CN111271259A - Pump cover cylinder sleeve of manual oil pump - Google Patents
Pump cover cylinder sleeve of manual oil pump Download PDFInfo
- Publication number
- CN111271259A CN111271259A CN201811477149.3A CN201811477149A CN111271259A CN 111271259 A CN111271259 A CN 111271259A CN 201811477149 A CN201811477149 A CN 201811477149A CN 111271259 A CN111271259 A CN 111271259A
- Authority
- CN
- China
- Prior art keywords
- cylinder sleeve
- groove
- pump cover
- oil pump
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/126—Cylinder liners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/16—Feeding by means of driven pumps characterised by provision of personally-, e.g. manually-, operated pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention provides a cylinder sleeve of a pump cover of a manual oil pump, which comprises a cylindrical cylinder sleeve, wherein the lower end of the cylinder sleeve is provided with external threads, the outer side wall of the upper end of the cylinder sleeve is uniformly provided with a plurality of grooves which are parallel to the axis of the cylinder sleeve on the circumference, the length of each groove is 1/5-1/4 of the length of the cylinder sleeve, and the width of each groove is 1/4-1/3 of the outer diameter of the cylinder sleeve. The invention has the advantages that the cylinder sleeve is convenient to install, time-saving and labor-saving, can easily reach the specified torque, is firm to install and is not easy to fall off.
Description
Technical Field
The invention belongs to the field of mechanical equipment, and particularly relates to a pump cover cylinder sleeve of a manual oil pump.
Background
The hand oil pump is a machine for pumping oil in an oil tank into an oil passage. When air exists in an oil passage of the diesel engine, such as a new vehicle which is just off line, or oil in an oil tank is completely combusted, the engine cannot be started when the engine is started, because a diesel fuel pump can only work when the engine is started, and the oil in the oil tank is pumped into the oil passage by a hand oil pump at this time.
Application No.: 200920241640.6 discloses a hand oil pump, which comprises a pump body, an inlet pipeline with an oil inlet and a connector is arranged in the pump body, the oil inlet has two and is distributed on two sides of the pump body, an oil inlet channel, a pump cavity and two oil outlet channels are also arranged in the pump body, an oil inlet one-way valve is arranged between the pump cavity and the oil inlet channel, an oil outlet one-way valve is respectively arranged between the pump cavity and the two oil outlet channels, each oil outlet one-way valve is communicated with an oil outlet through the oil outlet channel corresponding to the oil outlet one-way valve, and the two oil outlets are distributed on two sides.
The manual oil pump cover lower extreme of prior art is equipped with the pump cover cylinder liner, and the upper end and the plunger of pump cover cylinder liner cooperate, the lower extreme and the pump body threaded connection of pump cover cylinder liner, and the pump cover cylinder liner of prior art mills the plane of two parallels on the lateral wall, screws up as the fork board breach, and pump cover cylinder liner pipe wall is too thin, and the plane is just very narrow, reaches not to screw up required moment of torsion, and the installation between the pump body does not target in place, appears becoming flexible the phenomenon that drops easily.
Disclosure of Invention
The invention aims to provide a pump cover cylinder sleeve of a manual oil pump, which has the advantages of simple structure, convenience in installation and high production efficiency, and is particularly suitable for a hydraulic manual oil pump.
The technical scheme of the invention is as follows:
the cylinder sleeve of the pump cover of the manual oil pump comprises a cylindrical cylinder sleeve, wherein external threads are arranged at the lower end of the cylinder sleeve, a plurality of grooves parallel to the axis of the cylinder sleeve are uniformly distributed on the outer side wall of the upper end of the cylinder sleeve at the periphery, the length of each groove is 1/5-1/4 of the length of the cylinder sleeve, and the width of each groove is 1/4-1/3 of the outer diameter of the cylinder sleeve.
The special tool matched with the groove of the cylinder sleeve is adopted, the specified torque can be easily achieved, the installation is time-saving and labor-saving, and the installation is firm and is not easy to fall off.
The groove is an arc-shaped groove.
Because the side wall of the cylinder sleeve is thin, the friction force between the cylinder sleeve and the tightening tool can be increased as far as possible by adopting the arc-shaped groove on the basis of not influencing the strength of the side wall of the cylinder sleeve, so that the installation is more convenient and quicker.
The diameter of the groove is 1/4-1/3 of the outer diameter of the cylinder sleeve.
The angle of the groove is 120-150 degrees.
The strength of the side wall of the cylinder sleeve can be increased as much as possible by adopting the grooves with the angles of 120 DEG and 150 deg.
The inner diameter of the cylinder liner is 3/5-2/3 of the outer diameter, and the depth of the groove is 1/5-1/4.
And 4 grooves parallel to the axis of the cylinder sleeve are uniformly distributed on the upper end side wall of the cylinder sleeve along the circumference.
The invention has the advantages and positive effects that: due to the adoption of the technical scheme, the pump cover cylinder sleeve is more convenient to mount; the device has the advantages of simple structure, low processing cost, high production efficiency and the like.
Drawings
FIG. 1 is a schematic diagram of a pump cover cylinder sleeve structure of a manual oil pump
FIG. 2 is a top view of the pump cover cylinder sleeve of the manual oil pump of the present invention
In the figure:
1. cylinder sleeve 2, groove 3 and external thread
Detailed Description
As shown in figures 1 and 2, the pump cover cylinder sleeve of the manual oil pump comprises a cylindrical cylinder sleeve 1, wherein the lower end of the cylinder sleeve 1 is provided with external threads 3, a plurality of grooves 2 parallel to the axis of the cylinder sleeve 1 are uniformly distributed on the outer side wall of the upper end of the cylinder sleeve 1 in the circumferential direction, the length of each groove 2 is 1/5-1/4 of the length of the cylinder sleeve 1, and the width of each groove 2 is 1/4-1/3 of the outer diameter of the cylinder sleeve 1.
The special tool matched with the groove 2 of the cylinder sleeve 1 is adopted, the specified torque can be easily achieved, the installation is time-saving and labor-saving, and the installation is firm and is not easy to fall off.
Further, as shown in fig. 2, the groove 2 is an arc-shaped groove. The side wall of the cylinder sleeve 1 is thin, and the friction force between the cylinder sleeve 1 and a tightening tool can be increased as far as possible by adopting the arc-shaped groove on the basis of not influencing the strength of the side wall of the cylinder sleeve 1, so that the installation is more convenient and quicker. The diameter of the recess 2 may be 1/4-1/3 of the outer diameter of the liner 1. In order to increase the strength of the side wall of the cylinder liner 1 as much as possible, the angle of the groove 2 is 120-150 deg.. The inner diameter of the cylinder liner 1 is 3/5-2/3 of the outer diameter, and the depth of the groove 2 is 1/5-1/4. 4 grooves 2 parallel to the axis of the cylinder sleeve 1 are uniformly distributed on the upper end side wall of the cylinder sleeve 1 in the circumferential direction. Thus, the processing is simple and the production cost is low.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (6)
1. Hand oil pump cover cylinder liner, including the cylinder liner of cylinder, the lower extreme of cylinder liner is equipped with external screw thread, its characterized in that: the outer side wall of the upper end of the cylinder sleeve is uniformly provided with a plurality of grooves parallel to the axis of the cylinder sleeve on the circumference, the length of each groove is 1/5-1/4 of the length of the cylinder sleeve, and the width of each groove is 1/4-1/3 of the outer diameter of the cylinder sleeve.
2. The hand oil pump cover cylinder sleeve of claim 1, characterized in that: the groove is an arc-shaped groove.
3. The hand oil pump cover cylinder sleeve of claim 2, characterized in that: the diameter of the groove is 1/4-1/3 of the outer diameter of the cylinder sleeve.
4. The hand oil pump cover cylinder sleeve of claim 3, characterized in that: the angle of the groove is 120-150 degrees.
5. The hand oil pump cover cylinder sleeve of claim 4, characterized in that: the inner diameter of the cylinder liner is 3/5-2/3 of the outer diameter, and the depth of the groove is 1/5-1/4.
6. The hand oil pump cover cylinder sleeve of claim 5, characterized in that: and 4 grooves parallel to the axis of the cylinder sleeve are uniformly distributed on the upper end side wall of the cylinder sleeve along the circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477149.3A CN111271259A (en) | 2018-12-04 | 2018-12-04 | Pump cover cylinder sleeve of manual oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477149.3A CN111271259A (en) | 2018-12-04 | 2018-12-04 | Pump cover cylinder sleeve of manual oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111271259A true CN111271259A (en) | 2020-06-12 |
Family
ID=70994733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811477149.3A Pending CN111271259A (en) | 2018-12-04 | 2018-12-04 | Pump cover cylinder sleeve of manual oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111271259A (en) |
-
2018
- 2018-12-04 CN CN201811477149.3A patent/CN111271259A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200612 |