CN220566589U - Emptying valve convenient to overhaul - Google Patents
Emptying valve convenient to overhaul Download PDFInfo
- Publication number
- CN220566589U CN220566589U CN202320869065.4U CN202320869065U CN220566589U CN 220566589 U CN220566589 U CN 220566589U CN 202320869065 U CN202320869065 U CN 202320869065U CN 220566589 U CN220566589 U CN 220566589U
- Authority
- CN
- China
- Prior art keywords
- block
- groove
- rod
- connecting shaft
- butt joint
- 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.)
- Active
Links
- 210000001503 joint Anatomy 0.000 claims abstract description 45
- 238000007599 discharging Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000003032 molecular docking Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a discharge valve convenient to overhaul, and relates to the field of discharge valves. According to the utility model, through the arrangement of the structures such as the connecting shaft handle, the butt joint block, the screw rod positioning block and the like, when the threaded valve rod on the discharge valve is overhauled, the connecting plate is pulled outwards to enable the plug block to be separated from the limit groove, so that the connecting shaft handle can rotate, then the connecting shaft handle is rotated, the butt joint block enters the butt joint block limit groove from the connecting groove under the action of the connecting shaft handle, the connection between the threaded valve rod and the plugging block is released, and the threaded valve rod can be taken down from the discharge valve to be overhauled, so that convenience and rapidness are realized.
Description
Technical Field
The utility model relates to the field of discharge valves, in particular to a discharge valve convenient to overhaul.
Background
The discharging valve is mainly used for discharging the bottom of the containers such as the reactor and the storage tank, and is welded to the bottom of the storage tank and other containers through the bottom flange of the valve, so that the phenomenon that liquid materials and the like are detained at the bottom of the tank is eliminated.
In the prior art, the blanking valve mainly can move up and down through rotating the valve rod to realize that the blanking block is subjected to the operations of blanking and discharging, in order to facilitate the rotation of the valve rod, one end of the valve rod is usually connected out of the valve body, but the valve rod exposed outside for a long time can be affected by air to cause oxidation corrosion, so that the valve rod is required to be overhauled and replaced regularly without affecting the operation of the valve body, but the valve rod is relatively inconvenient to detach and install, and therefore, the blanking valve convenient to overhaul is required to meet the demands of people.
Disclosure of Invention
The utility model aims to provide a discharge valve convenient to overhaul, which solves the problems that the valve rod exposed outside for a long time in the prior art is influenced by air to cause oxidation corrosion, and the valve rod needs to be overhauled and replaced regularly in order not to influence the operation of a valve body, but is inconvenient to detach and install.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a baiting valve convenient to overhaul, includes the baiting valve, threaded valve rod is installed to the screw thread on the baiting valve, and threaded valve rod's one end movable mounting has the carousel, and fixed mounting has fixed knot to construct on the carousel, rotates on the carousel and installs the connecting axle handle, and fixed mounting has the other one end fixed mounting of connecting structure threaded valve rod to construct on the connecting axle handle to have a stifled material piece, fixed mounting has location structure on the stifled material piece.
Preferably, the fixed knot constructs including the connecting block, connecting block fixed mounting is on the carousel, rotates on the connecting block and installs the torsional spring connecting rod, and fixed mounting has the connecting plate on the torsional spring connecting rod, and one side fixed mounting of connecting plate has the inserted block, has seted up the spacing inslot on the connecting axle is hand, inserted block movable mounting.
Preferably, the connecting block rotating groove is formed in the connecting block, and the torsion spring connecting rod is rotatably arranged in the connecting block rotating groove.
Preferably, the torsion spring is fixedly sleeved on the torsion spring connecting rod, one end of the torsion spring is fixedly arranged on the torsion spring connecting rod, and the other end of the torsion spring is fixedly arranged on the inner wall of the connecting block rotating groove.
Preferably, the connecting structure comprises a connecting shaft, the connecting shaft is fixedly arranged on one side of a connecting shaft handle, and two butt joint blocks are fixedly arranged on the connecting shaft.
Preferably, the threaded valve rod is provided with a connecting shaft rotating groove, and the connecting shaft is rotatably arranged in the connecting shaft rotating groove.
Preferably, the positioning structure comprises two limiting blocks, the two limiting blocks are fixedly arranged on the plugging block, a screw rod groove is formed in the threaded valve rod, and two screw rod positioning blocks are fixedly arranged on the inner wall of the screw rod groove.
Preferably, the limiting block is provided with a connecting groove, the butt joint block is movably arranged in the connecting groove, the screw rod positioning block is provided with a butt joint block limiting groove, the connecting groove on the same side is communicated with the butt joint block limiting groove, and the butt joint block on the same side is matched with the butt joint block limiting groove.
The beneficial effects of the utility model are as follows:
according to the utility model, through the arrangement of the structures such as the connecting shaft handle, the butt joint block, the screw rod positioning block and the like, when the threaded valve rod on the discharge valve is overhauled, the connecting plate is pulled outwards to enable the plug block to be separated from the limit groove, so that the connecting shaft handle can rotate, then the connecting shaft handle is rotated, the butt joint block enters the butt joint block limit groove from the connecting groove under the action of the connecting shaft handle, the connection between the threaded valve rod and the plugging block is released, and the threaded valve rod can be taken down from the discharge valve to be overhauled, so that convenience and rapidness are realized.
According to the utility model, through the arrangement of the structures such as the insert block, the limit groove and the torsion spring, when the overhaul is completed, the connecting plate is pulled outwards to enable the torsion spring to rotate and be in a tightening state, then the threaded valve rod is placed into the discharging valve, the connecting groove corresponds to the limit groove of the butt block, at the moment, the connecting shaft handle is rotated to enable the butt block to enter the connecting groove from the limit groove of the butt block, the connection of the threaded valve rod is completed, the convenience and the rapidness are realized, then the pulled connecting plate is loosened, the torsion spring in the tightening state is restored to be original shape, the insert block is driven to be reinserted into the limit groove, and the fixation of the threaded valve rod is completed.
Drawings
FIG. 1 is a schematic structural view of a discharge valve for easy maintenance according to the present utility model;
FIG. 2 is a schematic diagram of a cross-sectional portion of a threaded valve stem of a discharge valve for easy access according to the present utility model;
FIG. 3 is a schematic structural view of a cross-sectional part of a connecting block of a discharge valve for easy maintenance according to the present utility model;
FIG. 4 is a schematic structural view of a cross-sectional part of a limiting block of a discharge valve for easy maintenance according to the present utility model;
fig. 5 is a schematic structural view of a stopper portion of a discharge valve for easy maintenance according to the present utility model.
In the figure: 100. a discharging valve; 101. a threaded valve stem; 102. a turntable; 103. a plugging block; 200. a connecting block; 201. a torsion spring connecting rod; 202. a connecting plate; 203. inserting blocks; 204. a limit groove; 205. a connecting block rotating groove; 206. a torsion spring; 300. a connecting shaft handle; 301. a connecting shaft; 302. a butt joint block; 303. a connecting shaft rotating groove; 400. a limiting block; 401. a screw rod positioning block; 402. a screw groove; 403. a connecting groove; 404. and a butt joint block limiting groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1 to 5, a discharge valve convenient to overhaul, comprising a discharge valve 100, wherein a threaded valve rod 101 is mounted on the discharge valve 100 in a threaded manner, one end of the threaded valve rod 101 is movably mounted with a turntable 102, a fixed structure is fixedly mounted on the turntable 102, a connecting shaft handle 300 is rotatably mounted on the turntable 102, a plugging block 103 is fixedly mounted on the other end of the threaded valve rod 101 with the fixed structure on the connecting shaft handle 300, a positioning structure is fixedly mounted on the plugging block 103, the movable connecting plate 202 drives an inserting block 203 to be separated from a limiting groove 204 by pulling the connecting plate 202 outwards, thereby eliminating the limit on the connecting shaft handle 300, enabling the connecting shaft handle 300 to rotate, at the moment, rotating the connecting shaft handle 300, enabling the rotating connecting shaft handle 300 to drive the connecting shaft 301 to rotate in the connecting shaft rotating groove 303, enabling the rotating connecting shaft handle 300 to drive the splicing block 302 to rotate, the butt joint block 302 is separated from the connecting groove 403 arranged on the limiting block 400 and enters the butt joint block limiting groove 404 arranged on the screw rod positioning block 401, so that the connection between the screw thread valve rod 101 and the material blocking block 103 is released, the screw thread valve rod 101 can be separated from the material blocking block 103, then the screw thread valve rod 101 is pulled outwards, the screw thread valve rod 101 is separated from the material discharging valve 100, the overhaul of the screw thread valve rod 101 is facilitated, after the overhaul is completed, the insert block 203 is pulled again, the moving insert block 203 drives the torsion spring connecting rod 201 to rotate, the rotating torsion spring connecting rod 201 drives the torsion spring 206 to stretch, the torsion spring 206 is in a stretched state, then the screw thread valve rod 101 is put into the material discharging valve 100 again, the butt joint block limiting groove 404 on the screw rod positioning block 401 is communicated with the connecting groove 403 on the limiting block 400, then, the connecting shaft handle 300 is rotated, the rotating connecting shaft handle 300 drives the connecting shaft 301 and the butt joint block 302 to rotate, thereby the butt joint block 302 is separated from the butt joint block limiting groove 404 and enters the connecting groove 403, the connection between the threaded valve rod 101 and the plugging block 103 is completed, then the pulled connecting plate 202 is loosened, the torsion spring 206 is released from stretching and rotates, thereby the torsion spring connecting rod 201 is driven to rotate in the connecting block rotating groove 205 formed in the connecting block 200, the rotating torsion spring connecting rod 201 drives the connecting plate 202 to rotate, the rotating connecting plate 202 drives the inserting block 203 to rotate and reinsert in the limiting groove 204, and the fixing of the connecting shaft handle 300 is completed.
Further, fixed knot constructs including connecting block 200, connecting block 200 fixed mounting is on carousel 102, rotationally install torsional spring connecting rod 201 on connecting block 200, fixed mounting has connecting plate 202 on torsional spring connecting rod 201, one side fixed mounting of connecting plate 202 has inserted block 203, set up spacing groove 204 on the connecting axle handle 300, inserted block 203 movable mounting is in spacing groove 204, pulling inserted block 203, let the inserted block 203 of removal drive torsional spring connecting rod 201 rotate, let pivoted torsional spring connecting rod 201 drive torsional spring 206 stretch, thereby let torsional spring 206 be in tensile state, then put into baiting valve 100 again in threaded valve rod 101, let the connecting axle handle 300 of rotation drive connecting axle 301 and the connecting groove 403 on stopper 400 be linked together, thereby let the connecting axle handle 300 of rotation break away from in the connecting groove 404 and get into in the connecting groove 403, accomplish the connection of threaded valve rod 101 and stopper 103, then loosen the connecting plate 202 of pulling, let the tensile state of torsional spring 206 drive connecting rod 201 drive the connecting rod 201 and rotate in the connecting groove 200, let the connecting rod 201 rotate in the connecting groove is driven to rotate in the connecting rod 200 again, and the connecting rod is driven to rotate in the connecting groove 203 is driven to rotate, and the connecting rod is connected in the connecting plate is rotated to the connecting rod is rotated to the connecting plate is rotated, and the connecting plate is rotated is accomplished to be connected to the connecting plate is rotated, and the connecting plate is rotated, the connecting plate is 204 is rotated.
Further, the connection block 200 is provided with a connection block rotation groove 205, and the torsion spring connection rod 201 is rotatably installed in the connection block rotation groove 205, and the position of the torsion spring connection rod 201 is further described.
Further, the torsion spring 206 is fixedly sleeved on the torsion spring connecting rod 201, one end of the torsion spring 206 is fixedly installed on the torsion spring connecting rod 201, and the other end of the torsion spring 206 is fixedly installed on the inner wall of the connecting block rotating groove 205, so that the position of the torsion spring 206 is further described.
Further, the connection structure comprises a connection shaft 301, the connection shaft 301 is fixedly arranged on one side of the connection shaft handle 300, two butt joint blocks 302 are fixedly arranged on the connection shaft 301, the connection plate 202 is pulled outwards, the movable connection plate 202 drives the plug block 203 to be separated from the limiting groove 204, the limitation on the connection shaft handle 300 is removed, the connection shaft handle 300 can rotate, at the moment, the connection shaft handle 300 is rotated, the connection shaft handle 300 is driven by the rotating connection shaft 300 to rotate in the connection shaft rotating groove 303, the rotating connection shaft handle 300 drives the butt joint blocks 302 to rotate, the butt joint blocks 302 are separated from the connecting groove 403 formed in the limiting block 400, the butt joint blocks 404 formed in the lead screw positioning block 401 are separated from the connecting groove 403, the connection between the threaded valve rod 101 and the plug block 103 is removed, after maintenance is completed, the plug block 203 is pulled again, the movable plug block 203 drives the torsion spring 201 to rotate, the torsion spring 206 is stretched, the torsion spring 206 is in a stretched state, the connection shaft handle 101 is put into the discharge valve 100 again, the connecting groove 403 is connected with the lead screw positioning block 403, and the lead screw positioning block 403 is connected with the lead screw positioning block 103, the lead screw positioning block 300 is connected with the connecting block 103, and the lead screw positioning block 300 is connected with the connecting block 300 in the connecting groove 404, and the connecting groove 300 is connected with the connecting groove 300 in a rotating mode.
Further, the threaded valve rod 101 is provided with a connecting shaft rotating groove 303, and the connecting shaft 301 is rotatably installed in the connecting shaft rotating groove 303, and the position and the relationship of the connecting shaft 301 are further described.
Further, the positioning structure comprises two limiting blocks 400, the two limiting blocks 400 are fixedly installed on the plugging block 103, a screw groove 402 is formed in the screw valve rod 101, two screw positioning blocks 401 are fixedly installed on the inner wall of the screw groove 402, when the screw valve rod is detached, the connecting shaft handle 300 is rotated, the connecting shaft handle 300 drives the connecting shaft 301 to rotate in the connecting shaft rotating groove 303, the rotating connecting shaft handle 300 drives the butt joint block 302 to rotate, the butt joint block 302 is separated from the connecting groove 403 formed in the limiting block 400, the butt joint block 302 enters the butt joint block limiting groove 404 formed in the screw positioning block 401, therefore connection between the screw valve rod 101 and the plugging block 103 is released, during installation, the screw valve rod 101 is replaced into the discharging valve 100, the butt joint block limiting groove 404 on the screw valve rod positioning block 401 is communicated with the connecting groove 403 on the limiting block 400, then the connecting shaft handle 300 is rotated, the connecting shaft handle 300 drives the connecting shaft 301 to rotate with the butt joint block 302, and the butt joint block 302 is separated from the butt joint block limiting groove 404 and enters the connecting groove 403, and the screw valve rod 101 is completed.
Further, the limiting block 400 is provided with a connecting groove 403, the butt joint block 302 is movably installed in the connecting groove 403, the lead screw positioning block 401 is provided with a butt joint block limiting groove 404, the connecting groove 403 on the same side is communicated with the butt joint block limiting groove 404, the butt joint block 302 on the same side is matched with the butt joint block limiting groove 404, and the positions and the relations of the butt joint block 302, the connecting groove 403 and the butt joint block limiting groove 404 are further described.
The working principle of the utility model is as follows:
by pulling the connecting plate 202 outwards, the movable connecting plate 202 drives the plug 203 to separate from the limit groove 204, thereby releasing the limit on the connecting shaft handle 300, the connecting shaft handle 300 can rotate, at this time, the rotating connecting shaft handle 300 drives the connecting shaft 301 to rotate in the connecting shaft rotating groove 303, thereby the rotating connecting shaft handle 300 drives the docking block 302 to rotate, the docking block 302 is separated from the limit groove 403 formed in the limiting block 400, the docking block 404 formed in the lead screw positioning block 401 is entered, the connection between the threaded valve stem 101 and the plug 103 is released, the threaded valve stem 101 can be separated from the limit groove 103, then the threaded valve stem 101 is pulled outwards, the threaded valve stem 101 is separated from the discharge valve 100, overhaul is conveniently carried out, after overhaul is completed, the plug 203 is pulled again, the moving plug 203 drives the torsion spring 201 to rotate, the torsion spring 206 is driven by the rotating connecting rod 201, thereby the docking block 206 is in a stretching state, then the threaded valve stem 101 is placed again into the limit groove 403, the connecting block 101 is placed in the limit groove 200, the docking block is rotated, the threaded valve stem 101 is separated from the limit groove 103, the connecting block 103 is connected with the connecting block 200, the connecting block 200 is rotated, the docking block 300 is connected with the connecting block 200, and the connecting block 200 is rotated, thereby the connecting block 101 is connected to the connecting block 200 is pulled out of the connecting block 101, and the connecting block is connected to the connecting block 200 by the connecting block is rotated, and the connecting block 200 by the connecting block 200, let pivoted torsional spring connecting rod 201 drive connecting plate 202 and rotate to let pivoted connecting plate 202 drive insert block 203 rotate reinsertion spacing groove 204, accomplish the fixed to connecting axle handle 300, when using baiting valve 100, through rotatory carousel 102, let pivoted carousel 102 drive screw thread valve rod 101 rotate and carry out parallel movement, thereby let pivoted screw thread valve rod 101 drive screw rod locating piece 401 that is connected on screw rod groove 402 push stopper 400 rotate, let pivoted stopper 400 drive the rotation of stopper piece 103 and carry out parallel movement, can open the valve port and let material such as liquid circulate normally, and then do not influence the normal use of baiting valve 100.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. The utility model provides a baiting valve convenient to overhaul, includes baiting valve (100), its characterized in that: the automatic feeding device is characterized in that a threaded valve rod (101) is arranged on the feeding valve (100) in a threaded mode, a rotary table (102) is movably arranged at one end of the threaded valve rod (101), a fixed structure is fixedly arranged on the rotary table (102), a connecting shaft handle (300) is rotatably arranged on the rotary table (102), a plugging block (103) is fixedly arranged at the other end of the threaded valve rod (101) of the connecting shaft handle (300), and a positioning structure is fixedly arranged on the plugging block (103).
2. The easy-to-overhaul discharge valve according to claim 1, wherein: the fixed knot constructs including connecting block (200), connecting block (200) fixed mounting is on carousel (102), rotates on connecting block (200) and installs torsional spring connecting rod (201), and fixed mounting has connecting plate (202) on torsional spring connecting rod (201), and one side fixed mounting of connecting plate (202) has inserted block (203), has seted up spacing groove (204) on connecting axle handle (300), and inserted block (203) movable mounting is in spacing groove (204).
3. The easy-to-overhaul discharge valve according to claim 2, wherein: a connecting block rotating groove (205) is formed in the connecting block (200), and the torsion spring connecting rod (201) is rotatably installed in the connecting block rotating groove (205).
4. The easy-to-overhaul discharge valve according to claim 2, wherein: the torsion spring (206) is fixedly sleeved on the torsion spring connecting rod (201), one end of the torsion spring (206) is fixedly installed on the torsion spring connecting rod (201), and the other end of the torsion spring (206) is fixedly installed on the inner wall of the connecting block rotating groove (205).
5. The easy-to-overhaul discharge valve according to claim 1, wherein: the connecting structure comprises a connecting shaft (301), wherein the connecting shaft (301) is fixedly arranged on one side of a connecting shaft handle (300), and two butt joint blocks (302) are fixedly arranged on the connecting shaft (301).
6. The easy-to-overhaul discharge valve according to claim 1, wherein: the threaded valve rod (101) is provided with a connecting shaft rotating groove (303), and the connecting shaft (301) is rotatably arranged in the connecting shaft rotating groove (303).
7. The easy-to-overhaul discharge valve according to claim 1, wherein: the positioning structure comprises two limiting blocks (400), the two limiting blocks (400) are fixedly arranged on the plugging block (103), a screw rod groove (402) is formed in the threaded valve rod (101), and two screw rod positioning blocks (401) are fixedly arranged on the inner wall of the screw rod groove (402).
8. The easy access blow valve of claim 7, wherein: the limiting block (400) is provided with a connecting groove (403), the butt joint block (302) is movably arranged in the connecting groove (403), the screw rod positioning block (401) is provided with a butt joint block limiting groove (404), the connecting groove (403) on the same side is communicated with the butt joint block limiting groove (404), and the butt joint block (302) on the same side is matched with the butt joint block limiting groove (404).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320869065.4U CN220566589U (en) | 2023-04-18 | 2023-04-18 | Emptying valve convenient to overhaul |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320869065.4U CN220566589U (en) | 2023-04-18 | 2023-04-18 | Emptying valve convenient to overhaul |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220566589U true CN220566589U (en) | 2024-03-08 |
Family
ID=90087997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320869065.4U Active CN220566589U (en) | 2023-04-18 | 2023-04-18 | Emptying valve convenient to overhaul |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220566589U (en) |
-
2023
- 2023-04-18 CN CN202320869065.4U patent/CN220566589U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220566589U (en) | Emptying valve convenient to overhaul | |
| CN214466253U (en) | Corrosion-resistant ball valve | |
| CN216843166U (en) | Easy-to-maintain sealing device for turnover valve | |
| CN216225957U (en) | Novel petrochemical pipeline is clean device | |
| CN215045797U (en) | Control device for garbage can throwing opening cover on airplane | |
| CN214031853U (en) | Automatic device of puting in of sewage disinfection powder | |
| CN206632927U (en) | reactor pressure vessel guide rod bushing tool | |
| CN201152360Y (en) | Desulfurating dust collector flap valve | |
| CN209366432U (en) | A kind of static state shipboard test propeller | |
| CN211201536U (en) | Electric sector gate | |
| CN2189253Y (en) | Automatic losing device for water valve | |
| CN220932465U (en) | Quick quantitative sampler of cement | |
| CN206834523U (en) | Power distribution cabinet | |
| CN101140040A (en) | Handle of valve matching with gas leakage electric headstock gear | |
| CN221357873U (en) | Severe nursing drainage device | |
| CN218326258U (en) | Opposite clamping type butterfly valve with adjustable handle | |
| CN217927390U (en) | Valve opening and closing structure | |
| CN221296093U (en) | Hand injury prevention ampoule bottle opener for nursing | |
| CN212480166U (en) | Easy-to-open butterfly valve | |
| CN207361888U (en) | A kind of microorganism delivery device for being used to improve breeding water body water quality | |
| CN209264351U (en) | Hand power screw sampler | |
| CN221170784U (en) | Butterfly valve with pressure release mechanism | |
| CN216843209U (en) | Pneumatic bi-pass ball valve | |
| CN221006940U (en) | Sewage sampling equipment | |
| CN210683193U (en) | Swift train connector of unloading |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |