Lifting chair frame of electric sofa

Abstract

The utility model relates to the technical field of chair frames, in particular to an electric sofa lifting chair frame which comprises two sets of underframes, a mounting plate is connected between the two sets of underframes, a threaded cylinder rotatably penetrates through the center of the mounting plate, a first threaded shaft is mounted in the threaded cylinder in a matched and threaded mode, and the top of the first threaded shaft is fixedly connected with a seat plate. A driving mechanism matched with the threaded cylinder to rotate is mounted on the mounting plate; and a shear type support frame is arranged between the bottom frame and the seat plate. Compared with the prior art, the electric sofa has the advantages that the threaded cylinder is driven by the driving mechanism to rotate, so that the threaded shaft I moves up and down, the seat plate is pushed by the threaded shaft I to move up and down, the height of the electric sofa bracket is adjusted, and the practicability of the electric sofa is improved; the electric sofa is prevented from moving downwards after a user sits on the electric sofa.

Description

Technical Field

[0001] The utility model relates to the technical field of chair frames, in particular to an electric sofa lifting chair frame. Background Art

[0002] As people's living standards improve, in order to improve the experience of watching TV or movies, most people choose to install more comfortable sofa seats.

[0003] The existing electric sofas are relatively comfortable, but the height of the electric sofa bracket cannot be adjusted, and only the sitting posture can be adjusted, which affects the practicality of the electric sofa.

[0004] Based on the above technical defects, we propose an electric sofa lifting chair frame. Utility Model Content

[0005] 1. Technical Problems Solved

[0006] The technical problem to be solved by the utility model is that the height of the electric sofa bracket cannot be adjusted and only the sitting position can be adjusted, which affects the practicality of the electric sofa.

[0007] 2. Technical Solution

[0008] In order to solve the above technical problems, the technical solution provided by the utility model is: an electric sofa lifting chair frame, comprising two groups of base frames, a mounting plate is connected between the two groups of base frames, a threaded barrel is rotated through the center of the mounting plate, a threaded shaft 1 is installed inside the threaded barrel through the matching thread, the top of the threaded shaft 1 is fixedly connected to the seat plate, and a driving mechanism that cooperates with the rotation of the threaded barrel is installed on the mounting plate; a scissor-type support frame is installed between the base frame and the seat plate.

[0009] As an improvement, the driving mechanism includes a gear 1 installed at the bottom of the threaded barrel, a motor is installed on the upper side of the mounting plate, and the motor shaft end passes through the mounting plate and is installed with a gear 2 that meshes with the gear 1.

[0010] As an improvement, a protective side plate is installed on the upper side of the seat plate, and a control switch connected to the motor is installed on the protective side plate.

[0011] As an improvement, the scissor-type support frame includes two groups of rotatably connected support rods, and the ends of the two groups of support rods that are away from each other are respectively rotatably connected to sliders, and the outer sliding sleeve of the slider is a limit frame, and a group of sliders close to the seat plate have a threaded shaft 2 passing through the inside of the slider, and slides are respectively provided on the opposite side walls of the limit frame, and the two ends of the threaded shaft 2 slide through the slides and are installed with clamps and handwheels.

[0012] As an improvement, the two groups of limit frames are respectively installed on the upper side of the base frame and the lower side of the seat plate, and the other ends of the support rods that are away from each other are rotatably connected to the base frame and the seat plate respectively.

[0013] As an improvement, grooves are respectively provided on one side of the middle of the two groups of support rods that are close to each other, and the bottoms of the two groups of grooves are in contact and rotatably connected.

[0014] As an improvement, a group of the sliding blocks close to the base frame are respectively installed with limiting sliding blocks on opposite sides, and the limiting sliding blocks slide inside the slideway.

[0015] 3. Beneficial Effects

[0016] Compared with the prior art, the advantages of the present invention are as follows: the threaded cylinder is driven to rotate by the driving mechanism to realize the up and down movement of the threaded shaft 1, and the threaded shaft 1 pushes the seat plate up and down to realize the height adjustment of the electric sofa bracket, thereby improving the practicality of the electric sofa; the electric sofa lifting chair frame is limited by the scissor-type support frame to prevent the electric sofa from moving down after the user sits on the electric sofa. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a front structural schematic diagram of an electric sofa lifting chair frame.

[0018] Figure 2 The utility model is a schematic diagram of the rear structure of an electric sofa lifting chair frame.

[0019] Figure 3 The utility model is a schematic diagram of the mounting plate structure of an electric sofa lifting chair frame.

[0020] Figure 4 The utility model is a schematic diagram of the structure of a scissor-type support frame of an electric sofa lifting chair frame.

[0021] As shown in the figure: 1. Seat; 2. Base frame; 3. Mounting plate; 4. Threaded cylinder; 5. Gear 1; 6. Motor; 7. Gear 2; 8. Threaded shaft 1; 9. Control switch; 10. Scissor-type support frame; 1001. Support rod; 1002. Groove; 1003. Limit frame; 1004. Slider; 1005. Limit slider; 1006. Slide; 1007. Threaded shaft 2; 1008. Clamp; 1009. Handwheel; 11. Protective side panel. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Example 1

[0024] As attached Figure 1 and attached Figure 2 As shown, an electric sofa lifting chair frame includes two groups of base frames 2, and a mounting plate 3 is connected between the two groups of base frames 2. A threaded cylinder 4 is rotated through the center of the mounting plate 3, and a threaded shaft 8 is installed inside the threaded cylinder 4 through a matching thread. The top of the threaded shaft 8 is fixedly connected to the seat plate 1, and a driving mechanism that cooperates with the rotation of the threaded cylinder 4 is installed on the mounting plate 3.

[0025] Through the above structure, the driving mechanism drives the threaded cylinder 4 to rotate inside the mounting plate 3. When the threaded cylinder 4 rotates, the threaded shaft 8 moves up and down in coordination with the thread inside the threaded cylinder 4, and the seat plate 1 moves up and down through the threaded shaft 8. The specific structure is as follows:

[0026] Combined with attachment Figure 1 and attached Figure 3 As shown, the driving mechanism includes a gear 1 5 installed at the bottom of the threaded cylinder 4, a motor 6 is installed on the upper side of the mounting plate 3, the shaft end of the motor 6 passes through the mounting plate 3 and is installed with a gear 2 7 that meshes with the gear 1 5, a protective side plate 11 is installed on the upper side of the seat plate 1, and a control switch 9 connected to the motor 6 is installed on the protective side plate 11.

[0027] Through the above structure, after the user sits on the electric sofa, the motor 6 is started by the control switch 9, and the motor 6 drives the gear 2 7 to rotate. The gear 2 7 engages with the gear 1 5, driving the threaded barrel 4 to rotate inside the mounting plate 3.

[0028] Example 2

[0029] Combined with attachment Figure 4 and attached Figure 4As shown, a scissor-type support frame 10 is installed between the base frame 2 and the seat plate 1, and the scissor-type support frame 10 includes two groups of rotatably connected support rods 1001, and the ends of the two groups of support rods 1001 that are away from each other are rotatably connected with sliders 1004 respectively. The outer sliding sleeve of the slider 1004 is a limit frame 1003, and the internal matching thread of the group of sliders 1004 close to the seat plate 1 is passed through by a threaded shaft 1007, and slideways 1006 are respectively provided on the opposite side walls of the limit frame 1003, and the two ends of the threaded shaft 1007 respectively slide through the slideways 1006 and are installed with clamps 1008 and handwheels 1009.

[0030] Through the above structure, when the seat 1 moves up and down, it drives the two groups of support rods 1001 to rotate, and the slider 1004 at one end of the support rod 1001 slides inside the limit frame 1003, and the threaded shaft 1007 slides inside the slide 1006. When the height of the seat 1 is fixed, turn the hand wheel 1009 to drive the threaded shaft 1007 to rotate through the hand wheel 1009, and the threaded shaft 1007 moves inside the slider 1004 to clamp the clamping block 1008 and the slider 1004 on both sides of the side wall of the limit frame 1003. The clamping block 1008 and the slider 1004 close to the limit frame 1003 are made of materials with a higher friction coefficient to prevent sliding.

[0031] Combined with attachment Figure 4 As shown, the two groups of limit frames 1003 are respectively installed on the upper side of the base frame 2 and the lower side of the seat plate 1, and the other ends of the support rods 1001 that are away from each other are rotatably connected to the base frame 2 and the seat plate 1 respectively. The two groups of support rods 1001 are respectively provided with grooves 1002 on the side close to each other in the middle, and the bottoms of the two groups of grooves 1002 are in contact and rotatably connected. A group of sliders 1004 close to the base frame 2 are respectively installed with limit sliders 1005 on the opposite sides, and the limit slider 1005 slides inside the slide 1006.

[0032] Through the above structure, the limit frame 1003 is fixedly connected to the base frame 2 and the seat plate 1, and the two ends of the support rod 1001 are rotatably connected to the limit slider 1005, the base frame 2 and the seat plate 1 respectively. The limit frame 1003 is fixedly connected to the base frame 2 and the seat plate 1, and the slider 1004 slides inside the limit frame 1003, so that the two groups of support rods 1001 can rotate between the base frame 2 and the seat plate 1, and the limit slider 1005 slides inside the slide 1006 to ensure that the slider 1004 slides stably inside the limit frame 1003.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0035] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without creatively designing a structure and embodiment similar to the technical solution, they shall fall within the scope of protection of the present invention.

Claims

1. An electric sofa lift chair frame, comprising two sets of base frames (2), wherein a mounting plate (3) is connected between the two sets of base frames (2), characterized in that: A threaded barrel (4) is rotated and passed through the center of the mounting plate (3), a threaded shaft (8) is installed through the inner part of the threaded barrel (4) through which a thread is matched, the top of the threaded shaft (8) is fixedly connected to the seat plate (1), a driving mechanism that matches the rotation of the threaded barrel (4) is installed on the mounting plate (3), and a scissor-type support frame (10) is installed between the base frame (2) and the seat plate (1).

2. The electric sofa lift frame according to claim 1, characterized in that: The driving mechanism comprises a gear 1 (5) mounted at the bottom of the threaded barrel (4), a motor (6) mounted on the upper side of the mounting plate (3), and a shaft end of the motor (6) passing through the mounting plate (3) and mounted with a gear 2 (7) engaged with the gear 1 (5).

3. The electric sofa lift frame according to claim 2, characterized in that: A protective side plate (11) is installed on the upper side of the seat plate (1), and a control switch (9) connected to the motor (6) is installed on the protective side plate (11).

4. The electric sofa lift frame according to claim 1, characterized in that: The scissor-type support frame (10) comprises two groups of rotatably connected support rods (1001), and the ends of the two groups of support rods (1001) that are separated from each other are rotatably connected to sliders (1004), and the outer sides of the sliders (1004) are slidably sleeved with a limit frame (1003). The inner part of the group of sliders (1004) close to the seat plate (1) is provided with a second threaded shaft (1007) that is threadedly passed through, and slideways (1006) are respectively provided on the opposite side walls of the limit frame (1003), and the two ends of the second threaded shaft (1007) respectively slide through the slideways (1006) and are installed with a clamping block (1008) and a hand wheel (1009).

5. The electric sofa lift frame according to claim 4, characterized in that: The two groups of limit frames (1003) are respectively installed on the upper side of the base frame (2) and the lower side of the seat plate (1), and the other ends of the support rods (1001) are respectively connected to the base frame (2) and the seat plate (1) in a rotational manner.

6. The electric sofa lift frame according to claim 4, characterized in that: Grooves (1002) are respectively provided on one side of the middle of the two groups of support rods (1001) that are close to each other, and the bottoms of the two groups of grooves (1002) are in contact with each other and are rotatably connected.

7. The electric sofa lift frame according to claim 4, characterized in that: A group of the sliders (1004) close to the base frame (2) are respectively provided with limiting sliders (1005) on opposite sides, and the limiting sliders (1005) slide inside the slideway (1006).

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