CN212691108U - Flaring type pipe joint nut - Google Patents

Abstract

The utility model belongs to the technical field of pipe joint nuts, in particular to a flared pipe joint nut, which comprises a hexagonal nut head, a first connecting pipe and a second connecting pipe, the hexagonal nut head is positioned outside the second connecting pipe, the first connecting pipe and the second connecting pipe are positioned on the same central axis, a nut head main body is arranged outside the first connecting pipe, seal gasket and No. two seal gaskets of combination formula that is equipped with through nut head main part one side, the sealing washer that exists when cooperation No. two seal gaskets on and No. two seal gaskets and a seal gasket combination, the laminating circle, can effectively increase the leakproofness between connecting piece and the nut, utilize the kelly to pass the perforation and the grafting design in the joint advances the jack, make nut head main part, the connection that a seal gasket and No. two seal gaskets can be reliable is in the same place, the high-efficient stable use operation of flared pipe coupling nut has been guaranteed.

Description

Flaring type pipe joint nut

Technical Field

The utility model belongs to the technical field of the coupling nut, concretely relates to flaring formula coupling nut.

Background

The nut is a nut, and is screwed together with a bolt or a screw rod to play a fastening role, an element which is necessary for all production and manufacturing machines is divided into carbon steel, stainless steel, nonferrous metal (such as copper) and the like according to different materials, the nut is a part for tightly connecting mechanical equipment, the nut and the bolt can be connected together only through the inner threads with the same specification, for example, the nut of M4-P0.7 can be connected with the bolt of M4-P0.7 series (in the nut, M4 means that the inner diameter of the nut is about 4mm, 0.7 means that the distance between two thread teeth is 0.7mm), the American product is also the same, for example, the nut of 1/4-20 can only be matched with the screw rod of 1/4-20, at present, the pipe joint is widely applied in the field of fluid transmission, and is used for the connection of pipelines and elements in the fluid system, the nut for the flared pipe joint is poor in sealing performance in the using process, and normal use conditions are affected along with increase of time.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems existing in the prior art, the utility model provides a flared pipe joint nut, which has the characteristic of better sealing performance of the pipe joint.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a flaring formula coupling nut, includes hexagon nut head, first connecting pipe and second connecting pipe, the hexagon nut head is located the outside of second connecting pipe, first connecting pipe with the second connecting pipe is located same center axis, the outside of first connecting pipe is equipped with nut head main part, one side of nut head main part is provided with a seal gasket and No. two seal gaskets, No. two seal gaskets are close to one side integrated into one piece of nut head main part has the kelly, a seal gasket with in the nut head main part with the position department that the kelly corresponds has seted up perforation and jack, No. two seal gasket's gomphosis has the sealing washer on the surface, just No. two seal gasket's avris bonds and has laminating circle and lug, laminating circle with lug formula structure as an organic whole, on No. one seal gasket with No. two seal gaskets, And the positions of the attaching ring corresponding to the bumps are provided with clamping grooves.

As the utility model discloses a preferred technical scheme of flaring formula coupling nut, No. two seal gaskets the laminating circle with the lug constitutes seal assembly jointly, and seal assembly's size with the inside size phase-match of draw-in groove.

As the utility model discloses a preferred technical scheme of flaring formula coupling nut, the kelly is provided with threely altogether, and is three the kelly is triangular distribution.

As the utility model discloses a preferred technical scheme of flared pipe joint nut, the line that is equipped with on the inner circle wall of nut head main part with the external screw thread that distributes on the first connecting pipe outer wall agrees with mutually, No. two seal gasket with seal gasket's central point puts and all is equipped with the through-hole.

As the utility model discloses a flared formula coupling nut preferred technical scheme, the sealing washer with the laminating circle is rubber component.

As the utility model discloses a preferred technical scheme of flared pipe joint nut, it has a plurality of anti-skidding grooves to distribute on the outside wall of nut head main part.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses when using, seal gasket and No. two seal gaskets of the combination formula that is equipped with through nut head main part one side, the sealing washer that exists when cooperation No. two seal gaskets and a seal gasket combination, the laminating circle, sealing washer and laminating circle are the rubber component, can effectively increase the leakproofness between connecting piece and the nut, and the gasket can be changed at any time, can reduce extravagant phenomenon, utilize the kelly to pass the grafting design in perforation and the joint advances the jack, make nut head main part, the connection that seal gasket and No. two seal gaskets can be reliable is in the same place, the gasket can be removed to the part of rotatory nut head main part, make stable and inseparable connection of gasket and connecting piece, the operation of using flared pipe coupling nut high efficiency and stability has been guaranteed.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of an explosion structure of the nut head main body and the gasket of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: 1. a hex nut head; 2. a first connecting pipe; 3. a second connecting pipe; 4. an external thread; 5. a nut head main body; 6. a first sealing gasket; 7. a second sealing gasket; 8. a seal ring; 9. fitting rings; 10. a bump; 11. a card slot; 12. a clamping rod; 13. perforating; 14. a jack; 15. an anti-slip groove; 16. and a 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.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a flared pipe joint nut comprises a hexagonal nut head 1, a first connecting pipe 2 and a second connecting pipe 3, wherein the hexagonal nut head 1 is located outside the second connecting pipe 3, the first connecting pipe 2 and the second connecting pipe 3 are located on the same central axis, a nut head main body 5 is arranged outside the first connecting pipe 2, a first sealing gasket 6 and a second sealing gasket 7 are arranged on one side of the nut head main body 5, a clamping rod 12 is integrally formed on one side, close to the nut head main body 5, of the second sealing gasket 7, a through hole 13 and a jack 14 are formed in the first sealing gasket 6 and the nut head main body 5 and correspond to the clamping rod 12, a sealing ring 8 is embedded in the surface of the second sealing gasket 7, a sealing gasket attaching ring 9 and a bump 10 are bonded on the side of the second sealing gasket 7, the attaching ring 9 and the bump 10 are of an integrated structure, and the first sealing gasket 7, the second sealing gasket 7 and the first sealing gasket, The position that laminating circle 9 and lug 10 correspond has seted up draw-in groove 11, and in this embodiment, utilize corresponding connecting elements and applied subassembly, guaranteed the high-efficient stable operation of using of flaring formula coupling nut.

Specifically, No. two seal gaskets 7, laminating circle 9 and lug 10 constitute seal assembly jointly, and seal assembly's size and the inside size phase-match of draw-in groove 11, and in this embodiment, seal assembly card is in draw-in groove 11 for seal assembly and a seal gasket 6 are reliably connected.

Specifically, three clamping rods 12 are arranged, and the three clamping rods 12 are distributed in a triangular shape, in this embodiment, the three clamping rods 12 pass through the corresponding through holes 13 and are clamped into the corresponding insertion holes 14, so that the nut head main body 5, the first sealing gasket 6 and the second sealing gasket 7 can be reliably connected together,

specifically, the line that is equipped with on the 5 inner circle walls of nut head main part and the external screw thread 4 that distributes on 2 outer walls of first connecting pipe agree with mutually, and the central point of No. two seal gasket 7 and seal gasket 6 puts and all is equipped with through-hole 16, and in this embodiment, the setting of through-hole 16 has guaranteed the normal use process to No. two seal gasket 7 and seal gasket 6, and the external screw thread 4 and the line that agree with mutually have guaranteed going on in order of 5 rotating processes of nut head main part.

Specifically, sealing washer 8 and laminating circle 9 are the rubber component, and in this embodiment, the rubber component has better sealing performance, provides better airtight effect of connection for the junction.

Specifically, a plurality of anti-skidding grooves 15 are distributed on the outer side wall surface of the nut head main body 5, and in the embodiment, the anti-skidding grooves 15 are arranged, so that the nut head main body 5 is not easy to slip by a hand of a person.

The utility model discloses a theory of operation and use flow: in the using process of the utility model, when the pipe joint is connected with the connecting piece, the nut head main body 5 on the first connecting pipe 2 can be connected with the connecting piece, then the part of the nut head main body 5 can be rotated to carry out the process of moving the first sealing gasket 6 and the second sealing gasket 7, so that one side surface of the assembly of the first sealing gasket 6 and the second sealing gasket 7 can be tightly connected with the connecting piece, thereby well preventing the generation of water leakage, wherein, the sealing ring 8 and the laminating ring 9 existing when the second sealing gasket 7 is combined with the first sealing gasket 6 are rubber components, the sealing ring 8 and the laminating ring 9 are rubber components, the sealing property between the connecting piece and the nut can be effectively increased, meanwhile, the first sealing gasket 6 and the second sealing gasket 7 can be reliably connected, the gaskets can be replaced at any time, the waste phenomenon can be reduced, the clamping rod 12 passes through the perforation 13 and is clamped into the inserting design in the, make nut head main part 5, a seal gasket 6 and No. two seal gaskets 7 can be reliable link together for a seal gasket 6 and No. two seal gaskets 7 subassemblies move together along with the rotatory process of nut head main part 5 at the in-process that removes, make its stable removal laminating on the connecting piece surface, guaranteed the high-efficient stable operation of using of flared pipe joint nut.

Finally, it should be noted that: 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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a flaring formula coupling nut, includes hexagon nut head (1), first connecting pipe (2) and second connecting pipe (3), its characterized in that: the hexagonal nut head (1) is positioned outside the second connecting pipe (3), the first connecting pipe (2) and the second connecting pipe (3) are positioned on the same central axis, a nut head main body (5) is arranged outside the first connecting pipe (2), a first sealing gasket (6) and a second sealing gasket (7) are arranged on one side of the nut head main body (5), a clamping rod (12) is integrally formed on one side, close to the nut head main body (5), of the second sealing gasket (7), a through hole (13) and an insertion hole (14) are formed in the positions, corresponding to the clamping rod (12), in the first sealing gasket (6) and the nut head main body (5), a sealing ring (8) is embedded on the surface of the second sealing gasket (7), and an attaching ring (9) and a convex block (10) are bonded on the side of the second sealing gasket (7), the joint ring (9) and the lug (10) are of an integrated structure, and a clamping groove (11) is formed in the position, corresponding to the second sealing gasket (7), the joint ring (9) and the lug (10), of the first sealing gasket (6).

2. A flared tube fitting nut as defined in claim 1, wherein: the second sealing gasket (7), the attaching ring (9) and the bump (10) jointly form a sealing assembly, and the size of the sealing assembly is matched with the size inside the clamping groove (11).

3. A flared tube fitting nut as defined in claim 1, wherein: the clamping rods (12) are three in number, and the clamping rods (12) are distributed in a triangular mode.

4. A flared tube fitting nut as defined in claim 1, wherein: the inner ring wall surface of the nut head main body (5) is provided with lines matched with the external threads (4) distributed on the outer wall of the first connecting pipe (2), and the center positions of the second sealing gasket (7) and the first sealing gasket (6) are provided with through holes (16).

5. A flared tube fitting nut as defined in claim 1, wherein: the sealing ring (8) and the attaching ring (9) are both rubber components.

6. A flared tube fitting nut as defined in claim 1, wherein: a plurality of anti-skidding grooves (15) are distributed on the outer side wall surface of the nut head main body (5).

Images