Sofa capable of limiting lifting of frame

Abstract

The utility model discloses a sofa with a lifting and limiting frame, which relates to the technical field of sofas, and comprises a sofa seat, a servo motor is arranged in the sofa seat, a rotating column is arranged at the output end of the servo motor, a first bevel gear is fixedly connected to the side wall of the rotating column, and the first bevel gear is in meshed connection with a second bevel gear. One end of the second bevel gear is fixedly connected with a two-way threaded rod, the side wall of the two-way threaded rod is in threaded connection with two sliding blocks, the upper ends of the sliding blocks are fixedly connected with two first rotating bases, the first rotating bases are rotationally connected with connecting rods, and the ends, away from the first rotating bases, of the connecting rods are rotationally connected with second rotating bases; according to the lifting mechanism, the single servo motor is used for simultaneously driving the six connecting rods to support the lifting of the sofa frame, so that the lifting stability of the sofa frame is higher, and the lifting mechanism is simple in structure, easy to operate and convenient to produce and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of sofas, in particular to a sofa with a lifting and limiting frame. Background Art

[0002] With the development of science and technology and the improvement of people's living standards, people have higher and higher requirements for the versatility of seating units. Some of these seats have a lifting function to facilitate elderly people with inconvenient legs and feet and poor waist strength to stand up from the sofa.

[0003] Chinese patent document CN213308561U discloses a sofa frame lifting and limiting mechanism, including a base frame and a lifting assembly, the lifting assembly includes a lifting connection plate, a first lifting link, a second lifting link and a support seat, the support seat is fixedly connected to the base frame, one end of the first lifting link and the second lifting link are respectively rotatably connected to the support seat, and the other end of the first lifting link and the second lifting link are respectively rotatably connected to the lifting connection plate; the lifting assembly is divided into two groups and symmetrically arranged along the center plane of the base frame, the first lifting link is located below the second lifting link, and a first stabilizing link is arranged between the two first lifting links, and the first stabilizing link is used to cooperate with the base frame to limit. The above sofa frame lifting and limiting mechanism has shortcomings. Although the device realizes the lifting of the sofa frame, it has limitations. The setting structure is complex and cumbersome, which is not conducive to production. It increases the production cost and the use cost, and is not conducive to later maintenance.

[0004] Therefore, in order to solve such problems, we propose a sofa with frame lifting and limiting position. Utility Model Content

[0005] The utility model aims to provide a sofa with a lifting and limiting frame, aiming to solve the problem in the above-mentioned background technology that the lifting and limiting mechanism of the existing sofa frame is complicated and cumbersome in use, which is not conducive to production and later maintenance.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sofa with frame lifting and limiting position, comprising a sofa seat, a servo motor is arranged inside the sofa seat, a rotating column is arranged at the output end of the servo motor, a first bevel gear is fixedly connected to the side wall of the rotating column, the first bevel gear is meshingly connected to the second bevel gear, one end of the second bevel gear is fixedly connected to a bidirectional threaded rod, two sliders are threadedly connected to the side wall of the bidirectional threaded rod, the upper ends of the sliders are fixedly connected to two first rotating seats, the first rotating seats are rotatably connected to connecting rods, one end of the connecting rod away from the first rotating seat is rotatably connected to the second rotating seat, and the end of the second rotating seat away from the first rotating seat is fixedly connected to the sofa frame, the servo motor is driven to drive the rotating column to rotate, so that the rotating column drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the bidirectional threaded rod to rotate, the bidirectional threaded rod drives the two sliders to move horizontally and linearly, the sliders respectively drive the first rotating seat to move horizontally and linearly, the first rotating seat drives the connecting rod to rotate, the connecting rod drives the second rotating seat to lift and lower, and the second rotating seat drives the sofa frame to lift and lower.

[0007] Preferably, a first mounting groove is provided at the upper end of the sofa seat, a second mounting groove is provided inside the sofa seat, the first mounting groove is located at the inner bottom wall of the second mounting groove, a spring is provided inside the sofa seat, the spring is located in the second mounting groove, and a baffle is provided at one end of the spring.

[0008] Preferably, a support ring is fixedly connected to the lower end of the sofa seat, and a support pillar is threadedly connected to the support ring.

[0009] Preferably, there are three first bevel gears on the side wall of the rotating column, and each of the first bevel gears is meshedly connected with a second bevel gear.

[0010] Preferably, there are eight second installation grooves in total inside the sofa seat, and there are eight springs in total inside the sofa seat, and the springs are respectively located in the second installation grooves.

[0011] Preferably, the first mounting groove and the baffle are both T-shaped.

[0012] Preferably, a limiting column is arranged inside the sofa seat, and the sliding block is slidably connected to the limiting column.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, a servo motor, a rotating column, a first bevel gear, a second bevel gear, a bidirectional threaded rod, a sliding block, a first rotating seat, a connecting rod and a second rotating seat are provided. A single servo motor is used to simultaneously drive six connecting rods to support the lifting of a sofa frame, so that the lifting stability of the sofa frame is higher, and the structure is simple and easy to operate, and is convenient for production and maintenance. Secondly, a baffle and a spring are provided to avoid exposure of the internal structure of the sofa seat and increase the aesthetics of the sofa. Secondly, a supporting ring and a pillar are provided to adjust the height of the sofa seat, thereby increasing the scope of application and increasing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a sofa with a frame lifting and limiting position proposed by the utility model Figure 1 ;

[0016] Figure 2 A three-dimensional diagram of a sofa with a frame lifting and limiting position proposed by the utility model Figure 2 ;

[0017] Figure 3 This is a three-dimensional exploded schematic diagram of the internal structure of a sofa with a frame lifting and limiting position proposed by the utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of the internal structure of a sofa with a frame lifting and limiting position proposed by the utility model;

[0019] Figure 5 The utility model discloses a three-dimensional schematic diagram of a sofa frame in a sofa with frame lifting and limiting position.

[0020] Legend:

[0021] 1. Sofa seat; 101. First mounting slot; 102. Second mounting slot; 11. Spring; 12. Baffle; 13. Servo motor; 131. Rotating column; 132. First bevel gear; 133. Second bevel gear; 134. Bidirectional threaded rod; 135. Slider; 136. First rotating seat; 137. Connecting rod; 138. Second rotating seat; 14. Limiting column; 2. Sofa frame; 3. Support ring; 31. Pillar. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Reference Figure 1-5 The utility model provides an embodiment: a sofa with frame lifting and limiting, comprising a sofa seat 1, a servo motor 13 is arranged inside the sofa seat 1, a rotating column 131 is arranged at the output end of the servo motor 13, a first bevel gear 132 is fixedly connected to the side wall of the rotating column 131, the first bevel gear 132 is meshedly connected to the second bevel gear 133, one end of the second bevel gear 133 is fixedly connected to a bidirectional threaded rod 134, the side wall of the bidirectional threaded rod 134 is threadedly connected to two sliders 135, the upper ends of the sliders 135 are fixedly connected to two first rotating seats 136, the first rotating seats 136 are rotatably connected to connecting rods 137, the end of the connecting rod 137 away from the first rotating seat 136 is rotatably connected to the second rotating seat 138, and the end of the second rotating seat 138 away from the first rotating seat 136 is fixedly connected to the sofa frame 2.

[0025] The arrangement drives the servo motor 13 to drive the rotating column 131 to rotate, the rotating column 131 drives the first bevel gear 132 to rotate, the first bevel gear 132 drives the second bevel gear 133 to rotate, the second bevel gear 133 drives the bidirectional threaded rod 134 to rotate, the bidirectional threaded rod 134 drives the two sliders 135 to move horizontally and linearly, the sliders 135 respectively drive the first rotating seat 136 to move horizontally and linearly, the first rotating seat 136 drives the connecting rod 137 to rotate, the connecting rod 137 drives the second rotating seat 138 to rise and fall, and the second rotating seat 138 drives the sofa frame 2 to rise and fall.

[0026] A first mounting groove 101 is provided at the upper end of the sofa seat 1, a second mounting groove 102 is provided inside the sofa seat 1, the first mounting groove 101 is located at the inner bottom wall of the second mounting groove 102, a spring 11 is provided inside the sofa seat 1, the spring 11 is located in the second mounting groove 102, a baffle 12 is provided at one end of the spring 11, and the baffle 12 is used to utilize the elastic force of the spring 11 to push the baffle 12 to slide out of the first mounting groove 101, so as to prevent the internal structure of the sofa seat 1 from leaking out when the sofa frame 2 is raised, and the baffle 12 is used to block it, thereby increasing the aesthetics of the sofa.

[0027] A support ring 3 is fixedly connected to the lower end of the sofa seat 1 , and a support pillar 31 is threadedly connected to the support ring 3 for increasing the height of the support ring 3 and the support pillar 31 by rotating the support pillar 31 , thereby adjusting the height of the sofa seat 1 .

[0028] There are three first bevel gears 132 on the side wall of the rotating column 131, and each of the first bevel gears 132 is meshed with a second bevel gear 133, which is used to drive a servo motor 13 to simultaneously drive three bidirectional threaded rods 134 to rotate, and then simultaneously drive six connecting rods 137 to support the lifting of the sofa frame 2, thereby increasing the stability of the lifting of the sofa frame 2.

[0029] There are eight second mounting grooves 102 inside the sofa seat 1, and eight springs 11 inside the sofa seat 1 are respectively located in the second mounting grooves 102, which are used to increase the force of the baffle 12 moving upward, so that the upper surface of the baffle 12 and the sofa frame 2 are in closer contact.

[0030] The first installation slot 101 and the baffle plate 12 are both T-shaped, which are used to limit the baffle plate 12 and prevent the baffle plate 12 from directly sliding out of the first installation slot 101 due to the elastic force of the spring 11, thereby increasing structural stability.

[0031] A limiting column 14 is arranged inside the sofa seat 1 , and the slider 135 is slidably connected to the limiting column 14 , so as to limit the slider 135 and increase the stability of the movement of the slider 135 .

[0032] Working principle: first, the servo motor 13 is driven to drive the rotating column 131 to rotate, the rotating column 131 drives the first bevel gear 132 to rotate, the first bevel gear 132 drives the second bevel gear 133 to rotate, the second bevel gear 133 drives the bidirectional threaded rod 134 to rotate, the bidirectional threaded rod 134 drives the two sliders 135 to move horizontally and linearly, the sliders 135 respectively drive the first rotating seat 136 to move horizontally and linearly, the first rotating seat 136 drives the connecting rod 137 to rotate, the connecting rod 137 drives the second rotating seat 138 to rise and fall, the second rotating seat 138 drives the sofa frame 2 to rise and fall, the elastic force of the spring 11 is used to push the baffle 12 to slide out of the first mounting groove 101, and the baffle 12 is used to block it, so as to avoid the internal structure of the sofa seat 1 from leaking out, thereby increasing the aesthetics of the sofa, and when the height of the sofa seat 1 is adjusted, the height of the support ring 3 and the pillar 31 is increased by rotating the pillar 31, and then the height of the sofa seat 1 is adjusted.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sofa with a lifting and limiting frame, comprising a sofa seat (1), characterized in that: The sofa seat (1) is provided with a servo motor (13) inside, and a rotating column (131) is provided at the output end of the servo motor (13). A first bevel gear (132) is fixedly connected to the side wall of the rotating column (131), and the first bevel gear (132) is meshingly connected to a second bevel gear (133). One end of the second bevel gear (133) is fixedly connected to a bidirectional threaded rod (134), and two sliders (135) are threadedly connected to the side wall of the bidirectional threaded rod (134). The upper ends of the sliders (135) are fixedly connected to two first rotating seats (136), and the first rotating seats (136) are rotatably connected to connecting rods (137). One end of the connecting rod (137) away from the first rotating seat (136) is rotatably connected to a second rotating seat (138), and the second rotating seat (138) away from the first rotating seat One end of the movable seat (136) is fixedly connected to the sofa frame (2). The servo motor (13) is driven to drive the rotating column (131) to rotate, so that the rotating column (131) drives the first bevel gear (132) to rotate, so that the first bevel gear (132) drives the second bevel gear (133) to rotate, so that the second bevel gear (133) drives the bidirectional threaded rod (134) to rotate, so that the bidirectional threaded rod (134) drives two sliders (135) to move horizontally and linearly, so that the sliders (135) respectively drive the first rotating seat (136) to move horizontally and linearly, so that the first rotating seat (136) drives the connecting rod (137) to rotate, so that the connecting rod (137) drives the second rotating seat (138) to rise and fall, so that the second rotating seat (138) drives the sofa frame (2) to rise and fall.

2. A sofa with a frame lifting and limiting position according to claim 1, characterized in that: The upper end of the sofa seat (1) is provided with a first mounting groove (101), the interior of the sofa seat (1) is provided with a second mounting groove (102), the first mounting groove (101) is located on the inner bottom wall of the second mounting groove (102), a spring (11) is arranged inside the sofa seat (1), the spring (11) is located in the second mounting groove (102), and a baffle (12) is arranged at one end of the spring (11).

3. The sofa with frame lifting and limiting position according to claim 1, characterized in that: The lower end of the sofa seat (1) is fixedly connected to a support ring (3), and the support ring (3) is threadedly connected to a support column (31).

4. The sofa with frame lifting and limiting position according to claim 1, characterized in that: A total of three first bevel gears (132) are provided on the side wall of the rotating column (131), and each of the first bevel gears (132) is meshedly connected with a second bevel gear (133).

5. The sofa with frame lifting and limiting position according to claim 2, characterized in that: A total of eight second installation grooves (102) are provided inside the sofa seat (1), and a total of eight springs (11) are provided inside the sofa seat (1), and the springs (11) are respectively located in the second installation grooves (102).

6. The sofa with frame lifting and limiting position according to claim 2, characterized in that: The first mounting groove (101) and the baffle (12) are both T-shaped.

7. The sofa with frame lifting and limiting position according to claim 1, characterized in that: A limiting column (14) is arranged inside the sofa seat (1), and the sliding block (135) is slidably connected to the limiting column (14).

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