Multi-hole electrostatic discharge plug

Abstract

The utility model relates to the technical field of static electricity row plug, especially to a multi-hole static electricity row plug, which comprises a body with a cavity inside and a cuboid cylinder structure as a whole, the body is formed by a back shell in the shape of a Chinese character and a face shell in the shape of a flat plate, a plurality of grounding assemblies are assembled on the outside of the face shell, used for plugging external grounding plugs and forming electrical connection, the inside of the face shell is provided with a conductive plate, the conductive plate is electrically connected with the plurality of grounding assemblies respectively and electrically connected with external grounding wires, so that synchronous grounding operation of the plurality of grounding plugs is realized through the cooperation of the grounding assemblies and the conductive plate. In summary, the utility model not only solves the problems of disorder, inefficiency and insecurity of the existing lean pipe workstation grounding system, but also realizes the deep integration of the grounding system and the lean pipe workstation through modularization and adaptability design, provides an efficient, stable and safe grounding solution for the precision manufacturing field, and has economic value and practical value.

Description

Technical Field

[0001] This utility model relates to the technical field of electrostatic power strips, and in particular to a multi-port electrostatic power strip. Background Technology

[0002] In precision manufacturing fields such as electronics manufacturing, medical devices, and automotive light industry, lean pipe workbenches have become the core operating platform for product testing, repair, and assembly due to their modular assembly and flexible adjustable specifications.

[0003] With the technological advancements in precision electronic products (such as semiconductor chips, micro-sensors, and high-precision instruments), the sensitivity of their internal electronic components to static electricity has significantly increased. The instantaneous high voltage (reaching thousands or even tens of thousands of volts) generated by electrostatic discharge can break down the insulation layer of components, damage circuit structures, and lead to product scrapping or performance failure. Therefore, throughout the entire process of production, testing, repair, and assembly of precision electronic products, a strict three-in-one grounding requirement must be implemented: personnel, tools, and products must all be grounded. Operators must wear grounding wristbands, testing tools (such as multimeters and oscilloscope probes) must be connected to grounding wires, and products to be processed must be placed on grounding trays. This grounding path conducts static charge to the earth, mitigating the hazards of static electricity at their source.

[0004] However, the existing grounding system of lean pipe workbenches has obvious technical defects and cannot meet the requirements for efficient and standardized grounding: There is no unified interface for grounding connections: The existing workbench does not have a dedicated centralized grounding plug panel. The grounding plugs of personnel, tools and products need to be connected to different grounding points (such as the grounding terminal of the workbench frame, the grounding socket of the wall, and the independent grounding stake). The interface types are not uniform (such as terminal type, plug type and clamp type), which requires workers to frequently change the connection method and the operation efficiency is low.

[0005] Disorganized grounding cables: Scattered grounding points cause multiple sets of grounding wires to cross and tangle around the workbench, which not only takes up work space, but also easily gets confused with power cables and equipment signal lines, increasing the risk of workers accidentally touching them; at the same time, messy cables make it difficult to quickly troubleshoot faults (such as grounding interruption, poor contact), prolonging equipment downtime.

[0006] Poor adaptability of grounding components: Most existing grounding terminals are fixed structures, which cannot flexibly adapt to the modular adjustment requirements of lean tube workbench. When the workbench is adjusted in size or layout according to production tasks, the original grounding point needs to be disassembled and reassembled, and it is difficult to connect stably with the lean tube frame. There are problems such as loose grounding and increased contact resistance, which affect the grounding effect.

[0007] Safety vulnerabilities exist: some grounding components lack insulation, and the grounding terminals are in direct contact with the metal frame of the workbench, which can easily lead to the conduction of static charge to the frame, causing the entire workbench to become electrified.

[0008] In summary, the existing grounding system of lean pipe workbench has become a key bottleneck restricting the efficiency and product yield of precision manufacturing. There is an urgent need for a grounding solution that can be centrally managed, highly adaptable, safe and reliable, in order to optimize the grounding operation process and improve the standardization and stability of the grounding system. Utility Model Content

[0009] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0010] This utility model provides a multi-port electrostatic power strip, including a body with an internal cavity and an overall rectangular cylindrical structure. The body is formed by a U-shaped back shell and a flat front shell enclosing each other. Multiple grounding components are assembled on the outer side of the front shell for connecting external grounding plugs and forming an electrical connection. A conductive plate is provided on the inner side of the front shell. The conductive plate is electrically connected to the multiple grounding components and to an external grounding wire, thereby achieving synchronous grounding operation of multiple grounding plugs through the cooperation of the grounding components and the conductive plate.

[0011] Furthermore: the grounding component is provided with an electrostatic terminal, and the faceplate is provided with a first through hole. The electrostatic terminal passes through the first through hole, with one end remaining on the outside of the faceplate and the other end passing through the first through hole and extending into the inside of the faceplate, so that the electrostatic terminal and the faceplate are in an insulating state.

[0012] Furthermore: a first insulating ring is fitted at the end of the electrostatic terminal that is placed on the outside of the face shell, so that the electrostatic terminal is insulated from the outside of the face shell; a second insulating ring is fitted at the part of the electrostatic terminal that passes through the first through hole, so that the electrostatic terminal is insulated from the inner wall of the first through hole of the face shell.

[0013] Furthermore, the grounding assembly is also provided with an insulating gasket and a locking nut. The insulating gasket and the locking nut are respectively sleeved on the end of the electrostatic terminal that extends into the inner side of the housing, and the insulating gasket is placed between the locking nut and the housing, thereby forming an insulating state between the locking nut and the housing.

[0014] Furthermore, the conductive plate has a second through hole at the position corresponding to the grounding component, so that the conductive plate is sleeved on the electrostatic terminal through the second through hole, and the conductive plate is positioned between the locking nut and the insulating washer.

[0015] Furthermore, the outer wall of the back shell is provided with a connecting structure, which is used to detachably engage with an adapter to install the body onto the lean pipe of the external lean pipe workbench.

[0016] Furthermore, the adapter structure is configured as a dovetail guide rail, which is used to cooperate with the dovetail groove of the adapter to form a detachable fixed connection.

[0017] Compared with the prior art, the beneficial effects of this utility model are: (a) Improve the efficiency of grounding operations and optimize the work process. Achieve centralized grounding management: Multiple grounding components are integrated into a flat panel to form a unified grounding plug panel. Grounding plugs for personnel, tools, and products can be centrally inserted into the electrostatic terminals of the panel (the plug-in design is compatible with mainstream grounding plugs), eliminating the need to search for grounding points separately. The operation steps are simplified by more than 70%, significantly reducing the time workers spend on grounding connections.

[0018] Reduced cable management costs: The centralized plug-in method allows multiple grounding wires to be arranged in an orderly manner, avoiding cross-tangling. At the same time, the rectangular cylindrical structure of the main body (with an internal cavity to house the conductive plate and part of the cable) reduces the exposed length of the cable, increasing the utilization rate of the workspace around the workbench by 30%. In addition, the unified interface type facilitates quick identification of grounding cables, reducing the troubleshooting time to 1 / 3 of the original time.

[0019] (ii) Enhance the stability of the grounding system and ensure the effectiveness of electrostatic protection. Ensure low-resistance and stable grounding: A reliable electrical connection between the grounding component and the external grounding wire is achieved through an integrated conductive path of "static terminal - locking nut - conductive plate - grounding terminal". The static terminal is made of metal (low resistivity), the locking nut is in direct contact with the conductive plate, and the tightness of the threaded connection ensures that the overall grounding contact resistance is ≤0.1Ω, which meets the requirements of GB / T 14472-2017 "Guidelines for Electrostatic Discharge Protection of Electronic Equipment".

[0020] Double protection against loosening and insulation: The grounding assembly is equipped with a first insulating ring, a second insulating ring, and an insulating gasket, which respectively achieve insulation isolation between the electrostatic terminal and the outer side of the housing, the inner side wall of the first through hole, and the locking nut and the housing, preventing electrostatic charge from being conducted to the workbench frame; at the same time, the locking nut secures the electrostatic terminal through its threaded structure, and together with the axial pressure of the insulating gasket, it can effectively prevent the terminal from loosening due to vibration during long-term use, reducing the grounding connection failure rate by more than 90%.

[0021] (III) Adapt to the characteristics of lean pipe workbench and improve scenario flexibility Modular and quick installation: The outer wall of the back shell is equipped with a dovetail guide rail type adapter structure, which can be directly adapted to the standard adapter of lean pipe. Without additional drilling or welding, the main body can be quickly installed on the lean pipe frame. The installation process only requires 1-2 people to operate and takes ≤5 minutes, which is 5 times more efficient than the traditional grounding terminal disassembly and assembly.

[0022] Multi-directional installation compatibility: The back wall, top wall, and bottom wall of the back cover are all reserved with transition structures, which can be selected according to the layout of the lean pipe workbench (such as single-sided operation, double-sided operation, multi-layer rack type), adapting to the needs of workbench size adjustment and layout change, without the need to redesign the grounding system, and the compatibility covers more than 95% of lean pipe workbench application scenarios.

[0023] (iv) Ensure operational safety and reduce production risks Eliminate the risk of electric shock and static electricity: The full-process insulation design (first insulation ring, second insulation ring, insulation gasket) prevents the static terminals from conducting electricity with the workbench frame, avoiding the workbench from becoming electrified; at the same time, the locking structure of the grounding component ensures that the plug will not fall off accidentally, eliminating the risk of electrostatic discharge caused by grounding interruption, reducing the product's electrostatic damage rate by more than 80%.

[0024] Compliant with industry safety standards: The overall structure meets the safety design requirements of IEC 61340 "Electrostatic Control Standard" and lean pipe workbench. The materials and dimensions of components such as grounding terminals and conductive plates meet industrial-grade usage specifications and can be directly integrated into existing production lines without the need for large-scale modifications to the workbench, thus reducing safety compliance costs.

[0025] In summary, this utility model not only solves the problems of messiness, inefficiency, and safety in existing lean pipe workbench grounding systems, but also achieves deep integration of the grounding system with the lean pipe workbench through modular and adaptable design, providing an efficient, stable, and safe grounding solution for the precision manufacturing field, which has both economic and practical value.

[0026] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the back shell and dovetail guide rail of this utility model; Figure 3 This is a schematic diagram of the grounding component and the housing of this utility model; Figure 4This is a schematic diagram of the grounding component, conductive plate, and shell of this utility model in a separated state.

[0029] The reference numerals and names in the figure are as follows: 10 Body; 11 Back shell; 12 Adapter structure; 13 Dovetail rail; 14 Front shell; 15 First through hole; 20 Grounding assembly; 21 Static terminal; 22 First insulating ring; 23 Second insulating ring; 24 Insulating gasket; 25 Locking nut; 30 Conductive plate; 31 Second through hole. Detailed Implementation

[0030] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] Please see Figures 1 to 4 In this embodiment of the present invention, a multi-port electrostatic power strip includes a body 10 with an internal cavity and an overall rectangular cylindrical structure. The body 10 is formed by a U-shaped back shell 11 and a flat front shell 14 enclosing each other. Multiple grounding components 20 are mounted on the outer side of the front shell 14 for connecting external grounding plugs and forming an electrical connection. A conductive plate 30 is provided on the inner side of the front shell 14. The conductive plate 30 forms an electrical connection with the multiple grounding components 20 and an external grounding wire, thereby achieving synchronous grounding operation of multiple grounding plugs through the joint cooperation of the grounding components 20 and the conductive plate 30.

[0032] Specifically, the lean pipe workbench is a workbench assembled from 28mm diameter plastic-coated pipes (lean pipes) and connectors, combined with a worktable panel, power strip, and other components. Also known as a lean pipe workbench or CELL workbench, it is suitable for testing, repair, and product assembly in fields such as electronics manufacturing, medical devices, and automotive light industry. In the production, testing, repair, or assembly of some precision electronic products, grounding is required for personnel, tools, and products to prevent electrostatic damage to instruments or electronic products. However, the existing lean pipe workbench has relatively messy connections between the grounding wire and the anti-static wire, lacking a standardized connector panel, which hinders quick connection by workers. Therefore, improvement is necessary.

[0033] This invention features a rectangular cylindrical body 10 with a conductive plate 30 uniformly installed within its internal cavity. One side of the conductive plate 30 has a grounding terminal, which is fixedly connected to an external grounding wire via a conductor. This ensures that electrostatic charge can be conducted to the external grounding wire through the conductive plate 30 and the grounding terminal, achieving grounding functionality. Simultaneously, a flat faceplate 14 uniformly mounts multiple grounding components 20, allowing workers to connect multiple external grounding plugs to the faceplate 14 in a unified manner, forming a standardized electrostatic connection panel. This improves worker efficiency, organizes connection cables, avoids a cluttered workbench, and further enhances work productivity.

[0034] like Figures 1 to 3 As shown, preferably, the grounding component 20 is provided with an electrostatic terminal 21, and the face shell 14 is provided with a first through hole 15. The electrostatic terminal 21 passes through the first through hole 15, with one end remaining outside the face shell 14 and the other end passing through the first through hole 15 and extending into the inside of the face shell 14, so that the electrostatic terminal 21 and the face shell 14 form an insulating state.

[0035] Specifically, in order to install multiple electrostatic terminals 21, it is preferable to open multiple first through holes 15 on the housing 14, so that each electrostatic terminal 21 is respectively inserted into one of the first through holes 15. In order to prevent the electrostatic charge conducted by the electrostatic terminals 21 from flowing to the housing 14, causing the housing 14 to become charged and affecting safety, it is preferable to configure the electrostatic terminals 21 and the housing 14 in an insulated state.

[0036] Secondly, to ensure conductivity, the main body of the electrostatic terminal 21 is made of a conductive metal, and the axial portion of the metal part of the electrostatic terminal 21 is configured as a hollow structure to form a socket, allowing an external grounding plug to be inserted into the socket, thereby forming an electrical connection with the electrostatic terminal 21. like Figures 2 to 3 As shown, preferably, the end of the electrostatic terminal 21 that is located on the outside of the face shell 14 is fitted with a first insulating ring 22, so that the electrostatic terminal 21 is insulated from the outside of the face shell 14; the part of the electrostatic terminal 21 that passes through the first through hole 15 is fitted with a second insulating ring 23, so that the electrostatic terminal 21 is insulated from the inner wall of the first through hole 15 of the face shell 14.

[0037] Specifically, since the electrostatic terminal 21 needs to be conductive, it must be made of a conductive metal material, such as copper or aluminum. To improve structural strength and facilitate production, the front shell 14 and back shell 11 are also typically made of metal, such as aluminum alloy. Therefore, to prevent electrostatic conduction between the electrostatic terminal 21 and the front shell 14, a first insulating ring 22 and a second insulating ring 23 are preferably provided, which are respectively fitted onto the electrostatic terminal 21, creating an insulating state between the electrostatic terminal 21 and the outer side of the front shell 14 or the inner wall of the first through hole 15.

[0038] Secondly, the first insulating ring 22 and the second insulating ring 23 can be directly injection molded onto the static terminal 21 using an in-mold injection molding process, or they can be made into independent insulating rings using a plastic injection molding process and fitted onto the static terminal 21 during production and assembly.

[0039] like Figures 2 to 4 As shown, preferably, the grounding assembly 20 is further provided with an insulating gasket 24 and a locking nut 25. The insulating gasket 24 and the locking nut 25 are respectively sleeved on one end of the electrostatic terminal 21 that extends into the inner side of the housing 14, and the insulating gasket 24 is positioned between the locking nut 25 and the housing 14, thereby forming an insulating state between the locking nut 25 and the housing 14.

[0040] Specifically, to securely fix the grounding assembly 20 to the housing 14, a locking nut 25 is preferably provided, and it is made of the same conductive metal material as the electrostatic terminal 21. A threaded structure is provided at the end of the electrostatic terminal 21 that extends into the inner side of the housing 14, so that the locking nut 25 is fixed to the electrostatic terminal 21 through the threaded structure. An insulating gasket 24 is disposed between the locking nut 25 and the housing 14, which not only creates insulation between the locking nut 25 and the housing 14, but also allows the locking nut 25 to exert axial pressure on the insulating gasket 24, thus securing the entire grounding assembly 20 to the housing 14 and preventing the electrostatic terminal 21 from loosening axially.

[0041] like Figure 4 As shown, preferably, the conductive plate 30 has a second through hole 31 at the position corresponding to the grounding component 20, so that the conductive plate 30 is sleeved on the electrostatic terminal 21 through the second through hole 31, and the conductive plate 30 is positioned between the locking nut 25 and the insulating gasket 24.

[0042] Specifically, to install the conductive plate 30 onto the grounding assembly 20, a second through hole 31 is preferably formed on the conductive plate 30 at the location corresponding to the first through hole 15 of the housing 14, allowing the second through hole 31 to be directly fitted onto the electrostatic terminal 21, and then the conductive plate 30 is locked in place using a locking nut 25. An electrical connection is formed through the direct contact between the conductive plate 30 and the locking nut 25, and simultaneously, an electrical connection is also formed between the threaded connection between the locking nut 25 and the metal material of the electrostatic terminal 21, thus establishing an electrical connection between the conductive plate 30 and the electrostatic terminal 21 to discharge static electricity. To install the conductive plate 30 onto the grounding assembly 20, a second through hole 31 is formed on the conductive plate 30 at the location corresponding to the electrostatic terminal 21 (i.e., the location corresponding to the first through hole 15 of the housing 14). The conductive plate 30 is fitted onto the electrostatic terminal 21 through the second through hole 31 and is located between the locking nut 25 and the insulating washer 24, and is fixed by the locking force of the locking nut 25.

[0043] Secondly, the grounding component 20 adopts a detachable design (the electrostatic terminal 21 can be replaced by loosening the locking nut 25), and the conductive plate 30 is installed through the second through hole 31. During later maintenance, it is not necessary to disassemble the entire body 10. The replacement time for a single component is ≤10 minutes, reducing maintenance costs by 40%. The locking nut 25, electrostatic terminal 21, and conductive plate 30 are all made of conductive metal, and processing requires no special equipment, making them compatible with existing hardware production lines. Manufacturing costs are reduced by 20%-30% compared to customized grounding systems.

[0044] like Figures 1 to 2 As shown, preferably, the outer side wall of the back shell 11 is provided with a transition structure 12, which is used to detachably engage with an adapter to install the body 10 onto the lean pipe of the external lean pipe workbench.

[0045] Specifically, to make the combination between the electrostatic power strip and the external lean pipe workbench more convenient, a transition structure 12 is preferably provided on the outer side wall of the back shell 11. The transition structure 12 can directly use the existing adapter (standard parts adapted to lean pipes) to install the electrostatic power strip on the existing lean pipe workbench, thereby realizing the rapid installation of the electrostatic power strip and optimizing the rapid layout and assembly efficiency of the electrostatic power strip in lean pipe assembly.

[0046] Secondly, to adapt to diverse installation scenarios, transition structures 12 are provided on the three side walls of the back shell 11 (excluding the side where the front shell 14 is assembled), allowing for selection of the installation orientation based on the lean pipe layout. Different transition structures 12 on different side walls can be combined for different installation needs, expanding its adaptability to various installation scenarios.

[0047] like Figure 2 As shown, preferably, the adapter structure 12 is configured as a dovetail guide rail 13, which is used to cooperate with the dovetail groove of the adapter to form a detachable fixed connection.

[0048] Specifically, in order to install the electrostatic power strip on the lean pipe, it is preferable to set a corresponding dovetail guide rail 13 on the adapter structure 12, so that the dovetail groove of the existing adapter can be directly clamped to the dovetail guide rail 13, realizing quick installation or disassembly.

[0049] In addition, end caps are provided at both ends of the main body 10 to seal the internal cavity of the main body 10 and improve safety. Since the back shell 11 and the front shell 14 of the main body 10 are both made of metal, the end caps are preferably made of plastic to facilitate cable routing. Cable guide holes (pre-reserved cable routing channels) are provided on the end caps so that grounding wires and other cables can be routed through the cable guide holes into the internal cavity of the electrostatic power strip and form an electrical connection with the conductive plate 30.

[0050] Secondly, in some locations, there may be situations where cables are run through the cable guide holes on one end of the electrostatic power strip, while cables are not needed on the other end. Therefore, a cable guide baffle (a cover plate that blocks the cable guide hole, made of the same material as the end cap) can be installed to shield the cable guide hole, protecting the internal cables of the electrostatic power strip and preventing other objects from entering the electrostatic power strip through the cable guide hole.

[0051] Secondly, the through-hole baffle is connected to the edge of the wire hole by several thin plastic connecting ribs. These connecting ribs are small in diameter (usually only 0.5-2mm) and thin, making them the weakest part of the structure. The connecting ribs are manufactured using injection molding, allowing the baffle and cover to be molded as a single piece without additional assembly; this is a "pre-designed destructible structure." Initial state: The baffle is firmly connected to the edge of the wire hole via the connecting ribs, forming a closed structure that protects the space inside the hole (e.g., preventing dust and foreign objects from entering) or maintains the integrity of the cover. Removal mechanism: When the wire hole needs to be used, external force (such as manual prying or tool manipulation) is applied to the baffle. Due to their low strength, the connecting ribs break, separating the baffle from the cover and opening the wire hole.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A multi-port electrostatic power strip, characterized in that, The device includes a body (10) with an internal cavity and an overall rectangular cylindrical structure. The body (10) is formed by a U-shaped back shell (11) and a flat front shell (14) surrounding each other. Multiple grounding components (20) are mounted on the outside of the front shell (14) for connecting external grounding plugs and forming an electrical connection. A conductive plate (30) is provided on the inside of the front shell (14). The conductive plate (30) forms an electrical connection with the multiple grounding components (20) and an external grounding wire, thereby achieving synchronous grounding operation of multiple grounding plugs through the cooperation of the grounding components (20) and the conductive plate (30).

2. The multi-port electrostatic power strip according to claim 1, characterized in that, The grounding component (20) is provided with an electrostatic terminal (21), and the face shell (14) is provided with a first through hole (15). The electrostatic terminal (21) passes through the first through hole (15), with one end left outside the face shell (14) and the other end passing through the first through hole (15) and extending into the inside of the face shell (14), so that the electrostatic terminal (21) and the face shell (14) form an insulating state.

3. The multi-port electrostatic power strip according to claim 2, characterized in that, The electrostatic terminal (21) is provided with a first insulating ring (22) at one end outside the shell (14), so that the electrostatic terminal (21) is insulated from the outside of the shell (14); the part of the electrostatic terminal (21) that passes through the first through hole (15) is provided with a second insulating ring (23), so that the electrostatic terminal (21) is insulated from the inner wall of the first through hole (15) of the shell (14).

4. The multi-port electrostatic power strip according to claim 3, characterized in that, The grounding assembly (20) is also provided with an insulating gasket (24) and a locking nut (25). The insulating gasket (24) and the locking nut (25) are respectively sleeved on one end of the electrostatic terminal (21) extending into the inner side of the shell (14), and the insulating gasket (24) is positioned between the locking nut (25) and the shell (14), thereby forming an insulating state between the locking nut (25) and the shell (14).

5. A multi-port electrostatic power strip according to claim 4, characterized in that, The conductive plate (30) has a second through hole (31) at the position corresponding to the grounding component (20), so that the conductive plate (30) is sleeved on the electrostatic terminal (21) through the second through hole (31), and the conductive plate (30) is positioned between the locking nut (25) and the insulating gasket (24).

6. The multi-port electrostatic power strip according to claim 1, characterized in that, The outer wall of the back shell (11) is provided with a transition structure (12), which is used to detachably cooperate with the adapter to install the body (10) onto the lean pipe of the external lean pipe workbench.

7. A multi-port electrostatic power strip according to claim 6, characterized in that, The adapter structure (12) is configured as a dovetail guide rail (13), which is used to cooperate with the dovetail groove of the adapter to form a detachable fixed connection.

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