CN214226804U - Manual operation device for electrical isolation switch - Google Patents

Manual operation device for electrical isolation switch Download PDF

Info

Publication number
CN214226804U
CN214226804U CN202120047732.1U CN202120047732U CN214226804U CN 214226804 U CN214226804 U CN 214226804U CN 202120047732 U CN202120047732 U CN 202120047732U CN 214226804 U CN214226804 U CN 214226804U
Authority
CN
China
Prior art keywords
positioning
rotating shaft
hole
bolt
shell
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
Application number
CN202120047732.1U
Other languages
Chinese (zh)
Inventor
赵九锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Hengfeng Electric Co ltd
Original Assignee
Shandong Hengfeng Electric Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong Hengfeng Electric Co ltd filed Critical Shandong Hengfeng Electric Co ltd
Priority to CN202120047732.1U priority Critical patent/CN214226804U/en
Application granted granted Critical
Publication of CN214226804U publication Critical patent/CN214226804U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Switch Cases, Indication, And Locking (AREA)

Abstract

A manual operation device of an electrical isolation switch mainly comprises a shell, a rotating shaft, a handle and an auxiliary switch, and is characterized by also comprising a positioning bolt, a positioning spring, a positioning sleeve, a protective cover, an end protective cover and an end protective cover blocking plate; the rotating shaft is sequentially provided with a connecting hole, a handle hole, a rotating shaft I-shaped large flat rod and a rotating shaft I-shaped small flat rod; the shell is provided with a positioning pin hole for installing a positioning bolt and a positioning spring, the rotating shaft and the left side of the shell are provided with a sealing ring, and a positioning sleeve is sleeved on a large flat rod of the rotating shaft in a straight shape and is fastened through a fastening bolt and a fastening threaded hole; the positioning sleeve is provided with a positioning hole A and a positioning hole B, and is also provided with a left positioning boss and a right positioning boss which are respectively provided with a left positioning adjusting bolt, a nut, a right positioning adjusting bolt and a nut, and the left side of the auxiliary switch is provided with a connecting disc and a joint. The device has the characteristics of reasonable structural design, good sealing performance, difficult corrosion and damage, accurate positioning, good safety and the like.

Description

Manual operation device for electrical isolation switch
Technical Field
The utility model relates to a power supply system device equipment, especially an electrical isolation switch manually operation device.
Background
An electrical isolation switch is a common power supply system device in a power supply system, and since the electrical isolation switch is usually used on a tower or a pole of a higher power supply system circuit, the electrical isolation switch is generally opened and closed by a manual operating device of the electrical isolation switch installed at the bottom of the tower or the pole, particularly the electrical isolation switch for a railway power supply system. The existing manual operating device for the electric isolating switch is basically composed of a bottom shell, a rotating shaft, a handle and an auxiliary switch, and the brake pad of the electric isolating switch is disconnected and closed by rotating the handle to drive the rotating shaft to rotate by a fixed angle so as to supply power and cut off power of a power supply line. The common manual operation device for the electrical isolating switch is not provided with a protective cover, is influenced by wind, rain, sand and dust weather and corrosive substances, is extremely easy to corrode, and causes the condition that a rotating shaft cannot rotate, is damaged and the like, so that the electrical isolating switch cannot be normally operated. Recently, a manual operation device with a protective cover is also provided, the manual operation device adopts a built-in positioning mechanism, a rotating shaft is arranged in a bottom shell and is provided with a positioning sleeve, the surface of the positioning sleeve is provided with a positioning hole, a positioning assembly is also arranged in the bottom shell, and the rotating shaft is locked or unlocked through a positioning pin shaft.
Disclosure of Invention
The purpose of the utility model is mainly that: aiming at the defects of poor sealing performance, high possibility of corrosion damage, inaccurate positioning, poor safety and poor power supply stability in the conventional manual operating device for the electrical isolating switch, the manual operating device for the electrical isolating switch has the characteristics of reasonable structural design, good sealing performance, low possibility of corrosion damage, accurate positioning, good safety and the like.
The utility model provides a technical scheme that its technical problem adopted is: the manual operation device of the electrical isolating switch mainly comprises a shell, a rotating shaft, a handle and an auxiliary switch, and also comprises a positioning bolt, a positioning spring, a positioning sleeve, a protective cover, an end protective cover and an end protective cover blocking plate; the left end part of the rotating shaft is provided with a connecting hole for fixedly connecting with the transmission rod through a connecting fastening bolt, the middle part of the rotating shaft is provided with a handle hole for inserting and mounting a handle, and the right end part of the rotating shaft is sequentially provided with a rotating shaft, a rotating shaft I-shaped large flat rod and a rotating shaft I-shaped small flat rod; the shell is arranged on the fixed base, a positioning pin hole is formed in the shell for installing a positioning bolt and a positioning spring, a positioning handle is arranged on the positioning bolt, a rotating shaft hole is further formed in the shell, and the rotating shaft penetrates through the middle of the rotating shaft and is in movable fit with the rotating shaft hole; the left sides of the rotating shaft and the shell are provided with a sealing ring, a positioning sleeve is sleeved on a large flat rod of the rotating shaft in the shell, and an inner hole of the positioning sleeve is a large flat hole in a straight shape, is matched with the large flat rod of the rotating shaft in the straight shape, and is fastened through a fastening bolt and a fastening threaded hole; the positioning sleeve is also provided with a positioning hole A and a positioning hole B for inserting or pulling out a positioning bolt; the left side of the auxiliary switch is provided with a connecting disc which is connected and fastened with a joint through a bolt, the joint is provided with a straight-line-shaped small flat hole which is matched with a straight-line-shaped small flat rod of a rotating shaft and is fastened through a connecting screw rod, the shell, the auxiliary switch, the protective cover and the end protective cover are connected into a whole, and an end protective cover blocking plate is arranged on the end protective cover; the positioning sleeve is also provided with a left positioning boss and a right positioning boss, the left positioning boss is provided with a left positioning adjusting bolt and a left positioning adjusting nut through threaded holes, and the right positioning boss is provided with a right positioning adjusting bolt and a right positioning adjusting nut through threaded holes.
The utility model has the advantages that: adopt above-mentioned structure the utility model discloses electrical isolator manually operation device, during the use, the handle inserts the handle hole, after overcoming positioning spring's resistance with location handle pulling location bolt, extracts from locating hole B of position sleeve, makes the pivot anticlockwise rotate 90 through twist gripoThe angle, loosen the positioning handle, the positioning bolt is inserted into the positioning hole A of the positioning sleeve under the action of the positioning spring, and the transmission rod is rotated 90 degrees at the same timeoThe reliable separation of the brake pads of the electrical isolation switch is ensured, the power supply line is cut off, meanwhile, the linear small flat rod of the rotating shaft arranged on the rotating shaft drives the linear small flat hole arranged on the joint to further drive the connecting disc to rotate, so that the auxiliary switch opens and closes the corresponding signal control circuit, and the auxiliary switch is pulled outThe handle is arranged, the rotating shaft and the shell are fixed through the lock for the handle hole, so that misoperation of other people is prevented, and the human safety accident caused by recovering the power supply state is prevented. Through the operation of opposite direction, can ensure that the electrical isolation switch brake lining is reliable closed, realize the power supply line power supply, extract the handle, it is fixed with the casing to pivot through the tool to lock for the handle hole, prevents other people maloperation, causes the power supply line to produce the outage, influences the power supply line normal operating. The linear large flat hole in the positioning sleeve is matched with the linear large flat rod of the rotating shaft, and the linear small flat hole in the left side of the auxiliary switch is matched with the linear small flat rod of the rotating shaft, so that the rotating reliability can be improved, and the sliding rotation is prevented from causing the separation or the improper closing of the electrical isolating switch. The sealing ring is arranged on the left side of the rotating shaft and the shell, the protective cover and the end protective cover are connected into a whole, and the end protective cover plugging plate is arranged on the end protective cover, so that rainwater and dust can be effectively prevented from entering the protective cover, and the protective cover can be cleaned when necessary. The locating sleeve on still be equipped with left location boss, right location boss, install left location adjusting bolt, left location adjusting nut through the screw hole on the boss of left location, install right location adjusting bolt, right location adjusting nut through the screw hole on the boss of right location, when taking place brake lining wearing and tearing, transfer line distortion, pivot and locating sleeve produce spacious moving, the angle of rotation has the error, finely tune through left location adjusting bolt, right location adjusting bolt, can ensure 90 rotations of transfer lineoThe method is accurate, so that the brake pad is reliably opened and closed, normal power supply or power failure of a power supply line is ensured, and personal safety accidents are prevented. The device has the characteristics of reasonable structural design, good sealing performance, difficult corrosion and damage, accurate positioning, good safety and the like.
As the improvement of the utility model, the pivot on be equipped with sealed ring cover to ensure that the sealing washer that pivot and casing left side were equipped with is in among the protection, increase the life of sealing washer, improve sealed effect, the reinforcing prevents that wind and rain from drenching, the ability of sand and dust weather, corrosive substance.
As a further improvement, axis of rotation and rotation shaft hole between be equipped with wear-resisting cover to improve axis of rotation and rotate wear resistance, corrosion resisting property between the shaft hole, alleviate operating resistance, prevent that violent power operation from constituting to damage transmission rod, brake lining.
As a further improvement, the corresponding position of fastening bolt, fastening screw hole on the big flat bar of pivot "style of calligraphy" and the position sleeve is equipped with locating hole C to improve the fastening effect between big flat bar of pivot "style of calligraphy" and the position sleeve, prevent position sleeve endwise slip, ensure that the location is accurate.
Drawings
Fig. 1 is a schematic view of a general sectional structure of a first embodiment of a manual operation device of an electric isolating switch of the present invention;
fig. 2 is a schematic structural view of a position of a positioning sleeve in a closed state of the manual operation device for an electric isolating switch of the present invention shown in fig. 1;
FIG. 3 is a schematic view of the positioning sleeve of FIG. 1 showing the manual operating device of the electrical isolation switch in a separated state;
FIG. 4 is a schematic sectional view of a positioning sleeve of the manual operation device of the electric isolating switch of FIG. 1 according to the first embodiment of the present invention;
fig. 5 is a schematic view of a partial cross-sectional structure of a rotating shaft of a manual operating device of an electrical isolation switch according to a second embodiment of the present invention.
In the figure: 1. a rotating shaft, 2, a shell, 3 a positioning sleeve, 4, a positioning bolt, 5, a positioning spring, 6, a positioning handle, 7, a right positioning adjusting bolt, 8, a right positioning adjusting nut, 9, a sealing ring, 10, a joint, 11, a fastening bolt, 12 a connecting disc, 13, an auxiliary switch, 14, a protective cover, 15, an end protective cover, 16, an end protective cover blocking plate, 17, a handle, 18, a handle hole, 19, a rotating shaft I-shaped large flat rod, 20, a rotating shaft I-shaped small flat rod, 21, a positioning pin hole, 22, a wear-resisting sleeve, 23, an I-shaped large flat hole, 24, an I-shaped small flat hole, 25, a connecting screw rod, 26, a positioning hole A, 27, a positioning hole B, 28, a connecting hole, 29, a right positioning boss, 30, a left positioning boss, 31, a left positioning adjusting nut, 32, a left positioning adjusting bolt, 33, a fastening threaded hole, 34 and a sealing ring sleeve, 35, a rotating shaft, 36 and a rotating shaft hole.
Detailed Description
The following describes the manual operation device of the electrical isolation switch according to the present invention with reference to the accompanying drawings and embodiments. As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the manual operation device of the electrical isolation switch mainly comprises a shell 2, a rotating shaft 1, a handle 17 and an auxiliary switch 13, and further comprises a positioning bolt 4, a positioning spring 5, a positioning sleeve 3, a protective cover 14, an end protective cover 15 and an end protective cover blocking plate 16; the left end part of the rotating shaft 1 is provided with a connecting hole 28 for fixedly connecting with a transmission rod through a connecting fastening bolt, the middle part of the rotating shaft 1 is provided with a handle hole 18 for inserting and installing a handle 17, and the right end part of the rotating shaft 1 is sequentially provided with a rotating shaft 35, a rotating shaft I-shaped large flat rod 19 and a rotating shaft I-shaped small flat rod 20; the shell 2 is arranged on a fixed base, a positioning pin hole 21 is formed in the shell 2 for installing a positioning bolt 4 and a positioning spring 5, a positioning handle 6 is arranged on the positioning bolt 4, a rotating shaft hole 36 is further formed in the shell 2, and a rotating shaft 35 penetrates through the middle of the shell and is in movable fit with the shell; a sealing ring 9 is arranged on the left sides of the rotating shaft 1 and the shell 2, a positioning sleeve 3 is sleeved on a rotating shaft linear large flat rod 19 in the shell 2, an inner hole of the positioning sleeve 3 is a linear large flat hole 23, is matched with the rotating shaft linear large flat rod 19 and is fastened through a fastening bolt 11 and a fastening threaded hole 33; the positioning sleeve 3 is also provided with a positioning hole A26 and a positioning hole B27 for inserting or pulling out the positioning bolt 4; the left side of the auxiliary switch 13 is provided with a connecting disc 12 which is connected and fastened with the joint 10 through a bolt, the joint 10 is provided with a straight-line-shaped small flat hole 24 which is matched with a rotating shaft straight-line-shaped small flat rod 20 and fastened through a connecting screw rod 25, the shell 2, the auxiliary switch 13, the protective cover 14 and the end protective cover 15 are connected into a whole, and the end protective cover 15 is provided with an end protective cover blocking plate 16; the positioning sleeve 3 is further provided with a left positioning boss 30 and a right positioning boss 29, the left positioning boss 30 is provided with a left positioning adjusting bolt 32 and a left positioning adjusting nut 31 through threaded holes, and the right positioning boss 29 is provided with a right positioning adjusting bolt 7 and a right positioning adjusting nut 8 through threaded holes.
Adopt above-mentioned structure this practical electrical isolation switch manual operationWhen the device is used, the handle 17 is inserted into the handle hole 18, the positioning handle 6 pulls the positioning bolt 4 to overcome the resistance of the positioning spring 5, the positioning bolt is pulled out of the positioning hole B27 of the positioning sleeve 3, and the handle 17 is rotated to enable the rotating shaft 1 to rotate 90 degrees anticlockwiseoThe angle is adjusted, the positioning handle 6 is loosened, the positioning bolt 4 is inserted into the positioning hole A26 of the positioning sleeve 3 under the action of the positioning spring 5, and the transmission rod is rotated 90 degrees at the same timeoThe angle ensures the reliable separation of electrical isolation switch brake lining, realizes the power supply line outage, simultaneously, through the little flat bar 20 of pivot "style of calligraphy" that sets up on the pivot 1, drive the little flat hole 24 of "style of calligraphy" that is equipped with on the joint 10, and then drive connection pad 12 and rotate, make auxiliary switch 13 open and close corresponding signal control circuit, extract handle 17, it is fixed with casing 2 with the tool to lock pivot 1 through handle hole 18, prevent other people maloperation, cause and resume the power supply state and produce the personal safety accident. Through the operation of opposite direction, can ensure that the electrical isolation switch brake lining is reliable closed, realize the power supply circuit power supply, extract handle 17, fix pivot 1 and casing 2 through handle hole 18 with the tool to lock, prevent other people maloperation, cause the power supply circuit to produce the outage, influence the power supply circuit normal operating. A linear large flat hole 23 in the positioning sleeve 3 is matched with a linear large flat rod 19 of the rotating shaft, and a linear small flat hole 24 arranged on the left side of the auxiliary switch 13 is matched with a linear small flat rod 20 of the rotating shaft, so that the rotating reliability can be improved, and the phenomenon that the electrical isolating switch is separated or closed in place due to sliding rotation is prevented. The left sides of the rotating shaft 1 and the shell 2 are provided with a sealing ring 9, the shell 2, the protective cover 14 and the end protective cover 15 are connected into a whole, and the end protective cover 15 is provided with an end protective cover blocking plate 16, so that rainwater and dust can be effectively prevented from entering, and cleaning treatment can be performed when necessary. The positioning sleeve 3 is also provided with a left positioning boss 30 and a right positioning boss 29, the left positioning boss 30 is provided with a left positioning adjusting bolt 32 and a left positioning adjusting nut 31 through threaded holes, the right positioning boss 29 is provided with a right positioning adjusting bolt 7 and a right positioning adjusting nut 8 through threaded holes, and when the brake lining is worn, the transmission rod is distorted and deformed, and the rotating shaft and the positioning sleeve move in an open manner, the rotating angle 90oThe angle has errors, the fine adjustment is carried out through the left positioning adjusting bolt 32 and the right positioning adjusting bolt 7,the accurate rotation angle of the transmission rod can be ensured, so that the brake pad is reliably opened and closed, the normal power supply or power failure of a power supply line is ensured, and personal safety accidents are prevented. The device has the characteristics of reasonable structural design, good sealing performance, difficult corrosion and damage, accurate positioning, good safety and the like.
As the improvement of the utility model, as shown in fig. 1 and 5, the sealing ring sleeve 34 is arranged on the rotating shaft 1 to ensure that the sealing ring 9 arranged on the left of the rotating shaft 1 and the shell 2 is in the protection, prolong the service life of the sealing ring 9, improve the sealing effect and enhance the capability of preventing wind, rain, sand, dust and corrosive substances.
As the utility model discloses a further improvement, as shown in fig. 1, be equipped with between axis of rotation 35 and the rotation shaft hole 36 and be equipped with wear-resisting cover 37 to improve axis of rotation 35 and rotate wear resistance, the corrosion protection performance between the shaft hole 36, alleviate operating resistance, prevent that violent power operation from constituting the damage to transmission rod, brake lining.
As the utility model discloses a further improvement, the corresponding position of fastening bolt 11, fastening screw hole 33 on the big flat bar 19 of pivot "style of calligraphy" and the position sleeve 3 is equipped with locating hole C to improve the fastening effect between big flat bar 19 of pivot "style of calligraphy" and the position sleeve 3, prevent 3 endwise slip of position sleeve, ensure that the location is accurate.
Through the above detailed description, the person skilled in the art can easily realize the present invention. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiment, technical personnel in the technical field can make up different technical characteristics wantonly to realize different technical scheme, all fall into the utility model discloses a protection scope.

Claims (5)

1. The utility model provides an electrical isolation switch manual operation device, mainly by casing (2), pivot (1), handle (17), auxiliary switch (13) constitute, its characterized in that: the device also comprises a positioning bolt (4), a positioning spring (5), a positioning sleeve (3), a protective cover (14), an end protective cover (15) and an end protective cover blocking plate (16); the left end part of the rotating shaft (1) is provided with a connecting hole (28) for fixedly connecting with a transmission rod through a connecting fastening bolt, the middle part of the rotating shaft (1) is provided with a handle hole (18) for inserting and installing a handle (17), and the right end part of the rotating shaft (1) is sequentially provided with a rotating shaft (35), a rotating shaft I-shaped large flat rod (19) and a rotating shaft I-shaped small flat rod (20); the shell (2) is arranged on the fixed base, a positioning pin hole (21) is formed in the shell (2) for installing a positioning bolt (4) and a positioning spring (5), a positioning handle (6) is arranged on the positioning bolt (4), a rotating shaft hole (36) is further formed in the shell (2), and a rotating shaft (35) penetrates through the middle of the shell and is movably matched with the shell; a sealing ring (9) is arranged on the left sides of the rotating shaft (1) and the shell (2), a positioning sleeve (3) is sleeved on a rotating shaft linear large flat rod (19) in the shell (2), an inner hole of the positioning sleeve (3) is a linear large flat hole (23) which is matched with the rotating shaft linear large flat rod (19) and is fastened through a fastening bolt (11) and a fastening threaded hole (33); the positioning sleeve (3) is also provided with a positioning hole A (26) and a positioning hole B (27) for inserting or pulling out the positioning bolt (4); the left side of the auxiliary switch (13) is provided with a connecting disc (12) which is connected and fastened with the joint (10) through a bolt, the joint (10) is provided with a straight-line-shaped small flat hole (24) which is matched with a rotating shaft straight-line-shaped small flat rod (20) and fastened through a connecting screw rod (25) to connect the shell (2), the auxiliary switch (13), the protective cover (14) and the end protective cover (15) into a whole, and the end protective cover blocking plate (16) is arranged on the end protective cover (15); the positioning sleeve (3) is further provided with a left positioning boss (30) and a right positioning boss (29), the left positioning boss (30) is provided with a left positioning adjusting bolt (32) and a left positioning adjusting nut (31) through threaded holes, and the right positioning boss (29) is provided with a right positioning adjusting bolt (7) and a right positioning adjusting nut (8) through threaded holes.
2. The electrical isolating switch manual operating device as claimed in claim 1, wherein: and a sealing ring sleeve (34) is arranged on the rotating shaft (1).
3. The electrical isolation switch manual operation device as claimed in claim 1 or 2, wherein: and a wear-resistant sleeve (37) is arranged between the rotating shaft (35) and the rotating shaft hole (36).
4. The electrical isolation switch manual operation device as claimed in claim 1 or 2, wherein: and the positions of the rotating shaft linear large flat rod (19) corresponding to the fastening bolt (11) and the fastening threaded hole (33) are provided with positioning holes C.
5. The electrical isolation switch manual operation device as claimed in claim 3, wherein: and the positions of the rotating shaft linear large flat rod (19) corresponding to the fastening bolt (11) and the fastening threaded hole (33) on the positioning sleeve (3) are provided with positioning holes C.
CN202120047732.1U 2021-01-08 2021-01-08 Manual operation device for electrical isolation switch Expired - Fee Related CN214226804U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120047732.1U CN214226804U (en) 2021-01-08 2021-01-08 Manual operation device for electrical isolation switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120047732.1U CN214226804U (en) 2021-01-08 2021-01-08 Manual operation device for electrical isolation switch

Publications (1)

Publication Number Publication Date
CN214226804U true CN214226804U (en) 2021-09-17

Family

ID=77709432

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120047732.1U Expired - Fee Related CN214226804U (en) 2021-01-08 2021-01-08 Manual operation device for electrical isolation switch

Country Status (1)

Country Link
CN (1) CN214226804U (en)

Similar Documents

Publication Publication Date Title
CN214226804U (en) Manual operation device for electrical isolation switch
CN212098838U (en) Novel walking structure of high-voltage line inspection robot
CN110630119A (en) Ultra-large door lock device
CN104960438A (en) Visual grounding device for rail traffic
CN110957170A (en) Safety interlocking device of switch cabinet back door
CN106703546B (en) Door lock for railway ballast hopper car control room
CN211145537U (en) Pneumatic actuator
CN205017735U (en) Junction box prevents tearing open protection device
CN111342378B (en) Temporary unlocking tool and method for switch cabinet insulation measurement
CN212085533U (en) Electric cabinet safety lock device and heading machine
CN2645216Y (en) Special purpose electric locomotive high-voltage segregation switch
CN209708859U (en) A kind of installation screen transfer strip control device
CN221573735U (en) Power distribution switch with separating mechanism
CN220930311U (en) Valve cover for threaded butt joint
CN111769507B (en) Grounding device of high-voltage iron tower power transmission line and high-voltage iron tower cross arm
CN221546683U (en) Outward opening structure of automobile door lock
CN219387522U (en) Door lock for helicopter
CN213745130U (en) Plate-type float valve core of drilling tool and plate-type float valve of drilling tool
CN111696837B (en) Drop-out fuse connecting structure and drop-out fuse
CN221262256U (en) Elastic blocking piece, connecting structure of operating mechanism and moving contact and circuit breaker
CN221551734U (en) Back door interlocking mechanism of looped netowrk cabinet
CN221040910U (en) Button locking device
CN219529870U (en) Magnetic anti-theft gate valve
CN110848448A (en) Pneumatic actuator
CN219413688U (en) Ball valve with protector

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: 20210917