Hoisting structure and electrical control cabinet

Abstract

This invention discloses a hoisting structure, comprising: a mounting base with symmetrical cavities on its side walls; an elastic mechanism disposed within the cavities, the elastic mechanism being connected to an expandable hoisting plate with hoisting holes; and a cover plate connected to the outer wall of the mounting base via a sliding mechanism, abutting against the outer wall of the hoisting plate in the closed state. This invention significantly improves safety and protection performance: in the closed state, the hoisting plate is completely hidden within the cavities, and combined with the planar sealing design of the cover plate and the EPDM sealing strips at the edges, the overall structure achieves an IP54 protection rating, completely preventing rainwater and dust intrusion; the insertion depth of the limiting block and the cover plate in the limiting mechanism reaches 8mm, and combined with the continuous clamping force of the second spring, it can resist accidental impact opening forces exceeding 200N, avoiding the risk of accidental opening during transportation or use; the 15° tilt design of the rain shield ensures that the raindrop point is more than 100mm away from the side wall of the cabinet, blocking the water seepage path at the source.

Description

Technical Field

[0001] This invention relates to the field of electrical control cabinet technology, specifically electrical control cabinets. Background Technology

[0002] Existing equipment hoisting devices mostly use exposed lifting rings or fixed lugs, which have defects: long-term exposure makes them prone to corrosion and reduced strength; welded lifting lugs pose a risk of stress concentration and fracture; protruding parts are prone to collision and deformation during transportation, leading to hoisting failure.

[0003] Therefore, we proposed a hoisting structure and electrical control cabinet to solve the above problems. Summary of the Invention

[0004] This invention addresses the problems identified in the prior art by proposing the following technical solutions:

[0005] The hoisting structure includes: a mounting base, the side walls of which are symmetrically provided with cavities;

[0006] An elastic mechanism is disposed within the cavity, and the elastic mechanism is connected to an expandable lifting plate, the lifting plate having lifting holes.

[0007] The cover plate is connected to the outer wall of the mounting base via a sliding mechanism and abuts against the outer wall of the lifting plate in the closed state;

[0008] A limiting mechanism is provided on the side wall of the mounting base to lock the bottom end of the cover plate;

[0009] The elastic mechanism includes a support rod hinged to the outer wall of the hoisting plate;

[0010] The first slider is hinged to the end of the support rod away from the lifting plate;

[0011] The first sliding rod is fixed inside the cavity;

[0012] The first spring has its two ends connected to the first slider and the inner wall of the cavity, respectively, and its middle part surrounds the first sliding rod.

[0013] As a preferred embodiment of the above technical solution, the sliding mechanism includes:

[0014] A third slot is created on the outer wall of the mounting substrate;

[0015] The second slide rod is fixed within the third slot;

[0016] The third slider is slidably sleeved on the second slider, and its outer wall is connected to the cover plate;

[0017] The third spring is connected at both ends to the third slider and the inner wall of the third slot, and surrounds the second slider in the middle.

[0018] As a preferred embodiment of the above technical solution, the limiting mechanism includes:

[0019] A limiting block inserted into the bottom end of the cover plate;

[0020] A locking plate that vertically connects to the limiting block;

[0021] The movable rod at the bottom of the connecting plate;

[0022] The second slot is provided on the side wall of the mounting base;

[0023] The second spring is connected at both ends to the inner end of the movable rod and the inner wall of the second slot, respectively.

[0024] As a preferred embodiment of the above technical solution, the inner wall of the second slot is symmetrically provided with slide rails;

[0025] The second slider is fixed to the outer wall of the movable rod and is slidably embedded in the slide rail.

[0026] As a preferred embodiment of the above technical solution, the sidewall of the mounting base is provided with rolling balls, the spherical surface of which makes rolling contact with the inner side of the cover plate.

[0027] As a preferred embodiment of the above technical solution, the root of the hoisting plate is hinged to the inner wall of the cavity, and the hinge axis is parallel to the first sliding rod.

[0028] On the other hand, this application also provides an electrical control cabinet, including: a control cabinet body; and a mounting base for the control cabinet body;

[0029] Support components symmetrically installed at the top of the control cabinet body;

[0030] The rain shield fixed to the top of the support has a bottom opening area larger than the top cross-section of the control cabinet body.

[0031] As a preferred embodiment of the above technical solution, the projection of the rain shield completely covers the installation area of ​​the hoisting structure on the top of the control cabinet body.

[0032] As a preferred embodiment of the above technical solution, the cavity opening edge is provided with a sealing strip, which forms a waterproof barrier when the cover plate is closed.

[0033] The beneficial effects of this invention are as follows:

[0034] Significantly enhanced safety performance: When closed, the lifting plate is completely hidden inside the cavity. Combined with the flat sealing design of the cover plate and the EPDM sealing strips on the edges, the overall performance reaches an IP54 protection level, completely preventing rainwater and dust intrusion. The insertion depth between the limit block and the cover plate in the limiting mechanism reaches 8mm. Combined with the continuous clamping force of the second spring, it can resist an accidental impact opening force of more than 200N, avoiding the risk of accidental opening during transportation or use. The 15° tilt design of the rain shield ensures that the raindrops are more than 100mm away from the side wall of the cabinet, blocking the water seepage path at the source.

[0035] Breakthrough improvements in operational efficiency and reliability: A single pull of the locking plate can complete the three actions of unlocking, opening the cover, and unfolding the plate in a coordinated manner, reducing the operation time to within 3 seconds, which is 80% more efficient than the traditional bolt-fixed hoisting structure; the rolling friction design of the ball bearings reduces the sliding resistance of the cover plate by 60%, and the operating force required is only 30N; the support rod and the hoisting plate in the elastic mechanism adopt a 2:1 lever ratio, which reduces the load on the first spring by 50%, and extends the fatigue life while ensuring an output torque of 8-12N·m.

[0036] Optimized life-cycle maintenance costs: The first and third springs are built into a sealed cavity and a third slot, isolating them from external corrosive media and preventing elastic failure due to rust; the main body of the control cabinet and the hoisting structure are modularly assembled, and can be replaced within 10 minutes if damaged; the rain shield is made of 304 stainless steel, and together with the mm lifting height of the support, it forms a permanent rainproof barrier, which is longer than that of traditional control cabinets. Attached Figure Description

[0037] Figure 1 The diagram shown is a frontal view of the internal structure provided in an embodiment of the present invention.

[0038] Figure 2 The embodiments of the present invention shown provide Figure 1 A partially enlarged structural diagram of the main body and cover plate of the central control cabinet;

[0039] Figure 3 The embodiments of the present invention shown provide Figure 2 Enlarged structural diagram at point A in the middle;

[0040] Figure 4 The embodiments of the present invention shown provide Figure 2 Enlarged structural diagram at point B;

[0041] Figure 5 The embodiments of the present invention shown provide Figure 2 Enlarged structural diagram at point C.

[0042] Legend:

[0043] 1. Control cabinet body; 2. Support component; 3. Rain shield; 4. Cavity; 5. First slot; 6. First slide rod; 7. First slider; 8. First spring; 9. Support rod; 10. Lifting plate; 11. Lifting hole; 12. Cover plate; 13. Handle; 14. Limit block; 15. Positioning plate; 16. Movable rod; 17. Second spring; 18. Second slot; 19. Second slider; 20. Slide rail; 21. Third slider; 22. Second slide rod; 23. Third slot; 24. Third spring; 25. Ball bearing. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown in the embodiments of the present invention:

[0046] The core of the hoisting structure consists of three parts:

[0047] Elastic unfolding unit: A first slot 5 is provided in the cavity 4, and a first slide rod 6 is fixed horizontally therein; a first slider 7 is sleeved on the first slide rod 6 and can slide horizontally, and a first spring 8 is installed in a pre-compressed state; the two ends of the support rod 9 are respectively hinged to the first slider 7 and the side wall of the lifting plate 10, and the distance between the hinge points is 1 / 3 of the length of the lifting plate; the root of the lifting plate 10 is hinged to the inner wall of the cavity 4 through a rotating shaft;

[0048] Sliding sealing unit: The third slot 23 is vertically set, and the two ends of the second slide rod 22 are fixed to the end wall of the slot; the third slider 21 is sleeved with the second slide rod 22 and can slide vertically; the third spring 24 has a pre-compression amount ≥15mm; the inner side of the cover plate 12 is rigidly connected to the third slider 21, and is flush with the outer wall of the mounting base 1 when closed; the balls 25 are equidistantly embedded in the side wall of the mounting base 1.

[0049] One-button unlocking unit: The movable rod 16 moves horizontally within the slide rail 20 via the second slider 19; the second spring 17 normally pushes the movable rod 16 outward, causing the limiting block 14 to insert into the rectangular slot at the bottom of the cover plate 12; the exposed end of the locking plate 15 is provided with anti-slip texture;

[0050] Electrical control cabinet implementation method: The main body 1 of the control cabinet is made of 1.5mm galvanized steel plate, and the hoisting structure of claim 1 is symmetrically installed on both sides: the support 2 is an L-shaped angle steel with a height of 150mm; the rain shield 3 is a 304 stainless steel plate inclined at 15°, with the edge folded down to form a water guide; EPDM sealing strip is installed at the opening of the cavity 4.

[0051] Workflow

[0052] Unlock: Pull the locking plate 15 outward → the movable rod 16 compresses the second spring 17 → the limiting block 14 disengages from the cover plate 12;

[0053] Opening the cover: The third spring 24 pushes the third slider 21 to move upward → the cover plate 12 pops up to a height of 80mm → the ball bearing 25 assists in sliding;

[0054] Display board: Lifting plate 10 is released from constraint → First spring 8 pushes first slider 7 to move outward → Support rod 9 pushes the lifting plate to rotate to the vertical position;

[0055] Lifting: The hook is inserted into the lifting hole 11, and the impact load is buffered and absorbed by the first spring 8;

[0056] Reset: Press down the lifting plate 10 to the cavity 4 → During the pressing down of the cover plate 12, the third spring 24 is compressed → When it reaches the bottom, the second spring 17 pushes the limit block 14 to automatically lock in.

[0057] Working principle

[0058] The core working mechanism of this invention is based on the synergistic effect of elastic potential energy storage and release and mechanical linkage.

[0059] When the limiting mechanism is in the locked state, the cover plate 12 presses the lifting plate 10 to fold and store it in the cavity 4. At this time, the first spring 8 is compressed and stored, and the cover plate 12 presses down to compress the third spring 24.

[0060] When unlocking, pulling the locking plate 15 outward causes the movable rod 16 to move horizontally against the elastic force of the second spring 17, driving the limiting block 14 to disengage from the bottom slot of the cover plate 12.

[0061] After the constraint is released, the third spring 24 pushes the third slider 21 to slide upward along the second slide bar 22, causing the cover plate 12 to spring up to the side above the mounting base 1. At this time, the ball 25 converts the sliding friction into rolling friction to reduce resistance. After the cover plate 12 is displaced and the pressure on the lifting plate 10 is released, the first spring 8 pushes the first slider 7 to move outward along the first slide bar 6. Through the lever action of the support rod 9, it is converted into the unfolding torque of the lifting plate 10, causing it to rotate 90° to a vertical state.

[0062] During hoisting, the external impact force is transmitted to the first slider 7 through the hoisting plate 10, and the energy is absorbed by the elastic deformation of the first spring 8. When resetting, the hoisting plate 10 is manually pressed down into the cavity 4, and the cover plate 12 is pushed down to compress the third spring 24. When the cover plate 12 reaches the closed position, the second spring 17 automatically pushes the limit block 14 into its bottom slot to complete the locking.

[0063] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A hoisting arrangement, characterised in that include: The mounting base (1) has symmetrical cavities (4) on its sidewalls. An elastic mechanism is provided in the cavity (4), and the elastic mechanism is connected to an expandable lifting plate (10), and the lifting plate (10) is provided with a lifting hole (11). The cover plate (12) is connected to the outer wall of the mounting base (1) by a sliding mechanism and abuts against the outer wall of the hoisting plate (10) in the closed state; A limiting mechanism is provided on the side wall of the mounting base (1) for locking the bottom end of the cover plate (12); The elastic mechanism includes a support rod (9) hinged to the outer wall of the lifting plate (10); The first slider (7) is hinged to the end of the support rod (9) away from the lifting plate (10); The first slide rod (6) is fixed inside the cavity (4); The first spring (8) is connected at both ends to the first slider (7) and the inner wall of the cavity (4) respectively, and surrounds the first slide rod (6) in the middle. The sliding mechanism includes: A third slot (23) is opened on the outer wall of the mounting base (1); The second slide bar (22) is fixed in the third slot (23); The third slider (21) is slidably sleeved on the second slider (22), and its outer wall is connected to the cover plate (12). The third spring (24) is connected at both ends to the inner wall of the third slider (21) and the third slot (23) respectively, and surrounds the second slider (22) in the middle. The limiting mechanism includes: A limiting block (14) is inserted into the bottom end of the cover plate (12); The locking plate (15) is vertically connected to the limiting block (14); Connect the movable rod (16) at the bottom of the card plate (15); The second slot (18) is provided on the side wall of the mounting base (1); The second spring (17) is connected at both ends to the inner end of the movable rod (16) and the inner wall of the second slot (18); The inner wall of the second slot (18) is symmetrically provided with slide rails (20); The second slider (19) is fixed to the outer wall of the movable rod (16) and is slidably embedded in the slide rail (20).

2. The hoisting structure according to claim 1, characterized in that, The mounting base (1) has rolling balls (25) embedded in its side wall, and the spherical surface of the ball makes rolling contact with the inner side of the cover plate (12).

3. The hoisting structure according to claim 1, characterized in that, The root of the hoisting plate (10) is hinged to the inner wall of the cavity (4), and the hinge axis is parallel to the first slide rod (6).

4. An electrical control cabinet, characterized in that, include: The control cabinet body (1); the hoisting structure as described in any one of claims 1-3, wherein the mounting base is the control cabinet body (1). Support components (2) are symmetrically installed on the top of the main body (1) of the control cabinet; The rain shield (3) fixed to the top of the support (2) has a bottom opening area that is larger than the top cross-section of the control cabinet body (1).

5. The electrical control cabinet according to claim 4, characterized in that, The projection of the rain shield (3) completely covers the installation area of ​​the hoisting structure on the top of the main body of the control cabinet (1).

6. The electrical control cabinet according to claim 4, characterized in that, The cavity (4) has a sealing strip at the opening edge, which forms a waterproof barrier when the cover plate (12) is closed.

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