Explosion-proof isolating switch

Abstract

The invention relates to an explosion-proof isolating switch, which comprises a box body, a binding post, a box cover, a sliding rod, a metal sheet, a rotating handle and a first limiting block, and is characterized in that the box body is provided with a mounting groove and a threading hole, and the threading hole is communicated with the mounting groove; the number of the binding posts is an even number, every two binding posts form a group, the multiple binding posts are spaced in the first direction, and each binding post corresponds to a threading hole; the box cover is buckled on the box body; the sliding rod is movably arranged on the box body in the second direction, the second direction is perpendicular to the first direction, the metal sheet is arranged on the sliding rod, and the metal sheet is located in the mounting groove; the rotating handle is rotatably arranged on the box cover between an open position and a closed position, the rotating handle is connected with the sliding rod, at the closed position, the metal sheets abut against the two binding posts of each group, and at the open position, the metal sheets are separated from the binding posts; the first limiting block is arranged on the box cover, and the first limiting block abuts against the rotating handle at the closing position. The explosion-proof isolating switch is convenient to adjust and operate and high in safety.

Description

Technical Field

[0001] The invention relates to the technical field of isolating switches, and in particular to an explosion-proof isolating switch. Background Art

[0002] The isolating switch is a switch device that has an insulation distance that meets the specified requirements and an obvious disconnection mark between the contacts when in the open position; and can carry the current under normal circuit conditions and the current under abnormal conditions within a specified time when in the closed position. In the related art, for isolating switches with a rotating handle, the switch is opened and closed by rotating the handle, and its structure is relatively complex. It is easy for the rotating handle to rotate excessively, resulting in mechanical extrusion of the switch contacts, which can easily cause damage to the isolating switch. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention provides an explosion-proof isolating switch, which is easy to adjust and has high safety.

[0005] According to an embodiment of the present invention, an explosion-proof isolating switch comprises a box body, a terminal post, a box cover, a slide bar, a metal sheet, a rotating handle and a first limiting block, wherein the box body is provided with a mounting groove and a threading hole, and the threading hole is connected with the mounting groove; the terminal posts have an even number, and every two of the terminal posts form a group, and a plurality of the terminal posts are spaced apart in a first direction, and each of the terminal posts corresponds to one threading hole; the box cover is buckled on the box body; the slide bar is movably provided on the box body along a second direction, and the second direction is perpendicular to the first direction, and the metal sheet is provided on the slide bar, and the metal sheet is located in the mounting groove; the rotating handle is rotatably provided on the box cover between an open position and a closed position, and the rotating handle is connected to the slide bar, and in the closed position, the metal sheet abuts against two of the terminal posts in each group, and in the open position, the metal sheet is spaced apart from the terminal posts; the first limiting block is provided on the box cover, and in the closed position, the first limiting block abuts against the rotating handle.

[0006] The explosion-proof isolating switch of the embodiment of the present invention converts the rotational motion of the rotating handle into the linear motion of the sliding rod, so that the rotating handle is rotated to drive the metal sheet to move horizontally in the left and right directions, thereby realizing the closing and opening of the isolating switch. The operation process is simple and convenient, and the first limit block not only has a prompting function to prompt the operator that the rotating handle has been rotated into place, but also can prevent the rotating handle from continuing to rotate after reaching the closed position, thereby avoiding excessive extrusion of the metal sheet, the terminal post and the wires on the terminal post, thereby improving the safety and service life of the explosion-proof isolating switch.

[0007] In some embodiments, a groove is provided on an end surface of the terminal post in its extension direction away from the box body, and the groove penetrates the terminal post in the thickness direction of the terminal post.

[0008] In some embodiments, a slide groove is provided on the box body, the slide groove is connected to the installation groove, and the slide rod is fitted in the slide groove.

[0009] In some embodiments, the explosion-proof isolating switch further includes a guide rod, which is located between the box body and the box cover, one end of the guide rod is connected to the rotation center of the rotating handle, and the other end of the guide rod is spaced apart from the rotation center of the rotating handle, and a guide groove is provided on the sliding rod, and the other end of the guide rod is engaged in the guide groove.

[0010] In some embodiments, the guide rod includes a first rod segment and a second rod segment, one end of the first rod segment is connected to the rotation center of the rotating handle, the other end of the first rod segment is connected to one end of the second rod segment, the second rod segment is perpendicular to the first rod segment, and the other end of the second rod segment is engaged in the guide groove.

[0011] In some embodiments, the other end of the second rod segment is a cylindrical structure, and the guide groove is a rectangular groove.

[0012] In some embodiments, the explosion-proof isolating switch further includes a second limit block, which is disposed on the box cover. In the disconnected position, the second limit block abuts against the rotating handle.

[0013] In some embodiments, in the closed position, the first limit block abuts against an end of the rotating handle away from its rotation center; in the open position, the second limit block abuts against an end of the rotating handle away from its rotation center.

[0014] In some embodiments, an anti-touch groove is provided on the box cover, and the rotating handle is located in the anti-touch groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an explosion-proof isolating switch according to an embodiment of the present invention;

[0016] Figure 2 is a schematic structural diagram of a box cover, a rotating handle and a guide rod according to an embodiment of the present invention;

[0017] Reference numerals:

[0018] Isolating switch 100;

[0019] Box body 1, mounting groove 11, threading hole 12, slide groove 13, terminal 2, groove 21, box cover 3, anti-touch groove 31, slide rod 4, guide groove 41, metal sheet 5, rotating handle 6, rotating shaft 61, first limit block 7, guide rod 8, first rod segment 81, second rod segment 82, second limit block 9. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0021] like Figure 1 and Figure 2 As shown, the explosion-proof isolating switch 100 according to the embodiment of the present invention comprises a box body 1, a terminal post 2, a box cover 3, a rotating handle 6, a first limit block 7, a sliding rod 4 and a metal sheet 5.

[0022] The box body 1 is provided with a mounting groove 11 and a threading hole 12, and the threading hole 12 is connected to the mounting groove 11. There are an even number of binding posts 2, and every two binding posts 2 form a group. The plurality of binding posts 2 are arranged in a first direction (for example Figure 1 Each terminal 2 has a corresponding threading hole 12. The box cover 3 is buckled on the box body 1. The slide bar 4 is arranged along the second direction (for example, Figure 1 The first position is provided on the box body 1, and the second direction is perpendicular to the first direction. The metal sheet 5 is provided on the slide bar 4, and the metal sheet 5 is located in the mounting groove 11. The rotating handle 6 is rotatably provided on the box cover 3 between the disconnected position and the closed position, and the rotating handle 6 is connected to the slide bar 4. In the closed position, the metal sheet 5 abuts against the two terminals 2 of each group, and in the disconnected position, the metal sheet 5 is spaced apart from the terminals 2. The first limit block 7 is provided on the box cover 3, and in the closed position, the first limit block 7 abuts against the rotating handle 6.

[0023] When using the explosion-proof isolating switch 100 of the embodiment of the present invention, first install the wires, pass the wires through the wire threading holes 12, and wrap the wires around the terminal 2. The metal sheet 5 keeps a distance from the terminal 2, so that the terminal 2 and the metal sheet 5 are in a disconnected state, and then adjust the rotation angle of the rotating handle 6, connect the rotating handle 6 and the slide bar 4, and then fix the box cover 3 and the box body 1, and the installation of the explosion-proof isolating switch 100 is completed.

[0024] When the explosion-proof isolating switch 100 needs to be closed, refer to Figure 1, rotate the rotating handle 6 counterclockwise, thereby driving the metal sheet 5 to move to the right. When the rotating handle 6 is rotated to abut the first limit block 7, the rotating handle 6 is rotated to the closed position, so that the metal sheet 5 abuts against the terminal 2, thereby achieving the conduction of the wires on the two terminals 2 of each group and closing the circuit. When the explosion-proof isolating switch 100 needs to be disconnected, the rotating handle 6 is rotated clockwise, thereby driving the metal sheet 5 to move to the left, so that the metal sheet 5 is separated from the terminal 2, and the circuit is disconnected. When the rotating handle 6 is rotated to the disconnection position, the slide bar 4 and the metal sheet 5 move into place.

[0025] The explosion-proof isolating switch 100 of the embodiment of the present invention converts the rotational motion of the rotating handle 6 into the linear motion of the sliding rod 4, so that the rotating handle 6 is rotated to drive the metal sheet 5 to move horizontally in the left and right directions, thereby realizing the closing and opening of the isolating switch 100. The operation process is simple and convenient, and the first limit block 7 not only has a prompting function, prompting the operator that the rotating handle 6 has been rotated into place, but also can prevent the rotating handle 6 from continuing to rotate after reaching the closed position, thereby avoiding excessive extrusion of the metal sheet 5, the terminal 2 and the wires on the terminal 2, thereby improving the safety and service life of the explosion-proof isolating switch 100.

[0026] Therefore, the explosion-proof isolating switch 100 according to the embodiment of the present invention is easy to adjust and has high safety.

[0027] In some embodiments, a groove 21 is provided on one end face of the terminal 2 which is away from the box body 1 in the extension direction thereof, and the groove 21 penetrates the terminal 2 in the thickness direction of the terminal 2. In the process of winding the wire on the terminal 2, the wire is passed through the groove 21 or passed through multiple times, and then continues to be wound on the terminal 2, thereby increasing the contact area between the terminal 2 and the wire, increasing the multi-dimensional position limitation of the terminal 2 on the wire, ensuring the firmness of the wire installation, preventing the wire and the terminal 2 from loosening after connection, and then improving the safety of the explosion-proof isolating switch 100 of the embodiment of the present invention.

[0028] In some embodiments, a slide groove 13 is provided on the box body 1, the slide groove 13 is connected to the mounting groove 11, and the slide bar 4 is fitted in the slide groove 13. The slide groove 13 forms a limit for the slide bar 4 in the up and down directions, and guides the movement of the slide bar 4, thereby ensuring the stability and accuracy of the rotating handle 6 when driving the slide bar 4 to move, and ensuring the stability and repeatability of the metal sheet 5 when moving left and right, thereby improving the stability and safety of the explosion-proof isolating switch 100 of the embodiment of the present invention.

[0029] The explosion-proof isolating switch 100 of the embodiment of the present invention further includes a guide rod 8, which is located between the box body 1 and the box cover 3, one end of the guide rod 8 is connected to the rotation center of the rotating handle 6, and the other end of the guide rod 8 is spaced from the rotation center of the rotating handle 6, and a guide groove 41 is provided on the slide bar 4, and the other end of the guide rod 8 is fitted in the guide groove 41.

[0030] See also Figure 1 When the rotary handle 6 is rotated counterclockwise, the guide rod 8 rotates counterclockwise synchronously, so that the other end of the guide rod 8 moves downward and to the right. Since the guide groove 41 extends along the first direction, that is, the guide groove 41 extends along the up-down direction, the guide rod 8 pushes the guide groove 41 and the slide bar 4 to move to the right, thereby driving the metal sheet 5 to move to the right. When the rotary handle 6 is rotated to abut the first limit block 7, the rotary handle 6 is rotated to the closed position. When the rotary handle 6 is rotated clockwise, the guide rod 8 rotates clockwise, so that the other end of the guide rod 8 moves upward and to the left. The guide rod 8 pushes the guide groove 41 and the slide bar 4 to move to the left, thereby driving the metal sheet 5 to move to the left, so that the metal sheet 5 is separated from the terminal 2, and the circuit is disconnected.

[0031] The guide rod 8 is located between the box body 1 and the box cover 3. The guide rod 3 is set at the rotation center of the rotating handle. It can convert the rotation movement of the rotating handle 6 into the left and right movement of the sliding rod 4, thereby realizing the interference and separation between the metal sheet 5 and the terminal 2. The guide groove 41 and the guide rod 8 are simple to match, and there is no need to perform operations such as opening holes in the box cover 3, which has the advantages of simple manufacturing and convenient installation.

[0032] Specifically, Figure 2 As shown, the guide rod 8 includes a first rod segment 81 and a second rod segment 82. One end of the first rod segment 81 is connected to the rotation center of the rotating handle 6, and the other end of the first rod segment 81 is connected to one end of the second rod segment 82. The second rod segment 82 is perpendicular to the first rod segment 81, and the other end of the second rod segment 82 is fitted in the guide groove 41. The guide rod 8 has a simple structure and is easy to process and manufacture, which is conducive to reducing the manufacturing cost and difficulty of the explosion-proof isolating switch 100 of the embodiment of the present invention.

[0033] Specifically, the rotating handle 6 has a rotating shaft 61 , which is rotatably mounted on the box cover 3 , and the one end of the first rod segment 81 is disposed on the rotating shaft 61 .

[0034] Specifically, the other end of the second rod segment 82 is a cylindrical structure, and the guide groove 41 is a rectangular groove. When the other end of the cylindrical second rod segment 82 cooperates with the rectangular groove, it can rotate in the rectangular groove. The smooth arc surface of the other end of the second rod segment 82 is conducive to reducing the friction between the second rod segment 82 and the inner wall surface of the guide groove 41, so that the movement of the guide rod 8 is smoother and jamming is avoided, thereby making the movement of the rotating handle 6 and the metal sheet 5 smoother, which is conducive to improving the operational convenience and reliability of the explosion-proof isolating switch 100 of the embodiment of the present invention.

[0035] The explosion-proof isolating switch 100 of the embodiment of the present invention further includes a second limit block 9, which is arranged on the box cover 3. In the disconnected position, the second limit block 9 abuts against the rotating handle 6. The second limit block 9 limits the clockwise movement of the rotating handle 6, prompting the operator that the rotating handle 6 has been rotated to the right position, and can prevent the rotating handle 6 from continuing to rotate after reaching the disconnected position, avoiding excessive extrusion between the metal sheet 5 and the wall of the mounting groove 11, thereby further improving the safety and service life of the explosion-proof isolating switch 100.

[0036] Specifically, in the closed position, the first limit block 7 abuts against the end of the rotating handle 6 away from its rotation center; in the open position, the second limit block 9 abuts against the end of the rotating handle 6 away from its rotation center. This makes it easier for people to apply force to the middle of the rotating handle 6 to push the rotating handle 6 to rotate, further improving the operating convenience of the rotating handle 6.

[0037] In some embodiments, the box cover 3 is provided with an anti-touch groove 31, and the rotating handle 6 is located in the anti-touch groove 31. The rotating handle 6 is embedded in the anti-touch groove 31, so that the rotating handle 6 does not leak out of the box cover 3, thereby reducing the possibility of the rotating handle 6 being accidentally touched, and further improving the safety of the explosion-proof isolating switch 100 of the embodiment of the present invention.

[0038] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0043] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An explosion-proof isolating switch (100), characterized in that: include: A box body (1), wherein the box body (1) is provided with a mounting groove (11) and a threading hole (12), and the threading hole (12) is communicated with the mounting groove (11); Binding posts (2), the binding posts (2) having an even number, each two of the binding posts (2) forming a group, the plurality of binding posts (2) being spaced apart in a first direction, and each of the binding posts (2) corresponding to one of the threading holes (12); A box cover (3), wherein the box cover (3) is buckled onto the box body (1); a slide bar (4), the slide bar (4) being movably arranged on the box body (1) along a second direction, the second direction being perpendicular to the first direction; A metal sheet (5), the metal sheet (5) being arranged on the slide bar (4), and the metal sheet (5) being located in the installation groove (11); a rotating handle (6), the rotating handle (6) being rotatably arranged on the box cover (3) between an open position and a closed position, the rotating handle (6) being connected to the slide bar (4), the metal sheet (5) being in contact with the two terminals (2) of each group in the closed position, and the metal sheet (5) being spaced apart from the terminals (2) in the open position; and A first limit block (7), wherein the first limit block (7) is arranged on the box cover (3); in the closed position, the first limit block (7) abuts against the rotating handle (6).

2. The explosion-proof isolating switch (100) according to claim 1, characterized in that: The terminal post (2) is provided with a groove (21) on an end surface thereof which faces away from the box body (1) in its extension direction, and the groove (21) penetrates the terminal post (2) in the thickness direction of the terminal post (2).

3. The explosion-proof isolating switch (100) according to claim 1, characterized in that: The box body (1) is provided with a slide groove (13), the slide groove (13) is communicated with the installation groove (11), and the slide rod (4) is fitted in the slide groove (13).

4. The explosion-proof isolating switch (100) according to claim 1, characterized in that: The invention further comprises a guide rod (8), wherein the guide rod (8) is located between the box body (1) and the box cover (3), one end of the guide rod (8) is connected to the rotation center of the rotating handle (6), and the other end of the guide rod (8) is spaced from the rotation center of the rotating handle (6), and a guide groove (41) is provided on the sliding rod (4), and the other end of the guide rod (8) is fitted in the guide groove (41).

5. The explosion-proof isolating switch (100) according to claim 4, characterized in that: The guide rod (8) comprises a first rod segment (81) and a second rod segment (82), one end of the first rod segment (81) is connected to the rotation center of the rotating handle (6), the other end of the first rod segment (81) is connected to one end of the second rod segment (82), the second rod segment (82) is perpendicular to the first rod segment (81), and the other end of the second rod segment (82) is fitted in the guide groove (41).

6. The explosion-proof isolating switch (100) according to claim 5, characterized in that: The other end of the second rod segment (82) is a cylindrical structure, and the guide groove (41) is a rectangular groove.

7. The explosion-proof isolating switch (100) according to claim 6, characterized in that: It further comprises a second limit block (9), wherein the second limit block (9) is arranged on the box cover (3), and in the disconnected position, the second limit block (9) abuts against the rotating handle (6).

8. The explosion-proof isolating switch (100) according to claim 7, characterized in that: In the closed position, the first limit block (7) abuts against the end of the rotating handle (6) away from its rotation center; in the open position, the second limit block (9) abuts against the end of the rotating handle (6) away from its rotation center.

9. The explosion-proof isolating switch (100) according to claim 1, characterized in that: The box cover (3) is provided with an anti-touch groove (31), and the rotating handle (6) is located in the anti-touch groove (31).

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