CN209573970U - A kind of multifunction chair with pallet and back-rest means for chair - Google Patents

Abstract

The utility model relates to chair technology fields, especially a kind of multifunction chair with pallet and back-rest means for chair, including back bracket, pallet, pallet lift mechanism and lean against mobile regulating mechanism, mobile regulating mechanism is leaned against to be fixed on pallet, back bracket, which is movably connected on, leans against mobile regulating mechanism, and the utility model can be self-locking by tray position using turbine and worm screw, not gas bar explosion safety problem, due to worm gear and worm screw engagement system, operate very easily；Back bracket is foldable, and adjustable posture seating angle, and packaging volume reduces much, and user hardly needs oneself carrying easy to assembly；Backrest support frame can allow student voluntarily to adjust using bevel type gear mechanism and screw body for adjusting backrest front-rear position, improve child's manipulative ability and self judgment proper height.

Description

A kind of multifunction chair with pallet and back-rest means for chair

Technical field

The utility model relates to chair technology field, especially a kind of multifunction chair with pallet and back-rest means for chair.

Background technique

With the development of the society, and people for the increasingly attention of education, the quantity of study of present student is also in day Benefit increases, and the task amount of operation is also increasing, it is therefore desirable to and learnt and read on chair for a long time, but due to sitting Appearance it is incorrect, in addition various multiple functional electronic products, eyesight and body growth for learner can all cause bad Influence, chair currently on the market is provided to comfort and is designed, not can guarantee user and keep one when in use Good sitting posture.

In addition the chair lift of the prior art is declined using gravity, but smaller for children's weight can not utilize gravity Decline is typically required adult and helps to decline adjustment posture, in this way using very inconvenient.

Therefore, it is necessary to propose a kind of multifunction chair with pallet and back-rest means for chair in response to the above problems.

Utility model content

In view of the above-mentioned deficiencies in the prior art, there is pallet the purpose of this utility model is to provide one kind and leans on The multifunction chair for carrying on the back device, can solve the above problem.

A kind of multifunction chair with pallet and back-rest means for chair, including back bracket, pallet, pallet lift mechanism and back By mobile regulating mechanism, described to lean against mobile regulating mechanism and be fixed on the pallet, the back bracket is movably connected on institute It states and leans against mobile regulating mechanism, the pallet lift mechanism is fixed on the lower part of pallet, and the pallet lift mechanism includes fixing Support outer tube, conduit, support tube, screw, worm screw, turbine, wind, joystick and the first screw rod, the lower part of the support tube It is fixed on the interior bottom of the fixed support outer tube, the screw is fixed on the top of the support tube, first screw rod Lower part is threadedly coupled with screw and is inserted into support tube, and the sheathed catheter, which is mounted in the outside of the support tube and slides with screw, to be connected It connects, the turbine is fixed on the top of first screw rod, and the worm screw is fixed on the joystick, and the wind is fixed on The joystick, the worm screw engage connection with turbine；

The back bracket includes upper support frame, lower bracing frame and angle rotation regulating mechanism, and the upper support frame passes through Lower angle rotation regulating mechanism connects lower bracing frame；

The lower bracing frame is provided with adjustable plate, and described to lean against mobile regulating mechanism include regulation handle, the second bar, first Bevel gear and the second bevel gear, first bevel gear are fixed on the regulation handle, and second bevel gear is fixed on described One end of second screw rod, first bevel gear are engaged with the second bevel gear, another bar portion and adjustable plate of second screw rod It is threadedly coupled.

Further, the outer cover of the conduit is moved equipped with mobile outer tube, the top of first screw rod and decoration is decorated It is provided with bearing holder (housing, cover) between dynamic outer tube, bearing is provided in the bearing holder (housing, cover), the top for decorating mobile outer tube passes through screw rod The pallet is fixed in connection.

Further, the joystick is provided with support plate, and the top of the turbine is provided with turbine protective cover plate and consolidates Due to the support plate.

Further, the outside of first bevel gear and the second bevel gear is enclosed with guard shield.

Further, the angle rotation regulating mechanism includes upper support external disk, lower support external disk, torsional spring, the first clutch Outside toothed disc, the second clutch tooth wheel disc, central axis, angle rotating handle and compression spring, the upper support external disk and lower support Disk rotation connection, the one end of the central axis through the upper support external disk and lower support external disk center, it is described in The angle rotating handle is fixed in the other end of mandrel, and the torsional spring is embedded in support external disk and lower support external disk.

Preferably, it is interior and axial with the upper support external disk to be set to the upper support external disk for the first clutch tooth wheel disc It being slidably connected, the second clutch tooth wheel disc is set in the lower support external disk and is in axial sliding connection with lower support external disk, The outside of the compression spring suit central axis is simultaneously clamped between the first clutch tooth wheel disc and the second clutch tooth wheel disc, the first tooth Wheel disc and the locking of second gear disk are cooperatively connected.

Further, the upper support frame, the side of the lower support external disk are fixed in the side of the upper support external disk It is fixed on the lower bracing frame.

Further, the end face of the upper support external disk and lower support external disk is provided with cover board.

Further, the upper support frame is set with sensor mount, and the sensor mount is equipped with pressure biography Sensor is provided with alarm on the pallet, and the alarm is electrically connected to the pressure sensor.

Compared with prior art, the utility model has the beneficial effects that the angled rotation regulating mechanism of utility model setting, Pallet lift mechanism leans against mobile regulating mechanism, pressure sensor and alarm, and pallet lift mechanism makes pallet realize lifting Movement, leaning against mobile regulating mechanism can realize that transverse shifting, angle rotation regulating mechanism can realize angle, pressure sensor and report Alert device can play alarm function, have up and down, the Multifunctional effects such as lateral, rotation and alarm；

The wind of pallet lift mechanism drives worm screw rotation, and worm screw drives turbine rotation, and turbine passes through bearing and screw rod It is coupled and the first screw rod is driven to rotate, relative motion between the first screw rod and screw, and adjusting tray moves up and down, and realizes lifting Function；

The regulation handle rotation for leaning against mobile regulating mechanism drives the first bevel gear, and the first bevel gear passes through the second umbrella of engagement Gear drives the rotation of the second screw rod, and the rotation of the second screw rod drives adjustable plate mobile, and then back bracket is driven to move forward and backward；

The angle rotating handle of angle rotation regulating mechanism rotates the angle between adjustable upper support frame and lower bracing frame；

Pressure sensor can sense the variation of pressure, and when children are sitting on chair, pressure sensor is non-inductive to arrive pressure When, alarm starts to alarm, and notifies adult.

Detailed description of the invention

Fig. 1 is the structure chart of the multifunction chair provided by the utility model with pallet and back-rest means for chair；

Fig. 2 is the main view of the multifunction chair provided by the utility model with pallet and back-rest means for chair；

Fig. 3 is the left view of the multifunction chair provided by the utility model with pallet and back-rest means for chair；

Fig. 4 is the top view of the multifunction chair provided by the utility model with pallet and back-rest means for chair；

Fig. 5 is the local expansion figure of Fig. 1；

Fig. 6 is the Section A-A schematic diagram of Fig. 3；

Fig. 7 is the section B-B schematic diagram of Fig. 2；

Fig. 8 is the pallet lift mechanism expanded schematic diagram of the utility model；

Fig. 9 and Figure 10 is the angle rotation regulating mechanism expanded schematic diagram of the utility model；

Figure 11 to Figure 13 is that the back bracket of the multifunction chair with pallet and back-rest means for chair of the utility model is adjusted Schematic diagram.

Appended drawing reference in figure: 1, pallet lift mechanism；101, fixed support outer tube；102, conduit；103, support tube；104, Screw；105, the first screw rod；106, turbine；107, mobile outer tube is decorated；108, bearing；109, bearing holder (housing, cover)；110, worm screw；111, Joystick；112, wind；2, pallet；201, support plate；202, turbine protective cover plate；3, back bracket；4, mobile tune is leaned against Save mechanism；401, regulation handle；402, the first bevel gear；403, the second bevel gear；404, the second screw rod；5, lower bracing frame； 501, adjustable plate；6, upper support frame；7, angle rotation regulating mechanism；701, angle rotating handle；702, cover board；703, lower support External disk；704, the first clutch tooth wheel disc；705, compression spring；706, torsional spring；707, the second clutch tooth wheel disc；708, outside upper support Disk；709, central axis；8, sensor mount.

Specific embodiment

It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can To be combined with each other.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result, Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another It is described, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition State the concrete meaning of term in the present invention.

The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be by right It is required that the multitude of different ways for limiting and covering is implemented.

Such as Fig. 1 and as shown in connection with fig. 2, a kind of multifunction chair with pallet and back-rest means for chair, including back bracket 3, Pallet 2, pallet lift mechanism 1 and mobile regulating mechanism 4 is leaned against, it is described to lean against mobile regulating mechanism 4 and be fixed on the pallet 2 On, the back bracket 3 be movably connected on it is described lean against mobile regulating mechanism 4, the pallet lift mechanism 1 is fixed on pallet 2 Lower part, the pallet lift mechanism 1 includes fixed support outer tube 101, conduit 102, support tube 103, screw 104, worm screw 110, turbine 106, wind 112, joystick 111 and the first screw rod 105, the lower part of the support tube 103 are fixed on described solid Surely the interior bottom of outer tube 101 is supported, the screw 104 is fixed on the top of the support tube 103, first screw rod 105 Lower part is threadedly coupled with screw 104 and is inserted into support tube 103, and the conduit 102 is sleeved on the outside of the support tube 103 simultaneously It is slidably connected with screw 104, the turbine 106 is fixed on the top of first screw rod 105, and the worm screw 110 is fixed on institute Joystick 111 is stated, the wind 112 is fixed on the joystick 111, and the worm screw 110 engages connection with turbine 106；Institute Stating back bracket 3 includes upper support frame 6, lower bracing frame 5 and angle rotation regulating mechanism 7, and the upper support frame 6 passes through lower angle Rotation regulating mechanism 7 is rotationally connected with the lower bracing frame 5；The lower bracing frame 5 is provided with adjustable plate 501, described to lean against shifting Dynamic regulating mechanism 4 includes regulation handle 401, the second screw rod 404, the first bevel gear 402 and the second bevel gear 403, and described first Bevel gear 402 is fixed on the regulation handle 401, and second bevel gear 403 is fixed on one end of second screw rod 404, First bevel gear 402 is engaged with the second bevel gear 403, another bar portion and 501 screw thread of adjustable plate of second screw rod 404 Connection.

Preferably, the outer cover of the conduit 102 is equipped with decorating mobile outer tube 107, the top of first screw rod 105 with It decorates between mobile outer tube 107 and is provided with bearing holder (housing, cover) 109, bearing 108, the decoration movement are provided in the bearing holder (housing, cover) 109 The pallet 2 is fixed on the top of outer tube 107.

Using preferably technical solution the utility model has the advantages that bearing 108 plays connection turning effort.

Preferably, the joystick 111 is provided with support plate 201, and the top of the turbine 106 is provided with turbine protective cover Plate 202 is simultaneously fixed on the support plate 201, and it is outer that the outside of first bevel gear 402 and the second bevel gear 403 is enclosed with protection Shell 405.

Using preferably technical solution the utility model has the advantages that support plate 201 is played a supporting role, turbine protective cover plate 202, protection Shell 405 plays the role of protection.

Preferably, the angle rotation regulating mechanism 7 include upper support external disk 708, lower support external disk 703, torsional spring 706, First clutch tooth wheel disc 704, the second clutch tooth wheel disc 707, central axis 709, angle rotating handle 701 and compression spring 705, institute State support external disk 708 and the rotation connection of lower support external disk 703, the one end of the central axis 709 is through upper support external disk 708 and it is lower support external disk 703 center, the angle rotating handle is fixed in the other end of the central axis 703 701, the torsional spring 705 is embedded in support external disk 708 and lower support external disk 703, and the first clutch tooth wheel disc 704 is set to It is in axial sliding connection in the upper support external disk 708 and with the upper support external disk 708, the second clutch tooth wheel disc 707 is set It is placed in the lower support external disk 703 and is in axial sliding connection with lower support external disk 703, the compression spring 705 is set with center The outside of axis 709 is simultaneously clamped between the first clutch tooth wheel disc 704 and the second clutch tooth wheel disc 707, the first clutch tooth wheel disc 704 It locks and is cooperatively connected with the second clutch tooth wheel disc 707.

Using preferably technical solution the utility model has the advantages that upper support frame 6 is adjusted under in 701 triple turn of angle rotating handle Angle between support frame 5, the first clutch tooth wheel disc 704 and the locking cooperation of the second clutch tooth wheel disc 707, torsional spring 706 are upper support External disk 708, lower support external disk 703 provide torsional forces, and compression spring 705 can make the first clutch tooth wheel disc 704 and the second clutch tooth The separation of wheel disc 707 and cooperation adjust angle convenient for angle rotating handle 701.

Preferably, the upper support frame 6 is fixed in the side of the upper support external disk 708, the lower support external disk 703 The lower bracing frame 5 is fixed in side.

Using preferably technical solution the utility model has the advantages that the rotation of upper support external disk 708 and then turning for drive upper support frame 6 It is dynamic, the rotation of lower support external disk 703 and then the rotation for driving lower bracing frame 5.

Preferably, the end face of the upper support external disk 708 and lower support external disk 703 is provided with cover board 702.

Using preferably technical solution the utility model has the advantages that cover board 702 plays protective action.

Preferably, the upper support frame 6 is set with sensor mount 8, and the sensor mount 8 is equipped with pressure biography Sensor is provided with alarm on the pallet 2, and the alarm is electrically connected to the pressure sensor.

Using preferably technical solution the utility model has the advantages that pressure sensor can sense the variation of pressure, when children are sitting in chair On son, pressure sensor it is non-inductive to pressure when, alarm starts to alarm, and notifies adult.

The utility model feature:

1, utility model is arranged angled rotation regulating mechanism 7, pallet lift mechanism 1, leans against mobile regulating mechanism 4, pressure Force snesor and alarm, pallet lift mechanism 1 make pallet realize elevating movement, and cross can be realized by leaning against mobile regulating mechanism 4 To movement, angle rotation regulating mechanism 7 can realize angle, and pressure sensor and alarm can play alarm function, have up and down, Laterally, the Multifunctional effects such as rotation and alarm.

2, mechanical transmission, can be self-locking by tray position using turbine 106 and worm screw 110, not gas bar explosion safety Problem is operated very easily due to worm gear 106 and 110 engagement system of worm screw；Convenient for upgrading electric structure mode later；Support Disk elevating mechanism 1 uses link joint, can dismantle, convenient for packaging, 1 outer dimension of pallet lift mechanism and general gas bar one Sample can be coupled with many five-pointed star foot props.

3, back bracket 3 is foldable, and adjustable posture seating angle, and packaging volume reduces much, and user hardly needs Oneself carrying easy to assembly, back bracket 3 is using the first bevel gear 402, the second bevel gear 403 and the second screw rod 404, for adjusting Whole backrest front-rear position, can allow student voluntarily to adjust, and improve child's manipulative ability and self judgment proper height.

4, it is adjusted with very humanized sitting posture, is suitble to the crowd at 5-20 years old age, by extensive suitable crowd Test, effect is obvious, and sitting posture of student restitution factor can be also used for computer chair and office chair up to 90% or more, widely used, prospect It is good.

Use step:

When lift adjustment: wind 112 drives worm screw 110 to rotate, and worm screw 110 drives turbine 106 to rotate, and turbine 106 is logical It crosses and drives the rotation of the first screw rod 105, threads turn between the first screw rod 105 and screw 104 carries out so that moving down on the first screw rod It is dynamic, and adjusting tray 2 moves up and down, and realizes elevating function；Screw 104 only moves up and down with conduit 102, cannot do rotation fortune It is dynamic.

When lateral adjustments: the rotation of regulation handle 401 drives the first bevel gear 402, and the first bevel gear 402 passes through engagement second Bevel gear 403 drives the rotation of the second screw rod 404, and the rotation of the second screw rod 404 drives adjustable plate 501 mobile, and then drives backrest branch Frame 3 moves forward and backward.

When angular adjustment: 701 triple turn of angle rotating handle, under the action of compression spring 705, so that the first clutch Toothed disc 704 and the separation of the second clutch tooth wheel disc 707, can be rotated, in turn between upper support external disk 708 and lower support external disk 703 Adjust the angle between upper support frame 6 and lower bracing frame 5, when adjusting to proper angle, unclamp angle rotating handle 701, first from Toothed disc 704 and the locking cooperation of the second clutch tooth wheel disc 707 are closed, a certain angle is fixed between upper support frame 6 and lower bracing frame 5.

When children be sitting in write on chair learn when, pressure sensor it is non-inductive to pressure when, alarm starts to alarm, and leads to Know adult.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, Equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, is directly or indirectly transported Used in other related technical areas, it is also included in the patent protection scope of the utility model.

Claims (9)

1. a kind of multifunction chair with pallet and back-rest means for chair, it is characterised in that: including back bracket (3), pallet (2), It pallet lift mechanism (1) and leans against mobile regulating mechanism (4), the mobile regulating mechanism (4) that leans against is fixed on the pallet (2) On, the back bracket (3) be movably connected on it is described lean against mobile regulating mechanism (4), the pallet lift mechanism (1) is fixed on The lower part of the pallet (2), the pallet lift mechanism (1) include fixed support outer tube (101), conduit (102), support tube (103), screw (104), worm screw (110), turbine (106), wind (112), joystick (111) and the first screw rod (105), institute The interior bottom of fixed support outer tube (101) is fixed in the lower part for stating support tube (103), and the screw (104) is fixed on institute The top of support tube (103) is stated, the lower part of first screw rod (105) is threadedly coupled with the screw (104) and is inserted into described In support tube (103), the conduit (102), which is sleeved on the outside of the support tube (103) and slides with the screw (104), to be connected It connects, the turbine (106) is fixed on the top of first screw rod (105), and the worm screw (110) is fixed on the joystick (111), the wind (112) is fixed on the joystick (111), and the worm screw (110) is engaged with the turbine (106)；

The back bracket (3) includes upper support frame (6), lower bracing frame (5) and angle rotation regulating mechanism (7), the upper branch Support (6) is rotationally connected with the lower bracing frame (5) by the angle rotation regulating mechanism (7)；

The lower bracing frame (5) is provided with adjustable plate (501), and the mobile regulating mechanism (4) that leans against includes regulation handle (401), the second screw rod (404), the first bevel gear (402) and the second bevel gear (403), first bevel gear (402) are fixed In the regulation handle (401), second bevel gear (403) is fixed on one end of second screw rod (404), and described first Bevel gear (402) is engaged with the second bevel gear (403), another bar portion of second screw rod (404) and the adjustable plate (501) Threads turn connection.

2. a kind of multifunction chair with pallet and back-rest means for chair as described in claim 1, it is characterised in that: the conduit (102) for outer cover equipped with decorating mobile outer tube (107), the top of first screw rod (105) and decoration are mobile outer tube (107) Between be provided with bearing holder (housing, cover) (109), is provided with bearing (108) in the bearing holder (housing, cover) (109), the decoration moves outer tube (107) Top be fixed on the pallet (2).

3. a kind of multifunction chair with pallet and back-rest means for chair as described in claim 1, it is characterised in that: described hand Bar (111) is provided with support plate (201), and the top of the turbine (106) is provided with turbine protective cover plate (202), and is fixed on The support plate (201).

4. a kind of multifunction chair with pallet and back-rest means for chair as described in claim 1, it is characterised in that: described first The outside of bevel gear (402) and the second bevel gear (403) is enclosed with guard shield (405).

5. a kind of multifunction chair with pallet and back-rest means for chair as described in claim 1, it is characterised in that: the angle Rotation regulating mechanism (7) includes upper support external disk (708), lower support external disk (703), torsional spring (706), the first clutch tooth wheel disc (704), the second clutch tooth wheel disc (707), central axis (709), angle rotating handle (701) and compression spring (705), it is described on Support external disk (708) and the lower support external disk (703) rotation connection, the one end of the central axis (709) is through described Upper support external disk (708) and lower support external disk (703) center, the other end of the central axis (709) is fixed on The angle rotating handle (701), the torsional spring (706) are embedded in the upper support external disk (708) and the lower support external disk (703) in.

6. a kind of multifunction chair with pallet and back-rest means for chair as claimed in claim 5, it is characterised in that: described first Clutch tooth wheel disc (704) be set in the upper support external disk (708) and with upper support external disk (708) company of sliding axially It connects, it is interior and axial with lower support external disk (703) that the second clutch tooth wheel disc (707) is set to the lower support external disk (703) It is slidably connected, the outside of compression spring (705) suit central axis (709) is simultaneously clamped in the first clutch tooth wheel disc (704) between the second clutch tooth wheel disc (707), the first clutch tooth wheel disc (704) and the second clutch tooth wheel disc (707) are locked Tight fit connection.

7. a kind of multifunction chair with pallet and back-rest means for chair as claimed in claim 6, it is characterised in that: the upper branch Support external disk (708) side be fixed on the upper support frame (6), it is described it is lower support external disk (703) side be fixed on it is described under Support frame (5).

8. a kind of multifunction chair with pallet and back-rest means for chair as claimed in claim 6, it is characterised in that: the upper branch The end face of support external disk (708) and lower support external disk (703) is provided with cover board (702).

9. a kind of multifunction chair with pallet and back-rest means for chair as described in claim 1, it is characterised in that: the upper branch Support (6) is set with sensor mount (8), and the sensor mount (8) is equipped with pressure sensor, the pallet (2) On be provided with alarm, the alarm is electrically connected to the pressure sensor.