Intelligent platen monitoring device

By introducing wave tooth assembly and pressure sensor into the pressure plate monitoring device, the problems of loose connection, failure to move, and false movement caused by pressure plate aging are solved, realizing real-time monitoring of pressure plate status and improving reliability.

CN224416956UActive Publication Date: 2026-06-26GUIZHOU WUJIANG HYDROPOWER DEV CO LTD WUJIANGDU POWER PLANT +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUIZHOU WUJIANG HYDROPOWER DEV CO LTD WUJIANGDU POWER PLANT
Filing Date
2025-03-21
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing technologies fail to monitor the aging of relay protection pressure plate structures in a timely manner, resulting in poor reliability of pressure plate activation/deactivation monitoring and a tendency for incidents such as incomplete connections, failure to operate, and erroneous operation.

Method used

An intelligent pressure plate monitoring device was designed, including a base, knob, pressure plate, corrugated teeth assembly, buffer pad, and pressure sensor. By using the tight contact between the corrugated teeth assembly and the terminal and the elastic deformation of the buffer pad, combined with the pressure sensor, the aging degree of the pressure plate structure can be monitored in real time, thereby improving the reliability of monitoring.

Benefits of technology

This technology enables timely monitoring of the aging degree of the pressure plate structure during operation, improves the reliability of pressure plate activation and deactivation monitoring, reduces the risk of misoperation, and extends the service life of the pressure plate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to electrical equipment monitoring technical field especially, it relates to a kind of intelligent platen monitoring device, the utility model sets base, knob, tablet and intelligent monitoring component, tablet one end fixed sleeve connects second knob, the other end is set to and the arc-shaped recess of first knob clasp, the middle part of tablet is set to the fixed clamp for fixing magnet, several wave teeth groups are set in arc-shaped recess, wave tooth group close to the surface of the bottom of recess and arc-shaped recess are provided with buffer pad, pressure sensor for monitoring pressure fluctuation of buffer pad is embedded in buffer pad, intelligent monitoring component includes clamping seat, the hollow iron sheet of lead wire, and the spring between the clamping seat side wall and hollow iron sheet, clamping seat two sides are symmetrically provided with through hole, output terminal for connecting monitoring console is set in through hole, and further, the aging degree of platen structure is monitored in time during operation, and the reliability of platen investment and withdrawal monitoring is improved.
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Description

Technical Field

[0001] This utility model relates to the field of electrical equipment monitoring technology, and in particular to an intelligent pressure plate monitoring device. Background Technology

[0002] Relay protection, as a critical line of defense in the power system, plays a vital role in ensuring the safety of the power system. The correctness of relay protection switchboard activation and deactivation directly affects the safe and stable operation of the power grid. With the continuous development of the power system, live-line work is also increasing, which requires frequent checks and confirmations of the activation, deactivation, and status of relay protection switches. However, in actual operation, due to abnormal aging of the switchboard structure, the switchboard is prone to mis-activation. At the same time, the activation, deactivation, and maintenance of relay protection switches mostly rely on manual inspection and verification. Manual operation is prone to errors and makes it difficult to detect problems such as loose connections. These defects can lead to protection failure to operate or maloperation accidents, posing a serious threat to the safe and reliable operation of the power grid. Therefore, timely monitoring of the aging degree of the switchboard structure to avoid such accidents and improve the monitoring efficiency of switchboard activation and deactivation status is an urgent technical problem to be solved.

[0003] For example, Chinese Patent Publication No. CN218002562U discloses a substation pressure plate intelligent monitoring device, including a base. A first knob and a second knob are fixedly installed near the top and bottom of the front face of the base, respectively. A pressure plate connecting piece is fixedly sleeved on the outer wall of the first knob. An arc-shaped groove is fixedly formed at the end of the pressure plate connecting piece away from the first knob. A clamp is fixedly installed on the outer wall of the middle part of the pressure plate connecting piece. A hollow groove is fixedly formed at the inner end of the clamp. A conductive piece is fixedly installed at the inner end of the hollow groove. Two return springs are fixedly connected to one side of the conductive piece. Connectors are fixedly connected to the ends of the two return springs away from the conductive piece. This utility model uses the on / off status of indicator lights to quickly and accurately help testing personnel determine the on / off state of the pressure plate, reducing testing difficulty and improving efficiency.

[0004] The following problems still exist in the existing technology:

[0005] The existing technology does not take into account that the pressure plate structure will age to varying degrees over time during actual operation. The existing technology cannot monitor the aging degree of the pressure plate structure in a timely manner during operation, which affects the reliability of pressure plate engagement and disengagement monitoring. Utility Model Content

[0006] Therefore, this utility model provides an intelligent pressure plate monitoring device to overcome the problem that the existing technology cannot monitor the aging degree of the pressure plate structure in a timely manner during operation, which affects the reliability of pressure plate engagement and disengagement monitoring.

[0007] To achieve the above objectives, this utility model provides an intelligent pressure plate monitoring device, comprising:

[0008] Base;

[0009] A knob, comprising a first knob and a second knob fixedly disposed on the surface of the base;

[0010] A tablet is disposed on the base;

[0011] One end of the pressure plate is fixedly sleeved with the second knob, and the other end is provided with an arc-shaped groove for engaging with the first knob. A fixing clip for fixing a magnet is provided in the middle of the pressure plate.

[0012] The arc-shaped groove is provided with several wave tooth groups, which are symmetrically arranged on both sides of the arc-shaped groove. The wave tooth groups near the bottom of the groove and the surface of the arc-shaped groove are provided with buffer pads, and the buffer pads are embedded with pressure sensors for monitoring the pressure fluctuation of the buffer pads.

[0013] The intelligent monitoring component is mounted on the base and includes a card holder, a hollow iron sheet with a wire sleeve, and a spring disposed between the side wall of the card holder and the hollow iron sheet. The wires are provided with connecting terminals at both ends, and the card holder has through holes symmetrically arranged on both sides. The through holes are provided with output terminals for connecting to the monitoring station.

[0014] Furthermore, the base is also equipped with an indicator light connected to the pressure sensor for early warning.

[0015] Furthermore, the pressing plate also includes a handle disposed on the surface of the fixing fixture for driving the pressing plate to rotate.

[0016] Furthermore, the handle is made of polycarbonate.

[0017] Furthermore, the diameter of the opening of the arc-shaped groove is larger than the diameter of the first knob, and the bottom diameter of the arc-shaped groove is smaller than the diameter of the first knob.

[0018] Furthermore, several wave-shaped tooth groups are arranged at equal intervals within the arc-shaped groove.

[0019] Furthermore, the tooth tip direction on one side of the wave tooth assembly is perpendicular to the surface of the arc-shaped groove, while the tooth tip direction on the other side is inclined towards the insertion direction.

[0020] Furthermore, the cushioning pad is made of silicone.

[0021] Furthermore, the output terminal is connected to the wire in the hollow iron sheet through the connection terminal.

[0022] Furthermore, the base is made of insulating material.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is equipped with a base, a knob, a pressure plate, and an intelligent monitoring component. The knob includes a first knob and a second knob fixedly mounted on the surface of the base. One end of the pressure plate is fixedly sleeved with the second knob, and the other end is provided with an arc-shaped groove for engaging with the first knob. A fixing clip for fixing a magnet is provided in the middle of the pressure plate. Several wave teeth are provided in the arc-shaped groove. A buffer pad is provided on the surface of the arc-shaped groove and the wave teeth near the bottom of the groove. A pressure sensor for monitoring the pressure fluctuation of the buffer pad is embedded in the buffer pad. The intelligent monitoring component includes a card holder, a hollow iron sheet with a wire sleeve, and a spring provided between the side wall of the card holder and the hollow iron sheet. Connecting terminals are provided at both ends of the wire. Through holes are symmetrically provided on both sides of the card holder. Output terminals for connecting to the monitoring station are provided in the through holes. Thus, the aging degree of the pressure plate structure can be monitored in a timely manner during operation, improving the reliability of the pressure plate engagement and disengagement monitoring.

[0024] In particular, this invention features a series of symmetrically arranged corrugated teeth within the arc-shaped groove. The unique shape of these teeth allows for a tighter and more irregular contact with the terminals, providing greater friction compared to a smooth arc-shaped groove. During operation, this effectively prevents terminals from shifting or falling off due to vibration or shaking, ensuring connection stability. Furthermore, the irregular shape of the corrugated teeth allows them to adapt to terminals of different sizes to a certain extent. Even with slight differences in terminal dimensions, the corrugated teeth can tightly fit the terminals, enhancing the versatility of the pressure plate and reducing the need to replace pressure plates with different specifications due to terminal size differences, thus lowering operating costs. The symmetrical arrangement of corrugated teeth within the arc-shaped groove also enables timely monitoring of the aging degree of the pressure plate structure during operation, improving the reliability of pressure plate engagement / disengagement monitoring.

[0025] In particular, this invention provides a buffer pad on the surface of the wave tooth assembly near the bottom of the groove and the arc-shaped groove. It can be understood that the buffer pad can fill the microscopic gap between the wave tooth and the groove, dispersing the concentrated stress to a larger contact surface. Its own viscoelastic deformation can absorb high-frequency vibration energy, reducing the resonance amplitude caused by insertion and withdrawal, and extending the service life of the pressure plate. The pre-compression deformation of the buffer pad can stabilize the insertion and withdrawal force within a small range, avoiding excessive tightness causing jamming or excessive looseness causing slippage. By providing a buffer pad on the surface of the wave tooth assembly near the bottom of the groove and the arc-shaped groove, this invention enables timely monitoring of the aging degree of the pressure plate structure during operation, improving the reliability of pressure plate insertion and withdrawal monitoring.

[0026] In particular, this invention embeds a pressure sensor within the buffer pad to monitor pressure fluctuations in the buffer pad. It is understood that the pressure sensor can provide real-time feedback on the pressure fluctuations of the buffer pad during the engagement and disengagement process. When the engagement between the pressure plate and the terminal is normal, the pressure fluctuations of the buffer pad should be relatively consistent across several engagement and disengagement processes. When abnormal pressure fluctuations occur, it can reflect the wear degree of the structural components at the groove, allowing for timely replacement of the structural components according to the degree of wear. This invention, by embedding a pressure sensor within the buffer pad to monitor pressure fluctuations, achieves timely monitoring of the aging degree of the pressure plate structure during operation, thereby improving the reliability of pressure plate engagement and disengagement monitoring.

[0027] In particular, the present invention sets wave teeth in the arc-shaped groove at equal intervals. It can be understood that the equidistant wave teeth can make the contact pressure between the pressure plate and the terminal evenly distributed, avoid local stress concentration, and disperse vibration energy through the principle of "frequency mismatch", thereby reducing wear on the structure. The present invention sets wave teeth in the arc-shaped groove at equal intervals, thereby enabling timely monitoring of the aging degree of the pressure plate structure during operation and improving the reliability of pressure plate engagement and disengagement monitoring.

[0028] In particular, this invention features a wave tooth assembly where the tooth tip direction on one side is perpendicular to the surface of the arc-shaped groove, while the tooth tip direction on the other side is inclined towards the insertion direction. This allows the tooth tip perpendicular to the arc-shaped groove to form a strong engagement with the terminal, resisting reverse pull-out force. The tooth tip inclined towards the insertion direction reduces insertion and extraction resistance through the inclined surface effect and can prevent retraction using a self-locking principle. Furthermore, by having the tooth tip direction on one side of the wave tooth assembly perpendicular to the surface of the arc-shaped groove and the tooth tip direction on the other side inclined towards the insertion direction, this invention enables timely monitoring of the aging degree of the pressure plate structure during operation, improving the reliability of pressure plate engagement / retraction monitoring. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the intelligent pressure plate monitoring device according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram showing the operational status of the intelligent pressure plate monitoring device according to an embodiment of this utility model;

[0031] Figure 3 This is a schematic diagram of the arc-shaped groove in an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the intelligent monitoring component according to an embodiment of the present utility model;

[0033] In the diagram, 1-base; 2-first knob; 3-second knob; 4-pressure plate; 5-arc groove; 6-fixing clamp; 7-handle; 8-magnet; 9-intelligent monitoring component; 10-output terminal; 11-indicator light; 12-wave tooth assembly; 13-buffer pad; 14-spring; 15-connection terminal; 16-hollow iron sheet; 17-wire. Detailed Implementation

[0034] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0035] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0036] It should be noted that in the description of this utility model, the terms "upper", "lower", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0037] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Please see Figures 1 to 4 As shown, Figure 1 This is a schematic diagram of the intelligent pressure plate monitoring device according to an embodiment of the present invention. Figure 2 This is a schematic diagram showing the operational status of the intelligent pressure plate monitoring device according to an embodiment of this utility model. Figure 3 This is a schematic diagram of the arc-shaped groove in an embodiment of the present invention. Figure 4 This is a schematic diagram of the intelligent monitoring component according to an embodiment of the present invention. An intelligent pressure plate monitoring device of the present invention includes:

[0039] Base 1;

[0040] The knob includes a first knob 2 and a second knob 3 that are fixedly disposed on the surface of the base 1;

[0041] Tablet 4 is disposed on the base 1;

[0042] One end of the pressure plate 4 is fixedly sleeved with the second knob 3, and the other end is provided with an arc-shaped groove 5 for engaging with the first knob 2. The middle part of the pressure plate 4 is provided with a fixing clip 6 for fixing the magnet 8.

[0043] The arc-shaped groove 5 is provided with a plurality of wave tooth groups 12, which are symmetrically arranged on both sides of the arc-shaped groove 5. The wave tooth groups 12 near the bottom of the groove and the surface of the arc-shaped groove 5 are provided with buffer pads 13, and the buffer pads 13 are embedded with pressure sensors for monitoring pressure fluctuations.

[0044] Specifically, this invention features a series of symmetrically arranged corrugated teeth within an arc-shaped groove. The unique shape of these teeth allows for a tighter and more irregular contact with the terminals, providing greater friction compared to a smooth arc-shaped groove. During operation, this effectively prevents terminals from shifting or falling off due to vibration or shaking, ensuring connection stability. Furthermore, the irregular shape of the corrugated teeth allows them to adapt to terminals of different sizes to a certain extent. Even with slight differences in terminal dimensions, the corrugated teeth can tightly fit the terminals, enhancing the versatility of the pressure plate and reducing the need to replace pressure plates with different specifications due to terminal size differences, thus lowering operating costs. The symmetrical arrangement of corrugated teeth within the arc-shaped groove also enables timely monitoring of the aging degree of the pressure plate structure during operation, improving the reliability of pressure plate engagement / disengagement monitoring.

[0045] Specifically, this invention provides a buffer pad on the surface of the wave-tooth assembly near the bottom of the groove and the arc-shaped groove. It is understood that the buffer pad can fill the microscopic gap between the wave-tooth assembly and the groove, dispersing concentrated stress to a larger contact surface. Its own viscoelastic deformation can absorb high-frequency vibration energy, attenuating the resonance amplitude caused by insertion and withdrawal, and extending the service life of the pressure plate. The pre-compression deformation of the buffer pad can stabilize the insertion and withdrawal force within a small range, preventing excessive tightness leading to jamming or excessive looseness leading to slippage. By providing a buffer pad on the surface of the wave-tooth assembly near the bottom of the groove and the arc-shaped groove, this invention enables timely monitoring of the aging degree of the pressure plate structure during operation, improving the reliability of pressure plate insertion and withdrawal monitoring.

[0046] Specifically, this invention embeds a pressure sensor within the buffer pad to monitor pressure fluctuations in the buffer pad. It can be understood that the pressure sensor can provide real-time feedback on pressure fluctuations in the buffer pad during the engagement and disengagement process. When the engagement between the pressure plate and the terminal is normal, the pressure fluctuations of the buffer pad should be relatively consistent across several engagement and disengagement processes. When abnormal pressure fluctuations occur, it can reflect the wear degree of the structural components at the groove, allowing for timely replacement of the structural components according to the degree of wear. This invention, by embedding a pressure sensor within the buffer pad to monitor pressure fluctuations, achieves timely monitoring of the aging degree of the pressure plate structure during operation, thereby improving the reliability of pressure plate engagement and disengagement monitoring.

[0047] The intelligent monitoring component 9 is mounted on the base 1 and includes a card holder, a hollow iron sheet 16 with a wire 18 sleeved on it, and a spring 14 disposed between the side wall of the card holder and the hollow iron sheet 16. The wire 18 is provided with connecting terminals 15 at both ends. The card holder is provided with through holes on both sides, and the through holes are provided with output terminals 10 for connecting to the monitoring station.

[0048] Specifically, the base 1 is also provided with an indicator light 11 connected to the pressure sensor for early warning.

[0049] Specifically, the pressing plate 4 also includes a handle 7 disposed on the surface of the fixing clamp 6 for driving the pressing plate 4 to rotate.

[0050] Specifically, the handle 7 is made of polycarbonate.

[0051] Specifically, the diameter of the opening of the arc-shaped groove 5 is larger than the diameter of the first knob 2, and the bottom diameter of the arc-shaped groove 5 is smaller than the diameter of the first knob 2.

[0052] Specifically, several wave-shaped tooth groups are arranged at equal intervals within the arc-shaped groove 5.

[0053] Specifically, this invention uses wave teeth arranged at equal intervals within the arc-shaped grooves. It can be understood that the equidistant wave teeth arrangement can evenly distribute the contact pressure between the pressure plate and the terminal, avoiding localized stress concentration. It can also disperse vibration energy through the principle of "frequency mismatch," reducing wear on the structure. Furthermore, by using wave teeth arranged at equal intervals within the arc-shaped grooves, this invention enables timely monitoring of the aging degree of the pressure plate structure during operation, thereby improving the reliability of pressure plate engagement and disengagement monitoring.

[0054] Specifically, the tooth tip direction on one side of the wave tooth group 12 is perpendicular to the surface of the arc-shaped groove 5, while the tooth tip direction on the other side is inclined towards the insertion direction.

[0055] Specifically, this invention features a wave-tooth assembly where the tooth tips on one side are perpendicular to the surface of the arc-shaped groove, while the tooth tips on the other side are inclined towards the insertion direction. This allows the tooth tips perpendicular to the arc-shaped groove to form a strong engagement with the terminal, resisting reverse pull-out force. The tooth tips inclined towards the insertion direction reduce insertion and extraction resistance through the inclined surface effect and can prevent retraction using a self-locking principle. Furthermore, by having the tooth tips on one side of the wave-tooth assembly perpendicular to the surface of the arc-shaped groove and the tooth tips on the other side inclined towards the insertion direction, this invention enables timely monitoring of the aging degree of the pressure plate structure during operation, improving the reliability of pressure plate engagement / retraction monitoring.

[0056] Specifically, the angle at which the tooth tip is tilted toward the insertion direction can be 45 degrees.

[0057] Specifically, the cushioning pad 13 is made of silicone.

[0058] Specifically, the output terminal 10 is connected to the wire 18 in the hollow iron sheet 16 through the connection terminal 15.

[0059] Specifically, the base 1 is made of insulating material.

[0060] Example:

[0061] Please continue reading. Figures 1 to 4 As shown;

[0062] The pressure plate 4 engages with the first knob 2 via the arc-shaped groove 5. The pressure plate 4 drives the magnet 8 to move. The magnetic force of the magnet 8 drives the hollow iron sheet 16 with the wire 18 attached to it to move towards the spring 14. The connecting terminals 15 at both ends of the wire 18 are connected to the output terminals 10, thereby connecting the output terminals 10 at both ends of the intelligent monitoring component 9. The monitoring station detects that the pressure plate is in the engaged state. During the process of the arc-shaped groove 5 engaging with the first knob 2, the pressure sensor obtains the pressure difference before and after engagement. When the pressure difference is less than the standard value (the standard value can be 15N), the indicator light 11 on the surface of the base 1 lights up, reminding the operator that the current pressure plate device has a risk of structural aging.

[0063] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

[0064] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An intelligent pressure plate monitoring device, characterized in that, include: Base; A knob, comprising a first knob and a second knob fixedly disposed on the surface of the base; A tablet is disposed on the base; One end of the pressure plate is fixedly sleeved with the second knob, and the other end is provided with an arc-shaped groove for engaging with the first knob. A fixing clip for fixing a magnet is provided in the middle of the pressure plate. The arc-shaped groove is provided with several wave tooth groups, which are symmetrically arranged on both sides of the arc-shaped groove. The wave tooth groups near the bottom of the groove and the surface of the arc-shaped groove are provided with buffer pads, and the buffer pads are embedded with pressure sensors for monitoring the pressure fluctuation of the buffer pads. The intelligent monitoring component is mounted on the base and includes a card holder, a hollow iron sheet with a wire sleeve, and a spring disposed between the side wall of the card holder and the hollow iron sheet. The wires are provided with connecting terminals at both ends, and the card holder has through holes symmetrically arranged on both sides. The through holes are provided with output terminals for connecting to the monitoring station.

2. The intelligent pressure plate monitoring device according to claim 1, characterized in that, The base is also equipped with an indicator light connected to the pressure sensor for early warning.

3. The intelligent pressure plate monitoring device according to claim 1, characterized in that, The pressing plate also includes a handle disposed on the surface of the fixing fixture for driving the pressing plate to rotate.

4. The intelligent pressure plate monitoring device according to claim 3, characterized in that, The handle is made of polycarbonate.

5. The intelligent pressure plate monitoring device according to claim 1, characterized in that, The diameter of the opening of the arc-shaped groove is larger than the diameter of the first knob, and the diameter of the bottom of the arc-shaped groove is smaller than the diameter of the first knob.

6. The intelligent pressure plate monitoring device according to claim 5, characterized in that, Several wave-shaped tooth groups are arranged at equal intervals within the arc-shaped groove.

7. The intelligent pressure plate monitoring device according to claim 6, characterized in that, The tooth tip direction on one side of the wave tooth assembly is perpendicular to the surface of the arc-shaped groove, while the tooth tip direction on the other side is inclined towards the insertion direction.

8. The intelligent pressure plate monitoring device according to claim 7, characterized in that, The cushioning pad is made of silicone.

9. The intelligent pressure plate monitoring device according to claim 1, characterized in that, The output terminal is connected to the wire in the hollow iron sheet through the connection terminal.

10. The intelligent pressure plate monitoring device according to claim 9, characterized in that, The base is made of insulating material.

Citation Information

Patent Citations

  • CN218002562U