Lifting table capable of being quickly disassembled and assembled

Abstract

The utility model discloses a lifting table capable of being quickly assembled and disassembled, which comprises a table board, and a cross beam is arranged below the table board and detachably connected with table legs. Limiting pieces and locking pieces which protrude outwards are arranged on the installation portions of the end portions of the table legs, and limiting grooves and locking holes are correspondingly formed in the two sides of the containing space of the cross beam. The upper end of the entering section is communicated with the limiting section, the entering section inclines towards the center from bottom to top, and the limiting section extends towards the center from the edge of the table plate. During assembly, the mounting part obliquely enters the accommodating space, the limiting piece firstly enters the entering section, the table legs are rotated to be horizontal after reaching the limiting section, and the rest part of the mounting part enters. In the process, the locking piece firstly retracts and then extends out, and is clamped when being aligned with the locking hole, so that assembling and locking are completed. The whole-process operation is simple and rapid, a single user can complete the operation, screws are not needed, the assembling experience is effectively optimized, and convenience and stability are both achieved.

Description

Technical Field

[0001] This utility model relates to the field of height-adjustable desks, and in particular to a height-adjustable desk that can be quickly assembled and disassembled. Background Technology

[0002] In modern office and home life, height-adjustable desks are becoming increasingly popular because they can meet different height requirements and improve user comfort and health. However, there are currently many problems with the installation and disassembly of height-adjustable desks.

[0003] Traditional height-adjustable desks typically use screws to connect the legs and crossbeams. This method requires a significant amount of time to tighten the screws during installation and demands a high level of skill from the installer. Improper handling can easily strip the screws, affecting the desk's stability. Disassembly is also tedious, as unscrewing the screws is cumbersome, and screws are easily lost. Furthermore, during transportation, the screw-fixed legs and crossbeams cannot be easily separated, taking up considerable space and increasing shipping costs.

[0004] While some new height-adjustable desks attempt to simplify installation, their structural designs are flawed. For example, the use of snap-fit ​​or slot structures makes precise alignment difficult during installation, resulting in noticeable wobbling of the legs and poor stability, thus failing to meet daily usage needs.

[0005] In view of the above, the market urgently needs a height-adjustable desk that can be quickly and easily assembled and disassembled. Summary of the Invention

[0006] To address the aforementioned technical problems, this utility model discloses a quick-assembly and disassembly adjustable table, comprising a tabletop with a crossbeam beneath it, the crossbeam being detachably connected to the table legs. The table leg end mounting portion is equipped with outwardly protruding limiting and locking components. The crossbeam's accommodating space has corresponding limiting grooves and locking holes on both sides. The limiting groove includes an entry section with a lower opening and an upper end communicating with a limiting section, tilting upwards towards the center. The limiting section extends from the edge of the tabletop towards the center. During assembly, the mounting portion tilts into the accommodating space, the limiting component enters the entry section first, and after reaching the limiting section, the table leg is rotated to make it horizontal, allowing the remaining part of the mounting portion to enter. During this process, the locking component first retracts and then extends, locking into place when aligned with the locking hole, completing the assembly and locking process. The entire operation is simple and quick, requiring only one user, and requires no screws, effectively optimizing the assembly experience while combining convenience and stability. It requires no complex tools or professional skills, ensures stability after installation, and allows for flexible disassembly during transportation, reducing costs.

[0007] The technical solution of this utility model is implemented as follows:

[0008] A quick-assembly and disassembly adjustable table includes a tabletop, a crossbeam beneath the tabletop, and table legs detachably connected to the crossbeam. Each table leg includes a mounting portion at its end, detachably connected to the crossbeam. The mounting portion has a limiting member and a locking member, both protruding outwards from the mounting portion. The crossbeam has a receiving space for accommodating the mounting portion. Limiting grooves and locking holes are provided on both sides of the receiving space. When the table legs are mounted on the crossbeam, the limiting member is positioned in the limiting groove, and the locking member is engaged in the locking hole. The limiting groove includes an entry section and a limiting section. The lower end of the entry section is open, and its upper end communicates with the limiting section. The entry section slopes upwards towards the center of the tabletop, and the limiting section extends from the edge of the tabletop towards the center. The locking member is telescopically mounted on the mounting portion. The locking member is configured such that after the limiting member enters the limiting section, the locking member retracts into the mounting portion to enter the receiving space and extends outwards to engage in the locking hole when aligned with it.

[0009] During assembly, the mounting part tilts into the receiving space, and the limiting member first enters the limiting groove of the entry section. After the limiting member reaches the limiting section, the table leg is rotated to make the mounting part gradually horizontal, allowing the rest of the mounting part to also enter the receiving space. During this process, the protruding locking member first retracts inward, allowing the mounting part and locking member to smoothly enter the receiving space. After aligning with the locking hole, it extends outward and engages in the locking hole to complete the assembly and locking of the table leg and the crossbeam. The operation is simple and quick, and one user can easily complete the assembly. Moreover, there is no need to use screws for locking and fixing, which optimizes the user's assembly experience.

[0010] Preferably, the crossbeam is also equipped with a limiting shaft, located beside the accommodating space in the left-right direction, closer to the center of the tabletop than the accommodating space. A fastener is detachably connected to the limiting shaft, including a clamping protrusion and a rotating groove. The rotating groove rotatably engages with the limiting shaft, and the clamping protrusion is configured to rotate the fastener so that it abuts against the mounting part. The clamping protrusion presses against the mounting part, keeping it stable on the crossbeam and preventing table legs from shaking. Since the locking element and locking hole cannot achieve a perfectly tight fit, the table legs may still vibrate slightly after installation. Therefore, the clamping protrusion presses the mounting part to maintain assembly stability. Furthermore, because the clamping protrusion ensures stability, the precision requirements of the locking element, locking hole, limiting element, and limiting groove can be minimized, thereby significantly reducing production costs and improving manufacturer efficiency.

[0011] Preferably, the locking hole is an oblong hole. As mentioned above, an oblong hole is sufficient for locking, so that even if the locking part has some room for movement in the oblong hole, it can still be pressed and locked by the fastener.

[0012] Preferably, the fastener has a handle, which also abuts against the mounting part when the clamping protrusion abuts against the mounting part. The handle facilitates the user's operation of the fastener, and the user can confirm that the fastener has been installed when the handle abuts against the mounting part.

[0013] Preferably, the mounting part is a motor box, which contains a mounting base. The locking element is inserted into the mounting base and the motor box. The mounting base contains a spring configured to provide elastic force to the locking element as it extends outward from the motor box. This simply achieves an elastically retractable locking element.

[0014] Preferably, the mounting base has a clearance groove, on which a spring seat is engaged. The spring seat protrudes from the mounting base through the clearance groove, and both ends of the spring abut against the spring seat and the locking element. This saves on the mold opening cost of the mounting base and improves the manufacturer's efficiency.

[0015] Preferably, a limiting pin is provided at the end of the locking member away from the spring, and the limiting pin is configured to prevent the locking member from dislodging from the motor housing. This ensures the normal use of the locking member.

[0016] Preferably, the limiting member and the locking member are located at the left and right ends of the mounting part, respectively, and in the left-right direction, the limiting member is closer to the center of the tabletop than the locking member. After inserting the limiting member into the limiting groove, rotating the table leg will lock the locking member and the crossbeam, making the operation simple and convenient.

[0017] Preferably, the limiting member is cylindrical, with a frustum-shaped limiting portion at its end, the diameter of which is larger than the diameter of the limiting groove. The limiting portion can form a limiting position with the crossbeam, preventing the motor box from detaching in the left-right direction.

[0018] The design starting point, concept, and beneficial effects of this utility model, which adopts the above technical solution, are as follows:

[0019] 1. During assembly, the mounting part enters the receiving space at an angle, and the limiting member first enters the limiting groove of the entry section. After the limiting member reaches the limiting section, the table leg is rotated to make the mounting part gradually horizontal, allowing the rest of the mounting part to also enter the receiving space. During this process, the protruding locking member first retracts inward, allowing the mounting part and locking member to smoothly enter the receiving space. After aligning with the locking hole, it extends outward and engages in the locking hole to complete the assembly and locking of the table leg and the crossbeam. The operation is simple and quick, and one user can easily complete the assembly. Moreover, there is no need to use screws for locking and fixing, which optimizes the user's assembly experience.

[0020] 2. The clamping protrusion presses against the mounting part, keeping the mounting part stable on the crossbeam and preventing the table legs from shaking. Since the locking parts and locking holes cannot achieve a perfectly tight fit, the table legs may still vibrate slightly after installation. Therefore, the clamping protrusion presses the mounting part firmly to maintain assembly stability. Furthermore, because the clamping protrusion ensures stability, the precision requirements of the locking parts, locking holes, limiting parts, and limiting grooves can be minimized, thereby significantly reducing production costs and improving manufacturer efficiency. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the height-adjustable table in an embodiment of the present invention. Figure 1 ;

[0022] Figure 2 This is a three-dimensional structural diagram of the height-adjustable table in an embodiment of the present invention. Figure 2 ;

[0023] Figure 3 This is a three-dimensional structural diagram of the upper limit groove and locking hole of the crossbeam in an embodiment of the present invention;

[0024] Figure 4 This is a three-dimensional structural diagram of the upper limit member and locking member of the mounting part in an embodiment of the present invention;

[0025] Figure 5 This is a three-dimensional structural diagram of the mounting base being disposed inside the motor box in an embodiment of the present invention;

[0026] Figure 6 This is a three-dimensional structural diagram of the present invention in which the locking element is disposed on the mounting base in an embodiment;

[0027] Figure 7 This is a three-dimensional structural diagram of the fastener set on the limiting shaft in an embodiment of the present invention.

[0028] The attached figures are labeled as follows: Tabletop 1; Crossbeam 2; Accommodation space 21; Table leg 3; Mounting part / motor box 31; Column 32; Limiting part 4; Limiting part 41; Locking part 5; Limiting groove 6; Entering section 61; Limiting section 62; Locking hole 7; Mounting seat 8; Clearance groove 81; Spring seat 9; Spring 10; Limiting pin 11; Limiting shaft 12; Fastener 13; Pressing protrusion 131; Rotary groove 132; Handle 133. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0031] In the description of this utility model, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] The specific embodiments of this utility model are as follows:

[0033] like Figure 1-4 As shown, this utility model provides a quick-assembly and disassembly adjustable table, including a tabletop 1, a crossbeam 2 below the tabletop 1, and table legs 3 detachably connected to the crossbeam 2. Each table leg 3 includes a mounting portion 31 at its end, which is detachably connected to the crossbeam 2. The mounting portion 31 is provided with a limiting member 4 and a locking member 5, both protruding outwards from the mounting portion 31. The crossbeam 2 has an accommodating space 21 for receiving the mounting portion 31. Limiting grooves 6 and locking holes 7 are provided on both sides of the accommodating space 21. When the table legs 3 are installed on the crossbeam 2, the limiting member 4 is positioned in the limiting groove 6, and the locking member 5 is engaged in the locking hole 7. The limiting groove 6 includes an entry section 61 and a limiting section 62. The lower end of the entry section 61 is open, and its upper end communicates with the limiting section 62. The entry section 61 slopes upwards towards the center of the tabletop 1, and the limiting section 62 extends from the edge of the tabletop 1 towards the center. The locking member 5 is telescopically mounted on the mounting part. The locking member 5 is configured such that after the limiting member 4 enters the limiting section 62, the locking member 5 retracts into the mounting part 31 to enter the receiving space 21 and extends outward to engage with the locking hole 7 when aligned with the locking hole 7.

[0034] During assembly, the mounting part 31 tilts into the receiving space 21, and the limiting member 4 first enters the limiting groove 6 from the entry section 61. When the limiting member 4 reaches the limiting section 62, the table leg 3 is rotated to make the mounting part 31 gradually horizontal, allowing the rest of the mounting part 31 to also enter the receiving space 21. During this process, the outwardly protruding locking member 5 first retracts inward, allowing the mounting part 31 and the locking member 5 to smoothly enter the receiving space 21. After aligning with the locking hole 7, it extends outward and engages in the locking hole 7 to complete the assembly and locking of the table leg 3 and the crossbeam 2. The operation is simple and quick, and one user can easily complete the assembly. Moreover, there is no need to use screws for locking and fixing, which optimizes the user's assembly experience.

[0035] Specifically, such as Figure 4 , 5As shown, the mounting part 31 is a motor box 31, located at the upper end of the table leg 3, with a column 32 connected below it. The limiting member 4 on the motor box 31 is a bolt, cylindrical in shape, with a frustum-shaped limiting part 41 at its end. The diameter of the limiting part 41 is larger than the diameter of the limiting groove 6, allowing it to limit the movement of the crossbeam 2 and prevent the motor box 31 from detaching in the left-right direction. The locking member 5 is a pin, with both locking members 5 and limiting members 4 located on the front and rear end faces of the motor box 31. The limiting members 4 and locking members 5 are located at the left and right ends of the motor box 31, respectively, with the limiting member 4 closer to the center of the tabletop 1 in the left-right direction than the locking member 5. After inserting the limiting member 4 into the limiting groove 6, rotating the table leg 3 locks the locking member 5 to the crossbeam 2, making the operation simple and convenient.

[0036] The locking element 5 achieves elastic extension and retraction in the following way: Figure 5 , 6 As shown, the motor housing 31 has a sheet metal mounting base 8 inside. The bent sheet metal mounting base 8 is directly installed inside the motor housing 31. Two locking pieces 5 are simultaneously inserted into the mounting base 8 and the motor housing 31. The mounting base 8 has a clearance groove 81, on which a spring seat 9 is engaged. The spring seat 9 protrudes from the clearance groove 81 and is located between the two locking pieces 5. The mounting base 8 has a spring 10 inside. The spring 10 is configured to provide elastic force to the locking piece 5 extending outward toward the motor housing 31. Specifically, both ends of the spring 10 abut against the spring seat 9 and the locking piece 5, thus simply realizing the elastic extension and retraction of the locking piece 5. The purpose of disassembling and connecting the spring seat 9 and the mounting base 8 is to save on the mold opening cost of the mounting base 8 and improve the manufacturer's efficiency. The spring seat 9 and the mounting base 8 are engaged by an elastic snap. A limit pin 11 is also inserted at the end of the locking piece 5 away from the spring 10. The limit pin 11 is configured to prevent the locking piece 5 from coming out of the motor housing 31, thus ensuring the normal use of the locking piece 5.

[0037] To be more specific, such as Figure 2 , 3 As shown in Figures 7 and 8, a limiting shaft 12 is also provided on the crossbeam 2. The limiting shaft 12 is located beside the accommodating space 21 and in the left-right direction. The limiting shaft 12 is closer to the center of the tabletop 1 than the accommodating space 21. A fastener 13 is detachably connected to the limiting shaft 12. The fastener 13 includes a pressing protrusion 131 and a rotating groove 132. The rotating groove 132 is rotatably engaged with the limiting shaft 12. The pressing protrusion 131 is configured to rotate the fastener 13 so that the pressing protrusion 131 abuts against the motor box 31. The fastener 13 also has a handle 133. When the pressing protrusion 131 abuts against the motor box 31, the handle 133 also abuts against the motor box 31. The handle 133 facilitates the user's operation of the fastener 13, and when the handle 133 abuts against the motor box 31, it can be confirmed that the fastener 13 has been installed.

[0038] The clamping protrusion 131 presses against the motor housing 31, keeping the motor housing 31 stable on the crossbeam 2 and preventing the table leg 3 from shaking. Since the locking member 5 and the locking hole 7 cannot achieve a perfectly tight fit, the table leg 3 may still experience slight vibration after installation. Therefore, the clamping protrusion 131 presses the motor housing 31 to maintain assembly stability. Furthermore, because the clamping protrusion 131 ensures stability, the precision requirements of the locking member 5, locking hole 7, limiting member 4, and limiting groove 6 can be minimized, thereby significantly reducing production costs and improving manufacturer efficiency. Therefore, as mentioned above, the locking hole 7 can be an oblong hole; even if the locking member 5 has some room for movement within the oblong hole, it can still be clamped and locked by the fastener 13.

Claims

1. A quick-release sit-stand desk, characterized by: The table leg includes an installation portion at the end thereof, and the installation portion is detachably connected with the cross beam; the installation portion is provided with a limiting piece and a locking piece, and the limiting piece and the locking piece are outwardly protruding from the installation portion; the cross beam is provided with an accommodating space for accommodating the installation portion; the cross beam on both sides of the accommodating space is provided with a limiting groove and a locking hole; when the table leg is installed on the cross beam, the limiting piece is arranged in the limiting groove, and the locking piece is clamped in the locking hole; the limiting groove includes an entering section and a limiting section; the lower end of the entering section is open, and the upper end thereof is communicated with the limiting section; the entering section is inclined from the lower end to the upper end toward the center of the table plate; the limiting section extends from the edge of the table plate to the center; the locking piece is arranged on the installation portion in an extendible and retractable manner; after the limiting piece enters the limiting section, the locking piece is retracted into the installation portion to enter the accommodating space and is extended outward to be clamped in the locking hole when being aligned with the locking hole.

2. The quick connect / disconnect sit-to-stand desk of claim 1, wherein: The cross beam is further provided with a limiting shaft; the limiting shaft is located beside the accommodating space and in the left-right direction; the limiting shaft is closer to the center of the table plate than the accommodating space; the limiting shaft is detachably connected with a tight fitting piece; the tight fitting piece includes a pressing convex portion and a rotating groove; the rotating groove is rotationally matched with the limiting shaft; the pressing convex portion is configured to rotate the tight fitting piece so that the pressing convex portion is abutted on the installation portion.

3. The quick disconnect lift table of claim 2, wherein: The locking hole is a waist-shaped hole.

4. The quick disconnect lift table of claim 2, wherein: The tight fitting piece has a handle; when the pressing convex portion is abutted on the installation portion, the handle is also abutted on the installation portion.

5. The quick disconnect lift table of claim 1, wherein: The installation portion is a motor box; the motor box is provided with a mounting seat; the locking piece is inserted on the mounting seat and the motor box; the mounting seat is provided with a spring; the spring is configured to give the locking piece an elastic force extending outward from the motor box.

6. The quick disconnect lift table of claim 5, wherein: The mounting seat is provided with an avoiding groove; a spring seat is clamped on the avoiding groove; the spring seat protrudes from the mounting seat; the both ends of the spring are abutted on the spring seat and the locking piece.

7. The quick disconnect lift table of claim 5, wherein: The end of the locking piece away from the spring is provided with a limiting pin; the limiting pin is configured to prevent the locking piece from being pulled out of the motor box.

8. The quick disconnect lift table of claim 1, wherein: The limiting piece and the locking piece are respectively located at the left and right ends of the installation portion and in the left-right direction; the limiting piece is closer to the center of the table plate than the locking piece.

9. The quick disconnect lift table of claim 1, wherein: The limiting piece is columnar; the end thereof has a circular truncated cone-shaped limiting portion; the diameter of the limiting portion is greater than the groove diameter of the limiting groove.

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