Detection device

Abstract

This invention provides a detection device, comprising: a main body; a power receiving terminal; a stop component movably disposed on the main body, wherein when the stop component is in the stop position, it can abut against the power receiving terminal to maintain a conductive state between the power receiving terminal and the detection terminal; when the stop component is in the disengaged position, it separates from the power receiving terminal to separate the power receiving terminal from the detection terminal; and a positioning component movably disposed on the main body or on the stop component, wherein when the positioning component is in the positioning position, it is positioned against the stop component to maintain the stop component's position; and when the positioning component is in the unlocked position, it disengages from the stop component to allow the stop component to move. The technical solution of this application effectively solves the problem of unstable connection between detection devices and electrical equipment in related technologies.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and more specifically, to a detection device. Background Technology

[0002] Three-phase sequence detection is a crucial task in power systems, ensuring the correct phase sequence in the three-phase circuit and thus guaranteeing the normal operation of the power system. Incorrect phase sequence can lead to motor reversal, equipment damage, and even accidents; therefore, phase sequence detection is of paramount importance to power systems. The principle of three-phase sequence detection is primarily based on the phase relationships within the three-phase circuit.

[0003] In related technologies, testing the three-phase sequence requires personnel to hold the testing device and connect it to the electrical equipment to be tested. This handheld operation is inconvenient. Furthermore, securing the connection points between the testing device and the equipment can lead to unstable connections, resulting in poor connection quality and affecting the testing results. Summary of the Invention

[0004] The main objective of this invention is to provide a detection device to solve the problem of unstable connection between detection devices and electrical equipment in related technologies.

[0005] To achieve the above objectives, the present invention provides a detection device that connects to the detection terminals of an electrical device to detect the three-phase sequence of the electrical device. The detection device includes: a main body; a power receiving terminal disposed on the main body and used for connecting to the detection terminal; a stop component movably disposed on the main body, the stop component having a stop position and a disengagement position. When the stop component is in the stop position, the stop component can abut against the power receiving terminal to keep the power receiving terminal and the detection terminal in a conductive state. When the stop component is in the disengagement position, the stop component is disengaged from the power receiving terminal to allow the power receiving terminal to be separated from the detection terminal; and a positioning component movably disposed on the main body or on the stop component, the positioning component having a positioning position and an unlocking position. When the positioning component is in the positioning position, the positioning component is positioned and engaged with the stop component to keep the stop component in a fixed position. When the positioning component is in the unlocking position, the positioning component is disengaged from the stop component to allow the stop component to move.

[0006] Furthermore, the abutment component includes a support structure that is movable in the vertical direction and an abutment structure disposed at the top of the support structure. The support structure is connected to the main body, and the positioning component can be positioned and engaged with the support structure or disengaged from the positioning engagement.

[0007] Furthermore, the abutment structure includes a mounting block and an abutment block movably disposed on the mounting block. The mounting block is connected to the support structure. The detection terminal includes a first detection terminal, and the power connection terminal includes a first power connection terminal corresponding to the first detection terminal. When the abutment component is in the abutment position, the abutment block has a first contact position and a first disengagement position. When the abutment block is in the first contact position, the abutment block abuts against the first power connection terminal so that the first power connection terminal and the first detection terminal remain in a conductive state. When the abutment block is in the first disengagement position, the abutment block separates from the first power connection terminal.

[0008] Furthermore, the abutment structure also includes an abutment arm, which is rotatably mounted on the mounting block and located on the outside of the abutment block. The detection terminal also includes a second detection terminal spaced apart from the first detection terminal, and the power connection terminal also includes a second power connection terminal corresponding to the second detection terminal. When the abutment assembly is in the abutment position, the abutment arm has a second abutment position and a second disengagement position. When the abutment arm is in the second abutment position, the abutment arm abuts against the second power connection terminal so that the second power connection terminal and the second detection terminal remain in a conductive state. When the abutment arm is in the second disengagement position, the abutment arm separates from the second power connection terminal.

[0009] Furthermore, the abutment structure also includes a movable retainer that can abut against the lower surface of the abutment arm so that the abutment arm is held in the second abutment position. The retainer moves and separates from the abutment arm so that the abutment arm switches from the second abutment position to the second disengagement position under the action of gravity.

[0010] Furthermore, the support structure includes a nested outer sleeve and a sliding rod, one of which is connected to the abutment structure, and the other of which is connected to the main body.

[0011] Furthermore, the positioning component includes an operating lever and a pin. The operating lever is connected to the outer sleeve, and the slide rod is provided with a plurality of insertion holes spaced apart along the axial direction of the slide rod. The pin is movably disposed on the operating lever. When the positioning component is in the positioning position, the pin engages with one of the insertion holes to keep the outer sleeve and the slide rod in the same position. When the positioning component is in the unlocking position, the pin separates from the insertion hole to allow the outer sleeve and the slide rod to slide relative to each other.

[0012] Furthermore, the positioning assembly also includes a rotating cylinder sleeved on the operating lever, the rotating cylinder being connected to a pin bearing, and the rotating cylinder being threadedly connected to the operating lever. When the rotating cylinder rotates, it drives the pin to move.

[0013] Furthermore, the detection device also includes a strap and an adjustable length structure. A receiving space for accommodating an arm is formed between the strap and the main body. The first end of the strap is connected to the main body, which has an opening slot. The adjustable length structure is telescopically disposed in the opening slot and connected to the second end of the strap. The size of the receiving space can be adjusted when the adjustable length structure is telescopically extended or retracted.

[0014] Furthermore, the detection device also includes a positioning screw, and the length adjustment structure includes a connecting block. The connecting block is provided with a groove extending along the extension direction of the length adjustment structure. The groove includes a shallow groove section and a deep groove section that are connected together. The deep groove section is located outside the shallow groove section. The positioning screw is movably inserted into the main body. The positioning screw has an operating end located outside the main body and a mating end located in the opening groove. The mating end can mate with either the shallow groove section or the deep groove section. When the mating end mates with the shallow groove section, the connecting block can move. When the mating end mates with the deep groove section, the connecting block remains in a fixed position.

[0015] Applying the technical solution of this invention, the detection device is connected to the detection terminals of the electrical equipment for detecting the three-phase sequence of the electrical equipment. The main body provides a mounting base for other components of the detection device and enables the detection device to detect the three-phase sequence. A connecting terminal is disposed on the main body and is used to connect to the detection terminal. A stop assembly is movably disposed on the main body, having a stop position and a disengaged position. When the stop assembly is in the stop position, it can abut against the connecting terminal, providing a stop force to the connecting terminal, thus ensuring a stable connection between the connecting terminal and the detection terminal. This maintains a conductive state between the connecting terminal and the detection terminal, reducing the possibility of poor contact between the detection device and the electrical equipment. When the stop assembly is in the disengaged position... The abutment component separates from the power terminal, thereby allowing the power terminal to separate from the detection terminal, thus enabling the separation of the detection device and the electrical equipment. The positioning component is movably mounted on the main body or on the abutment component. The positioning component has a positioning position and an unlocking position. When the positioning component is in the positioning position, it engages with the abutment component, keeping the abutment component in a fixed position. If the abutment component is switched to the abutment position and then the positioning component is switched back to the positioning position, the abutment component remains in the abutment position. When the abutment component needs to be moved, the positioning component is in the unlocking position, disengaging from the abutment component and allowing the abutment component to move, thus enabling the abutment component to switch positions. Through the cooperation of the abutment component and the positioning component, the abutment component can be stably maintained in the abutment position, ensuring a stable connection and stable conduction between the detection device and the electrical equipment. Therefore, the technical solution of this application can effectively solve the problem of unstable connection between the detection device and the electrical equipment in related technologies. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the detection device according to the present invention is shown;

[0018] Figure 2 It shows Figure 1 A three-dimensional structural diagram of the detection device from another angle;

[0019] Figure 3 It shows Figure 1 A three-dimensional structural diagram of the abutment component and the positioning component of the detection device;

[0020] Figure 4 It shows Figure 1 A three-dimensional structural diagram of the top structure of the detection device;

[0021] Figure 5 It shows Figure 4 A three-dimensional structural diagram of the top-supporting structure from another angle.

[0022] The above figures include the following reference numerals:

[0023] 10. Body section; 11. Opening slot;

[0024] 20. Power terminal; 21. First power terminal; 22. Second power terminal;

[0025] 30. Abutment assembly; 31. Support structure; 311. Outer sleeve; 312. Slide rod; 32. Abutment structure; 321. Mounting block; 322. Abutment block; 323. Abutment arm; 324. Retaining element; 3241. Compression spring; 3242. Limiting block; 3243. Guide rod; 3244. Guide block; 3245. Pull ring; 325. Handle; 326. Guide rod; 327. Guide block;

[0026] 40. Positioning assembly; 41. Operating lever; 42. Pin; 43. Rotary drum;

[0027] 51. Straps; 52. Length adjustment structure; 521. Connecting block; 53. Positioning screw;

[0028] 6. Capacity space. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0032] like Figures 1 to 5As shown, this application provides a detection device that connects to the detection terminals of an electrical device to detect the three-phase sequence of the electrical device. An embodiment of the detection device includes: a body 10, a power-connecting terminal 20, a stop component 30, and a positioning component 40. The power-connecting terminal 20 is disposed on the body 10 and used to connect to the detection terminal. The stop component 30 is movably disposed on the body 10 and has a stop position and a disengagement position. When the stop component 30 is in the stop position, it can abut against the power-connecting terminal 20 to maintain a conductive connection between the power-connecting terminal 20 and the detection terminal. In the on state, when the abutment component 30 is in the separated position, the abutment component 30 is separated from the power terminal 20 so that the power terminal 20 can be separated from the detection terminal; the positioning component 40 is movably disposed on the main body 10 or on the abutment component 30. The positioning component 40 has a positioning position and an unlocking position. When the positioning component 40 is in the positioning position, the positioning component 40 and the abutment component 30 are positioned and engaged so that the abutment component 30 remains in a fixed position. When the positioning component 40 is in the unlocking position, the positioning component 40 and the abutment component 30 are disengaged from the positioning engagement so that the abutment component 30 can move.

[0033] Applying the technical solution of this embodiment, the detection device is connected to the detection terminal of the electrical equipment to detect the three-phase sequence of the electrical equipment. The main body 10 provides an installation base for other components of the detection device and realizes the function of the detection device in detecting the three-phase sequence. The power connection terminal 20 is disposed on the main body 10 and is used to connect with the detection terminal. The abutment component 30 is movably disposed on the main body 10. The abutment component 30 has an abutment position and a disengagement position. When the abutment component 30 is in the abutment position, it can abut against the power connection terminal 20. At this time, the abutment component 30 provides abutment force to the power connection terminal 20, so that the power connection terminal 20 and the detection terminal are stably connected, thereby keeping the power connection terminal 20 and the detection terminal in a conductive state, thereby reducing the possibility of poor contact between the detection device and the electrical equipment. When the abutment component 30 is in the disengagement position, the abutment component 30... The detection terminal 20 is separated from the power terminal 0, thus separating the detection device from the electrical equipment. The positioning component 40 is movably mounted on the main body 10 or on the abutment component 30. The positioning component 40 has a positioning position and an unlocking position. When the positioning component 40 is in the positioning position, it engages with the abutment component 30, keeping the abutment component 30 in a fixed position. If the abutment component 30 is switched to the abutment position and then the positioning component 40 is switched back to the positioning position, the abutment component 30 remains in the abutment position. When the abutment component 30 needs to be moved, the positioning component 40 is in the unlocking position, disengaging from the abutment component 30 and allowing the abutment component 30 to move, thus enabling the abutment component 30 to switch positions. Through the cooperation of the abutment component 30 and the positioning component 40, the abutment component 30 is kept stably in the abutment position, ensuring a stable connection and stable conduction between the detection device and the electrical equipment. Therefore, the technical solution of this embodiment can effectively solve the problem of unstable connection between the detection device and the electrical equipment in the related technology.

[0034] like Figures 1 to 5 As shown, the abutment assembly 30 includes a vertically movable support structure 31 and an abutment structure 32 disposed at the top of the support structure 31. The support structure 31 is connected to the main body 10, and the positioning assembly 40 can be positioned and engaged with the support structure 31 or disengaged from it. Specifically, the support structure 31 supports the abutment structure 32 on the one hand, and can also drive the abutment structure 32 to move on the other hand, so that the abutment structure 32 can abut against the electrical terminal 20 or not abut against the electrical terminal 20, thereby enabling the abutment assembly 30 to switch between the abutment position and the disengaged position.

[0035] like Figures 1 to 5As shown, the abutment structure 32 includes a mounting block 321 and an abutment block 322 movably disposed on the mounting block 321. The mounting block 321 is connected to the support structure 31. The detection terminal includes a first detection terminal. The power connection terminal 20 includes a first power connection terminal 21 corresponding to the first detection terminal. When the abutment assembly 30 is in the abutment position, the abutment block 322 has a first contact position and a first disengagement position. When the abutment block 322 is in the first contact position, the abutment block 322 abuts against the first power connection terminal 21 so that the first power connection terminal 21 and the first detection terminal remain in a conductive state. When the abutment block 322 is in the first disengagement position, the abutment block 322 separates from the first power connection terminal 21. Specifically, in this embodiment, the detection terminals include a first detection terminal, a second detection terminal, and a third detection terminal. The first detection terminal is located between the second detection terminal and the third detection terminal. Correspondingly, the power connection terminal 20 includes a first power connection terminal 21, a second power connection terminal 22, and a third power connection terminal. The detection terminals and power connection terminals correspond one-to-one. Therefore, the first power connection terminal 21 is also located between the second power connection terminal 22 and the third power connection terminal. It should be noted that "the abutting component 30 is in the abutting position" means that at this time, the abutting component 30 can simultaneously abut the positions of the three power connection terminals. Furthermore, when the abutting component 30 is in the abutting position, the abutting block 322 has a first abutting position and a first disengaging position. When the abutting block 322 is in the first abutting position, it abuts against the first electrical terminal 21 to keep the first electrical terminal 21 in a conductive state with the first detection terminal. When the abutting block 322 is in the first disengaging position, it separates from the first electrical terminal 21. In this embodiment, a handle 325 is provided on the side of the abutting block 322 away from the first electrical terminal 21, a guide rod 326 is provided on the abutting block 322, and a guide block is provided on the mounting block 321. 327. Guide rod 326 passes through guide block 327 to make abutment block 322 movable, thereby allowing abutment block 322 to switch between first contact position and first disengagement position. When the operator does not want to adjust the position of abutment component 30, but needs the first electrical terminal 21 to be disconnected from the first detection terminal, the operator pulls handle 325 to move abutment block 322 away from the first electrical terminal 21, thereby switching abutment block 322 from the first contact position to the first disengagement position, so that abutment block 322 no longer abuts the first electrical terminal 21.

[0036] like Figures 1 to 5As shown, the abutment structure 32 also includes an abutment arm 323, which is rotatably mounted on the mounting block 321. The abutment arm 323 is located outside the abutment block 322. The detection terminal also includes a second detection terminal spaced apart from the first detection terminal. The power connection terminal 20 also includes a second power connection terminal 22 corresponding to the second detection terminal. When the abutment assembly 30 is in the abutment position, the abutment arm 323 has a second abutment position and a second disengagement position. When the abutment arm 323 is in the second abutment position, the abutment arm 323 abuts against the second power connection terminal 22 so that the second power connection terminal 22 and the second detection terminal remain in a conductive state. When the abutment arm 323 is in the second disengagement position, the abutment arm 323 separates from the second power connection terminal 22.

[0037] Specifically, in this embodiment, there are two abutment arms 323 and related structures that cooperate with them. They are similar in structure and act on the second power terminal 22 and the third power terminal, respectively. This article will describe one of them. When the abutting component 30 is in the abutting position, the abutting arm 323 has a second abutting position and a second disengaging position. When the abutting arm 323 is in the second abutting position, the abutting arm 323 abuts against the second electrical terminal 22 so that the second electrical terminal 22 and the second detection terminal remain in a conductive state. When the abutting arm 323 is in the second disengaging position, the abutting arm 323 is separated from the second electrical terminal 22. In this embodiment, the abutting arm 323 can switch from the second abutting position to the second disengaging position under its own gravity. When the operator does not want to adjust the position of the abutting component 30, but needs the second electrical terminal 22 to be disengaged from the second detection terminal, the abutting arm 323 can be switched from the second abutting position to the second disengaging position. The operator can manually rotate the abutting arm 323 to switch the abutting arm 323 from the second disengaging position to the second abutting position.

[0038] like Figures 1 to 5As shown, the abutting structure 32 also includes a movable retainer 324, which can abut against the lower surface of the abutting arm 323 so that the abutting arm 323 is held in the second abutting position. The retainer 324 moves and separates from the abutting arm 323 so that the abutting arm 323 switches from the second abutting position to the second disengaged position under the action of gravity. Specifically, the retaining member 324 includes a compression spring 3241, a limiting block 3242, a guide rod 3243, a guide block 3244, and a pull ring 3245. The guide block 3244 is mounted on the mounting block 321. The guide rod 3243 is sleeved on the guide block 3244 and can slide. The first end of the guide rod 3243 is provided with the limiting block 3242, and the second end of the guide rod 3243 is provided with the pull ring 3245. The limiting block 3242 can abut against the lower surface of the abutting arm 323. The compression spring 3241 is mounted on the guide rod 3243 to apply a force to the limiting block 3242 in the direction of the second electrical terminal 22 so that the limiting block 3242 can maintain the abutting engagement with the lower surface of the abutting arm 323, thereby keeping the abutting arm 323 in the second abutting position. When the operator pulls the pull ring 3245, the limiting block 3242 can move and no longer abut against the lower surface of the abutting arm 323.

[0039] like Figures 1 to 5 As shown, the support structure 31 includes a nested outer sleeve 311 and a sliding rod 312. One of the outer sleeve 311 and the sliding rod 312 is connected to the abutment structure 32, and the other of the outer sleeve 311 and the sliding rod 312 is connected to the main body 10. In this embodiment, the outer sleeve 311 is connected to the abutment structure 32, and the sliding rod 312 is connected to the main body 10. The outer sleeve 311 and the sliding rod 312 have the advantage of simple structure.

[0040] like Figures 1 to 5 As shown, the positioning component 40 includes an operating lever 41 and a pin 42. The operating lever 41 is connected to the outer sleeve 311. The slide rod 312 is provided with a plurality of insertion holes spaced apart along the axial direction of the slide rod 312. The pin 42 is movably disposed on the operating lever 41. When the positioning component 40 is in the positioning position, the pin 42 is inserted into one of the insertion holes to keep the outer sleeve 311 and the slide rod 312 in a fixed position. When the positioning component 40 is in the unlocked position, the pin 42 is separated from the insertion hole to allow the outer sleeve 311 and the slide rod 312 to slide relative to each other. Specifically, in this embodiment, there are two support structures 31, and the operating rod 41 is connected between the two outer sleeves 311. The operator can manually operate the operating rod 41 so that the outer sleeve 311 and the sliding rod 312 can slide relative to each other. When the abutting component 30 is switched to the abutting position, the positioning component 40 is switched to the positioning position. The pin 42 is inserted into a socket so that the outer sleeve 311 and the sliding rod 312 remain in the same position, thereby allowing the abutting component 30 to remain in the abutting position.

[0041] like Figures 1 to 5 As shown, the positioning assembly 40 also includes a rotating cylinder 43 sleeved on the operating rod 41. The rotating cylinder 43 is bearing-connected to the pin 42 and threadedly connected to the operating rod 41. Rotation of the rotating cylinder 43 can drive the pin 42 to move. Specifically, the operator rotates the rotating cylinder 43, allowing it to move along the extension direction of the operating rod 41. The rotating cylinder 43 is bearing-connected to the pin 42, allowing the pin 42 to move with the rotating cylinder 43, thereby achieving insertion or disengagement from the insertion hole.

[0042] like Figures 1 to 5 As shown, the detection device also includes a strap 51 and an adjustable structure 52. A receiving space 6 for accommodating an arm is formed between the strap 51 and the main body 10. The first end of the strap 51 is connected to the main body 10, which has an opening slot 11. The adjustable structure 52 is telescopically disposed within the opening slot 11 and connected to the second end of the strap 51. The size of the receiving space 6 can be adjusted by extending or retracting the adjustable structure 52. Specifically, when a worker needs to wear the detection device on their arm, the adjustable structure 52 is first extended a certain distance to increase the size of the receiving space 6, making it easier for the arm to enter the receiving space 6. Then, the adjustable structure 52 is retracted a certain distance so that the strap 51 can stably support the arm, preventing the detection device from slipping off.

[0043] like Figures 1 to 5 As shown, the detection device also includes a positioning screw 53, and the length adjustment structure 52 includes a connecting block 521. The connecting block 521 is provided with a sliding groove extending along the extension direction of the length adjustment structure 52. The sliding groove includes a shallow groove section and a deep groove section that are connected together. The deep groove section is located outside the shallow groove section. The positioning screw 53 is movably inserted into the body part 10. The positioning screw 53 has an operating end located outside the body part 10 and a mating end located in the opening groove 11. The mating end can mate with the shallow groove section or the deep groove section. When the mating end mates with the shallow groove section, the connecting block 521 can move. When the mating end mates with the deep groove section, the connecting block 521 remains in a fixed position.

[0044] Specifically, the shallow groove section extends a certain distance along the extension direction of the lengthening structure 52. When the lengthening structure 52 needs to extend a certain distance, the mating end is first moved upward a certain distance, so that the mating end exits from the deep groove section, allowing the mating end to engage with the shallow groove section, thereby pulling the connecting block 521. When the wearing is completed, the connecting block 521 is pushed back so that the mating end corresponds with the deep groove section. Then, the mating end is moved downward a certain distance so that the mating end is inserted into the deep groove section. The deep groove section and the mating end are in a limiting engagement, so that the position of the connecting block 521 remains unchanged.

[0045] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0046] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0047] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A detection device, connected to the detection terminals of an electrical device to detect the three-phase sequence of the electrical device, characterized in that, The detection device includes: Body part(10); A power terminal (20) is provided on the main body (10) and is used to connect to the detection terminal; A stop component (30) is movably disposed on the main body (10). The stop component (30) has a stop position and a separation position. When the stop component (30) is in the stop position, the stop component (30) can abut against the power terminal (20) so that the power terminal (20) and the detection terminal remain in a conductive state. When the stop component (30) is in the separation position, the stop component (30) separates from the power terminal (20) so that the power terminal (20) can separate from the detection terminal. A positioning component (40) is movably disposed on the main body (10) or on the abutting component (30). The positioning component (40) has a positioning position and an unlocking position. When the positioning component (40) is located in the positioning position, the positioning component (40) and the abutting component (30) are positioned and engaged so that the abutting component (30) remains in a fixed position. When the positioning component (40) is located in the unlocking position, the positioning component (40) and the abutting component (30) are disengaged from the positioning engagement so that the abutting component (30) can move.

2. The detection device according to claim 1, characterized in that, The abutting component (30) includes a support structure (31) movable in the vertical direction and an abutting structure (32) disposed at the top of the support structure (31). The support structure (31) is connected to the main body (10). The positioning component (40) can be positioned and engaged with the support structure (31) or disengaged from the positioning engagement.

3. The detection device according to claim 2, characterized in that, The abutting structure (32) includes a mounting block (321) and an abutting block (322) movably disposed on the mounting block (321). The mounting block (321) is connected to the support structure (31). The detection terminal includes a first detection terminal. The power connection terminal (20) includes a first power connection terminal (21) corresponding to the first detection terminal. When the abutting component (30) is in the abutting position, the abutting block (322) has a first abutting position and a first disengaging position. When the abutting block (322) is in the first abutting position, the abutting block (322) abuts against the first power connection terminal (21) so that the first power connection terminal (21) and the first detection terminal remain in a conductive state. When the abutting block (322) is in the first disengaging position, the abutting block (322) separates from the first power connection terminal (21).

4. The detection device according to claim 3, characterized in that, The abutting structure (32) further includes an abutting arm (323), which is rotatably mounted on the mounting block (321). The abutting arm (323) is located outside the abutting block (322). The detection terminal further includes a second detection terminal spaced apart from the first detection terminal. The power connection terminal (20) further includes a second power connection terminal (22) corresponding to the second detection terminal. When the abutting assembly (30) is in the abutting position, the abutting arm (323) has a second abutting position and a second disengaging position. When the abutting arm (323) is in the second abutting position, the abutting arm (323) abuts against the second power connection terminal (22) so that the second power connection terminal (22) and the second detection terminal remain in a conductive state. When the abutting arm (323) is in the second disengaging position, the abutting arm (323) separates from the second power connection terminal (22).

5. The detection device according to claim 4, characterized in that, The abutting structure (32) further includes a movable retainer (324), which is capable of abutting against the lower surface of the abutting arm (323) so that the abutting arm (323) is held in the second abutting position. The retainer (324) moves and separates from the abutting arm (323) so that the abutting arm (323) switches from the second abutting position to the second disengaged position under the action of gravity.

6. The detection device according to any one of claims 2 to 5, characterized in that, The support structure (31) includes a nested outer sleeve (311) and a slide rod (312), one of the outer sleeve (311) and the slide rod (312) being connected to the abutment structure (32), and the other of the outer sleeve (311) and the slide rod (312) being connected to the main body (10).

7. The detection device according to claim 6, characterized in that, The positioning component (40) includes an operating lever (41) and a pin (42). The operating lever (41) is connected to the outer sleeve (311). The slide rod (312) is provided with a plurality of insertion holes spaced apart along the axial direction of the slide rod (312). The pin (42) is movably disposed on the operating lever (41). When the positioning component (40) is in the positioning position, the pin (42) is engaged with one of the insertion holes so that the outer sleeve (311) and the slide rod (312) remain in the same position. When the positioning component (40) is in the unlocking position, the pin (42) is separated from the insertion hole so that the outer sleeve (311) and the slide rod (312) can slide relative to each other.

8. The detection device according to claim 7, characterized in that, The positioning assembly (40) also includes a rotating cylinder (43) sleeved on the operating rod (41). The rotating cylinder (43) is connected to the pin (42) by a bearing. The rotating cylinder (43) is threadedly connected to the operating rod (41). When the rotating cylinder (43) rotates, it drives the pin (42) to move.

9. The detection device according to any one of claims 1 to 5, characterized in that, The detection device further includes a strap (51) and an adjustable structure (52). A receiving space (6) for accommodating an arm is formed between the strap (51) and the main body (10). The first end of the strap (51) is connected to the main body (10). The main body (10) has an opening groove (11). The adjustable structure (52) is telescopically disposed in the opening groove (11) and connected to the second end of the strap (51). The size of the receiving space (6) can be adjusted when the adjustable structure (52) is telescopically extended or retracted.

10. The detection device according to claim 9, characterized in that, The detection device further includes a positioning screw (53), and the length adjustment structure (52) includes a connecting block (521). The connecting block (521) is provided with a sliding groove extending along the extension direction of the length adjustment structure (52). The sliding groove includes a shallow groove section and a deep groove section that are connected together. The deep groove section is located outside the shallow groove section. The positioning screw (53) is movably inserted into the body part (10). The positioning screw (53) has an operating end located outside the body part (10) and a mating end located in the opening groove (11). The mating end can mate with the shallow groove section or the deep groove section. When the mating end mates with the shallow groove section, the connecting block (521) can move. When the mating end mates with the deep groove section, the connecting block (521) remains in a fixed position.

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