Work stool capable of being quickly unfolded and folded

Abstract

The utility model discloses a quick unfolding and folding work stool which comprises a work stool body, and a foot rod seat rotationally connected with the work stool body is arranged in the work stool body; two foot rod bodies hinged to the foot rod base are arranged on the foot rod base, and a connecting rod assembly is arranged between the two foot rod bodies; a sliding groove and a limiting groove are formed in the foot rod seat, and a toggle switch assembly is arranged on the working stool body; the toggle switch assembly comprises a tension spring, a limiting pin and a switch body, and the switch body is hinged to the working stool body; a first pin shaft is arranged between the working stool body and the foot rod seat, and the tension spring is arranged between the first pin shaft and the limiting pin; the limiting pin simultaneously penetrates through the working stool body, the foot rod seat and the switch body, and the limiting pin slides relative to the foot rod seat when the switch body is rotated; and the working stool body is also provided with a lock catch assembly for unfolding the foot rod body. The foot rod body in the folded state is locked through the toggle switch assembly, and the foot rod body is automatically locked through the lock catch assembly; the foot rod body is high in unfolding and folding speed and easy to operate.

Description

Technical Field

[0001] The utility model belongs to the field of work benches, and in particular relates to a fast-expanding and folding work bench. Background Art

[0002] A sawhorse is an auxiliary tool used to support wood during sawing. Conventional sawhorses typically consist of a workbench with four hinged legs located below the workbench. The legs can be unfolded and folded relative to the workbench, making them easy to carry. To ensure the workbench's stability when unfolded, hinged links are provided between the legs and the workbench, which are locked by the links and sliding catches. When the legs are folded relative to the workbench, latches are often used to secure the legs in their folded position. Because of the links, each time the legs are unfolded, they must first be unlocked with the latch, then unfolded, and finally rotated and secured with the sliding catch. This slows the unfolding process. Furthermore, when folding the legs, the operator must unlock them with the sliding latch, then rotate the links to separate them from the workbench. Finally, the operator must rotate the legs before the latches can secure them. Consequently, conventional sawhorses are slow to unfold and fold, cumbersome to operate, and result in a poor user experience. Therefore, it is necessary to design a fast unfolding folding workbench to overcome the above difficulties. Summary of the Invention

[0003] The utility model aims at the problems existing in the prior art and designs a fast unfolding and folding work stool. The utility model locks the foot rod body by toggling a switch assembly. When folding the foot rod body, the work stool body is placed in the opposite direction and the switch body is toggled. After the foot rod body is lightly pushed, the foot rod body is automatically folded and automatically locked by the lock assembly. When unfolding the foot rod body, the lock assembly is opened and the work stool is placed forward. The foot rod body is automatically unfolded under the action of gravity and an assist spring and is automatically locked by the toggle switch assembly. The foot rod body is quickly unfolded and folded and is easy to operate.

[0004] The inventive objective of the utility model is achieved through the following technical solutions: a quickly unfolded and foldable workbench, comprising a workbench body, wherein both ends of the workbench body are respectively provided with foot rod seats rotatably connected thereto; each of the foot rod seats is provided with two foot rod bodies hinged thereto, and a connecting rod assembly hingedly connecting the two foot rod bodies is provided between the two foot rod bodies, and the connecting rod assembly includes a power assist spring; the foot rod seat is provided with a sliding groove and a limit groove that are interconnected, and the workbench body is provided with a toggle switch assembly for folding the foot rod body; the toggle switch assembly includes a tension spring, a limit pin and a switch body, and the switch body is hinged to the workbench body; a first pin shaft is provided between the workbench body and the foot rod seat, and the tension spring is arranged between the first pin shaft and the limit pin; the limit pin simultaneously passes through the workbench body, the foot rod seat and the switch body, and when the switch body is rotated, the limit pin slides relative to the foot rod seat; the workbench body is also provided with a lock assembly for unfolding the foot rod body, and the lock assembly includes an elastic button.

[0005] Preferably, the workbench body is provided with a first through hole for inserting a limit pin, and the switch body is provided with a second through hole for inserting a limit pin; a second pin shaft is provided between the switch body and the workbench body to hinge the two, and the limit pin is inserted into the first through hole and the second through hole at the same time; one end of the tension spring is hooked on the limit pin, and the other end of the tension spring is hooked on the first pin shaft; the first through hole is a waist-shaped hole, and the axial direction of the first through hole is perpendicular to the upper end face of the workbench body; in the default state, the limit pin is arranged at the bottom end of the first through hole and is synchronously arranged in the limit groove. When the switch body is rotated, the switch body drives the limit pin to move from the limit groove to the sliding groove.

[0006] When the foot bar body is in the unfolded state, the limit pin is at the bottom of the first through hole and the limit pin is in the limit slot of the foot bar seat; at this time, the tension spring is in the stretched state, and the limit pin is stably stuck in the limit slot, so that the foot bar seat cannot rotate relative to the workbench body; at the same time, the connecting rod assembly is in the unfolded state, so that the foot bar body can be stably in the unfolded state. When the foot bar body needs to be folded, the workbench body is first placed upside down in the opposite direction, and the upper end surface of the workbench body is placed in contact with the ground; then the switch body is rotated, and the rotation of the switch body drives the limit pin to move along the second through hole. The limit pin also moves in the first through hole and from the limit slot into the slide slot; at this time, the foot bar seat loses the limit of the limit pin and can rotate relative to the workbench body; when the foot bar seat rotates, the slide slot in the foot bar seat rotates relative to the limit pin. Since the workbench body is inverted at this time, the foot bar body rotates rapidly under the action of gravity and is placed in contact with the workbench body, and then the foot bar body is automatically locked by the locking assembly. When the foot bar body needs to be unfolded, the workbench body is placed upright and the elastic button is pressed. The foot bar body automatically unfolds under the action of gravity. The elastic force of the auxiliary spring accelerates the unfolding of the foot bar body. During the unfolding process, the foot bar base rotates relative to the limit pin, and the limit pin automatically slides from the slide groove into the limit groove. It is then tightened by the tension spring, so that the foot bar body can be stably unfolded.

[0007] Preferably, the workbench body is provided with a foot rod seat that can rotate relative to the workbench body, and the foot rod seat includes two mounting plates arranged parallel to each other, and the end face of the switch body and the end face of the mounting plate are arranged parallel to each other; the slide groove is an arc-shaped groove, and the limit groove is a U-shaped groove, and the slide groove and the limit groove are connected to each other; the slide groove and the limit groove have the same width, the limit pin is cylindrical, and the outer diameter of the limit pin is adapted to the width of the slide groove or the width of the limit groove; the workbench body is provided with a limiting protrusion for limiting the rotation of the foot rod body, and when the foot rod body is in a folded state, the edge of the foot rod seat and the limiting protrusion are arranged to fit each other.

[0008] The widths of the chute and the limit slot are the same, and the limit pin is cylindrical. The outer diameter of the limit pin matches the width of the chute or the limit slot, so that the limit pin can move stably within the chute and the limit slot. By providing a limit protrusion, the foot bar body and the work stool body are prevented from being too close together. When the foot bar body is folded into place, a gap is left between the foot bar body and the work stool body. This prevents the limit pin from impacting and wearing the end of the chute, and the chute as a whole will not be deformed. As a result, the movement trajectory of the limit pin relative to the chute will not deviate.

[0009] Preferably, a retaining spring is provided at the end of the limit pin and is detachably connected thereto; the limit pin is arranged higher than the first pin shaft, and the second pin shaft is arranged higher than the first pin shaft. By providing the retaining spring, the limit pin is prevented from being disengaged from the first through hole of the workbench body.

[0010] Preferably, each mounting plate is provided with interconnected slides and limit slots, with the slides on the two mounting plates aligned and the limit slots on the two mounting plates aligned. The side arms of the switch body are disposed between the inner wall of the workbench body and the mounting plates, with the switch body positioned adjacent to the inner wall of the workbench body. The provision of two mounting plates enhances the overall structural strength of the footrest. Furthermore, the slides and limit slots are arranged in pairs, ensuring that both ends of the limit pin are always perpendicular to the mounting plates of the footrest. This ensures smooth movement of the limit pin and prevents jamming when the footrest rotates relative to the limit pin.

[0011] Preferably, the lock assembly also includes a mounting cover, a first screw, a first nut and a reset spring; the elastic button is arranged between the mounting cover and the inner wall of the workbench body, and the mounting cover is fixedly mounted on the workbench body by the first screw and the first nut; the elastic button is rotatably connected to the mounting cover, a pressing portion is provided on the top of the elastic button, and a lock hook is provided on the bottom of the elastic button; a reset spring is provided between the elastic button and the inner wall of the workbench body, and the reset spring is arranged close to the lock hook.

[0012] When the foot bar body is in the unfolded state, the return spring is compressed, and the lock hook of the elastic button moves away from the inner wall of the workbench body. When the foot bar body switches from the unfolded state to the folded state, the foot bar body rotates toward the lock hook. When the foot bar body contacts the inclined surface of the lock hook, the foot bar body automatically pushes the lock hook, and the foot bar body is then locked by the lock hook. At this time, the return spring is further compressed, and the lock hook can reliably lock the foot bar body, and the foot bar body can be stably folded. When the foot bar body switches from the folded state to the unfolded state, the workbench body is placed upright and the pressing portion of the elastic button is pressed inward, causing the pressing portion to move toward the inside of the workbench body. Because the elastic button is rotatably connected to the mounting cover, when the pressing portion is squeezed, the lock hook overcomes the elastic force of the return spring and moves toward the outside of the workbench body. In this way, the lock hook automatically moves away from the foot bar body, and the foot bar body automatically unfolds under the action of gravity.

[0013] Preferably, the elastic button is provided with a rotating shaft for pivotally mounting the cover body, and the rotating shaft is higher than the reset spring; a columnar protrusion is provided on the inner wall of the workbench body, and the elastic button is provided with a mounting groove for placing the reset spring; one end of the reset spring is sleeved and mounted on the columnar protrusion, and the other end of the reset spring rests in the mounting groove; the lock components are arranged in pairs on both sides of the workbench body, the pressing part is arranged close to the top of the workbench body, and the lock hook is arranged to pass through the bottom of the mounting cover body.

[0014] By setting the rotating shaft, the elastic button can be reliably rotated relative to the mounting cover. The return spring is limited by the columnar protrusion and the mounting groove to prevent the return spring from detaching from the mounting cover, so that the return spring can stably generate elastic force.

[0015] Preferably, a third pin is provided between the foot rod seat and the foot rod body for hingedly connecting the two, and the third pin is arranged perpendicular to the first pin; when the foot rod body on the workbench body is unfolded and placed, the first pin is arranged higher than the third pin; the connecting rod assembly also includes connecting rod bodies arranged in pairs, and a fourth pin is provided between the two connecting rod bodies for hingedly connecting the two; the end of each connecting rod body is hinged to the foot rod body arranged adjacent to it; and a booster spring is provided between the two connecting rod bodies.

[0016] By hingedly connecting the connecting rod body to the foot rod body, the foot rod body is supported by the connecting rod body when deployed, making the deployed state of the foot rod body more stable and reliable. By providing a booster spring, the two connecting rod bodies are pulled by the booster spring when they are deployed to the same axis, thus preventing relative rotation of the two connecting rod bodies. The connecting rod assembly can be deployed reliably, thus keeping the foot rod body in a stable deployed state. When the two foot rod bodies are folded together, the two connecting rod bodies rotate and are no longer aligned on the same axis. Then, the booster spring pulls the two connecting rod bodies to quickly fold together.

[0017] Preferably, each connecting rod body is provided with a mounting shaft for installing a booster spring, and the end of the booster spring is hooked on the mounting shaft; when the two foot rod bodies are unfolded from each other, the two connecting rod bodies are on the same axis, and when the two connecting rod bodies are on the same axis, the booster spring is set higher than the fourth pin shaft.

[0018] Preferably, both sides of the workbench body are provided with mounting brackets fixedly connected thereto, and each mounting bracket is provided with a wood positioning bracket assembly that can slide left and right relative to it, and the wood positioning bracket assembly includes a clamping block, a locking knob, a spacer, a partition, a carriage bolt, a first spring and a pressing piece; the mounting bracket is provided with a strip hole for mounting the carriage bolt, the carriage bolt is inserted into the strip hole, and the locking knob is threadedly connected to the carriage bolt; the partition, the first spring and the pressing piece are sequentially sleeved and installed on the carriage bolt; the partition and the mounting bracket are connected to each other. A spacer is provided between the inner walls, and a second screw and a second nut are provided between the partition and the installation to fix the two. The second screw passes through the clamping block, the strip hole, the spacer and the partition in sequence, and the end of the second screw is threadedly connected to the second nut; the first spring is arranged between the partition and the clamping plate, one end of the first spring rests in the groove of the partition, and the other end of the first spring rests on the clamping plate; the end of the clamping block facing away from the locking knob is slidably connected to the mounting bracket, the strip holes are arranged in pairs, and a sliding screw is provided between the end of the clamping block facing away from the locking knob and the strip hole.

[0019] The wood positioning frame assembly can slide left and right relative to the mounting bracket, allowing wood strips of varying thicknesses to be placed in the groove formed between the wood positioning frame assembly and the workbench body. Two workbench units are placed side by side, with the wood strips positioned in the groove between the wood positioning frame assembly and the workbench body. A whole wood board is then placed on the upper end surfaces of the two workbench bodies. This allows the workbench to serve as a support, allowing the operator to work on the wood board. Multiple workbench units can be placed side by side and joined together. When used alone, the workbench is often used to cut wood strips, requiring the wood positioning frame assembly to clamp and position the strips. Turning the locking knob moves the carriage bolt away from the spacer, and the locking knob away from the outer wall of the clamp block, allowing the clamp block to slide along the strip-shaped hole relative to the mounting bracket. A first spring between the spacer and the pressure plate ensures that the spacer is always in contact with the inner wall of the mounting bracket. When the locking knob is loosened, the spacer rests against the mounting bracket, preventing the clamp block from sliding significantly between them and facilitating adjustment of the clamp block's sliding distance.

[0020] Compared to the prior art, the present invention offers the following advantages: The present invention conveniently controls the folding of the footrest body through a toggle switch assembly. Turning the switch body automatically moves the limit pin from the limit slot into the slide slot, allowing the footrest base to rotate relative to the workbench body. First, place the workbench body upside down, then turn the switch body and gently push the footrest body. The footrest body automatically folds under the action of gravity and is automatically locked by the elastic button on the lock assembly. When the footrest body is in the unfolded state, the limit pin engages the limit slot and is pulled by the tension spring, thus maintaining the footrest body in the unfolded state. Furthermore, when the footrest body switches from the unfolded state to the folded state, the two footrest bodies rotate toward each other. The auxiliary spring automatically and rapidly brings the two footrest bodies together, accelerating the folding speed of the footrest body. When the footrest body switches from the folded state to the unfolded state, pressing the elastic button automatically unfolds the footrest body under the action of gravity and automatically locks it by turning the toggle switch assembly. This allows for a fast unfolding process and automatic locking of the footrest body without requiring additional operation. Therefore, the foot rod body of the utility model can be quickly unfolded and folded, the operation is simple and reliable, and the user experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 It is a bottom view of the utility model;

[0023] Figure 3 It is a side view of the utility model in an inverted state;

[0024] Figure 4 for Figure 3 The cross-sectional view taken from AA in the figure;

[0025] Figure 5 for Figure 4 Schematic diagram after opening the switch body;

[0026] Figure 6 for Figure 5 A partial enlarged view of the middle C position;

[0027] Figure 7 This is a diagram of the internal structure of the foot bar body of the utility model when it is folded;

[0028] Figure 8 This is a side view of the foot bar body of the utility model when it is folded;

[0029] Figure 9 for Figure 8 The cross-sectional view taken from BB;

[0030] Figure 10 This is a diagram of the internal structure of the foot rod body of the utility model during the unfolding process;

[0031] Figure 11 Figure 1 is the internal structure diagram of the connecting rod assembly;

[0032] Figure 12 This is an exploded view of the lock assembly;

[0033] Figure 13 Exploded view of the wood spacer assembly.

[0034] Markings in the figure: 1. Workbench body; 2. Foot rod base; 21. Slide groove; 22. Limiting groove; 23. Mounting plate; 3. Foot rod body; 4. Connecting rod assembly; 41. Assist spring; 42. Connecting rod body; 43. Fourth pin; 44. Mounting shaft; 5. Toggle switch assembly; 51. Tension spring; 52. Limiting pin; 53. Switch body; 531. Second through hole; 6. First pin; 7. Locking assembly; 71. Elastic button; 72. First screw; 73. First nut; 74. Return spring; 75. Press part; 76, locking hook; 77, rotating shaft; 78, mounting groove; 79, mounting cover; 8, first through hole; 9, wood positioning frame assembly; 91, clamping block; 92, locking knob; 93, spacer; 94, partition; 95, carriage bolt; 96, first spring; 97, pressing plate; 98, second screw; 99, second nut; 910, sliding screw; 10, second pin; 11, limiting protrusion; 12, retaining spring; 13, columnar protrusion; 14, third pin; 15, mounting bracket; 16, strip hole. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0036] like Figures 1 to 13 As shown, this embodiment discloses a fast unfolding folding work stool, comprising a work stool body 1, wherein both ends of the work stool body 1 are provided with foot rod seats 2 rotatably connected thereto; each of the foot rod seats 2 is provided with two foot rod bodies 3 hinged thereto, and a connecting rod assembly 4 is provided between the two foot rod bodies 3 to hinge the two, and the connecting rod assembly 4 includes a power assist spring 41; the foot rod seats 2 are provided with mutually communicating slide grooves 21 and limit grooves 22, and the work stool body 1 is provided with a toggle switch assembly 5 for folding the foot rod bodies 3; the toggle switch assembly 5 is provided to enable the foot rod bodies 3 to be folded. The switch assembly 5 includes a tension spring 51, a limit pin 52 and a switch body 53, and the switch body 53 is hinged to the workbench body 1; a first pin shaft 6 is provided between the workbench body 1 and the foot rod seat 2, and the tension spring 51 is arranged between the first pin shaft 6 and the limit pin 52; the limit pin 52 passes through the workbench body 1, the foot rod seat 2 and the switch body 53 at the same time, and when the switch body 53 is rotated, the limit pin 52 slides relative to the foot rod seat 2; the workbench body 1 is also provided with a lock assembly 7 for unfolding the foot rod body 3, and the lock assembly 7 includes an elastic button 71.

[0037] The workbench body 1 is provided with a first through hole 8 for inserting the limit pin 52, and the switch body 53 is provided with a second through hole 531 for inserting the limit pin 52; a second pin shaft 10 is provided between the switch body 53 and the workbench body 1 to hinge the two, and the limit pin 52 is inserted into the first through hole 8 and the second through hole 531 at the same time; one end of the tension spring 51 is hooked on the limit pin 52, and the other end of the tension spring 51 is hooked on the first pin shaft 6; the first through hole 8 is a waist-shaped hole, and the axial direction of the first through hole 8 is perpendicular to the upper end face of the workbench body 1; in the default state, the limit pin 52 is set at the bottom end of the first through hole 8 and is synchronously set in the limit groove 22. When the switch body 53 is rotated, the switch body 53 drives the limit pin 52 to move from the limit groove 22 to the slide groove 21. The workbench body 1 is provided with a footrest 2 that can rotate relative to the workbench body 1. The footrest 2 includes two parallel mounting plates 23. The end faces of the switch body 53 and the mounting plates 23 are parallel to each other. The chute 21 is an arc-shaped groove, and the limit groove 22 is a U-shaped groove. The chute 21 and the limit groove 22 are interconnected. The chute 21 and the limit groove 22 have the same width. The limit pin 52 is cylindrical, and the outer diameter of the limit pin 52 matches the width of the chute 21 or the width of the limit groove 22. The workbench body 1 is provided with a limit protrusion 11 that limits the rotation of the footrest 3. When the footrest 3 is in the folded state, the edge of the footrest 2 and the limit protrusion 11 are arranged to abut against each other. The end of the limit pin 52 is provided with a detachable retaining spring 12. The limit pin 52 is arranged higher than the first pin 6, and the second pin 10 is arranged higher than the first pin 6. Each mounting plate 23 is provided with a slide groove 21 and a limit groove 22 that are interconnected, the slide grooves 21 on the two mounting plates 23 are aligned, and the limit grooves 22 on the two mounting plates 23 are aligned; the side arms of the switch body 53 are arranged between the inner wall of the workbench body 1 and the mounting plate 23, and the switch body 53 is arranged adjacent to the inner wall of the workbench body 1.

[0038] The lock assembly 7 also includes a mounting cover 79, a first screw 72, a first nut 73 and a return spring 74; the elastic button 71 is arranged between the mounting cover 79 and the inner wall of the workbench body 1, and the mounting cover 79 is fixedly mounted on the workbench body 1 by the first screw 72 and the first nut 73; the elastic button 71 is rotatably connected to the mounting cover 79, the top of the elastic button 71 is provided with a pressing portion 75, and the bottom of the elastic button 71 is provided with a lock hook 76; a return spring 74 is provided between the elastic button 71 and the inner wall of the workbench body 1, and the return spring 74 is arranged close to the lock hook 76. The elastic button 71 is provided with a rotating shaft 77 for pivotally mounting a cover body 79, and the rotating shaft 77 is arranged higher than the reset spring 74; a columnar protrusion 13 is provided on the inner wall of the workbench body 1, and the elastic button 71 is provided with a mounting groove 78 for placing the reset spring 74; one end of the reset spring 74 is sleeved and mounted on the columnar protrusion 13, and the other end of the reset spring 74 rests on the mounting groove 78; the lock assembly 7 is arranged in pairs on both sides of the workbench body 1, the pressing portion 75 is arranged near the top of the workbench body 1, and the lock hook 76 is arranged to pass through the bottom of the mounting cover body 79.

[0039] A third pin 14 is provided between the foot bar seat 2 and the foot bar body 3 to connect the two, and the third pin 14 is arranged perpendicular to the first pin 6. When the foot bar body 3 on the workbench body 1 is unfolded and placed, the first pin 6 is arranged higher than the third pin 14. The connecting rod assembly 4 also includes a pair of connecting rod bodies 42, and a fourth pin 43 is provided between the two connecting rod bodies 42 to connect the two. The end of each connecting rod body 42 is hinged to the adjacent foot bar body 3. A booster spring 41 is provided between the two connecting rod bodies 42. Each connecting rod body 42 is provided with a mounting shaft 44 for mounting the booster spring 41, and the end of the booster spring 41 is hooked on the mounting shaft 44. When the two foot bar bodies 3 are unfolded, the two connecting rod bodies 42 are on the same axis. When the two connecting rod bodies 42 are on the same axis, the booster spring 41 is arranged higher than the fourth pin 43.

[0040] Both sides of the workbench body 1 are respectively provided with mounting brackets 15 fixedly connected thereto, and each mounting bracket 15 is provided with a wood positioning frame assembly 9 that can slide left and right relative to it, and the wood positioning frame assembly 9 includes a clamping block 91, a locking knob 92, a spacer 93, a partition 94, a carriage bolt 95, a first spring 96 and a pressing piece 97; the mounting bracket 15 is provided with a strip hole 16 for mounting the carriage bolt 95, the carriage bolt 95 is inserted into the strip hole 16, and the locking knob 92 is threadedly connected to the carriage bolt 95; the partition 94, the first spring 96 and the pressing piece 97 are sequentially sleeved and installed on the carriage bolt 95; a spacer 94 is provided between the partition 94 and the inner wall of the mounting bracket 15 There is a spacer sleeve 93, and a second screw 98 and a second nut 99 are provided between the partition 94 and the installation to fix the two. The second screw 98 passes through the clamp 91, the strip hole 16, the spacer sleeve 93 and the partition 94 in sequence, and the end of the second screw 98 is threadedly connected to the second nut 99; the first spring 96 is arranged between the partition 94 and the clamping plate 97, one end of the first spring 96 rests in the groove of the partition 94, and the other end of the first spring 96 rests on the clamping plate 97; the end of the clamp 91 facing away from the locking knob 92 is slidably connected to the mounting bracket 15, and the strip holes 16 are arranged in pairs, and a sliding screw 910 is provided between the end of the clamp 91 facing away from the locking knob 92 and the strip hole 16.

[0041] The specific operation process of this embodiment is as follows: in the default state, the foot rod body 3 is in the expanded state; when the foot rod body 3 is in the expanded state, the limit pin 52 is at the bottom of the first through hole 8 and the limit pin 8 is in the limit groove 22 of the foot rod seat 2; at this time, the tension spring 51 is in a stretched state, and the limit pin 52 is stably stuck in the limit groove 22, so that the foot rod seat 2 cannot rotate relative to the workbench body 1; at the same time, the connecting rod assembly 4 is in the expanded state, so that the foot rod body 3 can be stably in the expanded state. When the footrest 3 needs to be folded, the workbench body 1 is first placed upside down, with the upper end surface of the workbench body 1 flush with the ground. The switch body 53 is then rotated. This rotation drives the limit pin 52 along the second through hole 531, which simultaneously moves within the first through hole 8 and from the limit slot 22 into the slide slot 21. The footrest 2 now loses its positional restraint by the limit pin 52, allowing the footrest 2 to rotate relative to the workbench body 1. As the footrest 2 rotates, the slide slot 21 within the footrest 2 rotates relative to the limit pin 52. Since the workbench body 1 is now inverted, the footrest 3 rapidly rotates under the action of gravity and is flush with the workbench body 1. The footrest 3 is then automatically locked by the locking assembly 7. When the footrest 3 needs to be unfolded, the workbench body 1 is placed forward, and the elastic button 71 is pressed. The footrest 3 automatically unfolds under the action of gravity, with the elastic force of the assist spring 41 accelerating the unfolding of the footrest 3. During the unfolding of the foot bar body 3, the foot bar seat 2 rotates relative to the limit pin 52, and the limit pin 52 automatically slides from the slide groove 21 into the limit slot 22, and is then tightened by the tension spring 51, so that the foot bar body 3 can be stably in the unfolded state.

[0042] The specific working principle of the locking assembly 7 is as follows: when the foot rod body 3 is in the expanded state, the return spring 74 is in a compressed state, and the locking hook 76 of the elastic button 71 is away from the inner wall of the workbench body 1; when the foot rod body 3 switches from the expanded state to the folded state, the foot rod body 3 rotates close to the locking hook 76; when the foot rod body 3 contacts the inclined surface of the locking hook 76, the foot rod body 3 automatically pushes the locking hook 76, and then the foot rod body 3 is stuck by the locking hook 76; at this time, the return spring is in a further compressed state 74, and the locking hook 76 can reliably clamp the foot rod body 3, and the foot rod body 3 can be stably in the folded state. When the foot bar body 3 is switched from the folded state to the unfolded state, the workbench body 1 is placed upright and the pressing portion 75 of the elastic button 71 is pressed inward at the same time, and the pressing portion 75 moves toward the inside of the workbench body 1; since the elastic button 71 is rotatably connected to the mounting cover 79, when the pressing portion 75 is squeezed, the lock hook 76 overcomes the elastic force of the return spring 74 and moves toward the outside of the workbench body 1, so that the lock hook 76 automatically moves away from the foot bar body 3, and the foot bar body 3 automatically unfolds under the action of gravity.

[0043] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A fast unfolding folding workbench, comprising a workbench body (1), characterized in that: The work bench body (1) is provided with foot rod seats (2) rotatably connected thereto at both ends; each foot rod seat (2) is provided with two foot rod bodies (3) hinged thereto; a connecting rod assembly (4) is provided between the two foot rod bodies (3) to hinge the two, and the connecting rod assembly (4) includes a booster spring (41); the foot rod seat (2) is provided with a slide groove (21) and a limit groove (22) that are interconnected; the work bench body (1) is provided with a toggle switch assembly (5) for folding the foot rod body (3); the toggle switch assembly (5) includes a tension spring (51), a limit pin (52) and a switch The workbench body (53) is hingedly connected to the switch body (53) and the workbench body (1); a first pin shaft (6) is provided between the workbench body (1) and the foot rod seat (2); a tension spring (51) is provided between the first pin shaft (6) and the limit pin (52); the limit pin (52) simultaneously penetrates the workbench body (1), the foot rod seat (2) and the switch body (53); when the switch body (53) is rotated, the limit pin (52) slides relative to the foot rod seat (2); the workbench body (1) is also provided with a lock assembly (7) for unfolding the foot rod body (3), and the lock assembly (7) includes an elastic button (71).

2. The fast unfolding folding workbench according to claim 1, characterized in that: The workbench body (1) is provided with a first through hole (8) for inserting a limit pin (52), and the switch body (53) is provided with a second through hole (531) for inserting the limit pin (52); a second pin shaft (10) is provided between the switch body (53) and the workbench body (1) to hinge the two, and the limit pin (52) is inserted into the first through hole (8) and the second through hole (531) at the same time; one end of the tension spring (51) is hooked on the limit pin (52), and the other end of the tension spring (51) is hooked on the first pin shaft (6); the first through hole (8) is a waist-shaped hole, and the axial direction of the first through hole (8) is perpendicular to the upper end surface of the workbench body (1); in a default state, the limit pin (52) is arranged at the bottom end of the first through hole (8) and is synchronously arranged in the limit groove (22), and when the switch body (53) is rotated, the switch body (53) drives the limit pin (52) to move from the limit groove (22) to the slide groove (21).

3. The fast unfolding folding workbench according to claim 2, characterized in that: The work bench body (1) is provided with a foot rod seat (2) which can rotate relative to the work bench body, the foot rod seat (2) comprises two mounting plates (23) arranged parallel to each other, the end surface of the switch body (53) and the end surface of the mounting plate (23) are arranged parallel to each other; the slide groove (21) is an arc-shaped groove, the limit groove (22) is a U-shaped groove, the slide groove (21) and the limit groove (22) are connected to each other; the slide groove (21) and the limit groove (22) have the same width, the limit pin (52) is cylindrical, and the outer diameter of the limit pin (52) is adapted to the width of the slide groove (21) or the width of the limit groove (22); the work bench body (1) is provided with a limit protrusion (11) for limiting the rotation of the foot rod body (3), and when the foot rod body (3) is in a folded state, the edge of the foot rod seat (2) and the limit protrusion (11) are arranged to fit each other.

4. The fast unfolding folding workbench according to claim 2, characterized in that: The end of the limit pin (52) is provided with a retaining spring (12) detachably connected thereto; the limit pin (52) is arranged higher than the first pin shaft (6), and the second pin shaft (10) is arranged higher than the first pin shaft (6).

5. The fast unfolding folding workbench according to claim 3, characterized in that: Each of the mounting plates (23) is provided with a slide groove (21) and a limit groove (22) which are interconnected, the slide grooves (21) on the two mounting plates (23) are aligned, and the limit grooves (22) on the two mounting plates (23) are aligned; the side arm of the switch body (53) is arranged between the inner wall of the workbench body (1) and the mounting plate (23), and the switch body (53) is arranged adjacent to the inner wall of the workbench body (1).

6. The fast unfolding folding workbench according to claim 1, characterized in that: The lock assembly (7) further comprises a mounting cover (79), a first screw (72), a first nut (73) and a return spring (74); the elastic button (71) is arranged between the mounting cover (79) and the inner wall of the work bench body (1), and the mounting cover (79) is fixedly mounted on the work bench body (1) by means of the first screw (72) and the first nut (73); the elastic button (71) is rotatably connected to the mounting cover (79), a pressing portion (75) is provided at the top of the elastic button (71), and a locking hook (76) is provided at the bottom of the elastic button (71); a return spring (74) is provided between the elastic button (71) and the inner wall of the work bench body (1), and the return spring (74) is arranged close to the locking hook (76).

7. The fast unfolding folding workbench according to claim 6, characterized in that: The elastic button (71) is provided with a rotating shaft (77) for pivotally connecting the mounting cover body (79), and the rotating shaft (77) is arranged higher than the reset spring (74); a columnar protrusion (13) is provided on the inner wall of the work bench body (1), and a mounting groove (78) for placing the reset spring (74) is provided on the elastic button (71); one end of the reset spring (74) is sleeved and mounted on the columnar protrusion (13), and the other end of the reset spring (74) abuts against the mounting groove (78); the locking components (7) are arranged in pairs on both sides of the work bench body (1), the pressing portion (75) is arranged close to the top of the work bench body (1), and the locking hook (76) is arranged to pass through the bottom of the mounting cover body (79).

8. The fast unfolding folding workbench according to claim 1, characterized in that: A third pin (14) is provided between the foot rod seat (2) and the foot rod body (3) for hingedly connecting the two, and the third pin (14) and the first pin (6) are arranged perpendicular to each other; when the foot rod body (3) on the work bench body (1) is unfolded and placed, the first pin (6) is arranged higher than the third pin (14); the connecting rod assembly (4) also includes connecting rod bodies (42) arranged in pairs, and a fourth pin (43) is provided between the two connecting rod bodies (42) for hingedly connecting the two; the end of each connecting rod body (42) is hingedly connected to the foot rod body (3) arranged adjacent to it; and a booster spring (41) is provided between the two connecting rod bodies (42).

9. The fast unfolding folding workbench according to claim 8, characterized in that: Each connecting rod body (42) is provided with a mounting shaft (44) for mounting a booster spring (41), and the end of the booster spring (41) is hooked on the mounting shaft (44); when the two foot rod bodies (3) are unfolded from each other, the two connecting rod bodies (42) are on the same axis, and when the two connecting rod bodies (42) are on the same axis, the booster spring (41) is arranged higher than the fourth pin shaft (43).

10. The fast unfolding folding workbench according to claim 1, characterized in that: The workbench body (1) is provided with mounting brackets (15) fixedly connected thereto on both sides, and each mounting bracket (15) is provided with a wooden positioning frame assembly (9) capable of sliding left and right relative thereto, and the wooden positioning frame assembly (9) comprises a clamping block (91), a locking knob (92), a spacer (93), a partition (94), a carriage bolt (95), a first spring (96) and a pressing plate (97); the mounting bracket (15) is provided with a strip hole (16) for mounting the carriage bolt (95), the carriage bolt (95) is inserted into the strip hole (16), and the locking knob (92) is threadedly connected to the carriage bolt (95); the partition (94), the first spring (96) and the pressing plate (97) are sequentially sleeved and mounted on the carriage bolt (95); a spacer (94) and an inner wall of the mounting bracket (15) are provided The spacer (93) is provided with a second screw (98) and a second nut (99) for fixing the spacer (94) and the mounting plate, the second screw (98) passes through the clamp (91), the strip hole (16), the spacer (93) and the spacer (94) in sequence, and the end of the second screw (98) is threadedly connected to the second nut (99); the first spring (96) is arranged between the spacer (94) and the clamping plate (97), one end of the first spring (96) abuts against the groove of the spacer (94), and the other end of the first spring (96) abuts against the clamping plate (97); the end of the clamp (91) facing away from the locking knob (92) is slidably connected to the mounting bracket (15), the strip holes (16) are arranged in pairs, and a sliding screw (910) is provided between the end of the clamp (91) facing away from the locking knob (92) and the strip hole (16).

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