Floor lifting device

Abstract

The utility model discloses a floor lifting device which comprises a frame body, a transverse shaft is arranged on the frame body, a first chain wheel and a second chain wheel are rotationally connected to the transverse shaft, the diameter of the second chain wheel is smaller than that of the first chain wheel, and the floor lifting device further comprises a third chain wheel. The third chain wheel, the first chain wheel and the second chain wheel are connected through a chain to form a differential pulley block, and a vacuum chuck is connected below the third chain wheel. Compared with the prior art, the vacuum chuck can be adsorbed on the floor, the differential pulley block can lift the floor through the vacuum chuck, and the differential pulley has the characteristic of saving labor when lifting the floor, so that the working intensity of personnel can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of indoor maintenance technology, and in particular to a floor lifting device. Background Technology

[0002] A cleanroom is a sealed space that achieves a specific level of cleanliness by strictly controlling environmental parameters such as the concentration of particulate matter, temperature, humidity, and air pressure in the air. It is widely used in fields such as electronics, semiconductors, biomedicine, aerospace, and precision manufacturing to ensure that production or experiments are free from interference by minute contaminants.

[0003] Raised floors are one of the core structures commonly used in cleanroom construction. They are created by building an elevated platform, approximately 20-150cm high, above the ground level, forming a closed system independent of the ground. This allows infrastructure such as electrical wiring, air conditioning ducts, and water supply and drainage pipes to be integrated into the floor layer, preventing exposed wiring and maintaining the cleanroom's tidiness. Furthermore, the raised floor works in conjunction with the ceiling air supply system to form a stable airflow layer, reducing eddies and dead zones.

[0004] Currently, when opening raised floors in cleanrooms, a significant amount of force is required to open them due to factors such as mutual compression between the floorboards or disassembly and assembly of equipment. Solid floors are typically opened using suction cups for manual lifting, requiring personnel to possess sufficient strength to lift and open the floor, resulting in high workload. Utility Model Content

[0005] The main purpose of this utility model is to provide a floor lifting device. The vacuum suction cup can be attached to the floor, and the differential pulley group can lift the floor through the vacuum suction cup. Furthermore, the differential pulley has the characteristic of saving effort when lifting the floor, thereby reducing the workload of personnel.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A floor lifting device includes a frame with a horizontal shaft. A first sprocket and a second sprocket are rotatably connected to the horizontal shaft. The diameter of the second sprocket is smaller than that of the first sprocket. The device also includes a third sprocket. The third sprocket, the first sprocket, and the second sprocket are connected by a chain to form a differential pulley system. A vacuum suction cup is connected below the third sprocket.

[0008] Furthermore, a connecting shaft is connected to the third sprocket, and vacuum suction cups are connected to both sides of the connecting shaft via connecting ropes.

[0009] Furthermore, the vacuum suction cup is a manual vacuum suction cup.

[0010] Furthermore, a flexible protective sleeve is fitted around the pulling part of the chain.

[0011] Furthermore, it also includes a base, which is fixedly connected to the frame.

[0012] Furthermore, a counterweight is provided on the top of the base.

[0013] Furthermore, a groove is provided on the top of the base, and the counterweight is placed on the top of the base through the groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The vacuum suction cup of this invention can be attached to the floor, while the differential pulley system can lift the floor using the vacuum suction cup. Furthermore, the differential pulley system has the characteristic of saving effort when lifting the floor, thereby reducing the workload of personnel.

[0016] The vacuum suction cup of this invention is a manual vacuum suction cup, which allows the device to operate solely through mechanical structure and can function in environments without electricity.

[0017] The flexible protective sleeve of this invention can adhere tightly to the chain after being subjected to force, thereby allowing personnel to pull the chain through the flexible protective sleeve and avoiding direct contact between personnel's hands and the chain.

[0018] The counterweight of this invention can increase the weight of the base, thereby making the base have good stability after it is placed. Therefore, the frame can remain stable when the differential pulley block lifts the floor. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a floor lifting device according to the present invention.

[0020] Figure 2 This is a schematic diagram of the differential pulley block of a floor lifting device according to the present invention.

[0021] Figure 3 This is a schematic diagram showing the connection between the third sprocket and the vacuum suction cup of a floor lifting device according to this utility model.

[0022] Figure 4 This is a schematic diagram of the flexible protective sleeve structure of a floor lifting device according to this utility model.

[0023] Figure 5 This is a schematic diagram of the chain drive of the differential pulley block of a floor lifting device according to this utility model.

[0024] In the diagram: 1. Frame; 101. Horizontal shaft; 2. Differential pulley block; 201. First sprocket; 202. Second sprocket; 203. Chain; 2031. Pulling part; 204. Third sprocket; 3. Vacuum suction cup; 4. Connecting rope; 5. Base; 6. Counterweight; 7. Groove; 8. Flexible protective sleeve; 9. Connecting shaft. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-5 As shown, a floor lifting device includes a frame 1 with a horizontal shaft 101. A first sprocket 201 and a second sprocket 202 are rotatably connected to the horizontal shaft 101. The diameter of the second sprocket 202 is smaller than that of the first sprocket 201. The device also includes a third sprocket 204. The third sprocket 204, the first sprocket 201, and the second sprocket 202 are connected by a chain 203 to form a differential pulley group 2. A vacuum suction cup 3 is connected below the third sprocket 204. The force-saving principle of the differential pulley group 2 will not be elaborated here.

[0027] In this embodiment, such as Figure 1 and Figure 2 As shown, a connecting shaft 9 is connected to the third sprocket 204. Vacuum suction cups 3 are connected to both sides of the connecting shaft 9 via connecting ropes 4. When lifting the floor, the bottom of the vacuum suction cup 3 should first contact the floor so that it can adhere to the floor. At this time, personnel can manually pull the pulling part 2031 of the chain 203. Figure 5 As shown, the third sprocket 204 will rise during this process, thereby applying an upward force to the floor through the vacuum suction cup 3, which will cause the floor to detach from the load-bearing mechanism. Furthermore, the first sprocket 201 and the second sprocket 202 are connected by a chain 203 to form a differential pulley group 2. The differential pulley group 2 can reduce the force required for personnel to lift the floor and reduce the workload.

[0028] Among them, the vacuum suction cup 3 is a manual vacuum suction cup, which allows the device to work solely through mechanical structure and operate in environments without electricity.

[0029] Among them, the pulling part 2031 of the chain 203 is surrounded by a flexible protective sleeve 8, such as Figure 2 As shown, the flexible protective sleeve 8 is made of rubber. When personnel apply force to the pulling part 2031, they can hold the flexible protective sleeve 8 to deform it and pull it tightly against the chain 203, thus avoiding direct contact between the personnel's hands and the chain 203.

[0030] The device also includes a base 5 and a counterweight 6. The base 5 is fixedly connected to the frame 1. The top of the base 5 has a groove 7. The counterweight 6 is placed on the top of the base 5 through the groove 7. The counterweight 6 can increase the weight of the base 5, so that the base 5 has good stability after being placed. Therefore, when the differential pulley block 2 lifts the floor, the frame 1 can remain stable.

[0031] The working principle is as follows: First, the operator attaches the vacuum suction cup 3 to the floor. Then, the operator manually pulls the pulling part 2031 of the chain 203. At this time, the third sprocket 204 will rise during the process, thereby applying an upward force to the floor through the vacuum suction cup 3. Since the differential pulley group 2 has the characteristic of saving effort, the operator can use less force to detach the floor from the load-bearing mechanism, thereby reducing the operator's workload.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A floor lifting device, comprising a frame (1) having a horizontal shaft (101) on the frame (1), characterized in that: The horizontal shaft (101) is rotatably connected to a first sprocket (201) and a second sprocket (202), the diameter of the second sprocket (202) being smaller than the diameter of the first sprocket (201). It also includes a third sprocket (204). The third sprocket (204), the first sprocket (201), and the second sprocket (202) are connected by a chain (203) to form a differential pulley group (2). A vacuum suction cup (3) is connected below the third sprocket (204).

2. The floor lifting device according to claim 1, characterized in that: A connecting shaft (9) is rotatably connected to the third sprocket (204), and the two sides of the connecting shaft (9) are connected to the vacuum suction cup (3) by connecting ropes (4).

3. The floor lifting device according to claim 1, characterized in that: The vacuum suction cup (3) is a manual vacuum suction cup.

4. A floor lifting device according to claim 1, characterized in that: The chain (203) has a flexible protective sleeve (8) around its pulling part (2031).

5. A floor lifting device according to any one of claims 1-4, characterized in that: It also includes a base (5), which is fixedly connected to the frame (1).

6. A floor lifting device according to claim 5, characterized in that: A counterweight (6) is provided on the top of the base (5).

7. A floor lifting device according to claim 6, characterized in that: The base (5) has a groove (7) on its top, and the counterweight (6) is placed on the top of the base (5) through the groove (7).

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