CN210013779U - Fuel pump with underneath type fuel tank - Google Patents
Fuel pump with underneath type fuel tank Download PDFInfo
- Publication number
- CN210013779U CN210013779U CN201920466813.8U CN201920466813U CN210013779U CN 210013779 U CN210013779 U CN 210013779U CN 201920466813 U CN201920466813 U CN 201920466813U CN 210013779 U CN210013779 U CN 210013779U
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- China
- Prior art keywords
- connecting plate
- pump body
- pump
- sealing
- fuel pump
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Abstract
The utility model discloses an oil tank underneath type fuel pump, which comprises a pump body, wherein the pump body is provided with a connecting plate for connection, and the connecting plate divides the pump body into a pump body part on the upper surface of the connecting plate and a pump body part on the bottom surface of the connecting plate; the connecting plate is connected with the seal housing, the connecting plate contacts with the bottom wall of the seal housing, the pump body part of the bottom surface of the connecting plate penetrates through the bottom wall of the housing, a sealing assembly is arranged between the connecting plate and the seal housing, the oil tank underlying fuel pump improves the sealing performance of the pump body and simplifies the installation structure, the process difficulty is reduced, the installation consistency is improved, and the yield and the stability are improved.
Description
Technical Field
The utility model relates to an oil tank underlying fuel pump.
Background
The fuel pumps of the fuel tank are generally divided into an internal pump and an external pump, and the internal fuel pump can be divided into an upper pump and a lower pump according to the position of the internal fuel pump installed in the fuel tank.
The underneath type fuel pump is arranged at the bottom of the fuel tank and is soaked in fuel oil in use, so that the requirement on the sealing performance is higher, but the actual and universal installation mode is complex in structure, poor in consistency and short in actual service life.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing an oil tank is formula fuel pump down, has simple structure, uniformity height and sealed effectual advantage
The technical scheme is as follows: the utility model discloses an oil tank underneath type fuel pump, which comprises a pump body, wherein the pump body is provided with a connecting plate for connection, and the connecting plate divides the pump body into a pump body part on the connecting plate and a pump body part on the bottom surface of the connecting plate; the connecting plate is connected with a sealing shell, the connecting plate is in contact with the bottom wall of the sealing shell, the pump body part of the bottom surface of the connecting plate penetrates through the bottom wall of the shell, and a sealing assembly is arranged between the connecting plate and the sealing shell.
The sealing assembly comprises a sealing ring and a pressing plate, a connecting plate is in contact with the sealing ring, a blind hole threaded sleeve for fixing is arranged between the pressing plate and the sealing shell, the pressing plate is in contact with the connecting plate, and the pressing plate enables the connecting plate to extrude the sealing ring.
Through adopting above-mentioned technical scheme, place the sealing washer in the sealed casing, then pass the diapire of sealed casing with the pump body part of connecting plate bottom surface to the bottom surface and the lateral wall and the sealing washer contact of connecting plate, then the clamp plate passes the pump body part above the connecting plate, and the clamp plate acts on the connecting plate, then uses blind hole swivel nut fixed pressing plate and sealed casing, at fixed in-process, connecting plate extrusion sealing washer, the sealing washer is by extrusion deformation, the sealing washer has improved the leakproofness between the pump body, connecting plate and the sealed casing.
Has the advantages that: the sealing performance of the pump body is improved, the mounting structure is simplified, the process difficulty is reduced, the mounting consistency is improved, and the yield and the stability are improved.
Drawings
FIG. 1 is an exploded view of a fuel pump with an underlying fuel tank.
Detailed Description
As shown in fig. 1, the fuel pump with the underneath type fuel tank comprises a pump body 1, wherein the pump body 1 is provided with a connecting plate 2 for connection, and the connecting plate 2 divides the pump body 1 into a pump body 1 part on the upper surface of the connecting plate 2 and a pump body 1 part on the bottom surface of the connecting plate 2; the connecting plate 2 is connected with a sealing shell 3, the connecting plate 2 is contacted with the bottom wall of the sealing shell 3, the part of the pump body 1 on the bottom surface of the connecting plate 2 penetrates through the bottom wall of the shell, and a sealing assembly 4 is arranged between the connecting plate 2 and the sealing shell 3.
The sealing assembly 4 comprises a sealing ring 41 and a pressing plate 42, the connecting plate 2 is in contact with the sealing ring 41, a blind hole thread sleeve 5 for fixing is arranged between the pressing plate 42 and the sealing shell 3, the pressing plate 42 is in contact with the connecting plate 2, and the pressing plate 42 enables the connecting plate 2 to press the sealing ring 41. The sealing ring 41 is placed in the sealing shell 3, then the part of the pump body 1 on the bottom surface of the connecting plate 2 penetrates through the bottom wall of the sealing shell 3, the bottom surface and the side wall of the connecting plate 2 are in contact with the sealing ring 41, then the pressing plate 42 penetrates through the part of the pump body 1 on the connecting plate 2, the pressing plate 42 acts on the connecting plate 2, then the pressing plate 42 and the sealing shell 3 are fixed by using the blind hole thread sleeve 5, in the fixing process, the connecting plate 2 extrudes the sealing ring 41, the sealing ring 41 is extruded and deformed, and the sealing ring 41 improves the sealing performance among the pump body 1, the connecting plate 2.
The sealing ring 41 is provided with a linear sealing strip 6, the interface shape of the linear sealing ring 41 is an inverted V shape, and the linear sealing ring 41 is arranged on the part acted by the sealing ring 41 and the connecting plate 2 and the part acted by the sealing ring 41 and the sealing shell 3; the sealing ring 41 is combined with the linear sealing strip 6, so that the bottom of the connecting plate 2 can be sealed, the side wall of the connecting plate 2 can be sealed, and the linear sealing strip 6 inclines to a stress position, so that the linear sealing and the surface sealing are better in sealing effect.
The blind hole swivel nut 5 is cylindrical, and the cylinder outside of blind hole swivel nut 5 is provided with cylindrical boss 7, and the setting of boss 7 provides the welding point for the welding between convenient later stage and the connecting plate. Be equipped with on the clamp plate 42 and be used for with the chimb 8 of oil tank welded, chimb 8 sets up for the convenience later stage and the welding between the oil tank provides the welding point. The convex edge 8 and the boss 7 are arranged for welding, and meanwhile, allowance is reserved to increase the welding length, so that the sealing effect is improved.
Claims (5)
1. An oil tank underneath type fuel pump comprises a pump body (1), wherein the pump body (1) is provided with a connecting plate (2) for connection, and the pump body (1) is divided into a pump body (1) part on the upper surface of the connecting plate (2) and a pump body (1) part on the bottom surface of the connecting plate (2) by the connecting plate (2); the sealing device is characterized in that the connecting plate (2) is connected with a sealing shell (3), the connecting plate (2) is in contact with the bottom wall of the sealing shell (3), the pump body (1) on the bottom surface of the connecting plate (2) partially penetrates through the bottom wall of the shell, and a sealing assembly (4) is arranged between the connecting plate (2) and the sealing shell (3).
2. The fuel pump of claim 1, characterized in that the seal assembly (4) comprises a seal ring (41) and a pressure plate (42), the connecting plate (2) is in contact with the seal ring (41), a blind threaded sleeve (5) for fixing is provided between the pressure plate (42) and the seal housing (3), the pressure plate (42) is in contact with the connecting plate (2), and the pressure plate (42) causes the connecting plate (2) to press the seal ring (41).
3. The fuel pump of claim 1, wherein the seal ring (41) is provided with a linear seal strip (6), and the linear seal ring (41) has an inverted V-shaped interface.
4. The fuel pump with the lower fuel tank as set forth in claim 2, wherein the blind-hole threaded sleeve (5) is cylindrical, and a cylindrical boss (7) is provided on the outer side of the cylinder of the blind-hole threaded sleeve (5).
5. The fuel pump of claim 2, wherein the pressure plate (42) is provided with a flange (8) for welding to the fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920466813.8U CN210013779U (en) | 2019-04-09 | 2019-04-09 | Fuel pump with underneath type fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920466813.8U CN210013779U (en) | 2019-04-09 | 2019-04-09 | Fuel pump with underneath type fuel tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210013779U true CN210013779U (en) | 2020-02-04 |
Family
ID=69314667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920466813.8U Active CN210013779U (en) | 2019-04-09 | 2019-04-09 | Fuel pump with underneath type fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210013779U (en) |
-
2019
- 2019-04-09 CN CN201920466813.8U patent/CN210013779U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |