CN210614892U

CN210614892U - Steel-plastic composite pipe end expanding device

Info

Publication number: CN210614892U
Application number: CN201921624778.4U
Authority: CN
Inventors: 刘润祥
Original assignee: Tianjin Xinzehao Steel Plastic Composite Pipe Co Ltd
Current assignee: Tianjin Xinzehao Steel Plastic Composite Pipe Co Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-05-26
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a compound pipe end portion expanding unit is moulded to steel, including one can aerify expanded sack and four supporting legs, there is curved board of placing outward on the top of four supporting legs through screw fixed mounting, the one side of placing the board outward is provided with the gas station, the gas station is by the air cock, mount pad and air pump are constituteed, the one end middle part of mount pad is equipped with the positioning disk, the central point at the positioning disk is fixed to the air cock, and outwards outstanding, through pipe connection between air pump and the air cock, and be provided with the valve on the pipe, the both sides of placing the board outward are all fixed and are equipped with first fixed plate, four edges on the top of two first fixed plates all fix and are equipped with the bracing piece, the top of four bracing pieces is. The utility model discloses make the sack inseparabler with the contact of compound pipe is moulded to steel, reduced the possibility of compound pipe's expansion department unevenness is moulded to steel, be convenient for place or change compound pipe is moulded to steel, improved the efficiency that compound pipe tip expanded is moulded to steel.

Description

Steel-plastic composite pipe end expanding device

Technical Field

The utility model relates to an expansion device specifically is a compound pipe end portion expansion device is moulded to steel.

Background

The steel-plastic composite pipe is produced with seamless steel pipe and welded steel pipe as base pipe and has inner wall coated with polyethylene powder paint or epoxy resin paint with high adhesion, high corrosion resistance and food level hygiene. The water-supplying galvanized internal plastic-coated composite steel pipe is an upgraded product of the traditional galvanized pipe and is generally connected by screw threads.

When the end of the steel-plastic composite pipe is expanded, the existing steel-plastic composite pipe end expanding device can cause the unevenness of the expanded part of the steel-plastic composite pipe when being expanded, and is not convenient for placing or replacing the steel-plastic composite pipe, thereby influencing the efficiency of the expansion of the end of the steel-plastic composite pipe. Therefore, we improve the above and provide an end expanding device of steel-plastic composite pipe.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a steel-plastic composite pipe end expanding device, which comprises a cloth bag capable of being expanded by inflation and four supporting legs, wherein the top ends of the four supporting legs are fixedly provided with an arc-shaped outer placing plate through screws, one side of the outer placing plate is provided with an air station, the air station consists of an air nozzle, a mounting seat and an air pump, the middle part of one end of the mounting seat is provided with a positioning disk, the air nozzle is fixed at the central position of the positioning disk and protrudes outwards, the air pump is connected with the air nozzle through a conduit, a valve is arranged on the conduit, the two sides of the outer placing plate are respectively and fixedly provided with a first fixing plate, the four corners at the top end of the first fixing plate are respectively and fixedly provided with a supporting rod, the top ends of the four supporting rods are respectively and fixedly provided with a same top plate, the middle part at the bottom end, the inner wall of apron and outer board of placing all fixedly is equipped with interior place board, the venthole has all been seted up with the one end that the inner wall of apron is close to the gas station to interior place board, the apron all has seted up the inlet port with the opposite side of placing the board outward, the inlet port passes through pipe connection an air compressor's gas outlet, two the opposite side of interior place board is equipped with and is used for the terminal tie-up board in top of sack.

As a preferred technical scheme of the utility model, place the fixed circular shape connecting plate that is equipped with of inboard place inboard chamber one end of inboard chamber outward, a screw hole has been seted up at the middle part of connecting plate, the inner chamber of screw hole is equipped with a flexible post.

As an optimal technical scheme of the utility model, the one end of flexible post and the middle part fixed connection of the tight board in top, the fixed runner that is equipped with of the other end of flexible post.

As a preferred technical scheme of the utility model, the one end that flexible post is close to the runner is equipped with the threaded rod that matches with the screw hole, just the diameter of threaded rod is greater than the diameter of flexible post.

As a preferred technical scheme of the utility model, the both sides of apron are all fixed and are equipped with the second fixed plate, four the bracing piece respectively with two four edges department through connection of second fixed plate.

As an optimized technical proposal of the utility model, the length of the telescopic column is equal to the length of the inner placing plate.

The utility model has the advantages that:

1. this kind of compound pipe end portion expanding unit is moulded to steel, through the mutually supporting use of connecting plate, top tight board, flexible post and runner etc., will stretch out and draw back the post promotion, until threaded rod and the screw hole screw-thread engagement on the flexible post, rotate the runner, threaded rod and screw hole meshing, until runner and connecting plate in close contact with, top tight board is flat to the one end top of sack, makes the sack mould the contact of compound pipe with the steel inseparabler, has reduced the possibility of the expansion department unevenness of compound pipe is moulded to steel.

2. This kind of compound pipe end portion expanding unit is moulded to steel, through the apron, mutually supporting of bracing piece and pneumatic cylinder etc. is used, the output shaft shrink of pneumatic cylinder, make the output shaft of pneumatic cylinder drive the apron along bracing piece upward movement, make the apron with place the board separation outward, mould compound pipe with the steel and take out from the cavity of placing board and apron constitution outward, change the compound pipe of next steel and mould, the output shaft of pneumatic cylinder promotes the apron downward movement, make the apron with place the board cooperation outward, be convenient for place or change compound pipe is moulded to steel, the compound pipe end portion expanded efficiency is moulded to steel has been improved.

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 expanding device for the end of the steel-plastic composite pipe of the present invention.

In the figure: 1. supporting legs; 2. a first fixing plate; 3. placing the plate outside; 4. an inner placing plate; 5. a gas station; 501. an air tap; 5011. positioning a plate; 502. a mounting seat; 503. an air pump; 6. a support bar; 7. a top plate; 8. a second fixing plate; 9. a hydraulic cylinder; 10. a cover plate; 11. an air inlet; 12. a cloth bag; 13. an air outlet; 14. a connecting plate; 15. a telescopic column; 16. a rotating wheel; 17. and (6) tightly pressing the plate.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figure 1, the utility model relates to a steel-plastic composite pipe end expanding device, which comprises a cloth bag 12 capable of being expanded by inflation and four supporting legs 1, wherein the top ends of the four supporting legs 1 are fixedly provided with an arc-shaped outer placing plate 3 through screws, one side of the outer placing plate 3 is provided with an air station 5, the air station 5 consists of an air nozzle 501, an installation seat 502 and an air pump 503, the middle part of one end of the installation seat 502 is provided with a positioning plate 5011, the air nozzle 501 is fixed at the central position of the positioning plate 5011 and protrudes outwards, the air pump 503 is connected with the air nozzle 501 through a conduit, the conduit is provided with a valve, the two sides of the outer placing plate 3 are both fixedly provided with first fixing plates 2, the four corners at the top ends of the two first fixing plates 2 are both fixedly provided with supporting rods 6, the top ends of the four supporting rods 6 are fixed with a same top plate 7, the bottom middle part, a control valve is arranged on a hydraulic oil pipe 9, the hydraulic cylinder 9 is preferably an HSG250-200 type hydraulic cylinder, an output shaft of the hydraulic cylinder 9 is fixedly provided with a cover plate 10 which can lift up and down, inner placing plates 4 are fixedly arranged on the inner walls of the cover plate 10 and the outer placing plate 3, one ends of the inner placing plates 4 and the inner walls of the cover plate 10, which are close to the gas station 5, are respectively provided with a gas outlet 13, the opposite sides of the cover plate 10 and the outer placing plate 3 are respectively provided with a gas inlet 11, the gas inlet 11 is connected with a gas outlet of an air compressor through a conduit, the air compressor is preferably an M358499 type air compressor, the opposite sides of the two inner placing plates 4 are provided with a tightening plate 17 for flattening the tail end of a cloth bag 12, the cloth bag 12 is composed of outer, and the outer layer cloth is matched, so that the cloth bag 12 can be quickly wilted after being deflated, and the next steel-plastic composite pipe can be conveniently used when being expanded.

Wherein, the fixed circular shape connecting plate 14 that is equipped with of 4 inner chamber one ends of placing the board in 3 inner chambers of outer placing plate, a screw hole has been seted up at the middle part of connecting plate 14, and the inner chamber of screw hole is equipped with a flexible post 15, and the setting up of flexible post 15 and screw hole can make the flexible post 15 quick pass from the screw hole and make the tight board 17 in top tightly to the sack 12 that is full of gas.

Wherein, the middle part fixed connection of the one end of flexible post 15 and top pinch plate 17, the other end of flexible post 15 is fixed and is equipped with runner 16, and the setting of runner 16 is convenient for rotate flexible post 15.

Wherein, the one end that flexible post 15 is close to runner 16 is equipped with the threaded rod that matches with the screw hole, and the diameter of threaded rod is greater than flexible post 15's diameter, and the setting up of threaded rod can make flexible post 15 and connecting plate 14 connection stability higher, avoids artificial tight flexible post 15 in top for a long time.

Wherein, the both sides of apron 10 are all fixed to be equipped with second fixed plate 8, four bracing pieces 6 respectively with four edges and corners through connection of two second fixed plates 8 set up and can make apron 10 up-and-down motion more stable.

Wherein, the length of the telescopic column 15 is equal to that of the inner placing plate 4, after the threaded rod is meshed with the threaded hole and the rotating wheel 16 is contacted with the connecting plate 14, the tightening plate 17 is just positioned at the other end of the inner placing plate 4 and is flattened against one end of the cloth bag 12.

When the device works, firstly, the steel-plastic composite pipe is placed in the inner cavity of the heating box for heating treatment, the steel-plastic composite pipe is taken out and then placed in the inner placing plate 4 of the inner cavity of the outer placing plate 3, one end of the steel-plastic composite pipe is sleeved on the outer surface of one end of the cloth bag 12, the air pump 503 is opened, the air pump 503 is an electric air pump, the air pump 503 takes electric power as power, air is continuously compressed through the electric power to generate air pressure, the air is sprayed out from the air nozzle 501 through a conduit and enters the inner cavity of the cloth bag 12 to inflate the cloth bag 12, the inflated cloth bag 12 expands one end of the steel-plastic composite pipe outwards, the telescopic column 15 is pushed simultaneously until a threaded rod on the telescopic column 15 is meshed with a threaded hole, the rotating wheel 16 is rotated to be meshed with the threaded hole until the rotating wheel 16 is tightly contacted with the connecting plate 14, the tightening plate 17 flattens one end of the cloth bag 12, and expands one end, closing the air pump 503, opening the air compressor, allowing the cool air generated by the air compressor to enter the gap layer inside the outer placing plate 3 and the cover plate 10 from the air inlet 11 through the guide pipe and to come out from the plurality of air outlet holes 13, performing uniform cooling treatment on the sized steel-plastic composite pipe, after the cooling treatment is completed, contracting the output shaft of the hydraulic cylinder 9, allowing the output shaft of the hydraulic cylinder 9 to drive the cover plate 10 to move upwards along the support rod 6, allowing the cover plate 10 to be separated from the outer placing plate 3, taking out the steel-plastic composite pipe from the cavity formed by the outer placing plate 3 and the cover plate 10, replacing the next steel-plastic composite pipe, and allowing the output shaft of the hydraulic cylinder 9 to push the cover plate 10 to move downwards, so that the cover plate 10 is matched with the.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

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. The utility model provides a steel-plastic composite pipe end expanding device, includes a sack (12) and four supporting legs (1) that can aerify the expansion, its characterized in that, four there is curved board (3) of placing outward on the top of supporting leg (1) through screw fixed mounting, the one side of placing board (3) outward is provided with gas station (5), gas station (5) comprises air cock (501), mount pad (502) and air pump (503), the one end middle part of mount pad (502) is equipped with positioning disk (5011), air cock (501) are fixed at the central point of positioning disk (5011) and are outwards outstanding, pass through pipe connection between air pump (503) and air cock (501), and are provided with the valve on the pipe, the both sides of placing board (3) outward all are fixed and are equipped with first fixed plate (2), two four edges on the top of first fixed plate (2) all are fixed and are equipped with bracing piece (6), four the top of bracing piece (6) is fixed and is equipped with same roof (7), the fixed pneumatic cylinder (9) that is equipped with in bottom middle part of roof (7), apron (10) of oscilaltion is fixed to the output shaft of pneumatic cylinder (9), apron (10) and the inner wall of placing board (3) outward all fixed and are equipped with interior place board (4), venthole (13) have all been seted up to the one end that the inner wall of interior place board (4) and apron (10) is close to gas station (5), inlet port (11) have all been seted up with the looks dorsal part of placing board (3) outward to apron (10), inlet port (11) are through the gas outlet of a pipe connection air compressor, two the opposite side of interior place board (4) is equipped with and is used for terminal holding plate (17) of sack (12).

2. The end expanding device of the steel-plastic composite pipe is characterized in that a circular connecting plate (14) is fixedly arranged at one end of the inner cavity of the inner placing plate (4) of the inner cavity of the outer placing plate (3), a threaded hole is formed in the middle of the connecting plate (14), and a telescopic column (15) is arranged in the inner cavity of the threaded hole.

3. The end expanding device of the steel-plastic composite pipe is characterized in that one end of the telescopic column (15) is fixedly connected with the middle part of the tightening plate (17), and the other end of the telescopic column (15) is fixedly provided with a rotating wheel (16).

4. The end expanding device of the steel-plastic composite pipe, as recited in claim 3, characterized in that the end of the telescopic column (15) close to the rotating wheel (16) is provided with a threaded rod matching with the threaded hole, and the diameter of the threaded rod is larger than that of the telescopic column (15).

5. The end expanding device of steel-plastic composite pipe according to claim 1, wherein two sides of the cover plate (10) are respectively fixed with a second fixing plate (8), and four support rods (6) are respectively connected with four corners of the two second fixing plates (8) in a penetrating manner.

6. A steel-plastic composite pipe end expansion device according to claim 4, characterized in that the length of the telescopic column (15) is equal to the length of the inner placement plate (4).