Single sofa seat

Abstract

The utility model belongs to the technical field of seats, and particularly relates to an armchair seat, aiming at solving the technical problem that users with different heights cannot lie on the armchair seat. Comprising a five-claw movable base, a seat cushion assembly, a seat backrest assembly, a lifting hydraulic supporting rod, a leg support panel, a leg support lifting connecting rod mechanism, a lead screw motor, a rotating motor, a disc, a backrest driving connecting rod and a fixing support, the lifting hydraulic supporting rod is rotationally installed on the five-claw movable base, and the fixing support is installed on the lifting hydraulic supporting rod; a seat cushion assembly is installed on the fixing support, in order to facilitate lying and leaning of users of different heights, a driving screw rod is manually rotated, through threaded connection between the driving screw rod and a threaded matching sleeve, an expansion pillow plate relatively slides along a pillow plate sliding cavity, and then the use length of a seat backrest assembly is expanded through the expansion pillow plate; and therefore, users with different heights can conveniently lie.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of seat, especially single sofa seat. BACKGROUND

[0002] Patent application number CN202422037496.1 discloses a kind of seat, including chair leg, seat surface, force sensor, first drive unit and control unit, seat surface is set in the upper of chair leg, seat surface has to be measured area, force sensor is used to detect the stress state of to be measured area, first drive unit is connected with seat surface, control unit is connected with force sensor and first drive unit respectively, control unit is suitable according to the data of force sensor detection, but the defect of this technical scheme is that there is no way to realize the reclining of different height users. UTILITY MODEL CONTENT

[0003] The utility model is to provide a kind of single sofa seat, to solve the technical problem that there is no way to realize the reclining of different height users.

[0004] To achieve the above-mentioned purpose, the specific technical scheme of a single sofa seat of the utility model is as follows:

[0005] A single sofa seat, comprising a five-claw movable base, a seat cushion assembly, a seat backrest assembly, a lifting hydraulic support rod, a leg support panel, a leg support lifting linkage mechanism, a lead screw motor, a rotary motor, a disc, a backrest drive connecting rod, and a fixed support, the five-claw movable base is rotatably mounted with the lifting hydraulic support rod, the lifting hydraulic support rod is mounted with the fixed support, the fixed support is mounted with the seat cushion assembly, the seat cushion assembly is mounted with the rotary motor, the output shaft of the rotary motor is mounted with the disc, the disc is fixedly installed with the backrest drive connecting rod, the backrest drive connecting rod is mounted with the seat backrest assembly, the fixed support is mounted with the lead screw motor, the output shaft of the lead screw motor is hingedly installed on the leg support panel through a connecting sleeve, the leg support panel is hingedly installed at one end of the leg support lifting linkage mechanism, the other end of the leg support lifting linkage mechanism is hingedly installed on the fixed support.

[0006] Further, the five-claw movable base is a five-claw structure, and a universal roller is mounted on each claw.

[0007] Further, it further comprises a drive screw, a threaded fitting sleeve, an expansion pillow plate, and a pillow plate sliding cavity, the seat backrest assembly is provided with a pillow plate sliding cavity, the expansion pillow plate is slidingly installed in the pillow plate sliding cavity, the drive screw is rotatably and limitingly installed on the expansion pillow plate, the drive screw is threadedly connected with the threaded fitting sleeve, and the threaded fitting sleeve is installed in the inner end of the pillow plate sliding cavity.

[0008] Further, the leg rest lifting linkage mechanism comprises articulated link one, articulated link two, articulated link three and articulated link four, one end of the articulated link one is hingedly connected on the leg rest panel, the other end of the articulated link one is hingedly connected on the articulated link two, the articulated link two is hingedly installed on the fixed support, one end of the articulated link three is hingedly installed on the leg rest panel, the other end of the articulated link three is hingedly installed on the articulated link four, the articulated link four is hingedly installed on the fixed support, and the articulated link two and the articulated link three are hingedly connected.

[0009] The utility model has the advantages of:

[0010] 1. when the user needs to rest, the rotary motor is started, and then the rotary motor drives the disc to drive the backrest driving connecting rod to rotate, and then the backrest driving connecting rod drives the seat backrest assembly to rotate, so that the backrest driving connecting rod drives the seat backrest assembly to expand from 90 degrees to 175 degrees, facilitating the user to lie down, and the lifting hydraulic support rod can adjust the use height of the fixed support, which is 450 mm at the lowest and 510 mm at the highest.

[0011] 2. to facilitate the user of different heights to lie down, the drive screw is manually rotated, the threaded connection between the drive screw and the threaded sleeve is used to make the expansion pillow plate slide relative to the pillow plate sliding cavity, so that the expansion pillow plate expands the use length of the seat backrest assembly, thereby facilitating the user of different heights to lie down.

[0012] 3. when the leg rest panel needs to be expanded, the lead screw motor is started, the lead screw motor drives the leg rest panel to move through the connecting sleeve, and simultaneously makes the articulated link one, the articulated link two, the articulated link three and the articulated link four extend, thereby completing the expansion of the leg rest panel. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall structure schematic view of the utility model;

[0014] Figure 2 It is Figure 1 the enlarged view A of the partial view;

[0015] Figure 3 It is the leg rest lifting linkage mechanism structure schematic view of the utility model;

[0016] Figure 4 It is the overall complete opening state structure schematic view of the utility model;

[0017] Marked description in the figure: five claw movable base 1; seat cushion assembly 2; seat backrest assembly 3; lifting hydraulic support rod 4; leg support panel 5; leg support lifting connecting rod mechanism 6; articulated connecting rod one 6-1; articulated connecting rod two 6-2; articulated connecting rod three 6-3 and articulated connecting rod four 6-4; screw rod motor 7; rotary motor 8; disc 9; backrest drive connecting rod 10; drive screw 11; screw fitting sleeve 12; expansion pillow plate 13; pillow plate sliding cavity 14; fixed support 15. DETAILED DESCRIPTION

[0018] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0020] Example 1

[0021] As Figures 1-4As shown, a single sofa chair includes a five-claw movable base 1, a seat cushion assembly 2, a seat back assembly 3, a lifting hydraulic support rod 4, a leg rest panel 5, a leg rest lifting linkage mechanism 6, a lead screw motor 7, a rotary motor 8, a disc 9, a backrest drive connecting rod 10, and a fixed bracket 15. The lifting hydraulic support rod 4 is rotatably mounted on the five-claw movable base 1. The fixed bracket 15 is mounted on the lifting hydraulic support rod 4. The seat cushion assembly 2 is mounted on the fixed bracket 15. The rotary motor 8 is mounted on the seat cushion assembly 2. The disc 9 is mounted on the output shaft of the rotary motor 8. The backrest drive connecting rod 10 is fixedly mounted on the disc 9. The seat back assembly 3 is mounted on the backrest drive connecting rod 10. The lead screw is mounted on the fixed bracket 15. The output shaft of the motor 7 and the lead screw motor 7 are hinged to the leg rest panel 5 via a connecting sleeve. The leg rest panel 5 is hinged to one end of the leg rest lifting linkage mechanism 6, and the other end of the leg rest lifting linkage mechanism 6 is hinged to the fixed bracket 15. With this configuration, when the user needs to rest, the rotary motor 8 is started, which in turn drives the disc 9 to rotate the backrest drive connecting rod 10. In turn, the backrest drive connecting rod 10 drives the seat backrest assembly 3 to rotate, allowing the backrest drive connecting rod 10 to extend the seat backrest assembly 3 from 90 degrees to 175 degrees, making it convenient for the user to lie down. The lifting hydraulic support rod 4 can adjust the height of the fixed bracket 15, from a minimum of 450mm to a maximum of 510mm.

[0022] The five-claw movable base 1 has a five-claw structure, with omnidirectional rollers installed on each claw.

[0023] Example 2

[0024] like Figures 1-4 As shown, the assembly also includes a drive screw 11, a threaded sleeve 12, an extended headrest 13, and a headrest sliding cavity 14. The seat back assembly 3 has a headrest sliding cavity 14, and an extended headrest 13 is slidably installed inside the headrest sliding cavity 14. The drive screw 11 is rotatably limited on the extended headrest 13. The drive screw 11 is threadedly connected to the threaded sleeve 12, which is installed at the inner end of the headrest sliding cavity 14. This arrangement allows users of different heights to lie down comfortably. By manually rotating the drive screw 11, the extended headrest 13 slides relative to the headrest sliding cavity 14 through the threaded connection between the drive screw 11 and the threaded sleeve 12, thereby extending the usable length of the seat back assembly 3 and making it easier for users of different heights to lie down comfortably.

[0025] Example 3

[0026] like Figures 1-4As shown, the leg support lifting linkage 6 comprises articulated link one 6-1, articulated link two 6-2, articulated link three 6-3 and articulated link four 6-4, one end of the articulated link one 6-1 is hingedly connected to the leg support panel 5, the other end of the articulated link one 6-1 is hingedly connected to the articulated link two 6-2, the articulated link two 6-2 is hingedly mounted on the fixed bracket 15, one end of the articulated link three 6-3 is hingedly mounted on the leg support panel 5, the other end of the articulated link three 6-3 is hingedly mounted on the articulated link four 6-4, the articulated link four 6-4 is hingedly mounted on the fixed bracket 15, the articulated link two 6-2 is hingedly connected to the articulated link three 6-3, thus arranged, when it is needed to extend the leg support panel 5, the lead screw motor 7 is started, the lead screw motor 7 drives the leg support panel 5 to move through the connecting sleeve, at the same time, the articulated link one 6-1, the articulated link two 6-2, the articulated link three 6-3 and the articulated link four 6-4 are extended, thereby completing the extension of the leg support panel 5.

[0027] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A single sofa chair, characterized in that, The utility model provides a kind of five-claw movable base (1), seat cushion assembly (2), seat backrest assembly (3), lifting hydraulic support rod (4), leg support panel (5), leg support lifting linkage (6), screw rod motor (7), rotary motor (8), disc (9), backrest drive connecting rod (10) and fixed support (15) are included, the lifting hydraulic support rod (4) is rotatably installed on the five-claw movable base (1), the fixed support (15) is installed on lifting hydraulic support rod (4), the seat cushion assembly (2) is installed on fixed support (15), the rotary motor (8) is installed on seat cushion assembly (2), the disc (9) is installed on the output shaft of rotary motor (8), the backrest drive connecting rod (10) is fixedly installed on disc (9), the seat backrest assembly (3) is installed on backrest drive connecting rod (10), the screw rod motor (7) is installed on fixed support (15), the output shaft of screw rod motor (7) is hingedly installed on leg support panel (5) by connecting sleeve, the leg support panel (5) is hingedly installed on one end of leg support lifting linkage (6), the other end of leg support lifting linkage (6) is hingedly installed on fixed support (15), so set, when the user needs to rest, start rotary motor (8), in turn drive seat backrest assembly (3) by rotary motor (8) drive disc (9) drive backrest drive connecting rod (10) rotation, in turn drive seat backrest assembly (3) by backrest drive connecting rod (10) rotation, can make backrest drive connecting rod (10) drive seat backrest assembly (3) from 90 degrees unfolding to 175 degrees, the lying of convenient user, lifting hydraulic support rod (4) can adjust the use height of fixed support (15), the lowest is 450mm, the highest is 510mm.

2. A single person sofa chair according to claim 1, characterized in that The five-claw movable base (1) is a five-claw structure, and a universal roller is installed on each claw.

3. A single person sofa chair according to claim 1, wherein, Further including drive screw (11), threaded fitting sleeve (12), expansion pillow plate (13), pillow plate sliding cavity (14), the seat backrest assembly (3) is opened in pillow plate sliding cavity (14), the expansion pillow plate (13) is slidably installed in pillow plate sliding cavity (14), the drive screw (11) is rotatably and limitingly installed on expansion pillow plate (13), the drive screw (11) is threadedly connected with threaded fitting sleeve (12), and the threaded fitting sleeve (12) is installed in the inner end of pillow plate sliding cavity (14).

4. The single-person sofa chair according to claim 1, wherein The leg rest lifting linkage (6) comprises articulated link one (6-1), articulated link two (6-2), articulated link three (6-3) and articulated link four (6-4), one end of the articulated link one (6-1) is hingedly connected to the leg rest panel (5), the other end of the articulated link one (6-1) is hingedly connected to the articulated link two (6-2), the articulated link two (6-2) is hingedly mounted on the fixed support (15), one end of the articulated link three (6-3) is hingedly mounted on the leg rest panel (5), the other end of the articulated link three (6-3) is hingedly mounted on the articulated link four (6-4), the articulated link four (6-4) is hingedly mounted on the fixed support (15), and the articulated link two (6-2) and the articulated link three (6-3) are hingedly connected.

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