A support rod structure inside a high-pressure-resistant plastic fuel tank of a PHEV

Abstract

The application discloses a support rod structure in a high-pressure-resistant plastic fuel tank of a PHEV, which comprises a first welding surface, a support rod outer sleeve, a lock hole, a support rod inner sleeve, a first lock, a first inner sleeve end surface, a second lock, a first shaft sleeve, a second shaft sleeve, a trapezoidal groove and a second welding surface. The second shaft sleeve can be connected with the support rod outer sleeve and the first welding surface, and can position the sleeve connection of the support rod inner sleeve inside the support rod outer sleeve, assist the connection of the support rod outer sleeve and the support rod inner sleeve, and facilitate the connection of the left end of the support rod outer sleeve with a blank. The first shaft sleeve can reinforce the right end of the support rod inner sleeve, assist the right side connection of the support rod inner sleeve, and ensure the support effect of the support rod in use. The lock hole is used in combination with the first lock and the second lock, can lock the support rod outer sleeve and the support rod inner sleeve when the support rod outer sleeve and the support rod inner sleeve are connected, increase the stability of the connection of the support rod outer sleeve and the support rod inner sleeve, and reduce the displacement of the support rod outer sleeve or the support rod inner sleeve.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of plastic fuel tanks, and particularly relates to a support rod structure inside a PHEV high-pressure-resistant plastic fuel tank. BACKGROUND

[0002] With the rapid development of new energy vehicles, PHEV vehicles are also increasing, and high-pressure-resistant fuel tanks are also increasing. For the internal support rod of the high-pressure-resistant plastic fuel tank, a support rod needs to be added to meet the structural strength of the fuel tank. However, for the blow molding fuel tank of the two-piece process, the two molten piece blanks are tightly bonded in the internal cavity of the fuel tank mold, and at this time the upper and lower mold halves are open. The mechanical hand clamps the support rod so that one end of the support rod is fused with the piece blank. However, as the mechanical hand is removed, the support rod will drop downward due to gravity, resulting in failure or displacement of the other end of the support rod.

[0003] The support rod in the prior art is not easy to position during assembly, lacks a reinforcing structure between the inner sleeve and the outer sleeve of the support rod, and the two ends of the support rod are not easy to connect with the piece blank, which is inconvenient to use. In addition, the inner sleeve and the outer sleeve of the support rod lack a limiting locking structure, which is easy to displace during use, affecting the stability of the connecting rod support. Therefore, a support rod structure inside a PHEV high-pressure-resistant plastic fuel tank is proposed to solve the above problems. SUMMARY

[0004] In this embodiment, a support rod structure inside a PHEV high-pressure-resistant plastic fuel tank is provided to solve the problems in the prior art that the support rod is not easy to position during assembly, lacks a reinforcing structure between the inner sleeve and the outer sleeve of the support rod, the two ends of the support rod are not easy to connect with the piece blank, which is inconvenient to use, and the inner sleeve and the outer sleeve of the support rod lack a limiting locking structure, which is easy to displace during use, affecting the stability of the connecting rod support.

[0005] According to one aspect of the present application, a support rod structure inside a PHEV high-pressure-resistant plastic fuel tank is provided, which comprises a first fusion surface, a support rod outer sleeve and a support rod inner sleeve. The first fusion surface is fixed at one end of a second shaft sleeve. The second shaft sleeve is sleeved on the support rod outer sleeve. The support rod outer sleeve is internally sleeved with the support rod inner sleeve.

[0006] Further, two lock hole are formed on the support rod outer sleeve, and the lock hole is located on the right side of the second shaft sleeve.

[0007] Further, the diameter of the first fusion surface is greater than that of the second shaft sleeve, and a trapezoidal groove is formed on the first fusion surface.

[0008] Further, the trapezoidal groove forms a cross shape, and the diameter of the first fusion surface is greater than that of the first inner sleeve end face.

[0009] Further, the first shaft sleeve is sleeved with a first shaft sleeve on the support rod inner sleeve, and the right end of the first shaft sleeve is fixedly connected with a second welding surface.

[0010] Further, the diameter of the first shaft sleeve is the same as that of the support rod outer sleeve.

[0011] Further, a trapezoidal groove is also formed on the second welding surface.

[0012] Further, the first lock and the second lock are respectively installed on the support rod inner sleeve, and the first lock is located above the second lock.

[0013] Further, the two lock holes are respectively penetrated by the first lock and the second lock.

[0014] Further, the left end of the support rod inner sleeve is overlapped with the side wall of the second shaft sleeve, and the length of the second shaft sleeve is greater than the end face of the first inner sleeve.

[0015] Through the above-mentioned embodiments of the present application, the first welding surface, the support rod outer sleeve and the support rod inner sleeve are adopted, which solves the problems that the support rod is not easy to position during assembly, the support rod inner sleeve and the outer sleeve lack reinforcing structure, the two ends of the support rod are not easy to connect with the blank, and the support rod inner sleeve and the outer sleeve lack limiting locking structure, which is easy to shift during use, affecting the stability of the connecting rod support.

[0016] The support rod is convenient to position and assemble, the support rod inner sleeve and the outer sleeve have reinforcing structure, the support rod is convenient to connect with the blank, has limiting locking structure, avoids the shift between the connecting rod inner sleeve and the outer sleeve, and can maintain the stable support effect of the connecting rod. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of the overall structure of an embodiment of the present application;

[0020] Figure 3 is a schematic diagram of the first shaft sleeve structure of an embodiment of the present application;

[0021] Figure 4 is a schematic diagram of the trapezoidal groove structure installation of an embodiment of the present application.

[0022] In the figure: 1, the first welding surface; 2, the support rod outer sleeve; 3, the locking hole; 4, the support rod inner sleeve; 5, the first lock; 6, the first inner sleeve end face; 7, the second lock; 8, the first shaft sleeve; 9, the second shaft sleeve; 10, the trapezoidal groove; 11, the second welding surface. DETAILED DESCRIPTION

[0023] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For persons skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0027] In addition, the terms "mounting", "arrangement", "provided with", "connected", "linked", "sleeved" should be interpreted broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] Please refer to Figures 1-4 As shown in the figure, a support rod structure inside a PHEV high-pressure-resistant plastic fuel tank includes a first welding surface 1, a support rod outer sleeve 2, and a support rod inner sleeve 4. The first welding surface 1 is fixedly connected to one end of a second shaft sleeve 9. The second shaft sleeve 9 is sleeved on the support rod outer sleeve 2. The support rod outer sleeve 2 is internally sleeved with the support rod inner sleeve 4.

[0030] Two locking holes 3 are formed on the support rod outer sleeve 2. The locking holes 3 are located on the right side of the second shaft sleeve 9, which facilitates the auxiliary support of the locking holes 3 for the support rod outer sleeve 2 and the support rod inner sleeve 4 and connection. The diameter of the first welding surface 1 is greater than that of the second shaft sleeve 9. A trapezoidal groove 10 is formed on the first welding surface 1, which facilitates the connection of the left end of the support rod outer sleeve 2. The trapezoidal grooves 10 form a cross shape. The diameter of the first welding surface 1 is greater than that of a first inner sleeve end face 6, which facilitates the protection of the left end of the support rod outer sleeve 2. A first shaft sleeve 8 is sleeved on the support rod inner sleeve 4. A second welding surface 11 is fixedly connected to the right end of the first shaft sleeve 8, which facilitates the auxiliary use of the support rod inner sleeve 4. The diameter of the first shaft sleeve 8 is the same as that of the support rod outer sleeve 2. Trapezoidal grooves 10 are also formed on the second welding surface 11, which facilitates the connection with the blank. A first locking buckle 5 and a second locking buckle 7 are respectively installed on the support rod inner sleeve 4. The first locking buckle 5 is located above the second locking buckle 7, which facilitates the positioning of the installation of the support rod inner sleeve 4. The two locking holes 3 are respectively penetrated by the first locking buckle 5 and the second locking buckle 7, which facilitates the cooperative use of the locking holes 3, the first locking buckle 5, and the second locking buckle 7. The left end of the support rod inner sleeve 4 is overlapped with the side wall of the second shaft sleeve 9. The length of the second shaft sleeve 9 is greater than that of the first inner sleeve end face 6, which facilitates the second shaft sleeve 9 to limit the installation position of the support rod inner sleeve 4.

[0031] When the application is used, first, when the parison is torn to form two pieces during blow molding, the parison is adhered to the cavity of the oil tank mold through the action of vacuum and mechanical structure, at this time the support rod inner sleeve 4 is sleeved into the support rod outer sleeve 2, and the mechanical hand holds the support rod and puts it into the open mold. The equipment is started, the mold is moved in the corresponding direction to meet the first welding surface 11 on the support rod inner sleeve 4 and the support rod outer sleeve 2 and the first welding surface 1 connected with the parison, and the first welding surface 1 and the second welding surface 11 are both provided with pitting and trapezoidal grooves 10. During the movement of the mold, the support rod is stationary, which ensures that the pitting on the first welding surface 1 and the second welding surface 11 at both ends of the support rod is felt into the hot parison, and the extruded parison enters the trapezoidal groove 10. At this time, the mechanical hand is withdrawn, the mold is closed, and the support rod inner sleeve 4 and the support rod outer sleeve 2 are overlapped. When the mold is completely closed, the first lock 5 and the second lock 7 on the support rod inner sleeve 4 are connected with the lock hole 3 on the support rod outer sleeve 2, directly locking the support rod outer sleeve 2 and the support rod inner sleeve 4, thus completing the whole action process of the support rod. The support rod outer sleeve 2 and the support rod inner sleeve 4 are not limited to being circular, but can be square, X-shaped, etc., and the material is not limited to PPA, but can be POM, etc.

[0032] The application has the advantages that:

[0033] 1. The application is simple to operate. The second shaft sleeve 9 can connect the support rod outer sleeve 2 and the first welding surface 1, and position the sleeve joint of the support rod inner sleeve 4 inside the support rod outer sleeve 2, assisting the connection of the support rod outer sleeve 2 and the support rod inner sleeve 4, and facilitating the connection of the left end of the support rod outer sleeve 2 with the parison.

[0034] 2. The application has a reasonable structure. The first shaft sleeve 8 can reinforce the right end of the support rod inner sleeve 4, assisting the connection of the right side of the support rod inner sleeve 4. The first shaft sleeve 8 is flush with the support rod outer sleeve 2, facilitating the overall use of the support rod, and ensuring the supporting effect of the support rod in use.

[0035] 3. The combination of the lock hole 3 and the first lock 5 and the second lock 7 can lock the support rod outer sleeve 2 and the support rod inner sleeve 4 when they are connected, increase the stability of the connection of the support rod outer sleeve 2 and the support rod inner sleeve 4, and reduce the displacement of the support rod outer sleeve 2 or the support rod inner sleeve 4.

[0036] The above only describes the preferred embodiments of the application and is not intended to limit the application. Those skilled in the art can make various modifications and changes to the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

[0037] The above only describes the preferred embodiments of the application and is not intended to limit the application. Those skilled in the art can make various modifications and changes to the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. A support pole structure inside a PHEV high-pressure resistant plastic fuel tank, characterized by, It comprises a first fusion surface (1), a support rod outer sleeve (2) and a support rod inner sleeve (4); The first fusion surface (1) is fixed at one end of a second shaft sleeve (9), the second shaft sleeve (9) is sleeved on the support rod outer sleeve (2), and the support rod outer sleeve (2) is internally sleeved with the support rod inner sleeve (4); Two lock holes (3) are arranged on the support rod outer sleeve (2), and the lock holes (3) are located on the right side of the second shaft sleeve (9), so as to facilitate the connection of the lock holes (3), the support rod outer sleeve (2) and the support rod inner sleeve (4); The diameter of the first fusion surface (1) is greater than that of the second shaft sleeve (9), and a trapezoidal groove (10) is arranged on the first fusion surface (1), so as to facilitate the connection of the left end of the support rod outer sleeve (2); The trapezoidal grooves (10) form a cross shape, and the diameter of the first fusion surface (1) is greater than that of the first inner sleeve end face (6), so as to facilitate the protection of the left end of the support rod outer sleeve (2); The support rod inner sleeve (4) is sleeved with a first shaft sleeve (8), and the right end of the first shaft sleeve (8) is fixedly connected with a second fusion surface (11), so as to facilitate the use of the support rod inner sleeve (4); The diameter of the first shaft sleeve (8) is the same as that of the support rod outer sleeve (2), and the second fusion surface (11) is also provided with a trapezoidal groove (10), so as to facilitate the connection with the blank; The support rod inner sleeve (4) is respectively provided with a first lock (5) and a second lock (7), and the first lock (5) is located above the second lock (7), so as to facilitate the positioning of the installation of the support rod inner sleeve (4); The two lock holes (3) are respectively penetrated by the first lock (5) and the second lock (7), so as to facilitate the cooperation of the lock holes (3) and the first lock (5) and the second lock (7); The left end of the support rod inner sleeve (4) is overlapped with the side wall of the second shaft sleeve (9), and the length of the second shaft sleeve (9) is greater than that of the first inner sleeve end face (6), so as to facilitate the second shaft sleeve (9) to limit the installation position of the support rod inner sleeve (4); In use, first, when the parison is torn to form two pieces in blow molding, the parison is adhered to the cavity of the oil tank mold by the action of vacuum and mechanical structure, at this time the support rod inner sleeve (4) is sleeved into the support rod outer sleeve (2), the mechanical hand clamps the support rod and puts it into the open mold; the equipment is started, the mold is moved in the corresponding direction to meet the second welding surface (11) and the first welding surface (1) on the support rod inner sleeve (4) and the support rod outer sleeve (2) connected with the parison, the first welding surface (1) and the second welding surface (11) are both provided with nubs and trapezoidal grooves (10), during the mold moving process, the support rod is stationary, ensuring that the nubs on the first welding surface (1) and the second welding surface (11) at both ends of the support rod are felt into the hot parison, and the extruded parison enters the trapezoidal groove (10); at this time the mechanical hand is withdrawn, the mold is closed, the support rod inner sleeve (4) and the support rod outer sleeve (2) are overlapped, when the mold is completely closed, the first lock (5) and the second lock (7) on the support rod inner sleeve (4) are connected with the lock hole (3) on the support rod outer sleeve (2), directly locking the support rod outer sleeve (2) and the support rod inner sleeve (4), thus completing the whole action process of the support rod, the support rod outer sleeve (2) and the support rod inner sleeve (4) include but are not limited to circular, and the materials include but are not limited to PPA and POM; The above support rod structure is simple to operate, the second shaft sleeve (9) can connect the support rod outer sleeve (2) and the first welding surface (1), and position the sleeving of the support rod inner sleeve (4) inside the support rod outer sleeve (2), assist the connection of the support rod outer sleeve (2) and the support rod inner sleeve (4), and facilitate the connection of the left end of the support rod outer sleeve (2) with the parison; the above support rod structure is reasonable in structure, the first shaft sleeve (8) can reinforce the right end of the support rod inner sleeve (4) and assist the connection of the right side of the support rod inner sleeve (4), the first shaft sleeve (8) is flush with the support rod outer sleeve (2), facilitating the overall use of the support rod and ensuring the supporting effect of the support rod in use; The combination use of the lock hole (3) and the first lock (5) and the second lock (7) can lock the support rod outer sleeve (2) and the support rod inner sleeve (4) when they are connected, increase the stability of the connection of the support rod outer sleeve (2) and the support rod inner sleeve (4), and reduce the displacement of the support rod outer sleeve (2) or the support rod inner sleeve (4).

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