CN201531416U - Air cylinder assembly of airless sprayer - Google Patents
Air cylinder assembly of airless sprayer Download PDFInfo
- Publication number
- CN201531416U CN201531416U CN2009202067227U CN200920206722U CN201531416U CN 201531416 U CN201531416 U CN 201531416U CN 2009202067227 U CN2009202067227 U CN 2009202067227U CN 200920206722 U CN200920206722 U CN 200920206722U CN 201531416 U CN201531416 U CN 201531416U
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- China
- Prior art keywords
- cylinder
- lower cover
- air cylinder
- cylinder body
- piston rod
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- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses an air cylinder assembly of an airless sprayer, which comprises a cylinder body, an air cylinder lower cover and an upper piston rod; a piston hole is formed on the air cylinder lower cover, and the upper piston rod can be in slide fit with the piston hole along the axial line of the cylinder body in a reciprocating movement manner; at least one strip of ring-shaped groove is formed on the inner circle of the piston hole along the circumferential direction, and an O-shaped sealing ring is embedded in the ring-shaped groove; compared with the structure in the prior art, a cylinder seat is eliminated, the lower cover of the cylinder body is not required to be matched with the cylinder seat, the disassembly and the assembly are more convenient, and the same sealing effect can be achieved under a condition of reducing the quantity of the sealing rings; the adopted O-shaped sealing ring is lower in cost than that of a polytetrafluoroethylene sealing ring, so as to reduce the manufacturing cost of a whole set of equipment; and in addition, the cylinder seat is removed, the upper piston rod is only required to be matched with the lower cover of the cylinder body, and the up and down reciprocating movement is smoother.
Description
Technical field
The utility model relates to a kind of cylinder assembly, particularly a kind of cylinder assembly of airless sprayer.
Background technique
The working principle of airless sprayer is to utilize high-pressure plunger pump constantly to carry coating in airtight coating pipeline, thereby in confined space, form high pressure, discharge the spray gun trigger that is connected in coating pipe end then, make high pressure be coated with materials flow and force to form atomizing, reach the coated article surface thereby penetrate by very tiny nozzle through specialty processing.This equipment spray efficiency height, economical with materials, permeability is strong, coating densification, level and smooth.
Cylinder assembly is the critical component of airless sprayer, it is to utilize pressurized air as power, alternately make cylinder piston two ends pressurized by reversing arrangement, the promotion piston pumps, the drive upper piston rod pumps, and the plunger rod in the plunger pump just lower piston rod is fixedlyed connected vertically with upper piston rod, under upper piston rod drives, in the plunger pump pump seat, do pumping, be the pressurization of the coating in the plunger pump.
The fixedly connected cylinder seat in the lower cover of air cylinder lower end of existing airless sprayer cylinder assembly, the cylinder seat is provided with piston hole, and upper piston rod passes from the piston hole of cylinder seat, and is reciprocating along the cylinder body axis with the piston secure fit; Simultaneously, employing is arranged on one group of interior teflin ring of cylinder seat piston hole as seal arrangement.This structure easy accessibility is convenient to maintenance, but to the tolerance height of cylinder seat and lower cover of air cylinder auxiliary section, and a plurality of teflin rings of needs seal, and cost is higher.
Therefore, need a kind of cylinder assembly of airless sprayer, its structure easy accessibility, be convenient to maintenance, cylinder body good sealing effect, reduce the tolerance range of part, save production cost.
The model utility content
In view of this, the utility model provides a kind of cylinder assembly of airless sprayer, its structure easy accessibility, is convenient to maintenance, cylinder body good sealing effect, reduces the tolerance range of part, saves production cost.
The cylinder assembly of airless sprayer of the present utility model comprises cylinder body, lower cover of air cylinder and upper piston rod; Described lower cover of air cylinder is provided with piston hole, and upper piston rod is being slidingly matched along reciprocating mode of cylinder body axis and piston hole; Circle along the circumferential direction is provided with at least one annular groove, the embedded O-ring seals of annular groove in the described piston hole.
Further, described lower cover of air cylinder lower end also is provided with screw, and described screw is threaded with the connecting screw rod of pump seat;
Further, described annular groove is twice.
The beneficial effects of the utility model: compare existing structure and cancelled the cylinder seat, upper piston rod piston hole direct and the cylinder body lower cover is slidingly matched, and seal ring is set directly in the annular groove on edge in the piston hole, need not to cooperate with the cylinder seat again, dismounting is convenient, is convenient to maintenance, has same sealing effect under the situation that reduces seal ring, and the O-ring seals that is adopted to compare the teflin ring cost lower, thereby reduced the cost of production of complete equipment; In addition, behind the cancellation cylinder seat, upper piston rod only needs to cooperate with the cylinder body lower cover, and it pumps more steady.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1.
Embodiment
Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the partial enlarged drawing of Fig. 1, and as shown in the figure: the cylinder assembly of the airless sprayer of present embodiment comprises cylinder body 1, lower cover of air cylinder 2 and upper piston rod 3; Cylinder body 1 and lower cover of air cylinder 2 are fixedlyed connected by hexagon head bolt, and by the seal ring sealing, setting can be along cylinder body 1 axis pistons reciprocating in the cylinder body 1, and piston and upper piston rod 3 are fixedlyed connected by connecting head along axial direction; The center of lower cover of air cylinder 2 is provided with piston hole 4, and piston hole 4 vertically runs through lower cover of air cylinder 2, and upper piston rod 3 passes from piston hole 4, and being slidingly matched along reciprocating mode of cylinder body 1 axis and piston hole 4; Circle along the circumferential direction is provided with bipassage ring connected in star 5 in the described piston hole 4, annular groove 5 embedded O-ring seals 6, and O-ring seals 6 will seal between upper piston rod 3 and the lower cover of air cylinder 2, and annular groove 5 can be spacing to O-ring seals 6, guarantees sealing effect.Described lower cover of air cylinder 2 lower ends also are provided with screw 7, and screw 7 is three, and along piston hole 4 circumferential uniform settings, three screws 7 are threaded with three connecting screw rods 9 of pump seat 8 respectively, make cylinder assembly and pump seat 8 fixing.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (3)
1. the cylinder assembly of an airless sprayer comprises cylinder body (1), lower cover of air cylinder (2) and upper piston rod (3); It is characterized in that: described lower cover of air cylinder (2) is provided with piston hole (4), and upper piston rod (3) is being slidingly matched along reciprocating mode of cylinder body (1) axis and piston hole (4); Circle along the circumferential direction is provided with at least one annular groove (5), the embedded O-ring seals of annular groove (5) (6) in the described piston hole (4).
2. the cylinder assembly of airless sprayer according to claim 1, it is characterized in that: described lower cover of air cylinder (2) lower end also is provided with screw (7), and described screw (7) is threaded with the connecting screw rod (9) of pump seat (8).
3. the cylinder assembly of airless sprayer according to claim 2 is characterized in that: described annular groove (5) is twice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202067227U CN201531416U (en) | 2009-10-20 | 2009-10-20 | Air cylinder assembly of airless sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202067227U CN201531416U (en) | 2009-10-20 | 2009-10-20 | Air cylinder assembly of airless sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201531416U true CN201531416U (en) | 2010-07-21 |
Family
ID=42526820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202067227U Expired - Fee Related CN201531416U (en) | 2009-10-20 | 2009-10-20 | Air cylinder assembly of airless sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201531416U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179359A (en) * | 2015-08-10 | 2015-12-23 | 王及忠 | Cylinder for coating machine |
| CN108361170A (en) * | 2018-02-26 | 2018-08-03 | 浙江斯耐尔涂装设备制造有限公司 | Flush coater high-pressure pump |
-
2009
- 2009-10-20 CN CN2009202067227U patent/CN201531416U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179359A (en) * | 2015-08-10 | 2015-12-23 | 王及忠 | Cylinder for coating machine |
| CN108361170A (en) * | 2018-02-26 | 2018-08-03 | 浙江斯耐尔涂装设备制造有限公司 | Flush coater high-pressure pump |
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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: 20100721 Termination date: 20101020 |