MNS fast plug-in low voltage switch cabinet

Abstract

The utility model discloses a kind of MNS fast-insertion low-voltage switch cabinet, belong to low-voltage switch cabinet technical field, its technical scheme main points include MNS fast-insertion low-voltage switch cabinet ontology and several drawer unit ontology, the front side of the MNS fast-insertion low-voltage switch cabinet ontology is provided with bearing mechanism, the bottom of the bearing mechanism is provided with lifting mechanism, the top of the MNS fast-insertion low-voltage switch cabinet ontology is provided with speed reducer;The bearing mechanism includes load plate, several grooves and rotating roller, the groove is opened in the top of load plate, the rotating roller is rotatably connected in the inside of groove, the material of the rotating roller is thermoplastic polyurethane, solve the drawer unit weight of part MNS low-voltage switch cabinet of existing part, for part MNS low-voltage switch cabinet of higher height, in the process of plugging of drawer unit at high place, more laborious and inconvenient, and in lifting process, the problem of drawer unit accidental falling damage easily occurs.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage switchgear technology, and in particular to an MNS quick-connect low-voltage switchgear. Background Technology

[0002] MNS quick-connect low-voltage switchgear is an advanced low-voltage switchgear designed with modular and intelligent components. The switchgear compartments can be divided into drawer units, busbar compartments, and cable compartments. The functions of each unit are relatively independent and the areas are strictly separated by continuous metal plates or flame-retardant plates.

[0003] The existing MNS low-voltage switchgear drawers cannot maintain a stable airflow direction during use, which easily leads to heat accumulation and makes it inconvenient to restrict the pulling of the drawers; therefore, they do not meet the current requirements. To address this, we propose a new type of MNS low-voltage switchgear. The existing patent (publication number: CN223066682U) discloses a new type of MNS low-voltage switchgear. This utility model can effectively maintain the stability of the airflow direction and improve the heat dissipation effect by directional ventilation of the drawers of the MNS low-voltage switchgear. It is also convenient to limit the front and back of the drawer to be pulled out, making it easy to use.

[0004] To address the aforementioned issues, existing patents have provided solutions. However, the drawer units of some existing MNS low-voltage switchgear weigh several kilograms. For some taller MNS low-voltage switchgear, inserting and removing the drawer units at higher positions is quite laborious and inconvenient. Furthermore, during the lifting process, the drawer units are prone to accidental drop and damage.

[0005] To address this, a MNS quick-connect low-voltage switchgear is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide an MNS quick-connect low-voltage switchgear, which can solve the problem that the drawer units of some existing MNS low-voltage switchgear weigh several kilograms. For some MNS low-voltage switchgear with higher height, it is more difficult and inconvenient to insert and remove the drawer units at higher heights, and the drawer units are prone to accidental drop and damage during the lifting process.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an MNS quick-connect low-voltage switchgear, comprising an MNS quick-connect low-voltage switchgear body and several drawer unit bodies, wherein a bearing mechanism is provided on the front side of the MNS quick-connect low-voltage switchgear body, a lifting mechanism is provided at the bottom of the bearing mechanism, and a geared motor is provided on the top of the MNS quick-connect low-voltage switchgear body. The supporting mechanism includes a carrier plate, several grooves and a rotating roller. The grooves are formed on the top of the carrier plate, and the rotating roller is rotatably connected inside the grooves. The rotating roller is made of thermoplastic polyurethane.

[0008] Preferably, the lifting mechanism includes a lifting frame, a slot, and a lead screw. The slot is located inside the lifting frame, and the lead screw is threaded into the lifting frame. The surface of the lifting frame is in active contact with the left side of the MNS quick-connect low-voltage switchgear body.

[0009] Preferably, both sides of the bottom of the lifting frame are fixedly connected to support legs.

[0010] Preferably, the bottom of the output shaft of the geared motor is fixedly connected to the top of the lead screw, a fixing frame is fixedly fitted on the surface of the geared motor, the bottom of the fixing frame is fixedly connected to the top of the MNS quick-connect low-voltage switch cabinet body, and several heat dissipation slots are opened inside the fixing frame.

[0011] Preferably, a support block is fixedly connected to the bottom left side of the MNS quick-connect low-voltage switchgear body, a bearing is provided on the top of the support block, the surface of the lead screw is fixedly connected to the inner wall of the bearing, and the bottom of the outer wall of the bearing is fixedly connected to the top of the support block.

[0012] Preferably, a limit ring is fixedly connected to the top left side of the MNS quick-connect low-voltage switchgear body, and the lead screw is movably connected inside the limit ring.

[0013] Preferably, a plug is fixedly connected to the rear side of the bottom of the carrier plate, the plug being movably inserted into the inside of the slot, and handles are fixedly connected to both sides of the carrier plate.

[0014] Preferably, a support rod is fixedly connected to the bottom of the carrier plate, and the rear side of the support rod contacts the front side of the lifting frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This application sets up a support mechanism with a carrier plate as the core. The top roller is made of thermoplastic polyurethane, which reduces friction and avoids damaging the drawer unit body due to its softness and smoothness. It also makes it easy to push the drawer unit body to move. The carrier plate is connected to the lifting frame slot through the bottom plug. The handles on both sides are easy to operate. The bottom support rod contacts the lifting frame to enhance the support stability. When the carrier plate is not in use, it can be removed by pulling out the plug through the handle. This saves the front space of the MNS quick-connect low-voltage switch cabinet body and achieves stable support and flexible storage of the drawer unit body. 2. This application incorporates a lifting mechanism that uses an external controller to control the rotation of a geared motor. The geared motor then drives a lead screw via its output shaft. The lead screw engages with the lifting frame via a threaded connection, using threaded transmission to lift the carrier plate and drawer unit body. This adapts to the insertion and removal requirements of the drawer unit body of the high-MNS quick-connect low-voltage switchgear, saving effort and preventing falls. The bottom legs of the lifting frame provide support for the lifting frame's landing. The geared motor is fixed by a mounting bracket and heats up through a heat dissipation groove. The lead screw is connected to the support block via a bearing, and a limit ring further guides the lead screw, improving the smoothness of its rotation and ensuring a stable and reliable lifting process. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the MNS quick-connect low-voltage switchgear of this utility model; Figure 2 This is a three-dimensional exploded view of the transfer roller and groove of this utility model; Figure 3 This is a three-dimensional connection diagram of the lifting mechanism in this utility model; Figure 4 This is a three-dimensional structural diagram of the bottom of the carrier plate in this utility model; Figure 5 This is a three-dimensional schematic diagram of the connection between the lead screw and the bearing in this utility model; Figure 6 This utility model Figure 1 A magnified view of a portion of point A in the middle.

[0017] In the diagram, 1. MNS quick-connect low-voltage switchgear body; 2. Lifting mechanism; 201. Lifting frame; 202. Slot; 203. Lead screw; 3. Handle; 4. Bearing mechanism; 401. Carrier plate; 402. Groove; 403. Rotary roller; 5. Insert block; 6. Support leg; 7. Support rod; 8. Bearing; 9. Support block; 10. Gear motor; 11. Fixing frame; 12. Heat dissipation groove; 13. Limit ring; 14. Drawer unit body. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-6 The present invention provides the following technical solution: An MNS quick-connect low-voltage switchgear includes an MNS quick-connect low-voltage switchgear body 1 and several drawer unit bodies 14. A bearing mechanism 4 is provided on the front side of the MNS quick-connect low-voltage switchgear body 1, a lifting mechanism 2 is provided at the bottom of the bearing mechanism 4, and a geared motor 10 is provided on the top of the MNS quick-connect low-voltage switchgear body 1. The supporting mechanism 4 includes a carrier plate 401, several grooves 402 and a rotating roller 403. The grooves 402 are formed on the top of the carrier plate 401, and the rotating roller 403 is rotatably connected inside the grooves 402. The material of the rotating roller 403 is thermoplastic polyurethane.

[0020] In this embodiment: When installing the drawer unit body 14, it is placed on the thermoplastic polyurethane roller 403 on top of the carrier plate 401. The softness and smoothness of the roller 403 can reduce friction and avoid injury, making it easy to push. After the hand supports it for stability, the geared motor 10 is controlled to rotate by the external controller. The motor drives the lead screw 203 to rotate. Because the lead screw 203 is threadedly connected to the lifting frame 201 and the lifting frame 201 is in contact with the left side of the MNS quick-connect low-voltage switchgear body 1, the lifting frame 201 will drive the carrier plate 401 and the drawer unit body 14 to move upward. After reaching a suitable height, the drawer unit body 14 is pushed into the MNS quick-connect low-voltage switchgear body 1. When pulling it out, the carrier plate 401 moves to the corresponding position. The drawer unit body 14 is positioned to receive the pulled-out unit. The geared motor 10 is controlled by an external controller to rotate in the opposite direction, causing the carrier plate 401 to be lowered. This prevents the drawer unit body 14 from falling. The insertion and removal of the drawer unit body 14 of the MNS quick-connect low-voltage switchgear body 1, which is relatively tall, is easier. When the carrier plate 401 is not in use, the insert block 5 can be pulled out of the slot 202 by the handle 3 to remove the carrier plate 401, thus avoiding space occupation. This solves the problem that the drawer units of some existing MNS low-voltage switchgear weigh several kilograms. For some tall MNS low-voltage switchgear, the insertion and removal of drawer units at high positions is relatively laborious and inconvenient, and the drawer unit is prone to accidental falling and damage during the lifting process.

[0021] Specifically, such as Figure 3 As shown, the lifting mechanism 2 includes a lifting frame 201, a slot 202 and a lead screw 203. The slot 202 is opened inside the lifting frame 201, and the lead screw 203 is threadedly connected inside the lifting frame 201. The surface of the lifting frame 201 is in active contact with the left side of the MNS quick-connect low-voltage switchgear body 1.

[0022] Specifically, such as Figure 3 As shown, support legs 6 are fixedly connected to both sides of the bottom of the lifting frame 201.

[0023] Specifically, such as Figure 6As shown, the bottom of the output shaft of the geared motor 10 is fixedly connected to the top of the lead screw 203. A fixing frame 11 is fixedly fitted on the surface of the geared motor 10. The bottom of the fixing frame 11 is fixedly connected to the top of the MNS quick-connect low-voltage switch cabinet body 1. Several heat dissipation slots 12 are opened inside the fixing frame 11.

[0024] In this embodiment: the lifting mechanism 2 works in conjunction with the lifting frame 201, slot 202 and lead screw 203. The external controller controls the rotation of the geared motor 10, which in turn drives the lead screw 203 to rotate, thus achieving stable lifting and lowering of the carrier plate 401. The fixing frame 11 enhances the installation stability of the geared motor 10, and the heat dissipation slot 12 ensures the heat dissipation efficiency of the motor and improves the reliability of equipment operation.

[0025] Specifically, such as Figure 1 and Figure 5 As shown, a support block 9 is fixedly connected to the bottom left side of the MNS quick-connect low-voltage switchgear body 1. A bearing 8 is provided on the top of the support block 9. The surface of the lead screw 203 is fixedly connected to the inner wall of the bearing 8, and the bottom of the outer wall of the bearing 8 is fixedly connected to the top of the support block 9.

[0026] Specifically, such as Figure 6 As shown, a limit ring 13 is fixedly connected to the top left side of the MNS quick-connect low-voltage switchgear body 1, and a screw 203 is movably connected inside the limit ring 13.

[0027] In this embodiment: the lead screw 203 is rotatably connected to the support block 9 through the bearing 8, thereby providing rotational support for the lead screw 203 and enabling the lead screw 203 to rotate stably. The limiting ring 13 limits and guides the lead screw 203, further improving the rotational stability of the lead screw 203 and preventing the lead screw 203 from shaking and affecting the lifting accuracy.

[0028] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, a plug 5 is fixedly connected to the rear side of the bottom of the carrier plate 401. The plug 5 is movably inserted into the inside of the slot 202. Handles 3 are fixedly connected to both sides of the carrier plate 401.

[0029] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, a support rod 7 is fixedly connected to the bottom of the carrier plate 401, and the rear side of the support rod 7 contacts the front side of the lifting frame 201.

[0030] In this embodiment: the insert 5 cooperates with the slot 202 to enable quick assembly and disassembly of the carrier plate 401, the handle 3 facilitates the lifting operation of the carrier plate 401, and the rear side of the support rod 7 contacts the lifting frame 201 to enhance the support strength of the carrier plate 401, which not only ensures the load-bearing stability, but also allows the carrier plate 401 to be pulled up by the handle 3, so that the insert 5 and the slot 202 can be separated to remove the carrier plate 401, saving space.

[0031] Working principle: When installing the drawer unit body 14, the drawer unit body 14 can be placed on the rotating roller 403 on top of the carrier plate 401. The rotating roller 403 is made of thermoplastic polyurethane, which has a certain degree of softness and smoothness, reducing the friction between the drawer unit body 14 and the carrier plate 401 and preventing the rotating roller 403 from damaging the drawer unit body 14. At the same time, it is easy to push the drawer unit body 14 to move. At this time, the drawer unit body 14 is supported by hand to maintain stability. Then, the geared motor 10 is controlled to rotate by an external controller. The bottom of the output shaft of the geared motor 10 is fixedly connected to the top of the lead screw 203, driving the lead screw 203 to rotate. The lead screw 203 is threadedly connected to the inside of the lifting frame 201, and the surface of the lifting frame 201 is flush with the M The left side of the NS quick-connect low-voltage switchgear body 1 contacts the lifting frame 201. When the lead screw 203 rotates, the lifting frame 201, through threaded transmission, moves the carrier plate 401 and the drawer unit body 14 on top of the carrier plate 401 upwards. This allows the drawer unit body 14 to be easily moved to a suitable height aligned with the corresponding installation position inside the NS quick-connect low-voltage switchgear body 1. The drawer unit body 14 is then pushed backwards to facilitate insertion into the NS quick-connect low-voltage switchgear body 1. When the drawer unit body 14 needs to be removed, the carrier plate 401 moves to the front of the drawer unit body 14 to be removed. After the drawer unit body 14 is removed, the carrier plate 401 supports it. Then, the controller controls the geared motor 10 to rotate in the reverse direction. The drive screw 203 rotates in the reverse direction, causing the lifting frame 201 to lower the carrier plate 401 and the drawer unit body 14. This method is particularly convenient and labor-saving when inserting or removing the drawer unit body 14 from the taller MNS quick-connect low-voltage switchgear body 1, effectively preventing accidental drop and damage to the drawer unit body 14. The support legs 6 fixedly connected to both sides of the bottom of the lifting frame 201 provide stable support when the lifting frame 201 is lowered to the ground. A fixing frame 11 is fixedly fitted onto the surface of the geared motor 10. The bottom of the fixing frame 11 is fixedly connected to the top of the MNS quick-connect low-voltage switchgear body 1. The fixing frame 11 fixes the geared motor 10, preventing it from shaking during operation. At the same time, several openings are made inside the fixing frame 11. A heat dissipation slot 12 ensures heat dissipation for the geared motor 10. The lead screw 203 is rotatably connected to the support block 9 via the bearing 8. The support block 9 is fixed to the bottom left side of the MNS quick-connect low-voltage switchgear body 1, making the rotation of the lead screw 203 more stable and smooth. The lead screw 203 is movably connected inside the limit ring 13, which is fixed to the top left side of the MNS quick-connect low-voltage switchgear body 1, further limiting and guiding the rotation of the lead screw 203, ensuring that the lead screw 203 will not deviate when rotating, and improving the stability of the overall structure. When the carrier plate 401 supports the drawer unit body 14, the insert block 5 on the rear bottom side of the carrier plate 401 is movably inserted into the slot 202 inside the lifting frame 201, realizing the connection between the carrier plate 401 and the lifting frame 201.The handles 3 on both sides of the carrier plate 401 facilitate hand operation. When the carrier plate 401 supports the drawer unit body 14, the rear side of the support rod 7 at the bottom of the carrier plate 401 contacts the front side of the lifting frame 201. With the support of the support rod 7, the carrier plate 401 provides more stable and reliable support for the drawer unit body 14. When the carrier plate 401 is no longer needed, the handles 3 can be used to pull the carrier plate 401 upwards, disengaging the insert 5 from the slot 202, thus completing the removal of the carrier plate 401. This avoids the carrier plate 401 occupying the front space of the MNS quick-connect low-voltage switchgear body 1, ensuring that the normal operation of the drawer unit body 14 and the MNS quick-connect low-voltage switchgear body 1 is not affected. This solves the problem that some existing MNS low-voltage switchgear drawer units weigh several kilograms, which is problematic for... For some high-height MNS low-voltage switchgear, inserting and removing the drawer units at higher positions is laborious and inconvenient. Furthermore, during lifting, the drawer units are prone to accidental drop and damage. It should be noted that the lifting frame 201, insert block 5, carrier plate 401, and support rod 7 are all made of alumina ceramic. Alumina ceramic has high rigidity and is not easily deformed, ensuring stable support and lifting of the drawer unit body 14. Additionally, the surface of the lifting frame 201 can be smoothly processed to avoid unnecessary wear at the contact points with the MNS quick-connect low-voltage switchgear body 1. Both the MNS quick-connect low-voltage switchgear body 1 and the geared motor 10 are existing, publicly available, and mature technologies, powered by an external power supply. Their basic mechanisms will not be elaborated here.

[0032] 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, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An MNS quick-connect low-voltage switchgear, comprising an MNS quick-connect low-voltage switchgear body (1) and a plurality of drawer unit bodies (14), characterized in that: The front side of the MNS quick-connect low-voltage switchgear body (1) is provided with a bearing mechanism (4), the bottom of the bearing mechanism (4) is provided with a lifting mechanism (2), and the top of the MNS quick-connect low-voltage switchgear body (1) is provided with a geared motor (10). The bearing mechanism (4) includes a carrier plate (401), several grooves (402) and a rotating roller (403). The grooves (402) are opened on the top of the carrier plate (401), and the rotating roller (403) is rotatably connected inside the grooves (402). The material of the rotating roller (403) is thermoplastic polyurethane.

2. The MNS quick-connect low-voltage switchgear according to claim 1, characterized in that: The lifting mechanism (2) includes a lifting frame (201), a slot (202) and a lead screw (203). The slot (202) is opened inside the lifting frame (201), and the lead screw (203) is threaded inside the lifting frame (201). The surface of the lifting frame (201) is in active contact with the left side of the MNS quick-connect low-voltage switchgear body (1).

3. The MNS quick-connect low-voltage switchgear according to claim 2, characterized in that: Both sides of the bottom of the lifting frame (201) are fixedly connected to support legs (6).

4. The MNS quick-connect low-voltage switchgear according to claim 2, characterized in that: The bottom of the output shaft of the geared motor (10) is fixedly connected to the top of the lead screw (203). A fixed frame (11) is fixedly fitted on the surface of the geared motor (10). The bottom of the fixed frame (11) is fixedly connected to the top of the MNS quick-connect low-voltage switch cabinet body (1). Several heat dissipation slots (12) are opened inside the fixed frame (11).

5. The MNS quick-connect low-voltage switchgear according to claim 2, characterized in that: A support block (9) is fixedly connected to the bottom left side of the MNS quick-connect low-voltage switchgear body (1). A bearing (8) is provided on the top of the support block (9). The surface of the lead screw (203) is fixedly connected to the inner wall of the bearing (8). The bottom of the outer wall of the bearing (8) is fixedly connected to the top of the support block (9).

6. The MNS quick-connect low-voltage switchgear according to claim 2, characterized in that: The top left side of the MNS quick-connect low-voltage switchgear body (1) is fixedly connected to a limit ring (13), and the lead screw (203) is movably connected inside the limit ring (13).

7. The MNS quick-connect low-voltage switchgear according to claim 2, characterized in that: A plug (5) is fixedly connected to the rear side of the bottom of the carrier plate (401). The plug (5) is movably inserted into the inside of the slot (202). Handles (3) are fixedly connected to both sides of the carrier plate (401).

8. The MNS quick-connect low-voltage switchgear according to claim 2, characterized in that: The bottom of the carrier plate (401) is fixedly connected to a support rod (7), and the rear side of the support rod (7) contacts the front side of the lifting frame (201).

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