CN212691191U

CN212691191U - Major diameter high strength spiral welded pipe

Info

Publication number: CN212691191U
Application number: CN202020641442.5U
Authority: CN
Inventors: 曲兆丰
Original assignee: TIANJIN BAOFENG STEEL PIPE PLANT
Current assignee: TIANJIN BAOFENG STEEL PIPE PLANT
Priority date: 2020-04-25
Filing date: 2020-04-25
Publication date: 2021-03-12
Anticipated expiration: 2030-04-25

Abstract

The utility model provides a major diameter high strength spiral welded pipe. Major diameter high strength spiral welded pipe includes the body, the pipe box, first buffer gear and second buffer gear, fixed cylinder fixed mounting is on the inside wall of pipe box, piston sliding connection is on the inside wall of fixed cylinder, depression bar sliding connection is at the top of fixed cylinder, the outside one end fixed mounting of fixed cylinder has the clamp plate is arranged in to the depression bar, first spring fixed mounting is between the bottom of the interior diapire of fixed cylinder and piston, the one end of water pipe and the lateral wall fixed connection of body, the other end and the fixed cylinder of body are close to the lateral wall fixed connection of bottom, sliding sleeve fixed mounting is on the inside wall of body, slide bar sliding connection is in the inside of sliding sleeve, the second spring concatenates on the pole wall of slide bar. The utility model provides a major diameter high strength spiral welded pipe has can all cushion the spiral intraductal outside, prevents that the pipeline from shaking the advantage that the damage appears for a long time.

Description

Major diameter high strength spiral welded pipe

Technical Field

The utility model relates to the technical field of pipelines, especially, relate to a major diameter high strength spiral welded pipe.

Background

The spiral welded pipe is made up by rolling the steel band of low-carbon or low-alloy structural steel into pipe blank according to a certain spiral angle (called forming angle) and seam-welding the pipe blank.

The spiral pipeline is generally buried underground for conveying tap water or oil and the like, and the phenomenon of pipeline vibration can occur due to excessive pressure in the pipeline during use, and if the phenomenon is long-term, the pipeline can be seriously damaged.

Therefore, it is necessary to provide a large-diameter high-strength spiral welded pipe to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a can all cushion the outside in the spiral pipe, prevent that the major diameter high strength spiral welded tube that the damage appears in the long-term vibrations of pipeline.

In order to solve the technical problem, the utility model provides a major diameter high strength spiral welded pipe includes: a pipe body; the pipe sleeve is sleeved outside the pipe body through a first buffer mechanism, the first buffer mechanism comprises a fixed cylinder, a pressure rod, a pressure plate, a piston, a first spring and a water pipe, the fixed cylinder is fixedly installed on the inner side wall of the pipe sleeve, the piston is connected to the inner side wall of the fixed cylinder in a sliding mode, the pressure rod is connected to the top of the fixed cylinder in a sliding mode, one end, arranged inside the fixed cylinder, of the pressure rod is fixedly connected with the top of the piston, the pressure plate is fixedly installed at one end, arranged outside the fixed cylinder, of the pressure rod, the pressure plate abuts against the outer wall of the pipe body, the first spring is fixedly installed between the inner bottom wall of the fixed cylinder and the bottom of the piston, one end of the water pipe is fixedly connected with the side wall of the pipe body, and the other end of; the second buffer mechanism comprises a sliding sleeve, a sliding rod, a supporting rod and a second spring, the sliding sleeve is fixedly installed on the inner side wall of the pipe body, the sliding rod is connected inside the sliding sleeve in a sliding mode, the supporting rod is fixedly connected with one end, far away from the sliding sleeve, of the sliding rod, and the second spring is connected to the rod wall of the sliding rod in series.

Preferably, the pipe body comprises a stainless steel layer and a 3PE heat-shrinkable layer, the side walls of two ends of the stainless steel layer are coated with the 3PE heat-shrinkable layer, and the 3PE heat-shrinkable layer has a high anti-corrosion function and can prolong the service life of the pipe body.

Preferably, the outer side wall of the pipe body is provided with a pressing groove matched with the pressing plate, the pressing plate is clamped in the pressing groove, and the side wall of the pressing plate opposite to the pressing groove is provided with anti-skid grains matched with each other, so that the pressing plate is prevented from being separated from the pipe body.

Preferably, a sealing sleeve is fixedly mounted at the joint of the water pipe and the pipe body, so that the sealing performance of the water pipe and the pipe body is improved, and the water leakage of the pipe body is prevented.

Preferably, both ends of the supporting rod are in a conical structure, so that liquid in the pipe body can flow conveniently.

Preferably, one end of the second spring is fixedly connected with the side wall of the sliding sleeve, and the other end of the second spring is fixedly connected with one end of the sliding rod close to the supporting rod, so that the second spring is prevented from moving.

Compared with the prior art, the utility model provides a major diameter high strength spiral welded pipe has following beneficial effect:

the utility model provides a major diameter high strength spiral welded pipe buries the body together with the pipe box in the underground, when the pipe box when the shock appears in conveying liquid, can realize the buffering in the outside of body through first buffer gear, and second buffer gear can cushion the inside of body to carry out dual buffering, prevent that the pipeline from shaking for a long time and appearing damaging.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of a large-diameter high-strength spiral welded pipe provided by the present invention;

FIG. 2 is a schematic view of the internal structure of the tube shown in FIG. 1;

FIG. 3 is a schematic view of the internal structure of the fixed cylinder shown in FIG. 1;

fig. 4 is a schematic cross-sectional view of the tube shown in fig. 1.

Reference numbers in the figures: 1. the device comprises a pipe body, 11, a stainless steel layer, 12, 3PE heat-shrinkable layers, 2, a pipe sleeve, 3, a first buffer mechanism, 31, a fixed cylinder, 32, a pressure rod, 33, a pressure plate, 34, a piston, 35, a first spring, 36, a water pipe, 4, a second buffer mechanism, 41, a sliding sleeve, 42, a sliding rod, 43, a support rod, 44, a second spring, 5, a sealing sleeve, 6 and a pressing groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a large-diameter high-strength spiral welded pipe according to the present invention; FIG. 2 is a schematic view of the internal structure of the tube shown in FIG. 1; FIG. 3 is a schematic view of the internal structure of the fixed cylinder shown in FIG. 1; fig. 4 is a schematic cross-sectional view of the tube shown in fig. 1. The major diameter high strength spiral weld pipe includes: the pipe comprises a pipe body 1, a pipe sleeve 2, a first buffer mechanism 3 and a second buffer mechanism 4.

In a specific implementation process, as shown in fig. 1 and 2, the first buffer mechanism 3 includes a fixed cylinder 31, a pressure rod 32, a pressure plate 33, a piston 34, a first spring 35 and a water pipe 36, the fixed cylinder 31 is fixedly installed on the inner side wall of the pipe sleeve 2, the piston 34 is slidably connected on the inner side wall of the fixed cylinder 31, the pressure rod 32 is slidably connected on the top of the fixed cylinder 31, one end of the pressure rod 32, which is placed inside the fixed cylinder 31, is fixedly connected with the top of the piston 34, one end of the pressure rod 32, which is placed outside the fixed cylinder 31, is fixedly installed with the pressure plate 33, the pressure plate 33 abuts against the outer wall of the pipe body 1, the first spring 35 is fixedly installed between the inner bottom wall of the fixed cylinder 31 and the bottom of the piston 34, one end of the water pipe 36 is fixedly connected with the side wall of the pipe.

The lateral wall of the pipe body 1 is provided with a pressing groove 6 matched with the pressing plate 33, the pressing plate 33 is clamped inside the pressing groove 6, and the lateral wall of the pressing plate 33 opposite to the pressing groove 6 is provided with anti-slip lines matched with each other.

The sealing sleeve 5 is fixedly arranged at the joint of the water pipe 36 and the pipe body 1.

It should be noted that: because the fixed cylinder 31 is connected with the pipe body through the water pipe 36, so the inside of the fixed cylinder 31 can be filled with the liquid inside the pipe body 1, the sealing sleeve 5 can improve the sealing performance of the water pipe 36 and the pipe body 1, water leakage of the pipe body 1 is prevented, when the pipe body 1 shakes, the pressing rod 32 can be extruded to the inside of the fixed cylinder 31 back and forth through the pressing plate 33, the pressing rod 32 can drive the piston 34 to move back and forth to extrude the liquid inside the fixed cylinder 31, and the liquid inside the fixed cylinder 31 can be extruded back to the inside of the pipe body 1, but the liquid inside the pipe body 1 can be greatly pressurized into the inside of the fixed cylinder 31 again, so that the piston 34 and the pressing rod 32 can be greatly buffered when moving back and forth, the first spring 35 can further play a buffering effect on the piston 34 and the pressing rod 32, and the pipe body 1 cannot collide with soil or a pipe sleeve.

Referring to fig. 1 and 2, the second buffer mechanism 4 includes a sliding sleeve 41, a sliding rod 42, a supporting rod 43 and a second spring 44, the sliding sleeve 41 is fixedly installed on the inner side wall of the tube body 1, the sliding rod 42 is slidably connected inside the sliding sleeve 41, the supporting rod 43 is fixedly connected with one end of the sliding rod 42 far away from the sliding sleeve 41, and the second spring 44 is connected in series to the rod wall of the sliding rod 42.

The support rod 43 has a tapered structure at both ends.

One end of the second spring 44 is fixedly connected with the side wall of the sliding sleeve 41, and the other end of the second spring 44 is fixedly connected with one end of the sliding rod 42 close to the supporting rod 43.

It should be noted that: can receive the influence body 1 of pressure when body 1 carries liquid for a long time and inwards appear contracting sunken phenomenon, the inner wall of body 1 just can drive sliding sleeve 41 slow removal on slide bar 42 this moment, sliding sleeve 41 then can extrude second spring 44 and make its constantly contract and stretch and drive sliding sleeve 41 round trip movement buffering, thereby make body 1 inner wall can obtain the buffering when deformation, rigid deformation can not appear and reduce the impaired degree of body 1, and both ends are the resistance that the bracing piece 43 of toper structure can reduce liquid and are convenient for the inside liquid flow of body 1.

Referring to fig. 4, the pipe body 1 includes a stainless steel layer 11 and a 3PE heat-shrinkable layer 12, the side walls of both ends of the stainless steel layer 11 are coated with the 3PE heat-shrinkable layer 12, and the 3PE heat-shrinkable layer 12 has high corrosion resistance, so that the corrosion rate of the pipe body can be reduced, and the service life of the pipe body can be prolonged.

The utility model provides a major diameter high strength spiral welded pipe's theory of operation as follows:

the pipe body 1 is buried underground together with the pipe sleeve 2, the fixed cylinder 31 is connected with the pipe body through the water pipe 36, so that the inside of the fixed cylinder 31 can be filled with liquid inside the pipe body 1, the sealing sleeve 5 can improve the sealing performance of the water pipe 36 and the pipe body 1 and prevent the water leakage of the pipe body 1, when the pipe body 1 vibrates during liquid transmission, the pressure rod 32 can be extruded back and forth towards the inside of the fixed cylinder 31 through the pressure plate 33, the pressure rod 32 can drive the piston 34 to move back and forth to extrude the liquid inside the fixed cylinder 31 and extrude the liquid inside the fixed cylinder 31 back to the inside of the pipe body 1, but the liquid pressure inside the pipe body 1 is higher and can be filled into the inside of the fixed cylinder 31 again, so that a great buffer effect is achieved when the piston 34 and the pressure rod 32 move back and forth, the first spring 35 can further play a buffer effect on the piston 34 and the pressure rod 32, so that the pipe body 1 cannot collide with, and can receive the influence body 1 of pressure when body 1 carries liquid for a long time and inwards appear contracting sunken phenomenon, the inner wall of body 1 just can drive sliding sleeve 41 slow removal on slide bar 42 this moment, sliding sleeve 41 then can extrude second spring 44 and make its constantly contract and stretch and drive sliding sleeve 41 round trip movement buffering, thereby make body 1 inner wall can obtain the buffering when deformation, rigid deformation can not appear and reduce the impaired degree of body 1, and the both ends are the resistance that the bracing piece 43 of toper structure can reduce liquid and are convenient for the inside liquid flow of body 1, thereby can all cushion the spiral tube inside and outside, prevent that the pipeline from shaking for a long time and appearing damaging.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A major diameter high strength spiral weld pipe, its characterized in that includes:

a pipe body (1);

the pipe sleeve (2) is sleeved outside the pipe body (1) through a first buffer mechanism (3), the first buffer mechanism (3) comprises a fixed cylinder (31), a pressure rod (32), a pressure plate (33), a piston (34), a first spring (35) and a water pipe (36), the fixed cylinder (31) is fixedly installed on the inner side wall of the pipe sleeve (2), the piston (34) is connected to the inner side wall of the fixed cylinder (31) in a sliding mode, the pressure rod (32) is connected to the top of the fixed cylinder (31) in a sliding mode, one end, arranged inside the fixed cylinder (31), of the pressure rod (32) is fixedly connected with the top of the piston (34), the pressure plate (33) is fixedly installed at one end, arranged outside the fixed cylinder (31), of the pressure rod (32), the pressure plate (33) abuts against the outer wall of the pipe body (1), and the first spring (35) is fixedly installed between the inner bottom wall of the fixed cylinder (31) and the bottom of the piston (34), one end of the water pipe (36) is fixedly connected with the side wall of the pipe body (1), and the other end of the pipe body (1) is fixedly connected with the side wall, close to the bottom, of the fixed cylinder (31);

second buffer gear (4), second buffer gear (4) are including sliding sleeve (41), slide bar (42), bracing piece (43) and second spring (44), sliding sleeve (41) fixed mounting is on the inside wall of body (1), slide bar (42) sliding connection is in the inside of sliding sleeve (41), the one end fixed connection of sliding sleeve (41) is kept away from with slide bar (42) in bracing piece (43), second spring (44) concatenate on the pole wall of slide bar (42).

2. The large-diameter high-strength spiral welded pipe according to claim 1, wherein the pipe body (1) comprises a stainless steel layer (11) and a 3PE heat-shrinkable layer (12), and the two side walls of the stainless steel layer (11) are coated with the 3PE heat-shrinkable layer (12).

3. The large-diameter high-strength spiral welded pipe according to claim 1, wherein a pressure groove (6) matched with the pressure plate (33) is formed in the outer side wall of the pipe body (1), the pressure plate (33) is clamped in the pressure groove (6), and anti-slip patterns matched with each other are formed in the side wall of the pressure plate (33) opposite to the pressure groove (6).

4. The large-diameter high-strength spiral welded pipe according to claim 1, wherein a sealing sleeve (5) is fixedly mounted at the joint of the water pipe (36) and the pipe body (1).

5. The large-diameter high-strength spiral welded pipe according to claim 1, wherein both ends of the support rod (43) are tapered.

6. The large-diameter high-strength spiral welded pipe according to claim 1, wherein one end of the second spring (44) is fixedly connected with the side wall of the sliding sleeve (41), and the other end of the second spring (44) is fixedly connected with one end of the sliding rod (42) close to the supporting rod (43).