CN210577348U - Vehicle-mounted mobile substation - Google Patents
Vehicle-mounted mobile substation Download PDFInfo
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- CN210577348U CN210577348U CN201921969884.6U CN201921969884U CN210577348U CN 210577348 U CN210577348 U CN 210577348U CN 201921969884 U CN201921969884 U CN 201921969884U CN 210577348 U CN210577348 U CN 210577348U
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Abstract
The utility model discloses a vehicle-mounted mobile substation, when passing through the road surface, the distance between the third phase of a voltage measuring device and the second phase of the voltage measuring device is adjusted to be suitable for the transportation situation, when the vehicle-mounted mobile substation is needed to be used, the distance between the third phase of the voltage measuring device and the second phase of the voltage measuring device is adjusted to ensure that the distance between the third phase of the voltage measuring device and the second phase is at the insulation distance; similarly, when the vehicle-mounted mobile substation is required to be used, the distance between the third phase of the lightning arrester and the second phase of the lightning arrester is adjusted to enable the distance between the third phase of the lightning arrester and the second phase of the lightning arrester to be at the insulation distance. Can know from the above-mentioned description, adopt the utility model discloses an on-vehicle mobile substation removes the in-process and does not need all dismantlements, just can reach the purpose of transportation, has reduced cost of transportation and installation cost.
Description
Technical Field
The utility model relates to a high-tension apparatus technical field, more specifically say, relate to an on-vehicle mobile substation.
Background
At present, because of the influence of road width limitation, especially voltage measurement device and arrester in the vehicular mobile substation, because in the use, must reach insulating distance just can normal use, and often this insulating distance has surpassed the width of frame, consequently, need all dismantle voltage measurement device and arrester in the transportation, after arriving the destination, the substation equipment needs the installation. The installation and the disassembly process both need large-scale equipment such as cranes, and the process is time-consuming and labor-consuming. The electrical equipment needs to be installed and disassembled under the guidance of professional personnel, and is also labor waste.
Therefore, how to reduce the transportation cost of the vehicle-mounted mobile substation is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to solve the technical problem how to reduce the cost of transportation of on-vehicle mobile substation, for this reason, the utility model provides an on-vehicle mobile substation.
In order to achieve the above object, the utility model provides a following technical scheme:
an onboard mobile substation comprising: the lightning arrester comprises a high-voltage transformer car and a medium-voltage transformer car connected with the high-voltage transformer car, wherein a voltage measuring device and a lightning arrester in the high-voltage transformer car are independently arranged on a frame;
a first phase of the voltage measuring device, a second phase of the voltage measuring device and a third phase of the voltage measuring device are arranged along the width direction of the vehicle frame, the distance between the first phase of the voltage measuring device and the second phase of the voltage measuring device is adjustably arranged on the vehicle frame, and the distance between the third phase of the voltage measuring device and the second phase of the voltage measuring device is adjustably arranged on the vehicle frame;
the first phase of the lightning arrester, the second phase of the lightning arrester and the third phase of the lightning arrester are arranged along the width direction of the frame, the distance between the first phase of the lightning arrester and the second phase of the lightning arrester is arranged on the frame in an adjustable mode, and the distance between the third phase of the lightning arrester and the second phase of the lightning arrester is arranged on the frame in an adjustable mode.
The utility model discloses in one of them embodiment, voltage measuring device's first phase sets up through the first support on the frame, voltage measuring device's second phase sets up through the second support on the frame, voltage measuring device's third phase sets up through the third support on the frame.
The utility model discloses in one of them embodiment, first support includes that the bottom is fixed first support on the frame extends to second support outside the frame sets up the first slide rail of first support upper surface is in with the setting second slide rail on the second support, second support detachable sets up on the first support, just the second support is fixed during first support, first slide rail with the second slide rail is met, voltage measuring device's first looks slidable sets up first slide rail with the second slide rail to fix through first fastener when sliding first slide rail and second slide rail.
The utility model discloses in one of them embodiment, the second support frame passes through bolt or fixed pin detachable setting and is in on the first support frame.
The utility model discloses in one of them embodiment, the third support includes that the bottom is fixed third support frame on the frame extends to fourth support frame outside the frame sets up the third slide rail of third support frame upper surface is in with the setting fourth slide rail on the fourth support frame, fourth support frame detachable sets up on the third support frame, just the fourth support frame is fixed during the third support frame, the third slide rail with the fourth slide rail is in succession, voltage measuring device's first looks slidable sets up the third slide rail with the fourth slide rail to fix through the second fastener when sliding to third slide rail and fourth slide rail.
In one embodiment of the present invention, the fourth supporting frame is detachably disposed on the third supporting frame through a bolt or a fixing pin.
In one embodiment of the present invention, the first fastener and the second fastener are bolts or fixing pins.
In one embodiment of the present invention, the first phase of the lightning arrester is disposed on the frame through the first telescopic member; and the third phase of the lightning arrester is arranged on the frame through a second telescopic piece.
In one embodiment of the present invention, the first telescopic member includes a first fixing sleeve fixed on the frame, and a first sliding sleeve slidably disposed inside the first fixing sleeve, wherein the first phase of the arrester is fixed on the first sliding sleeve, and when in the first position, the first sliding sleeve can slide into the first fixing sleeve, and the first phase of the arrester is located right above the frame; when the lightning arrester is located at the second position, the first phase of the lightning arrester and the second phase of the lightning arrester reach an insulation distance, and the first sliding sleeve is fixed on the first fixed sleeve under the action of a third fastener.
In one embodiment of the present invention, the second telescopic member includes a second fixed sleeve fixed on the frame, and a second sliding sleeve slidably disposed inside the second fixed sleeve, wherein the third phase of the arrester is fixed on the second sliding sleeve, and in a third position, the second sliding sleeve can slide into the second fixed sleeve, and the third phase of the arrester is located directly above the frame; when the lightning arrester is located at the fourth position, the third phase of the lightning arrester and the second phase of the lightning arrester reach an insulation distance, and the second sliding sleeve is fixed on the second fixing sleeve under the action of a fourth fastener.
According to the technical solution, the distance between the first phase of the voltage measuring device and the second phase of the voltage measuring device in the vehicle-mounted mobile substation is adjustably arranged on the frame, and the distance between the third phase of the voltage measuring device and the second phase of the voltage measuring device is adjustably arranged on the frame; the distance between the third phase of the lightning arrester and the second phase of the lightning arrester is adjustable and is arranged on the frame. Therefore, when passing through a road surface, the distance between the third phase of the voltage measuring device and the second phase of the voltage measuring device is adjusted to be suitable for the transportation condition, and when the vehicle-mounted mobile substation is required to be used, the distance between the third phase of the voltage measuring device and the second phase of the voltage measuring device is adjusted to be the insulation distance; similarly, when the vehicle-mounted mobile substation is required to be used, the distance between the third phase of the lightning arrester and the second phase of the lightning arrester is adjusted to enable the distance between the third phase of the lightning arrester and the second phase of the lightning arrester to be at an insulation distance. Can know from the above-mentioned description, adopt the utility model discloses an on-vehicle mobile substation removes the in-process and does not need all dismantlements, just can reach the purpose of transportation, has reduced cost of transportation and installation cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a front view structure of a vehicle-mounted mobile substation provided by the present invention;
fig. 2 is a schematic top view of the vehicle-mounted mobile substation provided by the present invention;
fig. 3 is a schematic structural diagram of the voltage measuring device provided by the present invention in a transportation state;
fig. 4 is a schematic structural diagram of the voltage measuring device provided by the present invention in a use state;
fig. 5 is a schematic structural view of the lightning arrester provided by the present invention in a transportation state;
fig. 6 is a schematic structural view of the lightning arrester provided by the present invention in a use state;
in the drawing, 100 is a voltage measuring device, 200 is a lightning arrester, 300 is a vehicle frame, 101 is a first phase of the voltage measuring device, 102 is a second phase of the voltage measuring device, 103 is a third phase of the voltage measuring device, 201 is a first phase of the lightning arrester, 202 is a second phase of the lightning arrester, 203 is a third phase of the lightning arrester, 401 is a first support, 402 is a second support, 403 is a third support, 501 is a first telescopic member, 502 is a second telescopic member, 4011 is a first support, 4012 is a second support, 4013 is a first slide rail, 4014 is a second slide rail, 4015 is a first fastener, 4031 is a third support, 4032 is a fourth support, 4033 is a third slide rail, 4034 is a fourth slide rail, 4035 is a second fastener, 5021 is a first fixing sleeve, 5012 is a first slide sleeve, 5013 is a third fastener, 5021 is a second fixing sleeve, 5022 is a second slide sleeve, and 4033 is a fourth fastener.
Detailed Description
The core of the utility model lies in providing a vehicle-mounted mobile substation to reduce vehicle-mounted mobile substation's cost of transportation.
The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.
Referring to fig. 1 to 6, an embodiment of the present invention provides a vehicle-mounted mobile substation, including:
an onboard mobile substation comprising: the lightning arrester comprises a high-voltage transformer car and a medium-voltage transformer car connected with the high-voltage transformer car, wherein a voltage measuring device 100 and a lightning arrester 200 in the high-voltage transformer car are separately arranged on a frame 300;
a first phase 101 of a voltage measuring device, a second phase 102 of the voltage measuring device and a third phase 103 of the voltage measuring device are arranged along the width direction of the vehicle frame 300, the distance between the first phase 101 of the voltage measuring device and the second phase 102 of the voltage measuring device is adjustably arranged on the vehicle frame 300, and the distance between the third phase 103 of the voltage measuring device and the second phase 102 of the voltage measuring device is adjustably arranged on the vehicle frame 300;
the first phase 201 of the arrester, the second phase 202 of the arrester and the third phase 203 of the arrester are arranged in the width direction of the vehicle frame 300, the distance between the first phase 201 of the arrester and the second phase 202 of the arrester is adjustably provided on the vehicle frame 300, and the distance between the third phase 203 of the arrester and the second phase 202 of the arrester is adjustably provided on the vehicle frame 300.
The utility model discloses a distance adjustable setting between voltage measuring device's first phase 101 and voltage measuring device's second phase 102 in on-vehicle mobile substation is on frame 300, and distance adjustable setting between voltage measuring device's third phase 103 and voltage measuring device's second phase 102 is on frame 300; the distance between the third phase 203 of the arrester and the second phase 202 of the arrester is adjustably arranged on the vehicle frame 300. Therefore, when passing through the road surface, the distance between the third phase 103 of the voltage measuring device and the second phase 102 of the voltage measuring device is adjusted to be suitable for the transportation condition, and when the vehicle-mounted mobile substation is required to be used, the distance between the third phase 103 of the voltage measuring device and the second phase 102 of the voltage measuring device is adjusted to be the insulation distance; similarly, when passing through the road surface, the distance between the third phase 203 of the arrester and the second phase 202 of the arrester is adjusted to be suitable for the transportation condition, and when the vehicle-mounted mobile substation is required to be used, the distance between the third phase 203 of the arrester and the second phase 202 of the arrester is adjusted to be at the insulation distance. Can know from the above-mentioned description, adopt the utility model discloses an on-vehicle mobile substation removes the in-process and does not need all dismantlements, just can reach the purpose of transportation, has reduced cost of transportation and installation cost.
It should be noted that the distance between the first phase 101 of the voltage measuring device and the second phase 102 of the voltage measuring device, the distance between the third phase 103 of the voltage measuring device and the second phase 102 of the voltage measuring device may be adjusted by providing a telescopic member, or by detaching the connection, or by providing a coupling or a hinge.
The distance between the first phase 201 of the arrester and the second phase 202 of the arrester, the third phase 203 of the arrester and the second phase 202 of the arrester can be adjusted by arranging a telescopic piece, or by dismounting connection, or by arranging a shaft joint or a hinged mode.
In one embodiment of the present invention, the first phase 101 of the voltage measuring device is disposed on the frame 300 through the first support 401, the second phase 102 of the voltage measuring device is disposed on the frame 300 through the second support 402, and the third phase 103 of the voltage measuring device is disposed on the frame 300 through the third support 403.
The second bracket 402 is fixed on the frame 300, and the first bracket 401 and the third bracket 403 are all or partially fixed on the frame 300, so that the first bracket 401 itself has a function of adjusting the distance, or the first bracket 401 has a function of adjusting the distance relative to the frame 300 itself; the third bracket 403 itself has the function of adjusting the distance, or the third bracket 403 has the function of adjusting the distance relative to the frame 300 itself
The utility model discloses in one of them embodiment, first support 401 itself possesses the function of adjusting the distance, it is specific, this first support 401 includes that the bottom is fixed first support 4011 on frame 300, extend to the outer second support frame 4012 of frame 300, set up first slide rail 4013 and the second slide rail 4014 of setting on second support frame 4012 at first support frame 4011 upper surface, second support frame 4012 detachable sets up on first support frame 4011, and second support frame 4012 fixes when first support frame 4011, first slide rail 4013 and second slide rail 4014 meet, voltage measuring device's first slidable of phase sets up at first slide rail 4013 and second slide rail 4014, and fix through first fastener 4015 when sliding to first slide rail 4013 and second slide rail 4014.
When transportation is needed, the first phase 101 of the voltage measuring device moves from the first slide rail 4013 to the second slide rail 4014, and then the second support frame 4012 is detached; when needs use, install second support frame 4012 on first support frame 4011 earlier for first slide rail 4013 and second slide rail 4014 are engaged, along first slide rail 4013 and second slide rail 4014 removal voltage measuring device's first phase 101 to second support frame 4012, until, after voltage measuring device's first phase 101 and voltage measuring device's second phase 102 reached insulating distance, through first fastener 4015 fixed voltage measuring device's first phase 101. Therefore, the utility model discloses an embodiment is through falling into the two parts structure that can dismantle with first support 401, just can accomplish the transportation installation to reduce the cost of transportation, and remove through the slide rail at above-mentioned each in-process, consequently, reach labour saving and time saving's purpose. The second support 4012 is detachably mounted on the first support 4011 by bolts or fixing pins.
The utility model discloses in one of them embodiment, third support 403 self can adjust the distance, third support 403 includes that the bottom is fixed on third support 4031 on frame 300, extend to the outer fourth support 4032 of frame 300, set up third slide 4033 and the fourth slide 4034 of setting on fourth support 4032 on third support 4031 upper surface, fourth support 4032 detachable sets up on third support 4031, and when fourth support 4032 fixes at third support 4031, third slide 4033 and fourth slide 4034 meet mutually, the first looks slidable of voltage measurement device sets up at third slide 4033 and fourth slide 4034, and fix through second fastener 4035 when sliding to third slide 4033 and fourth slide 4034.
When transportation is required, the third phase 103 of the voltage measurement device moves from the third sliding rail 4033 to the fourth sliding rail 4034, and then the fourth support 4032 is detached; when the voltage measuring device needs to be used, the fourth support 4032 is firstly installed on the third support 4031, so that the third slide 4033 is engaged with the fourth slide 4034, the third phase 103 of the voltage measuring device is moved to the second support 4012 along the third slide 4033 and the fourth slide 4034, and the third phase 103 of the voltage measuring device is fixed by the second fastener 4035 until the third phase 103 of the voltage measuring device and the second phase 102 of the voltage measuring device reach an insulation distance. Therefore, the utility model discloses an embodiment is through falling into the two parts structure that can dismantle with third support 403, just can accomplish the transportation installation to reduce the cost of transportation, and remove through the slide rail at above-mentioned each in-process, consequently, reach labour saving and time saving's purpose. The fourth support 4032 is detachably mounted to the third support 4031 by bolts or fixing pins.
The first fastener 4015 and the second fastener 4035 are bolts or fixing pins.
In one embodiment of the present invention, the first phase 201 of the lightning arrester is disposed on the frame 300 through the first expansion member 501; the third phase 203 of the arrester is arranged on the frame 300 via a second telescopic member 502.
Specifically, the first telescopic member 501 comprises a first fixed sleeve 5011 fixed on the frame 300, and a first sliding sleeve 5012 slidably disposed inside the first fixed sleeve 5011, wherein the first phase 201 of the lightning arrester is fixed on the first sliding sleeve 5012, and in a first position, the first sliding sleeve 5012 can slide into the first fixed sleeve 5011, and the first phase 201 of the lightning arrester is located right above the frame 300; when in the second position, an insulating distance is reached between the first phase 201 of the arrester and the second phase 202 of the arrester, the fixation of the first sliding sleeve 5012 to the first fixed sleeve 5011 being achieved by means of the third fastening means 5013.
In one embodiment of the present invention, the second telescopic member 502 includes a second fixing sleeve 5021 fixed on the frame 300, a second sliding sleeve 5022 slidably disposed inside the second fixing sleeve 5021, and the third phase 203 of the lightning arrester is fixed on the second sliding sleeve 5022, and in the third position, the second sliding sleeve 5022 can slide into the second fixing sleeve 5021, and the third phase 203 of the lightning arrester is located right above the frame 300; when in the fourth position, an insulation distance is reached between the third phase 203 of the arrester and the second phase 202 of the arrester, and the fixation of the second sliding sleeve 5022 to the second fixing sleeve 5021 is achieved under the action of the fourth fastener 5023.
When transportation is needed, the first sliding sleeve 5012 is moved towards the direction close to the first fixing sleeve 5011 until the first phase 201 of the lightning arrester is positioned right above the vehicle frame 300, and the second sliding sleeve 5022 is moved towards the direction close to the second fixing sleeve 5021 until the third phase 203 of the lightning arrester is positioned right above the vehicle frame 300, so that the width of the lightning arrester does not exceed the standard and the lightning arrester can normally pass through the lightning arrester; when the vehicle-mounted mobile substation needs to be used, the first sliding sleeve 5012 is moved towards the direction far away from the first fixed sleeve 5011 until the first phase 201 of the lightning arrester and the second phase 202 of the lightning arrester reach an insulation distance, and the second sliding sleeve 5022 is moved towards the direction far away from the second fixed sleeve 5021 until the third phase 203 of the lightning arrester and the second phase 202 of the lightning arrester reach an insulation distance. In the process, the whole lightning arrester does not need to be completely disassembled, so that the transportation cost is reduced.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An on-vehicle mobile substation, characterized by comprising: the lightning arrester comprises a high-voltage transformer car and a medium-voltage transformer car connected with the high-voltage transformer car, wherein a voltage measuring device and a lightning arrester in the high-voltage transformer car are independently arranged on a frame;
a first phase of the voltage measuring device, a second phase of the voltage measuring device and a third phase of the voltage measuring device are arranged along the width direction of the vehicle frame, the distance between the first phase of the voltage measuring device and the second phase of the voltage measuring device is adjustably arranged on the vehicle frame, and the distance between the third phase of the voltage measuring device and the second phase of the voltage measuring device is adjustably arranged on the vehicle frame;
the first phase of the lightning arrester, the second phase of the lightning arrester and the third phase of the lightning arrester are arranged along the width direction of the frame, the distance between the first phase of the lightning arrester and the second phase of the lightning arrester is arranged on the frame in an adjustable mode, and the distance between the third phase of the lightning arrester and the second phase of the lightning arrester is arranged on the frame in an adjustable mode.
2. The on-board mobile substation of claim 1, wherein the first phase of the voltage measurement device is disposed on the frame via a first bracket, the second phase of the voltage measurement device is disposed on the frame via a second bracket, and the third phase of the voltage measurement device is disposed on the frame via a third bracket.
3. The on-board mobile substation of claim 2, wherein the first support comprises a first support fixed at the bottom to the frame, a second support extending out of the frame, a first slide rail arranged on the upper surface of the first support and a second slide rail arranged on the second support, the second support is detachably arranged on the first support, the first slide rail and the second slide rail are engaged when the second support is fixed on the first support, and the first phase of the voltage measuring device is slidably arranged on the first slide rail and the second slide rail and fixed by a first fastener when sliding to the first slide rail and the second slide rail.
4. The on-board mobile substation of claim 3, wherein the second support bracket is detachably provided on the first support bracket by means of bolts or fixing pins.
5. The vehicle-mounted mobile substation of claim 4, wherein the third support comprises a third support frame fixed to the frame at the bottom, a fourth support frame extending out of the frame, a third slide rail arranged on the upper surface of the third support frame, and a fourth slide rail arranged on the fourth support frame, the fourth support frame is detachably arranged on the third support frame, the third slide rail and the fourth slide rail are in mutual engagement when the fourth support frame is fixed to the third support frame, and the first phase of the voltage measuring device is slidably arranged on the third slide rail and the fourth slide rail and is fixed by a second fastener when sliding to the third slide rail and the fourth slide rail.
6. The on-board mobile substation of claim 5, wherein the fourth support bracket is detachably provided on the third support bracket by means of bolts or fixing pins.
7. The on-board mobile substation of claim 6, wherein the first and second fasteners are bolts or fixed pins.
8. The on-board mobile substation of claim 7, wherein the first phase of the surge arrester is disposed on the frame via a first telescopic member; and the third phase of the lightning arrester is arranged on the frame through a second telescopic piece.
9. The on-board mobile substation of claim 8, wherein the first telescopic member comprises a first fixed cover fixed to the frame, a first sliding cover slidably disposed inside the first fixed cover, and the first phase of the surge arrester is fixed to the first sliding cover, and in the first position, the first sliding cover can slide into the first fixed cover, and the first phase of the surge arrester is located directly above the frame; when the lightning arrester is located at the second position, the first phase of the lightning arrester and the second phase of the lightning arrester reach an insulation distance, and the first sliding sleeve is fixed on the first fixed sleeve under the action of a third fastener.
10. The on-board mobile substation of claim 9, wherein the second telescopic member comprises a second stationary sheath fixed to the frame, a second sliding sheath slidably disposed inside the second stationary sheath, wherein the third phase of the surge arrester is fixed to the second sliding sheath, and wherein in a third position the second sliding sheath is slidable into the second stationary sheath with the third phase of the surge arrester directly above the frame; when the lightning arrester is located at the fourth position, the third phase of the lightning arrester and the second phase of the lightning arrester reach an insulation distance, and the second sliding sleeve is fixed on the second fixing sleeve under the action of a fourth fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921969884.6U CN210577348U (en) | 2019-11-14 | 2019-11-14 | Vehicle-mounted mobile substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921969884.6U CN210577348U (en) | 2019-11-14 | 2019-11-14 | Vehicle-mounted mobile substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210577348U true CN210577348U (en) | 2020-05-19 |
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ID=70660649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921969884.6U Active CN210577348U (en) | 2019-11-14 | 2019-11-14 | Vehicle-mounted mobile substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210577348U (en) |
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2019
- 2019-11-14 CN CN201921969884.6U patent/CN210577348U/en active Active
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