Wiring mechanism of fuse type disconnecting switch

Abstract

The utility model relates to a wiring mechanism of a fuse type disconnecting switch, which comprises a shell, a fuse and contact seats positioned at two ends of the fuse are mounted in the shell, a connecting plate is arranged on each contact seat in a protruding manner, and a through hole is formed in each connecting plate; the wiring module is provided with an accommodating groove which is used for placing the nut and limiting the rotation of the nut; a bolt; wherein a mounting hole for mounting the wiring module is formed in the shell, when the wiring module is mounted in the mounting hole, the connecting plate extends to the upper side of the wiring module, and the wiring module is detachably connected with the mounting hole; and the lower end of the bolt sequentially passes through an external copper nose and the through hole, is in threaded connection with a nut in the wiring module and extends into the accommodating groove. The beneficial effects of the utility model are that when the accommodating groove used for placing the nut on the wiring module is damaged, only the wiring module needs to be taken down and replaced by a new one, and the whole shell does not need to be replaced, thereby effectively saving the use cost.

Description

Technical Field

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

[0002] Fuse disconnector is a common electrical device used to cut off circuits and isolate electrical equipment. It can quickly cut off current in an emergency to protect equipment and personal safety. It is widely used in power systems, especially in power plants, substations and industrial electricity.

[0003] Announcement No. CN219303544U discloses a dual power supply isolating switch, including a base, and an insulating protective shell detachably mounted on the base, a knife seat with a one-piece terminal is fixed in the middle of the upper end surface of the base, a switch blade is mounted on the knife seat with a one-piece terminal, one end of the knife seat with a one-piece terminal is connected to two outlet terminals, the outlet terminals are fixed on an extension platform corresponding to the structure of the side of the base, and are connected to an indicator light, a first terminal and a second terminal are symmetrically mounted at both ends of the upper end surface of the base, and the insulating protective shell includes a first protective shell and a second protective shell that are butt-matched, the first protective shell and the second protective shell cover the second terminal and the first terminal respectively, the first protective shell and the second protective shell are symmetrically provided with throwing grooves, the throwing grooves are butt-jointed to form a sliding groove for the switch blade to be toggled back and forth, and the sides of the first protective shell and the second protective shell are both constructed with an extension shell for covering the two outlet terminals. The upper end surface of the base is provided with a plurality of accommodating grooves for the ends of the bolts to be placed, and a bottom plate is sealed and fixed to the lower end surface of the base.

[0004] The bolt in the above patent is placed in the receiving groove of the base, and the receiving groove is directly produced by injection molding of the base during production, so the receiving groove and the base are integrated. Since the end of the nut or bolt is placed in the receiving groove and the rotation is restricted by the side wall of the receiving groove, frequent tightening of the bolt during long-term use will cause the end of the nut or bolt and the receiving groove to be squeezed and worn. Sometimes, excessive force will cause damage to the receiving groove. Once the receiving groove is damaged, the wiring terminal at that position cannot be used, so the entire isolating switch needs to be replaced, causing unnecessary waste and shortening the service life of the isolating switch. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a wiring mechanism for a fuse-type disconnector to solve the above problems.

[0006] The technical solution of the utility model is implemented as follows: a wiring mechanism of a fuse-type isolating switch, comprising:

[0007] A housing, in which a fuse and contact seats located at both ends of the fuse are installed, a connecting plate protruding from the contact seat, and a through hole is opened on the connecting plate;

[0008] A wiring module, wherein the wiring module is provided with a receiving groove for placing the nut and limiting rotation;

[0009] bolt;

[0010] Among them, the shell is provided with a mounting hole for installing the wiring module. When the wiring module is installed in the mounting hole, the connecting plate extends to the upper side of the wiring module, and the wiring module is detachably connected to the mounting hole. The lower end of the bolt passes through the external copper nose, the through hole and the nut threaded connection in the wiring module in sequence and extends into the accommodating groove.

[0011] By adopting the above technical solution, the external copper nose can be effectively pressed and contacted to the connecting plate by tightening the bolt and the nut, so as to realize electrical conduction; the nut is restricted on the wiring module, and the wiring module is detachably installed on the shell. When the receiving groove for placing the nut on the wiring module is damaged, it is only necessary to remove the wiring module and replace it with a new one without replacing the entire shell, which effectively saves the cost of use and extends the service life of the disconnector.

[0012] The utility model is further configured as follows: a buckle is provided on the outer wall of the wiring module, and a buckle groove matching the buckle is provided on the inner wall of the mounting hole.

[0013] By adopting the above technical solution, the wiring module is inserted into the installation hole, so that the buckle and the buckle groove are connected by a buckle, and disassembly and assembly are very simple.

[0014] The utility model is further configured as follows: the inner wall of the accommodating groove is configured as a hexagonal shape corresponding to the outer wall of the nut, the groove bottom of the accommodating groove has a support bar extending upward along the hexagon of the inner wall, the top end of the support bar abuts against the lower side of the nut, and the distance between the top end of the support bar and the notch of the accommodating groove is not less than the height of the nut.

[0015] By adopting the above technical solution, the nut can be effectively restricted to a certain height, so that the lower end of the bolt can effectively extend into the receiving groove, making the connection of the bolt easier and more convenient.

[0016] The utility model is further configured as follows: a spring washer is arranged between the head of the bolt and the external copper nose.

[0017] By adopting the above technical solution, the spring washer can effectively improve the stability of the bolt connection and make it less likely to loosen.

[0018] The utility model is further configured as follows: the wiring module is made of insulating material.

[0019] By adopting the above technical solution, safety can be effectively improved.

[0020] The utility model is further configured as follows: a plurality of hollow grooves are provided on the wiring module at the outer side of the accommodating groove.

[0021] By adopting the above technical solution, the weight of the wiring module can be effectively reduced, making it more lightweight. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0024] Figure 2 It is an exploded view of the local structure of the utility model;

[0025] Figure 3 This is a cross-sectional view of the structure of the utility model;

[0026] Figure 4 for Figure 3 A is an enlarged view of the structure;

[0027] Figure 5 It is a schematic diagram of the local structure of the utility model;

[0028] Figure 6 It is a structural schematic diagram of the wiring module in the utility model. DETAILED DESCRIPTION

[0029] 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 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.

[0030] like Figure 1-Figure 6 As shown, the utility model discloses a wiring mechanism of a fuse type isolating switch, comprising:

[0031] A housing 1, in which a fuse 10 and contact seats 11 located at both ends of the fuse 10 are installed, a connecting plate 12 is protruded from the contact seat 11, and a through hole 120 is opened on the connecting plate 12;

[0032] A wiring module 2, wherein the wiring module 2 is provided with a receiving groove 20 for placing the nut 3 and limiting the rotation;

[0033] Bolt 4;

[0034] Among them, the shell 1 is provided with a mounting hole 13 for installing the wiring module 2. When the wiring module 2 is installed in the mounting hole 13, the connecting plate 12 extends to the upper side of the wiring module 2, and the wiring module 2 is detachably connected to the mounting hole 13. The lower end of the bolt 4 passes through the external copper nose, the through hole 120, and is threadedly connected with the nut 3 in the wiring module 2 and extends into the accommodating groove 20.

[0035] By adopting the above technical solution, the external copper nose can be effectively pressed and contacted to the connecting plate 12 by tightening the bolt 4 and the nut 3, so as to achieve electrical conduction; the nut 3 is restricted on the wiring module 2, and the wiring module 2 is detachably installed on the housing 1. When the receiving groove 20 for placing the nut 3 on the wiring module 2 is damaged, it is only necessary to remove the wiring module 2 and replace it with a new one, without replacing the entire housing, which effectively saves the cost of use and extends the service life of the disconnector.

[0036] In the embodiment of the utility model, a buckle 21 is provided on the outer wall of the wiring module 2 , and a buckle groove 130 matching the buckle 21 is provided on the inner wall of the mounting hole 13 .

[0037] By adopting the above technical solution, the wiring module 2 is inserted into the mounting hole 13 so that the buckle 21 and the buckle groove 130 are buckled and connected, and the assembly and disassembly are very simple.

[0038] In an embodiment of the utility model, the inner wall of the receiving groove 20 is set to be hexagonal corresponding to the outer wall of the nut 3, and the bottom of the receiving groove 20 has a support bar 22 extending upward along the hexagon of the inner wall, and the top of the support bar 22 abuts against the lower side of the nut 3, and the distance between the top of the support bar 22 and the notch of the receiving groove 20 is not less than the height of the nut 3.

[0039] By adopting the above technical solution, the nut 3 can be effectively restricted to a certain height, so that the lower end of the bolt 4 can effectively extend into the receiving groove 20, making the connection of the bolt 4 easier and more convenient.

[0040] In the embodiment of the utility model, a spring washer 5 is provided between the head of the bolt 4 and the external copper nose.

[0041] By adopting the above technical solution, the spring washer 5 can effectively improve the stability of the bolt connection, making it less likely to loosen.

[0042] In the embodiment of the present utility model, the wiring module 2 is made of insulating material.

[0043] By adopting the above technical solution, safety can be effectively improved.

[0044] In the embodiment of the utility model, a plurality of hollow grooves 23 are formed on the wiring module 2 outside the receiving groove 20 .

[0045] By adopting the above technical solution, the weight of the wiring module 2 can be effectively reduced, making it more lightweight.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wiring mechanism for a fuse-type disconnector, characterized in that: include, A housing (1), wherein a fuse (10) and contact seats (11) located at both ends of the fuse (10) are installed in the housing (1), a connecting plate (12) protruding from the contact seat (11), and a through hole (120) formed on the connecting plate (12); A wiring module (2), wherein the wiring module (2) is provided with a receiving groove (20) for receiving the nut (3) and limiting rotation; Bolts (4); The housing (1) is provided with a mounting hole (13) for mounting the wiring module (2); when the wiring module (2) is mounted in the mounting hole (13), the connecting plate (12) extends to the upper side of the wiring module (2); the wiring module (2) and the mounting hole (13) are detachably connected; the lower end of the bolt (4) passes through an external copper nose, a through hole (120), and is threadedly connected to a nut (3) in the wiring module (2) and extends into the receiving groove (20).

2. A connection mechanism for a fuse-type disconnector according to claim 1, characterized in that: A buckle (21) is provided on the outer wall of the wiring module (2), and a buckle groove (130) matching the buckle (21) is provided on the inner wall of the mounting hole (13).

3. A connection mechanism for a fuse-type disconnector according to claim 1, characterized in that: The inner wall of the receiving groove (20) is designed to be hexagonal and corresponds to the outer wall of the nut (3); a support bar (22) is extended upward along the hexagon of the inner wall at the bottom of the receiving groove (20); the top end of the support bar (22) abuts against the lower side of the nut (3); and the distance between the top end of the support bar (22) and the notch of the receiving groove (20) is not less than the height of the nut (3).

4. A connection mechanism for a fuse-type disconnector according to claim 1, characterized in that: A spring washer (5) is provided between the head of the bolt (4) and the external copper nose.

5. A connection mechanism for a fuse-type disconnector according to claim 1, characterized in that: The wiring module (2) is made of insulating material.

6. A connection mechanism for a fuse-type disconnector according to claim 1, characterized in that: The wiring module (2) is provided with a plurality of hollow grooves (23) on the outside of the accommodating groove (20).

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