Terminal strip with anti-miscontact function of terminal

Abstract

The utility model relates to a terminal row, concretely relates to a terminal row with wire end mistaken touch prevention function. Including base, the top fixed mounting of base has the terminal strip, is equipped with a plurality of terminal holes on the terminal strip. The utility model discloses when the wire end is inserted into the inside of terminal hole, through the distance adjusting mechanism drive two clamps to be close to each other, until the rubber pad on it mutually contacts, two rubber pads splice to form an approximate complete annular rubber ring at this moment, the circumference inner wall of this rubber ring is in close contact with the wire, and its axis is collinear with the axis of terminal hole, the outer diameter of rubber ring matches with the inner diameter of terminal hole, and the inner diameter is closely combined with the wire outer diameter, thereby the original dangerous gap between the wire and the inner wall of terminal hole is blocked, the possibility that the tool or foreign matter accidentally explores into the inside of terminal hole is eliminated, effectively prevents the operator mistaken touch live part inside the terminal strip, and the safety when the operator is wiring is improved.

Description

Technical Field

[0001] This utility model relates to a terminal block, specifically, to a terminal block with a terminal anti-accidental contact function. Background Technology

[0002] Terminal blocks (also known as terminal blocks or terminal boards) are standardized electrical connection devices. Their basic structure consists of an insulating base and a terminal board with multiple wiring holes arranged side by side. Their core function is to provide a centralized, reliable, and easy-to-install and maintain connection point for multiple wires. Each wiring hole is equipped with a metal conductive terminal, and its inner diameter is usually designed to be slightly larger than the typical outer diameter of the wires to be accommodated.

[0003] However, in practical applications, the outer diameter of the wires used varies. When the wire is thin, a noticeable annular gap is formed between its outer edge and the inner wall of the wiring hole. This gap poses a safety hazard: when operators are performing wiring or maintenance operations in adjacent wiring holes, the tips of tools such as screwdrivers used can easily pass through this gap and directly contact the internal live metal conductor, thus causing an electric shock accident.

[0004] In existing technologies, shielding components with rubber rings are often used to cover the annular gap. However, the gap between the rubber ring and the wire in fixed shielding components is usually too small and cannot be adjusted, which can easily hinder the smooth insertion of the wire into the terminal block and cause inconvenience to the wiring work. If a snap-on shielding component is used, although the insertion resistance problem is solved, the shielding component is usually separated from the terminal block when not in use and is an independent component. This means that after the operator completes the wire connection, they still need to take out and install the shielding component. Because the shielding component is small, easy to lose, and inconvenient to carry and install, it is very easy to be overlooked or abandoned in actual operation, which cannot effectively ensure the timeliness and reliability of protection. Utility Model Content

[0005] The purpose of this invention is to provide a terminal block with anti-accidental contact function for the wiring terminals, so as to solve the problems mentioned in the background art above:

[0006] When operators work on adjacent wiring holes, the tips of tools such as screwdrivers can easily pass through the annular gap between the outer edge of the wire and the inner wall of the wiring hole, directly contacting the live metal conductor inside, thus causing an electric shock accident.

[0007] To address the above problems, this utility model aims to provide a terminal block with anti-accidental contact function, including a base. A terminal board is fixedly installed on the top of the base, and the terminal board has several wiring holes. A sealing mechanism is provided on one side of the terminal board at a position corresponding to each wiring hole. The sealing mechanism includes two horizontally sliding clamps on one side of the terminal board. An arc-shaped groove is provided on the side of the two clamps that are close to each other. A rubber pad is fixedly connected to the inner arc surface of the arc-shaped groove. An adjustment mechanism is provided on the upper side of the two clamps. The adjustment mechanism is used to drive the two clamps to move away from or closer to each other. When the end of the wire is inserted into the wiring hole, the adjustment mechanism drives the two clamps to move closer to each other until the ends of the two clamps contact each other. At this time, the two rubber pads are spliced ​​to form a rubber ring. The inner circumference of the rubber ring is in close contact with the wire, and the axis of the rubber ring is collinear with the axis of the wiring hole. The rubber ring seals the gap between the wire and the inner circumference of the wiring hole.

[0008] As a further improvement to this technical solution, two horizontally arranged T-shaped guide rails are fixedly connected to one side of the terminal block, and the two T-shaped guide rails are respectively located on the upper and lower sides of the wiring hole.

[0009] As a further improvement to this technical solution, the clamp plate is provided with matching T-shaped grooves on the side near the wiring board, corresponding to the two T-shaped guide rails, and the T-shaped guide rails are slidably disposed inside the corresponding T-shaped grooves.

[0010] As a further improvement to this technical solution, the adjusting mechanism includes a movable plate fixedly installed on the side wall of the clamp plate, and a threaded rod is horizontally rotatably connected to one side of the terminal block.

[0011] As a further improvement to this technical solution, both of the movable plates are threadedly connected to the threaded rod, and the threads of the two movable plates are in opposite directions. Both ends of the threaded rod are coaxially fixedly connected with bolt heads.

[0012] As a further improvement to this technical solution, a gap is left between two adjacent sealing mechanisms. When the adjusting mechanism drives the two clamps to move away from each other, the clamps drive the corresponding rubber pads to move synchronously, so that the distance between the ends of the two rubber pads is greater than the outer diameter of the wiring hole.

[0013] As a further improvement to this technical solution, a protective cover is snapped and fixed to the upper side wall of the base, and the wiring board and the sealing mechanism are both located inside the protective cover. An opening is provided on the side of the protective cover near the sealing mechanism.

[0014] As a further improvement to this technical solution, a clamping bolt is threadedly connected to the top of the terminal block at the position corresponding to each terminal hole, and the lower end of the clamping bolt extends into the corresponding terminal hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This terminal block with anti-accidental contact function at the wiring end, when the end of the wire is inserted into the wiring hole, drives the two clamps to approach each other by rotating the threaded rod until the rubber pads on them contact each other. At this time, the two rubber pads are spliced ​​to form an almost complete annular rubber ring. The inner wall of the rubber ring is in close contact with the wire, and its axis is collinear with the axis of the wiring hole. The outer diameter of the rubber ring matches the inner diameter of the wiring hole, and the inner diameter is in close contact with the outer diameter of the wire, thereby sealing the original dangerous gap between the wire and the inner wall of the wiring hole, eliminating the possibility of tools or foreign objects accidentally entering the wiring hole, effectively preventing operators from accidentally touching the live parts inside the terminal block, and improving the safety of operators when wiring. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0019] Figure 3 This is the second partial structural schematic diagram of the present utility model;

[0020] Figure 4 This is one of the cross-sectional views of a portion of the structure of this utility model;

[0021] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point A in the middle;

[0022] Figure 6 This is a second cross-sectional view of a portion of the structure of this utility model.

[0023] The meanings of the labels in the diagram are as follows:

[0024] 1. Base;

[0025] 2. Terminal block; 21. Wiring hole; 22. T-shaped guide rail;

[0026] 3. Tighten the bolts;

[0027] 4. Sealing mechanism; 41. Clamping plate; 42. Rubber pad; 43. Moving plate; 44. Threaded rod; 45. Bolt head;

[0028] 5. Protective cover; 51. Opening. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Please see Figure 1 and Figure 2 As shown, the purpose of this embodiment is to provide a terminal block with a terminal anti-accidental contact function, including a base 1, a terminal block 2 fixedly installed on the top of the base 1, a plurality of wiring holes 21 for connecting wires are opened on the terminal block 2 along its length direction, the wiring holes 21 are circular holes, and a clamping bolt 3 is threadedly connected to the top of the terminal block 2 at the position corresponding to each wiring hole 21, the lower end of the clamping bolt 3 extends into the corresponding wiring hole 21.

[0032] When wiring, insert the end of the wire into the target wiring hole 21, ensuring that it is directly below the corresponding clamping bolt 3. Then, the operator uses a screwdriver or wrench to turn the clamping bolt 3, causing it to move downwards under the action of the thread. Finally, the lower end face of the clamping bolt 3 works together with the inner circumference of the wiring hole 21 to form a clamping force, thereby firmly fixing the end of the wire and completing one wiring operation.

[0033] A protective cover 5 is snapped and fixed to the upper side wall of the base 1. The protective cover 5 is detachable. The wiring board 2 is located inside the protective cover 5, which effectively avoids the risk of the wiring board 2 being damaged by accidental impact from external hard objects. It also prevents personnel or foreign objects from accidentally touching the live wiring terminals, thus improving operational safety. In order to facilitate wiring operations, an opening 51 is provided on one side of the protective cover 5. The operator can accurately insert the end of the wire into the target wiring hole 21 through this opening 51.

[0034] To facilitate the insertion of the wire end into the target wiring hole 21, the inner diameter of the wiring hole 21 is designed to be larger than the typical outer diameter of the wire it needs to accommodate. However, the actual outer diameter of different wires varies. When the end of a thinner wire is inserted into the wiring hole 21, a large annular gap will be generated between the wire and the inner circumference of the wiring hole 21. This gap poses a safety hazard: when the operator is working on an adjacent wiring hole 21, the tip of a screwdriver or other tool may accidentally be inserted into the wiring hole 21 through this gap, coming into contact with the live conductor inside, thus causing an electric shock risk.

[0035] To eliminate this risk, refer to Figure 3A sealing mechanism 4 is provided on one side of the terminal block 2 at a position corresponding to each terminal hole 21. The sealing mechanism 4 is located on the side of the terminal block 2 near the opening 51. The sealing mechanism 4 includes two clamping plates 41 that are horizontally slidably disposed on one side of the terminal block 2. Specifically, two horizontally disposed T-shaped guide rails 22 are fixedly connected to one side of the terminal block 2. The two T-shaped guide rails 22 are respectively located on the upper and lower sides of the terminal hole 21. The clamping plate 41 is provided with a matching T-shaped groove at the position corresponding to the two T-shaped guide rails 22 on the side near the terminal block 2. The T-shaped guide rails 22 are slidably disposed inside the corresponding T-shaped grooves. The T-shaped grooves and T-shaped guide rails 22 cooperate to constrain the clamping plate 41 to move only horizontally. The side of the two clamping plates 41 that is close to each other is provided with an arc groove. A rubber pad 42 is fixedly connected to the inner arc surface of the arc groove. An adjustment mechanism is provided on the upper side of the two clamping plates 41. The adjustment mechanism is used to drive the two clamping plates 41 to move away from or closer to each other.

[0036] It is worth noting that a gap is left between two adjacent blocking mechanisms 4. This is to ensure the independent operation of each blocking mechanism 4, as shown in the reference. Figure 6 In the initial unconnected state, the operator drives the two clamps 41 to move away from each other through the adjusting mechanism. At this time, the clamps 41 drive the rubber pads 42 on them to move outward synchronously, so that the distance between the ends of the two rubber pads 42 is greater than the outer diameter of the wiring hole 21. This design effectively avoids the rubber pads 42 from obstructing the operation of the wire. The operator can easily pass the wire through the gap between the two rubber pads 42 and smoothly insert it into the wiring hole 21.

[0037] When the end of the wire is inserted into the wiring hole 21, the operator drives the two clamps 41 to move closer together through the adjusting mechanism until the ends of the two clamps 41 contact each other. At this time, the two rubber pads 42 are spliced ​​together to form an almost complete annular rubber ring. The inner circumference of the rubber ring is in close contact with the wire, and the axis of the rubber ring is collinear with the axis of the wiring hole 21. The outer diameter of the rubber ring matches the inner diameter of the wiring hole 21, and its inner diameter is in close contact with the outer diameter of the wire. This completely seals the original dangerous gap between the wire and the inner circumference of the wiring hole 21, eliminating the possibility of any tool or foreign object accidentally entering the wiring hole 21 through the gap. This fundamentally prevents the operator from accidentally touching the internal live parts and improves the safety of operation.

[0038] The following details the structure of the adjusting mechanism, referring to... Figures 4-6 The adjusting mechanism includes a movable plate 43 fixedly installed on the upper side wall of the clamping plate 41, a threaded rod 44 horizontally rotatably connected to one side of the wiring plate 2, both movable plates 43 are threadedly connected to the threaded rod 44, and the threads of the two movable plates 43 are opposite in direction. Both ends of the threaded rod 44 are coaxially fixedly connected to bolt heads 45.

[0039] The operator uses tools (such as a wrench or Torx screwdriver) to rotate the threaded rod 44. Based on the threaded connection between the threaded rod 44 and the moving plate 43 (especially the opposite direction of rotation), rotating the threaded rod 44 will precisely drive the two moving plates 43 to move closer or further apart synchronously. The moving plates 43 then drive the corresponding clamping plates 41 to move horizontally along the path defined by the T-shaped guide rail 22. When the operation target is to clamp the wire (i.e., rotate the threaded rod 44 to bring the two clamping plates 41 closer together), the two rubber pads 42 will finally be tightly spliced ​​to form a complete rubber ring. As mentioned above, this rubber ring will tightly seal the annular gap between the wire and the wiring hole 21, effectively completing the safety protection against accidental contact of the wire.

[0040] The key structural components of this device, such as the base 1, wiring board 2, protective cover 5, clamping plate 41, and clamping bolts 3, are all made of high-performance engineering plastics (such as reinforced nylon, PBT, etc.). These materials not only have excellent mechanical strength, but more importantly, they have good insulation properties, which can effectively avoid the risk of leakage during the use of the device and further ensure the safety of personnel and equipment.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A terminal block with anti-accidental contact function, comprising a base (1), wherein a wiring plate (2) is fixedly mounted on the top of the base (1), and the wiring plate (2) is provided with a plurality of wiring holes (21), characterized in that: A sealing mechanism (4) is provided on one side of the terminal block (2) at the position corresponding to each terminal hole (21). The sealing mechanism (4) includes two horizontally sliding clamps (41) on one side of the terminal block (2). An arc groove is provided on the side of the two clamps (41) that are close to each other. A rubber pad (42) is fixedly connected to the inner arc surface of the arc groove. An adjustment mechanism is provided on the upper side of the two clamps (41). The adjustment mechanism is used to drive the two clamps (41) to move away from each other or closer to each other. When the end of the wire is inserted into the inside of the terminal hole (21), the adjustment mechanism drives the two clamps (41) to move closer to each other until the ends of the two clamps (41) contact each other. At this time, the two rubber pads (42) are spliced ​​together to form a rubber ring. The inner circumference of the rubber ring is in close contact with the wire, and the axis of the rubber ring is collinear with the axis of the terminal hole (21). The rubber ring seals the gap between the wire and the inner circumference of the terminal hole (21).

2. The terminal strip with the mistaken touch prevention function of the terminal according to claim 1, characterized in that: Two horizontally arranged T-shaped guide rails (22) are fixedly connected to one side of the wiring board (2), and the two T-shaped guide rails (22) are located on the upper and lower sides of the wiring hole (21) respectively.

3. The terminal strip with the mistaken touch prevention function of claim 2, wherein: The clamp (41) has a matching T-shaped groove on the side near the wiring board (2) and corresponding to the two T-shaped guide rails (22). The T-shaped guide rails (22) are slidably disposed inside the corresponding T-shaped grooves.

4. The terminal strip with the mistaken touch prevention function of claim 1, wherein: The adjusting mechanism includes a movable plate (43) fixedly installed on the upper side wall of the clamp (41), and a threaded rod (44) is horizontally rotatably connected to one side of the wiring plate (2).

5. The terminal strip with the mistaken touch prevention function of claim 4, wherein: Both of the movable plates (43) are threadedly connected to the threaded rod (44), and the threads of the two movable plates (43) are in opposite directions. Both ends of the threaded rod (44) are coaxially fixedly connected with bolt heads (45).

6. The terminal strip with the mistaken touch prevention function of the terminal according to claim 1, characterized in that: There is a gap between two adjacent sealing mechanisms (4). When the adjusting mechanism drives the two clamps (41) to move away from each other, the clamps (41) drive the corresponding rubber pads (42) to move synchronously, so that the distance between the ends of the two rubber pads (42) is greater than the outer diameter of the wiring hole (21).

7. The terminal strip with the mistaken touch prevention function of the connection end according to claim 1, characterized in that: The upper side wall of the base (1) is fixed with a protective cover (5). The wiring board (2) and the sealing mechanism (4) are both located inside the protective cover (5). The protective cover (5) has an opening (51) on the side near the sealing mechanism (4).

8. The terminal strip with the mistaken touch prevention function of the terminal according to claim 1, characterized in that: The top of the terminal block (2) is threaded with a clamping bolt (3) at the position corresponding to each terminal hole (21), and the lower end of the clamping bolt (3) extends into the corresponding terminal hole (21).

Images