CN201397175Y - Self-checking T-square - Google Patents

Abstract

The utility model relates to a self-checking T-square which comprises a handle, a horizontal cross beam and a vertical ruler, wherein the cross beam and the straight ruler are vertically and fixedly connected, the lower end surface of the cross beam is horizontal, the length is bigger than the diameter of the cap caliber of a tanker of an automobile, the straight ruler is provided with scale marks, the zero point is arranged on the lower end surface of the cross beam, the indication gradually increases from the top down, a gusset plate for self-checking is arranged on the joint of the cross beam and the straight ruler, and comprises a cross beam connecting end and a straight ruler connecting end, the cross beam connecting end is fixedly connected with the cross beam, the ruler connecting end is fixedly connected with the straight ruler, and is provided with scale marks, the zero point is arranged on the lower end surface of the cross beam, and the indication gradually increases from the top down. The connection between the cross beam and the straight ruler is firmer, which can realize zero error between the cross beam and the straight ruler through visual checking, is convenientfor finding and correcting zero error, and improves the accuracy of the T-square in use process. The self-checking T-square has reasonable design, simple structure and excellent market outlook.

Description

The self-monitoring T-square

Technical field

The utility model relates to a kind of measurement instrument, is specifically related to a kind of self-monitoring T-square.

Background technology

Present oil measurement comprises human metering and automatic gauge.The metering of bulk product, with the basic skills of manual measurement as metering, simple, the obtained data of human metering device therefor also compare accurately.T-square is a kind of instrument of examining and determine liquid level in automobile tank body capacity and the metering truck tank, and the spatial altitude that utilizes T-square to measure liquid level in the tank car can calculate the actual capacity of dress liquid in the jar.

Existing T-square mostly is copper or aluminium is cast, its structure is made of jointly handle 1, horizontal gird 2 and vertical ruler 3 as shown in Figure 1, and crossbeam 2 is vertical mutually affixed by fixed screw with ruler 3, the lower surface of crossbeam 2 is level, and length is slightly larger than truck tank cap bore diameter; The zero point of ruler 3, indicating value from up to down increased progressively at the place, lower surface of crossbeam 2.Whether crossbeam is vertical definite with try square and clearance gauge with ruler during use; Whether ruler is determined with reading microscope in the crossbeam lower surface zero point.

In the practice, T-square all needs to examine and determine in some cycles.This is that aluminum is softer, uses the easy modification in junction for a long time, and then causes the ruler zero-bit to move because the junction of crossbeam 2 and ruler 3 mostly is copper aluminium is connected, and the mutual out of plumb of crossbeam and ruler very easily produces error during use.The source of error mainly contains following three kinds: 1, the mutual verticality generation of crossbeam and ruler deviation; 2, ruler is offset zero point; 3, crossbeam is connected insecurely with ruler, occurs loosening.Owing to ruler will be goed deep into oil tank (car) cap mouth when using T-square, crossbeam is rested on the cap mouth appointed positions simultaneously, ruler sole mass made of copper is bigger, and the generation that also causes above-mentioned error is easily put, lifted in regular putting.When these errors produced, except that loosening having the feel appears in crossbeam and ruler junction, all the other two kinds of errors must be examined and determine by specific instrument by visual very difficult resolution, can both revise in the time of can't being implemented in each use.In view of this, it is more firm that the inventor is devoted to design a kind of connection, can estimate the T-square of perceiveing when error takes place, to solve the defective that exists in the prior art.

Summary of the invention

The purpose of this utility model is to overcome the defective of above-mentioned prior art on degree of being connected firmly and range estimation error, provides a kind of simple in structure, easy to use, can estimate the self-monitoring T-square of error.

For reaching above-mentioned purpose, the utility model has adopted following technical scheme:

A kind of self-monitoring T-square, form by handle, horizontal gird and vertical ruler, crossbeam is vertical mutually affixed with ruler, the lower surface of crossbeam is level, and length is greater than truck tank cap bore diameter, and ruler is provided with scale mark, zero point is at the place, lower surface of crossbeam, indicating value from up to down increases progressively, and the junction of its middle cross beam and ruler is provided with a self check gusset plate, is made up of crossbeam link and ruler link; Crossbeam link and crossbeam Joint; Ruler link and ruler Joint which is provided with scale mark, and zero point, indicating value from up to down increased progressively at the place, lower surface of crossbeam.

The utility model can also adopt following technical scheme further to realize:

Described self-monitoring T-square, wherein, described gusset plate is a up/down steps formula structure, and the crossbeam link is positioned under the step, and the ruler link is positioned on the step, and the ruler link is provided with for the vertical groove that embeds of ruler;

Described self-monitoring T-square, wherein, the profile of described ruler is a rectangle, groove is a rectangular groove that matches with the ruler shape or positive square groove;

Described self-monitoring T-square, wherein, the profile of described ruler is

Shape, groove are two rectangular grooves parallel to each other, that match with the ruler dual-side;

Described self-monitoring T-square, wherein, the scale mark on the described ruler link is located at the outside of groove;

Described self-monitoring T-square, wherein, the side of described ruler link is offered top wire hole, by jackscrew with gusset plate and ruler Joint;

Described self-monitoring T-square wherein, is offered screw on the described crossbeam link, by screw with crossbeam, ruler and gusset plate three bolt;

Described self-monitoring T-square, wherein, described gusset plate is the hard copper coin.

Owing to adopted above technical scheme, the utility model possesses following technique effect:

1, self-monitoring T-square of the present utility model increases by a gusset plate in the junction of crossbeam and ruler, makes crossbeam more firm with being connected of ruler, not changeableness;

2, self-monitoring T-square of the present utility model, gusset plate adopts up/down steps formula structure, the crossbeam link is positioned under the step, the ruler link is positioned on the step, the ruler link is provided with for the vertical groove that embeds of ruler, ruler has increased the steadiness after connecting by forming a crack with the crossbeam junction behind the groove;

3, self-monitoring T-square of the present utility model is provided with top wire hole in the both sides of gusset plate, gusset plate and ruler is reinforced at this by jackscrew, not only increases steadiness, and is convenient to adjust the ruler position;

4, self-monitoring T-square of the present utility model, the ruler link of gusset plate is provided with scale mark, and when ruler and crossbeam were perpendicular, scale mark on the ruler link and ruler high scale line aligned; When error appears in ruler and crossbeam, the zero point that is ruler is not when the lower surface of crossbeam, be easy to find that by range estimation the scale mark of the ruler link of gusset plate can not align mutually with the scale mark of ruler, and then the zero-error of realization visual detection crossbeam and ruler, be convenient to find and correct zero-error, improved the accuracy of T-square;

5, self-monitoring T-square of the present utility model, gusset plate adopt the hard copper coin, not only play reinforcement effect and can prolong serviceable life of T-square;

6, self-monitoring T-square of the present utility model is reasonable in design, simple in structure, easy to use, is easy to manufacture, and market outlook are good.

Description of drawings

Fig. 1 is the structural representation of existing T-square;

Fig. 2 is the structural representation of the utility model self-monitoring T-square;

Fig. 3 is the structural representation of the utility model T-square gusset plate.

Among the figure: 1, handle; 2, crossbeam; 3, ruler; 4, gusset plate; 4-1, crossbeam link; 4-2, support link; 4-3, groove; 4-4, top wire hole; 4-5, screw.

Embodiment

Describe the utility model in detail below in conjunction with accompanying drawing 2-3.

Referring to Fig. 2 and shown in Figure 3: a kind of self-monitoring T-square, to form by handle 1, horizontal gird 2 and vertical ruler 3, crossbeam 2 is vertical mutually affixed with ruler 3, and the lower surface of crossbeam 2 is level, and length is greater than truck tank cap bore diameter; Ruler 3 is provided with scale mark, and zero point, indicating value from up to down increased progressively at the place, lower surface of crossbeam 2; Crossbeam 2 is provided with self check gusset plate 4 with the junction of ruler 3, and gusset plate 4 is the hard copper coin, is made up of crossbeam link 4-1 and ruler link 4-2; Be up/down steps formula structure, crossbeam link 4-1 is positioned under the step, with crossbeam 2 Joints; Ruler link 4-2 is positioned on the step, with ruler 3 Joints, support link 4-2 to be provided with scale mark, zero point, indicating value from up to down increased progressively at the place, lower surface of crossbeam 2.

Further, can be provided with on the ruler link 4-2 for the vertical groove 4-3 that embeds of ruler, the shape of groove matches with the ruler shape.Profile as ruler 3 is a rectangle, and then groove 4-3 is rectangular groove or positive square groove; If the profile of ruler 3 is

Shape, then groove 4-3 is two rectangular grooves (as shown in Figure 3) parallel to each other, that match with ruler 3 dual-sides.Scale mark on the ruler link 4-3 is arranged on the outside of groove 4-3.

Further, also can offer top wire hole 4-4 at the side of ruler link 4-2, by jackscrew with gusset plate 4 and ruler 3 Joints; On crossbeam link 4-1, offer screw 4-5, crossbeam 2, ruler 3 are screwed onto with gusset plate 4 threes by screw.

Gusset plate 4 also can not adopt staircase structural model, and groove is not set; Its shape is not limit, and can be any geometric configuratioies such as rectangular parallelepiped, square, right cylinder.

The above is preferred embodiment of the present utility model only, is not that the utility model is done any pro forma qualification.Any change that is equal to, modification or differentiation etc. that all those skilled in the art utilize the technical solution of the utility model that the foregoing description is made all still belong in the scope of the technical solution of the utility model.

Claims (8)

1, a kind of self-monitoring T-square, form by handle (1), horizontal gird (2) and vertical ruler (3), crossbeam (2) is vertical mutually affixed with ruler (3), the lower surface of crossbeam (2) is level, length is greater than truck tank cap bore diameter, and ruler (3) is provided with scale mark, and zero point is at the place, lower surface of crossbeam (2), indicating value from up to down increases progressively, and it is characterized in that:

Crossbeam (2) is provided with a self check with gusset plate (4) with the junction of ruler (3), forms by crossbeam link (4-1) and ruler link (4-2),

Crossbeam link (4-1) and crossbeam (2) Joint;

Ruler link (4-2) and ruler (3) Joint which is provided with scale mark, and zero point, indicating value from up to down increased progressively at the place, lower surface of crossbeam (2).

2, self-monitoring T-square according to claim 1 is characterized in that:

Described gusset plate (4) is a up/down steps formula structure, and crossbeam link (4-1) is positioned under the step, and ruler link (4-2) is positioned on the step, and ruler link (4-2) is provided with for the vertical groove (4-3) that embeds of ruler (3).

3, self-monitoring T-square according to claim 2 is characterized in that:

The profile of described ruler (3) is a rectangle, and groove (4-3) is a rectangular groove that matches with the ruler shape or positive square groove.

4, self-monitoring T-square according to claim 2 is characterized in that: the profile of described ruler (3) is

Shape, groove (4-3) are two rectangular grooves parallel to each other, that match with the ruler dual-side.

5, according to arbitrary described self-monitoring T-square among the claim 2-4, it is characterized in that:

Scale mark on the described ruler link (4-2) is located at the outside of groove (4-3).

6, according to arbitrary described self-monitoring T-square among the claim 1-4, it is characterized in that:

The side of described ruler link (4-2) is offered top wire hole (4-4), by jackscrew with gusset plate (4) and ruler (3) Joint.

7, according to arbitrary described self-monitoring T-square among the claim 1-4, it is characterized in that:

Offer screw (4-5) on the described crossbeam link (4-1), by screw with crossbeam (2), ruler (3) and gusset plate (4) three's bolt.

8, according to arbitrary described self-monitoring T-square among the claim 1-4, it is characterized in that:

Described gusset plate (4) is the hard copper coin.

Images