Lifting table screw rod with adjustable stroke

Abstract

The utility model discloses a lifting table lead screw with adjustable stroke, which relates to the technical field of lifting table lead screws and comprises a lifting bin, a rotary driving component is fixedly mounted at one end in the lifting bin, the output end of the rotary driving component is in transmission connection with a lead screw main body, and the outer side of the lead screw main body is in threaded connection with a driving block. A mounting side plate is fixedly connected to one side of the driving block, sliding blocks are symmetrically and fixedly connected to the other side of the driving block, and sliding rails are slidably connected to the other sides of the sliding blocks. The lead screw lubricator is driven by the driving block to move, lubricating oil in the oil outlet circular ring drips onto the coating brush in the coating ring through the oil outlet head, so that the lubricating oil is uniformly coated on the outer side of the lead screw main body by the coating brush, a stable oil film is formed between the lead screw main body and the driving block, and the lubricating effect of the lead screw main body is improved. And a continuous and stable lubricating effect is obtained.

Description

Technical Field

[0001] This utility model relates to the field of lifting table lead screw technology, and in particular to an adjustable travel lifting table lead screw. Background Technology

[0002] An adjustable-travel height-adjustable desk lead screw is a core mechanical component used to adjust the desktop height. It is typically made of high-strength metal (such as steel or aluminum alloy) and features a precision threaded structure. Through a rotary drive, it converts the rotational motion of a motor into linear motion, or it can be used in conjunction with a hand crank to achieve the height adjustment function. Its core function is to provide stable support, even weight distribution, and precise positioning for the height-adjustable desk, ensuring that users can smoothly adjust the desktop to the ideal height within a preset range. It also possesses wear-resistant, corrosion-resistant, and self-locking anti-slip properties, and is widely used in electric or hand-cranked height-adjustable desks to meet the ergonomic needs of office and home environments.

[0003] For example, Chinese Patent Publication No. CN218185751U discloses a lifting table lead screw assembly and lifting column. The lead screw assembly includes a bearing housing, a transmission housing, a bearing, a lead screw, and a torsion spring. The bearing housing has a bearing hole for installing the bearing and a receiving groove for accommodating the transmission housing. The torsion spring is located in the receiving groove and hugs the transmission housing, with one of its arms inserted into the bearing housing. The bearing seals the area below the receiving groove and separates the torsion spring from the lead screw. The lifting column includes a motor box, a telescopic tube, and the lead screw assembly. The motor box includes a base plate with a mounting hole, and the bearing housing is disposed in the mounting hole. The telescopic tube is installed below the base plate, and the lead screw is disposed in the telescopic tube. A transmission component is disposed in the telescopic tube and threadedly connected to the lead screw. A motor is disposed in the motor box and is connected to the transmission housing. The motor drives the transmission component and drives the lead screw to rotate, causing the telescopic tube to extend and retract. The torsion spring is used to prevent the telescopic tube from shortening when the motor is not working.

[0004] As the adjustable travel lifting table lead screw is used for longer periods, the lubricating oil on the lead screw surface will oxidize and evaporate, causing its viscosity to change and its fluidity to deteriorate. It will be difficult to distribute evenly on the lead screw surface and form an effective oil film between the lead screw and the drive block, resulting in poor lubrication. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art where the lubricating oil on the surface of the lead screw oxidizes and evaporates, causing changes in viscosity and reduced fluidity, making it difficult to distribute evenly on the lead screw surface and form an effective oil film between the lead screw and the drive block, resulting in poor lubrication. Therefore, this invention proposes an adjustable stroke lifting table lead screw.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable travel lifting table lead screw, comprising a lifting chamber, a rotary drive assembly fixedly installed at one end inside the lifting chamber, a lead screw body being drivenly connected to the output end of the rotary drive assembly, a drive block being threadedly connected to the outer side of the lead screw body, a mounting side plate being fixedly connected to one side of the drive block, a slider being symmetrically fixedly connected to the other side of the drive block, a slide rail being slidably connected to the other side of the slider, the slide rail being fixedly installed inside the lifting chamber, and a lead screw lubricator being provided on the outer side of one end of the lead screw body, the lead screw lubricator comprising an oil outlet assembly and a lead screw surface coating assembly, the oil outlet assembly being fixedly installed on one side of the lead screw surface coating assembly.

[0007] Preferably, the oil outlet assembly includes an oil outlet ring, an oil inlet pipe, and a plurality of oil outlet heads, wherein the input ends of the plurality of oil outlet heads are fixedly connected to the inner side of the oil outlet ring, and the input end of the oil inlet pipe is fixedly connected to the outer side of the oil outlet ring.

[0008] Preferably, the input end of the oil inlet pipe is movably connected with a sealing plug.

[0009] Preferably, the lead screw surface coating assembly includes a mounting plate and a coating ring, the coating ring being fixedly installed inside the mounting plate, and a plurality of coating brushes being fixedly bonded inside the coating ring.

[0010] Preferably, a mounting bracket is fixedly connected to one side of the mounting plate, and the other end of the mounting bracket is fixedly connected to one side of the drive block.

[0011] Preferably, an oil replenishment port is provided on one side of the lifting chamber, and a sealing baffle is movably engaged inside the oil replenishment port.

[0012] Preferably, a lubricating oil collection tray is fixedly installed at the bottom of the lifting chamber.

[0013] Preferably, the rotary drive assembly includes a drive motor, a drive pulley, a transmission belt, and a transmission pulley. The output end of the drive motor is connected to the center of the drive pulley. One end of the transmission belt is connected to the outside of the drive pulley, and the other end of the transmission belt is connected to the outside of the transmission pulley. The center of the transmission pulley is fixedly connected to one end of the lead screw body.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. In this utility model, the lubricant is driven by the drive block to move. The lubricating oil inside the oil outlet ring drips onto the coating brush inside the coating ring through the oil outlet head, so that the coating brush evenly coats the lubricating oil on the outside of the lead screw body. A stable oil film is formed between the lead screw body and the drive block, resulting in a continuous and stable lubrication effect.

[0016] 2. In this utility model, by adjusting the position of the drive block, the screw lubricator on one side of the drive block moves to the side of the oil replenishment port. The sealing baffle is removed from the oil replenishment port, and then the sealing plug is removed. The oil replenishment pipe extends into the input end of the oil inlet pipe through the oil replenishment port to replenish the oil outlet ring, so that the oil outlet ring can continuously output lubricating oil. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of an adjustable travel lifting table lead screw is provided for this utility model;

[0018] Figure 2 This utility model provides a schematic diagram of the internal structure of an adjustable travel lifting table lead screw;

[0019] Figure 3 This utility model provides a three-dimensional structural diagram of a lubricator for a lead screw in an adjustable stroke lifting table.

[0020] Figure 4 This utility model presents a three-dimensional structural diagram of the oil outlet component in the lead screw of an adjustable stroke lifting table.

[0021] Legend: 1. Lifting chamber; 11. Oil inlet; 12. Sealing baffle; 2. Rotary drive assembly; 21. Drive motor; 22. Drive pulley; 23. Transmission belt; 24. Transmission pulley; 3. Lead screw body; 4. Drive block; 41. Slider; 42. Slide rail; 5. Mounting side plate; 6. Lead screw lubricator; 61. Oil outlet assembly; 611. Oil outlet ring; 612. Oil inlet pipe; 613. Oil outlet head; 614. Sealing plug; 62. Lead screw surface coating assembly; 621. Mounting plate; 622. Coating ring; 623. Coating brush; 624. Mounting bracket; 7. Lubricating oil collection tray. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: As Figure 1 - Figure 4As shown, this utility model provides an adjustable stroke lifting table lead screw, including a lifting chamber 1. A rotary drive assembly 2 is fixedly installed at one end inside the lifting chamber 1. The output end of the rotary drive assembly 2 is connected to the lead screw body 3. A drive block 4 is threadedly connected to the outer side of the lead screw body 3. A mounting side plate 5 is fixedly connected to one side of the drive block 4. A slider 41 is symmetrically fixedly connected to the other side of the drive block 4. A slide rail 42 is slidably connected to the other side of the slider 41. The slide rail 42 is fixedly installed inside the lifting chamber 1. A lead screw lubricator 6 is provided on the outer side of one end of the lead screw body 3. The lead screw lubricator 6 includes an oil outlet assembly 61 and a lead screw surface coating assembly 62. The oil outlet assembly 61 is fixedly installed on one side of the lead screw surface coating assembly 62. The oil outlet assembly 61 includes an oil outlet ring 611, an oil inlet pipe 612, and several oil outlet heads 613. The input ends of the several oil outlet heads 613 are fixedly connected to... The inner side of the oil outlet ring 611 and the input end of the oil inlet pipe 612 are fixedly connected to the outer side of the oil outlet ring 611. The lead screw surface coating assembly 62 includes a mounting plate 621 and a coating ring 622. The coating ring 622 is fixedly installed inside the mounting plate 621. Several coating brushes 623 are fixedly bonded inside the coating ring 622. A mounting bracket 624 is fixedly connected to one side of the mounting plate 621. The other end of the mounting bracket 624 is fixedly connected to one side of the drive block 4. The rotary drive assembly 2 includes a drive motor 21, a drive pulley 22, a transmission belt 23, and a transmission pulley 24. The output end of the drive motor 21 is connected to the center of the drive pulley 22. One end of the transmission belt 23 is connected to the outer side of the drive pulley 22. The other end of the transmission belt 23 is connected to the outer side of the transmission pulley 24. The center of the transmission pulley 24 is fixedly connected to one end of the lead screw body 3.

[0025] The specific settings and functions of this embodiment are described below. The drive motor 21 drives the drive pulley 22 to rotate, the drive pulley 22 drives the transmission belt 23 to move, and the transmission belt 23 drives the transmission pulley 24 to rotate, causing the lead screw body 3 to rotate. The lead screw body 3 drives the drive block 4 and the mounting side plate 5 to adjust the height. When the drive block 4 is raised and lowered, the drive block 4 drives the lead screw lubricator 6 to move. The lubricating oil inside the oil outlet ring 611 drips through the oil outlet head 613 onto the coating brush 623 inside the coating ring 622, so that the coating brush 623 evenly coats the lubricating oil on the outside of the lead screw body 3. A stable oil film is formed between the lead screw body 3 and the drive block 4, resulting in a continuous and stable lubrication effect.

[0026] Example 2: Figure 1 - Figure 4As shown, the adjustable travel lifting table lead screw of this utility model includes a lifting chamber 1. A rotary drive assembly 2 is fixedly installed at one end inside the lifting chamber 1. The output end of the rotary drive assembly 2 is connected to the lead screw body 3. A drive block 4 is threadedly connected to the outer side of the lead screw body 3. A mounting side plate 5 is fixedly connected to one side of the drive block 4. A slider 41 is symmetrically fixedly connected to the other side of the drive block 4. A slide rail 42 is slidably connected to the other side of the slider 41. The slide rail 42 is fixedly installed inside the lifting chamber 1. A lead screw lubricator 6 is provided on the outer side of one end of the lead screw body 3. The lead screw lubricator 6 includes an oil outlet assembly 61 and a lead screw lubricator 6. The screw surface coating assembly 62 and the oil outlet assembly 61 are fixedly installed on one side of the screw surface coating assembly 62. The oil outlet assembly 61 includes an oil outlet ring 611, an oil inlet pipe 612 and several oil outlet heads 613. The input ends of the several oil outlet heads 613 are fixedly connected to the inner side of the oil outlet ring 611, and the input end of the oil inlet pipe 612 is fixedly connected to the outer side of the oil outlet ring 611. The input end of the oil inlet pipe 612 is movably snapped with a sealing plug 614. An oil replenishment port 11 is opened on one side of the lifting chamber 1. A sealing baffle 12 is movably snapped inside the oil replenishment port 11. A lubricating oil collection tray 7 is fixedly installed at the bottom of the lifting chamber 1.

[0027] The overall effect of this embodiment is that the user can periodically replenish the lubricating oil in the oil outlet assembly 61. First, adjust the position of the drive block 4 so that the screw lubricator 6 on one side of the drive block 4 moves to the side of the oil replenishment port 11. Remove the sealing baffle 12 from the oil replenishment port 11, and then remove the sealing plug 614. The oil replenishment pipe extends through the oil replenishment port 11 into the input end of the oil inlet pipe 612 to replenish the oil outlet ring 611, so that the oil outlet ring 611 can continuously output lubricating oil. The lubricating oil that cannot adhere to the surface of the screw body 3 will drip into the inside of the lubricating oil collection tray 7, preventing the lubricating oil from splashing to the bottom of the lifting chamber 1 and maintaining the cleanliness of the internal environment of the lifting chamber 1.

[0028] The device is used and operates as follows: The drive motor 21 drives the drive pulley 22 to rotate, the drive pulley 22 drives the transmission belt 23 to move, the transmission belt 23 drives the transmission pulley 24 to rotate, causing the lead screw body 3 to rotate. The lead screw body 3 drives the drive block 4 and the mounting side plate 5 to adjust the height. When the drive block 4 is raised or lowered, the drive block 4 drives the lead screw lubricator 6 to move. The lubricating oil inside the oil outlet ring 611 drips through the oil outlet head 613 onto the coating brush 623 inside the coating ring 622, so that the coating brush 623 evenly coats the lubricating oil on the outside of the lead screw body 3, and a stable oil film is formed between the lead screw body 3 and the drive block 4.

[0029] Users periodically replenish the lubricating oil in the oil outlet assembly 61. First, adjust the position of the drive block 4 so that the screw lubricator 6 on one side of the drive block 4 moves to the side of the oil replenishment port 11. Remove the sealing baffle 12 from the oil replenishment port 11, and then remove the sealing plug 614. The oil replenishment pipe extends through the oil replenishment port 11 into the input end of the oil inlet pipe 612 to replenish the oil outlet ring 611, so that the oil outlet ring 611 can continuously output lubricating oil. The lubricating oil that cannot adhere to the surface of the screw body 3 will drip into the interior of the lubricating oil collection tray 7.

[0030] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. An adjustable travel lifting table lead screw, comprising a lifting chamber (1), wherein a rotary drive assembly (2) is fixedly installed at one end inside the lifting chamber (1), the output end of the rotary drive assembly (2) is drivenly connected to a lead screw body (3), a drive block (4) is threadedly connected to the outer side of the lead screw body (3), a mounting side plate (5) is fixedly connected to one side of the drive block (4), and a slider (41) is symmetrically fixedly connected to the other side of the drive block (4), and a slide rail (42) is slidably connected to the other side of the slider (41), the slide rail (42) being fixedly installed inside the lifting chamber (1), characterized in that: A screw lubricator (6) is provided on the outer side of one end of the screw body (3). The screw lubricator (6) includes an oil outlet assembly (61) and a screw surface coating assembly (62). The oil outlet assembly (61) is fixedly installed on one side of the screw surface coating assembly (62).

2. The adjustable travel lifting table lead screw according to claim 1, characterized in that: The oil outlet assembly (61) includes an oil outlet ring (611), an oil inlet pipe (612), and a plurality of oil outlet heads (613). The input ends of the plurality of oil outlet heads (613) are fixedly connected to the inner side of the oil outlet ring (611), and the input end of the oil inlet pipe (612) is fixedly connected to the outer side of the oil outlet ring (611).

3. The adjustable travel lifting table screw according to claim 2, characterized in that: The inlet end of the oil inlet pipe (612) is movably connected to a sealing plug (614).

4. The adjustable travel lifting table lead screw according to claim 1, characterized in that: The lead screw surface coating assembly (62) includes a mounting plate (621) and a coating ring (622). The coating ring (622) is fixedly installed inside the mounting plate (621), and a plurality of coating brushes (623) are fixedly bonded inside the coating ring (622).

5. The adjustable stroke lifting table screw according to claim 4, characterized in that: A mounting bracket (624) is fixedly connected to one side of the mounting plate (621), and the other end of the mounting bracket (624) is fixedly connected to one side of the drive block (4).

6. The adjustable stroke lifting table lead screw according to claim 1, characterized in that: The lifting chamber (1) has an oil replenishment port (11) on one side, and a sealing baffle (12) is movably engaged inside the oil replenishment port (11).

7. The adjustable travel lifting table lead screw according to claim 1, characterized in that: A lubricating oil collection tray (7) is fixedly installed at the bottom of the lifting chamber (1).

8. The adjustable travel lifting table lead screw according to claim 7, characterized in that: The rotary drive assembly (2) includes a drive motor (21), a drive pulley (22), a transmission belt (23), and a transmission pulley (24). The output end of the drive motor (21) is connected to the center of the drive pulley (22). One end of the transmission belt (23) is connected to the outside of the drive pulley (22), and the other end of the transmission belt (23) is connected to the outside of the transmission pulley (24). The center of the transmission pulley (24) is fixedly connected to one end of the lead screw body (3).

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