A steel frame for an office desk with a position adjustment mechanism

Abstract

This utility model relates to the field of office desk steel frame technology, and discloses an office desk steel frame with a position adjustment mechanism, including a base. The base is connected to a main desktop via a lifting component. An extension desktop is slidably connected to the inner wall of the main desktop. A handle is installed on the right outer wall of the extension desktop. Mounting brackets are fixedly connected to the bottom of the handle on both the front and rear sides. Table legs are rotatably connected to the opposite right side of the mounting brackets. Connecting plates are rotatably connected to the top of each table leg. An eccentric plate is rotatably connected to the opposite left side of the mounting brackets. Fixing blocks are fixedly connected to the bottom left and right sides of the extension desktop. Rotating rods are rotatably connected to the inner walls of each fixing block. In this utility model, the extension desktop can slide to extend or retract as needed, flexibly adjusting the desktop space to meet the needs of various office scenarios; the coordinated adjustment between various components ensures the overall structural stability of the office desk and helps the extension function to play a better role.

Description

Technical Field

[0001] This utility model relates to the field of office desk steel frame technology, and in particular to an office desk steel frame with a position adjustment mechanism. Background Technology

[0002] In modern office environments, people's work needs are becoming increasingly diverse. Different office tasks, such as writing, using computers, reading documents, and conducting group discussions, often require different desktop space layouts and height settings. Traditional office desks typically have fixed steel frame structures, and once the desktop position and height are determined, they are difficult to change, failing to flexibly adapt to various office scenarios. This causes numerous inconveniences for users, affecting work efficiency and comfort.

[0003] In the current office furniture industry, existing steel desk frames present numerous unresolved technical challenges. Regarding extended functionality, many desks feature rigid desktop designs that cannot be flexibly extended or retracted as needed. This makes it difficult to effectively adjust the desktop space according to changes in the actual office environment, significantly limiting their functional expansion and adaptability to diverse office needs. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a steel frame for an office desk with a position adjustment mechanism. This solves the technical problems of limited extension function, insufficient flexibility in desktop space adjustment, and inconvenience in adjusting the height of the main desktop in existing office desks.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A steel frame for an office desk with a position adjustment mechanism includes a base. The base is connected to a main desktop via a lifting assembly. An extension desktop is slidably connected to the inner wall of the main desktop. A handle is installed on the right outer wall of the extension desktop. Mounting brackets are fixedly connected to the bottom of the handle on both the front and rear sides. Table legs are rotatably connected to the opposite right side of the mounting brackets. Connecting plates are rotatably connected to the top of each table leg. An eccentric plate is rotatably connected to the opposite left side of the mounting brackets. Fixing blocks are fixedly connected to the bottom left and right sides of the extension desktop. Rotating rods are rotatably connected to the inner walls of the fixing blocks. Sliding rods are slidably connected to the inner walls of the rotating rods. Tension springs are provided on the inner walls of the rotating rods.

[0007] Furthermore, the top end of the tension spring is connected to the inner wall of the rotating rod, and the bottom end of the tension spring is connected to the top end of the sliding rod.

[0008] Furthermore, the left end of the connecting plate and the bottom end of the slide rod are rotatably connected to the left and right ends of the eccentric plate, respectively.

[0009] Furthermore, the outer wall of the table leg is slidably connected to a telescopic leg, and bolts are provided on the outer wall of the opposite side of the telescopic leg.

[0010] Furthermore, the lifting assembly includes sleeves fixedly connected to the left and right sides of the top of the base. A protective box is fixedly connected to the opposite end of the sleeve. A handle is rotatably connected to the inner wall of the protective box. A worm gear is fixedly connected to the opposite end of the handle. A worm wheel is meshed with the outer wall of the worm gear. A rotating shaft is fixedly connected to the inner wall of the worm wheel. A sliding column is connected to the worm wheel through a rotating assembly. The bottom end of the main tabletop is fixedly connected to the top end of the sliding column.

[0011] Furthermore, the rotating assembly includes a gear fixedly connected to the outer wall of the rotating shaft and a rack located at the opposite end of the sliding column, wherein the gear and the rack are meshed together.

[0012] Furthermore, the outer walls of the rotating shafts are rotatably connected to the inner walls of the protective box, the opposite ends of the worm gears are rotatably connected to the inner walls of the protective box, and the outer walls of the sliding columns are slidably connected to the inner walls of the sleeves.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the extended desktop can slide to extend or retract as needed, flexibly adjusting the size of the desktop space to meet the needs of various office scenarios; the coordinated adjustment between the components ensures the overall stability of the desk structure and helps the extension function to play a better role.

[0015] 2. In this utility model, the worm gear and rack and pinion drive through the throttle can conveniently and accurately adjust the height of the main desktop, meet the personalized height needs of different users, effectively reduce physical fatigue caused by height discomfort, and the self-locking function of the worm gear and the sleeve guide support together ensure that the desktop height is stable and reliable after adjustment, avoids shaking or sliding, and improves the safety and comfort of using the desk. Attached Figure Description

[0016] Figure 1 This is a perspective view of a steel frame for an office desk with a position adjustment mechanism proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of an extended desktop structure of a steel frame for an office desk with a position adjustment mechanism proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the mounting frame structure of a steel desk frame with a position adjustment mechanism proposed in this utility model;

[0019] Figure 4This is a schematic diagram of the connecting plate structure of a steel frame for an office desk with a position adjustment mechanism proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the fixing block structure of a steel frame for an office desk with a position adjustment mechanism proposed in this utility model;

[0021] Figure 6 This is a schematic diagram of a sliding column structure for a steel frame for an office desk with a position adjustment mechanism, as proposed in this utility model.

[0022] Legend:

[0023] 1. Base; 2. Sleeve; 3. Main tabletop; 4. Extended tabletop; 5. Handle; 6. Mounting bracket; 7. Table leg; 8. Telescopic leg; 9. Bolt; 10. Connecting plate; 11. Eccentric plate; 12. Fixing block; 13. Rotating rod; 14. Sliding rod; 15. Tension spring; 16. Sliding column; 17. Protective box; 18. Turning handle; 19. Worm gear; 20. Worm wheel; 21. Rotating shaft; 22. Gear; 23. Rack. Detailed Implementation

[0024] 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.

[0025] Reference Figure 1 - Figure 3 This utility model provides an embodiment of an office desk steel frame with a position adjustment mechanism, including a base 1. The base 1 is connected to a main desktop 3 via a lifting assembly. An extension desktop 4 is slidably connected to the inner wall of the main desktop 3. A handle 5 is installed on the right outer wall of the extension desktop 4. Mounting brackets 6 are fixedly connected to the bottom of the handle 5 on both the front and rear sides. Table legs 7 are rotatably connected to the opposite side of the right side of the mounting brackets 6. Telescopic legs 8 are slidably connected to the outer wall of the table legs 7. Bolts 9 are provided on the opposite outer wall of the telescopic legs 8. Connecting plates 10 are rotatably connected to the top of the table legs 7. An eccentric plate 11 is rotatably connected to the opposite side of the left side of the mounting brackets 6. Fixing blocks 12 are fixedly connected to the bottom left and right sides of the extension desktop 4. (See reference...) Figure 4 and Figure 5The inner wall of the fixed block 12 is rotatably connected to a rotating rod 13, the inner wall of the rotating rod 13 is slidably connected to a sliding rod 14, the inner wall of the rotating rod 13 is provided with a tension spring 15, the top end of the tension spring 15 is connected to the inner wall of the rotating rod 13, and the bottom end of the tension spring 15 is connected to the top end of the sliding rod 14. The left end of the connecting plate 10 and the bottom end of the sliding rod 14 are rotatably connected to the left and right ends of the eccentric plate 11, respectively.

[0026] Specifically, the base 1 is connected to the main desktop 3 via a lifting assembly. This connection allows the main desktop 3 to be height-adjustable relative to the base 1, meeting the personalized needs of different users for desk height and reducing physical fatigue caused by unsuitable height. The inner wall of the main desktop 3 is slidably connected to the extension desktop 4, allowing the extension desktop 4 to slide and extend or retract horizontally relative to the main desktop 3. When a larger desktop area is needed, the extension desktop 4 can be pulled out; when not needed, it can be pushed back, saving space and facilitating flexible adjustment of desktop space size in different office scenarios. The handle 5 is installed on the right outer wall of the extension desktop 4, with mounting brackets 6 fixedly connected to its bottom front and rear sides. The handle 5 allows users to manually operate the sliding of the extension desktop 4, while the mounting brackets 6 serve as the basic structure for connecting subsequent components, playing a role in bearing and transmitting force.

[0027] The right side of the mounting bracket 6 is rotatably connected to the table leg 7, allowing the table leg 7 to rotate relative to the mounting bracket 6. This rotatable connection facilitates subsequent adjustment of the table leg 7's angle. Simultaneously, the left side of the mounting bracket 6 is rotatably connected to the eccentric plate 11. The eccentric plate 11 plays a crucial role in force transmission and angle transformation in the overall structural linkage adjustment, influencing the state of the table leg 7 through its interaction with other components. The outer wall of the table leg 7 is slidably connected to the telescopic leg 8, allowing the telescopic leg 8 to extend and retract along the axial direction of the table leg 7, thereby changing the overall length of the table leg 7 structure. Bolts 9 are installed on the outer wall of the telescopic leg 8 on the opposite side, used to fix the telescopic leg 8 to the table leg 7 after it has been adjusted to the appropriate position, ensuring the stability of the table leg 7's length and meeting the requirements of different ground flatness levels, as well as the overall height and stability of the desk. For example, on uneven ground, the desk can be kept stable by adjusting the telescopic leg 8.

[0028] The top of the table leg 7 is rotatably connected to the connecting plate 10, allowing the force and motion state of the table leg 7 to be transmitted to other connected components through the connecting plate 10 when the angle of the table leg 7 changes. The fixing block 12 is located on the left and right sides of the bottom end of the extended tabletop 4, and its inner wall is rotatably connected to the rotating rod 13. The rotating rod 13 can rotate relative to the fixing block 12, providing a movable joint and limit for subsequent linkage adjustment. The inner wall of the rotating rod 13 is slidably connected to the slide rod 14, and a tension spring 15 is installed inside it. The top of the tension spring 15 is connected to the inner wall of the rotating rod 13, and the bottom is connected to the top of the slide rod 14. The tension spring 15 plays the role of elastic connection and reset. When the entire structure is adjusted and changed, such as when the angle of the table leg 7 changes, the tension spring 15 can store and release energy through elastic deformation, helping each component return to the initial position or maintain a stable state after adjustment. At the same time, the slide rod 14 can slide within the rotating rod 13, coordinating with the rotation, extension and retraction of each component to achieve complex linkage adjustment between the entire structure.

[0029] The left end of the connecting plate 10 and the bottom end of the slide rod 14 are rotatably connected to the left and right ends of the eccentric plate 11, respectively. Through the eccentric plate 11, the movement state of the top of the table leg 7 is transmitted through the connecting plate 10 and associated with the movement state of the slide rod 14. When the angle of the table leg 7 changes, it will drive the eccentric plate 11 to rotate, thereby affecting the position and movement of the slide rod 14. Finally, the coordinated position adjustment between the entire extended desktop 4 and the table leg 7 and other components is realized, ensuring that the overall structure of the desk remains stable and that each part can cooperate with each other to meet the usage requirements under different adjustment operations.

[0030] Reference Figure 1 , Figure 2 and Figure 6 The lifting assembly includes sleeves 2 fixedly connected to the left and right sides of the top of the base 1. A protective box 17 is fixedly connected to the opposite end of the sleeves 2. A handle 18 is rotatably connected to the inner wall of the protective box 17. A worm 19 is fixedly connected to the opposite end of the handle 18. A worm wheel 20 is meshed with the outer wall of the worm 19. A rotating shaft 21 is fixedly connected to the inner wall of the worm wheel 20. A sliding column 16 is connected to the worm wheel 20 through a rotating assembly. The bottom end of the main table 3 is fixedly connected to the top end of the sliding column 16. The rotating assembly includes a gear 22 fixedly connected to the outer wall of the rotating shaft 21 and a rack 23 located at the opposite end of the sliding column 16. The gear 22 and the rack 23 are meshed. The outer wall of the rotating shaft 21 is rotatably connected to the inner wall of the protective box 17. The opposite end of the worm 19 is rotatably connected to the inner wall of the protective box 17. The outer wall of the sliding column 16 is slidably connected to the inner wall of the sleeve 2.

[0031] Specifically, sleeve 2 is fixedly connected to the left and right sides of the top of base 1, providing guidance and support for the sliding column 16. Protective box 17 is fixedly connected to the opposite end of sleeve 2, protecting the internal transmission components. Throttle 18 is rotatably connected to the inner wall of protective box 17, allowing the user to input power by rotating throttle 18. One end of worm gear 19 is fixedly connected to the opposite end of throttle 18, and the other end is rotatably connected to the inner wall of protective box 17. Rotation of throttle 18 drives worm gear 19 to rotate. The outer wall of worm gear 19 meshes with the outer wall of worm wheel 20. When worm gear 19 rotates, it drives worm wheel 20 to rotate. Worm gear 19 and worm wheel 20 have a self-locking function. The inner wall of worm wheel 20 is fixedly connected to the outer wall of rotating shaft 21. Rotation of worm wheel 20 drives rotating shaft 21 to rotate. The outer wall of the rotating shaft 21 is rotatably connected to the inner wall of the protective box 17, ensuring that the rotating shaft 21 can rotate stably. The gear 22 is fixedly connected to the outer wall of the rotating shaft 21. The rotation of the rotating shaft 21 will drive the gear 22 to rotate. The gear 22 is meshed with the rack 23. The rack 23 is fixed to the opposite end of the sliding column 16. The rotation of the gear 22 will convert the rotational motion into the linear motion of the sliding column 16 through meshing with the rack 23. The outer wall of the sliding column 16 is slidably connected to the inner wall of the sleeve 2, ensuring that the sliding column 16 can only slide linearly within the sleeve 2. The bottom end of the main tabletop 3 is fixedly connected to the top end of the sliding column 16. The linear motion of the sliding column 16 will drive the main tabletop 3 to achieve height adjustment. Users can easily operate to adjust the height of the main tabletop 3, and it has a self-locking function to ensure height stability. The overall transmission is stable and reliable.

[0032] Working principle: The user rotates the handle 18 inside the protective box 17. The handle 18 drives the worm gear 19 to rotate inside the protective box 17. The worm gear 19 meshes with and drives the worm wheel 20 to rotate. The worm wheel 20 drives the gear 22 to rotate synchronously through the rotating shaft 21. The gear 22 meshes with the rack 23 on the sliding column 16, converting the rotational motion into the linear lifting and lowering motion of the sliding column 16 along the sleeve 2, thereby adjusting the height of the main desktop 3. After the height is adjusted to the correct position, the self-locking function of the worm gear 19 and the worm wheel 20 locks the current position to prevent the main desktop 3 from sliding on its own. When it is necessary to extend the desktop, pull the handle 5 on the right side of the extension desktop 4. The extension desktop 4 slides horizontally out along the inner wall of the main desktop 3. When the extended tabletop 4 slides, the mounting bracket 6 moves with the handle 5, causing the table leg 7, which is rotatably connected to it, to rotate around the mounting bracket 6, changing the tilt angle of the table leg 7. The rotation of the table leg 7 pulls the eccentric plate 11 to rotate through the connecting plate 10 at the top. The other end of the eccentric plate 11 pushes the slide rod 14 to slide within the rotating rod 13, while compressing or stretching the tension spring 15. If the ground is uneven, the telescopic leg 8 can be slid to adjust the length of the table leg 7. After being fixed by the bolt 9, it is ensured that the table leg 7 stably supports the extended tabletop 4. When there is no need to extend, push the extended tabletop 4 back, and the tension spring 15 will elastically reset, causing the slide rod 14, the eccentric plate 11 and the table leg 7 to return to their initial positions, completing the structural linkage reset.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An office desk stand having a position adjusting mechanism, characterized by, It includes a base (1), the base (1) is connected with a main desktop (3) through a lifting component, an extension desktop (4) is slidably connected to the inner wall of the main desktop (3), a handle (5) is installed on the outer wall of the right side of the extension desktop (4), mounting brackets (6) are fixedly connected to both the front and rear sides of the bottom end of the handle (5), table legs (7) are rotatably connected to the opposite sides on the right side of the mounting brackets (6), connecting plates (10) are rotatably connected to the top ends of the table legs (7), eccentric plates (11) are rotatably connected to the opposite sides on the left side of the mounting brackets (6), fixing blocks (12) are fixedly connected to both the left and right sides of the bottom end of the extension desktop (4), rotating rods (13) are rotatably connected to the inner walls of the fixing blocks (12), sliding rods (14) are slidably connected to the inner walls of the rotating rods (13), and tension springs (15) are arranged in the inner walls of the rotating rods (13).

2. The office desk steel frame having a position adjusting mechanism according to claim 1, wherein: The top end of the tension spring (15) is connected to the inner wall of the rotating rod (13), and the bottom end of the tension spring (15) is connected to the top end of the sliding rod (14).

3. The office desk steel frame having a position adjusting mechanism according to claim 1, wherein: The left end of the connecting plate (10) and the bottom end of the sliding rod (14) are respectively rotatably connected to the left and right ends of the eccentric plate (11).

4. A steel frame for a desk with a position adjustment mechanism according to claim 1, characterized in that: A telescopic leg (8) is slidably connected to the outer wall of the table leg (7), and bolts (9) are arranged on the outer walls of the opposite sides of the telescopic leg (8).

5. The steel frame of a desk with a position adjustment mechanism according to claim 1, wherein: The lifting component includes sleeves (2) fixedly connected to both the left and right sides of the top end of the base (1), protective boxes (17) are fixedly connected to the opposite ends of the sleeves (2), rotary handles (18) are rotatably connected to the inner walls of the protective boxes (17), worms (19) are fixedly connected to the opposite ends of the rotary handles (18), worm wheels (20) are meshed with the outer walls of the worms (19), a rotating shaft (21) is fixedly connected to the inner wall of the worm wheel (20), the worm wheel (20) is connected with a sliding column (16) through a rotating component, and the bottom end of the main desktop (3) is fixedly connected to the top end of the sliding column (16).

6. The steel frame of a desk with a position adjustment mechanism according to claim 5, characterized in that: The rotating component includes a gear (22) fixedly connected to the outer wall of the rotating shaft (21) and a rack (23) located at the opposite ends of the sliding column (16), and the gear (22) is meshed with the rack (23).

7. A steel frame for a desk with a position adjustment mechanism according to claim 5, characterized in that: The outer walls of the rotating shafts (21) are rotatably connected to the inner walls of the protective boxes (17), the opposite ends of the worms (19) are rotatably connected to the inner walls of the protective boxes (17), and the outer walls of the sliding columns (16) are slidably connected to the inner walls of the sleeves (2).

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