Commercial vehicle fuel tank with inner baffle bracket device and installation method

Abstract

The present invention discloses a commercial vehicle fuel tank with an inner partition support device and an installation method, belonging to the field of fuel tank manufacturing. A support is provided and a connecting structure is provided on the support. The buffer (spring gasket or rubber pad) on the connecting structure is used to eliminate the phenomenon of over-constraint in the rigid connection between the inner partition and the support, so that the entire assembly has good deformation compliance. The connecting structure is another case of using a first shell and a second shell connected by a sliding sleeve, a connecting piece, a spring, a rotating rod, a gear, a rack, a screw and a sealing sleeve. The screw is used to cooperate with the threaded hole on the connecting piece to shorten the distance between the connecting piece. At the same time, the spring acts on its sliding sleeve and drives the rack to move forward. During the forward movement of the rack, the gear rotates, thereby driving the rotating rod to rotate and clamp its clamping part in the mounting groove of the second shell, so as to realize the connection between the support and the inner partition. When the inner partition receives an impact force, the spring will buffer it to ensure its good deformation compliance.

Description

Technical Field

[0001] The invention belongs to the technical field of fuel tank manufacturing, and specifically relates to a commercial vehicle fuel tank with an inner partition bracket device and an installation method. Background Art

[0002] The inner baffle is a key component of the commercial vehicle fuel tank. Its main function is to improve the overall rigidity of the fuel tank and ensure that the fuel tank does not deform too much under the action of external force. At the same time, the inner baffle can also reduce the negative effects such as noise caused by the impact of the fuel sloshing in the tank on the tank body. The fuel tank body and the inner baffle are mostly designed and manufactured by stamping sheet metal parts. The assembly and connection process between the tank body and the inner baffle has an important impact on the working reliability of the fuel tank assembly. In order to avoid damage to the fuel tank body or excessive welding deformation, a vehicle fuel tank with patent announcement number CN105416041B is provided with a positioning groove on the side wall of the tank body, and the first baffle and the second baffle are installed in the positioning groove. At the same time, a transverse baffle is welded to achieve support. After long-term use, the positioning between the transverse baffle and the first baffle and the second baffle will become loose and separate and lose its function. Patent announcement number CN204432377U is a fuel tank inner baffle, and patent announcement number CN202294261U is a fuel tank. Both of them adopt the design scheme of fixing the inner baffle by pressing the box body ribs and the positioning arc grooves on the baffle. This type of assembly scheme adopts the combined positioning working principle of interference fit plus mechanical limit. For commercial vehicle fuel tanks, especially heavy-duty trucks, the oil storage capacity and tank volume are very large. When the vehicle goes uphill and downhill and in various complex speed-changing conditions, the fuel will produce huge and non-uniform impact dynamic loads on the inner baffle. Under the long-term action of this impact dynamic load, fatigue wear is prone to occur at the junction of the inner baffle and the inner wall of the box, which leads to undesirable phenomena such as loose positioning, tilting, and even detachment of the inner baffle. Summary of the invention

[0003] The present invention aims to solve the deficiencies in the prior art, and therefore proposes a commercial vehicle fuel tank with an inner baffle bracket device and an installation method.

[0004] In order to achieve the above object, the present invention adopts the following scheme:

[0005] A commercial vehicle fuel tank with an inner baffle support device comprises a tank body, an inner baffle and a support, wherein the tank body is provided with a rib, the inner baffle is located inside the tank body and is provided with at least two ribs, each of the inner baffles is provided with an oil through hole, the outer peripheral surface of each inner baffle is provided with a flange structure and the flange structure is provided with a positioning groove matching the rib, the support is provided with a connecting structure, and the support connects two adjacent inner baffles into a whole through the connecting structure.

[0006] A further improvement of the present invention is that a plurality of wave-proof conical protrusions are provided on the inner partition.

[0007] A further improvement of the present invention is that the height of the positioning groove and the pressure rib on one side close to the middle of the box body is greater than that on the side away from the middle of the box body.

[0008] A further improvement of the present invention is that the outer peripheral surface of the inner partition and the box body are respectively provided with matching anti-slip patterns.

[0009] A further improvement of the present invention is that the supports between two adjacent inner partitions are provided with two groups, each group of the supports includes two cross-arranged connecting plates, and both ends of the connecting plates are provided with flanges for setting a connecting structure.

[0010] A further improvement of the present invention is that the connection structure includes a connecting bolt and a buffer, the connecting bolt is arranged on the flange structure of the connecting plate and connected to the inner partition, the buffer is a spring gasket or a rubber gasket, and the buffer is located between the connecting plate and the inner partition.

[0011] A further improvement of the present scheme, the connecting structure includes a first shell, a slider, a rotating rod, a second shell and a screw, the first shell is arranged on the flange of the connecting plate, the slider is movably arranged inside the first shell, a cavity is opened on the side wall of the slider facing away from the first shell, a spring and a connecting piece are arranged in the cavity, the connecting piece is connected to the cavity through the spring, a threaded hole is provided at one end of the connecting piece away from the slider, racks are fixedly connected on the two opposite side walls of the slider, two rotating rods are symmetrically arranged with the slider as the center, one end of the two rotating rods is provided with a gear meshing with the rack, the two gears are rotatably connected in the first shell, the other end of the two rotating rods is provided with a clamping part, the second shell is fixedly arranged on the inner partition, the side of the second shell facing away from the inner partition is open and sealed on the outside of the first shell, a positioning groove matching the clamping part is provided in the second shell, the screw is movably arranged on the inner partition and the end with a thread cooperates with the threaded hole.

[0012] The present invention also discloses a method for installing a commercial vehicle fuel tank with an inner partition bracket device, comprising the following steps:

[0013] S1. The outer circumference of the box body and the inner partition are both stamped by a stamping process to form ribs on the box body and positioning grooves on the outer circumference of the inner partition;

[0014] S2. Connect the support to one of the inner partitions through the connecting structure, and use the screws to match the threaded holes of the connecting piece. When the connecting piece moves, the slider moves toward the inner partition through the action of the spring. The slider drives the rack to move and then rotates the gear. The rotating rod rotates with the gear to the clamping part and moves to the installation groove of the second shell. After the connection is fixed, the support and the inner partition are inserted into the box from one side and installed on the inner side of the box through the positioning groove and the rib on the inner partition.

[0015] S3, insert another inner partition into the box body from the other side of the box body and install it on the inner side of the box body through the positioning groove and the rib on the inner partition;

[0016] S4, squeeze the first shell on the flange of the support, and use the screws on the inner partition to be connected to connect with the connecting piece in the first shell, so that the clamping part moves into the installation groove of the second shell on the inner partition to be connected;

[0017] S5. Seal both sides of the box.

[0018] Compared with the prior art, the present invention can achieve the following technical effects:

[0019] 1. The utility model is provided with a support and a connecting structure on the support. The buffer (spring gasket or rubber pad) on the connecting structure is used to eliminate the phenomenon of over-constraint in the rigid connection between the inner partition and the support, so that the entire assembly has good deformation compliance. The connecting structure is another case of using a first shell and a second shell connected by a sliding sleeve, a connecting piece, a spring, a rotating rod, a gear, a rack, a screw, and a sealing sleeve. The screw is used to cooperate with the threaded hole on the connecting piece to shorten the distance between the connecting piece and the spring. At the same time, the spring acts on its sliding sleeve and drives the rack forward. During the forward movement of the rack, the gear rotates, which in turn drives the rotating rod to rotate and clamp its clamping part in the mounting groove of the second shell, so as to realize the connection between the support and the inner partition. When the inner partition receives an impact force, the spring will buffer it to ensure its good deformation compliance.

[0020] 2. In the utility model, the outer peripheral surface of the inner partition and the box body are provided with anti-skid patterns to increase the resistance of the inner partition to lateral movement, thereby ensuring the overall quality of the fuel tank. The inner partition is provided with a number of anti-wave conical convex parts. The anti-wave conical convex parts can effectively eliminate the effect of oil sloshing generated when the vehicle is driving on complex roads on the surface of the inner partition, thereby reducing the probability of the inner partition being offset or damaged. The height of the positioning groove and the rib close to the middle of the box body is greater than the side away from the middle of the box body. The different heights of the two sides and the support can further prevent the movement of the inner partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 The connection structure in Example 1;

[0023] Figure 3 This is the connection structure in Example 2.

[0024] In the figure: 1. box body; 2. inner partition; 3. support; 4. oil through hole; 5. positioning groove; 6. connecting plate; 7. connecting bolt; 8. buffer; 9. first shell; 10. slider; 11. rotating rod; 12. second shell; 13. screw; 14. spring; 15. connecting piece; 16. rack; 17. gear; 18. clamping part. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] Embodiment 1:

[0027] like Figure 1 and Figure 2 As shown, a commercial vehicle fuel tank with an inner baffle support device includes a tank body 1, an inner baffle 2 and a support 3. The tank body 1 is provided with a rib, and the inner baffle 2 is located inside the tank body 1 and is provided with at least two. Each inner baffle 2 is provided with an oil through hole 4, and the outer peripheral surface of each inner baffle 2 is provided with a flange structure and the flange structure is provided with a positioning groove 5 matching the rib. The support 3 is provided with a connecting structure, and the support 3 connects two adjacent inner baffles 2 into a whole through the connecting structure.

[0028] As a further improvement of the present invention, a plurality of wave-breaking conical protrusions are provided on the inner partition 2. The wave-breaking conical protrusions can effectively eliminate the effect of oil sloshing generated when the vehicle is driving on complex roads on the surface of the inner partition 2, thereby reducing the probability of the inner partition 2 being offset or damaged.

[0029] A further improvement of the present invention is that the height of the positioning groove 5 and the rib close to the middle of the box body 1 is greater than that of the side away from the middle of the box body 1. The different heights on both sides, combined with the support 3, can further prevent the movement of the inner partition 2.

[0030] As a further improvement of the present solution, matching anti-skid patterns are provided on the outer peripheral surface of the inner partition 2 and the box body 1, respectively, so as to increase the resistance of the lateral movement of the inner partition 2, thereby ensuring the overall quality of the fuel tank.

[0031] A further improvement of the present scheme is that two groups of supports 3 are provided between two adjacent inner partitions 2, and each group of supports 3 includes two cross-arranged connecting plates 6, and the connecting plates 6 are formed by stamping of sheet metal. Both ends of the two connecting plates 6 are provided with flanges for setting a connecting structure, and the two ends of the connecting plates 6 are respectively connected to the upper side of the inner partition 2 and the lower side of the other one. The stability between the two inner partitions 2 can be ensured by using two cross-arranged connecting plates 6.

[0032] A further improvement of this solution is that the connection structure includes a connection bolt 7 and a buffer 8. The connection bolt 7 is arranged on the flange structure of the connection plate 6 and connected to the inner partition 2. The buffer 8 is a rubber pad and is located between the connection plate 6 and the inner partition 2. When the fuel sloshes and generates a unidirectional impact load on the lower side of one of the inner partitions 2, part of the load will be transmitted to the upper side of the other inner partition 2 through the support 3, so that the difference in the same direction of the force on the upper and lower sides of the inner partition 2 is reduced. Under this stress state, the movement correlation between the inner partition 2 and the support 3 is stronger, and the integral structure has a higher support stiffness, which can effectively improve the reliability of the fuel tank operation.

[0033] Embodiment 2:

[0034] like Figure 1 and Figure 3The difference between the embodiment 1 and the embodiment 1 is that the connection structure includes a first housing 9, a slider 10, a rotating rod 11, a second housing 12 and a screw 13. The first housing 9 is arranged on the flange of the connecting plate 6. The slider 10 is movably arranged inside the first housing 9. The slider 10 can move back and forth inside the first housing 9. A cavity is provided on a side wall of the slider 10 facing away from the first housing 9. A spring 14 and a connecting member 15 are provided in the cavity. The connecting member 15 is connected to the cavity through the spring 14. The spring 14 is used to flexibly connect the connecting member 15 to the cavity. A threaded hole is provided at one end of the connecting member 15 away from the slider 10, and racks 16 are fixedly connected to the opposite side walls of the slider 10. Two rotating rods 11 are symmetrically provided with the slider 10 as the center, and one end of the two rotating rods 11 is provided with a gear 17 meshing with the rack 16. The two gears 17 are rotatably connected in the first shell 9. The other ends of the two rotating rods 11 are provided with a clamping portion 18. The second shell 12 is fixedly set on the inner partition 2, and the side of the second shell 12 facing away from the inner partition 2 is open and sealed on the outside of the first shell 9. A positioning groove matching the clamping portion 18 is provided in the second shell 12, and the screw 13 is movably set on the inner partition 2 and the end with a thread cooperates with the threaded hole. It is connected by screws 13 and connecting parts 15. When the oil impacts the lower side or upper side of the inner partition 2, the spring 14 buffers it to the upper side or lower side of the other inner partition 2, thereby reducing the difference in force between the upper and lower sides of the two inner partitions 2. Under this force state, the movement correlation between the inner partition 2 and the support 3 is stronger, and the overall composition has a higher supporting stiffness, which can effectively improve the reliability of the fuel tank operation.

[0035] Embodiment 3:

[0036] like Figure 1 and Figure 3 As shown, a method for installing a commercial vehicle fuel tank with an inner partition bracket device includes the following steps:

[0037] S1, the outer circumference of the box body 1 and the inner partition 2 are both stamped by a stamping process to form ribs on the box body 1 and positioning grooves 5 on the outer circumference of the inner partition 2;

[0038] S2, connect the support 3 to one of the inner partitions 2 through the connecting structure, use the screw 13 to cooperate with the threaded hole of the connecting member 15, and the connecting member 15 moves while the slider 10 moves toward the inner partition 2 through the action of the spring 14, and the slider 10 drives the rack 16 to move and then rotate the gear 17, and the rotating rod 11 rotates with the gear 17 to the clamping part 18 and moves to the installation groove of the second shell 12. After the connection and fixation, the support 3 and the inner partition 2 are inserted into the box body 1 from one side and installed on the inner side of the box body 1 through the positioning groove 5 and the pressure rib on the inner partition 2;

[0039] S3, another inner partition 2 is inserted into the box body 1 from the other side of the box body 1 and installed on the inner side of the box body 1 through the positioning groove 5 on the inner partition 2 and the rib;

[0040] S4, squeeze the first shell 9 located on the flange of the support 3, and use the screws 13 on the inner partition 2 to be connected to connect with the connecting piece 15 in the first shell 9, so that the clamping part 18 moves to the installation groove of the second shell 12 on the inner partition 2 to be connected;

[0041] S5, sealing both sides of the box body 1.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A commercial vehicle fuel tank with an inner baffle support device, characterized in that: The invention comprises a box body (1), an inner partition (2) and a support (3), wherein the box body (1) is provided with a rib, the inner partition (2) is located inside the box body (1) and is provided with at least two ribs, each inner partition (2) is provided with an oil through hole (4), the outer peripheral surface of each inner partition (2) is provided with a flange structure and the flange structure is provided with a positioning groove (5) matching the rib, and the support (3) is provided with a connecting structure, and the support (3) connects two adjacent inner partitions (2) into a whole through the connecting structure; The connection structure comprises a first housing (9), a slider (10), a rotating rod (11), a second housing (12) and a screw (13); the first housing (9) is arranged on the flange of the connecting plate (6); the slider (10) is movably arranged inside the first housing (9); a cavity is provided on a side wall of the slider (10) which is away from the first housing (9); a spring (14) and a connecting member (15) are provided in the cavity; the connecting member (15) is connected to the cavity through the spring (14); a threaded hole is provided on one end of the connecting member (15) which is away from the slider (10); racks (16) are fixedly connected to the two opposite side walls of the slider (10); the rotating rod (11) Two rotating rods (11) are symmetrically arranged around the slider (10), one end of each of the two rotating rods (11) is provided with a gear (17) meshing with the rack (16), and the two gears (17) are rotatably connected in the first shell (9). The other ends of the two rotating rods (11) are provided with a clamping portion (18). The second shell (12) is fixedly arranged on the inner partition (2), and the side of the second shell (12) facing away from the inner partition (2) is open and sealed on the outer side of the first shell (9). A positioning groove matching the clamping portion (18) is provided in the second shell (12), and the screw (13) is movably arranged on the inner partition (2) and one end with a thread matches the threaded hole.

2. A commercial vehicle fuel tank with an inner partition bracket device according to claim 1, characterized in that: The inner partition (2) is provided with a plurality of wave-proof conical protrusions.

3. A commercial vehicle fuel tank with an inner partition bracket device according to claim 1, characterized in that: The height of the positioning groove (5) and the pressure rib on the side close to the middle of the box body (1) is greater than that on the side away from the middle of the box body (1).

4. A commercial vehicle fuel tank with an inner partition bracket device according to claim 1, characterized in that: The outer peripheral surface of the inner partition plate (2) and the box body (1) are respectively provided with matching anti-slip patterns.

5. A commercial vehicle fuel tank with an inner partition bracket device according to claim 1, characterized in that: Two groups of supports (3) are provided between two adjacent inner partitions (2), and each group of supports (3) comprises two cross-arranged connecting plates (6), and flanges for setting a connecting structure are provided at both ends of the connecting plates (6).

6. A method for installing a commercial vehicle fuel tank with an inner partition bracket device according to claim 1, characterized in that: The following steps are included: S1. The outer circumferential surfaces of the box body (1) and the inner partition (2) are both subjected to a stamping process to form ribs on the box body (1) and to form positioning grooves (5) on the outer circumferential surface of the inner partition (2); S2, the support (3) is connected to one of the inner partitions (2) through the connecting structure, and the screw (13) is matched with the threaded hole of the connecting member (15). When the connecting member (15) moves, the slider (10) is moved toward the inner partition (2) through the action of the spring (14). The slider (10) drives the rack (16) to move and then rotates the gear (17). The rotating rod (11) rotates with the gear (17) to the clamping part (18) and moves to the installation groove of the second shell (12). After the connection and fixation, the support (3) and the inner partition (2) are inserted into the box body (1) from one side and are installed on the inner side of the box body (1) through the positioning groove (5) and the pressure rib on the inner partition (2); S3, inserting another inner partition (2) into the box body (1) from the other side of the box body (1) and installing it on the inner side of the box body (1) by matching the positioning groove (5) and the pressure rib on the inner partition (2); S4, squeeze the first shell (9) located on the flange of the support (3), and simultaneously connect it with the connecting piece (15) in the first shell (9) by using the screw (13) on the inner partition (2) to be connected, so that the clamping part (18) moves into the installation groove of the second shell (12) on the inner partition (2) to be connected; S5. Seal both sides of the box body (1).

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