Rotary control lift ottoman

Abstract

The utility model discloses a kind of rotation control lifting footstool, it is related to lifting stool field.It includes footstool main body, gas spring and support foot, gas spring bottom is fixed to support foot, top is equipped with control valve and is connected with regulation and control board, there is rotatable rotating plate on regulation and control board, footstool main body is fixed to rotating plate.Regulation and control board is equipped with limit structure, rotating plate is equipped with actuating mechanism, actuating mechanism is constrained when rotating with footstool main body, realize the pressing of control valve, to control footstool lifting.The design has solved the problem that user lies down and is difficult to adjust footstool height, convenient to operate, improve the use comfort degree.

Description

Technical Field

[0001] This solution relates to the field of height-adjustable stools, specifically a rotating-controlled height-adjustable footstool. Background Technology

[0002] Currently, most height-adjustable chairs and stools on the market use hand levers or foot pedals as the primary control method for adjusting height. When the user maintains a normal sitting posture, this design does provide a convenient operating experience, allowing the user to easily adjust the height of the chair or stool according to their needs. However, the situation becomes complicated when the user changes their sitting posture, adopts a reclining position, and places their feet on a footstool. Because the user's arms are often unable to reach the hand lever while reclining, or due to body posture limitations, the feet cannot exert sufficient force to operate the foot pedals, making it difficult to effectively adjust the footstool height while lying down. This design limitation undoubtedly causes inconvenience during use, affecting overall comfort and user experience. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a rotating control height-adjustable footstool.

[0004] The specific technical solution of this utility model to solve the above-mentioned technical problems is as follows: A rotating control height-adjustable footstool includes a footstool body, a gas spring, and a support leg. The bottom of the gas spring is fixedly mounted on the support leg, and the gas spring carries the footstool body to rise and fall. A control valve of the gas spring is located on its top, and a control plate is fixedly connected to the top of the gas spring. A rotating plate is rotatably mounted on the control plate, and the footstool body is fixedly mounted on the rotating plate. A limiting structure is provided on the control plate, and an actuator is provided on the rotating plate. The actuator, while rotating with the footstool body, is constrained by the limiting structure to press the control valve.

[0005] Therefore, when the footstool rotates, it drives the actuator to rotate synchronously. The actuator is simultaneously constrained by the limiting structure, which causes at least a part of the actuator to be displaced or deformed in the axial direction of the gas spring, thereby pressing the control valve of the gas spring.

[0006] Furthermore, the control plate is provided with at least one ramp block, the rotating plate is provided with a bracket, and the operating lever is rotatably mounted on the bracket via a rotating shaft. One end of the operating lever abuts against the control valve of the gas spring, and the other end is provided with a roller, with the ramp block located on the travel path of the roller.

[0007] Therefore, when the footstool rotates, it drives the rotating plate fixed to it to rotate synchronously. During the rotation of the rotating plate, the operating lever connected to its upper bracket also rotates. When the roller at the end of the operating lever touches the ramp block on the control plate and climbs up the ramp driven by the continued rotation of the footstool, the operating lever rotates around the pivot. One end of the roller is lifted by the ramp surface. Based on the lever principle, the end of the operating lever that is against the control valve of the gas spring will descend, thereby opening the control valve of the gas spring and controlling the extension and retraction of the gas spring. That is, when the roller rolls from the lower position to the higher position of the ramp block, the operating lever applies pressure to the control valve, the gas spring is unlocked, and the footstool descends or rises under its own weight and the weight of the user's feet (controlled by the pressure applied by the user to the footstool); when the roller rolls from the higher position to the lower position of the ramp block, the pressure of the operating lever on the control valve decreases, the gas spring is locked, the footstool stops descending and remains at the current height. This rotary control method allows users to easily adjust the height of the footstool, avoiding the inconvenience caused by inconvenient operation in traditional designs. It greatly improves the comfort and convenience of using the footstool and meets the needs of different users for footstool height in different scenarios. Furthermore, the ramp blocks are two pieces, respectively located on both sides of the operating lever, thereby enabling lifting and lowering to be controlled by left and right rotation.

[0008] Furthermore, the control plate is provided with an irregularly shaped limiting groove, the irregularly shaped limiting groove includes a downward inclined surface, the rotating plate is provided with a bracket above the control valve, one end of the operating rod is hinged to the bracket, and a torsion spring is provided on the hinge shaft, the torsion spring drives the operating rod away from the control valve, and the other end of the operating rod is provided with a cylindrical pin, the cylindrical pin is provided in the irregularly shaped limiting groove.

[0009] When the footstool rotates, the cylindrical pin moves within the irregularly shaped limiting groove. Because the groove has a downward-sloping surface, as the pin moves along this surface, it pushes the operating lever to rotate around the hinge axis. Due to the torsion spring, the operating lever initially tends to move away from the control valve, but as the pin moves within the groove, the lever overcomes the torsion spring's force, causing it to press against the control valve, thus pressing it down.

[0010] When the cylindrical pin moves from a higher to a lower position on the ramp, the operating lever rotates downward against the torsion spring force, thus pressing the control valve and opening the gas spring's control valve. The gas spring is then unlocked, and the footstool can rise or fall under its own weight and the user's foot weight. The user can control the specific raising or lowering by applying pressure to the footstool. Conversely, when the cylindrical pin moves from a lower to a higher position on the ramp, the pressure of the operating lever on the control valve decreases under the action of the torsion spring, the gas spring is locked, and the footstool stops falling and remains at the current height.

[0011] The combination of this irregularly shaped limiting groove and cylindrical pin further optimizes the footstool's rotation control and height adjustment function. This makes operation more precise and stable, allowing for more accurate control of the gas spring's unlocking and locking states. Compared to a design relying solely on ramp blocks, this adds a new control method. The two work together to significantly improve the reliability and flexibility of the footstool height adjustment, better adapting to the diverse height needs of different users in various scenarios, further enhancing the footstool's comfort and convenience. Furthermore, the top of the irregularly shaped limiting groove is an inverted U-shaped opening. When the cylindrical pin is located within the inverted U-shaped opening, the footstool is restricted from rotating. The rotating plate is mounted on the adjusting plate via an axial spring, allowing the rotating plate to move axially up and down within the extension range of the axial spring, and also to rotate within a certain angle range. Thus, when the footstool is not subjected to external force, the axial spring drives the footstool body to the top, with the cylindrical pin located within the inverted U-shaped opening, preventing the footstool from rotating. When a certain pressure is applied to the footstool, it compresses the axial spring, moving downwards a certain distance, causing the cylindrical pin to disengage from the inverted U-shaped opening. At this point, rotating the footstool allows the inclined surface within the irregularly shaped limiting groove to press against the cylindrical pin, thereby controlling the gas spring control valve and achieving the lifting and lowering operation of the gas spring.

[0012] In addition, to improve the stability of the footstool, the bottom of the support legs is equipped with an anti-slip pad. The anti-slip pad is made of rubber with a fine textured surface, which increases the friction with the ground and effectively prevents the footstool from sliding during use, ensuring user safety. At the same time, the anti-slip pad also has a certain shock absorption effect, which can reduce the vibration and noise generated when the footstool is raised and lowered.

[0013] To reduce friction during rotation, an intermediate plate is provided between the axial spring and the rotating plate. The intermediate plate is made of a material with a low coefficient of friction, such as Teflon. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the entire rotating and lifting footstool of this utility model; Figure 2This is a schematic diagram of a gas spring; Figure 3 This is a schematic diagram of the rotation control mechanism in the first embodiment.

[0015] Figure 4 This is a first-view schematic diagram of the rotation control mechanism in the second embodiment; Figure 5 This is a second-view schematic diagram of the rotation control mechanism in the second embodiment.

[0016] The following is a list of component names represented by each number in the attached diagram: 1. Footstool body; 2. Gas spring; 3. Support leg; 4. Control plate; 5. Rotating plate; 6. Bracket; 7. Operating lever; 8. Inclined block; 9. Cylindrical pin; 10. Irregularly shaped limiting groove; 11. Inverted U-shaped groove; 12. Axial spring; 13. Intermediate plate; 21. Control valve; 71. Operating end; 72. Roller. Detailed Implementation

[0017] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0018] Example 1: like Figure 1As shown, a rotating and adjustable footstool includes a footstool body 1, a gas spring 2, and a support leg 3. The bottom of the gas spring 2 is fixedly mounted on the support leg 3. The gas spring 2 carries the footstool body 1 to rise and fall. A control valve 21 of the gas spring 2 is located on its top. A control plate 4 is fixedly connected to the top of the gas spring 2. A rotating plate 5 is rotatably mounted on the control plate 4. The footstool body 1 is fixedly mounted on the rotating plate 5. Two ramps 8 are provided on the control plate 4, respectively located on both sides of an operating lever 7. A bracket 6 is provided on the rotating plate 5. The operating lever 7 is rotatably mounted on the bracket 6 via a pivot. One end of the operating lever 7 abuts against the control valve 21 of the gas spring 2, and the other end is provided with a roller 72. The ramps 8 are located on the travel path of the roller 72. By rotating the footstool body 1, the rotating plate 5 is driven to rotate, causing the roller 72 to roll on the ramps 8. When the roller 72 rolls from the lower position to the higher position of the ramp block 8, the operating lever 7 rotates around the pivot, and the operating end 71 against the control valve 21 descends, opening the control valve 21 of the gas spring 2. The gas spring 2 unlocks, and the footstool body 1 can descend under gravity or rise under pressure applied by the user. When the roller 72 rolls from the higher position to the lower position of the ramp block 8, the pressure of the operating lever 7 on the control valve 21 decreases, the gas spring 2 locks, and the footstool body 1 stops descending and maintains its current height. Users can easily adjust the height of the footstool by rotating the footstool body 1 left or right according to their needs. Whether rotating left or right, the ramp blocks 8 on both sides can be used to open and close the control valve 21 of the gas spring 2, thereby completing the raising and lowering operation of the footstool. This design greatly improves the convenience of using the footstool, allowing users to easily adjust the height of the footstool even in lying or other positions, avoiding the inconvenience of traditional hand handles or foot pedals in special positions, and meeting the user needs in different scenarios. Meanwhile, the anti-slip pads on the bottom of the support foot 3 ensure the footstool remains stable and does not slip during use, guaranteeing user safety and providing shock absorption and noise reduction, thus enhancing the overall user experience. The intermediate plate 13 between the axial spring 12 and the rotating plate 5 is made of Teflon material with a low coefficient of friction, effectively reducing friction during rotation and making the footstool's rotation operation smoother. Example 2: A rotating and adjustable footstool includes a footstool body 1, a gas spring 2, and a support leg 3. The bottom of the gas spring 2 is fixedly mounted on the support leg 3. The gas spring 2 carries the footstool body 1 to move up and down. A control valve 21 of the gas spring 2 is located on its top. A control plate 4 is fixedly connected to the top of the gas spring 2. A rotating plate 5 is rotatably mounted on the control plate 4. The footstool body 1 is fixedly mounted on the rotating plate 5. An irregularly shaped limiting groove 10 is provided on the control plate 4. The irregularly shaped limiting groove 10 contains... The rotating plate 5 has a downward-sloping surface. A bracket 6 is provided on the rotating plate 5 above the control valve 21. One end of the operating rod 7 is hinged to the bracket 6, and a torsion spring is provided on the hinge shaft. The torsion spring drives the operating rod 7 away from the control valve 21. The other end of the operating rod 7 is provided with a cylindrical pin 9. The cylindrical pin 9 is located in the irregularly shaped limiting groove 10. The top of the irregularly shaped limiting groove 10 is an inverted U-shaped groove 11. When the cylindrical pin 9 is located in the inverted U-shaped groove 11, the footstool is restricted and cannot rotate. The rotating plate 5 is mounted on the regulating plate 4 via the axial spring 12. Thus, the rotating plate 5 can move axially up and down within the extension range of the axial spring 12, and can also rotate within a certain angle range. Therefore, when the footstool is not subjected to external force, the axial spring 12 drives the footstool body 1 to the top, with the cylindrical pin 9 positioned within the inverted U-shaped groove 11, preventing the footstool from rotating. When a certain pressure is applied to the footstool, it compresses the axial spring 12, moving downwards a certain distance, causing the cylindrical pin 9 to disengage from the inverted U-shaped groove 11. Rotating the footstool at this point allows the inclined surface within the irregularly shaped limiting groove 10 to press against the cylindrical pin 9, thereby controlling the control valve 21 of the gas spring 2 and achieving the lifting and lowering operation of the gas spring 2.

[0019] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rotating control height-adjustable footstool, comprising a footstool body, a gas spring, and a support leg, wherein the bottom of the gas spring is fixedly mounted on the support leg, the gas spring carries the footstool body to rise and fall, and a control valve for the gas spring is located at its top, characterized in that... A control plate is fixedly connected to the top of the gas spring. A rotating plate is rotatably provided on the control plate. The foot stool body is fixedly mounted on the rotating plate. At least one ramp block is provided on the control plate. A bracket is provided on the rotating plate. An operating lever is rotatably mounted on the bracket via a rotating shaft. One end of the operating lever abuts against the control valve of the gas spring, and the other end is provided with a roller. The ramp block is located on the travel path of the roller. or, The control plate is provided with an irregularly shaped limiting groove, which contains a downward inclined surface. A bracket is provided on the rotating plate above the control valve. One end of the operating rod is hinged to the bracket, and a torsion spring is provided on the hinge shaft. The torsion spring drives the operating rod away from the control valve. The other end of the operating rod is provided with a cylindrical pin, which is located in the irregularly shaped limiting groove.

2. The rotating control lifting footstool according to claim 1, characterized in that, The ramp consists of two blocks, which are respectively located on both sides of the operating lever.

3. The rotating control lifting footstool according to claim 1, characterized in that, The top of the irregularly shaped limiting groove is an inverted U-shaped opening. When the cylindrical pin is located in the inverted U-shaped opening, the footstool is restricted from rotating. The rotating plate is mounted on the control plate via an axial spring.

4. The rotating control lifting footstool according to claim 3, characterized in that, An intermediate plate with a low coefficient of friction is provided between the axial spring and the rotating plate.

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