Electrical device for an elevator machine

Abstract

The utility model discloses a kind of lifting machinery electrical devices, belong to lifting equipment technical field, including chassis, inside its chassis is provided with inner chamber, the inside of lower end cylinder is inserted with connecting rod, the top of connecting rod is fixed with piston plate b that is closely matched with lower end cylinder inner side wall, the bottom of connecting rod is installed with self-locking universal wheel, the outside of chassis is provided with demodulation component that is communicated with inner chamber, the bottom of multiple lower end cylinders is fixed with bottom connection cylinder;When the device is used in uneven road in the utility model, multiple self-locking universal wheels are pressed to different degrees, the liquid inside inner chamber is automatically adjusted to the inside of different lower end cylinders, the hydraulic pressure inside multiple lower end cylinders is automatically adjusted to be basically same, so as to automatically adjust connecting rod in the inside of multiple lower end cylinders to be extended to same length, so as to automatically level chassis, so that chassis is always in the state of being basically horizontal, the levelness of chassis is adjusted to safe range, guarantee the safety of elevator use.

Description

Technical Field

[0001] This utility model belongs to the field of lifting equipment technology, specifically relating to an electrical device for lifting machinery. Background Technology

[0002] Mobile scissor lifts are versatile aerial work platforms. Their scissor-type mechanical structure provides high stability after the platform is raised, making them widely applicable in urban construction. Existing mobile scissor lifts move to the work site supported by wheels, and then raise and lower the platform by controlling the extension and retraction of hydraulic cylinders. To ensure the safety and stability of the platform, the lift's center of gravity should be perpendicular to the horizontal plane. However, due to the variable and complex working environment in urban construction, such as when the lift is in a suitable lifting position but the four wheels are at different ground levels, or when the ground slope is significant, the lift body may tilt. This can cause the lift to easily tip over after the platform is raised, reducing safety. Therefore, solutions have been proposed in existing technologies.

[0003] For example, Chinese Patent Publication No. CN218620246U discloses an electrical device for a lifting mechanism, including a chassis. A worktable is connected to the upper side of the chassis via a scissor-type mechanical assembly. An electrical switch and a level are installed on the worktable. An electrical box mounted on the chassis includes a gyroscope, a microcontroller, and a relay. A fixed base is installed at one end of the chassis, and lifting wheel assemblies are installed at the four corners of the chassis bottom. Each lifting wheel assembly includes a support wheel, which is rotatably mounted on one end of a connecting rod. The other end of the connecting rod is rotatably connected to a connecting seat one mounted on the bottom surface of the chassis. A hydraulic cylinder is rotatably connected to one end of the connecting rod, and the other end of the hydraulic cylinder is rotatably connected to a connecting seat two mounted on the bottom surface of the chassis. The beneficial effect of this utility model is that the electrical box detects the levelness of the chassis and adjusts the height of the four support wheels by controlling the extension and retraction of the hydraulic cylinder, thereby adjusting the levelness of the chassis to a safe range and ensuring the safety of the lifting mechanism.

[0004] When the device described in the above application is used on an uneven road surface, the hydraulic cylinders on each support wheel control the extension and retraction of the support wheels to adjust the device to a horizontal state. The control of multiple hydraulic cylinders makes its overall structure more complex and its investment and maintenance costs higher.

[0005] Therefore, there is a need for an electrical device for lifting machinery to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this utility model is to provide an electrical device for lifting machinery to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a lifting mechanical electrical device, including a chassis, wherein an inner cavity is opened inside the chassis, and a plurality of lower end cylinders communicating with the inner cavity are fixed on the bottom side of the chassis, a connecting rod is inserted inside the lower end cylinder, a piston plate b that fits tightly against the inner side wall of the lower end cylinder is fixed at the top of the connecting rod, a self-locking universal wheel is installed at the bottom of the connecting rod, a demodulation assembly communicating with the inner cavity is provided outside the chassis, and a bottom connecting cylinder is fixed on the bottom end of each of the plurality of lower end cylinders, and the self-locking universal wheel can be retracted into the bottom connecting cylinder.

[0008] It should be noted in the solution that the demodulation component includes a liquid cylinder fixed to the outer wall of the chassis and communicating with the inner cavity. A nut sleeve is fixed inside the end of the liquid cylinder away from the chassis. A threaded rod inserted into the liquid cylinder is threadedly connected to the nut sleeve. A piston plate a is fixed to one end of the threaded rod and fits tightly against the inner wall of the liquid cylinder.

[0009] It is worth noting that an end plate is fixed to one end of the threaded rod located outside the liquid cylinder, and a handle rod is fixed to the side of the end plate.

[0010] Furthermore, it should be noted that the surface of the handle is fitted with a rubber sleeve.

[0011] In a preferred embodiment, a plurality of the lower end cylinders are symmetrically distributed at the edge of the chassis.

[0012] Compared with the prior art, the lifting mechanical electrical device provided by this utility model has at least the following beneficial effects:

[0013] 1. When the device is used on an uneven surface, the self-locking casters contact the uneven ground, and the multiple self-locking casters are pressed to different degrees, causing the piston plates b inside the multiple lower end cylinders to move upward to different degrees. This allows the liquid inside the inner cavity to be automatically evenly distributed to the different lower end cylinders, and the hydraulic pressure inside the multiple lower end cylinders is automatically adjusted to be basically the same. This automatically adjusts the connecting rods inside the multiple lower end cylinders to extend to the same length, thereby automatically leveling the chassis and keeping the chassis in a basically level state. The levelness of the chassis is adjusted to a safe range, ensuring the safety of the lift. The overall leveling structure is relatively simple, and the automatic leveling results in low usage and maintenance costs.

[0014] 2. When used on a level surface, the hydraulic pressure inside the inner cavity is removed by the demodulation component, so that the self-locking casters can automatically retract into the bottom connecting cylinder under the action of the overall weight, so that multiple bottom connecting cylinders contact the level surface, effectively improving the overall stability of the placement. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall front view of the present invention;

[0016] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model. Figure 1 ;

[0018] Figure 4 for Figure 3 Enlarged structural diagram at point B;

[0019] Figure 5 This is a schematic cross-sectional view of the overall structure of this utility model. Figure 2 ;

[0020] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Demodulation assembly; 101. Liquid cylinder; 102. Piston plate a; 103. Threaded rod; 104. Nut sleeve; 105. End plate; 106. Handle rod; 2. Bottom connecting cylinder; 3. Chassis; 4. Self-locking caster wheel; 5. Lower end cylinder; 6. Inner cavity; 7. Connecting rod; 8. Piston plate b. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Please see Figure 1-6This utility model provides a lifting mechanical electrical device, including a chassis 3, with an inner cavity 6 inside the chassis 3. Multiple lower end cylinders 5, communicating with the inner cavity 6, are fixed to the bottom side of the chassis 3. A connecting rod 7 is inserted inside the lower end cylinder 5, and a piston plate b8, tightly fitted to the inner wall of the lower end cylinder 5, is fixed to the top of the connecting rod 7. A self-locking universal wheel 4 is installed at the bottom of the connecting rod 7. A demodulation assembly 1, communicating with the inner cavity 6, is provided outside the chassis 3. A bottom connecting cylinder 2 is fixed to the bottom end of each of the multiple lower end cylinders 5, and the self-locking universal wheel 4 can retract into the bottom connecting cylinder 2. The inner cavity 6 is filled with a certain amount of liquid, such as water or hydraulic oil. When the device is used on an uneven surface, the self-locking universal wheel 4 contacts the uneven ground, and the multiple self-locking universal wheels 4 are pressurized to varying degrees, causing the contents of the multiple lower end cylinders 5 to... The piston plates b8 move upwards to different degrees, thereby automatically distributing the liquid inside the inner cavity 6 to different lower end cylinders 5. The hydraulic pressure inside multiple lower end cylinders 5 is automatically adjusted to be basically the same, thereby automatically adjusting the connecting rods 7 inside multiple lower end cylinders 5 to extend to the same length, thus automatically leveling the chassis 3, ensuring that the chassis 3 is always in a basically horizontal state, adjusting the levelness of the chassis 3 to a safe range, and ensuring the safety of the elevator. The overall leveling structure is relatively simple, and the automatic leveling results in low usage and maintenance costs. When used on a level ground, the hydraulic pressure inside the inner cavity 6 is removed by the demodulation component 1, so that under the action of its own weight, the self-locking casters 4 can automatically retract into the bottom connecting cylinders 2, so that multiple bottom connecting cylinders 2 contact the horizontal ground, effectively improving the overall stability of the placement.

[0024] Further as Figure 2 , Figure 5 and Figure 6 As shown, it is worth noting that the demodulation assembly 1 includes a liquid cylinder 101 fixed to the outer wall of the chassis 3 and communicating with the inner cavity 6. A nut sleeve 104 is fixed inside the end of the liquid cylinder 101 away from the chassis 3. A threaded rod 103 inserted inside the liquid cylinder 101 is threadedly connected to the nut sleeve 104. A piston plate a102 that fits tightly against the inner wall of the liquid cylinder 101 is fixed to one end of the threaded rod 103. Both the liquid cylinder 101 and the inner cavity 6 are filled with liquid. When used on a horizontal surface, by rotating the threaded rod 103 outward, the threaded rod 103 drives the piston plate a102 to move away from the chassis 3, thereby removing the hydraulic pressure inside the inner cavity 6. Under the action of its own weight, the self-locking caster 4 can automatically retract into the bottom connecting cylinder 2, so that multiple bottom connecting cylinders 2 are in contact with the horizontal ground, effectively improving the overall stability of the placement.

[0025] Further as Figure 6As shown, it is worth noting that an end plate 105 is fixed on one end of the threaded rod 103 located outside the liquid cylinder 101, and a handle rod 106 is fixed on the side of the end plate 105; in actual operation, the threaded rod 103 can be easily rotated by the handle rod 106, which facilitates operation.

[0026] This solution has the following working process: When the device is used on an uneven surface, the self-locking casters 4 contact the uneven ground, and the multiple self-locking casters 4 are pressed to different degrees, causing the piston plates b8 inside the multiple lower end cylinders 5 to move upward to different degrees. This allows the liquid inside the inner cavity 6 to be automatically evenly distributed to the different lower end cylinders 5, and the hydraulic pressure inside the multiple lower end cylinders 5 is automatically adjusted to be basically the same. This automatically adjusts the connecting rods 7 inside the multiple lower end cylinders 5 to extend to the same length, thereby automatically leveling the chassis 3 and keeping the chassis 3 in a basically horizontal state. The levelness of the chassis 3 is adjusted to a safe range. When used on a level surface, by rotating the threaded rod 103 outward, the threaded rod 103 drives the piston plate a102 to move away from the chassis 3, thereby removing the hydraulic pressure inside the inner cavity 6. Under the action of its own weight, the self-locking casters 4 can automatically retract into the bottom connecting cylinders 2, so that the multiple bottom connecting cylinders 2 contact the level ground, effectively improving the overall placement stability.

[0027] Further as Figure 6 As shown, it is worth noting that the surface of the handle 106 is fitted with a rubber sleeve; during actual operation, the rubber sleeve increases the friction when gripping the handle 106, preventing slippage.

[0028] Further as Figure 2 and Figure 3 As shown, it is worth noting that multiple lower end cylinders 5 are symmetrically distributed at the edge of the chassis 3.

[0029] In summary: When the device is used on uneven ground, the self-locking casters 4 contact the uneven ground, and the multiple self-locking casters 4 are pressed to different degrees, causing the piston plates b8 inside the multiple lower end cylinders 5 to move upward to different degrees. This allows the liquid inside the inner cavity 6 to be automatically evenly distributed to the different lower end cylinders 5, and the hydraulic pressure inside the multiple lower end cylinders 5 is automatically adjusted to be basically the same. This automatically adjusts the connecting rods 7 inside the multiple lower end cylinders 5 to extend to the same length, thereby automatically leveling the chassis 3, ensuring that the chassis 3 is always in a basically horizontal state, adjusting the levelness of the chassis 3 to a safe range, and ensuring the safety of the lift. The overall leveling structure is relatively simple, and the automatic leveling results in low usage and maintenance costs. When used on level ground, the hydraulic pressure inside the inner cavity 6 is removed by the demodulation component 1. Under the action of its own weight, the self-locking casters 4 can automatically retract into the bottom connecting cylinders 2, allowing the multiple bottom connecting cylinders 2 to contact the level ground, effectively improving the overall stability of the placement.

Claims

1. An electrical hoisting machine arrangement comprising a base frame (3), characterized in that The chassis (3) has an inner cavity (6) inside. Multiple lower end cylinders (5) communicating with the inner cavity (6) are fixed on the bottom side of the chassis (3). A connecting rod (7) is inserted inside the lower end cylinder (5). A piston plate b (8) that fits tightly against the inner wall of the lower end cylinder (5) is fixed at the top of the connecting rod (7). A self-locking universal wheel (4) is installed at the bottom of the connecting rod (7). A demodulation assembly (1) communicating with the inner cavity (6) is provided on the outside of the chassis (3). A bottom connecting cylinder (2) is fixed on the bottom of each of the multiple lower end cylinders (5). The self-locking universal wheel (4) can be retracted into the bottom connecting cylinder (2).

2. The lifting mechanical electrical device according to claim 1, characterized in that, The demodulation assembly (1) includes a liquid cylinder (101) fixed on the outer wall of the chassis (3) and communicating with the inner cavity (6). A nut sleeve (104) is fixed inside the liquid cylinder (101) at one end away from the chassis (3). A threaded rod (103) inserted inside the liquid cylinder (101) is threadedly connected to the nut sleeve (104). A piston plate a (102) that fits tightly against the inner wall of the liquid cylinder (101) is fixed at one end of the threaded rod (103).

3. The lifting mechanical electrical device according to claim 2, characterized in that, The threaded rod (103) is fixed with an end plate (105) at one end outside the liquid cylinder (101), and a handle rod (106) is fixed on the side of the end plate (105).

4. The lifting mechanical electrical device according to claim 3, characterized in that, The surface of the handle rod (106) is fitted with a rubber sleeve.

5. The lifting mechanical electrical device according to claim 1, characterized in that, Multiple lower end cylinders (5) are symmetrically distributed at the edge of the chassis (3).

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