CN209977422U

CN209977422U - Bolt with four holes in stepped screw rod and nut

Info

Publication number: CN209977422U
Application number: CN201920281404.0U
Authority: CN
Inventors: 李雪; 肖永生
Original assignee: Jiaxing Shengyuan Fastener Manufacturing Co Ltd
Current assignee: Jiaxing Shengyuan Fastener Manufacturing Co Ltd
Priority date: 2019-03-06
Filing date: 2019-03-06
Publication date: 2020-01-21
Anticipated expiration: 2029-03-06

Abstract

The utility model discloses a echelonment screw rod and nut have bolt in four holes, the electric iron comprises a screw rod, the one end fixedly connected with connecting block of screw rod, the one end fixedly connected with nut of screw rod is kept away from to the connecting block, one side outer wall intermediate position that the connecting block was kept away from to the nut has seted up first spiral groove, first through-hole has been seted up to the edge position internal surface all around of nut, seal gasket has been cup jointed in the surface activity of connecting block, one side outer wall that seal gasket is close to the screw rod is equipped with the rubber gasket, seal gasket's edge position internal surface all around has seted up the second through-hole, the surface of screw. The utility model provides a bolt fastening effect is better to the leakproofness obtains improving, lets by fixed device more stable, makes things convenient for people's operation when fastening or dismantling simultaneously, avoids receiving fastening tool's restriction, promotes its applied scope.

Description

Bolt with four holes in stepped screw rod and nut

Technical Field

The utility model relates to a bolt technical field especially relates to a echelonment screw rod and nut have bolt in four holes.

Background

Bolts are mechanical parts, cylindrical threaded fasteners fitted with nuts. A fastener consisting of a head part and a screw (a cylinder with external threads) needs to be matched with a nut to be used for fastening and connecting two parts with through holes, and the connection form is called bolt connection. If the nut is screwed off from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection, however, the existing bolt still has certain defects in use, for example, the structure is too single, the fixing effect is poor, the sealing performance is not high, the limitation of a fastening tool required in fastening is large, and certain adverse effect is caused in the actual use process, so that a bolt with a stepped screw rod and four holes in the nut is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a bolt with four holes on a ladder-shaped screw rod and a nut.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a echelonment screw rod and nut have bolt in four holes, includes the screw rod, the one end fixedly connected with connecting block of screw rod, the one end fixedly connected with nut of screw rod is kept away from to the connecting block, the one side outer wall intermediate position that the connecting block was kept away from to the nut has seted up first spiral groove, first through-hole has been seted up to the edge position internal surface all around of nut, seal gasket has been cup jointed in the surface activity of connecting block, one side outer wall that seal gasket is close to the screw rod is equipped with the rubber gasket, seal gasket's edge position internal surface all around has seted up the second through-hole, the.

Preferably, a third through hole is formed in the middle of the inner surface of the sealing gasket, the third through hole is circular, and the thickness of the sealing gasket is equal to the length of the connecting block.

Preferably, a second spiral groove is formed in the inner wall of one side, close to the screw, of the first spiral groove.

Preferably, the first spiral groove is in a regular hexagon shape, and the second spiral groove is in a cross shape.

Preferably, the shape of screw rod, connecting block and nut all is cylindrically, the diameter of screw rod is less than the diameter of connecting block, the diameter of nut is greater than the diameter of connecting block, the tangent plane of screw rod, connecting block and nut is the echelonment.

Preferably, the number of the first through holes and the number of the second through holes are four, and the first through holes and the second through holes are circular in shape.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, the first through hole, the second through hole, the connecting block, the sealing gasket and the rubber gasket are arranged, so that the fixing effect after bolt fixing can be improved, meanwhile, the sealing performance can be improved, and the fixed device is more stable;

2. in the utility model, the first rotary groove is arranged, and the second rotary groove is added in the first rotary groove of the regular hexagon, so that the operation of people during fastening or dismounting can be facilitated, the limitation of fastening tools is avoided, and the application range of the tool is widened;

to sum up, the utility model provides a bolt fastening effect is better to the leakproofness obtains improving, lets by fixed device more stable, makes things convenient for people's operation when fastening or dismantling simultaneously, avoids receiving fastening tool's restriction, promotes its applied scope.

Drawings

Fig. 1 is a schematic structural view of a bolt with four holes in a nut and a stepped screw according to the present invention;

fig. 2 is a schematic structural diagram of a nut of a bolt with four holes and a stepped screw according to the present invention;

fig. 3 is a schematic structural diagram of a sealing gasket of a bolt with four holes in the stepped screw and the nut of the present invention.

In the figure: 1 screw rod, 2 connecting blocks, 3 screw caps, 4 first rotary grooves, 5 first through holes, 6 sealing gaskets, 7 rubber gaskets, 8 second through holes, 9 third through holes, 10 second rotary grooves and 11 threads.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a echelonment screw rod and nut have bolt in four holes, including screw rod 1, screw rod 1's one end fixedly connected with connecting block 2, screw rod 1's one end fixedly connected with nut 3 is kept away from to connecting block 2, nut 3 keeps away from one side outer wall intermediate position of connecting block 2 and has seted up first spiral groove 4, first through-hole 5 has been seted up to the edge position internal surface all around of nut 3, seal gasket 6 has been cup jointed in the surface activity of connecting block 2, seal gasket 6 is close to one side outer wall of screw rod 1 and is equipped with rubber gasket 7, second through-hole 8 has been seted up to seal gasket 6's edge position internal surface all around, screw rod.

Seal gasket 6's internal surface intermediate position has seted up third through-hole 9, and the shape of third through-hole 9 is circularly, seal gasket 6's thickness size and connecting block 2's length size are the same, first spiral groove 4 has been close to one side inner wall of screw rod 1 and has been seted up the second and has revolved groove 10, first spiral groove 4's shape is regular hexagon, the second revolves the shape of groove 10 and is the cross, screw rod 1, connecting block 2 and nut 3's shape all is cylindrically, screw rod 1's diameter is less than connecting block 2's diameter, nut 3's diameter is greater than connecting block 2's diameter, screw rod 1, connecting block 2 and nut 3's tangent plane is the echelonment, first through-hole 5 and second through-hole 8's quantity is four, first through-hole 5 and second through-hole 8.

The working principle is as follows: when in use, through the first spiral groove 4 of the regular hexagon or the cross-shaped second spiral groove 10 in the first spiral groove 4, the bolt can be fixed or disassembled by users through different fastening tools, the situation that the fastening work can not be carried out due to the limitation of the fastening tools is avoided, and the sealing gasket 6 on the outer surface of the connecting block 2, can improve the sealing effect of the bolt, ensure the sealing performance of the fixed device, can further fasten the fixed bolt by nailing nails with corresponding sizes in the four first through holes 5, thereby greatly improving the fixed effect, the bolt in the utility model has better fixing effect and improved sealing performance, and the fixed device is more stable, meanwhile, the operation of people in fastening or detaching is facilitated, the limitation of fastening tools is avoided, and the application range of the tool is widened.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a echelonment screw rod and nut have bolt in four holes, includes screw rod (1), its characterized in that, the one end fixedly connected with connecting block (2) of screw rod (1), the one end fixedly connected with nut (3) of screw rod (1) are kept away from in connecting block (2), nut (3) keep away from one side outer wall intermediate position of connecting block (2) and seted up first spiral groove (4), first through-hole (5) have been seted up to the edge position internal surface all around of nut (3), seal gasket (6) have been cup jointed in the surface activity of connecting block (2), one side outer wall that seal gasket (6) are close to screw rod (1) is equipped with rubber gasket (7), second through-hole (8) have been seted up to the edge position internal surface all around of seal gasket (6), the surface of screw rod (1) is equipped with screw thread.

2. The stepped screw bolt with the four holes in the nut according to claim 1, wherein a third through hole (9) is formed in the middle of the inner surface of the sealing gasket (6), the third through hole (9) is circular, and the thickness of the sealing gasket (6) is the same as the length of the connecting block (2).

3. The bolt with the stepped screw and the four holes in the nut as claimed in claim 1, wherein the first spiral groove (4) is provided with a second spiral groove (10) on the inner wall of one side close to the screw (1).

4. A stepped screw and nut four-hole bolt according to claim 3, wherein said first spiral groove (4) is in the shape of a regular hexagon and said second spiral groove (10) is in the shape of a cross.

5. The bolt with the four holes in the stepped screw rod and the nut as claimed in claim 1, wherein the screw rod (1), the connecting block (2) and the nut (3) are all cylindrical in shape, the diameter of the screw rod (1) is smaller than that of the connecting block (2), the diameter of the nut (3) is larger than that of the connecting block (2), and the sections of the screw rod (1), the connecting block (2) and the nut (3) are stepped.

6. The stepped screw and nut four-hole bolt according to claim 1, wherein the number of the first through hole (5) and the second through hole (8) is four, and the shape of the first through hole (5) and the second through hole (8) is circular.