Fuse type disconnecting switch

Abstract

The invention relates to the technical field of disconnecting switches, and discloses a fuse type disconnecting switch which comprises a mounting cover, an operating handle is mounted at the top end of the mounting cover, a linkage rod is connected to the inner side of the operating handle, and a first linkage handle and a second linkage handle are connected to the two sides of the linkage rod respectively. By arranging the linkage opening and closing structure, the operation handle drives the first linkage handle and the second linkage handle at the top end of the mounting cover to conduct linkage overturning through the linkage rod, and inner mounting bases in the first linkage handle, the operation handle and the second linkage handle are made to overturn at the top of the mounting cover; after fusible cores are sequentially installed in the multiple sets of inner installation bases, the operation handle drives the first linkage handle and the second linkage handle to turn over at the top of the installation cover, the operation handle, the first linkage handle and the second linkage handle drive the inner installation bases and the installation cover to be clamped and fixed, and therefore the linkage opening and closing function is achieved.

Description

Technical Field

[0001] This invention relates to the field of disconnecting switch technology, specifically a fuse-type disconnecting switch. Background Technology

[0002] Fuse-type disconnect switches are electrical devices used for short-circuit and overload protection. They are fuse combination electrical appliances that combine traditional fuses, isolators, and switches into one unit. They can not only operate under load, but also have obvious current limiting characteristics and good selectivity, which can achieve optimal protection for the line. They can be widely used in low-voltage power distribution systems.

[0003] Commonly used strip-shaped fuse-type disconnect switches are typically 100mm wide. When installed in small distribution boxes, these switches occupy a significant amount of internal space. Furthermore, installing the fuse element individually requires opening each switch one by one, which can easily lead to incorrect or missing installations. Therefore, we propose an improved fuse-type disconnect switch to address these issues. Summary of the Invention

[0004] The purpose of this invention is to provide a fuse-type disconnect switch to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fuse-type disconnect switch, including a mounting cover, an operating handle mounted on the top of the mounting cover, a connecting rod connected to the inner side of the operating handle, a first connecting handle and a second connecting handle respectively connected to both sides of the connecting rod, and an inner mounting base installed inside the second connecting handle.

[0006] Preferably, the first linkage handle, the operating handle, and the second linkage handle are all equipped with internal mounting bases, and the operating handle is connected to the first linkage handle and the second linkage handle via a linkage rod.

[0007] Preferably, the operating handle drives the inner mounting base to flip on the top of the mounting cover, and the operating handle drives the first and second connecting handles to flip on the top of the mounting cover via the connecting rod.

[0008] Preferably, the bottom of the mounting cover is connected to a mounting base, the bottom of the mounting cover has a connecting groove, a snap-fit ​​bolt is inserted into the connecting groove, the bottom of the mounting base has a mounting hole groove, a fixing nut is inserted into the mounting hole groove, a fixing screw is sleeved on the outside of the fixing nut, heat dissipation grooves are provided at the front and rear of the mounting cover, and a contact is provided at the rear end of the mounting base.

[0009] Preferably, the bottom of the mounting cover is snapped into the top of the mounting base, and the snapping bolt is inserted into the bottom connecting slot of the mounting cover to connect with the mounting base.

[0010] Preferably, the fixing screw is inserted into the mounting hole groove at the bottom of the mounting base from inside the mounting base, and the fixing nut is fitted on the outside of the fixing screw and contacts the bottom of the mounting base. The mounting holes groove are equally spaced at the bottom of the mounting base.

[0011] Compared with the prior art, the beneficial effects of the present invention are: this fuse-type disconnecting switch not only realizes the interlocking opening and closing function, but also realizes the installation and fixing function;

[0012] (1) By setting a linkage opening and closing structure, the present invention is beneficial in that: when in use, by moving the operating handle at the top of the mounting cover, the operating handle drives the first linkage handle and the second linkage handle at the top of the mounting cover to rotate in a linkage manner through the linkage rod, so that the inner mounting seats inside the first linkage handle, the operating handle and the second linkage handle rotate on the top of the mounting cover. After the fuse is installed into the interior of multiple sets of inner mounting seats in sequence, the operating handle drives the first linkage handle and the second linkage handle to rotate on the top of the mounting cover, so that the operating handle, the first linkage handle and the second linkage handle drive the inner mounting seats inside to engage and fix with the mounting cover, thereby realizing the linkage opening and closing function;

[0013] (2) By setting up an installation and fixing structure, the present invention is beneficial in that: when in use, the mounting base is placed inside the distribution box, multiple sets of fixing screws are passed through the mounting hole groove at the bottom of the mounting base and connected to the mounting frame hole of the distribution box, the fixing nut is sleeved on the outside of the fixing screw at the rear end of the mounting frame hole of the distribution box, the mounting base is fixed inside the distribution box, and then the mounting cover is snapped onto the top of the mounting base, the snap bolt is inserted into the connecting groove hole at the bottom of the mounting cover and rotated to fix the mounting cover to the top of the mounting base, thereby realizing the installation and fixing function. Attached Figure Description

[0014] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a side view of the structure of the present invention;

[0016] Figure 3 This is a top view of the mounting cover structure of the present invention;

[0017] Figure 4 This is a bottom view of the mounting base structure of the present invention.

[0018] In the diagram: 1. First linkage handle; 2. Operating handle; 3. Linkage rod; 4. Second linkage handle;

[0019] 5. Mounting cover; 6. Inner mounting base; 7. Mounting base; 8. Heat dissipation groove; 9. Contact; 10. Mounting hole groove; 11. Fixing nut; 12. Fixing screw; 13. Connecting slot; 14. Snap bolt. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1-4 A fuse-type disconnect switch includes a mounting cover 5, an operating handle 2 is mounted on the top of the mounting cover 5, a connecting rod 3 is connected to the inner side of the operating handle 2, a first connecting handle 1 and a second connecting handle 4 are respectively connected to the two sides of the connecting rod 3, and an inner mounting seat 6 is installed inside the second connecting handle 4.

[0022] The first linkage handle 1, the operating handle 2 and the second linkage handle 4 are all equipped with an inner mounting base 6. The operating handle 2 is connected to the first linkage handle 1 and the second linkage handle 4 through the linkage rod 3. The operating handle 2 drives the inner mounting base 6 to flip on the top of the mounting cover 5. The operating handle 2 drives the first linkage handle 1 and the second linkage handle 4 to flip on the top of the mounting cover 5 through the linkage rod 3.

[0023] Specifically, such as Figure 1 and Figure 2 As shown, by setting up a linkage opening and closing structure, when in use, by moving the operating handle 2 at the top of the mounting cover 5, the operating handle 2 drives the first linkage handle 1 and the second linkage handle 4 at the top of the mounting cover 5 to rotate in a linkage manner through the linkage rod 3. This causes the inner mounting base 6 inside the first linkage handle 1, the operating handle 2, and the second linkage handle 4 to rotate at the top of the mounting cover 5. After the fuse is installed into the interior of multiple sets of inner mounting bases 6 in sequence, the operating handle 2 drives the first linkage handle 1 and the second linkage handle 4 to rotate at the top of the mounting cover 5. This causes the operating handle 2, the first linkage handle 1, and the second linkage handle 4 to engage and fix the inner mounting base 6 with the mounting cover 5, thereby realizing the linkage opening and closing function.

[0024] Example 2: The bottom of the mounting cover 5 is connected to the mounting base 7. The bottom of the mounting cover 5 is provided with a connecting groove 13. A snap-fit ​​bolt 14 is inserted into the connecting groove 13. The bottom of the mounting base 7 is provided with a mounting hole groove 10. A fixing nut 11 is inserted into the mounting hole groove 10. A fixing screw 12 is sleeved on the outside of the fixing nut 11. Heat dissipation grooves 8 are provided at the front and rear of the mounting cover 5. A contact 9 is provided at the rear end of the mounting base 7.

[0025] The bottom of the mounting cover 5 is snapped into the top of the mounting base 7. The snapping bolt 14 is inserted into the bottom connecting slot 13 of the mounting cover 5 and connected to the mounting base 7. The fixing screw 12 is inserted into the mounting hole slot 10 at the bottom of the mounting base 7 from inside the mounting base 7. The fixing nut 11 is fitted on the outside of the fixing screw 12 and contacts the bottom of the mounting base 7. The mounting holes slot 10 are equally spaced at the bottom of the mounting base 7.

[0026] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, by setting up an installation and fixing structure, when in use, the mounting base 7 is placed inside the distribution box, and multiple sets of fixing screws 12 are passed through the mounting hole groove 10 at the bottom of the mounting base 7 and connected to the mounting bracket hole of the distribution box. The fixing nut 11 is sleeved on the outside of the fixing screw 12 at the rear end of the mounting bracket hole of the distribution box to fix the mounting base 7 inside the distribution box. Then, the mounting cover 5 is snapped onto the top of the mounting base 7, and the snap bolt 14 is inserted into the connecting slot hole 13 at the bottom of the mounting cover 5 and rotated to fix the mounting cover 5 to the top of the mounting base 7, thereby realizing the installation and fixing function.

[0027] Working principle: In this invention, the mounting base 7 is placed inside the distribution box. Multiple sets of fixing screws 12 pass through the mounting hole groove 10 at the bottom of the mounting base 7 and connect to the mounting bracket hole of the distribution box. The fixing nut 11 is fitted onto the outside of the fixing screw 12 at the rear end of the mounting bracket hole of the distribution box, fixing the mounting base 7 inside the distribution box. Then, the mounting cover 5 is snapped onto the top of the mounting base 7. The snap bolt 14 is inserted into the connecting slot 13 at the bottom of the mounting cover 5 and rotated to fix the mounting cover 5 to the top of the mounting base 7. Then, by turning the operating handle 2 at the top of the mounting cover 5, the operating handle 2 drives the first connecting handle 1 and the second connecting handle 4 at the top of the mounting cover 5 to rotate through the connecting rod 3, causing the first connecting handle 1 to rotate. The inner mounting base 6 inside the operating handle 2 and the second linkage handle 4 is flipped on top of the mounting cover 5. After the fuse is installed into the inner mounting base 6 in sequence, the operating handle 2 drives the first linkage handle 1 and the second linkage handle 4 to flip on top of the mounting cover 5. The operating handle 2, the first linkage handle 1 and the second linkage handle 4 drive the inner mounting base 6 to engage and fix with the mounting cover 5. An observation window is provided on the top of the inner mounting base 6 to see through the fuse inside the inner mounting base 6. Then the protective cover is installed on the outside of the rear contact 9 of the mounting base 7. At the same time, the operating handle 2 on the top of the mounting cover 5 can be inverted. The width of the mounting cover 5 and the mounting base 7 is 75mm, which reduces the overall size of the switch and increases the internal space of the distribution box.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fuse-type disconnect switch, comprising a mounting cover (5), characterized in that: An operating handle (2) is installed on the top of the mounting cover (5). A linkage rod (3) is connected to the inside of the operating handle (2). A first linkage handle (1) and a second linkage handle (4) are connected to the two sides of the linkage rod (3). An inner mounting seat (6) is installed inside the second linkage handle (4).

2. The fuse-type disconnect switch according to claim 1, characterized in that: The first linkage handle (1), the operating handle (2) and the second linkage handle (4) are all equipped with an inner mounting base (6). The operating handle (2) is connected to the first linkage handle (1) and the second linkage handle (4) through the linkage rod (3).

3. A fuse-type disconnect switch according to claim 1, characterized in that: The operating handle (2) drives the inner mounting base (6) to flip on the top of the mounting cover (5). The operating handle (2) drives the first connecting handle (1) and the second connecting handle (4) to flip on the top of the mounting cover (5) through the connecting rod (3).

4. A fuse-type disconnect switch according to claim 1, characterized in that: The bottom of the mounting cover (5) is connected to the mounting base (7). The bottom of the mounting cover (5) is provided with a connecting slot (13). A snap-fit ​​bolt (14) is inserted into the connecting slot (13). The bottom of the mounting base (7) is provided with a mounting hole slot (10). A fixing nut (11) is inserted into the mounting hole slot (10). A fixing screw (12) is sleeved on the outside of the fixing nut (11). Heat dissipation grooves (8) are provided at the front and rear of the mounting cover (5). A contact (9) is provided at the rear end of the mounting base (7).

5. A fuse-type disconnect switch according to claim 4, characterized in that: The bottom of the mounting cover (5) is snapped into the top of the mounting base (7), and the snapping bolt (14) is inserted into the bottom connecting slot (13) of the mounting cover (5) to connect with the mounting base (7).

6. A fuse-type disconnector according to claim 4, characterized in that: The fixing screw (12) is inserted into the mounting hole (10) at the bottom of the mounting base (7) from inside the mounting base (7). The fixing nut (11) is fitted on the outside of the fixing screw (12) and contacts the bottom of the mounting base (7). The mounting holes (10) are equally spaced at the bottom of the mounting base (7).

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