CN221750025U - Sand-lifting assisting hair frame - Google Patents

Abstract

The utility model relates to the technical field of furniture, in particular to a sand-lifting assisting machine frame which comprises a bottom frame, a lifting forward-leaning mechanism arranged on the bottom frame, a main body frame arranged at an output end of the lifting forward-leaning mechanism, a posture adjusting mechanism arranged on the main body frame, a leg support bracket arranged at one end of the posture adjusting mechanism close to the front of the main body frame and a backrest bracket arranged at one end of the posture adjusting mechanism close to the rear of the main body frame, wherein the posture adjusting mechanism can adjust the lifting or retracting of the leg support bracket and can adjust the angle between the backrest bracket and the main body frame. The posture adjusting mechanism for adjusting the posture of the user and the lifting and leaning forward mechanism for assisting the user to stand up are mutually independent structures, the electric sofa main body composed of the main body frame, the posture adjusting mechanism, the leg support bracket and the backrest bracket is independent relative to the bottom frame and the lifting and leaning forward mechanism, the functions for assisting the user to stand up and the posture adjusting and the corresponding structures are mutually independent, the overall structure is simpler, and the assembly and the disassembly are simpler and more convenient.

Description

Sand-lifting assisting hair frame

Technical Field

The utility model relates to the technical field of furniture, in particular to a sand-lifting assisting frame.

Background

In daily life of people, the sofa has become very common furniture, and compared with a wooden seat, the sofa can provide more comfort for people. Along with the continuous improvement of the living standard of people, the requirements of people on furniture are also higher and higher, and common sofa with single function is gradually abandoned by people.

The functional sofa generally has the function of adjusting the postures of the back and the feet so as to adapt to different sitting postures, and is very comfortable to use. However, for some old people or people with inconvenient actions, the most used is the sofa at home, while the existing sofa can meet various sitting requirements of common people, but when the old people or people get up, most of the sofa lacks corresponding auxiliary mechanism assistance, so that the common sofa is obviously not friendly to the users. In order to solve the problem, sofas capable of assisting in rising are also available on the market, but the mechanism of the assisting function of the sofas and the mechanism of posture adjustment are mixed together, so that the whole transmission mechanism is very complex, and the assembly and disassembly are very inconvenient.

Disclosure of utility model

The utility model aims to provide a sand-lifting assisting machine frame, which aims to solve the technical problems that in the prior art, a mechanism with auxiliary functions and a mechanism with posture adjustment are mixed together, so that a transmission mechanism is very complex, and assembly and disassembly are very inconvenient.

In order to achieve the above object, the present utility model provides a sand-lifting assisting frame, comprising:

A bottom frame;

A lifting forward tilting mechanism mounted on the bottom frame;

A main body frame which is arranged at the output end of the lifting and leaning mechanism and can ascend and lean relative to the bottom frame under the action of the lifting and leaning mechanism;

a posture adjustment mechanism mounted on the main body frame;

a leg rest bracket mounted at one end of the posture adjustment mechanism near the front of the main body frame, the posture adjustment mechanism being capable of adjusting the lifting or retraction of the leg rest bracket;

And the backrest bracket is arranged at one end of the gesture adjusting mechanism, which is close to the rear part of the main body frame, and the gesture adjusting mechanism can adjust the angle between the backrest bracket and the main body frame.

Preferably, the lifting forward-tilting mechanism comprises a lifting forward-tilting driving device, a first connecting rod, a left lifting hinge group and a right lifting hinge group, the lifting forward-tilting driving device is installed on the bottom frame, the first connecting rod is installed at the output end of the lifting forward-tilting driving device, the left lifting hinge group and the right lifting hinge group are movably installed on the bottom frame and are respectively connected with two ends of the first connecting rod, two sides of the main body frame are respectively installed on the left lifting hinge group and the right lifting hinge group, and the left lifting hinge group and the right lifting hinge group are identical in structure.

Preferably, the lifting forward-tilting driving device comprises a first driving motor, a first screw rod and a first movable casing, wherein the first driving motor is connected with one end of the first screw rod and used for driving the first screw rod to rotate, the first movable casing is sleeved on the first screw rod and is in threaded connection with the first screw rod, the first driving motor is installed on the bottom frame, and one end, far away from the first driving motor, of the first movable casing is connected with the first connecting rod.

Preferably, the left lifting hinge group comprises a fixed plate, a first connecting plate, a second connecting plate and a mounting plate; the fixed plate is arranged on the bottom frame, one end of the first connecting plate and one end of the second connecting plate are rotatably connected with the fixed plate, and the other end of the first connecting plate and the other end of the second connecting plate are rotatably connected with the mounting plate; one end of the first connecting rod is connected with the mounting plate, and the main body frame is mounted on the mounting plate.

Preferably, the lifting forward tilting mechanism further comprises a second connecting rod, and two ends of the second connecting rod are respectively connected with the first connecting plate in the left lifting hinge group and the first connecting plate in the right lifting hinge group.

Preferably, the posture adjusting mechanism comprises a leg support driving mechanism, a leg support telescopic mechanism, a backrest driving mechanism and a backrest adjusting mechanism; the leg support driving mechanism is arranged on the main body frame, the leg support telescopic mechanism is movably arranged on the main body frame and is connected with the output end of the leg support driving mechanism, and the leg support bracket is arranged on the leg support driving mechanism; the backrest driving mechanism is arranged on the main body frame, the backrest adjusting mechanism is movably arranged on the main body frame and is connected with the output end of the backrest driving mechanism, and the backrest bracket is arranged on the backrest driving mechanism.

Preferably, the main body frame comprises a left side frame, a right side frame opposite to the left side frame and arranged at intervals, and a cross bar group connected with the left side frame and the right side frame, a left vertical bar is arranged on the left side frame, a right vertical bar is arranged on the right side frame, the cross bar group comprises a first cross bar, two ends of the first cross bar are respectively connected with the left vertical bar and the right vertical bar, and the leg rest driving mechanism and the backrest driving mechanism are all installed on the first cross bar.

Preferably, the leg rest telescopic mechanism comprises a first connecting cross rod, a left hinge assembly and a right hinge assembly, wherein the left hinge assembly is movably arranged on the left side frame, the right hinge assembly is movably arranged on the right side frame, the first connecting cross rod is connected with the output end of the leg rest driving mechanism, the two ends of the first connecting cross rod are respectively connected with the left hinge assembly and the right hinge assembly, and the left hinge assembly and the right hinge assembly have the same structure;

The backrest adjusting mechanism comprises a second connecting cross rod, a left adjusting piece and a right adjusting piece, wherein the left adjusting piece is rotatably installed on the left side frame, the right adjusting piece is rotatably installed on the right side frame, the second connecting cross rod is connected with the output end of the backrest driving mechanism, the two ends of the second connecting cross rod are respectively connected with the left adjusting piece and the right adjusting piece, and the left adjusting piece and the right adjusting piece are identical in structure and are connected with the backrest bracket.

Preferably, the armrest frame is detachably mounted on both sides of the main body frame.

Preferably, the main body frame is provided with a sleeve rod with a hollow interior and an open upper end, the armrest frame is provided with a downward extending inserted rod, and the inserted rod is inserted into the sleeve rod.

The utility model relates to a hair-lifting assisting machine frame, which has at least the following beneficial effects: the posture adjusting mechanism for adjusting the posture of the user and the lifting and leaning forward mechanism for assisting the user to stand up are mutually independent structures, the electric sofa main body composed of the main body frame, the posture adjusting mechanism, the leg support bracket and the backrest bracket is independent relative to the bottom frame and the lifting and leaning forward mechanism, the functions for assisting the user to stand up and the posture adjusting and the corresponding structures are mutually independent, the overall structure is simpler, and the assembly and the disassembly are simpler and more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a structure of a first state of a stand for assisting in lifting hair according to the present utility model;

FIG. 2 is a schematic view of a structure of a second state of the auxiliary hair-lifting frame of the present utility model;

FIG. 3 is a schematic view of a third embodiment of a stand for assisting in lifting hair according to the present utility model;

FIG. 4 is a schematic view of a fourth embodiment of a stand for assisting in lifting hair according to the present utility model;

FIG. 5 is a schematic view of the structure of the bottom frame and the lifting/lowering mechanism of the present utility model;

FIG. 6 is a schematic view of the structure of the base frame and the lifting/lowering mechanism in another state of the utility model;

FIG. 7 is a schematic view of the structure of the main body frame, the posture adjustment mechanism, the leg rest bracket, and the backrest bracket of the present utility model;

FIG. 8 is a schematic view of the structure of the main frame of the present utility model;

FIG. 9 is a schematic diagram of the assembled structure of the leg rest drive mechanism, leg rest telescoping mechanism, backrest drive mechanism, backrest adjustment mechanism of the present utility model;

FIG. 10 is a schematic view of the left hinge assembly of the present utility model;

FIG. 11 is a schematic view of the structure of the back rest bracket of the present utility model;

FIG. 12 is a schematic view of another angle of the back bracket of the present utility model;

fig. 13 is a schematic structural view of the armrest frame of the present utility model.

In the accompanying drawings: 1-bottom frame, 2-lifting forward tilting mechanism, 21-lifting forward tilting driving device, 211-first driving motor, 212-first screw, 213-first movable housing, 22-first connecting rod, 23-left lifting hinge group, 231-fixed plate, 232-first connecting plate, 233-second connecting plate, 234-mounting plate, 24-right lifting hinge group, 25-second connecting rod, 3-main body frame, 31-left side frame, 311-left vertical rod, 32-right side frame, 321-right vertical rod, 33-horizontal rod group, 331-first horizontal rod, 332-second horizontal rod, 333-third horizontal rod, 334-fourth horizontal rod, 34-loop bar, 4-leg rest driving mechanism, 41-second driving motor, 42-second screw a second movable housing, a 5-leg rest telescoping mechanism, a first 51-connecting rail, a left 52-hinge assembly, a first 521-connecting rod, a second 522-connecting rod, a third 523-connecting rod, a fourth 524-connecting rod, a fixed 525-member, a right 53-hinge assembly, a leg rest bracket 6-leg rest bracket, a back 7-driving mechanism, a third 71-driving motor, a third 72-screw, a third 73-movable housing, a back 8-adjusting mechanism, a second 81-connecting rail, a left 82-adjusting member, a left 821-connecting portion, a right 83-adjusting member, a right 831-connecting portion, a back 9-bracket, a left 91-mounting plate, a left 911-slot, a right 92-mounting plate, a right 921-slot, a right 10-armrest frame, 101-insert rod.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1 to4, a sand lifting assisting frame comprises a bottom frame 1, a lifting and leaning forward mechanism 2, a main body frame 3, a posture adjusting mechanism, a leg support bracket 6 and a backrest bracket 9.

The bottom frame 1 is a rectangular frame structure and is used as a base of a sofa to be placed on the ground so as to support other structures. The lifting forward tilting mechanism 2 is arranged on the bottom frame 1, the main body frame 3 is arranged at the output end of the lifting forward tilting mechanism 2, the lifting forward tilting mechanism 2 can lift the bottom frame 1 to a certain height, and the bottom frame 1 can tilt forward in the lifting process. The main body frame 3 is a main body part of the sofa frame, the shape of the main body frame is a frame type structure, and in the finished sofa, the main body frame 3 also serves as a seat frame for a user to sit. The main body frame 3 is made of metal materials so as to ensure the stability of the sofa frame structure. The posture adjusting mechanism is mounted on the main body frame 3, the leg rest bracket 6 is mounted at one end of the posture adjusting mechanism near the front of the main body frame 3, and the backrest bracket 9 is mounted at one end of the posture adjusting mechanism near the rear of the main body frame 3. The posture adjusting mechanism can adjust the stretching, lifting and retracting of the leg rest bracket 6 relative to the main body frame 3, and can also adjust the angle between the backrest bracket 9 and the main body frame 3. The leg rest support 6 serves as a main body support for the leg rest in the finished sofa, and supports the legs of the user in use. The backrest bracket 9 is used as a main body bracket of the backrest in the finished sofa, and the backrest bracket is used for supporting the upper half body of a user by the back of the user during use. When the posture is required to be adjusted, the leg rest bracket 6 and the backrest bracket 9 can be adjusted by controlling the posture adjusting mechanism so as to switch between sitting postures and lying postures. When the user needs to stand up, the main body frame 3 is lifted and tilted forward by controlling the lifting and lowering tilting mechanism 2.

FIG. 1 is a view showing a structure of a sand-lifting assisting frame in a normal sitting posture state, in which a handle frame is detached from a main body frame; FIG. 2 is a view of the sand-lifting assisting frame after the user lifts his body, with the armrest frame omitted; FIG. 3 is a view showing the structure of the auxiliary hair-lifting frame in a raised state of the leg rest support, in which the armrest frame is detached from the main body frame; fig. 4 is a view showing a structure of the sand-lifting assisting frame in a state that the leg support bracket is lifted up and the backrest bracket is reversed backward, wherein the armrest frame is detached from the main body frame.

In an embodiment of the utility model, the posture adjusting mechanism for adjusting the posture of the user and the lifting and leaning mechanism 2 for assisting the user to stand up are mutually independent structures, the electric sofa main body composed of the main body frame 3, the posture adjusting mechanism, the leg support bracket 6 and the backrest bracket 9 is independent relative to the bottom frame 1 and the lifting and leaning mechanism 2, the functions for assisting the user to stand up and the posture adjusting and the corresponding structures are mutually independent, the whole structure is simpler, and the assembly and the disassembly are simpler.

Referring to fig. 5 and 6, in an embodiment of the present utility model, the lifting/tilting mechanism 2 includes a lifting/tilting driving device 21, a first connecting rod 22, a left lifting hinge set 23 and a right lifting hinge set 24. The elevation and forward tilting driving means 21 is installed on the base frame 1 for driving the main body frame 3 to rise and tilt forward and driving the main body frame 3 to be reset by output power. The left lifting hinge set 23 and the right lifting hinge set 24 are identical in structure and symmetrically arranged, wherein the left lifting hinge set 23 is movably arranged on the left side of the bottom frame 1, and the right lifting hinge set 24 is movably arranged on the right side of the bottom frame 1. The first connecting rod 22 is connected to the output end of the lifting forward-tilting driving device 21, and both ends are respectively connected to the left lifting hinge group 23 and the right lifting hinge group 24. The main body frame 3 is mounted on both sides thereof on the left and right lifting hinge groups 23 and 24, respectively. The lifting/lowering forward-tilting driving device 21 can push the first connecting rod 22 forward and upward, or pull the first connecting rod backward and downward. When the lifting/lowering forward-tilting driving device 21 pushes the first connecting rod 22 forward and upward, the left lifting/lowering hinge set 23 and the right lifting/lowering hinge set 24 synchronously rotate upward relative to the bottom frame 1, thereby lifting the main body frame 3 by a certain height and tilting the main body frame 3 forward. Conversely, when the lifting/lowering forward-tilting driving device 21 pulls the first connecting rod 22 backward and downward, the left lifting hinge set 23 and the right lifting hinge set 24 synchronously rotate downward, thereby resetting the main body frame 3. The first connecting rod 22 can realize synchronous adjustment of the left lifting hinge group 23 and the right lifting hinge group 24, and only one lifting forward-tilting driving device 21 is needed, so that the cost is reduced, and the synchronism is improved. The first connecting rod 22 may also improve structural stability of the left and right lifting hinge sets 23 and 24.

Referring to fig. 6, specifically, the elevation and forward tilting driving apparatus 21 includes a first driving motor 211, a first screw 212, and a first moving housing 213. The output end of the first driving motor 211 is connected to one end of the first screw 212, and is used for driving the first screw 212 to rotate. The first movable housing 213 is sleeved on the first screw 212 and is screwed with the first screw 212. The first driving motor 211 is installed on the base frame 1, and one end of the first moving housing 213, which is far from the first driving motor 211, is connected to the middle position of the first connecting rod 22. The first driving motor 211 rotates to drive the first screw 212 to rotate around the central axis thereof, and the first screw 212 rotates to drive the first movable housing 213 to move along the vertical direction of the first screw 212 relative to the first screw 212. The first driving motor 211 can be controlled to perform forward rotation and reverse rotation, so that the first screw 212 can also be rotated forward or reverse rotation, and the first moving housing 213 can be moved in two directions by the first screw 212, thereby achieving synchronous upward or downward rotation of the left and right elevating hinge assemblies 23 and 24.

As before, the left lifting hinge set 23 and the right lifting hinge set 24 are identical in structure; therefore, only the specific structure of the left lifting hinge group 23 will be described in detail in this embodiment, and the repetitive description will be avoided.

Referring to fig. 6, the left elevating hinge set 23 includes a fixing plate 231, a first link plate 232, a second link plate 233, and a mounting plate 234. The fixing plate 231 is mounted on the bottom frame 1, and the fixing plate 231 is positioned at the left rear of the bottom frame 1 for mounting the first and second link plates 232 and 233. One end of the first link plate 232 and one end of the second link plate 233 are rotatably connected to the fixing plate 231. Specifically, two vacancies are formed on the fixed plate 231, vacancies are formed on the end of the first connecting plate 232 and the end of the second connecting plate 233, hole positions on the first connecting plate 232 and the second connecting plate 233 correspond to hole positions on the fixed plate 231 respectively, and then locking pieces such as bolts are used for locking the first connecting plate 232, the second connecting plate 233 and the fixed plate 231. It will be readily appreciated that the mounting plate 234, the other end of the first link plate 232 and the other end of the second link plate 233 are also provided with holes, and that the other end of the first link plate 232 and the other end of the second link plate 233 are connected to the mounting plate 234 in the same manner. The two ends of the first connecting rod 22 are respectively connected with the mounting plate 234 in the left lifting hinge group 23 and the mounting plate 234 in the right lifting hinge group 24. The left and right sides of the main body frame 3 are respectively mounted on the mounting plates 234 of the left and right lifting hinge groups 23 and 234 of the right lifting hinge group 24.

The lifting and tilting mechanism 2 further includes a second connecting rod 25, and both ends of the second connecting rod 25 are respectively connected with the first connecting plate 232 in the left lifting hinge group 23 and the first connecting plate 232 in the right lifting hinge group 24. The synchronization and stability of the left and right lifting hinge groups 23 and 24 can be improved by connecting the first and second connection plates 232 and 233 through the second connection rod 25.

Referring to fig. 7, in an embodiment of the present utility model, the posture adjustment mechanism includes a leg rest driving mechanism 4, a leg rest telescoping mechanism 5, a backrest driving mechanism 7, and a backrest adjustment mechanism 8. The leg rest driving mechanism 4 is arranged on the main body frame 3, and the leg rest telescopic mechanism 5 is movably arranged on the main body frame 3 and is connected with the output end of the leg rest driving mechanism 4; the leg rest bracket 6 is mounted on the leg rest driving mechanism 4. The backrest driving mechanism 7 is arranged on the main body frame 3, and the backrest adjusting mechanism 8 is movably arranged on the main body frame 3 and is connected with the output end of the backrest driving mechanism 7; the back rest bracket 9 is mounted on the back rest drive mechanism 7. The leg rest driving mechanism 4 and the backrest driving mechanism 7 are different driving mechanisms, and the two driving mechanisms can be controlled independently; the leg support driving mechanism 4 and the backrest driving mechanism 7 respectively act on the leg support telescopic mechanism 5 and the backrest adjusting mechanism 8, so that the leg support bracket 6 and the backrest bracket 9 can be independently adjusted, the use is more convenient, and different use requirements can be met.

When the leg rest driving mechanism 4 drives the leg rest telescopic mechanism 5 to extend, the leg rest telescopic mechanism 5 can drive the leg rest support 6 to lift, so that the leg rest support 6 can support the legs of a user. When the leg support driving mechanism 4 drives the leg support telescopic mechanism 5 to retract, the leg support telescopic mechanism 5 can drive the leg support bracket 6 to retract. When the backrest driving mechanism 7 drives the backrest adjusting mechanism 8 to rotate forward of the main body frame 3, the backrest adjusting mechanism 8 can drive the backrest bracket 9 to fall backward (angle between the backrest bracket 9 and the main body frame 3 is increased). When the backrest driving mechanism 7 drives the backrest adjusting mechanism 8 to rotate towards the rear of the main body frame 3, the backrest adjusting mechanism 8 can drive the backrest bracket 9 to rotate forwards (adjust the angle between the backrest bracket 9 and the main body frame 3). In practical application, a user can independently control the leg rest driving mechanism 4 to independently control the leg rest bracket 6 to lift or retract; the backrest driving mechanism 7 can also be independently controlled to independently adjust the angle of the backrest bracket 9; the leg rest driving mechanism 4 and the backrest driving mechanism 7 can be controlled simultaneously so as to adjust the space between the leg rest bracket 6 and the backrest simultaneously; even when the leg rest driving mechanism 4 is controlled and the backrest adjusting mechanism 8 is controlled to adjust the leg rest bracket 6 to a certain degree, the backrest bracket 9 starts to be adjusted.

Referring to fig. 9, in an embodiment of the present utility model, the leg rest driving mechanism 4 includes a second driving motor 41, a second screw 42, and a second moving housing 43. The output end of the second driving motor 41 is connected with one end of the second screw 42, and is used for driving the second screw 42 to rotate. The second movable housing 43 is sleeved on the second screw rod 42 and is in threaded connection with the second screw rod 42. The second drive motor 41 is mounted on the mount, specifically on the second mount. One end of the second movable housing 43, which is far from the second driving motor 41, is connected with the leg rest telescoping mechanism 5, specifically, with the middle position of the second connecting cross bar 81. The second driving motor 41 rotates to drive the second screw rod 42 to rotate around the central axis thereof, and the second screw rod 42 rotates to drive the second movable housing 43 to move along the vertical direction of the second screw rod 42 relative to the second screw rod 42. The second driving motor 41 can realize forward rotation and reverse rotation through control, so that the second screw rod 42 can also rotate forward or reverse rotation, and the second movable housing 43 can move in two directions under the action of the second screw rod 42, so that the leg rest telescopic mechanism 5 is driven to extend or retract.

It is to be understood that in the present embodiment, the backrest driving mechanism 7 has the same structure as the leg rest driving mechanism 4. Referring to fig. 9, the backrest driving mechanism 7 includes a third driving motor 71, a third screw 72, and a third moving housing 73. An output end of the third driving motor 71 is connected to one end of the third screw 72, and is used for driving the third screw 72 to rotate. The third movable housing 73 is sleeved on the third screw 72 and is screwed with the third screw 72. The third drive motor 71 is mounted on the backrest adjustment mechanism 8, in particular in the middle position of the third cross bar 333. One end of the third moving housing 73, which is far from the third driving motor 71, is connected to the mounting base. The third driving motor 71 rotates to drive the third screw 72 to rotate around the central axis thereof, and the third screw 72 rotates to drive the third movable housing 73 to move along the vertical direction of the third screw 72 relative to the third screw 72. The third driving motor 71 can be controlled to perform forward rotation and reverse rotation, so that the third screw 72 can also be rotated forward or reverse rotation, and the third moving housing 73 can be moved in both directions by the third screw 72; since the third movable housing 73 and the mounting seat are relatively fixed, the relative movement between the third movable housing 73 and the third driving motor 71 is the movement of the third driving motor 71 relative to the main body frame 3; the third driving motor 71 is operated to drive the back adjusting mechanism 8 to rotate back and forth, and finally the angle of the back bracket 9 is adjusted.

Referring to fig. 8, in an embodiment of the present utility model, the main body frame 3 includes a left side frame 31, a right side frame 32, and a cross bar group 33. The left side frame 31 and the right side frame 32 have the same structure and are symmetrically arranged; the main bodies of the left side frame 31 and the right side frame 32 are quadrilateral frame structures formed by four rods; the left side frame 31 and the right side frame 32 are opposite and spaced apart. A left vertical bar 311 is provided in the middle rear position of the left side frame 31, a right vertical bar 321 is provided in the middle rear position of the right side frame 32, and the left vertical bar 311 and the right vertical bar 321 are disposed opposite to each other. The cross bar group 33 comprises a first cross bar 331, wherein two ends of the first cross bar 331 are detachably connected with the left vertical bar 311 and the right vertical bar 321 respectively, and are positioned at the middle position close to the left vertical bar 311 and the right vertical bar 321. The leg rest driving mechanism 4 and the backrest driving mechanism 7 are both installed on the first cross bar 331, the leg rest driving mechanism 4 is located in front of the first cross bar 331, and the backrest driving mechanism 7 is located behind the first cross bar 331.

Through setting up the main part frame 3 of frame-type, directly regard main part frame 3 as sofa main part and seat frame, saved traditional wood frame structure, consequently overall structure is simpler, and manufacturing process is simpler, and manufacturing cost is lower, and the product steadiness is good, and the weight of whole product is lighter. The first cross rod 331, the leg support driving mechanism 4, the leg support telescopic mechanism 5, the backrest driving mechanism 7 and the backrest adjusting mechanism 8 can be located inside the main body frame 3, so that the space utilization rate inside the main body frame 3 is high, the packaging volume of products is reduced, the cabinet loading amount is increased, and the transportation cost is further reduced. And the leg rest driving mechanism 4 and the backrest driving mechanism 7 are both arranged on the first transverse rod 331, so that the whole structure is simplified, and the assembly is convenient.

Referring to fig. 8, the crossbar group 33 further includes a second crossbar 332, a third crossbar 333, and a fourth crossbar 334. One end of the second cross bar 332 is detachably connected to the upper front corner of the left side frame 31, and the other end of the second cross bar 332 is detachably connected to the upper front corner of the right side frame 32. One end of the third cross bar 333 is detachably connected to the upper end rear corner of the left side frame 31, and the other end of the third cross bar 333 is detachably connected to the upper end rear corner of the right side frame 32. The fourth cross bar 334 is detachably connected to the left side frame 31 and the right side frame 32 at both ends thereof. That is, the bar connecting between the left side frame 31 and the right side frame 32 is detachably connected to both the left side frame 31 and the right side frame 32. Specifically, connecting pieces may be welded to two ends of the second cross bar 332, the third cross bar 333 and the fourth cross bar 334, hole sites are formed on the connecting pieces, then hole sites are also formed on corresponding positions of the left side frame 31 and the right side frame 32, and then the second cross bar 332, the third cross bar 333 and the fourth cross bar 334 are connected to the left side frame 31 and the right side frame 32 by connecting pieces (such as screw bolts and the like). Through setting up main body frame 3 to detachable mode, can make things convenient for unified production and make, main body frame 3 is before the equipment moreover, and the volume is littleer, more convenient transportation, and the cabinet volume is bigger, and the cost of transportation is lower.

Of course, in other embodiments, the structures where the second rail 332, the third rail 333, and the fourth rail 334 connect with the left side frame 31 and the right side frame 32 may be other ways. For example, two ends of the second cross bar 332, the third cross bar 333 and the fourth cross bar 334 are directly clamped on the left side frame 31 and the right side frame 32 in a clamping manner; or the two ends of the second cross bar 332, the third cross bar 333 and the fourth cross bar 334 are provided with threads in a threaded connection mode, and can be directly screwed into the threaded holes on the left side frame 31 and the right side frame 32. The present embodiment is not limited to the detachable connection of the main body frame 3, as long as the second cross bar 332, the third cross bar 333, and the fourth cross bar 334 can be detachably connected to the left side frame 31 and the right side frame 32.

Referring to fig. 9, in one embodiment of the present utility model, the leg rest telescoping mechanism 5 includes a first connecting rail 51, a left hinge assembly 52, and a right hinge assembly 53. The left hinge assembly 52 and the right hinge assembly 53 are identical in structure and symmetrically disposed, wherein the left hinge assembly 52 is movably mounted on the left side frame 31 and the right hinge assembly 53 is movably mounted on the right side frame 32. The first connecting cross bar 51 is connected to the output end of the leg rest driving mechanism 4, and both ends are connected to the left hinge assembly 52 and the right hinge assembly 53, respectively. The leg rest drive mechanism 4 may push or pull the first connecting rail 51 forward or backward. When the leg rest driving mechanism 4 pushes the first connecting rail 51 forward, the left hinge assembly 52 and the right hinge assembly 53 are simultaneously extended, thereby lifting the leg rest bracket 6. When the leg rest drive mechanism 4 pulls the first connecting rail 51 rearward, the left hinge assembly 52 and the right hinge assembly 53 retract synchronously, thereby retracting the leg rest bracket 6. The leg rest telescopic mechanism 5 enables the leg rest bracket 6 to be regulated more stably and smoothly by arranging the left hinge assembly 52 and the right hinge assembly 53. The synchronous adjustment of the left hinge assembly 52 and the right hinge assembly 53 can be realized through the first connecting cross rod 51, and only one leg support driving mechanism 4 is needed, so that the cost is reduced, and the synchronism can be improved. The first connecting cross rod 51 can also improve the structural stability of the left hinge assembly 52 and the right hinge assembly 53, and ensure the stability of sofa adjustment.

As previously described, the left hinge assembly 52 and the right hinge assembly 53 are identical in structure; accordingly, only the specific structure of the left hinge assembly 52 will be described in detail in this embodiment, and repetitive description will be avoided.

Referring to fig. 10, in particular, the left hinge assembly 52 includes a first link 521, a second link 522, a third link 523, and a fourth link 524. One end of the first link 521 and one end of the second link 522 are rotatably connected to the left frame 31. The other end of the first link 521 is rotatably connected to one end of the third link 523. One end of the second link 522 is rotatably coupled to one end of the fourth link 524. The third link 523 is rotatably connected to the fourth link 524. The other end of the third link 523 and the other end of the fourth link 524 are connected to the leg rest bracket 6. One end of the first connecting rail 51 is connected to the second link 522, and the other end of the first connecting rail 51 is connected to the second link 522 in the right hinge assembly 53. The structure of the left hinge assembly 52 provided in the present embodiment can achieve lifting or retraction of the leg rest bracket 6 by a simple structure.

Referring to fig. 10, the left hinge assembly 52 further includes a fixing member 525. One end of the first connecting rod 521 and one end of the second connecting rod 522 are rotatably connected with a fixing member 525, and the fixing member 525 is fixedly connected with the left side frame 31; that is, one ends of the first link 521 and the second link 522 are rotatably connected to the fixing member 525, and the first link 521 and the second link 522 are connected to the left side frame 31. By providing the fixing member 525, the left hinge assembly 52 can be conveniently assembled, and the left hinge assembly 52 is more complete in structure; but also to more conveniently mount the left hinge assembly 52 on the left side frame 31. On the other hand, the fixing member 525 connects the first link 521 and the second link 522, enabling the extension and retraction of the left hinge assembly 52 to be smoother.

Referring to fig. 9, in an embodiment of the present utility model, the backrest adjusting mechanism 8 includes a second connecting rail 81, a left adjusting member 82, and a right adjusting member 83. The left adjusting member 82 and the right adjusting member 83 are identical in structure and symmetrically disposed, wherein the left adjusting member 82 is rotatably mounted on the left side frame 31, and the right adjusting member 83 is rotatably mounted on the right side frame 32. The second connecting rail 81 is connected to the backrest driving mechanism 7, in particular the second driving motor 41 is mounted on the second connecting rail 81. Both ends of the second connecting rail 81 are connected to the left and right adjusting members 82 and 83, respectively. The backrest driving mechanism 7 can pull or push the second connecting rail 81 forward or backward. When the backrest driving mechanism 7 pulls the second connecting rail 81 forward, the left and right adjusting members 82 and 83 are rotated backward in synchronization, thereby widening the inclination angle of the backrest bracket 9 with respect to the main body frame 3. When the backrest driving mechanism 7 pushes the second connecting rail 81 backward, the left adjusting member 82 and the right adjusting member 83 are rotated forward synchronously, thereby reducing the inclination angle of the backrest bracket 9 relative to the main body frame 3. The backrest adjusting mechanism 8 enables the backrest bracket 9 to be adjusted more smoothly by arranging the left adjusting piece 82 and the right adjusting piece 83. The synchronous adjustment of the left adjusting piece 82 and the right adjusting piece 83 can be realized through the second connecting cross rod 81, and only one backrest driving mechanism 7 is needed, so that the cost is reduced, and the synchronism can be improved. The second connecting cross bar 81 can further improve the structural stability of the left adjusting member 82 and the right adjusting member 83, and ensure the stability of sofa adjustment.

Referring to fig. 9, the left adjusting member 82 extends upward to form a left plug portion 821, and the right adjusting member 83 extends upward to form a right plug portion 831, and the left plug portion 821 and the right plug portion 831 have the same shape.

Referring to fig. 11 and 12, further, a left mounting plate 91234 is provided on the left side of the back support 9, and a right mounting plate 92234 is provided on the right side of the back support 9. The left mounting plate 91234 and the right mounting plate 92234 are identical in structure. Left slot 911 is provided on left mounting plate 91234, and right slot 921 is provided on right mounting plate 92234. The left plug-in portion 821 is inserted into the left slot 911, and the right plug-in portion 831 is inserted into the right slot 921. Through the structural design of left mounting plate 91234 and right mounting plate 92234, can realize the detachable connection between back support 9 and back adjustment mechanism 8, promptly the detachable connection between back support 9 and main body frame 3. Therefore, the backrest bracket 9 can be detached during packaging, the backrest bracket 9 can be placed at the bottom of the main body frame 3 for packaging, the internal space of the main body frame 3 is fully utilized, the packaging volume of the product is greatly reduced, the cabinet loading amount is improved, and the transportation cost is reduced.

In an embodiment of the present utility model, the armrest frame 10 is detachably mounted to both sides of the main body frame 3. The armrest frame 10 is a base frame of a sofa armrest, and the armrest frame 10 is installed above the left and right sides of the main body frame 3. The armrest frame 10 is detachably arranged relative to the main body frame 3, so that in the finished sofa, the armrest can also be detachably arranged relative to the sofa main body. After the armrest frame 10 is detached, the armrest frame 10 can be placed in the middle of the main body frame 3 to reduce the packaging volume. In the finished sofa, the armrests can be placed at the seat position of the sofa main body after being detached, so that the package submission of the finished sofa can be reduced, the cabinet loading quantity is improved, and the package cost and the transportation cost are reduced.

Referring to fig. 8 and 13, specifically, the main body frame 3 is provided with a sleeve rod 34 with a hollow interior and an open upper end, the armrest frame 10 is provided with a downward extending rod 101, and the rod 101 is inserted into the sleeve rod 34. Two loop bars 34 are arranged above the left side of the main body frame 3 at intervals, two loop bars 34 are also arranged above the right side of the main body frame 3 at intervals, and a rectangle is enclosed between the four loop bars 34. Two inserting rods 101 are arranged at intervals at the lower end of the handrail frame 10, and the size of each inserting rod 101 is smaller than the hollow size of the inside of the loop bar 34, so that the inserting rods 101 can be inserted into the loop bar 34 from top to bottom. The armrest frame 10 can be quickly and easily mounted on the main body frame 3 by the design of the loop bar 34 and the insert bar 101. On the other hand, in order to improve the stability of the handrail frame 10, screw holes (not shown) may be formed in positions corresponding to the insert rod 101 and the loop rod 34, and after the insert rod 101 is inserted into the loop rod 34, the screw holes in the insert rod 101 and the loop rod 34 are opposite to each other, and then screws are used to screw into the screw holes, so as to connect and fix the insert rod 101 and the loop rod 34, thereby improving the stability of the handrail frame 10 and preventing the handrail frame 10 from falling easily.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A hair-lifting assisting hair-frame, comprising:

a bottom frame (1);

a lifting/lowering forward tilting mechanism (2) mounted on the bottom frame (1);

A main body frame (3) which is installed at the output end of the lifting and tilting mechanism (2) and can be lifted and tilted relative to the bottom frame (1) under the action of the lifting and tilting mechanism (2);

a posture adjustment mechanism mounted on the main body frame (3);

A leg rest bracket (6) mounted at one end of the posture adjustment mechanism near the front of the main body frame (3), the posture adjustment mechanism being capable of adjusting the leg rest bracket (6) to be lifted or retracted;

And the backrest bracket (9) is arranged at one end of the gesture adjusting mechanism, which is close to the rear of the main body frame (3), and the gesture adjusting mechanism can adjust the angle between the backrest bracket (9) and the main body frame (3).

2. A hair-lifting aid stand according to claim 1, wherein: the lifting forward tilting mechanism (2) comprises a lifting forward tilting driving device (21), a first connecting rod (22), a left lifting hinge group (23) and a right lifting hinge group (24), the lifting forward tilting driving device (21) is installed on the bottom frame (1), the first connecting rod (22) is installed at the output end of the lifting forward tilting driving device (21), the left lifting hinge group (23) and the right lifting hinge group (24) are movably installed on the bottom frame (1) and are respectively connected with two ends of the first connecting rod (22), two sides of the main body frame (3) are respectively installed on the left lifting hinge group (23) and the right lifting hinge group (24), and the left lifting hinge group (23) and the right lifting hinge group (24) are identical in structure.

3. A hair-lifting aid stand as claimed in claim 2, wherein: the lifting forward-tilting driving device (21) comprises a first driving motor (211), a first screw rod (212) and a first movable housing (213), wherein the first driving motor (211) is connected with one end of the first screw rod (212) and used for driving the first screw rod (212) to rotate, the first movable housing (213) is sleeved on the first screw rod (212) and is in threaded connection with the first screw rod (212), the first driving motor (211) is installed on the bottom frame (1), and one end of the first movable housing (213) away from the first driving motor (211) is connected with the first connecting rod (22).

4. A hair-lifting aid stand as claimed in claim 2, wherein: the left lifting hinge group (23) comprises a fixed plate (231), a first connecting plate (232), a second connecting plate (233) and a mounting plate (234); the fixed plate (231) is arranged on the bottom frame (1), one end of the first connecting plate (232) and one end of the second connecting plate (233) are rotatably connected with the fixed plate (231), and the other end of the first connecting plate (232) and the other end of the second connecting plate (233) are rotatably connected with the mounting plate (234); one end of the first connecting rod (22) is connected with the mounting plate (234), and the main body frame (3) is mounted on the mounting plate (234).

5. A hair-lifting aid stand as claimed in claim 4, wherein: the lifting forward tilting mechanism (2) further comprises a second connecting rod (25), and two ends of the second connecting rod (25) are respectively connected with a first connecting plate (232) in the left lifting hinge group (23) and a first connecting plate (232) in the right lifting hinge group (24).

6. A hair-lifting aid stand according to claim 1, wherein: the gesture adjusting mechanism comprises a leg support driving mechanism (4), a leg support telescopic mechanism (5), a backrest driving mechanism (7) and a backrest adjusting mechanism (8); the leg support driving mechanism (4) is arranged on the main body frame (3), the leg support telescopic mechanism (5) is movably arranged on the main body frame (3) and is connected with the output end of the leg support driving mechanism (4), and the leg support bracket (6) is arranged on the leg support driving mechanism (4); the backrest driving mechanism (7) is mounted on the main body frame (3), the backrest adjusting mechanism (8) is movably mounted on the main body frame (3) and is connected with the output end of the backrest driving mechanism (7), and the backrest bracket (9) is mounted on the backrest driving mechanism (7).

7. A hair-lifting aid stand as claimed in claim 6, wherein: the main body frame (3) comprises a left side frame (31), a right side frame (32) opposite to the left side frame (31) and arranged at intervals, and a cross bar group (33) connected with the left side frame (31) and the right side frame (32), a left vertical bar (311) is arranged on the left side frame (31), a right vertical bar (321) is arranged on the right side frame (32), the cross bar group (33) comprises a first cross bar (331), two ends of the first cross bar (331) are respectively connected with the left vertical bar (311) and the right vertical bar (321), and the leg rest driving mechanism (4) and the backrest driving mechanism (7) are all arranged on the first cross bar (331).

8. A hair-lifting aid stand as claimed in claim 7, wherein: the leg rest telescopic mechanism (5) comprises a first connecting cross rod (51), a left hinge assembly (52) and a right hinge assembly (53), wherein the left hinge assembly (52) is movably arranged on the left side frame (31), the right hinge assembly (53) is movably arranged on the right side frame (32), the first connecting cross rod (51) is connected with the output end of the leg rest driving mechanism (4), two ends of the first connecting cross rod are respectively connected with the left hinge assembly (52) and the right hinge assembly (53), and the left hinge assembly (52) and the right hinge assembly (53) are identical in structure;

The backrest adjusting mechanism (8) comprises a second connecting cross rod (81), a left adjusting piece (82) and a right adjusting piece (83), the left adjusting piece (82) is rotatably mounted on the left side frame (31), the right adjusting piece (83) is rotatably mounted on the right side frame (32), the second connecting cross rod (81) is connected with the output end of the backrest driving mechanism (7), two ends of the second connecting cross rod are respectively connected with the left adjusting piece (82) and the right adjusting piece (83), and the left adjusting piece (82) and the right adjusting piece (83) are identical in structure and are connected with the backrest bracket (9).

9. A hair-lifting aid stand according to claim 1 or 7, characterized in that: both sides of the main body frame (3) are detachably provided with handrail frames (10).

10. A hair-lifting aid stand as claimed in claim 9, wherein: the novel handrail is characterized in that a sleeve rod (34) with a hollow inside and an open upper end is arranged on the main body frame (3), a downward extending inserting rod (101) is arranged on the handrail frame (10), and the inserting rod (101) is inserted into the sleeve rod (34).