CN210923391U

CN210923391U - Consistency condensation tester

Info

Publication number: CN210923391U
Application number: CN201921854112.8U
Authority: CN
Inventors: 黄鸣剑
Original assignee: Ningbo Zhong Shui Ke Chemical Technology Co ltd
Current assignee: Ningbo Zhong Shui Ke Chemical Technology Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-07-03
Anticipated expiration: 2029-10-30

Abstract

The utility model discloses a consistency condensation determinator, which comprises a base, a bracket arranged on the base, and a test bar arranged on the bracket along the vertical direction, wherein a glass plate and a circular mold are sequentially placed on the base; the testing device is characterized in that a lower magnetic block is fixedly arranged at the central position of the base, an upper magnetic block is fixedly arranged at the central position of the circular die, the lower magnetic block and the upper magnetic block can attract each other when the circular die is placed above the base, and the center of the circular die is located right below the test rod when the lower magnetic block and the upper magnetic block are attracted to each other to be static. The positioning device has the advantages that the positioning of accurate positioning of the circular mold is convenient.

Description

Consistency condensation tester

Technical Field

The utility model relates to a test instrument, concretely relates to consistency condensation apparatus.

Background

The consistency setting tester, also called as cement standard consistency and setting time tester, is used to measure the water consumption and setting time of standard consistency of cement paste. The test comprises the following contents:

(1) after the mixing of the clean slurry is finished, the mixed clean cement slurry is filled into a circular mold which is arranged on a glass plate, the circular mold is inserted and tamped by a knife and slightly vibrated for a plurality of times, the redundant clean slurry is scraped off, the circular mold and the glass plate are quickly moved to a Vicat instrument after the clean slurry is smoothed, and the center of the circular mold and the glass plate is fixed under a test rod.

(2) And (4) lowering the test rod to the surface of the clean slurry, screwing down the screw, suddenly loosening, and recording the distance between the test rod and the bottom plate when the test rod stops sinking or is released for 30 s. The whole operation should be completed within 1.5min after stirring. The cement paste with the test rod sunk into the paste and 6mm +/-1 mm from the bottom plate is taken as the standard consistency. The device comprises a cement consistometer, a Vicat instrument and a cement paste standard consistometer and a setting time determinator.

(3) Initial setting time measurement: and (3) placing the round mold on a glass plate, placing the clean slurry into the round mold, inserting and vibrating the round mold for several times, and maintaining the test piece in a maintenance box for 30 min. And (5) observing the pointer reading when the test needle stops sinking or is released for 30s, and setting the initial setting time of the cement when the test needle sinks to 4 +/-1 mm away from the bottom plate.

(4) The first measurement was performed by holding the metal bar so that it slowly descends to avoid the test needle from buckling.

(5) Final setting time determination: after the initial setting time is measured, the round mould homogeneous slurry is immediately taken down from the glass plate by a translation method, turned over by 180 degrees, placed on the glass plate with the large diameter end upward, and then placed in a curing box for curing. The final setting time of the cement is determined every 30min near the final setting when the needle is lowered 0.5mm, i.e. the annular attachment starts to leave no marks on the test body.

(6) When the initial setting and the final setting are reached, the measurement should be repeated once, and the two conclusions are the same to confirm.

In the above steps, in order to reduce the test error, centering the circular mold under the test bar is an important operation. However, the glass plate needs to be placed below the circular mold, and the circular mold is difficult to position by the base of the measuring instrument. In the existing operation, the centering operation of the round die can be generally carried out only by naked eyes, and certain errors exist.

Therefore, it is a problem to be solved by those skilled in the art to improve the conventional consistency coagulation measuring apparatus to overcome the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pair of consistency condensation apparatus who makes things convenient for circle mould pinpoint.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a consistency condensation tester comprises a base, a bracket arranged on the base, and a test rod arranged on the bracket along the vertical direction, wherein a glass plate and a circular mold are sequentially placed on the base; the method is characterized in that:

the testing device is characterized in that a lower magnetic block is fixedly arranged at the central position of the base, an upper magnetic block is fixedly arranged at the central position of the circular die, the lower magnetic block and the upper magnetic block can attract each other when the circular die is placed above the base, and the center of the circular die is located right below the test rod when the lower magnetic block and the upper magnetic block are attracted to each other to be static.

Preferably, the lower magnetic block and the upper magnetic block are in a circular structure capable of being completely overlapped. The circular upper and lower magnetic blocks are convenient to process, and the magnetic induction lines of the circular magnets have unique determinacy and can be better adsorbed and overlapped at unique positions.

As an improvement, a lower circular groove is formed above the base, the lower magnetic block is arranged in the lower circular groove, and the lower magnetic block is flush with the upper end face of the base; an upper circular groove is formed below the circular die, the upper magnetic block is installed in the upper circular groove, and the lower end faces of the upper magnetic block and the circular die are flush. The upper magnetic block and the lower magnetic block can be hidden by the structure, and the time measuring instrument is more concise and attractive.

Compared with the prior art, the utility model has the advantages of it is following: two magnets with the same shape generally have unique combination positions when being adsorbed due to the distribution particularity of magnetic induction lines. The scheme is to utilize the property of the magnet and arrange the upper and lower magnetic blocks which can attract each other, so that the circular die can be accurately positioned on the base through the glass plate. This scheme simple structure, convenient operation has very high positioning accuracy moreover.

Drawings

Fig. 1 is a schematic perspective view of a preferred embodiment of the present invention;

fig. 2 is a half sectional view of a preferred embodiment according to the present invention;

fig. 3 is an exploded view of a preferred embodiment according to the present invention;

fig. 4 is a schematic perspective view of a circular mold according to a preferred embodiment of the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

As shown in fig. 1 to 4, in order to provide a preferred embodiment of the present invention, the present invention comprises a base 1, a support 2 disposed on the base 1, and a test bar 3 disposed on the support 2 along a vertical direction, wherein a glass plate 4 and a circular mold 5 are sequentially disposed on the base 1; the key points are as follows:

the central position of the base 1 is fixedly provided with a lower magnetic block 6, the central position of the circular die 5 is fixedly provided with an upper magnetic block 7, when the circular die 5 is placed above the base 1, the lower magnetic block 6 and the upper magnetic block 7 can attract each other, and when the lower magnetic block 6 and the upper magnetic block 7 are mutually adsorbed to be static, the center of the circular die 5 is positioned under the test rod 3.

In this embodiment, the lower magnetic block 6 and the upper magnetic block 7 are circular structures that can be completely overlapped. A lower circular groove 11 is formed above the base 1, the lower magnetic block 6 is arranged in the lower circular groove 11, and the lower magnetic block 6 is flush with the upper end surface of the base 1; an upper circular groove 51 is formed below the circular die 5, the upper magnetic block 7 is installed in the upper circular groove, and the lower end faces of the upper magnetic block 7 and the circular die 5 are flush.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A consistency condensation tester comprises a base, a bracket arranged on the base, and a test rod arranged on the bracket along the vertical direction, wherein a glass plate and a circular mold are sequentially placed on the base; the method is characterized in that:

2. The consistency coagulation meter of claim 1, wherein: the lower magnetic block and the upper magnetic block are of circular structures which can be completely overlapped.

3. The consistency coagulation meter of claim 2, wherein: a lower circular groove is formed above the base, the lower magnetic block is arranged in the lower circular groove, and the lower magnetic block is flush with the upper end face of the base; an upper circular groove is formed below the circular die, the upper magnetic block is installed in the upper circular groove, and the lower end faces of the upper magnetic block and the circular die are flush.