CN216896356U

CN216896356U - Reducing pipe with protective shell

Info

Publication number: CN216896356U
Application number: CN202123203405.XU
Authority: CN
Inventors: 于效宾
Original assignee: Weifang Weite Machinery Co ltd
Current assignee: Weifang Weite Machinery Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-07-05
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a reducing pipe with a protective shell, which comprises the protective shell and the reducing pipe, wherein the reducing pipe is arranged in the protective shell and comprises a large head and a small head, the large head and the small head of the reducing pipe are respectively positioned at the left end and the right end of the protective shell, a supporting and protecting sleeve is arranged between the large head and the small head, the supporting and protecting sleeve and the outer wall of the reducing pipe are mutually attached, a cavity is formed between the reducing pipe and the protective shell, the cavity is a closed space, a compression-resistant material is filled in the cavity, and the whole cavity is filled with the compression-resistant material. The utility model has simple structure, and can help the reducing pipe to enhance the capacity of resisting pressure increase by helping the outside of the protective shell, the supporting protective sleeve and the compression-resistant material, and meanwhile, the first drainage disk is arranged inside to buffer the flow velocity to reduce the pressure inside, thereby minimizing the damage of the reducing pipe.

Description

Reducing pipe with protective shell

Technical Field

The utility model relates to the field of reducing pipes, in particular to a reducing pipe with a protective shell.

Background

The reducing pipe is also called as reducer, which is one of chemical pipe fittings and is used for connecting two different pipe diameters. The reducing pipe is a pipe fitting used at the reducing position of the pipeline, the commonly adopted forming process is reducing pressing, expanding pressing or reducing and expanding pressing, and the reducing pipe with certain specifications can also be formed by punching.

When the existing reducing pipe is connected with a pipeline with large difference in size, the large-diameter pipeline is in the process of flowing to the small-diameter pipeline, the cross section area is reduced, the flow rate of liquid in the pipeline can be rapidly increased, when the specification difference between the large-diameter pipeline and the small-diameter pipeline is large, the flow rate of the liquid is rapidly increased due to the cross section difference, extrusion collision is caused to the pipe wall of the small-diameter pipeline, the small-diameter pipeline is extremely easy to damage, and meanwhile, a connecting piece between the large-diameter pipeline and the small-diameter pipeline can be damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a reducing pipe with a protective shell.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a reducing pipe with protective housing, includes protective housing and reducing pipe, protective housing's inside is provided with the reducing pipe, the reducing pipe includes major part and microcephaly, the major part and the microcephaly of reducing pipe are located protective housing's left end and right-hand member respectively, be provided with the support lag between major part and the microcephaly, support and laminate each other between the outer wall of lag and reducing pipe, form the cavity between reducing pipe and the protective housing, the cavity is airtight space, the cavity intussuseption is filled with the resistance to compression material, the resistance to compression material is full of whole cavity.

Preferably, the two ends of the reducing pipe are respectively folded into a large-end flange plate and a small-end flange plate through integral stamping, a plurality of first mounting holes and a plurality of second mounting holes are formed in the large-end flange plate, each distance between the circle center of each second mounting hole and the circle center of the large-end flange plate is larger than the distance between the circle center of each first mounting hole and the circle center of the large-end flange plate, and a plurality of third mounting holes are formed in the small-end flange plate.

Preferably, a plurality of fourth mounting holes are formed in the left end face of the protective shell, and each fourth mounting hole corresponds to a second mounting hole in the large-head flange one to one.

Preferably, the fourth mounting hole on the left end face of each protection shell is fixedly connected with the second mounting hole on the corresponding large-head flange plate through a locking screw, and the right end of the protection shell is fixedly welded with the small-head flange plate.

Preferably, the upper end and the lower end of the protective shell are provided with filling holes, and each filling hole is internally provided with a filling plug.

Preferably, a first drainage plate is welded in the large-head flange plate, a plurality of first tapered holes are formed in the first drainage plate, the large aperture of each first tapered hole faces one end of the small-head flange plate, and the small aperture of each first tapered hole faces one end of the large-head flange plate.

Preferably, a second drainage plate is welded in the small-end flange, a plurality of second drainage holes are formed in the second drainage plate, the large aperture of each second drainage hole faces one end of the large-end flange, and the small aperture of each second drainage hole faces one end of the small-end flange.

The utility model has the following beneficial effects:

1. according to the utility model, the supporting and protecting sleeve is arranged at the position of the minimum caliber between the large head and the small head of the reducing pipe, and the pressure-resistant material is filled in the cavity between the protecting shell and the reducing pipe, so that the condition that the outer wall of the reducing pipe resists sudden internal pressurization can be enhanced, and the reducing pipe is protected more effectively.

2. According to the utility model, the first drainage disk is welded on the large end, and the liquid flow in the large-diameter pipe is buffered in advance through the aperture characteristic of the first conical hole on the first drainage disk, so that the pressure on the inner wall of the different-diameter pipe, which is formed by sudden increase of the liquid flow speed, is relieved.

In conclusion, the anti-pressure reducing device is simple in structure, the capacity of resisting pressure increase is enhanced by the aid of the protective shell, the supporting protective sleeve and the anti-pressure material, and meanwhile, the first drainage disc is arranged inside the anti-pressure reducing device and is used for buffering flow velocity to reduce the pressure inside the anti-pressure reducing device, so that damage to the anti-pressure reducing device can be minimized.

Drawings

Fig. 1 is a schematic structural diagram of a reducing pipe with a protective casing according to the present invention;

FIG. 2 is an enlarged view of a portion of a large end flange of a reducer having a protective housing in accordance with the present invention;

fig. 3 is a partially enlarged view of a small-end flange of a reducer with a protective housing according to the present invention.

In the figure: the structure comprises a protective shell 1, a reducing pipe 2, a large head 3, a small head 4, a supporting protective sleeve 5, a cavity 6, a compression-resistant material 7, a large head flange 8, a small head flange 9, a first mounting hole 10, a second mounting hole 11, a third mounting hole 12, a fourth mounting hole 13, a locking screw 14, a filling hole 15, a filling plug 16, a first drainage disc 17, a first conical hole 18, a second drainage disc 19 and a second conical hole 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a reducing pipe with a protective shell, including protective shell 1 and reducing pipe 2, the inside of protective shell 1 is provided with reducing pipe 2, reducing pipe 2 includes major part 3 and microcephaly 4, major part 3 and microcephaly 4 of reducing pipe 2 are located the left end and the right-hand member of protective shell 1 respectively, be provided with between major part 3 and the microcephaly 4 and support lag 5, support and laminate each other between lag 5 and the outer wall of reducing pipe 2, form cavity 6 between reducing pipe 2 and the protective shell 1, cavity 6 is airtight space, the intussuseption of cavity 6 is filled with resistance to compression material 7, resistance to compression material 7 is full of whole cavity 6.

Through the minimum bore department between major part 3 and the microcephaly 4 at reducing pipe 2 be provided with support lag 5, pack resistance to compression material 7 through the cavity 6 between protecting housing 1 and reducing pipe 2 simultaneously, can strengthen reducing pipe 2 outer wall and resist the situation of inside sudden pressure boost, more effectual protection reducing pipe 2.

The two ends of the reducing pipe 2 are all folded through integral stamping to form a large-end flange 8 and a small-end flange 9, the large-end flange 8 is provided with a plurality of first mounting holes 10 and a plurality of second mounting holes 11, the distance between the circle center of each second mounting hole 11 and the circle center of the large-end flange 8 is larger than the distance between the circle center of each first mounting hole 10 and the circle center of the large-end flange 8, the small-end flange 9 is provided with a plurality of third mounting holes 12, the left end face of the protective shell 1 is provided with a plurality of fourth mounting holes 13, each fourth mounting hole 13 corresponds to the second mounting hole 11 on the large-end flange 8 one by one, the fourth mounting hole 13 on the left end face of each protective shell 1 is fixedly connected with the second mounting hole 11 on the corresponding large-end flange 8 through a locking screw 14, the right end of the protective shell 1 is fixedly welded with the small-end flange 9, and the reducing pipe 2 is convenient to be installed in the protective shell 1.

The upper end and the lower end of the protective shell 1 are provided with filling holes 15, each filling hole 15 is internally provided with a filling plug 16, and the compression-resistant materials 7 can be conveniently filled through the filling holes 15.

First drainage dish 17 has been welded in the major part ring flange 8, has seted up a plurality of first bell mouth 18 on the first drainage dish 17, and the large aperture of every first bell mouth 18 all faces minor end ring flange 9 one end, and the minor bore of every first bell mouth 18 all faces major part ring flange 8 one end, and the liquid flow in the buffer tube in advance is cushioned through the aperture characteristics of first bell mouth 18 on the first drainage dish 17 to slow down the liquid velocity and suddenly increase and the pressure to 2 inner walls of reducing pipe that form.

The second drainage plate 19 is welded in the small-end flange plate 9, a plurality of second tapered holes 20 are formed in the second drainage plate 19, the large aperture of each second tapered hole 20 faces one end of the large-end flange plate 8, and the small aperture of each second tapered hole 20 faces one end of the small-end flange plate 9 and is used for recovering the flow rate of liquid in the pipe.

When the connecting piece is used, the large-end flange 8 and the small-end flange 9 are respectively connected with the large-diameter pipe and the small-diameter pipe, and then the filling hole 15 is filled with the required compression-resistant material 7, so that the strength of the connecting piece can be improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A reducing pipe with a protective shell comprises a protective shell (1) and a reducing pipe (2), and is characterized in that the reducing pipe (2) is arranged inside the protective shell (1), the reducing pipe (2) comprises a large head (3) and a small head (4), the large head (3) and the small head (4) of the reducing pipe (2) are respectively located at the left end and the right end of the protective shell (1), a supporting and protecting sleeve (5) is arranged between the large head (3) and the small head (4), the supporting and protecting sleeve (5) and the outer wall of the reducing pipe (2) are mutually attached, a cavity (6) is formed between the reducing pipe (2) and the protective shell (1), the cavity (6) is a closed space, a compression-resistant material (7) is filled in the cavity (6), and the whole cavity (6) is filled with the compression-resistant material (7);

the two ends of the reducing pipe (2) are integrally stamped and folded to form a large-end flange plate (8) and a small-end flange plate (9), the large-end flange plate (8) is provided with a plurality of first mounting holes (10) and second mounting holes (11), the distance between the circle center of each second mounting hole (11) and the circle center of the large-end flange plate (8) is larger than the distance between the circle center of each first mounting hole (10) and the circle center of the large-end flange plate (8), and the small-end flange plate (9) is provided with a plurality of third mounting holes (12);

a plurality of fourth mounting holes (13) are formed in the left end face of the protective shell (1), and each fourth mounting hole (13) corresponds to a second mounting hole (11) in the large-end flange plate (8) in a one-to-one mode;

a fourth mounting hole (13) on the left end face of each protective shell (1) is fixedly connected with a second mounting hole (11) on the corresponding large-head flange plate (8) through a locking screw (14), and the right end of each protective shell (1) is fixedly welded with the small-head flange plate (9);

the upper end and the lower end of the protective shell (1) are provided with filling holes (15), and each filling hole (15) is internally provided with a filling plug (16).

2. The reducer with a protective shell according to claim 1, wherein a first drainage disc (17) is welded in the large-end flange (8), the first drainage disc (17) is provided with a plurality of first tapered holes (18), a large diameter of each first tapered hole (18) faces one end of the small-end flange (9), and a small diameter of each first tapered hole (18) faces one end of the large-end flange (8).

3. The reducing pipe with the protective shell according to claim 1, wherein a second drainage disc (19) is welded in the small-head flange (9), a plurality of second drainage holes (20) are formed in the second drainage disc (19), a large hole diameter of each second drainage hole (20) faces one end of the large-head flange (8), and a small hole diameter of each second drainage hole (20) faces one end of the small-head flange (9).