CN204344391U - The secondary reinforcement hydraulic hand-pump of variable pressure and flow - Google Patents
The secondary reinforcement hydraulic hand-pump of variable pressure and flow Download PDFInfo
- Publication number
- CN204344391U CN204344391U CN201420784400.1U CN201420784400U CN204344391U CN 204344391 U CN204344391 U CN 204344391U CN 201420784400 U CN201420784400 U CN 201420784400U CN 204344391 U CN204344391 U CN 204344391U
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- pump
- plunger
- pump housing
- connecting rod
- lever handle
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Abstract
The utility model discloses the secondary reinforcement hydraulic hand-pump of a kind of variable pressure and flow, comprise the pump housing, the plunger be located in the pump housing, be articulated with lever handle oil hydraulic pump pedestal promoting plunger and move back and forth in the pump housing, the pump housing respectively pipeline connects fuel tank and executive component, connecting rod is provided with between described lever handle and plunger, connecting rod one end and lever handle hinged, the connecting rod the other end and plunger hinged.Hydraulic hand-pump described in the utility model, can provide low pressure and mass flow liquid at hollow travel stage, can provide high-pressure low-flow liquid again in the working stroke stage.Compared with existing hydraulic hand-pump, moving link obviously reduces, and working efficiency significantly improves, and simplifies the overall structure of hand pump, and can play reinforcement effect better, meets the usage requirement at engineering field.
Description
Technical field
The utility model relates to the secondary reinforcement hydraulic hand-pump of a kind of pressure and all adjustable change of flow.
Background technique
As a kind of hydraulic power supply that armstrong's patent can be converted to hydraulic energy, hydraulic hand-pump is simply widely used in the industry such as building, coal metallurgy, petrochemical industry, electric power, machinery with its structure, it is except supporting with forcible entry tool, also can support the use with other multiple types of tools or testing apparatus, if namely table hand hydraulic press is using hydraulic hand-pump as power source.In engineering, most operating mode all requires that hydraulic hand-pump can provide low pressure and mass flow liquid at hollow travel stage, working position is arrived fast to make executive component, again can in the working stroke stage, be automatically converted to according to load variations and high-pressure low-flow liquid is provided, obtain larger ouput force to make executive component.
Traditional single stage of pressure hydraulic hand-pump, because hollow travel stage flow is little, operating efficiency is low, causes operator's labor intensity large; And adopt the secondary reinforcement hydraulic hand-pump of the lever-toggle mechanism disclosed in patent No. ZL 201220141689.6, although overcome single stage of pressure hydraulic hand-pump Problems existing, but it use more toggle and connecting rod, comprise piston rod altogether containing 5 moving links, moving link is more, cause the general structure of hand pump complicated, anufacturability is poor.
Model utility content
The technical problems to be solved in the utility model is: overcome the deficiency in prior art, provide a kind of structure simple, adopt less physical activities component can meet the variable pressure of operating mode usage requirement and the secondary reinforcement hydraulic hand-pump of flow.
The utility model solves the technological scheme that its technical problem adopts: the secondary reinforcement hydraulic hand-pump of a kind of variable pressure and flow, comprise the pump housing, the plunger be located in the pump housing, be articulated with lever handle oil hydraulic pump pedestal promoting plunger and move back and forth in the pump housing, the pump housing respectively pipeline connects fuel tank and executive component, connecting rod is provided with between described lever handle and plunger, connecting rod one end and lever handle hinged, the connecting rod the other end and plunger hinged.
Pipeline between the described pump housing and fuel tank is provided with in line check valve, and the pipeline between the pump housing and executive component is provided with oil outlet one-way valve.
The beneficial effects of the utility model are: hydraulic hand-pump described in the utility model, can provide low pressure and mass flow liquid at hollow travel stage, can provide high-pressure low-flow liquid again in the working stroke stage.Compared with traditional hydraulic hand-pump, working efficiency significantly improves; Compared with the lever disclosed in the patent No.: ZL 201220141689.6-toggle secondary reinforcement hydraulic hand-pump, the utility model only has 3 moving links, moving link obviously reduces, working efficiency significantly improves, simplify the overall structure of hand pump, and reinforcement effect better can be played, meet the usage requirement at engineering field.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the working state schematic representation of boosting mechanism described in the utility model when Derivative limit on the left or on the right position.
1. pump housing 2. plunger 3. lever handle 4. fuel tank 5. executive component 6. connecting rod 7. in line check valve 8. oil outlet one-way valves in figure
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, and therefore it only shows the formation relevant with the utility model.
A kind of variable pressure as shown in Figure 1 and the secondary reinforcement hydraulic hand-pump of flow, comprise the pump housing 1, be located at plunger 2 in the pump housing 1 and promote the lever handle 3 that plunger 2 moves back and forth in the pump housing 1, lever handle 3 is articulated with on the pedestal of oil hydraulic pump, the articulating point of lever handle 3 is positioned on the elongation line of plunger 2 center line, keep good being slidably matched between plunger 2 and the pump housing 1, realize sealing reliably.The pump housing 1 lower part be don't bother about road and is connected fuel tank 4 and executive component 5, is provided with connecting rod 6 between lever handle 3 and connecting rod 6, connecting rod 6 one end and lever handle 3 hinged, connecting rod 6 the other end and plunger 2 hinged.
Pipeline between the described pump housing 1 and fuel tank 4 is provided with in line check valve 7, and the pipeline between the pump housing 1 and executive component 5 is provided with oil outlet one-way valve 8, with the flowing of this hydraulic control oil.
As shown in Figure 2, boosting mechanism and the plunger 2 of described lever handle 3 and connecting rod 6 formation are hinged, keep good fit between plunger 2 and the pump housing 1 inwall, realize sealing reliably.As shown in bold portion in Fig. 2, when promoting lever handle 3 to the right, hinged connecting rod 6 thereon is upwards mentioned and is pulled plunger 2 to move up, the sealed volume increase negative pressure that the pump housing 1 is following, one-way valve 7 is opened, hydraulic oil in fuel tank 4, under the effect of atmospheric pressure, enters the pump housing 1 inner chamber by fuel sucking pipe, completes an oil suction action; When firmly promoting lever handle 3 left, hinged connecting rod 6 thereon promotes plunger 2 and moves down, the sealed volume reduction that the pump housing 1 is following, one-way valve 7 is closed, and one-way valve 8 is opened, and discharges the hydraulic oil with certain pressure, enter executive component 5, complete a force feed action.Complete force feed action lever handle 3 with connecting rod 6 close to the moment of vertical conllinear, continue pull lever handle 3 left, connecting rod 6 pulls plunger 2 again to move up, and completes again an oil suction action, as shown in dotted portion in Fig. 2.When continuing firmly to promote lever handle 3 to the right, connecting rod 6 promotes again plunger 2 and moves down, and completes again a force feed action, circulates with this.
In the utility model, lever handle 3 and connecting rod 6 constitute the boosting mechanism of hand pump, the pressure angle α of this boosting mechanism is formed between connecting rod 6 center line and plunger 2 center line, and between lever handle 3 center line and plunger 2 center line, form the transmission angle φ of this boosting mechanism, when transmission angle φ and pressure angle α is larger, it is a stroke amplifying mechanism; When φ and α is less, it is a force amplificatory structure.Utilize this feature, extreme position shown in Fig. 2, when starting firmly to promote lever handle 3 to the left or to the right, staff actuating linkage handle 3 makes its amplitude of fluctuation larger, then the excursion at φ and α angle is larger, the movement velocity of plunger 2 is fast, and the hollow travel stage met in operating mode provides the needs of low pressure and mass flow liquid, and hydraulic hand-pump is at this moment low pressure and mass flow pump; When reaching the working stroke stage, staff can perceive the raising of pressure, just can its amplitude of fluctuation be reduced actuating linkage handle 3, namely the excursion at φ and α angle is less, ouput force and the corresponding raising of system pressure, meet the working stroke stage in operating mode, be automatically converted to the needs providing high-pressure low-flow liquid according to load variations, at this moment hydraulic hand-pump is automatically converted to high-pressure low-flow pump, and ouput force is corresponding improve then.
Hydraulic hand-pump described in the utility model, can provide low pressure and mass flow liquid at hollow travel stage, can provide high-pressure low-flow liquid again in the working stroke stage.Compared with traditional hydraulic hand-pump, working efficiency significantly improves; Compared with the lever disclosed in the patent No.: ZL 201220141689.6-toggle secondary reinforcement hydraulic hand-pump, the utility model only has 3 moving links, moving link obviously reduces, working efficiency significantly improves, simplify the overall structure of hand pump, and reinforcement effect better can be played, meet the usage requirement at engineering field.
Above-mentioned mode of execution is only for illustrating technical conceive of the present utility model and feature; its object is to person skilled in the art can be understood content of the present utility model and be implemented; protection domain of the present utility model can not be limited with this; all equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (2)
1. the secondary reinforcement hydraulic hand-pump of a variable pressure and flow, comprise the pump housing (1), be located at the plunger (2) in the pump housing (1), be articulated with the lever handle (3) oil hydraulic pump pedestal promoting plunger (2) and move back and forth in the pump housing (1), the pump housing (1) respectively pipeline connects fuel tank (4) and executive component (5), it is characterized in that: between described lever handle (3) and plunger (2), be provided with connecting rod (6), connecting rod (6) one end and lever handle (3) hinged, connecting rod (6) the other end and plunger (2) hinged.
2. the secondary reinforcement hydraulic hand-pump of variable pressure according to claim 1 and flow, it is characterized in that: the pipeline between the described pump housing (1) and fuel tank (4) is provided with in line check valve (7), and the pipeline between the pump housing (1) and executive component (5) is provided with oil outlet one-way valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784400.1U CN204344391U (en) | 2014-12-11 | 2014-12-11 | The secondary reinforcement hydraulic hand-pump of variable pressure and flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784400.1U CN204344391U (en) | 2014-12-11 | 2014-12-11 | The secondary reinforcement hydraulic hand-pump of variable pressure and flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344391U true CN204344391U (en) | 2015-05-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420784400.1U Expired - Fee Related CN204344391U (en) | 2014-12-11 | 2014-12-11 | The secondary reinforcement hydraulic hand-pump of variable pressure and flow |
Country Status (1)
| Country | Link |
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| CN (1) | CN204344391U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386915A (en) * | 2015-12-09 | 2016-03-09 | 广西玉柴机器股份有限公司 | Manual super-pressure pump |
| CN109187200A (en) * | 2018-10-13 | 2019-01-11 | 西安航天动力测控技术研究所 | A kind of side crops industry manual loading experimental rig for test of static strength |
| CN110712059A (en) * | 2019-10-22 | 2020-01-21 | 北京海普瑞森超精密技术有限公司 | Version roller hydraulic pressure internal stay device |
-
2014
- 2014-12-11 CN CN201420784400.1U patent/CN204344391U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386915A (en) * | 2015-12-09 | 2016-03-09 | 广西玉柴机器股份有限公司 | Manual super-pressure pump |
| CN105386915B (en) * | 2015-12-09 | 2017-10-03 | 广西玉柴机器股份有限公司 | Manual super-pressure pump |
| CN109187200A (en) * | 2018-10-13 | 2019-01-11 | 西安航天动力测控技术研究所 | A kind of side crops industry manual loading experimental rig for test of static strength |
| CN110712059A (en) * | 2019-10-22 | 2020-01-21 | 北京海普瑞森超精密技术有限公司 | Version roller hydraulic pressure internal stay device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20161211 |