TWM480604U - Improvement of lock washer structure - Google Patents

Description

Improvement of the structure of the lock washer

The present invention relates to a lock washer structure, and in particular to an improvement in the structure of the lock washer which is easy to remove and which can be reduced in production cost.

In the industrial field, many equipments need to use a nut with a washer to fix the machine, but the general nut and washer contact surface is flat, and the machine is often in the vibration situation when operating, the nut and Gaskets are relatively loose and have the potential to loosen, which naturally affects the safety of the equipment.

Therefore, it is the best choice for the equipment that needs to be tested by severe vibrations. A conventional anti-loose nut group structure is disclosed in FIG. 4, and the anti-loose nut group is mainly composed of a anti-loose nut (41) and a lock washer (42); the anti-loose nut (41) The outer shape is mainly a hexagonal column type, and the bottom surface is formed with a first wedge surface (411); the lock washer (42) has a circular outer shape and is opposite to the anti-loose nut (41). The outer shape may have a second wedge surface (421) corresponding to the first wedge surface (411), and the other surface is provided with six sharp molding strips (4222) for reinforcing the nut group and the workpiece surface to be locked. The frictional force; thereby, when the nut and the washer are relatively rotated, the two opposing wedge faces interfere with each other, and the locking effect of the tip strip (422) is added, so that the nut is not easily unscrewed to prevent The loosening and anti-theft effect; the anti-loose washer can be further provided with a notch (423), and if necessary, only the special hand tool can be used against the anti-loose nut (41) and the recess (423) can be used. The entire anti-loose nut group is relaxed.

Although the above-mentioned conventional anti-loose nut group can achieve a good anti-loose and anti-theft effect, the above-mentioned anti-loose washer structure with a notch needs to be loosened. In order to cooperate with special tools, it is prone to the problem that the general hand tools cannot be dismantled and repaired in different places, and the production process finds that the notched anti-loose washers generate relatively more waste, and the production cost is naturally higher. It can be seen that the conventional anti-loose There should be room for improvement in the gasket construction.

In view of this, the present invention is to provide an improvement in the structure of the lock washer, which can reduce the production cost and can be loosened by a general hand tool.

In order to achieve the above object, the technical means proposed by the present invention is to provide an improvement of the structure of the anti-loosening washer, which comprises a ring body, the bottom surface is provided with a plurality of radially arranged sharp-shaped strips; a hexagonal body is arranged in the circle In the center of the ring body, the top surface is provided with a continuous wedge surface; and a central hole penetrating through the center.

The improvement of the structure of the above-mentioned lock washer, wherein the continuous wedge surface is formed by a plurality of wedge teeth having a stop surface and a slope.

The improvement of the structure of the above-mentioned anti-loosening washer, wherein the pointed strip is composed of a sloped surface and a vertical wall, and the inclined surface is disposed along the tightening direction.

The improvement of the structure of the above-mentioned anti-loosening washer, wherein the central hole has a step shape, and the lower part of the central hole is radially expanded by the hole wall to be larger than the ring groove of the hole wall.

The improvement of the structure of the above-mentioned anti-loose washer, wherein the central hole is in the shape of a taper hole, which is composed of a confined section and a ring-shaped cone section, the confined section is separated by an appropriate distance from the bottommost surface of the continuous wedge-shaped surface, and then inclined by an oblique The corners slant outward to form a ring cone segment.

The ring body is reinforced with a loosening nut or a loosening bolt; the outer shape of the hexagonal body provides a position where the general tool can be removed by force; the production cost is saved by the conventional one.

11‧‧‧ center hole

12‧‧‧hex body

120‧‧‧Continuous wedge face

121‧‧‧ wedge teeth

122‧‧ ‧ facing

123‧‧‧Bevel

13‧‧‧The Ministry of the Circle

130‧‧‧ pointed strip

131‧‧‧Bevel

132‧‧‧ vertical wall

21‧‧‧hex body

22‧‧‧The Ministry of the Circle

23‧‧‧ center hole

231‧‧‧ hole wall

232‧‧‧ Ring groove

31‧‧‧hex body

310‧‧‧Continuous wedge face

311‧‧‧ wedge teeth

32‧‧‧The Ministry of the Circle

33‧‧‧ center hole

331‧‧‧limited section

332‧‧‧ring cone

41‧‧‧Safety nuts

411‧‧‧First wedge face

42‧‧‧Anti-loose washer

421‧‧‧Second wedge face

422‧‧‧ pointed strip

423‧‧‧ Notch

Fig. 1 is a schematic view showing the structure of a first embodiment of the present creation.

Fig. 2 is a schematic view showing the structure of the second embodiment of the present creation.

Fig. 3 is a schematic view showing the structure of the third embodiment of the present creation.

Fig. 4 is a schematic view showing the structure of a conventional anti-loose nut group.

To further clarify the structural features, functions, and other advantages of the present invention, the preferred embodiments and the drawings are described in detail below.

Please refer to Fig. 1 to reveal the structure of the anti-loose washer. The anti-loose washer structure is mainly provided with a central hole (11) in the center, which can be matched with the anti-loose nut and the anti-loose bolt. The main feature is that the lock washer of the present invention has a ring body (13) and a hexagonal body (12) formed on the upper side.

The top surface of the hexagonal body (12) is provided with a continuous wedge surface (120) formed by a plurality of wedge teeth (121), and the wedge teeth (121) are formed by a blocking surface (122). And a beveled surface (123); the bottom surface of the circular body (13) is provided with a plurality of radially arranged sharp-shaped strips (130), and the configuration of the sharp-shaped strips (130) is formed by a slope (131) and A vertical wall (132) is formed, and the inclined surface (131) is disposed along the tightening direction.

When the anti-loose washer of the present invention is used with the anti-loose nut or the anti-loose bolt, the relative continuous wedge surface (120) and the sharp strip (130) structure naturally constitute the anti-loose and anti-slip effect of the anti-loose nut group. The larger annular body (13) increases the friction and further enhances the anti-loose effect. The shape of the hexagonal body (12) can provide a position for the hand tools such as the opening and the sleeve to be attached at the same time when necessary to remove the nut group, so that the anti-loose nut can be smoothly completed. Group of programs. The anti-loose gasket configuration of this creation, after actual production, is indeed more material-saving than the conventional ones, and the production cost is relatively natural.

Referring to Fig. 2, a second embodiment of the present invention has a hexagonal body (21), an outwardly extending annular body (22), and a center hole (23) disposed at the center. The difference from the first figure is that the lower part of the central hole (23) is radially expanded by the hole wall (231) to a larger diameter than the ring groove (232) of the hole wall (231), so that the central hole (23) is stepped. The lock washer structure of the present embodiment is maintained in the same manner as the previous embodiment. Efficacy also provides the possibility to link the nut and washer activities together. The other structure is the same as that of the first embodiment, and therefore will not be described again.

Referring to Fig. 3, a third embodiment of the present invention has a hexagonal body (31), an outwardly extending annular body (32), and a center hole (33) disposed at the center. The difference from the first and second figures is that the central hole (33) has a tapered shape and is composed of a confined section (331) and a ring-shaped cone section (332). The confined section (331) is continuous. The bottommost portion of the wedge surface (310), that is, the lowest portion of the wedge tooth (311) is spaced apart from the bottom surface of the lock washer by a suitable thickness, and then obliquely outwardly inclined at an oblique angle to form a ring taper segment (332); In addition to the effects of the above embodiments, the anti-loose washer structure of the embodiment also provides the possibility of integrally joining the nut to the washer. The other structure is the same as that of the first embodiment, and therefore will not be described again.

It can be seen from the above description that the improvement of the structure of the anti-loose gasket of the present invention has actually reached the preset purpose, fully meets the needs of the industry, and is filed according to law, but the above is only a better implementation of the present invention. For example, it is not intended to limit the creation of this work, and the scope of protection of this creation is subject to the definition of the scope of the patent application.

11‧‧‧ center hole

12‧‧‧hex body

120‧‧‧Continuous wedge face

121‧‧‧ wedge teeth

122‧‧ ‧ facing

123‧‧‧Bevel

13‧‧‧The Ministry of the Circle

130‧‧‧ pointed strip

131‧‧‧Bevel

132‧‧‧ vertical wall

Claims (5)

The invention relates to an improvement of a structure of a lock washer, comprising: a ring body having a plurality of radially arranged tip inserts on the bottom surface; a hexagonal body disposed in the center of the ring body, the top surface being provided with a continuous wedge surface; Pass through a central hole in the center. The improvement of the structure of the lock washer according to claim 1, wherein the continuous wedge surface is formed by a plurality of wedge teeth having a stop surface and a slope. The improvement of the structure of the lock washer according to claim 1, wherein the tip strip is formed by a slope and a vertical wall, and the slope is disposed along the screwing direction. The improvement of the structure of the anti-loose washer according to claim 1, wherein the central hole has a step shape, and the lower portion of the central hole is radially expanded by a hole wall to be larger than a ring groove of the hole wall. The improvement of the structure of the anti-loose washer according to the first aspect of the patent application, wherein the central hole has a tapered hole shape and is composed of a confined section and a ring conical section, wherein the confined section is separated by a bottommost distance of the continuous wedge surface. After a suitable distance, an outwardly inclined angle is formed at an oblique angle to form a ring taper segment.