A plug-in socket

Abstract

The invention provides a plug-in socket, including: a base module, a power connection module and a locking device; wherein the base module is connected to an external plug through a wire, a connection slot is provided on the base module, and a first conductive sheet is provided inside the connection slot; a connection plug and an electrical jack are provided on the power connection module, and the connection plug and the electrical jack are provided on different sides of the power connection module, and a second conductive sheet is provided on the connection plug. When installing, the connection plug is inserted into the connection slot, and the first conductive sheet and the second conductive sheet fit together, so that electricity is transmitted from the base module to the power connection module; the locking device is provided inside the connection slot, and is used to lock the connection plug after the plug-in is completed, so as to prevent the connection plug from rotating inside the connection slot. The invention provides a plug-in socket, which improves the actual use space and placement flexibility of the socket by means of module plug-in.

Description

Technical Field

[0001] The invention belongs to the field of electrical connection equipment, in particular to a splicing socket. Background Art

[0002] Sockets are common electrical connection devices in daily life, which can connect municipal power supply and multiple electrical appliances. In order to reduce the overall volume, existing multi-sockets usually integrate multiple groups of jacks on the same side of the power strip, which easily leads to insufficient actual use space for the jacks, and two adjacent groups of jacks cannot be inserted with larger plugs at the same time. In addition, existing sockets usually have a fixed shape, which is less flexible to use and cannot be changed according to different usage occasions. Therefore, it is necessary to reserve space for the sockets during use, which reduces the space utilization rate in the room. Summary of the invention

[0003] In view of this, the invention aims to provide a plug-in socket to achieve the purpose of increasing the actual usage space and placement flexibility of the socket.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A plug-in socket, comprising: a base module, a power connection module and a locking device;

[0006] The base module is connected to the external plug through a wire, a connection slot is provided on the base module, and a first conductive sheet is provided inside the connection slot;

[0007] The power connection module is provided with a connection plug and an electrical socket, and the connection plug and the electrical socket are arranged on different sides of the power connection module. The connection plug is provided with a second conductive sheet. When installing, the connection plug is inserted into the connection card slot, and the first conductive sheet and the second conductive sheet are fitted together, so that power is transmitted from the base module to the power connection module;

[0008] The locking device is arranged inside the connection slot and is used to lock the connection plug after the splicing is completed to prevent the connection plug from rotating inside the connection slot.

[0009] Furthermore, the connecting slot includes an insertion hole and a cylindrical rotating cavity, the rotating cavity is arranged inside the base module, the top surface of the rotating cavity is connected to the outside through the insertion hole, and the insertion hole coincides with the center line of the rotating cavity; a first conductive sheet and an embedding hole are provided on the bottom surface of the rotating cavity, and the embedding hole is used to accommodate a locking device.

[0010] Furthermore, the connecting plug includes a connecting block and a card-mounting piece, the card-mounting piece is connected to the power connection module through the connecting block, and the card-mounting piece is parallel to the side of the power connection module on which the connecting plug is provided, the second conductive piece is arranged at the center position of the card-mounting piece, and a locking hole is also provided on the card-mounting piece, and the locking hole is used to accommodate the locking device in the extended state.

[0011] Furthermore, there are at least three locking devices disposed inside the same connecting slot, and the locking devices are arranged in a ring shape with the first conductive sheet as the center.

[0012] Furthermore, the card-mounting sheet includes an arc-shaped retreat groove, which is arranged in the clockwise direction of the locking hole, one end of which is connected to the locking hole, and the other end is connected to the outside.

[0013] Furthermore, the connecting slot includes a protective sleeve, which is arranged outside the first conductive sheet and is perpendicular to the bottom surface of the rotating cavity; the connecting plug includes a protective groove, which is arranged outside the second conductive sheet and has a shape that matches the protective sleeve.

[0014] Furthermore, the locking device includes a tube shell, a top block, a spring, a rotating rod, a ferrule and a locking rod;

[0015] The top block is arranged inside the tube shell, the bottom surface of the top block is connected to the bottom surface of the tube shell through a spring, and a cylindrical protrusion is arranged on the top surface of the top block;

[0016] The rotating rod is placed inside the tube shell, and includes a center rod and a limiting tooth. A groove for accommodating the cylindrical protrusion is provided on the bottom surface of the center rod. The limiting tooth is arranged on the side wall of the rotating rod, and the tooth tip of the limiting tooth faces the top surface of the center rod.

[0017] The ferrule is placed inside the tube shell, and includes a ring seat, the top surface of the ring seat is flush with the top surface of the tube shell, and a ring-shaped combination tooth is provided on the bottom surface of the ring seat, and a long card slot is provided between two adjacent combination teeth; the combination tooth includes two adjacent tooth tip portions, and a tooth groove is provided between the two tooth tip portions, the tooth groove is used to fix the limiting tooth when the locking device is in a retracted state, the long card slot is used to accommodate the limiting tooth when the locking device is in an extended state, and the tooth tip portion is used to drive the rotating rod to rotate when the locking device is in a compressed state;

[0018] The lower end of the locking rod is placed inside the ferrule, a sliding bead is provided at the center of the top surface of the locking rod, and an annular rack with the tooth tip facing downward is provided on the lower end surface of the locking rod, and the annular rack is meshed with the limiting tooth.

[0019] Furthermore, the locking device includes a limiting mechanism, which includes a limiting plate, a limiting groove and a limiting block; the limiting plate is fixedly connected to the top surface of the center rod, and the axis of the limiting plate coincides with the axis of the center rod, and a limiting groove is provided on the inner wall of the locking rod, and the limiting plate is placed inside the limiting groove and can rotate inside the limiting groove; the limiting groove is provided on the inner wall of the ferrule, and the limiting block is provided on the outer wall of the locking rod, and the limiting block is placed inside the limiting groove and can move linearly along the limiting groove.

[0020] Furthermore, a sliding hole is provided on the side of the power connection module where the connecting plug is provided, the sliding hole is aligned with the locking hole, a trigger rod is provided inside the sliding hole, and the trigger rod can move axially inside the sliding hole; an outwardly extending toggle rod is provided on the side wall of the trigger rod, the top surface of the toggle rod is in contact with the outside world, and a sliding groove matching the movement trajectory of the toggle rod is provided on the power connection module.

[0021] Furthermore, a fixing groove is provided on the end surface of the extended end of the trigger rod, and the shape of the fixing groove matches the sliding ball.

[0022] Furthermore, the power connection module is provided with a connection slot, and the connection slot and the electrical socket are arranged on a side wall different from that of the power connection module.

[0023] Compared with the prior art, the plug-in socket described in the present invention has the following advantages:

[0024] (1) The plug-in socket created by the present invention can improve the placement flexibility of the socket. There is no need to reserve space for the socket when in use. The socket can be spliced ​​into different shapes according to the needs of the environment, which is convenient for the storage of the socket.

[0025] (2) The present invention creates a modular socket, which can increase the actual usable space of the electrical sockets on the socket. When multiple plugs need to be connected at the same time, the power connection module can be rotated so that the electrical sockets on each power connection module face different directions. Therefore, the plugs of the electrical appliances can be inserted in a staggered manner, avoiding the difficulty of plugging and unplugging caused by adjacent plugs being too large.

[0026] (3) The plug-in socket created by the present invention can realize rapid splicing between modules through a locking device, and can also limit the circumferential position of the connecting plug after the splicing is completed, thereby ensuring the structural stability of the socket when in use.

[0027] (4) The plug-in socket created by the present invention is provided with a protective sleeve at the connection part. When in use, the protective sleeve is embedded in the protective groove, so that the conductive sheet for transmitting power is completely wrapped, reducing the risk of electric shock to the user when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0029] Figure 1 A schematic diagram of the structure of a plug-in socket according to an embodiment of the present invention;

[0030] Figure 2 An exploded view of a plug-in socket according to an embodiment of the present invention;

[0031] Figure 3 A partial cutaway schematic diagram of a connection slot according to an embodiment of the present invention;

[0032] Figure 4 A schematic diagram of the structure of the power connection module according to an embodiment of the present invention;

[0033] Figure 5 A partially enlarged schematic diagram of a connecting plug according to an embodiment of the present invention;

[0034] Figure 6 An exploded schematic diagram of a locking device according to an embodiment of the present invention;

[0035] Figure 7 A schematic diagram of the locking device according to an embodiment of the present invention in an extended state;

[0036] Figure 8 A schematic diagram of the locking device according to an embodiment of the present invention in a retracted state;

[0037] Fig. 9 A schematic diagram of the locking device according to the embodiment of the present invention in a compressed rotation state;

[0038] Fig.10 A schematic diagram of the structure of the trigger rod and the toggle rod according to an embodiment of the present invention;

[0039] Description of reference numerals:

[0040] 1-base module; 11-wire; 12-external plug; 2-power module; 3-locking device; 31-tube shell; 32-top block; 321-cylindrical protrusion; 33-spring; 34-rotating rod; 341-limiting tooth; 342-limiting plate; 343-center rod; 35-card sleeve; 351-ring seat; 352-long card slot; 353-tooth tip; 354-tooth slot; 355-limiting slot; 36-locking rod; 361-ring Rack; 362-limiting block; 363-sliding bead; 4-connecting card slot; 41-first conductive sheet; 42-protective sleeve; 43-rotation chamber; 44-embedded hole; 45-insertion hole; 51-card plate; 52-locking hole; 53-retraction groove; 54-second conductive sheet; 55-protective groove; 56-connecting block; 6-electrical socket; 71-sliding hole; 72-trigger rod; 73-toggle rod; 74-sliding groove; 75-fixed groove. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0043] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0044] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0045] A plug-in socket, the structure of which can be Figure 1 For illustration, as shown in the figure, the socket includes: a base module 1, a power connection module 2 and a locking device 3.

[0046] The base module 1 is the basis for the plug-in of the socket. One or more power modules 2 are plugged into the base module 1 to form a socket shape that adapts to the environment. The plug-in of the power module 2 and the base module 1 is realized by the connection card slot 4 and the connection plug. The connection card slot 4 is set on the base module 1, and the connection plug is set on the power module 2. When the socket is plugged in and combined, the connection plug is inserted into the connection card slot 4, and the relative position of the plug and the card slot is fixed by a detachable connection structure, thereby realizing the plug-in of the base module 1 and the power module 2. Exemplarily, the connection card slot 4 can be a groove with an internal thread, and the connection plug can be a protrusion with an external thread. When the socket is plugged in, the detachable connection between the two modules can be realized by the cooperation of the internal and external threads.

[0047] The locking device 3 is arranged inside the connection slot 4, and is used to lock the connection plug after the plugging is completed, so as to prevent the connection plug from rotating inside the connection slot 4. Exemplarily, the locking device 3 can be a ball plunger arranged on the top of the inner wall of the connection slot 4. When the connection plug is completely inserted into the connection slot 4, the movable end of the ball plunger will be pressed against the root of the connection plug, and the end surface pressure inside the ball plunger will prevent the connection plug from rotating, thereby realizing the circumferential limit of the connection part.

[0048] In addition, the base module 1 is also the power center of the socket. Specifically, the base module 1 is connected to the external plug 12 through the wire 11, and the neutral wire, the live wire and the ground wire are arranged inside the wire 11. The power obtained by the external plug 12 can be transmitted to the circuit inside the base module 1 through the wire 11. A safety resistor is connected in series on the live wire of the internal circuit. Under normal circumstances, the resistor has the function of an ordinary resistor. Once a circuit fails or the circuit load exceeds its rated power, it will disconnect the circuit within a specified time, thereby achieving the function of protecting the socket. A first conductive sheet 41 is arranged at the end of the internal circuit, and a part of the conductive sheet is arranged inside the connection card slot 4 and exposed outside the base module 1, so as to realize the external power output of the base module 1.

[0049] The connecting plug is provided with a second conductive sheet 54. When the power connection module 2 is plugged into the base module 1, the first conductive sheet 41 and the second conductive sheet 54 are fitted together, so that the power is transferred from the base module 1 to the internal circuit of the power connection module 2. The power connection module 2 is also provided with a plurality of electrical sockets 6, each of which is used to connect an electrical appliance plug and guide the power inside the socket to the electrical appliance. The corresponding live wire socket on the electrical socket 6 is connected to the live wire of its internal circuit, the neutral wire socket is connected to the neutral wire of its internal circuit, and the ground wire socket is connected to the ground wire of its internal circuit. The electrical sockets 6 are connected in parallel.

[0050] The following is an explanation of the effects of the above scheme:

[0051] The above scheme provides a plug-in socket, the external shape of which can be changed according to different plug-in methods, so there is no need to reserve placement space for the socket, and it has higher placement flexibility compared with existing sockets.

[0052] In order to reduce the difficulty of plugging and unplugging the socket, the connection slot 4 may be selected as shown in the attached Figure 3 The structure shown in the figure, the connecting plug can be optionally attached Figure 4 The structure shown. Figure 3 As shown, the connection slot 4 includes an insertion hole 45 and a cylindrical rotating cavity 43, wherein the rotating cavity 43 is arranged inside the base module 1, the top surface of the rotating cavity 43 is connected to the outside through the insertion hole 45, and the insertion hole 45 coincides with the center line of the rotating cavity 43. Figure 4 As shown, the connection plug includes a connection block 56 and a card-mounting piece 51, wherein the card-mounting piece 51 is connected to the power connection module 2 through the connection block 56, and the card-mounting piece 51 is parallel to the side of the power connection module 2 where the connection plug is provided.

[0053] During the splicing, the card-mounting piece 51 is inserted into the rotating cavity 43 through the insertion hole 45, and then the power connection module 2 is rotated so that the card-mounting piece 51 is misaligned with the insertion hole 45, thereby realizing the connection between the base module 1 and the power connection module 2. Since the cross-sectional area of ​​the rotating cavity 43 is larger than the cross-sectional area of ​​the insertion hole 45, when the card-mounting piece 51 is misaligned with the insertion hole 45 after rotation, the side wall of the base module 1 will limit the card-mounting piece 51, which can prevent the connection plug with the card-mounting piece 51 from being separated from the connection slot 4, thereby realizing the splicing between the two modules.

[0054] In addition, in order to prevent the power module 2 from rotating circumferentially after the socket is plugged in, thereby destroying the original orientation of the power socket 6 of the socket, an embedding hole 44 is provided on the bottom surface of the rotation cavity 43, and the embedding hole 44 is used to accommodate the locking device 3; a locking hole 52 is also provided on the card-mounting sheet 51, and the locking hole 52 is used to accommodate the extended locking device 3. When the connecting plug reaches the preset position, the locking device 3 can be triggered by rotating the dislocation, so that the locking device 3 passes through the locking hole 52, thereby realizing the circumferential limit of the power module 2.

[0055] Optionally, the locking device 3 includes a tube shell 31, a top block 32, a spring 33, a rotating rod 34, a clamping sleeve 35 and a locking rod 36, and its structure can be attached. Figure 6 To give a hint.

[0056] Among them, the tube shell 31 is used to accommodate the remaining components inside the locking device 3; the top block 32 and the spring 33 cooperate to provide elastic force for triggering the locking device 3; the rotating rod 34 and the clamping sleeve 35 cooperate to realize the switching of the locking device 3 between the extension, contraction and compression states; the locking rod 36 is used to trigger the state switching of the locking device 3 and execute the locking action of the locking device 3.

[0057] The top block 32 is arranged inside the tube shell 31, and the bottom surface of the top block 32 is connected to the bottom surface of the tube shell 31 through a spring 33. A cylindrical protrusion 321 is arranged on the top surface of the top block 32. A rotating rod 34 is arranged above the top block 32. The rotating rod 34 includes a center rod 343 and a limiting tooth 341. A groove for accommodating the cylindrical protrusion 321 is arranged on the bottom surface of the center rod 343. The limiting tooth 341 is arranged on the side wall of the rotating rod 34, and the tooth tip of the limiting tooth 341 faces the top surface of the center rod 343. The top end of the rotating rod 34 is placed inside the locking rod 36. A sliding bead 363 is arranged at the center of the top surface of the locking rod 36. An annular rack 361 with the tooth tip facing downward is arranged on the lower end surface of the locking rod 36, and the annular rack 361 is meshed with the limiting tooth 341. The clamping sleeve 35 is provided on the outside of the locking rod 36, and the top end surface of the clamping sleeve 35 is flush with the top end surface of the tube shell 31. The clamping sleeve 35 includes a ring seat 351 and a combination tooth. The combination tooth is arranged in an annular shape on the bottom surface of the ring seat 351, and a long clamping groove 352 is provided between two adjacent combination teeth. The combination tooth includes two adjacent tooth tips 353, and a tooth groove 354 is provided between the two tooth tips 353. Among them, the long clamping groove 352 is used to accommodate the limiting tooth 341 when the locking device 3 is in the extended state, the tooth tip 353 is used to drive the rotating rod 34 to rotate when the locking device 3 is in the compressed state, and the tooth groove 354 is used to fix the limiting tooth 341 when the locking device 3 is in the contracted state.

[0058] It should be noted that the position-limiting tooth 341, the annular rack 361 and the tooth tip 353 are all tooth shapes with an inclined surface on only one side, and the inclined surface slopes of the tooth structures are the same. However, in order to ensure that the annular rack 361 can drive the rotating rod 34 to rotate, the inclined surface length of the annular rack 361 is greater than the inclined surface length of the position-limiting tooth 341.

[0059] The locking device 3 has three working states in practice: Figure 7 The figure shows the extended state, at which time the locking device 3 realizes the circumferential locking of the connecting plug; Figure 8 The figure shows the contracted state, at which the locking device 3 cannot play a locking role; Fig. 9 The compressed state is shown, at which the locking device 3 switches between the extended state and the retracted state.

[0060] When the locking device 3 is in the extended state, the spring 33 is in the free state, and the limiting tooth 341 is in the long slot 352. Due to the lifting effect of the rotating rod 34, the locking rod 36 extends outward, so the upper end of the locking rod 36 will be inserted into the locking hole 52, and the lower end of the locking rod 36 will still stay in the tube shell 31. At this time, the rotational torque acting on the card plate 51 will be offset by the locking rod 36, so the power module 2 will not rotate in the circumferential direction.

[0061] When the locking device 3 is in the retracted state, the spring 33 is in the compressed state, and the limiting tooth 341 is embedded in the tooth groove 354. Since the height of the rotating rod 34 is relatively low at this time, it is not enough to lift the top end of the locking rod 36 to insert into the locking hole 52, and therefore the circumferential limiting of the power connection module 2 cannot be achieved by the locking device 3.

[0062] When the locking device is in a compressed state, the spring 33 is in a highly compressed state, and the tooth tip of the limiting tooth 341 is lower than the tooth tip of the tooth tip portion 353. Since the inclined plane length of the annular rack 361 is greater than the inclined plane length of the limiting tooth 341, when the limiting tooth 341 loses the limit of the clamping sleeve 35, it will continue to slide along the inclined plane of the annular rack 361, and this sliding process will cause the rotating rod 34 to rotate in the circumferential direction. When the compressed state is released, the rotating rod 34 moves upward under the elastic force of the spring 33, and the inclined plane of the limiting tooth 341 will contact the inclined plane of the tooth tip portion 353. Since the two inclined planes will slide relative to each other, the limiting tooth 341 will enter the long card slot 352 (or tooth slot 354) next to the tooth tip portion 353. Since the long card slot 352 and the tooth slot 354 are alternately arranged on the clamping sleeve 35, the compressed state will realize the switching of the locking device 3 between the contraction and extension states.

[0063] Optionally, in order to improve the integrity of the locking device 3 and prevent the locking rod 36 from always staying inside the locking hole 52, the locking device 3 also includes a limiting mechanism, which includes a limiting plate 342, a limiting groove 355 and a limiting block 362.

[0064] The limiting piece 342 is fixedly connected to the top surface of the center rod 343, and the axis of the limiting piece 342 coincides with the axis of the center rod 343. A limiting groove is provided on the inner wall of the locking rod 36, and the limiting piece 342 is placed inside the limiting groove and can rotate inside the limiting groove. The cooperation between the limiting piece 342 and the limiting groove can make the locking rod 36 and the rotating rod 34 perform the rising and falling actions synchronously. Since the limiting piece 342 can rotate inside the limiting groove, this setting will not hinder the normal operation of the locking device 3.

[0065] The limiting groove 355 is arranged on the inner wall of the ferrule 35, the limiting block 362 is arranged on the outer wall of the locking rod 36, and the limiting block 362 is placed inside the limiting groove 355 and can move linearly along the limiting groove 355. The cooperation between the limiting block 362 and the limiting groove 355 can limit the stroke length of the locking rod 36, thereby avoiding damage to the spring 33 (the locking rod 36 drops too much) and damage to the integrity of the locking device 3 (the locking rod 36 rises too much and causes separation from the tube shell 31). In addition, the limiting groove 355 and the limiting block 362 can also prevent the locking rod 36 from rotating in the circumferential direction, thereby ensuring that the annular rack 361 is always meshed with the limiting teeth 341.

[0066] Since the locking device 3 is arranged inside the connection slot 4, an unlocking device is required to realize the state switching of the locking device 3. Optionally, a sliding hole 71 is provided on the side of the power connection module 2 where the connection plug is provided, and the sliding hole 71 is aligned with the locking hole 52. A trigger rod 72 is provided inside the sliding hole 71, and the trigger rod 72 can move axially inside the sliding hole 71; a toggle rod 73 extending outward is provided on the side wall of the trigger rod 72, and the top surface of the toggle rod 73 contacts the outside world, and a sliding groove 74 matching the movement trajectory of the toggle rod 73 is provided on the power connection module 2, wherein the structural relationship between the trigger rod 72 and the toggle rod 73 can be represented by Fig.10 To give a hint.

[0067] When performing the unlocking action, the toggle rod 73 is pushed to move the toggle rod 73 forward inside the slide slot 74, and this movement trend is transmitted to the trigger rod 72 through the toggle rod 73, so the outer end surface of the trigger rod 72 will move toward the locking hole 52. When the trigger rod 72 contacts the locking rod 36, the outer end surface of the trigger rod 72 will apply a pressure to the locking rod 36, causing the locking rod 36 to retract into the tube shell 31. When the stroke length of the trigger rod 72 meets the pressing length of the locking device 3 to reach the compressed state, the locking device 3 will switch from the extended state to the retracted state, and the unlocking action is completed at this time.

[0068] As a preferred implementation of this embodiment, a fixing groove 74 is provided on the extended end surface of the trigger rod 72, and the shape of the fixing groove 74 matches the sliding bead 363. When the trigger rod 72 contacts the locking rod 36, the sliding bead 363 is embedded in the fixing groove 74, thereby avoiding relative sliding between the locking rod 36 and the trigger rod 72, so as to ensure that the unlocking force can be completely transmitted to the inside of the locking device 3.

[0069] Optionally, in order to improve the locking position of the power connection module 2 and provide more orientation angles of the electrical socket 6, at least three locking devices 3 are arranged inside the same connection slot 4, and the locking devices 3 are arranged in a ring shape with the first conductive sheet 41 as the center. Specifically, there can be eight locking devices 3 arranged inside the same connection slot 4, and the eight locking devices 3 are evenly arranged in a ring shape around the first conductive sheet 41. At this time, the power connection module 2 will have 8 different locking positions, and the difference between two adjacent locking positions is 45°.

[0070] To prevent the card plate 51 from triggering multiple locking devices 3 simultaneously on the rotation path, optionally, an arc-shaped retreat groove 53 can be provided on the card plate 51, and the retreat groove 53 is provided in the clockwise direction of the locking hole 52, one end of which is connected to the locking hole 52, and the other end is connected to the outside.

[0071] Before the insertion process begins, the locking devices 3 placed in the embedded holes 54 are all in a retracted state. When the connecting plug enters the insertion hole 45 and rotates, the end surface of the card-mounted sheet 51 will squeeze the exposed head of the locking rod 36. This squeezing process will switch the locking device 3 from a retracted state to a compressed state. When the locking hole 52 is aligned with the locking device 3, the locking rod 36 will bounce up due to the elastic force of the spring 33 and insert into the locking hole 52, thereby locking the power connection module 2. When the locking angle of the power connection module 2 needs to be changed, the locking device 3 needs to be changed to a retracted state with the help of an unlocking device, and then the power connection module 2 is rotated clockwise. Since the retreat groove 53 is set in the clockwise direction of the locking hole 52, the locking device 3 that has restored the retracted state will not be triggered again by the card-mounted sheet 51, so that it can be ensured that only the locking device 3 aligned with the locking hole 52 in the connection card slot 4 is in an extended state, and the rest of the locking devices 3 are in a retracted state.

[0072] In addition, the sliding bead 363 disposed on the head of the locking rod 36 can reduce the friction coefficient between the card-mounting piece 51 and the locking rod 36, thereby increasing the service life of the device.

[0073] In the existing socket, since the arrangement of the jacks is relatively concentrated, the gap between adjacent jacks is small, so two large plugs cannot be connected at the same time. In this embodiment, the locking device 3 arranged in a ring shape provides multiple locking angles for the power connection module 2. When a large plug is connected, it is only necessary to stagger the adjacent power connection modules 2 so that the power jacks 6 on the adjacent power connection modules 2 have different directions, thereby providing sufficient operating space for the insertion of the large plug.

[0074] Optionally, in order to improve the safety performance of the socket and prevent the user from getting an electric shock at the connection position of each module, protective devices are provided on the connection slot 4 and the connection plug respectively. The protective device includes a protective sleeve 42 arranged inside the connection slot 4 and a protective groove 55 arranged on the connection plug. The protective sleeve 42 is arranged outside the first conductive sheet 41, and the protective sleeve 42 is perpendicular to the bottom surface of the rotating cavity 43; the protective groove 55 is arranged outside the second conductive sheet 54, and the shape of the protective groove 55 matches the protective sleeve 42.

[0075] When the modules are plugged in, the protective sleeve 42 is inserted into the protective groove 55 to isolate the conductive sheet from the external environment. Therefore, the user will not touch the charged first conductive sheet 41 or the second conductive sheet 54, and no electric shock accident will occur.

[0076] Optionally, in order to enrich the splicing mode of the device, a connection slot 4 may be provided on the power connection module 2, and the connection slot 4 and the electrical socket 6 provided on the same power connection module 2 are respectively located on different sides. By providing the connection slot 4 on the power connection module 2, two power connection modules 2 can be spliced, so that the socket has more electrical sockets 6.

[0077] The working process of a plug-in socket described in this embodiment is described below:

[0078] Before use, the socket needs to be assembled and plugged into shape according to the requirements of the working environment. After the assembly and plugging are completed, the external plug 12 is connected to the power supply network so that the socket can obtain power. Then, the plugs of various electrical appliances are inserted into the electrical socket 6 to realize power acquisition of the electrical appliances.

[0079] If the locking position of the power module 2 needs to be adjusted during use, the external plug 12 needs to be unplugged in advance to avoid electric shock accidents during the module splicing process.

[0080] The effect of this embodiment is described below:

[0081] This embodiment provides a plug-in socket that can be combined and plugged according to the requirements of the working environment, and has higher placement flexibility than existing sockets. In addition, the socket can adjust the direction of the electrical socket according to the use requirements, so that adjacent electrical sockets are staggered, providing a larger actual use space for the socket and avoiding the inconvenience of operation caused by the plug being too large.

[0082] The base module, power connection module, protective sleeve and unlocking device described in this embodiment are all made of insulating materials, which can effectively prevent electric shock caused by contact. The insulating material is existing technology, and polycarbonate can be selected.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A plug-in socket, characterized in that: include: A base module (1), a power connection module (2) and a locking device (3); The base module (1) is connected to an external plug (12) via a wire (11); a connection slot (4) is provided on the base module (1); and a first conductive sheet (41) is provided inside the connection slot (4); The power connection module (2) is provided with a connection plug and an electric socket (6), and the connection plug and the electric socket (6) are arranged on different sides of the power connection module (2); the connection plug is provided with a second conductive sheet (54); when the connection plug is installed, it is inserted into the connection slot (4), and the first conductive sheet (41) and the second conductive sheet (54) are fitted together, so that power is transmitted from the base module (1) to the power connection module (2); the power connection module (2) is provided with a connection slot (4), and the connection slot (4) and the electric socket (6) are arranged on different side walls of the power connection module (2); The locking device (3) is arranged inside the connection slot (4) and is used to lock the connection plug after the plugging is completed, so as to prevent the connection plug from rotating inside the connection slot (4); the connection slot (4) comprises an insertion hole (45) and a cylindrical rotation cavity (43); the rotation cavity (43) is arranged inside the base module (1); the top surface of the rotation cavity (43) is connected to the outside through the insertion hole (45), and the insertion hole (45) coincides with the center line of the rotation cavity (43); a first conductive sheet (41) is provided on the bottom surface of the rotation cavity (43) and an embedding hole (44), the embedding hole (44) being used to accommodate the locking device (3); the connecting plug comprising a connecting block (56) and a card-mounting sheet (51), the card-mounting sheet (51) being connected to the power connection module (2) via the connecting block (56), the card-mounting sheet (51) being parallel to a side surface of the power connection module (2) on which the connecting plug is provided, the second conductive sheet (54) being arranged at a central position of the card-mounting sheet (51), the card-mounting sheet (51) being further provided with a locking hole (52), the locking hole (52) being used to accommodate the locking device (3) in an extended state; The locking device (3) comprises a tube shell (31), a top block (32), a spring (33), a rotating rod (34), a ferrule (35) and a locking rod (36); the top block (32) is arranged inside the tube shell (31); the bottom surface of the top block (32) is connected to the bottom surface of the tube shell (31) via the spring (33); a cylindrical protrusion (321) is arranged on the top surface of the top block (32); the rotating rod (34) is arranged inside the tube shell (31) and comprises a center rod (343) and a limiting tooth (341); a groove for accommodating the cylindrical protrusion (321) is arranged on the bottom surface of the center rod (343); the limiting tooth (341) is arranged on the side wall of the rotating rod (34), and the tooth tip of the limiting tooth (341) faces the center rod (343). The ferrule (35) is placed inside the tube shell (31) and comprises a ring seat (351). The top surface of the ring seat (351) is flush with the top surface of the tube shell (31). A ring-shaped combined tooth is provided on the bottom surface of the ring seat (351). A long groove (352) is provided between two adjacent combined teeth. The combined tooth comprises two adjacent tooth tips (353). A tooth groove (354) is provided between the two tooth tips (353). The lower end of the locking rod (36) is placed inside the ferrule (35). A sliding bead (363) is provided at the center of the top surface of the locking rod (36). An annular rack (361) with the tooth tip facing downward is provided on the lower end surface of the locking rod (36). The annular rack (361) is meshed with the limit tooth (341).

2. The plug-in socket according to claim 1, characterized in that: There are at least three locking devices (3) arranged inside the same connecting slot (4), and the locking devices (3) are arranged in a ring shape with the first conductive sheet (41) as the center.

3. A plug-in socket according to claim 1 or 2, characterized in that: The card-mounting sheet (51) comprises an arc-shaped retreat groove (53), which is arranged in the clockwise direction of the locking hole (52), one end of which is connected to the locking hole (52) and the other end of which is in communication with the outside.

4. The plug-in socket according to claim 3, characterized in that: The connecting slot (4) comprises a protective sleeve (42), the protective sleeve (42) being arranged outside the first conductive sheet (41), and the protective sleeve (42) being perpendicular to the bottom surface of the rotating chamber (43); the connecting plug comprises a protective groove (55), the protective groove (55) being arranged outside the second conductive sheet (54), and the shape of the protective groove (55) being consistent with that of the protective sleeve (42).

5. The plug-in socket according to claim 1, characterized in that: The locking device (3) comprises a limiting mechanism, which comprises a limiting plate (342), a limiting groove (355) and a limiting block (362); the limiting plate (342) is fixedly connected to the top surface of the center rod (343), and the axis of the limiting plate (342) coincides with the axis of the center rod (343); a limiting groove is provided on the inner wall of the locking rod (36); the limiting plate (342) is arranged inside the limiting groove and can rotate inside the limiting groove; the limiting groove (355) is arranged on the inner wall of the ferrule (35); the limiting block (362) is arranged on the outer wall of the locking rod (36); the limiting block (362) is arranged inside the limiting groove (355) and can move linearly along the limiting groove (355).

6. The plug-in socket according to claim 1, characterized in that: A sliding hole (71) is provided on the side of the power connection module (2) on which the connecting plug is provided, the sliding hole (71) being aligned with the locking hole (52), a trigger rod (72) being provided inside the sliding hole (71), the trigger rod (72) being able to move axially inside the sliding hole (71); a toggle rod (73) extending outward is provided on the side wall of the trigger rod (72), the top surface of the toggle rod (73) being in contact with the outside, and a sliding groove (74) matching the movement trajectory of the toggle rod (73) is provided on the power connection module (2).

Images