An appliance cabinet hanger with a scissor mechanism

Abstract

This utility model discloses an electrical cabinet hoist with a scissor mechanism, belonging to the field of electrical cabinet hoisting equipment. It includes a U-shaped open rectangular frame composed of long and short rods, with a hoisting circular hole in the center of the frame. Each of the four ends of the long rod has a hook that can move along its axis. The hooks are linked by a scissor mechanism, with the connecting hole in the middle of the scissor mechanism concentric with the hoisting circular hole. A bidirectional screw assembly is provided on one side of the scissor mechanism; rotating a handwheel can drive the scissor mechanism to unfold or fold, controlling the extension and retraction of the hooks. This hoist can precisely adapt to electrical cabinets with different lifting ring spacings, achieving stable and safe hoisting. It solves the problems of poor adaptability and unstable hoisting of existing hoists, improving the efficiency and safety of electrical cabinet hoisting operations in power distribution rooms.

Description

Technical Field

[0001] This utility model relates to the technical field of electrical cabinet hoisting equipment, specifically an electrical cabinet hoist with a scissor mechanism, used for hoisting electrical cabinets in places such as power distribution rooms, and is adapted to electrical cabinet lifting rings to achieve safe and precise hoisting. Background Technology

[0002] In the installation or replacement of electrical cabinets in power distribution rooms, traditional hoisting methods present numerous problems due to the compact space and varying sizes and weights of the cabinets. Conventional hooks are difficult to adapt to the different spacing of the lifting rings on the cabinets, and alignment between the hook and ring is challenging during hoisting, easily leading to tilting or falling of the cabinets and posing safety hazards. Furthermore, for different cabinet specifications, frequent hook changes or adjustments to hoisting tools are necessary, resulting in low work efficiency. Existing hoisting frames have simple structures and lack the ability to flexibly adapt to ring spacing and precise alignment, failing to meet the needs for efficient and safe hoisting of electrical cabinets in power distribution rooms. Therefore, there is an urgent need for a hoisting frame for electrical cabinets that can precisely adapt and provide stable hoisting. Utility Model Content

[0003] The purpose of this invention is to provide an electrical cabinet hanger with a scissor mechanism, solving the problems of poor adaptability and unstable lifting of existing hangers, and achieving precise and safe lifting of electrical cabinets with different ring spacings. The hanger includes a rectangular frame, hooks, a scissor mechanism, and a bidirectional screw assembly. The rectangular frame consists of long and short rods to accommodate the ring spacing of the electrical cabinet; four hooks are connected by the scissor mechanism and can move axially along the long rod. The connecting hole in the middle of the scissor mechanism is concentric with the lifting hole in the frame, ensuring concentricity during lifting; the bidirectional screw assembly on one side of the scissor mechanism drives the scissor mechanism to unfold or fold by rotating a handwheel, thereby controlling the extension and retraction of the hooks, achieving precise alignment and reliable connection between the hooks and the electrical cabinet rings. The hooks are designed with rollers and U-shaped pull plates to ensure smooth movement along the long rod and stable clamping with it.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] This utility model discloses an appliance cabinet hanger with a scissor mechanism, comprising a rectangular frame consisting of two long rods and two short rods. The two long rods are arranged in parallel, and the tops of the long rods are connected to the two parallel short rods. The two short rods are symmetrically arranged based on the line connecting the midpoints of the long rods. The short rods and long rods are connected by bolts to form a U-shaped open frame with open ends. A lifting hole is provided in the center of the frame. Four hooks are respectively set at both ends of the two long rods, and the hooks can move freely left and right along the long rods. The scissor mechanism includes two rods with a rotatable middle section. The scissor arms are hinged, with the hinge points concentric with the lifting holes of the frame. Each scissor arm has linear grooves at both ends, and four hooks are slidably mounted on the linear grooves of the lower scissor arms. The scissor arms also include a bidirectional screw located outside the short rod and parallel to it. One end of the bidirectional screw has a handwheel, and nuts are threaded onto both threaded sections of the bidirectional screw. Both nuts are rotatably hinged to a scissor mechanism. The bidirectional screw drives the angle of the two scissor arms to change, enabling the hooks to extend and retract.

[0006] Preferably, the hook includes a hook head, a U-shaped pull plate, rollers, and a pin. One end of the hook head has threads and a boss, and is installed in the center of the bottom plate of the U-shaped pull plate by threaded connection. There is a roller at the top and bottom of the U-shaped pull plate. The side of the U-shaped pull plate has an elongated hole. The roller passes through the elongated hole through the pin and is locked and positioned by a lock nut. The elongated hole is used to adjust the position of the roller so that the rollers at the top and bottom form a stable clamp with the long rod. The upper and lower rollers enable the hook to move freely left and right along the long rod.

[0007] Preferably, the linear groove is fitted on the outer edge of the threaded section of the hook head and supported on the boss of the hook head, so as to realize the linkage of the extension and retraction of the hook.

[0008] Preferably, the bidirectional screw has a left-hand thread at one end and a right-hand thread at the other end. When the handwheel is rotated, it can drive the scissor arm to unfold or fold, thereby controlling the extension and retraction of the hook.

[0009] Preferably, the spacing between the short bars is set to 250-350 mm to ensure that the frame structure is compatible with the hanging ring layout of most electrical cabinets.

[0010] Preferably, the rectangular frame is made of high-strength steel to have sufficient strength to support electrical cabinets of different weights.

[0011] Beneficial effects: The hanger in this application can be precisely adapted to electrical cabinets with different lifting ring spacing, achieving stable and safe hoisting, solving the problems of poor adaptability and unstable hoisting of existing hangers, and improving the efficiency and safety of electrical cabinet hoisting operations in power distribution rooms. Attached Figure Description

[0012] Figure 1 This is the front view of the hanger of this utility model.

[0013] Figure 2 This is a top view of the hanger of this utility model.

[0014] Figure 3 This is the front view of the hook of this utility model.

[0015] Figure 4 This is a side view of the hook of this utility model.

[0016] Figure 5 This is a top view of the hook of this utility model.

[0017] Figure 6 This is a schematic diagram of the tie rod assembly structure of this utility model. 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] In the description of the utility model, it should be noted that the terms "upper", "lower", and "both ends" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The following is in conjunction with the accompanying drawings. Figure 1-6 Detailed description of this utility model:

[0022] Rectangular frame: High-strength steel is selected to process long rods 4.1 and short rods 4.2. The two long rods 4.1 are placed in parallel, and the spacing is set according to the common electrical cabinet lifting ring spacing and adapted to different specifications. The top of the long rods 4.1 is connected to the two short rods 4.2 by bolts. The short rods 4.2 are symmetrical along the line connecting the midpoints of the long rods 4.1, with a spacing of about 300 mm, forming a U-shaped open rectangular frame. A lifting circular hole 4.3 is opened in the center of the frame.

[0023] Hook 4.5: Machining hook head 4.5.4, one end with thread and boss, the other end bent into a hook shape; making U-shaped pull plate 4.5.3, tapping the center of its base plate, and connecting hook head 4.5.4 by thread; installing rollers 4.5.1 on the upper and lower parts of U-shaped pull plate 4.5.3, and assembling them by pin 4.5.2 with oblong hole and lock nut. The oblong hole is used to adjust the position of roller 4.5.1 so that the upper and lower rollers 4.5.1 clamp with long rod 4.1, ensuring that hook 4.5 moves smoothly and stably along the axial direction of long rod 4.1.

[0024] Scissor mechanism 4.4: The scissor arm is made of high-strength steel. The scissor arm has a linear groove or elongated hole. The scissor mechanism 4.4 is installed in a rectangular frame so that the hinge in the middle of the scissor arm is concentric with the lifting circular hole 4.3. The linear groove of the scissor arm is fitted on the outer edge of the threaded section of the hook 4.5.4 and supported on the boss, so as to realize the linkage between the hook 4.5 and the scissor arm.

[0025] Bidirectional screw assembly: Machining a bidirectional screw 4.6.1, with a left-hand thread at one end and a right-hand thread at the other end, installing a handwheel 4.6.3 at one end, assembling a nut 4.6.2 on the threaded section, and hinged the nut 4.6.2 to the scissor arm of the scissor mechanism 4.4 via a pin, and mounting the bidirectional screw assembly parallel to the short rod 4.2 on one side of the rectangular frame.

[0026] Working process / method / principle:

[0027] In operation, first align the lifting rings at the top of the electrical cabinet so that the hooks 4.5 face the center hole of the lifting ring. The operator then rotates the handwheel 4.6.3 of the double-acting screw 4.6.1, driving the scissor arm to retract the hooks 4.5. Adjust the position of the lifting bracket so that the hooks 4.5 are aligned with the center holes of the four lifting rings at the top of the electrical cabinet. At this point, the four hooks 4.5 are positioned in the middle of the four lifting rings at the top of the electrical cabinet. Next, rotate the handwheel 4.6.3 in the opposite direction. The scissor mechanism 4.4 drives the hooks 4.5 to extend, and the four hooks 4.5 move diagonally towards one of the lifting rings until the hooks are fully inserted into the center hole of the lifting ring. Lock the hooks in place to complete the electrical cabinet lifting process. During the hoisting process, the scissor mechanism 4.4 is concentric with the hoisting hole 4.3 to ensure hoisting stability; the rollers 4.5.1 of the hook 4.5 are stably clamped with the long rod 4.1 and can move along the axial direction of the long rod 4.1 to accommodate electrical cabinets with different lifting ring spacing.

[0028] Finally, it should be noted that this utility model is not limited to the above embodiments, and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.

Claims

1. An appliance cabinet hanger with a scissor mechanism, characterized in that, The system includes a rectangular frame consisting of two long rods (4.1) and two short rods (4.2). The two long rods (4.1) are arranged in parallel, and the tops of the long rods (4.1) are connected to the two parallel short rods (4.2). The two short rods (4.2) are symmetrically arranged based on the line connecting the midpoints of the long rods (4.1). The short rods (4.2) and the long rods (4.1) are connected by bolts to form a U-shaped open frame with open ends. A lifting hole (4.3) is provided in the center of the frame. Four hooks (4.5) are respectively set at both ends of the two long rods (4.1), and the hooks (4.5) can move freely left and right along the long rods (4.1). The scissor mechanism (4.4) includes two scissor arms that are rotatably hinged in the middle. The hinge joint of the arm is concentric with the lifting hole (4.3) of the frame. Each scissor arm has a linear groove at both ends. Four hooks (4.5) are slidably set on the linear groove of the lower scissor arm. It also includes a double-acting screw (4.6.1) located outside the short rod (4.2) and parallel to the short rod (4.2). One end of the double-acting screw (4.6.1) is equipped with a handwheel (4.6.3). Nuts (4.6.2) are threadedly connected to the two threaded sections of the double-acting screw (4.6.1). The two nuts (4.6.2) are rotatably hinged to a scissor mechanism (4.4). The extension and retraction of the hooks (4.5) can be achieved by changing the angle of the two scissor arms through the action of the double-acting screw (4.6.1).

2. The appliance cabinet hanger with a scissor mechanism according to claim 1, characterized in that, The hook (4.5) includes a hook head (4.5.4), a U-shaped pull plate (4.5.3), rollers (4.5.1), and a pin (4.5.2). One end of the hook head (4.5.4) is threaded and has a boss, and is installed in the center of the bottom plate of the U-shaped pull plate (4.5.3) via a threaded connection. A roller (4.5.1) is provided at the top and bottom of the U-shaped pull plate (4.5.3). The sides of the U-shaped pull plate (4.5.3)... The upper part has an elongated hole. The roller (4.5.1) passes through the elongated hole via a pin (4.5.2) and is locked and positioned by a lock nut. The elongated hole is used to adjust the position of the roller (4.5.1) so that the upper and lower rollers (4.5.1) and the long rod (4.1) can form a stable clamp. The upper and lower rollers (4.5.1) allow the hook (4.5) to move freely left and right along the long rod (4.1).

3. An appliance cabinet hanger with a scissor mechanism according to claim 2, characterized in that, The linear groove is fitted on the outer edge of the threaded section of the hook head (4.5.4) and supported on the boss of the hook head (4.5.4) to realize the linkage of extension and retraction of the hook (4.5).

4. An appliance cabinet hanger with a scissor mechanism according to claim 1, characterized in that, The bidirectional screw (4.6.1) has a left-hand thread at one end and a right-hand thread at the other end. When the handwheel (4.6.3) is rotated, it can drive the scissor arm to unfold or fold, thereby controlling the extension and retraction of the hook (4.5).

5. An electrical cabinet hanger with a scissor mechanism according to claim 1, 2, 3, or 4, characterized in that, The spacing of the short bars (4.2) is set to 250-350 mm to ensure that the frame structure is compatible with the hanging ring layout of most electrical cabinets.

6. An appliance cabinet hanger with a scissor mechanism according to claim 1, characterized in that, The rectangular frame is made of high-strength steel to provide sufficient strength to support electrical cabinets of varying weights.

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