CN217603573U

CN217603573U - Connecting piece for petroleum pipe

Info

Publication number: CN217603573U
Application number: CN202121571285.6U
Authority: CN
Inventors: 张扬; 陶宏亮; 杨学松; 阚勇
Original assignee: Gaoyou Huaxing Petroleum Pipe Fittings Manufacturing Co ltd
Current assignee: Gaoyou Huaxing Petroleum Pipe Fittings Manufacturing Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-10-18
Anticipated expiration: 2031-07-12

Abstract

The utility model discloses a connecting piece for petroleum pipes, which comprises a connecting piece main body, wherein a through hole is arranged at one end edge of the connecting piece main body in a penetrating manner, a bolt is arranged in the through hole in a penetrating manner, one end of the connecting piece main body, which is far away from the bolt, is arranged on the pipe, one end of the pipe, which is close to the connecting piece main body, is provided with a connecting ring, a screw hole is arranged in the connecting ring in a penetrating manner, a screw hole is arranged in the screw hole in a penetrating manner, a countersunk screw is arranged in the screw hole in a penetrating manner, a clamping groove is arranged on the inner wall of one end of the connecting piece main body, which is close to the bolt, and a sealing seat is arranged in the clamping groove; according to the connecting piece for the petroleum pipes, the clamping groove, the connecting ring and the countersunk head screw are arranged, so that the pipes can be connected more conveniently on the premise of meeting the requirement of stable connection between the pipes, and the trouble of welding and fixing the flange and the pipes is avoided; through the arrangement of the sealing sleeve and the sealing seat, the tightness of connection between the sealing sleeve and the side wall of the pipe can be enhanced, and the tightness of connection between the pipe is enhanced.

Description

Connecting piece for petroleum pipe

Technical Field

The utility model relates to a petroleum tubular product technical field specifically is a connecting piece for petroleum tubular product.

Background

The petroleum pipe is a long-strip steel material with a hollow cross section and without seams at the periphery, and is widely used for manufacturing structural parts and mechanical parts, such as petroleum drill pipes, automobile transmission shafts, bicycle frames, steel scaffold used in construction moving pictures and the like.

The prior art has the following defects or problems:

1. the existing petroleum pipes are usually connected by welding flanges, but the petroleum pipes have large volume and the welding process is troublesome to operate, so that the burden is caused to workers;

2. when the existing petroleum pipe is connected by using a flange, the internal sealing ring is easy to wear after being used for a long time. And further causes the limited tightness of the connection between the petroleum pipes, resulting in petroleum leakage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a connecting piece for oil tubular product to the weak point of prior art to solve the problem that provides in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a connecting piece for petroleum pipe, includes the connecting piece main part, connecting piece main part one end edge runs through and is provided with the through-hole, the inside bolt that runs through of through-hole is provided with, the one end setting and the tubular product that the bolt was kept away from to the connecting piece main part, the one end that tubular product is close to the connecting piece main part is provided with the go-between, the inside screw that runs through of go-between is provided with, the inside countersunk screw that runs through of screw is provided with, the one end inner wall that the connecting piece main part is close to the bolt is provided with the draw-in groove, the inside seal receptacle that is provided with of draw-in groove, one side that the bolt was kept away from to the seal receptacle is provided with the seal cover.

As the utility model discloses an optimal technical scheme, the connecting piece main part comprises two sets of flanges, the bolt runs through the flange through the through-hole, through bolt fixed connection between two sets of flanges.

As the utility model discloses a preferred technical scheme, go-between internal diameter size is the same with tubular product internal diameter size, the outer table wall of go-between is the arc, the countersunk screw passes through the screw and runs through the go-between, the go-between passes through countersunk screw and tubular product fixed connection.

As the utility model discloses an optimized technical scheme, the draw-in groove is the ring form, the draw-in groove is in the one end that connecting piece main part inner wall is close to the bolt, go-between external diameter and draw-in groove internal diameter looks adaptation, go-between and draw-in groove joint.

As an optimal technical scheme of the utility model, the seal receptacle is the ring form, the seal receptacle material is silicon rubber, seal receptacle external diameter and draw-in groove internal diameter size looks adaptation, the seal receptacle is in inside the draw-in groove.

As the utility model discloses a preferred technical scheme, the seal cover is cylindricly, the seal cover material is silicon rubber, seal cover and connecting piece main part, draw-in groove inner wall fixed connection, the seal cover inner wall contacts with the tubular product lateral wall.

As the utility model discloses a preferred technical scheme, seal cover and the inside equal cavity of seal receptacle, seal receptacle and seal cover fixed connection, the seal receptacle communicates with each other with the seal cover inner chamber.

Compared with the prior art, the utility model provides a connecting piece for oil tubular product possesses following beneficial effect:

1. according to the connecting piece for the petroleum pipes, the clamping groove, the connecting ring and the countersunk head screw are arranged, the flange is sleeved at the port of the pipe to be connected, the pipe penetrates through the clamping groove and extends out from one end, close to the bolt, of the flange, the countersunk head screw penetrates through the connecting ring, the connecting ring is connected and fixed with the pipe, the pipe is clamped in the flange by the connecting ring and the clamping groove, the pipe is limited from falling off from the flange, the two groups of flanges are connected by the bolt, stable connection between the pipes is realized, the trouble of welding and fixing the flanges and the pipe is avoided, and the pipe is more convenient to connect on the premise of stable connection;

2. this connecting piece for oil tubular product, through setting up seal cover and seal receptacle, utilize the seal receptacle to seal up two sets of tubular product ports linking department, the tubular product port extrudees the seal receptacle simultaneously for the seal receptacle pressurized deformation, the air admission seal cover in the seal receptacle makes the inside inflation of seal cover, and then the compactness that reinforcing seal cover and tubular product lateral wall are connected, thereby the leakproofness that reinforcing tubular product is connected.

Drawings

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

FIG. 2 is a front sectional structure of the present invention;

FIG. 3 is a schematic view of the connection structure between the tube and the connection ring of the present invention;

fig. 4 is a front sectional schematic view of the connection structure of the sealing sleeve and the sealing seat of the present invention.

In the figure: 1. a connector body; 2. a through hole; 3. a bolt; 4. a pipe; 5. a connecting ring; 6. a screw hole; 7. countersunk screws; 8. a card slot; 9. a sealing seat; 10. and (5) sealing the sleeve.

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. 1-4, in this embodiment: the utility model provides a connecting piece for oil tubular product, including connecting piece

main part

1, 1 one end edge of connecting piece main part runs through and is provided with through-hole 2, the inside bolt 3 that runs through of through-hole 2, the one end setting and the tubular product 4 of bolt 3 are kept away from to connecting piece main part 1, tubular product 4 is close to the one end of connecting piece main part 1 and is provided with go-between 5, the inside screw 6 that runs through of go-between 5 is provided with, the inside screw 6 that runs through of screw 6 is provided with countersunk screw 7, the one end inner wall that connecting piece main part 1 is close to bolt 3 is provided with draw-in groove 8, the inside seal receptacle 9 that is provided with of draw-in groove 8, one side that bolt 3 was kept away from to seal receptacle 9 is provided with seal cover 10.

In the embodiment, the connecting piece main body 1 consists of two groups of flanges, bolts 3 penetrate through the flanges through holes 2, and the two groups of flanges are fixedly connected through the bolts 3 and are used as main connecting structures for connecting pipes 4; the inner diameter of the connecting ring 5 is the same as that of the pipe 4, the outer surface wall of the connecting ring 5 is arc-shaped, a countersunk screw 7 penetrates through the connecting ring 5 through a screw hole 6, the connecting ring 5 is fixedly connected with the pipe 4 through the countersunk screw 7, and the countersunk screw 7 is utilized to fix the connecting ring 5 at a port of the pipe 4 to be connected; the clamping groove 8 is annular, the clamping groove 8 is positioned at one end, close to the bolt 3, of the inner wall of the connecting piece main body 1, the outer diameter size of the connecting ring 5 is matched with the inner diameter size of the clamping groove 8, the connecting ring 5 is clamped with the clamping groove 8, the pipe 4 is clamped inside the flange, and the pipe 4 is limited from falling off from the flange; the sealing seat 9 is annular, the sealing seat 9 is made of silicon rubber, the outer diameter of the sealing seat 9 is matched with the inner diameter of the clamping groove 8, the sealing seat 9 is positioned in the clamping groove 8, and the joint of the ports of the two groups of pipes 4 is sealed by the sealing seat 9; the sealing sleeve 10 is cylindrical, the sealing sleeve 10 is made of silicon rubber, the sealing sleeve 10 is fixedly connected with the connecting piece main body 1 and the inner wall of the clamping groove 8, the inner wall of the sealing sleeve 10 is in contact with the side wall of the pipe 4, and a gap between the pipe 4 and the flange is sealed by the sealing sleeve 10; the sealing sleeve 10 and the sealing seat 9 are both hollow, the sealing seat 9 is fixedly connected with the sealing sleeve 10, the sealing seat 9 is communicated with the inner cavity of the sealing sleeve 10, the sealing seat 9 is extruded by the pipe 4, the sealing seat 9 is deformed under pressure, and air in the sealing seat 9 enters the sealing sleeve 10, so that the sealing sleeve 10 is inflated and expanded, and the tightness of connection between the sealing sleeve 10 and the side wall of the pipe 4 is further enhanced.

The utility model discloses a theory of operation and use flow: the user firstly sleeves a flange at a port to be connected of a pipe 4, the pipe 4 penetrates through a clamping groove 8 and extends out from one end, close to a bolt 3, of the flange, a countersunk screw 7 penetrates through a connecting ring 5, the connecting ring 5 and the pipe 4 are fixedly connected, the connecting ring 5 and the clamping groove 8 are connected, the pipe 4 is clamped inside the flange, the pipe 4 is limited to fall off from the flange, the bolt 3 is reused for connecting two groups of flanges, stable connection between the pipes 4 is further realized, the trouble of welding and fixing the flange and the pipe 4 is avoided, meanwhile, the port of the pipe 4 extrudes a sealing seat 9, the sealing seat 9 is deformed under pressure, air in the sealing seat 9 enters a sealing sleeve 10, the sealing sleeve 10 is inflated and expanded, the tightness of connection between the sealing sleeve 10 and the side wall of the pipe 4 is further enhanced, and the tightness of connection of the pipe 4 is further enhanced.

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

1. A connecting piece for petroleum pipes is characterized in that: including connecting piece main part (1), connecting piece main part (1) one end edge runs through and is provided with through-hole (2), through-hole (2) inside runs through and is provided with bolt (3), the one end setting and tubular product (4) that bolt (3) were kept away from in connecting piece main part (1), the one end that tubular product (4) are close to connecting piece main part (1) is provided with go-between (5), go-between (5) inside runs through and is provided with screw (6), screw (6) inside runs through and is provided with countersunk screw (7), the one end inner wall that connecting piece main part (1) is close to bolt (3) is provided with draw-in groove (8), draw-in groove (8) inside is provided with seal receptacle (9), one side that bolt (3) were kept away from in seal receptacle (9) is provided with seal cover (10).

2. The connecting member for petroleum pipes according to claim 1, characterized in that: the connecting piece main body (1) is composed of two sets of flanges, the bolts (3) penetrate through the flanges through the through holes (2), and the two sets of flanges are fixedly connected through the bolts (3).

3. The connecting member for petroleum pipes according to claim 1, characterized in that: the inner diameter of the connecting ring (5) is the same as that of the pipe (4), the outer surface wall of the connecting ring (5) is arc-shaped, the countersunk head screw (7) penetrates through the connecting ring (5) through the screw hole (6), and the connecting ring (5) is fixedly connected with the pipe (4) through the countersunk head screw (7).

4. The connecting member for petroleum pipes according to claim 1, characterized in that: draw-in groove (8) are the ring form, draw-in groove (8) are in the one end that connecting piece main part (1) inner wall is close to bolt (3), go-between (5) external diameter size and draw-in groove (8) internal diameter size looks adaptation, go-between (5) and draw-in groove (8) joint.

5. The connecting member for petroleum pipes according to claim 1, characterized in that: the sealing seat (9) is annular, the sealing seat (9) is made of silicon rubber, the outer diameter of the sealing seat (9) is matched with the inner diameter of the clamping groove (8), and the sealing seat (9) is located inside the clamping groove (8).

6. The connecting member for petroleum pipes according to claim 1, characterized in that: the sealing sleeve (10) is cylindrical, the sealing sleeve (10) is made of silicon rubber, the sealing sleeve (10) is fixedly connected with the inner wall of the connecting piece main body (1) and the inner wall of the clamping groove (8), and the inner wall of the sealing sleeve (10) is in contact with the side wall of the pipe (4).

7. The connecting member for petroleum pipes according to claim 1, characterized in that: the sealing sleeve (10) and the sealing seat (9) are hollow, the sealing seat (9) is fixedly connected with the sealing sleeve (10), and the sealing seat (9) is communicated with the inner cavity of the sealing sleeve (10).