CN213982441U

CN213982441U - Structure for connecting pipeline and shell

Info

Publication number: CN213982441U
Application number: CN202022993103.6U
Authority: CN
Inventors: 刘森梧
Original assignee: Guizhou Winstar Hydraulic Transmission Machinery Co Ltd
Current assignee: Guizhou Winstar Hydraulic Transmission Machinery Co Ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-08-17
Anticipated expiration: 2030-12-14

Abstract

The utility model provides a structure for connecting a pipeline and a shell, which comprises a shell and a pipe connected with the shell; the shell is provided with an assembly hole, the assembly hole is sequentially provided with a chamfer and a tool withdrawal groove, and two sides of the inner wall of the assembly hole are provided with threads; the pipe is connected with the shell through the assembling hole, and an O-shaped sealing ring is sleeved at the joint of the pipe and the shell; and a compression nut is assembled in the thread, and the chamfer is matched with an O-shaped sealing ring used in assembly. The utility model has simple structure, few application parts and only three parts; the processing technology is simple, and the general machining technology can meet the requirements; the application range is wide, and the pipe can be used from 5mm to 25mm as long as the wall thickness of the connecting part of the shell is not less than 10 mm.

Description

Structure for connecting pipeline and shell

Technical Field

The utility model relates to a structure that pipeline and casing are connected.

Background

The equipment in the modern engineering machinery field is mostly complex machine, electricity, liquid integration integrated system, and in these systems, there are many oil circuit and the circumstances that the casing links to each other, in the structure that the oil circuit is connected with the casing, except using coupling and welding mode, when certain pipeline is connected with the casing, need to assemble the part at casing one terminal surface, the other terminal surface can't adopt the coupling to connect again, and traditional pipeline connection method can't satisfy the requirement.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a structure that pipeline and casing are connected, the structure that this pipeline and casing are connected has improved the connected mode of pipeline and casing, has solved the problem that such pipeline and casing are connected.

The utility model discloses a following technical scheme can realize.

The utility model provides a structure for connecting a pipeline and a shell, which comprises a shell and a pipe connected with the shell; the shell is provided with an assembly hole, the assembly hole is sequentially provided with a chamfer and a tool withdrawal groove, and two sides of the inner wall of the assembly hole are provided with threads; the pipe is connected with the shell through the assembling hole, and an O-shaped sealing ring is sleeved at the joint of the pipe and the shell; and a compression nut is assembled in the thread, and the chamfer is matched with an O-shaped sealing ring used in assembly.

And the threaded hole of the compression nut is matched with the thread.

And a straight groove is formed in the nut of the compression nut.

The assembly hole is not in direct contact with the outer wall of the pipe, and the clearance is not more than 0.5 mm.

The straight groove is a process groove during assembly and a notch during punching and riveting.

The beneficial effects of the utility model reside in that: the structure is simple, the number of applied parts is small, and only three parts are needed; the processing technology is simple, and the general machining technology can meet the requirements; the application range is wide, and the pipe can be used from 5mm to 25mm as long as the wall thickness of the connecting part of the shell is not less than 10 mm.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the housing of FIG. 1;

fig. 3 is a schematic structural view of the threaded hole of the present invention;

FIG. 4 is a schematic structural view of the straight groove of the present invention;

in the figure: 1-pipe, 2-shell, 21-assembly hole, 22-chamfer, 23-thread, 24-tool withdrawal groove, 3-O-shaped sealing ring, 4-compression nut, 41-threaded hole, 42-straight groove and 5-punching riveting point.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

As shown in fig. 1 to 4, a structure for connecting a pipeline and a shell comprises a shell 2 and a pipe 1 connected with the shell 2; an assembly hole 21 is formed in the shell 2, a chamfer 22 and a tool withdrawal groove 24 are sequentially formed in the assembly hole 21, and threads 23 are formed in two sides of the inner wall of the assembly hole 21; the pipe 1 is connected with the shell 2 through the assembling hole 21, and an O-shaped sealing ring 3 is sleeved at the joint of the pipe 1 and the shell 2; the thread 23 is fitted with a compression nut 4 and the chamfer 22 is matched to the O-ring 3 used during assembly.

The threaded hole 41 of the compression nut 4 is matched to the thread 23.

The nut of the compression nut 4 is provided with a straight groove 42.

The fitting hole 21 is not in direct contact with the outer wall of the pipe 1 with a clearance of not more than 0.5 mm.

The straight groove 42 is a process groove during assembly and a notch during punching and riveting.

Preferably, during assembly, as shown in fig. 1, the pipe 1 is loaded from the assembly hole 21 of the shell 2, then the O-ring 3 is loaded on the pipe 1, and the straight groove on the compression nut 4 is knocked to enable the compression nut 4 to compress the O-ring 3, so that the O-ring 3 and the outer wall of the pipe 1 form a seal; finally, punching and riveting two points (namely, punching and riveting points 5) at the straight groove of the compression nut 4 by using a punch, and locking the compression nut 4 to form the detachable connection of the pipe 1 and the shell 2.

Examples

As described above, the assembly hole, the thread, the chamfer and the relief groove shown in fig. 2 are formed on the housing 2, and then the compression nut 4 matched with the assembly hole is formed according to fig. 3 and 4, the pipe 1 is connected with the housing 2 through the assembly hole 21 in the housing 2, the O-shaped sealing ring 3 is sleeved on the outer wall of the pipe 1, the compression nut 4 is screwed into the thread 23 of the housing 2, the O-shaped sealing ring 3 is compressed, and two points are punched and riveted at the punching and riveting point 5 in fig. 1, so that the assembly is completed.

Further, the fitting hole 21 is not in direct contact with the outer wall of the pipe 1, but the clearance should be not more than 0.5mm, the chamfer needs to be matched with the O-ring 3 used in the fitting, sufficient compression space needs to be ensured, and the thread needs to be matched with the gland nut 4.

Furthermore, the threaded hole 41 of the compression nut 4 and the outer wall of the pipe 1 do not form a matching relationship, and the straight groove on the compression nut 4 is not only a process groove during assembly, but also a notch during punching and riveting.

The utility model discloses utilize gland nut 4 with 3 compression deformation of O shape sealing washer, form the pipeline seal, rivet 5 two punchings of point through dashing, bear the axial force of pipe 1 during operation to form the effective seal of pipe 1 and casing 2.

Claims

1. A structure that pipeline and casing are connected, includes casing (2) and pipe (1) of being connected with casing (2), its characterized in that: an assembly hole (21) is formed in the shell (2), a chamfer (22) and a tool withdrawal groove (24) are sequentially arranged on the assembly hole (21), and threads (23) are arranged on two sides of the inner wall of the assembly hole (21); the pipe (1) is connected with the shell (2) through the assembling hole (21), and an O-shaped sealing ring (3) is sleeved at the joint of the pipe (1) and the shell (2); a compression nut (4) is assembled in the thread (23), and the chamfer (22) is matched with an O-shaped sealing ring (3) used in assembly.

2. The structure for connecting a piping line to a casing according to claim 1, wherein: the threaded hole (41) of the compression nut (4) is matched with the thread (23).

3. The structure for connecting a piping line to a casing according to claim 1, wherein: and a straight groove (42) is arranged on the nut of the compression nut (4).

4. The structure for connecting a piping line to a casing according to claim 1, wherein: the assembly hole (21) is not in direct contact with the outer wall of the pipe (1), and the gap between the assembly hole and the outer wall of the pipe is not more than 0.5 mm.

5. The structure for connecting a piping line to a casing according to claim 3, wherein: the straight groove (42) is a process groove during assembly and a notch during punching and riveting.