CN205066610U - A sliding type concrete prism method alkali activity micrometer - Google Patents

Abstract

The utility model discloses a sliding concrete prism method alkali activity micrometer, including the base, the equal rigid coupling in base both ends has the screw rod of vertical arrangement, installs slide A and slide B on the screw rod of both sides respectively, all opens the slide hole corresponding with the screw rod on slide A and the slide B, and the inboard middle part rigid coupling of slide A has the ejector pin, and open in the middle part of slide B has the through-hole, and the through-hole interpolation is equipped with the amesdial and fixed through the knob on top; a plurality of supporting rods are fixedly connected to the middle of the base, idler wheels are hinged to the top ends of the supporting rods, and a sliding plate is placed above the idler wheels. The utility model can be adjusted according to test pieces with different sizes and sizes, and has a wide application range; and can also carry out slight adjustment when carrying out the test piece measurement of big quality, can not lead to test piece or meticulous amesdial to damage, use the flexibility high.

Description

A sliding type concrete prism method alkali activity micrometer

technical field

The utility model relates to the field of measuring instruments and equipment in concrete alkali activity tests, in particular to a micrometer, in particular to a sliding concrete prism method alkali activity micrometer.

Background technique

At present, there are roughly two types of equipment for measuring the alkali activity of concrete prism method specimens, one is a mechanical equipment called a bow micrometer, and the other is an electronic display digital equipment called a ratio meter. The mechanical type has problems such as large error and inconvenient operation, so at present, the ratio meter is generally used. The current ratio meter includes a base plate, and two rectangular cast iron blocks perpendicular to it are respectively fixed at both ends of the base plate. There is a hole on the cast iron block. After inserting the electronic dial gauge into the hole, fix it with a screw. There is also a hole at the other end. Insert a cylindrical alloy rod into the hole. The space between the two alloy rods That is to measure the placement space of the test piece. When measuring the test piece, put the test piece directly on the bottom plate of the ratio meter, and then adjust the piece slightly so that the test piece just touches the alloy rod, and then take a reading. However, due to the large size of the test piece for the alkali activity measurement of the concrete prism method, and the weight is generally about 3kg, it becomes very difficult to fine-tune the piece in the axial direction with the traditional ratio meter. If the force is too large, the precise electronic instrument will be damaged. sub table. In addition, although the measurement process and data processing of the alkali activity test piece by the mortar rod rapid method are similar to those of the alkali activity test piece by the concrete prism method, it should be possible to use a set of equipment to complete it. However, because the size of the mortar rod rapid method alkali activity test piece is very different from that of the concrete prism method alkali activity test piece, so in reality, when we measure the two kinds of alkali activity test pieces, we need to use two specifications, Instruments of different sizes. This creates unnecessary waste.

Utility model content

The utility model aims to provide a sliding type concrete prism method alkali activity micrometer to solve the problem that the size of the traditional ratio meter is fixed and cannot measure test pieces of various sizes, and the traditional ratio meter cannot Applicable to problems with large specimens.

The utility model is achieved through the following technical solutions:

A sliding type concrete prism method alkali activity micrometer, including a base, both ends of the base are fixed with vertically arranged screw rods, the screw rods on both sides are respectively installed with sliding seat A and sliding seat B, sliding seat A and There are sliding holes corresponding to the screw on the sliding seat B, the middle part of the inner side of the sliding seat A is fixedly connected with the ejector rod, and the middle part of the sliding seat B is opened with a through hole, and a dial gauge is inserted in the through hole and fixed by the knob on the top. The middle part of the base is fixedly connected with several poles, the top of the poles is hinged with rollers, and a skateboard is placed above the rollers.

Two slide rails are arranged on the bottom surface of the slide plate, and the rollers are embedded in the slide rails.

Both the sliding seat A and the sliding seat B are fixed on the screw rod through nuts.

A vertically arranged baffle is fixedly connected to the rear side of the base.

The outer circular surface of the roller is covered with rubber.

There are four screws and they are arranged symmetrically at both ends of the base.

The beneficial effects of the utility model are:

Compared with the prior art, the sliding concrete prism method alkali activity micrometer provided by the utility model installs the sliding seat A and the sliding seat B through the screw and the nut, and can realize that the sliding seat A and the sliding seat B are in the vertical direction. adjustment, and then realize the adjustment of the horizontal direction of the skateboard through the skateboard and rollers, that is, the utility model can be adjusted according to different sizes and sizes of test pieces. Compared with the traditional micrometer that cannot be adjusted, the utility model has a larger Scope of application; and fine adjustments can also be made when measuring large-scale test pieces, without causing damage to test pieces or fine dial gauges, and have high flexibility in use.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the front view of sliding seat A in the utility model;

Fig. 4 is the top view of Fig. 3;

Fig. 5 is the left view of Fig. 3;

Fig. 6 is the front view of sliding seat B in the utility model;

Figure 7 is a top view of Figure 6;

Fig. 8 is a left view of the slide seat B installed with a dial gauge in the utility model;

Fig. 9 is a structural diagram of a roller in the utility model;

In the figure: 1-slider A, 2-ejector, 3-sliding hole, 4-slider B, 5-knob, 6-through hole, 7-nut, 8-slider, 9-slide rail, 10-screw , 11-baffle, 12-roller, 13-dial indicator, 14-strut, 15-base, 16-rubber.

detailed description

Below in conjunction with accompanying drawing and embodiment the technical scheme of the present utility model will be further described, but the required protection scope is not limited to the description;

As shown in Figure 1-9, the sliding concrete prism method alkali activity micrometer provided by the utility model comprises a base 15, and the two ends of the base 15 are fixedly connected with vertically arranged screw rods 10, and the Sliding seat A1 and sliding seat B4 are respectively installed on the screw 10, and sliding holes 3 corresponding to the screw 10 are opened on both sliding seat A1 and sliding seat B4. There is a through hole 6 in the middle, and a dial indicator 13 is inserted in the through hole 6 and fixed by the knob 5 at the top; a plurality of poles 14 are fixedly connected to the middle of the base 15, and the top of the pole 14 is hinged with a roller 12, and the roller 12 A slide plate 8 is placed above.

In order to prevent the sliding plate 8 from moving back and forth and causing the measurement of the test piece placed on it to be inaccurate, the bottom surface of the sliding plate 8 is provided with two slide rails 9 , and the rollers 12 are embedded in the slide rails 9 .

Both the sliding seat A1 and the sliding seat B4 are fixed on the screw rod 10 through the nut 7, which not only can be adjusted quickly but also has the advantage of low cost.

The rear side of the base 15 is fixedly connected with a vertically arranged baffle 11, through which the test piece placed on the slide 8 can be limited to prevent it from falling.

In order to improve the frictional force and avoid slipping, the outer surface of the roller 12 is wrapped with a rubber 16 .

In order to prevent the sliding seat A1 and the sliding seat B4 from rotating on the screw rod 10 , there are four screw rods 10 symmetrically arranged at both ends of the base 15 .

Embodiment: When in use, first put the standard rod (shown in the figure) of the instrument on the slide plate 8, then adjust the slide seat A1 and the slide seat B4, so that the push rod 2 and the dial indicator 13 are just aligned with the standard rod ; Then tighten the nuts 7 on the upper and lower sides of the slider A1 and the slider B4, so that the slider A1 and the slider B4 are fixed; then adjust the dial indicator 13 to the appropriate range and clear it. Finally, put the test piece on the slide plate 8, move the slide plate 8 slightly, and the slide plate 8 can slide on the roller 12 through the slide rail 9, so that the metal probe of the test piece just touches the ejector rod 2, and then it can pass the dial indicator 13 Take a reading to complete the measurement.

The above-mentioned embodiment is only a preferred embodiment of the utility model, and is not used to limit the protection scope of the utility model. Protection scope of utility model.

Claims (6)

1. A sliding concrete prism method alkali activity micrometer, comprising a base (15), is characterized in that: the two ends of the base (15) are all fixedly connected with a vertically arranged screw rod (10), Sliding seat A (1) and sliding seat B (4) are respectively installed on the screw rod (10), and both sliding seat A (1) and sliding seat B (4) have sliding holes corresponding to the screw rod (10) ( 3), the middle part of the inner side of the sliding seat A (1) is fixedly connected with the ejector rod (2), the middle part of the sliding seat B (4) is opened with a through hole (6), and the through hole (6) is inserted with a dial gauge (13) And fixed by the knob (5) at the top; the middle part of the base (15) is fixedly connected with some poles (14), the top of the pole (14) is hinged with rollers (12), and a slide plate (12) is placed above the rollers (12). 8). 2. The sliding concrete prism method alkali activity micrometer according to claim 1, characterized in that: two slide rails (9) are provided on the bottom surface of the slide plate (8), and the rollers (12) are embedded into the slide rail (9). 3. the sliding concrete prism method alkali activity micrometer according to claim 1, is characterized in that: described sliding seat A (1) and sliding seat B (4) are all fixed on screw rod ( 10) on. 4. The sliding concrete prism method alkali activity micrometer according to claim 1, characterized in that: a vertically arranged baffle (11) is fixedly connected to the rear side of the base (15). 5. The sliding concrete prism method alkali activity micrometer according to claim 1, characterized in that: the outer circular surface of the roller (12) is wrapped with rubber (16). 6. The sliding type concrete prism method alkali activity micrometer according to claim 1, characterized in that: there are four screws (10) and they are arranged symmetrically at both ends of the base (15).