CN205041037U - Revolving chair stock - Google Patents
Revolving chair stock Download PDFInfo
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- CN205041037U CN205041037U CN201520781768.7U CN201520781768U CN205041037U CN 205041037 U CN205041037 U CN 205041037U CN 201520781768 U CN201520781768 U CN 201520781768U CN 205041037 U CN205041037 U CN 205041037U
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Abstract
The utility model discloses a revolving chair stock, including base and bracket, the bracket links to each other through pivot and base, still includes the adjusting screw that swing and level set up, and in the base was inserted to adjusting screw's one end, adjusting screw's the other end exposed outside the base, and adjusting screw exposes part in the base outside and overlaps and be equipped with the spring, and adjusting screw expose the screw section outside the base on screw -thread fit have the nut for regulating spring deformation degree, the swing is flat lie set up in the base and the middle part of swing articulated with the base, the one end of swing connects with this end hinge that adjusting screw inserted the base, the bracket has one and extends to the bogie in the base, when the bracket rotates the other end hand drive frame of swing promote or the pulling so that the swing takes place to rotate, and then drive adjusting screw and move and impel spring distortion in order to form the restoring force of bracket. The utility model discloses a tray can reduce the space waste because the spring is horizontal installation, and the shape is more regular when the vanning transportation, increase the vanning volume.
Description
Technical field
The utility model relates to swivel chair, office chair technical field, particularly a kind of Revolving chair tray.
Background technology
Revolving chair tray, also claims Revolving chair chassis, is the vitals be contained in below swivel chair seat cushion, the lifting of seat cushion, and the elevation angle of backrest regulates and all relies on pallet.
Such as, Chinese patent (notification number: CN2922618) discloses one: " lifting and reclining Chair underpan ", and this chair tray is by upper dish, mid-game and knob composition, knob is fixed on by CARRIAGE BOLTS and coils, and dust cover, washer and spring fitting are in mid-game, during chair reclining, spring plays reset response to chair reclining, as can be seen from this patent, knob, spring and CARRIAGE BOLTS are vertical or be almost vertically arranged on pallet substantially, i.e. knob, formed by the axis of spring and CARRIAGE BOLTS and mid-game or seat support, angle is 70 ~ 90 degree, during to the elastic force of regulating spring with the reset response power of regulating spring to chair reclining, need to squat down or bend by turning knob with the upper-lower position of adjusting knob on CARRIAGE BOLTS, thus the compression degree of regulating spring is with the reset response power of regulating spring to chair reclining, inconvenient operation, comparatively require great effort, and especially bend to regulate posture unbecoming for women, adjusting knob can not be removed because above-mentioned defect directly results in user in a lot of situation, therefore directly results in the waste of above-mentioned functions.
Notification number is: the Chinese patent of " CN102090805 " improves, provide the Chair underframe that a kind of reclining power is adjustable, it comprises mid-game and deep bid, the rear portion of deep bid can around the shaft relative to mid-game to lower swing, the lower front of mid-game is provided with knob, and knob has cavity, is provided with the installing plate fixing with knob in the cavity of described knob, the position that knob corresponds to below installing plate is provided with worm gear, and described worm gear can around own axes relative to knob; Its utility model main points are: correspond to worm gear side in knob and be provided with the worm screw engaged with worm gear, handle one end enters to be connected with described worm-drive in knob from knob is overhanging, adjusting bolt matches through screw thread after the installing plate in deep bid, mid-game and knob and described worm gear from top to bottom successively, described adjusting bolt is coaxial with worm gear, and the position that adjusting bolt corresponds to more than below mid-game and installing plate is arranged with helical spring.
By such improvement, without the need to bending, only need to stretch out one's hand turning handle namely to move up or down by worm and gear adjusting bolt, thus the compression degree of adjustable screw spring.Equally, notification number is: " CN201602417 ", utility model name are called: the utility model patent of " worm and gear adjusting swivel chair tray " also has similar improvement, and adjusting handle is in seat side edges, and user is namely adjustable without the need to squatting down or bending.
But above-mentioned patent has a common shortcoming to be: knob, spring and adjusting bolt are vertical or be almost vertically arranged on pallet substantially, that is angle formed by the axis of knob, spring and adjusting bolt and pallet or seat support is 70 ~ 90 degree, so from chair front or two sides, can very clearly see the knob exposed below pallet, very unsightly, also reduce the class of product to a certain extent, the requirement succinct to chair appearance that people improve day by day can not be adapted to again; Again furtherly, such version out-of-shape, be unfavorable for improving vanning amount, protruding knob causes packing case directly to thicken, and cabinet interior has many places to be all empty in fact, wastes cabinet interior space, adds cost of transportation.
Utility model content
The utility model to overcome in above-mentioned prior art existing deficiency, provide a kind of not only can make swivel chair overall succinctly attractive in appearance, but also facilitate regulating spring compression degree and the Revolving chair tray of vanning amount can be improved.
The technical solution of the utility model is achieved in that
A kind of Revolving chair tray, comprise connecting the base of gas bar, in order to connect the bracket of seat support, bracket is connected with base by horizontally disposed rotating shaft, also comprise a swing component and horizontally disposed adjusting screw(rod), in one end inserted base of adjusting screw(rod), the other end of adjusting screw(rod) is exposed to outside base, and the part that adjusting screw(rod) is exposed to outside base is arranged with spring, and on adjusting screw(rod) is exposed to outside base thread segment, threaded engagement has the nut in order to regulating spring initial deformation degree; Swing component lie low be arranged in base and the middle part of swing component and base hinged, one end of swing component and this end of adjusting screw(rod) inserted base hinged, bracket extends to the bogie in base with one, during carriage turns, the other end of swing component promotes by bogie or pulls swing component is rotated, and then drives adjusting screw(rod) to move and impel camber of spring to form the restoring force of bracket.
As preferably, the central axis that swing component rotates is in horizontal plane, and the rotation direction of swing component is horizontal direction.Swing component lies low setting, not only can simplify the drives structure of chassis interior, reduce and drive related components, also make it possible to the whole height reducing base further, pallet is made to accomplish lightweight, miniaturization, from result of use, pallet entirety can be made almost to be hidden in below swivel chair seat support, improve aesthetic measure and the class of swivel chair.
As preferably, be provided with support at base internal fixtion, swing component and support are by the first hinge, and the first described bearing pin is arranged perpendicular to horizontal plane.Described support is connected with base by welding manner.
As preferably, described support comprises the gripper shoe of a pair spaced and parallel setting, and the side plate of gripper shoe one end and base is fixedly linked, and correspondingly in gripper shoe offers the axis hole coordinated with the first bearing pin, and swing component is arranged between two gripper shoes.Swing component is arranged between two gripper shoes, does not directly contact with base, contributes to reducing frictional force, makes rotation more smooth and easy.
As preferably, described support comprises a horizontally disposed gripper shoe, the side plate of gripper shoe one end and base is fixedly linked, and correspondingly on the base plate of gripper shoe with base offers the axis hole coordinated with the first bearing pin, and swing component is arranged between gripper shoe and the base plate of base.Gripper shoe coordinates the axle bed as the first bearing pin with the base plate of base, contributes to reducing parts, simplifies structure.
As preferably, described swing component entirety is L-shaped.
As preferably, described swing component comprises the L shaped plate that two Parallel Symmetrics are arranged, and is fixedly linked between two L shaped plates by least one connecting plate, hinged with base in the middle part of L shaped plate, one arm of L shaped plate and adjusting screw(rod) hinged, another arm of L shaped plate matches with bogie.
As preferably, be provided with the second bearing pin between another arm of two L shaped plates, on the second bearing pin, turning set is provided with force block, and described force block has the stress surface contacted all the time with bogie corresponding site.Due to swing component swing time, the motion track of the second bearing pin is arc line shaped, and force block is owing to directly contacting with bogie and promoting by bogie, stress surface is preferably plane, so force block self also rotates to keep offseting with bogie all the time when swing component swings thereupon, the power of bogie can be fully transmitted on swing component, there is no the loss of power.
Conveniently coordinate with swing component, as preferably, be provided with the 3rd bearing pin for promoting swing component in bogie lower end, two ends, left and right and the bogie of the 3rd bearing pin are rotationally connected.The setting of the 3rd bearing pin with contact form is become linear contact lay, decrease frictional force during contact.
As preferably, on the 3rd bearing pin, turning set is provided with axle sleeve.Axle sleeve is rotary, therefore when especially matching with force block with bogie, axle sleeve produce force of rolling friction, than linear contact lay produce force of sliding friction less, can make the 3rd between bearing pin with bogie coordinate more smooth and easy.
For strengthening the fastness of swing component, prevent distortion, and take into account the volume reducing swing component, as preferably, swing component entirety is triangular in shape.
As preferably, described swing component comprises the set square that two Parallel Symmetrics are arranged, plane residing for the base plate of plane residing for described set square and base is parallel, be fixedly linked by least one connecting plate between two set squares, two angles of set square respectively with base and adjusting screw(rod) hinged, match with bogie in another angle of set square.
As preferably, be provided with the second bearing pin between two jiaos of two set squares coordinated at bogie, on the second bearing pin, turning set is provided with force block, and described force block has the stress surface contacted all the time with bogie corresponding site.In like manner, due to swing component swing time, the motion track of the second bearing pin is arc line shaped, and force block is owing to directly contacting with bogie and promoting by bogie, stress surface is preferably plane, so force block self also rotates to keep offseting with bogie all the time when swing component swings thereupon, the power of bogie can be fully transmitted on swing component, there is no the loss of power.
As preferably, be provided with the 3rd bearing pin for promoting force block in bogie lower end, two ends, left and right and the bogie of the 3rd bearing pin are rotationally connected.The setting of the 3rd bearing pin with contact form is become linear contact lay, decrease frictional force during contact.
As preferably, on the 3rd bearing pin, turning set is provided with axle sleeve.Axle sleeve is rotary, therefore when especially matching with force block with bogie, axle sleeve produce force of rolling friction, than linear contact lay produce force of sliding friction less, can make the 3rd between bearing pin with bogie coordinate more smooth and easy.
As preferably, this end that swing component coordinates with bogie is equipped with the 4th bearing pin, bracket is provided with in base, one end and the bogie lower end of bracket are hinged, the other end of bracket is equipped with the 5th bearing pin, together with 4th bearing pin and both hook joints arranged in a crossed manner with the 5th bearing pin, make bogie pull bracket during carriage turns, and then pull swing component to make it rotate.Because the installation site between each parts can be different, this kind is arranged, and when can make carriage turns, pulls bracket moving by bogie, and then makes bracket drive again swing component to rotate.
As preferably, on the 5th bearing pin, turning set is provided with axle sleeve, and on the 4th bearing pin, turning set is provided with force block, and described force block has the stress surface contacted all the time with bogie corresponding site, and described axle sleeve contacts with stress surface.In like manner, due to swing component swing time, the motion track of the 4th bearing pin is arc line shaped, and force block is owing to directly contacting with bracket and promoting by bracket, stress surface is preferably plane, so force block self also rotates to keep offseting with bracket all the time when swing component swings thereupon, the power of bracket can be fully transmitted on swing component, there is no the loss of power; And simultaneously axle sleeve is rotary, therefore when matching with force block, the force of rolling friction that axle sleeve produces, the force of sliding friction produced than linear contact lay is less, can make the 4th between bearing pin with bogie coordinate more smooth and easy.
As preferably, be respectively provided with a spring support at the two ends of spring, the two ends of spring offset respectively by the side plate of adjacent spring support and nut, base.
As preferably, also comprise a regulating handle, this regulating handle is connected with a sleeve, and described jacket casing is located at outside spring, and nut is fixedly installed at the bottom of sleeve cylinder.The axis of the axis of regulating handle, sleeve and adjusting screw(rod), spring is on the same line, and regulating handle is in chair side, stretches out one's hand and just can encounter, facilitate the compression degree of adjusting nut and spring, and sleeve encases spring and avoids it to expose outside.
As preferably, described sleeve has an extension, and described regulating handle and extension are fixed with circumference, the mode of moving axially connects together.When without the need to adjusting nut, regulating handle can be slided to the inside, to make regulating handle be hidden in completely below seat support, and when needs adjusting nut, regulating handle pull-out be carried out regulating.
As preferably, extension sidewall is in axial direction provided with chute, on the hollow wall of regulating handle, correspondence is provided with slide block, and slide block is stuck in chute.
As preferably, described base comprises base plate and is vertically installed in the side plate of base plate both sides, and side plate is provided with the perforation penetrated for adjusting screw(rod) wherein.
As preferably, bogie upper end and bracket are welded and fixed, and bogie lower end extends in base.
As preferably, the gas bar jack for gas bar of planting is provided with in the center of base, swing component is arranged around gas bar jack, with base center for boundary, the hinged place of swing component and base and spring are in the left and right sides of base center respectively, and adjusting screw(rod) is then in the both sides, front and back of base center respectively with bogie.Such structural design, makes, not affecting under drives structure form of the present invention, can make full use of existing space, make structure compacter, reduces volume, makes pallet more miniaturized.
Have employed the design starting point of the present utility model of technique scheme, theory and beneficial effect is:
Revolving chair tray of the present utility model changes spring into horizontal installation by vertical installation, and the power transmission of carriage turns and adjusting screw(rod) has been come by the swing component in base, very ingenious, the benefit of laterally installing is that the axis of spring and the axis of regulating handle are on a line substantially, not only squat down without the need to bending, make adjustment more convenient, and it is arranged on after on seat support, relatively roomy seat support can cover in spring and regulating handle major part position, from appearance, one of regulating handle is only had to expose outside, the overall simplicity generosity of chair appearance, not only meet the convenient function regulated, also improve product specification.
Meanwhile, pallet of the present utility model is horizontal installation due to spring, so shape is more regular, effectively can reduces space waste, increasing vanning amount, reducing cost of transportation when casing transport.
Again furtherly, swing component lies low and is arranged in base, not only can simplify the drives structure of chassis interior, reduce and drive related components, also make it possible to the whole height reducing base further, make pallet further accomplish lightweight, miniaturization, from result of use, pallet entirety can be made almost to be hidden in below swivel chair seat support, to improve aesthetic measure and the class of swivel chair.
Meanwhile, swing component lies low and is arranged in base, such setting, makes the installation of adjusting screw(rod) and spring have more flexibility, can be arranged on base front portion or rear portion according to actual needs, and correspondence, only need change the installation direction of swing component.
Accompanying drawing explanation
Fig. 1 is the perspective view of pallet in embodiment 1;
Fig. 2 is the internal structure schematic diagram of pallet in embodiment 1;
Fig. 3 is the internal structure schematic diagram of another angle of pallet in embodiment 1;
Fig. 4 is the plan structure schematic diagram of pallet in embodiment 1;
Fig. 5 is the planar structure schematic diagram representing in embodiment 1 that bogie matches with swing component;
Fig. 6 is the swing component schematic diagram that coordinates hinged with adjusting screw(rod) in embodiment 1;
Fig. 7 is the fractionation structural representation of bracket, swing component and base in embodiment 1;
Fig. 8 is the fractionation structural representation of another angle of bracket, swing component and base in embodiment 1;
Fig. 9 is the explosive view of pallet in embodiment 1;
Chassis interior stereoscopic-state schematic diagram when Figure 10 is carriage turns 9 degree in embodiment 1;
The flat state schematic diagram of base when Figure 11 is carriage turns 9 degree in embodiment 1;
Chassis interior stereoscopic-state schematic diagram when Figure 12 is carriage turns 19 degree in embodiment 1;
The flat state schematic diagram of base when Figure 13 is carriage turns 19 degree in embodiment 1;
Figure 14 is the perspective view of pallet in embodiment 2;
Figure 15 is the planar structure schematic diagram of pallet in embodiment 2;
Chassis interior stereoscopic-state schematic diagram when Figure 16 is carriage turns 9 degree in embodiment 2;
The flat state schematic diagram of base when Figure 17 is carriage turns 9 degree in embodiment 2;
Chassis interior stereoscopic-state schematic diagram when Figure 18 is carriage turns 19 degree in embodiment 2;
The flat state schematic diagram of base when Figure 19 is carriage turns 19 degree in embodiment 2;
Figure 20 is the internal structure schematic diagram of pallet in embodiment 3;
Figure 21 is the internal structure schematic diagram of another angle of pallet in embodiment 3;
Figure 22 is the inner plane structural representation of pallet in embodiment 3;
Figure 23 is the explosive view of pallet in embodiment 3;
Figure 24 is the swing component schematic diagram that coordinates hinged with adjusting screw(rod) in embodiment 3;
Chassis interior stereoscopic-state schematic diagram when Figure 25 is carriage turns 9 degree in embodiment 3;
The flat state schematic diagram of base when Figure 26 is carriage turns 9 degree in embodiment 3;
Chassis interior stereoscopic-state schematic diagram when Figure 27 is carriage turns 19 degree in embodiment 3;
The flat state schematic diagram of base when Figure 28 is carriage turns 19 degree in embodiment 3;
Figure 29 is the inner plane structural representation of pallet in embodiment 4;
Figure 30 is the inside perspective view of pallet in embodiment 4.
Detailed description of the invention
Detailed description of the invention of the present utility model is as follows:
First the reference azimuth of the utility model critical piece is defined, the utility model by pallet and swivel chair when normal mounting uses, the front of swivel chair is front end, and the position that the rear of swivel chair comprises backrest place is rear end, the front end of pallet is the region away from backrest, and the rear end of pallet is the region near backrest.
Embodiment 1: present embodiments provide a kind of Revolving chair tray, as shown in figs. 1-13, a kind of Revolving chair tray, comprise connecting the base 1 of gas bar, in order to connect the bracket 2 of seat support, bracket 2 is connected with base 1 by horizontally disposed rotating shaft 3, this pallet also comprises a swing component 4 and is horizontally disposed with and circumferential fixing adjusting screw(rod) 5, and in one end inserted base 1 of adjusting screw(rod) 5, the other end of adjusting screw(rod) 5 is exposed to outside base 1.Adjusting screw(rod) 5 part be exposed to outside base 1 is arranged with spring 26, and on adjusting screw(rod) 5 is exposed to outside base 1 thread segment 27, threaded engagement has the nut 28 in order to regulating spring 26 initial compression degree; The compression degree of camber of spring degree mainly thrum spring, namely spring-compressed produces elastic force, and the different corresponding elastic force of compression degree of spring is also different; Adjusting screw(rod) 5 might not refer to that whole section of screw rod 5 is from first to last all processed with screw thread, can be only to be provided with screw thread in the part coordinated with nut 28.
Swing component 4 lie low be arranged in base 1 and the middle part of swing component 4 and base 1 hinged, one end of swing component 4 and this end of adjusting screw(rod) 5 inserted base 1 hinged, bracket 2 bottom surface extends to the bogie 6 in base 1 with one, when bracket 2 rotates, the other end of swing component 4 promotes or pulls swing component 4 is rotated by bogie 6, and then drives adjusting screw(rod) 5 to move the restoring force impelling spring 26 to be out of shape to be formed bracket 2.The central axis that swing component 4 rotates is in horizontal plane, and the rotation direction of swing component 4 is horizontal direction, because this end in adjusting screw(rod) 5 inserted base 1 is limited by swing component 4, so circumference can not be rotated.
Specifically, described base 1 comprises base plate 7 and is vertically installed in side plate 8a, 8b of base plate 7 both sides, side plate 8a is provided with the perforation 9 penetrated for adjusting screw(rod) 5 wherein, and bogie 6 upper end and bracket 2 bottom surface are welded and fixed, and bogie 6 lower end extends in base 1.Specifically, bogie 6 comprises a substrate 34 and along substrate 34 both sides to the drive plate 35 of downward-extension, is raising solidness and intensity, and two drive plates 35 are connected by least one stiffener 36.
As shown in figs. 7-9, be respectively provided with a spring support 29 at the two ends of spring 26, the two ends of spring 26 offset with the side plate 8a of nut 28, base respectively by adjacent spring support 29.Revolving chair tray of the present utility model also comprises a regulating handle 30, and this regulating handle 30 is connected with a sleeve 31, and described sleeve 31 is set in outside spring 26, and nut 28 is fixedly installed at the bottom of 31, sleeve.Again furtherly, described sleeve 31 has an extension 32, and described regulating handle 30 is fixed with circumference with extension 32, the mode of moving axially connects together; Specifically, extension 32 sidewall is in axial direction provided with chute 33, on the hollow wall of regulating handle 30, correspondence is provided with slide block (not shown), and slide block is stuck in chute 33.
As shown in Fig. 4, Fig. 7,8, be provided with support 10 at base 1 internal fixtion, swing component 4 is hinged by the first bearing pin 11 with support 10; Specifically, described support 10 comprises a horizontally disposed gripper shoe 12, the side plate 8a of gripper shoe 12 one end and base 1 is fixedly linked, correspondingly on the base plate 7 of gripper shoe 12 with base 1 offer the axis hole 13 coordinated with the first bearing pin 11, swing component 4 is arranged between the base plate 7 of gripper shoe 12 and base 1.This kind of version at utmost can reduce parts, optimizes chassis interior structure.
Alternatively implementation, described support 10 can also comprise the gripper shoe 12 of a pair spaced and parallel setting, gripper shoe 12 is perpendicular to side plate 8a, correspondingly in gripper shoe 12 be provided with the axis hole 13 coordinated with the first bearing pin 11, swing component 4 to be arranged between two gripper shoes 12 and by the first bearing pin 11 and two gripper shoes 12 hinged.
As shown in Figure 5, gas bar jack 37 for gas bar of planting is in the centre position of base 1 width, in the present embodiment, with base 1 middle for boundary, the hinged place of swing component 4 and support 10 and spring 26 are in the same side of base 1 middle, spring 26 is in pan frontward end or rear end, can certainly as required choice arrangement in the both sides of base 1 middle.Bracket 2 makes bogie 6 promote swing component 4 to rotate and then Compress Spring when rotating backward.
As shown in Fig. 4,6,9, described swing component 4 is overall L-shaped, described swing component 4 comprises the L shaped plate 14 that two Parallel Symmetrics are arranged, be fixedly linked by least one connecting plate 15 between two L shaped plates 14, hinged with gripper shoe 12 in the middle part of L shaped plate 14, one arm and the adjusting screw(rod) 5 of L shaped plate 14 are hinged, and another arm of L shaped plate 14 matches with bogie 6.Specifically, be provided with the second bearing pin 16 between another arm of two L shaped plates 14, on the second bearing pin 16, turning set is provided with force block 17, and described force block 17 has the stress surface 18 contacted all the time with bogie 6 corresponding site, and described stress surface 18 is plane.And match with force block 17, the 3rd bearing pin 19 for promoting force block 17 is equipped with in bogie 6 lower end, the two ends, left and right of the 3rd bearing pin 19 and the drive plate 35 of bogie 6 are rotationally connected, for reducing friction further, on the 3rd bearing pin 19, turning set is provided with axle sleeve 20, and axle sleeve 20 contacts with stress surface 18.
The utility model pallet is arranged on after on swivel chair, nut 28 synchronous axial system can be driven when rotating regulating handle, because adjusting screw(rod) 5 is that circumference is fixing, and adjusting screw(rod) 5 is due to the gravity of the restriction of swing component 4 and bracket, seat support, adjusting screw(rod) 5 original state is made to produce movement, at this moment nut 28 moves horizontally along adjusting screw(rod) 5 axis direction, will the initial compression degree of regulating spring, then realizes the object of regulating spring to chair reclining power.When people to be sitting on swivel chair backward by time, bracket 2 rotates and makes bogie 6 promote swing component 4 to rotate, and then pulls adjusting screw(rod) 5 to move towards the direction of Compress Spring 26, makes spring 26 produce elastic force to make bracket 2 reset.
During operation, hand, without the need to bending, also without the need to squatting down on the ground, only need be stretched to chair side and touching regulating handle and rotate by user, easy to operate, time saving and energy saving; The most important thing is, spring changes horizontal installation into by vertical mounting means, most of position of seat support is covered in spring and handle, makes chair appearance entirety more succinct, improves product specification.
Embodiment 2: the present embodiment is identical with the principle of embodiment 1, difference is only: as shown in Figure 14 ~ 19, for making rotation more freely and reducing parts size as far as possible, take into account again the requirement of fastness simultaneously, swing component 4 is overall triangular in shape, described swing component 4 comprises the set square 21 that two Parallel Symmetrics are arranged, plane residing for the base plate 7 of plane residing for described set square 21 and base 1 is parallel, be fixedly linked by least one connecting plate 15 between two set squares 21, two angles of set square 21 respectively with base 1 and adjusting screw(rod) 5 hinged, match with bogie 6 in another angle of set square 21.
Specifically, be provided with the second bearing pin 16 between two jiaos of two set squares 21 coordinated at bogie 6, on the second bearing pin 16, turning set is provided with force block 17, and described force block 17 has the stress surface 18 contacted all the time with bogie 6 corresponding site; Corresponding, the two ends, left and right and the bogie 6 that are equipped with the 3rd bearing pin the 19, three bearing pin 19 for promoting force block 17 in bogie 6 lower end are rotationally connected, for reducing friction further, on the 3rd bearing pin 19, turning set is provided with axle sleeve 20, and axle sleeve 20 contacts with stress surface 18.
Again furtherly, as different from Example 1, as shown in Figure 14,15, swing component 4 oppositely installs, namely spring 26 to be on the left of base 1 and to be in base 1 front end, swing component 4 is then in the right side of base 1 with the hinged place of support 10, makes bogie 6 promote swing component 4 and rotate and then Compress Spring when bracket 2 rotates backward.
Embodiment 3: the present embodiment is identical with above-described embodiment principle, and difference is, bogie is that the mode by pulling drives swing component to rotate.
Specifically, as shown in Figure 20 ~ 28, this end that swing component 4 coordinates with bogie 6 is equipped with the 4th bearing pin 22, setting due to bracket 2 rotation direction is that bogie 6 is moved towards the direction away from swing component 4, bracket 23 is provided with in base 1, bracket 23 is connected to form by the parallel planker 24 in two block gaps and at least one connecting plate 15 of connecting two plankers 24, one end and bogie 6 lower end of bracket 23 are hinged, the other end of bracket 23 is equipped with the 5th bearing pin 25, together with 4th bearing pin 22 and both hook joints arranged in a crossed manner with the 5th bearing pin 25, bracket 2 makes bogie 6 pull bracket 23 when rotating, and then pull swing component 4 to make it rotate.
Again furtherly, on the 5th bearing pin 25, turning set is provided with axle sleeve 20, and on the 4th bearing pin 22, turning set is provided with force block 17, and described force block 17 has the stress surface 18 contacted all the time with axle sleeve 20, and described axle sleeve 20 contacts with stress surface 18.
Embodiment 4: the present embodiment is identical with above-described embodiment 1 principle, described swing component 4 is overall L-shaped, difference is, as Figure 29, shown in 30, gas bar jack 37 for gas bar of planting is in the center of base 1, the swing component 4 of L shape is then arranged around gas bar jack 37, in the present embodiment, with base 1 center that is gas bar jack 37 place for boundary, support 10 and spring (not shown) are in the left and right sides of gas bar jack 37 respectively, spring is in pan frontward end or rear end, adjusting screw(rod) 5 is then in the both sides, front and back of gas bar jack 37 respectively with bogie 6, such structural design, make do not affecting under drives structure form of the present utility model, existing space can be made full use of, make structure compacter, reduce volume, make pallet more miniaturized.
Claims (24)
1. a Revolving chair tray, comprise connecting the base of gas bar, in order to connect the bracket of seat support, bracket is connected with base by horizontally disposed rotating shaft, it is characterized in that: also comprise a swing component and horizontally disposed adjusting screw(rod), in one end inserted base of adjusting screw(rod), the other end of adjusting screw(rod) is exposed to outside base, the part that adjusting screw(rod) is exposed to outside base is arranged with spring, and on adjusting screw(rod) is exposed to outside base thread segment, threaded engagement has the nut in order to regulating spring initial deformation degree; Swing component lie low be arranged in base and the middle part of swing component and base hinged, one end of swing component and this end of adjusting screw(rod) inserted base hinged, bracket extends to the bogie in base with one, during carriage turns, the other end of swing component promotes by bogie or pulls swing component is rotated, and then drives adjusting screw(rod) to move and impel camber of spring to form the restoring force of bracket.
2. Revolving chair tray according to claim 1, is characterized in that: the central axis that swing component rotates is in horizontal plane, and the rotation direction of swing component is horizontal direction.
3. Revolving chair tray according to claim 1, is characterized in that: be provided with support at base internal fixtion, and swing component and support are by the first hinge, and the first described bearing pin is arranged perpendicular to horizontal plane.
4. Revolving chair tray according to claim 3, it is characterized in that: described support comprises the gripper shoe of a pair spaced and parallel setting, the side plate of gripper shoe one end and base is fixedly linked, and in gripper shoe, correspondence offers the axis hole coordinated with the first bearing pin, and swing component is arranged between two gripper shoes.
5. Revolving chair tray according to claim 3, it is characterized in that: described support comprises a horizontally disposed gripper shoe, the side plate of gripper shoe one end and base is fixedly linked, correspondingly on the base plate of gripper shoe with base offer the axis hole coordinated with the first bearing pin, swing component is arranged between gripper shoe and the base plate of base.
6. Revolving chair tray according to claim 1, is characterized in that: described swing component entirety is L-shaped.
7. Revolving chair tray according to claim 6, it is characterized in that: described swing component comprises the L shaped plate that two Parallel Symmetrics are arranged, be fixedly linked by least one connecting plate between two L shaped plates, hinged with base in the middle part of L shaped plate, one arm of L shaped plate and adjusting screw(rod) hinged, another arm of L shaped plate matches with bogie.
8. Revolving chair tray according to claim 7, is characterized in that: be provided with the second bearing pin between another arm of two L shaped plates, on the second bearing pin, turning set is provided with force block, and described force block has the stress surface contacted all the time with bogie corresponding site.
9. Revolving chair tray according to claim 1, is characterized in that: be provided with the 3rd bearing pin for promoting swing component in bogie lower end, two ends, left and right and the bogie of the 3rd bearing pin are rotationally connected.
10. Revolving chair tray according to claim 9, is characterized in that: on the 3rd bearing pin, turning set is provided with axle sleeve.
11. Revolving chair trays according to claim 1, is characterized in that: swing component entirety is triangular in shape.
12. Revolving chair trays according to claim 11, it is characterized in that: described swing component comprises the set square that two Parallel Symmetrics are arranged, plane residing for the base plate of plane residing for described set square and base is parallel, be fixedly linked by least one connecting plate between two set squares, two angles of set square respectively with base and adjusting screw(rod) hinged, match with bogie in another angle of set square.
13. Revolving chair trays according to claim 12, it is characterized in that: between two jiaos of two set squares coordinated at bogie, be provided with the second bearing pin, on the second bearing pin, turning set is provided with force block, and described force block has the stress surface contacted all the time with bogie corresponding site.
14. Revolving chair trays according to claim 13, is characterized in that: be provided with the 3rd bearing pin for promoting force block in bogie lower end, two ends, left and right and the bogie of the 3rd bearing pin are rotationally connected.
15. Revolving chair trays according to claim 14, is characterized in that: on the 3rd bearing pin, turning set is provided with axle sleeve.
16. Revolving chair trays according to claim 1, it is characterized in that: this end that swing component coordinates with bogie is equipped with the 4th bearing pin, bracket is provided with in base, one end and the bogie lower end of bracket are hinged, the other end of bracket is equipped with the 5th bearing pin, together with 4th bearing pin and both hook joints arranged in a crossed manner with the 5th bearing pin, make bogie pull bracket during carriage turns, and then pull swing component to make it rotate.
17. Revolving chair trays according to claim 16, it is characterized in that: on the 5th bearing pin, turning set is provided with axle sleeve, on the 4th bearing pin, turning set is provided with force block, and described force block has the stress surface contacted all the time with bogie corresponding site, and described axle sleeve contacts with stress surface.
18. Revolving chair trays according to claim 1, is characterized in that: be respectively provided with a spring support at the two ends of spring, and the two ends of spring offset respectively by the side plate of adjacent spring support and nut, base.
19. Revolving chair trays according to claim 1, is characterized in that: also comprise a regulating handle, and this regulating handle is connected with a sleeve, and described jacket casing is located at outside spring, and nut is fixedly installed at the bottom of sleeve cylinder.
20. Revolving chair trays according to claim 19, is characterized in that: described sleeve has an extension, and described regulating handle and extension are fixed with circumference, the mode of moving axially connects together.
21. Revolving chair trays according to claim 20, is characterized in that: on the sidewall of extension, be in axial direction provided with chute, and on the hollow wall of regulating handle, correspondence is provided with slide block, and slide block is stuck in chute.
22. Revolving chair trays according to claim 1, is characterized in that: described base comprises base plate and is vertically installed in the side plate of base plate both sides, and side plate is provided with the perforation penetrated for adjusting screw(rod) wherein.
23. Revolving chair trays according to claim 1, is characterized in that: bogie upper end and bracket are welded and fixed, and bogie lower end extends in base.
24. Revolving chair trays according to claim 6, it is characterized in that: be provided with the gas bar jack for gas bar of planting in the center of base, swing component is arranged around gas bar jack, with base center for boundary, the hinged place of swing component and base and spring are in the left and right sides of base center respectively, and adjusting screw(rod) is then in the both sides, front and back of base center respectively with bogie.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520781768.7U CN205041037U (en) | 2015-09-27 | 2015-09-27 | Revolving chair stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520781768.7U CN205041037U (en) | 2015-09-27 | 2015-09-27 | Revolving chair stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205041037U true CN205041037U (en) | 2016-02-24 |
Family
ID=55334668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520781768.7U Active CN205041037U (en) | 2015-09-27 | 2015-09-27 | Revolving chair stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205041037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106690960A (en) * | 2017-02-27 | 2017-05-24 | 浙江科技学院 | Seat tray capable of automatically adjusting rigidity of backrest |
-
2015
- 2015-09-27 CN CN201520781768.7U patent/CN205041037U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106690960A (en) * | 2017-02-27 | 2017-05-24 | 浙江科技学院 | Seat tray capable of automatically adjusting rigidity of backrest |
| CN106690960B (en) * | 2017-02-27 | 2024-04-30 | 浙江科技学院 | Seat tray with automatically-adjusted backrest rigidity |
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