Guide rail interlock with self-lubricating structure

Abstract

The utility model discloses a guide rail interlock with a self-lubricating structure, which relates to the field of switch cabinets and comprises a fixing frame fixedly connected with the right side surface of a circuit breaker handcart, a linkage shaft is mounted on two sides of the fixing frame in a penetrating manner, the front end of the linkage shaft is fixedly connected with a linkage piece, and the rear end of the linkage shaft is connected with a fixing box in a penetrating manner. A rapid interlocking mechanism is arranged in the fixed box, and rapid interlocking reaction is performed on the circuit breaker handcart through the rapid interlocking mechanism. The guide rail with the self-lubricating structure is interlocked; when the grounding switch acts, the grounding switch drives the linkage piece and drives the linkage shaft to rotate anticlockwise, then the lower end of the push plate pushes the stop lever, the trigger spring pops up the stop lever, interlocking reaction can be achieved, and the safety and stability of equipment are greatly improved. Quick response can be realized at a critical moment, various safety accidents possibly caused by slow interlocking are avoided, and reliable guarantee is provided for life safety of operators and normal operation of equipment.

Description

Technical Field

[0001] The utility model relates to the field of switch cabinets, in particular to a guide rail interlock with a self-lubricating structure. Background Art

[0002] Guide rail interlocks play a crucial role in various equipment. Switchgear requires "five-protection" features to prevent operator misoperation. This "five-protection" interlock between the grounding switch and the mobile trolley is particularly crucial. However, existing guide rail interlocks have many significant issues.

[0003] Existing interlocking designs are clearly irrational in terms of interlocking speed. Due to structural limitations, interlocking responses are often very slow, failing to respond promptly to critical equipment needs. This slow response not only negatively impacts overall equipment performance, leading to unstable and unreliable operation, but can also pose serious safety risks in certain emergency situations, posing a significant threat to operators and equipment.

[0004] For example, a guide rail interlock with publication number CN205335727U has a technical solution that includes a linkage shaft linked to the grounding switch and a guide rail for the trolley to slide. A block is fixed on the linkage shaft, and a through groove for the block to pass through is provided on the side wall of the guide rail. The grounding switch drives the linkage shaft to rotate and drives the block to pass through the through groove and be located in the slide rail. The block will retract from the slide rail into the through groove under the action of the reset member a. At this time, the trolley can slide on the slide rail. The overall structure is simple, with few parts, and is easy to install and disassemble.

[0005] The aforementioned guide rail interlocking structure is not designed for rapid interlocking, and existing guide rail interlocking structures exhibit slow interlocking. However, other operational issues exist, such as lubrication. Traditional lubrication methods often suffer from serious drawbacks. They often fail to consistently and stably provide sufficient lubrication to the guide rails. This leads to severe wear of the guide rails over extended periods of operation due to lack of lubrication. This wear not only significantly reduces the operating accuracy of the equipment, affecting its normal operating performance, but also significantly shortens its service life. Utility Model Content

[0006] The purpose of the utility model is to provide a guide rail interlock with a self-lubricating structure to solve the problems of lubrication method and interlocking speed proposed in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: a guide rail interlock with a self-lubricating structure, comprising a fixed frame fixedly connected to the right side of a circuit breaker trolley, linkage shafts being installed through both sides of the fixed frame, the front end of the linkage shaft being fixedly connected to a linkage member, and the rear end of the linkage shaft being connected through a fixed box, a quick interlocking mechanism being provided inside the fixed box, and the quick interlocking mechanism providing a quick interlocking response to the circuit breaker trolley;

[0008] The fixed box is fixedly connected to the side of the fixed frame, and the upper end of the fixed box is provided with a self-lubricating mechanism, through which the parts inside the fixed box are lubricated.

[0009] Furthermore, the quick interlocking mechanism includes an eccentric wheel fixedly connected to the rear of the linkage shaft, and the eccentric wheel is installed inside the fixed box, and the upper end of the eccentric wheel is fixedly connected to the wave rod.

[0010] Furthermore, the left end of the middle baffle inside the fixed box is rotatably connected to the trigger plate, and the middle of the middle baffle inside the fixed box is rotatably connected to the fixed plate, the middle baffle inside the fixed box is fixedly connected to a return spring, and the return spring is at the lower left end of the fixed plate, and the right end of the middle baffle inside the fixed box is rotatably connected to the push plate, and the upper end of the push plate is at the lower right end of the fixed plate.

[0011] Furthermore, the lower end of the middle baffle plate inside the fixed box is fixedly connected to the spring positioning plate, and the spring positioning plate is sleeved on the surface of the baffle rod, and the left end of the baffle rod passes through the left end of the fixed box and the fixed frame, and the lower end of the push plate is nested with the baffle rod, and the left end of the baffle rod is fixedly connected to the spring stopper, and the left side of the spring positioning plate is fixedly connected to the trigger spring, and the left end of the trigger spring is fixedly connected to the spring stopper.

[0012] Furthermore, the middle of the linkage shaft is fixedly connected to a fixing pin, and the linkage shaft is nested with a torsion spring, and the torsion spring prevents the linkage shaft from having excessive torque, the back of the torsion spring is buckled on the front of the fixing box, and the front end of the torsion spring is buckled on the fixing plate on the fixing pin.

[0013] Furthermore, the self-lubricating mechanism includes a fixed box with a lubricating oil tank fixedly connected to the upper end, and an oil nozzle fixedly connected to the lower end of the lubricating oil tank, and four oil guide grooves are evenly distributed inside the oil nozzle, and the lower end of the oil nozzle is nested and installed in the upper end of the fixed box, and the bottom of the oil nozzle is facing this.

[0014] Furthermore, a thrust spring is fixedly installed inside the oil nozzle, and a ball is nested in the oil nozzle, and a fan-shaped wheel is fixedly connected to the back of the linkage shaft, an arc groove is opened at the upper end of the fan-shaped wheel, and the fan-shaped wheel (is an irregular fan-shaped, and arc angles are opened on both sides of the groove of the fan-shaped wheel), the fan-shaped wheel is installed inside the fixed box, and the upper end of the fan-shaped wheel contacts the ball, and the lower part of the oil nozzle is opposite to the groove on the fan-shaped wheel.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the guide rail interlock with the self-lubricating structure;

[0016] 1. When the ground switch is in operation, the ground switch drives the linkage and the linkage shaft to rotate counterclockwise. The linkage shaft also drives the eccentric wheel to rotate, and the fluctuation rod on the eccentric wheel also rotates with it. Then the fluctuation rod fluctuates, causing the trigger plate to rotate counterclockwise. The lower end of the trigger plate pushes the fixed plate upward to rotate clockwise. The right side of the fixed plate pushes the push plate downward to rotate clockwise. Then the lower end of the push plate pushes the blocking rod, causing the trigger spring to eject the blocking rod. The interlocking reaction greatly enhances the safety and stability of the equipment. It can respond quickly at critical moments, avoiding various safety accidents that may be caused by delayed interlocking, and providing reliable protection for the life safety of operators and the normal operation of equipment.

[0017] Furthermore, when the ground switch stops functioning, it drives the linkage and the linkage shaft clockwise. This in turn drives the eccentric, which in turn rotates the oscillating lever on the eccentric. The oscillating lever then oscillates beneath the push plate, pushing the stop lever and causing the trigger spring to retract. The fixed plate then disconnects the push plate, and the return spring beneath the fixed plate resets it, driving the trigger plate back into position. This interlocking response significantly enhances the safety and stability of the equipment. It enables rapid response at critical moments, avoiding potential safety incidents caused by delayed interlocking, and reliably safeguarding the operator's safety and the normal operation of the equipment.

[0018] 2. When the grounding switch is in operation or stopped, the grounding switch drives the linkage part and drives the linkage shaft to rotate, and the linkage shaft drives the sector wheel to rotate. The upper end of the sector wheel drives the ball upward and rolls, and the ball pushes the thrust spring upward. Then the lubricating oil passes through the four oil guide grooves inside the oil nozzle, and then the lubricating oil flows into the parts below that need lubrication, reducing the wear of the guide rail, which not only greatly extends the service life of the guide rail, but also enables the equipment to operate stably for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the guide rail interlocking of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the lubricating oil tank of the utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the oil nozzle of the utility model;

[0023] Figure 5 This is a schematic diagram of the semi-sectioned three-dimensional structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the barrier rod of the utility model;

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of the fixed box of the utility model.

[0026] In the figure: 1. Circuit breaker trolley; 2. Fixed frame; 3. Linkage shaft; 4. Linkage member; 5. Fixed box; 6. Lubricating oil tank; 7. Oil nozzle; 8. Thrust spring; 9. Ball bearing; 10. Sector wheel; 11. Eccentric wheel; 12. Wave lever; 13. Trigger plate; 14. Fixed plate; 15. Return spring; 16. Push plate; 17. Spring positioning plate; 18. Stop rod; 19. Spring stopper; 20. Trigger spring; 21. Fixing pin; 22. Torsion spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figure 1-7 Figure, the utility model provides the following technical solutions: a guide rail interlock with a self-lubricating structure, including a circuit breaker trolley 1, a fixed frame 2, a linkage shaft 3, a linkage member 4, a fixed box 5, a lubricating oil tank 6, an oil nozzle 7, a thrust spring 8, a ball 9, a sector wheel 10, an eccentric wheel 11, a wave rod 12, a trigger plate 13, a fixed plate 14, a return spring 15, a push plate 16, a spring positioning plate 17, a stop rod 18, a spring block 19, a trigger spring 20, a fixing pin 21 and a torsion spring 22.

[0029] It includes a fixing frame 2 fixedly connected to the right side of the circuit breaker trolley 1, with linkage shafts 3 installed on both sides of the fixing frame 2, the front end of the linkage shaft 3 fixedly connected to the linkage member 4, and the rear end of the linkage shaft 3 is connected to a fixing box 5, and a quick interlocking mechanism is provided inside the fixing box 5, which quickly interlocks the circuit breaker trolley 1 through the quick interlocking mechanism;

[0030] The fixing box 5 is fixedly connected to the side of the fixing frame 2. The upper end of the fixing box 5 is provided with a self-lubricating mechanism, and the parts inside the fixing box 5 are lubricated by the self-lubricating mechanism.

[0031] The quick interlocking mechanism includes an eccentric wheel 11 fixedly connected to the rear of the linkage shaft 3, and the eccentric wheel 11 is installed inside the fixed box 5. The upper end of the eccentric wheel 11 is fixedly connected to the wave lever 12. The left end of the middle baffle inside the fixed box 5 is rotatably connected to the trigger plate 13, and the middle of the middle baffle inside the fixed box 5 is rotatably connected to the fixed plate 14. The middle baffle inside the fixed box 5 is fixedly connected to the return spring 15, and the return spring 15 is at the lower left end of the fixed plate 14. The right end of the middle baffle inside the fixed box 5 is rotatably connected to the push plate 16, and the upper end of the push plate 16 is at the lower right end of the fixed plate 14. The lower end of the middle baffle inside the fixed box 5 is fixedly connected to the spring positioning plate 17, and the spring positioning plate 17 is sleeved on the surface of the baffle rod 18, and the left end of the baffle rod 18 passes through the left end of the fixed box 5 and the fixed frame 2. The baffle rod 18 is nested and installed at the lower end of the push plate 16, and the left end of the baffle rod 18 is fixedly connected to the spring stopper 19. The left side of the spring positioning plate 17 is fixedly connected to the trigger spring 20, and the left end of the trigger spring 20 is fixedly connected to the spring stopper 19. The middle of the linkage shaft 3 is fixedly connected to the fixing pin 21, and the linkage shaft 3 is nested with a torsion spring 22. The torsion spring 22 prevents the linkage shaft 3 from excessive torque. The back of the torsion spring 22 is buckled on the front of the fixed box 5, and the front end of the torsion spring 22 is buckled on the fixing pin 21 and the fixing plate 14.

[0032] When the grounding switch is activated, the grounding switch drives the linkage part 4 and drives the linkage shaft 3 to rotate counterclockwise, and the linkage shaft 3 drives the eccentric wheel 11 to rotate, and the wave rod 12 on the eccentric wheel 11 also rotates therewith, and then the wave rod 12 fluctuates to trigger the plate 13 to rotate counterclockwise, and the lower end of the trigger plate 13 pushes the fixed plate 14 upward to rotate clockwise, and the right side of the fixed plate 14 pushes the push plate 16 downward to rotate clockwise, and then the lower end of the push plate 16 pushes the blocking rod 18, so that the trigger spring 20 pops out the blocking rod 18. At this time, the trolley cannot slide on the slide rail due to the blocking effect of the blocking rod 18. When the grounding switch stops working, the grounding switch drives the linkage part 4 and drives the linkage shaft 3 to rotate clockwise, and then the linkage shaft 3 drives the eccentric wheel 11 to rotate, and the wave rod 12 on the eccentric wheel 11 also rotates with it, and then the wave rod 12 waves under the push plate 16 and pushes the blocking rod 18 to make the trigger spring 20 rebound, then the fixed plate 14 disconnects the push plate 16, and the reset spring 15 under the fixed plate 14 resets it and drives the trigger plate 13 to reset. At this time, the trolley can slide on the slide rail.

[0033] The self-lubricating mechanism includes a fixed box 5, the upper end of which is fixedly connected to a lubricating oil tank 6, and the lower end of the lubricating oil tank 6 is fixedly connected to an oil nozzle 7, and four oil guide grooves are evenly distributed inside the oil nozzle 7, the lower end of the oil nozzle 7 is nested and installed on the upper end of the fixed box 5, and the lower end of the oil nozzle 7 is opposite to this. A thrust spring 8 is fixedly installed inside the oil nozzle 7, and a ball 9 is nested and installed on the oil nozzle 7, and a fan wheel 10 is fixedly connected to the back of the linkage shaft 3, the upper end of the fan wheel 10 has an arc groove, and the fan wheel 10 is irregularly fan-shaped, and arc angles are opened on both sides of the groove of the fan wheel 10, the fan wheel 10 is installed inside the fixed box 5, and the upper end of the fan wheel 10 is in contact with the ball 9, and the lower end of the oil nozzle 7 is opposite to the groove on the fan wheel 10.

[0034] When the grounding switch is in operation and inoperative, the grounding switch drives the linkage part 4 and drives the linkage shaft 3 to rotate, the linkage shaft 3 drives the sector wheel 10 to rotate, the upper end of the sector wheel 10 drives the ball 9 upward and rolls, the ball 9 pushes the thrust spring 8 upward, and then the lubricating oil passes through the four oil guide grooves inside the oil nozzle 7, and then the lubricating oil flows into the parts below that need to be lubricated.

[0035] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

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

Claims

1. A guide rail interlock with a self-lubricating structure, comprising a circuit breaker trolley (1) and a right side fixed connection bracket (2), characterized in that: Linkage shafts (3) are installed through both sides of the fixed frame (2); the front end of the linkage shaft (3) is fixedly connected to a linkage member (4); the rear end of the linkage shaft (3) is connected through a fixed box (5); a quick interlocking mechanism is provided inside the fixed box (5); and the circuit breaker trolley (1) is quickly interlocked by the quick interlocking mechanism; The fixed box (5) is fixedly connected to the side of the fixed frame (2), and a self-lubricating mechanism is provided at the upper end of the fixed box (5), and the parts inside the fixed box (5) are lubricated by the self-lubricating mechanism.

2. The guide rail interlock with a self-lubricating structure according to claim 1, characterized in that: The quick interlocking mechanism comprises an eccentric wheel (11) fixedly connected to the rear of the linkage shaft (3), and the eccentric wheel (11) is installed inside the fixed box (5), and the upper end of the eccentric wheel (11) is fixedly connected to the wave rod (12).

3. The guide rail interlock with a self-lubricating structure according to claim 2, characterized in that: The left end of the middle baffle inside the fixed box (5) is rotatably connected to a trigger plate (13), and the middle of the middle baffle inside the fixed box (5) is rotatably connected to a fixed plate (14). The middle baffle inside the fixed box (5) is fixedly connected to a return spring (15), and the return spring (15) is at the lower left end of the fixed plate (14). The right end of the middle baffle inside the fixed box (5) is rotatably connected to a push plate (16), and the upper end of the push plate (16) is at the lower right end of the fixed plate (14).

4. The guide rail interlock with a self-lubricating structure according to claim 3, characterized in that: The lower end of the middle baffle plate inside the fixed box (5) is fixedly connected to the spring positioning plate (17), and the spring positioning plate (17) is sleeved on the surface of the baffle rod (18), and the left end of the baffle rod (18) passes through the left end of the fixed box (5) and the fixed frame (2). The lower end of the push plate (16) is nested with the baffle rod (18), and the left end of the baffle rod (18) is fixedly connected to the spring stopper (19). The left side of the spring positioning plate (17) is fixedly connected to the trigger spring (20), and the left end of the trigger spring (20) is fixedly connected to the spring stopper (19).

5. The guide rail interlock with a self-lubricating structure according to claim 1, characterized in that: The middle of the linkage shaft (3) is fixedly connected to a fixing pin (21), and a torsion spring (22) is nested and installed on the linkage shaft (3), and the torsion spring (22) prevents the linkage shaft (3) from having excessive torque. The rear end of the torsion spring (22) is buckled on the front end of the fixing box (5), and the front end of the torsion spring (22) is buckled on the fixing plate (14) on the fixing pin (21).

6. The guide rail interlock with a self-lubricating structure according to claim 1, characterized in that: The self-lubricating mechanism comprises a fixed box (5) having an upper end fixedly connected to a lubricating oil tank (6), and a fixed oil nozzle (7) having a lower end fixedly connected to the lubricating oil tank (6), and four oil guide grooves evenly distributed inside the oil nozzle (7), and the lower end of the oil nozzle (7) is nested and installed in the upper end of the fixed box (5), and the lower end of the oil nozzle (7) faces this.

7. The guide rail interlock with a self-lubricating structure according to claim 6, characterized in that: A thrust spring (8) is fixedly installed inside the oil nozzle (7), and a ball (9) is nested and installed in the oil nozzle (7). A fan wheel (10) is fixedly connected to the rear of the linkage shaft (3). An arc groove is opened at the upper end of the fan wheel (10), and the fan wheel (10) is irregularly fan-shaped, and arc angles are opened on both sides of the groove of the fan wheel (10). The fan wheel (10) is installed inside the fixed box (5), and the upper end of the fan wheel (10) contacts the ball (9). The lower part of the oil nozzle (7) is opposite to the groove on the fan wheel (10).

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