CN218003535U - Current and voltage detection circuit device - Google Patents
Current and voltage detection circuit device Download PDFInfo
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- CN218003535U CN218003535U CN202221729237.XU CN202221729237U CN218003535U CN 218003535 U CN218003535 U CN 218003535U CN 202221729237 U CN202221729237 U CN 202221729237U CN 218003535 U CN218003535 U CN 218003535U
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Abstract
The utility model discloses a current-voltage detection circuit device belongs to voltage detection technical field, and its technical scheme main points include current-voltage detection device body, the mechanism is installed to the bottom fixedly connected with of current-voltage detection device body, the left side fixedly connected with operating button of current-voltage detection device body top front side, the right side fixedly connected with operation touch screen of current-voltage detection device body top front side, the rotation groove has been seted up to the rear side at current-voltage detection device body top, installs the mechanism through the setting, can install the current-voltage detection device body at the subaerial time of unevenness at user's needs, can grasp subassembly and unevenness ground contact through using to let bellied ground and spacing shell bottom contact, the pinion rack of spacing shell bottom will be upwards driven because of the pulling force of extension spring to it lets the backup pad grasp bellied ground to drive the tooth's socket.
Description
Technical Field
The utility model relates to a voltage detection technical field, in particular to current-voltage detection circuit device.
Background
Current detection device has the measuring range extensively, total twenty ranges, can measure alternating current-direct current stray voltage and stray current respectively, itself does not need the power, characteristics such as safe and reliable, current-voltage detection circuit arrangement is exactly one of them, but current detection device is when using, because do not level the road surface around, be not convenient for lay and adjust the observation mode to detection device, consequently just caused the limitation of use, and when examining the electric current, the operation item that conventional detection device provided is limited, can't carry out special operation, be not convenient for the user operation detection device.
SUMMERY OF THE UTILITY MODEL
The utility model provides a current-voltage detection circuit device aims at solving current detection device when using, owing to do not level the road surface around, is not convenient for lay and adjust the observation mode to detection device, has consequently just caused the limitation of use to when examining time measuring the electric current, the operation item that conventional detection device provided is limited, can't carry out special operation, the not convenient to use person operates detection device's problem.
The utility model discloses a realize like this, a current-voltage detection circuit arrangement, including the current-voltage detection device body, the bottom fixedly connected with of current-voltage detection device body installs the mechanism, the left side fixedly connected with operation button of current-voltage detection device body top front side, the right side fixedly connected with operation touch screen of current-voltage detection device body top front side, the rear side of current-voltage detection device body top is opened has the rotation groove, the inner wall of rotation groove rotates and is connected with the bull stick, the top fixedly connected with apron of bull stick, the inner wall fixedly connected with display screen of apron;
the installing mechanism comprises a telescopic assembly and a grasping assembly, the telescopic assembly comprises a limiting box, the surface of the limiting box is rotatably connected with four first turnplates which are uniformly distributed, the bottom of the limiting box is slidably connected with four sliding sleeves which are uniformly distributed, the bottom of the surface of each sliding sleeve is rotatably connected with a second turnplate, and the bottom of each sliding sleeve is slidably connected with a sliding rod.
In order to reach the effect that increases the device and ground connection stability, as the utility model discloses a current-voltage detection circuit arrangement is preferred, promptly the subassembly includes spacing shell, four even spread grooves of distribution have been seted up on the surface of spacing shell, the inner wall of spread groove rotates and is connected with the backup pad, the sliding tray has been seted up to the inner wall of spacing shell, the inner wall sliding connection of sliding tray has the pinion rack, the tooth's socket has been seted up to one side that the backup pad is close to the pinion rack, the surface engagement of tooth's socket and pinion rack, the holding tank has been seted up at the top of pinion rack, the bottom fixedly connected with extension spring of holding tank inner wall, the top of extension spring and the bottom fixed connection of slide bar.
In order to reach the effect that makes stability when increasing backup pad and ground contact, as the utility model discloses a current-voltage detection circuit arrangement is preferred, one side fixedly connected with gusset plate of pinion rack is kept away from to the backup pad, anti-skidding line is carved with to the bottom of gusset plate, the gusset plate uses with the backup pad cooperation.
In order to reach the effect that increases the device stability when spacing, conduct the utility model discloses a current-voltage detection circuit arrangement is preferred, spacing draw-in groove has all been seted up on the surface of sliding sleeve and the surface of slide bar, spacing draw-in groove uses with first carousel and second carousel cooperation respectively.
In order to reach the effect that increases comfort level when user rotates first carousel and second carousel, as the utility model discloses a current-voltage detection circuit arrangement is preferred, the surface of first carousel and the surface of second carousel all overlap and are equipped with the soft cover, the soft cover is made by waterproof sponge material, the soft cover uses with the cooperation of first carousel and second carousel respectively.
In order to reach and slide the sliding sleeve and carry out spacing effect, conduct the utility model discloses a current-voltage detection circuit arrangement is preferred, the surface of sliding sleeve is equipped with limit baffle, limit baffle uses with the sliding sleeve cooperation, limit baffle establishes to the U-shaped.
In order to reach the effect that increases structural stability, as the utility model discloses a current-voltage detection circuit arrangement is preferred, the sliding sleeve is made by stainless steel material, the slide bar is also made by stainless steel material, the slide bar is equipped with four altogether.
In order to reach the effect that increases structural stability, as the utility model discloses a current-voltage detection circuit arrangement is preferred, spacing shell is made by aluminum alloy material, the backup pad is also made by aluminum alloy material, the backup pad is equipped with four altogether.
In order to reach the effect that the person of facilitating the use opened the display screen, conduct the utility model discloses a current-voltage detection circuit arrangement is preferred, the equal fixedly connected with damping ring in both sides of rotating the inslot wall and the both sides of bull stick, the damping ring is made by silica gel material, the damping ring uses with rotating groove and bull stick cooperation respectively.
In order to reach the effect that increases structural integrity, as the utility model discloses a current-voltage detection circuit arrangement is preferred, one side and the sliding sleeve swing joint that first carousel is close to the sliding sleeve, one side and the sliding rod swing joint that the second carousel is close to the sliding rod, first carousel and second carousel all are equipped with four.
Compared with the prior art, the beneficial effects of the utility model are that:
this current-voltage detection circuit device, install the mechanism through setting up, can install the current-voltage detection device body when the user needs subaerial at the unevenness, can through using promptly subassembly and unevenness ground contact, and let bellied ground and spacing shell bottom contact, the pinion rack of spacing shell bottom will be upwards driven because the pulling force of extension spring, thereby drive the tooth's socket and let the backup pad hold bellied ground, stability when increasing the ground contact with unevenness, and can adjust the height of current-voltage detection device body through flexible subassembly, rotate first carousel and second carousel and just can adjust the height of every sliding sleeve and slide bar, with this position of calibrating current-voltage detection device body, the person of facilitating the use observes the display screen, the flexibility when having increased current-voltage detection device body and laying, and the user can carry out comparatively complicated operation through using operation button and operation touch screen, the operation button can play the effect of keyboard, the operation touch screen can play the effect of mouse, thereby the user is convenient to the operation of current-voltage detection device body, and can observe the display screen and handle information, the flexibility of current-voltage detection device body when having increased the use.
Drawings
Fig. 1 is an overall structure diagram of the current/voltage detection circuit device of the present invention;
fig. 2 is a schematic view of the overall structure of the middle telescopic assembly of the present invention;
fig. 3 is a schematic view of the overall structure of the operating button of the present invention;
FIG. 4 is a schematic view of the overall structure of the damping ring of the present invention;
fig. 5 is a schematic view of the overall structure of the middle limiting slot of the present invention;
fig. 6 is a schematic view of the overall structure of the grasping assembly of the present invention.
In the figure, 1, a current voltage detection device body; 2. installing a mechanism; 201. a telescopic assembly; 2011. a limiting box; 2012. a first turntable; 2013. a sliding sleeve; 2014. a second turntable; 2015. a slide bar; 202. a grasping assembly; 2021. a limiting shell; 2022. connecting grooves; 2023. a support plate; 2024. a sliding groove; 2025. a toothed plate; 2026. a tooth socket; 2027. accommodating grooves; 2028. a tension spring; 3. operating a key; 4. operating a touch screen; 5. a rotating groove; 6. a rotating rod; 7. a cover plate; 8. a display screen; 9. a reinforcing plate; 10. a limiting clamping groove; 11. a soft sleeve; 12. a limit baffle; 13. a damping ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-6, the present invention provides a technical solution: a current and voltage detection circuit device comprises a current and voltage detection device body 1, wherein the bottom of the current and voltage detection device body 1 is fixedly connected with an installation mechanism 2, the left side of the front side of the top of the current and voltage detection device body 1 is fixedly connected with an operation key 3, the right side of the front side of the top of the current and voltage detection device body 1 is fixedly connected with an operation touch screen 4, a rotating groove 5 is formed in the rear side of the top of the current and voltage detection device body 1, the inner wall of the rotating groove 5 is rotatably connected with a rotating rod 6, the top of the rotating rod 6 is fixedly connected with a cover plate 7, and the inner wall of the cover plate 7 is fixedly connected with a display screen 8;
the installation mechanism 2 comprises a telescopic assembly 201 and a grasping assembly 202, wherein the telescopic assembly 201 comprises a limit box 2011, the surface of the limit box 2011 is rotatably connected with four first rotating discs 2012 which are uniformly distributed, the bottom of the limit box 2011 is slidably connected with four sliding sleeves 2013 which are uniformly distributed, the bottom of the surface of each sliding sleeve 2013 is rotatably connected with a second rotating disc 2014, and the bottom of each sliding sleeve 2013 is slidably connected with a sliding rod 2015.
In this embodiment: by arranging the installation mechanism 2, when a user needs to install the current and voltage detection device body 1 on uneven ground, the current and voltage detection device body 1 can be contacted with the uneven ground through the grasping assembly 202, the raised ground is contacted with the bottom of the limiting shell 2021, the toothed plate 2025 at the bottom of the limiting shell 2021 is upwards driven due to the tension of the tension spring 2028, so that the toothed groove 2026 is driven to enable the supporting plate 2023 to clamp the raised ground, the stability of the current and voltage detection device body 1 in contact with the uneven ground is improved, the height of the current and voltage detection device body 1 can be adjusted through the telescopic assembly 201, the heights of each sliding sleeve 2013 and each sliding rod 2015 can be adjusted by rotating the first rotating disc 2012 and the second rotating disc 2014, the position of the current and voltage detection device body 1 is calibrated, the operation touch screen 4 can play a role, the mouse can play a role in operation, the flexibility of the current and voltage detection device body 1 can be conveniently observed, and the flexibility of the operation key 3 and the operation touch screen 4 can be used for carrying out complex operation on the keyboard for detecting the current and voltage of the keyboard can be increased when the operation device body is used for detecting the keyboard.
As the utility model discloses a technical optimization scheme, it includes spacing shell 2021 to grasp subassembly 202, four even spread grooves 2022 that distribute have been seted up on spacing shell 2021's surface, spread groove 2022's inner wall rotates and is connected with backup pad 2023, sliding tray 2024 has been seted up to spacing shell 2021's inner wall, sliding tray 2024's inner wall sliding connection has the pinion rack 2025, one side that backup pad 2023 is close to pinion rack 2025 has seted up tooth's socket 2026, tooth's socket 2026 and pinion rack 2025's surface meshing, holding tank 2027 has been seted up at pinion rack 2025's top, the bottom fixedly connected with extension spring 2028 of holding tank 2027 inner wall, the top of extension spring 2028 and the bottom fixed connection of slide bar 2015.
In this embodiment: through the arrangement of the grasping assembly 202, when the current and voltage detection device body 1 needs to be placed on uneven ground, the bottom of the limiting outer shell 2021 is in contact with the convex portion of the uneven ground, at this time, the tension spring 2028 lifts the tooth plate 2025 upwards along the accommodating groove 2027, the tooth plate 2025 moves the tooth groove 2026 upwards along the sliding groove 2024, the supporting plate 2023 rotates in the connecting groove 2022 due to the movement of the tooth groove 2026, the bottom of the supporting plate 2023 is in contact with the convex portion of the ground, so as to clamp the convex portion of the ground, and the stability of connection between the current and voltage detection device body 1 and the ground is increased.
As the utility model discloses a technical optimization scheme, one side fixedly connected with gusset plate 9 that pinion rack 2025 was kept away from to backup pad 2023, and the bottom of gusset plate 9 is carved with anti-skidding line, and gusset plate 9 uses with backup pad 2023 cooperation.
In this embodiment: by providing the reinforcing plate 9, the reinforcing plate 9 can further increase the stability of the supporting plate 2023 when clamped with the raised portion of the ground, and can provide the function of inserting the supporting plate 2023 into the ground, increasing the fixing manner and stability of the supporting plate 2023 with the ground.
As the utility model discloses a technical optimization scheme, spacing draw-in groove 10 has all been seted up on the surface of sliding sleeve 2013 and the surface of slide bar 2015, and spacing draw-in groove 10 uses with the cooperation of first carousel 2012 and second carousel 2014 respectively.
In this embodiment: the limiting clamping groove 10 is arranged, when the sliding sleeve 2013 and the sliding rod 2015 are limited by the first rotating disc 2012 and the second rotating disc 2014, the first rotating disc 2012 and the second rotating disc 2014 can be respectively contacted with the limiting clamping groove 10, and therefore the limiting stability of the sliding sleeve 2013 and the sliding rod 2015 by the first rotating disc 2012 and the second rotating disc 2014 is further improved.
As the utility model discloses a technical optimization scheme, the surface of first carousel 2012 and the surface of second carousel 2014 all overlap and are equipped with soft cover 11, and soft cover 11 is made by waterproof sponge material, and soft cover 11 uses with the cooperation of first carousel 2012 and second carousel 2014 respectively.
In this embodiment: by providing the soft sleeve 11, the stability of the user when the user holds the first rotating disc 2012 and the second rotating disc 2014 can be increased when the user uses the first rotating disc 2012 and the second rotating disc 2014, and the waterproof sponge material is soft, so that the comfort of the user when the user contacts the soft sleeve 11 is improved.
As the utility model discloses a technical optimization scheme, the surface of sliding sleeve 2013 is equipped with limit baffle 12, and limit baffle 12 uses with the sliding sleeve 2013 cooperation, and limit baffle 12 establishes to the U-shaped.
In this embodiment: through setting up limit baffle 12, can be when sliding sleeve 2013 takes in spacing case 2011, limit baffle 12 can carry on spacingly to sliding sleeve 2013's income, prevent that sliding sleeve 2013 from taking in too much and leading to first carousel 2012 and spacing case 2011 to collide, avoided first carousel 2012 and spacing case 2011 to collide and produce the condition of damage, the security when having increased sliding sleeve 2013 and spacing case 2011 and using.
As the utility model discloses a technical optimization scheme, sliding sleeve 2013 is made by stainless steel material, and slide bar 2015 is also made by stainless steel material, and slide bar 2015 is equipped with four altogether.
In this embodiment: establish to stainless steel through sliding sleeve 2013 and slide bar 2015, can further increase the security of sliding sleeve 2013 and slide bar 2015 when using, promoted sliding sleeve 2013 and slide bar 2015 overall structure's stability to four slide bars 2015 can increase the stability of current-voltage detection device body 1 when contacting with ground.
As the technical optimization scheme of the utility model, spacing shell 2021 is made by aluminum alloy material, and backup pad 2023 is also made by aluminum alloy material, and backup pad 2023 is equipped with four altogether.
In this embodiment: the materials of the limiting shell 2021 and the supporting plate 2023 are made of aluminum alloy, so that the waterproofness of the limiting shell 2021 and the supporting plate 2023 can be increased, the limiting shell 2021 and the supporting plate 2023 can be placed in water or polluted water, the flexibility of placement of the current and voltage detection device body 1 is increased, and the stability of clamping the convex ground can be increased by the four supporting plates 2023.
As the utility model discloses a technical optimization scheme, the both sides of rotating 5 inner walls in groove and the equal fixedly connected with damping ring 13 in both sides of bull stick 6, damping ring 13 is made by silica gel material, damping ring 13 uses with rotating 5 grooves in groove and 6 cooperations of bull stick respectively.
In this embodiment: through setting up damping ring 13, can be when the bull stick 6 of rotating the inslot 5 drives display screen 8, damping ring 13 can carry out real-time spacing with 6 pivoted angles of bull stick, can let display screen 8 demonstrate arbitrary angle, has increased the flexibility of display screen 8 when using.
As the utility model discloses a technical optimization scheme, first carousel 2012 is close to one side and the sliding sleeve 2013 swing joint of sliding sleeve 2013, and one side and the slide bar 2015 swing joint that second carousel 2014 is close to slide bar 2015, and first carousel 2012 and second carousel 2014 all are equipped with four.
In this embodiment: through being provided with four first carousels 2012 and second carousel 2014, can carry out height control to the sliding sleeve 2013 and the slide bar 2015 of every position respectively to let current-voltage detection device body 1 install on the ground of various unevenness, keep the horizontal position of current-voltage detection device body 1.
The working principle is as follows: firstly, moving the current and voltage detection device body 1 to a position to be used, then placing the current and voltage detection device body 1 on uneven ground, then rotating the first rotating disc 2012 and the second rotating disc 2014, so as to move the sliding sleeve 2013 downwards or upwards along the limiting box 2011, moving upwards to retract the sliding sleeve 2013 into the limiting box 2011 until the sliding sleeve 2013 is contacted with the limiting baffle 12, moving downwards to drive the sliding rod 2015 to move downwards until the top of the sliding sleeve 2013 is contacted with the bottom of the limiting box 2011, then rotating the first rotating disc 2012 to fix the sliding sleeve 2013 and the limiting box 2011, rotating the second rotating disc 2014 to move the sliding rod 2015 downwards to a ground position, then rotating the second rotating disc 2014 to fix the sliding rod 2015 and the sliding sleeve 2013, then, the bottom of the limiting outer shell 2021 is contacted with the convex part of the uneven ground, at this time, the tension spring 2028 will lift the tooth plate 2025 upwards along the accommodating groove 2027, the tooth plate 2025 will move the tooth groove 2026 upwards along the sliding groove 2024, the supporting plate 2023 will rotate in the connecting groove 2022 due to the movement of the tooth groove 2026, the bottom of the supporting plate 2023 will be contacted with the convex part of the ground, so as to be clamped with the convex part of the ground, finally, the cover plate 7 is opened, when the rotating rod 6 in the rotating groove 5 drives the display screen 8, the damping ring 13 can limit the rotating angle of the rotating rod 6 in real time, and after the angle to be observed is adjusted, the operation key 3 and the operation touch screen 4 can be used to operate the current and voltage detection apparatus body 1.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A current-voltage detection circuit device includes a current-voltage detection device body (1), characterized in that: the current and voltage detection device comprises a current and voltage detection device body (1), wherein the bottom of the current and voltage detection device body (1) is fixedly connected with a mounting mechanism (2), the left side of the front side of the top of the current and voltage detection device body (1) is fixedly connected with an operation key (3), the right side of the front side of the top of the current and voltage detection device body (1) is fixedly connected with an operation touch screen (4), the rear side of the top of the current and voltage detection device body (1) is provided with a rotating groove (5), the inner wall of the rotating groove (5) is rotatably connected with a rotating rod (6), the top of the rotating rod (6) is fixedly connected with a cover plate (7), and the inner wall of the cover plate (7) is fixedly connected with a display screen (8);
the installing mechanism (2) comprises a telescopic assembly (201) and a grasping assembly (202), the telescopic assembly (201) comprises a limiting box (2011), the surface of the limiting box (2011) is rotatably connected with four first turntables (2012) which are uniformly distributed, the bottom of the limiting box (2011) is slidably connected with four sliding sleeves (2013) which are uniformly distributed, the bottom of the surface of each sliding sleeve (2013) is rotatably connected with a second turntable (2014), and the bottom of each sliding sleeve (2013) is slidably connected with a sliding rod (2015).
2. A current-voltage detection circuit arrangement according to claim 1, wherein: the grasping assembly (202) comprises a limiting outer shell (2021), four connecting grooves (2022) which are uniformly distributed are formed in the surface of the limiting outer shell (2021), a supporting plate (2023) is rotatably connected to the inner wall of the connecting grooves (2022), a sliding groove (2024) is formed in the inner wall of the limiting outer shell (2021), a toothed plate (2025) is slidably connected to the inner wall of the sliding groove (2024), a toothed groove (2026) is formed in one side, close to the toothed plate (2025), of the supporting plate (2023), the toothed groove (2026) is meshed with the surface of the toothed plate (2025), an accommodating groove (2027) is formed in the top of the toothed plate (2025), a tension spring (2028) is fixedly connected to the bottom of the inner wall of the accommodating groove (2027), and the top of the tension spring (2028) is fixedly connected to the bottom of the sliding rod (2015).
3. A current voltage detecting circuit arrangement according to claim 2, wherein: one side fixedly connected with gusset plate (9) that backup pad (2023) kept away from pinion rack (2025), the bottom of gusset plate (9) is carved with anti-skidding line, gusset plate (9) and backup pad (2023) cooperation use.
4. A current-voltage detection circuit arrangement according to claim 1, wherein: spacing draw-in groove (10) have all been seted up on the surface of sliding sleeve (2013) and the surface of slide bar (2015), spacing draw-in groove (10) use with first carousel (2012) and second carousel (2014) cooperation respectively.
5. A current voltage detecting circuit arrangement according to claim 1, wherein: the surface of first carousel (2012) and the surface of second carousel (2014) all overlap and are equipped with soft cover (11), soft cover (11) are made by waterproof sponge material, soft cover (11) use with the cooperation of first carousel (2012) and second carousel (2014) respectively.
6. A current-voltage detection circuit arrangement according to claim 1, wherein: the surface of the sliding sleeve (2013) is provided with a limiting baffle (12), the limiting baffle (12) is matched with the sliding sleeve (2013) for use, and the limiting baffle (12) is U-shaped.
7. A current-voltage detection circuit arrangement according to claim 1, wherein: the sliding sleeve (2013) is made of stainless steel materials, the sliding rod (2015) is also made of stainless steel materials, and the sliding rod (2015) is totally provided with four.
8. A current voltage detecting circuit arrangement according to claim 2, wherein: the limiting shell (2021) is made of aluminum alloy materials, the supporting plate (2023) is also made of aluminum alloy materials, and the number of the supporting plates (2023) is four.
9. A current voltage detecting circuit arrangement according to claim 1, wherein: rotate the equal fixedly connected with damping ring (13) in both sides of groove (5) inner wall and the both sides of bull stick (6), damping ring (13) are made by the silica gel material, damping ring (13) use with rotating groove (5) and bull stick (6) cooperation respectively.
10. A current-voltage detection circuit arrangement according to claim 1, wherein: first carousel (2012) are close to one side and sliding sleeve (2013) swing joint of sliding sleeve (2013), one side and sliding rod (2015) swing joint that second carousel (2014) are close to sliding rod (2015), first carousel (2012) and second carousel (2014) all are equipped with four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221729237.XU CN218003535U (en) | 2022-07-05 | 2022-07-05 | Current and voltage detection circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221729237.XU CN218003535U (en) | 2022-07-05 | 2022-07-05 | Current and voltage detection circuit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218003535U true CN218003535U (en) | 2022-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221729237.XU Active CN218003535U (en) | 2022-07-05 | 2022-07-05 | Current and voltage detection circuit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218003535U (en) |
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2022
- 2022-07-05 CN CN202221729237.XU patent/CN218003535U/en active Active
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