Breaker mechanical interlocking device

Abstract

The utility model discloses a breaker mechanical interlocking device which comprises a shell, a sliding groove is formed in the shell in a penetrating mode, an interlocking piece used for locking a breaker is installed in the sliding groove in a sliding mode, a limiting groove and a penetrating hole are formed in the shell, a nut is installed in the limiting groove, and the middle of the nut is in threaded connection with a screw rod. One end of the screw penetrates through the penetrating hole and extends into the sliding groove, a rotary knob used for pressing the interlocking piece is arranged at one end of the screw, an empty groove is formed in the middle of the interlocking piece, the screw is located in the empty groove, a plurality of protrusions are symmetrically arranged on the interlocking piece, and grooves matched with the protrusions are formed in the inner side wall of the sliding groove. The circuit breakers on the two sides of the shell cannot be switched on at the same time through the arranged interlocking piece so as to achieve the purpose of interlocking, the interlocking piece can be pre-fixed through the arranged protrusion and the groove, the interlocking piece is prevented from moving when the rotary knob is rotated, and a worker can conveniently know whether the interlocking piece is pushed in place or not.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit breaker accessory technical field, concretely is a kind of circuit breaker mechanical interlock device. BACKGROUND

[0002] Two power supplies are used in many important power supply occasions, one is main power supply, and the other is standby power supply, in the case where one of them is powered off, the other power supply can be connected to the system to continue to supply power to the system, to minimize the power-off time, to ensure normal operation of equipment, only one power supply can be used, therefore mechanical interlock device is usually used to lock circuit breaker to ensure that only one set of circuit breaker is in closing state.

[0003] The existing mechanical interlock device can usually be fixed only by screw, and the installation method is single, which cannot well adapt to various use scenarios, and when the interlocking sheet is adjusted and fixed, the interlocking sheet is easy to move, affecting the interlocking effect. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of circuit breaker mechanical interlock device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of circuit breaker mechanical interlock device, including shell, the shell is equipped with sliding slot, the inside of the sliding slot is slidably installed with the interlocking sheet for locking circuit breaker, the inside of the shell is equipped with limiting slot and perforation, the inside of the limiting slot is installed with nut, the middle portion of the nut is threadedly connected with screw rod, the one end of the screw rod extends to the inside of the sliding slot through the perforation, the one end of the screw rod is equipped with knob for pressing the interlocking sheet, the middle portion of the interlocking sheet is equipped with hollow slot, the screw rod is located in the inside of the hollow slot, the interlocking sheet is equipped with multiple protrusions symmetrically, the inner side wall of the sliding slot is equipped with recess that cooperates with the protrusion, the rear side of the shell is equipped with fixed buckle, the rear side of the shell is also installed with movable buckle, the shell is equipped with fixed hole symmetrically, the movable buckle is equipped with through hole corresponding to the fixed hole, the front of the shell is equipped with opening, the knob extends to the outside of the shell through the opening.

[0006] As a preferred scheme of the utility model, the both ends of the interlocking sheet are equipped with curved portion, the both sides of the shell are equipped with notch, and the notch is communicated with the sliding slot.

[0007] As a preferred scheme of the utility model, the outside of the knob is equipped with anti-skid line.

[0008] As a preferred scheme of the utility model, the width of the hollow slot is greater than the diameter of the screw rod, and the diameter of the knob is greater than the width of the hollow slot.

[0009] As a preferred scheme of the utility model, the perforation is communicated with the sliding groove and the limiting groove.

[0010] As a preferred scheme of the utility model, the shell comprises a left shell body and a right shell body which are mutually clamped, and the left shell body and the right shell body are fixed through screws.

[0011] Compared with the prior art, the utility model has the advantages that the utility model is simple in structure and convenient to operate, the interlocking piece is pre-fixed through the setting of the convex and the groove, movement of the interlocking piece is prevented when the knob is rotated, whether the interlocking piece is pushed to the position is also convenient for the staff to understand, the shell can be installed in multiple ways through the setting of the fixing hole, the movable buckle and the fixed buckle, different use scenarios are adapted to, and practicality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0013] Figure 2 It is an explosion view of the utility model;

[0014] Figure 3 It is a structure schematic view of the rear side of the utility model;

[0015] Figure 4 It is a structure schematic view of the left shell body of the utility model;

[0016] Figure 5 It is a structure schematic view when the circuit breaker is locked.

[0017] In the drawing: 1, shell; 101, left shell body; 102, right shell body; 2, movable buckle; 3, fixing hole; 4, interlocking piece; 5, knob; 6, anti-skid line; 7, notch; 8, sliding groove; 9, convex; 10, curved part; 11, empty groove; 12, screw rod; 13, nut; 14, perforation; 15, limiting groove; 16, through hole; 17, fixed buckle; 18, groove; 19, opening. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] See also Figures 1 to 5 The utility model provides a technical solution: a mechanical interlocking device for a circuit breaker, comprising a housing 1, a slide groove 8 being provided through the housing 1, an interlocking piece 4 for locking the circuit breaker being slidably installed inside the slide groove 8, the interlocking piece 4 being used to block the handle of the circuit breaker so that the circuit breaker cannot be opened or closed, thereby locking the circuit breaker. When the interlocking piece 4 is on the left side of the housing 1, the circuit breaker on the left side of the housing 1 is locked. When the interlocking piece 4 is on the right side of the housing 1, the circuit breaker on the right side of the housing 1 is locked, thereby preventing the circuit breakers on both sides of the housing 1 from being closed at the same time, thereby achieving the purpose of interlocking. The interior of the housing 1 A limiting groove 15 and a through-hole 14 are provided. The limiting groove 15 is used to limit the nut 13 to prevent the nut 13 from moving. A nut 13 is installed inside the limiting groove 15. The middle part of the nut 13 is threadedly connected with a screw 12. One end of the screw 12 passes through the through-hole 14 and extends to the inside of the slide 8. One end of the screw 12 is provided with a knob 5 for tightening the interlocking piece 4. Turning the knob 5 will drive the screw 12 to rotate. Since the screw 12 is threadedly connected to the nut 13, the screw 12 will drive the knob 5 to move. The knob 5 moves to tighten the interlocking piece 4 and fix the interlocking piece 4. An empty groove 11 is provided in the middle of the interlocking piece 4. The rod 12 is located inside the empty slot 11, and a plurality of protrusions 9 are symmetrically provided on the interlocking piece 4. The protrusion 9 is a hemispherical structure. The inner wall of the slide groove 8 is provided with a groove 18 that matches the protrusion 9. The protrusion 9 cooperates with the groove 18 to pre-fix the interlocking piece 4 to prevent the interlocking piece 4 from moving when the knob 5 is turned and pressed. When the protrusion 9 is stuck in the groove 18, a clicking sound is made, which makes it convenient for the staff to understand whether the interlocking piece 4 is pushed into place. A fixed buckle 17 is provided on the rear side of the shell 1, and an active buckle 2 is also installed on the rear side of the shell 1. The outer shell 1 is made The shell 1 can be installed on the electrical rail, and the fixing holes 3 are provided so that the shell 1 can be installed with screws, so that the shell 1 can be installed in a variety of ways to adapt to different usage scenarios and improve its practicality. The fixing holes 3 are symmetrically provided on the shell 1, and the movable buckle 2 is provided with a through hole 16 corresponding to the fixing hole 3. The through hole 16 is convenient for the screw passing through the fixing hole 3 to pass through the movable buckle 2. An opening 19 is provided on the front of the shell 1, and the opening 19 is connected to the slide groove 8. The opening 19 is provided to facilitate the knob 5 to contact the interlocking piece 4, and the knob 5 extends to the outside of the shell 1 through the opening 19.

[0020] Among them, both ends of the interlocking piece 4 are provided with a bent portion 10, which makes it convenient for the staff to move the interlocking piece 4. Notches 7 are provided on both sides of the shell 1, and the notches 7 are used to accommodate the bent portion 10. When the bent portion 10 is in contact with the shell 1, the bent portion 10 will not protrude from both sides of the shell 1, avoiding interference with the opening and closing of the circuit breaker, and the notch 7 is connected to the slide groove 8.

[0021] The outer side of the knob 5 is provided with anti-skid lines 6, so that the knob 5 will not slip when being rotated by hand.

[0022] The width of the empty slot 11 is greater than the diameter of the screw rod 12, so that the interlocking piece 4 will not be blocked by the screw rod 12 when sliding, and the diameter of the knob 5 is greater than the width of the empty slot 11, so as to press the interlocking piece 4 by the knob 5.

[0023] The perforation 14 is in communication with the sliding groove 8 and the limiting groove 15.

[0024] The shell 1 comprises a left shell body 101 and a right shell body 102 which are engaged with each other, and the left shell body 101 and the right shell body 102 are fixed by screws, so as to ensure the firm connection between the left shell body 101 and the right shell body 102.

[0025] Specifically, during installation, according to the use scene, the shell 1 can be fixed on the electrical guide rail through the fixed buckle 17 and the movable buckle 2, or the shell 1 can be fixed in a suitable position by screwing the screws through the fixed holes 3.

[0026] In the description of the present application, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] In addition, the terms "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated, so that the features limited by "first", "second", "third", "fourth" can explicitly or implicitly include at least one of the features.

[0028] In the utility model, unless another definite provision and limitation, the term "installation", "arrangement", "connection", "fixation", "screw connection" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element inside's intercommunication or two element's mutual action relation, unless another definite limitation, for the ordinary skill of the art, can understand the above-mentioned term in the utility model specific meaning according to specific circumstances.

[0029] Although the embodiments of the utility model have been shown and described, it will be appreciated by those of ordinary skill in the art that various changes, modifications, alternatives, and variations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A circuit breaker mechanical interlocking device, comprising a housing (1), characterized in that: The housing (1) is provided with a slide groove (8), and an interlocking piece (4) for locking the circuit breaker is slidably installed inside the slide groove (8). The housing (1) is provided with a limit groove (15) and a through hole (14). A nut (13) is installed inside the limit groove (15). The middle part of the nut (13) is threadedly connected with a screw rod (12). One end of the screw rod (12) passes through the through hole (14) and extends to the inside of the slide groove (8). One end of the screw rod (12) is provided with a knob (5) for pressing the interlocking piece (4). The middle part of the interlocking piece (4) is provided with an empty groove (11). The screw rod ( 12) is located inside the empty slot (11), a plurality of protrusions (9) are symmetrically provided on the interlocking piece (4), a groove (18) matching with the protrusion (9) is provided on the inner wall of the slide groove (8), a fixing buckle (17) is provided on the rear side of the shell (1), and a movable buckle (2) is also installed on the rear side of the shell (1), a fixing hole (3) is symmetrically provided on the shell (1), and a through hole (16) corresponding to the fixing hole (3) is provided on the movable buckle (2), an opening (19) is provided on the front side of the shell (1), and the knob (5) extends through the opening (19) to the outside of the shell (1).

2. A circuit breaker mechanical interlocking device according to claim 1, characterized in that: Both ends of the interlocking piece (4) are provided with a bent portion (10), and both sides of the housing (1) are provided with a notch (7), and the notch (7) is communicated with the slide groove (8).

3. A circuit breaker mechanical interlocking device according to claim 1, characterized in that: The outer side of the knob (5) is provided with anti-slip lines (6).

4. A circuit breaker mechanical interlocking device according to claim 1, characterized in that: The width of the empty slot (11) is greater than the diameter of the screw rod (12), and the diameter of the knob (5) is greater than the width of the empty slot (11).

5. The circuit breaker mechanical interlocking device according to claim 1, characterized in that: The through hole (14) is communicated with both the slide groove (8) and the limiting groove (15).

6. A circuit breaker mechanical interlocking device according to claim 1, characterized in that: The housing (1) comprises a left housing (101) and a right housing (102) that are engaged with each other, and the left housing (101) and the right housing (102) are fixed by screws.

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