High-low voltage power distribution cabinet

Abstract

The invention discloses a high-low voltage power distribution cabinet which comprises a limiting mechanism and further comprises a cabinet body, a bottom plate, a sliding base assembly, a cabinet door assembly, a transmission mechanism, a locking mechanism and a driven mechanism. The cabinet body is provided with a handcart chamber, the bottom plate is arranged in the handcart chamber, the sliding seat assembly is slidably arranged on the bottom plate, and the cabinet door assembly is rotatably arranged on the handcart chamber; the transmission mechanism, the locking mechanism and the driven mechanism are rotatably arranged on the cabinet body, the sliding seat assembly slides outwards to drive the locking mechanism to rotate forwards in a one-way mode through the transmission mechanism, and then the locking mechanism is made to be away from the cabinet door assembly; the cabinet door assembly rotates outwards to independently drive the driven mechanism to rotate, and the cabinet door assembly rotates inwards to drive the locking mechanism to rotate reversely in one direction through the driven mechanism, so that the locking mechanism is inserted into the cabinet door. According to the high-low voltage power distribution cabinet, the cabinet door can be closed by rotating the cabinet door inwards to the bottom under the condition that the handcart type circuit breaker can be moved only when the cabinet door is closed.

Description

Technical Field

[0001] The invention belongs to the technical field of power grid electricity safety, and in particular relates to a high and low voltage distribution cabinet. Background Art

[0002] As the name implies, high and low voltage distribution cabinets are distribution equipment used for power distribution, control, metering and cable connection in the power supply system. Generally, power supply bureaus and substations use high voltage switch cabinets, which are then led to low voltage distribution cabinets through transformer step-down and low voltage side. The low voltage distribution cabinets are then connected to the distribution boards, control boxes, and switch boxes of various power users. The equipment in the cabinets is a distribution device that meets the design functional requirements by assembling some switches, circuit breakers, fuses, buttons, indicator lights, instruments, wires and other protective devices into one. Among them, the main components of the above-mentioned high voltage switch cabinet have their own independent compartments, namely: trolley room, busbar contact (busbar room), outgoing line contact (outgoing line room), cable room, and instrument room. The above-mentioned trolley room is located in the front middle of the switch cabinet. The upper busbar contact of the trolley-type circuit breaker in the trolley room is inserted into the busbar room at the upper end of the rear side of the switch cabinet, and the lower busbar contact of the trolley-type circuit breaker in the trolley room is inserted into the outgoing line room at the lower end of the rear side of the switch cabinet, which is used to connect the busbar contact and the outgoing line contact to each other.

[0003] High and low voltage distribution cabinets are an important part of the power supply system. Whether their operation complies with the regulations directly affects the power supply safety and the personal safety of operators. During maintenance, it is required to keep the trolley room closed when moving the trolley circuit breaker, so as to avoid high voltage arc injury to the operator when the moving contact and the static contact of the busbar room are connected or separated from each other, or even cause electric sparks to cause fires, resulting in large-scale power safety accidents.

[0004] In order to solve this technical problem, relevant technicians have designed a power distribution cabinet as shown in CN220325106U, which, through its corresponding locking structure, requires the cabinet door to be kept closed before the trolley-type circuit breaker can be moved. However, in this solution, when closing the cabinet door, it is necessary to ensure that the cabinet door is continuously pressed against the cabinet body in order to move the trolley-type circuit breaker. For this reason, the specific operation often requires two operators, one operator to press the cabinet door against the cabinet body, and the other operator to move the trolley-type circuit breaker. This operation requires more operators, and further increases the number of personnel injuries that may be caused by the failure of the corresponding mechanical structure, and the fire that may be caused by the increase in the number of flammable materials that the operators may carry. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a high and low voltage distribution cabinet to solve the technical problem mentioned in the above background technology that the cabinet door must be closed before the trolley-type circuit breaker can be moved, and when the cabinet door is closed, it is necessary to ensure that the cabinet door continues to abut against the cabinet body.

[0006] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention includes: A high and low voltage power distribution cabinet, comprising a limit mechanism for preventing a circuit breaker from moving before a cabinet door is closed, and also comprising a cabinet body, a bottom plate, a slide assembly, a cabinet door assembly, a transmission mechanism, a locking mechanism and a driven mechanism; The cabinet body is provided with a trolley room, the bottom plate is arranged in the trolley room, the slide seat assembly is slidably arranged on the bottom plate, and the cabinet door assembly is rotatably arranged on the trolley room; The transmission mechanism, the locking mechanism and the driven mechanism are rotatably arranged on the cabinet body respectively, and the outward sliding of the slide assembly can drive the locking mechanism to rotate forwardly through the transmission mechanism in one direction, thereby making the locking mechanism move away from the cabinet door assembly; The outward rotation of the cabinet door assembly can independently drive the driven mechanism to rotate, that is, when the cabinet door assembly rotates outward, the locking mechanism remains stationary except for the rotation of the driven mechanism. When the cabinet door assembly rotates inward, the locking mechanism can be driven to reverse in one direction through the driven mechanism, so that the locking mechanism is inserted into the cabinet door.

[0007] Further, the transmission mechanism includes a first gear ring and a first one-way component; the first gear ring is rotatably connected to the cabinet body, and the sliding of the slide assembly can drive the first gear ring to rotate; a plurality of ratchet teeth are circumferentially provided on the inner side of the first gear ring, the first one-way component is coaxially arranged in the first gear ring and rotatably connected to the cabinet body, the first one-way component can drive the first gear ring to rotate in one direction, and the rotation of the first one-way component can drive the locking mechanism to rotate.

[0008] Further, the first one-way component includes a first rotating disk, a first pawl, a first spring, a first connecting rod and a first gear; the first rotating disk is rotatably connected in the first gear ring and is coaxial, the first pawl is eccentrically rotatably connected to the first rotating disk, and is connected to the first rotating disk through the first spring, and the first pawl can drive the first gear ring to rotate in one direction; one end of the first connecting rod is coaxially fixed to the first rotating disk, and the other end is coaxially fixed with the first gear, and the first gear can drive the locking mechanism to rotate.

[0009] Further, the locking mechanism includes a lead screw, a ball nut, a lock block assembly, a second gear and a third gear; the lead screw is rotatably connected to the cabinet, the ball bearing is screwed to the lead screw, the lock block assembly is arranged on the ball shaft nut, and can be inserted into the cabinet door assembly; the second gear and the third gear are respectively coaxially fixed on the lead screw, the second gear is meshed with the first gear, and the third gear can drive the driven mechanism to rotate. It should be understood that the lead screw is preferably arranged on the cabinet through a bearing, and in order to increase the installation length, a corresponding installation groove can be added to the cabinet. In addition, it should be known that the forward rotation of the lead screw drives the ball nut to descend, and the reverse rotation of the lead screw drives the ball bearing to rise.

[0010] Furthermore, the lock block assembly includes a connecting rod, a connecting spring, a lock sleeve and a telescopic rod; one end of the connecting rod is fixed on the ball nut, and the other end is slidably connected to the lock sleeve, the lock sleeve is connected to the connecting rod through the connecting spring, and the lock sleeve can be inserted into the cabinet door assembly; one end of the telescopic rod is fixed on the cabinet body, and the other end is connected to the connecting rod. The elastic margin of the lock block assembly is increased by the connecting spring, so that the lock sleeve can maintain the compression margin and continuously abut the cabinet door assembly when it is lifted and not inserted into the cabinet door assembly until it is inserted into the cabinet door assembly.

[0011] Further, the driven mechanism includes a long inner gear ring, a driven rack, an incomplete gear ring and a second one-way component; the long inner gear ring is slidably connected to the cabinet body, the driven rack is fixed on the outer side of the long inner gear ring and meshes with the second gear; the two inner straight surfaces of the long inner gear ring are oppositely provided with a plurality of gear teeth, the incomplete gear ring is rotatably connected to the cabinet body and located inside the long inner gear ring, and the incomplete gear ring can successively mesh with the two inner side gear teeth of the long inner gear ring; that is, the rotation of the incomplete gear ring can drive the long inner gear ring to reciprocate linearly. The incomplete inner gear ring is circumferentially provided with a plurality of ratchet teeth, the second one-way component is coaxially arranged in the incomplete gear ring and rotatably connected to the cabinet body, the second one-way component can unidirectionally drive the incomplete gear ring to rotate, and the rotation of the cabinet door component can drive the second one-way component to rotate.

[0012] Furthermore, the second one-way component includes a second turntable, a second pawl, a second spring, a second connecting rod, a driven disk and a driven rod; the second turntable is rotatably connected in the incomplete toothed ring and is coaxial, the second pawl is eccentrically rotatably connected to the second turntable, and is connected to the second turntable through the second spring, and the second pawl can drive the incomplete toothed ring to rotate in one direction; one end of the second connecting rod is coaxially fixed to the second turntable, and the other end is coaxially fixed to the driven disk, the driven rod is provided with a plurality of and circumferentially fixed to the driven disk, and the rotation of the driven disk can drive the cabinet door assembly to slide.

[0013] Furthermore, the cabinet door assembly includes a cabinet door body, a cabinet door connecting rod and a driving rod; the cabinet door body is rotatably connected to the cabinet body, the cabinet door connecting rod is fixed on the cabinet door, a plurality of driving rods are provided and fixed on the cabinet door connecting rod, and the driving rod can drive the driven rod to rotate with the rotation of the cabinet door body; an avoidance groove is provided on the cabinet door body, the limit groove is provided in the avoidance groove, and the lock sleeve can be inserted into the limit groove.

[0014] Furthermore, the slide assembly includes a slide body and a driving rack, the slide body is slidably connected to the base plate, and the driving rack is fixed on the slide body and can drive the transmission mechanism to rotate.

[0015] Compared with the prior art, the advantages of the present invention include: In the present application, through the transmission relationship between the transmission mechanism, the locking mechanism and the driven mechanism, the sliding seat assembly slides outward to release the restriction on the cabinet door assembly, and the cabinet door assembly can rotate outward; when the cabinet door assembly is opened outward, it does not affect the position of the locking mechanism; when the cabinet door assembly rotates inward, it can drive the locking mechanism to rotate forward to achieve the locking of the cabinet door, and the process of closing the door inward will not drive the rotation of the transmission mechanism and thus will not drive the sliding seat to move. As a result, when closing the trolley room, it can be closed by rotating inward to the end, and there is no need to make the cabinet door assembly press against the cabinet body when closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is an overall schematic diagram of a high and low voltage distribution cabinet in the present invention; Figure 2 for Figure 1The schematic diagram of the high and low voltage distribution cabinet shown is without the cabinet door body; Figure 3 It is an enlarged schematic diagram of part A; Figure 4 is a cross-sectional schematic diagram of a locking block assembly; Figure 5 A schematic diagram of a cabinet door assembly.

[0018] Reference numerals: Cabinet 1, trolley chamber 11, bottom plate 2, slide assembly 3, slide body 31, drive rack 32, cabinet door assembly 4, cabinet door body 41, avoidance groove 411, limit groove 412, cabinet door connecting rod 42, drive rod 43, transmission mechanism 5, first gear ring 51, first one-way assembly 52, first turntable 521, first pawl 522, first spring 523, first connecting rod 524, first gear 525, locking mechanism 6, wire Lever 61, ball nut 62, locking block assembly 63, connecting rod 631, connecting spring 632, locking sleeve 633, telescopic rod 634, second gear 64, third gear 65, driven mechanism 7, long inner gear ring 71, driven rack 72, incomplete gear ring 73, second one-way assembly 74, second turntable 741, second pawl 742, second spring 743, second connecting rod 744, driven disk 745, driven rod 746. DETAILED DESCRIPTION

[0019] In view of the deficiencies in the prior art, the inventor of this case has proposed the technical solution of the present invention after long-term research and extensive practice. The following will further explain the technical solution, its implementation process and principle, etc. in conjunction with the drawings in the embodiments of this application and specific implementation cases.

[0020] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, the present invention covers any substitution, modification, equivalent method and scheme made on the spirit, principle and scope of the present invention defined by the claims. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present application, "first", "second", "third" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "an" and other similar words do not indicate a quantity limitation, but indicate the existence of at least one. "Include" or "comprise" and other similar words mean that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0022] In the description of the present application, the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, when positional terms such as both sides, outside, up and down are used, it should be understood that they are only used to facilitate understanding and description, considering that the structure may be facing other positions.

[0023] In the description of this application, unless otherwise clearly specified and limited, the technical or scientific terms used should have the usual meanings understood by persons with general skills in the field to which this application belongs. Terms such as "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection, or an integrated connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] The embodiments of the present invention are intended to introduce and illustrate the structural composition of a high and low voltage distribution cabinet and the coordination relationship between the various components. Unless otherwise specified, the dimensions, materials and manufacturing processes of the various components in the high and low voltage distribution cabinet in the embodiments of the present invention can be selected according to specific circumstances and are not specifically limited or described herein.

[0025] Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the following detailed description of the present invention. For those skilled in the art, the present invention can be fully understood without the description of these details.

[0026] Please also read Figure 1-Figure 5The present embodiment provides a high and low voltage power distribution cabinet, including a limit mechanism for preventing the circuit breaker from moving before the cabinet door is closed, and also includes a cabinet body 1, a bottom plate 2, a slide assembly 3, a cabinet door assembly 4, a transmission mechanism 5, a locking mechanism 6 and a driven mechanism 7; the specific structure of the limit mechanism can refer to CN220325106U, specifically refer to the structure shown in FIG. 7 thereof, and this application will not repeat it here.

[0027] The cabinet body 1 is provided with a trolley room 11, the bottom plate 2 is provided in the trolley room 11, the slide assembly 3 is slidably provided on the bottom plate 2, and the cabinet door assembly 4 is rotatably provided on the trolley room 11; specifically, the slide assembly 3 slides linearly inward and outward directions, preferably, a guide rail is provided on the base, and a pulley structure or a pulley-like structure corresponding to the guide rail is provided on the slide assembly 3. It should also be understood that the circuit breaker is provided on the slide assembly 3, and the movement of the circuit breaker is reciprocated forward and backward through the principle of the lead screw 61. The specific structure has been extensively described in the prior art, and will not be repeated in this embodiment.

[0028] The transmission mechanism 5, the locking mechanism 6 and the driven mechanism 7 are respectively rotatably arranged on the cabinet body 1. The outward sliding of the slide assembly 3 can drive the locking mechanism 6 to rotate forward in one direction through the transmission mechanism 5, thereby making the locking mechanism 6 move away from the cabinet door assembly 4; that is, the reverse rotation of the locking mechanism 6 cannot drive the slide assembly 3 to slide through the transmission mechanism 5. After the locking mechanism 6 moves away from the cabinet door assembly 4, the cabinet door assembly 4 can rotate outward.

[0029] The cabinet door assembly 4 can rotate outwards and drive the driven mechanism 7 to rotate alone, that is, the cabinet door assembly 4 rotates outwards and the locking mechanism 6 remains stationary except for the rotation of the driven mechanism 7. The cabinet door assembly 4 can rotate inwards and drive the locking mechanism 6 to reverse in one direction through the driven mechanism 7, so that the locking mechanism 6 is inserted into the cabinet door. That is, the forward rotation of the locking mechanism 6 cannot drive the cabinet door assembly 4 to slide through the driven mechanism 7.

[0030] It should be understood that the reverse rotation of the locking mechanism 6 unlocks the cabinet door assembly 4, and the forward rotation of the locking mechanism 6 locks the cabinet door assembly 4. Specifically, the forward rotation referred to in this application is clockwise rotation, and the reverse rotation is counterclockwise rotation. In other schemes, they can also be reversed. The movement process is: when the door needs to be opened, the slide assembly 3 slides outward, driving the transmission mechanism 5 to reverse, and the transmission mechanism 5 reversely rotates to drive the locking mechanism 6 to rotate forward, thereby making the locking mechanism 6 away from the cabinet door assembly 4, and the forward rotation of the locking mechanism 6 cannot drive the cabinet door assembly 4 to slide through the driven mechanism 7, and the cabinet door assembly 4 remains stationary; when the cabinet door assembly 4 rotates outward to open the trolley chamber 11, the cabinet door assembly 4 alone drives the driven mechanism 7 to rotate forward, and the locking mechanism 6 remains stationary; when the cabinet door assembly 4 rotates inward, the cabinet door assembly 4 drives the driven mechanism 7 to reverse, and then drives the locking mechanism 6 to reverse, so that the locking mechanism 6 is inserted into the cabinet door assembly 4, and the reverse rotation of the locking mechanism 6 is difficult to drive the slide assembly 3 to slide through the transmission mechanism 5.

[0031] In the present application, through the transmission relationship between the transmission mechanism 5, the locking mechanism 6 and the driven mechanism 7, the sliding seat assembly 3 slides outward to release the restriction on the cabinet door assembly 4, and the cabinet door assembly 4 can rotate outward; when the cabinet door assembly 4 is opened outward, it does not affect the position of the locking mechanism 6; when the cabinet door assembly 4 rotates inward, it can drive the locking mechanism 6 to rotate forward to achieve the locking of the cabinet door, and the process of closing the door inward will not drive the rotation of the transmission mechanism 5 and thus will not drive the movement of the sliding seat. As a result, when closing the handcart chamber 11, it can be closed by rotating it inward to the end, and there is no need to make the cabinet door assembly 4 press against the cabinet body 1 when closing.

[0032] In other schemes, the transmission mechanism 5 includes a first gear ring 51 and a first one-way component 52; the first gear ring 51 is rotatably connected to the cabinet body 1, and the sliding of the slide assembly 3 can drive the first gear ring 51 to rotate; a plurality of ratchet teeth are circumferentially provided on the inner side of the first gear ring 51, and the first one-way component 52 is coaxially provided in the first gear ring 51 and rotatably connected to the cabinet body 1, the first one-way component 52 can drive the first gear ring 51 to rotate in one direction, and the rotation of the first one-way component 52 can drive the locking mechanism 6 to rotate.

[0033] Specifically, the outward sliding of the slide assembly 3 drives the first gear ring 51 to reverse, and the reversal of the first gear ring 51 drives the first one-way assembly 52 to reverse together with it, and the reversal of the first one-way assembly 52 drives the locking mechanism 6 to rotate forward; when the slide assembly 3 slides inward, it drives the first gear ring 51 to rotate forward, and when the first gear ring 51 rotates forward, the first one-way assembly 52 remains stationary as a whole, and thus the locking mechanism 6 remains stationary.

[0034] In other schemes, the first one-way component 52 includes a first turntable 521, a first pawl 522, a first spring 523, a first connecting rod 631524 and a first gear 525; the first turntable 521 is rotatably connected to the first gear ring 51 and is coaxial, the first pawl 522 is eccentrically rotatably connected to the first turntable 521, and is connected to the first turntable 521 through the first spring 523, the first pawl 522 can drive the first gear ring 51 to rotate in one direction; one end of the first connecting rod is coaxially fixed to the first turntable 521, and the other end is coaxially fixed with the first gear 525, and the first gear 525 can drive the locking mechanism 6 to rotate. It should be understood that the first gear 525 and the pawl can be approximately regarded as an internal ratchet and pawl mechanism. The reverse rotation of the first toothed ring 51 drives the first turntable 521 to reverse together through the abutment of the pawl by its internal ratchet teeth. Conversely, the forward rotation of the first toothed ring 51 repeatedly squeezes the pawl through its internal ratchet teeth, so that the pawl rotates alone without driving the first turntable 521 to rotate; the first pawl 522 drives the first toothed ring 51 to rotate forwardly along with the forward rotation of the first turntable 521. Conversely, when the first pawl 522 rotates reversely along with the first turntable 521, the first pawl 522 itself repeatedly rotates without driving the first toothed ring 51 to rotate.

[0035] In other schemes, the locking mechanism 6 includes a lead screw 61, a ball nut 62, a lock block assembly 63, a second gear 64 and a third gear 65; the lead screw 61 is rotatably connected to the cabinet 1, the ball bearing is screwed to the lead screw 61, the lock block assembly 63 is arranged on the ball shaft nut, and can be inserted into the cabinet door assembly 4; the second gear 64 and the third gear 65 are respectively coaxially fixed on the lead screw 61, the second gear 64 is meshed with the first gear 525, and the third gear 65 can drive the driven mechanism 7 to rotate. It should be understood that the lead screw 61 is preferably arranged on the cabinet 1 through a bearing, and in order to increase the installation length, a corresponding installation groove can be added to the cabinet 1. In addition, it should be known that the forward rotation of the lead screw 61 drives the ball nut 62 to descend, and the reverse rotation of the lead screw 61 drives the ball bearing to rise.

[0036] In other schemes, the lock block assembly 63 includes a connecting rod 631, a connecting spring 632, a lock sleeve 633 and a telescopic rod 634; one end of the connecting rod 631 is fixed on the ball nut 62, and the other end is slidably connected with the lock sleeve 633, which is connected to the connecting rod 631 through the connecting spring 632, and the lock sleeve 633 can be inserted into the cabinet door assembly 4; one end of the telescopic rod 634 is fixed on the cabinet body 1, and the other end is connected to the connecting rod 631. It should be understood that the connecting rod 631 is an L-shaped rod, and the telescopic direction of the telescopic rod 634 is the same as the lifting direction of the ball nut 62, thereby further guiding. By increasing the elastic margin of the lock block assembly 63 by connecting the spring 632, the lock sleeve 633 can maintain the compression margin when it is lifted and not inserted into the cabinet door assembly 4 and continue to abut the cabinet door assembly 4 until it is inserted into the cabinet door assembly 4. Preferably, the second inner wheel is rotatably connected to the cabinet body 1.

[0037] In other schemes, the driven mechanism 7 includes a long inner gear ring 71, a driven rack 72, an incomplete gear ring 73 and a second one-way component 74; the long inner gear ring 71 is slidably connected to the cabinet body 1, and the driven rack 72 is fixed to the outer side of the long inner gear ring 71 and meshes with the second gear 64; a plurality of gear teeth are provided on the two inner straight surfaces of the long inner gear ring 71 opposite to each other, and the incomplete gear ring 73 is rotatably connected to the cabinet body 1 and is located inside the long inner gear ring 71, and the incomplete gear ring 73 can mesh with the two inner side gear teeth of the long inner gear ring 71 respectively; that is, the rotation of the incomplete gear ring 73 can drive the long inner gear ring 71 to reciprocate in a straight line. A plurality of ratchet teeth are circumferentially arranged inside the incomplete inner toothed ring. The second one-way component 74 is coaxially arranged inside the incomplete toothed ring 73 and rotatably connected to the cabinet body 1. The second one-way component 74 can drive the incomplete toothed ring 73 to rotate in one direction. The rotation of the cabinet door component 4 can drive the second one-way component 74 to rotate.

[0038] It should be understood that the reverse rotation of the incomplete toothed ring 73 will not drive the second one-way component 74 to rotate, the reverse rotation of the second one-way component 74 drives the reverse rotation of the incomplete toothed ring 73, the forward rotation of the second one-way component 74 will not drive the forward rotation of the incomplete toothed ring 73, the outward rotation of the cabinet door component 4 drives the second one-way component 74 to rotate forward, and the inward rotation of the cabinet door component 4 drives the second one-way component 74 to reverse. Specifically, during the forward rotation of the locking mechanism 6 with the rotation of the transmission mechanism 5, the long inner toothed ring 71 is driven to slide outward, thereby driving the incomplete toothed ring 73 to rotate forward; the outward rotation of the cabinet door component 4 drives the second one-way component 74 to rotate forward, thereby stopping the incomplete toothed ring 73; the inward rotation of the cabinet door component 4 drives the second one-way component 74 to reverse, thereby driving the incomplete toothed ring 73 to reverse, thereby causing the long inner toothed ring 71 to slide inward, driving the locking mechanism 6 to reverse. It should also be understood that the locking mechanism 6 drives the long inner toothed ring 71 to slide outwards and the second one-way component 74 drives the long inner toothed ring 71 to slide inwards, respectively accounting for half of their reciprocating strokes.

[0039] In other schemes, the second one-way component 74 includes a second turntable 741, a second pawl 742, a second spring 743, a second connecting rod 744631, a driven disk 745 and a driven rod 746; the second turntable 741 is rotatably connected to the incomplete toothed ring 73 and is coaxial, the second pawl 742 is eccentrically rotatably connected to the second turntable 741, and is connected to the second turntable 741 through the second spring 743, the second pawl 742 can drive the incomplete toothed ring 73 to rotate in one direction; one end of the second connecting rod is coaxially fixed to the second turntable 741, and the other end is coaxially fixed with the driven disk 745, a plurality of driven rods 746 are provided and are circumferentially fixed to the driven disk 745, and the rotation of the driven disk 745 can drive the cabinet door assembly 4 to slide. It should be understood that the rotation direction of the ratchet teeth of the incomplete gear is opposite to that of the ratchet teeth of the first gear ring 51, and the rotation direction of the second pawl 742 is also opposite to that of the first pawl 522. The cabinet door assembly 4 slides outward to drive each driven rod 746 to rotate forward in turn, and the cabinet door assembly 4 slides inward to drive each driven rod 746 to rotate reversely in turn.

[0040] In other schemes, the cabinet door assembly 4 includes a cabinet door body 41, a cabinet door connecting rod 42 and a driving rod 43; the cabinet door body 41 is rotatably connected to the cabinet body 1, the cabinet door connecting rod 42 is fixed on the cabinet door, a plurality of driving rods 43 are provided and fixed on the cabinet door connecting rod 42, and the driving rod 43 can drive the driven rod 746 to rotate with the rotation of the cabinet door body 41; the cabinet door body 41 is provided with an avoidance groove 411, and a limiting groove 412 is provided in the avoidance groove 411, and the lock sleeve 633 can be inserted into the limiting groove 412. Specifically, the driving rod 43 pushes each driven rod 746 in turn with the rotation of the cabinet door body 41, and the interference with the transmission mechanism 5, the locking mechanism 6 and the driven mechanism 7 can be avoided through the avoidance groove 411.

[0041] The high and low voltage distribution cabinet can be closed by rotating the cabinet door inwards to the bottom, while ensuring that the cabinet door is closed before the trolley-type circuit breaker can be moved.

[0042] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, some simple deductions or substitutions can be made without departing from the concept of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A high and low voltage distribution cabinet, comprising a limit mechanism for preventing a circuit breaker from moving before the cabinet door is closed, characterized in that: It also includes a cabinet body, a bottom plate, a slide assembly, a cabinet door assembly, a transmission mechanism, a locking mechanism and a driven mechanism; The cabinet body is provided with a trolley room, the bottom plate is arranged in the trolley room, the slide seat assembly is slidably arranged on the bottom plate, and the cabinet door assembly is rotatably arranged on the trolley room; The transmission mechanism, the locking mechanism and the driven mechanism are rotatably arranged on the cabinet body respectively, and the outward sliding of the slide assembly can drive the locking mechanism to rotate forwardly through the transmission mechanism in one direction, thereby making the locking mechanism move away from the cabinet door assembly; The cabinet door assembly can rotate outwards to drive the driven mechanism to rotate alone, and the cabinet door assembly can rotate inwards to drive the locking mechanism to reverse in one direction through the driven mechanism, so that the locking mechanism is inserted into the cabinet door.

2. A high and low voltage distribution cabinet according to claim 1, characterized in that: The transmission mechanism includes a first gear ring and a first one-way component; the first gear ring is rotatably connected to the cabinet body, and the sliding of the slide assembly can drive the first gear ring to rotate; a plurality of ratchet teeth are circumferentially provided on the inner side of the first gear ring, the first one-way component is coaxially arranged in the first gear ring and rotatably connected to the cabinet body, the first one-way component can drive the first gear ring to rotate in one direction, and the rotation of the first one-way component can drive the locking mechanism to rotate.

3. A high and low voltage distribution cabinet according to claim 2, characterized in that: The first one-way component includes a first rotating disk, a first pawl, a first spring, a first connecting rod and a first gear; the first rotating disk is rotatably connected in the first gear ring and is coaxial, the first pawl is eccentrically rotatably connected to the first rotating disk, and is connected to the first rotating disk through the first spring, and the first pawl can drive the first gear ring to rotate in one direction; one end of the first connecting rod is coaxially fixed to the first rotating disk, and the other end is coaxially fixed with the first gear, and the first gear can drive the locking mechanism to rotate.

4. A high and low voltage distribution cabinet according to claim 3, characterized in that: The locking mechanism includes a lead screw, a ball nut, a locking block assembly, a second gear and a third gear; the lead screw is rotatably connected to the cabinet body, the ball bearing is threaded on the lead screw, the locking block assembly is arranged on the ball shaft nut and can be inserted into the cabinet door assembly; the second gear and the third gear are respectively coaxially fixed on the lead screw, the second gear is meshed with the first gear, and the third gear can drive the driven mechanism to rotate.

5. A high and low voltage distribution cabinet according to claim 4, characterized in that: The lock block assembly comprises a connecting rod, a connecting spring, a lock sleeve and a telescopic rod; one end of the connecting rod is fixed on the ball nut, and the other end is slidably connected to the lock sleeve in a lifting and lowering manner. The lock sleeve is connected to the connecting rod through the connecting spring, and the lock sleeve can be inserted into the cabinet door assembly; One end of the telescopic rod is fixed on the cabinet, and the other end is connected to the connecting rod.

6. A high and low voltage distribution cabinet according to claim 5, characterized in that: The driven mechanism includes a long inner gear ring, a driven rack, an incomplete gear ring and a second one-way component; the long inner gear ring is slidably connected to the cabinet body, the driven rack is fixedly arranged on the outer side of the long inner gear ring and meshes with the second gear; a plurality of gear teeth are provided on two inner straight surfaces of the long inner gear ring opposite to each other, the incomplete gear ring is rotatably connected to the cabinet body and is located inside the long inner gear ring, and the incomplete gear ring can mesh with the two inner side gear teeth of the long inner gear ring respectively in sequence; a plurality of ratchet teeth are circumferentially provided inside the incomplete inner gear ring, the second one-way component is coaxially arranged in the incomplete gear ring and rotatably connected to the cabinet body, the second one-way component can drive the incomplete gear ring to rotate in one direction, and the rotation of the cabinet door component can drive the second one-way component to rotate.

7. A high and low voltage distribution cabinet according to claim 6, characterized in that: The second one-way component includes a second rotating disk, a second pawl, a second spring, a second connecting rod, a driven disk and a driven rod; the second rotating disk is rotatably connected in the incomplete toothed ring and is coaxial, the second pawl is eccentrically rotatably connected to the second rotating disk, and is connected to the second rotating disk through the second spring, and the second pawl can drive the incomplete toothed ring to rotate in one direction; one end of the second connecting rod is coaxially fixed to the second rotating disk, and the other end is coaxially fixed to the driven disk, a plurality of driven rods are provided and circumferentially fixed to the driven disk, and the rotation of the driven disk can drive the cabinet door assembly to slide.

8. A high and low voltage distribution cabinet according to claim 7, characterized in that: The cabinet door assembly includes a cabinet door body, a cabinet door connecting rod and a driving rod; the cabinet door body is rotatably connected to the cabinet body, the cabinet door connecting rod is fixed on the cabinet door, a plurality of driving rods are provided and fixed on the cabinet door connecting rod, and the driving rod can drive the driven rod to rotate with the rotation of the cabinet door body; an avoidance groove is provided on the cabinet door body, the limit groove is provided in the avoidance groove, and the lock sleeve can be inserted into the limit groove.

9. A high and low voltage distribution cabinet according to claim 8, characterized in that: The slide assembly comprises a slide body and a driving rack. The slide body is slidably connected to the bottom plate. The driving rack is fixed on the slide body and can drive the transmission mechanism to rotate.

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