CN206988065U - Air compressor minimum pressure valve - Google Patents

Abstract

Pressure valve field is the utility model is related to, specifically discloses a kind of air compressor minimum pressure valve, including valve body, valve element, spring capping and spring；The bottom of valve body is provided with the first passage of left and right trend, and first passage is separated by dividing plate, and dividing plate is provided with through hole, and the top of valve body is provided with the second channel moved towards up and down；Valve element is arranged in second channel and lower end is engaged with through hole, and valve element inserts hole provided with the first spring；Spring capping is fixed on the upper end of valve body, and spring capping inserts hole and bleeder port provided with second spring；Spring is butted on that the first spring inserts hole and second spring is inserted in hole.The utility model can keep stable system pressure in system operation, it is ensured that the normal circulation flowing of coolant, ensure the runnability and effect of machine.Entirely valve is vertebration, and flow is bigger, the good sealing effect of valve element part, the service life length of valve.

Description

Air compressor minimum pressure valve

Technical field

It the utility model is related to pressure valve field, and in particular to a kind of air compressor minimum pressure valve.

Background technology

On most of air compressors, minimum pressure valve has two effects：1st, when machine is within loading moment, machine Part all will be added on separator from preceding with separating rear caused big pressure difference, causes the injury to separator core, thus is set Minimum pressure valve is to play cushioning effect；2nd, machine oil lubrication is carried out by the pressure differential of machine in itself, without extra oil pump Auxiliary, when machine is in Light Condition, still needs to certain pressure and maintain oil circulation, so air intake valve is relatively closed, and minimum pressure Power valve prevents pressure leakage, so ensures lubrication oil circulation.Existing minimum pressure valve uses air admission hole and venthole more, and it is pressed The flow of contracting air is smaller, and internal structure is more complicated, more at rapid wear, and leakage point is more, it is necessary to redesign.

Utility model content

The utility model is in view of the above-mentioned problems, provide a kind of new air compressor minimum pressure valve.

The purpose of this utility model can be realized by following technical proposals：Air compressor minimum pressure valve, bag Include valve body, valve element, spring capping and spring；

The bottom of the valve body is provided with the first passage of left and right trend, and one end of the first passage is air inlet, and first is logical The other end in road is gas outlet, and the middle part of first passage is provided with a dividing plate and first passage is divided into two parts, and dividing plate connects with valve body It is integrated, dividing plate is the three stage structure being connected in sequence by the first rake, horizontal part and the second rake, wherein, the The incline direction of one rake and the second rake is identical with angle, and being offered on horizontal part makes two parts of first passage be connected Logical through hole, the top of through hole is part where the gas outlet of first passage, and the upper end of through hole is tapered, the top of the valve body Provided with the second channel moved towards up and down, the upper end of the second channel passes to valve body upper end face, the lower end of second channel and first Part is connected where the gas outlet of passage；

The valve element is arranged in second channel, and valve element is in cylindrical sleeve, the diameter of valve element and the diameter phase of second channel Matching, the lower surface edge contra bevel of valve element, the inclined-plane are provided with first annular groove, the first sealing are provided with first annular groove Circle, the lower end inclined-plane of valve element is engaged with the upper end of the through hole, and circumferentially arranged with the second annular groove on the side of valve element, this Second ring groove is set close to the upper surface of valve element, is provided with the second sealing ring in the second annular groove, the upper surface place placed in the middle of valve element opens Hole is inserted provided with the first spring；

The spring capping is connected through a screw thread the upper end for being fixed on valve body, between spring capping and the upper end face of valve body Provided with pad, the lower surface place placed in the middle of spring capping, which offers, to be inserted the corresponding second spring in hole with the first spring and inserts hole, Second spring is inserted in hole to offer and penetrated along the axis of spring capping to the bleeder port of the upper surface of spring capping；

The spring is vertically arranged and both ends are butted on that the first spring inserts hole and second spring is inserted in hole respectively.

The utility model has the advantage of：When the internal system operating pressure of air compressor reaches authorized pressure, by Pressure increases at air inlet so that and valve element is moved up in airflow function by a power straight up along second channel, Spring is compressed, and the inside of first passage is connected, and air-flow is outwards vented by gas outlet, is vented through-flow area increase, Exhaust velocity is improved, so as to reduce machine internal system pressure.When air inlet pore pressure force declines, elastic force of the valve element in spring Effect moves down along second channel, is vented through-flow area and reduces, reduces exhaust velocity, is inside machine so as to improve System pressure.It is high and low regardless of outlet pore pressure force during whole service, stabilization can be kept inside machine system all the time System pressure, it is ensured that the normal circulation flowing of coolant, ensure the runnability and effect of machine.On the lower end inclined-plane of valve element First sealing ring not only acts as sealing function, also reduces the friction between the through hole on inclined-plane and dividing plate, plays cushioning effect, So as to extend the service life of whole core, ensure sealing property.Second sealing ring of valve element side play valve element after unlatching with Sealing function between second channel side wall, to prevent compressed air leakage.Bleeder port is provided with spring capping, to ensure that valve element exists Can freely it be exhaled during normal movement, air-breathing, in order to avoid influence the working effect of valve element.Vertebration, the inlet channel of whole valve Separated jointly by dividing plate and valve element with outlet passageway, flow is bigger, the good sealing effect of valve element part, the service life of valve It is long.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Marked in figure as follows：

1 valve body, 2 first passages, 21 air inlets, 22 gas outlets, 3 dividing plates, 31 first rakes, 32 horizontal parts, 33 second Rake, 34 through holes, 4 second channels, 5 valve elements, 6 first sealing rings, 7 second sealing rings, 8 spring cappings, 81 bleeder ports, 9 pads Piece, 10 springs.

Embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, becomes apparent from those skilled in the art Ground understands how to put into practice the utility model.Although describing the utility model with reference to its preferred embodiment, these Embodiment simply illustrates, rather than limitation the scope of the utility model.

Referring to Fig. 1, air compressor minimum pressure valve, including valve body 1, valve element 5, spring capping 8 and spring 10.

The bottom of the valve body 1 is provided with the first passage 2 of left and right trend, and one end of the first passage 2 is air inlet 21, the The other end of one passage 2 is gas outlet 22, and first passage 2 is divided into two parts by the middle part of first passage 2 provided with a dividing plate 3, every Plate 3 is connected as a single entity with valve body 1, and dividing plate 3 is connected in sequence by the first rake 31, the rake 33 of horizontal part 32 and second Three stage structure, wherein, the first rake 31 is identical with angle with the incline direction of the second rake 33, is opened up on horizontal part 32 There is the through hole 34 that the two parts for making first passage 2 are connected, the upper end of through hole 34 is tapered, and the top of through hole 34 is first passage The 2 place part of gas outlet 22, the three stage structure of dividing plate 3 cause the trend of compressed air to be horizontally entered into from air inlet 21, Then straight up by through hole 34, finally again from the horizontal discharge of venthole 22.The top of the valve body 1 is provided with what is moved towards up and down Second channel 4, the upper end of the second channel 4 pass to the upper end face of valve body 1, the lower end of second channel 4 and the outlet of first passage 2 Part is connected where mouth 22.

The valve element 5 is arranged in second channel 4, and valve element 5 is in cylindrical sleeve, and the diameter of valve element 5 is straight with second channel 4 Footpath matches, the lower surface edge contra bevel of valve element 5, and the inclined-plane is provided with first annular groove, and first is provided with first annular groove Sealing ring 6, the lower end inclined-plane of valve element 5 is engaged with the upper end of the through hole 34, circumferentially arranged with the second ring on the side of valve element 5 Shape groove, second annular groove are set close to the upper surface of valve element 5, are provided with the second sealing ring 7 in the second annular groove, valve element 5 it is upper End face place placed in the middle offers the first spring and inserts hole.

The spring capping 8 is connected through a screw thread the upper end for being fixed on valve body 1, the upper end face of spring capping 8 and valve body 1 Between be provided with pad 9, the lower surface place placed in the middle of spring capping 8, which offers, to be inserted the corresponding second spring in hole with the first spring and puts Enter hole, second spring inserts in hole the bleeder port for offering the upper surface penetrated along the axis of spring capping 8 to spring capping 8 81。

The spring 10 is vertically arranged and both ends are butted on that the first spring inserts hole and second spring is inserted in hole respectively.

During specific works, when the internal system operating pressure of air compressor reaches authorized pressure, due to air inlet 21 Locate pressure increase so that valve element 5 is moved up, spring 10 in airflow function by a power straight up along second channel 4 Compressed, the inside of first passage 2 is connected, and air-flow is outwards vented by gas outlet 22, is vented through-flow area increase, carries High exhaust velocity, so as to reduce machine internal system pressure.When air inlet pore pressure force declines, bullet of the valve element 5 in spring 10 Power effect moves down along second channel 4, is vented through-flow area and reduces, exhaust velocity is reduced, so as to improve in machine Portion's system pressure.It is high and low regardless of outlet pore pressure force during whole service, it can be kept all the time inside machine system steady Fixed system pressure, it is ensured that the normal circulation flowing of coolant, ensure the runnability and effect of machine.The lower end of valve element 5 is oblique The first sealing ring 6 on face not only acts as sealing function, also reduces the friction between the through hole 34 on inclined-plane and dividing plate 3, rises To cushioning effect, so as to extend the service life of whole core, ensure sealing property.Second sealing ring 7 of the side of valve element 5 plays valve Sealing function of the core 5 after unlatching between the side wall of second channel 4, to prevent compressed air leakage.It is provided with spring capping 8 discouraged Hole 81, with ensure valve element 5 can freely be exhaled in normal movement, air-breathing, in order to avoid influence valve element 5 working effect.

It should be pointed out that for the utility model through absolutely proving, can also have a variety of conversion and the implementation of remodeling Scheme, it is not limited to the specific embodiment of above-mentioned embodiment.Above-described embodiment as just explanation of the present utility model, and It is not to limitation of the present utility model.In a word, the scope of protection of the utility model should include those for ordinary skill Obviously convert or substitute and retrofit for personnel, and be determined by the appended claims.

Claims (1)

1. air compressor minimum pressure valve, it is characterised in that including valve body, valve element, spring capping and spring；

The bottom of the valve body is provided with the first passage of left and right trend, and one end of the first passage is air inlet, first passage The other end is gas outlet, and the middle part of first passage is provided with a dividing plate and first passage is divided into two parts, and dividing plate is linked as one with valve body Body, dividing plate are the three stage structures being connected in sequence by the first rake, horizontal part and the second rake, wherein, first inclines Inclined portion is identical with angle with the incline direction of the second rake, and being offered on horizontal part makes what two parts of first passage were connected Through hole, the top of through hole is part where the gas outlet of first passage, and the upper end of through hole is tapered, and the top of the valve body is provided with The second channel moved towards up and down, the upper end of the second channel pass to the upper end face of valve body, and the lower end of second channel is logical with first Part is connected where the gas outlet in road；

The valve element is arranged in second channel, and valve element is in cylindrical sleeve, and the diameter of valve element and the diameter of second channel match, The lower surface edge contra bevel of valve element, the inclined-plane are provided with first annular groove, the first sealing ring, valve element are provided with first annular groove Lower end inclined-plane be engaged with the upper end of the through hole, circumferentially arranged with the second annular groove on the side of valve element, second annular Groove is set close to the upper surface of valve element, is provided with the second sealing ring in the second annular groove, and the upper surface place placed in the middle of valve element offers the One spring inserts hole；

The spring capping is connected through a screw thread the upper end for being fixed on valve body, is provided between spring capping and the upper end face of valve body Pad, the lower surface place placed in the middle of spring capping, which offers, to be inserted the corresponding second spring in hole with the first spring and inserts hole, and second Spring is inserted in hole to offer and penetrated along the axis of spring capping to the bleeder port of the upper surface of spring capping；

The spring is vertically arranged and both ends are butted on that the first spring inserts hole and second spring is inserted in hole respectively.