CN2784276Y - Double-plunger manual oil pump of cab tumbler - Google Patents
Double-plunger manual oil pump of cab tumbler Download PDFInfo
- Publication number
- CN2784276Y CN2784276Y CN 200520094916 CN200520094916U CN2784276Y CN 2784276 Y CN2784276 Y CN 2784276Y CN 200520094916 CN200520094916 CN 200520094916 CN 200520094916 U CN200520094916 U CN 200520094916U CN 2784276 Y CN2784276 Y CN 2784276Y
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- CN
- China
- Prior art keywords
- oil
- pump
- plunger
- driver
- cab
- 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 - Fee Related
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Abstract
The utility model relates to a hand-operated oil pump for tilting a driver's cab of a vehicle, particularly a double-plunger hand-operated oil pump of a device for tilting the driver's cab, and belongs to the field of automobile fitting parts. The utility model is composed of a pump body, a directional valve, a pump cover, plungers, gears, a sealing gland, a driving shaft, a descent oil pipe joint, a lift oil pipe joint, a high-pressure one-way valve, an oil inlet one-way valve and oil circuits. Two plungers are arranged inside the pump body, and either of the two plungers can carry out the oil pressing work whenever the gears rotate clockwise or counterclockwise so that a force application rod can do work when moving back and forth; as a result, when the driver's cab is tilted at the same angle, the pressing frequency of the utility model is one times less than the pressing frequency of a single-plunger oil pump and the tilting speed is improved, so that the problem that driver's cab can be just tilted at 50 DEG when the existing force application rod of the single-plunger oil pump used for the driver's cab must move back and forth for more than one hundred times while doing idle work during one half of the backward movement and the forward movement is solved. The pump is labor saving and time saving when used for tilting the driver's cab, and can serve as the oil pump for tilting the driver's cabs of various commercial vehicles.
Description
Affiliated technical field:
The utility model relates to a kind of hand oil pump of automobile cab upset usefulness, and particularly a kind of driver's cab turnover device double plunger hand oil pump belongs to vehicular spare parts device field.
Background technology:
Increase along with China's commercial vehicle/comm..vehicle dead-weight capacity, the raising that the driver and conductor requires cab comfort, also increasing constantly from weight of its operator's compartment will overturn the driver and conductor who goes out to operator's compartment and brought many inconvenience when vehicle is safeguarded.In order to address this problem, the driver's cab turnover of commercial vehicle/comm..vehicle all is that employing is installed oil pump below operator's compartment and elevating ram is finished now.Oil pump has manually and electronic two kinds, because hand oil pump is not subjected to the restriction of power supply, thereby uses morely, but the hand oil pump that generally uses in the market is the single-plunger type oil pump.Has only the half stroke acting in this kind oil pump round trip, and second half stroke does not do work, need when the driver and conductor uses move back and forth and operator's compartment can be dug 50 ° of angles more than hundred times, so the driver and conductor requires great effort when using very much, and the operating time is long with the boosting-rod more than the 800mm.
Summary of the invention:
The purpose of this utility model is: a kind of employing double plunger is provided, comes and goes when boosting-rod is afterburning and all do work, boosting-rod length reduces half, and operator's compartment is dug the driver's cab turnover device double plunger hand oil pump that same angle only needs 60 times.
The utility model is to realize above-mentioned purpose by following technical solution:
This driver's cab turnover device double plunger hand oil pump is made up of the pump housing, change-over valve, pump cover, plunger, gear, filler cap, capping, decline oil connector, lifting oil pipe joint, high pressure check valve, transmission shaft and in line check valve, pump cover is housed above the pump housing, a transmission shaft is equipped with by capping in middle part in the pump cover, and gear is housed on the transmission shaft; Decline oil connector and lifting oil pipe joint are housed below the pump housing; One side of the pump housing is equipped with change-over valve; It is characterized in that: two and gear both sides ingear plunger are housed in two plunger holes on the pump housing top in the pump cover, a high pressure check valve by the connection of high pressure check valve oil circuit is equipped with in the bottom of each plunger hole, an in line check valve by the connection of oil-feed oil circuit is equipped with at the middle part, two high pressure check valves are communicated with by high-pressure oil passage, and are communicated with change-over valve by the change-over valve oil circuit.
The utility model compared with prior art has following beneficial effect:
This driver's cab turnover device double plunger hand oil pump is owing to adopted double plunger, come and go and to do work, another plunger oil suction when a plunger is pressed oil, make the driver and conductor when the upset operator's compartment, operator's compartment is dug same angle and is pressed one times of number of times minimizing than monoplunger pump, and reversal rate improves widely.The length of boosting-rod also reduces 1/3rd than monoplunger pump, makes things convenient for the driver and conductor to operate and collects.
Description of drawings:
Fig. 1 is the front view of driver's cab turnover device double plunger hand oil pump;
Fig. 2 is the left view of driver's cab turnover device double plunger hand oil pump;
Fig. 3 is the birds-eye view of driver's cab turnover device double plunger hand oil pump.
Among the figure: 1. the pump housing, 2. change-over valve, 3. pump cover, 4. plunger, 5. gear, 6. filler cap, 7. capping, 8. decline oil connector, 9. lifting oil pipe joint, 10. high pressure check valve, 11. transmission shafts, 12. in line check valves, 13. the oil-feed oil circuit, 14. high pressure check valve oil circuits, 15. high-pressure oil passages, 16. the change-over valve oil circuit, 17. plunger holes.
The specific embodiment:
This driver's cab turnover device double plunger hand oil pump is made up of the pump housing (1), change-over valve (2), pump cover (3) plunger (4), gear (5), filler cap (6), capping (7), decline oil connector (8), lifting oil pipe joint (9), high pressure check valve (10), transmission shaft (11), in line check valve (12) and each oil circuit.The structure of change-over valve (2), pump cover (3), gear (5), filler cap (6), capping (7), decline oil connector (8), lifting oil pipe joint (9) and transmission shaft (11) is identical with existing single plunger oil pump with the installation site.Its difference is that the top of the pump housing (1) in pump cover (3) is shaped on two plunger holes (17), and a plunger (4) that is meshed with gear (5) both sides respectively is housed within it.A high pressure check valve (10) that is communicated with it by high pressure check valve oil circuit (14) is equipped with in the bottom of each plunger hole (17), two high pressure check valves (10) are communicated with by high-pressure oil passage (15), and an in line check valve (12) that communicates with it by oil-feed oil circuit (13) is equipped with on its top.
During work, drive transmission shaft (11) by boosting-rod and make gear (5) forward rotation, side gear (5) moves up and down plunger (4) by the tooth bar on the plunger (4) in plunger hole (17), when a plunger (4) moves down pressure oil, hydraulic oil enters high-pressure oil passage (15) by high pressure check valve oil circuit (14) and high pressure check valve (10), and enter oil cylinder by change-over valve oil circuit (16), change-over valve (2) and lifting oil pipe joint (9) and reach the purpose that makes the operator's compartment lifting, the in line check valve (12) in this plunger hole this moment (17) is closed.Another plunger (4) moves on then, and its plunger hole (17) is then by oil-feed oil circuit (13) and in line check valve (12) oil suction, and the high pressure check valve (10) in this plunger hole this moment (17) is closed.When boosting-rod drives transmission shaft (11) and gear (5) backward rotation, a plunger (4) is then become by oil suction presses oil, another plunger (4) is then by pressing oil to become oil suction, when finishing boosting-rod thus and coming and going work, all has a plunger (4) pressing oil work.Operator's compartment descends and then by change-over valve (16) control in-oil cylinder hydraulic oil is returned the oil pump operating room.
Claims (1)
1. driver's cab turnover device double plunger hand oil pump, it is made up of the pump housing, change-over valve, pump cover, plunger, gear, filler cap, capping, decline oil connector, lifting oil pipe joint, high pressure check valve, transmission shaft and in line check valve, pump cover is housed above the pump housing, a transmission shaft is equipped with by capping in middle part in the pump cover, and gear is housed on the transmission shaft; Decline oil connector and lifting oil pipe joint are housed below the pump housing; One side of the pump housing is equipped with change-over valve; It is characterized in that: two and gear both sides ingear plunger are housed in two plunger holes on the pump housing top in the pump cover, a high pressure check valve by the connection of high pressure check valve oil circuit is equipped with in the bottom of each plunger hole, an in line check valve by the connection of oil-feed oil circuit is equipped with at the middle part, two high pressure check valves are communicated with by high-pressure oil passage, and are communicated with change-over valve by the change-over valve oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520094916 CN2784276Y (en) | 2005-01-14 | 2005-01-14 | Double-plunger manual oil pump of cab tumbler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520094916 CN2784276Y (en) | 2005-01-14 | 2005-01-14 | Double-plunger manual oil pump of cab tumbler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2784276Y true CN2784276Y (en) | 2006-05-31 |
Family
ID=36771256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520094916 Expired - Fee Related CN2784276Y (en) | 2005-01-14 | 2005-01-14 | Double-plunger manual oil pump of cab tumbler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2784276Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696182A (en) * | 2013-12-07 | 2015-06-10 | 济南大学 | Working-frequency-adjustable external gearing plunger pump |
-
2005
- 2005-01-14 CN CN 200520094916 patent/CN2784276Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696182A (en) * | 2013-12-07 | 2015-06-10 | 济南大学 | Working-frequency-adjustable external gearing plunger pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Min Xia Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |