increases or decreases, the detection device can be flexibly adjusted by replacing the mounting plate 4 provided with the jack hole matched with the number of the required knife edges 6.

[0030] As a technical optimization scheme of the utility model, the cross section of the clamping block 302 is "L" shaped structure, the recess 306 in hexagonal structure is formed in the clamping block 302;When the mounting plate 4 needs to be disassembled, the hexagonal wrench is inserted into the recess 306, then the clamping block 302 is pushed upwards, so that the clamping block 302 is no longer clamped with the clamping groove 303, thereby releasing the limiting of the mounting plate 4, and then the mounting plate 4 is facilitated to be disassembled.

[0031] As a technical optimization scheme of the utility model, both ends of the mounting plate 4 are provided with the first sealing gasket 7, the first sealing gasket 7 is in contact with the convex block 301, the bottom end of the mounting plate 4 is provided with the second sealing gasket 9, the second sealing gasket 9 is in contact with the bottom plate 1, and the top end of the bottom plate 1 is provided with the isolation layer 8;Both ends of the mounting plate 4 are provided with the first sealing gasket 7, when the mounting plate 4 is inserted with the convex block 301, the first sealing gasket 7 is in contact with the convex block 301, so that the sealing condition between the convex block 301 and the mounting plate 4 is formed, the bottom end of the mounting plate 4 is provided with the second sealing gasket 9, after the mounting plate 4 is installed, the second sealing gasket 9 is in contact with the bottom plate 1, so that the bottom plate 1 and the mounting plate 4 are sealed, the sealing property of the mould is increased through the first sealing gasket 7 and the second sealing gasket 9, concrete is prevented from entering the gap between the mounting plate 4 and the convex block 301 and the bottom plate 1, so that the concrete stripping difficulty is caused, then the isolation layer 8 is laid on the top surface of the bottom plate 1, so as to prevent the concrete from adhering to the bottom plate 1, and the concrete test piece is facilitated to be stripped after the experiment is finished.

[0032] The utility model discloses when using, first when needing to install mounting plate 4, the both ends of mounting plate 4 are respectively aligned with two adjacent protruding blocks 301, then push mounting plate 4 to the middle part of bottom plate 1, at this moment, mounting plate 4 is in contact with the block 302 and slides to the inside of protruding block 301, and the block 302 is in contact with the first spring 304 and contracts, when the block 302 is aligned with the card slot 303 on mounting plate 4, the first spring 304 resets and drives the block 302 to be engaged into the card slot 303, thereby making the both ends of mounting plate 4 are inserted with adjacent protruding block 301, and then make mounting plate 4 install on bottom plate 1, through fixed structure 3 makes mounting plate 4 installation and dismantling are convenient, and when the number of knife edge 6 has increase and decrease, can through replacing the mounting plate 4 that is provided with the jack of matching with the number of required knife edge 6 to adjust the detection device flexibly, the block 302 and the first guide rod 305 between sliding have the guiding effect to the block 302, make the block 302 slide more stable, when needing to dismantle mounting plate 4, using hexagonal spanner is inserted into recess 306, then push the block 302 upwards, make the block 302 not be engaged with the card slot 303, thereby release the limiting of mounting plate 4, and then make mounting plate 4 dismantle convenient, the both ends of mounting plate 4 are installed with the first sealing washer 7, when mounting plate 4 is inserted with protruding block 301, the first sealing washer 7 is in contact with protruding block 301, make the sealing condition between protruding block 301 and mounting plate 4, the bottom end of mounting plate 4 is installed with the second sealing washer 9, when mounting plate 4 installs, the second sealing washer 9 is in contact with bottom plate 1, make the sealing between bottom plate 1 and mounting plate 4, through the first sealing washer 7 and the second sealing washer 9 increase the sealing property of mould, avoid the concrete into the gap between mounting plate 4 and protruding block 301, bottom plate 1, then lay the isolation layer 8 on the top surface of bottom plate 1, to prevent the concrete and bottom plate 1 from sticking, facilitate the demoulding of concrete test piece after experiment, when installing knife edge 6, pull one of the pull plate 501, and the pull plate 501 drives the plurality of insertion rod 502 to slide to the outside of mounting plate 4, and the pull plate 501 is in contact with the second spring 504 and contracts, then place the plurality of knife edge 6 in the mould in proper order, make one end of knife edge 6 and the insertion rod 502 on another pull plate 501 insert, then release the pull plate 501 that has been pulled outwards, the second spring 504 resets and pushes the plurality of insertion rod 502 and the other end of knife edge 6 through the pull plate 501 and inserts, then rotate the screw rod 505, make the end of screw rod 505 and mounting plate 4 screw connection, make the end of screw rod 505 and pull plate 501 abut tightly, increase the stability of insertion rod 502, through the both ends of two rows of insertion rod 502 and knife edge 6 and insert fasten knife edge 6, make knife edge 6 installation and dismantle convenient, save time when operating, and make the detection device use more flexible, the setting of first sealing ring 506 and second sealing ring 507 increase the sealing property of mould, avoid the concrete into the jack of knife edge 6 and the jack of mounting plate 4.Then the mold is bolted on the flat surface vibrator, and then the concrete is poured into the mold, and the vibrator is used to fill the mold with concrete, and after vibrating, the concrete surface is leveled with a trowel, so that the aggregate is not exposed, and the concrete test piece surface is smooth, so as to observe the subsequent crack, then the concrete surface is covered with a film, and a fan is used to blow the test piece surface, with the drying shrinkage of the concrete test piece, due to the geometric shape mutation at the knife edge 6, the stress distribution in the concrete is uneven, in the knife edge 6 area, the stress is highly concentrated, when the concentrated stress exceeds the tensile strength of the concrete, the crack is induced at the position of the knife edge 6, and then the concrete is cracked, so as to detect the early crack resistance and other related indexes of the concrete.

[0033] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0034] In addition, it should be understood that although the present application is described in the specification, each embodiment does not contain only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments which can be understood by those skilled in the art.

Claims

1. A device for detecting the resistance of concrete to cracking, comprising a base plate (1), characterised in that: The bottom plate (1) is fixedly connected with two side plates (2), two mounting plates (4) are installed between the two side plates (2) through a fixing structure (3), a plurality of knife edges (6) are installed between the two mounting plates (4) through a mounting structure (5), the mounting structure (5) comprises two rows of insertion rods (502), one row of insertion rods (502) is slidably connected to each of the two mounting plates (4), one end of the insertion rod (502) in one row is inserted into a corresponding knife edge (6), the other end of the insertion rod (502) in one row is inserted into a corresponding knife edge (6), the same row of insertion rods (502) are fixedly connected with the same pull plate (501), a second guide rod (503) is fixedly connected to the mounting plate (4), the pull plate (501) is slidably connected to the second guide rod (503), and a second spring (504) is fixedly connected between the pull plate (501) and the second guide rod (503).

2. The concrete crack resistance detection device according to claim 1, characterized in that: The two mounting plates (4) are symmetrically distributed, and the insertion rod (502) is perpendicular to the mounting plate (4).

3. The concrete crack resistance detection device according to claim 1, characterized in that: The second guide rod (503) has a "T" shaped structure, and the second spring (504) is sleeved outside the second guide rod (503).

4. The concrete crack resistance detection device according to claim 1, characterized in that: The pull plate (501) is rotatably connected with a screw rod (505), and the end of the screw rod (505) is threadedly connected with the mounting plate (4).

5. The concrete crack resistance detection device according to claim 4, characterized in that: A plurality of first sealing rings (506) are mounted on the mounting plate (4), a plurality of the insertion rods (502) are slidably connected with corresponding first sealing rings (506), and second sealing rings (507) are mounted at both ends of the knife edge (6) and slidably connected with the insertion rod (502).

6. The concrete crack detection apparatus of claim 1, wherein: The fixing structure (3) comprises a protrusion (301), the two sides of the side plate (2) are fixedly connected with the protrusion (301), and the protrusion (301) is inserted into a corresponding mounting plate (4).

7. The concrete crack resistance detection device according to claim 6, characterized in that: The protrusion (301) is slidably connected with a clamping block (302), both ends of the mounting plate (4) are provided with a clamping groove (303), and the clamping block (302) is clamped in the corresponding clamping groove (303).

8. The concrete crack resistance detection device according to claim 7, characterized in that: The protrusion (301) is fixedly connected with a first guide rod (305), the clamping block (302) is slidably connected with the first guide rod (305), a first spring (304) is sleeved outside the first guide rod (305), one end of the first spring (304) is fixedly connected with the protrusion (301), and the other end of the first spring (304) is fixedly connected with the clamping block (302).

9. The concrete crack resistance detection device according to claim 8, characterized in that: The clamping block (302) has an "L" shaped structure, and a recess (306) with a hexagonal structure is formed in the clamping block (302).

10. The concrete crack detection apparatus of claim 1, wherein: First sealing gaskets (7) are mounted at both ends of the mounting plate (4) and abut against the protrusion (301), a second sealing gasket (9) is mounted at the bottom end of the mounting plate (4) and abuts against the bottom plate (1), and an isolation layer (8) is mounted at the top end of the bottom plate (1).

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