CN214479018U - Interlocking mechanism for low-voltage switch cabinet and low-voltage switch cabinet - Google Patents
Interlocking mechanism for low-voltage switch cabinet and low-voltage switch cabinet Download PDFInfo
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- CN214479018U CN214479018U CN202120780489.4U CN202120780489U CN214479018U CN 214479018 U CN214479018 U CN 214479018U CN 202120780489 U CN202120780489 U CN 202120780489U CN 214479018 U CN214479018 U CN 214479018U
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Abstract
The utility model discloses an interlocking device and low-voltage switchgear for low-voltage switchgear, low-voltage switchgear includes the cabinet body, the drawer unit, circuit breaker and operating axis, interlocking device includes the first jam plate that slidable set up, slidable locates the one end lateral part of first jam plate and the second jam plate that the slip opposite direction of slip direction and first jam plate, slidable locates the other end lateral part of first jam plate and the slip direction third jam plate mutually perpendicular with the slip direction of first jam plate, a first drive assembly for driving first jam plate and second jam plate synchronous slip, a second drive assembly for driving the third jam plate gliding. The utility model discloses an interlocking device through the cooperation of first jam plate, second jam plate and third jam plate for operating personnel must just can operate the operating axis after drawer unit and the relative locking of drawer unit, has guaranteed the area of contact of drawer unit and drawer unit, has avoided the emergence of contact failure, electric elements scheduling problem that generates heat.
Description
Technical Field
The utility model relates to an interlocking device and low-voltage switchgear for low-voltage switchgear.
Background
The low-voltage switch cabinet is a power distribution device and is suitable for low-voltage power distribution systems of power plants, petroleum, chemical industry, metallurgy, textile, high-rise buildings and the like. The low-voltage switch cabinet generally comprises a cabinet body, a plurality of drawer units arranged on the cabinet body, a circuit breaker and other electrical elements arranged in the drawer units, and an operating shaft connected to the circuit breaker, wherein the opening and closing of the circuit breaker can be realized through the swinging of the operating shaft, so that the switching between the working state and the maintenance state of the switch cabinet can be realized.
However, in the conventional low-voltage switch cabinet, after the drawer unit is installed in the drawer unit, even if the drawer unit is not locked with the drawer unit relatively, an operator can still operate the operating shaft and control the opening and closing of the circuit breaker, so that the contact area between the drawer unit and the drawer unit is small, and a series of problems such as poor contact, heating of electrical elements and the like occur in the switch cabinet.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide an interlocking device for low-voltage switchgear.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
an interlocking mechanism for a low-voltage switch cabinet, the low-voltage switch cabinet comprises a cabinet body, a plurality of drawer units arranged on the cabinet body, a circuit breaker arranged in the drawer units, and an operating shaft connected to the circuit breaker and penetrating out of the drawer units,
the interlocking mechanism is arranged on the outer bottom surface of the drawer unit along the horizontal direction and comprises a first locking plate, a second locking plate, a third locking plate, a first driving assembly and a second driving assembly, wherein the first locking plate is arranged in a slidable mode along the direction from one end to the other end of the drawer unit, the second locking plate is arranged on the side portion of one end of the first locking plate in a slidable mode, the sliding direction of the second locking plate is opposite to the sliding direction of the first locking plate, the third locking plate is arranged on the side portion of the other end of the first locking plate in a slidable mode, the sliding direction of the third locking plate is perpendicular to the sliding direction of the first locking plate, the first driving assembly is used for driving the first locking plate and the second locking plate to synchronously slide, and the second driving assembly is used for driving the third locking plate to slide;
the low-voltage switch cabinet further comprises a sliding chute which is arranged at the bottom of the drawer unit and is parallel to the sliding direction of the first locking plate, and a linkage piece of which one end is connected with the operating shaft, and the end part of the other end of the linkage piece can slidably penetrate through the sliding chute along the extending direction of the sliding chute;
the interlocking mechanism has a first state and a second state, when the interlocking mechanism is in the first state, the first lock head and the second lock head are correspondingly inserted into the first lock hole and the second lock hole respectively, one end of the third lock plate is clamped and embedded in the bayonet, and the other end of the third lock plate is separated from the chute; when the interlocking mechanism is in a second state, the first lock head and the second lock head are respectively separated from the first lock hole and the second lock hole, one end of the third lock plate abuts against the side part of the first lock plate, and the other end of the third lock plate is shielded on the sliding groove and can block the linkage piece.
Preferably, notches respectively matched with the first lock head and the second lock head are formed in two sides of the drawer unit, and the first lock head and the second lock head can penetrate through the corresponding notches and are inserted into the first lock hole and the second lock hole respectively.
Preferably, the first driving assembly comprises a driving gear rotatably arranged between the first locking plate and the second locking plate, a first screw inserted in the driving gear, a second screw in transmission connection with the first screw, and a first knob arranged at the end of the second screw and used for driving the second screw to rotate, wherein sawteeth are respectively arranged on one sides of the first locking plate and the second locking plate, which are close to each other, and the two sides of the driving gear are respectively meshed with the sawteeth on the first locking plate and the second locking plate.
Further preferably, the first screw and the second screw are perpendicular to each other, and the first knob is mounted to a side of the drawer unit.
Preferably, the second driving assembly comprises a mounting plate fixedly arranged on the outer bottom surface of the drawer unit, a rotating shaft penetrating through the mounting plate, a driving plate rotatably arranged on the rotating shaft, and a first elastic piece, two ends of the first elastic piece are respectively connected with the driving plate and the mounting plate, a rotating axis of the driving plate extends along the vertical direction, and the third locking plate is connected to the driving plate and is positioned between the first elastic piece and the rotating shaft.
Further preferably, the mounting panel is located including pasting first plate body, two on the drawer unit are located respectively first plate body both sides and with first plate body looks vertically second plate body, first elastic component be the pressure spring and its both ends connect respectively in the drive plate with keep away from first lock plate one side on the second plate body.
Still further preferably, the second driving assembly further comprises a long hole formed in the driving plate, and the third locking plate is provided with a connecting column which is slidably inserted into the long hole.
Another object of the utility model is to provide a low-voltage switchgear.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a low-voltage switch cabinet, includes the cabinet body, locates a plurality of drawer units on the cabinet body, locate circuit breaker in the drawer unit, connect in operating axis on the circuit breaker, low-voltage switch cabinet still includes as above interlocking device.
Preferably, the low-voltage switch cabinet further comprises an operating panel arranged on the drawer unit in an openable and closable manner, a locking member used for locking or unlocking the operating panel and the drawer unit relatively, wherein the locking member comprises a fourth locking plate arranged on the drawer unit in a slidable manner, a second elastic member arranged between one end part of the fourth locking plate in the sliding direction and the drawer unit, and a locking hook arranged on the operating panel and used for hooking the other end part of the fourth locking plate in the sliding direction.
Further preferably, the locking member further includes an unlocking hole formed in the drawer unit, and an unlocking lever for passing through the unlocking hole and pressing the fourth locking plate toward a direction close to the second elastic member.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses an interlocking device through the cooperation of first jam plate, second jam plate and third jam plate for operating personnel must just can operate the operating axis after drawer unit and the relative locking of drawer unit, has guaranteed the area of contact of drawer unit and drawer unit, has avoided the emergence of contact failure, electric elements scheduling problem that generates heat.
Drawings
Fig. 1 is a schematic structural diagram of a low-voltage switch cabinet according to an embodiment of the present invention;
fig. 2 is a schematic bottom view of a drawer unit according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a drawer unit in an embodiment of the invention;
fig. 4 is a schematic side view of a drawer unit according to an embodiment of the invention.
In the figure: 1. a first lock plate; 1a, a first lock head; 1b, a bayonet; 2. a second lock plate; 2a, a second lock head; 3. a third locking plate; 3a, connecting columns; 4. a first drive assembly; 4a, a driving gear; 4b, a first knob; 5. a second drive assembly; 5a, mounting plates; 5b, a rotating shaft; 5c, a driving plate; 5d, a first elastic piece; 5e, a long hole; 6. a notch;
30. a cabinet body; 31. a drawer unit; 32. a circuit breaker; 33. an operating shaft; 34. a chute; 35. a linkage member; 36. an operation panel; 37. a locking member; 37a, a fourth locking plate; 37b, a second elastic member; 37c, a latch hook; 37d, unlocking the hole; 38. a second knob.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
The utility model relates to an improvement to low-voltage switchgear, low-voltage switchgear after the improvement is provided with interlocking device, this interlocking device, through the cooperation of first jam plate 1, second jam plate 2 and third jam plate 3 for operating personnel must just can operate operating shaft 33 after drawer unit 31 and the relative locking of drawer unit 31, has guaranteed drawer unit 31 and drawer unit 31's area of contact, has avoided contact failure, the emergence of the electrical component scheduling problem that generates heat.
Referring to fig. 1-4, a low-voltage switch cabinet is shown, which includes a cabinet body 30, a plurality of drawer units 31 disposed on the cabinet body 30, a circuit breaker 32 disposed in the drawer units 31, an operating shaft 33 connected to the circuit breaker 32 and penetrating through the drawer units 31, a sliding slot 34 disposed at the bottom of the drawer units 31 and parallel to the sliding direction of the first lock plate 1, and a linking member 35 having one end connected to the operating shaft 33, wherein the other end of the linking member 35 is slidably inserted into the sliding slot 34 along the extending direction of the sliding slot 34. In this embodiment, the second knob 38 is sleeved on the operating shaft 33, the second knob 38 is installed at a side portion of the drawer unit 31, when the circuit breaker 32 needs to be switched on and off, the operating shaft 33 can be driven to realize the switching on and off operations only by rotating the second knob 38, and when the second knob 38 is rotated, the linkage member 35 can slide in the sliding groove 34.
The innovation points of the embodiment are as follows: as shown in fig. 2, the low voltage switch cabinet further includes an interlock mechanism horizontally installed on an outer bottom surface of the drawer unit 31, and the interlock mechanism can prevent the sliding of the link 35 and further prevent the swing of the operating shaft 33 when the drawer unit 31 and the cabinet body 30 are not locked, so that an operator can avoid switching on and off operations when the drawer unit 31 and the cabinet body 30 are not locked.
Specifically, referring to fig. 2 again, the interlocking mechanism includes a first locking plate 1 slidably disposed along a direction from one end to the other end of the drawer unit 31, a second locking plate 2 slidably disposed on one end side of the first locking plate 1 and having a sliding direction opposite to that of the first locking plate 1, a third locking plate 3 slidably disposed on the other end side of the first locking plate 1 and having a sliding direction perpendicular to that of the first locking plate 1, a first driving assembly 4 for driving the first locking plate 1 and the second locking plate 2 to slide synchronously, and a second driving assembly 5 for driving the third locking plate 3 to slide; one end of the first locking plate 1 close to the third locking plate 3 is provided with a first locking head 1a, one end of the second locking plate 2 far away from the third locking plate 3 is provided with a second locking head 2a, two sides of the cabinet body 30 are respectively provided with a first locking hole and a second locking hole matched with the first locking head 1a and the second locking head 2a, and one end side part of the first locking plate 1 close to the third locking plate 3 is provided with a bayonet 1 b.
In this example, the interlocking mechanism has a first state and a second state, when the interlocking mechanism is in the first state, the first lock head 1a and the second lock head 2a are respectively and correspondingly inserted into the first lock hole and the second lock hole, one end of the third lock plate 3 is embedded in the bayonet 1b, and the other end is separated from the chute 34; when the interlocking mechanism is in the second state, the first locking head 1a and the second locking head 2a are separated from the first locking hole and the second locking hole respectively, one end of the third locking plate 3 abuts against the side portion of the first locking plate 1, and the other end of the third locking plate shields the sliding groove 34 and can shield the linkage member 35.
Thus, after the drawer unit 31 is installed in the cabinet body 30, the first driving assembly 4 drives the first locking plate 1 and the second locking plate 2 to reversely slide and enables the first locking head 1a and the second locking head 2a to be locked with the first locking hole and the second locking hole on two sides respectively, and through the precise design of the opening position of the bayonet 1b, when the first locking head 1a is inserted into the first locking hole, the bayonet 1b just moves to the third locking plate 3 along with the first locking plate 1, the third locking plate 3 is clamped and embedded in the bayonet 1b under the action of the second driving assembly 5, at the moment, the operating shaft 33 can be freely operated, and the opening and closing of the circuit breaker 32 are realized;
if the drawer unit 31 and the cabinet body 30 are not locked relatively by the first locking plate 1 and the second locking plate 2, that is, the first lock head 1a is not inserted into the first lock hole, the bayonet 1b cannot reach the third locking plate 3, the third locking plate 3 abuts against the side of the first locking plate 1 under the action of the second driving assembly 5, the other end of the third locking plate is blocked on the sliding groove 34, the linkage member 35 is blocked by the third locking plate 3 and cannot move, and the operator cannot operate the operating shaft 33.
Further, as shown in fig. 4, notches 6 respectively matched with the first lock head 1a and the second lock head 2a are formed in two sides of the drawer unit 31, and the first lock head 1a and the second lock head 2a can respectively penetrate through the corresponding notches 6 and be inserted into the first lock hole and the second lock hole.
In this embodiment, referring to fig. 2 again, the first driving assembly 4 includes a driving gear 4a rotatably disposed between the first locking plate 1 and the second locking plate 2, a first screw inserted into the driving gear 4a, a second screw in transmission connection with the first screw, and a first knob 4b disposed at an end of the second screw and used for driving the second screw to rotate, wherein the first locking plate 1 and the second locking plate 2 are respectively provided with a sawtooth at a side close to each other, and two side portions of the driving gear 4a are respectively engaged with the sawteeth on the first locking plate 1 and the second locking plate 2. The first and second screws are perpendicular to each other, and the first knob 4b is installed at a side of the drawer unit 31. Here, the specific transmission connection structure of the first screw and the second screw is the prior art, and is not shown in the figure and is not described herein. After the drawer unit 31 is installed in the cabinet body 30, only the first knob 4b needs to be rotated, the first knob 4b drives the second screw to rotate, the second screw drives the first screw to rotate, the first screw drives the driving gear 4a to rotate, the driving gear 4a can synchronously drive the first locking plate 1 and the second locking plate 2 to reversely slide, so that the first locking head 1a and the second locking head 2a can be respectively inserted into the first locking hole and the second locking hole on the two sides, and the drawer unit 31 and the cabinet body 30 are locked.
In this embodiment, the second driving assembly 5 includes a mounting plate 5a fixed to an outer bottom surface of the drawer unit 31, a rotating shaft 5b penetrating the mounting plate 5a, a driving plate 5c rotatably disposed on the rotating shaft 5b, and a first elastic member 5d having two ends respectively connected to the driving plate 5c and the mounting plate 5a, wherein a rotation axis of the driving plate 5c extends in an up-down direction, and the third locking plate 3 is connected to the driving plate 5c and located between the first elastic member 5d and the rotating shaft 5 b. Wherein, the mounting panel 5a includes the first plate body of subsides on locating the drawer unit 31, two locate first plate body both sides respectively and with first plate body mutually vertically second plate body, first elastic component 5d is the pressure spring and its both ends are connected respectively in drive plate 5c and keep away from on the second plate body of first jam plate 1 one side. When the first locking plate 1 and the second locking plate 2 are unlocked, one end of the third locking plate 3 abuts against the side of the first locking plate 1, and the other end of the third locking plate is blocked on the sliding groove 34, so that the sliding of the linkage 35 can be prevented, and the compression spring is in a compressed state; after the first locking plate 1 and the second locking plate 2 are locked, when the bayonet 1b reaches the third locking plate 3, the driving plate 5c rotates under the action of the pressure spring to drive the third locking plate 3 to be embedded in the bayonet 1b, and at the moment, the operating shaft 33 can be freely operated.
Further, the second driving assembly 5 further comprises a long hole 5e formed in the driving plate 5c, a connecting column 3a is arranged on the third locking plate 3, and the connecting column 3a slidably penetrates through the long hole 5 e. By the arrangement of the elongated hole 5e, a margin of space is provided for the driving of the driving plate 5 c.
In the present embodiment, as shown in fig. 3 to 4, the low voltage switch cabinet further includes an operation panel 36 disposed on the drawer unit 31 and capable of being opened and closed, and a locking member 37 for locking or unlocking the operation panel 36 and the drawer unit 31 relatively, the locking member 37 includes a fourth locking plate 37a slidably disposed on the drawer unit 31, a second elastic member 37b disposed between one end of the fourth locking plate 37a in the sliding direction and the drawer unit 31, and a locking hook 37c disposed on the operation panel 36 and used for being hooked on the other end of the fourth locking plate 37a in the sliding direction. The second elastic element 37b is a compression spring, and is used for sliding return of the fourth locking plate 37a, when the operation panel 36 is locked with the drawer unit 31, the hook head of the locking hook 37c presses the fourth locking plate 37a and compresses the compression spring, and after the hook head passes through the fourth locking plate 37a, the fourth locking plate 37a is returned under the action of the compression spring and clamps in the hook groove of the locking hook 37c, so as to achieve locking. In this example, the first knob 4b and the second knob 38 are both mounted on the operation panel 36.
Further, the locking member 37 further includes an unlocking hole 37d opened in the drawer unit 31, and an unlocking lever for passing through the unlocking hole 37d and pressing the fourth locking plate 37a toward a direction close to the second elastic member 37 b. The unlocking lever may be any rod-shaped object matched with the unlocking hole 37d, and the unlocking lever penetrates through the unlocking hole 37d and presses the fourth locking plate 37a to separate the fourth locking plate 37a from the locking hook 37c, so that the unlocking of the operation panel 36 can be realized, and the operation panel 36 can be freely opened at this time.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides an interlocking device for low-voltage switchgear, low-voltage switchgear includes the cabinet body, locates a plurality of drawer units on the cabinet body, locate circuit breaker in the drawer unit, connect in on the circuit breaker and wear out the operating axis of drawer unit, its characterized in that:
the interlocking mechanism is arranged on the outer bottom surface of the drawer unit along the horizontal direction and comprises a first locking plate, a second locking plate, a third locking plate, a first driving assembly and a second driving assembly, wherein the first locking plate is arranged in a slidable mode along the direction from one end to the other end of the drawer unit, the second locking plate is arranged on the side portion of one end of the first locking plate in a slidable mode, the sliding direction of the second locking plate is opposite to the sliding direction of the first locking plate, the third locking plate is arranged on the side portion of the other end of the first locking plate in a slidable mode, the sliding direction of the third locking plate is perpendicular to the sliding direction of the first locking plate, the first driving assembly is used for driving the first locking plate and the second locking plate to synchronously slide, and the second driving assembly is used for driving the third locking plate to slide;
the low-voltage switch cabinet further comprises a sliding chute which is arranged at the bottom of the drawer unit and is parallel to the sliding direction of the first locking plate, and a linkage piece of which one end is connected with the operating shaft, and the end part of the other end of the linkage piece can slidably penetrate through the sliding chute along the extending direction of the sliding chute;
the interlocking mechanism has a first state and a second state, when the interlocking mechanism is in the first state, the first lock head and the second lock head are correspondingly inserted into the first lock hole and the second lock hole respectively, one end of the third lock plate is clamped and embedded in the bayonet, and the other end of the third lock plate is separated from the chute; when the interlocking mechanism is in a second state, the first lock head and the second lock head are respectively separated from the first lock hole and the second lock hole, one end of the third lock plate abuts against the side part of the first lock plate, and the other end of the third lock plate is shielded on the sliding groove and can block the linkage piece.
2. An interlock mechanism for a low-voltage switchgear cabinet according to claim 1, characterized in that: the drawer unit is provided with a first lock hole and a second lock hole, the first lock hole is provided with a first locking hole, the second lock hole is provided with a second locking hole, the first locking hole is provided with a second locking hole, the second locking hole is provided with a second locking hole, and the second locking hole is provided with a second locking hole.
3. An interlock mechanism for a low-voltage switchgear cabinet according to claim 1, characterized in that: first drive assembly includes rotatable locating first jam plate with drive gear between the second jam plate, insert and locate first screw rod in the drive gear, with first screw rod looks transmission connection's second screw rod, locate second screw rod tip be used for driving second screw rod pivoted first knob, first jam plate with one side that the second jam plate is close to each other is equipped with the sawtooth respectively, drive gear both sides portion respectively with first jam plate with on the second jam plate the sawtooth meshes mutually.
4. An interlock mechanism for a low-voltage switchgear cabinet according to claim 3, characterized in that: the first screw rod and the second screw rod are perpendicular to each other, and the first knob is mounted on the side of the drawer unit.
5. An interlock mechanism for a low-voltage switchgear cabinet according to claim 1, characterized in that: the second drive assembly comprises a mounting plate fixedly arranged on the outer bottom surface of the drawer unit, a rotating shaft penetrating through the mounting plate, a rotating shaft and a first elastic piece, wherein the rotating shaft and the rotating shaft are arranged on the mounting plate, the rotating shaft is arranged on the rotating shaft, two ends of the rotating shaft are respectively connected with the drive plate and the first elastic piece connected with the mounting plate, the rotating axis of the drive plate extends along the vertical direction, and a third locking plate is connected to the drive plate and is positioned between the first elastic piece and the rotating shaft.
6. An interlock mechanism for a low-voltage switchgear cabinet according to claim 5, characterized in that: the mounting panel is located including pasting first plate body, two on the drawer unit are located respectively first plate body both sides and with first plate body looks vertically second plate body, first elastic component be pressure spring and its both ends connect respectively in the drive plate with keep away from first lock plate one side on the second plate body.
7. An interlock mechanism for a low-voltage switchgear cabinet according to claim 6, characterized in that: the second driving assembly further comprises a long hole formed in the driving plate, a connecting column is arranged on the third locking plate and slidably penetrates through the long hole.
8. The utility model provides a low-voltage switch cabinet, includes the cabinet body, locates a plurality of drawer units on the cabinet body, locate circuit breaker in the drawer unit, connect in operating axis on the circuit breaker, its characterized in that: the low-voltage switchgear cabinet further comprises an interlocking mechanism according to any one of claims 1 to 7.
9. A low-voltage switchgear, according to claim 8, characterized in that: but low-voltage switchgear still includes open closed locating operating panel on the drawer unit, be used for with operating panel with the locking piece of drawer unit relative locking or unblock, the locking piece includes slidable locates fourth jam plate on the drawer unit, locate one end of fourth jam plate slip direction with second elastic component between the drawer unit, locate be used for on the operating panel to hook and hang the latch hook of another tip of fourth jam plate slip direction.
10. A low-voltage switchgear, according to claim 9, characterized in that: the locking piece further comprises an unlocking hole formed in the drawer unit and an unlocking rod used for penetrating through the unlocking hole and extruding the fourth locking plate towards the direction close to the second elastic piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120780489.4U CN214479018U (en) | 2021-04-16 | 2021-04-16 | Interlocking mechanism for low-voltage switch cabinet and low-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120780489.4U CN214479018U (en) | 2021-04-16 | 2021-04-16 | Interlocking mechanism for low-voltage switch cabinet and low-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214479018U true CN214479018U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120780489.4U Active CN214479018U (en) | 2021-04-16 | 2021-04-16 | Interlocking mechanism for low-voltage switch cabinet and low-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214479018U (en) |
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2021
- 2021-04-16 CN CN202120780489.4U patent/CN214479018U/en active Active
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