A plug-in board

Abstract

The utility model provides a kind of plugboard, including plugboard body and expansion plug, the plugboard body is equipped with several expansion socket;The expansion plug includes shell body and telescopic shell body, the shell body one end is equipped with the telescopic mouth being connected with its inner cavity, the telescopic shell body is located in telescopic mouth and is relative to shell body telescopic adjustment, the shell body back is equipped with plug, the telescopic shell body is away from the end of shell body and the interval between plugboard body side wall and is connected by flexible joint between the two;It further includes flexible cable for connecting plug and each expansion socket, the flexible cable passes from flexible joint inside.The utility model has the advantages that it realizes the flexible connection between plugboard body and expansion plug, and can effectively reduce the stress of plug when plugging and unplugging and encountering impact and knocking.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to a plug-in board. Background Technology

[0002] Existing power strips are divided into portable and fixed types. Portable power strips generally have cables and plugs attached to the strip body, allowing for easy relocation. Fixed power strips have prongs on the strip body, which are directly inserted into wall sockets. Therefore, fixed power strips rely entirely on the connection between the prongs and the socket for fixation. Since the panel of a typical socket protrudes from the wall, after the prongs on the back of the power strip are fixed to the socket, the back of the power strip only forms a small area of ​​contact and support with the socket panel. There is often a gap between most of the back of the power strip and the wall. When plugging or unplugging, uneven force can easily cause the power strip to tilt and fall off. In addition, the instability of the connection between the power strip and the socket relying solely on the prongs increases the possibility of prong damage.

[0003] To address the aforementioned issues, the inventor applied for a retractable extension plug with patent number CN202421621542.6 on July 9, 2024. The plug includes a plug body and an extension plug. The plug body has several extension slots, and the extension plug has prongs located on its rear sidewall. The extension plug has a telescopic component connected to the plug body and retractable relative to the extension plug. The telescopic component's extension direction is parallel to the horizontal direction of the rear sidewall of the extension plug and perpendicular to the insertion / removal direction of the prongs. The rear sidewall of the extension plug is parallel to and spaced apart from the rear sidewall of the plug body, forming a staggered arrangement. When the rear sidewall of the extension plug abuts against a socket, the rear sidewall of the plug body abuts against the wall.

[0004] In subsequent use, the inventors discovered that if the assembly precision between the socket body and the expansion plug is too high (i.e., there is insufficient clearance between them), the force will be directly applied to the pins of the expansion plug when plugging or unplugging or when encountering impacts or bumps, which can easily cause deformation of the pins or damage to the socket; if a gap is left, the socket body and the expansion plug will become loose, which can easily produce abnormal noise. Utility Model Content

[0005] Based on the above problems, the purpose of this utility model is to provide a plug that enables flexible connection between the plug body and the expansion plug, and can effectively reduce the force on the plug pins when plugging and unplugging or encountering impacts.

[0006] To address the above problems, the following technical solution is provided: a plug board, comprising a plug board body and an expansion plug, wherein the plug board body is provided with a plurality of expansion ports; the expansion plug comprises an outer shell and a telescopic shell, wherein one end of the outer shell is provided with a telescopic opening connected to its inner cavity, the telescopic shell is located within the telescopic opening and can be telescopically adjusted relative to the outer shell, the back of the outer shell is provided with pins, and the end of the telescopic shell away from the outer shell is spaced apart from the side wall of the plug board body and the two are connected by a flexible connector; it also includes a flexible cable for connecting the pins to each expansion port, the flexible cable passing through the flexible connector.

[0007] The present invention is further configured such that the side wall of the insert plate body is provided with an insertion interface; one end of the flexible connector is provided with a plug connector, and the plug connector is provided with insertion grooves on both sides along the thickness direction of the insert plate body, and the insertion grooves of the plug connector are engaged with the insertion interface along the thickness direction of the insert plate body to achieve the connection between the two.

[0008] The present invention is further configured such that the outer shell includes a bottom cover and a front cover that are fastened to each other, the pin is installed on the bottom cover and extends outward from the back of the bottom cover; the telescopic shell includes a lower cover and an upper cover that are fastened to each other, and the flexible joint is clamped and fixed between the lower cover and the upper cover at one end away from the insert plate body.

[0009] The present invention is further configured such that the inner wall of the outer shell is provided with positioning pits arranged at intervals along the telescopic direction of the telescopic shell; and the outer wall of the telescopic shell is provided with positioning tumblers adapted to the positioning pits.

[0010] The present invention is further provided that the inner wall of the outer shell is provided with an extension blocking plate, and the end of the telescopic shell away from the insert plate is provided with an extension blocking block that abuts against the extension blocking plate when it extends.

[0011] The present invention is further provided that the end of the telescopic housing facing the insert plate body is provided with a retraction blocking piece that abuts against the telescopic opening when retracted.

[0012] The present invention is further provided in that the inner wall of the outer shell is provided with sliding grooves on both sides, which are opened in the same direction as the telescopic shell's telescopic direction; and the telescopic shell is provided with sliding pieces on both sides that are adapted to slide in the sliding grooves.

[0013] The present invention is further configured such that the interval between the insert plate body and the telescopic shell is 3mm-30mm.

[0014] The present invention is further provided that the rear side wall of the insert plate body is provided with an adhesive part and / or a fixing hole and / or a screw hanging hole.

[0015] The present invention is further configured such that the expansion port is a two-pronged plug and / or a three-pronged plug and / or a USB charging port.

[0016] The beneficial effects of this utility model are:

[0017] 1. The socket body and the expansion plug are connected by a flexible joint, which achieves a gapless connection and uses the flexibility of the joint itself to buffer the impact. This ensures that the expansion plug can form a non-rigid connection with the socket body when plugged in or out, and also prevents the force from being directly transmitted to the pins through the expansion plug when the socket body is hit or bumped, thus avoiding damage to the pins. At the same time, the expansion plug can adjust the distance between the socket body and the outer edge of the socket through the telescopic cooperation between the outer shell and the telescopic shell. For some concealed sockets that are flush with the wall or slightly higher than the wall, the flexible joint can directly achieve adaptive alignment through its own flexibility, so that the socket body and the expansion plug are staggered in the direction perpendicular to the wall (i.e., the direction of plug insertion and removal).

[0018] 2. The flexible connector is integrally injection molded from flexible plastic, achieving frameless fit with the insertion slot while locking and fixing. Attached Figure Description

[0019] Figure 1 This is a first-person perspective three-dimensional structural diagram of the extension plug of this utility model in its retracted state.

[0020] Figure 2 This is a second-view perspective three-dimensional structural diagram of the extension plug of this utility model in its extended state.

[0021] Figure 3 This is a first-person perspective three-dimensional structural diagram of the extension plug of this utility model in its retracted state.

[0022] Figure 4 This is a second-view perspective three-dimensional structural diagram of the extension plug of this utility model in its extended state.

[0023] Figure 5 This is a first-person perspective three-dimensional structural diagram of the expansion plug and the plug plate body of this utility model in a separated state.

[0024] Figure 6 This is a second-view perspective three-dimensional structural diagram of the expansion plug and the plug plate body of this utility model in a separated state.

[0025] Figure 7 This is a first-view three-dimensional structural diagram of the expansion plug of this utility model.

[0026] Figure 8 This is a first-explosion second-view three-dimensional structural diagram of the expansion plug of this utility model.

[0027] Figure 9 This is a first-person perspective three-dimensional structural diagram of the second explosion of the expansion plug of this utility model.

[0028] Figure 10This is a two-dimensional structural diagram of the expansion plug of this utility model from a second perspective.

[0029] Figure 11 This is a first-person perspective three-dimensional structural diagram of the expansion plug of this utility model.

[0030] Figure 12 This is a three-dimensional structural diagram of the expansion plug of this utility model from a third-explosive second-view perspective.

[0031] The labels in the diagram mean the following meanings: 10-Plug body; 11-Extension socket; 12-Plug interface; 20-Extension plug; 21-Outer shell; 211-Retractable port; 212-Pin; 213-Bottom cover; 214-Front cover; 215-Positioning recess; 216-Extending blocking plate; 217-Slide groove; 22-Retractable shell; 221-Lower cover; 222-Upper cover; 223-Positioning pin; 224-Extending blocking block; 225-Retractable blocking plate; 226-Slide plate; 30-Flexible connector; 31-Plug interface; 32-Plug slot. Detailed Implementation

[0032] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0033] refer to Figures 1 to 12 ,like Figures 1 to 12 The diagram shows a power strip including a power strip body 10 and an expansion plug 20. The power strip body 10 has a plurality of expansion ports 11. The expansion plug 20 includes a housing 21 and a telescopic housing 22. One end of the housing 21 has a telescopic opening 211 connected to its inner cavity. The telescopic housing 22 is located inside the telescopic opening 211 and can be telescopically adjusted relative to the housing 21. The back of the housing 21 has pins 212. The end of the telescopic housing 22 away from the housing 21 is spaced apart from the side wall of the power strip body 10 and the two are connected by a flexible connector 30. The diagram also includes a flexible cable (not shown) for connecting the pins 212 to each expansion port 11. The flexible cable (not shown) passes through the flexible connector 30.

[0034] In the above structure, the socket body 10 and the expansion plug 20 are connected by a flexible joint 30, which achieves a gapless connection and uses the flexible joint 30's own flexible deformation for buffering. This ensures that the expansion plug 20 can form a non-rigid connection with the socket body 10 when plugged in or out. It also prevents the force from being directly transmitted to the pins 212 through the expansion plug 20 when the socket body 10 is hit or bumped (such as plugging in or unplugging electrical appliances, installing the socket, etc.), thus avoiding damage to the pins 212. At the same time, the expansion plug 20 can adjust the distance between the socket body 10 and the outer edge of the socket (not shown in the figure) through the telescopic cooperation between the outer shell 21 and the telescopic shell 22. For some concealed sockets that are flush with the wall (not shown in the figure) or sockets that are slightly higher than the wall (not shown in the figure), the flexible joint 30 can directly achieve adaptive alignment through its own flexible deformation (creeping into a Z-shape), so that the socket body 10 and the expansion plug 20 are staggered in the direction perpendicular to the wall (i.e., the insertion and removal direction of the pins 212).

[0035] In this embodiment, the side wall of the insert plate body 10 is provided with an insertion interface 12; one end of the flexible connector 30 is provided with a connector 31, and the two sides of the connector 31 are provided with insertion grooves 32 opened along the thickness direction of the insert plate body 10. The insertion grooves 32 of the connector 31 are inserted into the connector 12 along the thickness direction of the insert plate body 10 to achieve docking between the two.

[0036] In the above structure, the flexible connector 30 is integrally injection molded from flexible plastic, which achieves frameless fit with the insertion groove 32 while locking and fixing.

[0037] In this embodiment, the outer shell 21 includes a bottom cover 213 and a front cover 214 that are fastened to each other, and the pin 212 is installed on the bottom cover 213 and extends outward from the back of the bottom cover 213; the telescopic shell 22 includes a lower cover 221 and an upper cover 222 that are fastened to each other, and the flexible connector 30 is clamped and fixed between the lower cover 221 and the upper cover 222 at one end away from the insert plate body 10.

[0038] In the above structure, the bottom cover 213 and the front cover 214 are connected by a snap-fit ​​connection and / or screw fixation (existing technology, which will not be described here); the lower cover 221 and the upper cover 222 are connected by a snap-fit ​​connection and / or screw fixation (existing technology, which will not be described here); the snap-fit ​​fixation between the lower cover 221 and the upper cover 222 simultaneously achieves the clamping and fixation of the flexible joint 30.

[0039] In this embodiment, the inner wall of the outer shell 21 is provided with positioning pits 215 arranged at intervals along the telescopic direction of the telescopic shell 22; the outer wall of the telescopic shell 22 is provided with positioning tumblers 223 adapted to the positioning pits 215.

[0040] In the above structure, the positioning ball 223 includes a positioning head and a spring. The positioning ball 223 is used to provide a step-by-step feel for the extension and retraction of the telescopic housing 22 and to position it.

[0041] In this embodiment, the inner wall of the outer shell 21 is provided with an extension blocking plate 216, and the end of the telescopic shell 22 away from the insert plate 10 is provided with an extension blocking block 224 that abuts against the extension blocking plate 216 when it extends outward.

[0042] In the above structure, the extension blocking plate 216 and the extension blocking block 224 are used to provide limit position constraints for the telescopic shell 22 when it extends.

[0043] In this embodiment, the telescopic housing 22 is provided with a retraction blocking piece 225 at one end facing the insert plate body 10, which abuts against the telescopic opening 211 when retracted.

[0044] In the above structure, the retraction stop plate 225 is used to provide limit position constraints when the telescopic shell 22 is retracted.

[0045] In this embodiment, the inner walls of the outer shell 21 are provided with sliding grooves 217 on both sides, which are in the same direction as the telescopic shell 22; the telescopic shell 22 is provided with sliding pieces 226 on both sides that are adapted to slide in the sliding grooves 217.

[0046] In the above structure, the sliding groove 217 and the sliding plate 226 are adapted to improve the stability of the telescopic housing 22 during telescopic extension and retraction.

[0047] In this embodiment, the distance between the insert plate 10 and the telescopic housing 22 is 3mm-30mm.

[0048] In the above structure, the interval between the insert plate 10 and the telescopic housing 22 is preferably 10mm, 15mm or 20mm.

[0049] In this embodiment, the rear side wall of the insert plate body 10 is provided with an adhesive part and / or a fixing hole and / or a screw hanging hole (existing technology, not marked in the figure).

[0050] In this embodiment, the expansion port 11 is a two-pronged plug and / or a three-pronged plug and / or a USB charging port.

[0051] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A power strip, comprising a power strip body and an expansion plug, wherein the power strip body is provided with a plurality of expansion slots; the expansion plug comprises an outer shell and a telescopic housing, one end of the outer shell is provided with a telescopic opening connected to its inner cavity, the telescopic housing is located within the telescopic opening and is telescopically adjustable relative to the outer shell, and the back of the outer shell is provided with prongs, characterized in that: The telescopic housing is spaced apart from the outer shell and the side wall of the insert plate, and the two are connected by a flexible joint; it also includes a flexible cable for connecting the pins to each expansion port, the flexible cable passing through the flexible joint.

2. The insert plate according to claim 1, characterized in that: The side wall of the insert plate is provided with an insertion interface; one end of the flexible connector is provided with a plug connector, and the plug connector is provided with insertion grooves on both sides along the thickness direction of the insert plate. The insertion grooves of the plug connector are inserted into the insertion interface along the thickness direction of the insert plate to achieve docking between the two.

3. The insert plate according to claim 1, characterized in that: The outer shell includes a bottom cover and a front cover that are interlocked with each other, and the pin is installed on the bottom cover and extends outward from the back of the bottom cover; the telescopic shell includes a lower cover and an upper cover that are interlocked with each other, and the flexible joint is clamped and fixed between the lower cover and the upper cover at the end away from the insert plate body.

4. A plug-in plate according to claim 3, characterized in that: The inner wall of the outer shell is provided with positioning pits arranged at intervals along the telescopic direction of the shell; the outer wall of the telescopic shell is provided with positioning tumblers that are adapted to the positioning pits.

5. A plug-in plate according to claim 3, characterized in that: The inner wall of the outer shell is provided with an extension blocking plate, and the end of the telescopic shell away from the insert plate is provided with an extension blocking block that abuts against the extension blocking plate when it extends.

6. A plug-in plate according to claim 3, characterized in that: The telescopic housing is provided with a retraction blocking plate at one end facing the insert body, which abuts against the telescopic opening when retracted.

7. A plug-in plate according to claim 3, characterized in that: The inner wall of the outer shell is provided with sliding grooves on both sides, which are opened in the same direction as the telescopic shell's telescopic direction; the telescopic shell is provided with sliding pieces on both sides that are adapted to slide in the sliding grooves.

8. A plug-in plate according to claim 1, characterized in that: The distance between the insert plate and the telescopic shell is 3mm-30mm.

9. A plug-in plate according to claim 1, characterized in that: The rear side wall of the insert plate is provided with an adhesive part and / or a fixing hole and / or a screw hanging hole.

10. A plug-in plate according to claim 1, characterized in that: The expansion port is a two-prong plug or / and a three-prong plug or / and a USB charging port.

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