CN204942611U - A kind of suction valve with voltage regulation function - Google Patents
A kind of suction valve with voltage regulation function Download PDFInfo
- Publication number
- CN204942611U CN204942611U CN201520601996.1U CN201520601996U CN204942611U CN 204942611 U CN204942611 U CN 204942611U CN 201520601996 U CN201520601996 U CN 201520601996U CN 204942611 U CN204942611 U CN 204942611U
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- Prior art keywords
- gas circuit
- gas
- anger
- plug
- source
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Abstract
The utility model discloses a kind of suction valve with voltage regulation function, comprise valve body, described valve body offers gas source air inlet, the interface of giving vent to anger be connected with switching control pilot, the intake interface be connected with switching control pilot and air outlet, be provided with the source of the gas gas circuit of gas source air inlet and orifice of giving vent to anger, the gas circuit and control the adjustment gas circuit that source of the gas gas circuit to be communicated with gas circuit of giving vent to anger or to disconnect of giving vent to anger that intake interface is communicated with air outlet in described valve body.When the utility model controls, when air hoist is equilibrated at aerial, switching control pilot is closed, if air hoist leaks, the gas in source of the gas can enter air hoist by the utility model thus makes the air pressure in air hoist remain on stationary value thus avoid the generation of security incident.
Description
Technical field
The utility model relates to a kind of suction valve, is specifically related to a kind of suction valve with voltage regulation function.
Background technique
Air hoist is by gas piston or blade drive work, when load-carrying air hoist aloft fixes a point to suspend, in air hoist, the gas of cylinder cannot flow into from switching control pilot and flow out, air pressure in cylinder keeps constant in theory, but because whole air hoist system machining error or sealability are not fine, in fact can there are some gas leak phenomenons, cause the air pressure in cylinder to reduce, the load of air hoist is declined, brings potential safety hazard to industrial production.
Such as, in industrial processes, sometimes need by air hoist load to be lifted to carry out fixed point balance in the air.After load aloft balances, the air pressure in the cylinder of air hoist is made to decline for above-mentioned reasons, and the gas in source of the gas cannot carry out tonifying Qi to air hoist in time by switching control pilot, the load be hung on air hoist will be made to decline suddenly, and this may cause personal injury to the operating personnel be in below load.
For solving the problem, generally after switching control pilot, add a solenoid valve again, when the air pressure in the cylinder of air hoist is enough, switching control pilot is closed; When underpressure in cylinder, electromagnetic valve switching control pilot is opened, but this mode makes whole system structure become complicated.Also have kind of a mode to be by manpower adjustment, preset the unlatching of the valves such as angle pedestal valve, regulate pressure, but the sensitivity that this mode changes pressure is poor.Therefore need a kind of gas circuit structure simple, be quick on the draw, there is the suction valve of automatic Regulation function.
Model utility content
For the technical problem existed in prior art, the purpose of this utility model is: provide a kind of suction valve with voltage regulation function.
The purpose of this utility model is achieved through the following technical solutions: a kind of suction valve with voltage regulation function, comprise valve body, described valve body offers gas source air inlet, the interface of giving vent to anger be connected with switching control pilot, the intake interface be connected with switching control pilot and air outlet, be provided with the source of the gas gas circuit of gas source air inlet with orifice of giving vent to anger in described valve body, the gas circuit and control the adjustment gas circuit that source of the gas gas circuit is communicated with gas circuit of giving vent to anger or disconnects of giving vent to anger that intake interface is communicated with air outlet, gas circuit is regulated to comprise the piston spring controlling air cavity and be successively set in described control air cavity, plug piston, gas circuit plug, spool, valve core spring and pressure regulating cover, described piston spring one end is connected to and controls on air cavity, the other end is connected on plug piston, gas circuit plug offers venting channels, the valve rod of described spool extends to the below of plug piston through venting channels, described gas circuit plug is fixed on and controls in air cavity, pressure regulating cover be connected to control air cavity air cavity mouth on, valve core spring one end is connected on pressure regulating cover, and the other end is connected on spool, described source of the gas gas circuit with give vent to anger gas circuit be communicated to respectively be positioned at gas circuit plug two ends control air cavity on.
Preferably, the gas circuit that gas circuit of giving vent to anger described in is communicated with control air cavity comprising shoulder hole, being arranged at the stifled ball in described shoulder hole and the spiral plug for preventing described stifled ball from departing from shoulder hole.
Preferably, the diameter holes of described shoulder hole is communicated with control air cavity, the hole, large footpath of shoulder hole is communicated with gas circuit of giving vent to anger, and stifled ball is arranged in the hole, large footpath of shoulder hole and between spiral plug and the diameter holes of shoulder hole, the diameter holes diameter of shoulder hole is less than stifled bulb diameter.
Preferably, described spiral plug offers vent, spiral plug outer peripheral surface is provided with connecting thread, and spiral plug is connected in shoulder hole by connecting thread.
Preferably, described pressure regulating cover is threadedly attached on the air cavity mouth of control air cavity.
Preferably, described source of the gas gas circuit and giving vent to anger gas circuit is respectively equipped with for regulating the air inlet adjustment bolt of source of the gas gas circuit air inflow and for regulating the adjusting bolt of giving vent to anger of gas circuit gas output of giving vent to anger.
Preferably, described source of the gas gas circuit and gas circuit of giving vent to anger are L-shaped gas circuit, and described air inlet adjustment bolt and adjusting bolt of giving vent to anger are connected respectively to source of the gas gas circuit and give vent to anger in the corner of gas circuit.
Preferably, the main body of described spool is tightly connected by seal ring and control air cavity.
Preferably, on the venting channels of described gas circuit plug, circumference is evenly provided with the stem guiding projection protruded to venting channels axle center, described stem guiding projection is at least two, surrounds stem guiding hole between the protruding end of described stem guiding projection, forms air cleft between two stem guiding projections.
Preferably, described stem guiding projection is four, and four stem guiding projections are equiangularly arranged in the valve rod entrance of venting channels respectively, surround stem guiding hole between the protruding end of four stem guiding projections.
The utility model has following advantage and effect relative to prior art:
1, when the utility model controls, when air hoist is equilibrated at aerial, switching control pilot is closed, if air hoist leaks, the gas in source of the gas can enter air hoist by the utility model thus makes the air pressure in air hoist remain on stationary value thus avoid the generation of security incident.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional drawing at B-B place in Fig. 1;
Fig. 3 is the worm's eye view of Fig. 1;
Fig. 4 be the utility model when being in the normal state plug piston get lodged in the schematic diagram on gas circuit plug;
Fig. 5 is the schematic diagram that the valve rod of spool of the present utility model pushes plug piston open;
Fig. 6 is the plan view of gas circuit plug of the present utility model;
Fig. 7 is the sectional view of gas circuit plug of the present utility model;
Fig. 8 is the worm's eye view of gas circuit plug of the present utility model;
Fig. 9 is the stereogram of gas circuit plug of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but mode of execution of the present utility model is not limited thereto.
Embodiment one:
A kind of suction valve with voltage regulation function, comprise valve body 1, described valve body offers gas source air inlet 2, the interface 3 of giving vent to anger be connected with switching control pilot, the intake interface 4 be connected with switching control pilot and air outlet 5, be provided with the source of the gas gas circuit 6 of gas source air inlet with orifice of giving vent to anger in described valve body, the gas circuit 7 and control the adjustment gas circuit that source of the gas gas circuit is communicated with gas circuit of giving vent to anger or disconnects of giving vent to anger that intake interface is communicated with air outlet, gas circuit is regulated to comprise the piston spring 8 controlling air cavity and be successively set in described control air cavity, plug piston 9, gas circuit plug 10, spool 11, valve core spring 12 and pressure regulating cover 13, described piston spring one end is connected to and controls on air cavity, the other end is connected on plug piston, gas circuit plug offers venting channels 14, the valve rod of described spool extends to the below of plug piston through venting channels, gas channel is formed between venting channels and valve rod, preferably, the diameter of venting channels is greater than the diameter of valve rod, certain venting channels also can be multiple, valve rod is connected in one, other venting channels then plays ventilation, no longer launch to describe at this, described gas circuit plug is fixed on and controls in air cavity, pressure regulating cover be connected to control air cavity air cavity mouth on, valve core spring one end is connected on pressure regulating cover, and the other end is connected on spool, described source of the gas gas circuit with give vent to anger gas circuit be communicated to respectively be positioned at gas circuit plug two ends control air cavity on.
Preferably, the gas circuit that gas circuit of giving vent to anger described in is communicated with control air cavity comprising shoulder hole 15, being arranged at the stifled ball 16 in described shoulder hole and the spiral plug 17 for preventing described stifled ball from departing from shoulder hole.
Preferably, the diameter holes of described shoulder hole is communicated with control air cavity, the hole, large footpath of shoulder hole is communicated with gas circuit of giving vent to anger, and stifled ball is arranged in the hole, large footpath of shoulder hole and between spiral plug and the diameter holes of shoulder hole, the diameter holes diameter of shoulder hole is less than stifled bulb diameter.
Preferably, described spiral plug offers vent, spiral plug outer peripheral surface is provided with connecting thread, spiral plug is connected in shoulder hole by connecting thread, setting like this is in being coupled together by spiral plug easily, is undertaken exchanging the space that can also limit stifled ball by the gas of vent to spiral plug both sides simultaneously.
Preferably, described pressure regulating cover is threadedly attached on the air cavity mouth of control air cavity.Setting like this is in controlling the amount of force of valve core spring to spool to pressure regulating cover adjustment easily.
Preferably, described source of the gas gas circuit and giving vent to anger gas circuit is respectively equipped with for regulating the air inlet adjustment bolt 18 of source of the gas gas circuit air inflow and for regulating the adjusting bolt 19 of giving vent to anger of gas circuit gas output of giving vent to anger.Preferred, described source of the gas gas circuit and gas circuit of giving vent to anger are L-shaped gas circuit, and described air inlet adjustment bolt and adjusting bolt of giving vent to anger are connected respectively to source of the gas gas circuit and give vent to anger in the corner of gas circuit.Regulate the Principles of Regulation of source of the gas gas circuit air inflow identical with regulating the principle of gas circuit gas output of giving vent to anger, it is that the channel sized blocking to control source of the gas gas circuit or gas circuit of giving vent to anger by air inlet adjustment bolt and the passage of adjusting bolt to source of the gas gas circuit or gas circuit of giving vent to anger of giving vent to anger makes flow increase or reduction.
Preferably, the main body of described spool is tightly connected by seal ring 20 and control air cavity, the space at spool two ends can be kept apart, and avoiding producing gas leakage affects normal work.
Preferably, on the venting channels of described gas circuit plug, circumference is evenly provided with the stem guiding projection 21 protruded to venting channels axle center, described stem guiding projection is at least two, surrounds between the stem guiding projection of stem guiding hole 22, two and form air cleft 23 between the protruding end of described stem guiding projection.
Preferred, described stem guiding projection is four, and four stem guiding projections are equiangularly arranged in the valve rod entrance of venting channels respectively, surround stem guiding hole between the protruding end of four stem guiding projections.Good leading role can be played to valve rod in the stem guiding hole formed between stem guiding projection, guarantee to make valve rod vertically act on plug piston, make send out should be more accurate, sensitive, form air cleft between stem guiding projection simultaneously, can ensure when plug piston is backed down, gas flows out to gas circuit of giving vent to anger smoothly from air cleft after venting channels enters, and avoids the main body due to spool venting channels resistance blocked up and affect gas make-up.
Working procedure of the present utility model and working principle: source of the gas is received in gas source air inlet, by giving vent to anger, interface is connected with the entrance of switching control pilot, intake interface is connected with the outlet of switching control pilot, air outlet is connected with air hoist, open source of the gas, gas enters rear section gas from gas source air inlet and enters into control air cavity, but due under the utility model normality, plug piston contacts with gas circuit plug and to be blocked by the suction port of venting channels under the promotion of piston spring, now gas can not enter into through controlling air cavity gas circuit of giving vent to anger, gas now enters into switching control pilot through interface of giving vent to anger, by switching control pilot control whether to air hoist air feed to start air hoist, when needs are to air hoist air feed, switching control pilot controls to open, now gas outputs to air hoist from air outlet after intake interface enters, air hoist starts,
Now closing switch control valve, turn pressure regulating cover to adjust the active force of valve core spring to spool, power suffered by spool both sides is balanced, when ignoring the active force of the gas in air hoist to plug piston, the thrust of valve core spring to spool is made to equal the thrust of piston spring to plug piston, source of the gas air pressure to the gas in the pressure of plug piston and air hoist to the active force sum of spool (below by the thrust of piston spring to plug piston, source of the gas air pressure to the gas in the pressure of plug piston and air hoist to the active force sum of spool referred to as three power sums) time reach balance.
After having adjusted, after switching control pilot is closed, when air hoist produces gas leakage, then lose the balance of spool, namely the thrust of valve core spring to spool is greater than three power sums, valve core spring promotes spool and moves, pushed open by plug piston by means of valve rod, now, plug piston and gas circuit plug form path, source gas to enter into after gas circuit of giving vent to anger to air hoist make-up gas by the path formed through venting channels, makes air hoist reach the effect of constant voltage.
When after make-up gas, after the thrust of valve core spring to spool equals three power sums, spool automatically resets, and gas circuit plug blocks by plug piston; If when again producing gas leakage, the utility model automatically can repeat said process and carry out supplementing of gas.
If when occurring that source of the gas air pressure reduces or suddenly disappears, gas can flow to shoulder hole from the cylinder of air hoist rapidly, the aperture of diameter holes is blocked thus gas circuit is blocked by the stifled ball impacted in shoulder hole, avoid the gas loss in air hoist, ensure that the stability of work, this is due to when source of the gas air pressure reduces or suddenly disappears, throughput is larger, therefore gas circuit blocks by stifled ball, if but air hoist produces gas leakage, because the airflow direction when air hoist airflow direction produced when leaking gas reduces with source of the gas air pressure or suddenly disappears is contrary, therefore gas circuit can not block by stifled ball, thus realize make-up gas smoothly.
Above-described embodiment is the utility model preferably mode of execution; but mode of execution of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (10)
1. one kind has the suction valve of voltage regulation function, it is characterized in that: comprise valve body, described valve body offers gas source air inlet, the interface of giving vent to anger be connected with switching control pilot, the intake interface be connected with switching control pilot and air outlet, be provided with the source of the gas gas circuit of gas source air inlet with orifice of giving vent to anger in described valve body, the gas circuit and control the adjustment gas circuit that source of the gas gas circuit is communicated with gas circuit of giving vent to anger or disconnects of giving vent to anger that intake interface is communicated with air outlet, gas circuit is regulated to comprise the piston spring controlling air cavity and be successively set in described control air cavity, plug piston, gas circuit plug, spool, valve core spring and pressure regulating cover, described piston spring one end is connected to and controls on air cavity, the other end is connected on plug piston, gas circuit plug offers venting channels, the valve rod of described spool extends to the below of plug piston through venting channels, described gas circuit plug is fixed on and controls in air cavity, pressure regulating cover be connected to control air cavity air cavity mouth on, valve core spring one end is connected on pressure regulating cover, and the other end is connected on spool, described source of the gas gas circuit with give vent to anger gas circuit be communicated to respectively be positioned at gas circuit plug two ends control air cavity on.
2. the suction valve with voltage regulation function according to claim 1, is characterized in that: described in give vent to anger gas circuit with control the gas circuit that is communicated with of air cavity and comprising shoulder hole, being arranged at the stifled ball in described shoulder hole and the spiral plug for preventing described stifled ball from departing from shoulder hole.
3. the suction valve with voltage regulation function according to claim 2, it is characterized in that: the diameter holes of described shoulder hole is communicated with control air cavity, the hole, large footpath of shoulder hole is communicated with gas circuit of giving vent to anger, stifled ball is arranged in the hole, large footpath of shoulder hole and between spiral plug and the diameter holes of shoulder hole, the diameter holes diameter of shoulder hole is less than stifled bulb diameter.
4. the suction valve with voltage regulation function according to Claims 2 or 3, is characterized in that: described spiral plug offers vent, and spiral plug outer peripheral surface is provided with connecting thread, and spiral plug is connected in shoulder hole by connecting thread.
5. the suction valve with voltage regulation function according to claim 1, is characterized in that: described pressure regulating cover is threadedly attached on the air cavity mouth of control air cavity.
6. the suction valve with voltage regulation function according to claim 1, is characterized in that: described source of the gas gas circuit and giving vent to anger gas circuit is respectively equipped with for regulating the air inlet adjustment bolt of source of the gas gas circuit air inflow and for regulating the adjusting bolt of giving vent to anger of gas circuit gas output of giving vent to anger.
7. the suction valve with voltage regulation function according to claim 6, it is characterized in that: described source of the gas gas circuit and gas circuit of giving vent to anger are L-shaped gas circuit, described air inlet adjustment bolt and adjusting bolt of giving vent to anger are connected respectively to source of the gas gas circuit and give vent to anger in the corner of gas circuit.
8. the suction valve with voltage regulation function according to claim 1, is characterized in that: the main body of described spool is tightly connected by seal ring and control air cavity.
9. the suction valve with voltage regulation function according to claim 1, it is characterized in that: on the venting channels of described gas circuit plug, circumference is evenly provided with the stem guiding projection protruded to venting channels axle center, described stem guiding projection is at least two, surround stem guiding hole between the protruding end of described stem guiding projection, between two stem guiding projections, form air cleft.
10. the suction valve with voltage regulation function according to claim 9, it is characterized in that: described stem guiding projection is four, four stem guiding projections are equiangularly arranged in the valve rod entrance of venting channels respectively, surround stem guiding hole between the protruding end of four stem guiding projections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601996.1U CN204942611U (en) | 2015-08-11 | 2015-08-11 | A kind of suction valve with voltage regulation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601996.1U CN204942611U (en) | 2015-08-11 | 2015-08-11 | A kind of suction valve with voltage regulation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942611U true CN204942611U (en) | 2016-01-06 |
Family
ID=55010043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520601996.1U Withdrawn - After Issue CN204942611U (en) | 2015-08-11 | 2015-08-11 | A kind of suction valve with voltage regulation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204942611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065713A (en) * | 2015-08-11 | 2015-11-18 | 华南理工大学 | Intake valve with pressure regulating function |
-
2015
- 2015-08-11 CN CN201520601996.1U patent/CN204942611U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065713A (en) * | 2015-08-11 | 2015-11-18 | 华南理工大学 | Intake valve with pressure regulating function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160106 Effective date of abandoning: 20180619 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160106 Effective date of abandoning: 20180619 |