Electric operating mechanism mounting structure for frame circuit breaker

Abstract

An electric operating mechanism mounting structure for a frame circuit breaker comprises an electric operating mechanism and a manual operating mechanism, and the electric operating mechanism is inserted into an energy storage shaft of the manual operating mechanism of the circuit breaker through a positioning hole. A first limiting part is arranged at the position, close to the circuit breaker base, of the top end of a first side plate on the side, away from the manual operation mechanism, of the electric operation mechanism, a cover plate of the manual operation mechanism extends to the top end of the first side plate, and a first limiting feature is arranged at the position, corresponding to the first limiting part, of the cover plate. By improving the mounting structure of the electric operating mechanism on the circuit breaker, the upper end of the mounting position is not fastened by using a screw, so that the risk that the screw falls off a gear box in the electric operating mechanism is avoided, the mounting time and cost are saved, and the electric operating mechanism is reliably mounted on the circuit breaker through the arrangement of the limiting surface; the accuracy of the switching position of the travel switch related to the relative position of the manual operation mechanism and the electric operation mechanism is ensured, and the reliable and efficient transmission of the gearbox is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of circuit breaker accessory technology, specifically speaking, it is a kind of frame circuit breaker electric operating mechanism mounting structure BACKGROUND

[0002] Low-voltage circuit breaker is also called automatic switch, commonly known as "air switch", it is a kind of both manual switch function, and can automatically carry out pressure loss, under voltage, overload and short-circuit protection electric appliance. It can be used to distribute electric energy, and it is not frequent to start asynchronous motor, and it is protected to power line and motor etc., when they occur serious overload or short-circuit and under voltage fault, it can automatically cut off the circuit, its function is equivalent to the combination of fuse type switch and over-under heat relay, and after breaking fault current, it is generally not necessary to change parts, and it has been widely used.

[0003] Circuit breaker electric operating mechanism is important energy storage transmission mechanism of circuit breaker, electric operating mechanism is installed on circuit breaker, and the manual operating mechanism of circuit breaker is electrically stored energy. After energization of electric operating mechanism, energy storage starts, and the travel switch of electric operating mechanism switches off after energy storage. When the manual operating mechanism releases energy, the travel switch switches on, and the electric operating mechanism carries out the energy storage of next cycle. In the prior art, after a certain number of cycles, the fastening screw on the upper end side of electric operating mechanism will appear loose phenomenon, and the risk of loose fastening screw or gear box in electric operating mechanism is stuck. And the electric operating mechanism is installed by fastening screw, and additional friction torque is generated on the parts of electric operating mechanism. If the screw is tightened to prevent screw loosening, additional cost and time are increased, and it is not conducive to maintenance and disassembly. UTILITY MODEL CONTENTS

[0004] The utility model aims at the defects of existing electric operating mechanism installed on circuit breaker, and provides a kind of frame circuit breaker electric operating mechanism mounting structure, the electric operating mechanism is reliably fixed and installed on circuit breaker by the improvement of the mounting structure of electric operating mechanism on circuit breaker, the reliable and efficient transmission of gear box is ensured, and the accurate position of travel switch switching is ensured.

[0005] TECHNICAL SCHEME

[0006] In order to achieve the above technical purpose, the utility model provides a kind of electric operating mechanism mounting structure for frame circuit breaker, it includes electric operating mechanism and manual operating mechanism, the electric operating mechanism is inserted in the energy storage shaft of the manual operating mechanism of circuit breaker by positioning hole, it is characterized by: the top of the side plate one of electric operating mechanism side away from manual operating mechanism is positioned one in the position close to circuit breaker base, the cover plate of manual operating mechanism extends to the top of side plate one, and the cover plate is positioned feature one in the position corresponding to the limit one.

[0007] In an embodiment, a limit protrusion is provided on the side of the side plate one corresponding to the circuit breaker base, and the limit protrusion abuts against the surface of the circuit breaker base.

[0008] In an embodiment, a limit protrusion step is provided on the top side of the side plate one away from the circuit breaker base, and the cover plate is provided with a limit feature two corresponding to the limit protrusion step.

[0009] In an embodiment, the side plates on the two sides of the electric operating mechanism and the manual operating mechanism are fixedly connected by connecting screws.

[0010] In an embodiment, the cover plate is provided with a limit feature three corresponding to the side plate one, and the top side of the side plate one is provided with a limit feature four corresponding to the limit feature three.

[0011] In an embodiment, the limit feature three is two protrusions extending from the side of the cover plate.

[0012] In an embodiment, the mounting plate is fixedly installed on the base and located on the side of the electric operating mechanism away from the manual operating mechanism, and the side plate one is provided with a limit feature five corresponding to the circuit breaker base, and the limit feature five abuts against the side of the mounting plate.

[0013] In an embodiment, a limit column is provided on the top of the inner side of the side plate one away from the circuit breaker base, and the cover plate is provided with a limit bend corresponding to the limit column.

[0014] In an embodiment, the side plates on the two sides of the electric operating mechanism and the manual operating mechanism are fixedly connected by the groove on the connecting shaft clamped in the corresponding clamping gourd hole on the side plate.

[0015] In one of the embodiments, the shaft sleeve is riveted on the side plate on the side of the electric operating mechanism, and a nut is riveted on the side plate on the side of the manual operating mechanism corresponding to the position of the shaft sleeve, and the connecting screw is fastened from the side plate on the side of the electric operating mechanism through the shaft sleeve and the nut. Advantages

[0016] The utility model provides a kind of frame circuit breaker electric operating mechanism mounting structure, it includes electric operating mechanism and manual operating mechanism, the electric operating mechanism is inserted in the energy storage shaft of the manual operating mechanism of circuit breaker by positioning hole, the position of the top of side plate one on the side of electric operating mechanism away from manual operating mechanism is provided with limit one, the cover plate of manual operating mechanism extends to the top of side plate one, limit feature one is provided on the cover plate corresponding with limit one. Through the improvement of electric operating mechanism mounting structure on circuit breaker, no screw fastening is used in installation position upper end, avoid the risk that screw falls into gear box in electric operating mechanism, save installation work time and cost, without harmful constraint additional friction torque, with reasonable limit surface, the fastening force requirement of fastening screw is reduced, the setting of limit surface guarantees the accuracy of travel switch switching position, so that electric operating mechanism is reliably fixed and installed on circuit breaker, guarantee the reliable and efficient transmission of gear box. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure Figure 1 a 1b, 1c is a schematic diagram of the prior art electric operating mechanism installation;

[0019] Figure Figure 2 1a is a schematic diagram of the electric operating mechanism installation of the utility model embodiment 1;

[0020] Figure Figure 3 1b is a schematic diagram of the electric operating mechanism installation of the utility model embodiment 1; Figure 2

[0021] Figure Figure 4 1c is a front view of the electric operating mechanism installation of the utility model embodiment 1;

[0022] Figure Figure 5 1d is a schematic diagram of the electric operating mechanism of the utility model embodiment 1;

[0023] Figure​Figure 6 is the electric operating mechanism installation schematic diagram one of the embodiment 2 of the utility model;

[0024] attached Figure 7 is the electric operating mechanism installation schematic diagram of the embodiment 2 of the utility model Figure 2 ;

[0025] attached Figure 8 is the electric operating mechanism installation schematic diagram of the embodiment 3 of the utility model;

[0026] attached Figure 9 is the electric operating mechanism installation schematic diagram of the embodiment 4 of the utility model;

[0027] attached Figure 10 is the electric operating mechanism installation schematic diagram one of the embodiment 5 of the utility model;

[0028] attached Figure 11a is the electric operating mechanism installation schematic diagram of the embodiment 5 of the utility model Figure 2 ;

[0029] attached Figure 11b is the gourd hole and connecting shaft connection schematic diagram of the embodiment 5 of the utility model.

[0030] attached Figure 12 is the electric operating mechanism installation schematic diagram one of the embodiment 6 of the utility model;

[0031] attached Figure 13 is the electric operating mechanism installation schematic diagram of the embodiment 6 of the utility model Figure 2 ; DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantage of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be clearly and completely explained below with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0033] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there can be a middle component. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the specification of the present application are for illustrative purposes only and do not indicate the only implementation.

[0034] In addition, the terms "first", "second", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered sequence. Thus, use of "first" and "second" designations in this description should not be understood as implying that a single feature is limited to at least one occurrence. In this description, the meaning of "a plurality" is at least two, such as two, three, etc., unless the context clearly dictates otherwise.

[0035] In this application, unless otherwise explicitly specified and limited, a first feature is "on", "under", "above" or "over" a second feature can be that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the first feature is "on", "above" or "over" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. The first feature is "under", "below" or "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.

[0036] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more related listed items. Embodiments

[0037] In the prior art, after a certain number of cycles, as shown in Figs. Figure 1 a , 1b, 1c, the fastening screw on the upper end side of the electric operating mechanism will appear loose, the loose fastening screw or the risk of falling into the gear box of the electric operating mechanism and jamming; and the installation of the electric operating mechanism by the fastening screw produces over-constraint and additional friction torque on the electric operating mechanism components; if in order to prevent the screw from loosening, the way of increasing the screw fastening agent is adopted, it will additionally increase the cost and time, and is not conducive to maintenance and disassembly. In order to solve this technical problem, as shown in Figs. Figure 2,3,4 and 5、8, the embodiment provides a frame circuit breaker electric operating mechanism mounting structure, it includes electric operating mechanism a and manual operating mechanism b, the electric operating mechanism a is inserted on the energy storage shaft b01 of the manual operating mechanism b of the circuit breaker through the positioning hole a01, and simultaneously, the side plate d, d' of the electric operating mechanism a and the manual operating mechanism b are fixedly connected on the two sides of mutual approach, and the shaft sleeve h03 is fixedly connected with the connecting screw h01.Detailedly, the shaft sleeve h03 is riveted in the side plate d' of the side plate d, d' on the side of the electric operating mechanism a, and the nut is riveted in the side plate d of the side plate d, d' on the side of the manual operating mechanism b and the corresponding position of the shaft sleeve h03, and the connecting screw h01 is fastened from the side plate d' on the side of the electric operating mechanism a through the shaft sleeve h03 and the nut.

[0038] As shown in the accompanying drawings Figure 2 The top end of the side plate a02 on the side of the electric operating mechanism a away from the manual operating mechanism b is provided with a limit a0201 close to the circuit breaker base c, the cover plate b02 of the manual operating mechanism b extends to the top end of the side plate a02, and the limit feature b0201 is arranged on the cover plate b02 corresponding to the limit a0201, so that the clockwise rotation of the electric operating mechanism can be avoided.

[0039] Meanwhile, in the embodiment, the limit feature can be further added to limit the clockwise rotation of the electric operating mechanism around the energy storage shaft b01, and specifically, the limit protrusion a0202 is arranged on the side edge of the side plate a02 corresponding to the circuit breaker base c, and the limit protrusion a0202 abuts against the surface of the circuit breaker base c.

[0040] In addition, as shown in the accompanying drawings Figure 2 The limit protrusion two b0202 is further arranged on the side edge of the cover plate b02 corresponding to the circuit breaker base c, and the limit protrusion two b0202 abuts against the surface of the circuit breaker base c. Specifically, the cover plate b02 is fixed on the base c only through the screw b03, and the limit protrusion two b0202 is arranged close to the base c to make the limit protrusion two b0202 abut against the surface of the circuit breaker base c, so as to further limit the clockwise rotation of the electric operating mechanism around the energy storage shaft b01. Embodiment

[0041] As shown in the accompanying drawings Figure 6 And 7As shown, in this embodiment, in order to reduce the risk of failure of the travel switch switching, a limiting protrusion step a0203 is arranged on the top end side of the side plate one a02 away from the circuit breaker base c, and a limiting feature two b0203 is arranged on the cover plate b02 corresponding to the limiting protrusion step a0203. The limiting feature two b0203 is a protrusion on the cover plate b02 matching the limiting protrusion step a0203. The limiting feature two b0203 limits the rotation of the side plate one a02 counterclockwise around the energy storage shaft b01. The other structures are the same as those of embodiment 1.

[0042] The assembly process of this embodiment is: first, insert the electric operating mechanism a into the energy storage shaft b01, then translate the electric operating mechanism a along the fastening direction of the connecting screw h01, and rotate the electric operating mechanism a appropriately during translation to make the limiting one a0201 match the limiting feature one b0201, and the limiting protrusion step a0203 match the limiting feature three b0203, and finally fasten the screw b03 and the screw h01 respectively. Embodiment

[0043] As shown in the accompanying drawings, Figure 8 As shown, in this embodiment, the mounting plate e is fixedly installed on the base c and located on the side of the electric operating mechanism a away from the manual operating mechanism b. The limiting feature five a0205 is arranged on the side edge of the side plate one a02 corresponding to the circuit breaker base c, and the limiting feature five a0205 presses against one side edge of the mounting plate e. Specifically, the limiting feature five a0205 is a bend on the side edge of the side plate one a02 corresponding to the circuit breaker base c. In this way, the limiting protrusion step a0203 or the limiting feature five a0205 can be selected for limiting according to actual needs, and the other structures are the same as those of embodiment 2. This embodiment can limit the counterclockwise rotation of the electric operating mechanism. Embodiment

[0044] As shown in the accompanying drawings, Figure 9 As shown, in this embodiment, the limiting column a0206 is arranged on the top of the inner side of the side plate one a02 away from the circuit breaker base c, and the limiting bend b0205 is arranged on the cover plate b02 corresponding to the limiting column a0206 to limit the counterclockwise rotation of the electric operating mechanism a. At the same time, the corresponding limiting protrusion step a0203 is cancelled, and the other structures are the same as those of embodiment 2. This embodiment can limit the counterclockwise rotation of the electric operating mechanism. Embodiment

[0045] As shown in the accompanying drawings, Figure 10 and 11aAs shown in Fig. 11b, in this embodiment, the side plate d' is riveted with a connecting shaft h02, the electric operating mechanism a and the manual operating mechanism b are fixedly connected through the clamping of the groove h0201 on the connecting shaft h02 in the clamping gourd hole h04 on the corresponding side plate, and the connecting screw h01 is cancelled. Specifically, one end of the connecting shaft h02 is placed in the large hole position of the clamping gourd hole h04, the electric operating mechanism a is rotated, the groove h0201 on the connecting shaft h02 is turned from the large hole position to the small hole position, and the connection and installation of the side plates d and d' can be achieved without the shaft sleeve and the screw. In the case of the limiting structure for limiting the rotation of the electric operating mechanism a as in the embodiment 2 or the embodiment 3 or the embodiment 4, the connecting shaft h02 will not fall back to the large hole position of the gourd hole h04. Embodiments

[0046] As shown in Fig. 11b, in this embodiment, the side plate d' is riveted with a connecting shaft h02, the electric operating mechanism a and the manual operating mechanism b are fixedly connected through the clamping of the groove h0201 on the connecting shaft h02 in the clamping gourd hole h04 on the corresponding side plate, and the connecting screw h01 is cancelled. Specifically, one end of the connecting shaft h02 is placed in the large hole position of the clamping gourd hole h04, the electric operating mechanism a is rotated, the groove h0201 on the connecting shaft h02 is turned from the large hole position to the small hole position, and the connection and installation of the side plates d and d' can be achieved without the shaft sleeve and the screw. In the case of the limiting structure for limiting the rotation of the electric operating mechanism a as in the embodiment 2 or the embodiment 3 or the embodiment 4, the connecting shaft h02 will not fall back to the large hole position of the gourd hole h04. Figure 12 13 As shown in Fig. 11b, in this embodiment, the side plate d' is riveted with a connecting shaft h02, the electric operating mechanism a and the manual operating mechanism b are fixedly connected through the clamping of the groove h0201 on the connecting shaft h02 in the clamping gourd hole h04 on the corresponding side plate, and the connecting screw h01 is cancelled. Specifically, one end of the connecting shaft h02 is placed in the large hole position of the clamping gourd hole h04, the electric operating mechanism a is rotated, the groove h0201 on the connecting shaft h02 is turned from the large hole position to the small hole position, and the connection and installation of the side plates d and d' can be achieved without the shaft sleeve and the screw. In the case of the limiting structure for limiting the rotation of the electric operating mechanism a as in the embodiment 2 or the embodiment 3 or the embodiment 4, the connecting shaft h02 will not fall back to the large hole position of the gourd hole h04.

[0047] The utility model provides a kind of electric operating mechanism mounting structure for frame circuit breaker, by improving electric operating mechanism mounting structure on circuit breaker, there is no screw fastening in installation position upper end, avoid the risk of screw falling gear box, save installation man-hour and cost, there is no harmful over constraint additional friction torque, with reasonable limit surface, reduce the fastening force requirement of fastening screw, the setting of limit surface guarantees the accuracy of travel switch switching position, so that electric operating mechanism can be reliably fixed and installed on circuit breaker, guarantee the reliable and efficient transmission of gear box.

[0048] The technical features of the above-described embodiments can be combined arbitrarily, and to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0049] ​The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific and detailed manner, but should not be construed as limiting the scope of the patent of the present application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

[0050] The appended claims are intended to be the only measure of the breadth of the present application.

Claims

1. A mounting structure for an electrically operated mechanism of a frame circuit breaker, comprising an electrically operated mechanism (a) and a manually operated mechanism (b), wherein the electrically operated mechanism (a) is inserted into the energy storage shaft (b01) of the manually operated mechanism (b) of the circuit breaker through a positioning hole (a01), characterized in that: On the top of the side plate (a02) of the electric operating mechanism (a) away from the manual operating mechanism (b), near the circuit breaker base (c), a limit stop (a0201) is provided. The cover plate (b02) of the manual operating mechanism (b) extends to the top of the side plate (a02), and a limit feature (b0201) is provided on the cover plate (b02) at a position corresponding to the limit stop (a0201).

2. The mounting structure for an electrically operated mechanism of a frame circuit breaker as described in claim 1, characterized in that: A limiting protrusion (a0202) is provided on one side of the side plate (a02) corresponding to the circuit breaker base (c), and the limiting protrusion (a0202) abuts against the surface of the circuit breaker base (c). A second limiting protrusion (b0202) is provided on one side of the cover plate (b02) corresponding to the circuit breaker base (c), and the second limiting protrusion (b0202) abuts against the surface of the circuit breaker base (c).

3. The mounting structure for an electrically operated mechanism of a frame circuit breaker as described in claim 1, characterized in that: A limiting protrusion step (a0203) is provided on the top side of the side plate (a02) away from the circuit breaker base (c), and a limiting feature (b0203) is provided on the cover plate (b02) at a position corresponding to the limiting protrusion step (a0203).

4. The mounting structure for an electrically operated mechanism of a frame circuit breaker as described in claim 1, characterized in that: The side plates of the electric operating mechanism (a) and the manual operating mechanism (b) on their respective sides are fixedly connected by connecting screws (h01).

5. The mounting structure for an electrically operated mechanism of a frame circuit breaker as described in claim 1, characterized in that: A limiting feature three (b0204) is provided on one side of the cover plate (b02) corresponding to the side plate one (a02), and a limiting feature four (a0204) is provided on the top side of the side plate one (a02) corresponding to the limiting feature three (b0204).

6. The mounting structure for an electrically operated mechanism of a frame circuit breaker as described in claim 5, characterized in that: The limiting feature three (b0204) consists of two protrusions extending from one side of the cover plate (b02).

7. The mounting structure for an electrically operated mechanism of a frame circuit breaker as described in claim 1, characterized in that: The mounting plate (e) is fixedly mounted on the base (c) and located on the side of the electric operating mechanism (a) away from the manual operating mechanism (b). A limiting feature five (a0205) is provided on the side plate one (a02) corresponding to the circuit breaker base (c). The limiting feature five (a0205) presses against one side of the mounting plate (e).

8. The mounting structure for an electrically operated mechanism of a frame circuit breaker as described in claim 1, characterized in that: A limit post (a0206) is provided on the top of the inner side of the side plate (a02) away from the circuit breaker base (c), and a limit bend (b0205) is provided on the cover plate (b02) at the position corresponding to the limit post (a0206).

9. The mounting structure for an electrically operated mechanism of a frame circuit breaker as described in claim 1, characterized in that: The side plates (d, d') on the two sides of the electric operating mechanism (a) and the manual operating mechanism (b) that are close to each other are fixedly connected by the groove (h0201) on the connecting shaft (h02) and the corresponding hoist hole (h04) on the side plate.

10. The mounting structure for an electrically operated mechanism of a frame circuit breaker as described in claim 4, characterized in that: Includes a bushing (h03), which is riveted to the side plate (d,d') on the side of the electric operating mechanism (a). A nut is riveted to the side plate (d,d') on the side of the manual operating mechanism (b) at the corresponding position of the bushing (h03). A connecting screw (h01) passes through the bushing (h03) from the side plate on the side of the electric operating mechanism (a) and is fastened to the nut.

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