A connection probe assembly for an electrical testing device and an electrical testing device

Abstract

This application discloses a connection probe assembly for an electrical testing device and an electrical testing device. The connection probe assembly includes: a probe holding sleeve with a rotary drive component coaxially disposed at its top; and a probe assembly coaxially disposed within the cavity of the probe holding sleeve and the rotary drive component. The probe assembly includes: a probe with a protective sleeve covering its upper part; and a vertical movement assembly fitted around the outer periphery of the probe. The vertical movement assembly includes a driven component and a driving component. The driven component is fixedly connected to the protective sleeve, and the driving component is fixedly connected to the rotary drive component. The rotary drive component can rotate relative to the probe holding sleeve along its axis under external force. The driving component cooperates with the driven component to allow the protective sleeve to drive the probe to move along its axial direction. This connection probe assembly can conceal the probe internally, preventing it from being exposed, thus improving the probe's durability and service life.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of electrical testing technology. More specifically, this utility model relates to a connection probe assembly for an electrical testing device and an electrical testing device. Background Technology

[0002] Electrical testing devices are specialized equipment or systems used to monitor, measure, and analyze various parameters and equipment status in the electrical systems of power plants. Their core purpose is to ensure the safe, stable, and efficient operation of power plants, while preventing faults, optimizing performance, and meeting the specifications for power production and transmission. In power plants, the simplest and most common electrical testing devices are usually basic instruments or sensors that directly measure key electrical parameters and are characterized by low cost, simple operation, and wide application.

[0003] Clamp-on ammeters are a typical example of the simplest and most common electrical testing devices. Their portable design makes them suitable for rapid on-site testing. Some models integrate voltage and resistance measurement functions, making them suitable for temporary testing of line current (such as troubleshooting suspected overloaded branch circuits) and verifying the accuracy of the secondary current of current transformers. Currently, although some clamp-on ammeter models on the market integrate voltage and resistance measurement functions, they still have some shortcomings in practical use. For example, the testing probes of clamp-on ammeters are exposed when not in use, which may lead to accidental collisions over time. Furthermore, the wires connecting the testing probes to the device have poor protection; careless users can easily cause irreversible damage to the wires, and the overall durability of the device needs improvement. Utility Model Content

[0004] In order to solve one or more of the technical problems mentioned above, this utility model provides an electrical testing device that can hide the probe inside when the testing device is not in use, so that it is not exposed to the outside, thereby improving the durability and service life of the probe.

[0005] According to a first aspect of the present invention, a connection probe assembly for an electrical testing device is provided. The connection probe assembly includes: a probe holding sleeve with a rotary drive component coaxially disposed at its top; and a probe assembly coaxially disposed within the cavity of the probe holding sleeve and the rotary drive component. The probe assembly includes: a probe with a protective sleeve covering its upper part; and a vertical movement assembly fitted around the outer periphery of the probe. The vertical movement assembly includes a driven component and a driving component, the driven component being fixedly connected to the protective sleeve, and the driving component being fixedly connected to the rotary drive component. The rotary drive component can rotate relative to the probe holding sleeve along its axis under the action of an external force. The driving component cooperates with the driven component to enable the protective sleeve to drive the probe to move along its axial direction.

[0006] In some embodiments, the driven component includes: a base sleeved on the lower part of the probe, with a limiting rod fixed to the bottom surface of the base; a threaded cylinder coaxially sleeved on the middle part of the probe, with both ends of the threaded cylinder fixedly connected to the bottom of the protective sleeve and the base, respectively; and a limiting seat fixed inside the probe holding sleeve and located below the base. The driving component cooperates with the threaded cylinder to drive its rotation, and the limiting rod and the limiting seat form an insertion engagement.

[0007] In some embodiments, the active component includes: a drive ring sleeved on and threadedly connected to the threaded cylinder; and a connecting cylinder, one end of which is sleeved on and connected to the drive ring, and the other end of which is connected to the rotation drive component, the connecting cylinder being connected to the inner circumferential wall of the probe holding sleeve via a bearing.

[0008] In some embodiments, the base is constructed as a circular plate structure, which is coaxially sleeved on the lower part of the probe. The limiting rod includes two vertical rods, which are symmetrically arranged with respect to the center point of the circular plate structure.

[0009] In some embodiments, the rotary drive component has a through channel formed along the axial direction for accommodating the protective sleeve, wherein the outer peripheral wall of the rotary drive component has an anti-slip structure.

[0010] In some embodiments, an anti-slip sleeve is provided on the outer peripheral wall of the probe holding sleeve.

[0011] In some embodiments, the device further includes a connecting wire, one end of which is connected to the probe holding sleeve, and the other end of which is provided with a connector for connecting to a detection device. The connecting wire includes: multiple wire groups, each wire group including an aluminum wire, a copper sleeve, and a first sheath sequentially arranged, the aluminum wire being connected to the probe, and the copper sleeve being fixedly connected to the aluminum wire; and a protective layer, which is sleeved on the outer periphery of the multiple wire groups. The protective layer includes a second sheath, an armor layer, and an outer wall layer sequentially arranged, the second sheath having multiple buffer cavities within its wall surface, and one end of the outer wall layer being connected to the probe holding sleeve.

[0012] In some embodiments, a filler is provided between the second sheath and a plurality of first sheaths.

[0013] In some embodiments, the plurality of buffer cavities are distributed in a ring at equal intervals relative to the center point of the second sheath.

[0014] According to a second aspect of the present invention, an electrical testing device is provided. The electrical testing device includes a device body and the aforementioned connection probe assembly.

[0015] With the connection probe assembly provided above, on the one hand, after use, the probe can be retracted into the probe holding sleeve, which can effectively prevent it from being exposed to the outside and improve the durability of the connection probe assembly; on the other hand, during use, when the wire is subjected to external pressure and impact, the buffer cavity in the second sheath will buffer the impact force, and the armor layer can effectively block sharp objects from the outside, greatly improving the overall durability of the wire structure and further enhancing the durability of the detection device. Attached Figure Description

[0016] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0017] Figure 1 This is a schematic diagram of the structure of the connection probe assembly used in the electrical testing device according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the connecting wire of the connecting probe assembly according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the electrical testing device according to an embodiment of the present invention. Detailed Implementation

[0020] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0021] According to a first aspect of this utility model, a connection probe assembly 100 for an electrical testing device is provided. For example... Figure 1As shown, the connecting probe assembly 100 includes: a probe holding sleeve 1, with a rotary drive component 11 coaxially disposed on its top; and a probe assembly 2, coaxially disposed within the cavity of the probe holding sleeve 1 and the rotary drive component 11. The probe assembly 2 includes: a probe 21, with a protective sleeve 211 fitted on its upper part; and a vertical movement assembly, fitted around the outer periphery of the probe 21. The vertical movement assembly includes a driven component 3 and an active component 4. The driven component 3 is fixedly connected to the protective sleeve 211, and the active component 4 is fixedly connected to the rotary drive component 11. The rotary drive component 11 can rotate relative to the probe holding sleeve 1 along its axis under the action of an external force. The active component 4 cooperates with the driven component 3 so that the protective sleeve 211 can drive the probe 21 to move along its axial direction.

[0022] In practical use, the connecting probe assembly 100 according to this embodiment of the present invention is connected to a basic instrument or sensor used for electrical testing in a power plant, such as a clamp meter main unit. Upon reaching the testing position, the operator applies an appropriate force to the rotary drive component 11, causing it to rotate clockwise or counterclockwise. The rotary drive component 11 is connected to the active component 4, and its rotation drives the active component 4 to rotate synchronously. The active component 4 cooperates with the driven component 3, which drives the protective sleeve 211 and simultaneously moves the probe 21 upwards along its axial direction, allowing the probe 21 to extend out of the probe portion and grip the sleeve 1 for use. Simultaneously, the protective sleeve 211 provides some protection for the probe 21, preventing it from being interfered with or damaged by external factors when not in contact with the testing object. After testing, to protect the probe 21 and the protective sleeve 211 and prevent damage during non-use, the operator must retract them. At this point, the operator applies force to the rotary drive component 11 again, causing it to rotate in the opposite direction. The rotary drive component 11 drives the active component 4 to rotate. After the active component 4 cooperates with the driven component 3, the probe 21 retracts into the probe holding sleeve 1 under the action of the protective sleeve 211. At this time, the protective sleeve 211 protects the probe 21 again inside the probe holding sleeve 1, effectively isolating it from external air, moisture, and dust, thereby preventing the probe 21 from rusting or corroding and effectively improving the durability of the connecting probe assembly 100.

[0023] With the above settings, after the connection probe assembly 100 according to the present utility model embodiment is used, the probe 21 can be retracted into the inside of the probe part holding sleeve 1, thereby effectively preventing it from being exposed to the outside and improving the durability and service life of the connection probe assembly 100.

[0024] Please continue to refer to Figure 1In some embodiments, the driven component 3 may include: a base 31, which is sleeved on the lower part of the probe 21, and a limiting rod 32 is fixed on the bottom surface of the base 31; a threaded cylinder 33, which is coaxially sleeved on the middle part of the probe 21, and the two ends of the threaded cylinder 33 are fixedly connected to the bottom of the protective sleeve 211 and the base 31 respectively; and a limiting seat 34, which is fixed inside the probe part holding sleeve 1 and located below the base 31. The driving component 4 cooperates with the threaded cylinder 33 to drive the threaded cylinder 33 to rotate, and the limiting rod 32 and the limiting seat 34 form an insertion engagement.

[0025] In this application, the protective sleeve 211 can be made of high-strength, high-toughness engineering plastic to give it good insulation and protective properties. This provides effective protection for the probe 21, preventing it from being damaged by external impacts, scratches, or other abrasions.

[0026] In this application, the threaded cylinder 33 can be made of metal material, and the surface is precision machined to ensure high thread accuracy, so as to ensure that power can be transmitted smoothly and steadily during rotation.

[0027] In this application, the bottom end of the threaded cylinder 33 is fixedly connected to a base 31, which serves as a connection and support, providing a stable installation foundation for the limit rod 32.

[0028] In this application, the limiting rod 32 can be made of high-strength metal material to give it sufficient rigidity and strength, so as to withstand the force generated by the threaded cylinder 33 during axial movement, and ensure that the threaded cylinder 33 can move linearly along the axial direction without rotational deviation.

[0029] In this application, the limiting rod 32 and the limiting seat 34 can form a gap insertion fit. The limiting seat 34 is sleeved on the lower part of the outer wall of the limiting rod 32. The limiting seat 34 is fixedly connected to the inner wall of the probe part holding sleeve 1. The limiting seat 34 plays a limiting and guiding role for the limiting rod 32, further ensuring the stability of the movement of the threaded cylinder 33.

[0030] Please continue to refer to Figure 1 In some embodiments, the active component 4 includes: a drive ring 41, which is sleeved on and threadedly connected to the threaded cylinder 33; and a connecting cylinder 42, one end of which is sleeved on and connected to the drive ring 41, and the other end of which is connected to the rotation drive component 11. The connecting cylinder 42 is connected to the inner peripheral wall of the probe holding sleeve 1 through a bearing 43.

[0031] In this application, the drive ring 41 can be made of metal material, and its outer wall is polished to make the surface smooth, so that the connection with the connecting cylinder 42 is tight and reliable.

[0032] In this application, the outer wall of the drive ring 41 is fixedly sleeved with the connecting cylinder 42, and the connecting cylinder 42 is rotatably connected to the probe holding sleeve 1 through the ball bearing 43. The ball bearing 43 has the characteristics of low friction and flexible rotation, which can ensure that the connecting cylinder 42 has low resistance and low noise during rotation, thereby improving the comfort and convenience of operation.

[0033] Please continue to refer to Figure 1 In some embodiments, the base 31 may be constructed as a circular plate structure, which is coaxially sleeved on the lower part of the probe 21. The limiting rod 32 includes two vertical rods 321, which are symmetrically arranged with respect to the center point of the circular plate structure.

[0034] In this application, the bottom end of the threaded cylinder 33 is fixedly connected to a base 31, which serves as a connection and support, providing a stable installation foundation for the vertical rod 321.

[0035] In this application, the vertical rod 321 can be made of high-strength metal material, with sufficient rigidity and strength to withstand the force generated by the threaded cylinder 33 during axial movement, ensuring that the threaded cylinder 33 can only move in a straight line along the axial direction and will not rotate or deviate.

[0036] With the above arrangement, a pair of vertical rods 321 are symmetrically arranged with respect to the center point of the circular plate structure. This symmetrical arrangement can ensure that the threaded cylinder 33 is subjected to uniform force during movement, avoid the threaded cylinder 33 from tilting or jamming due to uneven force, ensure that the extension and retraction of the probe 21 is smooth and stable, and improve the reliability and stability of the equipment.

[0037] In accordance with the above description, when the driving component 4 and the driven component 3 are used together, the operator applies an appropriate force to the rotary drive component 11, causing it to rotate clockwise. The rotary drive component 11 is connected to the drive ring 41, and the rotation of the rotary drive component 11 drives the drive ring 41 to rotate clockwise synchronously. The drive ring 41 has internal threads that engage with the external threads of the threaded cylinder 33, forming a threaded connection structure. When the drive ring 41 rotates clockwise, a force is generated under the transmission action of the threads, causing the threaded cylinder 33 to move axially. At the same time, the two vertical rods 321 are vertically fixed in a suitable position, limiting the movement of the threaded cylinder 33 and preventing it from deviating during rotation, ensuring that the threaded cylinder 33 can only move linearly along the axial direction. Under the combined action of the threaded drive and the limiting action of the vertical rod 321, the threaded cylinder 33 drives the protective sleeve 211 and the probe 21 to slowly move out of the probe holding sleeve 1. During the removal process, the protective sleeve 211 provides initial protection for the probe 21, preventing the probe 21 from being interfered with or damaged by external factors before it comes into contact with the object being tested. After the test is completed, in order to protect the probe 21 and the protective sleeve 211 from damage when not in use, the operator applies force to the rotary drive component 11 again to make it rotate counterclockwise. The counterclockwise rotating rotary drive component 11 drives the drive ring 41 to rotate counterclockwise. Under the action of threaded transmission and vertical rod 321 limiting, the threaded cylinder 33 drives the protective sleeve 211 and the probe 21 to slowly retract into the probe part holding sleeve 1. When the protective sleeve 211 and the probe 21 are completely retracted into the probe part holding sleeve 1, the protective sleeve 211 wraps the probe 21, thereby isolating it from external air, moisture and dust, preventing the probe 21 from rusting or being corroded, thus effectively improving the durability of the device and extending the service life of the clamp ammeter.

[0038] In some embodiments, the rotary drive component 11 may have a through channel formed along the axial direction for accommodating the protective sleeve 211, wherein the outer peripheral wall of the rotary drive component 11 is formed with an anti-slip structure (not shown in the figure).

[0039] In this application, the outer wall of the rotary drive component 11 is processed with an anti-slip structure. The anti-slip structure can be distributed in a regular stripe pattern, and its depth and width can be designed according to actual needs. This can increase the friction between the operator's hand and the rotary drive component 11, allowing the operator to easily apply torque without causing discomfort to the hand, thus improving the comfort and convenience of operation.

[0040] In some embodiments, an anti-slip sleeve is provided on the outer peripheral wall of the probe holding sleeve 1.

[0041] In this application, the anti-slip sleeve can be made of a high-friction coefficient rubber material with fine anti-slip texture on the surface. This effectively increases the friction between the operator's hand and the probe grip sleeve 1, preventing the probe grip sleeve 1 from slipping due to sweaty hands or equipment shaking during operation, thereby improving the safety and stability of the operation.

[0042] Please refer to Figure 2 and Figure 3 In some embodiments, a connecting wire 200 may also be included. One end of the connecting wire 200 is connected to the probe holding sleeve 1, and the other end of the connecting wire 200 is provided with a connector 201 for connecting to a detection device. The connecting wire 200 includes: multiple wire groups 5, each wire group 5 including an aluminum wire 51, a copper sleeve 52, and a first sheath 53 sequentially sleeved. The aluminum wire 51 is connected to the probe 21, and the copper sleeve 52 is fixedly connected to the aluminum wire 51; and a protective layer 6, which is sleeved on the outer periphery of the multiple wire groups 5. The protective layer 6 includes a second sheath 61, an armor layer 62, and an outer wall layer 63 sequentially sleeved. The wall surface of the second sheath 61 is provided with multiple buffer cavities 611, and one end of the outer wall layer 63 is connected to the probe holding sleeve 1.

[0043] In this application, the connecting wire 200 includes a plurality of aluminum wires 51, which serve as current carriers and have the characteristics of being lightweight and having good conductivity.

[0044] In this application, the first sheath 53 can be made of rubber material with good insulation properties, which can effectively isolate the aluminum wire 51 from the external environment, prevent short circuits between the aluminum wires 51, and protect the aluminum wire 51 from external mechanical damage.

[0045] In this application, the second sheath 61 may be made of silicone material to give it better cushioning performance and provide additional protection for the first sheath 53 and the aluminum wire 51.

[0046] In this application, the multiple buffer cavities inside the second sheath 61 allow the silicone material to deform when the connecting wire 200 is subjected to external pressure or impact, absorbing and dispersing the energy of the impact force, thereby reducing the damage to the internal structure of the connecting wire 200 and improving the impact resistance of the connecting wire 200.

[0047] In this application, the armor layer 62 can be woven from high-strength metal wire or alloy material to give it excellent tensile, cut, and puncture resistance. Thus, when a sharp object approaches the connecting wire 200, the armor layer 62 can effectively block it, preventing the sharp object from penetrating the insulation layer and damaging the conductor of the connecting wire 200, thereby protecting the overall structure of the connecting wire 200 from damage.

[0048] In this application, the outer wall layer 63 can be the outer insulating wrapping layer of a common wire, which can further protect the connecting wire 200 from the influence of external environmental factors and extend the service life of the connecting wire 200.

[0049] In this application, the copper sleeve 52 can be made of high-purity copper material to give it good electrical and thermal conductivity. The copper sleeve 52 can tightly wrap around the outer wall of the aluminum wire 51, serving as a transition and connection, improving the connection strength and stability between the aluminum wire 51 and the first sheath 53, while also improving current transmission performance and reducing resistance loss. With this configuration, the copper sleeve 52 and the aluminum wire 51 form a copper-clad aluminum conductor structure. This structure combines the high conductivity of copper and the lightweight advantages of aluminum, ensuring efficient current transmission while reducing the weight of the connecting wire 200 and lowering the overall energy consumption of the equipment. This structure undergoes special processing, resulting in a tight bond between the copper and aluminum layers, exhibiting good mechanical and electrical properties, and maintaining stable performance during long-term use.

[0050] Please refer to Figure 2 In some embodiments, a filler 64 may be provided between the second sheath 61 and the plurality of first sheaths 53.

[0051] With the above arrangement, a filler 64 is provided between the multiple first sheaths 53 and the second sheaths 61. The filler 64 can be made of foam material with good elasticity and insulation properties. In this way, filling the gap between the first sheaths 53 and the second sheaths 61 plays a role in buffering and supporting. When the connecting wire 200 is subjected to external pressure, the filler 64 can absorb part of the impact force, reduce damage to the aluminum wire 51, and at the same time ensure the tightness and stability of the internal structure of the connecting wire 200.

[0052] In some embodiments, the plurality of buffer cavities 611 may be distributed in a ring at equal intervals relative to the center point of the second sheath 61.

[0053] With the above arrangement, multiple buffer cavities 611 are distributed in a ring at equal intervals relative to the center point of the second sheath 61. This distribution method enables the buffer cavities 611 to evenly disperse the impact force when subjected to external impact, thereby improving the buffering effect. At the same time, the ring at equal intervals can also ensure the structural strength and stability of the second sheath 61, avoiding deformation or breakage of the second sheath 61 due to uneven distribution of the buffer cavities 611, thereby improving the overall durability and reliability of the conductor.

[0054] As described above, the connecting wire 200, as a crucial channel connecting various components, is of paramount importance for its safety. However, due to operator negligence or the complexity of the working environment, the connecting wire 200 may be subjected to external pressure or impact. In this application, when the connecting wire 200 is subjected to external pressure or impact, the buffer cavity 611 in the second sheath 61 plays a buffering role. The buffer cavity 611 is filled with a material with good elasticity and energy absorption properties. When subjected to impact, these materials deform, absorbing and dispersing the energy of the impact, thereby reducing damage to the internal structure of the connecting wire 200. At the same time, the armor layer 62 is woven from high-strength metal wire or alloy material, possessing excellent tensile, cut, and puncture resistance. When a sharp object approaches the connecting wire 200, the armor layer 62 can effectively block it, preventing the sharp object from penetrating the insulation layer and damaging the conductor of the connecting wire 200, thus protecting the overall structure of the connecting wire 200 from damage. Through the dual protection of the buffer cavity 611 and the armor layer 62, the durability of the overall structure of the connecting wire 200 is greatly improved, reducing detection interruptions and maintenance costs caused by damage to the connecting wire 200, further enhancing the overall durability of the clamp ammeter, enabling it to work stably and reliably in various complex environments.

[0055] According to a second aspect of this utility model, an electrical detection device 300 is provided. For example... Figure 3 As shown, the electrical testing device 300 includes a device body 301 and the aforementioned connection probe assembly 100.

[0056] In this application, the device body 301 can typically be a basic instrument or sensor, such as a clamp meter main unit. As the core component of the entire electrical detection device 300, the device body 301 integrates key electronic components such as a power supply module, signal processing module, and display module. The power supply module is responsible for providing stable and reliable power to the entire system, ensuring the normal operation of each module; the signal processing module possesses powerful signal processing capabilities, capable of amplifying, filtering, rectifying, and performing a series of other processing on the acquired weak electrical signals; and the display module presents the detection results to the operator in an intuitive digital format.

[0057] In this application, two sets of probe grip sleeves 1 are provided on one side of the device body 301, which can be configured as a pair of handles for the operator. The probe grip sleeves 1 adopt an ergonomic design, with a shape that conforms to the contour of the operator's hand, and the surface is finely polished for a comfortable feel. The top of the probe grip sleeve 1 is provided with a probe 21, which is a key component used to directly contact the electrical component under test to collect current signals. The probe 21 is made of a highly conductive and highly wear-resistant alloy material, and its surface is specially treated to have good anti-oxidation and anti-corrosion properties to ensure the accuracy and stability of signal acquisition during long-term use. The probe 21 is connected to the probe grip sleeve 1 through an up-and-down moving assembly. The bottom of the connecting probe assembly 100 is provided with a connector 201, which is plugged into the device body 301. This plugging method is convenient and quick, and facilitates the assembly and disassembly of the equipment. It also ensures the firmness and stability of the connection. The connector 201 and the probe 21 are connected by a wire group 5. The wire group 5 serves as a channel for the transmission of current signals, and its performance directly affects the accuracy of the detection results.

[0058] In this application, after the protective sleeve 211 and probe 21 are fully extended to the appropriate position, the operator presses the start button on the clamp-on ammeter main unit. At this time, the power module inside the clamp-on ammeter starts working, providing stable power to the entire system. The signal processing module, display module, and other electronic components initialize in sequence and enter the test state. Then, the operator holds the sleeve 1 with the probe part and accurately contacts the electrical component to be tested with the probe 21. When contacting, it is necessary to ensure that the contact surface is clean and free of oxide layer or dirt to ensure good conductivity. The current in the electrical component to be tested flows into the clamp-on ammeter through the probe 21. The probe 21 transmits the collected current signal to the signal processing module. The signal processing module first amplifies the weak current signal to make it a signal strength suitable for subsequent processing; then, it removes noise and interference components from the signal through the filtering circuit to improve the signal-to-noise ratio; finally, it rectifies the signal to convert the AC signal into a DC signal for subsequent measurement and display. The processed signal is transmitted to the display module, which displays the current of the electrical component to be tested in digital form. The operator can then read the test data and complete the test.

[0059] In the foregoing description of this application, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "linked" should be interpreted broadly. For example, the term "linked" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this application, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0060] Based on the above description of this application, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this application. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as a limitation on the present invention.

[0061] Furthermore, the terms "first" or "second," etc., used in this application to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as explicitly or implicitly indicating relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0062] While various embodiments of the present invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A connection probe assembly for an electrical testing device, characterized by, include: The probe part holds the sleeve, and a rotary drive component is coaxially arranged on its top; and, A probe assembly is coaxially disposed within the cavity of the probe holding sleeve and the rotary drive component. The probe assembly includes: a probe with a protective sleeve covering its upper part; and a vertical movement component fitted around the outer periphery of the probe. The vertical movement component includes a driven component and an active component. The driven component is fixedly connected to the protective sleeve, and the active component is fixedly connected to the rotary drive component. The rotary drive component can rotate relative to the probe holding sleeve along the axis under the action of external force. The active component cooperates with the driven component so that the protective sleeve can drive the probe to move along its axial direction.

2. The connection probe assembly of claim 1, wherein The driven component includes: A base is fitted onto the lower part of the probe, and a limit rod is fixed to the bottom surface of the base; A threaded cylindrical body, coaxially sleeved in the middle of the probe, with its two ends fixedly connected to the bottom of the protective sleeve and the base, respectively; and, A limiting seat is fixed inside the probe part holding sleeve and located below the base; The active component engages with the threaded cylinder to drive the threaded cylinder to rotate, and the limiting rod engages with the limiting seat.

3. The connecting probe assembly of claim 2, wherein The active component includes: A drive ring, which is sleeved on the threaded cylinder and threadedly connected to the threaded cylinder; and, A connecting cylinder is fitted at one end to the drive ring and at the other end to the rotary drive component. The connecting cylinder is connected to the inner circumferential wall of the probe holding sleeve via a bearing.

4. The connection probe assembly according to claim 2, characterized in that, The base is constructed as a circular plate structure, which is coaxially sleeved on the lower part of the probe. The limiting rod includes two vertical rods, which are symmetrically arranged with respect to the center point of the circular plate structure.

5. The connecting probe assembly according to any one of claims 1 to 4, wherein The rotary drive component has a through channel formed along the axial direction, the through channel being used to accommodate the protective sleeve, wherein the outer peripheral wall of the rotary drive component has an anti-slip structure.

6. The connecting probe assembly according to any one of claims 1 to 4, wherein An anti-slip sleeve is fitted on the outer peripheral wall of the probe part holding sleeve.

7. The connecting probe assembly of claim 1, wherein It also includes a connecting wire, one end of which is connected to the probe holding sleeve, and the other end of which is provided with a connector for connecting to a detection device. The connecting wire includes: Multiple conductor groups, each conductor group comprising sequentially sleeved aluminum wire, copper sleeve, and first sheath, wherein the aluminum wire is connected to the probe, and the copper sleeve is fixedly connected to the aluminum wire; and, A protective layer is fitted around the periphery of the plurality of wire groups. The protective layer includes a second sheath, an armor layer and an outer wall layer fitted in sequence. The wall of the second sheath is provided with a plurality of buffer cavities. One end of the outer wall layer is connected to the probe holding sleeve.

8. The connecting probe assembly of claim 7, wherein, A filler is provided between the second sheath and the plurality of first sheaths.

9. The connecting probe assembly of claim 7, wherein, The multiple buffer cavities are distributed in a ring at equal intervals relative to the center point of the second sheath.

10. An electrical detection device, characterized by It includes the device body and the connection probe assembly according to any one of claims 1 to 9.

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