An installable leakage protector

Abstract

This invention discloses a modular and assembleable residual current device (RCD) for installation. Applying to the field of RCD technology, this invention utilizes a modular splicing structure, employing a docking mechanism and a positioning mechanism, to allow multiple RCDs to be joined together to form a single unit. This facilitates the installation of multiple RCDs as a whole at the point of use, saving time and effort and achieving convenient and flexible installation. The fixed structure, through the combined use of a connecting mechanism, a locking mechanism, and a limiting mechanism, replaces the conventional screw fixing method, simplifying the installation process and making it easier to install. Furthermore, when one RCD is damaged and needs replacement, it can limit the movement of other RCDs, preventing them from detaching from the fixed structure due to the absence of a single RCD.

Description

Technical Field

[0001] This invention belongs to the field of residual current device (RCD) technology, and specifically relates to an RCD that can be assembled and combined for installation. Background Technology

[0002] Depending on the installation method of the residual current device (RCD), it will face various usage scenarios during installation, not limited to the one mentioned below. More specifically, since RCDs are usually single units, when a large number of RCDs need to be installed, they must be installed one by one, making the process time-consuming and labor-intensive. In addition, RCDs are mainly installed by fixing with screws, and there are many screws. When one of the RCDs is damaged and replaced, the repeated tightening of the screws can easily damage the screw threads, resulting in stripping, which is detrimental to the installation of the RCD.

[0003] By examining the issues mentioned above, we find that existing residual current devices (RCDs) on the market are difficult to install without addressing these problems, thus failing to achieve the desired results. Therefore, we propose an RCD that allows for the simultaneous installation of multiple RCDs in a modular, assembly-based configuration. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing modular residual current devices (RCDs) that can be assembled and combined. The advantages of this invention are that by setting up a splicing structure, multiple RCDs can be spliced ​​together to form a single unit through the coordinated use of docking and positioning mechanisms. This facilitates the overall installation of multiple RCDs at the point of use, saving time and effort and achieving convenient and flexible installation. Furthermore, by setting up a fixing structure, the coordinated use of connecting, locking, and limiting mechanisms can replace the conventional screw fixing method, simplifying the installation process and making it easier to install. Additionally, when one RCD is damaged and needs replacement, it can limit the movement of other RCDs, preventing them from detaching from the fixing structure due to the absence of a single RCD, thus achieving a protective effect.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a residual current device (RCD) that can be assembled and installed, comprising an RCD body, a mounting frame, and an installation unit. The installation unit includes a splicing structure and a fixing structure. The fixing structure includes a connecting mechanism. The RCD body is snapped into the interior of the connecting mechanism. Both sides of the connecting mechanism are bolted with engagement mechanisms, which engage with the surface of the mounting frame. A limiting mechanism is bolted to the top of the connecting mechanism, and the limiting mechanism cooperates with the RCD body. The splicing structure includes a docking mechanism, which is bolted to the right side of the RCD body. A positioning mechanism is slidably sleeved on the surface of the docking mechanism, and the positioning mechanism cooperates with the docking mechanism.

[0006] By adopting the above technical solution, and through the splicing structure and the coordinated use of docking and positioning mechanisms, multiple residual current devices (RCDs) can be spliced ​​together to form a single unit. This facilitates the overall installation of multiple RCDs at the point of use, saving time and effort and achieving convenient and flexible installation. The fixing structure, through the coordinated use of connecting, locking, and limiting mechanisms, replaces the conventional screw fixing method, simplifying the installation process and making it easier to install. Furthermore, when one RCD is damaged and needs replacement, it can limit the movement of other RCDs, preventing them from detaching from the fixing structure due to the absence of a single RCD, thus achieving a protective effect.

[0007] The present invention is further configured such that: the connecting mechanism includes two clamping plates, the side of the clamping plate near the main body of the leakage current protection device is in close contact with the main body of the leakage current protection device, two combination blocks are engaged and connected between opposite sides of the two clamping plates, a connecting block is welded to the left side of the combination block, the two combination blocks are engaged and connected to each other through the connecting block, the right combination block is engaged and connected to the right clamping plate through the connecting block, the side of the clamping plate near the engaging mechanism is bolted to the engaging mechanism, and the limiting mechanism is bolted to the top of the combination block.

[0008] By adopting the above technical solution, and by setting up a connection mechanism, multiple residual current device (RCD) bodies can be fixed together as a whole through the coordinated use of clamping plates, combination blocks, and connecting blocks. This facilitates overall installation and achieves a convenient installation effect. At the same time, the number of combination blocks can be adjusted according to different numbers of RCD bodies, thereby facilitating the installation of different numbers of RCD bodies and achieving a flexible use effect.

[0009] The present invention is further configured such that: the engaging mechanism includes a connecting frame, the side of the connecting frame near the card plate is bolted to the card plate, the top and bottom of the connecting frame are rotatably connected to limit blocks, the inner wall of the limit blocks is in close contact with the surface of the mounting bracket, the connecting frame is threaded with a screw rod, the surface of the screw rod is rotatably connected to a connecting disc, the top and bottom of the connecting disc are rotatably connected to a connecting rod, the side of the connecting rod near the limit block is rotatably connected to the limit block.

[0010] By adopting the above technical solution, a locking mechanism is set up. By using a tool to make the screw rotate and move inside the connecting frame, the connecting plate can be moved. At the same time, the movement of the connecting plate will adjust the angle between the rear ends of the two limit blocks through the action of the connecting rod, thereby adjusting the expanded state to the contracted state. This allows the two limit blocks to be locked onto the surface of the mounting bracket. Therefore, the connecting mechanism and the main body of the residual current device can be installed conveniently, which can replace the conventional method of fixing with screws and simplify the installation of the main body of the residual current device.

[0011] The invention is further configured such that: the front side of the screw extends to the front side of the connecting frame, and the limiting block has a fixing groove on the side near the mounting frame that cooperates with the mounting frame.

[0012] By adopting the above technical solution and setting a fixing groove, the limiting block can be easily engaged with the surface of the mounting bracket, thereby improving the fixing stability.

[0013] The present invention is further configured such that: the limiting mechanism includes two slide rails, the slide rails are bolted to the top of the assembly block, a slider is slidably connected inside the right slide rail, a movable part is rotatably connected to the top inside the slider, a fixed cylinder is welded to the top of the movable part, and limiting rods are slidably connected to both sides inside the fixed cylinder. A first spring is welded to the side of the limiting rod near the inner wall of the fixed cylinder, and the side of the first spring near the inner wall of the fixed cylinder is welded to the fixed cylinder.

[0014] By adopting the above technical solution and setting a limiting mechanism, when one of the main bodies of the assembled residual current device (RCD) is damaged and needs to be replaced, the slider can move inside the slide rail to the position of the damaged RCD. The movable part rotates inside the slider, adjusting the fixed cylinder between the two adjacent RCD bodies. This causes the two limiting rods to move relative to each other inside the fixed cylinder and compress the first spring, causing it to contract. The elastic force of the first spring allows the two limiting rods to make close contact with the two adjacent RCD bodies, thus limiting the other RCD bodies. This prevents the connection mechanism from losing its fixing function for other RCD bodies after the damaged RCD body is removed, thereby ensuring the stability of the connection mechanism.

[0015] The present invention is further configured such that: the docking mechanism includes a docking plate, the docking plate is bolted to the right side of the main body of the leakage current protector, two docking blocks are welded to the right side of the docking plate, the docking blocks are slidably connected inside the positioning mechanism, and teeth are welded inside the docking blocks.

[0016] By adopting the above technical solution, a docking mechanism is set up, and the docking block moves inside the positioning mechanism, so that two adjacent residual current device (RCD) bodies can be docked. Under the action of the positioning mechanism, the connection point of the two adjacent RCD bodies is positioned to prevent them from moving randomly, thus facilitating the splicing and installation of multiple RCD bodies.

[0017] The present invention is further configured such that: the positioning mechanism includes a fixed plate, a pushing component and a locking component; the fixed plate is bolted to the left side of the body of the leakage current protector; the inner wall of the fixed plate is in sliding contact with the surface of the docking block; the pushing component is slidably connected inside the fixed plate; the locking component is rotatably connected inside the fixed plate; the locking component is used in conjunction with the pushing component; and one side of the locking component extends into the interior of the teeth.

[0018] By adopting the above technical solution, and by setting up a positioning mechanism, and through the coordinated use of a fixed plate, a pushing component, and a locking component, when two residual current device (RCD) bodies are connected, the pushing component can push the locking component to rotate, causing the locking component to move towards the inner wall of the fixed plate. This allows space for the connecting block to enter. After the connecting block and the fixed plate are connected, the pushing component is reset, thereby resetting the locking component and placing it inside the teeth, thus locking the position of the connecting block. This achieves the effect of positioning the connection point of two adjacent RCD bodies.

[0019] The present invention is further configured such that: the pushing assembly includes two pushing rods, a pushing plate is welded to the front side of the pushing rod, a connecting plate is welded to the rear side of the pushing rod, a second spring is welded to the rear side of the connecting plate, the rear side of the second spring is welded to the inner wall of the fixing plate, and a pushing block is welded to the right side of the pushing rod, the pushing block being used in conjunction with the locking assembly.

[0020] By adopting the above technical solution, a pushing component is set up. The pushing plate drives the pushing rod and the connecting plate to move, and the second spring is compressed. When the pushing rod moves, it drives the pushing block to contact the locking component, thereby pushing the locking component to rotate. The locking component rotates towards the inner wall of the fixed plate, so that the locking component can make room for the movement of the docking mechanism. After the pushing plate is released, the pushing rod can be reset under the elastic force of the second spring, thereby resetting the locking component.

[0021] The invention is further configured such that: there are two push rods, which are slidably connected to the top and bottom of the fixed plate respectively; a limiting block is welded to the left side of the push rod; the surface of the limiting block is in slidable contact with the inner wall of the fixed plate; and a limiting groove is provided on the left side of the inner wall of the fixed plate to cooperate with the limiting block.

[0022] By adopting the above technical solution, by setting the number of push rods to two and slidingly connecting them to the top and bottom of the fixed plate respectively, it is easy to push the locking components at the top and bottom to rotate, so that the locking components can lock the two docking blocks synchronously. By setting the limiting blocks and limiting grooves, the movement stability of the push rods can be maintained.

[0023] The invention is further configured such that: the locking component includes a locking block, the locking block is rotatably connected to the inside of the fixed plate, a mating plate is welded to the left side of the locking block, the mating plate is used in conjunction with the pushing block, an elastic sheet is in close contact with the rear side of the mating plate, and the side of the elastic sheet near the inner wall of the fixed plate is welded to the fixed plate.

[0024] By adopting the above technical solution, a locking component is set up. Under the action of the pushing component, the mating plate is pushed to move, which can drive the locking block to rotate towards the inner wall of the fixed plate. At the same time, the elastic sheet is moved under force. When the pushing component is released, the mating plate and the locking block can be reset under the elastic force of the elastic sheet, so that the locking block is reset to the inside of the teeth, thus realizing the locking work of the mating block.

[0025] In summary, the present invention has the following beneficial effects:

[0026] By setting up a splicing structure and using the docking and positioning mechanisms in combination, multiple residual current devices (RCDs) can be spliced ​​together to form a single unit. This makes it easy to install multiple RCDs as a whole at the location of use, thus saving time and effort in the installation of RCDs and achieving a convenient and flexible installation effect.

[0027] By setting up a fixed structure, and through the coordinated use of connecting, locking, and limiting mechanisms, the conventional screw fixing method can be replaced, simplifying the installation of residual current devices (RCDs) and making them easier to install. At the same time, when one RCD is damaged and needs to be replaced, it can limit the other RCDs, preventing them from detaching from the fixed structure due to the absence of one RCD, thus achieving a protective effect. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2This is a schematic diagram of the fixed structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the connection mechanism structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the engaging mechanism of the present invention;

[0032] Figure 5 This is a schematic diagram of the limiting mechanism structure of the present invention;

[0033] Figure 6 This is a schematic diagram of the splicing structure of the present invention;

[0034] Figure 7 This is a top view of the splicing structure of the present invention;

[0035] Figure 8 This is a schematic diagram of the docking mechanism structure of the present invention;

[0036] Figure 9 This is a schematic diagram of the locking component structure of the present invention;

[0037] Figure 10 This is a schematic diagram of the pushing component structure of the present invention.

[0038] Reference numerals: 1. Main body of residual current device (RCD); 2. Mounting bracket; 3. Mounting unit; 31. Splicing structure; 311. Docking mechanism; 3111. Docking plate; 3112. Docking block; 3113. Tooth; 312. Positioning mechanism; 3121. Fixing plate; 3122. Pushing assembly; 31221. Push rod; 31222. Push plate; 31223. Connecting plate; 31224. Second spring; 31225. Pushing block; 3123. Locking assembly; 31231. Locking block; 31232. Mating plate; 312 33. Elastic sheet; 32. Fixing structure; 321. Connecting mechanism; 3211. Clamping plate; 3212. Combination block; 3213. Connecting block; 322. Engaging mechanism; 3221. Connecting frame; 3222. Limiting block; 3223. Screw; 3224. Connecting disc; 3225. Connecting rod; 323. Limiting mechanism; 3231. Slide rail; 3232. Slider; 3233. Moving part; 3234. Fixing cylinder; 3235. Limiting rod; 3236. First spring; 4. Fixing groove; 5. Limiting block; 6. Limiting groove. Detailed Implementation

[0039] The present invention will be further described in detail below with reference to the accompanying drawings. Example

[0040] refer to Figure 1-5A removable residual current device (RCD) for assembly and installation includes an RCD body 1, a mounting frame 2, and an installation unit 3. The installation unit 3 includes a fixing structure 32, which includes a connecting mechanism 321. The RCD body 1 is snapped into the interior of the connecting mechanism 321. Both sides of the connecting mechanism 321 are bolted with locking mechanisms 322, which are engaged with the surface of the mounting frame 2. A limiting mechanism 323 is bolted to the top of the connecting mechanism 321. The limiting mechanism 323 works in conjunction with the RCD body 1. By setting the fixing structure 32, and through the combined use of the connecting mechanism 321, locking mechanism 322, and limiting mechanism 323, the conventional screw fixing method can be replaced, simplifying the installation of the RCD and making it easier to install. Furthermore, when one RCD is damaged and needs replacement, it can limit the movement of other RCDs, preventing them from detaching from the fixing structure 32 due to the absence of a certain RCD, thus achieving a protective effect.

[0041] like Figure 3 As shown, the connecting mechanism 321 includes two locking plates 3211. The side of the locking plate 3211 closest to the body 1 of the residual current device (RCD) is in close contact with the RCD body 1. Two assembly blocks 3212 are engaged between opposite sides of the two locking plates 3211. A connecting block 3213 is welded to the left side of the assembly block 3212. The two assembly blocks 3212 are engaged with each other through the connecting block 3213. The right assembly block 3212 is engaged with the right locking plate 3211 through the connecting block 3213. The side of the locking plate 3211 closest to the engaging mechanism 322 is respectively engaged with the engaging mechanism 3211. 22. The limiting mechanism 323 is bolted to the top of the combination block 3212. By setting the connecting mechanism 321, and through the cooperation of the clamping plate 3211, the combination block 3212 and the connecting block 3213, multiple residual current device bodies 1 can be fixed together to form a whole, which facilitates the overall installation and achieves the effect of convenient installation. At the same time, the number of combination blocks 3212 can be adjusted according to different numbers of residual current device bodies 1, so as to facilitate the installation of different numbers of residual current device bodies 1 and achieve the effect of flexible use.

[0042] like Figure 4As shown, the locking mechanism 322 includes a connecting frame 3221. The side of the connecting frame 3221 closest to the locking plate 3211 is bolted to the locking plate 3211. Limiting blocks 3222 are rotatably connected to the top and bottom of the connecting frame 3221. The inner wall of the limiting block 3222 is in close contact with the surface of the mounting bracket 2. A screw 3223 is threaded into the inside of the connecting frame 3221. A connecting disc 3224 is rotatably connected to the surface of the screw 3223. A connecting rod 3225 is rotatably connected to the top and bottom of the connecting disc 3224. The side of the connecting rod 3225 closest to the limiting block 3222 is rotatably connected to the limiting block 3222. By setting... The locking mechanism 322, by using a tool to rotate and move the screw 3223 inside the connecting frame 3221, can drive the connecting plate 3224 to move. The movement of the connecting plate 3224, in turn, through the action of the connecting rod 3225, causes the rear ends of the two limiting blocks 3222 to adjust their relative angle, thereby changing the expanded state to the contracted state. This allows the two limiting blocks 3222 to be locked onto the surface of the mounting bracket 2. Therefore, the connecting mechanism 321 and the leakage current protection device body 1 can be conveniently installed, which can replace the conventional method of fixing with screws and simplify the installation of the leakage current protection device body 1.

[0043] like Figure 4 As shown, the front side of the screw 3223 extends to the front side of the connecting frame 3221. The limiting block 3222 has a fixing groove 4 on the side near the mounting frame 2 that works with the mounting frame 2. By setting the fixing groove 4, the limiting block 3222 can be easily engaged with the surface of the mounting frame 2, thereby improving the fixing stability.

[0044] like Figure 5As shown, the limiting mechanism 323 includes two slide rails 3231, which are bolted to the top of the assembly block 3212. A slider 3232 is slidably connected inside the right slide rail 3231. A movable part 3233 is rotatably connected to the top of the slider 3232. A fixed cylinder 3234 is welded to the top of the movable part 3233. Limiting rods 3235 are slidably connected to both sides inside the fixed cylinder 3234. A first spring 3236 is welded to the side of the limiting rod 3235 closest to the inner wall of the fixed cylinder 3234. The side of the first spring 3236 closest to the inner wall of the fixed cylinder 3234 is welded to the fixed cylinder 3234. By setting the limiting mechanism 323, when a component of the assembled residual current device body 1 is damaged and needs replacement, it can be moved inside the slide rail 3231 by the slider 3232. The movement causes the slider 3232 to move to the position of the damaged residual current device (RCD) body 1. The movable part 3233 rotates inside the slider 3232, causing the fixed cylinder 3234 to be adjusted between two adjacent RCD bodies 1. The two limiting rods 3235 move relative to each other inside the fixed cylinder 3234 and compress the first spring 3236, causing it to contract. Through the elastic force of the first spring 3236, the two limiting rods 3235 can make close contact with the two adjacent RCD bodies 1, thereby limiting the other RCD bodies 1. This prevents the connecting mechanism 321 from losing its fixing function for other RCD bodies 1 after the damaged RCD body 1 is removed, thus ensuring the fixing stability of the connecting mechanism 321.

[0045] Brief description of the usage process: The number of assembly blocks 3212 can be increased or decreased depending on the number of residual current device (RCD) bodies 1 to be installed. First, one side of each of the two retaining plates 3211 contacts the side of the adjacent RCD body 1. Then, the assembly blocks 3212 are engaged with each other using the connecting block 3213. Next, the assembly block 3212 engages with the side wall of another retaining plate 3211, thus ensuring tight contact between the two retaining plates 3211 and the RCD body 1 under the action of the assembly block 3212. Then, by using a tool, the screw 3223 rotates and moves inside the connecting frame 3221, which moves the connecting plate 3224. Simultaneously, the movement of the connecting plate 3224, through the action of the connecting rod 3225, adjusts the relative angle of the rear ends of the two limiting blocks 3222, thereby changing the expanded state to a contracted state and locking the limiting blocks 3222. The residual current device (RCD) body 1 is mounted on the surface of the mounting bracket 2, thereby installing it in the usage position. When one of the assembled RCD bodies 1 is damaged and needs to be replaced, the slider 3232 can move inside the slide rail 3231 to move the slider 3232 to the position of the damaged RCD body 1. The movable part 3233 rotates inside the slider 3232, adjusting the fixed cylinder 3234 between the two adjacent RCD bodies 1 of the damaged RCD body 1. The two limiting rods 3235 move relative to each other inside the fixed cylinder 3234 and compress the first spring 3236 to retract. Through the elastic force of the first spring 3236, the two limiting rods 3235 can make close contact with the two adjacent RCD bodies 1, thereby limiting the other RCD bodies 1 and preventing the RCD body 1 from detaching from the clamping plate 3211. Example

[0046] refer to Figure 6-10 The installation unit 3 includes a splicing structure 31, which includes a docking mechanism 311. The docking mechanism 311 is bolted to the right side of the main body 1 of the residual current device (RCD). A positioning mechanism 312 is slidably sleeved on the surface of the docking mechanism 311. The positioning mechanism 312 works in conjunction with the docking mechanism 311. By setting up the splicing structure 31 and using the docking mechanism 311 and the positioning mechanism 312 in conjunction, multiple RCDs can be spliced ​​together to form a main body. This makes it easy to install multiple RCDs as a whole at the place of use, thus saving time and effort in the installation of the RCD and achieving a convenient and flexible installation effect.

[0047] like Figure 8As shown, the docking mechanism 311 includes a docking plate 3111, which is bolted to the right side of the residual current device (RCD) body 1. Two docking blocks 3112 are welded to the right side of the docking plate 3111. The docking blocks 3112 are slidably connected inside the positioning mechanism 312. Teeth 3113 are welded inside the docking blocks 3112. By setting up the docking mechanism 311, the docking blocks 3112 can move inside the positioning mechanism 312, allowing two adjacent RCD bodies 1 to be docked. Under the action of the positioning mechanism 312, the connection point of the two adjacent RCD bodies 1 is positioned to prevent them from moving randomly, thus facilitating the splicing and installation of multiple RCD bodies 1.

[0048] like Figure 7 As shown, the positioning mechanism 312 includes a fixed plate 3121, a pushing component 3122, and a locking component 3123. The fixed plate 3121 is bolted to the left side of the residual current device (RCD) body 1. The inner wall of the fixed plate 3121 slides in contact with the surface of the mating block 3112. The pushing component 3122 is slidably connected inside the fixed plate 3121, and the locking component 3123 is rotatably connected inside the fixed plate 3121. The locking component 3123 cooperates with the pushing component 3122. One side of the locking component 3123 extends into the interior of the teeth 3113. By setting the positioning mechanism 312, the fixed plate 3121, the pushing component 3122, and the locking component 3123 can be used to position the RCD body 1. When the locking component 3123 is used in conjunction with the two residual current device (RCD) bodies 1, the pushing component 3122 can push the locking component 3123 to rotate, causing the locking component 3123 to move towards the inner wall of the fixing plate 3121, which can leave space for the docking block 3112 to enter. After the docking block 3112 and the fixing plate 3121 are docked, the pushing component 3122 is reset, thereby resetting the locking component 3123 and placing it inside the teeth 3113, so that the locking component 3123 locks the position of the docking block 3112, which can achieve the effect of positioning the connection of the two adjacent RCD bodies 1.

[0049] like Figure 10As shown, the pushing assembly 3122 includes two pushing rods 31221. A push plate 31222 is welded to the front side of the pushing rod 31221, and a connecting plate 31223 is welded to the rear side of the pushing rod 31221. A second spring 31224 is welded to the rear side of the connecting plate 31223. The rear side of the second spring 31224 is welded to the inner wall of the fixing plate 3121. A pushing block 31225 is welded to the right side of the pushing rod 31221. The pushing block 31225 works in conjunction with the locking assembly 3123. By setting the pushing assembly 3122, the push plate 31222 drives the pushing rod 31221. When push rod 31221 and connecting plate 31223 move, the second spring 31224 contracts under force. As push rod 31221 moves, it drives push block 31225 to contact locking assembly 3123, thereby pushing locking assembly 3123 to rotate. This causes locking assembly 3123 to rotate towards the inner wall of fixed plate 3121, allowing locking assembly 3123 to provide sufficient space for the movement of docking mechanism 311. After push plate 31222 is released, push rod 31221 can be reset under the elastic force of second spring 31224, thereby resetting locking assembly 3123.

[0050] like Figure 7 and Figure 10 As shown, there are two push rods 31221, which are slidably connected to the top and bottom of the fixed plate 3121 respectively. A limiting block 5 is welded to the left side of the push rod 31221. The surface of the limiting block 5 is in sliding contact with the inner wall of the fixed plate 3121. A limiting groove 6 is provided on the left side of the inner wall of the fixed plate 3121 to cooperate with the limiting block 5. By setting the number of push rods 31221 to two and slidably connected to the top and bottom of the fixed plate 3121 respectively, it is easy to push the locking components 3123 at the top and bottom to rotate. Thus, the locking components 3123 can lock the two docking blocks 3112 synchronously. By setting the limiting block 5 and the limiting groove 6, the movement stability of the push rod 31221 can be maintained.

[0051] like Figure 9As shown, a mating plate 31232 is welded to the left side of the locking block 31231. The mating plate 31232 works in conjunction with the pushing block 31225. An elastic piece 31233 is in close contact with the rear side of the mating plate 31232. The side of the elastic piece 31233 closest to the inner wall of the fixing plate 3121 is welded to the fixing plate 3121. By setting the locking component 3123, the mating plate 31232 will be pushed to move under the action of the pushing component 3122, thereby driving the locking block 31231 to rotate towards the inner wall of the fixing plate 3121. At the same time, the elastic piece 31233 will be moved under force. When the pushing component 3122 is released, the mating plate 31232 and the locking block 31231 can be reset under the elastic force of the elastic piece 31233, thereby resetting the locking block 31231 to the inside of the tooth 3113, realizing the locking operation of the mating block 3112.

[0052] Brief description of usage: During the assembly of the main body 1 of the residual current device (RCD), the push plate 31222 drives the push rod 31221 and the connecting plate 31223 to move. Simultaneously, the movement of the push rod 31221 causes the limiting block 5 to move inside the limiting groove 6, and the second spring 31224 to contract under force. The movement of the push rod 31221 also causes the push block 31225 to contact the mating plate 31232, thereby pushing the mating plate 31232 to move. This allows the locking block 31231 to rotate towards the inner wall of the fixed plate 3121, while simultaneously causing the elastic sheet 31233 to move under force, allowing the locking block 31231 to be mated. The moving space of block 3112 is made with a margin, and then the mating block 3112 moves inside the fixing plate 3121, so that the mating plate 3111 contacts the fixing plate 3121, thereby driving the two residual current device bodies 1 to dock. By releasing the push of the push plate 31222, the push rod 31221 can be reset under the elastic force of the second spring 31224. At the same time, under the action of the elastic plate 31233, the mating plate 31232 and the locking block 31231 are reset, and the locking block 31231 moves into the inside of the tooth 3113, thereby realizing the locking work at the connection of the two residual current device bodies 1.

[0053] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A pluggable combination-installed leakage protector, comprising a leakage protector main body (1), a mounting rack (2) and a mounting unit (3), characterized in that: The mounting unit (3) comprises a splicing structure (31) and a fixing structure (32), the fixing structure (32) comprises a connecting mechanism (321), the leakage protector body (1) is clamped in the connecting mechanism (321), clamping mechanisms (322) are bolted on the two sides of the connecting mechanism (321), the clamping mechanisms (322) are clamped on the surface of the mounting rack (2), a limiting mechanism (323) is bolted on the top of the connecting mechanism (321), and the limiting mechanism (323) is used in cooperation with the leakage protector body (1); the splicing structure (31) comprises a butt joint mechanism (311), the butt joint mechanism (311) is bolted on the right side of the leakage protector body (1), a positioning mechanism (312) is slidably sleeved on the surface of the butt joint mechanism (311), and the positioning mechanism (312) is used in cooperation with the butt joint mechanism (311); The connecting mechanism (321) comprises two clamping plates (3211), one side of the clamping plate (3211) close to the leakage protector body (1) is in close contact with the leakage protector body (1), two assembly blocks (3212) are clamped and connected between the opposite sides of the two clamping plates (3211), a connecting block (3213) is welded to the left side of the assembly block (3212), the two assembly blocks (3212) are clamped and connected through the connecting block (3213), the right assembly block (3212) is clamped and connected with the right clamping plate (3211) through the connecting block (3213), and the side, close to the clamping mechanism (322), of the clamping plate (3211) is bolted with the clamping mechanism (322); and the limiting mechanism (323) is bolted on the top of the assembly block (3212). The limiting mechanism (323) comprises two sliding rails (3231), the sliding rails (3231) are bolted on the top of the assembly block (3212), a sliding block (3232) is slidably connected in the right sliding rail (3231), a movable element (3233) is rotatably connected to the top of the sliding block (3232), a fixing cylinder (3234) is welded to the top of the movable element (3233), limiting rods (3235) are slidably connected on the two sides in the fixing cylinder (3234), first springs (3236) are welded to the sides, close to the inner walls of the fixing cylinder (3234), of the limiting rods (3235), and the sides, close to the inner walls of the fixing cylinder (3234), of the first springs (3236) are welded with the fixing cylinder (3234). When some of the leakage protector body (1) formed by combination needs to be replaced due to damage, the sliding block (3232) can be moved inside the sliding rail (3231), so that the sliding block (3232) is moved to the position of the damaged leakage protector body (1), and the movable element (3233) is rotated inside the sliding block (3232), so that the fixing cylinder (3234) is adjusted to the position between the two leakage protector bodies (1) adjacent to the damaged leakage protector body (1), and the two limiting rods (3235) are relatively moved towards the inside of the fixing cylinder (3234) and press the first spring (3236) to make it shrink. The elastic force of the first spring (3236) can make the two limiting rods (3235) tightly contact with the adjacent two leakage protector bodies (1), so as to limit the other leakage protector bodies (1). When the damaged leakage protector body (1) is removed, the connecting mechanism (321) loses the fixing effect on the other leakage protector bodies (1), so as to ensure the fixing stability of the connecting mechanism (321).

2. The arc fault circuit interrupter of claim 1, wherein: The clamping mechanism (322) comprises a connecting frame (3221), one side of the connecting frame (3221) close to the clamping plate (3211) is hinged to the clamping plate (3211), the top and bottom of the inside of the connecting frame (3221) are rotationally connected with limiting blocks (3222), the inner wall of the limiting block (3222) is in close contact with the surface of the mounting frame (2), the inside of the connecting frame (3221) is threadedly connected with a screw rod (3223), the surface of the screw rod (3223) is rotationally connected with a connecting disc (3224), the top and bottom of the inside of the connecting disc (3224) are rotationally connected with connecting rods (3225), and one side of the connecting rod (3225) close to the limiting block (3222) is rotationally connected with the limiting block (3222).

3. The arc fault circuit interrupter of claim 2, wherein: The front side of the screw rod (3223) extends to the front side of the connecting frame (3221), and the side of the limiting block (3222) close to the mounting frame (2) is provided with a fixing groove (4) matched with the mounting frame (2).

4. The arc fault circuit interrupter of claim 1, wherein: The butt joint mechanism (311) comprises a butt joint plate (3111), the butt joint plate (3111) is hinged to the right side of the leakage protector body (1), two butt joint blocks (3112) are welded to the right side of the butt joint plate (3111), the butt joint blocks (3112) are slidingly connected in the inside of the positioning mechanism (312), and the inside of the butt joint block (3112) is welded with a tooth (3113).

5. The arc fault circuit interrupter of claim 4, wherein: The positioning mechanism (312) comprises a fixed plate (3121), a pushing assembly (3122) and a locking assembly (3123), the fixed plate (3121) is bolted on the left side of the leakage protector body (1), the inner wall of the fixed plate (3121) is in sliding contact with the surface of the butt block (3112), the pushing assembly (3122) is slidingly connected in the fixed plate (3121), the locking assembly (3123) is rotatably connected in the fixed plate (3121), the locking assembly (3123) is used in cooperation with the pushing assembly (3122), and one side of the locking assembly (3123) extends to the inside of the gear teeth (3113).

6. The arc fault circuit interrupter of claim 5, wherein: The pushing assembly (3122) comprises two pushing rods (31221), the front side of the pushing rod (31221) is welded with a push plate (31222), the rear side of the pushing rod (31221) is welded with a connecting plate (31223), the rear side of the connecting plate (31223) is welded with a second spring (31224), the rear side of the second spring (31224) is welded with the inner wall of the fixed plate (3121), the right side of the pushing rod (31221) is welded with a pushing block (31225), and the pushing block (31225) is used in cooperation with the locking assembly (3123).

7. The arc fault circuit interrupter of claim 6, wherein: The number of the pushing rod (31221) is two, and the pushing rod (31221) is slidingly connected to the top and the bottom of the fixed plate (3121) respectively, the left side of the pushing rod (31221) is welded with a limiting block (5), the surface of the limiting block (5) is in sliding contact with the inner wall of the fixed plate (3121), and the left side of the inner wall of the fixed plate (3121) is provided with a limiting groove (6) used in cooperation with the limiting block (5).

8. The arc fault circuit interrupter of claim 5, wherein: The locking assembly (3123) comprises a locking block (31231), the locking block (31231) is rotatably connected in the fixed plate (3121), the left side of the locking block (31231) is welded with a matching plate (31232), the matching plate (31232) is used in cooperation with the pushing block (31225), the rear side of the matching plate (31232) is in close contact with an elastic sheet (31233), and the side, close to the inner wall of the fixed plate (3121), of the elastic sheet (31233) is welded with the fixed plate (3121).

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