CN208740411U - A kind of structure improved mechanical extending device - Google Patents

Abstract

The utility model provides a kind of structure improved mechanical extending device.It is solved in existing mechanical extending device, and the sliding block of line handspike guide rail motor is to be connected by take-up housing with rear installing pipe, and rear installing pipe is connected by joining beam with installation part, is needed using more part, the technical problems such as production cost height.This structure improved mechanical extending device, including pedestal and the functional frame being set on the base, functional frame includes leg structure, portions structure and back structures, leg structure is connected with portions structure, portions structure is connected with back structures, leg structure includes foot lever three, portions structure includes installation part, the driving mechanism that setting can make functional frame be unfolded or pack up on pedestal, driving mechanism includes line handspike guide rail motor, preceding fixing pipe and rear installing pipe, and line handspike guide rail motor includes motor head, guide rail and sliding block.The utility model has the advantages that production cost is low.

Description

A kind of structure improved mechanical extending device

Technical field

The utility model belongs to sofa technical field, is related to a kind of structure improved mechanical extending device.

Background technique

As the improvement of people's living standards, and the pursuit to quality of the life, common sofa can no longer meet whole Hurry back and forth day tired office worker for work, and more and more people select Electric sofa chair at present, and this Electric sofa chair is by pressing Raising and lowering key on button can control the back raising and lowering of sofa, while people's back raising and lowering, people Position on cushion can also change, for example when back decline, people can move backward buttocks self, on the contrary to Forward Dynamic, this sofa is more comfortable, the fatigue with being conducive to alleviate people.

In existing mechanical extending device, the sliding block of line handspike guide rail motor is by take-up housing and rear installing pipe phase Even, rear installing pipe is connected by joining beam with installation part, and rear installing pipe is bent tubular body, meanwhile, functional frame is adopted when three appearances switch It is limited, is needed using more part, high production cost with positive stop strip, therefore, design a kind of structure improved machinery Extending apparatus is necessary.

Summary of the invention

The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of structure improved machinery Extending apparatus, the mechanical extending device have the characteristics that production cost is low.

The purpose of this utility model can be realized by the following technical scheme: a kind of structure improved mechanical extending device, Including pedestal and the functional frame being set on the base, functional frame includes leg structure, portions structure and back structures, leg structure It is connected with portions structure, portions structure is connected with back structures, and leg structure includes foot lever three, and portions structure includes installation Part, which is characterized in that the driving mechanism that setting can make functional frame be unfolded or pack up on the pedestal, driving mechanism includes that straight line pushes away Rod guide motor, preceding fixing pipe and rear installing pipe, line handspike guide rail motor include motor head, guide rail and sliding block, sliding block activity It being connected on guide rail, guide rail is connected on motor head, and motor head passes through to be hinged in the middle part of detachable structure one and preceding fixing pipe, The end of preceding fixing pipe is connected with foot lever three, and the end of rear installing pipe is connected with the middle part of installation part, and rear installing pipe passes through removable Structure two is unloaded to be hinged with sliding block.

The preceding fixing pipe and rear installing pipe are straight tube body.

Using the above structure, by optimizing the shape of installing pipe, and rear installing pipe and sliding block are used into hinged connection side Formula greatly reduces the number of parts between sliding block and installation part, meanwhile, rear installing pipe uses straight tube body, replaces original Bent tubular body, can it is significantly less after installing pipe manufacture difficulty and the time, so as to reduce being fabricated to for entire mechanical extending device This, production cost is low.

The back structures include back rest and rear connectors, and limit group is additionally provided between back rest and rear connectors Part, limit assembly include limit shaft and the limiting slot that is provided on rear connectors, and limit shaft is fixed in back rest, and limit shaft In limiting slot.

Using the above structure, when being in sitting posture, limit shaft prevents back rest back spin from pushing in the upper end of limiting slot, enhancing The stability of entire functional frame when sitting posture；When in lying posture, limit shaft limits the rotation of back rest with this in the upper end of limiting slot Angle guarantees angle of the sofa backrest in lying posture；It is moved in limiting slot by limit shaft, to functional frame in sitting posture, TV appearance It is limited when switching between lying posture three, the limit method of original positive stop strip is replaced to reduce that is, without using positive stop strip The usage quantity of plate, it is ingenious in design.

Also rotation is provided with axle sleeve outside the limit shaft.

Using the above structure, can be made between limit shaft and back rest by axle sleeve for sliding friction.

The end of the preceding fixing pipe is connected by two bolts with foot lever three.

It using the above structure, is not in relatively rotate between fixing pipe and foot lever three before can making.

The end of installing pipe is connected by two bolts with the middle part of installation part after described.

Using the above structure, can make between rear installing pipe and installation part to be not in relatively rotate.

The detachable structure one includes hinging pin shaft one and circlip one, has connection sheet one, connection sheet one on motor head On offer connecting hole one, there is locating plate one in preceding fixing pipe, offer location hole one on locating plate one, hinging pin shaft one One end has the limiting section one of protrusion, and the other end of hinging pin shaft one sequentially passes through connecting hole one and location hole one, and circlip one blocks It connects on the other end of hinging pin shaft one.

Using the above structure, by the collective effect of hinging pin shaft one and circlip one, can make motor head and preceding fixing pipe it Between realize fast assembling-disassembling.

The detachable structure two includes hinging pin shaft two and circlip two, has connection sheet two on sliding block, in connection sheet two Connecting hole two is offered, the middle part of rear installing pipe has locating plate two, offers location hole two, hinging pin shaft two on locating plate two One end there is the limiting section two of protrusion, the other end of hinging pin shaft two sequentially passes through connecting hole two and location hole two, circlip two It is connected on the other end of hinging pin shaft two.

Using the above structure, by the collective effect of hinging pin shaft two and circlip two, can make between sliding block and rear installing pipe Realize fast assembling-disassembling.

The circlip one and circlip two are R shape circlip.

Compared with prior art, this structure improved mechanical extending device has the advantage that

1, by the shape of optimization installing pipe in the utility model, and rear installing pipe and sliding block are used into hinged connection side Formula greatly reduces the number of parts between sliding block and installation part, meanwhile, rear installing pipe uses straight tube body, replaces original Bent tubular body, can it is significantly less after installing pipe manufacture difficulty and the time, so as to reduce being fabricated to for entire mechanical extending device This, production cost is low.

2, when being in sitting posture, limit shaft prevents back rest back spin from pushing in the upper end of limiting slot, enhances entire function when sitting posture The stability of energy frame；When in lying posture, limit shaft limits the rotation angle of back rest with this in the upper end of limiting slot, guarantees husky Send out angle of the backrest in lying posture；Moved in limiting slot by limit shaft, to functional frame sitting posture, TV appearance and lying posture three it Between switch when limited, replace the limit method of original positive stop strip to reduce the use number of plate that is, without using positive stop strip Amount, it is ingenious in design.

Detailed description of the invention

Fig. 1 is the schematic perspective view of mechanical extending device in the prior art.

Fig. 2 is the schematic perspective view of the utility model.

Fig. 3 is the enlarged drawing in Fig. 2 at A.

Fig. 4 is the enlarged drawing in Fig. 2 at B.

Fig. 5 is the enlarged drawing in Fig. 2 at C.

Fig. 6 is the schematic perspective view that the utility model removes part.

Fig. 7 is the schematic perspective view of headrest adjusting mechanism in the utility model.

Fig. 8 is the schematic perspective view that headrest adjusting mechanism removes part in the utility model.

Fig. 9 is the schematic perspective view of driving structure in the utility model.

In figure, 1, pedestal；2, positive stop strip；3, guide rail；4, rear connectors；4a, limiting slot；5, back rest；6, sliding block；6a, Connection sheet two；7, installation part；8, rear installing pipe；8a, locating plate two；9, take-up housing；10, motor head；10a, connection sheet one；11, Preceding fixing pipe；11a, locating plate one；12, foot lever three；13, limit shaft；14, circlip one；15, hinging pin shaft one；16, hinging pin shaft Two；17, circlip two；21, installing frame；22, bolt；23, drive rod；23a, reinforcing portion；24, main swing component；25, side connector； 26, from swing component；27, head rest plate；28, push-rod electric machine；29, head rest connector；30, supporting plate.

Specific embodiment

It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.

As shown in Fig. 2-Fig. 9, this structure improved mechanical extending device, including pedestal 1 and the function being arranged on pedestal 1 Frame, functional frame include that leg structure, portions structure and back structures, leg structure are connected with portions structure, portions structure with Back structures are connected, and leg structure includes foot lever 3 12, and portions structure includes installation part 7, and setting can make functional frame on pedestal 1 The driving mechanism be unfolded or packed up, driving mechanism includes line handspike guide rail motor, preceding fixing pipe 11 and rear installing pipe 8, at this In embodiment, line handspike guide rail motor uses the existing product that can buy of market；Line handspike guide rail motor includes motor First 10, guide rail 3 and sliding block 6, sliding block 6 are flexibly connected on guides 3, and guide rail 3 is connected on motor head 10, and motor head 10 passes through can Detaching structure one and the middle part of preceding fixing pipe 11 are hinged, and the end of preceding fixing pipe 11 is connected with foot lever 3 12, rear installing pipe 8 End is connected with the middle part of installation part 7, and rear installing pipe 8 is hinged by detachable structure two with sliding block 6；Wherein, leg structure, Portions structure and back structures are using the division mode in application number 201320543794.7.

Preceding fixing pipe 11 and rear installing pipe 8 are straight tube body.

Using the structure, hinged connection side is used with sliding block 6 by optimizing the shape of installing pipe, and by rear installing pipe 8 Formula greatly reduces the number of parts between sliding block 6 and installation part 7, meanwhile, rear installing pipe 8 uses straight tube body, replaces original Bent tubular body, can it is significantly less after installing pipe 8 manufacture difficulty and the time, so as to reduce the production of entire mechanical extending device Cost, production cost are low.

Back structures include back rest 5 and rear connectors 4, and limit group is additionally provided between back rest 5 and rear connectors 4 Part, limit assembly include limit shaft 13 and the limiting slot 4a that is provided on rear connectors 4, and limit shaft 13 is fixed in back rest 5, In the present embodiment, limit shaft 13 can by welding or be threadedly coupled mode be fixed in back rest 5；And limit shaft 13 are located in limiting slot 4a.

Using the structure, when being in sitting posture, limit shaft 13 prevents 5 back spin of back rest from pushing in the upper end of limiting slot 4a, increases The stability of entire functional frame when strong sitting posture；When in lying posture, limit shaft 13 limits back rest in the upper end of limiting slot 4a, with this 5 rotation angle guarantees angle of the sofa backrest in lying posture；It is moved in limiting slot 4a by limit shaft 13, to functional frame Limited when switching between sitting posture, TV appearance and lying posture three, replace the limit method of original positive stop strip 2, i.e., without using Positive stop strip 2 reduces the usage quantity of plate, ingenious in design.

Also rotation is provided with axle sleeve outside limit shaft 13.

Using the structure, can be made between limit shaft 13 and back rest 5 by axle sleeve for sliding friction.

The end of preceding fixing pipe 11 is connected by two bolts with foot lever 3 12.

It is not in relatively rotate between fixing pipe 11 and foot lever 3 12 before can making using the structure.

The end of installing pipe 8 is connected by two bolts with the middle part of installation part 7 afterwards.

Using the structure, can make to be not in relatively rotate between rear installing pipe 8 and installation part 7.

Detachable structure one includes hinging pin shaft 1 and circlip 1, has one 10a of connection sheet, connection on motor head 10 Connecting hole one is offered on one 10a of piece, and there is one 11a of locating plate in preceding fixing pipe 11, offer location hole on one 11a of locating plate One, one end of hinging pin shaft 1 has the limiting section one of protrusion, and the other end of hinging pin shaft 1 sequentially passes through connecting hole one With location hole one, circlip 1 is connected on the other end of hinging pin shaft 1.

Motor head 10 and preceding fixation can be made by the collective effect of hinging pin shaft 1 and circlip 1 using the structure Fast assembling-disassembling is realized between pipe 11.

Detachable structure two includes hinging pin shaft 2 16 and circlip 2 17, has two 6a of connection sheet, connection sheet two on sliding block 6 Connecting hole two is offered on 6a, the middle part of rear installing pipe 8 has two 8a of locating plate, offers location hole two on two 8a of locating plate, One end of hinging pin shaft 2 16 has the limiting section two of protrusion, and the other end of hinging pin shaft 2 16 sequentially passes through connecting hole two and determines Position hole two, circlip 2 17 are connected on the other end of hinging pin shaft 2 16.

Sliding block 6 and rear installing pipe 8 can be made by the collective effect of hinging pin shaft 2 16 and circlip 2 17 using the structure Between realize fast assembling-disassembling.

Circlip 1 and circlip 2 17 are R shape circlip.

In existing mechanical extending device, the sliding block 6 of line handspike guide rail motor is by take-up housing 9 and rear installing pipe 8 It is connected, rear installing pipe 8 is connected by joining beam with installation part 7, and rear installing pipe 8 is bent tubular body, meanwhile, functional frame switches in three appearances Shi Caiyong positive stop strip 2 is limited, as shown in Figure 1.

Back rest 5 is also connected with installing frame 21, and headrest adjusting mechanism is provided on installing frame 21, and headrest adjusting mechanism includes Head rest plate 27, head rest connector 29, main swing component 24, from swing component 26 and side connector 25,29 upper end of head rest connector and head Backup plate 27 is connected, and in the present embodiment, 29 upper end of head rest connector is connected with 27 end of head rest plate by bolted connection； It is hinged in the middle part of head rest connector 29 and from 26 upper end of swing component, is hinged from 26 lower end of swing component and side connector 25, side connects Fitting 25 is connected with installing frame 21, and in the present embodiment, side connector 25 is by way of rivet interlacement and 21 side of installing frame It is connected；29 lower end of head rest connector is connected with main 24 upper end of swing component, and main 24 lower end of swing component and side connector 25 are hinged, and Head rest connector 29, main swing component 24, side connector 25 and from swing component 26 4 formed a quadrilateral structure, main swing component 24 driving structures that also it can be driven to swing back and forth with one are connected；In the present embodiment, head rest connector 29, main swing component 24, It is two groups from the quantity of swing component 26 and side connector 25.

Driving structure includes drive rod 23 and push-rod electric machine 28, and push-rod electric machine 28 is hinged on installing frame 21, and push rod electricity Machine 28 is located at 27 lower section of head rest plate, and the push rod of push-rod electric machine 28 is vertically arranged, the push rod of drive rod 23 lower end and push-rod electric machine 28 End is connected, and 23 upper end of drive rod and main swing component 24 are hinged.

Power at push-rod electric machine 28 can effectively be passed to by the effect of drive rod 23 by main pendulum using the structure Moving part 24.

23 lower end of drive rod is connected by two bolts 22 with the push rod end of push-rod electric machine 28.

Using the structure, the push rod of drive rod 23 and push-rod electric machine 28 can be firmly connected to one by two bolts 22 It rises, meanwhile, it also can avoid relatively rotating between the two, connection is reliable.

Also there is reinforcing portion 23a on drive rod 23.

Using the structure, local stiffening can be carried out to drive rod 23 by reinforcing portion 23a, to promote the whole of drive rod 23 Body stress performance.

The supporting plate 30 limited for push-rod electric machine 28 is additionally provided on installing frame 21, and supporting plate 30 is L-shaped, 30 upper end of supporting plate It is connected with installing frame 21, in the present embodiment, 30 upper end of supporting plate is connected by way of rivet interlacement with installing frame 21；Supporting plate 30 Lower end be positive stop end, and the fuselage of push-rod electric machine 28 can be in contact with positive stop end.

Using the structure, is limited when can be worked push-rod electric machine 28 by supporting plate 30, make the fuselage of push-rod electric machine 28 It is swung in normal range.

Using the structure, the push rod for controlling push-rod electric machine 28 is moved up and down, and the push rod of push-rod electric machine 28 drives drive rod 23 It moves up and down, drive rod 23 drives main swing component 24 to swing back and forth, and under the action of main swing component 24 is with from swing component 26, makes head It swinging back and forth by connector 29, head rest connector 29 drives head rest plate 27 to swing back and forth, and head rest plate 27 is adjusted and arrives required position, To can preferably support on the head of spectators by head rest plate 27, it is applicable to the use demand of different spectators.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Claims (9)

1. a kind of structure improved mechanical extending device, including pedestal and the functional frame being set on the base, functional frame includes leg Portion's structure, portions structure and back structures, leg structure are connected with portions structure, and portions structure is connected with back structures, Leg structure includes foot lever three, and portions structure includes installation part, which is characterized in that setting can be such that functional frame is unfolded on the pedestal Or the driving mechanism packed up, driving mechanism include line handspike guide rail motor, preceding fixing pipe and rear installing pipe, line handspike guide rail Motor includes motor head, guide rail and sliding block, and sliding block is movably connected on guide rail, and guide rail is connected on motor head, and motor head passes through It is hinged in the middle part of detachable structure one and preceding fixing pipe, the end of preceding fixing pipe is connected with foot lever three, the end of rear installing pipe It is connected with the middle part of installation part, rear installing pipe is hinged by detachable structure two with sliding block.

2. structure improved mechanical extending device according to claim 1, which is characterized in that the preceding fixing pipe and rear peace Tubulature is straight tube body.

3. structure improved mechanical extending device according to claim 1, which is characterized in that the back structures include leaning on Back piece and rear connectors, are additionally provided with limit assembly between back rest and rear connectors, limit assembly includes limit shaft and opens up Limiting slot on rear connectors, limit shaft are fixed in back rest, and limit shaft is located in limiting slot.

4. structure improved mechanical extending device according to claim 3, which is characterized in that also rotated outside the limit shaft It is provided with axle sleeve.

5. structure improved mechanical extending device according to claim 1, which is characterized in that the end of the preceding fixing pipe It is connected by two bolts with foot lever three.

6. structure improved mechanical extending device according to claim 5, which is characterized in that the end of installing pipe after described It is connected by two bolts with the middle part of installation part.

7. structure improved mechanical extending device according to claim 1, which is characterized in that the detachable structure one wraps It includes hinging pin shaft one and circlip one, there is connection sheet one on motor head, offer connecting hole one in connection sheet one, in preceding fixing pipe With locating plate one, location hole one is offered on locating plate one, one end of hinging pin shaft one has the limiting section one of protrusion, hingedly The other end of pin shaft one sequentially passes through connecting hole one and location hole one, and circlip one is connected on the other end of hinging pin shaft one.

8. structure improved mechanical extending device according to claim 7, which is characterized in that the detachable structure two wraps It includes hinging pin shaft two and circlip two, there is connection sheet two on sliding block, offer connecting hole two in connection sheet two, in rear installing pipe Portion has locating plate two, and location hole two is offered on locating plate two, and one end of hinging pin shaft two has the limiting section two of protrusion, hinge The other end of outbound axis two sequentially passes through connecting hole two and location hole two, and circlip two is connected on the other end of hinging pin shaft two.

9. structure improved mechanical extending device according to claim 8, which is characterized in that the circlip one and circlip two It is R shape circlip.