CN220204239U - Water-cooling oil cylinder - Google Patents
Water-cooling oil cylinder Download PDFInfo
- Publication number
- CN220204239U CN220204239U CN202321399164.7U CN202321399164U CN220204239U CN 220204239 U CN220204239 U CN 220204239U CN 202321399164 U CN202321399164 U CN 202321399164U CN 220204239 U CN220204239 U CN 220204239U
- Authority
- CN
- China
- Prior art keywords
- water
- water tank
- cooling
- oil cylinder
- tank
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 51
- 230000017525 heat dissipation Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 abstract description 25
- 238000007664 blowing Methods 0.000 abstract description 4
- 241000883990 Flabellum Species 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to the technical field of hydraulic equipment, in particular to a water-cooling oil cylinder, which adopts an active blowing mode to act on high-temperature cooling water so as to quickly cool the cooling water, increase the circulation efficiency and improve the reliability; including hydro-cylinder and telescopic link, hydro-cylinder output sliding connection has the telescopic link, still includes: the water cooling mechanism is used for cooling down fast, the water cooling mechanism includes water-cooling chamber, discharge pipe, discharge head, water tank, hinge, case lid, radiating box, link, fan motor, flabellum, input tube and water pump, and the hydro-cylinder outside is connected with the water-cooling chamber is inboard, and water-cooling chamber output intercommunication is provided with the discharge pipe, and discharge pipe output intercommunication is provided with the discharge head, and the discharge head outside is connected with the case lid is inboard, and case lid bottom front side is connected with hinge one end, and the link inboard is connected with fan motor, and the water tank output is linked together with the input tube input, is provided with the water pump on the input tube, and the input tube output is linked together with the water-cooling chamber input.
Description
Technical Field
The utility model relates to the technical field of hydraulic equipment, in particular to a water-cooling oil cylinder.
Background
The oil cylinder is a hydraulic cylinder, and the hydraulic cylinder is a linear motion type executing element with output force being in direct proportion to the effective area of the piston and the pressure difference on two sides of the piston. Its function is to convert hydraulic energy into mechanical energy. The input of the hydraulic cylinder is the flow and pressure of the fluid, and the output is the linear motion speed and force. The piston of the hydraulic cylinder can perform linear reciprocating motion, and the output linear displacement is limited. The hydraulic cylinder is an energy conversion device that converts hydraulic energy into mechanical energy for reciprocating rectilinear motion.
In special environments, such as high-temperature environments, the risk of oil leakage and pressure relief occurs in the continuous reciprocating friction process between the piston and the cylinder, and the prior art is to add a sealing ring on the piston, but the sealing ring is heated to possibly cause deformation, so that the risk of oil leakage and pressure relief occurs at all.
The existing water-cooling oil cylinder with the application number of CN202021865561.5 adopts sectional water cooling, so that the surface of the oil cylinder can be reasonably laid out, the defects caused by the existing structure of the oil cylinder are avoided, the sealing element on the piston is always in the water-cooling range, and the service life of the sealing element is prolonged; adopt the connecting pipe to connect and put through two cavitys to set up the water conservancy diversion spacer in the cavity, can separate the water route, avoid a large amount of flowing water to be in the cavity always and do not flow, promote the water-cooling effect.
But the device generally causes the temperature of water higher under the prerequisite of limited water, and the cooling effect is not good, and the reliability is poor.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides the water-cooling oil cylinder which adopts an active blowing mode to act on high-temperature cooling water, so that the cooling water is quickly cooled, the circulation efficiency is increased and the reliability is improved.
Technical proposal
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a water-cooling hydro-cylinder, includes hydro-cylinder and telescopic link, and hydro-cylinder output sliding connection has the telescopic link, still includes:
the water cooling mechanism is used for cooling rapidly and comprises a water cooling cavity, a discharge pipe, a discharge head, a water tank, a hinge, a box cover, a heat dissipation box, a connecting frame, a fan motor, fan blades, an input pipe and a water pump, wherein the outer side of an oil cylinder is connected with the inner side of the water cooling cavity, the output end of the water cooling cavity is communicated with the discharge pipe, the output end of the discharge pipe is communicated with the discharge head, the outer side of the discharge head is connected with the inner side of the box cover, the front side of the bottom end of the box is connected with one end of the hinge, the other end of the hinge is connected with the rear side of the top end of the water tank, the upper part of the front side of the water tank is communicated with the inner side of the heat dissipation box, the inner side of the connecting frame is connected with the fan motor, the output end of the fan motor is connected with the middle part of the front end of the fan blades, the output end of the water tank is communicated with the input end of the input pipe, and the water pump is arranged on the input pipe.
Preferably, the water tank further comprises a fixing piece, a fixing bolt, a screwing hand and a screw groove frame, wherein the left upper side and the right upper side of the front end of the water tank are respectively connected with the rear end of the screw groove frame, the left front side and the right front side of the top end of the tank cover are respectively connected with the bottom end of the fixing piece, the fixing piece is internally and movably provided with the fixing bolt, and the screwing hand is connected with the outer side of the fixing bolt.
Preferably, the water tank further comprises a filter screen and a handle, wherein the filter screen is detachably arranged on the inner side of the water tank, and the middle parts of the left side and the right side of the top end of the filter screen are respectively connected with the bottom ends of a group of handles.
Preferably, the water tank further comprises a drain valve and a drain head, wherein the front lower side of the right end of the water tank is communicated with the inner end of the drain head, and the drain head is provided with the drain valve.
Preferably, the device further comprises an oil cylinder seat, wherein the outer end of the lower side of the oil cylinder is connected with the inner end of the oil cylinder seat.
Preferably, the novel multifunctional electric box further comprises a handle, and the middle part of the top end of the box cover is connected with the bottom end of the handle.
Advantageous effects
Compared with the prior art, the utility model provides the water-cooling oil cylinder, which has the following beneficial effects:
the oil cylinder acts on the telescopic rod to stretch out and draw back, realizes corresponding functions, is equipped with cooling water in the water tank, and the case lid is in the close state on water tank top under the hinge constraint, and the water pump operation, cooling water in the water tank export to the water-cooling intracavity through the input tube, and the water-cooling chamber acts on the oil cylinder cooling, is being discharged to the discharge head whereabouts by the discharge pipe, and fan motor operation simultaneously is under the link connection, by the flabellum wind-guiding, blows off backward through the cooling tank, acts on the cooling water of the inside discharge head whereabouts state of water tank, makes its rapid cooling, has adopted the cooling water that the mode of initiatively blowing acted on high temperature, makes its rapid cooling, increases circulation efficiency, improves the reliability.
Drawings
FIG. 1 is an axial view of a schematic structural diagram of the present utility model;
FIG. 2 is a right side view of FIG. 1 in accordance with the present utility model;
FIG. 3 is a front view of FIG. 1 of the present utility model;
fig. 4 is a top view of fig. 1 of the present utility model.
The reference numerals in the drawings: 1. an oil cylinder; 2. a telescopic rod; 3. a water cooling cavity; 4. a discharge pipe; 5. a discharge head; 6. a water tank; 7. a hinge; 8. a case cover; 9. a heat radiation box; 10. a connecting frame; 11. a fan motor; 12. a fan blade; 13. an input tube; 14. a water pump; 15. a fixing piece; 16. a fixing bolt; 17. screwing the hand; 18. a screw groove frame; 19. a filter screen; 20. a handle; 21. a drain valve; 22. a water discharge head; 23. an oil cylinder seat; 24. a handle.
Detailed Description
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Example 1
Referring to fig. 1-4, a water-cooled oil cylinder includes an oil cylinder 1 and a telescopic rod 2, wherein an output end of the oil cylinder 1 is slidably connected with the telescopic rod 2, and the water-cooled oil cylinder further includes:
the water cooling mechanism is used for rapidly cooling and comprises a water cooling cavity 3, a discharge pipe 4, a discharge head 5, a water tank 6, a hinge 7, a box cover 8, a heat dissipation box 9, a connecting frame 10, a fan motor 11, fan blades 12, an input pipe 13 and a water pump 14, wherein the outer side of an oil cylinder 1 is connected with the inner side of the water cooling cavity 3, the discharge pipe 4 is communicated with the output end of the water cooling cavity 3, the discharge head 5 is communicated with the inner side of the box cover 8, the front side of the bottom end of the box cover 8 is connected with one end of the hinge 7, the other end of the hinge 7 is connected with the rear side of the top end of the water tank 6, the upper part of the front side of the water tank 6 is communicated with the inner side of the heat dissipation box 9, the inner side of the heat dissipation box 9 is connected with a connecting frame 10, the inner side of the connecting frame 10 is connected with a fan motor 11, the output end of the fan motor 11 is connected with the middle part of the front end of the fan blades 12, the output end of the water tank 6 is communicated with the input end of the input pipe 13, the water pump 14 is arranged on the input pipe 13, and the output end of the input pipe 13 is communicated with the input end of the water cooling cavity 3; the oil cylinder 1 acts on the telescopic rod 2 to stretch out and draw back, so as to realize corresponding functions, cooling water is filled in the water tank 6, the tank cover 8 is in a closed state at the top end of the water tank 6 under the constraint of the hinge 7, the water pump 14 operates, cooling water in the water tank 6 is output into the water cooling cavity 3 through the input pipe 13, the water cooling cavity 3 acts on the oil cylinder 1 to cool, the cooling water is discharged to the discharge head 5 to fall through the discharge pipe 4, meanwhile, the fan motor 11 operates, is connected through the connecting frame 10, is guided by the fan blades 12 to blow out backwards through the heat dissipation tank 9, acts on cooling water in the descending state of the discharge head 5 in the water tank 6, so that the cooling water is cooled down quickly, the cooling water is acted on high temperature in an active blowing mode, the circulating efficiency is increased, and the reliability is improved.
The water tank is characterized by further comprising a fixing piece 15, a fixing bolt 16, a screwing hand 17 and a screw groove frame 18, wherein the left upper side and the right upper side of the front end of the water tank 6 are respectively connected with the rear end of the screw groove frame 18, the left front side and the right front side of the top end of the tank cover 8 are respectively connected with the bottom end of the fixing piece 15, the fixing bolt 16 is movably arranged in the fixing piece 15, and the screwing hand 17 is connected to the outer side of the fixing bolt 16; after the box cover 8 is closed, the fixing piece 15 corresponds to the screw groove frame 18, and the fixing bolt 16 can be rotated by screwing the screwing hand 17 and screwed into the screw groove frame 18, so that the box cover 8 is closed and fixed, and the stability is improved.
The water tank 6 is characterized by further comprising a filter screen 19 and a handle 20, wherein the filter screen 19 is detachably arranged on the inner side of the water tank 6, and the middle parts of the left side and the right side of the top end of the filter screen 19 are respectively connected with the bottom ends of a group of handles 20; the filter screen 19 is installed in the water tank 6 and is used for filtering and decontaminating cooling water, and the handle 20 is held to take out the filter screen 19 for cleaning, so that convenience is improved.
The water tank 6 is characterized by further comprising a drain valve 21 and a drain head 22, wherein the front lower side of the right end of the water tank 6 is communicated with the inner end of the drain head 22, and the drain head 22 is provided with the drain valve 21; by opening the drain valve 21, the cooling water can be discharged from the drain head 22 via the drain head 22, thereby improving convenience.
The device also comprises an oil cylinder seat 23, wherein the outer end of the lower side of the oil cylinder 1 is connected with the inner end of the oil cylinder seat 23; the oil cylinder 1 can be fixed at the corresponding position through the oil cylinder seat 23, so that the stability is improved.
The novel box cover also comprises a handle 24, and the middle part of the top end of the box cover 8 is connected with the bottom end of the handle 24; the handle 24 is held to facilitate the opening and closing control of the case cover 8, thereby improving convenience.
Example 2
Referring to fig. 1-4, a water-cooled oil cylinder includes an oil cylinder 1 and a telescopic rod 2, wherein an output end of the oil cylinder 1 is slidably connected with the telescopic rod 2, and the water-cooled oil cylinder further includes:
the water cooling mechanism is used for rapid cooling and comprises a water cooling cavity 3, a discharge pipe 4, a discharge head 5, a water tank 6, a hinge 7, a box cover 8, a heat dissipation box 9, a connecting frame 10, a fan motor 11, fan blades 12, an input pipe 13 and a water pump 14, wherein the outer side of an oil cylinder 1 is connected with the inner side of the water cooling cavity 3, the discharge pipe 4 is communicated with the output end of the water cooling cavity 3, the discharge head 5 is communicated with the inner side of the box cover 8, the front side of the bottom end of the box cover 8 is connected with one end of the hinge 7, the other end of the hinge 7 is connected with the rear side of the top end of the water tank 6, the upper part of the front side of the water tank 6 is communicated with the inner side of the heat dissipation box 9, the inner side of the heat dissipation box 9 is connected with a connecting frame 10, the inner side of the connecting frame 10 is connected with a fan motor 11, the output end of the fan motor 11 is connected with the middle part of the front end of the fan blades 12, the output end of the water tank 6 is communicated with the input end of the input pipe 13, the water pump 14 is arranged on the input pipe 13, and the output end of the input pipe 13 is communicated with the input end of the water cooling cavity 3.
The water tank is characterized by further comprising a fixing piece 15, fixing bolts 16, a screwing handle 17 and a screw groove frame 18, wherein the left upper side and the right upper side of the front end of the water tank 6 are respectively connected with the rear end of the screw groove frame 18, the left front side and the right front side of the top end of the tank cover 8 are respectively connected with the bottom end of the fixing piece 15, the fixing bolts 16 are movably arranged in the fixing piece 15, and the screwing handle 17 is connected to the outer side of the fixing bolts 16.
The water tank 6 is characterized by further comprising a filter screen 19 and a handle 20, wherein the filter screen 19 is detachably arranged on the inner side of the water tank 6, and the middle parts of the left side and the right side of the top end of the filter screen 19 are respectively connected with the bottom ends of the group of handles 20.
The water tank 6 is characterized by further comprising a drain valve 21 and a drain head 22, wherein the front lower side of the right end of the water tank 6 is communicated with the inner end of the drain head 22, and the drain head 22 is provided with the drain valve 21.
The hydraulic oil cylinder further comprises an oil cylinder seat 23, and the outer end of the lower side of the oil cylinder 1 is connected with the inner end of the oil cylinder seat 23.
The novel multifunctional electric box further comprises a handle 24, and the middle of the top end of the box cover 8 is connected with the bottom end of the handle 24.
In summary, when the water-cooled oil cylinder is used, the oil cylinder 1 acts on the telescopic rod 2 to stretch and retract, the corresponding function is realized, cooling water is filled in the water tank 6, the tank cover 8 is in a closed state at the top end of the water tank 6 under the constraint of the hinge 7, after the tank cover 8 is closed, the fixing piece 15 corresponds to the screw groove frame 18, the fixing bolt 16 can be rotated by screwing the fixing bolt 17 into the screw groove frame 18, the tank cover 8 is closed and fixed, the water pump 14 operates, the cooling water in the water tank 6 is output into the water-cooled cavity 3 through the input pipe 13, the water-cooled cavity 3 acts on the oil cylinder 1 to cool, the cooling water is discharged from the discharge pipe 4 to the discharge head 5 to fall, meanwhile, the fan motor 11 operates, under the connection of the fan frame 10, the cooling water is blown back through the fan blade 12, acts on the cooling water in the descending state of the discharge head 5 in the water tank 6, the cooling water is cooled down to enable the cooling water to be cooled down quickly, in addition, the filter screen 19 is arranged in the water tank 6, the cooling water is filtered and decontaminated, the filter screen 19 can be taken out by holding the handle 20, the convenience is improved, the drain valve 21 is opened, the cooling water can be discharged from the discharge head 22 through the discharge head 22, the discharge head 22 is discharged from the discharge head 5, the discharge head 23 is lowered through the corresponding position of the water cylinder, the corresponding handle seat is held by the handle seat is convenient, the convenience is improved, and the stability is convenient to be held and the convenience is improved.
The oil cylinder 1, the fan motor 11 and the water pump 14 are known devices directly purchased in the market for those skilled in the art, only the oil cylinder is used, the structure and the function of the oil cylinder are not improved, the oil cylinder 1, the fan motor 11 and the water pump 14 are not described in detail, the oil cylinder 1, the fan motor 11 and the water pump 14 are provided with control switches matched with the oil cylinder, the fan motor 11 and the water pump, the mounting positions of the control switches are selected according to actual use requirements, and the operation control of operators is facilitated.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a water-cooling hydro-cylinder, includes hydro-cylinder (1) and telescopic link (2), and hydro-cylinder (1) output sliding connection has telescopic link (2), its characterized in that still includes:
the water cooling mechanism comprises a water cooling cavity (3), a discharge pipe (4), a discharge head (5), a water tank (6), a hinge (7), a tank cover (8), a heat dissipation tank (9), a connecting frame (10), a fan motor (11), a fan blade (12), an input pipe (13) and a water pump (14), wherein the outer side of an oil cylinder (1) is connected with the inner side of the water cooling cavity (3), the output end of the water cooling cavity (3) is communicated with the discharge pipe (4), the output end of the discharge pipe (4) is communicated with the discharge head (5), the outer side of the discharge head (5) is connected with the inner side of the tank cover (8), the front end of the tank cover (8) is connected with one end of the hinge (7), the other end of the hinge (7) is connected with the rear side of the top end of the water tank (6), the upper part of the front side of the water tank (6) is connected with the inner side of the heat dissipation tank (9), the inner side of the heat dissipation tank (9) is connected with the connecting frame (10), the inner side of the connecting frame (10) is connected with the fan motor (11), the output end of the fan motor (11) is connected with the middle part of the front end of the fan blade (12), the output end of the water tank (6) is connected with the middle part of the front end of the water pump (13), the output end of the water tank (6) is connected with the input pipe (13), the output end of the input pipe (13) is communicated with the input end of the water cooling cavity (3).
2. The water-cooled ram of claim 1, wherein: still include stationary blade (15), fixing bolt (16), twist hand (17) and spiral shell groove frame (18), upper left side of water tank (6) front end is connected with a set of spiral shell groove frame (18) rear end respectively, and the front left side in case lid (8) top is connected with a set of stationary blade (15) bottom respectively with the front right side, and the activity is provided with fixing bolt (16) in stationary blade (15), and fixing bolt (16) outside is connected with twists hand (17).
3. The water-cooled ram of claim 1, wherein: the water tank is characterized by further comprising a filter screen (19) and a handle (20), wherein the filter screen (19) is detachably arranged on the inner side of the water tank (6), and the middle parts of the left side and the right side of the top end of the filter screen (19) are respectively connected with the bottom ends of a group of handles (20).
4. The water-cooled ram of claim 1, wherein: the water tank is characterized by further comprising a drain valve (21) and a drain head (22), wherein the front lower side of the right end of the water tank (6) is communicated with the inner end of the drain head (22), and the drain head (22) is provided with the drain valve (21).
5. The water-cooled ram of claim 1, wherein: the hydraulic oil cylinder further comprises an oil cylinder seat (23), and the outer end of the lower side of the oil cylinder (1) is connected with the inner end of the oil cylinder seat (23).
6. The water-cooled ram of claim 1, wherein: the novel box cover is characterized by further comprising a handle (24), and the middle part of the top end of the box cover (8) is connected with the bottom end of the handle (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321399164.7U CN220204239U (en) | 2023-06-02 | 2023-06-02 | Water-cooling oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321399164.7U CN220204239U (en) | 2023-06-02 | 2023-06-02 | Water-cooling oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220204239U true CN220204239U (en) | 2023-12-19 |
Family
ID=89150655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321399164.7U Active CN220204239U (en) | 2023-06-02 | 2023-06-02 | Water-cooling oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220204239U (en) |
-
2023
- 2023-06-02 CN CN202321399164.7U patent/CN220204239U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213144937U (en) | Oil cylinder special for metallurgy | |
| CN220204239U (en) | Water-cooling oil cylinder | |
| CN113161880A (en) | Bury waterproof heat dissipation type regulator cubicle | |
| CN210218316U (en) | Special hydraulic oil heat dissipation equipment for hydraulic machine | |
| CN211578814U (en) | Battery pack cooling system of pure electric rear-loading type compression garbage truck | |
| CN208236818U (en) | A kind of hydraulic station oil cooling unit | |
| CN218232512U (en) | Water cooling device for blanking hopper of wear-resistant cast ball quenching furnace | |
| CN217901353U (en) | Heat radiation structure for thermal desorption furnace | |
| CN213718533U (en) | Water-cooling radiator for electronic industrial equipment | |
| CN213899484U (en) | Miniature hydraulic device | |
| CN207819679U (en) | A kind of direct current outer rotor brushless motor liquid cooling structure | |
| CN209374626U (en) | A kind of combined battery radiator of electric car | |
| CN214958270U (en) | Box-type substation that new forms of energy utilized | |
| CN214221673U (en) | Hydraulic cylinder with water-cooled heat radiation structure for oil press | |
| CN215719124U (en) | Capacity-expansion cylinder head cover | |
| CN220023403U (en) | Heating element attached radiator | |
| CN211717217U (en) | Box type variable-section cold-heat exchanger | |
| CN211259217U (en) | Heat dissipation assembly of excavator | |
| CN213954044U (en) | Noise reduction type hydraulic oil cylinder | |
| CN221800262U (en) | Integrated multifunctional hydraulic element | |
| CN215991738U (en) | Protection device of electromechanical device | |
| CN212752141U (en) | Special variable frequency power supply | |
| CN215058613U (en) | Hydraulic servo system | |
| CN221374127U (en) | Port hoisting oil cylinder | |
| CN214617895U (en) | Hydraulic control butterfly valve with good heat dissipation performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |