Tubular structure
By setting a flange structure at both ends of the bushing that folds to the inside or outside of the pipe body, the problem of bushing separation from the pipe body is solved, and the stability of sealing and protection effect is achieved, making it suitable for various pipeline connection needs.
Patent Information
- Application Number
- CN202520067332.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Existing pipe fitting bushings are prone to separating from the pipe body after repeated disassembly and assembly or under high temperature and high pressure conditions, resulting in failure of sealing and protection effects.
Flanged structures are provided at both ends of the bushing, which fold into the inner or outer side of the tube body. The flanges form a tight connection with the tube body, enhancing the bonding strength between the bushing and the tube body.
It effectively prevents the bushing from separating from the tube body, ensures sealing and protection, extends the service life of the tube body, and can compensate for manufacturing and assembly errors.
Smart Images
Figure CN223708868U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pipeline connection technical field especially relates to a tubular structure. BACKGROUND
[0002] In the pipeline system, two adjacent pipelines are usually connected by a pipe joint, and in order to ensure the sealing, a bushing is usually provided on the pipe joint. Specifically, one way is to insert both ends of the pipe joint into two pipelines, and the bushing is sleeved on the outside of the pipe joint; another way is to insert two pipelines into both ends of the pipe joint, and the bushing is sleeved on the inside of the pipe joint.
[0003] However, the two ends of the bushing are usually flush with the two ends of the pipe joint, and in actual application, it is found that when the pipe body is disassembled and assembled for many times, or the temperature and pressure of the fluid conveyed in the pipe body are high, the bushing is easily separated from the pipe body, resulting in failure of the protection or sealing function of the bushing. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a tubular structure which can avoid separation of the bushing from the pipe body.
[0005] To achieve the above-mentioned purpose, the following technical solutions are provided:
[0006] The tubular structure comprises a pipe body and:
[0007] The bushing can be elastically deformed;
[0008] The bushing is sleeved on the outside of the pipe body, and both ends of the bushing are provided with a folded edge folded to the inner circumferential wall of the pipe body; or,
[0009] The pipe body is sleeved on the outside of the bushing, and both ends of the bushing are provided with a folded edge folded to the outer circumferential wall of the pipe body.
[0010] As a preferred technical solution of the above-mentioned tubular structure, the folded edge is an integral structure extending along the circumference of the bushing and connected end to end.
[0011] As a preferred technical solution of the above-mentioned tubular structure, when the bushing is sleeved on the outside of the pipe body, the inner circumferential wall of the pipe body is provided with a groove, and the folded edge folded to the inner circumferential wall of the pipe body is arranged in the groove; or,
[0012] When the pipe body is sleeved on the outside of the bushing, the outer circumferential wall of the pipe body is provided with a groove, and the folded edge folded to the outer circumferential wall of the pipe body is arranged in the groove.
[0013] As a preferred technical scheme of the tubular structure, the flange comprises a bending part and a flanging part, the bending part abuts against an end face of one end of the pipe body, and the flanging part and the bushing are connected to two ends of the bending part respectively.
[0014] In the radial direction of the pipe body, the thickness of the flanging part is d1, and the depth of the groove is H, and d1≤H.
[0015] As a preferred technical scheme of the tubular structure, the flange comprises a bending part and a flanging part, the bending part abuts against an end face of one end of the pipe body, and the flanging part and the bushing are connected to two ends of the bending part respectively.
[0016] In the axial direction of the pipe body, the thickness of the bending part is d2, and the spacing between one end of the flanging part away from the bending part and the bending part is L, and d2
[0017] As a preferred technical scheme of the tubular structure, the thickness of the flange is less than the thickness of the bushing.
[0018] As a preferred technical scheme of the tubular structure, the tubular structure comprises a first pipe segment and a second pipe segment connected to the first pipe segment, the axis of the first pipe segment coincides with the axis of the second pipe segment, or the axis of the first pipe segment is arranged at an angle with the axis of the second pipe segment.
[0019] As a preferred technical scheme of the tubular structure, the bushing is sleeved outside the pipe body, and the outer peripheral wall of the bushing is provided with protrusions extending along the circumference of the bushing and connected in a head-to-tail manner; or,
[0020] The pipe body is sleeved outside the bushing, and the inner peripheral wall of the bushing is provided with protrusions extending along the circumference of the bushing and connected in a head-to-tail manner.
[0021] As a preferred technical scheme of the tubular structure, the protrusions are provided in plurality, and the plurality of protrusions are arranged in sequence in the axial direction of the bushing.
[0022] As a preferred technical scheme of the tubular structure, the plurality of protrusions comprise first protrusions and second protrusions, and the first protrusions and the second protrusions are respectively located at two ends in the axial direction of the bushing.
[0023] As a preferred technical scheme of the tubular structure, the inside of the protrusion is provided with cavities extending along the protrusion and connected in a head-to-tail manner.
[0024] Compared with the prior art, the tubular structure has the beneficial effects that:
[0025] The tubular structure of the utility model discloses, when the bushing is set on the outside of the pipe body, through setting the flanging that turns over to the inside of the pipe body on both ends of the bushing, can avoid the joint of the bushing and the pipe body from being impacted by fluid, also can avoid the pipe colliding with the joint of the bushing and the pipe body when the pipe and the tubular structure are plugged, further avoid the bushing and the pipe body from separating, when the pipe body is set on the outside of the bushing, through setting the flanging that turns over to the outside of the pipe body on both ends of the bushing, can avoid the pipe colliding with the joint of the bushing and the pipe body when the pipe and the tubular structure are plugged, further avoid the bushing and the pipe body from separating, to guarantee the protection effect and sealing effect of the bushing to the pipe body. BRIEF DESCRIPTION OF DRAWINGS
[0026] Fig. 1 It is the sectional view of the tubular structure in the utility model embodiment one;
[0027] Fig. 2 It is the partial sectional view of the tubular structure in the utility model embodiment one.
[0028] REFERENCE NUMERALS:
[0029] 1, pipe body;11, recess;2, bushing;21, flanging;211, bending part;212, flanging part;22, protrusion. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be described clearly and completely below with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. The components of the utility model embodiment described and shown in the drawings here can be arranged and designed in various different configurations.
[0031] Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.
[0032] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0037] Example 1
[0038] like Figs. 1-2 As shown, this embodiment provides a tubular structure, including a tube body 1 and a bushing 2. The bushing 2 is capable of elastic deformation. The bushing 2 is sleeved on the outside of the tube body 1. Both ends of the bushing 2 are provided with flanges 21 that are folded to the inner peripheral wall of the tube body 1.
[0039] The tubular structure of the embodiment can be used to transport gas or liquid. In use, the two ends of the tubular structure are respectively inserted into two pipelines, so that the two pipelines are connected through the tubular structure, at this time, the bushing 2 is clamped between the inner circumferential wall of the pipeline and the outer circumferential wall of the pipe body 1 to achieve sealing. The provision of the flange 21 not only avoids the impact of fluid on the joint of the bushing 2 and the pipe body 1, but also avoids the impact of the pipeline on the joint of the bushing 2 and the pipe body 1 when the pipeline is inserted into the tubular structure, thereby avoiding the separation of the bushing 2 and the pipe body 1, so as to ensure the protection and sealing effect of the bushing 2 on the pipe body 1.
[0040] The bushing 2 is sleeved on the outside of the pipe body 1, and can also protect the pipe body 1 through the bushing 2 to avoid corrosion and damage of the external environment to the pipe body 1, thereby prolonging the service life of the pipe body 1.
[0041] It should be noted that due to manufacturing and assembly errors, after the pipeline is assembled, the two pipelines may not be concentric. The tubular structure of the embodiment can connect two different concentric pipelines, and the bushing 2 can also decouple the manufacturing and assembly errors.
[0042] It can be understood that the length of the tubular structure in the axial direction can be small so that the tubular structure is used as a pipe joint, or the length of the tubular structure in the axial direction can be large so that the tubular structure is used as a normal pipeline.
[0043] In some embodiments, the tubular structure includes a first pipe segment and a second pipe segment connected to the first pipe segment, and the axis of the first pipe segment coincides with the axis of the second pipe segment, that is, the tubular structure is a straight pipe structure. In other embodiments, the axis of the first pipe segment can also be arranged at an angle to the axis of the second pipe segment, that is, the tubular structure is a bend structure, thereby realizing the turning of the pipeline and meeting various needs.
[0044] In some embodiments, the inner circumferential wall of the pipe body 1 is provided with a groove 11, and the flange 21 folded to the inner circumferential wall of the pipe body 1 is arranged in the groove 11, thereby avoiding the flange 21 from excessively protruding from the inner circumferential wall of the pipe body 1, reducing the force exerted by the fluid on the flange 21, and facilitating the prevention of the flange 21 from peeling off from the pipe body 1.
[0045] In some embodiments, the flange 21 includes a bending portion 211 and a folding portion 212, the bending portion 211 abuts against the end face of one end of the pipe body 1, and the folding portion 212 and the bushing 2 are respectively connected to the two ends of the bending portion 211; in the radial direction of the pipe body 1, the thickness of the folding portion 212 is d1, and the depth of the groove 11 is H, d1≤H, thereby further reducing the force exerted by the fluid on the flange 21 and preventing the flange 21 from peeling off from the pipe body 1.
[0046] In some embodiments, the thickness of the bending portion 211 is d2, the distance between the edge folding portion 212 and the bending portion 211 is L, and d2 < L, so that the contact area between the edge folding portion 21 and the pipe body 1 is increased, and the connection stability between the edge folding portion 21 and the pipe body 1 is improved.
[0047] In some embodiments, the thickness of the edge folding portion 21 is less than the thickness of the bushing 2, so that the edge folding portion 21 is closely attached to the pipe body 1, and the edge folding portion 21 is prevented from being raised.
[0048] Specifically, d1 = d2, that is, the thickness of the edge folding portion 21 at different positions is the same. In this way, on the one hand, the process is good, and the edge folding portion 21 is easy to form, and on the other hand, the edge folding portion 21 is prevented from being raised, and the connection stability between the edge folding portion 21 and the pipe body 1 is improved.
[0049] In some embodiments, the outer peripheral wall of the bushing 2 is provided with a protrusion 22 extending along the circumference of the bushing 2 and connected end to end. When the pipe body 1 is inserted into the pipeline, the inner peripheral wall of the pipeline can be tightly pressed by the protrusion 22, and the sealing effect is improved.
[0050] In some embodiments, the protrusion 22 is provided with a plurality of protrusions 22, and the plurality of protrusions 22 are arranged in sequence along the axis of the bushing 2. The plurality of protrusions 22 achieve multi-stage sealing, and the sealing effect is better.
[0051] In some embodiments, the plurality of protrusions 22 include a first protrusion and a second protrusion, and the first protrusion and the second protrusion are respectively located at both ends of the axis of the bushing 2. When the pipe body 1 is connected to two pipelines, the pipe body 1 is sealed with the two pipelines.
[0052] In some embodiments, the inside of the protrusion 22 is provided with a cavity extending along the protrusion 22 and connected end to end. In this way, the protrusion 22 is deformed to achieve sealing, which is easy to assemble and has a better sealing effect.
[0053] It should be noted that the edge folding portion 21 and the protrusion 22 are integrally formed on the bushing 2, and the edge folding portion 21, the protrusion 22 and the bushing 2 are made of the same material.
[0054] Specifically, the bushing 2 is made of rubber. For example, the rubber is integrally formed on the pipe body 1 by vulcanization process, that is, the bushing 2 is attached to the surface of the pipe body 1, so that the connection stability between the bushing 2 and the pipe body 1 is improved, and the bushing 2 is prevented from being peeled off from the pipe body 1.
[0055] Specifically, the pipe body 1 is made of metal, and has a long service life.
[0056] Embodiment two
[0057] The embodiment provides a tubular structure, which comprises a pipe body and a bushing capable of being elastically deformed, the pipe body is sleeved outside the bushing, and the two ends of the bushing are each provided with a flange folded to the outer peripheral wall of the pipe body.
[0058] The tubular structure of the embodiment can be used for conveying gas or liquid. The pipe body is sleeved outside the bushing, and the bushing can protect the inner peripheral wall of the pipe body to avoid damage such as corrosion of the conveyed gas or liquid to the pipe body.
[0059] In use, two pipes are inserted into the two ends of the tubular structure, and the two pipes are connected through the tubular structure. At this time, the bushing is clamped between the outer peripheral wall of the pipe and the inner peripheral wall of the pipe body, and sealing is achieved. The flange can avoid the pipe colliding with the joint of the bushing and the pipe body when the pipe is inserted into the tubular structure, thereby avoiding the separation of the bushing and the pipe body, so as to ensure the protection of the bushing to the pipe body and the sealing effect.
[0060] It should be noted that due to manufacturing and assembly errors, after the pipe is assembled, the two pipes may not be concentric. The tubular structure of the embodiment can connect two eccentric pipes, and the bushing can also decouple the manufacturing and assembly errors.
[0061] It can be understood that the length of the tubular structure in the axial direction can be small, so that the tubular structure is used as a pipe joint, or the length of the tubular structure in the axial direction can be large, so that the tubular structure is used as a normal pipe.
[0062] In some embodiments, the tubular structure comprises a first pipe segment and a second pipe segment connected to the first pipe segment, and the axis of the first pipe segment coincides with the axis of the second pipe segment, that is, the tubular structure is a straight pipe structure. In other embodiments, the axis of the first pipe segment can also be arranged at an angle to the axis of the second pipe segment, that is, the tubular structure is a bend structure, thereby realizing the turning of the pipe and meeting various needs.
[0063] In some embodiments, the outer peripheral wall of the pipe body is provided with a groove, and the flange folded to the outer peripheral wall of the pipe body is arranged in the groove, thereby avoiding the flange excessively protruding from the outer peripheral wall of the pipe body, reducing the risk of collision between the flange and structures in the external environment, and being beneficial to preventing the flange from peeling off from the pipe body.
[0064] In some embodiments, the flange comprises a bending part and a folding part, the bending part abuts against the end face of one end of the pipe body, and the folding part and the bushing are respectively connected to the two ends of the bending part; along the radial direction of the pipe body, the thickness of the folding part is d1, and the depth of the groove is H, and d1≤H, thereby further reducing the risk of collision between the flange and structures in the external environment and preventing the flange from peeling off from the pipe body.
[0065] In some embodiments, the thickness of the bent portion is d2 along the axial direction of the pipe body, the distance between the end of the bent portion away from the bent portion and the bent portion is L, and d2 < L, thereby increasing the contact area of the turned edge and the pipe body and improving the connection stability of the turned edge and the pipe body.
[0066] In some embodiments, the thickness of the turned edge is less than the thickness of the bushing, thereby facilitating the close fit of the turned edge to the pipe body and avoiding the turned edge from being raised.
[0067] Specifically, d1 = d2, which is beneficial to the process and the forming of the turned edge, and is conducive to avoiding the turned edge from being raised and improving the connection stability of the turned edge and the pipe body.
[0068] In some embodiments, the inner circumferential wall of the bushing is provided with protrusions extending along the circumferential direction of the bushing and connected end to end. When the pipe is inserted into the pipe body, the protrusions can abut against the outer circumferential wall of the pipe to improve the sealing effect.
[0069] In some embodiments, the protrusions are provided in multiple numbers, and the multiple protrusions are arranged in sequence along the axial direction of the bushing, thereby achieving multi-stage sealing through the multiple protrusions and achieving better sealing effect.
[0070] In some embodiments, the multiple protrusions include first protrusions and second protrusions, and the first protrusions and the second protrusions are respectively located at both ends of the axial direction of the bushing. When the pipe body is used to connect two pipes, the pipe body can be sealed with the two pipes.
[0071] In some embodiments, the inside of the protrusion is provided with cavities extending along the protrusion and connected end to end, thereby facilitating the deformation of the protrusion to achieve sealing, which is not only convenient for assembly but also has better sealing effect.
[0072] It should be noted that the turned edge and the protrusion are integrally formed on the bushing, and the turned edge, the protrusion and the bushing are made of the same material.
[0073] Specifically, the bushing is made of rubber. Exemplarily, the rubber is integrally formed on the pipe body through a vulcanization process, that is, the bushing is attached to the surface of the pipe body, thereby improving the connection stability of the bushing and the pipe body and avoiding the bushing from peeling off the pipe body.
[0074] Specifically, the pipe body is made of metal, which has a long service life.
[0075] It should be noted that the above only the preferred embodiments of the present application and the use of technical principles. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, those skilled in the art can make various obvious changes, re-adjustment and replacement without departing from the scope of the present application. Therefore, although the above embodiments of the present application has been described in more detail, but the present application is not limited to the above examples, without departing from the concept of the present application, but also can include more other equivalent embodiments, and the scope of the present application is determined by the appended claims.
Claims
1. A tubular structure, characterized in that, The tubular structure comprises a pipe body and a bushing, and the bushing is capable of being elastically deformed. The bushing is sleeved outside the pipe body, and both ends of the bushing are provided with flanges which are folded to the inner circumferential wall of the pipe body; or The pipe body is sleeved outside the bushing, and both ends of the bushing are provided with flanges which are folded to the outer circumferential wall of the pipe body. The flange is an integral structure which extends along the circumference of the bushing and is connected end to end.
2. The tubular structure of claim 1, wherein, When the bushing is sleeved outside the pipe body, the inner circumferential wall of the pipe body is provided with a groove, and the flange folded to the inner circumferential wall of the pipe body is arranged in the groove; or 3. The tubular structure of claim 1, wherein, When the pipe body is sleeved outside the bushing, the outer circumferential wall of the pipe body is provided with a groove, and the flange folded to the outer circumferential wall of the pipe body is arranged in the groove. The flange comprises a bending part and a folding part, the bending part abuts against the end face of one end of the pipe body, and the folding part and the bushing are respectively connected to both ends of the bending part.
4. The tubular structure of claim 3, wherein, Along the radial direction of the pipe body, the thickness of the folding part is d1, and the depth of the groove is H, d1≤H. The flange comprises a bending part and a folding part, the bending part abuts against the end face of one end of the pipe body, and the folding part and the bushing are respectively connected to both ends of the bending part.
5. The tubular structure of claim 1, wherein, Along the axial direction of the pipe body, the thickness of the bending part is d2, and the distance between the end of the folding part away from the bending part and the bending part is L, d2 The thickness of the flange is less than the thickness of the bushing.
6. The tubular structure of claim 1, wherein, The tubular structure comprises a first pipe segment and a second pipe segment connected to the first pipe segment, the axis of the first pipe segment coincides with the axis of the second pipe segment, or the axis of the first pipe segment is arranged at an angle with the axis of the second pipe segment.
7. The tubular structure of claim 1, wherein, The bushing is sleeved outside the pipe body, and the outer circumferential wall of the bushing is provided with protrusions which extend along the circumference of the bushing and are connected end to end; or 8. The tubular structure according to any one of claims 1-7, characterized in that, The pipe body is sleeved outside the bushing, and the inner circumferential wall of the bushing is provided with protrusions which extend along the circumference of the bushing and are connected end to end. The protrusions are arranged in sequence along the axial direction of the bushing.
9. The tubular structure of claim 8, wherein, The protrusions comprise first protrusions and second protrusions, and the first protrusions and the second protrusions are respectively located at both ends of the axial direction of the bushing.
10. The tubular structure of claim 9, wherein, The inside of the protrusion is provided with a cavity which extends along the protrusion and is connected end to end.
11. The tubular structure of claim 8, wherein,