Injection molding oil tank

Abstract

The utility model relates to the technical field of oil tanks, in particular to an injection molding oil tank which comprises a tank body, a tank cover and a partition plate located in the tank body, the tank cover is detachably connected to the top of the tank body, and limiting grooves are formed in the front side wall and the rear side wall of an inner cavity of the tank body in the vertical direction. Limiting grooves are formed in the box body, limiting plates clamped with the limiting grooves are arranged on the two sides of the partition plate respectively, the partition plate body is further provided with a plurality of oil passing holes for oil to pass through, an oil suction port and an oil return port are further formed in the side wall of the box body, and an oil filling port is formed in the box cover. The whole structure is firm and durable, the tank cover, the partition plate and the tank body are detachable, and when the inner cavity of the tank body is cleaned, the partition plate can be conveniently disassembled and assembled, so that the cleaning work is more thorough, and oil pollution caused by residual oil is avoided.

Description

Technical Field

[0001] This utility model relates to the field of fuel tank technology, and in particular to an injection-molded fuel tank. Background Technology

[0002] Injection-molded fuel tanks are typically made of engineering plastics and manufactured using an injection molding process. Compared to traditional metal fuel tanks, injection-molded fuel tanks are lighter, stronger, more durable, and less prone to cracking, and are therefore widely used.

[0003] Chinese utility model patent CN202833351U discloses a novel hydraulic oil tank for injection molding machines, including an oil tank cover, oil pipe ports, an oil tank body, and a base. The oil tank body is mounted on the base, and oil pipe ports are installed on both sides of the oil tank body. An oil tank cover is located on top of the oil tank body, and the oil tank body has an overall V-shaped structure. The hydraulic oil tank of the injection molding machine in the above-disclosed solution is V-shaped with a rounded bottom, which greatly improves the quality and convenience of cleaning due to the absence of sharp edges. Moreover, the small bottom makes it easier to replace hydraulic oil. However, although the above-disclosed solution is easy to clean, the overall V-shaped structure of the oil tank body greatly reduces its effective volume. Furthermore, the hollow design inside the oil tank inevitably causes the oil to slosh around during vehicle operation, generating inertial forces that damage the overall structural strength of the oil tank. The structural design is unreasonable. Utility Model Content

[0004] Technical objective: In order to overcome the shortcomings of the existing technology, this utility model provides an injection-molded oil tank.

[0005] Technical Solution: To achieve the above objectives, this utility model discloses an injection-molded oil tank, comprising a tank body, a tank cover, and a partition located inside the tank body. The tank cover is detachably connected to the top of the tank body. Limiting grooves are provided on the front and rear side walls of the inner cavity of the tank body in the vertical direction. Limiting plates that engage with the limiting grooves are provided on both sides of the partition. The partition body is also provided with several oil passage holes for oil to pass through. The tank body is also provided with an oil suction port and an oil return port on the side wall. The tank cover is provided with an oil filling port.

[0006] Preferably, the limiting groove includes a first limiting groove and a second limiting groove arranged from top to bottom, the width of the first limiting groove is greater than the width of the second limiting groove, and the limiting plate includes a first limiting plate and a second limiting plate that respectively cooperate with the widths of the first limiting groove and the second limiting groove.

[0007] Preferably, the inner cavity of the box is further provided with an oil suction filter and an oil return chamber that are respectively connected to the oil suction port and the oil return port. The oil suction filter and the oil return chamber ports are respectively located on both sides of the partition. The partition is provided with a clearance groove for the oil return chamber to pass through.

[0008] Preferably, the partition body is further provided with transverse stiffeners and longitudinal stiffeners between each pair of oil passage holes.

[0009] Preferably, the box body has a stop along the outer circumferential direction at the end connected to the box cover, and the box cover has a fixed end that covers the outside of the stop, and the fixed end has a covering cavity that is interference-fitted with the stop.

[0010] Preferably, the fixed end extends into the inner cavity of the box body at the connection point with the box cover to form a limiting part.

[0011] Preferably, the top of the partition is provided with a limiting rib, and the limiting part is provided with a groove to accommodate the limiting rib.

[0012] Preferably, multiple sets of connecting ribs are provided between the stop and the box body, the side wall of the stop is provided with a sealing groove to accommodate the sealing ring, the top of the stop is provided with a first sealing strip in the circumferential direction, and the enclosed cavity is provided with a second sealing strip that contacts the first sealing strip.

[0013] Preferably, the upper end of the box is provided with a vent, the lower end with a drain outlet, and the bottom or side of the box is provided with mounting holes for assembly.

[0014] Preferably, the outer side of the box is provided with a plurality of first ribs spaced apart in the circumferential direction, and the box is provided with a plurality of second ribs spaced apart in the vertical direction and connected to the first ribs.

[0015] The beneficial effects of this utility model are:

[0016] 1. The housing, cover, and internal partitions of this device are integrally molded using injection molding, resulting in a robust and durable overall structure. The cover, partitions, and housing are detachable, allowing for easy disassembly and assembly of the partitions during cleaning of the inner cavity, ensuring a more thorough cleaning process and preventing oil contamination caused by residual oil.

[0017] 2. The connection between the tank cover, partition and tank body is simpler, without complicated connecting parts, and can be disassembled and assembled without the need for external tools. It is more convenient to change oil and thoroughly clean the inside of the tank, reducing the disassembly and assembly time for on-site operators.

[0018] 3. The baffle effectively separates the oil suction area from the oil return area, preventing the oil return from causing level disturbances and thus preventing air suction at the oil suction port. Attached Figure Description

[0019] Figure 1 This is a perspective view of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 4 Appendix to this utility model Figure 3 A magnified view of a portion of region A in the middle;

[0023] Figure 5 This is a perspective view of the box body in this utility model;

[0024] Figure 6 This is a perspective view of the partition plate of this utility model;

[0025] Figure 7 This is a bottom view of the overall structure of this utility model.

[0026] In the diagram, 1. Box body; 2. Box cover; 3. Partition; 4. First limiting groove; 5. Second limiting groove; 6. First limiting plate; 7. Second limiting plate; 8. Oil passage hole; 9. Oil suction port; 10. Oil return port; 11. Oil filling port; 12. Oil suction filter; 13. Oil return chamber; 14. Relief groove; 15. Transverse stiffener; 16. Longitudinal stiffener; 17. Stop; 18. Fixed end; 19. Enclosure cavity; 20. Limiting part; 21. Limiting rib; 22. Slot; 23. Connecting rib; 24. Sealing ring; 25. Sealing groove; 26. First sealing strip; 27. Second sealing strip; 28. Breathing port; 29. ​​Drain port; 30. Mounting hole; 31. First rib; 32. Second rib; 33. Support base; 34. Limiting plate; 35. Limiting groove. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 To be continued Figure 7 The principles and features of this utility model are described, and the examples given are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0028] A type of injection-molded fuel tank, such as Figure 1As shown, the tank includes a housing 1, a cover 2, and a partition 3 located inside the housing 1. The housing 1, cover 2, and partition 3 are all manufactured using injection molding. The upper end of the housing 1 has a vent 28, and the lower end has a drain port 29 for emptying the oil tank during cleaning or oil replacement. The housing 1 also has an oil suction port 9 and an oil return port 10 on its side walls. The cover 2 has an oil filling port 11. In this embodiment, the oil suction port 9 and the oil return port 10 are located on the same side, but they can also be located on opposite sides. Those skilled in the art can also reserve an oil level detection port on the housing 1 or cover 2 according to actual needs. The oil level detection port can be integrally formed during the injection molding process. For ease of installation, the housing 1 has mounting holes 30 at the bottom and / or sides for assembly. In this embodiment, to ensure the universality of the oil tank installation, mounting holes 30 are provided on both side walls and the bottom of the oil tank. The mounting holes 30 are integrally formed during the injection molding process. Additionally, a support base 33 can be provided on the side wall of the oil tank according to actual installation needs.

[0029] Furthermore, in order to increase the strength of the fuel tank, the tank body 1 is provided with a number of first ribs 31 spaced apart in the circumferential direction, and the tank body 1 is provided with a number of second ribs 32 spaced apart in the vertical direction that are connected to the first ribs 31.

[0030] like Figure 2 — Figure 7 As shown, the inner cavity of the housing 1 is also provided with an oil suction filter 12 and an oil return chamber 13, which are respectively connected to the oil suction port 9 and the oil return port 10. In order to avoid the oil from the oil return chamber 13 causing surface disturbance and resulting in the oil suction filter 12 being sucked into the air, the oil suction filter 12 and the oil return chamber 13 are respectively located on both sides of the partition 3. That is, the partition 3 separates the oil suction filter 12 and the oil return chamber 13. The partition 3 is provided with a clearance groove 14 for the oil return chamber 13 to pass through. The oil return chamber 13 can be a steel pipe well known to those skilled in the art, or it can be a cavity formed by bending a steel plate and the housing 1. The body of the partition 3 is also provided with several oil passage holes 8 for oil to pass through, ensuring that the oil level on both sides of the partition 3 is at the same height. Because the oil will generate motion inertia during vehicle operation and impact the contact parts, in order to improve the strength of the partition 3, the body of the partition 3 is also provided with transverse stiffeners 15 and longitudinal stiffeners 16 between each pair of oil passage holes 8.

[0031] Furthermore, to ensure thorough cleaning during oil change, the partition 3 is detachably connected to the inside of the housing 1. Specifically, the front and rear side walls of the inner cavity of the housing 1 are provided with vertically oriented limiting grooves 35, and the partition 3 is provided with limiting plates 34 on both sides that engage with the limiting grooves 35. In this embodiment, the limiting grooves 35 include a first limiting groove 4 and a second limiting groove 5 arranged from top to bottom. In order to ensure the connection strength between the partition 3 and the housing 1, the width of the first limiting groove 4 is greater than the width of the second limiting groove 5. The limiting plates 34 include a first limiting plate 6 and a second limiting plate 7 that respectively cooperate with the widths of the first limiting groove 4 and the second limiting groove 5. When cleaning the inside of the housing 1, the partition 3 can be removed from the housing 1 simply by lifting the top. During installation, the partition 3 can be fixed in the inner cavity of the housing 1 by engaging with the limiting grooves 35 and the limiting plates 34.

[0032] Furthermore, the cover 2 is detachably connected to the top of the tank body 1. To facilitate the installation and removal of the cover 2 and reduce the workload of each oil change and cleaning, the tank body 1 has a stop 17 circumferentially located on the outer edge of the end connected to the cover 2. The cover 2 has a fixed end 18 covering the outside of the stop 17. The fixed end 18 has a covering cavity 19 that is interference-fitted with the stop 17. By applying pressure to the cover 2, the cover 2 can be installed through the cooperation between the covering cavity 19 and the stop 17. Furthermore, to prevent oil leakage, the side wall of the stop 17 has a sealing groove 25 for accommodating the sealing ring 24. The sealing ring 24 forms a seal between the stop 17 and the side wall of the covering cavity 19. To increase the connection strength between the stop 17 and the housing 1 and to prevent damage to the stop 17 due to repeated disassembly and aging, multiple sets of connecting ribs 23 are provided between the stop 17 and the housing 1 to increase the connection strength between them. At the same time, a first sealing strip 26 is provided circumferentially at the top of the stop 17, and a second sealing strip 27 that contacts the first sealing strip 26 is provided inside the covering cavity 19. The first sealing strip 26 and the second sealing strip 27 are integrally formed during the injection molding process. During the assembly of the pressing cover 2, when the assembly is in place, the first sealing strip 26 contacts the second sealing strip 27. The contact between the first sealing strip 26 and the second sealing strip 27 can bear the pressing pressure from the vertical direction, preventing excessive vertical pressing pressure from acting on the stop 17 and causing damage. To further secure the partition 3, a limiting rib 21 is provided at the top of the partition 3. The fixed end 18 extends into the inner cavity of the tank body 1 at the connection point with the tank cover 2 to form a limiting part 20. The limiting part 20 is provided with a groove 22 to accommodate the limiting rib 21. After the tank cover 2 is assembled, the partition 3 can also be further limited by the groove 22. The injection-molded oil tank solution disclosed in this utility model is sturdy and durable. The connection method between the tank cover 2, the partition 3 and the tank body 1 is simpler, without cumbersome connecting parts, making it more convenient to change oil and thoroughly clean the inside of the oil tank.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An injection molded oil tank comprising a tank body (1), a tank cover (2), and a partition (3) located inside the tank body (1), characterized in that: The box cover (2) is detachably connected to the top of the box body (1), the front and rear side walls of the inner cavity of the box body (1) are provided with limiting grooves (35) in the vertical direction, the limiting plates (34) on both sides of the partition plate (3) are provided with clamping grooves (35), the partition plate (3) is further provided with a plurality of oil passing holes (8) for oil passing, the side wall of the box body (1) is further provided with an oil suction port (9) and an oil return port (10), and the box cover (2) is provided with an oil filling port (11).

2. The injection molded oil tank of claim 1, wherein: The limiting groove (35) comprises a first limiting groove (4) and a second limiting groove (5) arranged from top to bottom, the groove width of the first limiting groove (4) is greater than the groove width of the second limiting groove (5), and the limiting plate (34) comprises a first limiting plate (6) and a second limiting plate (7) matched with the groove widths of the first limiting groove (4) and the second limiting groove (5) respectively.

3. The injection molded oil tank of claim 1, wherein: The inner cavity of the box body (1) is further provided with an oil suction filter (12) and an oil return cavity (13) respectively communicating with the oil suction port (9) and the oil return port (10), the oil suction filter (12) and the oil return cavity (13) are separately arranged on both sides of the partition plate (3), and the partition plate (3) is provided with a clearance groove (14) for the oil return cavity (13) to pass through.

4. The injection molded oil tank of claim 1, wherein: The partition plate (3) is further provided with a transverse rib plate (15) and a longitudinal rib plate (16) between every two oil passing holes (8).

5. The injection molded oil tank of claim 1, wherein: The box body (1) is provided with a stop (17) around the outer edge of the connection end of the box cover (2), the box cover (2) is provided with a fixed end (18) wrapped outside the stop (17), and the fixed end (18) is provided with a wrapping cavity (19) in interference fit with the stop (17).

6. The injection molded oil tank of claim 5, wherein: The fixed end (18) and the box cover (2) are connected to form a limiting portion (20) extending into the inner cavity of the box body (1).

7. The injection molded oil tank of claim 6, wherein: The partition plate (3) is provided with a limiting convex rib (21) on the top, and the limiting portion (20) is provided with a clamping groove (22) accommodating the limiting convex rib (21).

8. The injection molded oil tank of claim 5, wherein: A plurality of connecting ribs (23) are further arranged between the stop (17) and the box body (1), a sealing groove (25) accommodating a sealing ring (24) is arranged on the side wall of the stop (17), a first sealing strip (26) is arranged on the top end of the stop (17) in the circumferential direction, and a second sealing strip (27) in contact with the first sealing strip (26) is arranged in the wrapping cavity (19).

9. The injection molded oil tank of claim 1, wherein: The box body (1) is provided with a breathing port (28) on the upper end, and a pollution discharge port (29) on the bottom end, and the box body (1) is provided with a mounting hole (30) for assembly on the bottom and / or side.

10. The injection molded oil tank of claim 1, wherein: The outer part of the box body (1) is provided with a plurality of first rib plates (31) in the circumferential direction, and a plurality of second rib plates (32) are arranged in the vertical direction and connected with the first rib plates (31).

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