CN207715858U

CN207715858U - A kind of air bleeding valve

Info

Publication number: CN207715858U
Application number: CN201721921918.5U
Authority: CN
Inventors: 赵伟胜; 赵计春
Original assignee: Taizhou Huanqiu Vacuum Equipment Manufacture Co Ltd
Current assignee: Taizhou Huanqiu Vacuum Equipment Manufacture Co Ltd
Priority date: 2017-12-30
Filing date: 2017-12-30
Publication date: 2018-08-10
Anticipated expiration: 2027-12-30

Abstract

The utility model discloses a kind of air bleeding valves, its key points of the technical solution are that：Including delivery valve seat, valve chamber is equipped in delivery valve seat, the both ends of delivery valve seat are respectively arranged with upper cover and lower cover, lower lid is equipped with is connected to air admission hole with valve chamber, upper lid is equipped with is connected to gas vent with valve chamber, spring base is equipped in valve chamber, seat chamber is equipped in spring base, the madial wall of seat chamber is towards being extended with saddle in the middle part of seat chamber, spring is connected on saddle, the one end of spring far from saddle is connected to upper cover, valve block is equipped between spring base and lower cover, the through-hole being connected to seat chamber is offered on valve block, side wall of the spring base far from spring is the first contact plane, valve block is the second contact plane close to the side wall of spring base, first contact plane face is contacted with the second contact plane；This air bleeding valve can reduce the destructive power between spring base and valve block in such a way that face contacts, and be conducive to the leakproofness for keeping air bleeding valve and one-way exhaust effect.

Description

A kind of air bleeding valve

Technical field

The utility model is related to a kind of valve, more particularly to a kind of air bleeding valve.

Background technology

Air bleeding valve is that one kind is set in pump, is used for the check valve of discharge pump internal gas.

Existing air bleeding valve such as notification number is a kind of Chinese utility model patent of CN2497117Y, and it discloses a kind of rows Air valve, including valve seat, valve body are set to venthole, the air admission hole of valve body upper and lower ends, are equipped with valve chamber, floating ball chamber in valve seat, float Ball is set to floating ball intracavitary, is equipped with mandril in valve chamber, the both ends of mandril are connected to floating ball, valve body.

After above-mentioned this exhaust valve operation, gas is not entered back into air admission hole, floating ball loses a upward work Firmly so that floating ball needs to return to air admission hole under the action of mandril, and the side wall of floating ball can be in contact with the hole wall of air admission hole, and Strong collision is generated, due to the arc-shaped shape of the side wall of floating ball so that when floating ball contacts air admission hole, the hole of floating ball side wall and air admission hole Wall belongs to point contact, so that the side wall of floating ball is generated invagination deformation, at this point, will appear certain sky between floating ball and air admission hole Gap so that the leakproofness of air bleeding valve reduces.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of air bleeding valve, this air bleeding valve Spring base and valve block between destructive power it is small, be conducive to keep air bleeding valve leakproofness and one-way exhaust effect.

The above-mentioned technical purpose of the utility model technical scheme is that：A kind of air bleeding valve, including Delivery valve seat, the delivery valve seat is interior to be equipped with valve chamber, and the both ends of the delivery valve seat are respectively arranged with upper cover and lower cover, under described It covering equipped with air admission hole is connected to valve chamber, the upper lid, which is equipped with, is connected to gas vent with valve chamber, and spring base is equipped in the valve chamber, It is equipped with seat chamber in the spring base, the madial wall of the seat chamber is connected with towards saddle is extended in the middle part of seat chamber on the saddle Spring, the one end of the spring far from saddle are connected to upper cover, valve block are equipped between the spring base and lower cover, on the valve block The through-hole being connected to seat chamber is offered, side wall of the spring base far from spring is the first contact plane, and the valve block leans on short round The side wall of spring abutment is the second contact plane, and first contact plane face is contacted with the second contact plane.

Through the above technical solutions, when air bleeding valve is exhausted, gas enters from the air admission hole on lower lid and dash valve Piece so that valve block moves upwards, and is slid upwards in valve chamber with flexible spring seat, spring contraction, raw between valve block and air admission hole At airspace, gas is entered via through-hole in a chamber and valve chamber, and is reached at upper cover, then the pump housing is discharged via gas vent Outside；After exhaust, valve block is not by a upward power, and spring starts elongation reduction so that the elastic force of spring is made It is moved downward for spring base, during entire movement, the first contact plane and the second contact plane one on spring base The straight process in face contact, compared to the point contact of the arcwall face and air admission hole hole wall of floating ball, face contacts so that spring base exists When elastic force effect is lower and valve block contacts, the destruction to spring base and valve block is advantageously reduced, and then can guarantee spring base and valve Leakproofness between piece, to keep the one-way exhaust of air bleeding valve to act on.

Preferably, the quantity of the gas vent is several, and is uniformly distributed along the circumferencial direction of the upper cover.

Through the above technical solutions, when gas enters in delivery valve seat and reaches at upper cover, due to the number of gas vent It measures more, and is uniformly distributed on lid, the discharge rate for being conducive to accelerate gas has been drained off speed, and then air bleeding valve can be improved Whole exhaust efficiency.

Preferably, seal groove is offered on the side wall of the upper cover, the seal groove is located at the outside of gas vent, and seals The cell wall of slot and the cavity wall of valve chamber are inconsistent.

Through the above technical solutions, when upper cover is installed on delivery valve seat, the seal groove of upper cover can be embedded into valve chamber In cavity wall, so that the cell wall of seal groove and the cavity wall of valve chamber are mutually clamped conflict so that gas is with upper cover close to the side wall phase of valve chamber During contact, it can reduce and be discharged in gap of the gas between upper cover and delivery valve seat, to enhance upper cover and delivery valve seat Between leakproofness, and then the stable connection of upper cover and delivery valve seat can be improved.

Preferably, abutting slot is offered in the cavity wall of the valve chamber, to abutting slot direction on the lateral wall of the spring base It is extended with abutting block, the abutting block abuts slot and mutually abut with described.

Through the above technical solutions, after exhaust, upward active force of the gas to spring base is lost, spring starts Elongation reduction, and elastic force is applied on saddle so that spring base moves downward, and contacts and supports with abutting slot until abutting block It connecing, spring Restore All, spring base stop motion so that the first contact plane no longer interacts with the second contact plane, into And extruding force of the spring base to valve block can be reduced.

Preferably, first gap, cavity wall of the first gap to valve chamber are equipped between the spring base and the valve block It is extended with Second gap.

Through the above technical solutions, when air bleeding valve needs exhaust, gas enters from air admission hole and impacts valve block, and valve block exists It moves upwards in the connection procedure to open air admission hole and valve chamber, portion gas can enter Second gap via first gap Interior, until after the first contact plane and the second contact plane contradict, gas can stay in Second gap；After exhaust, valve Piece needs to return to initial position, is moved downward in addition to spring acts on spring base so that valve block moves downward, go directly abut slot with When abutting block contact, spring base no longer moves downward, and the gas retained in Second gap at this time may act on valve block, Jin Erke Accelerate the speed that valve block returns to lower cover end face.

Preferably, the quantity of the enterprising stomata of the lower cover is three, and is the sweeping kidney slot of hole wall, three air inlets Hole is uniformly distributed in the circumferential direction of lower cover.

Through the above technical solutions, when needing the gas being discharged to enter in delivery valve seat via air admission hole, due to gas vent Shape be forniciform kidney slot, in this case, the setting of three air admission holes occupies lower cover side wall with can doing limits just Area so that air admission hole is expanded to maximum aperture, by equally distributed form, is being conducive to increase to greatest extent pair The inspiratory capacity of pump body, and then the air inflow in air bleeding valve can be improved, accelerate the discharge of gas.

Preferably, it is provided with heelpiece on side wall of the lower cover far from the valve block.

Through the above technical solutions, when air bleeding valve is installed on pump body, can by the way that heelpiece is arranged, with reduce lower cover with Friction between the pump housing, and then the abrasion of lower cover can be reduced.

In conclusion the utility model having the beneficial effect that in contrast to the prior art：

1, it is contacted, can be reduced to bullet by the face between the first contact plane of spring base and the second contact plane of valve block The destruction of spring abutment and valve block, and then can guarantee the leakproofness between spring base and valve block, to keep the one-way exhaust of air bleeding valve Effect；

2, abutted by setting and slot and abut block so that during spring reduction, spring base can timely stop motion, and Stop the interaction between valve block, to reduce the extruding to valve block；

3, the quantity of air admission hole and gas vent is both configured to multiple, and is uniformly distributed, and is conducive to accelerate air-breathing and row The speed of gas, to improve the efficiency of exhaust.

Description of the drawings

Fig. 1 is the sectional view of embodiment, the structure for emphasis displaying embodiment；

Fig. 2 is the vertical view of upper cover in embodiment, the shape for emphasis displaying gas vent and distribution；

Fig. 3 is the vertical view of lower cover in embodiment, the shape for emphasis displaying air admission hole and distribution.

Reference numeral：1, delivery valve seat；11, valve chamber；12, slot is abutted；2, upper cover；21, gas vent；22, seal groove；3, under Lid；31, air admission hole；4, spring base；41, seat chamber；42, saddle；43, the first contact plane；44, block is abutted；5, spring；6, valve Piece；61, through-hole；62, the second contact plane；7, first gap；8, Second gap；9, heelpiece.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing.

Referring to Fig. 1, a kind of air bleeding valve, including delivery valve seat 1, delivery valve seat 1 is interior to offer valve chamber 11 along central shaft.

The upper and lower ends of delivery valve seat 1 are respectively arranged with upper cover 2 and lower cover 3, and upper cover 2 is equipped with the row being connected to valve chamber 11 Stomata 21, lower cover 3 are equipped with the air admission hole 31 being connected to valve chamber 11, spring base 4, the lateral wall of spring base 4 are equipped in valve chamber 11 It pushes against in the cavity wall of valve chamber 11, a chamber 41 is offered along central shaft in spring base 4, towards in seat chamber 41 on the madial wall of seat chamber 41 Portion is extended with the saddle 42 of annular, is fixedly connected with spring 5 on saddle 42, the one end of spring 5 far from saddle 42 is fixedly connected on On the side wall of upper cover 2.

Valve block 6 is equipped between spring base 4 and lower cover 3, the middle part of valve block 6 is provided through the through-hole being connected to seat chamber 41 61, side wall of the spring base 4 far from spring 5 is set as the first contact plane, and valve block 6 is set as the second contact close to the side wall of spring base 4 Plane, the first contact plane face are contacted with the second contact plane；4 side wall of spring base and 6 side wall of valve block are in direct contact to reduce and The probability of deformation is generated, and then can reduce and occur the probability in gap between spring base 4 and valve block 6, is conducive to keep air bleeding valve Leakproofness and one-way exhaust effect.

Annular abutment slot 12 is offered on valve chamber 11 in the cavity wall of valve block 6, to abutting slot on the lateral wall of spring base 4 12 directions are extended with annular abutment block 44, abut block 44 and abut the abutting that contacts with each other between slot 12 so that after exhaust, When 5 driving spring seat 4 of spring moves downward, it can stop in time, to reduce the extruding force to valve block 6.

First gap 7 is equipped between spring base 4 and valve block 6, first gap 7 is extended with second to the cavity wall of 11 both sides of valve chamber The volume in gap 8, Second gap 8 is more than first gap 7, and Second gap 8 can be used for storage section gas, and the gas of storage can be made For valve block 6, accelerates valve block 6 and return to the speed for fitting in 3 side wall of lower cover.

Annular seal groove 22 is offered on the side wall of upper cover 2, seal groove 22 is located at the outside of gas vent 21, and upper cover 2 is placed on When on delivery valve seat 1, the cavity wall of the cell wall and valve chamber 11 of seal groove 22 is inconsistent；Lower cover 3 is provided on the side wall far from valve block 6 Heelpiece 9, when air bleeding valve is installed in the pump housing, heelpiece 9 can reduce the abrasion between the pump housing and air bleeding valve.

Referring to Fig. 2, Fig. 3, the quantity of 2 upper air-vent 21 of upper cover is eight, and gas vent 21 is located at seal groove 22, and Circumferencial direction along upper cover 2 is uniformly distributed, and the quantity of 3 enterprising stomata 31 of lower cover is three, and air admission hole 31 is that hole wall is in bending Kidney slot, and be uniformly distributed along the circumferencial direction of lower cover 3.

The above is only the exemplary embodiment of the utility model, the protection model rather than limited the present invention It encloses, the scope of protection of the utility model is determined by the attached claims.

Claims

1. a kind of air bleeding valve, including delivery valve seat (1), the delivery valve seat (1) is interior to be equipped with valve chamber (11), the delivery valve seat (1) both ends are respectively arranged with upper cover (2) and lower cover (3), and the lower cover (3) is equipped with the air admission hole being connected to valve chamber (11) (31), the upper cover (2) is equipped with the gas vent (21) being connected to valve chamber (11), and spring base (4) is equipped in the valve chamber (11), It is equipped with seat chamber (41) in the spring base (4), the madial wall of the seat chamber (41) is towards being extended with saddle in the middle part of seat chamber (41) (42), spring (5) is connected on the saddle (42), the one end of the spring (5) far from saddle (42) is connected to upper cover (2), It is characterized in that：It is equipped with valve block (6) between the spring base (4) and lower cover (3), is offered and seat chamber (41) on the valve block (6) The through-hole (61) of connection, side wall of the spring base (4) far from spring (5) is the first contact plane (43), and the valve block (6) is leaned on The side wall of short round spring abutment (4) is the second contact plane (62), and the first contact plane (43) face is contacted with the second contact plane (62)。

2. a kind of air bleeding valve according to claim 1, it is characterized in that：The quantity of the gas vent (21) is several, and edge The circumferencial direction of the upper cover (2) is uniformly distributed.

3. a kind of air bleeding valve according to claim 2, it is characterized in that：Seal groove is offered on the side wall of the upper cover (2) (22), the seal groove (22) is located at the outside of gas vent (21), and the cavity wall phase of the cell wall of seal groove (22) and valve chamber (11) It contradicts.

4. a kind of air bleeding valve according to claim 1, it is characterized in that：Abutting slot is offered in the cavity wall of the valve chamber (11) (12), on the lateral wall of the spring base (4) to abut slot (12) direction be extended with abut block (44), the abuttings block (44) and The abutting slot (12) mutually abuts.

5. a kind of air bleeding valve according to claim 1, it is characterized in that：It is set between the spring base (4) and the valve block (6) There are first gap (7), the first gap (7) to be extended with Second gap (8) to the cavity wall of valve chamber (11).

6. a kind of air bleeding valve according to claim 1, it is characterized in that：The quantity of the enterprising stomata of the lower cover (3) (31) is Three, and be the sweeping kidney slot of hole wall, three air admission holes (31) are uniformly distributed in the circumferential direction of lower cover (3).

7. a kind of air bleeding valve according to claim 1, it is characterized in that：Side wall of the lower cover (3) far from the valve block (6) On be provided with heelpiece (9).