High strength floor metal socket

Abstract

The application relates to the technical field of sockets, in particular to a high-strength ground metal socket which comprises a wire box, a socket module, a positioning assembly, a limiting assembly and an unlocking assembly; the socket module is movably connected to the inner wall of the wire box, the positioning assembly is arranged on the upper end inner wall of the wire box and is used for positioning and supporting the socket module when the socket module is turned over to a working state; the limiting assembly is installed on the inner wall of the wire box and is rotatably connected to one side of the socket module; the unlocking assembly is arranged on the socket module and is used for releasing the positioning of the positioning assembly to make the socket module turn over; when the socket module is in the working state, the limiting assembly provides support for the socket module; when the socket module is in a storage state, the limiting assembly provides a downward pressing force for the socket module; the elastic pre-tightening and rigid locking hinged mechanism and the triangular support frame effectively inhibit vibration; meanwhile, the double locking mechanism of strong locking and normal pressure is adopted to ensure the safety and sealing of the closed state.

Description

Technical Field

[0001] This invention relates to the field of socket technology, and more particularly to a high-strength floor metal socket. Background Technology

[0002] In modern industrial production, large equipment maintenance, and public facility operation, continuous or intermittent vibration environments are widespread. These vibrations are not accidental or extreme events, but rather mechanical environments generated during normal equipment operation or process, conforming to design expectations, and possessing specific frequencies and amplitudes. These vibrations are reasonable and typical characteristics of industrial scenarios. For example, on the assembly and testing lines of automobiles and construction machinery, the movement and positioning of vehicles or components on the assembly line generates continuous, slight vibrations; in the center of large factory workshops, the operation of overhead cranes and the passage of heavy material handling equipment (such as forklifts and flatbed trucks) transmit regular vibrations through their power systems in contact with the ground; inside rail transit carriages and maintenance depots, the starting and stopping of trains, the operation of air conditioning units, passenger movement, and the operation of auxiliary equipment during static testing all induce specific frequency vibrations in the carriage floor or warehouse floor.

[0003] Under these reasonable and typical vibration environments, the reliability of ground-based power supply devices that provide power to mobile or temporary electrical equipment (such as handheld power tools, testing instruments, welding equipment, temporary lighting, etc.) faces severe challenges. Currently, ordinary ground sockets or industrial sockets commonly used in such scenarios are designed and designed primarily for static or low-disturbance environments. When dealing with the aforementioned reasonable continuous vibrations, they reveal the following key technical defects: 1. Insufficient connection reliability: Vibration causes continuous micro-amplitude relative movement (fretting wear) between the conductive sleeve inside the socket and the pins of the equipment plug. Under long-term effects, oxidation at the contact points intensifies, and contact resistance steadily increases. This not only causes abnormal heating and increased energy consumption but may also lead to momentary arcing due to poor contact, interfering with the operation of precision equipment and even igniting surrounding flammable materials. In workshop environments with oil stains and dust, the risk of electrical sparks is particularly prominent.

[0004] 2. Rapid Degradation of Sealing Performance: Most sockets rely on compressed rubber gaskets for dust and water resistance. Under reasonable and continuous vibration, the sealing gaskets are subjected to alternating stress, which can easily lead to stress relaxation or plastic deformation, resulting in a decrease in compression force and the appearance of microscopic gaps at the sealing interface. Especially under the combined effects of temperature changes, the seal failure is accelerated, making it unable to effectively resist water washing from the workshop floor, oil splashes, or dust, seriously affecting the safety and lifespan of internal electrical components.

[0005] Therefore, in a wide range of application scenarios where there is reasonable vibration environment, such as automobile manufacturing workshops, heavy machinery assembly areas, rail transit vehicle depots, logistics transfer centers, and the vicinity of large pumping stations, this invention provides a high-strength ground metal socket to maintain the ultimate stability of electrical connections under continuous vibration; ensure the vibration resistance and anti-loosening of all mechanical fastening and locking mechanisms; and achieve long-term reliability of the sealing structure in vibration environments. Summary of the Invention

[0006] To address the aforementioned problems, the present invention provides a high-strength ground metal socket, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, this application provides the following technical solution: The present invention provides a high-strength ground metal socket, comprising a junction box, a socket module, a positioning component, a limiting component, and an unlocking component. The junction box is embedded in the ground area via concrete, and wire holes are pre-set on its four sides and bottom sidewalls. A stepped groove is provided on the upper surface of the junction box. The socket module is detachably connected to the inner wall of the junction box and can be flipped from a retracted state to a working state to expose the socket. The positioning component is disposed on the upper inner wall of the junction box for positioning and supporting the socket module when it is flipped to the working state. The limiting component is bolted to the inner wall of the junction box and rotatably connected to one side of the socket module. The unlocking component is disposed on the socket module for releasing the positioning component to allow the socket module to flip.

[0008] When the socket module is in the working state, the limiting component provides support for it; when the socket module is in the retracted state, the limiting component provides downward clamping force for it.

[0009] According to an advantageous embodiment, the socket module has an overall right-angled triangular structure, and its bottom horizontal plane and the limiting component together form a mechanical triangular support system in the working state.

[0010] According to an advantageous embodiment, the socket module is provided with a flame-retardant PCB panel, three sides of which protrude outward from the surface of the socket module, and flame-retardant sealing strips are embedded in the lower end faces of the three protruding sides of the flame-retardant PCB panel; when the socket module is in the retracted state, the flame-retardant sealing strips are sealed and engaged with the stepped groove on the upper end face of the junction box.

[0011] According to an advantageous embodiment, the sealing surface of the flame-retardant sealing strip is provided with at least one raised pressure strip, and the flame-retardant sealing strip corresponding to the raised pressure strip has an air cavity inside. The outer wall of the raised pressure strip and the air cavity are connected by a plurality of sets of air holes arranged along its length direction, and each set of air holes is symmetrically arranged in an inclined manner.

[0012] According to an advantageous embodiment, the two outer side walls of the socket module are symmetrically provided with arc-shaped grooves, and the lower end of the arc-shaped grooves is provided with positioning pin holes. The positioning component includes a fixing post disposed on the inner wall of the wire box corresponding to the position of the arc-shaped groove. A pin sleeve is sleeved on the outer wall of the fixing post, and a positioning post is connected between the pin sleeve and the fixing post. A movable spring is sleeved on the outer wall of the positioning post. When the socket module is flipped to the working state, the end of the pin sleeve is engaged in the positioning pin hole under the action of the movable spring.

[0013] According to an advantageous embodiment, the socket module has a positioning groove at the lower end of one side wall of the socket position; the positioning component further includes a multi-stage telescopic kit disposed on the inner wall of the wire box corresponding to the positioning groove position; the multi-stage telescopic kit consists of multiple sleeves interlocking and a spring connecting two adjacent sleeves; the unlocking component includes a movable latch limited on the socket module by a spring and a guide rod, the movable latch having a locking groove; when the socket module is in the retracted state, the multi-stage telescopic kit engages with the locking groove to lock; when the socket module is in the working state, the multi-stage telescopic kit engages with the positioning groove.

[0014] According to an advantageous embodiment, the limiting component includes a support fixedly connected to the inner wall of the junction box. A bolt cap is rotatably mounted on the support, and a bolt post is threadedly connected to the inside of the bolt cap. The bolt post is movably sleeved on the support. An L-shaped retainer is movably mounted on the outer wall of the bolt post, and ball bearings are evenly distributed on the side of the L-shaped retainer that is in contact with the inner wall of the junction box. A compression spring is sleeved on the outer wall of the bolt post located between the L-shaped retainer and the support, and the compression spring is always in a compressed state. A movable wheel is rotatably mounted inside the L-shaped retainer via a torsion spring. A hinge rod is rotatably connected to the eccentric position of the movable wheel, and the other end of the hinge rod is rotatably connected to the lower end face of the socket module. A locking element is also provided at the lower end of the L-shaped retainer, which cooperates with the inner wall of the junction box. A telescopic element is provided on the movable wheel, and the telescopic element cooperates with the locking element.

[0015] According to an advantageous embodiment, the sidewall of the socket module is symmetrically provided with connectors via springs. The connectors are provided with connecting posts and pressing posts. The socket module is rotatably mounted on the inner wall of the junction box via the connecting posts, and the outer wall of the connecting posts is fitted with torsion springs that give the socket module a flip-open tendency. By pressing the pressing posts, the connecting posts can be retracted to remove the socket module from the junction box.

[0016] According to an advantageous embodiment, a flame-retardant sealing strip is also provided on one side of the socket module, and the flame-retardant sealing strip connected to the socket module does not correspond to the three protruding sides of the flame-retardant PCB panel.

[0017] The locking component includes a locking rod movably mounted at the lower end of an L-shaped card holder. The inner wall of the junction box has a locking hole that mates with the locking rod. The locking rod is limited by two guide rods fixedly connected to the L-shaped card holder, and an auxiliary spring is also sleeved on the guide rod. The auxiliary spring ensures that the plug section of the locking rod is always in close contact with the inner wall of the junction box. The outer wall of the locking rod also has an arc-shaped stepped guide groove that mates with a telescopic component.

[0018] Compared with the prior art, the high-strength ground metal socket provided by the embodiments of the present invention has the following beneficial effects: 1. The present invention effectively suppresses the shaking of the socket module through the anti-vibration hinge design of "elastic pre-tightening + rigid locking"; when the socket module is opened, the bottom surface of its right-angled triangular structure, together with the hinge rod of the limiting component and the inner wall of the junction box, forms a stable triangular support frame, which can convert vibration energy into structural internal force, ensuring that the electrical equipment and the socket module are firmly connected after plugging in; when closed, a dual locking mechanism of "strong locking + constant pressure" is adopted to prevent the module from being accidentally opened or loosened during vibration, and to fully protect the electrical connection and mechanical safety.

[0019] 2. This invention achieves long-lasting, high-level sealing protection under vibration and harsh environments, ensuring the safety and lifespan of internal electrical components. First, it employs a composite sealing scheme consisting of the overlapping seal of the protruding part of the flame-retardant PCB panel and the stepped groove of the junction box, and the compression seal of the flame-retardant sealing strip. This multi-path, multi-interface sealing design ensures that even if a single sealing path develops microscopic gaps due to vibration, other paths can still provide an effective barrier. Second, the flame-retardant sealing strip design, with its raised pressure strip, air cavity, and inclined air hole structure, not only achieves contact of multiple sealing lines when closed under pressure, but also removes tiny particles (such as dust and sand) that may affect the sealing effect by blowing away the gas at the moment of compression. This synchronous "cleaning-compression" process ensures a clean and reliable initial sealing interface every time it closes. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of this high-strength floor metal socket.

[0021] Figure 2 A cross-sectional view showing the interior of the junction box with the socket module retracted.

[0022] Figure 3 This is a cross-sectional view of the socket module in its working state.

[0023] Figure 4 For the present invention Figure 2 A magnified view of part A.

[0024] Figure 5 For the present invention Figure 3 A magnified view of section B.

[0025] Figure 6 This is a partial cross-sectional view showing the fit between the pin sleeve and the locating pin hole of the present invention.

[0026] Figure 7 This is a side view of the L-shaped card holder and its internal movable wheels according to the present invention.

[0027] Figure 8 This is a cross-sectional view of the connector of the present invention.

[0028] Figure 9 This is another structural diagram of the flame-retardant sealing strip of the present invention.

[0029] Figure 10 For the present invention Figure 5 A magnified view of section C in the image.

[0030] Figure reference numerals: 1. Junction box; 11. Wire hole; 12. Stepped groove; 2. Socket module; 21. Flame-retardant PCB panel; 22. Flame-retardant sealing strip; 221. Raised pressure strip; 222. Air hole; 223. Air cavity; 23. Connecting post; 24. Pressing post; 25. Arc groove; 26. Positioning pin hole; 27. Positioning groove; 3. Positioning assembly; 31. Fixing post; 32. Pin sleeve; 33. Positioning post; 34. Movable 35. Spring; 4. Multi-stage telescopic assembly; 5. Limiting component; 6. Support; 7. Bolt cap; 8. Bolt post; 9. L-shaped bracket; 10. Compression spring; 11. Playing wheel; 2. Hinge rod; 32. Locking element; 43. Locking rod; 54. Locking hole; 65. Guide rod; 76. Auxiliary spring; 87. Arc-shaped stepped guide groove; 9. Telescopic component; 10. Unlocking component; 11. Playing latch; 12. Lock groove. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 -Appendix Figure 10 This application will be described in further detail.

[0032] Please refer to the following: Figure 1 , Figure 2 and Figure 4A high-strength ground metal socket, mainly used in special industrial scenarios with high vibration and high impact, includes a junction box 1, a socket module 2, a positioning component 3, a limiting component 4, and an unlocking component 5. The junction box 1 is embedded in the ground area through concrete, and wire holes 11 are pre-set on the four sides and bottom side walls of the junction box 1. A stepped groove 12 is provided on the upper end surface of the junction box 1. The socket module 2 is detachably connected to the inner wall of the junction box 1, and its overall shape is a right-angled triangle structure. It is made of flame-retardant material fused with copper-plated terminals and a child lock protection module, which is located at the socket hole position. The positioning component 3 is located on the upper inner wall of the junction box 1 and cooperates with the socket module 2. The limiting component 4 is installed on the inner wall of the junction box 1 by bolts, and the limiting component 4 is rotatably connected to the adjacent right-angle side of the socket module 2. The unlocking component 5 is located on the socket module 2 and is used to unlock the positioning component 3 so that the socket module 2 flips over to expose the socket hole.

[0033] When using this ground metal socket (i.e., socket module 2 is in working state), by operating the unlocking component 5, the socket module 2 is flipped from the connection point as the hinge point, thereby exposing the socket hole, making it convenient for electrical equipment to be plugged in. After the socket module 2 is flipped open, the positioning component 3 supports and seals the socket module 2 to prevent external dust or water and other debris from entering the inside of the junction box 1. Furthermore, the opened socket module 2 is also supported by the limiting component 4 to ensure that the socket module 2 remains stable in a vibration environment, thereby ensuring the stability of the electrical equipment connection. It should be noted that this socket module 2 adopts a right-angled triangular structure, with its hypotenuse serving as the support surface when opened. After opening, the bottom horizontal surface and the limiting component 4 form a stable mechanical triangular support system, effectively dispersing the lateral force caused by vibration and avoiding structural fatigue or loosening of contact points due to long-term vibration.

[0034] When the floor metal socket is not in use (i.e., socket module 2 is in the retracted state), unplug the electrical equipment connected to the socket module 2 and press the socket module 2 directly. At this time, the positioning component 3 releases its positioning operation from the socket module 2, and the limiting component 4 releases its support, still pulling down the retracted socket module 2. This strengthens the contact between the socket module 2 and the junction box 1, improving the sealing effect. After the socket module 2 is retracted, the sealing effect will not fail or be reduced due to the influence of vibration environment. It also prevents sewage or dust from entering the junction box 1 when cleaning the floor, affecting the electrical performance of the metal socket; and fully ensures the safety of the floor metal socket.

[0035] Please refer to the following: Figure 1 and Figure 4The socket module 2 is provided with a flame-retardant PCB panel 21. Three sides of the flame-retardant PCB panel 21 protrude outward from the surface of the socket module 2, and flame-retardant sealing strips 22 are embedded in the lower end face of the three protruding sides of the flame-retardant PCB panel 21. The three protruding sides of the flame-retardant PCB panel 21 are sealed and fitted with the stepped groove 12 on the upper end face of the junction box 1.

[0036] Please refer to the following: Figure 5 One side of the socket module 2 is also provided with a flame-retardant sealing strip 22, and the flame-retardant sealing strip 22 connected to the socket module 2 does not correspond to the three protruding sides of the flame-retardant PCB panel 21.

[0037] When the socket module 2 is retracted into the junction box 1 (as shown) Figure 2 As shown in the figure, the flame-retardant sealing strip 22 and the stepped groove 12, as well as the sealing fit between the flame-retardant sealing strip 22 and the non-protruding side of the flame-retardant PCB panel 21, achieve a waterproof and dustproof sealing function. It should be noted that the flame-retardant sealing strip 22 used in this embodiment can also be made of other materials. Figure 9 In the case of flame-retardant sealing strip 22, the sealing surface of the flame-retardant sealing strip 22 further includes uniformly arranged raised pressure strips 221. The flame-retardant sealing strip 22 corresponding to the raised pressure strip 221 has an air cavity 223 inside. The outer wall of the raised pressure strip 221 and the air cavity 223 are connected and arranged with several sets of air holes 222 along its length direction, and each set of air holes 222 is symmetrically arranged in an inclined manner.

[0038] During the pressing process of the flame-retardant sealing strip 22 onto the bonding surface, the raised pressure strip 221 is first deformed into the inward groove under pressure. Then, the gas inside the air chamber 223 escapes through the air hole 222. Due to the inclined setting of the air hole 222, the escaped gas blows onto the bonding surface, thereby further cleaning the bonding surface. Therefore, when the flame-retardant sealing strip 22 is pressed and closed, it can blow away the sealing bonding surface by venting gas at the moment of pressing, removing tiny particles (such as dust and sand) that may affect the sealing effect. This ensures that a clean and reliable initial sealing interface is obtained before each closure, guaranteeing the flame-retardant seal. The sealing effect of the adhesive strip 22 on the bonding surface; at the same time, the multiple raised pressure strips 221 used in this embodiment can also achieve contact with multiple sealing lines on the bonding surface, further improving the sealing effect; it should be noted that the flame-retardant sealing strip 22 is made of fluorosilicone rubber and has the following characteristics: flame retardant rating of UL94, V-0, temperature resistance range of -50℃~+200℃, oil resistance of <10% volume change after immersion in ASTM, D471 standard for 72 hours, and compression set of ≤25% (70℃×24h). It is suitable for industrial environments with oil, high temperature or chemical corrosion.

[0039] See Figure 1 and Figure 8The side wall of the socket module 2 is symmetrically provided with connectors via springs. The connectors are provided with connecting posts 23 and pressing posts 24. The socket module 2 is rotatably installed on the inner wall of the junction box 1 via a torsion spring sleeved on the outer wall of the connecting post 23.

[0040] It should be noted that the connector is designed to facilitate the disassembly and assembly of the socket module 2. When disassembling the socket module 2, first disconnect the power, press the two pressing posts 24 on both sides, and simultaneously lift the socket module 2 upwards. Pressing will cause the connecting post 23 to partially retract into the socket module 2, and the end of the connecting post 23 to detach from the junction box 1. When installing, press the two pressing posts 24 on both sides simultaneously, causing them to partially retract into the socket module 2. Then, align the connecting post 23 with the torsion spring with the installation position on the junction box 1, and release the pressing posts 24. The torsion spring on the connecting post 23 allows the socket module 2 to automatically spring open and flip to the working state after the unlocking component 5 is opened. Furthermore, the torsion spring improves the long-term stability of the socket module 2 in the open state. In actual use, it is recommended to check the torsion spring tension and the wear of the connecting post 23 every 6 months.

[0041] See Figure 3 , Figure 4 and Figure 6 The positioning component 3 includes a fixing post 31 positioned on the inner wall of the wire box 1 corresponding to the position of the arc groove 25. A pin sleeve 32 is fitted on the outer wall of the fixing post 31. A positioning post 33 is connected between the pin sleeve 32 and the fixing post 31. A movable spring 34 is fitted on the outer wall of the positioning post 33. The end of the pin sleeve 32 is a spherical structure and the end of the pin sleeve 32 is located in the arc groove 25. The positioning component 3 also includes a multi-stage telescopic kit 35 positioned on the inner wall of the wire box 1 corresponding to the position of the positioning groove 27. The multi-stage telescopic kit 35 consists of multiple sleeves that are fitted together and springs connecting two adjacent sleeves.

[0042] It should be noted that the socket module 2 achieves elastic hinge connection with the junction box 1 through the cooperation of the connecting post 23 and the torsion spring. When the socket module 2 is flipped to the working state, the torsion spring not only provides opening assistance, but also continuously applies a torque to keep the socket module 2 open. Combined with the rigid positioning formed by the pin sleeve 32 of the positioning component 3 inserted into the positioning pin hole 26, it constitutes a dual anti-vibration guarantee of "elastic pre-tightening + rigid locking", which effectively suppresses the slight shaking of the socket module 2 itself and its interior in the vibration environment, ensures the long-term stability of the contact resistance between it and the electrical equipment, and avoids the risk of overheating and arcing.

[0043] See Figure 1 , Figure 2 and Figure 6The two outer side walls of the socket module 2 are symmetrically provided with arc-shaped grooves 25, and the lower end of the arc-shaped grooves 25 is provided with positioning pin holes 26. The lower end of the side wall of the socket module 2 located at the socket position is provided with a positioning groove 27.

[0044] When the socket module 2 is opened, the opening path of the socket module 2 is guided and limited by the cooperation of the pin sleeve 32 and the positioning groove 27, keeping the opening process smooth. At the same time, when the socket module 2 is in the working state, the action of the movable spring 34 abuts against the pin sleeve 32, so that the end of the pin sleeve 32 enters the positioning pin hole 26, completing the positioning and side wall support of the socket module 2 in the open state, effectively ensuring the stability of the socket module 2, and ensuring that the current is stably transmitted at the contact position after it is connected to the electrical equipment.

[0045] Furthermore, to further ensure the positioning and support of the side wall of the socket module 2, after the socket module 2 is in the working state, the multi-stage telescopic kit 35 cooperates with the locking groove 52 to further improve the stability of the socket module 2. At the same time, the multi-stage telescopic kit 35 also seals the gaps in the junction box 1, effectively preventing particulate matter and other debris from the environment from entering the interior of the junction box 1. It should be noted that the surface of the sleeve of the multi-stage telescopic kit 35 is plated with a hard chrome layer, which has wear-resistant and rust-proof properties. Its internal spring is made of stainless steel and coated with grease to ensure that it maintains its elastic performance in an environment of -30℃ to 120℃.

[0046] See Figure 4 The unlocking component 5 includes a movable latch 51 that is limited on the socket module 2 by a spring and a guide rod. The movable latch 51 is provided with a locking groove 52. When the socket module 2 is stored inside the wire box 1, the multi-stage telescopic kit 35 cooperates with the locking groove 52, such as... Figure 2 and Figure 4 As shown, after the socket module 2 is flipped over and its socket is exposed inside the junction box 1, the multi-stage telescopic kit 35 engages with the positioning groove 27, as... Figure 3 As shown.

[0047] Specifically, when unlocking the socket module 2, simply press the movable latch 51 and push it to move, causing the movable latch 51 to move closer to the inside of the socket module 2. Although the multi-stage telescopic kit 35 will still be engaged with the movable latch 51 by the action of the internal spring, the lower end of the locking groove 52 is... Figure 4 The semi-locking design, and the fact that the resistance force of the multi-stage telescopic kit 35 is less than the flipping force of the torsion spring at this time, ensures that the socket module 2 can be flipped by the action of the torsion spring.

[0048] When the socket module 2 is stored inside the wire box 1, the multiple springs inside the multi-stage telescopic kit 35 are in a state of maximum mutual compression. At this time, the locking strength between the movable latch 51 and the multi-stage telescopic kit 35 is at its maximum, and its locking force is much greater than the force of the torsion spring. At this time, it can strictly ensure that the socket module 2 is flipped and stored inside the wire box 1.

[0049] See Figure 3 , Figure 5 , Figure 7 and Figure 10 The limiting component 4 includes a support 41 fixedly connected to the inner wall of the junction box 1. A bolt cap 42 is rotatably mounted on the support 41, and a bolt post 43 is threadedly connected to the inside of the bolt cap 42. The bolt post 43 is movably sleeved on the support 41. An L-shaped retainer 44 is movably mounted on the outer wall of the bolt post 43, and ball bearings are evenly distributed on the side of the L-shaped retainer 44 that is in contact with the inner wall of the junction box 1. The ball bearings improve the smoothness of the up-and-down sliding of the L-shaped retainer 44, indirectly improving the smoothness of the opening and closing process of the socket module 2. A compression spring 45 is sleeved on the outer wall of the bolt post 43 between the support 41 and the support 41. The compression spring 45 is always in a compressed state. The L-shaped card holder 44 has a movable wheel 46 rotatably arranged inside by a torsion spring. The eccentric position of the movable wheel 46 is rotatably connected to a hinge rod 47. The other end of the hinge rod 47 is rotatably connected to the lower end face of the socket module 2. The lower end of the L-shaped card holder 44 is also provided with a locking member 48, which cooperates with the inner wall of the junction box 1. The movable wheel 46 is provided with a telescopic member 49, which cooperates with the locking member 48.

[0050] See Figure 10 The locking component 48 includes a locking rod 481 movably disposed at the lower end of an L-shaped card holder 44. The inner wall of the junction box 1 has a locking hole 482 that mates with the locking rod 481. The locking rod 481 is limited by two guide rods 483 fixedly connected to the L-shaped card holder 44, and an auxiliary spring 484 is also sleeved on the guide rod 483. The auxiliary spring 484 ensures that the plug section of the locking rod 481 is always in close contact with the inner wall of the junction box 1. The outer wall of the locking rod 481 is also provided with an arc-shaped stepped guide groove 485 that mates with the telescopic component 49.

[0051] When opening socket module 2, as follows Figure 3As shown, at this time, the hinge rod 47 and the movable wheel 46 are at their dead points due to the action of the torsion spring connected to the movable wheel 46. Although the compression spring 45 is in a compressed state, its force is offset by the torsion spring connected to the movable wheel 46. At this time, the torsion spring connected to the movable wheel 46 is in its limit state. The hinge rod 47 supports the socket module 2, and the auxiliary spring 484 keeps the plug section of the locking rod 481 inside the locking hole 482. The locking rod 481 horizontally locks the L-shaped card holder 44 in this position. At the same time, the movable wheel 46 also achieves position locking through the cooperation of the telescopic member 49 and the arc-shaped stepped guide groove 485. In the above way, the lower end face of the socket module 2, the hinge rod 47, and part of the inner wall of the junction box 1 are locked. The structure together forms a stable right-angled triangular support frame. This right-angled triangular support frame has extremely high geometric stability, which can effectively disperse and convert the vibration energy transmitted from the outside to the socket module 2 into pressure and shear force within the structural components, rather than torque that causes the socket module 2 to shake. This provides an exceptionally stable power supply platform for the electrical equipment plugged into it, ensuring that the plug connection will not loosen even under continuous workshop or carriage vibration, preventing the vibration environment from affecting it. It should be noted that the dead point position formed by the hinge rod 47 and the movable wheel 46 after opening can be finely adjusted and set by turning the bolt cap 42 to adjust the lower end extension length of the bolt column 43, thereby changing the initial pre-compression of the compression spring 45. The specific adjustment data can be obtained through multiple tests.

[0052] When socket module 2 changes from the open state to the retracted state, refer to [the relevant documentation]. Figure 2 and Figure 5 The movable wheel 46 rotates counterclockwise, causing the telescopic component 49 to engage with the arc-shaped stepped guide groove 485. This disengages the plug section of the locking rod 481 from the locking hole 482, and then, through the action of the compression spring 45, pushes the L-shaped bracket 44 downward. At this time, the plug section of the locking rod 481 remains firmly against the inner wall of the junction box 1. It should be noted that after the telescopic component 49 disengages the plug section of the locking rod 481 from the locking hole 482, the telescopic component 49 will disengage from the arc-shaped stepped guide groove 485 only when the socket module 2 is pressed further. When the socket module 2 is fully retracted, as shown in the image... Figure 2 As shown, the multi-stage telescopic kit 35 and the locking groove 52 of the movable latch 51 form a deep engagement, and the internal spring is in the maximum compression state. The resulting locking force is much greater than the unlocking force that may be caused by environmental vibration. At the same time, the compression spring 45 of the limiting component 4 applies a continuous downward pulling and pressing force to the closed socket module 2 through the hinge rod 47. This "strong locking + constant pressure" design ensures that the socket module 2 will never pop open or loosen on its own during long-term vibration, thus ensuring the safety of personnel and equipment.

[0053] When installing this high-strength ground metal socket, the following steps are adopted: First, pre-embed positioning: First, according to the location of the ground cable, open the wire hole 11 at the appropriate position, so that the cable passes through the wire hole 11 and is located inside the junction box 1; pre-embed the junction box 1 in the installation position. When installing the junction box 1, a level should be used to calibrate it to ensure that the upper surface of the stepped groove 12 is flush with the final ground with an error of ≤±1mm.

[0054] The second step is to fix the junction box 1: use concrete or curing adhesive to fix the junction box. If concrete is used, it is advisable to use concrete with a grade of not less than C30. After pouring, a curing period of at least 72 hours must be guaranteed.

[0055] The third step is to connect the power supply and install the socket module 2. Connect the reserved interface of the cable to the power supply inside the socket module 2, and install the socket module 2 inside the junction box 1.

[0056] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0057] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A high-strength floor metal socket, characterized in that, include: The junction box is embedded in the ground area through concrete. The four sides and the bottom side of the junction box are pre-set with wire holes. The upper surface of the junction box is provided with a stepped groove. The socket module is detachably connected to the inner wall of the junction box and can be flipped from the retracted state to the working state to expose the socket. A positioning component is installed on the upper inner wall of the wire box to position and support the socket module when it is flipped to the working state. The limiting component is bolted to the inner wall of the junction box and is rotatably connected to one side of the socket module via a hinge. The unlocking component, located on the socket module, is used to release the positioning component so that the socket module can be flipped. The limiting component includes a support fixedly connected to the inner wall of the junction box. A bolt cap is rotatably mounted on the support, and a bolt post is threadedly connected to the inside of the bolt cap. The bolt post is movably sleeved on the support. An L-shaped retainer is movably mounted on the outer wall of the bolt post, and ball bearings are evenly distributed on the side of the L-shaped retainer that is in contact with the inner wall of the junction box. A compression spring is sleeved on the outer wall of the bolt post located between the L-shaped retainer and the support. The compression spring is always in a compressed state. A movable wheel is rotatably mounted inside the L-shaped retainer via a torsion spring. A hinge rod is rotatably connected to the eccentric position of the movable wheel. The other end of the hinge rod is rotatably connected to the lower end face of the socket module. A locking element is also provided at the lower end of the L-shaped retainer. The locking element cooperates with the inner wall of the junction box. A telescopic element is provided on the movable wheel, and the telescopic element cooperates with the locking element. When the socket module is in the working state, the limiting component provides support for it; when the socket module is in the retracted state, the limiting component provides downward clamping force for it.

2. A high-strength floor metal socket according to claim 1, characterized in that, The socket module has a right-angled triangular structure, and its bottom horizontal plane and the limiting component together form a mechanical triangular support system when it is in operation.

3. A high-strength floor metal socket according to claim 1, characterized in that, The socket module is provided with a flame-retardant PCB panel, three of which protrude outward from the surface of the socket module, and flame-retardant sealing strips are embedded in the lower end face of the three protruding sides of the flame-retardant PCB panel. When the socket module is in the retracted state, the flame-retardant sealing strip is sealed to the stepped groove on the upper surface of the junction box.

4. A high-strength floor metal socket according to claim 3, characterized in that, The flame-retardant sealing strip has at least one raised pressure strip on its sealing surface. The flame-retardant sealing strip corresponding to the raised pressure strip has an air cavity inside. The outer wall of the raised pressure strip and the air cavity are connected by several sets of air holes arranged along its length direction, and each set of air holes is symmetrically arranged in an inclined manner.

5. A high-strength floor metal socket according to claim 1, characterized in that, The socket module has two symmetrical arc-shaped grooves on its two outer side walls. The lower end of the arc-shaped grooves has a positioning pin hole. The positioning component includes a fixing post set on the inner wall of the wire box corresponding to the position of the arc-shaped groove. A pin sleeve is fitted on the outer wall of the fixing post. A positioning post is connected between the pin sleeve and the fixing post. A movable spring is fitted on the outer wall of the positioning post. When the socket module is flipped to the working state, the end of the pin sleeve is engaged in the positioning pin hole under the action of the movable spring.

6. A high-strength floor metal socket according to claim 1, characterized in that, The socket module has a positioning groove at the lower end of the side wall of the socket position; The positioning component also includes a multi-stage telescopic kit positioned on the inner wall of the box corresponding to the positioning groove; the multi-stage telescopic kit consists of multiple sleeves that are interlocked and a spring connecting two adjacent sleeves. The unlocking component includes a movable latch that is limited on the socket module by a spring and a guide rod, and the movable latch is provided with a locking groove; When the socket module is in the retracted state, the multi-stage telescopic kit engages with the locking groove to lock it in place; when the socket module is in the working state, the multi-stage telescopic kit engages with the positioning groove.

7. A high-strength floor metal socket according to claim 1, characterized in that, The sidewall of the socket module is symmetrically equipped with connectors via springs. Each connector has a connecting post and a pressing post. The socket module is rotatably mounted on the inner wall of the junction box via the connecting post. The outer wall of the connecting post is fitted with a torsion spring that causes the socket module to flip open. Pressing the pressing post retracts the connecting post, allowing the socket module to be removed from the junction box.

8. A high-strength floor metal socket according to claim 3, characterized in that, One side of the socket module is also provided with a flame-retardant sealing strip, and the flame-retardant sealing strip connected to the socket module does not correspond to the three protruding sides of the flame-retardant PCB panel.

9. A high-strength floor metal socket according to claim 1, characterized in that, The locking component includes a locking rod movably mounted at the lower end of an L-shaped card holder. The inner wall of the junction box has a locking hole that mates with the locking rod. The locking rod is limited by two guide rods fixedly connected to the L-shaped card holder, and an auxiliary spring is also sleeved on the guide rod. The auxiliary spring ensures that the plug section of the locking rod is always in close contact with the inner wall of the junction box. The outer wall of the locking rod also has an arc-shaped stepped guide groove that mates with a telescopic component.

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