Quick dismounting structure of lifting column and frame

Abstract

The utility model discloses a quick dismounting structure of lifting stand and frame, including lifting stand, motor installation box is connected in lifting stand, and motor installation box is equipped with first lock hole, frame assembly is equipped with second lock hole, still include the locking assembly in the motor installation box, and the locking assembly includes lock tongue, transmission assembly and elastic part, and lock tongue is connected in motor installation box through transmission assembly, and elastic part is equipped between two lock tongues, when rotating transmission assembly, lock tongue synchronous contraction and separate corresponding second lock hole, realize the quick dismounting between frame assembly and motor installation box, when loosening transmission assembly, elastic part resets, drives lock tongue synchronous and pops out and passes first lock hole and inserts corresponding second lock hole, realizes the quick mounting between frame assembly and motor installation box, the utility model discloses can realize the quick dismounting of exempting from the tool, can realize automatic accurate locking and the design of preventing mistaken operation, improves product service life simultaneously.

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 the height-adjustable 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 the quick assembly and disassembly of the lifting column and frame, which addresses the shortcomings of existing technologies. It not only enables tool-free quick assembly and disassembly, allowing users to complete the installation simply by aligning the components and pushing them in, without any tools or tightening operations, but also allows for unlocking and disassembly by simply rotating the transmission component, greatly simplifying the operation process. Furthermore, it features automatic and precise locking and anti-misoperation design, ensuring that the rigid connection has no risk of loosening, improving safety, extending product lifespan, 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 of the lifting column and frame 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 inside the motor mounting box. The locking assembly includes a locking tongue, a transmission assembly, and an elastic element. The locking tongue is connected to the motor mounting box through the transmission assembly, and the elastic element is located between two opposing locking tongues.

[0019] When the transmission assembly is rotated, the locking tongue retracts synchronously and disengages from the corresponding second locking hole, enabling quick disassembly between the frame assembly and the motor mounting box.

[0020] When the transmission assembly is released, the elastic element resets, causing the locking tongue to pop out synchronously and pass through the first locking hole before inserting into the corresponding second locking hole, thus enabling quick installation between 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 rotating the transmission component, which greatly simplifies the operation process. In addition, it features automatic and precise locking and anti-misoperation design to ensure that the rigid connection has no risk of loosening, improve safety, extend product life, and reduce structural damage caused by installation errors.

[0022] Furthermore, the transmission assembly includes a transmission base, a transmission screw, a bushing, and a locking tongue connector. The transmission screw passes through the motor mounting box and is connected to the transmission base. The transmission base has at least one rotation path groove. The locking tongue connector passes through the bushing and is connected to the locking tongue. The bushing slides along the rotation path groove. By rotating the transmission screw, the transmission base can be rotated, and then the locking tongue can be moved synchronously through the rotation path groove and the bushing to achieve extension and retraction.

[0023] 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.

[0024] Furthermore, the locking tongue also includes a spring engagement point for limiting the elastic element.

[0025] Furthermore, the elastic element is a return spring.

[0026] Furthermore, it also includes a guide assembly for moving the bolt in a straight line. The guide assembly includes a guide member and a positioning member connected to the motor mounting box. The guide member and the positioning member are respectively provided with a first guide groove and a second guide groove. The bolt is provided with a first mating point and a second mating point. The bolt moves in a straight line by moving along the first guide groove and the second guide groove through the first mating point and the second mating point, respectively.

[0027] 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.

[0028] Furthermore, the frame assembly includes an outer frame tube, a locking end is located on the outer frame tube, and the edge of the outer frame tube is connected to the locking end via a 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.

[0029] Furthermore, the frame assembly also includes side plate connecting plates, which are connected end-to-end with the outer frame tubes to form a rectangular structure.

[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 transmission component, significantly simplifying the operation process. Furthermore, it features automatic and precise locking and anti-misoperation design. Through the sliding engagement of the limiting pin with the 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 the transmission component 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, reducing structural damage caused by installation errors. The built-in return spring in the transmission component 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 a rendering of the quick assembly and disassembly structure of the lifting column and frame 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 component in its reset state in this utility model;

[0041] Figure 8 This is a schematic diagram of the locking assembly in the locked state in this utility model;

[0042] Figure 9 This is a schematic diagram showing the connection between the lifting column, motor mounting box, and frame assembly in this utility model;

[0043] Figure 10 for Figure 9 A magnified view of a section at point II.

[0044] In the diagram: 10-lifting column; 11-first sleeve; 12-second sleeve; 13-third sleeve; 1-fastening screw;

[0045] 20-Mounting box body; 21-Drive motor; 22-1-First limit pin; 22-2-Second limit pin; a1-First locking hole; 23-Mounting box cover;

[0046] 30-Locking assembly; 31-Lock tongue; 31-1-First mating point; 31-2-Second mating point; 31-3-First inclined top surface; 31-4-Second inclined top surface; 31-5-Spring mating point; 32-Guide component; 32-1-First guide groove; 33-Positioning component; 33-1-Second guide groove; 34-Reset spring; 35-Busset; 36-Rotation path groove; 37-Transmission base; 38-Transmission screw; 39-Lock tongue connector;

[0047] 40 - Frame assembly; 41 - Outer frame tube; 44 - Side plate connecting plate; a2 - Second lock hole; b - Mating guide end; c - Mating locking end;

[0048] 50-Side panel assembly; 51-Mating opening; 52-Limiting notch; 53-Mating surface; 54-Groove; 55-Side panel; 56-Supporting foot. Detailed Implementation

[0049] 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.

[0050] 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.

[0051] 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.

[0052] like Figures 1 to 10 As shown, this utility model has a quick assembly and disassembly structure for the lifting column 10 and the frame, including the lifting column 10, the motor mounting box, and the frame assembly 40.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] The motor mounting box body 20 is symmetrically provided with first lock holes a1.

[0057] The frame assembly 40 includes an outer frame tube 41, a locking end c is provided on the outer frame tube 41, and the edge of the outer frame tube 41 is connected to the locking end c through a 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 provided on the inner side of the outer frame tube 41.

[0058] The frame assembly 40 also includes a side plate connecting plate 44, which is connected end to end with the outer frame tube 41 to form a rectangular structure.

[0059] The quick-assembly structure also includes a side panel assembly 50, which includes a side panel 55, a mating surface 53, and a support foot 56. The side panel 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 panel 55. The support foot 56 is provided with a mating opening 51 and a limiting notch 52. The outer tube of the frame 41 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 side panel connecting plate 44. At this time, the mating opening 51 coincides with the mating locking end c.

[0060] The locking assembly 30 includes a locking tongue 31, a transmission assembly, and an elastic element. The locking tongue 31 is connected to the motor mounting box via the transmission assembly.

[0061] The transmission assembly includes a transmission base 37, a transmission screw 38, a bushing 35, and a locking tongue connector 39. The transmission screw 38 passes through the motor mounting box and is connected to the transmission base 37. The transmission base 37 is provided with at least one rotation path groove 36. The locking tongue connector 39 passes through the bushing 35 and is connected to the locking tongue 31. The bushing 35 slides along the rotation path groove 36. By rotating the transmission screw 38, the transmission base 37 can be rotated, and then the locking tongue 31 can be moved synchronously through the rotation path groove 36 and the bushing 35 to achieve extension and retraction.

[0062] The latch 31 includes a first inclined top surface 31-3 and a second inclined top surface 31-4, which are located on the side close to the first lock hole a1.

[0063] The elastic element is located between two opposing locking tongues 31.

[0064] The locking tongue 31 also includes a spring engagement point 31-5 for limiting the elastic element. The elastic element is a return spring 34.

[0065] The transmission assembly also includes a guide assembly for moving the latch 31 in a straight line. The guide assembly includes a guide member 32 and a positioning member 33 connected to the motor mounting box. The guide member 32 and the positioning member 33 are respectively provided with a first guide groove 32-1 and a second guide groove 33-1. The latch 31 is provided with a first mating point 31-1 and a second mating point 31-2. By moving the first mating point 31-1 and the second mating point 31-2 along the first guide groove 32-1 and the second guide groove 33-1 respectively, the latch 31 can move in a straight line.

[0066] The quick-assembly structure also includes a limiting component, which includes at least one limiting pin and at least one engaging locking end c that engages with the limiting pin. The limiting pin is located on the side of the motor mounting box, and the engaging locking end c is located on 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 engaging locking end c.

[0067] When the transmission assembly is rotated, the locking tongue 31 retracts synchronously and disengages from the corresponding second locking hole a2, realizing quick disassembly between the frame assembly 40 and the motor mounting box.

[0068] When the transmission assembly is released, the elastic element resets, causing the locking tongue 31 to pop out synchronously and pass through the first locking hole a1 before inserting into the corresponding second locking hole a2, thus realizing the quick installation between the frame assembly 40 and the motor mounting box.

[0069] This quick-release structure is simple, enabling 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 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 31 automatically springs into the second locking hole a2 on the outer tube 41 of the frame under the action of the return spring 34, ensuring a rigid connection without the risk of loosening. The sloping top surface causes the locking tongue 31 to automatically retract when it encounters resistance, avoiding damage to the components caused by forced installation. The synchronous structure of the locking tongue 31 and the transmission component ensures consistent locking action, improves safety, and extends the product's service life. 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 34 built into the transmission component does not affect the stability of the locking force during repeated assembly and disassembly.

[0070] The actual installation of this utility model includes the following steps:

[0071] 1. The locking assembly 30 is installed inside the mounting box 20. First, the transmission screw 38 is passed through the bottom of the mounting box 20. At this time, the locking tongues 31 on both sides pass through the first locking hole a1.

[0072] 2. Rotate clockwise to fix the locking component 30 to the bottom of the inner side of the mounting box 20, and cover the locking component 30 with the positioning part 33. At this time, the second guide groove 33-1 and the first mating point 31-1 are just mated and nested. Then, fix it to the side of the mounting box 20 with the fastening screw 1.

[0073] 3. When assembling the lifting column 10 and the frame assembly 40, first insert the side plate assembly 50 along the slot 54. At this time, the limiting notch 52 just locks it in place, and at the same time, the mating surface 53 is mated with the side plate connecting plate 44. At this time, the mating opening 51 coincides with the mating locking end c.

[0074] 4. When the lifting column 10 is placed into the frame assembly 40, the first limiting pin 22-1 contacts the mating guide end b and automatically slides 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 31-3 and the second inclined top surface 31-4 of the locking tongue 31 contact the outer tube 41 of the frame and undergo lateral displacement. The locking tongue 31 retracts, and the return spring 34 is clamped and stored. Due to the existence of the spring mating point 31-5, it can be ensured that the spring will not displace when clamped.

[0075] 5. When the second limiting pin 22-2 contacts the locking end c, the locking tongue 31 is aligned with the second locking hole a2. At this time, the locking tongue 31 is no longer blocked by the outer tube 41 of the frame, and the return spring 34 releases its elastic force to push the locking tongue 31 out.

[0076] 6. Because the first mating point 31-1 is nested with the second guide groove 33-1, and the second mating point 31-2 is nested with the first guide groove 32-1, the lateral movement path of the locking tongue 31 is completely restricted.

[0077] 7. The transmission base 37 is connected to the lock tongue 31 through the locking tongue connector 39 from bottom to top. A bushing 35 is provided outside the locking tongue connector 39 and inside the rotation path groove 36 to improve the flexibility during rotation. When the two lock tongues 31 are reset or tightened, the transmission base 37 rotates around the center of the transmission screw 38 to ensure the synchronicity of the lock tongues 31 during operation.

[0078] 8. When disassembling the lifting column 10 and the frame assembly 40, turn the transmission screw 38 clockwise and the locking tongue 31 will retract 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 31 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, 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 within the motor mounting box. The locking assembly includes a locking tongue, a transmission assembly, and an elastic element. The locking tongue is connected to the motor mounting box via the transmission assembly, and the elastic element is disposed between two opposing locking tongues. When the transmission assembly is rotated, the locking tongue retracts synchronously and disengages from the corresponding second locking hole. Enables quick disassembly between the frame assembly and the motor mounting box; When the transmission assembly is released, the elastic element resets, causing the locking tongue to pop out synchronously and pass through the first locking hole before inserting into the corresponding second locking hole, thereby achieving rapid installation between the frame assembly and the motor mounting box.

2. The lift column and frame quick release structure of claim 1, wherein: The transmission assembly includes a transmission base, a transmission screw, a bushing, and a locking tongue connector. The transmission screw passes through the motor mounting box and is connected to the transmission base. The transmission base is provided with at least one rotation path groove. The locking tongue connector passes through the bushing and is connected to the locking tongue. The bushing slides along the rotation path groove.

3. The lift column and frame quick release structure of claim 1, wherein: 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.

4. The lift column and frame quick release structure of claim 1, wherein: The locking tongue also includes a spring engagement point for limiting the elastic element.

5. The quick assembly / disassembly structure of the lifting column and frame according to claim 4, characterized in that: The elastic element is a return spring.

6. The quick assembly / disassembly structure of the lifting column and frame according to claim 1, characterized in that: It also includes a guide assembly for moving the latch in a straight line. The guide assembly includes a guide member and a positioning member connected to the motor mounting box. The guide member and the positioning member are respectively provided with a first guide groove and a second guide groove. The latch is provided with a first mating point and a second mating point. The latch moves in a straight line by moving along the first guide groove and the second guide groove through the first mating point and the second mating point, respectively.

7. The quick-assembly and disassembly structure of the lifting column and frame according to any one of claims 1 to 6, 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.

8. The quick assembly / disassembly structure of the lifting column and frame according to claim 7, characterized in that: The frame assembly includes an outer frame tube, the locking end is located on the outer frame tube, and the edge of the outer frame tube is connected to the locking end via a 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.

9. The quick-assembly and disassembly structure of the lifting column and frame according to claim 8, characterized in that: The frame assembly also includes a side plate connecting plate, which is connected end to end to the outer tube of the frame to form a rectangular structure.

10. The quick-assembly and disassembly structure of the lifting column and frame 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