Operating rod of molded case circuit breaker

Abstract

The invention provides a molded case circuit breaker operating rod, and relates to the technical field of power systems, the molded case circuit breaker operating rod comprises a rod body, a holding handle and a shifting mechanism, the rod body is an insulating rod, the holding handle is arranged at one end of the rod body and is used for being held by an operator, and the shifting mechanism is arranged at the other end of the rod body and is used for shifting a handle of a molded case circuit breaker; the shifting mechanism comprises a base, the two ends of the base are both provided with limiting pieces used for abutting against the two sides of the molded case circuit breaker, the middle of the base is provided with a shifting piece used for shifting a handle of the molded case circuit breaker, and the sides, close to each other, of the two limiting pieces are both provided with abutting pieces. When the abutting piece abuts against the surface of the molded case circuit breaker, a distance exists between the shifting piece and the surface of the molded case circuit breaker. Under the condition that the operating handle of the molded case circuit breaker is not replaced, an operator can conveniently open and close the molded case circuit breaker, so that the danger coefficient of the operator during operation is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power systems, and in particular to an operating rod of a molded case circuit breaker. Background Art

[0002] The low-voltage switch connecting the low-voltage side of the box-type transformer to the string inverters in a photovoltaic field typically uses a molded case circuit breaker. Routine maintenance of the string inverters requires an operator to manually close the breaker at close range. This short operating handle poses a safety risk to the operator. Existing MCCB handle extensions are expensive to install and require significant space. This can also prevent the box-type transformer's low-voltage cabinet door from closing after installation, making it unsuitable for certain field locations. Summary of the Invention

[0003] The object of the present invention is to provide a molded case circuit breaker operating rod, which can facilitate the operator to open and close the molded case circuit breaker without replacing the molded case circuit breaker operating handle, thereby reducing the risk factor of the operator during operation.

[0004] The present invention is achieved through the following technical solutions: A molded case circuit breaker operating rod, comprising: a rod body, the rod body being an insulating rod; a holding handle, the holding handle being arranged at one end of the rod body for an operator to hold; a toggle mechanism, the toggle mechanism being arranged at the other end of the rod body for toggling the handle of the molded case circuit breaker; wherein the toggle mechanism comprises a base, both ends of the base are provided with limit members for abutting against both sides of the molded case circuit breaker, the middle part of the base is provided with a toggle member for toggling the handle of the molded case circuit breaker, and the sides where the two limit members are close to each other are provided with abutting members, and when the abutting members abut against the surface of the molded case circuit breaker, there is a distance between the toggle member and the surface of the molded case circuit breaker.

[0005] Furthermore, the limiting member includes a horizontal portion and a vertical portion, the base is provided with an adjusting member for driving the two horizontal portions to move simultaneously toward or away from each other, and the bottom of the vertical portion is provided with an aligning member.

[0006] Furthermore, the adjusting member includes a double-axis screw, and a sliding groove is provided on the side of the base away from the rod body along its own length direction. The double-axis screw is rotatably connected in the sliding groove, and an adjustment handle is provided at one end of the base for driving the double-axis screw to rotate. Sliders are slidably provided at both ends of the sliding groove, and threaded holes are provided on the sliders and are threadedly connected to the double-axis screw. The horizontal parts of the two limiting members are respectively fixedly connected to the ends of the two sliders located outside the sliding groove.

[0007] Furthermore, the abutment member includes an abutment wheel, a wheel axle is fixedly provided in the middle of the abutment wheel, one end of the wheel axle is rotatably connected to the vertical part, a support block is provided on the horizontal part, and the other end of the wheel axle is rotatably connected in the support block.

[0008] Furthermore, the toggle member includes a toggle block, one end of the toggle block is provided with a connecting plate, the connecting plate is fixed at the center position of the base by connecting bolts, and the end of the toggle block away from the connecting plate is provided with a rubber sleeve.

[0009] Furthermore, a connecting column is provided at the center of one side of the base facing the rod body, a connecting screw is provided on the connecting column, and a threaded hole for inserting the connecting screw is opened on the rod body.

[0010] Furthermore, the rod body includes an outer rod and an inner rod, the inner rod is slidably connected inside the outer rod, the outer rod is provided with a positioning plug for fixing the position of the inner rod, and the inner rod is provided with sockets for inserting the positioning plug along its own length direction; the inner rod is provided with an anti-rotation strip, and the outer rod is provided with an anti-rotation groove adapted to the anti-rotation strip.

[0011] Furthermore, the outer rod and the inner rod are both hollow rods made of polypropylene.

[0012] Furthermore, one end of the holding handle is provided with an external thread and is threadedly connected to the rod body, and the other end of the holding handle is provided with a limiting sphere.

[0013] Furthermore, the holding handle and the limiting sphere are both made of rubber and are integrally formed.

[0014] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0015] 1. The present invention provides a toggle mechanism to toggle the handle of the molded case circuit breaker, and provides a rod made of insulating material connected to the toggle mechanism so that the operator can stand in a safe area at a distance to operate. It can facilitate the operator to open and close the molded case circuit breaker without replacing the operating handle of the molded case circuit breaker, thereby reducing the risk factor of the operator during operation.

[0016] 2. The present invention configures the rod body as a telescopic rod with adjustable length consisting of an inner rod and an outer rod, so that the length of the rod body can be easily adjusted to adapt to different working conditions. By selecting polypropylene material to make the hollow inner rod and outer rod, the rod body has good insulation and heat resistance, and at the same time has a low density, which is convenient for workers to hold with less effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the present invention in use;

[0018] Figure 2 It is a structural schematic diagram of the toggle mechanism and the molded case circuit breaker of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the toggle mechanism of the present invention;

[0020] Figure 4 Schematic diagram of the installation structure of the limiting member and the adjusting member on the base of the present invention;

[0021] Figure 5 This is a schematic structural diagram of the rod body and the handle of the present invention;

[0022] Figure markings: 1-rod body, 11-outer rod, 111-positioning insert, 12-inner rod, 121-socket, 122-anti-rotation strip, 2-holding handle, 21-limiting ball, 3-toggle mechanism, 31-base, 311-connecting column, 312-connecting screw, 32-limiting member, 321-horizontal part, 322-vertical part, 33-toggle member, 331-toggle block, 332-connecting plate, 333-connecting bolt, 334-rubber sleeve, 34-abutment member, 341-abutment wheel, 342-wheel axle, 343-support block, 35-adjusting member, 351-dual-axis screw, 352-adjusting handle, 353-slider, 36-alignment member, 361-alignment block, 362-connecting block, 4-molded case circuit breaker, 41-handle. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0025] Example

[0026] The following reference Figure 1-Figure 5 As shown, further described in conjunction with a specific embodiment, this embodiment provides a molded case circuit breaker operating lever, referring to Figure 1As shown, the rod body 1 includes a holding handle 2 and a toggle mechanism 3. The rod body 1 is an insulating rod. The holding handle 2 is mounted at one end of the rod body 1 for the operator to hold. The toggle mechanism 3 is mounted at the other end of the rod body 1 for toggling the handle 41 of the molded case circuit breaker 4. The operator holds the rod body 1 through the holding handle 2 and aligns the toggle mechanism 3 with the molded case circuit breaker 4 to toggle the handle 41 of the molded case circuit breaker 4. Since the rod body 1 is made of an insulating material and the length of the rod body 1 allows the operator to stand in a safe area at a distance to operate, thereby ensuring the safety of the operator and avoiding the risks caused by close-range operation.

[0027] Reference Figure 2 As shown, the toggle mechanism 3 includes a base 31, and both ends of the base 31 are provided with limit members 32 for abutting against both sides of the molded case circuit breaker 4 to ensure that the toggle mechanism 3 as a whole performs the toggle operation in the appropriate position, and the movement trajectory of the base 31 will not deviate when the base 31 is driven to move by the rod body 1; a toggle member 33 for toggling the handle 41 of the molded case circuit breaker 4 is installed in the middle of the base 31. When the base 31 moves, the toggle member 33 abuts against the handle 41 of the molded case circuit breaker 4 The handle 41 is connected and pushed to realize the opening and closing operation of the molded case circuit breaker 4; the two limit members 32 are each provided with an abutment member 34 on the side close to each other. When the abutment member 34 abuts against the surface of the molded case circuit breaker 4, there is a distance between the toggle member 33 and the surface of the molded case circuit breaker 4. The setting of the abutment member 34 can prevent the toggle member 33 from rubbing or colliding with the surface of the molded case circuit breaker 4, while ensuring that the toggle member 33 can toggle the handle 41 of the molded case circuit breaker 4.

[0028] Reference Figure 3 、 Figure 4 As shown, the limit member 32 includes a horizontal portion 321 and a vertical portion 322. An adjusting member 35 is provided on the base 31 for driving the two horizontal portions 321 to move simultaneously toward or away from each other. The adjusting member 35 can drive the distance between the two horizontal portions 321 to change, thereby being able to adapt to molded case circuit breakers 4 of different widths. An alignment member 36 is provided at the bottom of the vertical portion 322, and the alignment member 36 includes an alignment block 361. The alignment block 361 is welded to the vertical portion 322 through a connecting block 362. The alignment block 361 is an L-shaped block and can fit with the corners of the molded case circuit breaker 4 to play an alignment role during the movement of the base 31. When the rod body 1 drives the toggle mechanism 3 to move as a whole, when the alignment member 36 fits with the corners of the molded case circuit breaker 4, the operator can judge that the rod body 1 is maintained in a horizontal state at this time, and the toggle mechanism 3 does not shift during the movement process, thereby avoiding the deviation of the position of the toggle member 33 and the handle 41 of the molded case circuit breaker 4 due to the offset of the toggle mechanism 3, thereby affecting the toggle effect.

[0029] Reference Figure 4 As shown, the adjustment member 35 includes a dual-axis screw 351. A slot is defined along the length of the base 31 on a side away from the rod body 1. The dual-axis screw 351 is rotatably connected within the slot. An adjustment handle 352 is provided at one end of the base 31 for driving the dual-axis screw 351 to rotate. Sliders 353 are slidably provided at both ends of the slot. The slides 353 have threaded holes and are threadedly connected to the dual-axis screw 351. The horizontal portions 321 of the two limit members 32 are respectively fixedly connected to the ends of the two slides 353 located outside the slot. When the spacing between the two horizontal portions 321 needs to be changed to accommodate molded case circuit breakers 4 of different widths, the adjustment handle 352 drives the screw to rotate, which causes the slides 353 to simultaneously move the two horizontal portions 321 toward or away from each other, thereby adapting the spacing between the adjacent sides of the two vertical portions 322 to the molded case circuit breaker 4.

[0030] Reference Figure 3 、 Figure 4 As shown, the abutment member 34 includes an abutment wheel 341, the middle portion of which is fixedly connected to an axle 342, one end of which is rotatably connected to the vertical portion 322, and a support block 343 is provided on the horizontal portion 321, and the other end of the axle 342 is rotatably connected to the support block 343; the abutment wheel 341 can, on the one hand, create a gap between the toggle member 33 and the molded case circuit breaker 4, and on the other hand, can reduce the friction between the toggle mechanism 3 and the molded case circuit breaker 4 when the toggle mechanism 3 moves, thereby making the movement process smoother. The toggle member 33 includes a toggle block 331, one end of which is provided with a connecting plate 332, which is fixedly connected to the center position of the base 31 by a connecting bolt 333. Since different molded case circuit breakers 4 have handles 41 of different sizes, the toggle block 331 is mounted on the base 31 in a detachable manner to facilitate replacement of the toggle block 331 according to handles 41 of different sizes, thereby improving applicability. A rubber sleeve 334 is provided at one end of the toggle block 331 away from the connecting plate 332 . The rubber sleeve 334 can increase the friction between the toggle block 331 and the handle 41 , thereby ensuring that the movement of the toggle block 331 can smoothly toggle the handle 41 .

[0031] Reference Figure 1 、 Figure 3 As shown, a connecting post 311 is fixedly mounted at the center of the side of the base 31 facing the rod body 1. A connecting screw 312 is provided on the connecting post 311, and a threaded hole is provided on the rod body 1 for inserting the connecting screw 312. The base 31 is detachably mounted on the rod body 1 through the threaded connection, making it easy to store the entire operating rod. Furthermore, if either the rod body 1 or the toggle mechanism 3 is damaged, they can be replaced separately, saving wear and tear costs.

[0032] Reference Figure 5As shown, the rod body 1 includes an outer rod 11 and an inner rod 12, and the inner rod 12 is slidably connected to the outer rod 11. The outer rod 11 is provided with a positioning plug 111 for fixing the position of the inner rod 12, and the inner rod 12 is distributed along its length direction with a socket 121 for inserting the positioning plug 111. By changing the insertion amount of the inner rod 12 inside the outer rod 11, the overall length of the rod body 1 can be changed, so that the operator can adjust the length of the rod body 1 according to the actual situation on site and operating habits; an anti-rotation strip 122 is provided on the inner rod 12, and an anti-rotation groove adapted to the anti-rotation strip 122 is opened on the outer rod 11, so that the inner rod 12 and the outer rod 11 will not rotate relative to each other, on the one hand, avoiding the position offset between the positioning plug 111 and the socket 121, and on the other hand, avoiding the instability of the rod body 1 during use that affects the staff's turning process. It should be noted that the outer rod 11 and the inner rod 12 are both made of polypropylene, which has good insulation and heat resistance, and has a low density of about 0.9 g / cubic centimeter. It is one of the lightest types of plastic and can be easily held by operators. At the same time, in this embodiment, the outer rod 11 and the inner rod 12 are both set as hollow rods to further reduce the weight of the rod body 1.

[0033] Reference Figure 5 As shown, one end of the grip 2 is provided with an external thread and is threadedly connected to the rod body 1. The other end of the grip 2 is provided with a limiting ball 21. By changing the connection depth of the external thread on the grip 2 within the rod body 1, the operator can change the spacing between the limiting ball 21 and the rod body 1. When the operator grasps the grip 2, the base of the hand abuts against the end of the rod body 1, and the tail of the hand abuts against the limiting ball 21, thereby improving the stability of the grip. The grip 2 and the limiting ball 21 are both made of rubber and are integrally molded to improve the friction coefficient and softness, ensuring high stability and comfort when the operator grasps the grip.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A molded case circuit breaker operating lever, characterized in that: include: A rod body (1), wherein the rod body (1) is an insulating rod; A holding handle (2), the holding handle (2) being arranged at one end of the rod body (1) and being used for an operator to hold; A toggle mechanism (3), the toggle mechanism (3) being arranged at the other end of the rod body (1) and being used to toggle a handle (41) of the molded case circuit breaker (4); The toggle mechanism (3) comprises a base (31), both ends of the base (31) are provided with limit members (32) for abutting against both sides of the molded case circuit breaker, a toggle member (33) for toggling the handle (41) of the molded case circuit breaker (4) is provided in the middle of the base (31), and abutting members (34) are provided on the sides where the two limit members (32) are close to each other, and when the abutting members (34) abut against the surface of the molded case circuit breaker, there is a distance between the toggle member (33) and the surface of the molded case circuit breaker.

2. The operating lever of the molded case circuit breaker according to claim 1, characterized in that: The limiting member (32) comprises a horizontal portion (321) and a vertical portion (322); an adjusting member (35) is provided on the base (31) for driving the two horizontal portions (321) to move simultaneously in a direction of approaching or moving away from each other; and an alignment member (36) is provided at the bottom of the vertical portion (322).

3. The operating lever of the molded case circuit breaker according to claim 2, characterized in that: The adjusting member (35) includes a double-axis screw (351), a side of the base (31) away from the rod body (1) is provided with a slide groove along its own length direction, the double-axis screw (351) is rotatably connected in the slide groove, one end of the base (31) is provided with an adjusting handle (352) for driving the double-axis screw (351) to rotate, and sliders (353) are slidably provided at both ends of the slide groove, the sliders (353) are provided with threaded holes and are threadedly connected to the double-axis screw (351), and the horizontal parts (321) of the two limiting members (32) are respectively fixedly connected to one end of the two sliders (353) located outside the slide groove.

4. The operating lever of the molded case circuit breaker according to claim 2, characterized in that: The abutment member (34) includes an abutment wheel (341), a wheel axle (342) is fixedly provided in the middle of the abutment wheel (341), one end of the wheel axle (342) is rotatably connected to the vertical portion (322), a support block (343) is provided on the horizontal portion (321), and the other end of the wheel axle (342) is rotatably connected in the support block (343).

5. The operating lever of the molded case circuit breaker according to claim 1, characterized in that: The toggle member (33) comprises a toggle block (331), one end of the toggle block (331) is provided with a connecting plate (332), the connecting plate (332) is fixedly arranged at the center position of the base (31) via a connecting bolt (333), and one end of the toggle block (331) away from the connecting plate (332) is provided with a rubber sleeve (334).

6. The operating lever of the molded case circuit breaker according to claim 1, characterized in that: A connecting column (311) is provided at the center of one side of the base (31) facing the rod body (1), a connecting screw (312) is provided on the connecting column (311), and a threaded hole for inserting the connecting screw (312) is provided on the rod body (1).

7. The operating lever of the molded case circuit breaker according to claim 1, characterized in that: The rod body (1) comprises an outer rod (11) and an inner rod (12); the inner rod (12) is slidably connected to the outer rod (11); a positioning insert (111) for fixing the position of the inner rod (12) is provided on the outer rod (11); and insertion holes (121) for inserting the positioning insert (111) are distributed along the length direction of the inner rod (12); an anti-rotation strip (122) is provided on the inner rod (12); and an anti-rotation groove adapted to the anti-rotation strip (122) is provided on the outer rod (11).

8. The operating lever of the molded case circuit breaker according to claim 7, characterized in that: The outer rod (11) and the inner rod (12) are both hollow rods made of polypropylene.

9. The operating lever of the molded case circuit breaker according to claim 1, characterized in that: One end of the holding handle (2) is provided with an external thread and is threadedly connected to the rod body (1); the other end of the holding handle (2) is provided with a limiting sphere (21).

10. The operating lever of the molded case circuit breaker according to claim 9, characterized in that: The holding handle (2) and the limiting sphere (21) are both made of rubber and are integrally formed.

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