CN215816762U - External standard conversion device - Google Patents
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- CN215816762U CN215816762U CN202122223596.XU CN202122223596U CN215816762U CN 215816762 U CN215816762 U CN 215816762U CN 202122223596 U CN202122223596 U CN 202122223596U CN 215816762 U CN215816762 U CN 215816762U
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Abstract
The application relates to the technical field of swing and hanging transportation accessories, in particular to an external standard conversion device. The external standard conversion device comprises a conversion circuit and a plug main body which is formed with a male head and a female head, wherein the female head is used for being plugged with an electric connector of a tractor, and the male head is used for being plugged with an electric connector of a trailer; the conversion circuit is arranged in the plug main body, and the male head is electrically connected with the female head through the conversion circuit; the switching circuit is switchable between a first state and a second state to render the electrical connector of the tractor vehicle and the electrical connector of the trailer vehicle of different standards conductive. This external standard conversion device need not broken string, plug-and-play, connects the operating efficiency height, and can used repeatedly, does not produce the cost and piles up, and conversion circuit's state selection does not rely on operator's technical ability, and stability and reliability are showing and are improving, and can effectively reduce the risk that leads to equipment to damage because of the wiring mistake, and the safety in utilization is high.
Description
Technical Field
The application relates to the technical field of swing and hanging transportation accessories, in particular to an external standard conversion device.
Background
Along with the rapid development of the logistics industry, the demands for drop and pull transportation are increasing, and the phenomenon that a new national standard and an old national standard coexist occurs in the wiring mode of the electric connector between the tractor and the trailer on the market at present, so that the line sequence of the electric connector between the tractor and the trailer is not matched.
At present, in order to solve this problem, the conventional solution is to break the broken electrical connector of the trailer and adjust the wire sequence thereof to match the wire sequence of the electrical connector at the tractor end, and hereinafter, this solution is referred to as "broken wire connection".
Broken connections present a number of problems:
firstly, potential safety hazards exist, the trailer-end electric connector is broken, and the line sequence of the trailer-end electric connector is adjusted, so that the sealing performance of the electric connector is damaged, and risks of water leakage, short circuit, shortened service life and the like are caused; in addition, broken connections may result in equipment damage due to wiring errors.
Secondly, broken line connection needs the professional just can operate, needs to spend about 1 hour, and is with high costs and waste time and energy. In addition, get rid of and hang the transportation in-process and often need match tractor and trailer, if in case the unmatched condition of line order standard appears, then all need broken string at every turn and connect, get off for a long time, the cost is piled up, and the time of spending is with a lot of money.
Thirdly, operators connected by broken lines have uneven technical capabilities, and the stability and reliability of products after the broken lines are difficult to ensure.
SUMMERY OF THE UTILITY MODEL
An object of the application is to provide an external standard conversion device to solve the technical problem that the security is low, the inefficiency and reliability and poor stability are connected through broken lines that exist among the prior art to a certain extent.
The application provides an external standard conversion device which comprises a conversion circuit and a plug main body, wherein the plug main body is provided with a male head and a female head, the female head is used for being plugged with an electric connector of a tractor, and the male head is used for being plugged with an electric connector of a trailer;
the conversion circuit is arranged in the plug main body, and the male head is electrically connected with the female head through the conversion circuit;
the switching circuit is switchable between a first state and a second state to render the electrical connector of the tractor vehicle and the electrical connector of the trailer vehicle of different standards conductive.
In the above technical solution, further, the female head is formed as a seven-core socket, and the male head is formed as a seven-core plug;
the conversion circuit can convert the line sequence of the second female pin and the sixth line of the female head to accord with GB/T5053.1-2006 and convert the line sequence of the second male pin and the sixth line of the male head to accord with GB/T35782-2017 in a first state;
the conversion circuit can convert the line sequence of the second female pin and the sixth line of the female head to be in accordance with GB/T35782-2017 in a second state, and convert the line sequence of the second male pin and the sixth line of the male head to be in accordance with GB/T5053.1-2006.
In any of the above technical solutions, further, the conversion circuit includes a first conversion circuit, a second conversion circuit, a first connection circuit, and a switch member;
the first connecting circuit comprises a first lead and a first diode, the first lead is connected between a second male pin of the male connector and a second female pin of the female connector, the first diode is arranged on the first lead, and the current direction of the first diode is that the female connector points to the male connector;
the first switching circuit controls the connection and disconnection between the six-number female insertion needle of the female head and the six-number male insertion needle of the male head through the switch component;
and the second conversion circuit controls the connection and disconnection of the sixth female pin of the female head, the sixth male pin of the male head and the second male pin through the switch component.
In any one of the above technical solutions, further, the first conversion circuit includes a second wire and a second diode;
the second wire is provided with a first conductive end, the second wire is electrically connected with the sixth male pin of the male connector, the second diode is arranged on the second wire and positioned between the first conductive end and the sixth male pin of the male connector, and the current direction of the second diode is pointed to the sixth male pin of the male connector by the first conductive end.
In any of the above technical solutions, further, the second conversion circuit includes a third wire, a fourth wire, a third diode, and a fourth diode;
the third conducting wire is provided with a second conducting end and is electrically connected with the sixth male pin of the male connector, the third diode is arranged on the third conducting wire and is positioned between the second conducting end and the sixth male pin of the male connector, and the current direction of the third diode points to the sixth male pin of the male connector from the second conducting end;
the fourth wire is electrically connected between the second conducting end and the second male pin of the male connector, the fourth diode is arranged on the fourth wire, and the current direction of the fourth diode points to the second male pin of the male connector from the second conducting end.
In any of the above technical solutions, further, the switch component is a single-pole double-throw switch, a stationary end of the single-pole double-throw switch is electrically connected to a sixth line of the female terminal, and a moving end of the single-pole double-throw switch can rotate to a state of contacting and conducting with the first conducting end or to a state of contacting and conducting with the second conducting end.
In any of the above technical solutions, further, the conversion circuit further includes a second connection circuit, and the lines of the male head and the female head except the second line and the sixth line are electrically connected in a one-to-one correspondence manner according to the same number through the second connection circuit.
In any one of the above technical solutions, further, the plug main body further includes a protective cover detachably fastened to the female head.
In any of the above technical solutions, further, the external standard conversion device further includes a rotating shaft and an elastic reset piece, the rotating shaft is disposed on the female head, and the protective cover is connected to the female head through the rotating shaft, so that the protective cover can turn over around the rotating shaft;
the elastic resetting piece is connected between the protective cover and the plug main body, so that the protective cover is kept in a state of fastening the female head.
In any one of the above technical solutions, further, the elastic reset piece is a torsion spring, one end of the torsion spring is abutted to the protective cover, and the other end of the torsion spring is abutted to the plug main body.
Compared with the prior art, the beneficial effect of this application is:
the application provides an external standard conversion device, including converting circuit and be formed with the plug main part of public head and female head. The female head of the plug main body is connected with the electric connector of the tractor in an inserting mode, the male head of the plug main body is connected with the electric connector of the trailer in an inserting mode, and therefore the electric connector of the tractor and the electric connector of the trailer can be electrically connected through the conversion circuit inside the plug main body under the condition that wires are not broken.
On this basis, converting circuit has two kinds of different states, thereby be applicable to the electric connector of the tractor with two kinds of different standards respectively and switch on with the electric connector of trailer, only need select converting circuit's state according to the line sequence standard that tractor and trailer adopted, can accomplish the electric connection of tractor and trailer, plug-and-play, it is efficient to connect the operation, and can used repeatedly, it piles up not to produce the cost, converting circuit's state selection does not rely on operator's technical ability, stability and reliability are showing and are improving, and can effectively reduce the risk that leads to equipment to damage because of the wiring mistake, the safety in utilization is high.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a first structural schematic diagram of an external standard conversion device according to an embodiment of the present disclosure;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a right side view of FIG. 2;
FIG. 4 is a cross-sectional view of FIG. 3 at section A-A;
fig. 5 is a second structural schematic diagram of an external standard conversion device according to an embodiment of the present disclosure;
fig. 6 is a circuit diagram of a conversion circuit of an external standard conversion device according to an embodiment of the present disclosure.
Reference numerals:
1-a plug body; 10-male; 100-male pin; 11-female head; 110-female contact pin; 12-a protective cover; 13-torsion spring; 14-a rotating shaft; 15-single pole double throw switch; 2-a conversion circuit; 20-a first wire; 21-a first diode; 22-a second wire; 23-a second diode; 24-a third wire; 25-a third diode; 26-a fourth wire; 27-a fourth diode; 28-a fifth wire; 29-sixth conductive line; 30-a seventh conductive line; 31-an eighth conductor; 32-ninth conductor; 33-a first conductive end; 34-second conductive terminal.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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, but 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 invention. 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.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1 to 6, an embodiment of the present application provides an external standard conversion apparatus for electrically connecting an electrical connector of a tractor and an electrical connector of a trailer.
The external standard conversion device provided by the embodiment comprises a conversion circuit 2 and a plug main body 1.
Hereinafter, the above-described components of the external standard conversion apparatus will be described in detail.
In the alternative of this embodiment, plug main body 1 is formed with public head 10 and female head 11, and female head 11 is used for pegging graft and switching on with the electric connector of tractor, and public head 10 is used for pegging graft and switching on with the electric connector of trailer to make plug main body 1 connect between the electric connector of tractor and the electric connector of trailer with external form, need not to carry out broken string to the electric connector of tractor or the electric connector of trailer and handle, can accomplish the wiring high-efficiently.
The conversion circuit 2 is disposed inside the plug main body 1, and the male plug 10 and the female plug 11 are electrically connected through the conversion circuit 2, so that an electrical signal is transmitted from the male plug 10 to the female plug 11 through the conversion circuit 2.
The conversion circuit 2 can be switched between a first state and a second state to bring the electrical connectors of tractors having different standards into conduction with the electrical connectors of the trailer, so that both the electrical connectors of a tractor conforming to the old standard and the electrical connectors of a trailer conforming to the new standard, and the electrical connectors of a tractor conforming to the new standard and the electrical connectors of a trailer conforming to the old standard, can be brought into conduction through the conversion circuit 2.
In this embodiment, the existing electric connectors of the tractor and the trailer are seven-core electric connectors, and accordingly, the external standard conversion device is configured such that the female head 11 and the male head 10 are both formed into seven cores, wherein the female head 11 has seven female pins 110, a first female pin to a sixth female pin of the seven female pins 110 are sequentially arranged in a clockwise direction according to six vertexes of a regular hexagon, and the seven female pins are located at the centroid positions of the regular hexagon; similarly, the male header 10 has seven male pins 100, and a first male pin to a sixth male pin of the seven male pins 100 are sequentially arranged along the clockwise direction according to six vertices of a regular hexagon, and the seven male pins are located at the centroid position of the regular hexagon.
Currently, when there is a mismatch in the electrical connectors between the tractor and trailer, there are generally two situations, one: a tractor executing a new standard GB/T35782-2017 is matched with a trailer executing an old standard GB/T5053.1-2006, namely a new head is matched with an old hanger for short; case two: the tractor executing the old standard GB/T5053.1-2006 is matched with the trailer executing the new standard GB/T35782-2017, namely the old head is matched with a new trailer.
The conversion circuit 2 can convert the line sequence of the second female pin and the sixth female pin to accord with GB/T5053.1-2006 and convert the line sequence of the second male pin and the sixth male pin to accord with GB/T35782-2017 in the first state, so that the electric connector of the tractor conforming to the old standard is electrically connected with the electric connector of the trailer conforming to the new standard through the external standard conversion device.
The conversion circuit 2 can convert the line sequence of the second female pin and the sixth female pin to accord with GB/T35782-2017 in the second state, and convert the line sequence of the second male pin and the sixth male pin to accord with GB/T5053.1-2006, so that the electric connector of the tractor conforming to the new standard is electrically connected with the electric connector of the trailer conforming to the old standard through the external standard conversion device.
In an alternative of the present embodiment, the conversion circuit 2 includes a first conversion circuit, a second conversion circuit, a first connection circuit, a second connection circuit, and a switch member.
The first connecting circuit comprises a first lead 20 and a first diode 21, the first lead 20 is connected between the second male pin and the second female pin, the first diode 21 is arranged on the first lead 20, and the current direction of the first diode 21 is directed to the male head 10 from the female head 11, so that the second male pin and the second female pin are all in unidirectional electrical connection.
The first conversion circuit controls the connection and disconnection between the sixth female pin and the sixth male pin through the switch component, and the second conversion circuit controls the connection and disconnection between the sixth female pin and the sixth male pin as well as between the second male pin through the switch component, namely, the sixth female pin and the sixth male pin are conducted and the sixth female pin and the second male pin are conducted in the first state.
Specifically, under the condition that the switch component controls the first conversion circuit to conduct the sixth female pin and the sixth male pin and controls the second conversion circuit to disconnect the sixth female pin from the sixth male pin and the second male pin, the line sequence of the second female pin and the sixth female pin can be converted to accord with GB/T35782-2017, and the line sequence of the second male pin and the sixth male pin can be converted to accord with GB/T5053.1-2006.
Under the condition that the switch component controls the second conversion circuit to conduct the sixth female pin, the sixth male pin and the second male pin and controls the first conversion circuit to control the switch component to cut off the sixth female pin and the sixth male pin, the line sequence of the second female pin and the sixth female pin can be converted to accord with GB/T35782-2017, and the line sequence of the second male pin and the sixth male pin of the male head 10 can be converted to accord with GB/T5053.1-2006.
In this embodiment, the first conversion circuit includes a second wire 22 and a second diode 23.
The second wire 22 is formed with a first conductive end 33, the second wire 22 is electrically connected with the sixth male pin, the second diode 23 is arranged on the second wire 22 and is positioned between the first conductive end 33 and the sixth male pin, and the current direction of the second diode 23 is directed to the sixth male pin from the first conductive end 33, so that when the first conductive end 33 is conducted with the sixth female pin through the switch component, the sixth female pin and the sixth male pin can be electrically connected in a single direction, and meanwhile, the second female pin and the second male pin are also electrically connected in a single direction.
In the present embodiment, the second conversion circuit includes a third wire 24, a fourth wire 26, a third diode 25, and a fourth diode 27.
The third conducting wire 24 is provided with a second conducting end 34, the third conducting wire 24 is electrically connected with the sixth line of the male head 10, the third diode 25 is arranged on the third conducting wire 24 and is positioned between the second conducting end 34 and the sixth line of the male head 10, and the current direction of the third diode 25 points to the sixth line of the male head 10 from the second conducting end 34, so that when the second conducting end 34 is conducted with the sixth female pin through the switch component, the sixth female pin can be unidirectionally and electrically connected with the sixth male pin.
The first and second conductive ends 33 and 34 may be formed of bare metal contacts by providing a connection point for the sixth female pin to switch between the first and second conversion circuits by the first and second conductive ends 33 and 34.
In this embodiment, the switch member is a single-pole double-throw switch 15, and the single-pole double-throw switch 15 is composed of a movable end and a stationary end, and the movable end is a so-called "pole".
The fixed end of the single-pole double-throw switch 15 is electrically connected with the sixth wire of the female terminal 11, and the movable end of the single-pole double-throw switch 15 can rotate to be in contact with and conducted with the first conducting end 33 or rotate to be in contact with and conducted with the second conducting end 34. Therefore, when the moving end of the single-pole double-throw switch 15 is conducted with the first conductive end 33, the sixth female pin and the second female pin are electrically connected with the sixth male pin and the second male pin through the first conversion circuit, and when the moving end of the single-pole double-throw switch is conducted with the second conductive end 34, the sixth female pin and the second female pin are electrically connected with the sixth male pin and the second male pin through the second conversion circuit.
In this embodiment, since the functions of the first pin, the third pin, the fourth pin, the fifth pin and the seventh pin in the new standard and the old standard are not changed, the conversion circuit 2 further includes a second connection circuit, and the male connector 10 and the female connector 11 except the second pin and the sixth pin are electrically connected in a one-to-one correspondence manner according to the same serial number through the second connection circuit.
Specifically, the first female pin is electrically connected to the first male pin through a fifth wire 28, the third female pin is electrically connected to the third male pin through a sixth wire 29, the fourth female pin is electrically connected to the fourth male pin through a seventh wire 30, the fifth female pin is electrically connected to the fifth male pin through an eighth wire 31, and the seventh female pin is electrically connected to the seventh male pin through a ninth wire 32.
In an alternative of this embodiment, the plug main body 1 further includes a protective cover 12, and the protective cover 12 is detachably fastened to the female head 11, so that the female head 11 can be protected by the protective cover in the idle state; in addition, before the use, the protective cover 12 is opened, so that the line sequence of the pins of the female head 11 can be observed and checked conveniently, the phenomenon that the line sequence is connected by mistake and short circuit occurs is avoided, and the female head 11 is exposed to be connected with an electric connector of a tractor in an inserting mode.
In this embodiment, the external standard conversion device further includes a rotating shaft 14 and an elastic reset piece, the rotating shaft 14 is disposed on the female head 11, and the protecting cover 12 is connected to the female head 11 through the rotating shaft 14, so that the protecting cover 12 can be turned over around the rotating shaft 14, and the protecting cover 12 can be detachably connected to the plug main body 1 in a turning manner.
The elastic reset piece is connected between the protective cover 12 and the plug main body 1, so that the protective cover 12 is kept in a state of fastening the female head 11, and the protective cover 12 is prevented from falling off or losing.
Alternatively, the torsion spring 13 may be a knurled pin, thereby facilitating connection of the knurled pin with the female head 11.
In this embodiment, elasticity resets and is torsional spring 13, and the first end and the protective cover 12 butt of torsional spring 13, the second end and the 1 butt of plug of torsional spring 13 to under the non-state of turning over, under the elastic force effect of torsional spring 13, torsional spring 13 uses the second end to compress tightly protective cover 12 in plug 1 through first end as the basic point.
In addition, before the protective cover 12 needs to be opened to observe the female pin 110, the protective cover 12 can be manually moved within the range of overcoming the elasticity of the torsion spring 13, and after the observation is finished, the protective cover 12 can be automatically reset to the state of fastening the female pin 11 by loosening.
Particularly, all set up the joint recess on female head 11 and protective cover 12 to with the first end joint of torsional spring 13 in protective cover 12's joint recess, the joint is held in female head 11's draw-in groove recess to the second of torsional spring 13, so that torsional spring 13's both ends respectively with protective cover 12 with female head 11 reliable butt.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the utility model and form different embodiments. For example, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (10)
1. An external standard conversion device is characterized by comprising a conversion circuit and a plug main body, wherein the plug main body is provided with a male head and a female head, the female head is used for being plugged with an electric connector of a tractor, and the male head is used for being plugged with an electric connector of a trailer;
the conversion circuit is arranged in the plug main body, and the male head is electrically connected with the female head through the conversion circuit;
the switching circuit is switchable between a first state and a second state to render the electrical connector of the tractor vehicle and the electrical connector of the trailer vehicle of different standards conductive.
2. A plug-in standard conversion device according to claim 1, wherein the female head is formed as a seven-core socket and the male head is formed as a seven-core plug;
the conversion circuit can convert the line sequence of the second female pin and the sixth line of the female head to accord with GB/T5053.1-2006 and convert the line sequence of the second male pin and the sixth line of the male head to accord with GB/T35782-2017 in a first state;
the conversion circuit can convert the line sequence of the second female pin and the sixth line of the female head to be in accordance with GB/T35782-2017 in a second state, and convert the line sequence of the second male pin and the sixth line of the male head to be in accordance with GB/T5053.1-2006.
3. An external standard conversion device according to claim 2, wherein the conversion circuit comprises a first conversion circuit, a second conversion circuit, a first connection circuit and a switch member;
the first connecting circuit comprises a first lead and a first diode, the first lead is connected between a second male pin of the male connector and a second female pin of the female connector, the first diode is arranged on the first lead, and the current direction of the first diode is that the female connector points to the male connector;
the first switching circuit controls the connection and disconnection between the six-number female insertion needle of the female head and the six-number male insertion needle of the male head through the switch component;
and the second conversion circuit controls the connection and disconnection of the sixth female pin of the female head, the sixth male pin of the male head and the second male pin through the switch component.
4. An external standard conversion device according to claim 3, wherein the first conversion circuit comprises a second wire and a second diode;
the second wire is provided with a first conductive end, the second wire is electrically connected with the sixth male pin of the male connector, the second diode is arranged on the second wire and positioned between the first conductive end and the sixth male pin of the male connector, and the current direction of the second diode is pointed to the sixth male pin of the male connector by the first conductive end.
5. An external standard conversion device according to claim 4, wherein the second conversion circuit comprises a third wire, a fourth wire, a third diode and a fourth diode;
the third conducting wire is provided with a second conducting end and is electrically connected with the sixth male pin of the male connector, the third diode is arranged on the third conducting wire and is positioned between the second conducting end and the sixth male pin of the male connector, and the current direction of the third diode points to the sixth male pin of the male connector from the second conducting end;
the fourth wire is electrically connected between the second conducting end and the second male pin of the male connector, the fourth diode is arranged on the fourth wire, and the current direction of the fourth diode points to the second male pin of the male connector from the second conducting end.
6. The external standard conversion device according to claim 5, wherein the switch member is a single-pole double-throw switch, a fixed end of the single-pole double-throw switch is electrically connected with a six-wire of the female terminal, and a movable end of the single-pole double-throw switch can be rotated to a state of contacting and conducting with the first conductive end or to a state of contacting and conducting with the second conductive end.
7. An external standard conversion device according to claim 2, wherein the conversion circuit further comprises a second connection circuit, and the lines of the male head and the female head except for the second-number line and the sixth-number line are electrically connected in a one-to-one correspondence by the second connection circuit according to the same number.
8. A circumscribed standard conversion device according to claim 1, wherein the plug main body further comprises a protective cover detachably fastened to the female header.
9. The external standard conversion device of claim 8, further comprising a rotation shaft and a resilient restoring member, wherein the rotation shaft is disposed on the female head, and the protecting cover is connected to the female head through the rotation shaft, so that the protecting cover can be turned around the rotation shaft;
the elastic resetting piece is connected between the protective cover and the plug main body, so that the protective cover is kept in a state of fastening the female head.
10. The external standard conversion device of claim 9, wherein the elastic reset member is a torsion spring, one end of the torsion spring abuts against the protective cover, and the other end of the torsion spring abuts against the plug main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122223596.XU CN215816762U (en) | 2021-09-14 | 2021-09-14 | External standard conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122223596.XU CN215816762U (en) | 2021-09-14 | 2021-09-14 | External standard conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215816762U true CN215816762U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122223596.XU Active CN215816762U (en) | 2021-09-14 | 2021-09-14 | External standard conversion device |
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| Country | Link |
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| CN (1) | CN215816762U (en) |
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2021
- 2021-09-14 CN CN202122223596.XU patent/CN215816762U/en active Active
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