Isolating switch fuse group

Abstract

The utility model discloses an isolating switch fuse group, which belongs to the technical field of low-voltage electric appliances and comprises an isolating switch main body, a fixing assembly is arranged on the side surface of the isolating switch main body, a protective shell is arranged above the isolating switch main body, and a dustproof assembly is arranged on the side surface of the protective shell. Under the pulling action force of a spring II at the bottom of a side block, an inserting rod is tightly inserted into a connecting plate, so that a dust filtering plate can be firmly installed and positioned, the dust filtering plate can intercept and filter dust, the situation that the fuse is interfered by the dust and inconvenient to clean is avoided, the inserting rod is pulled downwards to be separated from the connecting plate, and then the dust filtering plate can be taken down to clean the dust; according to the utility model, through the arrangement of the fixing assembly, under the elastic acting force of three pairs of sleeve blocks of the spring in the side seat, the fixing rod and the fixing groove are tightly inserted, so that the protective shell and the disconnecting switch main body are firmly connected and assembled, and the supporting block plays an auxiliary supporting role on the protective shell, so that the structural stability of the device is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of low-voltage electrical appliances, and in particular relates to an isolating switch fuse group. Background Art

[0002] The isolating switch fuse group is a multi-pole manually operated switch, which is widely used in low-voltage transformer and distribution systems. It can connect, carry and disconnect current under specified circuit conditions. It can be used to manually connect and disconnect circuits infrequently. Its short-circuit breaking capacity is determined by the breaking capacity of the fuse.

[0003] Chinese patent application No. 202321561621.8 discloses a disconnector fuse group, including a switch body, a protective shell and a locking frame, the protective shell is provided with threaded holes on the left and right sides, a plurality of partitions are fixedly installed in the protective shell, and the partitions separate adjacent fuses, a positioning column is fixedly installed in the protective shell on one side of the partition, the switch body is fixedly connected with locking shaft columns on the left and right sides, the locking frame is symmetrically fixedly connected with a locking shaft member on the inner side, the locking frame is symmetrically provided with a locking opening at the bottom, the protective shell is threadedly connected with a locking frame that is matched with the locking shaft member and installed with a threaded hole, and the locking frame is clamped with the locking shaft column through the locking opening. By providing a locking opening under the locking frame, the curvature radius of the front part of the locking opening is greater than the curvature radius of the rear part of the locking opening, so as to realize the locking function, and the structural setting is simple and practical, and the cost is also low.

[0004] In the above-mentioned public patent, the protective shell is connected and assembled with the switch body by rotating the cover of the locking frame. The locking frame needs to cooperate with gravity to position the protective cover. The installation of the protective shell is not firm enough and the protection effect is poor. The protective shell is ventilated and dissipated through the heat dissipation port, but it also makes it impossible to block dust. Dust will accumulate on the fuse and cause interference. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides an isolating switch fuse group, which has the characteristics of stable structure and dustproof.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a disconnector fuse group, comprising a disconnector main body, both sides of the disconnector main body are connected with mounting and fixing ears, a positioning hole is provided on the top of the disconnector main body, a fuse is arranged on the top of the disconnector main body, a fixing component is provided on the side of the disconnector main body, a protective shell is installed above the disconnector main body, a heat dissipation port is provided inside the protective shell, and a dustproof component is arranged on the side of the protective shell.

[0007] Preferably, the dustproof component includes a protective component, an insert rod, a side block, a second spring, a connecting plate and a dust filter plate, wherein a side block is provided on the side of the protective shell, an insert rod is embedded in the inside of the side block, a second spring is connected between the rod cap of the insert rod and the side block, a dust filter plate is embedded in the inside of the heat dissipation port, a connecting plate is connected to the side end of the dust filter plate, and a protective component is provided on the top of the protective shell.

[0008] Preferably, the dust filter plate and the heat dissipation port are in a split structure, both the dust filter plate and the heat dissipation port are in a cross-shaped structure, and the side of the dust filter plate fits tightly with the inner wall of the heat dissipation port.

[0009] Preferably, the protection component includes a protection plate, a spring 1, a fixed cylinder and a sliding rod, wherein two fixed cylinders are provided on the top of the protection shell, a spring 1 is embedded inside the fixed cylinder, the top of the spring 1 is connected to the sliding rod, and the top of the sliding rod is connected to the protection plate.

[0010] Preferably, the fixing assembly includes a sleeve block, a spring three, a side seat, a fixing rod and a fixing groove, wherein fixing grooves are provided on both sides of the isolating switch body, side seats are installed on both sides of the protective shell, a fixing rod is embedded inside the side seat, a sleeve block is sleeved on the surface of the fixing rod, and a spring three is arranged on the outside of the sleeve block.

[0011] Preferably, support blocks are provided on both sides of the isolating switch body, the bottom end of the protective shell fits with the surface of the support block, and a plug-in structure is formed between the fixing rod and the fixing groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model sets a dustproof component. Under the pulling force of the second spring at the bottom of the side block, the plug rod and the connecting plate are tightly plugged together to make the dust filter plate firmly installed and positioned. The dust filter plate inside the heat dissipation port can intercept and filter the dust to prevent the dust from interfering with the fuse and making it inconvenient to clean. The plug rod is pulled down to separate it from the connecting plate, and then the dust filter plate can be removed for cleaning.

[0014] 2. The utility model sets a fixing assembly. Under the elastic force of the three pairs of sets of spring blocks inside the side seat, the fixing rod and the fixing groove are tightly inserted to make the protective shell and the isolating switch body firmly connected and assembled. The supporting block plays an auxiliary supporting role on the protective shell, which can make the structural stability of the device higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 This is the front view of the dustproof component of the utility model;

[0017] Figure 3 This is the front view of the protection component of the utility model;

[0018] Figure 4 This is the front view of the fixing component of the utility model.

[0019] In the figure: 1. Protective shell; 2. Dustproof component; 21. Protective component; 211. Protective plate; 212. Spring 1; 213. Fixed cylinder; 214. Sliding rod; 22. Insert rod; 23. Side block; 24. Spring 2; 25. Connecting plate; 26. Dust filter plate; 3. Fixed component; 31. Bushing block; 32. Spring 3; 33. Side seat; 34. Fixed rod; 35. Support block; 36. Fixed groove; 4. Disconnector body; 5. Fuse; 6. Mounting ear; 7. Heat dissipation port; 8. Positioning hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] Example 1

[0022] See also Figure 1-4 The utility model provides the following technical solutions: a disconnector fuse group, including a disconnector body 4, both sides of the disconnector body 4 are connected with mounting and fixing ears 6, a positioning hole 8 is provided on the top of the disconnector body 4, a fuse 5 is provided on the top of the disconnector body 4, a fixing component 3 is provided on the side of the disconnector body 4, a protective shell 1 is installed above the disconnector body 4, a heat dissipation port 7 is provided inside the protective shell 1, and a dustproof component 2 is provided on the side of the protective shell 1.

[0023] Specifically, the dustproof component 2 includes a protective component 21, an insert rod 22, a side block 23, a spring 24, a connecting plate 25 and a dust filter plate 26. The side of the protective shell 1 is provided with a side block 23, the insert rod 22 is embedded in the side block 23, and a spring 24 is connected between the rod cap of the insert rod 22 and the side block 23. The dust filter plate 26 is embedded in the heat dissipation port 7, and the side end of the dust filter plate 26 is connected to the connecting plate 25. The top of the protective shell 1 is provided with a protective component 21.

[0024] By adopting the above technical solution, under the pulling force of the spring 24 at the bottom of the side block 23, the rod 22 and the connecting plate 25 are tightly plugged together so that the dust filter plate 26 can be installed and positioned firmly. The dust filter plate 26 inside the heat dissipation port 7 can intercept and filter the dust to prevent the dust from interfering with the fuse 5 and making it inconvenient to clean.

[0025] Specifically, the dust filter plate 26 and the heat dissipation port 7 are in a split structure, and both the dust filter plate 26 and the heat dissipation port 7 are in a cross-shaped structure, and the side of the dust filter plate 26 is tightly fitted with the inner wall of the heat dissipation port 7.

[0026] By adopting the above technical solution, the insertion rod 22 is pulled down to separate it from the connecting plate 25, and then the dust filter plate 26 can be removed for cleaning. The side of the dust filter plate 26 and the inner wall of the heat dissipation port 7 fit tightly together to make the connection more sealed.

[0027] Specifically, the protection component 21 includes a protection plate 211, a spring 212, a fixed cylinder 213 and a slide rod 214. Two fixed cylinders 213 are provided on the top of the protection shell 1. Spring 212 is embedded in the fixed cylinder 213. The top of the spring 212 is connected to the slide rod 214. The top of the slide rod 214 is connected to the protection plate 211.

[0028] By adopting the above technical solution, the protection plate 211 above the device can play a good role in isolating and protecting. The sliding rod 214 and the fixed tube 213 are limited by sliding. When the spring 1 212 is deformed, the impact on the protection plate 211 can be further reduced, thereby improving the protection effect of the protection plate 211.

[0029] When the present embodiment is in use, the isolating switch body 4 is installed and positioned by the installation and fixing ears 6 at the bottom. The bottom positioning head in the protective shell 1 is plugged into the positioning hole 8 and then installed on the top of the isolating switch body 4 through the locking frame to protect the fuse 5. The dust filter plate 26 inside the heat dissipation port 7 can intercept and filter dust to prevent dust from interfering with the fuse 5 and making it inconvenient to clean. The plug rod 22 is pulled down to separate it from the connecting plate 25, and then the dust filter plate 26 can be removed for cleaning. Under the pulling force of the spring 24 at the bottom of the side block 23, the plug rod 22 is tightly plugged into the connecting plate 25 to make the dust filter plate 26 firmly installed and positioned. The protective plate 211 above the device can play a good isolating and protective role. The sliding limit between the sliding rod 214 and the fixing cylinder 213 and the deformation of the spring 1 212 can further reduce the impact on the protective plate 211, thereby improving the protection effect of the protective plate 211.

[0030] Example 2

[0031] The present embodiment is different from the embodiment 1 in that the fixing assembly 3 includes a sleeve block 31, a spring three 32, a side seat 33, a fixing rod 34 and a fixing groove 36, fixing grooves 36 are provided on both sides of the isolating switch body 4, side seats 33 are installed on both sides of the protective shell 1, fixing rods 34 are embedded in the side seats 33, the surface of the fixing rod 34 is sleeved with a sleeve block 31, and a spring three 32 is provided on the outer side of the sleeve block 31.

[0032] Specifically, support blocks 35 are provided on both sides of the isolating switch body 4 , the bottom end of the protective shell 1 is in contact with the surface of the support blocks 35 , and a plug-in structure is formed between the fixing rod 34 and the fixing groove 36 .

[0033] By adopting the above technical solution, under the elastic force of the spring 32 inside the side seat 33 on the sleeve block 31, the fixing rod 34 and the fixing groove 36 are tightly inserted to make the protective shell 1 and the isolating switch body 4 firmly connected and assembled, and the supporting block 35 plays an auxiliary supporting role on the protective shell 1 to make the structural stability of the device higher.

[0034] When this embodiment is used, under the elastic force of the spring 32 inside the side seat 33 on the sleeve block 31, the fixing rod 34 and the fixing groove 36 are tightly inserted to ensure that the protective shell 1 and the isolating switch body 4 are firmly connected and assembled, and the supporting block 35 plays an auxiliary supporting role on the protective shell 1 to make the structural stability of the device higher.

[0035] The structure and use principle of the protective shell 1, the isolating switch body 4, the fuse 5, the mounting and fixing ears 6, the heat dissipation port 7 and the positioning hole 8 in the utility model have been disclosed in Chinese patent application No. 202321561621.8 which discloses an isolating switch fuse set. Its working principle is that the isolating switch body 4 is installed and positioned through the mounting and fixing ears 6 at the bottom, the protective shell 1 and the positioning hole 8 are plugged and installed on the top of the isolating switch body 4 to protect the fuse 5, and the heat dissipation port 7 is used for ventilation and heat dissipation.

[0036] Working principle and use process of the utility model: When the utility model is used, the isolating switch body 4 is installed and positioned through the installation and fixing ears 6 at the bottom, and the bottom positioning head in the protective shell 1 is plugged into the positioning hole 8 and then installed on the top of the isolating switch body 4 through the locking frame to protect the fuse 5. Under the elastic force of the spring 32 inside the side seat 33 on the sleeve block 31, the fixing rod 34 and the fixing groove 36 are tightly plugged to make the protective shell 1 and the isolating switch body 4 connected and assembled firmly, and the support block 35 plays an auxiliary lifting role on the protective shell 1 to make the structural stability of the device higher, and the dust filter plate 26 inside the heat dissipation port 7 Dust can be intercepted and filtered to prevent dust from interfering with the fuse 5 and making it inconvenient to clean. The plug rod 22 is pulled down to separate it from the connecting plate 25, and then the dust filter plate 26 can be removed for cleaning. Under the pulling force of the spring 24 at the bottom of the side block 23, the plug rod 22 and the connecting plate 25 are tightly plugged together, so that the dust filter plate 26 can be installed and positioned firmly. The protection plate 211 above the device can play a good isolating and protective role. The sliding rod 214 and the fixed cylinder 213 are limited by sliding. When the spring 212 is deformed, the impact on the protection plate 211 can be further reduced, so that the protection effect of the protection plate 211 is better.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An isolating switch fuse set, comprising an isolating switch body, characterized in that: Both sides of the isolating switch body are connected with mounting fixing ears, a positioning hole is provided on the top of the isolating switch body, a fuse is arranged on the top of the isolating switch body, a fixing component is provided on the side of the isolating switch body, a protective shell is installed above the isolating switch body, a heat dissipation port is provided inside the protective shell, and a dustproof component is provided on the side of the protective shell.

2. The isolating switch fuse set according to claim 1, characterized in that: The dustproof component includes a protective component, an insertion rod, a side block, a second spring, a connecting plate and a dust filter plate, wherein a side block is arranged on the side of the protective shell, an insertion rod is embedded in the inside of the side block, a second spring is connected between the rod cap of the insertion rod and the side block, a dust filter plate is embedded in the inside of the heat dissipation port, a side end of the dust filter plate is connected to a connecting plate, and a protective component is arranged on the top of the protective shell.

3. The isolating switch fuse set according to claim 2, characterized in that: The dust filter plate and the heat dissipation port are in a split structure, both the dust filter plate and the heat dissipation port are in a cross-shaped structure, and the side of the dust filter plate is tightly fitted with the inner wall of the heat dissipation port.

4. The isolating switch fuse set according to claim 2, characterized in that: The protection component includes a protection plate, a spring 1, a fixed tube and a sliding rod, wherein two fixed tubes are arranged on the top of the protection shell, a spring 1 is embedded inside the fixed tube, the top of the spring 1 is connected to the sliding rod, and the top of the sliding rod is connected to the protection plate.

5. The isolating switch fuse set according to claim 1, characterized in that: The fixing assembly includes a sleeve block, a spring three, a side seat, a fixing rod and a fixing groove, wherein fixing grooves are provided on both sides of the isolating switch body, side seats are installed on both sides of the protective shell, fixing rods are embedded in the side seats, the surface of the fixing rods is sleeved with a sleeve block, and a spring three is arranged on the outside of the sleeve block.

6. The isolating switch fuse set according to claim 5, characterized in that: Support blocks are arranged on both sides of the isolating switch body, the bottom end of the protective shell fits with the surface of the support block, and a plug-in structure is formed between the fixing rod and the fixing groove.

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