Steel-plastic composite pressure pipe

Abstract

The utility model relates to the technical field of pressure pipelines, in particular to a steel-plastic composite pressure pipe which comprises an outer protective layer, a protective plate arranged on the outer side of the outer protective layer, an outer plastic layer fixed on the inner side of the outer protective layer, a steel belt fixed on the inner side of the outer plastic layer, and an inner plastic layer fixed on the inner side of the steel belt. A connecting pipe is fixed to one end of the outer protective layer, one end of the outer plastic layer, one end of the steel belt and one end of the inner plastic layer, a threaded sleeve is rotationally connected to the outer side of the connecting pipe, and a buffering mechanism is arranged between the protective plate and the outer protective layer. The situation that the steel-plastic composite pressure pipe is damaged is avoided, then the effect of absorbing and dispersing impact force is effectively achieved through the buffering mechanism, and therefore the risk that the pipe is damaged is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure pipeline technical field especially relates to a steel plastic composite pressure pipe. BACKGROUND

[0002] Steel plastic composite pressure pipe is a kind of inner and outer plastic, middle layer steel band, inner and outer plastic and steel have the hot melt adhesive layer of bonding, it is a kind of five-layer structure pipeline, because it has the rigidity of steel pipe, it is essentially a kind of rigid pipeline, it also has the excellent corrosion resistance of plastic and the health of water supply: steel plastic composite pressure pipe has been widely used in urban construction water supply, fire protection and industrial application pipeline field. Because the cost of this kind of pipe is low, and the performance is superior, it is growing into the main pipeline of urban construction application.

[0003] When using the above technology, it is found that the prior art has the following technical problems: the existing steel plastic composite pressure pipe is used in outdoor water supply and chemical industry, when the steel plastic composite pressure pipe is collided and extruded, the buffer structure is needed to protect the steel plastic composite pressure pipe at this time, so as to prevent the damage to the steel plastic composite pressure pipe, and when laying the steel plastic composite pressure pipe, two pressure pipes are usually connected together by electromagnetic induction welding, but this way has low connection efficiency, therefore, we design a steel plastic composite pressure pipe to provide another technical solution for the above technical problems. UTILITY MODEL CONTENTS

[0004] Therefore, it is necessary to provide a steel plastic composite pressure pipe for the above technical problems, which protects the steel plastic composite pressure pipe by the protection plate, avoids the damage to the steel plastic composite pressure pipe, and effectively absorbs and disperses the impact force by the buffer mechanism, thereby reducing the risk of pipe damage.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A steel plastic composite pressure pipe, comprising an outer protective layer, the outer side of the outer protective layer is provided with a protection plate, the inner side of the outer protective layer is fixed with an outer plastic layer, the inner side of the outer plastic layer is fixed with a steel band, the inner side of the steel band is fixed with an inner plastic layer, one end of the outer protective layer, the outer plastic layer, the steel band and the inner plastic layer is fixed with a connecting pipe, the outer side of the connecting pipe is rotatably connected with a threaded sleeve, the protection plate and the outer protective layer are provided with a buffer mechanism.

[0007] As a preferred embodiment of the steel plastic composite pressure pipe provided by the utility model, the buffer mechanism comprises a spring, a mounting slide, a guide rod and a spring, the top end and the bottom end of the inner part of the outer protective layer are both provided with a mounting groove, a plurality of mounting slides are slidably connected in the inner part of the mounting groove, and the top end of the mounting slide is slidably connected with the protection plate.

[0008] As a preferred implementation form of the steel-plastic composite pressure pipe provided by the utility model, the inner side of the mounting sliding seat is slidably connected with an elastic sheet, both ends of the inner side of the mounting sliding seat are fixed with guide rods, the outer side of the guide rod is slidably connected with the elastic sheet, the outer side of the guide rod is sleeved with a spring, the bottom end of the spring is fixed with the mounting sliding seat, and the top end of the spring is fixed with the elastic sheet.

[0009] As a preferred implementation form of the steel-plastic composite pressure pipe provided by the utility model, the two sides of the elastic sheet are clamped with the protective plate.

[0010] As a preferred implementation form of the steel-plastic composite pressure pipe provided by the utility model, the elastic sheet adopts spring steel.

[0011] As a preferred implementation form of the steel-plastic composite pressure pipe provided by the utility model, the right end of the connecting pipe is fixed with a sealing gasket.

[0012] It can be seen without doubt that the above technical scheme of the application can certainly solve the technical problems to be solved by the application.

[0013] Meanwhile, through the above technical scheme, the utility model at least has the following beneficial effects:

[0014] The steel-plastic composite pressure pipe provided by the utility model is characterized in that a plurality of mounting sliding seats are placed on the inner side of the mounting groove and are slid, the protective plate is clamped and limited with the elastic sheet, at the moment, when the steel-plastic composite pressure pipe is collided, the protective plate is extruded and slides towards the direction of the outer protective layer, at the moment, the protective plate drives the elastic sheet to extrude and contract the spring, so that the elasticity of the spring drives the elastic sheet to buffer, thereby effectively buffering or reducing the collision force.

[0015] The threaded sleeve is threadedly connected with another steel-plastic composite pressure pipe, thereby the connecting pipe drives another steel-plastic composite pressure pipe to be pressed and extruded, the sealing gasket improves the sealing property between the connections, and the convenience and practicality of the connection of the steel-plastic composite pressure pipe are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 Figure is the schematic diagram of the connection structure of the threaded sleeve and the connecting pipe of the utility model;

[0019] Figure 3 Figure is the schematic diagram of the structure between the outer protective layer and the protective plate of the utility model;

[0020] Figure 4 Figure is the schematic diagram of the buffer mechanism structure of the utility model.

[0021] In the figure: 1, protective plate; 2, outer protective layer; 3, threaded sleeve; 4, connecting pipe; 5, sealing gasket; 6, outer plastic layer; 7, steel belt; 8, inner plastic layer; 9, elastic sheet; 10, mounting slide; 11, guide rod; 12, spring; 13, mounting groove. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0023] In order to make the person in the art better understand the utility model scheme, the technical scheme in the utility model example will be described clearly and completely below in combination with the drawings.

[0024] It should be noted that the examples in the utility model and the features and technical schemes in the examples can be combined with each other without conflict.

[0025] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0026] The existing steel-plastic composite pressure pipe is used in outdoor water supply and chemical industry fields, when the steel-plastic composite pressure pipe is collided and extruded, the buffer structure is needed to protect the steel-plastic composite pressure pipe at this time, so as to prevent the damage to the steel-plastic composite pressure pipe, and the steel-plastic composite pressure pipe is mostly connected together by electromagnetic induction welding when laying, but the connection efficiency of this way is low,

[0027] Example one

[0028] Please refer to Figures 1-4The utility model provides a kind of steel plastic composite pressure pipe, including outer sheath 2, outer sheath 2 outside is provided with protective plate 1, the inside of outer sheath 2 is fixed with outer plastic layer 6, the inside of outer plastic layer 6 is fixed with steel band 7, the inside of steel band 7 is fixed with inner plastic layer 8, the one end of outer sheath 2, outer plastic layer 6, steel band 7 and inner plastic layer 8 is fixed with connecting pipe 4, the right end of connecting pipe 4 is fixed with sealing gasket 5, the outside of connecting pipe 4 is rotatably connected with threaded sleeve 3, and buffering mechanism is arranged between protective plate 1 and outer sheath 2.

[0029] In use, the steel band 7 in the middle layer of the steel plastic composite pressure pipe is formed by crimping and butt welding, which gives the pipe very high strength and pressure resistance. Since the steel band has high strength and rigidity, the pipeline can withstand large external pressure and internal fluid pressure, ensuring the stable operation of the pipeline system. When the outer side of the outer sheath 2 is subjected to impact and extrusion, the steel plastic composite pressure pipe is protected by the protective plate 1, preventing damage to the steel plastic composite pressure pipe. Then the buffering mechanism effectively absorbs and disperses the impact force, reducing the risk of pipeline damage.

[0030] Furthermore, when two steel plastic composite pressure pipes are connected, the threaded sleeve 3 is screwed with another steel plastic composite pressure pipe, and the connecting pipe 4 driven by the threaded sleeve 3 presses and extrudes the other steel plastic composite pressure pipe. The sealing gasket 5 improves the sealing between the connections, greatly improving the convenience and practicality of the steel plastic composite pressure pipe connection.

[0031] The buffering mechanism includes elastic pieces 9, mounting slides 10, guide rods 11 and springs 12. The top and bottom of the inner part of the outer sheath 2 are provided with mounting grooves 13. The mounting grooves 13 are slidably connected with a plurality of mounting slides 10. The top of the mounting slides 10 is slidably connected with the protective plate 1. The inner side of the mounting slides 10 is slidably connected with the elastic pieces 9. The two ends of the inner side of the mounting slides 10 are fixed with guide rods 11. The outer side of the guide rods 11 is slidably connected with the elastic pieces 9. The outer side of the guide rods 11 is sleeved with springs 12. The bottom of the springs 12 is fixed with the mounting slides 10. The top of the springs 12 is fixed with the elastic pieces 9. The two sides of the elastic pieces 9 are clamped with the protective plate 1. The elastic pieces 9 are made of spring steel.

[0032] Specifically, the mounting slides 10 are placed on the inner side of the mounting grooves 13 and slide. The protective plate 1 is clamped and limited with the elastic pieces 9. When the steel plastic composite pressure pipe is impacted, the protective plate 1 is extruded and slides towards the outer sheath 2. The protective plate 1 drives the elastic pieces 9 to extrude and contract the springs 12, so that the elasticity of the springs 12 drives the elastic pieces 9 to buffer, effectively buffering or reducing the impact force.

[0033] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A steel-plastic composite pressure pipe, characterized by, The utility model provides an outer protective layer (2) is provided with the protective board (1) on the outside, the inner side of outer protective layer (2) is fixed with the outer plastic layer (6), the inner side of outer plastic layer (6) is fixed with the steel band (7), the inner side of steel band (7) is fixed with the inner plastic layer (8), one end of outer protective layer (2), outer plastic layer (6), steel band (7) and inner plastic layer (8) is fixed with the connecting pipe (4), the outside of connecting pipe (4) is rotatably connected with the threaded sleeve (3), and the protective board (1) is provided with the buffer mechanism between outer protective layer (2).

2. A steel-plastic composite pressure pipe according to claim 1, wherein The buffer mechanism includes elastic sheet (9), mounting slide (10), guide rod (11) and spring (12), the top end and the bottom end in the outer protective layer (2) are all set up with the installation groove (13), the inside of installation groove (13) is slidably connected with a plurality of mounting slides (10), the top end of mounting slide (10) is slidably connected with protective board (1).

3. A steel-plastic composite pressure pipe according to claim 2, wherein The inner side of mounting slide (10) is slidably connected with elastic sheet (9), both ends of mounting slide (10) are fixed with guide rod (11), the outer side of guide rod (11) is slidably connected with elastic sheet (9), the outer side of guide rod (11) is sleeved with spring (12), the bottom of spring (12) is fixed with mounting slide (10), and the top of spring (12) is fixed with elastic sheet (9).

4. The steel-plastic composite pressure pipe according to claim 2, wherein The both sides of elastic sheet (9) are clamped with protective board (1).

5. The steel-plastic composite pressure pipe according to claim 3, wherein The spring steel is used in elastic sheet (9).

6. A steel-plastic composite pressure pipe according to claim 1, wherein The right end of connecting pipe (4) is fixed with sealing gasket (5).

Images