CN212898889U - Self-discharging formula fuel pump - Google Patents
Self-discharging formula fuel pump Download PDFInfo
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- CN212898889U CN212898889U CN202021075755.5U CN202021075755U CN212898889U CN 212898889 U CN212898889 U CN 212898889U CN 202021075755 U CN202021075755 U CN 202021075755U CN 212898889 U CN212898889 U CN 212898889U
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- rod
- valve
- oil drainage
- oil
- fuel pump
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Abstract
The utility model discloses a self-discharging fuel pump, which comprises a cylinder body, wherein the cylinder body is arranged inside an oil tank, and the bottom of the cylinder body is provided with an oil drainage port; the top cover is fixed on the top of the cylinder body and used for being assembled with an oil tank in a sealing mode; the check valve is arranged at the oil drainage port and used for sealing the oil drainage port; the linkage unit is connected with the top cover and the flow stopping valve; and when the top cover is lifted, the check valve is opened through the linkage unit. The utility model discloses the top cap passes through the interlock unit to be connected with the flow stopping valve, when needs overhaul the fuel pump, dismantles earlier and lifts up the top cap, and the top cap passes through interlock unit pulling flow stopping valve control flow stopping valve and opens to unload out the inside fluid of cylinder body by the draining port, cause the fuel to splash to the outer phenomenon of oil tank when avoiding inclining the oil pump, avoid the potential safety hazard.
Description
Technical Field
The utility model relates to a fuel pump technical field, concretely relates to self-discharging formula fuel pump.
Background
Fuel pumps are a term of art in the automotive industry. The fuel pump is positioned in a vehicle fuel tank and is used for sucking fuel from the fuel tank, pressurizing the fuel and then conveying the pressurized fuel to a fuel supply pipe, and the fuel pump is matched with a fuel pressure regulator to establish certain fuel pressure.
The existing fuel pump is used as an important component of a fuel vehicle oil supply system, the fuel pump needs to be overhauled in time when in fault, the oil pump cylinder body needs to be inclined to be taken out together with the oil float when being overhauled, and the oil inlet at the bottom of the cylinder body is a one-way valve, so that residual fuel in the traditional fuel pump cylinder cannot be discharged, and the fuel is splashed outside an oil tank when the oil pump is obliquely taken out, so that potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a self-discharging formula fuel pump to solve among the prior art and can't discharge the surplus fuel in the fuel pump hydro-cylinder when overhauing the trouble, can cause the fuel to splash outside the oil tank when the oil pump is taken out in the slope, have the technical problem of potential safety hazard.
In order to realize the purpose, the technical scheme of the utility model is that:
a self-dumping fuel pump comprising:
the oil tank comprises a tank body, a pump body and a control device, wherein the tank body is arranged inside an oil tank, and an oil drainage port is formed in the bottom of the tank body;
the top cover is fixed on the top of the cylinder body and used for being assembled with an oil tank in a sealing mode;
the check valve is arranged at the oil drainage port and used for sealing the oil drainage port;
the linkage unit is connected with the top cover and the flow stopping valve;
and when the top cover is lifted, the check valve is opened through the linkage unit.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses the top cap passes through the interlock unit to be connected with the flow stopping valve, when needs overhaul the fuel pump, dismantles earlier and lifts up the top cap, and the top cap passes through interlock unit pulling flow stopping valve control flow stopping valve and opens to unload out the inside fluid of cylinder body by the draining port, cause the fuel to splash to the outer phenomenon of oil tank when avoiding inclining the oil pump, avoid the potential safety hazard.
On the basis of the above scheme, the utility model discloses can also do following improvement:
further, the check valve includes:
the valve rod is arranged above the oil drainage port;
one end of the transmission piece is sleeved on the valve rod, and the other end of the transmission piece extends to the side of the oil drainage port to be linked with the linkage unit;
the valve cover is installed at the other end of the transmission piece, faces towards one side of the oil drainage opening, and the valve cover is matched with the oil drainage opening to seal the oil drainage opening.
Through adopting above-mentioned scheme, initial state lower valve gap lid is tight at draining mouthful upper seal draining port, when needs overhaul, lifts up the top cap, drives the driving medium through the interlock unit and rotates around the valve rod to the synchronous control valve gap is rotatory around the valve rod, realizes draining mouthful opening the operation, and after the top cap resets, the valve gap resets under the action of gravity and guarantees that draining mouthful closes.
Further, the transmission part comprises a connecting rod, one end of the connecting rod is sleeved on the valve rod, a vertical transmission rod is fixed to the other end of the connecting rod, the bottom of the transmission rod extends to the side of the oil drainage opening, the valve cover is installed at the bottom of the transmission rod and faces towards one side of the oil drainage opening, a horizontal pull rod is installed at the bottom of the transmission rod and far away from one side of the oil drainage opening, and the end part of the pull rod is connected with the linkage unit.
By adopting the scheme, the linkage unit pulls up the pull rod, so that the transmission rod and the connecting rod are controlled to rotate, and the valve cover is driven to be opened.
Furthermore, the pull rod penetrates through the bottom of the transmission rod to be fixed, and the end part of the pull rod is connected with the valve cover into a whole.
Furthermore, the transmission rod comprises a limiting section and a connecting section, the limiting section is arranged above the connecting rod and used for limiting rotation, and the connecting section is arranged below the connecting rod and used for connecting the pull rod and the valve cover.
By adopting the scheme, the limiting section plays a limiting role when the valve rod rotates, and after the end part of the limiting section is abutted against the cylinder wall above the oil drainage port, the transmission rod cannot rotate continuously, so that the situation that the valve cover cannot reset due to excessive rotation is avoided.
Furthermore, the linkage unit is a pull rope, the bottom end of the pull rope is sleeved and fixed at the end part of the pull rod, and the top end of the pull rope is fixed at the bottom surface of the top cover through a pressing buckle.
Furthermore, the pull rope is an oil-resistant rubber pull rope, and the length of the pull rope is 10-20mm longer than the overall height of the assembled top cover and the assembled cylinder body.
Furthermore, the outer ring of the bottom surface of the top cover is provided with a plurality of guide pillars, and the cylinder body is provided with guide holes corresponding to the guide pillars one to one.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic top view of a cylinder according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an oil check valve according to an embodiment of the present invention.
1. A cylinder body; 101. a guide hole;
2. a top cover;
3. a flow stop valve; 301. a valve stem; 302. a connecting rod; 303. a transmission rod; 3031. a limiting section; 3032. a connecting section; 304. a pull rod; 305. a valve cover;
4. pulling a rope;
5. pressing and buckling;
6. and (6) a guide pillar.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 to 3, the self-discharging fuel pump according to the present embodiment includes a cylinder 1, a top cover 2, a check valve 3, and a linkage unit.
The cylinder body 1 is arranged in the oil tank, and an oil drainage port (not shown in the figure) is arranged at the bottom of the cylinder body 1.
The top cover 2 is fixed on the top of the cylinder body 1 and is used for being assembled with the oil tank in a sealing mode. Two guide posts 6 are arranged on the outer ring of the bottom surface of the top cover 2, and guide holes 101 corresponding to the guide posts 6 one by one are arranged on the cylinder body 1.
The check valve 3 is arranged at the oil drainage port and used for sealing the oil drainage port.
The linkage unit is connected with the top cover 2 and the check valve 3, and the check valve 3 is opened through the linkage unit when the top cover 2 is lifted.
The flow stop valve 3 comprises a valve stem 301, a transmission and a valve cap 305.
The valve cover 305 is installed at the other end of the transmission piece towards one side of the oil drainage port, and the valve cover 305 is matched with the oil drainage port to seal the oil drainage port.
The transmission part comprises a connecting rod 302, one end of the connecting rod 302 is sleeved on the valve rod 301, the other end of the connecting rod 302 is fixedly provided with a vertical transmission rod 303, the bottom of the transmission rod 303 extends to the side of the oil drainage opening, a valve cover 305 is arranged at the bottom of the transmission rod 303 and faces one side face of the oil drainage opening, a horizontal pull rod 304 is arranged at the bottom of the transmission rod 303 and far away from one side face of the oil drainage opening, and the end part.
The linkage unit pulls up the pull rod 304, thereby controlling the transmission rod 303 and the connecting rod 302 to rotate, and driving the valve cover 305 to open.
The pull rod 304 is fixed through the bottom of the transmission rod 303, and the end of the pull rod 304 is connected with the valve cover 305 into a whole.
The transmission rod 303 comprises a limiting section 3031 and a connecting section 3032, wherein the limiting section 3031 is arranged above the connecting rod 302 for limiting rotation, and the connecting section 3032 is arranged below the connecting rod 302 for connecting the pull rod 304 and the valve cover 305.
The limiting section 3031 plays a limiting role when the valve rod 301 rotates, and after the end part of the limiting section 3031 abuts against the cylinder wall above the oil drainage port, the transmission rod 303 cannot rotate continuously, so that the problem that the valve cover 305 cannot reset due to excessive rotation is avoided.
The linkage unit is a pull rope 4, the pull rope 4 is an oil-resistant rubber pull rope 4, and the length of the pull rope 4 is 10-20mm longer than the overall height of the assembled top cover 2 and the assembled cylinder body 1. The bottom end of the pull rope 4 is sleeved and fixed at the end part of the pull rod 304, and the top end is fixed at the bottom surface of the top cover 2 through the pressing buckle 5.
This embodiment top cap 2 is connected with the check valve 3 through stay cord 4, when needs overhaul the fuel pump, dismantles earlier and lifts up top cap 2, and top cap 2 pulls up pull rod 304 through stay cord 4 to the rotatory draining opening that opens of control valve lid 305, thereby unload the inside fluid of cylinder body 1 by the draining opening, cause the fuel to splash to the outer phenomenon of oil tank when avoiding inclining the oil pump, avoid the potential safety hazard.
In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (8)
1. A self-discharging fuel pump, comprising:
the oil tank comprises a tank body, a pump body and a control device, wherein the tank body is arranged inside an oil tank, and an oil drainage port is formed in the bottom of the tank body;
the top cover is fixed on the top of the cylinder body and used for being assembled with an oil tank in a sealing mode;
the check valve is arranged at the oil drainage port and used for sealing the oil drainage port;
the linkage unit is connected with the top cover and the flow stopping valve;
and when the top cover is lifted, the check valve is opened through the linkage unit.
2. The self-discharging fuel pump of claim 1, wherein the check valve comprises:
the valve rod is arranged above the oil drainage port;
one end of the transmission piece is sleeved on the valve rod, and the other end of the transmission piece extends to the side of the oil drainage port to be linked with the linkage unit;
the valve cover is installed at the other end of the transmission piece, faces towards one side of the oil drainage opening, and the valve cover is matched with the oil drainage opening to seal the oil drainage opening.
3. The self-discharging fuel pump of claim 2, wherein the transmission member comprises a connecting rod, one end of the connecting rod is sleeved on the valve rod, the other end of the connecting rod is fixed with a vertical transmission rod, the bottom of the transmission rod extends to the side of the oil drainage opening, the valve cover is installed at the bottom of the transmission rod and faces towards one side of the oil drainage opening, a horizontal pull rod is installed at the bottom of the transmission rod and far away from one side of the oil drainage opening, and the end part of the pull rod is connected with the linkage unit.
4. The self-discharging fuel pump of claim 3, wherein the tie rod is fixed through the bottom of the drive rod and the end of the tie rod is integrally connected to the valve cover.
5. The self-discharging fuel pump of claim 3, wherein the drive rod includes a limiting section and a connecting section, the limiting section is disposed above the connecting rod for rotational limitation, and the connecting section is disposed below the connecting rod for connecting the pull rod and the valve cover.
6. The self-discharging fuel pump of claim 3, wherein the linkage unit is a pull rope, the bottom end of the pull rope is sleeved and fixed at the end of the pull rod, and the top end of the pull rope is fixed at the bottom surface of the top cover through a press buckle.
7. The self-discharging fuel pump of claim 6, wherein the pull rope is an oil resistant rubber pull rope, and the length of the pull rope is 10-20mm longer than the overall height of the top cover and the cylinder body after assembly.
8. The self-discharging fuel pump according to any one of claims 1 to 7, wherein a plurality of guide posts are provided on an outer ring of a bottom surface of the top cover, and guide holes corresponding to the guide posts are provided on the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021075755.5U CN212898889U (en) | 2020-06-11 | 2020-06-11 | Self-discharging formula fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021075755.5U CN212898889U (en) | 2020-06-11 | 2020-06-11 | Self-discharging formula fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212898889U true CN212898889U (en) | 2021-04-06 |
Family
ID=75276770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021075755.5U Active CN212898889U (en) | 2020-06-11 | 2020-06-11 | Self-discharging formula fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212898889U (en) |
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2020
- 2020-06-11 CN CN202021075755.5U patent/CN212898889U/en active Active
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