Adapter, track and track socket

Abstract

The present disclosure provides an adapter, a track and a track socket, belonging to the technical field of socket. The adapter comprises a socket body, a power taking body and a protective body; the socket body is fixedly connected with the power taking body, and a gap for accommodating a side wall of the track is formed between the socket body and the power taking body; the first shell wall of the power taking body is provided with a contact piece, and the first shell wall is any one of the two shell walls opposite to the socket body; the protective body is slidably connected with the power taking body, the protective body is located at the first shell wall, and the protective body can cover or expose the contact piece by sliding. When power taking is needed, the protective body can be slid in a direction away from the contact piece, so that the contact piece is exposed and contacts with a conductive strip in the track; when the adapter does not need to take power, the protective body can be slid in a direction towards the contact piece until the protective body covers the contact piece, thereby reducing the possibility of wear of the contact piece, and further improving the reliability and service life of the adapter.

Description

Technical Field

[0001] This disclosure relates to the field of socket technology, and more specifically to an adapter, a track, and a track socket. Background Technology

[0002] A track socket is a portable socket consisting of a track and an adapter, which can be fitted at different locations on the track to draw power.

[0003] A related technology provides an adapter comprising a fixed socket body and a power-receiving body, with a gap formed between the socket body and the power-receiving body to accommodate a housing wall of a track. The socket body has a socket for mating a plug. The power-receiving body has exposed contacts for extending into the interior of the track to draw power. When the adapter is assembled in the track, the contacts contact a conductive strip in the track to draw power from the track.

[0004] However, because the contacts are exposed, they are easily worn, which undoubtedly reduces the reliability and lifespan of the adapter. Summary of the Invention

[0005] This disclosure provides an adapter, a track, and a track socket, which can solve the technical problems existing in related technologies. The technical solutions of the adapter, track, and track socket are as follows:

[0006] In a first aspect, an adapter is provided, the adapter comprising a socket body, a power-supplying body, and a protective body;

[0007] The socket body is fixedly connected to the power receiving body, and a gap is formed between the socket body and the power receiving body to accommodate the shell wall of the track;

[0008] The power-collecting body has a contact piece at the first shell wall, and the first shell wall is any one of the two shell walls opposite to the socket body;

[0009] The protective body is slidably connected to the power-collecting body. The protective body is located on the first shell wall and can be slidably shielded or exposed by the contact piece.

[0010] In one possible implementation, the sliding direction of the protective body is parallel to the direction in which the power-taking body is inserted into the track;

[0011] During the insertion of the power-receiving element into the track, the protrusions of the track push the protective body to slide, thereby exposing the contact piece.

[0012] In one possible implementation, the protective body includes a protective door and a first elastic element;

[0013] The protective door is slidably connected to the power-collecting body, and the protective door is located on the first shell wall;

[0014] The first elastic element is located inside the power-collecting body, and one end of the first elastic element away from the contact piece abuts against the inner wall of the power-collecting body, while the other end abuts against the protective door. The first elastic element is in a compressed state.

[0015] In one possible implementation, there are multiple contact pieces, and the multiple contact pieces are distributed diagonally on the first shell wall;

[0016] The protective door near the end of the contact piece is in a multi-step shape, and the number of steps is the same as the number of contact pieces. The protective door can simultaneously block or expose the multiple contact pieces.

[0017] In one possible implementation, the power-collecting body includes a power-collecting housing, the contact piece, and a second elastic member;

[0018] The first shell wall of the power-collecting housing has an opening;

[0019] The contact piece is located in the opening;

[0020] The second elastic element is located inside the power-collecting housing, with one end abutting against the inner wall of the power-collecting housing and the other end abutting against the contact piece;

[0021] In the power-off state, the contact piece is blocked by the protective body; in the power-on state, the second elastic element drives the contact piece to extend out of the power-on housing.

[0022] In one possible implementation, the contact piece includes a first contact segment, a second contact segment, and a third contact segment connected in sequence, with the first contact segment opposite to the third contact segment;

[0023] The first contact segment is used to contact the conductive strip in the track, the connection portion between the first contact segment and the second contact segment is arc-shaped, and the connection portion is used to contact the end of the protective body;

[0024] The third contact segment abuts against the second elastic element.

[0025] In one possible implementation, the second elastic element is a spring, and the contact piece further includes a first mounting post;

[0026] One end of the first mounting post is connected to the third contact segment, and the other end extends into the interior of the second elastic member.

[0027] In one possible implementation, the protective body has a guide slope on the side facing the power-taking body;

[0028] The guide ramp is adjacent to the end of the protective body near the contact piece, and the distance between the guide ramp and the power-taking body gradually decreases along the direction away from the end.

[0029] In a second aspect, a track is provided for docking an adapter as described in any of the first aspects, the track comprising a track housing and a conductive strip;

[0030] The conductive strip is fixed to the inner side of the second shell wall of the track housing;

[0031] The inner side of the second shell wall has a raised strip that extends in the same direction as the conductive strip and is used to push the protective body of the adapter to slide.

[0032] Thirdly, a track socket is provided, the track socket comprising an adapter as described in any of the first aspects and a track as described in the second aspect.

[0033] The technical solution provided in this disclosure includes at least the following beneficial effects:

[0034] When the adapter provided in this disclosure needs to draw power, the control protector slides away from the contact piece, exposing the contact piece so that it can contact the conductive strip in the track and draw power from the conductive strip. When the adapter does not need to draw power, such as when it is pulled out of the track, the control protector can slide towards the contact piece until it blocks the contact piece, thus reducing the possibility of contact piece wear and improving the reliability and service life of the adapter.

[0035] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. In the drawings:

[0037] Figure 1 This is a schematic diagram of a track socket according to an embodiment of the present disclosure;

[0038] Figure 2 This is a schematic diagram of an adapter shown in an embodiment of this disclosure;

[0039] Figure 3 This is a schematic diagram illustrating an adapter insertion process according to an embodiment of this disclosure;

[0040] Figure 4 This is a schematic diagram illustrating an adapter insertion process according to an embodiment of this disclosure;

[0041] Figure 5 This is a schematic diagram of a protective body shown in an embodiment of this disclosure;

[0042] Figure 6 This is a schematic diagram of an adapter shown in an embodiment of this disclosure;

[0043] Figure 7 This is a schematic diagram of a protective door shown in an embodiment of this disclosure;

[0044] Figure 8 This is a schematic diagram of a power-taking element shown in an embodiment of this disclosure;

[0045] Figure 9 This is a schematic diagram illustrating a protective body that shields and exposes the contact piece according to an embodiment of this disclosure;

[0046] Figure 10 This is a schematic diagram of a contact piece and a second elastic member according to an embodiment of the present disclosure;

[0047] Figure 11 This is a schematic diagram of a track shown in an embodiment of this disclosure.

[0048] Legend

[0049] 1. Adapter;

[0050] 11. Socket body, 10mm gap;

[0051] 12. Power take-off body; 121. Power take-off housing; 121a. First housing wall; 120. Opening; 122. Contact piece; 1220. Connecting part; 1221. First contact piece; 1222. Second contact piece; 1223. Third contact piece; 1224. First mounting post; 123. Second elastic element; 124. Third mounting post;

[0052] 13. Protective body; 130. Guide ramp; 131. Protective door; 1311. Plate; 1312. Second mounting post; 1313. Limiting block; 132. First elastic element;

[0053] 2. Track;

[0054] 21. Track housing; 21a. Second shell wall; 211. Raised bar;

[0055] 22. Conductive strip.

[0056] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0058] like Figure 1 As shown, the track socket is a portable socket, including a track 1 and an adapter 2, which can be fitted at different positions on the track 1 to draw power.

[0059] The adapter and track provided in the embodiments of this disclosure will be described below:

[0060] This disclosure provides an adapter, such as... Figure 2 As shown, the adapter includes a socket body 11, a power-receiving body 12, and a protective body 13. The socket body 11 is fixedly connected to the power-receiving body 12, and a gap 10 is formed between the socket body 11 and the power-receiving body 12 to accommodate a track. The power-receiving body 12 has a contact piece 122 at a first shell wall 121a, which is either of the two shell walls opposite to the socket body 11. The protective body 13 is slidably connected to the power-receiving body 12, and is located on the first shell wall 121a, and can be slidably shielded from or exposed by the contact piece 122.

[0061] like Figure 2 As shown in the left half of the diagram, when the adapter provided in this embodiment of the present disclosure needs to draw power, the control protection body 13 slides away from the contact piece 122 so that the contact piece 122 is exposed, thereby allowing the contact piece 122 to contact the conductive strip in the track and draw power from the conductive strip.

[0062] like Figure 2 As shown in the right half of the diagram, when the adapter does not need power, such as when it is pulled out of the rail, the protective body 13 can be controlled to slide toward the contact piece 122 until it blocks the contact piece 122. This reduces the possibility of wear on the contact piece 122, thereby improving the reliability and service life of the adapter.

[0063] It should be noted that, Figure 2 The first shell wall 121a shown is the shell wall that is farther away from the socket body 11 among the two shell walls opposite to the socket body 11. However, in practical applications, the first shell wall 121a can also be the shell wall that is closer to the socket body 11 among the two shell walls opposite to the socket body 11. The accompanying drawings provided in this disclosure are only used as an example where the first shell wall 121a is the shell wall that is farther away from the socket body 11.

[0064] The following is an exemplary description of the various components of the adapter provided in the embodiments of this disclosure:

[0065] The socket body 11 is used for mating a plug. The socket body 11 includes a socket housing and a socket sleeve, the socket sleeve being fixed inside the socket housing and electrically connected to the contact piece 122. The portion of the socket housing corresponding to the socket sleeve has a socket hole for plug insertion. Additionally, the socket body 11 may also include a protective door assembly located inside the socket housing and blocking the socket hole.

[0066] The power-taking body 12 is used to extend into the interior of the track to draw power. The power-taking body 12 can also be called an insert or a hanging piece. The power-taking body 12 has a contact piece 122, which is used to contact the conductive strip in the track.

[0067] The protective body 13 is used to shield the contact piece 122, specifically, to shield the contact piece 122 in the power-off state, thereby reducing the possibility of wear on the contact piece 122. The protective body 13 is slidably connected to the power-taking body 12.

[0068] The protective body 13 will now be described in more detail as an example:

[0069] This disclosure does not limit the sliding direction of the protective body 13. In some examples, such as... Figure 2 As indicated by the arrow, the sliding direction of the protective body 13 is parallel to the direction in which the power-taking body 12 is inserted into the track.

[0070] like Figure 3 As shown, during the process of inserting the power take-off body 12 into the track, the protrusion 211 of the track pushes the protective body 13 to slide, so that the contact piece 122 is exposed.

[0071] The technical solutions provided in the embodiments of this disclosure, such as Figure 3 and Figure 4 As shown, the above design allows the protrusion 211 to automatically push the protective body 13 away from the contact piece 122 as the adapter is inserted into the track, thus exposing the contact piece 122. The user does not need to perform any additional actions to operate the protective body 13, making the operation quite simple.

[0072] Of course, the above is just one possible example. In practical applications, the protective body 13 and the power-taking body 12 can also be slidably connected in other directions, and the action of inserting the power-taking body 12 into the track and the action of sliding the protective body 13 can be two separate actions. For example, the user can first operate the protective body 13 to slide away from the contact piece 122, exposing the contact piece 122, and then insert the adapter into the track.

[0073] This disclosure does not limit the specific structure of the protective body 13. A possible implementation is provided below:

[0074] like Figure 5As shown, the protective body 13 includes a protective door 131 and a first elastic member 132. The protective door 131 is slidably connected to the power-taking body 12 and is located on the first shell wall 121a. The first elastic member 132 is located inside the power-taking body 12, with one end of the first elastic member 132 away from the contact piece 122 abutting against the inner wall of the power-taking body 12 and the other end abutting against the protective door 131. The first elastic member 132 is in a compressed state.

[0075] The first elastic element 132 can be a spring. There can be two first elastic elements 132, so that the force on the protective door 131 is more even.

[0076] The technical solution provided in this embodiment of the present disclosure, by setting a first elastic element 132, enables the protective body 13 to automatically cover the contact piece 122 when it is not subjected to external force, thereby eliminating the need for the user to manually operate the protective body 13 to cover the contact piece 122, reducing the possibility of the contact piece 122 being exposed due to the user forgetting to operate it.

[0077] Of course, the protective body 13 described above, including the protective door 131 and the first elastic element 132, is merely an example. In practical applications, the protective body 13 may also be configured to exclude the first elastic element 132. In this case, the user can actively operate the protective door 131 to cover or expose the contact piece 122. Furthermore, in this situation, when the protective door 131 covers the contact piece 122, the protective door 131 and the power-taking body 12 can simultaneously engage, ensuring the stability of the protective door 131.

[0078] This disclosure does not limit the specific form of the protective door 131. In some examples, such as Figure 6 As shown, there are multiple contact pieces 122, and the multiple contact pieces 122 are distributed diagonally in the first shell wall 121a. The protective door 131 near the end of the contact piece 122 is in a multi-level stepped shape, and the number of steps is the same as the number of contact pieces 122. The protective door 131 can simultaneously block or expose multiple contact pieces 122.

[0079] In some examples, such as Figure 6 As shown, there are three contact pieces 122, namely the L-pole contact piece, the N-pole contact piece, and the E-pole contact piece. Therefore, the number of steps on the end of the protective door 131 near the contact piece 122 is three.

[0080] In some other examples, there are two contacts 122, namely an L-pole contact and an N-pole contact, and the number of steps of the protective door 131 near the end of the contact 122 is two.

[0081] like Figure 7 As shown, the protective door 131 includes a plate 1311, a second mounting post 1312, and a limiting block 1313. There can be two second mounting posts 1312 and two limiting blocks 1313.

[0082] Two second mounting posts 1312 are fixed to the end of the plate 1311 away from the contact piece 122 and are arranged at intervals. The second mounting posts 1312 are used to extend into one end of the first elastic member 132, making the first elastic member 132 more stable. Alternatively, a mounting post can also be provided at the power receiving housing 121, which extends into the other end of the first elastic member 132.

[0083] Two limiting blocks 1313 are fixed on both sides of the plate 1311 to cooperate with the inner wall of the power supply housing 121 to prevent the protective door 131 from completely detaching from the power supply housing 121.

[0084] The specific structure of the power-taking body 12 will be described below by way of example:

[0085] In some examples, such as Figure 8 As shown, the power-collecting body 12 includes a power-collecting housing 121, a contact piece 122, and a second elastic member 123. The first shell wall 121a of the power-collecting housing 121 has an opening 120. The contact piece 122 is located in the opening 120. One end of the second elastic member 123 abuts against the power-collecting housing 121, and the other end abuts against the contact piece 122.

[0086] like Figure 9 As shown, in the power-off state, the contact piece 122 is blocked by the protective body 13. In the power-on state, the second elastic element 123 drives the contact piece 122 to extend out of the power-on housing 121.

[0087] When the adapter is inserted into the track, the protrusion 211 of the track pushes the protective body 13 away from the contact piece 122 until the protective body 13 no longer blocks the contact piece 122. Then, driven by the second elastic member 123, the contact piece 122 extends out of the power-collecting housing 21 and contacts the conductive strip in the track.

[0088] As the adapter is pulled out of the rail, the protective body 13 gradually moves toward the contact piece 122 as it moves away from the protrusion 211. When the protective body 13 contacts the contact piece 122, the protective body 13 drives the contact piece 122 to retract into the power-taking housing 121 against the elastic force of the second elastic member 123.

[0089] The technical solution provided in this embodiment of the present disclosure is that by setting the second elastic member 123 to be connected to the contact piece 122, the contact piece 122 can be retracted into the power-collecting housing 121 under the action of the protective body 13 in the power-off state, and in the power-collecting state, the second elastic member 123 can push the contact piece 122 out of the power-collecting housing 121.

[0090] Furthermore, under the push of the second elastic member 123, the contact piece 122 makes closer contact with the conductive strip of the track. Moreover, when the length of the contact piece 122 decreases due to wear, the second elastic member 123 can continue to extend and push the contact piece 122 into close contact with the conductive strip.

[0091] Furthermore, the longer travel of the contact piece 122 allows the conductive piece 22 to be better concealed within the track housing 21, resulting in higher safety for the track socket.

[0092] To facilitate the retraction of the protective body 13 driving the contact 122, in some examples, such as Figure 9 As shown, the protective body 13 has a guide slope 130 on the side facing the power receiving body 12. The guide slope 130 is adjacent to the end of the protective body 13 near the contact piece 122, and the distance between the guide slope 130 and the power receiving body 12 gradually decreases along the direction away from the end. The guide slope 130 is located on the protective door 131.

[0093] In some examples, such as Figure 9 As shown, the end face of the protective body 13 near the contact piece 122 transitions into an arc shape with the guide slope 130.

[0094] This disclosure does not limit the specific structure of the contact 122. In some examples, such as... Figure 10 As shown, the contact piece 122 includes a first contact segment 1221, a second contact segment 1222, and a third contact segment 1223 connected in sequence, with the first contact segment 1221 and the third contact segment 1223 facing each other. The first contact segment 1221 is used to contact the conductive strip in the track. The connection portion 1220 between the first contact segment 1221 and the second contact segment 1222 has an arc-shaped transition, and the connection portion 1220 is used to contact the end of the protective body 13. The third contact segment 1223 abuts against the second elastic member 123.

[0095] The technical solution provided in this disclosure provides that, by setting the connecting portion 1220 of the first contact piece 1221 and the second contact piece 1222 to have an arc-shaped transition, the protective body 13 can more smoothly push the contact piece 122 to retract when it comes into contact with the connecting portion 1220.

[0096] like Figure 10 As shown, the second elastic element 123 is a spring, and the contact piece 122 also includes a first mounting post 1224. One end of the first mounting post 1224 is connected to the third contact piece 1223, and the other end extends into the interior of the second elastic element 123.

[0097] The technical solution provided in this embodiment adds a first mounting post 1224 to the third contact segment 1223 and makes the first mounting post 1224 extend into the interior of the second elastic member 123, thereby making the second elastic member 123 more stable.

[0098] In some examples, to make the end of the second elastic element 123 that abuts against the power-collecting housing 121 more stable, such as Figure 9 As shown, the power-collecting housing 121 has a third mounting post 124 on the wall opposite to the first housing wall 121a, and the third mounting post 124 extends into the interior of the second elastic member 123.

[0099] It should be noted that the above-described power-receiving body 12, including the power-receiving housing 121, the contact piece 122, and the second elastic member 123, is merely an example. In practical applications, the power-receiving body 12 may only include the power-receiving housing 121 and the contact piece 122, with the contact piece 122 protruding from the power-receiving housing 121. Furthermore, in this case, the protective body 13 will not touch the contact piece 122 during sliding.

[0100] The following is an illustrative description of the entire working process of the adapter, based on the above content:

[0101] When power is needed from the adapter:

[0102] When the adapter is inserted into the track, before the protective door 131 contacts the protrusion 211 of the track, the protective door 131 blocks the contact piece 122 under the push of the first elastic member 132.

[0103] When the end of the protective door 131 contacts the protrusion 211 of the track, the adapter is continued to be inserted, and the protrusion 211 pushes the protective door 131 to slide away from the contact piece 122.

[0104] When the protective door 131 slides to the point where it no longer obstructs the contact piece 122, the contact piece 122 extends out of the power-collecting housing 21 and contacts the conductive strip in the track under the drive of the second elastic member 123.

[0105] When the adapter needs to be powered off:

[0106] When the adapter is pulled out of the track, the protective door 131 slides toward the contact piece 122 under the push of the first elastic element 132.

[0107] As the adapter is pulled out, the protective door 131 contacts the contact piece 122, and under the driving force provided by the first elastic element 132, the protective door 131 pushes the contact piece 122 to gradually retract against the elastic force of the second elastic element 123.

[0108] The protective door 131 continues to slide under the push of the first elastic member 132 until the first elastic member 132 is in the ultimate elongation state.

[0109] After the above process is completed, the adapter is not completely removed from the track. At this time, you can either completely remove the adapter from the track, or slide the adapter into the track to a suitable position and then insert the adapter into the track.

[0110] It should be further explained that, since the socket is fixed inside the socket housing, and the contact piece 122 can move relative to the power supply housing 121, the contact piece 122 can also move relative to the socket. Therefore, the electrical connection between the socket and the contact piece 122 can be achieved through a flexible jumper, which can extend and retract to accommodate the movement of the contact piece 122 relative to the socket.

[0111] This disclosure also provides a track, such as Figure 11 As shown, the track is used to connect to the aforementioned adapter. The track includes a track housing 21 and a conductive strip 22. The conductive strip 22 is fixed to the inner side of the second shell wall 21a of the track housing 21. The inner side of the second shell wall 21a has a protrusion 211, which extends in the same direction as the conductive strip 22. The protrusion 211 is used to push the protective body 13 of the adapter to slide away from the contact piece 122.

[0112] The track housing 21 is used to support and protect the conductive strip 22. The track housing 21 has an opening 20 that extends in the same direction as the conductive strip 22 for the insertion of the power take-off body 12 of the adapter 1.

[0113] like Figure 11 As shown, there can be three conductive strips 22, namely the L-polar conductive strip, the N-polar conductive strip, and the E-polar conductive strip, and the three conductive strips 22 are distributed sequentially along the direction of the adapter insertion track.

[0114] The protrusion 211 and the conductive strip 22 extend in the same direction, so that no matter where the adapter is inserted from on the track, the protrusion 211 can push the protective body 13 to slide away from the contact piece 122.

[0115] The protrusion 211 can be located between two conductive strips 22 away from the opening 20. The protrusion 211 is used to push the most protruding part of the end of the protective door 131.

[0116] This disclosure also provides a track socket, such as Figure 1 As shown, the track socket includes the aforementioned adapter 1 and the aforementioned track 2.

[0117] like Figure 3 and Figure 9 As shown in the left half, during the insertion of adapter 1 into track 2, when the protective door 131 is not in contact with the protrusion 211 of track 2, the protective door 131 blocks the contact piece 122 under the drive of the first elastic member 132. Subsequently, when the protective door 131 contacts the protrusion 211, the protective door 131 moves away from the contact piece 122 under the push of the protrusion 211, and the contact piece 122 gradually becomes exposed.

[0118] like Figure 4 and Figure 9 As shown in the right half, the contact piece 122 is no longer blocked by the protective door 131. Driven by the second elastic member 123, the contact piece 122 extends to the outside of the power-taking housing 121 and contacts the conductive strip 22 in the track 2, and the adapter 1 becomes energized.

[0119] The terminology used in the embodiments of this disclosure is for illustrative purposes only and is not intended to limit the scope of this disclosure. Unless otherwise defined, the technical or scientific terms used in the embodiments of this disclosure should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in the patent application specification and claims of this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” and similar terms mean that the elements or objects preceding “comprising” encompass the elements or objects listed following “comprising” and their equivalents, but do not exclude other elements or objects.

[0120] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. An adapter, characterized in that, The adapter comprises a socket body (11), a power taking body (12) and a protection body (13), the socket body (11) is fixedly connected with the power taking body (12), and a gap (10) for accommodating a shell wall of a track is formed between the socket body (11) and the power taking body (12); The power taking body (12) comprises a power taking shell (121), a contact piece (122) and a second elastic member (123), and the protection body (13) comprises a protection door (131) and a first elastic member (132); The power taking shell (121) is provided with an opening (120) at a first shell wall (121a) thereof, the contact piece (122) is located in the opening (120), one end of the second elastic member (123) abuts against an inner wall of the power taking shell (121), and the other end abuts against the contact piece (122), wherein the first shell wall (121a) is any one of two shell walls opposite to the socket body (11); The protection door (131) is slidably connected with the power taking shell (121) along a plug-in direction of the power taking body (12), the protection door (131) is located at the first shell wall (121a) and can cover or expose the contact piece (122) by sliding, and two ends of the first elastic member (132) abut against the inner wall of the power taking shell (121) and the protection door (131) respectively; During the process of inserting the power taking body (12) into a track, a convex strip (211) of the track pushes the protection door (131) to slide and compress the first elastic member (132), so that the contact piece (122) is exposed, and the second elastic member (123) drives the contact piece (122) to extend out of the opening (120); During the process of pulling the power taking body (12) out of the track, the first elastic member (132) drives the protection door (131) to push the contact piece (122) to retract and compress the second elastic member (123).

2. The adapter of claim 1, wherein, The contact piece (122) is a plurality of contact pieces, and the plurality of contact pieces are distributed in a diagonal line on the first shell wall (121a); An end portion of the protection door (131) close to the contact piece (122) is in a multi-stage stepped shape, and the number of steps is the same as the number of the contact pieces (122), and the protection door (131) can synchronously cover or expose the plurality of contact pieces (122).

3. The adapter of claim 1, wherein, The contact piece (122) comprises a first contact piece segment (1221), a second contact piece segment (1222) and a third contact piece segment (1223) connected in sequence, and the first contact piece segment (1221) is opposite to the third contact piece segment (1223); The first contact piece segment (1221) is used for contacting a conductive strip in the track, an arc-shaped transition is formed between the first contact piece segment (1221) and a connecting portion (1220) of the second contact piece segment (1222), and the connecting portion (1220) is used for contacting an end portion of the protection body (13); The third contact piece segment (1223) abuts against the second elastic member (123).

4. The adapter of claim 3, wherein, The second elastic member (123) is a spring, and the contact piece (122) further comprises a first mounting column (1224); One end of the first mounting column (1224) is connected with the third contact piece segment (1223), and the other end extends into the interior of the second elastic member (123).

5. The adapter of claim 1, wherein, The protective door (131) has a guide inclined surface (130) on the side facing the power receiver (12); The guide inclined surface (130) is adjacent to the end of the protective door (131) close to the contact piece (122), and the distance between the guide inclined surface (130) and the power receiver (12) gradually decreases along the direction away from the end.

6. A track, characterized in that The track is used for connecting the adapter of any one of claims 1-5, and the track comprises a track housing (21) and a conductive strip (22); The conductive strip (22) is fixed to the inner side of the second housing wall (21a) of the track housing (21); The inner side of the second housing wall (21a) has a convex strip (211), the convex strip (211) extends in the same direction as the conductive strip (22), and the convex strip (211) is used for pushing the protective body (13) of the adapter to slide.

7. The track of claim 6, wherein, The conductive strip (22) is three, and the three conductive strips (22) are sequentially distributed along the direction in which the adapter is inserted into the track; The convex strip (211) is arranged between two of the three conductive strips (22) away from the opening (20) of the track housing (21).

8. A track socket, characterized in that The track socket comprises the adapter (1) of any one of claims 1-5 and the track (2) of claim 6 or 7.

Images