CN209743106U - Hand pump for diesel engine oil delivery pump - Google Patents
Hand pump for diesel engine oil delivery pump Download PDFInfo
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- CN209743106U CN209743106U CN201920467957.5U CN201920467957U CN209743106U CN 209743106 U CN209743106 U CN 209743106U CN 201920467957 U CN201920467957 U CN 201920467957U CN 209743106 U CN209743106 U CN 209743106U
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Abstract
The utility model discloses a hand pump for diesel engine oil transfer pump in the technical field of hand pump for diesel engine oil transfer pump, the top of connecting plate is fixedly connected with a compression bar, the top of compression chamber and the assembly of compression bar are nested and provided with lip seal ring, the bottom of guide bar is connected with a piston fixedly arranged in an oil suction chamber after passing through a guide channel, the outside of guide bar is provided with a reset spring fixed on the bottom of connecting plate and the bottom of compression chamber, the top of oil suction chamber is provided with a first annular seal groove, the first annular seal groove is internally and fixedly nested and provided with a first annular seal ring, the top of piston is provided with a second annular seal groove, the bottom of the inner cavity of the second annular seal groove is fixed with a supporting spring, the top of the supporting spring is fixedly connected with a second annular seal ring, which ensures that oil can be sucked into the oil suction, the oil sucked into the pump body is prevented from entering the upper part of the piston, and the sealing performance of the pump is improved.
Description
Technical Field
the utility model relates to a hand pump technical field for diesel engine oil delivery pump specifically is a hand pump for diesel engine oil delivery pump.
Background
The hand pump plays a role in removing air in an oil conveying pipeline and an oil pump on a diesel engine oil conveying pump, is a necessary part of the diesel engine oil conveying pump although the use frequency is less, and the existing hand pump for the oil conveying pump has poor sealing performance, so that oil leakage faults are caused, an engine is easy to pollute, and fire hidden dangers exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hand pump for diesel engine fuel delivery pump to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a hand pressure pump for a diesel engine oil transfer pump comprises a pump body, wherein a compression cavity is formed in an inner cavity of the pump body, an oil suction cavity is arranged below the compression cavity, the compression cavity is communicated with the oil suction cavity through a guide channel, a connecting plate is nested in the compression cavity, a pressure rod is fixedly connected to the top of the connecting plate, the top end of the pressure rod upwards penetrates through the pump body, an elastic sealing ring is nested at the assembly position of the pressure rod and the pump body, a lip sealing ring is nested at the assembly position of the top of the compression cavity and the pressure rod, a guide rod is fixedly welded at the center of the bottom of the connecting plate, the bottom end of the guide rod penetrates through the guide channel and is fixedly connected with a piston arranged in the oil suction cavity, reset springs fixed on the bottom of the connecting plate and the bottom of the compression cavity are arranged on the outer side of the, the oil inlet and the oil outlet that communicate with the oil absorption chamber are seted up respectively on the left and right sides wall of the pump body, first ring seal groove has been seted up at the top in oil absorption chamber, first ring seal groove internal fixation nestification is provided with first ring seal, the second ring seal groove has been seted up at the top of piston, second ring seal groove inner chamber bottom is fixed with supporting spring, supporting spring's top fixedly connected with second ring seal.
Preferably, the first annular seal groove is disposed at an outer side of the guide passage, the second annular seal groove is disposed at an outer side of a joint of the guide rod and the piston, the first annular seal groove and the second annular seal groove are disposed on an annular vertical surface, and widths of the first annular seal groove and the second annular seal groove are the same.
Preferably, the first annular sealing ring is fixed on a side wall of the first annular sealing groove far away from the opening, and the thickness of the first annular sealing ring is smaller than the depth of the first annular sealing groove.
Preferably, the top end of the second annular sealing ring is higher than the top end face of the piston, and the supporting springs are uniformly arranged along the circumferential direction of the second annular sealing groove.
Preferably, the top in the compression chamber is provided with a clamping groove matched with the lip sealing ring, the lip sealing ring is fixedly nested in the clamping groove, and the lip sealing ring is matched with the outer diameter of the pressure rod.
Preferably, the outer diameter of the return spring is larger than the width of the guide channel, and the length of the guide rod is matched with the movable stroke of the piston in the oil suction cavity.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of reasonable design, through the nested lip sealing washer that is provided with depression bar matched with at compression chamber top, and the nested elastic sealing who is provided with depression bar matched with on the pump body, can improve the leakproofness at pump body top, prevent that rainwater etc. from flowing into the pump body and causing the internal corrosion of pump, through seting up second ring seal groove at the piston top, and the nested second ring seal that is provided with in second ring seal groove, set up first ring seal groove at oil absorption chamber top, the nested first ring seal groove that is provided with of nesting in first ring seal groove, cooperation through first ring seal and second ring seal has guaranteed when the piston goes upward, the lower part of piston can form the vacuum, guarantee can inhale the oil absorption intracavity with oil from the inlet port, oil entering piston upper portion in the suction pump body has also been avoided, the leakproofness of pump has been improved.
drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
Fig. 2 is an enlarged schematic view of part a of the present invention.
In the figure: the oil pump comprises a pump body 1, a compression cavity 2, a guide channel 3, an oil suction cavity 4, a connecting plate 5, a pressure rod 6, an elastic sealing ring 7, a lip sealing ring 8, a guide rod 9, a piston 10, a return spring 11, a flat gasket 12, an oil inlet 13, an oil outlet 14, a first annular sealing groove 15, a first annular sealing ring 16, a second annular sealing groove 17, a supporting spring 18 and a second annular sealing ring 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a manual pump for a diesel engine oil transfer pump comprises a pump body 1, a compression cavity 2 is formed in an inner cavity of the pump body 1, an oil suction cavity 4 is arranged below the compression cavity 2, the compression cavity 2 is communicated with the oil suction cavity 4 through a guide channel 3, a connecting plate 5 is nested in the compression cavity 2, a pressure rod 6 is fixedly connected to the top of the connecting plate 5, the top end of the pressure rod 6 upwards penetrates through the pump body 1, an elastic sealing ring 7 is nested at an assembly position of the pressure rod 6 and the pump body 1, a lip sealing ring 8 is nested at the assembly position of the top of the compression cavity 2 and the pressure rod 6, a guide rod 9 is fixedly welded at the center of the bottom of the connecting plate 5, the bottom end of the guide rod 9 penetrates through the guide channel 3 and is fixedly connected with a piston 10 arranged in the oil suction cavity 4, a return spring 11 fixed on the bottom of the connecting plate 5 and the bottom of the compression cavity, an oil inlet 13 and an oil outlet 14 which are communicated with the oil suction cavity 4 are respectively formed in the left side wall and the right side wall of the pump body 1, a first annular sealing groove 15 is formed in the top of the oil suction cavity 4, a first annular sealing ring 16 is fixedly embedded in the first annular sealing groove 15, a second annular sealing groove 17 is formed in the top of the piston 10, a supporting spring 18 is fixedly arranged at the bottom of an inner cavity of the second annular sealing groove 17, and a second annular sealing ring 19 is fixedly connected to the top end of the supporting spring 18.
The first annular seal groove 15 is arranged on the outer side of the guide channel 3, the second annular seal groove 17 is arranged on the outer side of the joint of the guide rod 9 and the piston 10, the first annular seal groove 15 and the second annular seal groove 17 are arranged on an annular vertical surface, the widths of the first annular seal groove 15 and the second annular seal groove 17 are the same, and through the arrangement, when the return spring 11 drives the piston 10 to reset, the second annular seal ring 19 is embedded into the first annular seal groove 15 to be attached to the first annular seal ring 16, and meanwhile, the supporting spring 18 is compressed to provide extrusion force between the second annular seal ring 19 and the first annular seal ring 16, so that the sealing performance of the pump is improved;
The first annular sealing ring 16 is fixed on the side wall of the first annular sealing groove 15 far away from the opening, and the thickness of the first annular sealing ring 16 is smaller than the depth of the first annular sealing groove 15;
The top end of the second annular sealing ring 19 is higher than the top end surface of the piston 10, and the supporting springs 18 are uniformly arranged along the circumferential direction of the second annular sealing groove 17;
The top in the compression cavity 2 is provided with a clamping groove matched with the lip sealing ring 8, the lip sealing ring 8 is fixedly embedded in the clamping groove, and the outer diameters of the lip sealing ring 8 and the compression rod 6 are matched with each other, so that the sealing property between the pump body 1 and the compression rod 6 can be improved, and rainwater and the like can be prevented from flowing into the pump body 1 to cause the corrosion of the inner cavity of the pump body 1;
The outer diameter of the return spring 11 is larger than the width of the guide channel 3 and the length of the guide rod 9 is adapted to the active travel of the piston 10 in the suction chamber 4.
Example (b): when the device is used, whether each sealing ring and each sealing element are normal is checked firstly, then the pressure rod 6 is pressed manually and repeatedly, the pressure rod 6 drives the guide rod 9 to move downwards through the connecting plate 5, the return spring 11 is compressed, the guide rod 9 drives the piston 10 to move downwards in the oil suction cavity 4, when the hand is loosened, the piston 10 at the bottom of the guide rod 9 is driven to move upwards through the connecting plate 5 under the action of the resilience force of the return spring 11, when the piston 10 moves upwards, a true cavity is formed below the piston 10 and the oil suction cavity 4, so that suction force is generated, fuel oil can be sucked into the oil suction cavity 4 from the oil inlet 13 through the one-way valve of the oil transfer pump, when the piston 10 moves downwards, as the oil inlet 13 is connected with the one-way valve, the oil path is not communicated, and the movement of the piston 10 can drive the fuel oil in the oil suction cavity 4 to be discharged out of the pump body 1 through the oil outlet 14 and output to, then an oil delivery cycle is completed, oil can be gradually pumped from an oil tank to a diesel engine by continuously pressing a pressure rod 6, an oil circuit is filled with diesel oil, the starting of the engine is ensured, a lip seal ring 8 matched with the pressure rod 6 is nested at the top of a compression cavity 2, an elastic seal ring 7 matched with the pressure rod 6 is nested on a pump body 1, the sealing property between the pump body 1 and the pressure rod 6 can be improved, rainwater and the like are prevented from flowing into the pump body 1 to cause the corrosion of an inner cavity of the pump body 1, a second annular seal groove 17 is formed at the top of a piston 10, a second annular seal ring 19 is nested in the second annular seal groove 17, a first annular seal groove 15 is formed at the top of an oil suction cavity 4, a first annular seal ring 16 is nested in the first annular seal groove 15, and the cooperation of the first annular seal ring 16 and the second annular seal ring 19 ensures that the piston 10, the lower part of the piston 10 can form vacuum, guarantee to suck oil from the oil inlet 13 in the oil suction cavity 4, also avoid the oil sucked into the pump body 1 to get into the upper part of the piston 10, the sealing performance of the pump is improved, when the return spring 11 drives the piston 10 to reset, the second annular sealing ring 19 is embedded into the first annular sealing ring 15 and is attached to the first annular sealing ring 16, meanwhile, the supporting spring 18 is compressed, the extrusion force between the second annular sealing ring 19 and the first annular sealing ring 16 is provided, and the sealing performance of the pump is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a hand pump for diesel engine fuel delivery pump, includes pump body (1), its characterized in that: the oil suction pump is characterized in that a compression cavity (2) is formed in an inner cavity of the pump body (1), an oil suction cavity (4) is arranged below the compression cavity (2), the compression cavity (2) is communicated with the oil suction cavity (4) through a guide channel (3), a connecting plate (5) is nested in the compression cavity (2), a pressure rod (6) is fixedly connected to the top of the connecting plate (5), the top end of the pressure rod (6) upwards penetrates through the pump body (1), an elastic sealing ring (7) is nested at an assembly position of the pressure rod (6) and the pump body (1), a lip sealing ring (8) is nested at the top of the compression cavity (2) and an assembly position of the pressure rod (6), a guide rod (9) is fixedly welded at the center of the bottom of the connecting plate (5), and the bottom end of the guide rod (9) is fixedly connected with a piston (10) arranged in the oil suction cavity (4) after penetrating through the guide channel, the outer side of guide bar (9) is provided with reset spring (11) of fixing on connecting plate (5) bottom and compression chamber (2) bottom, the fixed flat pad (12) that is provided with in bottom of oil absorption chamber (4), oil inlet (13) and oil outlet (14) of intercommunication with oil absorption chamber (4) are seted up respectively on the left and right sides wall of the pump body (1), first ring seal groove (15) have been seted up at the top of oil absorption chamber (4), first ring seal groove (15) internal fixation nestification is provided with first ring seal (16), second ring seal groove (17) have been seted up at the top of piston (10), second ring seal groove (17) inner chamber bottom is fixed with supporting spring (18), the top fixedly connected with second ring seal (19) of supporting spring (18).
2. the hand pump for the diesel engine oil delivery pump as set forth in claim 1, wherein: the first annular sealing groove (15) is arranged on the outer side of the guide channel (3), the second annular sealing groove (17) is arranged on the outer side of the joint of the guide rod (9) and the piston (10), the first annular sealing groove (15) and the second annular sealing groove (17) are arranged on an annular vertical plane, and the width of the first annular sealing groove (15) is the same as that of the second annular sealing groove (17).
3. The hand pump for the diesel engine oil delivery pump as set forth in claim 1, wherein: the first annular sealing ring (16) is fixed on the side wall of one side, far away from the opening, in the first annular sealing groove (15), and the thickness of the first annular sealing ring (16) is smaller than the depth of the first annular sealing groove (15).
4. The hand pump for the diesel engine oil delivery pump as set forth in claim 1, wherein: the top end of the second annular sealing ring (19) is higher than the top end face of the piston (10), and the supporting springs (18) are uniformly arranged along the circumferential direction of the second annular sealing groove (17).
5. the hand pump for the diesel engine oil delivery pump as set forth in claim 1, wherein: the top has seted up the draw-in groove with lip sealing washer (8) matched with in compression chamber (2), just lip sealing washer (8) are fixed nestedly in the draw-in groove, just lip sealing washer (8) and depression bar (6) external diameter cooperate.
6. The hand pump for the diesel engine oil delivery pump as set forth in claim 1, wherein: the outer diameter of the return spring (11) is larger than the width of the guide channel (3), and the length of the guide rod (9) is matched with the movable stroke of the piston (10) in the oil suction cavity (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920467957.5U CN209743106U (en) | 2019-04-09 | 2019-04-09 | Hand pump for diesel engine oil delivery pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920467957.5U CN209743106U (en) | 2019-04-09 | 2019-04-09 | Hand pump for diesel engine oil delivery pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209743106U true CN209743106U (en) | 2019-12-06 |
Family
ID=68720193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920467957.5U Active CN209743106U (en) | 2019-04-09 | 2019-04-09 | Hand pump for diesel engine oil delivery pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209743106U (en) |
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2019
- 2019-04-09 CN CN201920467957.5U patent/CN209743106U/en active Active
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