CN217656221U - Switch cabinet - Google Patents

Abstract

The present disclosure relates to a switchgear, comprising: a cabinet body; the cabinet door is movably arranged on the cabinet body, the cabinet door can open or close the cabinet body, and the cabinet door is provided with a matching part; the ground disconnecting link is arranged on the cabinet body and provided with a rotating shaft, and the rotating shaft can rotate in the process of disconnecting or switching on the ground disconnecting link; the interlocking mechanism comprises a gear set, an interlocking part and a limiting part, the interlocking part is connected with the rotating shaft through the gear set, the interlocking part can synchronously rotate with the rotating shaft under the action of the gear set, the limiting part is connected with the interlocking part, and the limiting part can be switched to a locking position or a releasing position when the interlocking part rotates; the limiting part can be clamped with the matching part when the ground disconnecting link is in a disconnecting state so as to be located at a locking position, and the limiting part can be separated from the matching part when the ground disconnecting link is in a closing state so as to be located at a releasing position. The switch cabinet of the scheme not only realizes the five-prevention interlocking function, but also reduces the whole volume of the high-voltage switch cabinet.

Description

Switch cabinet

Technical Field

The utility model belongs to the technical field of electrical control equipment, concretely relates to cubical switchboard.

Background

At present, as a high-voltage switch cabinet needs more space to realize a five-prevention interlocking function, namely, a security protection structure for preventing a handcart of an on-load push-pull circuit breaker, preventing a circuit breaker from being mistakenly separated and closed, preventing a circuit breaker from being closed when an earthing switch is positioned at a closed position, preventing the circuit breaker from being mistakenly inserted into an on-load compartment and the like is designed in the high-voltage switch cabinet. Therefore, the high-voltage switch cabinet is generally large in size, and miniaturization of the high-voltage switch cabinet is difficult to achieve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a switch cabinet has not only realized "five prevent" interlocking function, has still reduced high tension switchgear's whole volume.

A first aspect of the present disclosure provides a switchgear, comprising:

a cabinet body;

the cabinet door is movably arranged on the cabinet body, the cabinet door can open or close the cabinet body, and the cabinet door is provided with a matching part;

the ground disconnecting link is arranged on the cabinet body and provided with a rotating shaft, and the rotating shaft can rotate in the process of switching on or switching off the ground disconnecting link;

the interlocking mechanism comprises a gear set, an interlocking part and a limiting part, the interlocking part is connected with the rotating shaft through the gear set, the interlocking part can synchronously rotate with the rotating shaft under the action of the gear set, the limiting part is connected with the interlocking part, and the limiting part can be switched to a locking position or a releasing position when the interlocking part rotates; wherein the content of the first and second substances,

the limiting part can be clamped with the matching part when the ground disconnecting link is in a disconnecting state so as to be located at the locking position, and the limiting part can be separated from the matching part when the ground disconnecting link is in a closing state so as to be located at the releasing position.

In an exemplary embodiment of the disclosure, the mating portion includes a main body portion, a clamping portion and a connecting portion, the main body portion and the clamping portion are disposed opposite to each other, the connecting portion is connected between the main body portion and the clamping portion, the main body portion and the clamping portion are disposed at an interval to form a clamping groove, wherein,

when the limiting piece is positioned at the locking position, the limiting piece is positioned in the clamping groove,

when the limiting piece is located at the release position, the limiting piece is located outside the clamping groove.

In an exemplary embodiment of the present disclosure, when the ground disconnecting link is switched between opening and closing, the limiting member and the interlocking member rotate coaxially; wherein, the first and the second end of the pipe are connected with each other,

the limiting piece is also provided with an avoidance notch;

when the limiting piece is located at the locking position, the clamping part and the main body part are arranged opposite to the limiting piece along the axis direction of the limiting piece;

when the limiting part is located at the release position, the clamping part is arranged corresponding to the avoiding notch along the axis direction of the limiting part.

In an exemplary embodiment of the present disclosure, the gear set includes a first gear and a second gear, the first gear being in mesh with the second gear;

the interlocking piece comprises a lock rod and a mounting seat, one end of the lock rod is connected with the mounting seat and can rotate relative to the mounting seat, and the limiting piece is connected with the lock rod; the other end of the lock rod is connected with the first gear and can rotate along with the first gear, and the mounting seat is connected with the cabinet body;

the rotating shaft is connected with the second gear, and the second gear can rotate along with the rotating shaft.

In an exemplary embodiment of the present disclosure, a moving direction of the first gear intersects a moving direction of the second gear.

In an exemplary embodiment of the present disclosure, the gear set further includes a third gear disposed opposite the first gear, and the second gear is meshingly connected between the first gear and the third gear, wherein,

the third gear is mounted on the cabinet body and can rotate along with the first gear and the second gear.

In an exemplary embodiment of the disclosure, the first gear, the second gear and the third gear are all spiral bevel gears, the number of teeth of the first gear is equal to that of the third gear, and the number of teeth of the second gear is greater than that of the teeth of the first gear.

In an exemplary embodiment of the present disclosure, a positioning structure is connected to the mounting seat;

when the limiting part is located at the release position, the positioning structure is connected with the limiting part in a clamping manner, and the ground disconnecting link cannot be switched to a disconnecting link state from a switching-on state.

In an exemplary embodiment of the disclosure, when the limiting member is located at the releasing position, the positioning structure is located in the avoiding notch; when the limiting part is located at the locking position, the positioning structure is located outside the avoiding gap.

In an exemplary embodiment of the disclosure, the positioning structure includes a positioning element and an elastic restoring element, the positioning element is movably connected to the mounting base, the elastic restoring element is installed between the positioning element and the mounting base, so that the positioning element can be switched between a first position and a second position,

when the positioning piece is positioned at the first position, at least part of the positioning piece is positioned in the avoidance notch;

when the positioning piece is located at the second position, the positioning piece is elastically abutted against the limiting piece.

The beneficial effect of this scheme of disclosure:

the switch cabinet is connected between a rotating shaft of the ground disconnecting link and the interlocking piece through the gear set, and the gear set is driven to rotate through the ground disconnecting link in the switching-on or switching-off process, so that the interlocking piece rotates. After the locating part is connected with the interlocking part, the interlocking part can be driven to switch between a locking position and a releasing position. The limiting piece can be clamped with the matching part of the cabinet door when the ground knife gate is in a switching-off state, namely, the cabinet door cannot be opened, so that the cabinet door is in a locking position; when the grounding knife switch is in a closing state, the grounding knife switch is separated from the matching part of the cabinet door, so that the grounding knife switch is in a release position, namely, the cabinet door can be opened, and finally, the five-prevention interlocking function of the switch cabinet is realized.

And, need not to form the interlocking relation through cabinet door initiative and interlocking device and earthing knife-switch, reduced the design degree of difficulty, finally, through the direct transmission drive power of gear train, practiced thrift the cost, still make whole interlocking device simple structure, occupation space is little, has also reduced the whole volume of cubical switchboard promptly.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows, or in part will be obvious from the description, or may be learned by practice of the disclosure.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

Fig. 1 shows a schematic partial structure diagram of a switch cabinet according to an embodiment of the disclosure;

FIG. 2 illustrates an enlarged schematic view at A in FIG. 1 of an embodiment of the present disclosure;

FIG. 3 illustrates an enlarged schematic view at B in FIG. 1 of an embodiment of the present disclosure;

FIG. 4 is a schematic diagram illustrating a position relationship between the limiting member and the engaging portion when the limiting member is in the locking position according to the embodiment of the disclosure;

FIG. 5 is a schematic diagram illustrating another perspective of FIG. 4 in an embodiment of the present disclosure;

FIG. 6 is a schematic diagram illustrating a position relationship between the limiting member and the engaging portion when the limiting member is at the releasing position according to the embodiment of the disclosure;

FIG. 7 illustrates an enlarged, partial, schematic structural view of FIG. 6 in an embodiment of the present disclosure;

FIG. 8 is a schematic diagram illustrating another perspective of FIG. 6 in an embodiment of the present disclosure;

FIG. 9 shows a schematic perspective view of an interlock member in an embodiment of the present disclosure;

FIG. 10 illustrates a perspective view of a mount in an embodiment of the disclosure;

fig. 11 shows a schematic structural diagram of another view of fig. 1 in an embodiment of the present disclosure.

Description of reference numerals:

11. a cabinet body; 12. a cabinet door; a. an instrument room; b. a circuit breaker handcart room; c. a bus bar chamber; d. a cable chamber; 13. a ground disconnecting link; 131. a rotating shaft; 14. a gear set; 141. a first gear; 142. a second gear; 143. a third gear; 15. an interlock member; 151. a lock lever; 152. a mounting base; 1521. a first mounting plate; 1522. a second mounting plate; 1523. a third mounting plate; 153. a positioning structure; 1531. a positioning member; 1532. a first ring table; 1533. a second ring table; 1534. an elastic reset member; 16. a limiting member; 16b, a first surface; 16a, a second surface; 101. avoiding the notch; 17. a fitting portion; 171. a main body part; 172. a fastening part; 173. a connecting portion; 102. a clamping groove.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

In the present disclosure, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present disclosure, "a plurality" means two or more unless specifically limited otherwise.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the embodiments of the disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and the like. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.

Referring to fig. 1 to 11, a switch cabinet is provided in the embodiment of the present disclosure.

Alternatively, the switch cabinet is a miniaturized high voltage switch cabinet of 12kV, for example.

It should be understood that a 12kV miniaturized high voltage switchgear (e.g., a complete set of switchgear for 12kV three-phase ac 50Hz single bus and single bus sectionalizing system) can be widely used in indoor power distribution rooms, building underground power distribution rooms, and other places with limited space. The high-voltage switch can be used as a substitute product of an SF6 insulating high-voltage cabinet in places with strict requirements on environmental protection. Therefore, the method really achieves low consumption, high environmental protection, safety and convenience. In addition, in the aspect of energy saving, compared with a similar high-voltage switch cabinet KYN-28, the volume is reduced by about 40%, so that consumption of steel, copper bars and the like is reduced, and energy consumption is saved and intensively utilized to a certain extent.

As shown in fig. 1 and 11, in some embodiments, a switchgear includes a cabinet body 11 and a cabinet door 12.

Optionally, the shell of the switch cabinet is mainly made of aluminum-zinc-coated steel plates with strong corrosion resistance, and is formed by bending and assembling through CNC (computer numerical control) machine tool machining; the cabinet body 11 is of an assembled structure and is formed by connecting a rivet nut, a high-strength bolt and a self-plugging rivet, so that the cabinet is simple and convenient to mount, attractive in appearance and capable of improving production efficiency.

In addition, the switch cabinet comprises a low-voltage compartment and a high-voltage compartment, wherein the low-voltage compartment is an independent unit, is completely separated from the high-voltage compartment of the switch device, and has the functions of shock resistance and fire resistance. The cabinet door 12 and the cabinet body 11 can be made of cold-rolled steel plates, and the surfaces of the cabinet door and the cabinet body are made to be impact-resistant and corrosion-resistant by a plastic spraying process after purification and corrosion prevention treatment, so that the appearance is attractive.

Furthermore, the whole switch cabinet is composed of two parts, namely a cabinet body 11 and a central-positioned extractable part (namely a handcart), the cabinet body 11 is divided into four independent compartments, and the four independent compartments are provided with overhead incoming and outgoing lines, cable outgoing lines and other functional schemes, and can become power distribution devices with various schemes after being arranged and combined.

As shown in fig. 11, the main electrical components of the switchgear cabinet have their own separate compartments, as illustrated: instrument room a, circuit breaker handcart room b, generating line room c, cable chamber d. The protection grade among the compartments reaches IP2X; except the instrument chamber a, the other three high-pressure chambers are respectively provided with a pressure relief channel.

Optionally, a pressure relief device is arranged above the circuit breaker handcart room b, the bus chamber c and the cable chamber d, when an internal fault arc occurs on a circuit breaker handcart of the circuit breaker handcart room b or a bus of the bus chamber c, the internal air pressure of the switch cabinet rises along with the occurrence of the arc, a special sealing ring arranged on the cabinet door 12 seals the cabinet door 12, and a pressure relief metal plate arranged at the top of the cabinet body 11 is automatically opened to release pressure and exhaust gas, so that the safety of an operator and the safety of the switch cabinet are ensured.

It should be understood that when the circuit breaker handcart of the circuit breaker handcart room b is removed, the valve is automatically closed, and the switch device still maintains the protection level of IP 2X.

As shown in fig. 1 to 9, in some embodiments, the switch cabinet further includes a ground switch 13 mounted on the cabinet body 11.

Illustratively, the ground switch 13 has a rotating shaft 131, and the rotating shaft 131 can rotate during the closing or opening process of the ground switch 13.

It should be understood that the ground switch 13 is a safety mechanism installed in the cabinet 11 instead of the ground wire. According to the requirement of five prevention, the ground disconnecting link 13 can be closed, namely switched on, only when equipment in the switch cabinet is overhauled and a breaker handcart and an isolating switch in the switch cabinet are disconnected, which is equivalent to a grounding wire. When the switch cabinet is in normal operation, the ground switch 13 must be disconnected, i.e. opened.

In some embodiments, the switch cabinet further includes an interlocking mechanism, the interlocking mechanism includes a gear set 14, an interlocking member 15 and a limiting member 16, the interlocking member 15 is connected with the rotating shaft 131 through the gear set 14, the interlocking member 15 can rotate synchronously with the rotating shaft 131 under the action of the gear set 14, the limiting member 16 is connected with the interlocking member 15, and the limiting member 16 can be switched to a locking position or a releasing position when the interlocking member 15 rotates.

Further, the cabinet door 12 is hinged with the cabinet 11 to be able to open or close the cabinet 11, and the cabinet door 12 has a fitting portion 17.

It should be understood that the limiting member 16 can be engaged with the engaging portion 17 to be in the locking position when the ground switch 13 is in the opening state. The limiting member 16 can be separated from the matching portion 17 when the ground switch 13 is in a closed state, so that the ground switch is in a release position.

In the embodiment of the present disclosure, the switch cabinet is connected between the rotating shaft 131 of the ground disconnecting link 13 and the interlocking member 15 through the gear set 14, and the gear set 14 is driven to rotate by the ground disconnecting link 13 in the switching-on or switching-off process, so that the interlocking member 15 rotates, and after the limiting member 16 is connected with the interlocking member 15, the switch cabinet can be switched between the locking position and the releasing position under the driving of the interlocking member 15. So that the limiting member 16 can be engaged with the engaging portion 17 of the cabinet door 12 when the disconnecting link 13 is in the opening state, so as to be in the locking position; when the ground knife switch 13 is in a closing state, the ground knife switch is separated from the matching part 17 of the cabinet door 12 so as to be in a release position, and finally the five-prevention interlocking function of the switch cabinet is realized. And, need not to form interlocking relation through cabinet door 12 initiative and interlocking device and ground switch 13, reduced the design degree of difficulty, finally, through the direct transmission drive power of gear train 14, practiced thrift the cost, still make whole interlocking device simple structure, occupation space is little, has also reduced the whole volume of cubical switchboard promptly.

In some embodiments, the matching portion 17 includes a main body portion 171, an engaging portion 172 and a connecting portion 173, the main body portion 171 is disposed opposite to the engaging portion 172, the connecting portion 173 is connected between the main body portion 171 and the engaging portion 172, and the main body portion 171 and the engaging portion 172 are disposed at an interval to form the card slot 102.

Illustratively, the retaining member 16 is positioned within the slot 102 when in the locked position; when the limiting member 16 is in the releasing position, it is located outside the slot 102.

It should be understood that when the ground switch 13 is in the open state, the limiting member 16 is in the locking position. At this time, if the disconnecting link 13 is not switched from the opening state to the closing state, when the cabinet door 12 is opened, the slot walls of the limiting member 16 and the slot 102 interfere with each other, that is, the limiting member 16 limits the movement of the fitting portion 17, so that the fitting portion 17 of the cabinet door 12 is always in the engaging state with the limiting member 16, and the cabinet door 12 cannot be opened. When the local disconnecting link 13 is switched from the disconnecting state to the closing state, and the cabinet door 12 is opened, because the limiting member 16 is located outside the slot 102, the limiting member 16 does not interfere with the slot wall of the slot 102, that is, the limiting member 16 does not limit the movement of the fitting portion 17, so that the fitting portion 17 of the cabinet door 12 is separated from the limiting member 16, and the cabinet door 12 can be opened.

In some embodiments, when the ground switch 13 is switched between opening and closing, the limiting member 16 and the interlocking member 15 rotate coaxially.

As shown in fig. 7, in some embodiments, the limiting member 16 includes a first surface 16b and a second surface 16a, which are disposed opposite to each other, when the limiting member 16 is in the locking position, the engaging portion 172 can abut against the first surface 16b, and the main body portion 171 can also selectively abut against the second surface 16 a; or, in case it is ensured that the cabinet door 12 cannot be opened; the engaging portion 172 may not contact the first surface 16b, and the main body 171 may not contact the second surface 16 a.

Alternatively, the limiting member 16 may be moved by the interlocking member 15 to move away from the slot 102 when in the release position.

Optionally, the limiting member 16 is further provided with an avoiding notch 101, and when the limiting member 16 is located at the locking position, the engaging portion 172 and the main body portion 171 are disposed opposite to the limiting member 16 along the axial direction of the limiting member 16; when the stopper 16 is at the release position, the engaging portion is provided along the axial direction of the stopper 16 corresponding to the escape notch 101.

It should be understood that, when the door 12 is opened, the engaging portion 172 can move from one side of the first surface 16b to one side of the second surface 16a along the axial direction of the limiting member 16 through the avoiding notch 101; that is, the engaging portion 172 does not contact and interfere with the first surface 16b, and the body portion 171 does not contact and interfere with the second surface 16 a. When the door 12 is closed, if the door 12 is pulled, the engaging portion 172 abuts against the first surface 16b to interfere with the door 12, so that the door 12 cannot be opened.

In some embodiments, the position-limiting member 16 has a disk shape, and the disk-shaped position-limiting member 16 is recessed from the edge toward the center of the circle to form an avoiding gap 101. When the interlocking member 15 is connected to the disc and the interlocking member 15 is coaxially disposed with the disc, the limiting member 16 coaxially rotates with the interlocking member 15, and at this time, the limiting member 16 and the interlocking member 15 hardly displace when the earthing switch 13 is switched between opening and closing.

It should be understood that, if it is ensured that the limiting member 16 and the interlocking member 15 are not displaced, so that the limiting member 16 can be switched between the releasing position and the locking position, it is not necessary to reserve a part of space in the cabinet 11 for avoiding the displacement of the limiting member 16 and the interlocking member 15, and therefore, when the disconnecting switch 13 is switched between the disconnecting switch and the closing switch, the limiting member 16 coaxially rotates along with the interlocking member 15, and almost no displacement occurs, so that the space utilization rate of the switch cabinet can be further improved.

As shown in fig. 3, in some embodiments, the gear set 14 includes a first gear 141, a second gear 142, and a third gear 143, the first gear 141, the second gear 142, and the third gear 143 intermesh.

Further, the interlocking part 15 further includes a lock rod 151, one end of the lock rod 151 is connected to the limiting part 16, and the other end of the lock rod 151 is connected to the first gear 141 and can rotate with the first gear 141.

Illustratively, the second gear 142 is in meshing connection between the first gear 141 and the third gear 143; the first gear 141 and the third gear 143 can rotate in synchronization with the second gear 142, the rotation shaft 131 is connected to the second gear 142, and the second gear 142 can rotate along the rotation shaft 131. The third gear 143 is disposed opposite to the first gear 141, and the third gear 143 is mounted on the cabinet 11 and can rotate with the first gear 141 and the second gear 142.

The lock lever 151 rotates coaxially with the first gear 141, and the rotation shaft 131 rotates coaxially with the second gear 142.

It should be understood that the linkage between the knife switch 13 and the limiting member 16 is realized by the gear set 14, and the structure is simple and the cost is low.

In some embodiments, the direction of movement of the first gear 141 intersects the direction of movement of the second gear 142.

Illustratively, the moving direction of the first gear 141 is perpendicular to the moving direction of the second gear 142, and the moving directions of the first gear 141 and the third gear 143 are the same.

It should be understood that, since the relative positions of the ground switch 13 and the limiting member 16 may be different in different switch cabinets, the moving direction of the first gear 141 intersects with the moving direction of the second gear 142, so that the force transmission direction can be changed, and the rotating shaft 131 of the ground switch 13 can satisfactorily drive the limiting member 16 to rotate.

Further, the third gear 143 is mounted on the cabinet 11 and can rotate with the first gear 141 and the second gear 142. Which may serve to reinforce the stability of the entire gear set 14.

As shown in fig. 10, in some embodiments, the interlocking member 15 further includes a mounting seat 152, the mounting seat 152 is connected to the cabinet 11, and an end of the lock rod 151 away from the first gear 141 is connected to the mounting seat 152 and can rotate relative to the mounting seat 152.

One end of the lock rod 151, which is far away from the first gear 141, penetrates out of the mounting seat 152 and then is connected to the limiting member 16.

It should be understood that one end of the lock rod 151 is connected to the first gear 141, one end of the lock rod 151 away from the first gear 141 is connected to the mounting seat 152, and the mounting seat 152 is connected to the cabinet 11, so that the reliability of the whole interlocking mechanism can be enhanced.

In some embodiments, the first gear 141, the second gear 142 and the third gear 143 are spiral bevel gears, the number of teeth of the first gear 141 and the third gear 143 is equal, and the number of teeth of the second gear 142 is greater than the number of teeth of the first gear 141.

It can be understood that the spiral bevel gear has high transmission efficiency, stable transmission ratio, large arc overlapping coefficient, high bearing capacity, stable and smooth transmission, reliable work, compact structure, energy and material conservation, space conservation, wear resistance, long service life and low noise.

In addition, the number of teeth of the first gear 141 and the third gear 143 is equal, and the number of teeth of the second gear 142 is greater than the number of teeth of the first gear 141, so that the stopper 16 can be switched between the locking position and the releasing position by the rotation of the rotating shaft 131.

In some embodiments, as shown in fig. 6-10, a positioning structure 153 is attached to the mounting base 152. When the limiting member 16 is at the releasing position, the positioning structure 153 is engaged with the limiting member 16, and at this time, the disconnecting link 13 cannot be switched from the closing state to the opening state.

It should be understood that, after the cabinet door 12 is opened, the ground knife gate 13 should be in a closing state, and at this time, the power supply in the switch cabinet is in a closing state, so that there is no danger when a maintenance person performs maintenance on the internal equipment of the switch cabinet. However, after the cabinet door 12 is opened, under certain specific conditions (for example, due to mechanical failure, manual operation, and the like), the ground disconnecting link 13 should be switched from the switching-on state to the switching-off state, and then the power supply in the switch cabinet is in the open state, which may cause a potential safety hazard to maintenance personnel. Therefore, the positioning structure 153 is connected to the mounting base 152, and when the limiting member 16 is located at the releasing position, the positioning structure 153 is connected to the limiting member 16 in a clamping manner, so as to prevent the limiting member 16 from rotating, further prevent the ground disconnecting link 13 from being switched from the switching-on state to the switching-off state, and ensure the safety of maintenance personnel.

In some embodiments, when the limiting member 16 is in the releasing position, the positioning structure 153 is located in the avoiding notch 101 to limit the limiting member 16 from being switched from the releasing position to the locking position, and further limit the disconnecting link 13 from being switched from the switching-on state to the switching-off state.

When the limiting member 16 is located at the locking position, the positioning structure 153 is located outside the avoiding notch 101 and elastically abuts against the first surface 16b of the limiting member 16.

It should be understood that when the cabinet door 12 is closed, the engaging portion 172 of the engaging portion 17 can move from one side of the second surface 16a to one side of the first surface 16b through the avoiding gap 101, and at the same time, the engaging portion 172 presses the positioning structure 153 to elastically deform, so as to leave the avoiding gap 101, and after the limiting member 16 is located at the locking position, the positioning structure 153 elastically abuts against the first surface 16b.

In some embodiments, the positioning structure 153 includes a positioning member 1531 and an elastic restoring member 1534, the positioning member 1531 is movably connected to the mounting base 152, and the elastic restoring member 1534 is installed between the positioning member 1531 and the mounting base 152, so that the positioning member 1531 can be switched between the first position and the second position.

The positioning element 1531 is cylindrical, and the positioning element 1531 is parallel to the axis of the locking rod 151.

It should be appreciated that when the positioning member 1531 is in the first position, at least a portion of the positioning member 1531 is disposed within the relief notch 101; when the positioning element 1531 is located at the second position, the positioning element 1531 elastically abuts against the first surface 16b of the limiting element 16 along the axial direction of the limiting element 16.

Optionally, the mounting base 152 includes a first mounting plate 1521, a second mounting plate 1522 and a third mounting plate 1523, the first mounting plate 1521 is disposed opposite to the second mounting plate 1522, and the third mounting plate 1523 is connected between the first mounting plate 1521 and the second mounting plate 1522 and forms a "U" shaped structure.

Optionally, the first mounting plate 1521 and the second mounting plate 1522 are both provided with first through holes through which the locking rod 151 passes, so that the locking rod 151 sequentially passes through the first mounting plate 1521 and the second mounting plate 1522 and then is fixedly connected to the limiting member 16. The second mounting plate 1522 is disposed near the limiting member 16.

Optionally, the first mounting plate 1521 and the second mounting plate 1522 are further provided with a second through hole for the positioning element 1531 to pass through. The positioning member 1531 is circumferentially provided with a first ring platform 1532 and a second ring platform 1533 in a radial direction thereof. The first ring platform 1532 and the second ring platform 1533 are disposed at two ends of the positioning member 1531 at an interval. After the positioning element 1531 is mounted on the mounting seat 152, one end of the positioning element 1531 extends out of the second through hole of the first mounting plate 1521, and the first loop block 1532 is located on a side of the first mounting plate 1521 away from the second mounting plate 1522, so as to limit the positioning element 1531 from moving completely from the second through hole of the first mounting plate 1521 to a position between the first mounting plate 1521 and the second mounting plate 1522; the other end of the positioning member 1531 extends out of the second through hole of the second mounting plate 1522, the first loop block 1532 is located between the first mounting plate 1521 and the second mounting plate 1522, and the elastic restoring member 1534 is installed between the first loop block 1532 and the first mounting plate 1521.

Optionally, the elastic restoring member 1534 is a spring, for example, which is sleeved on the positioning member 1531 and located between the first annular platform 1532 and the first mounting plate 1521.

It should be understood that when the position-limiting element 16 is at the locking position, and correspondingly, the positioning element 1531 is at the second position, both ends of the spring respectively elastically abut against between the first annular platform 1532 and the first mounting plate 1521, and the spring elastically deforms, and the elastic tension generated by the spring drives the first annular platform 1532 to push the positioning element 1531, so as to elastically abut against the first surface 16b of the position-limiting element 16. When the position-limiting element 16 is at the releasing position, and correspondingly, when the positioning element 1531 is at the first position, the spring returns to the elastic deformation, the elastic tension generated by the elastic deformation pushes the positioning element 1531 through the first annular platform 1532 until the positioning element 1531 moves into the avoiding notch 101, so as to limit the rotation of the position-limiting element 16, and further prevent the ground disconnecting link 13 from being switched from the switching-on state to the switching-off state.

In the description of the present specification, reference to the description of "some embodiments," "examples," or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present disclosure have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present disclosure, and therefore all changes and modifications that are intended to be covered by the claims and the specification of this disclosure are within the scope of the patent disclosure.

Claims (10)

1. A switchgear, comprising:

a cabinet body;

the cabinet door is movably arranged on the cabinet body, the cabinet door can open or close the cabinet body, and the cabinet door is provided with a matching part;

the ground disconnecting link is arranged on the cabinet body and provided with a rotating shaft, and the rotating shaft can rotate in the process of switching on or switching off the ground disconnecting link;

the interlocking mechanism comprises a gear set, an interlocking part and a limiting part, the interlocking part is connected with the rotating shaft through the gear set, the interlocking part can synchronously rotate with the rotating shaft under the action of the gear set, the limiting part is connected with the interlocking part, and the limiting part can be switched to a locking position or a releasing position when the interlocking part rotates; wherein the content of the first and second substances,

the limiting part can be clamped with the matching part when the ground disconnecting link is in a disconnecting state so as to be located at the locking position, and the limiting part can be separated from the matching part when the ground disconnecting link is in a closing state so as to be located at the releasing position.

2. The switch cabinet according to claim 1, wherein the engaging portion comprises a main body portion, a engaging portion and a connecting portion, the main body portion and the engaging portion are disposed opposite to each other, the connecting portion is connected between the main body portion and the engaging portion, the main body portion and the engaging portion are disposed at an interval to form a slot, wherein,

when the limiting piece is positioned at the locking position, the limiting piece is positioned in the clamping groove,

when the limiting piece is located at the releasing position, the limiting piece is located outside the clamping groove.

3. The switch cabinet according to claim 2, wherein the limiting member and the interlocking member rotate coaxially when the ground disconnecting link is switched between disconnecting and closing; wherein the content of the first and second substances,

the limiting piece is also provided with an avoidance notch;

when the limiting piece is located at the locking position, the clamping part and the main body part are arranged opposite to the limiting piece along the axis direction of the limiting piece;

when the limiting part is located at the release position, the clamping part is arranged corresponding to the avoiding notch along the axis direction of the limiting part.

4. The switchgear cabinet according to claim 3, wherein the gear set comprises a first gear and a second gear, the first gear being in mesh with the second gear;

the interlocking piece comprises a lock rod and a mounting seat, one end of the lock rod is connected with the mounting seat and can rotate relative to the mounting seat, and the limiting piece is connected with the lock rod; the other end of the lock rod is connected with the first gear and can rotate along with the first gear, and the mounting seat is connected with the cabinet body;

the rotating shaft is connected with the second gear, and the second gear can rotate along with the rotating shaft.

5. Switch cabinet according to claim 4, characterized in that the direction of movement of the first gear wheel intersects the direction of movement of the second gear wheel.

6. The switchgear as claimed in claim 4, wherein the gear train further comprises a third gear disposed opposite the first gear and the second gear is in meshing connection between the first gear and the third gear, wherein,

the third gear is arranged on the cabinet body and can rotate along with the first gear and the second gear.

7. The switchgear as claimed in claim 6, wherein the first gear, the second gear and the third gear are all spiral bevel gears, and the number of teeth of the first gear is equal to that of the third gear, and the number of teeth of the second gear is greater than that of the first gear.

8. The switch cabinet according to claim 4, wherein a positioning structure is connected to the mounting seat;

when the limiting part is located at the release position, the positioning structure is connected with the limiting part in a clamping mode, and the ground disconnecting link cannot be switched to the disconnecting link state from the switching-on state.

9. Switch cabinet according to claim 8,

when the limiting piece is located at the release position, the positioning structure is located in the avoidance notch;

when the limiting part is located at the locking position, the positioning structure is located outside the avoiding gap.

10. The switch cabinet of claim 9, wherein the positioning structure comprises a positioning member movably connected to the mounting base and an elastic return member mounted between the positioning member and the mounting base to enable the positioning member to be switched between a first position and a second position, wherein,

when the positioning piece is positioned at the first position, at least part of the positioning piece is positioned in the avoidance notch;

when the positioning piece is located at the second position, the positioning piece is elastically abutted against the limiting piece along the axis direction of the limiting piece.

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