CN206338464U - A kind of valve body - Google Patents
A kind of valve body Download PDFInfo
- Publication number
- CN206338464U CN206338464U CN201621421143.0U CN201621421143U CN206338464U CN 206338464 U CN206338464 U CN 206338464U CN 201621421143 U CN201621421143 U CN 201621421143U CN 206338464 U CN206338464 U CN 206338464U
- Authority
- CN
- China
- Prior art keywords
- bonnet
- valve
- valve body
- valve rod
- axle sleeve
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of valve body, belong to valve technology field.The valve body includes valve body, end cap, bonnet and gland, valve body inner chamber is from top to bottom divided into outflow lumen and influent stream chamber by valve port, inlet is communicated with influent stream chamber, liquid outlet is communicated with outflow lumen, the upper and lower ends of valve body are connected with bonnet and end cap seal respectively, vertically rotated provided with axle provided with bonnet top described in gland at the top of bonnet, axle sleeve top passes gland and can be fixedly connected with the hand wheel upwards, the valve rod mounting hole for being used for installing valve rod is vertically provided with axle sleeve and bonnet, the valve rod mounting hole of axle sleeve is provided with the internal thread coordinated with valve rod, bonnet is provided with the indicator that can vertically slide, indicator can be fixed on valve rod, valve port is provided with the flap supporting construction for being used for supporting flap to rotate, the bellow seal structure outside valve rod can be set in by being vertically provided with the top of outflow lumen, the bottom of bellow seal structure can be fixedly connected with valve rod.
Description
Technical field
The utility model belongs to valve technology field, more particularly to a kind of valve body, and the valve body coordinates with valve rod and flap can
Obtain with cut-off, check, filtering, sealing and the automatic valve repaired with clearing up the functions such as sealing surface.
Background technology
The coal slurry conveying of coal mining, the ash transfer of power plant, the slurry transportation of oil drilling, chemical fertilizer factory synthesis
Medium in the pipeline such as ammonia production, the alumina producing of aluminium manufacturer and industry, sanitary wastewater processing, carries substantial amounts of outstanding
Floating particles, when the valve is closed, suspended particulate inevitably will be sandwiched between valve sealing face, cause valve sealing face to break
Badly leak, hereafter medium is just to pass through at a high speed the leakage point of sealing surface, and carries out continual impact and mill to leakage point
Damage, force leakage point to expand and ultimately cause seal failure rapidly, in order to solve this problem, employ and carry in some occasions
The knife-edge flat gate valve of wiping action, ball valve, although during the closing of knife-edge flat gate valve, although the shearing between metallic sealing section
Under effect, big suspended particulate can be exempted and enter sealing surface, but still thin little particle can be carried secretly and enter sealing surface, and cause gold
Category sealing surface is abraded and leaked, and the moment that ball valve is closed can clamp larger suspended particulate, causes what nonmetallic materials made
Sealing surface of seat is damaged and leaked, therefore sealing life of the prior art valve under containing suspended particulate mixture condition is all very
It is short, it is impossible to meet application request.
The content of the invention
In order to solve the above problems, a kind of valve body is present embodiments provided, the valve body coordinates available with valve rod and flap
With cut-off, check, filtering, sealing and the automatic valve repaired with clearing up the functions such as sealing surface.The technical scheme is as follows：
The utility model embodiment provides a kind of valve body, including valve body 1, end cap 2, bonnet 5 and gland 6, described
Valve body 1 is provided with inlet 15, liquid outlet 14 and valve port 12, and the inner chamber of valve body 1 is from top to bottom divided into by the valve port 12
Outflow lumen 17 and influent stream chamber 16, the inlet 15 are communicated with influent stream chamber 16, and the liquid outlet 14 is communicated with outflow lumen 17, described
The upper and lower ends of valve body 1 are tightly connected with bonnet 5 and end cap 2 respectively, and the top of bonnet 5 is provided with gland 6；The bonnet
5 tops are vertically rotated provided with axle sleeve 8, and the top of axle sleeve 8 passes gland 6 and can be fixedly connected with the hand wheel upwards, institute
The valve rod mounting hole for being vertically provided with axle sleeve 8 and bonnet 5 and being used for installing valve rod is stated, the valve rod of the axle sleeve 8 is installed
Hole is provided with the internal thread coordinated with valve rod, and the bonnet 5 is provided with the indicator 7 that can vertically slide, described to indicate
Device 7 can be fixed on valve rod, and the valve port 12 is provided with the flap supporting construction 10 for being used for supporting flap to rotate, the outflow lumen
17 tops are vertically provided with can be set in the bellow seal structure 9 on valve rod, and the bottom of the bellow seal structure 9 can be with
Valve rod is fixedly connected.
Preferably, columned screen pack, the mistake are provided between the valve port 12 and end cap 2 in the utility model embodiment
Filter screen connects to form filter chamber by valve port 12 with outflow lumen 17.
Further, it is equipped with the downside of the valve port 12 in the utility model embodiment and on end cap 2 for installing screen pack
Positioning step hole.
Preferably, the valve body 1 in the utility model embodiment is connected provided with sewage draining exit 18 with influent stream chamber 16, described
Sewage draining exit 18 is provided with sealing ring and blocking.
Preferably, sealing is respectively equipped with the flange of the upper and lower ends of valve body 1 in the utility model embodiment recessed
Platform and lower sealing concave station, the bonnet 5 are provided with the flange concave station coordinated with upper sealing concave station；The end cap 2 is provided with
The seal boss that concave station coordinates is sealed, between upper the sealing concave station and flange concave station between seal boss and lower sealing concave station
It is equipped with sealing gasket.
Preferably, dust-proof seal ring is provided between the axle sleeve 8 and bonnet 5 in the utility model embodiment, it is accordingly, described
The first mounting groove 51 being provided with for installing dust-proof seal ring of bonnet 5；The middle part of axle sleeve 8 is provided with bearing positioning table, institute
State axle sleeve 8 to rotate on bonnet 5 by two bearings 4, two bearings 4 are respectively arranged on the both sides up and down of bearing positioning table, the pressure
The pressure of lid 6 is on the bearing 4 of upside
Wherein, the bellow seal structure 9 in the utility model embodiment include be close to the bottom of bonnet 5 bowl-type flange 92,
The bellows 91 that can be set on valve rod and the bellows fixture 93 that can be fixedly connected with valve rod, the bellows 91 are located at valve
The underface of bar mounting hole and its upper and lower ends is fixedly connected with bowl-type flange 92 and bellows fixture 93 respectively, the bowl-type
The outer rim of flange 92 is located between bonnet 5 and valve body 1.
Wherein, the top of bonnet 5 in the utility model embodiment is provided with the bearing mounting hole 55 for being used for installing bearing 4, its
Bottom is provided with the sealing mounting groove 54 coordinated with bowl-type flange 92, and the valve rod mounting hole of the bonnet 5 is close provided with valve rod is installed
Second mounting groove 53 of seal.
Wherein, the indicator 7 in the utility model embodiment includes that the retainer ring and retainer ring two on valve rod can be fixed on
The chute of side；Connected between the top and its underpart of the bonnet 5 by two guiding ribs 3 being oppositely arranged, the edge of guiding rib 3
Vertical direction sets and is connected with slide.
Preferably, the flap supporting construction 10 in the utility model embodiment is provided with supported hole 11, the supported hole 11
Located at the center of valve port 12.
The beneficial effect brought of technical scheme that the utility model embodiment is provided is：The utility model embodiment is provided
A kind of valve body, it has following function：
(1) rotation hand wheel makes the axle sleeve band ovable valve stem mounted in bonnet vertically for linear motion, makees in pressure medium
With lower promotion flap, flap is increased with valve stem slides, flap is separated with valve port, medium enters enters stream by influent stream chamber
Chamber；Otherwise rotation hand wheel make axle sleeve band ovable valve stem it is vertically for linear motion make valve rod promote flap sealing valve port so as to cut
The flowing of disconnected pipeline fluid.
(2) flap can rotate under fluid forces in flap supporting construction, on valve port sealing surface carry out cleaning and
Repair.
(3) the simple in construction of indicator can show the working condition of valve.
(4) closing operating room is formed by bonnet, valve body, sealing gasket, sealing ring and bellow seal structure, prevents medium
External leakage.
(5) screen pack can be filtered to the fluid for flowing through valve, and after valve runs certain time, filtering net surface glues
During attached a large amount of foreign matters, open to block and connect compressed air or clean water flushing and blowdown, so as to effectively protect the clear of sealing surface
It is clean.
Brief description of the drawings
Fig. 1 is the structural representation for the valve body that the utility model embodiment is provided；
Fig. 2 is the sectional view for the valve body that the utility model embodiment is provided；
Fig. 3 is the upward view for the valve body that the utility model embodiment is provided；
Fig. 4 is the side view for the valve body that the utility model embodiment is provided；
Fig. 5 is the external view for the valve body that the utility model embodiment is provided；
Fig. 6 is the stereogram for the bonnet that the utility model embodiment is provided；
Fig. 7 is the side view for the bonnet that the utility model embodiment is provided；
Fig. 8 is the structural representation for the bonnet that the utility model embodiment is provided；
Fig. 9 is the external view for the axle sleeve that the utility model embodiment is provided；
Figure 10 is the sectional view for the axle sleeve that the utility model embodiment is provided；
Figure 11 is the structural representation for the bellow seal structure that the utility model embodiment is provided；
Figure 12 is the stereogram for the bellow seal structure that the utility model embodiment is provided；
Figure 13 is the external view for the end cap that the utility model embodiment is provided；
Figure 14 is the structural representation for the gland that the utility model embodiment is provided；
Figure 15 is the structural representation for the indicator that the utility model embodiment is provided.
In figure：1 valve body, 2 end caps, 3 guiding ribs, 4 bearings, 5 bonnets, 6 glands, 7 indicators, 8 axle sleeves, 9 ripples are close
Seal structure, the support of 10 flaps, 11 supported holes, 12 valve ports, 13 wear resistant alloy materials, 14 liquid outlets, 15 inlets, 16 influent stream chambers,
17 outflow lumens, 18 sewage draining exits, 51 first mounting grooves, 53 second mounting grooves, 54 sealing mounting grooves, 55 bearing mounting holes, 91 ripples
Pipe, 92 bowl-type flanges, 93 bellows fixtures.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type is described in further detail.
Referring to Fig. 1-15, the utility model embodiment provides a kind of valve body, the valve body include valve body 1, end cap 2,
Bonnet 5 and gland 6 etc., wherein, valve body 1 is provided with inlet 15（Left side）, liquid outlet 14（Right side）With valve port 12（It is circular）,
The inner chamber of valve body 1 is from top to bottom divided into outflow lumen 17 and influent stream chamber 16 by valve port 12, and inlet 15 is communicated with influent stream chamber 16, gone out
Liquid mouthful 14 is communicated with outflow lumen 17, and the upper and lower ends of valve body 1 are tightly connected with bonnet 5 and end cap 2 respectively, the top of bonnet 5
Provided with gland 6.Aforementioned structure and the valve body structure of existing stop valve are essentially identical, and difference is：In the present embodiment
The top of bonnet 5 is vertically rotated provided with axle sleeve 8, and the top of axle sleeve 8 passes gland 6 and its top energy upwards（It is specially outer
Hexagonal structure）It is fixedly connected with the hand wheel, the valve rod that being vertically provided with axle sleeve 8 and bonnet 5 is used to install valve rod is installed
Hole, the valve rod mounting hole of axle sleeve 8 is provided with the internal thread coordinated with valve rod, transported above and below valve rod
It is dynamic.Bonnet 5 is provided with the indicator 7 that can vertically slide（The middle part of bonnet 5 is provided with indication window, and indicator 7 can indicated
Slided up and down in window）, indicator 7 be used for indicate valve unlatching or cut-off state while valve rod can be ensured vertically
Motion, to open during positioned at top, otherwise then ends positioned at bottom.Indicator 7 can be fixed on valve rod and can follow above and below valve rod
Motion.Valve port 12 is provided with the flap supporting construction 10 for being used for supporting flap to rotate, equal when flap is separated and combined with valve rod
Flap can be made to rotate on valve port 12.The top of outflow lumen 17（That is the bottom of bonnet 5）Valve rod can be set in by being vertically provided with
On bellow seal structure 9,9 sealing effectiveness of bellow seal structure simultaneously can guarantee that valve rod move up and down, bellow seal structure 9
Bottom can be fixedly connected with valve rod.Gland 6, axle sleeve 8, valve rod mounting hole, bellow seal structure 9, valve port 12 and end cap 2 are located at same
In one vertical straight line.
Preferably, columned screen pack, screen pack are provided between the valve port 12 and end cap 2 in the utility model embodiment
Connect to form filter chamber with outflow lumen 17 by valve port 12.Specifically, screen pack is filtered vertically in influent stream chamber 16
Net is coaxially disposed with valve port 12 and its internal diameter is more than the diameter of valve port 12.
Further, referring to Fig. 1,2 and 13, it is equipped with the downside of valve port 12 and end cap 2 in the utility model embodiment
Positioning step hole for installing screen pack.The upper and lower ends of screen pack are located in two positioning step holes respectively.
Preferably, referring to Fig. 5, the valve body 1 in the utility model embodiment is provided with sewage draining exit 18 and influent stream chamber 16
Connection, sewage draining exit 18 is provided with sealing ring and blocking.Sewage draining exit 18 is specifically located at the bottom of valve body 1 and close to liquid outlet 14
Side.
Preferably, referring to Fig. 1,2,7,8 and 13, the flange of the upper and lower ends of valve body 1 in the utility model embodiment
On be respectively equipped with sealing concave station and lower sealing concave station, the flange concave station that bonnet 5 is provided with and upper sealing concave station coordinates, end cap 2
Be provided with it is lower sealing concave station coordinate seal boss, between upper sealing concave station and flange concave station and seal boss and it is lower seal it is recessed
Sealing gasket is equipped between platform.
Preferably, referring to Fig. 8, dust-proof seal ring is provided between the axle sleeve 8 and bonnet 5 in the utility model embodiment（O shapes
Circle）, accordingly, the first mounting groove 51 being provided with for installing dust-proof seal ring of bonnet 5.Referring to Fig. 9 and 10, in axle sleeve 8
Portion is provided with bearing positioning table（Coordinate with bearing mounting hole）, axle sleeve 8 rotated on the bonnet 5 by two bearings 4,4 points of two bearings
Not She Yu bearing positioning table both sides up and down, the pressure of gland 6 is on the bearing 4 on the upside of the bearing positioning table
Wherein, referring to Fig. 1,11 and 12, the bellow seal structure 9 in the utility model embodiment includes being close to the bottom of bonnet 5
The bowl-type flange 92 in portion, the bellows 91 that can be set on valve rod and the bellows fixture 93 that can be fixedly connected with valve rod, ripple
Line pipe 91 is located at the underface of valve rod mounting hole and its upper and lower ends is fixed with bowl-type flange 92 and bellows fixture 93 respectively
Connection, the outer rim of bowl-type flange 92 is located between bonnet 5 and valve body 1.
Wherein, referring to Fig. 1 and 6-8, the top of bonnet 5 in the utility model embodiment is provided with the axle for being used for installing bearing 4
Mounting hole 55 is held, its bottom is provided with the sealing mounting groove 54 coordinated with bowl-type flange 92, sealing mounting groove 54 is bowl-type groove；Valve
Valve stem packing ring is provided between lid 5 and valve rod, the valve rod mounting hole of bonnet 5 is provided with installation valve stem packing ring（O-ring）
Two mounting grooves 53.Referring to Figure 14, the bottom of gland 6 is provided with annular boss, correspondingly, and the top of bonnet 5 is provided with circular groove（Positioned at axle
Hold directly over mounting hole 55 and connected with bearing mounting hole 55）.
Wherein, referring to Figure 15, indicator 7 in the utility model embodiment include the retainer ring that can be fixed on valve rod and
The chute of the retainer ring left and right sides, retainer ring is provided with mounting hole（Straight pin mounting hole）, chute is the cunning with U-shaped or rectangular channel
Dynamic ear.It is made up of and indicates the two guiding rib connections 3 being oppositely arranged referring to Fig. 1 and 6-8, between the top and its underpart of bonnet 5
Window, two guiding ribs 3 are symmetrically set in the left and right sides of bonnet 5, and guiding rib 3 vertically sets and is connected with slide.
Preferably, referring to Fig. 1-4, the flap supporting construction 10 in the utility model embodiment is provided with supported hole 11（Valve
Valve bottom centre is provided with support shaft）, supported hole 11 is located at the center of valve port 12.Specifically, flap supporting construction 10 by three around branch
Support bar group that hole 11 sets is supportted into, three support bars to centroclinal down-set and along the radially uniform distribution of valve port 12（It is in
Equilateral triangle is distributed, and supported hole 11 is located at crossover location）.
Wherein, referring to Fig. 2, the valve port 12 in the utility model embodiment is provided with antifriction alloy material with the region that flap is sealed
Material 13, wear resistant alloy material is conical structure.
Wherein, referring to Fig. 1, connected between valve body 1, end cap 2, bonnet 5 and gland 6 by screw bolt and nut.
Wherein, " first " and " second " in the present embodiment only plays differentiation, without other special meanings.
The utility model embodiment provides a kind of valve body, and it has following function：
(1) rotation hand wheel makes the axle sleeve band ovable valve stem mounted in bonnet vertically for linear motion, makees in pressure medium
With lower promotion flap, flap is increased with valve stem slides, flap is separated with valve port, medium enters enters stream by influent stream chamber
Chamber；Otherwise rotation hand wheel make axle sleeve band ovable valve stem it is vertically for linear motion make valve rod promote flap sealing valve port so as to cut
The flowing of disconnected pipeline fluid.
(2) flap can rotate under fluid forces in flap supporting construction, on valve port sealing surface carry out cleaning and
Repair.
(3) the simple in construction of indicator can show the working condition of valve.
(4) closing operating room is formed by bonnet, valve body, sealing gasket, sealing ring and bellow seal structure, prevents medium
External leakage.
(5) screen pack can be filtered to the fluid for flowing through valve, and after valve runs certain time, filtering net surface glues
During attached a large amount of foreign matters, open to block and connect compressed air or clean water flushing and blowdown, so as to effectively protect the clear of sealing surface
It is clean.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modifications, equivalent substitutions and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (10)
1. a kind of valve body, including valve body (1), end cap (2), bonnet (5) and gland (6), the valve body (1) be provided with into
Valve body (1) inner chamber is from top to bottom divided into outflow lumen by liquid mouthful (15), liquid outlet (14) and valve port (12), the valve port (12)
(17) and influent stream chamber (16), the inlet (15) communicates with influent stream chamber (16), the liquid outlet (14) and outflow lumen (17) phase
Logical, the upper and lower ends of the valve body (1) are tightly connected with bonnet (5) and end cap (2) respectively, are set at the top of the bonnet (5)
There is gland (6)；Characterized in that, bonnet (5) top is vertically rotated provided with axle sleeve (8), axle sleeve (8) top
Pass gland (6) upwards and can be fixedly connected with the hand wheel, being vertically provided with the axle sleeve (8) and bonnet (5) is used for
The valve rod mounting hole of valve rod is installed, the valve rod mounting hole of the axle sleeve (8) is provided with the internal thread coordinated with valve rod, the bonnet
(5) provided with the indicator (7) that can vertically slide, the indicator (7) can be fixed on valve rod, the valve port (12)
It is provided with the top of the flap supporting construction (10) for being used for supporting flap to rotate, the outflow lumen (17) and is vertically provided with and can cover
The bellow seal structure (9) on valve rod is located at, the bottom of the bellow seal structure (9) can be fixedly connected with valve rod.
2. valve body according to claim 1, it is characterised in that provided with cylindric between the valve port (12) and end cap (2)
Screen pack, the screen pack connects to form filter chamber by valve port (12) with outflow lumen (17).
3. valve body according to claim 2, it is characterised in that be equipped with use on the downside of the valve port (12) and on end cap (2)
In the positioning step hole for installing screen pack.
4. valve body according to claim 2, it is characterised in that the valve body (1) is provided with sewage draining exit (18) with entering
Chamber (16) connection is flowed, the sewage draining exit (18) is provided with sealing ring and blocking.
5. valve body according to claim 1, it is characterised in that on the flange of valve body (1) upper and lower ends respectively
Provided with upper sealing concave station and lower sealing concave station, the bonnet (5) is provided with the flange concave station coordinated with upper sealing concave station；The end
Cover (2) be provided with it is lower sealing concave station coordinate seal boss, it is described it is upper sealing concave station and flange concave station between and seal boss
Sealing gasket is equipped between lower sealing concave station.
6. valve body according to claim 1, it is characterised in that dust seal is provided between the axle sleeve (8) and bonnet (5)
Circle, accordingly, the first mounting groove (51) being provided with for installing dust-proof seal ring of the bonnet (5)；In the axle sleeve (8)
Portion is provided with bearing positioning table, and the axle sleeve (8) is rotated on bonnet (5) by two bearings (4), and two bearings (4) are respectively arranged on
The both sides up and down of bearing positioning table, gland (6) pressure is on the bearing (4) of upside.
7. valve body according to claim 6, it is characterised in that the bellow seal structure (9) includes being close to bonnet (5) bottom
The bowl-type flange (92) in portion, the bellows (91) that can be set on valve rod and the bellows fixture that can be fixedly connected with valve rod
(93), the bellows (91) be located at valve rod mounting hole underface and its upper and lower ends respectively with bowl-type flange (92) and ripple
Pipe fixture (93) is fixedly connected, and the outer rim of the bowl-type flange (92) is located between bonnet (5) and valve body (1).
8. valve body according to claim 7, it is characterised in that bonnet (5) top, which is provided with, to be used to install bearing (4)
Bearing mounting hole (55), its bottom is provided with the sealing mounting groove (54) coordinated with bowl-type flange (92), the valve rod of the bonnet (5)
Mounting hole is provided with the second mounting groove (53) for installing valve stem packing ring.
9. valve body according to claim 8, it is characterised in that the indicator (7) includes that consolidating on valve rod can be fixed on
Determine the chute of ring and retainer ring both sides；The guiding rib (3) being oppositely arranged between the top and its underpart of the bonnet (5) by two
Connection, the guiding rib (3) vertically sets and is connected with slide.
10. valve body according to claim 1, it is characterised in that the flap supporting construction (10) is provided with supported hole
(11), the supported hole (11) is located at valve port (12) center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621421143.0U CN206338464U (en) | 2016-12-23 | 2016-12-23 | A kind of valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621421143.0U CN206338464U (en) | 2016-12-23 | 2016-12-23 | A kind of valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206338464U true CN206338464U (en) | 2017-07-18 |
Family
ID=59301239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621421143.0U Expired - Fee Related CN206338464U (en) | 2016-12-23 | 2016-12-23 | A kind of valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206338464U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692359A (en) * | 2020-06-11 | 2020-09-22 | 盐城欧润石化设备制造有限公司 | Valve with dustproof assembly |
| CN113983327A (en) * | 2021-10-18 | 2022-01-28 | 上海市基础工程集团有限公司 | Mud water sensor replacing device for push bench |
-
2016
- 2016-12-23 CN CN201621421143.0U patent/CN206338464U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692359A (en) * | 2020-06-11 | 2020-09-22 | 盐城欧润石化设备制造有限公司 | Valve with dustproof assembly |
| CN111692359B (en) * | 2020-06-11 | 2021-11-12 | 盐城欧润石化设备制造有限公司 | Valve with dustproof assembly |
| CN113983327A (en) * | 2021-10-18 | 2022-01-28 | 上海市基础工程集团有限公司 | Mud water sensor replacing device for push bench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170718 Termination date: 20191223 |