CN212392177U - Permanent magnetic mechanism circuit breaker - Google Patents
Permanent magnetic mechanism circuit breaker Download PDFInfo
- Publication number
- CN212392177U CN212392177U CN202021521754.9U CN202021521754U CN212392177U CN 212392177 U CN212392177 U CN 212392177U CN 202021521754 U CN202021521754 U CN 202021521754U CN 212392177 U CN212392177 U CN 212392177U
- Authority
- CN
- China
- Prior art keywords
- shell
- plate
- driving
- permanent magnet
- circuit breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to an electric power system power-off equipment technical field, concretely relates to permanent magnetic mechanism circuit breaker. The method comprises the following steps: casing, vacuum bubble, permanent magnetic mechanism and manual divide-shut brake mechanism, wherein: the shell is horizontally arranged, and a separation plate is horizontally welded in the middle of the shell; the vacuum bubbles are arranged on the upper surface of the shell at intervals of 3, wherein the pole pull rods of the vacuum bubbles at two ends are connected with a linkage plate; the permanent magnet mechanism is fixed on the partition plate and connected with the linkage plate; the manual opening and closing mechanism comprises a transmission shaft, a connecting bolt and a drive plate, and is in transmission connection with the permanent magnet mechanism. The utility model discloses a permanent magnetic mechanism circuit breaker has improved the reliability and the security of whole device through addding manual divide-shut brake mechanism; the consistency of the actions of switching on and switching off the circuit of the vacuum bubbles is ensured by arranging the linkage plate, so that the switching on and switching off of the whole circuit are smooth; and the whole device has simple structure, easily understood principle and stronger practicability.
Description
Technical Field
The utility model relates to an electric power system power-off equipment technical field, concretely relates to permanent magnetic mechanism circuit breaker.
Background
The permanent magnetic mechanism circuit breaker is a device capable of instantly cutting off a fault circuit on a line and protecting power supply equipment. The existing permanent magnet mechanism circuit breaker is widely applied to the field of power equipment due to the advantages of reliable performance, long service life and the like. The breaker comprises a permanent magnetic mechanism and a vacuum bubble, wherein the permanent magnetic mechanism comprises a break-brake static iron core, a close-brake static iron core, a movable iron core, a permanent magnet, a break-brake coil and a close-brake coil, the break-brake coil and the close-brake coil are arranged at two ends of the permanent magnetic mechanism, the movable iron core can be controlled to be attracted to the break-brake static iron core or the close-brake static iron core through the break-brake coil and the break-brake coil, and the movable iron core can move up and down. Chinese patent CN205230960U discloses a permanent magnet mechanism for high voltage circuit breaker. The vacuum bubble is an electric element integrating the on-off circuit, arc extinction and insulation, and is connected with the permanent magnet mechanism through an electrode pull rod of the vacuum bubble, so that the movable iron core of the permanent magnet mechanism drives the electrode pull rod to move up and down when moving up and down, and further the connection and disconnection of a power system circuit are realized.
However, the existing permanent magnet mechanism needs a standby power supply (generally a storage battery) to provide an action power supply for a mechanism coil, once a standby power supply circuit fails and cannot work, the permanent magnet mechanism cannot realize switching-off and switching-on, and potential safety hazards exist.
In addition, chinese patent CN201821426526.6 discloses a high-voltage circuit breaker based on a direct-acting permanent magnet mechanism, which realizes that one permanent magnet mechanism drives a plurality of vacuum bubbles by arranging a first cross bar and a second cross bar, thereby ensuring the high consistency of the on-off circuit of the vacuum bubbles. But the parts are more, and the assembly and the subsequent maintenance are troublesome.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a permanent magnetic mechanism circuit breaker.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a permanent magnet mechanism circuit breaker comprising: casing, vacuum bubble, permanent magnetic mechanism and manual divide-shut brake mechanism, wherein: the shell is horizontally arranged, the lower end of the shell is of a hollow rectangular structure with an opening, and a separation plate is horizontally welded in the middle of the shell; a rectangular notch is reserved on the front end face of the shell and is positioned above the partition plate; the vacuum bubble is fixed on the upper surface of the shell, and a pole pull rod of the vacuum bubble penetrates through the upper surface of the shell downwards; 3 vacuum bubbles are arranged at intervals, wherein the pole pull rod of the vacuum bubble at two ends is connected with a linkage plate; the pole rod of the middle vacuum bubble extends towards the linkage plate, and the lower end of the pole rod of the middle vacuum bubble is in threaded connection with a threaded sleeve; the permanent magnet mechanism is fixed on the partition plate and is positioned right below the middle vacuum bubble; the upper end and the lower end of the movable iron core of the permanent magnetic mechanism are respectively and correspondingly provided with a first driving shaft and a second driving shaft, the middle part of the top end of the first driving shaft is integrally formed with a connecting threaded column, and the connecting threaded column upwards penetrates through the linkage plate and then is in threaded connection with the threaded sleeve; the lower end of the second driving shaft is provided with a connecting hole; the manual opening and closing mechanism comprises a transmission shaft, a connecting bolt and a driving plate, the transmission shaft is positioned below the partition plate, the front end of the transmission shaft is rotatably connected to the front end surface of the shell, and the rear end of the transmission shaft penetrates through the rear end surface of the shell and is rotatably connected with the rear end surface of the shell; the middle part of the transmission shaft is provided with 2 driving arms at intervals, the 2 driving arms are positioned at two sides of the tail end of the second driving shaft, and the 2 driving arms are provided with sliding chutes corresponding to the connecting holes; the connecting bolt is inserted into the sliding groove and the connecting hole to connect the driving arm with the second driving shaft; the drive plate is connected to the rear end of the transmission shaft.
Preferably, the two ends of the driving plate are respectively and integrally formed with a circular ring.
Preferably, the upper end of the first driving shaft abuts against the lower surface of the linkage plate; the lower end of the threaded sleeve abuts against the upper surface of the linkage plate.
Preferably, the transmission shaft is formed by integrally forming a front end cylinder, a middle cylinder, a rear end cylinder, a limiting square column and a locking threaded column which are sequentially connected, wherein a first necked flange is sleeved on the front end cylinder, penetrates through the front end surface of the shell and abuts against the inner side of the shell; a second necked flange is sleeved on the rear end cylinder, penetrates through the rear end face of the shell and is fixed on the outer side of the shell by screws; a locking nut is connected to the locking threaded column in a threaded manner; the middle part of the driving plate is provided with a connecting column, the connecting column and the driving plate are provided with limiting holes corresponding to the limiting square columns, and the connecting column and the driving plate are sleeved on the limiting square columns.
Preferably, the outer diameters of the front end cylinder and the rear end cylinder are equal and smaller than the outer diameter of the middle cylinder.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the manual opening and closing mechanism of the utility model is in transmission connection with the permanent magnetic mechanism, when the driving plate is pulled by external force, the manual opening and closing mechanism drives the first driving shaft and the second driving shaft of the permanent magnetic mechanism to move up and down, thereby realizing closing and opening; the whole process can be completed without the participation of a standby power supply, and the reliability and the safety of the permanent magnet mechanism breaker are improved.
(2) The utility model discloses a set up the linkage board and be connected 3 vacuum bubbles with permanent magnetic mechanism transmission, the linkage board can be with 3 vacuum bubble synchronization actions moreover, the uniformity of height when having guaranteed that 3 vacuum bubbles switch on and break off the circuit makes switching on and breaking off of whole circuit comparatively smooth.
(3) The utility model discloses the ring that the both ends of drive plate set up provides stable impetus for pulling down or when upwards promoting the drive plate.
(4) The utility model discloses a permanent magnetic mechanism circuit breaker has improved the reliability and the security of whole device through the manual divide-shut brake mechanism that adds; the consistency of the actions of switching on and switching off the circuit of the vacuum bubbles is ensured by arranging the linkage plate, so that the switching on and switching off of the whole circuit are smooth; and the whole device has simple structure, fewer parts, convenient assembly and subsequent maintenance and stronger practicability.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a bottom view of FIG. 1;
fig. 4 is a schematic structural diagram of the permanent magnet mechanism of the present invention;
fig. 5 is a schematic structural diagram of the manual opening and closing brake of the present invention;
FIG. 6 is an exploded view of FIG. 5;
description of the main reference numerals:
1. a housing; 11. a partition plate; 12. a rectangular notch;
2. vacuum bubble; 21. a pole pull rod; 13. a linkage plate; 14. a threaded sleeve;
3. a permanent magnet mechanism; 311. a first drive shaft; 312. a second drive shaft; 313. connecting the threaded columns; 314. connecting holes;
4. a manual opening and closing mechanism; 41. a drive shaft; 41a, a front end cylinder; 41b, a middle cylinder; 41c, a rear end round body; 41d, limiting square columns; 41e, locking the threaded column; 42. a connecting bolt; 43. a drive plate; 431. a circular ring; 432. connecting columns; 433. a limiting hole; 44. a drive arm; 441. a chute; 45. a first necked-in flange; 46. a second necked-in flange; 47. and (6) locking the nut.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the technical personnel in the field without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case to those skilled in the art.
Referring to fig. 1 to 6, a permanent magnet mechanism circuit breaker includes: casing 1, vacuum bubble 2, permanent magnetic mechanism 3 and manual divide-shut brake mechanism 4, wherein:
the shell 1 is horizontally arranged, the shell 1 is of a hollow rectangular structure with an opening at the lower end, and a separation plate 11 is horizontally welded in the middle of the shell 1; a rectangular notch 12 is reserved on the front end face of the shell 1, and the rectangular notch 12 is positioned above the partition plate 11;
the vacuum bubble 2 is fixed on the upper surface of the shell 1, and the pole pull rod 21 of the vacuum bubble 2 downwards penetrates through the upper surface of the shell 1; 3 vacuum bubbles 2 are arranged at intervals, wherein the pole pull rod 21 of the vacuum bubbles 2 at two ends is connected with a linkage plate 13; the pole pull rod 21 of the middle vacuum bubble 2 extends towards the linkage plate 13, and the lower end of the pole pull rod 21 of the middle vacuum bubble 2 is connected with a threaded sleeve 14 in a threaded manner; as is apparent from the attached figure 2, the pole pull rod 21 of the vacuum bulb 2 is provided with threads, and the pole pull rods 21 of the vacuum bulbs 2 at two ends are fixed on the linkage plate 13 by 2 nuts after penetrating through the linkage plate 13;
the permanent magnetic mechanism 3 is fixed on the partition plate 11 and is positioned right below the middle vacuum bubble 2; a first driving shaft 311 and a second driving shaft 312 are respectively and correspondingly arranged at the upper end and the lower end of a movable iron core (not shown in the figure) of the permanent magnetic mechanism 3, a connecting threaded column 313 is integrally formed in the middle of the top end of the first driving shaft 311, and the connecting threaded column 313 upwards penetrates through the linkage plate 13 and then is in threaded connection with a threaded sleeve 14; the lower end of the second driving shaft 312 is provided with a connecting hole 314; in this embodiment, the upper end of the first driving shaft 311 abuts on the lower surface of the linkage plate 13; the lower end of the threaded sleeve 14 abuts on the upper surface of the linkage plate 13.
The manual opening and closing mechanism 4 comprises a transmission shaft 41, a connecting bolt 42 and a driving plate 43, wherein the transmission shaft 41 is positioned below the partition plate 11, the front end of the transmission shaft is rotatably connected to the front end surface of the shell 1, and the rear end of the transmission shaft penetrates through the rear end surface of the shell 1 and is rotatably connected with the rear end surface of the shell 1; the middle part of the transmission shaft 41 is provided with 2 driving arms 44 at intervals, the 2 driving arms 44 are positioned at two sides of the tail end of the second driving shaft 312, and the 2 driving arms 44 are provided with sliding grooves 441 corresponding to the positions of the connecting holes 314; the connecting bolt 42 is inserted into the sliding groove 441 and the connecting hole 314 to connect the driving arm 44 and the second driving shaft 312; the drive plate 43 is connected to the rear end of the drive shaft 41.
In the present embodiment, a ring 431 is integrally formed at each of both ends of the driving plate 43.
In the present embodiment, the specific structure of the transmission shaft 41 is: the transmission shaft 41 is formed by integrally forming a front end cylinder 41a, a middle cylinder 41b, a rear end cylinder 41c, a limit square column 41d and a locking threaded column 41e which are sequentially connected, wherein a first necked flange 45 is sleeved on the front end cylinder 41a, and the first necked flange 45 penetrates through the front end surface of the shell 1 and abuts against the inner side of the front end surface of the shell 1; a second necked flange 46 is sleeved on the rear end cylinder 41c, and the second necked flange 46 penetrates through the rear end surface of the shell 1 and is fixed on the outer side of the rear end surface of the shell 1 by screws (not shown in the figure); a locking nut 47 is connected on the locking threaded column 41e in a threaded manner; the middle part of the driving plate 43 is provided with a connecting column 432, the connecting column 432 and the driving plate 43 are provided with a limiting hole 433 corresponding to the limiting square column 41d, and the connecting column 432 is sleeved on the limiting square column 41 d. The front end cylinder 41a and the rear end cylinder 41c have the same outer diameter and are smaller than the outer diameter of the middle cylinder 41 b.
When in use, the circuit breaker of the present embodiment is placed at the corresponding position for use and should be fixed. When external standby power supply breaks down and can't provide working power supply for permanent magnetic mechanism 3, operate through manual divide-shut brake mechanism 4, specifically do: with the orientation of fig. 2 as a reference, the driving plate 43 is pulled downwards by the circular ring 431 at the right end of the driving plate 43, and when the right end of the driving plate 43 moves downwards, the driving plate drives the transmission shaft 41 connected with the driving plate and the driving arm 44 arranged on the transmission shaft 41 to move clockwise; when the driving arm 44 moves clockwise, an upward thrust is generated on the second driving shaft 312 through the connecting bolt 42, and under the action of the thrust, the movable iron core of the permanent magnet mechanism 3, the first driving shaft 311 and the second driving shaft 312 move upward together; when the first driving shaft 311 moves upwards, an upward thrust is generated on the linkage plate 13 to drive the whole linkage plate 13 to move upwards, and when the linkage plate 13 moves upwards, an upward thrust is generated on the pole pull rod 21 of the 3 vacuum bubbles 2 to complete switching on.
Similarly, the driving plate 43 is pulled downwards through the circular ring 431 at the left end of the driving plate 43, and when the left end of the driving plate 43 moves downwards, the driving shaft 41 connected with the driving plate and the driving arm 44 arranged on the driving shaft 41 are driven to move anticlockwise; when the driving arm 44 moves counterclockwise, a downward pulling force is generated on the second driving shaft 312 through the connecting bolt 42, and under the action of the pulling force, the movable iron core of the permanent magnet mechanism 3, the first driving shaft 311 and the second driving shaft 312 move downward together; when the first driving shaft 311 moves downwards, a downward pulling force is generated on the linkage plate 13 to drive the whole linkage plate 13 to move downwards, and when the linkage plate 13 moves downwards, a downward pulling force is generated on the pole rod 21 of 3 vacuum bubbles 2 to complete the brake opening.
From the above, the circuit breaker of the embodiment does not need the participation of a standby power supply in the whole process of completing switching on or switching off, so that the reliability and the safety of the circuit breaker of the permanent magnet mechanism are improved. In addition, the arrangement of the linkage plate 13 enables the vacuum bubbles 2 to conduct or break the line in a consistent manner, so that the whole line is smoothly conducted or broken.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (5)
1. A permanent magnet mechanism circuit breaker, comprising: casing, vacuum bubble, permanent magnetic mechanism and manual divide-shut brake mechanism, wherein:
the shell is horizontally arranged, the lower end of the shell is of a hollow rectangular structure with an opening, and a separation plate is horizontally welded in the middle of the shell; a rectangular notch is reserved on the front end face of the shell and is positioned above the partition plate;
the vacuum bubble is fixed on the upper surface of the shell, and a pole pull rod of the vacuum bubble penetrates through the upper surface of the shell downwards; 3 vacuum bubbles are arranged at intervals, wherein the pole pull rod of the vacuum bubble at two ends is connected with a linkage plate; the pole rod of the middle vacuum bubble extends towards the linkage plate, and the lower end of the pole rod of the middle vacuum bubble is in threaded connection with a threaded sleeve;
the permanent magnet mechanism is fixed on the partition plate and is positioned right below the middle vacuum bubble; the upper end and the lower end of the movable iron core of the permanent magnetic mechanism are respectively and correspondingly provided with a first driving shaft and a second driving shaft, the middle part of the top end of the first driving shaft is integrally formed with a connecting threaded column, and the connecting threaded column upwards penetrates through the linkage plate and then is in threaded connection with the threaded sleeve; the lower end of the second driving shaft is provided with a connecting hole;
the manual opening and closing mechanism comprises a transmission shaft, a connecting bolt and a driving plate, the transmission shaft is positioned below the partition plate, the front end of the transmission shaft is rotatably connected to the front end surface of the shell, and the rear end of the transmission shaft penetrates through the rear end surface of the shell and is rotatably connected with the rear end surface of the shell; the middle part of the transmission shaft is provided with 2 driving arms at intervals, the 2 driving arms are positioned at two sides of the tail end of the second driving shaft, and the 2 driving arms are provided with sliding chutes corresponding to the connecting holes; the connecting bolt is inserted into the sliding groove and the connecting hole to connect the driving arm with the second driving shaft; the drive plate is connected to the rear end of the transmission shaft.
2. The permanent magnet mechanism circuit breaker according to claim 1 wherein said drive plate is integrally formed with a ring at each end.
3. The permanent magnet mechanism circuit breaker according to claim 1 wherein an upper end of said first drive shaft abuts against a lower surface of said linkage plate; the lower end of the threaded sleeve abuts against the upper surface of the linkage plate.
4. The permanent magnet mechanism circuit breaker according to claim 1, wherein the transmission shaft is formed by integrally molding a front end cylinder, a middle cylinder, a rear end cylinder, a limit square column and a locking threaded column which are connected in sequence, wherein a first necked flange is sleeved on the front end cylinder, penetrates through the front end surface of the housing and abuts against the inner side of the housing; a second necked flange is sleeved on the rear end cylinder, penetrates through the rear end face of the shell and is fixed on the outer side of the shell by screws; a locking nut is connected to the locking threaded column in a threaded manner;
the middle part of the driving plate is provided with a connecting column, the connecting column and the driving plate are provided with limiting holes corresponding to the limiting square columns, and the connecting column is sleeved on the limiting square columns.
5. The permanent magnet mechanism circuit breaker according to claim 4 wherein said front and rear end cylinders have an outer diameter equal to and less than the outer diameter of said middle cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021521754.9U CN212392177U (en) | 2020-07-28 | 2020-07-28 | Permanent magnetic mechanism circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021521754.9U CN212392177U (en) | 2020-07-28 | 2020-07-28 | Permanent magnetic mechanism circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212392177U true CN212392177U (en) | 2021-01-22 |
Family
ID=74253329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021521754.9U Active CN212392177U (en) | 2020-07-28 | 2020-07-28 | Permanent magnetic mechanism circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212392177U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113745046A (en) * | 2021-09-24 | 2021-12-03 | 广西真舜电力科技有限公司 | Manual switching-on and switching-off device of sliding type permanent magnet mechanism |
-
2020
- 2020-07-28 CN CN202021521754.9U patent/CN212392177U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113745046A (en) * | 2021-09-24 | 2021-12-03 | 广西真舜电力科技有限公司 | Manual switching-on and switching-off device of sliding type permanent magnet mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103050324A (en) | Vacuum circuit breaker based on T-shaped double break vacuum arc-extinguishing chamber | |
| CN212392177U (en) | Permanent magnetic mechanism circuit breaker | |
| CN201732720U (en) | Permanent-magnet high-voltage vacuum circuit breaker | |
| CN212695103U (en) | Manual opening and closing mechanism of circuit breaker | |
| CN214254245U (en) | Intelligent permanent magnet vacuum contactor | |
| CN212392176U (en) | Connection structure of circuit breaker utmost point post pull rod | |
| CN105655160A (en) | Double-power supply change-over switch having double-breakpoint moving contact structure | |
| CN201698956U (en) | High voltage vacuum circuit breaker employing permanent magnet operating mechanism | |
| CN212392191U (en) | Novel circuit breaker shell with permanent magnetic mechanism | |
| CN113745046A (en) | Manual switching-on and switching-off device of sliding type permanent magnet mechanism | |
| CN212392150U (en) | Permanent magnetic mechanism of circuit breaker | |
| CN202094043U (en) | Moving contact assembly and electromagnetic isolation driving intelligent switch using same | |
| CN214797244U (en) | Outdoor high-voltage vacuum circuit breaker | |
| CN112180131B (en) | Probe mechanism of on-line measuring device for contact voltage of isolating switch | |
| CN207200252U (en) | A kind of high reliability high-speed switch type fault current limiter | |
| CN111354594B (en) | Complete circuit breaker capable of quickly closing and opening brake | |
| CN111863520A (en) | Direct-acting circuit breaker with isolation | |
| CN219350082U (en) | Direct-acting type magnetic control operating mechanism for driving vacuum circuit breaker | |
| CN213277916U (en) | Isolating switch for transformer and distribution equipment | |
| CN109755050A (en) | One or two fusion serial column upper switch | |
| CN204011237U (en) | A kind of fusing combined electrical apparatus | |
| CN219591338U (en) | Double-brake-separating coil operating mechanism | |
| CN215575455U (en) | Intelligent early warning device for power failure | |
| CN203055773U (en) | Three-position vacuum interrupter | |
| CN115249591B (en) | Magnetic line closed double-combination electric permanent magnet driving double-power transfer switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |