CN220322514U - Multipath signal output type quartz weighing sensor - Google Patents
Multipath signal output type quartz weighing sensor Download PDFInfo
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- CN220322514U CN220322514U CN202223509893.1U CN202223509893U CN220322514U CN 220322514 U CN220322514 U CN 220322514U CN 202223509893 U CN202223509893 U CN 202223509893U CN 220322514 U CN220322514 U CN 220322514U
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- 239000010453 quartz Substances 0.000 title claims abstract description 134
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 134
- 238000005303 weighing Methods 0.000 title claims abstract description 22
- 238000009434 installation Methods 0.000 claims description 15
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a multipath signal output type quartz weighing sensor, which comprises a pressure-bearing component, a grinding layer, a multi-section resistance type sensor and a positioning bracket, wherein the pressure-bearing component is arranged on the grinding layer; the grinding layer is arranged at the top of the pressure-bearing assembly, a positioning bracket is arranged inside the pressure-bearing assembly, a multi-section resistance type sensor is fixed on the positioning bracket, the multi-section resistance type sensor comprises n piezoelectric quartz plate units which are arranged in a straight line shape, fixed gaps are arranged among the piezoelectric quartz plate units and are connected through wires, a first wire is communicated with the first piezoelectric quartz plate unit, a second wire is sequentially communicated with the first piezoelectric quartz plate unit and the second piezoelectric quartz plate unit, and until an nth wire is sequentially communicated with the first piezoelectric quartz plate unit, the second piezoelectric quartz plate unit … nth piezoelectric quartz plate unit. The multi-section resistance type sensor is provided with the piezoelectric quartz plate units, correspondingly outputs the signals of the piezoelectric quartz plate units, and outputs the signals to corresponding equipment of the software system through the same cable, so that the piezoelectric quartz plate unit is convenient to install.
Description
Technical Field
The utility model belongs to the technical field of sensors, and particularly relates to a multipath signal output type quartz weighing sensor.
Background
The existing system for weighing the vehicle or detecting the number of the axles of the vehicle comprises a piezoelectric sensor and a cable; the piezoelectric sensor and the cable are buried on a road, and the sampling signals transmitted by the cable are subjected to analog-digital conversion and other treatments, and then the subsequent vehicle weighing or wheel axle number detection is performed.
In the long-table dynamic rail weighbridge weighing system of the patent CN103616064a, the weighing system comprises a weighing table, a signal processing device and a plurality of pressure sensors, wherein the plurality of pressure sensors comprise a first pressure sensor, a second pressure sensor, a third pressure sensor, a fourth pressure sensor, a fifth pressure sensor and a sixth pressure sensor, the signal processing device is respectively connected with the plurality of pressure sensors, converts analog signals of wheel weight information into digital signals, obtains a vehicle type of a detected vehicle and an average speed of the detected vehicle passing through the weighing table according to the digital signals, obtains a time period of all wheels of the detected vehicle being simultaneously located on the weighing table according to the change of the upper and lower weighing signals of the detected vehicle in the vehicle type and the digital signals, calculates the vehicle weight and unbalanced load information of the detected vehicle according to the digital signals in the time period, but each sensor in the scheme is provided with a separate signal wire and is connected with the signal processing device, so that the circuit laying is not facilitated in an actual use process, and the installation cost is high.
Disclosure of Invention
The technical purpose is that: aiming at the problems existing in the prior art, the utility model discloses a multipath signal output type quartz weighing sensor, which is convenient to install by arranging a plurality of piezoelectric quartz plate units on a multistage resistance type sensor, correspondingly outputting a plurality of paths of signals and outputting the signals to corresponding equipment of a software system through the same cable.
The technical scheme is as follows: in order to achieve the technical purpose, the utility model adopts the following technical scheme.
A multipath signal output type quartz weighing sensor comprises a pressure-bearing component, a grinding layer, a multi-section resistance type sensor and a positioning bracket; the grinding layer is arranged on the top of the pressure-bearing component and is used for receiving external pressure and transmitting the pressure to the pressure-bearing component; the pressure-bearing assembly is internally provided with a positioning bracket, a multi-section resistance type sensor is fixed on the positioning bracket, and the multi-section resistance type sensor is used for receiving the pressure transmitted by the pressure-bearing assembly;
the positioning support is H-shaped and comprises a first support plate, a second support plate and a third support plate, wherein the first support plate and the second support plate are parallel to each other, the third support plate is perpendicular to the first support plate and the second support plate, a plurality of sections of resistance sensors are fixedly arranged on the third support plate, a piezoelectric quartz plate upper electrode and a piezoelectric quartz plate lower electrode are arranged between the first support plate and the second support plate, and the piezoelectric quartz plate upper electrode and the piezoelectric quartz plate lower electrode are parallel to the third support plate; the upper electrode and the lower electrode of the piezoelectric quartz plate are respectively contacted with the top surface or the bottom surface of the multi-section resistance type sensor, and are respectively connected to corresponding equipment of the software system through cables;
the multi-section resistance type sensor comprises n piezoelectric quartz plate units, wherein the n piezoelectric quartz plate units are arranged in a straight shape, fixed gaps are arranged among the piezoelectric quartz plate units and are connected through wires, n paths of wires are arranged in total, a first path of wires are communicated with a first piezoelectric quartz plate unit, a second path of wires are sequentially communicated with the first piezoelectric quartz plate unit and a second piezoelectric quartz plate unit and are sequentially connected until an nth wire is sequentially communicated with the first piezoelectric quartz plate unit, the second piezoelectric quartz plate unit … nth piezoelectric quartz plate unit; the n-way wires lead out signals through an interface on one side and are connected to corresponding equipment of the software system through cables.
Preferably, a plurality of piezoelectric quartz plates are arranged in a straight line shape at equal intervals in the piezoelectric quartz plate unit.
Preferably, the pressure-bearing assembly is of an I-beam structure and comprises a module installation combined guide rail, a first pressure-bearing piece, a second pressure-bearing piece and a cavity arranged between the first pressure-bearing piece and the second pressure-bearing piece, wherein the first pressure-bearing piece and the second pressure-bearing piece are parallel to each other; the cavity body is connected with the positioning support through the multi-section resistance type sensor, bulges which are respectively contacted with the top surface of the upper electrode of the piezoelectric quartz plate and the bottom surface of the lower electrode of the piezoelectric quartz plate are arranged in the cavity body, a module installation combined guide rail is arranged on the outer side of the second pressure-bearing piece, and the second pressure-bearing piece is connected with the module installation combined guide rail through screws.
Preferably, the first pressure bearing member, the second pressure bearing member and the cavity are all made of metal materials.
Preferably, the cable wire comprises a first signal cable wire and a second signal cable wire, one end of the first signal cable wire is connected with the upper electrode of the piezoelectric quartz plate, one end of the second signal cable wire is connected with the lower electrode of the piezoelectric quartz plate, and the other ends of the first signal cable wire and the second signal cable wire are connected with corresponding equipment of the software system.
Preferably, the abrasive layer is made of synthetic quartz stone.
Preferably, the positioning bracket is made of an insulating material.
The beneficial effects are that: the utility model has the following beneficial effects:
(1) According to the utility model, the multi-section resistance type sensor is provided with the piezoelectric quartz plate units, and correspondingly outputs a plurality of paths of signals, and the signals are output to corresponding equipment of a software system through the same cable, so that the installation is convenient;
(2) According to the multi-section resistance type sensor provided by the utility model, each piezoelectric quartz plate unit can output signals, so that the situation that the vehicle cannot detect signals in a bending or other driving states is avoided, and the driving state of the vehicle can be judged according to the signals output by the piezoelectric quartz plate units;
(3) In the production process, the precision requirement of the placement of the piezoelectric quartz plates on the positions is high, and the installation and assembly efficiency is greatly improved after the positioning bracket is used.
Drawings
FIG. 1 is a schematic diagram of a multi-segment resistive sensor according to the present utility model;
FIG. 2 is a schematic diagram of a multi-segment resistive sensor back wire connection according to the present utility model;
FIG. 3 is a schematic diagram of the overall structure of the multiple-group dynamic quartz tire identification device of the present utility model;
FIG. 4 is a schematic diagram of the front and back sides of a multi-segment resistive sensor according to an embodiment of the present utility model;
wherein: 1-a pressure-bearing assembly; 101-a first pressure bearing piece; 102-a second pressure bearing member; 103-a cavity; 104-installing a combined guide rail on the module; 2-a polishing layer; 3-multi-segment resistive sensor; 4-piezoelectric quartz plate upper electrode; 5-a lower electrode of the piezoelectric quartz plate; 6-positioning a bracket; 601-a first support plate; 602-a second support plate; 603-a third support plate; 7-bump.
Detailed Description
The following describes a multi-channel signal output type quartz weighing sensor according to the present utility model in detail with reference to the drawings and examples.
As shown in figure 3, the multipath signal output type quartz weighing sensor comprises a pressure-bearing component 1, a grinding layer 2, a multi-section resistance type sensor 3 and a positioning bracket 6; the grinding layer 2 is arranged on the top of the pressure-bearing assembly 1 and is used for receiving external pressure and transmitting the pressure to the pressure-bearing assembly 1; a positioning bracket 6 is arranged in the pressure-bearing component 1, a plurality of sections of resistance sensors 3 are fixed on the positioning bracket 6, and the plurality of sections of resistance sensors 3 are used for receiving the pressure transmitted by the pressure-bearing component 1;
the positioning bracket 6 is in an H shape and comprises a first supporting plate 601, a second supporting plate 602 and a third supporting plate 603 which are parallel to each other and are arranged between the first supporting plate 601 and the second supporting plate 602, the third supporting plate 603 is perpendicular to the first supporting plate 601 and the second supporting plate 602, a plurality of sections of resistance type sensors 3 are fixedly arranged on the third supporting plate 603, a piezoelectric quartz plate upper electrode 4 and a piezoelectric quartz plate lower electrode 5 are arranged between the first supporting plate 601 and the second supporting plate 602, and the piezoelectric quartz plate upper electrode 4 and the piezoelectric quartz plate lower electrode 5 are parallel to the third supporting plate 603; the upper piezoelectric quartz plate electrode 4 and the lower piezoelectric quartz plate electrode 5 are respectively contacted with the top surface or the bottom surface of the multi-section resistance type sensor 3, and the upper piezoelectric quartz plate electrode 4 and the lower piezoelectric quartz plate electrode 5 are respectively connected to corresponding equipment of a software system through cables; the positioning bracket 6 is made of insulating materials, such as engineering plastics or other high polymer materials with certain strength and insulating function. In the production process, the piezoelectric quartz plate is placed with higher requirements on the position accuracy, and the utility model greatly improves the installation and assembly efficiency after the positioning bracket is used.
As shown in fig. 1 and fig. 2, the multi-section resistive sensor 3 includes n piezoelectric quartz plate units, where the n piezoelectric quartz plate units are arranged in a straight line, a fixed gap is provided between the piezoelectric quartz plate units and connected by a wire, and n wires are provided in total, where the first wire is connected with the first piezoelectric quartz plate unit, the second wire is sequentially connected with the first piezoelectric quartz plate unit and the second piezoelectric quartz plate unit, and until the nth wire is sequentially connected with the first piezoelectric quartz plate unit, the second piezoelectric quartz plate unit … nth piezoelectric quartz plate unit; the n-way wires lead out signals through an interface on one side and are connected to corresponding equipment of the software system through cables. According to the utility model, the multi-section resistance type sensor is provided with the piezoelectric quartz plate units, and correspondingly outputs the signals, and the signals are output to corresponding equipment of the software system through the same cable, so that the installation is convenient, the laying of excessive signal wires is avoided, and the installation cost is reduced. According to the multi-section resistance type sensor provided by the utility model, each piezoelectric quartz plate unit can output signals, so that the situation that the vehicle cannot detect signals in a bending or other driving states is avoided, and the driving state of the vehicle can be judged according to the signals output by the piezoelectric quartz plate units; for example, when the first path of wire outputs a signal, the vehicle is deflected to the position where the first piezoelectric quartz plate unit is located for driving.
In order to improve the accuracy of the pressure detection result, a plurality of piezoelectric quartz plates are arranged in a straight line shape at equal intervals in the piezoelectric quartz plate unit, and the piezoelectric quartz plates are connected in series to improve the voltage sensitivity, so that the charge sensitivity is the same as that of a single piezoelectric quartz plate.
The cable conductor includes first signal cable conductor and second signal cable conductor, and first signal cable conductor one end links to each other with piezoelectricity quartz plate upper electrode 4, and second signal cable conductor one end links to each other with piezoelectricity quartz plate lower electrode 5, and first signal cable conductor and second signal cable conductor other end all link to each other with software system corresponding equipment, realizes the positive and negative charge output with the production of multistage resistance sensor 3 piezoelectricity quartz plate.
The grinding layer 2 is used for receiving external pressure and transmitting the pressure to the pressure-bearing assembly 1, and is also used for ensuring the flatness of the road surface when the sensor device is buried on the road surface in engineering use, and can be polished and ground together with the road surface, so that the sensor device and the road surface are kept relatively flat; the grinding layer 2 is made of synthetic quartz stone, but can also be made of other materials, and is specifically selected according to actual needs.
The pressure-bearing assembly 1 is used for receiving pressure from the grinding layer 2; the pressure-bearing assembly 1 is of an I-beam structure and comprises a first pressure-bearing piece 101 (which can be a pressure-bearing plate) and a second pressure-bearing piece 102 (which can be a pressure-bearing plate) which are parallel to each other, a cavity 103 is arranged between the first pressure-bearing piece 101 and the second pressure-bearing piece 102, and the positioning bracket 6 is connected with the cavity 103 through a piezoelectric module to realize the fixation of the positioning bracket 6; the cavity body 103 is internally provided with bulges 7 which are respectively contacted with the top surface of the upper electrode 4 of the piezoelectric quartz plate and the bottom surface of the lower electrode 5 of the piezoelectric quartz plate; the outer side of the second pressure bearing piece 102 is provided with a module installation combined guide rail 104, and the second pressure bearing piece 102 and the module installation combined guide rail 104 are connected in a fixed screw mode; the cross section of the cavity 103 can be round or other shapes; the first pressure bearing member 101, the second pressure bearing member 102 and the hollow body 103 may be made of a metal material or other materials as long as the functions of water resistance, corrosion resistance and sealing can be achieved.
In the present utility model, the pressure-bearing assembly 1 may have other structures as long as it can transmit the received pressure to the piezoelectric module on the positioning bracket 6.
The assembly process of the utility model is as follows: firstly, clamping a piezoelectric quartz plate lower electrode 5 below a third supporting plate 603 on an H-shaped positioning bracket 6, then fixing a multi-section resistance type sensor 3 on the third supporting plate 603, and finally clamping a piezoelectric quartz plate upper electrode 4 above the multi-section resistance type sensor 3, so that the piezoelectric quartz plate upper electrode 4 is respectively contacted with the top surface of each piezoelectric quartz plate 3, and the piezoelectric quartz plate lower electrode 5 is respectively contacted with the bottom surface of each piezoelectric quartz plate 3; the positioning support 6 with the H-shaped section can play a role in fixing the upper electrode 4 and the lower electrode 5 of the piezoelectric quartz plate in practical application and assembly, the upper electrode 4 and the lower electrode 5 of the piezoelectric quartz plate are clamped in the upper and lower gaps of the H-shaped support in assembly, the positions of the upper electrode 4 of the piezoelectric quartz plate, the lower electrode 5 of the piezoelectric quartz plate and the piezoelectric quartz plate 3 are guaranteed not to move, the multi-section resistance sensor 3 and the positioning support 6 are integrated, the multi-section resistance sensor 3 is pushed into the cavity 103 and clamped by the protrusions 7 arranged in the cavity 103, the second pressure bearing piece 102 and the module installation combined guide rail 104 are connected in a fixed screw mode, and accordingly the relative positions of the piezoelectric quartz plate upper electrode 4 and the piezoelectric quartz plate lower electrode 5 in the cavity are guaranteed to be unchanged.
Examples:
as shown in fig. 4, in the multi-channel signal output type quartz weighing sensor of the embodiment, the length is 100mm, wherein the total length of the multi-section resistance type sensor 3 is 970mm, 8 piezoelectric quartz plate units are arranged, each piezoelectric quartz plate unit is 110mm long and 11mm wide, gaps among the piezoelectric quartz plate units are 10mm, 6 piezoelectric quartz plates which are arranged in a straight line shape at equal intervals are arranged in each piezoelectric quartz plate unit, and each piezoelectric quartz plate is circular, has a diameter of 10mm and a thickness of 1mm; the cross sections of the upper electrode and the lower electrode of the piezoelectric quartz plate are rectangular; the section of the positioning bracket is H-shaped, and is made of engineering plastic materials through a drawing and molding process, the thickness is 0.8mm, and the width is 12mm; the upper electrode and the lower electrode of the piezoelectric quartz plate are respectively clamped in the upper and lower sides of the positioning bracket, namely the upper and lower grooves of the H-shaped positioning bracket, so that the upper and lower electrodes of the piezoelectric quartz plate are stabilized, and the assembly efficiency and the product yield are improved.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The multichannel signal output type quartz weighing sensor is characterized by comprising a pressure-bearing component (1), an abrasive layer (2), a multi-section resistance type sensor (3) and a positioning bracket (6); the grinding layer (2) is arranged at the top of the pressure-bearing assembly (1) and is used for receiving external pressure and transmitting the pressure to the pressure-bearing assembly (1); a positioning bracket (6) is arranged inside the pressure-bearing component (1), a plurality of sections of resistance sensors (3) are fixed on the positioning bracket (6), and the plurality of sections of resistance sensors (3) are used for receiving the pressure transmitted by the pressure-bearing component (1);
the positioning support (6) is H-shaped and comprises a first support plate (601), a second support plate (602) and a third support plate (603) which are parallel to each other and are arranged between the first support plate (601) and the second support plate (602), the third support plate (603) is perpendicular to the first support plate (601) and the second support plate (602), a plurality of sections of resistance sensors (3) are fixedly arranged on the third support plate (603), a piezoelectric quartz plate upper electrode (4) and a piezoelectric quartz plate lower electrode (5) are arranged between the first support plate (601) and the second support plate (602), and the piezoelectric quartz plate upper electrode (4), the piezoelectric quartz plate lower electrode (5) are parallel to the third support plate (603); the upper piezoelectric quartz plate electrode (4) and the lower piezoelectric quartz plate electrode (5) are respectively contacted with the top surface or the bottom surface of the multi-section resistance type sensor (3), and the upper piezoelectric quartz plate electrode (4) and the lower piezoelectric quartz plate electrode (5) are respectively connected to corresponding equipment of a software system through cables;
the multi-section resistance type sensor (3) comprises n piezoelectric quartz plate units, wherein the n piezoelectric quartz plate units are arranged in a straight shape, fixed gaps are arranged among the piezoelectric quartz plate units and are connected through wires, n wires are arranged in total, a first wire is communicated with a first piezoelectric quartz plate unit, a second wire is sequentially communicated with the first piezoelectric quartz plate unit and a second piezoelectric quartz plate unit, and the n wires are sequentially connected until the n wires are sequentially communicated with the first piezoelectric quartz plate unit, the second piezoelectric quartz plate unit … n piezoelectric quartz plate units; the n-way wires lead out signals through an interface on one side and are connected to corresponding equipment of the software system through cables.
2. The multi-channel signal output type quartz weighing sensor according to claim 1, wherein a plurality of piezoelectric quartz plates are arranged in a straight line shape at equal intervals in the piezoelectric quartz plate unit.
3. The multi-channel signal output type quartz weighing sensor according to claim 1, wherein the pressure-bearing component (1) is of an I-beam structure and comprises a module installation combined guide rail (104), a first pressure-bearing piece (101), a second pressure-bearing piece (102) which are parallel to each other and a cavity (103) arranged between the first pressure-bearing piece (101) and the second pressure-bearing piece (102); the cavity (103) is connected with the positioning support (6) through the multi-section resistance type sensor (3), protrusions (7) which are respectively contacted with the top surface of the upper electrode (4) of the piezoelectric quartz plate and the bottom surface of the lower electrode (5) of the piezoelectric quartz plate are arranged in the cavity (103), a module installation combined guide rail (104) is arranged on the outer side of the second pressure-bearing piece (102), and the second pressure-bearing piece (102) is connected with the module installation combined guide rail (104) through screws.
4. A multiple signal output type quartz weighing cell according to claim 3, wherein said first pressure-bearing member (101), said second pressure-bearing member (102) and said cavity (103) are each made of a metallic material.
5. The multi-channel signal output type quartz weighing sensor according to claim 1, wherein the cable comprises a first signal cable and a second signal cable, one end of the first signal cable is connected with the upper electrode (4) of the piezoelectric quartz plate, one end of the second signal cable is connected with the lower electrode (5) of the piezoelectric quartz plate, and the other ends of the first signal cable and the second signal cable are connected with corresponding equipment of the software system.
6. A multiple signal output quartz load cell according to claim 1, characterized in that the grinding layer (2) is made of synthetic quartz stone.
7. A multiple signal output quartz load cell according to claim 1, characterized in that the positioning bracket (6) is made of an insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223509893.1U CN220322514U (en) | 2022-12-28 | 2022-12-28 | Multipath signal output type quartz weighing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223509893.1U CN220322514U (en) | 2022-12-28 | 2022-12-28 | Multipath signal output type quartz weighing sensor |
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| Publication Number | Publication Date |
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| CN220322514U true CN220322514U (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223509893.1U Active CN220322514U (en) | 2022-12-28 | 2022-12-28 | Multipath signal output type quartz weighing sensor |
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| CN (1) | CN220322514U (en) |
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2022
- 2022-12-28 CN CN202223509893.1U patent/CN220322514U/en active Active
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