Adjustable handheld probe

Abstract

The utility model provides an adjustable handheld probe, which comprises a mounting shell, a first probe, a second probe, a transmission rod and a driving piece, and is characterized in that a long hole is formed in the first end of the mounting shell; the first probe and the second probe are arranged in the long open hole in a penetrating mode, one end of the first probe is located outside the first end, the other end of the first probe is connected with a first installation unit, one end of the second probe is located outside the first end, the other end of the second probe is connected with a second installation unit, and the first installation unit and the second installation unit are arranged on the inner side of the installation shell; the transmission rod is arranged on the first installation unit and the second installation unit in a penetrating mode, at least one end of the transmission rod is provided with external threads, and threaded holes matched with the external threads are formed in the first installation unit and / or the second installation unit. The driving piece is arranged on the transmission rod in a sleeving mode and provided with a stress part located outside the installation shell. The utility model solves the problem that the handheld probe cannot be adjusted.

Description

Technical Field

[0001] The utility model relates to the field of testing devices, in particular to an adjustable handheld probe. Background Art

[0002] In the modern electronics manufacturing industry, PCB (printed circuit board) production quality control is a key link to ensure the reliability of electronic products. After the assembly of the PCB board, the verification of its electrical performance is an essential step, which is directly related to the final function and stability of the product. Traditionally, one of the most basic detection methods involves manual use of handheld test probes for electrical performance testing. This type of test probe is simple in design and is usually equipped with a probe with two contact points. The operator needs to manually align the probe with a specific test point on the PCB board to form a closed loop to check the circuit connectivity, resistance value or signal transmission status, so as to determine whether the PCB meets the design requirements.

[0003] However, this test method that relies on manual operation and fixed probe configuration has significant limitations. Since the test point layout of each model of PCB board is different, fixed probes are difficult to adapt to the test requirements of different designs. Whenever a company introduces a new model of PCB product line, it needs to be equipped with matching handheld probes, which not only leads to the inflexibility of test resources, but also greatly increases the company's equipment acquisition costs and inventory management complexity. In addition, the frequent replacement of probes also affects test efficiency, prolongs product time to market, and in the long run, limits production efficiency and market response speed. Therefore, exploring a new test probe technology that can be compatible with multiple PCB board designs and improve test versatility and efficiency has become an urgent problem to be solved in the current electronic manufacturing field. Utility Model Content

[0004] The utility model aims to provide a method for effectively solving the problem that the probe with a fixed structure in the prior art is difficult to adapt to PBAs of different specifications.

[0005] In order to achieve the purpose of the above utility model, an embodiment of the utility model provides an adjustable handheld probe, which is characterized by comprising:

[0006] A mounting shell, wherein a first end of the mounting shell is provided with a long opening;

[0007] A first probe and a second probe, wherein the first probe and the second probe are inserted into the long opening, one end of the first probe is located outside the first end, and the other end is connected to a first mounting unit, one end of the second probe is located outside the first end, and the other end is connected to a second mounting unit, and the first mounting unit and the second mounting unit are arranged on the inner side of the mounting shell;

[0008] A transmission rod is passed through the first mounting unit and the second mounting unit, at least one end of the transmission rod is provided with an external thread, and the first mounting unit and / or the second mounting unit is provided with a threaded hole matching the external thread;

[0009] A driving member, which is sleeved on the transmission rod and has a force-bearing portion located outside the mounting shell, and the force-bearing portion can be driven to drive the transmission rod to rotate, so that at least one of the first mounting unit and the second mounting unit moves toward or away from the other, and at least one of the first probe and the second probe moves toward or away from the other.

[0010] As a further improvement of an embodiment of the utility model, the driving member includes a turntable, and the turntable has the force-bearing portion located outside the mounting shell.

[0011] As a further improvement of an embodiment of the utility model, the outer circumference of the turntable is provided with concave-convex patterns, and the concave-convex patterns are extended along the axial direction of the turntable.

[0012] As a further improvement of an embodiment of the utility model, the mounting shell includes a first shell and a second shell arranged up and down, the first shell and the second shell are connected by snapping, and the first mounting unit and the second mounting unit are arranged on the inner side of the second shell.

[0013] As a further improvement of an embodiment of the utility model, the first end of the first shell is connected to the first end of the second shell to form the first end of the mounting shell, the first end of the first shell is provided with a first groove opening toward the second shell, the first end of the second shell is provided with a second groove opening toward the first shell, and the groove wall of the first groove is connected to the groove wall of the second groove to enclose the long opening.

[0014] As a further improvement of an embodiment of the utility model, a support portion is provided on the inner side of the bottom wall of the mounting shell, and the first mounting unit and the second mounting unit are provided on the support portion.

[0015] As a further improvement of an embodiment of the utility model, the support portion includes a first boss and a second boss which are sequentially spaced apart in a direction away from the first end.

[0016] As a further improvement of one embodiment of the utility model, the first mounting unit includes a first mounting rod and a first limiting member mounted on the first mounting rod, the first probe is passed through the end of the first mounting rod close to the first end, the first limiting member is arranged on the first boss and located on the inner side of the first end, the end of the transmission rod connected to the first mounting unit is passed through the first limiting member, and a section of the first mounting rod away from the first end is arranged on the second boss.

[0017] As a further improvement of one embodiment of the utility model, the second mounting unit includes a second mounting rod and a second limiting member mounted on the second mounting rod, the second probe is passed through the end of the second mounting rod close to the first end, the second limiting member is arranged on the first boss and located on the inner side of the first end, the end of the transmission rod connected to the second mounting unit is passed through the second limiting member, and a section of the second mounting rod away from the first end is arranged on the second boss.

[0018] As a further improvement of an embodiment of the utility model, the mounting shell has a second end arranged relative to the first end, and a handle portion is formed by a depression on a wall of the mounting shell located between the first end and the second end.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] By cooperating the external thread on the transmission rod with the threaded holes on the first mounting unit and / or the second mounting unit, the first probe and the second probe can move toward or away from each other, thereby adjusting the distance between the two probes, so that the adjustable handheld probe can be applied to more PBA model detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of an adjustable handheld probe in one embodiment of the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the explosion structure of the adjustable handheld probe;

[0023] Figure 3 for Figure 2 A schematic diagram of the structure from another perspective;

[0024] Figure 4 for Figure 2 Enlarged view of point M in the middle.

[0025] The above drawings include the following reference numerals:

[0026] 1. Mounting shell; 11. First end; 12. First housing; 121. First groove; 13. Second housing; 131. Second groove; 14. First boss; 15. Second boss; 16. Second end; 17. Handle;

[0027] 2. first probe; 21. first mounting unit; 211. first mounting rod; 212. first stopper;

[0028] 3. second probe; 31. second mounting unit; 311. second mounting rod; 312. second stopper;

[0029] 4. Transmission rod;

[0030] 5. Driving part; 51. Force-bearing part; 52. Concave and convex texture; 6. Joint. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0033] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0034] In order to solve the problem that the probe with a fixed structure in the prior art is difficult to adapt to PBAs of different specifications, the utility model provides an adjustable handheld probe.

[0035] like Figure 1-4 As shown, an embodiment of the utility model provides an adjustable handheld probe, including a mounting shell 1, a first probe 2 and a second probe 3, a transmission rod 4, and a driving member 5.

[0036] The first end 11 of the mounting shell 1 is provided with a long opening; the first probe 2 and the second probe 3 are inserted into the long opening, one end of the first probe 2 is located outside the first end 11, and the other end is connected to the first mounting unit 21, one end of the second probe 3 is located outside the first end 11, and the other end is connected to the second mounting unit 31, and the first mounting unit 21 and the second mounting unit 31 are arranged on the inner side of the mounting shell 1;

[0037] The transmission rod 4 is passed through the first mounting unit 21 and the second mounting unit 31. At least one end of the transmission rod 4 is provided with an external thread. The first mounting unit 21 and / or the second mounting unit 31 is provided with a threaded hole matching the external thread.

[0038] Furthermore, the driving member 5 is sleeved on the transmission rod 4 and has a force-bearing portion 51 located outside the mounting shell 1. The force-bearing portion 51 can be driven to drive the transmission rod 4 to rotate, so that at least one of the first mounting unit 21 and the second mounting unit 31 moves toward or away from the other, and at least one of the first probe 2 and the second probe 3 moves toward or away from the other.

[0039] Optionally, one end of the transmission rod 4 passing through the first mounting unit 21 is provided with an external thread, and correspondingly, a threaded hole matching the external thread is provided on the first mounting unit 21. With such a configuration, when the transmission rod 4 is driven to rotate by the force-bearing portion 51, the threaded hole of the first mounting unit 21 matches the external thread on the transmission rod 4 passing through the threaded hole, so that the first mounting unit 21 can move toward or away from the second mounting unit 31 in the axial direction of the transmission rod 4, thereby causing the first probe 2 on the first mounting unit 21 to move toward or away from the second probe 3.

[0040] Alternatively, the transmission rod 4 is passed through one end of the second mounting unit 31 and is provided with an external thread, and correspondingly, the second mounting unit 31 is provided with a threaded hole that matches the external thread. In this way, when the transmission rod 4 is driven to rotate by the force-bearing part 51, the second mounting unit 31 can move toward or away from the first mounting unit 21 in the axial direction of the transmission rod 4, thereby causing the second probe 3 on the second mounting unit 31 to move toward or away from the first probe 2.

[0041] Preferably, both ends of the transmission rod 4 are provided with external threads, and threaded holes matching the external threads are respectively provided on the first mounting unit 21 and the second mounting unit 31. With such arrangement, when the transmission rod 4 is driven to rotate by the force-bearing portion 51, the first mounting unit 21 and the second mounting unit 31 can move toward or away from each other along the axial direction of the transmission rod 4. In this case, the speed at which the first probe 2 and the second probe 3 approach or move away is much greater than that in the first two cases.

[0042] It can be understood that by cooperating with the threaded holes on the first mounting unit 21 and / or the second mounting unit 31 through the external thread on the transmission rod 4, the first probe 2 and the second probe 3 can move toward each other or away from each other, thereby adjusting the distance between the two probes, so that the adjustable handheld probe can be suitable for more PBA model detection.

[0043] Optionally, refer to Figure 2 As shown, the driving member 5 includes a rotating disk, and the rotating disk has the force-bearing portion 51 located outside the housing. After the user applies a finger to the force-bearing portion 51, the rotating disk can be easily turned to rotate, so that the rotating disk drives the transmission rod 4 to rotate.

[0044] Further, refer to Figure 4 The best display of the embodiment of the present invention is that the outer periphery of the rotating disk is provided with concave-convex patterns 52, and the concave-convex patterns 52 are extended along the axial direction of the rotating disk. In this way, when the user operates the concave-convex patterns 52 located outside the housing 1 with his fingers, it can effectively prevent slipping.

[0045] In some embodiments, the mounting shell 1 is configured as a split structure, and the mounting shell 1 includes a first shell 12 and a second shell 13 disposed up and down, the first shell 12 and the second shell 13 are connected by snapping, and the first mounting unit 21 and the second mounting unit 31 are disposed inside the second shell 13. With such a configuration, when a fault occurs inside the adjustable handheld probe, it is convenient for the user to separate the first shell 12 and the second shell 13 for maintenance.

[0046] Furthermore, the first end of the first shell 12 and the first end of the second shell 13 are connected to form the first end 11 of the mounting shell 1, the first end of the first shell 12 is provided with a first groove 121 opening toward the second shell, and the first end of the second shell 13 is provided with a second groove 131 opening toward the first shell, and the groove wall of the first groove 121 and the groove wall of the second groove 131 are connected to form the long opening.

[0047] Still reference Figure 2 As best shown, in some embodiments, a supporting portion is provided on the inner side of the bottom wall of the mounting shell 1, and the first mounting unit 21 and the second mounting unit 31 are provided on the supporting portion.

[0048] Specifically, the support portion includes a first boss 14 and a second boss 15 that are sequentially spaced apart in a direction away from the first end 11. The first mounting unit 21 and the second mounting unit 31 are disposed on the first boss 14 and the second boss 15, and the first boss 14 and the second boss 15 are sequentially spaced apart in a direction away from the first end 11, which helps the first mounting unit 21 and the second mounting unit 31 to be stably located on the first boss 14 and the second boss 15. When the transmission rod 4 is driven to rotate and drive the first mounting unit 21 and / or the second mounting unit 31 to move in the axial direction of the transmission rod 4, the first mounting unit 21 and / or the second mounting unit can slide on the upper surface of the first boss 14 and the second boss 15.

[0049] Furthermore, the first mounting unit 21 includes a first mounting rod 211 and a first limiting piece 212 mounted on the first mounting rod, the first probe 2 is passed through the end of the first mounting rod 211 close to the first end 11, the first limiting piece 212 is arranged on the first boss 14 and is located on the inner side of the first end 11, and the end of the transmission rod 4 connected to the first mounting unit is passed through the first limiting piece 212. When an external thread is provided on the end of the transmission rod 4 connected to the first mounting unit 21, a threaded hole is provided on the first limiting piece 212 corresponding to the external thread.

[0050] Furthermore, a section of the first mounting rod 211 away from the first end 11 is disposed on the second boss 15 .

[0051] With such configuration, the first limiting member 212 can play a limiting role in the axial direction of the mounting rod 211 , thereby preventing the first probe 2 mounted at the end of the first mounting rod 211 from sliding outward in the axial direction of the first mounting rod 211 .

[0052] Correspondingly, the second mounting unit 31 includes a second mounting rod 311 and a second limiting piece 312 mounted on the second mounting rod, the first probe 3 is passed through the end of the second mounting rod 311 close to the first end 11, the second limiting piece 312 is arranged on the first boss 14 and is located on the inner side of the first end 11, the end of the transmission rod 4 connected to the second mounting unit is passed through the second limiting piece 312, and a section of the second mounting rod 311 away from the first end 11 is arranged on the second boss 15.

[0053] With such arrangement, the second limiting member 312 can play a limiting role in the axial direction of the second mounting rod 311 , preventing the second probe 3 installed at the end of the second mounting rod 311 from sliding outward in the axial direction of the second mounting rod 311 .

[0054] In the embodiments provided in the present utility model, reference is made to Figure 1 As shown, the mounting shell 1 has a second end 16 arranged relative to the first end 11, and a recessed handle portion 17 is provided on the wall between the first end and the second end of the mounting shell 1. Such a configuration is conducive to the user grasping the adjustable handheld probe through the handle portion 17.

[0055] In some embodiments, a detection circuit board (not shown in the figure) is disposed inside the mounting shell 1, the first probe 2 and the second probe 3 are electrically connected to the detection circuit board through a connecting line, and a display electrically connected to the detection circuit board is also disposed on the outer side of the mounting shell 1. In this arrangement, the first probe 2 and the second probe 3 are in contact with the detection point on the PBA, and the detection result can be fed back and displayed in time through the internal detection circuit board and the display.

[0056] refer to Figure 2 For best display, in this embodiment, a connector 6 is also provided on the second end of the mounting shell 1, and the connector 6 is usually an SMA connector. The SMA connector is a commonly used RF connector, which is widely used in circuit detection instruments and other RF and microwave systems. Its name comes from "Sub Miniature version A", which means A-type subminiature connector. The SMA connector is characterized by small size, wide operating frequency range, low insertion loss and good stability, and is suitable for the transmission of high-frequency signals. The SMA connector can be used to connect the adjustable handheld probe to more sophisticated signal processing equipment to obtain more accurate detection results.

[0057] In summary, the embodiments of the present invention achieve the following technical effects:

[0058] By cooperating the external thread on the transmission rod 4 with the threaded holes on the first mounting unit 21 and / or the second mounting unit 31, the first probe 2 and the second probe 3 can move toward or away from each other, thereby adjusting the distance between the two probes, so that the adjustable handheld probe can be suitable for more PBA model detection.

[0059] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0060] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable handheld probe, characterized in that: include: A mounting shell, wherein a first end of the mounting shell is provided with a long opening; A first probe and a second probe, wherein the first probe and the second probe are inserted into the long opening, one end of the first probe is located outside the first end, and the other end is connected to a first mounting unit, one end of the second probe is located outside the first end, and the other end is connected to a second mounting unit, and the first mounting unit and the second mounting unit are arranged on the inner side of the mounting shell; A transmission rod is passed through the first mounting unit and the second mounting unit, at least one end of the transmission rod is provided with an external thread, and the first mounting unit and / or the second mounting unit is provided with a threaded hole matching the external thread; A driving member, which is sleeved on the transmission rod and has a force-bearing portion located outside the mounting shell, and the force-bearing portion can be driven to drive the transmission rod to rotate, so that at least one of the first mounting unit and the second mounting unit moves toward or away from the other, and at least one of the first probe and the second probe moves toward or away from the other.

2. The adjustable handheld probe according to claim 1, characterized in that: The driving member includes a rotating disk having the force receiving portion located outside the mounting shell.

3. The adjustable handheld probe according to claim 2, characterized in that: The outer circumference of the rotating disk is provided with concave-convex patterns, and the concave-convex patterns are extended along the axial direction of the rotating disk.

4. The adjustable handheld probe according to claim 1, characterized in that: The installation shell includes a first shell and a second shell which are arranged up and down. The first shell and the second shell are connected by a snap-fitting manner. The first installation unit and the second installation unit are arranged inside the second shell.

5. The adjustable handheld probe according to claim 4, characterized in that: The first end of the first shell is connected to the first end of the second shell to form the first end of the mounting shell, the first end of the first shell is provided with a first groove opening toward the second shell, the first end of the second shell is provided with a second groove opening toward the first shell, and the groove wall of the first groove is connected to the groove wall of the second groove to form the long opening.

6. The adjustable handheld probe according to claim 1, characterized in that: A supporting portion is disposed inside the bottom wall of the mounting shell, and the first mounting unit and the second mounting unit are disposed on the supporting portion.

7. The adjustable handheld probe according to claim 6, characterized in that: The support portion includes a first boss and a second boss that are sequentially spaced apart in a direction away from the first end.

8. The adjustable handheld probe according to claim 7, characterized in that: The first mounting unit includes a first mounting rod and a first limiting member sleeved on the first mounting rod, the first probe is inserted into the end of the first mounting rod close to the first end, the first limiting member is arranged on the first boss and located on the inner side of the first end, one end of the transmission rod connected to the first mounting unit is inserted into the first limiting member, and a section of the first mounting rod away from the first end is arranged on the second boss.

9. The adjustable handheld probe according to claim 8, characterized in that: The second mounting unit includes a second mounting rod and a second limiting piece sleeved on the second mounting rod, the second probe is inserted into the end of the second mounting rod close to the first end, the second limiting piece is arranged on the first boss and located on the inner side of the first end, one end of the transmission rod connected to the second mounting unit is inserted into the second limiting piece, and a section of the second mounting rod away from the first end is arranged on the second boss.

10. The adjustable handheld probe according to claim 1, characterized in that: The mounting shell has a second end arranged opposite to the first end, and a handle portion is formed by a depression on a wall of the mounting shell located between the first end and the second end.

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