Fuse type disconnecting switch

Abstract

The utility model provides a fuse-type disconnecting switch, comprising a switch body which comprises a pedestal and two first side plates which are arranged on the pedestal and are oppositely arranged, and each first side plate is provided with a first chute which is arranged along the vertical direction and a second chute which is arranged at one side of the first chute and is arranged along the inclined direction; a fusible core is fixed on the upper cover, and the upper cover is provided with a first sliding block sliding along the first sliding groove; the handle is installed on the switch body in a mode of rotating around a first shaft, the first shaft can slide along the second sliding groove, and the handle is further provided with a matching portion in linkage with the first sliding block. By operating the handle, the handle can slide along the second sliding groove while rotating around the first shaft, so that the matching part can drive the first sliding block to move up and down along the first sliding groove, namely, the upper cover can move up and down relative to the switch body through rotation and movement of the handle.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to a fuse type isolating switch. Background Art

[0002] Isolating switches are usually used in conjunction with fuses. They have the two functions of "load disconnection" and "isolation". Fuses can be added to each pole for "overload and short-circuit protection", making full use of the protection characteristic curve of the fuse to protect cables and equipment in the line, and providing obvious disconnection points during maintenance to ensure the personal safety of workers.

[0003] The fuse-type disconnector includes a base, a cover plate and a handle. The base is provided with a contact assembly. The cover plate is fixed with a fuse core that can be in contact with or separated from the contact assembly. The handle is integrally formed on the cover plate. The cover plate is moved up and down by pulling the handle to drive the fuse core to be in contact with or separated from the contact assembly. Utility Model Content

[0004] To this end, the utility model provides a fuse-type isolating switch, including a switch body, an upper cover and a handle, the switch body including a base, and two first side panels arranged on the base and opposite to each other, the first side panel having a first slide groove arranged vertically, and a second slide groove located on one side of the first slide groove and arranged obliquely; the upper cover is fixed with a fuse core, which has a first slider sliding along the first slide groove; the handle can be rotatably installed on the switch body around a first axis, the first axis can slide along the second slide groove, and the handle is also provided with a matching portion linked to the first slider.

[0005] The first side plate is also provided with a positioning groove which is bent and connected to the first sliding groove, wherein when the handle is in a closed position, the first axis is located in the first sliding groove; when the handle is in an open position, the first axis is located in the positioning groove.

[0006] The matching portion is a first through hole provided on the handle for the first sliding block to be inserted into.

[0007] The first slider includes a cross-shaped slider portion, and a block portion arranged on a side of the slider portion away from the handle, the first through-hole includes a circular hole arranged corresponding to the slider portion, and a slot distributed around the circular hole and arranged corresponding to the block portion, the handle has an initial position, and an assembly position rotated by a certain angle relative to the initial position, wherein in the initial position, the slider portion and the block portion are respectively inserted into the circular hole and the slot; in the assembly position, the block portion can abut against the side wall of the circular hole.

[0008] A guide structure is provided between the upper cover and the switch body, and the guide structure comprises at least one guide groove provided on the switch body and arranged along the vertical direction, and a guide column provided on one side of the upper cover facing the base and slidably connected to the guide groove.

[0009] A locking structure suitable for locking or unlocking the upper cover and the switch body is provided between the upper cover and the switch body.

[0010] The locking structure includes: a stopper, which is arranged on the switch body; a lock member, which includes a lock body rotatably installed in the upper cover installation groove, and a handle operating part connected to the lock body and extending out of the installation groove, and the lock member has a locking position and an unlocking position for locking or unlocking in cooperation with the stopper.

[0011] The lock body has a vertically arranged channel for the movement of the blocking member, and an outlet and a barb portion respectively arranged on both sides of the bottom of the channel, wherein when the lock member is in the unlocking position, the blocking member can be moved out from the outlet; when the lock member is in the locking position, the blocking member cooperates with the barb portion to lock.

[0012] Both sides of the lock body are provided with elastic arms corresponding to the inner wall of the installation groove.

[0013] The technical solution of the utility model has the following advantages:

[0014] 1. The fuse-type disconnector provided by the utility model has a first slide groove arranged vertically on the first side plate of the switch body, and a second slide groove located on one side of the first slide groove and arranged obliquely, the upper cover has a first slider sliding along the first slide groove, the handle can be rotatably installed on the switch body around the first axis, the first axis can slide along the second slide groove, and the handle is also provided with a matching portion linked to the first slider. By operating the handle, the handle can slide along the second slide groove while rotating around the first axis, so that the matching portion can drive the first slider to move up and down along the first slide groove, that is, through the rotation and movement of the handle, the upper cover can move up and down relative to the switch body.

[0015] 2. The fuse-type disconnector provided by the utility model comprises a first slider including a cross-shaped slider portion and a stopper portion provided on a side of the slider portion away from the handle, and a first through-hole including a circular hole provided corresponding to the slider portion and a slot distributed around the circular hole and provided corresponding to the stopper portion. During assembly, the slider portion and the stopper portion are respectively inserted into the circular hole and the slot, and then the handle is rotated at a certain angle so that the stopper portion abuts against the side wall of the circular hole, thereby assembling the handle and the upper cover together. The above-mentioned first slider and first through-hole have the advantage of simple structure.

[0016] 3. The fuse-type isolating switch provided by the utility model has a locking body with a channel arranged vertically and for the movement of the blocking member, and an outlet and a hook portion arranged on both sides of the bottom of the channel, wherein when the locking member is in the unlocking position, the blocking member can be moved out from the outlet; when the locking member is in the locking position, the blocking member cooperates with the hook portion to lock, so that the operator can flexibly select the position of the locking member according to actual needs, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a structural schematic diagram of the fuse-type isolating switch of the utility model (with the upper cover in a closed state);

[0019] Figure 2 It is a structural schematic diagram of a fuse-type disconnect switch (with the upper cover in the open state);

[0020] Figure 3 It is a schematic diagram of the assembly of the handle, the upper cover and the locking part;

[0021] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A;

[0022] Figure 5 It is a schematic diagram of the exploded structure of the handle, upper cover and locking part;

[0023] Figure 6 is a three-dimensional diagram of the switch body;

[0024] Figure 7 for Figure 6 A schematic diagram of the enlarged structure of part B;

[0025] Figure 8 It is a cross-sectional view of a fuse-type disconnect switch;

[0026] Fig. 9 A three-dimensional diagram of a locking member.

[0027] Explanation of the accompanying drawings: 1. switch body; 2. base; 3. first side plate; 4. first slide groove; 5. second slide groove; 6. upper cover; 7. fuse; 8. first slider; 9. handle; 10. first axis; 11. positioning groove; 12. first through hole; 13. slider portion; 14. block portion; 15. round hole; 16. slot; 17. guide groove; 18. guide column; 19. stop member; 20. locking member; 21. mounting groove; 22. locking body; 23. channel; 24. outlet; 25. hook portion; 26. elastic arm; 27. handle operating portion; 30. fuse cover; 31. second axis. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Example

[0033] This embodiment provides a fuse-type isolating switch, such as Figure 1 and Figure 2 As shown, it includes a switch body 1, an upper cover 6 and a handle 9.

[0034] Switch body 1, such as Figure 6 As shown, it includes a base 2 and a fuse cover 30 installed on the base 2. The fuse cover 30 has two first side plates 3 arranged opposite to each other. Figure 1 and Figure 2 As shown, the first side panel 3 has a first slide groove 4 arranged vertically, and a second slide groove 5 located on one side of the first slide groove 4 and arranged obliquely. The first side panel 3 is also provided with a positioning groove 11 which is bent and connected to the first slide groove 4, wherein when the handle 9 is in the closed position, the first axis 10 is located in the first slide groove 4; when the handle 9 is in the open position, the first axis 10 is located in the positioning groove 11. In this embodiment, the positioning groove 11 can be an arc-shaped groove.

[0035] Upper cover 6, such as Figure 2 As shown, a fusible core 7 is fixed thereon, and a first slider 8 is provided which slides along the first slide groove 4. In this embodiment, as shown Figure 3 and Figure 4 As shown, the first slider 8 includes a cross-shaped slider portion 13 and a stopper portion 14 provided on a side of the slider portion 13 away from the handle 9. A guide structure is provided between the upper cover 6 and the switch body 1. Figure 3 and Figure 6 As shown, the guide structure includes two guide grooves 17 provided on the switch body 1 and arranged along the vertical direction, and a guide column 18 provided on the side of the upper cover 6 facing the base 2 and slidably connected to the guide groove 17, and a stopper 19 arranged along the horizontal direction is provided on the inner wall of the guide groove 17.

[0036] The handle 9 is rotatably mounted on the switch body 1 around a first axis 10. The first axis 10 can slide along the second slide groove 5. The handle 9 is also provided with a matching portion that is linked with the first slider 8. The matching portion is a first through hole 12 provided on the handle 9 for the first slider 8 to be inserted. Figure 3 , Figure 4 and Figure 5 As shown, the first through hole 12 includes a circular hole 15 corresponding to the slider portion 13, and a slot 16 distributed around the circular hole 15 and corresponding to the block portion 14. The handle 9 has an initial position and an assembly position rotated by a certain angle relative to the initial position, wherein, in the initial position, the slider portion 13 and the block portion 14 are respectively inserted into the circular hole 15 and the slot 16; in the assembly position, the block portion 14 can abut against the side wall of the circular hole 15.

[0037] The upper cover 6 and the switch body 1 are provided with a locking structure suitable for locking or unlocking the two. Figure 7 , Figure 8 and Fig. 9 As shown, the locking structure includes: a stopper 19, which is arranged on the switch body 1; a lock member 20, which includes a lock body 22 rotatably installed in the mounting groove 21 of the upper cover 6 through a second shaft 31, and a handle operating part 27 connected to the lock body 22 and extending out of the mounting groove 21, and the lock member 20 has a locking position and an unlocking position for locking or unlocking in cooperation with the stopper 19. In this embodiment, the lock body 22 has a channel 23 arranged vertically and for the stopper 19 to move, and an outlet 24 and a barb 25 respectively arranged on both sides of the bottom of the channel 23, wherein when the lock member 20 is in the unlocking position, the stopper 19 can be moved out from the outlet 24; when the lock member 20 is in the locking position, the stopper 19 cooperates with the barb 25 to lock, and both sides of the lock body 22 have elastic arms 26 corresponding to the inner wall of the mounting groove 21.

[0038] The working principle of the fuse type isolating switch of the utility model is as follows:

[0039] When the upper cover 6 is in the closed state, Figure 1 As shown, the first slider 8 of the upper cover 6 is located at the bottom of the first slide groove 4, the first axis 10 of the handle 9 is located in the middle of the second slide groove 5, and in the height direction, the first axis 10 is located above the first slider 8;

[0040] When the fuse is separated from the contact assembly in the switch body 1 when needed, the handle 9 is turned clockwise, and the handle 9 drives the first slider 8 to move upward. Before the first slider 8 moves to the same height as the first shaft 10, the first shaft 10 slides obliquely downward along the second slide groove 5; after the first slider 8 moves to the same height as the first shaft 10, the first slider 8 continues to move upward, and the first shaft 10 also slides obliquely upward along the second slide groove 5 until the first slider 8 moves to the same height as the first shaft 10. Figure 2 In the position shown, the first sliding block 8 is located at the top of the first sliding groove 4 , and the first shaft 10 is located in the positioning groove 11 .

[0041] The fuse-type isolating switch provided by the utility model operates the handle 9. While the handle 9 rotates around the first axis 10, it can also slide along the second slide groove 5, so that the matching part can drive the first slider 8 to move up and down along the first slide groove 4, that is, through the rotation and movement of the handle 9, the upper cover 6 can move up and down relative to the switch body.

[0042] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A fuse-type disconnect switch, characterized in that: include: The switch body (1) comprises a base (2) and two first side plates (3) arranged on the base (2) and arranged opposite to each other, wherein the first side plates (3) have a first slide groove (4) arranged vertically, and a second slide groove (5) located on one side of the first slide groove (4) and arranged obliquely; An upper cover (6) is fixed with a fusible core (7) and has a first sliding block (8) that slides along the first sliding groove (4); The handle (9) is rotatably mounted on the switch body (1) around a first axis (10), the first axis (10) can slide along the second slide groove (5), and the handle (9) is also provided with a matching portion that is linked to the first slide block (8).

2. The fuse-type disconnect switch according to claim 1, characterized in that: The first side plate (3) is also provided with a positioning groove (11) which is bent and connected to the first slide groove (4), wherein when the handle (9) is in a closed position, the first shaft (10) is located in the first slide groove (4); when the handle (9) is in an open position, the first shaft (10) is located in the positioning groove (11).

3. The fuse-type disconnector according to claim 1 or 2, characterized in that: The matching portion is a first through hole (12) provided on the handle (9) and for the first sliding block (8) to be inserted into.

4. The fuse-type disconnector according to claim 3, characterized in that: The first slider (8) comprises a cross-shaped slider portion (13) and a stopper portion (14) arranged on a side of the slider portion (13) away from the handle (9); the first through hole (12) comprises a circular hole (15) arranged corresponding to the slider portion (13) and a slot (16) distributed around the circular hole (15) and arranged corresponding to the stopper portion (14); the handle (9) has an initial position and an assembly position rotated at a certain angle relative to the initial position, wherein in the initial position, the slider portion (13) and the stopper portion (14) are respectively inserted into the circular hole (15) and the slot (16); in the assembly position, the stopper portion (14) can abut against the side wall of the circular hole (15).

5. The fuse-type disconnector according to claim 1, characterized in that: A guide structure is provided between the upper cover (6) and the switch body (1), the guide structure comprising at least one guide groove (17) provided on the switch body (1) and arranged in a vertical direction, and a guide column (18) provided on a side of the upper cover (6) facing the base (2) and slidably connected to the guide groove (17).

6. The fuse-type disconnector according to claim 1, characterized in that: A locking structure suitable for locking or unlocking the upper cover (6) and the switch body (1) is provided between the upper cover (6) and the switch body (1).

7. The fuse-type disconnector according to claim 6, characterized in that: The locking structure comprises: A stopper (19) is arranged on the switch body (1); The locking member (20) comprises a locking body (22) rotatably mounted in the mounting groove (21) of the upper cover (6), and a handle operating portion (27) connected to the locking body (22) and extending out of the mounting groove (21), wherein the locking member (20) has a locking position and an unlocking position for cooperating with the stop member (19) to lock or unlock.

8. The fuse-type disconnector according to claim 7, characterized in that: The lock body (22) comprises a channel (23) arranged vertically and for the movement of the stopper (19), and an outlet (24) and a barb (25) respectively arranged on both sides of the bottom of the channel (23), wherein when the lock member (20) is in the unlocking position, the stopper (19) can be moved out from the outlet (24); when the lock member (20) is in the locking position, the stopper (19) cooperates with the barb (25) to lock.

9. The fuse-type disconnector according to claim 7 or 8, characterized in that: Both sides of the lock body (22) are provided with elastic arms (26) corresponding to the inner wall of the installation groove (21).

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