A work stool

Abstract

The application discloses a work stool, which comprises a work stool body, a foot rod base rotatably connected to the work stool body, two foot rod bodies hingedly connected to the foot rod base, a connecting rod assembly arranged between the two foot rod bodies, a sliding slot and a limiting slot arranged on the foot rod base, a toggle switch assembly arranged on the work stool body, a pull spring, a limiting pin and a switch body, the switch body being hingedly connected to the work stool body, a first pin shaft arranged between the work stool body and the foot rod base, the pull spring being arranged between the first pin shaft and the limiting pin, the limiting pin penetrating through the work stool body, the foot rod base and the switch body, the limiting pin sliding relative to the foot rod base when the switch body is rotated, and a lock catch assembly arranged on the work stool body and used for unfolding the foot rod body. The foot rod body in the folded state is locked by the toggle switch assembly and is automatically locked by the lock catch assembly, the foot rod body is unfolded and folded at a high speed, and the operation is simple.

Description

Technical Field

[0001] This invention belongs to the field of work stools, and specifically relates to a work stool. Background Technology

[0002] A sawmill frame is an auxiliary tool used to hold timber during sawing. Existing sawmill frames typically consist of a workbench with four hinged legs at its base. These legs can be unfolded and folded relative to the workbench for easy carrying. To ensure the workbench is stable when unfolded, a hinged connecting rod is used between the legs and the workbench, with the legs locked in place by the connecting rod and a sliding lock. When the legs are folded, a latch is often used to secure them in the folded state. Because of the connecting rod, each time the legs are unfolded, the latch must be unlocked first, then the legs unfolded, and finally the connecting rod rotated and secured by the sliding lock. This unfolding process is slow. Similarly, folding the legs also requires unlocking the sliding latch, rotating the connecting rod to detach it from the workbench, and then the operator rotates the legs before securing them with the latch. Therefore, existing sawmill frames are slow to unfold and fold, cumbersome to operate, and offer a poor user experience. Thus, a workbench needs to be designed to overcome these difficulties. Summary of the Invention

[0003] This invention addresses the problems existing in the prior art by designing a work stool. The invention uses a toggle switch assembly to lock the leg body. When folding the leg body, the work stool is placed in the opposite direction and the switch is activated. A gentle push on the leg body causes it to fold automatically and lock automatically through a locking assembly. When unfolding the leg body, the locking assembly is opened and the work stool is placed facing forward. The leg body unfolds automatically under the action of gravity and a spring, and locks automatically through the toggle switch assembly. The leg body unfolds and folds quickly and is easy to operate.

[0004] The objective of this invention is achieved through the following technical solution: a work stool, comprising a work stool body, with footrests rotatably connected to both ends of the work stool body; each footrest has two footrests hinged to it, and a connecting rod assembly connecting the two footrests is provided, the connecting rod assembly including a booster spring; each footrest has a sliding groove and a limiting groove communicating with each other, and the work stool body has a toggle switch assembly for folding the footrests; the toggle switch assembly includes a tension spring, a limiting pin, and a switch body, the switch body being hinged to the work stool body; a first pin is provided between the work stool body and the footrests, and the tension spring is disposed between the first pin and the limiting pin; the limiting pin passes through the work stool body, the footrests, and the switch body simultaneously, and slides relative to the footrests when the switch body is rotated; the work stool body also has a locking assembly for unfolding the footrests, the locking assembly including a resilient button.

[0005] Preferably, the work stool body has a first through hole for inserting a limiting pin, and the switch body has a second through hole for inserting the limiting pin; a second pin is provided between the switch body and the work stool body to hinge the two, and the limiting pin is inserted into both the first and second through holes; one end of the tension spring is hooked on the limiting pin, and the other end of the tension spring is hooked on the first pin; the first through hole is an oblong hole, and the axis of the first through hole is perpendicular to the upper end face of the work stool body; in the default state, the limiting pin is located at the bottom end of the first through hole and is simultaneously located in the limiting groove; when the switch body is rotated, the switch body drives the limiting pin to move from the limiting groove into the sliding groove.

[0006] When the leg body is in the unfolded state, the limiting pin is at the bottom of the first through hole and in the limiting groove of the leg seat; at this time, the tension spring is in the stretched state, and the limiting pin is stably locked in the limiting groove, so the leg seat cannot rotate relative to the work stool body; at the same time, the connecting rod assembly is in the unfolded state, so the leg body can be stably in the unfolded state. When it is necessary to fold the leg body, first place the work stool body upside down in the reverse direction, with the upper end of the work stool body in contact with the ground; then rotate the switch body, and when the switch body rotates, it drives the limiting pin to move along the second through hole, and the limiting pin will move in the first through hole and from the limiting groove into the sliding groove; at this time, the leg seat loses the limitation of the limiting pin, and the leg seat can rotate relative to the work stool body; when the leg seat rotates, the sliding groove in the leg seat rotates relative to the limiting pin. Since the work stool body is upside down at this time, the leg body rotates quickly under the action of gravity and is in contact with the work stool body, and then the leg body is automatically locked by the locking assembly. When the leg arm needs to be extended, place the work stool upright and press the elastic button. The leg arm will automatically extend under gravity, and the extension speed is even faster due to the elastic force of the assist spring. During the extension process, the leg arm seat rotates relative to the limiting pin. The limiting pin will automatically slide from the slide groove into the limiting slot and then be tightened by the tension spring, thus ensuring that the leg arm remains stably extended.

[0007] Preferably, the work stool body is provided with a footrest that can rotate relative to it. The footrest includes two parallel mounting plates, and the end face of the switch body is parallel to the end face of the mounting plate. The sliding groove is an arc-shaped groove, and the limiting groove is a U-shaped groove. The sliding groove and the limiting groove are interconnected. The sliding groove and the limiting groove have the same width. The limiting pin is cylindrical, and the outer diameter of the limiting pin is adapted to the width of the sliding groove or the width of the limiting groove. The work stool body is provided with a limiting protrusion that restricts the rotation of the footrest body. When the footrest body is in the folded state, the edge of the footrest and the limiting protrusion are fitted together.

[0008] The slide groove and the limiting groove have the same width. The limiting pin is cylindrical, and its outer diameter matches the width of either the slide groove or the limiting groove, allowing the limiting pin to move stably within them. By providing a limiting protrusion, the leg body and the work stool body are prevented from fitting too closely. When the leg body is folded into place, a gap remains between them, preventing the limiting pin from impacting and wearing down the end of the slide groove. Since the slide groove as a whole does not deform, the limiting pin's movement trajectory relative to the slide groove will not deviate.

[0009] Preferably, the end of the limiting pin is provided with a retaining ring for detachable connection; the limiting pin is positioned higher than the first pin shaft, and the second pin shaft is positioned higher than the first pin shaft. By providing the retaining ring, the limiting pin is prevented from disengaging from the first through hole in the workbench body.

[0010] Preferably, each mounting plate has interconnected sliding grooves and limiting grooves. The sliding grooves on two mounting plates are aligned, and the limiting grooves on two mounting plates are aligned. The side arm of the switch body is located between the inner wall of the work stool body and the mounting plate, and the switch body is adjacent to the inner wall of the work stool body. By using two mounting plates, the overall structural strength of the footrest is improved. Simultaneously, the sliding grooves and limiting grooves are paired, ensuring that both ends of the limiting pin are always perpendicular to the mounting plate of the footrest, resulting in smoother movement of the limiting pin and preventing jamming when the footrest rotates relative to the limiting pin.

[0011] Preferably, the locking assembly further includes a mounting cover, a first screw, a first nut, and a return spring; the elastic button is disposed between the mounting cover and the inner wall of the work stool body, and the mounting cover is fixedly mounted on the work stool body by the first screw and the first nut; the elastic button is rotatably connected to the mounting cover, the top of the elastic button is provided with a pressing part, and the bottom of the elastic button is provided with a locking hook; a return spring is provided between the elastic button and the inner wall of the work stool body, and the return spring is disposed near the locking hook.

[0012] When the leg body is in the unfolded state, the return spring is compressed, and the locking hook of the elastic button is away from the inner wall of the work stool body. When the leg body switches from the unfolded state to the folded state, the leg body rotates closer to the locking hook. When the leg body contacts the inclined surface of the locking hook, the leg body automatically pushes the locking hook, and then the leg body is locked by the locking hook. At this time, the return spring is further compressed, and the locking hook can reliably lock the leg body, and the leg body can be stably in the folded state. When the leg body switches from the folded state to the unfolded state, the work stool body is placed upright, and the pressing part of the elastic button is pressed inward. The pressing part moves into the interior of the work stool body. Since the elastic button is rotatably connected to the mounting cover, when the pressing part is squeezed, the locking hook overcomes the elastic force of the return spring and moves to the outside of the work stool body. In this way, the locking hook automatically moves away from the leg body, and the leg body automatically unfolds under the action of gravity.

[0013] Preferably, the elastic button is provided with a rotating shaft for pivotally mounting the cover, and the rotating shaft is positioned higher than the return spring; the inner wall of the work stool body is provided with a columnar protrusion, and the elastic button is provided with a mounting groove for placing the return spring; one end of the return spring is sleeved on the columnar protrusion, and the other end of the return spring abuts against the mounting groove; the locking assemblies are arranged in pairs on both sides of the work stool body, the pressing part is located near the top of the work stool body, and the locking hook extends from the bottom of the mounting cover.

[0014] By setting a rotating shaft, the elastic button can reliably rotate relative to the mounting cover. The return spring is limited by the columnar protrusion and mounting groove to prevent it from detaching from the mounting cover, thus ensuring the return spring can stably generate elastic force.

[0015] Preferably, a third pin is provided between the footrest and the footrest body to hinge the two, and the third pin is perpendicular to the first pin; when the footrest body on the work stool body is unfolded, the first pin is higher than the third pin; the linkage assembly also includes a pair of linkage bodies, and a fourth pin is provided between the two linkage bodies to hinge the two; the end of each linkage body is hinged to the adjacent footrest body; and an assist spring is provided between the two linkage bodies.

[0016] By hinged connecting rod bodies to the foot rod bodies, the foot rod bodies are supported by the connecting rod bodies when unfolded, resulting in a more stable and reliable unfolded state. By incorporating assist springs, when the two connecting rod bodies are unfolded to the same axis, the assist springs pull, preventing relative rotation between the two connecting rod bodies and ensuring reliable unfolding of the connecting rod assembly, thus maintaining the foot rod bodies in a stable unfolded state. When the two foot rod bodies are folded closer together, the two connecting rod bodies rotate and are no longer on the same axis; then, the assist springs pull, allowing the two connecting rod bodies to fold quickly together.

[0017] Preferably, each of the connecting rod bodies is provided with a mounting shaft for mounting a booster spring, and the end of the booster spring is hooked onto the mounting shaft; when the two foot rod bodies are extended relative to 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 positioned above the fourth pin.

[0018] Preferably, the work stool body has mounting brackets fixedly connected to both sides. Each mounting bracket has a wooden positioning frame assembly that can slide relative to it. The wooden positioning frame assembly includes a clamping block, a locking knob, a spacer, a partition, a carriage bolt, a first spring, and a pressure plate. The mounting bracket has a slotted hole for mounting the carriage bolt, which passes through the slotted hole. The locking knob is threaded to the carriage bolt. The partition, the first spring, and the pressure plate are sequentially sleeved on the carriage bolt. The partition and the mounting bracket... A spacer is provided between the inner walls. A second screw and a second nut are provided between the spacer and the mounting plate to fix the two. The second screw passes through the clamping block, the strip hole, the spacer, and the spacer in sequence, and the end of the second screw is threadedly connected to the second nut. The first spring is provided between the spacer and the clamping plate. One end of the first spring abuts against the groove in the spacer, and the other end of the first spring abuts against 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 provided in pairs. 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 different thicknesses to be placed in the groove formed between the wood positioning frame assembly and the work stool body. Two work stools are placed side-by-side, and wood strips are placed in the groove between the wood positioning frame assembly and the work stool body. A whole wooden board is then placed on the upper surface of the two work stool bodies, allowing the work stools to function as supports, and the operator can perform processing work on the board. Multiple work stools can also be placed side-by-side and spliced ​​together. When a work stool is used alone, it is often used for wood strip cutting, requiring the wood positioning frame assembly to clamp and position the wood strips. Turning the locking knob moves the carriage bolt away from the partition and the locking knob away from the outer wall of the clamping block, allowing the clamping block to slide relative to the mounting bracket along the slotted hole. Because a first spring is provided between the partition and the pressure plate, the partition remains in contact with the inner wall of the mounting bracket. When the locking knob is loosened, the partition rests against the mounting bracket, preventing significant sliding between the clamping block and the mounting bracket, thus facilitating adjustment of the clamping block's sliding distance.

[0020] Compared with the prior art, the present invention has the following advantages: The present invention facilitates the folding of the leg body by using a toggle switch assembly. When the switch body is rotated, the limiting pin automatically moves from the limiting groove into the sliding groove, allowing the leg seat to rotate relative to the work stool body. First, the work stool body is placed upside down, then the switch body is rotated, and the leg body is gently pushed. The leg body will automatically fold under gravity and automatically lock via the elastic button on the locking assembly. When the leg body is in the unfolded state, the limiting pin is engaged in the limiting groove and held in place by the tension spring, thus ensuring the leg body remains stably in the unfolded state. Simultaneously, when switching from the unfolded to the folded state, the two leg bodies will move closer together and rotate. Under the action of the assist spring, the two leg bodies automatically and quickly approach each other, resulting in a faster folding speed. When switching from the folded to the unfolded state, pressing the elastic button allows the leg body to automatically unfold under gravity and automatically lock via the toggle switch assembly. The unfolding process is fast and requires no additional operation to automatically lock the leg body. Therefore, the leg body of the present invention can be quickly unfolded and folded, is simple and reliable to operate, and provides a good user experience. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a bottom view of the present invention;

[0023] Figure 3 This is a side view of the invention in its inverted state;

[0024] Figure 4 for Figure 3 A sectional view taken from point AA;

[0025] Figure 5 for Figure 4 A schematic diagram showing the switch body after it has been turned on;

[0026] Figure 6 for Figure 5 A magnified view of the area at position C in the middle;

[0027] Figure 7 This is a diagram showing the internal structure of the leg body of the present invention when folded.

[0028] Figure 8 This is a side view of the leg body of the present invention when folded;

[0029] Figure 9 for Figure 8 A sectional view taken from point BB;

[0030] Figure 10 This is an internal structural diagram of the leg body of the present invention during its unfolding process;

[0031] Figure 11 This is a diagram of the internal structure of the linkage assembly;

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

[0033] Figure 13 Exploded view of the wooden positioning frame assembly.

[0034] Markings in the diagram: 1. Work stool body; 2. Leg support; 21. Slide groove; 22. Limiting groove; 23. Mounting plate; 3. Leg body; 4. Linkage assembly; 41. Assist spring; 42. Linkage 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. Spring button; 72. First screw; 73. First nut; 74. Return spring; 75. Pressing button 76. Locking hook; 77. Rotating shaft; 78. Mounting groove; 79. Mounting cover; 8. First through hole; 9. Wooden positioning frame assembly; 91. Clamping block; 92. Locking knob; 93. Spacer; 94. Partition plate; 95. Carriage bolt; 96. First spring; 97. Pressure plate; 98. Second screw; 99. Second nut; 910. Sliding screw; 10. Second pin; 11. Limiting protrusion; 12. Snap ring; 13. Columnar protrusion; 14. Third pin; 15. Mounting bracket; 16. Strip hole. Detailed Implementation

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

[0036] like Figures 1 to 13 As shown, this embodiment discloses a work stool, including a work stool body 1, with footrests 2 rotatably connected to both ends of the work stool body 1; each footrest 2 has two footrest bodies 3 hinged to it, and a connecting rod assembly 4 connecting the two footrest bodies 3 is provided, the connecting rod assembly 4 including a booster spring 41; the footrest 2 has a sliding groove 21 and a limiting groove 22 communicating with each other, and the work stool body 1 has a toggle switch assembly 5 for folding the footrest bodies 3; the toggle switch assembly... 5 includes a tension spring 51, a limiting pin 52, and a switch body 53, which is hinged to the work stool body 1; a first pin 6 is provided between the work stool body 1 and the footrest 2, and the tension spring 51 is located between the first pin 6 and the limiting pin 52; the limiting pin 52 passes through the work stool body 1, the footrest 2, and the switch body 53 simultaneously, and the limiting pin 52 slides relative to the footrest 2 when the switch body 53 is rotated; the work stool body 1 is also provided with a locking assembly 7 for unfolding the footrest body 3, and the locking assembly 7 includes an elastic button 71.

[0037] The work stool body 1 has a first through hole 8 for inserting a limiting pin 52, and the switch body 53 has a second through hole 531 for inserting the limiting pin 52. A second pin 10 is provided between the switch body 53 and the work stool body 1 to hinge the two. The limiting pin 52 is inserted into both the first through hole 8 and the second through hole 531. One end of the tension spring 51 is hooked on the limiting pin 52, and the other end of the tension spring 51 is hooked on the first pin 6. The first through hole 8 is an oblong hole, and the axis of the first through hole 8 is perpendicular to the upper end face of the work stool body 1. In the default state, the limiting pin 52 is located at the bottom end of the first through hole 8 and is simultaneously located in the limiting groove 22. When the switch body 53 is rotated, the switch body 53 drives the limiting pin 52 to move from the limiting groove 22 into the slide groove 21. The work stool body 1 is provided with a footrest 2 that can rotate relative to it. The footrest 2 includes two parallel mounting plates 23. The end face of the switch body 53 is parallel to the end face of the mounting plate 23. The sliding groove 21 is an arc-shaped groove, and the limiting groove 22 is a U-shaped groove. The sliding groove 21 and the limiting groove 22 are interconnected. The sliding groove 21 and the limiting groove 22 have the same width. The limiting pin 52 is cylindrical, and the outer diameter of the limiting pin 52 is adapted to the width of the sliding groove 21 or the width of the limiting groove 22. The work stool body 1 is provided with a limiting protrusion 11 to restrict the rotation of the footrest body 3. When the footrest body 3 is in the folded state, the edge of the footrest 2 and the limiting protrusion 11 are fitted together. The end of the limiting pin 52 is provided with a retaining spring 12 that is detachably connected to it. The limiting pin 52 is set higher than the first pin 6, and the second pin 10 is set higher than the first pin 6. Each mounting plate 23 is provided with a sliding groove 21 and a limiting groove 22 that are interconnected. The sliding grooves 21 on two mounting plates 23 are aligned, and the limiting grooves 22 on two mounting plates 23 are aligned. The side arm of the switch body 53 is disposed between the inner wall of the work stool body 1 and the mounting plate 23. The switch body 53 is disposed adjacent to the inner wall of the work stool body 1.

[0038] The locking assembly 7 further includes a mounting cover 79, a first screw 72, a first nut 73, and a return spring 74; the elastic button 71 is disposed between the mounting cover 79 and the inner wall of the work stool body 1, and the mounting cover 79 is fixedly mounted on the work stool 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 part 75, and the bottom of the elastic button 71 is provided with a locking hook 76; a return spring 74 is provided between the elastic button 71 and the inner wall of the work stool body 1, and the return spring 74 is disposed near the locking hook 76. The elastic button 71 is provided with a rotating shaft 77 for pivotally mounting the cover 79, and the rotating shaft 77 is positioned higher than the return spring 74; the inner wall of the work stool body 1 is provided with a columnar protrusion 13, and the elastic button 71 is provided with a mounting groove 78 for placing the return spring 74; one end of the return spring 74 is sleeved on the columnar protrusion 13, and the other end of the return spring 74 abuts against the mounting groove 78; the locking assemblies 7 are arranged in pairs on both sides of the work stool body 1, the pressing part 75 is located near the top of the work stool body 1, and the locking hook 76 extends from the bottom of the mounting cover 79.

[0039] A third pin 14 is provided between the footrest 2 and the footrest body 3 to hinge them together. The third pin 14 is perpendicular to the first pin 6. When the footrest body 3 on the work stool body 1 is unfolded, the first pin 6 is higher than the third pin 14. The linkage assembly 4 also includes a pair of linkage bodies 42, and a fourth pin 43 is provided between the two linkage bodies 42 to hinge them together. The end of each linkage body 42 is hinged to the adjacent footrest body 3. An assist spring 41 is provided between the two linkage bodies 42. Each linkage body 42 is provided with a mounting shaft 44 for mounting the assist spring 41, and the end of the assist spring 41 is hooked on the mounting shaft 44. When the two footrest bodies 3 are unfolded together, the two linkage bodies 42 are on the same axis. When the two linkage bodies 42 are on the same axis, the assist spring 41 is higher than the fourth pin 43.

[0040] The work stool body 1 has mounting brackets 15 fixedly connected to its two sides. Each mounting bracket 15 has a wooden positioning frame assembly 9 that can slide relative to it. The wooden 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 pressure plate 97. The mounting bracket 15 has a strip hole 16 for mounting the carriage bolt 95, and the carriage bolt 95 passes through the strip hole 16. The locking knob 92 is threadedly connected to the carriage bolt 95. The partition 94, the first spring 96, and the pressure plate 97 are sequentially sleeved on the carriage bolt 95. There is a space between the partition 94 and the inner wall of the mounting bracket 15. A spacer 93 is provided, and a second screw 98 and a second nut 99 are provided between the spacer 94 and the mounting bracket to fix the two. The second screw 98 passes through the clamping block 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 provided 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 clamping block 91 facing away from the locking knob 92 is slidably connected to the mounting bracket 15. The strip holes 16 are provided in pairs, and a sliding screw 910 is provided between the end of the clamping block 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 leg body 3 is in the unfolded state; when the leg body 3 is in the unfolded state, the limiting pin 52 is at the bottom of the first through hole 8 and the limiting pin 52 is in the limiting groove 22 of the leg seat 2; at this time, the tension spring 51 is in the stretched state, and the limiting pin 52 is stably stuck in the limiting groove 22, so the leg seat 2 cannot rotate relative to the work stool body 1; at the same time, the connecting rod assembly 4 is in the unfolded state, so the leg body 3 can be stably in the unfolded state. When the leg body 3 needs to be folded, first place the work stool body 1 upside down, with its upper surface touching the ground. Then rotate the switch body 53. As the switch body 53 rotates, it drives the limiting pin 52 to move along the second through hole 531. At the same time, the limiting pin 52 moves within the first through hole 8 and from the limiting groove 22 into the sliding groove 21. At this time, the leg seat 2 loses the limitation of the limiting pin 52 and can rotate relative to the work stool body 1. When the leg seat 2 rotates, the sliding groove 21 within the leg seat 2 rotates relative to the limiting pin 52. Since the work stool body 1 is upside down at this time, the leg body 3 rotates rapidly under the action of gravity and fits against the work stool body 1. Then, the leg body 3 is automatically locked by the locking assembly 7. When the leg body 3 needs to be unfolded, place the work stool body 1 upright and press the elastic button 71. The leg body 3 will automatically unfold under the action of gravity. Through the elastic force of the assist spring 41, the leg body 3 unfolds even faster. During the unfolding process of the foot bar body 3, the foot bar seat 2 rotates relative to the limiting pin 52. The limiting pin 52 will automatically slide from the slide groove 21 into the limiting groove 22, and then be 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 leg body 3 is in the unfolded state, the return spring 74 is in the compressed state, and the locking hook 76 of the elastic button 71 is away from the inner wall of the work stool body 1; when the leg body 3 switches from the unfolded state to the folded state, the leg body 3 rotates close to the locking hook 76; when the leg body 3 contacts the inclined surface of the locking hook 76, the leg body 3 automatically pushes the locking hook 76, and then the leg body 3 is locked by the locking hook 76; at this time, the return spring 74 is in a further compressed state, and the locking hook 76 can reliably lock the leg body 3, and the leg body 3 can be stably in the folded state. When the leg body 3 switches from the folded state to the unfolded state, the work stool body 1 is placed upright, and the pressing part 75 of the elastic button 71 is pressed inward. The pressing part 75 moves into the work stool body 1. Since the elastic button 71 is rotatably connected to the mounting cover 79, when the pressing part 75 is squeezed, the locking hook 76 overcomes the elastic force of the return spring 74 and moves outward from the work stool body 1. In this way, the locking hook 76 automatically moves away from the leg body 3, and the leg body 3 automatically unfolds under the action of gravity.

[0043] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A work stool comprising a work stool body (1), characterized in that, Both ends of the workbench body (1) are respectively provided with a foot rod base (2) which is rotationally connected with the workbench body (1); each foot rod base (2) is provided with two foot rod bodies (3) which are hingedly connected with the foot rod base (2), and a linkage assembly (4) which is hingedly connected with the two foot rod bodies (3) is arranged between the two foot rod bodies (3), and the linkage assembly (4) comprises a booster spring (41); the foot rod base (2) is provided with a sliding groove (21) and a limiting groove (22) which are in communication with each other, and the workbench body (1) is provided with a toggle switch assembly (5) for folding the foot rod body (3); the toggle switch assembly (5) comprises a tension spring (51), a limiting pin (52) and a switch body (53), and the switch body (53) is hingedly connected with the workbench body (1); a first pin shaft (6) is arranged between the workbench body (1) and the foot rod base (2), and the tension spring (51) is arranged between the first pin shaft (6) and the limiting pin (52); the limiting pin (52) penetrates through the workbench body (1), the foot rod base (2) and the switch body (53) at the same time, and the limiting pin (52) slides relative to the foot rod base (2) when the switch body (53) is rotated; the workbench body (1) is further provided with a lock catch assembly (7) for unfolding the foot rod body (3), and the lock catch assembly (7) comprises an elastic button (71); the workbench body (1) is provided with a first through hole (8) in which the limiting pin (52) is inserted, and the switch body (53) is provided with a second through hole (531) in which the limiting pin (52) is inserted; a second pin shaft (10) which is hingedly connected with the switch body (53) and the workbench body (1) is arranged between the switch body (53) and the workbench body (1), and the limiting pin (52) is inserted in 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 limiting 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); by default, the limiting pin (52) is arranged at the bottom end of the first through hole (8) and is synchronously arranged in the limiting groove (22), and when the switch body (53) is rotated, the switch body (53) drives the limiting pin (52) to move from the limiting groove (22) into the sliding groove (21); the workbench body (1) is provided with the foot rod base (2) which can rotate relative to the workbench body (1), the foot rod base (2) comprises two mounting plates (23) which are arranged in parallel to each other, and the end surface of the switch body (53) is arranged in parallel to the end surface of the mounting plate (23); the sliding groove (21) is a circular arc-shaped groove, the limiting groove (22) is a U-shaped groove, and the sliding groove (21) and the limiting groove (22) are in communication with each other; the width of the sliding groove (21) and the limiting groove (22) is the same, the limiting pin (52) is in a cylindrical shape, and the outer diameter of the limiting pin (52) is matched with the width of the sliding groove (21) or the width of the limiting groove (22); the workbench body (1) is provided with a limiting protrusion (11) for limiting the rotation of the foot rod body (3), and the edge of the foot rod base (2) and the limiting protrusion (11) are arranged in abutment with each other when the foot rod body (3) is in a folded state.The end of the limiting pin (52) is provided with a clamping spring (12) detachably connected therewith; the limiting 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); each of the mounting plates (23) is provided with a sliding groove (21) and a limiting groove (22) in communication with each other, the sliding grooves (21) on the two mounting plates (23) are arranged in alignment, and the limiting grooves (22) on the two mounting plates (23) are arranged in alignment; 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).

2. The work stool of claim 1, wherein, The lock catch assembly (7) further comprises a mounting cover (79), a first screw (72), a first nut (73) and a reset spring (74); the elastic button (71) is arranged between the mounting cover (79) and the inner wall of the workbench body (1), the mounting cover (79) is fixedly installed on the workbench body (1) through the first screw (72) and the first nut (73); the elastic button (71) is rotatably connected with 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); the reset spring (74) is arranged between the elastic button (71) and the inner wall of the workbench body (1), and the reset spring (74) is arranged close to the lock hook (76).

3. The work bench according to claim 2, characterized in that The elastic button (71) is provided with a rotating shaft (77) for pivotally connecting the mounting cover (79), and the rotating shaft (77) is arranged higher than the reset spring (74); the inner wall of the workbench body (1) is provided with a columnar protrusion (13), and the elastic button (71) is provided with a mounting groove (78) for arranging the reset spring (74); one end of the reset spring (74) is sleeved and arranged on the columnar protrusion (13), and the other end of the reset spring (74) abuts against the mounting groove (78); the lock catch assemblies (7) are arranged on both sides of the workbench body (1) in pairs, the pressing portion (75) is arranged close to the top of the workbench body (1), and the lock hook (76) is arranged to pass out from the bottom of the mounting cover (79).

4. The work bench according to claim 1, wherein The third pin shaft (14) for hingedly connecting the foot rod seat (2) and the foot rod body (3) is arranged perpendicular to the first pin shaft (6); when the foot rod body (3) on the workbench body (1) is arranged to be unfolded, the first pin shaft (6) is arranged higher than the third pin shaft (14); the connecting rod assembly (4) further comprises a pair of connecting rod bodies (42) arranged in pairs, and the fourth pin shaft (43) for hingedly connecting the two connecting rod bodies (42) is arranged therebetween; the distal end of each connecting rod body (42) is hingedly connected with the adjacent foot rod body (3); and the power assisting spring (41) is arranged between the two connecting rod bodies (42).

5. The work bench according to claim 4, characterized in that Each connecting rod body (42) is provided with a mounting shaft (44) for mounting the power assisting spring (41), and the distal end of the power assisting spring (41) is hooked on the mounting shaft (44); when the two foot rod bodies (3) are unfolded, the two connecting rod bodies (42) are arranged on the same axis, and the power assisting spring (41) is arranged higher than the fourth pin shaft (43) when the two connecting rod bodies (42) are arranged on the same axis.

6. The work bench according to claim 1, wherein Two sides of the work stool body (1) are respectively provided with mounting brackets (15) fixedly connected therewith, each mounting bracket (15) is provided with a wood positioning frame assembly (9) capable of sliding left and right relative thereto, the wood positioning frame assembly (9) comprises a clamping block (91), a locking knob (92), a spacer sleeve (93), a partition plate (94), a carriage bolt (95), a first spring (96) and a pressing piece (97); the mounting bracket (15) is provided with a strip-shaped hole (16) for mounting the carriage bolt (95), the carriage bolt (95) is inserted in the strip-shaped hole (16), and the locking knob (92) is threadedly connected with the carriage bolt (95); the partition plate (94), the first spring (96) and the pressing piece (97) are sequentially sleeved on the carriage bolt (95); the spacer sleeve (93) is arranged between the partition plate (94) and the inner wall of the mounting bracket (15), the second screw (98) and the second nut (99) for fixing the partition plate (94) and the mounting bracket (15) are arranged between the partition plate (94) and the mounting bracket (15), the second screw (98) sequentially penetrates through the clamping block (91), the strip-shaped hole (16), the spacer sleeve (93) and the partition plate (94), and the tail end of the second screw (98) is threadedly connected with the second nut (99); the first spring (96) is arranged between the partition plate (94) and the pressing piece (97), one end of the first spring (96) abuts against the recess of the partition plate (94), and the other end of the first spring (96) abuts against the pressing piece (97); the end of the clamping block (91) opposite to the locking knob (92) is slidingly connected with the mounting bracket (15), the strip-shaped holes (16) are arranged in pairs, and the sliding screw rod (910) is arranged between the end of the clamping block (91) opposite to the locking knob (92) and the strip-shaped hole (16).

Images