CN219479621U - Double dynamical helping hand chair mechanical frame - Google Patents

Abstract

The utility model relates to a double-power-assisted chair mechanical frame which is used for a leisure chair, and discloses a handrail frame which is arranged at two sides of a sitting frame through trapezoidal opening slots, wherein an anti-pulling clamping head is arranged on the inner side surface of the handrail frame, and a backrest frame is arranged at the rear end of the sitting frame through a rear swing joint; the foot lifting frame is hinged with the front end of the underframe; the foot bracket consists of a short bracket and a long bracket, and the long bracket and the short bracket are sequentially connected and installed at the front end of the seat frame; the seat frame is hinged with the underframe through the lifting frame, the stretching power device is composed of a seat frame electric push rod and a foot lifting electric push rod, one end of the backrest electric push rod is hinged with the seat frame, the other end of the backrest electric push rod is hinged with the rear swing joint, one end of the seat frame electric push rod is hinged with the underframe, the other end of the seat frame electric push rod is hinged with the seat frame second cross rod, one end of the foot lifting electric push rod is hinged with the underframe, and the other end of the foot lifting electric push rod is hinged with the foot lifting frame. The utility model has the advantages of compact, stable and safe structure, can adjust the standing-assisting posture of backward and forward inclination according to the requirement, and simultaneously, the two sections of foot brackets enable the foot support to be more comfortable.

Description

Double dynamical helping hand chair mechanical frame

Technical Field

The utility model relates to a double-power-assisted chair mechanical frame, in particular to an independent three-power-driven stretching leisure chair mechanical frame.

Background

Along with the requirement of social development, the functional requirement of the chair is increased, and the leisure chair with the foot brackets on the market has the defects of insufficient extension length or large occupied space after folding, and can not install thicker soft foot brackets, and the backrest frame only swings singly upwards and vertically, lacks the fine tuning function for the fitting degree of the waist and the head of a human body, and the sitting frame only lifts at a single height and does not have the tilting and standing assisting function.

Disclosure of Invention

The utility model aims to provide a double-power-assisted chair mechanical frame, which drives a sitting frame through three electric push rods and drives a back frame through two electric push rods, so that the leisure chair can realize the functions of lifting and tilting the sitting frame, assisting in standing, fine adjustment of the fitting degree of the waist part and the head part of the back frame and the like in a compact space.

The technical proposal of the utility model is based on a sitting frame, a underframe, an armrest frame, a backrest frame, an extension power device, a foot bracket and a foot lifting frame, and is characterized in that the armrest frame is arranged on two sides of the sitting frame through a trapezoidal opening slot, a V-shaped anti-pulling clamping head is arranged in the middle of the inner side surface of the armrest frame, the rear end of the sitting frame is hinged with a rear swing joint, and the backrest frame is arranged on the rear swing joint; the foot lifting frame is hinged with the front end of the underframe; the foot bracket consists of a short bracket and a long bracket, one end of the long bracket is hinged with the front end of the seat frame, and the other end of the long bracket is hinged with one end of the short bracket; the lower extreme of crane is articulated with the middle horizontal pole of chassis, and the crane upper end is articulated with the first horizontal pole of frame, stretch power device by sit the frame electric putter, lift foot electric putter and constitute, sit the stiff end of frame electric putter and the horizontal pole of chassis rear end are articulated, sit the flexible end of frame electric putter and sit the articulated with the second horizontal pole of frame, lift the flexible end of foot electric putter and the middle horizontal pole of chassis are articulated, lift the stiff end of foot electric putter and lift the foot rest and articulated.

The backrest frame comprises a main frame, a pillow frame electric push rod, a waist frame electric push rod, a first cross rod, a second cross rod, a waist support frame, a first connecting rod and a second connecting rod, wherein the two sides of the top end of the main frame are respectively provided with the pillow frame, the middle part of the pillow frame is hinged with the main frame, the middle parts of the two sides of the waist support frame are respectively hinged with the two sides of the bottom end of the main frame, the middle parts of the two sides of the first cross rod and the second cross rod are respectively hinged with the two sides of the main frame, the fixed ends of the pillow frame electric push rod are hinged with the cross rod of the waist support frame, the telescopic ends of the pillow frame electric push rod are hinged with the second cross rod, the fixed ends of the waist frame electric push rod are hinged with the cross rod of the waist support frame, and the telescopic ends of the waist frame electric push rod are hinged with the first cross rod; one end of the first connecting rod is hinged with one end of the side face of the waist support frame, the other end of the first connecting rod is hinged with one end of the side face of the first cross rod, one end of the second connecting rod is hinged with one end of the pillow frame, and the other end of the second connecting rod is hinged with one end of the side face of the second cross rod.

The utility model discloses a theory of operation is through crane and the one end of sitting frame electric putter backward articulated elevation structure in proper order in the front end of sitting frame respectively, make on the basis of sitting frame oscilaltion, because of sitting frame electric putter is longer than the crane, the leisure chaise longue is accomplished by the back forward inclined helps standing gesture when reaching the highest extension, lift the foot rest through the flexible drive of lifting foot electric putter simultaneously, make the front end of leisure chaise slightly lift, let the user adjust the inclined help standing gesture according to self demand the shank not do not extend the front end height of leisure chaise longue under the state, thereby reach the most comfortable half standing position state, assist the old man standing, drawing forward leaning gesture, change sitting position impetus when sitting for a long time, let shank blood circulation better. Under the leisure chaise longue state of lying on back, through the long, the short bracket structure of foot bracket, let the foot bracket extend the distance extension, the extension and the heel laminating of short bracket simultaneously let the bearing point of leg by heel and shank two-point support, make the shank more comfortable when the bearing. The pillow frame and the waist support are respectively arranged at the head and waist positions of the backrest frame support, and the pillow frame electric push rod and the waist support electric push rod are independently driven to stretch, so that a user can adjust the pillow frame to the most comfortable supporting state according to the requirements of the head and the waist of the user.

The utility model has the advantages of compact, stable and safe structure, can adjust the standing-assisting posture of backward and forward inclination according to the requirement of a user, and simultaneously, the two-section foot bracket ensures more comfortable foot support.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of the utility model in an extended state;

FIG. 3 is a perspective view of the utility model in a standing position;

FIG. 4 is a schematic view of the mounting structure of the armrest and the seat frame of the present utility model;

FIG. 5 is a schematic cross-sectional perspective view of the present utility model;

FIG. 6 is a schematic perspective view of the extension power unit of the present utility model mounted on a seat frame in cross-section;

FIG. 7 is a perspective view showing a raised state of the seat frame of the present utility model;

FIG. 8 is a perspective view showing a state in which a pillow frame of the back frame of the present utility model is extended;

FIG. 9 is a perspective view showing a state in which a lumbar support frame of the back frame of the present utility model is extended;

fig. 10 is a schematic cross-sectional perspective view of the back frame of the present utility model.

Detailed Description

According to the utility model, as shown in figures 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10, the chair comprises a sitting frame 1, a bottom frame, an armrest frame 3, a backrest frame 4, an extension power device 5, a foot bracket 6, a foot lifting frame 7 and a lifting frame 8, and is characterized in that the armrest frame 3 is arranged on two sides of the sitting frame 3 through a trapezoidal opening slot 3.2, a V-shaped anti-pulling clamp 3.1 is arranged in the middle of the inner side surface of the armrest frame, the V-shaped anti-pulling clamp 3.1 is formed by hinging one ends of two cards, a back swing joint 1.2 is hinged at the rear end of the sitting frame 1, and the backrest frame 4 is arranged on the back swing joint 1.2; the foot lifting frame 7 is hinged with the front end of the underframe 2; the foot bracket 6 consists of a short bracket 6.1 and a long bracket 6.2, wherein the rear end of the long bracket 6.2 is hinged with the front end of the seat frame 1, and the front end of the long bracket 6.2 is hinged with the rear end of the short bracket 6.1; the long bracket and the short bracket are composed of two or more hinged telescopic arms with middle parts capable of being turned, the lower end of the lifting frame 8 is hinged with a middle cross rod of the underframe 2, the upper end of the lifting frame 8 is hinged with a first cross rod 1.3 of the sitting frame 1, the stretching total length of the lifting frame 8 is shorter than the total stretching length of the sitting frame electric push rod 5.2, the lifting frame 8 is composed of two or more hinged telescopic arms with middle parts capable of being turned, the stretching power device 5 is composed of the sitting frame electric push rod 5.2 and the sitting frame electric push rod 5.1, the fixed end of the sitting frame electric push rod 5.2 is hinged with a cross rod at the rear end of the underframe 2, the telescopic end of the sitting frame electric push rod 5.2 is hinged with a second cross rod 1.1 of the sitting frame 1, the fixed end of the sitting frame electric push rod 5.1 is hinged with a middle cross rod of the telescopic end of the sitting frame 2, and the fixed end of the sitting frame electric push rod 5.1 is hinged with the lifting frame 7.

The backrest frame 4 consists of a main frame 4.1, a pillow frame 4.2, pillow frame electric push rods 4.3, waist frame electric push rods 4.4, a first cross rod 4.5, a second cross rod 4.6 and a waist support frame 4.7, wherein the two sides of the top end of the main frame 4.1 are respectively provided with the pillow frame 4.2, the middle part of the pillow frame 4.2 is hinged with the main frame 4.1, the middle parts of the two sides of the waist support frame 4.7 are respectively hinged with the two sides of the bottom end of the main frame 4.1, the middle parts of the two sides of the first cross rod 4.5 and the second cross rod 4.6 are respectively hinged with the two sides of the main frame 4.1, the fixed end of the pillow frame electric push rod 4.3 is hinged with the cross rod of the waist support frame 4.7, the telescopic end of the waist frame electric push rod 4.3 is hinged with the second cross rod 4.6, the fixed end of the waist support frame electric push rod 4.4 is hinged with the cross rod of the waist support frame 4.7, and the telescopic end of the waist frame electric push rod 4.4 is hinged with the first cross rod 4.5; the lower extreme of first connecting rod 4.8 articulates with the one end of support waist frame side, and the upper end of first connecting rod 4.8 articulates with first horizontal pole 4.5 side upper end, and the upper end of second connecting rod 4.9 articulates with the inner of pillow frame, and the lower extreme of second connecting rod 4.9 articulates with second horizontal pole side one end.

Claims (2)

1. The double-power assisting chair mechanical frame comprises a sitting frame, a bottom frame, an armrest frame, a backrest frame, an extension power device, a foot bracket and a foot lifting frame, and is characterized in that the armrest frame is arranged on two sides of the sitting frame through a trapezoidal opening slot, a V-shaped anti-pulling clamping head is arranged in the middle of the inner side surface of the armrest frame, a rear swing joint is hinged at the rear end of the sitting frame, and the backrest frame is arranged on the rear swing joint; the foot lifting frame is hinged with the front end of the underframe; the foot bracket consists of a short bracket and a long bracket, one end of the long bracket is hinged with the front end of the seat frame, and the other end of the long bracket is hinged with one end of the short bracket; the lower extreme of crane is articulated with the middle horizontal pole of chassis, and the crane upper end is articulated with the first horizontal pole of frame, stretch power device by sit the frame electric putter, lift foot electric putter and constitute, sit the stiff end of frame electric putter and the horizontal pole of chassis rear end are articulated, sit the flexible end of frame electric putter and sit the articulated with the second horizontal pole of frame, lift the flexible end of foot electric putter and the middle horizontal pole of chassis are articulated, lift the stiff end of foot electric putter and lift the foot rest and articulated.

2. The mechanical frame of the double-power-assisted chair according to claim 1, wherein the backrest frame is composed of a main frame, a pillow frame electric push rod, a waist frame electric push rod, a first cross rod, a second cross rod, a waist support frame, a first connecting rod and a second connecting rod, wherein the pillow frame is respectively arranged at two sides of the top end of the main frame, the middle part of the pillow frame is hinged with the main frame, the middle parts of the two sides of the waist support frame are respectively hinged with two sides of the bottom end of the main frame, the middle parts of the two sides of the first cross rod and the second cross rod are respectively hinged with two sides of the main frame, the fixed end of the pillow frame electric push rod is hinged with the cross rod of the waist support frame, the telescopic end of the pillow frame electric push rod is hinged with the cross rod of the waist support frame, and the telescopic end of the waist frame electric push rod is hinged with the first cross rod; one end of the first connecting rod is hinged with one end of the side face of the waist support frame, the other end of the first connecting rod is hinged with one end of the side face of the first cross rod, one end of the second connecting rod is hinged with one end of the pillow frame, and the other end of the second connecting rod is hinged with one end of the side face of the second cross rod.