Electromagnetic dual-power change-over switch

Abstract

The utility model discloses an electromagnetic type dual-power change-over switch, which relates to the technical field of change-over switches and comprises a switch main body and a plurality of connecting electrode plates arranged on the two sides of the switch main body, two connecting rods are fixedly arranged on the side wall of each connecting electrode plate, a limiting ring is fixedly arranged through the connecting rods, and a hexagon socket screw is arranged in the limiting ring in a threaded and penetrating manner. An outer ring is fixedly arranged on the outer wall of the limiting ring, a positioning block is arranged on the side portion of the hexagon socket screw in a sliding and penetrating mode, a plurality of positioning grooves which are symmetrically formed in a surrounding mode are formed in the inner wall of the outer ring, the end of the positioning block is inserted into the positioning grooves, and a pressing and separating mechanism used for limiting the position of the positioning block is arranged in a groove hole of the hexagon socket screw. According to the utility model, after the cable is extruded and positioned by the bolt assembly, the position of the bolt assembly is limited, the bolt is prevented from loosening as much as possible, the stable connection between the cable and the change-over switch is ensured, and the use stability of the electromagnetic dual-power change-over switch is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of transfer switches, in particular to an electromagnetic dual-power transfer switch. Background Art

[0002] An electromagnetic dual power transfer switch is an electrical device that can automatically switch between two independent power sources. It uses the electromagnetic force generated by the electromagnetic coil to drive the movement of the contacts, thereby achieving power switching.

[0003] After searching, the patent document with announcement number CN204516635U discloses a dual power conversion switch. This conversion switch adopts the structure of the utility model, and a fixing structure (i.e., a limit groove and a limit cover) for fixing the operating handle is set on the cover, which is convenient for storage; when the operating handle is idle, the grip of the operating handle is inserted into the limit groove, and the shaft of the operating handle is inserted into the notch and extends from the notch. In this way, after the operating handle is fixed, the end of the shaft is exposed outside the cover, which is convenient for taking the operating handle when in use. At the same time, the limit cover can further fix the operating handle to prevent the operating handle from being lost.

[0004] However, when the switch is connected to the cable, the cable is inserted into the corresponding connection slot and then tightened with a screw, which has a poor locking effect. When the switch is continuously used, the screw may become loose and the cable may fall off. Utility Model Content

[0005] In view of the above problems existing in the existing electromagnetic dual power transfer switch, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide an electromagnetic dual power transfer switch, which solves the problem that when cables are locked with screws, the screws may become loose, thereby affecting the connection stability between the cables and the switch.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] An electromagnetic dual power transfer switch comprises a switch body and a plurality of connecting electrode sheets arranged on both sides of the switch body, two connecting rods being fixedly provided on the side walls of the connecting electrode sheets, and a limiting ring being fixedly provided via the connecting rods, the internal threads of the limiting ring being threaded with a hexagon socket bolt, the outer wall of the limiting ring being fixed with an outer ring, the side of the hexagon socket bolt being slidably threaded with a positioning block, the inner wall of the outer ring being provided with a plurality of positioning grooves arranged symmetrically around the inner wall, the ends of the positioning blocks being inserted into the positioning grooves;

[0009] A pressing and separating mechanism for limiting the position of the positioning block is provided in the slotted hole of the hexagon socket bolt.

[0010] Preferably, the pressing and separating mechanism includes a pressure plate, which is located in the slot hole of the hexagon socket bolt, and a groove is provided at the end of the hexagon socket bolt. A first spring is fixed between the pressure plate and the inner wall of the slot hole of the hexagon socket bolt, and a push plate is fixed at the bottom of the pressure plate. The positioning block slides through the side of the groove and contacts and cooperates with the push plate.

[0011] Preferably, a sliding hole is provided on the side of the groove, and the positioning block is slidably arranged in the sliding hole.

[0012] Preferably, a strip-shaped hole is provided inside the positioning block, a support rod is slidably inserted into the strip-shaped hole, the support rod is fixed in the groove, and a second spring is fixed between the support rod and the inner wall of the strip-shaped hole.

[0013] Furthermore, the side of the positioning block contacting the push plate is arranged in an inclined surface.

[0014] Preferably, a vertical hole is formed on one side of the groove close to the inner slot hole of the hexagon socket bolt, and the push plate is slidably disposed in the vertical hole.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. The utility model is provided with a connecting electrode sheet, a connecting rod, a limiting ring, an outer ring, a hexagon socket bolt, a positioning block and a positioning groove. After the cable is squeezed and positioned by the bolt assembly, the position of the bolt assembly can be restricted to avoid loosening of the bolt as much as possible, thereby ensuring a stable connection between the cable and the transfer switch and ensuring stable use of the electromagnetic dual power transfer switch.

[0017] 2. The utility model is provided with a hexagon socket bolt, a pressing and separating mechanism, a positioning block, a positioning groove, a support rod, a first spring and a second spring. When the hexagon socket bolt needs to be rotated, the positioning block can be moved away from the positioning groove, thereby ensuring that the hexagon socket bolt can be stably driven and facilitating the connection of cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 For the utility model Figure 1 A magnified schematic diagram of part A;

[0021] Figure 3 For the utility model Figure 2 An enlarged schematic diagram of part B;

[0022] Figure 4 It is a side sectional view of the hexagon socket bolt of the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the positioning block of the utility model.

[0024] Description of reference numerals:

[0025] 1. Switch body; 2. Connecting electrode sheet; 3. Connecting rod; 4. Limiting ring; 5. Hexagon socket bolt; 6. Outer ring; 7. Positioning block; 8. Positioning groove; 9. Pressure plate; 10. First spring; 11. Push plate; 12. Support rod; 13. Second spring. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] The embodiment of the utility model discloses an electromagnetic dual-power transfer switch.

[0028] Example 1

[0029] The utility model provides Figure 1-5 The electromagnetic dual power conversion switch shown includes a switch body 1 and a plurality of connecting electrode sheets 2 arranged on both sides of the switch body 1. Two connecting rods 3 are fixed to the side walls of the connecting electrode sheets 2, and a limiting ring 4 is fixed together through the connecting rods 3. The internal thread of the limiting ring 4 is penetrated by a hexagon socket bolt 5. The outer wall of the limiting ring 4 is fixed with an outer ring 6. The side of the hexagon socket bolt 5 is slidably penetrated by a positioning block 7. The inner wall of the outer ring 6 is provided with a plurality of positioning grooves 8 arranged in a symmetrical manner. The end of the positioning block 7 is inserted into the positioning groove 8.

[0030] Before using the swivel switch, multiple cables are connected to the transfer switch. First, the connecting end of the cable is passed through the limiting ring 4 and inserted into the connecting electrode sheet 2. Then, the connecting end is passed through the limiting ring 4 again. Then, the hexagon socket bolt 5 can be rotated so that the hexagon socket bolt 5 squeezes the cable during the rotation process, so that the outer wall of the cable can be stably set in the limiting ring 4. Then, the position of the hexagon socket bolt 5 is determined by the setting of the positioning block 7 and the positioning groove 8 to ensure that the cable and the switch body 1 will not fall off due to the loosening of the hexagon socket bolt 5 when the switch is in use, thereby ensuring that the electromagnetic dual-power swivel switch can be used stably for a long time.

[0031] Example 2

[0032] Example 2 is based on Example 1. In order to separate the positioning block 7 from the positioning groove 8 when the hexagon socket bolt 5 rotates without affecting the rotation of the hexagon socket bolt 5, Figure 2-5 As shown, a pressing and separating mechanism for limiting the position of the positioning block 7 is provided in the slot of the hexagon socket bolt 5, and the pressing and separating mechanism includes a pressing plate 9, which is located in the slot of the hexagon socket bolt 5, and a groove is provided at the end of the hexagon socket bolt 5, and a sliding hole is provided on the side of the groove. The positioning block 7 is slidably arranged in the sliding hole, and a first spring 10 is fixed between the pressing plate 9 and the inner wall of the slot of the hexagon socket bolt 5. A push plate 11 is fixedly provided at the bottom of the pressing plate 9, and a vertical hole is provided on one side of the groove close to the internal slot of the hexagon socket bolt 5. The push plate 11 is slidably arranged in the vertical hole, and the positioning block 7 is slidably penetrated through the side of the groove and contacts with the push plate 11. The side of the positioning block 7 contacting the push plate 11 is arranged with an inclined surface;

[0033] A strip-shaped hole is provided inside the positioning block 7 , and a support rod 12 is slidably passed through the strip-shaped hole. The support rod 12 is fixed in the groove, and a second spring 13 is fixed between the support rod 12 and the inner wall of the strip-shaped hole.

[0034] When the hexagon socket bolt 5 is in a normal state, the end of the positioning block 7 is located outside the groove. When the hexagonal wrench is inserted into the slot of the hexagon socket bolt 5, the pressure plate 8 is pushed and drives the push plate 11 to move downward. At this time, the push plate 11 gradually moves away from the inclined surface of the positioning block 7, so that the positioning block 7 can be supported by the support rod 12 and is restored by the elastic force of the second spring 13 to move laterally, and finally move into the groove. At this time, the hexagon socket bolt 5 can be rotated stably. After the hexagon socket bolt 5 is rotated and the cable is locked, the pressure plate 9 is released. At this time, under the elastic force of the first spring 10, the pressure plate 9 drives the push plate 11 to push the positioning block 7, so that the positioning block 7 is inserted into the positioning groove 8 to determine the position of the hexagon socket bolt 5, thereby completing the stable connection between the cable and the switch body 1.

[0035] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An electromagnetic dual power conversion switch, comprising a switch body (1) and a plurality of connecting electrode sheets (2) arranged on both sides of the switch body (1), characterized in that: Two connecting rods (3) are fixedly provided on the side wall of the connecting electrode sheet (2), and a limiting ring (4) is fixedly provided through the connecting rod (3); a hexagon socket bolt (5) is passed through the internal thread of the limiting ring (4); an outer ring (6) is fixedly provided on the outer wall of the limiting ring (4); a positioning block (7) is slidably passed through the side of the hexagon socket bolt (5); a plurality of positioning grooves (8) arranged symmetrically around the inner wall of the outer ring (6) are provided; and the ends of the positioning blocks (7) are inserted into the positioning grooves (8); A pressing and separating mechanism for limiting the position of the positioning block (7) is provided in the slotted hole of the hexagon socket bolt (5).

2. The electromagnetic dual power transfer switch according to claim 1, characterized in that: The pressing and separating mechanism includes a pressing plate (9), the pressing plate (9) is located in the slot hole of the hexagon socket bolt (5), a groove is provided at the end of the hexagon socket bolt (5), a first spring (10) is fixed between the pressing plate (9) and the inner wall of the slot hole of the hexagon socket bolt (5), a push plate (11) is fixed at the bottom of the pressing plate (9), and the positioning block (7) is slidably provided on the side of the groove and contacts and cooperates with the push plate (11).

3. The electromagnetic dual power transfer switch according to claim 2, characterized in that: A sliding hole is provided on the side of the groove, and the positioning block (7) is slidably arranged in the sliding hole.

4. The electromagnetic dual power transfer switch according to claim 2, characterized in that: A strip-shaped hole is provided inside the positioning block (7), a support rod (12) is slidably inserted into the strip-shaped hole, the support rod (12) is fixed in the groove, and a second spring (13) is fixed between the support rod (12) and the inner wall of the strip-shaped hole.

5. The electromagnetic dual power transfer switch according to claim 1, characterized in that: The side of the positioning block (7) that contacts the push plate (11) is arranged in an inclined surface.

6. The electromagnetic dual power transfer switch according to claim 2, characterized in that: A vertical hole is provided on one side of the groove close to the inner slot of the hexagon socket bolt (5), and the push plate (11) is slidably arranged in the vertical hole.

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