CN103016749A - Automatic water drainage valve and air brake system - Google Patents
Automatic water drainage valve and air brake system Download PDFInfo
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- CN103016749A CN103016749A CN2012105341747A CN201210534174A CN103016749A CN 103016749 A CN103016749 A CN 103016749A CN 2012105341747 A CN2012105341747 A CN 2012105341747A CN 201210534174 A CN201210534174 A CN 201210534174A CN 103016749 A CN103016749 A CN 103016749A
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Abstract
The invention provides an automatic water drainage valve and an air brake system. The automatic water drainage valve comprises a valve body, wherein a water inlet channel and a water drainage channel are formed in the valve body; a valve component which automatically controls the switching-on and switching-off of the water inlet channel and the water drainage channel is arranged between the water inlet channel and the water drainage channel; a manual water drainage channel which is communicated with the water inlet channel is also formed in the valve body; and a manual control switch which controls the switching-on and switching-off of the water inlet channel and controls the switching-on and switching-off of the water inlet channel and the manual water drainage channel is arranged on the valve body. The automatic water drainage valve provided by the invention has the advantages that on one hand, automatic water drainage is realized by controlling the switching-on and switching-off of the water drainage channel through the vertical motion of the valve component; and on the other hand, manual water drainage is realized by controlling the switching-on and switching-off of the water inlet channel and the water drainage channel through the manual control switch.
Description
Technical field
The present invention relates to the valve technology, relate in particular to a kind of automatic drain valve and air braking system for the locomotive air braking.
Background technique
Internal combustion locomotive is braked by air braking system, can brake accurately to guarantee locomotive.Wherein, air braking system comprises the parts such as air compressor, air drier and total reservoir.Air compressor is got pressurized air, contains water in the pressurized air that air compressor is got, and by air drier air is carried out drying, and to remove moisture, dried air resupplies total reservoir.When air drier can't work, have ponding in total reservoir, air that can't normal supply braking line drying.
When the air drier fault, dry in order to ensure the air in the braking line, the ponding in total reservoir need to be discharged.In the prior art, as shown in Figure 1, generally at total reservoir 1 drain valve is housed, comprise be connected with total reservoir 1 often open cock 11 and normally closed cock 12, often open cock 11 and also be connected with automatic drain valve 13.When the air drier fault, can be by often opening cock 11 and automatic drain valve 13 can discharge water, and when automatic drain valve 13 breaks down, can often open cock 11 and close by controlling, avoid leaking out, can by the normally closed cock 12 of control, manually the ponding in total reservoir 1 be discharged simultaneously.
Because the installing space of total reservoir bottom is limited, in the prior art by automatic drain valve, often to open the drain valve volume that cock and normally closed cock form larger, installs to take up room greatly, can bring impact to the installation of miscellaneous part in the locomotive, increases the difficulty of installation.
Summary of the invention
The invention provides a kind of automatic drain valve and air braking system, in order to solve problems of the prior art.
The invention provides a kind of automatic drain valve, comprise valve body, be provided with intake tunnel and drainage channel on the described valve body;
Between described intake tunnel and the drainage channel, be provided with the valve member of the described intake tunnel of automatic control and drainage channel break-make;
Also be provided with the manual drainage passage that is communicated with described intake tunnel on the described valve body, and also be provided with the described intake tunnel break-make of control on the described valve body, and the hand control switch of controlling described intake tunnel and manual drainage passage break-make.
Aforesaid automatic drain valve, preferably, the L-type passage of described intake tunnel for being made of first passage and second channel is provided with described valve member between wherein said first passage and the described first row water channel;
Offer the switch passage on the described valve body, described switch passage and the coaxial setting of described first passage are provided with described hand control switch in the described switch passage.
Aforesaid automatic drain valve, preferably, described manual drainage passage is communicated with described intake tunnel by described switch passage, and the opening at described manual drainage passage and described switch channel connection place is positioned at the position away from described switch passage and second channel jointing place;
Described hand control switch comprises running shaft, be provided with the first shutoff baffle plate of the described first passage of shutoff on the described running shaft, and the second shutoff baffle plate of the described switch passage of shutoff, the distance between described the first shutoff baffle plate and the second shutoff baffle plate is greater than the aperture of described second channel.
Aforesaid automatic drain valve, preferably, described switch passage is provided with mounting plate at the opening of described valve body;
Offer through hole on the described mounting plate, described running shaft is located in the described through hole.
Aforesaid automatic drain valve, preferably, the end that described running shaft stretches out described valve body is provided with handle.
Aforesaid automatic drain valve, preferably, described valve inner is provided with the cavity of accommodating described valve member, and described intake tunnel and drainage channel are communicated with described cavity respectively;
Described valve member comprises piston assembly and switch lining, wherein:
Described piston assembly comprises piston and plugging plate, connect by piston rod between described piston and the plugging plate, be provided with spring between the projection on described piston and the described cavity inner wall, described projection is between described piston and described plugging plate, and described piston is positioned at described cavity away from an end of described drainage channel;
Described switch lining is installed in an end of close described drainage channel in the described cavity, and the middle part of described switch lining offers the water flowing through hole, described piston rod passes described water flowing through hole, described plugging plate is between described switch lining and described drainage channel, and the area of described plugging plate is greater than the area of described water flowing through hole;
Also be provided with air intake passage on the described valve body, the piston cavity that forms between described air intake passage and described piston and the described cavity is communicated with, described piston cavity is positioned at the end away from described drainage channel, and the aperture of described air intake passage is less than the aperture of described drainage channel.
Aforesaid automatic drain valve preferably, also is provided with stationary bushing between described piston and the described plugging plate, and described stationary bushing is installed in the described cavity, and is provided with flexible sheet between described piston and the described stationary bushing.
The present invention also provides a kind of air braking system, comprising: total reservoir and automatic drain valve, be provided with the intake grill that is connected with air compressor on described total reservoir, and the exhaust outlet that is connected with braking line;
On described total reservoir, also be provided with the drain opening that is connected with described automatic drain valve, the intake tunnel on described drain opening and the described automatic drain valve connects;
The automatic drain valve of described automatic drain valve for adopting the invention described above to provide.
Automatic drain valve provided by the invention and air braking system, under the ponding effect that enters intake tunnel, valve member can be opened the path between intake tunnel and the drainage channel automatically, carries out draining; And when the automatic drainage function of valve member lost efficacy, then can pass through hand control switch, close the path between intake tunnel and the drainage channel, can open simultaneously the path between intake tunnel and the manual drainage passage, carry out draining, and when not draining, also can disconnect path between intake tunnel and the manual drainage passage by hand switch, avoid gas leakage, like this, just can realize the automatic discharge of ponding and manually discharge on automatic drain valve of the present invention, than prior art, automatic drain valve provided by the invention is realized manual drainage owing to be provided with hand control switch, volume is little, and need to not set up other devices below total reservoir when being installed to total reservoir, the installing space that takies is little, saves cost.
Description of drawings
Figure 1 shows that the structural representation of air braking system of the prior art;
The structural representation of the automatic drain valve that Fig. 2 provides for the embodiment of the invention;
Fig. 3 is the structural representation of the hand control switch shown in Fig. 2;
Action schematic representation when Fig. 4, Fig. 5, Fig. 6 are respectively automatic drain valve manual drainage shown in Figure 2;
The structural representation of the air braking system that Fig. 7 provides for the embodiment of the invention.
Description of reference numerals:
1,9: total reservoir; 11: often open cock; 12: normally closed cock;
13: automatic drain valve; 2: valve body; 21: the switch passage;
23: mounting plate; 3: intake tunnel; 31: first passage;
32: second channel; 4: hand control switch; 41: running shaft;
42: the first shutoff baffle plates; 43: the second shutoff baffle plates; 44: handle;
5: drainage channel; 6: valve member; 61: piston;
62: plugging plate; 63: piston rod; 64: stationary bushing;
65: flexible sheet; 66: spring; 67: the switch lining;
7: the manual drainage passage; 8: air intake passage; 85: piston cavity;
91: intake grill; 92: exhaust outlet; 93: drain opening;
10: automatic drain valve.
Embodiment
The structural representation of the automatic drain valve that Fig. 2 provides for the embodiment of the invention.As shown in Figure 2, the automatic drain valve that present embodiment provides mainly comprises: valve body 2 is provided with intake tunnel 3 and drainage channel 5 on the valve body 2; Between intake tunnel 3 and the drainage channel 5, be provided with the valve member 6 of automatic control intake tunnel 3 and drainage channel 5 break-makes; Also be provided with the manual drainage passage 7 that is communicated with intake tunnel 3 on the valve body 2, and also be provided with control intake tunnel 3 break-makes on the valve body 2, and the hand control switch 4 of control intake tunnel 3 and manual drainage passage 7 break-makes.
In the present embodiment, intake tunnel 3 is used for being connected with total reservoir, enter automatic drain valve from total reservoir ponding and air out by intake tunnel 3, act on the valve member on 6, ponding can produce downward pressure to valve member 6, when described pressure greater than valve member 6 bear pressure the time, valve member 6 will be controlled drainage channel 5 and open, ponding spills out from drainage channel 5, after ponding is discharged, described pressure reduces, and valve member 6 is closed drainage channel 5 again, has realized Auto-drainage.When losing efficacy in valve member 6 faults, normal Auto-drainage, by rotary manual control switch 4 to suitable position, intake tunnel 3 is closed, avoid gas leakage, simultaneously, also can pass through rotary manual control switch 4, manual drainage passage 7 is opened, by manual drainage passage 7 water is discharged, realize manual drainage.
The automatic drain valve that the embodiment of the invention provides, under the ponding effect that enters intake tunnel, valve member can be opened the path between intake tunnel and the drainage channel automatically, carries out draining; And when the automatic drainage function of valve member lost efficacy, then can pass through hand control switch, close the path between intake tunnel and the drainage channel, can open simultaneously the path between intake tunnel and the manual drainage passage, carry out draining, and when not draining, also can disconnect path between intake tunnel and the manual drainage passage by hand switch, avoid gas leakage, like this, just can realize the automatic discharge of ponding and manually discharge on automatic drain valve of the present invention, than prior art, automatic drain valve provided by the invention is realized manual drainage owing to be provided with hand control switch, volume is little, and need to not set up other devices below total reservoir when being installed to total reservoir, the installing space that takies is little, saves cost.
In the present embodiment, preferably, intake tunnel 3 can be the L-type passage that is made of first passage 31 and second channel 32, and second channel 32 is used for and the connection that links to each other with drain opening on total reservoir, ponding in total reservoir enters automatic valve internal drainage valve from second channel 32, flow to first passage 31 again.Wherein, be provided with above-mentioned valve member 6 between first passage 31 and the drainage channel 5.Valve body 2 inside are provided with the cavity of accommodating valve member 6, and intake tunnel 3 and drainage channel 5 are communicated with cavity respectively.
In the present embodiment, as shown in Figure 2, valve member 6 specifically can comprise piston assembly and switch lining, wherein, piston assembly comprises piston 61 and plugging plate 62, connects by piston rod 63 between piston 61 and the plugging plate 62, is provided with spring 66 between the projection on piston 61 and the cavity inner wall, projection is between piston 61 and plugging plate 62, and piston 61 is positioned at cavity away from an end of drainage channel 5.Particularly, be provided with through hole on piston 61 and the plugging plate 62, piston rod 63 passes the through hole of piston 61 and plugging plate 62, and piston 61, plugging plate 62 are linked into an integrated entity.
In the present embodiment, switch lining 67 is installed in an end of close drainage channel 5 in the cavity, and the middle part of switch lining 67 offers the water flowing through hole, piston rod 63 passes the water flowing through hole, plugging plate 62 is between switch lining 67 and drainage channel 5, and the area of plugging plate 62 is greater than the area of described water flowing through hole.
Preferably, also be provided with air intake passage 8 on the valve body 2, air intake passage 8 and piston 61 with and cavity between form piston cavity 85 and be communicated with, this piston cavity 85 is positioned at the end away from drainage channel 5, and the aperture of air intake passage 8 is less than the aperture of drainage channel 3.Preferably, in the present embodiment, intake tunnel 3 is identical with the aperture of drainage channel 5, and the aperture of air intake passage 8 is 1/2nd of intake tunnel 3.Air intake passage 8 can with for total reservoir provides the air compressor of gas to link to each other, the air with certain pressure of air compressor discharge is used for supplying with total reservoir on the one hand, is used on the other hand supplying with air intake passage 8.Because air belongs to compressible fluid, and air intake passage 8 apertures are less than the aperture of intake tunnel 3, it is rear compressed that air with uniform pressure enters air intake passage 8, thereby so that the air pressure that flows out from air intake passage 8 increases, greater than the air pressure that flows out from intake tunnel 3, and piston 61 will will be opened plugging plate 62 under the promotion of air pressure and ponding pressure, so that intake tunnel 3 and drainage channel 5 conductings, the ponding in total reservoir will be discharged from.
In the present embodiment, because the air in the reservoir also can enter in the drain valve, in order to prevent gas leakage, also be provided with stationary bushing 64 between piston 61 and the plugging plate 62, stationary bushing 64 is installed in the cavity, and is provided with flexible sheet 65 between piston 61 and the stationary bushing 64.The centre of stationary bushing 64 and flexible sheet 65 offers respectively through hole, so that piston rod 63 can pass, by stationary bushing 64 flexible sheet 65 is gripped.Flexible sheet 65 is separated intake tunnel 3 and cavity, on the one hand, so that the empty G﹠W that enters from intake tunnel 3 can't enter cavity top, on the other hand, so that the air that enters from air intake passage 8 can't enter the bottom of cavity, keep cavity pressure difference up and down.
In the present embodiment, as shown in Figure 2, the flow direction of arrow indication ponding among the figure after ponding and air enter valve body from intake tunnel 3, by second channel 32, first passage 31, acts on the plugging plate 62 successively.Because ponding and air all have certain pressure, ponding and air can produce the first downward pressure to plugging plate 62, and the first pressure produces the first pressure.Simultaneously, air also produces the second pressure upwards to piston rod 63, stationary bushing 64 and flexible sheet 65, can produce the second pressure accordingly.And enter air in the piston cavity 85 from air intake passage 8, and can produce the 3rd downward pressure to piston 61 and piston rod 63, produce the 3rd pressure.Because less than the lifting surface area of the second pressure-acting on piston rod 63, stationary bushing 64 and flexible sheet 65, and the 3rd pressure is greater than the second pressure at the lifting surface area on piston 61 and the piston rod 63 for the 3rd pressure-acting, therefore, the 3rd pressure is greater than the second pressure.By the direction of above-mentioned pressure as can be known, the direction of the first pressure and the 3rd pressure straight down, the effect of the second pressure straight up, on the whole, can produce downward total pressure to piston rod 63, when ponding reaches a certain amount of, this total pressure that produces will be greater than external atmosphere pressure, at this moment, piston assembly (piston 61, piston rod 63 and plugging plate 62) will integral body move downward, plugging plate 62 is opened the water flowing through hole on the switch lining 67, and ponding discharges by drainage channel 5, and this moment, spring 66 was compressed.After ponding and part air exhausting are gone out, the first pressure and the second pressure reduce, described total pressure reduces, spring 66 recovers deformation gradually, the precompression pushing piston 61 of spring 66 moves upward, piston 61 drives piston assembly and together moves upward, when spring 66 recovers deformation fully, plugging plate 62 is closed the water flowing through hole on the switch lining 67 again, and when the water level in the Auto-drainage valve chamber rose to certain altitude, piston assembly can integral body move downward again under the effect of pressure, drainage channel 5 is opened, water is discharged, and so forth, just can realize Auto-drainage.In the present embodiment, realize automatic drainage function by valve member 6.
In the present embodiment, in order to realize manual drainage, correspondingly, offer switch passage 21 on the valve body 2, switch passage 21 and first passage 31 coaxial settings, hand control switch 4 is arranged in the switch passage 21.Fig. 3 is the structural representation of the hand control switch shown in Fig. 2, as shown in Figure 3, hand control switch 4 comprises running shaft 41, is provided with the first shutoff baffle plate 42 of shutoff first passage 31 on the running shaft 41, and the second shutoff baffle plate 43 of shutoff switch passage 21.The first shutoff baffle plate 42 is arranged on the end that running shaft 41 stretches into valve body 2, the shape of the first shutoff baffle plate 42 and the second shutoff baffle plate 43 will adapt to the shape of first passage 31 and switch passage 21, distance between the first shutoff baffle plate 42 and the second shutoff baffle plate 43 is greater than the aperture of second channel 32, so that the first shutoff baffle plate 42 and the second shutoff baffle plate 43 can close second channel 32, and can be convenient mobile in first passage 31 and switch passage 21.The end that running shaft 41 stretches out valve body 2 also is provided with handle 44, easy-to-operat hand control switch 4.For so that the better tightness of drain valve, switch passage 21 is provided with mounting plate 23 at the opening of valve body 2.Offer through hole on the mounting plate 23, running shaft 41 is located in the through hole.
In the present embodiment, as shown in Figure 2, manual drainage passage 7 is communicated with intake tunnel 3 by switch passage 21, and the opening of manual drainage passage 7 and switch passage 21 connectivity parts is positioned at away from the position of switch passage 21 with second channel 32 jointing places.
Action schematic representation when Fig. 4, Fig. 5, Fig. 6 are respectively automatic drain valve manual drainage shown in Figure 2.Particularly, when automatic drain valve can Auto-drainage, hand control switch 4 was in position shown in Figure 4, can adjust the size of intake tunnel 3 amount of inlet water by rotary manual control switch 4, when hand control switch 4 rotated to position shown in Figure 4, the water accumulating volume that first passage 31 enters reduced.When automatic drain valve breaks down, in the time of can't realizing Auto-drainage, can second channel 32 be closed by rotary manual control switch 4 to suitable position, thereby prevent gas leakage.Particularly, can be with hand control switch 4 rotation to position shown in Figure 5, so that the first shutoff baffle plate 42 of hand control switch 4 is first passage 31 shutoff, the second shutoff baffle plate 43 is with 21 shutoff of switch passage, this moment, ponding and air were blocked in the second channel 32, thereby can prevent gas leakage.When the ponding in the reservoir becomes many, ponding need to be discharged, rotary manual control switch 4 is to position shown in Figure 6, at this moment, the first shutoff baffle plate 42 will first passage 32 shutoff, and the second shutoff baffle plate 43 is opened switch passage 21, and ponding enters switch passage 21 from second channel 32, manual drainage passage 7 by being communicated with switch passage 21 discharges the flow direction of ponding direction as shown by the arrows in Figure 6 with ponding.After ponding was discharged, rotary manual control switch 4 with first passage 31 and 21 shutoff of switch passage, had been realized the manual drainage function again easily to position shown in Figure 4.
Automatic drain valve provided by the invention not only can be realized Auto-drainage, owing to be provided with hand control switch at automatic drain valve, when automatic drain valve breaks down, also can realize manual drainage and prevent drain valve gas leakage by hand control switch.Than prior art, automatic drain valve small volume provided by the invention, the space that installation takies is little, does not need to set up other devices, provides cost savings.
The present invention also provides a kind of air braking system, Fig. 7 is the structural representation of air braking system of the present invention, as shown in Figure 7, air braking system provided by the invention comprises: total reservoir 9 and automatic drain valve 10, be provided with the intake grill 91 that is connected with air compressor on total reservoir 9, and the exhaust outlet 92 that is connected with braking line.Also be provided with the drain opening 93 that is connected with automatic drain valve 10 on total reservoir 9,10 intake tunnel is connected on drain opening 93 and the automatic drain valve, wherein, automatic drain valve 10 is for adopting automatic drain valve shown in Figure 2, concrete structure can referring to above-mentioned automatic drain valve embodiment's explanation, not repeat them here.
In the present embodiment, total reservoir 9 can be connected with air compressor, air compressor can pass into the air of compression in total reservoir 9 by intake grill 91, being entrained with a small amount of moisture and also can entering total reservoir 9 from intake grill 91 with air wherein, ponding in total reservoir 9 enters automatic drain valve 10 by drain opening 93, in time ponding is discharged by automatic drain valve 10, guarantee the air of total reservoir 9 energy normal supply braking line dryings.
In the practical process of reality, between total reservoir 9 and air compressor, can also be provided with exsiccator, contain water in the pressurized air that air compressor is got, by air drier air is carried out drying, to remove moisture, dried air enters total reservoir 9 by the pipeline between air drier and the total reservoir 9 from intake grill 91, also can draw in addition the air intake passage connection that a pipeline is connected with automatic drain valve on exsiccator, is used for supplying with automatic drain valve 10 air.
Air braking system provided by the invention, by automatic drain valve the ponding in total reservoir is discharged automatically, when the automatic drain valve fault can't Auto-drainage, can realize manual drainage by the hand control switch that arranges on the automatic drain valve, so that the ponding in total reservoir can in time discharge, what guarantee total reservoir supply braking line is dry air, and whole air braking system can be worked.
It should be noted that at last: above each embodiment is not intended to limit only in order to technological scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characteristics wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technological scheme.
Claims (8)
1. an automatic drain valve is characterized in that, comprises valve body, is provided with intake tunnel and drainage channel on the described valve body;
Between described intake tunnel and the drainage channel, be provided with the valve member of the described intake tunnel of automatic control and drainage channel break-make;
Also be provided with the manual drainage passage that is communicated with described intake tunnel on the described valve body, and also be provided with the described intake tunnel break-make of control on the described valve body, and the hand control switch of controlling described intake tunnel and manual drainage passage break-make.
2. automatic drain valve according to claim 1 is characterized in that, the L-type passage of described intake tunnel for being made of first passage and second channel is provided with described valve member between wherein said first passage and the described first row water channel;
Offer the switch passage on the described valve body, described switch passage and the coaxial setting of described first passage are provided with described hand control switch in the described switch passage.
3. automatic drain valve according to claim 2, it is characterized in that, described manual drainage passage is communicated with described intake tunnel by described switch passage, and the opening at described manual drainage passage and described switch channel connection place is positioned at the position away from described switch passage and second channel jointing place;
Described hand control switch comprises running shaft, be provided with the first shutoff baffle plate of the described first passage of shutoff on the described running shaft, and the second shutoff baffle plate of the described switch passage of shutoff, the distance between described the first shutoff baffle plate and the second shutoff baffle plate is greater than the aperture of described second channel.
4. automatic drain valve according to claim 3 is characterized in that, described switch passage is provided with mounting plate at the opening of described valve body;
Offer through hole on the described mounting plate, described running shaft is located in the described through hole.
5. automatic drain valve according to claim 4 is characterized in that, the end that described running shaft stretches out described valve body is provided with handle.
6. arbitrary described automatic drain valve is characterized in that according to claim 1-5, and described valve inner is provided with the cavity of accommodating described valve member, and described intake tunnel and drainage channel are communicated with described cavity respectively;
Described valve member comprises piston assembly and switch lining, wherein:
Described piston assembly comprises piston and plugging plate, connect by piston rod between described piston and the plugging plate, be provided with spring between the projection on described piston and the described cavity inner wall, described projection is between described piston and described plugging plate, and described piston is positioned at described cavity away from an end of described drainage channel;
Described switch lining is installed in an end of close described drainage channel in the described cavity, and the middle part of described switch lining offers the water flowing through hole, described piston rod passes described water flowing through hole, described plugging plate is between described switch lining and described drainage channel, and the area of described plugging plate is greater than the area of described water flowing through hole;
Also be provided with air intake passage on the described valve body, the piston cavity that forms between described air intake passage and described piston and the described cavity is communicated with, described piston cavity is positioned at the end away from described drainage channel, and the aperture of described air intake passage is less than the aperture of described drainage channel.
7. automatic drain valve according to claim 6 is characterized in that, also is provided with stationary bushing between described piston and the described plugging plate, and described stationary bushing is installed in the described cavity, and is provided with flexible sheet between described piston and the described stationary bushing.
8. an air braking system is characterized in that, comprising: total reservoir and automatic drain valve, be provided with the intake grill that is connected with air compressor on described total reservoir, and the exhaust outlet that is connected with braking line;
On described total reservoir, also be provided with the drain opening that is connected with described automatic drain valve, described drain opening is communicated with intake tunnel on the described automatic drain valve;
Described automatic drain valve is for adopting the arbitrary described automatic drain valve of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210534174.7A CN103016749B (en) | 2012-12-11 | 2012-12-11 | Automatic water drainage valve and air brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210534174.7A CN103016749B (en) | 2012-12-11 | 2012-12-11 | Automatic water drainage valve and air brake system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016749A true CN103016749A (en) | 2013-04-03 |
| CN103016749B CN103016749B (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210534174.7A Expired - Fee Related CN103016749B (en) | 2012-12-11 | 2012-12-11 | Automatic water drainage valve and air brake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103016749B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407438A (en) * | 2013-08-20 | 2013-11-27 | 瑞立集团瑞安汽车零部件有限公司 | Piston type pneumatic control valve |
| CN113026693A (en) * | 2021-03-16 | 2021-06-25 | 宁波市水利水电规划设计研究院有限公司 | Intelligent water inlet and outlet equipment for farmland |
| CN114150740A (en) * | 2021-11-29 | 2022-03-08 | 厦门标尔玛卫浴科技有限公司 | Delayed drainage structure and delayed drainage method of drainage valve |
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| CN201574869U (en) * | 2009-12-07 | 2010-09-08 | 浙江双富电力设备有限公司 | Manual draining valve having seal tightening device |
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| CN202946696U (en) * | 2012-12-11 | 2013-05-22 | 北京二七轨道交通装备有限责任公司 | Automatic drain valve and air braking system |
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| CN101072964A (en) * | 2004-12-10 | 2007-11-14 | 喜开理株式会社 | Diaphragm valve |
| US20100213758A1 (en) * | 2007-09-04 | 2010-08-26 | Toyota Jidosha Kabushiki Kaisha | Normally closed electromagnetic valve, a brake control system, a control method for a normally closed electromagnetic valve, and an electromagnetic valve |
| CN201574869U (en) * | 2009-12-07 | 2010-09-08 | 浙江双富电力设备有限公司 | Manual draining valve having seal tightening device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103407438A (en) * | 2013-08-20 | 2013-11-27 | 瑞立集团瑞安汽车零部件有限公司 | Piston type pneumatic control valve |
| CN103407438B (en) * | 2013-08-20 | 2015-12-09 | 瑞立集团瑞安汽车零部件有限公司 | Piston type pneumatic control valve |
| CN113026693A (en) * | 2021-03-16 | 2021-06-25 | 宁波市水利水电规划设计研究院有限公司 | Intelligent water inlet and outlet equipment for farmland |
| CN114150740A (en) * | 2021-11-29 | 2022-03-08 | 厦门标尔玛卫浴科技有限公司 | Delayed drainage structure and delayed drainage method of drainage valve |
| CN114150740B (en) * | 2021-11-29 | 2023-09-29 | 厦门标尔玛卫浴科技有限公司 | Delay drainage structure and delay drainage method of drainage valve |
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| CN103016749B (en) | 2015-02-25 |
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Address after: 100072 Beijing city Fengtai District Changxindian Yang Gong Zhuang No. 1 Patentee after: CNR BEIJING FEB.7TH LOCOMOTIVE CO., LTD. Address before: 100072 Beijing city Fengtai District Changxindian Yang Gong Zhuang No. 1 Patentee before: Beijing Erqi Railway Traffic Equipment Co., Ltd. |
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Granted publication date: 20150225 Termination date: 20181211 |