Expansion plug of expansion plugboard
By designing a telescopic plug that combines the telescopic plug of the expansion board with the pin assembly, the problem of unstable existing expansion boards during plugging and unplugging is solved, better positioning effect and safety are achieved, and cable exposure is avoided.
Patent Information
- Application Number
- CN202520985680.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2035-05-20
AI Technical Summary
The existing expansion plug board is prone to tilt and fall off due to uneven stress when plugging and uneven, and the butt between the pins and the socket is unstable, which can easily lead to damage to the pins.
A telescopic plug for expansion board is designed, using a retractable telescopic member combined with the pin assembly to improve the positioning effect through telescopic positioning pins and positioning pits, and avoid exposure of cables through wire-controlled cover plates and closing partitions, enhancing overall aesthetics and safety.
It effectively improves the fixing and support effect between the insert plate and the wall, avoids exposure of cables, enhances positioning accuracy and safety and reliability, and reduces the possibility of pin damage.
Smart Images
Figure CN223039172U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of extension sockets, and particularly relates to a telescopic plug for an extension socket. Background Art
[0002] Existing extension sockets are divided into mobile or fixed types; the mobile type generally consists of a socket body, a cable, and a plug, so the socket body can be arranged movably as needed; the fixed type has pins provided on the socket body and directly inserts the pins into a wall socket; therefore, the fixed socket depends entirely on the connection between the pins and the socket for fixation. Since the panel of a general socket protrudes outward from the wall, after the pins on the back of the socket are fixed to the socket, only a small area of the back of the socket forms a small-area fit and support with the panel of the socket, and there are often gaps between most of the area of the back of the socket and the wall. During plugging and unplugging, the socket is likely to tilt and fall off due to uneven force. In addition, the socket and the plug are only connected by pins, and their instability exacerbates the possibility of pin damage.
[0003] In response to the above problems, the inventor applied for a patent on July 9, 2024, with the patent number 2024216205369 for an extension socket, which includes a socket body and an extension plug. The socket body has several extension sockets. The extension plug is provided with pins, and the pins are located at the rear side wall of the extension plug; the extension plug is provided with a telescopic member, and the telescopic direction of the telescopic member is the same as the horizontal direction of the rear side wall of the extension plug and perpendicular to the plugging and unplugging direction of the pins. The socket body is slidably connected to the end of the telescopic member, and the sliding direction between the socket body and the extension plug is towards the plugging and unplugging direction of the pins. The utility model has the advantage of improving the fixing and supporting effects between the socket and the wall.
[0004] In subsequent market feedback, the inventor found that the telescopic member lacks a sense of paragraph during telescoping, and its feel is poor. At the same time, when the telescopic member extends outward, its wire passing cavity is in an exposed state. Although it faces the wall, there are still potential safety hazards. In addition, when wiring the pins with screws, the pins and the wiring are directly fixed by screwing the screws with a rotary disc, which is prone to thread slipping. Summary of the Utility Model
[0005] Based on the above problems, the purpose of the present utility model is to provide a telescopic plug for an extension socket with good aesthetics, avoiding cable exposure, accurate positioning, and being safe and reliable.
[0006] In view of the above problems, the following technical solutions are provided: An extended socket telescopic plug, including an extended plug, a pin assembly is provided behind the extended plug, a telescopic member is provided on the side wall of the extended plug, a connecting portion is provided at the outer extending end of the telescopic member, a placement port is provided behind the extended plug and a wiring cavity is formed, a rear cover plate is provided at the placement port, and the pin assembly is located on the rear cover plate; a telescopic port connected to the placement port is provided on the side wall of the extended plug, the telescopic member is located in the telescopic port, and a through-line cavity is provided in a through-through manner between one end of the telescopic member with the connecting portion and the end far from the connecting portion; the telescopic member is provided with telescopic positioning balls, and a number of telescopic positioning pits adapted to the telescopic positioning balls are provided in the wiring cavity when the telescopic member expands and contracts.
[0007] The present utility model is further configured such that the telescopic member is provided with a wire management port connected to the through-line cavity, the wire management port is provided with a wire management cover plate, and the wire management cover plate is fixedly connected to the telescopic member by means of screws or buckles or adhesives or welding; when the telescopic member is fully extended, the through-line cavity remains in a state shielded by the wire management cover plate.
[0008] The present utility model is further configured such that the wire management port faces the rear cover plate and is opened in a direction from the end of the telescopic member far from the connecting portion towards the direction close to the connecting portion.
[0009] The present utility model is further configured such that closing partitions are provided on both sides of the through-line cavity, and the cross-section of the through-line cavity gradually narrows towards the connecting portion.
[0010] The present utility model is further configured such that a positioning block is further provided on the side of the telescopic member far from the connecting portion; a number of limiting blocks are provided in the wiring cavity at intervals in the telescopic direction, and when the telescopic member expands and contracts, the positioning block abuts against the limiting block to limit the extreme positions of its expansion and contraction.
[0011] The present utility model is further configured such that the positioning block is located on the side of the telescopic member far from the rear cover plate.
[0012] The present utility model is further configured such that guiding portions are provided on both sides of the telescopic member, guiding grooves adapted to the guiding portions are provided on both sides of the surface of the rear cover plate facing the wiring cavity, and when the telescopic member expands and contracts, the guiding portions slide in the guiding grooves.
[0013] The present utility model is further configured such that the placement port is provided with hooks, and the rear cover plate is fixed in the placement port by the hooks.
[0014] The present utility model is further configured such that the rear cover plate is provided with a pin port, the pin assembly includes a turntable rotatably provided with the rear cover plate in the pin port and pins extending rearward from the turntable behind the rear cover plate, a wiring post is provided at one end of the pin facing the wiring cavity; a pressure plate for covering and fixing the wiring post is further provided on the surface of the turntable facing the wiring cavity.
[0015] The present utility model is further configured such that a rotary positioning ball is provided on one side of the turntable facing the rear cover plate; a circumferential positioning pit is provided on one side of the rear cover plate facing the wiring cavity at intervals in the circumferential direction; when the pin assembly rotates, the rotary positioning ball is successively adapted to the circumferential positioning pit to perform circumferential positioning on the pin assembly.
[0016] Advantages of the present utility model:
[0017] 1. By providing the telescopic positioning ball and the telescopic positioning pit, a sense of paragraph can be generated in the telescopic stroke of the telescopic member, and the positioning effect can be effectively improved;
[0018] 2. The wire management cover plate is fixed by screws, so that the wire passing cavity will not be exposed when the telescopic member extends outwards, which can effectively block the entry of dust or liquid and improve the overall aesthetics;
[0019] 3. The closing partition is used to guide the coiling of the cable when the telescopic member expands and contracts, avoiding scratching the cable;
[0020] 4. The positioning block and the limiting block cooperate to limit the telescopic limit position of the telescopic member;
[0021] 5. The guiding parts on both sides of the telescopic member form a T-shaped block or a dovetail block; the guiding groove forms a T-shaped groove or a dovetail groove adapted to the T-shaped block or the dovetail block; the telescopic member can be less shaken through guiding;
[0022] 6. The pins include a neutral pin, a live pin or a neutral pin, a live pin and a ground pin; the wiring post is directly provided on the pin to ensure the stability of wiring; the pin is inserted into the turntable, and its axial degree of freedom is constrained by a pressure plate; the pressure plate is provided with a fixing post inserted into the turntable, and the two are in interference fit or adhesive fit; the pressure plate can also be fixed by means of snap-fastening, screws, adhesives or welding;
[0023] 7. The rotary positioning ball is adapted to the circumferential positioning pit to achieve a sense of paragraph when the pin assembly rotates. Description of the drawings
[0024] Figure 1 It is a three-dimensional structural schematic diagram of the telescopic member in the retracted state of the present utility model.
[0025] Figure 2 It is a three-dimensional structural schematic diagram of the first perspective of the telescopic member in the extended state of the present utility model.
[0026] Figure 3 It is a three-dimensional structural schematic diagram of the second perspective of the telescopic member in the extended state of the present utility model.
[0027] Figure 4 It is a three-dimensional structural schematic diagram of the first explosion of the first perspective of the present utility model.
[0028] Figure 5 This is the schematic diagram of the three-dimensional structure of the second perspective of the first explosion of the present utility model.
[0029] Figure 6 This is the schematic diagram of the three-dimensional structure of the first perspective of the second explosion of the present utility model.
[0030] Figure 7 This is the schematic diagram of the three-dimensional structure of the second perspective of the second explosion of the present utility model.
[0031] Figure 8 This is the schematic diagram of the three-dimensional structure of the first perspective of the third explosion of the present utility model.
[0032] Figure 9 This is the schematic diagram of the three-dimensional structure of the second perspective of the third explosion of the present utility model.
[0033] Figure 10 This is the schematic diagram of the three-dimensional structure of the first perspective of the fourth explosion of the present utility model.
[0034] Figure 11 This is the schematic diagram of the three-dimensional structure of the second perspective of the fourth explosion of the present utility model.
[0035] The meanings of the reference numerals in the figure: 10 - expansion plug; 11 - accommodation port; 111 - hook; 12 - wiring cavity; 121 - telescopic positioning pit; 122 - limiting block; 123 - rotary column; 13 - telescopic port; 20 - pin assembly; 21 - turntable; 211 - rotary positioning pin; 22 - pin; 221 - wiring post; 23 - pressure plate; 231 - fixing column; 30 - telescopic member; 31 - connecting portion; 32 - wire passing cavity; 321 - closing partition; 33 - telescopic positioning pin; 34 - wire management port; 35 - positioning block; 36 - guiding portion; 40 - rear cover plate; 41 - guiding groove; 42 - pin port; 43 - circumferential positioning pit; 50 - wire management cover plate. Detailed implementation manners
[0036] The following will further describe in detail the specific implementation manners of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.
[0037] Refer to Figures 1 to 11 , as Figures 1 to 11An extended plug with a telescopic plug as shown, including an extended plug 10, a pin assembly 20 is provided behind the extended plug 10, a telescopic member 30 is provided on the side wall of the extended plug 10, a connecting portion 31 is provided at the outer extending end of the telescopic member 30 (the connecting portion 31 is used to connect to a socket strip, which is a prior art), a placement opening 11 is provided behind the extended plug 10 and a wiring cavity 12 is formed, a rear cover plate 40 is provided at the placement opening 11, and the pin assembly 20 is located on the rear cover plate 40; a telescopic opening 13 connected to the placement opening 11 is provided on the side wall of the extended plug 10, the telescopic member 30 is located in the telescopic opening 13, and a through-wire cavity 32 is provided in a through-through setting between one end of the telescopic member 30 with the connecting portion 31 and the end far from the connecting portion 31; the telescopic member 30 is provided with a telescopic positioning ball 33, and a plurality of telescopic positioning pits 121 adapted to the telescopic positioning ball 33 are provided in the wiring cavity 12 when the telescopic member 30 expands and contracts.
[0038] In the above structure, by providing the telescopic positioning ball 33 and the telescopic positioning pits 121, a sense of paragraph can be generated in the telescopic stroke of the telescopic member 30, and the positioning effect can be effectively improved.
[0039] In this embodiment, the telescopic member 30 is provided with a wire management opening 34 connected to the through-wire cavity 32, a wire management cover plate 50 is provided at the wire management opening 34, and the wire management cover plate 50 is fixedly connected to the telescopic member 30 by means of screws or buckles or adhesives or welding; when the telescopic member 30 is fully extended, the through-wire cavity 32 remains in a state of being shielded by the wire management cover plate 50.
[0040] In the above structure, the wire management cover plate 50 is fixed by screws (screw holes are left in the figure, which is a prior fixing method and will not be specifically described), so that the through-wire cavity 32 will not be exposed when the telescopic member 30 extends outward, effectively blocking the entry of dust or liquid and improving the overall aesthetics.
[0041] In this embodiment, the wire management opening 34 faces the rear cover plate 40 and is opened from the end of the telescopic member 30 far from the connecting portion 31 towards the direction close to the connecting portion 31.
[0042] In the above structure, the wire management opening 34 can also be provided on the side of the telescopic member 30 facing away from the rear cover plate 40.
[0043] In this embodiment, closing partition plates 321 are provided on both sides of the through-wire cavity 32, and the cross-section of the through-wire cavity 32 gradually narrows towards the connecting portion 31.
[0044] In the above structure, the closing partition plates 321 are used to guide the coiling of the cable when the telescopic member 30 expands and contracts, avoiding scratching the cable.
[0045] In this embodiment, a positioning block 35 is further provided on the side of the telescopic member 30 away from the connecting portion 31; a limiting block 122 is provided in the wiring cavity 12 at intervals in the telescopic direction, and when the telescopic member 30 expands and contracts, the positioning block 35 abuts against the limiting block 122 to limit the extreme positions of its expansion and contraction.
[0046] In the above structure, the positioning block 35 and the limiting block 122 cooperate to limit the extreme positions of the expansion and contraction of the telescopic member 30.
[0047] In this embodiment, the positioning block 35 is located on the side of the telescopic member 30 away from the rear cover plate 40.
[0048] In the above structure, the position of the telescopic member 30 close to the bottom of the wiring cavity 12 is matched with the limiting block 122 to improve the overall rigidity and reduce the possibility of skew.
[0049] In this embodiment, guiding portions 36 are provided on both sides of the telescopic member 30, guiding grooves 41 adapted to the guiding portions 36 are provided on both sides of the surface of the rear cover plate 40 facing the wiring cavity 12, and when the telescopic member 30 expands and contracts, the guiding portions 36 are located in the guiding grooves 41 and slide therein.
[0050] In the above structure, the guiding portions 36 on both sides of the telescopic member 30 form a T-shaped block or a dovetail block; the guiding grooves 41 form a T-shaped groove or a dovetail groove adapted to the T-shaped block or the dovetail block; the telescopic member 30 can be less shaken through guiding.
[0051] In this embodiment, the accommodating opening 11 is provided with a catch 111, and the rear cover plate 40 is fixed in the accommodating opening 11 through the catch 111.
[0052] In the above structure, the rear cover plate 40 can also be fixed by means of screws, adhesives or welding (ultrasonic welding).
[0053] In this embodiment, the rear cover plate 40 is provided with a pin insertion opening 42, the pin assembly 20 includes a turntable 21 rotatably arranged in the pin insertion opening 42 and the rear cover plate 40 and a pin 22 extending rearward from the turntable 21, a wiring post 221 is provided at one end of the pin 22 facing the wiring cavity 12; a pressing plate 23 for covering and fixing the wiring post 221 is further provided on the surface of the turntable 21 facing the wiring cavity 12.
[0054] In the above structure, the pin 22 includes a neutral pin, a live pin or a neutral pin, a live pin and a ground pin; the wiring post 221 is directly provided on the pin 22 to ensure the stability of wiring; the pin 22 is inserted on the turntable 21, and its axial degree of freedom is restricted by the pressing plate 23; the pressing plate 23 is provided with a fixing post 231 inserted into the turntable 21, and the two are in interference fit or adhesive fit; the pressing plate 23 can also be fixed by means of snap fasteners, screws, adhesives or welding.
[0055] In this embodiment, a rotary positioning ball 211 is provided on one side of the turntable 21 facing the rear cover plate 40; on one side of the rear cover plate 40 facing the wiring cavity 12, circumferential positioning pits 43 are provided at intervals in the circumferential direction; when the pin 22 assembly 20 rotates, the rotary positioning ball 211 is successively adapted to the circumferential positioning pits 43 to perform circumferential positioning on the pin 22 assembly 20.
[0056] In the above structure, the rotary positioning ball 211 is adapted to the circumferential positioning pit 43 to achieve a sense of paragraph when the pin assembly 20 rotates.
[0057] In this embodiment, the wiring cavity 12 is provided with a rotary column 123 concentric with the turntable 21, and the turntable 21 is fixed to the rotary column 123 by screws to ensure its circumferential rotational freedom.
[0058] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made. These improvements and modifications made above should also be regarded as the protection scope of the present invention.
Claims
1. An expansion plug board telescopic plug, comprising an expansion plug, a pin assembly is provided at the rear of the expansion plug, a telescopic member is provided at the side wall of the expansion plug, and a connecting portion is provided at the extended end of the telescopic member, characterized in that: A receiving opening is provided at the back of the expansion plug to form a wiring cavity, the receiving opening is provided with a rear cover, and the pin assembly is located on the rear cover; a telescopic opening connected to the receiving opening is provided on the side wall of the expansion plug, the telescopic part is located in the telescopic opening, and the telescopic part is provided with a wire passing cavity arranged from one end of the connecting part to the end away from the connecting part; the telescopic part is provided with a telescopic positioning pin, and the wiring cavity is provided with a plurality of telescopic positioning pits that are adapted to the telescopic positioning pins when the telescopic part is telescoped.
2. The expansion board telescopic plug according to claim 1, characterized in that: The telescopic member is provided with a wire management port connected to the wire passage cavity, the wire management port is provided with a wire management cover plate, and the wire management cover plate is fixedly connected to the telescopic member by means of screws, buckles, gluing or welding; when the telescopic member is fully extended, the wire passage cavity remains covered by the wire management cover plate.
3. The expansion board telescopic plug according to claim 2, characterized in that: The cable management opening faces the rear cover plate and is opened from an end of the telescopic member away from the connecting portion toward a direction close to the connecting portion.
4. The expansion board telescopic plug according to claim 1, characterized in that: Closing partitions are arranged on both sides of the wire-passing cavity, and the cross section of the wire-passing cavity is gradually narrowed toward the connecting portion.
5. The expansion board telescopic plug according to claim 1, characterized in that: A positioning block is also provided on one side of the telescopic member away from the connecting portion; and limiting blocks are provided in the wiring cavity and are arranged at intervals in the telescopic direction. When the telescopic member is telescoped, the positioning block and the limiting block abut against each other to limit the extreme position of its telescopic extension.
6. The expansion board telescopic plug according to claim 5, characterized in that: The positioning block is located on a side of the telescopic member away from the rear cover plate.
7. An expansion board telescopic plug according to claim 1 or 5 or 6, characterized in that: The telescopic member is provided with guide parts on both sides, and the rear cover plate is provided with guide grooves adapted to the guide parts on both sides facing the wiring cavity. When the telescopic member is extended or retracted, the guide parts are located in the guide grooves and slide.
8. The expansion board telescopic plug according to claim 1, characterized in that: The receiving opening is provided with a hook, and the rear cover is fixed in the receiving opening by the hook.
9. The expansion board telescopic plug according to claim 1, characterized in that: The rear cover is provided with a pin opening, and the pin assembly includes a turntable rotatably arranged with the rear cover in the pin opening and a pin on the turntable extending outward toward the rear of the rear cover. A wiring post is provided at one end of the pin facing the wiring cavity; a pressure plate for covering and fixing the wiring post is also provided on one side of the turntable facing the wiring cavity.
10. The expansion board telescopic plug according to claim 9, characterized in that: The side of the turntable facing the rear cover is provided with a rotational positioning pin; the side of the rear cover facing the wiring cavity is provided with circumferential positioning pits spaced apart along the circumferential direction; when the pin assembly rotates, the rotational positioning pins sequentially adapt to the circumferential positioning pits to circumferentially position the pin assembly.