Auxiliary combined set for maintenance of moving contact of movable circuit breaker

Abstract

The invention discloses a movable circuit breaker moving contact maintenance auxiliary combination set, and relates to the technical field of electric power system maintenance and maintenance, and the combination set comprises a handle, a support assembly arranged on the handle, a lead screw nut arranged on the support assembly, and an execution assembly arranged on the lead screw nut. The limiting block is arranged on the execution assembly; wherein the handle is used as a force application part of an operator and is designed in an ergonomic manner; the supporting assembly is used for supporting and connecting the whole device; the lead screw nut serves as a transmission structure and can convert the rotation motion of the handle into the linear motion of the lead screw. According to the combined set, the moving contact and the spring of the removable circuit breaker can be quickly disassembled and assembled, the labor-saving structural design reduces the workload of maintainers, eliminates the defects of a traditional disassembling and assembling tool, avoids damage to the moving contact and the spring, provides powerful guarantee for safe operation of electrical equipment, shortens the maintenance time, and improves the maintenance efficiency. And the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of power system maintenance and overhaul, and in particular to a movable contact overhaul auxiliary combination kit for a removable circuit breaker. Background Art

[0002] In the power system, center-mounted switchgear is widely used due to its stable and reliable performance, accounting for a high proportion. However, during long-term operation, the moving contacts of the circuit breaker in the switchgear are prone to wear, overheating of the contact finger spring, and even melting due to frequent operation. If these problems are not handled in time, they may cause serious safety hazards. In order to ensure the safe and stable operation of the power system, it is very important to regularly inspect and replace the moving contacts and contact finger springs of the circuit breaker as necessary.

[0003] However, in actual operation, there is often a lack of special tool support for the replacement of contacts or springs. Usually, workers use general tools such as screwdrivers and pliers to perform disassembly and assembly operations. This method is not only inefficient, but also easily causes unnecessary damage to the moving contact and contact finger spring, thereby affecting the normal working performance of the circuit breaker, increasing maintenance costs and potential risks. Summary of the invention

[0004] In view of the above-mentioned problems that the existing replacement of contacts or springs often relies on general tools such as screwdrivers and pliers, which is inefficient and easy to damage components, increasing maintenance costs and risks, a removable circuit breaker moving contact maintenance auxiliary combination kit is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solution: comprising a handle, a support assembly arranged on the handle, a screw nut arranged on the support assembly, an actuator arranged on the screw nut, and a limit block arranged on the actuator;

[0006] Among them, the handle is used as the force-applying component for the operator and is ergonomically designed; the support assembly is used to support and connect the entire device; the screw nut is used as a transmission structure, which can convert the rotational motion of the handle into the linear motion of the screw; the actuator is used to complete the expansion and resetting operations of the stylus; the limit block is used to limit the actuator to prevent it from falling out during the expansion process.

[0007] As a preferred solution of the movable contact maintenance auxiliary combination kit of the removable circuit breaker described in the present invention, the handle is a horizontal grip structure, and its surface is treated with an anti-slip texture. The handle is overall in the shape of a long strip, with a thickened middle part and gradually tapering at both ends.

[0008] As a preferred solution of the movable contact maintenance auxiliary assembly set of the removable circuit breaker described in the present invention, the support assembly includes an extension rod and a fixing seat;

[0009] The extending rod is located between the handle and the fixing seat, the extending rod and the handle are threadedly connected, the screw nut is installed inside the extending rod, and the fixing seat is located between the extending rod and the actuator.

[0010] As a preferred solution of the movable contact maintenance auxiliary combination kit for a removable circuit breaker described in the present invention, the extension rod is made of aluminum alloy and is in the shape of a circular protective sleeve as a whole.

[0011] As a preferred solution of the movable contact maintenance auxiliary assembly kit of the removable circuit breaker described in the present invention, the actuator assembly includes an expansion head and a contact finger linkage piece;

[0012] Wherein, the expansion head is located at the upper end of the fixing seat, and the contact finger linkage piece is located above the expansion head.

[0013] As a preferred solution of the movable contact maintenance auxiliary combination kit of the removable circuit breaker described in the present invention, the fixing seat is a key component connecting the extension rod and the expansion head, and is mainly used to fix the expansion module of the device.

[0014] As a preferred solution of the movable contact maintenance auxiliary combination kit of the present invention, the expansion head is generally in the shape of a capped cylinder, and its upper end is in the shape of a truncated cone, and expansion is achieved by ejecting the front end.

[0015] As a preferred solution of the movable contact maintenance auxiliary combination kit of the removable circuit breaker described in the present invention, the contact finger linkage piece is composed of multiple contact finger pieces to form a cylinder, a circular groove is provided at the front end thereof, and a circular spring is placed in the circular groove.

[0016] As a preferred solution of the movable contact maintenance auxiliary assembly kit for a removable circuit breaker described in the present invention, a guide groove and a fixing hole are provided inside the fixing seat; the fixing hole is used to fix the extension rod, and the guide groove is used to fix the expansion head.

[0017] As a preferred solution of the movable contact maintenance auxiliary combination kit of the removable circuit breaker described in the present invention, the limit block is made of stainless steel and has a "7"-type structure as a whole.

[0018] The beneficial effects of the present invention are as follows: the combined kit can quickly disassemble and assemble the moving contact and spring of the removable circuit breaker, and the design of its labor-saving structure reduces the workload of maintenance personnel, eliminates the disadvantages of traditional disassembly and assembly tools, avoids damage to the moving contact and spring, provides a strong guarantee for the safe operation of electrical equipment, shortens maintenance time, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative labor.

[0020] Figure 1 The figure is a schematic diagram of the overall structure of the movable contact maintenance auxiliary assembly set of the removable circuit breaker in the present invention.

[0021] Figure 2 It is a partial cross-sectional view of the movable contact maintenance auxiliary assembly set of the removable circuit breaker in the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of the touch finger sheet in the present invention.

[0023] Figure 4 It is a partial cross-sectional view of the fixing seat in the present invention.

[0024] Figure numerals: 100, handle; 200, support assembly; 300, screw nut; 400, actuator assembly; 500, limit block; 201, extension rod; 202, fixing seat; 401, expansion head; 402, contact finger linkage piece; m, guide groove; n, fixing hole; 402a, circular groove; 402b, circular spring; k, contact finger piece. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Example 1, reference Figure 1 to Figure 4 , which is the first embodiment of the present invention, provides a movable circuit breaker moving contact maintenance auxiliary combination kit, including a handle 100, a support assembly 200 arranged on the handle 100, a screw nut 300 arranged on the support assembly 200, an actuator 400 arranged on the screw nut 300, and a limit block 500 arranged on the actuator 400; wherein the handle 100 is used as an operator force application component and adopts an ergonomic design; the support assembly 200 is used to support and connect the entire device; the screw nut 300 is used as a transmission structure, which can convert the rotational motion of the handle 100 into the linear motion of the screw; the actuator 400 is used to complete the expansion and resetting operations of the contact fingers; the limit block 500 is used to limit the actuator 400 to prevent it from falling out during the expansion process.

[0030] The handle 100 is a horizontal grip structure, and its surface is treated with an anti-slip texture. The handle 100 is in the shape of a long strip as a whole, with a thickened middle portion and gradually tapering at both ends.

[0031] Among them, the handle 100 is made of stainless steel with high strength and corrosion resistance, ensuring that it is not easily damaged during long-term use. The handle 100 adopts ergonomic design and presents a horizontal grip structure. Its surface is treated with protective texture to provide a good grip. The handle 100 is overall in the shape of a long strip, with a slightly thickened middle part and gradually tapering at both ends, bearing the natural grip curve of the human palm.

[0032] It should be noted that the handle 100 is a component for the operator to apply force. The design of the handle 100 enables the operator to apply force easily and stably to ensure the smooth operation of the device. The ergonomic design and anti-slip texture treatment of the handle 100 ensure that the operator will not feel tired even after long-term operation, thereby improving work efficiency. The stainless steel handle 100 has high rigidity and strength, ensuring that it will not be deformed or damaged under high-intensity operation, thereby extending the service life.

[0033] In summary, the design of the handle 100 not only takes into account the convenience and comfort of operation, but also takes into account safety and durability, providing important guarantees for the efficient and safe operation of the entire device.

[0034] The support assembly 200 includes an extension rod 201 and a fixing seat 202; wherein, the extension rod 201 is located between the handle 100 and the fixing seat 202, the extension rod 201 and the handle 100 are threadedly connected, the screw nut 300 is installed inside the extension rod 201, and the fixing seat 202 is located between the extension rod 201 and the actuator 400; the extension rod 201 is made of aluminum alloy and is in the shape of a circular protective cover; the fixing seat 202 is a key component connecting the extension rod 201 and the expansion head 401, and is mainly used to fix the expansion module of the device; a guide groove m and a fixing hole n are provided inside the fixing seat 202; the fixing hole n is used to fix the extension rod 201, and the guide groove m is used to fix the expansion head 401.

[0035] Among them, the extension rod 201 is made of aluminum alloy, which is light, high-strength and has good corrosion resistance. A screw thread mechanism is arranged inside it, which is used to convert the rotational motion of the handle 100 into the linear motion of the screw. The screw thread mechanism usually includes a screw, a nut and a guide groove m to ensure the accuracy and stability of the movement. The extension rod 201 is a circular protective cover as a whole, with a smooth surface and precise processing technology inside to ensure the smooth operation of the screw nut 300 mechanism. Connection interfaces are designed at both ends, which are respectively connected to the handle 100 and the fixing seat 202. The extension rod 201 is cylindrical as a whole, with a moderate diameter and a length designed according to actual use requirements. Connection interfaces are designed at both ends, one end is connected to the handle 100, and the other end is connected to the fixing seat 202. The connection interface can be in the form of thread, pin or snap to ensure the firmness and reliability of the connection.

[0036] It should be noted that the screw nut 300 mechanism inside the extension rod 201 accurately converts the rotational motion of the handle 100 into linear motion, ensuring that the movement of the expansion head 401 is accurate and correct, thereby improving the accuracy of the operation. The guide groove design inside the extension rod 201 ensures that the screw remains straight during the movement, preventing deviation or jamming, thereby further improving the accuracy of the operation. At the same time, the extension rod 201 made of aluminum alloy has high rigidity and strength, ensuring that it will not be deformed or damaged under high-intensity operation, thereby improving the stability of the entire device. The connection interface design at both ends ensures that the connection with the handle 100 and the fixing seat 202 is firm and reliable, thereby avoiding loosening or falling off during operation, thereby enhancing the overall stability. The lightweight characteristics of the aluminum alloy material make the entire device moderate in weight, and it is not easy for operators to get hurt during long-term operation. Feel tired, improve work efficiency, its internal precision machining and smooth surface design ensure the smooth operation of the screw nut 300 mechanism, reduce operating resistance, and make operation easier; and the aluminum alloy material has good corrosion resistance, and can be used for a long time in harsh working environments, reducing maintenance and replacement frequency, and extending the service life of the device. The circular protective cover design of the extension rod 201 can effectively prevent the entry of external dust, impurities, etc., protect the internal screw nut 300 mechanism, reduce wear and failure, and extend the service life. The connection interface design at both ends allows the extension rod 201 to be quickly disassembled and assembled, which is convenient for inspection and replacement of internal mechanisms, and improves the convenience of maintenance. The transparent or translucent design of the circular protective cover can facilitate the operator to check the operating status of the internal mechanism and discover and solve problems in time.

[0037] In summary, the extension rod 201 is a key component in the device. Through its lightweight, high-strength aluminum alloy material and the internal screw nut 300 mechanism, it achieves precise force transmission and stable guidance. Its design not only improves the accuracy and stability of the operation, but also reduces the burden on the operator, extends the service life of the device, and ensures that the entire device is efficient, safe and reliable during use.

[0038] In this embodiment, the fixing seat 202 is made of stainless steel with high strength, corrosion resistance and good mechanical properties. A guide groove m and a fixing hole n are provided inside the fixing seat 202 for fixing the extension rod 201 and the expansion head 401 to ensure the accuracy and stability of the movement. A mounting hole and a fixing device are provided outside the fixing seat 202 to facilitate the installation of the fixing seat 202 on the work platform. The surface of the fixing seat 202 is usually polished to ensure smoothness and no burrs. One end of the fixing seat 202 is connected to the extension rod 201, and the other end is connected to the expansion head 401. The connection is designed with corresponding interfaces and fixing devices to ensure that the connection is firm and reliable.

[0039] Specifically, the guide groove m design inside the fixed seat 202 ensures that the expansion head 401 maintains a straight line during movement, prevents deviation or jamming, and improves the accuracy of the operation. The limit device on the fixed seat 202 can prevent the expansion head 401 from over-expanding, ensure that the operation is carried out within a safe range, and further improve the accuracy of the operation. The stainless steel fixed seat 202 has high rigidity and strength, ensuring that it will not be deformed or damaged under high-intensity operation, thereby improving the stability of the entire device. The connection design of the fixed seat 202, the extension rod 201 and the expansion head 401 ensures a firm and reliable connection, avoids loosening or falling off during operation, and enhances the overall stability. The limiting device on the fixed seat 202 can prevent the expansion head 401 from over-expanding, avoiding equipment damage or safety accidents caused by improper operation. The mounting holes and fixing devices on the fixed seat 202 enable the entire device to be firmly fixed on the work platform, ensuring stability and safety during operation and reducing the occurrence of accidents. At the same time, the stainless steel material has good corrosion resistance and can be used for a long time in harsh working environments, reducing maintenance and replacement frequency, and extending the service life of the device. The structural design of the fixed seat 202 can protect the internal transmission mechanism, prevent the entry of external dust, impurities, etc., reduce wear and failure, and extend the service life.

[0040] Among them, the mounting holes and fixing device design on the fixing base 202 allow the entire device to be easily installed on the work platform, improving the convenience of installation. The structural design of the fixing base 202 makes the inspection and maintenance of the internal mechanism more convenient, and can be quickly disassembled and reinstalled, improving the efficiency of maintenance.

[0041] In summary, the fixing seat 202 is a key component in the device. Through its stainless steel material and the internal guide groove m and limit device design, accurate force transmission and stable guidance are achieved. Its design not only improves the accuracy and stability of operation, but also enhances safety, prolongs the service life of the device, and ensures that the entire device is efficient, safe and reliable during use.

[0042] Example 2, reference Figure 2 and Figure 3 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment, and the difference is that: the actuator 400 includes an expansion head 401 and a contact finger linkage piece 402; wherein, the expansion head 401 is located at the upper end of the fixed seat 202, and the contact finger linkage piece is located above the expansion head 401; the expansion head 401 is generally in the shape of a capped cylinder, and its upper end is in the shape of a truncated cone, and expansion is achieved by ejecting the front end; the contact finger linkage piece 402 is composed of a plurality of contact finger pieces k to form a cylinder, and a circular groove 402a is provided at its front end, and a circular spring 402b is placed in the circular groove 402a.

[0043] Among them, the expansion head 401 is made of stainless steel with high strength, corrosion resistance and good mechanical properties. The interior is designed with a connecting hole that matches the screw nut 300 mechanism to ensure precise connection with the screw part of the extension rod 201; the front end is designed as a frustum with an ejection part on the frustum for pushing the contact finger piece k of the contact finger linkage piece 402 to open; the expansion head 401 is generally in the shape of a capped cylinder, with a frustum at the front end. The diameter of the frustum is slightly smaller than the cylindrical part, forming a step-like structure, and the front end of the frustum is designed with an ejection part, which can eject the contact finger piece k of the contact finger linkage piece 402 to achieve expansion of the contact finger.

[0044] In this embodiment, the front end cone design and the ejection part of the expansion head 401 ensure that the expansion action of the contact finger piece k is accurate and correct, avoiding contact finger damage caused by uneven expansion; the cylindrical design and the front end cone structure ensure that the expansion head 401 maintains a straight line during movement, preventing deviation or jamming, and improving the accuracy of operation; the design of the expansion head 401 ensures that the contact finger piece k will not be over-opened during the expansion process, avoiding contact finger damage or equipment damage caused by excessive expansion; when the expansion head 401 retracts, the contact finger linkage piece 402 automatically resets under the action of the internal spring, ensuring that the contact finger returns to the initial position, avoiding contact finger deformation caused by residual stress; the precise design of the expansion head 401 makes the expansion and reset process of the contact finger fast and efficient, reducing the time for disassembling and assembling the contact finger, Improved work efficiency; through precise expansion and resetting actions, the damage to the contact fingers and springs caused by traditional tools is avoided, and the frequency of maintenance and replacement is reduced; the expansion head 401 made of stainless steel has good corrosion resistance and can be used for a long time in harsh working environments, reducing the frequency of maintenance and replacement and extending the service life of the device; the precise guide design and the buffering effect of the internal spring reduce the friction between the expansion head 401 and the contact finger piece k, extending the service life of the contact fingers and springs; the front end cone and the ejection part of the expansion head 401 are intuitively designed, and the operator can clearly see the expansion and resetting process of the contact fingers, which improves the convenience of operation; the lightweight characteristics of the stainless steel material ensure that the expansion head 401 does not add additional burden during operation, making the operation easier.

[0045] In summary, the expansion head 401 is a key component of the device. Through its stainless steel material and front end round cone design, it realizes the precise expansion and resetting of the stylus. Its design not only improves the accuracy and safety of the operation, but also improves the work efficiency, prolongs the service life of the device, and ensures that the entire device is efficient, safe and reliable during use.

[0046] In this embodiment, the contact finger linkage piece 402 is made of stainless steel with high strength, corrosion resistance and good mechanical properties. It is composed of multiple contact finger pieces k to form a cylinder. A circular groove 402a is designed at the front end, and a circular spring 402b is placed in the groove. Each contact finger piece k is arc-shaped, and the edge is designed with appropriate chamfers to reduce friction and damage. The contact finger linkage piece 402 is cylindrical as a whole, with a moderate diameter and a length designed according to actual usage requirements. A circular groove 402a is designed at the front end, and a circular spring 402b is placed in the groove. The contact finger piece k is arc-shaped, and the edge is designed with chamfers to ensure a smooth transition during expansion and resetting.

[0047] It should be noted that the design of multiple contact finger pieces k of the contact finger linkage piece 402 ensures that the contact finger is evenly stressed during the expansion process, avoiding contact finger damage caused by uneven stress. The internal circular spring 402b ensures that the contact finger piece k has a smooth transition during the resetting process, avoiding contact finger piece k from being stuck or deformed. The structural design of the contact finger linkage piece 402 ensures that the contact finger piece k will not be over-opened during the expansion process, avoiding contact finger damage or equipment damage caused by excessive expansion. When the expansion head 401 retracts, the contact finger piece k automatically resets under the action of the spring, ensuring that the contact finger returns to its initial position, avoiding contact finger deformation caused by residual stress. The precise design of the contact finger linkage piece 402 makes the expansion and resetting process of the contact finger fast and efficient, reduces the time for disassembling and assembling the contact finger, and improves work efficiency. The contact finger linkage piece 402 is made of stainless steel and has good corrosion resistance. It can be used for a long time in harsh working environments, reduce the frequency of maintenance and replacement, and extend the service life of the device. The buffering effect of the internal spring and the smooth design of the contact finger piece k reduce the friction between the contact finger piece k and the expansion head 401, and extend the service life of the contact finger and spring. The structural design of the contact finger linkage piece 402 is intuitive, and the operator can clearly see the expansion and resetting process of the contact finger, which improves the convenience of operation. The lightweight characteristics of the stainless steel material ensure that the contact finger linkage piece 402 will not add additional burden during operation, making the operation easier.

[0048] In summary, the finger linkage piece 402 is a key component in the device. Through its stainless steel material and the internal circular spring 402b design, the finger can be accurately expanded and reset. Its design not only improves the accuracy and safety of the operation, but also improves the work efficiency, prolongs the service life of the device, and ensures that the entire device is efficient, safe and reliable during use.

[0049] The rest of the structure is the same as that of Example 1.

[0050] Example 3, reference Figure 1 to Figure 4, which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the limit block 500 is made of stainless steel and has a "7"-shaped structure as a whole.

[0051] It should be noted that the limit block 500 is made of stainless steel with high strength, corrosion resistance and good mechanical properties. The limit block 500 is designed with mounting holes and fixing devices matching the fixed seat 202 and the expansion head 401 to ensure its stable installation on the fixed seat 202; the limit block 500 is an overall Type 7 structure, with one end fixed on the fixed seat 202 and the other end extending into the movement path of the expansion head 401 to play a limiting role. It is designed according to actual usage requirements and has a moderate size to ensure sufficient strength and stability; one end is designed with a mounting hole and a fixing device for connection with the fixed seat 202 to ensure the stable installation of the limit block 500, and the other end extends into the movement path of the expansion head 401, and is flat or has a guide groove m to ensure that the expansion head 401 does not exceed a predetermined range during movement.

[0052] In this embodiment, the type 7 structural design of the limit block 500 ensures that the expansion head 401 does not exceed the predetermined range during the movement, thereby avoiding damage to the stylus fingers due to excessive expansion. The guide design of the limit block 500 ensures that the expansion head 401 maintains a straight line during the movement, thereby preventing deviation or jamming, thereby improving the accuracy of the operation. The design of the limit block 500 ensures that the expansion head 401 does not fall off during the movement, thereby avoiding equipment damage or safety accidents due to falling off. By limiting the movement range of the expansion head 401, the stylus finger linkage piece 402 and the expansion head 401 are protected from damage due to excessive stretching or impact, thereby improving the safety of the entire device. The precise design of the limit block 500 makes the expansion head 401 The expansion head 401 can be quickly positioned to the predetermined position in each operation, reducing adjustment time and improving work efficiency. The precise limit and guide design avoids damage to the contact fingers and springs caused by traditional tools, and reduces the frequency of maintenance and replacement. The guide design of the limit block 500 reduces the friction between the expansion head 401 and the fixed seat 202, and extends the service life of the expansion head 401 and the fixed seat 202. The type 7 structural design of the position block is intuitive, and the operator can clearly see the position and function of the limit block 500, which improves the convenience of operation. The fixing device design of the limit block 500 makes it easy and quick to install and disassemble on the fixed seat 202, and is convenient for inspection and maintenance.

[0053] In summary, the limit block 500 is a key component in the device. Through its stainless steel material and type 7 structural design, it realizes accurate limit and guidance of the movement range of the expansion head 401. Its design not only improves the accuracy and safety of operation, but also improves work efficiency, prolongs the service life of the device, and ensures that the entire device is efficient, safe and reliable during use.

[0054] The rest of the structure is the same as that of Example 2.

[0055] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0056] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, without undue experimentation, the development effort will be a routine task of design, fabrication, and production.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A movable contact maintenance auxiliary combination kit for a removable circuit breaker, characterized in that: It comprises a handle (100), a support assembly (200) arranged on the handle (100), a screw nut (300) arranged on the support assembly (200), an actuator assembly (400) arranged on the screw nut (300), and a limit block (500) arranged on the actuator assembly (400); The handle (100) is used as a force-applying component for an operator and is ergonomically designed; the support assembly (200) is used to support and connect the entire device; the screw nut (300) is used as a transmission structure and can convert the rotary motion of the handle (100) into the linear motion of the screw; the actuator (400) is used to complete the expansion and resetting operations of the stylus; and the limit block (500) is used to limit the actuator (400) to prevent it from falling out during the expansion process.

2. A movable contact maintenance auxiliary assembly kit for a removable circuit breaker according to claim 1, characterized in that: The handle (100) is in a horizontal grip structure, and its surface is treated with an anti-slip texture. The handle (100) is in an elongated strip shape as a whole, with a thickened middle portion and gradually tapered ends.

3. The movable contact maintenance auxiliary assembly kit for a removable circuit breaker according to claim 1, characterized in that: The support assembly (200) comprises a protruding rod (201) and a fixing seat (202); The extending rod (201) is located between the handle (100) and the fixing seat (202), the extending rod (201) and the handle (100) are threadedly connected, the screw nut (300) is installed inside the extending rod (201), and the fixing seat (202) is located between the extending rod (201) and the actuator (400).

4. A movable contact maintenance auxiliary assembly kit for a removable circuit breaker as claimed in claim 3, characterized in that: The extension rod (201) is made of aluminum alloy and is in the shape of a circular protective sleeve.

5. A movable contact maintenance auxiliary assembly kit for a removable circuit breaker as claimed in claim 4, characterized in that: The actuator component (400) comprises an expansion head (401) and a contact finger linkage piece (402); The expansion head (401) is located at the upper end of the fixing seat (202), and the contact finger linkage piece (402) is located above the expansion head (401).

6. A movable contact maintenance auxiliary assembly kit for a removable circuit breaker as claimed in claim 5, characterized in that: The fixing seat (202) is a key component for connecting the extension rod (201) and the expansion head (401), and is mainly used to fix the device expansion module.

7. A movable contact maintenance auxiliary assembly kit for a removable circuit breaker according to claim 6, characterized in that: The expansion head (401) is in the shape of a capped cylinder as a whole, and its upper end is in the shape of a truncated cone, and expansion is achieved by ejecting the front end.

8. The movable contact maintenance auxiliary assembly kit for a removable circuit breaker according to claim 7, characterized in that: The contact finger linkage piece (402) is composed of a plurality of contact finger pieces (k) to form a cylinder, a front end of which is provided with a circular groove, and a circular spring (402b) is placed in the circular groove (402a).

9. The movable contact maintenance auxiliary assembly kit for a removable circuit breaker according to claim 3, characterized in that: The fixing seat (202) is provided with a guide groove (m) and a fixing hole (n) inside; the fixing hole (n) is used to fix the extension rod (201), and the guide groove (m) is used to fix the expansion head (401).

10. The movable contact maintenance auxiliary assembly kit for a removable circuit breaker according to claim 3, characterized in that: The limit block (500) is made of stainless steel and has a "7"-shaped structure as a whole.

Images