A strip fuse type isolating switch

Abstract

The present application relates to a strip fuse type isolating switch, and relates to the technical field of isolating switches, which includes a plurality of isolating switch bodies that are mutually clamped together, the isolating switch body includes an isolating shell, an insulating base is installed at the bottom of the isolating shell, a pair of line rows are installed on the insulating base, a pair of symmetrical limit support plates are installed inside the isolating shell, a sliding spring is clamped on the limit support plate, a fuse device is detachably installed on the sliding spring, a flip traction member is installed on the isolating shell, the flip traction member is used to control the up and down movement and flipping of the fuse device, a flip control board is installed at the upper end of the isolating switch, the flip board is clamped on the flip control board, T-shaped slots are opened on both sides of the flip control board, and flip protrusions that are clamped with the T-shaped slots are fixed on both sides of the flip board; the flip control board is used to control the simultaneous flipping of multiple flip boards. The present application has the effect of disconnecting the fuse device individually, and can also disconnect multiple fuse devices at the same time.

Description

Technical Field

[0001] The present application relates to the technical field of isolating switches, and in particular to a strip fuse type isolating switch. Background Art

[0002] Strip fuse disconnector is an electrical device used for main circuit protection and isolation. It is mainly composed of a base, a pedestal, a handle, an arc extinguishing cover and other parts. It is widely used in industrial enterprise distribution systems, complete sets of products and imported box-type substations with an AC frequency of 50Hz and a rated voltage of up to 660V. When working normally, the handle is in the closed position, the fuse body contacts the static contact, and the circuit is turned on.

[0003] When the circuit is overloaded or short-circuited, the current is too large and the fuse element melts, cutting off the circuit and providing protection.

[0004] When inspection or maintenance is required, rotate the handle to the open position to separate the fuse and the static contact, forming an obvious disconnection point to ensure the safety of the maintenance personnel.

[0005] For example, a Chinese patent with publication number CN206293350U discloses a strip fuse isolating switch, which can disconnect three fuses at the same time by rotating a linkage mechanism operated by a handle. It has obvious advantages in instantaneous power failure, but cannot disconnect fuses individually. During maintenance, it is necessary to disconnect three-phase electricity at the same time, which affects production operations. In traditional strip fuse isolating switches, fuses are disconnected from the line through independent flipping mechanisms, but it is impossible to disconnect three-phase electricity at the same time. In actual production operations, both have their own advantages and disadvantages. Summary of the invention

[0006] The purpose of the present application is to provide a strip fuse type disconnector to solve the above-mentioned technical problems.

[0007] The present application provides a strip-type fuse-type isolating switch adopts the following technical solution: a strip-type fuse-type isolating switch comprises a plurality of isolating switch bodies that are mutually clamped together, the isolating switch body comprises an isolating shell, an insulating base is installed at the bottom of the isolating shell, a pair of line rows are installed on the insulating base, a pair of symmetrical limit support plates are installed inside the isolating shell, a sliding spring is clamped on the limit support plate, a fuse device is detachably installed on the sliding spring, a flip traction member is installed on the isolating shell, and the flip traction member is used to control the fuse The component moves up and down and flips, the flip traction component includes a U-shaped clamping plate clamped at both ends of the fuse component, a sliding support plate is fixed on the U-shaped clamping plate, a pair of linkage plates are hinged on both sides of the sliding support plate, a flip plate is hinged on the end of the isolation shell, and the flip plate is hinged to the linkage plate; a flip control plate is installed on the upper end of the isolation switch, the flip plate is clamped on the flip control plate, T-shaped slots are opened on both sides of the flip control plate, and flip protrusions clamped with the T-shaped slots are fixed on both sides of the flip plate; the flip control plate is used to control the simultaneous flipping of multiple flip plates.

[0008] Optionally, annular protrusions are fixed at both ends of the fuse device, and a strip groove is opened on the U-shaped clamping plate, and the strip groove is used to allow the conductive plates at both ends of the fuse device to pass through; a clamping protrusion is fixed at the end of the U-shaped clamping plate connected to the fuse device, and the clamping protrusion is clamped with the annular protrusion; the side of the U-shaped clamping plate away from the fuse device is abutted against the limiting support plate.

[0009] Optionally, a limiting groove is provided on the limiting support plate, and the sliding contact spring comprises a U-shaped spring piece sleeved on the limiting support plate, and a U-shaped clamping groove is provided between the U-shaped spring pieces, and the U-shaped clamping groove is used to clamp the conductive pieces at both ends of the fuse device; a locking plate is provided on the side where the U-shaped spring piece is connected to the limiting support plate, and the locking plate is clamped in the limiting groove, and the U-shaped spring piece is clamped on the limiting support plate by its own elastic force; a plurality of connecting protrusions are provided on the side where the U-shaped clamping groove is connected to the conductive pieces at both ends of the fuse device; the locking plate is inclined upward, and the locking plates on the U-shaped spring piece form an "eight" structure.

[0010] Optionally, a locking base is fixed at the lower end of the U-shaped spring piece, the locking base is clamped with the insulating base, a locking groove is provided on the insulating base and is clamped with the locking base, and the locking base is fixedly connected to the wire row; a pair of limit clamps are fixedly installed on the upper side of the insulating base, and the limit clamps are used to clamp the fuse device.

[0011] Optionally, a T-shaped protrusion is fixed to the end of the isolation shell; a T-shaped groove is formed at one end of the isolation shell away from the T-shaped protrusion, and the T-shaped protrusion is snap-fitted into the T-shaped groove.

[0012] Optionally, a deformable protrusion is fixed to one end of the T-shaped protrusion connected to the isolation shell, a limiting groove matching the deformable protrusion is provided in the T-shaped groove, and the material of the deformable protrusion is asphalt.

[0013] Optionally, a hinged protrusion is installed on the isolation shell, and one end of the flip plate is hinged to the hinged protrusion; a flip buckle plate is fixed on the side of the flip plate away from the U-shaped clamping plate.

[0014] Optionally, the flip control panel is connected to the isolation shell by an elastic telescopic part, one end of the elastic telescopic part is hinged to the isolation shell, and the elastic telescopic part is hinged to the flip control panel away from the isolation shell; a lifting handle is fixed on the upper side of the flip control panel, and the lifting handle is used to pull the flip control panel up and down; a limit platform is fixed on the flip control panel, and the limit platform abuts against the upper end of the isolation shell.

[0015] Optionally, a heat dissipation hole is opened on the isolation shell; and a ground connection terminal is installed on the isolation shell.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] 1. A strip-type fuse-type isolating switch is composed of a plurality of isolating switch bodies that are mutually clamped together. The isolating switch bodies can be used alone or assembled together. When the isolating switch body in one phase circuit is damaged, only the isolating switch body of one phase needs to be replaced, thereby reducing resource waste;

[0018] 2. The flip traction member and the flip control board cooperate with each other through the flip protrusion and the T-shaped card slot. When the flip control board is connected to the isolation shell, the flip traction member can be flipped freely to control the connection and disconnection of the single-phase circuit. When the flip control board is separated from the isolation shell, multiple flip traction members can be controlled to complete flipping at the same time, so that the multi-phase circuit is disconnected at the same time, thereby realizing the disconnection of the single-phase circuit alone, and the disconnection of the three-phase circuit at the same time;

[0019] 3. A T-shaped groove is provided on the flip control plate, and the flip protrusion can move horizontally in the T-shaped groove, so that the flip plate and the flip control plate can be separated in the process of the flip control plate controlling the flip plate to complete the flip, thereby improving the stability of the flip control;

[0020] 4. During the flipping process of the flipping traction part, the U-shaped clamping plate moves vertically up and down in the isolation shell under the action of the linkage plate. When the U-shaped clamping plate leaves the isolation shell, the U-shaped clamping plate follows the flipping plate to complete the flipping action. The fuse device is clamped on the U-shaped clamping plate. The fuse device moves vertically up and down during the connection and separation with the sliding contact spring piece. The sliding contact spring piece installed on the limit support plate is evenly stressed, and the two groups of sliding contact spring pieces wear uniformly, which effectively prevents the two groups of sliding contact spring pieces in the isolation shell from wearing unevenly, resulting in one end of the sliding contact spring piece connected at both ends of the fuse device being tight and the other end being loose, causing unstable connection and affecting the conductive effect;

[0021] 5. When the U-shaped clamping plate leaves the isolation housing, it follows the flip plate to complete the flipping action, and the opening direction of the U-shaped clamping plate is upward, which is convenient for the removal and installation of the fuse device, and is convenient for the maintenance and replacement of the fuse device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the isolating switch body according to an embodiment of the present application;

[0024] Figure 3 This is a schematic diagram of the internal structure of the isolating switch body according to an embodiment of the present application;

[0025] Figure 4 This is a schematic diagram of the structure of the flip traction member according to an embodiment of the present application;

[0026] Figure 5 It is a schematic diagram of the structure of a fuse device in an embodiment of the present application;

[0027] Figure 6 This is a schematic diagram of the structure of the sliding contact spring in an embodiment of the present application;

[0028] Figure 7 This is a schematic diagram of the isolation housing structure of an embodiment of the present application;

[0029] Figure 8 This is a schematic diagram of the insulating base structure of an embodiment of the present application;

[0030] Fig. 9 This is a structural schematic diagram of a first implementation method of connecting a locking base and a wire row in an embodiment of the present application;

[0031] Fig.10 This is a structural schematic diagram of a second implementation method of connecting a locking base and a wire row in an embodiment of the present application;

[0032] Fig.11 It is a schematic diagram of the structure of the flip control board according to an embodiment of the present application.

[0033] In the figure, 1, isolation shell; 11, limiting support plate; 111, limiting groove; 12, T-shaped protrusion; 121, deformation protrusion; 13, T-shaped groove; 131, limiting groove; 14, hinged protrusion; 15, heat dissipation hole; 16, ground connection terminal; 2, insulating base; 21, wire row; 22, locking groove; 23, limiting card plate; 3, sliding spring; 31, U-shaped spring; 32, U-shaped clamping groove; 33, locking plate ; 34. Connecting protrusion; 35. Locking base; 4. Fuse device; 41. Annular protrusion; 5. Flip traction member; 51. U-shaped clamping plate; 52. Sliding support plate; 53. Linkage plate; 54. Flip plate; 55. Strip groove; 56. Clamping protrusion; 57. Flip protrusion; 58. Flip buckle plate; 6. Flip control panel; 61. T-shaped slot; 62. Elastic telescopic member; 63. Lifting handle; 64. Limiting table. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1 -Attached Fig.11 , further details of this application are given.

[0035] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 A strip-shaped fuse-type isolating switch, comprising a plurality of isolating switch bodies connected to each other, the isolating switch body comprising an isolating shell 1, an insulating base 2 is installed at the bottom of the isolating shell 1, a pair of line rows 21 are installed on the insulating base 2, a pair of symmetrical limit support plates 11 are installed inside the isolating shell 1, a sliding spring 3 is clamped on the limit support plate 11, a fuse device 4 is detachably mounted on the sliding spring 3, a flip traction member 5 is installed on the isolating shell 1, the flip traction member 5 is used to control the up and down movement and flipping of the fuse device 4, and the flip traction member 5 includes a clamped fuse The U-shaped clamping plates 51 at both ends of the disconnector 4 are fixed with sliding support plates 52 on the U-shaped clamping plates 51, and a pair of linkage plates 53 are hinged on both sides of the sliding support plates 52. A flip plate 54 is hinged on the end of the isolation shell 1, and the flip plate 54 is hinged with the linkage plate 53; a flip control plate 6 is installed on the upper end of the isolation switch, and the flip plate 54 is clamped on the flip control plate 6. T-shaped slots 61 are opened on both sides of the flip control plate 6, and flip protrusions 57 clamped with the T-shaped slots 61 are fixed on both sides of the flip plate 54; the flip control plate 6 is used to control the simultaneous flipping of multiple flip plates 54.

[0036] Reference Figure 1 A strip-type fuse-type isolating switch is composed of a plurality of isolating switch bodies that are mutually clamped together. The isolating switch bodies can be used alone or in an assembled manner. When the isolating switch body in one phase circuit is damaged, only the isolating switch body of one phase needs to be replaced, thereby reducing resource waste.

[0037] Reference Figure 1 , Figure 4 The flip traction member 5 and the flip control board 6 cooperate with each other through the flip protrusion 57 and the T-shaped card slot 61. When the flip control board 6 is connected to the isolation shell 1, the flip traction member 5 can be flipped freely to control the connection and disconnection of the single-phase circuit. When the flip control board 6 is separated from the isolation shell 1, multiple flip traction members 5 can be controlled to complete flipping at the same time, so that the multi-phase circuit is disconnected at the same time, thereby realizing that the single-phase circuit can be disconnected separately, and the three-phase circuit can be disconnected at the same time;

[0038] During the flipping process of the flipping traction member 5, the U-shaped clamping plate 51 moves vertically up and down in the isolation shell 1 under the action of the linkage plate 53. When the U-shaped clamping plate 51 leaves the isolation shell 1, the U-shaped clamping plate 51 follows the flipping plate 54 to complete the flipping action. The fuse device 4 is clamped on the U-shaped clamping plate 51. The fuse device 4 moves vertically up and down during the connection and separation with the sliding contact spring piece 3. The sliding contact spring piece 3 installed on the limiting support plate 11 is evenly stressed, and the two groups of sliding contact spring pieces 3 wear uniformly, which effectively prevents the two groups of sliding contact spring pieces 3 in the isolation shell 1 from wearing unevenly, resulting in one end of the sliding contact spring piece 3 connected at both ends of the fuse device 4 being tight and the other end being loose, causing unstable connection and affecting the conductive effect.

[0039] When the U-shaped clamping plate 51 leaves the isolation housing 1 , it follows the flip plate 54 to complete the flipping action, and the opening direction of the U-shaped clamping plate 51 is upward, which is convenient for the removal and installation of the fuse device 4 and for the maintenance and replacement of the fuse device 4 .

[0040] Reference Figure 4 , Figure 5 Annular protrusions 41 are fixed at both ends of the fuse device 4, and strip grooves 55 are opened on the U-shaped clamping plate 51. The strip grooves 55 are used to allow the conductive sheets at both ends of the fuse device 4 to pass through; a clamping protrusion 56 is fixed at one end of the U-shaped clamping plate 51 connected to the fuse device 4, and the clamping protrusion 56 is clamped with the annular protrusion 41; the side of the U-shaped clamping plate 51 away from the fuse device 4 is abutted against the limiting support plate 11.

[0041] During the installation of the fuse device 4, the conductive sheets at both ends of the fuse device 4 are inserted into the strip grooves 55, and the fuse device 4 is pressed downward, so that the clamping protrusions 56 are clamped in the annular protrusions 41, so that the fuse device 4 is locked to the inner side of the U-shaped clamping plate 51 by the elastic force of the U-shaped clamping plate 51 itself, so that the fuse device 4 can move up and down and complete the flip under the action of the flipping traction member 5; when the fuse device 4 is removed, it is only necessary to bend the U-shaped clamping plate 51 to expand the opening of the U-shaped clamping plate 51, so that the fuse device 4 can be removed, so that the installation and removal of the fuse device 4 are more convenient;

[0042] The U-shaped clamping plate 51 is clamped at both ends of the fuse device 4. The U-shaped clamping plate 51 can isolate the arc, and can reduce the influence of the arc generated during the installation and separation of the conductive sheet at both ends of the fuse device 4 and the sliding spring sheet 3 on the fuse device 4;

[0043] The U-shaped clip plate 51 is connected to a side away from the fuse device 4 and abuts against the limit support plate 11. The limit support plate 11 generates a limit force on the U-shaped clip plate 51, so that the flip plate 54 pulls the U-shaped clip plate 51 to move up and down in a straight line in the isolation shell 1; at the same time, it can effectively prevent the opening of the U-shaped clip plate 51 from becoming larger during the up and down movement, so that the fuse device 4 is separated from the U-shaped clip plate 51.

[0044] Reference Figure 3 , Figure 6 , Figure 7 A limiting groove 111 is provided on the limiting support plate 11, and the sliding contact spring piece 3 includes two U-shaped spring pieces 31 sleeved on the limiting support plate 11, the two U-shaped spring pieces 31 are an integrated structure, and the adjacent side plates of the two U-shaped spring pieces 31 form a U-shaped clamping groove 32, and the U-shaped clamping groove 32 is used to clamp the conductive pieces at both ends of the fuse device 4; a locking plate 33 is provided on the side where the U-shaped spring piece 31 is connected to the limiting support plate 11, and the locking plate 33 is clamped in the limiting groove 111, and the U-shaped spring piece 31 is clamped on the limiting support plate 11 by its own elastic force; a plurality of connecting protrusions 34 are provided on the side where the U-shaped clamping groove 32 is connected to the conductive pieces at both ends of the fuse device 4; the locking plate 33 is inclined upward, and the locking plate 33 on the U-shaped spring piece 31 forms an "eight" structure.

[0045] When the U-shaped spring piece 31 is clamped on the limiting support plate 11, the U-shaped spring piece 31 generates a clamping force and clamps on the limiting support plate 11. At the same time, the locking plate 33 installed on the U-shaped spring piece 31 is inserted into the limiting groove 111 to generate a clamping force, which can effectively prevent the U-shaped spring piece 31 from being separated from the limiting support plate 11.

[0046] The locking plate 33 on the U-shaped spring piece 31 forms an "eight" structure. When the U-shaped spring piece 31 is installed on the limiting support plate 11, the locking plate 33 opens under its own elastic force to facilitate the installation of the U-shaped spring piece 31. When the locking plate 33 reaches the position of the limiting groove 111, it is stuck in the limiting groove 111. During the process of removing the fuse device 4, the U-shaped spring piece 31 moves upward under the action of friction, and the upper end opening of the locking plate 33 forming the "eight" structure becomes smaller, generating a locking force, thereby effectively preventing the U-shaped spring piece 31 from separating from the limiting support plate 11; thereby effectively preventing the sliding contact spring piece 3 from falling off when the fuse device 4 is removed;

[0047] When the fuse device 4 is connected to the sliding spring piece 3, the conductive sheets at both ends of the fuse device 4 are inserted into the U-shaped clamping groove 32, and the U-shaped clamping groove 32 generates a clamping force on the conductive sheets at both ends of the fuse device 4; a plurality of connecting protrusions 34 are arranged on one side where the U-shaped clamping groove 32 is connected to the conductive sheets at both ends of the fuse device 4, and the connecting protrusions 34 can increase the contact points with the conductive sheets at both ends of the fuse device 4, thereby improving the conductive performance.

[0048] Reference Figure 3 , Figure 6 , Figure 8 A locking base 35 is fixed at the lower end of the U-shaped spring piece 31, and the locking base 35 is snap-fitted with the insulating base 2. A locking groove 22 snap-fitted with the locking base 35 is provided on the insulating base 2, and the locking base 35 is fixedly connected with the line row 21; the locking base 35 is a trapezoidal structure with a small top and a large bottom, and the locking base 35 is snap-fitted in the locking groove 22, and the locking groove 22 is also a trapezoidal structure with a small top and a large bottom. The locking base 35 is snap-fitted with the locking groove 22, and the insulating base 2 generates traction on the sliding contact spring piece 3, which can effectively prevent the sliding contact spring piece 3 from falling off;

[0049] Reference Fig. 9 , the locking base 35 is fixedly connected to the wire row 21; the first embodiment: the locking base 35 is fixedly connected to the wire row 21 by bolts, the bolts pass through the wire row 21 and the insulating base 2, and are threadedly installed on the locking base 35; a plurality of bolt holes are opened on the insulating base 2, after the bolt holes of the wire row 21 are aligned with the bolt holes on the locking insulating base 2, the bolts are passed through the bolt holes, the bolts are threadedly connected to the locking base 35, and the bolts fix the wire row 21 to the lower side of the insulating base 2, thereby facilitating the connection between the wire row 21 and the wires.

[0050] Reference Fig.10 , the locking base 35 is fixedly connected to the wire row 21; the second embodiment: a connecting plate is provided between the locking base 35 and the wire row 21, the locking base 35, the wire row 21 and the connecting plate are an integrated structure, and a locking groove 22 is provided on the lower side of the locking groove 22 for the connecting plate to pass through; the locking base 35, the wire row 21 and the connecting plate are an integrated structure to improve the conductive efficiency

[0051] A pair of limit clamps 23 are fixedly mounted on the upper side of the insulating base 2. The limit clamps 23 are used to clamp the fuse device 4. The fuse device 4 is limited by the limit clamps 23 to improve the installation stability of the fuse device 4 and to quickly position the fuse device 4.

[0052] Reference Figure 2 , Figure 3A T-shaped protrusion 12 is fixed at the end of the isolation shell 1; a T-shaped groove 13 is opened at one end of the isolation shell 1 away from the T-shaped protrusion 12, and the T-shaped protrusion 12 is clamped in the T-shaped groove 13; the T-shaped protrusion 12 and the T-shaped groove 13 can be connected to each other, so that the isolation switch body can be quickly spliced ​​together to form a strip structure.

[0053] Reference Figure 2 , Figure 3 A deformable protrusion 121 is fixed on one end of the T-shaped protrusion 12 connected to the isolation shell 1, and a limiting groove 131 matching the deformable protrusion 121 is arranged in the T-shaped groove 13. The material of the deformable protrusion 121 is asphalt. During the splicing process of the isolating switch body, the deformable protrusion 121 is heated. After the T-shaped protrusion 12 and the T-shaped groove 13 are connected, the deformable protrusion 121 is stably lowered to bond the T-shaped protrusion 12 and the T-shaped groove 13 together; after the deformable protrusion 121 solidifies, it is partially clamped in the limiting groove 131 to generate a limiting force, which can reduce the displacement between the T-shaped protrusion 12 and the T-shaped groove 13 and improve the stability of the connection of the isolating switch body.

[0054] Reference Figure 2 , Figure 3 , Figure 4 , a hinged protrusion 14 is installed on the isolation shell 1, and one end of the flip plate 54 is hinged to the hinged protrusion 14; the flip plate 54 is hinged to the isolation shell 1 through the hinged protrusion 14 installed on the upper side of the isolation shell 1, so that the flip plate 54 can be flipped 180 degrees with the isolation shell 1, and the U-shaped clamping plate 51 installed on the lower side of the flip plate 54 can be flipped to the upper side of the flip plate 54, so that the replacement of the fuse device 4 is more convenient;

[0055] A flip buckle plate 58 is fixed on the side of the flip plate 54 away from the U-shaped clamping plate 51 . Inserting a finger into the flip buckle plate 58 makes it easier to flip the flip plate 54 .

[0056] Reference Figure 1 , Fig.11 The flip control panel 6 is connected to the isolation shell 1 through an elastic telescopic member 62, one end of the elastic telescopic member 62 is hinged to the isolation shell 1, and the elastic telescopic member 62 is hinged to the flip control panel 6 away from the isolation shell 1; a lifting handle 63 is fixed on the upper side of the flip control panel 6, and the lifting handle 63 is used to pull the flip control panel 6 up and down; a limit platform 64 is fixed on the flip control panel 6, and the limit platform 64 is in contact with the upper end of the isolation shell 1;

[0057] The elastic telescopic member 62 is a spring, one end of which is hinged on the isolation shell 1, and the other end is hinged on the flip control board 6. An angle is formed between the elastic telescopic member 62 and the flip control board 6, and a pulling force is generated on the flip control board 6. Multiple springs and the flip control board 6 form a parallelogram structure. When the flip control board 6 is snapped onto the isolation shell 1, the elastic telescopic member 62 generates a downward pulling force on the flip control board 6, so that the flip control board 6 is stably locked on the upper end of the isolation shell 1, effectively preventing the flip control board 6 from moving freely. When the flip control board 6 is pulled upward by pulling the handle 63, the elastic telescopic member 62 can be extended. After the rotating plate 54 is flipped 180 degrees under the action of the flip control plate 6, the protrusions on both sides of the flip plate 54 are stuck in the T-shaped slots 61, and the elastic telescopic member 62 generates a downward pulling force on the flip control plate 6 again. At this time, the fuse device 4 on the U-shaped clamping plate 51 can be replaced. After the replacement is completed, the flip control plate 6 is controlled to move by pulling the handle 63 again, and the flip plate 54 is reset again. The fuse device 4 is inserted into the isolation shell 1, so that the fuse device 4 and the sliding spring piece 3 are disconnected; the elastic telescopic member 62 generates a downward pulling force on the flip control plate 6, thereby improving the stability of the installation and operation of the flip control plate 6.

[0058] Reference Figure 2 A heat dissipation hole 15 is provided on the isolation shell 1; the heat dissipation effect of the isolation switch body can be improved through the heat dissipation hole 15; a ground connection terminal 16 is installed on the isolation shell 1, and the static electricity generated by the isolation switch body can be conducted away in time, which can effectively prevent electric shock.

[0059] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A strip fuse type disconnector, characterized in that: The invention comprises a plurality of isolating switch bodies which are mutually clamped together, the isolating switch body comprising an isolating shell (1), an insulating base (2) being mounted at the bottom of the isolating shell (1), a pair of wire rows (21) being mounted on the insulating base (2), a pair of symmetrical limit support plates (11) being mounted inside the isolating shell (1), a sliding spring sheet (3) being clamped on the limit support plate (11), a fuse device (4) being detachably mounted on the sliding spring sheet (3), a flipping traction member (5) being mounted on the isolating shell (1), the flipping traction member (5) being used to control the upward and downward movement and flipping of the fuse device (4), the flipping traction member (5) comprising U-shaped members clamped at both ends of the fuse device (4) A U-shaped clamping plate (51) is provided on the U-shaped clamping plate (51), a sliding support plate (52) is fixed on the U-shaped clamping plate (51), a pair of linkage plates (53) are hinged on both sides of the sliding support plate (52), a flip plate (54) is hinged on the end of the isolation housing (1), and the flip plate (54) is hinged to the linkage plate (53); a flip control plate (6) is installed on the upper end of the isolation switch, the flip plate (54) is clamped on the flip control plate (6), T-shaped clamping grooves (61) are provided on both sides of the flip control plate (6), and flip protrusions (57) that are clamped to the T-shaped clamping grooves (61) are fixed on both sides of the flip plate (54); the flip control plate (6) is used to control the simultaneous flipping of multiple flip plates (54).

2. A strip fuse type disconnector according to claim 1, characterized in that: Annular protrusions (41) are fixed at both ends of the fuse device (4); a strip groove (55) is provided on the U-shaped clamping plate (51); the strip groove (55) is used to allow the conductive sheets at both ends of the fuse device (4) to pass through; a clamping protrusion (56) is fixed at one end of the U-shaped clamping plate (51) connected to the fuse device (4); the clamping protrusion (56) is clamped with the annular protrusion (41); and the side of the U-shaped clamping plate (51) away from the fuse device (4) is abutted against the limit support plate (11).

3. A strip fuse type disconnector according to claim 2, characterized in that: The limit support plate (11) is provided with a limit groove (111); the sliding contact spring piece (3) comprises a U-shaped spring piece (31) sleeved on the limit support plate (11); a U-shaped clamping groove (32) is provided between the U-shaped spring pieces (31); the U-shaped clamping groove (32) is used to clamp the conductive pieces at both ends of the fuse element (4); a locking plate (33) is provided on the side where the U-shaped spring piece (31) is connected to the limit support plate (11); the locking plate (33) is clamped in the limit groove (111); the U-shaped spring piece (31) is clamped on the limit support plate (11) by its own elastic force; a plurality of connecting protrusions (34) are provided on the side where the U-shaped clamping groove (32) is connected to the conductive pieces at both ends of the fuse element (4); the locking plate (33) is inclined upward, and the locking plate (33) on the U-shaped spring piece (31) forms an "eight" structure.

4. A strip fuse type disconnector according to claim 3, characterized in that: A locking base (35) is fixed at the lower end of the U-shaped spring piece (31), the locking base (35) is clamped with the insulating base (2), a locking groove (22) is provided on the insulating base (2) and is clamped with the locking base (35), and the locking base (35) is fixedly connected to the wire row (21); a pair of limit clamping plates (23) are fixedly mounted on the upper side of the insulating base (2), and the limit clamping plates (23) are used to clamp the fuse device (4).

5. A strip fuse type disconnector according to claim 1, characterized in that: A T-shaped protrusion (12) is fixed to the end of the isolation shell (1); a T-shaped groove (13) is formed at one end of the isolation shell (1) away from the T-shaped protrusion (12), and the T-shaped protrusion (12) is clamped in the T-shaped groove (13).

6. A strip fuse type disconnector according to claim 5, characterized in that: A deformable protrusion (121) is fixed to one end of the T-shaped protrusion (12) connected to the isolation shell (1), and a limiting groove (131) matching the deformable protrusion (121) is provided in the T-shaped groove (13), and the material of the deformable protrusion (121) is asphalt.

7. A strip fuse type disconnector according to claim 5, characterized in that: A hinged protrusion (14) is mounted on the isolation housing (1), and one end of the flip plate (54) is hingedly connected to the hinged protrusion (14); a flip buckle plate (58) is fixed to the side of the flip plate (54) away from the U-shaped clamping plate (51).

8. A strip fuse type disconnector according to claim 7, characterized in that: The flip control panel (6) is connected to the isolation shell (1) via an elastic telescopic member (62), one end of the elastic telescopic member (62) is hinged to the isolation shell (1), and the elastic telescopic member (62) is hinged to the flip control panel (6) away from the isolation shell (1); a lifting handle (63) is fixed on the upper side of the flip control panel (6), and the lifting handle (63) is used to pull the flip control panel (6) up and down; a limiting platform (64) is fixed on the flip control panel (6), and the limiting platform (64) is in contact with the upper end of the isolation shell (1).

9. A strip fuse type disconnector according to claim 1, characterized in that: A heat dissipation hole (15) is provided on the isolation shell (1); and a ground connection terminal (16) is installed on the isolation shell (1).

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