Galvanized steel guide pipe resistant to corrosion and high temperature

Abstract

The utility model discloses a corrosion high temperature resistant galvanized steel conduit relates to steel conduit technical field, including two protection subassembly, protection subassembly includes the steel pipe that serves as the main part, the inside wall of steel pipe is fixedly connected with the insulating layer, the side wall of steel pipe far away from insulating layer is fixedly sleeved with the galvanization layer, the side wall of steel pipe far away from insulating layer is fixed with the galvanization layer. The side wall of the side, away from the steel pipe, of the galvanized layer is fixedly sleeved with a waterproof layer, and the side wall of the side, away from the galvanized layer, of the waterproof layer is fixedly sleeved with an outer protective layer. By means of the design of multiple protective layers, a rapid inserting and fixing mechanism and automatic linear positioning, the durability, the installation efficiency and the construction precision of the steel guide pipe are remarkably improved, and meanwhile the maintenance process is simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel conduit technical field especially relates to a kind of galvanized steel conduit of corrosion resistance high temperature. BACKGROUND

[0002] Steel conduit, also known as steel wire pipe, is an important pipe material, mainly used for protecting electric wire, cable and line, with the characteristics of corrosion resistance, waterproofness, fire resistance, high temperature resistance, pressure resistance and non-flammability, etc., and can also be used as the pipe shell of oil and natural gas pipeline, to play the role of transportation and protection.

[0003] The existing steel conduit is usually connected by bolt, which not only consumes time and effort, reduces work efficiency, but also is very inconvenient when needing to be overhauled or replaced. In addition, in the process of burying, in order to ensure that multiple steel conduits can be accurately butt-jointed and kept in straight line arrangement, manual assistance is still needed for straight line positioning, which not only is complex and prone to error, but also further affects construction efficiency. SUMMARY

[0004] The utility model aims at solving the shortcomings in the prior art and provides a kind of galvanized steel conduit of corrosion resistance high temperature.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of galvanized steel conduit of corrosion resistance high temperature, including two protective components, the protective component includes steel pipe as main component, the inner side wall of the steel pipe is fixedly connected with insulating layer, the side wall of the side of the steel pipe away from insulating layer is fixedly sleeved with zinc plating layer, the side wall of the side of the zinc plating layer away from steel pipe is fixedly sleeved with waterproof layer, the side wall of the side of the waterproof layer away from zinc plating layer is fixedly sleeved with external protective layer.

[0007] As a further improvement of the utility model, the insulating layer is made of polyvinyl chloride, which has good electrical insulation performance and also provides mechanical protection.

[0008] As a further improvement of the utility model, the waterproof layer is made of polyurethane foam, which not only prevents water but also provides additional thermal insulation effect.

[0009] As a further improvement of the utility model, the external protective layer is made of glass fiber reinforced plastic, which has high strength and high wear resistance.

[0010] As a further improvement of the utility model, the zinc plating layer is formed by applying zinc-rich primer on the steel pipe, and zinc acts as a sacrificial anode to protect the substrate from corrosion.

[0011] As a further improvement of the utility model, two front ends of the steel pipes are fixedly connected with plug-in rings, rear ends of the steel pipes are provided with grooves, a plurality of guide blocks are fixedly connected on the plug-in rings in a circumferential direction, and guide grooves with the same size and number as the guide blocks are formed in the grooves.

[0012] As a further improvement of the utility model, two front ends of the steel pipes are fixedly connected with plug-in rings, rear ends of the steel pipes are provided with grooves, a plurality of guide blocks are fixedly connected on the plug-in rings in a circumferential direction, and guide grooves with the same size and number as the guide blocks are formed in the grooves.

[0013] As a further improvement of the utility model, one side of each left fixing block is fixedly connected with a plug-in block, and one side of each right fixing block close to the plug-in block is provided with a plug-in groove with the same size as the plug-in block.

[0014] As a further improvement of the utility model, a plug-in hole is formed in each plug-in block, and a fixing mechanism connected with the plug-in hole is arranged on each right fixing block.

[0015] As a further improvement of the utility model, the fixing mechanism comprises a sleeve fixedly connected to one side of the right fixing block, a plug-in column arranged in the sleeve, a plug-in hole formed in the plug-in block, one end of the plug-in column penetrating through the plug-in groove and being inserted into the plug-in hole, the other end of the plug-in column being fixedly connected with a pulling block, a spring being sleeved on the plug-in column, one end of the spring being fixedly connected to the right fixing block, the other end of the spring being fixedly connected with a pulling plate, the pulling plate being fixedly sleeved on the plug-in column, and the pulling plate sliding in the sleeve.

[0016] The utility model discloses the beneficial effects of:

[0017] The external protection layer is made of glass fiber reinforced plastic, has the characteristics of high strength and high wear resistance, effectively protects the internal galvanized layer from being damaged by hard objects such as stones, prolongs the service life of the steel guide pipe, and the waterproof layer is made of polyurethane foam material, which not only prevents external moisture from entering, but also provides additional thermal insulation effect, further improves the corrosion resistance of the steel guide pipe and the ability to adapt to harsh environments.

[0018] The left fixing block, the right fixing block and the fixing mechanism replace the traditional bolt connection mode, and through the design, when the two protection assemblies are connected, the plug-in block only needs to be inserted into the plug-in groove by pulling the pulling block, and then the plug-in column is automatically locked in the plug-in hole under the action of the spring, so that the fixing is quickly completed, which not only improves the work efficiency, but also makes the maintenance or replacement more convenient.

[0019] By setting the plug-in ring and the guide block at the front end of the steel pipe, and setting the recess and the guide groove at the rear end, precise butt joint without manual assistance is realized, wherein the plurality of guide blocks are matched with the guide groove, so that the two protection assemblies can be automatically aligned and kept in linear arrangement when connected, the installation process is simplified, human error is reduced, and the construction efficiency is also improved.

[0020] The utility model discloses a multiple protective layer, quick plug-in fixing mechanism and automatic linear positioning design, improve the durability of steel conduit, installation efficiency and construction accuracy significantly, simplify the maintenance process simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 For the structure diagram of the embodiment one of the galvanized steel conduit of corrosion -resistant high temperature that the utility model proposes;

[0022] Figure 2 For the structure diagram of the side view angle of the embodiment one of the galvanized steel conduit of corrosion -resistant high temperature that the utility model proposes;

[0023] Figure 3 For the structure diagram of the embodiment two of the galvanized steel conduit of corrosion -resistant high temperature that the utility model proposes;

[0024] Figure 4 For the structure diagram of the embodiment three of the galvanized steel conduit of corrosion -resistant high temperature that the utility model proposes;

[0025] Figure 5 For the structure diagram of the fixed mechanism, left fixed block, right fixed block connection of the embodiment three of the galvanized steel conduit of corrosion -resistant high temperature that the utility model proposes.

[0026] In the drawing: 1 outer protective layer, 2 waterproof layer, 3 galvanizing layer, 4 steel pipe, 5 insulation layer, 6 recess, 7 plug-in ring, 8 left fixed block, 9 right fixed block, 10 plug-in block, 11 sleeve, 12 pull block, 13 pull plate, 14 plug-in groove, 15 spring, 16 plug-in hole, 17 protection assembly, 18 guide block, 19 guide groove, 20 plug-in column. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0028] Embodiment one

[0029] Reference Figures 1-2The corrosion-resistant high-temperature galvanized steel conduit comprises two protective assemblies 17, the steel pipe 4 as a main component, the inner side wall of the steel pipe 4 is fixedly connected with an insulation layer 5 for preventing internal electric wires and cables from aging and causing leakage due to quality problems, the insulation layer 5 is made of polyvinyl chloride and has good electrical insulation performance and can also provide certain mechanical protection, a zinc plating layer 3 for preventing the steel pipe 4 from corroding is fixedly sleeved on the side wall of the steel pipe 4 away from the insulation layer 5, the zinc plating layer 3 is obtained by applying a zinc-rich primer on the steel pipe 4, and zinc serves as a sacrificial anode to protect the base material from corrosion, a waterproof layer 2 for preventing external water vapor from entering the inside is fixedly sleeved on the side wall of the zinc plating layer 3 away from the steel pipe 4, the waterproof layer 2 is polyurethane foam and has the effects of waterproofing and additional heat preservation, and an external protective layer 1 for preventing hard objects such as stones from damaging the zinc plating layer 3 is fixedly sleeved on the side wall of the waterproof layer 2 away from the zinc plating layer 3, the external protective layer 1 is glass fiber reinforced plastic and has the characteristics of high strength and high wear resistance.

[0030] Embodiment two

[0031] With reference to Figure 3 Compared with embodiment one, the two front ends of the two steel pipes 4 in the embodiment are fixedly connected with plug-in rings 7, a plurality of guide blocks 18 for assisting in guiding are fixedly connected on the two plug-in rings 7 in a circumferential direction, the plurality of guide blocks 18 are integrally formed with the plug-in rings 7, the rear ends of the two steel pipes 4 are provided with grooves 6 matched with the plug-in rings 7, and guide grooves 19 matched in size and number with the guide blocks 18 are formed in the two grooves 6, so that the two protective assemblies 17 can be directly inserted for linear positioning without manual assistance, and the working efficiency is effectively improved.

[0032] Embodiment three

[0033] With reference to Figures 4-5 Compared with embodiment two, the two ends of the two external protective layers 1 close to the plug-in rings 7 are fixedly connected with left fixing blocks 8 on both sides, each left fixing block 8 is made of stainless steel, the two ends of the two external protective layers 1 close to the grooves 6 are fixedly connected with right fixing blocks 9 on both sides, each right fixing block 9 is made of stainless steel, one side of each left fixing block 8 is fixedly connected with a plug-in block 10 made of the same material, one side of each right fixing block 9 close to the plug-in block 10 is provided with a plug-in groove 14 matched in size with the plug-in block 10, each plug-in block 10 is provided with a plug-in hole 16, and each right fixing block 9 is provided with a fixing mechanism connected with the plug-in hole 16, so that each plug-in block 10 can be fixed in each plug-in groove 14 through the two fixing mechanisms, thereby indirectly fixing the two protective assemblies 17 and facilitating disassembly of the two protective assemblies 17.

[0034] The fixing mechanism comprises a sleeve 11 fixedly connected to one side of the right fixing block 9, an insertion column 20 arranged in the sleeve 11, an insertion hole 16 of the same size as the insertion column 20 arranged in the insertion block 10, one end of the insertion column 20 penetrating through the insertion slot 14 and being inserted into the insertion hole 16, the other end of the insertion column 20 being fixedly connected with a pulling block 12, the pulling block 12 being spherical, so as to facilitate the pulling block 12 to be pulled out of the insertion hole 16, a spring 15 arranged on the insertion column 20, the spring 15 being used to keep the insertion column 20 inserted into the insertion hole 16 without external force, one end of the spring 15 being fixedly connected with the right fixing block 9, the other end of the spring 15 being fixedly connected with a pulling plate 13, the pulling plate 13 being fixedly sleeved on the insertion column 20, the pulling plate 13 sliding in the sleeve 11, the insertion column 20 being pulled out of the insertion hole 16 by pulling the pulling block 12, and the spring 15 moving the pulling plate 13 and the insertion column 20 being inserted into the insertion hole 16 when the pulling block 12 is loosened.

[0035] In use, the worker inserts the insertion ring 7 on the close one end of the two protection assemblies 17 into the corresponding groove 6, aligns the plurality of guide blocks 18 with the plurality of guide slots 19 and the insertion block 10 with the insertion slot 14, then pulls the pulling block 12 to drive the insertion column 20 to be separated from the insertion slot 14, then inserts the insertion block 10 into the insertion slot 14, then loosens the pulling block 12, the insertion column 20 is inserted into the insertion hole 16 under the action of the spring 15, and the fixing between the two protection assemblies 17 is completed, and the above steps are repeated when the plurality of protection assemblies 17 are fixed.

[0036] The above is only a preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. Corrosion-resistant high-temperature galvanized steel conduit comprising two protective assemblies (17), characterized in that, The protection assembly (17) comprises a steel pipe (4) as a main component, an insulating layer (5) is fixedly connected to the inner side wall of the steel pipe (4), a zinc plating layer (3) is fixedly sleeved to the side wall of the steel pipe (4) away from the insulating layer (5), a waterproof layer (2) is fixedly sleeved to the side wall of the zinc plating layer (3) away from the steel pipe (4), and an external protection layer (1) is fixedly sleeved to the side wall of the waterproof layer (2) away from the zinc plating layer (3).

2. A corrosion and high temperature resistant galvanized steel conduit as defined in claim 1, wherein, The insulating layer (5) is made of polyvinyl chloride.

3. A corrosion resistant high temperature galvanized steel conduit as defined in claim 1 wherein, The waterproof layer (2) is made of polyurethane foam.

4. A corrosion and high temperature resistant galvanized steel conduit as defined in claim 1, wherein, The external protection layer (1) is made of glass fiber reinforced plastic.

5. A corrosion and high temperature resistant galvanized steel conduit as defined in claim 1, wherein, The zinc plating layer (3) is obtained by applying a zinc-rich primer on the steel pipe (4).

6. A corrosion and high temperature resistant galvanized steel conduit as defined in claim 1, wherein, The front ends of the two steel pipes (4) are fixedly connected with plug-in rings (7), the rear ends of the two steel pipes (4) are provided with grooves (6), a plurality of guide blocks (18) are fixedly connected to the circumferences of the two plug-in rings (7), and guide grooves (19) with the same size and number as the guide blocks (18) are formed in the two grooves (6).

7. A corrosion and high temperature resistant galvanized steel conduit as defined in claim 1, wherein, The left sides of the two external protection layers (1) near the plug-in rings (7) are fixedly connected with left fixing blocks (8), and the right sides of the two external protection layers (1) near the grooves (6) are fixedly connected with right fixing blocks (9).

8. A corrosion and high temperature resistant galvanized steel conduit according to claim 7, characterized in that, The left sides of the left fixing blocks (8) are fixedly connected with plug-in blocks (10), and the right sides of the right fixing blocks (9) near the plug-in blocks (10) are provided with plug-in grooves (14) with the same size as the plug-in blocks (10).

9. A corrosion and high temperature resistant galvanized steel conduit according to claim 8, characterized in that, Plug-in holes (16) are formed in the plug-in blocks (10), and each right fixing block (9) is provided with a fixing mechanism connected with the plug-in holes (16).

10. A corrosion and high temperature resistant galvanized steel conduit according to claim 9, characterized in that, The fixing mechanism comprises a sleeve (11) fixedly connected to one side of the right fixing block (9), a plug-in column (20) arranged in the sleeve (11), a plug-in hole (16) formed in the plug-in block (10), one end of the plug-in column (20) penetrating through the plug-in groove (14) and being plugged into the plug-in hole (16), the other end of the plug-in column (20) being fixedly connected with a pulling block (12), a spring (15) sleeved to the plug-in column (20), one end of the spring (15) being fixedly connected to the right fixing block (9), the other end of the spring (15) being fixedly connected with a pulling plate (13), the pulling plate (13) being fixedly sleeved to the plug-in column (20), and the pulling plate (13) sliding in the sleeve (11).

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