CN212591188U - Comfortable chair support with zero gravity adjusting function - Google Patents

Abstract

The utility model relates to the technical field of comfortable chairs, in particular to a comfortable chair support with zero gravity adjusting function, which comprises a framework, a base, a turnover mechanism and a telescopic driving element, wherein the turnover mechanism and the telescopic driving element are movably connected between the base and the framework, the turnover mechanism comprises a fixed plate at the top of the base and a turnover plate arranged at the bottom of the framework, the left side and the right side of the fixed plate are provided with vertical plates extending upwards, the left side and the right side of the turnover plate are provided with connecting plates extending downwards, the distance between the two connecting plates is larger than the distance between the two vertical plates, the connecting plates are arranged at the outer sides of the vertical plates, the connecting plates are provided with connecting bolts movably connected with the vertical plates, the tail ends of the telescopic driving element are movably connected with the fixed plate, the output end of the telescopic driving element is connected with the bottom of the framework, the outer walls of, the zero gravity adjustment is safe and reliable, and has the advantages of long service life, simple structure and low cost.

Description

Comfortable chair support with zero gravity adjusting function

Technical Field

The utility model relates to a comfortable chair technical field, concretely relates to comfortable chair support with zero gravity regulatory function.

Background

The comfortable chair is a chair with multiple functions and can bring relaxation feeling and comfortable feeling to human body. Currently, the main adjusting functions of a comfortable chair include backrest inclination adjustment, headrest angle adjustment, leg rest (or pedal) angle adjustment, and the like. The comfortable chair also has another function, namely a zero gravity adjusting function, wherein the zero gravity adjusting function is that the human body is in a non-stressed state by adjusting the whole angle of the comfortable chair, and under the zero gravity adjusting state, the human body is similar to a suspended state on the comfortable chair, and the non-stressed state ensures that the comfortable chair has a better comfortable chair, and the function can effectively improve the comfort level and the use performance of the comfortable chair. The realization of this function mainly relies on the adjustment of comfortable chair skeleton, and the whole angle of skeleton can overturn the adjustment, only possesses this function on higher-end chair generally, and the structure is complicated, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to above-mentioned defect, provide the comfortable chair support that has zero gravity regulatory function, have nimble zero gravity regulatory function, zero gravity adjusts safe and reliable, has longer life, simple structure, and the cost is lower.

The utility model provides a technical scheme that its technical problem adopted as follows:

a comfortable chair support with zero gravity adjusting function comprises a framework of a comfortable chair and a base at the bottom of the framework, wherein a turnover mechanism and a telescopic driving element which are movably connected are arranged between the base and the framework, the turnover mechanism comprises a fixed plate at the top of the base and a turnover plate arranged at the bottom of the framework, vertical plates which extend upwards are arranged at the left side and the right side of the fixed plate, connecting plates which extend downwards are arranged at the left side and the right side of the turnover plate, the distance between the two connecting plates is larger than the distance between the two vertical plates, the connecting plates are positioned at the outer sides of the vertical plates, connecting bolts which extend towards the inner sides of the vertical plates and are movably connected with the vertical plates are arranged on the connecting plates, the connecting bolts realize the movable connection between the turnover plates and the fixed plate, the tail end of the telescopic driving element is movably connected with the, the vertical plate is provided with a sleeve matched with the connecting bolt at a corresponding position, the outer wall of the vertical plate is provided with a limiting column, the connecting plate is provided with an arc-shaped limiting hole matched with the limiting column at a corresponding position, the limiting column is in contact with the end part of the limiting hole to limit the zero gravity adjusting range of the framework, the width of the bottom of the vertical plate is larger than the width of the upper part of the vertical plate, the rear side of the vertical plate is an inclined plane, and after the turnover plate is turned over at the maximum angle, the upper part of the rear side of the turnover plate.

Further, connecting bolt correspond connecting plate department and be equipped with the location boss, location boss surface is equipped with and makes connecting bolt and returning face plate keep synchronous pivoted location structure, the connecting plate corresponds the department be equipped with location boss complex locating hole, the bolt body of the connecting bolt in the location boss outside is equipped with spacing boss, spacing boss is spacing with the contact of connecting plate lateral surface, connecting bolt corresponds and is equipped with the adapter sleeve on the sheathed tube bolt body, the last sheathed tube inboard that corresponds of connecting bolt is equipped with the limiting plate, the last department of corresponding of connecting bolt is equipped with the connection platform with limiting plate interference fit, be equipped with fastening bolt on the connecting bolt body of the inboard connecting bolt of limiting plate.

Furthermore, the positioning boss is a hexagonal prism, the side surface of the positioning boss forms the positioning structure, and the outer diameter of the limiting boss is larger than that of the positioning boss.

Further, the connection platform be cylindric, be equipped with on the limiting plate with be connected platform complex hole, be equipped with on the connection platform and avoid limiting plate pivoted location keyway, the hole of limiting plate and the structure cooperation of being connected the platform.

Furthermore, the outer end face of the connecting bolt is provided with an inner hexagonal hole.

Furthermore, the number of the limiting columns is two, the number of the limiting holes is two, and the two limiting holes are concentric.

Furthermore, flexible drive element include electric putter, air spring, electric putter's end is articulated with the first arch of fixed plate front portion setting, and electric putter's output is articulated with the skeleton bottom and is connected, and the one end of air spring is articulated with the second arch of fixed plate front portion setting, and the other end of air spring is articulated with the skeleton bottom.

Furthermore, the gas spring is a tension gas spring.

Furthermore, the front part of the fixing plate is provided with a front plate, and the front plate is provided with a plurality of connecting holes.

Furthermore, the rear side of connecting plate be equipped with the convex bulge backward, the rear end face of the connecting plate of bulge top is the straight section in plane, the rear end face of the connecting plate of bulge department is the cambered surface section, passes through the circular arc transition between straight section and cambered surface section.

The utility model has the advantages that: by adopting the scheme, the turnover control of the framework by the telescopic driving element consisting of the electric push rod and the air spring is smoother, the electric push rod is effectively protected, the service life is prolonged, the stability and the safety of zero gravity adjustment of the framework are realized, the framework has flexible activity due to the combination of the limiting column and the limiting hole and the combination of the inclined plane and the turnover plate have double limiting effects on the zero gravity adjustment, the range of the zero gravity adjustment is effectively controlled, the stability and the safety after the zero gravity adjustment are improved, the use effect of the comfortable chair framework is improved, the service life is long, the assembly production is convenient, the integral structure is simple, the cost is lower, the production and the popularization are facilitated, the gravity center control of the turnover mechanism in the turnover is stable, and the integral gravity center of the comfortable chair support is always kept at the base, therefore, the gravity center of the comfortable chair is kept at the base during zero gravity adjustment, the comfortable chair cannot be overturned for transition or overturned backwards, and the safety during zero gravity adjustment is effectively improved.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a front view of an embodiment of the present invention.

Fig. 3 is a schematic view of an explosion structure of the turnover mechanism according to an embodiment of the present invention.

Fig. 4 is a top view of a fixing plate according to an embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of a connection bolt according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a connecting bolt according to an embodiment of the present invention.

Wherein: 1 is the skeleton, 2 is the base, 3 is the fixed plate, 31 is the riser, 311 is the inclined plane, 32 is first arch, 33 is the second arch, 34 is the sleeve pipe, 35 is the front bezel, 4 is the returning face plate, 41 is the connecting plate, 411 is the bulge, 42 is spacing hole, 5 is connecting bolt, 51 is spacing boss, 52 is the location boss, 53 is the adapter sleeve, 54 is the limiting plate, 6 is electric putter, 7 is the tension gas spring, 8 is spacing post.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Example 1: referring to fig. 1-3, a comfortable chair support with zero gravity adjusting function comprises a framework 1 of a comfortable chair and a base 2 at the bottom of the framework 1, wherein the base 2 is movably connected with the framework 1 through a turnover mechanism, a telescopic driving element for driving the framework 1 to turn over integrally to realize zero gravity adjustment is arranged at the bottom side of the framework 1, the turnover mechanism comprises a fixed plate 3 at the top of the base 2 and a turnover plate 4 arranged at the bottom of the framework 1, vertical plates 31 extending upwards are arranged at the left side and the right side of the fixed plate 3, the vertical plates 31 and the fixed plate 3 are of an integral structure, the vertical plates 31 are formed by bending plate bodies at two sides of the fixed plate 3 upwards, the fixed plate 3 is of a U-shaped structure, connecting plates 41 extending downwards are arranged at the left side and the right side of the turnover plate 4, the connecting plates 41 and the turnover plate 4 are of an integral structure, the, the distance between the two connecting plates 41 is greater than the distance between the two vertical plates 31, the connecting plates 41 are positioned on the outer sides of the vertical plates 31, so that the turnover plate 4 is of a matching structure which is reversely buckled on the outer side of the upper part of the fixed plate, the connecting plates 41 are provided with connecting bolts 5 which extend towards the inner sides of the vertical plates 31 and are movably connected with the vertical plates 31, the connecting bolts 5 realize the movable connection of the turnover plate 4 and the fixed plate 3, the telescopic driving element comprises an electric push rod 6 and a tension gas spring 7 which are arranged in parallel, the tail end of the electric push rod 6 is hinged with a first bulge 32 arranged on the front part of the fixed plate 3, the output end of the electric push rod 6 is hinged with the bottom of the front side of the framework 1, one end of the tension gas spring 7 is hinged with a second bulge 33 arranged on the front part of the fixed plate 3, the other end of the tension, realize zero gravity regulatory function, the tilting mechanism that fixed plate, returning face plate constitute guarantees the good clearance fit of skeleton and base, and in electric putter's the stroke of releasing, the skeleton can overturn different angles, realizes the zero gravity adjustment of different angles, improves comfortable chair support's result of use.

The electric push rod 6 extends to push the framework to turn over, the tension gas spring 7 is stretched, the tension gas spring 7 can generate reverse acting force for self-resetting after being stretched, the tension gas spring applies reverse acting force opposite to turning over to the framework 1, the tension force generated on the tension gas spring 7 plays a role in reducing the turnover speed of the framework and improving the smoothness of zero gravity adjustment in the process of framework turning over, the phenomenon that the electric push rod pushes the framework too violently is effectively avoided, smooth and stable adjustment control of zero gravity of the framework is realized, the electric push rod 6 resets and pulls the framework to reset, the action of the tension gas spring is positive acting force, the tension force on the tension gas spring pulls the framework to turn over downwards to reset, the electric push rod 6 is acted by force on the electric push rod in the process of pulling framework resetting, and the tension force on the set tension gas spring can reduce the stress on the electric push rod, play protection electric putter's effect, the atress on the electric putter is effectively reduced, and then the wearing and tearing of the electrode on the effectual electric putter that reduces, protection electric putter's motor, increase of service life.

Referring to fig. 4-6, a sleeve 34 rotatably engaged with the connecting bolt 5 is disposed at a corresponding position on the vertical plate 31, the connecting bolt 5 sequentially passes through the sleeves of the connecting plate 41 and the vertical plate 31 from the outside and is locked by a nut to realize the connection of the fixing plate and the turnover plate, a cylindrical limiting boss 51 is disposed at the end of the outer end of the connecting bolt, the inner end surface of the limiting boss 51 contacts with the outer wall of the connecting plate 41 to limit the outer end of the connecting bolt 5, a hexagonal positioning boss 52 is disposed at the inner side of the limiting boss 51, the center lines of the limiting boss 51 and the positioning boss 52 are collinear and coincident with the axial lead of the connecting bolt, a hexagonal positioning hole structurally engaged with the positioning boss 52 is disposed at a corresponding position on the connecting plate 41, the positioning boss and the positioning hole cooperate to lock the relative position of the connecting bolt and the connecting plate, so that the connecting bolt and the turnover plate rotate synchronously, the connecting sleeve 53 is sleeved on the connecting bolt and used for enhancing the matching of the connecting bolt and the sleeve, and importantly, the connecting sleeve 53 avoids the direct contact of the connecting bolt and the sleeve and avoids abrasion, the connecting sleeve can improve the accuracy of the rotatable matching of the connecting bolt and the sleeve, the axial jumping of the connecting bolt is effectively avoided, so that the connecting bolt is kept stable, the connecting bolt plays a role of a rotating shaft, the matching is tight, the matching accuracy and the matching gap in the radial direction can be effectively ensured, the part ensures the movable matching of the turnover plate and the fixed plate, the service life of the connecting bolt is prolonged, a limiting plate 54 is arranged on the connecting bolt 5 corresponding to the inner side of the sleeve 53, the limiting plate 54 is used for limiting the right end of the connecting bolt, the connecting position of the connecting bolt and the inner side of the sleeve is limited, the axial matching gap and the matching accuracy of the connecting bolt, the stability of the movable fit is improved, the axial jumping of the connecting bolt can be reduced, the connecting sleeve bears the stress of the connecting bolt, the overturning stress between the overturning plate and the fixing plate is concentrated at the matching position of the connecting sleeve and the sleeve, the connecting area is large, the precision is high, the load is effectively born, the anti-load capacity of the overturning plate is improved, a cylindrical connecting table matched with a limiting plate 54 is arranged at the corresponding position on the connecting bolt, a positioning key groove 55 for preventing the limiting plate from rotating at the connecting table is arranged on the circumferential surface of the connecting table, an inner hole which is in interference fit with the connecting table is arranged at the center of the limiting plate 54, the limiting plate 54 is in interference fit with the connecting table, the stability of the limiting plate on the connecting bolt is kept, the limiting plate is prevented from falling off, a boss structure extending to the outer side of the right end of the connecting sleeve is arranged at the inner, the boss structure is contacted with the limit plate to avoid interference between the limit plate and the sleeve, and importantly, the limit plate has force effect on the connecting sleeve to improve the assembly precision of the position, the T-shaped connection is sleeved into the sleeve, the connecting bolt penetrates through the sleeve to generate large-area contact, the zero-gravity rotation is stable and the swinging is not easy to occur, the thickness of the limit plate 54 is equal to the width of the connecting table, so that the outer end face of the limit plate is contacted with the inner end face of the boss structure of the connecting sleeve after the limit plate 54 is installed in place, the structure can ensure that the bolt is in a flexible rotating state, in addition, the axial position is limited, the screwing degree of the nut does not influence the axial limiting of the connecting bolt, the outer end of the limit plate limits the connecting sleeve, further limits the axial matching of the connecting bolt and the sleeve, and the limit plate is adopted to limit the axial, the effectual axial fit clearance who has guaranteed connecting bolt cooperation department, the fixed plate of being convenient for and the clearance fit of returning face plate, activity assembly's operation, effectual improvement assembly efficiency, the fastening bolt of the inboard of limiting plate plays and carries out spacing effect to the limiting plate, further improves the reliability that this device is connected.

The outer wall of the vertical plate 31 is provided with two limiting columns 8, two arc-shaped limiting holes 42 matched with the limiting columns 8 are arranged at corresponding positions on the connecting plate 41, the two limiting holes 42 are concentric and positioned on the same circle, the turnover plate is turned over by taking the connecting bolt as an axis during turning, and the connecting bolt and the turnover plate synchronously move, the mode can effectively reduce the stress on the connecting bolt, avoid the deformation of the connecting bolt, effectively prolong the service life of the connecting bolt and further prolong the service life of a framework, the turnover plate is turned over, the two limiting columns 8 respectively and correspondingly contact with the end parts of the limiting holes 42 to control the turning amplitude of the turnover plate, further realize the constraint and limitation of the zero gravity adjusting range of the framework, improve the safety during zero gravity adjustment, the rear side of the vertical plate 31 is an inclined plane 311, the width of the upper part of the vertical plate is smaller than the width of the lower part of the vertical plate, when, namely, when the zero gravity function is adjusted, the turning surface can be turned downwards to move close to the inclined surface 311, when the turnover plate is opened to the maximum position, namely the maximum angle of zero gravity adjustment, the rear part of the turnover plate can be pressed on the inclined surface, the inclined surface can limit the turnover angle of the turnover plate to avoid the turnover plate from continuing to turn over, and the inclined surface can support the turnover plate, at the position, the inclined surface bears the pressure of the turnover plate, the matching of the limiting column and the limiting hole, and the matching of the inclined surface and the turnover plate not only have the effect of limiting the zero gravity adjustment range, but also have the supporting function when the maximum angle is opened by zero gravity adjustment, the support of the framework is realized by the support of the limiting column and the turnover plate, the safety is improved, the comfortable chair has sufficient safety when the zero gravity adjustment is carried out, the outer diameter of the limiting column is the same as the aperture of the limiting hole, make spacing post have limiting displacement to the connecting plate, can keep the stability of connecting plate, the both sides riser has all been carried out better spacing by spacing post, realizes then that the stability to the returning face plate is spacing, rocks about avoiding the returning face plate, improves the stability of upset.

In order to improve the stability of the rear part of the roll-over plate matching with the inclined plane, the rear side of the connecting plate 41 is provided with a projecting part 411 projecting backwards, the projecting part 41 enables the rear end face of the connecting plate 41 to have a plane straight section and an arc section, the straight section is arranged at the upper part, the lake section is arranged at the lower part, the straight section and the arc section are in arc transition, on one hand, the structure of the connecting plate enables the area of the roll-over plate to be large and has enough strength, on the other hand, the straight section of the connecting plate is arranged at the upper part of the connecting plate, the area of the straight section is the contact matching area of the roll-over plate and the inclined plane, the range of the straight section is large and can effectively ensure the contact with the inclined plane, the straight section can be suitable for comfortable chairs with different structures and the use requirements of different zero gravity adjusting ranges, the position of the connecting bolt is adjusted, the contact point, the feasible different flip angle that has, the circular arc transition between flat section of face and cambered surface section can avoid this department to appear interfering for the returning face plate can follow the quick separation from of inclined plane department, and the low terminal surface of connecting plate 41 is the cambered surface, and this line structure can effectually avoid the returning face plate to locate to take place to interfere with the riser when the upset, improves the ride comfort of zero gravity adjustment.

The outer terminal surface of connecting bolt 5 is equipped with interior hexagonal hole, interior hexagonal hole is convenient for twist and moves connecting bolt, perhaps fix a position connecting bolt, improve the convenience of operation, the front portion of fixed plate 3 is equipped with front bezel 35, be equipped with a plurality of connecting holes on the front bezel 35, the effect of front bezel 35 lies in the structural strength who improves the fixed plate, make the fixed plate can bear great load, the connecting hole can be used to connect other parts, for example can be used to connect fixed table, can conveniently place the desktop of lighter articles for daily use or ware, the structure is simple and easy and can not change because of zero gravity's motion change, can keep articles for use and ware security on the desktop like this, be unlikely to because zero gravity moves and the landing.

Example 2: in this embodiment, the positioning boss of the connecting bolt is triangular frustum-shaped.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the techniques of the present invention are substantially any simple modification and equivalent changes to the above embodiments, all falling within the protection scope of the present invention.

Claims (10)

1. A comfortable chair support with zero gravity adjusting function comprises a framework of a comfortable chair and a base at the bottom of the framework, and is characterized in that a turnover mechanism and a telescopic driving element which are movably connected are arranged between the base and the framework, the turnover mechanism comprises a fixed plate at the top of the base and a turnover plate arranged at the bottom of the framework, vertical plates extending upwards are arranged at the left side and the right side of the fixed plate, connecting plates extending downwards are arranged at the left side and the right side of the turnover plate, the distance between the two connecting plates is greater than the distance between the two vertical plates, the connecting plates are positioned at the outer sides of the vertical plates, connecting bolts extending towards the inner sides of the vertical plates and movably connected with the vertical plates are arranged on the connecting plates, the connecting bolts realize the movable connection between the turnover plates and the fixed plate, the tail end of the telescopic driving element is movably connected with the fixed plate, the, the vertical plate is provided with a sleeve matched with the connecting bolt at a corresponding position, the outer wall of the vertical plate is provided with a limiting column, the connecting plate is provided with an arc-shaped limiting hole matched with the limiting column at a corresponding position, the limiting column is in contact with the end part of the limiting hole to limit the zero gravity adjusting range of the framework, the width of the bottom of the vertical plate is larger than the width of the upper part of the vertical plate, the rear side of the vertical plate is an inclined plane, and after the turnover plate is turned over at the maximum angle, the upper part of the rear side of the turnover plate.

2. A comfortable chair support with zero gravity adjustment function as claimed in claim 1, wherein the connecting bolt is provided with a positioning boss corresponding to the connecting plate, the surface of the positioning boss is provided with a positioning structure for keeping the connecting bolt and the turnover plate synchronously rotating, the connecting plate is provided with a positioning hole matched with the positioning boss, the bolt body of the connecting bolt outside the positioning boss is provided with a limiting boss, the limiting boss is in contact with the outer side surface of the connecting plate for limiting, the connecting bolt is provided with a connecting sleeve corresponding to the bolt body of the sleeve, the connecting bolt is provided with a limiting plate corresponding to the inner side of the sleeve, the connecting bolt is provided with a connecting platform in interference fit with the limiting plate, and the bolt body of the connecting bolt inside the limiting plate is provided with a fastening bolt.

3. The comfortable chair support with zero gravity adjustment function as claimed in claim 2, wherein the positioning boss is a hexagonal prism, the side surface of the positioning boss constitutes the positioning structure, and the outer diameter of the limiting boss is larger than that of the positioning boss.

4. A comfortable chair support with zero gravity adjustment function as claimed in claim 2, wherein the connecting platform is cylindrical, the limiting plate is provided with an inner hole matched with the connecting platform, the connecting platform is provided with a positioning key slot for preventing the limiting plate from rotating, and the inner hole of the limiting plate is matched with the structure of the connecting platform.

5. A comfort seat support with zero-gravity adjustment according to claim 2, wherein the outer end face of the connecting bolt is provided with a hexagon socket.

6. The comfortable chair support with zero gravity adjustment function of claim 1, wherein the number of the limiting posts is two, the number of the limiting holes is two, and the two limiting holes are concentric.

7. A comfortable chair support with zero gravity adjustment function as claimed in claim 1, wherein the retractable driving element comprises an electric push rod and an air spring, the end of the electric push rod is hinged to a first protrusion arranged at the front part of the fixing plate, the output end of the electric push rod is hinged to the bottom of the frame, one end of the air spring is hinged to a second protrusion arranged at the front part of the fixing plate, and the other end of the air spring is hinged to the bottom of the frame.

8. A comfort chair support with zero-gravity adjustment according to claim 7, characterized in that the gas spring is a tension gas spring.

9. The chair support of claim 1, wherein the front portion of the fixing plate has a front plate, and the front plate has a plurality of connecting holes.

10. A comfortable chair support with zero gravity adjusting function as claimed in claim 1, wherein the connecting plate has a protrusion protruding backward at the rear side, the rear end surface of the connecting plate above the protrusion is a flat surface section, the rear end surface of the connecting plate at the protrusion is an arc surface section, and the flat surface section and the arc surface section are in arc transition.

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