Isolation grounding interlocking mechanism

Abstract

The utility model provides an isolation grounding interlocking mechanism comprising an operation baffle plate which is movably installed on a switch body and is provided with a first protruding block which is matched with an isolation baffle plate for limiting and a second protruding block which is matched with a grounding baffle plate for limiting; the isolation baffle is fixed on the isolation operation shaft, and the isolation baffle is provided with a first blocking position which abuts against the first protruding block in a matched mode when the isolation switch is in a closed state so that the operation baffle can be locked at the first position; the grounding baffle plate is fixed on the grounding operation shaft and rotates in linkage with the grounding operation shaft, and the grounding baffle plate is provided with a second blocking position which abuts against the second protruding block in a matched mode when the grounding switch is in a closed state so that the grounding baffle plate can be locked at the second position; when the operation baffle is in the middle position, the two sides of the operation baffle shield the grounding operation hole and the isolation operation hole respectively. At the first position, the operation baffle exposes the isolation operation hole and shields the grounding operation hole; and at the second position, the operation baffle shields the isolation operation hole and exposes the grounding operation hole.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to an isolation grounding interlocking mechanism. Background Art

[0002] The existing three-position isolating and grounding switch has three switch states, namely, the isolating switch and the grounding switch are both in the open state; the isolating switch is in the closed state and the grounding switch is in the open state; the isolating switch is in the open state and the grounding switch is in the closed state. If human error occurs, it will affect the equipment and personal safety. Utility Model Content

[0003] To this end, the utility model provides an isolation and grounding interlocking mechanism, including an operating baffle, an isolation baffle and a grounding baffle, the operating baffle being movably mounted on the switch body, and having a first protrusion that cooperates with the isolation baffle to limit the position, and a second protrusion that cooperates with the grounding baffle to limit the position, the operating baffle having an intermediate position, and a first position and a second position that move toward both sides relative to the intermediate position respectively; the isolation baffle is fixed on the isolation operating shaft and rotates in conjunction with the isolation operating shaft, and the isolation baffle has a function of cooperating with the first protrusion to abut against the isolation switch when the isolation switch is in a closed state, so that the operating baffle is locked in the middle position. A first blocking position of the first position; a grounding baffle, fixed on the grounding operating shaft and rotating in conjunction with the grounding operating shaft, the grounding baffle having a second blocking position that cooperates with the second protrusion to lock the grounding baffle in the second position when the grounding switch is in a closed state; wherein, in the middle position, the two sides of the operating baffle respectively block the grounding operating hole and the isolation operating hole; in the first position, the operating baffle exposes the isolation operating hole and blocks the grounding operating hole; in the second position, the operating baffle blocks the isolation operating hole and exposes the grounding operating hole.

[0004] It also includes a positioning structure for keeping the operating baffle in the middle position, the positioning structure includes: a positioning plate, arranged on the operating baffle, which has a connecting plate fixed to the back of the operating baffle, and a slide plate bent and connected to the connecting plate; two springs, respectively located on both sides of the slide plate.

[0005] The slide plate is formed with a notch groove, the switch body is formed with a connecting shaft inserted into the notch groove and extending toward two sides of the slide plate, and the two springs are respectively sleeved on the connecting shafts on two sides of the slide plate.

[0006] A U-shaped mounting plate is fixed on the switch body, and two side plates of the U-shaped mounting plate are respectively formed with through holes for the connecting shaft to be correspondingly inserted.

[0007] A guide and limit structure is provided between the operating baffle and the switch body. The guide and limit structure comprises an elongated hole formed on the operating baffle and a limit block extending into the elongated hole and fixed to the switch body.

[0008] The limiting block is a screw.

[0009] The operation baffle is vertically provided with a convex column extending out of the switch body.

[0010] The technical solution of the utility model has the following advantages:

[0011] 1. The isolation and grounding interlocking mechanism provided by the utility model comprises an operating baffle, an isolation baffle and a grounding baffle. The operating baffle is movably mounted on the switch body and has a first protrusion respectively cooperating with the isolation baffle to limit the position, and a second protrusion respectively cooperating with the grounding baffle to limit the position. The operating baffle has an intermediate position, and a first position and a second position respectively moving toward both sides relative to the intermediate position, wherein, in the intermediate position, the two sides of the operating baffle respectively cover the grounding operating hole and the isolation operating hole; in the first position, the operating baffle exposes the isolation operating hole and covers the grounding operating hole, so that the handle can be inserted to close the isolation operating hole. The operating shaft performs a closing operation. When the isolating switch is closed, the isolating baffle rotates with the isolating operating shaft to a first blocking position against the first protrusion, thereby locking the operating baffle in the first position, that is, the grounding operating shaft cannot be closed; in the second position, the operating baffle blocks the isolating operating hole and exposes the grounding operating hole, so that the handle can be inserted to close the grounding operating shaft. When the grounding switch is closed, the grounding baffle rotates with the grounding operating shaft to a second blocking position against the second protrusion, thereby locking the operating baffle in the second position, that is, the isolating operating shaft cannot be closed. The above-mentioned isolation grounding interlocking mechanism has the advantage of a simple structure.

[0012] 2. The isolation grounding interlocking mechanism provided by the utility model includes a positioning structure: a positioning plate, which is arranged on the operating baffle, and has a connecting plate fixed to the back of the operating baffle, and a sliding plate connected to the connecting plate by bending; two springs, which are respectively located on both sides of the sliding plate. When the external force applied to the operating baffle is removed, the sliding plate is kept in the middle position under the elastic force of the springs on both sides, so that the operating baffle is in the middle position, and the two sides of the operating baffle respectively cover the grounding operating hole and the isolation operating hole. The above positioning structure has the advantage of simple structure.

[0013] 3. The isolation grounding interlocking mechanism provided by the utility model has a notch formed on the slide plate. During assembly, two springs are respectively sleeved on the connecting shafts on both sides of the slide plate. The connecting shaft can be inserted into the notch, and the slide plate can slide back and forth along the connecting shaft, so that assembly is quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a three-dimensional diagram of the isolation grounding interlocking mechanism of the utility model (the operating baffle is in the middle position);

[0016] Figure 2 It is a structural schematic diagram of the isolation grounding interlocking mechanism (the operating baffle is in the first position);

[0017] Figure 3 It is a structural schematic diagram of the isolation grounding interlocking mechanism (the operating baffle is in the second position);

[0018] Figure 4 It is a schematic diagram of the assembly of the operating baffle, the positioning plate and the U-shaped mounting plate;

[0019] Figure 5 Schematic diagram of the exploded structure of the operating baffle, positioning plate and U-shaped mounting plate.

[0020] Explanation of the accompanying drawings: 1. switch body; 2. operating baffle; 3. isolation baffle; 4. grounding baffle; 5. first protrusion; 6. second protrusion; 7. isolation operating shaft; 8. grounding operating shaft; 9. positioning plate; 10. connecting plate; 11. slide plate; 12. spring; 13. notch groove; 14. connecting shaft; 15. U-shaped mounting plate; 16. side plate; 17. long hole; 18. limit block; 19. boss. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] Example

[0026] This embodiment provides an isolation grounding interlocking mechanism, such as Figure 1 As shown, it includes an operating baffle 2, an isolation baffle 3, and a grounding baffle 4.

[0027] The operating baffle 2 is movably mounted on the switch body 1. Figure 2 and Figure 3 As shown, it has a first protrusion 5 arranged on its left side and cooperated with the isolation baffle 3 to limit the position, and a second protrusion 6 arranged on its right side and cooperated with the grounding baffle 4 to limit the position. The operating baffle 2 has a middle position, and a first position and a second position that move toward both sides relative to the middle position. A guide limit structure is arranged between the operating baffle 2 and the switch body 1, such as Figure 5 As shown, the guide limit structure includes an elongated hole 17 formed on the operating baffle 2, and a limit block 18 extending into the elongated hole 17 and fixed to the switch body 1. In this embodiment, the limit block 18 is a screw, and a protrusion 19 extending out of the switch body 1 is vertically provided on the operating baffle 2 to facilitate manual operation.

[0028] A positioning structure for keeping the operating baffle 2 at the middle position is provided between the operating baffle 2 and the switch body 1. Figure 4 and Figure 5As shown, the positioning structure includes: a U-shaped mounting plate 15, fixed on the switch body 1, and two side plates 16 of the U-shaped mounting plate 15 are respectively formed with through holes for the two ends of the connecting shaft 14 to be correspondingly inserted. A positioning plate 9 is arranged on the operating baffle 2, and has a connecting plate 10 fixed to the back of the operating baffle 2, and a slide plate 11 bent and connected to the connecting plate 10, the slide plate 11 is formed with a notch groove 13 for the connecting shaft 14 to be inserted, and the slide plate 11 can reciprocate along the axial direction of the connecting shaft 14, and the two springs 12 are respectively sleeved on the connecting shaft 14 on both sides of the slide plate 11, one end of the spring 12 is against the side plate 16, and a gasket is provided between the other end and the slide plate 11.

[0029] The isolation baffle 3 is fixed on the isolation operating shaft 7 and rotates in conjunction with the isolation operating shaft 7. The isolation baffle 3 has a first blocking position that cooperates with the first protrusion 5 when the isolation switch is in a closed state to lock the operating baffle 2 in the first position.

[0030] The grounding baffle 4 is fixed on the grounding operation shaft 8 and rotates in conjunction with the grounding operation shaft 8. The grounding baffle 4 has a second blocking position that cooperates with the second protrusion 6 to abut against the second protrusion 6 when the grounding switch is in a closed state, so that the grounding baffle 4 is locked in the second position.

[0031] The working principle of the isolation grounding interlocking mechanism of the utility model is as follows:

[0032] The operating baffle 2 is located in Figure 1 When in the middle position shown, the two sides of the operating baffle 2 respectively block the grounding operating hole and the isolating operating hole, and at this time, the grounding switch and the isolating switch are both in the open state;

[0033] When the isolating switch needs to be closed, first manually drive the operating baffle 2 to move rightward to the position shown in the figure. Figure 2 The first position shown in the figure exposes the isolation operation hole, the handle is inserted into the isolation operation hole, and the isolation operation shaft 7 is driven to rotate clockwise, so that the isolation switch is closed, and the isolation baffle 3 follows the isolation operation shaft 7 to rotate clockwise to a position abutting against the first protrusion 5, thereby locking the operation baffle 2 in the first position, and the grounding operation hole is blocked by the operation baffle 2, so that the handle cannot be inserted to perform the closing operation. Only when the isolation switch is opened, the operation baffle 2 can be unlocked;

[0034] When the grounding switch needs to be closed, first manually drive the operating baffle 2 to move left to Figure 1The second position shown in the figure exposes the grounding operation hole, and the handle is inserted into the grounding operation hole to drive the grounding operation shaft 8 to rotate counterclockwise, so that the grounding switch is closed, and the grounding baffle 4 follows the isolation operation shaft 7 to rotate counterclockwise to a position abutting against the second protrusion 6, thereby locking the operating baffle 2 in the second position. The isolation operation hole is blocked by the operating baffle 2, so that the handle cannot be inserted to perform the closing operation. The operating baffle 2 can only be unlocked when the grounding switch is opened.

[0035] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. An isolation grounding interlocking mechanism, characterized in that: include: An operating baffle (2) is movably mounted on the switch body (1), and comprises a first protrusion (5) for cooperating with the isolation baffle (3) to limit the position, and a second protrusion (6) for cooperating with the grounding baffle (4) to limit the position, wherein the operating baffle (2) has a middle position, and a first position and a second position respectively movable toward two sides relative to the middle position; An isolation baffle (3) is fixed on the isolation operating shaft (7) and rotates in conjunction with the isolation operating shaft, wherein the isolation baffle (3) has a first blocking position for cooperating with the first protrusion (5) when the isolation switch is in a closed state, so that the operating baffle (2) is locked in the first position; A grounding baffle (4) is fixed on the grounding operation shaft (8) and rotates in conjunction with the grounding operation shaft, wherein the grounding baffle (4) has a second blocking position that cooperates with the second protrusion (6) to abut against the grounding baffle (4) when the grounding switch is in a closed state, so that the grounding baffle (4) is locked in the second position; Wherein, when in the middle position, the two sides of the operating baffle (2) respectively cover the grounding operating hole and the isolation operating hole; when in the first position, the operating baffle (2) exposes the isolation operating hole and covers the grounding operating hole; when in the second position, the operating baffle (2) covers the isolation operating hole and exposes the grounding operating hole.

2. The isolation grounding interlocking mechanism according to claim 1, characterized in that: It also includes a positioning structure for keeping the operating baffle (2) at the middle position, the positioning structure comprising: A positioning plate (9) is arranged on the operating baffle (2), and comprises a connecting plate (10) fixed to the back of the operating baffle (2), and a sliding plate (11) bent and connected to the connecting plate (10); Two springs (12) are respectively located on two sides of the slide plate (11).

3. The isolation grounding interlocking mechanism according to claim 2, characterized in that: The slide plate (11) is formed with a notch groove (13), the switch body (1) is formed with a connecting shaft (14) which is inserted into the notch groove (13) and extends toward two sides of the slide plate (11), and the two springs (12) are respectively sleeved on the connecting shaft (14) on two sides of the slide plate (11).

4. The isolation grounding interlocking mechanism according to claim 3, characterized in that: A U-shaped mounting plate (15) is fixed on the switch body (1), and two side plates (16) of the U-shaped mounting plate (15) are respectively formed with through holes for the connecting shaft (14) to be correspondingly inserted.

5. The isolation grounding interlocking mechanism according to claim 1, characterized in that: A guide limit structure is provided between the operating baffle (2) and the switch body (1), the guide limit structure comprising an elongated hole (17) formed on the operating baffle (2), and a limit block (18) extending into the elongated hole (17) and fixed to the switch body (1).

6. The isolation grounding interlocking mechanism according to claim 5, characterized in that: The limiting block (18) is a screw.

7. The isolation grounding interlocking mechanism according to claim 1, characterized in that: The operating baffle (2) is vertically provided with a convex column (19) extending out of the switch body (1).

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