Circuit breaker protection device

Abstract

The invention discloses a circuit breaker protection device which comprises a circuit breaker body, a padlock accessory or an electric operation accessory is arranged on a surface cover of the circuit breaker body, the padlock accessory and the electric operation accessory are detachably installed on the surface cover, and protection assemblies are arranged on the padlock accessory or the electric operation accessory. Compared with the prior art, the device has the advantages that the protection grade can be effectively improved through the arranged protection assembly, and meanwhile, the padlock accessory and the electric operation accessory are provided with the protection grades, so that the adverse effect of external sand and dust on the operation and the function of the circuit breaker is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to a circuit breaker protection device. Background Art

[0002] The rapid development of new energy, photovoltaic and energy storage industries has also led to the favorable development of low-voltage distribution systems. Due to the particularity of the use environment of the above-mentioned industries, low-voltage distribution systems are required to be used in a wider and more severe environment, which puts higher requirements on low-voltage components, especially in harsh environmental areas. Some distribution cabinets have a high level of protection during operation, but they are inevitably exposed to the outdoors during transportation, installation and commissioning, especially in dusty environments, which will have an adverse effect on the operation of the circuit breaker installed inside and the functions of the accessories. Since the circuit breaker can be adapted to a variety of external accessories, in addition to improving the protection level of the circuit breaker itself, the protection capabilities of the accessories or after the accessories are installed must also be considered. For large-capacity circuit breakers, operability must also be considered, and the operating force must be small or an electric operating mechanism must be selected. The improvement of protection capabilities can increase the sealing and other treatment measures for the fixed position of the circuit breaker joints, but it is difficult to handle the position of active parts such as the operating handle. Considering the operation and indication functions of the circuit breaker, a certain matching margin needs to be retained at the handle position, and considering the protection performance, the active gap between the handle and the shell needs to be reduced. Both are difficult to meet the requirements at the same time. After installing electrical accessories, there is also the problem of insufficient protection capabilities, which also needs to be solved.

[0003] Therefore, the present invention needs to provide a device that meets the requirements of the protection capability of the circuit breaker under manual operation and electric operation, and can reduce the adverse effects of external dust on the operation and function of the circuit breaker. The use of an operating lever for opening and closing operations improves the operability of large-capacity circuit breakers and reduces the burden of manpower. The protection module is easy to install and has the function of a padlock accessory, achieving multiple uses. The transparent cover and sealing gasket shell that can be opened and closed by the electric operating mechanism improve the protection capability of the electric operating accessories, facilitate product maintenance, and give users more choices. Summary of the invention

[0004] The object of the present invention is to provide a circuit breaker protection device to solve the above-mentioned problems existing in the prior art.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A circuit breaker protection device comprises: a circuit breaker body, a surface cover of the circuit breaker body is provided with a padlock accessory or an electric operation accessory, the padlock accessory and the electric operation accessory are detachably mounted on the surface cover, and the padlock accessory or the electric operation accessory is provided with a protection component.

[0006] Furthermore, the protection assembly includes a protection cover, which is in the shape of a long strip and covers the handle on the circuit breaker body. The lower end of the protection cover is movably fixed to the face cover by a connecting piece, and the upper end of the protection cover is fixed to the face cover by opening or fastening a padlock. A sealing ring is also provided on the side of the protection cover close to the face cover.

[0007] Furthermore, the connecting member includes a fixing platform, a fixing column is provided on a side of the fixing platform close to the surface cover, a fixing hole is provided at a position of the surface cover corresponding to the fixing column, and the fixing column is installed in the fixing hole and fixed by a fixing screw.

[0008] Furthermore, mounting grooves are provided at both ends of the fixed platform, and limit platforms are provided at the mounting grooves far away from each other. A through hole is provided at one end of the protective cover close to the fixed platform. After the connecting shaft passes through the through hole, both ends are fixed in the mounting grooves, so that the protective cover rotates along the circumferential outer surface of the connecting shaft.

[0009] Furthermore, the padlock comprises a locking ring, one end of the locking ring close to the circuit breaker body is fixed to the circuit breaker body, a locking ring hole is provided at a position of the protective cover corresponding to the locking ring, and the locking ring is fixed by a lock after passing through the locking ring hole.

[0010] Furthermore, the locking ring includes a connecting end and an extension portion, one end of the extension portion is fixed on the connecting end, the other end of the extension portion extends toward an end away from the connecting end, a locking hole is provided on the extension portion, and an end of the connecting end close to the circuit breaker body is connected and fixed to the circuit breaker body.

[0011] Furthermore, the protective assembly includes a shell and a cover plate, the shell includes a frame and a cover body, the frame and the cover body form a rectangular parallelepiped with a accommodating cavity, the shell is installed on the face cover of the circuit breaker body through a base, the electrical accessories are installed in the accommodating cavity, the cover plate can be opened or closed and installed on the outer side of the cover body, the cover plate is a rectangular thin plate, mounting holes are provided on both sides of the lower end of the frame, a connecting shaft is provided at the lower end of the cover plate, both ends of the connecting shaft are installed in the mounting holes, a plurality of bosses are provided at the upper end of the frame, a snap hole is provided at the position corresponding to the boss at the upper end of the protective cover, and the boss cooperates with the snap hole.

[0012] Furthermore, a locking rod is provided on the upper part of the cover body, a padlock hole is provided on the locking rod, a locking rod hole is provided at a position of the cover plate corresponding to the padlock hole, a receiving gasket is provided on the locking rod, and a partition area is provided at the position of the receiving gasket on a side of the cover plate close to the cover body.

[0013] Furthermore, the protective cover body and the cover plate are both transparent protective covers.

[0014] Furthermore, the sealing ring and the accommodating gasket are made of rubber.

[0015] The beneficial effects of the present invention are: Since the present invention is provided with a protection component, the protection level can be effectively improved by the protection component, and the protection level is set for the padlock accessory and the electric operation accessory at the same time, thereby reducing the adverse effects of external dust on the operation and function of the circuit breaker, so that users have more choices. In addition, the protection component is modularized, which is easy to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an assembly diagram of the circuit breaker and the padlock accessory of the present invention; Figure 2 is an exploded view of the protective component of the padlock accessory of the present invention; Figure 3 This is a diagram showing the protective cover of the present invention in an open state; Figure 4 It is a state diagram of the operating lever and the opening and closing positions of the present invention; Figure 5 It is a structural schematic diagram of the operating lever of the present invention; Figure 6 It is a structural schematic diagram of the fixing platform of the present invention; Figure 7 It is a structural schematic diagram of the fixing platform of the present invention; Figure 8 It is a structural diagram of the face cover of the present invention; Fig. 9 It is an assembly diagram of the circuit breaker and the electric operating accessories of the present invention; Fig.10 It is a structural diagram of the protection component of the electric operation accessory of the present invention; Fig.11 is a structural diagram of the cover plate of the present invention; Fig.12 It is a structural diagram of the cover plate of the present invention; Fig.13 It is an assembly diagram of the circuit breaker and the electric operating accessories of the present invention; Fig.14 This is a diagram showing the cover of the present invention in an open state; Fig.15 It is a structural diagram of the accommodating gasket of the present invention.

[0017] Reference numerals: Circuit breaker body 1, face cover 2, protective cover 3, handle 4, sealing ring 5, operating rod 6, connecting piece 7, padlock 8, housing 9, cover plate 10, accommodating gasket 11, base 12; Protective cover body 31, side plate 32, upper extension part 33, lower extension part 34; A fixing platform 71, a fixing column 72, a mounting groove 73, a limiting platform 74, a connecting shaft 75, and a hole 76; Frame 91 , cover 92 , mounting hole 93 , boss 911 , locking rod 921 , padlock hole 922 , buckle hole 101 , flange 102 , locking rod hole 103 . DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation methods described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] Among them, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "circumferential", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention or simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0022] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0023] like Figures 1 to 15 As shown, a circuit breaker protection device comprises: a circuit breaker body 1, a padlock accessory or an electric operation accessory is provided on a surface cover 2 of the circuit breaker body 1, the padlock accessory and the electric operation accessory are detachably mounted on the surface cover, and the padlock accessory or the electric operation accessory is provided with a protection component.

[0024] It can be seen from the above method that due to the setting of the protection component, the protection level can be effectively improved by setting the protection component, and at the same time, the protection level is set for the padlock accessories and the electric operation accessories, thereby reducing the adverse effects of external sand and dust on the operation and function of the circuit breaker, so that users have more choices. In addition, the protection component is modularized for easy installation and disassembly.

[0025] Specifically, the protective assembly includes a protective cover 3, which includes: a protective cover body 31, the protective cover body 31 having a curved accommodating cavity, side panels 32 are provided on both sides of the protective cover body 31, and the side panels 32 are connected to both sides of the protective cover body 31 by an integral molding method, and an upper extension portion 33 is provided at the upper end of the protective cover body 31, and a lower extension portion 34 is provided at the lower end of the protective cover body 31, and the upper extension portion 33 and the lower extension portion 34 are made of the protective cover body by an integral molding method. In this embodiment, the protective cover body 31 It is made of transparent plastic. When installing, the protective cover 3 is covered on the handle 4 on the circuit breaker body 1, so that the handle 4 can be sealed in the open, tripped and open positions. The lower end of the protective cover 3 is movably fixed to the cover 2 through a connecting piece 7, and the upper end of the protective cover 3 is fixed to the cover 2 by a padlock 8 in an open or closed manner. A sealing ring 5 is also provided on the side of the protective cover 3 close to the cover 2. The sealing ring 5 can effectively prevent sand and dust from entering the circuit breaker, thereby reducing the adverse effects of external sand and dust on the operation and function of the circuit breaker, and improving the protection level; When the circuit breaker needs to be operated, the protective cover 3 is opened and the manual opening and closing operation is performed through the operating rod 6. The operating rod 6 is a structure with a center hole, which cooperates with the protrusion of the handle 4. When the operation is not needed, the operating rod can be removed.

[0026] In addition, it is worth noting that the connecting member 7 includes a fixing platform 71, and a fixing column 72 is provided on a side of the fixing platform 71 close to the face cover 2, and the fixing column 71 is located in the middle of the fixing platform 71. The face cover 2 is also provided with a fixing hole 21 at a position corresponding to the fixing column 72, and the fixing column 72 is installed in the fixing hole 21 and fixed by a fixing screw. Since the fixing column 72 on the fixing platform 71 is matched with the fixing hole 21 on the face cover 2, a hole 76 is further provided on the other side of the fixing platform 71, and the fixing screw fixes it to the face cover through the hole, thereby ensuring that the fixing platform and the face cover are tightly connected to each other.

[0027] In addition, it should be noted that in order to install the protective cover body 31 on the fixed platform 71, mounting grooves 73 are provided at both ends of the fixed platform 71, and limit platforms 74 are provided at the mounting grooves 73 far away from each other. A through hole 35 is provided at the end of the protective cover close to the fixed platform 71. After the connecting shaft 75 passes through the through hole, both ends are fixed in the mounting grooves 73, so that the protective cover 3 rotates along the circumferential outer surface of the connecting shaft 75. In order to ensure that the protective cover body 31 will not fall off, limit platforms 74 are provided at the mounting grooves 73 far away from each other, which can meet the requirement of 180° opening and closing of the protective cover body 31 along the connecting shaft 75.

[0028] Specifically, the padlock 8 includes a locking ring. In this embodiment, one end of the locking ring close to the circuit breaker body 1 is fixed to the circuit breaker body 1. The locking ring is fixed to the circuit breaker body by snapping. The protective cover has a locking ring hole at a position corresponding to the locking ring. The locking ring is fixed by a lock after passing through the locking ring hole. Since the protective cover is locked, irrelevant personnel are prevented from operating, thereby ensuring safe use.

[0029] In addition, it should be noted that the locking ring includes a connecting end 81 and an extension portion 82, one end of the extension portion 82 is fixed to the connecting end by an integral molding manner, and the other end of the extension portion 82 extends toward an end away from the connecting end 81, and a locking hole 83 is provided on the extension portion 82. The end of the connecting end 81 close to the circuit breaker body 1 is connected and fixed to the circuit breaker body 1. When in use, the extension portion 82 is extended out of the locking ring hole and locked with a lock.

[0030] When the circuit breaker body 1 needs electric accessories, the protection assembly includes a shell 9 and a cover 10. The shell 9 includes a frame 91 and a cover 92. The frame 91 and the cover 92 form a rectangular parallelepiped with a receiving cavity. The shell 9 is installed on the cover 2 of the circuit breaker body 1 through a base 12. The electric accessories are installed in the receiving cavity. The cover 10 can be installed on the outer side of the cover 10 in an openable or closed manner. In this embodiment, the cover 10 is a rectangular thin cover and The frame 91 is made of a transparent material, and mounting holes 93 are provided on both sides of the lower end of the frame 91. A connecting shaft 11 is provided at the lower end of the cover plate 10, and both ends of the connecting shaft 11 are installed in the mounting holes 93. A plurality of bosses 911 are provided at the upper end of the frame 91, and a snap hole 101 is provided at a position corresponding to the boss at the upper end of the cover plate 10. The boss 911 cooperates with the snap hole 101, and the cover plate 10 can be firmly fixed on the housing 9 through the cooperation between the snap hole 101 and the boss 911. In addition, in order to be able to snap the cover 10 onto the outer side of the shell 9 and install it alternately with the shell 9, flanges 102 are provided on both sides of the cover 10, one end of the flange 102 is connected to the cover 10, and the other end of the flange 102 extends away from the end of the cover. The flange 102 forms an angle with the cover 10. In the present embodiment, the angle formed is 90°. Therefore, the flange 102 provided can ensure that the cover 10 and the shell 9 are installed alternately, thereby increasing the sealing effect and improving the protective effect.

[0031] In order to further enhance the protection level, a locking rod 921 is further provided on the upper part of the cover body 92, and a padlock hole 922 is provided on the locking rod 921. A locking rod hole 103 is further provided at a position of the cover plate 10 corresponding to the padlock hole. A accommodating gasket 11 is further provided on the locking rod 921. In the present embodiment, the accommodating gasket 11 is made of rubber. A partition area 104 is provided at the accommodating gasket position on one side of the cover plate 10 close to the cover body 92, so that sealing can be performed when the locking rod is extended and reset.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered as the scope of protection of the present invention.

Claims

1. A circuit breaker protection device, comprising: A circuit breaker body, wherein a padlock accessory or an electric operation accessory is provided on the surface cover of the circuit breaker body, and the padlock accessory and the electric operation accessory are detachably mounted on the surface cover, and characterized in that a protective component is provided on the padlock accessory or the electric operation accessory.

2. The circuit breaker protection device according to claim 1, characterized in that: The protection assembly includes a protection cover, which covers the handle on the circuit breaker body. The lower end of the protection cover is movably fixed to the face cover through a connecting piece, and the upper end of the protection cover is fixed to the face cover by opening or buckling a padlock. A sealing ring is also provided on the side of the protection cover close to the face cover.

3. The circuit breaker protection device according to claim 2, characterized in that: The connecting piece includes a fixing platform, a fixing column is provided on one side of the fixing platform close to the surface cover, a fixing hole is provided at a position of the surface cover corresponding to the fixing column, the fixing column is installed in the fixing hole and fixed by a fixing screw.

4. The circuit breaker protection device according to claim 3, characterized in that: The two ends of the fixed platform are also provided with mounting grooves, and the mounting grooves are far away from each other and are also provided with limit platforms. The protective cover is provided with a through hole at one end close to the fixed platform. After the connecting shaft passes through the through hole, both ends are fixed in the mounting grooves, so that the protective cover rotates along the circumferential outer surface of the connecting shaft.

5. The circuit breaker protection device according to claim 2, characterized in that: The padlock comprises a locking ring, one end of which is close to the circuit breaker body and is fixed to the circuit breaker body, a locking ring hole is provided at a position of the protective cover corresponding to the locking ring, and the locking ring is fixed by a lock after passing through the locking ring hole.

6. The circuit breaker protection device according to claim 5, characterized in that: The locking ring includes a connecting end and an extending portion, one end of the extending portion is fixed on the connecting end, the other end of the extending portion extends toward an end away from the connecting end, a locking hole is provided on the extending portion, and an end of the connecting end close to the circuit breaker body is connected and fixed to the circuit breaker body.

7. The circuit breaker protection device according to claim 1, characterized in that: The protective assembly includes a shell and a cover plate, the shell includes a frame and a cover body, the frame and the cover body form a rectangular parallelepiped with a accommodating cavity, the shell is installed on the surface cover of the circuit breaker body through a base, the electrical accessories are installed in the accommodating cavity, the cover plate can be opened or closed and is installed on the outer side of the cover body, the cover plate is a rectangular thin plate, mounting holes are provided on both sides of the lower end of the frame, a connecting shaft is provided at the lower end of the cover plate, both ends of the connecting shaft are installed in the mounting holes, a plurality of bosses are provided at the upper end of the frame, snap holes are provided at positions corresponding to the bosses at the upper end of the cover plate, and the bosses cooperate with the snap holes.

8. The circuit breaker protection device according to claim 7, characterized in that: The upper part of the cover body is also provided with a lock rod, the lock rod is provided with a padlock hole, the position of the cover plate corresponding to the padlock hole is also provided with a lock rod hole, the lock rod is also provided with a receiving gasket, and the cover plate is provided with a partition area at the position of the receiving gasket on one side close to the cover body.

9. The circuit breaker protection device according to claim 2 or 7, characterized in that: The protective cover body and the cover plate are both transparent protective covers.

10. The circuit breaker protection device according to claim 8, characterized in that: The sealing ring and the accommodating gasket are made of rubber.

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