The adjustable spring of a kind of elasticity
Technical field
The utility model relates to the adjustable spring of a kind of elasticity.
Background technique
Spring is a kind of mechanical parts utilizing elasticity to carry out work.There is deformation under external force with the part that elastic material is made, restore to the original state again after removing external force.Also " spring " is made.General spring steel is made.The kind complexity of spring is various, divides by shape, mainly contains helical spring, spiral spring, leaf spring, heterotypic spring etc.
F=kx, F are elastic force, and k is [coefficient of, and x is the length of spring elongation, and generally, the length of spring is if fixing, and elastic force is exactly fixing, when needing the elasticity changing spring, need to change spring.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of spring that can regulate elastic force.
For solving the problem, the utility model provides the adjustable spring of a kind of elasticity, comprises and becomes columned spring body by strip shape body helical buckling, it is characterized in that, also comprise:
-regulator plate, it is at least provided with two pieces, and described regulator plate to be set on described spring body and can to do circumference along the partial contour face of described strip shape body and slides, and the opposing side of two described regulator plates is also equipped with the annular groove with described spring body coaxial line;
-adjustable lever, it is at least provided with one and can stretches vertically, and the two ends of described adjustable lever are spacing respectively can slide along the circumference of described annular groove in described annular groove, described adjustable lever is also provided with the fixing device that can limit its axial dimension.
As further improvement of the utility model spring, it is characterized in that, described adjustable lever comprises two can point body of rod of relative sliding vertically, and described in two, one end of point body of rod is separately positioned in described annular groove.
As further improvement of the utility model spring, it is characterized in that, described fixing device is the clamp device being fixed on the described point of adjacent body of rod and the described point of body of rod can being clamped.
As further improvement of the utility model spring, it is characterized in that, the described point of body of rod is provided with through bar-shaped trough, is communicated with at least partly between adjacent described bar-shaped trough.
As further improvement of the utility model spring, it is characterized in that, described clamp device comprises the bolt that can slide in described bar-shaped trough and the nut coordinated with described bolt thread, described bolt one end is provided with the head that radial direction is widened, and the radial overall dimensions of the those widened sections of described nut and head is greater than the width of described bar-shaped trough.
The beneficial effects of the utility model are, the utility model can not change spring, changes the elastic force of spring when not changing its length.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Wherein: 2-strip shape body; 4-spring body; 6-regulator plate; 8-annular groove; 10-adjustable lever; 12-divides the body of rod; 14-bar-shaped trough; 16-bolt; 18-nut; 20-head.
Embodiment
Below embodiment of the present utility model is described in further detail.
As shown in Figure 1, the utility model comprises and becomes columned spring body 4 by strip shape body 2 helical buckling, it is characterized in that, also comprises:
-regulator plate 6, it is at least provided with two pieces, described regulator plate 6 to be set on described spring body 4 and can to do circumference along the partial contour face of described strip shape body 2 and slides, and the opposing side of two described regulator plates 6 is also equipped with the annular groove 8 with described spring body 4 coaxial line;
-adjustable lever 10, it is at least provided with one and can stretches vertically, the two ends of described adjustable lever 10 are spacing respectively can slide along the circumference of described annular groove in described annular groove 8, and described adjustable lever 10 is also provided with the fixing device that can limit its axial dimension.
As further improvement of the utility model spring, it is characterized in that, described adjustable lever 10 comprises two and can one end of the body of rod 12 be divided to be separately positioned in described annular groove 8 dividing described in the body of rod 12, two of relative sliding vertically.
As further improvement of the utility model spring, it is characterized in that, described fixing device is be fixed on the described point of adjacent body of rod 12 and the clamp device that the described point of body of rod 12 can be clamped.
As further improvement of the utility model spring, it is characterized in that, the described point of body of rod 12 is provided with through bar-shaped trough 14, is communicated with at least partly between adjacent described bar-shaped trough 14.
As further improvement of the utility model spring, it is characterized in that, described clamp device comprises the bolt 16 that can slide in described bar-shaped trough 14 and the nut 18 with described bolt 16 screw-thread fit, described bolt 16 one end is provided with the head 20 that radial direction is widened, and the radial overall dimensions of the those widened sections of described nut 18 and head 20 is greater than the width of described bar-shaped trough 14.
Working principle of the present utility model is as follows:
The utility model can according to demand, regulate the elastic force of spring:
(1) when needing the elastic force reducing spring, regulator plate 6 can be rotated along the contoured surface of spring, make the spacing between two pieces of regulator plates 6 enough large, then the nut 18 tighted a bolt on 16, clamps two pieces points of bodies of rod 12, makes to produce larger frictional force between the score body of rod 12, prevent from mutually moving between point body of rod 12, play fixing effect, the spring contoured surface now contacted with regulator plate 6 is fixed and cannot provides spring force, thus plays the effect reducing spring force.
(2) when needing the elastic force improving spring, contoured surface along spring rotates regulator plate 6, reduce the spacing between regulator plate 6, then the nut 18 tighted a bolt on 16, clamp two pieces points of bodies of rod 12, the spring section of now regulator plate 6 restriction is shorter, and the elastic force of restriction is less, and elastic force is larger comparatively speaking.
(3) when elastic force without the need to restraining spring, can unclamp bolt 16 and nut 18, make to be in state freely between the score body of rod 12, now, spring can Free Compression.
Above embodiment is only the utility model a kind of mode of execution wherein, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.