CN201068847Y - Hydraulic oil pump for tray conveying vehicle - Google Patents
Hydraulic oil pump for tray conveying vehicle Download PDFInfo
- Publication number
- CN201068847Y CN201068847Y CNU200720051949XU CN200720051949U CN201068847Y CN 201068847 Y CN201068847 Y CN 201068847Y CN U200720051949X U CNU200720051949X U CN U200720051949XU CN 200720051949 U CN200720051949 U CN 200720051949U CN 201068847 Y CN201068847 Y CN 201068847Y
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- CN
- China
- Prior art keywords
- oil pump
- pump case
- piston rod
- shell
- pump
- 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 discloses a hydraulic oil pump for a pallet truck. The oil pump comprises a shell, a sealing lid fixedly connected with the top of the shell and a piston rod arranged in the pump shell; wherein, the upper and the lower ends of the piston rod are respectively sleeved with an oil seal which are contacted with the inner wall of the pump shell. As the product the top of the shell is firmly connected with a sealing lid, the pump can have an opening on the pump shell bigger than that of the prior product; therefore the machining of the inner side of the pump shell is facilitated. In addition, the design is beneficial to the installation and maintenance of the piston rod and the oil seal.
Description
Technical field
The utility model relates to a kind of manual hydraulic tray transport cart, particularly a kind of hydraulic-pressure pump that is used on the tray truck.
Background technique
Manual hydraulic tray transport cart is a kind of means of transportation of pellet type goods, is widely used in places such as warehouse, harbour, market; The door frame of carrier rises and descends, generally be to adopt hydraulic-pressure pump to control, and existing hydraulic-pressure pump is normally directly placed piston rod in oil pump case, and be set with oil sealing at the upper and lower end of piston rod and seal, present oil pump case is normally directly cast and is formed, carry out inside processing then, because the opening of oil pump case is less, thereby cause the machining difficulty, it is also inconvenient that piston rod and oil sealing are installed in addition, and when oil sealing occur to damage the back and changes also difficulty comparatively, thereby be difficult to meet people's usage requirement.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of machining convenience, installs and the easy hydraulic-pressure pump of maintenance.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of hydraulic-pressure pump that is used on the tray truck, it comprises oil pump case, and the oil pump case roof anchorage is connected with sealing cover, in the described oil pump case piston rod is installed, and the upper and lower end of piston rod is set with and the contacted oil sealing of oil pump case inwall;
As a modification of the embodiment above, adopt between described sealing cover and the oil pump case and be threaded;
Further improvement as to above-mentioned mode of execution is provided with seal ring between described sealing cover and the oil pump case.
The beneficial effects of the utility model are: this product is owing to be connected with sealing cover in the oil pump case roof anchorage, thereby make that the original product of aperture efficiency of oil pump case is bigger, thereby be convenient to carry out the interior machining of oil pump case, in addition, this design also helps the I﹠M of piston rod and oil sealing.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Embodiment
With reference to Fig. 1, a kind of hydraulic-pressure pump that is used on the tray truck, comprise oil pump case 1, oil pump case 1 roof anchorage is connected with sealing cover 2, adopt between sealing cover 2 and the oil pump case 1 and be threaded, certainly can also adopt other mounting type, in the described oil pump case 1 piston rod 3 is installed, the upper and lower end of piston rod 3 is set with and the contacted oil sealing 4,5 of oil pump case 1 inwall.
This product is provided with seal ring 6 in order to make that sealing is better between sealing cover 2 and the oil pump case 1 between it.
This product is owing to be connected with sealing cover 2 in oil pump case 1 roof anchorage, thereby makes that the original product of aperture efficiency of oil pump case 1 is bigger, thereby is convenient to carry out the machining in the oil pump case 1, and in addition, this design also helps the I﹠M of piston rod and oil sealing.
Claims (3)
1. hydraulic-pressure pump that is used on the tray truck, it is characterized in that: comprise oil pump case (1), oil pump case (1) roof anchorage is connected with sealing cover (2), piston rod (3) is installed in the described oil pump case (1), and the upper and lower end of piston rod (3) is set with and the contacted oil sealing of oil pump case (1) inwall (4,5).
2. a kind of hydraulic-pressure pump that is used on the tray truck according to claim 1 is characterized in that: adopt between described sealing cover (2) and the oil pump case (1) to be threaded.
3. a kind of hydraulic-pressure pump that is used on the tray truck according to claim 1 is characterized in that: be provided with seal ring (6) between described sealing cover (2) and the oil pump case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720051949XU CN201068847Y (en) | 2007-05-28 | 2007-05-28 | Hydraulic oil pump for tray conveying vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720051949XU CN201068847Y (en) | 2007-05-28 | 2007-05-28 | Hydraulic oil pump for tray conveying vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201068847Y true CN201068847Y (en) | 2008-06-04 |
Family
ID=39490230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720051949XU Expired - Fee Related CN201068847Y (en) | 2007-05-28 | 2007-05-28 | Hydraulic oil pump for tray conveying vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201068847Y (en) |
-
2007
- 2007-05-28 CN CNU200720051949XU patent/CN201068847Y/en not_active Expired - Fee Related
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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: 20080604 Termination date: 20110528 |