CN201360760Y

CN201360760Y - Chair tool chassis

Info

Publication number: CN201360760Y
Application number: CNU200920114866XU
Authority: CN
Inventors: 陈千奎
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-05
Filing date: 2009-03-05
Publication date: 2009-12-16
Anticipated expiration: 2019-03-05

Abstract

The utility model relates to a chair tool chassis, belonging to the technical field of chair tool accessories. A large disc is assembled with a pin board which is provided with a plurality of pin holes; a central disc is internally provided with a pin frame; one end of the pin frame, closing to the pin board, is provided with a pin groove which is internally provided with a pin; the end wall of the pin groove, closing to the pin board, is provided with a first through hole; the end surface of the central disc between the first through hole and the pin board is provided with a second through hole which allows the pin to pass through; the middle part of the pin forms a ring-shaped boss; the two sides of the ring-shaped boss corresponding to the pin are respectively sheathed with a first spring and a second spring, wherein one end of the first spring contacts with the inner wall of the front end closing to the pin board; the other end of the first spring contacts with one end of the ring-shaped boss; one end of the second spring contacts with the other end of the ring-shaped boss; the other end of the second spring contacts with the inner wall of the other end of the pin groove; and a seat controlling handle spindle is connected with the central disc in a rotating way and is fixed with a poke bock which is matched with the pin frame.

Description

Chair tool chassis

Technical field

The utility model relates to a kind of chair tool chassis, belongs to the technical field of chair tool accessory.

Technical background

Tradition can reclining chair be the reclining of controlling the chair back by the control structure on chassis, the general V-type carriage that adopts, the reclining of the chair back of the body realizes indirectly by the V-type carriage, also have on the fixed pin shaft of employing and connect tooth bar, can reach the fixedly reclining position of the chair back, the reclining of controlling the chair back by spring, friction plate is also arranged, but seat support can not produce reclining, controls inconvenience.In addition, existing chair tool chassis may produce behind the locking action of mechanism out of hand and chase after the back of the body, promptly under user back and the discontiguous situation of the chair back, the chair back may clash into user's back under the effect of back-moving spring, causes the injured problem in user back.

Summary of the invention

The utility model purpose is to provide a kind of the realize chair back and the synchronous reclining of seat support, and is easy to operate, can not chase after the back of the body, chair tool chassis safe in utilization, the seat support that has solved the existence of existing chair tool chassis can not produce reclining, controls inconvenience, and may chase after the back of the body, cause problems such as the user back is injured.

Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: it comprises and is used for the mid-game that is connected with air pressure rod, be used for the left plate that is connected with seat support with right plate and be used for the deep bid that is connected with the chair back, one end of described left plate and an end of right plate are rotationally connected by rotating shaft with an end of mid-game and an end of deep bid respectively, the other end of the other end of described left plate and the other end of right plate and deep bid is riveted together, be equipped with pinboard on the described deep bid, pinboard is provided with several pin holes, be provided with the latch frame in the described mid-game, the latch frame is provided with cotter way near an end of pinboard, be provided with latch in the cotter way, cotter way is provided with first through hole near this end end wall of pinboard, the end face of the mid-game between first through hole and pinboard is provided with second through hole of allowing that latch passes through, the latch middle part is formed with annular boss, latch is arranged with first spring and second spring respectively corresponding to the annular boss both sides, wherein an end of first spring contacts with the front inner wall of cotter way near pinboard, one end in contact of the other end of first spring and annular boss, one end of second spring contacts with the other end of annular boss, the other end of second spring contacts with the other end inwall of cotter way, seat support joystick axle and mid-game are rotationally connected and are fixed with slide block on seat support joystick axles, slide block cooperates with the latch frame, can drive slide block and rotate by rotating seat support joystick axle, slide block can be stirred the latch frame and move along the axis direction of latch.In the time of need realizing free reclining when the chair back that is connected with deep bid and with the seat support that left plate is connected with right plate, then rotating the seat support joystick stirs the latch frame by slide block and moves a certain distance to the direction away from pinboard, at this moment, when the user applies with active force by the back to the chair back, and small swing takes place the pinboard of deep bid assembling reduces pin hole on the pinboard and the frictional force between the latch or disappears, latch withdraws from the pin hole of pinboard under the effect of first spring, and the chair back and seat support are in the state of synchronous free reclining; When the chair back and seat support need lock, the user applies active force by the back to the chair back, behind the angle of inclination that regulates the chair back and seat support, by slide block the latch frame is moved a certain distance by the seat support joystick to the direction near pinboard once more, certain pin hole on pinboard and latch on time, latch then enters into pin hole under the effect of second spring, with the angle of inclination locking of the chair back and seat support.Wherein, can be by the shelves number of how much regulating seat support and chair back adjusting of pin hole quantity on the pinboard.In addition, when the chair back is not subjected to user's back active force, owing to have frictional force between the pin-and-hole of pinboard and the latch, so even the user moves a certain distance the latch frame by the seat support joystick to the direction away from pinboard, latch can not withdraw from the pin hole of pinboard yet, the angle of inclination that is the chair back and seat support still is in the lock state, thereby prevents to chase after the back of the body, plays protection user effect safe in utilization; Have only when the chair back is subjected to user's back active force, after pinboard small angle takes place changed, latch could withdraw from pin hole.

As preferably, the rear end of described latch frame is formed with the strip fluting, the locating shaft of crossbearer between the mid-game two side is positioned at the strip fluting for one section, strip fluting is along the width of the latch axis direction diameter greater than locating shaft, the opening part of strip fluting is fixed with shell fragment, shell fragment is formed with inner fovea part, and the bottom surface and the locating shaft of described inner fovea part offset.Wherein, locating shaft is engaged in the guide effect that can play in the strip fluting of latch frame the latch frame, and shell fragment forms the recess that contacts with locating shaft then can apply mobile frictional force to the motion of latch frame, prevents the random slip of latch frame.

As preferably, the middle part of described latch frame is formed with allocating slot, and described slide block one end is positioned at allocating slot.

As preferably, air pressure rod joystick axle is rotationally connected in the described mid-game, be installed with briquetting on the air pressure rod joystick axle, described briquetting is made of axle sleeve that is integrative-structure and the aerofoil profile pressure head that is connected on the axle sleeve, axle sleeve and air pressure rod joystick axle are fixed by pin, and described pressure head is corresponding to the air pressure rod connection hole of mid-game.

As preferably, be arranged with torsion spring on the described air pressure rod joystick axle, described torsion spring makes the pressure head on the briquetting have the trend that the air pressure rod control valve is closed.

As preferably, rotational support has the initial adjustment Handle axis in the described mid-game, the initial adjustment Handle axis is fixed with left cushion block and right cushion block respectively corresponding to the position of inboard, mid-game two side, circumferential and the right cushion block of left side cushion block circumferential has the supporting surface that several can contact with the lower surface of deep bid respectively, the inboard of mid-game two side is provided with the locating hole of some curved distributions, be respectively equipped with on left side cushion block and the right cushion block and dial the hole of bead, dial to be provided with in the hole of bead and dial pearl, dial pearl and dial between the bottom, the hole of bead and be provided with spring, spring has and partly is exposed to and dials outside the hole of bead dialling pearl, be positioned at when cooperating when dialling pearl with a certain locating hole of mid-game inside sidewalls, the position of left side cushion block and right cushion block is locked, and one of them supporting surface of left cushion block and right cushion block contacts the position that limits deep bid with the deep bid bottom surface.The quantity of supporting surface that wherein, can be by setting left cushion block and right cushion block circumference is set the adjusting shelves number of seat support initial angle.

As preferably, the inboard, two side of described mid-game is set with elastic cylindrical pin respectively, and the outer wall of described elastic cylindrical pin contacts with the circumference of left cushion block and right cushion block.Wherein, elastic cylindrical pin contacts with left cushion block and right cushion block and increases shift feeling can for the rotation of initial adjustment handle.

As preferably, the cross section of described initial adjustment Handle axis is polygon, and described left cushion block and right cushion block are provided with the mating holes that cooperates with the cross section of initial adjustment Handle axis.

Therefore, the utlity model has and can realize the chair back and the synchronous reclining of seat support, easy to operate, can not chase after the back of the body, characteristics such as safe in utilization.

Description of drawings

Fig. 1 is a kind of assembly structure schematic diagram of the present utility model;

Fig. 2 is the decomposition structural scheme of mechanism of left and right side plate of the utility model and deep bid;

Fig. 3 is the decomposition texture schematic diagram of the utility model latch frame and latch;

Fig. 4 is the decomposition texture schematic diagram of initial adjustment Handle axis and left and right cushion block.

The specific embodiment

Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.

Embodiment 1: as Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, chair tool chassis comprises and is used for the mid-game 1 that is connected with air pressure rod, be used for the left plate 2 that is connected with seat support with right plate 3 and be used for the deep bid 4 that is connected with the chair back, one end of left plate 2 and an end of right plate 3 are rotationally connected by rotating shaft with an end of mid-game 1 and an end of deep bid 4 respectively, the other end of the other end of the other end of left plate 2 and right plate 3 and deep bid 4 is riveted together, be equipped with pinboard 5 on the deep bid 4, pinboard 5 is provided with five pin holes 6, be provided with latch frame 7 in the mid-game 1, latch frame 7 is provided with cotter way 8 near an end of pinboard 5, be provided with latch 10 in the cotter way 8, cotter way 8 is provided with first through hole 9 near this end end wall of pinboard 5, the end face of the mid-game 1 between first through hole 9 and pinboard 5 is provided with second through hole 11 of allowing that latch 10 passes through, the middle part of latch 10 is formed with annular boss 12, latch 10 is arranged with first spring 13 and second spring 14 respectively corresponding to annular boss 12 both sides, wherein an end of first spring 13 contacts with the front inner wall of cotter way 8 near pinboard 5, one end in contact of the other end of first spring 13 and annular boss 12, one end of second spring 14 contacts with the other end of annular boss 12, the other end of second spring 14 contacts with the other end inwall of cotter way 8, seat support joystick axle 15 is rotationally connected with mid-game 1 and is fixed with slide block 16 on seat support joystick axle 15, the middle part of latch frame 7 is formed with allocating slot 17, and slide block 16 1 ends are positioned at allocating slot 17.Can drive slide block 16 and rotate by rotating seat support joystick axle 15, slide block 16 can be stirred latch frame 7 and move along the axis direction of latch 10.The rear end of latch frame 7 is formed with strip fluting 18, the locating shaft of crossbearer between mid-game 1 two side is positioned at strip fluting 18 for 19 1 sections, strip fluting 18 is along the width of the latch axis direction diameter greater than locating shaft 19, the opening part of strip fluting 18 is fixed with shell fragment 20, shell fragment 20 is formed with inner fovea part 21, the bottom surface of inner fovea part 21 and locating shaft 19 offset, and are connected by screw between shell fragment and the latch frame 7.In the time of need realizing free reclining when the chair back that is connected with deep bid and with the seat support that left plate is connected with right plate, then rotating the seat support joystick stirs the latch frame by slide block and moves a certain distance to the direction away from pinboard, at this moment, when the user applies with active force by the back to the chair back, and small swing takes place the pinboard of deep bid assembling reduces pin hole on the pinboard and the frictional force between the latch or disappears, latch withdraws from the pin hole of pinboard under the effect of first spring, and the chair back and seat support are in the state of synchronous free reclining; When the chair back and seat support need lock, the user applies active force by the back to the chair back, behind the angle of inclination that regulates the chair back and seat support, by slide block the latch frame is moved a certain distance by the seat support joystick to the direction near pinboard once more, certain pin hole on pinboard and latch on time, latch then enters into pin hole under the effect of second spring, with the angle of inclination locking of the chair back and seat support.Wherein, can be by the shelves number of how much regulating seat support and chair back adjusting of pin hole quantity on the pinboard.In addition, when the chair back is not subjected to user's back active force, owing to have frictional force between the pin-and-hole of pinboard and the latch, so even the user moves a certain distance the latch frame by the seat support joystick to the direction away from pinboard, latch can not withdraw from the pin hole of pinboard yet, the angle of inclination that is the chair back and seat support still is in the lock state, thereby prevents to chase after the back of the body, plays protection user effect safe in utilization; Have only when the chair back is subjected to user's back active force, after pinboard small angle takes place changed, latch could withdraw from pin hole.

Air pressure rod joystick axle 22 is rotationally connected in the mid-game 1, be installed with briquetting 23 on the air pressure rod joystick axle 22, briquetting 23 is made of axle sleeve 24 that is integrative-structure and the aerofoil profile pressure head 25 that is connected on the axle sleeve 24, axle sleeve 24 and air pressure rod joystick axle 22 are fixed by pin, pressure head 25 is corresponding to the air pressure rod connection hole of mid-game 1, be arranged with torsion spring 26 on the air pressure rod joystick axle 22, torsion spring 26 makes the pressure head 25 on the briquetting 23 have the trend that the air pressure rod control valve is closed.

Rotational support has initial adjustment Handle axis 27 in the mid-game 1, the cross section of initial adjustment Handle axis 27 is regular hexagon, left side cushion block 28 and right cushion block 29 are provided with the mating holes that cooperates with the cross section of initial adjustment Handle axis 27 and cooperate and be installed on the initial adjustment Handle axis 27, left side cushion block 28 and right cushion block 29 correspond respectively to the inboard, two side of mid-game 1, circumferential and the right cushion block 29 of left side cushion block 28 circumferential has three supporting surfaces that can contact with the lower surface of deep bid 4 respectively, the inboard of the two side of mid-game 1 is provided with the locating hole 30 of three curved distributions, be respectively equipped with on left side cushion block 28 and the right cushion block 29 and dial the hole of bead, dial to be provided with in the hole of bead and dial pearl, dial pearl and dial between the bottom, the hole of bead and be provided with spring, spring has and partly is exposed to and dials outside the hole of bead dialling pearl, be positioned at when cooperating when dialling pearl with a certain locating hole of mid-game inside sidewalls, the position of left side cushion block and right cushion block is locked, and one of them supporting surface of left cushion block and right cushion block contacts the position that limits deep bid with the deep bid bottom surface.The inboard, two side of mid-game 1 is set with elastic cylindrical pin 31 respectively, and the outer wall of elastic cylindrical pin 31 contacts with the circumference of left cushion block 28 and right cushion block 29.

Claims

1, a kind of chair tool chassis, comprise and be used for the mid-game that is connected with air pressure rod, be used for the left plate that is connected with seat support with right plate and be used for the deep bid that is connected with the chair back, it is characterized in that: an end of described left plate and an end of right plate are rotationally connected by rotating shaft with an end of mid-game and an end of deep bid respectively, the other end of the other end of described left plate and the other end of right plate and deep bid is riveted together, be equipped with pinboard on the described deep bid, pinboard is provided with several pin holes, be provided with the latch frame in the described mid-game, the latch frame is provided with cotter way near an end of pinboard, be provided with latch in the cotter way, cotter way is provided with first through hole near this end end wall of pinboard, the end face of the mid-game between first through hole and pinboard is provided with second through hole of allowing that latch passes through, the latch middle part is formed with annular boss, latch is arranged with first spring and second spring respectively corresponding to the annular boss both sides, wherein an end of first spring contacts with the front inner wall of cotter way near pinboard, one end in contact of the other end of first spring and annular boss, one end of second spring contacts with the other end of annular boss, the other end of second spring contacts with the other end inwall of cotter way, seat support joystick axle and mid-game are rotationally connected and are fixed with slide block on seat support joystick axles, slide block cooperates with the latch frame, can drive slide block and rotate by rotating seat support joystick axle, slide block can be stirred the latch frame and move along the axis direction of latch.

2, chair tool according to claim 1 chassis, the rear end that it is characterized in that described latch frame is formed with the strip fluting, the locating shaft of crossbearer between the mid-game two side is positioned at the strip fluting for one section, strip fluting is along the width of the latch axis direction diameter greater than locating shaft, the opening part of strip fluting is fixed with shell fragment, shell fragment is formed with inner fovea part, and the bottom surface and the locating shaft of described inner fovea part offset.

3, chair tool according to claim 1 and 2 chassis is characterized in that the middle part of described latch frame is formed with allocating slot, and described slide block one end is positioned at allocating slot.

4, chair tool according to claim 1 and 2 chassis, it is characterized in that the air pressure rod joystick axle that is rotationally connected in the described mid-game, be installed with briquetting on the air pressure rod joystick axle, described briquetting is made of axle sleeve that is integrative-structure and the aerofoil profile pressure head that is connected on the axle sleeve, axle sleeve and air pressure rod joystick axle are fixed by pin, and described pressure head is corresponding to the air pressure rod connection hole of mid-game.

5, chair tool according to claim 4 chassis is characterized in that being arranged with torsion spring on the described air pressure rod joystick axle, and described torsion spring makes the pressure head on the briquetting have the trend that the air pressure rod control valve is closed.

6, chair tool according to claim 1 and 2 chassis, it is characterized in that rotational support has the initial adjustment Handle axis in the described mid-game, the initial adjustment Handle axis is fixed with left cushion block and right cushion block respectively corresponding to the position of inboard, mid-game two side, circumferential and the right cushion block of left side cushion block circumferential has the supporting surface that several can contact with the lower surface of deep bid respectively, the inboard of mid-game two side is provided with the locating hole of some curved distributions, be respectively equipped with on left side cushion block and the right cushion block and dial the hole of bead, dial to be provided with in the hole of bead and dial pearl, dial pearl and dial between the bottom, the hole of bead and be provided with spring, spring has and partly is exposed to and dials outside the hole of bead dialling pearl, be positioned at when cooperating when dialling pearl with a certain locating hole of mid-game inside sidewalls, the position of left side cushion block and right cushion block is locked, and one of them supporting surface of left cushion block and right cushion block contacts the position that limits deep bid with the deep bid bottom surface.

7, chair tool according to claim 6 chassis is characterized in that the inboard, two side of described mid-game is set with elastic cylindrical pin respectively, and the outer wall of described elastic cylindrical pin contacts with the circumference of left cushion block and right cushion block.

8, chair tool according to claim 6 chassis is characterized in that the cross section of described initial adjustment Handle axis is polygon, and described left cushion block and right cushion block are provided with the mating holes that cooperates with the cross section of initial adjustment Handle axis.