Cable interlocking limiting mechanism

Abstract

The utility model relates to the technical field of electrical equipment, in particular to a fixed base which is provided with a moving part in a sliding mode, and a transmission mechanism arranged on the fixed base is movably connected with the moving part. A steel wire in one end of the flexible shaft is connected with the transmission mechanism, the other end of the flexible shaft is connected with the locking mechanism, a steel wire in the other end of the flexible shaft is connected with the locking mechanism, one end of the flexible shaft is installed on the fixed base, and the locking mechanism is installed on the fixed base; when the moving part moves, the transmission mechanism is driven to pull the steel wire in the flexible shaft, and the steel wire in the flexible shaft enables the locking mechanism to conduct unlocking. Through the innovative flexible shaft transmission and the integrated handle, the problems of space limitation, high cost and inconvenient operation of a traditional low-voltage switchgear interlocking mechanism are solved, the flexible shaft is used for replacing a rigid mechanical connecting rod, the occupied space is reduced, the cost of a complex structure is reduced, remote control can be supported, the flexible shaft transmission is flexible, the space is saved, and the operation is convenient. The structure is simplified and cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a cable interlocking limiting mechanism. Background Technology

[0002] In the field of low-voltage power complete sets of equipment, mechanical interlocking mechanisms are the core components that ensure the safety of equipment operation. Traditional technologies generally adopt a transmission method that combines a separate handle with a rigid mechanical linkage, which has the following significant drawbacks:

[0003] Poor spatial adaptability: Rigid connecting rods need to be arranged in a straight line and have high installation accuracy requirements, making them difficult to install effectively in compact cabinets or complex layout scenarios, which seriously restricts the miniaturization of equipment;

[0004] High maintenance costs: Multi-point mechanical structures are prone to transmission failure due to wear and tear, requiring frequent maintenance; Separate handles pose a risk of loss, increasing spare parts management costs;

[0005] Limited functional expansion: The existing interlocking mechanism cannot be compatible with remote control requirements and cannot be adapted to different specifications of door lock devices, which restricts the intelligent upgrading of the equipment;

[0006] Insufficient safety redundancy: Traditional limit mechanisms mostly use a single mechanical limit method, which is prone to interlock failure under vibration or misoperation conditions, posing a safety hazard;

[0007] Although some improvement solutions attempt to use integrated handles and cable drives, problems such as flexible shaft positioning misalignment and transmission efficiency attenuation still exist, making it difficult for the interlocking action to meet the high safety standards of power equipment. Utility Model Content

[0008] The present invention aims to solve the above-mentioned defects and provide a cable interlocking limiting mechanism.

[0009] In order to overcome the defects in the background technology, the technical solution adopted by this utility model to solve its technical problem is: a cable interlocking limiting mechanism, including a fixed base, a movable part slidably arranged on it, and a transmission mechanism arranged on it being movably connected to the movable part;

[0010] A flexible shaft has a steel wire inside one end connected to a transmission mechanism and a locking mechanism at the other end. The steel wire inside the other end is also connected to the locking mechanism. One end of the flexible shaft is mounted on the fixed base, and the locking mechanism is mounted on the fixed base.

[0011] When the moving part is displaced, it drives the transmission mechanism to pull the steel wire inside the flexible shaft, and the steel wire inside the flexible shaft causes the locking mechanism to unlock.

[0012] Further improvements include the transmission mechanism comprising a linked rocker arm rotatably mounted on the fixed base, one end of the linked rocker arm being connected to a wire lock and the other end being movably connected to a moving part, the wire lock being connected to a wire inside the flexible shaft.

[0013] Further improvements include an oblong hole at the end of the connecting rocker arm, and the oblong hole contains a connecting pin that connects to the moving part.

[0014] Further improvements include a locking mechanism comprising a flange assembly, a limiting pin disposed within a pin hole inside the flange assembly, a circumferential arc-shaped guide groove on the flange assembly for accommodating a mounting portion, the circumferential arc-shaped guide groove communicating with the pin hole, a mounting portion rotatably disposed within the circumferential arc-shaped guide groove, a sector-shaped locking tongue connected to the mounting portion for locking, the limiting pin extending into the circumferential arc-shaped guide groove to restrict the movement of the sector-shaped locking tongue, and a steel wire inside the flexible shaft connected to the limiting pin.

[0015] Further improvements include a fixing plate disposed on the fixing base, and a locking mechanism installed on the fixing plate.

[0016] Further improvements include an adjustable bracket mounted on the fixed base, with one end of the flexible shaft mounted on the adjustable bracket.

[0017] The beneficial effects of this utility model are as follows: This design is used to control the opening and closing interlocking of cabinet doors, and is suitable for cabinet structures that require flexible layout. It can also adapt to the interlocking requirements of different installation positions through the extension of the flexible shaft. Using the flexible shaft to replace the rigid mechanical linkage reduces space occupation, lowers the cost of complex structures, and supports remote control. At the same time, the flexible shaft drive is flexible and saves space, simplifies the structure, reduces costs, adapts to multiple scenarios, and prevents the risk of loss. Through the innovative flexible shaft drive and integrated handle, it solves the problems of space limitation, high cost, and inconvenient operation of traditional low-voltage switchgear interlocking mechanisms. It is particularly suitable for the field of power complete sets of equipment that require flexible layout and high safety standards. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 It is the axial side of this utility model Figure 1 ;

[0020] Figure 2 It is the axial side of this utility model Figure 2 ;

[0021] Figure 3 It is the axial side of this utility model Figure 3 ;

[0022] Figure 4 This is the left view of this utility model;

[0023] Figure 5 This is the front view of this utility model;

[0024] In the diagram, 1-flexible shaft, 2-coupling rocker arm, 3-connecting pin, 4-wire lock, 5-waist-shaped hole, 6-moving part, 7-fan-shaped locking tongue, 8-circumferential arc-shaped guide groove, 9-limiting pin, 10-flange assembly, 11-adjustable bracket, 12-fixed base, 13-fixed plate, 14-pin hole, 15-mounting part, 16-rotating shaft part. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort in accordance with the embodiments of the basic utility model are within the scope of protection of this utility model.

[0026] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a cable interlocking limiting mechanism includes a fixed base 12, on which a movable part 6 is slidably disposed, and a transmission mechanism disposed thereon is movably connected to the movable part 6.

[0027] A flexible shaft 1 has a steel wire inside one end connected to a transmission mechanism and a locking mechanism at the other end. The steel wire inside the other end is connected to the locking mechanism for locking and unlocking. One end of the flexible shaft 1 is mounted on the fixed base 12, and the locking mechanism is mounted on the fixed base 12.

[0028] When the moving part 6 is displaced, it drives the transmission mechanism to pull the steel wire in the flexible shaft 1, and the steel wire in the flexible shaft 1 causes the locking mechanism to unlock.

[0029] In this embodiment, the transmission mechanism includes a linked rocker arm 2 rotatably mounted on the fixed base 12. One end of the linked rocker arm 2 is connected to a wire lock 4, and the other end is movably connected to a moving member 6, thereby converting the linear motion of the moving member 6 into the rotational motion of the linked rocker arm 2. The wire lock 4 is connected to the wire inside the flexible shaft 1. Specifically, when the moving member 6 is displaced, it drives the linked rocker arm 2 to rotate around its pivot point, causing the wire lock 4 to be displaced and pull the wire inside the flexible shaft 1.

[0030] In this embodiment, the end of the linked rocker arm 2 is provided with a waist-shaped hole 5, and the waist-shaped hole 5 contains a connecting pin 3 connected to the moving part 6. Through this design, the linear motion of the moving part 6 is effectively converted into the rotational motion of the linked rocker arm 2, realizing the conversion and transmission of motion form.

[0031] In this embodiment, the locking mechanism includes a flange assembly 10. A limiting pin 9 is disposed in a pin hole 14 inside the flange assembly 10. A circumferential arc-shaped guide groove 8 for accommodating a mounting part 15 is provided on the flange assembly 10. The circumferential arc-shaped guide groove 8 is interconnected with the pin hole 14. The mounting part 15 is rotatably disposed in the circumferential arc-shaped guide groove 8. A sector-shaped locking tongue 7 for locking is connected to the mounting part 15. The limiting pin 9 extends into the circumferential arc-shaped guide groove 8 to restrict the movement of the sector-shaped locking tongue 7, thereby locking. The steel wire inside the flexible shaft 1 is connected to the limiting pin 9, thereby pushing the limiting pin 9 to limit the sector-shaped locking tongue 7. After the steel wire inside the flexible shaft 1 is stressed, it pulls the limiting pin 9 to move, so that the sector-shaped locking tongue 7, which was originally restricted by the limiting pin 9, can rotate and thus hide in the circumferential arc-shaped guide groove 8, realizing the unlocking action.

[0032] In this embodiment, a rotating shaft 16 is provided within the circumferential arc-shaped guide groove 8, and the rotating shaft 16 is coaxially rotatably connected to the mounting part 15. This ensures that the mounting part 15 and the connected sector-shaped locking tongue 7 can rotate smoothly and accurately within the circumferential arc-shaped guide groove 8, meeting the movement requirements of the mechanism.

[0033] In this embodiment, a fixing plate 13 is disposed on the fixing base 12, and a locking mechanism is installed on the fixing plate 13.

[0034] In this embodiment, an adjustable bracket 11 is provided on the fixed base 12, and one end of the flexible shaft 1 is installed on the adjustable bracket 11 to ensure that the flexible shaft will not move when the internal steel wire of the flexible shaft 1 is pulled.

[0035] The flexible shaft is a spring-return push-pull flexible shaft, which has flexible guidance, push-pull transmission and automatic retraction functions. It can push the limit pin 9 to extend and limit the sector-shaped locking tongue 7 to achieve locking.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cable interlocking limiting mechanism, characterized in that, It includes a fixed base (12), on which a movable part (6) is slidably disposed, and a transmission mechanism disposed thereon is movably connected to the movable part (6); A flexible shaft (1) has a steel wire inside one end connected to a transmission mechanism and a locking mechanism at the other end. The steel wire inside the other end is connected to the locking mechanism. One end of the flexible shaft (1) is mounted on the fixed base (12), and the locking mechanism is mounted on the fixed base (12). When the moving part (6) is displaced, it drives the transmission mechanism to pull the steel wire in the flexible shaft (1), and the steel wire in the flexible shaft (1) causes the locking mechanism to unlock.

2. The cable interlocking limiting mechanism as described in claim 1, characterized in that: The transmission mechanism includes a rocker arm (2) rotatably mounted on the fixed base (12). One end of the rocker arm (2) is connected to a wire lock (4), and the other end is movably connected to a moving part (6). The wire lock (4) is connected to the wire inside the flexible shaft (1).

3. The cable interlocking limiting mechanism as described in claim 2, characterized in that: The end of the connecting rocker arm (2) is provided with a waist-shaped hole (5), and the waist-shaped hole (5) contains a connecting pin (3) that is connected to the moving part (6).

4. The cable interlocking limiting mechanism as described in claim 1, characterized in that: The locking mechanism includes a flange assembly (10), a limiting pin (9) is configured in a pin hole (14) inside the flange assembly (10), a circumferential arc-shaped guide groove (8) is provided on the flange assembly (10) for accommodating the mounting part (15), the circumferential arc-shaped guide groove (8) is connected to the pin hole (14), the mounting part (15) is rotatably arranged in the circumferential arc-shaped guide groove (8), a sector-shaped locking tongue (7) for locking is connected to the mounting part (15), the limiting pin (9) extends into the circumferential arc-shaped guide groove (8) to restrict the movement of the sector-shaped locking tongue (7), and the steel wire inside the flexible shaft (1) is connected to the limiting pin (9).

5. The cable interlocking limiting mechanism as described in claim 1, characterized in that: A fixing plate (13) is disposed on the fixing base (12), and a locking mechanism is installed on the fixing plate (13).

6. The cable interlocking limiting mechanism as described in claim 1, characterized in that: An adjustable bracket (11) is provided on the fixed base (12), and one end of the flexible shaft (1) is installed on the adjustable bracket (11).

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