Substation high-voltage cabinet with intelligent line concentration and rapid plugging function

Abstract

The invention discloses a transformer station high-voltage cabinet with intelligent line concentration and rapid plugging and unplugging functions, and the cabinet body is internally provided with a line concentration mechanism capable of adjusting the installation angle of a cable, and the two ends of the line concentration mechanism are detachably connected through two connecting frames. The two connecting frames are detachably connected to the two sides of a height adjusting mechanism capable of adjusting the height of a cable respectively, and the height adjusting mechanism is fixedly installed in the cabinet body. According to the invention, through the arrangement of the line concentration assembly, the problems that cables of an existing high-voltage cabinet are easy to intertwine and a certain line cannot be rapidly maintained are solved, accurate clamping and neat arrangement of the cables are realized, and when a single cable fails, the cables can be independently maintained only by screwing out a corresponding fastener without overall disassembly, so that normal operation of other lines is guaranteed; through arrangement of the rotating assembly, the problems that a traditional cable installation angle is fixed and cannot be flexibly adjusted are solved, the purpose that the motor drives the gear set to drive the cable concentration assembly to adjust the cable angle is achieved, and abrasion caused by forced bending of the cable is avoided.

Description

Technical Field

[0001] This invention relates to a high-voltage switchgear, specifically a substation high-voltage switchgear with intelligent hub and quick plug-in / plug-out functions. Background Technology

[0002] In substation power systems, high-voltage switchgear plays a crucial role in power transmission, distribution, and equipment control. It integrates a large number of power supply cables and signal cables, and the rationality of cable management directly affects the operational stability and maintenance efficiency of the high-voltage switchgear.

[0003] Existing traditional substation high-voltage cabinets have many shortcomings in practical applications. These shortcomings are mainly reflected in the fact that the cables inside the cabinet are mostly fixed by bundling or simple slots, lacking a dedicated and orderly structure. This makes it difficult to find the target cable during later maintenance due to the cables being tangled and intertwined. Moreover, the existing cable installation mechanisms are mostly integrated fixed structures. In scenarios that require emergency disassembly and reassembly, such as equipment operation and maintenance or fault repair, it is impossible to quickly remove and reset a single faulty cable. The entire installation structure must be disassembled first, which prolongs the power outage maintenance time and further affects the reliability of substation power supply. Summary of the Invention

[0004] The purpose of this invention is to provide a substation high-voltage switchgear with intelligent hub and quick plug-in / plug-out functions to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A substation high-voltage switchgear with intelligent cable management and quick-plug functionality includes a cabinet. Inside the cabinet is a cable management mechanism with adjustable cable installation angles. The two ends of the cable management mechanism are detachably connected via two connecting brackets. The two connecting brackets are detachably connected to both sides of a height adjustment mechanism that adjusts the cable height. The height adjustment mechanism is fixedly installed inside the cabinet. The cable management mechanism includes a cable management assembly, mounting components at both ends of the cable management assembly, and a rotating component connected to the cable management assembly within the mounting components.

[0006] As a further aspect of the present invention: the cable assembly includes a fixed clamping plate, a connecting plate, a movable clamping plate, and fasteners. The fixed clamping plate is fixedly connected to the connecting plate by bolts. Multiple first grooves are equidistantly provided on the top surface of the fixed clamping plate along its length direction. Multiple sliding grooves for mounting the movable clamping plates are equidistantly provided on the inner side of the connecting plate along its length direction. Multiple movable clamping plates are arranged opposite to multiple first grooves, and the thickness of the movable clamping plates is less than the thickness of the sliding grooves. Third mounting holes are equidistantly provided on the connecting plate along its length direction. The fasteners abut against the opposite movable clamping plates through the third mounting holes.

[0007] As a further aspect of the present invention: the first groove is a semi-circular groove that penetrates the front and rear side walls of the fixed clamping plate. The fixed clamping plate is provided with a first mounting hole for connecting with the connecting plate. The connecting plate opposite to the first mounting hole is provided with a second mounting hole. The bolts fix the connecting plate to the fixed clamping plate through the first mounting hole and the second mounting hole. The movable clamping plate is provided with a second groove that matches the first groove on the side opposite to the first groove.

[0008] As a further aspect of the present invention: guide blocks are provided on both sides of the slide groove, and guide grooves are provided on both sides of the movable clamping plate opposite to the guide blocks, with the guide blocks and guide grooves slidably connected.

[0009] As a further embodiment of the present invention: the mounting assembly is used to mount the hub mechanism on the connecting brackets on both sides. The mounting assembly includes a mounting box, a spring, a movable plate and a pin. The mounting box has a mounting groove. The bottom of the mounting groove is fixedly connected to the spring. The top of the spring is fixedly connected to the movable plate. The movable plate is slidably connected to the mounting groove. The top of the movable plate is fixedly connected to the pin. The top of the pin passes through the insertion hole on the top surface of the mounting box and is slidably connected to the insertion hole.

[0010] As a further embodiment of the present invention: the connecting frame is a C-shaped structure, and multiple positioning holes are provided on its top surface along its length direction, and the pin can be inserted into the positioning holes to achieve positioning.

[0011] As a further embodiment of the present invention: the rotating assembly is disposed in the mounting box. The rotating assembly includes a rotating shaft, a first gear, a second gear and a motor. One end of the rotating shaft is fixedly connected to the end of the fixing clamp in the hub assembly, and the other end is rotatably connected to the side wall of the mounting box through a bearing. The end of the shaft is fixedly connected to the first gear. One side of the first gear is meshed with the second gear. The second gear is fixedly connected to the output end of the motor. The motor is fixedly connected in the mounting box.

[0012] As a further embodiment of the present invention: the height adjustment mechanism includes uprights set at the four corners of the cabinet, movable sleeves fitted on the uprights, and locking components. Two connecting frames are respectively set on the left and right sides of the cabinet, and the end of each connecting frame is detachably connected to the corresponding upright through a movable sleeve.

[0013] As a further embodiment of the present invention: the locking component is disposed on the bottom surface of the connecting frame. The locking component includes a mounting plate, a third gear, a connecting rod, a turntable, toothed plates, and a plug-in rod. The mounting plate has a U-shaped structure. The tops of the two side plates of the mounting plate are fixedly connected to the bottom surface of the connecting frame. The third gear is rotatably connected to the bottom surface of the connecting frame through the connecting rod. The other end of the connecting rod passes through the mounting plate and is fixedly connected to the turntable. Two toothed plates are meshed on both sides of the third gear. The other ends of the two toothed plates are fixedly connected to the plug-in rod. Multiple positioning blocks are equidistantly arranged on the side wall of the column relative to the connecting frame. The other end of the plug-in rod can be inserted between two positioning blocks.

[0014] As a further embodiment of the present invention: guide strips are provided on both sides of the plug rod, the guide strips are fixedly connected to the mounting plate along the moving direction of the plug rod, and the plug rod is slidably connected to the guide strips.

[0015] Compared with the prior art, the beneficial effects of the present invention are: A substation high-voltage switchgear with intelligent cable management and quick plug-in / plug-out functions solves the problems of easy cable tangling, difficult maintenance, and inability to quickly repair a specific line in existing high-voltage switchgear by setting up a cable management component. It achieves precise clamping and neat arrangement of cables in the first and second cable slots. In the event of a single cable failure, only the corresponding fastener needs to be unscrewed for individual repair without the need for overall disassembly, ensuring the normal operation of other lines. By using a rotating component, the problem of fixed cable installation angle and inflexible adjustment in traditional cables is solved. The cable angle can be adjusted by using a motor-driven gear set to drive the cable hub assembly, thus avoiding wear caused by forced bending of the cable. By informing the adjustment mechanism, the problem of traditional installation mechanisms being unable to flexibly adjust cable height and having poor adaptability is solved. It enables free adjustment and precise locking of cable installation height, adapting to the layout adjustment of equipment in the high-voltage cabinet and the need for new cables, thereby improving the overall adaptability of the structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a substation high-voltage switchgear with intelligent hub and quick-plug functionality.

[0017] Figure 2 This is a schematic diagram of the hub mechanism in a substation high-voltage cabinet with intelligent hub and quick plug-in function.

[0018] Figure 3 This is an enlarged view of point A in a substation high-voltage switchgear with intelligent hub and quick-plug function.

[0019] Figure 4 This is a diagram showing the internal structure of an installation box in a substation high-voltage cabinet with intelligent hub and quick-plug functionality.

[0020] Figure 5 This is a schematic diagram of the locking component in a substation high-voltage switchgear with intelligent hub and quick plug-in function.

[0021] Figure 6 This is a cross-sectional view of a locking component in a substation high-voltage switchgear with intelligent hub and quick-plug function.

[0022] In the diagram: Cabinet 1, Cable Management Mechanism 2, Fixed Clamping Plate 21, First Cable Groove 211, First Mounting Hole 212, Connecting Plate 22, Second Mounting Hole 221, Slide Groove 222, Third Mounting Hole 223, Guide Block 224, Movable Clamping Plate 23, Second Cable Groove 231, Guide Groove 232, Fastener 24, Mounting Box 25, Mounting Groove 251, Spring 26, Moving Plate 27, Pin 28, Rotating Shaft 29, First Gear 210, Second Gear 220, Motor 230, Connecting Frame 3, Positioning Hole 31, Height Adjustment Mechanism 4, Column 41, Positioning Block 411, Moving Sleeve 42, Mounting Plate 43, Third Gear 44, Connecting Rod 45, Turntable 46, Tooth Plate 47, Connecting Rod 48, Guide Strip 49. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1 In this embodiment of the invention, a substation high voltage cabinet with intelligent cable management and quick plug-in / plug-out function includes a cabinet body 1. The cabinet body 1 is provided with a cable management mechanism 2 that can adjust the cable installation angle. The two ends of the cable management mechanism 2 are detachably connected by two connecting brackets 3. The two connecting brackets 3 are detachably connected to both sides of a height adjustment mechanism 4 that can adjust the cable height. The height adjustment mechanism 4 is fixedly installed in the cabinet body 1.

[0025] like Figures 2-4 As shown, the hub mechanism 2 includes a hub assembly, mounting components disposed at both ends of the hub assembly, and a rotating component disposed within the mounting component and connected to the hub assembly.

[0026] The cable assembly includes a fixed clamp 21, a connecting plate 22, a movable clamp 23, and fasteners 24. The top surface of the fixed clamp 21 has multiple first cable grooves 211 evenly spaced along its length. Each first cable groove 211 is a semi-circular groove penetrating the front and rear sidewalls of the fixed clamp 21. The fixed clamp 21 has first mounting holes 212 for connecting to the connecting plate 22. The connecting plate 22, opposite to the first mounting holes 212, has second mounting holes 221. Bolts are used to fix the connecting plate 22 to the fixed clamp 21 through the first mounting holes 212 and the second mounting holes 221. The inner side of the connecting plate 22 has multiple sliding grooves 222 evenly spaced along its length for mounting the movable clamps 23. The multiple movable clamps 23 connect to the multiple first cable grooves 24. The grooves 211 are arranged opposite each other, and the thickness of the movable clamping plate 23 is less than the thickness of the sliding groove 222, so that the movable clamping plate 23 can move within the sliding groove 222. A second groove 231 matching the first groove 211 is opened on the side of the movable clamping plate 23 opposite to the first groove 211. A third mounting hole 223 is equidistantly opened on the connecting plate 22 along the length direction. The fasteners 24 respectively abut against the opposite movable clamping plates 23 through the third mounting holes 223. In this invention, the fasteners 24 are bolts. The bolts abut against the opposite movable clamping plates 23 through the third mounting holes 223, thereby fixing the movable clamping plate 23 in a suitable position to clamp the cable located between the first groove 211 and the second groove 231.

[0027] Guide blocks 224 are provided on both sides of the slide 222, and guide grooves 232 are provided on both sides of the movable clamping plate 23 opposite to the guide blocks 224. The guide blocks 224 and the guide grooves 232 are slidably connected. Through the setting of the guide blocks 224 and the guide grooves 232, the movable clamping plate 23 can be quickly positioned and installed. At the same time, the movable clamping plate 23 can move more stably in the slide 222, reducing unnecessary friction and avoiding shaking or displacement.

[0028] During operation, the movable clamp 23 is first installed inside the connecting plate 22, and the cable is placed into the corresponding first cable tray 211 and second cable tray 231. The connecting plate 22 is then connected to the fixed clamp 21 with bolts. After that, multiple fasteners 24 are used to push the corresponding movable clamp 23 towards the fixed clamp 21, clamping and fixing the cable between the movable clamp 23 and the fixed clamp 21, thus achieving neat arrangement and fixation of the cable. If a fault occurs in a certain line during later use, the corresponding fastener 24 can be unscrewed to repair that line without disassembling the overall structure and without affecting the operation of other lines.

[0029] The mounting assembly is used to mount the hub mechanism 2 on the connecting brackets 3 on both sides. The mounting assembly includes a mounting box 25, a spring 26, a movable plate 27, and a pin 28. The mounting box 25 has a mounting groove 251. The bottom of the mounting groove 251 is fixedly connected to the spring 26. The top of the spring 26 is fixedly connected to the movable plate 27. The movable plate 27 is slidably connected to the mounting groove 251. The top of the movable plate 27 is fixedly connected to the pin 28. The top of the pin 28 passes through the insertion hole on the top surface of the mounting box 25 and is slidably connected to the insertion hole.

[0030] The connecting frame 3 has a C-shaped structure with multiple positioning holes 31 along its length on its top surface. During installation, the mounting components at both ends of the hub mechanism 2 are inserted into the connecting frames 3 on both sides. The elastic restoring force of the springs 26 within the mounting components pushes the connecting plate 27, causing the pins 28 to move upwards, automatically engaging the pins 28 into the corresponding positioning holes 31 on the connecting frame 3. In use, multiple hub mechanisms 2 can be installed as needed, and by engaging the pins 28 into different positioning holes 31 on the connecting frame 3, the hub mechanism 2 can be adjusted to different installation positions, making it more versatile.

[0031] The rotating assembly is housed within the mounting box 25. The rotating assembly includes a rotating shaft 29, a first gear 210, a second gear 220, and a motor 230. One end of the rotating shaft 29 is fixedly connected to the end of the fixing clamp 21 in the cable hub assembly, while the other end is rotatably connected to the side wall of the mounting box 25 via a bearing. The first gear 210 is fixedly connected to the other end of the shaft, and a second gear 220 is meshed with one side of the first gear 210. The second gear 220 is fixedly connected to the output end of the motor 230, which is fixedly connected within the mounting box 25. During operation, by simultaneously activating both motors 230, the motors 230 drive the second gear 220 to rotate, which in turn drives the first gear 210 to rotate. The first gear 210 then drives the rotating shaft 29 to rotate, thereby rotating the cable hub assembly and adjusting the cable installation angle.

[0032] like Figure 1 , Figure 5 and Figure 6 As shown, the height adjustment mechanism 4 includes uprights 41 located at the four corners of the cabinet 1, movable sleeves 42 fitted on the uprights 41, and locking components. Two connecting frames 3 are respectively located on the left and right sides of the cabinet 1, and the end of each connecting frame 3 is detachably connected to the corresponding upright 41 through a movable sleeve 42.

[0033] The locking assembly is located on the bottom surface of the connecting frame 3. The locking assembly includes a mounting plate 43, a third gear 44, a connecting rod 45, a turntable 46, toothed plates 47, and a connecting rod 48. The mounting plate 43 has a U-shaped structure, with the tops of its two side plates fixedly connected to the bottom surface of the connecting frame 3. The third gear 44 is rotatably connected to the bottom surface of the connecting frame 3 via the connecting rod 45. The other end of the connecting rod 45 passes through the mounting plate 43 and is fixedly connected to the turntable 46. Two toothed plates 47 are meshed on both sides of the third gear 44, and the other ends of the two toothed plates 47 are fixedly connected to the connecting rod 48. Multiple positioning blocks 411 are equidistantly arranged on the side wall of the column 41 relative to the connecting frame 3. The other end of the connecting rod 48 can be inserted between two positioning blocks 411 to lock the position adjustment.

[0034] Guide strips 49 are provided on both sides of the plug rod 48. The guide strips 49 are fixedly connected to the mounting plate 43 along the moving direction of the plug rod 48, and the plug rod 48 is slidably connected to the guide strips 49. During operation, according to the cable installation height requirements, the connecting frame 3 is pushed to drive the moving sleeves 42 at both ends to slide up and down along the uprights 41 at the four corners of the cabinet 1 until the target height is reached; then the turntable 46 of the locking component is rotated, which drives the third gear 44 to rotate through the connecting rod 45. The third gear 44 meshes and drives the toothed plates 47 on both sides to move in the opposite direction, driving the plug rod 48 to slide along the guide strips 49 on the inner side of the mounting plate 43, and finally inserting it between the two positioning blocks 411 on the side wall of the upright 41, completing the height locking of the connecting frame 3 and fixing the cable installation height.

[0035] The working principle of this invention is as follows: First, the hub mechanism 2 is pre-assembled. The guide groove 232 of the movable clamping plate 23 is aligned with the guide block 224 on the side wall of the slide groove 222 of the connecting plate 22, and then slid into the slide groove 222. Bolts are then passed through the first mounting hole 212 and the second mounting hole 221 to fix the connecting plate 22 and the fixed clamping plate 21, completing the pre-installation. Next, according to the number of hub mechanisms 2 required by the high-voltage cabinet, the pre-positioned hub mechanisms 2 are installed on the connecting frames 3 on both sides. The elastic restoring force of the spring 26 in the installation assembly drives the pin 28 to engage with the corresponding positioning hole 31, achieving rapid positioning and installation of the hub mechanism 2 and the connecting frame 3. Then, the connecting frame 3 is connected to the movable sleeve 42 with bolts, and then fixed to the designated position using the locking component of the height adjustment mechanism 4. When securing the cable, place the cable to be organized into the first groove 211 of the fixing plate 21, tighten the fastener 24 in the third mounting hole 223, and push the movable clamp 23 towards the fixing plate 21 until the cable is stably clamped between the first groove 211 and the second groove 231, thus completing the cable organization and fixing. If it is necessary to adjust the cable installation angle, start the two motors 230 in the mounting box 25 of the cable gathering mechanism 2. The output end of the motor 230 drives the second gear 220 to rotate, and the second gear 220 meshes with and drives the first gear 210 to rotate, which in turn drives the rotating shaft 29 connected to the end of the fixing plate 21 to rotate, and finally drives the cable gathering assembly to rotate synchronously until the cable angle is adjusted to the target state, then turn off the motor 230.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A substation high-voltage switchgear with intelligent hub and quick-plug function, characterized in that, The system includes a cabinet (1), which contains a cable management mechanism (2) with an adjustable cable installation angle. The two ends of the cable management mechanism (2) are detachably connected by two connecting brackets (3). The two connecting brackets (3) are detachably connected to both sides of a height adjustment mechanism (4) that can adjust the cable height. The height adjustment mechanism (4) is fixedly installed inside the cabinet (1). The cable management mechanism (2) includes a cable management component, mounting components at both ends of the cable management component, and a rotating component connected to the cable management component and installed inside the mounting component.

2. A substation high-voltage switchgear with intelligent hub and quick-plug function according to claim 1, characterized in that, The cable assembly includes a fixed clamp (21), a connecting plate (22), a movable clamp (23), and fasteners (24). The fixed clamp (21) is fixedly connected to the connecting plate (22) by bolts. Multiple first grooves (211) are equidistantly provided on the top surface of the fixed clamp (21) along its length direction. Multiple sliding grooves (222) for the movable clamp (23) to be installed are equidistantly provided on the inner side of the connecting plate (22) along its length direction. Multiple movable clamps (23) are arranged opposite to multiple first grooves (211), and the thickness of the movable clamp (23) is less than the thickness of the sliding groove (222). Third mounting holes (223) are equidistantly provided on the connecting plate (22) along its length direction. The fasteners (24) abut against the opposite movable clamps (23) through the third mounting holes (223).

3. A substation high-voltage switchgear with intelligent hub and quick-plug function according to claim 2, characterized in that, The first groove (211) is a semi-circular groove that penetrates the front and rear side walls of the fixed clamping plate (21). The fixed clamping plate (21) has a first mounting hole (212) for connecting with the connecting plate (22). The connecting plate (22) opposite to the first mounting hole (212) has a second mounting hole (221). The bolts fix the connecting plate (22) to the fixed clamping plate (21) through the first mounting hole (212) and the second mounting hole (221). The movable clamping plate (23) has a second groove (231) that matches the first groove (211) on the side opposite to the first groove (211).

4. A substation high-voltage switchgear with intelligent hub and quick-plug function according to claim 2, characterized in that, Guide blocks (224) are provided on both sides of the slide (222), and guide grooves (232) are provided on both sides of the movable clamp (23) opposite to the guide blocks (224). The guide blocks (224) and guide grooves (232) are slidably connected.

5. A substation high-voltage switchgear with intelligent hub and quick-plug function according to claim 1, characterized in that, The mounting assembly is used to mount the hub mechanism (2) on the connecting brackets (3) on both sides. The mounting assembly includes a mounting box (25), a spring (26), a movable plate (27), and a pin (28). The mounting box (25) has a mounting groove (251) inside. The bottom of the mounting groove (251) is fixedly connected to the spring (26). The top of the spring (26) is fixedly connected to the movable plate (27). The movable plate (27) is slidably connected to the mounting groove (251). The top surface of the movable plate (27) is fixedly connected to the pin (28). The top of the pin (28) passes through the insertion hole on the top surface of the mounting box (25) and is slidably connected to the insertion hole.

6. A substation high-voltage switchgear with intelligent hub and quick-plug function according to claim 5, characterized in that, The connecting frame (3) has a C-shaped structure, and multiple positioning holes (31) are provided on its top surface along its length. The pin (28) can be inserted into the positioning holes (31) to achieve positioning.

7. A substation high-voltage switchgear with intelligent hub and quick-plug function according to claim 5, characterized in that, The rotating assembly is set inside the mounting box (25). The rotating assembly includes a rotating shaft (29), a first gear (210), a second gear (220), and a motor (230). One end of the rotating shaft (29) is fixedly connected to the end of the fixing clamp (21) in the hub assembly, and the other side is rotatably connected to the side wall of the mounting box (25) through a bearing. The end of the shaft (29) is fixedly connected to the first gear (210). The first gear (210) is meshed with the second gear (220) on one side. The second gear (220) is fixedly connected to the output end of the motor (230). The motor (230) is fixedly connected inside the mounting box (25).

8. A substation high-voltage switchgear with intelligent hub and quick-plug function according to claim 1, characterized in that, The height adjustment mechanism (4) includes uprights (41) set at the four corners inside the cabinet (1), movable sleeves (42) fitted on the uprights (41), and locking components. Two connecting frames (3) are respectively set on the left and right sides of the cabinet (1), and the end of each connecting frame (3) is detachably connected to the corresponding upright (41) through a movable sleeve (42).

9. A substation high-voltage switchgear with intelligent hub and quick-plug function according to claim 8, characterized in that, The locking assembly is set on the bottom surface of the connecting frame (3). The locking assembly includes a mounting plate (43), a third gear (44), a connecting rod (45), a turntable (46), a toothed plate (47), and a plug-in rod (48). The mounting plate (43) has a U-shaped structure. The top of the two side plates of the mounting plate (43) are fixedly connected to the bottom surface of the connecting frame (3). The third gear (44) is rotatably connected to the bottom surface of the connecting frame (3) through the connecting rod (45). The other end of the connecting rod (45) passes through the mounting plate (43) and is fixedly connected to the turntable (46). The two sides of the third gear (44) are respectively meshed with two toothed plates (47). The other ends of the two toothed plates (47) are fixedly connected to the plug-in rod (48). The column (41) is provided with multiple positioning blocks (411) at equal intervals on the side wall of the connecting frame (3). The other end of the plug-in rod (48) can be inserted between two positioning blocks (411).

10. A substation high-voltage switchgear with intelligent hub and quick-plug function according to claim 9, characterized in that, Guide strips (49) are provided on both sides of the plug rod (48). The guide strips (49) are fixedly connected to the mounting plate (43) along the moving direction of the plug rod (48). The plug rod (48) and the guide strips (49) are slidably connected.

Images