CN211738307U

CN211738307U - Thread O-shaped ring sealing ferrule type pipe joint

Info

Publication number: CN211738307U
Application number: CN201921715137.XU
Authority: CN
Inventors: 左学俊
Original assignee: Jianhu Tejia Hydraulic Pipe Fittings Co ltd
Current assignee: Jianhu Tejia Hydraulic Pipe Fittings Co ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-10-23
Anticipated expiration: 2029-10-14

Abstract

The utility model discloses a sealed cutting ferrule formula coupling of screw thread O type circle, including connecting pipe, connector and nut, the cover has nut, first cutting ferrule and second cutting ferrule on the connecting pipe, and the connecting pipe closes with the connector counterbalance, the nut closes for the screw thread soon between the one end inner wall of connector and the connector outer wall to be connected, and nut other end inner wall and first cutting ferrule outer wall laminate mutually to the nut has the lug towards the inner wall welded connection in first cutting ferrule toper face, the connector is fixed to bond on the wall body of connecting pipe one end has the sealing washer, and the sealing washer laminates mutually with the second cutting ferrule, annular is seted up flutedly on the first cutting ferrule, and the inside compressing tightly pole that is provided with of recess. This sealed cutting ferrule formula coupling of screw thread O type circle is provided with first cutting ferrule, second cutting ferrule and sealing washer, realizes the fixed to the connecting pipe through first cutting ferrule, second cutting ferrule to the axial rotation who lives the connecting pipe is restricted, realizes the leakproofness between connecting pipe and the connector through the sealing washer.

Description

Thread O-shaped ring sealing ferrule type pipe joint

Technical Field

The utility model relates to a cutting ferrule formula coupling technical field specifically is a sealed cutting ferrule formula coupling of screw thread O type circle.

Background

The connecting pipe is fixed through the cutting ferrule to current cutting ferrule coupling, the axial of restriction connecting pipe is rotated, and realize sealing through O type sealing washer, nevertheless to some pipe fittings that the surface is more smooth, the fixed effect of cutting ferrule is relatively poor, the pipe fitting after fixing still has the pivoted possibility of taking place, and then influenced holistic sealed effect, the practicality is not strong, can not satisfy people's user demand, in view of the defect that exists among the above prior art, it is necessary to improve it, make it more possess the practicality, just can accord with the in-service use condition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thread O type circle seals cutting ferrule formula coupling to solve the more glossy pipe fitting in some surfaces that provide among the above-mentioned background art, the fixed effect of cutting ferrule is relatively poor, and the pipe fitting after fixing still has the pivoted possibility of taking place, and then has influenced the problem of holistic sealed effect.

In order to achieve the above object, the utility model provides a following technical scheme: a threaded O-shaped ring sealing ferrule type pipe joint comprises a connecting pipe, a connector and a nut, wherein the connecting pipe is sleeved with the nut, a first ferrule and a second ferrule, the connecting pipe is abutted against the connector, the inner wall of one end of the nut, facing the connector, is connected with the outer wall of the connector in a threaded screwing manner, the inner wall of the other end of the nut is attached to the outer wall of the first ferrule, a projection is welded and connected to the inner wall of the nut, facing the conical surface of the first ferrule, a sealing ring is fixedly bonded to the wall body of one end of the connector, the sealing ring is attached to the second ferrule, a groove is annularly formed in the first ferrule, a pressing rod is arranged in the groove, the pressing rod horizontally extends outwards to form a rotating shaft facing the side wall of the groove, the rotating shaft is movably connected with the first ferrule at the groove wall of the groove through a bearing, and a hole groove is vertically and inwards, the hole inslot portion is provided with the rubber strip, and equidistant the slot of having seted up on the outer wall of rubber strip, the top of rubber strip and the cell wall fixed bonding in hole groove, and the bottom of rubber strip is the hemisphere form.

Preferably, an inner diameter of an end of the first ferrule facing the second ferrule is smaller than an inner diameter of an end of the second ferrule facing the first ferrule.

Preferably, the compressing rod is of a rectangular columnar structure, and the length of the compressing rod is greater than that of the groove.

Preferably, the length of the rubber strip is greater than that of the hole groove, and the rubber strip is made of sticky rubber.

Preferably, the whole lug is of a circular ring-shaped structure, the cross section of the lug is of a rectangular structure, and the opposite side surfaces of the lug and the second clamping sleeve are parallel to each other.

Compared with the prior art, the beneficial effects of the utility model are that: the threaded O-shaped ring sealing ferrule type pipe joint is provided with a first ferrule, a second ferrule and a sealing ring, the connecting pipe is fixed through the first ferrule and the second ferrule, so that the axial rotation of the connecting pipe is limited, and the sealing performance between the connecting pipe and the connecting head is realized through the sealing ring;

be provided with the compressing tightly pole on the first cutting ferrule, when making connecting pipe and connector firm in connection through rotating the nut, first cutting ferrule is under the axial displacement of nut drives, draws close together with the second draw-in groove mutually, and the compressing tightly pole on it is perpendicular form by the extrusion like this for compress tightly the rubber strip on the pole and can support tightly with the outer wall of connecting pipe, thereby the two cutting ferrules of rubber strip cooperation can be fixed smooth surface's pipe fitting, has guaranteed holistic leakproofness, and the practicality is strong.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic side view of the first card sleeve of the present invention;

fig. 3 is the schematic sectional structure diagram of the compressing rod of the present invention.

In the figure: 1. connecting pipe, 2, connector, 3, nut, 4, first cutting ferrule, 5, second cutting ferrule, 6, sealing washer, 7, recess, 8, compress tightly the pole, 9, rotation axis, 10, hole groove, 11, rubber strip, 12, slot, 13, lug.

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: a thread O-shaped ring sealing ferrule type pipe joint comprises a connecting pipe 1, a connector 2 and a nut 3, wherein the connecting pipe 1 is sleeved with the nut 3, a first ferrule 4 and a second ferrule 5, the connecting pipe 1 is abutted against the connector 2, the inner wall of one end of the nut 3 facing the connector 2 is connected with the outer wall of the connector 2 in a threaded screwing manner, the inner wall of the other end of the nut 3 is attached to the outer wall of the first ferrule 4, a projection 13 is welded and connected to the inner wall of the nut 3 facing the conical surface of the first ferrule 4, a sealing ring 6 is fixedly bonded on the wall body of one end of the connector 2 facing the connecting pipe 1, the sealing ring 6 is attached to the second ferrule 5, when the nut 3 is rotated to move along the axial direction of the connecting pipe 1, the nut can extrude the first ferrule 4 to extrude the second ferrule 5, and further enable the second ferrule 5 to abut against the sealing ring, and then can guarantee the tightness between connecting pipe 1 and connector 2, the annular offers the groove 7 on the first cutting ferrule 4, and there are hold-down levers 8 in the groove 7, hold-down levers 8 extend outward and form the axis of rotation 9 towards the upper level of sidewall of groove 7, and the axis of rotation 9 is connected with bearing swing joint between the first cutting ferrule 4 of groove 7 cell wall department, and the bottom surface of the hold-down levers 8 extends inward and forms the hole trough 10 vertically, there are rubber strips 11 in the hole trough 10, and equipartition has slots 12 on the outer wall of rubber strip 11, the top of the rubber strip 11 is fixedly bonded with cell wall of the hole trough 10, and the bottom of the rubber strip 11 is a hemisphere, the rubber strip 11 becomes the tight process of supporting with the outer wall of connecting pipe 1 from the contact, the rubber strip 11 can be squeezed, and then the rubber strip 11 can take place compression deformation in the hole trough 10 through the slot 12 above-mentioned, make the rubber strip 11 and the outer wall of connecting pipe 1 laminate, the two components can limit the smooth pipe fitting through friction force and adhesion force.

The end that the bore length of both inner chambers of first cutting ferrule 4 and second cutting ferrule 5 is great is relative, and the one end internal diameter that first cutting ferrule 4 faced second cutting ferrule 5 is less than the one end internal diameter that second cutting ferrule 5 faced first cutting ferrule 4, and first cutting ferrule 4 can consider with second cutting ferrule 5 like this under the drive of 3 axial displacement of nut to compress tightly pole 8 on it can contact with second cutting ferrule 5, and compress tightly pole 8 like this and can receive the extrusion and take place to rotate, finally makes the rubber strip 11 on it offset tightly with the outer wall of connecting pipe 1.

Compress tightly pole 8 and be rectangle columnar structure, and the length that compresses tightly pole 8 is greater than the length of recess 7, and the part that compresses tightly pole 8 and exceeds recess 7 like this can be along with first draw-in groove 4 when removing, can be to the contact with second cutting ferrule 5, makes through rotation axis 9 at last to compress tightly pole 8 and take place to rotate rational in infrastructure in recess 7.

Rubber strip 11's length is greater than the length of hole groove 10, and rubber strip 11 is the viscidity rubber material, when compressing tightly 8 rotations of pole, rubber strip 11 on it can with the outer wall laminating of connecting pipe 1 and support tightly gradually, last rubber strip 11 can be inseparable with the laminating of connecting pipe 1 outer wall like this, make frictional force between the two big like this, make connecting pipe 1 be difficult to take place the axial rotation, still there is viscidity between the two simultaneously, make both adhesion together, cooperate frictional force between the two, thereby restriction has been carried out connecting pipe 1 effectively.

The whole ring form structure that is of lug 13, and the section of lug 13 is the rectangle structure to lug 13 and the relative side surface of second cutting ferrule 5 are parallel to each other, like this when compressing tightly pole 8 and receiving the extrusion back of second cutting ferrule 5, can take place to rotate, and the top that compresses tightly pole 8 at last is compressed tightly between lug 13 and second cutting ferrule 5, makes to compress tightly 8 times of pole and fixes, and it can restrict connecting pipe 1 to compress tightly pole 8 through the rubber strip 11 above that.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sealed cutting ferrule formula coupling of screw thread O type circle, includes connecting pipe (1), connector (2) and nut (3), its characterized in that: the connecting pipe (1) is sleeved with a nut (3), a first clamping sleeve (4) and a second clamping sleeve (5), the connecting pipe (1) is abutted against the connector (2), the nut (3) is connected with the outer wall of the connector (2) in a threaded screwing mode towards the inner wall of one end of the connector (2), the inner wall of the other end of the nut (3) is attached to the outer wall of the first clamping sleeve (4), a convex block (13) is welded and connected with the inner wall of the conical surface of the first clamping sleeve (4) towards the nut (3), a sealing ring (6) is fixedly bonded on the wall body of one end of the connector (2) towards the connecting pipe (1), the sealing ring (6) is attached to the second clamping sleeve (5), a groove (7) is formed in the first clamping sleeve (4) in a ring shape, a pressing rod (8) is arranged inside the groove (7), the pressing rod (8) extends outwards towards the upper level of the side wall of the groove (7) to form, and be bearing swing joint between first cutting ferrule (4) of rotation axis (9) and recess (7) cell wall department to the bottom surface of compressing tightly pole (8) is perpendicular to inwards extending and is formed with hole groove (10), hole groove (10) inside is provided with rubber strip (11), and equidistant slot (12) of having seted up on the outer wall of rubber strip (11), the top of rubber strip (11) and the cell wall fixed bonding of hole groove (10), and the bottom of rubber strip (11) is the hemispheroid form.

2. The threaded O-ring sealing ferrule type fitting of claim 1, wherein: the inner diameter of one end, facing the second clamping sleeve (5), of the first clamping sleeve (4) is smaller than that of one end, facing the first clamping sleeve (4), of the second clamping sleeve (5).

3. The threaded O-ring sealing ferrule type fitting of claim 1, wherein: the pressing rod (8) is of a rectangular columnar structure, and the length of the pressing rod (8) is larger than that of the groove (7).

4. The threaded O-ring sealing ferrule type fitting of claim 1, wherein: the length of the rubber strip (11) is greater than that of the hole groove (10), and the rubber strip (11) is made of sticky rubber.

5. The threaded O-ring sealing ferrule type fitting of claim 1, wherein: the whole lug (13) is of a circular ring-shaped structure, the section of the lug (13) is of a rectangular structure, and the opposite side surfaces of the lug (13) and the second clamping sleeve (5) are parallel to each other.