Electric operation drawer of low-voltage switch cabinet

Abstract

The utility model discloses an electric operation drawer of a low-voltage switch cabinet, which belongs to the technical field of electric drawers and comprises a positioning seat I and a positioning seat II which are fixedly mounted on a cabinet body frame of the switch cabinet. A driving gear is rotationally mounted in the positioning seat I; a driven gear I and a driven gear II are rotationally mounted in the positioning seat II, and the driving gear and the driven gear I are in meshing transmission through a toothed chain; the linear rack is fixedly installed on the side face of the drawer, and the second driven gear and the linear rack are in meshing transmission; a manual switching socket is inserted into the driven gear I and the driven gear II; when the manual switching socket is completely inserted into the switching cavity of the driven gear I and the driven gear II, the drawer can be electrically operated at the moment; when the manual switching socket is only inserted into the switching cavity of the first driven gear, the drawer can be manually operated. The drawer not only can be driven electrically, but also can be switched to be driven manually, and is more flexible in practical application.

Description

Technical Field

[0001] This utility model relates to the field of electric drawer technology, specifically an electric operating drawer for a low-voltage switchgear. Background Technology

[0002] Low-voltage switchgear, also known as low-voltage distribution cabinet, is a type of low-voltage complete switchgear and control equipment used for complete electrical installations with AC and DC voltages below 1000V. Low-voltage distribution cabinets typically contain numerous drawers.

[0003] Because drawers contain electrical components such as circuit breakers, relays, and contactors, they are quite heavy. Therefore, many drawers now have electric drive mechanisms. With these mechanisms, the drawers can only be operated electrically; however, in practical applications, especially during maintenance, manual operation is still necessary. Thus, once an electric drive mechanism is installed, it's impossible to switch from electric to manual operation, resulting in limited flexibility in practical use. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an electrically operated drawer for a low-voltage switchgear, which can be electrically driven or switched to manual drive, making it more flexible in practical applications.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is implemented as follows:

[0006] An electric operating drawer for a low-voltage switchgear includes a positioning seat 1 and a positioning seat 2 fixedly installed on the switchgear frame, wherein the positioning seat 1 is located directly below the positioning seat 2.

[0007] The inside of the positioning seat one is rotatably mounted with a drive gear, and the outside of the positioning seat one is fixed with a small motor that drives the drive gear to rotate; the inside of the positioning seat two is rotatably mounted with driven gear one and driven gear two, driven gear one and driven gear two are concentrically mounted and completely identical, and the drive gear and driven gear one are driven by a toothed chain meshing transmission.

[0008] It also includes an angle iron fixedly installed on the side of the drawer, on which a linear rack is fixedly installed, and driven gear two meshes with the linear rack for transmission; both driven gear one and driven gear two have a switching cavity inside, and a manual switching socket is inserted into the switching cavity.

[0009] Using the above scheme, when the manual switching socket is fully inserted into the switching chambers of driven gear one and driven gear two, the drawer can be operated electrically; when the manual switching socket is only inserted into the switching chamber of driven gear one, the drawer can be operated manually. This drawer can be driven electrically or manually, making it more flexible in practical applications.

[0010] As a preferred embodiment of the electric operating drawer of a low-voltage switchgear, the first positioning seat is an N-shaped seat, which is fixedly installed on the switchgear cabinet frame by screws; the second positioning seat is an M-shaped seat, which is fixedly installed on the switchgear cabinet frame by screws.

[0011] Using the above scheme, in order to facilitate the positioning of the drive unit, positioning seat one and positioning seat two are fixed on the switch cabinet frame. When driven, the switch cabinet frame is used as a reference to push the drawer back and forth, thereby realizing the push-in or push-out of the drawer.

[0012] In a preferred embodiment of an electrically operated drawer in a low-voltage switchgear, the diameters of the driving gear, driven gear one, and driven gear two are equal.

[0013] Using the above scheme, in order to facilitate the calculation of driving displacement, all gears are designed to have the same diameter. When the small motor drives the drive gear, all gears will rotate synchronously and at the same angle. The microcontroller on the small motor can control the precise drive of the drawer.

[0014] As a preferred embodiment of the electric operating drawer of a low-voltage switchgear, the manual switching socket and the switching cavity are in an interference fit; the manual switching socket is provided with at least one limiting groove, and the switching cavities of driven gear one and driven gear two are each fixed with a number of limiting keys equal to the number of limiting grooves, and the limiting keys are inserted into the limiting grooves; the limiting keys and the limiting grooves are in an interference fit.

[0015] Using the above scheme, in order to switch between electric and manual operation of the drawer, when the manual switching socket is fully inserted into the switching chambers of driven gear one and driven gear two, the drawer can be operated electrically; when the manual switching socket is only inserted into the switching chamber of driven gear one, the drawer can be operated manually.

[0016] As a preferred embodiment of the electrically operated drawer of a low-voltage switchgear, a push-pull handle is fixed on the outside of the manual switching socket.

[0017] By adopting the above solution, in order to facilitate the manual switching of the socket by pushing and pulling, a push-pull handle is installed to facilitate the manual switching of the socket.

[0018] After adopting the above technical solution, the beneficial effects of this utility model are:

[0019] 1. When the manual switch socket is fully inserted into the switching chambers of driven gear one and driven gear two, the drawer can be operated electrically; when the manual switch socket is only inserted into the switching chamber of driven gear one, the drawer can be operated manually. This drawer can be driven electrically or manually, making it more flexible in practical applications.

[0020] 2. To facilitate the calculation of drive displacement, all gears are designed with the same diameter. When the small motor drives the drive gear, all gears will rotate synchronously and at the same angle. The microcontroller on the small motor can control the precise drive of the drawer.

[0021] 3. To enable switching between electric and manual operation of the drawer, when the manual switch socket is fully inserted into the switching chambers of driven gear one and driven gear two, the drawer can be operated electrically; when the manual switch socket is only inserted into the switching chamber of driven gear one, the drawer can be operated manually.

[0022] 4. To facilitate manual switching of the socket, a push-pull handle is installed for easy operation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention applied to a low-voltage switchgear;

[0025] Figure 2 for Figure 1 A 3D structural diagram of a single drawer;

[0026] Figure 3 The three-dimensional structure of this utility model Figure 1 ;

[0027] Figure 4 The three-dimensional structure of this utility model Figure 2 ;

[0028] Figure 5 To showcase Figure 3 Internal 3D structure diagram during electric operation;

[0029] Figure 6 for Figure 5 A magnified view of a section at point A in the middle;

[0030] Figure 7 for Figure 5 A magnified view of a section at point B in the middle;

[0031] Figure 8 To showcase Figure 3 Internal 3D structure diagram during manual operation;

[0032] Figure 9 for Figure 8 A magnified view of a section at point C;

[0033] Figure 10 for Figure 3 A three-dimensional structural diagram of the central positioning seat 1;

[0034] Figure 11 for Figure 3 Three-dimensional structural diagram of the second positioning seat;

[0035] Figure 12 for Figure 11 A three-dimensional structural diagram of the driven gear 1.

[0036] The markings in the diagram are: 1- Switch cabinet frame; 2- Positioning seat one; 3- Positioning seat two; 4- Drive gear; 5- Small motor; 6- Driven gear one; 7- Driven gear two; 8- Gear chain; 9- Drawer; 10- Angle iron; 11- Linear rack; 12- Switching chamber; 13- Manual switching socket; 14- Limit groove; 15- Limit key; 16- Push-pull handle. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] like Figures 1 to 12As shown, an electrically operated drawer 9 of a low-voltage switchgear includes a positioning seat 1 2 and a positioning seat 2 3 fixedly installed on the switchgear frame 1, wherein the positioning seat 1 2 is located directly below the positioning seat 2 3; a drive gear 4 is rotatably installed inside the positioning seat 1 2, and a small motor 5 for driving the drive gear 4 is fixedly installed on the outside of the positioning seat 1 2; a driven gear 1 6 and a driven gear 2 7 are rotatably installed inside the positioning seat 2 3, the driven gear 1 6 and the driven gear 2 7 are concentrically installed and identical, and the drive gear 4 and the driven gear 1 6 are meshed and transmitted through a gear chain 8; it also includes an angle iron 10 fixedly installed on the side of the drawer 9, and a linear rack 11 is fixedly installed on the angle iron 10, and the driven gear 2 7 and the linear rack 11 are meshed and transmitted through each other; both the driven gear 1 6 and the driven gear 2 7 have a switching cavity 12 inside, and a manual switching socket 13 is inserted into the switching cavity 12. When the manual switching socket 13 is fully inserted into the switching cavity 12 of driven gear 1 and driven gear 2, the drawer 9 can be operated electrically; when the manual switching socket 13 is only inserted into the switching cavity 12 of driven gear 1, the drawer 9 can be operated manually. The drawer 9 can be driven electrically or manually, making it more flexible in practical applications.

[0039] like Figures 10 to 11 As shown, positioning seat 2 is an N-shaped seat, which is fixedly installed on the switch cabinet frame 1 by screws; positioning seat 3 is an M-shaped seat, which is fixedly installed on the switch cabinet frame 1 by screws. To facilitate the positioning of the drive unit, positioning seats 2 and 3 are fixed to the switch cabinet frame 1. During operation, the switch cabinet frame 1 serves as a reference point, thereby pushing the drawer 9 forward and backward, thus achieving the pushing or pushing of the drawer 9.

[0040] like Figure 5 , Figure 8 As shown, the diameters of the driving gear 4, driven gear 6, and driven gear 7 are equal. To facilitate the calculation of driving displacement, all gears are designed with equal diameters. When the small motor 5 drives the driving gear 4, all gears will rotate synchronously and at equal angles. The microcontroller on the small motor 5 can control the precise drive of the drawer 9.

[0041] like Figures 10 to 12As shown, the manual switching socket 13 and the switching cavity 12 are in an interference fit. The manual switching socket 13 has at least one limiting groove 14. Each of the switching cavities 12 within the driven gear 1 and driven gear 2 has a number of limiting keys 15 equal to the number of limiting grooves 14, and the limiting keys 15 are inserted into the limiting grooves 14. The limiting keys 15 and the limiting grooves 14 are in an interference fit. To switch between electric and manual operation of the drawer 9, when the manual switching socket 13 is fully inserted into the switching cavities 12 of driven gear 1 and driven gear 2, the drawer 9 can be operated electrically; when the manual switching socket 13 is only inserted into the switching cavity 12 of driven gear 1, the drawer 9 can be operated manually.

[0042] like Figure 11 As shown, a push-pull handle 16 is fixed to the outside of the manual switch socket 13. The push-pull handle 16 facilitates the operation of the manual switch socket 13.

[0043] The working principle of this utility model:

[0044] Before application, fix the positioning seat 1 2 and positioning seat 2 3 to the switch cabinet frame 1 with screws; fix the angle iron 10 to the side of the drawer 9 with screws.

[0045] When drawer 9 needs to be operated electrically, the manual switching socket 13 is fully inserted into the switching cavity 12 of driven gear 1 6 and driven gear 2 7. At this time, the small motor 5 can drive the driving gear 4 to rotate. Under the meshing transmission of the gear chain 8, driven gear 1 6 is rotated. Driven gear 1 6 will drive driven gear 2 7 to rotate through the manual switching socket 13, thereby driving driven gear 2 7 to move along the linear rack 11. At this time, drawer 9 can be operated electrically.

[0046] When drawer 9 needs to be operated manually, the manual switching socket 13 is inserted only into the switching cavity 12 of driven gear 1 6. At this time, the transmission between driven gear 1 6 and driven gear 2 7 is cut off, and drawer 9 can be operated manually.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A low-voltage switch cabinet electrically operated drawer, comprising a positioning seat one (2) and a positioning seat two (3) fixedly installed on a switch cabinet cabinet frame (1), wherein the positioning seat one (2) is located directly below the positioning seat two (3); characterized in that A driving gear (4) is rotatably installed inside the positioning seat one (2), and a small motor (5) for driving the rotation of the driving gear (4) is fixedly installed on the outside of the positioning seat one (2); a driven gear one (6) and a driven gear two (7) are rotatably installed inside the positioning seat two (3), the driven gear one (6) and the driven gear two (7) are concentrically installed and completely identical, and the driving gear (4) and the driven gear one (6) are in meshing transmission through a chain (8); Further comprising an angle iron (10) fixedly installed on the side of the drawer (9), a linear rack (11) is fixedly installed on the angle iron (10), and the driven gear two (7) and the linear rack (11) are in meshing transmission; the inside of the driven gear one (6) and the driven gear two (7) are both provided with a switching cavity (12), and a manual switching socket (13) is inserted into the switching cavity (12); When the manual switching socket (13) is completely inserted into the switching cavity (12) of the driven gear one (6) and the driven gear two (7), the drawer (9) can be electrically operated at this time; when the manual switching socket (13) is only inserted into the switching cavity (12) of the driven gear one (6), the drawer (9) can be manually operated at this time.

2. Low voltage switchgear motor-operated drawer according to claim 1, characterized in that: The positioning seat one (2) is an N-shaped seat, which is fixedly installed on the switch cabinet cabinet frame (1) by screws.

3. Low voltage switchgear motor-operated drawer according to claim 1, characterized in that: The positioning seat two (3) is an M-shaped seat, which is fixedly installed on the switch cabinet cabinet frame (1) by screws.

4. The low voltage switchgear motor operated drawer of claim 1, wherein: The diameters of the driving gear (4), the driven gear one (6), and the driven gear two (7) are equal.

5. Low voltage switchgear motor-operated drawer according to any of claims 1-4, characterized in that: The cooperation between the manual switching socket (13) and the switching cavity (12) is interference assembly.

6. Low voltage switchgear motor-operated drawer according to claim 5, characterized in that: At least one limiting groove (14) is formed on the manual switching socket (13), and a limiting key (15) equal in number to the limiting grooves (14) is fixedly installed in the switching cavity (12) of the driven gear one (6) and the driven gear two (7), and the limiting key (15) is inserted into the limiting groove (14).

7. Low voltage switchgear motor-operated drawer according to claim 6, characterized in that: The cooperation between the limiting key (15) and the limiting groove (14) is interference assembly.

8. Low voltage switchgear motor-operated drawer according to claim 7, characterized in that: A push-pull handle (16) is fixedly installed on the outside of the manual switching socket (13).

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