Meter pen
By designing the rotary connection adapters and fastening mechanism, the convenient measurement of the meter pen in various scenarios is achieved, and the problem of frequent replacement of the existing meter pens is solved, which improves the convenience of measurement and conductivity.
Patent Information
- Application Number
- CN202421761480.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-23
AI Technical Summary
When measuring in various scenarios, existing test pens need to be frequently replaced, resulting in insufficient convenience.
A test pen including a rod portion, an adapter, a first probe and a fastening mechanism is designed, and the adapter is rotatably connected to the rod portion, providing a force in a relative position through the fastening mechanism, so that the first probe can be bent to adapt to the tortuous space, and a second probe can be detachably installed to protect the first probe.
It improves the measurement convenience of the test pen in various scenarios, reduces the frequency of probe replacement, protects the probe, and enhances the conductivity and stability.
Smart Images
Figure CN223155082U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of detection instruments, and in particular to a test lead. Background Art
[0002] Test leads are usually used in multimeters, test benches and other equipment to detect the current, voltage, resistance and other parameters of components. Test leads generally include a pen holder and a probe. When measuring smaller components, the corresponding probe needs to be thinner; when the measurement point is in a small space, the probe needs to be bent relative to the pen holder to facilitate insertion and measurement.
[0003] At present, test pens suitable for various scenarios need to be equipped with at least 4 replaceable probes, including thick probes, thin probes, straight probes and curved probes. However, in actual use, the current test pens often need to replace the corresponding probes according to different usage scenarios, and their convenience in measuring in various scenarios needs to be improved. Utility Model Content
[0004] In view of this, the present application provides a test lead, which is conducive to improving the convenience of measuring in various scenarios.
[0005] The present application provides a test lead, comprising a rod, an adapter, a first probe, a second probe and a fastening mechanism, wherein the adapter is rotatably connected to the rod; the first probe is fixed to the adapter; the fastening mechanism connects the adapter and the rod, and the fastening mechanism is used to provide a force for maintaining the relative position of the adapter and the rod.
[0006] The adapter is rotatably connected to the rod, and when the adapter rotates, the first probe can be bent at a certain angle relative to the rod, which is conducive to the test lead to measure in a tortuous space. Therefore, the test lead of the present application is conducive to improving the convenience of measurement in various scenarios.
[0007] In some embodiments, the rod portion includes a rod body and a first fixed block, the rod body extends along a predetermined direction, the first fixed block is connected to the rod body along the predetermined direction, and the first fixed block has a first through hole; the adapter includes a first connecting block and a second connecting block, the first connecting block is connected to one side of the second connecting block, the first probe is connected to the other side of the second connecting block, and the first connecting block has a connecting hole; the fastening mechanism is arranged through the first through hole and the connecting hole.
[0008] In the test lead of the above embodiment, the first through hole and the connecting hole can position the fastening mechanism, which is beneficial for the adapter and the rod to be rotatably connected with the fastening mechanism as the rotation axis, so that when the adapter rotates relative to the rod, it is beneficial to reduce the possibility of the adapter shifting in an unexpected direction.
[0009] In some embodiments, the rod portion includes a second fixing block. The second fixing block is connected to the rod body along a predetermined direction. Along the direction passing through the center of the first through hole and perpendicular to the predetermined direction, there is a spacing between the second fixing block and the first fixing block. The second fixing block has a second through hole. The first connecting block is disposed between the first fixing block and the second fixing block. The fastening mechanism passes through the first through hole, the connecting hole, and the second through hole.
[0010] In the pen tip of the above embodiment, the first fixing block and the second fixing block can limit the first connecting block, which is beneficial to improving the connection stability between the adapter and the rod portion.
[0011] In some embodiments, the fastening mechanism is threadedly connected to the second through hole.
[0012] In the pen tip of the above embodiment, when adjusting the force for maintaining the relative position between the adapter and the rod portion, the threaded connection form can make the adjustment amplitude smaller each time, which is beneficial to improving the convenience of the adjustment operation.
[0013] In some embodiments, the outer perimeters of the first fixing block and the first connecting block are arc-shaped. The rod body is connected to the outer perimeter of the first fixing block, and the second connecting block is connected to the outer perimeter of the first connecting block.
[0014] In the pen tip of the above embodiment, the arc-shaped outer perimeter matches the path of the second connecting block when the adapter rotates, which is beneficial to improving the smoothness of the adapter rotation.
[0015] In some embodiments, the first connecting block has a protrusion protruding towards the first fixing block.
[0016] In the pen tip of the above embodiment, the protrusion is clamped between the first fixing block and the first connecting block, and can relatively easily contact the first fixing block, which is beneficial to improving the electrical conductivity between the first connecting block and the first fixing block, and thus beneficial to improving the electrical conductivity of the pen tip.
[0017] In some embodiments, the protrusion is disposed on a side of the first connecting block close to the rod body.
[0018] In the pen tip of the above embodiment, according to the nature of the deflection, when the fastening mechanism applies force to the first fixing block and the first connecting block, the closer the part of the first fixing block is to the rod body, the smaller the corresponding deformation is. And the protrusion is disposed close to the rod body, which is beneficial to further improving the electrical conductivity between the first connecting block and the first fixing block. Also, compared with the protrusion being disposed away from the rod body, when the adapter rotates relative to the rod portion, it is beneficial to reduce the wear of the protrusion, and thus beneficial to the pen tip maintaining good electrical conductivity for a long time.
[0019] In some embodiments, the pen tip further includes a second probe. The second probe is sleeved on the first probe and can be detachably mounted on the adapter.
[0020] In the test lead of the above embodiment, when the second probe is disassembled from the adapter, the first probe is beneficial for the test lead to perform measurements in a narrow space; when the second probe is installed on the adapter, measurements can be performed. The second probe sleeved on the first probe is beneficial for providing protection for the relatively thin first probe, thereby reducing the risk of the first probe being bent or even broken due to collision.
[0021] In some embodiments, the adapter includes a mounting block that surrounds a part of the outer circumference of the first probe and is connected to one side of the second connecting block close to the first probe, and the second probe is installed on the mounting block.
[0022] In the test lead of the above embodiment, it is beneficial to improve the convenience of disassembling and assembling the second probe and the mounting block, and it is beneficial for the second probe to be sleeved on the first probe.
[0023] In some embodiments, the second probe is threadedly connected to the mounting block.
[0024] In the test lead of the above embodiment, the thread has a certain guiding effect, making it more convenient when the second probe is disassembled and assembled with the mounting block.
[0025] In the present application, when the test lead performs measurements in a tortuous space, the adapter and the rod portion can rotate relative to each other. Rotating the adapter can make the first probe or the second probe have a certain angle with a predetermined direction, thereby adapting the test lead to the tortuous space. The relative position between the adapter and the rod portion can be maintained by the fastening mechanism, thereby fixing the angle between the first probe or the second probe and the predetermined direction. When the test lead performs measurements in a narrow space, the second probe is disassembled from the adapter, which is beneficial for performing measurements with the relatively thin first probe. When the test lead performs measurements in a general scenario, the second probe is installed on the adapter and sleeved on the outer circumference of the first probe, which is beneficial for performing measurements with the relatively thick second probe and is beneficial for protecting the first probe. Thus, the test lead of the present application is beneficial for improving the convenience of performing measurements in various scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is an overall schematic diagram of a test lead provided by an embodiment of the present application.
[0027] Figure 2 It is an assembled schematic diagram of the main components of a test lead provided by an embodiment of the present application.
[0028] Figure 3 It is along Figure 2 Partial cross-sectional view taken along the cutting line A-A in
[0029] Figure 4 It is an exploded schematic diagram of the main components of a test lead provided by an embodiment of the present application.
[0030] Figure 5 Explosion schematic diagram of the main components of the test lead provided by an embodiment of the present application from another perspective.
[0031] Description of main component symbols
[0032] Test lead 1
[0033] Rod part 11
[0034] Rod body 111
[0035] First fixing block 112
[0036] First through hole 1121
[0037] Second fixing block 113
[0038] Second through hole 1131
[0039] Adapter 12
[0040] First connection block 121
[0041] Connection hole 1211
[0042] Protrusion 1212
[0043] Second connection block 122
[0044] Mounting block 123
[0045] First probe 13
[0046] Second probe 14
[0047] Fastening mechanism 15
[0048] Predetermined direction L Detailed implementation manners
[0049] Next, the technical solutions in the embodiments of the present application will be described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.
[0050] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "provided on" another component, it can be directly provided on the other component or there may be an intermediate component at the same time.
[0051] The terms "first", "second", etc. are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or the quantity, specific order or primary-secondary relationship of the indicated technical features.
[0052] The term "perpendicular" is used to describe an ideal state between two components. In actual production or use, the two components may be in a state that is approximately perpendicular to each other.
[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0054] The present application discloses a test lead, comprising a rod, an adapter, a first probe and a fastening mechanism, wherein the adapter is rotatably connected to the rod; the first probe is fixed to the adapter; the fastening mechanism connects the adapter and the rod, and the fastening mechanism is used to provide a force for maintaining the relative position of the adapter and the rod.
[0055] The adapter is rotatably connected to the rod, and when the adapter rotates, the first probe can be bent at a certain angle relative to the rod, which is conducive to the test lead to measure in a tortuous space. Therefore, the test lead of the present application is conducive to improving the convenience of measurement in various scenarios.
[0056] Some embodiments of the present application will be described below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.
[0057] Please refer to Figure 1 and Figure 2 One embodiment of the present application provides a test lead 1, which can cooperate with an instrument or meter to complete the measurement of parameters such as voltage, current and resistance. The test lead 1 includes a rod 11, an adapter 12, a first probe 13 and a fastening mechanism 15. The adapter 12 is rotatably connected to the rod 11. The first probe 13 is fixed to the adapter 12. The fastening mechanism 15 connects the adapter 12 and the rod 11, and the fastening mechanism 15 is used to provide a force for the adapter 12 and the rod 11 to maintain a relative position.
[0058] In some embodiments, please refer to Figure 1 and Figure 2 The test lead 1 also includes a second probe 14, which is sleeved on the first probe 13 and can be detachably installed on the adapter 12. It can be understood that the second probe 14 is a thicker probe than the first probe 13. In this way, when the second probe 14 is disassembled from the adapter 12, the first probe 13 is used to facilitate the test lead 1 to perform measurements in a narrow space; when the second probe 14 is installed on the adapter 12, measurements can be performed, and the second probe 14 sleeved on the first probe 13 is used to provide protection for the relatively thin first probe 13, thereby reducing the risk of the first probe 13 being bent or even broken by collision.
[0059] In some embodiments, seeFigure 1 , Figures 3 to 5 , the rod portion 11 includes a first fixing block 112, and the first fixing block 112 is connected to the rod body 111 along a predetermined direction L.
[0060] In some embodiments, please refer to Figures 3 to 5 , the adapter 12 includes a first connecting block 121, and the first connecting block 121 is connected to the first fixing block 112. In some embodiments, please refer to Figure 3 and Figure 4 , the first fixing block 112 has a first through hole 1121, the first connecting block 121 has a connecting hole 1211, and the fastening mechanism 15 passes through the first through hole 1121 and the connecting hole 1211. In this way, the first through hole 1121 and the connecting hole 1211 can position the fastening mechanism 15, which is beneficial to the adapter 12 and the rod portion 11 to be rotatably connected with the fastening mechanism 15 as the rotation axis. Thus, when the adapter 12 rotates relative to the rod portion 11, it is beneficial to reduce the possibility that the adapter 12 deviates in an undesired direction.
[0061] In some embodiments, the fastening mechanism 15 applies a force towards each other to the first fixing block 112 and the first connecting block 121. When the force towards each other is small, the ability of the adapter 12 to maintain a relative position with the rod portion 11 is weak, that is, the adapter 12 is easy to rotate relative to the rod portion 11; when the force towards each other is large, the ability of the adapter 12 to maintain a relative position with the rod portion 11 is strong, that is, the adapter 12 is not easy to rotate relative to the rod portion 11. In some embodiments, please refer to Figure 4 and Figure 5 , the first connecting block 121 has a protrusion 1212, and the protrusion 1212 protrudes towards the first fixing block 112. In this way, the protrusion 1212 is clamped between the first fixing block 112 and the first connecting block 121, and can relatively easily contact the first fixing block 112, which is beneficial to improving the electrical conductivity between the first connecting block 121 and the first fixing block 112, and thus is beneficial to improving the electrical conductivity of the test pen 1.
[0062] In some embodiments, the protrusion 1212 is disposed on a side of the first connecting block 121 close to the rod body 111. In this way, according to the nature of deflection, when the fastening mechanism 15 applies a force to the first fixing block 112 and the first connecting block 121, the part of the first fixing block 112 closer to the rod body 111 has a smaller corresponding deformation, and the protrusion 1212 is disposed close to the rod body 111, which is beneficial to further improving the electrical conductivity between the first connecting block 121 and the first fixing block 112. And, compared with the protrusion 1212 being disposed away from the rod body 111, when the adapter 12 rotates relative to the rod portion 11, it is beneficial to reduce the wear of the protrusion 1212, and thus is beneficial to the test pen 1 to maintain good electrical conductivity for a long time.
[0063] In some embodiments, please refer to Figures 2 to 4, the adapter 12 includes a second connection block 122. The first connection block 121 is connected to one side of the second connection block 122, and the first probe 13 is connected to the other side of the second connection block 122. In this way, it is beneficial for the tip of the first probe 13 to be away from the rod body 111, thus reducing the risk of the first probe 13 stabbing the operator.
[0064] In some embodiments, the outer perimeters of the first fixing block 112 and the first connection block 121 are arc-shaped. The rod body 111 is connected to the outer perimeter of the first fixing block 112, and the second connection block 122 is connected to the outer perimeter of the first connection block 121. In this way, the arc-shaped outer perimeter matches the path of the second connection block 122 when the adapter 12 rotates, which is beneficial for improving the smoothness of the rotation of the adapter 12.
[0065] In some embodiments, the second connection block 122 is provided with a groove that surrounds a part of the outer perimeter of the first probe 13, and the second probe 14 is installed in the groove.
[0066] In some embodiments, the second probe 14 is snap-fitted with the groove.
[0067] In some embodiments, the second probe 14 is threadedly connected to the groove. In this way, the thread has a certain guiding effect, making it more convenient when the second probe 14 is disassembled and assembled with the mounting block 123.
[0068] In some embodiments, please refer to Figure 3 and Figure 5 , the rod portion 11 includes a second fixing block 113, and the second connection block 122 cooperates with the fastening mechanism 15 to apply a force towards each other to the first fixing block 112 and the first connection block 121.
[0069] In some embodiments, the second fixing block 113 is connected to the rod body 111 along a predetermined direction L. In this way, by holding the rod body 111, it is beneficial to apply a force to the fastening mechanism 15, thereby facilitating the adjustment of the force for maintaining the relative position between the adapter 12 and the rod portion 11.
[0070] In some embodiments, along the direction passing through the center of the first through hole 1121 and perpendicular to the predetermined direction L, there is a distance between the second fixing block 113 and the first fixing block 112. The first connection block 121 is disposed between the first fixing block 112 and the second fixing block 113. In this way, the first fixing block 112 and the second fixing block 113 can limit the first connection block 121, which is beneficial for improving the connection stability between the adapter 12 and the rod portion 11.
[0071] In some embodiments, please refer to Figure 4, the second fixing block 113 has a second through hole 1131. The fastening mechanism 15 passes through the first through hole 1121, the connection hole 1211, and the second through hole 1131. In this way, on the basis of positioning the fastening mechanism 15 by the first through hole 1121 and the connection hole 1211, the second through hole 1131 can further position the fastening mechanism 15. When the adapter 12 rotates relative to the rod portion 11, it is beneficial to further reduce the possibility of the adapter 12 shifting in an undesired direction.
[0072] In some embodiments, the fastening mechanism 15 includes a first fastener and a second fastener. The first fastener connects the adapter 12 and the rod portion 11 and is fixed to the second fastener. For example, the first fastener is a screw and the second fastener is a nut.
[0073] In some embodiments, the fastening mechanism 15 includes a first fastener and does not include a second fastener. The first fastener connects the adapter 12 and the rod portion 11 and is fixed to the rod portion 11. For example, the first fastener is a screw and the first fastener is threadedly connected to the rod portion 11.
[0074] In some embodiments, the fastening mechanism 15 is threadedly connected to the second through hole 1131. In this way, when adjusting the force for maintaining the relative position between the adapter 12 and the rod portion 11, the threaded connection form can make the adjustment amplitude smaller each time, which is beneficial to improving the convenience of the adjustment operation.
[0075] In some embodiments, please refer to Figures 2 to 5 , the adapter 12 includes a mounting block 123. The mounting block 123 surrounds a part of the outer periphery of the first probe 13, and the second probe 14 is mounted on the mounting block 123. In this way, it is beneficial to improve the convenience of disassembling and assembling the second probe 14 and the mounting block 123, and it is beneficial to sleeving the second probe 14 on the first probe 13.
[0076] In some embodiments, the second probe 14 is snap-connected to the mounting block 123.
[0077] In some embodiments, the second probe 14 is threadedly connected to the mounting block 123. In this way, the thread has a certain guiding effect, and it can be more convenient when disassembling and assembling the second probe 14 and the mounting block 123.
[0078] In some embodiments, the mounting block 123 has an internal thread and the second probe 14 has an external thread. In this way, when measuring with the first probe 13, it is beneficial to reduce the possibility of the internal thread of the mounting block 123 being worn by the measurement scenario, thereby being beneficial to maintaining the stability of the threaded connection between the second probe 14 and the mounting block 123.
[0079] In some embodiments, the mounting block 123 is connected to a side of the second connection block 122 close to the first probe 13. In other words, the mounting block 123 is connected to the second connection block 122 away from the first connection block 121.
[0080] In some embodiments, referring to Figures 2 to 5 , the rod portion 11 includes a rod body 111, and the rod body 111 extends along a predetermined direction L. Thus, it is beneficial for the operator to hold the test pen 1.
[0081] In some embodiments, the diameter of the tip of the first probe 13 is 0.2 mm. Thus, it is beneficial to measure a narrower space through the first probe 13.
[0082] In some embodiments, the material of the first probe 13 is stainless steel. Thus, it is beneficial to make the first probe 13 have a relatively high hardness, and it is beneficial to further reduce the risk of the first probe 13 being bent or even broken.
[0083] In some embodiments, the tip of the first probe 13 is gold-plated. Thus, it is beneficial to improve the electrical conductivity of the first probe 13.
[0084] In some embodiments, the tip of the second probe 14 is gold-plated. Thus, it is beneficial to improve the electrical conductivity of the second probe 14.
[0085] The working process and beneficial effects of the test pen 1 are as follows: When the test pen 1 measures in a tortuous space, rotate the fastening mechanism 15 so that the adapter 12 and the rod portion 11 can rotate relative to each other; rotate the adapter 12 so that the first probe 13 or the second probe 14 has a certain angle with the predetermined direction L, thereby making the test pen 1 adapt to the tortuous space; rotate the fastening mechanism 15 in the reverse direction so that the adapter 12 and the rod portion 11 maintain their relative positions, thereby fixing the angle between the first probe 13 or the second probe 14 and the predetermined direction L. When the test pen 1 measures in a narrow space, disassemble the second probe 14 from the adapter 12, which is beneficial for measuring through the relatively thinner first probe 13. When the test pen 1 measures in a general scenario, install the second probe 14 on the adapter 12 and sleeved on the outer periphery of the first probe 13, which is beneficial for measuring through the relatively thicker second probe 14 and is beneficial for protecting the first probe 13. Thus, the test pen 1 of the present application is beneficial to improve the convenience of measurement in various scenarios.
[0086] In addition, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present application, rather than to limit the present application. As long as it is within the substantial scope of the present application, appropriate changes and variations made to the above embodiments fall within the scope disclosed in the present application.
Claims
1. A test lead, comprising a rod portion, characterized in that, The test lead also includes: A transfer member, the transfer member being rotatably connected to the rod portion; A first probe, the first probe being fixed to the adapter; and A fastening mechanism connects the adapter and the rod, and is used to provide a force for maintaining a relative position between the adapter and the rod.
2. The test lead according to claim 1, characterized in that: The rod portion includes a rod body and a first fixing block, the rod body extends along a predetermined direction, the first fixing block is connected to the rod body along the predetermined direction, and the first fixing block has a first through hole; The adapter comprises a first connecting block and a second connecting block, the first connecting block is connected to one side of the second connecting block, the first probe is connected to the other side of the second connecting block, and the first connecting block has a connecting hole; The fastening mechanism is disposed through the first through hole and the connecting hole.
3. The pen probe according to claim 2, characterized in that, The rod portion includes a second fixing block, which is connected to the rod body along the predetermined direction, and the second fixing block is spaced apart from the first fixing block along a direction passing through the center of the first through hole and perpendicular to the predetermined direction. The second fixing block has a second through hole, and the first connecting block is arranged between the first fixing block and the second fixing block. The fastening mechanism is penetrated through the first through hole, the connecting hole and the second through hole.
4. The pen probe according to claim 3, characterized in that, The fastening mechanism is threadedly connected to the second through hole.
5. The pen probe according to claim 2, characterized in that, The outer circumferences of the first fixing block and the first connecting block are in an arc shape, the rod body is connected to the outer circumference of the first fixing block, and the second connecting block is connected to the outer circumference of the first connecting block.
6. The pen probe according to claim 2, characterized in that, The first connecting block has a protrusion protruding toward the first fixing block.
7. The pen probe according to claim 6, characterized in that, The protrusion is arranged on a side of the first connecting block close to the rod body.
8. The pen probe according to claim 1, characterized in that, It also includes a second probe, which is sleeved on the first probe and can be detachably installed on the adapter.
9. The pen probe according to claim 8, characterized in that, The adapter comprises a mounting block, the mounting block surrounds a portion of the outer circumference of the first probe, and the second probe is mounted on the mounting block.
10. The pen probe according to claim 9, characterized in that, The second probe is threadedly connected to the mounting block.