Connector plug with telescopic plugging part
By designing a retractable connector plug and a magnetic adsorption structure, the problem of fixed length of the insertion part of traditional connector plugs is solved, achieving flexible adaptability and stable connection of the plug, and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional connectors have a fixed plug length, which cannot adapt to the insertion length requirements of different devices, resulting in problems such as insertion that is too long or too short, affecting connection stability and service life.
Design a connector plug with a retractable mating part. The retractable and adjustable mating part is achieved through a cylindrical shell and a push component, and the connection stability is enhanced by a magnet, which can adapt to the interface depth requirements of different devices.
It enables flexible adjustment of the plug-in parts, avoids damage to precision components inside the equipment and poor connection, enhances the stability of the connection, and is suitable for various vibration conditions.
Smart Images

Figure CN224068020U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector plugs, and more specifically, it relates to a connector plug with a retractable insertion part. Background Technology
[0002] A connector plug is a device used to enable the transmission and connection of electrical signals, data or power between circuits, equipment or systems. It is widely used in many fields such as electronics, electrical engineering, and communications. Its performance and ease of use have an important impact on the normal operation and function of equipment.
[0003] Traditional connector plugs typically have a fixed-length insertion section. This means they cannot be adjusted for different needs. Furthermore, different devices have fundamentally different requirements for insertion length due to variations in function, structural design, interface standards, and application scenarios. For example, consumer electronics (such as ultra-thin laptops and portable instruments) often have shallow insertion depths to achieve a compact layout. A fixed-length insertion section might exceed the internal space limitations and fail to fully insert, potentially even squeezing circuit boards, cables, and other precision components during forced insertion, causing contact deformation or short circuits. In contrast, industrial control... Equipment such as control devices and power transmission devices need to carry high current, high voltage, or high frequency signals. Their sockets are often designed with deeper socket structures to ensure contact area and connection stability. If the plug insertion part is too short, it cannot form effective contact with the conductive terminals of the socket, resulting in increased contact resistance, aggravated heat generation, or even signal transmission interruption. On the other hand, when the connector plug is not in use, the fixed protruding insertion part is easily subjected to external forces such as collisions and squeezing, which can cause deformation and damage to the contact parts of the insertion part. This not only affects the normal use of the plug and shortens its service life, but may also cause circuit failures and unstable signal transmission in severe cases.
[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a connector plug with a retractable insertion part. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a connector plug with a retractable insertion part.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a connector plug with a retractable insertion part, comprising a connector plug housed in a cylindrical shell, the connector plug and its insertion part being able to extend and retract along the cylindrical shell to adjust its length inserted into the connector socket, an annular contact plate being fixedly connected to the surface of the cylindrical shell, and a through groove A being provided on the back of the cylindrical shell for the connecting wires on the connector plug to pass through.
[0007] Preferably, a magnet A is mounted on the surface of the annular contact plate, and a magnet B is mounted on the part of the connector socket that contacts the annular contact plate.
[0008] Preferably, a through groove B communicating with the inner cavity is provided on the outer wall of the cylindrical shell, and connecting plates are fixedly connected to both sides of the through groove B, and a pushing component for driving the connector plug to move along the cylindrical shell is installed on the connecting plates.
[0009] Preferably, the pushing assembly includes a bearing embedded and fixed inside the connecting plate, and a rotating rod is fixedly connected to the inner ring of the bearing. A lead screw is fixedly connected between the rotating rods, and a rod sleeve is threadedly connected to the outer wall of the lead screw. The bottom end of the rod sleeve is fixed to the outer surface of the wiring part of the connector plug through a vertical rod. A maintaining component for maintaining the linear movement of the rod sleeve is installed at the top of the connecting plate.
[0010] Preferably, the maintaining component includes a guide rail fixed to the top of the connecting plate, and the top of the rod sleeve is slidably connected to the guide rail by a slider.
[0011] Preferably, one end of one of the rotating rods is connected to the rotating wheel via a connecting rod.
[0012] Preferably, a fixing plate is fixedly connected to the side end of the connecting plate near the connecting rod, and the fixing plate is internally threaded with screws that can abut against the connecting rod, and the outer wall of the connecting rod is treated with wear-resistant material.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. When connecting different devices, this utility model allows the connector plug housed in the cylindrical housing, along with its insertion part, to extend or retract along the inside of the cylindrical housing according to the insertion length requirements of the device interface. By adjusting the length of the insertion part extending out of the housing, the insertion part can be adapted to the shallow insertion depth interface of consumer electronic devices or the deep insertion hole structure of industrial control equipment. This avoids problems such as the insertion part being too long and squeezing the precision components inside the device, or being too short and causing poor contact. When the connector plug is not in use, the insertion part can be retracted into the cylindrical housing, using the housing to protect the insertion part and reduce the risk of it being impacted or squeezed by external forces. This prevents the contact parts from being deformed and damaged, ensuring the normal use and service life of the plug, thus solving the problem that the insertion part of traditional connector plugs in the background art is usually a fixed length structure.
[0015] 2. When the rotating wheel is not needed, this utility model can rotate the screw clockwise to move the screw shank towards the connecting rod. Finally, the head of the screw abuts against the surface of the fixing plate, and the shank abuts against the outer wall of the connecting rod, thereby restricting the rotation of the rotating wheel and the lead screw. This also reinforces the position of the connector plug relative to the cylindrical shell and prevents it from shifting due to surrounding vibrations.
[0016] 3. When the connector plug and socket are connected, the magnetic attraction between magnet A and magnet B can significantly enhance the connection stability of the two, effectively resist external environmental interference such as vibration and shaking, and avoid problems such as poor contact, signal interruption or reduced conductivity caused by loose plug. It is especially suitable for vibration conditions such as industrial equipment and automotive electronics. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the specific structure of the top of this utility model;
[0020] Figure 3 This utility model Figure 2 Enlarged view of the local structure of A;
[0021] Figure 4 This is a schematic diagram of the specific structure of the back of this utility model;
[0022] Figure 5 This utility model Figure 4 Enlarged view of the B-section structure 2;
[0023] Figure 6 This is a schematic diagram of the connector plug connection structure in this utility model.
[0024] In the diagram: 1. Connector plug; 101. Insertion part; 102. Wiring part; 103. Connecting wire; 2. Cylindrical housing; 201. Through slot A; 3. Annular contact plate; 4. Magnet A; 5. Magnet B; 6. Through slot B; 7. Connecting plate; 8. Pushing assembly; 801. Bearing; 802. Rotating rod; 803. Lead screw; 804. Rod sleeve; 805. Guide rail; 806. Slider; 807. Vertical rod; 9. Connecting rod; 10. Fixing plate; 11. Screw; 12. Rotating wheel. Detailed Implementation
[0025] like Figure 1-6 As shown, this utility model provides a connector plug with a retractable insertion part, including a connector plug 1, which is housed in a cylindrical shell 2. The connector plug 1, together with its insertion part 101, can extend and retract along the cylindrical shell 2 to adjust its length when inserted into the connector socket. An annular contact plate 3 is fixedly connected to the surface of the cylindrical shell 2, and a through groove A201 is provided on the back of the cylindrical shell 2 for the connecting wire 103 on the connector plug 1 to pass through.
[0026] When connecting different devices, the connector plug 1, along with its insertion part 101, housed within the cylindrical housing 2 can extend or retract into the cylindrical housing 2 according to the insertion length requirements of the device interface. By adjusting the length of the insertion part 101 extending out of the housing 2, the insertion part 101 can be adapted to the shallow insertion depth interface of consumer electronic devices or the deep insertion hole structure of industrial control equipment, avoiding problems such as compression of internal precision components due to excessive insertion length or poor contact due to excessively short insertion. The connecting wire 103 passes through the through slot A201 on the back of the cylindrical housing 2, ensuring the connection between the connector plug 1 and the external circuit. When the connector plug 1 is not in use, the insertion part 101 can be retracted into the cylindrical housing 2, using the housing to protect the insertion part 101 and reduce the risk of external impact or compression, thereby preventing deformation and damage to the contact parts and ensuring the normal use and service life of the plug. The annular contact plate 3 can be pressed against the surface of the socket when the connector plug 1 is connected to the socket, and the reinforcing components of the connection can be installed on the annular contact plate 3.
[0027] The outer wall of the cylindrical shell 22 is provided with a through groove B66 communicating with its inner cavity. Connecting plates 77 are fixedly connected to both sides of the through groove B66, and a pushing component 88 is installed on the connecting plate 77 to drive the connector plug 11 to move along the cylindrical shell 22. The pushing component 88 pushes the connector plug 1 to move back and forth relative to the cylindrical shell 2, thereby realizing the purpose of the connector plug 1 and its insertion part 101 extending and entering along the cylindrical shell 2.
[0028] The present invention provides a specific structure for the pushing component 8: The pushing component 8 includes a bearing 801 embedded and fixed inside the connecting plate 7, and a rotating rod 802 is fixedly connected to the inner ring of the bearing 801. A lead screw 803 is fixedly connected between the rotating rods 802, and a rod sleeve 804 is threadedly connected to the outer wall of the lead screw 803. The bottom end of the rod sleeve 804 is fixed to the outer surface of the wiring part 102 of the connector plug 1 through a vertical rod 807. A maintaining component for maintaining the linear movement of the rod sleeve 804 is installed at the top of the connecting plate 7. The maintaining component includes a guide rail 805 fixed at the top of the connecting plate 7. The top end of the rod sleeve 804 is slidably connected to the guide rail 805 through a slider 806.
[0029] In use, rotating the wheel 12 clockwise or counterclockwise causes the connecting rod 9 to rotate, which in turn causes the rotating rod 802 to rotate. Simultaneously, the rotating rod 802 rotates the inner ring of the bearing 801, which in turn rotates along with its outer ring. This rotational support of the rotating rod 802 is achieved through the bearing 801 fixed to the connecting plate 7. Ultimately, the rotating rod 802 causes the lead screw 803 to rotate clockwise or counterclockwise, which in turn causes the rod sleeve 804 to move back and forth. The rod sleeve 804 then causes the slider 806 to move back and forth, sliding along the guide rail 805 to maintain the linear movement of the rod sleeve 804. The rod sleeve 804, through the vertical rod 807, linearly drives the connector plug 1 to move back and forth, allowing the connector plug 1, along with its insertion part 101, to extend and retract into the cylindrical housing 2.
[0030] Furthermore, a fixing plate 10 is fixedly connected to the side end of the connecting plate 7 near the connecting rod 9. The fixing plate 10 has a screw 11 that can abut against the connecting rod 9. The outer wall of the connecting rod 9 is treated with wear-resistant coating (the surface is sprayed with wear-resistant coating. After wear-resistant treatment, the surface hardness of the connecting rod 9 is increased and the compressive strength is enhanced. When the shank of the screw abuts against the outer wall of the connecting rod 9, the wear-resistant surface can better withstand the pressure applied by the screw and is less prone to indentation, deformation or wear).
[0031] When the rotating wheel 12 does not need to be rotated, the screw 11 is rotated clockwise, causing the shank of the screw 11 to move toward the connecting rod 9. Finally, the screw head of the screw 11 abuts against the surface of the fixing plate 10, and its shank abuts against the outer wall of the connecting rod 9, thereby restricting the rotation of the rotating wheel 12 and the lead screw 803, thus fixing the position of the connector plug 1 relative to the cylindrical housing 2 and preventing the position from shifting due to surrounding vibrations.
[0032] Furthermore, this invention also installs a magnet A4 on the surface of the annular contact plate 3, and a magnet B5 is attached to the surface of the annular contact plate 3 where the connector socket contacts the annular contact plate 3. When the connector plug 1 and the connector socket are connected, magnet A4 and magnet B5 are in contact. In this way, when the connector plug 1 and the socket are connected, the magnetic attraction of magnet A4 and magnet B5 can significantly enhance the connection stability of the two, effectively resist external environmental interference such as vibration and shaking, and avoid problems such as poor contact, signal interruption or decreased conductivity caused by loose plug 1. It is especially suitable for vibration conditions such as industrial equipment and automotive electronics.
[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A plug-in site scalable connector plug comprising a connector plug (1), characterized in that: The connector plug (1) is received in a cylindrical shell (2), the connector plug (1) can be extended into the cylindrical shell (2) along with the plug part (101) thereof to adjust the length of insertion into the connector socket, the surface of the cylindrical shell (2) is fixedly connected with an annular contact plate (3), and the back of the cylindrical shell (2) is provided with a through slot A (201) for the connecting wire (103) on the connector plug (1) to pass through.
2. A connector plug according to claim 1, characterized in that: The surface of the annular contact plate (3) is bonded with a magnet A (4), and the part, where the connector socket is in contact with the annular contact plate (3), is bonded with a magnet B (5).
3. A connector plug according to claim 1, wherein: The outer side wall of the cylindrical shell (2) is provided with a through slot B (6) in communication with the inner cavity thereof, the two sides of the through slot B (6) are fixedly connected with a connecting plate (7), and the connecting plate (7) is provided with a pushing assembly (8) for driving the connector plug (1) to move along the cylindrical shell (2).
4. A connector plug according to claim 3, wherein: The pushing assembly (8) comprises a bearing (801) embeddedly fixed in the inside of the connecting plate (7), the inner ring part of the bearing (801) is fixedly connected with a rotating rod (802), the rotating rods (802) are fixedly connected with a lead screw (803), the outer side wall of the lead screw (803) is threadedly connected with a rod sleeve (804), the bottom end of the rod sleeve (804) is fixed to the outer surface of the wire part (102) of the connector plug (1) through a vertical rod (807), and the top end of the connecting plate (7) is provided with a maintaining component for maintaining the linear movement of the rod sleeve (804).
5. A connector plug according to claim 4, wherein: The maintaining component comprises a guide rail (805) fixed to the top end of the connecting plate (7), and the top end of the rod sleeve (804) is slidingly connected in the guide rail (805) through a sliding block (806).
6. A connector plug according to claim 4, wherein: The end of one of the rotating rods (802) is connected with a rotating wheel (12) through a connecting rod (9).
7. A connector plug according to claim 6, characterized in that: The side end of the connecting plate (7) close to the connecting rod (9) is fixedly connected with a fixing plate (10), the inside of the fixing plate (10) is threadedly connected with a screw (11) capable of abutting against the connecting rod (9), and the outer side wall of the connecting rod (9) is wear-resistant treated.