Table frame for quickly detaching table legs

Abstract

The utility model provides a table frame for quickly detaching table legs. The table frame comprises two cross beams and a locking assembly arranged between the two cross beams. And an accommodating space for mounting the upright post is formed between the end parts of the two cross beams. The locking assembly comprises an operating connecting rod and an acting connecting rod, the operating connecting rod is rotationally matched with the cross beam, the acting connecting rod is rotationally matched with the cross beam in a sliding mode and rotationally connected with the cross beam, and the acting connecting rod is closer to the containing space. The operating part of the operating connecting rod can be operated by a user, and the acting part of the acting connecting rod abuts against the stand column. The locking assembly has an unlocking state and a locking state, in the unlocking state, the operation part protrudes out of the cross beams in the vertical direction, when the locking assembly is switched to the locking state, the operation connecting rod is rotated to enable the operation part to enter the position between the two cross beams, the operation connecting rod drives the acting connecting rod to rotate and move towards the containing space, and the acting part enters the containing space accordingly.

Description

Technical Field

[0001] This utility model relates to the field of height-adjustable desk technology, and in particular to a desk frame for quick-release of desk legs. Background Technology

[0002] In the modern furniture market, height-adjustable desks are becoming increasingly popular, and the design and usage requirements for them are constantly evolving. Traditional height-adjustable desks, especially those involving the legs, typically use screws to connect the legs to the frame. While this method ensures stability in the connection, it has revealed numerous problems in practical applications.

[0003] In the packaging and transportation of products, table frames and legs often need to be packaged separately. This not only reduces the amount of packaging materials used but also optimizes storage space, thus lowering transportation costs. However, for consumers, the cumbersome installation process is a major challenge. Installing screws requires specialized tools and demands certain installation skills and patience from the consumer. Many consumers, lacking installation experience, easily encounter problems such as loose screws or unstable table legs during installation. This not only affects the user experience but may also lead to consumer dissatisfaction, ultimately impacting the product's market reputation and sales.

[0004] With the fast pace of modern life, consumers are demanding greater convenience and ease of installation from furniture products. They want to be able to assemble furniture quickly and easily without relying on excessive tools or complicated procedures. Therefore, the market urgently needs a new type of table frame structure that simplifies the table leg assembly process while maintaining low packaging and transportation costs. Summary of the Invention

[0005] To address the aforementioned technical problems, this utility model provides a table frame for quick-release table legs, comprising two spaced and parallel crossbeams and a locking assembly disposed between them. A receiving space for mounting uprights is formed between the ends of the two crossbeams. The locking assembly includes an operating link and an actuating link. The operating link is rotatably engaged with the crossbeams, while the actuating link is rotatably and slidably engaged with the crossbeams; the two are rotatably connected, with the actuating link closer to the receiving space. The operating part of the operating link is operable by the user, and the actuating part of the actuating link abuts against the upright. The locking assembly has two states: unlocked and locked. In the unlocked state, the operating part protrudes vertically from the crossbeams. When switched to the locked state, rotating the operating link causes the operating part to enter between the two crossbeams. The operating link then drives the actuating link to rotate and move towards the receiving space, with the actuating part subsequently entering the receiving space. This table frame uses a simple linkage structure to lock the uprights in place. After placing the upright in the unlocked state, pressing down the linkage will push the upright to the installation position and fix it in place. The operation is convenient and quick, and no screws are required for installation. This not only ensures low cost for packaging and transportation, but also greatly simplifies the installation of the height-adjustable table for consumers, eliminating their concerns about installation and helping to improve the product's market benefits.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A table frame for quick-release table legs includes two parallel crossbeams spaced apart and a locking assembly disposed between the two crossbeams; accommodating spaces for mounting uprights are formed at the ends of the two crossbeams; the locking assembly includes an operating link and an actuating link, the operating link being rotatably engaged with the two crossbeams, and the actuating link being rotatably and slidably engaged with the two crossbeams, the operating link and the actuating link being rotatably connected to each other, and the actuating link being closer to the accommodating space than the operating link; the operating link includes an operating part, and the actuating link includes an actuating part, the operating part being configured for user operation, and the actuating part being configured to abut against the upright; the locking assembly has an unlocked state and a locked state, in the unlocked state, the operating part protruding vertically from the crossbeam; when switching from the unlocked state to the locked state, rotating the operating link causes the operating part to enter between the two crossbeams, and the operating link drives the actuating link to rotate and move toward the accommodating space, so that the actuating part enters the accommodating space.

[0008] This table frame uses a simple linkage structure to lock the uprights in place. In the unlocked state, after placing the upright in the receiving space, the operating linkage is pressed down between the two crossbeams. During this process, the actuating part of the linkage pushes the upright to the installation position and holds it there. The operation is convenient and quick, requiring no screws. While ensuring low packaging and transportation costs, it greatly simplifies the installation difficulty for consumers after receiving the height-adjustable table, eliminates their concerns about installation, and improves market efficiency. In the unlocked state, the operating part protrudes vertically from the two crossbeams for easy operation by the user.

[0009] Preferably, the actuating part is located at the end of the actuating link closest to the receiving space, and the profile of the end of the actuating part closest to the receiving space is curved. This is to accommodate the rotation and sliding of the actuating link. The actuating link rotates under the drive of the operating link and also slides closer to the receiving space. If the column is installed in the receiving space at this time, the actuating part will contact the motor box of the column. The curved shape of the actuating part ensures that even if the actuating part rotates with the actuating link, it can always maintain contact and abutment with the column, ensuring that the locking is successfully completed.

[0010] Preferably, the width of the actuating part gradually increases in the vertical direction from the farthest point from the accommodating space. This is to ensure the integrity of the action of the curved end on the column, because the actuating part is rotatable. If the size of the curved end is too small, it cannot maintain contact with the column throughout the rotation process, which will result in the column being unstable after installation.

[0011] Preferably, the operating linkage also includes a rotating part and an adaptive part. The rotating part is rotatably connected to the crossbeam, and the adaptive part is connected to the rotating part. The operating part is connected to the middle of the adaptive part. The adaptive part is vertically disposed between the two crossbeams and is perpendicular to the operating part. The adaptive part is configured to generate elastic modulus deformation in response to external forces. The function of the adaptive part is to provide an adaptive distance when locking the column; in other words, it enables a tight fit between the operating part and the column. Specifically, when the operating part contacts the column and pushes the column into place, the connection between the column and the crossbeam is not yet stable. The operating part must continue to press against the column. At this time, the elastic modulus deformation of the adaptive part is required to achieve this and provide a force for the operating part to press the column, so that the column maintains a stable connection with the crossbeam.

[0012] Preferably, the operating part has a protrusion, and the protrusion has a limiting shaft. The limiting shaft is configured such that, in the locked state, it abuts against the operating link and prevents the operating link from continuing to rotate. This prevents the operating part from disengaging from the column and releasing the lock due to excessive rotation during installation.

[0013] Preferably, both crossbeams are provided with sliding grooves that extend along the length of the crossbeams; there are two actuating parts, each with a sliding pivot, which is disposed in the sliding groove and allows the actuating part to be slidably and rotatably connected to the crossbeam. This achieves the sliding and rotatable arrangement of the actuating link on the crossbeam.

[0014] Preferably, the operating link is roughly T-shaped, and the action link is roughly Y-shaped. The action link also includes two spaced-apart connecting parts and two branching support arms. The two ends of the support arms are connected to the connecting parts and the action parts, respectively. The operating part is located between the two connecting parts and is rotatably connected. In the locked state, the operating part is simultaneously located between the two connecting parts and the two support arms. The adaptive part and the operating part form a T-shape, and there are two rotating parts, located at both ends of the adaptive part and protruding from it. The connecting part and the support arm form a Y-shape, and there are two action parts, located on the two support arms and protruding from them. The action link actually includes two symmetrically arranged connecting rods. One end of each symmetrical connecting rod is slidably and rotatably connected to the crossbeam, and the other end is rotatably connected to the operating link. Most importantly, after installation, the locking components do not protrude from the crossbeam; the locking components remain entirely between the two crossbeams. This is more aesthetically pleasing and less obtrusive, and also safer, preventing injury.

[0015] The design starting point, concept, and beneficial effects of this utility model, which adopts the above technical solution, are as follows:

[0016] This table frame uses a simple linkage structure to lock the uprights in place. In the unlocked state, after placing the upright in the receiving space, the operating linkage is pressed down between the two crossbeams. During this process, the action part of the linkage pushes the upright to the installation position and holds it there. The operation is convenient and quick, requiring no screws. While ensuring low packaging and transportation costs, it greatly simplifies the installation difficulty for consumers after receiving the height-adjustable table, eliminates consumers' concerns about installation, and improves market efficiency.

[0017] The function of the adaptive part is to provide an adaptive distance when locking the column. In other words, it can achieve a tight fit between the actuating part and the column. Specifically, when the actuating part contacts the column and pushes the column into place, the connection between the column and the crossbeam is not stable. The actuating part must continue to press against the column. At this time, the elastic modulus deformation of the adaptive part is required to achieve this and provide a force for the actuating part to press the column, so that the column maintains a stable connection with the crossbeam.

[0018] The adaptive section and the operating section form a T-shape. There are two rotating sections, located at both ends of the adaptive section and protruding from it. The connecting section and the support arm form a Y-shape. There are two actuating sections, located on the two support arms and protruding from them. The actuating linkage actually includes two symmetrically arranged connecting rods. One end of each connecting rod is slidably and rotatably connected to the crossbeam, and the other end is rotatably connected to the operating linkage. Most importantly, after installation, the locking components do not protrude from the crossbeams; they remain entirely between the two crossbeams. This is both more aesthetically pleasing and safer, preventing injury. Attached Figure Description

[0019] Figure 1This is a three-dimensional structural diagram of the table frame in the unlocked state in Embodiment 1 of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the actuating part pushing the column during the process of switching to the locked state in Embodiment 1 of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the column installed on the table frame in the locked state in Embodiment 1 of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the table frame in the locked state in Embodiment 1 of this utility model;

[0023] Figure 5 This is a top view of the table frame in the locked state in Embodiment 1 of this utility model;

[0024] Figure 6 This is a cross-sectional view of the table frame in the locked state in Embodiment 1 of this utility model;

[0025] Figure 7 This is a three-dimensional structural diagram of the column in Embodiment 1 of this utility model;

[0026] Figure 8 This is a top view of the column in Embodiment 1 of this utility model;

[0027] Figure 9 This is a three-dimensional structural diagram of the column installed on the table frame in the locked state in Embodiment 2 of this utility model;

[0028] Figure 10 This is a cross-sectional view of the table frame in the locked state in Embodiment 2 of this utility model.

[0029] The reference numerals in the attached drawings are as follows: crossbeam 1; accommodating space 11; operating linkage 2; operating part 21; protrusion 211; limiting shaft 212; rotating part 22; adaptive part 23; space 24; action linkage 3; action part 31; connecting part 32; support arm 33; column 4; motor box 41; limiting member 5; auxiliary limiting member 6; limiting part 61; main body part 62; mounting groove 7; entry end 71; mounting end 72; sliding groove 8; auxiliary limiting groove 9; clearance opening 91; sliding shaft 10. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] 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.

[0033] The specific embodiments of this utility model are as follows: Example

[0034] like Figure 1-4 As shown, this utility model provides a quick-release table frame, including two parallel and spaced-apart crossbeams 1 and a locking assembly disposed between the two crossbeams 1. At the ends of the two crossbeams 1, a receiving space 11 is formed for mounting a column 4. The locking assembly includes an operating link 2 and an action link 3. The operating link 2 is rotatably engaged with the two crossbeams 1, and the action link 3 is rotatably and slidably engaged with the two crossbeams 1. The operating link 2 and the action link 3 are rotatably connected to each other, and the action link 3 is closer to the receiving space 11 than the operating link 2. The operating link 2 includes an operating part 21, and the action link 3 includes an action part 31. The operating part 21 is configured for user operation, and the action part 31 is configured to abut against the column 4. The locking assembly has an unlocked state and a locked state. In the unlocked state, the operating part 21 protrudes from the crossbeam 1 in the vertical direction. When switching from the unlocked state to the locked state, the operating linkage 2 is rotated to make the operating part 21 enter between the two crossbeams 1. The operating linkage 2 drives the actuating linkage 3 to rotate and move toward the receiving space 11 so that the actuating part 31 enters the receiving space 11.

[0035] The table frame uses a simple linkage structure to lock the upright 4 in place. In the unlocked state, after placing the upright 4 in the accommodating space 11, the operating linkage 2 is pressed down between the two crossbeams 1. During this process, the action part 31 of the action linkage 3 will push the upright 4 to the installation position and keep it in the installation position. The operation is convenient and quick, and no screws are required. While ensuring low packaging and transportation costs, it greatly simplifies the installation difficulty for consumers after receiving the height-adjustable table, eliminates consumers' concerns about installation, and improves market efficiency.

[0036] This table frame is used in a height-adjustable table, such as Figure 1-3As shown in Figures 7 and 8, the height-adjustable desk includes a column 4 and a table frame as described above. The column 4 includes a motor box 41, which is located at the upper end of the column 4. The motor box 41 is provided with a limiting member 5. Both crossbeams 1 are provided with mounting slots 7, which include an entry end 71 and a mounting end 72. When the locking component is in the unlocked state, the motor box 41 is placed in the installation space, and the limiting member 5 enters the mounting slot 7 from the entry end 71. When the locking component switches from the unlocked state to the locked state, the actuating part 31 pushes the motor box 41, causing the limiting member 5 to enter the mounting end 72 and hold the limiting member 5 at the mounting end 72. The column 4 is installed under the action of the limiting member 5 and the mounting slot 7, and the column 4 is kept in a stable installation state under the action of the locking component.

[0037] Specifically, such as Figure 1 , 4 As shown in Figure 6, the operating link 2 is roughly T-shaped, and the action link 3 is roughly Y-shaped. The action link 3 also includes two spaced-apart connecting parts 32 and two branching support arms 33. The two ends of the support arms 33 are connected to the connecting parts 32 and the action parts 31, respectively. The operating part 21 is located between the two connecting parts 32 and is rotatably connected. In the locked state, the operating part 21 is simultaneously located between the two connecting parts 32 and the two support arms 33. In this embodiment, the operating link 2 and the action link 3 are actually composed of two symmetrically arranged connecting rods. The operating link 2 composed of two connecting rods is roughly T-shaped; the action link 3 composed of two connecting rods is roughly V-shaped. One end of the two symmetrically arranged connecting rods is slidably and rotatably connected to the crossbeam 1, and the other end is rotatably connected to the operating link 2. Most importantly, in the unlocked state, the operating part 21 will protrude downwards from the crossbeam 1. When the upright 4 is installed, the table frame is reversed, which makes it convenient for the user to press down the operating part 21. After the installation is completed, the locking components will not protrude from the crossbeam 1. The locking components are all kept between the two crossbeams 1, which is more aesthetically pleasing and not obtrusive, and also safer and will not hurt people.

[0038] Furthermore, the operating linkage 2 also includes a rotating part 22 and an adaptive part 23. The rotating part 22 is rotatably connected to the crossbeam 1, the adaptive part 23 is connected to the rotating part 22, and the operating part 21 is connected to the middle of the adaptive part 23. The adaptive part 23 is vertically disposed between the two crossbeams 1 and is perpendicular to the operating part 21. The adaptive part 23 is configured to generate elastic modulus deformation in response to external forces. Combining the above shapes, the adaptive part 23 and the operating part 21 form a T-shape. There are two rotating parts 22, located at both ends of the adaptive part 23 and protruding from the adaptive part 23. The connecting part 32 and the support arm 33 form a Y-shape. There are two actuating parts 31, located on the two support arms 33 and protruding from the support arms 33.

[0039] The function of the adaptive part 23 is to provide an adaptive distance when locking the column 4. In other words, it enables the action part 31 to be tightly fitted with the column 4. Specifically, when the action part 31 contacts the motor box 41 of the column 4 and pushes the motor box 41 into place, the connection between the column 4 and the crossbeam 1 is not stable. The action part 31 needs to continue to press against the column 4. At this time, the elastic modulus deformation of the adaptive part 23 is required to achieve this and provide force for the action part 31 to press against the column 4, so that the column 4 maintains a stable connection with the crossbeam 1. When the column 4 is not placed, the action part 31 will enter the accommodating space 11 when it reaches the locked state. However, due to the obstruction of the motor box 41, the action part 31 can only abut against the motor box 41. The excessive stroke of the action part 31 then acts in reverse on the adaptive part 23. After the elastic modulus deformation, the adaptive part 23 provides elastic force to make the action part 31 press against the motor box 41.

[0040] In order for the actuating part 31 to work more effectively on the motor housing 41: such as Figure 1 , 4 As shown in Figure 6, the actuating part 31 is located at the end of the actuating link 3 near the receiving space 11. The end of the actuating part 31 near the receiving space 11 has a curved profile. This is to accommodate the rotation and sliding of the actuating link 3. The actuating link 3 rotates under the drive of the operating link 2 and also slides closer to the receiving space 11. If the column 4 is installed in the receiving space 11 at this time, the actuating part 31 will contact the motor box 41 of the column 4. The curved shape of the actuating part 31 ensures that even if the actuating part 31 rotates with the actuating link 3, it can always maintain contact and abutment with the column 4, ensuring that the locking is completed smoothly. From the distance from the receiving space 11, the width of the actuating part 31 in the vertical direction gradually increases. This is to ensure the integrity of the action of the curved end on the column 4. The reason is that the actuating part 31 rotates. If the size of the curved end is too small, it cannot always abut against the column 4 during the entire rotation process, which will result in the column 4 being unstable after installation.

[0041] To prevent excessive rotation of linkage 2 when locked: For example Figure 3 , 4 As shown in Figure 6, the operating part 21 is provided with a protrusion 211, and the protrusion 211 is provided with a limiting shaft 212. The limiting shaft 212 is arranged in the front-back direction and configured such that in the locked state, the limiting shaft 212 abuts against the operating link 3 and prevents the operating link 2 from continuing to rotate, so as to prevent the operating part 31 from disengaging from the column 4 and releasing the lock after excessive rotation during installation.

[0042] The mechanism by which the connecting rod 3 rotates and slides on the crossbeam 1 is as follows: Figure 1 , 3As shown in Figure 4, both crossbeams 1 are provided with sliding grooves 8, which extend along the length of the crossbeams 1; there are two action parts 31, each of which is provided with a sliding shaft 10. The sliding shaft 10 is set in the sliding groove 8 and makes the action part 31 slide and rotate to be connected to the crossbeam 1, thereby realizing that the action link 3 is slidably and rotatably set on the crossbeam 1.

[0043] like Figure 7 , 8 As shown, regarding the configuration on the motor box 41, two limiting members 5 are provided on each of the front and rear end faces of the motor box 41. The limiting members 5 on the same end face are arranged at intervals to the left and right. Two mounting slots 7 are correspondingly opened on each crossbeam 1. An auxiliary limiting member 6 is provided between the two limiting members 5 on the same end face, and an auxiliary limiting slot 9 is opened between the two mounting slots 7. After the column 4 and the table frame are installed, the auxiliary limiting member 6 is located in the auxiliary limiting slot 9. The auxiliary limiting member 6 has a limiting part 61 and a main body part 62. The diameter of the main body part 62 is smaller than that of the limiting part 61. Part 61, the limiting part is located at the end of the main body part 62 and away from the motor box 41. The crossbeam 1 also has a clearance opening 91 on the lower end surface of the auxiliary limiting groove 9. The clearance opening 91 is connected to the auxiliary limiting groove 9 and the diameter of the clearance opening 91 is larger than the groove diameter of the auxiliary limiting groove 9. The clearance opening 91 is configured to allow the limiting part 61 to enter the interior of the crossbeam 1. The auxiliary limiting part 6 and the auxiliary limiting groove 9 realize the anti-disengagement function, ensure the connection between the column 4 and the crossbeam 1, and limit the column 4 in the front and back directions on the crossbeam 1 so that there will be no shaking between the two.

[0044] In addition, from the entry end 71 to the installation end 72, the installation groove 7 first extends upward, and then extends upward at an angle towards the end; this design achieves the anti-reverse function. When the table is in use, the installation groove 7 is tilted upward, and even if the column 4 is subjected to gravity, the limiting member 5 will not be pulled out of the installation groove 7.

[0045] Example 2: The only difference between this example and Example 1 is that the operating part 21 has a bend that forms a space 24 for accommodating a person's hand; specifically:

[0046] like Figure 9 , 10 As shown, from the end of the operating part 21 connected to the adaptive part 23 to the other end, the operating part 21 has a bend at the protrusion 211. The overall orientation of the operating part 21 does not change, but starting from the protrusion 211, the operating part 21 and the adaptive part 23 are offset, forming a space 24 to accommodate a hand. When the user holds the operating part 21 and rotates the operating part 21 towards the crossbeam 1, the hand will not touch the motor box 41 or the table, which is more ergonomic and makes it convenient for the user to perform assembly operations.

[0047] In order to save on mold opening or production costs, the protrusion 211 no longer protrudes significantly from the operating part 21, but is located at the bend of the operating part 21 and becomes part of the bend.

Claims

1. A table frame for quick-release table legs, characterized in that: The device includes two parallel and spaced-apart crossbeams and a locking assembly disposed between the two crossbeams. At the ends of both crossbeams, there is a space for mounting a column. The locking assembly includes an operating link and an actuating link. The operating link is rotatably engaged with the two crossbeams, and the actuating link is rotatably and slidably engaged with the two crossbeams. The operating link and the actuating link are rotatably connected to each other, and the actuating link is closer to the space than the operating link. The operating link includes an operating part, and the actuating link includes an actuating part. The operating part is configured for user operation, and the actuating part is configured to abut against the column. The locking assembly has an unlocked state and a locked state. In the unlocked state, the operating part protrudes vertically from the crossbeam. When switching from the unlocked state to the locked state, rotating the operating linkage causes the operating part to enter between the two crossbeams. The operating linkage drives the actuating linkage to rotate and move toward the receiving space, so that the actuating part enters the receiving space.

2. The table frame for quick-release table legs according to claim 1, characterized in that: The actuating part is located at the end of the actuating link that is close to the receiving space, and the end profile of the actuating part that is close to the receiving space is curved.

3. The table frame for quick-release table legs according to claim 2, characterized in that: As the distance from the accommodating space increases, the width of the functional part in the vertical direction gradually increases.

4. The table frame for quick-release table legs according to claim 1, characterized in that: The operating linkage also includes a rotating part and an adaptive part. The rotating part is rotatably connected to the crossbeam, the adaptive part is connected to the rotating part, and the operating part is connected to the middle of the adaptive part. The adaptive part is vertically arranged between the two crossbeams and is perpendicular to the operating part. The adaptive part is configured to generate elastic modulus deformation in response to external forces.

5. The table frame for quick-release table legs according to claim 1, characterized in that: The operating part is provided with a protrusion, and a limit shaft is provided on the protrusion. The limit shaft is configured such that, in the locked state, the limit shaft abuts against the operating link and prevents the operating link from continuing to rotate.

6. The table frame for quick-release table legs according to claim 1, characterized in that: Both crossbeams are provided with sliding grooves that extend along the length of the crossbeams; there are two action parts, each of which is provided with a sliding shaft, which is set in the sliding groove and allows the action part to slide and rotate to be connected to the crossbeam.

7. The table frame for quick-release table legs according to claim 1, characterized in that: The operating link is roughly T-shaped, and the action link is roughly Y-shaped. The action link also includes two connecting parts arranged at intervals and two branching arms. The two ends of the arms are connected to the connecting parts and the action parts, respectively. The operating part is located between the two connecting parts and is rotatably connected. In the locked state, the operating part is simultaneously located between the two connecting parts and the two arms.

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