CN112271629B - Low-voltage drawer type switch cabinet - Google Patents

Low-voltage drawer type switch cabinet Download PDF

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Publication number
CN112271629B
CN112271629B CN202011190996.9A CN202011190996A CN112271629B CN 112271629 B CN112271629 B CN 112271629B CN 202011190996 A CN202011190996 A CN 202011190996A CN 112271629 B CN112271629 B CN 112271629B
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CN
China
Prior art keywords
drawer
sleeve
sliding
cabinet body
groove
Prior art date
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Active
Application number
CN202011190996.9A
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Chinese (zh)
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CN112271629A (en
Inventor
袁涛
彭信尧
曹健
廖勇
曾芎
刘兵
袁野
周科
高歌
李维维
田元丰
樊力瑞
杨国富
蒋跃精
王涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Wangbian Electric Group Corp ltd
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Chongqing Wangbian Electric Group Corp ltd
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Priority to CN202011190996.9A priority Critical patent/CN112271629B/en
Publication of CN112271629A publication Critical patent/CN112271629A/en
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Publication of CN112271629B publication Critical patent/CN112271629B/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00Switchgear having carriage withdrawable for isolation
    • H02B11/12Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
    • H02B11/127Withdrawal mechanism
    • H02B11/133Withdrawal mechanism with interlock
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00Switchgear having carriage withdrawable for isolation
    • H02B11/02Details

Abstract

The invention belongs to the technical field of switch cabinet devices, and particularly relates to a low-voltage drawer type switch cabinet, which comprises a cabinet body and a drawer; the drawer is provided with a propelling mechanism; sliding cylinders are arranged on two sides of the rear side wall of the drawer; a piston is connected on the sliding cylinder in a sliding manner, a fixed rod is fixed on the piston, mounting seats are fixed on the fixed rod, one of the mounting seats is provided with an incoming line moving contact, and the other mounting seat is provided with an outgoing line moving contact; the rear side wall of the drawer is also provided with a sleeve, and a sealing plate and an elastic piece are connected in the sleeve in a sliding way; an incoming line static contact matched with the incoming line moving contact, an outgoing line static contact matched with the outgoing line moving contact and a top column of which one end can extend into the sleeve are arranged in the cabinet body; a pipeline is connected between the sleeve and the sliding cylinder, the pipeline is connected to one end, close to the mounting seat, of the sliding cylinder, and the moving speed of the sealing plate is larger than that of the piston. In this scheme, can effectively solve when the pull drawer make components such as movable contact, quiet contact take place the problem of damaging easily.

Description

Low-voltage drawer type switch cabinet
Technical Field
The invention belongs to the technical field of switch cabinet devices, and particularly relates to a low-voltage drawer type switch cabinet.
Background
The low-voltage switch cabinet is suitable for industries such as power plants, petroleum, chemical industry, metallurgy, textile, high-rise buildings and the like, and is used for power transmission, power distribution and electric energy conversion. The low-voltage switch cabinet is divided into a fixed type and a draw-out type according to the structural mode, and the fixed type can meet the requirement that each electrical appliance element is reliably fixed at a determined position in the cabinet body; the draw-out type is composed of a fixed cabinet body and a movable device part provided with main electrical elements such as a switch and the like, the movable part needs to be portable when moved and replaced, the positioning needs to be reliable after the movable part is moved, and drawers of the same type and specification can be reliably interchanged.
In the existing low-voltage drawer type switch cabinet, most of drawers are directly pushed in or pulled out by an operator, applied acting force is difficult to control when the operator pushes the drawers, and the movement speed of the drawers is too high due to the overlarge applied acting force, so that the moving contact and the fixed contact are connected or separated too fast, and the contacts are easy to collide and damage. Moreover, for a drawer with a large module, if an operator pushes the drawer violently, the drawer is likely to collide with the cabinet violently, and parts of the components are damaged.
Disclosure of Invention
The invention aims to provide a low-voltage drawer type switch cabinet to solve the problem that movable contacts, static contacts and other elements are easy to damage when a drawer is pulled out.
In order to achieve the purpose, the scheme of the invention is as follows: the low-voltage drawer type switch cabinet comprises a cabinet body and a drawer capable of being pulled relative to the cabinet body; the drawer is provided with a propelling mechanism; sliding cylinders are arranged on two sides of the rear side wall of the drawer; a piston is connected on the sliding cylinder in a sliding manner, a fixed rod which penetrates through the sliding cylinder and is connected with the sliding cylinder in a sealing manner is fixed on the piston, mounting seats positioned outside the sliding cylinder are fixed on the fixed rod, one of the mounting seats is provided with an incoming line moving contact, and the other mounting seat is provided with an outgoing line moving contact; a sleeve is further arranged on the rear side wall of the drawer, and hydraulic oil is filled in the sleeve; the sleeve is internally and slidably connected with a sealing plate and an elastic piece for resetting the sealing plate; the inner wall of the sleeve is provided with a limiting groove, and the sealing plate is provided with a connecting block which is connected in the limiting groove in a sliding manner; an incoming line static contact matched with the incoming line moving contact, an outgoing line static contact matched with the outgoing line moving contact and a top column of which one end can extend into the sleeve are arranged in the cabinet body; a pipeline is connected between the sleeve and the sliding cylinder, the pipeline is connected to one end, close to the mounting seat, of the sliding cylinder, and the moving speed of the sealing plate is larger than that of the piston.
The working principle of the scheme is as follows:
when the drawer enters the cabinet body, the drawer is pushed to move towards one side of the cabinet body through the pushing mechanism. When the drawer is close to the internal portion of cabinet, the sleeve on the drawer embolias the fore-set, under the effect of fore-set, the closing plate slides along the sleeve inner wall and extrudes the hydraulic oil in the sleeve gradually, hydraulic oil passes through in the pipeline gets into the slide cartridge gradually, the mount pad on the piston drive fore-set moves to drawer one side under the effect of hydraulic oil, the direction of motion of mount pad is opposite with the direction of motion of drawer, and the speed of motion of mount pad is less than the speed of motion of drawer, be equivalent to the mount pad on the whole and to cabinet internal portion one side slow movement. When the drawer is completely closed in the cabinet body and the sealing plate moves to the limit position, the mounting seat also moves to a proper position along with the piston, and the incoming line moving contact and the incoming line static contact on the mounting seat and the outgoing line moving contact and the outgoing line static contact on the mounting seat are in good contact fit. When the drawer is pulled out from the cabinet body, the pushing mechanism is operated to enable the drawer to move towards one side far away from the cabinet body, the sleeve and the top column are gradually far away from each other, the sealing plate gradually moves towards one side far away from the drawer under the action of the elastic piece, hydraulic oil gradually flows back into the sleeve, the piston and the mounting seat move towards one side far away from the drawer at the moment, the moving direction of the mounting seat is opposite to that of the drawer, the moving speed of the mounting seat is slower than that of the drawer, the mounting seat integrally and the mounting seat slowly move towards one side far away from the cabinet body, and an incoming line moving contact and an incoming line static contact on the mounting seat are in slow contact-disengaging fit with an outgoing line static contact.
The beneficial effect of this scheme lies in:
1. when the cabinet body is to be closed completely in the cabinet body, the top column is in contact with the sealing plate in the sleeve, so that hydraulic oil slowly flows out, the moving speed of the drawer is effectively slowed down by the hydraulic oil in the sleeve, the stress between the drawer and the cabinet body is effectively buffered, and the probability of collision damage of elements in the drawer is reduced.
2. When the drawer is driven to move, when the inlet wire moving contact and the inlet wire fixed contact on the mounting seat and the outlet wire moving contact and the outlet wire fixed contact on the mounting seat are in contact fit, the moving speed of the mounting seat can be effectively reduced on the premise of not influencing the overall moving speed of the drawer, so that the moving contact and the fixed contact can be slowly and stably jointed or separated, and the probability of damage of the contact is reduced.
Optionally, a connecting seat is arranged on the bottom plate of the drawer, and a roller is rotatably connected to the connecting seat; the cabinet body is provided with a slide rail for the movement of the idler wheels. The arrangement of the idler wheels and the slide rails enables the drawer to move better when the drawer is pulled and pulled. Meanwhile, the slide rail has the functions of guiding and positioning the drawer, so that the inlet moving contact and the inlet static contact as well as the outlet moving contact and the outlet static contact can be well matched when the drawer is pushed.
Optionally, the sleeve is fixed between the two slide drums. The sleeve sets up between two slide drums, the atress between the buffering cabinet body that can be better and the drawer.
Optionally, the pushing mechanism comprises a mounting bracket arranged on the drawer bottom plate and a screw rod rotatably connected to the mounting bracket, and the mounting bracket is positioned at one side close to the drawer panel; the cabinet body is provided with a push rod, the upper end of the push rod can extend into the spiral groove of the screw rod and is matched with the spiral groove of the screw rod; one end of the screw rod is connected with a driving piece, and the driving piece penetrates through a panel of the drawer. The drawer is required to be closed on the cabinet body, when the drawer is located at a working position, the drawer firstly extends into the cabinet body, the drawer is pushed to slowly slide towards the inner part of the cabinet body, and when the screw rod is in contact with the push rod, the drawer cannot continuously move under the blocking of the push rod. At the moment, the screw rod is rotated towards the fixed direction through the driving piece and pushes the drawer forwards gently, the upper end of the pushing rod enters the spiral groove of the screw rod, the screw rod continues to rotate, the drawer moves towards the inside of the cabinet body under the combined action of the screw rod and the pushing rod, after the pushing rod is disengaged from the spiral groove of the screw rod, the drawer is completely closed in the cabinet body, and the drawer is located at the working position. Set up advancing mechanism in this scheme, after the cabinet body is stretched into to most structure of drawer, the lead screw contacts with the pushing ram, operates advancing mechanism this moment and enables comparatively steady, the slow removal of drawer, avoids the drawer and the component on the cabinet body to be used for violent impact and takes place to damage.
Optionally, the top pillar is rotatably connected to the cabinet body, a moving groove is formed in the top pillar and comprises a strip-shaped groove and an arc-shaped groove, the strip-shaped groove is axially distributed along the top pillar, the arc-shaped groove is circumferentially distributed along the top pillar, and the arc-shaped groove is communicated with one end, close to the cabinet body, of the strip-shaped groove; a bulge capable of sliding along the moving groove is arranged in the sleeve; a driven gear is arranged on the top column; one end of the screw rod facing the cabinet body is connected with a rotating shaft, and a driving gear is arranged on the rotating shaft; when the drawer is completely closed in the cabinet body, the spiral groove of the screw rod is disengaged from the propelling column, and the driving gear can be meshed with the driven gear at the moment.
When the drawer is gradually close to the inside of the cabinet body by operating the propelling mechanism, the driving gear on the rotating shaft gradually moves to one side of the driven gear. Meanwhile, the top column is gradually sleeved in the sleeve, the bulge on the sleeve extends into the strip-shaped groove of the top column, and the bulge slides along the strip-shaped groove; the top pillar is also gradually brought into contact with the sealing plate, so that the sealing plate slides along the inner wall of the sleeve. When the closing plate moved extreme position (the connecting block was at the tip of spacing groove), at this moment, the arch moved the tip in bar groove and was located the coplanar with the arc wall, and the drawer also is closed completely in the cabinet is internal (the drawer is located operating position), driving gear and driven gear contact meshing, and the helicla flute and the propulsion post of lead screw break away from the cooperation. The lead screw is continuously driven to rotate, the drawer can be kept static, the rotating shaft rotates along with the lead screw, the ejection column rotates under the transmission action of the driving gear and the driven gear, the protrusion on the ejection column enters the arc-shaped groove, and when the protrusion is clamped in the arc-shaped groove, the lead screw stops moving. Advancing mechanism not only can order about the drawer steady movement in this scheme, advancing mechanism's lead screw can also regard as fore-set pivoted driving piece. After the helicla flute of lead screw and propulsion post break away from the cooperation, utilize the idle running of lead screw to make the fore-set rotate smoothly to make protruding block in the arc wall, protruding and arc wall block, sleeve, closing plate, drawer isotructure homoenergetic obtain fine relatively fixed, exert the pulling force to the drawer this moment and also can't make the drawer break away from the cabinet body, carried out the locking to the cabinet body in other words, made the stable operating position that is located of drawer, need not to set up locking mechanism alone and fix the drawer.
Optionally, a fixed magnet positioned in the arc-shaped groove is arranged on the top column; the inner wall of the sleeve is provided with a sliding groove, the bulge is connected in the sliding groove in a sliding manner, and a reset piece for enabling the bulge to be contracted in the sliding groove is arranged in the sliding groove; the protrusion is provided with an absorption block which can be attracted by the fixed magnet. Because careless collision happens, the top pillar probably takes place small rotation in carelessness, leads to when the top pillar stretches into in the sleeve, and the arch can not get into in the bar groove smoothly. In this scheme, set up the arch into the form of accomodating at the spout, when the fore-set stretches into in the sleeve, because the arch is accomodate in the spout, in the fore-set can not hinder automatic stretching into the sleeve, when the closing plate can not continue to remove, the fore-set moved arch and arc wall and is located the coplanar position. Order about the lead screw and rotate, drive the fore-set through gear drive's mode and rotate, rotate the arch when the fore-set and when the arc groove is relative, the piece that inhales on the arch stretches into the arc groove under the effect of fixed magnet and contacts with the moving magnet of arc groove, can take place the sound of "Da" during the contact, after hearing the sound of "Da" the stall lead screw can, the drawer has obtained better locking this moment.
Optionally, the suction block is an iron block. The fixed magnet has better attraction to the iron block.
Optionally, the attraction block is a moving magnet. The fixed magnet and the movable magnet can generate larger attraction force, so that the protrusion can well overcome the action of the reset piece and extend out of the sliding groove.
Optionally, the driving gear and the driven gear are both helical gears. The driving gear and the driven gear are set to be helical gears, so that the driving gear and the driven gear can be meshed better.
Optionally, the one end that the cabinet body was kept away from to the fore-set is equipped with the rubber pad. The rubber pad is arranged, so that noise generated when the ejection column is in contact with the sealing plate can be reduced, and stress between the ejection column and the sealing plate is buffered.
Drawings
Fig. 1 is a cross-sectional view of a low and medium voltage drawer type switch cabinet in a top view according to an embodiment of the present invention;
FIG. 2 is a sectional view of a drawer pulled out of a cabinet according to an embodiment of the present invention;
fig. 3 is a structural diagram of a screw rod and a mounting bracket in a propulsion mechanism according to an embodiment of the invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a cabinet body 10, an incoming line static contact 11, an outgoing line static contact 12, a drawer 20, a mounting bracket 30, a screw rod 31, a rotating shaft 32, a pushing rod 33, a sliding cylinder 40, a piston 41, a fixing rod 42, a mounting seat 43, an incoming line moving contact 44, an outgoing line moving contact 45, a sleeve 50, a limiting groove 51, a sealing plate 52, an elastic part 53, a reset part 54, a protrusion 55, a top column 60, a strip-shaped groove 61, a fixed magnet 62, a driven gear 63 and a pipeline 70.
Example one
The embodiment is basically as shown in fig. 1 and fig. 2: the low-voltage drawer type switch cabinet comprises a cabinet body 10 and a drawer 20 which can be pulled relative to the cabinet body 10. 4 connecting seats are fixedly connected to the bottom plate of the drawer 20 through screws, the 4 connecting seats are respectively located on four sides of the bottom plate of the drawer, and rollers are rotatably connected to the connecting seats. Two sliding rails are fixedly installed on the cabinet body 10, and rollers on the left side and the right side of the drawer bottom plate slide on different sliding rails.
And sliding cylinders 40 are fixedly arranged on both sides of the rear side wall of the drawer 20, and one end of each sliding cylinder 40 close to the drawer 20 is open. The sliding cylinder 40 is slidably and hermetically connected with a piston 41, a fixed rod 42 which penetrates through the sliding cylinder 40 and can be hermetically connected with the sliding cylinder 40 is fixed on the piston 41, mounting seats 43 which are positioned outside the sliding cylinder 40 are welded on the fixed rod 42, an incoming line moving contact 44 is fixedly mounted on one mounting seat 43, and an outgoing line moving contact 45 is fixedly mounted on the other mounting seat 43. A sleeve 50 is further fixed on the rear side wall of the drawer 20, the sleeve 50 is fixed between the two sliding cylinders 40, one end of the sleeve 50, which is far away from the drawer 20, is open, and hydraulic oil is filled in the sleeve 50. A sealing plate 52 is slidably and hermetically connected in the sleeve 50, and an elastic member 53 for restoring the sealing plate 52 is further disposed in the sleeve 50, in this embodiment, the elastic member 53 is a compression spring, one end of the compression spring is connected to the inner wall of the sleeve 50, and the other end of the compression spring is connected to the sealing plate 52. The inner wall of the sleeve 50 is provided with a limiting groove 51 which is distributed along the axial direction of the sleeve 50, a connecting block which is connected in the limiting groove 51 in a sliding manner is fixed on the sealing plate 52, and the sealing plate 52 can only slide in a fixed range under the combined action of the limiting groove 51 and the connecting block. An incoming line static contact 11 and an outgoing line static contact 12 are fixedly installed in the cabinet body 10, the incoming line static contact 11 can be matched with an incoming line moving contact 44, and the outgoing line static contact 12 can be matched with an outgoing line moving contact 45. The cabinet 10 is rotatably connected with a top pillar 60, the top pillar 60 can extend into the sleeve 50 and contact with the sealing plate 52, and a rubber pad is adhered to one end of the top pillar 60 close to the sealing plate 52. A conduit 70 is connected between the side of the sleeve 50 close to the drawer 20 and the side of the slide 40 close to the mounting seat 43, and hydraulic oil in the sleeve 50 can be supplied to the slide 40 through the conduit 70. The two slide cylinders 40 have a combined cross-sectional area larger than that of the sleeve 50, and the seal plate 52 moves at a speed higher than that of the piston 41.
The drawer 20 is provided with a pushing mechanism, and the drawer 20 can be moved in the cabinet 10 through the pushing mechanism. Referring to fig. 3, the pushing mechanism includes a mounting bracket 30 and a lead screw 31, and the mounting bracket 30 is fixed to the lower sidewall of the drawer 20 by a fastening member such as a screw. The screw rod 31 is rotatably connected to a mounting bracket 30, and the mounting bracket 30 is positioned at one side close to the drawer panel. The cabinet body 10 is welded with a push rod 33, the upper end of the push rod 33 can extend into the spiral groove of the screw rod 31, and the push rod 33 is matched with the spiral groove of the screw rod 31. One end of the screw rod 31 is connected with a driving piece, the driving piece penetrates through a panel of the drawer 20, and the screw rod 31 can rotate towards the fixed direction through the driving piece.
The top pillar 60 is provided with a moving groove, the moving groove comprises a strip-shaped groove 61 axially distributed along the top pillar 60 and an arc-shaped groove circumferentially distributed along the top pillar 60, and one end of the arc-shaped groove is communicated with one end of the strip-shaped groove 61 close to the cabinet body 10; the sleeve 50 is provided with a projection 55 slidable along the moving groove. The top post 60 is welded with a driven gear 63, one end of the screw rod 31 facing the cabinet body 10 is connected with a rotating shaft 32, the rotating shaft 32 is welded with a driving gear capable of being meshed with the driven gear 63, and the driving gear and the driven gear 63 are helical gears. When the drawer 20 is completely closed in the cabinet 10, the spiral groove of the screw rod is disengaged from the pushing column, and the driving gear is engaged with the driven gear 63. A fixed magnet 62 positioned in the arc-shaped groove is fixed on the top column 60; the inner wall of the sleeve 50 is provided with a sliding groove, the bulge 55 is connected in the sliding groove in a sliding manner, the sliding groove is internally provided with a resetting piece 54 for enabling the bulge 55 to be contracted in the sliding groove, one end of the resetting piece 54 is connected to the bulge 55, the other end of the resetting piece 54 is connected to the inner wall of the sliding groove, and the bulge 55 is contracted in the sliding groove under the action of the resetting piece 54 when the resetting piece is not acted by other external force; in the present embodiment, the reset member 54 is a tension spring. An attraction block which can be attracted by the fixed magnet 62 is fixed on the protrusion 55, and the attraction block is an iron block.
When the drawer 20 needs to be closed on the cabinet 10 and the drawer 20 is located at the working position, the drawer 20 is firstly extended into the cabinet 10 to push the drawer 20 to slowly slide towards the inside of the cabinet 10, and when the lead screw 31 contacts with the push rod 33, the drawer 20 cannot move continuously under the blocking of the push rod 33. At this time, the screw rod 31 is rotated towards a fixed direction through the driving part and the drawer 20 is slightly pushed forwards, the upper end of the pushing rod 33 enters the spiral groove of the screw rod 31, the screw rod 31 is continuously rotated, the drawer 20 moves towards the inside of the cabinet 10 under the combined action of the screw rod 31 and the pushing rod 33, after the pushing rod 33 is disengaged from the spiral groove of the screw rod 31, the drawer 20 is completely closed in the cabinet 10, and the drawer 20 is located at a working position.
When the drawer 20 is gradually moved toward the inside of the cabinet 10 by operating the push mechanism, the driving gear of the rotary shaft 32 gradually moves toward the driven gear 63. At the same time, the sleeve 50 gradually sleeves the top post 60, and the top post 60 gradually comes into contact with the sealing plate 52, so that the sealing plate 52 slides along the inner wall of the sleeve 50. When the sealing plate 52 moves to the limit position (the connecting block is clamped at the end of the limiting groove 51), at the moment, the protrusion 55 moves to be located on the same plane as the arc-shaped groove, the drawer 20 is also completely closed in the cabinet body 10 (the drawer 20 is located at the working position), the driving gear is in contact engagement with the driven gear 63, and the spiral groove of the lead screw is disengaged from the pushing column. The screw rod 31 is continuously driven to rotate, the drawer 20 can be kept static, the rotating shaft 32 rotates along with the screw rod 31, the top column 60 rotates under the transmission action of the driving gear and the driven gear 63, when the top column 60 rotates to the state that the protrusion 55 is opposite to the arc-shaped groove, the iron block on the protrusion 55 extends into the arc-shaped groove under the action of the fixed magnet and contacts with the moving magnet of the arc-shaped groove, the 'Da' sound can be generated during the contact, and the screw rod 31 stops rotating after the 'Da' sound is heard. Protruding 55 and arc groove block, structures homoenergetic such as sleeve 50, closing plate 52, drawer 20 obtain fine relatively fixed, exert pulling force also can't make drawer 20 break away from the cabinet body 10 to drawer 20 this moment, have carried out the locking to the cabinet body 10 in other words, make stable the operating position that is located of drawer 20, need not to set up locking mechanism alone and fix drawer 20.
Example two
The present embodiment is different from the first embodiment in that: in this embodiment, the attraction block is a moving magnet. Compare in the iron plate, can produce bigger appeal between fixed magnet 62 and the moving magnet for protruding 55 can be fine overcome reset the effect of piece 54 and stretch out the spout, and specific effect is better than the iron plate.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.

Claims (10)

1. The low-voltage drawer type switch cabinet comprises a cabinet body and a drawer capable of being pulled relative to the cabinet body; the method is characterized in that: the drawer is provided with a propelling mechanism; sliding cylinders are arranged on two sides of the rear side wall of the drawer; a piston is connected on the sliding barrel in a sliding manner, a fixed rod which penetrates through the sliding barrel and is connected with the sliding barrel in a sealing manner is fixed on the piston, mounting seats positioned outside the sliding barrel are fixed on the fixed rod, an incoming line moving contact is arranged on one mounting seat, and an outgoing line moving contact is arranged on the other mounting seat; a sleeve is further arranged on the rear side wall of the drawer, and hydraulic oil is filled in the sleeve; the sleeve is internally and slidably connected with a sealing plate and an elastic piece for resetting the sealing plate; the inner wall of the sleeve is provided with a limiting groove, and the sealing plate is provided with a connecting block which is connected in the limiting groove in a sliding manner; an incoming line static contact matched with the incoming line moving contact, an outgoing line static contact matched with the outgoing line moving contact and a top column of which one end can extend into the sleeve are arranged in the cabinet body; a pipeline is connected between the sleeve and the sliding cylinder, the pipeline is connected to one end, close to the mounting seat, of the sliding cylinder, and the moving speed of the sealing plate is larger than that of the piston.
2. The low voltage drawer switch cabinet of claim 1, wherein: a connecting seat is arranged on a bottom plate of the drawer, and rollers are rotatably connected to the connecting seat; the cabinet body is provided with a slide rail for the movement of the idler wheels.
3. The low voltage drawer switch cabinet of claim 2, wherein: the sleeve is fixed between the two sliding barrels.
4. The low voltage drawer switch cabinet of claim 3, wherein: the pushing mechanism comprises a mounting bracket arranged on the bottom plate of the drawer and a screw rod rotatably connected to the mounting bracket, and the mounting bracket is positioned at one side close to the panel of the drawer; the cabinet body is provided with a push rod, the upper end of the push rod can extend into the spiral groove of the screw rod and is matched with the spiral groove of the screw rod; one end of the screw rod is connected with a driving piece, and the driving piece penetrates through a panel of the drawer.
5. The low voltage drawer switch cabinet of claim 4, wherein: the top column is rotationally connected to the cabinet body, a moving groove is formed in the top column and comprises a strip-shaped groove and an arc-shaped groove, the strip-shaped groove is axially distributed along the top column, the arc-shaped groove is circumferentially distributed along the top column, and the arc-shaped groove is communicated with one end, close to the cabinet body, of the strip-shaped groove; a bulge capable of sliding along the moving groove is arranged in the sleeve; a driven gear is arranged on the top column; one end of the screw rod facing the cabinet body is connected with a rotating shaft, and a driving gear is arranged on the rotating shaft; when the drawer is completely closed in the cabinet body, the spiral groove of the screw rod is disengaged from the propelling column, and the driving gear can be meshed with the driven gear at the moment.
6. The low voltage drawer switch cabinet of claim 5, wherein: the top column is provided with a fixed magnet positioned in the arc-shaped groove; the inner wall of the sleeve is provided with a sliding groove, the bulge is connected in the sliding groove in a sliding manner, and a reset piece for enabling the bulge to be contracted in the sliding groove is arranged in the sliding groove; the protrusion is provided with an absorption block which can be attracted by the fixed magnet.
7. The low voltage drawer switch cabinet of claim 6, wherein: the suction block is an iron block.
8. The low voltage drawer switch cabinet of claim 6, wherein: the attraction block is a moving magnet.
9. The low voltage drawer switch cabinet of claim 6, wherein: the driving gear and the driven gear are both helical gears.
10. The low voltage drawer switch cabinet of any one of claims 1 to 9, wherein: one end of the top column far away from the cabinet body is provided with a rubber pad.
CN202011190996.9A 2020-10-30 2020-10-30 Low-voltage drawer type switch cabinet Active CN112271629B (en)

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CN112271629B true CN112271629B (en) 2022-07-05

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Publication number Priority date Publication date Assignee Title
CN113363859A (en) * 2021-05-14 2021-09-07 靖江森源电气有限公司 GCS low pressure pull-out type cubical switchboard that can playback automatically

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