CN115263091B - Door lock device and centrifuge - Google Patents
Door lock device and centrifuge Download PDFInfo
- Publication number
- CN115263091B CN115263091B CN202211170271.2A CN202211170271A CN115263091B CN 115263091 B CN115263091 B CN 115263091B CN 202211170271 A CN202211170271 A CN 202211170271A CN 115263091 B CN115263091 B CN 115263091B
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- door lock
- door
- plate
- lock
- movable plate
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- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000012472 biological sample Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/02—Casings; Lids
- B04B7/06—Safety devices ; Regulating
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
- E05B9/08—Fastening locks or fasteners or parts thereof, e.g. the casings of latch-bolt locks or cylinder locks to the wing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B2047/0014—Constructional features of actuators or power transmissions therefor
- E05B2047/0018—Details of actuator transmissions
- E05B2047/002—Geared transmissions
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0084—Key or electric means; Emergency release
- E05B2047/0086—Emergency release, e.g. key or electromagnet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Centrifugal Separators (AREA)
Abstract
The embodiment of the invention provides a door lock device, which comprises a bolt; a door lock fixing plate; the door lock movable plate is connected with the door lock fixing plate through a first shaft; the door lock hook, the transmission gear and the motor are arranged on the door lock movable plate; when the door lock hook is inserted into the lock tongue, the door lock movable plate is rotated around the first shaft, the door lock hook, the transmission gear and the motor are fixed on the door lock movable plate, and the door lock movable plate rotates relative to the door lock fixed plate, so that the door lock hook is withdrawn from the lock tongue. The embodiment of the invention is provided with the door lock fixed plate and the door lock movable plate which can rotate relatively around the first shaft, when a door lock hook is inserted into a lock tongue and needs emergency unlocking, the door lock movable plate is rotated, the door lock hook, the transmission gear and the motor which are fixed on the door lock movable plate rotate relative to the door lock fixed plate and the lock tongue along with the door lock movable plate, so that the door lock hook is withdrawn from the lock tongue to unlock, the force for rotating the door lock movable plate during emergency unlocking depends on the force between the door lock fixed plate and the door lock movable plate, and the emergency unlocking operation is not laborious and is compatible with motors with different specifications.
Description
Technical Field
The invention relates to the technical field of centrifuges, in particular to a door lock device and a centrifuge.
Background
The centrifugal machine is an instrument for separating biological samples, and is widely applied to the fields of life science, medical treatment, chemistry, environmental protection and the like. For safety reasons, the opening of the door of the centrifuge is not allowed when the rotor of the centrifuge is rotating at high speed; under the condition that fragments are splashed or faults occur in the cavity of the centrifuge, the door cover of the centrifuge cannot be easily bounced open. And emergency unlocking of the door cover is required when the motor cannot work normally.
The prior art adopts motor drive's mode to realize door closure locking and unblock, and when the motor can not normally work, the experimenter overcomes the motor self-locking power and opens the door closure through mechanical drive's mode. For a large self-locking force motor, the door cover can be opened only by overcoming the self-locking force of the large motor.
Disclosure of Invention
The embodiment of the invention provides a door lock device, and aims to solve the problem that in the prior art, a large self-locking force motor is labor-consuming to unlock a door cover urgently.
In a first aspect, there is provided a door lock device comprising:
a bolt (1);
a door lock fixing plate (2);
a door lock movable plate (3) connected with the door lock fixing plate (2) through a first shaft (1000);
the door lock hook (4), the transmission gear (6) and the motor (7) are arranged on the door lock movable plate (3);
when the door lock hook (4) is inserted into the bolt (1), the door lock movable plate (3) is rotated around the first shaft (1000), the door lock hook (4), the transmission gear (6) and the motor (7) are fixed on the door lock movable plate (3), and the door lock movable plate (3) rotates relative to the door lock fixing plate (2) so that the door lock hook (4) is withdrawn from the bolt (1).
In a second aspect, a centrifuge is provided, comprising a door cover (8), a chamber (9) and the door locking device described above.
The embodiment of the invention is provided with the door lock fixing plate and the door lock movable plate which can rotate relatively around the first shaft, when a door lock hook is inserted into a bolt and needs emergency unlocking, the door lock movable plate is rotated, the door lock hook, the transmission gear and the motor which are fixed on the door lock movable plate rotate relative to the door lock fixing plate and the bolt along with the door lock movable plate, so that the door lock hook exits the bolt to unlock, the force for rotating the door lock movable plate during emergency unlocking depends on the force between the door lock fixing plate and the door lock movable plate and is irrelevant to the self-locking force of the motor, the emergency unlocking operation is not laborious and the motors with different specifications are compatible.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of a door lock device according to a first embodiment of the present invention;
fig. 2 is an exploded view of a door lock device according to an embodiment of the present invention;
fig. 3 is a schematic view of a door lock fixing plate according to a second embodiment of the present invention;
fig. 4 is a partial schematic view of a movable plate of a door lock according to a second embodiment of the present invention;
FIG. 5 is a schematic view of a pulling plate provided by a second embodiment of the present invention;
fig. 6 is a partial schematic view of a door lock device according to a first embodiment of the present invention in a locked state;
fig. 7 is a schematic view of a door lock device according to a first embodiment of the present invention in an emergency unlock state;
FIG. 8 is a schematic view of a centrifuge provided in the third embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar modules or modules having the same or similar functionality throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
The embodiment of the invention is provided with the door lock fixing plate and the door lock movable plate which can rotate relatively around the first shaft, when a door lock hook is inserted into a bolt and needs emergency unlocking, the door lock movable plate is rotated, the door lock hook, the transmission gear and the motor which are fixed on the door lock movable plate rotate relative to the door lock fixing plate and the bolt along with the door lock movable plate, so that the door lock hook exits the bolt to unlock, the force for rotating the door lock movable plate during emergency unlocking depends on the force between the door lock fixing plate and the door lock movable plate and is irrelevant to the self-locking force of the motor, the emergency unlocking operation is not laborious and the motors with different specifications are compatible.
Example one
Fig. 1 is a schematic view of a door lock device according to a first embodiment of the present invention. Fig. 2 is an exploded view of a door lock device according to an embodiment of the present invention. Fig. 6 is a partial schematic view of a door lock device according to an embodiment of the present invention in a locked state. Fig. 7 is a schematic view of a door lock device in an emergency unlocking state according to an embodiment of the present invention. As shown in fig. 1, 2, 6 and 7, the door lock device includes a locking tongue 1, a door lock fixing plate 2, a door lock moving plate 3, a door lock hook 4, a transmission gear 6 and a motor 7. The door lock fixing plate 2 and the door lock movable plate 3 are sleeved on the first shaft 1000 and connected through the first shaft 1000, and both can rotate around the first shaft 1000. The door lock hook 4, the transmission gear 6 and the motor 7 are arranged on the door lock movable plate 3. In a non-emergency state, the door lock fixing plate 2 and the door lock movable plate 3 are relatively stationary, the lock tongue 1 descends, and the door lock hook 4 and the transmission gear 6 rotate on the door lock movable plate 3 under the driving of the motor 7, so that the door lock hook 4 is inserted into or withdrawn from the lock tongue 1, and locking or unlocking is realized. In an emergency state that the door lock hook 4 is inserted into the bolt 1 but the motor cannot normally work, the door lock fixing plate 2 and the bolt 1 are not moved, the door lock movable plate 3 is rotated around the first shaft 1000, the door lock hook 4, the transmission gear 6 and the motor 7 are fixed on the door lock movable plate 3 at the moment and are integrated with the door lock movable plate 3, and the door lock movable plate 3 rotates relative to the door lock fixing plate 2, so that the door lock hook 4 is withdrawn from the bolt 1, and unlocking is achieved. The structure of the door lock hook 4 and the transmission gear 6 rotating on the door lock movable plate 3 can adopt the existing design, and can also be designed additionally. The structure that the door lock hook 4, the transmission gear 6 and the motor 7 are fixed on the door lock movable plate 3 can be realized by matching grooves, pins and the like, and is not limited herein.
The force for rotating the door lock flap 3 may overcome the friction of the door lock flap 3 on the first shaft 1000, or may be other forces. As an embodiment of the present invention, the door-lock apparatus further includes a spring 5 connecting the door-lock fixing plate 2 and the door-lock moving plate 3. The spring 5 is extended by rotating the door lock flap 3, and the force for rotating the door lock flap 3 is mainly the force for overcoming the contraction of the spring 5, so that the force for rotating the door lock flap 3 can be adjusted by changing the elastic coefficient of the spring 5. Preferably, the door lock fixing plate 2 includes a first pin 23, the door lock moving plate 3 includes a second pin 35, and the spring 5 is hung on the first pin 23 and the second pin 35.
To facilitate the rotation of the door-lock flap 3, the door-lock flap 3 includes an unlocking rope 34 as one embodiment of the present invention. The unlocking rope 34 is connected to the direction in which the door lock flap 3 rotates in an emergency, and the door lock flap 3 is rotated by pulling the unlocking rope 34.
The embodiment of the invention is provided with the door lock fixed plate and the door lock movable plate which can rotate relatively around the first shaft, when a door lock hook is inserted into a lock tongue and needs emergency unlocking, the door lock movable plate is rotated, the door lock hook, the transmission gear and the motor which are fixed on the door lock movable plate rotate relative to the door lock fixed plate and the lock tongue along with the door lock movable plate, so that the door lock hook is withdrawn from the lock tongue to unlock, the force for rotating the door lock movable plate during emergency unlocking depends on the force of a spring between the door lock fixed plate and the door lock movable plate and is unrelated to the self-locking force of the motor, and the emergency unlocking operation is not laborious and is compatible with motors with different specifications.
Example two
In the embodiment of the present invention, the basic structure of the door lock device is the same as that of the first embodiment, and the same reference numerals are used for the same components as those of the first embodiment, including all the features described in the first embodiment, and therefore, the description thereof is omitted.
Fig. 3 is a schematic view of a door lock fixing plate according to a second embodiment of the present invention. Fig. 4 is a partial schematic view of a door lock moving plate according to a second embodiment of the present invention. Fig. 5 is a schematic view of a pulling plate according to a second embodiment of the present invention. With reference to fig. 1 to 7, in the embodiment of the present invention, the door lock movable plate 3 further includes a movable plate body 31, a pulling plate 32, and a clamp spring 33. The pulling plate 32 includes a first groove 321 and a second groove 322. The pulling plate 32 is sleeved on the second shaft 2000, connected to the movable plate body 31 through the second shaft 2000, and can rotate around the second shaft 2000. An unlocking cord 34 is attached to the pulling plate 32. A first end of the circlip 33 is fixed to the pulling plate 32, and a second end of the circlip 33 is fixed to the movable plate body 31. Correspondingly, the door lock fixing plate 2 further includes a fixing plate body 21 and a first screw 22. The first screw 22 is fixed to the fixing plate body 21.
The pulling plate 32 is rotated about the second shaft 2000 in a direction of the fixing plate body 21 by the biasing force of the biasing spring 33, and the first recess 321 of the upper portion thereof hooks the first screw 22 to be fixed to the fixing plate body 21. When the unlocking rope 34 is pulled, the pulling plate 32 rotates about the second shaft 2000 in a direction away from the fixing plate body 21, and the first groove 321 in the upper portion exits the first screw 22.
In a non-emergency state, the door lock hook 4 and the transmission gear 6 are driven by the motor 7 to rotate on the door lock movable plate 3, so that the door lock hook 4 is inserted into the bolt 1. In the process, if the rotation resistance of the door lock hook 4 and the transmission gear 6 is too large due to other parts, the door lock movable plate 3 is reversely forced to rotate, and the door lock hook 4 tends to withdraw from the bolt 1, so that the locking is invalid. In a non-emergency state, the first groove 321 of the pulling plate 32 hooks the first screw 22 on the fixing plate body 21, so that the movable door lock plate 3 and the fixed door lock plate 2 are ensured to be relatively stationary, and the situation that locking is disabled due to overlarge rotation resistance of the door lock hook 4 and the transmission gear 6 is avoided.
In order to limit the rotation angle of the pulling plate 32, the second screw 311 fixed to the movable plate body 31 is inserted into the second groove 322 in the middle of the pulling plate 32. When the pulling plate 32 rotates around the second shaft 2000 relative to the movable plate body 31, the second groove 322 of the pulling plate 32 is limited by the second screw 311. The unlocking rope 34 is pulled to make the first groove 321 of the pulling plate 32 withdraw from the first screw 22, and after the pulling plate 32 rotates to an extreme position in a direction away from the fixed plate body 21, the pulling plate 32 cannot rotate relative to the movable plate body 31 around the second shaft 2000 any more, so that the pulling plate 32 and the movable plate body 31 are integrated; as the unlocking cord 34 is pulled, the movable plate body 31 rotates relative to the fixed plate body 21 about the first axis 1000, so that the door locking hook 4 is withdrawn from the bolt 1. The limit of the second screw 311 to the second groove 322 is limited by the first groove 321 of the pulling plate 32 being able to completely withdraw from the first screw 22.
The process of pulling the unlocking cord 34 to unlock it urgently is roughly divided into two stages. Before the pulling plate 32 is limited, the force for rotating the movable plate 3 of the door lock mainly overcomes the force of the clamp spring 33; after the pulling plate 32 is limited, the force for rotating the door lock moving plate 3 is mainly the force for overcoming the contraction of the spring 5. The force for rotating the door lock movable plate 3 can be adjusted by changing the elastic coefficients of the clamp spring 33 and the spring 5.
In the embodiment of the present invention, the transmission shaft of the transmission gear 6 serves as the first shaft 1000, and also as the rotation shaft of the door latch hook 4. Namely, the door lock fixing plate 2, the door lock movable plate 3 and the door lock hook 4 are all sleeved on the transmission shaft of the transmission gear 6, so that the whole structure is more compact.
The movable plate body 31 is formed by fixedly connecting two metal plates by a positioning shaft, so that the door latch hook 4, the spring 5, the transmission gear 6, the motor 7, the pulling plate 32, the snap spring 33 and other parts are arranged on the movable plate body 31 in a more sufficient space. Accordingly, in order to balance the forces generated when the door lock fixed plate 2 and the door lock movable plate 3 rotate relative to each other about the first shaft 1000, the fixed plate body 21 is formed by fixedly connecting two metal plates by a positioning shaft. The two metal plates of the fixed plate body 21 and the two metal plates of the movable plate body 31 are respectively disposed correspondingly and sleeved on the first shaft 1000. The top of the fixing plate body 21 is provided with a notch for the bolt 1 to enter or exit.
The embodiment of the invention is provided with the door lock fixed plate and the door lock movable plate which can rotate relatively around the first shaft, when a door lock hook is inserted into a lock tongue and needs emergency unlocking, the door lock movable plate is rotated, the door lock hook, the transmission gear and the motor which are fixed on the door lock movable plate rotate relative to the door lock fixed plate and the lock tongue along with the door lock movable plate, so that the door lock hook is withdrawn from the lock tongue to unlock, the force for rotating the door lock movable plate during emergency unlocking depends on the force of a clamp spring and a spring between the door lock fixed plate and the door lock movable plate, and is unrelated to the self-locking force of the motor, and the emergency unlocking operation is not laborious and is compatible with motors with different specifications.
EXAMPLE III
In the embodiment of the present invention, the basic structure of the door lock device is the same as that of the first embodiment or the second embodiment, and the same reference numerals are used for the same components as those of the first embodiment or the second embodiment, including all the features described in the first embodiment and the second embodiment, which are not repeated herein.
The centrifuge provided by the embodiment of the invention comprises a door cover 8, a cavity 9 and the door lock device described in the first embodiment or the second embodiment. FIG. 8 is a schematic view of a centrifuge provided in the third embodiment of the present invention. As shown in fig. 8, the latch bolt 1 is fixed on the door cover 8, and the door lock fixing plate 2 is fixed on the top surface of the cavity 9 by screws. And closing the door cover 8 towards the cavity 9, enabling the bolt 1 and the door lock fixing plate 2 to be located at corresponding positions, and executing the locking or unlocking process together with other parts of the door lock device. One end of the unlocking rope 34 is connected with the door lock movable plate 3, and the other end of the unlocking rope penetrates through the cavity 9 and is positioned outside the cavity 9. In an emergency, the experimenter can open the door 8 by pulling the unlocking rope 34.
The embodiment of the invention is provided with the door lock fixed plate and the door lock movable plate which can rotate relatively around the first shaft, when a door lock hook is inserted into a lock tongue and needs emergency unlocking, the door lock movable plate is rotated, the door lock hook, the transmission gear and the motor which are fixed on the door lock movable plate rotate relative to the door lock fixed plate and the lock tongue along with the door lock movable plate, so that the door lock hook is withdrawn from the lock tongue to unlock, the force for rotating the door lock movable plate during emergency unlocking depends on the force between the door lock fixed plate and the door lock movable plate and is unrelated to the self-locking force of the motor, and the emergency unlocking operation is not laborious and is compatible with motors with different specifications.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A door lock device, comprising:
a bolt (1);
a door lock fixing plate (2);
the door lock movable plate (3) is connected with the door lock fixed plate (2) through a first shaft (1000);
the door lock hook (4), the transmission gear (6) and the motor (7) are arranged on the door lock movable plate (3);
when the door lock hook (4) is inserted into the lock tongue (1), the door lock movable plate (3) is rotated around the first shaft (1000), the door lock hook (4), the transmission gear (6) and the motor (7) are fixed on the door lock movable plate (3), the door lock movable plate (3) rotates relative to the door lock fixing plate (2), the door lock hook (4) fixed on the door lock movable plate (3) rotates relative to the door lock fixing plate (2) and the lock tongue (1) along with the door lock movable plate (3), and the door lock hook (4) is enabled to exit from the lock tongue (1).
2. The door-lock device according to claim 1, further comprising a spring (5) connecting the door-lock fixing plate (2) and the door-lock moving plate (3).
3. Door-locking device according to claim 2, characterized in that said fixed door-lock plate (2) comprises a first pin (23) and said movable door-lock plate (3) comprises a second pin (35), said spring (5) being hung to said first pin (23) and to said second pin (35).
4. The door-lock device according to any one of claims 1 to 3, characterized in that the door-lock moving plate (3) comprises a moving plate body (31), a pulling plate (32) connected to the moving plate body (31) through a second shaft (2000), and the door-lock fixing plate (2) comprises a fixing plate body (21), a first screw (22) fixed to the fixing plate body (21);
the first groove (321) of the pulling plate (32) hooks the first screw (22) to be fixed to the fixing plate body (21).
5. The door-lock device according to claim 4, wherein the second groove (322) of the pulling plate (32) is limited by the second screw (311) of the flap body (31) when the pulling plate (32) rotates relative to the flap body (31) about the second axis (2000).
6. Door-locking device according to claim 4, characterized in that said door-locking mobile plate (3) further comprises a circlip (33); the first end of jump ring (33) is fixed in arm-tie (32), the second end of jump ring (33) is fixed in fly leaf body (31).
7. Door-locking device according to claim 1, characterized in that said door-locking flap (3) further comprises an unlocking cord (34).
8. Door-locking device according to claim 1, characterized in that the transmission shaft of the transmission gear (6) is the first shaft (1000), being the rotation shaft of the door-locking hook (4).
9. A centrifuge, characterized in that it comprises a door cover (8), a chamber (9) and a door locking device according to any of claims 1-8.
10. The centrifuge according to claim 9, characterized in that the locking tongue (1) is fixed to the door cover (8) and the door lock fixing plate (2) is fixed to the top surface of the chamber (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211170271.2A CN115263091B (en) | 2022-09-26 | 2022-09-26 | Door lock device and centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211170271.2A CN115263091B (en) | 2022-09-26 | 2022-09-26 | Door lock device and centrifuge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115263091A CN115263091A (en) | 2022-11-01 |
| CN115263091B true CN115263091B (en) | 2022-12-16 |
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ID=83757628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211170271.2A Active CN115263091B (en) | 2022-09-26 | 2022-09-26 | Door lock device and centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115263091B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5915766A (en) * | 1996-07-20 | 1999-06-29 | Kendro Laboratory Products Gmbh | Locking device |
| CN101513627A (en) * | 2008-02-21 | 2009-08-26 | 热电子Led有限公司 | Cover closure for housings of laboratory devices and the like |
| CN112252849A (en) * | 2020-09-24 | 2021-01-22 | 深圳市瑞沃德生命科技有限公司 | Door lock device and centrifuge |
-
2022
- 2022-09-26 CN CN202211170271.2A patent/CN115263091B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5915766A (en) * | 1996-07-20 | 1999-06-29 | Kendro Laboratory Products Gmbh | Locking device |
| CN101513627A (en) * | 2008-02-21 | 2009-08-26 | 热电子Led有限公司 | Cover closure for housings of laboratory devices and the like |
| CN112252849A (en) * | 2020-09-24 | 2021-01-22 | 深圳市瑞沃德生命科技有限公司 | Door lock device and centrifuge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115263091A (en) | 2022-11-01 |
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Address after: 518057, Room 1901, Building A, Building 7, Shenzhen International Innovation Valley, Dashi Road, Xili Community, Xili Street, Nanshan District, Shenzhen City, Guangdong Province (9th, 19th, 20th, and 9th floors of Building A) Patentee after: Shenzhen Ruiwode Life Technology Co.,Ltd. Country or region after: China Address before: 518057 room 1901, block a, building 9, area C, Wanke Yuncheng phase III, Liuxin 4th Road, Xili community, Xili street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: RWD LIFE SCIENCE Co.,Ltd. Country or region before: China |