Extrusion type sealing bolt self-adaptive to mounting plane
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of sealing bolts, in particular to the technical field of extrusion type sealing bolts adaptive to mounting planes.
[ background of the invention ]
Bolt: mechanical parts, cylindrical threaded fasteners fitted with nuts, fasteners of the type consisting of a head and a screw (a cylinder with external threads), are required to be fitted with a nut for fastening two parts with through holes, and this form of connection is called bolted connection. The existing extrusion type bolt is designed and manufactured in a national standard mode, and in order to achieve good sealing, a sealing flat gasket is additionally arranged at a joint so as to achieve good sealing with the joint. But its fixed simple structure, the function is only used in connecting, can't adjust, uses the limitation big, and whole effect is not good, especially under the different extrusion seal planes and the not uniform condition of bolted connection hole contained angle, leads to partly extrusion seal bolt's extrusion seal structure atress inhomogeneous and produce not hard up side leakage easily, does not reach sealed effect or even directly seals inefficacy.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides a self-adaptive mounting plane extrusion type sealing bolt, which can enable the bolt head of the sealing bolt to deflect around a connecting pin in a self-adaptive manner and be parallel to an extrusion sealing plane, so that the extrusion sealing structure and the extrusion sealing plane are uniformly attached and stressed, the looseness and the side leakage are not easy to generate, and the sealing effect is good.
In order to achieve the purpose, the invention provides an extrusion type sealing bolt with a self-adaptive installation plane, which comprises a bolt rod body, a bolt head, a connecting conical groove, a connecting pin, a sealing groove and an extrusion sealing ring, wherein locking threads are uniformly arranged on the bolt rod body in a surrounding mode, the top of the bolt rod body is provided with the connecting conical head in a regular multi-pyramid shape, the central position of the bottom of the bolt head is provided with the connecting conical groove in the regular multi-pyramid shape corresponding to the position of the connecting conical head, the inner size of the connecting conical groove is larger than the outer size of the connecting conical head, the upper portion of the connecting conical head is connected with the connecting conical groove through the connecting pin, the bottom surface of the bolt head is provided with a plurality of sealing grooves, and the extrusion sealing ring is filled in the sealing grooves.
Preferably, the connecting pin is horizontally arranged in the connecting conical groove, the connecting conical head can rotate around the connecting pin in the connecting conical groove, and the opening diameter of the connecting conical groove is larger than the maximum diameter of the upper part of the bolt rod body.
Preferably, the upper part of the connecting conical head is provided with an arc-shaped connector, and the connecting conical groove is provided with an arc-shaped groove corresponding to the arc-shaped connector.
Preferably, the number of the sealing grooves is multiple, the sealing grooves are uniformly arranged on the bottom surface of the head of the bolt in a surrounding mode, a plurality of backstop protrusions are uniformly arranged between every two adjacent sealing grooves in a surrounding mode, the height of each backstop protrusion is half of the height of the corresponding extrusion sealing ring, the shape of each backstop protrusion is arc-shaped, and a plurality of anti-skidding backstop grains are uniformly arranged at the bottom of each backstop protrusion.
Preferably, the centers of the sealing groove and the bolt head are located on the same vertical axis.
Preferably, the extrusion sealing ring is an elastic rubber sealing ring, and the cross section of the extrusion sealing ring is in a trapezoid shape with a bottom opening gradually increasing.
Preferably, a return spring is clamped in the extrusion sealing ring, a plurality of branched grooves are uniformly and annularly arranged at the bottom of the extrusion sealing ring, and the cross section of each branched groove is triangular.
The invention has the beneficial effects that: according to the invention, the bolt body, the bolt head, the connecting conical groove, the connecting pin, the sealing groove and the extrusion sealing ring are combined together, and through experimental optimization, the bolt head of the sealing bolt can deflect around the connecting pin in a self-adaptive manner and is parallel to the extrusion sealing plane, so that the extrusion sealing structure and the extrusion sealing plane are uniformly attached and stressed, the side leakage caused by looseness is not easy to generate, and the sealing effect is good.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic structural view of a self-adaptive mounting plane extruded seal bolt of the present invention;
fig. 2 is a schematic bottom view of a self-adaptive mounting plane extruded seal bolt of the present invention.
In the figure: 1-bolt body, 2-bolt head, 3-connecting conical head, 4-connecting conical groove, 5-connecting pin, 6-sealing groove, 7-extrusion sealing ring, 8-arc groove, 9-backstop bulge, 10-arc connector, 11-anti-skid backstop line, 12-reset spring and 13-forked groove.
[ detailed description ] embodiments
Referring to fig. 1 and 2, the extrusion type sealing bolt with the self-adaptive installation plane comprises a bolt rod body 1, a bolt head 2, a connecting cone head 3, a connecting cone groove 4, a connecting pin 5, a sealing groove 6 and an extrusion sealing ring 7, wherein locking threads are uniformly arranged on the bolt rod body 1 in a surrounding manner, the top of the bolt rod body 1 is provided with the connecting cone head 3 in a regular multi-pyramid shape, the central position of the bottom of the bolt head 2 is provided with the connecting cone groove 4 in the regular multi-pyramid shape corresponding to the connecting cone head 3, the inner size of the connecting cone groove 4 is larger than the outer size of the connecting cone head 3, the upper part of the connecting cone head 3 is connected with the connecting cone groove 4 through the connecting pin 5, the bottom surface of the bolt head 2 is provided with a plurality of sealing grooves 6, the extrusion sealing rings 7 are filled in the sealing grooves 6, the connecting pin 5 is horizontally arranged in the connecting cone groove 4, the connecting conical head 3 can rotate in the connecting conical groove 4 around the connecting pin 5, the opening diameter of the connecting conical groove 4 is larger than the maximum diameter of the upper part of the bolt rod body 1, the upper part of the connecting conical head 3 is provided with an arc-shaped connector 10, the connecting conical groove 4 is provided with an arc-shaped groove 8 corresponding to the arc-shaped connector 10, the number of the sealing grooves 6 is multiple, the sealing grooves 6 are uniformly arranged on the bottom surface of the bolt head 2 in a surrounding manner, a plurality of backstop protrusions 9 are uniformly arranged between the adjacent sealing grooves 6 in a surrounding manner, the height of the backstop protrusions 9 is half of the height of the extrusion sealing ring 7, the shape of the backstop protrusions 9 is arc-shaped, the bottom of the backstop protrusions 9 is uniformly provided with a plurality of anti-skid backstop lines 11, the circle centers of the sealing grooves 6 and the bolt head 2 are positioned on the same vertical axis, and the extrusion sealing ring 7 is an elastic rubber sealing ring, the cross section shape of extrusion sealing washer 7 is the trapezoidal of bottom opening crescent, press from both sides in the extrusion sealing washer 7 and be equipped with reset spring 12, the bottom of extrusion sealing washer 7 is evenly encircled and is equipped with a plurality of branching recess 13, the cross section shape of branching recess 13 is triangle-shaped.
The invention has the beneficial effects that: according to the invention, the bolt body 1, the bolt head 2, the connecting conical head 3, the connecting conical groove 4, the connecting pin 5, the sealing groove 6 and the extrusion sealing ring 7 are combined together, and through experimental optimization, the bolt head 2 of the sealing bolt can be enabled to deflect around the connecting pin 5 in a self-adaptive manner and be parallel to an extrusion sealing plane, so that the extrusion sealing structure and the extrusion sealing plane are uniformly attached and stressed, the looseness and side leakage are not easy to generate, and the sealing effect is good.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.