Mechanical electrical interlocking device

Abstract

The utility model discloses a mechanical electrical interlocking device which comprises a base plate and a switch piece, the switch piece is installed on the surface of the base plate, the mechanical electrical interlocking device further comprises an interlocking mechanism, the interlocking mechanism comprises a lug plate, a cover box, a supporting ring, a spring A, a guide pipe, a stop rod, a supporting plate, a spring B and a guide seat, the surface of the base plate on the outer side of the switch piece is covered with the cover box, and the guide seat is arranged on the base plate. The interlocking mechanism is arranged at the position of a base plate of an interlocking device in the prior art, and the interlocking mechanism can form a mechanical outer lock structure outside the base plate, so that the interlocking mechanism is matched with a switch piece to form a mechanical electrical interlocking device, and when the switch piece is about to be touched by mistake by external force, the mechanical electrical interlocking device can be unlocked. The mechanical outer lock structure composed of the guide pipe, the cover box and the stop rod can cover and protect the switch piece and prevent the switch piece from being touched by mistake, the spring serves as a reset structure of the whole interlocking mechanism to provide elastic reset force, and even if the elasticity of the spring is weakened, the guide pipe and the stop rod of the interlocking mechanism can still be normally used.

Description

Technical Field

[0001] This utility model relates to the field of mechanical and electrical interlocking technology, and in particular to a mechanical and electrical interlocking device. Background Technology

[0002] Mechanical and electrical interlocking devices are safety control systems that use mechanical devices and electrical signals to interlock equipment. They can prevent equipment from starting before it has reached a safe state, thereby avoiding accidents. The principle of mechanical and electrical interlocking devices is that when a part of the equipment or circuit is in an unsafe state, the relevant equipment or circuit is locked by mechanical or electrical means, preventing it from starting or continuing to operate.

[0003] Publication No. CN221149848U discloses a mechanical and electrical interlocking device, including a base plate, a housing fixedly connected to the top of the base plate, a rotating shaft 1 embedded in the top of the housing, a hexagonal prism embedded inside the rotating shaft 1, the bottom end of the hexagonal prism extending into the housing, a rotating shaft 2 embedded inside the bottom end of the hexagonal prism, a pressing member fixedly connected to the bottom end of the rotating shaft 2, a switch member fixedly provided on the top of the base plate, the switch member being directly below the pressing member, a slot being provided inside the rotating shaft 2, and auxiliary components being provided on both sides of the rotating shaft 2, the auxiliary components including L-shaped plates. The beneficial effect of this utility model is that after use, rotating the knob in the opposite direction and the spring rebound can make the locking block lock back into the slot, thus restricting the rotating shaft 2 and preventing the rotating shaft 2 from moving up and down arbitrarily, thereby playing a role in preventing accidental activation.

[0004] Existing patented mechanical-electric interlocking devices interlock with electrical switches by setting up external mechanical structures to prevent accidental activation. However, such anti-accidental activation structures are relatively complex, and the ropes used are easily worn parts. After the ropes wear out, it will affect the normal use of the electrical interlocking device, thus limiting the service life of the electrical interlocking device and causing inconvenience in its use. Therefore, we propose a mechanical-electric interlocking device. Utility Model Content

[0005] The main objective of this invention is to provide a mechanical-electrical interlocking device. It improves upon existing patented interlocking devices by incorporating an interlocking mechanism on the base plate. This mechanism forms a mechanical external locking structure outside the base plate, thus cooperating with the switch to create a mechanical-electrical interlocking device. When an external force is about to accidentally activate the switch, the mechanical external locking structure, consisting of a guide tube, a cover, and a stop rod, protects the switch and prevents accidental activation. Furthermore, the interlocking mechanism does not contain easily worn parts such as ropes. The entire interlocking mechanism uses a spring as a reset structure to provide elastic reset force. Even after the spring's elasticity weakens, the guide tube and stop rod of the interlocking mechanism can still function normally, ensuring the service life of the interlocking mechanism and effectively solving the problems in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A mechanical-electrical interlocking device includes a base plate and a switch component. The switch component is mounted on the surface of the base plate. The device also includes an interlocking mechanism, which comprises an ear plate, a cover, a retaining ring, a spring A, a guide tube, a stop rod, a support plate, a spring B, and a guide seat. The base plate surface outside the switch component is covered by the cover, and ear plates are fixed to both sides of the cover. The ear plates are bolted to the base plate surface. A retaining ring is fixed inside the cover on one side of the switch component, and a spring A is inserted into the annular groove of the retaining ring. The side cover surface has a through-cut guide groove for mounting the conduit and the pressure rib, and the pressure rib is symmetrically fixed on both sides of the conduit body. The conduit surface between the pressure ribs has a locking groove for inserting the stop rod, and the cover surface above the locking groove is equipped with a guide seat. The seat plate of the guide seat has a guide hole. The stop rod passes through the guide hole and is locked with a nut. A support plate is fixed to the outside of the stop rod below the guide hole. A spring B is clamped to the outside of the stop rod between the support plate and the guide seat. A pressure handle is fixed inside the outer tube opening of the conduit away from the support ring.

[0008] Furthermore, threaded holes are provided on the surface of the ear plate and the base plate, and bolts are screwed between the threaded holes of the ear plate and the base plate.

[0009] By adopting the above technical solution, bolts can be screwed into the threaded holes of the ear plate and the base plate, thereby installing the ear plate and the cover box on the base plate.

[0010] Furthermore, the ring body has side ribs fixed on both sides, and the side ribs are welded and fixed to the inner wall of the cover box;

[0011] By adopting the above technical solution, the support ring can be fixed inside the cover box with the side ribs to obtain support, so that the support ring can support the spring A.

[0012] Furthermore, the ring body surface of the ring is recessed with a ring groove, and a spring A is inserted into the groove cavity of the ring groove;

[0013] By adopting the above technical solution, the ring ring can hold and support the spring coil of spring A by using the ring groove.

[0014] Furthermore, the rib of the reinforcing rib is inserted into the groove cavity of the guide groove, and the rib of the reinforcing rib presses against the spring body of spring A.

[0015] By adopting the above technical solution, the rib of the pressure rib can be inserted into the groove cavity of the guide groove for guidance and clamping. When the guide tube and the pressure rib slide in the guide groove, the pressure rib can clamp the spring A to obtain elastic support, so that the guide tube can elastically leave the switch with the help of the spring A.

[0016] Furthermore, side seats are symmetrically fixed on both sides of the base of the guide seat, and mounting holes for screwing bolts are provided between the side seats and the box body of the cover.

[0017] By adopting the above technical solution, there are mounting holes between the side plate of the guide seat and the box body of the cover, into which bolts can be screwed in, thereby installing the guide seat outside the cover.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This utility model improves the interlocking mechanism by setting an interlocking mechanism on the base plate of the existing patented interlocking device. The interlocking mechanism can form a mechanical external locking structure outside the base plate, thereby forming a mechanical and electrical interlocking device with the switch. When an external force is about to accidentally touch the switch, the mechanical external locking structure composed of the guide tube, the cover box and the stop rod can protect the switch and prevent it from being accidentally touched.

[0020] Furthermore, there are no easily worn parts such as ropes in the interlocking mechanism. The entire interlocking mechanism uses springs as the reset structure to provide elastic reset force. Even if the spring elasticity weakens, the guide tube and stop rod of the interlocking mechanism can still be used normally, ensuring the service life of the interlocking mechanism. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a mechanical and electrical interlocking device according to the present invention.

[0022] Figure 2 This is a schematic diagram showing the disassembled cover and base plate of a mechanical and electrical interlocking device according to this utility model.

[0023] Figure 3 This is an exploded view of the interlocking mechanism of a mechanical and electrical interlocking device according to this utility model.

[0024] Figure 4 This is a cross-sectional view of the housing of a mechanical and electrical interlocking device according to this utility model.

[0025] In the diagram: 1. Base plate; 2. Switch; 3. Interlocking mechanism; 4. Ear plate; 5. Cover box; 6. Support ring; 7. Guide groove; 8. Spring A; 9. Guide tube; 10. Pressure rib; 11. Lock groove; 12. Stop rod; 13. Support ring; 14. Spring B; 15. Guide seat; 16. Guide hole; 17. Nut. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figure 1-4As shown, a mechanical-electrical interlocking device includes a base plate 1 and a switch element 2. The switch element 2 is mounted on the surface of the base plate 1. The device also includes an interlocking mechanism 3, which comprises an ear plate 4, a cover 5, a support ring 6, a spring A8, a guide tube 9, a stop rod 12, a support plate 13, a spring B14, and a guide seat 15. The cover 5 covers the surface of the base plate 1 outside the switch element 2, and ear plates 4 are fixed to both sides of the cover 5. The ear plates 4 are bolted to the surface of the base plate 1. A support ring 6 is fixed inside the cover 5 on one side of the switch element 2, and a spring A8 is inserted into the annular groove of the support ring 6. The cover 5 on the side of the spring A8... The surface of the guide tube 9 is provided with a guide groove 7 for mounting the guide tube 9 and the pressure rib 10. The pressure rib 10 is symmetrically fixed on both sides of the tube body of the guide tube 9. The surface of the guide tube 9 between the pressure ribs 10 is provided with a locking groove 11 for inserting the stop rod 12. The surface of the cover box 5 above the locking groove 11 is provided with a guide seat 15. The surface of the seat plate of the guide seat 15 is provided with a guide hole 16. The stop rod 12 passes through the guide hole 16 and is locked with a nut 17. The stop rod 12 below the guide hole 16 is fixed with a support plate 13. The stop rod 12 between the support plate 13 and the guide seat 15 is fitted with a spring B14. The outer opening of the guide tube 9 away from the support ring 6 is fixed with a pressure handle.

[0028] The ear plate 4 and the base plate 1 are provided with threaded holes on their surfaces, and bolts are screwed between the ear plate 4 and the threaded holes of the base plate 1.

[0029] By adopting the above technical solution, bolts can be screwed into the threaded holes of the ear plate 4 and the base plate 1, thereby installing the ear plate 4 and the cover box 5 on the base plate 1.

[0030] Among them, the ring 6 has side ribs fixed on both sides of the ring body, and the side ribs are welded and fixed to the inner wall of the cover box 5.

[0031] By adopting the above technical solution, the support ring 6 can be fixed inside the cover box 5 with the side ribs to obtain support, so that the support ring 6 can support the spring A8.

[0032] The ring 6 has a recessed groove on its surface, and a spring A8 is inserted into the groove.

[0033] By adopting the above technical solution, the ring 6 can be used to hold and support the spring ring of spring A8 by using the ring groove.

[0034] The rib of the pressure rib 10 is inserted into the groove cavity of the guide groove 7, and the rib of the pressure rib 10 is pressed against the spring body of the spring A8.

[0035] By adopting the above technical solution, the rib of the pressure rib 10 can be inserted into the groove cavity of the guide groove 7 for guidance and clamping. When the guide tube 9 and the pressure rib 10 slide at the guide groove 7, the pressure rib 10 can clamp the spring A8 to obtain elastic support, so that the guide tube 9 can elastically leave the switch 2 with the help of the spring A8.

[0036] Among them, the guide seat 15 has side seat plates symmetrically fixed on both sides of the seat body, and the side seat plates and the box body of the cover box 5 are provided with mounting holes for screwing bolts.

[0037] By adopting the above technical solution, there is a mounting hole between the side plate of the guide seat 15 and the box body of the cover box 5, into which bolts can be screwed in, so that the guide seat 15 can be installed outside the cover box 5.

[0038] It should be noted that this utility model is a mechanical-electrical interlocking device. An interlocking mechanism 3 is improved upon in existing patented interlocking devices by adding an interlocking mechanism 3 to the base plate. The cover 5 of the interlocking mechanism 3 is secured to the surface of the base plate 1 with an ear plate 4 and bolts. Then, the guide tube 9 and the pressure rib 10 can be inserted into the cover 5 along the guide groove 7. Simultaneously, the stop rod 12 can be inserted into the locking groove 11 on the surface of the guide tube 9. The spring B14 is then sleeved on the stop rod 12 and supported by the support plate 13. The guide seat 15 is then sleeved on the outside of the stop rod 12 through the guide hole 16, and a nut is screwed onto the outside of the stop rod 12 passing through the guide hole 16. The guide seat 15 can be secured to the outside of the cover 5 with bolts. When the switch 2 is connected to the electrical control equipment at its exposed electrical connection position below the base plate 1, the interlocking mechanism 3 can form a mechanical external locking structure outside the base plate 1, thus cooperating with the switch 2 to form a complete interlocking mechanism. In the mechanical and electrical interlocking device, when the switch 2 needs to be opened, the stop rod 12 can be pinched and lifted upwards away from the lock groove 11, causing the spring B14 to elastically contract and accumulate elasticity. At this time, the mechanical external lock structure is unlocked. The pressure handle of the guide tube 9 can be pressed, so that the tube body of the guide tube 9 passes through the spring A8 and the support ring 6 to press the switch 2 for switch control operation. At this time, the spring A8 elastically contracts and accumulates elasticity, and the pressure handle of the guide tube 9 is slowly released. The guide tube 9 is supported by the pressure rib 10 at the spring A8 and moves backwards. After the lock groove 11 is below the stop rod 12, the stop rod 12 is released. Under the action of the rebound force of the spring B14, the stop rod 12 is inserted downwards into the lock groove 11 to relock. When an external force is about to accidentally touch the switch 2, the mechanical external lock structure composed of the guide tube 9, the cover box 5 and the stop rod 12 can protect the switch 2 and prevent the switch 2 from being accidentally touched.

[0039] It should be noted that this utility model is a mechanical and electrical interlocking device. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mechanical electrical interlocking device comprising a base plate (1) and a switch member (2), the switch member (2) is surface mounted on the base plate (1), characterized in that: Also include interlocking mechanism (3), the interlocking mechanism (3) includes lug (4), cover box (5), ring (6), spring A (8), catheter (9), stop rod (12), supporting plate (13), spring B (14) and guide seat (15), the base plate (1) surface outside the switch piece (2) is covered with cover box (5), and the box body of cover box (5) is fixed with lug (4) on both sides, the lug (4) is locked on the surface of base plate (1) by bolt, the cover box (5) inside the switch piece (2) side is fixed with ring (6), and spring A (8) is clamped in the ring groove of ring (6), the surface of cover box (5) on the side of spring A (8) is provided with guide groove (7) for clamping catheter (9) and pressing rib (10), and pressing rib (10) is symmetrically fixed on both sides of the pipe body of catheter (9), the surface of catheter (9) between pressing rib (10) is provided with lock groove (11) for inserting stop rod (12), and the surface of cover box (5) above lock groove (11) is provided with guide seat (15), the seat plate surface of guide seat (15) is provided with guide hole (16), the stop rod (12) passes through guide hole (16) and is locked with nut (17), and the outer fixing of stop rod (12) below guide hole (16) is provided with supporting plate (13), the outer sleeve of stop rod (12) between supporting plate (13) and guide seat (15) is provided with spring B (14), the outer pipe opening of catheter (9) away from ring (6) is fixed with pressing handle.

2. A mechanical electrical interlock device according to claim 1, characterized in that: The plate body surface of lug (4) and base plate (1) is provided with threaded hole, and the threaded hole between lug (4) and base plate (1) is screwed with bolt.

3. A mechanical electrical interlock device according to claim 1, wherein: The ring body of ring (6) is fixed with edge rib on both sides, and the inner wall of cover box (5) is welded with edge rib.

4. A mechanical electrical interlock device according to claim 1, characterized in that: The surface of ring body of ring (6) is recessed and provided with ring recess, and spring A (8) is clamped in the groove cavity of ring recess.

5. A mechanical electrical interlock device according to claim 1, wherein: The rib body of pressing rib (10) is clamped into the opposite groove cavity of guide groove (7), and the rib body of pressing rib (10) is pressed on the spring body outside spring A (8).

6. A mechanical electrical interlock device according to claim 1, wherein: The seat body of guide seat (15) is symmetrically fixed with side seat plate on both sides, and the mounting hole for screwing bolt is provided between the box body of cover box (5) and side seat plate.

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