Fast-assembly type lifting table frame and fast-assembly method

Abstract

The invention belongs to the technical field of lifting tables, and particularly relates to a fast-assembly type lifting table frame and a fast assembly method. The device comprises two longitudinal beams arranged in parallel, a cross beam, a motor box mounted on the longitudinal beams through a first quick mounting mechanism, a lifting leg mounted on the motor box, a side wing mounted at one end of each longitudinal beam through a second quick mounting mechanism, and a supporting leg mounted at the bottom of the lifting leg through a third quick mounting mechanism; the first quick-mounting mechanism comprises an inclined baffle, a wedge-shaped locking block, a locking mechanism, a locking groove and a guide assembly. The upper end face of the inclined baffle inclines towards the motor box, and the wedge-shaped locking block adapts to a wedge-shaped space between the inclined baffle and the motor box. The inclined baffle is combined with the wedge-shaped locking block to be wedged into the inclined space between the inclined baffle and the motor box, the small-stroke pressure of the wedge-shaped locking block is converted into huge vertical pressing force and horizontal inward locking force on the motor box, and it is ensured that rigid and shake-free connection is conducted between the lifting leg and a main frame composed of the cross beam and the longitudinal beam.

Description

Technical Field

[0001] This invention belongs to the field of height-adjustable desk technology, specifically relating to a quick-assembly height-adjustable desk frame and quick-assembly method. Background Technology

[0002] Height-adjustable desks, as a type of office or home furniture, offer convenience by accommodating different users' heights and work habits. However, in the warehousing and long-distance transportation of height-adjustable desks, to reduce transportation costs and prevent damage from bumps and knocks, it is usually necessary to disassemble and repackage them. Currently, the common practice is to separate the tabletop from the main frame. However, to further reduce packaging volume and optimize logistics efficiency, some products require further disassembly of the frame, such as completely separating the height-adjustable legs, support feet, side wings, and core components of the desktop support frame, and packaging them separately.

[0003] In the existing technology, the on-site assembly of height-adjustable tables mainly relies on traditional screw connections. Users need to use additional tools and follow complicated instructions to identify, align, and tighten a large number of screws one by one. Users need to perform a lot of repetitive tightening operations, which involves many steps, difficulty in aligning screw holes, excessively long overall installation time, and many parts that are easy to lose, affecting the installation progress. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies, such as cumbersome installation, reliance on tools, difficulty in alignment, and long overall installation time, and to provide a quick-assembly lifting table frame and quick-assembly method that does not require tools and can achieve rapid and accurate positioning and locking between multiple components.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] As a first aspect, the present invention provides a quick-installation lifting table frame, comprising: two parallel longitudinal beams, a crossbeam fixedly connected to the two longitudinal beams, a motor box installed on the longitudinal beams via a first quick-installation mechanism, lifting legs installed on the motor box, a side wing installed at one end of the longitudinal beams via a second quick-installation mechanism, and a support foot installed at the bottom of the lifting legs via a third quick-installation mechanism.

[0007] The first quick-assembly mechanism includes an inclined baffle disposed between two longitudinal beams, a wedge-shaped locking block rotatably mounted on the inner side of the inclined baffle, a locking mechanism mounted on one end of the wedge-shaped locking block, a locking groove formed on the lower end face of the longitudinal beam that cooperates with the locking mechanism, and a guide assembly disposed on the inner sidewall of the motor box and the corresponding longitudinal beam.

[0008] The upper end of the inclined baffle is inclined toward the motor box, and the wedge-shaped locking block is adapted to the wedge-shaped space between the inclined baffle and the motor box.

[0009] Furthermore, the tilt angle of the upper end of the inclined baffle facing the direction of the motor box is 10° to 15°.

[0010] Furthermore, the wedge-shaped locking block is integrally molded from plastic material.

[0011] Furthermore, one end of the wedge-shaped locking block is rotatably mounted on the inclined push plate, and the locking mechanism is disposed at the other end of the wedge-shaped locking block;

[0012] When the wedge-shaped locking block is rotated upwards to engage with the wedge-shaped space, the wedge-shaped locking block presses the motor box horizontally away from the wedge-shaped locking block.

[0013] Furthermore, the locking mechanism includes a locking mounting bracket installed at one end of the wedge-shaped locking block, a buckle assembly rotatably installed at the front end of the locking mounting bracket, a "7"-shaped unlocking rod rotatably installed at the rear end of the locking mounting bracket, and a through hole opened on the lower end face of the locking mounting bracket.

[0014] The upper end of the "7"-shaped unlocking rod presses on the buckle assembly, and the lower end of the "7"-shaped unlocking rod extends through the through hole to the bottom of the wedge-shaped locking block. Pulling the "7"-shaped unlocking rod downwards unlocks the buckle assembly from the locking groove.

[0015] Furthermore, the latching assembly includes:

[0016] The vertical mounting block is rotatably mounted to the locking mounting bracket;

[0017] A horizontal pressure bar is fixedly installed on the vertical mounting block and extends horizontally in the direction of the through hole;

[0018] A locking hook is fixedly installed on the upper end face of the transverse pressure bar and is inserted into the locking groove.

[0019] A locking elastic element is disposed between the transverse pressure bar and the locking mounting bracket to provide an elastic force that keeps the locking hook engaged with the locking groove;

[0020] When locked, the locking hook engages with the edge of the locking groove; when unlocked, the "7"-shaped unlocking lever is pulled down, causing the locking hook to disengage from the edge of the locking groove.

[0021] Furthermore, both the wedge-shaped locking block and the locking mounting bracket are made of plastic material, and the wedge-shaped locking block and the locking mounting bracket are integrally formed.

[0022] Furthermore, the second quick-installation mechanism includes a first mounting hole opened on the upper end face of the side wing, a second mounting hole opened on the longitudinal beam corresponding to the first mounting hole, a mounting pin passing through the first mounting hole and the second mounting hole, and a quick-installation assembly disposed at the end of the longitudinal beam.

[0023] The quick-assembly component includes:

[0024] The end cap is fixedly inserted into the end of the longitudinal beam.

[0025] The "U"-shaped fastener is located inside the longitudinal beam and is fixedly connected to the abutment end cap via an "L"-shaped connector.

[0026] The U-shaped locking component has a locking cavity in the middle that corresponds to the second mounting hole;

[0027] In the installed state, the mounting pin passes through the first mounting hole and the second mounting hole from top to bottom and then engages into the engagement cavity.

[0028] Furthermore, the "U"-shaped engaging component includes a connecting part, an arc-shaped engaging part, and an outwardly folded opening connected in sequence;

[0029] The connecting part is connected to the "L"-shaped connector;

[0030] The arc-shaped engaging portion is used to engage and lock with the mounting pin;

[0031] The outward-facing opening is used to guide the mounting pin into the arc-shaped engaging portion during installation.

[0032] Furthermore, the third quick-assembly mechanism includes:

[0033] Two snap-fit ​​plates are symmetrically fixedly installed on the lower end face of the lifting leg;

[0034] Two quick-mount holes are provided on the support foot, corresponding to the snap-fit ​​plate, for inserting the snap-fit ​​plate;

[0035] Two card slots are provided on each of the card slot plates, and the openings of the two card slots face the same direction.

[0036] The n-type snap-fit ​​shaft has two ends that are detachably snap-fitted into the two snap-fit ​​slots respectively;

[0037] A locking element is fixedly installed in the middle part of the n-type snap-fit ​​shaft;

[0038] In the installed state, the snap-fit ​​plate passes through the quick-release hole, and the two ends of the n-type snap-fit ​​shaft are snapped into the corresponding snap-fit ​​grooves. The n-type snap-fit ​​shaft is rotated clockwise until the locking member abuts and locks against the support foot.

[0039] Furthermore, the n-type snap-fit ​​shaft includes a middle snap-fit ​​horizontal shaft, a first limiting shaft and a second limiting shaft fixedly disposed at both ends of the snap-fit ​​horizontal shaft;

[0040] Both the first limiting axis and the second limiting axis are perpendicular to the locking horizontal axis.

[0041] Secondly, the present invention also provides a quick-assembly method for a quick-assembly adjustable table frame, based on the quick-assembly adjustable table frame as described above, comprising the following:

[0042] Assemble the motor box and longitudinal beam;

[0043] Side mounting;

[0044] And, the assembly of the support legs;

[0045] There is no fixed order among the three steps: assembling the motor box and longitudinal beam, installing the side wings, and assembling the support legs.

[0046] Specifically, the assembly of the motor box and the longitudinal beam includes the following:

[0047] The crossbeams are fixedly connected between the two longitudinal beams to form the main frame;

[0048] The lifting leg with the motor box is inserted from below the main frame, and the guide boss is aligned with the vertical groove of the "┐" shaped guide groove on the inner side wall of the longitudinal beam;

[0049] The motor box is pushed along the horizontal groove of the "┐" shaped guide groove, causing the guide boss to slide to the end of the horizontal groove, thus completing the initial positioning and guidance of the motor box;

[0050] Rotate the wedge-shaped locking block upwards so that it wedges into the wedge-shaped space between the inclined surface of the inclined baffle and the end of the motor box;

[0051] When the wedge-shaped locking block rotates to the horizontal position, the latching assembly engages with the locking groove.

[0052] Specifically, the wing assembly includes the following:

[0053] Fit the side wing to the end of the longitudinal beam, aligning the first mounting hole on the side wing with the second mounting hole at the end of the longitudinal beam;

[0054] Insert the mounting pin vertically, passing it through the first mounting hole and the second mounting hole in sequence;

[0055] The lower end of the mounting pin contacts and engages with the engagement cavity in the middle of the "U"-shaped engagement piece, thus completing the installation of the side wing.

[0056] Specifically, the support leg assembly includes the following:

[0057] Align the support foot with the bottom of the lifting leg, and pass the snap-fit ​​plate fixed on the lifting leg through the quick-release hole on the support foot;

[0058] The horizontal shaft is snapped into the snap-fit ​​groove, and at the same time, the first and second limiting shafts at both ends are located on the outside of the two snap-fit ​​plates;

[0059] Rotate the locking element and rotate the n-type locking shaft clockwise until the locking element and the support foot reach the interference fit position.

[0060] Continue rotating by another 2° to 4°, and the n-type snap-fit ​​shaft will be limited by the limiting boss, completing the installation of the support foot.

[0061] The beneficial effects of the quick-assembly lifting table frame and quick-assembly method of the present invention are as follows:

[0062] This invention integrates three independent quick-assembly mechanisms—the first, second, and third—designed for the motor box, side wings, and support legs, respectively, creating a tool-free, quick-assembly and disassembly system. Users can complete the entire assembly or disassembly process with simple actions such as pushing, pressing, rotating, and plugging, significantly lowering the installation threshold, enhancing the user experience, and meeting modern consumers' demands for convenient assembly. The first quick-assembly mechanism uses a guide component to ensure the initial positioning of the motor box and the longitudinal beam, avoiding the repeated alignment defects of existing technologies. Utilizing an inclined baffle with its upper end tilted towards the motor box, combined with a wedge-shaped locking block wedged into the inclined space between the baffle and the motor box, the small stroke pressure of the wedge-shaped locking block is converted into a large vertical clamping force and a horizontal inward locking force on the motor box. This horizontal inward locking force pushes the motor box towards the crossbeam, thereby locking the motor box to the longitudinal beam. In other words, it cleverly utilizes the principle of inclined plane force amplification to ensure a rigid, wobbly connection between the lifting legs and the main frame composed of the crossbeam and longitudinal beam.

[0063] Meanwhile, this invention utilizes a figure-7 shaped unlocking rod that passes through a through hole on the lower end face of the locking mounting bracket and extends to the bottom of the pressing mechanism. Pulling down the figure-7 shaped unlocking rod unlocks the buckle assembly and the locking groove. The unlocking position is set on the lower end face of the pressing mechanism. Compared with the existing structure that requires pressing to unlock, this invention saves horizontal space. With the cooperation of the locking elastic element, the operator only needs to gently pull down the figure-7 shaped unlocking rod to lock or unlock the buckle assembly and the locking groove, which is stable and simple. Attached Figure Description

[0064] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0065] Figure 1This is a perspective view of the quick-assembly lifting table frame in an embodiment of the present invention.

[0066] Figure 2 This is a schematic diagram of the quick-installation lifting table frame from a lower perspective in an embodiment of the present invention.

[0067] Figure 3 This is an installation diagram of the first quick-assembly mechanism and the longitudinal beam in an embodiment of the present invention.

[0068] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0069] Figure 5 This is a schematic diagram of the structure of the first quick-assembly mechanism in an embodiment of the present invention.

[0070] Figure 6 This is a schematic diagram of the internal structure of the locking mechanism in an embodiment of the present invention.

[0071] Figure 7 This is an installation diagram of the motor box and longitudinal beam in an embodiment of the present invention.

[0072] Figure 8 A schematic diagram of the wedge-shaped locking block in an embodiment of the present invention.

[0073] Figure 9 This is a front view of the installation of the inclined baffle and the longitudinal beam in an embodiment of the present invention.

[0074] Figure 10 This is a schematic diagram of the installation of the side wings and longitudinal beams in an embodiment of the present invention.

[0075] Figure 11 This is a diagram showing the installation positions of the second quick-assembly mechanism and the side wing in an embodiment of the present invention.

[0076] Figure 12 This is a diagram showing the position of the second mounting hole on the longitudinal beam in an embodiment of the present invention.

[0077] Figure 13 yes Figure 12 Enlarged view of point A in the middle.

[0078] Figure 14 This is a schematic diagram illustrating the cooperation between the quick-installation component and the installation pin in an embodiment of the present invention.

[0079] Figure 15 This is a schematic diagram of the mounting pin structure in an embodiment of the present invention.

[0080] Figure 16 This is a schematic diagram of the quick-installation component in an embodiment of the present invention.

[0081] Figure 17 yes Figure 16 Top view.

[0082] Figure 18 This is a three-dimensional view of the connection between the support leg and the lifting leg in an embodiment of the present invention.

[0083] Figure 19 yes Figure 18 Enlarged view of point A in the middle.

[0084] Figure 20 This is a schematic diagram of the support foot in an embodiment of the present invention.

[0085] Figure 21 This is a schematic diagram of the third quick-assembly mechanism in an embodiment of the present invention.

[0086] Figure 22 This is a schematic diagram of the structure of the locking member in the locked state in an embodiment of the present invention.

[0087] Figure 23 This is a schematic diagram of the snap-fit ​​plate in an embodiment of the present invention.

[0088] Figure 24 This is a schematic diagram of the structure of the n-type snap-fit ​​shaft in an embodiment of the present invention.

[0089] Figure 25 This is a schematic diagram of the locking component in an embodiment of the present invention.

[0090] Figure 26 This is a flowchart illustrating the assembly process of the motor box and the longitudinal beam in an embodiment of the present invention.

[0091] Figure 27 This is a flowchart illustrating the assembly process of the side wings and longitudinal beams in an embodiment of the present invention.

[0092] Figure 28 This is a flowchart illustrating the assembly process of the support leg and the lifting leg in an embodiment of the present invention.

[0093] In the diagram: 1. Longitudinal beam, 2. Crossbeam, 3. First quick-release mechanism, 31. Inclined baffle, 33. Wedge-shaped locking block, 331. Connecting part, 332. Pushing part, 333. Mounting part, 34. Locking mechanism, 341. Locking mounting bracket, 342. Buckle assembly, 3421. Vertical mounting block, 3422. Horizontal pressure bar, 3423. Locking hook, 3424. Locking elastic element, 343. "7" shaped unlocking rod, 3431. Pressing part, 3432. Unlocking part, 35. Locking groove, 36. Guide assembly, 361. "┐" shaped guide groove, 3611. Vertical groove, 3612. Horizontal groove, 362. Guide boss, 4. Motor box, 5. Lifting leg, 6. Second quick-release mechanism, 61. First mounting hole, 62. Second mounting hole, 63. Mounting pin, 631. Middle 632. Pin body, upper cap, 633. lower locking boss, 64. quick-release assembly, 641. abutment end cap, 6411. abutment plate, 6412. insertion plate, 6413. anti-detachment boss, 642. "U" shaped locking part, 6421. connecting part, 6422. arc-shaped locking part, 6423. outward opening part, 643. locking cavity, 644. "L" shaped connector, 7. side 8. Wing, Third quick-release mechanism, 81. Snap-fit ​​plate, 82. Quick-release hole, 83. Snap-fit ​​groove, 831. Inlet section, 832. Arc-shaped locking section, 84. N-type snap-fit ​​shaft, 841. Snap-fit ​​horizontal shaft, 842. First limiting shaft, 843. Second limiting shaft, 85. Locking component, 851. Wedge-shaped body, 852. Through hole, 853. Hexagonal hole, 86. Limiting boss, 9. Support foot. Detailed Implementation

[0094] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0095] like Figures 1-25 A specific embodiment of the quick-assembly lifting table frame of the present invention, as shown, includes: two parallel longitudinal beams 1, a crossbeam 2 fixedly connected to the two longitudinal beams 1, a motor box 4 installed on the longitudinal beams 1 via a first quick-assembly mechanism 3, lifting legs 5 installed on the motor box 4, side wings 7 installed at one end of the longitudinal beams 1 via a second quick-assembly mechanism 6, and support feet 9 installed at the bottom of the lifting legs 5 via a third quick-assembly mechanism 8. Wherein, as... Figures 2 to 8As shown, the first quick-assembly mechanism 3 in this embodiment includes an inclined baffle 31 disposed between two longitudinal beams 1, a wedge-shaped locking block 33 rotatably mounted on the inner side of the inclined baffle 31, a locking mechanism 34 mounted on one end of the wedge-shaped locking block 33, a locking groove 35 formed on the lower end surface of the longitudinal beam 1 and cooperating with the locking mechanism 34, and a guide assembly 36 disposed on the inner sidewall of the motor box 4 and the corresponding longitudinal beam 1. The upper end of the inclined baffle 31 is inclined towards the motor box 4, and the wedge-shaped locking block 33 is adapted to the wedge-shaped space between the inclined baffle 31 and the motor box 4.

[0096] In this embodiment, the first quick-assembly mechanism 3 uses a guide assembly to ensure the initial positioning of the motor box 4 and the longitudinal beam 1, avoiding the defect of repeated alignment in the prior art. Figure 6 As shown, in this embodiment, an inclined baffle 31 with its upper end tilted towards the motor box 4 is used. Combined with a wedge-shaped locking block 33 that is wedged into the wedge-shaped space between the inclined baffle 31 and the motor box 4, the small stroke pressure of the wedge-shaped locking block 33 is converted into a huge vertical clamping force and a horizontal inward locking force on the motor box 4. The horizontal inward locking force is used to push the motor box 4 to move towards the crossbeam 2, thereby achieving the locking of the motor box 4 and the longitudinal beam 1.

[0097] Specifically, see Figure 9 The upper end of the inclined baffle 31 is inclined at an angle of 10° to 15° towards the motor box 4. If the angle is too small, the force-increasing effect is limited and a great operating force is required. If the angle is too large, the force-increasing effect is significant but the locking stroke is too long and the operation is inconvenient.

[0098] like Figure 5 As shown, the wedge-shaped locking block 33 in this embodiment includes a connecting part 331, a pushing part 332, and a mounting part 333 connected in sequence. The connecting part 331 is rotatably connected to the inclined push plate 31. The pushing part 332 is wedge-shaped and cooperates with the inclined push plate 31 to form a pressing surface against the motor box 8. The mounting part 333 is used to install the locking assembly. It should be further noted that the inclined push plate 31 in this embodiment is fixedly disposed between the two longitudinal beams 1, located at the end of the longitudinal beam 1 and on one side of the motor box 8. One end of the wedge-shaped locking block 33 is rotatably mounted on the inclined push plate 31, and the locking mechanism 34 is disposed at the other end of the wedge-shaped locking block 33. The shape of the wedge-shaped locking block 33 is adapted to the wedge-shaped space between the inclined push plate 31 and the motor box 8; when the wedge-shaped locking block 33 is rotated upward to engage with the wedge-shaped space, the wedge-shaped locking block 33 horizontally presses the motor box 8 away from the wedge-shaped locking block 33.

[0099] Further explanation is provided here: the locking mechanism 34 in this embodiment includes a locking mounting bracket 341 installed at one end of the wedge-shaped locking block 33, a latching assembly 342 rotatably installed at the front end of the locking mounting bracket 341, a "7"-shaped unlocking rod 343 rotatably installed at the rear end of the locking mounting bracket 341, and a through hole formed on the lower end face of the locking mounting bracket 341; the upper end of the "7"-shaped unlocking rod 343 presses against the latching assembly 342, and the lower end of the "7"-shaped unlocking rod 343 extends through the through hole to the bottom of the wedge-shaped locking block 33. Pulling down the "7"-shaped unlocking rod 343 unlocks the latching assembly 343 from the locking groove 35. See details below. Figure 5 and Figure 6 .

[0100] The locking mechanism 34 of the present invention cleverly utilizes a figure-7 shaped unlocking rod 343, which passes through a through hole on the lower end face of the locking mounting bracket 341 and extends to the lower part of the wedge-shaped locking block. Pulling down the figure-7 shaped unlocking rod 343 unlocks the latch assembly 342 and the locking groove 35. The unlocking position is set on the lower end face of the wedge-shaped locking block 33. Compared with the existing structure that requires pressing to unlock, the present invention saves horizontal space. With the cooperation of the locking elastic element 3424, the operator only needs to gently pull down the figure-7 shaped unlocking rod 343 to unlock the latch assembly 342 and the locking groove 35, which is stable and simple.

[0101] Specifically, see Figure 6 The latching assembly 342 includes a vertical mounting block 3421, a horizontal pressure bar 3422, a locking hook 3423, and a locking elastic element 3424. The vertical mounting block 3421 is rotatably mounted to the locking mounting bracket 341. The horizontal pressure bar 3422 is fixedly mounted on the vertical mounting block 3421 and extends horizontally towards the through hole. The locking hook 3423 is fixedly mounted on the upper end face of the horizontal pressure bar 3422 and is inserted into the locking groove 35. The locking elastic element 3424 is disposed between the horizontal pressure bar 3422 and the locking mounting bracket 341 and is used to provide an elastic force to keep the locking hook 3423 engaged with the locking groove 35. In this embodiment, the locking elastic element 3424 is a spring, but it can also be other elastic components; no absolute limitation is made here. When locked, the locking hook 3423 engages with the edge of the locking groove 35; when unlocked, the "7"-shaped unlocking lever 343 is pulled down, causing the locking hook 3423 to disengage from the edge of the locking groove 35.

[0102] The locking process is described in detail below. When the user rotates the wedge-shaped locking block 33 upwards, the pushing part 332 of the wedge-shaped locking block 33 wedges into the space between the inclined push plate 31 and the motor box 8, completing the horizontal clamping of the motor box 8. The locking hook 3423, located at the end of the wedge-shaped locking block, moves upwards synchronously. At the moment the wedge-shaped locking block reaches its end position, the locking hook 3423 automatically swings upwards under the preload of the locking elastic element 3424, so that its tip is precisely embedded in the locking groove 35 corresponding to the lower end face of the longitudinal beam 1. The locking hook 3423 hooks onto the edge of the locking groove 35, that is, the locking hook 3423 and the locking groove 35 form a mechanical engagement, thereby firmly locking the wedge-shaped locking block 33 in the current clamping position. At this time, even if there is a reverse external force attempting to rotate the wedge-shaped locking block 33 downwards, the locking hook 3423 will be prevented by its resistance to the edge of the locking groove 35, ensuring that the clamping state will not be accidentally released. The user only needs to complete one action of rotating the wedge-shaped locking block 33, without the need for additional locking operations. The operation is simple and has high safety and reliability.

[0103] The “7”-shaped unlocking lever 343 includes a horizontally arranged pressing part 3431 and a vertically arranged unlocking part 3432; the pressing part 3431 is pressed on the horizontal pressing rod 3422, and the unlocking part 3432 extends downward through the through hole 64 to the bottom of the wedge-shaped locking block 33.

[0104] The unlocking process is as follows: When it is necessary to disassemble or adjust the motor box 4, the user pulls down the lower end of the "7"-shaped unlocking lever 343, which extends to the vertical unlocking part 3432 of the wedge-shaped locking block 33. The pulling action, through the lever principle of the unlocking lever, causes the horizontal pressing part 3431 at its upper end to apply downward pressure to the horizontal pressing rod 3422. This pressure overcomes the elastic force of the locking elastic element 3424, forcing the entire latch assembly 62 to produce a slight rotation about the vertical mounting block 3421 as the axis. This rotation causes the locking hook 3423 to move downward, causing the tip of the locking hook 3423 to disengage from the edge of the locking groove 35. Once the locking hook 3423 disengages from the locking groove 35, the mechanical constraint on the wedge-shaped locking block 33 is released. At this time, the user can easily rotate the wedge-shaped locking block 33 downward, causing the pushing part 332 of the wedge-shaped locking block 33 to exit from the wedge-shaped space, thereby releasing the horizontal clamping force on the motor box 4. The unlocking process only requires one hand to pull down the vertical unlocking part 3432 of the "7"-shaped unlocking lever 343. The operation position is located below the entire wedge-shaped locking block 33, which is easy for the human hand to reach.

[0105] In this embodiment, the wedge-shaped locking block 33 has a wedge-shaped structure. Both the locking mounting bracket 341 and the wedge-shaped locking block 33 in this embodiment are made of plastic material. The elastic modulus of plastic is lower than that of metal. Plastic material has the property of slight deformation. When the wedge-shaped locking block 33 enters the space between the inclined push plate 31 and the motor box 8 and is wedge-tightened, it has a certain buffer. Even if the space between the inclined push plate 31 and the motor box 4 is slightly larger or smaller than the pushing part 332, it can still enter. As a preferred embodiment, the locking mounting bracket 341 and the wedge-shaped locking block 33 are integrally molded, that is, integrally injection molded, which reduces assembly process and cost.

[0106] like Figures 5 to 9 As shown, the guiding assembly in this embodiment includes: at least two "┐"-shaped guide grooves 361 symmetrically formed on the side walls of the two longitudinal beams 1, and a guide boss 362 fixedly disposed on the outer side wall of the motor box 4. The guide boss 362 cooperates with the "┐"-shaped guide grooves 361 for guidance. The "┐"-shaped guide groove 361 includes a vertical groove 3611 and a horizontal groove 3612; the guide boss 362 enters from the vertical groove 3611 and is fixed at the end of the horizontal groove 3612.

[0107] During installation, the user lifts the motor box 4 along with the lifting legs 5 from under the main frame of the table, ensuring that the guide bosses 362 on both sides of the motor box 4 are precisely aligned with the vertical grooves 3611 of the "┐"-shaped guide grooves 361 on the inner side of the two longitudinal beams 1. First, the motor box 4 is pushed in along the vertical groove 3611. This process eliminates degrees of freedom in other directions, allowing the motor box 4 to move only in a single vertical direction, ensuring the uniqueness and accuracy of the initial alignment. Then, under the horizontal push of the wedge-shaped locking block 33, the motor box 4 is pushed in along the horizontal groove 3612. That is, when the guide bosses 362 rise along the vertical groove 3611 to the junction of the bottom and the horizontal groove 3612, the bottom of the motor box 4 has also contacted or is close to the support surface on the longitudinal beam 1. At this point, the wedge-shaped locking block 33 horizontally pushes the motor box 4 towards the inner side of the table frame. The guide boss 362 then slides from the vertical groove 3611 into the horizontal groove 3612 and continues to move along the horizontal groove 3612. When the guide boss 362 slides to the end of the horizontal groove 3612, the motor box 4 reaches the preset final installation position. This position is pre-designed and precisely corresponds to the inclined surface of the inclined baffle 31 and the locking point of the wedge-shaped locking block 33, thus preparing for the subsequent locking operation.

[0108] Specifically, such as Figure 10 and Figure 11 As shown, the second quick-release mechanism 6 includes a first mounting hole 61 on the upper surface of the side wing 7, a second mounting hole 62 corresponding to the first mounting hole 61 on the longitudinal beam 1, a mounting pin 63 passing through the first mounting hole 61 and the second mounting hole 62, and a quick-release assembly 64 disposed at the end of the longitudinal beam 1. It should be noted in detail that... Figure 14 As shown, the quick-installation assembly 6414 in this embodiment includes an abutment end cap 641 fixedly inserted at the end of the longitudinal beam 1 and a "U"-shaped locking member 642 located in the inner cavity of the longitudinal beam 1. The "U"-shaped locking member 642 is fixedly connected to the abutment end cap 641 through an "L"-shaped connector 644. The middle part of the "U"-shaped locking member 642 is provided with a locking cavity 643 corresponding to the second mounting hole 62. In the installed state, the mounting pin 63 passes through the first mounting hole 61 and the second mounting hole 62 from top to bottom and then locks into the locking cavity 643.

[0109] In this embodiment, the mounting pin 63 is sequentially inserted into the interior of the longitudinal beam 1 through the first mounting hole 61 on the side wing 7 and the second mounting hole 62 on the longitudinal beam 1. At the same time, a quick-installation assembly 64 is installed at the end of the longitudinal beam 1, so that the "U"-shaped locking member 642 is located in the inner cavity of the longitudinal beam 1. The side wing 7 is pushed towards the longitudinal beam 1, so that the lower end of the mounting pin 63 is engaged in the locking cavity 643 provided in the middle of the "U"-shaped locking member 642, thereby realizing the quick installation of the side wing 7 and the longitudinal beam 1. During installation, it is only necessary to initially align the first mounting hole 61 on the side wing 7 with the second mounting hole 62 on the longitudinal beam 1, insert the mounting pin 63, and then gently push the side wing 7 towards the longitudinal beam 1, so that the lower end of the mounting pin 63 automatically slides into and locks into the locking cavity 643 of the "U"-shaped locking member 642. The entire process requires no bolts, screwdrivers, or other fastening tools, and a single person can complete the installation of one side wing 7 in tens of seconds, greatly improving assembly efficiency and user experience. This embodiment abandons traditional bolt connections, realizing quick installation and disassembly of the side wing 7 and the longitudinal beam 1 without tools, with a one-step snap-fit. The mechanical interlocking of the pin and the engagement cavity 643 ensures reliable connection strength.

[0110] Specifically, such as Figure 14 As shown, the quick-release assembly 64 in this embodiment is made of plastic, and the "U"-shaped locking part 642, the abutting end cap 641, and the "L"-shaped connector 644 are integrally molded. The plastic material has a certain degree of elasticity, which allows the "U"-shaped locking part 642 to produce appropriate deformation and rebound when it engages with the mounting pin 63, ensuring both smooth insertion and providing stable locking force and impact resistance. At the same time, the use of plastic material facilitates the integral molding of complex structures using processes such as injection molding.

[0111] The three components, namely the "U"-shaped snap-fit ​​part 642, the abutment end cap 641, and the "L"-shaped connector 644, are integrally molded, eliminating problems such as loose connections and accumulated assembly errors that may exist in traditional separate assembly. At the same time, it reduces the number of parts and assembly steps, ensuring the stability of the quick-assembly component 64 and reducing production costs.

[0112] like Figures 14 to 17As shown, the "U"-shaped engaging component 642 in this embodiment includes a connecting portion 6421, an arc-shaped engaging portion 6422, and an outwardly flared opening portion 6423 connected in sequence. The connecting portion 6421 is connected to the "L"-shaped connecting component 644. The arc-shaped engaging portion 6422 is used to engage and lock with the mounting pin 63. The outwardly flared opening portion 6423 is used to guide the mounting pin 63 into the arc-shaped engaging portion 6422 during installation. The outwardly flared opening portion 6423 forms a trumpet-shaped guiding slope. During installation, even if there is a certain deviation between the mounting pin 63 and the center of the engaging cavity 643 when it falls, the slope can automatically guide the pin into the correct track, significantly reducing the requirement for initial alignment accuracy and making the installation operation smoother. The arc-shaped engaging portion 6422 and the lower engaging boss 633 at the lower end of the mounting pin 63 are mutually matched to form a covering surface contact lock, effectively resisting axial pull-out and lateral shaking.

[0113] In this embodiment, the second mounting hole 62 is a gourd-shaped hole. The diameter of the second mounting hole 62 at one end near the end of the longitudinal beam 1 is larger than the diameter at the other end. See details below. Figure 13 The first mounting hole 61 is a circular hole.

[0114] This embodiment utilizes an arc-shaped locking part 6422 and a gourd-shaped second mounting hole 62 to provide two layers of constraint on the mounting pin in the horizontal direction. In the vertical direction, the mounting pin's own structure provides vertical position constraint, ensuring the stability of the installation position of the side wing 7 and the longitudinal beam 1. Furthermore, the entrance of the "U"-shaped locking part 642 is set as an outward-turned opening 6423, forming a guide slope. Combined with the gourd-shaped design of the second mounting hole 62, i.e., the large-diameter hole is used for introduction and the small-diameter hole is used for locking, the mounting pin 63 has an automatic correction and alignment function during the pushing process. Even if there is a slight deviation in the initial alignment, it can be smoothly introduced into the locking cavity 643 to complete the locking.

[0115] Specifically, in the positioning state, the large diameter of the second mounting hole 62 is aligned with the first mounting hole 61, and the mounting pin 63 is inserted from top to bottom into the large diameter of the first mounting hole 61 and the second mounting hole 62. In the locking state, pushing the side wing 7 causes the mounting pin 63 to slide into the small diameter end of the second mounting hole 62 and engage in the locking cavity 643, while the side wing 7 abuts against the end cap 641.

[0116] like Figure 15 As shown, the mounting pin 63 in this embodiment includes an intermediate pin 631, an upper cap 632 fixedly disposed on the upper end of the intermediate pin 631, and a lower engaging boss 633 fixedly disposed on the lower end of the intermediate pin 631, wherein the lower engaging boss 633 engages with the arc-shaped engaging part 6422.

[0117] Specifically, the upper cap 632 not only facilitates manual handling but also effectively prevents the mounting pin 63 from accidentally falling out of the hole when not in use. After installation, the upper cap 632 simultaneously seals the opening, improving the product's appearance integrity. The lower locking boss 633 and the arc-shaped locking part 6422 of the "U"-shaped locking part 642 form an arc-shaped complementary interlocking fit. When locked, the lower locking boss 633 and the arc-shaped locking part 6422 achieve an interference fit through elastic deformation, generating a continuous clamping force, achieving self-locking without auxiliary fasteners.

[0118] See Figure 16 In this embodiment, the abutment end cap 641 includes an abutment plate 6411 located on the outside of the longitudinal beam 1, an insertion plate 6412 symmetrically arranged on both sides of the abutment plate 6411 and extending into the inner cavity of the longitudinal beam 1, and an anti-detachment protrusion 6413 provided on the outer surface of the insertion plate 6412. When the side wing 7 is pushed to the final installation position, the outer end face of the abutment plate 6411 fits tightly with the side wing 7, which not only eliminates the assembly gap between the two, but also effectively transfers the load on the side wing 7 to the end of the longitudinal beam 1, enhancing the load-bearing stability of the overall structure. The symmetrically arranged insertion plates 6412 extending into the inner cavity of the longitudinal beam 1 form a stable nested connection between the abutment end cap 641 and the longitudinal beam 1. The anti-detachment protrusion 6413 provided on the outer surface of the insertion plate 6412 is embedded into the inner wall of the longitudinal beam 1 through an interference fit. The friction between the anti-detachment protrusion 6413 and the inner wall of the longitudinal beam 1 prevents the risk of the abutment end cap 641 and the longitudinal beam 1 from loosening due to repeated stress during use.

[0119] like Figures 18 to 22 As shown, the third quick-release mechanism 8 in this embodiment includes two snap-fit ​​plates 81 symmetrically fixedly mounted on the lower end face of the lifting leg 5, quick-release holes 82 corresponding to the snap-fit ​​plates 81 and opened on the support leg 9, two snap-fit ​​grooves 83 provided on the two snap-fit ​​plates 81, an n-shaped snap-fit ​​shaft 84, and a locking member 85. The two quick-release holes 82 are opened on the support leg 9 corresponding to the snap-fit ​​plates 81 and are used for inserting the snap-fit ​​plates 81. Each snap-fit ​​plate 81 is provided with a snap-fit ​​groove 83, and the openings of the two snap-fit ​​grooves 83 face the same direction. The two ends of the n-shaped snap-fit ​​shaft 84 are detachably snapped into the two snap-fit ​​grooves 83 respectively. The locking component 85 is welded to the n-type snap-fit ​​shaft 84 and is perpendicular to the bent end of the n-type snap-fit ​​shaft 84. In the installed state, the snap-fit ​​plate 81 is inserted into the quick-release hole 82, and both ends of the n-type snap-fit ​​shaft 84 are snapped into the corresponding snap-fit ​​grooves 83. The locking component 85 is interference-fitted with the support foot 9. When the n-type snap-fit ​​shaft 84 is rotated clockwise, it rotates to the maximum interference position through the elastic deformation of the snap-fit ​​shaft 84. At this time, the locking component 85 is perpendicular to the support foot 9.

[0120] like Figure 22As shown, in this embodiment, a snap-fit ​​plate 81 symmetrically arranged on the lower end face of the lifting leg 52, a snap-fit ​​groove 83 on the snap-fit ​​plate 81, a rotatable n-shaped snap-fit ​​shaft 84, and a locking member 85 that abuts and locks against the support leg 9, achieves quick installation and locking between the support leg 9 and the lifting leg 52. This embodiment abandons the traditional screw fixing method, snap-fit ​​method, and spring pin method. During installation, simply align the two ends of the n-shaped snap-fit ​​shaft 84 with the snap-fit ​​groove 83, push it in, and rotate it clockwise. The continuous pressing force generated by the end face of the locking member 85 securely connects the support leg 9 and the lifting leg 52. The structure is simple and reliable, and can be operated by hand without any tools, greatly improving assembly efficiency.

[0121] In detail, such as Figure 24 As shown, the n-type snap-fit ​​shaft 84 in this embodiment includes a central snap-fit ​​horizontal shaft 841, and a first limiting shaft 842 and a second limiting shaft 843 fixedly disposed at both ends of the snap-fit ​​horizontal shaft 841. Both the first limiting shaft 842 and the second limiting shaft 843 are perpendicular to the snap-fit ​​horizontal shaft 841. In the actual installation process, the first limiting shaft 842 is integrally formed with the snap-fit ​​horizontal shaft 841, and the second limiting shaft 843 is fixed to the snap-fit ​​horizontal shaft with screws or welded. Specifically, during installation, the support foot 9 is initially aligned with the bottom of the lifting leg 5, and the snap-fit ​​plate 81 fixed on the lifting leg 52 passes through the quick-release hole 82 on the support foot 9 to snap the snap-fit ​​horizontal shaft 841 into the snap-fit ​​groove 83. At the same time, the first limiting shaft 842 and the second limiting shaft 843 at both ends are located outside the two snap-fit ​​plates 81. Hold the snap-fit ​​horizontal shaft 841 or the locking piece 85 and rotate the n-type snap-fit ​​shaft 84 approximately 90 degrees clockwise. The limiting shaft 142 slides within the arc-shaped locking section 832 of the snap-fit ​​groove 83, causing the snap-fit ​​horizontal shaft 841 and the locking member 85 fixed on the snap-fit ​​horizontal shaft 841 to move towards the mounting surface of the support foot 9 until the locking member 85 and the support foot 9 reach the maximum interference position, that is, the locking member 85 and the support foot 9 are perpendicular. Then, it continues to rotate a small angle, such as 3 degrees, so that the snap-fit ​​shaft 84 is limited by the two limiting shafts, which is equivalent to exceeding the dead point, to prevent the locking member 85 from loosening in the opposite direction, resulting in locking failure.

[0122] As a preferred embodiment, such as Figure 22 and Figure 24 As shown, this embodiment also includes at least one limiting boss 86, which is fixedly disposed on the outer side of the snap-fit ​​plate 81. In the snap-fit ​​locked state, the limiting shaft 142 engages with the limiting boss 86. In this embodiment, two limiting bosses 86 are provided, located on the outer sides of the two snap-fit ​​plates 81 respectively, and correspondingly engaging with the first limiting shaft 842 and the second limiting shaft 843. In the final snap-fit ​​locked state, the sides of the two limiting shafts of the n-shaped snap-fit ​​shaft 84 make physical contact with the corresponding limiting bosses 86, achieving a rigid limiting engagement.

[0123] like Figure 6 As shown, the snap-fit ​​groove 83 in this embodiment is question mark shaped, but it can also be horn shaped. The snap-fit ​​groove 83 includes an inlet section 831 for the end of the n-type snap-fit ​​shaft 84 to be inserted and an arc-shaped locking section 832 communicating with the inlet section 831. See [link to documentation]. Figure 23 As shown. When the user rotates the n-type snap-fit ​​shaft 84 clockwise, the first limiting shaft 842 and the second limiting shaft 843 at both ends rotate in the arc-shaped locking section 832 of the snap-fit ​​groove 83. When the rotation approaches 80-90 degrees, the first limiting shaft 842 and the second limiting shaft 843 begin to approach the limiting boss 86 located on the outside of the snap-fit ​​plate 81, and continue to rotate until the rotation path of the two limiting shafts is physically blocked by the limiting boss 86 and cannot continue to advance. At this time, the rotation is forced to stop, and at the same time, the two limiting shafts 142 are also completely engaged at the end position of the locking section of the snap-fit ​​groove 83, and the abutment block reaches the maximum pressing stroke. The limiting boss 86, as an insurmountable physical barrier, directly and forcefully limits the maximum rotation angle of the n-type snap-fit ​​shaft 84. That is, no matter how much force the user uses, the rotation operation will be forcibly stopped at the same physical position when it hits the limiting boss 86, preventing the n-type snap-fit ​​shaft 84 from accidentally reversing and loosening.

[0124] This embodiment uses a question mark-shaped or horn-shaped snap-fit ​​groove 83 to facilitate the insertion of the n-type snap-fit ​​shaft 84. Combined with the matching of the limiting boss 86 with the n-type snap-fit ​​shaft 84, it ensures that after installation and locking, it is anti-reverse self-locking. During packaging and transportation, the support foot 9 and the lifting leg 52 can be quickly separated to achieve flat packaging, which significantly saves storage and logistics space and costs.

[0125] like Figure 25 As shown, the locking member 85 in this embodiment adopts a wedge-shaped structure. Specifically, the locking member 85 includes a wedge-shaped body 851, a through hole 852 opened in the middle of the wedge-shaped body 851 for passing through the n-type snap-fit ​​shaft 84, and a hexagonal hole 853 opened at the top of the large end of the wedge-shaped body 851.

[0126] This invention integrates three independent quick-assembly mechanisms—the first, second, and third—to design a lifting table frame that requires no additional tools for quick assembly and disassembly at three assembly / disassembly points: the motor box 4, the side wings 7, and the support legs 9. Users can complete the entire assembly or disassembly process simply by pushing, pressing, rotating, and plugging in, greatly reducing the installation threshold, enhancing the user experience, and meeting the demands of modern consumers for convenient assembly.

[0127] The quick-assembly method for the aforementioned quick-assembly lifting table frame includes the following steps: assembling the motor box 4 with the longitudinal beam 1, installing the side wings 7, and assembling the support legs 9. There is no fixed order between the three steps: assembling the motor box 4 with the longitudinal beam 1, installing the side wings 7, and assembling the support legs 9.

[0128] like Figure 26As shown, the assembly of the motor box 4 and the longitudinal beam 1 in this embodiment includes the following:

[0129] S11: The crossbeam 2 is fixedly connected between the two longitudinal beams 1 to form the main frame;

[0130] S12: Insert the lifting leg 5 with motor box 4 from below the main frame, and align the guide boss 362 with the vertical groove 3611 of the "┐" shaped guide groove 361 on the inner wall of the longitudinal beam 1;

[0131] S13: Push the motor box 4 along the horizontal groove 3612 of the “┐”-shaped guide groove 361, so that the guide boss 362 slides to the end of the horizontal groove 3612, completing the initial positioning and guidance of the motor box 4;

[0132] S14: Rotate the wedge-shaped locking block 33 upwards so that the wedge-shaped locking block 33 is wedged into the wedge-shaped space between the inclined surface of the inclined baffle 31 and the end of the motor box 4;

[0133] S15: When the wedge-shaped locking block 33 rotates to the horizontal position, the engaging assembly 34 engages with the locking groove 35.

[0134] The crossbeam 2 is fixedly connected to the two longitudinal beams 1 to form a stable main frame. The user lifts the motor box 4, which integrates the lifting legs 5, from under the table frame, so that the guide protrusions 362 on both sides are precisely aligned with the openings of the vertical grooves 3611 of the "┐"-shaped guide grooves 361 on the inner sidewalls of the two longitudinal beams 1. Then, the user lifts the motor box 4 vertically so that the guide protrusions 362 are fully inserted into the vertical grooves 3611. When the guide protrusions 362 rise to the top of the vertical grooves 3611 and the bottom of the motor box 4 contacts the support surface of the longitudinal beams 1, the user pushes the motor box 4 horizontally. The guide protrusions 362 then slide from the vertical grooves 3611 into the horizontal grooves 3612 and move along the horizontal grooves 3612 until they are stopped by the end of the horizontal grooves 3612. At this point, the motor box 4 reaches the final installation position preset in the design. The user rotates the wedge-shaped locking block 33 downwards, and the wedge-shaped locking block 33 wedges into the gradually narrowing wedge-shaped space formed between the inclined surface of the inclined baffle 31 and the motor box 4. When the wedge-shaped locking block 33 rotates to the horizontal position, the engaging component 34 engages with the locking groove 35, completing the locking of the wedge-shaped locking block 33.

[0135] like Figure 27 As shown, the wing assembly in this embodiment includes the following:

[0136] S21: Fit the side wing 7 to the end of the longitudinal beam 1, so that the first mounting hole 61 on the side wing 7 is aligned with the second mounting hole 62 at the end of the longitudinal beam 1;

[0137] S22: Insert the mounting pin 63 vertically, passing it through the first mounting hole 61 and the second mounting hole 62 in sequence;

[0138] S23: The lower end of the mounting pin 63 contacts and engages with the engagement cavity 643 in the middle of the "U"-shaped engagement piece 642, thus completing the installation of the side wing 7.

[0139] Specifically, the user attaches the inner surface of the side wing 7 to the end face of the longitudinal beam 1. At this time, the first mounting hole 61 on the side wing 7 is naturally aligned with the second mounting hole 62 on the end face of the longitudinal beam 1. The user holds the mounting pin 63, aligns its lower end with the aligned first and second mounting holes 62, and then inserts it vertically downward. Under slight pressure, the mounting pin 63 smoothly passes through the two layers of hole walls. As the mounting pin 63 continues to descend, its end is inserted into the outward opening 6423 of the "U"-shaped engaging part 642 located in the inner cavity of the longitudinal beam 1. Then, the user taps the side wing 7 from the outside in, and the mounting pin 63 is engaged into the engaging cavity 643, thus completing the installation of the side wing 7.

[0140] like Figure 28 As shown, the assembly of the support leg 9 and the lifting leg 5 in this embodiment includes the following:

[0141] S31. Align the support leg with the bottom of the lifting leg 5 initially, and pass the snap-fit ​​plate 81 fixed on the lifting leg 5 through the quick-release hole 82 on the support leg 9.

[0142] S32. The horizontal shaft 841 is snapped into the snap groove 83, and at the same time, the first limiting shaft 842 and the second limiting shaft 843 at both ends are located on the outside of the two snap plates 81.

[0143] S33. Rotate the locking element 85 and rotate the n-type snap-fit ​​shaft 84 clockwise until the locking element 85 and the support foot 9 reach the interference fit position;

[0144] S34. Continue to rotate by 2° to 4°, and the n-type snap-fit ​​shaft 84 is limited by the limiting boss 86, completing the installation of the support foot.

[0145] During installation, the wedge-shaped body 851 is inserted through the middle position of the snap-fit ​​horizontal shaft 841 on the n-type snap-fit ​​shaft 84, and the two are welded together to lock the wedge-shaped body 851 onto the n-type snap-fit ​​shaft 84, allowing the wedge-shaped body 851 to rotate with the n-type snap-fit ​​shaft 84. It should be further noted that the locking member 85 in this embodiment has a hexagonal hole 853 at its top. A hexagonal wrench is inserted into the hexagonal hole 853 at the top of the locking member 85, acting as a wrench to facilitate the rotation of the locking member 85.

[0146] It should be understood that the specific embodiments described above are for illustrative purposes only and are not intended to limit the scope of the invention. Obvious variations or modifications derived from the spirit of the invention are still within the protection scope of the invention.

Claims

1. A quick-mounting lifting table frame, characterized in that, The utility model relates to a quick -mounting type lifting platform, including: Two longitudinal beams arranged in parallel, a crossbeam fixedly connected with the two longitudinal beams, a motor box mounted on the longitudinal beam through a first quick -mounting mechanism, a lifting leg mounted on the motor box, a wing mounted on one end of the longitudinal beam through a second quick -mounting mechanism and a supporting leg mounted on the bottom of the lifting leg through a third quick -mounting mechanism; The first quick -mounting mechanism includes an inclined baffle arranged between the two longitudinal beams, a wedge-shaped locking block rotatably mounted on the inner side of the inclined baffle, a locking mechanism mounted on one end of the wedge-shaped locking block, a locking groove opened on the lower end surface of the longitudinal beam and matched with the locking mechanism and a guide assembly arranged on the inner side wall of the motor box and the corresponding longitudinal beam. The upper end surface of the inclined baffle is inclined towards the motor box, and the wedge-shaped locking block is adapted to the wedge-shaped space between the inclined baffle and the motor box.

2. The quick-mounting lifting table frame according to claim 1, characterized in that: The inclination angle of the upper end surface of the inclined baffle towards the motor box is 10°-15°.

3. The quick-mounting lifting table frame according to claim 1, characterized in that: One end of the wedge-shaped locking block is rotatably mounted on the inclined baffle, and the locking mechanism is arranged on the other end of the wedge-shaped locking block. When the wedge-shaped locking block is turned upwards and clamped into the wedge-shaped space, the wedge-shaped locking block will horizontally press the motor box away from the wedge-shaped locking block.

4. The quick-mounting lifting table frame according to claim 1, characterized in that: The locking mechanism includes a locking mounting bracket mounted on one end of the wedge-shaped locking block, a buckle assembly rotatably mounted on the front end of the locking mounting bracket, a "7" type unlocking lever rotatably mounted on the rear end of the locking mounting bracket and a through hole opened on the lower end surface of the locking mounting bracket. The upper end of the "7" type unlocking lever is pressed on the buckle assembly, and the lower end of the "7" type unlocking lever extends below the wedge-shaped locking block through the through hole. Pulling down the "7" type unlocking lever to unlock the buckle assembly and the locking groove.

5. The quick-mounting lifting table frame according to claim 4, characterized in that, The buckle assembly includes: A vertical mounting block rotatably mounted on the locking mounting bracket; A horizontal pressing rod fixedly arranged on the vertical mounting block and horizontally extending towards the through hole; A lock hook fixedly arranged on the upper end surface of the horizontal pressing rod and matched with the locking groove for insertion; A locking elastic member arranged between the horizontal pressing rod and the locking mounting bracket for providing elastic force to keep the lock hook clamped with the locking groove; In the locking state, the lock hook is clamped with the edge of the locking groove, and in the unlocking state, the "7" type unlocking lever is pulled down to drive the lock hook away from the edge of the locking groove.

6. The quick-mounting lifting table frame according to claim 4, characterized in that: The wedge-shaped locking block and the locking mounting bracket are made of plastic material and are integrally formed.

7. The quick-mounting lifting table frame according to claim 1, characterized in that, The guide assembly includes: At least two "┌" type guide grooves symmetrically opened on the side walls of the two longitudinal beams; A guide boss fixedly arranged on the outer side wall of the motor box; The guide boss is matched with the "┌" type guide groove, the "┌" type guide groove includes a vertical groove and a horizontal groove, and the guide boss enters from the vertical groove and is fixed at the end of the horizontal groove.

8. The quick-mounting lifting table frame according to claim 6, characterized in that, The second quick-installation mechanism includes a first mounting hole on the upper surface of the side wing, a second mounting hole on the longitudinal beam corresponding to the first mounting hole, a mounting pin passing through the first mounting hole and the second mounting hole, and a quick-installation assembly disposed at the end of the longitudinal beam. The quick-assembly component includes: The end cap is fixedly inserted into the end of the longitudinal beam. The "U"-shaped fastener is located inside the longitudinal beam and is fixedly connected to the abutment end cap via an "L"-shaped connector. The "U"-shaped locking component has a locking cavity in the middle that corresponds to the second mounting hole; In the installed state, the mounting pin passes through the first mounting hole and the second mounting hole from top to bottom and then engages into the engagement cavity.

9. The quick-mounting lifting table frame according to claim 8, characterized in that, The "U"-shaped locking component includes a connecting part, an arc-shaped locking part, and an outwardly folded opening connected in sequence; The connecting part is connected to the "L"-shaped connector; The arc-shaped engaging portion is used to engage and lock with the mounting pin; The outward-facing opening is used to guide the mounting pin into the arc-shaped engaging portion during installation.

10. The quick-mounting lifting table frame according to claim 8, characterized in that, The third quick-assembly mechanism includes: Two snap-fit ​​plates are symmetrically fixedly installed on the lower end face of the lifting leg; Two quick-mount holes are provided on the support foot, corresponding to the snap-fit ​​plate, for inserting the snap-fit ​​plate; Two card slots are provided on each of the card slot plates, and the openings of the two card slots face the same direction. The n-type snap-fit ​​shaft has two ends that are detachably snap-fitted into the two snap-fit ​​slots respectively; A locking element is fixedly installed in the middle part of the n-type snap-fit ​​shaft; In the installed state, the snap-fit ​​plate passes through the quick-release hole, and the two ends of the n-type snap-fit ​​shaft are snapped into the corresponding snap-fit ​​grooves. The n-type snap-fit ​​shaft is rotated clockwise until the locking member abuts and locks against the support foot.

11. The quick-mounting lift table frame according to claim 10, wherein, The n-type snap-fit ​​shaft includes a middle snap-fit ​​horizontal shaft, a first limiting shaft and a second limiting shaft fixedly disposed at both ends of the snap-fit ​​horizontal shaft; Both the first limiting axis and the second limiting axis are perpendicular to the locking horizontal axis.

12. A quick-mounting method of a quick-mounting type lifting table frame, characterized by, The quick-assembly height-adjustable table frame as described in claim 11 includes the following: Assemble the motor box and longitudinal beam; Side mounting; And, the assembly of the support legs; There is no fixed order among the three steps: assembling the motor box and longitudinal beam, installing the side wings, and assembling the support legs.

13. The quick-assembly method of claim 12, wherein, The assembly of the motor box and the longitudinal beam includes the following: The crossbeams are fixedly connected between the two longitudinal beams to form the main frame; The lifting leg with the motor box is inserted from below the main frame, and the guide boss is aligned with the vertical groove of the "┐"-shaped guide groove on the inner side wall of the longitudinal beam; The motor box is pushed along the horizontal groove of the "┐"-shaped guide groove, causing the guide boss to slide to the end of the horizontal groove, thus completing the initial positioning and guidance of the motor box; Rotate the wedge-shaped locking block upwards so that it wedges into the wedge-shaped space between the inclined surface of the inclined baffle and the end of the motor box; When the wedge-shaped locking block rotates to the horizontal position, the latching assembly engages with the locking groove.

14. The quick-assembly method of claim 12, wherein, The wing assembly includes the following: Fit the side wing to the end of the longitudinal beam, aligning the first mounting hole on the side wing with the second mounting hole at the end of the longitudinal beam; Insert the mounting pin vertically, passing it through the first mounting hole and the second mounting hole in sequence; The lower end of the mounting pin contacts and engages with the engagement cavity in the middle of the "U"-shaped engagement piece, thus completing the installation of the side wing.

15. The quick-assembly method of claim 12, wherein, The support leg assembly includes the following: The support leg assembly includes the following: Align the support foot with the bottom of the lifting leg, and pass the snap-fit ​​plate fixed on the lifting leg through the quick-release hole on the support foot; The horizontal shaft is snapped into the snap-fit ​​groove, while the first and second limiting shafts at both ends are located on the outside of the two snap-fit ​​plates. Rotate the locking element and rotate the n-type locking shaft clockwise until the locking element and the support foot reach the interference fit position. Continue rotating by another 2° to 4°, and the n-type snap-fit ​​shaft will be limited by the limiting boss, completing the installation of the support foot.

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