CN216387062U

CN216387062U - Concrete shrinkage test device

Info

Publication number: CN216387062U
Application number: CN202122939282.XU
Authority: CN
Inventors: 张志强
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-28
Filing date: 2021-11-28
Publication date: 2022-04-26
Anticipated expiration: 2031-11-28

Abstract

The utility model discloses a concrete shrinkage test device which comprises a placing plate, wherein an installing frame and a concrete block to be tested are respectively arranged on the upper surface of the placing plate, a telescopic groove is formed in the upper surface of the installing frame, a threaded sleeve is slidably connected to the inner wall of the telescopic groove, a telescopic column is in threaded connection with the inner wall of the threaded sleeve, a test frame is slidably connected to the inner wall of the installing frame, the lower end of the telescopic column is rotatably connected with the upper surface of the test frame through a bearing, a through groove is formed in the lower surface of the test frame, and a moving column is slidably connected to the inner wall of the through groove. This concrete shrinkage test device, the test frame carries out the lift removal of vertical direction at the inner wall of installing frame, will await measuring the concrete piece and place the upper surface at placing the board, and the test frame moves down makes the test head and the overlap joint board of amesdial support the pressure to the concrete piece that awaits measuring, and then eliminates the frictional force of vertical direction to measuring influence, will await measuring the concrete piece and rotate ninety degrees, can measure the expansion shrinkage value of the concrete piece both sides horizontal direction that awaits measuring.

Description

Concrete shrinkage test device

Technical Field

The utility model relates to the technical field of concrete detection, in particular to a concrete shrinkage test device.

Background

In the building engineering, concrete is one of the commonly used building construction materials, and the concrete still can be subject to the temperature change of nature and expand with heat and contract with cold after being condensed into a solid block, so people need to use a dial indicator to detect the shrinkage and expansion of the experimental concrete block before the concrete is poured.

However, the existing experimental concrete block is basically horizontally placed on the supporting plate, when the concrete block contracts and expands, although the dial indicator can measure data of expansion and contraction, the surface of the supporting plate, which is in contact with the concrete block, can rub the surface of the concrete block, so that a measurement error is formed, and therefore, a concrete contraction testing device is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a concrete shrinkage test device to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a concrete shrinkage test device, including placing the board, the upper surface of placing the board is provided with the installing frame respectively and awaits measuring the concrete block, flexible groove has been seted up to the upper surface of installing frame, the inner wall sliding connection in flexible groove has the threaded sleeve, the inner wall threaded connection of threaded sleeve has flexible post, the inner wall sliding connection of installing frame has the test frame, the lower extreme of flexible post passes through the bearing and rotates with the upper surface of test frame to be connected, logical groove has been seted up to the lower surface of test frame, the inner wall sliding connection who leads to the groove has the removal post, the surface cover that removes the post is equipped with expanding spring, the lower extreme fixed mounting who removes the post has the overlap joint board, the inner wall fixed mounting of test frame has the amesdial.

Preferably, the last fixed surface of installing frame installs the spacing ring, and the equal threaded connection of both sides face of spacing ring has spacing post, and a plurality of inserting groove has all been seted up to threaded sleeve's both sides face, and the surface of spacing post and the inner wall overlap joint of inserting groove.

Preferably, the inner wall of the mounting frame is provided with a stabilizing groove, two side faces of the test frame are provided with two rotating wheels, and the surfaces of the rotating wheels are rotatably connected with the inner wall of the stabilizing groove.

Preferably, the upper end of each telescopic spring is fixedly connected with the inner top wall of the test frame, and the number of the movable columns and the number of the telescopic springs are four.

Preferably, two holding columns are fixedly arranged on the surface of the upper end of the telescopic column.

Preferably, the dial indicator comprises a gauge head, a testing head and a return-to-zero rotating head, and the lower end of the testing head and the lower surface of the lap joint plate are lapped with the upper surface of the concrete block to be tested.

Advantageous effects

The utility model provides a concrete shrinkage test device, which has the following beneficial effects:

1. this concrete shrinkage test device, place board and test frame through the setting, the test frame carries out the lift removal of vertical direction at the inner wall of installing frame, the concrete piece that will await measuring is placed at the upper surface of placing the board, the test frame moves down makes the test head and the overlap joint board of amesdial support the pressure to the concrete piece that awaits measuring, can make the side of the concrete piece that awaits measuring not have any overlap joint thing, and then eliminate the frictional force of vertical direction to measuring influence, the concrete piece that will await measuring rotates ninety degrees, can measure the expansion and contraction value of the concrete piece both sides horizontal direction that awaits measuring.

2. This concrete shrinkage test device through setting up threaded sleeve and flexible post, will await measuring the concrete piece and place the back on placing the board, removes the position of adjustment test frame that threaded sleeve can be by a wide margin and overlap joint board, makes things convenient for the overlap joint board fast and the concrete piece overlap joint that awaits measuring, uses spacing ring fixed thread sleeve after the overlap joint, rotates flexible post and makes the test frame carry out the removal decline of small-amplitude, can make the slow atress shrink of test head of amesdial, and then carries out test work.

Drawings

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

FIG. 2 is a perspective view of a threaded sleeve;

FIG. 3 is a schematic front view of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 1.

In the figure: the test device comprises a placing plate 1, a mounting frame 2, a concrete block to be tested 3, a threaded sleeve 4, a telescopic column 5, a test frame 6, a movable column 7, a telescopic spring 8, a lapping plate 9, a dial indicator 10, a gauge head 101, a test head 102, a return-to-zero swivel 103, a limiting ring 11, a limiting column 12, a rotating wheel 13 and a holding column 14.

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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a concrete shrinkage test device, including placing board 1, the upper surface of placing board 1 is provided with installing frame 2 and the concrete block 3 that awaits measuring respectively, flexible groove has been seted up to the upper surface of installing frame 2, the inner wall sliding connection in flexible groove has threaded sleeve 4, the last fixed surface of installing frame 2 installs spacing ring 11, the equal threaded connection of both sides face of spacing ring 11 has spacing post 12, a plurality of inserting groove has all been seted up to threaded sleeve 4's both sides face, the surface of spacing post 12 and the inner wall overlap joint of inserting groove, inject spacing post 12 into the inner wall of inserting groove, can carry out spacing fixed at the inner wall of spacing ring 11 with threaded sleeve 4, the inner wall threaded connection of threaded sleeve 4 has flexible post 5, the fixed surface of the upper end of flexible post 5 installs two and holds post 14, through holding post 14, people can be convenient flexible post 5 of rotation.

The inner wall of the mounting frame 2 is connected with a testing frame 6 in a sliding way, the lower end of the telescopic column 5 is rotationally connected with the upper surface of the testing frame 6 through a bearing, the lower surface of the testing frame 6 is provided with a through groove, the inner wall of the through groove is connected with a moving column 7 in a sliding way, the surface of the moving column 7 is sleeved with a telescopic spring 8, the upper end of the telescopic spring 8 is fixedly connected with the inner top wall of the testing frame 6, the number of the moving column 7 and the number of the telescopic springs 8 are four, the telescopic springs 8 can drive the lap plate 9 to perform elastic displacement when the concrete block 3 to be tested expands and contracts, simultaneously lap joint board 9 can extrude concrete block 3 that awaits measuring, avoids concrete block 3 that awaits measuring to take place the displacement, and the lower extreme fixed mounting who removes post 7 has lap joint board 9, and the inner wall fixed mounting of test frame 6 has amesdial 10, and amesdial 10 includes gauge outfit 101, test head 102 and return to zero swivel 103, and the lower extreme of test head 102 and the lower surface of lap joint board 9 all with the last surface overlap joint of concrete block 3 that awaits measuring.

Place board 1 and test frame 6 through the setting, test frame 6 carries out the lift removal of vertical direction at the inner wall of installing frame 2, concrete piece 3 that will await measuring is placed at the upper surface of placing board 1, test frame 6 moves down and makes test head 102 and lap-joint plate 9 of amesdial 10 support the pressure to concrete piece 3 that awaits measuring, can make the side of concrete piece 3 that awaits measuring not have any overlap joint, and then eliminate the frictional force of vertical direction to measuring influence, concrete piece 3 that will await measuring rotates ninety degrees, can measure the expansion and contraction value of concrete piece 3 both sides horizontal direction that awaits measuring.

Through setting up threaded sleeve 4 and flexible post 5, will await measuring concrete piece 3 and place back on placing board 1, remove the position of regulation test frame 6 and overlap joint board 9 that threaded sleeve 4 can be by a wide margin, make things convenient for overlap joint board 9 quick and the 3 overlap joints of concrete piece that await measuring, use spacing ring 11 fixed thread sleeve 4 after the overlap joint, it descends to rotate flexible post 5 and make test frame 6 carry out the removal of small range, can make the slow atress shrink of test head 102 of amesdial 10, and then carry out test work.

The inner wall of installing frame 2 has been seted up and has been stabilized the groove, and the both sides face of test frame 6 all is provided with two runners 13, and the surface of runner 13 rotates with the inner wall in stable groove to be connected, and when the inner wall of installing frame 2 was slided in test frame 6, runner 13 can promote smoothness degree and stability when test frame 6 slided.

The working principle is as follows: when using the device to carry out the concrete contraction experiment, at first place the upper surface of placing board 1 with concrete block 3 that awaits measuring, then through removing threaded sleeve 4, make lap-joint plate 9 and test head 102 and the upper surface overlap joint of concrete block 3 that awaits measuring, then slowly rotate flexible post 5, test frame 6 moves down slowly, the test head 102 atress shrink of amesdial 10, treat that the pointer in gauge outfit 101 rotates the round after, utilize return to zero swivel 103 to return to the zero scale position with the pointer, when concrete block 3 that awaits measuring takes place the inflation and shrink, test head 102 can contract, extend, thereby locate to draw concrete data at gauge outfit 101.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a concrete shrinkage test device, is including placing board (1), its characterized in that: the upper surface of placing board (1) is provided with installing frame (2) and concrete block (3) that awaits measuring respectively, flexible groove has been seted up to the upper surface of installing frame (2), the inner wall sliding connection in flexible groove has threaded sleeve (4), the inner wall threaded connection of threaded sleeve (4) has flexible post (5), the inner wall sliding connection of installing frame (2) has test frame (6), the lower extreme of flexible post (5) passes through the bearing and is connected with the upper surface rotation of test frame (6), logical groove has been seted up to the lower surface of test frame (6), the inner wall sliding connection who leads to groove has removal post (7), the surperficial cover that removes post (7) is equipped with expanding spring (8), the lower extreme fixed mounting of removal post (7) has overlap plate (9), the inner wall fixed mounting of test frame (6) has amesdial (10).

2. A concrete shrinkage test apparatus according to claim 1, wherein: the mounting frame is characterized in that a limiting ring (11) is fixedly mounted on the upper surface of the mounting frame (2), limiting columns (12) are connected to the two side faces of the limiting ring (11) in a threaded mode, a plurality of insertion grooves are formed in the two side faces of the threaded sleeve (4), and the surfaces of the limiting columns (12) are in lap joint with the inner walls of the insertion grooves.

3. A concrete shrinkage test apparatus according to claim 1, wherein: the inner wall of the mounting frame (2) is provided with a stabilizing groove, two side faces of the testing frame (6) are provided with two rotating wheels (13), and the surfaces of the rotating wheels (13) are rotatably connected with the inner wall of the stabilizing groove.

4. A concrete shrinkage test apparatus according to claim 1, wherein: the upper end of the telescopic spring (8) is fixedly connected with the inner top wall of the test frame (6), and the number of the movable columns (7) and the number of the telescopic springs (8) are four.

5. A concrete shrinkage test apparatus according to claim 1, wherein: two holding columns (14) are fixedly arranged on the surface of the upper end of the telescopic column (5).

6. A concrete shrinkage test apparatus according to claim 1, wherein: the dial indicator (10) comprises an indicator head (101), a testing head (102) and a zero return rotating head (103), and the lower end of the testing head (102) and the lower surface of the lapping plate (9) are lapped with the upper surface of the concrete block (3) to be tested.