Isolator with power distribution function

Abstract

The utility model relates to signal isolator technical field especially is a kind of with distribution function isolator, including fixed seat, moving frame and threaded rod, the top of fixed seat is equipped with slot, for installing isolator shell, moving frame is " " shape, the bottom fixedly connected with the fixed hole shape same fixed plate of guide rail of moving frame;Moving frame slides in through slot, and one row of comb tooth plate is fixedly connected in the bottom of through slot;Threaded rod rotationally connects in the bottom groove of fixed seat, and the both sides of threaded rod are provided with symmetrical screw thread, and two symmetrical adjustable clamping plates are respectively installed on both sides screw thread.The utility model, by setting up the through slot of moving frame insertion fixed seat, realize the locking cooperation of moving frame and fixed seat, prevent the left and right sliding of isolator on guide rail due to vibration, shaking and other, and need not complex bolt fixation or additional punching, it is easy to operate and time-saving and labor-saving, and it is convenient for isolator to be repositioned on guide rail.

Description

Technical Field

[0001] The utility model relates to the technical field of signal isolators, and specifically relates to an isolator with a power distribution function. Background Technique

[0002] As a key device in the field of industrial automation, a DC signal isolator can realize the input processing of DC signals, isolation interference suppression, and multi-channel isolation output (such as one input corresponding to three-channel isolation output). It adopts a DC power supply mode to ensure the mutual isolation between the power supply, input, output, and each channel, and can stably cooperate with various instruments, DCS, PLC and other systems. This type of device usually adopts a standard 35mm DIN rail clip-on installation, equipped with pluggable wiring plug terminals, and realizes convenient wiring through spring pressing connection, meeting the requirements of dense installation and flexible disassembly in industrial sites.

[0003] However, there are still obvious defects in the current signal isolator during the installation process with the rail: on the one hand, most existing devices use a single clamping method to connect with the rail, which is easily affected by external forces such as external vibration and cable dragging and may slide. If it needs to be fixed, external bolts are required, which is cumbersome to operate and extremely inconvenient in a narrow space; on the other hand, the spacing of the clamping structure at the bottom of the isolator is fixed. When encountering rails with different width specifications, the installation range is often limited due to insufficient adaptability, making it difficult to meet the installation requirements of diverse industrial scenarios. Content of the Utility Model

[0004] The purpose of the utility model is to provide an isolator with a power distribution function to solve the problems proposed in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: An isolator with a power distribution function, comprising: A fixed seat, the top of the fixed seat is provided with a slot for installing the isolator housing, the bottom of the fixed seat has a bottom groove, and through grooves are opened in the inner edges on both sides of the fixed seat; A moving frame, the moving frame is in a "C" shape, the moving frame is inserted into the through groove, a fixing plate with the same shape as the fixing hole of the rail is fixedly connected to the bottom of the moving frame, a jack is opened on the moving frame, and a plug board is arranged in the jack; Concave arc-shaped grooves are opened on both sides of the plug board, an arc-shaped elastic sheet is fixedly connected above the arc-shaped groove, the initial state of the arc-shaped elastic sheet is convex outward and abuts against the inner wall of the jack. When the plug board is pulled out of the jack, the arc-shaped elastic sheet contracts and deforms towards the inside of the arc-shaped groove under the extrusion of the inner wall of the jack; The threaded rod is rotatably connected to the bottom groove of the fixed seat. The threaded rod has symmetrical threads on both sides, and two symmetrical adjustable clamps are installed on the threads on both sides respectively.

[0006] Furthermore, the movable frame slides within the through groove, causing the fixed plate to move vertically and extend into the fixed hole of the guide rail to fix the fixed seat. A row of comb plates is fixedly connected to the bottom of the through groove. By pulling the insert plate, the insert plate is engaged with the comb plate, so that the movable frame after movement is relatively fixed to the fixed seat.

[0007] Furthermore, a handle is fixedly connected to the rear end of the insert plate, and the shape of the front end of the insert plate matches the shape of the tooth groove of the comb plate. The front end can be embedded in the tooth groove of the comb plate to achieve stable positioning. Anti-detachment blocks are also fixedly connected to both sides of the front end of the insert plate to prevent the insert plate from falling out of the insertion hole.

[0008] Furthermore, the through groove extends from top to bottom through the inner walls of both sides of the fixed base, forming a channel for the movable frame to slide up and down. The comb plate is fixedly connected to the bottom inner wall of the through groove along its length, with its teeth facing the insertion hole of the movable frame. The through groove has a first clearance groove directly above the comb plate to provide space for the insertion plate to move with the movable frame.

[0009] Furthermore, limiting grooves are provided on both sides of the top of the through groove, and a limiting block is fixedly connected to the top of the movable frame. The shape of the limiting block is adapted to the shape of the limiting groove. When the movable frame slides to the bottom, the limiting block abuts against the inner wall of the end of the limiting groove to form a limit, preventing the movable frame from detaching from the through groove.

[0010] Furthermore, the two sides of the threaded rod extend to the outside of the two sides of the fixed seat, and the two ends of the threaded rod are fixedly connected to knobs. When the knobs are turned, the threaded rod rotates synchronously. Symmetrical reverse threads are provided on both sides of the threaded rod. The clamping plates installed on the threads on both sides will move synchronously in opposite directions under the action of thread transmission, thereby realizing the clamping or loosening adjustment of both sides of the guide rail.

[0011] Furthermore, a guide rod is fixedly connected between the bottom grooves, and the guide rod passes horizontally through a pre-set guide hole above the card plate. When the card plate moves horizontally under the drive of the threaded rod, the guide rod provides guidance and constraint to the movement trajectory of the card plate.

[0012] Furthermore, the middle part of the threaded rod is a smooth part, and symmetrical annular limiting rings are fixedly sleeved on both sides of the smooth part.

[0013] Furthermore, hinge seats are fixedly connected to both sides of the fixed base, and mounting ears are hinged inside the hinge seats, with mounting holes provided on the mounting ears.

[0014] Furthermore, the mounting ear has two legs, with a second clearance groove between the two legs.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This utility model, by setting up an "U"-shaped moving frame, a comb plate, an insert plate, and an arc-shaped spring, when the moving frame drives the fixed plate to insert into the guide rail fixing hole, the front end of the insert plate is embedded in the comb plate tooth groove, and the arc-shaped spring protrudes outward and abuts against the inner wall of the insert hole to form a limit, thereby realizing the stable locking of the moving frame and the fixed seat, effectively preventing the isolator from sliding left and right on the guide rail due to vibration, shaking, etc.

[0016] This utility model allows for easy adjustment of the position of the movable frame. Simply pull the handle to retract the arc-shaped spring to release the constraint between the insert plate and the comb plate. After sliding into place, push the insert plate to lock it in place. No complicated bolt fixing or additional drilling is required. The operation is simple, time-saving, and labor-saving, and it is also convenient for the isolator to be moved and adjusted on the guide rail.

[0017] This utility model, by setting a through groove, a limiting groove, and a limiting block, provides precise guidance for the movable frame and restricts lateral swaying by fitting the inner wall with the vertical part of the movable frame; the limiting groove and the limiting block cooperate to form a mechanical limit, preventing the movable frame from sliding excessively and detaching from the through groove; after the fixing plate is inserted into the guide rail fixing hole, it further provides direct support force from the guide rail to the fixing seat and isolator, improving the overall structural stability after installation.

[0018] This invention, by setting a threaded rod, a clamping plate, and a guide rod, allows the rotating knob to drive the clamping plates on both sides to move synchronously in opposite directions in the horizontal direction. The guide rod forms a rigid constraint on the trajectory of the clamping plate, which can adapt to guide rails of different widths and specifications, and is especially suitable for guide rails of the same thickness but different heights, thus improving the universality of installation. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This utility model Figure 1 Another perspective on the 3D schematic diagram.

[0021] Figure 3 This is a three-dimensional schematic diagram of the fixed base of this utility model from an elevation perspective.

[0022] Figure 4 This is a three-dimensional schematic diagram of the fixed base, movable frame, and insert plate of this utility model.

[0023] Figure 5 This is a three-dimensional schematic diagram of the movable frame and insert plate of this utility model, which are fixed together with the comb plate.

[0024] Figure 6This is a three-dimensional schematic diagram of the card plate moving structure of the bottom groove of the fixed base and the comb plate structure in the through groove of this utility model.

[0025] Figure 7 This is a three-dimensional schematic diagram of the mounting ear of this utility model.

[0026] Figure 8 This is a schematic diagram of the isolator principle of this utility model.

[0027] Figure 9 This is a wiring diagram for one input and one output of the isolator of this utility model.

[0028] Figure 10 This is the wiring diagram for the isolator of this utility model, which has one input and two outputs.

[0029] Figure 11 This is the wiring diagram for the two inputs and two outputs of the isolator of this utility model.

[0030] In the diagram: 1-Outer shell, 2-Fixed base, 201-Slot, 202-First clearance groove, 203-Limit groove, 204-Through groove, 3-Guide rail, 4-Fixed hole, 5-Bottom groove, 6-Moving frame, 601-Limit block, 602-Insertion hole, 7-Fixed plate, 8-Mounting ear, 801-Second clearance groove, 802-Mounting hole, 803-Hinge seat, 9-Knob, 10-Threaded rod, 11-Limit ring, 12-Smooth part, 13-Clamping plate, 14-Guide rod, 15-Comb plate, 16-Insertion plate, 17-Handle, 18-Arc-shaped spring, 19-Arc-shaped groove, 20-Anti-detachment block. Detailed Implementation

[0031] 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.

[0032] In the description of this utility model, it should be noted that the terms "upper end," "lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., 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 utility model and simplifying the description, and do not 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 utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Please see Figures 1 to 11 This utility model provides a technical solution: An isolator with power distribution function includes a mounting base 2. The top of the mounting base 2 has a slot 201 for fitting an isolator housing 1. The housing 1 can be precisely inserted into the slot 201 to achieve longitudinal positioning, ensuring stable assembly between the housing 1 and the mounting base 2. The bottom of the mounting base 2 has a bottom groove 5 for accommodating transmission components. The two sides of the mounting base 2 have symmetrical through grooves 204 penetrating the inner wall, which serve as channels for moving the fixed structure.

[0035] In this embodiment, the fixing base 2 can be a shell with a slot 201 formed by tightening two half-shells together with bolts. Shell material: flame-retardant ABS+PC (polycarbonate) material.

[0036] The outer shell 1 is inserted into the slot 201 to fix it to the mounting base 2. There can be a certain friction between the outer shell 1 and the slot 201 to prevent the outer shell 1 from coming out of the slot 201. Alternatively, it can be fixed with bolts after insertion. The insert plate 16 and the comb plate 15 can be installed on only one side of the mounting base 2 or symmetrically on both sides.

[0037] A DC / DC driver, such as the LT3999, is installed inside the housing 11 to isolate the power supply of the isolated signal, ensuring absolute independence between the transformed signal, power supply, and ground. The model, type, and size of the DC / DC driver can be flexibly selected by those skilled in the art based on actual accuracy and needs, and thus installed inside the housing 11. This is a conventional technical method and will not be described in detail here.

[0038] In the existing technology, signal isolators, as important power distribution and signal processing equipment, are mostly installed using guide rails 3. The connection between traditional isolators and guide rails 3 often relies on a single clip or simple bolt fixation. This is prone to sliding left and right on the guide rails 3 due to external factors such as vibration during equipment operation, shaking during cabinet transportation, and dragging of external cables, which affects the stability of signal transmission between devices. Long-term friction may also cause wear on the guide rails 3 or the isolator housing. To prevent the isolator from sliding left and right on the guide rails 3, rigid limiting is achieved through a fixed structure.

[0039] The fixing structure includes a movable frame 6 and a fixing plate 7. The movable frame 6 is designed with a "C" - shaped structure, and its two vertical segments p on both sides are inserted into the through - slots 204 of the fixed seat 2 and can slide up and down along the through - slots 204. A fixing plate 7 is fixedly connected to the horizontal segment q at the bottom of the movable frame 6. The shape of the fixing plate 7 exactly matches the preset fixing holes 4 of the guide rail 3. When the movable frame 6 slides down along the through - slots 204, the fixing plate 7 can accurately extend into the fixing holes 4 of the guide rail 3, and the vertical limit of the isolator with respect to the guide rail 3 is achieved through physical embedding, thereby preventing the isolator from sliding left and right on the guide rail 3.

[0040] A row of comb - tooth plates 15 is fixedly connected to the bottom of the through - slot 204 along the length direction. The tooth grooves of the comb - tooth plates 15 are evenly spaced. At the corresponding position of the movable frame 6, a jack 602 is provided, and a plug - board 16 is inserted into the jack 602. The front - end shape of the plug - board 16 is adapted to the tooth grooves of the comb - tooth plates 15, and the position of the movable frame 6 can be locked by inserting into the tooth grooves. A first avoidance groove 202 is also provided above the comb - tooth plates 15 in the through - slot 204, providing sufficient space for the plug - board 16 to move up and down with the movable frame 6 and avoiding interference between the plug - board 16 and the inner wall of the through - slot 204.

[0041] As Figure 5 shown, the overall shape of the movable frame 6 is "C" - shaped. The material of the movable frame 6 can be metal such as copper sheet, or non - metal such as TPU (thermoplastic polyurethane), etc. Initially, the plug - board 16 is near the top of the through - slot 204. At this time, the top end of the plug - board 16 is adaptively inserted into the tooth grooves of the comb - tooth plates 15 at the inner top of the through - slot 204, and the fixing plate 7 is located between the two clamping plates 13 of the bottom groove 5 and does not protrude beyond the clamping plates 13, nor does it affect the installation between the clamping plates 13 and the guide rail 3. The tooth grooves of the comb - tooth plates 15 are wavy, and the tip shape of the plug - board 16 matches the shape of the tooth grooves.

[0042] It should be noted that the width of the bottom and top openings of the through - slot 204 fits the outer shape of the vertical segments p of the "C" - shaped movable frame 6. Through a tight clearance fit, lateral constraints are formed on both sides of the movable frame 6, restricting the micro - sway generated during the up - and - down sliding of the movable frame 6. And the width of the middle part of the through - slot 204 corresponding to the installation position of the comb - tooth plates 15 is greater than the width of the vertical part of the movable frame 6, reserving sufficient space for the plug - and - unplug action of the plug - board 16 and its clamping cooperation with the comb - tooth plates 15, ensuring that the plug - board 16 can smoothly embed into or disengage from the tooth grooves of the comb - tooth plates 15, while avoiding frictional interference with the inner wall of the through - slot 204.

[0043] As Figure 5The insert plate 16 has concave arc-shaped grooves 19 on both sides, and an arc-shaped spring piece 18 is fixedly connected above the arc-shaped groove 19. In the initial state, the spring piece protrudes outward and abuts against the inner wall of the insertion hole 602 to form a pre-tightening force. When it is necessary to adjust the position of the moving frame 6, the handle 17 at the rear end of the insert plate 16 is pulled. The arc-shaped spring piece 18 retracts into the arc-shaped groove 19 under the pressure of the inner wall of the insertion hole 602, reducing the insertion and removal resistance and making it easy to pull out the insert plate 16. Anti-detachment blocks 20 are also fixed on both sides of the front end of the insert plate 16. When the insert plate 16 is pulled outward, it can prevent the insert plate 16 from completely detaching from the insertion hole 602 and being lost. When the insert plate 16 is inserted into the position, the front end is embedded in the tooth groove of the comb plate 15, and the anti-detachment block 20 abuts against the outer wall of the fixed base 2 to ensure the relative fixation of the moving frame 6 and the fixed base 2.

[0044] In this embodiment, in the initial state, the front end of the insert plate 16 is engaged with the tooth groove of the comb plate 15 at the top of the through slot 204, and the arc-shaped spring piece 18 protrudes outward and abuts against the inner wall of the insertion hole 602 to form a pre-tightening; when the isolator is placed in the preset position of the guide rail 3, the operator pinches the anti-slip texture on the handle 17 and applies force outward, the insert plate 16 is pulled out, and the arc-shaped spring piece 18 retracts into the arc groove 19 under the pressure of the inner wall of the insertion hole 602, releasing the engagement constraint between the insert plate 16 and the comb plate 15; then it slides downward. The movable frame 6 moves the fixed plate 7 downwards synchronously until the fixed plate 7 is precisely inserted into the fixed hole 4 of the guide rail 3. After the movable frame 6 slides into place, it pushes the front end of the insertion plate 16 to embed into the tooth groove of the comb plate 15 at the corresponding position. At this time, the arc-shaped spring piece 18 is released from the restraint of the inner wall of the insertion hole 602, automatically protrudes outward to restore the initial state and abuts against the inner wall of the insertion hole 602. With the abutment of the anti-detachment block 20 against the outer wall of the fixed seat 2, the movable frame 6 and the fixed seat 2 are firmly locked, and the isolator is fixed.

[0045] The handle 17 has anti-slip protrusions d on one or both sides as anti-slip texture, providing additional friction when pulled. The end of the comb plate 15 does not extend outside the through groove 204. The arc-shaped spring 18 can be a metal spring, such as a stainless steel spring, and its elasticity can be flexibly selected according to actual use. After squeezing the handle 17 and applying a certain pulling or pushing force, the arc-shaped spring 18 can be squeezed into the arc-shaped groove 19, thereby achieving the purpose of pushing and pulling the insert plate 16. The length of the insert plate 16 is as short as possible while ensuring relative fixation between the movable frame 6 and the outer shell 1. Similarly, the handle 17 is as short as possible while still being able to be squeezed by hand, which is beneficial for the side-by-side installation of the isolators.

[0046] Because of the anti-slip protrusions d designed on one or both sides of the handle 17, it is easy to pinch the handle 17 with the thumb and forefinger during operation. The handle 17 is strip-shaped. When the insert plate 16 is fully inserted into the tooth groove between two adjacent comb plates 15, the arc-shaped spring piece 18 is fully ejected and located inside the vertical segment p. It cooperates with the insertion hole 602 to prevent the handle 17 from retracting on its own. When it is necessary to remove the fixing plate 7 from the fixing hole 4, pinch the handle 17 and pull it outward, thereby causing the arc-shaped spring piece 18 to move into the arc-shaped groove 19. Then the insert plate 16 is smoothly removed from the tooth groove of the comb plate 15, which allows the upward sliding frame 6 to be moved, thereby completely separating the fixing plate 7 from the fixing hole 4.

[0047] like Figure 4 The top of the through groove 204 is symmetrically provided with limiting grooves 203 on both sides. The top of the movable frame 6 is correspondingly fixed with a limiting block 601. The shape of the limiting block 601 is adapted to the limiting groove 203 and slides synchronously with the movable frame 6. When the movable frame 6 slides to the bottom limit position, the limiting block 601 abuts against the inner wall of the end of the limiting groove 203 to form a mechanical limit, preventing the movable frame 6 from disengaging from the through groove 204.

[0048] The through groove 204 of the fixed base 2 not only provides a precise guide channel for the vertical sliding of the movable frame 6, ensuring that the movable frame 6 moves stably along the preset trajectory, but the cooperation between the limiting groove 203 and the limiting block 601 further prevents the movable frame 6 from slipping out due to excessive sliding through mechanical limiting. At the same time, the tight fit between the inner wall of the through groove 204 and the vertical part of the movable frame 6 restricts the lateral swaying of the movable frame 6 in the sliding and fixed states. When the movable frame 6 drives the fixed plate 7 to insert into the fixing hole 4 of the guide rail 3, the fixed plate 7 and the guide rail 3, while preventing the movable frame 6 from shaking out of the through groove 204, can also provide direct support force from the guide rail 3 to the fixed base 2 and the entire isolator, significantly improving the overall structural stability of the isolator after installation and avoiding positional displacement caused by external vibration or collision.

[0049] As is well known, although the shapes of signal isolators vary, the common dimensions of most signal isolators are: width (thickness) × height × depth = W13 × H102 × D115 (mm) and width (thickness) × height × depth = W22.5 × H100 × D115 (mm). In this case, the installer can cross the outer casing 1 with their thumb and index finger and / or middle finger and then pinch the sides of the movable frame 6 to push and pull the movable frame 6.

[0050] Even if the signal isolator is relatively large in size, such as W122×H18×D96 or W95×H23×D120 (mm), it can be easily operated by pushing and pulling the moving frame 6 from both sides simultaneously with two hands. This makes operation relatively simple, requiring minimal effort to quickly push the moving frame 6 to move the fixing plate 7 to the fixing hole 4 in the middle of the guide rail 3, thus achieving rapid fixation of the signal isolator to the guide rail 3. Furthermore, when the signal isolator needs to be moved back on the guide rail 3, the fixing plate 7 can be easily removed from the fixing hole 4. The operation is simple, time-saving, labor-saving, and provides good fixation.

[0051] In this embodiment, when it is not necessary to use the fixing plate 7 to enter the fixing hole 4, the fixing plate 7 is stored in the bottom groove 5, which will not affect the installation of the entire isolator with the guide rail 3, nor will it affect the movement of the isolator to the appropriate position on the guide rail 3.

[0052] It should be noted that the size and shape of the fixing plate 7 can be determined according to the size and shape of the fixing hole 4 to achieve a suitable fit. Since the fixing plate 7 is moved into the fixing hole 4 by operating the moving frame 6, the isolator and the guide rail 3 are relatively fixed, making operation convenient even in confined spaces. This is especially suitable for situations where the distance between the isolator and the guide rail 3 is small and they are relatively close together. It also avoids the disadvantages of using external bolts, such as the need for additional drilling and the inconvenience of operation in confined spaces. This facilitates the installation and disassembly of the signal isolator.

[0053] The isolator and guide rail 3 are mounted via a retaining plate 13 in the bottom groove 5 of the fixing base 2. A threaded rod 10 is rotatably connected in the bottom groove 5. The threaded rod 10 has symmetrical reverse threads on both sides, and retaining plates 13 are respectively installed on the threads on both sides (e.g., ...). Figure 3 The threaded rod 10 extends to the outside of the fixed base 2 at both ends, and the ends are fixedly connected to the knobs 9 with anti-slip texture. When the knobs 9 are turned, the threaded rod 10 rotates synchronously. Under the action of reverse thread transmission, the two clamping plates 13 on both sides move synchronously in opposite directions in the horizontal direction, realizing the clamping or loosening adjustment of both sides of the guide rail 3, thereby adapting to guide rails 3 of different width specifications and improving the universality of the installation of the signal isolator.

[0054] A guide rod 14 is also fixedly connected within the bottom groove 5. The guide rod 14 is horizontally arranged along the length of the threaded rod 10 and passes through a pre-set guide hole above the clamping plate 13, slidingly engaging with the guide hole. When the clamping plate 13 moves under the drive of the threaded rod 10, the guide rod 14 rigidly constrains the movement trajectory of the clamping plate 13, preventing the clamping plate 13 from shifting or shaking. A smooth part 12 is provided in the middle of the threaded rod 10, and symmetrical annular limiting rings 11 are fixedly sleeved on both sides of the smooth part 12. The outer diameter of the limiting rings 11 is larger than the diameter of the guide hole of the clamping plate 13, which can prevent the clamping plate 13 from moving excessively and ensure that it always moves within the effective threaded section of the threaded rod 10.

[0055] As is well known, due to variations in the external dimensions of signal isolators, the dimensions of the equipped guide rails 3 may also differ. For non-standard sized guide rails 3, the spacing between the two clamping plates 13 is adjusted by adjusting the structure. This embodiment is particularly suitable for guide rails 3 of the same thickness but different heights.

[0056] It should be noted that when the fixed plate 7 is not moved into the fixed hole 4, the threaded rod 10 passes above the horizontal section q of the "U"-shaped movable frame 6 (e.g., Figure 4 As shown), the horizontal segment q approaches but does not contact the threaded rod 10. This ensures that neither the moving frame 6 (moving up and down) nor the threaded rod 10 (rotating) will interfere with each other or affect their respective operation.

[0057] It should be noted that knob 9 can be operated by hand, making it convenient to use and suitable for operation in confined spaces. For example... Figure 2 As shown, the knob 9 has a pre-reserved rotation groove, which can be operated with tools. The rotation groove can be a straight groove, a cross-shaped groove, or a plum blossom groove, depending on the actual situation.

[0058] In this embodiment, if the signal isolator does not require the use of the guide rail 3 under certain special circumstances, it can be fixed to the mounting surface, distribution box or wall by using its mounting ears 8.

[0059] like Figure 7 The fixed base 2 has hinged seats 803 fixedly connected to both sides. Mounting ears 8 are hinged within the hinged seats 803. The mounting ears 8 can rotate around the hinged seats 803 to adjust their angle. Mounting holes 802 are provided on the mounting ears 802 to facilitate fixing the isolator to a cabinet or other auxiliary carrier using screws. The mounting ears 8 adopt a double-leg structure, with a second clearance groove 801 formed between the two legs. By unfolding the mounting ears 8 and then using screws through the mounting holes 802, the entire isolator can be fixed and locked to the mounting surface, distribution box, or wall of the required installation area.

[0060] It should be noted that when mounting ear 8 is not needed, it is folded up. Figure 1 The state shown is as follows. When needed, by turning the top of the mounting ear 8, the mounting ear 8 rotates on the hinge seat 803 via its two legs, thus unfolding. The second clearance groove 801 facilitates the folding of the mounting ear 8 close to the side of the fixing seat 2 without being affected by the knob 9. A gasket is provided between the hinge seat 803 and the hinge points of the two legs, providing a certain amount of friction to maintain the folded state of the mounting ear 8 and prevent it from easily unfolding. Alternatively, permanent magnets m can be installed on the inner side of the mounting ear 8 and on the fixing seat, attracting each other and keeping the mounting ear 8 folded when not in use.

[0061] In this embodiment, the outer casing 1 is assembled by tightening bolts. The outer casing 1 has a heat dissipation slot c, an input / output interface b, and a power indicator light a, etc. The schematic diagram of the isolator is shown below. Figure 8 As shown, this signal isolator uses an MCU as its core control unit and has complete input, output, and indication function modules. On the input side, it can receive 0-20mA or 4-20mA analog current signals, which are converted from analog to digital by a 24-bit AD measurement chip and transmitted to the MCU via a UART interface. Simultaneously, the DC power input is processed by an isolated and regulated power supply to power the entire system. On the output side, the PWM signal generated by the MCU is first optocoupled for enhanced anti-interference and safety, and then combined with a high-precision reference power supply to output a 0-20mA or 4-20mA analog current signal via a DA converter. In addition, it is equipped with a current pulse indicator and a working indicator, used to indicate the current pulse status and system operating status, respectively.

[0062] In this embodiment, the isolator with power distribution is an industrial device that combines signal isolation processing and power supply to field transmitters. Power distribution refers to the process of safely and stably delivering power from the power source to the electrical equipment (load) through a specific circuit or device. It can provide isolated DC power to field transmitters while simultaneously detecting 4-20mA current signals from the transmitters. After isolation and interference suppression, it outputs DC current or voltage signals to the control system or other instruments, such as... Figures 8 to 10 As shown, the number of input / output interfaces can be designed according to actual needs, with models including 1 input and 1 output (with power supply); 1 input and 2 outputs (with power supply); and 2 inputs and 2 outputs (with power supply).

[0063] These isolators are powered by an independent DC power supply, and the power supply, input, and output are isolated from each other, which can effectively avoid interference between different circuits.

[0064] In this implementation, the input voltage signal is detected and processed by a DC / DC driver for isolation and interference suppression before being output to the control system or other instruments as one or more DC voltage signals. This isolation distributor is powered by an independent DC power supply, ensuring isolation between the power supply, input, and output.

[0065] The parts of this utility model not described are existing technologies.

[0066] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An isolator with power distribution function, characterized in that, include: The fixed base (2) has a slot (201) on its top for mounting the isolator housing (1), and a bottom groove (5) on its bottom. Through grooves (204) are provided on both sides of the fixed base (2). The movable frame (6) is inserted into the through groove (204). The bottom of the movable frame (6) is fixedly connected to a fixing plate (7) with the same shape as the fixing hole (4) of the guide rail (3). The movable frame (6) is provided with an insertion hole (602) and an insertion plate (16) is provided in the insertion hole (602). The insert plate (16) has concave arc grooves (19) on both sides. An arc-shaped spring piece (18) is fixedly connected above the arc groove (19). The initial state of the arc-shaped spring piece (18) is that it protrudes outward and abuts against the inner wall of the insertion hole (602). When the insert plate (16) is pulled out of the insertion hole (602), the arc-shaped spring piece (18) shrinks and deforms into the arc groove (19) under the squeezing action of the inner wall of the insertion hole (602). The threaded rod (10) is rotatably connected in the bottom groove (5) of the fixed seat (2). The threaded rod (10) has symmetrical threads on both sides, and two symmetrical adjustable clamps (13) are threaded on the threads on both sides respectively.

2. The isolator with power distribution function according to claim 1, characterized in that: The movable frame (6) slides in the through groove (204), driving the fixed plate (7) to move vertically and extend into the fixed hole (4) of the guide rail (3) to fix the fixed seat (2). A row of comb plates (15) is fixedly connected to the bottom of the through groove (204). By pulling the insert plate (16), the insert plate (16) is engaged with the comb plate (15), so that the movable frame (6) and the fixed seat (2) are relatively fixed.

3. An isolator with power distribution function according to claim 2, characterized in that: The rear end of the insert plate (16) is fixedly connected to a handle (17). The front end shape of the insert plate (16) matches the tooth groove shape of the comb plate (15). The front end can be embedded in the tooth groove of the comb plate (15) to achieve stable positioning. Anti-detachment blocks (20) are also fixedly connected to both sides of the front end of the insert plate (16).

4. An isolator with power distribution function according to claim 1, characterized in that: The through groove (204) runs through the inner walls of both sides of the fixed base (2) from top to bottom, forming a channel for the movable frame (6) to slide up and down. The comb plate (15) is fixedly connected to the bottom inner wall of the through groove (204) along the length direction of the through groove (204), and its tooth groove faces the insertion hole (602) of the movable frame (6). The through groove (204) has a first clearance groove (202) at the position directly above the comb plate (15).

5. An isolator with power distribution function according to claim 4, characterized in that: Limiting grooves (203) are provided on both sides of the top of the through groove (204). A limiting block (601) is fixedly connected to the top of the movable frame (6). The shape of the limiting block (601) is adapted to the shape of the limiting groove (203). When the movable frame (6) slides to the bottom, the limiting block (601) abuts against the inner wall of the end of the limiting groove (203) to form a limit.

6. An isolator with power distribution function according to claim 1, characterized in that: The two sides of the threaded rod (10) extend to the outside of the two sides of the fixed seat (2). The two ends of the threaded rod (10) are fixedly connected to the knobs (9). When the knobs (9) are rotated, the threaded rod (10) rotates synchronously. The two sides of the threaded rod (10) are provided with symmetrical reverse threads. The clamps (13) installed on the threads on both sides move synchronously in opposite directions under the action of thread transmission.

7. An isolator with power distribution function according to claim 1, characterized in that: A guide rod (14) is fixedly connected between the bottom grooves (5), and the guide rod (14) passes horizontally through the pre-set guide hole above the card plate (13). When the card plate (13) moves horizontally under the drive of the threaded rod (10), the guide rod (14) guides the movement trajectory of the card plate (13).

8. An isolator with power distribution function according to claim 1, characterized in that: The middle part of the threaded rod (10) is a smooth part (12), and symmetrical annular limiting rings (11) are fixedly sleeved on both sides of the smooth part (12).

9. An isolator with power distribution function as described in claim 1, characterized in that: The fixed base (2) is fixedly connected to the two sides of the hinge base (803), and the hinge base (803) is hinged to the mounting ear (8), and the mounting ear (8) is provided with mounting hole (802).

10. An isolator with power distribution function according to claim 9, characterized in that: The mounting ear (8) has two legs and a second clearance groove (801) between the two legs.

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