A kind of high-strength bolt easy to use
The utility model relates to the technical fields of the technical field of fastener, especially high-strength bolt.
Fastener is widely used in various fields, different components can be fixed, high-strength bolt is one
The common fastener of kind.Existing high-strength bolt can generally apply prestressing force during using, past in use
Toward dedicated tool is needed, it can not be played well using general tool and apply suitable prestressing force.
[utility model content]
The purpose of this utility model is exactly to solve the problems of the prior art, proposes a kind of high-intensitive spiral shell easy to use
Bolt can make high-strength bolt use become convenient.
To achieve the above object, the utility model proposes a kind of high-strength bolt easy to use, including kingbolt head,
Driving screw, auxiliary bolt head, auxiliary threaded rod, fixing groove, spring, auxiliary bolt head bottom centre are fixed with an auxiliary spiral shell
Bar, kingbolt overhead center are equipped with a threaded hole, and auxiliary threaded rod is screwed on threaded hole, and kingbolt head bottom centre is solid
Surely there is a driving screw, driving screw bottom is equipped with a fixing groove, and the spring is located at the lower end of driving screw, and spring upper end is stuck in
In fixing groove, the bottom end of the kingbolt head is equipped with several gaskets, and driving screw passes through gasket, sets on the side wall of the kingbolt head
There is a flange, flange lower is fixed with an elastic sealing ring.
Preferably, the upper end center of the kingbolt head is equipped with a reinforcement boss, reinforcement boss is cylindrical, screw thread
Hole, which passes through, reinforces boss.
Preferably, the depth of the threaded hole is slightly less than the length of auxiliary threaded rod, auxiliary bolt head lower end surface and main spiral shell
There is gap always between upper surface in bolt head.
Preferably, the kingbolt head is rounded, auxiliary bolt head is in hexagon, and the inscribed circle diameter of auxiliary bolt is big
In the diameter of kingbolt head.
Preferably, the slot bottom of the fixing groove is equipped with a fixed ring, spring passes through fixed ring and is fixed on fixing groove
Preferably, the flange section is in inverted L shape, a clamping is formed between flange and kingbolt head side wall
Slot, elastic sealing ring top are connected in clamping slot.
Preferably, the elastic sealing ring elastic sealing ring lower end surface and kingbolt head lower end surface under not subjected to pressure state
The distance between be slightly larger than all gaskets the sum of thickness.
Preferably, the kingbolt head and driving screw are an integral structure, auxiliary bolt head and auxiliary threaded rod are integrated
Formula structure, the intensity of auxiliary threaded rod are less than the intensity of driving screw.
The utility model has the beneficial effects that the utility model is by the way that auxiliary threaded rod to be screwed on kingbolt head, it is suitable to select
The auxiliary threaded rod of intensity, which twists into two parts rear high-strength bolt, can be obtained suitable prestressing force, and driving screw will not be excessive and disconnected because exerting a force
It splits, can be carried out using general tool using easy to use；The setting of elastic sealing ring is so that high-strength bolt has centainly
The feature and advantage of the utility model will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is a kind of main view of high-strength bolt easy to use of the utility model.
In figure: 1- kingbolt head, 2- driving screw, 3- auxiliary bolt head, 4- auxiliary threaded rod, 5- spring, 10- threaded hole, 11-
Reinforce boss, 15- gasket, 16- flange, 17- clamping slot, 18- elastic sealing ring, 20- fixing groove, 21- fixed ring.
Refering to fig. 1, a kind of high-strength bolt easy to use of the utility model, including kingbolt head 1, driving screw 2, auxiliary
Bolt head 3, auxiliary threaded rod 4, fixing groove 20, spring 5,3 bottom centre of auxiliary bolt head are fixed with an auxiliary threaded rod 4,
1 top center of kingbolt head is equipped with a threaded hole 10, and auxiliary threaded rod 4 is screwed on threaded hole 10, in 1 bottom of kingbolt head
The heart is fixed with a driving screw 2, and 2 bottom of driving screw is equipped with a fixing groove 20, and the spring 5 is located at the lower end of driving screw 2, bullet
5 upper end of spring is stuck in fixing groove 20, and the bottom end of the kingbolt head 1 is equipped with several gaskets 15, and driving screw 2 passes through gasket 15, institute
The side wall for stating kingbolt head 1 is equipped with a flange 16, and 16 lower part of flange is fixed with an elastic sealing ring 18, the kingbolt
First 1 upper end center is equipped with a reinforcement boss 11, and reinforcement boss 11 is cylindrical, and threaded hole 10, which passes through, reinforces boss 11, institute
The depth for stating threaded hole 10 is slightly less than the length of auxiliary threaded rod 4, between 1 upper surface of 3 lower end surface of auxiliary bolt head and kingbolt head
Always there is gap, the kingbolt head 1 is rounded, and auxiliary bolt head 3 is in hexagon, and the inscribed circle diameter of auxiliary bolt is greater than
The diameter of kingbolt head 1, the slot bottom of the fixing groove 20 are equipped with a fixed ring 21, and spring 5 passes through fixed ring 21 and is fixed on
Determine the slot bottom of slot 20,16 section of flange is in inverted L shape, forms a clamping between 1 side wall of flange 16 and kingbolt head
Slot 17,18 top of elastic sealing ring are connected in clamping slot 17, the elastic sealing ring 18 elastic packing under not subjected to pressure state
The distance between 18 lower end surface of ring and 1 lower end surface of kingbolt head are slightly larger than the sum of the thickness of all gaskets 15, the kingbolt head 1
It is an integral structure with driving screw 2, auxiliary bolt head 3 and auxiliary threaded rod 4 are an integral structure, and the intensity of auxiliary threaded rod 4 is less than
The intensity of driving screw 2.
Utility model works process:
During the work time, auxiliary threaded rod 4 is screwed in kingbolt head 1 to a kind of high-strength bolt easy to use of the utility model
On, selecting the auxiliary threaded rod 4 of proper strength to twist into two parts rear high-strength bolt can be obtained suitable prestressing force, and driving screw 2 will not be because
It exerts a force excessive and is broken, can be carried out using general tool using easy to use；The setting of elastic sealing ring 18 is so that high-strength
Spending bolt has certain waterproof performance.
Above-described embodiment is the explanation to the utility model, is not the restriction to the utility model, and any pair of sheet is practical new
Scheme after type simple transformation belongs to the protection scope of the utility model.