Quick dismounting structure of lifting column

Abstract

This utility model discloses a quick-assembly and disassembly structure for a lifting column, comprising: a lifting column, a motor box, and a frame tube. The motor box is located at the top of the lifting column, and the frame tube connects to the motor box. A positioning component is provided on the side of the motor box, and a receiving groove is formed on the frame tube. A locking groove that engages with the positioning component is formed on the inner wall of the receiving groove. A limiting pin is provided at one end of the motor box, and a locking component is rotatably connected to the frame tube. The locking component abuts against the limiting pin, thereby limiting the motor box to the frame tube. This utility model achieves quick assembly and disassembly of the lifting column and the frame tube without the need for tools. It is simple to operate, less prone to errors, and replaces the complex and error-prone manual bolt tightening process, significantly improving the usability, safety, and reliability of the product, and also enhancing the user experience.

Description

Technical Field

[0001] This utility model belongs to the field of height-adjustable desk technology, and in particular relates to a quick-assembly and disassembly structure for a height-adjustable column. Background Technology

[0002] A height-adjustable desk typically consists of a height-adjustable column, control box, hand controller, desktop frame, and desktop panel. Currently, the height-adjustable column and desktop frame are generally connected by bolts and matching nuts or pre-drilled screw holes to achieve a rigid connection and fixation.

[0003] During the assembly process, users need to use special assembly tools (such as electric screwdrivers, torque wrenches, etc.), which requires certain operation skills and has the following defects: ① Inadequate tightening may lead to loosening, abnormal noise, or even structural instability during use due to improper installation; ② Over-tightening may damage components (such as stripped threads) or cause local stress concentration, affecting the product's service life and safety.

[0004] The existing patent document "An easy-to-lift electric lifting table" (publication number: CN222982660U) discloses that "the top of the telescopic column is provided with a drive box, and the drive box is fixedly connected to the sleeve of the frame by bolts", which also has the above-mentioned technical problem. Summary of the Invention

[0005] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art and provide a quick assembly and disassembly structure for a lifting column. This structure enables quick assembly and disassembly of the lifting column and the frame tube without the need for tools. It is simple to operate, less prone to errors, and replaces the complex and error-prone manual bolt tightening process. This significantly improves the ease of use, safety and reliability of the product, and also enhances the user experience.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A quick-assembly and disassembly structure for a lifting column, comprising:

[0008] Rising column;

[0009] A motor box located at the top of the lifting column is used to install the motor.

[0010] A frame tube with a receiving groove is connected to a motor box;

[0011] The key feature is that a positioning component is provided on the side of the motor box, and a slot is formed on the inner wall of the receiving groove to engage with the positioning component; a limiting pin is provided at one end of the motor box, and a locking component is rotatably connected to the frame tube. The locking component abuts against the limiting pin, thereby limiting the motor box to the frame tube. This quick-assembly and disassembly structure enables rapid assembly and disassembly of the lifting column and the frame tube without the need for tools. It is simple to operate, less prone to errors, and replaces the complex and error-prone manual bolt tightening process, significantly improving the product's usability, safety, and reliability, and enhancing the user experience.

[0012] Furthermore, the positioning component includes a first positioning pin, and the slot includes a first slot, which engages with the first positioning pin. By engaging the first positioning pin with the first slot, the motor box is quickly positioned on the frame tube, preventing it from sliding freely laterally. This replaces screw fixing, resulting in quick operation, low stress, and low difficulty.

[0013] Furthermore, the positioning component also includes a second positioning pin, and the slot includes a second slot. The second slot includes a guide hole and a tapered hole. The guide hole connects to the tapered hole, and the minimum diameter of the tapered hole matches the diameter of the second positioning pin. The first slot is a variable diameter hole structure, and the minimum diameter of the first slot matches the diameter of the first positioning pin. First, the second positioning pin is inserted into the guide hole until it reaches the tapered hole. Then, the second positioning pin is slid laterally into the tapered hole. Next, the motor box is rotated so that the first positioning pin is engaged in the first slot. The tapered hole engages the second positioning pin, and the first slot engages the first positioning pin. The motor box cannot rotate or slide freely laterally, achieving a limiting and fixing effect. This provides a good fixing effect, replaces screw fixing, and is quick, low-intensity, and easy to operate.

[0014] Furthermore, the locking component includes a connecting end, a raised section, and a transition section. The transition section connects the connecting end and the raised section. The connecting end rotatably connects to the frame tube, and the locking component presses against the limiting pin through the raised section. Rotating the locking component causes the raised section to press against the limiting pin, resulting in tight contact and high friction, making it difficult for the component to detach freely. The limiting pin cannot move freely, thus restricting the motor box from detaching from the frame tube and improving the installation stability of the motor box.

[0015] Furthermore, the inner wall of the receiving groove is provided with mating holes corresponding to the connecting end. The mating holes are clearance-fitted with the connecting end, which facilitates the disassembly and assembly of the locking parts, making them easy to install and use, and flexible and convenient.

[0016] Furthermore, a handle section is provided on the connecting end, making it easier for users to apply force and grip, and to operate the locking mechanism more effectively.

[0017] Furthermore, the connecting end, protruding section, and transition section are integrally molded, enabling rapid molding, structural stability, and reliable use.

[0018] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0019] This invention enables quick assembly and disassembly of the lifting column and frame tubing without the need for tools. It is simple to operate, less prone to errors, and replaces the complex and error-prone manual bolt tightening process. This significantly improves the product's usability, safety, and reliability, and also enhances the user experience. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0022] Figure 2 This is a schematic diagram of the connection between the motor box and the frame tubing in Example 1;

[0023] Figure 3 This is a schematic diagram of the connection between the motor box and the frame tubing in Embodiment 1;

[0024] Figure 4 This is a schematic diagram of the connection between the lifting column and the motor box in Embodiment 1;

[0025] Figure 5 This is a schematic diagram of the locking component in Example 1;

[0026] Figure 6 This is a schematic diagram of the connection between the motor box and the frame tubing in Example 2;

[0027] Figure 7 This is a schematic diagram of the connection between the motor box and the frame tubing in Example 2;

[0028] Figure 8 This is a schematic diagram of the connection between the frame tubes and the side plates in Example 2.

[0029] In the diagram: 1-Lifting column; 2-Motor box; 3-Frame tube; 4-Side plate; 5-First positioning pin; 6-Receiving groove; 7-First slot; 8-Limiting pin; 9-Locking component; 10-Connecting end; 11-Protruding section; 12-Transition section; 13-Matching hole; 14-Handle section; 15-Notch; 16-Second positioning pin; 17-Second slot; 18-Guide hole; 19-Gradual hole. Detailed Implementation

[0030] like Figures 1 to 5 The image shown is an embodiment of this utility model.

[0031] A quick-assembly and disassembly structure for a lifting column includes: a lifting column 1, a motor box 2, and a frame tube 3. The motor box 2 is welded and fixed to the top of the lifting column 1 and is used to install the motor. The side of the frame tube 3 is fixedly connected to a side plate 4 by screws, and the side plate 4 is used to install the desktop panel.

[0032] Positioning components are provided on both sides of the motor box 2. The positioning components include a first positioning pin 5. A receiving groove 6 with an opening facing downward is provided on the frame tube 3. A slot is provided on the inner wall of the receiving groove 6. The slot extends to the bottom surface of the frame tube 3. The slot includes a first slot hole 7. The first slot hole 7 is engaged with the first positioning pin 5.

[0033] One end of the motor box 2 is provided with a limiting pin 8, and a locking component 9 is rotatably connected to the frame tube 3. The locking component 9 includes a connecting end 10, a protruding section 11 and a transition section 12. The transition section 12 connects the connecting end 10 and the protruding section 11. The connecting end 10, the protruding section 11 and the transition section 12 are integrally formed structures, which can be quickly formed, have a stable structure and are reliable in use.

[0034] To avoid the limiting pin 8 during disassembly and assembly, the protruding section 11 and the transition sections 12 at both ends can be designed as a U-shaped structure.

[0035] During assembly, the first positioning pin 5 is first inserted into the first slot 7 to quickly limit the motor box 2 on the frame tube 3, preventing the motor box 2 from sliding freely laterally. This replaces the screw fixing method, making the operation quick, less strenuous, and easier. Then, the locking part 9 is rotated so that the protruding section 11 presses against the limiting pin 8. The two are in close contact with high friction, making it difficult for them to separate freely. The limiting pin 8 cannot move freely, preventing the first positioning pin 5 from freely dislodging from the first slot 7, thus restricting the motor box 2 from freely detaching from the frame tube 3 and improving the installation stability of the motor box 2. During disassembly, the locking part 9 is rotated in the opposite direction, causing the protruding section 11 to separate from the limiting pin 8, so that the protruding section 11 will not block the limiting pin 8. At this point, the motor box 2 can be removed.

[0036] This utility model enables quick assembly and disassembly of the lifting column 1 and the frame tube 3 without the need for tools. It is simple to operate and less prone to errors, replacing the complex and error-prone manual bolt tightening process. This significantly improves the ease of use, safety and reliability of the product, and also enhances the user experience.

[0037] The cross-sectional shape of the first positioning pin 5 is preferably a regular polygon to prevent the first positioning pin 5 from rotating freely in the first slot 7, thereby improving the assembly reliability of the motor box 2 and the frame tube 3.

[0038] The inner wall of the receiving groove 6 is provided with a mating hole 13 corresponding to the connecting end 10. The mating hole 13 is clearance-fitted with the connecting end 10, that is, the cross-sectional diameter of the mating hole 13 is larger than the cross-sectional diameter of the connecting end 10.

[0039] When installing the locking component 9, insert one connecting end 10 of the locking component 9 obliquely into a mating hole 13, rotate it with the connecting end 10 as a fulcrum, and then insert the other connecting end 10 of the locking component 9 into another mating hole 13, so that the locking component 9 is installed on the frame pipe 3. The connecting end 10 can rotate in the mating hole 13 and can also be removed from the mating hole 13. The locking component 9 is easy to install and remove, can be used immediately, and is flexible and convenient.

[0040] The connecting end 10 is provided with a handle section 14, which makes it easier for users to apply force and grip, and to better operate the locking part 9.

[0041] A notch 15 is provided on the side plate 4. The notch 15 is used to avoid the handle section 14, thereby increasing the range of motion of the handle section 14.

[0042] like Figures 6 to 8 The image shown is a second embodiment of this utility model.

[0043] In the technical solution based on Embodiment 1, the positioning component includes a first positioning pin 5 and a second positioning pin 16. The slot includes a first slot 7 and a second slot 17. The second slot 17 includes a guide hole 18 and a gradient hole 19. The guide hole 18 is connected to the gradient hole 19. The cross-sectional diameter of the guide hole 18 is not less than the maximum diameter of the gradient hole 19. The minimum diameter of the gradient hole 19 is adapted to the diameter of the second positioning pin 16. The cross-sectional shape of the second positioning pin 16 is preferably circular. The first slot 7 is a variable diameter hole structure. The minimum diameter of the first slot 7 is adapted to the diameter of the first positioning pin 5. The cross-sectional shape of the first positioning pin 5 is preferably circular.

[0044] During installation, first insert the second positioning pin 16 into the guide hole 18 until the second positioning pin 16 reaches the gradient hole 19. Then slide the second positioning pin 16 laterally into the gradient hole 19. Next, rotate the motor box 2 so that the first positioning pin 5 is engaged in the first slot 7. The gradient hole 19 engages the second positioning pin 16, and the first slot 7 engages the first positioning pin 5. The motor box 2 cannot rotate or slide freely laterally, thus achieving a limited fixation. This provides a better fixation effect and replaces the screw fixation method. It is quick to operate, has low strength, and is easy to use. Next, rotate the locking part 9 so that the protruding section 11 presses against the limiting pin 8. The limiting pin 8 cannot move freely, so the first positioning pin 5 cannot freely disengage from the first slot 7, and the second positioning pin 16 cannot freely disengage from the gradient hole 19. This restricts the motor box 2 from freely detaching from the frame tube 3, thus achieving a limited fixation of the motor box 2 on the frame tube 3.

[0045] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A quick-assembly and disassembly structure for a lifting column, comprising: Rising column; A motor box is located at the top of the lifting column, and the motor box is used to install the motor; A frame tube with a receiving groove is provided, and the frame tube is connected to the motor box; Its features are: The side of the motor box is provided with a positioning component, and the inner wall of the receiving groove is provided with a slot that engages with the positioning component. One end of the motor box is provided with a limiting pin, and a locking component is rotatably connected to the frame tube. The locking component presses against the limiting pin to limit the motor box to the frame tube.

2. The quick-assembly and disassembly structure for a lifting column according to claim 1, characterized in that: The positioning component includes a first positioning pin, and the slot includes a first slot hole, which engages with the first positioning pin.

3. The quick-assembly and disassembly structure for a lifting column according to claim 2, characterized in that: The positioning component further includes a second positioning pin, and the slot further includes a second slot, the second slot including a guide hole and a gradient hole, the guide hole communicating with the gradient hole, the minimum diameter of the gradient hole being adapted to the diameter of the second positioning pin, the first slot having a variable diameter hole structure, the minimum diameter of the first slot being adapted to the diameter of the first positioning pin.

4. The quick-assembly and disassembly structure for a lifting column according to claim 1, characterized in that: The locking component includes a connecting end, a protruding section, and a transition section. The transition section connects the connecting end and the protruding section. The connecting end is rotatably connected to the frame tube. The locking component presses against the limiting pin through the protruding section.

5. The quick-assembly and disassembly structure for a lifting column according to claim 4, characterized in that: The inner wall of the receiving groove is provided with a mating hole corresponding to the connecting end, and the mating hole is clearance-fitted with the connecting end.

6. The quick-assembly and disassembly structure for a lifting column according to claim 4, characterized in that: The connecting end is provided with a handle section.

7. The quick-assembly and disassembly structure for a lifting column according to claim 4, characterized in that: The connecting end, the protruding section, and the transition section are integrally formed structures.

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