CN2646463Y

CN2646463Y - Anti-theft check bolt

Info

Publication number: CN2646463Y
Application number: CN 02289844
Authority: CN
Inventors: 马俊峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-09
Filing date: 2002-12-09
Publication date: 2004-10-06
Anticipated expiration: 2012-12-09

Abstract

The utility model discloses a lockable bolt, which belongs to the field of mechanical connecting piece, and comprises a stud bolt arranged in the middle, a nut arranged at periphery and upper and lower gaskets. The utility model is characterized in that: the stud bolt is provided with a vertical groove through the whole screw; upper and lower surfaces of the nut are provided with jagged grooves along the circumference and in a periodic law; inside diameter of the gasket is provided with a tapered embossment occluded with the vertical groove on the stub bolt. Under the condition that additional components and process are not provided, the bolt can realize loose protection and theft proof, which has low cost, simple assembly and dismounting, thus being suitable for the places needing a permanent fixation of the bolt.

Description

Loosing and theft preventing bolt

Technical field

The utility model belongs to the mechanical fastener field, specially refers to a kind of loosing and theft preventing bolt.

Background technique

Bolt arrangement as the machinery link, be particularly useful for connections such as railroad track, electrical network steelframe equipment bolt, prevent that it is in use loosening or stolen, in order to avoid lead to ill effect, its significance is self-evident already, also become a familiar topic already, the product of loosing and theft preventing bolt also is the diversified selling market that enters.But make a general survey of existing various loosing and theft preventing bolts, nothing more than following various: 1. the japanning sealing is locking, and 2. double nut strengthens strength and locking, 3. it is locking that trimming increases frictional force, 4. outer bundle locking silk is locking, and it is locking 5. to insert cotter pin, 6. increases the special outer nut of a locking and locking ....The common feature that these locking, antitheft measures have is that they all need extra special design; Or increase some operations, or the more ad hoc complementary parts that add, just can make original employed that cover bolt realize locking purpose, the practice like this, the one, increase extra trouble, the 2nd, increase some costs than original employed parts always, from economic account, field of employment so widely just can reach and loosens considerable consumption always if all will increase extra energy and expense.In the case, I have carried out repeatedly experimental research, and being intended to is not additionally increasing under the condition of new component and manufacturing procedure with comparatively simple mode and structure, by the measure on the self structure, can reach the effect of anti-loose anti-theft.This measure has also been made useful contribution to the saving of equipment, cost.

Summary of the invention

The utility model technical issues that need to address, be to increase extra component at existing loosing and theft preventing bolt or because of complex structure, or because of increasing additional process, make the solution anti-loose anti-theft need pay this deficiency of certain cost, and redesign a kind of bolt, make it lean on measure on the self structure, do not need additionally to increase accessory, can reach anti-loosing effect.The purpose of this utility model relies on following technological scheme to realize, a kind of loosing and theft preventing bolt comprises the double-screw bolt of centering, peripheral nut and packing ring up and down, it is characterized in that, establishes longitudinally a groove on the double-screw bolt bar and runs through the whole of screw thread; The upper and lower surface of nut along the circumferential direction becomes the periodic law jagged groove that distributing; Be provided with on the internal diameter of packing ring one with double-screw bolt on the taper projection of longitudinal fluting interlock.Described double-screw bolt, its screw thread can be to connect to be provided with, and also a segment length can be set, and its longitudinal fluting is corresponding with reach.Described nut, the saw-tooth grooves that its upper and lower surface is along the circumferential direction distributed, each nut side can be established one to two slot number, constitute single zigzag fashion groove nut and two zigzag fashion groove nut respectively, thereby for a six-sided nut, can be 6 cycles along the zigzag fashion groove in one week, also can be 12 cycles, during use, can select this two kinds of different nuts voluntarily by the requirement of different occasions.Described packing ring can be the complete closure circle on the position, circumference opposite of the set taper high spot of its internal diameter, also can have breach and form spring shape packing ring on circumference, and the breach both sides have the incline section that sticks up up and down respectively, and these two-part are for gradually approaching the formula structure.This gradually thin structure is in rundown process, gradually thin sticks up incline section, is easy to snap in the zigzag fashion groove on the nut and locks.More than these structures not only locking, and prevented to want that the people who steals bolt can't set about, but, under normal use condition, the convenience when freeing nut, on packing ring, increase a kind of measure that designs for ease of decomposition, described packing ring on the position, circumference opposite at the set conoid protuberance of its internal diameter place, can be established an outside taper lug at this external diameter, also can have the slot breach therebetween, the tapered opening lug that has a downwarp out in the formation.The beneficial effects of the utility model are, this bolt is not increasing under excessive zero parts and the additional process, can realize the purpose of anti-loose anti-theft by the measure of self structure, and cost is low, loading and unloading are easy, is fit to the permanent fixed place use of multiple needs bolt.

Description of drawings

Fig. 1 totally assembles schematic representation for loosing and theft preventing bolt,

Fig. 2 a-2b is respectively and runs through screw thread and two kinds of double-screw bolt shapes of segmentation screw thread figure,

Fig. 3 a, 3b, 3c are respectively stereogram, front elevation and the plan view of two zigzag fashion groove nuts,

Fig. 4 a, 4b, 4c are respectively stereogram, front elevation and the plan view of single zigzag fashion groove nut,

Fig. 5 a, 5b are respectively the complete closure circular washer and have the springiness packing ring of breach,

Fig. 5 c has the C washer front view for this reason,

Fig. 6 a, 6b are respectively the packing ring with taper lug and have the taper lug packing ring of breach.

Embodiment

With reference to Fig. 1, the general illustration that each part of expression loosing and theft preventing bolt is assembled together, wherein double-screw bolt is 1, and its helical thread portion can be to run through double-screw bolt integral body, and shown in Fig. 2 a, also can be one section has screw thread, shown in Fig. 2 b; Nut 2, it can be fixed on the double-screw bolt by packing ring 3, only is with packing ring among Fig. 1 below nut, also can continue the stack nut then equally at nut upper surface cover upper gasket.Represent two zigzag fashion groove nuts with reference to Fig. 3 a, b, c, Fig. 4 a, b, c are single zigzag fashion groove nut, with reference to the projection on Fig. 5 a, b, its middle washer 3 internal diameters of c is 3.1, its opposite circumference upper shed slot is 3.2, the taper lug of representing among Fig. 6 a, the b is 3.3, and the taper lug that has the slot breach is 3.4.

Claims

1, a kind of loosing and theft preventing bolt comprises the double-screw bolt of centering, peripheral nut and packing ring up and down, it is characterized in that, establishes longitudinally a groove on the double-screw bolt bar and runs through the whole of screw thread; The upper and lower surface of nut along the circumferential direction becomes the periodic law jagged groove that distributing; Be provided with on the internal diameter of packing ring one with double-screw bolt on the taper projection of longitudinal fluting interlock.Described double-screw bolt, its screw thread can be to connect to be provided with, and also a segment length can be set, and its longitudinal fluting is corresponding with reach.Described nut, the saw-tooth grooves that its upper and lower surface is along the circumferential direction distributed, each nut side can be established one to two slot number,

According to the described bolt of claim 1, it is characterized in that 2, described double-screw bolt, its screw thread can be to connect to be provided with, and also a segment length can be set, its longitudinal fluting is corresponding with reach.

3, according to the described bolt of claim 1, it is characterized in that described nut, the saw-tooth grooves that its upper and lower surface is along the circumferential direction distributed, each nut side can be established one to two slot number, constitutes single zigzag fashion groove nut and two zigzag fashion groove nut respectively.

4, according to the described bolt of claim 1, it is characterized in that, described packing ring, can the complete closure circle on the position, circumference opposite of the set taper high spot of its internal diameter, also can on circumference, have breach and form spring shape packing ring, the breach both sides have the incline section that sticks up up and down respectively, and these two-part are for gradually approaching the formula structure.

5, according to the described bolt of claim 1, it is characterized in that described packing ring, on the position, circumference opposite at the set conoid protuberance of its internal diameter place, can establish an outside taper lug at this external diameter, also can have notched slot therebetween, the tapered opening lug that has a downwarp out in the formation.