CN219696276U - Operating mechanism and isolating switch - Google Patents

Abstract

The utility model provides an operating mechanism and an isolating switch, and relates to the field of isolating switches, wherein the operating mechanism comprises a shell and a four-bar mechanism arranged in the shell, the four-bar mechanism comprises two side plates arranged on two sides, a jump button is arranged between the two side plates, one end of the jump button is matched with a lock catch, and the jump button is driven to rotate through the four-bar mechanism so as to enable the jump button and the lock catch to be unlocked or buckled; an elastic piece is arranged between the jump button and the side plate and is used for providing moment for the jump button along the tripping direction. In order to increase the brake separating moment during tripping, the elastic piece is added at one end of the trip buckle relative to the lock catch, the other end of the elastic piece is fixed with the side plate, and when the lock buckle is in a locked state, the spring is in a stretching state, and gives an initial rotating moment to the trip buckle, so that the trip buckle can rapidly rotate along a clockwise direction during tripping, and the brake separating force during tripping is increased.

Description

Operating mechanism and isolating switch

Technical Field

The utility model relates to the field of isolating switches, in particular to an operating mechanism and an isolating switch.

Background

The isolating switch is used as a switching device and is mainly used for isolating a power supply, switching operation and connecting and disconnecting a small current circuit, and has no arc extinguishing function. When the isolating switch is in the separated position, the contacts have an insulation distance and an obvious disconnection mark which meet the specified requirements; in the closed position, the switching device is capable of carrying both current under normal loop conditions and current under abnormal conditions (e.g., short circuit) for a prescribed period of time.

With the vigorous development of the photovoltaic industry, the demand for the intellectualization of photovoltaic inverters is increasing. When a photovoltaic circuit fails, as a key component of the breaking function, namely an isolating switch, the circuit must be broken in the shortest time to protect other components. At present, some isolating switch products adopt a four-bar mechanism mode to ensure the reliability of remote tripping, but the traditional four-bar mechanism has the problem of insufficient tripping force when tripping.

Disclosure of Invention

The utility model aims to solve the problem that the four-bar linkage mechanism in the prior art has insufficient brake separating force when the four-bar linkage mechanism is tripped, and provides an operating mechanism and a disconnecting switch, wherein the brake separating force when the four-bar linkage mechanism is tripped is improved by adding a reverse moment to the tail part of a trip.

In order to achieve the above purpose, the technical scheme adopted by the embodiment of the utility model is as follows:

in one aspect of the embodiment of the utility model, an operating mechanism is provided, which comprises a shell and a four-bar mechanism arranged in the shell, wherein the four-bar mechanism comprises two side plates arranged on two sides, a jump button is arranged between the two side plates, one end of the jump button is matched with a lock catch, the four-bar mechanism operates, and the jump button and the lock catch are unlocked or buckled; an elastic piece is arranged between the jump button and the side plate and is used for providing moment for the jump button along the tripping direction.

Optionally, the jump buckle is connected with the side plate through a connecting shaft, the jump buckle rotates around the connecting shaft, one end of the jump buckle is provided with a buckle surface, and the buckle surface is used for being separated from or abutted against the buckle so as to enable the jump buckle and the buckle to be unlocked or buckled, and one end of the jump buckle, which is far away from the buckle, is connected with the elastic piece.

Optionally, the elastic component is a tension spring, one end of the tension spring is connected to the jump ring, the other end of the tension spring is fixed to the side plates, and the two ends of the first shaft are respectively fixed to the two side plates through hooking the tension spring on the first shaft.

Optionally, the jump button comprises two sub jump buttons which are oppositely arranged, and the two sub jump buttons are fixed through a fixing piece a; one end of the sub-jump button connecting tension spring is provided with an ear plate, the ear plates of the two sub-jump buttons are arranged in a back-to-back mode, the end portions of the ear plates are bent back, so that the ear plates are in a U-shaped structure, and the end portions of the ear plates are used for being connected with a connecting shaft.

Optionally, a protrusion is provided at one end of the sub-jump buckle near the lock catch, a surface of the protrusion facing the lock catch forms a lock catch surface, and the lock catch surface is separated from or abutted against the lock catch, so that the jump buckle and the lock catch are unlocked or locked.

Optionally, two tension springs are arranged, and the two tension springs are respectively hung on the two ear plates; two limiting tables are arranged on the lug plate, a limiting groove is formed between the two limiting tables, and the limiting groove is used for hanging a tension spring.

Optionally, a groove is provided on the first shaft, and the groove is used for fixing the tension spring.

Optionally, the input end of the operating mechanism is connected with a rotating shaft, and the rotating shaft, the first connecting rod, the second connecting rod and the jump buckle are sequentially hinged to form a four-connecting-rod structure.

Optionally, the two second connecting rods are symmetrically arranged at two sides of the jump buckle; the first connecting rods are symmetrically arranged at the outer sides of the second connecting rods relative to the jump buckle; the second connecting rod is hinged with the first connecting rod through a second shaft.

On the other hand, the utility model provides an isolating switch which comprises a handle, a switch unit and the operating mechanism, wherein the handle is used for operating the operating mechanism to open or close, and the rotation center line of a rotating shaft of the operating mechanism is collinear with the rotation center line of the opening and closing of the switch unit.

The beneficial effects of the utility model include:

the utility model provides an operating mechanism, which comprises a shell and a four-bar mechanism arranged in the shell, wherein the four-bar mechanism comprises two side plates arranged on two sides, a jump button is arranged between the two side plates, one end of the jump button is matched with a lock catch, the four-bar mechanism operates, and the jump button and the lock catch are released or buckled; an elastic piece is arranged between the jump button and the side plate and is used for providing moment for the jump button along the tripping direction. In order to increase the brake-separating moment during tripping, a tension spring is added at the tail part of the jump button, the other end of the tension spring is fixed with the side plate, and in the hasp state, the spring is in a stretching state, and gives an initial rotating moment to the jump button. The trip buckle can rapidly rotate along the clockwise direction when being tripped.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural diagram of an operating mechanism according to an embodiment of the present utility model;

FIG. 2 is a second schematic structural view of an operating mechanism according to an embodiment of the present utility model;

FIG. 3 is a third schematic structural view of an operating mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic structural diagram of an operating mechanism according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a sub-trip provided in an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a connection structure between a latch and a side plate according to an embodiment of the present utility model;

FIG. 7 is a second schematic diagram of a connection between a latch and a side plate according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a tension spring and first shaft connection structure according to an embodiment of the present utility model;

fig. 9 is a schematic structural diagram of an isolating switch according to an embodiment of the present utility model.

Icon: 01-isolating switch; 10-an operating mechanism; a 20-switch unit; 30-handle; 100-four bar linkage; 110-jumping buckle; 111-sub-trip buckles; 112-connecting holes; 113-a snap face; 114-ear plate; 115-a limiting table; 116 a-a fixing member; 116 b-fixing holes; 117-hinge holes; 120-rotating shaft; 130-a first link; 131-second axis; 140-a second link; 141-a hinge shaft; 150-a tension spring; 160-a first shaft; 161-grooves; 170-side plates; 300-locking buckle; 200-a housing; 400-input shaft.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. It should be noted that, under the condition of no conflict, the features of the embodiments of the present utility model may be combined with each other, and the combined embodiments still fall within the protection scope of the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

At present, some isolating switch products adopt a four-bar mechanism mode to ensure the reliability of remote tripping, but the traditional four-bar mechanism has the conditions of insufficient brake separating force and unstable long-time working hasp surface when tripping.

The four-bar linkage 100 provided by the utility model improves the brake separating force during tripping by adding the reverse moment at the tail part of the jump buckle 110, reduces the processing difficulty by arranging the jump buckle 110 and the hasp surface 113 in the middle, and improves the stability of the hasp surface 113 and the one-time qualification rate of products.

In one aspect of the embodiment of the present utility model, referring to fig. 1, an operating mechanism 10 is provided, which includes a housing 200 and a four-bar mechanism 100 disposed in the housing 200, wherein the four-bar mechanism 100 includes two side plates 170 disposed on two sides, a latch 110 is disposed between the two side plates 170, one end of the latch 110 is matched with a lock catch 300, and the latch 110 is driven to rotate by the four-bar mechanism 100, so that the latch 110 and the lock catch 300 are disengaged or snapped; an elastic member is disposed between the trip button 110 and the side plate 170, and the elastic member is used for providing moment for the trip button 110 along the tripping direction. As shown, the latch 300 is secured between the two side plates 170.

Fig. 1 is a schematic diagram of an operating mechanism 10 according to the present utility model, fig. 2 is a schematic diagram of the operating mechanism 10 according to the present utility model, a four-bar linkage 100 is disposed in the operating mechanism 10 and is enclosed in a housing 200 by the housing 200, an upper operating shaft (an input shaft 400) of the operating mechanism 10 is coaxially disposed with a lower output shaft (a rotating shaft 120) and a body shaft of a disconnecting switch 01, the input shaft 400 rotates to drive the four-bar linkage 100, the four-bar linkage 100 pulls a second link 140 through a spring, and the second link 140 further drives the rotating shaft 120 to rotate.

The utility model has the advantages that the jump buckle 110 is arranged in the middle, as shown in fig. 2, the hasp surface 113 contacted with the lock catch 300 is directly punched and formed, the product consistency is good, the cost is low, and the qualification rate of the product can be effectively improved. By adding the elastic piece to the trip buckle 110, the reverse moment provided by the elastic piece increases the breaking force of the mechanism when the mechanism is tripped, thereby being beneficial to improving the breaking capacity of the whole product.

As shown in fig. 7, when the trip buckle 110 of the present utility model is tripped, it rotates clockwise, in the view of fig. 1, the upper side of the operating mechanism 10 is an input end, the lower side is an output end, the lower side of the operating mechanism 10 is connected with a disconnecting device to perform switching on/off operation, the output end of the four-bar mechanism 100 provided by the present utility model can implement switching on/off conversion of 90 °, an elastic member is provided between the trip buckle 110 and the side plate 170, and the trip buckle 110 can perform switching on/off operation faster when the elastic member is used.

It should be noted that, the layout manner of disposing the jump buckle 110 between the two side plates 170 is only one implementation manner of the embodiment of the present utility model, and is not the only limitation or the only supportable manner of the layout manner of the four-bar mechanism 100, and the specific layout may be set according to actual needs, for example, the layout may also adopt a surrounding arrangement, a transverse arrangement, a vertical arrangement, or the like, so long as the transmission can be achieved.

In summary, the operating mechanism 10 provided by the present utility model includes a housing 200 and a four-bar linkage 100 disposed in the housing 200, wherein the four-bar linkage 100 includes two side plates 170 disposed at two sides, a latch 110 is disposed between the two side plates 170, one end of the latch 110 is engaged with a lock catch 300, and the latch 110 rotates to be released or buckled relative to the lock catch 300; an elastic member is disposed between the trip button 110 and the side plate 170, and the elastic member is used for providing moment for the trip button 110 along the tripping direction. In order to increase the brake-separating moment during tripping, an elastic piece is added at the tail of the jump button 110, the other end of the elastic piece is fixed with the side plate 170, and in the state of the lock catch 300, the elastic piece is in a stretching state, which gives the jump button 110 an initial rotating moment, so that the jump button 110 can rapidly rotate along the clockwise direction when tripping, and the elastic piece can rapidly separate from the lock catch 300.

For example, as shown in fig. 7, the latch 110 is connected to the side plate 170 through a connection shaft (not shown) so that the latch 110 rotates around the connection shaft, a latch surface 113 is formed at one end of the latch 110, the latch surface 113 is used for being separated from or abutting against the latch 300 so that the latch 110 and the latch 300 are released or buckled, and an end of the latch 110 away from the latch 300 is connected to the elastic member. As shown in fig. 4, the elastic member provides a pulling force to the trip button 110 in a trip direction, and the trip button 110 rotates clockwise.

As shown in fig. 6, the elastic member is a tension spring 150, one end of the tension spring 150 is connected to the jump buckle 110, the other end is hooked on the first shaft 160, one end of the tension spring 150 away from the jump buckle 110 is hooked on the first shaft 160, and two ends of the first shaft 160 are respectively fixed on two side plates 170.

As an example, as shown in fig. 5, the jump button 110 includes two sub jump buttons 111 disposed opposite to each other, and the two sub jump buttons 111 are fixed by a fixing member 116 a; the one end that the sub-jump ring 111 connects extension spring 150 is provided with otic placode 114, and the otic placode 114 of two sub-jump rings 111 sets up in opposite directions, and the tip return bend of otic placode 114 to make otic placode 114 "U" shape structure, the otic placode 114 of sub-jump ring 111 is opposite directions and is extended in another sub-jump ring 111, is provided with the connecting hole 112 that is used for with the connecting axle complex on the otic placode 114, and the rotation center of jump ring 110 is connecting hole 112.

As shown in the figure, the two side plates 170 are arranged in parallel, the jump buckle 110 is arranged between the two side plates 170, the ear plate 114 is bent towards the side plate 170, so that the ear plate 114 is close to the side plate 170, the connecting hole 112 is arranged at the end of the ear plate 114, and one surface of the ear plate 114 towards the side plate 170 is a plane and is matched with the side plate 170.

In the embodiment of the utility model, the two sub-jump buckles 111 are sheet metal parts and are riveted through the fixing piece 116a, and the two sub-jump buckles 111 are correspondingly provided with fixing holes 116b for being riveted through the fixing piece 116 a.

Specifically, one end of each sub-jump button 111 forms a protrusion, one surface of the protrusion facing the lock catch 300 forms a snap surface 113, and the snap surface 113 is the outer contour of the two sub-jump buttons 111.

The hasp surface 113 for overlapping the hasp 300 provided by the embodiment of the utility model is composed of two sub-jumps 111, and the hasp surface 113 is parallel to the thickness direction of the formed plate of the two sub-jumps 111.

Specifically, the number of the tension springs 150 is two, the two tension springs 150 are respectively hung on the two ear plates 114, the two limiting tables 115 are arranged on the ear plates 114, and a limiting groove is formed between the two limiting tables 115 and is used for hanging the tension springs 150 so as to limit the tension springs 150 not to slide on the ear plates 114.

As shown in fig. 8, a groove 161 is provided on the first shaft 160, and the groove 161 is used for fixing the tension spring 150 and limiting one end of the tension spring 150.

In summary, the two ends of the tension spring 150 used in the present utility model are provided with the draw hooks, the two draw hooks are respectively hung on the first shaft 160 and the ear plate 114, the first shaft 160 is provided with the groove 161 to fix the tension spring 150, and the ear plate 114 is provided with the limit groove to fix the tension spring 150 and the side plate 170.

In other embodiments, the first shaft 160 for hanging the tension spring 150 may not be provided, the side plates 170 may be bent toward the middle of the two side plates 170, a section of the tension spring 150 may be fixed to the side plates 170, or a part protruding toward the middle may be provided on the side plates 170 for hanging the tension spring 150.

Specifically, the four-bar linkage 100 further includes a rotating shaft 120, and the rotating shaft 120 is used for transmitting power to the operating mechanism 10; the four-bar linkage 100 further includes a first link 130 connected to the rotating shaft 120, a second link 140 connected between the first link 130 and the trip button 110, and the rotating shaft 120, the trip button 110, the first link 130 and the second link 140 are sequentially hinged to form a four-bar linkage structure.

As an example, as shown in fig. 3, the second links 140 include two, two second links 140 are symmetrically disposed at both sides of the jump button 110, the first links 130 include two, and two first links 130 are symmetrically disposed at the outer sides of the second links 140 with respect to the jump button 110; the jump button 110 is provided with a hinge hole 117 for hinging with the second connecting rod 140, and the hinge hole 117 is arranged between the hasp surface 113 and the connecting hole 112; the second link 140 and the first link 130 are hinged by a second shaft 131.

As shown in fig. 4, the second connecting rods 140 are disposed at two sides of the jump buckle 110, and one end of the second connecting rod 140 connected to the second shaft 131 is in a groove 161 structure and is matched with the outer surface of the second shaft 131; the second link 140 connects one end of the trip button 110 and the trip button 110 to be hinged by a hinge shaft 141.

The connection hole 112 is provided at the end of the ear plate 114, and is a rotation axis of the snap button 110, and the snap button 110 rotates relative to the connection hole 112.

The principle of the operating mechanism 10 provided by the utility model is as follows: the input end of the operating mechanism 10 is connected with a rotating shaft 120, the rotating shaft 120 is sequentially connected with a first connecting rod 130, a second connecting rod 140 and a jump button 110 to form a four-connecting rod structure, the rotating shaft 120 rotates to drive the four-connecting rod mechanism 100 to operate, the jump button 110 is buckled or unbuckled relative to a lock catch 300, and a tension spring 150 is further arranged at one end of the jump button 110, which is far away from the lock catch 300, and is used for providing torque for unbuckling. The trip buckle 110 comprises two symmetrical sub trip buckles 111, a buckle surface 113 near one end of the buckle 300 is the outer contour of the sub trip buckle 111, and is formed by direct stamping, so that the product consistency is good, the buckle surface 113 is stable, and meanwhile, the tension spring 150 is arranged at the other end, so that the brake separating force during tripping is increased.

In another aspect of the embodiment of the present utility model, as shown in fig. 9, there is provided an isolating switch 01, which includes a handle 30, a switch unit 20, and the above-described operating mechanism 10, wherein the handle 30 is used to operate the switching-off or switching-on of the operating mechanism 10, and a rotation center line of a rotating shaft 120 of the operating mechanism 10 is collinear with a rotation center line of the switching-on or switching-off of the switch unit 20. The handle 30 is connected to the input shaft 400 to be operated.

The disconnector 01 comprises the same components and advantages as the operating mechanism 10 in the previous embodiments. The components and advantages of the operating mechanism 10 have been described in detail in the previous embodiments and are not described here again.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. An operating mechanism (10) is characterized by comprising a shell (200) and a four-bar mechanism (100) arranged in the shell (200), wherein the four-bar mechanism (100) comprises two side plates (170) arranged on two sides, a jump button (110) is arranged between the two side plates (170), one end of the jump button (110) is matched with a lock catch (300), the four-bar mechanism (100) operates, and the jump button (110) and the lock catch (300) are unlocked or buckled;

an elastic piece is arranged between the lock catch (300) and the side plate (170), and the elastic piece is used for providing moment for the jump buckle (110) along the tripping direction.

2. The operating mechanism (10) of claim 1, wherein the trip button (110) is connected to the side plate (170) by a connecting shaft, the trip button (110) rotates about the connecting shaft, and the elastic member is connected to an end of the trip button (110) away from the lock catch (300).

3. The operating mechanism (10) of claim 2, wherein the elastic member is a tension spring (150), one end of the tension spring (150) is connected to the jump button (110), and the other end is fixed to the side plate (170) through a first shaft (160).

4. An operating mechanism (10) according to claim 3, characterized in that the jump button (110) comprises two oppositely arranged sub jump buttons (111), the two sub jump buttons (111) being fixed by a fixing piece (116 a);

one end of each sub-jump buckle (111) connected with the tension spring (150) is provided with an ear plate (114), the ear plates (114) of the two sub-jump buckles (111) are arranged in a back-to-back mode, the end portions of the ear plates (114) are bent back, so that the ear plates (114) are in a U-shaped structure, and the end portions of the ear plates (114) are used for being connected with the connecting shaft.

5. The operating mechanism (10) according to claim 4, characterized in that an end of the sub-trip (111) adjacent to the latch (300) is provided with a protrusion, a surface of the protrusion facing the latch (300) forming a latch surface (113), the latch surface (113) being separated from or abutting the latch (300) to unlatch or latch the trip (110) and the latch (300).

6. The operating mechanism (10) of claim 4, wherein there are two tension springs (150), the two tension springs (150) being respectively hung on the two ear plates (114);

two limiting tables (115) are arranged on the lug plate (114), limiting grooves are formed between the two limiting tables (115), and the limiting grooves are used for hanging the tension springs (150).

7. An operating mechanism (10) according to claim 3, characterized in that the first shaft (160) is provided with a groove (161), which groove (161) is used for fixing the tension spring (150).

8. The operating mechanism (10) according to claim 4, wherein an input end of the operating mechanism (10) is connected to a rotating shaft (120), and the rotating shaft (120), the first link (130), the second link (140), and the jump button (110) are sequentially hinged to form the four-bar linkage (100).

9. The operating mechanism (10) of claim 8, wherein the second links (140) comprise two, the two second links (140) being symmetrically disposed on either side of the trip button (110);

the first connecting rods (130) comprise two, and the two first connecting rods (130) are symmetrically arranged on the outer sides of the second connecting rods (140) relative to the jump buckle (110).

10. An isolating switch (01) characterized by comprising a handle (30), a switch unit (20) and an operating mechanism (10) according to any one of claims 1-9, wherein the handle is used for operating the operating mechanism (10) to open or close, and the rotation center line of a rotating shaft (120) of the operating mechanism (10) and the rotation center line of the switch unit (20) to open or close are collinear.