Knob and housing combination

Abstract

The application relates to the technical field of electrical connection devices, in particular to a combined structure of a knob and a shell. The combined structure can be applied to a circuit breaker and comprises the knob and the shell. The knob comprises a rotating disc and a transmission part arranged on one axial side of the rotating disc. A display window is arranged on the rotating disc. The shell is provided with a first mounting hole, the rotating disc is located on the outer side of the shell, the transmission part penetrates through the first mounting hole and can rotate relative to the shell. A plurality of first identification parts for indicating the working state of the circuit breaker are arranged on the shell opposite to the rotating disc, and the plurality of first identification parts are arranged in a circumferential direction around the axis of the rotating disc. When the knob rotates, the display window rotates synchronously with the rotating disc and is aligned with the corresponding first identification part, so that the current working state is clearly indicated. The structure arranges the identification parts below the rotating disc, saves the space of the shell, is suitable for compact installation environment, simultaneously solves the problem of inaccurate state indication, and facilitates the user to quickly identify the state of the circuit breaker.

Description

Technical Field

[0001] This application relates to the field of electrical connection device technology, and more particularly to a combination structure of a knob and a housing. Background Technology

[0002] To facilitate quick judgment of the current operating status of the circuit breaker, a marking section indicating the operating status of the circuit breaker is set on the circuit breaker housing, and a corresponding indicator section is set on the knob. When the indicator section corresponds to the marking section, it indicates that the circuit breaker is in the state shown by the marking section.

[0003] Typically, the indicator is located beside the knob and surrounds it. To accurately indicate the current operating status of the circuit breaker, the indicator on the knob must be directly aligned with the indicator in each operating state. However, due to the size limitations of the circuit breaker, the area on the housing for the knob and indicator is very limited. Sometimes the indicator may be misaligned with the indicator, making it difficult to determine the current operating status of the circuit breaker. Utility Model Content

[0004] This application provides a combination structure of knob and housing, which aims to solve the technical problem that the circuit breaker marking is inaccurate and the circuit breaker's operating status is difficult to determine.

[0005] The technical solution of this application is as follows: The knob and housing combination structure provided in this application is used in a circuit breaker. It includes a knob and a housing. The knob includes a turntable and a transmission part disposed on one axial side of the turntable. The transmission part is used to link with the operating mechanism of the circuit breaker. A display window is provided on the turntable. A first mounting hole is provided on the housing. The turntable is located outside the housing, and the transmission part passes through the first mounting hole and can rotate relative to the housing.

[0006] The housing has multiple first markings indicating the operating status of the circuit breaker, located opposite the turntable. These first markings are arranged circumferentially around the axis of the turntable. When the display window of the turntable corresponds to any of the first markings, the display window displays that first marking.

[0007] Based on the knob and housing combination structure provided in this application, the first marking section is located below the turntable. This eliminates the need for the first marking section to occupy additional housing area, allowing for a reasonable arrangement even under space-constrained conditions. Furthermore, in conjunction with the location of the first marking section, a display window is correspondingly provided on the turntable, rotating synchronously with the knob. During rotation, the display window dynamically reflects the current operating status of the circuit breaker, thus functioning as an indicator. When the display window is aligned with a specific first marking section, the current operating status of the circuit breaker can be clearly seen through that marking section. This solves the technical problem of inaccurate indication by existing circuit breaker marking sections, facilitating quick identification of the circuit breaker's current operating status by relevant personnel.

[0008] In one possible design, the housing is provided with multiple second markings opposite to the turntable, which indicate the rotatable direction of the circuit breaker in its current operating state.

[0009] The second label is located next to the corresponding first label. When the display window of the turntable corresponds to any of the first labels, the display window reveals the first label and the corresponding second label.

[0010] Based on the combination structure of the knob and housing provided in this embodiment, by providing a second marking part next to the first marking part, and the display window being able to simultaneously display the first marking part and the corresponding second marking part, it is convenient for operators to operate the circuit breaker correctly, reducing the occurrence of misoperation and improving the safety of the circuit breaker.

[0011] In one possible design, the first and second marking portions are formed at the location where the housing and the edge of the turntable are opposite each other, and the display window is a notch located at the edge of the turntable.

[0012] Based on the combination structure of the knob and housing provided in this embodiment, the display window is set on the edge of the turntable, and the first marking part and the second marking part are formed at the opposite edge of the housing and the turntable. In this way, the setting area of ​​the first marking part and the second marking part will be larger, which facilitates the arrangement of the first marking part and the second marking part.

[0013] In one possible design, the housing has an adjustment hole and a lead seal ring. The combination structure of the knob and housing also includes a lead seal plate with a lead seal hole for the lead seal ring to protrude.

[0014] The lead seal plate is detachably mounted on the outside of the housing, covering the adjustment hole, and is sealed to the housing by a lead seal ring passing through the lead seal hole. At least a portion of the edge of the turntable can press against the outside of the lead seal plate.

[0015] Based on the knob and housing combination structure provided in this embodiment, a lead-sealing ring and a cooperating lead-sealing plate are also provided on the housing. The adjustment hole is sealed by the cooperation of the lead-sealing plate and the lead-sealing ring to reduce unauthorized regulation of the operating current. Furthermore, at least a portion of the edge of the turntable in this application presses against the outside of the lead-sealing plate, thus the turntable becomes a second barrier against unauthorized regulation of the operating current. Even if the lead-sealing structure is damaged or not sealed, the turntable can still prevent the lead-sealing plate from opening, further reducing the occurrence of unauthorized regulation of the operating current.

[0016] In one possible design, the first marking unit includes an open marking, an closed marking, and a fault marking.

[0017] The lead seal housing is located next to the open circuit indicator. When the open circuit indicator is displayed on the rotary table's display window, the rotary table and the lead seal plate do not overlap. When the closed circuit indicator or fault indicator is displayed on the rotary table's display window, the edge of the rotary table overlaps with the lead seal plate.

[0018] Based on the combination structure of the knob and housing provided in this embodiment, the lead seal housing can be effectively prevented from being opened without authorization in the closed or fault state, thereby reducing the risk of unauthorized adjustment of the operating current. In the open state, the mechanical constraint on the lead seal housing is released, allowing the adjustment of the operating current to be carried out under safe conditions.

[0019] In one possible design, the lead seal plate is a transparent insulating plate. This makes it easier for operators to locate the adjustment hole.

[0020] In one possible design, the turntable includes a turntable body and a straight-line operating part. The transmission part and the straight-line operating part are located on opposite sides of the turntable body along its axial direction.

[0021] Along the radial direction of the turntable body, the display window is located at the edge of the turntable body, and the straight-line operation part is located on one side of the display window and passes through the rotation center of the turntable body.

[0022] Based on the knob and housing combination structure provided in this embodiment, a linear operating section is provided on the outer side of the turntable. This facilitates the connection of external devices to the linear operating section for controlling the circuit breaker. Furthermore, the display window typically occupies a relatively small area on the turntable body and is therefore not very conspicuous. In this embodiment, the linear operating section is located to one side of the display window and is located at the rotation center of the turntable body. Thus, visually, the linear operating section is more easily seen, making it easier to identify the display window on one side of the linear operating section.

[0023] In one possible design, the knob includes a knob body and a keyhole plate. The knob body includes a rotary body, a transmission part, and a first operating part, which is a portion of a straight-line operating part.

[0024] A plug hole is provided on one radial side of the knob body, and the plug hole is formed on the turntable body and the first operating part.

[0025] The keyhole plate includes a connecting insertion part and a second operating part. The insertion part can be inserted and engaged with the insertion hole along the radial direction of the turntable body. The second operating part is another part of the straight-line operating part, and can be spliced ​​with the first operating part along the radial direction of the turntable body to form a complete straight-line operating part.

[0026] Based on the combination structure of the knob and housing provided in this embodiment, the knob also has a padlock function, which can prevent others from accidentally closing the circuit breaker during maintenance or repair, thereby ensuring the absolute safety of the operator.

[0027] In one possible design, the display window is formed on the edge of the turntable body where the insertion hole is located, and is connected to the insertion hole, which facilitates the manufacture of the knob body.

[0028] In one possible design, either the first or second marking is formed by laser engraving. This makes the first and second markings clearer, less prone to wear, and accurately identifiable even after prolonged use. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of a combination structure of a knob and a housing provided in an embodiment of this application.

[0030] Figure 2 for Figure 1 A schematic diagram of a type of shell structure.

[0031] Figure 3 This is a schematic diagram of the structure of a knob provided in an embodiment of this application.

[0032] Figure 4 This is a schematic diagram of the combined structure of the knob and housing with the lead seal plate added, in the closed state of the circuit breaker.

[0033] Figure 5 This is a schematic diagram of the combined structure of the knob and housing with the lead seal plate added, in the circuit breaker's open state.

[0034] Figure 6 for Figure 3 The diagram shows the structure of the knob from another perspective.

[0035] Figure 7 for Figure 3 An exploded view of the knob shown.

[0036] The attached figures are labeled as follows: 1. Knob; 11. Turntable; 111. Display window; 112. Turntable body; 113. Linear operating part; 1131. First operating part; 1132. Second operating part; 12. Transmission part; 1A, Knob body; 1A1, Insertion hole; 1A2, First lock hole; 1B, Lock hole plate; 1B1, Insertion part; 1B2, Second lock hole; 2. Housing; 21. First mounting hole; 22. First marking section; 221. Opening marking; 222. Closing marking; 223. Fault marking; 23. Second marking section; 24. Adjustment hole; 25. Lead seal ring; 3. Lead seal plate. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and drawings of this application are intended to cover non-exclusive inclusion.

[0039] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0040] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists, A and B exist simultaneously, or B exists. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0041] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0042] In the description of this application, unless otherwise stated, "multiple" means two or more (including two).

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection. A physical connection can be a fixed connection, such as a connection secured by spacers, screws, bolts, or other spacers. A physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection. A physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] The present application will be described in detail below with reference to the accompanying drawings.

[0045] Figure 1 Please refer to the three-dimensional structural diagram of a combination structure of a knob and a housing provided in the embodiments of this application. Figure 1 The knob 1 mentioned in this application is the power input terminal of the circuit breaker. Rotating the knob 1 changes the operating state of the circuit breaker. The housing 2 mainly provides protection for the internal structure of the circuit breaker. The knob 1 is mounted through the housing 2. The operating states of the circuit breaker typically include open, closed, and fault states.

[0046] Please continue to refer to this. Figure 1 In the prior art, the indicator section indicating the operating status of the circuit breaker is usually set on the housing 2 and located on the outer periphery of the knob 1. The knob 1 is provided with a corresponding indicator section. When the knob 1 is rotated and the indicator section points to a certain indicator section, it indicates that the circuit breaker is in the operating status indicated by the indicator section.

[0047] However, in some cases, the area on the housing 2 where the knob 1 is located is relatively small, making it difficult to install a marking on the outer periphery of the knob 1. An empty space must be found, which can cause the marking to deviate from its ideal position, resulting in inaccurate indication and making it difficult to determine the circuit breaker's operating status.

[0048] Based on this, this application provides a combined structure of a knob and a housing. Figure 2 for Figure 1 A schematic diagram of a structure of the middle shell. Figure 3 This is a schematic diagram of the structure of a knob provided in an embodiment of this application.

[0049] Please combine Figure 1 , Figure 2 and Figure 3The knob and housing combination structure provided in this application includes a knob 1 and a housing 2. The knob 1 includes a turntable 11 and a transmission part 12 disposed on one axial side of the turntable 11. The transmission part 12 is used to link with the operating structure of the circuit breaker. A display window 111 is provided on the turntable 11. A first mounting hole 21 is provided on the housing 2. The turntable 11 is located on the outside of the housing 2. The transmission part 12 passes through the first mounting hole 21 and can rotate relative to the housing 2.

[0050] The housing 2 is provided with a plurality of first marking sections 22 indicating the working status of the circuit breaker at the position opposite to the turntable 11. The plurality of first marking sections 22 are arranged circumferentially around the axis of the turntable 11. When the display window 111 of the turntable 11 corresponds to any of the first marking sections 22, the display window 111 displays the first marking section 22.

[0051] Specifically, in response to the technical problem that the limited space of the housing 2 makes it difficult to arrange the circuit breaker operating status indicator and makes it easy to deviate from the ideal position, this application arranges the first indicator part 22 indicating the circuit breaker operating status below the turntable 11. This allows the first indicator part 22 to not occupy additional housing 2 area, so that it can still be reasonably arranged under the condition of limited space.

[0052] Furthermore, this application also provides a display window 111 on the turntable 11, which rotates synchronously with the knob 1. During rotation, the display window 111 can dynamically reflect the current operating status of the circuit breaker, thus functioning as an indicator. When the display window 111 is aligned with a certain first indicator 22, the current operating status of the circuit breaker can be clearly reflected through that first indicator 22.

[0053] Furthermore, in this application, there is one display window 111 and multiple first identification parts 22. At the same time, the display window 111 displays only one first identification part 22, while the other identification parts are blocked by the turntable 11. This makes it easier for relevant personnel to quickly identify the current working status of the circuit breaker.

[0054] Furthermore, this application uses the display window 111 as an indicator on the knob 1. Visually, the display window 111 has a focusing effect, making it easy for the observer's line of sight to focus on the first indicator 22. This facilitates quick judgment of the current working status of the circuit breaker.

[0055] Please continue to refer to this. Figure 2 In some embodiments of this application, the first identifier 22 includes On, Off and Trip, where On indicates the closed state, Off indicates the open state and Trip indicates the fault state.

[0056] It should be noted that the combination structure of the knob 1 and housing 2 provided in this application is essentially a change in the position of the first marking part 22, and a corresponding structural change in the indicating part on the knob 1. This combination structure can be applied not only to circuit breakers to solve the problem of limited area in the circuit breaker housing 2 and difficulty in setting the first marking part 22, but also, based on the same idea, the combination structure of the knob 1 and housing 2 provided in this application can be used in other similar scenarios and devices, such as electric fans or other devices with similar requirements.

[0057] Please continue to refer to this. Figures 1 to 3 In some embodiments of this application, the housing 2 is provided with a plurality of second marking portions 23 opposite to the turntable 11. The second marking portion 23 is an indicator of the rotatable direction of the circuit breaker in the current working state. The second marking portion 23 is located next to the corresponding first marking portion 22. When the display window 111 of the turntable 11 corresponds to any first marking portion 22, the display window 111 exposes the first marking portion 22 and the corresponding second marking portion 23.

[0058] Specifically, such as Figure 2 As shown, in some embodiments of this application, when the first identifier 22 is On, a second identifier 23 is provided on the side of On. The second identifier 23 is an arrow pointing to Off. Thus, when the display window 111 displays On, it indicates that the circuit breaker is currently in the closed state. If it is to be opened, it needs to be rotated in the direction indicated by the arrow.

[0059] Similarly, when the first marking part 22 is Trip, a second marking part 23 is provided next to Trip. The second marking part 23 is an arrow pointing to Off. In this way, when the display window 111 displays Trip, it means that the circuit breaker is currently in a fault state and can only be rotated in the direction of opening. This can avoid misoperation and reduce safety hazards.

[0060] Similarly, when the first indicator 22 is Off, a second indicator 23 is provided next to Off. The second indicator 23 is an arrow pointing to On. Thus, when the display window 111 displays Off, it means that the circuit breaker is currently in the open state. If you want to close it, you need to rotate it in the direction indicated by the arrow.

[0061] As can be seen from the above, based on the combination structure of the knob 1 and the housing 2 provided in this embodiment, by providing a second marking part 23 on the side of the first marking part 22, and the display window 111 being able to simultaneously display the first marking part 22 and the corresponding second marking part 23, it is convenient for operators to operate the circuit breaker correctly, which can reduce the occurrence of misoperation and improve the safety of the circuit breaker.

[0062] Please continue to refer to this. Figures 1 to 3In some embodiments of this application, the first marking part 22 and the second marking part 23 are formed at the edge of the housing 2 and the turntable 11, and the display window 111 is a notch provided at the edge of the turntable 11.

[0063] Specifically, the first marking portion 22 and the second marking portion 23 are not necessarily located opposite the edge of the housing 2 and the turntable 11, and the display window 111 is not necessarily located at the edge of the turntable 11. In some embodiments, for example, when the diameter of the turntable 11 is large, the display window 111 may also be located close to the center area of ​​the turntable 11, thus changing the positions of the first marking portion 22 and the second marking portion 23.

[0064] In this embodiment, the display window 111 is set on the edge of the turntable 11, and the first marking part 22 and the second marking part 23 are formed on the housing 2 opposite to the edge of the turntable 11. In this way, the setting area of ​​the first marking part 22 and the second marking part 23 will be larger, which facilitates the arrangement of the first marking part 22 and the second marking part 23.

[0065] Meanwhile, since the areas where the first marking part 22 and the second marking part 23 are set are larger, the distance between the first marking part 22 and the second marking part 23 along the circumferential direction will be larger, making it easier to distinguish different working states.

[0066] Please continue to refer to this. Figure 1 In some embodiments of this application, the housing 2 is provided with an adjustment hole 24 and a lead sealing ring 25.

[0067] Figure 4 For a schematic diagram of the combined structure of knob 1 and housing 2 with lead seal plate 3 added in the circuit breaker closed state, please refer to [reference needed]. Figure 4 In some embodiments of this application, the combined structure of the knob 1 and the housing 2 further includes a lead seal plate 3, which has a lead seal hole for the lead seal ring 25 to be exposed.

[0068] Please combine Figure 1 and Figure 4 The lead seal plate 3 is detachably disposed on the outside of the housing 2, covering the adjustment hole 24, and is sealed to the housing 2 by a lead seal ring 25 passing through the lead seal hole. At least a portion of the edge of the turntable 11 can press against the outside of the lead seal plate 3.

[0069] Specifically, in some application scenarios of this application, the circuit breaker has multiple operating currents. The operating current of the circuit breaker can be adjusted according to the usage requirements. In this embodiment, the adjustment hole 24 on the housing 2 can be a hole designed to facilitate adjustment of the operating current.

[0070] In this embodiment, to prevent unauthorized regulation of the operating current, a lead-sealed ring 25 and a matching lead-sealed plate 3 are provided on the housing 2. The lead-sealed plate 3 and the lead-sealed ring 25 seal the regulating hole 24, thereby reducing unauthorized regulation of the operating current. Furthermore, if the lead-sealed structure is damaged, it indicates that a violation may have occurred, allowing for timely detection of the abnormality and appropriate remedial measures.

[0071] Based on this, at least a portion of the edge of the turntable 11 of this application presses against the outer side of the lead seal plate 3, thus the turntable 11 becomes a second barrier against unauthorized regulation of the operating current. Even if the lead seal structure is damaged or not sealed, the turntable 11 can still prevent the lead seal plate 3 from opening, further reducing the occurrence of unauthorized regulation of the operating current.

[0072] As an example, the lead seal plate 3 and the housing 2 can be connected by a hinge, and the lead seal plate 3 can rotate relative to the housing 2 when it is not sealed.

[0073] Figure 5 For a schematic diagram of the combined structure of knob 1 and housing 2 with lead seal plate 3 added in the circuit breaker open state, please refer to... Figure 1 , Figure 2 , Figure 4 and Figure 5 In some embodiments of this application, the first marking section 22 includes an open marking 221, a closed marking 222, and a fault marking 223. The lead seal housing 2 is located beside the open marking 221. When the display window 111 of the turntable 11 displays the open marking 221, the turntable 11 and the lead seal plate 3 do not overlap. When the display window 111 of the turntable 11 displays the closed marking 222 or the fault marking 223, the edge of the turntable 11 overlaps with the lead seal plate 3.

[0074] Specifically, in some other cases, it is necessary to adjust the operating current of the circuit breaker. If the housing 2 is still pressed against the outside of the lead seal plate 3 at this time, it will hinder the removal of the lead seal plate 3.

[0075] In this embodiment, the lead seal housing 2 is positioned beside the open circuit breaker indicator 221. When the display window 111 of the rotary table 11 displays the open circuit breaker indicator 221, the rotary table 11 and the lead seal housing 2 do not overlap. However, when the display window 111 displays the closed circuit breaker indicator 222 or the fault circuit breaker indicator 223, the edge of the rotary table 11 will overlap with the lead seal housing 2. This structure ensures that the rotary table 11 can prevent the lead seal housing 2 from opening only when the circuit breaker is in a closed or faulty state. In the open state, the opening of the lead seal housing 2 is not restricted by the rotary table 11.

[0076] Based on the combination structure of the knob 1 and housing 2 provided in this embodiment, the lead-seal housing 2 can be effectively prevented from being opened without authorization in the closed or fault state, thereby reducing the risk of unauthorized adjustment of the operating current. In the open state, the mechanical constraint on the lead-seal housing 2 is released, allowing the adjustment of the operating current to be carried out under safe conditions.

[0077] Please continue to refer to this. Figure 1 , Figure 4 and Figure 5 In some embodiments of this application, the lead seal plate 3 is a transparent insulating plate. This makes it easier for operators to locate the adjustment hole 24.

[0078] Please continue to refer to this. Figure 3 In one embodiment of this application, the turntable 11 includes a turntable body 112 and a straight-line operating part 113. The transmission part 12 and the straight-line operating part 113 are disposed on opposite sides of the turntable body 112 along the axial direction.

[0079] Along the radial direction of the turntable body 112, the display window 111 is located at the edge of the turntable body 112, and the straight-line operation part 113 is located on one side of the display window 111 and passes through the rotation center of the turntable body 112.

[0080] Specifically, in some embodiments of this application, the turntable 11 includes a turntable body 112 and a linear operating part 113, with the linear operating part 113 located on the outside of the turntable body 112. When performing closing and opening operations on the circuit breaker, a torsional force can be applied to the linear operating part 113, thereby driving the turntable body 112 and the transmission part 12 connected to the turntable body 112 to rotate.

[0081] Of course, in some other embodiments of this application, the turntable 11 only includes the turntable body 112, and the straight-line operating part 113 may not be provided. When performing closing and opening operations on the circuit breaker, force can be applied circumferentially to the turntable body 112, thereby driving the transmission part 12 to rotate.

[0082] However, in some cases, the opening and closing operations of the circuit breaker are carried out by other equipment. A straight-line operating section 113 is provided on the outside of the turntable 11, which facilitates the connection of external equipment with the straight-line operating section 113 to control the circuit breaker.

[0083] Furthermore, the display window 111 typically occupies a relatively small area on the turntable body 112, and therefore is not very conspicuous. In this embodiment, the linear operation section 113 is located on one side of the display window 111 and passes through the rotation center of the turntable body 112. Thus, visually, the linear operation section 113 is more easily seen, making it easier to identify the display window 111 on one side of the linear operation section 113.

[0084] Figure 6 for Figure 3 The diagram shows the structure of the knob from another perspective. Figure 7 for Figure 3 Please refer to the exploded view of knob 1 shown. Figure 6 and Figure 7 In one embodiment of this application, the knob 1 includes a knob body 1A and a keyhole plate 1B.

[0085] The knob body 1A includes a turntable body 112, a transmission part 12, and a first operation part 1131, the first operation part 1131 being a part of the straight-line operation part 113.

[0086] A plug hole 1A1 is provided on one radial side of the knob body 1A. The plug hole 1A1 is formed on the turntable body 112 and the first operating part 1131.

[0087] The key plate 1B includes a plug-in portion 1B1 and a second operating portion 1132 connected to each other. The plug-in portion 1B1 can be plugged into the plug-in hole 1A1 along the radial direction of the turntable body 112. The second operating portion 1132 is another part of the straight operating portion 113, and can be spliced ​​with the first operating portion 1131 along the radial direction of the turntable body 112 to form a complete straight operating portion 113.

[0088] Specifically, the lock hole plate 1B is a padlock component. When the circuit breaker needs electrical maintenance or repair, the lock hole plate 1B can be used to lock the circuit breaker in the open state to prevent others from accidentally closing it, thereby ensuring the absolute safety of the operators.

[0089] The keyhole plate 1B and the knob body 1A have two assembly states, one of which is... Figure 3 In the non-padlock state shown, the plug part 1B1 is inserted into the plug hole 1A1 along the radial direction of the turntable body 112. The second operating part 1132 and the first operating part 1131 are joined together along the radial direction of the turntable body 112 to form a complete straight operating part 113. The knob 1 can be rotated to perform normal closing and opening operations. The other state is the padlock state. In this state, the circuit breaker is in the open state. The operator can use the second operating part 1132 of the lock hole plate 1B to pull the plug part 1B1 of the lock hole plate 1B out of the plug hole 1A1 a certain distance, so that the lock hole plate 1B hinders the rotation of the knob body 1A.

[0090] Please continue to refer to this. Figure 6 and Figure 7 In the padlocked state, the first locking hole 1A2 on the knob body 1A is aligned with the second locking hole 1B2 on the plug part 1B1. By padlocking at the first locking hole 1A2 and the second locking hole 1B2, the locking plate 1B is kept in a state of obstruction to the rotation of the knob body 1A, thereby keeping the circuit breaker in the open state.

[0091] It should be noted that the locking plate 1B, in conjunction with the rotating body, locks the circuit breaker in the open state, which is existing technology. The specific structure of the locking plate 1B will not be described in detail here.

[0092] Based on the combined structure of knob 1 and housing 2 provided in this embodiment, knob 1 also has a padlock function, which can prevent others from accidentally closing the circuit breaker during maintenance or repair, thereby ensuring the absolute safety of the operator.

[0093] Please continue to refer to this. Figure 7 In one embodiment of this application, a display window 111 is formed on the edge of the turntable body 112 on the side where the insertion hole 1A1 is provided, and is connected to the insertion hole 1A1, which facilitates the manufacture of the knob body 1A.

[0094] Please continue to refer to this. Figure 2 In some embodiments of this application, either the first marking portion 22 or the second marking portion 23 is formed by laser engraving. This makes the first marking portion 22 and the second marking portion 23 clearer, less prone to wear, and accurately identifiable even after prolonged use.

[0095] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0096] The above-described embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A combination structure of knob and housing for a circuit breaker, characterized in that, include: A knob, comprising a turntable and a transmission part disposed on one axial side of the turntable, the transmission part being used to link with the operating structure of the circuit breaker; a display window is provided on the turntable; The housing has a first mounting hole, the turntable is located outside the housing, and the transmission part passes through the first mounting hole and can rotate relative to the housing. The housing is provided with a plurality of first markings indicating the working status of the circuit breaker at the location opposite to the turntable, and the plurality of first markings are arranged circumferentially around the axis of the turntable; When the display window of the turntable corresponds to any of the first marking portions, the display window exposes the first marking portion.

2. The combination structure of the knob and the housing according to claim 1, characterized in that, The housing is also provided with a plurality of second marking sections opposite to the turntable. The second marking sections indicate the rotatable direction of the circuit breaker in the current working state. The second identifier is located next to the corresponding first identifier. When the display window of the turntable corresponds to any of the first identifiers, the display window displays the first identifier and the corresponding second identifier.

3. The combination structure of the knob and the housing according to claim 2, characterized in that, The first marking portion and the second marking portion are formed at the location where the housing and the edge of the turntable are opposite each other, and the display window is a notch provided at the edge of the turntable.

4. The combination structure of the knob and the housing according to claim 3, characterized in that, The housing is provided with an adjustment hole and a lead sealing ring; The combined structure of the knob and the housing also includes a lead seal plate, which has a lead seal hole for the lead seal ring to be exposed. The lead seal plate is detachably disposed on the outside of the housing, covering the adjustment hole, and is sealed to the housing by the lead seal ring passing through the lead seal hole; At least a portion of the edge of the turntable can press against the outside of the lead seal plate.

5. The combination structure of the knob and the housing according to claim 4, characterized in that, The first identification section includes an open circuit indicator, an closed circuit indicator, and a fault indicator; The lead seal on the housing is located next to the tripped indicator. When the tripped indicator is displayed in the display window of the rotary table, the rotary table and the lead seal plate do not overlap. When the closed indicator or fault indicator is displayed in the display window of the rotary table, the edge of the rotary table overlaps with the lead seal plate.

6. The combination structure of the knob and the housing according to claim 4 or 5, characterized in that, The lead seal plate is a transparent insulating plate.

7. The combination structure of the knob and housing according to any one of claims 1 to 5, characterized in that, The turntable includes the turntable body and a straight-line operating unit; The transmission unit and the straight-line operating unit are located on opposite sides of the turntable body along its axial direction; Along the radial direction of the turntable body, the display window is located at the edge of the turntable body, and the linear operating part is located on one side of the display window and passes through the rotation center of the turntable body.

8. The combination structure of the knob and the housing according to claim 7, characterized in that, The knob includes a knob body and a keyhole plate; The knob body includes the turntable body, the transmission part and the first operation part, wherein the first operation part is a part of the straight-line operation part; A plug hole is provided on one radial side of the knob body, and the plug hole is formed in the turntable body and the first operating part; The keyhole plate includes a connected insertion part and a second operating part; the insertion part can be inserted into the insertion hole along the radial direction of the turntable body; the second operating part is another part of the straight operating part, and can be spliced ​​with the first operating part along the radial direction of the turntable body to form the complete straight operating part.

9. The combination structure of the knob and the housing according to claim 8, characterized in that, The display window is formed on the edge of the turntable body on the side where the insertion hole is located, and is connected to the insertion hole.

10. The combination structure of the knob and housing according to any one of claims 2 to 5, characterized in that, Either the first marking portion or the second marking portion is formed by laser engraving.

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