Linkage piece for controlling protection switch

Abstract

The utility model discloses a linkage member used for controlling a protection switch, and relates to the technical field of control protection switches, the linkage member used for controlling the protection switch comprises a pedestal and a linkage member, the front end of the pedestal is provided with a housing, the front end of the housing is provided with a housing cover, the housing cover is provided with a turn button, and the turn button is provided with a button. The upper end of the knob is provided with a display, the lower end of the knob is provided with a handle, the lower end of the shell cover is provided with a slot port, the lower end of the shell is provided with a wiring socket, the upper end of the shell cover is provided with a connecting rod, the connecting rod is fixedly connected with the shell cover, and one side of the connecting rod penetrates through and extends out of the shell. A permanent magnet operating mechanism is arranged on the base, the permanent magnet operating mechanism comprises an iron yoke, a first electromagnet, a second electromagnet, a coil, an armature, a driving rod, an auxiliary rod and a shaft bushing, transmission parts are arranged on the two sides of the permanent magnet operating mechanism, and the problem that a linkage part of an existing device cannot be conveniently overhauled is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of control and protection switches, specifically to a linkage component for controlling and protecting switches. Background Technology

[0002] "Control and protection switchgear" is a new type of product in low-voltage electrical appliances. In terms of its structure and function, the control and protection switchgear series products are no longer individual products such as contactors, circuit breakers, or thermal relays, but a set of control and protection systems. This overcomes the phenomenon of incoordination between protection and control characteristics when electrical products with different evaluation standards are combined together, and greatly improves the operational reliability and continuous operation performance of the control and protection system.

[0003] A linkage for controlling a protective switch is available, as described in announcement number CN117637400A. This device includes a base, a contact assembly, a permanent magnet operating mechanism, and a housing. A bracket is mounted on the base, and a microswitch and a drive component for opening / closing the contacts of the microswitch are mounted on the bracket. The permanent magnet operating mechanism includes a first electromagnet fixedly mounted inside the bracket and a second electromagnet that reciprocates towards the first electromagnet. The bracket is rotatably mounted with the linkage. One end of the linkage is positioned between the first and second electromagnets, and a return spring is connected to the other end of the linkage. The end of the return spring away from the linkage is connected to the bracket. The linkage causes the drive component to slide on the bracket by switching the first and second electromagnets energized / disconnected.

[0004] However, the aforementioned device is not convenient for internal structure maintenance during use; therefore, we propose a linkage component for controlling the protection switch to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a linkage component for controlling a protective switch, so as to solve the problem that the linkage component of the existing device mentioned in the background art cannot be easily inspected and maintained.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a linkage component for controlling a protective switch, comprising a base, a linkage component, a housing at the front end of the base, a housing cover at the front end of the housing, a knob on the housing cover, a display at the upper end of the knob, a handle at the lower end of the knob, a slot at the lower end of the housing cover, a wiring socket at the lower end of the housing, and a connecting rod at the upper end of the housing cover. The connecting rod is fixedly connected to the housing cover, and one side of the connecting rod extends through and outwards. Outside the housing, a permanent magnet operating mechanism is provided on the base. The permanent magnet operating mechanism includes an iron yoke, a first electromagnet, a second electromagnet, a coil, an armature, a drive rod, an auxiliary rod, and a bushing. Transmission components are provided on both sides of the permanent magnet operating mechanism, and the transmission components are symmetrically arranged at both ends of the permanent magnet operating mechanism. A linkage component is fixedly connected to the lower end of the front end of the permanent magnet operating mechanism. A bracket is provided at the front end of the linkage component, and a rotating rod is provided on the bracket. A contact component is provided at the lower end of the linkage component, and an electronic transformer housing is provided at the lower end of the contact component.

[0007] Preferably, an electronic transformer assembly is disposed inside the housing of the electronic transformer.

[0008] Preferably, the base has protrusions on both sides, and three sets are arranged symmetrically in pairs.

[0009] Preferably, the transmission component includes a micro switch, a driving component, a return spring, and a connecting block. Each end of the driving component is provided with a micro switch, the linkage component is provided with a connecting block, and the lower end of the driving component is provided with a return spring, with the two ends of the return spring connected to the connecting block and the transmission component, respectively.

[0010] Preferably, the handle is provided with a fluorescent sticker, and the fluorescent sticker is bonded to the handle.

[0011] Preferably, one end of the connecting rod is threaded, and the thread and the connecting rod are integrally formed.

[0012] Preferably, a fixing block is provided on the thread, and the fixing block is threadedly connected to the thread.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model designs the outer shell cover as a flip-top, so that when the device needs to be inspected, the outer shell cover can be opened by pulling the handle, and after being limited, the fixing block on one side of the connecting rod can be rotated to fix the outer shell cover, thereby facilitating the inspection and maintenance of the internal linkage components and solving the problem of inconvenient inspection and maintenance of the linkage components in the existing device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 3 This is a partial enlarged view of point A of this utility model;

[0018] Figure 4 This is a partial enlarged view of the flip-top rotation part of this utility model;

[0019] In the diagram: 1. Base; 2. Outer shell; 3. Outer shell cover; 4. Display; 5. Knob; 6. Fluorescent sticker; 7. Handle; 8. Fixing block; 9. Slot; 10. Wiring socket; 11. Rotary rod; 12. Contact component; 13. Electronic transformer shell; 14. First electromagnet; 15. Linkage component; 16. Bracket; 17. Transmission component; 171. Micro switch; 172. Drive component; 173. Return spring; 174. Connecting block; 18. Connecting rod; 19. Second electromagnet; 20. Thread; 21. Protrusion. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figure 1-4 This utility model provides an embodiment of a linkage component for controlling a protective switch, comprising a base 1 with a housing 2 at its front end, a housing cover 3 at its front end, a knob 5 on the housing cover 3, a display 4 at the upper end of the knob 5, a handle 7 at the lower end of the knob 5, a slot 9 at the lower end of the housing cover 3, a wiring socket 10 at the lower end of the housing 2, a connecting rod 18 at the upper end of the housing cover 3, the connecting rod 18 being fixedly connected to the housing cover 3, and one side of the connecting rod 18 penetrating and extending outside the housing 2; and a permanent magnet operating mechanism on the base 1. The operating mechanism includes a yoke, a first electromagnet 14, a second electromagnet 19, a coil, an armature, a drive rod, an auxiliary rod, and a bushing. Transmission components 17 are provided on both sides of the permanent magnet operating mechanism, and the transmission components 17 are symmetrically arranged at both ends of the permanent magnet operating mechanism. A linkage component 15 is fixedly connected to the lower end of the front end of the permanent magnet operating mechanism. A bracket 16 is provided at the front end of the linkage component 15. A rotating rod 11 is provided on the bracket 16. The rotating rod 11 extends and passes through the outer casing 3 and is fixedly connected to the knob 5. A contact component 12 is provided at the lower end of the linkage component 15. An electronic transformer casing 13 is provided at the lower end of the contact component 12.

[0022] Please see Figure 2The electronic transformer housing 13 contains an electronic transformer group, which can increase or decrease the AC voltage by changing the turns ratio of the primary coil and the secondary coil inside the electronic transformer.

[0023] Please see Figure 2 The base 1 has protrusions 21 on both sides, and three sets are arranged symmetrically in pairs to facilitate the disassembly and assembly of the outer shell 2.

[0024] Please see Figure 3 The transmission component 17 includes a micro switch 171, a drive component 172, a return spring 173, and a connecting block 174. Each end of the drive component 172 is provided with a micro switch 171, the linkage component 15 is provided with a connecting block 174, and the lower end of the drive component 172 is provided with a return spring 173. The two ends of the return spring 173 are respectively connected to the connecting block 174 and the transmission component 17, thereby realizing the operation of the permanent magnet operating mechanism.

[0025] Please see Figure 1 A fluorescent sticker 6 is provided on the handle 7, and the fluorescent sticker 6 is bonded to the handle 7 to enable the handle 7 to have night vision function.

[0026] Please see Figure 4 One end of the connecting rod 18 is provided with a thread 20, and the thread 20 and the connecting rod 18 are integrally structured to facilitate the installation of the fixing block 8.

[0027] Please see Figure 4 A fixing block 8 is provided on the thread 20, and the fixing block 8 is threadedly connected to the thread 20. The outer shell cover 3 is fixed by tightening the fixing block 8.

[0028] Working principle: When energized, the first electromagnet 14 and the second electromagnet 19 attract each other, causing the second electromagnet 19 to move the force arm, which in turn causes the linkage 15 to rotate on the bracket 16. At this time, the return spring 173 is stretched, and there is no force between the rotating arm and the drive rod. When the control and protection switch fails to operate due to an accident or external power outage, the first electromagnet 14 and the second electromagnet 19 are not energized, the return spring 173 returns to its natural state, and the second electromagnet 19 moves away from the first electromagnet 14. The drive spring is compressed again, and the relative position of the contacts on the two microswitches 171 and the clearance groove changes. The contacts on the microswitches 171 all abut against the side wall of the drive rod. The two microswitches 171 are activated simultaneously, and the moving contact contacts the stationary contact. When the device needs to be repaired, the outer cover 3 can be opened by the handle 7. After limiting the position, the fixing block 8 on one side of the connecting rod 18 is rotated to fix the outer cover 3, thus facilitating the repair of the internal structure of the device.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A linkage for controlling a protective switch comprising a base (1), a linkage (15), characterized in that: The base (1) front end is provided with a shell (2), the shell (2) front end is provided with a shell cover (3), the shell cover (3) is provided with a knob (5), the knob (5) upper end is provided with a display (4), the knob (5) lower end is provided with a handle (7), the shell cover (3) lower end is provided with a slot (9), the shell (2) lower end is provided with a wiring outlet (10), the shell cover (3) upper end is provided with a connecting rod (18), connecting rod (18) and shell cover (3) fixedly connected, and connecting rod (18) one side penetrates and extends to the shell (2) outside, the base (1) is provided with a permanent magnet operating mechanism, the permanent magnet operating mechanism both sides are provided with transmission components (17), and transmission components (17) are symmetrically arranged at both ends of the permanent magnet operating mechanism, the permanent magnet operating mechanism front end lower end is fixedly connected with a linkage (15), the linkage (15) front end is provided with a support (16), the support (16) is provided with a rotating rod (11), the rotating rod (11) extends and penetrates the shell cover (3) and is fixedly connected with the knob (5).

2. A linkage for controlling a protective switch according to claim 1, characterized in that: The lower end of the linkage (15) is provided with a contact assembly (12), and the lower end of the contact assembly (12) is provided with an electronic transformer shell (13). The electronic transformer shell (13) is provided with an electronic transformer group.

3. A linkage for controlling a protective switch according to claim 1, wherein: The base (1) both sides are provided with a lug (21), and three groups are symmetrically arranged.

4. A linkage for controlling a protective switch according to claim 1, wherein: The transmission component (17) includes a micro switch (171), a driving piece (172), a reset spring (173) and a connecting block (174), the driving piece (172) both ends are provided with a micro switch (171), the linkage (15) is provided with a connecting block (174), the driving piece (172) lower end is provided with a reset spring (173), and the reset spring (173) both ends are connected on the connecting block (174) and the transmission component (17) respectively.

5. A linkage for controlling a protective switch according to claim 1, wherein: The handle (7) is provided with a fluorescent paste (6), and the fluorescent paste (6) is adhesively connected with the handle (7).

6. A linkage for controlling a protective switch according to claim 1, wherein: The connecting rod (18) one end is provided with a thread (20), and the thread (20) and the connecting rod (18) are in an integral structure.

7. A linkage for controlling a protective switch according to claim 6, characterized in that: The thread (20) is provided with a fixed block (8), and the fixed block (8) is threadedly connected with the thread (20).

8. A linkage for controlling a protective switch according to claim 1, wherein: The permanent magnet operating mechanism includes an iron yoke, a first electromagnet (14), a second electromagnet (19), a coil, an armature, a driving rod, an auxiliary rod and a shaft bushing.

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