CN213141106U - Elevator door panel assembly and elevator door panel sliding block - Google Patents

Elevator door panel assembly and elevator door panel sliding block Download PDF

Info

Publication number
CN213141106U
CN213141106U CN202020995129.1U CN202020995129U CN213141106U CN 213141106 U CN213141106 U CN 213141106U CN 202020995129 U CN202020995129 U CN 202020995129U CN 213141106 U CN213141106 U CN 213141106U
Authority
CN
China
Prior art keywords
elevator door
sliding block
door plate
sill
block body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202020995129.1U
Other languages
Chinese (zh)
Inventor
郝福祥
梁鹏羽
洪向前
潘景
陈声龙
李永浩
郎月
苏庆洋
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.)
Hangzhou Xizi Elevator Engineering Co ltd
Original Assignee
Hangzhou Xizi Elevator Engineering 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 Hangzhou Xizi Elevator Engineering Co ltd filed Critical Hangzhou Xizi Elevator Engineering Co ltd
Priority to CN202020995129.1U priority Critical patent/CN213141106U/en
Application granted granted Critical
Publication of CN213141106U publication Critical patent/CN213141106U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Elevator Door Apparatuses (AREA)

Abstract

The application discloses lift-cabin door plate subassembly and elevator door plant slider belongs to mechanical design technical field. This lift-cabin door plate subassembly includes elevator door plant slider and relative elevator door plant and the sill that sets up from top to bottom, wherein: the elevator door plate sliding block comprises a sliding block body and a brush arranged on the sliding block body; the sliding block body is fixedly arranged at the lower end of the elevator door plate, and the hairbrush is positioned in the sliding groove of the sill; when the elevator door plate is opened and closed to move, the hairbrush moves in the chute of the sill to clean garbage in the chute of the sill. This application sets up the brush on elevator door plant slider, with the brush holding in the spout of sill, when elevator door plant slider moves along with the elevator door plant, realize cleaning the rubbish in the spout, avoided the sill spout in rubbish pile up the more slider card that leads to die, greatly reduced the probability that elevator trouble produced.

Description

Elevator door panel assembly and elevator door panel sliding block
Technical Field
The utility model belongs to the technical field of mechanical design, a lift-cabin door panel subassembly and elevator door plant slider is related to.
Background
In the use scene of elevator, in order to guarantee the smooth and easy of opening and shutting of elevator door plant, will elevator door plant below installation door plant slider again usually to settle the slider in the slot of sill below.
In use, if the rubbish in the sill ditch inslot piles up when more, the slider can die with the rubbish card, leads to a series of elevator trouble such as elevator switch door is unusual, a machine crashes.
SUMMERY OF THE UTILITY MODEL
In order to solve among the prior art because of sill ditch inslot rubbish lead to the problem of a series of elevator trouble such as elevator switch door is unusual, a machine crash easily, this application provides an elevator door panel assembly and elevator door plant slider, technical scheme as follows:
first aspect, this application provides an elevator door plate subassembly, elevator door plate subassembly includes elevator door plant slider and relative elevator door plant and the sill that sets up from top to bottom, wherein:
the elevator door plate sliding block comprises a sliding block body and a brush arranged on the sliding block body;
the sliding block body is fixedly arranged at the lower end of the elevator door plate, and the hairbrush is positioned in the sliding groove of the sill;
when the elevator door plate is opened and closed to move, the hairbrush moves in the chute of the sill to clean garbage in the chute of the sill.
Through set up the brush on elevator door plant slider, with the brush holding in the spout of sill, when elevator door plant slider moves along with the elevator door plant, realize cleaning the rubbish in the spout, avoided the inside rubbish of sill spout to pile up the more slider card that leads to and die, greatly reduced the probability that elevator trouble produced.
Optionally, the number of the elevator door panels is two, the number of the elevator door panel sliding blocks is four, and two elevator door panel sliding blocks are respectively installed at two end parts of the lower end of each elevator door panel; or the elevator door plate is one, the number of the elevator door plate sliding blocks is two, and the elevator door plate sliding blocks are respectively installed at two end parts of the lower end of the elevator door plate.
The elevator door plate sliding blocks are respectively arranged on the two sides of the lower end of each elevator door plate, so that all parts of the sill sliding groove can be cleaned in the whole stroke process of the elevator door plate.
Optionally, a concave slag leakage storage portion is arranged on the bottom surface of the sill sliding groove, and each slag leakage storage portion is at least located on a moving path of one elevator door plate sliding block.
The bottom surface of the groove of the sill sliding groove is provided with the concave slag leaking storage part, so that cleaned garbage can be pushed into the slag leaking storage part, the obstruction of the elevator door plate sliding block in the stroke of the sliding groove is reduced, and the elevator accident probability is reduced.
Optionally, the slag leakage storage part is configured to be detachable; a photoelectric sensor is arranged at a preset height of the inner wall of the slag leakage storage part and/or a gravity sensor is arranged at the bottom of the inner wall of the slag leakage storage part.
Through setting up to the detachable with leaking the sediment storage part, be convenient for to the change of leaking the sediment storage part, perhaps to leaking the clear pouring of rubbish in the sediment storage part, it is convenient to maintain.
The photoelectric sensor can detect whether the garbage in the slag leakage storage part reaches a preset height or not, and alarm prompt is carried out when the garbage in the slag leakage storage part reaches the preset height. Thus, the maintenance personnel can replace the full slag leakage storage part in time.
The weight of the garbage in the slag leakage storage part can be sensed through the gravity sensor, and when the weight of the garbage in the slag leakage storage part reaches a preset weight threshold value, an alarm prompt is given. Thus, maintenance personnel can replace the overweight slag leakage storage part in time.
Optionally, the elevator door panel slider still includes the screw, wherein: the sliding block body is provided with a threaded hole matched with the screw for use, and the screw penetrates through the threaded hole to mount the sliding block body on the elevator door panel; or a strip-shaped hole extending up and down is formed in the sliding block body, and the screw is installed on the elevator door plate through the strip-shaped hole.
The threaded hole is formed in the sliding block body, so that the sliding block of the elevator door plate is more convenient to mount and fix; or, through the bar hole that extends from top to bottom is provided with on the slider body, can change the mounting height of elevator door plant slider, reduce the influence of elevator door plant slider to the butt joint installation between elevator door plant and the sill, treat after elevator door plant and sill butt joint are good, the mounting height of elevator door plant slider is adjusted through the bar hole to with elevator door plant slider holding in the sill spout.
In a second aspect, the application further provides an elevator door plate sliding block, which is used for cleaning a sill sliding groove below an elevator door plate, and comprises a sliding block body and a hairbrush, wherein the hairbrush is installed at the lower end of the sliding block body; the sliding block body is fixedly arranged at the lower end part of the elevator door plate, the hairbrush is contained in a sliding groove of the sill below the elevator door plate, and the hairbrush moves along the sliding groove of the sill when the elevator door plate moves in an opening and closing mode to clean the sliding groove of the sill.
Through set up the brush on elevator door plant slider, with the brush holding in the spout of sill, when elevator door plant slider moves along with the elevator door plant, realize cleaning the rubbish in the spout, avoided the inside rubbish of sill spout to pile up the more slider card that leads to and die, greatly reduced the probability that elevator trouble produced.
Optionally, the elevator door panel sliding block further comprises an elastic part, the elastic part is located at the lower end of the sliding block body, and the brush is mounted on the elastic part.
Through set up the elasticity portion at elevator door plant slider lower extreme, reduce the buffering between elevator door plant and the sill, improve the life of elevator door plant and sill.
Optionally, the elastic part is an eraser.
Alternatively, the brushes may be arranged around the outer circumference of the lower end of the elastic part, or the brushes may be arranged in at least one row at the lower end of the elastic part in a direction perpendicular to the movement direction of the elevator door panel.
The brush is arranged on the periphery of the lower end part of the elastic part, so that the brush can be cleaned more uniformly; or the hairbrush is arranged in the direction perpendicular to the moving direction of the elevator door panel, so that the cleaning area of the hairbrush can be increased, and the cleaning quality is improved.
Optionally, the elevator door panel slider still includes the screw, wherein: the sliding block body is provided with a threaded hole matched with the screw for use, and the screw penetrates through the threaded hole to mount the sliding block body on the elevator door panel; or a strip-shaped hole extending up and down is formed in the sliding block body, and the screw is installed on the elevator door plate through the strip-shaped hole.
The threaded hole is formed in the sliding block body, so that the sliding block of the elevator door plate is more convenient to mount and fix; or, through the bar hole that extends from top to bottom is provided with on the slider body, can change the mounting height of elevator door plant slider, reduce the influence of elevator door plant slider to the butt joint installation between elevator door plant and the sill, treat after elevator door plant and sill butt joint are good, the mounting height of elevator door plant slider is adjusted through the bar hole to with elevator door plant slider holding in the sill spout.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural view of an elevator door panel assembly provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an elevator door plank slider provided in an embodiment of the present invention.
Wherein the reference numbers are as follows:
10. an elevator door panel slide block; 11. a slider body; 12. a brush; 13. an elastic portion; 14. a threaded hole; 20. an elevator door panel; 30. a sill; 31. a chute; 32. a slag leakage storage part.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Fig. 1 is the structural schematic diagram of the lift-cabin door board subassembly that an embodiment of the utility model provides, fig. 2 is the structural schematic diagram of the lift-cabin door board slider that an embodiment of the utility model provides, the lift-cabin door board subassembly that this application provided can include at least: the elevator door panel sliding block 10, the elevator door panel 20 and the sill 30 which are arranged oppositely up and down.
The elevator door panel slide 10 may include a slide body 11 and a brush 12 mounted on the slide body 11.
The slider body 11 is fixedly installed at the lower end of the elevator door panel 20, and the brush 12 is usually located in the sliding groove 31 of the sill 30 in practical use.
When the elevator door panel 20 is opened and closed, the brush 12 moves in the chute 31 of the sill 30 to clean the garbage in the chute 31 of the sill 30.
In a possible implementation manner, in order to realize the cleaning of the dust in the doorsill by the brush 12, the brush 12 may be installed at the lower end of the slider body 11.
In order to reduce the extrusion of the elevator door plank sliding block 10 between the elevator door sill and the sill 30, the elevator door plank sliding block 10 may further include an elastic part 13, the elastic part 13 is located at the lower end of the sliding block body 11, and the brush 12 is installed on the elastic part 13.
The elastic portion 13 is generally made of an elastic material that is not easily deformed, and may be made of, for example, a rubber material.
Thus, the elastic part 13 is arranged at the lower end of the elevator door panel sliding block 10, so that the buffer between the elevator door panel 20 and the sill 30 is reduced, and the service life of the elevator door panel 20 and the sill 30 is prolonged.
In a possible implementation manner, in order to make the cleaning of the brush 12 more uniform and to be able to clean the entire width space of the chute 31 of the sill 30, the brush 12 in the present application may be arranged at the outer periphery of the lower end portion of the elastic portion 13. In this case, the size of the elastic part 13 is generally set according to the width of the sliding slot 31, so that the elastic part 13 can move in the sliding slot 31 to fit the inner wall of the sliding slot 31, and the friction force is small to ensure the smooth opening and closing of the elevator door panel 20.
Alternatively, in another possible implementation, the brushes 12 are arranged in at least one row at the lower end of the elastic part 13 in a direction perpendicular to the movement of the elevator door panel 20. Thus, the brush 12 can be arranged in a direction perpendicular to the moving direction of the elevator door panel 20, the cleaning area of the brush 12 can be increased, and the cleaning quality can be improved.
In order to try the installation of elevator door plant slider 10 down, the elevator door plant slider 10 that this application provided can also include the screw, wherein: the slider body 11 is provided with a threaded hole 14 used in cooperation with a screw, and the screw passes through the threaded hole 14 to mount the slider body 11 on the elevator door panel 20. By arranging the threaded hole 14 on the slider body 11, the elevator door panel slider 10 is more convenient to mount and fix.
Or, be provided with the bar hole that extends from top to bottom on the slider body 11, the screw passes through the bar hole and installs on elevator door plant 20. Through the bar hole that extends from top to bottom that is provided with on slider body 11, can change elevator door plant slider 10's mounting height, reduce the influence of elevator door plant slider 10 to the butt joint installation between elevator door plant 20 and the sill 30, treat after elevator door plant 20 and the sill 30 dock, the mounting height of elevator door plant slider 10 is adjusted through the bar hole to with elevator door plant slider 10 holding in sill 30 spout 31.
In practical application, the elevator can be for the realization mode that two butt joints of opening and shutting, also can be for the realization mode that the one-door opening opened and shut, and use elevator door plant 20 as two fans as the example, the elevator door plant slider 10 that corresponds can be four at least, and an elevator door plant slider 10 is installed respectively to both ends of every elevator door plant 20 lower extreme.
Or, taking the elevator door panel 20 as an example, at least two elevator door panel sliders 10 may be provided, and one elevator door panel slider 10 is respectively installed at both end portions of the lower end of the elevator door panel 20.
Thus, the elevator door panel sliding blocks 10 are respectively arranged on the two sides of the lower end of each elevator door panel 20, so that all parts of the sill sliding groove 31 can be cleaned in the whole stroke process of the elevator door panel 20.
In order to ensure long-term operation of the elevator door plank sliding block 10 with the cleaning function, the groove bottom surface of the sliding groove 31 of the sill 30 can be provided with a concave slag leakage storage part 32, each slag leakage storage part 32 is at least positioned on the moving path of one elevator door plank sliding block 10, therefore, garbage cleaned by each elevator door plank sliding block 10 can be pushed into the slag leakage storage part 32 through which the movement passes, and therefore the garbage can be recovered.
Through being provided with recessed hourglass sediment storage part 32 at sill 30 spout 31's tank bottom surface in this application, can push the rubbish that cleans to leaking sediment storage part 32 in, reduced the hindrance of elevator door plant slider 10 in the stroke of spout 31, reduced elevator accident probability.
Alternatively, the slag leakage storage portion 32 may be configured to be detachable.
The slag leakage storage part 32 is detachably arranged, so that the slag leakage storage part 32 can be conveniently replaced, or garbage in the slag leakage storage part 32 can be cleaned, and the maintenance is convenient.
Further, a photoelectric sensor can be arranged at a preset height of the inner wall of the slag leakage storage part 32, whether the garbage in the slag leakage storage part 32 reaches the preset height or not can be detected through the photoelectric sensor, and an alarm prompt is given when the garbage in the slag leakage storage part 32 reaches the preset height. In this way, maintenance personnel can replace the fuller slag leakage storage portion 32 in a timely manner.
The photoelectric sensor here includes a set of opposing light emitting ends and light receiving ends disposed at a predetermined height of the inner wall of the slag leakage storage portion 32, the light emitting ends being configured to emit light, and the light receiving ends being configured to receive light. After the garbage on the inner wall of the slag leakage storage part 32 reaches the preset height, the garbage can block the light emitted by the light emitting end, so that the light receiving end cannot successfully receive the light, at the moment, the photoelectric sensor generally generates a jump signal, and an alarm prompt is carried out according to the jump signal.
In practical application, the jump signal generated by the photoelectric sensor can be transmitted to the processing module, and the processing module controls the alarm device to give an alarm. The processing module may be a chip, and may be implemented by a software program installed on a computer. However, the software function of performing alarm prompting by using the jump signal belongs to the technology that can be realized by those skilled in the art, and is not described herein again.
Optionally, the bottom end of the inner wall of the slag leakage storage part 32 can be provided with a gravity sensor, the weight of the garbage in the slag leakage storage part 32 can be sensed through the gravity sensor, and when the weight of the garbage in the slag leakage storage part 32 reaches a preset weight threshold value, an alarm is given. In this way, maintenance personnel can more timely slide the overweight slag leakage storage part 32.
In practical application, the inner wall of the slag leakage storage part 32 can be simultaneously provided with the photoelectric sensor and the gravity sensor according to the installation, and the photoelectric sensor and the gravity sensor work together, so that maintenance personnel can replace, maintain and replace the slag leakage storage part 32.
Similarly, the gravity sensor can transmit the sensed gravity information to the processing module in real time, and the processing module controls the alarm device to give an alarm when judging that the weight indicated by the gravity information reaches a preset weight threshold value. The processing module may be a chip, and may be implemented by a software program installed on a computer. However, the software function of performing alarm prompting by using the jump signal belongs to the technology that can be realized by those skilled in the art, and is not described herein again.
The alarm device can be a sound alarm device, an indicator light alarm device, a display screen alarm device and the like, and the application does not limit the specific form of the alarm device.
To sum up, elevator door plant board subassembly and elevator door plant slider that this application provided through set up the brush on elevator door plant slider, with the brush holding in the spout of sill, when elevator door plant slider moves along with the elevator door plant, realize cleaning the rubbish in the spout, avoided the inside rubbish of sill spout to pile up the more slider card that leads to and die, greatly reduced the probability that elevator trouble produced.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims (7)

1. The utility model provides an elevator door plate subassembly, its characterized in that, elevator door plate subassembly includes elevator door plate slider and relative elevator door plate and the sill that sets up from top to bottom, wherein:
the elevator door plate sliding block comprises a sliding block body and a brush arranged on the sliding block body;
the sliding block body is fixedly arranged at the lower end of the elevator door plate, and the hairbrush is positioned in the sliding groove of the sill;
when the elevator door plate moves in an opening and closing mode, the hairbrush moves in the chute of the sill to clean garbage in the chute of the sill;
the bottom surface of the sill sliding groove is provided with a concave slag leakage storage part, and each slag leakage storage part is at least positioned on the moving path of one elevator door plate sliding block; the slag leakage storage part is configured to be detachable; a photoelectric sensor is arranged at a preset height of the inner wall of the slag leakage storage part and/or a gravity sensor is arranged at the bottom of the inner wall of the slag leakage storage part.
2. The elevator door panel assembly of claim 1, wherein the number of the elevator door panels is two, the number of the elevator door panel sliding blocks is four, and one elevator door panel sliding block is respectively installed at two end parts of the lower end of each elevator door panel;
or the elevator door plate is one, the number of the elevator door plate sliding blocks is two, and the elevator door plate sliding blocks are respectively installed at two end parts of the lower end of the elevator door plate.
3. The elevator door panel assembly of claim 1, wherein the elevator door panel slide further comprises a screw, wherein:
the sliding block body is provided with a threaded hole matched with the screw for use, and the screw penetrates through the threaded hole to mount the sliding block body on the elevator door panel; or a strip-shaped hole extending up and down is formed in the sliding block body, and the screw is installed on the elevator door plate through the strip-shaped hole.
4. The elevator door plate sliding block is used for cleaning a sill sliding groove below an elevator door plate and is characterized by comprising a sliding block body and a hairbrush, wherein the hairbrush is arranged at the lower end of the sliding block body; the sliding block body is fixedly arranged at the lower end part of the elevator door plate, the hairbrush is accommodated in a sliding groove of the sill below the elevator door plate, and the hairbrush moves along the sliding groove of the sill when the elevator door plate moves in an opening and closing mode to clean the sliding groove of the sill;
the elevator door plate sliding block further comprises an elastic part, the elastic part is located at the lower end of the sliding block body, and the hairbrush is installed on the elastic part.
5. The elevator door plank slider of claim 4, wherein said resilient portion is rubber.
6. The elevator door plank slider of claim 4, wherein said brushes are arranged around the outer circumference of the lower end of said elastic portion, or said brushes are arranged in at least one row at the lower end of the elastic portion in a direction perpendicular to the direction of movement of said elevator door plank.
7. The elevator door plank slider of claim 4, further comprising a screw, wherein:
the sliding block body is provided with a threaded hole matched with the screw for use, and the screw penetrates through the threaded hole to mount the sliding block body on the elevator door panel; or a strip-shaped hole extending up and down is formed in the sliding block body, and the screw is installed on the elevator door plate through the strip-shaped hole.
CN202020995129.1U 2020-06-03 2020-06-03 Elevator door panel assembly and elevator door panel sliding block Active CN213141106U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020995129.1U CN213141106U (en) 2020-06-03 2020-06-03 Elevator door panel assembly and elevator door panel sliding block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020995129.1U CN213141106U (en) 2020-06-03 2020-06-03 Elevator door panel assembly and elevator door panel sliding block

Publications (1)

Publication Number Publication Date
CN213141106U true CN213141106U (en) 2021-05-07

Family

ID=75725384

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020995129.1U Active CN213141106U (en) 2020-06-03 2020-06-03 Elevator door panel assembly and elevator door panel sliding block

Country Status (1)

Country Link
CN (1) CN213141106U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115477218A (en) * 2022-10-17 2022-12-16 苏州和阳智能制造股份有限公司 Sliding block structure for door plate of hall car door for elevator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115477218A (en) * 2022-10-17 2022-12-16 苏州和阳智能制造股份有限公司 Sliding block structure for door plate of hall car door for elevator
CN115477218B (en) * 2022-10-17 2023-11-03 苏州和阳智能制造股份有限公司 Hoistway door plate sliding block structure for elevator

Similar Documents

Publication Publication Date Title
CN213141106U (en) Elevator door panel assembly and elevator door panel sliding block
CN109120822B (en) Automatic cleaning monitoring camera based on Internet of things
CN108253478B (en) Movable part lifting mechanism of range hood and range hood using same
CN104275594B (en) A kind of buffer hinge shift arm automatic assembly line
CN207329617U (en) Device for detecting belt tearing and belt tearing detecting system
CN208784603U (en) A kind of sweeping robot dirt box weight-measuring device
CN116509266A (en) Control method and device for cleaning device and storage medium
CN111469585B (en) Teaching equipment
CN205353581U (en) Processing case
CN101146163A (en) Scanning module with cleaning function of scanning window
CN215341181U (en) Fingerprint punched-card machine with initiative clean function
CN215016795U (en) Intelligence robot of sweeping floor with anticollision function
CN210169966U (en) Floor sweeping robot
CN112102525B (en) Fingerprint lock management system based on mobile APP terminal
CN205309902U (en) To error -correcting device in work piece height
CN211140675U (en) Magnet apron feed bin mechanism
CN214525934U (en) Accurately-thrown garbage classification box
CN107920225A (en) Monitor with cleaning function
CN111214180A (en) Floor sweeping robot
CN106027842A (en) High-speed shooting instrument
CN207139114U (en) A kind of production engineering plastics PC plate laser printer of waste material cleaning
CN219831738U (en) Industrial control all-in-one machine
CN212382580U (en) Self-moving cleaning device
CN114850076B (en) Camera protection box of color sorter
CN217985748U (en) Network security-based detection machine box

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant