Medium and high voltage dual power supply fast switching device

Abstract

The utility model provides a medium and high voltage dual power supply rapid switching device, comprising a switch body arranged on a mounting plate and a wiring mechanism arranged on the switch body and connected with a lead, and a side surface of the switch body is provided with a wiring hole matched with an end portion of the lead. The end face of the top end of the switch body is provided with a fixing screw hole penetrating through the interior of the wiring hole, and the wiring mechanism comprises a fixing screw penetrating through the fixing screw hole through threaded connection, a control block fixedly arranged at the end of the fixing screw, and a supporting assembly penetrating through rod bodies at the two ends of the fixing screw and a first through hole formed in the side face of the control block. Rod bodies at the two ends of the fixing screw rod divide the fixing screw rod into two upper half rods and two lower half rods through formed first through holes; the supporting assembly controls the two upper half rods and the two lower half rods to be away from each other. According to the utility model, the wire can be conveniently connected, the stability of wire connection is improved, and the normal use of the switch is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of power switches, in particular to a medium- and high-voltage dual-power supply fast switching device. Background Art

[0002] The purpose of the dual power automatic transfer switch is, in simple terms, to have one main power source and one backup power source. When the main power source suddenly fails or there is a power outage, the dual power transfer switch will automatically switch to the backup power source so that the equipment can still operate normally. Generally, dual power transfer switches are widely used in high-rise buildings, residential areas, hospitals, airports, docks, fire protection, metallurgy, chemical industry, textile and other important places where power outages are not allowed.

[0003] Some existing dual power switches are generally equipped with a main power supply and a backup power supply. When connecting the wires, the main power supply and the backup power supply are generally fixed with bolts, which may cause them to fall off due to external force vibration during use, reducing the stability of the wire connection and affecting the normal use of the switch. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a medium- and high-voltage dual power supply fast switching device, which can conveniently connect wires, improve the stability of wire connection, and ensure the normal use of the switch.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a medium- and high-voltage dual power supply fast switching device, comprising a switch body arranged on a mounting plate, and a wiring mechanism arranged on the switch body and connected to the wire, a wiring hole matching the end of the wire is opened on the side of the switch body, and a fixing screw hole penetrating the inside of the wiring hole is opened on the top end face of the switch body, the wiring mechanism comprises a fixing screw rod passing through the fixing screw hole through a threaded connection, a control block fixedly arranged on the end of the fixing screw rod, and a supporting assembly passing through the rod body at both ends of the fixing screw rod and a first through hole opened on the side of the control block, the rod body at both ends of the fixing screw rod divides the fixing screw into two upper half rods and two lower half rods through the first through hole opened; the supporting assembly controls the two upper half rods and the two lower half rods to move away from each other.

[0006] Preferably, lifting grooves that penetrate the first through hole are provided on the ends of the fixed screw and the control block, and the supporting assembly includes a linkage part that is penetrated in the lifting groove, and a card block at one end of which can be penetrated in the first through hole and is arranged on both ends of the fixed screw and can be connected to the linkage assembly. The card block has a disc-shaped structure, and the end surface area of ​​one end is smaller than the cross-section of the lifting groove, and the end surface of the other end is larger than the cross-section of the lifting groove and smaller than the cross-section of the fixed screw; the linkage assembly controls the two card blocks to approach or move away from each other in the lifting groove.

[0007] Preferably, the linkage part includes a positioning screw passed through the lifting groove, a rotating block rotatably arranged in the middle of the lifting groove and fixedly connected to the middle of the positioning screw rod body, and a positioning block fixedly arranged on the smaller end face of the clamping block, a connecting hole which penetrates the second through hole is provided on the end face of the positioning block, and a positioning thread which is threadably connected to the positioning screw is provided on the wall of the connecting hole; a rotating groove is provided at the end of the positioning screw adjacent to one end of the control block.

[0008] Preferably, the linkage member further comprises a limit strip fixedly arranged on the wall of the lifting slot parallel to the length direction of the positioning screw, and the side surfaces of the positioning block and the clamping block are provided with limit slots which can be sleeved on the limit strip.

[0009] Preferably, a crimping block is provided in the wiring hole.

[0010] The beneficial effects of the utility model are as follows: the end of the wire is directly inserted into the wiring hole, and then the fixing screw is inserted into the fixing screw hole through a threaded connection, and the fixing screw is moved up and down in the fixing screw hole by rotating the fixing screw, so that the end of the wire is fixed in the wiring hole through the bottom end of the fixing screw. After the end of the wire is fixed in the wiring hole, the two upper half rods and the two lower half rods are driven away from each other by the supporting assembly, so that the position of the fixing screw in the fixing screw hole is fixed, which is convenient for ensuring the fixing stability of the end of the wire by the fixing screw, and the wire can be conveniently connected, and the stability of the wire connection is improved, thereby ensuring the normal use of the switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 This is a simplified structural diagram of the medium- and high-voltage dual power supply fast switching device proposed by the utility model.

[0013] Figure 2 It is a schematic diagram of the structure of the fixing screw rod and the supporting assembly of the utility model.

[0014] Figure 3 This is a schematic diagram of the internal structure of the fixing screw and the supporting assembly of the utility model when viewed from above.

[0015] Figure 4 This is a schematic diagram of the positioning block and the clamping block structure of the utility model.

[0016] In the figure: 1. Mounting plate; 2. Switch body; 3. Wiring hole; 4. Crimping block; 5. Fixing screw hole; 6. Fixing screw; 7. Control block; 8. First through hole; 9. Limiting strip; 10. Rotating block; 11. Positioning screw; 12. Positioning block; 13. Clamping block; 14. Second through hole; 15. Limiting groove; 16. Rotating groove; 17. Positioning thread. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0018] See also Figure 1-4 A medium- and high-voltage dual-power fast switching device comprises a switch body 2 arranged on a mounting plate 1, and a wiring mechanism arranged on the switch body 2 and connected to a wire, a wiring hole 3 matched with an end of the wire is opened on the side of the switch body 2, and a fixing screw hole 5 penetrating the inside of the wiring hole 3 is opened on the top end surface of the switch body 2, and the wiring mechanism comprises a fixing screw rod 6 passing through the fixing screw hole 5 through a threaded connection, a control block 7 fixedly arranged on the end of the fixing screw 6, and a supporting component passing through a first through hole 8 opened on the side of the rod body at both ends of the fixing screw 6 and the control block 7, and the rod body at both ends of the fixing screw 6 divides the fixing screw 6 into two upper half rods and two lower half rods through the opened first through hole 8; the supporting component controls the two upper half rods and the two lower half rods to move away from each other.

[0019] like Figure 1-4 As shown, the end of the wire is directly inserted into the wiring hole 3, and then the fixing screw 6 is inserted into the fixing screw hole 5, and the fixing screw 6 is rotated, so that it is convenient to control the fixing screw 6 to move up and down in the fixing screw hole 5, so that the end of the wire inserted in the wiring hole 3 is fixed and positioned by the bottom end of the fixing screw 6, and when the end of the wire is fixed by the bottom end of the fixing screw 6, the two upper half rods and the two lower half rods are driven away from each other by the supporting assembly, so that the position of the fixing screw 6 in the fixing screw hole 5 is fixed, so that the end of the wire is fixed in the wiring hole 3, the wire can be conveniently connected, and the stability of the wire connection is improved, ensuring the normal use of the switch.

[0020] like Figure 1-4As shown, a lifting groove which is connected with the first through hole 8 is provided on the ends of the fixed screw 6 and the control block 7, and the supporting assembly includes a linkage member which is penetrated in the lifting groove and a card block 13 which can be penetrated in the first through hole 8 and arranged on both ends of the fixed screw 6 and can be connected with the linkage assembly, the card block 13 is a disc-shaped structure, and the end surface area of ​​one end is smaller than the cross section of the lifting groove, and the end surface of the other end is larger than the cross section of the lifting groove and smaller than the cross section of the fixed screw 6; the linkage assembly controls the two card blocks 13 to approach or move away from each other in the lifting groove, wherein the position of the end of the wire in the wiring hole 3 is fixed by the fixed screw 6, and at this time, the two card blocks 13 are driven to approach each other by the linkage member, so that it is convenient to resist the two upper half rods and the two lower half rods by the card block 13, so that the two upper half rods and the two lower half rods are moved away from each other, so as to facilitate the fixing of the fixed screw 6 in the fixed screw hole 5, so as to facilitate the fixing stability of the wire in the wiring hole 3, and the wire can be conveniently connected, and the stability of the wire connection is improved, so as to ensure the normal use of the switch.

[0021] The linkage part includes a positioning screw 11 inserted into the lifting groove, a rotating block 10 rotatably arranged in the middle of the lifting groove and fixedly connected to the middle of the rod of the positioning screw 11, and a positioning block 12 fixedly arranged on the smaller end face of the clamping block 13. A connecting hole that penetrates the second through hole 14 is provided on the end face of the positioning block 12, and a positioning thread 17 threadedly connected to the positioning screw 11 is provided on the wall of the connecting hole; a rotating groove 16 is provided at the end of the positioning screw 11 adjacent to the control block 7.

[0022] The linkage also includes a limit strip 9 fixedly arranged on the wall of the lifting slot in parallel with the length direction of the positioning screw 11 , and a limit slot 15 which can be sleeved on the limit strip 9 is opened on the side of the positioning block 12 and the clamping block 13 .

[0023] like Figure 1-4 As shown, when the fixing screw 6 is driven by the control block 7 to pass through the fixing screw hole 5 to fix the wire in the wiring hole 3, the positioning screw 11 is driven to rotate through the rotating groove 16, so as to facilitate driving the two positioning blocks 12 to approach each other, thereby facilitating driving the clamping blocks 13 set on the two positioning blocks 12 to approach each other, thereby facilitating driving the two upper half rods and the two lower half rods to move away from each other, thereby facilitating fixing the position of the fixing screw 6 passed through the fixing screw hole 5.

[0024] The threads on the rods at both ends of the positioning screw rod 11 are opposite.

[0025] The limiting strip 9 arranged in the lifting groove slides in the limiting groove 15 provided on the positioning block and the clamping block 13, so that the two positioning blocks 12 are driven to approach each other on the rod body of the positioning screw 11 through the positioning screw 11, and the two upper half rods and the two lower half rods are driven to move away from each other through the clamping block 13, so as to fix the position of the fixing screw 6 in the fixing screw hole 5, so as to ensure the position of the end of the wire in the wiring hole 3, and ensure the fixing stability of the wire, so that the wire can be connected conveniently, and the stability of the wire connection is improved, thereby ensuring the normal use of the switch.

[0026] A crimping block 4 is arranged in the wiring hole 3 .

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A medium- and high-voltage dual power supply fast switching device, comprising a switch body (2) arranged on a mounting plate (1), and a wiring mechanism arranged on the switch body (2) and connected to a wire, a wiring hole (3) for matching with an end of the wire is provided on a side of the switch body (2), characterized in that: A fixing screw hole (5) is provided on the top end surface of the switch body (2) and is connected to the inside of the wiring hole (3). The wiring mechanism comprises a fixing screw rod (6) which is threadedly connected and passes through the fixing screw hole (5), a control block (7) fixedly arranged on the end of the fixing screw rod (6), and a support component which passes through the rod body at both ends of the fixing screw rod (6) and the first through hole (8) provided on the side of the control block (7). The rod body at both ends of the fixing screw rod (6) divides the fixing screw rod (6) into two upper half rods and two lower half rods through the first through hole (8); the support component controls the two upper half rods and the two lower half rods to move away from each other.

2. A medium-high voltage dual power supply fast switching device according to claim 1, characterized in that: The ends of the fixed screw (6) and the control block (7) are provided with lifting grooves which are connected with the first through hole (8); the supporting assembly comprises a linkage member which is arranged in the lifting groove and a clamping block (13) which can be arranged in the first through hole (8) at one end and is arranged at both ends of the fixed screw (6) and can be connected with the linkage assembly; the clamping block (13) is in a disc-shaped structure, and the end surface area of ​​one end is smaller than the cross section of the lifting groove and the end surface of the other end is larger than the cross section of the lifting groove and smaller than the cross section of the fixed screw (6); the linkage assembly controls the two clamping blocks (13) to move closer to or farther away from each other in the lifting groove.

3. A medium-high voltage dual power supply fast switching device according to claim 2, characterized in that: The linkage member comprises a positioning screw (11) passing through the lifting groove, a rotating block (10) rotatably arranged in the middle of the lifting groove and fixedly connected to the middle of the rod of the positioning screw (11), and a positioning block (12) fixedly arranged on the smaller end surface of the clamping block (13); a connecting hole which penetrates the second through hole (14) is provided on the end surface of the positioning block (12); a positioning thread (17) which is threadedly connected to the positioning screw (11) is provided on the wall of the connecting hole; and a rotating groove (16) is provided at the end of the positioning screw (11) adjacent to one end of the control block (7).

4. A medium-high voltage dual power supply fast switching device according to claim 3, characterized in that: The linkage member also includes a limit strip (9) fixedly arranged on the wall of the lifting slot in a length direction parallel to the positioning screw (11), and a limit slot (15) which can be sleeved on the limit strip (9) is opened on the side of the positioning block (12) and the clamping block (13).

5. A medium-high voltage dual power supply fast switching device according to claim 4, characterized in that: A crimping block (4) is arranged in the wiring hole (3).

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