Composite high-strength seal head

Abstract

The combined type high-strength end socket comprises an end socket body, an outer edge plate is arranged on the outer side of the opening end of the end socket body, and an annular groove is formed in the inner side of the opening end of the end socket body; a reinforcing plate assembly is embedded in the end socket body. The reinforcing plate assembly comprises a base layer, a reinforcing layer and a functional layer which are sequentially compounded from inside to outside. The base layer serves as a supporting structure, the reinforcing layer serves as a weight reduction reinforcing structure, and the functional layer is corrosion-resistant; the base layer, the reinforcing layer and the functional layer are compositely molded through explosive welding; after the reinforcing plate assembly is connected with the end socket body, the surface of the opening end and the surface of the annular groove are located on the same horizontal plane. A locking ring in threaded connection with the end socket body is arranged on the annular groove and is used for limiting the degree of freedom of axial movement of the reinforcing plate assembly relative to the end socket body. The sealing head is simple in structure, reasonable in design, low in cost and high in efficiency, a multi-layer nesting assembly procedure is omitted, and the overall gravity of the sealing head is reduced while the strength of the sealing head is improved.

Description

Technical Field

[0001] This utility model relates to the field of end cap technology, and in particular to a composite high-strength end cap. Background Technology

[0002] Traditional end caps are mostly made of single-layer steel plate stamping or nested multi-layer structure, which has the following defects:

[0003] 1. Complex structure: The multi-layered nested design requires multiple assembly processes, increasing manufacturing costs;

[0004] 2. Excessive weight: The strength is ensured by the thickness of the material, resulting in excessive weight.

[0005] 3. The structure is complex, manufacturing and installation are cumbersome, and efficiency is low due to the welding and / or snap-fit ​​connection and locking of multiple parts.

[0006] Therefore, in order to solve the above problems, it is necessary to develop a lightweight, structurally simplified, and easy-to-manufacture and assemble composite high-strength head. Utility Model Content

[0007] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0008] A composite high-strength end cap, comprising an end cap body, characterized in that:

[0009] The outer edge plate is provided on the outer side of the opening end of the head body, and an annular groove is provided on the inner side; a reinforcing plate assembly is nested inside the head body;

[0010] The reinforcing plate assembly comprises, from the inside out, a base layer, a reinforcing layer, and a functional layer;

[0011] The base layer serves as a supporting structure, the reinforcing layer serves as a weight-reducing and reinforcing structure, and the functional layer is corrosion-resistant; the base layer, reinforcing layer, and functional layer are compositely formed by explosive welding.

[0012] After the reinforcing plate assembly is connected to the head body, its open end surface and the surface of the annular groove are at the same horizontal plane.

[0013] The annular groove is provided with a locking ring that is threadedly connected to the head body. The locking ring is used to restrict the degree of freedom of the reinforcing plate assembly to move axially relative to the head body.

[0014] Preferably, the base layer is a low-carbon steel plate, the reinforcing layer is a honeycomb aluminum plate or a carbon fiber reinforced composite material plate, and the functional layer is a corrosion-resistant alloy layer.

[0015] Preferably, the annular groove has a first thread on its side, and the locking ring has a second thread on its outer circumferential surface.

[0016] The locking ring has a second thread on its outer circumference, and the locking ring is threadedly connected to the head body through the first thread and the second thread.

[0017] Preferably, the first thread and the second thread are tapered thread structures.

[0018] Preferably, the surface of the annular groove is provided with a first annular concave surface, and the surface of the opening end of the reinforcing plate assembly is provided with a second annular concave surface near the first concave surface, and the first annular concave surface and the second annular concave surface form a first sealing groove.

[0019] A first sealing element is provided in the first sealing groove.

[0020] Preferably, the cross-section of the first sealing groove is an inverted trapezoid;

[0021] The first seal is made of fluororubber, and the cross-section of the first seal is circular or inverted trapezoidal.

[0022] Preferably, the surface of the locking ring is provided with a plurality of auxiliary rods.

[0023] Preferably, the outer perimeter of the opening end of the reinforcing plate assembly is provided with a limiting groove, and the end cap body is provided with limiting protrusions that cooperate with the limiting groove.

[0024] Preferably, a connecting pipe is provided at the end of the reinforcing plate assembly away from the opening;

[0025] A safety valve is installed at one end of the connecting pipe that passes through the head body, and a baffle is installed on the outside of the other end.

[0026] Preferably, a second sealing groove is formed on the surface of the outer edge plate, and a second sealing element is provided in the second sealing groove.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] 1. Lightweight design achieved through a honeycomb aluminum / carbon fiber reinforcement layer;

[0029] 2. By setting up a reinforcing plate assembly formed by explosive welding of a base layer, a reinforcing layer and a functional layer, compared with the multi-layer nested structure of the prior art, the multi-layer nested assembly process is eliminated. While improving the strength of the end cap, the overall weight of the end cap is reduced, resulting in low cost and high efficiency.

[0030] 3. The reinforcing plate assembly is locked into the head assembly by a single locking ring, which simplifies the structure and makes manufacturing and assembly convenient and quick. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0032] Figure 2 This is an exploded view of the present invention;

[0033] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0034] Figure 4 This is a partial cross-sectional schematic diagram of the reinforcing plate assembly in this utility model;

[0035] The components include: head body 1, outer edge plate 2, reinforcing plate assembly 3, locking ring 4, first sealing element 5, connecting pipe 6, safety valve 7, baffle 8, threaded hole 21, base layer 31, reinforcing layer 32, functional layer 33, auxiliary rod 41, annular groove 10, first annular concave surface 20, second annular concave surface 30, first sealing groove 40, limiting slot 50, limiting protrusion 60, second sealing groove 70, and second sealing element 80. Detailed Implementation

[0036] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0037] It should be noted that when a component is said to be "fixed" to another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "front," "back," "left," "right," "up," "down," and similar expressions used in this document are for illustrative purposes only.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0040] like Figure 1-4As shown, a composite high-strength end cap includes an end cap body 1, an outer edge plate 2 is provided on the outer side of the open end of the end cap body 1, and an annular groove 10 is provided on the inner side; a reinforcing plate assembly 3 is nested inside the end cap body 1.

[0041] The reinforcing plate assembly 3 includes a base layer 31, a reinforcing layer 32, and a functional layer 33, which are sequentially composited from the inside out;

[0042] The base layer 31 serves as a supporting structure, the reinforcing layer 32 serves as a weight-reducing and reinforcing structure, and the functional layer 33 is corrosion-resistant; the base layer 31, the reinforcing layer 32, and the functional layer 33 are compositely formed by explosive welding.

[0043] After the reinforcing plate assembly 3 is connected to the head body 1, its open end surface is at the same level as the surface of the annular groove 10.

[0044] The annular groove 10 is provided with a locking ring 4 that is threadedly connected to the head body 1. The locking ring 4 is used to limit the degree of freedom of the reinforcing plate assembly 3 to move axially relative to the head body 1.

[0045] In this embodiment, during manufacturing and installation, the reinforcing plate assembly 3 is first nested inside the head body 1, and then the reinforcing plate assembly 3 is locked inside the head body 1 by threaded connection between the locking ring 4 and the annular groove 10 of the head assembly. The structure is simple and the manufacturing and assembly are convenient and quick.

[0046] In this embodiment, the base layer 31, the reinforcing layer 32, and the functional layer 33 are compositely formed by explosive welding. Compared with the multi-layer nested structure of the prior art, this eliminates the multi-layer nested assembly process, reduces manufacturing costs, and improves the strength of the end cap while reducing the overall weight of the end cap.

[0047] Furthermore, as shown in 1, 2, 3, and 4, the base layer 31 is a low-carbon steel plate, the reinforcing layer 32 is a honeycomb aluminum plate or a carbon fiber reinforced composite material plate, and the functional layer 33 is a corrosion-resistant alloy layer.

[0048] In this embodiment, the base layer 31 is a 2-3mm low-carbon steel plate, the reinforcing layer 32 is a 1.5-2mm honeycomb aluminum plate, and the functional layer 33 is a 0.5-0.7mm Hastelloy alloy.

[0049] Furthermore, such as Figure 2 , 3 As shown, in order to achieve the threaded locking connection between the locking ring 4 and the end cap body 1, the side of the annular groove 10 is provided with a first thread (not shown in the figure), and the outer circumferential surface of the locking ring 4 is provided with a second thread (not shown in the figure).

[0050] The locking ring 4 has a second thread on its outer circumference, and the locking ring 4 is threadedly connected to the end cap body 1 through the first thread and the second thread.

[0051] Furthermore, such as Figure 2 , 3 As shown, in order to improve the vibration resistance and loosening resistance of the connection between the locking ring 4 and the end cap body 1, the first thread and the second thread are tapered thread structures.

[0052] Furthermore, such as Figure 2 , 3 As shown, in order to improve the sealing between the reinforcing plate assembly 3 and the end cap body 1, a first annular concave surface 20 is provided on the surface of the annular groove 10, and a second annular concave surface 30 is provided on the open end surface of the reinforcing plate assembly 3 near the first concave surface. The first annular concave surface 20 and the second annular concave surface 30 form a first sealing groove 40.

[0053] A first sealing element 5 is provided in the first sealing groove 40.

[0054] Furthermore, such as Figure 2 , 3 As shown, in order to improve sealing reliability and vibration resistance, the cross-section of the first sealing groove 40 is an inverted trapezoid.

[0055] The first sealing element 5 is made of fluororubber, and the cross-section of the first sealing element 5 is circular or inverted trapezoidal.

[0056] Furthermore, such as Figure 1 , 2 As shown in Figures 3 and 4, the surface of the locking ring 4 is provided with a plurality of auxiliary rods 41;

[0057] In this embodiment, the auxiliary rod 41 serves as the force point when the locking ring 4 is threadedly connected to the end cap body 1, making it easy to lock or loosen the locking ring 4 and the end cap body 1 by using external tools, ensuring that the locking is in place.

[0058] Furthermore, such as Figure 2 As shown, in order to restrict the rotation of the reinforcing plate assembly 3 relative to the head body 1, a limiting groove 50 is provided around the outer periphery of the opening end of the reinforcing plate assembly 3, and a limiting protrusion 60 is provided on the head body 1 to cooperate with the limiting groove 50.

[0059] Furthermore, such as Figure 1 , 2 As shown in Figures 3 and 4, a connecting pipe 6 is provided at the end of the reinforcing plate assembly 3 away from the opening;

[0060] The connecting pipe 6 has a safety valve 7 installed at one end of the end cap body 1, and a baffle 8 installed on the outer side of the other end.

[0061] In this embodiment, the baffle 8 effectively decomposes the high-pressure impact force on the end cap, and the safety valve 7 can automatically release pressure when the upper limit of high pressure is reached inside the end cap, thereby improving safety.

[0062] Furthermore, such as Figure 1 , 2 As shown in Figures 1 and 3, a second sealing groove 70 is provided on the surface of the outer edge plate 2, and a second sealing element 80 is provided in the second sealing groove 70;

[0063] The outer edge plate 2 is provided with threaded holes 21 for connecting with external pipe fittings.

[0064] In this embodiment, the threaded hole 21 allows the outer edge plate 2 to be directly flange-connected to the round pipe to be sealed, and the second sealing groove 70 is provided with a second sealing element 80, so that the end cap can achieve a detachable sealing connection.

[0065] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. A composite high-strength end cap, comprising an end cap body, characterized in that: The outer edge plate is provided on the outer side of the opening end of the head body, and an annular groove is provided on the inner side; a reinforcing plate assembly is nested inside the head body; The reinforcing plate assembly comprises, from the inside out, a base layer, a reinforcing layer, and a functional layer; The base layer serves as a supporting structure, the reinforcing layer serves as a weight-reducing and reinforcing structure, and the functional layer is corrosion-resistant; the base layer, reinforcing layer, and functional layer are compositely formed by explosive welding. After the reinforcing plate assembly is connected to the head body, its open end surface and the surface of the annular groove are at the same horizontal plane. The annular groove is provided with a locking ring that is threadedly connected to the head body. The locking ring is used to restrict the degree of freedom of the reinforcing plate assembly to move axially relative to the head body.

2. The composite high-strength end cap according to claim 1, characterized in that, The base layer is a low-carbon steel plate, the reinforcing layer is a honeycomb aluminum plate or a carbon fiber reinforced composite material plate, and the functional layer is a corrosion-resistant alloy layer.

3. The composite high-strength end cap according to claim 1, characterized in that, The annular groove is provided with a first thread on its side, and the outer circumferential surface of the locking ring is provided with a second thread. The locking ring has a second thread on its outer circumference, and the locking ring is threadedly connected to the head body through the first thread and the second thread.

4. A composite high-strength end cap according to claim 3, characterized in that, The first and second threads are tapered thread structures.

5. A composite high-strength end cap according to claim 1, characterized in that, The surface of the annular groove is provided with a first annular concave surface, and the surface of the opening end of the reinforcing plate assembly is provided with a second annular concave surface near the first concave surface. The first annular concave surface and the second annular concave surface form a first sealing groove. A first sealing element is provided in the first sealing groove.

6. A composite high-strength end cap according to claim 5, characterized in that, The cross-section of the first sealing groove is an inverted trapezoid; The first seal is made of fluororubber, and the cross-section of the first seal is circular or inverted trapezoidal.

7. A composite high-strength end cap according to claim 1, characterized in that, The surface of the locking ring is provided with multiple auxiliary rods.

8. A composite high-strength end cap according to claim 1, characterized in that, The reinforcing plate assembly has a limiting groove around the outer perimeter of the opening end, and the end cap body has a limiting protrusion that cooperates with the limiting groove.

9. A composite high-strength end cap according to claim 1, characterized in that, A connecting pipe is provided at the end of the reinforcing plate assembly away from the opening; A safety valve is installed at one end of the connecting pipe that passes through the head body, and a baffle is installed on the outside of the other end.

10. A composite high-strength end cap according to claim 1, characterized in that, The outer edge plate has a second sealing groove on its surface, and a second sealing element is provided in the second sealing groove.

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