CN218330962U

CN218330962U - Concrete anti-cracking performance test device

Info

Publication number: CN218330962U
Application number: CN202221978002.4U
Authority: CN
Inventors: 于浩; 赵建林
Original assignee: Foster Huai'an Building Materials Technology Co ltd
Current assignee: Foster Huai'an Building Materials Technology Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2023-01-17
Anticipated expiration: 2032-07-28

Abstract

The utility model relates to the technical field of concrete crack resistance tests, and a concrete crack resistance test device is disclosed, the problem that the existing concrete crack resistance test device is inconvenient to achieve more accurate test effect is solved, the concrete crack resistance test device comprises a support frame, a stretching mechanism is arranged in the support frame, clamping components are symmetrically arranged above the support frame, and the two clamping components are connected with the stretching mechanism; the utility model discloses, can be at the in-process that uses, be convenient for better carry out anti performance test operation to the concrete, ensured to reach more accurate experimental effect.

Description

Concrete anti-cracking performance test device

Technical Field

The utility model belongs to the technical field of the concrete crack resistance test specifically is a concrete crack resistance test device.

Background

The concrete is one of the most important civil engineering materials in the present generation, the concrete needs to be subjected to a crack resistance test in the use process, the crack resistance of the concrete refers to the crack resistance of the concrete, and factors influencing the crack resistance of the concrete material mainly comprise concrete ultimate tensile strength, elastic modulus, creep deformation, self-generated volume deformation, hydration heat temperature rise, linear expansion coefficient, shrinkage deformation and the like.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a concrete anti-cracking performance test device, the effectual current concrete anti-cracking performance test device of having solved is not convenient for reach the problem of more accurate experimental effect.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a concrete crack resistance test device, including the carriage, the internally mounted of carriage has stretching mechanism, clamping component is installed to the top symmetry of carriage, and two clamping component all are connected with stretching mechanism, stretching mechanism includes the installing frame, and installing frame fixed mounting is in the inside bottom of carriage, the inside fixed mounting of installing frame has the biax motor, and all install the threaded rod on the output shaft of the both ends of biax motor, and the screw thread opposite direction on two threaded rods, the one end that biax motor was kept away from to two threaded rods all runs through in the installing frame and is connected with the inner wall rotation of carriage, the both sides of installing frame just are located the threaded rod and install the screw thread movable sleeve, first connecting block is installed at the top of screw thread movable sleeve, install pressure sensor on the first connecting block, pressure sensor keeps away from a side of first connecting block and installs the second connecting block, and clamping component fixed connection.

Preferably, T-shaped blocks are mounted at the top ends of the two side edges of the mounting frame, and one side edge of each T-shaped block, which is far away from the mounting frame, is in contact with the first connecting block.

Preferably, the bottom of the threaded movable sleeve is provided with a positioning sliding sleeve, the positioning sliding sleeve is provided with a first positioning sliding rod in a sliding manner, one end of the first positioning sliding rod is fixedly connected with the mounting frame, and the other end of the first positioning sliding rod is fixedly connected with the inner wall of the supporting frame.

Preferably, a second positioning slide rod is symmetrically installed on one side edge, away from the pressure sensor, of the second connecting block, the second positioning slide rod is slidably installed on the supporting frame, and a limit stop is installed at one end, away from the second connecting block, of the second positioning slide rod.

Preferably, clamping component includes L type frame, and the bottom of L type frame and the top fixed connection of second connecting block, the bar spout has been seted up on the L type frame, the inside slip joint of bar spout has sliding connection piece, movable clamp plate is installed to one side of sliding connection piece, cusp antiskid ribbed tile is all installed to movable clamp plate's bottom and the inside bottom of L type frame, sliding connection piece keeps away from one side of movable clamp plate and installs the movable block, the locating piece is installed to the below of movable block, install the screw thread seat on the locating piece, install adjusting bolt on the movable block, and adjusting bolt's bottom runs through in the screw thread seat and extends to the below of locating piece, circular bottom block is installed to adjusting bolt's bottom.

Preferably, a third positioning slide rod is fixedly mounted inside the strip-shaped sliding groove, and the sliding connection block is slidably mounted on the third positioning slide rod.

Preferably, square openings are symmetrically formed in the outer side edge of the supporting frame, a control switch is arranged between the two square openings and located on the outer side edge of the supporting frame, a display screen is arranged at the top of the control switch, and the pressure sensor is electrically connected with the display screen.

Compared with the prior art, the beneficial effects of the utility model are that:

1) During work, through the interaction of the supporting frame, the stretching mechanism and the clamping assembly, the concrete can be better subjected to crack resistance test operation in the using process, and the accurate test effect can be ensured;

2) In the work, through the locating slide sleeve and the first locating slide bar that set up and second locating slide bar, can make screw thread movable sleeve and second connecting block all reach better stability when removing respectively to can ensure that tension mechanism stably carries out work, thereby be convenient for can be better test operation.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of a testing device of the present invention;

fig. 2 is a schematic structural view of the stretching mechanism of the present invention;

fig. 3 is a schematic structural view of the clamping assembly of the present invention.

In the figure: 1. a support frame; 2. a stretching mechanism; 3. a clamping assembly; 4. installing a frame; 5. a dual-axis motor; 6. a threaded rod; 7. a threaded movable sleeve; 8. a first connection block; 9. a pressure sensor; 10. a second connecting block; 11. a T-shaped block; 12. positioning the sliding sleeve; 13. a first positioning slide bar; 14. a second positioning slide bar; 15. a limit stop block; 16. an L-shaped frame; 17. a strip-shaped chute; 18. a sliding connection block; 19. a movable splint; 20. a toothed antiskid plate; 21. a movable block; 22. positioning a block; 23. a threaded seat; 24. adjusting the bolt; 25. a circular bottom block; 26. a third positioning slide bar; 27. a square opening; 28. a control switch; 29. and a display screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the first embodiment, as shown in fig. 1, 2 and 3, the present invention includes a supporting frame 1, a stretching mechanism 2 is installed inside the supporting frame 1, clamping assemblies 3 are symmetrically installed above the supporting frame 1, and both clamping assemblies 3 are connected to the stretching mechanism 2;

the stretching mechanism 2 comprises a mounting frame 4, the mounting frame 4 is fixedly mounted at the bottom end of the inner part of the supporting frame 1, a double-shaft motor 5 is fixedly mounted in the mounting frame 4, threaded rods 6 are respectively arranged on output shafts at two ends of the double-shaft motor 5, the directions of the threads on the two threaded rods 6 are opposite, one ends of the two threaded rods 6 far away from the double-shaft motor 5 penetrate through the mounting frame 4 and are rotationally connected with the inner wall of the supporting frame 1, threaded movable sleeves 7 are respectively arranged on two sides of the mounting frame 4 and positioned on the threaded rods 6 in a threaded manner, a positioning sliding sleeve 12 is arranged at the bottom of each threaded movable sleeve 7, a first positioning sliding rod 13 is slidably arranged on each positioning sliding sleeve 12, one end of a first positioning slide rod 13 is fixedly connected with the mounting frame 4, the other end of the first positioning slide rod 13 is fixedly connected with the inner wall of the supporting frame 1, a first connecting block 8 is installed at the top of the threaded movable sleeve 7, a pressure sensor 9 is installed on the first connecting block 8, a second connecting block 10 is installed at one side edge of the pressure sensor 9 far away from the first connecting block 8, and the second connecting block 10 is fixedly connected with the clamping component 3, a second positioning slide rod 14 is symmetrically arranged on one side edge of the second connecting block 10 far away from the pressure sensor 9, and the second positioning slide bar 14 is slidably mounted on the supporting frame 1, one end of the second positioning slide bar 14 far away from the second connecting block 10 is provided with a limit stop 15, the top ends of two side edges of the mounting frame 4 are provided with T-shaped blocks 11, one side edge of the T-shaped block 11, which is far away from the mounting frame 4, is in contact with the first connecting block 8, square openings 27 are symmetrically formed in the outer side edge of the supporting frame 1, a control switch 28 is arranged between the two square openings 27 and on the outer side edge of the supporting frame 1, a display screen 29 is arranged at the top of the control switch 28, and the pressure sensor 9 is electrically connected with the display screen 29;

the clamping assembly 3 comprises an L-shaped frame 16, the bottom of the L-shaped frame 16 is fixedly connected with the top of the second connecting block 10, a bar-shaped sliding groove 17 is formed in the L-shaped frame 16, a sliding connecting block 18 is slidably clamped in the bar-shaped sliding groove 17, a third positioning sliding rod 26 is fixedly mounted in the bar-shaped sliding groove 17, the sliding connecting block 18 is slidably mounted on the third positioning sliding rod 26, a movable clamping plate 19 is mounted on one side of the sliding connecting block 18, toothed anti-skidding plates 20 are mounted at the bottom of the movable clamping plate 19 and the bottom end of the L-shaped frame 16, a movable block 21 is mounted on one side of the sliding connecting block 18, which is far away from the movable clamping plate 19, a positioning block 22 is mounted below the movable block 21, a threaded seat 23 is mounted on the positioning block 22, an adjusting bolt 24 is mounted on the movable block 21, the bottom end of the adjusting bolt 24 penetrates through the threaded seat 23 and extends to the lower side of the positioning block 22, and a circular bottom block 25 is mounted at the bottom of the adjusting bolt 24;

in use, through the carriage 1 that sets up, the interact of tension mechanism 2 and clamping component 3, can be at the in-process that uses, be convenient for better carry out anti-crack performance test operation to the concrete, ensured to reach more accurate experimental effect, and through the location sliding sleeve 12 and the first location slide bar 13 that set up, and second location slide bar 14, can make respectively that screw thread movable sleeve 7 and second connecting block 10 all reach better stability when removing, so that can ensure that tension mechanism 2 stably works, thereby be convenient for can be better carry out test operation.

The working principle is as follows: during operation, a concrete test piece to be tested is firstly placed between two L-shaped frames 16, then an adjusting bolt 24 is rotated, under the action of a threaded seat 23, the adjusting bolt 24 rotates and moves downwards, the adjusting bolt 24 drives a movable block 21 to move downwards, the movable block 21 drives a sliding connecting block 18 to move downwards on a third positioning slide bar 26 in a strip-shaped chute 17, the sliding connecting block 18 drives a movable clamping plate 19 to move downwards, the two ends of the concrete test piece are respectively positioned and clamped, then a double-shaft motor 5 is started, a threaded rod 6 is driven to rotate, the threaded rod 6 drives a threaded movable sleeve 7 to move, the threaded movable sleeve 7 drives a positioning sliding sleeve 12 to slide on a first positioning slide bar 13, the threaded movable sleeve 7 can be ensured to achieve better stability during movement, meanwhile, the threaded movable sleeve 7 drives a first connecting block 8 to move, the first connecting block 8 is separated from a T-shaped block 11, meanwhile, the first connecting block 8 drives a pressure sensor 9 to move, the pressure sensor 9 drives a second connecting block 10 to move, the second connecting block 14 is supported on a support frame 1, the concrete test piece 3, the tensile force of the concrete test piece is ensured, the tensile sensor 9, the tensile sensor component is capable of displaying the tensile force, the tensile force of the tensile test piece, the tensile test piece 3, the tensile test piece, the tensile force, the tensile sensor 9 is displayed by the tensile force, the tensile sensor 9, the tensile sensor component, the tensile sensor 9, more accurate test effect can be achieved.

Claims

1. The utility model provides a concrete crack resistance test device, includes carriage (1), its characterized in that: the utility model discloses a pressure sensor, including carriage (1), clamping unit (3) and two clamping unit (3) all are connected with stretching mechanism (2), stretching mechanism (2) include installing frame (4), and installing frame (4) fixed mounting is in the inside bottom of carriage (1), the inside fixed mounting of installing frame (4) has two axis motor (5), and all install threaded rod (6) on the both ends output shaft of axis motor (5), and the screw direction on two threaded rod (6) is opposite, the one end that two axis motor (5) were kept away from in two threaded rod (6) all runs through in installing frame (4) and is connected with the inner wall rotation of carriage (1), the both sides of installing frame (4) just are located threaded mounting and have screw movable sleeve (7) on threaded rod (6), first connecting block (8) are installed at the top of screw movable sleeve (7), install pressure sensor (9) on first connecting block (8), pressure sensor (9) keep away from a side of first connecting block (8) and install second connecting block (10), and clamping unit (3) fixed connection piece (10).

2. The concrete crack resistance test device of claim 1, characterized in that: t type piece (11) are all installed on the both sides limit top of installing frame (4), and T type piece (11) keep away from a side and the contact of first connecting block (8) of installing frame (4).

3. The concrete crack resistance testing device according to claim 1, characterized in that: the thread movable sleeve is characterized in that a positioning sliding sleeve (12) is installed at the bottom of the thread movable sleeve (7), a first positioning sliding rod (13) is installed on the positioning sliding sleeve (12) in a sliding mode, one end of the first positioning sliding rod (13) is fixedly connected with the installation frame (4), and the other end of the first positioning sliding rod (13) is fixedly connected with the inner wall of the supporting frame (1).

4. The concrete crack resistance test device of claim 1, characterized in that: a second positioning sliding rod (14) is symmetrically installed on one side edge, away from the pressure sensor (9), of the second connecting block (10), the second positioning sliding rod (14) is installed on the supporting frame (1) in a sliding mode, and a limit stop (15) is installed at one end, away from the second connecting block (10), of the second positioning sliding rod (14).

5. The concrete crack resistance test device of claim 4, characterized in that: clamping component (3) include L type frame (16), and the bottom of L type frame (16) and the top fixed connection of second connecting block (10), bar spout (17) have been seted up on L type frame (16), the inside slip joint of bar spout (17) has sliding connection piece (18), movable clamp plate (19) are installed to one side of sliding connection piece (18), cusp antiskid ribbed tile (20) are all installed to the bottom of movable clamp plate (19) and the inside bottom of L type frame (16), movable block (21) are installed to one side that movable clamp plate (19) were kept away from in sliding connection piece (18), locating piece (22) are installed to the below of movable block (21), install screw base (23) on locating piece (22), install adjusting bolt (24) on movable block (21), and the bottom of adjusting bolt (24) runs through in screw base (23) and extend to the below of locating piece (22), circular bottom block (25) are installed to the bottom of adjusting bolt (24).

6. The concrete crack resistance test device of claim 5, characterized in that: a third positioning slide rod (26) is fixedly mounted inside the strip-shaped sliding groove (17), and the sliding connecting block (18) is slidably mounted on the third positioning slide rod (26).

7. The concrete crack resistance test device of claim 1, characterized in that: square opening (27) have been seted up to the outside limit symmetry of carriage (1), and control switch (28) are installed on the outside limit that just is located carriage (1) between two square openings (27), and display screen (29) are installed at the top of control switch (28), and pressure sensor (9) and display screen (29) electric connection.