Heat-deformation-resistant oil pump joint

Abstract

The utility model discloses a thermal deformation resistant oil pump joint, and particularly relates to the technical field of joints, the thermal deformation resistant oil pump joint comprises an inner pipe structure, an outer pipe structure and mounting joints, the inner surface of the inner pipe structure is coated with an anti-corrosion layer, the outer pipe structure is arranged on the outer surface of the inner pipe structure, and the mounting joints are arranged on the outer surfaces of the two ends of the outer pipe structure; the flexible pipe structure composed of the inner pipe and the outer pipe can be bent according to the flexibility and flexibility of the flexible pipe structure, thermal stress can be dispersed to the whole structure of the flexible pipe structure, and when the thermal stress is transmitted to the flexible pipe, the thermal stress can be evenly distributed to all bent parts through bending deformation, so that the thermal stress is evenly distributed. The angle of the connector can be easily and randomly adjusted through the hose structure composed of the inner pipe and the outer pipe, the angle can be flexibly changed according to the actual installation environment, the situation that the connector cannot be connected due to slight angle deviation is avoided, and the service life of the connector is prolonged. Therefore, the installation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of joints, and more specifically, to an oil pump joint that is resistant to thermal deformation. Background Art

[0002] In the fields of petroleum, metallurgy, hydropower, etc., oil pumps are usually used, and oil pump connectors are used to connect oil pumps to other pipe fittings;

[0003] After searching, the existing patent (publication number: CN118548207A) discloses an oil pump connector, including: a sub-connector and a female connector, the sub-connector is provided with a slot, the slot is arranged along the circumference of the sub-connector, the slot is also provided with a socket, the socket is located at the bottom of the slot and extends along the radial direction of the sub-connector; the female connector is provided with a support, the support is provided with a plug-in plate, the plug-in plate extends along the radial direction of the female connector and is used to cooperate with the slot, the plug-in plate is provided with a plug-in portion, and the plug-in portion can be detachably inserted into the socket. The disclosed oil pump connector can ensure the stability of the sub-connector and the female connector after docking through the slot, the plug-in plate, and the cooperation between the socket and the plug-in portion. Even if a certain movement or tilt occurs under external environmental factors, the stability of the connection between the sub-connector and the female connector can be guaranteed without fluid leakage and safety hazards. In the process of realizing this utility model, the inventor found that the existing technology has the following problems:

[0004] The existing oil pump joints are rigid structures. During operation, when the oil pump transports high-temperature media or the ambient temperature fluctuates significantly, thermal stress will be generated due to thermal expansion and contraction. The thermal stress will be concentrated in certain parts of the joints. As the thermal stress continues to accumulate, it is easy to cause the joints to deform, crack, or fail to seal. In addition, in actual installation scenarios, it is often difficult to completely align the interface position and direction between the oil pump and external piping equipment. The angle of the joint is fixed, and the requirements for the installation angle are very strict. If the interface angle deviates slightly, installation will be difficult or even impossible to connect, causing installation inconvenience.

[0005] Therefore, in order to solve the above problems, an oil pump joint resistant to thermal deformation is proposed. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an oil pump connector that is resistant to thermal deformation, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: an oil pump joint resistant to heat deformation, comprising an inner tube structure, an outer tube structure, and a mounting joint, wherein the inner surface of the inner tube structure is coated with an anti-corrosion layer, the outer tube structure is arranged on the outer surface of the inner tube structure, and limit rings are provided at the edges of both ends of the outer tube structure, and the mounting joints are arranged on the outer surfaces of both ends of the outer tube structure, and a rotating sleeve is installed on one side of the opposite surfaces of the two sets of mounting joints, and a groove is provided on the outer surface of the rotating sleeve;

[0008] The outer surface of the mounting joint is provided with an external thread, and sealing rings are provided at the edges of the outer sides of the two groups of mounting joints, and limiting grooves are provided in the inner cavities on the outer sides of the two groups of mounting joints. The outer surface of the outer tube structure is sleeved with a protective sleeve, and an insulation layer is provided between the outer tube structure and the protective sleeve.

[0009] Preferably, the material of the inner tube structure is fluororubber, the material of the outer tube structure is polytetrafluoroethylene, and the inner tube structure and the outer tube structure form a set of hose structures.

[0010] Preferably, the two groups of limiting rings are symmetrically arranged, and after the two groups of limiting rings are respectively inserted into the two groups of mounting joints, they abut against the inner cavity of the limiting groove to achieve limiting.

[0011] Preferably, the grooves are provided in a plurality of groups, and the grooves in the plurality of groups are equidistantly spaced around the outer surface of the rotating sleeve.

[0012] Preferably, the sealing ring is made of silica gel, the insulation layer is made of polyurethane foam, and the anti-corrosion layer is made of ceramic coating.

[0013] Preferably, the material of the protective sleeve is stainless steel wire, and the surface of the protective sleeve is woven into a mesh distribution arrangement.

[0014] The technical effects and advantages of this utility model are:

[0015] 1. Compared with the existing technology, the oil pump joint that resists heat deformation can be bent according to its own flexibility and elasticity through the hose structure composed of inner and outer tubes, which can disperse thermal stress to its entire structure. When thermal stress is transmitted to the hose, it can bend and deform to evenly distribute the stress in each bent part, ensuring that the joint is always tightly connected to the oil pump and the external pipe body, thereby resisting the thermal stress caused by thermal deformation.

[0016] 2. Compared with the existing technology, the heat-resistant oil pump connector can easily and arbitrarily adjust the angle of the connector through the hose structure composed of inner and outer tubes, connect the oil pump and external pipeline equipment in different directions and angles, and flexibly change the angle according to the actual installation environment to avoid the interface being unable to connect due to a slight deviation in the angle, thereby improving the convenience of installation and saving installation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the cross section of the limiting groove of the utility model.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the inner tube structure and the outer tube structure of the utility model.

[0020] Figure 4 For this utility model Figure 2 Schematic diagram of the locally enlarged structure at point A in the figure.

[0021] The accompanying drawings are marked as follows: 1. inner tube structure; 2. outer tube structure; 3. limiting ring; 4. rotating sleeve; 41. groove; 5. mounting joint; 51. external thread; 6. sealing ring; 7. limiting groove; 8. protective sleeve; 9. thermal insulation layer; 10. anti-corrosion layer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0023] As attached Figures 1 to 4 The oil pump joint shown here comprises an inner tube structure 1, an outer tube structure 2 and a mounting joint 5. The inner surface of the inner tube structure 1 is coated with an anti-corrosion layer 10. The outer tube structure 2 is arranged on the outer surface of the inner tube structure 1. Limiting rings 3 are provided at the edges of both ends of the outer tube structure 2. The mounting joints 5 are arranged on the outer surfaces of both ends of the outer tube structure 2. Rotating sleeves 4 are installed on one side of the opposing surfaces of the two sets of mounting joints 5. The outer surface of the rotating sleeve 4 is provided with a groove 41.

[0024] An external thread 51 is provided on the outer surface of the mounting joint 5, and a sealing ring 6 is provided at the edge of the outer side of the two sets of mounting joints 5, and a limiting groove 7 is provided in the inner cavity on the outer side of the two sets of mounting joints 5. The outer surface of the outer tube structure 2 is sleeved with a protective sleeve 8, and an insulation layer 9 is provided between the outer tube structure 2 and the protective sleeve 8.

[0025] Among them: the inner tube structure 1 is protected from corrosion by the anti-corrosion layer 10 to prevent the inner tube structure 1 from being corroded by corrosive substances in the oil, forming a chemically stable isolation layer. The fluororubber material of the inner tube structure 1 itself has high temperature resistance and can adapt to the heat that may be generated when the oil pump is working, avoiding deformation of the inner tube or performance degradation due to temperature increase. The outer tube structure 2 and the limit ring 3 are integrally formed. When the limit rings 3 at both ends of the outer tube structure 2 are inserted into the limit grooves 7 of the mounting joint 5, the mounting joint 5 is respectively connected and fixed to the oil pump body and the external pipeline equipment through the external thread 51. The limit ring 3 will be tightly stuck in the limit groove 7 of the mounting joint 5. To prevent the outer tube structure 2 from displacement and sealing leakage during use, the sealing ring 6 has good elasticity and high temperature resistance. When the installation joint 5 is connected to the oil pump body and external pipeline equipment respectively, the sealing ring 6 can fill the tiny gap in the connection part to form a reliable sealing barrier, effectively preventing the medium of the hose structure from leaking. The user controls the rotation of the rotating sleeve 4 by pinching the groove 41, thereby conveniently providing a lever point to control the connection and tightening of the installation joint 5 with the external equipment, and prevents the outer tube structure 2 and the insulation layer 9 from being damaged through the protective sleeve 8. The insulation layer 9 can prevent the medium from cooling and solidifying in the pipeline, thereby ensuring the normal operation of the oil pump system. Example 2

[0026] Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details:

[0027] As a preferred embodiment, the material of the inner tube structure 1 is fluororubber, and the material of the outer tube structure 2 is polytetrafluoroethylene. The inner tube structure 1 and the outer tube structure 2 form a hose structure; further, the inner tube structure 1 of fluororubber and the outer tube structure 2 of polytetrafluoroethylene have good toughness and strength, and can withstand oil pressure changes, thermal stress and external mechanical stress to a certain extent and undergo elastic deformation. The hose structure composed of such an inner tube structure 1 and the outer tube structure 2 can bend and stretch in different directions, which can effectively disperse thermal stress, avoid excessive accumulation of stress at a certain point, and avoid the risk of leakage or rupture due to thermal deformation.

[0028] As a preferred embodiment, the two groups of limiting rings 3 are symmetrically arranged, and the two groups of limiting rings 3 are respectively inserted into the two groups of mounting joints 5 and abut against the inner cavity of the limiting groove 7 to achieve limiting. Furthermore, the limiting rings 3 will be tightly stuck in the limiting groove 7 of the mounting joint 5, thereby preventing the inner tube structure 1 and the outer tube structure from displacement and sealing leakage during use.

[0029] As a preferred embodiment, several groups of grooves 41 are provided, and the several groups of grooves 41 are equidistantly spaced around the outer surface of the rotating sleeve 4; further, the several surrounding groups of grooves 41 facilitate the user to rotate the rotating sleeve 4, control the rotation of the mounting joint 5, and ensure that the external thread 51 on the outer surface can be engaged with the external equipment and the oil pump body.

[0030] As a preferred embodiment, the sealing ring 6 is made of silica gel, the insulation layer 9 is made of polyurethane foam, and the anti-corrosion layer 10 is made of ceramic coating; further, the sealing ring 6 made of silica gel has good elasticity and softness, and can fit tightly in the gap between the installation joint 5 and the external connection component or the oil pump, effectively filling the tiny gap to prevent oil leakage, and the insulation layer 9 made of polyurethane foam has a certain flexibility and a very low thermal conductivity coefficient. It can fit well on the outer surface of the outer tube structure 2 and can deform as the shape of the outer tube changes. It will not have gaps or fall off due to bending, twisting, etc. of the outer tube during installation or use, and can effectively prevent heat transfer and insulate it. The anti-corrosion layer 10 made of ceramic coating has excellent high temperature resistance and can maintain stable physical and chemical properties in a high temperature environment. When transporting high-temperature oil, it will not soften or peel off due to high temperature, and can resist the erosion of various corrosive substances in the oil, protecting the inner tube structure 1 from corrosion.

[0031] As a preferred embodiment, the material of the protective sleeve 8 is stainless steel wire, and the surface of the protective sleeve 8 is woven into a mesh distribution arrangement; further, the mesh protective sleeve 8 woven with stainless steel wire has very high strength, and when the oil pump connector is hit by external objects or accidental mechanical impact, it can avoid damage to its insulation layer 9 and the outer tube structure 2.

[0032] The working process of the present invention is as follows: first, when the oil pump is running, the oil flows in the inner tube structure 1 under a certain pressure, and the anti-corrosion layer 10 protects the inner tube structure 1 from corrosion. The inner tube structure 1 made of fluororubber can produce appropriate deformation according to the fluctuation of oil pressure due to its good elasticity and flexibility. At the same time, the outer tube structure 2 made of polytetrafluoroethylene provides effective constraint and support for the inner tube structure 1 with its high strength and stability. The two work together to ensure the smooth transmission of oil in the pipeline. When encountering thermal deformation, such as oil temperature increase or ambient temperature change, the hose structure composed of the inner tube structure 1 and the outer tube structure 2 fully exerts its flexibility advantage, and due to the characteristics of the two materials, the thermal stress can be evenly dispersed in the hose structure, effectively avoiding stress concentration in local areas and causing pipeline rupture or sealing failure. In the connection and installation link, with the help of the grooves 41 on the outer surface of the rotating sleeve 4 with equal intervals, the user can easily apply force to rotate the rotating sleeve 4, thereby driving the installation joint 5 to rotate, so that the installation The external thread 51 on the outer surface of the joint 5 is precisely engaged with the corresponding thread structure of the external equipment or the oil pump body, and the limit rings 3 at both ends of the outer tube structure 2 are stuck in the limit groove 7 in the installation joint 5 for firm limitation during this process, thereby achieving a stable connection. The sealing ring 6 made of silica gel uses its excellent elasticity and softness to tightly fill the gap between the installation joint 5 and the external connection component, building a reliable sealing line of defense, thereby preventing the occurrence of oil leakage at the connection. The insulation layer 9 made of polyurethane foam has a certain flexibility and a very low thermal conductivity. It can fit well on the outer surface of the outer tube structure 2, can deform as the shape of the outer tube changes, and can effectively prevent heat transfer and insulate it. The mesh protective sleeve 8 woven with stainless steel wire has very high strength. When the oil pump joint is hit by external objects or accidental mechanical impact, it can avoid damage to its insulation layer 9 and the outer tube structure 2. The above is the working principle of this kind of heat-resistant oil pump joint.

Claims

1. A heat-deformation-resistant oil pump joint, comprising an inner tube structure (1), an outer tube structure (2) and a mounting joint (5), characterized in that: The inner surface of the inner tube structure (1) is coated with an anti-corrosion layer (10), the outer tube structure (2) is arranged on the outer surface of the inner tube structure (1), and limit rings (3) are provided at the edges of both ends of the outer tube structure (2), the mounting joints (5) are provided on the outer surfaces of both ends of the outer tube structure (2), and a rotating sleeve (4) is installed on one side of the opposite surface of the two groups of mounting joints (5), and a groove (41) is provided on the outer surface of the rotating sleeve (4); The outer surface of the mounting joint (5) is provided with an external thread (51), and the outer edges of the two groups of mounting joints (5) are provided with sealing rings (6), and the inner cavities of the outer sides of the two groups of mounting joints (5) are provided with limiting grooves (7), the outer surface of the outer tube structure (2) is sleeved with a protective sleeve (8), and an insulation layer (9) is provided between the outer tube structure (2) and the protective sleeve (8).

2. The heat-deformation-resistant oil pump joint according to claim 1, characterized in that: The material of the inner tube structure (1) is fluororubber, the material of the outer tube structure (2) is polytetrafluoroethylene, and the inner tube structure (1) and the outer tube structure (2) form a set of hose structures.

3. The heat-deformation-resistant oil pump joint according to claim 1, characterized in that: The two groups of limiting rings (3) are symmetrically arranged. After being respectively inserted into the two groups of mounting joints (5), the two groups of limiting rings (3) abut against the inner cavity of the limiting groove (7) to achieve limiting.

4. The heat-deformation-resistant oil pump joint according to claim 1, characterized in that: The grooves (41) are provided in a plurality of groups, and the grooves (41) in the plurality of groups are equidistantly spaced around the outer surface of the rotating sleeve (4).

5. The heat-deformation-resistant oil pump joint according to claim 1, characterized in that: The material of the sealing ring (6) is silica gel, the material of the thermal insulation layer (9) is polyurethane foam, and the material of the anti-corrosion layer (10) is ceramic coating.

6. The heat-deformation-resistant oil pump joint according to claim 1, characterized in that: The material of the protective sleeve (8) is stainless steel wire, and the surface of the protective sleeve (8) is woven into a mesh-like distribution arrangement.

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