A WIFI module detection device
By independently setting up the WIFI module detection device of the module mount and probe mount, the problems of low detection efficiency and probe damage and scrapping in the prior art are solved, and efficient detection of multiple types of modules and long-life use of the device are achieved.
Patent Information
- Application Number
- CN202210647252.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-09
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2042-06-09
AI Technical Summary
The existing WIFI module detection device can only detect one type of module, which has low detection efficiency and the entire set of devices is scrapped when the probe is damaged, and has a short service life.
A WIFI module detection device is designed, and the module mount and the probe mount are independently set. By replacing the module mount, the probe can be detached and replaced, and automated testing is achieved using downward assembly and controller.
It realizes efficient detection of various types of WIFI modules, reduces production costs, extends the service life of the detection device, and improves detection efficiency and operation consistency.
Smart Images

Figure CN115276834B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electrical communication components, and in particular to a WIFI module detection device. Background Art
[0002] Before use, Wi-Fi modules require functional testing, necessitating a Wi-Fi module testing device. This device mimics the testing methods used on PCB motherboards, utilizing the Wi-Fi module in contact with the device's probes to perform operational testing, including program programming, power connections, and communication verification. This method allows for rapid Wi-Fi module testing. By pressing the device downward to electrically connect the module to the probe, the device is lifted to complete the test and the next Wi-Fi module can be replaced. This method is ideal for comprehensive inspections.
[0003] At present, Chinese patent CN201711500439.0 discloses a test device for manually detecting WIFI modules. This patented technology sets a power pin on the table to provide power to the WIFI module and a radio frequency head high-frequency probe to transmit test signals to the WIFI module. The power contacts and signal contacts on the WIFI module correspond to the positions of the power pin and the radio frequency head high-frequency probe, respectively. Then, the cables connected to the power pin and the radio frequency head high-frequency probe are respectively plugged into the corresponding interfaces on the test equipment for testing. Although the above-mentioned detection device can detect WIFI modules, the layout of the power pin and the radio frequency head high-frequency probe of the above-mentioned detection device cannot be changed. One detection device is only suitable for detecting one type of WIFI module, and the detection efficiency is low. Summary of the Invention
[0004] The present invention aims to overcome the shortcomings of the prior art and provide a WIFI module detection device, which is suitable for detecting various types of WIFI modules, effectively improves the detection efficiency of WIFI modules, and has the advantages of low production cost and long service life.
[0005] An object of the present invention is to provide an air conditioner.
[0006] To achieve the above objectives, the present invention provides the following technical solutions:
[0007] Provided is a WIFI module detection device, comprising:
[0008] Module mounting seat, which is used to place the WIFI module to be tested;
[0009] A probe mounting seat is provided with a needle seat, on which a probe is provided, the probe pointing to the probe contact of the module mounting seat, and the probe can be connected to the probe contact;
[0010] A pressing assembly that drives the module mounting seat toward or away from the probe mounting seat;
[0011] A controller is connected to the pressing assembly and controls the moving path of the pressing assembly.
[0012] In some embodiments, the probe mount is provided with a guide bearing sleeve, the guide bearing sleeve is adapted to be equipped with a guide column, the guide column is connected to the module mount, the guide column sleeve is provided with a buffer spring, and the two ends of the buffer spring are respectively abutted against the module mount and the probe mount.
[0013] In some embodiments, the probe mounting seat includes a mounting plate, a surface of the mounting plate is provided with a mounting opening, an end portion of the guide bearing sleeve is embedded in the mounting opening, and an end portion of the buffer spring is positioned on the mounting opening.
[0014] In some embodiments, the needle hub comprises a plurality of needle cannulas,
[0015] The needle cannula includes a sealed end and an open end, and the sealed end and the open end are respectively located on both sides of the mounting plate. The sealed end is connected to the test connector, and the test connector can be connected to a test machine for detecting the WIFI module. The open end points to the module mounting seat, and the probe is detachably plugged into the needle cannula through the open end.
[0016] In some embodiments, the test connector includes a USB conversion connector, and the USB conversion connector is connected to the sealed end via a TTL line.
[0017] In some embodiments, the pressing assembly includes a clamping part, a pressing tool and a pressing cylinder. The pressing tool is detachably clamped by the clamping part. The clamping part is connected to the piston end of the pressing cylinder. The pressing tool is provided with a pressing rod and a high-frequency probe. The pressing rod points to the module mounting seat. The pressing cylinder drives the clamping part to move.
[0018] In some embodiments, the clamping portion includes a first side plate, a second side plate and a clamping cylinder, the first side plate and the second side plate are arranged opposite to each other, the piston end of the clamping cylinder is connected to the second side plate, the lower pressing device is located between the first side plate and the second side plate, and the clamping cylinder drives the second side plate to clamp toward the first side plate.
[0019] In some embodiments, a workbench is further included, which is arranged below the pressing assembly. A positioning groove is provided on the workbench, and a positioning plate is provided on the bottom of the probe mounting seat. The positioning plate is embedded in the positioning groove. The positioning plate is provided with a positioning bearing and a positioning column. One end of the positioning column is adapted to the positioning bearing, and the other end points to the probe mounting seat and is connected to the probe mounting seat.
[0020] In some embodiments, the module mounting seat includes a plate, a limiting groove is provided on the plate, the WIFI module is embedded in the limiting groove, and the probe contact is provided in the limiting groove.
[0021] Beneficial effects of a WIFI module detection device of the present invention:
[0022] (1) The WIFI module detection device of the present invention has a module mounting base and a probe mounting base that are independently provided. To detect different types of WIFI modules, the corresponding module mounting base can be replaced without replacing the entire detection device. This not only makes it universal for multiple types of WIFI modules but also saves production costs. Furthermore, because the detection device can be quickly adjusted to the appropriate detection device, detection efficiency is effectively improved.
[0023] (2) The WIFI module detection device of the present invention has a probe mounted on a needle holder. When the probe is damaged, only the probe needs to be replaced without replacing the entire probe mounting holder. This overcomes the problem of the traditional fixed probe arrangement where the entire detection device is directly scrapped due to probe damage, thereby increasing the service life of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 Schematic diagram of the tooling status of the module mounting base and the probe mounting base of the embodiment.
[0025] Figure 2 It is another visual schematic diagram of the tooling status of the module mounting base and the probe mounting base of the embodiment.
[0026] Figure 3 2 is a schematic structural diagram of a probe mounting base according to an embodiment.
[0027] Figure 4 2 is a schematic structural diagram of a pressing assembly according to an embodiment.
[0028] Figure 5 1 is a schematic structural diagram of a WIFI module detection device according to an embodiment.
[0029] Reference numerals
[0030] Module mounting seat 1; probe mounting seat 2, mounting plate 21; needle seat 3, needle sleeve 31, sealed end 310, open end 311; probe 4; probe contact 5; test connector 6, TTL line 61, USB conversion connector 62; pressing assembly 7; guide bearing sleeve 8; guide column 9; buffer spring 10; mounting port 11; clamping part 12; pressing tool 13; pressing cylinder 14; pressing rod 15; high-frequency probe 16; first side plate 17; second side plate 18; clamping cylinder 19; workbench 20; positioning groove 21; positioning plate 22; positioning bearing 23; positioning column 24; limit groove 25. DETAILED DESCRIPTION
[0031] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete and to fully convey the scope of the present invention to those skilled in the art.
[0032] The terms used in this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. As used in this invention and the appended claims, the singular forms "a" and "the" are intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.
[0033] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" means two or more, unless otherwise clearly and specifically defined.
[0034] Example 1
[0035] The existing technology has a power pin on the table that provides power to the Wi-Fi module and a radio frequency head high-frequency probe that transmits test signals to the Wi-Fi module. The power contacts and signal contacts on the Wi-Fi module correspond to the positions of the power pin and the radio frequency head high-frequency probe, respectively. The cables connected to the power pin and the radio frequency head high-frequency probe are then plugged into the corresponding interfaces on the test equipment for testing. Although the above-mentioned detection device can detect Wi-Fi modules, the layout of the power pin and the radio frequency head high-frequency probe cannot be changed. Therefore, one detection device is only suitable for detecting one type of Wi-Fi module, resulting in low detection efficiency.
[0036] In order to solve the above problems, the WIFI module detection device disclosed in this embodiment is: Figure 1-Figure 5 As shown, it includes a module mounting seat 1, a probe mounting seat 2, a needle seat 3, a test connector 6, a pressing component 7, and a controller.
[0037] The module mounting base 1 is used to place the Wi-Fi module to be tested. The probe mounting base 2 is provided with a needle holder 3, on which a probe 4 is removably inserted. The probe 4 points to the probe contact 5 of the module mounting base 1 and can be connected to the probe contact 5. One end of the test connector 6 is connected to the needle holder 3, and the other end can be connected to a test machine for testing Wi-Fi modules. A downward pressure component 7 drives the module mounting base 1 toward or away from the probe mounting base 2. A controller is connected to the downward pressure component 7 and controls its movement path.
[0038] The operating process of the above-mentioned WIFI module detection device is as follows: insert the probe 4 into the needle seat 3, install the module mounting seat 1 and the probe mounting seat 2 together, so that the probe 4 points to the probe contact 5 on the module mounting seat 1, place the WIFI module to be tested on the module mounting seat 1, plug the connection end of the tester into the test connector 6 to connect the tester to the probe 4, and press the down component 7 to drive the module mounting seat 1 close to the probe mounting seat 2 so that the probe 4 and the probe contact 5 on the module mounting seat 1 are in contact. The tester tests the WIFI module. When the test is completed, the down component 7 rises, so that the module mounting seat 1 is away from the probe mounting seat 2, and the probe 4 is separated from the probe contact 5 on the module mounting seat 1, thereby completing the test. Among them, the controller controls the movement path of the down component 7 during the test process according to the execution program to realize automated testing.
[0039] The controller is a PLC. The PLC is responsible for program logic. When the power is turned on, the mains voltage is stepped down and supplied to the PLC via a switch and fuse. The PLC outputs commands, which the relay receives and controls, controlling the movement of the push-down assembly 7 and its path.
[0040] The WIFI module detection device of this embodiment sets the module mounting seat 1 and the probe mounting seat 2 independently. For detecting different types of WIFI modules, it is sufficient to replace the corresponding module mounting seat 1 without replacing the entire detection device. It is not only universal for various types of WIFI modules, but also saves production costs. In addition, since the detection device can be quickly adjusted to a suitable detection device, the detection efficiency is effectively improved. The probe 4 and the needle seat 3 are detachably connected. When the probe 4 is damaged, only the probe 4 needs to be replaced without replacing the entire probe mounting seat 2. This overcomes the problem that when the traditional probe 4 is fixed, the entire detection device is directly scrapped due to damage to the probe 4, thereby improving the service life of the detection device. Since a test connector 6 is provided on the needle seat 3 and the test connector 6 is connected to the test machine, it is convenient for the probe 4 to be quickly connected to the test machine, overcoming the problem that the traditional probe 4 and the test machine can only be connected by wire end welding, which brings inconvenience in operation.
[0041] That is, this embodiment realizes automatic testing during the detection process, improves detection efficiency and ensures operation consistency, thereby ultimately improving the pass rate and enabling one device to detect different types of WIFI modules.
[0042] Example 2
[0043] For ease of understanding, an embodiment of a WIFI module detection device is provided below for illustration. In practical applications, Figure 1-Figure 3 As shown, the probe mounting seat 2 is provided with a guide bearing sleeve 8, and the guide bearing sleeve 8 is adapted to be equipped with a guide column 9, and the guide column 9 is connected to the module mounting seat. The guide column 9 is covered with a buffer spring 10, and the two ends of the buffer spring 10 are respectively in contact with the module mounting seat 1 and the probe mounting seat 2.
[0044] Since the probe mounting seat 2 is provided with a guide bearing sleeve 8, the guide bearing sleeve 8 is adapted to be equipped with a guide column 9, and the guide column 9 is covered with a buffer spring 10. When the probe mounting seat 2 is pressed down under the action of the module mounting seat 1, the guide column 9 and the buffer spring 10 play a supporting role and also a buffering role, so that the probe 4 on the probe mounting seat 2 can better contact the conductive contact, and at the same time the module mounting seat 1 will not crush the probe mounting seat 2.
[0045] In this embodiment, the probe mounting seat 2 includes a mounting plate 21 , a mounting opening 11 is opened on the plate surface of the mounting plate 21 , the end of the guide bearing sleeve 8 is embedded in the mounting opening 11 , and the end of the buffer spring 10 is positioned on the mounting opening 11 .
[0046] The mounting opening 11 on the surface of the mounting plate 21 provides a mounting position for the guide bearing sleeve 8 , and the mounting opening 11 also facilitates positioning of the buffer spring 10 .
[0047] The other components and principles of this embodiment are the same as those of Embodiment 1 and will not be described again here.
[0048] Example 3
[0049] For ease of understanding, the following provides an embodiment of a WIFI module detection device for illustration. Figure 1-Figure 3 As shown, the needle seat 3 includes several needle cannulas 31, and the needle cannulas 31 include a sealed end 310 and an open end 311. The sealed end 310 and the open end 311 are respectively located on both sides of the mounting plate 21. The sealed end 310 is connected to the test connector 6, and the open end 311 points to the module mounting seat 1. The probe 4 is detachably plugged into the needle cannula 31 through the open end 311.
[0050] One end of the needle cannula 31 is a sealed end 310 and the other end is an open end 311. The probe 4 is conveniently inserted from the open end 311, and the sealed end 310 prevents the probe 4 from falling out. In addition, the needle cannula 31 is convenient for connecting with the test connector 6.
[0051] The other components and principles of this embodiment are the same as those of Embodiment 1 and will not be described again here.
[0052] Example 4
[0053] For ease of understanding, an embodiment of a WIFI module detection device is provided below for illustration. In practical applications, Figure 1-Figure 3 As shown, the test connector 6 includes a USB adapter 62, which is connected to the sealed end 310 via a TTL cable 61. The USB adapter 62 facilitates connection to a test machine, specifically a test computer. A TTL cable is a TTL connection cable used to connect a camera to a flash unit. It is also commonly referred to as an off-camera flash cable, TTL cable, shutter cable, or off-camera cable.
[0054] The other components and principles of this embodiment are the same as those of Embodiment 1 and will not be described again here.
[0055] Example 5
[0056] For ease of understanding, an embodiment of a WIFI module detection device is provided below for illustration. In practical applications, Figure 1-Figure 5 As shown, the pressing assembly 7 includes a clamping part 12, a pressing tool 13 and a pressing cylinder 14. The pressing tool 13 is detachably clamped by the clamping part 12. The clamping part 12 is connected to the piston end of the pressing cylinder 14. A pressing rod 15 and a high-frequency probe 16 are provided on the pressing tool 13. The pressing rod 15 points to the module mounting seat 1, and the pressing cylinder 14 drives the clamping part 12 to move.
[0057] Since the clamping portion 12 clamps the pressing fixture 13 by clamping, when detecting different WIFI modules, the corresponding pressing fixture 13 can be directly replaced on the clamping portion 12, which is convenient and quick. The operating process of the above-mentioned pressing assembly 7 is: place the required pressing fixture 13 on the clamping portion 12 to clamp the pressing fixture 13, start the pressing cylinder 14 to drive the clamping portion 12 to press down, so that the pressing fixture 13 is pressed down, and then the pressing rod 15 presses down the module mounting seat 1, so that the high-frequency probe 16 is in electric contact with the WIFI module on the module mounting seat 1, and the high-frequency probe 16 provides power to the module mounting seat 1. The pressing assembly 7 can replace different pressing fixtures 13, realize the adjustability of the pressing fixture 13, and ensure the reliability and versatility of the test.
[0058] In addition, the PLC control device controls the air pipe between the control relay and the pressing cylinder 14 , thereby controlling the pressing cylinder 14 and then controlling the moving path of the pressing assembly 7 .
[0059] In this embodiment, the clamping part 12 includes a first side plate 17, a second side plate 18 and a clamping cylinder 19. The first side plate 17 and the second side plate 18 are arranged opposite to each other. The piston end of the clamping cylinder 19 is connected to the second side plate 18. The pressing tool 13 is placed between the first side plate 17 and the second side plate 18. The clamping cylinder 19 drives the second side plate 18 to clamp toward the first side plate 17.
[0060] Because the first side plate 17 and the second side plate 18 are positioned relative to each other, the first side plate 17 and the second side plate 18 can be driven to clamp the pressing tool 13 therebetween by driving the clamping cylinder 19. Preferably, the second side plate 18 is located below the first side plate 17, and the clamping cylinder 19 drives the second side plate 18 toward the first side plate 17, thereby clamping the pressing tool 13 between the first side plate 17 and the second side plate 18, thereby preventing the pressing tool 13 from shifting. In actual applications, the clamping cylinder 19 can also drive the first side plate 17 toward the second side plate 18 to clamp the pressing tool 13 between the first side plate 17 and the second side plate 18.
[0061] In addition, the PLC control device controls the air pipe between the control relay and the clamping cylinder 19, thereby controlling the clamping cylinder 19 and further controlling the clamping state of the clamping device.
[0062] The other components and principles of this embodiment are the same as those of Embodiment 1 and will not be described again here.
[0063] Example 6
[0064] For ease of understanding, an embodiment of a WIFI module detection device is provided below for illustration. In practical applications, Figure 1-Figure 5As shown, it also includes a workbench 20, which is arranged below the pressing assembly 7. A positioning groove 21 is provided on the workbench 20, and a positioning plate 22 is provided at the bottom of the probe mounting seat 2. The positioning plate 22 is embedded in the positioning groove 21. The positioning plate 22 is provided with a positioning bearing 23 and a positioning column 24. One end of the positioning column 24 is adapted to the positioning bearing 23, and the other end points to the probe mounting seat 2 and is connected to the probe mounting seat 2.
[0065] A positioning groove 21 is provided on the workbench 20 to facilitate fixing the probe mounting base 2 via a positioning plate 22. A positioning bearing 23 cooperates with a positioning column 24 to further improve the buffering effect of the detection device.
[0066] The other components and principles of this embodiment are the same as those of Embodiment 1 and will not be described again here.
[0067] Example 7
[0068] For ease of understanding, an embodiment of a WIFI module detection device is provided below for illustration. In practical applications, Figure 1-Figure 5 As shown, the module mounting base 1 includes a plate, a limiting groove 25 is provided on the plate, the WIFI module is embedded in the limiting groove 25, and the probe contact 5 is provided in the limiting groove 25. The limiting groove 25 can position the WIFI module.
[0069] The other components and principles of this embodiment are the same as those of Embodiment 1 and will not be described again here.
[0070] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.
[0071] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.
[0072] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0073] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.
[0074] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A WIFI module detection device, characterized in that: include: Module mounting seat, which is used to place the WIFI module to be tested; A probe mounting seat is provided with a needle seat, on which a probe is provided, the probe pointing to the probe contact of the module mounting seat, and the probe can be connected to the probe contact; A pressing assembly that drives the module mounting seat toward or away from the probe mounting seat; A controller is connected to the pressing assembly and controls the moving path of the pressing assembly; the module mounting seat includes a plate, a limiting groove is provided on the plate, the WIFI module is embedded in the limiting groove, and the probe contact is arranged in the limiting groove.
2. The WIFI module detection device according to claim 1, wherein: The probe mounting seat is provided with a guide bearing sleeve, the guide bearing sleeve is adapted to be equipped with a guide column, the guide column is connected to the module mounting seat, the guide column sleeve is provided with a buffer spring, and the two ends of the buffer spring are respectively in contact with the module mounting seat and the probe mounting seat.
3. The WIFI module detection device according to claim 2, wherein: The probe mounting seat includes a mounting plate, a plate surface of the mounting plate is provided with a mounting opening, an end portion of the guide bearing sleeve is embedded in the mounting opening, and an end portion of the buffer spring is positioned on the mounting opening.
4. The WIFI module detection device according to claim 3, wherein: The needle seat includes several needle cannulas, which include a sealed end and an open end. The sealed end and the open end are respectively located on both sides of the mounting plate. The sealed end is connected to the test connector, which can be connected to a test machine for detecting the WIFI module. The open end points to the module mounting seat, and the probe is detachably plugged into the needle cannula through the open end.
5. The WIFI module detection device according to claim 4, characterized in that: The test connector includes a USB conversion connector, and the USB conversion connector is connected to the sealed end via a TTL line.
6. The WIFI module detection device according to claim 1, wherein: The pressing assembly includes a clamping part, a pressing tool and a pressing cylinder. The pressing tool is detachably clamped by the clamping part. The clamping part is connected to the piston end of the pressing cylinder. The pressing tool is provided with a pressing rod and a high-frequency probe. The pressing rod points to the module mounting seat. The pressing cylinder drives the clamping part to move.
7. The WIFI module detection device according to claim 6, characterized in that: The clamping part includes a first side plate, a second side plate and a clamping cylinder. The first side plate and the second side plate are arranged opposite to each other. The piston end of the clamping cylinder is connected to the second side plate. The lower pressing device is located between the first side plate and the second side plate. The clamping cylinder drives the second side plate to clamp toward the first side plate.
8. The WIFI module detection device according to claim 1, wherein: It also includes a workbench, which is arranged below the pressing assembly. A positioning groove is provided on the workbench. A positioning plate is provided at the bottom of the probe mounting seat. The positioning plate is embedded in the positioning groove. The positioning plate is provided with a positioning bearing and a positioning column. One end of the positioning column is adapted to the positioning bearing, and the other end points to the probe mounting seat and is connected to the probe mounting seat.
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