CN210534035U

CN210534035U - Test piece box for concrete freeze thawing test and test piece box assembly

Info

Publication number: CN210534035U
Application number: CN201921254288.XU
Authority: CN
Inventors: 夏昌煌; 江恒; 朱红兵; 施旭刚; 李咏灿
Original assignee: Wuhan University of Science and Engineering WUSE
Current assignee: Wuhan University of Science and Engineering WUSE
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-05-15
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a test piece box and test piece box subassembly for concrete freeze thawing test, the test piece box is used for holding rectangular bodily form's test piece, the bottom surface of test piece is the square, including rectangular box body and metal stores pylon, the vertical setting of rectangular box body, its inside cavity and upper end opening both ends difference level about the metal stores pylon upper end is equipped with the extension, metal stores pylon detachable sets up in the box body, and pass through the extension is hung and is established the upper end tip of box body, vertical and detachable of test piece is shelved on the metal stores pylon. The utility model provides a test piece takes out or puts into be convenient for to can be quick even transmission temperature be used for concrete freeze thawing test's test piece box and test piece box subassembly.

Description

Test piece box for concrete freeze thawing test and test piece box assembly

Technical Field

The utility model relates to an experimental apparatus field. More specifically speaking, the utility model relates to a test piece box and test piece box subassembly for concrete freeze thawing test.

Background

In the current stage of engineering, particularly in western regions and hydraulic concrete engineering, the frost resistance of concrete needs to be tested. The specification stipulates that the test piece box is made of a rubber plate with the thickness of 4-5 mm, the external horizontal cross-sectional dimension is 110mm multiplied by 110mm, the height is 500mm, and the test piece box is in a cuboid shape.

When the freeze thawing test is carried out, the concrete test piece is firstly placed into the test piece box, then water is added into the test piece box until the water just overflows the concrete test piece, and then the test piece box is placed into the freeze thawing box for the test.

The test piece box used at present has the following problems:

1) the volume increase of concrete sample after freeze thawing test to and freeze filling and absorption of damaging the thing, make some concrete sample cards can't take out easily in the test piece box. Meanwhile, the test piece box is made of a rubber plate, so that the outer part of the test piece box is smooth, the test piece box is heavy together with water and concrete, and the concrete test piece can be poured out only with great effort.

2) When the concrete is poured out or put in, the concrete sample can be collided due to the fall, so that the test accuracy is not high.

3) At present, only one side in the freezing and thawing box provides temperature, so that the temperature at each position in the freezing and thawing box is inconsistent.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be convenient for test piece takes out or puts into to can be quick even transmission temperature be used for concrete freeze thawing test's test piece box and test piece box subassembly.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a test piece box for concrete freeze thawing test for hold rectangular bodily form's test piece, the bottom surface of test piece is the square, including rectangular box body and metal stores pylon, the vertical setting of rectangular box body, its inside cavity and upper end opening, both ends level respectively about the metal stores pylon upper end are equipped with the extension, metal stores pylon detachable sets up in the box body, and pass through the extension is hung and is established the upper end tip of box body, vertical and detachable of test piece is shelved on the metal stores pylon.

Preferably, in the test piece box for the concrete freeze-thaw test, the metal hanger is a rectangular parallelepiped frame, the length of the long side of the bottom surface of the metal hanger is equal to the length of the bottom surface of the test piece, and the length of the short side of the bottom surface of the metal hanger is smaller than the length of the bottom surface of the test piece.

Preferably, in the test piece box for the concrete freeze-thaw test, the upper end of the box body is provided with an outward flange, and the extension parts are all placed on the outward flange.

Preferably, in the test piece box for the concrete freeze-thaw test, the extension part is a horizontally arranged U-shaped metal ring, and two ends of the U-shaped metal ring are respectively connected with the upper end of the metal hanger.

Preferably, in the test piece box for the concrete freeze-thaw test, when the test piece passes through the metal hanging rack and is arranged in the box body, the distance between the lower end of the test piece and the bottom wall of the box body is equal to the distance between each side wall of the test piece and the corresponding inner side wall of the box body.

The utility model also provides a test piece box subassembly for concrete freeze-thaw test, including a plurality of foretell test piece boxes that are used for concrete freeze-thaw test, it is a plurality of the test piece box sets up side by side, and adjacent two along controlling the direction extension detachable between the test piece box connects.

The utility model has the advantages that:

1) the test piece box is simple in structure and easy to operate;

2) the metal hanging rack is flexible and light, and is convenient for an operator to take out or put in the concrete test piece;

3) the metal conduction temperature performance is better, and each test piece box is connected by a metal ring so as to conduct the temperature;

4) the metal hanging rack can transfer temperature, so that the upper temperature and the lower temperature of the concrete test piece are consistent;

5) the metal basket is used for taking out or putting in the test piece, so that the test error caused by the collision of the concrete test piece in the process is reduced.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of a test piece box according to the present invention;

fig. 2 is a top view of the test piece box according to the present invention;

FIG. 3 is a schematic view of the connection between the test piece box and the test piece according to the present invention;

fig. 4 is a schematic structural view of the metal hanger according to the present invention;

fig. 5 is a schematic view illustrating the connection between the metal hanger and the test piece according to the present invention;

figure 6 is a top view of the test piece box assembly of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Fig. 1-5 do the embodiment of the utility model provides a pair of a test piece box for concrete freeze thawing test for hold rectangular bodily form test piece 1, the bottom surface of test piece 1 is the square, including rectangular box body 2 and

metal stores pylon

3, 2 vertical settings of rectangular box body, its inside cavity and upper end opening both ends difference level about 3 upper ends of metal stores pylon is equipped with

extension

4, 3 detachable settings of metal stores pylon are in the box body 2, and pass through extension 4 is hung and is established the upper end tip of

box body

2, 1 vertical and detachable of test piece is shelved on the metal stores pylon 3.

In the above embodiment, the test piece 1 is vertically and detachably placed on the metal hanging rack 3, the metal hanging rack 3 is detachably arranged in the box body 2, so that the test error caused by the collision of the concrete test piece in the process can be reduced, and meanwhile, the metal hanging rack 3 can transfer the temperature, so that the temperature of the concrete test piece is consistent.

Preferably, as another embodiment of the present application, the metal hanger 3 is a rectangular parallelepiped frame, the length of the long side of the bottom surface of the frame is equal to the length of the bottom surface of the test piece 1, and the length of the short side of the bottom surface of the frame is smaller than the length of the bottom surface of the test piece 1.

In the above embodiment, the length of the long side of the bottom surface of the metal hanger 3 is equal to the length of the bottom surface of the test piece 1, and the length of the short side of the bottom surface is smaller than the length of the bottom surface of the test piece 1, so that the test piece 1 can be placed on the bottom surface of the metal hanger 3, and the test piece 1 is clamped by the four vertical sides of the metal hanger 3.

Preferably, as another embodiment of the present application, the upper end of the box body 2 is provided with a flange 5, and the extensions 4 all rest on the flange 5; the extension part 4 is a horizontally arranged U-shaped metal ring, and two ends of the U-shaped metal ring are respectively connected with the upper end of the metal hanging rack 3.

In the above embodiment, the extension portion 4 is a horizontally disposed U-shaped metal ring, which can reduce the weight of the extension portion 4.

Preferably, as another embodiment of this application, when test piece 1 is vertically set up in box body 2, the distance between the lower extreme of test piece 1 and the diapire of box body 2 and each lateral wall of test piece 1 is to corresponding the distance between the inside wall of box body 2 is equal.

In the above embodiment, when the test piece 1 is vertically arranged in the box body 2, the distance between the lower end of the test piece 1 and the bottom wall of the box body 2 is equal to the distance between each side wall of the test piece 1 and the corresponding inner side wall of the box body 2, so that the temperature distribution of the test piece 1 is more uniform during the freeze-thaw test.

The utility model provides a test piece box subassembly for concrete freeze-thaw test, as shown in fig. 6, including a plurality of foretell test piece boxes that are used for concrete freeze-thaw test, it is a plurality of the test piece box sets up side by side, and adjacent two along controlling the direction 4 detachable of extension between the test piece box connects.

In the above embodiment, when freezing and thawing test, can set up a plurality of test piece boxes side by side to with extension 4 detachable connection between the adjacent test piece box, form the experiment box subassembly, it is specific, can be at the lower extreme of two extension 4 of every test piece box, one sets up protrudingly, one sets up the recess, when two test piece boxes link to each other, the bellied extension 4 of one of them experiment cassette tape is connected with extension 4 detachable of another experiment cassette tape recess.

While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields suitable for the invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and embodiments shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims

1. The utility model provides a test piece box for concrete freeze thawing test for hold rectangular bodily form test piece (1), the bottom surface of test piece (1) is the square, its characterized in that, including rectangular box body (2) and metal stores pylon (3), the vertical setting of rectangular box body (2), its inside cavity and upper end opening, both ends level respectively about metal stores pylon (3) upper end are equipped with extension (4), metal stores pylon (3) detachable sets up in box body (2), and pass through extension (4) are hung and are established the upper end tip of box body (2), test piece (1) is vertical and detachable shelves on metal stores pylon (3).

2. A test piece box for concrete freeze-thaw tests according to claim 1, characterized in that the metal hanger (3) is a rectangular parallelepiped frame having a bottom surface with a long side having a length equal to a length of the bottom surface of the test piece (1) and a short side having a length smaller than the length of the bottom surface of the test piece (1).

3. A test piece box for concrete freeze-thaw tests according to claim 2, characterized in that the upper end of the box body (2) is provided with a flange (5), the extensions (4) each resting on the flange (5).

4. A test piece box for concrete freeze-thaw tests according to claim 3, characterized in that the extension portion (4) is a horizontally disposed U-shaped metal ring, and both ends of the U-shaped metal ring are respectively connected with the upper end of the metal hanger (3).

5. A test piece box for concrete freeze-thaw tests according to any one of claims 1 to 3, characterized in that when the test piece (1) is arranged in the box body (2) by the metal hanger (3), the distance between the lower end of the test piece (1) and the bottom wall of the box body (2) is equal to the distance between each side wall of the test piece (1) and the corresponding inner side wall of the box body (2).

6. A test piece box assembly for a concrete freeze-thaw test, comprising a plurality of test piece boxes for a concrete freeze-thaw test according to any one of claims 1 to 5, wherein the plurality of test piece boxes are juxtaposed in a left-right direction, and the extension portions (4) between adjacent two of the test piece boxes are detachably connected.