CN214788487U - Hexagon head bolt with hole - Google Patents

Abstract

The utility model discloses a hexagonal bolt with hole, including bolt head, screw rod and nut, the bolt head right side is equipped with the convex surface layer, sunken circle has been seted up in the bolt head left side, the cross recess has been seted up in sunken circle, the screw rod sets up the convex surface layer right side at the bolt head, the screw rod right side is equipped with the screw thread, the trompil has been seted up on the screw rod right side, the packing ring has been cup jointed on the screw rod. This foraminiferous hexagon head bolt, be provided with trompil and nut, the end of screw rod passes the object that is fastened after using the bolt, install the nut at the end of screw rod again and go on further fastening to the object, use the round pin axle to pass the trompil simultaneously, position to the nut is restricted, prevent that the bolt from producing under the service environment of long-term vibrations not hard up, be provided with protruding surface course and packing ring, the diameter of protruding surface course is greater than the diameter of screw rod, prevent that the bolt head is direct and the contact of packing ring, cause the wearing and tearing of bolt head, the packing ring sets up on the screw rod, reduce the load of bolt, guarantee the compactness of structure.

Description

Hexagon head bolt with hole

Technical Field

The utility model relates to a hexagon bolt technical field specifically is a take hole hexagon head bolt.

Background

The hexagonal bolt is a fastener consisting of a head and a screw, the bolt is divided into an iron bolt and a stainless steel bolt according to materials, the countersunk head is generally used in places with smooth and non-protruding surfaces after connection according to the shape of the head, and the countersunk head can be screwed into a part and the round head can also be screwed into the part.

Through massive search, the typical disclosure number of the hexagon bolt in the prior art is as follows: the double-hexagon bolt head of CN203548493U includes a bolt head, a screw rod formed by extending downward from the bottom surface of the bolt head, and a thread formed on the outer edge of the screw rod, where the bolt head is composed of a first hexagon bolt head and a second hexagon bolt head which are welded together, the first hexagon bolt head and the screw rod are respectively and fixedly connected to the upper and lower end surfaces of the second hexagon bolt head, the outer diameter of the first hexagon bolt head is smaller than that of the second hexagon bolt head, and an inner hexagon is cut on the upper end surface of the first hexagon bolt head.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take hole hexagon head bolt to the back is used at the bolt that proposes in solving above-mentioned background art, can make between bolt and the nut not hard up when owing to the object that is fastened produces vibrations, and then leads to the shutdown of device or the problem that produces the trouble.

In order to achieve the above object, the utility model provides a following technical scheme: a hexagonal head bolt with a hole, which comprises a bolt head, a screw rod and a nut,

the bolt head comprises a convex surface layer, a concave ring and a cross groove, the convex surface layer is arranged on the right side of the bolt head, the concave ring is arranged on the left side of the bolt head, and the cross groove is formed in the concave ring;

the screw rod, the screw rod includes screw thread, trompil and packing ring, the screw rod sets up the convex surface layer right side at the bolt head, the screw rod right side is equipped with the screw thread, the trompil has been seted up on the screw rod right side, the packing ring has been cup jointed on the screw rod.

Preferably, a through hole is formed in the nut, and the nut is in threaded connection with the thread on the screw rod through the through hole.

Preferably, the section of the convex surface layer is circular, and the diameter of the convex surface layer is larger than that of the screw rod.

Preferably, the bolt head and the screw rod are made of alloy steel, and the gasket is made of carbon steel.

Preferably, the opening is provided on the right side of the thread.

Preferably, the pin shaft is installed in the hole in a penetrating mode.

Compared with the prior art, the beneficial effects of the utility model are that: the hexagonal head bolt with the hole is provided with a screw hole,

(1) the bolt is provided with an opening and a nut, the tail end of the screw penetrates through a fastened object after the bolt is used, the nut is installed at the tail end of the screw to further fasten the object, and meanwhile, a pin shaft penetrates through the opening to limit the position of the nut, so that the bolt is prevented from loosening in a long-term vibration use environment;

(2) the bolt is provided with the convex surface layer and the gasket, the diameter of the convex surface layer is larger than that of the bolt, so that the bolt head is prevented from being directly contacted with the gasket to cause abrasion of the bolt head, and the gasket is arranged on the bolt, so that the load of the bolt is reduced, and the compactness of the structure is ensured;

(3) be provided with sunken circle and cross recess, the design of cross recess prevents that can't loosen after the bolt head is worn and torn, and the design of sunken circle makes the cross recess embedded in the bolt head, reduces the direct contact of cross recess and rainwater, prevents that the cross recess from being corroded and leading to the bolt can't take off.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of the present invention;

fig. 3 is a left-side view structural schematic diagram of the bolt head and the nut of the present invention.

In the figure: 1. the bolt head, 101, the convex layer, 102, the concave ring, 103, the cross groove, 2, the screw rod, 201, the thread, 202, the hole, 203, the gasket, 3, the nut, 301 and the through hole.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a take hole hexagon head bolt, as shown in fig. 1 and 3, bolt head 1 includes convex surface layer 101, sunken circle 102 and cross recess 103, and bolt head 1 right side is equipped with convex surface layer 101, and the cross-section of convex surface layer 101 is circular, and the diameter of convex surface layer 101 is greater than screw rod 2, is favorable to reducing the direct contact of bolt head 1 with packing ring 203, prevents the wearing and tearing of bolt head 1, and sunken circle 102 has been seted up on bolt head 1 left side, has seted up cross recess 103 in sunken circle 102.

As shown in fig. 1 and 2, the screw rod 2 includes a thread 201, an opening 202 and a washer 203, the screw rod 2 is disposed on the right side of the convex layer 101 of the bolt head 1, the thread 201 is disposed on the right side of the screw rod 2, the opening 202 is provided with a pin shaft in a penetrating manner, which is beneficial to preventing the nut 3 from loosening in a long-term vibration use environment, and thus the device is damaged or stops running, the washer 203 is sleeved on the screw rod 2, the bolt head 1 and the screw rod 2 are made of alloy steel, the washer 203 is made of carbon steel, and the washer 203 is prevented from being rusted and stuck with the bolt head 1, so that the bolt is not easy to detach, a through hole 301 is formed in the nut 3, the nut 3 is in threaded connection with the thread 201 on the screw rod 2 through the through hole 301, and the position fixing of the bolt head 1 and the screw rod 2 through the nut 3 is facilitated.

The working principle is as follows: when the hexagonal head bolt with the hole is used, firstly, the bolt head 1 is held by hand, the screw rod 2 penetrates through the hole of an object to be fixed, then the nut 3 is sleeved on the thread 201 of the screw rod 2, the nut 3 is screwed through the threaded connection of the through hole 301 and the thread 201, then the pin shaft penetrates through the hole 202 and is fixed, the nut 3 is prevented from loosening in a long-term vibration environment to cause damage or stop operation of the device, meanwhile, after the bolt is screwed, two sides of the gasket 203 are respectively clung to the convex surface layer 101 and the surface of the object to be fixed, the diameter of the convex surface layer 101 is larger than that of the screw rod 2, the bolt head 1 is prevented from directly contacting with the gasket 203 to cause abrasion of the bolt head 1, the gasket 203 is arranged to reduce the load of the bolt, the structure is ensured to be compact, the cross groove 103 on the left side of the bolt head 1 can be detached by the screwdriver when the bolt head 1 is abraded and can not be screwed down, the design of the recessed ring 102 reduces contact of the cross slots 103 with rain and prevents corrosion of the cross slots 103, which is not described in detail in this specification, is well within the skill of those in the art.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a foraminiferous hexagon head bolt, includes bolt head (1), screw rod (2) and nut (3), its characterized in that:

the bolt head (1), the bolt head (1) comprises a convex surface layer (101), a concave ring (102) and a cross groove (103), the convex surface layer (101) is arranged on the right side of the bolt head (1), the concave ring (102) is arranged on the left side of the bolt head (1), and the cross groove (103) is formed in the concave ring (102);

screw rod (2), screw rod (2) are including screw thread (201), trompil (202) and packing ring (203), screw rod (2) set up convex surface layer (101) right side at bolt head (1), screw rod (2) right side is equipped with screw thread (201), trompil (202) have been seted up on screw rod (2) right side, packing ring (203) has been cup jointed on screw rod (2).

2. The hexagonal head bolt with hole according to claim 1, characterized in that: a through hole (301) is formed in the nut (3), and the nut (3) is in threaded connection with a thread (201) on the screw rod (2) through the through hole (301).

3. The hexagonal head bolt with hole according to claim 1, characterized in that: the cross section of the convex surface layer (101) is circular, and the diameter of the convex surface layer (101) is larger than that of the screw (2).

4. The hexagonal head bolt with hole according to claim 1, characterized in that: the bolt head (1) and the screw rod (2) are made of alloy steel, and the gasket (203) is made of carbon steel.

5. The hexagonal head bolt with hole according to claim 1, characterized in that: the opening (202) is formed on the right side of the thread (201).

6. The hexagonal head bolt with hole according to claim 1, characterized in that: and a pin shaft is arranged in the hole (202) in a penetrating way.

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