Massage sofa capable of being switched into massage bed form

Abstract

The utility model discloses a massage sofa capable of being switched into a massage bed form, which comprises a base and a chair frame, the chair frame comprises a chair frame main body, a backrest frame rotationally connected with the chair frame main body and a leg bracket, and the chair frame comprises a transmission mechanism connected with the backrest frame and the leg bracket. The transmission mechanism is used for being linked with the leg bracket to overturn upwards when the backrest frame overturns backwards and being linked with the leg bracket to overturn downwards when the backrest frame overturns forwards, and the chair frame is connected with a first driving mechanism used for driving the backrest frame to overturn forwards and backwards; the chair frame body and the base are arranged to form sliding connection fit in the front-back direction, and a second driving mechanism used for driving the chair frame body to slide front and back relative to the base is connected between the chair frame body and the base. The utility model provides the massage sofa capable of being switched into the massage bed form, and the occupied rear space is small when the massage sofa is switched into the massage bed form.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of massage sofa that can be switched into massage bed form. BACKGROUND

[0002] At present, some existing massage sofa (massage sofa chair) products with massage bed form switching function, when being switched into massage bed form, backrest needs to be turned back, leg support needs to be turned up and raised, which has certain requirement to the space behind massage sofa, if the rear space is insufficient, backrest will collide with rear object in the process of turning over, not only can cause damage to object and sofa, but also will affect the normal switching of massage bed form, consumer needs to reserve enough space behind massage sofa when placing massage sofa in room, which brings many inconvenience to consumer's use and home arrangement. SUMMARY

[0003] In order to overcome the defects of the above-mentioned prior art, the utility model provides a massage sofa, which can be switched into massage bed form and occupies less space behind when being switched into massage bed form.

[0004] The massage sofa that can be switched into massage bed form of the utility model, including base, chair frame, the chair frame includes chair frame main body, backrest frame and leg support frame connected with chair frame main body, the chair frame includes transmission mechanism connected with backrest frame and leg support frame, the transmission mechanism is used for linkage leg support frame to turn over when backrest frame turns over, in turn can change massage sofa into massage bed state and linkage leg support frame to turn over when backrest frame turns over, in turn can change massage sofa back to initial state, the chair frame is connected with first drive mechanism for driving backrest frame to turn over, the setting of transmission mechanism makes that through one first drive mechanism can simultaneously linkage backrest frame and leg support frame turn over, can reduce cost;The chair frame main body and base are arranged to constitute sliding connection cooperation along front-back direction, second drive mechanism for driving chair frame main body to slide forward and backward relative to base is connected between chair frame main body and base, backrest frame is driven to move forward as a whole by second drive mechanism while turning over back, so as to reduce the occupation of space behind massage sofa.

[0005] Further, the transmission mechanism comprises two first rollers arranged at the lower end of the backrest frame, a sliding support arranged on the chair frame body in an oblique sliding manner, and two second rollers arranged at the front end of the sliding support, the rear end of the sliding support comprises two vertical rods, the two first rollers can roll vertically along the two vertical rods with the turning movement of the backrest frame, the two second rollers at the front end of the sliding support and the rear end of the leg support frame constitute a rolling fit, when the backrest frame turns backward, the lower end of the backrest frame rotates forward, the sliding support moves obliquely forward by the second rollers, and the leg support frame turns upward by the second rollers; when the backrest frame turns forward, the lower end of the backrest frame rotates backward, the first rollers move backward, the leg support frame turns downward under the action of gravity and moves the sliding support backward, so that the vertical rods at the rear end of the sliding support always abut against the first rollers.

[0006] Further, the chair frame body comprises two groups of vertical support rods arranged symmetrically on both sides, each group of vertical support rods comprises at least two vertical support rods, and the inner side of each vertical support rod is provided with a sliding sleeve, the sliding support comprises an inclined rod connected to the front end of the two vertical rods, and the two inclined rods are in sliding fit with the sliding sleeves on both sides of the chair frame body, so that the sliding support can only move forward and backward in an oblique direction.

[0007] Further, the first driving mechanism is a first flat push type electric push rod, which comprises an actuator, a guide rail, and a sliding block driven to move along the guide rail, the actuator of the first flat push type electric push rod is connected to the rear end of the guide rail, the actuator of the first flat push type electric push rod is pivotally connected to the chair frame body, the sliding block is pivotally connected to the lower end of the backrest frame, the first flat push type electric push rod can drive the sliding block to move along the guide rail when working, thereby driving the backrest frame to turn, and the leg support frame can be driven to turn by the transmission mechanism when the backrest frame turns.

[0008] Further, the second driving mechanism comprises two first gear racks fixedly installed on the base and arranged in parallel and at intervals, two second gear racks fixedly installed on the chair frame body and arranged above the two first gear racks in correspondence, and a second flat push type electric push rod, the second flat push type electric push rod comprising an actuator, a guide rail, a sliding block driven to move along the guide rail, support shafts arranged on two sides of the sliding block, gear wheels connected to two ends of the support shafts and rotatable relative to the sliding block, and two gear wheels engaged with the two groups of first gear racks and second gear racks arranged in correspondence respectively, the support shafts on the two sides of the sliding block being either the same support shaft or one support shaft arranged on each of the two sides of the sliding block, when the sliding block is driven to move forward or backward along the guide rail, the gear wheels are driven to rotate through cooperation with the first gear racks, and the chair frame is driven to move forward or backward as a whole through cooperation of the gear wheels with the second gear racks when the gear wheels are displaced and rotated. In this way, when the gear wheels are driven to move forward or backward by a distance L relative to the base, the chair frame is driven to move forward or backward by twice the distance L, the stroke is amplified, the requirement on the running stroke of the second flat push type electric push rod is reduced, and the requirement on the internal space of the massage sofa is also reduced.

[0009] Further, the actuator of the second flat push type electric push rod is connected to the rear end of the guide rail, and the actuator is connected to the chair frame body, so that the connection structure is simple and the operation is reliable.

[0010] Further, the two sides of the base comprise guide grooves arranged in parallel, and the two sides of the chair frame body comprise guide wheels guided to move in cooperation with the guide grooves, and the two sides of the front end of the chair frame body are provided with third rollers in contact with the ground, so that the stability of the chair frame during forward and backward movement is ensured and the shaking is reduced.

[0011] The massage sofa has the advantages that: the massage sofa has a simple structure, the backrest frame and the leg support frame can be linked to be flipped, the chair frame as a whole can be translated forward when the massage sofa is switched to the massage bed state, the space behind the massage sofa can be occupied, and the indoor space can be occupied. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural view of an embodiment of the massage sofa;

[0013] Figure 2 is a sectional view of an embodiment of the massage sofa;

[0014] Figure 3 is a structural view of a base of an embodiment of the massage sofa;

[0015] Figure 4 is a structural view of a chair frame of an embodiment of the massage sofa Figure 1 ;

[0016] Figure 5The utility model discloses an embodiment chair frame structure Figure 2 ;

[0017] Figure 6 The utility model discloses an embodiment internal structure schematic view

[0018] Figure 7 The utility model discloses an embodiment chair frame sectional view

[0019] Figure 8 The utility model discloses an embodiment first drive mechanism and second drive mechanism assembly schematic view. DETAILED DESCRIPTION

[0020] The utility model discloses an embodiment massage sofa's structure that can switch into massage bed modality as Figures 1-8 Shown, including base 1, chair frame 2, chair frame 2 includes chair frame main body 21, and the backrest frame 22 of chair frame main body 21 rotation connection, leg support frame 23, chair frame 2 includes with the transmission mechanism of backrest frame 22 and leg support frame 23 is connected, transmission mechanism is used for when backrest frame 22 is backward overturned and links leg support frame 23 and turns over upwards, further can the state of massage sofa is switched into massage bed and when backrest frame 22 is forward overturned and links leg support frame 23 and turns over downwards, further can the initial state of massage sofa is switched back, chair frame 2 is connected for driving the first drive mechanism of backrest frame 22 forward and backward overturning movement, transmission mechanism's setting makes through a first drive mechanism can simultaneously link backrest frame 22 and leg support frame 23 and turn over, need not two independent drive mechanisms to drive backrest frame 22, leg support frame 23 and turn over respectively, can thus reduce cost, chair frame main body 21 and base 1 set up constitute along the sliding connection cooperation of front and back direction, and chair frame main body 21 and base 1 are connected for driving the second drive mechanism of chair frame main body 21 relative base 1 and slide forward and backward, backrest frame 22 is backward overturned at the same time through the second drive mechanism and drives chair frame 2 whole advance, to thereby can reduce the occupation of massage sofa rear space, through the existing circuit or program design makes that first drive mechanism and second drive mechanism can link together.

[0021] The transmission mechanism comprises two first rollers 31 arranged at the lower end of the backrest frame 22, a sliding support 32 arranged obliquely on the chair frame body 21, two second rollers 33 arranged at the front end of the sliding support 32, and two vertical rods 321 arranged at the rear end of the sliding support 32, and an inclined rod 322 connected to the front end of the two vertical rods 321. The two first rollers 31 can roll vertically along the two vertical rods 321 with the turning movement of the backrest frame 22. The two second rollers 33 at the front end of the sliding support 32 and the rear end of the leg support frame 23 form a rolling fit. When the backrest frame 22 is turned backward, the lower end of the backrest frame 22 is turned forward, the sliding support 32 is pushed to move obliquely forward by the second rollers 33, and the leg support frame 23 is pushed to turn upward by the second rollers 33. When the backrest frame 22 is turned forward, the lower end of the backrest frame 22 is turned backward, the first rollers 31 move backward, the leg support frame 23 turns downward under the action of gravity and pushes the sliding support 32 to move backward, so that the vertical rods 321 at the rear end of the sliding support 32 always abut against the first rollers 31.

[0022] The chair frame body 21 comprises two groups of vertical support rods 211 arranged symmetrically on both sides, each group of vertical support rods 211 comprises at least two vertical support rods 211, and the inner side of each vertical support rod 211 is provided with a sliding sleeve 212. The two inclined rods 322 are in sliding fit with the sliding sleeves 212 on both sides of the chair frame body 21, so that the sliding support 32 can only move forward and backward in an oblique direction.

[0023] The first drive mechanism is a first flat push type electric push rod, which comprises an actuator 41, a guide rail 42, a sliding block 43 driven to move along the guide rail 42, and a hinge seat 44 pivotally connected to the sliding block 43. The actuator 41 of the first flat push type electric push rod is connected to the rear end of the guide rail 42. The actuator 41 drives the sliding block 43 to move along the guide rail by means of a screw nut arranged on the inner side of the guide rail 42. The actuator 41 of the first flat push type electric push rod is pivotally connected to the chair frame body 21. The sliding block 43 is pivotally connected to the lower end of the backrest frame 22 through the hinge seat 44. When the first flat push type electric push rod works, it can drive the sliding block 43 to move along the guide rail 42, thereby driving the backrest frame 22 to realize turning movement. When the backrest frame 22 turns, the leg support frame 23 can be driven to turn by the transmission mechanism.

[0024] The second driving mechanism comprises two first gear racks 51 fixedly installed on the base 1, two second gear racks 52 fixedly installed on the chair frame body 21 and correspondingly arranged above the two first gear racks 51, and a second flat push type electric push rod, which comprises an actuator 531, a guide rail 532, a sliding block 533 driven to move along the guide rail 532, support shafts 534 arranged on two sides of the sliding block 533, gear wheels 535 connected to two ends of the support shafts 534 and rotatable relative to the sliding block 533, and two groups of first gear racks 51 and second gear racks 52 correspondingly arranged and engaged with the two gear wheels 535. In the embodiment, the support shafts 534 on the two sides of the sliding block 533 are the same support shaft 534, and in other embodiments, one support shaft 534 can be arranged on each of the two sides of the sliding block 533. When the sliding block 533 is driven to move forward or backward along the guide rail 532, the gear wheels 535 are driven to rotate through cooperation with the first gear racks 51, and the chair frame 2 is driven to move forward or backward as a whole through cooperation of the gear wheels 535 with the second gear racks 52 when the gear wheels 535 are displaced and rotated. In this way, when the gear wheels 535 are driven to move forward or backward by a distance L relative to the base 1, the chair frame 2 is driven to move forward or backward by twice the distance L, the stroke is amplified, the requirement for the running stroke of the second flat push type electric push rod is reduced, and the requirement for the internal space of the massage sofa is also reduced. The actuator 531 of the second flat push type electric push rod is connected to the rear end of the guide rail 532, and the actuator 531 is connected to the chair frame body 21, so that the connection structure is simple and the operation is reliable.

[0025] The base 1 comprises parallel guide grooves 11 arranged on two sides thereof, and the chair frame body 21 comprises guide wheels 213 arranged on two sides thereof and guided to move in cooperation with the guide grooves 11. The chair frame body 21 comprises third rollers 214 arranged on two sides of the front end thereof and in contact with the ground, so that the stability of the chair frame 2 during forward and backward movement is ensured and the shaking is reduced.

[0026] The above embodiment is only one of the preferred embodiments of the present application, and the common changes and replacements made by those skilled in the art within the technical scheme of the present application are included in the protection scope of the present application.

Claims

1. A massage sofa capable of being switched into a massage bed mode, comprising a base and a chair frame, the chair frame comprising a chair frame main body, a backrest frame rotatably connected to the chair frame main body, and a leg support frame, characterized in that: The chair frame comprises a transmission mechanism connected with the backrest frame and the leg support frame, the transmission mechanism is used for linkage of the leg support frame upward turning over when the backrest frame turns over backward and linkage of the leg support frame downward turning over when the backrest frame turns over forward, the chair frame is connected with a first driving mechanism used for driving the backrest frame forward and backward turning over movement; the chair frame body and the base are provided to constitute a sliding connection cooperation in the front and back direction, the chair frame body and the base are connected with a second driving mechanism used for driving the chair frame body to slide forward and backward relative to the base; the second driving mechanism comprises two parallel and spaced first racks fixedly installed on the base, two second racks fixedly installed on the chair frame body and correspondingly arranged above the two first racks, and further comprises a second flat push type electric push rod, the second flat push type electric push rod comprises an executor, a guide rail, a sliding block driven to translate along the guide rail, support shafts arranged on both sides of the sliding block, gears connected with both ends of the support shafts, and two gears respectively engaged with the two groups of first racks and the second racks correspondingly arranged.

2. The massage sofa switchable into a massage bed form according to claim 1, characterized in that: The transmission mechanism comprises two first rollers arranged at the lower end of the backrest frame, a sliding support obliquely and slidably arranged on the chair frame body, and two second rollers arranged at the front end of the sliding support, the rear end of the sliding support comprises two vertical rods, the two first rollers can vertically roll along the two vertical rods with the turning over movement of the backrest frame, and the two second rollers at the front end of the sliding support and the rear end of the leg support frame constitute a rolling fit.

3. The massage sofa switchable into a massage bed form according to claim 2, characterized in that: The two sides of the chair frame body comprise two groups of symmetrically arranged vertical support rods, each group of vertical support rods comprises at least two vertical support rods, and the inner sides of the vertical support rods are provided with sliding sleeves, the sliding support comprises inclined rods connected to the front ends of the two vertical rods, and the two inclined rods are respectively in sliding fit with the sliding sleeves located on the two sides of the chair frame body.

4. The massage sofa switchable into a massage bed form according to claim 1, characterized in that: The first driving mechanism is a first flat push type electric push rod, the first flat push type electric push rod comprises an executor, a guide rail, and a sliding block driven to translate along the guide rail, the executor of the first flat push type electric push rod is connected to the rear end of the guide rail, the executor of the first flat push type electric push rod is pivotally connected with the chair frame body, and the sliding block is pivotally connected with the lower end of the backrest frame.

5. The massage sofa switchable into a massage bed form according to claim 1, characterized in that: The executor of the second flat push type electric push rod is connected to the rear end of the guide rail, and the executor is connected with the chair frame body.

6. The massage sofa switchable into a massage bed form according to claim 1, characterized in that: The two sides of the base comprise parallel arranged guide grooves, the two sides of the chair frame body comprise guide wheels in guiding movement fit with the guide grooves, and the front end of the chair frame body is provided with third rollers in fit contact with the ground.

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