Quick dismounting structure of lifting column and frame for lifting table

Abstract

This utility model discloses a quick-release and detachable structure for the lifting column and frame of a height-adjustable desk, including a motor mounting box, a frame assembly, and a locking assembly. The motor mounting box has a first locking hole, and the frame assembly has a second locking hole. The locking assembly includes a locking tongue, a lock body base, an elastic element, and a connecting rod assembly. The locking tongue is connected to a limiting groove in the lock body base via the connecting rod assembly, and the locking tongue is also connected to the limiting groove via the elastic element. When the connecting rod assembly rotates, it causes the locking tongue to retract synchronously along the limiting groove and disengage from the corresponding second locking hole, achieving quick disassembly of the frame assembly and the motor mounting box. When the connecting rod assembly is reset by the elastic element, it causes the locking tongue to pop out synchronously along the limiting groove, pass through the first locking hole, and insert into the second locking hole, achieving quick installation of the frame assembly and the motor mounting box. This utility model not only enables tool-free quick disassembly and assembly, simplifying the operation process, but also achieves automatic and precise locking and anti-misoperation design, while improving product lifespan.

Description

Technical Field

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

[0002] A height-adjustable desk typically consists of components such as a height-adjustable column, control box, hand controller, desktop frame, and desktop panel. By electrically adjusting the height of the height-adjustable column, the desktop can be adjusted to different heights to meet the needs of people of different heights.

[0003] Currently, most mainstream height-adjustable desks on the market generally use traditional mechanical fastening methods for the final assembly and connection of structural components. Specifically, this solution uses bolts (screws) and matching nuts to lock the fasteners through pre-drilled holes in adjacent components such as the column and frame, and the frame and desktop, thereby achieving a rigid connection and fixation between the various structural components. This bolt-and-nut fastening method (hereinafter referred to as the "existing assembly solution") is usually partially completed by the manufacturer or distributor at the product manufacturing stage, but the final fastening or overall assembly steps are often left to the end user to complete after receiving the product.

[0004] The existing assembly method has the following drawbacks:

[0005] 1. Heavy assembly burden for end users, relying on expertise and tools: Ordinary consumers generally lack professional knowledge and experience in mechanical structure assembly, as well as the necessary specialized assembly tools (such as electric screwdrivers, torque wrenches, etc.). Understanding complex assembly drawings, accurately identifying fasteners of different specifications, mastering the correct installation sequence, and achieving sufficient tightening torque present a high barrier to entry for users.

[0006] 2. Limited Installation Guidance and Poor User Experience: Although the product comes with an installation manual, extensive customer feedback and service records show that relying solely on written or illustrated instructions often leads to cumbersome steps, component confusion, and excessive time consumption. "Installation difficulty" is a common complaint. The manual's guidance is often less effective in actual operation.

[0007] 3. Potential operational risks exist: Users performing installation without the necessary expertise and tools may experience the following risks:

[0008] Inadequate fastening: Loose connections affect the overall stability and load-bearing capacity of the product, and may cause shaking or abnormal noise.

[0009] Over-tightening: can damage components (such as stripped threads) or cause localized stress concentration, affecting product lifespan and safety.

[0010] Assembly error: Incorrect connection of parts or omission of steps, resulting in the product being unable to be used properly or malfunctioning. Utility Model Content

[0011] The purpose of this utility model is to provide a technical solution for a quick-assembly and disassembly structure of the lifting column and frame for a height-adjustable desk, which not only enables tool-free quick assembly and disassembly, but also allows users to complete the installation simply by aligning the parts and pushing them in, without any tools or tightening operations. Disassembly can be completed by simply turning the step screws, greatly simplifying the operation process. In addition, it can achieve automatic and precise locking and anti-misoperation design, while improving the product's service life and reducing structural damage caused by installation errors.

[0012] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0013] The quick-assembly and disassembly structure for the lifting column and frame of the height-adjustable desk includes:

[0014] Rising column;

[0015] Motor mounting box, the motor mounting box is connected to the lifting column, and the motor mounting box is provided with a first lock hole;

[0016] The frame component has a second lock hole;

[0017] Its features are:

[0018] It also includes a locking assembly located in the motor mounting box. The locking assembly includes a latch, a lock body base, an elastic element, and a connecting rod assembly. The latch is connected to the limiting groove of the lock body base through the connecting rod assembly, and the latch is connected to the limiting groove through the elastic element.

[0019] When a rotational force is applied to the linkage assembly, the linkage assembly drives the locking tongue to retract synchronously along the limiting groove and disengage from the corresponding second locking hole, thereby realizing the quick disassembly of the frame assembly and the motor mounting box.

[0020] When the linkage assembly loses the applied rotational force, the elastic element resets, causing the locking tongue to pop out synchronously along the limiting groove, pass through the first locking hole, and then insert into the corresponding second locking hole, thus realizing the quick installation of the frame assembly and the motor mounting box.

[0021] This quick-release structure is simple and allows for tool-free assembly and disassembly. Users only need to align the parts and push them in to complete the installation without any tools or tightening operations. Disassembly is achieved by simply turning the step screw, which greatly simplifies the operation process. In addition, it features automatic and precise locking and anti-misoperation design, which improves the product's service life and reduces structural damage caused by installation errors.

[0022] Furthermore, the linkage assembly includes a transmission rod and a latch linkage. The center of the rotating rod is rotatably connected to the lock body base via a second-step screw. Both ends of the rotating rod are rotatably connected to a section of the latch linkage via first-step screws. The other end of the latch linkage is rotatably connected to the latch via a third-step screw, which is used to drive the latch to reciprocate along the limiting groove.

[0023] Furthermore, the lock body base is provided with a clearance groove, and the third step screw passes through the clearance groove and moves horizontally along the clearance groove.

[0024] Furthermore, an arc-shaped groove is provided on one side of the latch linkage. When the linkage assembly and the latch are in the locked state, the latch linkage locks the second step screw through the arc-shaped groove.

[0025] Furthermore, a mating point is provided on the side of the lock body base near the lock tongue, and a mating hole is provided on the motor mounting box. The positioning and mating between the lock body base and the motor mounting box are achieved by inserting the mating point into the mating hole.

[0026] Furthermore, the latch includes a first inclined top surface and a second inclined top surface, which are located on the side close to the first lock hole.

[0027] Furthermore, the elastic element is a return spring.

[0028] Furthermore, it also includes a limiting component comprising at least one limiting pin and at least one engaging locking end that engages with the limiting pin. The limiting pin is located on the side of the motor mounting box, and the engaging locking end is located on the frame assembly. The engaging connection between the motor mounting box and the frame assembly is achieved by the limiting pin engaging with the engaging locking end.

[0029] Furthermore, the frame assembly includes an outer frame tube and a side plate connecting plate. The outer frame tube and the side plate connecting plate are connected end to end to form a rectangular structure. The locking end is located on the outer frame tube. The edge of the outer frame tube is connected to the locking end through the guiding end, so that the limiting pin slides into the locking end along the guiding end. The second locking hole is located on the inner side of the outer frame tube.

[0030] Furthermore, it also includes a side panel assembly, which includes a side panel, a mating surface, and a support foot. The side panel and the mating surface are connected to form an L-shaped structure. The support foot is located on the bottom surface of the side panel and has a mating opening and a limiting notch. The outer tube of the frame has a slot. By inserting the support foot into the slot, the limiting notch is locked into the slot. The mating surface is mated to the side panel connecting plate, and at this time, the mating opening coincides with the mating locking end.

[0031] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0032] This utility model features a simple quick-release structure, enabling tool-free assembly and disassembly. Users simply align the components and push them in to complete installation, requiring no tools or tightening operations. Disassembly is achieved by simply rotating the step screw, significantly simplifying the process. Furthermore, it features automatic, precise locking and anti-misoperation design. Through the sliding engagement of the limiting pin and locking end, the locking tongue automatically springs into the second locking hole on the outer tube of the frame under the action of the return spring, ensuring a rigid connection without the risk of loosening. The sloping top surface causes the locking tongue to automatically retract when encountering resistance, preventing damage to components caused by forced installation. The synchronous structure of the locking tongue and connecting rod assembly ensures consistent locking action, improving safety and extending product lifespan. It avoids the problems of "over-tightening" (leading to stripping and stress concentration) or "over-loosening" (leading to wobbling) in traditional fastening methods, reducing structural damage caused by incorrect installation. The return spring built into the lock body base ensures that repeated assembly and disassembly do not affect the stability of the locking force. Attached image description:

[0033] The present invention will be further described below with reference to the accompanying drawings:

[0034] Figure 1 This is an installation effect diagram of the quick-assembly and disassembly structure of the lifting column and frame for the height-adjustable table of this utility model;

[0035] Figure 2 This is an exploded view of the lifting column, motor mounting box, and locking assembly in this utility model;

[0036] Figure 3 This is a schematic diagram of the frame component in this utility model;

[0037] Figure 4 for Figure 3 A magnified view of a section at point I;

[0038] Figure 5 This is a schematic diagram of the side panel assembly in this utility model;

[0039] Figure 6 This is an exploded view of the locking component in this utility model;

[0040] Figure 7 This is a schematic diagram of the locking assembly in this utility model;

[0041] Figure 8 This is a schematic diagram of the locking component in its reset state in this utility model;

[0042] Figure 9 This is a schematic diagram of the locking assembly in its tightened state in this utility model;

[0043] Figure 10 This is a schematic diagram showing the connection between the lifting column, motor mounting box, and frame assembly in this utility model;

[0044] Figure 11 for Figure 10 A magnified view of section II in the middle.

[0045] In the diagram: 10 - Lifting column; 11 - First sleeve; 12 - Second sleeve; 13 - Third sleeve;

[0046] 20-Mounting box body; 20-1-Matching hole; 21-Drive motor; 22-1-First limit pin; 22-2-Second limit pin; a1-First locking hole; 23-Mounting box cover;

[0047] 30-Locking assembly; 31-Lock body base; 31-1-Mating point; 32-Lock tongue; 32-1-First inclined top surface; 32-2-Second inclined top surface; 33-Return spring; 34-Lock tongue connecting rod; 34-1-Arc groove; 35-Transmission rod; 36-Limiting groove; 37-First step screw; 37-1-Second step screw; 37-2-Third step screw; 38-Leaning groove; 39-Component fixing hole;

[0048] 40 - Frame assembly; 41 - Outer frame tube; 44 - Side plate connecting plate; a2 - Second lock hole; b - Mating guide end; c - Mating locking end;

[0049] 50-Side panel assembly; 51-Mating opening; 52-Limiting notch; 53-Mating surface; 54-Groove; 55-Side panel; 56-Supporting foot. Detailed Implementation

[0050] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0051] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0052] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0053] like Figures 1 to 11As shown, this utility model has a quick assembly and disassembly structure for the lifting column 1010 and the frame, including the lifting column 10, the motor mounting box and the frame assembly 40.

[0054] The lifting column 10 may include at least two or more sleeves. In this application, the first sleeve 11, the second sleeve 12 and the third sleeve 13 are used as an example. The first sleeve 11 is sleeved on the outside of the second sleeve 12 and the second sleeve 12 is sleeved on the outside of the third sleeve 13. However, other sleeve sequences may also be used.

[0055] The motor mounting box is connected to the top of the third sleeve 13 of the lifting column 10, and the two can be connected by welding.

[0056] The motor mounting box may include a detachably connected mounting box body 20 and a mounting box cover 23. The drive motor 21 and locking assembly 30 are housed inside the mounting box body 20.

[0057] The motor mounting box body 20 is symmetrically provided with first lock holes a1.

[0058] The frame assembly 40 includes an outer frame tube 41 and a side plate 55 connecting plate 44. The outer frame tube 41 and the side plate 55 connecting plate 44 are connected end to end to form a rectangular structure. The locking end c is located on the outer frame tube 41. The edge of the outer frame tube 41 is connected to the locking end c through the guiding end b, so that the limiting pin slides into the locking end c along the guiding end b. The second locking hole a2 is located on the inner side of the outer frame tube 41.

[0059] The quick-assembly structure also includes a side plate 55 assembly 50, which includes a side plate 55, a mating surface 53, and a support foot 56. The side plate 55 and the mating surface 53 are connected to form an L-shaped structure. The support foot 56 is located on the bottom surface of the side plate 55. The support foot 56 is provided with a mating opening 51 and a limiting notch 52. The outer tube 41 of the frame is provided with a slot 54. The support foot 56 is inserted into the slot 54, so that the limiting notch 52 locks the slot 54. The mating surface 53 is mated with the connecting plate 44 of the side plate 55. At this time, the mating opening 51 coincides with the mating locking end c.

[0060] The locking assembly 30 includes a bolt 32, a lock body base 31, an elastic element, and a connecting rod assembly. The bolt 32 is connected to the limiting groove 36 of the lock body base 31 through the connecting rod assembly, and the bolt 32 is connected to the limiting groove 36 through the elastic element.

[0061] The linkage assembly includes a transmission rod 35 and a latch linkage 34. The center of the rotating rod is rotatably connected to the lock body base 31 via a second step screw 37-1. Both ends of the rotating rod are rotatably connected to a section of the latch linkage 34 via a first step screw 37. The other end of the latch linkage 34 is rotatably connected to the latch 32 via a third step screw 37-2, which is used to drive the latch 32 to reciprocate along the limiting groove 36.

[0062] The lock body base 31 is provided with a relief groove 38, and the third step screw 37-2 passes through the relief groove 38 and moves horizontally along the relief groove 38.

[0063] The lock body base 31 is also provided with two component fixing holes 39, which can be fixedly connected to the mounting box 20 by passing screws through the component fixing holes 39.

[0064] The locking tongue linkage 34 has an arc-shaped groove 34-1 on one side. When the linkage assembly and the locking tongue 32 are in the locked state, the locking tongue linkage 34 locks the second step screw 37-1 through the arc-shaped groove 34-1.

[0065] The lock body base 31 has a mating point 31-1 on the side near the lock tongue 32, and the motor mounting box has a mating hole 20-1. The positioning and mating between the lock body base 31 and the motor mounting box are achieved by inserting the mating point 31-1 into the mating hole 20-1.

[0066] The latch 32 includes a first inclined top surface 32-1 and a second inclined top surface 32-2, which are located on the side close to the first lock hole a1.

[0067] The elastic element is a return spring 33.

[0068] The quick-assembly structure also includes a limiting component, which includes at least one limiting pin and at least one locking end c that engages with the limiting pin. The limiting pin includes a first limiting pin 22-1 and a second limiting pin 22-2. Both the first limiting pin 22-1 and the second limiting pin 22-2 are located on the side of the mounting box 20 of the motor mounting box. The locking end c is located on the inner side of the outer frame tube 41 of the frame assembly 40. The engaging connection between the motor mounting box and the frame assembly 40 is achieved by the limiting pin engaging with the locking end c.

[0069] When a rotational force is applied to the linkage assembly, the linkage assembly drives the locking tongue 32 to retract synchronously along the limiting groove 36 and disengage from the corresponding second locking hole a2, thereby realizing the quick disassembly of the frame assembly 40 from the motor mounting box.

[0070] When the linkage assembly loses the applied rotational force, the elastic element resets, causing the locking tongue 32 to pop out synchronously along the limiting groove 36 and pass through the first locking hole a1 before inserting into the corresponding second locking hole a2, thereby realizing the quick installation of the frame assembly 40 and the motor mounting box.

[0071] This quick-release structure is simple, enabling tool-free assembly and disassembly. Users only need to align the components and push them in to complete the installation, without any tools or tightening operations. Disassembly only requires rotating the transmission component to unlock and disassemble, greatly simplifying the operation process. Moreover, it features automatic and precise locking and anti-misoperation design. Through the sliding engagement of the limiting pin with the locking end c, the locking tongue 32 automatically springs into the second locking hole a2 on the outer tube 41 of the frame under the action of the return spring 33, ensuring a rigid connection without the risk of loosening. The sloping top surface causes the locking tongue 32 to automatically retract when it encounters resistance, avoiding component damage caused by forced installation. The synchronous structure of the locking tongue 32 and the transmission component ensures consistent locking action, improves safety, and extends product lifespan. It avoids the problems of "over-tightening" (leading to stripping and stress concentration) or "over-loosening" (leading to shaking) in traditional fastening, reducing structural damage caused by installation errors. The return spring 33 built into the transmission component does not affect the stability of the locking force during repeated assembly and disassembly.

[0072] The actual installation of this utility model includes the following steps:

[0073] 1. First, the locking component 30 is installed inside the mounting box 20 of the motor mounting box. During installation, the locking tongue 32 is first passed through the first locking hole a1, and then the screw is aligned with the component fixing hole 39 and connected and tightened to the mounting box 20.

[0074] 2. When assembling the lifting column 10 and the frame assembly 40, first insert the side plate 55 assembly 50 along the slot 54. At this time, the limiting notch 52 just locks in place, and at the same time, the mating surface 53 is mated with the side plate 55 connecting plate 44. At this time, the mating port 51 coincides with the mating locking end c.

[0075] 3. Place the lifting column 10 into the frame assembly 40. After the first limiting pin 22-1 and the second limiting pin 22-2 come into contact with the mating guide end b, they automatically slide into the mating locking end c with the first limiting pin 22-1 as the center. At the same time, the first inclined top surface 32-1 of the locking tongue 32 touches the outer tube 41 of the frame and undergoes lateral displacement. The locking tongue 32 retracts, and the return spring 33 synchronously performs related pressing and storing force.

[0076] 4. When the second limiting pin 22-2 contacts the locking end c, the locking tongue 32 is aligned with the second locking hole a2. At this time, the locking tongue 32 is no longer blocked by the outer tube 41 of the frame, and the return spring 33 releases its elastic force to push the locking tongue 32 out.

[0077] 5. Since the locking tongue connecting rod 34 and the transmission rod 35 are connected and fastened with the first step screw 37, the effect of synchronous extension and retraction can be achieved. Therefore, the locking tongue 32 achieves synchronous reset. At this time, the second inclined top surface 32-2 can ensure that the locking tongue 32 can be inserted into the second lock hole a2. Since the third step screw 37-2 passes through the relief groove 38 before fixing the locking tongue 32, the locking tongue 32 has a reset point when resetting and will not directly overextend and disengage.

[0078] 6. When disassembling the lifting column 10 and the frame assembly 40, when the second step screw 37-1 is turned clockwise, the locking tongue 32 retracts synchronously. At this time, the lifting column 10 can be disassembled. During disassembly, the disassembly will be carried out in an arc path with the first limit pin 22-1 as the center. During disassembly, the locking tongue 32 will automatically pop out and reset.

[0079] 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 achieve essentially the same technical effect are all covered within the protection scope of this utility model.

Claims

1. A quick-assembly and disassembly structure for the lifting column and frame of a height-adjustable desk, including: Rising column; A motor mounting box is connected to the lifting column, and the motor mounting box is provided with a first locking hole; A frame assembly, wherein the frame assembly is provided with a second locking hole; Its features are: It also includes a locking assembly disposed in the motor mounting box. The locking assembly includes a latch, a lock body base, an elastic element and a connecting rod assembly. The latch is connected to the limiting groove of the lock body base through the connecting rod assembly, and the latch is connected to the limiting groove through the elastic element. When a rotational force is applied to the linkage assembly, the linkage assembly drives the locking tongue to retract synchronously along the limiting groove and disengage from the corresponding second locking hole, thereby realizing the quick disassembly of the frame assembly and the motor mounting box. When the linkage assembly loses the applied rotational force, the elastic element resets, causing the locking tongue to pop out synchronously along the limiting groove and pass through the first locking hole before inserting into the corresponding second locking hole, thereby realizing the quick installation of the frame assembly and the motor mounting box.

2. The lift column and frame quick detach structure for a lift table according to claim 1, characterized in that: The linkage assembly includes a transmission rod and a latching rod. The center of the transmission rod is rotatably connected to the lock body base via a second-step screw. Both ends of the transmission rod are rotatably connected to a section of the latching rod via first-step screws. The other end of the latching rod is rotatably connected to the latch via a third-step screw, which drives the latch to reciprocate along the limiting groove.

3. The lift column and frame quick detach structure for a lift table according to claim 2, characterized in that: The lock body base is provided with a clearance groove, and the third step screw passes through the clearance groove and moves horizontally along the clearance groove.

4. The lift column and frame quick detach structure for a lift table according to claim 2, characterized in that: One side of the locking tongue connecting rod is provided with an arc-shaped groove. When the connecting rod assembly and the locking tongue are in the locked state, the locking tongue connecting rod locks the second step screw through the arc-shaped groove.

5. The quick-assembly and disassembly structure for the lifting column and frame of a height-adjustable desk according to claim 1, characterized in that: The lock body base has a mating point on the side near the lock tongue, and the motor mounting box has a mating hole. The positioning and mating between the lock body base and the motor mounting box are achieved by inserting the mating point into the mating hole.

6. The quick-assembly and disassembly structure for the lifting column and frame of a height-adjustable desk according to claim 1, characterized in that: The latch includes a first inclined top surface and a second inclined top surface, which are located on the side close to the first lock hole.

7. The quick-assembly and disassembly structure for the lifting column and frame of a height-adjustable desk according to claim 1, characterized in that: The elastic element is a return spring.

8. The quick-assembly and disassembly structure for the lifting column and frame of a height-adjustable table according to any one of claims 1 to 7, characterized in that: It also includes a limiting component, which includes at least one limiting pin and at least one engaging locking end that engages with the limiting pin. The limiting pin is located on the side of the motor mounting box, and the engaging locking end is located on the frame assembly. The engaging connection between the motor mounting box and the frame assembly is achieved by the limiting pin engaging with the engaging locking end.

9. The quick-assembly and disassembly structure for the lifting column and frame of a height-adjustable desk according to claim 8, characterized in that: The frame assembly includes an outer frame tube and a side plate connecting plate. The outer frame tube and the side plate connecting plate are connected end to end to form a rectangular structure. The locking end is located on the outer frame tube. The edge of the outer frame tube is connected to the locking end through a locking guide end, so that the limiting pin slides into the locking end along the locking guide end. The second locking hole is located on the inner side of the outer frame tube.

10. The quick-assembly and disassembly structure for the lifting column and frame of a height-adjustable desk according to claim 9, characterized in that: It also includes a side panel assembly, which includes a side panel, a mating surface, and a support foot. The side panel and the mating surface are connected to form an L-shaped structure. The support foot is located on the bottom surface of the side panel and has a mating opening and a limiting notch. The outer tube of the frame has a slot. The support foot is inserted into the slot, and the limiting notch locks the slot. The mating surface is mated to the side panel connecting plate. At this time, the mating opening coincides with the mating locking end.

Images