CN203431248U - Two-position three-way cutout cock - Google Patents
Two-position three-way cutout cock Download PDFInfo
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- CN203431248U CN203431248U CN201320520229.9U CN201320520229U CN203431248U CN 203431248 U CN203431248 U CN 203431248U CN 201320520229 U CN201320520229 U CN 201320520229U CN 203431248 U CN203431248 U CN 203431248U
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- push rod
- valve body
- spring
- way cutout
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Abstract
The utility model provides a two-position three-way cutout cock. The two-position three-way cutout cock comprises a valve body (A). The valve body (A) comprises an input port (1), an output port (2) and an exhaust port (3). A gas inlet valve port (4) and an exhaust valve port (5) are formed in the valve body (A). A cam rotating shaft (E) is embedded into the valve body (A). An ejector rod (D) is installed below the cam rotating shaft (E). An ejector rod spring (B) is installed below the ejector rod (D). The lower end of the ejector rod spring (B) makes contact with the inner surface of the valve body (A) so as to position the ejector rod (D). The ejector rod spring (B) is sleeved with a valve. The valve is sleeved with a valve spring (G). A sealing surface at the top end of the valve is provided with rubber in a vulcanized mode. According to the two-position three-way cutout cock, the technical scheme is easy and convenient to implement, the structure is simple, the number of parts is small, the sealing valve can carry out sealing easily and conveniently and is long in service life, good sealing can be achieved because the sealing surface of the sealing valve is provided with the rubber in the vulcanized mode, and the two-position three-way cutout cock is good in low-temperature sealing performance and can meet the requirement for sealing at the low temperature of -40DEG C.
Description
Technical field
The utility model relates to a kind of cock, particularly a kind of two-position three way cutout cock for pneumatic system.
Background technique
The various control functions of locomotive air pipe system need to be carried out break-make control, at present, the pneumatic management system of China adopts mechanical cutout cock to carry out manual control, the cutout cock being commonly used in pneumatic system comprises subbase mounted cutout cock, the function that it has path and opens circuit and mutually switch, when product turnoff state, the air-flow of output terminal can be discharged through exhaust port, but the core component of this cock is ball core, in this ball core, common cock sealing pair mostly is metal or teflon or rubber material, rubber seal has the advantages that cryogenic effect is good, but in the situation that some system is higher for low temperature requirement, rubber packing material is easily aging, working life is shorter, caulking gum is stressed frequent, working pressure easily produces leakage for a long time, thereby can not guarantee the control effect of sealing effect and pipeline, cause the whole control efficiency of pneumatic system to reduce.
Application number is that 201210225179.1 patent of invention discloses a kind of locomotive cock, it comprise the gas source interface that is communicated with source of the gas and with the control interface being communicated with wind part, in cock valve seat, comprise source of the gas chamber, control chamber and three cavitys of exhaust cavity, source of the gas chamber is communicated with gas source interface, control chamber is communicated with control interface, in interface between exhaust cavity and source of the gas chamber, be provided with hollow stem, hollow stem and interface adopt radial seal.This invention adopts the break-make of cam mechanism driving hollow stem structure control gas circuit, and knob-operated dynamics is little, but this cock effect under cryogenic conditions is not good enough.
Model utility content
The utility model is improved for above-mentioned defect, a kind of two-position three way cutout cock is provided, it comprises valve body, this valve body comprises inlet opening, delivery outlet, relief opening, this valve body includes suction valve doorway and outlet valve doorway, setting-in cam shaft in this valve body, push rod is equipped with in this cam shaft below, push rod spring is equipped with in this push rod below, this push rod spring lower end contacts and makes push rod location with valve interior surface, described push rod spring outside suit valve, this valve outside suit valve spring, the sealing surface sulfuration of described valve tip has rubber, can realize good sealability.
Preferably, described valve is sealed valve.
Preferably, described valve is cylindrical structural, this cylindrical structural inside comprises through hole, push rod spring described in setting-in in this through hole, the top of described cylindrical structural comprises that stepped shape is protruded I and stepped shape is protruded II, the diameter that this stepped shape is protruded II is greater than the diameter that described stepped shape is protruded I, and this stepped shape is protruded the described valve spring of I outside suit, and this valve spring is positioned at the below that described stepped shape is protruded II.
Preferably, described valve spring top is positioned at the below of the stepped shape protrusion II of described valve, and described valve spring bottom is sat and is loaded on spring seat.
Preferably, described spring seat is the cylindrical structural that comprises inner via hole, and this cylindrical structural outside comprises flange, and this flange is located in valve body for spring seat, valve spring described in setting-in above this flange.
Preferably, described inlet opening is positioned at the middle part in valve body outside, and described delivery outlet is positioned at the top of inlet opening outside valve body, and described relief opening is positioned at the bottom of described inlet opening.
Preferably, in valve body between described inlet opening and described relief opening, comprise groove I, setting-in K shape seal ring in this groove I, the internal diameter of this groove I top valve body is less than the internal diameter of this groove I below valve body, the valve body of this groove I top and the valve body of its below have a difference in internal diameters, and this difference in internal diameters equals the wall thickness of the cylindrical structural of described spring seat.
Preferably, a side of described groove I top valve body comprises K type circle sealing technology hole I, is the auxiliary hole that makes the sealing of K type circle inflation, and it is for realizing the quick effective sealing of K type circle herein.
Preferably, in the valve body between described inlet opening and described delivery outlet, comprise boss, this boss top setting-in air intake valve.
Preferably, the top, outside of described air intake valve comprises stepped shape protrusion III, and this protrusion III contacts and play positioning action with the boss in described valve body.
Preferably, between the outer surface of described air intake valve and described valve interior surface, be Spielpassung.
Preferably, comprise O shape ring recess I on described valve interior surface and described air intake valve surface of contact, setting-in O shape circle in this groove I, for sealing.
Preferably, the central position of described air intake valve comprises suction valve doorway, and when cutout cock is when opening circuit, described air intake valve lower end contacts and seals with the vulcanized rubber of described sealed valve end sealing face, the air-flow between blocking-up inlet opening and delivery outlet.
Preferably, setting-in gland in the valve body of described delivery outlet top.
Preferably, between described valve body and described gland, be Spielpassung, the part that described valve body contacts with described gland comprises O shape ring recess II, wherein setting-in O shape is enclosed, so that sealing.
Preferably, in described gland, comprise groove II, setting-in K shape seal ring in this groove II.
Preferably, the gland of described groove II below comprises K shape circle sealing technology hole, and it is for realizing the quick effective sealing of K type circle herein.
Preferably, in described gland, push rod described in setting-in, is Spielpassung between this push rod and described gland.
Preferably, described cam shaft middle part is cam structure, and end is cylindrical structure.
Preferably, concave surface and the described push rod of the cam structure at described cam shaft middle part mesh and play the effect of adjusting cock break-make.
Preferably, the minimum-depth of described cam shaft middle part concave surface is greater than the height on described suction valve doorway.
Preferably, described cam shaft is connected with the handle that is contained in valve body outside, and handle rotates controls turning to of cam shaft.
Preferably, described push rod below comprises concave inward structure, push rod spring described in setting-in in this concave inward structure, this concave inward structure limits the lateral displacement of described push rod spring, make described push rod spring stably be positioned at middle part, push rod below, can not depart from because of the variation of length travel the position at push rod center, thereby guarantee the normal operation of whole cock.
Preferably, described push rod below radially comprise conical socket structure, this structure is saved material, and the space of delivery outlet is increased, be beneficial to gas communication, thereby alleviate the effect of whole cock, and guarantee that equipped at outlet port air-flow is common, to increasing the life-span of whole cock, there is good effect.
Preferably, the external diameter of described push rod lower end is less than the diameter on the suction valve doorway of described air intake valve, between described push rod lower end and the top of described valve, forms outlet valve doorway.
The working method of two-position three way cutout cock of the present utility model is: when whole cock is when opening circuit, under the elastic force effect of push rod push rod spring thereunder, contact with the concave surface of cam shaft, be the position of push rod in upper end, now, the elastic force of valve spring acts on sealed valve lower end, the upper surface of sealed valve is contacted with air intake valve, the vulcanized rubber of sealed valve upper surface is by sealed valve and air intake valve sealing, therefore the air-flow between inlet opening and delivery outlet is blocked by suction valve doorway, simultaneously, because push rod is in upper end position, outlet valve doorway is in opening state, therefore, the air-flow of equipped at outlet port is communicated with the through hole in valve by outlet valve doorway, and arrive relief opening and discharge, after this, by 90 ° of rotatable handles, the arc surface at cam shaft middle part contacts with push rod, thereby push rod is moved downward, push rod contacts with sealed valve upper-end surface, the vulcanized rubber of sealed valve upper-end surface plays seal action, now outlet valve doorway is closed, the distance moving downward due to push rod equals the minimum-depth of cam shaft concave surface, and this minimum-depth is greater than the height on described suction valve doorway, therefore, when outlet valve doorway is closed, sealed valve is along with push rod moves downward and departs from air intake valve, thereby suction valve doorway is opened, now, between inlet opening and delivery outlet, by suction valve doorway, be communicated with, but because end in contact sealing on push rod and sealed valve, cause being truncated between delivery outlet and relief opening, after this, 90 °, opposite spin handle, push rod contacts with the concave surface of cam shaft again, makes push rod be positioned at the position of upper end, and described cock is the position in path again, repeat rotatable handle, cock repeats at path with between opening circuit to switch, and repeats above-mentioned working procedure.
More multioperation is known to those skilled in the art, and repeats no more.
The technological scheme of the two-position three way cutout cock that the utility model provides comprises the combination in any of each part mentioned above, and the simple change of each part mentioned above assembly or combination are still protection domain of the present utility model.
The two-position three way cutout cock technological scheme that the utility model provides is easy, simple in structure, and component are few, and wherein valve seal is light, and working life is longer, and the low temperature seal of product is functional, can meet low temperature-40 ℃ requirement.Two-position three way cutout cock described in the utility model for air-channel system, can be realized the path of gas circuit and controls of opening circuit, and the sealing surface of described sealed valve vulcanizes and have rubber, can realize good sealing.
Accompanying drawing explanation
Fig. 1 is the sectional view of a preferred embodiment of two-position three way cutout cock described in the utility model, and the cock in figure is in turnoff state.
Fig. 2 be embodiment illustrated in fig. 1 when turnoff state the engagement of push rod and cam shaft.
Fig. 3 be embodiment illustrated in fig. 1 when channel status the engagement of push rod and cam shaft.
Mark in Fig. 1-Fig. 3 represents respectively:
15 outlet valve doorways, 2 delivery outlet 3 relief opening 4 suction valve doorway, inlet opening
A valve B push rod spring C sealed valve D push rod E cam shaft
F handle G valve spring H gland H1 K type circle sealing technology hole
A1 K type circle sealing technology hole I 4A air intake valve G1 spring seat.
Embodiment
In order to understand better the utility model, below in conjunction with accompanying drawing, describe in detail according to this practicality respectively
The preferred embodiment of novel two-position three way cutout cock, two-position three way cutout cock in the present embodiment, comprise valve A, this valve A comprises inlet opening 1, delivery outlet 2, relief opening 3, setting-in cam shaft E in this valve A, this cam shaft E is equipped with push rod D in below, this push rod D is equipped with push rod spring B in below, this push rod spring B lower end contacts and makes push rod D location with valve A internal surface, described push rod spring B outside suit sealed valve C, sealed valve C outside suit valve spring G, described valve A includes suction valve doorway 4 and outlet valve doorway 5.
In the present embodiment, preferably, the sulfuration of the sealing surface on described sealed valve C top has rubber, can realize good sealability.
In the present embodiment preferably, described sealed valve C is cylindrical structural, this cylindrical structural inside comprises through hole, push rod spring B described in setting-in in this through hole, the top of described cylindrical structural comprises that stepped shape is protruded I and stepped shape is protruded II, the diameter that this stepped shape is protruded II is greater than the diameter that described stepped shape is protruded I, and this stepped shape is protruded the described valve spring G of I outside suit, and valve spring G is positioned at the below that described stepped shape is protruded II.
In the present embodiment, preferably, valve spring G top is positioned at the below of the stepped shape protrusion II of described sealed valve C, and described valve spring G bottom is sat and is loaded on spring seat G1.
In the present embodiment, preferably, spring seat G1 is the cylindrical structural that comprises inner via hole, and this cylindrical structural outside comprises flange, and this flange is located in valve A for spring seat G1, this flange top setting-in valve spring G.
In the present embodiment, preferably, described inlet opening 1 is positioned at the middle part in valve A outside, and described delivery outlet 2 is positioned at the top of inlet opening 1 outside valve A, and described relief opening 3 is positioned at the bottom of described inlet opening 1.
In the present embodiment preferably, in valve A between described inlet opening 1 and described relief opening 3, comprise groove I, setting-in K shape seal ring in this groove I, the internal diameter of this groove I top valve A is less than the internal diameter of this groove I below valve A, the valve A of this groove I top and the valve A of its below have a difference in internal diameters, and this difference in internal diameters equals the wall thickness of the cylindrical structural of described spring seat G1.
In the present embodiment, preferably, a side of described groove I top valve A comprises K shape circle sealing technology hole I A1, and it is for realizing the quick effective sealing of K type circle herein.
In the present embodiment, preferably, in the valve A between described inlet opening 1 and described delivery outlet 2, comprise boss, this boss top setting-in air intake valve 4A.
In the present embodiment, preferably, the top, outside of described air intake valve 4A comprises stepped shape protrusion III, and this protrusion III contacts and play positioning action with the boss in described valve A.
In the present embodiment, preferably, between the outer surface of described air intake valve 4A and described valve A internal surface, be Spielpassung.
In the present embodiment, preferably, on described valve A internal surface and described air intake valve 4A surface of contact, comprise O shape ring recess I, setting-in O shape circle in this groove, for sealing.
In the present embodiment preferably, the wall thickness of described air intake valve 4A increases from down to up gradually, center, this air intake valve 4A top comprises described suction valve doorway 4, when cutout cock is when opening circuit, 4 lower ends, described suction valve doorway contact and seal with the vulcanized rubber of described sealed valve C end sealing face, the air-flow between blocking-up inlet opening 1 and delivery outlet 2.
In the present embodiment preferably, setting-in gland H in the valve body of described delivery outlet top.
In the present embodiment, preferably, between described valve A and described gland H, be Spielpassung, the part that described valve A contacts with described gland H comprises O shape ring recess II, and wherein setting-in O shape is enclosed, so that sealing.
In the present embodiment, preferably, in described gland H, comprise groove II, setting-in K shape seal ring in this groove II.
In the present embodiment, preferably, the gland H of described groove II below comprises K shape circle sealing technology hole H1, and it is for realizing the quick effective sealing of K type circle herein.
In the present embodiment, preferably, setting-in push rod D in described gland H, is Spielpassung between this push rod D and gland H.
In the present embodiment, preferably, described cam shaft E middle part is cam structure, and end is cylindrical structure.
In the present embodiment, preferably, concave surface and the described push rod D of the cam structure at described cam shaft E middle part mesh and play the effect of adjusting cock break-make.
In the present embodiment, preferably, the minimum-depth of described cam shaft E middle part concave surface is greater than the height on described suction valve doorway 4.
In the present embodiment, preferably, described cam shaft E is connected with the handle F that is contained in valve A outside, and handle F rotates and controls turning to of cam shaft E.
In the present embodiment preferably, described push rod D below comprises concave inward structure, push rod spring B described in setting-in in this concave inward structure, this concave inward structure limits the lateral displacement of described push rod spring B, make described push rod spring B stably be positioned at middle part, push rod D below, can not depart from because of the variation of length travel the position at push rod D center, thereby guarantee the normal operation of whole cock.
In the present embodiment preferably, described push rod D below radially comprise conical socket structure, this structure is saved material, and the space of delivery outlet 2 is increased, be beneficial to gas communication, thereby alleviate the effect of whole cock, and guarantee that delivery outlet 2 place's air-flows are common, to increasing the life-span of whole cock, have good effect.
In the present embodiment, preferably, the external diameter of described push rod D lower end is less than the diameter on the suction valve doorway 4 of described air intake valve 4A, between described push rod D lower end and the top of described sealed valve C, forms outlet valve doorway 5.
The working method of the two-position three way cutout cock of the present embodiment is: when whole cock is when opening circuit, under the elastic force effect of push rod D push rod spring B thereunder, contact with the concave surface of cam shaft E, be the position of push rod D in upper end, now, the elastic force of valve spring G acts on sealed valve lower end, the upper surface of sealed valve C is contacted with air intake valve 4A, the vulcanized rubber of sealed valve C upper surface is by sealed valve C and air intake valve 4A sealing, therefore the air-flow between inlet opening 1 and delivery outlet 2 is blocked by suction valve doorway 4, simultaneously, because push rod D is in upper end position, outlet valve doorway 5 is in opening state, therefore, the air-flow at delivery outlet 2 places is communicated with the through hole in sealed valve C by outlet valve doorway 5, and arrive relief opening 3 and discharge, after this, by handle F half-twist, the arc surface at cam shaft E middle part contacts with push rod D, thereby push rod D is moved downward, push rod D contacts with sealed valve C upper-end surface, the vulcanized rubber of sealed valve C upper-end surface plays seal action, now outlet valve doorway 5 is closed, the distance moving downward due to push rod D equals the minimum-depth of cam shaft E concave surface, and this minimum-depth is greater than the height on described suction valve doorway 4, therefore, when outlet valve doorway 5 is closed, sealed valve C is along with push rod D moves downward and departs from air intake valve 4A, thereby suction valve doorway 4 is opened, now, between inlet opening 1 and delivery outlet 2, by suction valve doorway 4, be communicated with, but because the upper end in contact of push rod D and sealed valve C sealing, cause being truncated between delivery outlet 2 and relief opening 3, after this, by 90 ° of handle F opposite spins, push rod D contacts with the concave surface of cam shaft E again, makes push rod D be positioned at the position of upper end, and described cock is the position in path again, repeat rotatable handle F, cock repeats at path with between opening circuit to switch, and repeats above-mentioned working procedure.
More multioperation is known to those skilled in the art, and repeats no more.
The technological scheme of the two-position three way cutout cock that the present embodiment provides comprises the combination in any of each part mentioned above, and the simple change of each part mentioned above assembly or combination are still protection domain of the present utility model.
The two-position three way cutout cock technological scheme that the present embodiment provides is easy, simple in structure, and component are few, and wherein valve seal is light, and working life is longer, and product low temperature seal is functional, can meet the requirement of low temperature-40 ℃.Two-position three way cutout cock described in the utility model for air-channel system, can be realized the path of gas circuit and controls of opening circuit, and the sealing surface of described sealed valve C vulcanizes and have rubber, can realize good sealing.
Claims (23)
1. a two-position three way cutout cock, it comprises valve body (A), this valve body (A) comprises inlet opening (1), delivery outlet (2), relief opening (3), this valve body (A) includes suction valve doorway (4) and outlet valve doorway (5), the interior setting-in cam shaft of this valve body (A) (E), push rod (D) is equipped with in this cam shaft (E) below, push rod spring (B) is equipped with in this push rod (D) below, this push rod spring (B) lower end contacts and makes push rod (D) location with valve body (A) internal surface, described push rod spring (B) outside suit valve, this valve outside suit valve spring (G), it is characterized in that: the sealing surface sulfuration of described valve tip has rubber.
2. two-position three way cutout cock as claimed in claim 1, it is characterized in that: described valve is cylindrical structural, this cylindrical structural inside comprises through hole, setting-in push rod spring (B) in this through hole, the top of described cylindrical structural comprises that stepped shape is protruded I and stepped shape is protruded II, the diameter that this stepped shape is protruded II is greater than the diameter that described stepped shape is protruded I, this stepped shape is protruded I outside suit described valve spring (G), and this valve spring (G) is positioned at the below that described stepped shape is protruded II.
3. two-position three way cutout cock as claimed in claim 2, is characterized in that: valve spring (G) top is positioned at the below of the stepped shape protrusion II of described valve, and described valve spring (G) bottom is sat and is loaded on spring seat (G1).
4. two-position three way cutout cock as claimed in claim 3, is characterized in that: described spring seat (G1) is the cylindrical structural that comprises inner via hole, and this cylindrical structural outside comprises flange, valve spring (G) described in setting-in above this flange.
5. two-position three way cutout cock as claimed in claim 4, it is characterized in that: inlet opening (1) is positioned at the middle part in valve body (A) outside, described delivery outlet (2) is positioned at the top of valve body (A) inlet opening, outside (1), and relief opening (3) is positioned at the bottom of described inlet opening (1).
6. two-position three way cutout cock as claimed in claim 5, it is characterized in that: in the valve body (A) between inlet opening (1) and relief opening (3), comprise groove I, setting-in K shape seal ring in this groove I, the internal diameter of this groove I top valve body (A) is less than the internal diameter of this groove I below valve body (A), the valve body (A) of this groove I top has a difference in internal diameters with the valve body (A) of its below, and this difference in internal diameters equals the wall thickness of the cylindrical structural of spring seat (G1).
7. two-position three way cutout cock as claimed in claim 6, is characterized in that: a side of groove I top valve body (A) comprises air hole (A1).
8. two-position three way cutout cock as claimed in claim 7, is characterized in that: in the valve body (A) between inlet opening (1) and described delivery outlet (2), comprise boss, this boss top setting-in air intake valve (4A).
9. two-position three way cutout cock as claimed in claim 8, is characterized in that: the top, outside of air intake valve (4A) comprises stepped shape protrusion III, and this protrudes III and contacts with the boss in described valve body (A).
10. two-position three way cutout cock as claimed in claim 9, is characterized in that: on valve body (A) internal surface and described air intake valve (4A) surface of contact, comprise O shape ring recess I, setting-in O shape circle in this groove I.
11. two-position three way cutout cocks as claimed in claim 10, is characterized in that: the center of air intake valve (4A) comprises suction valve doorway (4).
12. two-position three way cutout cocks as claimed in claim 11, is characterized in that: the interior setting-in gland of valve body (A) (H) of delivery outlet (2) top, the part that valve body (A) contacts with described gland (H) comprises O shape ring recess II, wherein setting-in O shape circle.
13. two-position three way cutout cocks as claimed in claim 12, is characterized in that: in gland (H), comprise groove II, setting-in K shape seal ring in this groove II.
14. two-position three way cutout cocks as claimed in claim 13, is characterized in that: the gland (H) of described groove II below comprises K shape seal ring sealing technology hole (H1).
15. two-position three way cutout cocks as claimed in claim 14, is characterized in that: push rod (D) described in the interior setting-in of described gland (H).
16. two-position three way cutout cocks as claimed in claim 15, is characterized in that: described cam shaft (E) middle part is cam structure, and end is cylindrical structure.
17. two-position three way cutout cocks as claimed in claim 16, is characterized in that: the concave surface of the cam structure at described cam shaft (E) middle part and described push rod (D) engagement.
18. two-position three way cutout cocks as claimed in claim 17, is characterized in that: the minimum-depth of described cam shaft (E) middle part concave surface is greater than the height on described suction valve doorway (4).
19. two-position three way cutout cocks as claimed in claim 18, is characterized in that: cam shaft (E) is connected with the handle (F) that is contained in valve body (A) outside.
20. two-position three way cutout cocks as claimed in claim 19, is characterized in that: push rod (D) below comprises concave inward structure, setting-in push rod spring (B) in this concave inward structure, and this concave inward structure limits the lateral displacement of described push rod spring (B).
21. two-position three way cutout cocks as claimed in claim 20, is characterized in that: push rod (D) below radially comprise conical socket structure.
22. two-position three way cutout cocks as claimed in claim 21, it is characterized in that: the external diameter of push rod (D) lower end is less than the diameter on the suction valve doorway (4) of air intake valve (4A), between push rod (D) lower end and the top of described valve C, form outlet valve doorway (5).
23. two-position three way cutout cocks as claimed in claim 22, is characterized in that: between the outer surface of air intake valve (4A) and valve body (A) internal surface, be Spielpassung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520229.9U CN203431248U (en) | 2013-08-26 | 2013-08-26 | Two-position three-way cutout cock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520229.9U CN203431248U (en) | 2013-08-26 | 2013-08-26 | Two-position three-way cutout cock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431248U true CN203431248U (en) | 2014-02-12 |
Family
ID=50060285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320520229.9U Expired - Fee Related CN203431248U (en) | 2013-08-26 | 2013-08-26 | Two-position three-way cutout cock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203431248U (en) |
-
2013
- 2013-08-26 CN CN201320520229.9U patent/CN203431248U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20190826 |