Fixing support for plastic high-pressure fuel tank

Abstract

The utility model provides a fixing support for a plastic high-pressure fuel tank, which comprises a fixing support, one side of the fixing support is welded and fixed with a fuel tank main body through a fuel tank welding surface, the top of the fixing support is provided with a bushing mounting hole for fixing a metal bushing, and a fixing bracket is embedded and inserted in the fixing support. The middle of the fixing bracket is in threaded connection with a fixing bolt, and the fixing bolt is inserted into the bolt mounting hole in a penetrating mode. The periphery of the plastic fuel tank is supported through cooperation of the fixing support and the fixing bracket, so that the problem that the fuel tank cannot be supported in a bandage fixing mode due to the fact that a vehicle body is limited is solved, and the fuel tank can be accurately installed at the narrow position of the vehicle body; the periphery of the fuel tank is synchronously stabilized in a bandage fixing mode and a fixing support supporting mode and is matched with the fixing bracket to achieve rapid locking, the problem of loosening possibly caused by installation position deviation is solved, and the installation stability of the fuel tank is effectively improved.

Description

Technical Field

[0001] The utility model relates to a fixing bracket for a plastic high-pressure fuel tank. Background Art

[0002] A fuel tank, commonly known as a fuel tank, is a container for storing fuel required by mechanical equipment such as automobiles. A fuel tank is usually closed to prevent fuel leakage and is equipped with fuel inlets and outlets, vents, fuel gauge sensors, etc. Plastic fuel tanks are lighter than metal tanks and, in some cases, have lower permeability to fuel. The fuel tank also helps to dissipate the heat generated by the fuel pump and fuel filter. The fuel tank delivers fuel to the engine or other components that need fuel through the fuel pump and fuel lines.

[0003] Nowadays, the layout of the fuel tank system on the car is becoming more and more compact. In many cases, the body cannot be arranged with the strap mounting holes. However, in order to balance the downward gravity of the fuel tank and the safety of the fuel tank fixation under various road conditions, it is necessary to use another fixing bracket to fix the fuel tank where the strap is not suitable. In order to ensure that the fuel tank is installed in place and tightened to reduce errors, it is necessary to set the fuel tank and its fixing bracket with relatively accurate accuracy according to the body structure. However, deviations are prone to occur during the installation process, resulting in looseness and inability to effectively tighten, which is easy to cause looseness during vehicle driving and affect the service life of the plastic fuel tank. Utility Model Content

[0004] The utility model provides a fixing bracket for a plastic high-pressure fuel tank in order to solve the technical problem that deviation is easy to occur when the fuel tank is installed through a fixing bracket.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a fixing bracket for a plastic high-pressure fuel tank, comprising:

[0007] A fixing bracket, one side of which is welded and fixed to the fuel tank body through the fuel tank welding surface, a bushing mounting hole for fixing a metal bushing is opened on the top of the fixing bracket, a fixing bracket installed on the vehicle body is embedded and inserted inside the fixing bracket, the middle part of the fixing bracket is threadedly connected with the fixing bolt, and the fixing bolt and the metal bushing form a bolt mounting hole and are inserted through the inside.

[0008] In the technical solution, the cross section of the fixing bracket is a triangular structure and is closely connected to the side wall of the oil tank body. The oil tank welding surface at the connection between the oil tank body and the fixing bracket is composed of a plurality of protrusions.

[0009] In the technical solution, the top of the fixing bracket is embedded with the metal bushing, and symmetrically distributed sockets are provided on both sides of the fixing bracket.

[0010] In the technical solution, the fixing brackets are evenly distributed on the outer wall of the oil tank body, and a fixing bracket is provided inside each fixing bracket.

[0011] In the technical solution, the fixing bracket is a square structure and is inserted into the inside of the fixing bracket. Two abutting blocks are rotatably connected to both sides of the fixing bracket, and the two abutting blocks are both closely connected to the inner wall of the fixing bracket.

[0012] In the technical solution, an insert block is fixedly connected to the top of the abutting block, and the insert block is engaged and plugged into the inside of the socket.

[0013] In the technical solution, the abutting blocks are symmetrically distributed on both sides of the top of the fixing bracket, and the tops of the adjacent surfaces of the two abutting blocks are provided with symmetrically distributed inclined surfaces.

[0014] In the technical solution, the metal bushing is an annular structure and is embedded and fixed in the bushing mounting hole. The width of the bushing mounting hole is greater than the diameter of the fixing bolt.

[0015] In the technical solution, a head is provided at the end of the fixing bolt, the diameter of the head is larger than the diameter of the fixing bolt, and the diameter of the head is the same as the width of the metal bushing and is embedded and plugged into the inside of the metal bushing.

[0016] In the technical solution, a transition surface is provided at the connection between the end head and the fixing bolt, the diameter of the fixing bolt is the same as the distance between the two abutting blocks, and the inclined surface at the top of the abutting block contacts the transition surface.

[0017] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0018] The positive and progressive effects of the utility model are:

[0019] The above-proposed fixing bracket for the plastic high-pressure fuel tank supports the periphery of the plastic fuel tank by the cooperation of the fixing bracket and the fixing bracket, so as to solve the problem that the fuel tank cannot be supported by the fixing method of the straps due to the limitation of the vehicle body. While the fuel tank can be accurately installed in a narrow position of the vehicle body, the periphery of the fuel tank is simultaneously stabilized by the fixing method of the straps and the supporting method of the fixing bracket, and cooperates with the fixing bracket to achieve rapid locking, thereby solving the looseness problem that may occur due to the deviation of the installation position and effectively improving the stability of the fuel tank installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0021] Figure 2It is a schematic diagram of the three-dimensional structure of the fixing bracket of the utility model.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the welding surface of the oil tank of the utility model.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the metal bushing of the utility model.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing bracket of the utility model.

[0025] Description of Reference Numerals

[0026] 1. Fixed bracket; 2. Bushing installation hole; 3. Fuel tank body; 4. Fuel tank welding surface; 5. Metal bushing; 6. Bolt installation hole; 7. Socket; 8. Fixed bracket; 9. Tightening block; 10. Inclined surface; 11. Insert block; 12. Fixed bolt; 13. End; 14. Transition surface. DETAILED DESCRIPTION

[0027] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0028] like Figure 1-5 As shown, the fixing bracket for the plastic high-pressure fuel tank includes:

[0029] A fixing bracket 1, one side of which is welded and fixed to the tank body 3 via the tank welding surface 4, a bushing mounting hole 2 for fixing a metal bushing 5 is provided on the top of the fixing bracket 1, a fixing bracket 8 mounted on the vehicle body is inserted and engaged inside the fixing bracket 1, a fixing bolt 12 is threadedly connected to the middle portion of the fixing bracket 8, and the fixing bolt 12 is inserted through the bolt mounting hole 6 formed by the metal bushing 5.

[0030] In the present technical solution, the cross-section of the fixing bracket 1 is a triangular structure and is fitted and connected to the side wall of the tank body 3. The tank welding surface 4 at the connection between the tank body 3 and the fixing bracket 1 is composed of a plurality of protrusions. The connection between the fixing bracket 1 and the tank body 3 is achieved through the tank welding surface 4, and the welding and fixing are achieved by hot melting.

[0031] In the present technical solution, the top of the fixing bracket 1 is fitted with the metal bushing 5 , and both sides of the fixing bracket 1 are provided with symmetrically distributed sockets 7 , and the top of the fixing bracket 1 can be used for installing the metal bushing 5 .

[0032] In the present technical solution, the fixing brackets 1 are evenly distributed to the outer wall of the fuel tank body 3, and each fixing bracket 1 is provided with a fixing bracket 8 inside. The fixing bracket 8 supports the fixing bracket 1 so that the fuel tank body 3 can be stably installed in the vehicle body.

[0033] In the present technical solution, the fixed bracket 8 is a square structure and is inserted into the interior of the fixed bracket 1. Two tightening blocks 9 are rotatably connected to both sides of the fixed bracket 8, and the two tightening blocks 9 are both tightly connected to the inner wall of the fixed bracket 1. During installation, the fixed bracket 1 is sleeved on the surface of the fixed bracket 8. At this time, the two tightening blocks 9 are both located inside the fixed bracket 1. When the insert block 11 of the tightening block 9 is inserted into the socket 7, the tightening block 9 is tightly connected to the inner wall of the fixed bracket 1.

[0034] In the present technical solution, an insert block 11 is fixedly connected to the top of the clamping block 9, and the insert block 11 is engaged and plugged into the inside of the socket 7. When the clamping block 9 rotates around its bottom, the insert block 11 is driven to move inside the built-in socket 7, thereby limiting the fixed bracket 1. At the same time, the clamping block 9 is pressed to lock the position of the fixed bracket 1.

[0035] In the present technical solution, the clamping blocks 9 are symmetrically distributed on both sides of the top of the fixing bracket 8, and the tops of the adjacent surfaces of the two clamping blocks 9 are provided with symmetrically distributed inclined surfaces 10. The inclined surfaces 10 can facilitate the contact between the fixing bolts 12 and the transition surface 14 during installation.

[0036] In the present technical solution, the metal bushing 5 is an annular structure and is embedded and fixed inside the bushing mounting hole 2. The width of the bushing mounting hole 2 is greater than the diameter of the fixing bolt 12. When the fixing bolt 12 is installed, its end 13 is inserted into the metal bushing 5. At this time, the fixing bolt 12 is tightened inside the fixing bracket 8.

[0037] In the present technical solution, an end portion of the fixing bolt 12 is provided with an end head 13, the diameter of which is larger than the diameter of the fixing bolt 12, and the diameter of the end head 13 is the same as the width of the metal bushing 5 and is embedded in the metal bushing 5. The plug-in end head 13 can cooperate with the metal bushing 5 to achieve limiting, and the fixing bracket 1 can be installed on the fixing bracket 8.

[0038] In the present technical solution, a transition surface 14 is provided at the connection between the end head 13 and the fixing bolt 12. The diameter of the fixing bolt 12 is the same as the distance between the two clamping blocks 9, and the inclined surface 10 on the top of the clamping block 9 contacts the transition surface 14. When the fixing bolt 12 is tightened, the end head 13 passes through the metal bushing 5 and drives the transition surface 14 to move to the inclined surface 10. When contacting the inclined surface 10, it pushes the clamping block 9 to open to both sides, thereby driving the plug block 11 to be inserted into the socket 7.

[0039] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A fixing bracket for a plastic high-pressure fuel tank, characterized in that: include: A fixing bracket (1), one side of which is fixedly welded to a fuel tank body (3) via a fuel tank welding surface (4), a bushing mounting hole (2) for fixing a metal bushing (5) is provided at the top of the fixing bracket (1), a fixing bracket (8) mounted on a vehicle body is inserted and engaged inside the fixing bracket (1), a fixing bolt (12) is threadedly connected to the middle of the fixing bracket (8), and the fixing bolt (12) is inserted and engaged with the bolt mounting hole (6) formed by the metal bushing (5).

2. The fixing bracket for a plastic high-pressure fuel tank according to claim 1, characterized in that: The cross section of the fixing bracket (1) is a triangular structure and is fitted and connected to the side wall of the oil tank body (3); the oil tank welding surface (4) at the connection between the oil tank body (3) and the fixing bracket (1) is composed of a plurality of protrusions.

3. The fixing bracket for a plastic high-pressure fuel tank according to claim 1, characterized in that: The top of the fixing bracket (1) is fitted with a metal bushing (5), and both sides of the fixing bracket (1) are provided with symmetrically distributed sockets (7).

4. The fixing bracket for a plastic high-pressure fuel tank according to claim 1, characterized in that: The fixing brackets (1) are evenly distributed on the outer wall of the oil tank body (3), and a fixing bracket (8) is provided inside each fixing bracket (1).

5. The fixing bracket for a plastic high-pressure fuel tank according to claim 1, characterized in that: The fixed bracket (8) is a square structure and is inserted into the interior of the fixed bracket (1). Two abutment blocks (9) are rotatably connected to both sides of the fixed bracket (8), and the two abutment blocks (9) are both closely connected to the inner wall of the fixed bracket (1).

6. The fixing bracket for a plastic high-pressure fuel tank according to claim 5, characterized in that: An insert block (11) is fixedly connected to the top of the abutting block (9), and the insert block (11) is engaged and plugged into the inside of the socket (7).

7. The fixing bracket for a plastic high-pressure fuel tank according to claim 5, characterized in that: The abutting blocks (9) are symmetrically distributed on both sides of the top of the fixing bracket (8), and the tops of the adjacent surfaces of the two abutting blocks (9) are provided with symmetrically distributed inclined surfaces (10).

8. The fixing bracket for a plastic high-pressure fuel tank according to claim 1, characterized in that: The metal bushing (5) is an annular structure and is embedded and fixed inside the bushing mounting hole (2); the width of the bushing mounting hole (2) is greater than the diameter of the fixing bolt (12).

9. The fixing bracket for a plastic high-pressure fuel tank according to claim 1, characterized in that: The end of the fixing bolt (12) is provided with an end head (13), the diameter of which is larger than the diameter of the fixing bolt (12), and the diameter of the end head (13) is the same as the width of the metal bushing (5) and is embedded and plugged into the inside of the metal bushing (5).

10. The fixing bracket for a plastic high-pressure fuel tank according to claim 9, characterized in that: A transition surface (14) is provided at the connection between the end head (13) and the fixing bolt (12); the diameter of the fixing bolt (12) is the same as the distance between the two abutting blocks (9); and the inclined surface (10) at the top of the abutting block (9) is in contact with the transition surface (14).

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