CN112310836A

CN112310836A - Electrical switch cabinet

Info

Publication number: CN112310836A
Application number: CN202011037740.4A
Authority: CN
Inventors: 陈正茂; 田敬磊; 张传荣
Original assignee: Guangdong Qiujing Electrical
Current assignee: Guangdong Qiujing Electrical
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-02-02

Abstract

The invention provides an electrical switch cabinet, which comprises a cabinet body, a first rotating shaft, a cabinet door, a second rotating shaft and a nut column, the piston, first coil spring and push rod, opening one side of the cabinet body is equipped with protruding border, be equipped with first inner chamber and second inner chamber in the protruding border, the one end of second pivot rotates with the lateral wall of first inner chamber to be connected, the other end and nut post threaded connection, the one end fixed connection of piston and nut post, the inner wall sliding seal of piston and first inner chamber is connected, first inner chamber passes through the through-hole intercommunication with the second inner chamber, the piston, first inner chamber, form a sealed cavity between the push rod, it has lubricating grease to fill in the sealed cavity, the one end of first coil spring and the lateral wall fixed connection of first inner chamber, the one end fixed connection of the other end and push rod, the one end of push rod and the inner wall sliding seal of through-hole are connected, the one end of first pivot is equipped with the. The invention can limit the position of the cabinet door, and is convenient for technicians to open the cabinet door.

Description

Electrical switch cabinet

Technical Field

The invention relates to the technical field of switch cabinets, in particular to an electrical switch cabinet.

Background

The switch cabinet is an electrical device, the external line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a branch control switch, and each branch is arranged according to the requirement. The electrical switch cabinet mainly functions to open, close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system, and the internal components of the electrical switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like.

Due to maintenance and cleaning requirements, the doors of electrical switchgear cabinets need to be opened and closed. But the cabinet body and the door body of present electric switch cabinet are generally through hinge connection, when cleaning or maintaining electric switch cabinet internal component, the cabinet door can autogiration close even, influences cleanness and maintenance progress, and its structure remains to be improved.

Disclosure of Invention

Based on this, in order to solve the problem that the door of the prior electric switch cabinet can automatically rotate or even close when being cleaned or maintained, and the cleaning and maintenance progress is influenced, the invention provides an electric switch cabinet, and the specific technical scheme is as follows:

an electrical switch cabinet comprises a cabinet body, a first rotating shaft and a cabinet door, wherein an inward protruding edge is arranged on one side of an opening of the cabinet body, a slot is formed in the protruding edge, the cabinet door is rotatably connected with the slot through the first rotating shaft, the electrical switch cabinet further comprises a second rotating shaft, a nut column, a piston, a first spiral spring and a push rod, a first inner cavity and a second inner cavity are arranged in the protruding edge, one end of the second rotating shaft is rotatably connected with a side wall, far away from the cabinet door, of the first inner cavity, the other end of the second rotating shaft extends into the first inner cavity and is in threaded connection with the nut column, the piston is fixedly connected with one end, far away from the second rotating shaft, of the nut column, the piston is in sliding sealing connection with the inner wall of the first inner cavity, and the first inner cavity is communicated with the second inner cavity through a through hole, the piston first inner chamber form a sealed cavity between the push rod, it has lubricating grease to fill in the sealed cavity, first coil spring's one end with first inner chamber is kept away from the lateral wall fixed connection of second inner chamber, first coil spring's the other end with the one end fixed connection of push rod, the one end of push rod with the inner wall sliding seal of through-hole connects, the one end of first pivot stretch into in the second inner chamber and be equipped with the other end assorted draw-in groove of push rod.

The other end of the second rotating shaft is in threaded connection with the nut column, and one end of the nut column is fixedly connected with the piston, so that the piston can be driven to move back and forth along the side wall of the first inner cavity by rotating the second rotating shaft. And first coil spring set up at the lateral wall of first inner chamber with between the one end of push rod, the one end of push rod and the inner wall sliding seal of through-hole are connected, the one end of first pivot be equipped with the other end assorted draw-in groove of push rod, it has lubricating grease to fill in the sealed cavity, through the lateral wall round trip movement of drive piston along first inner chamber, can make the push rod slide from top to bottom along the inner wall of through-hole, and then make the other end card of push rod go into or follow among the draw-in groove break away from in the draw-in groove to prescribe a limit to the position of first pivot and cabinet door, make things convenient for the technical staff to open the cabinet door, clean and maintain the electrical component in the electrical switchgear.

Optionally, the nut column is a press-riveting nut column.

Optionally, the clamping groove is cross-shaped.

Optionally, the clamping groove is in a regular hexagon shape.

Optionally, a switch handle is arranged on the cabinet door.

Optionally, the electrical switch cabinet further comprises a spring lock installed in the side wall of the cabinet door far away from the first inner cavity, the spring lock comprises an inner lock cylinder, and one end of the second rotating shaft is fixedly connected with the inner lock cylinder.

Optionally, the cylinder lock further includes an outer lock cylinder, a second spiral spring, an outer cylinder and an inner cylinder, wherein the outer lock cylinder is provided with at least one outer cylinder hole, the inner lock cylinder is provided with an inner cylinder hole matched with the outer cylinder hole, the inner lock cylinder is sleeved in the outer lock cylinder, the second spiral spring and the outer cylinder are installed in the outer cylinder hole, one end of the second spiral spring is in contact with the outer cylinder hole, the side wall of the inner lock cylinder is far away from the outer cylinder hole, the other end of the second spiral spring is in contact with one end of the outer cylinder, and the inner cylinder is installed in the inner cylinder hole.

Optionally, the electrical switch cabinet further comprises a key matched with the pin tumbler lock.

Optionally, the pin tumbler lock is made of an aluminum alloy material.

Optionally, the bottom of the cabinet body is provided with a rubber foot pad.

Drawings

The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.

Fig. 1 is a schematic diagram of an overall structure of an electrical switchgear according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic diagram of an overall structure of an electrical switchgear according to an embodiment of the present invention;

fig. 4 is a schematic view of an overall structure of a pin tumbler lock of an electrical switch cabinet according to an embodiment of the present invention.

Description of reference numerals:

1. a cabinet body; 2. a first rotating shaft; 3. a cabinet door; 4. a second rotating shaft; 5. a nut post; 6. a piston; 7. a first coil spring; 8. a push rod; 9. a raised edge; 10. grooving; 11. a first lumen; 12. a second lumen; 13. a through hole; 14. an inner lock cylinder; 15. an outer lock cylinder; 16. a second coil spring; 17. an outer pin; 18. an inner marble; 19. an outer bullet hole; 20. an inner ball hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.

As shown in fig. 1 and 2, an electrical switch cabinet in an embodiment of the present invention includes a cabinet body 1, a first rotating shaft 2, a cabinet door 3, a second rotating shaft 4, a nut column 5, a piston 6, a first coil spring 7, and a push rod 8, wherein an inward protruding edge 9 is disposed on an opening side of the cabinet body 1, a slot 10 is disposed on the protruding edge 9, and the cabinet door 3 is rotatably connected to the slot 10 through the first rotating shaft 2. A first inner cavity 11 and a second inner cavity 12 are arranged in the protruding edge 9, one end of the second rotating shaft 4 is rotatably connected with the side wall of the cabinet door 3 far away from the first inner cavity 11, the other end of the second rotating shaft 4 extends into the first inner cavity 11 and is in threaded connection with the nut post 5, the piston 6 is fixedly connected with one end of the nut post 5 far away from the second rotating shaft 4, the piston 6 is in sliding sealing connection with the inner wall of the first inner cavity 11, the first inner cavity 11 is communicated with the second inner cavity 12 through a through hole 13, a sealed cavity is formed among the piston 6, the first inner cavity 11 and the push rod 8, lubricating grease is filled in the sealed cavity, one end of the first spiral spring 7 is fixedly connected with the side wall of the first inner cavity 11 far away from the second inner cavity 12, and the other end of the first spiral spring 7 is fixedly connected with one end of the push rod 8, one end of the push rod 8 is connected with the inner wall of the through hole 13 in a sliding and sealing manner, and one end of the first rotating shaft 2 extends into the second inner cavity 12 and is provided with a clamping groove (not shown in the figure) matched with the other end of the push rod 8. By filling the sealing chamber with lubricating grease, it can be ensured that the piston 6 slides smoothly along the side wall of the first inner cavity 11 and the push rod 8 along the inner wall of the through hole 13.

Since the other end of the second rotating shaft 4 is in threaded connection with the nut post 5, and one end of the nut post 5 is fixedly connected with the piston 6, the piston 6 can be driven to move back and forth along the inner wall of the first inner cavity 11 by rotating the second rotating shaft 4. And first coil spring 7 set up the lateral wall at first inner chamber 11 with between the one end of push rod 8, the one end of push rod 8 and the inner wall sliding seal of through-hole 13 are connected, the one end of first pivot 2 be equipped with the other end assorted draw-in groove of push rod 8, it has lubricating grease to fill in the sealed cavity, through drive piston 6 along the inner wall round trip movement of first inner chamber 11, can make push rod 8 slide from top to bottom along the inner wall of through-hole 13, and then make push rod 8's the other end card go into perhaps follow among the draw-in groove break away from in the draw-in groove to prescribe a limit to the position of first pivot 2 and cabinet door 3, make things convenient for the technical staff to open cabinet door 3, clean and maintain the electric elements in the electric switch cabinet.

When the other end of the push rod 8 is clamped into the clamping groove, the first spiral spring 7 is in a stretching state, and the elastic force of the first spiral spring can enable the push rod 8 to keep a trend of moving towards the first inner cavity 11. When the first rotating shaft 2 is rotated and the nut stud 5 and the piston 6 are driven to move in a direction away from the first spiral spring 7, the push rod 8 moves towards the first inner cavity 11 under the action of the elastic force of the first spiral spring 7, and the other end of the push rod 8 is separated from the clamping groove. At this moment, open cabinet door 3 to certain angle to rotate first rotation once more, the drive nut post 5 and piston 6 toward being close to first coil spring 7 direction removes, through lubricating grease drive push rod 8 in the sealed cavity removes toward second inner chamber 12 direction, and then makes push rod 8's the other end card go into in the draw-in groove, can prescribe a limit to the position of cabinet door 3, make things convenient for the technical staff to clean or operation such as maintenance change to the inside electrical component of electrical switchgear.

In one embodiment, when the other end of the push rod 8 is snapped into or disengaged from the snap groove, the first helical spring 7 is always in a stretched state. When the nut column 5 and the piston 6 are driven to move in the direction away from the first spiral spring 7 by rotating the first rotating shaft 2, the push rod 8 always keeps a trend of moving towards the first inner cavity 11 under the elastic force action of the first spiral spring 7, so that the push rod 8 can be smoothly separated from the clamping groove to open the cabinet door 3.

In one embodiment, as shown in fig. 3 and 4, the electrical switch cabinet further includes a pin tumbler lock installed in the side wall of the first inner cavity 11 away from the cabinet door 3, the pin tumbler lock includes an inner lock cylinder 14, an outer lock cylinder 15, a second spiral spring 16, an outer pin 17, and an inner pin 18, the other end of the second rotating shaft 4 is fixedly connected with the inner lock cylinder 14, and one end of the second rotating shaft 4 is rotatably connected with the side wall of the first inner cavity 11 away from the cabinet door 3 through the inner lock cylinder 14. The outer lock cylinder 15 is provided with at least one outer marble hole 19, the inner lock cylinder 14 is provided with an inner marble hole 20 matched with the outer marble hole 19, the inner lock cylinder 14 is sleeved in the outer lock cylinder 15, the second spiral spring 16 and the outer marble 17 are installed in the outer marble hole 19, one end of the second spiral spring 16 is in contact with the side wall, far away from the inner lock cylinder 14, of the outer marble hole 19, the other end of the second spiral spring 16 is in contact with one end of the outer marble 17, and the inner marble 18 is installed in the inner marble hole 20.

In one embodiment, the electrical switchgear further comprises a key matching the pin tumbler lock.

Utilize key and pellet shot from a slingshot tool to lock, can close cabinet door 3, prevent that non-technical personnel from opening electrical switchgear at will, improve electrical switchgear's security performance. The spring lock is arranged on the side wall of the first cavity far away from the cabinet door 3, the structure is ingenious and simple, and the angle position of the cabinet door 3 can be well locked.

The specific sizes of the inner lock cylinder 14, the outer lock cylinder 15, the second spiral spring 16, the outer pin 17, the inner pin 18 and the key are conventional technical means in the field, and can be set by those skilled in the art as required, so that detailed description is omitted here.

In one embodiment, the nut post 5 is a clinch nut post.

In one embodiment, the slot is cross-shaped. Therefore, the nut column 5 and the piston 6 are driven to move towards the direction close to the first spiral spring 7 by rotating the first rotating shaft 2, and then the other end of the push rod 8 is driven to be inserted into the clamping groove, so that the cabinet door 3 can be limited to three angles of 0 degree, 90 degrees and 180 degrees.

In one embodiment, the slot has a regular hexagon shape. In this way, by rotating the first rotating shaft 2, the nut column 5 and the piston 6 are driven to move toward the first coil spring 7, and then the other end of the push rod 8 is driven to be inserted into the slot, so that the cabinet door 3 can be limited to three angles of 0 degree, 60 degrees, 120 degrees and 180 degrees.

In one embodiment, a switch handle is provided on the cabinet door 3 to facilitate the opening and closing of the cabinet door 3 by a technician.

In one embodiment, the pin tumbler lock is made of an aluminum alloy material, so that the weight of the whole electric switch cabinet is reduced, and technicians can conveniently move and carry the electric switch cabinet.

In one embodiment, rubber pads are fixedly installed at the bottom of the cabinet body 1 to prevent the electrical switch cabinet from sliding and reduce the vibration to which the electrical switch cabinet is subjected.

In one embodiment, the push rod 8 is a thermal link, the fusing temperature of the thermal link is 65-120 degrees, and when an electrical circuit fault occurs inside the electrical switch cabinet to cause a fire or the heat dissipation inside the electrical switch cabinet is poor to cause the temperature inside the cabinet to be too high, and the temperature of the cabinet body 1 is higher than the fusing temperature of the thermal link, the thermal link is fused by heating. At this moment, the thermal link no longer restricts the position of first pivot 2 and cabinet door 3, and the technical staff can open cabinet door 3 very conveniently as required and carry out ventilation cooling to the electrical switchgear, perhaps close cabinet door 3 to reach the mesh that utilizes cabinet door 3 isolated electrical switchgear inside air and make the inside flame of the cabinet body 1 extinguish.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An electrical switch cabinet comprises a cabinet body, a first rotating shaft and a cabinet door, wherein one side of an opening of the cabinet body is provided with an inward protruding edge, the protruding edge is provided with a slot, the cabinet door is rotatably connected with the slot through the first rotating shaft, and the electrical switch cabinet is characterized by further comprising a second rotating shaft, a nut column, a piston, a first spiral spring and a push rod, a first inner cavity and a second inner cavity are arranged in the protruding edge, one end of the second rotating shaft is rotatably connected with the side wall, far away from the cabinet door, of the first inner cavity, the other end of the second rotating shaft extends into the first inner cavity and is in threaded connection with the nut column, the piston is fixedly connected with one end, far away from the second rotating shaft, of the nut column, the piston is in sliding sealing connection with the inner wall of the first inner cavity, and the first inner cavity is communicated with the second inner cavity through a through hole, the piston first inner chamber form a sealed cavity between the push rod, it has lubricating grease to fill in the sealed cavity, first coil spring's one end with first inner chamber is kept away from the lateral wall fixed connection of second inner chamber, first coil spring's the other end with the one end fixed connection of push rod, the one end of push rod with the inner wall sliding seal of through-hole connects, the one end of first pivot stretch into in the second inner chamber and be equipped with the other end assorted draw-in groove of push rod.

2. The electrical switchgear of claim 1 wherein said nut stud is a standoffs.

3. An electrical switchgear cabinet as claimed in claim 2, wherein said slots are cross-shaped.

4. An electrical switchgear as claimed in claim 2, wherein said slots are regular hexagons.

5. An electrical switchgear cabinet as claimed in claim 3 or 4, characterized in that the cabinet door is provided with a switch handle.

6. The electrical switchgear of claim 5, further comprising a pin tumbler lock mounted in the side wall of the first interior chamber remote from the cabinet door, the pin tumbler lock including an inner cylinder, one end of the second shaft being fixedly connected to the inner cylinder.

7. The electrical switch cabinet according to claim 6, wherein the pin tumbler lock further comprises an outer lock cylinder, a second coil spring, an outer pin tumbler and an inner pin tumbler, wherein at least one outer pin tumbler hole is formed in the outer lock cylinder, an inner pin tumbler hole matched with the outer pin tumbler hole is formed in the inner lock cylinder, the inner lock cylinder is sleeved in the outer lock cylinder, the second coil spring and the outer pin tumbler are installed in the outer pin tumbler hole, one end of the second coil spring is in contact with the side wall of the outer pin tumbler hole, which is far away from the inner lock cylinder, the other end of the second coil spring is in contact with one end of the outer pin tumbler, and the inner pin tumbler is installed in the inner pin tumbler hole.

8. The electrical switchgear of claim 7 further comprising a key that mates with the pin tumbler lock.

9. The electrical switchgear of claim 8 wherein said tumbler locks are made of aluminum alloy material.

10. The electrical switchgear of claim 9 wherein the bottom of said cabinet body is fitted with rubber feet.