阅读说明：本技术 一种热磁可调保护系统 (Thermomagnetic adjustable protection system ) 是由 王登权 赵红良 赵明 于 2021-01-12 设计创作，主要内容包括：本发明提出了一种热磁可调保护系统,包括支架,所述的支架上设有可转动的旋钮,所述的支架上设有牵引杆,所述的牵引杆沿左右方向设置,所述的牵引杆为可转动设置在所述的支架上,所述的牵引杆上沿其径向设有向下伸出的调节拨片,所述的旋钮设置在所述的牵引杆的上侧,所述的牵引杆的径向的旁侧设有凸块,所述的凸块上设有向上凸出的调节柱,所述的旋钮的下侧面上沿上下方向形成螺旋的斜面,所述的调节柱的上端与所述的斜面相抵配合,所述的斜面上设有三个定位凹槽,三个定位凹槽在斜面的延伸方向间隔排列,定位凹槽与调节柱配合对牵引杆的转动角度进行定位,旋钮转动时会通过调节柱驱动牵引杆转动,所述的牵引杆上设有阻止其转动的扭簧。(The invention provides a thermomagnetic adjustable protection system, which comprises a bracket, wherein a rotatable knob is arranged on the bracket, a draw bar is arranged on the bracket and is arranged along the left-right direction, the draw bar is rotatably arranged on the bracket, an adjusting poking sheet which extends downwards is arranged on the draw bar along the radial direction of the draw bar, the knob is arranged on the upper side of the draw bar, a convex block is arranged at the radial side of the draw bar, an upward convex adjusting column is arranged on the convex block, a spiral inclined plane is formed on the lower side surface of the knob along the up-down direction, the upper end of the adjusting column is abutted and matched with the inclined plane, three positioning grooves are arranged on the inclined plane and are arranged at intervals in the extending direction of the inclined plane, and the positioning grooves are matched with the adjusting column to position the rotating angle of the draw bar, when the knob rotates, the traction rod is driven to rotate through the adjusting column, and a torsion spring for preventing the traction rod from rotating is arranged on the traction rod.)

1. A thermomagnetic adjustable protection system is characterized in that: comprises a bracket, wherein a rotatable knob is arranged on the bracket, a draw bar is arranged on the bracket along the left-right direction, the draw bar is rotatably arranged on the bracket, an adjusting poking sheet which extends downwards is arranged on the draw bar along the radial direction,

the knob set up the upside of traction lever, the radial side of traction lever be equipped with the lug, the lug on be equipped with the convex regulation post that makes progress, the downside of knob on form the spiral inclined plane along upper and lower direction, the upper end of regulation post with the cooperation of inclined plane counterbalance, the inclined plane on be equipped with three positioning groove, three positioning groove is at the extending direction interval arrangement on inclined plane, positioning groove fixes a position with the turned angle of adjusting the post cooperation to the traction lever, can rotate through adjusting post drive traction lever when the knob rotates, the traction lever on be equipped with and prevent its pivoted torsional spring.

2. A thermo-magnetic tunable protection system according to claim 2, characterised in that: the bracket is provided with a shaft hole connected with the traction rod.

3. A thermomagnetic adjustable protection system according to claim 1, characterized in that: the upper end of the knob is provided with a first limiting block protruding outwards, and the support is provided with a second limiting block matched with the first limiting block in a propping mode.

4. A thermomagnetic adjustable protection system according to claim 1, characterized in that: the draw bar is a long rod-shaped structure.

5. A thermomagnetic adjustable protection system according to claim 1, characterized in that: the torsion spring is sleeved on the traction rod, one end of the torsion spring is fixedly connected with the traction rod, and the other end of the torsion spring is connected with the support in a propping mode.

Technical Field

The invention relates to a thermomagnetic adjustable protection system.

Background

In the existing low-voltage circuit breakers, in order to be suitable for different loads, the protection functions of the circuit breaker are required to be diversified, such as: adding thermal adjustment gear setting and magnetic adjustment gear setting to meet load protection; in the prior art, because the setting of multiple gears of thermal regulation and magnetic regulation needs to be realized, thermal and magnetic tripping cannot directly push a traction rod of an operating mechanism, an energy storage tripping mechanism is needed, when a circuit fails, the tripping mechanism receives a thermal or magnetic tripping signal, the energy storage mechanism trips, so that the traction rod of the operating mechanism is pushed, and the main circuit is cut off after the operating mechanism trips to realize protection; meanwhile, after the energy storage mechanism is tripped once, the energy storage mechanism needs to be reset, and the operation is very complex.

Disclosure of Invention

Aiming at the problems pointed out in the background technology, the invention provides a thermomagnetic adjustable protection system which is simple in structure and can meet the adjustment of three gears, so that the adjustment of different control ranges can be realized by adjusting a shifting piece.

The technical scheme of the invention is realized as follows:

a thermomagnetic adjustable protection system comprises a bracket, wherein a rotatable knob is arranged on the bracket, a draw bar is arranged on the bracket and is arranged along the left-right direction, the draw bar is rotatably arranged on the bracket, an adjusting poking sheet which extends downwards is arranged on the draw bar along the radial direction of the draw bar,

the knob set up the upside of traction lever, the radial side of traction lever be equipped with the lug, the lug on be equipped with the convex regulation post that makes progress, the downside of knob on form the spiral inclined plane along upper and lower direction, the upper end of regulation post with the cooperation of inclined plane counterbalance, the inclined plane on be equipped with three positioning groove, three positioning groove is at the extending direction interval arrangement on inclined plane, positioning groove fixes a position with the turned angle of adjusting the post cooperation to the traction lever, can rotate through adjusting post drive traction lever when the knob rotates, the traction lever on be equipped with and prevent its pivoted torsional spring.

The invention is further arranged that the bracket is provided with a shaft hole connected with the traction rod.

The invention is further provided that the upper end of the knob is provided with a first limiting block protruding outwards, and the bracket is provided with a second limiting block matched with the first limiting block in a propping manner.

The invention is further arranged that the draw bar is a long rod-shaped structure.

The invention is further arranged in such a way that the torsion spring is sleeved on the traction rod, one end of the torsion spring is fixedly connected with the traction rod, and the other end of the torsion spring is propped against the bracket.

By adopting the technical scheme, the invention has the beneficial effects that:

the thermomagnetic adjustable protection system provided by the invention has a simple structure, is convenient to operate, can realize three-gear operation of the rotation of the traction rod through the knob, when the knob rotates, the adjusting post slides on the inclined plane of the knob, the positioning groove on the knob is matched with the adjusting post to form a gear, the three grooves correspond to the adjustment of three gears, and the adjusting post downwards drives the adjusting plectrum on the traction rod to rotate under the pressing of the knob so as to realize the adjustment of different control ranges.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a side view of the present invention;

fig. 5 is a schematic structural view of a drawbar according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention is described below with reference to fig. 1-5:

the thermomagnetic adjustable protection system comprises a support 1, wherein a rotatable knob 2 is arranged on the support 1, a traction rod 3 is arranged on the support 1, the traction rod 3 is arranged along the left-right direction, the traction rod 3 is rotatably arranged on the support 1, and an adjusting poking piece 4 extending downwards is arranged on the traction rod 3 along the radial direction of the traction rod.

Knob 2 set up the upside of traction lever 3, traction lever 3 radial side be equipped with lug 5, lug 5 on be equipped with the convex regulation post 6 that makes progress, the downside of knob 2 on form spiral inclined plane 21 along upper and lower direction, the upper end of regulation post 6 with inclined plane 21 offset the cooperation, inclined plane 21 on be equipped with three positioning groove 7, three positioning groove 7 is at the extending direction interval arrangement on inclined plane, positioning groove 7 and the cooperation of regulation post 6 are fixed a position traction lever 3's turned angle, knob 2 can rotate through adjusting 6 drive traction levers 3 of post when rotating, traction lever 3 on be equipped with and prevent its pivoted torsional spring 8.

Wherein, the bracket 1 is provided with a shaft hole 9 connected with the traction rod 3.

The upper end of the knob 2 is provided with a first limiting block 10 protruding outwards, and the support 1 is provided with a second limiting block 11 matched with the first limiting block 10 in an abutting mode.

Wherein, the traction rod 3 is a long rod-shaped structure.

The torsion spring 8 is sleeved on the traction rod 3, one end of the torsion spring 8 is fixedly connected with the traction rod 3, and the other end of the torsion spring 8 is connected with the support 1 in an abutting mode.

By adopting the technical scheme, the invention has the beneficial effects that:

the thermomagnetic adjustable protection system provided by the invention has a simple structure, is convenient to operate, can realize three-gear operation of rotating the traction rod 3 through the knob 2, when the knob 2 rotates, the adjusting post 6 slides on the inclined plane of the knob 2, the positioning groove 7 on the knob 2 is matched with the adjusting post 6 to form a gear, the three grooves correspond to the adjustment of three gears, and the adjusting post 6 downwards drives the adjusting plectrum 4 on the traction rod 3 to rotate under the pressing of the knob 2 so as to realize the adjustment of different control ranges.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.