CN202101626U

CN202101626U - Comparator

Info

Publication number: CN202101626U
Application number: CN201120166933XU
Authority: CN
Inventors: 孟渊; 徐锡中; 马天凤
Original assignee: WUXI JIANYI INSTRUMENT MACHINERY CO Ltd
Current assignee: WUXI JIANYI INSTRUMENT MACHINERY CO Ltd
Priority date: 2011-05-24
Filing date: 2011-05-24
Publication date: 2012-01-04
Anticipated expiration: 2021-05-24

Abstract

The utility model relates to a comparator for measuring longitudinal limited expansion ratio and longitudinal limited dry shrinkage ratio of compensating concrete. The comparator comprises a slanting base with baffles at two ends. A dial indicator is fixed on one baffle, a long support leg and a short support leg are arranged at the bottom of the base, the short support leg is fixed to the bottom of the base, the long support leg is hinged to the bottom of the base, and the dial indicator is in a high-precision digital display type. The long support leg is in a hinged structure, retractable and convenient to store and place. By using the high-precision digital display dial indicator, reading is direct, data are more accurate, and reliability is higher. The comparator is simple in structure and convenient to operate.

Description

A kind of comparator

Technical field

The utility model relates to the vertical limited expansion rate of measuring compensating concrete and the special testing instrument that vertically limits contract with dry rate, and specifically a kind of comparator belongs to the testing equipment technical field.

Background technology

Comparator is a kind of be used to measure vertical limited expansion rate of compensating concrete and special testing instrument that vertically limits contract with dry rate, in order to confirm the use amount of cement expansive material in engineering, mainly contains vertical or horizontal two kinds of structures.Vertical structure comparator, test specimen are placed and are difficult for the centering adjustment line, and test repeatability is relatively poor; Be prone to ponding in the horizontal type structure comparator, pedestal V-shaped groove, be unfavorable for experiment.Stipulated a kind of concrete expansion contraction measuring instrument among the GB 50119-2003 " Technical code for application of admixture in concrete "; This instrument mainly comprises pedestal and clock gauge; And become 30 ° of angles to place with flat surface pedestal, solved the shortcoming of the comparator of existing vertical or horizontal type structure.But also there is following shortcoming in this instrument: 1, the supporting leg of pedestal is fixed, causes the whole instrument volume big, is unfavorable for vanning, takes in; 2, clock gauge is the mechanical type instrument, inconvenient reading, and low precision.Adopt displacement transducer though there is the part instrument to measure with clock gauge, through circuit design, numeral shows, complex structure, and increased design, processing cost, the waste resource.

Summary of the invention

The utility model is to the deficiency of above-mentioned prior art, and a kind of comparator of casing, taking in be convenient to is provided.

The technical scheme that provides according to the utility model; A kind of comparator comprises the pedestal of the inclination of two ends band baffle plate wherein being fixed with clock gauge on a said baffle plate; The bottom of said pedestal is provided with long leg and short supporting leg, and said short supporting leg is fixed on the bottom of said pedestal; Said long leg is hinged on the bottom of said pedestal.

Perpendicular to the baseplane of said pedestal, said short supporting leg was perpendicular to the detection platform face when said long leg was opened.

When said long leg was opened, said pedestal became 30 ° of inclination angles with the detection platform face.

Said pedestal is the V-shaped groove structure.

Be furnished with par on the said pedestal, said par is placed on the said pedestal through the par frame plate.

Said clock gauge is the high accuracy number display type.

Said clock gauge is fixed on through holding screw on the left side baffle plate of said pedestal, and its measuring head is between two baffle plates of said pedestal.

Compared with present technology the utility model has the following advantages: the long leg of the utility model is an articulated structure, can pack up, and is convenient to take in placement; Adopt the high precision digital display dial gauge, reading is direct, and data are more accurate, and reliability is stronger.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment

Embodiment below in conjunction with in the accompanying drawing is further described the utility model.

Among Fig. 1, comprise long leg 1, left side baffle plate 2, clock gauge 3, holding screw 4, measuring head 5, par 6, pedestal 7, par frame plate 8, right side baffle plate 9, short supporting leg 10, bearing pin 11 etc.

As shown in Figure 1, the utility model is a kind of comparator, comprises that 7 two baffle plates of pedestal of the inclination of two ends band baffle plate are respectively left side baffle plate 2 and right side baffle plate 9, and left side baffle plate 2 is positioned at the high-end of pedestal 7, and right side baffle plate 9 is positioned at the low side of pedestal 7.Be fixed with clock gauge 3 through holding screw 4 on the baffle plate 2 of left side, the measuring head 5 of clock gauge 3 is between two baffle plates of pedestal 7.Clock gauge 3 is the high accuracy number display type, is easy to reading, and precision is high.

The bottom of pedestal 7 is provided with long leg 1 and short supporting leg 10; Short supporting leg 10 is fixed on the bottom of pedestal 7, is provided with perpendicular to the detection platform face; Long leg 1 is hinged on the bottom of pedestal 7 through bearing pin 11, and when long leg 1 was opened, long leg 1 was perpendicular to the baseplane of pedestal 7, and pedestal 7 becomes 30 ° of inclination angles with the detection platform face, when long leg 1 is packed up, can reduce instrument and take up space, and is convenient to place.

Also be furnished with par 6 on the pedestal 7, par 6 is placed on the pedestal 7 through par frame plate 8.Par 6 is as the standard length of instrument, in order to rectify an instrument, to locate the clock gauge position.

Pedestal 7 is the V-shaped groove structure, and it is good to have neutrality, is easy to lay advantages such as test block, is used to lay test block and par 6.

The course of work of the utility model is following: 1, instrument and par 6 be placed in 3 hours before use in 20 ℃ ± 2 ℃ the measuring chamber, prop long leg 1; 2, measure before with par 6 and frame plate 8 gauge length in the V-shaped groove of pedestal 7 together, unscrew clock gauge 3 holding screws 4, adjusting clock gauge 3 positions make measuring head 5 end faces touch par 6 bulbs, tighten holding screw 4, fixedly clock gauge 3.Zero clearing clock gauge 3 shifts out par 6; 3, place concrete sample with the method for similar placement par 6; 4. write down the length of concrete sample, single test finishes.

The utlity model has following advantage: 1, long leg is an articulated structure, can pack up, and is convenient to take in placement; 2, adopt the high precision digital display dial gauge, reading is direct, and data are more accurate, and reliability is stronger; 3, use is easy to operate; 4, simple in structure, make things convenient for producer to make and produce.

Claims

1. comparator; The pedestal (7) that comprises the inclination of two ends band baffle plate; Wherein be fixed with clock gauge (3) on a said baffle plate; The bottom of said pedestal (7) is provided with long leg (1) and short supporting leg (10), and said short supporting leg (10) is fixed on the bottom of said pedestal (7), it is characterized in that: said long leg (1) is hinged on the bottom of said pedestal (7).

2. according to the described a kind of comparator of claim 1, it is characterized in that: perpendicular to the baseplane of said pedestal (7), said short supporting leg (10) is perpendicular to the detection platform face when opening for said long leg (1).

3. according to the described a kind of comparator of claim 1, it is characterized in that: said long leg (1) is when opening, and said pedestal (7) becomes 30 ° of inclination angles with the detection platform face.

4. according to the described a kind of comparator of claim 1, it is characterized in that: said pedestal (7) is the V-shaped groove structure.

5. according to the described a kind of comparator of claim 1, it is characterized in that: be furnished with par (6) on the said pedestal (7), said par (6) is placed on the said pedestal (7) through par frame plate (8).

6. according to the described a kind of comparator of claim 1, it is characterized in that: said clock gauge (3) is the high accuracy number display type.

7. according to the described a kind of comparator of claim 1, it is characterized in that: said clock gauge (3) is fixed on through holding screw (4) on the left side baffle plate (2) of said pedestal (7), and its measuring head (5) is positioned between two baffle plates of said pedestal (7).