Split type embedded part

Abstract

The utility model relates to the technical field of fuel tank auxiliary equipment, and provides a split type embedded part which comprises an embedded part used for being arranged on a forming mold of a fuel tank in advance, and after blow molding of the fuel tank, one end of the embedded part is connected with a parison of the fuel tank; the baffle valve is arranged on the inner wall of the parison, the baffle valve and the embedded part are concentric, and after the fuel tank is perforated, the baffle valve is communicated with the embedded part. By means of the technical scheme, the problem that in the prior art, after an ICV is installed, the fuel oil leakage risk is high is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel tank auxiliary equipment, and in particular to a split embedded part. Background Art

[0002] ICV is an auxiliary device that connects the fuel pipe and the fuel tank. Part of the ICV structure is located inside the fuel tank and part is located outside the fuel tank. In order to install the ICV structure on the fuel tank, it is necessary to drill a hole in the shell of the fuel tank and then connect the ICV structure and the fuel tank together by welding. The sealing of the connection part depends on welding, and the quality of the sealing performance depends on the quality of welding, which is prone to fuel leakage. Utility Model Content

[0003] The utility model provides a split embedded part, which solves the problem of high risk of fuel leakage after ICV installation in the related art.

[0004] The technical solution of the utility model is as follows:

[0005] A split embedded part, comprising

[0006] An embedded part is used to be preset on a forming mold of a fuel tank, and after the fuel tank is blow-molded, one end of the embedded part is connected to the parison of the fuel tank;

[0007] The flapper valve is arranged on the inner wall of the parison, the flapper valve is concentric with the embedded part, and after the fuel tank is opened, the flapper valve is communicated with the embedded part.

[0008] Optionally, the embedded part has an inserting portion and an abutting portion, the inserting portion is used to be preset on the forming mold, and the abutting portion has a first step on a side close to the inserting portion, and the first step abuts against the outer wall of the blank.

[0009] Optionally, the plug-in portion has a plurality of annular protrusions at one end close to the abutting portion, and the annular protrusions are used to abut against the forming mold.

[0010] Optionally, also include

[0011] The second step has a large end and a small end, the diameter of the large end is larger than the diameter of the small end, the large end is arranged on the first step, and the plug-in portion, the abutment portion, the first step and the second step are connected in sequence.

[0012] Optionally, the flapper valve comprises

[0013] A connecting tube, one end of which is arranged on the inner wall of the parison;

[0014] A valve plate, one end of which is rotatably disposed at the other end of the connecting tube;

[0015] A first elastic member, wherein two ends of the first elastic member are respectively arranged on the connecting tube and the valve plate, and the first elastic member is used to provide a force for the valve plate to rotate close to the connecting tube.

[0016] Optionally, the baffle valve has a groove at one end close to the parison, and the groove is used to abut against the parison.

[0017] Optionally, the connecting tube has a guide surface, the guide surface is located at one end of the connecting tube close to the slot, the guide surface is ring-shaped, and the diameter of the guide surface close to one end of the parison is smaller than the diameter of the other end of the guide surface.

[0018] Optionally, the outer wall of the connecting cylinder is cylindrical, and one end of the connecting cylinder away from the parison has a circulation portion and a fixing portion, and the valve plate is rotatably arranged on the fixing portion.

[0019] The working principle and beneficial effects of the utility model are:

[0020] In the utility model, in order to solve the problem of high risk of fuel leakage after ICV installation in the related art, the ICV is designed to be split, consisting of two parts: an embedded part and a baffle valve. Before blow molding of the fuel tank, the embedded part is first placed in the molding mold, and then during the blow molding of the fuel tank, the parison can be connected to one end of the embedded part. After the parison is preformed, the baffle valve is installed on the inner wall of the parison, and the baffle valve is concentric with the embedded part. After the fuel tank is completely formed, the parison opening between the embedded part and the baffle valve is connected to the embedded part and the baffle valve. Compared with the traditional ICV structure, the split ICV can be installed on the fuel tank during the blow molding process of the fuel tank. As the parison is formed, the parison can first be covered on one end of the embedded part. When installing the baffle valve, the parison is still in a high temperature state. If the temperature is not enough, the parison can be heated. At this time, the baffle valve is plugged into the parison. After the fuel tank is fully formed, the embedded part and the baffle valve can form a stable connection with the parison, thereby ensuring that the ICV and the fuel tank are connected more closely and the sealing performance of the fuel tank is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the embedded parts of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the baffle valve of the utility model.

[0025] In the figure: 1, embedded parts, 2, forming mold, 3, blank, 4, baffle valve, 101, plug-in part, 102, abutment part, 1021, first step, 1011, annular protrusion, 1022, second step, 1023, large end, 1024, small end, 401, connecting cylinder, 402, valve plate, 403, first elastic part, 4011, slot, 4012, guide surface, 4013, circulation part, 4014, fixing part. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0027] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0028] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0029] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0030] Reference Figure 1~Figure 3, which is the first embodiment of the utility model, proposes a split embedded part, including an embedded part 1, which is used to be preset on a forming mold 2 of a fuel tank. After the fuel tank is blow-molded, one end of the embedded part 1 is connected to a blank 3 of the fuel tank; a baffle valve 4 is arranged on the inner wall of the blank 3, and the baffle valve 4 is concentric with the embedded part 1. After the fuel tank is opened, the baffle valve 4 is connected to the embedded part 1.

[0031] In this embodiment, in order to solve the problem of high risk of fuel leakage after ICV installation in the related art, the ICV is designed to be split, consisting of two parts: an embedded part 1 and a flapper valve 4. Before the fuel tank is blow-molded, the embedded part 1 is first placed in the molding mold 2, and then during the blow molding of the fuel tank, the parison 3 can be connected to one end of the embedded part 1. After the parison 3 is preformed, the flapper valve 4 is installed on the inner wall of the parison 3, and the flapper valve 4 is concentric with the embedded part 1. After the fuel tank is completely formed, the parison 3 between the embedded part 1 and the flapper valve 4 is opened to connect the embedded part 1 and the flapper valve 4. Compared with the traditional ICV structure, the split ICV can be installed on the fuel tank during the blow molding process of the fuel tank. As the preform 3 is formed, the preform 3 can first be covered on one end of the embedded part 1. When installing the baffle valve 4, the preform 3 is still in a high temperature state. If the temperature is not enough, the preform 3 can be heated. At this time, the baffle valve 4 is plugged into the preform 3. After the fuel tank is fully formed, the embedded part 1 and the baffle valve 4 can form a stable connection relationship with the preform 3, thereby ensuring that the ICV and the fuel tank are connected more closely and the sealing performance of the fuel tank is guaranteed.

[0032] Furthermore, the embedded part 1 has an inserting portion 101 and an abutting portion 102 . The inserting portion 101 is used to be preset on the molding die 2 . The abutting portion 102 has a first step 1021 on one side close to the inserting portion 101 . The first step 1021 abuts against the outer wall of the parison 3 .

[0033] In this embodiment, the insertion part 101 is provided to facilitate the pre-insertion of the embedded part 1 into the forming mold 2. After the preform 3 is preformed, the abutment part 102 is fixed to the preform 3. The first step 1021 is conveniently inserted into the preform 3 to form a stable connection.

[0034] Furthermore, the plug-in portion 101 has a plurality of annular protrusions 1011 at one end close to the abutting portion 102 , and the annular protrusions 1011 are used to abut against the forming mold 2 .

[0035] In this embodiment, the annular protrusion 1011 is provided to facilitate the insertion of the plug-in portion 101 into the molding die 2. The annular protrusion 1011 can play a guiding role in the process of inserting the embedded part 1 into the molding die 2. This improves the efficiency of inserting the embedded part 1 into the molding die 2, and can further better cooperate with the plug-in portion 101 and the molding die 2, without leaving a gap for the embedded part 1 to be inserted when opening a hole in the molding die 2. This improves the quality of the blow molding of the fuel tank.

[0036] Furthermore, it also includes a second step 1022, which has a large end 1023 and a small end 1024. The diameter of the large end 1023 is larger than the diameter of the small end 1024. The large end 1023 is arranged on the first step 1021, and the plug-in part 101, the abutting part 102, the first step 1021 and the second step 1022 are connected in sequence.

[0037] In this embodiment, a second step 1022 is further provided on the first step 1021. The second step 1022 is provided to increase the contact area between the embedded part 1 and the preform 3. Thus, the connection between the preform 3 and the embedded part 1 is more stable, thereby improving the air tightness of the fuel tank and reducing the risk of fuel leakage.

[0038] Furthermore, the baffle valve 4 includes a connecting cylinder 401, one end of which is arranged on the inner wall of the blank 3; one end of the valve plate 402 is rotatably arranged on the other end of the connecting cylinder 401; the first elastic member 403 is arranged at both ends respectively on the connecting cylinder 401 and the valve plate 402, and the first elastic member 403 is used to provide a force for the valve plate 402 to rotate close to the connecting cylinder 401.

[0039] In this embodiment, the flapper valve 4 is composed of a connecting tube 401, a valve plate 402 and a first elastic member 403. The first elastic member 403 provides a restoring elastic force for the valve plate 402, so that when no fuel enters the fuel tank from the connecting tube 401, the fuel tank is in a self-sealing state, and even if the staff forgets to cover the lid, the fuel can be prevented from leaking and volatilizing, thereby making the fuel tank safer and more reliable.

[0040] Furthermore, the baffle valve 4 has a groove 4011 at one end close to the preform 3 , and the groove 4011 is used to abut against the preform 3 .

[0041] In this embodiment, the contact area between the connecting tube 401 and the preform 3 is further increased by providing the slot 4011. During the installation of the baffle valve 4, the preform 3 is partially deformed in the slot 4011 and fills the entire slot 4011, thereby improving the reliability of the connection of the baffle valve 4 and preventing the baffle valve 4 from falling off due to vibration, impact, etc. during the use of the fuel tank.

[0042] Furthermore, the connecting tube 401 has a guide surface 4012 , which is located at one end of the connecting tube 401 close to the slot 4011 . The guide surface 4012 is ring-shaped, and the diameter of the guide surface 4012 close to the parison 3 is smaller than the diameter of the other end of the guide surface 4012 .

[0043] In this embodiment, in order to make it easier for the connecting cylinder 401 to be installed on the inner wall of the preform 3, a guide surface 4012 is provided at one end of the connecting cylinder 401 close to the preform 3. Since the end with a smaller diameter of the guide surface 4012 faces the preform 3, during the process of installing the baffle valve 4 by a robot or other tool, the force on the entire baffle valve 4 is more uniform, the depth of installation on the preform 3 in the entire circumferential direction can be kept consistent, and a stable connection relationship is established between the connecting cylinder 4 and the preform 3, thereby reducing the risk of fuel leakage.

[0044] Furthermore, the outer wall of the connecting tube 401 is cylindrical, and one end of the connecting tube 401 away from the parison 3 has a circulation portion 4013 and a fixing portion 4014 , and the valve plate 402 is rotatably disposed on the fixing portion 4014 .

[0045] In this embodiment, the valve plate 402 is installed on the fixed part 4014 of the connecting cylinder 401, and the circulation part 4013 is used for fuel to pass through, so that the overall shape of the connecting cylinder 401 is a regular cylindrical shape, which is convenient for equipment such as a robot to grasp and install the connecting cylinder 401. At the same time, since the entire baffle valve 4 has a regular shape, it is also more convenient to store the baffle valve 4.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A split embedded part, characterized in that: include An embedded part (1) is used to be preset on a forming mold (2) of a fuel tank, and after the fuel tank is blow-molded, one end of the embedded part (1) is connected to a preform (3) of the fuel tank; A flapper valve (4) is arranged on the inner wall of the preform (3), the flapper valve (4) being concentric with the embedded component (1), and after the fuel tank is opened, the flapper valve (4) is connected to the embedded component (1).

2. A split embedded part according to claim 1, characterized in that: The embedded part (1) comprises an inserting portion (101) and an abutting portion (102); the inserting portion (101) is used to be preset on the forming mold (2); the abutting portion (102) has a first step (1021) on a side close to the inserting portion (101); the first step (1021) abuts against an outer wall of the parison (3).

3. A split embedded part according to claim 2, characterized in that: The plug-in portion (101) has a plurality of annular protrusions (1011) at one end close to the abutting portion (102), and the annular protrusions (1011) are used to abut against the forming die (2).

4. A split embedded part according to claim 2, characterized in that: Also includes A second step (1022), wherein the second step (1022) has a large end (1023) and a small end (1024), the diameter of the large end (1023) being larger than the diameter of the small end (1024), the large end (1023) being arranged on the first step (1021), and the plug-in portion (101), the abutting portion (102), the first step (1021) and the second step (1022) being connected in sequence.

5. The split embedded part according to claim 1, characterized in that: The flapper valve (4) comprises A connecting tube (401), one end of the connecting tube (401) being arranged on the inner wall of the parison (3); a valve plate (402), one end of the valve plate (402) being rotatably disposed on the other end of the connecting tube (401); A first elastic member (403), wherein two ends of the first elastic member (403) are respectively arranged on the connecting tube (401) and the valve plate (402), and the first elastic member (403) is used to provide a force for the valve plate (402) to rotate close to the connecting tube (401).

6. A split embedded part according to claim 5, characterized in that: The baffle valve (4) has a groove (4011) at one end close to the preform (3), and the groove (4011) is used to abut against the preform (3).

7. A split embedded component according to claim 6, characterized in that: The connecting tube (401) has a guide surface (4012), the guide surface (4012) is located at one end of the connecting tube (401) close to the clamping groove (4011), the guide surface (4012) is in a ring shape, and the diameter of the guide surface (4012) at one end close to the preform (3) is smaller than the diameter of the other end of the guide surface (4012).

8. The split embedded component according to claim 5, characterized in that: The outer wall of the connecting cylinder (401) is cylindrical, and one end of the connecting cylinder (401) away from the parison (3) comprises a circulation portion (4013) and a fixing portion (4014), and the valve plate (402) is rotatably arranged on the fixing portion (4014).

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