Operating mechanism of load isolation switch

Abstract

The utility model relates to an operating mechanism of a load isolation switch, which comprises a rotating seat, and a moving contact is arranged on the rotating seat. A mounting groove is formed in the rotating seat in a penetrating manner, and the moving contact is inserted into the mounting groove; the rotating seat is further provided with a first cover plate and a second cover plate which are used for covering openings in the two sides of the mounting groove respectively. The first cover plate and the second cover plate are respectively provided with a through hole through which the moving contact passes out of the mounting groove to the outside of the rotating seat. The second cover plate is fixedly arranged on the rotating base, a buckle facing the first cover plate is integrally formed on the inner side wall of the mounting groove, and a clamping groove used for being matched with the buckle in a clamped mode is formed in the first cover plate. According to the invention, the moving contact can be conveniently replaced, and the dismounting is convenient and fast.

Description

Technical Field

[0001] The present application relates to the technical field of load isolating switches, and in particular to an operating mechanism of a load isolating switch. Background Art

[0002] At present, load isolation switches have increased the ability to carry and disconnect load currents to a certain extent compared to traditional isolation switches. Although its main function is still to provide an obvious and safe disconnection point to achieve circuit isolation, its design allows it to directly disconnect or connect a certain range of load currents under certain conditions, rather than just completely unloaded operations. In addition to the basic isolation function, the load isolation switch can disconnect and connect a certain load current under limited conditions (such as small currents or specific conditions), which allows it to replace circuit breakers for simple circuit control in some applications.

[0003] There is a load isolating switch in the related technology, and its structure includes: the main conductive circuit, which is the core part of the isolating switch and is responsible for carrying and transmitting current. It includes a moving contact, a static contact, a terminal block, and a switch-on and switch-off operating mechanism. The operating mechanism is rotatably arranged in an insulating housing, the moving contact is fixedly arranged on the operating mechanism, the static contact is fixedly installed on the insulating housing, and the static contacts are respectively located on the rotation path of the moving contact; the moving contact is driven to rotate by controlling the forward or reverse rotation of the operating mechanism, and the connection and disconnection of the external circuit are realized by the contact and separation of the moving contact and the static contact.

[0004] For the above-mentioned load isolating switch, the moving contact is usually fastened to the operating mechanism by fasteners such as bolts. However, when the worn moving contact needs to be replaced, the above-mentioned fixing method requires the use of designated disassembly tools to complete the disassembly work. In addition, if the number of fasteners is large and relatively concealed, the disassembly and assembly process will become more cumbersome. Utility Model Content

[0005] The present application provides an operating mechanism for a load isolating switch, which has the effect of facilitating replacement of a moving contact and quick and easy disassembly.

[0006] The operating mechanism of a load isolating switch provided in the present application adopts the following technical solution:

[0007] A load isolating switch operating mechanism comprises a rotating seat, on which a moving contact is arranged; a mounting groove is penetrated on the rotating seat, in which the moving contact is inserted; the rotating seat is also provided with a first cover plate and a second cover plate for respectively covering the openings on both sides of the mounting groove; both the first cover plate and the second cover plate are penetrated with through holes for allowing the moving contact to pass from the mounting groove to the outside of the rotating seat; the second cover plate is fixedly arranged on the rotating seat, and a buckle facing the first cover plate is integrally formed on the inner side wall of the mounting groove, and a clamping groove for clamping with the buckle is arranged on the first cover plate; the first cover plate is detachably mounted on the rotating seat by mutual clamping of the buckle and the clamping groove, and the first cover plate and the second cover plate limit and fix the moving contact on the rotating seat.

[0008] Preferably, a plurality of groups of moving contacts are arranged in the mounting groove, and each group of moving contacts is arranged in sequence and spaced apart in the mounting groove; an assembly frame is provided in the mounting groove and is located between the first cover plate and the second cover plate, and each group of moving contacts is mounted on the assembly frame; the first cover plate and the second cover plate limit and fix the assembly frame in the mounting groove, and a limit socket facing the moving contact is integrally formed on the assembly frame, and a limit slot facing the limit socket is provided on the outer side wall of the moving contact, and the limit slot is used for allowing the respective relative limit sockets to be inserted into the moving contact.

[0009] Preferably, a resistance block is integrally formed on the side wall of the moving contact away from the limiting slot, and the resistance blocks on adjacent moving contacts in the same group resist each other under the limiting of the limiting socket.

[0010] Preferably, the first cover plate and the second cover plate are integrally formed with positioning grooves facing the respective opposing interference blocks; the mutually interfering interference blocks are inserted and restrained in the respective opposing positioning grooves, and the inner side walls of the positioning grooves and the outer side walls of the interference blocks fit each other.

[0011] Preferably, a limiting frame is integrally formed on the inner side wall of the installation slot, the limiting frame is located on the insertion path for placing the assembly rack in the installation slot, and the limiting frame is used to contact one side of the assembly rack placed in the installation slot.

[0012] Preferably, the rotating seat is provided with a clearance groove located on the side of the buckle away from the first cover plate.

[0013] Preferably, a guide strip is integrally formed on the inner side wall of the mounting groove, and the length of the guide strip extends along the direction in which the first cover plate is inserted and installed in the mounting groove; a guide slot facing the guide strip is provided on the first cover plate, and the first cover plate is inserted and arranged outside the guide strip through the guide slot.

[0014] In summary, the present application includes at least one of the following beneficial technical effects:

[0015] When the moving contact needs to be removed from the rotating seat, first release the mutual engagement between the buckle and the slot, then take the first cover plate out of the mounting slot, at this time the moving contact can be smoothly taken out from one side opening of the mounting slot, the whole removal process is convenient and quick, compared with the traditional method of fixing with fasteners, the disassembly work can be completed without the aid of designated disassembly tools; when installing the moving contact, first align one end of the moving contact with the through hole on the second cover plate and insert it into the mounting slot, then align the through hole on the first cover plate with the other end of the moving contact and insert it, and sleeve the first cover plate on the outside of the moving contact, and finally fix the first cover plate on the rotating seat by the mutual engagement between the buckle and the slot, at this time, the moving contact can be limited and fixed on the rotating seat under the action of the first cover plate and the second cover plate, which improves the disassembly and assembly efficiency;

[0016] The moving contacts are mounted on the assembly frame, and the limiting sockets and the limiting slots are plugged in and matched with each other to achieve the limiting fixation of each group of moving contacts, thereby further improving the connection stability and reliability of each group of moving contacts;

[0017] When the assembly rack with the moving contact installed is placed in the installation groove, the assembly rack can be limited by the limit frame, thereby effectively preventing the assembly rack from falling from the opening on the other side of the installation groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a partial structure of an embodiment of the present application installed in an insulating housing;

[0019] Figure 2 It is a schematic diagram of the partial structure explosion of an embodiment of the present application;

[0020] Figure 3 yes Figure 2 The local structural diagram of the rotating seat is highlighted in the figure;

[0021] Figure 4 It is a structural schematic diagram highlighting the moving contact and the assembly frame;

[0022] Figure 5 It is a structural schematic diagram highlighting the assembly rack.

[0023] Explanation of the accompanying drawings: 1. rotating seat; 10. mounting groove; 11. perforation; 12. buckle; 13. positioning groove; 14. limit frame; 15. clearance groove; 16. guide strip; 2. moving contact; 20. limit slot; 21. resistance block; 3. first cover plate; 30. clamping slot; 31. guide groove; 4. second cover plate; 5. assembly frame; 50. limit socket. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings.

[0025] An embodiment of the present application discloses an operating mechanism for a load isolation switch.

[0026] Reference Figure 1 , Figure 2 The operating mechanism of the load isolating switch includes a rotating seat 1 for rotating in the insulating housing of the load isolating switch, and multiple groups of moving contacts 2 are detachably mounted on the rotating seat 1, each group of moving contacts 2 has two, and this embodiment is illustrated by taking two groups of moving contacts 2 as an example. The rotating seat 1 is penetrated by a mounting groove 10, and the two groups of moving contacts 2 are inserted in the mounting groove 10 in a sequentially parallel and spaced manner.

[0027] like Figure 2 , Figure 3 As shown, the rotating seat 1 is also provided with a first cover plate 3 and a second cover plate 4 for respectively covering the openings on both sides of the mounting groove 10. The first cover plate 3 and the second cover plate 4 are arranged opposite to each other, the first cover plate 3 is detachably mounted on the rotating seat 1, and the second cover plate 4 is fixedly mounted on the rotating seat 1. The first cover plate 3 and the second cover plate 4 are penetrated with a through hole 11 for allowing the ends of the respective opposite moving contacts 2 to pass through the mounting groove 10 to the outside of the rotating seat 1.

[0028] like Figure 2 , Figure 3 As shown, a buckle 12 facing the first cover plate 3 is integrally formed on the inner side wall of the mounting groove 10, and the buckle 12 is made of plastic with a certain deformation ability. A clearance groove 15 is also provided on the rotating seat 1, which is located on the side of the buckle 12 away from the first cover plate 3, and the clearance groove 15 is used to provide the buckle 12 with a deformation space to bend in a direction away from the first cover plate 3. A clamping groove 30 for clamping with the buckle 12 is provided on the first cover plate 3, and the first cover plate 3 can be detachably mounted on the rotating seat 1 through the mutual clamping of the buckle 12 and the clamping groove 30. When it is necessary to release the locking of the first cover plate 3 by the buckle 12, an external force is applied to the buckle 12 in a direction away from the first cover plate 3, and as the buckle 12 gradually bends into the clearance groove 15 until the buckle 12 withdraws from the clamping groove 30, the locking of the first cover plate 3 can be released at this time, and in this state, the first cover plate 3 can be removed from the opening of the mounting groove 10.

[0029] like Figure 2 , Figure 3As shown, a guide bar 16 is integrally formed on the inner side wall of the installation groove 10, and the length of the guide bar 16 extends along the direction in which the first cover plate 3 is inserted into the installation groove 10. The guide bar 16 is located on the side of the first cover plate 3 away from the buckle 12, and a guide groove 31 facing the guide bar 16 is provided on the first cover plate 3. The guide groove 31 is used to be plugged with the guide bar 16, and the first cover plate 3 is plugged and arranged outside the guide bar 16 through the guide groove 31. When the first cover plate 3 is installed, the mutual plug-in cooperation between the guide bar 16 and the guide groove 31 can guide the installation of the first cover plate 3, thereby ensuring that the installation position of the first cover plate 3 is accurate and preventing the first cover plate 3 from being offset.

[0030] like Figure 2 , Figure 4 as well as Figure 5 As shown, an assembly rack 5 located between the first cover plate 3 and the second cover plate 4 can be detachably installed in the installation groove 10, and each group of moving contacts 2 is mounted on the same assembly rack 5. The first cover plate 3 and the second cover plate 4 are used to limit and fix the assembly rack 5 and the moving contacts 2 on the installation groove 10 and the rotating seat 1. A plurality of limit sockets 50 facing each automatic contact 2 are integrally formed on the assembly rack 5, and a limit slot 20 facing each limit socket 50 is integrally formed on the outer side wall of the moving contact 2. The limit slot 20 is used for inserting the respective relative limit sockets 50 into the moving contact 2.

[0031] The assembly frame 5 has a certain elastic deformation ability. When the moving contact 2 is plugged into the assembly frame 5, the limiting socket 50 will first contact the outer wall of the moving contact 2. At this time, the limiting socket 50 will push the assembly frame 5 to bend away from each automatic contact 2 under the reaction force of the outer wall of the moving contact 2, until the limiting socket 50 moves to face the respective relative limiting slots 20. At this time, the limiting socket 50 will automatically insert into the respective relative limiting slots 20. Through the mutual plug-in cooperation of the limiting socket 50 and the limiting slot 20, the moving contact 2 can be fixed on the assembly frame 5. The connection stability and reliability of each group of moving contacts 2 installed on the assembly frame 5 are further improved.

[0032] like Figure 4 , Figure 5 As shown, a resisting block 21 is integrally formed on the side wall of the moving contact 2 away from the limiting slot 20 , and the resisting blocks 21 on the moving contacts 2 in the same group are arranged opposite to each other, and the resisting blocks 21 resist each other under the limiting position of the limiting sockets 50 on both sides.

[0033] like Figure 2 , Figure 4As shown, the first cover plate 3 and the second cover plate 4 are integrally formed with positioning grooves 13 facing the respective opposing abutment blocks 21, one side of the mutually abutting abutment blocks 21 is inserted and limited in the respective opposing positioning grooves 13, and the outer side wall of the abutment block 21 limited in the positioning groove 13 is mutually fitted with the inner side wall of the positioning groove 13. The positioning groove 13 can further limit the moving contact 2, thereby further improving the overall stability of the moving contact 2.

[0034] like Figure 3 , Figure 4 As shown, a limiting frame 14 is integrally formed on the inner side wall of the installation groove 10, and the limiting frame 14 is located on the insertion path for placing the assembly rack 5 in the installation groove 10, and the limiting frame 14 is used to contact one side of the assembly rack 5 placed in the installation groove 10. When the assembly rack 5 with the moving contact 2 installed is placed in the installation groove 10, the limiting frame 14 can limit the assembly rack 5, thereby effectively preventing the assembly rack 5 from falling from the opening on the other side of the installation groove 10.

[0035] The implementation principle is: when the moving contact 2 needs to be removed from the rotating seat 1, first release the mutual engagement between the buckle 12 and the slot 30, and then take the first cover plate 3 out of the mounting slot 10. At this time, the moving contact 2 together with the assembly frame 5 can be smoothly taken out from a side opening of the mounting slot 10. The entire removal process is convenient and quick. Compared with the traditional method of fixing with fasteners, the disassembly work can be completed without the aid of designated disassembly tools. When installing the moving contact 2, first pre-install the moving contact 2 on the assembly frame 5, then align one end of the moving contact 2 with the through hole 11 on the second cover plate 4 and insert it into the installation groove 10, then align the through hole 11 on the first cover plate 3 with the other end of the moving contact 2 and insert it, and put the first cover plate 3 on the outside of the moving contact 2, and finally fix the first cover plate 3 on the rotating seat 1 through the mutual snap connection between the buckle 12 and the slot 30. At this time, under the action of the first cover plate 3 and the second cover plate 4, the moving contact 2 can be limited and fixed on the rotating seat 1, thereby improving the disassembly and assembly efficiency.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An operating mechanism of a load isolating switch, comprising a rotating seat (1), wherein a moving contact (2) is arranged on the rotating seat (1); characterized in that: The rotating seat (1) is provided with a mounting groove (10), and the moving contact (2) is inserted into the mounting groove (10); the rotating seat (1) is also provided with a first cover plate (3) and a second cover plate (4) for respectively covering the openings on both sides of the mounting groove (10); the first cover plate (3) and the second cover plate (4) are both provided with through holes (11) for allowing the moving contact (2) to pass through the mounting groove (10) to the outside of the rotating seat (1); the second cover plate (4) is fixedly ... a through hole (11) for allowing the moving contact (2) to pass through the mounting groove (10) to the outside of the rotating seat (1); the second cover plate (4) is fixedly provided with a first cover plate (3) and a second cover plate (4) for respectively covering the openings on both sides of the mounting groove (10); the first cover plate (3) and the second cover plate (4) are fixedly provided with a first cover plate (3) and a second cover plate (4) for respectively covering the openings on both sides of the mounting groove (10); the first cover plate (3) and the second cover plate (4) are fixedly provided with a first cover plate (3) and a second cover plate (4) for respectively covering the openings on both sides of the mounting groove (10); the first cover plate (3) and the second cover plate (4) are fixedly provided with a first cover plate (3) and a second cover plate (4) for respectively covering the opening The first cover plate (3) is provided with a snap button (12) which faces the first cover plate (3) and is disposed on the rotating seat (1); the inner side wall of the mounting groove (10) is integrally formed with a snap button (12) which faces the first cover plate (3); the first cover plate (3) is provided with a snap button (30) for snapping with the snap button (12); the first cover plate (3) is detachably mounted on the rotating seat (1) by mutual snapping of the snap button (12) and the snap button (30); the first cover plate (3) and the second cover plate (4) limit and fix the moving contact (2) on the rotating seat (1).

2. The operating mechanism of the load isolation switch according to claim 1 is characterized in that: A plurality of groups of moving contacts (2) are arranged in the installation groove (10), and each group of moving contacts (2) is arranged in sequence and spaced apart in the installation groove (10); an assembly frame (5) is arranged in the installation groove (10) and is located between the first cover plate (3) and the second cover plate (4), and each group of moving contacts (2) is mounted on the assembly frame (5); the first cover plate (3) and the second cover plate (4) limit and fix the assembly frame (5) in the installation groove (10); a limit socket (50) facing the moving contact (2) is integrally formed on the assembly frame (5); a limit slot (20) facing the limit socket (50) is arranged on the outer side wall of the moving contact (2), and the limit slot (20) is used for inserting the respective opposite limit sockets (50) into the moving contact (2).

3. The operating mechanism of the load isolation switch according to claim 2 is characterized in that: A resisting block (21) is integrally formed on the side wall of the movable contact (2) facing away from the limiting slot (20), and the resisting blocks (21) on adjacent movable contacts (2) in the same group resist each other under the limiting of the limiting socket (50).

4. The operating mechanism of the load isolation switch according to claim 3 is characterized in that: The first cover plate (3) and the second cover plate (4) are both integrally formed with positioning grooves (13) facing the respective opposing abutment blocks (21); the mutually abutting abutment blocks (21) are inserted into and positioned in the respective opposing positioning grooves (13), and the inner side walls of the positioning grooves (13) and the outer side walls of the abutment blocks (21) are mutually fitted.

5. The operating mechanism of the load isolation switch according to claim 2 is characterized in that: A limiting frame (14) is integrally formed on the inner side wall of the installation groove (10), the limiting frame (14) being located on a plugging path for placing the assembly rack (5) in the installation groove (10), and the limiting frame (14) being used to contact one side of the assembly rack (5) placed in the installation groove (10).

6. The operating mechanism of the load isolation switch according to claim 1, characterized in that: The rotating seat (1) is provided with a clearance groove (15) located on the side of the buckle (12) facing away from the first cover plate (3).

7. The operating mechanism of the load isolation switch according to claim 1, characterized in that: A guide bar (16) is also integrally formed on the inner side wall of the installation groove (10), and the length of the guide bar (16) extends along the direction in which the first cover plate (3) is inserted and installed in the installation groove (10); the first cover plate (3) is provided with a guide groove (31) facing the guide bar (16), and the first cover plate (3) is inserted and arranged outside the guide bar (16) through the guide groove (31).

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