A footrest and furniture
By designing a leg frame with limit hinges and linkage components, the furniture can be easily switched between moving and stationary states, solving the problems of cumbersome operation and insufficient stability of existing furniture when switching states, and improving the convenience of use and structural reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN AIMU BEDROOM SUPPLIES
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-23
AI Technical Summary
Existing furniture is cumbersome to operate when switching between moving and stationary states, lacks effective state switching and structural linkage, resulting in insufficient stability, and the caster structure is prone to damage, making it inconvenient to use.
A tripod was designed, comprising two sets of support structures, connecting rods, and a switching device. The synchronous switching of casters and support feet is achieved through limit hinges and linkage assemblies, enabling rapid switching between moving and stationary states. The switching assembly and elastic components ensure convenient operation and stability.
It enables easy switching between moving and stationary states for furniture, improves usability and structural stability, extends the service life of casters, avoids problems such as unilateral failure and uneven force distribution, and enhances overall reliability and aesthetics.
Smart Images

Figure CN224387046U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of furniture technology, and in particular to a stand and furniture. Background Technology
[0002] In modern office and home environments, furniture not only serves basic storage and functionality but also needs to meet diverse spatial adaptation and flexible layout requirements. Traditional furniture products, such as desks, wardrobes, and display cabinets, are typically large and heavy. Once placed, moving or rearranging them often requires manual handling, which is time-consuming, labor-intensive, and prone to damage or user injury due to collisions, posing safety hazards. To improve usability, some furniture features casters for movement, but due to a lack of effective state switching and structural linkage, the furniture often still relies on manually locking the wheels or using external supports when transitioning from a moving to a stationary state, which is cumbersome and lacks stability. Furthermore, existing furniture leg structures generally lack controllable limiting and synchronous linkage functions. During the raising of support legs or the extension or retraction of casters, problems such as unilateral failure, uneven stress, or excessive angle often occur, affecting structural reliability and user experience. Utility Model Content
[0003] This application aims to address at least one of the technical problems existing in the prior art. This application provides a tripod and furniture that can more conveniently and flexibly switch between moving and stationary states, adapting to different scenarios and needs.
[0004] The tripod according to a first aspect embodiment of this application includes at least two sets of support structures, the support structures comprising:
[0005] First supporting leg;
[0006] The second support leg is spaced apart from the first support leg.
[0007] The first connecting rod is provided with a first caster and a first limiting hinge. The first connecting rod is rotatably connected to the first support foot through the first limiting hinge.
[0008] The second connecting rod is equipped with a second caster and a second limiting hinge, and is rotatably connected to the second support foot through the second limiting hinge;
[0009] A switching device, comprising a switching component and a connecting rod assembly, wherein a first connecting rod is connected to a second connecting rod via the connecting rod assembly, and the switching component is disposed between the first connecting rod and the second connecting rod;
[0010] The tripod has a moving state and a stationary state: in the moving state, the switching component locks the first connecting rod and the second connecting rod, and the first caster and the second caster protrude from the bottom of the first support foot and the second support foot; in the stationary state, the switching component unlocks the first connecting rod and the second connecting rod, and the first support foot and the second support foot protrude from the bottom of the first caster and the second caster; the switching component is used to switch the tripod between the moving state and the stationary state.
[0011] The tripod according to the embodiments of this application has at least the following beneficial effects:
[0012] The tripod of this application includes two sets of support structures, each including a first support leg, a second support leg, a first connecting rod, a second connecting rod, and a switching device. The first and second support legs are arranged parallel to each other and are located at opposite ends of the tripod, serving as load-bearing fulcrums. The first connecting rod has a first limiting hinge, through which it is rotatably connected to the first support leg. The second connecting rod has a second limiting hinge, through which it is rotatably connected to the second support leg. The first limiting hinge allows the first connecting rod to rotate within a preset angle range around the first limiting hinge; similarly, the second limiting hinge allows the second connecting rod to rotate within a preset angle range around the second limiting hinge. The first connecting rod has a first caster, and the second connecting rod has a second caster. The switching device includes a switching component and a connecting rod assembly. The first connecting rod is connected to the second connecting rod through the connecting rod assembly, and the switching component is disposed between the first and second connecting rods. The tripod has a moving state and a stationary state. In the moving state, the switching component locks the first and second connecting rods. The included angle of the first and second limiting hinges is 90 degrees. The first and second connecting rods are parallel to each other. The first and second casters protrude from the bottom of the first and second support feet. The first and second casters are in contact with the ground, while the first and second support feet are suspended in the air, allowing the tripod to move. In the stationary state, the switching component unlocks the first and second connecting rods. The first and second limiting hinges respectively drive the first and second connecting rods to rotate by a preset angle, causing the first and second support feet to protrude from the bottom of the first and second casters. The first and second casters are suspended in the air, while the first and second support feet are in contact with the ground, making the tripod stable and stationary. When switching from a moving state to a stationary state, the locking between the first and second connecting rods is released by the switching component. The first and second casters are subjected to a reaction force from the ground, which drives the first and second connecting rods to rotate. Under the action of the first limiting hinge, the first connecting rod is raised to a preset angle, and the first caster gradually lifts off the ground. At the same time, the first connecting rod drives the second connecting rod to move upward through the linkage assembly. Under the action of the second limiting hinge, the second connecting rod is also raised to a preset angle. The first and second casters are suspended in the air, allowing the first and second support feet to re-contact the ground. When switching from a stationary state to a moving state, an external force is applied to lift the legs. The switching device drives the first and second connecting rods to rotate to a parallel state. The switching device locks the first and second connecting rods, restricting their rotation. Then, the external force is removed, allowing the first and second casters to rest on the ground for support. The suspension of the first and second support feet facilitates the movement of the furniture. The tripod of this application uses a limiting hinge between the connecting rod and the supporting leg to allow the connecting rod to rotate within a preset angle range, thereby enabling the casters to be raised and placed on the ground in different states, and the supporting leg and caster to switch the force.The linkage assembly ensures that the movement of one connecting rod synchronously drives the movement of the other, guaranteeing coordination during switching and effectively preventing asynchrony. The switching assembly controls the locking and unlocking of the connecting rods, allowing for tool-free switching between moving and stationary states, making it convenient and efficient. Limit hinges automatically lock when the connecting rod rotates to a preset angle, further ensuring the stability of the tripod in a stationary state and preventing excessive lifting of the connecting rods that could cause operational difficulties.
[0013] According to some embodiments of this application, the first connecting rod is provided with a first groove, and the second connecting rod is provided with a second groove. In the moving state, the first groove and the second groove are arranged opposite to each other to form a receiving cavity, and the connecting rod assembly is placed in the receiving cavity.
[0014] According to some embodiments of this application, the linkage assembly includes a first linkage, a second linkage, and a slider. The second groove is provided with a sliding groove. One end of the first linkage is fixedly disposed in the first groove. The other end of the first linkage is hinged to one end of the second linkage. The other end of the second linkage is connected to the slider. The slider is slidably disposed in the sliding groove.
[0015] According to some embodiments of this application, the switching assembly includes a rotating component, a locking component, a limiting component, an elastic component, and a foot pedal. The rotating component is fixedly mounted on the first connecting rod, and the foot pedal is rotatably mounted on the rotating component. The locking component is fixedly mounted on the second connecting rod. One end of the foot pedal has a locking portion, which is detachably connected to the locking component, so that the first connecting rod and the second connecting rod are detachably connected. One end of the elastic component is connected to the first connecting rod, and the other end of the elastic component is connected to the foot pedal. The elastic component and the locking component are respectively disposed on both sides of the foot pedal. The limiting component is disposed on the first connecting rod on the same side of the elastic component, and the limiting component is used to limit the rotation angle of the foot pedal.
[0016] According to some embodiments of this application, the other end of the foot pedal is provided with a foot pedal portion, which is bent toward one side of the locking component.
[0017] According to some embodiments of this application, the first limiting hinge and the second limiting hinge each include a main body, the main body including the first hinge and the second hinge, the first hinge is provided with a first fixing plate, the first fixing plate is provided with a first snap-fit portion, the second hinge is provided with a second fixing plate, the second fixing plate is provided with a second snap-fit portion, the first snap-fit portion and the second snap-fit portion are detachably connected, so that the first fixing plate and the second fixing plate are detachably connected.
[0018] According to some embodiments of this application, the first snap-fit portion is configured as two positioning posts, the second snap-fit portion is configured as a through hole, and the ends of the two positioning posts are detachably disposed in the through hole.
[0019] According to some embodiments of this application, the first limiting hinge and the second limiting hinge are hydraulic limiting hinges, and a hydraulic component is provided between the first hinge and the second hinge.
[0020] According to some embodiments of this application, both the first caster and the second caster are configured as swivel wheels.
[0021] Furniture according to a second aspect of this application includes the legs described in the above embodiments. Attached Figure Description
[0022] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0023] Figure 1 This is a schematic diagram of the structure of a tripod in a stationary state according to an embodiment of this application;
[0024] Figure 2 for Figure 1 Another structural diagram from a different angle;
[0025] Figure 3 This is a schematic diagram of the structure of a tripod in a movable state according to an embodiment of this application;
[0026] Figure 4 for Figure 3 Another structural diagram from a different angle;
[0027] Figure 5 for Figure 2 Enlarged schematic diagram of section I;
[0028] Figure 6 for Figure 4 Enlarged schematic diagram of Part II;
[0029] Figure 7 This is a schematic diagram of the structure of a hydraulic limiting hinge according to an embodiment of this application;
[0030] Figure 8 for Figure 1 Enlarged schematic diagram of Part III;
[0031] Figure 9 for Figure 3 Enlarged schematic diagram of section IV;
[0032] Figure 10 This is a structural schematic diagram of a furniture according to an embodiment of this application.
[0033] Figure label:
[0034] First support leg 11; Second support leg 12; First connecting rod 13; First groove 131; Second connecting rod 14; Second groove 141; Slide groove 142; First limiting hinge 15; First hinge 151; Second hinge 152; First fixing plate 153; Second fixing plate 154; Positioning post 155; Through hole 156; Hydraulic component 157; Baffle 158; Second limiting hinge 16; First caster 17; Second caster 18;
[0035] First link 21; Second link 22; Slider 23;
[0036] Rotating component 31; locking component 32; limiting component 33; elastic component 34; foot pedal component 35; locking part 351; foot pedal part 352;
[0037] Cabinet 4;
[0038] First card connector 51; second card connector 52. Detailed Implementation
[0039] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0040] In the description of this application, it should be understood that the use of terms such as "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings and is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0042] The following reference Figures 1 to 10 Describes the tripod and furniture in the embodiments of this application.
[0043] according to Figures 1 to 4 As shown, one embodiment of the tripod of this application includes at least two sets of support structures, wherein the support structure includes a first support leg 11, a second support leg 12, a first connecting rod 13, a second connecting rod 14, and a switching device. The first support leg 11 and the second support leg 12 are arranged parallel to each other and are located at both ends of the tripod, serving as load-bearing fulcrums when the tripod is in a static state. The first connecting rod 13 is provided with a first limiting hinge 15, and the first connecting rod 13 is rotatably connected to the first support leg 11 through the first limiting hinge 15. The second connecting rod 14 is provided with a second limiting hinge 16, and the second connecting rod 14 is rotatably connected to the second support leg 12 through the second limiting hinge 16. The first limiting hinge 15 allows the first connecting rod 13 to rotate within a preset angle range around the first limiting hinge 15. Similarly, the second limiting hinge 16 allows the second connecting rod 14 to rotate within a preset angle range around the second limiting hinge 16. The first connecting rod 13 is provided with a first caster 17, and the second connecting rod 14 is provided with a second caster 18. The first caster 17 and the second caster 18 are used as load-bearing fulcrums when the tripod is in a moving state, supporting the tripod to roll and move on the ground.
[0044] The tripod has a moving state and a stationary state. A switching device is used to control the switching between the moving and stationary states of the tripod. The switching device includes a switching assembly and a linkage assembly. The linkage assembly is used to link the first connecting rod 13 and the second connecting rod 14. The first connecting rod 13 is connected to the second connecting rod 14 through the linkage assembly. When the angle of the first connecting rod 13 changes, the second connecting rod 14 responds synchronously. The switching assembly is located between the first connecting rod 13 and the second connecting rod 14. The switching assembly is used to control the locking and unlocking states of the first connecting rod 13 and the second connecting rod 14.
[0045] like Figure 1 and Figure 2As shown, when the stand is stationary, the switching component unlocks the first connecting rod 13 and the second connecting rod 14, putting them in an upward-raised state. Through the angle limiting functions of the first limiting hinge 15 and the second limiting hinge 16, the first connecting rod 13 and the second connecting rod 14 are stably maintained at an angle of approximately 15 to 20 degrees. This causes the first support leg 11 and the second support leg 12 to protrude beyond the bottom of the first caster 17 and the second caster 18. The first caster 17 and the second caster 18 are lifted off the ground and suspended in mid-air, while the first support leg 11 and the second support leg 12 remain in contact with the ground. The stand is entirely supported by the first support leg 11 and the second support leg 12, effectively preventing the stand from sliding and achieving stable stillness. This stationary state is suitable for fixed placement scenarios during furniture use.
[0046] like Figure 3 and Figure 4 As shown, when the tripod is in the moving state, the included angles at both ends of the first limiting hinge 15 and the second limiting hinge 16 are both 90 degrees. The switching component locks the first connecting rod 13 and the second connecting rod 14, making the first connecting rod 13 and the second connecting rod 14 parallel to each other and in a horizontal state. The first caster 17 and the second caster 18 protrude from the bottom of the first support leg 11 and the second support leg 12. The first caster 17 and the second caster 18 are in contact with the ground, while the first support leg 11 and the second support leg 12 are suspended in the air. The tripod is completely supported by the first caster 17 and the second caster 18, which facilitates the movement of the tripod. The moving state is suitable for scenarios where furniture is moved.
[0047] When the tripod switches from a moving state to a stationary state, the locking between the first connecting rod 13 and the second connecting rod 14 is released by the switching component. The first caster 17 and the second caster 18 are subjected to the reaction force from the ground, which drives the first connecting rod 13 and the second connecting rod 14 to rotate. The first connecting rod 13 is raised to between approximately 15 and 20 degrees under the action of the first limiting hinge 15. The first limiting hinge 15 automatically locks, and the first caster 17 is gradually lifted off the ground. At the same time, the first connecting rod 13 drives the second connecting rod 14 to move upward through the linkage assembly. The second connecting rod 14 is also raised to between approximately 15 and 20 degrees under the action of the second limiting hinge 16. The second limiting hinge 16 automatically locks, and the first caster 17 and the second caster 18 are suspended in the air, so that the first support leg 11 and the second support leg 12 are in contact with the ground again.
[0048] When switching from a static state to a mobile state, an external force is applied to lift the legs. The switching device drives the first connecting rod 13 and the second connecting rod 14 to rotate to a parallel state. The switching component locks the first connecting rod 13 and the second connecting rod 14, restricting their rotation. The external force is removed, allowing the first caster 17 and the second caster 18 to rest on the ground for support. The first support leg 11 and the second support leg 12 are suspended in the air, facilitating the movement of the furniture product.
[0049] In the prior art, some furniture has casters at the bottom for movement. However, due to the lack of effective state switching and structural linkage, the casters can only be used continuously for support. Prolonged use will affect the lifespan of the casters, requiring frequent replacement. Since casters are often installed at the bottom of the furniture, replacement is extremely inconvenient. This application uses a linkage assembly to achieve coordinated control of the first connecting rod 13 and the second connecting rod 14, allowing one connecting rod to drive the other connecting rod to move synchronously. The lifting angles of the first connecting rod 13 and the second connecting rod 14 are controlled by the first limiting hinge 15 and the second limiting hinge 16, respectively, to prevent excessive lifting of the first connecting rod 13 and the second connecting rod 14. A switching assembly allows the frame to quickly and smoothly switch between a stationary and moving state, enabling the casters and supporting legs to switch support, greatly increasing the flexibility, convenience, and lifespan of the frame.
[0050] according to Figure 5 and Figure 6 As shown, in one embodiment of this application, the first connecting rod 13 is provided with a first groove 131, which extends along the length of the first connecting rod 13. The second connecting rod 14 is provided with a second groove 141, which extends along the length of the second connecting rod 14. The structures of the first groove 131 and the second groove 141 are similar, and both ends of the connecting rod assembly are respectively housed in the first groove 131 and the second groove 141. In the moving state, the first groove 131 and the second groove 141 are arranged opposite to each other to form a receiving cavity, and the connecting rod assembly is placed in the receiving cavity. By providing the first groove 131 and the second groove 141 on the first connecting rod 13 and the second connecting rod 14, and embedding the connecting rod assembly therein, the hidden arrangement of the connecting rod assembly is achieved, avoiding the problem of easy damage of traditional exposed connecting rods, and improving the overall aesthetics and reliability of the tripod.
[0051] Existing furniture legs typically use independent left and right side movements during mode switching, leading to asynchronous action of the casters on both sides. This can cause one side to lag behind, resulting in uneven force distribution and a shift in the leg's center of gravity, affecting structural stability and smooth operation. According to... Figure 2 , Figures 4 to 6 As shown, in one embodiment of this application, the linkage assembly includes a first link 21, a second link 22, and a slider 23. The second groove 141 is provided with a sliding groove 142. One end of the first link 21 is fixedly installed in the first groove 131. The other end of the first link 21 is connected to one end of the second link 22 through a hinge structure. The other end of the second link 22 is connected to the slider 23. The slider 23 is slidably disposed in the sliding groove 142 in the second groove 141 of the second connecting rod 14. The sliding groove 142 is used to restrict the slider 23 from sliding along the length direction of the second connecting rod 14.
[0052] When the tripod switches from a moving state to a stationary state, the locking between the first connecting rod 13 and the second connecting rod 14 is released via the switching component. The first caster 17 and the second caster 18 receive a reaction force from the ground, causing the first connecting rod 13 and the second connecting rod 14 to rotate. The first connecting rod 13 rises to approximately 15 to 20 degrees under the action of the first limiting hinge 15, which automatically locks. The first caster 17 gradually lifts off the ground, and simultaneously, the second connecting rod 14 also rises under the action of the second limiting hinge 16. A connecting rod 13 drives one end of the first connecting rod 21 to move upward. The first connecting rod 21 drives the second connecting rod 22 to move upward. The second connecting rod 22 causes the slider 23 to slide to the left in the slide groove 142. The sliding of the slider 23 further drives the second connecting rod 14 to move upward. The first connecting rod 13 drives the second connecting rod 14 to move upward through the connecting rod assembly. The second connecting rod 14 rotates to between approximately 15 and 20 degrees, and the second limit hinge 16 automatically locks, suspending the first caster 17 and the second caster 18 in the air, allowing the first support foot 11 and the second support foot 12 to re-contact the ground. Through the combination of the first connecting rod 21, the second connecting rod 22, and the slider 23, the first connecting rod 13 and the second connecting rod 14 achieve synchronous rotation, thereby achieving synchronous upward movement of the first caster 17 and the second caster 18, and synchronous downward movement of the first support foot 11 and the second support foot 12. This ensures consistent structural action during state switching, avoids uneven force distribution and the problem of one side rotating lagging behind, and effectively improves the overall reliability and smoothness of operation of the tripod.
[0053] according to Figures 1 to 6 As shown, in one embodiment of this application, the switching assembly includes a rotating component 31, a locking component 32, a limiting component 33, an elastic component 34, and a foot pedal 35. A first connecting rod 13 has a first side, and a second connecting rod 14 has a first side. The first sides of the first connecting rod 13 and the first sides of the second connecting rod 14 are on the same plane. The rotating component 31, locking component 32, limiting component 33, and elastic component 34 are all disposed on this plane. The rotating component 31 is fixedly disposed on the first connecting rod 13, and the middle portion of the foot pedal 35 is rotatably disposed on the rotating component 31. The locking component 32 is fixedly disposed on the second connecting rod 14. One end of the foot pedal 35 is provided with a locking portion 351, which has a hook-shaped structure. The locking portion 351 and the locking component 32 are detachably connected, and the first connecting rod 13 and the second connecting rod 14 are detachably connected through the cooperation of the locking portion 351 and the locking component 32. When the tripod is in a moving state, the locking part 351 and the locking component 32 engage and lock together, and the first connecting rod 13 and the second connecting rod 14 achieve a reliable locking connection through the locking engagement of the foot pedal 35 and the locking component 32.
[0054] One end of the elastic component 34 is connected to the first connecting rod 13, and the other end of the elastic component 34 is connected to the foot pedal 35. The elastic component 34 and the locking component 32 are respectively disposed on both sides of the foot pedal 35. After switching from the moving state to the stationary state, the foot pedal 35 rotates to unlock the locking part 351 from the locking component 32. The elastic component 34 is used to automatically rotate the rotated foot pedal 35 back to the initial position, which facilitates the subsequent switching of the tripod from the stationary state to the moving state.
[0055] The limiting component 33 is disposed on the first connecting rod 13 on the same side as the elastic component 34. The limiting component 33 is used to limit the rotation angle of the foot pedal 35 and prevent the foot pedal 35 from rotating excessively under the elastic force of the elastic component 34 after it is disengaged from the locking component 32.
[0056] When the tripod is in a moving state, the foot pedal 35 is engaged and locked with the locking component 32 on the second connecting rod 14 through the locking part 351, thereby keeping the first connecting rod 13 and the second connecting rod 14 in a parallel state and locking them, the first caster 17 and the second caster 18 are in contact with the ground, and the first support foot 11 and the second support foot 12 are suspended in the air.
[0057] When the tripod switches from a moving state to a stationary state, force is applied to the foot pedal 35, causing the foot pedal 35 to rotate around the first direction, thereby unlocking and disengaging the locking part 351 on the foot pedal 35 from the locking part 32 on the second connecting rod 14. At the same time, the elastic part 34 is stretched. After the force is removed, the foot pedal 35 rotates around the second direction (opposite to the first direction) under the rebound force of the elastic part 34. The limiting part 33 abuts against and limits the rotation angle of the foot pedal 35, and finally the foot pedal 35 returns to its initial position.
[0058] When the tripod switches from a stationary state to a moving state, force is applied to the first connecting rod 13, causing the foot pedal 35 to move down, and the locking part 351 of the foot pedal 35 re-engages and locks with the locking part 32 of the second connecting rod 14.
[0059] The switching assembly of this application, through the automatic reset of the elastic component 34 and the limiting rotation angle of the limiting component, can ensure the smooth detachable switching of the foot pedal 352 and the locking component 32 during the switching between moving and stationary states. The overall structure is stable and reliable, and can be frequently switched.
[0060] In some embodiments, the rotating component 31 is specifically configured as a rotating pin, and the foot pedal 35 has a through hole in the middle, through which the rotating pin passes, and the foot pedal 35 can rotate around the rotating pin.
[0061] In some embodiments, the locking portion 351 has a hook portion and an arc-shaped portion. The hook portion is used to engage and lock the locking portion 351 with the locking component 32 in the moving state. The arc-shaped portion is used when switching from a stationary state to a moving state, the first connecting rod 13 is pressed down, the arc-shaped portion of the locking portion 351 first contacts the locking component 32, and then the locking component 32 moves along the trajectory of the arc-shaped portion to the hook portion to achieve locking. The arc-shaped portion makes the switching process between the stationary and moving states of the tripod smoother.
[0062] In some embodiments, the elastic member 34 is specifically configured as a spring.
[0063] In some embodiments, the limiting component 33 is specifically configured as a limiting pin.
[0064] In some embodiments, the rotating component 31 and the limiting component 33 can be integrated with the first connecting rod 13, and the locking component 32 can be integrated with the second connecting rod 14.
[0065] according to Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown in one embodiment of this application, the other end of the foot pedal 35 is provided with a foot pedal portion 352, which is a plate-like structure and is bent towards the locking component 32. When the footrest switches from a moving state to a stationary state, force is applied to the bent foot pedal portion 352. During the application of force, the foot pedal 35 rotates around the rotating component 31, causing the locking portion 351 on the foot pedal 35 to disengage from the locking component 32 on the second connecting rod 14, thereby unlocking the foot pedal portion 352. The bent design of the foot pedal portion 352 makes the foot pedaling action more ergonomic, the required force direction more natural, and the unlocking process more convenient.
[0066] In some embodiments, the foot pedal 352 is also provided with anti-slip texture to improve the stability and comfort of stepping.
[0067] When stationary, the connecting rod often lacks effective angle control, easily resulting in excessive upward tilting. When the user switches the tripod from stationary to mobile mode, the foot pedal 35 is at an unfavorable upward angle, making it difficult to apply downward pressure with the foot. This leads to laborious switching operations, impacting user experience and efficiency. According to... Figures 1 to 4 , Figures 7 to 9As shown, in one embodiment of this application, the first limiting hinge 15 and the second limiting hinge 16 each include a main body. The main body includes a first hinge 151 and a second hinge 152. The first hinge 151 is fixedly mounted on the first support leg 11, and the second hinge 152 is fixedly mounted on the first connecting rod 13. The first hinge 151 is provided with a first fixing plate 153, and the first fixing plate 153 is provided with a first snap-fit portion 51. The second hinge 152 is provided with a second fixing plate 154, and the second fixing plate 154 is provided with a second snap-fit portion 52. The first snap-fit portion 51 and the second snap-fit portion 52 are detachably connected. The first fixing plate 153 and the second fixing plate 154 are detachably connected through the cooperation of the first snap-fit portion 51 and the second snap-fit portion 52.
[0068] When the tripod switches from a moving state to a stationary state, the first connecting rod 13 rotates around the first limiting hinge 15, and the first hinge 151 and the second hinge 152 gradually approach each other, causing the first fixing plate 153 and the second fixing plate 154 to gradually approach each other until the first locking part 51 on the first fixing plate 153 contacts and locks with the second locking part 52 on the second fixing plate 154. That is, the first connecting rod 13 rotates to a preset position (about 15 to 20 degrees), completing the switch to the stationary state.
[0069] When the tripod switches from a stationary state to a moving state, force is applied to the first connecting rod 13, the first locking part 51 and the second locking part 52 are unlocked and disengaged, the first fixing plate 153 and the second fixing plate 154 move away from each other, the first hinge 151 and the second hinge 152 move away from each other until the first hinge 151 and the second hinge 152 are at 90 degrees, and the first connecting rod 13 is in a horizontal state.
[0070] Similarly, such as Figures 1 to 4 , Figure 7 As shown, the second limiting hinge 16 includes a first hinge (not shown) and a second hinge 152. The first hinge is fixedly mounted on the second support leg 12, and the second hinge 152 is fixedly mounted on the second connecting rod 14. The first hinge is provided with a first fixing plate 153, which has a first locking part 51. The second hinge 152 is provided with a second fixing plate 154, which has a second locking part (not shown). The first locking part 51 and the second locking part are detachably connected, and the first fixing plate 153 and the second fixing plate 154 are detachably connected through the cooperation of the first locking part 51 and the second locking part.
[0071] When the tripod switches from a moving state to a stationary state, the second connecting rod 14 rotates around the second limiting hinge 16, and the first and second hinges gradually approach each other, causing the first and second fixing plates to gradually approach each other until the first locking part on the first fixing plate contacts and locks with the second locking part on the second fixing plate. That is, the second connecting rod 14 rotates to a preset position (about 15 to 20 degrees), completing the switch to the stationary state.
[0072] When the tripod switches from a stationary state to a moving state, force is applied to the first connecting rod 13, causing the second connecting rod 14 to rotate. The first and second locking parts unlock and disengage, the first fixing plate 153 and the second fixing plate 154 move away from each other, and the first hinge 151 and the second hinge 152 move away from each other until the first hinge 151 and the second hinge 152 are at a 90-degree angle, the second connecting rod 14 is in a horizontal state, and the first connecting rod 13 and the second connecting rod 14 are parallel to each other.
[0073] By setting the first limiting hinge 15 and the second limiting hinge 16, the first connecting rod 13 and the second connecting rod 14 can be prevented from being raised excessively. After the first connecting rod 13 and the second connecting rod 14 are raised to a preset angle (15 degrees to 20 degrees), they will automatically lock. This ensures that the casters are effectively lifted off the ground and also maintains the foot pedal 35 on the first connecting rod 13 within the controllable range, making it easier to step on and apply force, thus improving the safety and ease of operation of the tripod.
[0074] according to Figures 7 to 9 As shown, in one embodiment of this application, the first snap-fit portion is configured as two symmetrically arranged positioning posts 155, the ends of which are arc-shaped to improve the smoothness of the snap-fit. The second snap-fit portion is configured as a through hole 156, which can simultaneously accommodate the ends of the two positioning posts 155, and the ends of the two positioning posts 155 are detachably disposed within the through hole 156.
[0075] When the tripod switches from a moving state to a stationary state, the first connecting rod 13 rotates around the first limiting hinge 15, and the first hinge 151 and the second hinge 152 gradually approach each other, causing the first fixing plate 153 and the second fixing plate 154 to gradually approach each other until the ends of the two positioning posts 155 on the first fixing plate 153 are engaged in the through hole 156 on the second fixing plate 154, completing the engagement. The through hole 156 locks the positioning posts 155, thereby locking the first fixing plate 153 and the second fixing plate 154. Furthermore, the first hinge 151 and the second hinge 152 are locked, that is, the first connecting rod 13 rotates to a preset position (about 15 degrees to 20 degrees) and stops rotating and locks, completing the switch to the stationary state.
[0076] When the tripod switches from a stationary state to a moving state, force is applied to the first connecting rod 13, the positioning post 155 disengages from the through hole 156, the first fixing plate 153 and the second fixing plate 154 move away from each other, and the first hinge 151 and the second hinge 152 move away from each other until the first hinge 151 and the second hinge 152 are at 90 degrees and the first connecting rod 13 is in a horizontal state.
[0077] The structure of the second limiting hinge 16 is the same as that of the first limiting hinge 15. The detachable engagement of the positioning post 155 and the through hole 156 ensures a stable connection while providing good detachability, facilitating quick switching between the connection states of the connecting rod and the support leg.
[0078] In some embodiments, the second fixing plate 154 is provided with a guide slope at the edge facing the first fixing plate 153. The guide slope enables the end of the positioning post 155 to enter the through hole 156 on the second fixing plate 154 more smoothly, avoiding jamming.
[0079] In some embodiments, four first fixing plates 153 are provided, and the four first fixing plates 153 are used to fix two positioning posts 155. A baffle 158 is provided between two adjacent first fixing plates 153 in the middle. The baffle 158 is used to prevent the second fixing plate 154 from rotating excessively, thereby effectively preventing the first connecting rod 13 from rotating excessively and lifting. At the same time, the baffle 158 can also improve the overall structural rigidity of the limiting hinge.
[0080] according to Figure 7 As shown, in one embodiment of this application, the first limiting hinge 15 and the second limiting hinge 16 are both hydraulic limiting hinges. A hydraulic component 157 is provided between the first hinge 151 and the second hinge 152. The hydraulic component 157 is used to provide buffer damping during the rotation of the connecting rod (including the first connecting rod 13 and the second connecting rod 14), so that the connecting rod slowly tilts upward and avoids instantaneous lifting that could cause impact or jamming.
[0081] according to Figures 1 to 4 As shown, in one embodiment of this application, both the first caster 17 and the second caster 18 are configured as swivel casters. The swivel casters facilitate the movement of the tripod.
[0082] according to Figures 1 to 9 As shown, one embodiment of the furniture in this application includes the legs described in the above embodiment.
[0083] In some embodiments, such as Figure 10 As shown, the furniture can be specifically set as cabinet 4, and the legs are used to support cabinet 4.
[0084] In the description of this specification, the use of terms such as "an embodiment," "some examples," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0085] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.
Claims
1. A footrest, characterised in that: It includes at least two sets of support structures, the support structures including: First supporting leg; The second support leg is spaced apart from the first support leg. The first connecting rod is provided with a first caster and a first limiting hinge. The first connecting rod is rotatably connected to the first support foot through the first limiting hinge. The second connecting rod is equipped with a second caster and a second limiting hinge, and is rotatably connected to the second support foot through the second limiting hinge; A switching device, comprising a switching component and a connecting rod assembly, wherein a first connecting rod is connected to a second connecting rod via the connecting rod assembly, and the switching component is disposed between the first connecting rod and the second connecting rod; The tripod has a moving state and a stationary state: in the moving state, the switching component locks the first connecting rod and the second connecting rod, and the first caster and the second caster protrude from the bottom of the first support foot and the second support foot; in the stationary state, the switching component unlocks the first connecting rod and the second connecting rod, and the first support foot and the second support foot protrude from the bottom of the first caster and the second caster; the switching component is used to switch the tripod between the moving state and the stationary state.
2. The footrest according to claim 1, characterized in that: The first connecting rod has a first groove, and the second connecting rod has a second groove. In the moving state, the first groove and the second groove are arranged opposite to each other to form a receiving cavity, and the connecting rod assembly is placed in the receiving cavity.
3. The footrest of claim 2, wherein: The linkage assembly includes a first linkage, a second linkage, and a slider. The second groove is provided with a sliding groove. One end of the first linkage is fixedly disposed in the first groove. The other end of the first linkage is hinged to one end of the second linkage. The other end of the second linkage is connected to the slider. The slider is slidably disposed in the sliding groove.
4. The footrest of claim 1, wherein: The switching assembly includes a rotating component, a locking component, a limiting component, an elastic component, and a foot pedal. The rotating component is fixedly mounted on the first connecting rod, and the foot pedal is rotatably mounted on the rotating component. The locking component is fixedly mounted on the second connecting rod, and one end of the foot pedal has a locking portion that is detachably connected to the locking component, allowing the first connecting rod and the second connecting rod to be detachably connected. One end of the elastic component is connected to the first connecting rod, and the other end of the elastic component is connected to the foot pedal. The elastic component and the locking component are respectively located on both sides of the foot pedal. The limiting component is located on the first connecting rod on the same side of the elastic component and is used to limit the rotation angle of the foot pedal.
5. The footrest of claim 4, wherein: The other end of the foot pedal is provided with a foot pedal part, which is bent toward one side of the locking component.
6. The footrest of claim 1, wherein: The first limiting hinge and the second limiting hinge each include a main body. The main body includes a first hinge and a second hinge. The first hinge is provided with a first fixing plate and a first snap-fit portion. The second hinge is provided with a second fixing plate and a second snap-fit portion. The first snap-fit portion and the second snap-fit portion are detachably connected, so that the first fixing plate and the second fixing plate are detachably connected.
7. The footrest of claim 6, wherein: The first snap-fit part is configured with two positioning posts, and the second snap-fit part is configured with a through hole, with the ends of the two positioning posts being detachably disposed in the through hole.
8. The footrest of claim 6, wherein: The first limiting hinge and the second limiting hinge are hydraulic limiting hinges, and a hydraulic component is provided between the first hinge and the second hinge.
9. The foot prop of claim 1, wherein: Both the first caster and the second caster are swivel casters.
10. Furniture, characterized in that: Including the tripod as described in any one of claims 1 to 9.