A tinned fastener for a terminal block

Abstract

The utility model discloses a tinned fastener for a wiring terminal, comprising a terminal fastening seat, a first through groove being provided at the front end of the terminal fastening seat, the first through groove penetrating the terminal fastening seat, a smooth groove being provided downwardly on the top surface of the terminal fastening seat, the smooth groove being communicated with the first through groove, a screw being provided in the first through groove, the screw being fixedly connected to the bottom surface of the first through groove, the screw being provided perpendicular to a horizontal plane, the smooth groove being penetrated by a screw, the screw being threadedly connected to the screw, a limiting ring being provided in the first through groove, the utility model comprises a terminal fastening seat, a screw and a limiting ring, the terminal fastening seat being provided with a first through groove and a smooth groove, the smooth groove being penetrated by a screw, the screw being connected to the limiting ring, and the limiting ring being capable of preventing the screw from detaching from the terminal fastening seat.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing wiring terminals, in particular to a tinned fastener for wiring terminals. Background Art

[0002] Terminal block fasteners are components that connect electrical circuits and are mainly used to achieve connection and fixation between electrical circuits. Most existing terminal block fasteners are fixed with bolts. Generally, terminal block fasteners come with bolts. When connecting electrical components, the bolts need to be removed before connection. The bolts are easily lost after being removed, which affects the connection rate of the electrical circuit. Utility Model Content

[0003] 1. Technical problems solved

[0004] In view of the deficiencies in the prior art, the utility model provides a tinned fastener for a terminal block, the fastener comprising a terminal fastening seat, a screw and a limiting ring, the terminal fastening seat being provided with a first through groove and a smooth groove, the smooth groove being penetrated by the screw, the screw being connected to the limiting ring, the limiting ring being able to prevent the screw from detaching from the terminal fastening seat, thereby solving the problems raised by the background technology.

[0005] 2. Technical solution

[0006] A tinned fastener for a terminal block comprises a terminal fastening seat, a first through groove being provided at the front end of the terminal fastening seat, the first through groove passing through the terminal fastening seat, a smooth groove being provided downwardly on the top surface of the terminal fastening seat, the smooth groove being communicated with the first through groove, a screw being provided in the first through groove, the screw being fixedly connected to the bottom surface of the first through groove, the screw being provided perpendicular to a horizontal plane, the smooth groove being passed through by a screw, the screw being threadedly connected to the screw, and a limiting ring being provided in the first through groove.

[0007] Preferably, the screw includes a screw head, a smooth screw rod and an internal thread groove, the outer wall of the smooth screw rod is smooth, the smooth screw rod passes through the first through groove and the outer wall of the smooth screw rod is in contact with the side wall of the smooth groove, the top of the smooth screw rod is fixedly provided with a screw head, the bottom surface of the smooth screw rod is upwardly provided with an internal thread groove, the internal thread groove is screwed with the screw thread, and the height of the internal thread groove is the same as the height of the screw.

[0008] Preferably, the smooth screw rod passes through the limiting ring and is fixedly connected to the limiting ring, the bottom surface of the smooth screw rod and the bottom surface of the limiting ring are in the same horizontal plane, the outer diameter of the limiting ring is slightly larger than the outer diameter of the smooth groove, and the outer diameter of the screw head is slightly larger than the outer diameter of the smooth groove.

[0009] Preferably, a second through groove is opened upward on the bottom surface of the screw rod, and the second through groove passes through the front and rear ends of the screw rod.

[0010] Preferably, the terminal fastening seat, the screw and the limiting ring are made of metal, and the outer surfaces of the terminal fastening seat, the screw and the limiting ring are plated with a layer of uniform and dense tin.

[0011] 3. Beneficial effects

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The fastener includes a terminal fastening seat, a screw and a limiting ring. The terminal fastening seat is provided with a first through groove and a smooth groove. The smooth groove is penetrated by the screw. The screw is connected to the limiting ring. The limiting ring can prevent the screw from detaching from the terminal fastening seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the terminal fastening seat of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the utility model;

[0017] Figure 4 This is a cross-sectional view of the smooth screw rod structure of the utility model;

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the screw of the utility model.

[0019] In the figure: 1, terminal fastening seat; 2, screw rod; 3, screw; 101, first through groove; 102, smooth groove; 201, second through groove; 301, screw head; 302, smooth screw rod; 303, internal thread groove; 304, limit ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example

[0022] Reference Figure 1-5 As shown,

[0023] A tinned fastener for a terminal, comprising a terminal fastening seat 1, a first through slot 101 is provided at the front end of the terminal fastening seat 1, the first through slot 101 passes through the terminal fastening seat 1, a smooth slot 102 is provided downwardly on the top surface of the terminal fastening seat 1, the smooth slot 102 is communicated with the first through slot 101, a screw 2 is provided in the first through slot 101, the screw 2 is fixedly connected to the bottom surface of the first through slot 101, the screw 2 is arranged perpendicular to the horizontal plane, the smooth slot 102 is passed through by a screw 3, the screw 3 is threadedly connected to the screw 2, a limiting ring 304 is provided in the first through slot 101, the screw 3 comprises a screw 3 head, a smooth screw 3 rod and an internal thread groove 303, the outer surface of the smooth screw 3 rod The wall is smooth, the smooth screw 3 rod passes through the first through groove 101 and the outer wall of the smooth screw 3 rod is in contact with the side wall of the smooth groove 102, the top of the smooth screw 3 rod is fixedly provided with a screw 3 head, the bottom surface of the smooth screw 3 rod is upwardly provided with an internal thread groove 303, the internal thread groove 303 is threadedly engaged with the screw rod 2, the height of the internal thread groove 303 is the same as the height of the screw rod 2, the smooth screw 3 rod passes through the limiting ring 304 and is fixedly connected to the limiting ring 304, the bottom surface of the smooth screw 3 rod and the bottom surface of the limiting ring 304 are in the same horizontal plane, the outer diameter of the limiting ring 304 is slightly larger than the outer diameter of the smooth groove 102, and the outer diameter of the screw 3 head is slightly larger than the outer diameter of the smooth groove 102;

[0024] When the fastener is connected to the wiring terminal, the connecting hole of the connecting terminal is sleeved outside the screw rod 2, and then the screw 3 is threadedly connected to the screw rod 2, so that the bottom surface of the smooth screw 3 rod is tightly pressed against the connecting terminal, the outer diameter of the limiting ring 304 is slightly larger than the outer diameter of the smooth groove 102, and the outer diameter of the screw 3 head is slightly larger than the outer diameter of the smooth groove 102. After the screw 3 is disconnected from the screw 2, since the outer diameter of the limiting ring 304 is slightly larger than the outer diameter of the smooth groove 102, the screw 3 cannot be detached from the terminal fastening seat 1, and the outer wall of the smooth screw 3 rod is smooth, ensuring that the smooth screw 3 rod can slide and rotate in the smooth groove 102. The top surface of the screw 3 head of the screw 3 is downwardly provided with a flat or cross-shaped groove, so that the screw 3 can be connected to the screw 2 by a common screwdriver.

[0025] The bottom surface of the screw rod 2 is upwardly provided with a second through groove 201, and the second through groove 201 passes through the front and rear ends of the screw rod 2;

[0026] The screw rod 2 is provided with a second through slot 201, so that the fastener can be directly connected to the wire. When the fastener is directly connected to the wire, the outer insulating material of one end of the wire is stripped off, and then the end of the wire stripped of the insulating material is passed through the second through slot 201, and then the screw 3 is threadedly connected to the screw rod 2, and the bottom end of the screw 3 is pressed against the wire to connect the wire to the fastener.

[0027] The terminal fastening seat 1, the screw 3 and the limiting ring 304 are made of metal, and the outer surfaces of the terminal fastening seat 1, the screw 3 and the limiting ring 304 are plated with a uniform and dense layer of tin;

[0028] The outer surfaces of the terminal fastening base 1, screw 3 and limiting ring 304 are plated with a uniform and dense layer of tin, which can reduce the probability of rusting of the terminal fastening base 1, screw 3 and limiting ring 304, and effectively improve the service life of the terminal fastening base 1, screw 3 and limiting ring 304.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tinned fastener for a terminal, comprising a terminal fastening seat (1), characterized in that: The front end of the terminal fastening seat (1) is provided with a first through groove (101), the first through groove (101) passes through the terminal fastening seat (1), the top surface of the terminal fastening seat (1) is provided with a smooth groove (102) facing downward, the smooth groove (102) is communicated with the first through groove (101), a screw rod (2) is arranged in the first through groove (101), the screw rod (2) is fixedly connected to the bottom surface of the first through groove (101), the screw rod (2) is arranged perpendicular to the horizontal plane, the smooth groove (102) is passed through by a screw (3), the screw (3) is threadedly connected to the screw rod (2), and a limiting ring (304) is arranged in the first through groove (101).

2. The tinned fastener for a terminal block according to claim 1, characterized in that: The screw (3) comprises a screw head (301), a smooth screw rod (302) and an internal thread groove (303); the outer wall of the smooth screw rod (302) is smooth; the smooth screw rod (302) passes through the first through groove (101) and the outer wall of the smooth screw rod (302) is in contact with the side wall of the smooth groove (102); the top of the smooth screw rod (302) is fixedly provided with a screw head (301); the bottom surface of the smooth screw rod (302) is provided with an internal thread groove (303) facing upward; the internal thread groove (303) is threadedly engaged with the screw rod (2); and the height of the internal thread groove (303) is the same as the height of the screw rod (2).

3. The tinned fastener for a terminal block according to claim 2, characterized in that: The smooth screw rod (302) passes through the limiting ring (304) and is fixedly connected to the limiting ring (304); the bottom surface of the smooth screw rod (302) and the bottom surface of the limiting ring (304) are in the same horizontal plane; the outer diameter of the limiting ring (304) is slightly larger than the outer diameter of the smooth groove (102); and the outer diameter of the screw head (301) is slightly larger than the outer diameter of the smooth groove (102).

4. The tinned fastener for a terminal block according to claim 1, characterized in that: A second through groove (201) is provided upwardly on the bottom surface of the screw rod (2), and the second through groove (201) passes through the front and rear ends of the screw rod (2).

5. The tinned fastener for a terminal block according to claim 1, characterized in that: The terminal fastening seat (1), the screw (3) and the limiting ring (304) are made of metal, and the outer surfaces of the terminal fastening seat (1), the screw (3) and the limiting ring (304) are all plated with a layer of uniform and dense tin.

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