CN204986125U - Evacuation valve - Google Patents

Evacuation valve Download PDF

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Publication number
CN204986125U
CN204986125U CN201520722625.9U CN201520722625U CN204986125U CN 204986125 U CN204986125 U CN 204986125U CN 201520722625 U CN201520722625 U CN 201520722625U CN 204986125 U CN204986125 U CN 204986125U
Authority
CN
China
Prior art keywords
valve
hole
iron core
negative pressure
chock plug
Prior art date
Application number
CN201520722625.9U
Other languages
Chinese (zh)
Inventor
严瑞康
洪齐远
单谟君
单军波
竺必峰
吴楠
Original Assignee
宁波佳尔灵气动机械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁波佳尔灵气动机械有限公司 filed Critical 宁波佳尔灵气动机械有限公司
Priority to CN201520722625.9U priority Critical patent/CN204986125U/en
Application granted granted Critical
Publication of CN204986125U publication Critical patent/CN204986125U/en

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Abstract

The utility model discloses an evacuation valve, which comprises the following components: a valve body, disk seat and end cover, a valve body, be formed with the valve pocket between disk seat and the end cover, top -down has set gradually the piston in the valve pocket, valve rod and case, the valve body is provided with is respectively taken out hole and negative pressure hole, the disk seat is provided with air guide hole and control gas pocket respectively, be provided with on the disk seat and be used for controlling the air guide hole and control the pilot unit that the gas pocket switched on or cut off, the valve body still is provided with outside guide's air inlet, the valve body is provided with the guide's passageway that is used for communicateing outside guide's air inlet and air guide hole with the disk seat cooperation, take out the downthehole interference pressure equipment joint of bleeding, the interference pressure equipment has the negative pressure to connect in the negative pressure hole, bleed between joint and the valve body, it is equipped with the sealing washer all to inlay between negative pressure joint and the valve body, be provided with a plurality of threaded attachment hole on the valve body and the side that the negative pressure hole is corresponding. The utility model has the advantages of simple and reasonable structure, application scope is wide, installation and convenient to use, leakproofness are better.

Description

A kind of vacuum pumping valve
Technical field
The utility model relates to vacuum pumping device technical field, particularly a kind of vacuum pumping valve.
Background technique
Spinning in industry, in order to prevent cotton thread or silk thread from adding the phenomenon occurring man-hour disorderly flying, usually needing to vacuumize.Vacuum pumping valve as comparatively common vacuum pumping device, spin apply in manufacturing comparatively extensive.Vacuum pumping valve of a great variety, guide type electromagnetic vacuum pumping valve is one wherein.
Guide type electromagnetic vacuum pumping valve common on the market at present, its structure generally includes valve body, be arranged at valve seat and the end cap at valve body two ends respectively, valve body, valve pocket is formed between valve seat and end cap, piston is disposed with from top to bottom in valve pocket, valve rod and spool, end cap spring is provided with between spool and end cap, valve body is respectively arranged be communicated with valve pocket taken out hole and negative pressure hole, valve interior wall is provided with the cut-off mouth coordinated with seal spool, taken out hole and negative pressure hole lays respectively at the both sides of ending mouth, valve seat is respectively arranged with gas port and the control pore with piston corresponding matching, valve body and valve seat coordinate and are formed with to be communicated with gas port and are taken out the gas channel in hole, valve seat is provided with control gas port and the first guide assembly controlling pore conducting or cut-out.During installation, taken out hole and be threaded io exhaust tube joint, negative pressure hole is threaded io negative tube joint, in the ban during guide assembly energising, gas port and the path controlled between pore are switched on, and are entered in gas port by a gas part of taking out in hole through gas channel, and move through controlling pore driven plunger, impel valve rod to drive spool to depart from cut-off mouth, make to be taken out hole and negative pressure hole conducting, thus reach the effect vacuumized.But, the defect of above-mentioned guide type electromagnetic vacuum pumping valve is: first: owing to adopting internal pilot, namely arrange between valve body with valve seat with by the internal gas passageways taken out hole and be communicated with, and the structure of this employing internal pilot is operationally to relatively high by the pressure requirements taken out in hole, causes the Applicable scope of vacuum pumping valve less; The second, owing to being taken out hole and negative pressure hole all needs to adopt the mode be threaded to be connected with respective tube joint when installing, it is inconvenient to some extent to cause installing and using, and sealing is lower; 3rd, the mounting structure due to valve body self arranges unreasonable, causes vacuum pumping valve to install comparatively inconvenience in use, the convenience that impact uses.
Model utility content
The purpose of this utility model is defect for prior art and deficiency, provide a kind of simple and reasonable, Applicable scope is comparatively wide, install and easy to use, the good vacuum pumping valve of sealing.
For achieving the above object, the utility model is by the following technical solutions:
A kind of vacuum pumping valve described in the utility model, comprise valve body, be arranged at valve seat and the end cap at described valve body two ends respectively, described valve body, valve pocket is formed between described valve seat and described end cap, piston is disposed with from top to bottom in described valve pocket, valve rod and spool, end cap spring is provided with between described spool and described end cap, described valve body be respectively arranged be communicated with described valve pocket taken out hole and negative pressure hole, described valve interior wall is provided with the cut-off mouth coordinated with described seal spool, describedly taken out hole and described negative pressure hole and laid respectively at the both sides of described cut-off mouth, described valve seat is respectively arranged with gas port and the control pore with described piston corresponding matching, described valve seat is provided with the first guide assembly controlling described gas port and the conducting of described control pore or cut-out, described valve body is also provided with external pilot suction port, described valve body and described valve seat are equipped with the leader channel for being communicated with described external pilot suction port and described gas port, describedly taken out interference in hole and be pressed with air extraction connector, in described negative pressure hole, interference is pressed with negative pressure joint, between described air extraction connector and described valve body, all seal ring is embedded with between described negative pressure joint and described valve body, the side corresponding with described negative pressure hole of described valve body is provided with some threaded mounting holes.
Further, described first guide assembly comprises sleeve pipe, dynamic iron core, static iron core and coil block, the bottom of described sleeve pipe is fixedly connected with described valve seat by pressing plate, be movably set with described dynamic iron core in described sleeve pipe, be fixedly installed described static iron core, be provided with dynamic iron core spring between described dynamic iron core and described sleeve pipe, described coil block is set around on the outer wall of described sleeve pipe; Be provided with boss in described valve seat, described boss is provided with described gas port vertically, and the bottom of described dynamic iron core is provided with the first chock plug be sealed and matched with described boss; Described static iron core is provided with exhaust passage vertically, and the top of described dynamic iron core is provided with the second chock plug coordinated with described passageway seals.
Further, described dynamic iron core is provided with shaft through-hole vertically, described first chock plug and described second chock plug are all arranged in described shaft through-hole, spring pad is movably equipped with between described first chock plug and described second chock plug, to being provided with the first spring between described spring pad and described first chock plug, to being provided with the second spring between described spring pad and described second chock plug.
Further, the sidewall of described valve seat is horizontally arranged with the manual rod for iron core action dynamic described in manual drives.
Further, described end cap is provided with the guiding groove matched with described valve rod.
Further, the top perisporium of described valve rod is embedded with side by side two flat circles coordinated with described valve seal respectively, between two described flat circles, is equipped with lubricating grease.
The beneficial effects of the utility model are: the utility model by arranging external pilot suction port on valve body, and the leader channel be equipped with between valve body with valve seat for being communicated with external pilot suction port and gas port, during work, external pilot suction port is connected with control source of the gas separately, and then independently air feed is carried out to gas port, with adopt compared with internal pilot structure in prior art, without the need to considering by the pressure requirements taken out in hole during utility model works, Applicable scope is wider; By press-fiting air extraction connector being taken out interference in hole, in negative pressure hole, interference press-fits negative pressure joint, both ensure that the reliability of the utility model linkage structure, and without the need to the pipe joint that is threaded in addition during work, make use more convenient, effectively reduce the fitting operation of user, in addition, the utility model arranges seal ring respectively between air extraction connector and valve body, between negative pressure joint and valve body, also effectively ensure that sealability; By arranging some threaded mounting holes on valve body, the utility model can directly be fixed on the table by threaded mounting hole when installing and using by user, thus makes to install and use more for convenience, improves the convenience of use.The utility model vibrational power flow advantages of simple.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the right elevation of Fig. 1;
Fig. 3 is the left view of Fig. 1.
In Fig. 1 to Fig. 3:
1, valve body; 11, hole is taken out; 111, air extraction connector; 12, negative pressure hole; 121, negative pressure joint; 13, mouth is ended; 14, external pilot suction port; 15, leader channel; 16, seal ring; 17, threaded mounting hole; 2, valve seat; 21, gas port; 22, pore is controlled; 23, boss; 24, manual rod; 3, end cap; 31, end cap spring; 32, guiding groove; 4, valve pocket; 5, piston; 6, valve rod; 61, flat circle; 7, spool; 81, sleeve pipe; 82, dynamic iron core; 821, the first chock plug; 822, the second chock plug; 823, shaft through-hole; 824, spring pad; 825, the first spring; 826, the second spring; 83, static iron core; 831, exhaust passage; 84, coil block; 85, pressing plate; 86, dynamic iron core spring.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of vacuum pumping valve as shown in Figure 1 to Figure 3, comprise valve body 1, be arranged at valve seat 2 and the end cap 3 at valve body 1 two ends respectively, valve body 1, valve pocket 4 is formed between valve seat 2 and end cap 3, piston 5 is disposed with from top to bottom in valve pocket 4, valve rod 6 and spool 7, end cap spring 31 is provided with between spool 7 and end cap 3, valve body 1 be respectively arranged be communicated with valve pocket 4 taken out hole 11 and negative pressure hole 12, valve body 1 inwall is provided with the cut-off mouth 13 be sealed and matched with spool 7, taken out hole 11 and laid respectively at the both sides of ending mouth 13 with negative pressure hole 12, valve seat 2 is respectively arranged with gas port 21 and the control pore 22 with piston 5 corresponding matching, valve seat 2 is provided with control gas port 21 and the first guide assembly controlling pore 22 conducting or cut-out.
First guide assembly comprises sleeve pipe 81, dynamic iron core 82, static iron core 83 and coil block 84, the bottom of sleeve pipe 81 is fixedly connected with valve seat 2 by pressing plate 85, be movably set with dynamic iron core 82 in sleeve pipe 81, be fixedly installed static iron core 83, move and be provided with dynamic iron core spring 86 between iron core 82 and sleeve pipe 81, coil block 84 is set around on the outer wall of sleeve pipe 81; Be provided with boss 23 in valve seat 2, boss 23 is provided with gas port 21 vertically, and the bottom of dynamic iron core 82 is provided with the first chock plug 821 be sealed and matched with boss 23; Static iron core 83 is provided with exhaust passage 831 vertically, and the top of dynamic iron core 82 is provided with the second chock plug 822 be sealed and matched with exhaust passage 831.
Preferably, dynamic iron core 82 is provided with shaft through-hole 823 vertically, first chock plug 821 and the second chock plug 822 are all arranged in shaft through-hole 823, spring pad 824 is movably equipped with between first chock plug 821 and the second chock plug 822, to being provided with the first spring 825 between spring pad 824 and the first chock plug 821, to being provided with the second spring 826 between spring pad 824 and the second chock plug 822, by arranging said structure, make the first chock plug 821 and the second chock plug 822 operationally can be in the sealing state of relative motion, thus effectively protective action is served to the first chock plug 821 and the second chock plug 822, extend working life.
Valve body 1 is also provided with external pilot suction port 14, valve body 1 and valve seat 2 are equipped with the leader channel 15 for being communicated with external pilot suction port 14 and gas port 21, during work, external pilot suction port 14 is connected with control source of the gas separately, and then independently air feed is carried out to gas port 21, with adopt compared with internal pilot structure in prior art, without the need to considering by the pressure requirements taken out in hole 11 during utility model works, Applicable scope is wider.Taken out interference in hole 11 and be pressed with air extraction connector 111, in negative pressure hole 12, interference is pressed with negative pressure joint 121, both ensure that the reliability of the utility model linkage structure, and without the need to the pipe joint that is threaded in addition during work, make use more convenient, effectively reduce the fitting operation of user; All be embedded with seal ring 16 between air extraction connector 111 and valve body 1, between negative pressure joint 121 and valve body 1, also effectively ensure that sealability.The side corresponding with negative pressure hole 12 of valve body 1 is provided with some threaded mounting holes 17, the utility model can directly be fixed on the table by threaded mounting hole 17 when installing and using by user, thus make to install and use more for convenience, improve the convenience of use.
During work, negative pressure joint 121 is connected with air pump, air extraction connector 111 aims at the active chamber needing to vacuumize, external pilot suction port 14 is connected with control source of the gas, when coil block 84 is not energized, under the effect of dynamic iron core spring 86, first chock plug 821 and boss 23 close contact in valve seat 2 of dynamic iron core 82 lower end, now gas port 21 is by shutoff, gas in external pilot suction port 14 cannot enter and control in pore 22, spool 7 seals with cut-off mouth 13 and contacts under the effect of end cap spring 31, by the path taken out between hole 11 and negative pressure hole 12 by shutoff, now the utility model does not vacuumize, when coil block 84 is energized, dynamic iron core 82 under magnetic force, depart from boss 23 and with static iron core 83 close contact, now gas port 21 conducting, gas in external pilot suction port 14 enters in valve pocket 4 through leader channel 15, gas port 21 and control pore 22 successively, make piston 5 under gas pressure, promote valve rod 6 to move down, impel spool 7 to be synchronized with the movement with valve rod 6 and depart from cut-off mouth 13, be switched on by the path taken out between hole 11 and negative pressure hole 12, now the utility model carries out vacuum pumping, when coil block 84 again power-off time, dynamic iron core 82 again seals with boss 23 and contacts under the effect of dynamic iron core spring 86, gas port 21 and the path controlled between pore 22 are cut off, residual gas between valve seat 2 and piston 5 is successively through controlling pore 22 and exhaust passage 831 is expelled to air, spool 7 pushes against piston 5 travelling backwards by valve rod 6 under the effect of end cap spring 31, until spool 7 again seals contact with cut-off mouth 13, by the path taken out between hole 11 and negative pressure hole 12 again by shutoff.
Inspection and maintenance is carried out for the ease of the utility model, the sidewall of valve seat 2 is horizontally arranged with the manual rod 24 moving iron core 82 action for manual drives, when touching manual rod 24, the inner of manual rod 24 is impelled on dynamic iron core 82 and is moved, and then makes gas port 21 and control pore 22 conducting.
End cap 3 being provided with the guiding groove 32 matched with valve rod 6, by arranging guiding groove 32, effectively leading role being served to the motion of valve rod 6.The top perisporium of valve rod 6 is embedded with side by side two flat circles 61 be sealed and matched with valve body 1 respectively, lubricating grease is equipped with between two flat circles 61, by arranging said structure, further increase sealability of the present utility model, and lubricating grease also effectively serves lubrication, make sensitivity during utility model works higher.
The above is only better embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in the utility model patent claim.

Claims (6)

1. a vacuum pumping valve, comprise valve body, be arranged at valve seat and the end cap at described valve body two ends respectively, described valve body, valve pocket is formed between described valve seat and described end cap, piston is disposed with from top to bottom in described valve pocket, valve rod and spool, end cap spring is provided with between described spool and described end cap, described valve body be respectively arranged be communicated with described valve pocket taken out hole and negative pressure hole, described valve interior wall is provided with the cut-off mouth coordinated with described seal spool, describedly taken out hole and described negative pressure hole and laid respectively at the both sides of described cut-off mouth, described valve seat is respectively arranged with gas port and the control pore with described piston corresponding matching, described valve seat is provided with the first guide assembly controlling described gas port and the conducting of described control pore or cut-out, it is characterized in that: described valve body is also provided with external pilot suction port, described valve body and described valve seat are equipped with the leader channel for being communicated with described external pilot suction port and described gas port, describedly taken out interference in hole and be pressed with air extraction connector, in described negative pressure hole, interference is pressed with negative pressure joint, between described air extraction connector and described valve body, all seal ring is embedded with between described negative pressure joint and described valve body, the side corresponding with described negative pressure hole of described valve body is provided with some threaded mounting holes.
2. vacuum pumping valve according to claim 1, it is characterized in that: described first guide assembly comprises sleeve pipe, dynamic iron core, static iron core and coil block, the bottom of described sleeve pipe is fixedly connected with described valve seat by pressing plate, be movably set with described dynamic iron core in described sleeve pipe, be fixedly installed described static iron core, be provided with dynamic iron core spring between described dynamic iron core and described sleeve pipe, described coil block is set around on the outer wall of described sleeve pipe; Be provided with boss in described valve seat, described boss is provided with described gas port vertically, and the bottom of described dynamic iron core is provided with the first chock plug be sealed and matched with described boss; Described static iron core is provided with exhaust passage vertically, and the top of described dynamic iron core is provided with the second chock plug coordinated with described passageway seals.
3. vacuum pumping valve according to claim 2, it is characterized in that: described dynamic iron core is provided with shaft through-hole vertically, described first chock plug and described second chock plug are all arranged in described shaft through-hole, spring pad is movably equipped with between described first chock plug and described second chock plug, to being provided with the first spring between described spring pad and described first chock plug, to being provided with the second spring between described spring pad and described second chock plug.
4. vacuum pumping valve according to claim 2, is characterized in that: the sidewall of described valve seat is horizontally arranged with the manual rod for iron core action dynamic described in manual drives.
5. vacuum pumping valve according to claim 1, is characterized in that: described end cap is provided with the guiding groove matched with described valve rod.
6. vacuum pumping valve according to claim 1, is characterized in that: the top perisporium of described valve rod is embedded with side by side two flat circles coordinated with described valve seal respectively, is equipped with lubricating grease between two described flat circles.
CN201520722625.9U 2015-09-17 2015-09-17 Evacuation valve CN204986125U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520722625.9U CN204986125U (en) 2015-09-17 2015-09-17 Evacuation valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520722625.9U CN204986125U (en) 2015-09-17 2015-09-17 Evacuation valve

Publications (1)

Publication Number Publication Date
CN204986125U true CN204986125U (en) 2016-01-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520722625.9U CN204986125U (en) 2015-09-17 2015-09-17 Evacuation valve

Country Status (1)

Country Link
CN (1) CN204986125U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106015629A (en) * 2016-06-24 2016-10-12 宁波佳尔灵气动机械有限公司 Independent flow channel type pneumatic gate valve
CN107548735A (en) * 2017-08-28 2018-01-09 重庆洁邦电器有限公司 The vacuum grain storage device of end cap integrated air flow passage
CN108871692A (en) * 2018-06-26 2018-11-23 爱发科东方真空(成都)有限公司 A kind of lithium battery automatic detection production line and its detection method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106015629A (en) * 2016-06-24 2016-10-12 宁波佳尔灵气动机械有限公司 Independent flow channel type pneumatic gate valve
CN107548735A (en) * 2017-08-28 2018-01-09 重庆洁邦电器有限公司 The vacuum grain storage device of end cap integrated air flow passage
CN108871692A (en) * 2018-06-26 2018-11-23 爱发科东方真空(成都)有限公司 A kind of lithium battery automatic detection production line and its detection method

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