CN210961038U - Explosion-proof chemicals cabinet - Google Patents

Explosion-proof chemicals cabinet Download PDF

Info

Publication number
CN210961038U
CN210961038U CN201921159000.0U CN201921159000U CN210961038U CN 210961038 U CN210961038 U CN 210961038U CN 201921159000 U CN201921159000 U CN 201921159000U CN 210961038 U CN210961038 U CN 210961038U
Authority
CN
China
Prior art keywords
cabinet body
piece
explosion
mounting
air inlet
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
CN201921159000.0U
Other languages
Chinese (zh)
Inventor
罗建超
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.)
Guangzhou District One Technology Co ltd
Original Assignee
Guangzhou District One Technology 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 Guangzhou District One Technology Co ltd filed Critical Guangzhou District One Technology Co ltd
Priority to CN201921159000.0U priority Critical patent/CN210961038U/en
Application granted granted Critical
Publication of CN210961038U publication Critical patent/CN210961038U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Ventilation (AREA)

Abstract

An explosion-proof chemical storage cabinet comprises a cabinet body, an air inlet pipe, an air outlet pipe, a first partition plate and a second partition plate; the cabinet body comprises an inner layer cabinet body, an outer layer cabinet body and a cabinet door; an air-through cabin is arranged between the inner layer cabinet body and the outer layer cabinet body; the air inlet pipe is arranged at the lower end of the ventilation cabin; the air outlet pipe is arranged at the top end of the outer layer cabinet body; the left side and the right side of the inner wall of the inner-layer cabinet body are provided with a first mounting piece and a second mounting piece in parallel; the first partition plate is movably connected with the inner-layer cabinet body through a first mounting piece and a second mounting piece; the second clapboard is clamped and connected with the first clapboard. The second clapboard in the utility model is clamped and connected with the first clapboard, thus increasing the space utilization of the storage cabinet, and leading the placing of chemicals to be more visual and tidy, and facilitating the subsequent use; fix first baffle through the block subassembly, avoided in arrangement and the displacement of the in-process first baffle of looking for the chemical, poor stability causes the chemical collision, damages, has also reduced the degree of difficulty of looking for, has improved work efficiency.

Description

Explosion-proof chemicals cabinet
Technical Field
The utility model relates to a cabinet field especially relates to an explosion-proof chemicals cabinet.
Background
Dangerous chemicals refer to have properties such as poison, corruption, explosion, burning, combustion-supporting, extremely toxic chemicals and other chemicals that have harm to human body, facility, environment, and these dangerous chemicals are generally placed in explosion-proof chemicals cabinet, and traditional explosion-proof chemicals cabinet inside space utilization is low, leads to the seeking and the storage confusion of chemicals easily, and the chemical of cupboard depths gets and puts the difficulty, has reduced work efficiency.
In order to solve the problem, an explosion-proof chemical storage cabinet is provided in the application.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
In order to solve the technical problems existing in the background technology, the utility model provides an explosion-proof chemical storage cabinet, the second clapboard is clamped and connected with the first clapboard, thereby increasing the space utilization of the storage cabinet, and leading the placing of chemicals to be more visual and tidy, and being convenient for the subsequent use; fix first baffle through the block subassembly, avoided in arrangement and the displacement of the in-process first baffle of looking for the chemical, poor stability causes the chemical collision, damages, has also reduced the degree of difficulty of looking for, has improved work efficiency.
(II) technical scheme
In order to solve the problems, the utility model provides an explosion-proof chemical storage cabinet, which comprises a cabinet body, an air inlet pipe, an air outlet pipe, a first clapboard and a second clapboard; the cabinet body comprises an inner layer cabinet body, an outer layer cabinet body and a cabinet door; an air-through cabin is arranged between the inner layer cabinet body and the outer layer cabinet body; the air inlet pipe is arranged at the lower end of the ventilation cabin, the air outlet end of the air inlet pipe is communicated with the inner cavity of the inner-layer cabinet body, and an air inlet machine is arranged in the air inlet pipe; the air outlet pipe is arranged at the top end of the outer-layer cabinet body, the air inlet end of the air outlet pipe is communicated with the ventilation cabin, and an air outlet machine is arranged in the air outlet pipe; the inner-layer cabinet body is provided with a first vent hole, and the left side and the right side of the inner wall of the inner-layer cabinet body are provided with a first mounting piece and a second mounting piece in parallel; grooves are formed in the first mounting piece and the second mounting piece; the groove notches of the first mounting piece and the second mounting piece are oppositely arranged; a plurality of groups of clamping holes are formed in the groove of the first mounting piece; the first partition board is horizontally and transversely arranged in the inner cavity of the inner layer cabinet body, and a connecting piece is arranged on the left side of the first partition board; a clamping component is arranged inside the connecting piece; the clamping component comprises a mounting plate, a clamping piece, a telescopic rod, an elastic piece, a traction rope and a pull ring; the mounting plate is horizontally arranged in the connecting piece along the front-back direction, and a first through hole is formed in the mounting plate; a second through hole which is correspondingly parallel to the first through hole is formed in the left side wall of the connecting piece; the left end of the transversely arranged clamping piece penetrates through the second through hole and is clamped and connected with the clamping hole in the groove of the first mounting piece, and the right end of the clamping piece extends into the connecting piece and is connected with the telescopic rod; the telescopic rod is arranged on the mounting plate; the elastic piece is sleeved outside the telescopic rod, the right end of the elastic piece is connected with the mounting plate, and the left end of the elastic piece is connected with the clamping piece; the rear end of the traction rope is connected with the clamping piece, the middle end of the traction rope penetrates through the first through hole and is positioned on the right side of the mounting plate, and the front end of the traction rope extends out of the connecting piece and is connected with the pull ring; the right side of the first clapboard is provided with a mounting rack; a ball matched with the groove of the second mounting piece is arranged in the mounting frame; the first clapboard is provided with a second vent hole and a clamping groove; a clamping strip matched with the clamping groove is arranged at the bottom end of the second partition plate, the second partition plate is connected to the first partition plate in a clamping mode, and a third through hole is formed in the second partition plate; a third clapboard is arranged at the lower end of the inner layer cabinet body; a third vent hole is formed in the third partition plate, and an adsorption layer is arranged below the third partition plate.
Preferably, the adsorption layer is made of an adsorption cotton material.
Preferably, the air outlet end of the air outlet pipe is provided with a one-way valve.
Preferably, the air inlet end of the air inlet pipe is provided with a dust screen; a moisture absorption piece is arranged between the dust screen and the air inlet machine.
Preferably, the moisture absorbing member is made of a sponge material.
Preferably, the cabinet door is provided with an intelligent door lock.
Preferably, the cabinet body is provided with a microcomputer.
Preferably, the cabinet body is internally provided with a temperature sensing device and a humidity sensing device; the temperature sensing equipment and the humidity sensing equipment are both in communication connection with the microcomputer.
Preferably, the air inlet machine and the air outlet machine are in communication connection with the microcomputer.
Preferably, the cabinet body is made of double-layer steel plates.
The above technical scheme of the utility model has following profitable technological effect:
one, the utility model provides a second baffle passes through the cooperation of draw-in groove and card strip, installs on the suitable position of first baffle, has increased the space utilization to the cabinet, also makes putting of chemicals more directly perceived, clean and tidy, makes things convenient for follow-up use.
Two, the utility model discloses a block subassembly is fixed first baffle, has avoided in the arrangement and has seeked the first baffle displacement of in-process of chemicals, and poor stability causes the chemicals collision, damages, has also reduced the seek degree of difficulty, has improved work efficiency.
Three, the utility model discloses a temperature-sensing equipment and humidity response equipment are to the environment real time monitoring in the cabinet, cooperate first air vent, second air vent and third air vent effect to accelerate the gas in the discharge cabinet, guarantee the environment of chemical storage, also avoid exploding.
Drawings
Fig. 1 is the structural schematic diagram of an explosion-proof chemical storage cabinet provided by the utility model.
Fig. 2 is the utility model provides an explosion-proof chemicals cabinet's cross-sectional view.
Fig. 3 is the structural schematic diagram of the first partition board in the explosion-proof chemical storage cabinet provided by the utility model.
Fig. 4 is the utility model provides an explosion-proof chemicals stores the structural schematic diagram of block subassembly in cabinet.
Fig. 5 is a schematic structural diagram of a first mounting member in an explosion-proof chemical storage cabinet according to the present invention.
Fig. 6 is a schematic structural diagram of a second partition plate in the explosion-proof chemical storage cabinet according to the present invention.
Fig. 7 is a cross-sectional view of an air inlet pipe in an explosion-proof chemical storage cabinet according to the present invention.
Reference numerals:
1. a cabinet body; 2. an air inlet pipe; 3. an air outlet pipe; 4. a first separator; 5. a third partition plate; 6. an outer layer cabinet body; 7. an inner layer cabinet body; 8. a first vent hole; 9. a second separator; 10. a first mounting member; 11. a second mount; 12. a card slot; 13. a second vent hole; 14. clamping the strip; 15. a third through hole; 16. a connecting member; 17. a mounting frame; 18. mounting a plate; 19. a fastener; 20. a telescopic rod; 21. an elastic member; 22. a hauling rope; 23. clamping the assembly; 24. a pull ring; 25. a groove; 26. a clamping hole; 27. a third vent hole; 28. an adsorption layer; 29. an air inlet machine; 30. a moisture absorbing member; 31. a dust screen; 32. a cabinet door; 33. an intelligent door lock; 34. a microcomputer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Fig. 1 is the structural schematic diagram of an explosion-proof chemical storage cabinet provided by the utility model.
Fig. 2 is the utility model provides an explosion-proof chemicals cabinet's cross-sectional view.
Fig. 3 is the structural schematic diagram of the first partition board in the explosion-proof chemical storage cabinet provided by the utility model.
Fig. 4 is the utility model provides an explosion-proof chemicals stores the structural schematic diagram of block subassembly in cabinet.
Fig. 5 is a schematic structural diagram of a first mounting member in an explosion-proof chemical storage cabinet according to the present invention.
Fig. 6 is a schematic structural diagram of a second partition plate in the explosion-proof chemical storage cabinet according to the present invention.
Fig. 7 is a cross-sectional view of an air inlet pipe in an explosion-proof chemical storage cabinet according to the present invention.
As shown in fig. 1-7, the utility model provides an explosion-proof chemical storage cabinet, which comprises a cabinet body 1, an air inlet pipe 2, an air outlet pipe 3, a first partition plate 4 and a second partition plate 9; the cabinet body 1 comprises an inner layer cabinet body 7, an outer layer cabinet body 6 and a cabinet door 32; an air-through cabin is arranged between the inner layer cabinet body 7 and the outer layer cabinet body 6; the air inlet pipe 2 is arranged at the lower end of the ventilation cabin, the air outlet end of the air inlet pipe 2 is communicated with the inner cavity of the inner-layer cabinet body 7, and an air inlet fan 29 is arranged in the air inlet pipe 2; the air outlet pipe 3 is arranged at the top end of the outer layer cabinet body 6, the air inlet end of the air outlet pipe 3 is communicated with the ventilation cabin, and an air outlet machine is arranged in the air outlet pipe 3; a first vent hole 8 is formed in the inner-layer cabinet body 7, and a first mounting piece 10 and a second mounting piece 11 are arranged on the left side and the right side of the inner wall of the inner-layer cabinet body 7 in parallel; grooves 25 are formed in the first mounting part 10 and the second mounting part 11; the notches 25 of the first mounting part 10 and the second mounting part 11 are oppositely arranged; a plurality of groups of clamping holes 26 are arranged in the groove 25 of the first mounting part 10; the first clapboard 4 is horizontally arranged in the inner cavity of the inner layer cabinet body 7, and the left side of the first clapboard 4 is provided with a connecting piece 16; a clamping component 23 is arranged inside the connecting piece 16; the clamping assembly 23 comprises a mounting plate 18, a clamping piece 19, a telescopic rod 20, an elastic piece 21, a traction rope 22 and a pull ring 24; the mounting plate 18 is horizontally arranged in the connecting piece 16 along the front-back direction, and a first through hole is formed in the mounting plate 18; a second through hole which is correspondingly parallel to the first through hole is arranged on the left side wall of the connecting piece 16; the left end of the transversely arranged clamping piece 19 passes through the second through hole and is clamped and connected with the clamping hole 26 on the groove 25 of the first mounting piece 10, and the right end of the clamping piece 19 extends into the connecting piece 16 and is connected with the telescopic rod 20; the telescopic rod 20 is arranged on the mounting plate 18; the elastic piece 21 is sleeved outside the telescopic rod 20, the right end of the elastic piece 21 is connected with the mounting plate 18, and the left end of the elastic piece 21 is connected with the clamping piece 19; the rear end of a pulling rope 22 is connected with the clamping piece 19, the middle end of the pulling rope 22 passes through the first through hole and is positioned on the right side of the mounting plate 18, and the front end of the pulling rope 22 extends out of the connecting piece 16 and is connected with a pull ring 24; the right side of the first clapboard 4 is provided with a mounting rack 17; a ball matched with the groove 25 of the second mounting part 11 is arranged in the mounting frame 17; the first clapboard 4 is provided with a second vent hole 13 and a clamping groove 12; a clamping strip 14 matched with the clamping groove 12 is arranged at the bottom end of the second partition plate 9, the second partition plate 9 is connected to the first partition plate 4 in a clamping mode, and a third through hole 15 is formed in the second partition plate 9; the lower end of the inner-layer cabinet body 7 is provided with a third clapboard 5; the third partition plate 5 is provided with a third vent hole 27, and an adsorption layer 28 is provided below the third partition plate 5.
In an alternative embodiment, the absorbent layer 28 is made of absorbent cotton material.
In an alternative embodiment, the air outlet end of the air outlet pipe 3 is provided with a one-way valve.
In an alternative embodiment, the air inlet end of the air inlet pipe 2 is provided with a dust screen 31; a moisture absorption member 30 is arranged between the dust screen 31 and the air inlet machine 29.
In an alternative embodiment, the moisture absorbing member 30 is made of a sponge material.
In an alternative embodiment, the cabinet door 32 is provided with an intelligent door lock 33.
In an alternative embodiment, the cabinet 1 is provided with a microcomputer 34.
In an alternative embodiment, a temperature sensing device and a humidity sensing device are arranged inside the cabinet body 1; the temperature sensing device and the humidity sensing device are both in communication connection with the microcomputer 34.
In an alternative embodiment, the air inlet fan 29 and the air outlet fan are both in communication with the microcomputer 34.
In an alternative embodiment, the cabinet 1 is made of a double-layer steel plate.
In the utility model, when the storage cabinet is used, the space in the cabinet needs to be planned according to the type and the quantity of chemicals, the second clapboard 9 is arranged on the proper position of the first clapboard 4 through the matching of the clamping groove 12 and the clamping strip 14, the space utilization of the storage cabinet is increased, the placing of the chemicals is more visual and tidy, the subsequent use is convenient, when the first clapboard 4 needs to be taken out for searching and arranging the chemicals, the pull ring 24 is pulled, the clamping piece 19 is pulled by the traction rope 22, the telescopic rod 20 and the elastic piece 21 are compressed, the clamping piece 19 exits from the clamping hole 26, the first clapboard 4 is pulled outwards to the proper position, the pull ring 24 is loosened, under the resilience effect of the telescopic rod 20 and the elastic piece 21, the clamping piece 19 is clamped into the clamping hole 26 again, the first clapboard 4 is fixed, the displacement of the first clapboard 4 in the process of arranging and searching the chemicals is avoided, the stability is poor, the chemicals are collided, damage, also reduced the seeking degree of difficulty, work efficiency is improved, after seeking, with first baffle 4 reset can, the cabinet during operation, temperature-sensing equipment and humidity sensing equipment are to the environment real time monitoring in the cabinet, when temperature and humidity surpassed and set for the threshold value scope, air inlet machine 29 and play fan start, cooperate first air vent 8, second air vent 13 and third air vent 27 effect to accelerate the gas of discharging in the cabinet, guarantee the environment of chemical storage, also avoid exploding.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (10)

1. An explosion-proof chemical storage cabinet is characterized by comprising a cabinet body (1), an air inlet pipe (2), an air outlet pipe (3), a first partition plate (4) and a second partition plate (9);
the cabinet body (1) comprises an inner layer cabinet body (7), an outer layer cabinet body (6) and a cabinet door (32); an air-through cabin is arranged between the inner layer cabinet body (7) and the outer layer cabinet body (6); the air inlet pipe (2) is arranged at the lower end of the ventilation cabin, the air outlet end of the air inlet pipe (2) is communicated with the inner cavity of the inner-layer cabinet body (7), and an air inlet fan (29) is arranged in the air inlet pipe (2); the air outlet pipe (3) is arranged at the top end of the outer layer cabinet body (6), the air inlet end of the air outlet pipe (3) is communicated with the ventilation cabin, and an air outlet machine is arranged in the air outlet pipe (3); a first vent hole (8) is formed in the inner layer cabinet body (7), and a first mounting piece (10) and a second mounting piece (11) are arranged on the left side and the right side of the inner wall of the inner layer cabinet body (7) in parallel; grooves (25) are formed in the first mounting part (10) and the second mounting part (11); the notches of the grooves (25) of the first mounting part (10) and the second mounting part (11) are oppositely arranged; a plurality of groups of clamping holes (26) are arranged in the groove (25) of the first mounting piece (10);
the first clapboard (4) is horizontally arranged in the inner cavity of the inner-layer cabinet body (7), and a connecting piece (16) is arranged at the left side of the first clapboard (4); a clamping component (23) is arranged in the connecting piece (16); the clamping component (23) comprises a mounting plate (18), a clamping piece (19), a telescopic rod (20), an elastic piece (21), a traction rope (22) and a pull ring (24); the mounting plate (18) is horizontally arranged in the connecting piece (16) along the front-back direction, and a first through hole is formed in the mounting plate (18); a second through hole which is correspondingly parallel to the first through hole is arranged on the left side wall of the connecting piece (16); the left end of a transversely arranged clamping piece (19) penetrates through the second through hole and is clamped and connected with a clamping hole (26) on a groove (25) of the first mounting piece (10), and the right end of the clamping piece (19) extends into the connecting piece (16) and is connected with the telescopic rod (20); the telescopic rod (20) is arranged on the mounting plate (18); the elastic piece (21) is sleeved outside the telescopic rod (20), the right end of the elastic piece (21) is connected with the mounting plate (18), and the left end of the elastic piece (21) is connected with the clamping piece (19); the rear end of the traction rope (22) is connected with the clamping piece (19), the middle end of the traction rope (22) penetrates through the first through hole and is positioned on the right side of the mounting plate (18), and the front end of the traction rope (22) extends out of the connecting piece (16) and is connected with the pull ring (24); a mounting rack (17) is arranged on the right side of the first clapboard (4); balls matched with the grooves (25) of the second mounting parts (11) are arranged in the mounting frame (17);
the first clapboard (4) is provided with a second vent hole (13) and a clamping groove (12); a clamping strip (14) matched with the clamping groove (12) is arranged at the bottom end of the second partition plate (9), the second partition plate (9) is clamped and connected to the first partition plate (4), and a third through hole (15) is formed in the second partition plate (9);
a third clapboard (5) is arranged at the lower end of the inner layer cabinet body (7); a third vent hole (27) is arranged on the third clapboard (5), and an adsorption layer (28) is arranged below the third clapboard (5).
2. An explosion-proof chemical storage cabinet as claimed in claim 1, wherein the adsorbent layer (28) is of an adsorbent cotton material.
3. An explosion-proof chemical storage cabinet according to claim 1, characterized in that the air outlet end of the air outlet pipe (3) is provided with a one-way valve.
4. An explosion-proof chemical storage cabinet as defined in claim 1, wherein the air inlet end of the air inlet pipe (2) is provided with a dust screen (31); a moisture absorption piece (30) is arranged between the dust screen (31) and the air inlet machine (29).
5. An explosion-proof chemical storage cabinet as claimed in claim 4, wherein the moisture absorbing member (30) is made of a sponge material.
6. An explosion-proof chemical storage cabinet according to claim 1, characterized in that the cabinet door (32) is provided with an intelligent door lock (33).
7. An explosion-proof chemical storage cabinet according to claim 1, characterized in that the cabinet body (1) is provided with a microcomputer (34).
8. An explosion-proof chemical storage cabinet according to claim 1, characterized in that a temperature sensing device and a humidity sensing device are arranged inside the cabinet body (1); the temperature sensing equipment and the humidity sensing equipment are both in communication connection with a microcomputer (34).
9. An explosion-proof chemical storage cabinet as defined in claim 1, wherein the air inlet fan (29) and the air outlet fan are connected to the microcomputer (34) in communication.
10. An explosion-proof chemical storage cabinet according to claim 1, characterized in that the cabinet body (1) is made of double-layer steel plate.
CN201921159000.0U 2019-07-23 2019-07-23 Explosion-proof chemicals cabinet Expired - Fee Related CN210961038U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921159000.0U CN210961038U (en) 2019-07-23 2019-07-23 Explosion-proof chemicals cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921159000.0U CN210961038U (en) 2019-07-23 2019-07-23 Explosion-proof chemicals cabinet

Publications (1)

Publication Number Publication Date
CN210961038U true CN210961038U (en) 2020-07-10

Family

ID=71445197

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921159000.0U Expired - Fee Related CN210961038U (en) 2019-07-23 2019-07-23 Explosion-proof chemicals cabinet

Country Status (1)

Country Link
CN (1) CN210961038U (en)

Similar Documents

Publication Publication Date Title
CN209029731U (en) A kind of moisture-proof electrical cabinet
CN109671887A (en) A kind of new-energy automobile battery case
CN206806743U (en) One kind can alarm electric radiating cabinet
CN109152285A (en) A kind of power dispatching automation cabinet conducive to heat dissipation
CN207408896U (en) It is a kind of can automatic detecting machine case internal dust alarm computer host box
CN210961038U (en) Explosion-proof chemicals cabinet
CN209823227U (en) Novel indoor electric power cabinet
CN109742660A (en) A kind of Novel seismic-proof heat dissipation electric power cabinet
CN212680567U (en) Dehumidification system for mine power supply and distribution room
CN210556365U (en) Cabinet is accomodate with goods in dust-free workshop
CN209846524U (en) Moisture-proof medicine storage cabinet
CN211238896U (en) Automatic electric appliance cabinet that removes tide
CN210053733U (en) High-efficient radiating green building electrical energy-saving control cabinet
CN210379177U (en) Damp-proof lithium ion battery box
CN209029769U (en) A kind of fire protection electric control device cabinet
CN207367131U (en) A kind of computer hardware communication apparatus of dampproof protection against insects
CN209487954U (en) DC power supply panel
CN216123296U (en) Noise reduction device for safe operation of computer
CN220772248U (en) Temperature and humidity monitoring equipment for data center machine room
CN107359512A (en) A kind of multifunction power cabinet
CN215735212U (en) Cabinet of waterproof computer
CN207087822U (en) A kind of high security electrician tool placement cabinet with expansion bracket
CN218772771U (en) Dampproof coal ash prevention electric cabinet for coal mining machine
CN220341742U (en) Electrical cabinet with dehumidification dampproofing structure
CN211748026U (en) Rural economic data storage device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200710