Universal meter pen assembly for nondestructive testing of conductive film and universal meter

Abstract

The utility model discloses a universal meter pen assembly used for conductive film nondestructive testing, a pen point portion is a U-shaped elastic sheet structure, the universal meter pen assembly also comprises a clamping piece, the clamping piece comprises two supporting legs, the upper portions of the supporting legs are pivoted, and the lower portions of the supporting legs are connected with two meter pens through connecting pieces; the lifting device further comprises a guide part, the guide part comprises a guide rod and a guide hole formed in one supporting leg, one end of the guide rod is movably arranged in the guide hole in a penetrating mode, and the other end of the guide rod is connected with the other supporting leg. The non-destructive testing device is particularly suitable for non-destructive testing of conductive films, contact damage to a tested object during testing is reduced to the maximum extent, damage caused in the testing process is avoided, single-hand stable operation can be achieved, operation is more convenient, and meanwhile the testing result is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of multimeters, in particular to a multimeter pen assembly and a multimeter for non-destructive detection of conductive films. Background Art

[0002] A multimeter can be used to measure the resistance value of a conductive film material to evaluate its conductivity. For conductive materials such as ITO glass, the multimeter can measure the surface resistance, which is an important parameter for measuring the thickness and transmittance of the conductive film, so as to understand the quality of the conductive film. In the prior art, when using an ordinary multimeter to detect a conductive film material, the existing problems include that if the surface of the conductive film is relatively smooth or irregular, the contact point of the multimeter pen may be unstable, resulting in inaccurate measurement results, and in the case where the film is relatively fragile or soft, the existing pen tip of the multimeter may cause deformation or damage to the film; in addition, during the detection process of the existing multimeter, the measurer needs to hold one pen in each hand and simultaneously lap it on different test positions, which is extremely inconvenient when data needs to be recorded or other operations are carried out simultaneously. Therefore, it is urgently needed to be improved. Summary of the Utility Model

[0003] The technical problem solved by the utility model is to provide a multimeter pen assembly and a multimeter for non-destructive detection of conductive films to solve the above-mentioned disadvantages in the background art.

[0004] The technical problem solved by the utility model is realized by adopting the following technical solutions:

[0005] A multimeter pen assembly for non-destructive detection of conductive films includes a pen body, and the pen body includes a pen rod part and a pen tip part, and the pen tip part is a U-shaped elastic sheet structure.

[0006] In the utility model, the U-shaped elastic sheet structure includes two oppositely arranged inclined surfaces, and both of the two oppositely arranged inclined surfaces are inclined from outside to inside and intersect at the bottom.

[0007] In the utility model, the width of the inclined surface connected to the pen rod part decreases sequentially from top to bottom, while the width of the inclined surface far from the pen rod part increases sequentially from top to bottom.

[0008] In the utility model, the bottom of the U-shaped elastic sheet structure is in an arc-shaped structure.

[0009] In the utility model, the multimeter pen assembly further includes a clamping member, and the clamping member includes two legs, the upper parts of the legs are pivotally connected, and the lower parts of the legs are connected to the two pen bodies through a connecting member.

[0010] In the utility model, the connecting member includes a claw and a fastening mechanism, one end of the claw is provided with a connecting column; an installation hole is provided on the leg; the connecting column passes through the installation hole and is fixed by the fastening mechanism.

[0011] In the present utility model, the claw is a U-shaped claw, and an opening is provided on the side of the claw.

[0012] In the present utility model, a guiding member is further included. The guiding member includes a guide rod and a guiding hole provided on one of the legs. One end of the guide rod is movably inserted through the guiding hole, and the other end of the guide rod is connected to the other leg.

[0013] In the present utility model, a plurality of limiting holes are arranged at intervals on the guide rod, and a protruding limiting bump is arranged in the guiding hole. The limiting bump is arranged in a matching manner with the limiting hole.

[0014] A multimeter pen includes the multimeter pen assembly as described in any one of the above.

[0015] Beneficial effects: For the multimeter pen assembly for non-destructive testing of conductive films in the present utility model, by setting the pen tip as a U-shaped elastic sheet structure, when detecting conductive films and similar materials, especially ultra-thin conductive films, the pen tip part is in elastic or flexible contact with the object to be measured, greatly reducing the contact damage to the object to be measured during testing and avoiding the damage caused during the detection process.

[0016] The multimeter pen assembly for non-destructive testing of conductive films in the present utility model can be operated with one hand, and the operation process is stable. During the operation process, it can be flexibly adjusted according to the distance to be detected, and during the adjustment, stable guiding can be carried out through the guiding member. After adjustment, the detection distance between the two test leads can be fixed through the guiding member to prevent the detection distance from changing during the detection process and resulting in inaccurate detection results.

[0017] The multimeter pen in the present utility model is particularly suitable for non-destructive testing of conductive films, can effectively reduce film damage, is convenient to use, can be operated with one hand, the detection distance can be flexibly adjusted during operation, the detection distance can be fixed after adjustment, and the detection result is more accurate, having good application prospects. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present utility model.

[0019] Figure 2 It is a schematic structural diagram of the U-shaped elastic sheet structure in a preferred embodiment of the present utility model.

[0020] Figure 3 It is a schematic structural diagram of the claw in a preferred embodiment of the present utility model.

[0021] Figure 4 It is a schematic side structural diagram of the leg in a preferred embodiment of the present utility model.

[0022] Wherein: 1. Probe; 11. Pen rod part; 12. Tip part; 121. First inclined surface; 122. Second inclined surface; 2. Leg; 21. Mounting hole; 22. Guide hole; 221. Limit bump; 3. Connecting piece; 31. Fastening mechanism; 32. Claw; 321. Connecting column; 322. Opening; 4. Guide rod; 41. Limit hole. Detailed implementation mode

[0023] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below with reference to specific drawings.

[0024] See Figures 1 to 4 as shown.

[0025] The multimeter pen 1 assembly for non-destructive detection of conductive films according to the present utility model includes a probe 1, as Figure 1 shown, the probe 1 includes a pen rod part 11 and a tip part 12, as Figure 2 shown, the tip part 12 is a U-shaped elastic sheet structure with conductive properties. Using the U-shaped elastic sheet structure to replace the traditional sharp tip can optimize the contact from point contact to surface contact when detecting conductive films and similar materials, especially ultra-thin conductive films, and the tip part 12 is in elastic or flexible contact with the object to be measured, greatly reducing the contact damage to the object to be measured during testing and avoiding the damage caused during the detection process.

[0026] In some preferred embodiments, the U-shaped elastic sheet structure includes two oppositely arranged inclined surfaces, as Figure 2 shown, the two oppositely arranged inclined surfaces are both inclined from the outside to the inside and intersect at the bottom. In order to further reduce the damage to the conductive film to be measured, the bottom of the U-shaped elastic sheet structure is made into a smooth arc-shaped structure, thereby further reducing the damage to the contact surface.

[0027] In a further preferred embodiment, as Figure 2 shown, the width of the first inclined surface 121 connected to the pen rod part 11 decreases sequentially from the top to the bottom, while the width of the second inclined surface 122 far from the pen rod part 11 increases sequentially from the top to the bottom. Thereby, while ensuring the structural stability and durability, the deformation is reduced, and a certain contact elasticity is ensured.

[0028] In some preferred embodiments, the multimeter pen 1 assembly further includes a clamping member, as Figure 1 and Figure 3 shown, the clamping member includes two legs 2, the upper parts of the legs 2 are pivotally connected, the two legs 2 can be held by one hand and opened and closed flexibly, and the lower parts of the two legs 2 are respectively connected to the two probes 1 through a connecting piece 3. The connecting piece 3 includes a claw 32 and a fastening mechanism 31, as Figure 3 and Figure 4As shown, one end of the jaw 32 is provided with a connecting post 321 with threads; an installation hole 21 is provided on the support leg 2; the connecting post 321 passes through the installation hole 21 and is fixed by the fastening mechanism 31. In some preferred embodiments, the fastening mechanism 31 is a nut structure. In this embodiment, the jaw 32 is a U-shaped jaw 32, and an opening 322 is provided on the side of the jaw 32. The opening 322 has a certain deformation space, so as to facilitate the entry and fixation of the pen shaft part 11 of the test pen 1. In actual operation, different-sized jaws 32 can be flexibly replaced according to the needs of different test pens 1. Moreover, as an improvement to the present invention, jaws 32 with the same or similar functions in the prior art are also within the protection scope of the present invention.

[0029] As an improvement to the present invention, the test pen 1 assembly of the multimeter further includes a guiding member, such as Figure 1 and Figure 4 As shown, the guiding member includes a guide rod 4 and a guiding hole 22 provided on one of the support legs 2. The guide rod 4 can also be replaced by a guide plate, etc. One end of the guide rod 4 is movably inserted into the guiding hole 22, and the other end of the guide rod 4 is connected to the other support leg 2. Thus, when the two support legs 2 open and close along the guide rod 4, the shaking is reduced, and the detection orientation is more convenient. Moreover, further improved, a plurality of limiting holes 41 are arranged at intervals along the guide rod 4, and a protruding limiting bump 221 is arranged in the guiding hole 22. The limiting bump 221 is arranged in a matching manner with the limiting holes 41. Thus, when the two support legs 2 open and close to a predetermined range, the guide rod 4 can be clamped on the corresponding limiting holes 41 and the limiting bumps 221 for clamping, so as to well fix the detection distance.

[0030] The test pen 1 of the present invention includes the test pen 1 assembly described in any one of the above, and other components are the same as those in the prior art, which will not be elaborated here.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0033] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components.

[0034] The above content is a further detailed description of the present utility model in combination with specific embodiments, and it cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model pertains, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made.

Claims

1. A multimeter pen assembly for non-destructive testing of conductive films, characterized in that, It includes test leads. The test leads include a pen rod part and a pen tip part, and the pen tip part is of a U-shaped elastic sheet structure; The U-shaped elastic sheet structure includes two oppositely arranged inclined surfaces, and both of the two oppositely arranged inclined surfaces are inclined from the outside to the inside and intersect at the bottom; The multimeter pen assembly further includes a clamping member. The clamping member includes two legs. The upper parts of the legs are pivotally connected, and the lower parts of the legs are connected to the two test leads through a connecting member.

2. The multimeter pen assembly for non-destructive testing of conductive films according to claim 1, characterized in that, The width of the inclined surface connected to the pen rod part decreases sequentially from the top to the bottom, while the width of the inclined surface far from the pen rod part increases sequentially from the top to the bottom.

3. The multimeter pen assembly for non-destructive testing of conductive films according to claim 2, characterized in that, The bottom of the U-shaped elastic sheet structure is of an arc-shaped structure.

4. The multimeter pen assembly for non-destructive testing of conductive films according to claim 1, wherein, The connecting member includes a claw and a fastening mechanism. One end of the claw is provided with a connecting column; an installation hole is provided on the leg; the connecting column passes through the installation hole and is fixed through the fastening mechanism.

5. The multimeter pen assembly for non-destructive detection of conductive films according to claim 4, characterized in that, The claw is a U-shaped claw, and an opening is provided on the side of the claw.

6. The multimeter pen assembly for non-destructive testing of conductive films according to claim 1, wherein It further includes a guiding member. The guiding member includes a guide rod and a guiding hole provided on one of the legs. One end of the guide rod is movably penetrated through the guiding hole, and the other end of the guide rod is connected to the other leg.

7. The multimeter pen assembly for non-destructive detection of conductive films according to claim 6, characterized in that, A plurality of limiting holes are arranged at intervals on the guide rod, and a protruding limiting bump is arranged in the guiding hole, and the limiting bump is arranged in a matching manner with the limiting hole.

8. A multimeter pen, characterized in that, It includes the multimeter pen assembly according to any one of claims 1 to 7.

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