CN102837624A - Manual lifting adjustment device with double pawl driving and brake block interchangeability - Google Patents

Abstract

The invention discloses a manual lifting adjustment device with double pawl driving and brake block interchangeability. The manual lifting adjustment device comprises a handle plate (1), a mounting plate (2), a rotating plate (3), a left pawl (4), a right pawl (41), an inner gear driver plate (5), a brake block (6), a snap ring A (7), a snap ring B (71), a driving cam (8), a casing (9), a central shaft (10), an output gear (11), a return spring (12) and an end sleeve (13). According to the manual lifting adjustment device disclosed by the invention, by using the interchangeability of the brake block, the error of the assembly is avoided and the qualification rate of products is improved; the left pawl and the right pawl are respectively and separately in meshed connection with the inner gear driver plate to transmit the torque, so that the defect that the tooth sliding fault easily occurs in the integral pawl is overcome and the work reliability is improved, and further the manual lifting adjustment device for an automobile seat achieves the aims of improving the reliability, simplifying the structure, reducing the size and the weight and reducing the cost.

Description

A kind of pair of ratchet transmission and the interchangeable hand-operated lifting control apparatus of slipper

Technical field

The present invention relates to a kind of elevation and subsidence regulating device, specifically be meant a kind of pair of ratchet transmission and the interchangeable hand-operated lifting control apparatus of slipper that are used for manual regulation automotive seat height.

Background technology

According to driver and crew's demand, the position of automotive seat height can be regulated through elevation and subsidence regulating device, and elevation and subsidence regulating device divides again manually and be electronic, and the automotive seat hand-operated lifting control apparatus of prior art has torsion spring formula and roller; Torsion spring formula operating effort is big and self-lock force is little, be prone to produce from walking phenomenon, can only unidirectional locking, there is the hidden danger of reliability and safety; Roller complex structure, the big Heavy Weight of body, cost height;

Input torque is transmitted in the integral type ratchet of available technology adopting swing and the engagement of internal tooth dial, and is often not in place because of swinging, and is prone to the insecure sliding tooth fault of engagement; In addition; Chinese patent CN101407186A has announced a kind of bidirectional self-locking apparatus, adopts the structure of the locking cam of non-symmetrical locking piece and non-Unitary, and this device is high to the accuracy requirement of locking piece and locking cam; Because the unsymmetric structure of locking cam; Be prone to during assembling make mistakes, cause job efficiency low, cost is high; Therefore, there is poor reliability in prior art, complex structure, the big Heavy Weight of body, the problems and shortcomings that cost is high.

Summary of the invention

Problems and shortcomings to above-mentioned prior art existence; The present invention adopts by two left-right symmetric and separate left pawl and right ratchet the input torque of handle plate is driven the output gear rotation through internal tooth dial, slipper, driving cam; By four identical and interchangeable slipper realization mouth application of force self-locking and brakings; The technical scheme of input end application of force release rotation; Provide a kind of pair of ratchet transmission and slipper interchangeable hand-operated lifting control apparatus, be intended to avoid assembling to make mistakes, improve job efficiency through the interchangeability of slipper; Through with two left pawls and right ratchet independent respectively with the internal tooth dial transfer torque that is connected with a joggle; Avoid the drawback of integral type ratchet; Improve functional reliability; Make automotive seat hand-operated lifting control apparatus, reach the raising reliability, simplified structure, reduce body and weight, purpose that cost-cutting is high.

The objective of the invention is to realize like this: a kind of pair of ratchet transmission and the interchangeable hand-operated lifting control apparatus of slipper; Comprise handle plate, adapter plate, commentaries on classics rotating plate, left pawl, right ratchet, internal tooth dial, slipper, A jump ring, B jump ring, driving cam, shell, center shaft, output gear, retracing spring, end cover, wherein: described handle plate is used to connect handle purposes, steel planar plate members triangular in shape when using; The center of handle plate is provided with manhole and is called first mesopore;

Described adapter plate is used for fixing the discoid punching of the steel plate member that purposes is installed when being application; The outer rim of adapter plate is provided with the connecting arm that stretches out forward and is called the peace link arm, and the center of adapter plate is provided with manhole and is called second mesopore; With said second mesopore is the center of circle, is symmetry with line of centers up and down, and the top of adapter plate is provided with two through holes symmetrical, reducing circular arc and is called guide groove;

Described commentaries on classics rotating plate is discoid punching of the steel plate member; The outer rim place, top that changes rotating plate is provided with the reset arm of stretching out forward and is called the commentaries on classics dibrachia, and the center of changeing rotating plate is provided with manhole and is called the 3rd mesopore; The top that is positioned at line of centers up and down and changes rotating plate is provided with manhole and is called axis hole, and two limits are respectively equipped with and are used to pass the left guide pillar of left pawl and right ratchet and the through hole of right guide pillar is called perforation about said axis hole;

Described left pawl and right ratchet are the steel components of the similar fan-shaped bulk of ring of two symmetries; The right of left pawl is provided with manhole and is called the right-hand rotation hole; The trailing flank on the left side of left pawl is provided with the columniform left guide pillar of protrusion; The diameter of said left guide pillar is provided with triangle teeth section and is called left tooth section less than the penetration hole diameter on the said axis hole left side of changeing rotating plate above the left pawl left side; The left side of right ratchet is provided with manhole and is called the left-hand rotation hole; The trailing flank on the right of right ratchet is provided with the columniform right guide pillar of protrusion; The diameter of said right guide pillar is provided with triangle teeth section above right ratchet the right and is called right tooth section less than the penetration hole diameter on the said axis hole the right of changeing rotating plate; Left pawl and right ratchet are positioned at the front of changeing rotating plate and are rotatably mounted to the said axis hole place that changes rotating plate by the rotating shaft polyphone, and said rotating shaft is the steel components that the rear end is provided with the cylinder step of flange; The said left guide pillar of left pawl and the said right guide pillar of right ratchet pass the back that the said perforation of changeing rotating plate is stretched out backward changes rotating plate respectively, set off below left pawl and the right ratchet ratchet shell fragment with the cylinder that keeps left pawl and right ratchet to open each other making said left guide pillar and right guide pillar respectively with said axis hole about the top hole wall of said perforation on two limits contact;

Described internal tooth dial is discoid steel components; The center of internal tooth dial is provided with manhole and is called the 4th mesopore, and the front of internal tooth dial is provided with the symmetry fan-shaped circumferential shift fork of ring of protrusion forward along circumference; The back of internal tooth dial is provided with the frame that encloses of annular arrangement along circumference, and the said madial wall that encloses frame is provided with the triangle teeth and is called internal tooth;

Described slipper is to face projection to be the steel components that 1/3 arc circle lacks cylindricality; The circular arc cylinder center of slipper is provided with the fan-shaped circumferential breach of ring vertically, and the width of said circumferential breach is greater than the width of the said circumferential shift fork of internal tooth dial; The straight cylinder center of slipper is provided with groove vertically and is called and stirs groove; Said stir groove about two limits be respectively equipped with two semi-round grooves arranged side by side and be called the jump ring groove;

Described A jump ring is the steel wire matter moment of torsion spring of two identical annular arrangements with the B jump ring, and A jump ring and B jump ring are equipped with vertically the end other end grab of bending backward forward;

Described driving cam is oblong block steel components for facing projection; The rectangular-shaped flange that two limits are provided with protrusion about driving cam is called dials key; The center of driving cam is provided with square shape flange and is called tenon, and the center of said tenon is provided with the manhole that penetrates driving cam vertically and is called the 5th mesopore; Downward projection, the top and following center of driving cam are provided with upwards and the circular-arc partition wall that protrudes downwards;

Described shell is located at outer casing bottom central circular through hole and is called the 6th mesopore for the back is opened wide, the front has the end and bottom centre to be provided with the member of the round barrel shape punching of the steel plate of manhole; The bead place, back of shell is provided with the connecting arm that two limits to the left and right stretches out respectively and is called outer link arm, and the outer rim place, top of the back bead of shell is provided with the reset arm of stretching out forward and is called outer dibrachia;

Described center shaft is a cylinder step steel components;

Described output gear is the cylindrical straight gear involute tooth gear; The rear portion of output gear cylinder is that one section cylinder cylinder with height such as anterior teeth crest grade is called the light face, and the groove that the center, back of output gear is provided with the said tenon close fit of driving cam is called back tenon mouth; Said tenon mouth center is provided with the manhole that runs through output gear along axis and is called the 7th mesopore; The groove that the front of output gear is provided with the end tenon close fit that overlaps with said end is called preceding tenon mouth;

Described end cover is the steel components of cylinder step, and the anterior small stair cylinder of end cover is provided with outside thread, and the flat key shape flange that the center, back of end cover is provided with protrusion is called the end tenon; The center of end cover is provided with the manhole that runs through along axis and is called the 8th mesopore;

Described retracing spring is the torsion spring of cylindrical screw shape;

The outside, by after forward, handle plate, adapter plate, commentaries on classics rotating plate, internal tooth dial, shell are superimposed; Wherein, adapter plate is captiveed joint with shell, and handle plate is captiveed joint with the commentaries on classics rotating plate; Adapter plate is clamped in handle plate rotationally and changes between the rotating plate; Reseting spring sleeve is at the outer wall place of shell, and an end of retracing spring is connected with the said commentaries on classics dibrachia hook that changes rotating plate, and the other end of retracing spring is connected with the said outer dibrachia hook of shell;

Inner; Left pawl and right ratchet stretch out said left guide pillar and the slip of right guide pillar of changeing rotating plate back and are embedded in the said guide groove of adapter plate, the said left tooth section of left pawl and right ratchet and right tooth section corresponding to the following of the said internal tooth of internal tooth dial and not with said internal gearing;

Up and down four slipper amalgamations constitute one cylindrical and be positioned at the front of internal tooth dial; Opsition dependent be called respectively the back, down the back, go forward, down before slipper; Wherein, The A jump ring said grab of bending backward is connected with the said jump ring groove hook of said back down slipper, and the A jump ring said grab of bending forward is connected with the said jump ring groove hook of the said slipper of going forward; The B jump ring said grab of bending backward is connected with the said said jump ring groove hook of going up the back slipper, and the B jump ring said grab of bending forward is connected with the said jump ring groove hook of said down preceding slipper; A jump ring and B jump ring stretch tight out four slipper, make up and down before and after about the said circumferential breach of four slipper the circular arc cylinder on two limits contact with the inwall of shell, the said circumferential shift fork activity of internal tooth dial is positioned at the said circumferential breach of slipper;

The driving cam live splint is up and down between four slipper in front and back; Wherein, Slipper is positioned at the back of the said partition wall above the driving cam after said the going up; The said slipper of going forward is positioned at the front of the said partition wall above the driving cam, and said back down slipper is positioned at the back of the said partition wall below the driving cam, and said down preceding slipper is positioned at the front of the said partition wall below the driving cam; The said tenon of driving cam is connected with the said back tenon mouth bonding of output gear, and the said preceding tenon mouth of output gear is connected with the said end tenon bonding of end cover;

The center shaft slip is passed said the 4th mesopore of said first mesopore of handle plate, said second mesopore of adapter plate, said the 3rd mesopore that changes rotating plate, internal tooth dial, said the 5th mesopore of driving cam, said the 7th mesopore of output gear and said the 8th mesopore of end cover handle plate, adapter plate, commentaries on classics rotating plate, internal tooth dial, driving cam, output gear and end is overlapped same tandem shafts, and the front end of center shaft is connected with the front riveted that end overlaps; The said light face of output gear slides and is arranged in said the 6th mesopore of shell;

The direction face of structure representation is divided into the up, down, left, right, before and after face, and wherein, the front is the face in the face of institute's statement main body, is the face relative with said front at the back.

Principle of work and beneficial effect

During application, handle plate and bar handle are connected to input end, and adapter plate is captiveed joint with the pedestal of automotive seat, and the lifter rack of output gear and automotive seat is connected with a joggle and is mouth.

During work, from the input end application of force, that is, manual control handle wrench fixed handle plate is made the circumference angular motion:

When rotating counterclockwise handle plate; The said left guide pillar of left pawl and right ratchet and right guide pillar receive the guiding of the said guide groove of adapter plate; The said internal gearing of the said left tooth section of left pawl and internal tooth dial drives the internal tooth dial and rotates counterclockwise; The circumferential shift fork of internal tooth dial is four slipper before and after the circumferential breach of slipper forces in up and down; The elastic force of four the stressed A of overcoming jump rings of slipper, B jump ring entad draw the clamping driving cam in and drive output gear, the end interplanting rotates counterclockwise, output gear through with its ingear tooth bar, convert the dipping and heaving of regulating the automotive seat height into rotating counterclockwise;

When clockwise rotating handle plate, in like manner, the said internal gearing of the said right tooth section of right ratchet and internal tooth dial drives the internal tooth dial and does to rotate counterclockwise, and rotates counterclockwise thereby drive the output gear crop rotation;

Unclamp bar handle, retracing spring drives commentaries on classics rotating plate, handle plate and bar handle and resets, and simultaneously, left pawl, right ratchet also reset;

From the mouth application of force, that is, seat is through installing the reverse application of force by mouth to this with output gear ingear tooth bar:

When to the output gear conter clockwise application of force; With output gear bonding bonded assembly driving cam conter clockwise to the slipper application of force; With the combined action of A jump ring, B jump ring under; Make go forward and descend before the inwall tensioning of circular arc cylinder and shell of two slipper brake, and the application of force more greatly then tensile force is big more;

When to the output gear cw application of force; With the output gear bonding bonded assembly driving cam clockwise direction slipper application of force; With the combined action of A jump ring, B jump ring under; Make the back with down after the circular arc cylinder of two slipper brake with the inwall tensioning of shell, and the application of force more greatly then tensile force is big more.

This device has avoided assembling to make mistakes owing to adopt unified interchangeable slipper to reduce the complexity of structure, has improved the qualification rate of goods; This device through with two left pawls and right ratchet independent respectively with the internal tooth dial transfer torque that is connected with a joggle, avoided the integral type ratchet to be prone to take place the drawback of sliding tooth fault, improved the reliability of work.

Above-mentioned; The present invention adopts by two left-right symmetric and separate left pawl and right ratchet the input torque of handle plate is driven the output gear rotation through internal tooth dial, slipper, driving cam; By four identical and interchangeable slipper realization mouth application of force self-locking and brakings, the technical scheme of input end application of force release rotation has overcome prior art and has had poor reliability; Complex structure, the big Heavy Weight of body, the problems and shortcomings that cost is high; A kind of pair of ratchet transmission that is provided and the interchangeable hand-operated lifting control apparatus of slipper avoid assembling to make mistakes through the interchangeability of slipper, improve job efficiency; Through with two left pawls and right ratchet independent respectively with the internal tooth dial transfer torque that is connected with a joggle; Avoided the integral type ratchet to be prone to take place the drawback of sliding tooth fault; Improved functional reliability; Make automotive seat hand-operated lifting control apparatus, reached the raising reliability, simplified structure, reduce the purpose of body and weight, cost-cutting.

Description of drawings

Fig. 1 is the structure cross-sectional schematic of a kind of pair of ratchet transmission of the present invention and the interchangeable hand-operated lifting control apparatus of slipper;

Fig. 2 is the axle survey scheme drawing that slipper, the driving cam of a kind of pair of ratchet transmission of the present invention and the interchangeable hand-operated lifting control apparatus of slipper is positioned at the shell position;

Fig. 3 is a kind of pair of ratchet transmission of the present invention and the left pawl of the interchangeable hand-operated lifting control apparatus of slipper, right ratchet and adapter plate, change the scheme drawing of the interrelation between rotating plate, the internal tooth dial;

Fig. 4 is that the axle of the external structure of a kind of pair of ratchet transmission of the present invention and the interchangeable hand-operated lifting control apparatus of slipper is surveyed scheme drawing;

Fig. 5 is that the disassembled axle of a kind of pair of ratchet transmission of the present invention and the interchangeable hand-operated lifting control apparatus of slipper is surveyed scheme drawing;

Fig. 6 is that the left optical axis of Fig. 5 is surveyed scheme drawing.

Embodiment below in conjunction with in the accompanying drawing does further explain to the present invention, but should not be construed as any restriction of the present invention.

Among the figure: handle plate 1, adapter plate 2, guide groove 21, commentaries on classics rotating plate 3, left pawl 4, right ratchet 41, rotating shaft 42, ratchet shell fragment 43, internal tooth dial 5, circumferential shift fork 51, slipper 6, circumferential breach 61, A jump ring 7, B jump ring 71, driving cam 8, shell 9, center shaft 10, output gear 11, retracing spring 12, end cover 13.

The specific embodiment

Consult Fig. 1～Fig. 6; A kind of pair of ratchet transmission of the present invention and the interchangeable hand-operated lifting control apparatus of slipper; Comprise handle plate 1, adapter plate 2, change rotating plate 3, left pawl 4, right ratchet 41, internal tooth dial 5, slipper 6, A jump ring 7, B jump ring 71, driving cam 8, shell 9, center shaft 10, output gear 11, retracing spring 12, end cover 13, wherein: described handle plate 1 is used to connect handle purposes, steel planar plate members triangular in shape when using; The center of handle plate 1 is provided with manhole and is called first mesopore;

Described adapter plate 2 is used for fixing the discoid punching of the steel plate member that purposes is installed when being application; The outer rim of adapter plate 2 is provided with the connecting arm that stretches out forward and is called the peace link arm, and the center of adapter plate 2 is provided with manhole and is called second mesopore; With said second mesopore is the center of circle, is symmetry with line of centers up and down, and the top of adapter plate 2 is provided with two through holes symmetrical, reducing circular arc and is called guide groove 21;

Described commentaries on classics rotating plate 3 is discoid punching of the steel plate member; The outer rim place, top that changes rotating plate 3 is provided with the reset arm of stretching out forward and is called the commentaries on classics dibrachia, and the center of changeing rotating plate 3 is provided with manhole and is called the 3rd mesopore; The top that is positioned at line of centers up and down and changes rotating plate 3 is provided with manhole and is called axis hole, and two limits are respectively equipped with and are used to pass the left pawl 4 and the left guide pillar of right ratchet 41 and the through hole of right guide pillar and are called perforation about said axis hole;

Described left pawl 4 and right ratchet 41 are the steel components of the similar fan-shaped bulk of ring of two symmetries; The right of left pawl 4 is provided with manhole and is called the right-hand rotation hole; The trailing flank on the left side of left pawl 4 is provided with the columniform left guide pillar of protrusion; The diameter of said left guide pillar is provided with triangle teeth section and is called left tooth section less than the penetration hole diameter on the said axis hole left side of changeing rotating plate 3 above left pawl 4 left sides; The left side of right ratchet 41 is provided with manhole and is called the left-hand rotation hole; The trailing flank on the right of right ratchet 41 is provided with the columniform right guide pillar of protrusion; The diameter of said right guide pillar is provided with triangle teeth section above right ratchet 41 the right and is called right tooth section less than the penetration hole diameter on the said axis hole the right of changeing rotating plate 3; Left pawl 4 is positioned at the front of changeing rotating plate 3 with right ratchet 41 and is rotatably mounted to the said axis hole place that changes rotating plate 3 by rotating shaft 42 polyphones, and said rotating shaft 42 is provided with the steel components of the cylinder step of flange for the rear end; The said left guide pillar of left pawl 4 and the said right guide pillar of right ratchet 41 pass the back that the said perforation of changeing rotating plate 3 is stretched out backward changes rotating plate 3 respectively, set off below left pawl 4 and the right ratchet 41 ratchet shell fragment 43 with maintenance left pawl 4 and right ratchet 41 open each other make said left guide pillar and right guide pillar cylinder respectively with said axis hole about the top hole wall of said perforation on two limits contact;

Described internal tooth dial 5 is discoid steel components; The center of internal tooth dial 5 is provided with manhole and is called the 4th mesopore, and the front of internal tooth dial 5 is provided with the symmetry fan-shaped circumferential shift fork 51 of ring of protrusion forward along circumference; The back of internal tooth dial 5 is provided with the frame that encloses of annular arrangement along circumference, and the said madial wall that encloses frame is provided with the triangle teeth and is called internal tooth;

Described slipper 6 is the steel components that 1/3 arc circle lacks cylindricality for facing projection; The circular arc cylinder center of slipper 6 is provided with the fan-shaped circumferential breach 61 of ring vertically, and the width of said circumferential breach 61 is greater than the width of the said circumferential shift fork 51 of internal tooth dial 5; The straight cylinder center of slipper 6 is provided with groove vertically and is called and stirs groove; Said stir groove about two limits be respectively equipped with two semi-round grooves arranged side by side and be called the jump ring groove;

Described A jump ring 7 is the steel wire matter moment of torsion spring of two identical annular arrangements with B jump ring 71, and A jump ring 7 and B jump ring 71 are equipped with vertically the end other end grab of bending backward forward;

Described driving cam 8 is oblong block steel components for facing projection; The rectangular-shaped flange that two limits are provided with protrusion about driving cam 8 is called dials key; The center of driving cam 8 is provided with square shape flange and is called tenon, and the center of said tenon is provided with the manhole that penetrates driving cam 8 vertically and is called the 5th mesopore; Downward projection, the top and following center of driving cam 8 are provided with upwards and the circular-arc partition wall that protrudes downwards:

Described shell 9 is for the back is opened wide, the front has the end and bottom centre to be provided with the member of the round barrel shape punching of the steel plate of manhole, and the manhole that is located at shell 9 bottom centre is called the 6th mesopore; The bead place, back of shell 9 is provided with the connecting arm that two limits to the left and right stretches out respectively and is called outer link arm, and the outer rim place, top of the back bead of shell 9 is provided with the reset arm of stretching out forward and is called outer dibrachia;

Described center shaft 10 is a cylinder step steel components;

Described output gear 11 is the cylindrical straight gear involute tooth gear; The rear portion of output gear 11 cylinders is that one section cylinder cylinder with height such as anterior teeth crest grade is called the light face, and the groove that the center, back of output gear 11 is provided with the said tenon close fit of driving cam 8 is called back tenon mouth; Said tenon mouth center is provided with the manhole that runs through output gear 11 along axis and is called the 7th mesopore; Tenon mouth before the front of output gear 11 is provided with groove with the end tenon close fit of said end cover 13 and is called;

Described end cover 13 is the steel components of cylinder step, and the anterior small stair cylinder of end cover 13 is provided with outside thread, and the flat key shape flange that the center, back of end cover 13 is provided with protrusion is called the end tenon; The center of end cover 13 is provided with the manhole that runs through along axis and is called the 8th mesopore;

Described retracing spring 12 is the torsion spring of cylindrical screw shape;

The outside, by after forward, handle plate 1, adapter plate 2, change rotating plate 3, internal tooth dial 5, shell 9 and be superimposed; Wherein, adapter plate 2 is captiveed joint with shell 9, and handle plate 1 is captiveed joint with commentaries on classics rotating plate 3; Adapter plate 2 is clamped in handle plate 1 rotationally and changes between the rotating plate 3; Retracing spring 12 is enclosed within the outer wall place of shell 9, and an end of retracing spring 12 is connected with the said commentaries on classics dibrachia hook that changes rotating plate 3, and the other end of retracing spring 12 is connected with the said outer dibrachia hook of shell 9;

Inner; Left pawl 4 and right ratchet 41 stretch out the said left guide pillar that changes rotating plate 3 back and right guide pillar and slide and be embedded in the said guide groove 21 of adapter plate 2, the said left tooth section of left pawl 4 and right ratchet 41 and right tooth section corresponding to the following of the said internal tooth of internal tooth dial 5 and not with said internal gearing;

Up and down four slipper 6 amalgamations constitute one cylindrical and be positioned at the front of internal tooth dial 5; Opsition dependent be called respectively the back, down the back, go forward, down before slipper; Wherein, The A jump ring 7 said grab of bending backward is connected with the said jump ring groove hook of said back down slipper, and the A jump ring 7 said grab of bending forward is connected with the said jump ring groove hook of the said slipper of going forward; The B jump ring 71 said grab of bending backward is connected with the said said jump ring groove hook of going up the back slipper, and the B jump ring 71 said grab of bending forward is connected with the said jump ring groove hook of said down preceding slipper; A jump ring 7 stretches tight out four slipper 6 with B jump ring 71; The circular arc cylinder on said circumferential breach about 61 two limits of four slipper 6 contacts with the inwall of shell 9 before and after making up and down, and said circumferential shift fork 51 activities of internal tooth dial 5 are positioned at the said circumferential breach 61 of slipper 6;

Driving cam 8 live splints are up and down between four slipper 6 in front and back; Wherein, Slipper is positioned at the back of the said partition wall above the driving cam 8 after said the going up; The said slipper of going forward is positioned at the front of the said partition wall above the driving cam 8, and said back down slipper is positioned at the back of the said partition wall below the driving cam 8, said down before slipper be positioned at the front of the said partition wall below the driving cam 8; The said tenon of driving cam 8 is connected with the said back tenon mouth bonding of output gear 11, and the said preceding tenon mouth of output gear 11 is connected with the said end tenon bonding of end cover 13;

Center shaft 10 slide said the 8th mesopore of said the 7th mesopore and end cover 13 of said the 5th mesopore, output gear 11 of said the 4th mesopore, driving cam 8 of said first mesopore that passes handle plate 1, said second mesopore of adapter plate 2, said the 3rd mesopore that changes rotating plate 3, internal tooth dial 5 with handle plate 1, adapter plate 2, change rotating plate 3, internal tooth dial 5, driving cam 8, output gear 11 and end cover 13 same tandem shafts, the front end of center shaft 10 and end overlap 13 front riveted and are connected; The said light face of output gear 11 slides and is arranged in said the 6th mesopore of shell 9;

The direction face of structure representation is divided into the up, down, left, right, before and after face, and wherein, the front is the face in the face of institute's statement main body, is the face relative with said front at the back.

Principle of work and beneficial effect

During application, handle plate 1 is connected to input end with bar handle, and adapter plate 2 is captiveed joint with the pedestal of automotive seat, and the lifter rack of output gear 11 and automotive seat is connected with a joggle and is mouth.

During work, from the input end application of force, that is, manual control handle wrench fixed handle plate 1 is made the circumference angular motion:

When rotating counterclockwise handle plate 1; The said left guide pillar of left pawl 4 and right ratchet 41 and the guiding of the said guide groove 21 that right guide pillar receives adapter plate 2; The said internal gearing of the said left tooth section of left pawl 4 and internal tooth dial 5 drives internal tooth dial 5 and rotates counterclockwise; The circumferential shift fork 51 of internal tooth dial 5 is four slipper 6 before and after the circumferential breach 61 of slipper 6 forces in up and down; The elastic force of the stressed A of the overcoming jump ring of four slipper 67, B jump ring 71 entad draw clamping driving cam 8 in and drive output gear 11, end cover 13 rotates counterclockwise; Output gear 11 through with its ingear tooth bar, convert the dipping and heaving of regulating the automotive seat height into rotating counterclockwise;

When clockwise rotating handle plate 1, in like manner, the said internal gearing of the said right tooth section of right ratchet 41 and internal tooth dial 5 drives internal tooth dial 5 and does to rotate counterclockwise, and rotates counterclockwise thereby drive output gear 11;

Unclamp bar handle, retracing spring 12 drives commentaries on classics rotating plate 3, handle plate 1 and bar handle and resets, and simultaneously, left pawl 4, right ratchet 41 also reset;

From the mouth application of force, that is, seat is through installing the reverse application of force by mouth to this with output gear 11 ingear tooth bars:

When to the output gear 11 conter clockwise application of forces; With output gear 11 bonding bonded assembly driving cams 8 conter clockwises to slipper 6 application of forces; With the combined action of A jump ring 7, B jump ring 71 under; Make go forward and descend before the inwall tensioning of circular arc cylinder and shell 9 of two slipper 6 brake, and the application of force more greatly then tensile force is big more;

When to the output gear 11 cw application of forces; With output gear 11 bonding bonded assembly driving cams 8 clockwise direction slipper 6 application of forces; With the combined action of A jump ring 7, B jump ring 71 under; Make the back with down after the circular arc cylinder of two slipper 6 brake with the inwall tensioning of shell 9, and the application of force more greatly then tensile force is big more.

This device has avoided assembling to make mistakes owing to adopt unified interchangeable slipper 6 to reduce the complexity of structure, has improved the qualification rate of goods; This device through with two left pawls 4 and right ratchet 41 independent respectively with internal tooth dial 5 transfer torque that is connected with a joggle, avoided the integral type ratchet to be prone to take place the drawback of sliding tooth fault, improved the reliability of work.

Claims (1)

1. two ratchet transmissions and the interchangeable hand-operated lifting control apparatus of slipper; It is characterized in that: comprise handle plate (1), adapter plate (2), change rotating plate (3), left pawl (4), right ratchet (41), internal tooth dial (5), slipper (6), A jump ring (7), B jump ring (71), driving cam (8), shell (9), center shaft (10), output gear (11), retracing spring (12), end cover (13) that wherein: described handle plate (1) is used to connect handle purposes, steel planar plate members triangular in shape when using; The center of handle plate (1) is provided with manhole and is called first mesopore;

Described adapter plate (2) is used for fixing the discoid punching of the steel plate member that purposes is installed when being application; The outer rim of adapter plate (2) is provided with the connecting arm that stretches out forward and is called the peace link arm, and the center of adapter plate (2) is provided with manhole and is called second mesopore; With said second mesopore is the center of circle, is symmetry with line of centers up and down, and the top of adapter plate (2) is provided with two through holes symmetrical, reducing circular arc and is called guide groove (21);

Described commentaries on classics rotating plate (3) is discoid punching of the steel plate member; The outer rim place, top that changes rotating plate (3) is provided with the reset arm of stretching out forward and is called the commentaries on classics dibrachia, and the center of changeing rotating plate (3) is provided with manhole and is called the 3rd mesopore; The top that is positioned at line of centers up and down and changes rotating plate (3) is provided with manhole and is called axis hole, and two limits are respectively equipped with and are used to pass the left pawl (4) and the left guide pillar of right ratchet (41) and the through hole of right guide pillar and are called perforation about said axis hole;

Described left pawl (4) and right ratchet (41) are the steel components of the similar fan-shaped bulk of ring of two symmetries; The right of left pawl (4) is provided with manhole and is called the right-hand rotation hole; The trailing flank on the left side of left pawl (4) is provided with the columniform left guide pillar of protrusion; The diameter of said left guide pillar is provided with triangle teeth section above left pawl (4) left side and is called left tooth section less than the penetration hole diameter on the said axis hole left side of changeing rotating plate (3); The left side of right ratchet (41) is provided with manhole and is called the left-hand rotation hole; The trailing flank on the right of right ratchet (41) is provided with the columniform right guide pillar of protrusion; The diameter of said right guide pillar is provided with triangle teeth section above right ratchet (41) the right and is called right tooth section less than the penetration hole diameter on the said axis hole the right of changeing rotating plate (3); Left pawl (4) and right ratchet (41) are positioned at the front of changeing rotating plate (3) and are rotatably mounted to the said axis hole place that changes rotating plate (3) by rotating shaft (42) polyphone, and said rotating shaft (42) is provided with the steel components of the cylinder step of flange for the rear end; The said right guide pillar of the said left guide pillar of left pawl (4) and right ratchet (41) passes the back that the said perforation of changeing rotating plate (3) is stretched out backward changes rotating plate (3) respectively, set off below left pawl (4) and the right ratchet (41) ratchet shell fragment (43) with maintenance left pawl (4) and right ratchet (41) open each other make said left guide pillar and right guide pillar cylinder respectively with said axis hole about the top hole wall of said perforation on two limits contact;

Described internal tooth dial (5) is discoid steel components; The center of internal tooth dial (5) is provided with manhole and is called the 4th mesopore, and the front of internal tooth dial (5) is provided with the symmetry fan-shaped circumferential shift fork (51) of ring of protrusion forward along circumference; The back of internal tooth dial (5) is provided with the frame that encloses of annular arrangement along circumference, and the said madial wall that encloses frame is provided with the triangle teeth and is called internal tooth;

Described slipper (6) is the steel components that 1/3 arc circle lacks cylindricality for facing projection; The circular arc cylinder center of slipper (6) is provided with the fan-shaped circumferential breach (61) of ring vertically, and the width of said circumferential breach (61) is greater than the width of the said circumferential shift fork (51) of internal tooth dial (5); The straight cylinder center of slipper (6) is provided with groove vertically and is called and stirs groove; Said stir groove about two limits be respectively equipped with two semi-round grooves arranged side by side and be called the jump ring groove;

Described A jump ring (7) is the steel wire matter moment of torsion spring of two identical annular arrangements with B jump ring (71), and A jump ring (7) and B jump ring (71) are equipped with vertically the end other end grab of bending backward forward;

Described driving cam (8) is oblong block steel components for facing projection; The rectangular-shaped flange that two limits are provided with protrusion about driving cam (8) is called dials key; The center of driving cam (8) is provided with square shape flange and is called tenon, and the center of said tenon is provided with the manhole that penetrates driving cam (8) vertically and is called the 5th mesopore; Downward projection, the top and following center of driving cam (8) are provided with upwards and the circular-arc partition wall that protrudes downwards;

Described shell (9) is for the back is opened wide, the front has the end and bottom centre to be provided with the member of the round barrel shape punching of the steel plate of manhole, and the manhole that is located at shell (9) bottom centre is called the 6th mesopore; The bead place, back of shell (9) is provided with the connecting arm that two limits to the left and right stretches out respectively and is called outer link arm, and the outer rim place, top of the back bead of shell (9) is provided with the reset arm of stretching out forward and is called outer dibrachia;

Described center shaft (10) is a cylinder step steel components;

Described output gear (11) is the cylindrical straight gear involute tooth gear; The rear portion of output gear (11) cylinder is that one section cylinder cylinder with height such as anterior teeth crest grade is called the light face, and the groove that the center, back of output gear (11) is provided with the said tenon close fit of driving cam (8) is called back tenon mouth; Said tenon mouth center is provided with the manhole that runs through output gear (11) along axis and is called the 7th mesopore; Tenon mouth before the front of output gear (11) is provided with groove with the end tenon close fit of said end cover (13) and is called;

Described end cover (13) is the steel components of cylinder step, and the anterior small stair cylinder of end cover (13) is provided with outside thread, and the flat key shape flange that the center, back of end cover (13) is provided with protrusion is called the end tenon; The center of end cover (13) is provided with the manhole that runs through along axis and is called the 8th mesopore;

Described retracing spring (12) is the torsion spring of cylindrical screw shape;

Outside; By after forward, handle plate (1), adapter plate (2), change rotating plate (3), internal tooth dial (5), shell (9) and be superimposed, wherein; Adapter plate (2) is captiveed joint with shell (9); Handle plate (1) is captiveed joint with commentaries on classics rotating plate (3), and adapter plate (2) is clamped in handle plate (1) rotationally and changes between the rotating plate (3), and retracing spring (12) is enclosed within the outer wall place of shell (9); One end of retracing spring (12) is connected with the said commentaries on classics dibrachia hook that changes rotating plate (3), and the other end of retracing spring (12) is connected with the said outer dibrachia hook of shell (9);

Inner; Left pawl (4) and right ratchet (41) stretch out said left guide pillar and the slip of right guide pillar of changeing rotating plate (3) back and are embedded in the said guide groove (21) of adapter plate (2), the said left tooth section of left pawl (4) and right ratchet (41) and right tooth section corresponding to the following of the said internal tooth of internal tooth dial (5) and not with said internal gearing;

Up and down four slipper (6) amalgamations constitute one cylindrical and be positioned at the front of internal tooth dial (5); Opsition dependent be called respectively the back, down the back, go forward, down before slipper; Wherein, A jump ring (7) the said grab of bending backward is connected with the said jump ring groove hook of said back down slipper, and A jump ring (7) the said grab of bending forward is connected with the said jump ring groove hook of the said slipper of going forward; B jump ring (71) the said grab of bending backward is connected with the said said jump ring groove hook of going up the back slipper, and B jump ring (71) the said grab of bending forward is connected with the said jump ring groove hook of said down preceding slipper; A jump ring (7) and B jump ring (71) stretch tight out four slipper (6); Before and after making up and down about the said circumferential breach (61) of four slipper (6) the circular arc cylinder on two limits contact with the inwall of shell (9), said circumferential shift fork (51) activity of internal tooth dial (5) is positioned at the said circumferential breach (61) of slipper (6);

Driving cam (8) live splint is up and down between four slipper in front and back (6); Wherein, Slipper is positioned at the back of the said partition wall above the driving cam (8) after said the going up; The said slipper of going forward is positioned at the front of the top said partition wall of driving cam (8), and said back down slipper is positioned at the back of the said partition wall below the driving cam (8), and said down preceding slipper is positioned at the front of the said partition wall below the driving cam (8); The said tenon of driving cam (8) is connected with the said back tenon mouth bonding of output gear (11), and the said preceding tenon mouth of output gear (11) is connected with the said end tenon bonding of end cover (13);

Center shaft (10) slip is passed said the 4th mesopore of said first mesopore of handle plate (1), said second mesopore of adapter plate (2), said the 3rd mesopore that changes rotating plate (3), internal tooth dial (5), said the 5th mesopore of driving cam (8), said the 7th mesopore of output gear (11) and said the 8th mesopore of end cover (13) handle plate (1), adapter plate (2), commentaries on classics rotating plate (3), internal tooth dial (5), driving cam (8), output gear (11) and end is overlapped (13) same tandem shafts, and the front end of center shaft (10) is connected with the front riveted of end cover (13); The said light face of output gear (11) slides and is arranged in said the 6th mesopore of shell (9);

The direction face of structure representation is divided into the up, down, left, right, before and after face, and wherein, the front is the face in the face of institute's statement main body, is the face relative with said front at the back.

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