Lifting device

Abstract

The embodiment of the utility model provides a lifting device. The lifting device comprises a barrel and a lifting part. The barrel comprises an outer barrel and an inner barrel, and a containing space is formed between the inner barrel and the outer barrel; the lifting part comprises a fixing block, an adjusting rod and an adjusting block, the fixing block is located in the containing space, a first through hole and a second through hole are formed in the fixing block, one end of the adjusting rod penetrates through the first through hole to be connected with the fixing block, an external thread is arranged on the adjusting rod, and an internal thread structure matched with the external thread is arranged on the adjusting block; the fixing block is arranged at a barrel opening of the inner barrel, a third through hole is formed in the barrel opening of the inner barrel, the fixing block is fixed to the inner barrel through a bolt penetrating through the second through hole and the third through hole, and the adjusting block abuts against the outer barrel; or the fixing block is arranged at the barrel opening of the outer barrel, a third through hole is formed in the barrel opening of the outer barrel, the fixing block is fixed to the outer barrel through a bolt penetrating through the second through hole and the third through hole, and the adjusting block abuts against the inner barrel. The lifting device is simple in structure, and the production cost can be reduced.

Description

Technical Field

[0001] This application relates to the field of process application technology, and in particular to a lifting device. Background Technology

[0002] Lifting structures are widely used in construction, industrial production, and machinery manufacturing due to their functional applications. Currently, lifting cylinders typically utilize linear guide rail structures (such as...) Figure 1 The lifting motion is achieved using a ball screw structure (as shown in the image), but the production cost is high when manufacturing small equipment. Summary of the Invention

[0003] This application provides a lifting device that can solve the problem of high production costs.

[0004] This application provides a lifting device, including a cylinder and a lifting component;

[0005] The cylinder includes an outer cylinder and an inner cylinder, and there is an accommodating space between the inner cylinder and the outer cylinder;

[0006] The lifting component includes a fixed block, an adjusting rod, and an adjusting block. The fixed block is located within the accommodating space. The fixed block is provided with a first through hole and a second through hole. One end of the adjusting rod passes through the first through hole and is connected to the fixed block. The adjusting rod is provided with an external thread, and the adjusting block is provided with an internal thread structure that matches the external thread.

[0007] The fixing block is disposed at the opening of the inner cylinder, and a third through hole is provided at the opening of the inner cylinder. The fixing block is fixed to the inner cylinder by bolts passing through the second through hole and the third through hole. The adjusting block abuts against the outer cylinder.

[0008] or

[0009] The fixing block is disposed at the opening of the outer cylinder, and a third through hole is provided at the opening of the outer cylinder. The fixing block is fixed to the outer cylinder by bolts passing through the second through hole and the third through hole, and the adjusting block abuts against the inner cylinder.

[0010] Optionally, the fixing block includes two opposing support rods, which extend from the edge of the fixing block toward the diameter of the inner cylinder and are in contact with the inner wall of the inner cylinder.

[0011] or

[0012] The two support rods extend from the edge of the fixing block toward the diameter of the outer cylinder, and the two support rods are in contact with the outer wall of the outer cylinder.

[0013] Optionally, the fixing block includes a hollow area, and the adjusting block is disposed within the hollow area.

[0014] Optionally, the adjusting block includes a first adjusting block, a second adjusting block, and a third adjusting block, wherein the first adjusting block and the second adjusting block are disposed opposite to each other, and the adjusting rod is located between the first adjusting block and the second adjusting block;

[0015] The first adjusting block is provided with a first limiting groove, the second adjusting block is provided with a second limiting groove, the openings of the first limiting groove and the second limiting groove are arranged opposite to each other, the third adjusting block is disposed in the first limiting groove and the second limiting groove, and the third adjusting block is provided with an internal thread structure adapted to the adjusting rod.

[0016] Optionally, the third adjusting block is a nut structure.

[0017] Optionally, the fixing block, the first adjusting block, and the second adjusting block are all injection molded parts.

[0018] Optionally, the cylinder is a square cylinder, and the lifting component is provided at each of the four corners of the square cylinder.

[0019] Optionally, the fixing block is a wedge-shaped fixing block.

[0020] In this embodiment, the lifting device includes a cylinder and a lifting component; the cylinder includes an outer cylinder and an inner cylinder, with an accommodating space between the inner cylinder and the outer cylinder; the lifting component includes a fixing block, an adjusting rod, and an adjusting block; the fixing block is located within the accommodating space, and the fixing block has a first through hole and a second through hole; one end of the adjusting rod passes through the first through hole and connects to the fixing block; the adjusting rod has an external thread, and the adjusting block has an internal thread structure adapted to the external thread; the fixing block is located at the opening of the inner cylinder, and the opening of the inner cylinder has a third through hole; the fixing block is fixed to the inner cylinder by bolts passing through the second through hole and the third through hole, and the adjusting block abuts against the outer cylinder; or the fixing block is located at the opening of the outer cylinder, and the opening of the outer cylinder has a third through hole; the fixing block is fixed to the outer cylinder by bolts passing through the second through hole and the third through hole, and the adjusting block abuts against the inner cylinder. In this way, by rotating the adjusting rod, the adjusting block can move back and forth along the length extension direction of the adjusting rod, so that the inner cylinder that abuts against the adjusting block can move up and down relative to the outer cylinder, or the outer cylinder that abuts against the adjusting block can move up and down relative to the inner cylinder. This lifting device has a simple structure and can reduce production costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a lifting cylinder in related technologies;

[0022] Figure 2 A top view of the lifting device provided in the embodiments of this application;

[0023] Figure 3 This is a schematic diagram of the lifting component of the lifting device provided in the embodiments of this application;

[0024] Figure 4 This is a schematic diagram illustrating the stress state of the cylinder in related technologies;

[0025] Figure 5 This is a schematic diagram showing the stress state of the cylinder in an embodiment of this application. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "connected" or "linked," and similar terms, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0028] The lifting device proposed in the application embodiment will be further described below with reference to the accompanying drawings.

[0029] Please see Figure 2 and Figure 2 , Figure 2 This is a top view of the lifting device provided in the embodiments of this application. Figure 3 This is a schematic diagram of the lifting component of the lifting device provided in an embodiment of this application. As shown in the figure, the lifting device includes a cylinder 10 and a lifting component 20;

[0030] The cylindrical body 10 includes an outer cylinder 11 and an inner cylinder 12, and there is an accommodating space between the inner cylinder 12 and the outer cylinder 11;

[0031] The lifting component 20 includes a fixed block 21, an adjusting rod 22, and an adjusting block 23. The fixed block 21 is located within the accommodating space. The fixed block 21 is provided with a first through hole and a second through hole 211. One end of the adjusting rod 22 passes through the first through hole and is connected to the fixed block 21. The adjusting rod 22 is provided with an external thread, and the adjusting block 23 is provided with an internal thread structure that is compatible with the external thread.

[0032] The fixing block 21 is disposed at the opening of the inner cylinder 12, and the opening of the inner cylinder 12 is provided with a third through hole. The fixing block 21 is fixed to the inner cylinder 12 by bolts passing through the second through hole 211 and the third through hole. The adjusting block 23 abuts against the outer cylinder 11.

[0033] or

[0034] The fixing block 21 is disposed at the opening of the outer cylinder 11, and the opening of the outer cylinder 11 is provided with a third through hole. The fixing block 21 is fixed to the outer cylinder 11 by bolts passing through the second through hole 211 and the third through hole. The adjusting block 23 abuts against the inner cylinder 12.

[0035] In this embodiment, the outer cylinder 11 is sleeved outside the inner cylinder 12, and there is an accommodating space between the two cylinders 10. The lifting member 20 is placed in the accommodating space, and the lifting member 20 can be set on the inner cylinder 12 or the outer cylinder 11 by means of the fixing block 21.

[0036] It should be understood that the fixed block 21 is provided with a first through hole 211, which is located at the center of the fixed block 21. The first end of the adjusting rod 22 passes through the first through hole 211 and is connected to the fixed block 21. The other end of the adjusting rod 22 is threadedly connected to the adjusting block 23, which abuts against the outer cylinder 11. Thus, when the adjusting rod 22 is rotated, the adjusting block 23 can be driven to reciprocate along the length extension direction of the adjusting rod 22, thereby causing the outer cylinder 11 to move up and down relative to the inner cylinder 12. Similarly, when the adjusting block 23 abuts against the inner cylinder 12, rotating the adjusting rod 22 can drive the adjusting block 23 to reciprocate along the length extension direction of the adjusting rod 22, thereby causing the inner cylinder 12 to move up and down relative to the outer cylinder 11.

[0037] In an optional embodiment, the adjusting rod 22 is a screw, and the adjusting block 23 includes an internal thread structure adapted to the screw. By rotating the screw, the adjusting block 23 can reciprocate along the length extension direction of the screw.

[0038] The fixing block 21 is also provided with a second through hole 211. Correspondingly, a third through hole is provided at the opening of the inner cylinder 12, or a third through hole is provided at the opening of the outer cylinder 11. The fixing block 21 is fixed to the inner cylinder 12 or the outer cylinder 11 by bolts passing through the second through hole 211 and the third through hole. When the fixing block 21 is set in the inner cylinder 12, the adjusting block 23 abuts against the outer cylinder 11. At this time, the adjusting block 23 moves back and forth along the length extension direction of the adjusting rod 22 to drive the outer cylinder 11 to move up and down relative to the inner cylinder 12. When the fixing block 21 is set in the outer cylinder 11, the adjusting block 23 abuts against the inner cylinder 12. At this time, the adjusting block 23 moves back and forth along the length extension direction of the adjusting rod 22 to drive the inner cylinder 12 to move up and down relative to the outer cylinder 11.

[0039] In an optional embodiment, the inner cylinder 12 and the outer cylinder 11 have the same cylinder structure, with the inner cylinder 12 having a smaller diameter than the outer cylinder 11, and their center lines coinciding. A lifting member 20 is provided within the gap between the inner cylinder 12 and the outer cylinder 11, providing driving force for the lifting movement of the inner cylinder 12 relative to the outer cylinder 11, or for the lifting movement of the outer cylinder 11 relative to the inner cylinder 12. Thus, with the inner cylinder 12 and the outer cylinder 11 having identical structures, the compressive force on either the inner or outer cylinder 11 is more uniform, improving the stability of the lifting device during lifting movements.

[0040] Thus, in this embodiment of the application, by rotating the adjusting rod 22, the adjusting block 23 can move back and forth along the length extension direction of the adjusting rod 22, so that the inner cylinder 12 that abuts against the adjusting block 23 can move up and down relative to the outer cylinder 11, or the outer cylinder 11 that abuts against the adjusting block 23 can move up and down relative to the inner cylinder 12. This lifting device has a simple structure and can reduce production costs.

[0041] In an optional embodiment, the cylindrical body 10 is a square cylindrical body 10, and the lifting member 20 is provided at each of the four corners of the square cylindrical body 10.

[0042] It should be understood that in this embodiment, both the inner cylinder 12 and the outer cylinder 11 are square cylinders 10, and a lifting member 20 is provided in the gap between the two square cylinders 10. Thus, by evenly distributing the lifting members 20 at the four corners of the square cylinder 10, the lifting members 20 can drive the inner cylinder 12 or the outer cylinder 11 to perform lifting movements, thereby improving the stability of the lifting movements of the cylinder 10. Figure 4 As shown, by setting lifting components at the four corners, the four corners of the cylinder are subjected to a more uniform compressive force. Compared to related technologies, where lifting components are set at the four sides of the cylinder (i.e., the four sides of the cylinder are subjected to compressive force, such as...), this method... Figure 5 As shown in the figure, the cylinder has a stronger resistance to deformation.

[0043] In a specific implementation, lifting components 20 are provided at the four corners of the cylinder gap. A third through hole is provided at the opening of the inner cylinder 12, or at the opening of the outer cylinder 11. The fixing block 21 is fixed to the square inner cylinder 12 or the square outer cylinder 11 by bolts passing through the second through hole 211 and the third through hole. When the fixing block 21 is provided on the square inner cylinder 12, the adjusting block 23 abuts against the square outer cylinder 11. At this time, the adjusting block 23 moves back and forth along the length extension direction of the adjusting rod 22 to drive the square outer cylinder 11 to move up and down relative to the square inner cylinder 12. When the fixing block 21 is provided on the square outer cylinder 11, the adjusting block 23 abuts against the inner cylinder 12. At this time, the adjusting block 23 moves back and forth along the length extension direction of the adjusting rod 22 to drive the square inner cylinder 12 to move up and down relative to the square outer cylinder 11.

[0044] In an optional embodiment, the fixing block 21 can be an L-shaped fixing block 21, which is positioned within the cylinder gap between the two square cylinders 10 to accommodate the cylinder gap. Correspondingly, the adjusting block 23 can also be an L-shaped adjusting block 23. In this way, when the L-shaped fixing block 21 is positioned on the inner cylinder 12, the two sides of the L-shaped adjusting block 23 abut against the two adjacent sides of the outer cylinder 11; when the L-shaped fixing block 21 is positioned on the outer cylinder 11, the two sides of the L-shaped adjusting block 23 abut against the two adjacent sides of the inner cylinder 12. When the adjusting block 23 moves back and forth along the length extension direction of the adjusting rod 22, the stability of the outer cylinder 11 or the inner cylinder 12 during lifting and lowering can be improved.

[0045] Optionally, the fixing block 21 may also be a wedge-shaped fixing block 21.

[0046] It should be understood that when the four corners of the inner cylinder 12 and the outer cylinder 11 have obtuse angle structures, the fixing block 21 is a wedge-shaped fixing block 21 adapted to the obtuse angle structure. In this way, the inner cylinder 12 or the outer cylinder 11 can be subjected to a more uniform compressive force from the adjusting block 23, thereby improving the stability of the lifting device during lifting movement.

[0047] Optionally, the lifting component 20 can be an annular structure surrounding the outer wall of the inner cylinder 12, or an annular structure surrounding the inner wall of the outer cylinder 11. In this way, by setting the lifting component 20 as an annular structure surrounding the inner cylinder 12 or the outer cylinder 11, the squeezing force of the adjusting block 23 on the outer cylinder 11 or the inner cylinder 12 is more uniform, and the stability can be improved when the outer cylinder 11 or the inner cylinder 12 moves up and down.

[0048] It should be understood that when the lifting component 20 is an annular structure surrounding the outer wall of the inner cylinder 12, the fixing block 21 of the lifting component 20 is located at the opening of the inner cylinder 12, and the adjusting block 23 of the lifting component 20 abuts against the outer cylinder 11. When the adjusting rod 22 is rotated, the adjusting block 23, which has an internal thread structure that is compatible with the external thread of the adjusting rod 22, is driven to move back and forth along the length extension direction of the adjusting rod 22, thereby driving the outer cylinder 11 to move up and down along its length extension direction.

[0049] When the lifting component 20 is an annular structure surrounding the inner wall of the outer cylinder 11, the fixing block 21 of the lifting component 20 is located at the opening of the outer cylinder 11, and the adjusting block 23 of the lifting component 20 abuts against the inner cylinder 12. When the adjusting rod 22 is rotated, the adjusting block 23, which has an internal thread structure that matches the external thread of the adjusting rod 22, moves back and forth along the length extension direction of the adjusting rod 22, thereby causing the inner cylinder 12 to move up and down along its length extension direction.

[0050] Optionally, the fixing block 21 includes two opposing support rods, which extend from the edge of the fixing block 21 toward the diameter of the inner cylinder 12, and the two support rods are in contact with the inner wall of the inner cylinder 12.

[0051] or

[0052] The two support rods extend from the edge of the fixing block 21 toward the diameter of the outer cylinder 11, and the two support rods are in contact with the outer wall of the outer cylinder 11.

[0053] It should be understood that the fixing block 21 can be hung on the inner cylinder 12 or the outer cylinder 11 by two support rods. This improves the stability of the fixing block 21 on the inner cylinder 12 or the outer cylinder 11.

[0054] Optionally, the fixing block 21 includes a hollow area, and the adjusting block 23 is disposed within the hollow area.

[0055] It should be understood that the hollow area can be located in the center of the fixed block 21, and thus the adjusting block 23 located in the hollow area is also located in the center of the fixed block 21. In this way, the stability of the adjusting block 23 can be improved when the adjusting block 23 moves back and forth along the length extension direction of the adjusting rod 22.

[0056] In addition, by setting the adjustment block 23 to be located in the hollow area of ​​the fixed block 21, the accommodating space occupied by the entire lifting component 20 can be reduced.

[0057] Optionally, the adjusting block 23 includes a first adjusting block 231, a second adjusting block 232 and a third adjusting block 233, the first adjusting block 231 and the second adjusting block 232 are arranged opposite to each other, and the adjusting rod 22 is located between the first adjusting block 231 and the second adjusting block 232;

[0058] The first adjusting block 231 is provided with a first limiting groove, the second adjusting block 232 is provided with a second limiting groove, the openings of the first limiting groove and the second limiting groove are arranged opposite to each other, the third adjusting block 233 is disposed in the first limiting groove and the second limiting groove, and the third adjusting block 233 is provided with an internal thread structure adapted to the adjusting rod 22.

[0059] It should be understood that the first adjusting block 231 and the second adjusting block 232 are of the same structure, size, and mass, and the adjusting rod 22 is located between the first adjusting block 231 and the second adjusting block 232. This ensures that when the first adjusting block 231 and the second adjusting block 232 abut against the inner cylinder 12 or the outer cylinder 11, the compressive force on the outer cylinder 11 or the inner cylinder 12 is the same, thereby improving the smoothness of lifting. It also ensures that the driving force on the first adjusting block 231 and the second adjusting block 232 due to the rotation of the adjusting rod 22 is more uniform, which further improves the smoothness of lifting.

[0060] In addition, the first limiting groove on the first adjusting block 231 and the second limiting groove on the second adjusting block 232 have the same depth and width, and the third adjusting block 233 has the same depth as the first adjusting block 231 and the second adjusting block 232. The third adjusting block 233 is locked in the two limiting grooves, and the third adjusting block 233 also has an internal thread structure. In this way, when the adjusting rod 22 rotates, the third adjusting block 233 can move back and forth along the length extension direction of the adjusting rod 22, thereby driving the first adjusting block 231 and the second adjusting block 232 to move up and down.

[0061] Optionally, the third adjusting block 233 is a nut structure.

[0062] In this embodiment, the third adjusting block 233 is set as a nut structure. The nut structure has an internal thread structure that is compatible with the external thread of the adjusting rod 22. In this way, through the thread engagement, the nut structure can reciprocate along the adjusting rod 22 when the adjusting rod 22 rotates.

[0063] It should be understood that the direction of movement of the nut structure is different when the adjusting rod 22 is in different rotation directions.

[0064] In one optional embodiment, when the adjusting rod 22 is rotated clockwise, the nut structure moves towards the cylinder opening along the length extension direction of the adjusting rod 22, at which time the lifting device is in the raised state; while when the adjusting rod 22 is rotated counterclockwise, the nut structure moves away from the cylinder opening along the length extension direction of the adjusting rod 22, at which time the lifting device is in the lowered state.

[0065] Optionally, the fixing block 21, the first adjusting block 231 and the second adjusting block 232 are all injection molded parts.

[0066] In this embodiment, by setting the fixed block 21, the first adjusting block 231 and the second adjusting block 232 to be injection molded parts, the weight of the lifting device can be reduced, making it more portable.

[0067] In an alternative implementation, the lifting device can be replaced with different structures and materials for different usage scenarios to improve its flexibility and practicality.

[0068] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A lifting device, characterized in that Includes the cylinder and lifting components; The cylinder includes an outer cylinder and an inner cylinder, and there is an accommodating space between the inner cylinder and the outer cylinder; The lifting component includes a fixed block, an adjusting rod, and an adjusting block. The fixed block is located within the accommodating space. The fixed block is provided with a first through hole and a second through hole. One end of the adjusting rod passes through the first through hole and is connected to the fixed block. The adjusting rod is provided with an external thread, and the adjusting block is provided with an internal thread structure that matches the external thread. The fixing block is disposed at the opening of the inner cylinder, and a third through hole is provided at the opening of the inner cylinder. The fixing block is fixed to the inner cylinder by bolts passing through the second through hole and the third through hole. The adjusting block abuts against the outer cylinder. or The fixing block is disposed at the opening of the outer cylinder, and a third through hole is provided at the opening of the outer cylinder. The fixing block is fixed to the outer cylinder by bolts passing through the second through hole and the third through hole, and the adjusting block abuts against the inner cylinder.

2. The lift device of claim 1, wherein, The fixing block includes two opposing support rods, which extend from the edge of the fixing block toward the diameter of the inner cylinder and are in contact with the inner wall of the inner cylinder. or The two support rods extend from the edge of the fixing block toward the diameter of the outer cylinder, and the two support rods are in contact with the outer wall of the outer cylinder.

3. The lift device of claim 1, wherein, The fixing block includes a hollow area, and the adjusting block is disposed within the hollow area.

4. The lift device of claim 3, wherein, The adjusting block includes a first adjusting block, a second adjusting block, and a third adjusting block. The first adjusting block and the second adjusting block are arranged opposite to each other, and the adjusting rod is located between the first adjusting block and the second adjusting block. The first adjusting block is provided with a first limiting groove, the second adjusting block is provided with a second limiting groove, the openings of the first limiting groove and the second limiting groove are arranged opposite to each other, the third adjusting block is disposed in the first limiting groove and the second limiting groove, and the third adjusting block is provided with an internal thread structure adapted to the adjusting rod.

5. The lift device of claim 4, wherein, The third adjusting block is a nut structure.

6. The lift device of claim 5, wherein, The fixing block, the first adjusting block, and the second adjusting block are all injection molded parts.

7. The lift device of claim 1, wherein, The cylinder is a square cylinder, and the lifting components are provided at each of the four corners of the square cylinder.

8. The lift device of claim 7, wherein, The fixing block is a wedge-shaped fixing block.

Images