CN202732627U - Locking washer - Google Patents

Abstract

The utility model relates to a locking washer and belongs to a fastener. The locking washer is generally placed between a nut and a connected part and comprises an annular sheet, wherein a plurality of elastic sheets are circumferentially and uniformly bent on the edge of an inner hole of the annular sheet; the elastic sheets and the annular sheet are integrated; and an included angle alpha between the elastic sheet and the annular sheet ranges from 40 to 50 degrees. The locking washer can prevent the nut from loosening when the nut is under strong vibration.

Description

Lock washer

Technical field:

The utility model relates to a kind of fastening piece, specifically is a kind of lock washer.

Background technique:

Packing ring uses comparatively frequent in mechanical connection, and it usually is placed on nut and is connected between the part, is used for preventing that nut from use becoming flexible.Up and down two end faces of conventional packing ring mostly are smooth plane, this smooth plane and nut and the frictional force that is connected between part are very little, and when nut was subject to than strong vibration, nut just was easy to occur loosening, therefore, the anti-loosing effect of above-mentioned packing ring still need improve.

The model utility content:

The technical problems to be solved in the utility model is, provides a kind of when nut is subject to than strong vibration, can prevent better that nut from loosening lock washer occuring.

Technical solution of the present utility model is that a kind of lock washer with following structure is provided: comprise ring segment, the endoporus edge of ring segment circumferentially evenly is bent with a plurality of spring sheets, and spring sheet and ring segment are an integral body.

Lock washer described in the utility model, wherein, the angle α between spring sheet and the ring segment is 40 °～50 °.

Lock washer described in the utility model, wherein, angle α is 45 °.

Lock washer described in the utility model, wherein, the quantity of spring sheet is 3 or 4 or 5 or 6 or 7 or 8.

Lock washer described in the utility model, wherein, the quantity of spring sheet is 6.

After adopting above structure, compared with prior art, the utility model lock washer has the following advantages: after nut is pressed on the utility model lock washer, spring sheet will be out of shape stressed, simultaneously, nut is subject to the reverse elastic force from spring sheet, the thread pressure of nut and bolt joint is increased, and frictional force strengthens thereupon, thereby so that nut when being subject to than strong vibration, loosening comparatively difficulty has played better anti-loosing effect.

It is the preferred implementation of the utility model lock washer that angle α between spring sheet and the ring segment is 40 °～50 °.

It is the preferred forms of the utility model lock washer that angle α is 45 °.

It is the preferred implementation of the utility model lock washer that the quantity of spring sheet is 3 or 4 or 5 or 6 or 7 or 8.

It is the preferred forms of the utility model lock washer that the quantity of spring sheet is 6.

Description of drawings:

Fig. 1 is the stereochemical structure profile schematic diagram of the utility model lock washer;

Fig. 2 is the sectional structure schematic diagram on edge " A-A " among Fig. 1.

Embodiment:

Below in conjunction with the drawings and specific embodiments the utility model lock washer is described in further detail:

As depicted in figs. 1 and 2, in this embodiment, the utility model lock washer comprises ring segment 3, and endoporus 1 edge of ring segment 3 circumferentially evenly is bent with 6 spring sheets 2, spring sheet 2 is an integral body with ring segment 3, and the angle α between spring sheet 2 and the ring segment 3 is 45 °.

The working principle of the utility model lock washer is: after nut is pressed on the utility model lock washer, spring sheet 2 will be out of shape stressed, simultaneously, the arrived reverse elastic force of this own elasticity sheet 2 of nut, the thread pressure of nut and bolt joint is increased, frictional force strengthens thereupon, thereby so that nut when being subject to than strong vibration, becomes flexible comparatively difficulty.

Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.

Claims (5)

1. lock washer, it is characterized in that: comprise ring segment (3), endoporus (1) edge of described ring segment (3) circumferentially evenly is bent with a plurality of spring sheets (2), and described spring sheet (2) is an integral body with ring segment (3).

2. lock washer according to claim 1, it is characterized in that: the angle α between described spring sheet (2) and the ring segment (3) is 40 °～50 °.

3. lock washer according to claim 2, it is characterized in that: described angle α is 45 °.

4. the described lock washer of arbitrary claim in 3 according to claim 1, it is characterized in that: the quantity of described spring sheet (2) is 3 or 4 or 5 or 6 or 7 or 8.

5. lock washer according to claim 4, it is characterized in that: the quantity of described spring sheet (2) is 6.

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