Flexible connector and oil tank truck
By using flexible connectors with corrugated bent pipe structure in the loading and unloading pipeline of the oil tanker, the problems of liquid leakage and assembly complexity in the prior art are solved, and higher sealing and compressive strength are achieved, and the assembly process is simplified.
Patent Information
- Application Number
- CN202323671146.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-29
AI Technical Summary
There is a risk of liquid leakage at the connections of existing oil tanker loading and unloading pipelines, and there is a problem of long production cycle, non-standardization, high assembly accuracy, poor vibration resistance and inconvenient disassembly and maintenance.
Using flexible connectors, designed as corrugated bent pipe structure, including metal outer layer and elastic intermediate layer from the outside to the inside, with flange treatment at both ends and fixing the flange. The intermediate layer can be optionally equipped with corrosion-resistant inner layer. , the metal outer layer provides protection and compressive strength.
It improves the degree of sealing at the connection, reduces liquid leakage, enhances the stability and compressive strength of the connector, has certain elasticity and environmental adaptability, and simplifies the assembly process.
Smart Images
Figure CN222277792U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil tanker trucks, in particular to a flexible connector and an oil tanker truck. Background Art
[0002] Existing tanker loading and unloading pipes often use metal elbows, which are assembled on site by spot welding and then fully welded. The disadvantages of this method are: long production cycle, non-standardization, inability to achieve assembly line assembly, high assembly precision requirements, poor vibration resistance, and inconvenient disassembly and maintenance.
[0003] Patent 201520700150.3 discloses a non-metallic flexible elbow. The elbow body is made of silicone rubber. Because the flexible material has certain elasticity and toughness, it can reduce the displacement change caused by the vibration of the equipment during use. A plurality of circular clamps are coaxially installed on the outer surface of the elbow body to make the cylindrical structure of the elbow body more stable. However, it can be seen from its attached Figure 3 that the flange is connected and fixed to the two ends of the elbow body by rivets or screws and nuts, which is relatively rough and there is a risk of leakage. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a flexible connector, improve the airtightness of the connection between the two sides of the connector and the flange, and reduce liquid leakage.
[0005] In order to solve the above technical problems, the utility model discloses a flexible connector in the first aspect. The flexible connector is a corrugated elbow, which includes a metal outer layer and an elastic middle layer from the outside to the inside. The flexible connector is connected to other connecting pipes through a flange.
[0006] Both ends of the flexible connector are flanged, and the outer diameter of the flange is larger than the inner diameter of the flange;
[0007] The inner diameter of the flange is greater than the outer diameter of the flexible connector. The flange surrounds the flexible connector and is fixed on the flange.
[0008] As an optional implementation, the elastic intermediate layer also includes a corrosion-resistant inner layer.
[0009] As another optional embodiment, the material of the corrosion-resistant inner layer is polytetrafluoroethylene, natural rubber, styrene-butadiene rubber, butyl rubber, nitrile rubber, EPDM rubber, chloroprene rubber, silicone rubber or fluororubber.
[0010] As another optional implementation, the thickness of the corrosion-resistant inner layer is 1-6 mm.
[0011] As another optional implementation, the thickness of the metal outer layer is 0.1-0.8 mm.
[0012] As another optional implementation, the material of the elastic middle layer is synthetic rubber or natural rubber modified rubber.
[0013] As another optional embodiment, the synthetic rubber is solution-polymerized styrene butadiene rubber, rare earth butadiene rubber or high vinyl butadiene rubber.
[0014] The second aspect of the utility model discloses an oil tanker, comprising the flexible connector as described in the first aspect of the utility model.
[0015] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:
[0016] The two ends of the flexible connector of the utility model embodiment are flanging processed, and the flange is fixed on the flanging, so that the liquid in the connector is in the curved pipe throughout the whole process, and it is not easy to leak even at the connection between the flange and the connector; the flexible connector is a corrugated curved pipe, and the corrugated curved pipe structure has higher stability and higher compressive strength than the smooth curved pipe structure, and does not need to be provided with a clamp, and has a certain elasticity in the direction of the pipe length (the size can be slightly expanded and contracted), so it also has good adaptability to the pipeline environment; the middle layer is an elastic material, which makes the flexible connector have a certain elasticity and toughness, and the outer layer is metal, which can better wrap and protect the elastic material, provide compressive strength and slow down aging. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 It is a structural schematic diagram of a flexible connector disclosed in an embodiment of the utility model. DETAILED DESCRIPTION
[0019] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] Embodiment 1
[0021] See also Figure 1The embodiment of the utility model discloses a flexible connector 1, which is a corrugated elbow, and includes a metal outer layer 11 and an elastic middle layer 12 from the outside to the inside; the flexible connector is connected to other connecting pipes through a flange;
[0022] Both ends of the flexible connector are flanged, and the outer diameter of the flange is larger than the inner diameter of the flange 2;
[0023] The inner diameter of the flange is greater than the outer diameter of the flexible connector. The flange surrounds the flexible connector and is fixed on the flange.
[0024] The two ends of the flexible connector of the utility model are flanging processed, and the flange is fixed on the flanging, so that the liquid in the connector is in the curved pipe throughout the whole process, and leakage is not likely to occur even at the connection between the flange and the connector; the flexible connector is a corrugated curved pipe, and the corrugated curved pipe structure has higher stability and higher compressive strength than the smooth curved pipe structure, and does not need to be provided with a clamp, and has a certain elasticity in the direction of the pipe length (the size can be slightly expanded and contracted), so it also has good adaptability to the pipeline environment; the middle layer is an elastic material, which makes the flexible connector have a certain elasticity and toughness, and the outer layer is metal, which can better wrap and protect the elastic material, provide compressive strength and slow down aging.
[0025] In an optional embodiment, the elastic intermediate layer further includes a corrosion-resistant inner layer 13 .
[0026] In yet another optional embodiment, the material of the corrosion-resistant inner layer is polytetrafluoroethylene, natural rubber, styrene-butadiene rubber, butyl rubber, nitrile rubber, EPDM rubber, chloroprene rubber, silicone rubber or fluororubber.
[0027] In yet another optional embodiment, the thickness of the corrosion-resistant inner layer is 1-6 mm.
[0028] In yet another optional embodiment, the thickness of the metal outer layer is 0.1-0.8 mm.
[0029] In yet another optional embodiment, the material of the elastic middle layer is synthetic rubber or natural rubber modified rubber.
[0030] In yet another optional embodiment, the synthetic rubber is solution-polymerized styrene-butadiene rubber, rare earth butadiene rubber or high vinyl butadiene rubber.
[0031] The specific implementation steps of the flexible connector of this embodiment can be as follows:
[0032] 1. Outer layer preparation
[0033] Weld the steel plates with a thickness of 0.1-0.8mm into a straight tube according to a certain size and press it into a bellows shape. Bend the bellows into a certain angle and set aside.
[0034] 2. Preparation of the innermost layer
[0035] Use elbow mold to coat oil-resistant, solvent-resistant, chemical-resistant, corrosion-resistant, strong oxidant-resistant and other materials on the mold to make an inner layer structure with a thickness of 1-6mm. The material may be known or unknown materials such as polytetrafluoroethylene, natural rubber, styrene-butadiene rubber, butyl rubber, nitrile rubber, EPDM rubber, chloroprene rubber, silicone rubber, fluororubber, etc. It is prepared for use.
[0036] 3. Assembly and molding
[0037] Put the flange (including 4-hole and 6-hole flanges) on the corrugated elbow, turn the corrugated elbow, the outer diameter of the turn is larger than the inner diameter of the flange, and fix the inner layer in the corrugated elbow with a clamp. Pour the middle layer between the inner layer and the corrugated pipe until it is filled and formed. The material of the middle layer includes but is not limited to synthetic rubbers such as solution-polymerized styrene-butadiene rubber, rare earth butadiene rubber, high vinyl butadiene rubber, and elastomers such as natural rubber modified rubber.
[0038] Embodiment 2
[0039] A tanker truck comprises the flexible connector as described in the first embodiment.
[0040] The contents disclosed in the embodiments of the present invention only disclose the preferred embodiments of the present invention, which are only used to illustrate the technical solutions of the present invention, rather than to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it should be understood by those skilled in the art that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A flexible connector, characterized in that: The flexible connector is a corrugated elbow, which includes a metal outer layer and an elastic middle layer from the outside to the inside; the flexible connector is connected to other connecting pipes through a flange; Both ends of the flexible connector are flanged, and the outer diameter of the flange is larger than the inner diameter of the flange; The inner diameter of the flange is greater than the outer diameter of the flexible connector. The flange surrounds the flexible connector and is fixed on the flange.
2. The flexible connector according to claim 1, characterized in that: The elastic middle layer also includes a corrosion-resistant inner layer.
3. The flexible connector according to claim 2, characterized in that: The material of the corrosion-resistant inner layer is polytetrafluoroethylene, natural rubber, styrene-butadiene rubber, butyl rubber, nitrile rubber, EPDM rubber, chloroprene rubber, silicone rubber or fluororubber.
4. The flexible connector according to claim 2, characterized in that: The thickness of the corrosion-resistant inner layer is 1-6 mm.
5. The flexible connector according to claim 1, characterized in that: The thickness of the metal outer layer is 0.1-0.8 mm.
6. The flexible connector according to claim 1, characterized in that: The material of the elastic middle layer is synthetic rubber or natural rubber modified rubber.
7. The flexible connector according to claim 6, characterized in that: The synthetic rubber is solution-polymerized styrene-butadiene rubber, rare earth butadiene rubber or high vinyl butadiene rubber.
8. A tanker truck, characterized in that: Comprising the flexible connector as described in any one of claims 1-7.