CN220336766U - Quick opening and closing experiment cabin door - Google Patents

Quick opening and closing experiment cabin door Download PDF

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Publication number
CN220336766U
CN220336766U CN202223348780.8U CN202223348780U CN220336766U CN 220336766 U CN220336766 U CN 220336766U CN 202223348780 U CN202223348780 U CN 202223348780U CN 220336766 U CN220336766 U CN 220336766U
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annular
driving
rotating
plate
arc
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Chinese (zh)
Inventor
梁晓敏
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Guangdong Haolong Medical Technology Co ltd
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Guangzhou Aiweifu Decoration Engineering Co ltd
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Abstract

The utility model relates to the technical field of experimental equipment, in particular to a rapid opening and closing experimental cabin door; the inner ring side of the annular driving plate and the outer ring side of the annular fixing plate are coaxial and are arranged at intervals; the rotating end and the driving end are contracted in an arc shape towards the free end; the rotating end is rotationally connected with the annular fixed plate, and the driving end is in transmission connection with the annular driving plate; the free ends of the plurality of rotating blades can rotate to the central position of the annular fixed plate and block the opening of the experimental cabin, and the clamping parts of the two adjacent rotating blades are correspondingly and hermetically clamped with the second arc limiting plates; the second arc limiting plates of the rotating blades can rotate to be aligned with the inner ring side of the annular fixed plate, and the clamping parts of the two adjacent rotating blades are correspondingly and hermetically clamped with the first arc limiting plates. The utility model has the advantages of quick opening and closing and good sealing effect, can effectively avoid the leakage of harmful gas to the outside and has small occupied space.

Description

Quick opening and closing experiment cabin door
Technical Field
The utility model relates to the technical field of experimental equipment, in particular to a rapid opening and closing experimental cabin door.
Background
Currently, gases are widely used in various laboratories, in the electronics, semiconductor, photovoltaic, solar industries. Gas is delivered from a gas source to production test equipment via a pipeline. Some of these toxic, corrosive, flammable gases are quite dangerous, and once these gas supply systems have failed to operate properly (e.g., due to corrosion or human error) they cause gas leakage; the life safety of personnel, equipment loss and production interruption are threatened, and the hazard is important.
The cabin door structure of the cabin body for the laboratory is mainly a vertical hinged door and a sliding door structure, so that the defects of large occupied space and long opening and closing time exist, and particularly when experimental gas leakage is encountered, the experimental cabin door is required to have quick opening and closing and sealing effects, and leakage points are treated by quickly opening the cabin door or the cabin door is quickly closed to prevent harmful gas leakage; the prior art, such as the utility model patent with the patent number of CN204536301U, discloses a safety experiment cabin, which timely discovers gas leakage through a sensor, and timely controls the opening of the cabin door by a controller, closes a gas valve and gives out a warning, thereby ensuring the safety of experiment personnel; however, only the improvement of the control system achieves the effect of avoiding gas leakage, and the structure of the cabin door is not improved.
For example, the utility model patent with the patent number of CN114791304A discloses a sealed pollutant gas exposure cabin body, which is characterized in that a stepped sealing surface is arranged on a door frame and a cabin door, the area of the stepped sealing surface is large, the contact area of the door frame and the cabin door is increased, the tightness is improved, the gas leakage in the cabin body is reduced, and the requirement of an experiment is met; but only the sealing structure of the cabin door and the door frame is improved, the structure of the cabin door and the door frame adopts a vertical hinged door structure, and the effect of quickly opening and closing the cabin door to avoid gas leakage can not be realized.
Therefore, how to provide a rapid opening and closing experiment hatchdoor is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the rapid opening and closing experiment cabin door, which has rapid opening and closing and good sealing effect, can effectively prevent leakage of harmful gas from diffusing to the outside, and has small occupied space.
The technical scheme for solving the technical problems is as follows:
the rapid opening and closing experiment cabin door comprises an annular driving plate, an annular fixing plate and a plurality of rotating blades; the annular fixing plate is arranged on the outer wall of the opening side of the experimental cabin in a sealing manner, and a plurality of rotating blades are uniformly distributed on the surface of one side of the annular fixing plate, which is far away from the experimental cabin, along the circumferential direction; the inner ring side of the annular driving plate and the outer ring side of the annular fixing plate are coaxial and are arranged at intervals; the rotary blade comprises a rotary end, a driving end and a free end; the rotating end and the driving end are contracted in an arc shape towards the direction of the free end, the rotating end to the free end are inner arc sides and are respectively provided with a first arc limiting plate and a second arc limiting plate along the contraction direction, and the driving end to the free end are outer arc sides and are outwards protruded along the arc shape to form clamping parts; the rotating end is rotationally connected with the annular fixed plate, and the driving end is in transmission connection with the annular driving plate; the free ends of the plurality of rotating blades can rotate to the center of the annular fixed plate and block the opening of the experimental cabin, and the clamping parts of two adjacent rotating blades and the second arc limiting plate are correspondingly and hermetically clamped; the second arc limiting plates of the rotating blades can rotate to be aligned with the inner ring side of the annular fixing plate, and the clamping portions of the adjacent two rotating blades and the first arc limiting plates are correspondingly and hermetically clamped.
The beneficial effects of the utility model are as follows: the experimental cabin body is provided with an opening, and the experimental cabin door is arranged on the opening side of the experimental cabin body; the annular driving plate rotates a certain angle relative to the annular fixed plate to drive the plurality of rotary blades to rotate together, so that the plurality of rotary blades can be rapidly opened or closed; when the rotary blade is closed, the free ends of the rotary blades are intersected at the central position of the annular fixed plate, and the clamping parts of the rotary blades and the second arc limiting plates are sequentially in sealing clamping connection, so that in the closed state, the clamping parts of the sealing clamping connection and the second arc limiting plates form a good sealing effect and have a limiting effect, the sealing is tight, the closing position is accurate, and the phenomenon that the annular driving plate drives the rotary blades to rotate due to a transmission gap is avoided; when the rotary blade is opened, the second arc limiting plates of the rotary blades sequentially correspond to the inner ring of the annular driving plate and enclose a circular opening structure, and the limiting effect is achieved through the clamping connection of the clamping connection parts of the rotary blades and the first arc limiting plates, so that the opening position is ensured to be accurate; the whole device adopts a shutter-like structure, can realize the opening and closing of a plurality of rotary blades by rotating a small angle through the annular driving plate, has small occupied space when being opened or closed, has good sealing effect, and can effectively avoid the leakage of harmful gas to the outside diffusion.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the annular fixed plate is vertically fixedly connected with a plurality of rotating shafts which are in one-to-one correspondence with the rotating blades, and the rotating ends of the rotating blades are in rotating connection with the corresponding rotating shafts; the driving end of the rotary blade is vertically and fixedly connected with a driving shaft, the annular driving plate is provided with a plurality of strip-shaped driving grooves corresponding to the driving shafts one by one, and the driving grooves are in adaptive sliding connection with the corresponding driving shafts and drive the driving end and the free end to rotate around the rotating shafts.
The beneficial effects of adopting the further scheme are as follows: the rotary blades rotate by taking the rotary shaft as a central shaft, and the annular driving plate rotates for a certain angle relative to the annular fixed plate and drives the rotary blades to rotate through the driving grooves so as to realize quick opening or closing.
The device further comprises a motor, wherein the output shaft of the motor is fixedly connected with a first transmission gear, and a second transmission gear is formed on the peripheral side of the annular driving plate; the first transmission gear is meshed with the second transmission gear for transmission and drives the annular driving plate to rotate around the center of the annular driving plate.
The beneficial effects of adopting the further scheme are as follows: a section of arc-shaped forming of the peripheral side of the annular driving plate is provided with a first transmission gear, and the motor drives the annular driving plate to rotate by a certain angle after one-stage speed reduction through the first transmission gear and the second transmission gear.
Further, the motor is a stepper motor and an absolute value encoder is mounted thereon.
The beneficial effects of adopting the further scheme are as follows: the stepping motor and the absolute value encoder are adopted for feedback to realize accurate rotation angle control, and the opening or closing position of the rotating blade is ensured to be accurate.
Further, the inner arc side of the rotary blade is provided with a first assembly groove and a second assembly groove along the contraction direction, the first assembly groove is nested to be provided with the first arc limiting plate, and the second assembly groove is nested to be provided with the second arc limiting plate.
The beneficial effects of adopting the further scheme are as follows: the first arc limiting plate and the second arc limiting plate are adaptively arranged at the corresponding assembling groove positions, and the first arc limiting plate and the second arc limiting plate are integrally and smoothly connected.
Further, the first arc-shaped limiting plate and the second arc-shaped limiting plate are made of elastic metal and are respectively bent to form a first clamping groove and a second clamping groove which extend along the length direction; sealing strips are arranged in the first clamping groove and the second clamping groove, and the sealing strips can be clamped with the clamping parts in a sealing way.
The beneficial effects of adopting the further scheme are as follows: the elastic metal is adopted to make the clamping seal which can ensure the clamping part and the clamping groove to be opened and closed through elastic deformation.
Further, the first clamping groove and the second clamping groove are both T-shaped grooves, and the clamping part is provided with a protruding structure which is in fit and clamping with the T-shaped grooves.
The beneficial effects of adopting the further scheme are as follows: the clamping part is in fit and clamping connection with the T-shaped groove through the protruding structure, so that the limiting effect and the sealing effect are achieved.
Further, the groove depth sizes of the second assembly groove and the second clamping groove are gradually reduced along the shrinkage direction.
The beneficial effects of adopting the further scheme are as follows: the second assembly groove and the corresponding second clamping groove gradually decrease from the direction close to the rotating end to the direction close to the free end, and the wall thickness size of the groove is ensured corresponding to the shrinkage structure of the rotating blade.
Further, the free end of the rotary blade is sleeved with a sealing sleeve, and the sealing sleeve is made of rubber materials.
The beneficial effects of adopting the further scheme are as follows: the free end of at least one of the plurality of rotary vanes is sleeved with a rubber sealing sleeve, so that the sealing effect of the intersection of the plurality of rotary vanes is ensured when the rotary vanes are closed.
Further, the annular fixed plate is far away from the surface of one side of the experiment cabin body and is provided with an annular groove, and a sealing ring is arranged in the annular groove and is in butt joint and sealing with a plurality of rotating blades.
The beneficial effects of adopting the further scheme are as follows: the annular fixed plate realizes the sealing effect with a plurality of rotary blades through the sealing ring in the annular groove.
Through the technical scheme, compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the motor drives the annular driving plate to rotate around the central axis by a certain angle, and the annular driving plate and the annular fixing plate relatively rotate, so that the driving shafts of the plurality of rotating blades slide in the driving grooves on the corresponding annular driving plate to realize the rotation of the plurality of rotating blades, and the rotating of the plurality of rotating blades by a larger angle can be realized through the rotation of the annular driving plate by a smaller angle, so that the experiment cabin door can be rapidly opened or closed by the plurality of rotating blades;
when the rotary blade is in a closed state, the clamping parts of any two adjacent rotary blades in the plurality of rotary blades are clamped with the second arc-shaped limiting plates in a sealing way, the protruding structures of the clamping parts are matched with the second clamping grooves of the second arc-shaped limiting plates, sealing is realized through sealing strips, and the sealing effect and the limiting effect at the closed position are ensured; in the open state, the clamping part of any two adjacent rotating blades in the plurality of rotating blades is clamped with the first arc-shaped limiting plate in a sealing way, the bulge of the clamping part is matched with the first clamping groove of the first arc-shaped limiting plate, and the sealing is realized through the sealing strip, so that the sealing limiting effect at the closed position is ensured; the whole device realizes the quick closing or opening of the experiment cabin body through a plurality of rotary blades, has good sealing effect, and can effectively avoid the leakage of experiment gas.
Drawings
FIG. 1 is a schematic diagram of a structure of the utility model for rapidly opening and closing the closed state of an experimental cabin door;
FIG. 2 is a schematic diagram of the structure of the utility model for rapidly opening and closing the opening state of the experimental cabin door;
FIG. 3 is a schematic diagram of a rotary vane of a rapid opening and closing experiment cabin door;
FIG. 4 is a schematic installation diagram of the rotary vane of the rapid opening and closing experiment cabin door, and the first arc limiting plate and the second arc limiting plate;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a partial enlarged view at B in FIG. 4;
fig. 7 is a front view of the annular fixing plate of the rapid opening and closing experiment cabin door of the present utility model.
In the drawings, the list of components represented by the various numbers is as follows:
1-an annular driving plate; 2-an annular fixing plate; 3-rotating the blades; 4-rotating shaft; 5-driving shaft; 6-a first arc limiting plate; 7-a second arc limiting plate; 8, sealing strips; 11-a drive slot; 21-an annular groove; 31-a rotating end; 32-driving end; 33-free end; 34-a clamping part; 35-a first fitting groove; 36-a second fitting groove; 61-first clamping groove.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
As shown in fig. 1 to 7, the embodiment of the utility model discloses a rapid opening and closing experiment cabin door, which comprises an annular driving plate 1, an annular fixed plate 2 and a plurality of rotating blades 3; the annular fixed plate 2 is hermetically arranged on the outer wall of the opening side of the experimental cabin body, and a plurality of rotating blades 3 are uniformly distributed on the surface of one side of the annular fixed plate, which is far away from the experimental cabin body, along the circumferential direction; the inner ring side of the annular driving plate 1 and the outer ring side of the annular fixing plate 2 are coaxial and are arranged at intervals; the rotary blade 3 comprises a rotary end 31, a drive end 32 and a free end 33; the rotating end 31 and the driving end 32 are contracted in an arc shape towards the free end 33, the rotating end 31 to the free end 33 are inner arc sides and are respectively provided with a first arc limiting plate 6 and a second arc limiting plate 7 along the contraction direction, and the driving end 32 to the free end 33 are outer arc sides and are outwards protruded along the arc shape to form a clamping part 34; the rotating end 31 is rotationally connected with the annular fixed plate 2, and the driving end 32 is in transmission connection with the annular driving plate 1; the free ends 33 of the plurality of rotating blades 3 can rotate to the central position of the annular fixed plate 2 and block the opening of the experimental cabin, and the clamping parts 34 of the two adjacent rotating blades 3 and the second arc limiting plate 7 are correspondingly sealed and clamped; the second arc limiting plates 7 of the plurality of rotating blades 3 can rotate to be aligned with the inner ring side of the annular fixed plate 2, and the clamping portions 34 of the two adjacent rotating blades 3 and the first arc limiting plates 6 are correspondingly and hermetically clamped. The number of the rotating blades 3 is 6-12.
In order to further optimize the technical scheme, as shown in fig. 1, the annular fixed plate 2 is vertically and fixedly connected with a plurality of rotating shafts 4 corresponding to the rotating blades 3 one by one, and the rotating ends 31 of the rotating blades 3 are in rotating connection with the corresponding rotating shafts 4; the driving end 32 of the rotary blade 3 is vertically and fixedly connected with the driving shaft 5, the annular driving plate 1 is provided with a plurality of strip-shaped driving grooves 11 corresponding to the driving shafts 5 one by one, the driving grooves 11 are in adaptive sliding connection with the corresponding driving shafts 5, and the driving end 32 and the free end 33 are driven to rotate around the rotary shaft 4.
In order to further optimize the technical scheme, the device further comprises a motor, wherein a first transmission gear is fixedly connected to an output shaft of the motor, and a second transmission gear is formed on the outer periphery side of the annular driving plate 1; the first transmission gear is meshed with the second transmission gear to drive the annular driving plate 1 to rotate around the center of the annular driving plate.
In order to further optimize the technical scheme, the motor is a stepping motor and is provided with an absolute value encoder.
In order to further optimize the technical scheme, as shown in fig. 3 and 4, the inner arc side of the rotating blade 3 is respectively formed with a first assembling groove 35 and a second assembling groove 36 along the contraction direction, the first assembling groove 35 is nested and provided with a first arc limiting plate 6, and the second assembling groove 36 is nested and provided with a second arc limiting plate 7.
In order to further optimize the technical scheme, as shown in fig. 4, the first arc-shaped limiting plate 6 and the second arc-shaped limiting plate 7 are made of elastic metal and are respectively bent and formed with a first clamping groove 61 and a second clamping groove extending along the length direction; the sealing strips 8 are arranged in the first clamping groove 61 and the second clamping groove, and can be clamped with the clamping part 34 in a sealing way.
In order to further optimize the above technical solution, as shown in fig. 4, the first clamping groove 61 and the second clamping groove are both T-shaped grooves, and the clamping portion 34 has a protruding structure adapted to be clamped with the T-shaped grooves.
To further optimize the above technical solution, the groove depth dimensions of the second fitting groove 36 and the second clamping groove are gradually reduced along the shrinking direction.
In order to further optimize the technical scheme, the free end 33 of the rotary blade 3 is sleeved with a sealing sleeve, and the sealing sleeve is made of rubber materials.
In order to further optimize the technical scheme, as shown in fig. 7, an annular groove 21 is formed in the surface of one side, far away from the experimental cabin, of the annular fixing plate 2, and a sealing ring is installed in the annular groove 21 and is in butt joint and sealing with the plurality of rotary blades 3.
When the rapid opening and closing experiment cabin door is used, the motor is controlled to rotate, the motor output shaft drives the annular driving plate 1 to rotate around the center by a certain angle through the meshing of the first transmission gear and the second transmission gear, at the moment, the driving grooves 11 on the annular driving plate 1 are in one-to-one correspondence with the driving shafts 5 fixedly connected on the rotating blades 3 and slide relatively, and accordingly the driving ends 32 and the free ends 33 of the rotating blades 3 rotate by taking the corresponding rotating shafts 4 as central shafts.
In the closed state, the free ends 33 of the plurality of rotary blades 3 are rotated to the central position of the annular fixed plate 2, so that the plurality of rotary blades 3 block the inner ring opening of the annular fixed plate 2 and the opening of the experimental cabin body; in order to achieve a better sealing effect, the clamping parts 31 of two adjacent rotating blades 3 are in adaptive clamping connection with the second arc-shaped limiting plates 7, sealing strips 8 are arranged in T-shaped structure grooves of the second arc-shaped limiting plates 7, and elastic clamping and sealing of the clamping parts 31 and the second arc-shaped limiting plates 7 are realized through elastic structures of the second arc-shaped limiting plates 7 and the sealing strips 8; in a specific embodiment, the free end 33 of at least one of the plurality of rotating blades 3 is sleeved with a rubber sealing sleeve by means of which sealing at the intersection of the plurality of rotating blades 3 is achieved.
When the rotary blade is in an open state, the second arc limiting plates 7 of the rotary blades 3 correspond to the inner ring openings of the annular fixed plate 2 to form a circular structure, at the moment, the clamping parts 31 of the two adjacent rotary blades 3 and the first arc limiting plates 6 correspond to the clamping limiting parts, the sealing strips 8 are arranged in the first clamping grooves 61 of the T-shaped structure of the first arc limiting plates 6, and the elastic clamping and sealing of the first arc limiting plates 6 and the clamping parts 31 are realized through the elastic structures of the first arc limiting plates 6 and the sealing strips 8.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. The rapid opening and closing experiment cabin door is characterized by comprising an annular driving plate (1), an annular fixed plate (2) and a plurality of rotating blades (3); the annular fixing plate (2) is arranged on the outer wall of the opening side of the experimental cabin in a sealing manner, and a plurality of rotating blades (3) are uniformly distributed on the surface of one side of the annular fixing plate, which is far away from the experimental cabin, along the circumferential direction; the inner ring side of the annular driving plate (1) and the outer ring side of the annular fixing plate (2) are coaxial and are arranged at intervals;
the rotary blade (3) comprises a rotary end (31), a driving end (32) and a free end (33); the rotating end (31) and the driving end (32) are contracted in an arc shape towards the free end (33), the rotating end (31) to the free end (33) are inner arc sides and are respectively provided with a first arc limiting plate (6) and a second arc limiting plate (7) along the contraction direction, and the driving end (32) to the free end (33) are outer arc sides and are outwards protruded along the arc shape to form clamping parts (34); the rotating end (31) is rotationally connected with the annular fixed plate (2), and the driving end (32) is in transmission connection with the annular driving plate (1);
the free ends (33) of the plurality of rotating blades (3) can rotate to the central position of the annular fixed plate (2) and block the opening of the experimental cabin, and the clamping parts (34) of two adjacent rotating blades (3) and the second arc limiting plate (7) are correspondingly and hermetically clamped; the second arc limiting plates (7) of the rotating blades (3) can rotate to be aligned with the inner ring side of the annular fixed plate (2), and the clamping portions (34) of the adjacent two rotating blades (3) and the first arc limiting plates (6) are correspondingly and hermetically clamped.
2. The rapid opening and closing experiment cabin door according to claim 1, wherein the annular fixed plate (2) is vertically fixedly connected with a plurality of rotating shafts (4) which are in one-to-one correspondence with the rotating blades (3), and the rotating ends (31) of the rotating blades (3) are in rotating connection with the corresponding rotating shafts (4); the driving end (32) of the rotating blade (3) is vertically fixedly connected with a driving shaft (5), a plurality of strip-shaped driving grooves (11) which are in one-to-one correspondence with the driving shafts (5) are formed in the annular driving plate (1), and the driving grooves (11) are in adaptive sliding connection with the corresponding driving shafts (5) and drive the driving end (32) and the free end (33) to rotate around the rotating shaft (4).
3. The rapid opening and closing experiment cabin door according to claim 2, further comprising a motor, wherein the output shaft of the motor is fixedly connected with a first transmission gear, and the outer peripheral side of the annular driving plate (1) is provided with a second transmission gear; the first transmission gear is meshed with the second transmission gear for transmission and drives the annular driving plate (1) to rotate around the center of the annular driving plate.
4. A rapid start and stop laboratory hatch door according to claim 3, wherein the motor is a stepper motor and an absolute encoder is mounted thereon.
5. The rapid opening and closing experiment cabin door according to claim 1, wherein a first assembly groove (35) and a second assembly groove (36) are formed on the inner arc side of the rotating blade (3) along the contraction direction, the first assembly groove (35) is nested with the first arc limiting plate (6), and the second assembly groove (36) is nested with the second arc limiting plate (7).
6. The rapid opening and closing experiment cabin door according to claim 5, wherein the first arc limiting plate (6) and the second arc limiting plate (7) are made of elastic metal and are respectively bent and formed with a first clamping groove (61) and a second clamping groove which extend along the length direction; sealing strips (8) are arranged in the first clamping groove (61) and the second clamping groove, and can be clamped with the clamping part (34) in a sealing way.
7. The rapid opening and closing experiment cabin door according to claim 6, wherein the first clamping groove (61) and the second clamping groove are both T-shaped grooves, and the clamping part (34) is provided with a protruding structure which is in fit and clamping connection with the T-shaped grooves.
8. The rapid opening and closing experiment door according to claim 6, wherein the groove depth dimensions of the second fitting groove (36) and the second clamping groove are gradually reduced along the shrinking direction.
9. The rapid opening and closing experiment cabin door according to claim 1, wherein the free end (33) of the rotating blade (3) is sleeved with a sealing sleeve, and the sealing sleeve is made of rubber materials.
10. A rapid opening and closing experiment hatch door according to any of the claims 1-9, characterized in that the annular fixing plate (2) is provided with an annular groove (21) on the surface of one side far away from the experiment hatch body, and a sealing ring is arranged in the annular groove (21) and is in butt sealing with a plurality of rotating blades (3).
CN202223348780.8U 2022-12-13 2022-12-13 Quick opening and closing experiment cabin door Active CN220336766U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223348780.8U CN220336766U (en) 2022-12-13 2022-12-13 Quick opening and closing experiment cabin door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223348780.8U CN220336766U (en) 2022-12-13 2022-12-13 Quick opening and closing experiment cabin door

Publications (1)

Publication Number Publication Date
CN220336766U true CN220336766U (en) 2024-01-12

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ID=89443806

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223348780.8U Active CN220336766U (en) 2022-12-13 2022-12-13 Quick opening and closing experiment cabin door

Country Status (1)

Country Link
CN (1) CN220336766U (en)

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Effective date of registration: 20240426

Address after: 528000, Unit 803, Building 1, Huazhi Science and Technology Innovation Center, No. 28 Sanle East Road, Shunjiang Community, Beijiao Town, Shunde District, Foshan City, Guangdong Province (Residence Declaration)

Patentee after: Guangdong Haolong Medical Technology Co.,Ltd.

Country or region after: China

Address before: Room 606, No. 99 Jiangyan Road, Haizhu District, Guangzhou City, Guangdong Province, 510220 (for office use only)

Patentee before: GUANGZHOU AIWEIFU DECORATION ENGINEERING Co.,Ltd.

Country or region before: China