Footrest telescopic assembly and electric sofa
By designing a footrest telescopic assembly that includes components such as vertical rods, connecting rods, and electric actuators, the problems of jamming and poor stability in the existing technology have been solved, and a smooth extension and retraction process has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU ZEHUI MACHINERY CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-02
AI Technical Summary
Existing footrest telescopic components are prone to jamming during extension or retraction, resulting in poor structural stability.
A footrest telescopic assembly was designed, comprising a pair of vertical rods spaced apart on the left and right, a connecting rod, an electric actuator, a horizontal rod, an upper rocker arm, a front support rod, and a rear support rod. The extension and retraction states are switched by the electric actuator to ensure that the assembly is not prone to jamming during movement.
The footrest telescopic assembly is designed to prevent jamming during extension or retraction, ensuring structural stability and smooth switching between states to meet usage requirements.
Smart Images
Figure CN224307053U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seat accessories technology, specifically to a footrest telescopic assembly and an electric sofa. Background Technology
[0002] The footrest telescopic assembly is an important component of the seat frame. Existing footrest telescopic assemblies are prone to jamming during extension or retraction, resulting in poor structural stability. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a footrest telescopic component and an electric sofa. The footrest telescopic component is not prone to jamming during the extension or retraction process and has good structural stability.
[0004] To solve the above-mentioned technical problems, this utility model provides a footrest telescopic assembly, including a pair of vertical rods spaced apart to the left and right. A connecting rod is provided between the bottom of the left and right vertical rods. An electric actuator is movably connected to the connecting rod. A horizontal rod is movably connected to the top of the electric actuator. An upper rocker arm is provided on the left and right sides of the horizontal rod. The tail end of the upper rocker arm is movably connected to the top of the vertical rod. A front support rod is movably connected to the front end of the upper rocker arm. A rear support rod is rotatably provided near the front end of the upper rocker arm. A foot support rod is movably connected to the top of the rear support rod. A sliding groove is provided on the foot support rod. A guide rod that slides within the sliding groove is provided at the top of the front support rod. A lower rocker arm is movably connected to the bottom of the rear support rod. The tail end of the lower rocker arm is movably connected to the top of the vertical rod.
[0005] In a further preferred embodiment, the left and right ends of the crossbar are respectively provided with fixing rods, and the front end of the fixing rod is fixed to the middle of the upper rocker arm.
[0006] In a further preferred embodiment, a front rocker arm is movably connected to the end of the guide rod away from the front support rod. A front swing arm is movably connected to the front front rocker arm. A small foot support rod is movably connected to the top of the front swing arm. A rear swing arm is movably connected to the tail end of the small foot support rod. The rear swing arm is rotatably positioned in the middle of the front rocker arm. A rear rocker arm is movably connected to the bottom of the rear swing arm. The rear rocker arm is rotatably positioned in the middle of the front support rod. The tail end of the rear rocker arm is movably connected to the top of the adjacent rear support rod. Small footboards are suitable for installation between the left and right small foot support rods. When the footboard telescopic assembly extends, it can simultaneously cause the small footboards to flip up. When the footboard telescopic assembly retracts, it can simultaneously cause the small footboards to fall down to a vertical position.
[0007] An electric sofa includes the aforementioned footrest telescopic assembly.
[0008] The beneficial effects of this utility model are as follows: The footrest telescopic assembly includes an extended state and a retracted state, which are switched between by an electric actuator. In the initial state, the footrest is suitable for installation between the left and right foot support rods. The footrest is vertically set, and the footrest telescopic assembly is in the retracted state, which allows the user's legs to be lowered. When the electric actuator extends, it causes the footrest to flip up, and the footrest telescopic assembly is in the extended state, which allows the user's legs to be lifted. The footrest telescopic assembly of this utility model is not prone to jamming during extension or retraction, and has good structural stability. Attached Figure Description
[0009] To clearly illustrate the innovative principle of this utility model and its advantages over existing footrest telescopic assemblies, possible embodiments are described below with the aid of accompanying drawings through non-limiting examples applying the stated principle. In the drawings:
[0010] Figure 1 This is a schematic diagram of the telescopic footrest assembly of this utility model in the extended state;
[0011] Figure 2 This is a schematic diagram of the footrest telescopic assembly in its retracted state. Detailed Implementation
[0012] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0013] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention.
[0014] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this new embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0015] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixation," etc., should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Example 1
[0016] like Figure 1 A footrest telescopic assembly includes a pair of vertical rods 1 spaced apart to the left and right. A connecting rod 2 is provided between the bottom of the left and right vertical rods 1. An electric actuator 3 is movably connected to the connecting rod 2. A horizontal rod 4 is movably connected to the top of the electric actuator 3. An upper rocker arm 5 is provided on the left and right sides of the horizontal rod 4. The tail end of the upper rocker arm 5 is movably connected to the top of the vertical rod 1. A front support rod 6 is movably connected to the front end of the upper rocker arm 5. A rear support rod 7 is rotatably provided near the front end of the upper rocker arm 5. A foot support rod 8 is movably connected to the top of the rear support rod 7. A footrest is suitable for installation between the left and right foot support rods 8. A sliding groove 9 is provided on the foot support rod 8. A guide rod 10 is provided at the top of the front support rod 6 and slidably fitted in the sliding groove 9. The sliding groove 9 is used to adapt to the movement trajectory of the guide rod 10. A lower rocker arm 11 is movably connected to the bottom of the rear support rod 7. The tail end of the lower rocker arm 11 is movably connected to the top of the vertical rod 1.
[0017] Preferably, the left and right ends of the crossbar 4 are respectively provided with fixing rods 17, and the front end of the fixing rod 17 is fixed to the middle of the upper rocker arm 5; the overall structure of the footrest telescopic assembly is more compact.
[0018] Preferably, the end of the guide rod 10 furthest from the front support rod 6 is movably connected to a front rocker arm 12, the front end of the front rocker arm 12 is movably connected to a front swing arm 13, the top of the front swing arm 13 is movably connected to a small foot support rod 14, the tail end of the small foot support rod 14 is movably connected to a rear swing arm 15, the rear swing arm 15 is rotatably disposed in the middle of the front rocker arm 12, the bottom of the rear swing arm 15 is movably connected to a rear rocker arm 16, the rear rocker arm 16 is rotatably disposed in the middle of the front support rod 6, and the tail end of the rear rocker arm 16 is movably connected to the top of the adjacent rear support rod 7; a small footboard is suitable for installation between the left and right small foot support rods 14, and when the footboard telescopic assembly extends, it can simultaneously drive the small footboard to flip up; when the footboard telescopic assembly retracts, it can simultaneously drive the small footboard to fall down to a vertical position. Example 2
[0019] An electric sofa includes the footrest telescopic assembly described in Example 1.
[0020] The footrest telescopic assembly includes an extended state and a retracted state, and is driven by an electric actuator 3 to switch between the extended and retracted states; in the initial state, as Figure 2 A footrest is installed between the left and right foot support rods 8. This footrest is vertically positioned, and its telescopic assembly is in the retracted state, allowing the user's legs to rest comfortably. Figure 1The push rod of the electric push rod 3 extends, causing the footrest to flip up. At this time, the footrest telescopic assembly is in the extended state, which can lift the user's legs and feet. The footrest telescopic assembly of this embodiment is not prone to jamming during the extension or retraction process, and has good structural stability.
[0021] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A footrest telescopic assembly, characterized in that: It includes a pair of vertical rods (1) spaced apart on the left and right. A connecting rod (2) is provided between the bottom of the left and right vertical rods (1). An electric push rod (3) is movably connected to the connecting rod (2). A horizontal rod (4) is movably connected to the top of the electric push rod (3). An upper rocker arm (5) is provided on the left and right sides of the horizontal rod (4). The tail end of the upper rocker arm (5) is movably connected to the top of the vertical rod (1). A front support rod (6) is movably connected to the front end of the upper rocker arm (5). A rear support rod (7) is rotatably provided near the front end of the upper rocker arm (5). A foot support rod (8) is movably connected to the top of the rear support rod (7). A sliding groove (9) is provided on the foot support rod (8). A guide rod (10) is slidably fitted in the sliding groove (9) at the top of the front support rod (6). A lower rocker arm (11) is movably connected to the bottom of the rear support rod (7). The tail end of the lower rocker arm (11) is movably connected to the top of the vertical rod (1).
2. The footrest telescopic assembly according to claim 1, characterized in that: The left and right ends of the crossbar (4) are respectively provided with fixing rods (17), and the front end of the fixing rod (17) is fixed to the middle of the upper rocker arm (5).
3. The footrest telescopic assembly according to claim 1, characterized in that: The guide rod (10) is movably connected to a front rocker arm (12) at the end away from the front support rod (6). The front end of the front rocker arm (12) is movably connected to a front swing arm (13). The top of the front swing arm (13) is movably connected to a small foot support rod (14). The tail end of the small foot support rod (14) is movably connected to a rear swing arm (15). The rear swing arm (15) is rotatably disposed in the middle of the front rocker arm (12). The bottom of the rear swing arm (15) is movably connected to a rear rocker arm (16). The rear rocker arm (16) is rotatably disposed in the middle of the front support rod (6). The tail end of the rear rocker arm (16) is movably connected to the top of the adjacent rear support rod (7).
4. An electric sofa, characterized in that: The electric sofa includes the footrest telescopic assembly as described in any one of claims 1-3.