CN212563501U - Plunger type hand oil pump without return spring for automobile diesel oil filter - Google Patents
Plunger type hand oil pump without return spring for automobile diesel oil filter Download PDFInfo
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- CN212563501U CN212563501U CN202020321550.4U CN202020321550U CN212563501U CN 212563501 U CN212563501 U CN 212563501U CN 202020321550 U CN202020321550 U CN 202020321550U CN 212563501 U CN212563501 U CN 212563501U
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Abstract
The utility model relates to a plunger type hand oil pump without return spring for an automobile diesel oil filter, which comprises a filter base, a plunger handle, a piston, a plunger nut, a one-way diaphragm valve of an oil inlet and an oil outlet, a deflation screw and a filter tank body; the filter base comprises the hand oil pump body, the oil inlet and outlet, a filter tank body connector and a filter mounting hole. Hand oil pump body side end sets up filter business turn over hydraulic fluid port, and the bottom side communicates with the oil inlet and outlet end of the filter jar body, pump body inner chamber aperture and business turn over oily one-way diaphragm valve and piston external diameter phase-match, and filter base side center is the column oil outlet passageway, and there is the external screw thread cylinder surface for connect the fastening filter tank, and the oil-out communicates with each other with the filter tank through the center post, and the top is provided with the exhaust screw, and there are 2 mounting holes that are used for fixed filter assembly at the filter base back. The utility model discloses can effectively get rid of the air in the car diesel oil low pressure pipeline, single pump oil volume is big, and pump oil pressure is little, and the low temperature environment is inefficacy down, and the reliability is high.
Description
Technical Field
The utility model relates to a hand oil pump, specific no reset spring plunger formula hand oil pump of car diesel oil filter that says so belongs to car fuel oil system technical field.
Background
In the existing automobile diesel power engine, a fuel supply system is provided with a low-pressure oil pump so as to exhaust air to the fuel low-pressure system when the engine is used for the first time or is maintained in the system, and the fuel can smoothly pass through the fuel system when the engine works normally, so that the sealing property of the fuel system is ensured. The low-pressure oil pump is divided into a manual oil pump and an electric oil pump. The electric oil pump is convenient to use, but has high production and manufacturing cost, low actual use frequency and low use popularity on commercial vehicles; the manual oil pump has the advantages of simple structure, low production, manufacturing and use cost, capability of basically meeting the requirements of various environments of vehicles, simplified arrangement of fuel pipelines on the whole vehicle and wide application. The manual oil pump is usually integrated on the diesel filter or a separate manual oil pump. Diesel oil filter integrated form hand oil pump, diaphragm push type press down and reset through the diaphragm and make the inside volume change of oil pump oil, simple structure, and the production manufacturability is good by wide use, but also has that the single pump oil mass is little, pump oil inefficiency, press pump oil power big, the diaphragm is sealed not tight after the repeated pressing of diaphragm, diaphragm and pressing means do not reset under the low temperature environment, defects such as hand oil pump easily became invalid.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, overcome prior art's shortcoming, provide a diesel oil filter no reset spring plunger formula oil hand pump rational in infrastructure, convenient to use, can effectively get rid of the air in the low pressure part pipeline of automobile diesel engine fuel supply system, plunger formula oil hand pump single pump oil mass is big, no plunger reset spring, pump oil pressure are little, efficient, inefficacy under the low temperature environment, the reliability is high.
In order to solve the technical problem, the utility model provides a non-return spring plunger type hand oil pump of an automobile diesel oil filter, which comprises a filter base, a plunger handle, a piston, a plunger nut, a one-way diaphragm valve of an oil inlet and an oil outlet, a deflation screw and a filter tank body; the filter base comprises the hand oil pump body, the oil inlet and outlet, a filter tank body connector and a filter mounting hole. Hand oil pump body side end sets up filter business turn over hydraulic fluid port, the bottom side communicates with each other with the oil inlet and outlet end of the filter jar body, pump body inner chamber aperture and business turn over oily one-way diaphragm valve and piston external diameter phase-match, filter base side center is the column oil outlet passageway, the cylinder surface has the external screw thread, be used for connecting the fastening filter tank, the oil-out communicates with each other with the filter tank through the center post, the top is provided with the exhaust screw, be arranged in getting rid of the air among the low pressure pipe-line system, there are 2 mounting holes that are used for fixed filter assembly at the.
The utility model discloses the technical scheme who further injects is: the plunger handle passes through plunger nut after and passes through threaded connection with the piston, follows piston circumference is provided with the sealing washer recess that is used for restricting the sealing ring motion.
Furthermore, the root of the plunger nut is provided with a sealing ring chamfer angle for sealing the plunger and preventing diesel oil from leaking from the plunger nut.
Furthermore, one side of the membrane of the one-way valve of the membrane of the oil inlet of the filter is pressed inwards into the oil inlet, and one side of the membrane of the one-way valve of the membrane of the oil outlet of the filter is pressed inwards to the bottom of the piston cylinder body.
Furthermore, the oil inlet and outlet one-way diaphragm valve of the filter is used for respectively controlling the on-off of the oil inlet and outlet when the hand oil pump piston pumps oil, and the oil inlet and outlet are in a normally open state when the hand oil pump does not work.
Furthermore, the oil inlet and return one-way diaphragm valve of the filter is in a closed and open state in the working process of the hand oil pump, when the filter works normally, the two one-way valves are in an open state, and diesel oil freely passes through the one-way valves.
Furthermore, the exhaust hole is communicated with the oil outlet and the oil outlet of the filter tank, and the exhaust hole of the low-pressure loop is arranged at the top of the upper end surface of the oil outlet channel of the filter base.
The utility model has the advantages that: the utility model discloses an oil cleaner does not have reset spring plunger formula hand oil pump, can effectively get rid of the air in the car diesel oil low-pressure pipeline, and plunger type hand oil pump leakproofness is good, and single pump oil volume is big, and pump oil pressure is little, and the low temperature environment is inefficacy down, and the reliability is high.
The utility model discloses simple structure, rationally distributed, function integrated level height, convenient to use and production low in manufacturing cost can satisfy the various service environment of car diesel oil supply system.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the plunger-type hand oil pump of the present invention.
Fig. 3 is a schematic view of the internal passage of the pump body of the filter base manual oil pump of the present invention.
Detailed Description
The plunger type hand oil pump without the return spring for the diesel filter provided by the embodiment has the structure shown in fig. 1, and comprises a filter base hand oil pump body 1, a diesel filter tank body 2, a plunger handle 3, a plunger nut 4, a piston 5, a plunger nut sealing ring 6, a piston sealing ring 7, an oil outlet diaphragm one-way valve 8, an oil inlet diaphragm one-way valve 9, an air release screw 10, an air release screw sealing ring 11, an oil inlet 12, an oil outlet 13, a filter fixing hole 14 and a filter tank sealing ring 15. As shown in fig. 3, 16 filter tank oil outlets, 17 filter tank connecting nuts, 18 filter tank oil inlets, 19 piston cylinder bodies and 20 exhaust holes. 9 oil inlet diaphragm check valve diaphragm one side inwards impresses 12 in the oil inlets, 8 oil-out diaphragm check valve diaphragm one side inwards impresses 19 piston cylinder body bottoms, 3 plunger handles pass 4 plunger nuts and pass through the screw thread and 5 piston connections, 7 piston seal ring card to 5 piston's sealing washer recesses in, 6 plunger nut sealing washer telescope 4 plunger nut chamfers on, 5 piston impels in 19 piston cylinder bodies, screws up 4 plunger nuts, plunger piston hand oil pump's installation finishes. When the low-pressure oil path needs to be exhausted, the 10-air-release screw is unscrewed, and the 10-air-release screw is screwed after the exhausting is finished. When the manual oil pump is used for pumping oil, firstly, the 3 plunger handles are screwed out from the 4 plunger nuts, then the 3 plunger handles are pulled outwards, 5 pistons move outwards in the 19 cylinder body, meanwhile, due to the action of the 7 piston sealing rings, the 8 oil outlet diaphragm one-way valve is closed, the 9 oil inlet diaphragm one-way valve is opened, diesel oil enters the 19 cylinder body of the manual oil pump from the 12 oil inlet, the 3 plunger handles are pushed inwards, 5 pistons move inwards in the 19 cylinder body, due to the action of the 7 piston sealing rings, the 8 oil outlet diaphragm one-way valve is opened, the 9 oil inlet diaphragm one-way valve is closed, the diesel oil enters the 2 filter tank body from the 19 cylinder body of the manual oil pump, and the 3 plunger handles are repeatedly pushed and pressed, so that the oil pumping of the plunger type manual oil pump. After pumping oil, the 3 plunger handle is screwed into the 4 plunger nut.
As shown in fig. 2, when the plunger pump pumps oil, in the process of outward movement of the 5-piston, the 8-oil outlet diaphragm one-way valve is closed, the 9-oil inlet diaphragm one-way valve is opened, diesel oil is sucked into the 19-piston cylinder body from the 12-oil inlet through the 9-oil inlet diaphragm one-way valve, in the process of inward movement of the 5-piston, the 8-oil outlet diaphragm one-way valve is opened, the 9-oil inlet diaphragm one-way valve is closed, and the diesel oil is filtered by the filter from the 19-piston cylinder body and then is pressed out from the 13. This completes one oil pumping process of the plunger pump.
In this embodiment, when the filter works normally and the hand oil pump works, the piston 5 and the plunger nut 4 are both in a sealing state, the diaphragm one-way valve 8 at the oil outlet and the diaphragm one-way valve 9 at the oil inlet only have a state of closing and opening in the working process of the hand oil pump, when the filter works normally, the two one-way valves are both in an opening state, and diesel oil can freely pass through the one-way valves. As shown in FIG. 3, the exhaust hole 20 is communicated with the oil outlet 13 and the oil outlet 16 of the filter tank, and the exhaust hole of the low-pressure loop is arranged at the top position of the oil outlet channel of the filter base.
In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (7)
1. The utility model provides a no reset spring plunger formula hand oil pump of car diesel oil filter which characterized in that: the filter comprises a filter base, a plunger handle, a piston, a plunger nut, an oil inlet and outlet one-way diaphragm valve, an air release screw and a filter tank body; the filter base is composed of a hand oil pump body, an oil inlet and outlet, a filter tank body connector and a filter mounting hole; the hand oil pump body side end sets up filter business turn over hydraulic fluid port, the bottom side communicates with each other with the oil inlet and outlet end of the filter jar body, pump body inner chamber aperture and business turn over oily one-way diaphragm valve and piston external diameter phase-match, filter base side center is the column oil outlet passageway, the cylinder surface has the external screw thread, be used for connecting the fastening filter tank, the oil-out communicates with each other with the filter tank through the center post, the top is provided with the exhaust screw who is arranged in getting rid of the air among the low pressure pipe-line system, there are two mounting holes that are used for fixed filter assembly.
2. The automobile diesel filter plunger type hand oil pump without return spring according to claim 1, characterized in that: the plunger handle passes through plunger nut after and passes through threaded connection with the piston, follows piston circumference is provided with the sealing washer recess that is used for restricting the sealing ring motion.
3. The automobile diesel filter plunger type hand oil pump without return spring according to claim 1, characterized in that: the root of the plunger nut is provided with a seal for the plunger, so that the diesel oil is prevented from leaking from the plunger nut by virtue of a seal ring chamfer.
4. The automobile diesel filter plunger type hand oil pump without return spring according to claim 1, characterized in that: one side of the filter oil inlet diaphragm one-way valve diaphragm is pressed inwards into the oil inlet, and one side of the filter oil outlet diaphragm one-way valve diaphragm is pressed inwards to the bottom of the piston cylinder body.
5. The automobile diesel filter plunger type hand oil pump without return spring according to claim 4, characterized in that: the oil inlet and outlet one-way diaphragm valve of the filter is used for respectively controlling the on-off of the oil inlet and outlet when the hand oil pump piston pumps oil, and the oil inlet and outlet are in a normally open state when the hand oil pump does not work.
6. The automobile diesel filter plunger type hand oil pump without return spring according to claim 5, characterized in that: the oil inlet and return one-way diaphragm valve of the filter is in a closed and opened state in the working process of the hand oil pump, when the filter works normally, the two one-way valves are in an opened state, and diesel oil freely passes through the one-way valves.
7. The automobile diesel filter plunger type hand oil pump without return spring according to claim 1, characterized in that: the exhaust hole is communicated with the oil outlet and the oil outlet of the filter tank, and the exhaust hole of the low-pressure loop is arranged at the top of the upper end surface of the oil outlet channel of the filter base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020321550.4U CN212563501U (en) | 2020-03-16 | 2020-03-16 | Plunger type hand oil pump without return spring for automobile diesel oil filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020321550.4U CN212563501U (en) | 2020-03-16 | 2020-03-16 | Plunger type hand oil pump without return spring for automobile diesel oil filter |
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| Publication Number | Publication Date |
|---|---|
| CN212563501U true CN212563501U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020321550.4U Active CN212563501U (en) | 2020-03-16 | 2020-03-16 | Plunger type hand oil pump without return spring for automobile diesel oil filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922757A (en) * | 2021-03-22 | 2021-06-08 | 中国重汽集团济南动力有限公司 | Full-plastic fuel oil filtering module for light automobile |
-
2020
- 2020-03-16 CN CN202020321550.4U patent/CN212563501U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922757A (en) * | 2021-03-22 | 2021-06-08 | 中国重汽集团济南动力有限公司 | Full-plastic fuel oil filtering module for light automobile |
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