Novel fuel pump oil storage barrel siphon integrated module

Abstract

The utility model discloses a novel fuel pump oil storage barrel siphon integration module which comprises an oil storage barrel, a pump core support and an oil pump, the oil pump is used for pumping out gasoline in the oil storage barrel, the pump core support is fixed at the upper end of the oil storage barrel, and the oil pump is fixed in the pump core support. According to the utility model, the functions of gasoline siphon and oil return injection can be respectively realized by installing the siphon assembly or the injection assembly, and parts such as the pump core bracket, the oil pump and the oil storage barrel in the gasoline engine can be universal, so that the universality is strong; by arranging the oil return limiting rib, the support oil return annular rib plate, the support oil return clamping groove and other components, it is guaranteed that reverse installation can not happen in the installation process, the connection strength is guaranteed, assembling is convenient, the requirement for operating skills of workers is low in the production, assembly, maintenance and replacement process, and the support is easy to operate and rework.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel pumps, in particular to a novel fuel pump oil storage barrel siphon integrated module. Background Art

[0002] The automobile fuel pump assembly is one of the basic components of the automobile fuel injection system. Its function is to suck the fuel out of the fuel tank or oil storage barrel, and the fuel pressure regulating valve cooperates synchronously to establish a certain fuel pressure. After pressurization, the fuel is delivered to the fuel supply pipeline for the normal operation of the engine.

[0003] Most of the existing oil storage barrels have only one function, that is, they only have the gasoline siphon or oil return injection function, and their versatility is poor. Different models of fuel pump bracket assemblies need to be re-molded and produced. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a novel siphon integrated module for a fuel pump oil storage barrel, which is used to solve the problem that the existing oil storage barrel can only perform oil suction and oil storage work in a single mode.

[0005] The utility model provides the following technical solutions: a novel fuel pump oil storage barrel siphon integrated module, comprising an oil storage barrel, a pump core bracket and an oil pump, wherein the oil pump is used to extract gasoline from the oil storage barrel, the pump core bracket is fixed at the upper end of the oil storage barrel, and the oil pump is fixed in the pump core bracket, and also comprises a siphon component and an ejector component;

[0006] The siphon assembly includes a siphon seat assembly, wherein the siphon seat assembly is provided with two siphon first truncated cones and a siphon second truncated cone extending upward, and a siphon oil nozzle is provided in the lower side of the siphon seat assembly, and two bracket oil nozzles are provided in the pump core bracket, and the bracket oil nozzles extend to the upper and lower sides of the pump core bracket, and the siphon seat assembly is detachably fixed to the pump core bracket so that the siphon first truncated cone and the siphon second truncated cone can be connected with the bracket oil nozzle;

[0007] The ejector assembly comprises an oil return plastic seat, which is detachably fixed to the pump core bracket, and the oil return plastic seat is connected to the ejector assembly via a connecting mechanism, so that the oil return straight oil nozzle in the oil return plastic seat can be connected to the ejector assembly;

[0008] The ejector seat assembly is provided with an ejector oil outlet pipe, the ejector oil outlet pipe and the siphon oil nozzle can be located in the oil storage barrel, and the ejector seat assembly is provided with an ejector straight oil nozzle, which is connected to the gasoline outside the oil storage barrel.

[0009] Preferably, a bracket oil return annular rib is provided on the lower side of the pump core bracket, and two bracket oil return hooks are arranged on the bracket oil return annular rib, and an oil return limit buckle which can be buckled with the bracket oil return hook is provided on the oil return plastic seat, so that the oil return plastic seat can be fixed in the bracket oil return annular rib, and the oil return nozzle installed in the oil return plastic seat can extend to the upper side of the pump core bracket, and the oil return nozzle is connected to the oil return straight nozzle.

[0010] Preferably, two oil return limiting ribs are provided on the oil return plastic seat, and two bracket oil return grooves for accommodating the oil return limiting ribs are provided on the bracket oil return annular rib plate.

[0011] Preferably, the connecting mechanism includes an ejection limit hook arranged on the ejection seat assembly, and the oil return plastic seat is provided with an oil return elastic undercut that can cooperate with the ejection limit hook to fix the positions of the ejection seat assembly and the oil return plastic seat to each other.

[0012] Preferably, a filter is press-fitted onto the oil pump.

[0013] Preferably, it also includes a rubber hose, which is fixed to the siphon oil nozzle through an elastic clamp.

[0014] Preferably, two bracket siphon circular rib plates are arranged on the bottom surface of the pump core bracket, and the two bracket siphon circular rib plates are respectively wrapped around the outside of the two bracket oil nozzles, and the bracket siphon circular rib plates are provided with bracket siphon hooks, and the bracket siphon hooks can be locked with the steps in the first siphon cone and the second siphon cone.

[0015] Preferably, the oil inlet passages in the first siphon cone and the second siphon cone are connected to the oil outlet passage in the second siphon cone, and the diameter of the oil inlet passage in the second siphon cone is sharply reduced at the point where it is connected to the oil outlet passage.

[0016] Preferably, an ejection hole with a rapidly decreasing diameter is provided in the ejection seat assembly so that negative pressure can be generated in the ejection straight oil nozzle.

[0017] The utility model provides a novel fuel pump oil storage barrel siphon integrated module, which has the following beneficial effects:

[0018] The utility model can realize gasoline siphoning and oil return injection functions respectively by installing a siphon assembly or an injection assembly, and the pump core bracket, oil pump, oil storage barrel and other components in the utility model can be universal, and the universality is strong;

[0019] The utility model ensures that the utility model will not be reversely installed during installation and ensures the connection strength by arranging components such as the oil return limit rib, the bracket oil return annular rib plate, and the bracket oil return slot, which is convenient for assembly. It has low requirements on the operating skills of workers during production, assembly, maintenance and replacement, and is easy to use and reverse. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the appearance of the utility model when a siphon assembly is installed;

[0021] Figure 2 This is a schematic diagram of the appearance of the utility model when the ejection assembly is installed (the oil storage barrel, oil pump and filter are removed);

[0022] Figure 3 It is an exploded view of the utility model when a siphon assembly is installed;

[0023] Figure 4 This is an exploded view of the utility model when the ejection assembly is installed (the oil storage barrel, oil pump and filter are removed);

[0024] Figure 5 yes Figure 1 Schematic diagram of the appearance of the middle pump core bracket from another angle;

[0025] Figure 6 It is a diagram of the oil flow direction when a siphon assembly is installed in the utility model;

[0026] Figure 7 It is an oil flow diagram when the ejection assembly is installed in the utility model. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Reference Figure 1-Figure 7 According to an embodiment of a new type of fuel pump oil storage barrel siphon integrated module of the utility model, it includes an oil storage barrel 9, a pump core bracket 2 and an oil pump 1, the oil pump is equipped with a filter 6, the oil pump 1 is used to extract the gasoline in the oil storage barrel 9, the pump core bracket 2 is fixed at the upper end of the oil storage barrel 9, and the oil pump 1 is fixed in the pump core bracket 2.

[0032] In order to allow the gasoline outside the auxiliary tank or the oil storage barrel 9 to enter the oil storage barrel for supply to the oil pump, the novel fuel pump oil storage barrel siphon integrated module can install a siphon component 101 or an ejection component 102 to respectively realize gasoline siphoning (sucking gasoline from the auxiliary tank) and return oil ejection (extracting gasoline from the oil storage barrel 9).

[0033] When gasoline siphoning is required, the siphon assembly 101 needs to be installed. The siphon assembly 101 includes a siphon seat assembly 5. The siphon seat assembly 5 is provided with two siphon first cones 5.1 and a siphon second cone 5.2 extending upward, and a siphon oil nozzle 5.4 is provided on the lower side of the siphon seat assembly 5. Two bracket oil nozzles 2.1 are provided in the pump core bracket 2. The bracket oil nozzle 2.1 extends to the upper and lower sides of the pump core bracket 2. The siphon seat assembly 5 is detachably fixed to the pump core bracket 2 so that the siphon first cone 5.1 and the siphon first cone 5.2 can be connected to the bracket oil nozzle 2.1.

[0034] The connection and fixing method of the siphon first cone 5.1 and the siphon first cone 5.2 and the bracket oil nozzle 2.1 is as follows: two bracket siphon circular rib plates 2.11 are arranged on the bottom surface of the pump core bracket 2, and the two bracket siphon circular rib plates 2.11 are respectively wrapped around the outside of the two bracket oil nozzles 2.1, and the bracket siphon circular rib plates 2.11 are provided with bracket siphon hooks 2.8, and the bracket siphon hooks 2.8 can be locked with the steps inside the siphon first cone 5.1 and the siphon second cone 5.2.

[0035] In addition, it also includes a rubber hose 8, which is fixed to the siphon oil nozzle 5.4 through an elastic clamp 7, and the siphon oil nozzle 5.4 extends into the oil storage barrel 9.

[0036] When realizing the gasoline siphon function, the two bracket nozzles 2.1 are respectively connected to the siphon oil pipe and the top cover. The bracket nozzle 2.1 connected to the top cover returns oil from the engine, and the oil passing through the bracket nozzle 2.1 will enter the oil storage barrel 9 after passing through the siphon seat assembly 5 and the rubber hose 8.

[0037] The oil inlet passages in the first siphon cone 5.1 and the second siphon cone 5.2 are connected to the oil outlet passage in the second siphon cone 5.2. The diameter of the oil inlet passage in the second siphon cone 5.2 is sharply reduced at the point where it is connected to the oil outlet passage, so as to form a negative pressure siphon effect on the oil inlet in the first siphon cone 5.1.

[0038] In order to ensure the connection between the first siphon cone 5.1, the second siphon cone 5.2 and the bracket oil nozzle 2.1 is firm and to avoid oil leakage at the connection, two bracket siphon circular rib plates 2.11 are arranged on the bottom surface of the pump core bracket 2, and the two bracket siphon circular rib plates 2.11 are respectively wrapped around the two bracket oil nozzles 2.1, and the bracket siphon circular rib plates 2.11 are provided with bracket siphon hooks 2.8, and the bracket siphon hooks 2.8 can be locked with the steps inside the first siphon cone 5.1 and the second siphon cone 5.2, and a No. 1 sealing ring is arranged inside the steps to prevent oil leakage.

[0039] When the oil return injection function needs to be realized, the injection assembly 102 needs to be installed. The injection assembly 102 includes an oil return plastic seat 10. The oil return plastic seat 10 is detachably fixed on the pump core bracket 2, and the oil return plastic seat 10 is connected to the injection seat assembly 12 through a connecting mechanism, so that the oil return straight oil nozzle 10.5 in the oil return plastic seat 10 can be connected to the injection seat assembly 12. In addition, the injection seat assembly 12 is provided with an injection straight oil nozzle 12.2, and the injection straight oil nozzle 12.2 is connected to the gasoline outside the oil storage barrel 9, and the injection seat assembly 12 is provided with an injection oil outlet pipe 12.3 located in the oil storage barrel 9.

[0040] In order to facilitate the stable installation of the oil return plastic seat 10, a bracket oil return annular rib 2.15 is provided on the lower side of the pump core bracket 2, and two bracket oil return hooks 2.17 are arranged on the bracket oil return annular rib 2.15, and the oil return plastic seat 10 is provided with an oil return limit buckle 10.2 which can be buckled with the bracket oil return hook 2.17, so that the oil return plastic seat 10 can be fixed in the bracket oil return annular rib 2.15, and the oil return nozzle 10.1 installed in the oil return plastic seat 10 can extend to the upper side of the pump core bracket 2, and the oil return nozzle 10.1 is connected to the oil return straight nozzle 10.5.

[0041] In order to prevent the oil return plastic seat 10 from rotating relative to the pump core bracket 2, two oil return limiting ribs 10.3 are provided on the oil return plastic seat 10, and two bracket oil return grooves 2.16 for accommodating the oil return limiting ribs 10.3 are provided on the bracket oil return annular rib plate 2.15.

[0042] The connecting mechanism includes an ejection limit hook 12.1 arranged on the ejection seat assembly 12, and the oil return plastic seat 10 is provided with an oil return elastic undercut 10.4 which can cooperate with the ejection limit hook 12.1 to fix the positions of the ejection seat assembly 12 and the oil return plastic seat 10 to each other. In addition, the oil return straight oil nozzle 10.5 is also covered with a No. 2 sealing ring 11 to prevent oil leakage at the connection between the oil return straight oil nozzle 10.5 and the ejection seat assembly 12.

[0043] When the gasoline injection function is realized, the oil return nozzle 10.1 is connected to the top cover and returns oil from the engine, the injection straight oil nozzle 12.2 in the injection seat assembly 12 is connected to the outside of the oil storage barrel 9, and the injection oil outlet pipe 12.3 in the injection seat assembly 12 is located in the oil storage barrel 9;

[0044] The oil flowing in from the return oil nozzle 10.1 will enter the injection seat assembly 12 after passing through the return oil straight oil nozzle 10.5, and then flow into the oil storage barrel 9 through the injection oil outlet pipe 12.3. The injection seat assembly 12 is provided with an injection hole with a sharply reduced diameter, so that the injection straight oil nozzle 12.2 can absorb gasoline from the oil tank outside the barrel into the barrel through negative pressure. In addition, a pressure relief hole 13 is provided in the return oil plastic seat 10, and a pressure relief valve is provided in the pressure relief hole 13. When the pressure in the return oil plastic seat 10 is greater than the spring force in the pressure relief valve, the pressure is relieved.

[0045] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A novel fuel pump oil storage barrel siphon integrated module, comprising an oil storage barrel (9), a pump core bracket (2) and an oil pump (1), wherein the oil pump (1) is used to extract gasoline from the oil storage barrel (9), the pump core bracket (2) is fixed to the upper end of the oil storage barrel (9), and the oil pump (1) is fixed in the pump core bracket (2), characterized in that: It also includes a siphon component (101) and an ejector component (102); The siphon assembly (101) comprises a siphon seat assembly (5), wherein the siphon seat assembly (5) is provided with two siphon first truncated cones (5.1) and a siphon second truncated cone (5.2) extending upward, and a siphon oil nozzle (5.4) is provided on the lower side of the siphon seat assembly (5), and the pump core bracket (2) is provided with two bracket oil nozzles (2.1), and the bracket oil nozzles (2.1) extend to the upper and lower sides of the pump core bracket (2), and the siphon seat assembly (5) is detachably fixed to the pump core bracket (2) so that the siphon first truncated cone (5.1) and the siphon second truncated cone (5.2) can communicate with the bracket oil nozzles (2.1); The ejector assembly (102) comprises an oil return plastic seat (10), the oil return plastic seat (10) being detachably fixed to the pump core bracket (2), and the oil return plastic seat (10) being connected to the ejector assembly (12) via a connecting mechanism, so that the oil return straight oil nozzle (10.5) in the oil return plastic seat (10) can be connected to the ejector assembly (12); The ejector seat assembly (12) is provided with an ejector oil outlet pipe (12.3), the ejector oil outlet pipe (12.3) and the siphon oil nozzle (5.4) can both be located in the oil storage barrel (9), and the ejector seat assembly (12) is provided with an ejector straight oil nozzle (12.2), the ejector straight oil nozzle (12.2) being connected to gasoline outside the oil storage barrel (9).

2. According to claim 1, a new type of fuel pump tank siphon integrated module is characterized by: A support oil return annular rib plate (2.15) is provided on the lower side of the pump core support (2), and two support oil return hooks (2.17) are provided on the support oil return annular rib plate (2.15). An oil return limit buckle (10.2) capable of being buckled with the support oil return hook (2.17) is provided on the oil return plastic seat (10), so that the oil return plastic seat (10) can be fixed in the support oil return annular rib plate (2.15), and the oil return nozzle (10.1) installed in the oil return plastic seat (10) can extend to the upper side of the pump core support (2), and the oil return nozzle (10.1) is connected to the oil return straight nozzle (10.5).

3. A new type of fuel pump oil tank siphon integrated module according to claim 2, characterized in that: The oil return plastic seat (10) is provided with two oil return limiting ribs (10.3), and the support oil return annular rib plate (2.15) is provided with two support oil return slots (2.16) for accommodating the oil return limiting ribs (10.3).

4. According to claim 1, a new type of fuel pump tank siphon integrated module is characterized by: The connecting mechanism comprises an ejection limit hook (12.1) provided on the ejection seat assembly (12), and the oil return plastic seat (10) is provided with an oil return elastic undercut (10.4) capable of cooperating with the ejection limit hook (12.1) so that the positions of the ejection seat assembly (12) and the oil return plastic seat (10) are fixed to each other.

5. According to claim 1, a new type of fuel pump tank siphon integrated module is characterized by: A filter screen (6) is press-fitted onto the oil pump (1).

6. A novel fuel pump tank siphon integrated module according to claim 1, characterized in that: It also comprises a rubber hose (8), wherein the rubber hose (8) is fixed to the siphon oil nozzle (5.4) via an elastic clamp (7).

7. A novel fuel pump tank siphon integrated module according to claim 1, characterized in that: Two support siphon circular rib plates (2.11) are arranged on the bottom surface of the pump core support (2), and the two support siphon circular rib plates (2.11) are respectively wound around the outside of the two support oil nozzles (2.1), and the support siphon circular rib plates (2.11) are provided with support siphon hooks (2.8), and the support siphon hooks (2.8) can be locked with the steps inside the siphon first truncated cone (5.1) and the siphon second truncated cone (5.2).

8. According to claim 1, a new type of fuel pump tank siphon integrated module is characterized by: The oil inlet passages in the first siphon cone (5.1) and the second siphon cone (5.2) are connected to the oil outlet passage in the second siphon cone (5.2), and the diameter of the oil inlet passage in the second siphon cone (5.2) is sharply reduced at the point where it is connected to the oil outlet passage.

9. A novel fuel pump tank siphon integrated module according to claim 1, characterized in that: An injection hole with a rapidly decreasing diameter is arranged in the injection seat assembly (12), so that negative pressure can be generated in the injection straight oil nozzle (12.2).

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