Multi-contact combined commutator

Abstract

The utility model relates to the technical field of commutators, in particular to a multi-contact combined type commutator. According to the technical scheme, the device comprises an insulating sleeve and metal contacts, the metal contacts are installed on the periphery of the insulating sleeve at equal intervals, a center sleeve is rotationally connected to the center position in the insulating sleeve, a connecting block is fixed to the center position of the inner side of each metal contact, and a clamping block is fixed to the end of each connecting block. A through hole is formed in the outer side wall of the insulation sleeve and corresponds to the clamping block in position, a clamping groove is formed in the center sleeve and corresponds to the clamping block in position, the clamping block penetrates through the through hole and is clamped in the clamping groove, a pair of baffles is fixed to an opening of the clamping groove, and the opening of the clamping groove and the baffles are combined to form a T-shaped structure. According to the utility model, after the positioning rod is pulled, the fixation of the central sleeve is easily released, and after the central sleeve is deflected at a specified angle, the fixation of all metal contacts can be easily released, the metal contacts do not need to be independently disassembled and assembled one by one, and the operation is simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of commutators, in particular to a multi-contact combined commutator. Background Art

[0002] A commutator usually refers to a device in the electrical field that is used to change the direction or magnitude of current or voltage in a circuit. This device is also called a switch, a diverter or an inverter. Its function is to transfer current or voltage from one circuit to another, or to change the way a circuit is connected.

[0003] The commutator is usually composed of a central insulating sleeve and peripheral metal contacts. Common metal contacts are locked or fixed to the outside of the insulating sleeve using special insulating adhesives, which makes it difficult to disassemble and replace the metal contacts. Secondly, multiple contacts are installed equidistantly on the outside of the insulating sleeve. When installing and disassembling the contacts, each metal contact needs to be disassembled and assembled independently, which further reduces work efficiency. Utility Model Content

[0004] The utility model aims to provide a multi-contact combined commutator in view of the problems existing in the background technology.

[0005] The technical solution of the utility model is as follows: a multi-contact combined commutator, comprising an insulating sleeve and metal contacts, the metal contacts being equidistantly installed on the periphery of the insulating sleeve, a center sleeve being rotatably connected to the inner center position of the insulating sleeve, a connecting block being fixed at the inner center position of the metal contact, a clamping block being fixed at the end of the connecting block, a through hole being provided on the outer wall of the insulating sleeve at a position corresponding to the clamping block, a clamping groove being provided on the center sleeve at a position corresponding to the clamping block, the clamping block passing through the through hole and being clamped in the clamping groove, a pair of baffles being fixed at the opening of the clamping groove, and the opening of the clamping groove and the baffle are combined into a T-shaped structure.

[0006] Preferably, a pair of fixing holes are opened at the upper end of the center sleeve, and a telescopic groove is opened in the insulating sleeve at a position corresponding to the fixing holes. A positioning rod is slidably connected in the telescopic groove, and the bottom of the positioning rod passes through the telescopic groove and is inserted into one of the fixing holes.

[0007] Preferably, a fixed plate is fixed in the telescopic slot, the positioning rod passes through the fixed plate and is slidably connected to the fixed plate, a pull block is slidably connected above the telescopic slot, the upper end of the positioning rod is fixed to the bottom of the pull block, a return spring is fixed between the pull block and the fixed plate, and the upper end of the pull block extends out of the telescopic slot.

[0008] Preferably, a lever is fixed to the upper end of the center sleeve away from the fixing hole, a movable groove is provided at the upper end of the insulating sleeve at a position corresponding to the lever, and the upper end of the lever extends out of the movable groove and is slidably connected in the movable groove.

[0009] Preferably, positioning holes are provided on the outer wall of the insulating sleeve and aligned with the four corners of the metal contact, and positioning blocks are fixed to the four corners of the metal contact, and the positioning blocks are inserted into the positioning holes.

[0010] Preferably, the size of the connecting block is smaller than that of the card block, the size of the perforation matches the size of the card block and the size of the card slot, and the spacing between the baffles matches the size of the connecting block.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects: after pulling the positioning rod, the fixation of the center sleeve can be easily released, and after the center sleeve is deflected at a specified angle, the fixation of all metal contacts can be easily released without the need for independent disassembly and assembly one by one, and the operation is simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the front cutaway structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the appearance structure of the insulation sleeve of the utility model;

[0014] Figure 3 This is a schematic diagram of the appearance structure of the center sleeve of the utility model;

[0015] Figure 4 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0016] Figure numerals: 1. Insulating sleeve; 11. Positioning hole; 12. Through hole; 13. Movable slot; 14. Telescopic slot; 15. Fixed plate; 16. Pull block; 17. Positioning rod; 18. Reset spring; 2. Metal contact; 21. Positioning block; 22. Connecting block; 23. Clamping block; 3. Center sleeve; 31. Clamping slot; 32. Baffle; 33. Push rod; 34. Fixed hole. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Example

[0019] like Figure 1-4As shown, the utility model proposes a multi-contact combined commutator, including an insulating sleeve 1 and a metal contact 2, the metal contact 2 is equidistantly installed on the outer periphery of the insulating sleeve 1, the central position of the inner center of the insulating sleeve 1 is rotatably connected with a center sleeve 3, a connecting block 22 is fixed at the inner center of the metal contact 2, a clamping block 23 is fixed at the end of the connecting block 22, a through hole 12 is opened at the outer wall of the insulating sleeve 1 and at a position corresponding to the clamping block 23, a clamping groove 31 is opened on the central sleeve 3 and at a position corresponding to the clamping block 23, and the clamping block 23 passes through the through hole 12 And it is carded in the card slot 31, a pair of baffles 32 are fixed at the opening of the card slot 31, the opening of the card slot 31 and the baffles 32 are combined into a T-shaped structure, the size of the connecting block 22 is smaller than the size of the card block 23, the size of the through hole 12 is adapted to the size of the card block 23 and the size of the card slot 31, the spacing between the baffles 32 is adapted to the size of the connecting block 22, and positioning holes 11 are opened on the outer wall of the insulating sleeve 1 and aligned with the four corners of the metal contact 2, and positioning blocks 21 are fixed at the four corners of the metal contact 2, and the positioning blocks 21 are inserted into the positioning holes 11.

[0020] A pair of fixing holes 34 are provided at the upper end of the center sleeve 3, and a telescopic groove 14 is provided in the insulating sleeve 1 at a position corresponding to the fixing hole 34. A positioning rod 17 is slidably connected in the telescopic groove 14. The bottom of the positioning rod 17 passes through the telescopic groove 14 and is inserted into one of the fixing holes 34. A fixing plate 15 is fixed in the telescopic groove 14. The positioning rod 17 passes through the fixing plate 15 and is slidably connected to the fixing plate 15. A pull block 16 is slidably connected above the telescopic groove 14. The upper end of the positioning rod 17 is fixed to the bottom of the pull block 16, and a reset spring 18 is fixed between the pull block 16 and the fixing plate 15. The upper end of the pull block 16 extends out of the telescopic groove 14, and a lever 33 is fixed on the side of the upper end of the center sleeve 3 away from the fixing hole 34. A movable groove 13 is provided at the upper end of the insulating sleeve 1 and at a position corresponding to the lever 33. The upper end of the lever 33 extends out of the movable groove 13 and is slidably connected in the movable groove 13.

[0021] In this embodiment, when the metal contact 2 is disassembled, the pull block 16 is first pulled to drive the positioning rod 17 to slide in the telescopic slot 14, so that the bottom of the positioning rod 17 is pulled out of the fixing hole 34 and retracted into the telescopic slot 14. At the same time, the reset spring 18 is stretched to release the fixation of the center sleeve 3. Then, the lever 33 is pushed to slide between the two ends of the movable slot 13 to achieve the rotation of the center sleeve 3 at a specified angle. When the center sleeve 3 rotates, the block 23 can slide in the slot 31, so that the block 23 can lose the obstruction of the baffle 32 and be easily pulled out of the slot 31, so that the metal contact 2 can be disassembled. The quick disassembly of the head 2 and the deflection of the center sleeve 3 can simultaneously release the fixation of all the metal contacts 2. The operation is simple and convenient. When fixing the metal contacts 2, the card block 23 can be passed through the through hole 12 but not inserted into the card slot 31. After the center sleeve 3 is deflected, the connecting block 22 slides between the baffles 32, so that the card block 23 is blocked by the baffles 32 and cannot be pulled out of the card slot 31. Finally, the reset spring 18 is reset to allow the positioning rod 17 to be reinserted into the fixing hole 34 to complete the fixation of the center sleeve 3, thereby fixing all the metal contacts 2, achieving the purpose of unified and synchronous disassembly and assembly, and greatly shortening the disassembly and replacement time.

[0022] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A multi-contact combined commutator, comprising an insulating sleeve (1) and metal contacts (2), characterized in that: The metal contacts (2) are equidistantly mounted on the periphery of the insulating sleeve (1); the insulating sleeve (1) is rotatably connected to a center sleeve (3) at a central position inside the insulating sleeve (1); a connecting block (22) is fixed at a central position inside the metal contact (2); a clamping block (23) is fixed at the end of the connecting block (22); a through hole (12) is provided on the outer wall of the insulating sleeve (1) at a position corresponding to the clamping block (23); a clamping groove (31) is provided on the center sleeve (3) at a position corresponding to the clamping block (23); the clamping block (23) passes through the through hole (12) and is clamped in the clamping groove (31); a pair of baffles (32) are fixed at the opening of the clamping groove (31); the opening of the clamping groove (31) and the baffles (32) are combined into a T-shaped structure.

2. A multi-contact combined commutator according to claim 1, characterized in that: A pair of fixing holes (34) are provided at the upper end of the center sleeve (3), a telescopic slot (14) is provided in the insulating sleeve (1) at a position corresponding to the fixing holes (34), a positioning rod (17) is slidably connected in the telescopic slot (14), and the bottom of the positioning rod (17) passes through the telescopic slot (14) and is inserted into one of the fixing holes (34).

3. A multi-contact combined commutator according to claim 2, characterized in that: A fixed plate (15) is fixed in the telescopic slot (14), the positioning rod (17) passes through the fixed plate (15) and is slidably connected to the fixed plate (15), a pull block (16) is slidably connected above the telescopic slot (14), the upper end of the positioning rod (17) is fixed to the bottom of the pull block (16), a return spring (18) is fixed between the pull block (16) and the fixed plate (15), and the upper end of the pull block (16) extends out of the telescopic slot (14).

4. A multi-contact combined commutator according to claim 1, characterized in that: A lever (33) is fixed to the upper end of the center sleeve (3) at a side away from the fixing hole (34); a movable groove (13) is provided at the upper end of the insulating sleeve (1) and at a position corresponding to the lever (33); the upper end of the lever (33) extends out of the movable groove (13) and is slidably connected in the movable groove (13).

5. The multi-contact combined commutator according to claim 1, characterized in that: Positioning holes (11) are provided on the outer wall of the insulating sleeve (1) and aligned with the four corners of the metal contact (2). Positioning blocks (21) are fixed to the four corners of the metal contact (2), and the positioning blocks (21) are inserted into the positioning holes (11).

6. A multi-contact combined commutator according to claim 1, characterized in that: The size of the connecting block (22) is smaller than the size of the clamping block (23), the size of the through hole (12) is compatible with the size of the clamping block (23) and the size of the clamping slot (31), and the spacing between the baffles (32) is compatible with the size of the connecting block (22).

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