CN218953763U - Locking bolt - Google Patents

Abstract

The application discloses locking bolt relates to the bolt technical field, including the bolt head, the lower surface fixedly connected with double-screw bolt of bolt head, the locking hole has been seted up to the upper surface of bolt head, locking hole internally mounted has interior bolt, locking hole is including regulation hole, screw head hole and screw hole, the upper end opening part of the interior appearance chamber of screw head hole with the lower extreme opening part of the interior appearance chamber of regulation hole is linked together, the upper end opening part of the interior appearance chamber of screw hole with the lower extreme opening part of the interior appearance chamber of screw head hole is linked together, interior bolt is including interior bolt head, interior double-screw bolt and interior cross groove, interior bolt head fixed connection is in the upper surface of interior double-screw bolt, interior cross groove is seted up the upper surface of interior bolt head, interior bolt head movable mounting is in the inside of screw head hole, the surface of interior double-screw bolt with the interior surface threaded connection of screw hole; the fastening effect of the bolt after locking can be improved through the cooperation of the structure.

Description

Locking bolt

Technical Field

The utility model belongs to the technical field of bolts, and particularly relates to a locking bolt.

Background

The threaded connection has high standardization degree, is easy to assemble, disassemble and manufacture, can adapt to various working conditions, and is widely applied to the field of a plurality of mechanical equipment.

However, most of the existing bolts are locked and fixed through one stud, because various factors such as friction, vibration and temperature are affected, looseness is often generated, the looseness of the bolts and nuts can affect the operation of mechanical equipment, even danger occurs, and the fastening effect of the bolts after locking is poor.

Disclosure of Invention

The utility model aims at: in order to improve the fastening effect after the bolt is locked, the application provides a locking bolt.

The technical scheme adopted by the utility model is as follows:

the utility model provides a locking bolt, includes the bolt head, the lower fixed surface of bolt head is connected with the double-screw bolt, the locking hole has been seted up to the upper surface of bolt head, locking hole internally mounted has interior bolt, the locking hole is including regulation hole, screw head hole and screw hole, the upper end opening part of the inside appearance chamber of screw head hole with the lower extreme opening part of the inside appearance chamber of regulation hole is linked together, the upper end opening part of the inside appearance chamber of screw hole with the lower extreme opening part of the inside appearance chamber of screw head hole is linked together, interior bolt is including interior bolt head, interior double-screw bolt and interior cross groove, interior bolt head movable mounting is in the inside of screw head hole, the surface of interior double-screw bolt with the internal surface threaded connection of screw hole.

Through adopting above-mentioned technical scheme, after aiming at hole groove and wall knob fastening with the double-screw bolt, can utilize the thin wedge head of screwdriver to aim at the interior cross groove on the interior bolt and carry out the knob, interior bolt head can drive the interior double-screw bolt and stretch out from the bottom of screw hole when pivoted this moment, and the part of stretching out can rotate and insert the wall, further improves the intensity after the fixed of bolt to improve the fastening effect after the bolt locking.

Optionally, the number of locking holes is four, and four locking holes are annular equidistant and are arranged on the upper surface of the bolt head.

Through adopting above-mentioned technical scheme, the quantity of interior bolt is the same with the quantity of locking hole, and the intensity after the fixed of bolt can be further improved to the cooperation of a plurality of locking holes and interior bolt to improve the fastening effect after the bolt locking.

Optionally, the outer diameter of the inner bolt head is matched with the inner diameter of the screw head hole.

By adopting the technical scheme, the thin wedge-shaped head of the small-specification screwdriver is aligned with the inner cross groove on the inner bolt and then twisted, so that the inner bolt head rotates in the screw head hole.

Optionally, the height of the screw head hole is greater than the height of the inner screw head.

By adopting the technical scheme, the height difference can enable the inner bolt head to move upwards or downwards in the screw head hole.

Optionally, an outer cross groove is formed in the middle of the upper surface of the bolt head.

By adopting the technical scheme, after the stud on the bolt is aligned with the hole groove or the wall surface, the thin wedge-shaped head of the screwdriver with corresponding specification can be aligned with the outer cross groove for rotary twisting so as to rotationally insert the stud into the hole groove or the wall surface.

Optionally, the inner bolt head is fixedly connected to the upper surface of the inner stud.

Optionally, the inner cross groove is formed on the upper surface of the inner bolt head.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

according to the screw bolt locking device, after the screw bolt is aligned to the hole groove and the wall surface screw bolt is fastened, the screw bolt can be screwed after the thin wedge-shaped head of the screw driver is aligned to the inner cross groove on the inner screw bolt, at the moment, the inner screw bolt head drives the inner screw bolt to extend out of the bottom of the threaded hole while rotating, the extending part can be rotatably inserted into the wall surface, the strength of the screw bolt after being fixed is further improved, and therefore the fastening effect of the screw bolt after being locked is improved.

Drawings

FIG. 1 is a front cross-sectional view of the present utility model;

FIG. 2 is a top view of the present utility model;

fig. 3 is an enlarged view of a of fig. 1 in the present utility model.

The marks in the figure: 1-bolt head, 11-stud, 12-outer cross groove, 20-inner bolt, 201-inner bolt head, 202-inner stud, 203-inner cross groove, 23-locking hole, 230-adjusting hole, 231-screw head hole, 232-threaded hole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples:

referring to fig. 1-3, a locking bolt comprises a bolt head 1, wherein a stud 11 is fixedly connected to the lower surface of the bolt head 1, an outer cross groove 12 is formed in the middle of the upper surface of the bolt head 1, and after the stud 11 on the bolt is aligned to a hole groove or a wall surface, the thin wedge-shaped head of a screwdriver with corresponding specification can be used for rotating and twisting the outer cross groove 12 so as to rotationally insert the stud 11 into the hole groove or the wall surface; the upper surface of bolt head 1 has seted up locking hole 23, and locking hole 23 quantity is four, and four locking holes 23 are cyclic annular equidistance setting at the upper surface of bolt head 1, and locking hole 23 internally mounted has interior bolt 20, and interior bolt 20's quantity is the same with locking hole 23 quantity, and the intensity after the fixed of bolt can further be improved to the cooperation of a plurality of locking holes 23 and interior bolt 20 to improve the fastening effect after the bolt locking.

Referring to fig. 1 to 3, the locking hole 23 includes an adjusting hole 230, a screw hole 231 and a threaded hole 232, wherein an upper end opening of an inner cavity of the screw hole 231 is communicated with a lower end opening of an inner cavity of the adjusting hole 230, and a thin wedge-shaped head of a small-sized screwdriver can pass through the adjusting hole 230 to turn the inner bolt 20; the upper end opening part of the inner accommodating cavity of the threaded hole 232 is communicated with the lower end opening part of the inner accommodating cavity of the screw head hole 231, the inner bolt 20 comprises an inner bolt head 201, an inner stud 202 and an inner cross groove 203, the inner bolt head 201 is fixedly connected with the upper surface of the inner stud 202, the inner stud 202 on the inner bolt 20 twisted by a small-specification screwdriver stretches out from the bottom of the threaded hole 232 while rotating, the stretching-out part can be rotatably inserted into a wall surface, the strength of the bolt after being fixed is further improved, and the fastening effect of the bolt after being locked is further improved.

Referring to fig. 1 to 3, an inner cross groove 203 is formed on the upper surface of an inner bolt head 201, the inner bolt head 201 is movably mounted inside a screw head hole 231, the outer diameter size of the inner bolt head 201 is matched with the inner diameter size of the screw head hole 231, and a thin wedge-shaped head of a small-sized screwdriver is aligned with the inner cross groove 203 on the inner bolt 20 and then twisted so that the inner bolt head 201 rotates inside the screw head hole 231; the height of the screw head hole 231 is greater than that of the inner screw head 201, and the height difference can enable the inner screw head 201 to move up or down in the screw head hole 231; the outer surface of the inner stud 202 is in threaded connection with the inner surface of the threaded hole 232, the inner bolt head 201 twisted by the small screwdriver can drive the inner stud 202 to extend out of the bottom of the threaded hole 232 while rotating, the extending-out part can be rotatably inserted into a wall surface, the strength of the bolt after being fixed is further improved, and therefore the fastening effect of the bolt after being locked is improved.

The implementation principle of the embodiment of the locking bolt is as follows:

after the stud 11 on the bolt is aligned with the hole groove or the wall surface, the thin wedge-shaped head of the screwdriver with corresponding specification is aligned with the outer cross groove 12 to perform rotary twisting so as to insert the stud 11 into the hole groove or the wall surface in a rotary manner, then the thin wedge-shaped head of the screwdriver with small specification is aligned with the inner cross groove 203 on the inner bolt 20 to perform rotary twisting, at the moment, the inner bolt head 201 drives the inner stud 202 to stretch out from the bottom of the threaded hole 232 while rotating, the stretch-out part can be rotationally inserted into the wall surface, the strength of the bolt after fixing is further improved, and the fastening effect of the bolt after locking is improved.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (7)

1. A locking bolt comprising a bolt head (1), characterized in that: the lower surface fixedly connected with double-screw bolt (11) of bolt head (1), locking hole (23) have been seted up to the upper surface of bolt head (1), locking hole (23) internally mounted has interior bolt (20), locking hole (23) are including regulation hole (230), spiral shell head hole (231) and screw hole (232), the upper end opening part of the inside appearance chamber of spiral shell head hole (231) with the lower extreme opening part of the inside appearance chamber of regulation hole (230) is linked together, the upper end opening part of the inside appearance chamber of screw hole (232) with the lower extreme opening part of the inside appearance chamber of spiral shell head hole (231) is linked together, interior bolt (20) are including interior bolt head (201), interior double-screw bolt (202) and interior cross groove (203), interior bolt head (201) movable mounting is in the inside of spiral shell head hole (231), the surface of interior double-screw bolt (202) with the internal surface threaded connection of screw hole (232).

2. A locking bolt as defined in claim 1, wherein: the number of the locking holes (23) is four, and the four locking holes (23) are annularly equidistantly arranged on the upper surface of the bolt head (1).

3. A locking bolt as defined in claim 1, wherein: the outer diameter of the inner bolt head (201) is matched with the inner diameter of the screw head hole (231).

4. A locking bolt as defined in claim 1, wherein: the height of the screw head hole (231) is larger than the height of the inner screw head (201).

5. A locking bolt as defined in claim 1, wherein: an outer cross groove (12) is formed in the middle of the upper surface of the bolt head (1).

6. A locking bolt as defined in claim 1, wherein: the inner bolt head (201) is fixedly connected to the upper surface of the inner stud (202).

7. A locking bolt as defined in claim 1, wherein: the inner cross groove (203) is formed in the upper surface of the inner bolt head (201).

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