A control cabinet quick wiring terminal rack

Abstract

The utility model provides a control cabinet quick wiring terminal block, including terminal base, both ends of terminal base are fixedly installed with two corresponding setting rotation seat, card arm fixed mounting is installed on the pivot of two rotation seat rotation installation, wherein the torsional spring is installed between card arm and rotation seat, every card arm can be clamped in the corresponding clamping groove of terminal installation guide rail row, the positioning block of terminal installation guide rail row top setting corresponds with the positioning slot of terminal base setting, and the mounting hole is opened in all perforation on terminal base and terminal installation guide rail row, the utility model discloses through rotation seat, card arm and torsional spring cooperation, realize terminal installation guide rail row and base quick clamping separation, need not tool, save time and efficient, the head and clamping groove, positioning block and positioning slot adaptation, anti -skidding block, need not spacing plate. Compact structure, adaptation multiple scene, strong versatility.

Description

Technical Field

[0001] This utility model belongs to the technical field of terminal block racks, and particularly relates to a quick-connect terminal block rack for control cabinets. Background Technology

[0002] Terminal blocks are core components in control cabinets for centralized connection and organized wiring of electrical circuits. Their structural rationality directly affects wiring efficiency, circuit stability, and ease of maintenance. In the field of industrial control, the assembly method of terminal blocks and terminal blocks is a key factor affecting overall wiring efficiency.

[0003] The assembly of traditional terminal blocks with terminal blocks or terminal frames is generally cumbersome: most require the use of screwdrivers or other tools to fasten them with screws. This not only requires carrying extra tools, but also requires tightening screws one by one for the installation and removal of each terminal. In batch wiring scenarios, this greatly increases the time cost for operators.

[0004] Some improved terminals use a spring-loaded locking structure for quick fixation, which reduces tool reliance to some extent, but still has significant drawbacks: these terminals lack reliable anti-slip positioning. During control cabinet operation, they are easily slipped along the axial direction of the terminal frame or terminal block due to external forces such as vibration and wire pulling, leading to poor wiring contact or disordered terminal arrangement. To solve this problem, existing solutions usually require additional terminal limiting plates to be installed on the side of the terminal frame to physically restrict terminal displacement. However, this not only increases the number of parts and assembly steps but also occupies limited space within the control cabinet, making it inconvenient to add, remove, or adjust the position of terminals, and reducing wiring flexibility.

[0005] Therefore, it is essential to invent a quick-connect terminal block for control cabinets. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a quick-connect terminal block for a control cabinet, including a terminal base, a rotating base, a locking arm, a torsion spring, a terminal mounting guide rail, a locking slot, a positioning block, a positioning groove, and mounting holes. Two corresponding rotating bases are fixedly installed at both ends of the terminal base. The locking arm is fixedly installed on a rotating shaft on which the two rotating bases are rotatably mounted. A torsion spring is installed between the locking arm and the rotating base. Each locking arm can be locked into a corresponding locking slot in the terminal mounting guide rail. The positioning block above the terminal mounting guide rail corresponds to the positioning groove on the terminal base. Mounting holes are provided through both the terminal base and the terminal mounting guide rail.

[0007] Preferably, the terminal base is of a "convex" shape structure, and turntables are fixedly installed on the upper surfaces of its two ends in a corresponding manner. The positioning groove is penetrated and opened at one end of the terminal base and is located on one side between the two turntables.

[0008] Preferably, a rotating shaft is rotatably installed on each group of turntables, and a corresponding clamping arm is fixedly installed on each rotating shaft. Torsion springs installed on both sides of the clamping arm are sleeved on the outer positions of both ends of the rotating shaft. The clamping arm is of a "5" shape structure, the lower end head thereof is a triangular geometric clamping head, which corresponds to the clamping groove arranged on the terminal installation guide rail row, and the upper end of the clamping arm is an inclined part.

[0009] Preferably, by simply拨动 the inclined part at the upper end of the clamping arm, the clamping arm can make an arc movement with the axis of the rotating shaft rotatably installed on each group of turntables as the center of the circle, and the clamping head at the lower end of the clamping arm moving along an arc track can be disengaged from the clamping groove.

[0010] Preferably, the clamping grooves are arranged at equal intervals along the axial direction of the terminal installation guide rail row and are located on the lower surfaces on both sides of the terminal installation guide rail row. A plurality of positioning blocks are arranged at equal intervals along the axial direction on the upper surfaces at both ends of the terminal installation guide rail row.

[0011] Compared with the prior art, the utility model has the following beneficial effects: Through the cooperation structure of the turntable, the clamping arm and the torsion spring, the utility model realizes the quick clamping and separation of the terminal installation guide rail row and the terminal base. By simply拨动 the inclined part at the upper end of the clamping arm, the clamping arm can make an arc movement around the rotating shaft and disengage from the clamping groove without the aid of additional tools. Compared with the traditional screw fixing method, the installation and disassembly time is greatly shortened; and the setting of the torsion spring can provide continuous elastic force when the clamping arm is not拨动, ensuring that the clamping head is stably clamped in the clamping groove, taking into account both quick operation and connection reliability, and effectively improving the operation efficiency in the batch wiring scenario.

[0012] The triangular clamping head at the lower end of the clamping arm of the utility model is precisely adapted to the clamping groove on the terminal installation guide rail row. Combined with the pre-tightening force of the torsion spring, it can form a reliable axial limit on the terminal installation guide rail row, avoiding slippage when it is subjected to vibration or wire pulling; at the same time, the positioning block of the terminal installation guide rail row and the positioning groove of the terminal base are correspondingly matched, further improving the positioning accuracy and structural stability after the two are assembled. Without additionally setting a terminal limiting plate, the number of parts and space occupation are reduced, and the anti-slip problem of the traditional spring-clamped terminal is directly solved structurally.

[0013] It should be noted that the Chinese character "拨动" in the original text is directly used in the translation for the lack of a more appropriate English word at present. You can adjust it according to the actual situation.The terminal base of the utility model adopts a "convex" structure. The layout of the rotating base and the positioning groove makes full use of the installation space. The card slots are arranged at equal intervals along the axial direction of the terminal installation guide rail, and the installation position of the terminal on the guide rail can be flexibly adjusted according to actual wiring requirements. Installation holes are penetrated through both the terminal base and the guide rail, facilitating the quick fixation of the overall structure at different positions of the control cabinet, adapting to diverse wiring scenarios from small and medium-sized control cabinets to large industrial control devices, and enhancing the versatility and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 is a schematic diagram of the bottom structure of the utility model.

[0016] Figure 3 is a schematic diagram of the structure of the terminal base of the utility model.

[0017] Figure 4 is the utility model Figure 1 partial enlarged schematic diagram of part A.

[0018] In the figure: terminal base 1, rotating base 2, clamping arm 3, torsion spring 4, terminal installation guide rail 5, card slot 6, positioning block 7, positioning groove 8, installation hole 9. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the utility model.

[0020] In the description of the embodiments, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] As shown in the attached Figure 1 to the attached Figure 3 figures: A quick wiring terminal block for a control cabinet provided by the present invention includes a terminal base 1, a rotating base 2, a clamping arm 3, a torsion spring 4, a terminal installation guide rail row 5, a card slot 6, a positioning block 7, a positioning groove ⑧, and a mounting hole 9. Two corresponding rotating bases 2 are fixedly installed at both ends of the terminal base 1 respectively. The clamping arm 3 is fixedly installed on the rotating shaft on which the two rotating bases 2 are rotatably installed. A torsion spring 4 is installed between the clamping arm 3 and the rotating base 2; each clamping arm 3 can be clamped in the corresponding card slot 6 of the terminal installation guide rail row 5; the positioning block 7 provided above the terminal installation guide rail row 5 corresponds to the positioning groove 8 provided on the terminal base 1, and the mounting holes 9 penetrate through both the terminal base 1 and the terminal installation guide rail row 5.

[0022] Furthermore, the terminal base 1 is injection-molded from a high-strength flame-retardant nylon material and has an overall "convex" shape structure. Its protruding part is arranged upward to form a stable installation reference surface. Two corresponding rotating bases 2 are fixedly installed on the upper surfaces at both ends in the length direction of the terminal base 1. The rotating bases 2 are firmly connected to the terminal base 1 through an integral injection molding process, and a gap for the clamping arm 3 to rotate is reserved between each group of rotating bases 2. The positioning groove 8 is a rectangular through groove structure and is located on one side between the two rotating bases 2 at this end. The size of the positioning groove 8 is adapted to the size of the terminal base 1 and is used to form a precise fit with the positioning block 7 of the terminal installation guide rail row 5.

[0023] Furthermore, each set of rotating bases 2 has a metal shaft rotatably mounted on it through a shaft hole. Both ends of the shaft are clearance-fitted with the rotating base 2 to ensure smooth rotation. A corresponding locking arm 3 is fixedly mounted in the middle of each rotating base via an interference fit. The locking arm 3 is made of spring steel and is stamped into a "5" shape to balance structural strength and elastic deformation capability. Torsion springs 4 are mounted on both sides of the locking arm 3, respectively fitted onto the outer ends of the rotating base. One end of the torsion spring 4 is embedded in a pre-set groove in the rotating base 2, and the other end is connected to the side wall of the locking arm 3. The preload of the torsion spring 4 provides continuous return force to the locking arm 3. The lower end of the locking arm 3 is an isosceles triangular geometric locking head. The angle of the inclined surface of this locking head matches the inclined surface of the slot 6 set in the terminal mounting guide rail 5. The upper end of the locking arm 3 is an operating part tilted outward at 30°, facilitating operation by the operator's fingers.

[0024] Furthermore, when it is necessary to disassemble the terminal mounting guide rail 5, the operator only needs to use their finger to push the inclined part at the upper end of the locking arm 3 outward. Under the action of external force, the locking arm 3 will overcome the elastic force of the torsion spring 4 and move in an arc around the axis of rotation of each set of rotating seats 2, with its rotation angle range limited to 0°-45°. As the locking arm 3 moves in an arc trajectory, the triangular locking head at its lower end will swing outward synchronously, and finally completely disengage from the locking groove 6 of the terminal mounting guide rail 5, releasing the locking state of the terminal mounting guide rail 5. The entire operation can be completed without the aid of any tools.

[0025] Furthermore, the triangular groove structure of the slot 6, which matches the triangular head at the lower end of the arm 3, is equidistantly arranged along the axial direction of the terminal mounting guide rail 5 and symmetrically distributed on the lower surface of both sides of the terminal mounting guide rail 5. The terminal mounting guide rail 5 is made of aluminum alloy by extrusion molding. Several rectangular positioning blocks 7 are equidistantly arranged along its own axial direction on the upper surface of both sides. The positioning blocks 7 and the terminal mounting guide rail 5 are integrally formed. The spacing of the positioning blocks 7 is consistent with the spacing of the slot 6. The size of the positioning blocks 7 matches the size of the positioning groove 8 on the terminal base 1 to ensure that there is no axial movement after the two are fitted together.

[0026] The working principle is as follows: First, the terminal base 1 is fixed in the preset position of the control cabinet through the through mounting hole 9 to form a stable mounting base.

[0027] Next, the terminal base 1 with the wiring terminals installed is placed on the raised reference surface of the terminal mounting guide rail 5, so that the positioning groove 8 on the terminal base 1 is precisely engaged with the positioning blocks 7 on both sides of the terminal mounting guide rail 5 to achieve preliminary positioning and limit the relative lateral displacement of the two.

[0028] At the same time, under the preload of the torsion spring 4, the isosceles triangular clip at the lower end of the clip arm 3 will naturally snap into the corresponding slots 6 on both sides of the terminal mounting guide rail 5. Through the inclined surface cooperation between the clip and the slot 6 and the continuous elastic force of the torsion spring 4, the terminal mounting guide rail 5 is firmly locked on the terminal base 1 to prevent it from sliding axially.

[0029] When it is necessary to adjust or remove the terminal mounting guide rail 5, push the inclined part of the upper end of the locking arm 3 outward so that the locking arm 3 overcomes the elastic force of the torsion spring 4 and moves in an arc with the rotating shaft on the rotating seat 2 as the center. The lower end of the locking head swings outward and disengages from the locking groove 6, releasing the locking state. At this time, the terminal mounting guide rail 5 can be directly removed or moved.

[0030] After the adjustment is completed, release the locking arm 3. The reset force of the torsion spring 4 will cause the locking arm 3 to rotate in the opposite direction, and its lower end locking head will re-engage into the corresponding slot 6, achieving stable locking again. The whole process does not require tool assistance and is convenient and efficient to operate.

[0031] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A quick-connect terminal block for a control cabinet, characterized in that, It includes a terminal base (1), a swivel base (2), a clamping arm (3), a torsion spring (4), a terminal mounting guide rail row (5), a card slot (6), a positioning block (7), a positioning groove (8) and a mounting hole (9). Two corresponding swivel bases (2) are fixedly installed at both ends of the terminal base (1). The clamping arm (3) is fixedly installed on the rotating shaft of the two swivel bases (2). A torsion spring (4) is installed between the clamping arm (3) and the swivel base (2). Each clamping arm (3) can be clamped in the corresponding card slot (6) of the terminal mounting guide rail row (5). The positioning block (7) provided above the terminal mounting guide rail row (5) corresponds to the positioning groove (8) provided on the terminal base (1). The mounting holes (9) are penetrated through the terminal base (1) and the terminal mounting guide rail row (5).

2. The quick-connect terminal block for a control cabinet as described in claim 1, characterized in that: The terminal base (1) has a "convex" - shaped structure. The swivel bases (2) are fixedly installed on the upper surfaces at both ends in a corresponding manner. The positioning groove (8) is penetrated through one end of the terminal base (1) and is located on one side between the two swivel bases (2).

3. The quick-connect terminal block for a control cabinet as described in claim 2, characterized in that: Each group of swivel bases (2) is rotatably installed with a rotating shaft, and a corresponding clamping arm (3) is fixedly installed on each rotating shaft. The torsion springs (4) installed on both sides of the clamping arm (3) are sleeved on the outer positions at both ends of the rotating shaft. The clamping arm (3) has a "5" - shaped structure. The lower end of it is a triangular geometric clamping head, which corresponds to the card slot (6) provided on the terminal mounting guide rail row (5). The upper end of the clamping arm (3) is an inclined part.

4. A quick-connect terminal block for a control cabinet as described in claim 3, characterized in that: Just by拨动 the inclined part at the upper end of the clamping arm (3), it can make an arc - shaped movement with the axis of the rotating shaft rotatably installed on each group of swivel bases (2) as the center. When the clamping arm (3) makes an arc - shaped movement, the clamping head at the lower end of the clamping arm (3) can be disengaged from the card slot (6).

5. A quick-connect terminal block for a control cabinet as described in claim 4, characterized in that: The card slots (6) are arranged at equal intervals along the axis of the terminal mounting guide rail row (5) and are located on the lower surfaces on both sides of the terminal mounting guide rail row (5). A number of the positioning blocks (7) are arranged at equal intervals along the axis on the upper surfaces at both ends of the terminal mounting guide rail row (5). It should be noted that in the original text, "拨动" is a Chinese word, and it should be replaced with the correct English expression according to the context. Here, it can be "flick" or "push and move" etc. The above translation uses "flick" for reference. You can adjust it according to the actual situation.

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