CN203051018U - Manual single plunger pump with unloading function - Google Patents
Manual single plunger pump with unloading function Download PDFInfo
- Publication number
- CN203051018U CN203051018U CN 201220591118 CN201220591118U CN203051018U CN 203051018 U CN203051018 U CN 203051018U CN 201220591118 CN201220591118 CN 201220591118 CN 201220591118 U CN201220591118 U CN 201220591118U CN 203051018 U CN203051018 U CN 203051018U
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- China
- Prior art keywords
- plunger
- hole
- plunger hole
- oil
- pipeline
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a manual single plunger pump with an unloading function. The manual single plunger pump comprises a cuboid pump body and a manual rocker. The pump body is provided with a support rod, the upper end of which is hinged with the middle part of the manual rocker. Plunger holes are vertically distributed on the pump body. The plunger hole is internally provided with a plunger rod. The upper end of the plunger rod extends outside the plunger hole and is hinged with one end of the manual rocker. The pump body is internally provided with an oil suction channel and an oil return channel. The suction channel and the oil return channel are connected with an oil tank. An oil transporting channel is arranged below the plunger hole and is connected with a plunger oil cylinder through a pipeline. The oil return channel is connected with the oil tank through a pipeline II which is provided with a stop valve. The oil transporting channel is communicated with the plunger hole. The oil suction channel is internally provided with a one-way valve I, and the oil transporting channel is internally provided with a one-way valve II. The one-way valve II is provided with a mandril contacted and matched with the plunger rod. A sealing ring is arranged on the hole wall on the upper part of the plunger hole. According to the manual single plunger pump, the pipeline is effectively simplified, the space is saved and the cost is lowered.
Description
Technical field
The utility model relates to a kind of plunger pump, particularly relates to a kind of manual single plunger pump of letting out year function that has.
Background technique
Road roller hood jacking oil hydraulic circuit uses the loop that hand pump and solenoid valve, hydraulic lock are formed more at present; this road roller hood jacking oil hydraulic circuit in use; cause the system reliability step-down through regular meeting; and rate of fault increases; moreover because it is expensive, the cost of maintenance or renewal part is bigger.In the using process of reality, brought very big inconvenience.Especially hand pump is the vitals in this road roller hood jacking oil hydraulic circuit, how to improve manual pump performance, and then improves this road roller hood jacking oil hydraulic circuit, is the various equivalent modifications problem demanding prompt solution.
The model utility content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of manual single plunger pump of letting out year function that has is provided.This manual single plunger pump simple in structure, reliable performance, low cost, high efficiency, effective simplification pipeline, conserve space reduces cost, favourable popularization.
For achieving the above object, the technical solution adopted in the utility model is: a kind of have let out the manual single plunger pump that carries function, it is characterized in that: comprise the pump housing and the joystick that are cuboid, the described pump housing is provided with strut, the upper end of described strut and the middle part of joystick are hinged, offer the plunger hole of vertical laying on the described pump housing, in the described plunger hole plunger rod is installed, the upper end of described plunger rod is stretched out plunger hole and is hinged with an end of joystick, be provided with the suction passage and the drainback passage that are communicated with plunger hole in the described pump housing, the equal level of described suction passage and drainback passage is laid, described suction passage all is connected with fuel tank with drainback passage, the below of described plunger hole is provided with for the oil transportation channel to the plunger cylinder oil transportation, described oil transportation channel is connected by pipeline one and plunger cylinder, described drainback passage is connected by pipeline two with fuel tank, described pipeline two is provided with stop valve, described oil transportation channel is connected with plunger hole, the level that is provided with in the described suction passage is laid and is used for making fluid enter the one-way valve one of plunger hole, be provided with vertical laying in the described oil transportation channel and be used for making the interior fluid of plunger hole to enter the one-way valve two of oil transportation channel, described one-way valve two has the push rod that contacts cooperation with plunger rod, and the hole wall on described plunger hole top is provided with seal ring.
Above-mentioned a kind of have let out the manual single plunger pump that carries function, it is characterized in that: described seal ring is the U-shaped seal ring that has dust excluder lips.
The utility model compared with prior art has the following advantages:
1, of the present utility model simple in structure, rationally novel in design, be easy to install.
2, when the utility model uses, to pressing down joystick, move on the plunger rod, fluid enters suction passage from fuel tank, and under the oil liquid pressure effect, open one-way valve one, fluid enters plunger hole, upwards lifts joystick this moment, this moment, plunger rod moved down, fluid enters plunger cylinder from plunger hole through oil transportation channel and pipeline one, when the needs off-load, opens normally closed stop valve, upwards lift joystick this moment, plunger rod moves down, and plunger rod cooperates with push rod, thereby opens one-way valve two, fluid in the plunger cylinder enters plunger hole through oil transportation channel and one-way valve two in the lump from pipeline, enter fuel tank from plunger hole through drainback passage and pipeline two again, finish off-load, it is easy and simple to handle, by stop valve is set, solved the off-load problem of plunger cylinder cleverly.
3, realization cost of the present utility model is low, and using effect is good, is convenient to promote the use of.
In sum, the utility model is simple in structure, novel in design rationally, the functional reliability height, long service life, reliable performance, low cost, high efficiency, effective simplification pipeline, conserve space reduces cost, favourable popularization.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is hydraulic schematic diagram of the present utility model.
Description of reference numerals:
1-joystick; 2-plunger rod; 2-1-push rod;
3-seal ring; 4-pump housing; 5-plunger hole;
6-drainback passage; 7-one-way valve two; 8-oil transportation channel;
9-suction passage; 10-one-way valve one; 11-strut;
13-stop valve; 14-fuel tank; 15-plunger cylinder;
16-pipeline one; 17-pipeline two.
Embodiment
As depicted in figs. 1 and 2 a kind of has and lets out the manual single plunger pump that carries function, comprise the pump housing 4 and the joystick 1 that are cuboid, the described pump housing 4 is provided with strut 11, the middle part of the upper end of described strut 11 and joystick 1 is hinged, offer the plunger hole 5 of vertical laying on the described pump housing 4, in the described plunger hole 5 plunger rod 2 is installed, the upper end of described plunger rod 2 is stretched out plunger hole 5 and is hinged with an end of joystick 1, be provided with the suction passage 9 and the drainback passage 6 that are communicated with plunger hole 5 in the described pump housing 4, described suction passage 9 and drainback passage 6 equal levels are laid, described suction passage 9 all is connected with fuel tank 14 with drainback passage 6, the below of described plunger hole 5 is provided with for the oil transportation channel 8 to plunger cylinder 15 oil transportations, described oil transportation channel 8 is connected by pipeline 1 and plunger cylinder 15, described drainback passage 6 is connected by pipeline 2 17 with fuel tank 14, described pipeline 2 17 is provided with stop valve 13, described oil transportation channel 8 is connected with plunger hole 5, the level that is provided with in the described suction passage 9 is laid and is used for making fluid enter the one-way valve 1 of plunger hole 5, be provided with vertical laying in the described oil transportation channel 8 and be used for making plunger hole 5 interior fluid to enter the one-way valve 27 of oil transportation channel 8, described one-way valve 27 has the push rod 2-1 that contacts cooperation with plunger rod 2, and the hole wall on described plunger hole 5 tops is provided with seal ring 3.Preferred way is that described seal ring 3 is for having the U-shaped seal ring of dust excluder lips.
In conjunction with Fig. 1 and Fig. 2, during use, to pressing down joystick 1, move on the plunger rod 2 this moment, fluid enters suction passage 9 from fuel tank 14, and under the oil liquid pressure effect, open one-way valve 1, fluid enters plunger hole 5, upwards lifts joystick 1 this moment, and this moment, plunger rod 2 moved down, fluid enters plunger cylinder 15 from plunger hole 5 through oil transportation channel 8 and pipeline 1, when the needs off-load, open normally closed stop valve 13, upwards lift joystick 1 this moment, plunger rod 2 moves down, plunger rod 2 cooperates with push rod 2-1, thereby opens one-way valve 27, and the fluid in the plunger cylinder 15 enters plunger hole 5 from pipeline 1 and through oil transportation channel 8 and one-way valve 27, enter fuel tank 14 from plunger hole 5 through drainback passage 6 and pipeline 2 17 again, finish off-load.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment does, all still belong in the protection domain of technical solutions of the utility model.
Claims (2)
1. one kind has the manual single plunger pump of letting out year function, it is characterized in that: comprise the pump housing (4) and the joystick (1) that are cuboid, the described pump housing (4) is provided with strut (11), the middle part of the upper end of described strut (11) and joystick (1) is hinged, offer the plunger hole (5) of vertical laying on the described pump housing (4), plunger rod (2) is installed in the described plunger hole (5), the upper end of described plunger rod (2) is stretched out plunger hole (5) and is hinged with an end of joystick (1), be provided with the suction passage (9) and the drainback passage (6) that are communicated with plunger hole (5) in the described pump housing (4), described suction passage (9) and drainback passage (6) all level are laid, described suction passage (9) all is connected with fuel tank (14) with drainback passage (6), the below of described plunger hole (5) is provided with for the oil transportation channel (8) to plunger cylinder (15) oil transportation, described oil transportation channel (8) is connected by pipeline one (16) and plunger cylinder (15), described drainback passage (6) is connected by pipeline two (17) with fuel tank (14), described pipeline two (17) is provided with stop valve (13), described oil transportation channel (8) is connected with plunger hole (5), the level that is provided with in the described suction passage (9) is laid and is used for making fluid enter the one-way valve one (10) of plunger hole (5), be provided with vertical laying in the described oil transportation channel (8) and be used for making the interior fluid of plunger hole (5) to enter the one-way valve two (7) of oil transportation channel (8), described one-way valve two (7) has the push rod (2-1) that contacts cooperation with plunger rod (2), and the hole wall on described plunger hole (5) top is provided with seal ring (3).
According to claim 1 a kind of have let out the manual single plunger pump that carries function, it is characterized in that: described seal ring (3) is for having the U-shaped seal ring of dust excluder lips.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220591118 CN203051018U (en) | 2012-11-09 | 2012-11-09 | Manual single plunger pump with unloading function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220591118 CN203051018U (en) | 2012-11-09 | 2012-11-09 | Manual single plunger pump with unloading function |
Publications (1)
Publication Number | Publication Date |
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CN203051018U true CN203051018U (en) | 2013-07-10 |
Family
ID=48733977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201220591118 Expired - Fee Related CN203051018U (en) | 2012-11-09 | 2012-11-09 | Manual single plunger pump with unloading function |
Country Status (1)
Country | Link |
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CN (1) | CN203051018U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110701160A (en) * | 2019-09-11 | 2020-01-17 | 丁起武 | Fluid pressure locking device |
CN112303046A (en) * | 2020-10-29 | 2021-02-02 | 平湖东来液压工具有限公司 | Hydraulic system of automobile repair platform |
-
2012
- 2012-11-09 CN CN 201220591118 patent/CN203051018U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110701160A (en) * | 2019-09-11 | 2020-01-17 | 丁起武 | Fluid pressure locking device |
CN110701160B (en) * | 2019-09-11 | 2021-10-08 | 丁起武 | Fluid pressure locking device |
CN112303046A (en) * | 2020-10-29 | 2021-02-02 | 平湖东来液压工具有限公司 | Hydraulic system of automobile repair platform |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20131109 |