Adjustable structure of release

Abstract

The utility model discloses an adjustable structure of a release. The problem that more deformation and force value requirements cannot be met in the prior art is mainly solved. The device is characterized by comprising at least two elastic pieces (3), one end of each elastic piece is connected with the adjusting rod, and the other end of each elastic piece is connected with the pull ring. The utility model provides an adjustable structure of a release, which can achieve the combination of more deformation and force values through the mode of combining the elastic pieces, and meanwhile, the load and fatigue resistance performance is better.

Description

Technical Field

[0001] The utility model relates to the field of switching electrical appliances, and particularly to an adjustable structure of a release. Background Art

[0002] The adjustable mechanism of the release of a conventional circuit breaker can refer to the Chinese patent with the publication number of CN 114975026 A. A knob is used to drive a regulating rod to rotate to realize the tightness of a spring. The prior art uses a single spring to achieve this. However, when used in a small space, the elastic force value curve of the single spring cannot meet the requirements of more deformations and force values, and the anti-fatigue strength performance is not high either. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the background art, the utility model provides an adjustable structure of a release, mainly solving the problem that the prior art cannot meet the requirements of more deformations and force values.

[0004] The technical solution of the utility model is as follows.

[0005] The adjustable structure of the release includes a bracket and a magnetic release mechanism. The magnetic release mechanism includes a regulating rod rotatably installed on the bracket, a knob for driving the regulating rod to rotate, and a pull ring connected to the moving iron core. It further includes

[0006] at least two elastic members, one end of each elastic member is connected to the regulating rod, and the other end is connected to the pull ring.

[0007] The regulating rod includes a first position where one of the elastic members is stressed and at least two second positions where the elastic members are stressed.

[0008] The elastic member is a spring.

[0009] A plurality of hanging grooves are provided on the pull ring. One of the hanging grooves is a long groove. When the regulating rod is in the first position, one end of a spring is arranged in the long groove and the spring does not exert force on the long groove.

[0010] The regulating rod is provided with a connecting rod, and a plurality of mounting parts for installing one end of the spring are provided on the connecting rod.

[0011] The mounting part is a through groove or an open groove.

[0012] The pull ring is provided with a mounting groove and a deformation groove. The mounting groove is used for partially inserting the moving iron core, and the deformation grooves are arranged on both sides of the mounting groove.

[0013] The beneficial effect of the utility model is that the utility model provides an adjustable structure of a release. By combining elastic members, more combinations of deformations and force values can be achieved, and at the same time, the load and anti-fatigue strength performance are better. Description of the Drawings

[0014] Figure 1 A three-dimensional schematic diagram of an embodiment of the present utility model.

[0015] Figure 2 A cross-sectional schematic diagram of an embodiment of the present utility model.

[0016] Figure 3 A partial three-dimensional schematic diagram of an embodiment of the present utility model.

[0017] Figure 4 A graph of the elastic force value of an embodiment of the present utility model.

[0018] Figure 5 A partial three-dimensional schematic diagram of an embodiment of the present utility model. Detailed implementation manners

[0019] The following further describes the present utility model with reference to the accompanying drawings: As shown in the figure, the adjustable structure of the release includes a bracket 1 and a magnetic release mechanism. The magnetic release mechanism includes an adjusting rod 21 rotatably installed on the bracket, a knob 22 for driving the rotation of the adjusting rod, and a pull ring 24 connected to the moving iron core 23. It further includes at least two elastic members 3. One end of the elastic member is connected to the adjusting rod, and the other end is connected to the pull ring. How the knob drives the rotation of the adjusting rod is the prior art, and reference can be made to the Chinese patent of CN 114975026 A. The feature of this application is the use of multiple elastic members (springs), forming a combination with at least two elastic members. By adjusting the deformation and linear combination of the force values of the two elastic members, the combination of elastic forces can be greatly enriched, and the overall fatigue resistance can be increased. The knob is provided with a spiral boss 220, and when the boss rotates, it drives the adjusting rod to rotate by touching the convex point 210 on the adjusting rod to overcome the force of the elastic member. The at least two elastic members mentioned here mean that there are at least two on each phase.

[0020] In this embodiment, as shown in the figure, the adjusting rod includes a first position where one of the elastic members is stressed and at least two second positions where the elastic members are stressed. Refer to Figure 4 Among them, one spring has a section of idle stroke, and the other spring is always stressed when the adjusting rod rotates. In this way, the curve obtained by the combination of the two can meet more combinations, and gears can be set on the torsion spring. In the small gear, only one spring is stressed, and in the large gear, multiple springs are stressed.

[0021] In this embodiment, as shown in the figure, the elastic member is a spring. Rubber can also be used

[0022] In this embodiment, as shown in the figure, a plurality of hanging grooves 242 are provided on the pull ring. One of the hanging grooves is a long groove. When the adjusting rod is in the first position, one end of a spring is arranged in the long groove and the spring does not exert force on the long groove. When the adjusting rod rotates to a certain position, the torsion foot of a spring hooks the inner wall of the long groove and starts to act, so that two springs are stressed. The remaining hanging grooves among the plurality of hanging grooves can be ordinary hanging grooves (i.e., open grooves), and the springs cooperating with them are always stressed when the adjusting rod rotates.

[0023] In this embodiment, as shown in the figure, the adjusting rod is provided with a connecting rod 212, and a plurality of mounting parts 213 for mounting one end of a spring are provided on the connecting rod. The mounting part can be an open groove or a through groove, etc. Preferably, one end of the spring with free travel is mounted in the through groove to make it more stable.

[0024] In this embodiment, as shown in the figure, the mounting part is a through groove or an open groove.

[0025] In this embodiment, as shown in the figure, the pull ring is provided with a mounting groove 243 and a deformation groove 244. The mounting groove is used for partially loading the moving iron core, and the deformation groove is arranged on both sides of the mounting groove. After the moving iron core is loaded, the deformation space of the wall (provided between the deformation groove and the mounting groove) is provided through the deformation groove, which is more conducive to assembly.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and 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, and therefore should not be construed as a limitation of the present invention.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0028] The embodiments described with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation of the present invention. The embodiments should not be regarded as a limitation of the present invention, but any improvement based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. An adjustable structure of a release, comprising a bracket (1) and a magnetic release mechanism, wherein the magnetic release mechanism comprises an adjustment rod (21) rotatably mounted on the bracket, a knob (22) for driving the adjustment rod to rotate, and a pull ring (24) connected to a moving iron core (23), characterized in that: Also includes At least two elastic members (3), one end of each elastic member is connected to the adjusting rod, and the other end is connected to the pull ring.

2. The adjustable structure of the release according to claim 1, characterized in that: The adjusting rod comprises a first position where the elastic member is subjected to force and at least two second positions where the elastic member is subjected to force.

3. The adjustable structure of the release according to claim 2, characterized in that: The elastic member is a spring.

4. The adjustable structure of the release according to claim 3, characterized in that: The pull ring is provided with a plurality of hanging grooves (242), one of the hanging grooves being a long groove, and when the adjustment rod is in the first position, one end of a spring is arranged in the long groove and the spring does not apply force to the long groove.

5. The adjustable structure of the release according to claim 4, characterized in that: The adjusting rod is provided with a connecting rod (212), and the connecting rod is provided with a plurality of mounting portions (213) for mounting one end of a spring.

6. The adjustable structure of the release according to claim 5, characterized in that: The mounting portion is a through slot or an open slot.

7. The adjustable structure of the release according to any one of claims 1 to 6, characterized in that: The pull ring is provided with a mounting groove (243) and a deformation groove (244), the mounting groove is used for installing a part of the moving iron core, and the deformation groove is provided on both sides of the mounting groove.

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