Wear-resistant bending-resistant oil pipe assembly

Abstract

The utility model belongs to the technical field of oil pipe assemblies, and particularly relates to a wear-resistant bending-resistant oil pipe assembly which comprises an oil pipe body, an outer wrapping layer is installed on the outer surface wall of one end of the oil pipe body in an inserted mode, an inner supporting layer is installed in an inner cavity of the end, close to the outer wrapping layer, of the oil pipe body in an inserted mode, and a plurality of transverse grooves distributed circumferentially at equal intervals are formed in the outer wall of the oil pipe body. A plurality of transverse strips matched with the transverse grooves are arranged on the circumferential inner wall of the outer wrapping layer, and the transverse grooves are matched with the transverse strips in an inserted mode; the inner supporting layer is arranged in the inner cavity of the oil pipe body, the transverse bearing stress of the inner supporting layer is increased through the annular protrusions distributed on the inner supporting layer in a multi-section mode, and the situation that the device body is prone to bending after the device is used for a long time is avoided; the outer layer surface of the oil pipe body is protected through the wrapping layer, friction between the outer wall of the oil pipe body and the surrounding environment is avoided, and the service life of the oil pipe body is greatly prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil pipe assemblies, in particular to a wear-resistant and bending-resistant oil pipe assembly. Background Art

[0002] The pipe connecting the engine and the oil pump injector is called the oil pipe assembly. The oil pipe needs to withstand a certain oil pressure and has a certain fatigue strength to withstand the oil pressure shock required during engine operation.

[0003] For example, the Chinese patent with the announcement number CN217518763U discloses an explosion-proof oil pipe assembly, including a connector, a first metal pipe and a connecting hose, wherein the end of the connector is connected to the first metal pipe, and the end of the first metal pipe is fixedly connected to the connecting hose; it also includes: a second metal pipe, fixedly connected to the end of the connecting hose, and a butt joint is provided at the end of the second metal pipe; a pressure relief shell, fixedly connected to the outer wall of the first metal pipe, and an overflow pipe is provided on the side of the pressure relief shell, and a sealing gasket is provided inside the pressure relief shell; a blocking block is provided at the bottom of the sealing gasket. The explosion-proof oil pipe assembly utilizes the movement of the blocking block, and when the blocking block moves, it squeezes the compression spring to open the overflow pipe flow channel, so that the oil in the oil circuit can be discharged from the overflow pipe, thereby reducing the oil pressure in the oil circuit and avoiding the oil pipe from bursting due to excessive oil pressure.

[0004] This patent has some disadvantages when used, such as: the oil pipe assembly structure in this patent is relatively simple, and the oil pipe is easy to bend after long-term use, affecting the quality of the oil pipe, thereby reducing the service life of the oil pipe. In addition, after long-term use, the surface of the oil pipe in the device in this patent is prone to wear. As the wear increases, the oil pipe assembly gradually cannot meet the high-pressure use requirements. In view of this, we propose a wear-resistant and anti-bending oil pipe assembly. Utility Model Content

[0005] The purpose of the utility model is to provide a wear-resistant and anti-bending oil pipe assembly to solve the problems raised in the above background technology.

[0006] In view of this, the utility model provides a wear-resistant and anti-bending oil pipe assembly, comprising:

[0007] An oil pipe body, wherein an outer cladding is inserted and installed on the outer wall of one end of the oil pipe body, an inner support layer is inserted and installed in the inner cavity of one end of the oil pipe body close to the outer cladding, a plurality of transverse grooves equidistantly distributed in a circumference are provided on the outer wall of the oil pipe body, a plurality of transverse bars matching the plurality of transverse grooves are provided on the circumferential inner wall of the outer cladding, the transverse grooves and the transverse bars are plugged and matched, a plurality of annular protrusions equidistantly distributed in a linear manner are provided on the circumferential outer wall of the inner support layer, an annular groove matching the plurality of annular protrusions is provided on the inner wall of the oil pipe body, and the annular protrusions are rotatably matched with the annular grooves;

[0008] A connector, the connector is arranged on the same side of the outer cladding and the inner supporting layer, the outer cladding and the connector are an integrally formed structure, an end head is coaxially fixed on the side of the connector away from the oil pipe body, and positioning protrusions are symmetrically arranged on the end head;

[0009] The booster assembly is installed at one end of the inner support layer away from the connector and is used to boost the pressure of the liquid flowing through the inner cavity of the oil pipe body.

[0010] In the present technical solution, by setting an outer cladding layer and an inner supporting layer, and utilizing the cooperation of multiple transverse grooves and transverse bars as well as multiple annular protrusions and annular grooves, the oil pipe body cannot rotate or slide in the interlayer formed by the outer cladding layer and the inner supporting layer, thereby improving the shortcoming of the traditional oil pipe assembly that the tubular part is easily separated from the assembly end, and by setting an inner supporting layer in the inner cavity of the oil pipe body, the lateral bearing stress of the inner supporting layer is increased by utilizing the multi-stage distributed annular protrusions on the inner supporting layer, thereby preventing the main body of the device from being easily bent after long-term use; by coating the outer side of the oil pipe body with a tight wrapping layer, the wrapping layer is utilized to protect the outer surface of the oil pipe body, thereby preventing the outer wall of the oil pipe body from rubbing against the surrounding environment, thereby greatly increasing the service life of the oil pipe body.

[0011] In the above technical solution, further, a connecting end is provided at one end of the inner supporting layer close to the connecting head, an external thread is provided on the circumferential outer wall of the connecting end, an internal thread is provided on the circumferential inner wall of the connecting head, and the connecting end is threadedly connected to the connecting head.

[0012] In the technical solution, by providing a connecting end and providing a thread on the connecting end, the inner supporting layer can be easily fixed to the connecting head.

[0013] In the above technical solution, further, a spiral hole is provided on the inner cavity wall of one end of the connecting end close to the connecting head.

[0014] In the technical solution, by providing a rotation hole, it is convenient for an operator to rotate the inner supporting layer so that the inner supporting layer is fixed to the connecting head.

[0015] In the above technical solution, further, a sealing groove is provided on a surface of one side of the oil pipe body close to the connector, a sealing ring is placed in the sealing groove, and the oil pipe body is tightly fitted to the inner surface of the connector.

[0016] In the present technical solution, by providing a sealing groove and a sealing ring, the air tightness between the oil pipe body and the connector is increased, leakage of oil in the inner cavity of the oil pipe body is avoided, and the sealing performance of the device is improved.

[0017] In the above technical solution, further, the circumferential outer wall of the oil pipe body and the circumferential inner wall of the oil pipe body are tightly fitted with the inner wall of the outer cladding layer and the outer wall of the inner support layer respectively.

[0018] In the above technical solution, further, the booster assembly includes:

[0019] The boost head is a hollow tubular structure, a guide ring is arranged inside the boost head, the guide ring is a hollow truncated cone structure, the boost head and the guide ring are an integrally formed structure, a guide tube coaxially connected to the guide ring is arranged inside the boost head, an external thread is arranged on the boost head, an internal thread is opened in the inner cavity of the end of the inner support layer away from the connecting head, and the boost head is threadedly connected to the inner support layer.

[0020] In the above technical solution, further, the outer surface of the oil pipe body is covered with a wrapping layer.

[0021] The beneficial effects of the utility model are:

[0022] 1. The wear-resistant and anti-bending oil pipe assembly, by providing an outer cladding layer and an inner supporting layer, utilizes the cooperation of multiple transverse grooves and transverse bars as well as multiple annular protrusions and annular grooves, so that the oil pipe body cannot rotate or slide in the interlayer formed by the outer cladding layer and the inner supporting layer, thereby improving the disadvantage that the tubular part of the traditional oil pipe assembly is easily separated from the assembly end.

[0023] 2. The wear-resistant and anti-bending oil pipe assembly sets an inner support layer in the inner cavity of the oil pipe body, and uses multi-stage distributed annular protrusions on the inner support layer to increase the lateral stress of the inner support layer, thereby preventing the device body from being easily bent after long-term use.

[0024] 3. The wear-resistant and anti-bending oil pipe assembly has a strict wrapping layer wrapped on the outside of the oil pipe body, and uses the wrapping layer to protect the outer surface of the oil pipe body, thereby avoiding friction between the outer wall of the oil pipe body and the surrounding environment, thereby greatly increasing the service life of the oil pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is an exploded schematic diagram of the overall structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the oil pipe body in the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the oil pipe body and the outer cladding in the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the oil pipe body and the inner support layer in the utility model;

[0030] Figure 6 It is a schematic diagram of the structure of the outer cladding layer and the inner supporting layer in the utility model;

[0031] Figure 7 It is a cross-sectional schematic diagram of the booster assembly in the utility model.

[0032] The symbols in the figure are:

[0033] 1. Oil pipe body; 2. Outer covering layer; 3. Connector; 4. Inner supporting layer; 5. Horizontal groove; 6. Horizontal bar; 7. Annular protrusion; 8. Annular groove; 9. Connecting end; 10. Sealing groove; 11. Sealing ring; 12. Hole; 13. Booster head; 14. Guide ring; 15. Guide tube; 16. Wrapping layer; 17. End; 18. Positioning protrusion. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0035] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers 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 discussed in subsequent drawings.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0037] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0038] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0039] Embodiment 1:

[0040] See also Figure 1 - Figure 7 As shown, this embodiment provides a wear-resistant and anti-bending oil pipe assembly, including:

[0041] A tubing body 1, an outer cladding 2 is inserted and installed on the outer wall of one end of the tubing body 1, an inner support layer 4 is inserted and installed in the inner cavity of one end of the tubing body 1 close to the outer cladding 2, a plurality of transverse grooves 5 equidistantly distributed in a circumference are provided on the outer wall of the tubing body 1, a plurality of transverse bars 6 matching the plurality of transverse grooves 5 are provided on the circumferential inner wall of the outer cladding 2, the transverse grooves 5 are plugged and matched with the transverse bars 6, a plurality of annular protrusions 7 equidistantly distributed in a linear manner are provided on the circumferential outer wall of the inner support layer 4, an annular groove 8 matching the plurality of annular protrusions 7 is provided on the inner wall of the tubing body 1, and the annular protrusion 7 is rotatably matched with the annular groove 8;

[0042] The connector 3 is arranged on the same side of the outer cladding 2 and the inner supporting layer 4. The outer cladding 2 and the connector 3 are an integrally formed structure. An end 17 is coaxially fixed to the side of the connector 3 away from the oil pipe body 1. Positioning protrusions 18 are symmetrically arranged on the end 17.

[0043] A pressurizing component, which is installed at one end of the inner support layer 4 away from the connector 3 and is used to pressurize the liquid flowing through the inner cavity of the oil pipe body 1;

[0044] In this embodiment, the booster assembly includes:

[0045] The booster head 13 is a hollow tubular structure. A guide ring 14 is arranged inside the booster head 13. The guide ring 14 is a hollow truncated cone structure. The booster head 13 and the guide ring 14 are an integrally formed structure. A flow guide pipe 15 coaxially connected to the guide ring 14 is arranged inside the booster head 13. The booster head 13 is provided with an external thread. An inner cavity of the inner support layer 4 at one end away from the connector 3 is provided with an internal thread. The booster head 13 is threadedly connected to the inner support layer 4.

[0046] In this embodiment, it also includes:

[0047] The outer surface of the oil pipe body 1 is covered with a wrapping layer 16 .

[0048] Among them, the principle of this device during installation is as follows:

[0049] First, tighten the booster assembly on one end of the inner support layer 4. After completion, insert the inner support layer 4 together with the booster assembly into the inner cavity of the oil pipe body 1 until the outer wall of the connecting end 9 is flush with the cross-sectional side wall of the oil pipe body 1. Then the operator inserts the outer cladding 2 towards the outer wall of the oil pipe body 1 until one end of the oil pipe body 1 completely rests against the inner wall of the connecting head 3. Then the operator inserts the hexagon socket bolt into the screw hole 12 and rotates it. Under the action of the thread force, the inner support layer 4 is fixedly connected with the connecting head 3 and the outer cladding 2 through the connecting end 9. At this time, under the joint action of multiple annular protrusions 7 and cross bars 6, the oil pipe body 1 cannot rotate or slide in the interlayer formed by the outer cladding 2 and the inner support layer 4. When in use, only the two positioning protrusions 18 on the end head 17 need to be aligned with the positioning holes on the port at the wiring point, and then fixed by tightening the bolts. When the oil is transported through the oil pipe body 1, the oil flows from the large opening of the guide ring 14 to the small opening, and the flow rate increases and the pressure increases, thereby ensuring the strong and effective transportation of the oil by the device.

[0050] By setting an outer cladding layer 2 and an inner supporting layer 4, and utilizing the cooperation of multiple transverse grooves 5 and transverse bars 6 as well as multiple annular protrusions 7 and annular grooves 8, the oil pipe body 1 cannot rotate or slide in the interlayer formed by the outer cladding layer 2 and the inner supporting layer 4, thereby improving the disadvantage that the tubular part of the traditional oil pipe assembly is easily separated from the assembly end. In addition, by setting an inner supporting layer 4 in the inner cavity of the oil pipe body 1, the multi-stage distributed annular protrusions 7 on the inner supporting layer 4 are utilized to increase the lateral bearing stress of the inner supporting layer 4, thereby preventing the main body of the device from being easily bent after long-term use. By coating the outer side of the oil pipe body 1 with a tight wrapping layer 16, the wrapping layer 16 is utilized to protect the outer surface of the oil pipe body 1, thereby preventing the outer wall of the oil pipe body 1 from rubbing against the surrounding environment, thereby greatly increasing the service life of the oil pipe body 1.

[0051] Embodiment 2:

[0052] The present embodiment provides a wear-resistant and anti-bending oil pipe assembly. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: a connecting end 9 is provided at one end of the inner supporting layer 4 close to the connecting head 3, an external thread is provided on the circumferential outer wall of the connecting end 9, an internal thread is provided on the circumferential inner wall of the connecting head 3, and the connecting end 9 is threadedly connected to the connecting head 3.

[0053] Wherein, by providing the connection end 9 and arranging a thread on the connection end 9 , the inner support layer 4 is conveniently fixed to the connection head 3 .

[0054] Embodiment 3:

[0055] This embodiment provides a wear-resistant and anti-bending oil pipe assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features: a spiral hole 12 is provided on the inner cavity wall of one end of the connecting end 9 close to the connecting head 3.

[0056] The provision of the rotation hole 12 facilitates the operator to rotate the inner support layer 4 so that the inner support layer 4 and the connector 3 are fixed.

[0057] Embodiment 4:

[0058] This embodiment provides a wear-resistant and anti-bending oil pipe assembly. In addition to the technical solutions of the above embodiments, it also has the following technical features: a sealing groove 10 is opened on the surface of one side of the oil pipe body 1 close to the connecting head 3, and a sealing ring 11 is placed in the sealing groove 10, and the oil pipe body 1 is tightly fitted with the inner surface of the connecting head 3.

[0059] The sealing groove 10 and the sealing ring 11 are provided to increase the air tightness between the oil pipe body 1 and the connector 3, thereby preventing the oil in the inner cavity of the oil pipe body 1 from leaking and improving the sealing performance of the device.

[0060] Embodiment 5:

[0061] This embodiment provides a wear-resistant and anti-bending oil pipe assembly, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the circumferential outer wall of the oil pipe body 1 and the circumferential inner wall of the oil pipe body 1 are tightly fitted with the inner wall of the outer cladding 2 and the outer wall of the inner support layer 4 respectively.

[0062] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. Wear-resistant and anti-bending oil pipe assembly, characterized in that: include: An oil pipe body (1), wherein an outer cladding layer (2) is inserted and installed on the outer wall of one end of the oil pipe body (1), an inner support layer (4) is inserted and installed in the inner cavity of one end of the oil pipe body (1) close to the outer cladding layer (2), a plurality of transverse grooves (5) distributed equidistantly around the circumference are provided on the outer wall of the oil pipe body (1), a plurality of transverse bars (6) matching the plurality of transverse grooves (5) are provided on the circumferential inner wall of the outer cladding layer (2), the transverse grooves (5) and the transverse bars (6) are inserted and matched, a plurality of annular protrusions (7) distributed linearly equidistantly are provided on the circumferential outer wall of the inner support layer (4), an annular groove (8) matching the plurality of annular protrusions (7) is provided on the inner wall of the oil pipe body (1), the annular protrusion (7) and the annular groove (8) are rotatably matched; A connector (3), the connector (3) being arranged on the same side of the outer cladding (2) and the inner supporting layer (4), the outer cladding (2) and the connector (3) being an integrally formed structure, an end (17) being coaxially fixed to a side of the connector (3) away from the oil pipe body (1), and positioning protrusions (18) being symmetrically arranged on the end (17); A pressure boosting component is installed at an end of the inner support layer (4) away from the connector (3) and is used to boost the pressure of liquid flowing through the inner cavity of the oil pipe body (1).

2. The wear-resistant and anti-bending oil pipe assembly according to claim 1 is characterized in that: A connecting end (9) is provided at one end of the inner supporting layer (4) close to the connecting head (3); an external thread is provided on the circumferential outer wall of the connecting end (9); an internal thread is provided on the circumferential inner wall of the connecting head (3); and the connecting end (9) is threadedly connected to the connecting head (3).

3. The wear-resistant and anti-bending oil pipe assembly according to claim 2 is characterized in that: A screw hole (12) is provided on the inner cavity wall of one end of the connection end (9) close to the connection head (3).

4. The wear-resistant and anti-bending oil pipe assembly according to claim 1 is characterized in that: A sealing groove (10) is provided on a surface of one side of the oil pipe body (1) close to the connector (3), a sealing ring (11) is placed in the sealing groove (10), and the oil pipe body (1) is tightly fitted to the inner surface of the connector (3).

5. The wear-resistant and anti-bending oil pipe assembly according to claim 1 is characterized in that: The circumferential outer wall of the oil pipe body (1) and the circumferential inner wall of the oil pipe body (1) are respectively tightly fitted with the inner wall of the outer cladding layer (2) and the outer wall of the inner support layer (4).

6. The wear-resistant and anti-bending oil pipe assembly according to claim 1, characterized in that: The booster assembly comprises: A boost head (13), the boost head (13) being a hollow tubular structure, a guide ring (14) being arranged inside the boost head (13), the guide ring (14) being a hollow truncated cone structure, the boost head (13) and the guide ring (14) being an integrally formed structure, a flow guide tube (15) being arranged inside the boost head (13) and being coaxially connected to the guide ring (14), the boost head (13) being provided with an external thread, an inner cavity of an end of the inner support layer (4) away from the connecting head (3) being provided with an internal thread, and the boost head (13) being threadedly connected to the inner support layer (4).

7. The wear-resistant and anti-bending oil pipe assembly according to claim 1 is characterized in that: The outer surface of the oil pipe body (1) is covered with a wrapping layer (16).

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