CN86210477U

CN86210477U - Multi-functional spring scale

Info

Publication number: CN86210477U
Application number: CN 86210477
Authority: CN
Inventors: 任玉兰; 雷光新; 饶斌
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-12-17
Filing date: 1986-12-17
Publication date: 1987-12-23

Abstract

The utility model discloses a multi-functional spring balance which has range sorting more than the range sorting of the existing spring balance and has the memory, and has the multiple functions that the multifunction spring balance can be lifted, pulled, pushed and pressed when measuring the stress. The utility model has the advantages of simple structure, convenient operation, high reliability, convenient operation, multiple functions, precision assurance, and clear reading. The multi-functional spring balance is especially suitable for the break experiment on each material (or structure), and can memorize the instant loading value when breaking on time. When the force (or weight) whose value is intervallic is needed to be respectively measured, due to the fact that the multi-functional spring balance has a plurality of sorting, and the precision is ensured, the multi-functional spring balance becomes a portable weighing convenient balance which is popular among the people.

Description

Multi-functional spring scale

The present invention relates to a kind of dynamometer, particularly to the greatly different in size force measurement and the device of memory.

In existing spring balance, because it has only a working spring.For this reason, it can only adapt to the force measurement in the narrow scope.Obviously, do not survey greater than the power of this scope, less than the power in this scope, though can survey, inaccurate, power is more little inaccurate more.Even can not survey.If the spring balance that maximum range is 5 kilograms is not surveyed greater than 5 kilograms power,, do not come out with regard to indeterminacy or survey less than the power (as a few gram tens grams) of minimum scale.Equally, the spring balance of maximum range 100 gram is also like this, big survey not, too small also indeterminacy or survey not come out.Also there is similar problem in the spring balance that promptly is 50 kilograms.Survey the bigger power of several great disparities, spring balance that must the several different ranges of usefulness.If it is all right to solve problem with a spring balance, moreover existing spring balance can not write down measurement result, when particularly moment was stressed, reading was just more difficult.As in impact or fracture experiment, measuring the busy hour of material, more outstanding.Material is in the fracture moment of maximum weighted, and spring has also resetted rapidly thereupon, is difficult to see clearly read accurate stressed size, and existing spring balance can not be surveyed thrust.

To this, purpose of the present invention just provides a kind of multirange scope, memory is arranged, can push away, draw the multi-function device of dynamometry, and it is simple in structure, easy to operate, error reduces.

Invention is to realize like this, scale sign on rule (12) rule (12) that different ranges are housed on the base plate (2) is corresponding with the range of selected control spring (5,6,7), there are two guided ways base plate (2) both sides, the back side, and memory plate (10) can be free to slide on the guided way of base plate (2).A gauge tap seat is equipped with on base plate (2) top, gauge tap seat one side has a groove, and the other end connects gauge tap (3,4) with pin, makes gauge tap (3,4) make 180 degree around pin and rotates, when pushing the control position in the switch card entry slot, so that the connection of control spring.Control spring (5,6,7) is one group of spring selecting for use drawing coefficient different with diameter, and can be sleeved on together, the end and the mouth hanging (8) that are sleeved on groups of springs together are fixed together, the other end of the spring (5) of diameter minimum are fixed on the top of base plate (2).Pull bar (11) can be from the upper end of mouth hanging (8) or the lower end screw in, when screwing in,, when screwing in, then be the measurement pulling force then from the lower end for measuring thrust from the upper end.When gauge tap (3,4) when being shown in an open position, because have only the minimum spring of diameter (5) to be fixed on the top of base plate (2), at this moment be a spring stress, dynamometry is less; When switch (3) when pushing off-position, switch (3) also is fixed on spring (6) base plate (2) upper end, and at this moment two springs (5,6) are simultaneously stressed, and dynamometry is bigger; Again switch (4) when also pushing off-position, just can also be fixed on spring (7) upper end of base plate (2), at this moment three springs are simultaneously stressed, and dynamometry is just bigger.Memory storage is a shell fragment that can slide flexibly, is installed in the place ahead of pointer, and pointer is walked thereunto and just it shifted onto the there, and its indication is consistent with pointer.When pointer falls back or gets back to original position.It is still stayed the there and writes down the position that pointer had arrived, thus the measurement result of noting, and readability is clear, when reusing, only needs that it is pushed into top and just can bring into play memory function once more.

Concrete structure of the present invention is provided by following examples accompanying drawing: figure one is its front view (FV), in 1 handle, 2 base plates (shell), 3,4, the wide range switch, 5,6,7 little, in, the wide range spring, 8 springs and pull bar mouth hanging, 9 pointers, 10 memory plate, 11 pull bars, 12 rules.

Look the purposes difference, can design the usefulness of the spring balance of the range of different size and different shells according to the principle of the invention for teaching, experiment and meter weight.

Claims

1, a kind of have a multirange, can remember, can push away, draw the multi-function spring scale of dynamometry, it is characterized in that: the rule (12) that different ranges are housed on base plate (2), memory plate (10), control selector switch (3,4), an end of one group of control spring (5,6,7) is connected with an end of base plate (2), the other end is fixed on mouth hanging (8) and locates, and pull bar (11) can screw in from mouth hanging (8) upper end or from the lower end.

2, device according to claim 1 is characterized in that control spring (5,6,7) is that one group of diameter is inequality, and measurement parameter spring inequality and that can be sleeved on is together formed.

3, device according to claim 1, it is characterized in that gauge tap (3,4) can freely select the control spring (5,6,7) of different ranges.

4, device according to claim 1 is characterized in that having on the graduated scale (12) and the corresponding scale sign of control spring (5,6,7).

5, device according to claim 1, it is characterized in that memory plate (10) can be on base plate (2) the upper and lower shell fragment that is free to slide.