Pre-embedded air inlet and outlet of composite material air storage tank inner container for heavy truck

Abstract

The utility model is applicable to the technical field of vehicle gas storage tanks, in particular to a pre-embedded gas inlet / outlet of a composite material gas storage tank liner for a heavy truck, which comprises a composite material tank body, composite material end sockets are welded at two ends of the composite material tank body, pre-embedded grooves are formed in the surfaces of the composite material end sockets, and the pre-embedded grooves are embedded in the composite material tank body. And a pre-embedded piece is arranged in the pre-embedded groove, a pre-mounted mounting groove is formed in the pre-embedded groove, and a plurality of pre-mounted air inlets and outlets are formed in the pre-mounted mounting groove. According to the utility model, the aluminum alloy pre-embedded sheet is pre-embedded in the pre-embedded groove of the composite material end socket by adopting an injection molding process, so that the problems of uncontrollable process and sealing failure caused by temperature change in the traditional hot plug process are solved. Protruding blocks are arranged on the surfaces of the embedded pieces, and the embedded pieces are connected with the hollow nuts in a sealed mode through the through holes, so that the problems of nut rotation, deflection and sealing failure possibly occurring in the traditional technology are effectively solved, and reliable sealing performance of the connector is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas storage tank for vehicle, specifically is a kind of pre-buried type air inlet and outlet of composite material gas storage tank inner bag for heavy truck. BACKGROUND

[0002] With the increasing performance requirements of heavy truck (heavy truck) to brake system, as important gas source equipment in brake system, composite material is gradually used as inner bag material to reduce weight and improve pressure resistance for gas storage tank. Composite material gas storage tank inner bag usually needs to be provided with air inlet and outlet joint at both ends to ensure smooth flow and air tightness of gas. In prior art, the connection mode of air inlet and outlet joint is usually hot plug process, wherein sealing ring is first installed on aluminum alloy insert, then it is softened by heating, and aluminum alloy insert is pressed into the pre-set hole of composite material inner bag by external pressure. Although this process can achieve certain sealing effect, there are still some technical problems.

[0003] Firstly, existing hot plug process is prone to sealing failure under temperature change. Since composite material is sensitive to moisture, its performance may change after absorbing water, resulting in poor controllability of process, especially in the case of large temperature fluctuation, hot plug process often cannot ensure the sealing reliability between insert and inner bag. In addition, during pressing process, aluminum alloy insert may rotate, skew or cut circle, and the difference of surrounding material or environment will further affect the sealing effect of joint and increase the risk of leakage.

[0004] Secondly, since single sealing mode is used in traditional process, it is often difficult to adapt to extreme working conditions such as high pressure and low temperature. Especially in low temperature environment, shrinkage and deformation of composite material may cause sealing failure, resulting in gas leakage and affecting the long-term stability and safety of gas storage tank. Existing technology lacks effective solutions to the sealing problem under complex working conditions, so that the sealing performance of gas storage tank cannot be guaranteed under different working conditions, and the service life of equipment is also limited. TECHNICAL FIELD

[0005] The purpose of the embodiment of the utility model is to provide a pre-buried type air inlet and outlet of composite material gas storage tank inner bag for heavy truck, which aims to solve the technical problems mentioned in the background art.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A kind of pre-buried type gas inlet and outlet of composite material gas storage tank liner for heavy truck, including composite material tank body, and the both ends of composite material tank body are welded with composite material head, the surface of the composite material head is provided with preset pre-buried groove, and the inside of preset pre-buried groove is provided with pre-buried piece, the inside of preset pre-buried groove is provided with preset installation groove, and the inside of preset installation groove is provided with several preset gas inlet and outlet;

[0008] The surface of the pre-buried piece is provided with a protruding block, and the surface of the protruding block is provided with a plurality of through holes, and the inside of the through holes is sealingly connected with a hollow nut.

[0009] Further, the pre-buried piece and the protruding block are both aluminum alloy components.

[0010] Further, the inside of the through hole is provided with a sealing internal thread, and the hollow nut is detachably connected inside the through hole through the sealing internal thread.

[0011] Further, the edge of the surface of the pre-buried piece is provided with a pre-buried butt groove, and the edge of the inside of the preset pre-buried groove is provided with an embedded groove, and the pre-buried butt groove is engaged with the embedded groove.

[0012] Further, one end of the preset gas inlet and outlet is closely attached to the surface of the pre-buried piece, and the preset gas inlet and outlet is on the same axis as the through hole.

[0013] Further, the inside of the through hole is provided with a first trapezoidal groove, and the inside of the first trapezoidal groove is provided with a clamping spring.

[0014] Further, the inner bottom of the through hole is provided with a second trapezoidal groove, and the inside of the second trapezoidal groove is provided with a sealing gasket ring.

[0015] Further, the inner top of the through hole is provided with a third trapezoidal groove, and the inside of the third trapezoidal groove is provided with an O-shaped sealing ring.

[0016] The pre-buried type gas inlet and outlet of composite material gas storage tank liner for heavy truck provided by the utility model has the following beneficial effects:

[0017] The injection molding pre-buried aluminum alloy gas inlet and outlet joint for gas storage tank provided by the utility model solves the problems of uncontrollable process and sealing failure caused by temperature change in traditional hot insertion process by embedding the aluminum alloy pre-buried piece in the preset pre-buried groove of the composite material head through the injection molding process. The protruding block is arranged on the surface of the pre-buried piece, and the through hole is sealingly connected with the hollow nut, thereby effectively avoiding the problems of nut rotation, deflection and sealing failure that may occur in traditional process, and ensuring the reliable sealing of the joint.

[0018] In addition, the design sets multiple air inlet and outlet ports through pre-set installation grooves, ensuring smooth airflow and optimizing the overall performance of the gas storage tank. The welding combination of the composite material head and the composite material tank body enhances the firmness of the overall structure, providing stronger pressure resistance and deformation resistance. The overall design can adapt to high pressure and low temperature requirements in different working environments, especially in low temperature environments, still maintaining good sealing performance, reducing the risk of leakage and prolonging the service life of the equipment. Through this innovative design, the utility model not only improves the controllability of the production process, but also significantly improves the safety and stability of the gas storage tank. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of a pre-buried air inlet and outlet port of a composite material gas storage tank liner for a heavy truck.

[0020] Figure 2 It is a structure schematic view of a composite material head and a pre-buried sheet in a separated state in a pre-buried air inlet and outlet port of a composite material gas storage tank liner for a heavy truck.

[0021] Figure 3 It is a local structure schematic view of a pre-buried sheet, a protruding block and a hollow nut in a pre-buried air inlet and outlet port of a composite material gas storage tank liner for a heavy truck.

[0022] Figure 4 It is a sectional structure schematic view of a protruding block, a hollow nut, a snap spring and a sealing gasket ring in a pre-buried air inlet and outlet port of a composite material gas storage tank liner for a heavy truck.

[0023] Figure 5 It is a sectional structure schematic view of a protruding block in a pre-buried air inlet and outlet port of a composite material gas storage tank liner for a heavy truck.

[0024] In the figure: 1, composite material tank body; 2, composite material head; 3, pre-buried sheet; 4, protruding block; 5, hollow nut; 6, pre-set pre-buried groove; 7, pre-set installation groove; 8, pre-set air inlet and outlet port; 9, O-shaped sealing ring; 10, snap spring; 11, sealing gasket ring; 12, through hole; 13, pre-buried butt joint groove; 14, first trapezoidal groove; 15, second trapezoidal groove; 16, third trapezoidal groove. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0026] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0027] AsFigures 1-5 The utility model discloses an embedded gas inlet and outlet of a composite material inner container of a heavy truck composite material gas tank, which comprises a composite material tank body 1, and composite material tank body 1 is welded with a composite material head 2 at both ends, a preset embedded groove 6 is formed on the surface of the composite material head 2, and a preset embedded piece 3 is arranged in the preset embedded groove 6.

[0028] A preset installation groove 7 is formed in the preset embedded groove 6, and a plurality of preset gas inlets and outlets 8 are arranged in the preset installation groove 7, and the preset gas inlets and outlets 8 are connected to the inside of the composite material head 2.

[0029] The surface of the embedded piece 3 is provided with a protruding block 4, a plurality of through holes 12 are formed on the surface of the protruding block 4, and hollow nuts 5 are sealingly connected to the inside of the through holes 12. One end of the preset gas inlet and outlet 8 is tightly combined with the surface of the embedded piece 3, and the preset gas inlet and outlet 8 and the through holes 12 are on the same axis.

[0030] The embedded piece 3 and the protruding block 4 are both made of aluminum alloy.

[0031] A preset butt joint groove 13 is formed on the edge of the surface of the embedded piece 3, an embedded groove is formed on the edge of the inside of the preset embedded groove 6, and the preset butt joint groove 13 is connected to the embedded groove.

[0032] The working principle of the injection molded embedded aluminum alloy gas inlet and outlet joint for the gas tank is mainly dependent on the combination of the aluminum alloy embedded piece 3, the composite material head 2 and the injection molding embedding technology. In the technical scheme, the composite material head 2 is welded at both ends of the composite material tank body 1, the preset embedded groove 6 is formed on the surface of the composite material head 2, and the embedded piece 3 is embedded in the preset embedded groove 6 through the injection molding process. The protruding block 4 on the surface of the embedded piece 3 is firmly connected with the groove of the head in the injection molding process, so as to ensure the strength and stability of the joint. A plurality of through holes 12 are formed on the surface of the embedded piece 3, and the through holes 12 are sealingly connected through the hollow nuts 5. The preset gas inlet and outlet 8 is connected to the inside of the composite material head 2, and the preset gas inlet and outlet 8 is tightly combined with the surface of the embedded piece 3, so as to ensure that the gas inlet and outlet 8 and the through holes 12 are on the same axis, and a stable airtight connection is formed.

[0033] In the specific implementation, the preset embedded groove 6 of the composite material head 2 and the aluminum alloy embedded piece 3 are combined through the injection molding process to form the gas inlet and outlet 8 joint. The embedded piece 3 is made of aluminum alloy, has strong rigidity, and can avoid the joint deformation problem caused by the high-pressure gas. The injection molding process not only improves the production efficiency, but also avoids the sealing failure caused by the nut rotation and deflection in the traditional hot plug process.

[0034] The advantages of this scheme are first, it can improve the controllability of the process, by precisely controlling the joint size and position through injection molding process, avoiding uncontrollable factors in the hot plug process. Secondly, the high rigidity of the aluminum alloy insert ensures the strength of the connection part, preventing leakage under the action of high pressure gas. In addition, the double sealing design ensures the sealing performance in low temperature environment, especially suitable for low temperature working conditions. By reducing human intervention in the production process, injection molding process also simplifies the manufacturing process and improves production efficiency.

[0035] This technical solution is not only suitable for heavy truck brake gas storage tank, but also has wide application prospect. Its design principle is also applicable to other gas storage and delivery equipment, such as air conditioning system, gas delivery pipeline, etc. With the increasing demand for high performance joints in gas storage system, the application scenarios of this technical solution will gradually expand. In addition, this design is also suitable for gas storage system in low temperature environment, such as cold chain transportation and low temperature experimental equipment fields.

[0036] In general, the injection molding pre-embedded aluminum alloy gas inlet and outlet joint design of the utility model combines the advantages of injection molding pre-embedding and high rigidity of aluminum alloy, effectively solves the problems of sealing failure and uncontrollable process in the prior art, and has good market application potential and technical popularization value.

[0037] In this embodiment, the inside of the through hole 12 is provided with a sealing internal thread, and the hollow nut 5 is detachably connected to the inside of the through hole 12 through the sealing internal thread. The inside of the through hole 12 is provided with a first trapezoidal groove 14, and the inside of the first trapezoidal groove 14 is provided with a clamping spring 10. The inner bottom of the through hole 12 is provided with a second trapezoidal groove 15, and the inside of the second trapezoidal groove 15 is provided with a sealing gasket ring 11. The inner top of the through hole 12 is provided with a third trapezoidal groove 16, and the inside of the third trapezoidal groove 16 is provided with an O-shaped sealing ring 9.

[0038] A sealing internal thread is provided inside the through hole 12, and the hollow nut 5 is detachably connected to the inside of the through hole 12 via the sealing internal thread. A plurality of trapezoidal grooves are also provided on the inner wall of the through hole 12, including a first trapezoidal groove 14, a second trapezoidal groove 15 and a third trapezoidal groove 16, which are used to install a retaining spring 10, a sealing gasket 11 and an O-ring 9, respectively. This structural design ensures efficient sealing and stable connection of the joint, and avoids leakage problems caused by external pressure or temperature changes. The design of the sealing internal thread not only improves the reliability of the connection, but also allows the hollow nut 5 to be easily disassembled and replaced, making it easier to maintain and repair. The retaining spring 10 in the first trapezoidal groove 14 fixes the relevant components and increases the stability of the joint. The sealing gasket 11 in the second trapezoidal groove 15 ensures the sealing performance at the air inlet and outlet. The O-ring 9 in the third trapezoidal groove 16 further improves the sealing effect under low temperature or high pressure environments. This multiple sealing design not only enhances the sealing performance of the system, but also ensures safety and stability during long-term use, reduces the risk of leakage, and improves the reliability of the entire machine.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pre-buried type gas inlet and outlet port of a composite material gas tank liner for heavy trucks, comprising a composite tank body (1), and a composite head (2) is welded at both ends of the composite tank body (1), characterized in that, The surface of the composite material head (2) is provided with a preset embedded groove (6), and the inside of the preset embedded groove (6) is provided with an embedded sheet (3), the inside of the preset embedded groove (6) is provided with a preset installation groove (7), and the inside of the preset installation groove (7) is provided with a plurality of preset air inlet and outlet openings (8). The surface of the embedded sheet (3) is provided with a protruding block (4), and the surface of the protruding block (4) is provided with a plurality of through holes (12), and the inside of the through hole (12) is sealingly connected with a hollow nut (5).

2. The pre-buried air inlet and outlet of the heavy truck composite gas tank liner according to claim 1, characterized in that, The embedded sheet (3) and the protruding block (4) are both aluminum alloy components.

3. The pre-buried air inlet and outlet of the heavy truck composite gas tank liner according to claim 1, characterized in that, The inside of the through hole (12) is provided with a sealing internal thread, and the hollow nut (5) is detachably connected in the inside of the through hole (12) through the sealing internal thread.

4. The pre-buried gas inlet and outlet of the heavy truck composite gas tank liner according to claim 1, characterized in that, The edge of the surface of the embedded sheet (3) is provided with a preset butt joint groove (13), and the edge of the inside of the preset embedded groove (6) is provided with an embedded groove, and the preset butt joint groove (13) is connected with the embedded groove.

5. The pre-buried gas inlet and outlet of the heavy truck composite gas tank liner according to claim 1, characterized in that, One end of the preset air inlet and outlet opening (8) is closely attached to the surface of the embedded sheet (3), and the preset air inlet and outlet opening (8) is on the same axis as the through hole (12).

6. The pre-buried gas inlet and outlet of the heavy truck composite gas tank liner according to claim 1, characterized in that, The inside of the through hole (12) is provided with a first trapezoidal groove (14), and the inside of the first trapezoidal groove (14) is provided with a clamping spring (10).

7. The pre-buried gas inlet and outlet of the heavy truck composite gas tank liner according to claim 1, characterized in that, The inner bottom of the through hole (12) is provided with a second trapezoidal groove (15), and the inside of the second trapezoidal groove (15) is provided with a sealing gasket ring (11).

8. The pre-buried gas inlet and outlet of the heavy truck composite gas tank liner according to claim 1, characterized in that, The inner top of the through hole (12) is provided with a third trapezoidal groove (16), and the inside of the third trapezoidal groove (16) is provided with an O-shaped sealing ring (9).

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