DIN rail socket

Abstract

The present invention relates to a guide rail power strip, comprising a guide rail module and a socket module. The guide rail module includes a rail, a power supply circuit, and a control box. The socket module includes a base, a displacement mechanism, an electrical connection mechanism for electrically connecting to a plug, and three pins corresponding to respective conductive strips. The rail is provided with two strip slots along its length, wherein two conductive strips are installed on either side of one of the strip slots relative to the rail length, and another conductive strip is installed on one side of the other strip slot relative to the rail length. The base is provided with two plug-in portions that mate with each of the strip slots. The displacement mechanism drives each pin to move relative to the base, enabling each pin to have a stored state in which it is stored in the plug-in portion located within the same strip slot, and a deployed state in which it is moved outside the plug-in portion and abuts against the corresponding conductive strip. By adopting the above solution, the present invention provides a guide rail power strip that reduces processing difficulty, increases device strength, and improves electrical performance.

Description

Technical Field

[0001] The present invention relates to the field of socket strips, and in particular to a guide rail socket. Background Art

[0002] A power strip is a multi-socket outlet that can connect to more than one power plug, saving both space and wiring. With the development of power strips, DIN rail power strips have emerged. Users can install any number of socket modules with different functions on the DIN rail module to meet their needs, thus meeting different user requirements.

[0003] The guide rail socket strip includes a guide rail module and a socket module. The guide rail module includes a rail for adjusting the position of multiple socket modules, a power supply circuit located in the rail for powering each socket module, and a control box for controlling the power supply circuit. The rail is provided with a strip slot along the length direction. The power supply circuit includes three conductive strips, one of which is installed on one side of the strip slot along the length direction, and the other two conductive strips are installed on the other side of the strip slot along the length direction. The socket module includes a base, a displacement mechanism and three pins corresponding to each conductive strip. The base is provided with a plug-in part that is plugged into the strip slot. The displacement mechanism drives the three pins to move relative to the base and, when moving, enables the pins to have a storage state in the plug-in part and an expanded state outside the plug-in part. When the three pins are in the expanded state, each pin contacts the corresponding conductive strip to form an electrical connection.

[0004] The guide rail socket with the above structure has certain disadvantages because the spacing between the two conductive bars on the same side is too small, resulting in a small spacing between the two pins that conflict with them. On the one hand, the two pins extend from a position close to the displacement mechanism, resulting in a thinner wall between the two pins of the displacement mechanism, which reduces strength and increases manufacturing difficulty. On the other hand, it cannot meet the spacing requirements for high power output, resulting in a decrease in electrical performance. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide a guide rail socket strip that reduces processing difficulty, increases device strength, and improves electrical performance.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution: comprising a guide rail module and a socket module, the guide rail module comprising a rail for adjusting the positions of a plurality of socket modules, a power supply circuit located within the rail for supplying power to each socket module, and a control box for controlling the power supply circuit, the power supply circuit comprising three conductive strips, the socket module comprising a base, a displacement mechanism, an electrical connection mechanism for electrically connecting to a plug, and three pins corresponding to each conductive strip, the rail being provided with a strip slot along its length, characterized in that: the number of the strip slots is two, wherein two of the conductive strips are respectively installed on both sides of one of the strip slots relative to the length direction of the rail, and the other conductive strip is installed on one side of the other strip slot relative to the length direction of the rail, the base being provided with two plug-in portions respectively plugged into each of the strip slots, the displacement mechanism driving each pin to move relative to the base, and enabling each pin to have a storage state in which it is stored in the plug-in portion located in the same strip slot, and an extended state in which it moves outside the plug-in portion and abuts against the corresponding conductive strip.

[0007] By adopting the above technical solution, the number of strip slots is changed, and the three conductive strips are distributed in two strip slots, so that the three pins are distributed in two plug-in parts that are plugged into different strip slots, ensuring the spacing between adjacent pins, thereby reducing the processing difficulty, increasing the strength of the device, and improving the electrical performance. At the same time, the structure of the displacement mechanism is changed to achieve the ability to drive the pins distributed in the two plug-in parts to move synchronously, ensuring the convenience of operation.

[0008] The present invention is further configured as follows: the displacement mechanism includes a rotating shell, a driven shaft, a driving gear and a driven gear; the rotating shell cover is arranged on the base and rotates with the base; a mounting cavity is formed between the rotating shell and the base; there are two driven shafts and they are arranged corresponding to each plug-in part; the driven shaft is arranged along the depth direction of the track and rotates with the base; one end of the driven shaft is located in the mounting cavity as a linkage end and is used to install the driven gear; the other end is located in the plug-in part as a mounting end and is used to install the pin; when the driven shaft rotates, the pin swings to switch between a storage state and an expanded state; the driving gear is arranged in linkage with the rotating shell and rotates synchronously when the rotating shell rotates; the driving gear and each driven gear form a meshing linkage.

[0009] By adopting the above technical solution, the driving gear rotates relative to the base, driving the driven gears to rotate, thereby driving the driven shaft on which the driven gears are installed to rotate. Since the pins are installed on the driven shaft, they can swing when the driven shaft rotates. This structural displacement mechanism can drive the pins distributed on the two plug-in parts to rotate synchronously, and the transmission is through gear meshing, making the internal structure more compact and the swing more synchronous.

[0010] The present invention is further configured as follows: the electrical connection mechanism includes a terminal mounting frame and three connecting terminals corresponding to each pin, the rotating shell is provided with a socket for the plug to be inserted into and electrically connected to the connecting terminal, the terminal mounting frame is located in the mounting cavity and rotates synchronously with the rotating shell, the three connecting terminals are all installed on the terminal mounting frame, each of the connecting terminals has an inner contact electrically connected to the pin, each of the pins extends to the mounting cavity through the installed driven shaft and is provided with a contact at the extended position, when the displacement mechanism drives each pin to swing to the expanded state, the inner contact abuts against the contact to form an electrical connection between the connecting terminal and the pin, and when the displacement mechanism drives each pin to swing to the retracted state, the inner contact is separated from the contact.

[0011] By adopting the above technical solution and rationally utilizing the displacement mechanism, when the displacement mechanism drives each pin to swing to the storage state, the inner contact piece is separated from the contact point at the same time, thereby improving the disconnecting capacity of the socket and further improving the safety of the socket module.

[0012] The present invention is further configured as follows: a locking device is provided between the rotating shell and the base, the locking device includes a limit block and a locking block, the limit block is fixed to the base, the locking block moves radially along the rotating shell in the installation cavity and slides with the rotating shell, the locking block is provided with an operating part that passes through the rotating shell and is pressed by the user, the locking block is provided with a locking groove that is limitedly cooperated with the limit block when the pin is swung to the expanded state and prevents the rotating shell from rotating relative to the base, when the operating part is pressed by the user, the limit block disengages from the locking groove, cancels the limit cooperation between the two, and the rotating shell can rotate freely relative to the base, and the locking block is provided with an elastic member that restores the position of the locking groove and the limit cooperation between the limit block in the absence of external force.

[0013] By adopting the above technical solution and adding a locking device, the relative circumferential position of the rotating shell and the base is locked, so that after the pin is swung to the expanded state where it is electrically connected to the conductive member, the pin can be stably maintained in the conductive member, thereby ensuring the stability of the socket installation and electrical connection. The elasticity of the locking block can be achieved by the material or by combining with a spring.

[0014] The present invention is further configured as follows: the locking block is provided with an extrusion guide surface that is connected with the locking groove and abuts against the locking block, and the extrusion guide surface gradually approaches the inner side wall of the rotating shell in the relative rotation direction as it approaches the locking groove. When the rotating shell rotates relative to the base, the locking block is squeezed along the extrusion guide surface until it corresponds to the position of the locking groove, and the locking block is elastically reset to make the locking groove and the limit block cooperate in a limited manner.

[0015] By adopting the above technical solution, an extrusion guide surface is added, and the rotating shell is rotated to make the pin transition from the storage state to the deployment state, the locking block can be automatically snapped into the locking groove without pressing the operating part, thereby improving the convenience of operation.

[0016] The present invention is further configured as follows: the slot wall of the strip-shaped slot is provided with a corresponding accommodating cavity corresponding to each conductive strip; the conductive strip is a U-shaped component and the U-shaped opening faces the connecting position of the accommodating cavity and the strip-shaped slot; the U-shaped sides of the conductive strip are respectively bent inward to form a clamping protrusion located on the inner side of the conductive strip and a limiting recess located on the outer side of the conductive strip; the inner sides of the clamping protrusions on both sides constitute a clamping fit for the pin; the accommodating cavity is provided with a limiting protrusion extending into the limiting recess corresponding to the limiting recess to constitute a limiting fit that limits the conductive strip in the accommodating cavity.

[0017] By adopting the above technical solution, the clamping protrusions and limiting recesses formed by the inward bending of the two sides of the U-shape are rationally utilized. The clamping protrusions are used to clamp the pins, increasing the damping between the pins and the conductive strips, while the limiting recesses cooperate with the limiting protrusions of the accommodating cavity to limit the conductive strips, so that the conductive strips can be accurately and stably installed in the accommodating cavity.

[0018] The present invention is further configured such that a limit block for blocking the U-shaped end of the conductive strip is provided on the cavity wall of the accommodating cavity at a position closer to the connection position with the strip-shaped slot relative to the U-shaped end of the conductive strip.

[0019] By adopting the above technical solution, a limit block is added to prevent the conductive strip from escaping from the accommodating cavity, thereby further increasing the installation stability.

[0020] The present invention is further configured as follows: the track includes an outer shell and an inner rail installed in the outer shell and corresponding to each strip slot, the inner contour of the inner rail constitutes a strip slot and a accommodating cavity, the outer shell is provided with a mounting opening for the plug-in part of the socket module to pass through, the outer shell is provided with strip mounting blocks on both sides of the mounting opening along the length direction of the track, the strip mounting blocks are U-shaped and the U-shaped openings face the outside of the outer shell, the inner rail and the strip mounting blocks are provided with mounting bends corresponding to each other, the mounting bends bypass the U-shaped side edges of the strip mounting blocks and are inserted into the strip mounting blocks from the U-shaped openings.

[0021] By adopting the above technical solution, the U-shaped opening is combined with the installation bend to achieve multi-directional positioning of the inner rail relative to the outer shell during the process of inserting the inner rail into the outer shell, so that the inner rail can be installed in the outer shell quickly, accurately and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of a specific embodiment of the present invention;

[0023] Figure 2This is a schematic diagram of the assembly of the socket modules in a specific embodiment of the present invention;

[0024] Figure 3 for Figure 2 A magnified view of middle A;

[0025] Figure 4 A three-dimensional diagram of a track in a specific embodiment of the present invention;

[0026] Figure 5 An exploded view of a socket module in a specific embodiment of the present invention;

[0027] Figure 6 A three-dimensional diagram of a base in a specific embodiment of the present invention;

[0028] Figure 7 An exploded view of the displacement mechanism and the electrical connection mechanism in a specific embodiment of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the locking device in a specific embodiment of the present invention. DETAILED DESCRIPTION

[0030] The technical solutions of the present invention are described clearly and completely below with reference to the accompanying drawings. It should be understood that the embodiments described herein are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used to indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are used solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific manner. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] like Figure 1 — Figure 8As shown, the present invention discloses a guide rail socket strip, including a guide rail module 1 and a socket module 2. The guide rail module 1 includes a rail 11 for adjusting the position of multiple socket modules 2, a power supply circuit located in the rail 11 to supply power to each socket module 2, and a control box 12 for controlling the power supply circuit. The power supply circuit includes three conductive strips 13 and conductive sheets that electrically connect the three conductive strips 13 to the control box 12 respectively. An operating button 121 for controlling the on and off of the power supply circuit is provided above the control box 12. The control circuit inside the control box 12 is an existing circuit and is not described in detail. The socket module 2 includes a base 21, a displacement mechanism, an electrical connection mechanism for electrically connecting to a plug, and three pins 22 corresponding to each conductive strip 13 respectively. The rail 11 is provided with a strip slot 111 along the length direction. The number of the strip slots 111 is two, wherein the two conductive strips 13 are respectively installed in one of the strip slots 111 relative to the two ends of the length direction of the rail 11. On the other hand, another conductive bar 13 is installed on one side of the other strip slot 111 relative to the length direction of the track 11, and the base 21 is provided with two plug-in parts 211 respectively plugged into each strip slot 111. The displacement mechanism drives each pin 22 to rotate relative to the base 21, and enables each pin 22 to have a storage state in which it is stored in the plug-in part 211 located in the same strip slot and an expanded state in which it moves outside the plug-in part 211 and abuts against the corresponding conductive bar 13. The number of strip slots 111 is changed, so that three conductive bars 13 are distributed in two strip slots 111, so that the three pins 22 are distributed in two plug-in parts 211 plugged into different strip slots 111, ensuring the spacing between adjacent pins 22, thereby reducing processing difficulty, increasing device strength, and improving electrical performance. At the same time, the structure of the displacement mechanism is changed to achieve the ability to drive the pins 22 distributed in the two plug-in parts 211 to rotate synchronously, ensuring ease of operation.

[0033] The displacement mechanism includes a rotating shell 23, a driven shaft 212, a driving gear 213 and a driven gear 214. The rotating shell 23 is covered on the base 21 and rotates with the base 21. A mounting cavity 24 is formed between the rotating shell 23 and the base 21. There are two driven shafts 212 and they are arranged corresponding to each plug-in portion 211. The driven shaft 212 is arranged along the depth direction of the track 11 and rotates with the base 21. One end of the driven shaft 212 is located in the base 21 as a linkage end and is used to install the driven gear 214. The other end is located in the plug-in portion 211 as a mounting end and is used to install the pin 22. When the driven shaft 212 rotates, the pin 22 swings to switch between the storage state and the deployment state. The driving gear 213 is arranged in linkage with the rotating shell 23 and rotates synchronously when the rotating shell 23 rotates. The driving gear 213 is fixed to the terminal mounting frame 25 mentioned below to form a connection with the rotating shell 2 3, the driving gear 213 and each driven gear 214 form a meshing linkage, and when the driving gear 213 rotates relative to the base 21, it drives each driven gear 214 to rotate, thereby driving the driven shaft 212 on which the driven gear 214 is installed to rotate. Since the pin 22 is installed on the driven shaft 212, it can swing when the driven shaft 212 rotates. This structural displacement mechanism can drive the pins 22 distributed on the two plug-in parts 211 to rotate synchronously, and transmit the power through gear meshing, making the internal structure more compact and the swinging more synchronous. The rotating shell 23 is provided with a slide rail 233 around the base 21, and the base 21 is provided with a slider 216 embedded in the slide rail 233 and slidingly cooperating with the slide rail. The slide rail 233 and the slider 216 constitute the rotational cooperation between the rotating shell 23 and the base, and a limiting block 234 is provided in the slide rail 233 for limiting the sliding range of the slider 216.

[0034] The electrical connection mechanism includes a terminal mounting frame 25 and three connecting terminals 26 corresponding to each pin 22. The rotating housing 23 is provided with a socket 231 for the plug to be inserted and electrically connected to the connecting terminal. An anti-accidental touch mechanism 27 is provided between the terminal mounting frame 25 and the socket 231 of the rotating housing 23 to prevent accidental touch. The terminal mounting frame 25 is located in the mounting cavity 24 and rotates synchronously with the rotating housing 23. The three connecting terminals 26 are all installed on the terminal mounting frame 25. Each connecting terminal 26 has an inner contact piece 261 electrically connected to the pin 22. Each pin 22 extends to the mounting cavity 24 through the installed driven shaft 212 and is in the extended position. A contact 221 is provided. When the displacement mechanism drives each pin 22 to swing to the expanded state, the inner contact 261 abuts against the contact to form an electrical connection between the connection terminal 26 and the pin 22. When the displacement mechanism drives each pin 22 to swing to the stored state, the inner contact 261 is separated from the contact. By rationally utilizing the displacement mechanism, when the displacement mechanism drives each pin 22 to swing to the stored state, the inner contact 261 is separated from the contact at the same time, thereby improving the capacity of the socket and further improving the safety of the socket module 2. The connection terminal 26 also has a clip 262 electrically connected to the plug, or is electrically connected to the USB plug through a combination of a PCB board and a USB socket.

[0035] A locking device is provided between the rotating housing 23 and the base 21, and the locking device includes a limit block 215 and a locking block 232. The limit block 215 is fixed to the base 21, and the locking block 232 moves radially along the rotating housing 23 in the installation cavity and slides with the rotating housing. The locking block 232 is provided with an operating portion 2321 that passes through the rotating housing 23 and is pressed by the user. The locking block 232 is provided with a locking groove 2322 that cooperates with the limit block 215 when the pin 22 swings to the expanded state and prevents the rotating housing 23 from rotating relative to the base 21. When the operating portion 2321 is pressed by the user, the limit block 215 By disengaging from the locking groove 2322 and cancelling the limiting cooperation between the two, the rotating housing 23 can rotate freely relative to the base 21. The locking block 232 is provided with an elastic member for restoring the position of the locking groove 2322 and the limiting block 215 in the absence of external force. This elastic member is preferably compressed by the spring 2324 between the locking block 232 and the terminal mounting frame 25. An additional locking device is provided to lock the relative circumferential position of the rotating housing 23 and the base 21, so that after the pin 22 swings to the expanded state electrically connected to the conductive member, the pin 22 can be stably maintained in the conductive member, thereby ensuring the stability of the socket installation and electrical connection.

[0036] The locking block 232 is provided with an extrusion guide surface 2323 which is connected with the locking groove 2322 and abuts against the locking block 232. The extrusion guide surface 2323 gradually approaches the inner side wall of the rotating shell 23 relative to the rotation direction as it approaches the locking groove 2322. When the rotating shell 23 rotates relative to the base 21, the locking block 232 squeezes the locking block 232 along the extrusion guide surface 2323 until it corresponds to the position of the locking groove 2322. The locking block 232 elastically resets so that the locking groove 2322 is limited and matched with the limit block 215. The extrusion guide surface 2323 is added. When the rotating shell 23 is rotated to transform the pin 22 from the storage state to the deployment state, the locking block 232 can be automatically snapped into the locking groove 2322 without pressing the operating part 2321, thereby improving the convenience of operation.

[0037] The groove wall of the strip slot 111 is provided with a corresponding accommodating cavity 112 corresponding to each conductive strip 13. The conductive strip 13 is a U-shaped member and the U-shaped opening faces the connecting position of the accommodating cavity 112 and the strip slot 111. The U-shaped sides of the conductive strip 13 are bent inward to form a clamping protrusion 131 located on the inner side of the conductive strip 13 and a limiting recess 132 located on the outer side of the conductive strip 13. The inner sides of the clamping protrusions 131 on both sides constitute a clamping fit for the pin 22. The accommodating cavity 112 is provided with a corresponding limiting recess 132. The limiting protrusion 1121 extending into the limiting recess 132 constitutes a limiting fit that limits the conductive bar 13 in the accommodating cavity 112. The clamping protrusion 131 and the limiting recess 132 formed by the inward bending of the two sides of the U-shape are rationally utilized. The clamping protrusion 131 is used to clamp the pin 22 to increase the damping between the pin 22 and the conductive bar 13, and the limiting recess 132 cooperates with the limiting protrusion 1121 of the accommodating cavity 112 to ensure that the conductive bar 13 can be accurately and stably installed in the accommodating cavity 112.

[0038] A limit block 1122 is provided on the cavity wall of the accommodating cavity 112, which is closer to the connection position with the strip-shaped slot 111 relative to the U-shaped end of the conductive bar 13, to block the U-shaped end of the conductive bar 13. The limit block 1122 is added to prevent the conductive bar 13 from escaping from the accommodating cavity 112, further increasing the installation stability.

[0039] The track 11 includes a shell 113 and an inner rail 114 installed in the shell 113 and corresponding to each strip slot 111. The inner contour of the inner rail 114 constitutes the strip slot 111 and the accommodating cavity 112. The shell 113 is provided with a mounting opening 1131 for the plug-in portion 211 of the socket module 2 to pass through. The shell 113 is provided with strip mounting blocks 1132 on both sides of the mounting opening 1131 along the length direction of the track 11. The strip mounting blocks 1132 are U-shaped and the U-shaped opening faces On the outside of the outer shell 113, the inner rail 114 and the strip mounting block 1132 are provided with mounting bends 1141 correspondingly. The mounting bends 1141 bypass the U-shaped side of the strip mounting block 1132 and are inserted into the strip mounting block 1132 from the U-shaped opening. The U-shaped opening cooperates with the mounting bends 1141. During the process of the inner rail 114 being inserted into the outer shell 113, the multi-directional positioning of the inner rail 114 relative to the outer shell 113 is realized, so that the inner rail 114 can be quickly, accurately and stably installed in the outer shell 113.

[0040] When the socket module 2 is in use, the two plug-in parts 211 on the base 21 are aligned with the bar slot 111 and inserted, and the rotating shell 23 is rotated. Since the plug-in part 211 is limited by the bar slot 111, the base 21 remains different. During the rotation of the rotating shell 23, the driving gear 213 rotates synchronously with the rotating shell 23, thereby driving the driven gear 214 engaged with it to rotate. During the synchronous rotation of the driven gear 214 and the driven shaft, the inner contact piece 261 contacts the contact point 221, and the pin 22 contacts the conductive bar 13, thereby realizing the electrical connection between the power supply and the connection terminal 26. At the same time, since the pin 22 is stuck in the conductive bar 13, the socket module 2 is limited to the guide rail module 1 to achieve stable installation; when the socket module 2 needs to be removed, press the operating part 2321 of the locking block 232 so that the rotating shell 23 can rotate in the opposite direction relative to the base 21 until the pin 22 is received in the plug-in part 211, and the socket module 2 can be taken out from the bar slot 111.

Claims

1. A guide rail power strip, comprising a guide rail module and a socket module. The guide rail module comprises a track for adjusting the positions of the multiple socket modules, a power supply circuit located within the track for supplying power to each socket module, and a control box for controlling the power supply circuit. The power supply circuit comprises three conductive strips. The socket module comprises a base, a displacement mechanism, an electrical connection mechanism for electrically connecting to a plug, and three pins corresponding to each conductive strip. The track is provided with strip-shaped slots along its length. The invention is characterized in that: There are two strip-shaped slots, wherein the two conductive strips are respectively installed on both sides of one strip-shaped slot relative to the length direction of the track, and the other conductive strip is installed on one side of the other strip-shaped slot relative to the length direction of the track. The base is provided with two plug-in portions respectively plugged into each strip-shaped slot. The displacement mechanism drives each pin to move relative to the base, and enables each pin to have a storage state in which it is stored in the plug-in portion located in the same strip-shaped slot, and an extended state in which it moves outside the plug-in portion and abuts against the corresponding conductive strip. The displacement mechanism includes a rotating housing, a driven shaft, a driving gear and a driven gear. The rotating housing is covered by the base and rotates with the base. A mounting cavity is formed between the rotating housing and the base. There are two driven shafts, which are arranged corresponding to each plug-in portion. The driven shaft is arranged along the depth direction of the track and rotates with the base. One end of the driven shaft is located in the mounting cavity as a linkage end and is used to install the driven gear. The other end is located in the plug-in portion as a mounting end and is used to install the pin. When the driven shaft rotates, the pin swings to switch between the storage state and the deployment state. The driving gear is arranged in linkage with the rotating housing and rotates synchronously when the rotating housing rotates. The driving gear forms a meshing linkage with each driven gear. The slot wall of the strip-shaped slot is provided with a corresponding accommodating cavity corresponding to each conductive strip. The conductive strip is a U-shaped component and the U-shaped opening faces the connecting position of the accommodating cavity and the strip-shaped slot. The two sides of the U-shape of the conductive strip are respectively bent inward to form a clamping protrusion located on the inner side of the conductive strip and a limiting recess located on the outer side of the conductive strip. The inner sides of the clamping protrusions on both sides constitute a clamping fit for the pins, and the accommodating cavity is provided with a limiting protrusion extending into the limiting recess corresponding to the limiting recess to constitute a limiting fit that limits the conductive strip to the accommodating cavity.

2. The guide rail socket strip according to claim 1, characterized in that: The electrical connection mechanism includes a terminal mounting frame and three connecting terminals corresponding to each pin. The rotating shell is provided with a socket for the plug to be inserted and electrically connected to the connecting terminal. The terminal mounting frame is located in the mounting cavity and rotates synchronously with the rotating shell. The three connecting terminals are all installed on the terminal mounting frame. Each of the connecting terminals has an inner contact piece electrically connected to the pin. Each of the pins extends to the mounting cavity through the installed driven shaft and is provided with a contact point at the extended position. When the displacement mechanism drives each pin to swing to the expanded state, the inner contact piece abuts against the contact point to form an electrical connection between the connecting terminal and the pin.

3. The guide rail socket strip according to claim 1 or 2, characterized in that: A locking device is provided between the rotating shell and the base, and the locking device includes a limit block and a locking block, the limit block is fixed to the base, the locking block moves radially along the rotating shell in the installation cavity and slides with the rotating shell, the locking block is provided with an operating part that passes through the rotating shell and is pressed by the user, and the locking block is provided with a locking groove that cooperates with the limit block when the pin is swung to the expanded state and prevents the rotating shell from rotating relative to the base. When the operating part is pressed by the user, the limit block disengages from the locking groove, cancels the limit cooperation between the two, and the rotating shell can rotate freely relative to the base, and the locking block is provided with an elastic member that restores the position of the locking groove and the limit cooperation between the limit block when there is no external force.

4. The guide rail socket strip according to claim 3, characterized in that: The locking block is provided with an extrusion guide surface connected with the locking groove and abutting against the locking block. The extrusion guide surface gradually approaches the inner side wall of the rotating shell in the relative rotation direction as it approaches the locking groove. When the rotating shell rotates relative to the base, the locking block squeezes the locking block along the extrusion guide surface until it corresponds to the position of the locking groove. The locking block elastically resets to make the locking groove and the limit block cooperate in a limited manner.

5. The guide rail socket strip according to claim 1, characterized in that: The cavity wall of the accommodating cavity is provided with a limit block for blocking the U-shaped end of the conductive strip at a position closer to the connection position with the strip-shaped slot relative to the U-shaped end of the conductive strip.

6. The guide rail socket strip according to claim 1, characterized in that: The track includes an outer shell and an inner rail installed in the outer shell and corresponding to each strip slot. The inner contour of the inner rail constitutes a strip slot and a accommodating cavity. The outer shell is provided with a mounting opening for the plug-in part of the socket module to pass through. The outer shell is provided with strip mounting blocks on both sides of the mounting opening along the length direction of the track. The strip mounting blocks are U-shaped and the U-shaped openings face the outside of the outer shell. The inner rail and the strip mounting blocks are provided with mounting bends corresponding to each other. The mounting bends bypass the U-shaped side of the strip mounting block and are inserted into the strip mounting block from the U-shaped opening.

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