Handle structure and circuit breaker

Abstract

The utility model discloses a handle structure and a circuit breaker, and relates to the technical field of low-voltage electric appliances, the handle structure is installed on a shell, and the handle structure comprises a handle main body and an elastic piece. The handle body comprises a mounting part, a first clamping part and a second clamping part. The elastic piece is connected to the mounting part, a first force arm of the elastic piece is connected to the first clamping part, and a second force arm of the elastic piece is connected to the second clamping part. The elastic piece can be preassembled to the handle body and form a preassembling module, at least one of the first force arm and the second force arm extends to the outer side of the handle body, and the extending part can abut against the inner wall of the shell. According to the handle structure and the circuit breaker provided by the invention, the operation of assembling the handle to the circuit breaker shell can be simplified, and the assembling efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to a handle structure and a circuit breaker. Background Art

[0002] In a miniature circuit breaker, the handle is a structure that can control the opening and closing of the circuit breaker. It is usually rotatably set on the housing of the circuit breaker. An elastic part is also connected to the handle. At the moment the circuit breaker is opened, the elastic part releases the elastic force to quickly return the handle to the open state.

[0003] In the prior art, when the handle is assembled to the housing of the circuit breaker, the elastic part needs to be assembled to the housing first, and then the handle is assembled to the housing and connected to the elastic part. This assembly operation is relatively complicated, not conducive to rapid assembly, and has low production efficiency. Utility Model Content

[0004] The purpose of the present application is to provide a handle structure and a circuit breaker, which can simplify the operation of assembling the handle to the circuit breaker housing and improve the assembly efficiency.

[0005] In a first aspect, embodiments of the present application provide a handle structure mounted on a housing, the handle structure comprising a handle body and an elastic member. The handle body comprises a mounting portion, a first clamping portion, and a second clamping portion. The elastic member is connected to the mounting portion, a first lever arm of the elastic member is connected to the first clamping portion, and a second lever arm of the elastic member is connected to the second clamping portion. The elastic member can be pre-installed on the handle body to form a pre-installed module, with at least one of the first lever arm and the second lever arm extending to the outside of the handle body, and the extended portion being capable of abutting against the inner wall of the housing.

[0006] Based on the above-mentioned embodiments of the present application, by connecting the elastic member to the mounting portion of the handle body, and utilizing the corresponding clamping of the first force arm and the first clamping portion as well as the second force arm and the second clamping portion, a stable assembly of the elastic member and the handle body is achieved, so that the handle body and the elastic member constitute a pre-installed module, which can achieve quick assembly when the handle structure is assembled to the shell, effectively simplifying the assembly operation and improving assembly efficiency.

[0007] In some examples, a receiving groove is provided on the handle body, the mounting portion is disposed in the receiving groove, the first clamping portion is disposed on the side wall of the receiving groove, and the second clamping portion is disposed on the side wall or bottom wall of the receiving groove.

[0008] Based on the above-mentioned embodiments of the present application, the mounting portion is arranged in the receiving groove, and the elastic member is located in the receiving groove after being connected to the mounting portion. The elastic member in the receiving groove can reduce the risk of loosening and detachment from the mounting portion, and can also prevent other structures in the shell from affecting the normal use of the elastic member, as well as external environmental factors such as dust or moisture from affecting the normal use of the elastic member, thereby improving the safety of the elastic member.

[0009] In some examples, a sidewall of the receiving groove is provided with a clearance groove, and at least one of the first lever arm and the second lever arm can move in the clearance groove.

[0010] Based on the above-mentioned embodiments of the present application, the opening of the giveway groove can play an avoidance role, and at least one of the first force arm and the second force arm can move in the giveway groove, that is, the first force arm can be clamped into the first clamping part through the giveway groove, and the second force arm can also be clamped into the second clamping part through the giveway groove. Therefore, the opening of the giveway groove facilitates the assembly of the elastic part to the mounting part, simplifies the assembly operation, and improves the assembly efficiency.

[0011] In some examples, the first engaging portion is a first engaging groove, which is disposed on a side wall of the receiving groove and communicates with the clearance groove, and the first lever arm is engaged with the first engaging groove. The second engaging portion is a second engaging groove, which is disposed on a side wall of the receiving groove and communicates with the clearance groove, and the second lever arm is engaged with the second engaging groove. Alternatively, the second engaging portion is a through-hole, which is disposed on a bottom wall of the receiving groove, and the second lever arm is engaged with the through-hole.

[0012] Based on the above-described embodiments of the present application, the first engaging portion is configured as a engaging groove, which simplifies the structure, facilitates the engagement with the first lever, and simplifies the assembly operation. Similarly, the second engaging portion is configured as a engaging groove identical to the first engaging portion, which also has the characteristics of being simple in structure, facilitates the engagement with the second lever, and simplifies the assembly operation. By correspondingly engaging the first lever and the second lever through the first engaging groove and the second engaging groove, the assembly structure is effectively simplified, the difficulty of the assembly operation is reduced, and the assembly efficiency is improved.

[0013] In some examples, the second force arm is bent to form a limiting rod, and the limiting rod can pass through the latching through hole and abut against a side of the latching through hole facing away from the bottom wall of the accommodating groove.

[0014] Based on the above-mentioned embodiments of the present application, the second force arm is bent to form a limit rod, which can be hung on the side of the card-connecting hole away from the bottom wall of the accommodating groove after the second force arm passes through the card-connecting hole. This not only reduces the risk of the second force arm detaching from the card-connecting hole in the length direction of the card-connecting hole, but also reduces the risk of the second force arm detaching from the card-connecting hole in the direction of entering the card-connecting hole, thereby further improving the connection stability between the second force arm and the card-connecting hole.

[0015] In some examples, the elastic member is a torsion spring, which is sleeved on the mounting portion, with the first force arm connected to the first clamping slot, and the second force arm connected to the second clamping slot or the clamping through hole.

[0016] Based on the above-mentioned embodiments of the present application, selecting a torsion spring as an elastic part is easier to assemble with the handle body than other types of elastic parts. The torsion spring can be directly mounted on the mounting portion, and the first force arm and the second force arm of the torsion spring can be correspondingly clamped into the first clamping portion and the second clamping portion. During the rotation of the handle body, at least one of the first force arm and the second force arm of the torsion spring is squeezed to store energy in the torsion spring, so that during the opening process, the torsion spring can drive the handle body to rotate quickly to the opening position. This assembly and matching form is simple and efficient, easy to install and use, and the torsion spring can provide stable elastic force to ensure that the handle body can be rotated to the opening position in time.

[0017] In some examples, the first moment arm of the torsion spring extends from the first engaging groove to the outside of the handle body.

[0018] Based on the above-mentioned embodiments of the present application, the first force arm of the torsion spring extends from the first clamping groove to the outside of the handle body and is mainly used to abut against the housing of the switching device. In this way, when the handle body rotates relative to the housing to perform a closing operation, the first force arm does not rotate with the handle body, and the second force arm rotates with the handle body, so that the torsion spring enters and remains in the energy storage state. This setting does not require the aid of other additional structures, effectively simplifies the assembly operation, and improves assembly efficiency.

[0019] In some examples, a rotating connection portion is provided at each end of the handle body, and a rotating connection seat is provided at a corresponding position on the inner wall of the shell. The rotating connection portion has a linkage hole, which can be connected to a linkage rod, and the linkage rod can simultaneously connect at least two handle bodies.

[0020] Based on the above-described embodiments of the present application, the use of a rotational connection portion and a rotational connection hole allows the handle body to be stably rotationally connected to the housing, simplifying the connection and assembly operation between the handle body and the housing, thereby improving assembly efficiency. Furthermore, the linkage hole provided in the rotational connection portion facilitates the synchronous connection of multiple switch devices, thereby simultaneously controlling multiple switch devices arranged in parallel, thereby expanding the scope of application of the switch device and handle structure.

[0021] In some examples, one linkage hole is provided, and the linkage hole passes through both rotating connecting parts. Alternatively, two linkage holes are provided, and the two rotating connecting parts are respectively provided with a linkage hole.

[0022] Based on the above-mentioned embodiments of the present application, the through-hole arrangement facilitates quick assembly, and only a single linkage rod is required to achieve multi-pole linkage, resulting in a simple structure and easy processing and assembly. Providing linkage holes at both ends of the handle body also achieves multi-stage linkage and avoids the situation where a single linkage rod cannot simultaneously connect to multiple switch devices due to manufacturing errors, thereby improving assembly accuracy.

[0023] In a second aspect, an embodiment of the present application further provides a circuit breaker, comprising a housing and the above-mentioned handle structure, wherein the handle structure is partially located within the housing.

[0024] Based on the above-mentioned embodiments of the present application, a circuit breaker with the above-mentioned handle structure can effectively simplify the structure and assembly operation of the handle structure to the circuit breaker, improve the assembly efficiency between the two, and improve the installation stability and use stability of the handle structure on the circuit breaker, further ensuring that the opening and closing of the circuit breaker can be carried out normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a first view of the handle structure provided in an embodiment of the present application assembled to a housing.

[0027] Figure 2 A second view of the handle structure provided in an embodiment of the present application being assembled to a housing.

[0028] Figure 3 This is one of the overall structural schematic diagrams of the handle structure provided in an embodiment of the present application.

[0029] Figure 4 This is the second schematic diagram of the overall structure of the handle structure provided in the embodiment of the present application.

[0030] Figure 5 This is a schematic structural diagram of the handle body provided in an embodiment of the present application.

[0031] Figure 6 This is an exploded view of the handle structure provided in an embodiment of the present application.

[0032] Figure 7 A schematic structural diagram of the elastic member provided in an embodiment of the present application.

[0033] Figure 8 This is a schematic diagram of the assembly structure of the handle structure provided in the embodiment of the present application within the housing.

[0034] Figure 9 This is the second schematic diagram of the assembly structure of the handle structure provided in the embodiment of the present application within the housing.

[0035] Description of reference numerals:

[0036] 100. Handle structure; 1. Handle body; 11. Mounting portion; 12. First clamping portion; 121. First clamping groove; 13. Second clamping portion; 131. Clamping through hole; 14. Accommodating groove; 15. Giving way groove; 16. Rotational connection portion; 17. Linkage hole; 2. Elastic member; 21. First lever arm; 22. Second lever arm; 221. Limiting rod; 23. Torsion portion; 3. Operating portion; 200. Shell; 201. Limiting wall; 202. Rotational connection seat; 203. Through hole. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0040] In the description of this application, it should be noted that the terms "inside" and "outside" and the like indicate positions or locations based on the positions or locations shown in the accompanying drawings, or the positions or locations in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0041] It should also be noted that, in the description of this application, unless otherwise specified or limited, the terms "disposition" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; they can refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0042] In a small circuit breaker or other similar switching devices, the handle is an important component for manual or automatic control of opening and closing. It is usually rotatably arranged in the switching device. The handle is also connected to an elastic member in the switching device. The elastic member can apply elastic force to the handle. When operating the handle to close the circuit, it is necessary to overcome the elastic force provided by the elastic member. After closing the circuit, the rotation of the handle is locked, and the elastic member remains in the energy storage state. At the moment of opening the circuit, the rotation of the handle is unlocked. The handle can be rotated to the opening state under the elastic force of the elastic member, thereby achieving rapid opening.

[0043] However, in the prior art, when assembling the handle to the switch device, the elastic part must first be installed on the housing of the switch device, then the handle and the elastic part must be connected, and then the handle must be installed on the housing. This assembly process is complicated and not easy to achieve quick assembly.

[0044] Based on this, the embodiments of the present application provide a handle structure and a circuit breaker, which can simplify the operation of assembling the handle to the circuit breaker housing, improve assembly efficiency, and facilitate rapid assembly.

[0045] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0046] Please refer to Figures 1 to 4 The present embodiment provides a handle structure 100, which is installed on a housing 200. The handle structure 100 includes a handle body 1 and an elastic member 2. The handle body 1 includes a mounting portion 11, a first clamping portion 12, and a second clamping portion 13. The elastic member 2 is connected to the mounting portion 11, the first force arm 21 of the elastic member 2 is connected to the first clamping portion 12, and the second force arm 22 of the elastic member 2 is connected to the second clamping portion 13. The elastic member 2 can be pre-installed on the handle body 1 and form a pre-installed module, at least one of the first force arm 21 and the second force arm 22 extends to the outside of the handle body 1, and the extended portion can abut against the inner wall of the housing 200.

[0047] Based on the above-mentioned embodiments of the present application, by connecting the elastic member 2 to the mounting portion 11 of the handle body 1, and utilizing the corresponding clamping of the first force arm 21 and the first clamping portion 12 as well as the second force arm 22 and the second clamping portion 13, the elastic member 2 and the handle body 1 are stably assembled, so that the handle body 1 and the elastic member 2 constitute a pre-installed module, which can achieve quick assembly when the handle structure 100 is assembled to the shell 200, effectively simplifying the assembly operation and improving the assembly efficiency.

[0048] Among them, reference Figure 3 and Figure 4The mounting portion 11 is at least partially located between the first clamping portion 12 and the second clamping portion 13, and the first clamping portion 12 and the second clamping portion 13 are spaced apart relative to the mounting portion 11. The main body of the elastic member 2 is connected to the mounting portion 11, and the first force arm 21 of the elastic member 2 is correspondingly connected to the first clamping portion 12, and the second force arm 22 is correspondingly connected to the second clamping portion 13. There is a preset distance and a preset angle between the first clamping portion 12 and the second clamping portion 13, so that the elastic member 2 can be in an energy storage state after being installed on the handle body 1. In this state, the first force arm 21 can be stably clamped in the first clamping portion 12, and the second force arm 22 can be stably clamped in the second clamping portion 13, thereby preventing the elastic member 2 from loosening or falling off on the handle body 1 and improving assembly stability.

[0049] The preset distance, that is, the distance between the first clamping portion 12 and the second clamping portion 13, is smaller than the distance between the first force arm 21 and the second force arm 22 when the elastic member 2 is in a natural state. The preset angle, that is, the angle between the first clamping portion 12 and the second clamping portion 13 relative to the mounting portion 11 is smaller than the angle between the first force arm 21 and the second force arm 22 when the elastic member 2 is in a natural state. This arrangement can enable the elastic member 2 to have an elastic preload after being connected to the mounting portion 11, so that the elastic member 2 is stably connected to the mounting portion 11.

[0050] Reference Figure 1 and Figure 2 The handle structure 100 can rotate relative to the housing 200, and at least one of the first lever arm 21 and the second lever arm 22 of the elastic member 2 extends from the handle body 1 and abuts the housing 200. During the process of rotating the handle structure 100 relative to the housing 200 to close the switch, at least one of the first lever arm 21 and the second lever arm 22 is blocked by the housing 200, and the elastic member 2 continues to store energy.

[0051] When the operating handle structure 100 completes closing, the rotation of the handle structure 100 is locked by the relevant structure within the housing 200, and the elastic member 2 remains in the energy storage state. At the moment of opening, the rotation of the handle structure 100 is unlocked, the elastic member 2 releases energy, and the portions of the first and second lever arms 21 and 22 blocked by the housing 200 remain stationary, allowing the handle structure 100 to quickly rotate to the opening position, thereby completing the opening. This fit between the elastic member 2 and the housing 200 is formed after the handle structure 100 is assembled to the housing 200. The structure is simple, and no additional assembly operations are required, effectively improving assembly efficiency.

[0052] In an optional embodiment, the elastic member 2 can be configured as a torsion spring, a spring, a spring, or a coil spring, and the selection can be made based on the specific connection form between the first lever arm 21 and the first clamping portion 12, and between the second lever arm 22 and the second clamping portion 13. For example, the first clamping portion 12 can be configured as a clamping groove or a clamping hole, and the first lever arm 21 can be configured as a rod or a plate. The first lever arm 21 can be provided with a clamping structure corresponding to the clamping groove or the clamping hole, so that the first lever arm 21 and the first clamping portion 12 are stably clamped.

[0053] Reference Figure 5 In some examples, a receiving groove 14 is provided on the handle body 1 , the mounting portion 11 is arranged in the receiving groove 14 , the first clamping portion 12 is arranged on the side wall of the receiving groove 14 , and the second clamping portion 13 is arranged on the side wall or bottom wall of the receiving groove 14 .

[0054] Based on the above-mentioned embodiments of the present application, the mounting portion 11 is set in the receiving groove 14, and the elastic member 2 is located in the receiving groove 14 after being connected to the mounting portion 11. The elastic member 2 in the receiving groove 14 can reduce the risk of loosening and detachment from the mounting portion 11. It can also prevent other structures in the shell 200 from affecting the normal use of the elastic member 2, and prevent external environmental factors such as dust or moisture from affecting the normal use of the elastic member 2, thereby improving the safety of use of the elastic member 2.

[0055] Reference Figure 3 and Figure 5 The receiving groove 14 is formed at the end of the handle body 1. The mounting portion 11 is provided at the bottom of the receiving groove 14 and is located at the center of the bottom of the groove. The mounting portion 11 is a protrusion provided at the bottom of the receiving groove 14. After the elastic member 2 is connected to the mounting portion 11, it can be completely located in the receiving groove 14. The first clamping portion 12 is provided on the side wall of the receiving groove 14. The first force arm 21 of the elastic member 2 can extend toward the side wall of the receiving groove 14 and be clamped into the first clamping portion 12.

[0056] The second engaging portion 13 can be disposed on the side wall of the receiving groove 14 or on the bottom wall of the receiving groove 14. When disposed on the side wall of the receiving groove 14, the second engaging portion 13 and the first engaging portion 12 are located at different positions on the side wall of the receiving groove 14, and the second force arm 22 and the first force arm 21 of the elastic member 2 are correspondingly engaged with the second engaging portion 13 and the first engaging portion 12, so that the elastic member 2 generates an elastic preload, thereby maintaining a stable engaging state.

[0057] Reference Figure 5When the second clamping portion 13 is set on the bottom wall of the accommodating groove 14, the first clamping portion 12 and the second clamping portion 13 are located at different positions of the mounting portion 11. Compared with the aforementioned form in which the second clamping portion 13 is set on the side wall of the accommodating groove 14, the second clamping portion 13 is set on the bottom wall of the accommodating groove 14 so that the direction in which the first force arm 21 disengages from the first clamping portion 12 is different from the direction in which the second force arm 22 disengages from the second clamping portion 13. This can avoid the first force arm 21 and the second force arm 22 disengaging at the same time, and prevent the elastic member 2 from detaching from the mounting portion 11 when the elastic member 2 is compressed by force, which is beneficial to improving the assembly stability of the elastic member 2 and the mounting portion 11.

[0058] Reference Figure 5 and Figure 6 In some examples, a side wall of the accommodating groove 14 is provided with a clearance groove 15 , and at least one of the first lever arm 21 and the second lever arm 22 can move in the clearance groove 15 .

[0059] Based on the above-mentioned embodiments of the present application, the opening of the giveway groove 15 can play an avoidance role, and at least one of the first force arm 21 and the second force arm 22 can move in the giveway groove 15, that is, the first force arm 21 can be clamped into the first clamping portion 12 through the giveway groove 15, and the second force arm 22 can also be clamped into the second clamping portion 13 through the giveway groove 15. Therefore, the opening of the giveway groove 15 facilitates the assembly of the elastic member 2 to the mounting portion 11, simplifies the assembly operation, and improves the assembly efficiency.

[0060] Reference Figure 5 The giveway groove 15 is opened on the side wall of the accommodating groove 14, and the first clamping portion 12 is set on the side wall of the accommodating groove 14. The giveway groove 15 is connected with the position where the first clamping portion 12 is located. When the first force arm 21 is clamped into the first clamping portion 12, the first force arm 21 first enters the giveway groove 15, and then clamps into the first clamping portion 12 from the giveway groove 15. The assembly operation is simple and efficient.

[0061] When the second engaging portion 13 is disposed on the side wall of the receiving groove 14, the clearance groove 15 is also connected to the location of the second engaging portion 13, which also facilitates the second force arm 22 to be engaged with the second engaging portion 13. The clearance groove 15 can also be connected to the second engaging portion 13 located on the bottom wall of the receiving groove 14, so that the second force arm 22 can be engaged with the second engaging portion 13 located on the bottom wall of the receiving groove 14.

[0062] Reference Figure 5 and Figure 6In some examples, the first engaging portion 12 is a first engaging groove 121, which is disposed on the sidewall of the receiving groove 14 and communicates with the clearance groove 15. The first lever 21 is engaged with the first engaging groove 121. The second engaging portion 13 is a second engaging groove, which is disposed on the sidewall of the receiving groove 14 and communicates with the clearance groove 15. The second lever 22 is engaged with the second engaging groove. Alternatively, the second engaging portion 13 is a engaging through hole 131, which is disposed on the bottom wall of the receiving groove 14 and communicates with the clearance groove 15. The second lever 22 is engaged with the second engaging groove.

[0063] Based on the above-described embodiments of the present application, the first engaging portion 12 is configured as a engaging groove, which simplifies the structure, facilitates the engagement with the first lever 21, and simplifies the assembly operation. Similarly, the second engaging portion 13 is configured as a engaging groove identical to the first engaging portion 12, which also has the characteristics of a simple structure, facilitates the engagement with the second lever 22, and simplifies the assembly operation. The first engaging groove 121 and the second engaging groove correspondingly engage the first lever 21 and the second lever 22, effectively simplifying the assembly structure, reducing the difficulty of the assembly operation, and improving assembly efficiency.

[0064] The first clamping groove 121 is opened on the side wall of the accommodating groove 14 and is connected with the giving way groove 15. When the second clamping groove is also opened on the side wall of the accommodating groove 14 and is connected with the giving way groove 15, the opening directions of the first clamping groove 121 and the second clamping groove are opposite. During the assembly process, it is only necessary to move the first force arm 21 along the giving way groove 15 and enter the first clamping groove 121, and move the second force arm 22 along the giving way groove 15 and enter the second clamping groove, so that the elastic member 2 is in a compressed state. Under the action of the elastic preload force, the first force arm 21 is stably clamped in the first clamping groove 121, and the second force arm 22 is stably clamped in the second clamping groove.

[0065] When the second clamping portion 13 is set as a clamping through hole 131, the clamping through hole 131 is opened on the bottom wall of the accommodating groove 14. Under this setting, the first force arm 21 of the elastic member 2 is clamped into the first clamping groove 121, and the second force arm 22 extends toward the bottom wall of the accommodating groove 14 and passes through and clamps at the clamping through hole 131. Like the aforementioned embodiment, the elastic member 2 can be stably connected to the handle body 1.

[0066] The structures of the first clamping portion 12 and the second clamping portion 13 can also be set to other forms. For example, the first clamping portion 12 is set to a clamping boss, and a corresponding clamping hole or clamping groove is set on the first force arm 21. This matching form can also achieve a stable connection between the elastic member 2 and the handle body 1.

[0067] Reference Figure 4In some examples, the second lever arm 22 is bent to form a limiting rod 221 , which can pass through the card hole 131 and abut against the side of the card hole 131 away from the bottom wall of the accommodating groove 14 .

[0068] Based on the above-mentioned embodiments of the present application, the second force arm 22 is bent to form a limit rod 221, which can be hung on the side of the card-connecting hole 131 away from the bottom wall of the accommodating groove 14 after the second force arm 22 passes through the card-connecting hole 131. This not only reduces the risk of the second force arm 22 detaching from the card-connecting hole 131 in the length direction of the card-connecting hole 131, but also reduces the risk of the second force arm 22 escaping from the card-connecting hole 131 in the direction of entering the card-connecting hole 131, thereby further improving the connection stability between the second force arm 22 and the card-connecting hole 131.

[0069] Specifically, refer to Figure 4 and Figure 7 The limiting rod 221 is bent into a U-shape, and the width of the U-shaped opening of the U-shaped limiting rod 221 is slightly larger than the thickness of the bottom wall of the receiving groove 14. After the limiting rod 221 passes through the locking hole 131, the U-shaped opening can wrap around a portion of the bottom wall of the receiving cavity. This prevents the limiting rod 221 from slipping out of the locking hole 131 in the direction from which it entered, ensuring a stable and reliable assembly between the limiting rod 221 and the locking hole 131. The limiting rod 221 can also be bent into other shapes as long as it can smoothly pass through the locking hole 131 and be locked on the locking hole 131.

[0070] The engaging hole 131 is configured as a waist-shaped hole, and the length of the limiting rod 221 after bending is smaller than the length of the engaging hole 131, so that the limiting rod 221 can be smoothly passed through and engaged with the engaging hole 131. Of course, the engaging hole 131 can also be configured as other shapes, such as a rectangular or annular cross-section.

[0071] Reference Figure 7 In some examples, the elastic member 2 is a torsion spring, which is sleeved on the mounting portion 11 , the first force arm 21 is connected to the first clamping groove 121 , and the second force arm 22 is connected to the second clamping groove or the clamping through hole 131 .

[0072] Based on the above-mentioned embodiments of the present application, selecting a torsion spring as the elastic member 2 is easier to assemble with the handle body 1 than other types of elastic members 2. The torsion spring can be directly mounted on the mounting portion 11, and the first force arm 21 and the second force arm 22 of the torsion spring can be correspondingly clamped into the first clamping portion 12 and the second clamping portion 13. During the rotation of the handle body 1, at least one of the first force arm 21 and the second force arm 22 of the torsion spring is squeezed to store energy of the torsion spring, so that during the opening process, the torsion spring can drive the handle body 1 to rotate quickly to the opening position. This assembly and matching form is simple and efficient, easy to install and use, and the torsion spring can stably provide elastic force to ensure that the handle body 1 can be rotated to the opening position in time.

[0073] Specifically, the torsion portion 23 on the torsion spring, which can generate elastic force, is sleeved on the mounting portion 11 protruding from the bottom wall of the receiving groove 14. The first force arm 21 and the second force arm 22 of the torsion spring extend in a direction away from the torsion portion 23. The first force arm 21 extends toward the side wall of the receiving groove 14 and snaps into the first snap-fitting groove 121. The second force arm 22 can extend toward the side wall of the receiving groove 14 and snap into the second snap-fitting groove, or extend toward the bottom wall of the receiving groove 14 and snap into the snap-fitting through hole 131. This arrangement ensures that the torsion spring is stably assembled on the handle body 1 and largely prevents the torsion spring from detaching from the handle body 1.

[0074] Reference Figure 2 and Figure 3 In some examples, the first lever arm 21 of the torsion spring extends from the first engaging groove 121 to the outside of the handle body 1 .

[0075] Based on the above-mentioned embodiments of the present application, the first force arm 21 of the torsion spring extends from the first clamping groove 121 to the outside of the handle body 1 and is mainly used to abut against the housing 200 of the switching device. In this way, when the handle body 1 rotates relative to the housing 200 to perform a closing operation, the first force arm 21 does not rotate with the handle body 1, and the second force arm 22 rotates with the handle body 1, so that the torsion spring enters and remains in the energy storage state. This setting does not require the use of other additional structures, effectively simplifies the assembly operation, and improves assembly efficiency.

[0076] The housing 200 is provided with a limiting wall 201 for abutting the first lever 21 . When the switch device is in the off state, the handle body 1 is in the initial rotation position, and the first lever 21 extends from the first engaging groove 121 and can abut against the limiting wall 201 .

[0077] When the switch device is closed, the handle body 1 rotates, and the first force arm 21 is restricted by the limiting wall 201 in the direction of rotation of the handle body 1, so that the torsion spring enters an energy storage state.

[0078] When the switch device is opened, the first force arm 21 is also limited by the limiting wall 201, and the handle body 1 is driven by the second force arm 22 to rotate toward the initial rotation position to complete the opening.

[0079] Reference Figure 4 and Figure 5 In some examples, a rotating connection portion 16 is provided at both ends of the handle body 1, and a rotating connection seat 202 is provided at a corresponding position on the inner wall of the housing 200. A linkage hole 17 is provided on the rotating connection portion 16, and the linkage hole 17 can be connected to a linkage rod, which can simultaneously connect at least two handle bodies 1.

[0080] Based on the above-described embodiments of the present application, the use of the rotational connection portion 16 and the rotational connection hole allows the handle body 1 to be stably rotationally connected to the housing 200, simplifying the connection and assembly operation between the handle body 1 and the housing 200, thereby improving assembly efficiency. Furthermore, the linkage hole 17 provided on the rotational connection portion 16 facilitates the synchronous connection of multiple switch devices, thereby simultaneously controlling multiple switch devices arranged in parallel, thereby expanding the scope of application of the switch devices and the handle structure 100.

[0081] Reference Figure 4 and Figure 5 One end of the mounting portion 11 is provided on the handle body 1, and the rotating connecting portion 16 is provided on the mounting portion 11. The rotating connecting portion 16 is provided on the surface of the mounting portion 11 away from the bottom wall of the accommodating groove 14. The rotating connecting portion 16 is a boss structure protruding from the surface of the mounting portion 11.

[0082] At the other end of the handle body 1, the rotation connection portion 16 directly protrudes from the end surface of the handle body 1. Figure 8 and Figure 9 The rotating connection base 202 provided on the shell 200 is located on two opposite inner walls of the shell 200 , and the rotating connection parts 16 at both ends of the handle body 1 are correspondingly rotatably connected to the two rotating connection bases 202 .

[0083] Linkage hole 17 is formed in rotating connection portion 16, and through hole 203 is formed in rotating connection base 202. Linkage hole 17 communicates with through hole 203, thereby connecting the linkage mechanism to linkage hole 17. When multiple switching devices are arranged side by side, the linkage holes 17 and through holes 203 of the multiple switching devices are correspondingly connected, thereby achieving synchronous linkage of the multiple switching devices through the linkage mechanism.

[0084] In the embodiment of the present application, the rotating connection portion 16 is configured as a circular boss, and the rotating connection seat 202 is configured as a circular groove. The size of the circular boss matches the size of the circular groove so that the circular boss can rotate in the circular groove.

[0085] The linkage hole 17 is set as a triangular hole, and the corresponding linkage rod is also set as a triangular rod. The cooperation of the triangular rod and the triangular hole can realize stable linkage of multiple handle bodies 1. Compared with the traditional cooperation of circular holes and circular rods, the triangle has higher stability, can avoid relative rotation, and improve transmission stability.

[0086] Of course, the linkage hole 17 and the linkage rod can also be set to other polygonal styles, which can also achieve stable transmission, and has a simple structure and is easy to produce and assemble.

[0087] In some examples, one linkage hole 17 is provided, and the linkage hole 17 simultaneously passes through the two rotating connecting parts 16. Alternatively, two linkage holes 17 are provided, and the two rotating connecting parts 16 are respectively provided with a linkage hole 17.

[0088] Based on the above-described embodiment of the present application, the through-hole arrangement of the linkage hole 17 facilitates rapid assembly, and only a single linkage rod is required to achieve multi-pole linkage, resulting in a simple structure and easy processing and assembly. Providing linkage holes 17 at both ends of the handle body 1 also achieves multi-stage linkage and avoids the situation in which a single linkage rod cannot simultaneously connect to multiple switch devices due to manufacturing errors, thereby improving assembly accuracy.

[0089] In the embodiment of the present application, the linkage hole 17 is set as one, and the linkage hole 17 passes through the handle body 1, and the openings at both ends correspond to the rotating connection parts 16 at both ends of the handle body 1, and then correspond to the through holes 203 opened on the rotating connection seat 202, so that the linkage rod passes through the through hole 203 and is connected to the linkage hole 17.

[0090] In another embodiment, two linkage holes 17 are provided. The two linkage holes 17 are set as blind holes, which correspond to the rotating connection parts 16 at both ends of the handle body 1 and the through holes 203 on the rotating connection seat 202 respectively.

[0091] Reference Figure 8 and Figure 9 The present application also provides a circuit breaker, including a housing 200 and the above-mentioned handle structure 100 , wherein the handle structure 100 is partially located inside the housing 200 .

[0092] Based on the above-mentioned embodiments of the present application, the circuit breaker having the above-mentioned handle structure 100 can effectively simplify the structure and assembly operation of the handle structure 100 to the circuit breaker, improve the assembly efficiency between the two, and improve the installation stability and usage stability of the handle structure 100 on the circuit breaker, further ensuring that the opening and closing of the circuit breaker can be carried out normally.

[0093] The handle structure 100 also includes an operating part 3, which is located on the side wall of the handle body 1. After the handle structure 100 is assembled on the shell 200, the handle body 1 is located inside the shell 200 and the operating part 3 is located outside the shell 200, so that the handle structure 100 can be manually rotated to realize manual opening and closing of the circuit breaker.

[0094] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A handle structure, characterized in that: Mounted on the housing, the handle structure includes: The handle body comprises a mounting portion, a first clamping portion and a second clamping portion; an elastic member connected to the mounting portion, wherein a first force arm of the elastic member is connected to the first clamping portion, and a second force arm of the elastic member is connected to the second clamping portion; The elastic member can be pre-installed to the handle body and form a pre-installed module, at least one of the first force arm and the second force arm extends to the outside of the handle body, and the extended portion can abut against the inner wall of the shell.

2. The handle structure according to claim 1, characterized in that: The handle body is provided with a receiving groove, the mounting portion is arranged in the receiving groove, the first clamping portion is arranged on the side wall of the receiving groove, and the second clamping portion is arranged on the side wall or bottom wall of the receiving groove.

3. The handle structure according to claim 2, characterized in that: A side wall of the accommodating groove is provided with a clearance groove, and at least one of the first force arm and the second force arm can move in the clearance groove.

4. The handle structure according to claim 3, characterized in that: The first clamping portion is a first clamping groove, which is provided on the side wall of the accommodating groove, is communicated with the giving way groove, and the first force arm is clamped in the first clamping groove; The second clamping portion is a second clamping groove, which is arranged on the side wall of the accommodating groove. The second clamping groove is connected to the give way groove, and the second force arm is clamped in the second clamping groove; or, the second clamping portion is a clamping through hole, which is arranged on the bottom wall of the accommodating groove, and the second force arm is clamped in the clamping through hole.

5. The handle structure according to claim 4, characterized in that: The second force arm is bent to form a limiting rod, and the limiting rod can pass through the locking through hole and abut against a side of the locking through hole away from the bottom wall of the accommodating groove.

6. The handle structure according to claim 4, characterized in that: The elastic member is a torsion spring, which is sleeved on the mounting portion. The first force arm is connected to the first clamping groove, and the second force arm is connected to the second clamping groove or the clamping through hole.

7. The handle structure according to claim 6, characterized in that: The first force arm of the torsion spring extends from the first clamping groove to the outside of the handle body.

8. The handle structure according to any one of claims 1 to 7, characterized in that: Both ends of the handle body are provided with a rotating connection portion, and the corresponding position of the inner wall of the shell is provided with a rotating connection seat; A linkage hole is provided on the rotating connection portion, and the linkage hole can be connected to a linkage rod, and the linkage rod can simultaneously connect at least two of the handle bodies.

9. The handle structure according to claim 8, characterized in that: There is one linkage hole, and the linkage hole passes through the two rotating connecting parts at the same time; Alternatively, two linkage holes are provided, and the two rotating connecting parts are respectively provided with the linkage holes.

10. A circuit breaker, characterized in that: It comprises a shell and a handle structure according to any one of claims 1 to 9, wherein the handle structure is partially located inside the shell.

Images