CN211235281U

CN211235281U - Concrete uniaxial pressure device

Info

Publication number: CN211235281U
Application number: CN201922283275.1U
Authority: CN
Inventors: 柯杨; 杜松林; 谷倩; 田水
Original assignee: Wuhan University of Technology WUT
Current assignee: Wuhan University of Technology WUT
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-08-11
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a concrete unipolar pressure device, the on-line screen storage device comprises a base, the top of base is passed through the bolt fastening and is had the frame, the top center department of frame has telescopic cylinder through the bolt fastening, telescopic cylinder's flexible end passes the frame fastening and is had last pressure sensor, it has the top board to go up pressure sensor's bottom through the bolt fastening, the bottom swing joint of top board has the buffering subassembly, the top center department of base has down pressure sensor through the bolt fastening, down pressure sensor's top has the holding down plate through the bolt fastening, and the bottom of holding down plate corresponds both sides and is connected through the corresponding both ends of shock attenuation post with the base, the top of holding down plate corresponds both sides and has locating component through the bolt fastening. The utility model has novel structure and ingenious design, and can effectively ensure the stability of placing the concrete sample and the accuracy of the position; and has certain buffer function, and can effectively ensure the accuracy of pressure test.

Description

Concrete uniaxial pressure device

Technical Field

The utility model relates to a concrete test technical field specifically is concrete unipolar pressure device.

Background

The concrete uniaxial pressure device is a press machine, is mainly used for testing the compressive strength of building material test blocks such as concrete, cement, high-strength bricks, refractory materials and the like, and can also be used for testing the compressive strength of other non-metallic materials.

But the fixed of when current concrete unipolar pressure device is not convenient for laying the concrete sample and the accuracy of position, also does not have certain buffer function. Therefore, it is necessary to design a concrete uniaxial pressure device.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a concrete unipolar pressure device, the device novel structure thinks about ingeniously, can guarantee the stability that the concrete sample was laid effectively and the accuracy of position, and has certain buffer function, has guaranteed pressure test's accuracy nature effectively.

In order to achieve the above object, the utility model provides a following technical scheme: the concrete uniaxial pressure device comprises a base, wherein a frame is fixed on the top of the base through bolts, a telescopic cylinder is fixed on the center of the top of the frame through bolts, a telescopic end of the telescopic cylinder penetrates through the frame and is fixed with an upper pressure sensor, the bottom of the upper pressure sensor is fixed with an upper pressure plate through bolts, the bottom of the upper pressure sensor is movably connected with a buffer assembly, a lower pressure sensor is fixed on the center of the top of the base through bolts, the top of the lower pressure sensor is fixed with a lower pressure plate through bolts, two corresponding sides of the bottom of the lower pressure plate are connected with two corresponding ends of the base through shock absorption columns, two corresponding sides of the top of the lower pressure plate are fixed with positioning assemblies through bolts, a touch screen is fixed on one side of the frame through bolts, a PLC controller is installed inside the touch screen, and the lower pressure sensor and the upper pressure sensor are both electrically connected with the input end of the PLC controller, the output end of the PLC controller is electrically connected with the touch screen.

Preferably, the buffering subassembly includes stopper, dashpot, buffer beam, buffer spring and buffer board, the dashpot link up the symmetry and sets up the both sides at the top board, the inside sliding connection of dashpot has the buffer beam, the top welded fastening of buffer beam has the stopper, the bottom of buffer beam has the buffer board through welded fastening, cup joint on the buffer beam and be fixed with the buffer spring that is located the inside of dashpot.

Preferably, the positioning assembly comprises a rotating handle, a positioning screw rod, a positioning plate, a positioning head and a threaded hole, the positioning plate is symmetrically installed on two corresponding sides of the top of the lower pressing plate through bolts, the center of the positioning plate is provided with a through threaded hole, the positioning screw rod is fixedly screwed inside the threaded hole, the positioning head is fixedly arranged at the top end of the positioning screw rod through bonding, and the rotating handle is fixedly arranged at the bottom end of the positioning screw rod through bolts.

Preferably, a protective box door is fixed on one side of the frame through a hinge, and a toughened glass observation window is fixed on the protective box door through a bolt.

The utility model has the advantages that:

1. the concrete sample to be tested is fixed on the lower pressure plate through the positioning assembly, the telescopic cylinder works to drive the upper pressure plate to move downwards to enable the upper pressure plate to uniformly apply pressure to the concrete sample, the force applied to the concrete sample by the telescopic cylinder is detected in real time through the arranged lower pressure sensor and the arranged upper pressure sensor, the collected pressure signal is transmitted to the PLC, the pressure signal is displayed on the touch screen after being processed by the PLC, a user can conveniently check the state of the concrete sample according to the pressure condition, and the use convenience is effectively improved;

2. when the upper pressure plate moves downwards, the buffer plate can contact with the concrete test piece before the concrete test piece, the buffer plate is stressed to drive the buffer rod to move in the buffer groove, and finally the buffer spring is stressed and compressed, so that the buffer spring has a good buffer effect under the reverse acting force of the buffer spring, and the concrete test piece is prevented from being damaged due to sudden overlarge stress and the influence on the test accuracy;

3. before the test, the rotating handle can be rotated to drive the positioning screw rod to move in the threaded hole, so that the positioning head is driven to move towards the two sides of the concrete test piece, the concrete test piece is clamped, and the centering and the placement of the concrete test piece are facilitated; during test loading, the positioning head can be optionally removed to take into account the lateral expansion of the concrete specimen under pressure.

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 view of the overall plane structure of the present invention;

FIG. 2 is a schematic plan view of the buffering assembly of the present invention;

FIG. 3 is a schematic plan view of the positioning assembly of the present invention;

fig. 4 is a schematic diagram of the internal structure of the touch screen of the present invention;

reference numbers in the figures: 1. a base; 2. a lower pressing plate; 3. a down force sensor; 4. a buffer plate; 5. a shock-absorbing post; 6. a touch screen; 7. a positioning assembly; 8. an upper pressure plate; 9. a telescopic cylinder; 10. an upper pressure sensor; 11. a buffer assembly; 12. a toughened glass observation window; 13. a protective box door; 14. a limiting block; 15. a buffer tank; 16. a buffer rod; 17. a buffer spring; 18. a handle is rotated; 19. positioning a screw rod; 20. positioning a plate; 21. positioning the head; 22. a threaded hole; 23. a frame; 24. a PLC controller.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying fig. 1-4.

Given by fig. 1-4, the utility model provides the following technical scheme: a concrete uniaxial pressure device comprises a base 1, wherein the top of the base 1 is fixed with a frame 23 through bolts, the top center of the frame 23 is fixed with a telescopic cylinder 9 through bolts, the telescopic end of the telescopic cylinder 9 penetrates through the frame 23 to be fixed with an upper pressure sensor 10, the bottom of the upper pressure sensor 10 is fixed with an upper pressure plate 8 through bolts, the bottom of the upper pressure plate 8 is movably connected with a buffer component 11, the top center of the base 1 is fixed with a lower pressure sensor 3 through bolts, the top of the lower pressure sensor 3 is fixed with a lower pressure plate 2 through bolts, two corresponding sides of the bottom of the lower pressure plate 2 are connected with two corresponding ends of the base 1 through shock absorption columns 5, two corresponding sides of the top of the lower pressure plate 2 are fixed with positioning components 7 through bolts, one side of the frame 23 is fixed with a touch screen 6 through bolts, a PLC controller 24 is installed inside the touch screen 6, and the lower pressure sensor 3 and the upper pressure sensor 10 are both electrically connected with the input, output electric connection touch screen 6 of PLC controller 24, the concrete test piece that will test passes through locating component 7 to be fixed on holding down plate 2, telescopic cylinder 9 work, drive top board 8 downstream, make its even applied pressure to the concrete test piece, the power of applying to the concrete test piece is detected telescopic cylinder 9 in real time through the lower pressure sensor 3 that sets up and upper pressure sensor 10, and transmit the pressure signal who collects to PLC controller 24, PLC controller 24 handles the back and shows on touch screen 6, convenient to use person looks over the concrete test piece state according to the pressure condition, the effectual convenience that has promoted the use.

Buffer unit 11 includes stopper 14, dashpot 15, buffer beam 16, buffer spring 17 and buffer board 4, dashpot 15 link up the symmetry and sets up the both sides at last clamp plate 8, the inside sliding connection of dashpot 15 has buffer beam 16, buffer beam 16's top welded fastening has stopper 14, buffer beam 16's bottom has buffer board 4 through welded fastening, it is fixed with the buffer spring 17 that is located dashpot 15 inside to cup joint on the buffer beam 16, in-process when the 8 downstream of upper plate, buffer board 4 can be prior to the concrete test piece contact, buffer board 4 atress drives buffer beam 16 at the inside motion of dashpot 15, finally drive buffer spring 17 atress compression, under buffer spring 17's reverse acting force, make it have good cushioning effect, avoid the concrete test piece to receive the too big damage suddenly, influence the accuracy of test.

The positioning component 7 comprises a rotating handle 18, a positioning screw rod 19, a positioning plate 20, a positioning head 21 and threaded holes 22, the positioning plate 20 is symmetrically installed at two corresponding sides of the top of the lower pressing plate 2 through bolts, the center of the positioning plate 20 is provided with the threaded holes 22, the positioning screw rod 19 is fixedly screwed inside the threaded holes 22, the positioning head 21 is fixedly bonded at the top end of the positioning screw rod 19, the rotating handle 18 is fixedly arranged at the bottom end of the positioning screw rod 19 through bolts, a concrete sample is placed on the lower pressing plate 2, before testing, the positioning screw 19 can be driven to move in the threaded hole 22 by rotating the rotating handle 18, thereby driving the positioning head 21 to move towards the two sides of the concrete sample, thereby clamping the concrete sample, facilitating the centering and the laying of the concrete sample, during test loading, the positioning head 21 may optionally be removed to take into account lateral expansion of the concrete specimen under pressure.

One side of frame 23 is fixed with protection chamber door 13 through the hinge, has toughened glass observation window 12 through the bolt fastening on the protection chamber door 13, has good guard action, prevents that the concrete test piece is cracked, injures the user.

The utility model discloses during the use, the concrete sample that will need the test is fixed on holding down plate 2 through locating component 7, telescopic cylinder 9 works, drive holding down plate 8 downstream, make it to the even applied pressure of concrete sample, through the lower pressure sensor 3 and the upper pressure sensor 10 real-time detection telescopic cylinder 9 that set up exert force to the concrete sample, and transmit the pressure signal who collects to PLC controller 24, the PLC controller 24 is handled the back and is shown on touch screen 6, convenient to use person looks over the concrete sample state according to the pressure condition, the convenience of use has effectively been promoted;

when the upper pressing plate 8 moves downwards, the buffer plate 4 can contact with the concrete test piece before the concrete test piece, the buffer plate 4 is stressed to drive the buffer rod 16 to move in the buffer groove 15, and finally the buffer spring 17 is driven to be stressed and compressed, so that the buffer spring 17 has a good buffer effect under the reverse acting force of the buffer spring 17, and the concrete test piece is prevented from being damaged due to sudden overlarge stress, and the test accuracy is prevented from being influenced;

can drive positioning screw 19 at the inside motion of screw hole 22 through rotating change handle 18 before the test to drive positioning head 21 and to the both sides motion of concrete sample, thereby press from both sides tight concrete sample, the centering and laying of the concrete sample of being convenient for, at the loaded in-process of test, consider that the concrete sample is expanded in the side under the pressure effect, the optional positioning head 21 that removes.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Concrete unipolar pressure device, including base (1), its characterized in that: the top of the base (1) is fixed with a frame (23) through bolts, the top center of the frame (23) is fixed with a telescopic cylinder (9) through bolts, the telescopic end of the telescopic cylinder (9) penetrates through the frame (23) and is fixed with an upper pressure sensor (10), the bottom of the upper pressure sensor (10) is fixed with an upper pressure plate (8) through bolts, the bottom of the upper pressure plate (8) is movably connected with a buffer component (11), the top center of the base (1) is fixed with a lower pressure sensor (3) through bolts, the top of the lower pressure sensor (3) is fixed with a lower pressure plate (2) through bolts, the corresponding two sides of the bottom of the lower pressure plate (2) are connected with the corresponding two ends of the base (1) through shock absorption columns (5), and the corresponding two sides of the top of the lower pressure plate (2) are fixed with positioning components (7) through bolts, one side of frame (23) is fixed with touch-control screen (6) through the bolt, the internally mounted of touch-control screen (6) has PLC controller (24), the input of the equal electric connection PLC controller (24) of push down force transducer (3) and last pressure sensor (10), the output electric connection touch-control screen (6) of PLC controller (24).

2. The concrete uniaxial pressure device according to claim 1, wherein: buffer unit (11) include stopper (14), dashpot (15), buffer beam (16), buffer spring (17) and buffer board (4), buffer beam (15) link up the symmetry and set up the both sides in top plate (8), the inside sliding connection of buffer beam (15) has buffer beam (16), the top welded fastening of buffer beam (16) has stopper (14), the bottom of buffer beam (16) has buffer board (4) through welded fastening, cup joint on buffer beam (16) and be fixed with buffer spring (17) that are located buffer beam (15) inside.

3. The concrete uniaxial pressure device according to claim 1, wherein: locating component (7) are including turning handle (18), positioning screw (19), locating plate (20), location head (21) and screw hole (22), locating plate (20) correspond both sides at the top of holding down plate (2) through the bolt symmetry installation, the center department of locating plate (20) sets up screw hole (22) that link up, the inside of screw hole (22) connects soon and is fixed with positioning screw (19), the top of positioning screw (19) is fixed with location head (21) through the bonding, the bottom of positioning screw (19) is fixed with turning handle (18) through the bolt.

4. The concrete uniaxial pressure device according to claim 1, wherein: one side of the frame (23) is fixedly provided with a protective box door (13) through a hinge, and the protective box door (13) is fixedly provided with a toughened glass observation window (12) through a bolt.