CN211348237U

CN211348237U - Concrete shrinkage test device

Info

Publication number: CN211348237U
Application number: CN201922112451.5U
Authority: CN
Inventors: 张俊
Original assignee: Zaoyang Xinda Tongxing Building Materials Co ltd
Current assignee: Zaoyang Xinda Tongxing Building Materials Co ltd
Priority date: 2019-12-01
Filing date: 2019-12-01
Publication date: 2020-08-25
Anticipated expiration: 2029-12-01

Abstract

The utility model relates to a concrete performance detection device technical field just discloses a concrete shrinkage test device, including the vibration-proof base, the fixed proof box that is provided with in top of vibration-proof base, be provided with the cushion chamber between vibration-proof base and the proof box, the cushion chamber is provided with main shockproof post, main shockproof post side is provided with vice shockproof post, the air cushion layer is installed to the inner wall bottom of proof box, experimental inner box is installed at the top of air cushion layer, shockproof layer is installed to the inner wall bottom of experimental inner box, the test bench is installed at the top on shockproof layer, the surface mounting of test bench has fixed leather collar, the inside of fixed leather collar is provided with the concrete piece, the both ends of concrete piece are provided with the measuring head, the side fixedly connected with of concrete piece is kept away from to the measuring head measures the support. The device is through setting up cushion chamber, main shockproof post, vice shockproof post, proof box and experimental inner box, multiple guarantee to make the buffering effect that takes precautions against earthquakes reach the best.

Description

Concrete shrinkage test device

Technical Field

The utility model relates to a concrete performance detection device technical field specifically is a concrete shrinkage test device.

Background

Shrinkage refers to the phenomenon of volume reduction due to physical and chemical actions. The cement concrete is classified into dry shrinkage, cold shrinkage, carbonization shrinkage and the like according to the cause of shrinkage, and is mainly related to the properties of raw materials, the mixing ratio, the curing method and the like. Uneven shrinkage can cause internal stresses and even cracks in the product and the member, which can affect the quality and durability of the concrete. The digital display amesdial commonly used detects the concrete shrinkage percentage in the work, shows data calculation concrete shrinkage average value according to the multiunit table in addition, and current experimental apparatus mostly exposes main measuring device outside, receives external interference very easily, and the device base also does not possess jar-proof function, causes other external influences of measuring result great, and the numerical value is inaccurate.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a concrete shrinkage test device possesses shockproof effectual, stable strong and detect advantages such as accuracy, has solved the problem in the above-mentioned technical background.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a concrete shrinkage test device comprises a shockproof base, a test box is fixedly arranged at the top of the shockproof base, a buffer cavity is arranged between the shockproof base and the test box, a main shockproof column is arranged in the buffer cavity, an auxiliary shockproof column is arranged on the side surface of the main shockproof column, an air cushion layer is arranged at the bottom of the inner wall of the test box, an inner test box is arranged at the top of the air cushion layer, a shockproof layer is arranged at the bottom of the inner wall of the inner test box, a test table is arranged at the top of the shockproof layer, a fixed leather ring is arranged on the surface of the test table, a concrete block is arranged in the fixed leather ring, measuring heads are arranged at two ends of the concrete block, a measuring support is fixedly connected to the side surface of the measuring head far away from the concrete block, a dial indicator is arranged on the side surface of the measuring support far away from the measuring, and a return spring is arranged between the outer side of the test inner box and the inner wall of the test box.

Preferably, the top of the test box is provided with an outer flip cover, and the surface of the outer flip cover is provided with a ventilation window.

Preferably, a sealing plug is arranged on the side surface of the air cushion layer, and a sealing ring is arranged at one end of the sealing plug.

Preferably, a lower fixing block is arranged at the bottom of the inner side of the main shockproof column, an upper fixing clamping column is arranged at the top of the main shockproof column, and a buffer layer is arranged between the outer side of the lower fixing block and the inner side of the upper fixing clamping column.

Preferably, a semicircular supporting strip is arranged on the surface of the test bed on the inner side of the fixed leather ring.

Preferably, the front surface of the test chamber is provided with a synchronous display.

Compared with the prior art, the utility model provides a concrete shrinkage test device possesses following beneficial effect:

1. the device is through setting up the cushion chamber, be provided with the main post that takes precautions against earthquakes in the cushion chamber, the inboard bottom of the main post that takes precautions against earthquakes is provided with down the fixed block, the top of the main post that takes precautions against earthquakes is provided with the fixing clip post, bottom fixed connection through setting up fixing clip post and proof box, the mounting means of intermediate junction buffer layer is rubbed open with last fixing clip post through the fixed block down in setting up, thereby reach the purpose of taking precautions against earthquakes buffering, through set up a plurality of main posts and a plurality of vice post that take precautions against earthquakes in the cushion chamber, thereby make the buffering effect that takes precautions against earthquakes reach the optimum, bottom through 7 at experimental inner box sets up the air cushion layer, it links to each other with the inside of proof box to set up reset spring in the four sides outside of experimental inner box, and the layer that takes precautions.

2. The device thereby fixes the concrete piece in the measuring position through setting up fixed apron, fixed apron inboard test bench surface is provided with the semicircular support strip, through setting up the semicircular support strip, thereby the bottom that makes the concrete piece diminishes with the contact surface of test bench, thereby reduce the influence of frictional force to the shrink of concrete piece, through the measuring head that sets up great contact surface, and the contact surface of measuring head and concrete piece keeps on same vertical line with the inboard of fixed apron, thereby make the contact surface of measuring head and concrete piece bigger, it is more accurate to make the measuring result.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic sectional view of the structure of the present invention;

FIG. 3 is an enlarged schematic view of the point A in the structure diagram of the present invention in FIG. 2;

FIG. 4 is a schematic top view of the structural test bed of the present invention;

fig. 5 is a schematic top view of the structure of the present invention.

Wherein: 1. a shock-proof base; 2. a test chamber; 3. a buffer chamber; 4. a main anti-vibration column; 401. a lower fixed block; 402. fixing a clamping column; 403. a buffer layer; 5. a secondary anti-vibration post; 6. an air cushion layer; 7. testing the inner box; 8. a shock-resistant layer; 9. a test bed; 10. fixing a leather ring; 101. a semicircular supporting bar; 11. a concrete block; 12. a measuring head; 13. a measuring support; 14. a dial indicator; 15. a support; 16. a return spring; 17. an outer flip cover; 18. a ventilation window; 19. a sealing plug; 20. a seal ring; 21. the display is synchronized.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-5, a concrete shrinkage test device comprises a base 1, the base 1 is a solid trapezoidal lead column, the contact surface with the ground or the table is a larger surface, the stability of the device is enhanced, a test box 2 is fixedly arranged on the top of the base 1, the test box 2 is arranged on the top of the base 1, so as to protect the measuring device inside, and prevent the measuring device from being influenced by the touch of other people, an outer flip cover 17 is arranged on the top of the test box 2, a concrete block 11 is conveniently placed in the test device by arranging the outer flip cover 17 on the top of the test box 2, a ventilation window 18 is arranged on the surface of the outer flip cover 17, because the whole device is a double-layer test box structure, if the device is completely sealed, the temperature and humidity in the test inner box 7 are too much different from the external environment, so the ventilation window 18 is arranged on the surface of the outer flip cover 17, the temperature and humidity in the test inner box 7 are kept synchronous with the external environment, the test result is more persuasive, the synchronous display 21 is arranged on the front surface of the test box 2, the measurement result of the synchronous dial indicator 14 is more visual in the inspection value, the buffer cavity 3 is arranged between the shockproof base 1 and the test box 2, so that the device can prevent the measurement result from being influenced by the self-vibration of other objects when the surfaces of the other objects are prevented, the main shockproof column 4 is arranged in the buffer cavity 3, the upper fixed clamp column 402 is arranged at the top of the main shockproof column 4, the upper fixed clamp column 402 is fixedly connected with the bottom of the test box 2, the installation mode that the middle connecting buffer layer 403 is twisted off by the lower fixed block 401 and the upper fixed clamp column 402 is arranged, and the shockproof buffer purpose is achieved, the main shock-proof columns 4 and the auxiliary shock-proof columns 5 are arranged in the buffer cavity 3, so that the shock-proof buffer effect is optimal, the bottom of the inner side of each main shock-proof column 4 is provided with a lower fixing block 401, the lower fixing block 401 is fixedly connected with the top surface of the shock-proof base 1, a buffer layer 403 is arranged between the outer side of the lower fixing block 401 and the inner side of the upper fixing clamp column 402, the auxiliary shock-proof columns 5 are arranged on the side surfaces of the main shock-proof columns 4, one auxiliary shock-proof column 5 is fixedly arranged between the gaps of every two adjacent main shock-proof columns 4, the bottom of the inner wall of the test box 2 is provided with a sealing plug 6, the side surface of the air cushion layer 6 is provided with a sealing plug 19, the sealing plug 19 is fixedly communicated with an inflation inlet, one end of the sealing plug 19 is provided with a sealing ring 20, the top of the air, the test bed 9 is installed on the top of the shockproof layer 8, the fixed leather ring 10 is installed on the surface of the test bed 9, the concrete block 11 is fixed at the measuring position by arranging the fixed leather ring 10, the semicircular supporting bar 101 is arranged on the surface of the test bed 9 on the inner side of the fixed leather ring 10, the semicircular supporting bar 101 is arranged, so that the contact surface between the bottom of the concrete block 11 and the test bed 9 is reduced, the influence of friction force on the contraction of the concrete block 11 is reduced, the concrete block 11 is arranged inside the fixed leather ring 10, the measuring heads 12 are arranged at the two ends of the concrete block 11, the measuring heads 12 with larger contact surfaces are arranged, the contact surfaces between the measuring heads 12 and the concrete block 11 and the inner side of the fixed leather ring 10 are kept on the same vertical line, so that the contact surfaces between the measuring heads 12 and the concrete block 11 are larger, the measuring result is more accurate, the measuring heads 12 are fixedly connected with the measuring support 13 on the side, the side of measuring support 13 keeping away from measuring head 12 is provided with amesdial 14, amesdial 14's bottom fixedly connected with support 15, be provided with reset spring 16 between experimental inner box 7's the outside and proof box 2 inner wall, set up air bed layer 6 through the bottom at experimental inner box 7, it links to each other with proof box 2's inside to set up reset spring 16 in experimental inner box 7's the four sides outside, prevent that the proof box 2 outside from rocking influence test result, strengthen the shockproof buffering effect of device.

When the device is used, firstly, concrete is poured into a corresponding grinding tool to enable the size of the concrete to be matched with the fixed leather ring 10, the outer flip cover 17 is opened to place the solidified concrete block 11 into the fixed leather ring 10 on the test bed 9, finally, the outer flip cover 17 is closed, the test result is waited for, the test value can be directly read from the synchronous display 21, and the shockproof structure of the device ensures that the test cannot be carried out again due to external vibration touch interference in the process of waiting for the test result.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a concrete shrinkage test device, includes shockproof base (1), its characterized in that: the anti-vibration test bed is characterized in that a test box (2) is fixedly arranged at the top of the anti-vibration base (1), a buffer cavity (3) is arranged between the anti-vibration base (1) and the test box (2), a main anti-vibration column (4) is arranged in the buffer cavity (3), an auxiliary anti-vibration column (5) is arranged on the side surface of the main anti-vibration column (4), an air cushion layer (6) is arranged at the bottom of the inner wall of the test box (2), an inner test box (7) is arranged at the top of the air cushion layer (6), an anti-vibration layer (8) is arranged at the bottom of the inner wall of the inner test box (7), a test table (9) is arranged at the top of the anti-vibration layer (8), a fixed leather collar (10) is arranged on the surface of the test table (9), a concrete block (11) is arranged in the fixed leather collar (10), measuring heads (12) are arranged at two ends of the concrete block (11), and, the side face, far away from the measuring head (12), of the measuring support (13) is provided with a dial indicator (14), the bottom of the dial indicator (14) is fixedly connected with a support (15), and a return spring (16) is arranged between the outer side of the test inner box (7) and the inner wall of the test box (2).

2. The concrete shrinkage test apparatus of claim 1, wherein: an outer flip cover (17) is arranged at the top of the test box (2), and a ventilation window (18) is arranged on the surface of the outer flip cover (17).

3. The concrete shrinkage test apparatus of claim 1, wherein: a sealing plug (19) is arranged on the side face of the air cushion layer (6), and a sealing ring (20) is arranged at one end of the sealing plug (19).

4. The concrete shrinkage test apparatus of claim 1, wherein: the anti-vibration device is characterized in that a lower fixing block (401) is arranged at the bottom of the inner side of the main anti-vibration column (4), an upper fixing clamping column (402) is arranged at the top of the main anti-vibration column (4), and a buffer layer (403) is arranged between the outer side of the lower fixing block (401) and the inner side of the upper fixing clamping column (402).

5. The concrete shrinkage test apparatus of claim 1, wherein: a semicircular supporting strip (101) is arranged on the surface of the test bed (9) on the inner side of the fixed leather ring (10).

6. The concrete shrinkage test apparatus of claim 1, wherein: the front surface of the test box (2) is provided with a synchronous display (21).