Self-resetting fastening wiring type contactor

Abstract

The invention discloses a self-resetting fastening wiring type contactor, and relates to the technical field of contactors. The contactor comprises a contactor unit, an elastic unit and a fastening unit. Two sides of the contactor unit are symmetrically provided with a plurality of wiring grooves, the bottoms of the wiring grooves are provided with abutting plates, and the abutting plates are provided with threaded holes; the elastic unit is slidably installed in the sliding groove. The fastening unit is composed of a screw and a slip, the screw is arranged on the slip in a penetrating mode, the slip is installed in the wiring groove in a matched mode, sliding blocks are arranged on the two sides of the slip, sliding grooves are formed in the positions, corresponding to the sliding blocks, of the groove wall of the wiring groove, and after the elastic unit is installed in the sliding grooves, the slip is installed in the wiring groove in a sliding mode through mutual matching of the sliding blocks and the sliding grooves. The screws are connected with the threaded holes in the abutting plate in a matched mode. The fastening unit slides up and down in the sliding groove of the wiring groove through the elastic unit, the selection limitation of the wiring terminal and the singleness of the wiring form are solved, the wiring reliability of the low-voltage electrical apparatus element is improved, and the use industry of the low-voltage electrical apparatus element is widened.

Description

Technical Field

[0001] The invention relates to the technical field of contactors, and in particular to a self-resetting fastening wiring type contactor. Background Art

[0002] In the field of low-voltage electrical appliances, 9-38A contactors are limited by the product structure. One product structure only allows one or two types of terminal blocks to be used for wiring. In addition, there is the problem of unstable wiring. Parts need to be disassembled during wiring, and the wiring process is complicated. Summary of the invention

[0003] In view of the above technical problems, the present invention provides a self-resetting fastening wiring type contactor, which is used to solve the problems of single wiring method and complicated wiring process of existing contactors.

[0004] In order to achieve the above object, the technical solution of the present invention is as follows: A self-resetting fastening wiring type contactor comprises a contactor unit, an elastic unit and a fastening unit; A plurality of wiring slots are symmetrically arranged on both sides of the contactor unit, and a contact plate is arranged at the bottom of the wiring slot, and a threaded hole is opened on the contact plate; The fastening unit consists of screws and slips. The screws are inserted into the slips, and the slips are adapted to be installed in the wiring groove. Slide blocks are provided on both sides of the slips. Slide grooves are provided on the groove walls of the wiring groove at positions corresponding to the slide blocks. The elastic unit is slidably installed in the slide grooves. After the elastic unit is installed in the slide grooves, the slips are slidably installed in the wiring grooves through the cooperation between the slide blocks and the slide grooves, and the screws are connected in cooperation with the threaded holes on the contact plate.

[0005] It also includes a limit protection unit, a convex step is provided at the bottom of the limit protection unit, a concave tooth groove is opened on the groove wall of the wiring groove, the concave tooth groove corresponds to the position of the convex step, the limit protection unit is connected to the wiring groove through the cooperation of the concave tooth groove and the convex step, and a through hole is opened at the top of the limit protection unit corresponding to the axis position of the screw.

[0006] A wedge-shaped locking block is also provided at the bottom of the position limiting protection unit, and a square-shaped window is opened on the inside of the wiring slot at a position corresponding to the wedge-shaped locking block. After the position limiting protection unit is clamped on the wiring slot, the wedge-shaped locking block is clamped in the square-shaped window.

[0007] The top of the screw is in a step-shaped shape, the diameter of the top circle of the step is smaller than the diameter of the through hole, and the diameter of the bottom circle of the step is larger than the diameter of the through hole.

[0008] The sliding groove is staggeredly arranged on the groove wall.

[0009] Compared with the prior art, the present invention has the following beneficial effects: 1. The fastening unit slides up and down in the sliding groove of the wiring groove through the elastic unit. There is no need to remove the protective cover and screws, so that the "OT" type wiring terminal, "U" type wiring terminal and tubular wiring terminal can be used interchangeably, which solves the selection limitations of the wiring terminal and the singleness of the wiring form, improves the reliability of the wiring of low-voltage electrical components, and broadens the use of low-voltage electrical components. Industry; 2. The design of the card-type limit protection unit is not only conducive to dust prevention of the terminal block, but also easy to disassemble. The operator can tighten or loosen the screws through the through hole on the top of the limit protection unit; 3. After the wedge-shaped lock block is clamped in the square window, the wedge-shaped lock block and the square window form an interference fit. The wedge-shaped lock block can ensure that when assembled in the limited square window gap, it is easy to stretch and deform, and it can be assembled in place without damaging the edge and ensure reliable hanging and assembly with the contactor unit, and it has good anti-vibration and anti-loosening functions; 4. When the fastening unit moves upward along the slide groove of the wiring groove with the elastic structure unit, the top position of the screw of the fastening unit is inserted into the through hole of the limit protection unit and continues to move upward. The bottom circle of the screw stops moving after connecting with the inner circle of the through hole, and the screw is limited by the through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a first structural schematic diagram of a contactor unit in the present invention; Figure 3 is a second structural schematic diagram of the contactor unit in the present invention; Figure 4 It is a structural schematic diagram of the position limiting protection unit in the present invention; Figure 5 It is a structural schematic diagram of the fastening unit in the present invention.

[0011] In the figure: 1. Contactor unit; 2. Elastic unit; 3. Fastening unit; 4. Contact plate; 5. Threaded hole; 6. Slide groove; 7. Slot wall; 8. Screw; 9. Slip; 10. Slider; 11. Limit protection unit; 12. Convex step; 13. Concave tooth groove; 14. Through hole; 15. Wedge-shaped locking block; 16. U-shaped window; 17. Wiring groove. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0013] A self-resetting fastening wiring type contactor comprises a contactor unit 1, an elastic unit 2 and a fastening unit 3; A plurality of wiring slots 17 are symmetrically provided on both sides of the contactor unit 1. A contact plate 4 is provided at the bottom of the wiring slot 17. A threaded hole 5 is provided on the contact plate 4. The fastening unit 3 is composed of a screw 8 and a slip 9. The screw 8 is passed through the slip 9, and the slip 9 is adapted to be installed in the wiring groove 17. Slide blocks 10 are provided on both sides of the slip 9. A slide groove 6 is provided on the groove wall 7 of the wiring groove 17 at a position corresponding to the slide block 10. The elastic unit 2 is slidably installed in the slide groove 6. After the elastic unit 2 is installed in the slide groove 6, the slip 9 is slidably installed in the wiring groove 17 through the mutual cooperation between the slide block 10 and the slide groove 6. The screw 8 is connected with the threaded hole 5 on the contact plate 4. When wiring, screw 8 is turned, and then the elastic unit 2 is reset, and the lifting slip 9 slides upward in the wiring groove 17, keeping a certain distance between the screw 8 on the slip 9 and the contact plate 4, and then an "OT" type terminal or a "tubular" type terminal or a "U" type terminal that meets the use requirements is inserted between the head of the screw 8 and the contact plate 4. After the terminal is plugged in place, an external tool is used to shorten the distance between the screw 8 and the contact plate 4, and the elastic unit 2 begins to compress until the head of the screw 8 is inserted into the threaded hole 5 of the contact plate 4 and is completely engaged and locked, that is, the terminal is tightened. The slip 9 is slidably connected in the slide groove 6 of the wiring groove 17 through the elastic unit 2 and is lifted up under the action of the elastic unit 2. There is no need to remove the protective cover and the screw 8, so that the "OT" type terminal, "U" type terminal and tubular terminal can be used universally, which solves the selection limitations of the terminal and the singleness of the wiring form, improves the reliability of the wiring of low-voltage electrical components, and broadens the use industry of low-voltage electrical components.

[0014] It also includes a limit protection unit 11, a convex step 12 is provided at the bottom of the limit protection unit 11, a concave tooth groove 13 is provided on the groove wall 7 of the wiring groove 17, and the concave tooth groove 13 corresponds to the position of the convex step 12. The limit protection unit 11 is clamped on the wiring groove 17 through the cooperation of the convex step 12 and the convex step 12, and a through hole 14 is provided at the top of the limit protection unit 11 corresponding to the axis position of the screw 8. The design of the clamping limit protection unit 11 is not only conducive to dust prevention of the wiring terminal, but also convenient for disassembly. The operator can tighten or loosen the screw 8 through the through hole 14 at the top of the limit protection unit 11.

[0015] The bottom of the position limiting protection unit 11 is also provided with a wedge-shaped locking block 15, and a square-shaped window 16 is provided inside the wiring groove 17 at a position corresponding to the wedge-shaped locking block 15. After the position limiting protection unit 11 is clamped on the wiring groove 17, the wedge-shaped locking block 15 is clamped in the square-shaped window 16. After the wedge-shaped locking block 15 is clamped in the square-shaped window 16, the wedge-shaped locking block 15 and the square-shaped window 16 form an interference fit, and the wedge-shaped locking block 15 can ensure that when assembled in the limited gap of the square-shaped window 16, it is easy to stretch and deform, and is assembled in place without damaging the edge and ensures reliable hanging and assembly with the contactor unit 1, and has good anti-vibration and anti-loosening functions.

[0016] The top of the screw 8 is in a step-like shape, the top circle diameter of the step is smaller than the diameter of the through hole 14, and the bottom circle diameter of the step is larger than the diameter of the through hole 14. When the fastening unit 3 moves upward along the slide groove 6 of the wiring groove 17 along with the elastic structure unit, the top position of the screw 8 of the fastening unit 3 is inserted into the through hole 14 of the limit protection unit 11 and then continues to move upward, and the bottom circle of the screw 8 stops moving after it contacts the inner circle of the through hole 14, and the screw 8 is limited by the through hole 14.

[0017] The slide groove 6 is staggered on the groove wall 7 to avoid long-term stress on the same position.

[0018] When using: The limit protection unit 11 is connected to the contactor unit 1 through the mutual cooperation of the wedge-shaped locking block 15 and the square-shaped window 16. The operator passes the tool through the through hole 14 at the top of the limit protection unit 11 and then screws the screw 8. Then, the elastic unit 2 is reset, and the top slip 9 slides upward in the wiring groove 17, and the screw 8 on the slip 9 is kept at a certain distance from the contact plate 4. At the same time, the through hole 14 at the top of the limit protection unit 11 limits the top of the screw 8 to prevent the fastening unit 3 from being separated from the wiring groove 17 due to the elastic unit 2, and then the "OT" type terminal or "tubular" type terminal or "U" type terminal that meets the use requirements is inserted between the head of the screw 8 and the contact plate 4 After the terminal is plugged into place, an external tool is used to shorten the distance between the screw 8 and the contact plate 4, and the elastic unit 2 begins to compress until the head of the screw 8 is inserted into the threaded hole 5 of the contact plate 4 and is completely engaged and locked, that is, the terminal is tightened. The slip 9 is slidably connected in the slide groove 6 of the wiring groove 17 through the elastic unit 2, and is lifted up under the action of the elastic unit 2. There is no need to remove the protective cover and the screw 8, so that the "OT" type terminal, "U" type terminal and tubular terminal can be used interchangeably, which solves the selection limitations of the terminal and the singleness of the wiring form, improves the reliability of the wiring of low-voltage electrical components, and broadens the use industry of low-voltage electrical components.

[0019] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-resetting fastening wiring type contactor, characterized in that: It comprises a contactor unit (1), an elastic unit (2) and a fastening unit (3); A plurality of wiring slots (17) are symmetrically provided on both sides of the contactor unit (1); a contact plate (4) is provided at the bottom of the wiring slot (17); and a threaded hole (5) is provided on the contact plate (4); The fastening unit (3) is composed of a screw (8) and a slip (9), the screw (8) is inserted into the slip (9), the slip (9) is adapted to be installed in the wiring groove (17), sliders (10) are provided on both sides of the slip (9), a slide groove (6) is provided on the groove wall (7) of the wiring groove (17) at a position corresponding to the slider (10), the elastic unit (2) is slidably installed in the slide groove (6), after the elastic unit (2) is installed in the slide groove (6), the slip (9) is slidably installed in the wiring groove (17) through the mutual cooperation of the slider (10) and the slide groove (6), and the screw (8) is cooperatively connected with the threaded hole (5) on the contact plate (4).

2. A self-resetting fastening wiring type contactor according to claim 1, characterized in that: The invention also comprises a limit protection unit (11), wherein a convex step (12) is provided at the bottom of the limit protection unit (11), a concave tooth groove (13) is provided on the groove wall (7) of the wiring groove (17), the concave tooth groove (13) corresponds to the position of the convex step (12), the limit protection unit (11) is clamped on the wiring groove (17) by the cooperation between the concave tooth groove (13) and the convex step (12), and a through hole (14) is provided at the top of the limit protection unit (11) corresponding to the axis position of the screw (8).

3. A self-resetting fastening wiring type contactor according to claim 2, characterized in that: A wedge-shaped locking block (15) is also provided at the bottom of the position limiting protection unit (11), and a square-shaped window (16) is provided inside the wiring slot (17) at a position corresponding to the wedge-shaped locking block (15). When the position limiting protection unit (11) is snap-fitted to the wiring slot (17), the wedge-shaped locking block (15) is snap-fitted into the square-shaped window (16).

4. A self-resetting fastening wiring type contactor according to claim 1, characterized in that: The top of the screw (8) is in the shape of a step, the diameter of the top circle of the step is smaller than the diameter of the through hole (14), and the diameter of the bottom circle of the step is larger than the diameter of the through hole (14).

5. The self-resetting fastening wiring type contactor according to claim 1, characterized in that: The sliding groove (6) is arranged on the groove wall (7) in a staggered manner.

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