CN215526647U - Jig for detecting burning instrument and detecting burning instrument - Google Patents
Jig for detecting burning instrument and detecting burning instrument Download PDFInfo
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- CN215526647U CN215526647U CN202121046502.XU CN202121046502U CN215526647U CN 215526647 U CN215526647 U CN 215526647U CN 202121046502 U CN202121046502 U CN 202121046502U CN 215526647 U CN215526647 U CN 215526647U
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Abstract
The utility model discloses a jig for detecting a burning instrument and the detecting burning instrument, wherein the jig for detecting the burning instrument comprises a base, a base and a burning instrument body, wherein the base is provided with a bearing surface, an installation surface and a connection surface, the bearing surface is arranged oppositely, the connection surface is used for connecting the bearing surface and the installation surface, the bearing surface is provided with a positioning groove, the connection surface is provided with a mounting groove, and the wall of the mounting groove, which is close to the bearing surface, is provided with a connection channel communicated with the bottom of the positioning groove; the bearing plate is arranged at the bottom of the positioning groove; one end of the ejector rod is fixedly connected with the bearing plate, and the other end of the ejector rod penetrates through the connecting channel and extends into the mounting groove; and the driving component is arranged in the mounting groove and is used for driving the ejector rod to slide in the connecting channel along the direction close to or far away from the positioning groove. Compared with the prior art, the utility model is convenient for taking the circuit board out of the positioning groove.
Description
Technical Field
The utility model relates to the technical field of detection burning instruments, in particular to a jig for detecting a burning instrument and the detection burning instrument.
Background
With the development of science and technology, more and more electronic products are applied to the daily life of people. Before the electronic product leaves the factory, a program needs to be burned to the circuit board matched with the electronic product by using the burning device, so that the electronic product can realize the set function.
Generally, a jig is used to fix a circuit board to be burned, and a positioning groove matched with the circuit board is formed on the surface of the jig. When the circuit board is burned, the circuit board is placed in the positioning groove. After the circuit board is burned, a finger or a tool needs to be inserted into a gap between the wall of the positioning groove and the periphery of the circuit board to pull out the circuit board from the positioning groove, so that the circuit board is inconvenient to be taken out from the jig, and improvement is needed urgently.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a jig for detecting a recorder, which aims to conveniently take out a circuit board from a positioning groove.
In order to achieve the above object, the present invention provides a jig for detecting a recorder, including:
the base is provided with a bearing surface, a mounting surface and a connecting surface, wherein the bearing surface and the mounting surface are arranged oppositely, the connecting surface is used for connecting the bearing surface and the mounting surface, the bearing surface is provided with a positioning groove, the connecting surface is provided with a mounting groove, and a connecting channel communicated with the bottom of the positioning groove is arranged on the groove wall of the mounting groove, which is close to the bearing surface;
the bearing plate is arranged at the bottom of the positioning groove;
one end of the ejector rod is fixedly connected with the bearing plate, and the other end of the ejector rod penetrates through the connecting channel and extends into the mounting groove;
and the driving component is arranged in the mounting groove and is used for driving the ejector rod to slide in the connecting channel along the direction close to or far away from the positioning groove.
In an embodiment of the utility model, a first inclined surface is arranged at one end of the ejector rod, which is far away from the bearing plate, and the first inclined surface is arranged towards a notch of the mounting groove;
the driving component is a push rod, and the push rod is movably arranged in the mounting groove along the direction close to or far away from the notch of the mounting groove.
In an embodiment of the present invention, the bottom of the mounting groove is spaced from the connecting channel;
the push rod is close to the one end of the tank bottom of mounting groove is equipped with the second inclined plane, the second inclined plane orientation first inclined plane and with first inclined plane parallel arrangement.
In an embodiment of the utility model, the jig for detecting the burning instrument further includes a screw and a limiting disc, one end of the screw is connected with the connecting surface, the other end of the screw extends in a direction away from the connecting surface, and the limiting disc is in threaded connection with the screw and is abutted against one side of the push rod, which is back to the bottom of the mounting groove.
In an embodiment of the utility model, the driving member is a pressing rod, one end of the pressing rod in the extending direction is pivotally connected to one end of the top rod away from the bearing plate, the other end of the pressing rod in the extending direction extends out of a notch of the mounting groove, and a position between two ends of the pressing rod in the extending direction is pivotally connected to the mounting groove.
In an embodiment of the utility model, the jig for detecting the burning instrument further comprises a fixing plate and a screw connector, the fixing plate is mounted at a position, between the mounting groove and the bearing surface, of the connecting surface, and the fixing plate is provided with a threaded hole; the screw connecting piece is in threaded connection with the threaded hole, and the screw connecting piece is also abutted to the position of the bearing surface on one end, extending out of the mounting groove, of the pressing rod.
In an embodiment of the utility model, a distance between one end of the top bar, which is far away from the bearing plate, and a groove wall of the mounting groove, which is close to the bearing surface, is greater than or equal to a distance between one side of the bearing plate, which faces the bearing surface, and the bearing surface.
In an embodiment of the utility model, a notch is disposed at an edge of the bearing plate.
In an embodiment of the utility model, the top bar is fixedly connected with the middle part of the bearing plate.
The utility model also provides a detection burning instrument which comprises the jig for detecting the burning instrument.
According to the technical scheme, through the setting of the bearing plate, the ejector rod and the driving component, when the circuit board needs to be taken out of the positioning groove, the driving component drives the ejector rod to slide in the connecting channel along the direction close to the positioning groove, the bearing plate is driven to move towards the notch of the positioning groove, and the circuit board is ejected out of the positioning groove. Compared with the prior art, the utility model is convenient for taking the circuit board out of the positioning groove.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a fixture for detecting a recorder according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another embodiment of a fixture for detecting a recorder in the present invention;
FIG. 3 is a schematic view of the push rod of FIG. 2 applying a force to the ram;
fig. 4 is a schematic structural diagram of a fixture for detecting a recorder according to another embodiment of the utility model.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 1000 | Jig for detecting |
300 | |
|
| 100 | |
310 | First |
|
| | Bearing surface | 400 | |
|
| | Mounting surface | 410 | Second |
|
| | Connecting surface | 500 | |
|
| 110 | Locating |
550 | |
|
| 120 | |
600 | |
|
| 130 | Connecting |
700 | |
|
| 200 | |
750 | |
|
| 210 | Gap |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a fixture 1000 for detecting a recorder, the fixture 1000 comprising: a base 100, a carrier plate 200, a top bar 300 and a driving member.
The base 100 has a mounting surface 100a and a mounting surface 100b disposed opposite to each other, and a connecting surface 100c connecting the mounting surface 100a and the mounting surface 100 b. The base 100 may be disposed in a cylindrical shape, the base 100 may also be disposed in an N-prism shape, N is a positive integer greater than or equal to 3, for example: n is equal to 3, the base 100 is arranged in a triangular prism; for another example: n is equal to 4, and the base 100 is rectangular.
The carrying surface 100a has a positioning groove 110, and the positioning groove 110 is used for positioning a circuit board to be burned. The attachment surface 100c is provided with a mounting groove 120, and the mounting groove 120 provides a mounting space for the driving member. The groove wall of the mounting groove 120 near the bearing surface 100a is provided with a connecting channel 130 communicated with the bottom of the positioning groove 110.
The supporting plate 200 is disposed at the bottom of the positioning groove 110. The size of the cross section of the supporting plate 200 may be adapted to the size of the cross section of the positioning slot 110, so that the supporting plate 200 can slide in the positioning slot 110 in a direction close to or far from the notch of the positioning slot 110, and the size of the cross section of the supporting plate 200 may also be smaller than the size of the cross section of the positioning slot 110.
One end of the push rod 300 is fixedly connected to the bearing plate 200, and the other end of the push rod 300 passes through the connecting channel 130 and extends into the mounting groove 120. The size of the cross-section of the plunger 300 is adapted to the size of the cross-section of the connecting channel 130 so that the plunger 300 can slide within the connecting channel 130 in a direction toward or away from the positioning groove 110. In addition, the top bar 300 may directly abut against the carrier plate 200.
The driving member is installed in the installation groove 120, and the driving member is used to drive the push rod 300 to slide in the connection channel 130 in a direction approaching to or departing from the positioning groove 110.
Through the above technical scheme, when burning the circuit board, firstly, fixing the jig 1000 for detecting the burning instrument on the workbench for detecting the burning instrument, and placing the circuit board on the bearing plate 200 of the positioning groove 110; then, a driving mechanism on the detection burning instrument drives the metal probe to descend until the metal probe is contacted with a burning test point on the circuit board, so that burning equipment on the detection burning instrument is electrically connected with the circuit board through the metal probe; and then, starting the burning equipment on the detection burning instrument to burn the circuit board.
After the burning of the circuit board is finished, firstly, a driving mechanism on the detection burning instrument drives the metal probes to ascend to be arranged at intervals with the circuit board; then, the top bar 300 is driven by the driving member to slide in the connecting channel 130 in a direction close to the positioning slot 110, so as to drive the carrier plate 200 to move towards the notch of the positioning slot 110, thereby ejecting the circuit board from the positioning slot 110.
Specifically, the connecting channel 130 is perpendicular to the bottom of the positioning groove 110, and the connecting channel 130 is perpendicular to the wall of the mounting groove 120 near the bearing surface 100a, so as to facilitate the driving member to drive the top rod 300 to slide along the connecting channel 130.
It should be noted that, on the premise that the circuit board can be ejected from the positioning groove 110, the circuit board may be directly ejected from the positioning groove 110 through the ejector rod 300 without the carrier plate 200.
In some embodiments of the present invention, referring to fig. 1, an end of the top rod 300 away from the supporting plate 200 is provided with a first inclined surface 310, the first inclined surface 310 is disposed towards a groove wall of the mounting groove 120 away from the positioning groove 110, and the first inclined surface 310 is further disposed towards a notch of the mounting groove 120.
Specifically, one side of the first inclined surface 310 close to the carrying surface 100a is flush with a groove wall of the mounting groove 120 close to the carrying surface 100a, and one side of the first inclined surface 310 close to the mounting surface 100b is flush with a groove wall of the mounting groove 120 close to the mounting surface 100 b. In addition, the side of the first inclined surface 310 close to the carrying surface 100a may also extend into the connecting channel 130.
The angle between the first inclined surface 310 and the horizontal plane may be 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, etc., which are not necessarily enumerated herein.
The driving member is a push rod 400, and the push rod 400 is movably installed in the installation groove 120 in a direction approaching or departing from the notch of the installation groove 120.
Specifically, the size of the cross section of the push rod 400 in the direction from the bearing surface 100a to the mounting surface 100b is matched with the size of the cross section of the mounting groove 120 in the direction from the bearing surface 100a to the mounting surface 100b, so as to facilitate sliding in the mounting groove 120 in a direction close to or far away from the notch of the mounting groove 120. In addition, the cross-sectional size of the push rod 400 in the direction from the mounting surface 100a to the mounting surface 100b may be smaller than the cross-sectional size of the mounting groove 120 in the direction from the mounting surface 100a to the mounting surface 100 b.
Through the above technical scheme, when the circuit board needs to be taken out of the positioning groove 110, the push rod 400 is pushed towards the groove bottom of the mounting groove 120 until the push rod 400 abuts against the first inclined surface 310, the end portion, close to the bearing surface 100a, of one side of the push rod 400, facing the groove bottom of the mounting groove 120 slides along the first inclined surface 310, and then the push rod 300 is driven to slide in the connecting channel 130 along the direction close to the positioning groove 110, so as to drive the bearing plate 200 to move towards the notch of the positioning groove 110, and eject the circuit board out of the positioning groove 110. After the circuit board is ejected out of the positioning groove 110, the push rod 400 is pulled toward the notch of the mounting groove 120 until the push rod 400 is separated from the top rod 300, and the end of the top rod 300 away from the bearing plate 200 and the bearing plate 200 are both restored to the initial position.
Considering that the end of the push rod 400 slides along the first inclined surface 310 so that the stability of the push rod 300 when sliding is to be enhanced, in order to enhance the stability of the push rod 300 when sliding, in some embodiments of the present invention, referring to fig. 2, the groove bottom of the mounting groove 120 is spaced apart from the connecting channel 130 so that the connecting channel 130 communicates with the mounting groove 120 at a position between the notch and the groove bottom.
The end of the push rod 400 adjacent to the bottom of the mounting groove 120 is provided with a second inclined surface 410, and the second inclined surface 410 faces the first inclined surface 310 and is parallel to the first inclined surface 310.
Through the above technical scheme, the push rod 400 is pushed towards the groove bottom of the mounting groove 120 until the second inclined surface 410 abuts against the first inclined surface 310, the second inclined surface 410 slides along the first inclined surface 310, and then the push rod 300 is driven to slide in the connecting channel 130 along the direction close to the positioning groove 110, so that the stability of the push rod 300 during sliding can be enhanced.
Considering that the push rod 400 can indirectly apply an acting force to the bearing plate 200 through the push rod 300 if the push rod 400 can apply an acting force to one end of the push rod 400 away from the push rod 300 in the process of driving the push rod 300 and the bearing plate 200 to slide, so that the bearing plate 200 stays at different depths of the positioning groove 110, and the distance between one side of the bearing plate 200 close to the bearing surface 100a and the bearing surface 100a can be adjusted, so as to be adapted to fix circuit boards with different thicknesses.
The number of the screws 500 and the limiting discs 550 is the same, and each of the number of the screws may be 1, 2, 3, 4, 5, and so on, which is not limited herein.
It can be understood that the length of the push rod 400 is greater than the depth of the mounting groove 120, so that a part of the push rod 400 is always located outside the mounting groove 120, thereby conveniently limiting the end of the push rod 400 away from the top rod 300.
Through the above technical scheme, in the process that the second inclined surface 410 slides along the first inclined surface 310, the limiting disc 550 is screwed towards the mounting groove 120, so that the limiting disc 550 is abutted to one end, away from the top rod 300, of the push rod 400, and thus the end, away from the top rod 300, of the push rod 400 can be limited, the distance between one side, close to the bearing surface 100a, of the bearing plate 200 and the bearing surface 100a can be adjusted, and the second inclined surface 410 is adapted to fixing circuit boards with different thicknesses.
In some embodiments of the present invention, referring to fig. 4, the driving member is a pressing rod 600, one end of the pressing rod 600 in the extending direction is pivotally connected to one end of the top rod 300 away from the supporting plate 200, the other end of the pressing rod 600 in the extending direction extends out of the notch of the mounting groove 120, and a position between the two ends of the pressing rod 600 in the extending direction is pivotally connected to the mounting groove 120.
Specifically, the middle portion of the pressing rod 600 may be pivotally connected to the mounting groove 120, the trisection of the pressing rod 600 in the extending direction thereof may be pivotally connected to the mounting groove 120, and the tetrasection of the pressing rod 600 in the extending direction thereof may be pivotally connected to the mounting groove 120, which is not limited herein.
It should be noted that the position between the two ends of the pressure lever 600 in the extending direction may be directly pivoted with the groove wall of the mounting groove 120, and the position between the two ends of the pressure lever 600 in the extending direction may also be pivoted and mounted in the mounting groove 120 by means of other adapter, which is not limited herein.
In addition, the end of the pressing rod 600 far away from the top bar 300 can also be positioned in the mounting groove 120 near the notch of the mounting groove 120.
Through the above technical scheme, when the circuit board needs to be taken out of the positioning slot 110, the pressing rod 600 is rotated towards the mounting surface 100b, so as to drive the ejector rod 300 to slide in the connecting channel 130 along the direction close to the positioning slot 110, and drive the bearing plate 200 to move towards the notch of the positioning slot 110, so as to eject the circuit board from the positioning slot 110. After the circuit board is ejected from the positioning groove 110, the pressing rod 600 is rotated toward the carrying surface 100a, and the ejector rod 300 is driven to return to the initial position.
Considering that the pressing rod 600 can indirectly apply an acting force to the bearing plate 200 through the top rod 300 if the acting force can be applied to one end of the pressing rod 600 away from the top rod 300 in the process of driving the top rod 300 to slide, so that the bearing plate 200 stays at different depths of the positioning groove 110, the distance between one side of the bearing plate 200 close to the bearing surface 100a and the bearing surface 100a can be adjusted, and further the bearing plate is adapted to fix circuit boards with different thicknesses, in some embodiments of the present invention, please refer to fig. 3, the jig 1000 for detecting a recorder further includes a fixing plate 700 and a screw 750, the fixing plate 700 is installed at a position where the connecting surface 100c is located between the mounting groove 120 and the bearing surface 100a, and the fixing plate 700 is provided with a threaded hole; the screw member 750 is screwed into the screw hole, and the screw member 750 is further abutted to the end of the pressing rod 600 extending out of the mounting groove 120, which faces the bearing surface 100 a.
The screw 750 may be a bolt, a screw 500, etc., and is not particularly limited thereto.
Through the technical scheme, in the rotating process of the pressure lever 600, the screw joint 750 is rotated towards the pressure lever 600, so that the screw joint 750 is abutted to the position of the bearing surface 100a on the end, extending out of the mounting groove 120, of the pressure lever 600, the end, far away from the push rod 300, of the pressure lever 600 can be limited, the distance between one side, close to the bearing surface 100a, of the bearing plate 200 and the bearing surface 100a can be adjusted, and the pressure lever 600 is further adapted to fixing circuit boards with different thicknesses.
In order to ensure that the lift pin 300 can drive the loading board 200 to eject the circuit board from the positioning slot 110, in some embodiments of the utility model, a distance between one end of the lift pin 300 away from the loading board 200 and a wall of the mounting groove 120 close to the loading surface 100a is greater than or equal to a distance between one side of the loading board 200 facing the loading surface 100a and the loading surface 100 a.
In order to facilitate the circuit board to be taken down from the loading board 200 after the top bar 300 drives the loading board 200 to eject the circuit board from the positioning slot 110, in some embodiments of the utility model, a notch 210 is provided at the edge of the loading board 200, so that after the top bar 300 drives the loading board 200 to eject the circuit board from the positioning slot 110, a hand can be extended to the notch 210 to take the circuit board down from the loading board 200.
In order to enhance the stability when the carrier plate 200 is driven by the lift pin 300, in some embodiments of the present invention, the lift pin 300 is fixedly connected to the middle portion of the carrier plate 200.
In addition, the top bar 300 can also be connected to other positions of the bearing plate 200, such as: the location on the carrier plate 200 near its edge, and so on.
The utility model also provides a detection burning instrument, which comprises the jig 1000 for detecting the burning instrument.
The specific structure of the fixture 1000 for detecting a recorder refers to the above embodiments, and since the detecting recorder adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and are not described in detail herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a detect tool of burning record appearance which characterized in that includes:
the base is provided with a bearing surface, a mounting surface and a connecting surface, wherein the bearing surface and the mounting surface are arranged oppositely, the connecting surface is used for connecting the bearing surface and the mounting surface, the bearing surface is provided with a positioning groove, the connecting surface is provided with a mounting groove, and a connecting channel communicated with the bottom of the positioning groove is arranged on the groove wall of the mounting groove, which is close to the bearing surface;
the bearing plate is arranged at the bottom of the positioning groove;
one end of the ejector rod is fixedly connected with the bearing plate, and the other end of the ejector rod penetrates through the connecting channel and extends into the mounting groove;
and the driving component is arranged in the mounting groove and is used for driving the ejector rod to slide in the connecting channel along the direction close to or far away from the positioning groove.
2. The fixture for detecting the burning instrument as claimed in claim 1, wherein a first inclined surface is disposed at an end of the rod away from the bearing plate, and the first inclined surface is disposed toward the notch of the mounting groove;
the driving component is a push rod, and the push rod is movably arranged in the mounting groove along the direction close to or far away from the notch of the mounting groove.
3. The fixture for detecting the burning instrument as claimed in claim 2, wherein the bottom of the mounting groove is spaced from the connecting channel;
the push rod is close to the one end of the tank bottom of mounting groove is equipped with the second inclined plane, the second inclined plane orientation first inclined plane and with first inclined plane parallel arrangement.
4. The fixture for detecting the burning instrument as claimed in claim 2, further comprising a screw and a limiting disc, wherein one end of the screw is connected to the connecting surface, the other end of the screw extends in a direction away from the connecting surface, and the limiting disc is in threaded connection with the screw and abuts against one side of the push rod opposite to the bottom of the mounting groove.
5. The fixture for detecting the recorder of claim 1, wherein the driving member is a pressing rod, one end of the pressing rod in the extending direction is pivotally connected to one end of the top rod away from the bearing plate, the other end of the pressing rod in the extending direction extends out of the notch of the mounting groove, and a position between two ends of the pressing rod in the extending direction is pivotally connected to the mounting groove.
6. The fixture for detecting the burning instrument as claimed in claim 5, further comprising a fixing plate and a screw member, wherein the fixing plate is mounted on the connecting surface between the mounting groove and the bearing surface, and the fixing plate has a threaded hole; the screw connecting piece is in threaded connection with the threaded hole, and the screw connecting piece is also abutted to the position of the bearing surface on one end, extending out of the mounting groove, of the pressing rod.
7. The fixture for detecting the burning instrument as claimed in claim 1, wherein the distance between the end of the rod away from the bearing plate and the wall of the mounting groove close to the bearing surface is greater than or equal to the distance between the bearing surface and the side of the bearing plate facing the bearing surface.
8. The fixture for detecting the burning instrument as claimed in claim 1, wherein a notch is formed at an edge of the supporting plate.
9. The fixture for detecting the burning instrument as claimed in claim 1, wherein the lift rod is fixedly connected to the middle portion of the bearing plate.
10. A test recorder comprising the apparatus of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121046502.XU CN215526647U (en) | 2021-05-14 | 2021-05-14 | Jig for detecting burning instrument and detecting burning instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121046502.XU CN215526647U (en) | 2021-05-14 | 2021-05-14 | Jig for detecting burning instrument and detecting burning instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215526647U true CN215526647U (en) | 2022-01-14 |
Family
ID=79804392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121046502.XU Active CN215526647U (en) | 2021-05-14 | 2021-05-14 | Jig for detecting burning instrument and detecting burning instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215526647U (en) |
-
2021
- 2021-05-14 CN CN202121046502.XU patent/CN215526647U/en active Active
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