CN203431256U - Dustproof inlet valve for hammer body - Google Patents
Dustproof inlet valve for hammer body Download PDFInfo
- Publication number
- CN203431256U CN203431256U CN201320358815.8U CN201320358815U CN203431256U CN 203431256 U CN203431256 U CN 203431256U CN 201320358815 U CN201320358815 U CN 201320358815U CN 203431256 U CN203431256 U CN 203431256U
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- valve
- valve seat
- inner cavity
- base cavity
- gas
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- Expired - Fee Related
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Abstract
The utility model relates to an inlet valve, especially to a dustproof inlet valve for a hammer body. The inlet valve comprises a valve seat with a plurality of fresh air inlets communicating with the inner cavity of the valve seat, and an air outlet is arranged on the bottom of the inner cavity of the valve seat. A floating valve core made of aluminum or aluminum alloy and capable of moving up and down is arranged in the inner cavity of the valve seat, and a circlip is arranged on the lower portion of the inner cavity of the valve seat. An air inlet channel is arranged on the upper portion of the inner cavity of the valve seat, and the internal diameter of an air inlet channel is smaller than the diameter of the inner cavity of the valve seat. A projection portion arranged on the upper end face of the floating valve core extends into the air inlet channel to form a guide rod, and the step surface of the base part of the guide rod and the opening of the air inlet channel form hermetic seal. The dustproof inlet valve has excellent effect, is simple in structure, improves the service lifetime of sealing member, saves use cost, reduces sgraffito rate of a cylinder body, and prevents the hydraulic oil of an excavator from becoming black oil.
Description
Technical field
The utility model relates to a kind of suction valve, especially relates to the dustproof suction valve of a kind of breaking hammer main body.
Background technique
Hydraulic breaking hammer (hereinafter to be referred as quartering hammer) is mainly used in the fragmentation of the engineering constructions such as building, road, bridge, irrigation canals and ditches, mine and removes in the middle of operation.Because the environment of operation is severe, operating mode is complicated, to the structural strength of quartering hammer own and Sealing, requires very strict.Common quartering hammer is not when being installed into air valve device, lower cylinder body inner chamber is (backward stroke of the piston) suction dust in quartering hammer strike process easily, make dust when backward stroke of the piston, bring middle cylinder body into, very easily damage the damage of the unrepairables such as Sealing and middle cylinder body plucking.
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Summary of the invention
In order to solve in quartering hammer working procedure dust, suck problem, the utility model provides a kind of breaking hammer main body suction valve that prevents dust, the working life of greatly improving quartering hammer Sealing.
The technological scheme that the utility model technical solution problem adopts is: the breaking hammer main body suction valve that prevents dust, described suction valve comprises valve seat, this valve seat top has a plurality of intake openings, intake opening communicates with this valve base cavity, described valve base cavity bottom is provided with exhaust outlet, in described valve base cavity, be provided with a floating plug moving up and down, a circlip is equipped with in described valve base cavity bottom; Described valve base cavity top is provided with a gas-entered passageway, the internal diameter of this gas-entered passageway is much smaller than described valve base cavity diameter, described floating plug upper-end surface is provided with lug boss and extends into described gas-entered passageway formation guide rod, forms hermetic seal when the step surface of described guide rod base portion and the laminating of described gas-entered passageway opening.
Working principle: this suction valve mainly changes to control suction valve spool by blow cavity internal air pressure and moves up and down, forms gas control one-way valve, thereby controls air flow.Valve seat one is as air-flow path, the 2nd, as valve body, play leading role.Circlip effect is to prevent that spool from coming off.Key is that spool must adopt the material manufacture that material is lighter, because only in this way, blow cavity internal air pressure could effectively be controlled spool folding.
Further, described floating plug adopts pure aluminum or aluminum alloy to make.
Beneficial effect: the dustproof air inlet valve device of this hydraulic breaking hammer actual Use Limitation fruit obviously, constructional device is convenient and simple, the working life of the Sealing improving, the user cost of the client who greatly saves when routine use, cylinder body plucking probability in simultaneously reducing, prevents that hydraulic oil dirty oil phenomenon from appearring in excavator.
Accompanying drawing explanation
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is outside schematic diagram of the present utility model,
Fig. 2 is air-suction state schematic diagram of the present utility model,
Fig. 3 is the view of giving vent to anger of the present utility model,
Fig. 4 is mounting point of the present utility model schematic diagram.
Embodiment
Referring to Fig. 1,4, as shown in the figure, the breaking hammer main body suction valve that prevents dust, comprises valve seat 1, and valve seat 1 top has a plurality of intake openings 4, intake opening 4 communicates with valve seat 1 inner chamber, valve seat 1 intracavity bottom is provided with exhaust outlet, is provided with a floating plug 2 moving up and down in valve seat 1 inner chamber, and a circlip 3 is equipped with in valve seat 1 inner chamber bottom, for limiting the stroke of floating plug 2, prevent that it from coming off.
In the present embodiment, floating plug 2 is taked the alumiaum article that material is lighter, generally adopts pure aluminum or aluminum alloy to make.
As shown in Figure 3, valve seat 1 inner chamber top is provided with a gas-entered passageway, the internal diameter of this gas-entered passageway is much smaller than valve seat 1 intracavity diameter, floating plug 2 upper-end surfaces are provided with lug boss and extend into described gas-entered passageway formation guide rod, when the step surface of described guide rod base portion and the laminating of described gas-entered passageway opening, form hermetic seal, stop air to flow out.This suction valve mainly changes to control floating plug 2 by blow cavity internal air pressure and moves up and down, thereby controls air flow.
As shown in Figure 2, when quartering hammer piston return, blow cavity forms negative pressure, and floating plug 2 falls, by circlip 3, stopped, clean air enters blow cavity by suction valve, now, seam crossing between drill steel 5 and lower cylinder body lining 6 is normal pressure, and air amount, does not prevent that dust from entering lower cylinder body.As shown in Figure 3, Figure 4, when piston hits, blow cavity pressure increases, and floating plug 2 is floated by gas pressure, the gas-entered passageway on closed valve seat 1 inner chamber top, and air cannot pass through.Now, the seam crossing between drill steel 5 and lower cylinder body lining 6 is malleation, has in chamber always and outwards sprays air-flow, prevents that equally dust from entering lower cylinder body.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that not departing from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present utility model is limited by claims and equivalent thereof.
Claims (1)
1. the dustproof suction valve of breaking hammer main body, it is characterized in that: described suction valve comprises valve seat, this valve seat top has a plurality of intake openings, intake opening communicates with this valve base cavity, described valve base cavity bottom is provided with exhaust outlet, in described valve base cavity, be provided with a floating plug moving up and down, a circlip is equipped with in described valve base cavity bottom; Described valve base cavity top is provided with a gas-entered passageway, the internal diameter of this gas-entered passageway is much smaller than described valve base cavity diameter, described floating plug upper-end surface is provided with lug boss and extends into described gas-entered passageway formation guide rod, forms hermetic seal when the step surface of described guide rod base portion and the laminating of described gas-entered passageway opening.
2. the dustproof suction valve of breaking hammer main body according to claim 1, is characterized in that: described floating plug adopts pure aluminum or aluminum alloy to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320358815.8U CN203431256U (en) | 2013-06-21 | 2013-06-21 | Dustproof inlet valve for hammer body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320358815.8U CN203431256U (en) | 2013-06-21 | 2013-06-21 | Dustproof inlet valve for hammer body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431256U true CN203431256U (en) | 2014-02-12 |
Family
ID=50060293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320358815.8U Expired - Fee Related CN203431256U (en) | 2013-06-21 | 2013-06-21 | Dustproof inlet valve for hammer body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203431256U (en) |
-
2013
- 2013-06-21 CN CN201320358815.8U patent/CN203431256U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20210621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |