CN216435716U - Rear door interlocking mechanism and switch cabinet - Google Patents

Abstract

The utility model discloses a back door interlocking device and cubical switchboard, it includes: the method comprises the following steps: the operating rod, the bevel gear set, the control turntable and the hook lock structure; the bevel gear set is connected with the operating rod and can be connected with the grounding switch and control the grounding switch to be opened and closed; the control turntable is connected with the operating rod, and a notch is formed in the control turntable; the hook lock structure comprises a connecting rod and a lock hook, and the connecting rod is connected with the lock hook and can slide along the length direction of the lock hook in a reciprocating manner; the connecting rod is provided with a clamping block which can slide and extend into the notch; when the clamping block is dislocated with the notch, the clamping block can be slidably abutted against the end face of the control turntable. Through the hook lock structure effect, can realize effectively that the back door can't be opened when operation earthing switch to and the five-prevention interlocking effect that earthing switch can't be operated when the back door is opened. And required motion space is greatly reduced compared with the traditional connecting rod type transmission, and the device can be better suitable for the requirement of the small cabinet on the motion space.

Description

Rear door interlocking mechanism and switch cabinet

Technical Field

The utility model relates to a cubical switchboard field, in particular to back door interlocking device and cubical switchboard.

Background

As is well known, the conventional air-insulated switch cabinet operation grounding switch on the market is mainly based on a connecting rod type transmission, and the operation grounding switch necessarily involves the locking problem about the state of a rear door in five-prevention. During movement of the connecting rod type transmission, the connecting rod needs to swing, so that the minimum distance between the connecting rod and the copper bar still needs to calculate the swing range of the connecting rod. In order to meet the insulation requirement, the minimum distance between the connecting rod and the copper bar has certain requirement when the connecting rod swings. To meet this requirement, the switchgear is either enlarged or an insulating jacket is added to achieve composite insulation. However, the solution of expanding the switch cabinet cannot meet the increasing demand of small-sized cabinets, and the additional installation of the insulating sleeve also has the problems of increased cost, frequent aging and breakdown of the insulating sleeve, and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a back door interlocking can reduce required space.

The utility model discloses still provide a cubical switchboard that has above-mentioned back door interlocking device.

According to the utility model discloses a back door interlocking mechanism of first aspect embodiment includes: the operating rod, the bevel gear set, the control turntable and the hook lock structure; the bevel gear set is connected with the operating rod and can be connected with the grounding switch and control the grounding switch to be opened and closed; the control turntable is connected with the operating rod, and a gap is formed in the control turntable; the hook lock structure comprises a connecting rod and a lock hook, wherein the connecting rod is connected with the lock hook and can slide in a reciprocating manner along the length direction of the connecting rod; the connecting rod is provided with a clamping block which can extend into the gap in a sliding manner; when the clamping block is dislocated with the notch, the clamping block can be slidably abutted against the end face of the control turntable.

According to the utility model discloses back door interlocking has following beneficial effect at least: when the operating rod rotates, the control shaft on the grounding switch is driven to rotate through the bevel gear set, and therefore the control effect on the grounding switch is achieved. Meanwhile, when the operating rod rotates, the operating rod can drive the control turntable to rotate. When the control turntable rotates to the gap and the clamping block is staggered, the clamping block can be shielded by the control turntable, so that the connecting rod cannot slide, and the lock hook is always in a locking state on the rear door. Simultaneously, when the back door unblock can be opened, the screens piece will slide extremely in the breach, thereby it is right the breach causes the screens effect, and the control carousel is unable to rotate, and then makes the action bars unable rotation, can't control earthing switch promptly.

Through the hook lock structure effect, can realize effectively that the back door can't be opened when operation earthing switch to and the five-prevention interlocking effect that earthing switch can't be operated when the back door is opened. In addition, the movement in the transmission process is only the rotation of the operating rod and the sliding of the connecting rod along the length direction, and does not include any swinging, so that the movement space required by the whole body is greatly reduced compared with the traditional connecting rod type transmission, and the requirement of the small cabinet on the movement space can be better met.

According to some embodiments of the invention, the lever is connected to the control dial via the bevel gear set.

According to some embodiments of the invention, the bevel gear set comprises a first bevel gear, a second bevel gear and a third bevel gear, the first bevel gear being connected with the operating rod, the second bevel gear being connected with the control dial; the first bevel gear and the second bevel gear are both meshed with the third bevel gear, and the third bevel gear can be connected with a grounding switch.

According to some embodiments of the invention, the third bevel gear is connected to a rotating shaft, the rotating shaft being connected to the control dial; the rotating shaft is sleeved with a support frame, and the connecting rod is slidably mounted on the support frame.

According to some embodiments of the invention, the locking mechanism further comprises a locking mechanism, the locking mechanism being slidably mounted on the mounting bracket, the locking mechanism being rotatably connected to the end of the connecting rod; the mounting frame is provided with a pushing part, and when the connecting rod drives the lock hook to slide, the pushing part can push the lock hook to enable the lock hook to rotate relative to the connecting rod.

According to the utility model discloses a some embodiments, the tip of connecting rod is provided with the connecting seat, be provided with limiting plate and sliding part on the connecting seat, sliding part sliding connection in on the mounting bracket, the latch hook articulate in on the sliding part, the limiting plate can move support in the mounting bracket.

According to the utility model discloses a some embodiments, the limiting plate with be provided with the reduction structure between the mounting bracket, the limiting plate with the mounting bracket passes through the reduction structure is connected.

According to some embodiments of the present invention, the reset structure comprises a positioning shaft disposed on the limiting plate, the positioning shaft slides through the mounting frame, and an end of the positioning shaft away from the limiting plate is provided with an extension end; the periphery cover of location axle is equipped with the spring, the spring is located the extension end with can drive the two and keep away from relatively between the mounting bracket.

According to some embodiments of the utility model, the action bars is kept away from bevel gear group's one end is provided with the operation panel, the operation panel is connected with operating handle, operating handle with the action bars is connected and can be driven its rotation.

According to the utility model discloses switch cabinet of second aspect embodiment, include according to the utility model discloses above-mentioned back door interlocking device of first aspect embodiment.

According to the utility model discloses cubical switchboard has following beneficial effect at least: through the hook lock structure effect, can realize effectively that the back door can't be opened when operation earthing switch to and the five-prevention interlocking effect that earthing switch can't be operated when the back door is opened. In addition, the movement in the transmission process is only the rotation of the operating rod and the sliding of the connecting rod along the length direction, and does not include any swinging, so that the movement space required by the whole body is greatly reduced compared with the traditional connecting rod type transmission, and the requirement of the small cabinet on the movement space can be better met.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a rear door interlock mechanism according to an embodiment of the present invention;

fig. 2 is an enlarged schematic view at a shown in fig. 1.

Fig. 3 is a schematic view of the support bracket of the rear door interlock mechanism shown in fig. 1.

Reference numerals: 100 is an operation plate, 200 is an operation rod, 230 is a rotating shaft, 300 is a bevel gear set, 400 is a support frame, 450 is a control turntable, 455 is a notch, 500 is a connecting rod, 550 is a clamping block, 600 is an installation frame, 650 is a pushing part, 700 is a connecting seat, 710 is a sliding part, 720 is a limiting plate, 730 is a locking hook, 750 is a positioning shaft, 755 is a spring, and 900 is a back door locking block.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1, a rear door interlock mechanism includes: an operating lever 200, a bevel gear set 300, a control dial 450, and a hook lock structure; the bevel gear set 300 is connected with the operating rod 200, and the bevel gear set 300 can be connected with the grounding switch and controls the grounding switch to be opened and closed; the control turntable 450 is connected with the operating rod 200, and a notch 455 is arranged on the control turntable 450; the hook locking structure comprises a connecting rod 500 and a locking hook 730, wherein the connecting rod 500 is connected with the locking hook 730 and can slide back and forth along the length direction of the connecting hook 730; the connecting rod 500 is provided with a clamping block 550, and the clamping block 550 can slide and extend into the notch 455; when the block 550 is dislocated from the notch 455, the block 550 can slide against the end surface of the control dial 450. When the operating rod 200 rotates, the bevel gear set 300 drives the control shaft on the grounding switch to rotate, so that the control effect on the grounding switch is realized. Meanwhile, when the operating rod 200 rotates, the control dial 450 will be driven to rotate. When the control dial 450 rotates to the position where the notch 455 is dislocated from the locking block 550, the locking block 550 will be blocked by the control dial 450, so that the connecting rod 500 cannot slide, and the locking hook 730 is always locked to the rear door. Meanwhile, when the back door is unlocked and can be opened, the clamping block 550 slides into the notch 455, so that the clamping effect is caused to the notch 455, the control dial 450 cannot rotate, and the operating rod 200 cannot rotate, that is, cannot control the grounding switch. Through the hook lock structure effect, can realize effectively that the back door can't be opened when operation earthing switch to and the five-prevention interlocking effect that earthing switch can't be operated when the back door is opened. In addition, the movement in the transmission process is only the rotation of the operating rod 200 and the sliding of the connecting rod 500 along the length direction, and does not include any swinging, so that the movement space required by the whole body is greatly reduced compared with the traditional link transmission, and the requirement of the small cabinet on the movement space can be better met.

In some embodiments, referring to FIG. 1, the lever 200 is coupled to the control dial 450 via a bevel gear set 300. The connection of the bevel gear set 300 to the lever 200 and the control dial 450 may make the positional relationship between the control dial 450, the bevel gear set 300, and the lever 200 more compact. Meanwhile, the control turntable 450 and the grounding switch are synchronously connected through the bevel gear set 300, so that the control of the control turntable 450 and the grounding switch can be effectively ensured to be synchronously carried out, and the problem of asynchronous control caused by respective assembly errors among different transmission mechanisms is further avoided.

In some embodiments, referring to fig. 1, the bevel gear set 300 includes a first bevel gear connected to the operating rod 200, a second bevel gear connected to the control dial 450, and a third bevel gear; the first bevel gear and the second bevel gear are both meshed with a third bevel gear, and the third bevel gear can be connected with a grounding switch. When the operating rod 200 drives the first bevel gear to rotate, the first bevel gear drives the third bevel gear to rotate through the meshing connection, and the third bevel gear drives the second bevel gear to rotate together through the meshing connection, so that the connecting rod 500 and the grounding switch can be effectively driven to move together through the rotation of the operating rod 200, and the interlocking effect can be directly and effectively realized.

It is anticipated that the specific configuration of the bevel gear set 300 may be other, such as three bevel gears coaxially connected to rotate together, etc., and the specific embodiment may be adjusted according to the actual needs, and is not limited herein.

In some embodiments, referring to FIG. 3, the third bevel gear is coupled to a rotating shaft 230, the rotating shaft 230 being coupled to a control dial 450; the support frame 400 is sleeved outside the rotating shaft 230, and the connecting rod 500 is slidably mounted on the support frame 400. The support frame 400 can not only support the connection rod 500, but also effectively position the control dial 450 and the connection rod 500 relative to each other, thereby ensuring stable engagement between the notch 455 and the detent block 550.

Specifically, the rotating shaft 230 is provided with a non-circular connecting pile, and the center of the control turntable 450 is provided with a connecting hole with a matching shape, and the connecting pile is connected in the connecting hole.

In some embodiments, referring to fig. 2, further comprising a mounting bracket 600, the connecting rod 500 is slidably mounted on the mounting bracket 600, and the locking hook 730 is rotatably connected to an end of the connecting rod 500; the mounting bracket 600 is provided with a pushing portion 650, and when the connecting rod 500 drives the locking hook 730 to slide, the pushing portion 650 can push the locking hook 730 so that the locking hook 730 rotates relative to the connecting rod 500. The connecting rod 500 will drive the locking hook 730 to move together when sliding. In the process of movement, the latch hook 730 is pushed by the pushing part 650, so that the latch hook 730 is turned over relative to the connecting rod 500, and the locking effect of the latch hook 730 on the rear door is achieved. Support and connect connecting rod 500 through mounting bracket 600, not only can make connecting rod 500 obtain effectual supporting effect to also can be direct, realize the automatic locking and the unblock effect of latch hook 730 effectively.

Specifically, the pushing part 650 is a flanged structure disposed at an edge of the mounting bracket 600.

In some embodiments, referring to fig. 2, the end of the connecting rod 500 is provided with a connecting seat 700, the connecting seat 700 is provided with a limiting plate 720 and a sliding part 710, the sliding part 710 is slidably connected to the mounting bracket 600, the locking hook 730 is hinged to the sliding part 710, and the limiting plate 720 can move to abut against the mounting bracket 600. The limiting effect of the limiting plate 720 on the connecting seat 700 makes the sliding part 710 on the connecting seat 700 unable to move excessively relative to the mounting bracket 600, so as to prevent the sliding part 710 from being disengaged from the mounting bracket 600, and further improve the stability of the connecting rod 500 and the locking hook 730 during movement.

Specifically, the sliding portion 710 and the limiting plate 720 are respectively located at inner and outer sides of the mounting bracket 600.

In some embodiments, referring to fig. 2, a reset structure is disposed between the limiting plate 720 and the mounting bracket 600, and the limiting plate 720 and the mounting bracket 600 are connected through the reset structure. When the back door is opened, the reset structure can automatically drive the clamping block 550 to move into the notch 455, so that the automatic locking effect on the grounding switch is directly and effectively realized.

In some embodiments, referring to fig. 2, the resetting structure includes a positioning shaft 750 disposed on the position-limiting plate 720, the positioning shaft 750 slides through the mounting bracket 600, and an end of the positioning shaft 750 away from the position-limiting plate 720 is provided with an expanding end; the positioning shaft 750 is sleeved with a spring 755 at the outer circumference thereof, and the spring 755 is located between the expansion end and the mounting bracket 600 and can drive the expansion end and the mounting bracket to be relatively far away from each other. When the rear door is locked, the sliding part 710 is pushed, thereby moving the positioning shaft 750 together, and causing the expansion end to compress the spring 755 in cooperation with the mounting bracket 600. When the back door is opened, the spring 755 will stretch and drive the positioning shaft 750 to reset, thereby effectively realizing the automatic locking effect of the grounding switch.

It is contemplated that the reset mechanism may be formed of other components, such as a magnet (not shown) to achieve the attraction effect of the metal connecting rod 500. The specific implementation manner may be adjusted accordingly according to actual needs, and is not limited herein.

In some embodiments, referring to fig. 1, an end of the operating rod 200 away from the bevel gear set 300 is provided with an operating plate 100, and the operating plate 100 is connected with an operating handle which is connected with the operating rod 200 and can drive the operating rod to rotate. The operation panel 100 and the operation handle can effectively provide an operation end to the user, thereby making the driving of the operation lever 200 easier.

A second aspect of the present invention provides an embodiment of a switch cabinet, comprising the above back door interlocking mechanism. Through the hook lock structure effect, can realize effectively that the back door can't be opened when operation earthing switch to and the five-prevention interlocking effect that earthing switch can't be operated when the back door is opened. In addition, the movement in the transmission process is only the rotation of the operating rod 200 and the sliding of the connecting rod 500 along the length direction, and does not include any swinging, so that the movement space required by the whole body is greatly reduced compared with the traditional link transmission, and the requirement of the small cabinet on the movement space can be better met.

Specifically, a rear door lock block 900 is arranged on a rear door of the switch cabinet, a hook groove is arranged on the rear door lock block 900, and the rear door lock block 900 can push the connecting rod 500 and enable the hook groove to be connected with the hook 730 in a clamping manner.

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

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A rear door interlock mechanism, comprising:

an operation lever (200);

the bevel gear set (300) is connected with the operating rod (200), and the bevel gear set (300) can be connected with a grounding switch and controls the grounding switch to be opened and closed;

the control rotary disc (450) is connected with the operating rod (200), and a notch (455) is formed in the control rotary disc (450);

the hook lock structure comprises a lock hook (730) and a connecting rod (500), wherein the connecting rod (500) is connected with the lock hook (730) and can slide back and forth along the length direction of the connecting rod; the connecting rod (500) is provided with a clamping block (550), and the clamping block (550) can extend into the notch (455) in a sliding manner; when the clamping block (550) is dislocated with the notch (455), the clamping block (550) can be slidably abutted against the end face of the control turntable (450).

2. A rear door interlock as set forth in claim 1, wherein:

the operating rod (200) is connected with the control dial (450) through the bevel gear set (300).

3. A rear door interlock as set forth in claim 2, wherein:

the bevel gear set (300) comprises a first bevel gear, a second bevel gear and a third bevel gear, the first bevel gear is connected with the operating rod (200), and the second bevel gear is connected with the control turntable (450);

the first bevel gear and the second bevel gear are both meshed with the third bevel gear, and the third bevel gear can be connected with a grounding switch.

4. A rear door interlock as set forth in claim 3, wherein:

the third bevel gear is connected with a rotating shaft (230), and the rotating shaft (230) is connected with the control turntable (450);

the pivot (230) overcoat is equipped with support frame (400), connecting rod (500) slidable mounting in on support frame (400).

5. A rear door interlock as set forth in claim 1, wherein:

the connecting rod (500) is slidably mounted on the mounting rack (600), and the lock hook (730) is rotatably connected with the end part of the connecting rod (500);

be provided with on mounting bracket (600) top portion (650), when connecting rod (500) drove latch hook (730) slide, top portion (650) can push away latch hook (730) so that latch hook (730) rotate for connecting rod (500).

6. A rear door interlock as set forth in claim 5, wherein:

the tip of connecting rod (500) is provided with connecting seat (700), be provided with limiting plate (720) and sliding part (710) on connecting seat (700), sliding part (710) sliding connection in on mounting bracket (600), latch hook (730) articulate in on sliding part (710), limiting plate (720) can move support in mounting bracket (600).

7. A rear door interlock as set forth in claim 6, wherein:

a reset structure is arranged between the limiting plate (720) and the mounting rack (600), and the limiting plate (720) and the mounting rack (600) are connected through the reset structure.

8. A rear door interlock as set forth in claim 7, wherein:

the resetting structure comprises a positioning shaft (750) arranged on the limiting plate (720), the positioning shaft (750) penetrates through the mounting frame (600) in a sliding manner, and an expansion end is arranged at the end part, far away from the limiting plate (720), of the positioning shaft (750); the periphery cover of location axle (750) is equipped with spring (755), spring (755) is located the extension end with between mounting bracket (600) and can drive the two and keep away from relatively.

9. A rear door interlock as set forth in claim 1, wherein:

one end of the operating rod (200), which is far away from the bevel gear set (300), is provided with an operating plate (100), the operating plate (100) is connected with an operating handle, and the operating handle is connected with the operating rod (200) and can drive the operating rod to rotate.

10. A switchgear cabinet comprising a rear door interlock as claimed in any one of claims 1 to 9.

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