An adjustable knob assembly and circuit breaker

Abstract

The utility model provides a kind of adjustable knob assembly and circuit breaker, it is related to electrical equipment technical field.Adjustable knob assembly includes adjusting knob and transmission part, adjusting knob is provided with indicating mark and multiple first clamping parts, transmission part is provided with multiple second clamping parts, multiple first clamping parts and multiple second clamping parts one-to-one correspond clamping cooperation, and wherein arbitrary first clamping part can be with arbitrary second clamping part clamping cooperation, to make indicating mark can point to multiple directions.To this, the assembly process of product is simplified, also improve the flexibility and applicability of knob adjustment, and the direction adjustment of indicating mark no longer depends on the scale position of knob cover itself, but is adjusted by the relative position between knob and transmission part, realizes the technical effect of unified marking scale position, improves the versatility and consistency of product.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and more specifically, to an adjustable knob assembly and a circuit breaker. Background Technology

[0002] As a common low-voltage protective electrical appliance, the varistor circuit breaker features adjustable rated current and can flexibly set the protection threshold according to actual load requirements, making it widely used in power distribution systems. However, in actual production and application, differences in the temperature compensation element structure, material properties, or thermal response parameters used in different models or specifications of circuit breakers lead to inconsistencies in the starting position of current adjustment for each product.

[0003] This difference in starting position directly affects the mechanical angle position of the adjustment knob or handle at the lowest current setting, resulting in inconsistent zero point (i.e., scale start point) positions on the adjustment dial. Therefore, in the product labeling process, nameplate design and laser marking positions must be adjusted according to specific models, making standardized configuration impossible. Furthermore, during production and assembly, different scale alignment process parameters must be set for different products, increasing assembly complexity and process control difficulty. This leads to differentiated operations during production, making it difficult to achieve universal and modular production, reducing production efficiency and significantly increasing the costs of material management, tooling adjustments, and quality control. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable knob assembly and circuit breaker, which simplifies the product assembly process, improves the flexibility and applicability of knob adjustment, effectively solves the problem of inconsistent scale markings caused by individual differences in the prior art, and improves the versatility and consistency of the product.

[0005] The embodiments of this utility model are implemented as follows: In a first aspect, this utility model provides an adjustable knob assembly, comprising: An adjustment knob, the adjustment knob being provided with an indicator and multiple first retaining parts; The transmission component is provided with a plurality of second holding parts, and the plurality of first holding parts and the plurality of second holding parts are engaged in a one-to-one engagement, and any one of the first holding parts can engage with any one of the second holding parts, so that the indicator can point in multiple directions.

[0006] In an optional embodiment, the first retaining part is a groove structure, and the second retaining part is a protrusion structure; Alternatively, the first holding part may be a protruding structure, and the second holding part may be a groove structure.

[0007] In an optional embodiment, the adjustment knob includes a knob body, a screwing part protruding on one side along the axial direction of the knob body, and a first connecting part on the other side, wherein the plurality of first holding parts are all disposed on the first connecting part; The top end of the transmission component is provided with a second connecting part, and the plurality of second holding parts are provided on the second connecting part, and the first connecting part and the second connecting part are fixedly engaged.

[0008] In an optional embodiment, the knob body is further provided with a first positioning part at the first connecting part, and the transmission member is provided with a second positioning part at the second connecting part, wherein the first positioning part and the second positioning part are movably engaged.

[0009] In an optional embodiment, the first positioning part is located on the rotation axis of the adjustment knob, and the second positioning part is located on the rotation axis of the transmission member.

[0010] In an optional embodiment, the first positioning part is a groove structure, and the second positioning part is a protrusion structure; Alternatively, the first positioning part may be a protruding structure, and the second positioning part may be a groove structure.

[0011] In an optional embodiment, the first connecting part is a circular boss structure, the plurality of first retaining parts are arranged around the outer peripheral wall of the first connecting part, the second connecting part is a circular groove structure, the plurality of second retaining parts are arranged around the inner side wall of the second connecting part, and the first connecting part is embedded in the second connecting part; Alternatively, the first connecting part is a circular groove structure, and the plurality of first retaining parts are arranged around the inner sidewall of the first connecting part; the second connecting part is a circular protrusion structure, and the plurality of second retaining parts are arranged around the outer peripheral wall of the second connecting part; the second connecting part is embedded in the first connecting part.

[0012] In an optional embodiment, the adjustable knob assembly further includes a cover plate having a mounting hole and a scale marking. The scale marking is located around the mounting hole, and the knob body is disposed in the mounting hole. The inner diameter of the mounting hole is larger than the outer diameter of the screwing part and smaller than the outer diameter of the knob body.

[0013] In an optional embodiment, the adjustable knob assembly further includes a base, the cover plate is connected to the base, the bottom end of the transmission member is disposed on the base, and the cover plate abuts against the knob body.

[0014] Secondly, this utility model provides a circuit breaker, including an adjustable knob assembly as described in any of the foregoing embodiments.

[0015] The beneficial effects of the adjustable knob assembly and circuit breaker provided by this utility model include: by providing an indicator mark and multiple first retaining parts on the adjusting knob, and multiple second retaining parts on the transmission component, a one-to-one retaining relationship is formed between the multiple first retaining parts and the multiple second retaining parts, and any one of the first retaining parts can engage with any one of the second retaining parts. This allows the adjusting knob to have multiple adjustable relative positions with respect to the transmission component, enabling the indicator mark to be set to point in any of multiple directions during assembly. This provides flexible angle adjustment capability for the installation of the adjusting knob and the transmission component, allowing the adjustable knob assembly to be adjusted to a suitable indicating angle according to actual needs during assembly, eliminating the need for different scale markings for different products. Therefore, the adjustable knob assembly provided by this utility model not only simplifies the product assembly process but also improves the flexibility and applicability of knob adjustment, effectively solving the problem of inconsistent scale markings caused by individual differences in the prior art. Furthermore, the direction adjustment of the indicator no longer depends on the scale position of the knob cover itself, but is adjusted through the relative position between the knob and the transmission component, achieving the technical effect of uniformly marking the scale position and improving the versatility and consistency of the product. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A cross-sectional view of an adjustable knob assembly provided in an embodiment of this utility model; Figure 2 A schematic diagram of the adjustable knob assembly provided in this embodiment of the utility model; Figure 3 A first-view structural schematic diagram of the adjustable knob assembly provided in this embodiment of the utility model; Figure 4 A second-view structural schematic diagram of the adjustable knob assembly provided in this embodiment of the utility model; Figure 5 This is a third-view structural diagram of the adjustable knob assembly provided in an embodiment of the present utility model.

[0018] Icons: 10-Adjustable knob assembly; 100-Adjusting knob; 110-Knob body; 120-Turning part; 121-Indicator mark; 130-First connecting part; 131-First holding part; 140-First positioning part; 200-Transmission component; 210-Second holding part; 220-Second connecting part; 230-Second positioning part; 300-Cover plate; 310-Mounting hole; 320-Scale mark; 400-Base; 11-Temperature compensation plate. Detailed Implementation

[0019] 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] As a common low-voltage protective electrical appliance, the varistor circuit breaker features adjustable rated current and can flexibly set the protection threshold according to actual load requirements, making it widely used in power distribution systems. However, in actual production and application, differences in the temperature compensation element structure, material properties, or thermal response parameters used in different models or specifications of circuit breakers lead to inconsistencies in the starting position of current adjustment for each product.

[0026] This difference in starting position directly affects the mechanical angle position of the adjustment knob or handle at the lowest current setting, resulting in inconsistencies in the zero point (i.e., the starting point of the scale) of the adjustment dial. Therefore, in the product labeling process, nameplate design and laser marking positions must be adjusted according to specific models, making standardized configuration impossible. Furthermore, during production and assembly, different scale alignment process parameters must be set for different products, increasing assembly complexity and process control difficulty. These problems necessitate differentiated operations during production, hindering universal and modular production, reducing production efficiency, and significantly increasing the costs of material management, tooling adjustments, and quality control.

[0027] Therefore, there is an urgent need to provide a structural optimization solution to unify the starting position of the adjustment scale across different products, achieve standardization of scale markings and universalization of assembly, reduce production costs, and improve product consistency and manufacturing efficiency.

[0028] Please see Figures 1 to 5 This utility model provides an adjustable knob assembly 10, including an adjustment knob 100 and a transmission component 200. By adjusting the structural cooperation between the knob 100 and the transmission component 200, the indicator mark 121 can point in multiple directions, thereby meeting the need for uniform labeling of the scale mark 320 in different application scenarios.

[0029] In detail, the adjustment knob 100 is provided with an indicator 121 and a plurality of first holding parts 131, and the transmission member 200 is provided with a plurality of second holding parts 210. The plurality of first holding parts 131 and the plurality of second holding parts 210 are engaged in a one-to-one engagement, and any one of the first holding parts 131 can engage with any one of the second holding parts 210, so that the indicator 121 can point in multiple directions.

[0030] It is understood that in this embodiment, the transmission component 200 is connected to the temperature compensation plate 11. By turning the adjustment knob 100, the transmission component 200 is driven to rotate synchronously in the axial direction, thereby driving the temperature compensation plate 11 to rotate, thus adjusting the distance between the end of the temperature compensation plate 11 and the double metal.

[0031] Therefore, by providing an indicator mark 121 and multiple first retaining parts 131 on the adjustment knob 100, and multiple second retaining parts 210 on the transmission member 200, a one-to-one retaining relationship is formed between the multiple first retaining parts 131 and the multiple second retaining parts 210, and any one of the first retaining parts 131 can retain with any one of the second retaining parts 210. This allows the adjustment knob 100 to have multiple adjustable relative positions with respect to the transmission member 200, so that the indicator mark 121 can be set to point to any one of multiple directions during assembly. This provides a flexible angle adjustment capability for the installation of the adjustment knob 100 and the transmission member 200, so that the adjustable knob assembly 10 can be adjusted to a suitable indicating angle according to actual needs during the assembly process, without the need to configure different scale marks 320 for different products.

[0032] Therefore, the adjustable knob assembly 10 provided by this utility model not only simplifies the product assembly process but also improves the flexibility and applicability of knob adjustment, thereby effectively solving the problem of inconsistent scale markings 320 caused by individual differences in the prior art. Furthermore, the direction adjustment of the indicator 121 no longer depends on the scale position of the knob cover itself, but is adjusted through the relative position between the knob and the transmission component 200, achieving a unified scale marking position and improving the product's versatility and consistency.

[0033] In detail, in this embodiment, the first holding part 131 is a groove structure and the second holding part 210 is a protrusion structure. Therefore, the protrusion structure can be embedded in the groove during the assembly process to form a limiting fit. When it is necessary to adjust the direction of the indicator mark 121 of the adjustment knob 100, simply rotate the adjustment knob 100 to different angles, and the angle is stably positioned by the engagement between the multiple first holding parts 131 and the multiple second holding parts 210.

[0034] It is understood that in other embodiments of this utility model, the first holding part 131 may also be a protruding structure and the second holding part 210 may be a groove structure. As long as the first holding part 131 and the second holding part 210 can achieve a holding engagement, no specific limitation is made here.

[0035] Furthermore, the adjustment knob 100 includes a knob body 110, a screwing part 120 protruding on one side along the axial direction of the knob body 110, and a first connecting part 130 on the other side, and a plurality of first holding parts 131 are all provided on the first connecting part 130.

[0036] The top end of the transmission component 200 is provided with a second connecting part 220, and a plurality of second holding parts 210 are provided on the second connecting part 220. The first connecting part 130 is fixedly engaged with the second connecting part 220, thereby improving the connection stability between the adjusting knob 100 and the transmission component 200 and ensuring that the plurality of first holding parts 131 and the plurality of second holding parts 210 are stably engaged.

[0037] Specifically, the first connecting part 130 is a circular boss structure, and a plurality of first holding parts 131 are arranged around the outer peripheral wall of the first connecting part 130. The second connecting part 220 is a circular groove structure, and a plurality of second holding parts 210 are arranged around the inner side wall of the second connecting part 220. The first connecting part 130 is embedded in the second connecting part 220.

[0038] In this embodiment, during installation, the multiple first retaining parts 131 and multiple second retaining parts 210 need to be aligned one by one, and then the first connecting part 130 is embedded into the second connecting part 220. At the same time, the multiple first retaining parts 131 and multiple second retaining parts 210 are engaged and cooperated. In this way, the connection stability and firmness between the adjusting knob 100 and the transmission member 200 are significantly improved, ensuring that the transmission member 200 can rotate synchronously under the drive of the adjusting knob 100.

[0039] Of course, in other embodiments of this utility model, the first connecting part 130 may also be a circular groove structure, with a plurality of first holding parts 131 circumferentially disposed on the inner sidewall of the first connecting part 130, the second connecting part 220 being a circular protrusion structure, with a plurality of second holding parts 210 circumferentially disposed on the outer peripheral wall of the second connecting part 220, and the second connecting part 220 being embedded in the first connecting part 130.

[0040] Furthermore, the knob body 110 is provided with a first positioning part 140 at the first connecting part 130, and the transmission component 200 is provided with a second positioning part 230 at the second connecting part 220. The first positioning part 140 and the second positioning part 230 are movably engaged, thereby further improving the installation stability of the adjustment knob 100 and the transmission component 200, avoiding relative shaking between the two, and thus enhancing the controllability and accuracy of the adjustment process.

[0041] Specifically, the first positioning part 140 is located on the rotation axis of the adjustment knob 100, and the second positioning part 230 is located on the rotation axis of the transmission member 200.

[0042] In this embodiment, the first positioning part 140 is a groove structure and the second positioning part 230 is a protrusion structure. Therefore, during the process of the first connecting part 130 being embedded into the second connecting part 220, the second positioning part 230 is simultaneously embedded into the first positioning part 140.

[0043] Of course, in other embodiments of this utility model, the first positioning part 140 may also be a protruding structure and the second positioning part 230 may be a groove structure.

[0044] Furthermore, the adjustable knob assembly 10 also includes a cover plate 300, which is provided with a mounting hole 310 and a scale mark 320. The scale mark 320 is located around the mounting hole 310. The knob body 110 is disposed in the mounting hole 310, and the inner diameter of the mounting hole 310 is larger than the outer diameter of the screwing part 120 and smaller than the outer diameter of the knob body 110.

[0045] In other words, in the installed state, the screwing part 120 of the adjustment knob 100 is exposed outside the mounting hole 310, so that the indicator mark 121 on the adjustment knob 100 can intuitively point to the scale mark 320 on the periphery of the mounting hole 310, making the adjustment more intuitive and providing clear operation guidance for the user.

[0046] Furthermore, since the inner diameter of the mounting hole 310 is smaller than the outer diameter of the knob body 110, it can be ensured that the adjustment knob 100 will not detach from the cover plate 300 during the turning process, thus ensuring the stable positioning and smooth rotation of the adjustment knob 100 on the cover plate 300.

[0047] Furthermore, the adjustable knob assembly 10 also includes a base 400, a cover plate 300 connected to the base 400, a bottom end of the transmission member 200 disposed on the base 400, and a cover plate 300 abutting against the knob body 110.

[0048] The bottom end of the transmission component 200 is located within the base 400, forming a dual positioning system in both the axial and circumferential directions. The cover plate 300 is fixedly connected to the base 400 and forms an abutment relationship with one end face of the knob body 110 after the knob is assembled, thereby preventing the knob from axially shifting or detaching during use. This structural design, where the upper and lower ends are limited by the base 400 and the cover plate 300 respectively, effectively improves the assembly stability of the adjustable knob assembly 10.

[0049] In summary, this utility model provides an adjustable knob assembly 10. By providing an indicator mark 121 and multiple first retaining parts 131 on the adjusting knob 100, and multiple second retaining parts 210 on the transmission member 200, a one-to-one retaining relationship is formed between the multiple first retaining parts 131 and the multiple second retaining parts 210. Furthermore, any one of the first retaining parts 131 can retain any one of the second retaining parts 210. This allows the adjusting knob 100 to have multiple adjustable relative positions with respect to the transmission member 200, enabling the indicator mark 121 to be set to point in any one of multiple directions during assembly. This provides a flexible angle adjustment capability for the installation of the adjusting knob 100 and the transmission member 200, allowing the adjustable knob assembly 10 to be adjusted to a suitable indicating angle according to actual needs during assembly, without the need to configure different scale marks 320 for different products. Therefore, the adjustable knob assembly 10 provided by this utility model not only simplifies the product assembly process but also improves the flexibility and applicability of knob adjustment, thereby effectively solving the problem of inconsistent scale markings 320 caused by individual differences in the prior art. Furthermore, the direction adjustment of the indicator 121 no longer depends on the scale position of the knob cover itself, but is adjusted through the relative position between the knob and the transmission component 200, achieving a unified scale marking position and improving the product's versatility and consistency.

[0050] Furthermore, this utility model embodiment also provides a circuit breaker, which includes the adjustable knob assembly 10 summarized in the above embodiments.

[0051] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable knob assembly, characterized in that, include: An adjustment knob (100) is provided with an indicator (121) and a plurality of first holding parts (131). The transmission component (200) is provided with a plurality of second holding parts (210), and the plurality of first holding parts (131) and the plurality of second holding parts (210) are engaged in a one-to-one engagement, and any one of the first holding parts (131) can engage with any one of the second holding parts (210) so that the indicator (121) can point in multiple directions.

2. The adjustable knob assembly according to claim 1, characterized in that, The first retaining part (131) has a groove structure, and the second retaining part (210) has a protrusion structure; Alternatively, the first holding part (131) may be a protruding structure, and the second holding part (210) may be a groove structure.

3. The adjustable knob assembly according to claim 1, characterized in that, The adjustment knob (100) includes a knob body (110), a screwing part (120) is provided on one side of the knob body (110) along the axial direction, and a first connecting part (130) is provided on the other side. The plurality of first holding parts (131) are all provided on the first connecting part (130). The top end of the transmission component (200) is provided with a second connecting part (220), and the plurality of second holding parts (210) are provided on the second connecting part (220). The first connecting part (130) is fixedly engaged with the second connecting part (220).

4. The adjustable knob assembly according to claim 3, characterized in that, The knob body (110) is provided with a first positioning part (140) at the first connecting part (130), and the transmission member (200) is provided with a second positioning part (230) at the second connecting part (220). The first positioning part (140) and the second positioning part (230) are in movable cooperation.

5. The adjustable knob assembly according to claim 4, characterized in that, The first positioning part (140) is located on the rotation axis of the adjustment knob (100), and the second positioning part (230) is located on the rotation axis of the transmission member (200).

6. The adjustable knob assembly according to claim 4, characterized in that, The first positioning part (140) is a groove structure, and the second positioning part (230) is a protrusion structure; Alternatively, the first positioning part (140) may be a protruding structure, and the second positioning part (230) may be a groove structure.

7. The adjustable knob assembly according to claim 3, characterized in that, The first connecting part (130) is a circular boss structure, and the plurality of first holding parts (131) are arranged around the outer peripheral wall of the first connecting part (130). The second connecting part (220) is a circular groove structure, and the plurality of second holding parts (210) are arranged around the inner side wall of the second connecting part (220). The first connecting part (130) is embedded in the second connecting part (220). Alternatively, the first connecting part (130) is a circular groove structure, the plurality of first holding parts (131) are arranged around the inner sidewall of the first connecting part (130), the second connecting part (220) is a circular protrusion structure, the plurality of second holding parts (210) are arranged around the outer peripheral wall of the second connecting part (220), and the second connecting part (220) is embedded in the first connecting part (130).

8. The adjustable knob assembly according to claim 3, characterized in that, The adjustable knob assembly also includes a cover plate (300), which is provided with a mounting hole (310) and a scale mark (320). The scale mark (320) is located on the periphery of the mounting hole (310). The knob body (110) is disposed in the mounting hole (310), and the inner diameter of the mounting hole (310) is larger than the outer diameter of the screwing part (120) and smaller than the outer diameter of the knob body (110).

9. The adjustable knob assembly according to claim 8, characterized in that, The adjustable knob assembly also includes a base (400), the cover plate (300) is connected to the base (400), the bottom end of the transmission member (200) is disposed on the base (400), and the cover plate (300) abuts against the knob body (110).

10. A circuit breaker, characterized in that, Includes the adjustable knob assembly as described in any one of claims 1-9.

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