A fuse core locking structure and a fuse-type disconnector

Abstract

The utility model provides a kind of fusing core locking structure and fuse-type isolator, fusing core locking structure includes: fusing core, detachably installed on handle, and fusing core is equipped with mounting foot;Button piece, it is set on handle, it has elastic arm, and boss on elastic arm, elastic arm is deformed by external force, and it restores deformation after external force is removed, button piece has locking state and unlocking state, wherein, when in locking state, boss is resisted with mounting foot;When in unlocking state, elastic arm drives boss and separates from mounting foot under the action of external force, so as to omit multiple spring, slider and other parts in traditional structure, significantly reduce the number of parts, with the advantages of simple structure, low production cost.

Description

Technical Field

[0001] This utility model relates to the field of power distribution technology, specifically to a fuse-locking structure and a fuse-type disconnect switch. Background Technology

[0002] The core function of a fuse-type disconnector is to ensure reliable connection and isolation of the fuse element under normal operation and fault-breaking conditions. In existing technology, the locking structure for the fuse element within the handle includes a spring, a slider, and a pressure plate. The slider is slidably mounted within the handle via the pressure plate. It has a locking position for pressing and fixing the mounting foot at one end of the fuse element, and an unlocking position for separating from the mounting foot. This locking structure suffers from the problems of numerous components and cumbersome assembly processes. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defects of the existing fuse locking structure, which has a large number of parts and complicated assembly, so as to provide a fuse locking structure and fuse-type disconnect switch that is simple in structure and quick and convenient to assemble.

[0004] Therefore, this utility model provides a fusible core locking structure, including a fusible core and a button. The fusible core is detachably mounted on a handle and has a mounting foot. The button is disposed on the handle and has an elastic arm and a boss on the elastic arm. The elastic arm deforms under external force and returns to its original shape after the external force is removed. The button has a locked state and an unlocked state. In the locked state, the boss abuts against the mounting foot. In the unlocked state, the elastic arm drives the boss to separate from the mounting foot under the action of external force.

[0005] The button component includes a button body and an elastic arm connected to the button body. The button component is assembled with the handle via an elastic hook structure. The elastic hook structure includes elastic hooks on both sides of the button body and hook blocks on the inner wall of the handle that cooperate with the elastic hooks.

[0006] The handle is provided with a positioning rib, and the button body is formed with a positioning groove that matches the positioning rib.

[0007] The elastic arm is Y-shaped, and includes a pressing arm and two connecting arms connecting the pressing arm and the button body. The protrusion is provided at the connection between the pressing arm and the connecting arms.

[0008] The mounting foot is T-shaped. The handle includes two first partitions arranged opposite each other and a second partition connecting the two first partitions. The two first partitions and the second partition form a cavity for mounting the mounting foot and the elastic arm. The bottom of the second partition is the positioning rib. When the button is in the locked state, the mounting foot is installed between the second partition and the boss.

[0009] The inner wall of the first partition is formed with elastic protrusions, and when the molten core is in the assembled state, the elastic protrusions abut against the edge of the mounting foot.

[0010] The top of the first partition is formed with a stop block, and when the molten core is in the assembled state, the stop block is inserted into the groove of the T-shaped mounting foot.

[0011] The end of the elastic arm away from the button body extends out of the cavity.

[0012] This utility model also provides a fuse-type disconnect switch, including the fuse core locking structure as described above.

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

[0014] 1. The fusible core locking structure provided by this utility model uses a button with an elastic arm. The deformation of the elastic arm provides a natural restoring force, and pressing it can lock and unlock the fusible core. This eliminates the need for multiple springs, sliders and other parts in traditional structures, significantly reducing the number of parts and having the advantages of simple structure and low production cost.

[0015] 2. The fusion locking structure provided by this utility model allows for one-click snap-fit ​​assembly of the elastic hook and the handle hook block, eliminating the need for screws and simplifying the assembly process.

[0016] 3. The fusible core locking structure provided by this utility model has a positioning rib embedded in the groove, which can prevent the button from shifting laterally and ensure that the boss is always precisely aligned with the fusible core mounting foot.

[0017] 4. The core-locking structure provided by this utility model has a Y-shaped double-arm structure that disperses stress and avoids fatigue fracture of a single arm.

[0018] 5. The fused core locking structure provided by this utility model has an elastic protrusion that continuously presses against the edge of the mounting foot, forming a bidirectional clamping force with the boss, further restricting the position of the fused core. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is an assembly perspective view of the fusible link, button component, and handle of this utility model;

[0021] Figure 2 This is an exploded structural diagram of the fused core, button assembly, and handle.

[0022] Figure 3 This is a 3D view of the button component;

[0023] Figure 4 A 3D view of the handle;

[0024] Figure 5 for Figure 1 The first cross-sectional view;

[0025] Figure 6 for Figure 1 The second cross-sectional view.

[0026] Explanation of reference numerals in the attached drawings: 1. Fusible core; 2. Handle; 3. Mounting foot; 4. Button component; 5. Elastic arm; 6. Boss; 7. Button body; 8. Elastic hook; 9. Hook block; 10. Positioning rib; 11. Positioning groove; 12. Pressing arm; 13. Connecting arm; 14. First partition; 15. Second partition; 16. Chamber; 17. Elastic protrusion; 18. Stop block. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] Example

[0032] This embodiment provides a fuse-type disconnecting switch, including a fuse locking structure, such as... Figure 1 and Figure 2 As shown, the fusible locking structure includes a fusible core 1, a handle 2, and a button 4.

[0033] The fusible core 1 is detachably mounted on the handle 2, and the fusible core 1 is provided with a T-shaped mounting foot 3.

[0034] Button 4 is disposed on the handle 2, such as Figure 3 As shown, it includes a button body 7 and an elastic arm 5 connected to the button body 7. The button component 4 is assembled to the handle 2 via an elastic hook structure, as shown. Figure 6 As shown, the elastic hook structure includes elastic hooks 8 disposed on both sides of the button body 7, and hook blocks 9 disposed on the inner wall of the handle 2 and cooperating with the elastic hooks 8, as shown. Figure 5As shown, the handle 2 is provided with a positioning rib 10, and the button body 7 is formed with a positioning groove 11 adapted to the positioning rib 10. The elastic arm 5 is provided with a boss 6. The elastic arm 5 deforms under external force and returns to its original shape after the external force is removed. The button 4 has a locked state and an unlocked state. In the locked state, the boss 6 abuts against the mounting foot 3; in the unlocked state, the elastic arm 5, under the action of external force, drives the boss 6 to separate from the mounting foot 3. In this embodiment, as... Figure 3 As shown, the elastic arm 5 is Y-shaped. The Y-shaped elastic arm 5 includes a pressing arm 12 and two connecting arms 13 connecting the pressing arm 12 and the button body 7. The pressing arm 12 is arc-shaped, and the connecting arms 13 are inverted L-shaped. The protrusion 6 is provided at the connection between the pressing arm 12 and the connecting arms 13.

[0035] Handle 2, such as Figure 4 As shown, it includes two first partitions 14 arranged opposite each other, and a second partition 15 connecting the two first partitions 14. The two first partitions 14 and the second partition 15 enclose a cavity 16 for mounting the mounting foot 3 and the elastic arm 5. The end of the elastic arm 5 away from the button body 7 extends out of the cavity 16, thus facilitating hand pressing. The bottom of the second partition 15 is the positioning rib 10. When the button 4 is in the locked state, the mounting foot 3 is mounted between the second partition 15 and the boss 6. An elastic protrusion 17 is formed on the inner wall of the first partition 14, and a stop 18 is formed on the top of the first partition 14. When the fused core 1 is in the assembled state, the stop 18 is inserted into the groove of the T-shaped mounting foot 3. The elastic protrusion 17 abuts against the edge of the mounting foot 3, and the T-shaped mounting foot 3 is located between the boss 6 and the second partition 15.

[0036] The fusible core locking structure provided by this utility model uses a button 4 with an elastic arm 5. The elastic arm 5 provides a natural restoring force through deformation. Pressing it can lock and unlock the fusible core 1, eliminating the need for multiple springs, sliders and other parts in the traditional structure, significantly reducing the number of parts, and has the advantages of simple structure and low production cost.

[0037] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A fused core locking structure, characterized in that, include: A fusible core (1) is detachably mounted on a handle (2), and the fusible core (1) is provided with mounting feet (3); A button (4) is disposed on the handle (2), having an elastic arm (5) and a boss (6) disposed on the elastic arm (5). The elastic arm (5) deforms under external force and recovers its deformation after the external force is removed. The button (4) has a locked state and an unlocked state. In the locked state, the boss (6) abuts against the mounting foot (3). In the unlocked state, the elastic arm (5) drives the boss (6) to separate from the mounting foot (3) under the action of external force.

2. The core locking structure according to claim 1, characterized in that, The button component (4) includes a button body (7) and an elastic arm (5) connected to the button body (7). The button component (4) is assembled with the handle (2) through an elastic hook structure. The elastic hook structure includes elastic hooks (8) provided on both sides of the button body (7) and hook blocks (9) provided on the inner wall of the handle (2) and cooperating with the elastic hooks (8).

3. The core locking structure according to claim 2, characterized in that, The handle (2) is provided with a positioning rib (10), and the button body (7) is formed with a positioning groove (11) that matches the positioning rib (10).

4. The core locking structure according to claim 2, characterized in that, The elastic arm (5) is Y-shaped. The Y-shaped elastic arm (5) includes a pressing arm (12) and two connecting arms (13) connecting the pressing arm (12) and the button body (7). The boss (6) is provided at the connection between the pressing arm (12) and the connecting arm (13).

5. The core locking structure according to claim 3, characterized in that, The mounting foot (3) is T-shaped. The handle (2) includes two first partitions (14) arranged opposite to each other, and a second partition (15) connecting the two first partitions (14). The two first partitions (14) and the second partition (15) enclose a cavity (16) for mounting the mounting foot (3) and the elastic arm (5). The bottom of the second partition (15) is the positioning rib (10). When the button (4) is in the locked state, the mounting foot (3) is installed between the second partition (15) and the boss (6).

6. The core locking structure according to claim 5, characterized in that, The inner wall of the first partition (14) is formed with an elastic protrusion (17), and when the molten core (1) is in the assembled state, the elastic protrusion (17) abuts against the edge of the mounting foot (3).

7. The core locking structure according to claim 5, characterized in that, The top of the first partition (14) is formed with a stop (18), and when the molten core (1) is in the assembled state, the stop (18) is inserted into the groove of the T-shaped mounting foot (3).

8. The core locking structure according to claim 5, characterized in that, The end of the elastic arm (5) away from the button body (7) extends out of the chamber (16).

9. A fuse-type disconnect switch, characterized in that, Includes the fused core locking structure as described in any one of claims 1-8.

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