CN216243069U - High reliability glass tube assembly for safety inspection - Google Patents
High reliability glass tube assembly for safety inspection Download PDFInfo
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- CN216243069U CN216243069U CN202122403959.8U CN202122403959U CN216243069U CN 216243069 U CN216243069 U CN 216243069U CN 202122403959 U CN202122403959 U CN 202122403959U CN 216243069 U CN216243069 U CN 216243069U
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- security inspection
- tube assembly
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- 239000011521 glass Substances 0.000 title claims abstract description 64
- 238000007689 inspection Methods 0.000 title claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 238000013461 design Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application provides a glass tube assembly for high reliability safety inspection belongs to glass tube assembly technical field. The glass tube component for high reliability security inspection comprises a lifting mechanism and a dismounting mechanism, wherein the lifting mechanism comprises a security inspection door, a solenoid and a driving piece, the bottom of the security check door is provided with a groove, the solenoid is rotatably arranged at the top of the security check door, the driving piece is in transmission connection with the screw tube, a stud is installed in the screw tube through threads, the bottom of the stud extends out of the screw tube and is connected with a transverse plate, the disassembly and assembly mechanism comprises vertical rods, a connecting piece and a glass tube component body, the two vertical rods are respectively distributed at the two sides of the bottom of the transverse plate, the bottom of the vertical rod is rotatably provided with a first anchor ear and a second anchor ear which are movably connected through the connecting piece, the end part of the glass tube component body is arranged between the first hoop and the second hoop, and the glass tube component for high-reliability security inspection is convenient to lift and detach.
Description
Technical Field
The application relates to the technical field of glass tube assemblies, in particular to a glass tube assembly for high-reliability security inspection.
Background
The glass tube assembly is one of core parts in security inspection equipment, and is usually installed inside a security inspection door, and the glass tube assembly and other electrical components are used for the security inspection door to detect. The interior bottom at the safety inspection door is usually installed to current glass tube subassembly, the region of its head top when people pass the safety inspection door promptly, and the position that glass tube subassembly was located this moment is higher, when the glass tube subassembly breaks down, often is not convenient for go up and down to the glass tube subassembly, and then makes the maintainer be difficult for overhauing the glass tube subassembly. In addition, the glass tube assembly that has now is mostly fixed mounting setting, and this kind of design is inconvenient to pull down the glass tube assembly and maintains, and the glass tube assembly after the maintenance is also inconvenient security protection again, has certain limitation.
How to invent a high-reliability glass tube assembly for security inspection to improve the problems becomes a problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In order to remedy the above deficiencies, the present application provides a high-reliability glass tube assembly for security inspection, aiming to improve the above-mentioned problems.
The embodiment of the application provides a glass tube assembly for high-reliability security inspection, which comprises a lifting mechanism and a dismounting mechanism, the lifting mechanism comprises a security check door, a solenoid and a driving piece, a groove is arranged at the inner bottom of the security check door, the solenoid is rotatably arranged at the top of the security inspection door, the top of the solenoid extends out of the security inspection door, the driving piece is in transmission connection with the screw tube, a stud is installed in the screw tube through threads, the bottom of the stud extends out of the screw tube and is connected with a transverse plate, the transverse plate is arranged in the groove in a sliding way, the dismounting mechanism comprises a vertical rod, a connecting piece and a glass tube component body, the number of the vertical rods is two, the two vertical rods are respectively distributed on two sides of the bottom of the transverse plate, the bottom of each vertical rod is rotatably provided with a first anchor ear and a second anchor ear, the first hoop and the second hoop are movably connected through the connecting piece, and the end part of the glass tube component body is arranged between the first hoop and the second hoop.
In the implementation process, when the glass tube assembly is broken and needs to be taken down, the driving piece can be started, the screw tube is rotatably arranged at the top of the security door and is in transmission connection with the screw tube, so that the driving piece is started to drive the screw tube to rotate, the screw tube is internally and threadedly provided with the stud, the bottom of the stud extends out of the screw tube and is connected with the transverse plate, the transverse plate is arranged in the groove in a sliding manner, the transverse plate vertically slides in the groove, so that the screw tube rotates to enable the stud to have a rotating trend, the stud at the top of the transverse plate is limited in the vertical direction, and further the stud moves downwards, and further the glass tube assembly body below the stud moves downwards, so that the glass tube assembly body extends out of the groove, so that a maintenance worker can be close to the glass tube assembly body to operate, if the glass tube assembly body needs to be taken down, because the first hoop and the second hoop are movably connected through the connecting piece, so that the first hoop and the second hoop are separated through the connecting piece, thereby facilitating the removal of the glass tube assembly body.
In a specific implementation scheme, the driving member comprises a motor, a first bevel gear and a second bevel gear, the motor is fixedly mounted at the top of the security inspection door, the motor output shaft is connected with the first bevel gear, the second bevel gear is fixedly sleeved outside the solenoid, and the second bevel gear is meshed with the first bevel gear.
In the above-mentioned realization process, the rotation of motor output shaft drives first helical gear and rotates, and then drives the inboard solenoid of second helical gear and rotate, and this kind of design is so that the outside drive solenoid of security door rotates.
In a specific embodiment, a lantern ring is arranged at the top of the security door and corresponds to the position of the coil, and the inner surface of the lantern ring is in contact with the outer surface of the coil.
In the implementation process, the abrasion degree between the screw pipe and the security inspection door during rotation is reduced by the arrangement that the inner surface of the lantern ring is in contact with the outer surface of the screw pipe.
In a specific embodiment, a telescopic rod is arranged between the top of the transverse plate and the safety inspection door, the number of the telescopic rods is two, and the two telescopic rods are symmetrically arranged relative to the transverse plate.
In the above-mentioned realization process, the telescopic link is vertical flexible setting, this kind of design to make the diaphragm carry out vertical removal in the recess, the setting of two telescopic link symmetries makes the diaphragm remain the level throughout when removing.
In a specific embodiment, the telescopic rod comprises a sleeve and an inner rod, the sleeve is fixedly installed inside the security inspection door, the inner rod is arranged inside the sleeve in a sliding mode, and one end of the sleeve penetrates through the security inspection door and is connected with the transverse plate.
In the implementation process, the inner rod slides in the sleeve, so that the stability of the telescopic process of the telescopic rod is improved.
In a specific embodiment, a limiting block is arranged at one end of the inner rod, which is located inside the sleeve, and the limiting block is in sliding sleeve connection with the sleeve.
In the implementation process, when the inner rod moves downwards, the limiting block moves downwards, and after the inner rod moves to a certain distance, the limiting block abuts against the bottom of the inner wall of the sleeve to prevent the transverse plate from moving downwards to cause the inner rod to be separated from the sleeve when the distance is too large.
In a specific implementation scheme, the connecting piece comprises a barrel and a connecting block, the barrel is rotatably installed at the bottom of the first hoop, the connecting block is fixedly installed at the bottom of the second hoop, a screw rod is installed in the barrel through a bolt, and a screw hole matched with the screw rod is formed in the connecting block.
In the above-mentioned realization process, this kind of design adapts to the glass tube subassembly of great diameter, place the glass tube subassembly between first staple bolt and second staple bolt, because the glass tube subassembly pipe diameter is great, it is no longer parallel between first staple bolt and the second staple bolt for first staple bolt and second staple bolt hold the glass tube subassembly tightly jointly, rotate the barrel, make the barrel align the screw, the rotating screw rod makes the screw rod peg graft in the screw again, thereby accomplish the fixed connection between first staple bolt and the second staple bolt.
In a specific embodiment, a handle is provided at one end of the screw.
In the above implementation, the handle is used to rotate the screw.
In a specific embodiment, the top of the barrel is provided with a first hinged block, the bottom of the first hoop is provided with a second hinged block, and the second hinged block is rotatably connected with the first hinged block.
In the implementation process, the second hinge block is rotatably connected with the first hinge block, so that the rotation range between the barrel and the first hoop is enlarged.
In a specific embodiment, the anti-slip mat is arranged on the opposite side of the first hoop and the second hoop.
In the implementation process, the anti-skid pad has anti-skid property, and can increase the friction force when the glass tube assembly is fixed.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a high-reliability glass tube assembly for security inspection according to an embodiment of the present disclosure;
fig. 2 is a front cross-sectional view of a partial structure of a security door provided in an embodiment of the present application;
FIG. 3 is a cross-sectional view of the telescoping pole of FIG. 2 according to an embodiment of the present disclosure;
fig. 4 is a left side view of the second hoop according to the embodiment of the present application.
In the figure: 100-a lifting mechanism; 110-a security inspection door; 111-grooves; 112-a collar; 120-coil; 121-a stud; 122-a transverse plate; 123-telescopic rod; 1231-sleeve; 1232-inner rod; 1233-a stop block; 130-a driver; 131-a motor; 132-a first bevel gear; 133-a second bevel gear; 200-a disassembly and assembly mechanism; 210-a vertical bar; 211-a first hoop; 2111-a second articulation block; 212-a second hoop; 220-a connector; 221-a cylinder body; 2211-screw; 2212-a first hinge block; 222-a connecting block; 2221-screw hole; 230-glass tube assembly body.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1-4, the present application provides a glass tube assembly for high reliability security inspection, which includes a lifting mechanism 100 and a disassembling mechanism 200, wherein the lifting mechanism 100 includes a security inspection door 110, a screw tube 120 and a driving member 130, a groove 111 is formed at the bottom of the security inspection door 110, the screw tube 120 is rotatably installed at the top of the security inspection door 110, the top of the screw tube 120 extends out of the security inspection door 110, the driving member 130 is in transmission connection with the screw tube 120, a stud 121 is installed in the screw tube 120 by internal threads, the bottom of the stud 121 extends out of the screw tube 120 and is connected with a transverse plate 122, the transverse plate 122 is slidably installed in the groove 111, the disassembling mechanism 200 includes a vertical rod 210, connecting piece 220 and glass tube assembly body 230, montant 210 is provided with two, and two montants 210 distribute in diaphragm 122 bottom both sides respectively, and montant 210 bottom is rotated and is provided with first staple bolt 211 and second staple bolt 212, and first staple bolt 211 and second staple bolt 212 pass through connecting piece 220 swing joint, and glass tube assembly body 230 tip sets up between first staple bolt 211 and second staple bolt 212.
In some specific embodiments, the driving member 130 includes a motor 131, a first bevel gear 132 and a second bevel gear 133, the motor 131 is fixedly installed at the top of the security door 110, an output shaft of the motor 131 is connected to the first bevel gear 132, the second bevel gear 133 is fixedly sleeved outside the spiral pipe 120, the second bevel gear 133 is meshed with the first bevel gear 132, the output shaft of the motor 131 rotates to drive the first bevel gear 132 to rotate, and further drive the spiral pipe 120 inside the second bevel gear 133 to rotate, and this design is used to drive the spiral pipe 120 to rotate outside the security door 110.
In some embodiments, a collar 112 is disposed on the top of the security door 110 at a position corresponding to the position of the coil 120, and the inner surface of the collar 112 contacts the outer surface of the coil 120, so that the wear between the coil 120 and the security door 110 when the coil 120 rotates is reduced.
In some specific embodiments, two telescopic rods 123 are arranged between the top of the transverse plate 122 and the security inspection door 110, the two telescopic rods 123 are symmetrically arranged with respect to the transverse plate 122, the telescopic rods 123 are vertically arranged in a telescopic manner, so that the transverse plate 122 can vertically move in the groove 111, and the two telescopic rods 123 are symmetrically arranged, so that the transverse plate 122 can be always kept horizontal when moving.
In some specific embodiments, the telescopic rod 123 includes a sleeve 1231 and an inner rod 1232, the sleeve 1231 is fixedly installed inside the security inspection door 110, the inner rod 1232 is slidably disposed inside the sleeve 1231, one end of the sleeve 1231 penetrates through the security inspection door 110 and is connected to the transverse plate 122, and the inner rod 1232 is slidably disposed on the sleeve 1231, so as to improve the stability of the telescopic rod 123 in the extending and retracting process.
In some specific embodiments, the inner rod 1232 is provided with the limiting block 1233 at the end inside the sleeve 1231, the limiting block 1233 is sleeved with the sleeve 1231 in a sliding manner, when the inner rod 1232 moves downwards, the limiting block 1233 moves downwards, and after the inner rod 1232 moves to a certain distance, the limiting block 1233 abuts against the bottom of the inner wall of the sleeve 1231, so that the inner rod 1232 is prevented from being separated from the sleeve 1231 when the transverse plate 122 moves downwards for a too large distance.
In some specific embodiments, the connecting member 220 includes a cylinder 221 and a connecting block 222, the cylinder 221 is rotatably installed at the bottom of the first anchor ear 211, the connecting block 222 is fixedly installed at the bottom of the second anchor ear 212, a screw 2211 is installed inside the cylinder 221 by a bolt, and a screw hole 2221 matched with the screw 2211 is formed in the connecting block 222, such a design is suitable for a glass tube assembly with a larger diameter, the glass tube assembly is placed between the first anchor ear 211 and the second anchor ear 212, because the glass tube assembly has a larger diameter, the first anchor ear 211 and the second anchor ear 212 are not parallel to each other, so that the first anchor ear 211 and the second anchor ear 212 jointly hold the glass tube assembly tightly, the cylinder 221 is rotated to align the cylinder 221 with the screw hole 2221, and the screw 2211 is rotated to insert into the screw hole 2221, thereby completing the fixed connection between the first anchor ear 211 and the second anchor ear 212.
In some embodiments, the screw 2211 is provided with a handle at one end, which allows for rotation of the screw 2211.
In some specific embodiments, a first hinge block 2212 is disposed on the top of the barrel body 221, a second hinge block 2111 is disposed at the bottom of the first anchor ear 211, the second hinge block 2111 is rotatably connected to the first hinge block 2212, and the second hinge block 2111 is rotatably connected to the first hinge block 2212, so as to expand the rotation range between the barrel body 221 and the first anchor ear 211.
In some specific embodiments, anti-slip pads are disposed on opposite sides of the first anchor ear 211 and the second anchor ear 212, and the anti-slip pads have anti-slip properties, so as to increase the friction force when the glass tube assembly is fixed.
The working principle of the glass tube assembly for high-reliability security inspection is as follows: when the glass tube assembly is broken and needs to be taken down, because the screw tube 120 is rotatably mounted at the top of the security inspection door 110, the driving member 130 is in transmission connection with the screw tube 120, the driving member 130 is started to drive the screw tube 120 to rotate, because the screw bolt 121 is threadedly mounted inside the screw tube 120, the bottom of the screw bolt 121 extends out of the screw tube 120 and is connected with the transverse plate 122, and the transverse plate 122 vertically slides in the groove 111, so that the screw tube 120 rotates to enable the screw bolt 121 to generate a rotation trend, and the screw bolt 121 at the top of the transverse plate 122 is limited in the vertical direction, so that the screw bolt 121 moves downwards, and the glass tube assembly body 230 below the screw bolt 121 moves downwards, so that the glass tube assembly body 230 extends out of the groove 111, so that a maintenance worker can approach the glass tube assembly body 230 to operate, if the glass tube assembly body 230 needs to be taken down, because the first anchor ear 211 and the second anchor ear 212 are movably connected through the connecting member 220, so that the first anchor ear 211 and the second anchor ear 212 are separated through the connecting member 220, thereby facilitating removal of the vial assembly body 230.
It should be noted that the specific model specifications of the security inspection door 110 and the motor 131 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art, so detailed description is omitted.
The power supply of the security door 110 and the motor 131 and the principle thereof will be apparent to those skilled in the art and will not be described in detail herein.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A glass tube assembly for high reliability security inspection is characterized by comprising
The lifting mechanism (100) comprises a security inspection door (110), a solenoid (120) and a driving part (130), a groove (111) is formed in the bottom of the security inspection door (110), the solenoid (120) is rotatably installed at the top of the security inspection door (110), the top of the solenoid (120) extends out of the security inspection door (110), the driving part (130) is in transmission connection with the solenoid (120), a stud (121) is installed in the solenoid (120) in a threaded manner, a transverse plate (122) is connected to the bottom of the stud (121) extending out of the solenoid (120), and the transverse plate (122) is slidably arranged in the groove (111);
dismouting mechanism (200), dismouting mechanism (200) include montant (210), connecting piece (220) and glass tube subassembly body (230), montant (210) are provided with two, two montant (210) distribute respectively in diaphragm (122) bottom both sides, montant (210) bottom is rotated and is provided with first staple bolt (211) and second staple bolt (212), first staple bolt (211) with second staple bolt (212) pass through connecting piece (220) swing joint, glass tube subassembly body (230) tip set up in first staple bolt (211) with between second staple bolt (212).
2. The glass tube assembly for high reliability security inspection according to claim 1, wherein the driving member (130) comprises a motor (131), a first bevel gear (132) and a second bevel gear (133), the motor (131) is fixedly installed at the top of the security inspection door (110), an output shaft of the motor (131) is connected with the first bevel gear (132), the second bevel gear (133) is fixedly sleeved outside the spiral tube (120), and the second bevel gear (133) is engaged with the first bevel gear (132).
3. The glass tube assembly for high reliability security inspection according to claim 2, wherein a collar (112) is disposed at the top of the security inspection door (110) and corresponding to the position of the coil (120), and the inner surface of the collar (112) is in contact with the outer surface of the coil (120).
4. The glass tube assembly for high reliability security inspection according to claim 1, wherein two telescopic rods (123) are arranged between the top of the transverse plate (122) and the security inspection door (110), and the two telescopic rods (123) are symmetrically arranged around the transverse plate (122).
5. The glass tube assembly for high reliability security inspection of claim 4, wherein the telescopic rod (123) comprises a sleeve (1231) and an inner rod (1232), the sleeve (1231) is fixedly installed inside the security inspection door (110), the inner rod (1232) is slidably installed inside the sleeve (1231), and one end of the sleeve (1231) penetrates through the security inspection door (110) and is connected with the transverse plate (122).
6. The glass tube assembly for the high-reliability security inspection of claim 5, wherein a limiting block (1233) is arranged at one end of the inner rod (1232) inside the sleeve (1231), and the limiting block (1233) is slidably sleeved with the sleeve (1231).
7. The glass tube assembly for high-reliability security inspection according to claim 1, wherein the connecting piece (220) comprises a cylinder body (221) and a connecting block (222), the cylinder body (221) is rotatably installed at the bottom of the first hoop (211), the connecting block (222) is fixedly installed at the bottom of the second hoop (212), a screw rod (2211) is installed in the cylinder body (221) through a bolt, and a screw hole (2221) matched with the screw rod (2211) is formed in the connecting block (222).
8. The glass tube assembly for high reliability security inspection according to claim 7, wherein a handle is provided at one end of the screw rod (2211).
9. The glass tube assembly for high reliability security inspection according to claim 7, wherein a first hinge block (2212) is arranged at the top of the cylinder body (221), a second hinge block (2111) is arranged at the bottom of the first hoop (211), and the second hinge block (2111) is rotatably connected with the first hinge block (2212).
10. The glass tube assembly for high reliability security inspection of claim 1, wherein the first anchor ear (211) and the second anchor ear (212) are provided with anti-slip pads on opposite sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122403959.8U CN216243069U (en) | 2021-09-30 | 2021-09-30 | High reliability glass tube assembly for safety inspection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122403959.8U CN216243069U (en) | 2021-09-30 | 2021-09-30 | High reliability glass tube assembly for safety inspection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216243069U true CN216243069U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122403959.8U Expired - Fee Related CN216243069U (en) | 2021-09-30 | 2021-09-30 | High reliability glass tube assembly for safety inspection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216243069U (en) |
-
2021
- 2021-09-30 CN CN202122403959.8U patent/CN216243069U/en not_active Expired - Fee Related
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