Safety interlock and electrical connector

Abstract

The utility model relates to a kind of safety linkage device and electric connector, the safety linkage device is through the structural design of reset top pressure mechanism and reset pulling mechanism, using the force of power plug insertion to drive reset top pressure mechanism to act, enter through reset pulling mechanism drive connecting mechanism respectively connect the two electrical devices on installation base body, realize the electric connection of both, such structural design is very ingenious, without redundant operation, the electric connection of two electrical devices can be realized. The electric connector using the above structural design can effectively use the action of the power plug of external motor inserted into the electric connector to drive reset top pressure mechanism, ensure that the electrical device for power in the electric connector is not electrified when power plug is not inserted into the electric connector, improve the safety of use.

Description

Technical Field

[0001] This utility model relates to the field of electrical connection equipment technology, and in particular to a safety linkage device and an electrical connector. Background Technology

[0002] Electrical connectors, such as sockets, are widely used electrical connection devices primarily designed to enable quick connections between electrical appliances and power sources. However, due to their exposed socket design, current electrical connectors are susceptible to the entry of external dust, moisture, and liquids, which can cause short circuits or external discharges, potentially leading to safety hazards.

[0003] To address the aforementioned issues, patent CN105938952B discloses a safety socket. This safety socket features a protective mechanism designed to effectively prevent water or other conductive liquids from entering and causing electric shock. It uses a physical sealing method to isolate the socket from the external environment. While this design largely solves the problem of water or other conductive liquids entering the socket, the movement of the sealing device is horizontal. It relies on a ramp on the device to distribute the vertical force applied during plug insertion into a horizontal force, pushing the device aside and allowing the plug to be inserted into the socket. This structure, due to the different directions of force application, can cause the device to jam in actual operation. Users with less strength may find it difficult to insert the plug. In some cases, after the plug is removed, the device may fail to spring back due to its own sluggish movement, preventing it from sealing the socket again. This renders the device ineffective, thus posing a safety risk to the socket. Furthermore, this design merely improves upon the existing socket structure by adding structural elements, and it cannot address the issue of the socket's prongs remaining energized even when not in use. To address this, some manufacturers design a separate safety switch for each socket, controlling the connection between the prongs and the main board. While this solves the aforementioned problem, it increases the number of components, complicates the structure, and raises manufacturing costs. Such switches are also more susceptible to damage when energized, especially during electrical short circuits. Additionally, connecting an external push-button switch to the main board makes sealing the socket more difficult, allowing external liquids to enter the socket, particularly the main board, potentially causing a short circuit. Therefore, a new safety mechanism is needed to solve these problems. Utility Model Content

[0004] To achieve the above objectives, this utility model provides a safety linkage device and an electrical connector.

[0005] Firstly, the safety linkage device provided by this utility model includes: The mounting base is equipped with guide posts and limiting cylinders; A reset pressing mechanism is movably mounted on the guide post, and the reset pressing mechanism can be pressed and slide along the axial direction of the guide post; A reset pulling mechanism is movablely inserted into or mounted on the limiting cylinder, and the input end of the reset pulling mechanism abuts against the output end of the reset pressing mechanism. A connection component for connecting two adjacent electrical components on the mounting base, wherein either of the electrical components is energized; When the reset pressing mechanism is subjected to pressure or external force, the reset pressing mechanism can slide along the axial direction of the guide post, and at the same time, the reset pulling mechanism drives the connecting assembly to connect the two electrical components.

[0006] In some possible implementations, the reset pressing mechanism includes a pressing plate with a plurality of pressing heads for bearing external forces. The pressing plate is movably mounted on the guide post, and a reset spring is movably mounted on the guide post. The two ends of the reset spring are respectively connected to the back of the pressing plate and the corresponding side of the mounting base. The pressing plate is provided with a pressing arm for abutting against the corresponding end of the reset pulling mechanism.

[0007] In some possible implementations, a pressing part is provided on the outward end of the pressing arm, and limit blocks are provided on both sides of the pressing part, forming a limiting area between the two limit blocks, and the corresponding end of the reset pulling mechanism is placed in the limiting area.

[0008] In some possible implementations, the reset pulling mechanism includes a sliding rod, a connector, and a force transmission arm. An isolation chamber is provided on the mounting base, and a slidable connecting mechanism is provided inside the isolation chamber. The connecting mechanism is mounted on the connector, which is located at one end of the sliding rod. The other end of the sliding rod is repositionably inserted into the limiting cylinder. One end of the force transmission arm is connected to the other end of the sliding rod, and the outward end of the force transmission arm abuts against the actuating end of the reset pressing mechanism. The reset pressing mechanism can drive the sliding rod, connector, and connecting mechanism to slide along the axial direction of the sliding rod via the force transmission arm.

[0009] In some possible implementations, a guide rod is provided on the end of the sliding rod connected to the force transmission arm. The guide rod is movably inserted into the limiting cylinder. A return spring is movably fitted on the guide rod. The two ends of the return spring abut against the end face of the limiting cylinder and the shoulder between the guide rod and the sliding rod, respectively.

[0010] In some possible implementations, the isolation chamber is an insulated environment. One end of the sliding rod is movably inserted into the bottom of the isolation chamber, and the sliding rod can be reset relative to the isolation chamber. The connector is located on the end of the sliding rod inside the isolation chamber. Terminals are provided on both sides of the outer wall of the isolation chamber. The terminals on both sides are connected to the corresponding electrical components via wires. The terminals are provided with connectors that pass through the side walls of the isolation chamber but do not penetrate into the isolation chamber. The sliding rod can drive the connecting assembly to connect or disconnect the connectors on both sides.

[0011] In some possible implementations, the connection mechanism includes an insulating column and a connecting piece disposed within the insulating column. The insulating column is slidably mounted within the isolation chamber. The insulating column is mounted on one end of the reset pulling mechanism located within the isolation chamber. Sliding holes are provided at both ends of the insulating column. Deformable elastic portions are provided at both ends of the connecting piece. An abutment portion is provided on the elastic portion extending outward from the sliding hole. The abutment portion can be electrically connected to the end of the connector.

[0012] Secondly, this utility model also provides an electrical connector, which has the safety linkage device described above inside.

[0013] Compared to existing technologies, the advantages of this invention are as follows: The safety linkage device of this invention utilizes the structural design of a reset pressing mechanism and a reset pulling mechanism. The force exerted when the power plug is inserted drives the reset pressing mechanism, which in turn drives the connecting mechanism to connect two electrical components on the mounting base, achieving electrical connection between them. This ingenious structural design achieves electrical connection between the two components without requiring additional operations. By adopting the above structural design, this electrical connector effectively utilizes the action of inserting the power plug of an external motor into the connector to drive the reset pressing mechanism, ensuring that the electrical components inside the connector are not energized when the power plug is not inserted, thus improving safety during use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0015] Figure 1 A three-dimensional structural schematic diagram of the electrical connector provided in an embodiment of this utility model; Figure 2An exploded view of the present invention with the electrical connector cover removed, provided in an embodiment of the present invention; Figure 3 This is a cross-sectional view of the electrical connector provided in an embodiment of the present invention after the cover has been removed. Figure 4 A cross-sectional view of the connecting mechanism provided in an embodiment of this utility model; Figure 5 Schematic diagram of the linkage drive device and mounting base structure provided in the embodiments of this utility model Figure 1 ; Figure 6 Schematic diagram of the linkage drive device and mounting base structure provided in the embodiments of this utility model Figure 2 .

[0016] Figure label: Electrical connector 100, protective chamber 110, PCB board 111, fuse 112, emergency stop switch 113, indicator light 114, terminal block 115, isolation chamber 120, terminal block 121, connector 122, insertion chamber 130, insertion assembly 140, mounting base plate 141, limiting post 142, pin 143, movable hole 144, connecting mechanism 150, insulating post 151, connecting piece 152, sliding hole 153, elastic part 154, abutting part 155, elastic insulating ring 156, insertion hole 160, guide post 170, limiting cylinder 180; Linkage drive device 200, reset pressing mechanism 210, pressing plate 211, pressing head 212, reset spring 213, pressing arm 214, pressing part 215, limit block 216, reset pulling mechanism 220, sliding rod 221, connector 222, force transmission arm 223, guide rod 224, return spring 225. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figures 1 to 6The electrical connector shown herein, and particularly this application also provides a safety linkage device, wherein the electrical connector 100 of this embodiment is a socket, which is provided with a control chamber 110, an isolation chamber 120 and at least one insertion chamber 130. An insertion assembly 140 is provided in the insertion chamber 130, and a slidable connecting mechanism 150 is provided in the isolation chamber 120. The control chamber 110 is used to connect an external power cord, and the sliding direction of the connecting mechanism 150 is parallel to the direction in which the power plug of the external appliance is inserted into the insertion assembly 140. The electrical connector 100 of this application also has a safety linkage device inside, which includes a linkage drive device 200. The linkage drive device 200 includes a reset pressing mechanism 210 and a reset pulling mechanism 220. Mechanism 210 is located in the bottom region of the insertion compartment 130 at the insertion assembly 140. The reset pressing mechanism 210 has multiple operating ends, all of which can be movably inserted into the insertion assembly 140. The reset pulling mechanism 220 is movably inserted into the bottom of the isolation chamber 120. One end of the reset pulling mechanism 220 located inside the isolation chamber 120 is connected to the connecting mechanism 150, and the other end of the reset pulling mechanism 220 can abut against the operating end of the reset pressing mechanism 210. When the power plug of an external electrical appliance is inserted into the insertion assembly 140, the power plug can press against the operating end of the reset pressing mechanism 210. The operating end of the reset pressing mechanism 210 can drive the connecting mechanism 150 to slide relative to the isolation chamber 120, thereby electrically connecting the control chamber 110 and the insertion compartment 130. The mounting base is either the housing structure of the electrical connector 100 or an internal mounting structure; in this application, it is specifically the housing structure of the electrical connector 100. In this application, two adjacent electrical components are the control compartment 110 and the insertion compartment 130. For ease of explanation, the control compartment 110 and the insertion compartment 130 are used directly to replace the corresponding electrical components in the following examples. This makes it easier to explain the usage environment of the entire safety linkage device and its structural relationship with the electrical connector 100.

[0019] Specifically, in this application, the prevention and control cabin 110, the isolation cabin 120, and the insertion cabin 130 are mutually isolated, forming an independent space. The prevention and control cabin 110 and the isolation cabin 120, as well as the isolation cabin 120 and the insertion cabin 130, are connected by wires. This structure ensures overall safety. In this application, if multiple insertion cabins 130 are provided, the number of isolation cabins 120 must also be matched to the number of insertion cabins 130 to improve overall safety. If it is a conventional fixed-installation electrical connector structure, which generally only allows two electrical plugs to be inserted simultaneously, i.e., has two insertion components 140, then the two insertion components 140 can share a set of reset pressing mechanism 210 and reset pulling mechanism 220. In this case, after any insertion component 140 is inserted into the power plug, it can trigger the operation of the reset pressing mechanism 210 and the reset pulling mechanism 220.

[0020] Furthermore, the main function of the isolation chamber 120 in this application is to achieve the electrical connection between the control chamber 110 and the insertion chamber 130. For this purpose, it can adopt a modular structural design. The outer shell of the isolation chamber 120 is made entirely of insulating material, and the interior is also an insulating space. This ensures that when the connection mechanism 150 is not connected to the control chamber 110 and the insertion chamber 130, the two ends of the connection mechanism 150 will not discharge relative to the control chamber 110 and the insertion chamber 130. It should be noted that in the actual connection process, the insertion component 140 needs to simultaneously connect the live wire, neutral wire, and ground wire. Therefore, to improve safety, the aforementioned live wire, neutral wire, and ground wire can be simultaneously set within the same connection mechanism 150, with the live wire, neutral wire, and ground wire being mutually insulated. Furthermore, three sets of connection mechanisms 150 can be simultaneously set, corresponding to the connection of the live wire, neutral wire, and ground wire respectively. Each of the three sets of connection mechanisms 150 is connected to one end of the reset pulling mechanism 220.

[0021] It should be noted that the electrical connector 100 in this application also includes a housing, in which the protective chamber 110, the isolation chamber 120 and the insertion chamber 130 are all disposed. The housing has a pre-drilled hole for the plug-in assembly 140. In fact, this design is also a conventional structural design, which will not be described in detail here.

[0022] This electrical connector 100 is an improvement on existing electrical connectors, dividing it into a control compartment 110, an isolation compartment 120, and a plug compartment 130. This design achieves functional zoning management, which is beneficial for improving safety. The control compartment 110 and the plug compartment 130 are connected via a connecting mechanism 150 within the isolation compartment 120. This structural design ensures that the plug assembly 140 within the plug compartment 130 will not be energized until the power plug of an external motor is fully inserted into the plug assembly 140. Through the structural design of the reset pressing mechanism 210 and the reset pulling mechanism 220, the force exerted when the power plug is inserted drives the connecting mechanism 150 to slide within the isolation compartment 120. Finally, the connecting mechanism 150 connects the control compartment 110 and the plug compartment 130, achieving electrical connection between them. At this point, the control compartment 110 can sequentially supply power to the power plug of external electrical appliances through the connecting mechanism 150 and the plug compartment 130. This ingenious structural design achieves electrical connection between the control compartment 110 and the plug compartment 130 without any additional operations. In addition, the reset pressing mechanism 210 can automatically block the socket 160 of the plug-in component 140 when no power plug is inserted, thus achieving a blocking effect and preventing foreign objects from entering the plug-in component 140 to a certain extent, which could lead to safety accidents after power is applied.

[0023] See Figure 1 and Figure 2As shown, the main purpose of the control cabin 110 is to connect to an external power source. Therefore, in one embodiment of this application, a PCB board 111 is provided inside the control cabin 110. A fuse 112, an emergency stop switch 113, and an indicator light 114 are provided on the PCB board 111. The PCB board 111 is connected to the terminal block 121 on the outer wall of the isolation cabin 120 through wires. One end of the emergency stop switch 113 and the indicator light 114 both protrude from the control cabin 110 and are placed outside the housing of the electrical connector 100. A terminal block 115 is provided on the side of the PCB board 111 away from the insertion compartment 130.

[0024] In this embodiment, the main purpose of the fuse 112 is to ensure the safety of the entire electrical connector 100. Therefore, in the actual circuit layout of the PCB board 111, its input terminal is connected to a terminal block 115, and its output terminal is connected to the wiring structure on the outer wall of the isolation chamber 120 via a wire. The fuse 112 connects the output terminal and the input terminal. The indicator light 114 is designed to help users understand the specific status of the entire electrical connector 100, and the emergency stop switch 113 is designed to allow users to manually shut off the power supply from the control chamber 110, improving safety.

[0025] See Figures 2 to 3 To facilitate electrical connection between the plug-in assembly 140 and the control chamber 110, while ensuring the insulation of the interior of the isolation chamber 120, in one embodiment of this application, terminal posts 121 are provided on both sides of the outer wall of the isolation chamber 120. The terminal posts 121 on both sides are respectively connected to the plug-in assembly 140 and the control chamber 110. The terminal posts 121 are provided with terminals 122. The terminals 122 pass through the side wall of the isolation chamber 120 but do not penetrate into the isolation chamber 120. The two terminals 122 can be electrically connected to the two ends of the connection mechanism 150. The interior of the isolation chamber 120 is an insulating environment.

[0026] In this application, terminal 121 is actually a terminal. Generally, the plug-in assembly 140 needs to connect the live wire, neutral wire, and ground wire simultaneously. To enhance safety, the connection mechanism 150 is preferably provided with three sets, corresponding to the live wire, neutral wire, and ground wire respectively. Correspondingly, three terminal 121s are also provided on the outer wall of each isolation chamber 120. In order to prevent the terminal from discharging outward, the wires connected to it can be directly soldered and fixed, that is, the wires connected to the plug-in assembly 140 and the control chamber 110 to the terminal 121 respectively.

[0027] Furthermore, the side wall of the isolation chamber 120 is provided with a socket structure for installing a connector 122. The connector 122 can be flush with the end face of the socket structure located inside the isolation chamber 120, so that the connecting structure on the connecting mechanism 150 can abut against the corresponding end of the connector 122 to achieve an electrical connection. Of course, in some embodiments, to improve safety, the connecting mechanism 150 can be modified to make the connecting structure of the connecting mechanism 150 elastic. In this case, the end of the connector 122 does not need to protrude from the socket structure. It can be inserted into the socket structure by relying on the connecting structure of the connecting mechanism 150 and abut against the corresponding end of the connector 122 to achieve an electrical connection. To facilitate the installation of the connecting mechanism 150, the isolation chamber 120 can be designed as a cover structure. The connection seam between the cover and the body of the isolation chamber 120 is sealed by a sealing ring, and the structure between the cover and the body of the isolation chamber 120 can be fixed by screws.

[0028] See Figure 2 and Figure 3 As shown, in order to adapt to the operation of the reset pressing mechanism 210, in one embodiment of this application, the plug-in assembly 140 includes a mounting base plate 141, a plurality of limiting posts 142 disposed on the mounting base plate 141, and a plug 143 disposed on each limiting post 142. The outward end of all plugs 143 is connected to the corresponding terminal post 121 on the outer wall of the isolation chamber 120 through a wire. The mounting base plate 141 is installed inside the plug chamber 130 and located above the reset pressing mechanism 210. The mounting base plate 141 is provided with a movable hole 144 on the corresponding area of ​​each limiting post 142 that is adapted to the operating end of the reset pressing mechanism 210. When the power plug of the external electrical appliance is inserted into the plug 143, the power plug can press against the corresponding operating end of the reset pressing mechanism 210. The reset pressing mechanism 210 and the reset pulling mechanism 220 drive the connecting mechanism 150 to move, so that the control chamber 110 and the plug chamber 130 are electrically connected.

[0029] Specifically, the mounting base plate 141 is fixed to the mounting post inside the insertion compartment 130 with screws. The mounting base plate 141 also divides the insertion compartment 130 into two spaces: one for installing the insertion assembly 140, and the other for installing the reset and pressing mechanism 210. This structure provides a degree of safety isolation. The limiting post 142 is hollow, with the end of the plug 143, which is used to mate with the external power plug, located inside the limiting post 142. The limiting post 142 constrains the deformation of the plug 143, ensuring a stable connection between the plug 143 and the external power plug.

[0030] In some embodiments, the operating end of the reset pressing mechanism 210 is movably inserted into the movable hole 144. When no power plug is inserted, the operating end of the reset pressing mechanism 210 can fully extend out of the limiting post 142 and be flush with the inner end of the socket on the housing of the electrical connector 100, thus sealing the socket on the housing of the electrical connector 100 and providing protection. Of course, in some improved embodiments, a sealing structure can be designed on the top of the plug assembly 140, such as the control mechanism in a safety electrical connector in patent CN105938952B. That is, a mounting structure needs to be designed on the mounting base plate 141 for mounting the control mechanism. In this case, the operating end of the reset pressing mechanism 210 does not need to extend too far, and the installation space required for the reset pressing mechanism 210 is also reduced.

[0031] See Figure 4 As shown in the previous embodiment, the connection mechanism 150 in this application can be configured with a structure that connects the live wire, neutral wire, and ground wire at one time, or it can be divided into three connection mechanisms 150 for connecting the live wire, neutral wire, and ground wire respectively. In this application, it is preferred to be divided into three, which facilitates individual replacement and maintenance in the later stage. The connection mechanism 150 includes an insulating column 151 and a connecting piece 152 disposed in the insulating column 151. The insulating column 151 is slidably installed in the isolation chamber 120. The insulating column 151 is installed on one end of the reset pulling mechanism 220 located in the isolation chamber 120. Both ends of the insulating column 151 are provided with sliding holes 153. Both ends of the connecting piece 152 are provided with deformable elastic parts 154. The elastic parts 154 are provided with abutment parts 155 extending outward from the sliding holes 153. The abutment parts 155 can be electrically connected to the end of the connector 122.

[0032] The elastic part 154 has a serpentine bend structure, which ensures that the abutment part 155 always maintains outward elasticity, thereby ensuring that it can abut against the end of the connector 122 after the entire connection mechanism 150 is in place. The structure composed of the insulating post 151 and the connecting piece 152 can be obtained by directly sintering alumina ceramic or other ceramic materials in this application.

[0033] In the above-described improved embodiment, to further enhance insulation capability, an elastic insulating ring 156 is provided on the outer periphery of the abutment portion 155, and at least a portion of the elastic insulating ring 156 is slidably inserted into the sliding hole 153. The elastic insulating ring 156 prevents the abutment portion 155 from directly rubbing against the inner wall of the sliding hole 153, thus avoiding the generation of debris. This debris may contain metal, which could easily lead to subsequent discharge problems.

[0034] See further Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, the reset pressing mechanism 210 includes a pressing plate 211. The pressing plate 211 is provided with a plurality of pressing heads 212 that are movably inserted into the plug assembly 140. The outward end of the pressing head 212 can block the socket 160 on the electrical connector 100 for the insertion of the power plug. The pressing plate 211 is movably mounted on the guide post 170 of at least one electrical connector 100. A reset spring 213 is movably mounted on the guide post 170. The two ends of the reset spring 213 are respectively connected to the back of the pressing plate 211 and the inner wall of the electrical connector 100. The pressing plate 211 is provided with a pressing arm 214 for abutting against the corresponding end of the reset pulling mechanism 220.

[0035] The pressure head 212 is actually inserted into the movable hole 144 in the plug-in assembly 140 and placed in the limiting post 142. In the aforementioned embodiment, whenever any power plug is inserted into the limiting post 142 and abuts against the pin 143, the tip of the power plug can press against the end of the pressure head 212, causing the entire pressure plate 211 to slide under force on the guide post 170, that is, to slide away from the side where the power plug is inserted. At this time, the pressure plate 211 slides downward together, thereby driving the pressure arm 214 to slide in the above direction. Finally, the connection mechanism 150 can be driven by the reset pulling mechanism 220 to realize the electrical connection of the wiring heads 122 on both sides of the isolation chamber 120.

[0036] See further Figure 3 and Figure 6 To facilitate cooperation with the operating end of the reset traction mechanism 220, in the improved embodiment described above, a pressing part 215 is provided on the outward end of the pressing arm 214, and limit blocks 216 are provided on both sides of the pressing part 215, forming a limiting area between the two limit blocks 216. The corresponding end of the reset traction mechanism 220 is placed within the limiting area. In some embodiments, for better connection, the pressing part 215 can be designed as a U-shaped plug structure, with the corresponding end of the reset traction mechanism 220 inserted into the U-shaped plug structure. This allows the reset traction mechanism 220 to move when the pressing arm 214 slides at either end relative to the axis of the guide post 170. Furthermore, the reset traction mechanism 220 has an automatic reset function. Therefore, during actual operation, when the pressing plate 211 slides along the corresponding end of the guide post 170 under pressure, the pressing arm 214 applies a downward force to the reset traction mechanism 220, causing it to move accordingly. After the force on the top pressure plate 211 disappears, both the reset pulling mechanism 220 and the top pressure plate 211 can automatically reset.

[0037] See further Figure 3 , Figure 5 and Figure 6As shown, the reset pulling mechanism 220 includes a sliding rod 221, a connector 222, and a force transmission arm 223. One end of the sliding rod 221 is movably inserted into the bottom of the isolation chamber 120, and the sliding rod 221 can be reset relative to the isolation chamber 120. The connector 222 is located on the end of the sliding rod 221 inside the isolation chamber 120, and the connecting mechanism 150 is installed on the connector 222. One end of the force transmission arm 223 is connected to the other end of the sliding rod 221, and the outward end of the force transmission arm 223 abuts against the actuating end of the reset pressing mechanism 210. The reset pressing mechanism 210 can drive the sliding rod 221, the connector 222, and the connecting mechanism 150 to slide along the axial direction of the sliding rod 221 through the force transmission arm 223.

[0038] Specifically, in the above embodiment, the outward end of the force transmission arm 223 is actually connected to the top pressure arm 214, and the outward end of the force transmission arm 223 is locked within the limiting structure formed by the top pressure part 215 and the limiting block 216. Furthermore, in the above embodiment, the insulating post 151 in the connecting mechanism 150 is actually installed on the connector 222; the connector 222 can be a mounting platform structure or it can be connected to the insulating post 151 by a snap-fit ​​method. Therefore, the actual connector 222 has three slot structures, corresponding to the insulating post 151 connected to the live wire, ground wire, and neutral wire respectively. This structural design also facilitates later maintenance and replacement of the connecting mechanism 150.

[0039] It should be noted that in the above embodiments, the connection between the sliding rod 221 and the isolation chamber 120 can be directly adopted using a traditional movable insertion structure. In order to improve the sealing performance inside the isolation chamber 120, an outward sliding cylinder structure can be provided at the bottom of the isolation chamber 120, and the sliding rod 221 is movably inserted into the sliding cylinder. This structure can ensure that the sliding rod 221 can only slide along the axial direction of the sliding cylinder.

[0040] In the above-mentioned improved scheme, in order to realize the automatic reset of the sliding rod 221, a guide rod 224 is provided on one end of the sliding rod 221 connected to the force transmission arm 223. The guide rod 224 is movably inserted into the limiting cylinder 180 of the electrical connector 100. A return spring 225 is movably fitted on the guide rod 224. The two ends of the return spring 225 abut against the end face of the limiting cylinder 180 and the shoulder between the guide rod 224 and the sliding rod 221, respectively.

[0041] In the above embodiments, the limiting cylinder 180 can both restrict the movement direction of the sliding rod 221 and serve as a positioning device. When installing the isolation chamber 120, the sliding rod 221 needs to be installed first, and then the isolation chamber 120 and the housing of the electrical connector 100 need to be fixed relative to each other. It should be noted that, in this application, since the axial direction of the sliding rod 221 is parallel to the axial direction of the guide post 170, that is, the movement direction of the sliding rod 221 is the same as the movement direction of the top pressure plate 211, the risk of jamming between the top pressure plate 211 and the sliding rod 221 when the top pressure plate 211 is pressed can be reduced.

[0042] The linkage principle of the sliding rod 221 and the top pressure plate 211 is as follows: When the power plug is inserted from the socket 160 on the electrical connector 100, it first enters the insertion compartment 130, and then enters the insertion assembly 140. As the power plug continues to be inserted, it enters the limiting post 142. Due to the restriction of the limiting post 142, the power plug continues to be inserted and first comes into contact with the end of the top pressure head 212, and then continues to press the top pressure head 212. The top pressure head 212 drives the top pressure plate 211 and the top pressure arm 214 to move along the axis of the guide post 170 away from the socket 160. The return spring 213 is gradually compressed. Since the top pressure arm 214 will drive the force transmission arm 223 to move along the axis of the guide post 170 away from the socket 160, the sliding rod 221, together with the connecting mechanism 150, is inserted into the limiting cylinder 180. At the same time, the return spring 225 is also gradually compressed. As the power plug is continuously inserted, the connecting mechanism 150 continuously approaches the terminals 122 on both sides of the isolation chamber 120. After the power plug is inserted into place, the return spring 225 and the reset spring 213 are compressed to their shortest length. At the same time, the terminals 122 on both sides of the isolation chamber 120 are connected through the connecting mechanism 150. Then, the control chamber 110 is electrically connected to the power plug in sequence through the terminal 122 on the corresponding side, the connecting mechanism 150, the terminal 122 on the other side, and the pin 143. As the power plug is gradually pulled out of the pin 143, the sliding rod 221 and the top pressure plate 211 are reset due to the elastic force of the return spring 225 and the reset spring 213. At this time, the connecting mechanism 150 will disengage from the wiring terminals 122 on both sides of the isolation chamber 120 and gradually move away. The top pressure plate 211 will drive the top pressure head 212 to continue to be inserted into the limiting post 142. After the power plug is completely pulled out of the socket 160, the return spring 225 and the reset spring 213 are fully reset, and the sliding rod 221 and the top pressure plate 211 are also reset.

[0043] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A safety linkage device, characterized in that, include: The mounting base is equipped with guide posts and limiting cylinders; A reset pressing mechanism is movably mounted on the guide post, and the reset pressing mechanism can be pressed and slide along the axial direction of the guide post; A reset pulling mechanism is movablely inserted into or mounted on the limiting cylinder, and the input end of the reset pulling mechanism abuts against the output end of the reset pressing mechanism. A connection component for connecting two adjacent electrical components on the mounting base, wherein either of the electrical components is energized; When the reset pressing mechanism is subjected to pressure or external force, the reset pressing mechanism can slide along the axial direction of the guide post, and at the same time, the reset pulling mechanism drives the connecting assembly to connect the two electrical components.

2. The safety linkage device according to claim 1, characterized in that, The reset pressing mechanism includes a pressing plate with several pressing heads for bearing external forces. The pressing plate is movably mounted on the guide post, and a reset spring is movably mounted on the guide post. The two ends of the reset spring are respectively connected to the back of the pressing plate and the corresponding side of the mounting base. The pressing plate is provided with a pressing arm for abutting against one end of the reset pulling mechanism.

3. The safety linkage device according to claim 2, characterized in that, The top pressing arm has a top pressing part on one outward end, and limit blocks are provided on both sides of the top pressing part. A limit area is formed between the two limit blocks, and the corresponding end of the reset pulling mechanism is placed in the limit area.

4. The safety linkage device according to claim 1, characterized in that, The reset pulling mechanism includes a sliding rod, a connector, and a force transmission arm. An isolation chamber is provided on the mounting base, and a slidable connecting mechanism is provided inside the isolation chamber. The connecting mechanism is installed on the connector, and the connector is located on one end of the sliding rod. The other end of the sliding rod is repositionably inserted into the limiting cylinder. One end of the force transmission arm is connected to the other end of the sliding rod, and the outward end of the force transmission arm abuts against the actuating end of the reset pressing mechanism. The reset pressing mechanism can drive the sliding rod, connector, and connecting mechanism to slide along the axial direction of the sliding rod through the force transmission arm.

5. The safety linkage device according to claim 4, characterized in that, A guide rod is provided on one end of the sliding rod that is connected to the force transmission arm. The guide rod is movably inserted into the limiting cylinder. A return spring is movably fitted on the guide rod. The two ends of the return spring abut against the end face of the limiting cylinder and the shoulder between the guide rod and the sliding rod, respectively.

6. The safety linkage device according to claim 4, characterized in that, The isolation chamber is an insulated environment. One end of the sliding rod is movably inserted into the bottom of the isolation chamber, and the sliding rod can be reset relative to the isolation chamber. The connector is located on the end of the sliding rod inside the isolation chamber. Terminals are provided on both sides of the outer wall of the isolation chamber. The terminals on both sides are connected to the corresponding electrical components on the same side through wires. The terminals are provided with connectors that pass through the side wall of the isolation chamber but do not penetrate into the isolation chamber. The sliding rod can drive the connecting assembly to connect or disconnect the connectors on both sides.

7. The safety linkage device according to claim 6, characterized in that, The connecting mechanism includes an insulating column and a connecting piece disposed within the insulating column. The insulating column is slidably installed within the isolation chamber. The insulating column is mounted on one end of the reset pulling mechanism located within the isolation chamber. Sliding holes are provided at both ends of the insulating column. Deformable elastic portions are provided at both ends of the connecting piece. An abutment portion is provided on the elastic portion extending outward from the sliding hole. The abutment portion can be electrically connected to the end of the connector.

8. An electrical connector, characterized in that, It contains the safety linkage device as described in any one of claims 1 to 7.

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