Polarity fool-proof structure of adapter and track and track socket with polarity fool-proof structure
By setting asymmetric anti-stupid parts and mating parts on the guide chutes and guide plates of the track socket, the power consumption problem caused by the reverse adapter is solved, and effective polarity anti-stupid and power safety are achieved.
Patent Information
- Application Number
- CN202323572329.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-26
AI Technical Summary
When the adapter is inserted in reverse, the direction of the moving conductive sheet and the conductive strip does not correspond to the conductive strip, resulting in electricity consumption problems and lack of effective anti-stopping measures to ensure the safety of electricity consumption.
A polar anti-stupid structure for adapters and tracks is designed. By setting asymmetric anti-stupid parts and mating parts on the guide chutes and guide plates, it is ensured that the adapter can only be inserted correctly when inserted and prevents insertion and reverse.
Effectively prevent the adapter from being connected to the track when plugged in and reversed, ensure that both poles cannot be electrically in contact, ensure the safety of electricity use and avoid faults caused by misoperation.
Smart Images
Figure CN222282431U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of track sockets, and more particularly to a polarity foolproof structure between an adapter and a track and a track socket having the structure. Background Art
[0002] Track socket, also known as power track socket, mobile socket, is a new type of power socket product, mainly composed of two parts: adapter and power track. The power track (hereinafter referred to as track) can be installed on the wall or desktop, and the conductive strip in the track is electrically connected to the wall power line. The adapter has a guide plate (with a moving conductive sheet) and a socket. When using the track socket, insert the guide plate of the adapter into the track slot of the track so that the moving conductive sheet contacts the conductive strip in the track slot. Then, insert the plug of the appliance into the socket of the adapter, and the appliance can draw power from the adapter. The advantage of the track socket is that the adapter can be plugged in at any position of the track, so that the adapter can power appliances in multiple positions. However, in actual applications, since the adapter can be plugged in and out of the track slot in both directions, when the adapter is plugged in reverse, the direction of the moving conductive sheet in the adapter does not correspond to the direction of the conductive strip, and the polarity of the two does not match, which may cause power problems. Utility Model Content
[0003] The purpose of the present disclosure is to overcome the above-mentioned and / or other problems in the prior art. It provides a polarity fool-proof structure between an adapter and a track and a track socket with the polarity fool-proof structure, which can prevent the two poles of the adapter from being connected to the track when the adapter is inserted reversely, so that both poles cannot be electrically contacted, thereby ensuring effective fool-proofing and electrical safety.
[0004] To achieve the above-mentioned purpose, the present disclosure provides a polarity fool-proofing structure of an adapter and a track, which is used for polarity fool-proofing when the guide plate of the adapter is inserted into the guide slot of the track, the guide slot is arranged at the front end face of the track, the adapter can be inserted into any position of the guide slot, the guide plate is arranged at the rear end face of the adapter for inserting into the guide slot to draw electricity, and the polarity fool-proofing structure is characterized in that it includes: an asymmetric first fool-proofing part and a second fool-proofing part arranged on both sides of the guide slot; and an asymmetric first mating part and a second mating part arranged on both sides of the guide plate, the first mating part cooperates with the first fool-proofing part, and the second mating part cooperates with the second fool-proofing part.
[0005] In some embodiments, in the polarity fool-proofing structure, the distance between the first fool-proofing member and the guide slot is larger than the distance between the second fool-proofing member and the guide slot.
[0006] In some embodiments, in the polarity fool-proofing structure, the first fool-proofing component and the second fool-proofing component are rectangular grooves.
[0007] In some embodiments, in the polarity anti-idiot structure, the first mating piece is arranged on the rear end face of the adapter and is located below the guide plate, the second mating piece is arranged on the rear end face of the adapter and is located above the guide plate, the distance between the first mating piece and the guide plate is equal to the distance between the first anti-idiot piece and the guide groove, and the distance between the second mating piece and the guide plate is equal to the distance between the second anti-idiot piece and the guide groove.
[0008] In some embodiments, in the polarity anti-foolproofing structure, the distance between the first anti-foolproofing part and the guide groove is not less than the distance between the second anti-foolproofing part and the guide groove plus the width of the second anti-foolproofing part, and the width of the second anti-foolproofing part is the width of the second anti-foolproofing part in a direction perpendicular to the extension direction of the second anti-foolproofing part.
[0009] The present disclosure also provides a track socket, which comprises: an adapter; a track; and any one of the polarity foolproof structures described above.
[0010] According to the polarity fool-proofing structure of an adapter and a track and the track socket with the polarity fool-proofing structure disclosed in the present invention, the two poles of the adapter can be prevented from being connected to the track when the adapter is inserted reversely, so that both poles cannot be electrically contacted, thereby ensuring effective fool-proofing and electrical safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the present disclosure and do not constitute a limitation of the present disclosure. In the accompanying drawings:
[0012] Figure 1 This is a schematic diagram of the structure of a polarity foolproof structure of an adapter and a track in Embodiment 1 of the present disclosure;
[0013] Figure 2 It is a cross-sectional view of an adapter of a polarity foolproof structure between an adapter and a track according to Embodiment 1 of the present disclosure when the adapter is inserted forward;
[0014] Figure 3 It is a cross-sectional view of an adapter with a polarity foolproof structure between an adapter and a track according to embodiment 1 of the present disclosure when the adapter is inserted in the reverse direction.
[0015] Figure 4 It is a structural diagram of a polarity foolproof structure of an adapter and a track according to Embodiment 2 of the present disclosure. DETAILED DESCRIPTION
[0016] The specific implementation methods of the present disclosure will be described below. It should be noted that in the specific description of these implementation methods, in order to provide a concise description, it is impossible for this specification to provide a detailed description of all the features of the actual implementation methods. It should be understood that in the actual implementation of any implementation method, just as in the process of any engineering project or design project, in order to achieve the specific goals of the developer and to meet system-related or business-related restrictions, various specific decisions are often made, and this will also change from one implementation method to another. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the content disclosed by the present disclosure, some changes in design, manufacturing or production based on the technical content disclosed in the present disclosure are just conventional technical means, and should not be understood as insufficient content of the present disclosure.
[0017] Unless otherwise defined, the technical terms or scientific terms used in the claims and the specification shall have the usual meanings understood by persons with ordinary skills in the technical field to which the present disclosure belongs. The words "first", "second" and similar words used in the patent application specification and the claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "one" do not indicate a quantitative limitation, but indicate the existence of at least one. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalent elements, and do not exclude other elements or objects. Words such as "connect", "couple" or "connected" and similar words are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.
[0018] In the present disclosure, unless otherwise specified, all embodiments and preferred embodiments mentioned herein can be combined with each other to form a new technical solution. In the present disclosure, unless otherwise specified, all technical features and preferred features mentioned herein can be combined with each other to form a new technical solution.
[0019] In the description of the embodiments of the present disclosure, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0020] An embodiment of the present disclosure provides a polarity fool-proofing structure for an adapter and a track, which is used for polarity fool-proofing when the guide plate of the adapter is inserted into the guide slot of the track, the guide slot is arranged on the front end face of the track, the adapter can be inserted into any position of the guide slot, the guide plate is arranged on the rear end face of the adapter for being inserted into the guide slot to draw electricity, and the polarity fool-proofing structure is characterized in that it includes: an asymmetric first fool-proofing part and a second fool-proofing part arranged on both sides of the guide slot; and an asymmetric first mating part and a second mating part arranged on both sides of the guide plate, the first mating part cooperates with the first fool-proofing part, and the second mating part cooperates with the second fool-proofing part.
[0021] According to an embodiment of the present disclosure, a polarity foolproof structure between an adapter and a track can prevent the two poles of the adapter from being connected to the track when the adapter is inserted reversely, so that both poles cannot be electrically contacted, thereby ensuring effective foolproofing and electrical safety.
[0022] A polarity foolproof structure of an adapter and a track provided according to an embodiment of the present disclosure is described in detail below with reference to the accompanying drawings.
[0023] [Example 1]
[0024] Reference Figure 1 , which exemplarily shows the polarity foolproof structure of the adapter 1 and the track 2 involved in Embodiment 1 of the present disclosure. A guide groove 21 is provided on the front end surface of the track 2 along the direction of the track 2. A first foolproof member 22 and a second foolproof member 23 are also provided on the front end surface of the track 2. The first foolproof member 22 is parallel to the guide groove 21 and is located below the guide groove 21. The second foolproof member 23 is parallel to the guide groove 21 and is located above the guide groove 21.
[0025] The distance between the first foolproof member 22 and the guide slot 21 is different from the distance between the second foolproof member 23 and the guide slot 21. Figure 1 As shown, in the polarity foolproof structure of the adapter and the track of Example 1, the spacing between the first foolproof member 22 and the guide slot 21 is larger than the spacing between the second foolproof member 23 and the guide slot 21. The guide slot 21, the first foolproof member 22 and the second foolproof member 23 shown here all adopt a rectangular groove structure, but are not limited thereto. As long as the adapter 1 can be inserted into any position of the guide slot 21, the shapes of these slots or foolproof members are not particularly limited.
[0026] A guide plate 13 is provided on the rear end face of the adapter 1, and a movable conductive sheet (not shown) and the like are provided in the guide plate 13. The guide plate 13 cooperates with the guide slot 21, and the movable conductive sheet of the guide plate 13 contacts the conductive strip (not shown) of the track 1 by inserting the guide plate 13 into the guide slot 21, so that power can be supplied to the adapter 1.
[0027] The first fitting member 11 and the second fitting member 12 are also provided on the rear end face of the adapter 1. In order to allow the first fitting member 11 to be inserted into the first foolproof member 22 when the adapter 1 is forwardly inserted into the guide slot 21 of the track 2, and the second fitting member 12 to be inserted into the second foolproof member 23 when the adapter 1 is forwardly inserted into the guide slot 21 of the track 2, the first fitting member 11 is located below the guide plate 13, and the first fitting member 11 is aligned with the position of the first foolproof member 22, that is, the spacing between the first fitting member 11 and the guide plate 13 is equal to the spacing between the first foolproof member 22 and the guide slot 21. Similarly, the second fitting member 12 is located above the guide plate 13, and the second fitting member 12 is aligned with the position of the foolproof member 23, that is, the spacing between the second fitting member 12 and the guide plate 13 is equal to the spacing between the second foolproof member 23 and the guide slot 21. In fact, during the machining process, some margin is provided to ensure that each mating part can be inserted into the corresponding foolproof part while the adapter 1 is positively inserted into the guide groove 21. For convenience, this margin is ignored in the present disclosure.
[0028] In addition, the first matching piece 11 matches with the first foolproof piece 22, and the second matching piece 12 matches with the second foolproof piece 23. Since the first foolproof piece 22 and the second foolproof piece 23 shown in the figure are rectangular grooves, the first matching piece 11 and the second matching piece 12 can be rectangular protrusions with the same protruding length as the depth of the corresponding foolproof piece.
[0029] Preferably, the depth of the guide slot 21 is greater than the depth of the first foolproofing piece 22 and the second foolproofing piece 23, and the protruding length of the first fitting piece 11 relative to the rear end face of the adapter 1 is less than the protruding length of the guide plate 13 relative to the rear end face of the adapter 1, and the protruding length of the second fitting piece 12 relative to the rear end face of the adapter 1 is less than the protruding length of the guide plate 13 relative to the rear end face of the adapter 1. Thus, it can achieve the foolproofing effect and the insertion will not make the user feel difficult, which is convenient to use.
[0030] Preferably, the spacing between the first foolproof member 22 and the guide slot 21 is not less than the spacing between the second foolproof member 23 and the guide slot 21 plus the width of the second foolproof member 23. Here, the width of the second foolproof member 23 refers to the width of the second foolproof member 23 in a direction perpendicular to the extension direction of the second foolproof member 23. In Example 1, the spacing between the first foolproof member 22 and the guide slot 21 is relatively large, set to d2; the spacing between the second foolproof member 23 and the guide slot 21 is relatively small, set to d1; the width of the second foolproof member 23 is set to d3, and the following relationship is obtained.
[0031] d2≥d1+d3.
[0032] Therefore, even if the adapter 1 is inserted upside down, it can be ensured that the contact surface between the end faces of each mating part and the track 2 is intact when the guide plate 13 is partially inserted, so it is not easy to be damaged. The details will be described later.
[0033] In actual application, the adapter must be inserted into the guide slot of the track in the correct direction (that is, the socket on the adapter is in the correct direction) to be powered on correctly. Figure 2 , which shows a cross-sectional view of the adapter of the embodiment 1 of the present disclosure and the adapter of the track polarity foolproof structure when it is correctly inserted. Figure 2 In the embodiment, since the distance between the first mating piece 11 and the guide plate 13 is equal to the distance d2 between the first anti-idiot piece 22 and the guide slot 21, and the distance between the second mating piece 12 and the guide plate 13 is equal to the distance d1 between the second anti-idiot piece 23 and the guide slot 21, and the first mating piece 11 is matched with the first anti-idiot piece 22 in shape, and the second mating piece 12 is matched with the second anti-idiot piece 23 in shape, the first mating piece 11, the second mating piece 12, and the guide plate 13 can be inserted into the first anti-idiot piece 22, the second anti-idiot piece 23, and the guide slot 21 respectively at the same time, so that the guide plate 13 is fully inserted and can be used normally.
[0034] Figure 3 A cross-sectional view showing the polarity foolproof structure of the adapter and the track of the first embodiment of the present disclosure when the adapter is inserted in the reverse direction. Figure 3 In the figure, since the spacing d2 between the first matching piece 11 and the guide plate 13 is different from the spacing d1 between the second foolproof piece 23 and the guide slot 21, as shown in the figure, d2>d1, and the spacing d1 between the second matching piece 12 and the guide plate 13 is also different from the spacing d2 between the first foolproof piece 22 and the guide slot 21, the matching pieces 11 and 12 cannot be inserted into the foolproof pieces 22 and 23, and will abut against the surface of the track 2, so that the guide plate 13 cannot be fully inserted, thereby preventing the adapter 1 from being plugged in the wrong direction and causing the adapter 1 to be unable to be powered on normally, effectively preventing foolproofing. At the same time, since the spacing d2 between the first foolproof piece 22 and the guide slot 21 is not less than the spacing d1 between the second foolproof piece 23 and the guide slot 21 plus the width d3 of the second foolproof piece 23, that is, d2≥d1+d3, the contact surfaces of the first matching piece 11 and the second matching piece 12 with the track 2 are all complete surfaces, and the end faces of the matching pieces or the contact surfaces of the track will not be worn due to uneven contact, resulting in unevenness, thereby ensuring durability.
[0035] In summary, according to the polarity fool-proofing structure of the adapter and the track of Example 1, by setting two fool-proofing parts and two corresponding matching parts, when the adapter is inserted into the guide slot of the track in the forward direction, each matching part and the guide plate can be correspondingly inserted into each fool-proofing part and the guide slot, so that the guide plate can be fully inserted and used normally; when the adapter is inserted into the guide slot of the track in the reverse direction, each matching part abuts against the surface of the track, the guide plate cannot be fully inserted, and the movable conductive sheet on the guide plate cannot be normally unfolded to electrically contact the conductive strip in the guide slot, thereby reminding the user that the adapter may be inserted in reverse, thereby avoiding malfunctions caused by misoperation. Therefore, the polarity fool-proofing structure can ensure effective fool-proofing and electrical safety.
[0036] [Example 2]
[0037] Reference Figure 4 , which exemplarily shows the polarity foolproof structure of the adapter and the track involved in Example 2 of the present disclosure. As in Example 1, a guide groove 41 is provided on the front end surface of the track 4 along the direction of the track 4. A first foolproof member 42 and a second foolproof member 43 are also provided on the front end surface of the track 4. The first foolproof member 42 is parallel to the guide groove 41 and is located below the guide groove 41. The second foolproof member 43 is parallel to the guide groove 41 and is located above the guide groove 41.
[0038] The distance between the first foolproof member 42 and the guide slot 41 is different from the distance between the second foolproof member 43 and the guide slot 41. Figure 4 As shown, in the polarity foolproof structure of the adapter 3 and the track 4 of Example 2, unlike Example 1, the spacing between the first foolproof member 42 and the guide slot 41 is smaller than the spacing between the second foolproof member 43 and the guide slot 41. The guide slot 41, the first foolproof member 42 and the second foolproof member 43 shown here all adopt a rectangular groove structure, but are not limited thereto, as long as the adapter 3 can be inserted into any position of the guide slot 41, the shapes of these slots or grooves are not particularly limited.
[0039] A guide plate 13 is provided on the rear end face of the adapter, and a movable conductive sheet (not shown) and the like are provided in the guide plate 13. The guide plate 13 matches the shape of the guide slot 41, and when the guide plate 13 is inserted into the guide slot 41, the movable conductive sheet of the guide plate 13 contacts the conductive strip (not shown) of the track 4, thereby supplying power to the adapter 3.
[0040] The first fitting member 31 and the second fitting member 32 are provided on the rear end face of the adapter 3. In order to allow the first fitting member 31 to be inserted into the first foolproof member 42 when the adapter is forwardly inserted into the guide slot 41 of the track 4, and the second fitting member 32 to be inserted into the second foolproof member 43 when the adapter is forwardly inserted into the guide slot 41 of the track, the first fitting member 31 is located below the guide plate 13, and the first fitting member 31 is aligned with the position of the first foolproof member 42, that is, the distance between the first fitting member 31 and the guide plate 13 is equal to the distance d2 between the first foolproof member 42 and the guide slot 41. Similarly, the second fitting member 32 is located above the guide plate 13, and the second fitting member 32 is aligned with the position of the second foolproof member 43, that is, the distance between the second fitting member 32 and the guide plate 13 is equal to the distance between the second foolproof member 43 and the guide slot 41. In fact, during the machining process, some margin is provided to ensure that each mating part can be inserted into the corresponding foolproof part while the adapter 3 is positively inserted into the guide groove 41. For convenience, this margin is ignored in the present disclosure.
[0041] In addition, the first matching piece 31 matches with the first foolproof piece 42, and the second matching piece 32 matches with the second foolproof piece 43. Since the first foolproof piece 42 and the second foolproof piece 43 shown in the figure are rectangular grooves, the first matching piece 31 and the second matching piece 32 can be rectangular protrusions with the same protruding length as the corresponding groove depth.
[0042] Preferably, the depth of the guide slot 41 is greater than the depth of the first foolproof member 42 and the second foolproof member 43, and the protruding length of the first matching member 31 is less than the protruding length of the guide plate 13, and the protruding length of the second matching member 32 is less than the protruding length of the guide plate 13. Thus, it can achieve the foolproof effect and the insertion will not make the user feel difficult, which is convenient to use.
[0043] Preferably, the spacing between the second foolproof member 43 and the guide slot 41 is not less than the spacing between the first foolproof member 42 and the guide slot 41 plus the width of the first foolproof member 42. Here, the width of the first foolproof member 42 refers to the width of the first foolproof member 42 in a direction perpendicular to the extension direction of the first foolproof member 42. In Example 2, the spacing between the second foolproof member 43 and the guide slot 41 is relatively large, set to d2; the spacing between the first foolproof member 42 and the guide slot 41 is relatively small, set to d1; the width of the first foolproof member 42 is set to d3, and the following relationship is obtained.
[0044] d2≥d1+d3.
[0045] Therefore, even when the adapter 3 is inserted upside down, it can be ensured that the contact surfaces of the matching parts and the track 4 are intact when the guide plate 13 is partially inserted, so that they are not easily damaged. The details will be described later.
[0046] In actual application, the adapter must be inserted into the guide slot of the track in the forward direction (i.e., the direction of the jack on the adapter is correct) to be powered on correctly. For the track socket with the polarity foolproof structure of the adapter and the track described in Example 2, as in Example 1, when the adapter 3 is inserted in the forward direction, the mating parts 31, 32 and the guide plate 13 are correspondingly inserted into the foolproof parts 42, 43 and the guide slot 41; when the adapter 3 is inserted in the reverse direction, the mating parts 31, 32 cannot be inserted into the foolproof parts 42, 43, and will abut against the surface of the track 4, so that the guide plate 13 cannot be fully inserted, thereby preventing the adapter 3 from being plugged in the wrong way and causing a failure to power on normally. At the same time, since the contact surfaces of the first mating part 31 and the second mating part 32 with the track 4 are both complete surfaces, the contact surfaces of the mating parts or the track will not be worn due to uneven contact, resulting in unevenness, thereby ensuring durability.
[0047] In summary, according to the polarity fool-proofing structure of the adapter and the track of Example 2, by setting two fool-proofing parts and two corresponding matching parts, when the adapter is inserted into the guide slot of the track in the forward direction, each matching part and the guide plate can be correspondingly inserted into each fool-proofing part and the guide slot, so that the guide plate can be fully inserted and used normally; when the adapter is inserted into the guide slot of the track in the reverse direction, each matching part abuts against the surface of the track, the guide plate cannot be fully inserted, and the movable conductive sheet on the guide plate cannot be normally unfolded to electrically contact the conductive strip in the guide slot, thereby reminding the user that the adapter may be inserted in reverse, thereby avoiding malfunctions caused by misoperation. Therefore, the polarity fool-proofing structure can ensure effective fool-proofing and electrical safety.
[0048] It should be noted that in Embodiment 1 and Embodiment 2, each matching piece is a convex block with a protruding length equal to the depth of the corresponding foolproof piece, but the invention is not limited thereto. The length of each matching piece may also be less than the depth of the corresponding foolproof piece, as long as it is ensured that when each matching piece is inserted into each foolproof piece correspondingly, it does not affect the guide plate from being completely inserted into the guide slot.
[0049] It should be understood that the above description is illustrative and not restrictive. For example, the above embodiments (and / or their various aspects) can be used in combination with each other. In addition, without departing from the scope of the present disclosure, many modifications can be made to adapt specific conditions or materials to the teachings of the various embodiments of the present disclosure. Although the size and type of the material described herein are used to define the parameters of the various embodiments of the present disclosure, the various embodiments are not meant to be restrictive, but exemplary embodiments. In reading the above description, many other embodiments are obvious to those skilled in the art. Therefore, the scope of the various embodiments of the present disclosure should be determined with reference to the attached claims, and the full range of equivalent forms claimed by these claims.
Claims
1. A polarity foolproof structure of an adapter and a track, used for preventing polarity foolproof when the guide plate of the adapter is inserted into the guide slot of the track, the guide slot is arranged on the front end face of the track, the adapter can be inserted into any position of the guide slot, the guide plate is arranged on the rear end face of the adapter for inserting into the guide slot to obtain power, and the polarity foolproof structure is characterized in that it includes: Asymmetric first foolproof member and second foolproof member disposed on both sides of the guide slot; as well as an asymmetric first matching piece and a second matching piece disposed on both sides of the guide plate, The first matching piece matches with the first foolproof piece, and the second matching piece matches with the second foolproof piece.
2. The polarity foolproof structure of the adapter and the track as claimed in claim 1, characterized in that: The distance between the first foolproofing member and the guide slot is larger than the distance between the second foolproofing member and the guide slot.
3. The polarity foolproof structure of the adapter and the track as claimed in claim 1, characterized in that: The first foolproof part and the second foolproof part are rectangular grooves.
4. The polarity foolproof structure of the adapter and the track according to any one of claims 1 to 3, characterized in that: The first mating piece is located below the guide plate, the second mating piece is located above the guide plate, the distance between the first mating piece and the guide plate is equal to the distance between the first anti-foolproof piece and the guide groove, and the distance between the second mating piece and the guide plate is equal to the distance between the second anti-foolproof piece and the guide groove.
5. The polarity foolproof structure of the adapter and the track as claimed in claim 2, characterized in that: The distance between the first anti-foolproofing part and the guide slot is not less than the distance between the second anti-foolproofing part and the guide slot plus the width of the second anti-foolproofing part, and the width of the second anti-foolproofing part is the width of the second anti-foolproofing part in a direction perpendicular to the extension direction of the second anti-foolproofing part.
6. A track socket, characterized in that: include: adapter; track; And a polarity foolproof structure of the adapter and the track as claimed in any one of claims 1 to 5.