Pipeline joint and quick buckling tool for pipeline joint
Through thermal expansion process and anti-detachment design, combined with the pipeline joints, the complex assembly of plastic pipes and metal lined pipes in automotive turbocharger systems is solved, and efficient and low-cost assembly and anti-detachment effect is achieved.
Patent Information
- Application Number
- CN202422267472.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-14
AI Technical Summary
In the prior art, the assembly process of plastic pipes and metal lined pipes in automotive turbocharger systems is complicated, complicated, low efficiency and high cost, and the assembled pipeline joints are prone to fall off due to water absorption.
The thermal expansion process is used to form the plastic pipe body outside the metal lined pipe, and an anti-protrusion table is set at one end of the metal lined pipe, and the pipe joint is quickly buckled, and the box body and buckle assembly are used to achieve rapid assembly of the metal lined pipe.
It simplifies the assembly process, reduces costs, improves assembly efficiency, and effectively prevents the metal lined pipe from falling out of the plastic pipe body, improving the performance of the vehicle.
Smart Images
Figure CN223131407U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline systems, in particular to a pipeline joint and a rapid clamping tooling for pipeline joints. Background Art
[0002] Currently, in the field of automobile manufacturing, the requirements for various performance tests of automobile turbocharging systems are becoming increasingly strict, and the temperature in the turbocharging system also rises accordingly. However, currently, plastic pipes produced by blow injection molding are commonly used in automobile turbocharging systems. Before connecting them to rubber hoses, a metal inner lining pipe needs to be installed inside the plastic pipe, and then clamped by a clamp. By adding a metal inner lining pipe to the plastic pipeline for internal support, it can prevent the pipeline from deforming due to excessive temperature during the sports car of the turbocharging system, thus affecting the overall vehicle performance.
[0003] Currently, the technological process of assembling the metal inner lining pipe inside the plastic pipe mainly includes forming, cutting, boring, and assembling. After the plastic pipeline is formed, the material heads at both ends of the plastic pipe are cut, and then the ports of the plastic pipeline are bored until their diameters reach the outer diameter of the metal inner lining pipe, and then the metal inner lining pipe is pressed into the plastic pipe through a special assembly tooling. Such a process is cumbersome, complex, inefficient, and costly. Moreover, over time, the inner diameter of the plastic pipe port will expand after the assembled pipeline joint absorbs water, resulting in the detachment of the metal inner lining pipe. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a pipeline joint and a rapid clamping tooling for pipeline joints to alleviate the above technical problems.
[0005] To achieve the above purpose, the embodiments of the utility model adopt the following technical solutions:
[0006] In a first aspect, the embodiments of the utility model provide a pipeline joint, including a plastic pipe body and a metal inner lining pipe; an anti-detachment boss protruding radially outward along the metal inner lining pipe is provided on the outer peripheral surface of one axial end of the metal inner lining pipe, and one end of the plastic pipe body is thermally formed outside the metal inner lining pipe.
[0007] The pipeline joint provided by the embodiments of the utility model can at least achieve the following beneficial effects:
[0008] The hot expansion process is a technology that uses the property of materials to expand when heated to achieve part forming. In this process, the material is heated to a certain temperature, and then its thermal expansion is used to adapt to the shape of the mold, and then it is fixed in shape by cooling.
[0009] In the embodiment of the present utility model, one end of the plastic pipe body is thermally expanded and formed outside the metal inner lining pipe, which means that after the plastic pipe body is heated and expanded, it is sleeved outside the metal inner lining pipe and then cooled and formed outside the metal inner lining pipe. Since the outer peripheral surface of one axial end of the metal inner lining pipe provided in the embodiment of the present utility model is provided with an anti - detachment boss, thus, during the gradual cooling process of the plastic pipe body, the shape of the inner peripheral surface can adapt to the anti - detachment boss. That is, after being completely cooled, a groove corresponding to and engaging with the anti - detachment boss will be formed on the inner peripheral surface of the plastic pipe body. The anti - detachment boss and the groove that are tightly engaged are used to achieve a combined structure for preventing the metal inner lining pipe from detaching from the plastic pipe body.
[0010] The assembly process of the pipeline joint structure provided in the embodiment of the present utility model does not require cutting and boring the head end of the plastic pipe. Compared with the prior art, the assembly is simpler, the cost is lower, and the assembly efficiency is higher.
[0011] For the pipeline joint provided in the embodiment of the present utility model, optionally, the metal inner lining pipe includes a straight pipe section and an expanded - diameter pipe section that are connected to each other. The outer diameter of the expanded - diameter pipe section gradually increases from one end close to the straight pipe section to the end away from the straight pipe section, so that the outer surface of the expanded - diameter pipe section forms the anti - detachment boss.
[0012] In addition, the second aspect of the embodiment of the present utility model further provides a rapid buckling tooling for a pipeline joint, which is used to assemble the pipeline joint provided in any optional implementation manner of the first aspect; the rapid buckling tooling for the pipeline joint includes a box body and at least one set of buckling components installed inside the box body; wherein, the top surface of the box body is provided with a box - body opening; each set of the buckling components respectively includes an outer shell and an inner shell; the outer shell includes a bottom wall and a peripheral wall, and its top is provided with a shell opening that is vertically communicated with the box - body opening; the inner shell is fixedly connected inside the outer shell, and there is a buckling interval between the outer peripheral surface of the inner shell and the inner peripheral surface of the outer shell.
[0013] In the embodiment of the present utility model, optionally, a first screw hole is provided in the central area of the top surface of the inner shell, and the inner shell and the outer shell are fixed together by screws passing through the first screw hole.
[0014] In the embodiment of the present utility model, optionally, a fluid through - hole penetrating the peripheral wall is provided on the peripheral wall of the outer shell.
[0015] In the embodiment of the present utility model, optionally, a limiting protrusion for limiting the metal inner lining pipe is provided at a position on the outer peripheral surface of the inner shell close to the bottom wall of the outer shell.
[0016] In the embodiment of the present utility model, optionally, a positioning magnet for positioning the metal inner lining pipe is further provided on the outer peripheral surface of the inner shell.
[0017] In an embodiment of the present utility model, optionally, the inner housing includes an upper cylinder and a lower cylinder connected to each other, the diameter of the lower cylinder is greater than that of the upper cylinder, and the outer peripheral surface of the upper cylinder and the outer peripheral surface of the lower cylinder are transitionally connected through an arc surface.
[0018] In an embodiment of the present utility model, optionally, the inner peripheral surface of the opening of the housing and / or the inner peripheral surface of the opening of the box body form an arc-shaped chamfer surface, where "and / or" means that among the inner peripheral surface of the opening of the housing and the inner peripheral surface of the opening of the box body, both or selectively are designed as an arc-shaped chamfer surface as the guiding surface during buckling.
[0019] In an embodiment of the present utility model, optionally, at least one support seat corresponding to the buckling assembly is provided inside the box body, and the outer housing is fixedly installed on the support seat.
[0020] The quick buckling tooling for pipeline joints provided by the embodiment of the present utility model has a simple structure and simple operation, which is beneficial to quickly buckle a metal inner lining pipe inside a plastic pipe. For the specific operation method, refer to the relevant description in the specific implementation part of this specification. Description of the Drawings
[0021] In order to more clearly illustrate the specific implementation manners of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific implementation manners or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0022] Figure 1 It is an assembly schematic diagram of a pipeline joint and a quick buckling tooling for pipeline joints provided by an embodiment of the present utility model;
[0023] Figure 2 For Figure 1 explosion schematic Figure 1 ;
[0024] Figure 3 For Figure 1 explosion schematic Figure 2 ;
[0025] Figure 4 For Figure 1 and Figure 2 is a partial schematic diagram of the assembly relationship between the pipeline joint and the buckling assembly in
[0026] Figure 5 For Figure 4 axial sectional view of the structure shown;
[0027] Figure 6 ForFigure 4 Explosion schematic diagram of the shown structure
[0028] Figure 7 In the pipeline joint provided by the embodiment of the present utility model, it is the axial sectional view of the metal inner lining pipe
[0029] Icon: 1 - plastic pipe body; 2 - metal inner lining pipe; 21 - straight pipe section; 22 - enlarged diameter pipe section; 3 - box body; 31 - box body opening; 4 - clamping component; 41 - outer shell body; 411 - shell body opening; 412 - fluid through hole; 42 - inner shell body; 4201 - upper cylinder; 4202 - lower cylinder; 421 - first screw hole; 422 - limiting protrusion; 423 - positioning magnet Detailed implementation manners
[0030] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations
[0031] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model
[0032] It should be noted that: similar reference numerals and letters indicate similar items in the accompanying drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings
[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed when in use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance
[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0035] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0036] Reference Figures 1 to 7 In the first aspect of this embodiment, a pipe joint is provided, which includes a plastic pipe body 1 and a metal liner pipe 2; wherein, the outer peripheral surface of one axial end of the metal liner pipe 2 is provided with an anti-slip boss protruding radially outward along the metal liner pipe 2, and one end of the plastic pipe body 1 is heat-expanded and formed on the outside of the metal liner pipe 2.
[0037] The pipe joint provided in this embodiment can at least achieve the following beneficial effects:
[0038] The thermal expansion process is a technology that uses the material's property of expanding when heated to achieve part forming. In this process, the material is heated to a certain temperature, and then thermal expansion is used to adapt it to the shape of the mold, and then it is fixed in shape by cooling.
[0039] In the present embodiment, one end of the plastic tube body 1 is heat-expanded and formed on the outside of the metal liner tube 2, which means that the plastic tube body 1 is expanded by heat and then sleeved on the outside of the metal liner tube 2 and then cooled and formed on the outside of the metal liner tube 2. Since the outer peripheral surface of one axial end of the metal liner tube 2 provided in the present embodiment is provided with an anti-slip boss, the shape of the inner peripheral surface of the plastic tube body 1 can adapt to the anti-slip boss during the gradual cooling process. That is, after complete cooling, the inner peripheral surface of the plastic tube body 1 will form a groove body corresponding to the anti-slip boss. The tightly fitted anti-slip boss and groove body can prevent the metal liner tube 2 from detaching from the plastic tube body 1.
[0040] The assembly process of the pipe joint structure provided in this embodiment does not require cutting and boring the head end of the plastic pipe, and compared with the prior art, the assembly is simpler, the cost is lower, and the assembly efficiency is higher.
[0041] In the pipe joint provided in this embodiment, the anti-drop boss on the outer wall of the metal liner pipe 2 can be a protruding structure provided on the outer surface of the pipe wall, or can be other structures. For ease of manufacturing, preferably, Figure 7As shown, the metal inner liner tube 2 includes a straight tube section 21 and an enlarged diameter tube section 22 that are connected to each other. The outer diameter of the enlarged diameter tube section 22 gradually increases from one end close to the straight tube section 21 to the end away from the straight tube section 21, so that the outer surface of the enlarged diameter tube section 22 forms the above-mentioned anti-disconnection boss. The wall thickness of the enlarged diameter tube section 22 can be equal to or equivalent to the wall thickness of the straight tube section 21 or greater than that of the straight tube section 21.
[0042] In addition, in the second aspect of the embodiments of the present invention, a rapid crimping tooling for a pipeline joint is further provided, which is used to assemble the pipeline joint provided by any optional implementation manner of the first aspect described above; referring to Figures 1 to 6 , the rapid crimping tooling for the pipeline joint includes a box body 3 and at least one set of crimping components 4 installed inside the box body 3; wherein, a box body opening 31 is provided on the top surface of the box body 3; each set of crimping components 4 respectively includes an outer shell body 41 and an inner shell body 42; the outer shell body 41 includes a bottom wall and a peripheral wall, and a shell body opening 411 that is vertically communicated with the box body opening 31 is provided at the top thereof; the inner shell body 42 is fixedly connected inside the outer shell body 41, and a crimping interval is provided between the outer peripheral surface of the inner shell body 42 and the inner peripheral surface of the outer shell body 41.
[0043] When using the rapid crimping tooling for the pipeline joint to assemble the pipeline joint provided by any optional implementation manner of the first aspect described above, normal temperature water is injected into the box body 3, the metal inner liner tube 2 is inserted into the above-mentioned crimping interval to sleeve outside the inner shell body 42, the pipe orifice of the plastic pipe body 1 is heated and the plastic pipe body 1 is inserted into the above-mentioned crimping interval to sleeve outside the inner shell body 42 while it is hot, and after waiting for the plastic pipe body 1 to cool and take shape, the process of pressing the metal inner liner tube 2 into the plastic pipe body 1 can be completed, and the above-mentioned pipeline joint can be obtained.
[0044] In the embodiments of the present invention, optionally, a first screw hole 421 is provided in the central area of the top surface of the inner shell body 42, and the inner shell body 42 and the outer shell body 41 are fixed together by screws passing through the first screw hole 421.
[0045] In the embodiments of the present invention, optionally, a fluid through hole 412 that penetrates the peripheral wall is provided on the peripheral wall of the outer shell body 41, so that the normal temperature water can cool the plastic pipe body 1 better and faster, and further improve the assembly efficiency.
[0046] In the embodiments of the present invention, optionally, a limiting protrusion 422 for limiting the metal inner liner tube 2 is provided at a position on the outer peripheral surface of the inner shell body 42 close to the bottom wall of the outer shell body 41. When the metal inner liner tube 2 is sleeved into the inner shell body 42, the limiting protrusion 422 is used to ensure that the sleeving is in place.
[0047] In the embodiments of the present invention, optionally, a positioning magnet 423 for positioning the metal inner liner tube 2 is further provided on the outer peripheral surface of the inner shell body 42 to prevent the metal inner liner tube 2 from shifting during the assembly process. The positioning magnet 423 is preferably an annular magnet sheet sleeved outside the inner shell body 42 as shown in the figure.
[0048] In an embodiment of the present utility model, optionally, the inner housing 42 includes an upper cylinder 4201 and a lower cylinder 4202 that are connected to each other. The diameter of the lower cylinder 4202 is greater than that of the upper cylinder 4201, and the outer peripheral surfaces of the upper cylinder 4201 and the lower cylinder 4202 are connected by an arc surface for transition. In this way, the aforementioned arc surface forms a guiding surface for sleeving the metal inner liner tube 2 outside the inner housing 42, further improving the assembly efficiency.
[0049] In an embodiment of the present utility model, optionally, the inner peripheral surface of the housing opening 411 and / or the inner peripheral surface of the box body opening 31 form an arc-shaped chamfer surface. Herein, "and / or" means that among the inner peripheral surface of the housing opening 411 and the inner peripheral surface of the box body opening 31, either simultaneously or selectively, they are designed as an arc-shaped chamfer surface as the guiding surface during buckling, further improving the assembly efficiency.
[0050] In an embodiment of the present utility model, optionally, at least one support seat corresponding to the buckling assembly 4 is provided inside the box body 3, and the outer housing 41 is fixedly installed on the support seat. The fixed installation method includes, but is not limited to, installation methods such as screw connection or snap connection, as long as the outer housing 41 can be fixedly installed on the support seat.
[0051] The rapid buckling tooling for the pipeline joint provided in the second aspect of this embodiment has a simple structure and is easy to operate, which is beneficial to rapidly buckle the metal inner liner tube 2 inside the plastic tube.
[0052] Finally, it should be noted that:
[0053] 1. The pipeline joint and the rapid buckling tooling for the pipeline joint provided by the present utility model can be applied not only to the automotive pipeline system but also to other fluid pipeline systems;
[0054] 2. Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other; the above embodiments in this specification are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.
Claims
1. A pipeline joint, characterized in that: It comprises a plastic tube body (1) and a metal liner tube (2); the outer peripheral surface of one axial end of the metal liner tube (2) is provided with an anti-slip boss protruding radially outward along the metal liner tube (2); one end of the plastic tube body (1) is heat-expanded and formed on the outside of the metal liner tube (2).
2. The pipe joint according to claim 1, characterized in that: The metal lining pipe (2) comprises a straight pipe section (21) and an expanded diameter pipe section (22) which are connected to each other, and the outer diameter of the expanded diameter pipe section (22) gradually increases from one end close to the straight pipe section (21) to the end away from the straight pipe section (21), so that the outer surface of the expanded diameter pipe section (22) forms the anti-slip boss.
3. A rapid clamping tooling for a pipeline joint, which is used for assembling the pipeline joint according to claim 1 or 2; characterized in that: The pipe joint quick crimping tool comprises a box body (3) and at least one set of crimping components (4) installed inside the box body (3); The top surface of the box body (3) is provided with a box body opening (31); Each group of the crimping components (4) comprises an outer shell (41) and an inner shell (42); The outer shell (41) comprises a bottom wall and a peripheral wall, and a shell opening (411) is provided on the top thereof and is in vertical communication with the box body opening (31); The inner shell (42) is fixedly connected to the inside of the outer shell (41), and a buckling gap is provided between the outer circumferential surface of the inner shell (42) and the inner circumferential surface of the outer shell (41).
4. The quick clamping tooling for pipeline joints according to claim 3, wherein: A first screw hole (421) is provided in the central area of the top surface of the inner shell (42), and the inner shell (42) and the outer shell (41) are fixed together by means of screws passing through the first screw hole (421).
5. The quick clamping tooling for pipeline joints according to claim 3, characterized in that: The peripheral wall of the outer shell (41) is provided with a fluid through hole (412) penetrating the peripheral wall.
6. The quick clamping tooling for pipeline joints according to claim 3, characterized in that: A limiting protrusion (422) for limiting the position of the metal liner tube (2) is provided at a portion of the outer peripheral surface of the inner shell (42) close to the bottom wall of the outer shell (41).
7. The quick clamping tooling for pipeline joints according to claim 3, characterized in that: The outer peripheral surface of the inner shell (42) is also provided with a positioning magnet (423) for positioning the metal liner tube (2).
8. The quick clamping tooling for pipeline joints according to claim 3, wherein: The inner shell (42) comprises an upper cylinder (4201) and a lower cylinder (4202) which are connected to each other, the diameter of the lower cylinder (4202) is larger than the diameter of the upper cylinder (4201), and the outer circumferential surface of the upper cylinder (4201) and the outer circumferential surface of the lower cylinder (4202) are connected by a transition of an arc surface.
9. The quick clamping tooling for pipeline joints according to claim 3, wherein: The inner circumferential surface of the shell opening (411) and / or the inner circumferential surface of the box body opening (31) forms an arc-shaped chamfered surface.
10. The quick clamping tooling for pipeline joints according to claim 3, characterized in that: At least one support seat corresponding one-to-one to the buckling assembly (4) is provided inside the box body (3), and the outer shell (41) is fixedly mounted on the support seat.