CN202833004U - Manual hydraulic pump - Google Patents
Manual hydraulic pump Download PDFInfo
- Publication number
- CN202833004U CN202833004U CN 201220318150 CN201220318150U CN202833004U CN 202833004 U CN202833004 U CN 202833004U CN 201220318150 CN201220318150 CN 201220318150 CN 201220318150 U CN201220318150 U CN 201220318150U CN 202833004 U CN202833004 U CN 202833004U
- Authority
- CN
- China
- Prior art keywords
- oil
- way valve
- pump
- check valve
- manual
- Prior art date
- 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 - Lifetime
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Abstract
The utility model relates to a manual hydraulic pump which comprises a manual pump. An oil absorbing check valve and an oil sending check valve are respectively arranged in pipelines at two sides of the manual pump, the oil absorbing check valve is connected with an oil tank, an oil-out end of the oil sending check valve is externally connected with an operating cylinder, the oil-out end of the oil sending check valve is connected with an oil-in end of the oil absorbing check valve through an oil returning pipeline, and a decompression valve is arranged in the oil returning pipeline. The manual hydraulic pump overcomes the defects that a manual operating mechanism of an ordinary pneumatic or hydraulic device in the prior art is complicated th design, large in volume and low in reliability and reduces connection of external oil ways through the design. The manual hydraulic pump has the advantages of being simple and tight in structure, convenient to operate and high in reliability.
Description
Technical field
The utility model relates to a kind of hydraulic hand-pump.
Background technique
When pneumatic and hydraulic equipment breaks down, need to carry out manually-operable in automatic running.The complex structure of existing manual-operating mechanism, volume is large, the pipeline connection is numerous and diverse, the poor effect in practice.
Summary of the invention
Common manual-operating mechanism pneumatic or hydraulic equipment designs defective complicated, that volume is large, reliability is lower in the prior art in order to overcome, the utility model provides a kind of hydraulic hand-pump, this hydraulic hand-pump simple and compact for structure, easy to operate, reliability is high.
The technological scheme that its technical problem that solves the utility model adopts is: comprise hand pump, oil sucting one-way valve is set respectively in the pipeline of hand pump both sides and send oily one-way valve, oil sucting one-way valve connects fuel tank, send the external operating cylinder of oil outlet end of oily one-way valve, send between the oil inlet end of the oil outlet end of oily one-way valve and oil sucting one-way valve to link to each other by return line, be provided with Decompression valves in the return line.
Send the oil outlet end of oily one-way valve to be external to operating cylinder by selector valve.
The utility model has reduced outside oil circuit and has connected by above-mentioned specific design, has advantage simple and compact for structure, easy to operate, that reliability is high.
Description of drawings
Below in conjunction with drawings and Examples the detailed content that this is real is described.
Fig. 1 is the utility model embodiment one schematic diagram of mechanism.
Fig. 2 is the utility model embodiment two schematic diagram of mechanism.
Embodiment
Embodiment one as shown in Figure 1, comprise hand pump 1, oil sucting one-way valve 4 is set respectively in the pipeline of hand pump 1 both sides and send oily one-way valve 5, oil sucting one-way valve 2 connects fuel tank 6, send the external operating cylinder 8 of oil outlet end of oily one-way valve 5, send between the oil inlet end of the oil outlet end of oily one-way valve 3 and oil sucting one-way valve 2 to link to each other by return line 7, be provided with Decompression valves 3 in the return line.Under manual operation state, Decompression valves 3 is in the closed position, start hand pump 1 and deliver to external operating cylinder 8 by oil sucting one-way valve 4 end inhalant liquid force feeds and from the oil outlet end that send oily one-way valve 3, the keying of the piston rod control working equipment in the operating cylinder 8, when opening Decompression valves 3, oil pressure is got back to fuel tank 6 by return line 7, and working equipment resets.Embodiment two as shown in Figure 2, send the oil outlet end of oily one-way valve 5 to be external to operating cylinder 8 by selector valve 2, operating cylinder 8 herein is divided into to be opened cylinder 8A and closes cylinder 8B, under manual operation state, Decompression valves 3 is in the closed position, start hand pump 1 by oil sucting one-way valve 4 end inhalant liquid force feeds and deliver to external operating cylinder from the oil outlet end that send oily one-way valve 3 and namely open cylinder 8A, open the unlatching of the piston rod control working equipment among the cylinder 8A, when working equipment need reset, oil circuit is switched to closes cylinder 8B, starts equally hand pump 1 until working equipment resets closes.Above-described embodiment only is that the preferred implementation to a kind of hydraulic hand-pump of the utility model is described; be not that design and scope to model utility limits; under the prerequisite that does not break away from the utility model scheme; various external form modification and improvement that those skilled in the art make the technical solution of the utility model all should fall into the protection domain of a kind of hydraulic hand-pump of the utility model.
Claims (2)
1. hydraulic hand-pump, comprise hand pump, it is characterized in that in the pipeline of hand pump (1) both sides, arranging respectively oil sucting one-way valve (4) and send oily one-way valve (5), oil sucting one-way valve (2) connects fuel tank (6), send the external operating cylinder of oil outlet end (8) of oily one-way valve (5), send between the oil inlet end of the oil outlet end of oily one-way valve (3) and oil sucting one-way valve (2) to link to each other by return line (7), be provided with Decompression valves (3) in the return line.
2. hydraulic hand-pump according to claim 1 is characterized in that sending the oil outlet end of oily one-way valve (5) to be external to operating cylinder (8) by selector valve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220318150 CN202833004U (en) | 2012-07-03 | 2012-07-03 | Manual hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220318150 CN202833004U (en) | 2012-07-03 | 2012-07-03 | Manual hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833004U true CN202833004U (en) | 2013-03-27 |
Family
ID=47944729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220318150 Expired - Lifetime CN202833004U (en) | 2012-07-03 | 2012-07-03 | Manual hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691738A (en) * | 2018-08-21 | 2018-10-23 | 许尚志 | Compound two-way manual hydraulic pump |
-
2012
- 2012-07-03 CN CN 201220318150 patent/CN202833004U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691738A (en) * | 2018-08-21 | 2018-10-23 | 许尚志 | Compound two-way manual hydraulic pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |